Adding upstream version 1:10.5.12.upstream/1%10.5.12upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

928 files changed, 219479 insertions, 0 deletions

diff --git a/storage/spider/CMakeLists.txt b/storage/spider/CMakeLists.txt
new file mode 100644
index 00000000..397478bf
--- /dev/null
+++ b/storage/spider/CMakeLists.txt
@@ -0,0 +1,83 @@
+SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DHAVE_HANDLERSOCKET")
+SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DHAVE_HANDLERSOCKET")
+
+IF(HAVE_WVLA)
+  SET(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -Wno-vla")
+  SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wno-vla")
+ENDIF()
+
+IF(MSVC)
+  # Temporarily disable "conversion from size_t .."
+  IF(CMAKE_SIZEOF_VOID_P EQUAL 8)
+    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /wd4267")
+  ENDIF()
+ENDIF()
+
+SET(SPIDER_SOURCES
+  spd_param.cc spd_sys_table.cc spd_trx.cc spd_db_conn.cc spd_conn.cc
+  spd_table.cc spd_direct_sql.cc spd_udf.cc spd_ping_table.cc
+  spd_copy_tables.cc spd_i_s.cc spd_malloc.cc ha_spider.cc spd_udf.def
+  spd_db_mysql.cc spd_db_handlersocket.cc spd_db_oracle.cc
+  spd_group_by_handler.cc spd_db_include.cc
+  hs_client/config.cpp hs_client/escape.cpp hs_client/fatal.cpp
+  hs_client/hstcpcli.cpp hs_client/socket.cpp hs_client/string_util.cpp
+)
+
+IF(DEFINED ENV{ORACLE_HOME})
+  SET(ORACLE_HOME $ENV{ORACLE_HOME})
+  FIND_PATH(ORACLE_INCLUDE_DIR oci.h PATHS ${ORACLE_HOME}/rdbms/public)
+  SET(ORACLE_OCI_LIB_NAME clntsh)
+  SET(ORACLE_LIB_DIR ${ORACLE_HOME}/lib)
+  FIND_LIBRARY(ORACLE_OCI_LIBRARY NAMES ${ORACLE_OCI_LIB_NAME} PATHS ${ORACLE_LIB_DIR})
+ENDIF()
+
+IF(EXISTS ${PROJECT_SOURCE_DIR}/storage/mysql_storage_engine.cmake)
+  SET(CMAKE_CXX_FLAGS_DEBUG
+    "${CMAKE_CXX_FLAGS_DEBUG} -DSAFEMALLOC -DSAFE_MUTEX -DUSE_SYMDIR /Zi")
+  SET(CMAKE_C_FLAGS_DEBUG
+    "${CMAKE_C_FLAGS_DEBUG} -DSAFEMALLOC -DSAFE_MUTEX -DUSE_SYMDIR /Zi")
+  SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} /MAP /MAPINFO:EXPORTS")
+  INCLUDE("${PROJECT_SOURCE_DIR}/storage/mysql_storage_engine.cmake")
+
+  INCLUDE_DIRECTORIES(
+    ${CMAKE_SOURCE_DIR}/include
+    ${CMAKE_SOURCE_DIR}/sql
+    ${CMAKE_SOURCE_DIR}/regex)
+
+  MYSQL_STORAGE_ENGINE(SPIDER)
+ELSEIF(PLUGIN_PARTITION MATCHES "^NO$")
+  MESSAGE(STATUS "Spider is skipped because partitioning is disabled")
+ELSE()
+  INCLUDE_DIRECTORIES(${CMAKE_SOURCE_DIR}/storage/spider/hs_client)
+
+  IF(DEB)
+    SET(extra_options COMPONENT spider-engine)
+  ELSE()
+    SET(extra_options CONFIG spider.cnf)
+  ENDIF()
+
+  MYSQL_ADD_PLUGIN(spider ${SPIDER_SOURCES} ${extra_options}
+    STORAGE_ENGINE MODULE_ONLY)
+  IF(NOT TARGET spider)
+    RETURN()
+  ENDIF()
+ENDIF()
+
+IF(ORACLE_INCLUDE_DIR AND ORACLE_OCI_LIBRARY)
+  SET(SPIDER_WITH_ORACLE_OCI OFF CACHE BOOL "Spider is compiled with Oracle OCI library.")
+  IF(SPIDER_WITH_ORACLE_OCI)
+    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DHAVE_ORACLE_OCI -DLINUX -D_GNU_SOURCE -D_REENTRANT")
+    SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DHAVE_ORACLE_OCI -DLINUX -D_GNU_SOURCE -D_REENTRANT")
+    INCLUDE_DIRECTORIES(${ORACLE_INCLUDE_DIR})
+    TARGET_LINK_LIBRARIES (spider ${ORACLE_OCI_LIBRARY})
+  ENDIF()
+ENDIF()
+
+IF(MSVC)
+  IF (CMAKE_BUILD_TYPE STREQUAL "Debug")
+    ADD_CUSTOM_COMMAND(TARGET spider
+                       POST_BUILD
+                       COMMAND if not exist ..\\..\\sql\\lib mkdir ..\\..\\sql\\lib\\plugin
+                       COMMAND copy Debug\\ha_spider.dll ..\\..\\sql\\lib\\plugin\\ha_spider.dll)
+  ENDIF()
+ENDIF()
diff --git a/storage/spider/Makefile.am b/storage/spider/Makefile.am
new file mode 100644
index 00000000..3847b3f2
--- /dev/null
+++ b/storage/spider/Makefile.am
@@ -0,0 +1,89 @@
+HAVE_HANDLERSOCKET = "-DHAVE_HANDLERSOCKET"
+
+pkgplugindir   = $(pkglibdir)/plugin
+INCLUDES       = -I$(SPD_MYSQL_INC)$(top_srcdir)/include \
+                 -I$(SPD_MYSQL_INC)$(top_srcdir)/regex \
+                 -I$(SPD_MYSQL_INC)$(top_srcdir)/sql \
+                 -I$(SPD_MYSQL_INC)$(top_srcdir)/extra/yassl/include \
+                 -I./hs_client \
+                 $(MYSQL_INCLUDE_PATH) \
+                 $(HANDLERSOCKET_INCLUDE_PATH)
+
+noinst_HEADERS = ha_spider.h spd_conn.h spd_db_conn.h \
+                 spd_db_include.h spd_err.h spd_sys_table.h \
+                 spd_table.h spd_trx.h spd_include.h spd_param.h \
+                 spd_direct_sql.h spd_udf.h spd_ping_table.h \
+                 spd_copy_tables.h spd_malloc.h \
+                 spd_db_mysql.h spd_db_handlersocket.h \
+                 hs_client/allocator.hpp hs_client/config.hpp \
+                 hs_client/mutex.hpp hs_client/string_util.hpp \
+                 hs_client/auto_addrinfo.hpp hs_client/escape.hpp \
+                 hs_client/socket.hpp hs_client/thread.hpp \
+                 hs_client/auto_file.hpp hs_client/fatal.hpp \
+                 hs_client/string_buffer.hpp hs_client/util.hpp \
+                 hs_client/auto_ptrcontainer.hpp \
+                 hs_client/hstcpcli.hpp hs_client/string_ref.hpp \
+                 hs_client/hs_compat.h
+
+lib_LTLIBRARIES       = $(PLUGIN_SPIDER_LTLIBRARIES_TARGET)
+EXTRA_LTLIBRARIES     = ha_spider.la
+pkgplugin_LTLIBRARIES = @plugin_spider_shared_target@
+ha_spider_la_LDFLAGS  = -shared -module -rpath $(pkgplugindir)
+ha_spider_la_CXXFLAGS = $(AM_CXXFLAGS) -DMYSQL_DYNAMIC_PLUGIN \
+                        $(HAVE_HANDLERSOCKET)
+ha_spider_la_CFLAGS   = $(AM_CFLAGS) -DMYSQL_DYNAMIC_PLUGIN \
+                        $(HAVE_HANDLERSOCKET)
+ha_spider_la_SOURCES  = \
+                   spd_param.cc \
+                   spd_sys_table.cc \
+                   spd_trx.cc \
+                   spd_db_conn.cc \
+                   spd_conn.cc \
+                   spd_table.cc \
+                   spd_direct_sql.cc \
+                   spd_udf.cc \
+                   spd_ping_table.cc \
+                   spd_copy_tables.cc \
+                   spd_i_s.cc \
+                   spd_malloc.cc \
+                   ha_spider.cc \
+                   spd_db_mysql.cc \
+                   spd_db_handlersocket.cc \
+                   hs_client/config.cpp \
+                   hs_client/escape.cpp \
+                   hs_client/fatal.cpp \
+                   hs_client/hstcpcli.cpp \
+                   hs_client/socket.cpp \
+                   hs_client/string_util.cpp
+
+lib_LIBRARIES        = $(PLUGIN_SPIDER_LIBRARIES_TARGET)
+EXTRA_LIBRARIES      = libspider.a
+noinst_LIBRARIES     = @plugin_spider_static_target@
+libspider_a_CXXFLAGS = $(AM_CXXFLAGS) $(HAVE_HANDLERSOCKET)
+libspider_a_CFLAGS   = $(AM_CFLAGS) $(HAVE_HANDLERSOCKET)
+libspider_a_SOURCES  = \
+                   spd_param.cc \
+                   spd_sys_table.cc \
+                   spd_trx.cc \
+                   spd_db_conn.cc \
+                   spd_conn.cc \
+                   spd_table.cc \
+                   spd_direct_sql.cc \
+                   spd_udf.cc \
+                   spd_ping_table.cc \
+                   spd_copy_tables.cc \
+                   spd_i_s.cc \
+                   spd_malloc.cc \
+                   ha_spider.cc \
+                   spd_db_mysql.cc \
+                   spd_db_handlersocket.cc \
+                   hs_client/config.cpp \
+                   hs_client/escape.cpp \
+                   hs_client/fatal.cpp \
+                   hs_client/hstcpcli.cpp \
+                   hs_client/socket.cpp \
+                   hs_client/string_util.cpp
+
+EXTRA_DIST = plug.in
+# Don't update the files from bitkeeper
+%::SCCS/s.%
diff --git a/storage/spider/configure.in b/storage/spider/configure.in
new file mode 100644
index 00000000..6f103aed
--- /dev/null
+++ b/storage/spider/configure.in
@@ -0,0 +1,95 @@
+AC_INIT([spider_engine], [1.0], [kentokushiba@gmail.com])
+AC_CONFIG_HEADERS([config.h])
+AM_INIT_AUTOMAKE
+
+AC_PROG_CC
+AC_PROG_CXX
+AC_PROG_LIBTOOL
+
+AC_TYPE_SIZE_T
+
+AC_DEFUN([MYSQL_PATH_TEST],[
+  AC_MSG_CHECKING([mysql source path])
+  AC_ARG_WITH([mysql],
+    [AS_HELP_STRING([--with-mysql=PATH],[mysql source directory PATH])],
+    [
+      if test \
+        -f $withval/include/mysql/plugin.h -a \
+        -f $withval/include/mysql.h -a \
+        -f $withval/include/errmsg.h -a \
+        \( -f $withval/sql/mysql_priv.h -o -f $withval/sql/sql_priv.h \) ;
+      then
+        SPD_MYSQL_INC="$withval/"
+        AC_MSG_RESULT([yes])
+        plugin_spider_shared_target=""
+        AC_SUBST(plugin_spider_shared_target)
+        plugin_spider_static_target=""
+        AC_SUBST(plugin_spider_static_target)
+        PLUGIN_SPIDER_LTLIBRARIES_TARGET="ha_spider.la"
+        AC_SUBST(PLUGIN_SPIDER_LTLIBRARIES_TARGET)
+        PLUGIN_SPIDER_LIBRARIES_TARGET="libspider.a"
+        AC_SUBST(PLUGIN_SPIDER_LIBRARIES_TARGET)
+        LIBTOOL="$LIBTOOL --preserve-dup-deps"
+        AC_SUBST(LIBTOOL)
+      else
+        AC_MSG_ERROR([Can't find header files. Please check --with-mysql=PATH option])
+      fi
+    ],
+    [
+      if test \
+        -f ../../include/mysql/plugin.h -a \
+        -f ../../include/mysql.h -a \
+        -f ../../include/errmsg.h -a \
+        \( -f ../../sql/mysql_priv.h -o ../../sql/sql_priv.h \) ;
+      then
+        SPD_MYSQL_INC="../../"
+        AC_MSG_RESULT([no])
+      else
+        AC_MSG_ERROR([Can't find header files. Please set --with-mysql=PATH option])
+      fi
+    ]
+  )
+])
+
+MYSQL_PATH_TEST
+AC_SUBST(SPD_MYSQL_INC)
+
+AC_DEFUN([MYSQL_INCLUDE_PATH_TEST],[
+  AC_MSG_CHECKING([mysql include path])
+  AC_ARG_WITH([mysql-include],
+    [AS_HELP_STRING([--with-mysql-include=PATH],[mysql include directory PATH])],
+    [
+      if test \
+        -f $withval/mysql_version.h -a \
+        -f $withval/my_config.h ;
+      then
+        MYSQL_INCLUDE_PATH="-I $withval/"
+        AC_MSG_RESULT([yes])
+      else
+        AC_MSG_ERROR([Can't find "my_config.h". Please check --with-mysql-include=PATH option])
+      fi
+    ],
+    [
+      if test \
+        -f ../../include/mysql_version.h -a \
+        -f ../../include/my_config.h ;
+      then
+        MYSQL_INCLUDE_PATH="-I ../../include/"
+        AC_MSG_RESULT([no])
+      else
+        AC_MSG_ERROR([Can't find "my_config.h". Please set --with-mysql-include=PATH option])
+      fi
+    ]
+  )
+])
+
+MYSQL_INCLUDE_PATH_TEST
+AC_SUBST(MYSQL_INCLUDE_PATH)
+
+CXXFLAGS="$CXXFLAGS -fno-implicit-templates -fno-exceptions -fno-rtti"
+
+
+AC_CHECK_FUNCS([memset strchr strncasecmp])
+
+AC_CONFIG_FILES([Makefile])
+AC_OUTPUT
diff --git a/storage/spider/ha_spider.cc b/storage/spider/ha_spider.cc
new file mode 100644
index 00000000..6cee49cd
--- /dev/null
+++ b/storage/spider/ha_spider.cc
@@ -0,0 +1,16784 @@
+/* Copyright (C) 2008-2019 Kentoku Shiba
+   Copyright (C) 2019 MariaDB corp
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+#ifdef USE_PRAGMA_IMPLEMENTATION
+#pragma implementation
+#endif
+
+#define MYSQL_SERVER 1
+#include <my_global.h>
+#include "mysql_version.h"
+#include "spd_environ.h"
+#if MYSQL_VERSION_ID < 50500
+#include "mysql_priv.h"
+#include <mysql/plugin.h>
+#else
+#include "sql_priv.h"
+#include "probes_mysql.h"
+#include "sql_class.h"
+#include "key.h"
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+#include "sql_select.h"
+#endif
+#endif
+#include "ha_partition.h"
+#include "spd_param.h"
+#include "spd_err.h"
+#include "spd_db_include.h"
+#include "spd_include.h"
+#include "ha_spider.h"
+#include "spd_table.h"
+#include "spd_sys_table.h"
+#include "spd_trx.h"
+#include "spd_conn.h"
+#include "spd_db_conn.h"
+#include "spd_ping_table.h"
+#include "spd_malloc.h"
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100002
+#define SPIDER_CAN_BG_SEARCH (1LL << 37)
+#define SPIDER_CAN_BG_INSERT (1LL << 38)
+#define SPIDER_CAN_BG_UPDATE (1LL << 39)
+#else
+#define SPIDER_CAN_BG_SEARCH (LL(1) << 37)
+#define SPIDER_CAN_BG_INSERT (LL(1) << 38)
+#define SPIDER_CAN_BG_UPDATE (LL(1) << 39)
+#endif
+
+extern handlerton *spider_hton_ptr;
+extern SPIDER_DBTON spider_dbton[SPIDER_DBTON_SIZE];
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+extern HASH spider_open_tables;
+#endif
+extern pthread_mutex_t spider_lgtm_tblhnd_share_mutex;
+
+/* UTC time zone for timestamp columns */
+extern Time_zone *UTC;
+
+ha_spider::ha_spider(
+) : handler(spider_hton_ptr, NULL)
+{
+  DBUG_ENTER("ha_spider::ha_spider");
+  DBUG_PRINT("info",("spider this=%p", this));
+  spider_alloc_calc_mem_init(mem_calc, 139);
+  spider_alloc_calc_mem(spider_current_trx, mem_calc, sizeof(*this));
+  share = NULL;
+  conns = NULL;
+  need_mons = NULL;
+  blob_buff = NULL;
+  conn_keys = NULL;
+  spider_thread_id = 0;
+  trx_conn_adjustment = 0;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  trx_hs_r_conn_adjustment = 0;
+  trx_hs_w_conn_adjustment = 0;
+#endif
+  search_link_query_id = 0;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  partition_handler_share = NULL;
+  pt_handler_share_owner = FALSE;
+#endif
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+  multi_range_keys = NULL;
+  mrr_key_buff = NULL;
+#endif
+  append_tblnm_alias = NULL;
+  use_index_merge = FALSE;
+  is_clone = FALSE;
+  pt_clone_source_handler = NULL;
+  pt_clone_last_searcher = NULL;
+  ft_handler = NULL;
+  ft_first = NULL;
+  ft_current = NULL;
+  ft_count = 0;
+  ft_init_without_index_init = FALSE;
+  sql_kinds = 0;
+  error_mode = 0;
+  use_spatial_index = FALSE;
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+  use_fields = FALSE;
+#endif
+  dml_inited = FALSE;
+  use_pre_call = FALSE;
+  use_pre_action = FALSE;
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  do_direct_update = FALSE;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  hs_pushed_ret_fields_num = MAX_FIELDS;
+  hs_pushed_ret_fields = NULL;
+  hs_pushed_ret_fields_size = 0;
+  hs_increment = FALSE;
+  hs_decrement = FALSE;
+  hs_pushed_strref_num = 0;
+#endif
+#endif
+#ifdef HA_CAN_BULK_ACCESS
+  is_bulk_access_clone = FALSE;
+  synced_from_clone_source = FALSE;
+  bulk_access_started = FALSE;
+  bulk_access_executing = FALSE;
+  bulk_access_pre_called = FALSE;
+  bulk_access_link_first = NULL;
+/*
+  init_ha_mem_root = FALSE;
+*/
+#endif
+  prev_index_rnd_init = SPD_NONE;
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  direct_aggregate_item_first = NULL;
+#endif
+  result_link_idx = 0;
+  result_list.have_sql_kind_backup = FALSE;
+  result_list.sqls = NULL;
+  result_list.insert_sqls = NULL;
+  result_list.update_sqls = NULL;
+  result_list.tmp_sqls = NULL;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  result_list.hs_result_buf = NULL;
+#endif
+  result_list.tmp_tables_created = FALSE;
+  result_list.bgs_working = FALSE;
+  result_list.direct_order_limit = FALSE;
+  result_list.direct_limit_offset = FALSE;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  result_list.hs_has_result = FALSE;
+#endif
+  result_list.set_split_read = FALSE;
+  result_list.insert_dup_update_pushdown = FALSE;
+  result_list.tmp_pos_row_first = NULL;
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  result_list.direct_aggregate = FALSE;
+  result_list.snap_direct_aggregate = FALSE;
+#endif
+  result_list.direct_distinct = FALSE;
+  result_list.casual_read = NULL;
+  result_list.use_both_key = FALSE;
+  result_list.in_cmp_ref = FALSE;
+  DBUG_VOID_RETURN;
+}
+
+ha_spider::ha_spider(
+  handlerton *hton,
+  TABLE_SHARE *table_arg
+) : handler(hton, table_arg)
+{
+  DBUG_ENTER("ha_spider::ha_spider");
+  DBUG_PRINT("info",("spider this=%p", this));
+  spider_alloc_calc_mem_init(mem_calc, 0);
+  spider_alloc_calc_mem(spider_current_trx, mem_calc, sizeof(*this));
+  share = NULL;
+  conns = NULL;
+  need_mons = NULL;
+  blob_buff = NULL;
+  conn_keys = NULL;
+  spider_thread_id = 0;
+  trx_conn_adjustment = 0;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  trx_hs_r_conn_adjustment = 0;
+  trx_hs_w_conn_adjustment = 0;
+#endif
+  search_link_query_id = 0;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  partition_handler_share = NULL;
+  pt_handler_share_owner = FALSE;
+#endif
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+  multi_range_keys = NULL;
+  mrr_key_buff = NULL;
+#endif
+  append_tblnm_alias = NULL;
+  use_index_merge = FALSE;
+  is_clone = FALSE;
+  pt_clone_source_handler = NULL;
+  pt_clone_last_searcher = NULL;
+  ft_handler = NULL;
+  ft_first = NULL;
+  ft_current = NULL;
+  ft_count = 0;
+  ft_init_without_index_init = FALSE;
+  sql_kinds = 0;
+  error_mode = 0;
+  use_spatial_index = FALSE;
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+  use_fields = FALSE;
+#endif
+  dml_inited = FALSE;
+  use_pre_call = FALSE;
+  use_pre_action = FALSE;
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  do_direct_update = FALSE;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  hs_pushed_ret_fields_num = MAX_FIELDS;
+  hs_pushed_ret_fields = NULL;
+  hs_pushed_ret_fields_size = 0;
+  hs_increment = FALSE;
+  hs_decrement = FALSE;
+  hs_pushed_strref_num = 0;
+#endif
+#endif
+#ifdef HA_CAN_BULK_ACCESS
+  is_bulk_access_clone = FALSE;
+  synced_from_clone_source = FALSE;
+  bulk_access_started = FALSE;
+  bulk_access_executing = FALSE;
+  bulk_access_pre_called = FALSE;
+  bulk_access_link_first = NULL;
+/*
+  init_ha_mem_root = FALSE;
+*/
+#endif
+  prev_index_rnd_init = SPD_NONE;
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  direct_aggregate_item_first = NULL;
+#endif
+  result_link_idx = 0;
+  result_list.have_sql_kind_backup = FALSE;
+  result_list.sqls = NULL;
+  result_list.insert_sqls = NULL;
+  result_list.update_sqls = NULL;
+  result_list.tmp_sqls = NULL;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  result_list.hs_result_buf = NULL;
+#endif
+  result_list.tmp_tables_created = FALSE;
+  result_list.bgs_working = FALSE;
+  result_list.direct_order_limit = FALSE;
+  result_list.direct_limit_offset = FALSE;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  result_list.hs_has_result = FALSE;
+#endif
+  result_list.set_split_read = FALSE;
+  result_list.insert_dup_update_pushdown = FALSE;
+  result_list.tmp_pos_row_first = NULL;
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  result_list.direct_aggregate = FALSE;
+  result_list.snap_direct_aggregate = FALSE;
+#endif
+  result_list.direct_distinct = FALSE;
+  result_list.casual_read = NULL;
+  result_list.use_both_key = FALSE;
+  result_list.in_cmp_ref = FALSE;
+  ref_length = sizeof(SPIDER_POSITION);
+  DBUG_VOID_RETURN;
+}
+
+ha_spider::~ha_spider()
+{
+  DBUG_ENTER("ha_spider::~ha_spider");
+  DBUG_PRINT("info",("spider this=%p", this));
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  if (pt_handler_share_owner)
+  {
+    spider_free(spider_current_trx, partition_handler_share, MYF(0));
+    pt_handler_share_owner = FALSE;
+  }
+  partition_handler_share = NULL;
+#endif
+  if (wide_handler_owner)
+  {
+    spider_free(spider_current_trx, wide_handler, MYF(0));
+  }
+  wide_handler = NULL;
+  spider_free_mem_calc(spider_current_trx, mem_calc_id, sizeof(*this));
+  DBUG_VOID_RETURN;
+}
+
+handler *ha_spider::clone(
+  const char *name,
+  MEM_ROOT *mem_root
+) {
+  ha_spider *spider;
+  DBUG_ENTER("ha_spider::clone");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (
+    !(spider = (ha_spider *)
+      get_new_handler(table->s, mem_root, spider_hton_ptr)) ||
+    !(spider->ref = (uchar*) alloc_root(mem_root, ALIGN_SIZE(ref_length) * 2))
+  )
+    DBUG_RETURN(NULL);
+  spider->is_clone = TRUE;
+  spider->pt_clone_source_handler = this;
+  if (spider->ha_open(table, name, table->db_stat,
+    HA_OPEN_IGNORE_IF_LOCKED))
+    DBUG_RETURN(NULL);
+  spider->sync_from_clone_source_base(this);
+  use_index_merge = TRUE;
+
+  DBUG_RETURN((handler *) spider);
+}
+
+static const char *ha_spider_exts[] = {
+  NullS
+};
+
+const char **ha_spider::bas_ext() const
+{
+  return ha_spider_exts;
+}
+
+int ha_spider::open(
+  const char* name,
+  int mode,
+  uint test_if_locked
+) {
+  THD *thd = ha_thd();
+  int error_num, roop_count;
+  int init_sql_alloc_size;
+  ha_spider *spider, *owner;
+  bool wide_handler_alloc = FALSE;
+  SPIDER_WIDE_SHARE *wide_share;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  uint part_num;
+  bool pt_handler_share_alloc = FALSE;
+  bool pt_handler_mutex = FALSE;
+  ha_spider **pt_handler_share_handlers = NULL;
+  ha_partition *clone_source;
+  ha_spider *pt_handler_share_key;
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  my_hash_value_type hash_value;
+#endif
+#endif
+  DBUG_ENTER("ha_spider::open");
+  DBUG_PRINT("info",("spider this=%p", this));
+
+  dup_key_idx = (uint) -1;
+  conn_kinds = SPIDER_CONN_KIND_MYSQL;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  table->file->get_no_parts("", &part_num);
+  if (part_num)
+  {
+    pt_handler_share_handlers =
+      (ha_spider **) ((ha_partition *) table->file)->get_child_handlers();
+    spider = pt_handler_share_handlers[0];
+    owner = pt_handler_share_handlers[part_num - 1];
+    clone_source = ((ha_partition *) table->file)->get_clone_source();
+    if (clone_source)
+    {
+      pt_handler_share_key = (ha_spider *)
+        clone_source->get_child_handlers()[0];
+      is_clone = TRUE;
+    } else {
+      pt_handler_share_key = spider;
+    }
+  } else {
+#endif
+    spider = this;
+    owner = this;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+    clone_source = NULL;
+    pt_handler_share_key = this;
+  }
+#endif
+  if (!spider->wide_handler)
+  {
+    uchar *searched_bitmap;
+    uchar *ft_discard_bitmap;
+    uchar *position_bitmap;
+    uchar *idx_read_bitmap;
+    uchar *idx_write_bitmap;
+    uchar *rnd_read_bitmap;
+    uchar *rnd_write_bitmap;
+    if (!(wide_handler = (SPIDER_WIDE_HANDLER *)
+      spider_bulk_malloc(spider_current_trx, 16, MYF(MY_WME | MY_ZEROFILL),
+        &wide_handler, sizeof(SPIDER_WIDE_HANDLER),
+        &searched_bitmap,
+          (uint) sizeof(uchar) * no_bytes_in_map(table->read_set),
+        &ft_discard_bitmap,
+          (uint) sizeof(uchar) * no_bytes_in_map(table->read_set),
+        &position_bitmap,
+          (uint) sizeof(uchar) * no_bytes_in_map(table->read_set),
+        &idx_read_bitmap,
+          (uint) sizeof(uchar) * no_bytes_in_map(table->read_set),
+        &idx_write_bitmap,
+          (uint) sizeof(uchar) * no_bytes_in_map(table->read_set),
+        &rnd_read_bitmap,
+          (uint) sizeof(uchar) * no_bytes_in_map(table->read_set),
+        &rnd_write_bitmap,
+          (uint) sizeof(uchar) * no_bytes_in_map(table->read_set),
+        NullS))
+    ) {
+      error_num = HA_ERR_OUT_OF_MEM;
+      goto error_wide_handler_alloc;
+    }
+    spider->wide_handler = wide_handler;
+    owner->wide_handler = wide_handler;
+    wide_handler->searched_bitmap = searched_bitmap;
+    wide_handler->ft_discard_bitmap = ft_discard_bitmap;
+    wide_handler->position_bitmap = position_bitmap;
+    wide_handler->idx_read_bitmap = idx_read_bitmap;
+    wide_handler->idx_write_bitmap = idx_write_bitmap;
+    wide_handler->rnd_read_bitmap = rnd_read_bitmap;
+    wide_handler->rnd_write_bitmap = rnd_write_bitmap;
+    wide_handler->owner = owner;
+    if (table_share->tmp_table == NO_TMP_TABLE)
+      wide_handler->top_share = table->s;
+    owner->wide_handler_owner = TRUE;
+    memset(wide_handler->ft_discard_bitmap, 0xFF,
+      no_bytes_in_map(table->read_set));
+    memset(wide_handler->searched_bitmap, 0,
+      no_bytes_in_map(table->read_set));
+    wide_handler_alloc = TRUE;
+  } else {
+    wide_handler = spider->wide_handler;
+  }
+  if (!share && !spider_get_share(name, table, thd, this, &error_num))
+    goto error_get_share;
+
+  wide_share = share->wide_share;
+  if (wide_handler_alloc)
+  {
+    thr_lock_data_init(&wide_share->lock, &wide_handler->lock, NULL);
+  }
+
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  if (!wide_handler->partition_handler_share)
+  {
+    pt_handler_mutex = TRUE;
+    pthread_mutex_lock(&wide_share->pt_handler_mutex);
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+    hash_value = my_calc_hash(&wide_share->pt_handler_hash,
+      (uchar*) pt_handler_share_key, sizeof(ha_spider *));
+    if (!(partition_handler_share = (SPIDER_PARTITION_HANDLER_SHARE*)
+      my_hash_search_using_hash_value(&wide_share->pt_handler_hash,
+      hash_value, (uchar*) pt_handler_share_key, sizeof(ha_spider *))))
+#else
+    if (!(partition_handler_share = (SPIDER_PARTITION_HANDLER_SHARE*)
+      my_hash_search(&wide_share->pt_handler_hash,
+      (uchar*) pt_handler_share_key, sizeof(ha_spider *))))
+#endif
+    {
+      if (!(partition_handler_share = (SPIDER_PARTITION_HANDLER_SHARE *)
+        spider_bulk_malloc(spider_current_trx, 15, MYF(MY_WME | MY_ZEROFILL),
+          &partition_handler_share, sizeof(SPIDER_PARTITION_HANDLER_SHARE),
+          NullS))
+      ) {
+        error_num = HA_ERR_OUT_OF_MEM;
+        goto error_partition_handler_share_alloc;
+      }
+      DBUG_PRINT("info",("spider create partition_handler_share"));
+      DBUG_PRINT("info",("spider table=%p", table));
+      partition_handler_share->table = table;
+      partition_handler_share->table_hash_value = hash_value;
+      partition_handler_share->no_parts = part_num;
+      partition_handler_share->owner = owner;
+      partition_handler_share->parallel_search_query_id = 0;
+      spider->partition_handler_share = partition_handler_share;
+      owner->partition_handler_share = partition_handler_share;
+      owner->pt_handler_share_owner = TRUE;
+      partition_handler_share->handlers = pt_handler_share_handlers;
+      uint old_elements = wide_share->pt_handler_hash.array.max_element;
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+      if (my_hash_insert_with_hash_value(&wide_share->pt_handler_hash,
+        hash_value, (uchar*) partition_handler_share))
+#else
+      if (my_hash_insert(&wide_share->pt_handler_hash,
+        (uchar*) partition_handler_share))
+#endif
+      {
+        error_num = HA_ERR_OUT_OF_MEM;
+        goto error_hash_insert;
+      }
+      if (wide_share->pt_handler_hash.array.max_element > old_elements)
+      {
+        spider_alloc_calc_mem(spider_current_trx,
+          wide_share->pt_handler_hash,
+          (wide_share->pt_handler_hash.array.max_element -
+            old_elements) *
+          wide_share->pt_handler_hash.array.size_of_element);
+      }
+    }
+    pthread_mutex_unlock(&wide_share->pt_handler_mutex);
+    pt_handler_mutex = FALSE;
+    pt_handler_share_alloc = TRUE;
+  } else {
+    partition_handler_share = wide_handler->partition_handler_share;
+  }
+#endif
+  init_sql_alloc_size =
+    spider_param_init_sql_alloc_size(thd, share->init_sql_alloc_size);
+
+  result_list.table = table;
+  result_list.first = NULL;
+  result_list.last = NULL;
+  result_list.current = NULL;
+  result_list.record_num = 0;
+  if (
+    !(result_list.sqls = new spider_string[share->link_count]) ||
+    !(result_list.insert_sqls = new spider_string[share->link_count]) ||
+    !(result_list.update_sqls = new spider_string[share->link_count]) ||
+    !(result_list.tmp_sqls = new spider_string[share->link_count])
+  ) {
+    error_num = HA_ERR_OUT_OF_MEM;
+    goto error_init_result_list;
+  }
+  for (roop_count = 0; roop_count < (int) share->link_count; roop_count++)
+  {
+    result_list.sqls[roop_count].init_calc_mem(80);
+    result_list.insert_sqls[roop_count].init_calc_mem(81);
+    result_list.update_sqls[roop_count].init_calc_mem(82);
+    result_list.tmp_sqls[roop_count].init_calc_mem(83);
+    uint all_link_idx = conn_link_idx[roop_count];
+    uint dbton_id = share->sql_dbton_ids[all_link_idx];
+    if (share->dbton_share[dbton_id]->need_change_db_table_name())
+    {
+      if (
+        result_list.sqls[roop_count].real_alloc(init_sql_alloc_size) ||
+        result_list.insert_sqls[roop_count].real_alloc(init_sql_alloc_size) ||
+        result_list.update_sqls[roop_count].real_alloc(init_sql_alloc_size) ||
+        result_list.tmp_sqls[roop_count].real_alloc(init_sql_alloc_size)
+      ) {
+        error_num = HA_ERR_OUT_OF_MEM;
+        goto error_init_result_list;
+      }
+    }
+    result_list.sqls[roop_count].set_charset(share->access_charset);
+    result_list.insert_sqls[roop_count].set_charset(share->access_charset);
+    result_list.update_sqls[roop_count].set_charset(share->access_charset);
+    result_list.tmp_sqls[roop_count].set_charset(share->access_charset);
+  }
+
+  DBUG_PRINT("info",("spider blob_fields=%d", table_share->blob_fields));
+  if (table_share->blob_fields)
+  {
+    if (!(blob_buff = new spider_string[table_share->fields]))
+    {
+      error_num = HA_ERR_OUT_OF_MEM;
+      goto error_init_blob_buff;
+    }
+    for (roop_count = 0; roop_count < (int) table_share->fields; roop_count++)
+    {
+      blob_buff[roop_count].init_calc_mem(84);
+      blob_buff[roop_count].set_charset(table->field[roop_count]->charset());
+    }
+  }
+
+  if (is_clone)
+  {
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+    if (part_num)
+    {
+      for (roop_count = 0; roop_count < (int) part_num; roop_count++)
+      {
+        if (partition_handler_share->handlers[roop_count]->share == share)
+        {
+          pt_clone_source_handler =
+            partition_handler_share->handlers[roop_count];
+          break;
+        }
+      }
+    }
+#endif
+
+    wide_handler->external_lock_type =
+      pt_clone_source_handler->wide_handler->external_lock_type;
+
+    if (wide_handler_alloc)
+    {
+      wide_handler->lock_mode =
+        pt_clone_source_handler->wide_handler->lock_mode;
+      if (!partition_handler_share->clone_bitmap_init)
+      {
+        pt_clone_source_handler->set_select_column_mode();
+        partition_handler_share->clone_bitmap_init = TRUE;
+      }
+      set_clone_searched_bitmap();
+      wide_handler->position_bitmap_init = FALSE;
+      wide_handler->sql_command =
+        pt_clone_source_handler->wide_handler->sql_command;
+    }
+  } else {
+    if (share->semi_table_lock)
+    {
+      wide_handler->semi_table_lock = TRUE;
+    }
+  }
+#ifdef HA_CAN_BULK_ACCESS
+  external_lock_cnt = 0;
+#endif
+
+  if (reset())
+  {
+    error_num = HA_ERR_OUT_OF_MEM;
+    goto error_reset;
+  }
+
+  DBUG_RETURN(0);
+
+error_reset:
+  delete [] blob_buff;
+  blob_buff = NULL;
+error_init_blob_buff:
+error_init_result_list:
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+error_hash_insert:
+  if (pt_handler_share_alloc)
+  {
+    wide_share = share->wide_share;
+    if (!pt_handler_mutex)
+      pthread_mutex_lock(&wide_share->pt_handler_mutex);
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+    my_hash_delete_with_hash_value(&wide_share->pt_handler_hash,
+      partition_handler_share->table_hash_value,
+      (uchar*) partition_handler_share);
+#else
+    my_hash_delete(&wide_share->pt_handler_hash,
+      (uchar*) partition_handler_share);
+#endif
+    pthread_mutex_unlock(&wide_share->pt_handler_mutex);
+    pt_handler_mutex = FALSE;
+    spider_free(spider_current_trx, partition_handler_share, MYF(0));
+    spider->partition_handler_share = NULL;
+    owner->partition_handler_share = NULL;
+    owner->pt_handler_share_owner = FALSE;
+  }
+error_partition_handler_share_alloc:
+  if (pt_handler_mutex)
+    pthread_mutex_unlock(&wide_share->pt_handler_mutex);
+  partition_handler_share = NULL;
+#endif
+  spider_free_share(share);
+  share = NULL;
+  if (conn_keys)
+  {
+    spider_free(spider_current_trx, conn_keys, MYF(0));
+    conn_keys = NULL;
+  }
+error_get_share:
+  if (wide_handler_alloc)
+  {
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+    if (pt_handler_share_handlers)
+    {
+      pt_handler_share_handlers[0]->wide_handler = NULL;
+    }
+#endif
+    spider_free(spider_current_trx, wide_handler, MYF(0));
+    spider->wide_handler = NULL;
+    owner->wide_handler = NULL;
+    owner->wide_handler_owner = FALSE;
+  }
+  wide_handler = NULL;
+error_wide_handler_alloc:
+  DBUG_RETURN(error_num);
+}
+
+int ha_spider::close()
+{
+  int error_num = 0, roop_count, error_num2;
+  THD *thd = ha_thd();
+  SPIDER_WIDE_SHARE *wide_share;
+  backup_error_status();
+  DBUG_ENTER("ha_spider::close");
+  DBUG_PRINT("info",("spider this=%p", this));
+
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+  if (multi_range_keys)
+  {
+    DBUG_PRINT("info",("spider free multi_range_keys=%p", multi_range_keys));
+    spider_free(spider_current_trx, multi_range_keys, MYF(0));
+    multi_range_keys = NULL;
+  }
+  if (mrr_key_buff)
+  {
+    delete [] mrr_key_buff;
+    mrr_key_buff = NULL;
+  }
+#endif
+#ifdef HA_CAN_BULK_ACCESS
+  if (bulk_access_link_first)
+  {
+    do {
+      DBUG_PRINT("info",("spider bulk_access_link->spider=%p",
+        bulk_access_link_first->spider));
+      DBUG_PRINT("info",("spider bulk_access_link->spider->dbton_handler=%p",
+        bulk_access_link_first->spider->dbton_handler));
+      DBUG_PRINT("info",("spider ptr bulk_access_link->spider->dbton_handler="
+        "%p", &bulk_access_link_first->spider->dbton_handler));
+      bulk_access_link_current = bulk_access_link_first->next;
+      delete_bulk_access_link(bulk_access_link_first);
+      bulk_access_link_first = bulk_access_link_current;
+    } while (bulk_access_link_first);
+  }
+#endif
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  while (direct_aggregate_item_first)
+  {
+    direct_aggregate_item_current = direct_aggregate_item_first->next;
+    if (direct_aggregate_item_first->item)
+    {
+      delete direct_aggregate_item_first->item;
+    }
+    spider_free(spider_current_trx, direct_aggregate_item_first, MYF(0));
+    direct_aggregate_item_first = direct_aggregate_item_current;
+  }
+#endif
+  if (is_clone)
+  {
+    for (roop_count = 0; roop_count < (int) share->link_count; roop_count++)
+    {
+      if ((error_num2 = close_opened_handler(roop_count, FALSE)))
+      {
+        if (check_error_mode(error_num2))
+          error_num = error_num2;
+      }
+    }
+  }
+  for (roop_count = share->use_dbton_count - 1; roop_count >= 0; roop_count--)
+  {
+    uint dbton_id = share->use_dbton_ids[roop_count];
+    if (dbton_handler[dbton_id])
+    {
+      delete dbton_handler[dbton_id];
+      dbton_handler[dbton_id] = NULL;
+    }
+  }
+
+  if (!thd || !thd_get_ha_data(thd, spider_hton_ptr))
+  {
+    for (roop_count = 0; roop_count < (int) share->link_count; roop_count++)
+      conns[roop_count] = NULL;
+  }
+
+  if (ft_first)
+  {
+    st_spider_ft_info *tmp_ft_info;
+    do {
+      tmp_ft_info = ft_first->next;
+      spider_free(spider_current_trx, ft_first, MYF(0));
+      ft_first = tmp_ft_info;
+    } while (ft_first);
+  }
+
+  spider_db_free_result(this, TRUE);
+  if (conn_keys)
+  {
+    spider_free(spider_current_trx, conn_keys, MYF(0));
+    conn_keys = NULL;
+  }
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  if (pt_handler_share_owner)
+  {
+    wide_share = share->wide_share;
+    pthread_mutex_lock(&wide_share->pt_handler_mutex);
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+    my_hash_delete_with_hash_value(&wide_share->pt_handler_hash,
+      partition_handler_share->table_hash_value,
+      (uchar*) partition_handler_share);
+#else
+    my_hash_delete(&wide_share->pt_handler_hash,
+      (uchar*) partition_handler_share);
+#endif
+    pthread_mutex_unlock(&wide_share->pt_handler_mutex);
+    spider_free(spider_current_trx, partition_handler_share, MYF(0));
+    pt_handler_share_owner = FALSE;
+  }
+  partition_handler_share = NULL;
+#endif
+  if (wide_handler_owner)
+  {
+    spider_free(spider_current_trx, wide_handler, MYF(0));
+    wide_handler_owner = FALSE;
+  }
+  wide_handler = NULL;
+  if (blob_buff)
+  {
+    delete [] blob_buff;
+    blob_buff = NULL;
+  }
+  if (result_list.sqls)
+  {
+    delete [] result_list.sqls;
+    result_list.sqls = NULL;
+  }
+  if (result_list.insert_sqls)
+  {
+    delete [] result_list.insert_sqls;
+    result_list.insert_sqls = NULL;
+  }
+  if (result_list.update_sqls)
+  {
+    delete [] result_list.update_sqls;
+    result_list.update_sqls = NULL;
+  }
+  if (result_list.tmp_sqls)
+  {
+    delete [] result_list.tmp_sqls;
+    result_list.tmp_sqls = NULL;
+  }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (result_list.hs_result_buf)
+  {
+    delete result_list.hs_result_buf;
+    result_list.hs_result_buf = NULL;
+  }
+#endif
+
+  spider_free_share(share);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  if (hs_pushed_ret_fields)
+  {
+    spider_free(spider_current_trx, hs_pushed_ret_fields, MYF(0));
+    hs_pushed_ret_fields = NULL;
+    hs_pushed_ret_fields_size = 0;
+  }
+#endif
+#endif
+  is_clone = FALSE;
+  pt_clone_source_handler = NULL;
+  share = NULL;
+  conns = NULL;
+
+  DBUG_RETURN(error_num);
+}
+
+int ha_spider::check_access_kind_for_connection(
+  THD *thd,
+  bool write_request
+) {
+  int error_num, roop_count;
+  DBUG_ENTER("ha_spider::check_access_kind_for_connection");
+  DBUG_PRINT("info",("spider this=%p", this));
+  conn_kinds = 0;
+  switch (wide_handler->sql_command)
+  {
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    case SQLCOM_HS_READ:
+      for (roop_count = 0; roop_count < (int) share->link_count; roop_count++)
+      {
+        if (!write_request)
+        {
+          DBUG_PRINT("info",("spider spider_use_hs_read=%d",
+            spider_param_use_hs_read(thd, share->use_hs_reads[roop_count])));
+          DBUG_PRINT("info",("spider use_hs_reads[%d]=%ld", roop_count,
+            share->use_hs_reads[roop_count]));
+          if (spider_param_use_hs_read(thd, share->use_hs_reads[roop_count]))
+          {
+            DBUG_PRINT("info",("spider set %d to HS_READ", roop_count));
+            conn_kinds |= SPIDER_CONN_KIND_HS_READ;
+            conn_kind[roop_count] = SPIDER_CONN_KIND_HS_READ;
+          } else {
+            conn_kinds |= SPIDER_CONN_KIND_MYSQL;
+            conn_kind[roop_count] = SPIDER_CONN_KIND_MYSQL;
+          }
+        } else if (share->hs_write_to_reads[roop_count])
+        {
+          DBUG_PRINT("info",("spider spider_use_hs_write=%d",
+            spider_param_use_hs_write(thd, share->use_hs_writes[roop_count])));
+          DBUG_PRINT("info",("spider use_hs_write[%d]=%ld", roop_count,
+            share->use_hs_writes[roop_count]));
+          if (spider_param_use_hs_write(thd, share->use_hs_writes[roop_count]))
+          {
+            DBUG_PRINT("info",("spider set %d to HS_WRITE", roop_count));
+            conn_kinds |= SPIDER_CONN_KIND_HS_READ;
+            conn_kind[roop_count] = SPIDER_CONN_KIND_HS_READ;
+          } else {
+            conn_kinds |= SPIDER_CONN_KIND_MYSQL;
+            conn_kind[roop_count] = SPIDER_CONN_KIND_MYSQL;
+          }
+        } else {
+          DBUG_PRINT("info",("spider spider_use_hs_write=%d",
+            spider_param_use_hs_write(thd, share->use_hs_writes[roop_count])));
+          DBUG_PRINT("info",("spider use_hs_write[%d]=%ld", roop_count,
+            share->use_hs_writes[roop_count]));
+          if (spider_param_use_hs_write(thd, share->use_hs_writes[roop_count]))
+          {
+            DBUG_PRINT("info",("spider set %d to HS_WRITE", roop_count));
+            conn_kinds |= SPIDER_CONN_KIND_HS_WRITE;
+            conn_kind[roop_count] = SPIDER_CONN_KIND_HS_WRITE;
+          } else {
+            conn_kinds |= SPIDER_CONN_KIND_MYSQL;
+            conn_kind[roop_count] = SPIDER_CONN_KIND_MYSQL;
+          }
+        }
+      }
+      break;
+    case SQLCOM_HS_UPDATE:
+    case SQLCOM_HS_DELETE:
+      conn_kinds |= SPIDER_CONN_KIND_MYSQL;
+      for (roop_count = 0; roop_count < (int) share->link_count; roop_count++)
+      {
+        conn_kind[roop_count] = SPIDER_CONN_KIND_MYSQL;
+      }
+      break;
+    case SQLCOM_HS_INSERT:
+      for (roop_count = 0; roop_count < (int) share->link_count; roop_count++)
+      {
+        DBUG_PRINT("info",("spider spider_use_hs_write=%d",
+          spider_param_use_hs_write(thd, share->use_hs_writes[roop_count])));
+        DBUG_PRINT("info",("spider use_hs_write[%d]=%ld", roop_count,
+          share->use_hs_writes[roop_count]));
+        if (spider_param_use_hs_write(thd, share->use_hs_writes[roop_count]))
+        {
+          DBUG_PRINT("info",("spider set %d to HS_WRITE", roop_count));
+          conn_kinds |= SPIDER_CONN_KIND_HS_WRITE;
+          conn_kind[roop_count] = SPIDER_CONN_KIND_HS_WRITE;
+        } else {
+          conn_kinds |= SPIDER_CONN_KIND_MYSQL;
+          conn_kind[roop_count] = SPIDER_CONN_KIND_MYSQL;
+        }
+      }
+      break;
+#endif
+    case SQLCOM_UPDATE:
+    case SQLCOM_UPDATE_MULTI:
+    case SQLCOM_DELETE:
+    case SQLCOM_DELETE_MULTI:
+    default:
+      conn_kinds |= SPIDER_CONN_KIND_MYSQL;
+      for (roop_count = 0; roop_count < (int) share->link_count; roop_count++)
+      {
+        conn_kind[roop_count] = SPIDER_CONN_KIND_MYSQL;
+      }
+      break;
+  }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if ((error_num = reset_hs_strs_pos(SPIDER_SQL_TYPE_UPDATE_HS)))
+  {
+    DBUG_RETURN(error_num);
+  }
+#endif
+  if ((error_num = spider_check_trx_and_get_conn(thd, this, TRUE)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  DBUG_PRINT("info",("spider wide_handler->semi_trx_isolation_chk = %s",
+    wide_handler->semi_trx_isolation_chk ? "TRUE" : "FALSE"));
+  if (wide_handler->semi_trx_isolation_chk)
+  {
+    SPIDER_SET_CONNS_PARAM(semi_trx_isolation_chk, TRUE, conns,
+      share->link_statuses, conn_link_idx, (int) share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY);
+  }
+  DBUG_PRINT("info",("spider wide_handler->semi_trx_chk = %s",
+    wide_handler->semi_trx_chk ? "TRUE" : "FALSE"));
+  if (wide_handler->semi_trx_chk)
+  {
+    SPIDER_SET_CONNS_PARAM(semi_trx_chk, TRUE, conns, share->link_statuses,
+      conn_link_idx, (int) share->link_count, SPIDER_LINK_STATUS_RECOVERY);
+  } else {
+    SPIDER_SET_CONNS_PARAM(semi_trx_chk, FALSE, conns, share->link_statuses,
+      conn_link_idx, (int) share->link_count, SPIDER_LINK_STATUS_RECOVERY);
+  }
+  DBUG_RETURN(0);
+}
+
+void ha_spider::check_access_kind(
+  THD *thd
+) {
+  DBUG_ENTER("ha_spider::check_access_kind");
+  DBUG_PRINT("info",("spider this=%p", this));
+  wide_handler->sql_command = thd_sql_command(thd);
+  DBUG_PRINT("info",("spider sql_command=%u", wide_handler->sql_command));
+  DBUG_PRINT("info",("spider thd->query_id=%lld", thd->query_id));
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+#ifdef HS_HAS_SQLCOM
+  if (wide_handler->sql_command == SQLCOM_HS_UPDATE)
+    wide_handler->update_request = TRUE;
+  else
+#endif
+    wide_handler->update_request = FALSE;
+#else
+  if (
+#ifdef HS_HAS_SQLCOM
+    wide_handler->sql_command == SQLCOM_HS_UPDATE ||
+#endif
+    wide_handler->sql_command == SQLCOM_UPDATE ||
+    wide_handler->sql_command == SQLCOM_UPDATE_MULTI ||
+    /* for triggers */
+    wide_handler->sql_command == SQLCOM_INSERT ||
+    wide_handler->sql_command == SQLCOM_INSERT_SELECT ||
+    wide_handler->sql_command == SQLCOM_DELETE ||
+    wide_handler->sql_command == SQLCOM_DELETE_MULTI
+  )
+    wide_handler->update_request = TRUE;
+  else
+    wide_handler->update_request = FALSE;
+#endif
+  DBUG_VOID_RETURN;
+}
+
+#ifdef HA_CAN_BULK_ACCESS
+int ha_spider::additional_lock(
+  THD *thd,
+  enum thr_lock_type lock_type
+) {
+  DBUG_ENTER("ha_spider::additional_lock");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (bulk_access_executing)
+  {
+    if (is_bulk_access_clone)
+    {
+      check_access_kind(thd);
+      DBUG_RETURN(check_access_kind_for_connection(thd,
+        (lock_type >= TL_WRITE_ALLOW_WRITE)));
+    } else if (bulk_access_link_exec_tgt->called)
+    {
+      bulk_access_link_exec_tgt->spider->check_access_kind(thd);
+      DBUG_RETURN(bulk_access_link_exec_tgt->spider->
+        check_access_kind_for_connection(
+          thd, (lock_type >= TL_WRITE_ALLOW_WRITE)));
+    }
+  }
+  check_access_kind(thd);
+  DBUG_RETURN(check_access_kind_for_connection(thd,
+    (lock_type >= TL_WRITE_ALLOW_WRITE)));
+}
+#endif
+
+THR_LOCK_DATA **ha_spider::store_lock(
+  THD *thd,
+  THR_LOCK_DATA **to,
+  enum thr_lock_type lock_type
+) {
+  DBUG_ENTER("ha_spider::store_lock");
+  DBUG_PRINT("info",("spider this=%p", this));
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  if (
+    wide_handler->stage == SPD_HND_STAGE_STORE_LOCK &&
+    wide_handler->stage_executor != this)
+  {
+    DBUG_RETURN(to);
+  }
+  wide_handler->stage = SPD_HND_STAGE_STORE_LOCK;
+  wide_handler->stage_executor = this;
+#endif
+  wide_handler->lock_table_type = 0;
+  if (lock_type == TL_IGNORE)
+  {
+    *to++ = &wide_handler->lock;
+    DBUG_RETURN(to);
+  }
+  check_access_kind(thd);
+  DBUG_PRINT("info",("spider sql_command=%u", wide_handler->sql_command));
+  DBUG_PRINT("info",("spider lock_type=%d", lock_type));
+  DBUG_PRINT("info",("spider thd->query_id=%lld", thd->query_id));
+
+  wide_handler->lock_type = lock_type;
+  if (
+    wide_handler->sql_command != SQLCOM_DROP_TABLE &&
+    wide_handler->sql_command != SQLCOM_ALTER_TABLE
+  ) {
+    wide_handler->semi_trx_chk = FALSE;
+  }
+  switch (wide_handler->sql_command)
+  {
+    case SQLCOM_SELECT:
+    case SQLCOM_HA_READ:
+#ifdef HS_HAS_SQLCOM
+    case SQLCOM_HS_READ:
+#endif
+      if (lock_type == TL_READ_WITH_SHARED_LOCKS)
+        wide_handler->lock_mode = 1;
+      else if (lock_type <= TL_READ_NO_INSERT)
+      {
+        wide_handler->lock_mode = 0;
+        wide_handler->semi_trx_isolation_chk = TRUE;
+      } else
+        wide_handler->lock_mode = -1;
+      wide_handler->semi_trx_chk = TRUE;
+      break;
+    case SQLCOM_UPDATE:
+    case SQLCOM_UPDATE_MULTI:
+#ifdef HS_HAS_SQLCOM
+    case SQLCOM_HS_UPDATE:
+#endif
+    case SQLCOM_CREATE_TABLE:
+    case SQLCOM_INSERT:
+    case SQLCOM_INSERT_SELECT:
+    case SQLCOM_DELETE:
+    case SQLCOM_LOAD:
+    case SQLCOM_REPLACE:
+    case SQLCOM_REPLACE_SELECT:
+    case SQLCOM_DELETE_MULTI:
+#ifdef HS_HAS_SQLCOM
+    case SQLCOM_HS_INSERT:
+    case SQLCOM_HS_DELETE:
+#endif
+      if (lock_type >= TL_READ && lock_type <= TL_READ_NO_INSERT)
+      {
+        wide_handler->lock_mode = -2;
+        wide_handler->semi_trx_isolation_chk = TRUE;
+      } else
+        wide_handler->lock_mode = -1;
+      wide_handler->semi_trx_chk = TRUE;
+      break;
+    default:
+        wide_handler->lock_mode = -1;
+  }
+  switch (lock_type)
+  {
+    case TL_READ_HIGH_PRIORITY:
+      wide_handler->high_priority = TRUE;
+      break;
+    case TL_WRITE_DELAYED:
+      wide_handler->insert_delayed = TRUE;
+      break;
+    case TL_WRITE_LOW_PRIORITY:
+      wide_handler->low_priority = TRUE;
+      break;
+    default:
+      break;
+  }
+
+  if (wide_handler->lock_type != TL_IGNORE &&
+    wide_handler->lock.type == TL_UNLOCK)
+  {
+    if (
+      wide_handler->sql_command == SQLCOM_DROP_TABLE ||
+      wide_handler->sql_command == SQLCOM_ALTER_TABLE ||
+      wide_handler->sql_command == SQLCOM_SHOW_CREATE
+    ) {
+      if (
+        lock_type == TL_READ_NO_INSERT &&
+        !thd->in_lock_tables
+      )
+        lock_type = TL_READ;
+      if (
+        lock_type >= TL_WRITE_CONCURRENT_INSERT && lock_type <= TL_WRITE &&
+        !thd->in_lock_tables && !thd_tablespace_op(thd)
+      )
+        lock_type = TL_WRITE_ALLOW_WRITE;
+    } else if (
+      wide_handler->sql_command == SQLCOM_LOCK_TABLES ||
+      (spider_param_lock_exchange(thd) == 1 && wide_handler->semi_table_lock))
+    {
+      DBUG_PRINT("info",("spider lock exchange route"));
+      DBUG_PRINT("info",("spider lock_type=%u", wide_handler->lock_type));
+      if (
+        (
+          wide_handler->lock_type == TL_READ ||
+          wide_handler->lock_type == TL_READ_NO_INSERT ||
+          wide_handler->lock_type == TL_WRITE_LOW_PRIORITY ||
+          wide_handler->lock_type == TL_WRITE
+        ) &&
+        !spider_param_local_lock_table(thd)
+      ) {
+        wide_handler->lock_table_type = 1;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+        if (partition_handler_share && partition_handler_share->handlers)
+        {
+          uint roop_count;
+          for (roop_count = 0; roop_count < partition_handler_share->no_parts;
+            ++roop_count)
+          {
+            if (unlikely((store_error_num =
+              partition_handler_share->handlers[roop_count]->
+                append_lock_tables_list())))
+            {
+              break;
+            }
+          }
+        } else {
+#endif
+          store_error_num = append_lock_tables_list();
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+        }
+#endif
+      }
+    } else {
+      DBUG_PRINT("info",("spider default lock route"));
+      DBUG_PRINT("info",("spider lock_type=%u", wide_handler->lock_type));
+      if (
+        wide_handler->lock_type == TL_READ ||
+        wide_handler->lock_type == TL_READ_NO_INSERT ||
+        wide_handler->lock_type == TL_WRITE_LOW_PRIORITY ||
+        wide_handler->lock_type == TL_WRITE
+      ) {
+        if (
+          !spider_param_local_lock_table(thd) &&
+          spider_param_semi_table_lock(thd, wide_handler->semi_table_lock)
+        ) {
+          wide_handler->lock_table_type = 2;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+          if (partition_handler_share && partition_handler_share->handlers)
+          {
+            uint roop_count;
+            for (roop_count = 0;
+              roop_count < partition_handler_share->no_parts;
+              ++roop_count)
+            {
+              if (unlikely((store_error_num =
+                partition_handler_share->handlers[roop_count]->
+                  append_lock_tables_list())))
+              {
+                break;
+              }
+            }
+          } else {
+#endif
+            store_error_num = append_lock_tables_list();
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+          }
+#endif
+        }
+      }
+      if (
+        lock_type == TL_READ_NO_INSERT &&
+        !thd->in_lock_tables
+      )
+        lock_type = TL_READ;
+      if (
+        lock_type >= TL_WRITE_CONCURRENT_INSERT && lock_type <= TL_WRITE &&
+        lock_type != TL_WRITE_DELAYED &&
+        !thd->in_lock_tables && !thd_tablespace_op(thd)
+      )
+        lock_type = TL_WRITE_ALLOW_WRITE;
+    }
+    wide_handler->lock.type = lock_type;
+  }
+  *to++ = &wide_handler->lock;
+  DBUG_RETURN(to);
+}
+
+int ha_spider::external_lock(
+  THD *thd,
+  int lock_type
+) {
+  int error_num = 0;
+  SPIDER_TRX *trx;
+  backup_error_status();
+  DBUG_ENTER("ha_spider::external_lock");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider lock_type=%x", lock_type));
+#if MYSQL_VERSION_ID < 50500
+  DBUG_PRINT("info",("spider thd->options=%x", (int) thd->options));
+#endif
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  if (
+    wide_handler->stage == SPD_HND_STAGE_EXTERNAL_LOCK &&
+    wide_handler->stage_executor != this)
+  {
+    DBUG_RETURN(0);
+  }
+  wide_handler->stage = SPD_HND_STAGE_EXTERNAL_LOCK;
+  wide_handler->stage_executor = this;
+#endif
+#ifdef HANDLER_HAS_NEED_INFO_FOR_AUTO_INC
+  info_auto_called = FALSE;
+#endif
+
+  wide_handler->sql_command = thd_sql_command(thd);
+  if (wide_handler->sql_command == SQLCOM_BEGIN)
+    wide_handler->sql_command = SQLCOM_UNLOCK_TABLES;
+
+  trx = spider_get_trx(thd, TRUE, &error_num);
+  if (error_num)
+    DBUG_RETURN(error_num);
+  wide_handler->trx = trx;
+
+  DBUG_PRINT("info",("spider sql_command=%d", wide_handler->sql_command));
+#ifdef HA_CAN_BULK_ACCESS
+  wide_handler->external_lock_cnt++;
+#endif
+  if (
+    lock_type == F_UNLCK &&
+    wide_handler->sql_command != SQLCOM_UNLOCK_TABLES
+  )
+    DBUG_RETURN(0);
+  if (store_error_num)
+    DBUG_RETURN(store_error_num);
+  wide_handler->external_lock_type = lock_type;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if ((conn_kinds & SPIDER_CONN_KIND_MYSQL))
+  {
+#endif
+    if (
+      /* SQLCOM_RENAME_TABLE and SQLCOM_DROP_DB don't come here */
+      wide_handler->sql_command == SQLCOM_DROP_TABLE ||
+      wide_handler->sql_command == SQLCOM_ALTER_TABLE
+    ) {
+      if (trx->locked_connections)
+      {
+        my_message(ER_SPIDER_ALTER_BEFORE_UNLOCK_NUM,
+          ER_SPIDER_ALTER_BEFORE_UNLOCK_STR, MYF(0));
+        DBUG_RETURN(ER_SPIDER_ALTER_BEFORE_UNLOCK_NUM);
+      }
+      DBUG_RETURN(0);
+    }
+    if (unlikely((error_num = spider_internal_start_trx(this))))
+    {
+      DBUG_RETURN(error_num);
+    }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  } else {
+    trans_register_ha(trx->thd, FALSE, spider_hton_ptr);
+    if (thd_test_options(trx->thd, OPTION_NOT_AUTOCOMMIT | OPTION_BEGIN))
+      trans_register_ha(trx->thd, TRUE, spider_hton_ptr);
+  }
+#endif
+
+  if (wide_handler->lock_table_type > 0 ||
+    wide_handler->sql_command == SQLCOM_UNLOCK_TABLES)
+  {
+    if (wide_handler->sql_command == SQLCOM_UNLOCK_TABLES)
+    {
+      /* lock tables does not call reset() */
+      /* unlock tables does not call store_lock() */
+      wide_handler->lock_table_type = 0;
+    }
+
+    /* lock/unlock tables */
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+    if (partition_handler_share && partition_handler_share->handlers)
+    {
+      uint roop_count;
+      for (roop_count = 0; roop_count < partition_handler_share->no_parts;
+        ++roop_count)
+      {
+        if (unlikely((error_num =
+          partition_handler_share->handlers[roop_count]->lock_tables())))
+        {
+          DBUG_RETURN(error_num);
+        }
+      }
+    } else {
+#endif
+      if (unlikely((error_num = lock_tables())))
+      {
+        DBUG_RETURN(error_num);
+      }
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+    }
+#endif
+  }
+
+  DBUG_PRINT("info",("spider trx_start=%s",
+    trx->trx_start ? "TRUE" : "FALSE"));
+  /* need to check after spider_internal_start_trx() */
+  if (trx->trx_start)
+  {
+    switch (wide_handler->sql_command)
+    {
+      case SQLCOM_SELECT:
+      case SQLCOM_HA_READ:
+#ifdef HS_HAS_SQLCOM
+      case SQLCOM_HS_READ:
+#endif
+        /* nothing to do */
+        break;
+      case SQLCOM_UPDATE:
+      case SQLCOM_UPDATE_MULTI:
+#ifdef HS_HAS_SQLCOM
+      case SQLCOM_HS_UPDATE:
+#endif
+      case SQLCOM_CREATE_TABLE:
+      case SQLCOM_INSERT:
+      case SQLCOM_INSERT_SELECT:
+      case SQLCOM_DELETE:
+      case SQLCOM_LOAD:
+      case SQLCOM_REPLACE:
+      case SQLCOM_REPLACE_SELECT:
+      case SQLCOM_DELETE_MULTI:
+#ifdef HS_HAS_SQLCOM
+      case SQLCOM_HS_INSERT:
+      case SQLCOM_HS_DELETE:
+#endif
+      default:
+        trx->updated_in_this_trx = TRUE;
+        DBUG_PRINT("info",("spider trx->updated_in_this_trx=TRUE"));
+        break;
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::start_stmt(
+  THD *thd,
+  thr_lock_type lock_type
+) {
+  DBUG_ENTER("ha_spider::start_stmt");
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  if (
+    wide_handler->stage == SPD_HND_STAGE_START_STMT &&
+    wide_handler->stage_executor != this)
+  {
+    DBUG_RETURN(0);
+  }
+  wide_handler->stage = SPD_HND_STAGE_START_STMT;
+  wide_handler->stage_executor = this;
+#endif
+  DBUG_RETURN(0);
+}
+
+int ha_spider::reset()
+{
+  int error_num = 0, error_num2, roop_count;
+  THD *thd = ha_thd();
+  SPIDER_TRX *tmp_trx, *trx_bak;
+  SPIDER_CONDITION *tmp_cond;
+/*
+  char first_byte, first_byte_bak;
+*/
+  backup_error_status();
+  DBUG_ENTER("ha_spider::reset");
+  DBUG_PRINT("info",("spider this=%p", this));
+#ifdef HA_CAN_BULK_ACCESS
+  SPIDER_BULK_ACCESS_LINK *tmp_bulk_access_link = bulk_access_link_first;
+  while (tmp_bulk_access_link)
+  {
+    DBUG_PRINT("info",("spider bulk_access_link->spider->dbton_handler=%p",
+      tmp_bulk_access_link->spider->dbton_handler));
+    DBUG_PRINT("info",("spider ptr bulk_access_link->spider->dbton_handler=%p",
+      &tmp_bulk_access_link->spider->dbton_handler));
+    if (!tmp_bulk_access_link->used)
+      break;
+    if ((error_num2 = tmp_bulk_access_link->spider->ha_reset()))
+      error_num = error_num2;
+    tmp_bulk_access_link->used = FALSE;
+    tmp_bulk_access_link = tmp_bulk_access_link->next;
+  }
+  synced_from_clone_source = FALSE;
+  bulk_access_started = FALSE;
+  bulk_access_executing = FALSE;
+  bulk_access_pre_called = FALSE;
+  if (
+    bulk_access_link_first &&
+    !spider_param_bulk_access_free(share->bulk_access_free)
+  ) {
+    do {
+      DBUG_PRINT("info",("spider bulk_access_link->spider->dbton_handler=%p",
+        bulk_access_link_first->spider->dbton_handler));
+      DBUG_PRINT("info",("spider ptr bulk_access_link->spider->dbton_handler=%p",
+        &bulk_access_link_first->spider->dbton_handler));
+      bulk_access_link_current = bulk_access_link_first->next;
+      delete_bulk_access_link(bulk_access_link_first);
+      bulk_access_link_first = bulk_access_link_current;
+    } while (bulk_access_link_first);
+  }
+#endif
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  direct_aggregate_item_current = direct_aggregate_item_first;
+  while (direct_aggregate_item_current)
+  {
+    if (direct_aggregate_item_current->item)
+    {
+      delete direct_aggregate_item_current->item;
+      direct_aggregate_item_current->item = NULL;
+#ifdef SPIDER_ITEM_STRING_WITHOUT_SET_STR_WITH_COPY_AND_THDPTR
+      if (direct_aggregate_item_current->init_mem_root)
+      {
+        free_root(&direct_aggregate_item_current->mem_root, MYF(0));
+        direct_aggregate_item_current->init_mem_root = FALSE;
+      }
+#endif
+    }
+    direct_aggregate_item_current = direct_aggregate_item_current->next;
+  }
+  result_list.direct_aggregate = FALSE;
+  result_list.snap_direct_aggregate = FALSE;
+#endif
+  result_list.direct_distinct = FALSE;
+  store_error_num = 0;
+  if (
+    wide_handler &&
+    wide_handler->sql_command != SQLCOM_END
+  ) {
+    wide_handler->sql_command = SQLCOM_END;
+    wide_handler->between_flg = FALSE;
+    wide_handler->idx_bitmap_is_set = FALSE;
+    wide_handler->rnd_bitmap_is_set = FALSE;
+    wide_handler->quick_mode = FALSE;
+    wide_handler->keyread = FALSE;
+    wide_handler->ignore_dup_key = FALSE;
+    wide_handler->write_can_replace = FALSE;
+    wide_handler->insert_with_update = FALSE;
+    wide_handler->low_priority = FALSE;
+    wide_handler->high_priority = FALSE;
+    wide_handler->insert_delayed = FALSE;
+    wide_handler->lock_table_type = 0;
+    wide_handler->semi_trx_isolation_chk = FALSE;
+    wide_handler->semi_trx_chk = FALSE;
+    if (!is_clone)
+    {
+      memset(wide_handler->ft_discard_bitmap, 0xFF,
+        no_bytes_in_map(table->read_set));
+      memset(wide_handler->searched_bitmap, 0,
+        no_bytes_in_map(table->read_set));
+    }
+    while (wide_handler->condition)
+    {
+      tmp_cond = wide_handler->condition->next;
+      spider_free(spider_current_trx, wide_handler->condition, MYF(0));
+      wide_handler->condition = tmp_cond;
+    }
+    wide_handler->cond_check = FALSE;
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+    wide_handler->direct_update_fields = NULL;
+#endif
+#ifdef INFO_KIND_FORCE_LIMIT_BEGIN
+    wide_handler->info_limit = 9223372036854775807LL;
+#endif
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+    wide_handler->stage = SPD_HND_STAGE_NONE;
+    wide_handler->stage_executor = NULL;
+#endif
+  }
+  if (!(tmp_trx = spider_get_trx(thd, TRUE, &error_num2)))
+  {
+    DBUG_PRINT("info",("spider get trx error"));
+    if (check_error_mode(error_num2))
+      error_num = error_num2;
+  }
+  if (share)
+  {
+    trx_bak = wide_handler->trx;
+    wide_handler->trx = tmp_trx;
+    if ((error_num2 = spider_db_free_result(this, FALSE)))
+      error_num = error_num2;
+    wide_handler->trx = trx_bak;
+    memset(need_mons, 0, sizeof(int) * share->link_count);
+    memset(result_list.casual_read, 0, sizeof(int) * share->link_count);
+    rm_bulk_tmp_table();
+    for (roop_count = share->link_count - 1; roop_count >= 0; roop_count--)
+    {
+      result_list.update_sqls[roop_count].length(0);
+
+      if ((error_num2 = close_opened_handler(roop_count, TRUE)))
+      {
+        if (check_error_mode(error_num2))
+          error_num = error_num2;
+      }
+
+      conn_kind[roop_count] = SPIDER_CONN_KIND_MYSQL;
+    }
+    result_list.bulk_update_mode = 0;
+    result_list.bulk_update_size = 0;
+    result_list.bulk_update_start = SPD_BU_NOT_START;
+    for (roop_count = 0; roop_count < (int) share->use_dbton_count;
+      roop_count++)
+    {
+      uint dbton_id = share->use_dbton_ids[roop_count];
+      if ((error_num2 = dbton_handler[dbton_id]->reset()))
+      {
+        if (check_error_mode(error_num2))
+          error_num = error_num2;
+      }
+    }
+  }
+  dml_inited = FALSE;
+  use_pre_call = FALSE;
+  use_pre_action = FALSE;
+  pre_bitmap_checked = FALSE;
+  bulk_insert = FALSE;
+  partition_handler_share->clone_bitmap_init = FALSE;
+  result_list.tmp_table_join = FALSE;
+  result_list.use_union = FALSE;
+  result_list.use_both_key = FALSE;
+  pt_clone_last_searcher = NULL;
+  conn_kinds = SPIDER_CONN_KIND_MYSQL;
+  use_index_merge = FALSE;
+  init_rnd_handler = FALSE;
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+  if (multi_range_keys)
+  {
+    DBUG_PRINT("info",("spider free multi_range_keys=%p", multi_range_keys));
+    spider_free(spider_current_trx, multi_range_keys, MYF(0));
+    multi_range_keys = NULL;
+  }
+#endif
+  multi_range_num = 0;
+  ft_handler = NULL;
+  ft_current = NULL;
+  ft_count = 0;
+  ft_init_without_index_init = FALSE;
+  sql_kinds = 0;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  hs_pushed_ret_fields_num = MAX_FIELDS;
+  hs_increment = FALSE;
+  hs_decrement = FALSE;
+#endif
+#endif
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  do_direct_update = FALSE;
+#endif
+  prev_index_rnd_init = SPD_NONE;
+  result_list.have_sql_kind_backup = FALSE;
+  result_list.direct_order_limit = FALSE;
+  result_list.direct_limit_offset = FALSE;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if ((error_num2 = reset_hs_strs(SPIDER_SQL_TYPE_UPDATE_HS)))
+    error_num = error_num2;
+#endif
+  result_list.set_split_read = FALSE;
+  result_list.insert_dup_update_pushdown = FALSE;
+  use_spatial_index = FALSE;
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+  use_fields = FALSE;
+#endif
+  error_mode = 0;
+#ifdef HA_CAN_BULK_ACCESS
+#ifndef DBUG_OFF
+  if (bulk_access_link_first)
+  {
+    DBUG_PRINT("info",("spider bulk_access_link->spider->dbton_handler=%p",
+      bulk_access_link_first->spider->dbton_handler));
+    DBUG_PRINT("info",("spider ptr bulk_access_link->spider->dbton_handler=%p",
+      &bulk_access_link_first->spider->dbton_handler));
+  }
+#endif
+#endif
+  DBUG_RETURN(error_num);
+}
+
+int ha_spider::extra(
+  enum ha_extra_function operation
+) {
+  int error_num;
+  DBUG_ENTER("ha_spider::extra");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider operation=%d", (int) operation));
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  if (
+    wide_handler->stage == SPD_HND_STAGE_EXTRA &&
+    wide_handler->stage_executor != this)
+  {
+    DBUG_RETURN(0);
+  }
+  wide_handler->stage = SPD_HND_STAGE_EXTRA;
+  wide_handler->stage_executor = this;
+#endif
+  switch (operation)
+  {
+    case HA_EXTRA_QUICK:
+      wide_handler->quick_mode = TRUE;
+      break;
+    case HA_EXTRA_KEYREAD:
+      if (!is_clone)
+      {
+        wide_handler->keyread = TRUE;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+        if (wide_handler->update_request)
+        {
+          if (check_partitioned())
+            wide_handler->keyread = FALSE;
+        }
+#endif
+      }
+      break;
+    case HA_EXTRA_NO_KEYREAD:
+      wide_handler->keyread = FALSE;
+      break;
+    case HA_EXTRA_IGNORE_DUP_KEY:
+      wide_handler->ignore_dup_key = TRUE;
+      break;
+    case HA_EXTRA_NO_IGNORE_DUP_KEY:
+      wide_handler->ignore_dup_key = FALSE;
+      break;
+    case HA_EXTRA_WRITE_CAN_REPLACE:
+      wide_handler->write_can_replace = TRUE;
+      break;
+    case HA_EXTRA_WRITE_CANNOT_REPLACE:
+      wide_handler->write_can_replace = FALSE;
+      break;
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+    case HA_EXTRA_INSERT_WITH_UPDATE:
+      wide_handler->insert_with_update = TRUE;
+      break;
+#endif
+    case HA_EXTRA_ATTACH_CHILDREN:
+      DBUG_PRINT("info",("spider HA_EXTRA_ATTACH_CHILDREN"));
+      if (!(wide_handler->trx = spider_get_trx(ha_thd(), TRUE, &error_num)))
+        DBUG_RETURN(error_num);
+      break;
+#if MYSQL_VERSION_ID < 50500
+#else
+    case HA_EXTRA_ADD_CHILDREN_LIST:
+      DBUG_PRINT("info",("spider HA_EXTRA_ADD_CHILDREN_LIST"));
+      if (!(wide_handler->trx = spider_get_trx(ha_thd(), TRUE, &error_num)))
+        DBUG_RETURN(error_num);
+      break;
+#endif
+#if defined(HA_EXTRA_HAS_STARTING_ORDERED_INDEX_SCAN) || defined(HA_EXTRA_HAS_HA_EXTRA_USE_CMP_REF)
+#ifdef HA_EXTRA_HAS_STARTING_ORDERED_INDEX_SCAN
+    case HA_EXTRA_STARTING_ORDERED_INDEX_SCAN:
+#endif
+#ifdef HA_EXTRA_HAS_HA_EXTRA_USE_CMP_REF
+    case HA_EXTRA_USE_CMP_REF:
+#endif
+      DBUG_PRINT("info",("spider HA_EXTRA_STARTING_ORDERED_INDEX_SCAN"));
+      if (table_share->primary_key != MAX_KEY)
+      {
+        DBUG_PRINT("info",("spider need primary key columns"));
+        KEY *key_info = &table->key_info[table->s->primary_key];
+        KEY_PART_INFO *key_part;
+        uint part_num;
+        for (
+          key_part = key_info->key_part, part_num = 0;
+          part_num < spider_user_defined_key_parts(key_info);
+          key_part++, part_num++
+        ) {
+          spider_set_bit(wide_handler->searched_bitmap,
+            key_part->field->field_index);
+        }
+      } else {
+        DBUG_PRINT("info",("spider need all columns"));
+        Field **field;
+        for (
+          field = table->field;
+          *field;
+          field++
+        ) {
+          spider_set_bit(wide_handler->searched_bitmap, (*field)->field_index);
+        }
+      }
+      break;
+#endif
+    default:
+      break;
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::index_init(
+  uint idx,
+  bool sorted
+) {
+  int error_num;
+  DBUG_ENTER("ha_spider::index_init");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider idx=%u", idx));
+#ifdef HA_CAN_BULK_ACCESS
+  DBUG_ASSERT(!bulk_access_started);
+  if (bulk_access_executing)
+  {
+    if (
+      !is_bulk_access_clone &&
+      bulk_access_link_exec_tgt->called
+    ) {
+      DBUG_RETURN(bulk_access_link_exec_tgt->spider->ha_index_init(
+        idx, sorted));
+    }
+  }
+#endif
+  if (!dml_inited)
+  {
+    if (unlikely((error_num = dml_init())))
+    {
+      DBUG_RETURN(error_num);
+    }
+  }
+  pushed_pos = NULL;
+  active_index = idx;
+  result_list.sorted = sorted;
+  spider_set_result_list_param(this);
+  mrr_with_cnt = FALSE;
+  init_index_handler = FALSE;
+  use_spatial_index = FALSE;
+
+  if (pre_bitmap_checked)
+    pre_bitmap_checked = FALSE;
+  else {
+    if (wide_handler->external_lock_type == F_WRLCK)
+    {
+      pk_update = FALSE;
+/*
+      check_and_start_bulk_update(SPD_BU_START_BY_INDEX_OR_RND_INIT);
+*/
+      if (
+        wide_handler->update_request &&
+        share->have_recovery_link &&
+        (pk_update = spider_check_pk_update(table))
+      ) {
+        bitmap_set_all(table->read_set);
+        if (is_clone)
+          memset(wide_handler->searched_bitmap, 0xFF,
+            no_bytes_in_map(table->read_set));
+      }
+    }
+
+    if (!is_clone)
+      set_select_column_mode();
+  }
+
+  if ((error_num = reset_sql_sql(
+    SPIDER_SQL_TYPE_SELECT_SQL | SPIDER_SQL_TYPE_HANDLER)))
+    DBUG_RETURN(error_num);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if ((error_num = reset_hs_sql(SPIDER_SQL_TYPE_SELECT_HS)))
+    DBUG_RETURN(error_num);
+  if ((error_num = reset_hs_keys(SPIDER_SQL_TYPE_SELECT_HS)))
+    DBUG_RETURN(error_num);
+#endif
+  result_list.check_direct_order_limit = FALSE;
+  prev_index_rnd_init = SPD_INDEX;
+  DBUG_RETURN(0);
+}
+
+#ifdef HA_CAN_BULK_ACCESS
+int ha_spider::pre_index_init(
+  uint idx,
+  bool sorted
+) {
+  DBUG_ENTER("ha_spider::pre_index_init");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(bulk_access_link_current->spider->ha_index_init(idx, sorted));
+}
+#endif
+
+int ha_spider::index_end()
+{
+  int error_num;
+  backup_error_status();
+  DBUG_ENTER("ha_spider::index_end");
+  DBUG_PRINT("info",("spider this=%p", this));
+#ifdef HA_CAN_BULK_ACCESS
+  DBUG_ASSERT(!bulk_access_started);
+  if (bulk_access_executing)
+  {
+    if (
+      !is_bulk_access_clone &&
+      bulk_access_link_exec_tgt->called
+    ) {
+      error_num = bulk_access_link_exec_tgt->spider->ha_index_end();
+      if (error_num)
+        DBUG_RETURN(check_error_mode(error_num));
+      DBUG_RETURN(0);
+    }
+  }
+#endif
+  active_index = MAX_KEY;
+/*
+#ifdef INFO_KIND_FORCE_LIMIT_BEGIN
+  info_limit = 9223372036854775807LL;
+#endif
+  if (
+    (error_num = drop_tmp_tables()) ||
+    (error_num = check_and_end_bulk_update(
+      SPD_BU_START_BY_INDEX_OR_RND_INIT)) ||
+    (error_num = spider_trx_check_link_idx_failed(this))
+  )
+    DBUG_RETURN(check_error_mode(error_num));
+*/
+  if ((error_num = drop_tmp_tables()))
+    DBUG_RETURN(check_error_mode(error_num));
+  result_list.use_union = FALSE;
+  DBUG_RETURN(0);
+}
+
+#ifdef HA_CAN_BULK_ACCESS
+int ha_spider::pre_index_end()
+{
+  DBUG_ENTER("ha_spider::pre_index_end");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(bulk_access_link_current->spider->ha_index_end());
+}
+#endif
+
+int ha_spider::index_read_map_internal(
+  uchar *buf,
+  const uchar *key,
+  key_part_map keypart_map,
+  enum ha_rkey_function find_flag
+) {
+  int error_num, roop_count;
+  key_range start_key;
+  SPIDER_CONN *conn;
+  backup_error_status();
+  DBUG_ENTER("ha_spider::index_read_map_internal");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (wide_handler->trx->thd->killed)
+  {
+    my_error(ER_QUERY_INTERRUPTED, MYF(0));
+    DBUG_RETURN(ER_QUERY_INTERRUPTED);
+  }
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  do_direct_update = FALSE;
+#endif
+  if (
+    find_flag >= HA_READ_MBR_CONTAIN &&
+    find_flag <= HA_READ_MBR_EQUAL
+  )
+    use_spatial_index = TRUE;
+
+  if ((error_num = index_handler_init()))
+    DBUG_RETURN(check_error_mode_eof(error_num));
+  if (is_clone)
+  {
+    DBUG_PRINT("info",("spider set pt_clone_last_searcher to %p",
+      pt_clone_source_handler));
+    pt_clone_source_handler->pt_clone_last_searcher = this;
+  }
+  spider_db_free_one_result_for_start_next(this);
+  spider_set_result_list_param(this);
+  check_direct_order_limit();
+  start_key.key = key;
+  start_key.keypart_map = keypart_map;
+  start_key.flag = find_flag;
+  if ((error_num = reset_sql_sql(
+    SPIDER_SQL_TYPE_SELECT_SQL | SPIDER_SQL_TYPE_HANDLER)))
+    DBUG_RETURN(error_num);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if ((error_num = reset_hs_keys(SPIDER_SQL_TYPE_SELECT_HS)))
+    DBUG_RETURN(error_num);
+#endif
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  if ((error_num = spider_set_conn_bg_param(this)))
+    DBUG_RETURN(error_num);
+#endif
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  check_select_column(FALSE);
+#endif
+  DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
+  result_list.finish_flg = FALSE;
+  result_list.record_num = 0;
+  if (wide_handler->keyread)
+    result_list.keyread = TRUE;
+  else
+    result_list.keyread = FALSE;
+  if (
+    (error_num = spider_db_append_select(this)) ||
+    (error_num = spider_db_append_select_columns(this))
+  )
+    DBUG_RETURN(error_num);
+  if (
+    share->key_hint &&
+    (error_num = append_hint_after_table_sql_part(
+      SPIDER_SQL_TYPE_SELECT_SQL))
+  )
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  set_where_pos_sql(SPIDER_SQL_TYPE_SELECT_SQL);
+  result_list.desc_flg = FALSE;
+  result_list.sorted = TRUE;
+  result_list.key_info = &table->key_info[active_index];
+  check_distinct_key_query();
+  result_list.limit_num =
+    result_list.internal_limit >= result_list.split_read ?
+    result_list.split_read : result_list.internal_limit;
+  DBUG_PRINT("info",("spider result_list.internal_limit=%lld",
+    result_list.internal_limit));
+  DBUG_PRINT("info",("spider result_list.split_read=%lld",
+    result_list.split_read));
+  DBUG_PRINT("info",("spider result_list.limit_num=%lld",
+    result_list.limit_num));
+  if (
+    (error_num = spider_db_append_key_where(
+      &start_key, NULL, this))
+  )
+    DBUG_RETURN(error_num);
+  DBUG_PRINT("info",("spider result_list.internal_limit=%lld",
+    result_list.internal_limit));
+  DBUG_PRINT("info",("spider result_list.split_read=%lld",
+    result_list.split_read));
+  DBUG_PRINT("info",("spider result_list.limit_num=%lld",
+    result_list.limit_num));
+  if (sql_kinds & SPIDER_SQL_KIND_SQL)
+  {
+    if (result_list.direct_order_limit)
+    {
+      if ((error_num =
+        append_key_order_for_direct_order_limit_with_alias_sql_part(
+          NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
+        DBUG_RETURN(error_num);
+    } else {
+      if ((error_num = append_key_order_with_alias_sql_part(
+        NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
+        DBUG_RETURN(error_num);
+    }
+    if ((error_num = append_limit_sql_part(
+      result_list.internal_offset,
+      result_list.limit_num,
+      SPIDER_SQL_TYPE_SELECT_SQL)))
+    {
+      DBUG_RETURN(error_num);
+    }
+    if (
+      (error_num = append_select_lock_sql_part(
+        SPIDER_SQL_TYPE_SELECT_SQL))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  if (sql_kinds & SPIDER_SQL_KIND_HANDLER)
+  {
+    if ((error_num = append_limit_sql_part(
+      result_list.internal_offset,
+      result_list.limit_num,
+      SPIDER_SQL_TYPE_HANDLER)))
+    {
+      DBUG_RETURN(error_num);
+    }
+  }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (sql_kinds & SPIDER_SQL_KIND_HS)
+  {
+    if ((error_num = append_limit_hs_part(
+      result_list.internal_offset,
+      result_list.limit_num,
+      SPIDER_SQL_TYPE_SELECT_HS)))
+    {
+      DBUG_RETURN(error_num);
+    }
+  }
+#endif
+
+  int roop_start, roop_end, lock_mode, link_ok;
+  lock_mode = spider_conn_lock_mode(this);
+  if (lock_mode)
+  {
+    /* "for update" or "lock in share mode" */
+    link_ok = spider_conn_link_idx_next(share->link_statuses,
+      conn_link_idx, -1, share->link_count,
+      SPIDER_LINK_STATUS_OK);
+    roop_start = spider_conn_link_idx_next(share->link_statuses,
+      conn_link_idx, -1, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY);
+    roop_end = share->link_count;
+  } else {
+    link_ok = search_link_idx;
+    roop_start = search_link_idx;
+    roop_end = search_link_idx + 1;
+  }
+  for (roop_count = roop_start; roop_count < roop_end;
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      conn_link_idx, roop_count, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY)
+  ) {
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+    if (result_list.bgs_phase > 0)
+    {
+      if ((error_num = spider_check_and_init_casual_read(
+        wide_handler->trx->thd, this,
+        roop_count)))
+        DBUG_RETURN(error_num);
+      if ((error_num = spider_bg_conn_search(this, roop_count, roop_start,
+        TRUE, FALSE, (roop_count != link_ok))))
+      {
+        if (
+          error_num != HA_ERR_END_OF_FILE &&
+          share->monitoring_kind[roop_count] &&
+          need_mons[roop_count]
+        ) {
+          error_num = spider_ping_table_mon_from_table(
+              wide_handler->trx,
+              wide_handler->trx->thd,
+              share,
+              roop_count,
+              (uint32) share->monitoring_sid[roop_count],
+              share->table_name,
+              share->table_name_length,
+              conn_link_idx[roop_count],
+              NULL,
+              0,
+              share->monitoring_kind[roop_count],
+              share->monitoring_limit[roop_count],
+              share->monitoring_flag[roop_count],
+              TRUE
+            );
+        }
+        DBUG_RETURN(check_error_mode_eof(error_num));
+      }
+    } else {
+#endif
+      ulong sql_type;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      if (conn_kind[roop_count] == SPIDER_CONN_KIND_MYSQL)
+      {
+#endif
+        conn = conns[roop_count];
+        if (sql_kind[roop_count] == SPIDER_SQL_KIND_SQL)
+        {
+          sql_type = SPIDER_SQL_TYPE_SELECT_SQL;
+        } else {
+          sql_type = SPIDER_SQL_TYPE_HANDLER;
+        }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      } else {
+        if (conn_kind[roop_count] == SPIDER_CONN_KIND_HS_READ)
+          conn = hs_r_conns[roop_count];
+        else
+          conn = hs_w_conns[roop_count];
+        sql_type = SPIDER_SQL_TYPE_SELECT_HS;
+      }
+#endif
+      spider_db_handler *dbton_hdl = dbton_handler[conn->dbton_id];
+      pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+      if (dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+      {
+        pthread_mutex_lock(&conn->mta_conn_mutex);
+        SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      }
+      if ((error_num = dbton_hdl->set_sql_for_exec(sql_type, roop_count)))
+      {
+        if (dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+        {
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+        }
+        DBUG_RETURN(error_num);
+      }
+      if (!dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+      {
+        pthread_mutex_lock(&conn->mta_conn_mutex);
+        SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      }
+      DBUG_PRINT("info",("spider sql_type=%lu", sql_type));
+#ifdef HA_CAN_BULK_ACCESS
+      if (
+        is_bulk_access_clone &&
+        !bulk_access_executing &&
+        conn_kind[roop_count] != SPIDER_CONN_KIND_MYSQL
+      ) {
+        connection_ids[roop_count] = conn->connection_id;
+        spider_trx_add_bulk_access_conn(wide_handler->trx, conn);
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+      } else {
+#endif
+        conn->need_mon = &need_mons[roop_count];
+        DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = TRUE;
+        conn->mta_conn_mutex_unlock_later = TRUE;
+        if ((error_num = spider_db_set_names(this, conn,
+          roop_count)))
+        {
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+          if (
+            share->monitoring_kind[roop_count] &&
+            need_mons[roop_count]
+          ) {
+            error_num = spider_ping_table_mon_from_table(
+                wide_handler->trx,
+                wide_handler->trx->thd,
+                share,
+                roop_count,
+                (uint32) share->monitoring_sid[roop_count],
+                share->table_name,
+                share->table_name_length,
+                conn_link_idx[roop_count],
+                NULL,
+                0,
+                share->monitoring_kind[roop_count],
+                share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
+                TRUE
+              );
+          }
+          DBUG_RETURN(check_error_mode_eof(error_num));
+        }
+        spider_conn_set_timeout_from_share(conn, roop_count,
+          wide_handler->trx->thd, share);
+        if (dbton_hdl->execute_sql(
+          sql_type,
+          conn,
+          result_list.quick_mode,
+          &need_mons[roop_count])
+        ) {
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          error_num = spider_db_errorno(conn);
+          if (
+            share->monitoring_kind[roop_count] &&
+            need_mons[roop_count]
+          ) {
+            error_num = spider_ping_table_mon_from_table(
+                wide_handler->trx,
+                wide_handler->trx->thd,
+                share,
+                roop_count,
+                (uint32) share->monitoring_sid[roop_count],
+                share->table_name,
+                share->table_name_length,
+                conn_link_idx[roop_count],
+                NULL,
+                0,
+                share->monitoring_kind[roop_count],
+                share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
+                TRUE
+              );
+          }
+          DBUG_RETURN(check_error_mode_eof(error_num));
+        }
+        connection_ids[roop_count] = conn->connection_id;
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        if (roop_count == link_ok)
+        {
+          if ((error_num = spider_db_store_result(this, roop_count, table)))
+          {
+            if (
+              error_num != HA_ERR_END_OF_FILE &&
+              share->monitoring_kind[roop_count] &&
+              need_mons[roop_count]
+            ) {
+              error_num = spider_ping_table_mon_from_table(
+                  wide_handler->trx,
+                  wide_handler->trx->thd,
+                  share,
+                  roop_count,
+                  (uint32) share->monitoring_sid[roop_count],
+                  share->table_name,
+                  share->table_name_length,
+                  conn_link_idx[roop_count],
+                  NULL,
+                  0,
+                  share->monitoring_kind[roop_count],
+                  share->monitoring_limit[roop_count],
+                  share->monitoring_flag[roop_count],
+                  TRUE
+                );
+            }
+            DBUG_RETURN(check_error_mode_eof(error_num));
+          }
+          result_link_idx = link_ok;
+        } else {
+          spider_db_discard_result(this, roop_count, conn);
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+        }
+#ifdef HA_CAN_BULK_ACCESS
+      }
+#endif
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+    }
+#endif
+  }
+  if (buf && (error_num = spider_db_fetch(buf, this, table)))
+    DBUG_RETURN(check_error_mode_eof(error_num));
+  DBUG_RETURN(0);
+}
+
+int ha_spider::pre_index_read_map(
+  const uchar *key,
+  key_part_map keypart_map,
+  enum ha_rkey_function find_flag,
+  bool use_parallel
+) {
+#ifdef HA_CAN_BULK_ACCESS
+  int error_num;
+#endif
+  DBUG_ENTER("ha_spider::pre_index_read_map");
+  DBUG_PRINT("info",("spider this=%p", this));
+#ifdef HA_CAN_BULK_ACCESS
+  if (bulk_access_started)
+  {
+    error_num = bulk_access_link_current->spider->pre_index_read_map(key,
+      keypart_map, find_flag, TRUE);
+    bulk_access_link_current->spider->bulk_access_pre_called = TRUE;
+    bulk_access_link_current->called = TRUE;
+    DBUG_RETURN(error_num);
+  } else if (
+    bulk_access_executing && !is_bulk_access_clone &&
+    bulk_access_link_exec_tgt->called
+  ) {
+    DBUG_RETURN(bulk_access_link_exec_tgt->spider->pre_index_read_map(key,
+      keypart_map, find_flag, TRUE));
+  }
+#endif
+  check_pre_call(use_parallel);
+  if (use_pre_call)
+  {
+    store_error_num =
+      index_read_map_internal(NULL, key, keypart_map, find_flag);
+#ifdef HA_CAN_BULK_ACCESS
+    if (
+      !store_error_num &&
+      bulk_access_executing &&
+      is_bulk_access_clone &&
+      !bulk_access_pre_called
+    ) {
+      bulk_req_exec();
+    }
+#endif
+    DBUG_RETURN(store_error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::index_read_map(
+  uchar *buf,
+  const uchar *key,
+  key_part_map keypart_map,
+  enum ha_rkey_function find_flag
+) {
+  int error_num;
+  DBUG_ENTER("ha_spider::index_read_map");
+  DBUG_PRINT("info",("spider this=%p", this));
+#ifdef HA_CAN_BULK_ACCESS
+  DBUG_ASSERT(!bulk_access_started);
+  if (bulk_access_executing)
+  {
+    if (is_bulk_access_clone)
+    {
+      if (bulk_access_pre_called)
+      {
+        SPIDER_CONN *conn;
+        int roop_count, roop_start, roop_end, tmp_lock_mode, link_ok,
+          tmp_error_num;
+        tmp_lock_mode = spider_conn_lock_mode(this);
+        if (tmp_lock_mode)
+        {
+          /* "for update" or "lock in share mode" */
+          link_ok = spider_conn_link_idx_next(share->link_statuses,
+            conn_link_idx, -1, share->link_count,
+            SPIDER_LINK_STATUS_OK);
+          roop_start = spider_conn_link_idx_next(share->link_statuses,
+            conn_link_idx, -1, share->link_count,
+            SPIDER_LINK_STATUS_RECOVERY);
+          roop_end = share->link_count;
+        } else {
+          link_ok = search_link_idx;
+          roop_start = search_link_idx;
+          roop_end = search_link_idx + 1;
+        }
+        for (roop_count = roop_start; roop_count < roop_end;
+          roop_count = spider_conn_link_idx_next(share->link_statuses,
+            conn_link_idx, roop_count, share->link_count,
+            SPIDER_LINK_STATUS_RECOVERY)
+        ) {
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+          if (conn_kind[roop_count] == SPIDER_CONN_KIND_MYSQL)
+          {
+#endif
+            conn = conns[roop_count];
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+          } else {
+            if (conn_kind[roop_count] == SPIDER_CONN_KIND_HS_READ)
+              conn = hs_r_conns[roop_count];
+            else
+              conn = hs_w_conns[roop_count];
+          }
+#endif
+          if ((tmp_error_num = spider_db_bulk_store_result(this, conn,
+            roop_count, (roop_count != link_ok))))
+          {
+            store_error_num = tmp_error_num;
+          } else {
+            result_link_idx = link_ok;
+          }
+        }
+        use_pre_call = TRUE;
+        bulk_access_pre_called = FALSE;
+      } else {
+        /* do access normally */
+      }
+    } else if (bulk_access_link_exec_tgt->called)
+    {
+      DBUG_RETURN(bulk_access_link_exec_tgt->spider->index_read_map(buf, key,
+        keypart_map, find_flag));
+    }
+  }
+#endif
+  if (use_pre_call)
+  {
+    if (store_error_num)
+    {
+      if (store_error_num == HA_ERR_END_OF_FILE)
+        table->status = STATUS_NOT_FOUND;
+      DBUG_RETURN(store_error_num);
+    }
+    if ((error_num = spider_bg_all_conn_pre_next(this, search_link_idx)))
+      DBUG_RETURN(error_num);
+    use_pre_call = FALSE;
+    if (
+      result_list.sorted &&
+      result_list.desc_flg
+    ) {
+      DBUG_RETURN(index_prev(buf));
+    }
+    DBUG_RETURN(index_next(buf));
+  }
+  DBUG_RETURN(index_read_map_internal(buf, key, keypart_map, find_flag));
+}
+
+int ha_spider::index_read_last_map_internal(
+  uchar *buf,
+  const uchar *key,
+  key_part_map keypart_map
+) {
+  int error_num;
+  key_range start_key;
+  SPIDER_CONN *conn;
+  backup_error_status();
+  DBUG_ENTER("ha_spider::index_read_last_map_internal");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (wide_handler->trx->thd->killed)
+  {
+    my_error(ER_QUERY_INTERRUPTED, MYF(0));
+    DBUG_RETURN(ER_QUERY_INTERRUPTED);
+  }
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  do_direct_update = FALSE;
+#endif
+  if ((error_num = index_handler_init()))
+    DBUG_RETURN(check_error_mode_eof(error_num));
+  if (is_clone)
+  {
+    DBUG_PRINT("info",("spider set pt_clone_last_searcher to %p",
+      pt_clone_source_handler));
+    pt_clone_source_handler->pt_clone_last_searcher = this;
+  }
+/*
+  spider_db_free_one_result_for_start_next(this);
+*/
+  if (
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    (
+      result_list.hs_has_result ||
+#endif
+      result_list.current
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    )
+#endif
+    &&
+    (error_num = spider_db_free_result(this, FALSE))
+  )
+    DBUG_RETURN(error_num);
+
+  check_direct_order_limit();
+  start_key.key = key;
+  start_key.keypart_map = keypart_map;
+  start_key.flag = HA_READ_KEY_EXACT;
+  if ((error_num = reset_sql_sql(
+    SPIDER_SQL_TYPE_SELECT_SQL | SPIDER_SQL_TYPE_HANDLER)))
+    DBUG_RETURN(error_num);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if ((error_num = reset_hs_keys(SPIDER_SQL_TYPE_SELECT_HS)))
+    DBUG_RETURN(error_num);
+#endif
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  if ((error_num = spider_set_conn_bg_param(this)))
+    DBUG_RETURN(error_num);
+#endif
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  check_select_column(FALSE);
+#endif
+  DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
+  result_list.finish_flg = FALSE;
+  result_list.record_num = 0;
+  if (wide_handler->keyread)
+    result_list.keyread = TRUE;
+  else
+    result_list.keyread = FALSE;
+  if (
+    (error_num = spider_db_append_select(this)) ||
+    (error_num = spider_db_append_select_columns(this))
+  )
+    DBUG_RETURN(error_num);
+  if (
+    share->key_hint &&
+    (error_num = append_hint_after_table_sql_part(
+      SPIDER_SQL_TYPE_SELECT_SQL))
+  )
+    DBUG_RETURN(error_num);
+  set_where_pos_sql(SPIDER_SQL_TYPE_SELECT_SQL);
+  result_list.desc_flg = TRUE;
+  result_list.sorted = TRUE;
+  result_list.key_info = &table->key_info[active_index];
+  check_distinct_key_query();
+  result_list.limit_num =
+    result_list.internal_limit >= result_list.split_read ?
+    result_list.split_read : result_list.internal_limit;
+  if (
+    (error_num = spider_db_append_key_where(
+      &start_key, NULL, this))
+  )
+    DBUG_RETURN(error_num);
+  if (sql_kinds & SPIDER_SQL_KIND_SQL)
+  {
+    if (result_list.direct_order_limit)
+    {
+      if ((error_num =
+        append_key_order_for_direct_order_limit_with_alias_sql_part(
+          NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
+        DBUG_RETURN(error_num);
+    } else {
+      if ((error_num = append_key_order_with_alias_sql_part(
+        NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
+        DBUG_RETURN(error_num);
+    }
+    if ((error_num = append_limit_sql_part(
+      result_list.internal_offset,
+      result_list.limit_num,
+      SPIDER_SQL_TYPE_SELECT_SQL)))
+    {
+      DBUG_RETURN(error_num);
+    }
+    if (
+      (error_num = append_select_lock_sql_part(
+        SPIDER_SQL_TYPE_SELECT_SQL))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  if (sql_kinds & SPIDER_SQL_KIND_HANDLER)
+  {
+    if ((error_num = append_limit_sql_part(
+      result_list.internal_offset,
+      result_list.limit_num,
+      SPIDER_SQL_TYPE_HANDLER)))
+    {
+      DBUG_RETURN(error_num);
+    }
+  }
+
+  int roop_start, roop_end, roop_count, tmp_lock_mode, link_ok;
+  tmp_lock_mode = spider_conn_lock_mode(this);
+  if (tmp_lock_mode)
+  {
+    /* "for update" or "lock in share mode" */
+    link_ok = spider_conn_link_idx_next(share->link_statuses,
+      conn_link_idx, -1, share->link_count,
+      SPIDER_LINK_STATUS_OK);
+    roop_start = spider_conn_link_idx_next(share->link_statuses,
+      conn_link_idx, -1, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY);
+    roop_end = share->link_count;
+  } else {
+    link_ok = search_link_idx;
+    roop_start = search_link_idx;
+    roop_end = search_link_idx + 1;
+  }
+  for (roop_count = roop_start; roop_count < roop_end;
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      conn_link_idx, roop_count, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY)
+  ) {
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+    if (result_list.bgs_phase > 0)
+    {
+      if ((error_num = spider_check_and_init_casual_read(
+        wide_handler->trx->thd, this,
+        roop_count)))
+        DBUG_RETURN(error_num);
+      if ((error_num = spider_bg_conn_search(this, roop_count, roop_start,
+        TRUE, FALSE, (roop_count != link_ok))))
+      {
+        if (
+          error_num != HA_ERR_END_OF_FILE &&
+          share->monitoring_kind[roop_count] &&
+          need_mons[roop_count]
+        ) {
+          error_num = spider_ping_table_mon_from_table(
+              wide_handler->trx,
+              wide_handler->trx->thd,
+              share,
+              roop_count,
+              (uint32) share->monitoring_sid[roop_count],
+              share->table_name,
+              share->table_name_length,
+              conn_link_idx[roop_count],
+              NULL,
+              0,
+              share->monitoring_kind[roop_count],
+              share->monitoring_limit[roop_count],
+              share->monitoring_flag[roop_count],
+              TRUE
+            );
+        }
+        DBUG_RETURN(check_error_mode_eof(error_num));
+      }
+    } else {
+#endif
+      ulong sql_type;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      if (conn_kind[roop_count] == SPIDER_CONN_KIND_MYSQL)
+      {
+#endif
+        conn = conns[roop_count];
+        if (sql_kind[roop_count] == SPIDER_SQL_KIND_SQL)
+        {
+          sql_type = SPIDER_SQL_TYPE_SELECT_SQL;
+        } else {
+          sql_type = SPIDER_SQL_TYPE_HANDLER;
+        }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      } else {
+        if (conn_kind[roop_count] == SPIDER_CONN_KIND_HS_READ)
+          conn = hs_r_conns[roop_count];
+        else
+          conn = hs_w_conns[roop_count];
+        sql_type = SPIDER_SQL_TYPE_SELECT_HS;
+      }
+#endif
+      spider_db_handler *dbton_hdl = dbton_handler[conn->dbton_id];
+      pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+      if (dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+      {
+        pthread_mutex_lock(&conn->mta_conn_mutex);
+        SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      }
+      if ((error_num = dbton_hdl->set_sql_for_exec(sql_type, roop_count)))
+      {
+        if (dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+        {
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+        }
+        DBUG_RETURN(error_num);
+      }
+      if (!dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+      {
+        pthread_mutex_lock(&conn->mta_conn_mutex);
+        SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      }
+      DBUG_PRINT("info",("spider sql_type=%lu", sql_type));
+#ifdef HA_CAN_BULK_ACCESS
+      if (is_bulk_access_clone)
+      {
+        connection_ids[roop_count] = conn->connection_id;
+        spider_trx_add_bulk_access_conn(wide_handler->trx, conn);
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+      } else {
+#endif
+        conn->need_mon = &need_mons[roop_count];
+        DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = TRUE;
+        conn->mta_conn_mutex_unlock_later = TRUE;
+        if ((error_num = spider_db_set_names(this, conn,
+          roop_count)))
+        {
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+          if (
+            share->monitoring_kind[roop_count] &&
+            need_mons[roop_count]
+          ) {
+            error_num = spider_ping_table_mon_from_table(
+                wide_handler->trx,
+                wide_handler->trx->thd,
+                share,
+                roop_count,
+                (uint32) share->monitoring_sid[roop_count],
+                share->table_name,
+                share->table_name_length,
+                conn_link_idx[roop_count],
+                NULL,
+                0,
+                share->monitoring_kind[roop_count],
+                share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
+                TRUE
+              );
+          }
+          DBUG_RETURN(check_error_mode_eof(error_num));
+        }
+        spider_conn_set_timeout_from_share(conn, roop_count,
+          wide_handler->trx->thd, share);
+        if (dbton_hdl->execute_sql(
+          sql_type,
+          conn,
+          result_list.quick_mode,
+          &need_mons[roop_count])
+        ) {
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          error_num = spider_db_errorno(conn);
+          if (
+            share->monitoring_kind[roop_count] &&
+            need_mons[roop_count]
+          ) {
+            error_num = spider_ping_table_mon_from_table(
+                wide_handler->trx,
+                wide_handler->trx->thd,
+                share,
+                roop_count,
+                (uint32) share->monitoring_sid[roop_count],
+                share->table_name,
+                share->table_name_length,
+                conn_link_idx[roop_count],
+                NULL,
+                0,
+                share->monitoring_kind[roop_count],
+                share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
+                TRUE
+              );
+          }
+          DBUG_RETURN(check_error_mode_eof(error_num));
+        }
+        connection_ids[roop_count] = conn->connection_id;
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        if (roop_count == link_ok)
+        {
+          if ((error_num = spider_db_store_result(this, roop_count, table)))
+          {
+            if (
+              error_num != HA_ERR_END_OF_FILE &&
+              share->monitoring_kind[roop_count] &&
+              need_mons[roop_count]
+            ) {
+              error_num = spider_ping_table_mon_from_table(
+                  wide_handler->trx,
+                  wide_handler->trx->thd,
+                  share,
+                  roop_count,
+                  (uint32) share->monitoring_sid[roop_count],
+                  share->table_name,
+                  share->table_name_length,
+                  conn_link_idx[roop_count],
+                  NULL,
+                  0,
+                  share->monitoring_kind[roop_count],
+                  share->monitoring_limit[roop_count],
+                  share->monitoring_flag[roop_count],
+                  TRUE
+                );
+            }
+            DBUG_RETURN(check_error_mode_eof(error_num));
+          }
+          result_link_idx = link_ok;
+        } else {
+          spider_db_discard_result(this, roop_count, conn);
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+        }
+#ifdef HA_CAN_BULK_ACCESS
+      }
+#endif
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+    }
+#endif
+  }
+  if (buf && (error_num = spider_db_fetch(buf, this, table)))
+    DBUG_RETURN(check_error_mode_eof(error_num));
+  DBUG_RETURN(0);
+}
+
+int ha_spider::pre_index_read_last_map(
+  const uchar *key,
+  key_part_map keypart_map,
+  bool use_parallel
+) {
+  DBUG_ENTER("ha_spider::pre_index_read_last_map");
+  DBUG_PRINT("info",("spider this=%p", this));
+  check_pre_call(use_parallel);
+  if (use_pre_call)
+  {
+    store_error_num =
+      index_read_last_map_internal(NULL, key, keypart_map);
+    DBUG_RETURN(store_error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::index_read_last_map(
+  uchar *buf,
+  const uchar *key,
+  key_part_map keypart_map
+) {
+  int error_num;
+  DBUG_ENTER("ha_spider::index_read_last_map");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (use_pre_call)
+  {
+    if (store_error_num)
+    {
+      if (store_error_num == HA_ERR_END_OF_FILE)
+        table->status = STATUS_NOT_FOUND;
+      DBUG_RETURN(store_error_num);
+    }
+    if ((error_num = spider_bg_all_conn_pre_next(this, search_link_idx)))
+      DBUG_RETURN(error_num);
+    use_pre_call = FALSE;
+    DBUG_RETURN(index_prev(buf));
+  }
+  DBUG_RETURN(index_read_last_map_internal(buf, key, keypart_map));
+}
+
+int ha_spider::index_next(
+  uchar *buf
+) {
+  int error_num;
+  backup_error_status();
+  DBUG_ENTER("ha_spider::index_next");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (wide_handler->trx->thd->killed)
+  {
+    my_error(ER_QUERY_INTERRUPTED, MYF(0));
+    DBUG_RETURN(ER_QUERY_INTERRUPTED);
+  }
+#ifdef HA_CAN_BULK_ACCESS
+  DBUG_ASSERT(!bulk_access_started);
+  if (bulk_access_executing)
+  {
+    if (
+      !is_bulk_access_clone &&
+      bulk_access_link_exec_tgt->called
+    ) {
+      error_num = bulk_access_link_exec_tgt->spider->index_next(buf);
+      if (error_num)
+        DBUG_RETURN(check_error_mode(error_num));
+      DBUG_RETURN(0);
+    }
+  }
+#endif
+  if (is_clone)
+  {
+    DBUG_PRINT("info",("spider set pt_clone_last_searcher to %p",
+      pt_clone_source_handler));
+    pt_clone_source_handler->pt_clone_last_searcher = this;
+  }
+  if (
+    result_list.sorted &&
+    result_list.desc_flg
+  ) {
+    if ((error_num = spider_db_seek_prev(buf, this, table)))
+      DBUG_RETURN(check_error_mode_eof(error_num));
+    DBUG_RETURN(0);
+  }
+  if ((error_num = spider_db_seek_next(buf, this, search_link_idx, table)))
+    DBUG_RETURN(check_error_mode_eof(error_num));
+  DBUG_RETURN(0);
+}
+
+int ha_spider::index_prev(
+  uchar *buf
+) {
+  int error_num;
+  backup_error_status();
+  DBUG_ENTER("ha_spider::index_prev");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (wide_handler->trx->thd->killed)
+  {
+    my_error(ER_QUERY_INTERRUPTED, MYF(0));
+    DBUG_RETURN(ER_QUERY_INTERRUPTED);
+  }
+#ifdef HA_CAN_BULK_ACCESS
+  DBUG_ASSERT(!bulk_access_started);
+  if (bulk_access_executing)
+  {
+    if (
+      !is_bulk_access_clone &&
+      bulk_access_link_exec_tgt->called
+    ) {
+      error_num = bulk_access_link_exec_tgt->spider->index_prev(buf);
+      if (error_num)
+        DBUG_RETURN(check_error_mode(error_num));
+      DBUG_RETURN(0);
+    }
+  }
+#endif
+  if (is_clone)
+  {
+    DBUG_PRINT("info",("spider set pt_clone_last_searcher to %p",
+      pt_clone_source_handler));
+    pt_clone_source_handler->pt_clone_last_searcher = this;
+  }
+  if (
+    result_list.sorted &&
+    result_list.desc_flg
+  ) {
+    if ((error_num = spider_db_seek_next(buf, this, search_link_idx, table)))
+      DBUG_RETURN(check_error_mode_eof(error_num));
+    DBUG_RETURN(0);
+  }
+  if ((error_num = spider_db_seek_prev(buf, this, table)))
+    DBUG_RETURN(check_error_mode_eof(error_num));
+  DBUG_RETURN(0);
+}
+
+int ha_spider::index_first_internal(
+  uchar *buf
+) {
+  int error_num;
+  SPIDER_CONN *conn;
+  backup_error_status();
+  DBUG_ENTER("ha_spider::index_first_internal");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (wide_handler->trx->thd->killed)
+  {
+    my_error(ER_QUERY_INTERRUPTED, MYF(0));
+    DBUG_RETURN(ER_QUERY_INTERRUPTED);
+  }
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  do_direct_update = FALSE;
+#endif
+  if ((error_num = index_handler_init()))
+    DBUG_RETURN(check_error_mode_eof(error_num));
+  if (is_clone)
+  {
+    DBUG_PRINT("info",("spider set pt_clone_last_searcher to %p",
+      pt_clone_source_handler));
+    pt_clone_source_handler->pt_clone_last_searcher = this;
+  }
+  if (
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    result_list.hs_has_result ||
+#endif
+    sql_is_empty(SPIDER_SQL_TYPE_HANDLER) ||
+    sql_is_empty(SPIDER_SQL_TYPE_SELECT_SQL)
+  ) {
+/*
+    spider_db_free_one_result_for_start_next(this);
+*/
+    if ((error_num = spider_db_free_result(this, FALSE)))
+      DBUG_RETURN(error_num);
+    if ((error_num = reset_sql_sql(
+      SPIDER_SQL_TYPE_SELECT_SQL | SPIDER_SQL_TYPE_HANDLER)))
+      DBUG_RETURN(error_num);
+
+    check_direct_order_limit();
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+    if ((error_num = spider_set_conn_bg_param(this)))
+      DBUG_RETURN(error_num);
+#endif
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+    check_select_column(FALSE);
+#endif
+    DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
+    result_list.finish_flg = FALSE;
+    result_list.record_num = 0;
+    if (wide_handler->keyread)
+      result_list.keyread = TRUE;
+    else
+      result_list.keyread = FALSE;
+    if (
+      (error_num = spider_db_append_select(this)) ||
+      (error_num = spider_db_append_select_columns(this))
+    )
+      DBUG_RETURN(error_num);
+    if (
+      share->key_hint &&
+      (error_num = append_hint_after_table_sql_part(
+        SPIDER_SQL_TYPE_SELECT_SQL))
+    )
+      DBUG_RETURN(error_num);
+    set_where_pos_sql(SPIDER_SQL_TYPE_SELECT_SQL);
+    result_list.desc_flg = FALSE;
+    result_list.sorted = TRUE;
+    result_list.key_info = &table->key_info[active_index];
+    result_list.key_order = 0;
+    check_distinct_key_query();
+    result_list.limit_num =
+      result_list.internal_limit >= result_list.split_read ?
+      result_list.split_read : result_list.internal_limit;
+    if (
+      (error_num = spider_db_append_key_where(
+        NULL, NULL, this))
+    )
+      DBUG_RETURN(error_num);
+    if (sql_kinds & SPIDER_SQL_KIND_SQL)
+    {
+      if (result_list.direct_order_limit)
+      {
+        if ((error_num =
+          append_key_order_for_direct_order_limit_with_alias_sql_part(
+            NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
+          DBUG_RETURN(error_num);
+      } else {
+        if ((error_num = append_key_order_with_alias_sql_part(
+          NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
+          DBUG_RETURN(error_num);
+      }
+      if ((error_num = append_limit_sql_part(
+        result_list.internal_offset,
+        result_list.limit_num,
+        SPIDER_SQL_TYPE_SELECT_SQL)))
+      {
+        DBUG_RETURN(error_num);
+      }
+      if (
+        (error_num = append_select_lock_sql_part(
+          SPIDER_SQL_TYPE_SELECT_SQL))
+      ) {
+        DBUG_RETURN(error_num);
+      }
+    }
+    if (sql_kinds & SPIDER_SQL_KIND_HANDLER)
+    {
+      if ((error_num = append_limit_sql_part(
+        result_list.internal_offset,
+        result_list.limit_num,
+        SPIDER_SQL_TYPE_HANDLER)))
+      {
+        DBUG_RETURN(error_num);
+      }
+    }
+
+    int roop_start, roop_end, roop_count, tmp_lock_mode, link_ok;
+    tmp_lock_mode = spider_conn_lock_mode(this);
+    if (tmp_lock_mode)
+    {
+      /* "for update" or "lock in share mode" */
+      link_ok = spider_conn_link_idx_next(share->link_statuses,
+        conn_link_idx, -1, share->link_count,
+        SPIDER_LINK_STATUS_OK);
+      roop_start = spider_conn_link_idx_next(share->link_statuses,
+        conn_link_idx, -1, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY);
+      roop_end = share->link_count;
+    } else {
+      link_ok = search_link_idx;
+      roop_start = search_link_idx;
+      roop_end = search_link_idx + 1;
+    }
+    for (roop_count = roop_start; roop_count < roop_end;
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        conn_link_idx, roop_count, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY)
+    ) {
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+      if (result_list.bgs_phase > 0)
+      {
+        if ((error_num = spider_check_and_init_casual_read(
+          wide_handler->trx->thd, this,
+          roop_count)))
+          DBUG_RETURN(error_num);
+        if ((error_num = spider_bg_conn_search(this, roop_count, roop_start,
+          TRUE, FALSE, (roop_count != link_ok))))
+        {
+          if (
+            error_num != HA_ERR_END_OF_FILE &&
+            share->monitoring_kind[roop_count] &&
+            need_mons[roop_count]
+          ) {
+            error_num = spider_ping_table_mon_from_table(
+                wide_handler->trx,
+                wide_handler->trx->thd,
+                share,
+                roop_count,
+                (uint32) share->monitoring_sid[roop_count],
+                share->table_name,
+                share->table_name_length,
+                conn_link_idx[roop_count],
+                NULL,
+                0,
+                share->monitoring_kind[roop_count],
+                share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
+                TRUE
+              );
+          }
+          DBUG_RETURN(check_error_mode_eof(error_num));
+        }
+      } else {
+#endif
+        ulong sql_type;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+        if (conn_kind[roop_count] == SPIDER_CONN_KIND_MYSQL)
+        {
+#endif
+          conn = conns[roop_count];
+          if (sql_kind[roop_count] == SPIDER_SQL_KIND_SQL)
+          {
+            sql_type = SPIDER_SQL_TYPE_SELECT_SQL;
+          } else {
+            sql_type = SPIDER_SQL_TYPE_HANDLER;
+          }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+        } else {
+          if (conn_kind[roop_count] == SPIDER_CONN_KIND_HS_READ)
+            conn = hs_r_conns[roop_count];
+          else
+            conn = hs_w_conns[roop_count];
+          sql_type = SPIDER_SQL_TYPE_SELECT_HS;
+        }
+#endif
+        spider_db_handler *dbton_hdl = dbton_handler[conn->dbton_id];
+        pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+        if (dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+        {
+          pthread_mutex_lock(&conn->mta_conn_mutex);
+          SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        }
+        if ((error_num =
+          dbton_hdl->set_sql_for_exec(sql_type, roop_count)))
+        {
+          if (dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+          {
+            SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+            pthread_mutex_unlock(&conn->mta_conn_mutex);
+          }
+          DBUG_RETURN(error_num);
+        }
+        if (!dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+        {
+          pthread_mutex_lock(&conn->mta_conn_mutex);
+          SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        }
+        DBUG_PRINT("info",("spider sql_type=%lu", sql_type));
+#ifdef HA_CAN_BULK_ACCESS
+        if (is_bulk_access_clone)
+        {
+          connection_ids[roop_count] = conn->connection_id;
+          spider_trx_add_bulk_access_conn(wide_handler->trx, conn);
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+        } else {
+#endif
+          conn->need_mon = &need_mons[roop_count];
+          DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = TRUE;
+          conn->mta_conn_mutex_unlock_later = TRUE;
+          if ((error_num = spider_db_set_names(this, conn,
+            roop_count)))
+          {
+            DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+            DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+            conn->mta_conn_mutex_lock_already = FALSE;
+            conn->mta_conn_mutex_unlock_later = FALSE;
+            SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+            pthread_mutex_unlock(&conn->mta_conn_mutex);
+            if (
+              share->monitoring_kind[roop_count] &&
+              need_mons[roop_count]
+            ) {
+              error_num = spider_ping_table_mon_from_table(
+                  wide_handler->trx,
+                  wide_handler->trx->thd,
+                  share,
+                  roop_count,
+                  (uint32) share->monitoring_sid[roop_count],
+                  share->table_name,
+                  share->table_name_length,
+                  conn_link_idx[roop_count],
+                  NULL,
+                  0,
+                  share->monitoring_kind[roop_count],
+                  share->monitoring_limit[roop_count],
+                  share->monitoring_flag[roop_count],
+                  TRUE
+                );
+            }
+            DBUG_RETURN(check_error_mode_eof(error_num));
+          }
+          spider_conn_set_timeout_from_share(conn, roop_count,
+            wide_handler->trx->thd, share);
+          if (dbton_hdl->execute_sql(
+            sql_type,
+            conn,
+            result_list.quick_mode,
+            &need_mons[roop_count])
+          ) {
+            DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+            DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+            conn->mta_conn_mutex_lock_already = FALSE;
+            conn->mta_conn_mutex_unlock_later = FALSE;
+            error_num = spider_db_errorno(conn);
+            if (
+              share->monitoring_kind[roop_count] &&
+              need_mons[roop_count]
+            ) {
+              error_num = spider_ping_table_mon_from_table(
+                  wide_handler->trx,
+                  wide_handler->trx->thd,
+                  share,
+                  roop_count,
+                  (uint32) share->monitoring_sid[roop_count],
+                  share->table_name,
+                  share->table_name_length,
+                  conn_link_idx[roop_count],
+                  NULL,
+                  0,
+                  share->monitoring_kind[roop_count],
+                  share->monitoring_limit[roop_count],
+                  share->monitoring_flag[roop_count],
+                  TRUE
+                );
+            }
+            DBUG_RETURN(check_error_mode_eof(error_num));
+          }
+          connection_ids[roop_count] = conn->connection_id;
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          if (roop_count == link_ok)
+          {
+            if ((error_num = spider_db_store_result(this, roop_count, table)))
+            {
+              if (
+                error_num != HA_ERR_END_OF_FILE &&
+                share->monitoring_kind[roop_count] &&
+                need_mons[roop_count]
+              ) {
+                error_num = spider_ping_table_mon_from_table(
+                    wide_handler->trx,
+                    wide_handler->trx->thd,
+                    share,
+                    roop_count,
+                    (uint32) share->monitoring_sid[roop_count],
+                    share->table_name,
+                    share->table_name_length,
+                    conn_link_idx[roop_count],
+                    NULL,
+                    0,
+                    share->monitoring_kind[roop_count],
+                    share->monitoring_limit[roop_count],
+                    share->monitoring_flag[roop_count],
+                    TRUE
+                  );
+              }
+              DBUG_RETURN(check_error_mode_eof(error_num));
+            }
+            result_link_idx = link_ok;
+          } else {
+            spider_db_discard_result(this, roop_count, conn);
+            SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+            pthread_mutex_unlock(&conn->mta_conn_mutex);
+          }
+#ifdef HA_CAN_BULK_ACCESS
+        }
+#endif
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+      }
+#endif
+    }
+  }
+
+  if (buf)
+  {
+    if (
+      result_list.sorted &&
+      result_list.desc_flg
+    ) {
+      if ((error_num = spider_db_seek_last(buf, this, search_link_idx, table)))
+        DBUG_RETURN(check_error_mode_eof(error_num));
+      DBUG_RETURN(0);
+    }
+    if ((error_num = spider_db_seek_first(buf, this, table)))
+      DBUG_RETURN(check_error_mode_eof(error_num));
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::pre_index_first(
+  bool use_parallel
+) {
+  DBUG_ENTER("ha_spider::pre_index_first");
+  DBUG_PRINT("info",("spider this=%p", this));
+  check_pre_call(use_parallel);
+  if (use_pre_call)
+  {
+    store_error_num =
+      index_first_internal(NULL);
+    DBUG_RETURN(store_error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::index_first(
+  uchar *buf
+) {
+  int error_num;
+  DBUG_ENTER("ha_spider::index_first");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (use_pre_call)
+  {
+    if (store_error_num)
+    {
+      if (store_error_num == HA_ERR_END_OF_FILE)
+        table->status = STATUS_NOT_FOUND;
+      DBUG_RETURN(store_error_num);
+    }
+    if ((error_num = spider_bg_all_conn_pre_next(this, search_link_idx)))
+      DBUG_RETURN(error_num);
+    use_pre_call = FALSE;
+    DBUG_RETURN(index_next(buf));
+  }
+  DBUG_RETURN(index_first_internal(buf));
+}
+
+int ha_spider::index_last_internal(
+  uchar *buf
+) {
+  int error_num;
+  SPIDER_CONN *conn;
+  backup_error_status();
+  DBUG_ENTER("ha_spider::index_last_internal");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (wide_handler->trx->thd->killed)
+  {
+    my_error(ER_QUERY_INTERRUPTED, MYF(0));
+    DBUG_RETURN(ER_QUERY_INTERRUPTED);
+  }
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  do_direct_update = FALSE;
+#endif
+  if ((error_num = index_handler_init()))
+    DBUG_RETURN(check_error_mode_eof(error_num));
+  if (is_clone)
+  {
+    DBUG_PRINT("info",("spider set pt_clone_last_searcher to %p",
+      pt_clone_source_handler));
+    pt_clone_source_handler->pt_clone_last_searcher = this;
+  }
+  if (
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    result_list.hs_has_result ||
+#endif
+    sql_is_empty(SPIDER_SQL_TYPE_HANDLER) ||
+    sql_is_empty(SPIDER_SQL_TYPE_SELECT_SQL)
+  ) {
+/*
+    spider_db_free_one_result_for_start_next(this);
+*/
+    if ((error_num = spider_db_free_result(this, FALSE)))
+      DBUG_RETURN(error_num);
+    if ((error_num = reset_sql_sql(
+      SPIDER_SQL_TYPE_SELECT_SQL | SPIDER_SQL_TYPE_HANDLER)))
+      DBUG_RETURN(error_num);
+
+    check_direct_order_limit();
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+    if ((error_num = spider_set_conn_bg_param(this)))
+      DBUG_RETURN(error_num);
+#endif
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+    check_select_column(FALSE);
+#endif
+    DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
+    result_list.finish_flg = FALSE;
+    result_list.record_num = 0;
+    if (wide_handler->keyread)
+      result_list.keyread = TRUE;
+    else
+      result_list.keyread = FALSE;
+    if (
+      (error_num = spider_db_append_select(this)) ||
+      (error_num = spider_db_append_select_columns(this))
+    )
+      DBUG_RETURN(error_num);
+    if (
+      share->key_hint &&
+      (error_num = append_hint_after_table_sql_part(
+        SPIDER_SQL_TYPE_SELECT_SQL))
+    )
+      DBUG_RETURN(error_num);
+    set_where_pos_sql(SPIDER_SQL_TYPE_SELECT_SQL);
+    result_list.desc_flg = TRUE;
+    result_list.sorted = TRUE;
+    result_list.key_info = &table->key_info[active_index];
+    result_list.key_order = 0;
+    check_distinct_key_query();
+    result_list.limit_num =
+      result_list.internal_limit >= result_list.split_read ?
+      result_list.split_read : result_list.internal_limit;
+    if (
+      (error_num = spider_db_append_key_where(
+        NULL, NULL, this))
+    )
+      DBUG_RETURN(error_num);
+    if (sql_kinds & SPIDER_SQL_KIND_SQL)
+    {
+      if (result_list.direct_order_limit)
+      {
+        if ((error_num =
+          append_key_order_for_direct_order_limit_with_alias_sql_part(
+            NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
+          DBUG_RETURN(error_num);
+      } else {
+        if ((error_num = append_key_order_with_alias_sql_part(
+          NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
+          DBUG_RETURN(error_num);
+      }
+      if ((error_num = append_limit_sql_part(
+        result_list.internal_offset,
+        result_list.limit_num,
+        SPIDER_SQL_TYPE_SELECT_SQL)))
+      {
+        DBUG_RETURN(error_num);
+      }
+      if (
+        (error_num = append_select_lock_sql_part(
+          SPIDER_SQL_TYPE_SELECT_SQL))
+      ) {
+        DBUG_RETURN(error_num);
+      }
+    }
+    if (sql_kinds & SPIDER_SQL_KIND_HANDLER)
+    {
+      if ((error_num = append_limit_sql_part(
+        result_list.internal_offset,
+        result_list.limit_num,
+        SPIDER_SQL_TYPE_HANDLER)))
+      {
+        DBUG_RETURN(error_num);
+      }
+    }
+
+    int roop_start, roop_end, roop_count, tmp_lock_mode, link_ok;
+    tmp_lock_mode = spider_conn_lock_mode(this);
+    if (tmp_lock_mode)
+    {
+      /* "for update" or "lock in share mode" */
+      link_ok = spider_conn_link_idx_next(share->link_statuses,
+        conn_link_idx, -1, share->link_count,
+        SPIDER_LINK_STATUS_OK);
+      roop_start = spider_conn_link_idx_next(share->link_statuses,
+        conn_link_idx, -1, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY);
+      roop_end = share->link_count;
+    } else {
+      link_ok = search_link_idx;
+      roop_start = search_link_idx;
+      roop_end = search_link_idx + 1;
+    }
+    for (roop_count = roop_start; roop_count < roop_end;
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        conn_link_idx, roop_count, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY)
+    ) {
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+      if (result_list.bgs_phase > 0)
+      {
+        if ((error_num = spider_check_and_init_casual_read(
+          wide_handler->trx->thd, this,
+          roop_count)))
+          DBUG_RETURN(error_num);
+        if ((error_num = spider_bg_conn_search(this, roop_count, roop_start,
+          TRUE, FALSE, (roop_count != link_ok))))
+        {
+          if (
+            error_num != HA_ERR_END_OF_FILE &&
+            share->monitoring_kind[roop_count] &&
+            need_mons[roop_count]
+          ) {
+            error_num = spider_ping_table_mon_from_table(
+                wide_handler->trx,
+                wide_handler->trx->thd,
+                share,
+                roop_count,
+                (uint32) share->monitoring_sid[roop_count],
+                share->table_name,
+                share->table_name_length,
+                conn_link_idx[roop_count],
+                NULL,
+                0,
+                share->monitoring_kind[roop_count],
+                share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
+                TRUE
+              );
+          }
+          DBUG_RETURN(check_error_mode_eof(error_num));
+        }
+      } else {
+#endif
+        ulong sql_type;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+        if (conn_kind[roop_count] == SPIDER_CONN_KIND_MYSQL)
+        {
+#endif
+          conn = conns[roop_count];
+          if (sql_kind[roop_count] == SPIDER_SQL_KIND_SQL)
+          {
+            sql_type = SPIDER_SQL_TYPE_SELECT_SQL;
+          } else {
+            sql_type = SPIDER_SQL_TYPE_HANDLER;
+          }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+        } else {
+          if (conn_kind[roop_count] == SPIDER_CONN_KIND_HS_READ)
+            conn = hs_r_conns[roop_count];
+          else
+            conn = hs_w_conns[roop_count];
+          sql_type = SPIDER_SQL_TYPE_SELECT_HS;
+        }
+#endif
+        spider_db_handler *dbton_hdl = dbton_handler[conn->dbton_id];
+        pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+        if (dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+        {
+          pthread_mutex_lock(&conn->mta_conn_mutex);
+          SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        }
+        if ((error_num =
+          dbton_hdl->set_sql_for_exec(sql_type, roop_count)))
+        {
+          if (dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+          {
+            SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+            pthread_mutex_unlock(&conn->mta_conn_mutex);
+          }
+          DBUG_RETURN(error_num);
+        }
+        if (!dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+        {
+          pthread_mutex_lock(&conn->mta_conn_mutex);
+          SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        }
+        DBUG_PRINT("info",("spider sql_type=%lu", sql_type));
+#ifdef HA_CAN_BULK_ACCESS
+        if (is_bulk_access_clone)
+        {
+          connection_ids[roop_count] = conn->connection_id;
+          spider_trx_add_bulk_access_conn(wide_handler->trx, conn);
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+        } else {
+#endif
+          conn->need_mon = &need_mons[roop_count];
+          DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = TRUE;
+          conn->mta_conn_mutex_unlock_later = TRUE;
+          if ((error_num = spider_db_set_names(this, conn,
+            roop_count)))
+          {
+            DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+            DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+            conn->mta_conn_mutex_lock_already = FALSE;
+            conn->mta_conn_mutex_unlock_later = FALSE;
+            SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+            pthread_mutex_unlock(&conn->mta_conn_mutex);
+            if (
+              share->monitoring_kind[roop_count] &&
+              need_mons[roop_count]
+            ) {
+              error_num = spider_ping_table_mon_from_table(
+                  wide_handler->trx,
+                  wide_handler->trx->thd,
+                  share,
+                  roop_count,
+                  (uint32) share->monitoring_sid[roop_count],
+                  share->table_name,
+                  share->table_name_length,
+                  conn_link_idx[roop_count],
+                  NULL,
+                  0,
+                  share->monitoring_kind[roop_count],
+                  share->monitoring_limit[roop_count],
+                  share->monitoring_flag[roop_count],
+                  TRUE
+                );
+            }
+            DBUG_RETURN(check_error_mode_eof(error_num));
+          }
+          spider_conn_set_timeout_from_share(conn, roop_count,
+            wide_handler->trx->thd, share);
+          if (dbton_hdl->execute_sql(
+            sql_type,
+            conn,
+            result_list.quick_mode,
+            &need_mons[roop_count])
+          ) {
+            DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+            DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+            conn->mta_conn_mutex_lock_already = FALSE;
+            conn->mta_conn_mutex_unlock_later = FALSE;
+            error_num = spider_db_errorno(conn);
+            if (
+              share->monitoring_kind[roop_count] &&
+              need_mons[roop_count]
+            ) {
+              error_num = spider_ping_table_mon_from_table(
+                  wide_handler->trx,
+                  wide_handler->trx->thd,
+                  share,
+                  roop_count,
+                  (uint32) share->monitoring_sid[roop_count],
+                  share->table_name,
+                  share->table_name_length,
+                  conn_link_idx[roop_count],
+                  NULL,
+                  0,
+                  share->monitoring_kind[roop_count],
+                  share->monitoring_limit[roop_count],
+                  share->monitoring_flag[roop_count],
+                  TRUE
+                );
+            }
+            DBUG_RETURN(check_error_mode_eof(error_num));
+          }
+          connection_ids[roop_count] = conn->connection_id;
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          if (roop_count == link_ok)
+          {
+            if ((error_num = spider_db_store_result(this, roop_count, table)))
+            {
+              if (
+                error_num != HA_ERR_END_OF_FILE &&
+                share->monitoring_kind[roop_count] &&
+                need_mons[roop_count]
+              ) {
+                error_num = spider_ping_table_mon_from_table(
+                    wide_handler->trx,
+                    wide_handler->trx->thd,
+                    share,
+                    roop_count,
+                    (uint32) share->monitoring_sid[roop_count],
+                    share->table_name,
+                    share->table_name_length,
+                    conn_link_idx[roop_count],
+                    NULL,
+                    0,
+                    share->monitoring_kind[roop_count],
+                    share->monitoring_limit[roop_count],
+                    share->monitoring_flag[roop_count],
+                    TRUE
+                  );
+              }
+              DBUG_RETURN(check_error_mode_eof(error_num));
+            }
+            result_link_idx = link_ok;
+          } else {
+            spider_db_discard_result(this, roop_count, conn);
+            SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+            pthread_mutex_unlock(&conn->mta_conn_mutex);
+          }
+#ifdef HA_CAN_BULK_ACCESS
+        }
+#endif
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+      }
+#endif
+    }
+  }
+
+  if (buf)
+  {
+    if (
+      result_list.sorted &&
+      result_list.desc_flg
+    ) {
+      if ((error_num = spider_db_seek_first(buf, this, table)))
+        DBUG_RETURN(check_error_mode_eof(error_num));
+      DBUG_RETURN(0);
+    }
+    if ((error_num = spider_db_seek_last(buf, this, search_link_idx, table)))
+      DBUG_RETURN(check_error_mode_eof(error_num));
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::pre_index_last(
+  bool use_parallel
+) {
+  DBUG_ENTER("ha_spider::pre_index_last");
+  DBUG_PRINT("info",("spider this=%p", this));
+  check_pre_call(use_parallel);
+  if (use_pre_call)
+  {
+    store_error_num =
+      index_last_internal(NULL);
+    DBUG_RETURN(store_error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::index_last(
+  uchar *buf
+) {
+  int error_num;
+  DBUG_ENTER("ha_spider::index_last");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (use_pre_call)
+  {
+    if (store_error_num)
+    {
+      if (store_error_num == HA_ERR_END_OF_FILE)
+        table->status = STATUS_NOT_FOUND;
+      DBUG_RETURN(store_error_num);
+    }
+    if ((error_num = spider_bg_all_conn_pre_next(this, search_link_idx)))
+      DBUG_RETURN(error_num);
+    use_pre_call = FALSE;
+    DBUG_RETURN(index_prev(buf));
+  }
+  DBUG_RETURN(index_last_internal(buf));
+}
+
+int ha_spider::index_next_same(
+  uchar *buf,
+  const uchar *key,
+  uint keylen
+) {
+  int error_num;
+  backup_error_status();
+  DBUG_ENTER("ha_spider::index_next_same");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (wide_handler->trx->thd->killed)
+  {
+    my_error(ER_QUERY_INTERRUPTED, MYF(0));
+    DBUG_RETURN(ER_QUERY_INTERRUPTED);
+  }
+#ifdef HA_CAN_BULK_ACCESS
+  DBUG_ASSERT(!bulk_access_started);
+  if (bulk_access_executing)
+  {
+    if (
+      !is_bulk_access_clone &&
+      bulk_access_link_exec_tgt->called
+    ) {
+      error_num = bulk_access_link_exec_tgt->spider->index_next_same(buf, key,
+        keylen);
+      if (error_num)
+        DBUG_RETURN(check_error_mode(error_num));
+      DBUG_RETURN(0);
+    }
+  }
+#endif
+  if (is_clone)
+  {
+    DBUG_PRINT("info",("spider set pt_clone_last_searcher to %p",
+      pt_clone_source_handler));
+    pt_clone_source_handler->pt_clone_last_searcher = this;
+  }
+  if (
+    result_list.sorted &&
+    result_list.desc_flg
+  ) {
+    if ((error_num = spider_db_seek_prev(buf, this, table)))
+      DBUG_RETURN(check_error_mode_eof(error_num));
+    DBUG_RETURN(0);
+  }
+  if ((error_num = spider_db_seek_next(buf, this, search_link_idx, table)))
+    DBUG_RETURN(check_error_mode_eof(error_num));
+  DBUG_RETURN(0);
+}
+
+int ha_spider::read_range_first_internal(
+  uchar *buf,
+  const key_range *start_key,
+  const key_range *end_key,
+  bool eq_range,
+  bool sorted
+) {
+  int error_num;
+  SPIDER_CONN *conn;
+  backup_error_status();
+  DBUG_ENTER("ha_spider::read_range_first_internal");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (wide_handler->trx->thd->killed)
+  {
+    my_error(ER_QUERY_INTERRUPTED, MYF(0));
+    DBUG_RETURN(ER_QUERY_INTERRUPTED);
+  }
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  do_direct_update = FALSE;
+#endif
+  if (
+    start_key &&
+    start_key->flag >= HA_READ_MBR_CONTAIN &&
+    start_key->flag <= HA_READ_MBR_EQUAL
+  )
+    use_spatial_index = TRUE;
+
+  if (end_key)
+  {
+    key_compare_result_on_equal =
+      ((end_key->flag == HA_READ_BEFORE_KEY) ? 1 :
+      (end_key->flag == HA_READ_AFTER_KEY) ? -1 : 0);
+  }
+  range_key_part = table->key_info[active_index].key_part;
+
+  if ((error_num = index_handler_init()))
+    DBUG_RETURN(check_error_mode_eof(error_num));
+  if (is_clone)
+  {
+    DBUG_PRINT("info",("spider set pt_clone_last_searcher to %p",
+      pt_clone_source_handler));
+    pt_clone_source_handler->pt_clone_last_searcher = this;
+  }
+  spider_db_free_one_result_for_start_next(this);
+  check_direct_order_limit();
+  if ((error_num = reset_sql_sql(
+    SPIDER_SQL_TYPE_SELECT_SQL | SPIDER_SQL_TYPE_HANDLER)))
+    DBUG_RETURN(error_num);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if ((error_num = reset_hs_keys(SPIDER_SQL_TYPE_SELECT_HS)))
+    DBUG_RETURN(error_num);
+#endif
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  if ((error_num = spider_set_conn_bg_param(this)))
+    DBUG_RETURN(error_num);
+#endif
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  check_select_column(FALSE);
+#endif
+  DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
+  result_list.finish_flg = FALSE;
+  result_list.record_num = 0;
+  if (wide_handler->keyread)
+    result_list.keyread = TRUE;
+  else
+    result_list.keyread = FALSE;
+  if (
+    (error_num = spider_db_append_select(this)) ||
+    (error_num = spider_db_append_select_columns(this))
+  )
+    DBUG_RETURN(error_num);
+  if (
+    share->key_hint &&
+    (error_num = append_hint_after_table_sql_part(
+      SPIDER_SQL_TYPE_SELECT_SQL))
+  )
+    DBUG_RETURN(error_num);
+  set_where_pos_sql(SPIDER_SQL_TYPE_SELECT_SQL);
+  result_list.desc_flg = FALSE;
+  result_list.sorted = sorted;
+  result_list.key_info = &table->key_info[active_index];
+  check_distinct_key_query();
+  result_list.limit_num =
+    result_list.internal_limit >= result_list.split_read ?
+    result_list.split_read : result_list.internal_limit;
+  DBUG_PRINT("info",("spider limit_num=%lld", result_list.limit_num));
+  if (
+    (error_num = spider_db_append_key_where(
+      start_key, eq_range ? NULL : end_key, this))
+  )
+    DBUG_RETURN(error_num);
+  if (sql_kinds & SPIDER_SQL_KIND_SQL)
+  {
+    if (result_list.direct_order_limit)
+    {
+      if ((error_num =
+        append_key_order_for_direct_order_limit_with_alias_sql_part(
+          NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
+        DBUG_RETURN(error_num);
+    } else {
+      if ((error_num = append_key_order_with_alias_sql_part(
+        NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
+        DBUG_RETURN(error_num);
+    }
+    if ((error_num = append_limit_sql_part(
+      result_list.internal_offset,
+      result_list.limit_num,
+      SPIDER_SQL_TYPE_SELECT_SQL)))
+    {
+      DBUG_RETURN(error_num);
+    }
+    if (
+      (error_num = append_select_lock_sql_part(
+        SPIDER_SQL_TYPE_SELECT_SQL))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  if (sql_kinds & SPIDER_SQL_KIND_HANDLER)
+  {
+    if ((error_num = append_limit_sql_part(
+      result_list.internal_offset,
+      result_list.limit_num,
+      SPIDER_SQL_TYPE_HANDLER)))
+    {
+      DBUG_RETURN(error_num);
+    }
+  }
+
+  int roop_start, roop_end, roop_count, tmp_lock_mode, link_ok;
+  tmp_lock_mode = spider_conn_lock_mode(this);
+  if (tmp_lock_mode)
+  {
+    /* "for update" or "lock in share mode" */
+    link_ok = spider_conn_link_idx_next(share->link_statuses,
+      conn_link_idx, -1, share->link_count,
+      SPIDER_LINK_STATUS_OK);
+    roop_start = spider_conn_link_idx_next(share->link_statuses,
+      conn_link_idx, -1, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY);
+    roop_end = share->link_count;
+  } else {
+    link_ok = search_link_idx;
+    roop_start = search_link_idx;
+    roop_end = search_link_idx + 1;
+  }
+  for (roop_count = roop_start; roop_count < roop_end;
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      conn_link_idx, roop_count, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY)
+  ) {
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+    if (result_list.bgs_phase > 0)
+    {
+      if ((error_num = spider_check_and_init_casual_read(
+        wide_handler->trx->thd, this,
+        roop_count)))
+        DBUG_RETURN(error_num);
+      if ((error_num = spider_bg_conn_search(this, roop_count, roop_start,
+        TRUE, FALSE, (roop_count != link_ok))))
+      {
+        if (
+          error_num != HA_ERR_END_OF_FILE &&
+          share->monitoring_kind[roop_count] &&
+          need_mons[roop_count]
+        ) {
+          error_num = spider_ping_table_mon_from_table(
+              wide_handler->trx,
+              wide_handler->trx->thd,
+              share,
+              roop_count,
+              (uint32) share->monitoring_sid[roop_count],
+              share->table_name,
+              share->table_name_length,
+              conn_link_idx[roop_count],
+              NULL,
+              0,
+              share->monitoring_kind[roop_count],
+              share->monitoring_limit[roop_count],
+              share->monitoring_flag[roop_count],
+              TRUE
+            );
+        }
+        DBUG_RETURN(check_error_mode_eof(error_num));
+      }
+    } else {
+#endif
+      ulong sql_type;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      if (conn_kind[roop_count] == SPIDER_CONN_KIND_MYSQL)
+      {
+#endif
+        conn = conns[roop_count];
+        if (sql_kind[roop_count] == SPIDER_SQL_KIND_SQL)
+        {
+          sql_type = SPIDER_SQL_TYPE_SELECT_SQL;
+        } else {
+          sql_type = SPIDER_SQL_TYPE_HANDLER;
+        }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      } else {
+        if (conn_kind[roop_count] == SPIDER_CONN_KIND_HS_READ)
+          conn = hs_r_conns[roop_count];
+        else
+          conn = hs_w_conns[roop_count];
+        sql_type = SPIDER_SQL_TYPE_SELECT_HS;
+      }
+#endif
+      spider_db_handler *dbton_hdl = dbton_handler[conn->dbton_id];
+      pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+      if (dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+      {
+        pthread_mutex_lock(&conn->mta_conn_mutex);
+        SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      }
+      if ((error_num = dbton_hdl->set_sql_for_exec(sql_type, roop_count)))
+      {
+        if (dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+        {
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+        }
+        DBUG_RETURN(error_num);
+      }
+      if (!dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+      {
+        pthread_mutex_lock(&conn->mta_conn_mutex);
+        SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      }
+      DBUG_PRINT("info",("spider sql_type=%lu", sql_type));
+#ifdef HA_CAN_BULK_ACCESS
+      if (is_bulk_access_clone)
+      {
+        connection_ids[roop_count] = conn->connection_id;
+        spider_trx_add_bulk_access_conn(wide_handler->trx, conn);
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+      } else {
+#endif
+        conn->need_mon = &need_mons[roop_count];
+        DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = TRUE;
+        conn->mta_conn_mutex_unlock_later = TRUE;
+        if ((error_num = spider_db_set_names(this, conn,
+          roop_count)))
+        {
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+          if (
+            share->monitoring_kind[roop_count] &&
+            need_mons[roop_count]
+          ) {
+            error_num = spider_ping_table_mon_from_table(
+                wide_handler->trx,
+                wide_handler->trx->thd,
+                share,
+                roop_count,
+                (uint32) share->monitoring_sid[roop_count],
+                share->table_name,
+                share->table_name_length,
+                conn_link_idx[roop_count],
+                NULL,
+                0,
+                share->monitoring_kind[roop_count],
+                share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
+                TRUE
+              );
+          }
+          DBUG_RETURN(check_error_mode_eof(error_num));
+        }
+        spider_conn_set_timeout_from_share(conn, roop_count,
+          wide_handler->trx->thd, share);
+        if (dbton_hdl->execute_sql(
+          sql_type,
+          conn,
+          result_list.quick_mode,
+          &need_mons[roop_count])
+        ) {
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          error_num = spider_db_errorno(conn);
+          if (
+            share->monitoring_kind[roop_count] &&
+            need_mons[roop_count]
+          ) {
+            error_num = spider_ping_table_mon_from_table(
+                wide_handler->trx,
+                wide_handler->trx->thd,
+                share,
+                roop_count,
+                (uint32) share->monitoring_sid[roop_count],
+                share->table_name,
+                share->table_name_length,
+                conn_link_idx[roop_count],
+                NULL,
+                0,
+                share->monitoring_kind[roop_count],
+                share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
+                TRUE
+              );
+          }
+          DBUG_RETURN(check_error_mode_eof(error_num));
+        }
+        connection_ids[roop_count] = conn->connection_id;
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        if (roop_count == link_ok)
+        {
+          if ((error_num = spider_db_store_result(this, roop_count, table)))
+          {
+            if (
+              error_num != HA_ERR_END_OF_FILE &&
+              share->monitoring_kind[roop_count] &&
+              need_mons[roop_count]
+            ) {
+              error_num = spider_ping_table_mon_from_table(
+                  wide_handler->trx,
+                  wide_handler->trx->thd,
+                  share,
+                  roop_count,
+                  (uint32) share->monitoring_sid[roop_count],
+                  share->table_name,
+                  share->table_name_length,
+                  conn_link_idx[roop_count],
+                  NULL,
+                  0,
+                  share->monitoring_kind[roop_count],
+                  share->monitoring_limit[roop_count],
+                  share->monitoring_flag[roop_count],
+                  TRUE
+                );
+            }
+            DBUG_RETURN(check_error_mode_eof(error_num));
+          }
+          result_link_idx = link_ok;
+        } else {
+          spider_db_discard_result(this, roop_count, conn);
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+        }
+#ifdef HA_CAN_BULK_ACCESS
+      }
+#endif
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+    }
+#endif
+  }
+  if (buf && (error_num = spider_db_fetch(buf, this, table)))
+    DBUG_RETURN(check_error_mode_eof(error_num));
+  DBUG_RETURN(0);
+}
+
+int ha_spider::pre_read_range_first(
+  const key_range *start_key,
+  const key_range *end_key,
+  bool eq_range,
+  bool sorted,
+  bool use_parallel
+) {
+  DBUG_ENTER("ha_spider::pre_read_range_first");
+  DBUG_PRINT("info",("spider this=%p", this));
+  check_pre_call(use_parallel);
+  if (use_pre_call)
+  {
+    store_error_num =
+      read_range_first_internal(NULL, start_key, end_key, eq_range, sorted);
+    DBUG_RETURN(store_error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::read_range_first(
+  const key_range *start_key,
+  const key_range *end_key,
+  bool eq_range,
+  bool sorted
+) {
+  int error_num;
+  DBUG_ENTER("ha_spider::read_range_first");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (use_pre_call)
+  {
+    if (store_error_num)
+    {
+      if (store_error_num == HA_ERR_END_OF_FILE)
+        table->status = STATUS_NOT_FOUND;
+      DBUG_RETURN(store_error_num);
+    }
+    if ((error_num = spider_bg_all_conn_pre_next(this, search_link_idx)))
+      DBUG_RETURN(error_num);
+    use_pre_call = FALSE;
+    if ((error_num = read_range_next()))
+      DBUG_RETURN(error_num);
+    DBUG_RETURN(check_ha_range_eof());
+  }
+  if ((error_num = read_range_first_internal(table->record[0], start_key,
+    end_key, eq_range, sorted)))
+    DBUG_RETURN(error_num);
+  DBUG_RETURN(check_ha_range_eof());
+}
+
+int ha_spider::read_range_next()
+{
+  int error_num;
+  backup_error_status();
+  DBUG_ENTER("ha_spider::read_range_next");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (wide_handler->trx->thd->killed)
+  {
+    my_error(ER_QUERY_INTERRUPTED, MYF(0));
+    DBUG_RETURN(ER_QUERY_INTERRUPTED);
+  }
+  if (is_clone)
+  {
+    DBUG_PRINT("info",("spider set pt_clone_last_searcher to %p",
+      pt_clone_source_handler));
+    pt_clone_source_handler->pt_clone_last_searcher = this;
+  }
+  if (
+    result_list.sorted &&
+    result_list.desc_flg
+  ) {
+    if ((error_num = spider_db_seek_prev(table->record[0], this, table)))
+      DBUG_RETURN(check_error_mode_eof(error_num));
+    DBUG_RETURN(0);
+  }
+  if ((error_num = spider_db_seek_next(table->record[0], this, search_link_idx,
+    table)))
+    DBUG_RETURN(check_error_mode_eof(error_num));
+  DBUG_RETURN(check_ha_range_eof());
+}
+
+void ha_spider::reset_no_where_cond()
+{
+  uint roop_count;
+  DBUG_ENTER("ha_spider::reset_no_where_cond");
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (sql_kinds & (SPIDER_SQL_KIND_SQL | SPIDER_SQL_KIND_HANDLER))
+  {
+#endif
+    for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+    {
+      dbton_handler[share->use_sql_dbton_ids[roop_count]]->no_where_cond =
+        FALSE;
+    }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  }
+  if (sql_kinds & SPIDER_SQL_KIND_HS)
+  {
+    for (roop_count = 0; roop_count < share->use_hs_dbton_count; roop_count++)
+    {
+      dbton_handler[share->use_hs_dbton_ids[roop_count]]->no_where_cond =
+        FALSE;
+    }
+  }
+#endif
+  DBUG_VOID_RETURN;
+}
+
+bool ha_spider::check_no_where_cond()
+{
+  uint roop_count;
+  DBUG_ENTER("ha_spider::check_no_where_cond");
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (sql_kinds & (SPIDER_SQL_KIND_SQL | SPIDER_SQL_KIND_HANDLER))
+  {
+#endif
+    for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+    {
+      if (dbton_handler[share->use_sql_dbton_ids[roop_count]]->no_where_cond)
+      {
+        DBUG_RETURN(TRUE);
+      }
+    }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  }
+  if (sql_kinds & SPIDER_SQL_KIND_HS)
+  {
+    for (roop_count = 0; roop_count < share->use_hs_dbton_count; roop_count++)
+    {
+      if (dbton_handler[share->use_hs_dbton_ids[roop_count]]->no_where_cond)
+      {
+        DBUG_RETURN(TRUE);
+      }
+    }
+  }
+#endif
+  DBUG_RETURN(FALSE);
+}
+
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100000
+ha_rows ha_spider::multi_range_read_info_const(
+  uint keyno,
+  RANGE_SEQ_IF *seq,
+  void *seq_init_param,
+  uint n_ranges,
+  uint *bufsz,
+  uint *flags,
+  Cost_estimate *cost
+)
+#else
+ha_rows ha_spider::multi_range_read_info_const(
+  uint keyno,
+  RANGE_SEQ_IF *seq,
+  void *seq_init_param,
+  uint n_ranges,
+  uint *bufsz,
+  uint *flags,
+  COST_VECT *cost
+)
+#endif
+{
+  DBUG_ENTER("ha_spider::multi_range_read_info_const");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!pre_bitmap_checked)
+  {
+    if (wide_handler->external_lock_type == F_WRLCK)
+    {
+      pk_update = FALSE;
+      if (
+        wide_handler->update_request &&
+        share->have_recovery_link &&
+        (pk_update = spider_check_pk_update(table))
+      ) {
+        bitmap_set_all(table->read_set);
+        if (is_clone)
+          memset(wide_handler->searched_bitmap, 0xFF,
+            no_bytes_in_map(table->read_set));
+      }
+    }
+
+    if (!is_clone)
+      set_select_column_mode();
+
+    pre_bitmap_checked = TRUE;
+  }
+/*
+  multi_range_num = n_ranges;
+  mrr_have_range = FALSE;
+*/
+  ha_rows rows =
+    handler::multi_range_read_info_const(
+      keyno,
+      seq,
+      seq_init_param,
+      n_ranges,
+      bufsz,
+      flags,
+      cost
+    );
+  *flags &= ~HA_MRR_USE_DEFAULT_IMPL;
+  DBUG_PRINT("info",("spider rows=%llu", rows));
+  DBUG_RETURN(rows);
+}
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100000
+ha_rows ha_spider::multi_range_read_info(
+  uint keyno,
+  uint n_ranges,
+  uint keys,
+  uint key_parts,
+  uint *bufsz,
+  uint *flags,
+  Cost_estimate *cost
+)
+#else
+ha_rows ha_spider::multi_range_read_info(
+  uint keyno,
+  uint n_ranges,
+  uint keys,
+  uint key_parts,
+  uint *bufsz,
+  uint *flags,
+  COST_VECT *cost
+)
+#endif
+{
+  DBUG_ENTER("ha_spider::multi_range_read_info");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!pre_bitmap_checked)
+  {
+    if (wide_handler->external_lock_type == F_WRLCK)
+    {
+      pk_update = FALSE;
+      if (
+        wide_handler->update_request &&
+        share->have_recovery_link &&
+        (pk_update = spider_check_pk_update(table))
+      ) {
+        bitmap_set_all(table->read_set);
+        if (is_clone)
+          memset(wide_handler->searched_bitmap, 0xFF,
+            no_bytes_in_map(table->read_set));
+      }
+    }
+
+    if (!is_clone)
+      set_select_column_mode();
+
+    pre_bitmap_checked = TRUE;
+  }
+/*
+  multi_range_num = n_ranges;
+  mrr_have_range = FALSE;
+*/
+  ha_rows rows =
+    handler::multi_range_read_info(
+      keyno,
+      n_ranges,
+      keys,
+      key_parts,
+      bufsz,
+      flags,
+      cost
+    );
+  *flags &= ~HA_MRR_USE_DEFAULT_IMPL;
+  DBUG_PRINT("info",("spider rows=%llu", rows));
+  DBUG_RETURN(rows);
+}
+
+int ha_spider::multi_range_read_init(
+  RANGE_SEQ_IF *seq,
+  void *seq_init_param,
+  uint n_ranges,
+  uint mode,
+  HANDLER_BUFFER *buf
+) {
+  bka_mode = spider_param_bka_mode(wide_handler->trx->thd, share->bka_mode);
+  backup_error_status();
+  DBUG_ENTER("ha_spider::multi_range_read_init");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider n_ranges=%u", n_ranges));
+  multi_range_num = n_ranges;
+  mrr_have_range = FALSE;
+  reset_no_where_cond();
+  DBUG_RETURN(
+    handler::multi_range_read_init(
+      seq,
+      seq_init_param,
+      n_ranges,
+      mode,
+      buf
+    )
+  );
+}
+#endif
+
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100000
+int ha_spider::multi_range_read_next_first(
+  range_id_t *range_info
+)
+#else
+int ha_spider::multi_range_read_next_first(
+  char **range_info
+)
+#endif
+#else
+int ha_spider::read_multi_range_first_internal(
+  uchar *buf,
+  KEY_MULTI_RANGE **found_range_p,
+  KEY_MULTI_RANGE *ranges,
+  uint range_count,
+  bool sorted,
+  HANDLER_BUFFER *buffer
+)
+#endif
+{
+  int error_num, roop_count;
+  SPIDER_CONN *conn;
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+  int range_res;
+  backup_error_status();
+  DBUG_ENTER("ha_spider::multi_range_read_next_first");
+#else
+  bka_mode = spider_param_bka_mode(wide_handler->trx->thd, share->bka_mode);
+  backup_error_status();
+  DBUG_ENTER("ha_spider::read_multi_range_first_internal");
+#endif
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (wide_handler->trx->thd->killed)
+  {
+    my_error(ER_QUERY_INTERRUPTED, MYF(0));
+    DBUG_RETURN(ER_QUERY_INTERRUPTED);
+  }
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  do_direct_update = FALSE;
+#endif
+  if ((error_num = index_handler_init()))
+    DBUG_RETURN(check_error_mode_eof(error_num));
+  if (is_clone)
+  {
+    DBUG_PRINT("info",("spider set pt_clone_last_searcher to %p",
+      pt_clone_source_handler));
+    pt_clone_source_handler->pt_clone_last_searcher = this;
+  }
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+#else
+  multi_range_sorted = sorted;
+  multi_range_buffer = buffer;
+#endif
+
+  spider_db_free_one_result_for_start_next(this);
+  check_direct_order_limit();
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  if ((error_num = spider_set_conn_bg_param(this)))
+    DBUG_RETURN(error_num);
+#endif
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  check_select_column(FALSE);
+#endif
+  DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
+  result_list.finish_flg = FALSE;
+  result_list.record_num = 0;
+  if ((error_num = reset_sql_sql(
+    SPIDER_SQL_TYPE_SELECT_SQL | SPIDER_SQL_TYPE_HANDLER)))
+    DBUG_RETURN(error_num);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if ((error_num = reset_hs_keys(SPIDER_SQL_TYPE_SELECT_HS)))
+    DBUG_RETURN(error_num);
+#endif
+  result_list.desc_flg = FALSE;
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+  result_list.sorted = mrr_is_output_sorted;
+#else
+  result_list.sorted = sorted;
+#endif
+  result_list.key_info = &table->key_info[active_index];
+  if (
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+    multi_range_num == 1 ||
+#endif
+    result_list.multi_split_read <= 1 ||
+    (sql_kinds & SPIDER_SQL_KIND_HANDLER)
+  ) {
+    if (wide_handler->keyread)
+      result_list.keyread = TRUE;
+    else
+      result_list.keyread = FALSE;
+    mrr_with_cnt = FALSE;
+    if (
+      (error_num = spider_db_append_select(this)) ||
+      (error_num = spider_db_append_select_columns(this))
+    )
+      DBUG_RETURN(error_num);
+    if (
+      share->key_hint &&
+      (error_num = append_hint_after_table_sql_part(
+        SPIDER_SQL_TYPE_SELECT_SQL))
+    )
+      DBUG_RETURN(error_num);
+    set_where_pos_sql(SPIDER_SQL_TYPE_SELECT_SQL);
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+    error_num = HA_ERR_END_OF_FILE;
+    while (!(range_res = mrr_funcs.next(mrr_iter, &mrr_cur_range)))
+#else
+    for (
+      multi_range_curr = ranges,
+      multi_range_end = ranges + range_count;
+      multi_range_curr < multi_range_end;
+      multi_range_curr++
+    )
+#endif
+    {
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+      DBUG_PRINT("info",("spider range_res1=%d", range_res));
+#endif
+      result_list.limit_num =
+        result_list.internal_limit - result_list.record_num >=
+        result_list.split_read ?
+        result_list.split_read :
+        result_list.internal_limit - result_list.record_num;
+      DBUG_PRINT("info",("spider limit_num=%lld", result_list.limit_num));
+      if (
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+        (error_num = spider_db_append_key_where(
+          &mrr_cur_range.start_key,
+          SPIDER_TEST(mrr_cur_range.range_flag & EQ_RANGE) ?
+          NULL : &mrr_cur_range.end_key, this))
+#else
+        (error_num = spider_db_append_key_where(
+          &multi_range_curr->start_key,
+          SPIDER_TEST(multi_range_curr->range_flag & EQ_RANGE) ?
+          NULL : &multi_range_curr->end_key, this))
+#endif
+      )
+        DBUG_RETURN(error_num);
+      if (sql_kinds & SPIDER_SQL_KIND_SQL)
+      {
+        if (result_list.direct_order_limit)
+        {
+          if ((error_num =
+            append_key_order_for_direct_order_limit_with_alias_sql_part(
+              NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
+            DBUG_RETURN(error_num);
+        } else {
+          if ((error_num = append_key_order_with_alias_sql_part(
+            NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
+            DBUG_RETURN(error_num);
+        }
+        if ((error_num = append_limit_sql_part(
+          result_list.internal_offset + result_list.record_num,
+          result_list.limit_num,
+          SPIDER_SQL_TYPE_SELECT_SQL)))
+        {
+          DBUG_RETURN(error_num);
+        }
+        if (
+          (error_num = append_select_lock_sql_part(
+            SPIDER_SQL_TYPE_SELECT_SQL))
+        ) {
+          DBUG_RETURN(error_num);
+        }
+      }
+      if (sql_kinds & SPIDER_SQL_KIND_HANDLER)
+      {
+        if ((error_num = append_limit_sql_part(
+          result_list.internal_offset + result_list.record_num,
+          result_list.limit_num,
+          SPIDER_SQL_TYPE_HANDLER)))
+        {
+          DBUG_RETURN(error_num);
+        }
+      }
+
+      int roop_start, roop_end, tmp_lock_mode, link_ok;
+      tmp_lock_mode = spider_conn_lock_mode(this);
+      if (tmp_lock_mode)
+      {
+        /* "for update" or "lock in share mode" */
+        link_ok = spider_conn_link_idx_next(share->link_statuses,
+          conn_link_idx, -1, share->link_count,
+          SPIDER_LINK_STATUS_OK);
+        roop_start = spider_conn_link_idx_next(share->link_statuses,
+          conn_link_idx, -1, share->link_count,
+          SPIDER_LINK_STATUS_RECOVERY);
+        roop_end = share->link_count;
+      } else {
+        link_ok = search_link_idx;
+        roop_start = search_link_idx;
+        roop_end = search_link_idx + 1;
+      }
+      for (roop_count = roop_start; roop_count < roop_end;
+        roop_count = spider_conn_link_idx_next(share->link_statuses,
+          conn_link_idx, roop_count, share->link_count,
+          SPIDER_LINK_STATUS_RECOVERY)
+      ) {
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+        if (result_list.bgs_phase > 0)
+        {
+          if ((error_num = spider_check_and_init_casual_read(
+            wide_handler->trx->thd, this,
+            roop_count)))
+            DBUG_RETURN(error_num);
+          error_num = spider_bg_conn_search(this, roop_count, roop_start,
+            TRUE, FALSE, (roop_count != link_ok));
+          if (
+            error_num &&
+            error_num != HA_ERR_END_OF_FILE &&
+            share->monitoring_kind[roop_count] &&
+            need_mons[roop_count]
+          ) {
+            error_num = spider_ping_table_mon_from_table(
+                wide_handler->trx,
+                wide_handler->trx->thd,
+                share,
+                roop_count,
+                (uint32) share->monitoring_sid[roop_count],
+                share->table_name,
+                share->table_name_length,
+                conn_link_idx[roop_count],
+                NULL,
+                0,
+                share->monitoring_kind[roop_count],
+                share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
+                TRUE
+              );
+          }
+        } else {
+#endif
+          ulong sql_type;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+          if (conn_kind[roop_count] == SPIDER_CONN_KIND_MYSQL)
+          {
+#endif
+            conn = conns[roop_count];
+            if (sql_kind[roop_count] == SPIDER_SQL_KIND_SQL)
+            {
+              sql_type = SPIDER_SQL_TYPE_SELECT_SQL;
+            } else {
+              sql_type = SPIDER_SQL_TYPE_HANDLER;
+            }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+          } else {
+            if (conn_kind[roop_count] == SPIDER_CONN_KIND_HS_READ)
+              conn = hs_r_conns[roop_count];
+            else
+              conn = hs_w_conns[roop_count];
+            sql_type = SPIDER_SQL_TYPE_SELECT_HS;
+          }
+#endif
+          spider_db_handler *dbton_hdl = dbton_handler[conn->dbton_id];
+          pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+          if (dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+          {
+            pthread_mutex_lock(&conn->mta_conn_mutex);
+            SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          }
+          if ((error_num =
+            dbton_hdl->set_sql_for_exec(sql_type, roop_count)))
+          {
+            if (dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+            {
+              SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+              pthread_mutex_unlock(&conn->mta_conn_mutex);
+            }
+            DBUG_RETURN(error_num);
+          }
+          if (!dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+          {
+            pthread_mutex_lock(&conn->mta_conn_mutex);
+            SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          }
+          DBUG_PRINT("info",("spider sql_type=%lu", sql_type));
+#ifdef HA_CAN_BULK_ACCESS
+          if (is_bulk_access_clone)
+          {
+            connection_ids[roop_count] = conn->connection_id;
+            spider_trx_add_bulk_access_conn(wide_handler->trx, conn);
+            SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+            pthread_mutex_unlock(&conn->mta_conn_mutex);
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+            *range_info = (char *) mrr_cur_range.ptr;
+#else
+            *found_range_p = multi_range_curr;
+#endif
+            DBUG_RETURN(0);
+          } else {
+#endif
+            conn->need_mon = &need_mons[roop_count];
+            DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+            DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+            conn->mta_conn_mutex_lock_already = TRUE;
+            conn->mta_conn_mutex_unlock_later = TRUE;
+            if ((error_num = spider_db_set_names(this, conn,
+              roop_count)))
+            {
+              DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+              DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+              conn->mta_conn_mutex_lock_already = FALSE;
+              conn->mta_conn_mutex_unlock_later = FALSE;
+              SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+              pthread_mutex_unlock(&conn->mta_conn_mutex);
+              if (
+                share->monitoring_kind[roop_count] &&
+                need_mons[roop_count]
+              ) {
+                error_num = spider_ping_table_mon_from_table(
+                    wide_handler->trx,
+                    wide_handler->trx->thd,
+                    share,
+                    roop_count,
+                    (uint32) share->monitoring_sid[roop_count],
+                    share->table_name,
+                    share->table_name_length,
+                    conn_link_idx[roop_count],
+                    NULL,
+                    0,
+                    share->monitoring_kind[roop_count],
+                    share->monitoring_limit[roop_count],
+                    share->monitoring_flag[roop_count],
+                    TRUE
+                  );
+              }
+            }
+            if (!error_num)
+            {
+              spider_conn_set_timeout_from_share(conn, roop_count,
+                wide_handler->trx->thd, share);
+              if (dbton_hdl->execute_sql(
+                sql_type,
+                conn,
+                result_list.quick_mode,
+                &need_mons[roop_count])
+              ) {
+                DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+                DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+                conn->mta_conn_mutex_lock_already = FALSE;
+                conn->mta_conn_mutex_unlock_later = FALSE;
+                error_num = spider_db_errorno(conn);
+                if (
+                  share->monitoring_kind[roop_count] &&
+                  need_mons[roop_count]
+                ) {
+                  error_num = spider_ping_table_mon_from_table(
+                      wide_handler->trx,
+                      wide_handler->trx->thd,
+                      share,
+                      roop_count,
+                      (uint32) share->monitoring_sid[roop_count],
+                      share->table_name,
+                      share->table_name_length,
+                      conn_link_idx[roop_count],
+                      NULL,
+                      0,
+                      share->monitoring_kind[roop_count],
+                      share->monitoring_limit[roop_count],
+                      share->monitoring_flag[roop_count],
+                      TRUE
+                    );
+                }
+              }
+            }
+            if (!error_num)
+            {
+              connection_ids[roop_count] = conn->connection_id;
+              DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+              DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+              conn->mta_conn_mutex_lock_already = FALSE;
+              conn->mta_conn_mutex_unlock_later = FALSE;
+              if (roop_count == link_ok)
+              {
+                error_num = spider_db_store_result(this, roop_count, table);
+                if (
+                  error_num &&
+                  error_num != HA_ERR_END_OF_FILE &&
+                  share->monitoring_kind[roop_count] &&
+                  need_mons[roop_count]
+                ) {
+                  error_num = spider_ping_table_mon_from_table(
+                      wide_handler->trx,
+                      wide_handler->trx->thd,
+                      share,
+                      roop_count,
+                      (uint32) share->monitoring_sid[roop_count],
+                      share->table_name,
+                      share->table_name_length,
+                      conn_link_idx[roop_count],
+                      NULL,
+                      0,
+                      share->monitoring_kind[roop_count],
+                      share->monitoring_limit[roop_count],
+                      share->monitoring_flag[roop_count],
+                      TRUE
+                    );
+                }
+                result_link_idx = link_ok;
+              } else {
+                spider_db_discard_result(this, roop_count, conn);
+                SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+                pthread_mutex_unlock(&conn->mta_conn_mutex);
+              }
+            }
+#ifdef HA_CAN_BULK_ACCESS
+          }
+#endif
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+        }
+#endif
+        if (error_num)
+          break;
+      }
+      if (error_num)
+      {
+        if (
+          error_num != HA_ERR_END_OF_FILE &&
+          check_error_mode(error_num)
+        )
+          DBUG_RETURN(error_num);
+        DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
+        result_list.finish_flg = FALSE;
+        result_list.record_num = 0;
+        if (result_list.current)
+        {
+          DBUG_PRINT("info",
+            ("spider result_list.current->finish_flg = FALSE"));
+          result_list.current->finish_flg = FALSE;
+          spider_db_free_one_result(&result_list,
+            (SPIDER_RESULT *) result_list.current);
+          if (result_list.current == result_list.first)
+            result_list.current = NULL;
+          else
+            result_list.current = result_list.current->prev;
+        }
+      } else {
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+        if (!range_info)
+          DBUG_RETURN(0);
+        if (!(error_num = spider_db_fetch(table->record[0], this, table)))
+#else
+        if (!buf || !(error_num = spider_db_fetch(buf, this, table)))
+#endif
+        {
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+          *range_info = (char *) mrr_cur_range.ptr;
+#else
+          *found_range_p = multi_range_curr;
+#endif
+          DBUG_RETURN(check_ha_range_eof());
+        }
+        if (
+          error_num != HA_ERR_END_OF_FILE &&
+          check_error_mode(error_num)
+        )
+          DBUG_RETURN(error_num);
+        DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
+        result_list.finish_flg = FALSE;
+        result_list.record_num = 0;
+        if (result_list.current)
+        {
+          DBUG_PRINT("info",
+            ("spider result_list.current->finish_flg = FALSE"));
+          result_list.current->finish_flg = FALSE;
+          spider_db_free_one_result(&result_list,
+            (SPIDER_RESULT *) result_list.current);
+          if (result_list.current == result_list.first)
+            result_list.current = NULL;
+          else
+            result_list.current = result_list.current->prev;
+        }
+      }
+      if (check_no_where_cond())
+      {
+        DBUG_RETURN(check_error_mode_eof(0));
+      }
+      set_where_to_pos_sql(SPIDER_SQL_TYPE_SELECT_SQL);
+      set_where_to_pos_sql(SPIDER_SQL_TYPE_HANDLER);
+    }
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+    DBUG_PRINT("info",("spider range_res2=%d", range_res));
+#endif
+    if (error_num)
+      DBUG_RETURN(check_error_mode_eof(error_num));
+  } else {
+    bool tmp_high_priority = wide_handler->high_priority;
+    bool have_multi_range;
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+    const uchar *first_mrr_start_key;
+    const uchar *first_mrr_end_key;
+    uint first_mrr_start_key_length;
+    uint first_mrr_end_key_length;
+    have_second_range = FALSE;
+#endif
+    if (wide_handler->keyread)
+      result_list.keyread = TRUE;
+    else
+      result_list.keyread = FALSE;
+    mrr_with_cnt = TRUE;
+    multi_range_cnt = 0;
+    multi_range_hit_point = 0;
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+    if (multi_range_keys)
+    {
+      DBUG_PRINT("info",("spider free multi_range_keys=%p", multi_range_keys));
+      spider_free(spider_current_trx, multi_range_keys, MYF(0));
+    }
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100000
+    if (!(multi_range_keys = (range_id_t *)
+      spider_malloc(spider_current_trx, 1, sizeof(range_id_t) *
+        (multi_range_num < result_list.multi_split_read ?
+          multi_range_num : result_list.multi_split_read), MYF(MY_WME)))
+    )
+#else
+    if (!(multi_range_keys = (char **)
+      spider_malloc(spider_current_trx, 1, sizeof(char *) *
+        (multi_range_num < result_list.multi_split_read ?
+          multi_range_num : result_list.multi_split_read), MYF(MY_WME)))
+    )
+#endif
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    DBUG_PRINT("info",("spider alloc multi_range_keys=%p", multi_range_keys));
+    if (!mrr_key_buff)
+    {
+      if (!(mrr_key_buff = new spider_string[2]))
+      {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+      for (roop_count = 0; roop_count < 2; roop_count++)
+        mrr_key_buff[roop_count].init_calc_mem(235);
+    }
+#else
+    multi_range_ranges = ranges;
+#endif
+    error_num = 0;
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+    if ((range_res = mrr_funcs.next(mrr_iter, &mrr_cur_range)))
+    {
+      DBUG_PRINT("info",("spider range_res3=%d", range_res));
+      DBUG_PRINT("info",("spider result_list.finish_flg = TRUE"));
+      result_list.finish_flg = TRUE;
+      if (result_list.current)
+      {
+        DBUG_PRINT("info",("spider result_list.current->finish_flg = TRUE"));
+        result_list.current->finish_flg = TRUE;
+      }
+      table->status = STATUS_NOT_FOUND;
+      DBUG_RETURN(HA_ERR_END_OF_FILE);
+    }
+    DBUG_PRINT("info",("spider range_res4=%d", range_res));
+    mrr_key_buff[0].length(0);
+    first_mrr_start_key = mrr_cur_range.start_key.key;
+    first_mrr_start_key_length = mrr_cur_range.start_key.length;
+    if (first_mrr_start_key_length)
+    {
+      if (mrr_key_buff[0].reserve(first_mrr_start_key_length))
+        DBUG_RETURN(HA_ERR_END_OF_FILE);
+      mrr_key_buff[0].q_append((const char *) first_mrr_start_key,
+        first_mrr_start_key_length);
+      mrr_cur_range.start_key.key = (const uchar *) mrr_key_buff[0].ptr();
+    }
+    mrr_key_buff[1].length(0);
+    first_mrr_end_key = mrr_cur_range.end_key.key;
+    first_mrr_end_key_length = mrr_cur_range.end_key.length;
+    if (first_mrr_end_key_length)
+    {
+      if (mrr_key_buff[1].reserve(first_mrr_end_key_length))
+        DBUG_RETURN(HA_ERR_END_OF_FILE);
+      mrr_key_buff[1].q_append((const char *) first_mrr_end_key,
+        first_mrr_end_key_length);
+      mrr_cur_range.end_key.key = (const uchar *) mrr_key_buff[1].ptr();
+    }
+#else
+    multi_range_curr = ranges;
+    multi_range_end = ranges + range_count;
+#endif
+    result_list.tmp_table_join = FALSE;
+    memset(result_list.tmp_table_join_first, 0, share->link_bitmap_size);
+    do
+    {
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+      if ((range_res = mrr_funcs.next(mrr_iter, &mrr_second_range)))
+#else
+      if (multi_range_curr + 1 >= multi_range_end)
+#endif
+      {
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+        have_second_range = FALSE;
+#endif
+        have_multi_range = FALSE;
+      } else {
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+        have_second_range = TRUE;
+#endif
+        have_multi_range = TRUE;
+      }
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+      DBUG_PRINT("info",("spider range_res5=%d", range_res));
+#endif
+      result_list.tmp_reuse_sql = FALSE;
+      if (bka_mode &&
+        have_multi_range &&
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+        !(sql_kinds & SPIDER_SQL_KIND_HS) &&
+#endif
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+        SPIDER_TEST(mrr_cur_range.range_flag & EQ_RANGE)
+#else
+        SPIDER_TEST(multi_range_curr->range_flag & EQ_RANGE)
+#endif
+      ) {
+        if (
+          result_list.tmp_table_join &&
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+          result_list.tmp_table_join_key_part_map ==
+            mrr_cur_range.start_key.keypart_map
+#else
+          result_list.tmp_table_join_key_part_map ==
+            multi_range_curr->start_key.keypart_map
+#endif
+        ) {
+          /* reuse tmp_sql */
+          result_list.tmp_reuse_sql = TRUE;
+        } else {
+          /* create tmp_sql */
+          result_list.tmp_table_join = TRUE;
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+          result_list.tmp_table_join_key_part_map =
+            mrr_cur_range.start_key.keypart_map;
+#else
+          result_list.tmp_table_join_key_part_map =
+            multi_range_curr->start_key.keypart_map;
+#endif
+          if ((error_num = reset_sql_sql(
+            SPIDER_SQL_TYPE_SELECT_SQL | SPIDER_SQL_TYPE_TMP_SQL)))
+            DBUG_RETURN(error_num);
+          if ((sql_kinds & SPIDER_SQL_KIND_SQL))
+          {
+            for (roop_count = 0; roop_count < (int) share->link_count;
+              roop_count++)
+            {
+              result_list.sql_kind_backup[roop_count] = sql_kind[roop_count];
+              sql_kind[roop_count] = SPIDER_SQL_KIND_SQL;
+            }
+            result_list.sql_kinds_backup = sql_kinds;
+            sql_kinds = SPIDER_SQL_KIND_SQL;
+            result_list.have_sql_kind_backup = TRUE;
+          }
+        }
+        memset(result_list.tmp_table_join_first, 0xFF,
+          share->link_bitmap_size);
+      } else {
+        result_list.tmp_table_join = FALSE;
+        if (result_list.have_sql_kind_backup)
+        {
+          for (roop_count = 0; roop_count < (int) share->link_count;
+            roop_count++)
+          {
+            sql_kind[roop_count] =
+              result_list.sql_kind_backup[roop_count];
+          }
+          sql_kinds = result_list.sql_kinds_backup;
+          result_list.have_sql_kind_backup = FALSE;
+        }
+      }
+      result_list.tmp_table_join_break_after_get_next = FALSE;
+
+      if (result_list.tmp_table_join)
+      {
+        result_list.limit_num =
+          result_list.internal_limit >= result_list.split_read ?
+          result_list.split_read : result_list.internal_limit;
+        if (bka_mode == 2)
+        {
+          if (!result_list.tmp_reuse_sql)
+          {
+            if ((error_num = append_union_table_and_sql_for_bka(
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+              &mrr_cur_range.start_key
+#else
+              &multi_range_curr->start_key
+#endif
+            ))) {
+              DBUG_RETURN(error_num);
+            }
+          } else {
+            if ((error_num = reuse_union_table_and_sql_for_bka()))
+            {
+              DBUG_RETURN(error_num);
+            }
+          }
+        } else {
+          if (!result_list.tmp_reuse_sql)
+          {
+            if ((error_num = append_tmp_table_and_sql_for_bka(
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+              &mrr_cur_range.start_key
+#else
+              &multi_range_curr->start_key
+#endif
+            ))) {
+              DBUG_RETURN(error_num);
+            }
+          } else {
+            if ((error_num = reuse_tmp_table_and_sql_for_bka()))
+            {
+              DBUG_RETURN(error_num);
+            }
+          }
+        }
+
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+        do
+#else
+        for (
+          ;
+          multi_range_curr < multi_range_end;
+          multi_range_curr++
+        )
+#endif
+        {
+          if (
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+            !SPIDER_TEST(mrr_cur_range.range_flag & EQ_RANGE) ||
+            result_list.tmp_table_join_key_part_map !=
+              mrr_cur_range.start_key.keypart_map
+#else
+            !SPIDER_TEST(multi_range_curr->range_flag & EQ_RANGE) ||
+            result_list.tmp_table_join_key_part_map !=
+              multi_range_curr->start_key.keypart_map
+#endif
+          ) {
+            result_list.tmp_table_join_break_after_get_next = TRUE;
+            break;
+          }
+
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100000
+          multi_range_keys[multi_range_cnt] = mrr_cur_range.ptr;
+#else
+          multi_range_keys[multi_range_cnt] = (char *) mrr_cur_range.ptr;
+#endif
+#endif
+          if (bka_mode == 2)
+          {
+            if ((error_num = spider_db_append_select(this)))
+              DBUG_RETURN(error_num);
+            if (multi_range_cnt == 0)
+            {
+              if ((error_num = append_multi_range_cnt_with_name_sql_part(
+                SPIDER_SQL_TYPE_SELECT_SQL, multi_range_cnt)))
+                DBUG_RETURN(error_num);
+              if ((error_num = append_key_column_values_with_name_sql_part(
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+                &mrr_cur_range.start_key,
+#else
+                &multi_range_curr->start_key,
+#endif
+                SPIDER_SQL_TYPE_SELECT_SQL)))
+                DBUG_RETURN(error_num);
+            } else {
+              if ((error_num = append_multi_range_cnt_sql_part(
+                SPIDER_SQL_TYPE_SELECT_SQL, multi_range_cnt, TRUE)))
+                DBUG_RETURN(error_num);
+              if ((error_num = append_key_column_values_sql_part(
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+                &mrr_cur_range.start_key,
+#else
+                &multi_range_curr->start_key,
+#endif
+                SPIDER_SQL_TYPE_SELECT_SQL)))
+                DBUG_RETURN(error_num);
+            }
+            if ((error_num = append_union_table_connector_sql_part(
+              SPIDER_SQL_TYPE_SELECT_SQL)))
+              DBUG_RETURN(error_num);
+          } else {
+            if ((error_num = append_multi_range_cnt_sql_part(
+              SPIDER_SQL_TYPE_TMP_SQL, multi_range_cnt, TRUE)))
+              DBUG_RETURN(error_num);
+            if ((error_num = append_key_column_values_sql_part(
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+              &mrr_cur_range.start_key,
+#else
+              &multi_range_curr->start_key,
+#endif
+              SPIDER_SQL_TYPE_TMP_SQL)))
+              DBUG_RETURN(error_num);
+            if ((error_num =
+              append_values_connector_sql_part(SPIDER_SQL_TYPE_TMP_SQL)))
+              DBUG_RETURN(error_num);
+          }
+
+          multi_range_cnt++;
+          if (multi_range_cnt >= (uint) result_list.multi_split_read)
+            break;
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+          if (multi_range_cnt == 1)
+          {
+            if (have_multi_range)
+            {
+              memcpy(&mrr_cur_range, &mrr_second_range,
+                sizeof(KEY_MULTI_RANGE));
+              have_second_range = FALSE;
+              range_res = 0;
+            } else {
+              range_res = 1;
+            }
+          } else {
+            range_res = mrr_funcs.next(mrr_iter, &mrr_cur_range);
+            DBUG_PRINT("info",("spider range_res6=%d", range_res));
+          }
+#endif
+        }
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+        while (!range_res);
+#endif
+        if (bka_mode == 2)
+        {
+          if ((error_num = append_union_table_terminator_sql_part(
+            SPIDER_SQL_TYPE_SELECT_SQL)))
+            DBUG_RETURN(error_num);
+        } else {
+          if ((error_num =
+            append_values_terminator_sql_part(SPIDER_SQL_TYPE_TMP_SQL)))
+            DBUG_RETURN(error_num);
+        }
+        result_list.use_union = FALSE;
+
+        if ((error_num = append_limit_sql_part(
+          result_list.internal_offset,
+          result_list.limit_num,
+          SPIDER_SQL_TYPE_SELECT_SQL)))
+        {
+          DBUG_RETURN(error_num);
+        }
+        if (
+          (error_num = append_select_lock_sql_part(
+            SPIDER_SQL_TYPE_SELECT_SQL))
+        ) {
+          DBUG_RETURN(error_num);
+        }
+      } else {
+        result_list.limit_num = result_list.internal_limit;
+        result_list.split_read = result_list.internal_limit;
+        if (
+          (error_num = init_union_table_name_pos_sql()) ||
+          (error_num = append_union_all_start_sql_part(
+            SPIDER_SQL_TYPE_SELECT_SQL))
+        )
+          DBUG_RETURN(error_num);
+
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+        do
+#else
+        for (
+          ;
+          multi_range_curr < multi_range_end;
+          multi_range_curr++
+        )
+#endif
+        {
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+          DBUG_PRINT("info",("spider range_res7=%d", range_res));
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100000
+          multi_range_keys[multi_range_cnt] = mrr_cur_range.ptr;
+#else
+          multi_range_keys[multi_range_cnt] = (char *) mrr_cur_range.ptr;
+#endif
+#endif
+          if ((error_num = spider_db_append_select(this)))
+            DBUG_RETURN(error_num);
+          if ((error_num = append_multi_range_cnt_sql_part(
+            SPIDER_SQL_TYPE_SELECT_SQL, multi_range_cnt, TRUE)))
+            DBUG_RETURN(error_num);
+          if (
+            (error_num = spider_db_append_select_columns(this)) ||
+            (error_num = set_union_table_name_pos_sql())
+          )
+            DBUG_RETURN(error_num);
+          wide_handler->high_priority = FALSE;
+          if (
+            share->key_hint &&
+            (error_num = append_hint_after_table_sql_part(
+              SPIDER_SQL_TYPE_SELECT_SQL))
+          )
+            DBUG_RETURN(error_num);
+          set_where_pos_sql(SPIDER_SQL_TYPE_SELECT_SQL);
+          DBUG_PRINT("info",("spider internal_offset=%lld",
+            result_list.internal_offset));
+          DBUG_PRINT("info",("spider limit_num=%lld", result_list.limit_num));
+          if (
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+            (error_num = spider_db_append_key_where(
+              &mrr_cur_range.start_key,
+              SPIDER_TEST(mrr_cur_range.range_flag & EQ_RANGE) ?
+              NULL : &mrr_cur_range.end_key, this))
+#else
+            (error_num = spider_db_append_key_where(
+              &multi_range_curr->start_key,
+              SPIDER_TEST(multi_range_curr->range_flag & EQ_RANGE) ?
+              NULL : &multi_range_curr->end_key, this))
+#endif
+          )
+            DBUG_RETURN(error_num);
+          if (result_list.direct_order_limit)
+          {
+            if ((error_num =
+              append_key_order_for_direct_order_limit_with_alias_sql_part(
+                NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
+              DBUG_RETURN(error_num);
+          } else {
+            if ((error_num = append_key_order_with_alias_sql_part(
+              NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
+              DBUG_RETURN(error_num);
+          }
+          if ((error_num = append_limit_sql_part(
+            0,
+            result_list.internal_offset + result_list.limit_num,
+            SPIDER_SQL_TYPE_SELECT_SQL)))
+          {
+            DBUG_RETURN(error_num);
+          }
+          if (
+            (error_num = append_select_lock_sql_part(
+              SPIDER_SQL_TYPE_SELECT_SQL))
+          )
+            DBUG_RETURN(error_num);
+          if ((error_num = append_union_all_sql_part(
+            SPIDER_SQL_TYPE_SELECT_SQL)))
+            DBUG_RETURN(error_num);
+          multi_range_cnt++;
+          if (multi_range_cnt >= (uint) result_list.multi_split_read)
+            break;
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+          if (multi_range_cnt == 1)
+          {
+            if (have_multi_range)
+            {
+              memcpy(&mrr_cur_range, &mrr_second_range,
+                sizeof(KEY_MULTI_RANGE));
+              have_second_range = FALSE;
+              range_res = 0;
+            } else {
+              range_res = 1;
+            }
+          } else {
+            range_res = mrr_funcs.next(mrr_iter, &mrr_cur_range);
+            DBUG_PRINT("info",("spider range_res8=%d", range_res));
+          }
+#endif
+          if (check_no_where_cond())
+          {
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+            range_res = 1;
+#else
+            multi_range_curr = multi_range_end;
+#endif
+            break;
+          }
+        }
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+        while (!range_res);
+#endif
+        wide_handler->high_priority = tmp_high_priority;
+        if ((error_num = append_union_all_end_sql_part(
+          SPIDER_SQL_TYPE_SELECT_SQL)))
+          DBUG_RETURN(error_num);
+        result_list.use_union = TRUE;
+
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+        bool direct_aggregate_backup = result_list.direct_aggregate;
+        result_list.direct_aggregate = FALSE;
+#endif
+        if (result_list.direct_order_limit)
+        {
+          if ((error_num =
+            append_key_order_for_direct_order_limit_with_alias_sql_part(
+              NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
+            DBUG_RETURN(error_num);
+        } else {
+          if ((error_num = append_key_order_with_alias_sql_part(
+            NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
+            DBUG_RETURN(error_num);
+        }
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+        result_list.direct_aggregate = direct_aggregate_backup;
+#endif
+        if ((error_num = append_limit_sql_part(
+          result_list.internal_offset,
+          result_list.limit_num,
+          SPIDER_SQL_TYPE_SELECT_SQL)))
+        {
+          DBUG_RETURN(error_num);
+        }
+      }
+
+      int roop_start, roop_end, roop_count, tmp_lock_mode, link_ok;
+      tmp_lock_mode = spider_conn_lock_mode(this);
+      if (tmp_lock_mode)
+      {
+        /* "for update" or "lock in share mode" */
+        link_ok = spider_conn_link_idx_next(share->link_statuses,
+          conn_link_idx, -1, share->link_count,
+          SPIDER_LINK_STATUS_OK);
+        roop_start = spider_conn_link_idx_next(share->link_statuses,
+          conn_link_idx, -1, share->link_count,
+          SPIDER_LINK_STATUS_RECOVERY);
+        roop_end = share->link_count;
+      } else {
+        link_ok = search_link_idx;
+        roop_start = search_link_idx;
+        roop_end = search_link_idx + 1;
+      }
+
+      for (roop_count = roop_start; roop_count < roop_end;
+        roop_count = spider_conn_link_idx_next(share->link_statuses,
+          conn_link_idx, roop_count, share->link_count,
+          SPIDER_LINK_STATUS_RECOVERY)
+      ) {
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+        if (result_list.bgs_phase > 0)
+        {
+          if ((error_num = spider_check_and_init_casual_read(
+            wide_handler->trx->thd, this,
+            roop_count)))
+            DBUG_RETURN(error_num);
+          if ((error_num = spider_bg_conn_search(this, roop_count, roop_start,
+            TRUE, FALSE, (roop_count != link_ok))))
+          {
+            if (
+              error_num != HA_ERR_END_OF_FILE &&
+              share->monitoring_kind[roop_count] &&
+              need_mons[roop_count]
+            ) {
+              error_num = spider_ping_table_mon_from_table(
+                  wide_handler->trx,
+                  wide_handler->trx->thd,
+                  share,
+                  roop_count,
+                  (uint32) share->monitoring_sid[roop_count],
+                  share->table_name,
+                  share->table_name_length,
+                  conn_link_idx[roop_count],
+                  NULL,
+                  0,
+                  share->monitoring_kind[roop_count],
+                  share->monitoring_limit[roop_count],
+                  share->monitoring_flag[roop_count],
+                  TRUE
+                );
+            }
+            break;
+          }
+        } else {
+#endif
+          ulong sql_type;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+          if (conn_kind[roop_count] == SPIDER_CONN_KIND_MYSQL)
+          {
+#endif
+            conn = conns[roop_count];
+            if (sql_kind[roop_count] == SPIDER_SQL_KIND_SQL)
+            {
+              sql_type = SPIDER_SQL_TYPE_SELECT_SQL | SPIDER_SQL_TYPE_TMP_SQL;
+            } else {
+              sql_type = SPIDER_SQL_TYPE_HANDLER;
+            }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+          } else {
+            if (conn_kind[roop_count] == SPIDER_CONN_KIND_HS_READ)
+              conn = hs_r_conns[roop_count];
+            else
+              conn = hs_w_conns[roop_count];
+            sql_type = SPIDER_SQL_TYPE_SELECT_HS;
+          }
+#endif
+          spider_db_handler *dbton_hdl = dbton_handler[conn->dbton_id];
+          pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+          if (dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+          {
+            pthread_mutex_lock(&conn->mta_conn_mutex);
+            SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          }
+          if ((error_num =
+            dbton_hdl->set_sql_for_exec(sql_type, roop_count)))
+          {
+            if (dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+            {
+              SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+              pthread_mutex_unlock(&conn->mta_conn_mutex);
+            }
+            DBUG_RETURN(error_num);
+          }
+          if (!dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+          {
+            pthread_mutex_lock(&conn->mta_conn_mutex);
+            SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          }
+          sql_type &= ~SPIDER_SQL_TYPE_TMP_SQL;
+          DBUG_PRINT("info",("spider sql_type=%lu", sql_type));
+#ifdef HA_CAN_BULK_ACCESS
+          if (is_bulk_access_clone)
+          {
+            connection_ids[roop_count] = conn->connection_id;
+            spider_trx_add_bulk_access_conn(wide_handler->trx, conn);
+            SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+            pthread_mutex_unlock(&conn->mta_conn_mutex);
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+            *range_info = multi_range_keys[multi_range_hit_point];
+#else
+            *found_range_p = &multi_range_ranges[multi_range_hit_point];
+#endif
+            DBUG_RETURN(0);
+          } else {
+#endif
+            conn->need_mon = &need_mons[roop_count];
+            DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+            DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+            conn->mta_conn_mutex_lock_already = TRUE;
+            conn->mta_conn_mutex_unlock_later = TRUE;
+            if ((error_num = spider_db_set_names(this, conn,
+              roop_count)))
+            {
+              DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+              DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+              conn->mta_conn_mutex_lock_already = FALSE;
+              conn->mta_conn_mutex_unlock_later = FALSE;
+              SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+              pthread_mutex_unlock(&conn->mta_conn_mutex);
+              if (
+                share->monitoring_kind[roop_count] &&
+                need_mons[roop_count]
+              ) {
+                error_num = spider_ping_table_mon_from_table(
+                    wide_handler->trx,
+                    wide_handler->trx->thd,
+                    share,
+                    roop_count,
+                    (uint32) share->monitoring_sid[roop_count],
+                    share->table_name,
+                    share->table_name_length,
+                    conn_link_idx[roop_count],
+                    NULL,
+                    0,
+                    share->monitoring_kind[roop_count],
+                    share->monitoring_limit[roop_count],
+                    share->monitoring_flag[roop_count],
+                    TRUE
+                  );
+              }
+              break;
+            }
+            if (
+              result_list.tmp_table_join && bka_mode != 2 &&
+              spider_bit_is_set(result_list.tmp_table_join_first, roop_count)
+            ) {
+              spider_clear_bit(result_list.tmp_table_join_first, roop_count);
+              spider_set_bit(result_list.tmp_table_created, roop_count);
+              result_list.tmp_tables_created = TRUE;
+              spider_conn_set_timeout_from_share(conn, roop_count,
+                wide_handler->trx->thd, share);
+              if (dbton_hdl->execute_sql(
+                SPIDER_SQL_TYPE_TMP_SQL,
+                conn,
+                -1,
+                &need_mons[roop_count])
+              ) {
+                DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+                DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+                conn->mta_conn_mutex_lock_already = FALSE;
+                conn->mta_conn_mutex_unlock_later = FALSE;
+                error_num = spider_db_errorno(conn);
+                if (
+                  share->monitoring_kind[roop_count] &&
+                  need_mons[roop_count]
+                ) {
+                  error_num = spider_ping_table_mon_from_table(
+                      wide_handler->trx,
+                      wide_handler->trx->thd,
+                      share,
+                      roop_count,
+                      (uint32) share->monitoring_sid[roop_count],
+                      share->table_name,
+                      share->table_name_length,
+                      conn_link_idx[roop_count],
+                      NULL,
+                      0,
+                      share->monitoring_kind[roop_count],
+                      share->monitoring_limit[roop_count],
+                      share->monitoring_flag[roop_count],
+                      TRUE
+                    );
+                }
+                break;
+              }
+              spider_db_discard_multiple_result(this, roop_count, conn);
+            }
+            spider_conn_set_timeout_from_share(conn, roop_count,
+              wide_handler->trx->thd, share);
+            if (dbton_hdl->execute_sql(
+              sql_type,
+              conn,
+              result_list.quick_mode,
+              &need_mons[roop_count])
+            ) {
+              DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+              DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+              conn->mta_conn_mutex_lock_already = FALSE;
+              conn->mta_conn_mutex_unlock_later = FALSE;
+              error_num = spider_db_errorno(conn);
+              if (
+                share->monitoring_kind[roop_count] &&
+                need_mons[roop_count]
+              ) {
+                error_num = spider_ping_table_mon_from_table(
+                    wide_handler->trx,
+                    wide_handler->trx->thd,
+                    share,
+                    roop_count,
+                    (uint32) share->monitoring_sid[roop_count],
+                    share->table_name,
+                    share->table_name_length,
+                    conn_link_idx[roop_count],
+                    NULL,
+                    0,
+                    share->monitoring_kind[roop_count],
+                    share->monitoring_limit[roop_count],
+                    share->monitoring_flag[roop_count],
+                    TRUE
+                  );
+              }
+              break;
+            }
+            connection_ids[roop_count] = conn->connection_id;
+            DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+            DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+            conn->mta_conn_mutex_lock_already = FALSE;
+            conn->mta_conn_mutex_unlock_later = FALSE;
+            if (roop_count == link_ok)
+            {
+              if ((error_num = spider_db_store_result(this, roop_count, table)))
+              {
+                if (
+                  error_num != HA_ERR_END_OF_FILE &&
+                  share->monitoring_kind[roop_count] &&
+                  need_mons[roop_count]
+                ) {
+                  error_num = spider_ping_table_mon_from_table(
+                      wide_handler->trx,
+                      wide_handler->trx->thd,
+                      share,
+                      roop_count,
+                      (uint32) share->monitoring_sid[roop_count],
+                      share->table_name,
+                      share->table_name_length,
+                      conn_link_idx[roop_count],
+                      NULL,
+                      0,
+                      share->monitoring_kind[roop_count],
+                      share->monitoring_limit[roop_count],
+                      share->monitoring_flag[roop_count],
+                      TRUE
+                    );
+                }
+                break;
+              }
+              result_link_idx = link_ok;
+            } else {
+              spider_db_discard_result(this, roop_count, conn);
+              SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+              pthread_mutex_unlock(&conn->mta_conn_mutex);
+            }
+#ifdef HA_CAN_BULK_ACCESS
+          }
+#endif
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+        }
+#endif
+      }
+      if (error_num)
+      {
+        if (
+          error_num != HA_ERR_END_OF_FILE &&
+          !check_error_mode(error_num)
+        )
+          error_num = HA_ERR_END_OF_FILE;
+        if (error_num == HA_ERR_END_OF_FILE)
+        {
+          if (multi_range_cnt >= (uint) result_list.multi_split_read)
+          {
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+            range_res = mrr_funcs.next(mrr_iter, &mrr_cur_range);
+            DBUG_PRINT("info",("spider range_res9=%d", range_res));
+#else
+            multi_range_curr++;
+#endif
+          }
+          if (
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+            range_res
+#else
+            multi_range_curr == multi_range_end
+#endif
+          ) {
+            table->status = STATUS_NOT_FOUND;
+            DBUG_RETURN(error_num);
+          }
+
+          DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
+          result_list.finish_flg = FALSE;
+          result_list.record_num = 0;
+          if (result_list.current)
+          {
+            DBUG_PRINT("info",
+              ("spider result_list.current->finish_flg = FALSE"));
+            result_list.current->finish_flg = FALSE;
+            spider_db_free_one_result(&result_list,
+              (SPIDER_RESULT *) result_list.current);
+            if (result_list.current == result_list.first)
+              result_list.current = NULL;
+            else
+              result_list.current = result_list.current->prev;
+          }
+          error_num = 0;
+        } else
+          DBUG_RETURN(error_num);
+      } else {
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+        if (!range_info)
+          DBUG_RETURN(0);
+        if (!(error_num = spider_db_fetch(table->record[0], this, table)))
+#else
+        if (!buf || !(error_num = spider_db_fetch(buf, this, table)))
+#endif
+        {
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+          *range_info = multi_range_keys[multi_range_hit_point];
+#else
+          *found_range_p = &multi_range_ranges[multi_range_hit_point];
+#endif
+          DBUG_RETURN(0);
+        }
+        if (
+          error_num != HA_ERR_END_OF_FILE &&
+          !check_error_mode(error_num)
+        )
+          error_num = HA_ERR_END_OF_FILE;
+        if (error_num == HA_ERR_END_OF_FILE)
+        {
+          if (multi_range_cnt >= (uint) result_list.multi_split_read)
+          {
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+            range_res = mrr_funcs.next(mrr_iter, &mrr_cur_range);
+            DBUG_PRINT("info",("spider range_res10=%d", range_res));
+#else
+            multi_range_curr++;
+#endif
+          }
+          if (
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+            range_res
+#else
+            multi_range_curr == multi_range_end
+#endif
+          ) {
+            table->status = STATUS_NOT_FOUND;
+            DBUG_RETURN(error_num);
+          }
+
+          DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
+          result_list.finish_flg = FALSE;
+          result_list.record_num = 0;
+          if (result_list.current)
+          {
+            DBUG_PRINT("info",
+              ("spider result_list.current->finish_flg = FALSE"));
+            result_list.current->finish_flg = FALSE;
+            spider_db_free_one_result(&result_list,
+              (SPIDER_RESULT *) result_list.current);
+            if (result_list.current == result_list.first)
+              result_list.current = NULL;
+            else
+              result_list.current = result_list.current->prev;
+          }
+          error_num = 0;
+        } else
+          DBUG_RETURN(error_num);
+      }
+      if (check_no_where_cond())
+      {
+        DBUG_RETURN(check_error_mode_eof(0));
+      }
+      multi_range_cnt = 0;
+      if ((error_num = reset_sql_sql(
+        SPIDER_SQL_TYPE_SELECT_SQL | SPIDER_SQL_TYPE_HANDLER)))
+        DBUG_RETURN(error_num);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      if ((error_num = reset_hs_keys(SPIDER_SQL_TYPE_SELECT_HS)))
+        DBUG_RETURN(error_num);
+#endif
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+#else
+      multi_range_ranges = multi_range_curr;
+#endif
+    } while (!error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+int ha_spider::pre_multi_range_read_next(
+  bool use_parallel
+) {
+  DBUG_ENTER("ha_spider::pre_multi_range_read_next");
+  DBUG_PRINT("info",("spider this=%p", this));
+  check_pre_call(use_parallel);
+  if (use_pre_call)
+  {
+    store_error_num =
+      multi_range_read_next_first(NULL);
+    DBUG_RETURN(store_error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100000
+int ha_spider::multi_range_read_next(
+  range_id_t *range_info
+)
+#else
+int ha_spider::multi_range_read_next(
+  char **range_info
+)
+#endif
+{
+  int error_num;
+  DBUG_ENTER("ha_spider::multi_range_read_next");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (use_pre_call)
+  {
+    if (store_error_num)
+    {
+      if (store_error_num == HA_ERR_END_OF_FILE)
+        table->status = STATUS_NOT_FOUND;
+      DBUG_RETURN(store_error_num);
+    }
+    if ((error_num = spider_bg_all_conn_pre_next(this, search_link_idx)))
+      DBUG_RETURN(error_num);
+    use_pre_call = FALSE;
+    mrr_have_range = TRUE;
+    DBUG_RETURN(multi_range_read_next_next(range_info));
+  }
+  if (!mrr_have_range)
+  {
+    error_num = multi_range_read_next_first(range_info);
+    mrr_have_range = TRUE;
+  } else
+    error_num = multi_range_read_next_next(range_info);
+  DBUG_RETURN(error_num);
+}
+#else
+int ha_spider::pre_read_multi_range_first(
+  KEY_MULTI_RANGE **found_range_p,
+  KEY_MULTI_RANGE *ranges,
+  uint range_count,
+  bool sorted,
+  HANDLER_BUFFER *buffer,
+  bool use_parallel
+) {
+  DBUG_ENTER("ha_spider::pre_read_multi_range_first");
+  DBUG_PRINT("info",("spider this=%p", this));
+  check_pre_call(use_parallel);
+  if (use_pre_call)
+  {
+    store_error_num =
+      read_multi_range_first_internal(NULL, found_range_p, ranges,
+        range_count, sorted, buffer);
+    DBUG_RETURN(store_error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::read_multi_range_first(
+  KEY_MULTI_RANGE **found_range_p,
+  KEY_MULTI_RANGE *ranges,
+  uint range_count,
+  bool sorted,
+  HANDLER_BUFFER *buffer
+) {
+  int error_num;
+  DBUG_ENTER("ha_spider::read_multi_range_first");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (use_pre_call)
+  {
+    if (store_error_num)
+    {
+      if (store_error_num == HA_ERR_END_OF_FILE)
+        table->status = STATUS_NOT_FOUND;
+      DBUG_RETURN(store_error_num);
+    }
+    if ((error_num = spider_bg_all_conn_pre_next(this, search_link_idx)))
+      DBUG_RETURN(error_num);
+    use_pre_call = FALSE;
+    DBUG_RETURN(read_multi_range_next(found_range_p));
+  }
+  DBUG_RETURN(read_multi_range_first_internal(table->record[0], found_range_p,
+    ranges, range_count, sorted, buffer));
+}
+#endif
+
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100000
+int ha_spider::multi_range_read_next_next(
+  range_id_t *range_info
+)
+#else
+int ha_spider::multi_range_read_next_next(
+  char **range_info
+)
+#endif
+#else
+int ha_spider::read_multi_range_next(
+  KEY_MULTI_RANGE **found_range_p
+)
+#endif
+{
+  int error_num, roop_count;
+  SPIDER_CONN *conn;
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+  int range_res;
+  backup_error_status();
+  DBUG_ENTER("ha_spider::multi_range_read_next_next");
+#else
+  backup_error_status();
+  DBUG_ENTER("ha_spider::read_multi_range_next");
+#endif
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (wide_handler->trx->thd->killed)
+  {
+    my_error(ER_QUERY_INTERRUPTED, MYF(0));
+    DBUG_RETURN(ER_QUERY_INTERRUPTED);
+  }
+  if (is_clone)
+  {
+    DBUG_PRINT("info",("spider set pt_clone_last_searcher to %p",
+      pt_clone_source_handler));
+    pt_clone_source_handler->pt_clone_last_searcher = this;
+  }
+  if (
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+    multi_range_num == 1 ||
+#endif
+    result_list.multi_split_read <= 1 ||
+    (sql_kinds & SPIDER_SQL_KIND_HANDLER)
+  ) {
+    if (!(error_num = spider_db_seek_next(table->record[0], this,
+      search_link_idx, table)))
+    {
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+      *range_info = (char *) mrr_cur_range.ptr;
+#else
+      *found_range_p = multi_range_curr;
+#endif
+      DBUG_RETURN(0);
+    }
+
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+    range_res = mrr_funcs.next(mrr_iter, &mrr_cur_range);
+    DBUG_PRINT("info",("spider range_res1=%d", range_res));
+#else
+    multi_range_curr++;
+#endif
+    if (
+      error_num != HA_ERR_END_OF_FILE &&
+      !check_error_mode(error_num)
+    )
+      error_num = HA_ERR_END_OF_FILE;
+    if (
+      error_num != HA_ERR_END_OF_FILE ||
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+      range_res
+#else
+      multi_range_curr == multi_range_end
+#endif
+    )
+      DBUG_RETURN(error_num);
+    spider_db_free_one_result_for_start_next(this);
+    spider_first_split_read_param(this);
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+    if ((error_num = spider_set_conn_bg_param(this)))
+      DBUG_RETURN(error_num);
+#endif
+    DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
+    result_list.finish_flg = FALSE;
+    if (result_list.current)
+    {
+      DBUG_PRINT("info",("spider result_list.current->finish_flg = FALSE"));
+      result_list.current->finish_flg = FALSE;
+    }
+    result_list.record_num = 0;
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+    do
+#else
+    for (
+      ;
+      multi_range_curr < multi_range_end;
+      multi_range_curr++
+    )
+#endif
+    {
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+      DBUG_PRINT("info",("spider range_res2=%d", range_res));
+#endif
+      if (check_no_where_cond())
+      {
+        DBUG_RETURN(check_error_mode_eof(0));
+      }
+      set_where_to_pos_sql(SPIDER_SQL_TYPE_SELECT_SQL);
+      set_where_to_pos_sql(SPIDER_SQL_TYPE_HANDLER);
+      result_list.limit_num =
+        result_list.internal_limit - result_list.record_num >=
+        result_list.split_read ?
+        result_list.split_read :
+        result_list.internal_limit - result_list.record_num;
+      if (
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+        (error_num = spider_db_append_key_where(
+          &mrr_cur_range.start_key,
+          SPIDER_TEST(mrr_cur_range.range_flag & EQ_RANGE) ?
+          NULL : &mrr_cur_range.end_key, this))
+#else
+        (error_num = spider_db_append_key_where(
+          &multi_range_curr->start_key,
+          SPIDER_TEST(multi_range_curr->range_flag & EQ_RANGE) ?
+          NULL : &multi_range_curr->end_key, this))
+#endif
+      )
+        DBUG_RETURN(error_num);
+      if (sql_kinds & SPIDER_SQL_KIND_SQL)
+      {
+        if (result_list.direct_order_limit)
+        {
+          if ((error_num =
+            append_key_order_for_direct_order_limit_with_alias_sql_part(
+              NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
+            DBUG_RETURN(error_num);
+        } else {
+          if ((error_num = append_key_order_with_alias_sql_part(
+            NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
+            DBUG_RETURN(error_num);
+        }
+        if ((error_num = append_limit_sql_part(
+          result_list.internal_offset + result_list.record_num,
+          result_list.limit_num,
+          SPIDER_SQL_TYPE_SELECT_SQL)))
+        {
+          DBUG_RETURN(error_num);
+        }
+        if (
+          (error_num = append_select_lock_sql_part(
+            SPIDER_SQL_TYPE_SELECT_SQL))
+        ) {
+          DBUG_RETURN(error_num);
+        }
+      }
+      if (sql_kinds & SPIDER_SQL_KIND_HANDLER)
+      {
+        if ((error_num = append_limit_sql_part(
+          result_list.internal_offset + result_list.record_num,
+          result_list.limit_num,
+          SPIDER_SQL_TYPE_HANDLER)))
+        {
+          DBUG_RETURN(error_num);
+        }
+      }
+
+      int roop_start, roop_end, tmp_lock_mode, link_ok;
+      tmp_lock_mode = spider_conn_lock_mode(this);
+      if (tmp_lock_mode)
+      {
+        /* "for update" or "lock in share mode" */
+        link_ok = spider_conn_link_idx_next(share->link_statuses,
+          conn_link_idx, -1, share->link_count,
+          SPIDER_LINK_STATUS_OK);
+        roop_start = spider_conn_link_idx_next(share->link_statuses,
+          conn_link_idx, -1, share->link_count,
+          SPIDER_LINK_STATUS_RECOVERY);
+        roop_end = share->link_count;
+      } else {
+        link_ok = search_link_idx;
+        roop_start = search_link_idx;
+        roop_end = search_link_idx + 1;
+      }
+      for (roop_count = roop_start; roop_count < roop_end;
+        roop_count = spider_conn_link_idx_next(share->link_statuses,
+          conn_link_idx, roop_count, share->link_count,
+          SPIDER_LINK_STATUS_RECOVERY)
+      ) {
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+        if (result_list.bgs_phase > 0)
+        {
+          if ((error_num = spider_check_and_init_casual_read(
+            wide_handler->trx->thd, this,
+            roop_count)))
+            DBUG_RETURN(error_num);
+          error_num = spider_bg_conn_search(this, roop_count, roop_start,
+            TRUE, FALSE, (roop_count != link_ok));
+          if (
+            error_num &&
+            error_num != HA_ERR_END_OF_FILE &&
+            share->monitoring_kind[roop_count] &&
+            need_mons[roop_count]
+          ) {
+            error_num = spider_ping_table_mon_from_table(
+                wide_handler->trx,
+                wide_handler->trx->thd,
+                share,
+                roop_count,
+                (uint32) share->monitoring_sid[roop_count],
+                share->table_name,
+                share->table_name_length,
+                conn_link_idx[roop_count],
+                NULL,
+                0,
+                share->monitoring_kind[roop_count],
+                share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
+                TRUE
+              );
+          }
+        } else {
+#endif
+          ulong sql_type;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+          if (conn_kind[roop_count] == SPIDER_CONN_KIND_MYSQL)
+          {
+#endif
+            conn = conns[roop_count];
+            if (sql_kind[roop_count] == SPIDER_SQL_KIND_SQL)
+            {
+              sql_type = SPIDER_SQL_TYPE_SELECT_SQL;
+            } else {
+              sql_type = SPIDER_SQL_TYPE_HANDLER;
+            }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+          } else {
+            if (conn_kind[roop_count] == SPIDER_CONN_KIND_HS_READ)
+              conn = hs_r_conns[roop_count];
+            else
+              conn = hs_w_conns[roop_count];
+            sql_type = SPIDER_SQL_TYPE_SELECT_HS;
+          }
+#endif
+          spider_db_handler *dbton_hdl = dbton_handler[conn->dbton_id];
+          pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+          if (dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+          {
+            pthread_mutex_lock(&conn->mta_conn_mutex);
+            SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          }
+          if ((error_num =
+            dbton_hdl->set_sql_for_exec(sql_type, roop_count)))
+          {
+            if (dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+            {
+              SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+              pthread_mutex_unlock(&conn->mta_conn_mutex);
+            }
+            DBUG_RETURN(error_num);
+          }
+          if (!dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+          {
+            pthread_mutex_lock(&conn->mta_conn_mutex);
+            SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          }
+          DBUG_PRINT("info",("spider sql_type=%lu", sql_type));
+#ifdef HA_CAN_BULK_ACCESS
+          if (is_bulk_access_clone)
+          {
+            connection_ids[roop_count] = conn->connection_id;
+            spider_trx_add_bulk_access_conn(wide_handler->trx, conn);
+            SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+            pthread_mutex_unlock(&conn->mta_conn_mutex);
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+            *range_info = multi_range_keys[multi_range_hit_point];
+#else
+            *found_range_p = &multi_range_ranges[multi_range_hit_point];
+#endif
+            DBUG_RETURN(0);
+          } else {
+#endif
+            conn->need_mon = &need_mons[roop_count];
+            DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+            DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+            conn->mta_conn_mutex_lock_already = TRUE;
+            conn->mta_conn_mutex_unlock_later = TRUE;
+            if ((error_num = spider_db_set_names(this, conn,
+              roop_count)))
+            {
+              DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+              DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+              conn->mta_conn_mutex_lock_already = FALSE;
+              conn->mta_conn_mutex_unlock_later = FALSE;
+              SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+              pthread_mutex_unlock(&conn->mta_conn_mutex);
+              if (
+                share->monitoring_kind[roop_count] &&
+                need_mons[roop_count]
+              ) {
+                error_num = spider_ping_table_mon_from_table(
+                    wide_handler->trx,
+                    wide_handler->trx->thd,
+                    share,
+                    roop_count,
+                    (uint32) share->monitoring_sid[roop_count],
+                    share->table_name,
+                    share->table_name_length,
+                    conn_link_idx[roop_count],
+                    NULL,
+                    0,
+                    share->monitoring_kind[roop_count],
+                    share->monitoring_limit[roop_count],
+                    share->monitoring_flag[roop_count],
+                    TRUE
+                  );
+              }
+            }
+            if (!error_num)
+            {
+              spider_conn_set_timeout_from_share(conn, roop_count,
+                wide_handler->trx->thd, share);
+              if (dbton_hdl->execute_sql(
+                sql_type,
+                conn,
+                result_list.quick_mode,
+                &need_mons[roop_count])
+              ) {
+                DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+                DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+                conn->mta_conn_mutex_lock_already = FALSE;
+                conn->mta_conn_mutex_unlock_later = FALSE;
+                error_num = spider_db_errorno(conn);
+                if (
+                  share->monitoring_kind[roop_count] &&
+                  need_mons[roop_count]
+                ) {
+                  error_num = spider_ping_table_mon_from_table(
+                      wide_handler->trx,
+                      wide_handler->trx->thd,
+                      share,
+                      roop_count,
+                      (uint32) share->monitoring_sid[roop_count],
+                      share->table_name,
+                      share->table_name_length,
+                      conn_link_idx[roop_count],
+                      NULL,
+                      0,
+                      share->monitoring_kind[roop_count],
+                      share->monitoring_limit[roop_count],
+                      share->monitoring_flag[roop_count],
+                      TRUE
+                    );
+                }
+              }
+            }
+            if (!error_num)
+            {
+              connection_ids[roop_count] = conn->connection_id;
+              DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+              DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+              conn->mta_conn_mutex_lock_already = FALSE;
+              conn->mta_conn_mutex_unlock_later = FALSE;
+              if (roop_count == link_ok)
+              {
+                error_num = spider_db_store_result(this, roop_count, table);
+                if (
+                  error_num &&
+                  error_num != HA_ERR_END_OF_FILE &&
+                  share->monitoring_kind[roop_count] &&
+                  need_mons[roop_count]
+                ) {
+                  error_num = spider_ping_table_mon_from_table(
+                      wide_handler->trx,
+                      wide_handler->trx->thd,
+                      share,
+                      roop_count,
+                      (uint32) share->monitoring_sid[roop_count],
+                      share->table_name,
+                      share->table_name_length,
+                      conn_link_idx[roop_count],
+                      NULL,
+                      0,
+                      share->monitoring_kind[roop_count],
+                      share->monitoring_limit[roop_count],
+                      share->monitoring_flag[roop_count],
+                      TRUE
+                    );
+                }
+                result_link_idx = link_ok;
+              } else {
+                spider_db_discard_result(this, roop_count, conn);
+                SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+                pthread_mutex_unlock(&conn->mta_conn_mutex);
+              }
+            }
+#ifdef HA_CAN_BULK_ACCESS
+          }
+#endif
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+        }
+#endif
+        if (error_num)
+          break;
+      }
+      if (error_num)
+      {
+        if (
+          error_num != HA_ERR_END_OF_FILE &&
+          !check_error_mode(error_num)
+        )
+          error_num = HA_ERR_END_OF_FILE;
+        if (error_num == HA_ERR_END_OF_FILE)
+        {
+          DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
+          result_list.finish_flg = FALSE;
+          result_list.record_num = 0;
+          if (result_list.current)
+          {
+            DBUG_PRINT("info",
+              ("spider result_list.current->finish_flg = FALSE"));
+            result_list.current->finish_flg = FALSE;
+            spider_db_free_one_result(&result_list,
+              (SPIDER_RESULT *) result_list.current);
+            result_list.current = result_list.current->prev;
+          }
+        } else
+          DBUG_RETURN(error_num);
+      } else {
+        if (!(error_num = spider_db_fetch(table->record[0], this, table)))
+        {
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+          *range_info = (char *) mrr_cur_range.ptr;
+#else
+          *found_range_p = multi_range_curr;
+#endif
+          DBUG_RETURN(check_ha_range_eof());
+        }
+        if (
+          error_num != HA_ERR_END_OF_FILE &&
+          !check_error_mode(error_num)
+        )
+          error_num = HA_ERR_END_OF_FILE;
+        if (error_num == HA_ERR_END_OF_FILE)
+        {
+          DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
+          result_list.finish_flg = FALSE;
+          result_list.record_num = 0;
+          if (result_list.current)
+          {
+            DBUG_PRINT("info",
+              ("spider result_list.current->finish_flg = FALSE"));
+            result_list.current->finish_flg = FALSE;
+            spider_db_free_one_result(&result_list,
+              (SPIDER_RESULT *) result_list.current);
+            result_list.current = result_list.current->prev;
+          }
+        } else
+          DBUG_RETURN(error_num);
+      }
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+      range_res = mrr_funcs.next(mrr_iter, &mrr_cur_range);
+      DBUG_PRINT("info",("spider range_res3=%d", range_res));
+#endif
+    }
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+    while (!range_res);
+#endif
+    if (error_num)
+      DBUG_RETURN(check_error_mode_eof(error_num));
+  } else {
+    if (!(error_num = spider_db_seek_next(table->record[0], this,
+      search_link_idx, table)))
+    {
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+      *range_info = multi_range_keys[multi_range_hit_point];
+#else
+      *found_range_p = &multi_range_ranges[multi_range_hit_point];
+#endif
+      DBUG_RETURN(0);
+    }
+
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+    const uchar *first_mrr_start_key;
+    const uchar *first_mrr_end_key;
+    uint first_mrr_start_key_length;
+    uint first_mrr_end_key_length;
+#endif
+    if (!result_list.tmp_table_join_break_after_get_next)
+    {
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+      range_res = mrr_funcs.next(mrr_iter, &mrr_cur_range);
+      DBUG_PRINT("info",("spider range_res4=%d", range_res));
+      if (!range_res)
+      {
+        mrr_key_buff[0].length(0);
+        first_mrr_start_key = mrr_cur_range.start_key.key;
+        first_mrr_start_key_length = mrr_cur_range.start_key.length;
+        if (first_mrr_start_key_length)
+        {
+          if (mrr_key_buff[0].reserve(first_mrr_start_key_length))
+            DBUG_RETURN(HA_ERR_END_OF_FILE);
+          mrr_key_buff[0].q_append((const char *) first_mrr_start_key,
+            first_mrr_start_key_length);
+          mrr_cur_range.start_key.key = (const uchar *) mrr_key_buff[0].ptr();
+        }
+        mrr_key_buff[1].length(0);
+        first_mrr_end_key = mrr_cur_range.end_key.key;
+        first_mrr_end_key_length = mrr_cur_range.end_key.length;
+        if (first_mrr_end_key_length)
+        {
+          if (mrr_key_buff[1].reserve(first_mrr_end_key_length))
+            DBUG_RETURN(HA_ERR_END_OF_FILE);
+          mrr_key_buff[1].q_append((const char *) first_mrr_end_key,
+            first_mrr_end_key_length);
+          mrr_cur_range.end_key.key = (const uchar *) mrr_key_buff[1].ptr();
+        }
+      }
+#else
+      if (multi_range_curr < multi_range_end)
+        multi_range_curr++;
+#endif
+    } else {
+      result_list.tmp_table_join_break_after_get_next = FALSE;
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+      range_res = 0;
+#endif
+    }
+
+    if (
+      error_num != HA_ERR_END_OF_FILE &&
+      !check_error_mode(error_num)
+    )
+      error_num = HA_ERR_END_OF_FILE;
+    if (
+      error_num != HA_ERR_END_OF_FILE ||
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+      range_res
+#else
+      multi_range_curr == multi_range_end
+#endif
+    )
+      DBUG_RETURN(error_num);
+    if (check_no_where_cond())
+    {
+      DBUG_RETURN(check_error_mode_eof(0));
+    }
+    spider_db_free_one_result_for_start_next(this);
+    spider_first_split_read_param(this);
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+    if ((error_num = spider_set_conn_bg_param(this)))
+      DBUG_RETURN(error_num);
+#endif
+    DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
+    result_list.finish_flg = FALSE;
+    if (result_list.current)
+    {
+      DBUG_PRINT("info",("spider result_list.current->finish_flg = FALSE"));
+      result_list.current->finish_flg = FALSE;
+    }
+    result_list.record_num = 0;
+
+    if ((error_num = reset_sql_sql(
+      SPIDER_SQL_TYPE_SELECT_SQL | SPIDER_SQL_TYPE_HANDLER)))
+      DBUG_RETURN(error_num);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    if ((error_num = reset_hs_keys(SPIDER_SQL_TYPE_SELECT_HS)))
+      DBUG_RETURN(error_num);
+#endif
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+#else
+    multi_range_ranges = multi_range_curr;
+#endif
+
+    bool tmp_high_priority = wide_handler->high_priority;
+    bool have_multi_range;
+    multi_range_cnt = 0;
+    error_num = 0;
+    do
+    {
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+      if (
+        !have_second_range &&
+        (range_res = mrr_funcs.next(mrr_iter, &mrr_second_range))
+      )
+#else
+      if (multi_range_curr + 1 >= multi_range_end)
+#endif
+      {
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+        have_second_range = FALSE;
+#endif
+        have_multi_range = FALSE;
+      } else {
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+        have_second_range = TRUE;
+#endif
+        have_multi_range = TRUE;
+      }
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+      DBUG_PRINT("info",("spider range_res5=%d", range_res));
+#endif
+      result_list.tmp_reuse_sql = FALSE;
+      if (bka_mode &&
+        have_multi_range &&
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+        !(sql_kinds & SPIDER_SQL_KIND_HS) &&
+#endif
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+        SPIDER_TEST(mrr_cur_range.range_flag & EQ_RANGE)
+#else
+        SPIDER_TEST(multi_range_curr->range_flag & EQ_RANGE)
+#endif
+      ) {
+        if (
+          result_list.tmp_table_join &&
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+          result_list.tmp_table_join_key_part_map ==
+            mrr_cur_range.start_key.keypart_map
+#else
+          result_list.tmp_table_join_key_part_map ==
+            multi_range_curr->start_key.keypart_map
+#endif
+        ) {
+          /* reuse tmp_sql */
+          result_list.tmp_reuse_sql = TRUE;
+        } else {
+          /* create tmp_sql */
+          result_list.tmp_table_join = TRUE;
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+          result_list.tmp_table_join_key_part_map =
+            mrr_cur_range.start_key.keypart_map;
+#else
+          result_list.tmp_table_join_key_part_map =
+            multi_range_curr->start_key.keypart_map;
+#endif
+          if ((error_num = reset_sql_sql(
+            SPIDER_SQL_TYPE_SELECT_SQL | SPIDER_SQL_TYPE_TMP_SQL)))
+            DBUG_RETURN(error_num);
+          if ((sql_kinds & SPIDER_SQL_KIND_SQL))
+          {
+            for (roop_count = 0; roop_count < (int) share->link_count;
+              roop_count++)
+            {
+              result_list.sql_kind_backup[roop_count] = sql_kind[roop_count];
+              sql_kind[roop_count] = SPIDER_SQL_KIND_SQL;
+            }
+            result_list.sql_kinds_backup = sql_kinds;
+            sql_kinds = SPIDER_SQL_KIND_SQL;
+            result_list.have_sql_kind_backup = TRUE;
+          }
+        }
+        memset(result_list.tmp_table_join_first, 0xFF,
+          share->link_bitmap_size);
+      } else {
+        result_list.tmp_table_join = FALSE;
+        if (result_list.have_sql_kind_backup)
+        {
+          for (roop_count = 0; roop_count < (int) share->link_count;
+            roop_count++)
+          {
+            sql_kind[roop_count] =
+              result_list.sql_kind_backup[roop_count];
+          }
+          sql_kinds = result_list.sql_kinds_backup;
+          result_list.have_sql_kind_backup = FALSE;
+        }
+      }
+
+      if (result_list.tmp_table_join)
+      {
+        result_list.limit_num =
+          result_list.internal_limit - result_list.record_num >=
+          result_list.split_read ?
+          result_list.split_read :
+          result_list.internal_limit - result_list.record_num;
+        if (bka_mode == 2)
+        {
+          if (!result_list.tmp_reuse_sql)
+          {
+            if ((error_num = append_union_table_and_sql_for_bka(
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+              &mrr_cur_range.start_key
+#else
+              &multi_range_curr->start_key
+#endif
+            ))) {
+              DBUG_RETURN(error_num);
+            }
+          } else {
+            if ((error_num = reuse_union_table_and_sql_for_bka()))
+            {
+              DBUG_RETURN(error_num);
+            }
+          }
+        } else {
+          if (!result_list.tmp_reuse_sql)
+          {
+            if ((error_num = append_tmp_table_and_sql_for_bka(
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+              &mrr_cur_range.start_key
+#else
+              &multi_range_curr->start_key
+#endif
+            ))) {
+              DBUG_RETURN(error_num);
+            }
+          } else {
+            if ((error_num = reuse_tmp_table_and_sql_for_bka()))
+            {
+              DBUG_RETURN(error_num);
+            }
+          }
+        }
+
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+        do
+#else
+        for (
+          ;
+          multi_range_curr < multi_range_end;
+          multi_range_curr++
+        )
+#endif
+        {
+          if (
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+            !SPIDER_TEST(mrr_cur_range.range_flag & EQ_RANGE) ||
+            result_list.tmp_table_join_key_part_map !=
+              mrr_cur_range.start_key.keypart_map
+#else
+            !SPIDER_TEST(multi_range_curr->range_flag & EQ_RANGE) ||
+            result_list.tmp_table_join_key_part_map !=
+              multi_range_curr->start_key.keypart_map
+#endif
+          ) {
+            result_list.tmp_table_join_break_after_get_next = TRUE;
+            break;
+          }
+
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100000
+          multi_range_keys[multi_range_cnt] = mrr_cur_range.ptr;
+#else
+          multi_range_keys[multi_range_cnt] = (char *) mrr_cur_range.ptr;
+#endif
+#endif
+          if (bka_mode == 2)
+          {
+            if ((error_num = spider_db_append_select(this)))
+              DBUG_RETURN(error_num);
+            if (multi_range_cnt == 0)
+            {
+              if ((error_num = append_multi_range_cnt_with_name_sql_part(
+                SPIDER_SQL_TYPE_SELECT_SQL, multi_range_cnt)))
+                DBUG_RETURN(error_num);
+              if ((error_num = append_key_column_values_with_name_sql_part(
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+                &mrr_cur_range.start_key,
+#else
+                &multi_range_curr->start_key,
+#endif
+                SPIDER_SQL_TYPE_SELECT_SQL)))
+                DBUG_RETURN(error_num);
+            } else {
+              if ((error_num = append_multi_range_cnt_sql_part(
+                SPIDER_SQL_TYPE_SELECT_SQL, multi_range_cnt, TRUE)))
+                DBUG_RETURN(error_num);
+              if ((error_num = append_key_column_values_sql_part(
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+                &mrr_cur_range.start_key,
+#else
+                &multi_range_curr->start_key,
+#endif
+                SPIDER_SQL_TYPE_SELECT_SQL)))
+                DBUG_RETURN(error_num);
+            }
+            if ((error_num = append_union_table_connector_sql_part(
+              SPIDER_SQL_TYPE_SELECT_SQL)))
+              DBUG_RETURN(error_num);
+          } else {
+            if ((error_num = append_multi_range_cnt_sql_part(
+              SPIDER_SQL_TYPE_TMP_SQL, multi_range_cnt, TRUE)))
+              DBUG_RETURN(error_num);
+            if ((error_num = append_key_column_values_sql_part(
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+              &mrr_cur_range.start_key,
+#else
+              &multi_range_curr->start_key,
+#endif
+              SPIDER_SQL_TYPE_TMP_SQL)))
+              DBUG_RETURN(error_num);
+
+            if ((error_num =
+              append_values_connector_sql_part(SPIDER_SQL_TYPE_TMP_SQL)))
+              DBUG_RETURN(error_num);
+          }
+          multi_range_cnt++;
+          if (multi_range_cnt >= (uint) result_list.multi_split_read)
+            break;
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+          if (multi_range_cnt == 1)
+          {
+            if (have_multi_range)
+            {
+              memcpy(&mrr_cur_range, &mrr_second_range,
+                sizeof(KEY_MULTI_RANGE));
+              have_second_range = FALSE;
+              range_res = 0;
+            } else {
+              range_res = 1;
+            }
+          } else {
+            range_res = mrr_funcs.next(mrr_iter, &mrr_cur_range);
+            DBUG_PRINT("info",("spider range_res6=%d", range_res));
+          }
+#endif
+        }
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+        while (!range_res);
+#endif
+        if (bka_mode == 2)
+        {
+          if ((error_num = append_union_table_terminator_sql_part(
+            SPIDER_SQL_TYPE_SELECT_SQL)))
+            DBUG_RETURN(error_num);
+        } else {
+          if ((error_num =
+            append_values_terminator_sql_part(SPIDER_SQL_TYPE_TMP_SQL)))
+            DBUG_RETURN(error_num);
+        }
+        result_list.use_union = FALSE;
+
+        if ((error_num = append_limit_sql_part(
+          result_list.internal_offset,
+          result_list.limit_num,
+          SPIDER_SQL_TYPE_SELECT_SQL)))
+        {
+          DBUG_RETURN(error_num);
+        }
+        if (
+          (error_num = append_select_lock_sql_part(
+            SPIDER_SQL_TYPE_SELECT_SQL))
+        ) {
+          DBUG_RETURN(error_num);
+        }
+      } else {
+        result_list.limit_num =
+          result_list.internal_limit - result_list.record_num;
+        if (
+          (error_num = init_union_table_name_pos_sql()) ||
+          (error_num =
+            append_union_all_start_sql_part(SPIDER_SQL_TYPE_SELECT_SQL))
+        )
+          DBUG_RETURN(error_num);
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+        do
+#else
+        for (
+          ;
+          multi_range_curr < multi_range_end;
+          multi_range_curr++
+        )
+#endif
+        {
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100000
+          multi_range_keys[multi_range_cnt] = mrr_cur_range.ptr;
+#else
+          multi_range_keys[multi_range_cnt] = (char *) mrr_cur_range.ptr;
+#endif
+#endif
+          if ((error_num = spider_db_append_select(this)))
+            DBUG_RETURN(error_num);
+          if ((error_num = append_multi_range_cnt_sql_part(
+            SPIDER_SQL_TYPE_SELECT_SQL, multi_range_cnt, TRUE)))
+            DBUG_RETURN(error_num);
+          if (
+            (error_num = spider_db_append_select_columns(this)) ||
+            (error_num = set_union_table_name_pos_sql())
+          )
+            DBUG_RETURN(error_num);
+          wide_handler->high_priority = FALSE;
+          if (
+            share->key_hint &&
+            (error_num = append_hint_after_table_sql_part(
+              SPIDER_SQL_TYPE_SELECT_SQL))
+          )
+            DBUG_RETURN(error_num);
+          set_where_pos_sql(SPIDER_SQL_TYPE_SELECT_SQL);
+          if (
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+            (error_num = spider_db_append_key_where(
+              &mrr_cur_range.start_key,
+              SPIDER_TEST(mrr_cur_range.range_flag & EQ_RANGE) ?
+              NULL : &mrr_cur_range.end_key, this))
+#else
+            (error_num = spider_db_append_key_where(
+              &multi_range_curr->start_key,
+              SPIDER_TEST(multi_range_curr->range_flag & EQ_RANGE) ?
+              NULL : &multi_range_curr->end_key, this))
+#endif
+          )
+            DBUG_RETURN(error_num);
+          if (result_list.direct_order_limit)
+          {
+            if ((error_num =
+              append_key_order_for_direct_order_limit_with_alias_sql_part(
+                NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
+              DBUG_RETURN(error_num);
+          } else {
+            if ((error_num = append_key_order_with_alias_sql_part(
+              NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
+              DBUG_RETURN(error_num);
+          }
+          if ((error_num = append_limit_sql_part(
+            0,
+            result_list.internal_offset + result_list.limit_num,
+            SPIDER_SQL_TYPE_SELECT_SQL)))
+          {
+            DBUG_RETURN(error_num);
+          }
+          if ((error_num = append_select_lock_sql_part(
+            SPIDER_SQL_TYPE_SELECT_SQL)))
+            DBUG_RETURN(error_num);
+          if ((error_num =
+            append_union_all_sql_part(SPIDER_SQL_TYPE_SELECT_SQL)))
+            DBUG_RETURN(error_num);
+          multi_range_cnt++;
+          if (multi_range_cnt >= (uint) result_list.multi_split_read)
+            break;
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+          if (multi_range_cnt == 1)
+          {
+            if (have_multi_range)
+            {
+              memcpy(&mrr_cur_range, &mrr_second_range,
+                sizeof(KEY_MULTI_RANGE));
+              have_second_range = FALSE;
+              range_res = 0;
+            } else {
+              range_res = 1;
+            }
+          } else {
+            range_res = mrr_funcs.next(mrr_iter, &mrr_cur_range);
+            DBUG_PRINT("info",("spider range_res7=%d", range_res));
+          }
+#endif
+        }
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+        while (!range_res);
+#endif
+        wide_handler->high_priority = tmp_high_priority;
+        if ((error_num =
+          append_union_all_end_sql_part(SPIDER_SQL_TYPE_SELECT_SQL)))
+          DBUG_RETURN(error_num);
+        result_list.use_union = TRUE;
+
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+        bool direct_aggregate_backup = result_list.direct_aggregate;
+        result_list.direct_aggregate = FALSE;
+#endif
+        if (result_list.direct_order_limit)
+        {
+          if ((error_num =
+            append_key_order_for_direct_order_limit_with_alias_sql_part(
+              NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
+            DBUG_RETURN(error_num);
+        } else {
+          if ((error_num = append_key_order_with_alias_sql_part(
+            NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
+            DBUG_RETURN(error_num);
+        }
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+        result_list.direct_aggregate = direct_aggregate_backup;
+#endif
+        if ((error_num = append_limit_sql_part(
+          result_list.internal_offset,
+          result_list.limit_num,
+          SPIDER_SQL_TYPE_SELECT_SQL)))
+        {
+          DBUG_RETURN(error_num);
+        }
+      }
+
+      int roop_start, roop_end, roop_count, tmp_lock_mode, link_ok;
+      tmp_lock_mode = spider_conn_lock_mode(this);
+      if (tmp_lock_mode)
+      {
+        /* "for update" or "lock in share mode" */
+        link_ok = spider_conn_link_idx_next(share->link_statuses,
+          conn_link_idx, -1, share->link_count,
+          SPIDER_LINK_STATUS_OK);
+        roop_start = spider_conn_link_idx_next(share->link_statuses,
+          conn_link_idx, -1, share->link_count,
+          SPIDER_LINK_STATUS_RECOVERY);
+        roop_end = share->link_count;
+      } else {
+        link_ok = search_link_idx;
+        roop_start = search_link_idx;
+        roop_end = search_link_idx + 1;
+      }
+      for (roop_count = roop_start; roop_count < roop_end;
+        roop_count = spider_conn_link_idx_next(share->link_statuses,
+          conn_link_idx, roop_count, share->link_count,
+          SPIDER_LINK_STATUS_RECOVERY)
+      ) {
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+        if (result_list.bgs_phase > 0)
+        {
+          if ((error_num = spider_check_and_init_casual_read(
+            wide_handler->trx->thd, this,
+            roop_count)))
+            DBUG_RETURN(error_num);
+          if ((error_num = spider_bg_conn_search(this, roop_count, roop_start,
+            TRUE, FALSE, (roop_count != link_ok))))
+          {
+            if (
+              error_num != HA_ERR_END_OF_FILE &&
+              share->monitoring_kind[roop_count] &&
+              need_mons[roop_count]
+            ) {
+              error_num = spider_ping_table_mon_from_table(
+                  wide_handler->trx,
+                  wide_handler->trx->thd,
+                  share,
+                  roop_count,
+                  (uint32) share->monitoring_sid[roop_count],
+                  share->table_name,
+                  share->table_name_length,
+                  conn_link_idx[roop_count],
+                  NULL,
+                  0,
+                  share->monitoring_kind[roop_count],
+                  share->monitoring_limit[roop_count],
+                  share->monitoring_flag[roop_count],
+                  TRUE
+                );
+            }
+            break;
+          }
+        } else {
+#endif
+          ulong sql_type;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+          if (conn_kind[roop_count] == SPIDER_CONN_KIND_MYSQL)
+          {
+#endif
+            conn = conns[roop_count];
+            if (sql_kind[roop_count] == SPIDER_SQL_KIND_SQL)
+            {
+              sql_type = SPIDER_SQL_TYPE_SELECT_SQL | SPIDER_SQL_TYPE_TMP_SQL;
+            } else {
+              sql_type = SPIDER_SQL_TYPE_HANDLER;
+            }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+          } else {
+            if (conn_kind[roop_count] == SPIDER_CONN_KIND_HS_READ)
+              conn = hs_r_conns[roop_count];
+            else
+              conn = hs_w_conns[roop_count];
+            sql_type = SPIDER_SQL_TYPE_SELECT_HS;
+          }
+#endif
+          spider_db_handler *dbton_hdl = dbton_handler[conn->dbton_id];
+          pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+          if (dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+          {
+            pthread_mutex_lock(&conn->mta_conn_mutex);
+            SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          }
+          if ((error_num =
+            dbton_hdl->set_sql_for_exec(sql_type, roop_count)))
+          {
+            if (dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+            {
+              SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+              pthread_mutex_unlock(&conn->mta_conn_mutex);
+            }
+            DBUG_RETURN(error_num);
+          }
+          if (!dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+          {
+            pthread_mutex_lock(&conn->mta_conn_mutex);
+            SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          }
+          sql_type &= ~SPIDER_SQL_TYPE_TMP_SQL;
+          DBUG_PRINT("info",("spider sql_type=%lu", sql_type));
+#ifdef HA_CAN_BULK_ACCESS
+          if (is_bulk_access_clone)
+          {
+            connection_ids[roop_count] = conn->connection_id;
+            spider_trx_add_bulk_access_conn(wide_handler->trx, conn);
+            SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+            pthread_mutex_unlock(&conn->mta_conn_mutex);
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+            *range_info = multi_range_keys[multi_range_hit_point];
+#else
+            *found_range_p = &multi_range_ranges[multi_range_hit_point];
+#endif
+            DBUG_RETURN(0);
+          } else {
+#endif
+            conn->need_mon = &need_mons[roop_count];
+            DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+            DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+            conn->mta_conn_mutex_lock_already = TRUE;
+            conn->mta_conn_mutex_unlock_later = TRUE;
+            if ((error_num = spider_db_set_names(this, conn,
+              roop_count)))
+            {
+              DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+              DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+              conn->mta_conn_mutex_lock_already = FALSE;
+              conn->mta_conn_mutex_unlock_later = FALSE;
+              SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+              pthread_mutex_unlock(&conn->mta_conn_mutex);
+              if (
+                share->monitoring_kind[roop_count] &&
+                need_mons[roop_count]
+              ) {
+                error_num = spider_ping_table_mon_from_table(
+                    wide_handler->trx,
+                    wide_handler->trx->thd,
+                    share,
+                    roop_count,
+                    (uint32) share->monitoring_sid[roop_count],
+                    share->table_name,
+                    share->table_name_length,
+                    conn_link_idx[roop_count],
+                    NULL,
+                    0,
+                    share->monitoring_kind[roop_count],
+                    share->monitoring_limit[roop_count],
+                    share->monitoring_flag[roop_count],
+                    TRUE
+                  );
+              }
+              break;
+            }
+            if (
+              result_list.tmp_table_join && bka_mode != 2 &&
+              spider_bit_is_set(result_list.tmp_table_join_first, roop_count)
+            ) {
+              spider_clear_bit(result_list.tmp_table_join_first, roop_count);
+              spider_set_bit(result_list.tmp_table_created, roop_count);
+              result_list.tmp_tables_created = TRUE;
+              spider_conn_set_timeout_from_share(conn, roop_count,
+                wide_handler->trx->thd, share);
+              if (dbton_hdl->execute_sql(
+                SPIDER_SQL_TYPE_TMP_SQL,
+                conn,
+                -1,
+                &need_mons[roop_count])
+              ) {
+                DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+                DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+                conn->mta_conn_mutex_lock_already = FALSE;
+                conn->mta_conn_mutex_unlock_later = FALSE;
+                error_num = spider_db_errorno(conn);
+                if (
+                  share->monitoring_kind[roop_count] &&
+                  need_mons[roop_count]
+                ) {
+                  error_num = spider_ping_table_mon_from_table(
+                      wide_handler->trx,
+                      wide_handler->trx->thd,
+                      share,
+                      roop_count,
+                      (uint32) share->monitoring_sid[roop_count],
+                      share->table_name,
+                      share->table_name_length,
+                      conn_link_idx[roop_count],
+                      NULL,
+                      0,
+                      share->monitoring_kind[roop_count],
+                      share->monitoring_limit[roop_count],
+                      share->monitoring_flag[roop_count],
+                      TRUE
+                    );
+                }
+                break;
+              }
+              spider_db_discard_multiple_result(this, roop_count, conn);
+            }
+            spider_conn_set_timeout_from_share(conn, roop_count,
+              wide_handler->trx->thd, share);
+            if (dbton_hdl->execute_sql(
+              sql_type,
+              conn,
+              result_list.quick_mode,
+              &need_mons[roop_count])
+            ) {
+              DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+              DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+              conn->mta_conn_mutex_lock_already = FALSE;
+              conn->mta_conn_mutex_unlock_later = FALSE;
+              error_num = spider_db_errorno(conn);
+              if (
+                share->monitoring_kind[roop_count] &&
+                need_mons[roop_count]
+              ) {
+                error_num = spider_ping_table_mon_from_table(
+                    wide_handler->trx,
+                    wide_handler->trx->thd,
+                    share,
+                    roop_count,
+                    (uint32) share->monitoring_sid[roop_count],
+                    share->table_name,
+                    share->table_name_length,
+                    conn_link_idx[roop_count],
+                    NULL,
+                    0,
+                    share->monitoring_kind[roop_count],
+                    share->monitoring_limit[roop_count],
+                    share->monitoring_flag[roop_count],
+                    TRUE
+                  );
+              }
+              break;
+            }
+            connection_ids[roop_count] = conn->connection_id;
+            DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+            DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+            conn->mta_conn_mutex_lock_already = FALSE;
+            conn->mta_conn_mutex_unlock_later = FALSE;
+            if (roop_count == link_ok)
+            {
+              if ((error_num = spider_db_store_result(this, roop_count, table)))
+              {
+                if (
+                  error_num != HA_ERR_END_OF_FILE &&
+                  share->monitoring_kind[roop_count] &&
+                  need_mons[roop_count]
+                ) {
+                  error_num = spider_ping_table_mon_from_table(
+                      wide_handler->trx,
+                      wide_handler->trx->thd,
+                      share,
+                      roop_count,
+                      (uint32) share->monitoring_sid[roop_count],
+                      share->table_name,
+                      share->table_name_length,
+                      conn_link_idx[roop_count],
+                      NULL,
+                      0,
+                      share->monitoring_kind[roop_count],
+                      share->monitoring_limit[roop_count],
+                      share->monitoring_flag[roop_count],
+                      TRUE
+                    );
+                }
+                break;
+              }
+              result_link_idx = link_ok;
+            } else {
+              spider_db_discard_result(this, roop_count, conn);
+              SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+              pthread_mutex_unlock(&conn->mta_conn_mutex);
+            }
+#ifdef HA_CAN_BULK_ACCESS
+          }
+#endif
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+        }
+#endif
+      }
+      if (error_num)
+      {
+        if (
+          error_num != HA_ERR_END_OF_FILE &&
+          !check_error_mode(error_num)
+        )
+          error_num = HA_ERR_END_OF_FILE;
+        if (error_num == HA_ERR_END_OF_FILE)
+        {
+          if (multi_range_cnt >= (uint) result_list.multi_split_read)
+          {
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+            range_res = mrr_funcs.next(mrr_iter, &mrr_cur_range);
+            DBUG_PRINT("info",("spider range_res8=%d", range_res));
+#else
+            multi_range_curr++;
+#endif
+          }
+          if (
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+            range_res
+#else
+            multi_range_curr == multi_range_end
+#endif
+          ) {
+            table->status = STATUS_NOT_FOUND;
+            DBUG_RETURN(error_num);
+          }
+
+          DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
+          result_list.finish_flg = FALSE;
+          result_list.record_num = 0;
+          if (result_list.current)
+          {
+            DBUG_PRINT("info",
+              ("spider result_list.current->finish_flg = FALSE"));
+            result_list.current->finish_flg = FALSE;
+            spider_db_free_one_result(&result_list,
+              (SPIDER_RESULT *) result_list.current);
+            if (result_list.current == result_list.first)
+              result_list.current = NULL;
+            else
+              result_list.current = result_list.current->prev;
+          }
+          error_num = 0;
+        } else
+          DBUG_RETURN(error_num);
+      } else {
+        if (!(error_num = spider_db_fetch(table->record[0], this, table)))
+        {
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+          *range_info = multi_range_keys[multi_range_hit_point];
+#else
+          *found_range_p = &multi_range_ranges[multi_range_hit_point];
+#endif
+          DBUG_RETURN(0);
+        }
+        if (
+          error_num != HA_ERR_END_OF_FILE &&
+          !check_error_mode(error_num)
+        )
+          error_num = HA_ERR_END_OF_FILE;
+        if (error_num == HA_ERR_END_OF_FILE)
+        {
+          if (multi_range_cnt >= (uint) result_list.multi_split_read)
+          {
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+            range_res = mrr_funcs.next(mrr_iter, &mrr_cur_range);
+            DBUG_PRINT("info",("spider range_res9=%d", range_res));
+#else
+            multi_range_curr++;
+#endif
+          }
+          if (
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+            range_res
+#else
+            multi_range_curr == multi_range_end
+#endif
+          ) {
+            table->status = STATUS_NOT_FOUND;
+            DBUG_RETURN(error_num);
+          }
+
+          DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
+          result_list.finish_flg = FALSE;
+          result_list.record_num = 0;
+          if (result_list.current)
+          {
+            DBUG_PRINT("info",
+              ("spider result_list.current->finish_flg = FALSE"));
+            result_list.current->finish_flg = FALSE;
+            spider_db_free_one_result(&result_list,
+              (SPIDER_RESULT *) result_list.current);
+            if (result_list.current == result_list.first)
+              result_list.current = NULL;
+            else
+              result_list.current = result_list.current->prev;
+          }
+          error_num = 0;
+        } else
+          DBUG_RETURN(error_num);
+      }
+      if (check_no_where_cond())
+      {
+        DBUG_RETURN(check_error_mode_eof(0));
+      }
+      multi_range_cnt = 0;
+      if ((error_num = reset_sql_sql(
+        SPIDER_SQL_TYPE_SELECT_SQL | SPIDER_SQL_TYPE_HANDLER)))
+        DBUG_RETURN(error_num);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      if (
+        (error_num = reset_hs_keys(SPIDER_SQL_TYPE_SELECT_HS))
+      )
+        DBUG_RETURN(error_num);
+#endif
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+#else
+      multi_range_ranges = multi_range_curr;
+#endif
+    } while (!error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::rnd_init(
+  bool scan
+) {
+  int error_num;
+  DBUG_ENTER("ha_spider::rnd_init");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider scan=%s", scan ? "TRUE" : "FALSE"));
+  if (!dml_inited)
+  {
+    if (unlikely((error_num = dml_init())))
+    {
+      DBUG_RETURN(error_num);
+    }
+  }
+  pushed_pos = NULL;
+/*
+  if (wide_handler->external_lock_type == F_WRLCK)
+    check_and_start_bulk_update(SPD_BU_START_BY_INDEX_OR_RND_INIT);
+*/
+  rnd_scan_and_first = scan;
+  if (
+    scan &&
+    wide_handler->sql_command != SQLCOM_ALTER_TABLE
+  ) {
+    spider_set_result_list_param(this);
+    pk_update = FALSE;
+    if (
+      result_list.current &&
+      !result_list.low_mem_read &&
+      prev_index_rnd_init == SPD_RND
+    ) {
+      result_list.current = result_list.first;
+      spider_db_set_pos_to_first_row(&result_list);
+      rnd_scan_and_first = FALSE;
+    } else {
+      spider_db_free_one_result_for_start_next(this);
+      if (
+        result_list.current &&
+        result_list.low_mem_read
+      ) {
+        int roop_start, roop_end, roop_count, tmp_lock_mode;
+        tmp_lock_mode = spider_conn_lock_mode(this);
+        if (tmp_lock_mode)
+        {
+          /* "for update" or "lock in share mode" */
+          roop_start = spider_conn_link_idx_next(share->link_statuses,
+            conn_link_idx, -1, share->link_count,
+            SPIDER_LINK_STATUS_RECOVERY);
+          roop_end = share->link_count;
+        } else {
+          roop_start = search_link_idx;
+          roop_end = search_link_idx + 1;
+        }
+        for (roop_count = roop_start; roop_count < roop_end;
+          roop_count = spider_conn_link_idx_next(share->link_statuses,
+            conn_link_idx, roop_count, share->link_count,
+            SPIDER_LINK_STATUS_RECOVERY)
+        ) {
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+          if (conns[roop_count] && result_list.bgs_working)
+            spider_bg_conn_break(conns[roop_count], this);
+#endif
+          if (quick_targets[roop_count])
+          {
+            spider_db_free_one_quick_result(
+              (SPIDER_RESULT *) result_list.current);
+            DBUG_ASSERT(quick_targets[roop_count] ==
+              conns[roop_count]->quick_target);
+            DBUG_PRINT("info", ("spider conn[%p]->quick_target=NULL",
+              conns[roop_count]));
+            conns[roop_count]->quick_target = NULL;
+            quick_targets[roop_count] = NULL;
+          }
+        }
+        result_list.record_num = 0;
+        DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
+        result_list.finish_flg = FALSE;
+        result_list.quick_phase = 0;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+        result_list.bgs_phase = 0;
+#endif
+      }
+
+      mrr_with_cnt = FALSE;
+      use_spatial_index = FALSE;
+
+      if (
+        wide_handler->update_request &&
+        share->have_recovery_link &&
+        wide_handler->external_lock_type == F_WRLCK &&
+        (pk_update = spider_check_pk_update(table))
+      ) {
+        bitmap_set_all(table->read_set);
+        if (is_clone)
+          memset(wide_handler->searched_bitmap, 0xFF,
+            no_bytes_in_map(table->read_set));
+      }
+
+      set_select_column_mode();
+      result_list.keyread = FALSE;
+
+      init_rnd_handler = FALSE;
+      if ((error_num = reset_sql_sql(
+        SPIDER_SQL_TYPE_SELECT_SQL | SPIDER_SQL_TYPE_HANDLER)))
+        DBUG_RETURN(error_num);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      if (
+        (error_num = reset_hs_sql(SPIDER_SQL_TYPE_SELECT_HS)) ||
+        (error_num = reset_hs_keys(SPIDER_SQL_TYPE_SELECT_HS))
+      )
+        DBUG_RETURN(error_num);
+#endif
+      result_list.check_direct_order_limit = FALSE;
+    }
+  }
+  prev_index_rnd_init = SPD_RND;
+  DBUG_RETURN(0);
+}
+
+#ifdef HA_CAN_BULK_ACCESS
+int ha_spider::pre_rnd_init(
+  bool scan
+) {
+  DBUG_ENTER("ha_spider::pre_rnd_init");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(bulk_access_link_current->spider->ha_rnd_init(scan));
+}
+#endif
+
+int ha_spider::rnd_end()
+{
+/*
+  int error_num;
+  backup_error_status();
+*/
+  DBUG_ENTER("ha_spider::rnd_end");
+  DBUG_PRINT("info",("spider this=%p", this));
+/*
+#ifdef INFO_KIND_FORCE_LIMIT_BEGIN
+  info_limit = 9223372036854775807LL;
+#endif
+  if (
+    (error_num = check_and_end_bulk_update(
+      SPD_BU_START_BY_INDEX_OR_RND_INIT)) ||
+    (error_num = spider_trx_check_link_idx_failed(this))
+  )
+    DBUG_RETURN(check_error_mode(error_num));
+*/
+  DBUG_RETURN(0);
+}
+
+#ifdef HA_CAN_BULK_ACCESS
+int ha_spider::pre_rnd_end()
+{
+  DBUG_ENTER("ha_spider::pre_rnd_end");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(bulk_access_link_current->spider->ha_rnd_end());
+}
+#endif
+
+int ha_spider::rnd_next_internal(
+  uchar *buf
+) {
+  int error_num;
+  ha_spider *direct_limit_offset_spider =
+    (ha_spider *) partition_handler_share->owner;
+  backup_error_status();
+  DBUG_ENTER("ha_spider::rnd_next_internal");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (wide_handler->trx->thd->killed)
+  {
+    my_error(ER_QUERY_INTERRUPTED, MYF(0));
+    DBUG_RETURN(ER_QUERY_INTERRUPTED);
+  }
+  /* do not copy table data at alter table */
+  if (wide_handler->sql_command == SQLCOM_ALTER_TABLE)
+    DBUG_RETURN(HA_ERR_END_OF_FILE);
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  do_direct_update = FALSE;
+#endif
+
+  if (rnd_scan_and_first)
+  {
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    if (sql_kinds & SPIDER_SQL_KIND_HS)
+      DBUG_RETURN(HA_ERR_WRONG_COMMAND);
+#endif
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+    if ((error_num = spider_set_conn_bg_param(this)))
+      DBUG_RETURN(error_num);
+#endif
+    if ((error_num = rnd_handler_init()))
+      DBUG_RETURN(check_error_mode_eof(error_num));
+    check_direct_order_limit();
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+    check_select_column(TRUE);
+#endif
+
+    if (this->result_list.direct_limit_offset)
+    {
+      if (direct_limit_offset_spider->direct_select_limit == 0)
+      { // mean has got all result
+        DBUG_RETURN(check_error_mode_eof(HA_ERR_END_OF_FILE));
+      }
+      if (
+        partition_handler_share->handlers &&
+        direct_limit_offset_spider->direct_current_offset > 0
+      ) {
+        longlong table_count = this->records();
+        DBUG_PRINT("info",("spider table_count=%lld", table_count));
+        if (table_count <= direct_limit_offset_spider->direct_current_offset)
+        {
+          // skip this spider(partition)
+          direct_limit_offset_spider->direct_current_offset -= table_count;
+          DBUG_PRINT("info",("spider direct_current_offset=%lld",
+            direct_limit_offset_spider->direct_current_offset));
+          DBUG_RETURN(check_error_mode_eof(HA_ERR_END_OF_FILE));
+        }
+      }
+
+      // make the offset/limit statement
+      DBUG_PRINT("info",("spider direct_current_offset=%lld",
+        direct_limit_offset_spider->direct_current_offset));
+      result_list.internal_offset = direct_limit_offset_spider->direct_current_offset;
+      DBUG_PRINT("info",("spider direct_select_limit=%lld",
+        direct_limit_offset_spider->direct_select_limit));
+      result_list.internal_limit = direct_limit_offset_spider->direct_select_limit;
+      result_list.split_read = direct_limit_offset_spider->direct_select_limit;
+
+      // start with this spider(partition)
+      direct_limit_offset_spider->direct_current_offset = 0;
+    }
+
+    DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
+    result_list.finish_flg = FALSE;
+    result_list.record_num = 0;
+    if (
+      (error_num = spider_db_append_select(this)) ||
+      (error_num = spider_db_append_select_columns(this))
+    )
+      DBUG_RETURN(error_num);
+    set_where_pos_sql(SPIDER_SQL_TYPE_SELECT_SQL);
+
+    /* append condition pushdown */
+    if (spider_db_append_condition(this, NULL, 0, FALSE))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+
+    set_order_pos_sql(SPIDER_SQL_TYPE_SELECT_SQL);
+    if (result_list.direct_order_limit)
+    {
+      if ((error_num =
+        append_key_order_for_direct_order_limit_with_alias_sql_part(
+          NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
+        DBUG_RETURN(error_num);
+    }
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+    else if (result_list.direct_aggregate)
+    {
+      if ((error_num =
+        append_group_by_sql_part(NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
+        DBUG_RETURN(error_num);
+    }
+#endif
+    result_list.desc_flg = FALSE;
+    result_list.sorted = FALSE;
+    result_list.key_info = NULL;
+    result_list.limit_num =
+      result_list.internal_limit >= result_list.split_read ?
+      result_list.split_read : result_list.internal_limit;
+    if (sql_kinds & SPIDER_SQL_KIND_SQL)
+    {
+      if ((error_num = append_limit_sql_part(
+        result_list.internal_offset,
+        result_list.limit_num,
+        SPIDER_SQL_TYPE_SELECT_SQL)))
+      {
+        DBUG_RETURN(error_num);
+      }
+      if (
+        (error_num = append_select_lock_sql_part(
+          SPIDER_SQL_TYPE_SELECT_SQL))
+      ) {
+        DBUG_RETURN(error_num);
+      }
+    }
+    if (sql_kinds & SPIDER_SQL_KIND_HANDLER)
+    {
+      if ((error_num = append_limit_sql_part(
+        result_list.internal_offset,
+        result_list.limit_num,
+        SPIDER_SQL_TYPE_HANDLER)))
+      {
+        DBUG_RETURN(error_num);
+      }
+    }
+
+    int roop_start, roop_end, roop_count, tmp_lock_mode, link_ok;
+    tmp_lock_mode = spider_conn_lock_mode(this);
+    if (tmp_lock_mode)
+    {
+      /* "for update" or "lock in share mode" */
+      link_ok = spider_conn_link_idx_next(share->link_statuses,
+        conn_link_idx, -1, share->link_count,
+        SPIDER_LINK_STATUS_OK);
+      roop_start = spider_conn_link_idx_next(share->link_statuses,
+        conn_link_idx, -1, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY);
+      roop_end = share->link_count;
+    } else {
+      link_ok = search_link_idx;
+      roop_start = search_link_idx;
+      roop_end = search_link_idx + 1;
+    }
+    for (roop_count = roop_start; roop_count < roop_end;
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        conn_link_idx, roop_count, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY)
+    ) {
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+      if (result_list.bgs_phase > 0)
+      {
+        if ((error_num = spider_check_and_init_casual_read(
+          wide_handler->trx->thd, this,
+          roop_count)))
+          DBUG_RETURN(error_num);
+        if ((error_num = spider_bg_conn_search(this, roop_count, roop_start,
+          TRUE, FALSE, (roop_count != link_ok))))
+        {
+          if (
+            error_num != HA_ERR_END_OF_FILE &&
+            share->monitoring_kind[roop_count] &&
+            need_mons[roop_count]
+          ) {
+            error_num = spider_ping_table_mon_from_table(
+                wide_handler->trx,
+                wide_handler->trx->thd,
+                share,
+                roop_count,
+                (uint32) share->monitoring_sid[roop_count],
+                share->table_name,
+                share->table_name_length,
+                conn_link_idx[roop_count],
+                NULL,
+                0,
+                share->monitoring_kind[roop_count],
+                share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
+                TRUE
+              );
+          }
+          DBUG_RETURN(check_error_mode_eof(error_num));
+        }
+      } else {
+#endif
+        SPIDER_CONN *conn = conns[roop_count];
+        ulong sql_type;
+        if (sql_kind[roop_count] == SPIDER_SQL_KIND_SQL)
+        {
+          sql_type = SPIDER_SQL_TYPE_SELECT_SQL;
+        } else {
+          sql_type = SPIDER_SQL_TYPE_HANDLER;
+        }
+        spider_db_handler *dbton_hdl = dbton_handler[conn->dbton_id];
+        pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+        if (dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+        {
+          pthread_mutex_lock(&conn->mta_conn_mutex);
+          SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        }
+        if ((error_num =
+          dbton_hdl->set_sql_for_exec(sql_type, roop_count)))
+        {
+          if (dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+          {
+            SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+            pthread_mutex_unlock(&conn->mta_conn_mutex);
+          }
+          DBUG_RETURN(error_num);
+        }
+        if (!dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+        {
+          pthread_mutex_lock(&conn->mta_conn_mutex);
+          SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        }
+        DBUG_PRINT("info",("spider sql_type=%lu", sql_type));
+        conn->need_mon = &need_mons[roop_count];
+        DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = TRUE;
+        conn->mta_conn_mutex_unlock_later = TRUE;
+        if ((error_num = spider_db_set_names(this, conn,
+          roop_count)))
+        {
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+          if (
+            share->monitoring_kind[roop_count] &&
+            need_mons[roop_count]
+          ) {
+            error_num = spider_ping_table_mon_from_table(
+                wide_handler->trx,
+                wide_handler->trx->thd,
+                share,
+                roop_count,
+                (uint32) share->monitoring_sid[roop_count],
+                share->table_name,
+                share->table_name_length,
+                conn_link_idx[roop_count],
+                NULL,
+                0,
+                share->monitoring_kind[roop_count],
+                share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
+                TRUE
+              );
+          }
+          DBUG_RETURN(check_error_mode_eof(error_num));
+        }
+        spider_conn_set_timeout_from_share(conn, roop_count,
+          wide_handler->trx->thd, share);
+        if (dbton_hdl->execute_sql(
+          sql_type,
+          conn,
+          result_list.quick_mode,
+          &need_mons[roop_count])
+        ) {
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          error_num = spider_db_errorno(conn);
+          if (
+            share->monitoring_kind[roop_count] &&
+            need_mons[roop_count]
+          ) {
+            error_num = spider_ping_table_mon_from_table(
+                wide_handler->trx,
+                wide_handler->trx->thd,
+                share,
+                roop_count,
+                (uint32) share->monitoring_sid[roop_count],
+                share->table_name,
+                share->table_name_length,
+                conn_link_idx[roop_count],
+                NULL,
+                0,
+                share->monitoring_kind[roop_count],
+                share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
+                TRUE
+              );
+          }
+          DBUG_RETURN(check_error_mode_eof(error_num));
+        }
+        connection_ids[roop_count] = conn->connection_id;
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        if (roop_count == link_ok)
+        {
+          if ((error_num = spider_db_store_result(this, roop_count, table)))
+          {
+            if (
+              error_num != HA_ERR_END_OF_FILE &&
+              share->monitoring_kind[roop_count] &&
+              need_mons[roop_count]
+            ) {
+              error_num = spider_ping_table_mon_from_table(
+                  wide_handler->trx,
+                  wide_handler->trx->thd,
+                  share,
+                  roop_count,
+                  (uint32) share->monitoring_sid[roop_count],
+                  share->table_name,
+                  share->table_name_length,
+                  conn_link_idx[roop_count],
+                  NULL,
+                  0,
+                  share->monitoring_kind[roop_count],
+                  share->monitoring_limit[roop_count],
+                  share->monitoring_flag[roop_count],
+                  TRUE
+                );
+            }
+            DBUG_RETURN(check_error_mode_eof(error_num));
+          }
+          result_link_idx = link_ok;
+        } else {
+          spider_db_discard_result(this, roop_count, conn);
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+        }
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+      }
+#endif
+    }
+    rnd_scan_and_first = FALSE;
+
+    if (this->result_list.direct_limit_offset)
+    {
+      if (buf && (error_num = spider_db_seek_next(buf, this, search_link_idx,
+        table)))
+        DBUG_RETURN(check_error_mode_eof(error_num));
+      DBUG_RETURN(0);
+    }
+  }
+
+  if (
+    result_list.direct_limit_offset &&
+    direct_limit_offset_spider->direct_select_offset > 0
+  ) {
+    // limit-- for each got row
+    direct_limit_offset_spider->direct_select_offset--;
+    DBUG_RETURN(0);
+  }
+
+  if (buf && (error_num = spider_db_seek_next(buf, this, search_link_idx,
+    table)))
+    DBUG_RETURN(check_error_mode_eof(error_num));
+  DBUG_RETURN(0);
+}
+
+int ha_spider::pre_rnd_next(
+  bool use_parallel
+) {
+  DBUG_ENTER("ha_spider::pre_rnd_next");
+  DBUG_PRINT("info",("spider this=%p", this));
+  check_pre_call(use_parallel);
+  if (use_pre_call)
+  {
+    store_error_num =
+      rnd_next_internal(NULL);
+    DBUG_RETURN(store_error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::rnd_next(
+  uchar *buf
+) {
+  int error_num;
+  DBUG_ENTER("ha_spider::rnd_next");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (use_pre_call)
+  {
+    if (store_error_num)
+    {
+      if (store_error_num == HA_ERR_END_OF_FILE)
+        table->status = STATUS_NOT_FOUND;
+      DBUG_RETURN(store_error_num);
+    }
+    if ((error_num = spider_bg_all_conn_pre_next(this, search_link_idx)))
+      DBUG_RETURN(error_num);
+    use_pre_call = FALSE;
+  }
+  DBUG_RETURN(rnd_next_internal(buf));
+}
+
+void ha_spider::position(
+  const uchar *record
+) {
+  DBUG_ENTER("ha_spider::position");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (pushed_pos)
+  {
+    DBUG_PRINT("info",("spider pushed_pos=%p", pushed_pos));
+    memcpy(ref, pushed_pos, ref_length);
+    DBUG_VOID_RETURN;
+  }
+  if (pt_clone_last_searcher)
+  {
+    /* sercher is cloned handler */
+    DBUG_PRINT("info",("spider cloned handler access"));
+    pt_clone_last_searcher->position(record);
+    memcpy(ref, pt_clone_last_searcher->ref, ref_length);
+  } else {
+    if (is_clone)
+    {
+      DBUG_PRINT("info",("spider set pt_clone_last_searcher (NULL) to %p",
+        pt_clone_source_handler));
+      pt_clone_source_handler->pt_clone_last_searcher = NULL;
+    }
+    memset(ref, '0', sizeof(SPIDER_POSITION));
+    DBUG_PRINT("info",("spider self position"));
+    DBUG_PRINT("info",
+      ("spider current_row_num=%lld", result_list.current_row_num));
+    if (!wide_handler->position_bitmap_init)
+    {
+      if (select_column_mode)
+      {
+        spider_db_handler *dbton_hdl =
+          dbton_handler[result_list.current->dbton_id];
+        dbton_hdl->copy_minimum_select_bitmap(wide_handler->position_bitmap);
+      }
+      wide_handler->position_bitmap_init = TRUE;
+    }
+    spider_db_create_position(this, (SPIDER_POSITION *) ref);
+  }
+  DBUG_VOID_RETURN;
+}
+
+int ha_spider::rnd_pos(
+  uchar *buf,
+  uchar *pos
+) {
+  DBUG_ENTER("ha_spider::rnd_pos");
+  DBUG_PRINT("info",("spider this=%p", this));
+#ifndef DBUG_OFF
+  for (uint roop_count = 0; roop_count < ((table->s->fields + 7) / 8);
+    roop_count++)
+  {
+    DBUG_PRINT("info",("spider roop_count=%d", roop_count));
+    DBUG_PRINT("info",("spider read_set=%d",
+      ((uchar *) table->read_set->bitmap)[roop_count]));
+  }
+#endif
+  if (wide_handler->trx->thd->killed)
+  {
+    my_error(ER_QUERY_INTERRUPTED, MYF(0));
+    DBUG_RETURN(ER_QUERY_INTERRUPTED);
+  }
+  DBUG_PRINT("info",("spider pos=%p", pos));
+  DBUG_PRINT("info",("spider buf=%p", buf));
+  pushed_pos_buf = *((SPIDER_POSITION *) pos);
+  pushed_pos = &pushed_pos_buf;
+  DBUG_RETURN(spider_db_seek_tmp(buf, &pushed_pos_buf, this, table));
+}
+
+int ha_spider::cmp_ref(
+  const uchar *ref1,
+  const uchar *ref2
+) {
+  int ret = 0;
+  DBUG_ENTER("ha_spider::cmp_ref");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider ref1=%p", ref1));
+  DBUG_PRINT("info",("spider ref2=%p", ref2));
+  result_list.in_cmp_ref = TRUE;
+  if (table_share->primary_key < MAX_KEY)
+  {
+    uchar table_key[MAX_KEY_LENGTH];
+    KEY *key_info = &table->key_info[table_share->primary_key];
+    DBUG_PRINT("info",("spider cmp by primary key"));
+    rnd_pos(table->record[0], (uchar *) ref2);
+    key_copy(
+      table_key,
+      table->record[0],
+      key_info,
+      key_info->key_length);
+    rnd_pos(table->record[0], (uchar *) ref1);
+    ret = key_cmp(key_info->key_part, table_key, key_info->key_length);
+  } else {
+    Field **field;
+    my_ptrdiff_t ptr_diff = PTR_BYTE_DIFF(table->record[1], table->record[0]);
+    DBUG_PRINT("info",("spider cmp by all rows"));
+    rnd_pos(table->record[1], (uchar *) ref2);
+    rnd_pos(table->record[0], (uchar *) ref1);
+    for (
+      field = table->field;
+      *field;
+      field++
+    ) {
+      if ((ret = (*field)->cmp_binary_offset((uint) ptr_diff)))
+      {
+        DBUG_PRINT("info",("spider different at %s",
+          SPIDER_field_name_str(*field)));
+        break;
+      }
+    }
+  }
+  result_list.in_cmp_ref = FALSE;
+  DBUG_PRINT("info",("spider ret=%d", ret));
+  DBUG_RETURN(ret);
+}
+
+float spider_ft_find_relevance(
+  FT_INFO *handler,
+  uchar *record,
+  uint length
+) {
+  DBUG_ENTER("spider_ft_find_relevance");
+  st_spider_ft_info *info = (st_spider_ft_info*) handler;
+  DBUG_PRINT("info",("spider info=%p", info));
+  DBUG_PRINT("info",("spider score=%f", info->score));
+  DBUG_RETURN(info->score);
+}
+
+float spider_ft_get_relevance(
+  FT_INFO *handler
+) {
+  DBUG_ENTER("spider_ft_get_relevance");
+  st_spider_ft_info *info = (st_spider_ft_info*) handler;
+  DBUG_PRINT("info",("spider info=%p", info));
+  DBUG_PRINT("info",("spider score=%f", info->score));
+  DBUG_RETURN(info->score);
+}
+
+void spider_ft_close_search(
+  FT_INFO *handler
+) {
+  DBUG_ENTER("spider_ft_close_search");
+  DBUG_VOID_RETURN;
+}
+
+_ft_vft spider_ft_vft = {
+  NULL, // spider_ft_read_next
+  spider_ft_find_relevance,
+  spider_ft_close_search,
+  spider_ft_get_relevance,
+  NULL // spider_ft_reinit_search
+};
+
+int ha_spider::ft_init()
+{
+  int roop_count, error_num;
+  DBUG_ENTER("ha_spider::ft_init");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (store_error_num)
+    DBUG_RETURN(store_error_num);
+  if (active_index == MAX_KEY && inited == NONE)
+  {
+    st_spider_ft_info  *ft_info = ft_first;
+    ft_init_without_index_init = TRUE;
+    ft_init_idx = MAX_KEY;
+    while (TRUE)
+    {
+      if (ft_info->used_in_where)
+      {
+        ft_init_idx = ft_info->inx;
+        if ((error_num = index_init(ft_init_idx, FALSE)))
+          DBUG_RETURN(error_num);
+        active_index = MAX_KEY;
+        break;
+      }
+      if (ft_info == ft_current)
+        break;
+      ft_info = ft_info->next;
+    }
+    if (ft_init_idx == MAX_KEY)
+    {
+      if ((error_num = rnd_init(TRUE)))
+        DBUG_RETURN(error_num);
+    }
+  } else {
+    ft_init_idx = active_index;
+    ft_init_without_index_init = FALSE;
+  }
+
+  ft_init_and_first = TRUE;
+
+  for (roop_count = 0; roop_count < (int) share->link_count; roop_count++)
+    sql_kind[roop_count] = SPIDER_SQL_KIND_SQL;
+  sql_kinds = SPIDER_SQL_KIND_SQL;
+  DBUG_RETURN(0);
+}
+
+void ha_spider::ft_end()
+{
+  DBUG_ENTER("ha_spider::ft_end");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (ft_init_without_index_init)
+  {
+    if (ft_init_idx == MAX_KEY)
+      store_error_num = rnd_end();
+    else
+      store_error_num = index_end();
+  }
+  ft_init_without_index_init = FALSE;
+  handler::ft_end();
+  DBUG_VOID_RETURN;
+}
+
+FT_INFO *ha_spider::ft_init_ext(
+  uint flags,
+  uint inx,
+  String *key
+) {
+  st_spider_ft_info *tmp_ft_info;
+  backup_error_status();
+  DBUG_ENTER("ha_spider::ft_init_ext");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider flags=%u", flags));
+  DBUG_PRINT("info",("spider inx=%u", inx));
+  DBUG_PRINT("info",("spider key=%s", key->c_ptr_safe()));
+  if (inx == NO_SUCH_KEY)
+  {
+    my_error(ER_FT_MATCHING_KEY_NOT_FOUND, MYF(0));
+    DBUG_RETURN(NULL);
+  }
+
+  tmp_ft_info = ft_current;
+  if (ft_current)
+    ft_current = ft_current->next;
+  else {
+    ft_current = ft_first;
+    set_ft_discard_bitmap();
+  }
+
+  if (!ft_current)
+  {
+    if (!(ft_current = (st_spider_ft_info *)
+      spider_malloc(spider_current_trx, 2, sizeof(st_spider_ft_info),
+        MYF(MY_WME | MY_ZEROFILL))))
+    {
+      my_error(HA_ERR_OUT_OF_MEM, MYF(0));
+      DBUG_RETURN(NULL);
+    }
+    if (tmp_ft_info)
+      tmp_ft_info->next = ft_current;
+    else
+      ft_first = ft_current;
+  }
+
+  ft_current->please = &spider_ft_vft;
+  ft_current->file = this;
+  ft_current->used_in_where = (flags & FT_SORTED);
+  ft_current->target = ft_count;
+  ft_current->flags = flags;
+  ft_current->inx = inx;
+  ft_current->key = key;
+
+  ft_count++;
+  DBUG_RETURN((FT_INFO *) ft_current);
+}
+
+int ha_spider::ft_read_internal(
+  uchar *buf
+) {
+  int error_num;
+  backup_error_status();
+  DBUG_ENTER("ha_spider::ft_read_internal");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (wide_handler->trx->thd->killed)
+  {
+    my_error(ER_QUERY_INTERRUPTED, MYF(0));
+    DBUG_RETURN(ER_QUERY_INTERRUPTED);
+  }
+  if (ft_init_and_first)
+  {
+    ft_init_and_first = FALSE;
+    spider_db_free_one_result_for_start_next(this);
+    check_direct_order_limit();
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+    if ((error_num = spider_set_conn_bg_param(this)))
+      DBUG_RETURN(error_num);
+#endif
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+    check_select_column(FALSE);
+#endif
+    DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
+    result_list.finish_flg = FALSE;
+    result_list.record_num = 0;
+    if (wide_handler->keyread)
+      result_list.keyread = TRUE;
+    else
+      result_list.keyread = FALSE;
+    if (
+      (error_num = spider_db_append_select(this)) ||
+      (error_num = spider_db_append_select_columns(this))
+    )
+      DBUG_RETURN(error_num);
+    uint tmp_active_index = active_index;
+    active_index = ft_init_idx;
+    if (
+      ft_init_idx < MAX_KEY &&
+      share->key_hint &&
+      (error_num =
+        append_hint_after_table_sql_part(SPIDER_SQL_TYPE_SELECT_SQL))
+    ) {
+      active_index = tmp_active_index;
+      DBUG_RETURN(error_num);
+    }
+    active_index = tmp_active_index;
+    set_where_pos_sql(SPIDER_SQL_TYPE_SELECT_SQL);
+    result_list.desc_flg = FALSE;
+    result_list.sorted = TRUE;
+    if (ft_init_idx == MAX_KEY)
+      result_list.key_info = NULL;
+    else
+      result_list.key_info = &table->key_info[ft_init_idx];
+    result_list.key_order = 0;
+    result_list.limit_num =
+      result_list.internal_limit >= result_list.split_read ?
+      result_list.split_read : result_list.internal_limit;
+    if ((error_num = spider_db_append_match_where(this)))
+      DBUG_RETURN(error_num);
+    if (result_list.direct_order_limit)
+    {
+      if ((error_num =
+        append_key_order_for_direct_order_limit_with_alias_sql_part(NULL, 0,
+          SPIDER_SQL_TYPE_SELECT_SQL)))
+        DBUG_RETURN(error_num);
+    }
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+    else if (result_list.direct_aggregate)
+    {
+      if ((error_num =
+        append_group_by_sql_part(NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)))
+        DBUG_RETURN(error_num);
+    }
+#endif
+    if (sql_kinds & SPIDER_SQL_KIND_SQL)
+    {
+      if ((error_num = append_limit_sql_part(
+        result_list.internal_offset,
+        result_list.limit_num,
+        SPIDER_SQL_TYPE_SELECT_SQL)))
+      {
+        DBUG_RETURN(error_num);
+      }
+      if (
+        (error_num = append_select_lock_sql_part(
+          SPIDER_SQL_TYPE_SELECT_SQL))
+      ) {
+        DBUG_RETURN(error_num);
+      }
+    }
+    if (sql_kinds & SPIDER_SQL_KIND_HANDLER)
+    {
+      if ((error_num = append_limit_sql_part(
+        result_list.internal_offset,
+        result_list.limit_num,
+        SPIDER_SQL_TYPE_HANDLER)))
+      {
+        DBUG_RETURN(error_num);
+      }
+    }
+
+    int roop_start, roop_end, roop_count, tmp_lock_mode, link_ok;
+    tmp_lock_mode = spider_conn_lock_mode(this);
+    if (tmp_lock_mode)
+    {
+      /* "for update" or "lock in share mode" */
+      link_ok = spider_conn_link_idx_next(share->link_statuses,
+        conn_link_idx, -1, share->link_count,
+        SPIDER_LINK_STATUS_OK);
+      roop_start = spider_conn_link_idx_next(share->link_statuses,
+        conn_link_idx, -1, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY);
+      roop_end = share->link_count;
+    } else {
+      link_ok = search_link_idx;
+      roop_start = search_link_idx;
+      roop_end = search_link_idx + 1;
+    }
+    for (roop_count = roop_start; roop_count < roop_end;
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        conn_link_idx, roop_count, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY)
+    ) {
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+      if (result_list.bgs_phase > 0)
+      {
+        if ((error_num = spider_check_and_init_casual_read(
+          wide_handler->trx->thd, this,
+          roop_count)))
+          DBUG_RETURN(error_num);
+        if ((error_num = spider_bg_conn_search(this, roop_count, roop_start,
+          TRUE, FALSE, (roop_count != link_ok))))
+        {
+          if (
+            error_num != HA_ERR_END_OF_FILE &&
+            share->monitoring_kind[roop_count] &&
+            need_mons[roop_count]
+          ) {
+            error_num = spider_ping_table_mon_from_table(
+                wide_handler->trx,
+                wide_handler->trx->thd,
+                share,
+                roop_count,
+                (uint32) share->monitoring_sid[roop_count],
+                share->table_name,
+                share->table_name_length,
+                conn_link_idx[roop_count],
+                NULL,
+                0,
+                share->monitoring_kind[roop_count],
+                share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
+                TRUE
+              );
+          }
+          DBUG_RETURN(check_error_mode_eof(error_num));
+        }
+      } else {
+#endif
+        uint dbton_id = share->use_sql_dbton_ids[roop_count];
+        spider_db_handler *dbton_hdl = dbton_handler[dbton_id];
+        SPIDER_CONN *conn = conns[roop_count];
+        pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+        if (dbton_hdl->need_lock_before_set_sql_for_exec(
+          SPIDER_SQL_TYPE_SELECT_SQL))
+        {
+          pthread_mutex_lock(&conn->mta_conn_mutex);
+          SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        }
+        if ((error_num = dbton_hdl->set_sql_for_exec(
+          SPIDER_SQL_TYPE_SELECT_SQL, roop_count)))
+        {
+          if (dbton_hdl->need_lock_before_set_sql_for_exec(
+            SPIDER_SQL_TYPE_SELECT_SQL))
+          {
+            SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+            pthread_mutex_unlock(&conn->mta_conn_mutex);
+          }
+          DBUG_RETURN(error_num);
+        }
+        if (!dbton_hdl->need_lock_before_set_sql_for_exec(
+          SPIDER_SQL_TYPE_SELECT_SQL))
+        {
+          pthread_mutex_lock(&conn->mta_conn_mutex);
+          SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        }
+        conn->need_mon = &need_mons[roop_count];
+        DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = TRUE;
+        conn->mta_conn_mutex_unlock_later = TRUE;
+        if ((error_num = spider_db_set_names(this, conn, roop_count)))
+        {
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+          if (
+            share->monitoring_kind[roop_count] &&
+            need_mons[roop_count]
+          ) {
+            error_num = spider_ping_table_mon_from_table(
+                wide_handler->trx,
+                wide_handler->trx->thd,
+                share,
+                roop_count,
+                (uint32) share->monitoring_sid[roop_count],
+                share->table_name,
+                share->table_name_length,
+                conn_link_idx[roop_count],
+                NULL,
+                0,
+                share->monitoring_kind[roop_count],
+                share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
+                TRUE
+              );
+          }
+          DBUG_RETURN(check_error_mode_eof(error_num));
+        }
+        spider_conn_set_timeout_from_share(conn, roop_count,
+          wide_handler->trx->thd, share);
+        if (dbton_hdl->execute_sql(
+          SPIDER_SQL_TYPE_SELECT_SQL,
+          conn,
+          result_list.quick_mode,
+          &need_mons[roop_count])
+        ) {
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          error_num = spider_db_errorno(conn);
+          if (
+            share->monitoring_kind[roop_count] &&
+            need_mons[roop_count]
+          ) {
+            error_num = spider_ping_table_mon_from_table(
+                wide_handler->trx,
+                wide_handler->trx->thd,
+                share,
+                roop_count,
+                (uint32) share->monitoring_sid[roop_count],
+                share->table_name,
+                share->table_name_length,
+                conn_link_idx[roop_count],
+                NULL,
+                0,
+                share->monitoring_kind[roop_count],
+                share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
+                TRUE
+              );
+          }
+          DBUG_RETURN(check_error_mode_eof(error_num));
+        }
+        connection_ids[roop_count] = conn->connection_id;
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        if (roop_count == link_ok)
+        {
+          if ((error_num = spider_db_store_result(this, roop_count, table)))
+          {
+            if (
+              error_num != HA_ERR_END_OF_FILE &&
+              share->monitoring_kind[roop_count] &&
+              need_mons[roop_count]
+            ) {
+              error_num = spider_ping_table_mon_from_table(
+                  wide_handler->trx,
+                  wide_handler->trx->thd,
+                  share,
+                  roop_count,
+                  (uint32) share->monitoring_sid[roop_count],
+                  share->table_name,
+                  share->table_name_length,
+                  conn_link_idx[roop_count],
+                  NULL,
+                  0,
+                  share->monitoring_kind[roop_count],
+                  share->monitoring_limit[roop_count],
+                  share->monitoring_flag[roop_count],
+                  TRUE
+                );
+            }
+            DBUG_RETURN(check_error_mode_eof(error_num));
+          }
+          result_link_idx = link_ok;
+        } else {
+          spider_db_discard_result(this, roop_count, conn);
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+        }
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+      }
+#endif
+    }
+  }
+
+  if (is_clone)
+  {
+    DBUG_PRINT("info",("spider set pt_clone_last_searcher to %p",
+      pt_clone_source_handler));
+    pt_clone_source_handler->pt_clone_last_searcher = this;
+  }
+  if (buf && (error_num = spider_db_seek_next(buf, this, search_link_idx,
+    table)))
+    DBUG_RETURN(check_error_mode_eof(error_num));
+  DBUG_RETURN(0);
+}
+
+int ha_spider::pre_ft_read(
+  bool use_parallel
+) {
+  DBUG_ENTER("ha_spider::pre_ft_read");
+  DBUG_PRINT("info",("spider this=%p", this));
+  check_pre_call(use_parallel);
+  if (use_pre_call)
+  {
+    store_error_num =
+      ft_read_internal(NULL);
+    DBUG_RETURN(store_error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::ft_read(
+  uchar *buf
+) {
+  int error_num;
+  DBUG_ENTER("ha_spider::ft_read");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (use_pre_call)
+  {
+    if (store_error_num)
+    {
+      if (store_error_num == HA_ERR_END_OF_FILE)
+        table->status = STATUS_NOT_FOUND;
+      DBUG_RETURN(store_error_num);
+    }
+    if ((error_num = spider_bg_all_conn_pre_next(this, search_link_idx)))
+      DBUG_RETURN(error_num);
+    use_pre_call = FALSE;
+  }
+  DBUG_RETURN(ft_read_internal(buf));
+}
+
+int ha_spider::info(
+  uint flag
+) {
+  int error_num;
+  THD *thd = ha_thd();
+  double sts_interval = spider_param_sts_interval(thd, share->sts_interval);
+  int sts_mode = spider_param_sts_mode(thd, share->sts_mode);
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  int sts_sync = spider_param_sts_sync(thd, share->sts_sync);
+#endif
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  int sts_bg_mode = spider_param_sts_bg_mode(thd, share->sts_bg_mode);
+#endif
+  SPIDER_INIT_ERROR_TABLE *spider_init_error_table = NULL;
+  set_error_mode();
+  backup_error_status();
+  DBUG_ENTER("ha_spider::info");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider flag=%x", flag));
+#ifdef HANDLER_HAS_CAN_USE_FOR_AUTO_INC_INIT
+  auto_inc_temporary = FALSE;
+#endif
+  wide_handler->sql_command = thd_sql_command(thd);
+/*
+  if (
+    sql_command == SQLCOM_DROP_TABLE ||
+    sql_command == SQLCOM_ALTER_TABLE ||
+    sql_command == SQLCOM_SHOW_CREATE
+  ) {
+*/
+    if (flag & HA_STATUS_AUTO)
+    {
+      if (share->lgtm_tblhnd_share->auto_increment_value)
+        stats.auto_increment_value =
+          share->lgtm_tblhnd_share->auto_increment_value;
+      else {
+        stats.auto_increment_value = 1;
+#ifdef HANDLER_HAS_CAN_USE_FOR_AUTO_INC_INIT
+        auto_inc_temporary = TRUE;
+#endif
+      }
+    }
+    if (
+      wide_handler->sql_command == SQLCOM_DROP_TABLE ||
+      wide_handler->sql_command == SQLCOM_ALTER_TABLE
+    )
+      DBUG_RETURN(0);
+/*
+  }
+*/
+
+  if (flag &
+    (HA_STATUS_TIME | HA_STATUS_CONST | HA_STATUS_VARIABLE | HA_STATUS_AUTO))
+  {
+    time_t tmp_time = (time_t) time((time_t*) 0);
+    DBUG_PRINT("info",
+      ("spider difftime=%f", difftime(tmp_time, share->sts_get_time)));
+    DBUG_PRINT("info",
+      ("spider sts_interval=%f", sts_interval));
+    int tmp_auto_increment_mode = 0;
+    if (flag & HA_STATUS_AUTO)
+    {
+      tmp_auto_increment_mode = spider_param_auto_increment_mode(thd,
+        share->auto_increment_mode);
+#ifdef HANDLER_HAS_NEED_INFO_FOR_AUTO_INC
+      info_auto_called = TRUE;
+#endif
+    }
+    if (!share->sts_init)
+    {
+      pthread_mutex_lock(&share->sts_mutex);
+      if (share->sts_init)
+        pthread_mutex_unlock(&share->sts_mutex);
+      else {
+        if ((spider_init_error_table =
+          spider_get_init_error_table(wide_handler->trx, share, FALSE)))
+        {
+          DBUG_PRINT("info",("spider diff=%f",
+            difftime(tmp_time, spider_init_error_table->init_error_time)));
+          if (difftime(tmp_time,
+            spider_init_error_table->init_error_time) <
+            spider_param_table_init_error_interval())
+          {
+            pthread_mutex_unlock(&share->sts_mutex);
+            if (wide_handler->sql_command == SQLCOM_SHOW_CREATE)
+            {
+              if (thd->is_error())
+              {
+                DBUG_PRINT("info", ("spider clear_error"));
+                thd->clear_error();
+              }
+              DBUG_RETURN(0);
+            }
+            if (spider_init_error_table->init_error_with_message)
+              my_message(spider_init_error_table->init_error,
+                spider_init_error_table->init_error_msg, MYF(0));
+            DBUG_RETURN(check_error_mode(spider_init_error_table->init_error));
+          }
+        }
+        pthread_mutex_unlock(&share->sts_mutex);
+        sts_interval = 0;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+        if (tmp_auto_increment_mode == 1)
+          sts_sync = 0;
+#endif
+      }
+    }
+    if (flag & HA_STATUS_AUTO)
+    {
+      if (
+        share->wide_share &&
+        tmp_auto_increment_mode == 1 &&
+        !share->lgtm_tblhnd_share->auto_increment_init
+      ) {
+        sts_interval = 0;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+        sts_sync = 0;
+#endif
+      }
+    }
+    if (difftime(tmp_time, share->sts_get_time) >= sts_interval)
+    {
+      if (
+        sts_interval == 0 ||
+        !pthread_mutex_trylock(&share->sts_mutex)
+      ) {
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+        if (sts_interval == 0 || sts_bg_mode == 0)
+        {
+#endif
+          if (sts_interval == 0)
+            pthread_mutex_lock(&share->sts_mutex);
+          if (difftime(tmp_time, share->sts_get_time) >= sts_interval)
+          {
+            if ((error_num = spider_check_trx_and_get_conn(ha_thd(), this,
+              FALSE)))
+            {
+              pthread_mutex_unlock(&share->sts_mutex);
+              if (!share->sts_init)
+              {
+                if (
+                  spider_init_error_table ||
+                  (spider_init_error_table =
+                    spider_get_init_error_table(wide_handler->trx,
+                      share, TRUE))
+                ) {
+                  spider_init_error_table->init_error = error_num;
+                  if ((spider_init_error_table->init_error_with_message =
+                    thd->is_error()))
+                    strmov(spider_init_error_table->init_error_msg,
+                      spider_stmt_da_message(thd));
+                  spider_init_error_table->init_error_time =
+                    (time_t) time((time_t*) 0);
+                }
+                share->init_error = TRUE;
+                share->init = TRUE;
+              }
+              if (wide_handler->sql_command == SQLCOM_SHOW_CREATE)
+              {
+                if (thd->is_error())
+                {
+                  DBUG_PRINT("info", ("spider clear_error"));
+                  thd->clear_error();
+                }
+                DBUG_RETURN(0);
+              }
+              DBUG_RETURN(check_error_mode(error_num));
+            }
+            if ((error_num = spider_get_sts(share, search_link_idx, tmp_time,
+                this, sts_interval, sts_mode,
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+                sts_sync,
+#endif
+                share->sts_init ? 2 : 1,
+                flag | (share->sts_init ? 0 : HA_STATUS_AUTO)))
+            ) {
+              pthread_mutex_unlock(&share->sts_mutex);
+              if (
+                share->monitoring_kind[search_link_idx] &&
+                need_mons[search_link_idx]
+              ) {
+                error_num = spider_ping_table_mon_from_table(
+                    wide_handler->trx,
+                    wide_handler->trx->thd,
+                    share,
+                    search_link_idx,
+                    (uint32) share->monitoring_sid[search_link_idx],
+                    share->table_name,
+                    share->table_name_length,
+                    conn_link_idx[search_link_idx],
+                    NULL,
+                    0,
+                    share->monitoring_kind[search_link_idx],
+                    share->monitoring_limit[search_link_idx],
+                    share->monitoring_flag[search_link_idx],
+                    TRUE
+                  );
+              }
+              if (!share->sts_init)
+              {
+                if (
+                  spider_init_error_table ||
+                  (spider_init_error_table =
+                    spider_get_init_error_table(wide_handler->trx,
+                      share, TRUE))
+                ) {
+                  spider_init_error_table->init_error = error_num;
+/*
+                  if (!thd->is_error())
+                    my_error(error_num, MYF(0), "");
+*/
+                  if ((spider_init_error_table->init_error_with_message =
+                    thd->is_error()))
+                    strmov(spider_init_error_table->init_error_msg,
+                      spider_stmt_da_message(thd));
+                  spider_init_error_table->init_error_time =
+                    (time_t) time((time_t*) 0);
+                }
+                share->init_error = TRUE;
+                share->init = TRUE;
+              }
+              if (wide_handler->sql_command == SQLCOM_SHOW_CREATE)
+              {
+                if (thd->is_error())
+                {
+                  DBUG_PRINT("info", ("spider clear_error"));
+                  thd->clear_error();
+                }
+                DBUG_RETURN(0);
+              }
+              DBUG_RETURN(check_error_mode(error_num));
+            }
+          }
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+        } else if (sts_bg_mode == 1) {
+          /* background */
+          if (!share->bg_sts_init || share->bg_sts_thd_wait)
+          {
+            share->bg_sts_thd_wait = FALSE;
+            share->bg_sts_try_time = tmp_time;
+            share->bg_sts_interval = sts_interval;
+            share->bg_sts_mode = sts_mode;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+            share->bg_sts_sync = sts_sync;
+#endif
+            if (!share->bg_sts_init)
+            {
+              if ((error_num = spider_create_sts_thread(share)))
+              {
+                pthread_mutex_unlock(&share->sts_mutex);
+                if (wide_handler->sql_command == SQLCOM_SHOW_CREATE)
+                {
+                  if (thd->is_error())
+                  {
+                    DBUG_PRINT("info", ("spider clear_error"));
+                    thd->clear_error();
+                  }
+                  DBUG_RETURN(0);
+                }
+                DBUG_RETURN(error_num);
+              }
+            } else
+              pthread_cond_signal(&share->bg_sts_cond);
+          }
+        } else {
+          share->bg_sts_try_time = tmp_time;
+          share->bg_sts_interval = sts_interval;
+          share->bg_sts_mode = sts_mode;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+          share->bg_sts_sync = sts_sync;
+#endif
+          spider_table_add_share_to_sts_thread(share);
+        }
+#endif
+        pthread_mutex_unlock(&share->sts_mutex);
+      }
+    }
+    if (flag & HA_STATUS_CONST)
+    {
+      if ((error_num = check_crd()))
+      {
+        if (wide_handler->sql_command == SQLCOM_SHOW_CREATE)
+        {
+          if (thd->is_error())
+          {
+            DBUG_PRINT("info", ("spider clear_error"));
+            thd->clear_error();
+          }
+          DBUG_RETURN(0);
+        }
+        DBUG_RETURN(error_num);
+      }
+      spider_db_set_cardinarity(this, table);
+    }
+
+    if (flag & HA_STATUS_TIME)
+      stats.update_time = (ulong) share->stat.update_time;
+    if (flag & (HA_STATUS_CONST | HA_STATUS_VARIABLE))
+    {
+      stats.max_data_file_length = share->stat.max_data_file_length;
+      stats.create_time = share->stat.create_time;
+      stats.block_size = spider_param_block_size(thd);
+    }
+    if (flag & HA_STATUS_VARIABLE)
+    {
+      stats.data_file_length = share->stat.data_file_length;
+      stats.index_file_length = share->stat.index_file_length;
+      stats.records = share->stat.records;
+      stats.mean_rec_length = share->stat.mean_rec_length;
+      stats.check_time = share->stat.check_time;
+      if (stats.records <= 1 /* && (flag & HA_STATUS_NO_LOCK) */ )
+        stats.records = 2;
+      stats.checksum = share->stat.checksum;
+      stats.checksum_null = share->stat.checksum_null;
+    }
+    if (flag & HA_STATUS_AUTO)
+    {
+#ifdef HANDLER_HAS_CAN_USE_FOR_AUTO_INC_INIT
+      auto_inc_temporary = FALSE;
+#endif
+      if (share->wide_share && table->next_number_field)
+      {
+        ulonglong first_value, nb_reserved_values;
+        if (
+          tmp_auto_increment_mode == 0 &&
+          !(
+            table->next_number_field->val_int() != 0 ||
+            (table->auto_increment_field_not_null &&
+              thd->variables.sql_mode & MODE_NO_AUTO_VALUE_ON_ZERO)
+          )
+        ) {
+          get_auto_increment(0, 0, 0, &first_value, &nb_reserved_values);
+          share->lgtm_tblhnd_share->auto_increment_value = first_value;
+          share->lgtm_tblhnd_share->auto_increment_lclval = first_value;
+          share->lgtm_tblhnd_share->auto_increment_init = TRUE;
+          DBUG_PRINT("info",("spider init auto_increment_lclval=%llu",
+            share->lgtm_tblhnd_share->auto_increment_lclval));
+          DBUG_PRINT("info",("spider auto_increment_value=%llu",
+            share->lgtm_tblhnd_share->auto_increment_value));
+          stats.auto_increment_value = first_value;
+        } else if (tmp_auto_increment_mode == 1 &&
+          !share->lgtm_tblhnd_share->auto_increment_init)
+        {
+          DBUG_PRINT("info",("spider auto_increment_value=%llu",
+            share->lgtm_tblhnd_share->auto_increment_value));
+          share->lgtm_tblhnd_share->auto_increment_lclval =
+            share->lgtm_tblhnd_share->auto_increment_value;
+          share->lgtm_tblhnd_share->auto_increment_init = TRUE;
+          stats.auto_increment_value =
+            share->lgtm_tblhnd_share->auto_increment_value;
+        } else {
+          DBUG_PRINT("info",("spider auto_increment_value=%llu",
+            share->lgtm_tblhnd_share->auto_increment_value));
+          stats.auto_increment_value =
+            share->lgtm_tblhnd_share->auto_increment_value;
+        }
+      } else {
+        stats.auto_increment_value =
+          share->lgtm_tblhnd_share->auto_increment_value;
+      }
+    }
+  }
+  if (flag & HA_STATUS_ERRKEY)
+    errkey = dup_key_idx;
+  DBUG_RETURN(0);
+}
+
+ha_rows ha_spider::records_in_range(
+  uint inx,
+  const key_range *start_key,
+  const key_range *end_key,
+  page_range *pages)
+{
+  int error_num;
+  THD *thd = ha_thd();
+  double crd_interval = spider_param_crd_interval(thd, share->crd_interval);
+  int crd_mode = spider_param_crd_mode(thd, share->crd_mode);
+  int crd_type = spider_param_crd_type(thd, share->crd_type);
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  int crd_sync = spider_param_crd_sync(thd, share->crd_sync);
+#endif
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  int crd_bg_mode = spider_param_crd_bg_mode(thd, share->crd_bg_mode);
+#endif
+  SPIDER_INIT_ERROR_TABLE *spider_init_error_table = NULL;
+  uint dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::records_in_range");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider inx=%u", inx));
+  time_t tmp_time = (time_t) time((time_t*) 0);
+  if (!share->crd_init)
+  {
+    pthread_mutex_lock(&share->crd_mutex);
+    if (share->crd_init)
+      pthread_mutex_unlock(&share->crd_mutex);
+    else {
+      if ((spider_init_error_table =
+        spider_get_init_error_table(wide_handler->trx, share, FALSE)))
+      {
+        DBUG_PRINT("info",("spider diff=%f",
+          difftime(tmp_time, spider_init_error_table->init_error_time)));
+        if (difftime(tmp_time,
+          spider_init_error_table->init_error_time) <
+          spider_param_table_init_error_interval())
+        {
+          pthread_mutex_unlock(&share->crd_mutex);
+          if (spider_init_error_table->init_error_with_message)
+            my_message(spider_init_error_table->init_error,
+              spider_init_error_table->init_error_msg, MYF(0));
+          if (check_error_mode(spider_init_error_table->init_error))
+            my_errno = spider_init_error_table->init_error;
+          DBUG_RETURN(HA_POS_ERROR);
+        }
+      }
+      pthread_mutex_unlock(&share->crd_mutex);
+      if (crd_mode == 3)
+        crd_mode = 1;
+      crd_interval = 0;
+    }
+  }
+  dbton_id = share->sql_dbton_ids[search_link_idx];
+  dbton_hdl = dbton_handler[dbton_id];
+  crd_mode = dbton_hdl->crd_mode_exchange(crd_mode);
+  if (crd_mode == 1 || crd_mode == 2)
+  {
+    DBUG_PRINT("info", ("spider static_key_cardinality[%u]=%lld", inx,
+      share->static_key_cardinality[inx]));
+    DBUG_PRINT("info",
+      ("spider difftime=%f", difftime(tmp_time, share->crd_get_time)));
+    DBUG_PRINT("info",
+      ("spider crd_interval=%f", crd_interval));
+    if (
+      share->static_key_cardinality[inx] == -1 &&
+      difftime(tmp_time, share->crd_get_time) >= crd_interval
+    ) {
+      if (!dml_inited)
+      {
+        if (unlikely((error_num = dml_init())))
+        {
+          if (check_error_mode(error_num))
+            my_errno = error_num;
+          DBUG_RETURN(HA_POS_ERROR);
+        }
+      }
+      if (
+        crd_interval == 0 ||
+        !pthread_mutex_trylock(&share->crd_mutex)
+      ) {
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+        if (crd_interval == 0 || crd_bg_mode == 0)
+        {
+#endif
+          if (crd_interval == 0)
+            pthread_mutex_lock(&share->crd_mutex);
+          if (difftime(tmp_time, share->crd_get_time) >= crd_interval)
+          {
+            if ((error_num = spider_get_crd(share, search_link_idx, tmp_time,
+              this, table, crd_interval, crd_mode,
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+              crd_sync,
+#endif
+              share->crd_init ? 2 : 1)))
+            {
+              pthread_mutex_unlock(&share->crd_mutex);
+              if (
+                share->monitoring_kind[search_link_idx] &&
+                need_mons[search_link_idx]
+              ) {
+                error_num = spider_ping_table_mon_from_table(
+                    wide_handler->trx,
+                    wide_handler->trx->thd,
+                    share,
+                    search_link_idx,
+                    (uint32) share->monitoring_sid[search_link_idx],
+                    share->table_name,
+                    share->table_name_length,
+                    conn_link_idx[search_link_idx],
+                    NULL,
+                    0,
+                    share->monitoring_kind[search_link_idx],
+                    share->monitoring_limit[search_link_idx],
+                    share->monitoring_flag[search_link_idx],
+                    TRUE
+                  );
+              }
+              if (!share->crd_init)
+              {
+                if (
+                  spider_init_error_table ||
+                  (spider_init_error_table =
+                    spider_get_init_error_table(wide_handler->trx,
+                      share, TRUE))
+                ) {
+                  spider_init_error_table->init_error = error_num;
+/*
+                  if (!thd->is_error())
+                    my_error(error_num, MYF(0), "");
+*/
+                  if ((spider_init_error_table->init_error_with_message =
+                    thd->is_error()))
+                    strmov(spider_init_error_table->init_error_msg,
+                      spider_stmt_da_message(thd));
+                  spider_init_error_table->init_error_time =
+                    (time_t) time((time_t*) 0);
+                }
+                share->init_error = TRUE;
+                share->init = TRUE;
+              }
+              if (check_error_mode(error_num))
+                my_errno = error_num;
+              DBUG_RETURN(HA_POS_ERROR);
+            }
+          }
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+        } else if (crd_bg_mode == 1) {
+          /* background */
+          if (!share->bg_crd_init || share->bg_crd_thd_wait)
+          {
+            share->bg_crd_thd_wait = FALSE;
+            share->bg_crd_try_time = tmp_time;
+            share->bg_crd_interval = crd_interval;
+            share->bg_crd_mode = crd_mode;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+            share->bg_crd_sync = crd_sync;
+#endif
+            if (!share->bg_crd_init)
+            {
+              if ((error_num = spider_create_crd_thread(share)))
+              {
+                pthread_mutex_unlock(&share->crd_mutex);
+                my_errno = error_num;
+                DBUG_RETURN(HA_POS_ERROR);
+              }
+            } else
+              pthread_cond_signal(&share->bg_crd_cond);
+          }
+        } else {
+          share->bg_crd_try_time = tmp_time;
+          share->bg_crd_interval = crd_interval;
+          share->bg_crd_mode = crd_mode;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+          share->bg_crd_sync = crd_sync;
+#endif
+          spider_table_add_share_to_crd_thread(share);
+        }
+#endif
+        pthread_mutex_unlock(&share->crd_mutex);
+      }
+    }
+
+    KEY *key_info = &table->key_info[inx];
+    key_part_map full_key_part_map =
+      make_prev_keypart_map(spider_user_defined_key_parts(key_info));
+    key_part_map start_key_part_map;
+    key_part_map end_key_part_map;
+    key_part_map tgt_key_part_map;
+    KEY_PART_INFO *key_part;
+    Field *field = NULL;
+    double rows = (double) share->stat.records;
+    double weight, rate;
+    DBUG_PRINT("info",("spider rows1=%f", rows));
+    if (start_key)
+      start_key_part_map = start_key->keypart_map & full_key_part_map;
+    else
+      start_key_part_map = 0;
+    if (end_key)
+      end_key_part_map = end_key->keypart_map & full_key_part_map;
+    else
+      end_key_part_map = 0;
+
+    if (!start_key_part_map && !end_key_part_map)
+    {
+      DBUG_RETURN(HA_POS_ERROR);
+    }
+    else if (start_key_part_map >= end_key_part_map)
+    {
+      tgt_key_part_map = start_key_part_map;
+    } else {
+      tgt_key_part_map = end_key_part_map;
+    }
+
+    if (crd_type == 0)
+      weight = spider_param_crd_weight(thd, share->crd_weight);
+    else
+      weight = 1;
+
+    if (share->static_key_cardinality[inx] == -1)
+    {
+      for (
+        key_part = key_info->key_part;
+        tgt_key_part_map > 1;
+        tgt_key_part_map >>= 1,
+        key_part++
+      ) {
+        field = key_part->field;
+        DBUG_PRINT("info",
+          ("spider field_index=%u",
+            field->field_index));
+        DBUG_PRINT("info",
+          ("spider cardinality=%lld", share->cardinality[field->field_index]));
+        if (share->cardinality[field->field_index] == -1)
+        {
+          DBUG_PRINT("info",
+            ("spider uninitialized column cardinality"));
+          DBUG_RETURN(HA_POS_ERROR);
+        }
+        if ((rate =
+          ((double) share->cardinality[field->field_index]) / weight) >= 1
+        ) {
+          if ((rows = rows / rate) < 2)
+          {
+            DBUG_PRINT("info",("spider rows2=%f then ret 2", rows));
+            DBUG_RETURN((ha_rows) 2);
+          }
+        }
+        if (crd_type == 1)
+          weight += spider_param_crd_weight(thd, share->crd_weight);
+        else if (crd_type == 2)
+          weight *= spider_param_crd_weight(thd, share->crd_weight);
+      }
+      field = key_part->field;
+      DBUG_PRINT("info",
+        ("spider field_index=%u",
+          field->field_index));
+      DBUG_PRINT("info",
+        ("spider cardinality=%lld", share->cardinality[field->field_index]));
+      if (share->cardinality[field->field_index] == -1)
+      {
+        DBUG_PRINT("info",
+          ("spider uninitialized column cardinality"));
+        DBUG_RETURN(HA_POS_ERROR);
+      }
+    }
+    if (
+      start_key_part_map >= end_key_part_map &&
+      start_key->flag == HA_READ_KEY_EXACT
+    ) {
+      if (share->static_key_cardinality[inx] == -1)
+      {
+        if ((rate =
+          ((double) share->cardinality[field->field_index]) / weight) >= 1)
+          rows = rows / rate;
+      } else {
+        rate = ((double) share->static_key_cardinality[inx]);
+        rows = rows / rate;
+      }
+    } else if (start_key_part_map == end_key_part_map)
+    {
+      if (share->static_key_cardinality[inx] == -1)
+      {
+        if ((rate =
+          ((double) share->cardinality[field->field_index]) / weight / 4) >= 1)
+          rows = rows / rate;
+      } else {
+        if ((rate =
+          ((double) share->static_key_cardinality[inx]) / 4) >= 1)
+          rows = rows / rate;
+      }
+    } else {
+      if (share->static_key_cardinality[inx] == -1)
+      {
+        if ((rate =
+          ((double) share->cardinality[field->field_index]) / weight / 16) >= 1)
+          rows = rows / rate;
+      } else {
+        if ((rate =
+          ((double) share->static_key_cardinality[inx]) / 16) >= 1)
+          rows = rows / rate;
+      }
+    }
+    if (rows < 2)
+    {
+      DBUG_PRINT("info",("spider rows3=%f then ret 2", rows));
+      DBUG_RETURN((ha_rows) 2);
+    }
+    DBUG_PRINT("info",("spider rows4=%f", rows));
+    DBUG_RETURN((ha_rows) rows);
+  } else if (crd_mode == 3)
+  {
+    if (!dml_inited)
+    {
+      if (unlikely((error_num = dml_init())))
+      {
+        if (check_error_mode(error_num))
+          my_errno = error_num;
+        DBUG_RETURN(HA_POS_ERROR);
+      }
+    }
+    result_list.key_info = &table->key_info[inx];
+    DBUG_RETURN(spider_db_explain_select(start_key, end_key, this,
+      search_link_idx));
+  }
+  DBUG_RETURN((ha_rows) spider_param_crd_weight(thd, share->crd_weight));
+}
+
+int ha_spider::check_crd()
+{
+  int error_num;
+  THD *thd = ha_thd();
+  double crd_interval = spider_param_crd_interval(thd, share->crd_interval);
+  int crd_mode = spider_param_crd_mode(thd, share->crd_mode);
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  int crd_sync = spider_param_crd_sync(thd, share->crd_sync);
+#endif
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  int crd_bg_mode = spider_param_crd_bg_mode(thd, share->crd_bg_mode);
+#endif
+  SPIDER_INIT_ERROR_TABLE *spider_init_error_table = NULL;
+  uint dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::check_crd");
+  DBUG_PRINT("info",("spider this=%p", this));
+  time_t tmp_time = (time_t) time((time_t*) 0);
+  if (!share->crd_init)
+  {
+    pthread_mutex_lock(&share->crd_mutex);
+    if (share->crd_init)
+      pthread_mutex_unlock(&share->crd_mutex);
+    else {
+      if ((spider_init_error_table =
+        spider_get_init_error_table(wide_handler->trx, share, FALSE)))
+      {
+        DBUG_PRINT("info",("spider diff=%f",
+          difftime(tmp_time, spider_init_error_table->init_error_time)));
+        if (difftime(tmp_time,
+          spider_init_error_table->init_error_time) <
+          spider_param_table_init_error_interval())
+        {
+          pthread_mutex_unlock(&share->crd_mutex);
+          if (spider_init_error_table->init_error_with_message)
+            my_message(spider_init_error_table->init_error,
+              spider_init_error_table->init_error_msg, MYF(0));
+          DBUG_RETURN(check_error_mode(spider_init_error_table->init_error));
+        }
+      }
+      pthread_mutex_unlock(&share->crd_mutex);
+      crd_interval = 0;
+    }
+  }
+  if (crd_mode == 3)
+    crd_mode = 1;
+  if ((error_num = spider_check_trx_and_get_conn(ha_thd(), this, FALSE)))
+  {
+    DBUG_RETURN(check_error_mode(error_num));
+  }
+  dbton_id = share->sql_dbton_ids[search_link_idx];
+  dbton_hdl = dbton_handler[dbton_id];
+  crd_mode = dbton_hdl->crd_mode_exchange(crd_mode);
+  DBUG_PRINT("info",
+    ("spider difftime=%f", difftime(tmp_time, share->crd_get_time)));
+  DBUG_PRINT("info",
+    ("spider crd_interval=%f", crd_interval));
+  if (difftime(tmp_time, share->crd_get_time) >= crd_interval)
+  {
+    if (
+      crd_interval == 0 ||
+      !pthread_mutex_trylock(&share->crd_mutex)
+    ) {
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+      if (crd_interval == 0 || crd_bg_mode == 0)
+      {
+#endif
+        if (crd_interval == 0)
+          pthread_mutex_lock(&share->crd_mutex);
+        if (difftime(tmp_time, share->crd_get_time) >= crd_interval)
+        {
+          if ((error_num = spider_get_crd(share, search_link_idx, tmp_time,
+            this, table, crd_interval, crd_mode,
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+            crd_sync,
+#endif
+            share->crd_init ? 2 : 1)))
+          {
+            pthread_mutex_unlock(&share->crd_mutex);
+            if (
+              share->monitoring_kind[search_link_idx] &&
+              need_mons[search_link_idx]
+            ) {
+              error_num = spider_ping_table_mon_from_table(
+                  wide_handler->trx,
+                  wide_handler->trx->thd,
+                  share,
+                  search_link_idx,
+                  (uint32) share->monitoring_sid[search_link_idx],
+                  share->table_name,
+                  share->table_name_length,
+                  conn_link_idx[search_link_idx],
+                  NULL,
+                  0,
+                  share->monitoring_kind[search_link_idx],
+                  share->monitoring_limit[search_link_idx],
+                  share->monitoring_flag[search_link_idx],
+                  TRUE
+                );
+            }
+            if (!share->crd_init)
+            {
+              if (
+                spider_init_error_table ||
+                (spider_init_error_table =
+                  spider_get_init_error_table(wide_handler->trx, share, TRUE))
+              ) {
+                spider_init_error_table->init_error = error_num;
+                if ((spider_init_error_table->init_error_with_message =
+                  thd->is_error()))
+                  strmov(spider_init_error_table->init_error_msg,
+                    spider_stmt_da_message(thd));
+                spider_init_error_table->init_error_time =
+                  (time_t) time((time_t*) 0);
+              }
+              share->init_error = TRUE;
+              share->init = TRUE;
+            }
+            DBUG_RETURN(check_error_mode(error_num));
+          }
+        }
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+      } else if (crd_bg_mode == 1) {
+        /* background */
+        if (!share->bg_crd_init || share->bg_crd_thd_wait)
+        {
+          share->bg_crd_thd_wait = FALSE;
+          share->bg_crd_try_time = tmp_time;
+          share->bg_crd_interval = crd_interval;
+          share->bg_crd_mode = crd_mode;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+          share->bg_crd_sync = crd_sync;
+#endif
+          if (!share->bg_crd_init)
+          {
+            if ((error_num = spider_create_crd_thread(share)))
+            {
+              pthread_mutex_unlock(&share->crd_mutex);
+              DBUG_RETURN(error_num);
+            }
+          } else
+            pthread_cond_signal(&share->bg_crd_cond);
+        }
+      } else {
+        share->bg_crd_try_time = tmp_time;
+        share->bg_crd_interval = crd_interval;
+        share->bg_crd_mode = crd_mode;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+        share->bg_crd_sync = crd_sync;
+#endif
+        spider_table_add_share_to_crd_thread(share);
+      }
+#endif
+      pthread_mutex_unlock(&share->crd_mutex);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::pre_records()
+{
+  int error_num;
+  backup_error_status();
+  DBUG_ENTER("ha_spider::pre_records");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (wide_handler->sql_command == SQLCOM_ALTER_TABLE)
+  {
+    DBUG_RETURN(0);
+  }
+  if (!(share->additional_table_flags & HA_HAS_RECORDS))
+  {
+    DBUG_RETURN(0);
+  }
+  THD *thd = wide_handler->trx->thd;
+  if (
+    spider_param_sync_autocommit(thd) &&
+    (!thd_test_options(thd, OPTION_NOT_AUTOCOMMIT | OPTION_BEGIN))
+  ) {
+    result_list.casual_read[search_link_idx] =
+      spider_param_casual_read(thd, share->casual_read);
+  }
+  if ((error_num = spider_db_simple_action(SPIDER_SIMPLE_RECORDS, this,
+    search_link_idx, TRUE)))
+  {
+    DBUG_RETURN(check_error_mode(error_num));
+  }
+  use_pre_action = TRUE;
+  DBUG_RETURN(0);
+}
+
+ha_rows ha_spider::records()
+{
+  int error_num;
+  backup_error_status();
+  DBUG_ENTER("ha_spider::records");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (wide_handler->sql_command == SQLCOM_ALTER_TABLE)
+  {
+    use_pre_action = FALSE;
+    DBUG_RETURN(0);
+  }
+  if (!(share->additional_table_flags & HA_HAS_RECORDS) && !this->result_list.direct_limit_offset)
+  {
+    DBUG_RETURN(handler::records());
+  }
+  if (!use_pre_action && !this->result_list.direct_limit_offset)
+  {
+    THD *thd = wide_handler->trx->thd;
+    if (
+      spider_param_sync_autocommit(thd) &&
+      (!thd_test_options(thd, OPTION_NOT_AUTOCOMMIT | OPTION_BEGIN))
+    ) {
+      result_list.casual_read[search_link_idx] =
+        spider_param_casual_read(thd, share->casual_read);
+    }
+  }
+  if ((error_num = spider_db_simple_action(SPIDER_SIMPLE_RECORDS, this,
+    search_link_idx, FALSE)))
+  {
+    use_pre_action = FALSE;
+    check_error_mode(error_num);
+    DBUG_RETURN(HA_POS_ERROR);
+  }
+  use_pre_action = FALSE;
+  share->stat.records = table_rows;
+  DBUG_RETURN(table_rows);
+}
+
+#ifdef HA_HAS_CHECKSUM_EXTENDED
+int ha_spider::pre_calculate_checksum()
+{
+  int error_num;
+  backup_error_status();
+  DBUG_ENTER("ha_spider::pre_calculate_checksum");
+  DBUG_PRINT("info",("spider this=%p", this));
+  THD *thd = wide_handler->trx->thd;
+  if (!dml_inited)
+  {
+    if (unlikely((error_num = dml_init())))
+    {
+      DBUG_RETURN(error_num);
+    }
+  }
+  if (
+    spider_param_sync_autocommit(thd) &&
+    (!thd_test_options(thd, OPTION_NOT_AUTOCOMMIT | OPTION_BEGIN))
+  ) {
+    result_list.casual_read[search_link_idx] =
+      spider_param_casual_read(thd, share->casual_read);
+  }
+  action_flags = T_EXTEND;
+  if ((error_num = spider_db_simple_action(SPIDER_SIMPLE_CHECKSUM_TABLE, this,
+    search_link_idx, TRUE)))
+  {
+    DBUG_RETURN(check_error_mode(error_num));
+  }
+  use_pre_action = TRUE;
+  DBUG_RETURN(0);
+}
+
+int ha_spider::calculate_checksum()
+{
+  int error_num;
+  backup_error_status();
+  DBUG_ENTER("ha_spider::calculate_checksum");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!dml_inited)
+  {
+    if (unlikely((error_num = dml_init())))
+    {
+      DBUG_RETURN(error_num);
+    }
+  }
+  if (!use_pre_action && !this->result_list.direct_limit_offset)
+  {
+    THD *thd = wide_handler->trx->thd;
+    if (
+      spider_param_sync_autocommit(thd) &&
+      (!thd_test_options(thd, OPTION_NOT_AUTOCOMMIT | OPTION_BEGIN))
+    ) {
+      result_list.casual_read[search_link_idx] =
+        spider_param_casual_read(thd, share->casual_read);
+    }
+  }
+  action_flags = T_EXTEND;
+  if ((error_num = spider_db_simple_action(SPIDER_SIMPLE_CHECKSUM_TABLE, this,
+    search_link_idx, FALSE)))
+  {
+    use_pre_action = FALSE;
+    DBUG_RETURN(check_error_mode(error_num));
+  }
+  use_pre_action = FALSE;
+  if (checksum_null)
+  {
+    share->stat.checksum_null = TRUE;
+    share->stat.checksum = 0;
+    stats.checksum_null = TRUE;
+    stats.checksum = 0;
+  } else {
+    share->stat.checksum_null = FALSE;
+    share->stat.checksum = (ha_checksum) checksum_val;
+    stats.checksum_null = FALSE;
+    stats.checksum = (ha_checksum) checksum_val;
+  }
+  DBUG_RETURN(0);
+}
+#endif
+
+const char *ha_spider::table_type() const
+{
+  DBUG_ENTER("ha_spider::table_type");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN("SPIDER");
+}
+
+ulonglong ha_spider::table_flags() const
+{
+  DBUG_ENTER("ha_spider::table_flags");
+  DBUG_PRINT("info",("spider this=%p", this));
+  ulonglong flags =
+    HA_REC_NOT_IN_SEQ |
+    HA_CAN_GEOMETRY |
+    HA_NULL_IN_KEY |
+    HA_CAN_INDEX_BLOBS |
+    HA_AUTO_PART_KEY |
+    HA_CAN_RTREEKEYS |
+    HA_PRIMARY_KEY_REQUIRED_FOR_DELETE |
+    /* HA_NO_PREFIX_CHAR_KEYS | */
+    HA_CAN_FULLTEXT |
+    HA_CAN_SQL_HANDLER |
+    HA_FILE_BASED |
+    HA_CAN_INSERT_DELAYED |
+    HA_CAN_BIT_FIELD |
+    HA_NO_COPY_ON_ALTER |
+    HA_BINLOG_ROW_CAPABLE |
+    HA_BINLOG_STMT_CAPABLE |
+    HA_PARTIAL_COLUMN_READ |
+#ifdef HA_SLOW_CMP_REF
+    HA_SLOW_CMP_REF |
+#endif
+#ifdef SPIDER_ENGINE_CONDITION_PUSHDOWN_IS_ALWAYS_ON
+    HA_CAN_TABLE_CONDITION_PUSHDOWN |
+#endif
+#ifdef HA_CAN_BULK_ACCESS
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    (support_bulk_access_hs() ? HA_CAN_BULK_ACCESS : 0) |
+#endif
+#endif
+    SPIDER_CAN_BG_SEARCH |
+    SPIDER_CAN_BG_INSERT |
+    SPIDER_CAN_BG_UPDATE |
+#ifdef HA_CAN_DIRECT_UPDATE_AND_DELETE
+    HA_CAN_DIRECT_UPDATE_AND_DELETE |
+#endif
+#ifdef HA_CAN_FORCE_BULK_UPDATE
+    (share && share->force_bulk_update ? HA_CAN_FORCE_BULK_UPDATE : 0) |
+#endif
+#ifdef HA_CAN_FORCE_BULK_DELETE
+    (share && share->force_bulk_delete ? HA_CAN_FORCE_BULK_DELETE : 0) |
+#endif
+    (share ? share->additional_table_flags : 0)
+  ;
+  DBUG_RETURN(flags);
+}
+
+ulong ha_spider::table_flags_for_partition()
+{
+  DBUG_ENTER("ha_spider::table_flags_for_partition");
+  DBUG_PRINT("info",("spider this=%p", this));
+  ulong flags =
+#ifdef HA_PT_CALL_AT_ONCE_STORE_LOCK
+    HA_PT_CALL_AT_ONCE_STORE_LOCK |
+#endif
+#ifdef HA_PT_CALL_AT_ONCE_EXTERNAL_LOCK
+    HA_PT_CALL_AT_ONCE_EXTERNAL_LOCK |
+#endif
+#ifdef HA_PT_CALL_AT_ONCE_START_STMT
+    HA_PT_CALL_AT_ONCE_START_STMT |
+#endif
+#ifdef HA_PT_CALL_AT_ONCE_EXTRA
+    HA_PT_CALL_AT_ONCE_EXTRA |
+#endif
+#ifdef HA_PT_CALL_AT_ONCE_COND_PUSH
+    HA_PT_CALL_AT_ONCE_COND_PUSH |
+#endif
+#ifdef HA_PT_CALL_AT_ONCE_INFO_PUSH
+    HA_PT_CALL_AT_ONCE_INFO_PUSH |
+#endif
+#ifdef HA_PT_CALL_AT_ONCE_TOP_TABLE
+    HA_PT_CALL_AT_ONCE_TOP_TABLE |
+#endif
+    0;
+  DBUG_RETURN(flags);
+}
+
+const char *ha_spider::index_type(
+  uint key_number
+) {
+  KEY *key_info = &table->key_info[key_number];
+  DBUG_ENTER("ha_spider::index_type");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider flags=%ld", key_info->flags));
+  DBUG_PRINT("info",("spider algorithm=%d", key_info->algorithm));
+  DBUG_RETURN(
+    (key_info->flags & HA_FULLTEXT) ? "FULLTEXT" :
+    (key_info->flags & HA_SPATIAL) ? "SPATIAL" :
+    (key_info->algorithm == HA_KEY_ALG_HASH) ? "HASH" :
+    (key_info->algorithm == HA_KEY_ALG_RTREE) ? "RTREE" :
+    "BTREE"
+  );
+}
+
+ulong ha_spider::index_flags(
+  uint idx,
+  uint part,
+  bool all_parts
+) const {
+  DBUG_ENTER("ha_spider::index_flags");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(
+    (table_share->key_info[idx].algorithm == HA_KEY_ALG_FULLTEXT) ?
+      0 :
+    (table_share->key_info[idx].algorithm == HA_KEY_ALG_HASH) ?
+      HA_ONLY_WHOLE_INDEX | HA_KEY_SCAN_NOT_ROR :
+    HA_READ_NEXT | HA_READ_PREV | HA_READ_ORDER | HA_READ_RANGE |
+    HA_KEYREAD_ONLY
+  );
+}
+
+uint ha_spider::max_supported_record_length() const
+{
+  DBUG_ENTER("ha_spider::max_supported_record_length");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(HA_MAX_REC_LENGTH);
+}
+
+uint ha_spider::max_supported_keys() const
+{
+  DBUG_ENTER("ha_spider::max_supported_keys");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(MAX_KEY);
+}
+
+uint ha_spider::max_supported_key_parts() const
+{
+  DBUG_ENTER("ha_spider::max_supported_key_parts");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(MAX_REF_PARTS);
+}
+
+uint ha_spider::max_supported_key_length() const
+{
+  DBUG_ENTER("ha_spider::max_supported_key_length");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(SPIDER_MAX_KEY_LENGTH);
+}
+
+uint ha_spider::max_supported_key_part_length() const
+{
+  DBUG_ENTER("ha_spider::max_supported_key_part_length");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(SPIDER_MAX_KEY_LENGTH);
+}
+
+uint8 ha_spider::table_cache_type()
+{
+  DBUG_ENTER("ha_spider::table_cache_type");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(HA_CACHE_TBL_NOCACHE);
+}
+
+#ifdef HANDLER_HAS_NEED_INFO_FOR_AUTO_INC
+bool ha_spider::need_info_for_auto_inc()
+{
+  THD *thd = ha_thd();
+  DBUG_ENTER("ha_spider::need_info_for_auto_inc");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider return=%s", (
+    !share->lgtm_tblhnd_share->auto_increment_init ||
+    (
+      !spider_param_auto_increment_mode(thd, share->auto_increment_mode) &&
+      !info_auto_called
+    )
+  ) ? "TRUE" : "FALSE"));
+  DBUG_RETURN((
+    !share->lgtm_tblhnd_share->auto_increment_init ||
+    (
+      !spider_param_auto_increment_mode(thd, share->auto_increment_mode) &&
+      !info_auto_called
+    )
+  ));
+}
+#endif
+
+#ifdef HANDLER_HAS_CAN_USE_FOR_AUTO_INC_INIT
+bool ha_spider::can_use_for_auto_inc_init()
+{
+  DBUG_ENTER("ha_spider::can_use_for_auto_inc_init");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider return=%s", (
+    !auto_inc_temporary
+  ) ? "TRUE" : "FALSE"));
+  DBUG_RETURN((
+    !auto_inc_temporary
+  ));
+}
+#endif
+
+int ha_spider::update_auto_increment()
+{
+  int error_num;
+  THD *thd = ha_thd();
+  int auto_increment_mode = spider_param_auto_increment_mode(thd,
+    share->auto_increment_mode);
+  bool lock_here = FALSE;
+  backup_error_status();
+  DBUG_ENTER("ha_spider::update_auto_increment");
+  DBUG_PRINT("info",("spider this=%p", this));
+  force_auto_increment = TRUE;
+/*
+  if (
+    next_insert_id >= auto_inc_interval_for_cur_row.maximum() &&
+    wide_handler->trx->thd->auto_inc_intervals_forced.get_current()
+  ) {
+    force_auto_increment = TRUE;
+    DBUG_PRINT("info",("spider force_auto_increment=TRUE"));
+  } else {
+    force_auto_increment = FALSE;
+    DBUG_PRINT("info",("spider force_auto_increment=FALSE"));
+  }
+*/
+  DBUG_PRINT("info",("spider auto_increment_mode=%d",
+    auto_increment_mode));
+  DBUG_PRINT("info",("spider next_number_field=%lld",
+    table->next_number_field->val_int()));
+  if (
+    auto_increment_mode == 1 &&
+    !(
+      table->next_number_field->val_int() != 0 ||
+      (table->auto_increment_field_not_null &&
+        thd->variables.sql_mode & MODE_NO_AUTO_VALUE_ON_ZERO)
+    )
+  ) {
+    lock_here = TRUE;
+    pthread_mutex_lock(&share->lgtm_tblhnd_share->auto_increment_mutex);
+    next_insert_id = share->lgtm_tblhnd_share->auto_increment_value;
+    DBUG_PRINT("info",("spider auto_increment_value=%llu",
+      share->lgtm_tblhnd_share->auto_increment_value));
+  }
+  if ((error_num = handler::update_auto_increment()))
+  {
+    if (lock_here)
+      pthread_mutex_unlock(&share->lgtm_tblhnd_share->auto_increment_mutex);
+    DBUG_RETURN(check_error_mode(error_num));
+  }
+  if (lock_here)
+  {
+    if (insert_id_for_cur_row)
+    {
+      share->lgtm_tblhnd_share->auto_increment_lclval =
+        insert_id_for_cur_row + 1;
+      share->lgtm_tblhnd_share->auto_increment_value = next_insert_id;
+      DBUG_PRINT("info",("spider after auto_increment_lclval=%llu",
+        share->lgtm_tblhnd_share->auto_increment_lclval));
+      DBUG_PRINT("info",("spider auto_increment_value=%llu",
+        share->lgtm_tblhnd_share->auto_increment_value));
+    }
+    pthread_mutex_unlock(&share->lgtm_tblhnd_share->auto_increment_mutex);
+  }
+  if (!store_last_insert_id)
+  {
+    store_last_insert_id = table->next_number_field->val_int();
+  }
+  DBUG_RETURN(0);
+}
+
+void ha_spider::get_auto_increment(
+  ulonglong offset,
+  ulonglong increment,
+  ulonglong nb_desired_values,
+  ulonglong *first_value,
+  ulonglong *nb_reserved_values
+) {
+  THD *thd = ha_thd();
+  int auto_increment_mode = spider_param_auto_increment_mode(thd,
+    share->auto_increment_mode);
+  DBUG_ENTER("ha_spider::get_auto_increment");
+  DBUG_PRINT("info",("spider this=%p", this));
+  *nb_reserved_values = ULONGLONG_MAX;
+  if (auto_increment_mode == 0)
+  {
+    /* strict mode */
+    int error_num;
+    extra(HA_EXTRA_KEYREAD);
+    if (index_init(table_share->next_number_index, TRUE))
+      goto error_index_init;
+    result_list.internal_limit = 1;
+    if (table_share->next_number_keypart)
+    {
+      uchar key[MAX_KEY_LENGTH];
+      key_copy(key, table->record[0],
+        &table->key_info[table_share->next_number_index],
+        table_share->next_number_key_offset);
+      error_num = index_read_last_map(table->record[1], key,
+        make_prev_keypart_map(table_share->next_number_keypart));
+    } else
+      error_num = index_last(table->record[1]);
+
+    if (error_num)
+      *first_value = 1;
+    else
+      *first_value = ((ulonglong) table->next_number_field->
+        val_int_offset(table_share->rec_buff_length) + 1);
+    index_end();
+    extra(HA_EXTRA_NO_KEYREAD);
+    DBUG_VOID_RETURN;
+
+error_index_init:
+    extra(HA_EXTRA_NO_KEYREAD);
+    *first_value = ~(ulonglong)0;
+    DBUG_VOID_RETURN;
+  } else {
+    if (auto_increment_mode != 1)
+      pthread_mutex_lock(&share->lgtm_tblhnd_share->auto_increment_mutex);
+    DBUG_PRINT("info",("spider before auto_increment_lclval=%llu",
+      share->lgtm_tblhnd_share->auto_increment_lclval));
+    *first_value = share->lgtm_tblhnd_share->auto_increment_lclval;
+    share->lgtm_tblhnd_share->auto_increment_lclval +=
+      nb_desired_values * increment;
+    DBUG_PRINT("info",("spider after auto_increment_lclval=%llu",
+      share->lgtm_tblhnd_share->auto_increment_lclval));
+    if (auto_increment_mode != 1)
+      pthread_mutex_unlock(&share->lgtm_tblhnd_share->auto_increment_mutex);
+  }
+  DBUG_VOID_RETURN;
+}
+
+int ha_spider::reset_auto_increment(
+  ulonglong value
+) {
+  DBUG_ENTER("ha_spider::reset_auto_increment");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (table->next_number_field)
+  {
+    pthread_mutex_lock(&share->lgtm_tblhnd_share->auto_increment_mutex);
+    share->lgtm_tblhnd_share->auto_increment_lclval = value;
+    share->lgtm_tblhnd_share->auto_increment_init = TRUE;
+    DBUG_PRINT("info",("spider init auto_increment_lclval=%llu",
+      share->lgtm_tblhnd_share->auto_increment_lclval));
+    pthread_mutex_unlock(&share->lgtm_tblhnd_share->auto_increment_mutex);
+  }
+  DBUG_RETURN(0);
+}
+
+void ha_spider::release_auto_increment()
+{
+  DBUG_ENTER("ha_spider::release_auto_increment");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+#ifdef SPIDER_HANDLER_START_BULK_INSERT_HAS_FLAGS
+void ha_spider::start_bulk_insert(
+  ha_rows rows,
+  uint flags
+)
+#else
+void ha_spider::start_bulk_insert(
+  ha_rows rows
+)
+#endif
+{
+  DBUG_ENTER("ha_spider::start_bulk_insert");
+  DBUG_PRINT("info",("spider this=%p", this));
+  bulk_insert = TRUE;
+  bulk_size = -1;
+  store_last_insert_id = 0;
+  bzero(&copy_info, sizeof(copy_info));
+  DBUG_VOID_RETURN;
+}
+
+int ha_spider::end_bulk_insert()
+{
+  int error_num;
+  backup_error_status();
+  DBUG_ENTER("ha_spider::end_bulk_insert");
+  DBUG_PRINT("info",("spider this=%p", this));
+  bulk_insert = FALSE;
+  if (bulk_size == -1)
+    DBUG_RETURN(0);
+  if ((error_num = spider_db_bulk_insert(this, table, &copy_info, TRUE)))
+    DBUG_RETURN(check_error_mode(error_num));
+  DBUG_RETURN(0);
+}
+
+int ha_spider::write_row(
+  const uchar *buf
+) {
+  int error_num;
+  THD *thd = ha_thd();
+  int auto_increment_mode = spider_param_auto_increment_mode(thd,
+    share->auto_increment_mode);
+  bool auto_increment_flag =
+    table->next_number_field && buf == table->record[0];
+  backup_error_status();
+  DBUG_ENTER("ha_spider::write_row");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (spider_param_read_only_mode(thd, share->read_only_mode))
+  {
+    my_printf_error(ER_SPIDER_READ_ONLY_NUM, ER_SPIDER_READ_ONLY_STR, MYF(0),
+      table_share->db.str, table_share->table_name.str);
+    DBUG_RETURN(ER_SPIDER_READ_ONLY_NUM);
+  }
+#ifdef HA_CAN_BULK_ACCESS
+  if (
+    bulk_access_executing &&
+    (
+      (
+        !is_bulk_access_clone &&
+        bulk_access_link_exec_tgt->called
+      ) ||
+      bulk_access_pre_called
+    )
+  ) {
+    ulonglong option_backup = 0;
+    if (is_bulk_access_clone)
+    {
+      bulk_access_pre_called = FALSE;
+      DBUG_RETURN(spider_db_bulk_bulk_insert(this));
+    }
+#if MYSQL_VERSION_ID < 50500
+    option_backup = thd->options;
+    thd->options &= ~OPTION_BIN_LOG;
+#else
+    option_backup = thd->variables.option_bits;
+    thd->variables.option_bits &= ~OPTION_BIN_LOG;
+#endif
+    error_num = bulk_access_link_exec_tgt->spider->ha_write_row(buf);
+#if MYSQL_VERSION_ID < 50500
+    thd->options = option_backup;
+#else
+    thd->variables.option_bits = option_backup;
+#endif
+    DBUG_RETURN(error_num);
+  }
+#endif
+  if (!dml_inited)
+  {
+    if (unlikely((error_num = dml_init())))
+    {
+      DBUG_RETURN(error_num);
+    }
+  }
+#ifndef SPIDER_WITHOUT_HA_STATISTIC_INCREMENT
+  ha_statistic_increment(&SSV::ha_write_count);
+#endif
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100000
+#else
+  if (table->timestamp_field_type & TIMESTAMP_AUTO_SET_ON_INSERT)
+    table->timestamp_field->set_time();
+#endif
+  if (!bulk_insert)
+    store_last_insert_id = 0;
+  if (auto_increment_flag)
+  {
+    if (auto_increment_mode == 3)
+    {
+      if (!table->auto_increment_field_not_null)
+      {
+#ifndef DBUG_OFF
+        MY_BITMAP *tmp_map =
+          dbug_tmp_use_all_columns(table, &table->write_set);
+#endif
+        table->next_number_field->store((longlong) 0, TRUE);
+#ifndef DBUG_OFF
+        dbug_tmp_restore_column_map(&table->write_set, tmp_map);
+#endif
+        force_auto_increment = FALSE;
+        table->file->insert_id_for_cur_row = 0;
+      }
+    } else if (auto_increment_mode == 2)
+    {
+#ifndef DBUG_OFF
+      MY_BITMAP *tmp_map =
+        dbug_tmp_use_all_columns(table, &table->write_set);
+#endif
+      table->next_number_field->store((longlong) 0, TRUE);
+      table->auto_increment_field_not_null = FALSE;
+#ifndef DBUG_OFF
+      dbug_tmp_restore_column_map(&table->write_set, tmp_map);
+#endif
+      force_auto_increment = FALSE;
+      table->file->insert_id_for_cur_row = 0;
+    } else {
+      if (!share->lgtm_tblhnd_share->auto_increment_init)
+      {
+        pthread_mutex_lock(&share->lgtm_tblhnd_share->auto_increment_mutex);
+        if (!share->lgtm_tblhnd_share->auto_increment_init)
+        {
+          info(HA_STATUS_AUTO);
+          share->lgtm_tblhnd_share->auto_increment_lclval =
+            stats.auto_increment_value;
+          share->lgtm_tblhnd_share->auto_increment_init = TRUE;
+          DBUG_PRINT("info",("spider init auto_increment_lclval=%llu",
+            share->lgtm_tblhnd_share->auto_increment_lclval));
+        }
+        pthread_mutex_unlock(&share->lgtm_tblhnd_share->auto_increment_mutex);
+      }
+      if ((error_num = update_auto_increment()))
+        DBUG_RETURN(error_num);
+    }
+  }
+  if (!bulk_insert || bulk_size < 0)
+  {
+    direct_dup_insert =
+      spider_param_direct_dup_insert(wide_handler->trx->thd,
+        share->direct_dup_insert);
+    DBUG_PRINT("info",("spider direct_dup_insert=%d", direct_dup_insert));
+    if ((error_num = spider_db_bulk_insert_init(this, table)))
+      DBUG_RETURN(check_error_mode(error_num));
+    if (bulk_insert)
+      bulk_size =
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+        (wide_handler->insert_with_update &&
+          !result_list.insert_dup_update_pushdown) ||
+#else
+        wide_handler->insert_with_update ||
+#endif
+        (!direct_dup_insert && wide_handler->ignore_dup_key) ?
+        0 : spider_param_bulk_size(wide_handler->trx->thd, share->bulk_size);
+    else
+      bulk_size = 0;
+  }
+  if ((error_num = spider_db_bulk_insert(this, table, &copy_info, FALSE)))
+    DBUG_RETURN(check_error_mode(error_num));
+
+#ifdef HA_CAN_BULK_ACCESS
+  /* bulk access disabled case (like using partitioning) */
+  if (bulk_access_executing && is_bulk_access_clone)
+  {
+    bulk_req_exec();
+    DBUG_RETURN(spider_db_bulk_bulk_insert(this));
+  }
+#endif
+  DBUG_RETURN(0);
+}
+
+#ifdef HA_CAN_BULK_ACCESS
+int ha_spider::pre_write_row(
+  uchar *buf
+) {
+  int error_num;
+  ulonglong option_backup = 0;
+  THD *thd = wide_handler->trx->thd;
+  DBUG_ENTER("ha_spider::pre_write_row");
+  DBUG_PRINT("info",("spider this=%p", this));
+#if MYSQL_VERSION_ID < 50500
+  option_backup = thd->options;
+  thd->options &= ~OPTION_BIN_LOG;
+#else
+  option_backup = thd->variables.option_bits;
+  thd->variables.option_bits &= ~OPTION_BIN_LOG;
+#endif
+  error_num = bulk_access_link_current->spider->ha_write_row(buf);
+  bulk_access_link_current->spider->bulk_access_pre_called = TRUE;
+  bulk_access_link_current->called = TRUE;
+#if MYSQL_VERSION_ID < 50500
+  thd->options = option_backup;
+#else
+  thd->variables.option_bits = option_backup;
+#endif
+  DBUG_RETURN(error_num);
+}
+#endif
+
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+void ha_spider::direct_update_init(
+  THD *thd,
+  bool hs_request
+) {
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  uint roop_count;
+#endif
+  DBUG_ENTER("ha_spider::direct_update_init");
+  DBUG_PRINT("info",("spider this=%p", this));
+  do_direct_update = TRUE;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (hs_request)
+  {
+    maybe_do_hs_direct_update = TRUE;
+    memset(do_hs_direct_update, 0, share->link_bitmap_size);
+    for (roop_count = 0; roop_count < share->link_count; roop_count++)
+    {
+      if (spider_param_use_hs_write(thd, share->use_hs_writes[roop_count]))
+      {
+        DBUG_PRINT("info",("spider do_hs_direct_update[%d]=TRUE",
+          roop_count));
+        spider_set_bit(do_hs_direct_update, roop_count);
+      } else {
+        maybe_do_hs_direct_update = FALSE;
+      }
+    }
+  } else {
+    maybe_do_hs_direct_update = FALSE;
+  }
+#endif
+  DBUG_VOID_RETURN;
+}
+#endif
+
+bool ha_spider::start_bulk_update(
+) {
+  DBUG_ENTER("ha_spider::start_bulk_update");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(check_and_start_bulk_update(SPD_BU_START_BY_BULK_INIT));
+}
+
+int ha_spider::exec_bulk_update(
+  ha_rows *dup_key_found
+) {
+  int error_num;
+  backup_error_status();
+  DBUG_ENTER("ha_spider::exec_bulk_update");
+  DBUG_PRINT("info",("spider this=%p", this));
+  *dup_key_found = 0;
+  if ((error_num = spider_db_bulk_update_end(this, dup_key_found)))
+    DBUG_RETURN(check_error_mode(error_num));
+  DBUG_RETURN(0);
+}
+
+int ha_spider::end_bulk_update(
+) {
+  int error_num;
+  backup_error_status();
+  DBUG_ENTER("ha_spider::end_bulk_update");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if ((error_num = check_and_end_bulk_update(SPD_BU_START_BY_BULK_INIT)))
+  {
+    if (check_error_mode(error_num))
+      DBUG_RETURN(error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+#ifdef SPIDER_UPDATE_ROW_HAS_CONST_NEW_DATA
+int ha_spider::bulk_update_row(
+  const uchar *old_data,
+  const uchar *new_data,
+  ha_rows *dup_key_found
+)
+#else
+int ha_spider::bulk_update_row(
+  const uchar *old_data,
+  uchar *new_data,
+  ha_rows *dup_key_found
+)
+#endif
+{
+  DBUG_ENTER("ha_spider::bulk_update_row");
+  DBUG_PRINT("info",("spider this=%p", this));
+  *dup_key_found = 0;
+  DBUG_RETURN(update_row(old_data, new_data));
+}
+
+#ifdef SPIDER_UPDATE_ROW_HAS_CONST_NEW_DATA
+int ha_spider::update_row(
+  const uchar *old_data,
+  const uchar *new_data
+)
+#else
+int ha_spider::update_row(
+  const uchar *old_data,
+  uchar *new_data
+)
+#endif
+{
+  int error_num;
+  THD *thd = ha_thd();
+  backup_error_status();
+  DBUG_ENTER("ha_spider::update_row");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (spider_param_read_only_mode(thd, share->read_only_mode))
+  {
+    my_printf_error(ER_SPIDER_READ_ONLY_NUM, ER_SPIDER_READ_ONLY_STR, MYF(0),
+      table_share->db.str, table_share->table_name.str);
+    DBUG_RETURN(ER_SPIDER_READ_ONLY_NUM);
+  }
+#ifdef HA_CAN_BULK_ACCESS
+  if (
+    bulk_access_executing && !is_bulk_access_clone &&
+    bulk_access_link_exec_tgt->called
+  ) {
+    ulonglong option_backup = 0;
+#if MYSQL_VERSION_ID < 50500
+    option_backup = thd->options;
+    thd->options &= ~OPTION_BIN_LOG;
+#else
+    option_backup = thd->variables.option_bits;
+    thd->variables.option_bits &= ~OPTION_BIN_LOG;
+#endif
+    error_num = bulk_access_link_exec_tgt->spider->ha_update_row(
+      old_data, new_data);
+#if MYSQL_VERSION_ID < 50500
+    thd->options = option_backup;
+#else
+    thd->variables.option_bits = option_backup;
+#endif
+    DBUG_RETURN(error_num);
+  }
+#endif
+#ifndef SPIDER_WITHOUT_HA_STATISTIC_INCREMENT
+  ha_statistic_increment(&SSV::ha_update_count);
+#endif
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  do_direct_update = FALSE;
+#endif
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100000
+#else
+  if (table->timestamp_field_type & TIMESTAMP_AUTO_SET_ON_UPDATE)
+    table->timestamp_field->set_time();
+#endif
+  if ((error_num = spider_db_update(this, table, old_data)))
+    DBUG_RETURN(check_error_mode(error_num));
+  if (table->found_next_number_field &&
+    new_data == table->record[0] &&
+    !table->s->next_number_keypart
+  ) {
+    pthread_mutex_lock(&share->lgtm_tblhnd_share->auto_increment_mutex);
+    if (!share->lgtm_tblhnd_share->auto_increment_init)
+    {
+      info(HA_STATUS_AUTO);
+      share->lgtm_tblhnd_share->auto_increment_lclval =
+        stats.auto_increment_value;
+      share->lgtm_tblhnd_share->auto_increment_init = TRUE;
+      DBUG_PRINT("info",("spider init auto_increment_lclval=%llu",
+        share->lgtm_tblhnd_share->auto_increment_lclval));
+    }
+    ulonglong tmp_auto_increment;
+    if (((Field_num *) table->found_next_number_field)->unsigned_flag)
+    {
+      tmp_auto_increment =
+        (ulonglong) table->found_next_number_field->val_int();
+    } else {
+      longlong tmp_auto_increment2 =
+        table->found_next_number_field->val_int();
+      if (tmp_auto_increment2 > 0)
+        tmp_auto_increment = tmp_auto_increment2;
+      else
+        tmp_auto_increment = 0;
+    }
+    if (tmp_auto_increment >= share->lgtm_tblhnd_share->auto_increment_lclval)
+    {
+      share->lgtm_tblhnd_share->auto_increment_lclval = tmp_auto_increment + 1;
+      share->lgtm_tblhnd_share->auto_increment_value = tmp_auto_increment + 1;
+      DBUG_PRINT("info",("spider after auto_increment_lclval=%llu",
+        share->lgtm_tblhnd_share->auto_increment_lclval));
+      DBUG_PRINT("info",("spider auto_increment_value=%llu",
+        share->lgtm_tblhnd_share->auto_increment_value));
+    }
+    pthread_mutex_unlock(&share->lgtm_tblhnd_share->auto_increment_mutex);
+  }
+  DBUG_RETURN(0);
+}
+
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+bool ha_spider::check_direct_update_sql_part(
+  st_select_lex *select_lex,
+  longlong select_limit,
+  longlong offset_limit
+) {
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::check_direct_update_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      dbton_hdl->check_direct_update(select_lex, select_limit, offset_limit)
+    ) {
+      DBUG_RETURN(TRUE);
+    }
+  }
+  DBUG_RETURN(FALSE);
+}
+
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS_WITH_HS
+#ifdef SPIDER_MDEV_16246
+int ha_spider::direct_update_rows_init(
+  List<Item> *update_fields,
+  uint mode,
+  KEY_MULTI_RANGE *ranges,
+  uint range_count,
+  bool sorted,
+  uchar *new_data
+)
+#else
+int ha_spider::direct_update_rows_init(
+  uint mode,
+  KEY_MULTI_RANGE *ranges,
+  uint range_count,
+  bool sorted,
+  uchar *new_data
+)
+#endif
+{
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  int error_num;
+#endif
+  st_select_lex *select_lex;
+  longlong select_limit;
+  longlong offset_limit;
+  THD *thd = wide_handler->trx->thd;
+  DBUG_ENTER("ha_spider::direct_update_rows_init");
+  DBUG_PRINT("info",("spider this=%p", this));
+#ifdef HA_CAN_BULK_ACCESS
+  if (
+    bulk_access_executing &&
+    (
+      (
+        !is_bulk_access_clone &&
+        bulk_access_link_exec_tgt->called
+      ) ||
+      bulk_access_pre_called
+    )
+  ) {
+    if (is_bulk_access_clone)
+    {
+      DBUG_PRINT("info",("spider return pre_direct_init_result %d",
+        pre_direct_init_result));
+      DBUG_RETURN(pre_direct_init_result);
+    }
+#ifdef SPIDER_MDEV_16246
+    DBUG_RETURN(bulk_access_link_exec_tgt->spider->direct_update_rows_init(
+      update_fields, mode, ranges, range_count, sorted, new_data));
+#else
+    DBUG_RETURN(bulk_access_link_exec_tgt->spider->direct_update_rows_init(
+      mode, ranges, range_count, sorted, new_data));
+#endif
+  }
+#endif
+  if (!dml_inited)
+  {
+    if (unlikely((error_num = dml_init())))
+    {
+      DBUG_RETURN(error_num);
+    }
+  }
+  direct_update_init(
+    thd,
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    sql_command == SQLCOM_HS_UPDATE
+#else
+    FALSE
+#endif
+  );
+  if (!condition)
+    cond_check = FALSE;
+  spider_get_select_limit(this, &select_lex, &select_limit, &offset_limit);
+  if (
+    !range_count &&
+    direct_update_fields
+  ) {
+    if (
+#if MYSQL_VERSION_ID < 50500
+      !thd->variables.engine_condition_pushdown ||
+#else
+#ifdef SPIDER_ENGINE_CONDITION_PUSHDOWN_IS_ALWAYS_ON
+#else
+      !(thd->variables.optimizer_switch &
+        OPTIMIZER_SWITCH_ENGINE_CONDITION_PUSHDOWN) ||
+#endif
+#endif
+      !select_lex ||
+      select_lex->table_list.elements != 1 ||
+      check_update_columns_sql_part() ||
+      check_direct_update_sql_part(select_lex, select_limit, offset_limit) ||
+      spider_db_append_condition(this, NULL, 0, TRUE)
+    ) {
+      DBUG_PRINT("info",("spider FALSE by condition"));
+      do_direct_update = FALSE;
+      DBUG_RETURN(HA_ERR_WRONG_COMMAND);
+    }
+    if (select_lex->order_list.elements)
+    {
+      ORDER *order;
+      for (order = (ORDER *) select_lex->order_list.first; order;
+        order = order->next)
+      {
+        if (check_item_type_sql((*order->item)))
+        {
+          DBUG_PRINT("info",("spider FALSE by order"));
+          do_direct_update = FALSE;
+          DBUG_RETURN(HA_ERR_WRONG_COMMAND);
+        }
+      }
+      result_list.direct_order_limit = TRUE;
+    }
+    wide_handler->trx->direct_update_count++;
+    DBUG_PRINT("info",("spider OK"));
+    DBUG_RETURN(0);
+  }
+
+  DBUG_PRINT("info",("spider offset_limit=%lld", offset_limit));
+  DBUG_PRINT("info",("spider mode=%u", mode));
+  DBUG_PRINT("info",("spider sql_command=%u", sql_command));
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  DBUG_PRINT("info",("spider maybe_do_hs_direct_update=%s",
+    maybe_do_hs_direct_update ? "TRUE" : "FALSE"));
+  DBUG_PRINT("info",("spider hs_pushed_ret_fields_num=%zu",
+    hs_pushed_ret_fields_num));
+#endif
+  DBUG_PRINT("info",("spider do_direct_update=%s",
+    do_direct_update ? "TRUE" : "FALSE"));
+  if (
+    (
+      !offset_limit
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      || (mode == 2 && maybe_do_hs_direct_update)
+#endif
+    ) &&
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    sql_command == SQLCOM_HS_UPDATE &&
+    hs_pushed_ret_fields_num < MAX_FIELDS &&
+#endif
+    do_direct_update
+  ) {
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    DBUG_PRINT("info",("spider pk_update=%s", pk_update ? "TRUE" : "FALSE"));
+    DBUG_PRINT("info",("spider start_key=%p", &ranges->start_key));
+    if (pk_update && spider_check_hs_pk_update(this, &ranges->start_key))
+    {
+      DBUG_PRINT("info",("spider FALSE by pk_update"));
+      do_direct_update = FALSE;
+      DBUG_RETURN(HA_ERR_WRONG_COMMAND);
+    }
+    if ((error_num = spider_check_trx_and_get_conn(thd, this, TRUE)))
+    {
+      DBUG_RETURN(error_num);
+    }
+#endif
+    wide_handler->trx->direct_update_count++;
+    DBUG_PRINT("info",("spider OK"));
+    DBUG_RETURN(0);
+  }
+  DBUG_PRINT("info",("spider FALSE by default"));
+  do_direct_update = FALSE;
+  DBUG_RETURN(HA_ERR_WRONG_COMMAND);
+}
+#else
+#ifdef SPIDER_MDEV_16246
+/**
+  Perform initialization for a direct update request.
+
+  @param  update fields       Pointer to the list of fields to update.
+
+  @return >0                  Error.
+          0                   Success.
+*/
+
+int ha_spider::direct_update_rows_init(
+  List<Item> *update_fields
+)
+#else
+int ha_spider::direct_update_rows_init()
+#endif
+{
+  st_select_lex *select_lex;
+  longlong select_limit;
+  longlong offset_limit;
+  List_iterator<Item> it(*wide_handler->direct_update_fields);
+  Item *item;
+  Field *field;
+  THD *thd = wide_handler->trx->thd;
+  DBUG_ENTER("ha_spider::direct_update_rows_init");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (thd->variables.time_zone != UTC)
+  {
+    while ((item = it++))
+    {
+      if (item->type() == Item::FIELD_ITEM)
+      {
+        field = ((Item_field *)item)->field;
+
+        if (field->type() == FIELD_TYPE_TIMESTAMP &&
+            field->flags & UNIQUE_KEY_FLAG)
+        {
+          /*
+            Spider cannot perform direct update on unique timestamp fields.
+            To avoid false duplicate key errors, the table needs to be
+            updated one row at a time.
+          */
+          DBUG_RETURN(HA_ERR_WRONG_COMMAND);
+        }
+      }
+    }
+  }
+#ifdef HA_CAN_BULK_ACCESS
+  if (
+    bulk_access_executing &&
+    (
+      (
+        !is_bulk_access_clone &&
+        bulk_access_link_exec_tgt->called
+      ) ||
+      bulk_access_pre_called
+    )
+  ) {
+    if (is_bulk_access_clone)
+    {
+      DBUG_PRINT("info",("spider return pre_direct_init_result %d",
+        pre_direct_init_result));
+      DBUG_RETURN(pre_direct_init_result);
+    }
+#ifdef SPIDER_MDEV_16246
+    DBUG_RETURN(bulk_access_link_exec_tgt->spider->
+      direct_update_rows_init(update_fields));
+#else
+    DBUG_RETURN(bulk_access_link_exec_tgt->spider->direct_update_rows_init());
+#endif
+  }
+#endif
+  if (!dml_inited)
+  {
+    if (unlikely(dml_init()))
+    {
+      DBUG_RETURN(HA_ERR_WRONG_COMMAND);
+    }
+  }
+  direct_update_init(
+    thd,
+    FALSE
+  );
+  if (!wide_handler->condition)
+    wide_handler->cond_check = FALSE;
+  spider_get_select_limit(this, &select_lex, &select_limit, &offset_limit);
+  if (wide_handler->direct_update_fields)
+  {
+    if (
+#if MYSQL_VERSION_ID < 50500
+      !thd->variables.engine_condition_pushdown ||
+#else
+#ifdef SPIDER_ENGINE_CONDITION_PUSHDOWN_IS_ALWAYS_ON
+#else
+      !(thd->variables.optimizer_switch &
+        OPTIMIZER_SWITCH_ENGINE_CONDITION_PUSHDOWN) ||
+#endif
+#endif
+      !select_lex ||
+      select_lex->table_list.elements != 1 ||
+      check_update_columns_sql_part() ||
+      check_direct_update_sql_part(select_lex, select_limit, offset_limit) ||
+      spider_db_append_condition(this, NULL, 0, TRUE)
+    ) {
+      DBUG_PRINT("info",("spider FALSE by condition"));
+      do_direct_update = FALSE;
+      DBUG_RETURN(HA_ERR_WRONG_COMMAND);
+    }
+    if (select_lex->order_list.elements)
+    {
+      ORDER *order;
+      for (order = (ORDER *) select_lex->order_list.first; order;
+        order = order->next)
+      {
+        if (check_item_type_sql((*order->item)))
+        {
+          DBUG_PRINT("info",("spider FALSE by order"));
+          do_direct_update = FALSE;
+          DBUG_RETURN(HA_ERR_WRONG_COMMAND);
+        }
+      }
+      result_list.direct_order_limit = TRUE;
+    }
+    wide_handler->trx->direct_update_count++;
+    DBUG_PRINT("info",("spider OK"));
+    DBUG_RETURN(0);
+  }
+
+  DBUG_PRINT("info",("spider offset_limit=%lld", offset_limit));
+  DBUG_PRINT("info",("spider sql_command=%u", wide_handler->sql_command));
+  DBUG_PRINT("info",("spider do_direct_update=%s",
+    do_direct_update ? "TRUE" : "FALSE"));
+  if (
+    !offset_limit &&
+    do_direct_update
+  ) {
+    wide_handler->trx->direct_update_count++;
+    DBUG_PRINT("info",("spider OK"));
+    DBUG_RETURN(0);
+  }
+  DBUG_PRINT("info",("spider FALSE by default"));
+  do_direct_update = FALSE;
+  DBUG_RETURN(HA_ERR_WRONG_COMMAND);
+}
+#endif
+
+#ifdef HA_CAN_BULK_ACCESS
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS_WITH_HS
+#ifdef SPIDER_MDEV_16246
+int ha_spider::pre_direct_update_rows_init(
+  List<Item> *update_fields,
+  uint mode,
+  KEY_MULTI_RANGE *ranges,
+  uint range_count,
+  bool sorted,
+  uchar *new_data
+)
+#else
+int ha_spider::pre_direct_update_rows_init(
+  uint mode,
+  KEY_MULTI_RANGE *ranges,
+  uint range_count,
+  bool sorted,
+  uchar *new_data
+)
+#endif
+{
+  int error_num;
+  DBUG_ENTER("ha_spider::pre_direct_update_rows_init");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (bulk_access_started)
+  {
+#ifdef SPIDER_MDEV_16246
+    error_num = bulk_access_link_current->spider->
+      pre_direct_update_rows_init(
+      update_fields, mode, ranges, range_count, sorted, new_data);
+#else
+    error_num = bulk_access_link_current->spider->
+      pre_direct_update_rows_init(
+      mode, ranges, range_count, sorted, new_data);
+#endif
+    bulk_access_link_current->spider->bulk_access_pre_called = TRUE;
+    bulk_access_link_current->called = TRUE;
+    DBUG_RETURN(error_num);
+  }
+  if (!dml_inited)
+  {
+    if (unlikely((error_num = dml_init())))
+    {
+      DBUG_RETURN(error_num);
+    }
+  }
+#ifdef SPIDER_MDEV_16246
+  pre_direct_init_result = direct_update_rows_init(
+    update_fields, mode, ranges, range_count, sorted, new_data);
+#else
+  pre_direct_init_result = direct_update_rows_init(
+    mode, ranges, range_count, sorted, new_data);
+#endif
+  DBUG_RETURN(pre_direct_init_result);
+}
+#else
+#ifdef SPIDER_MDEV_16246
+/**
+  Do initialization for performing parallel direct update
+  for a handlersocket update request.
+
+  @param  update fields       Pointer to the list of fields to update.
+
+  @return >0                  Error.
+          0                   Success.
+*/
+
+int ha_spider::pre_direct_update_rows_init(
+  List<Item> *update_fields
+)
+#else
+int ha_spider::pre_direct_update_rows_init()
+#endif
+{
+  int error_num;
+  DBUG_ENTER("ha_spider::pre_direct_update_rows_init");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (bulk_access_started)
+  {
+#ifdef SPIDER_MDEV_16246
+    error_num = bulk_access_link_current->spider->
+      pre_direct_update_rows_init(update_fields);
+#else
+    error_num = bulk_access_link_current->spider->
+      pre_direct_update_rows_init();
+#endif
+    bulk_access_link_current->spider->bulk_access_pre_called = TRUE;
+    bulk_access_link_current->called = TRUE;
+    DBUG_RETURN(error_num);
+  }
+  if (!dml_inited)
+  {
+    if (unlikely((error_num = dml_init())))
+    {
+      DBUG_RETURN(error_num);
+    }
+  }
+#ifdef SPIDER_MDEV_16246
+  pre_direct_init_result = direct_update_rows_init(update_fields);
+#else
+  pre_direct_init_result = direct_update_rows_init();
+#endif
+  DBUG_RETURN(pre_direct_init_result);
+}
+#endif
+#endif
+
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS_WITH_HS
+int ha_spider::direct_update_rows(
+  KEY_MULTI_RANGE *ranges,
+  uint range_count,
+  bool sorted,
+  uchar *new_data,
+  ha_rows *update_rows,
+  ha_rows *found_rows
+) {
+  int error_num;
+  THD *thd = ha_thd();
+  backup_error_status();
+  DBUG_ENTER("ha_spider::direct_update_rows");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (spider_param_read_only_mode(thd, share->read_only_mode))
+  {
+    my_printf_error(ER_SPIDER_READ_ONLY_NUM, ER_SPIDER_READ_ONLY_STR, MYF(0),
+      table_share->db.str, table_share->table_name.str);
+    DBUG_RETURN(ER_SPIDER_READ_ONLY_NUM);
+  }
+#ifdef HA_CAN_BULK_ACCESS
+  if (
+    bulk_access_executing &&
+    (
+      (
+        !is_bulk_access_clone &&
+        bulk_access_link_exec_tgt->called
+      ) ||
+      bulk_access_pre_called
+    )
+  ) {
+    if (is_bulk_access_clone)
+    {
+      bulk_access_pre_called = FALSE;
+      DBUG_RETURN(spider_db_bulk_direct_update(this, update_rows, found_rows));
+    }
+    DBUG_RETURN(bulk_access_link_exec_tgt->spider->ha_direct_update_rows(
+      ranges, range_count, sorted, new_data, update_rows, found_rows));
+  }
+#endif
+  if (
+    (active_index != MAX_KEY && (error_num = index_handler_init())) ||
+    (active_index == MAX_KEY && (error_num = rnd_handler_init())) ||
+    (error_num = spider_db_direct_update(this, table, ranges, range_count,
+      update_rows, found_rows))
+  )
+    DBUG_RETURN(check_error_mode(error_num));
+
+#ifdef HA_CAN_BULK_ACCESS
+  if (bulk_access_executing && is_bulk_access_clone)
+  {
+    bulk_req_exec();
+    DBUG_RETURN(spider_db_bulk_direct_update(this, update_rows, found_rows));
+  }
+#endif
+  DBUG_RETURN(0);
+}
+#else
+int ha_spider::direct_update_rows(
+  ha_rows *update_rows,
+  ha_rows *found_rows
+) {
+  int error_num;
+  THD *thd = ha_thd();
+  backup_error_status();
+  DBUG_ENTER("ha_spider::direct_update_rows");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (spider_param_read_only_mode(thd, share->read_only_mode))
+  {
+    my_printf_error(ER_SPIDER_READ_ONLY_NUM, ER_SPIDER_READ_ONLY_STR, MYF(0),
+      table_share->db.str, table_share->table_name.str);
+    DBUG_RETURN(ER_SPIDER_READ_ONLY_NUM);
+  }
+#ifdef HA_CAN_BULK_ACCESS
+  if (
+    bulk_access_executing &&
+    (
+      (
+        !is_bulk_access_clone &&
+        bulk_access_link_exec_tgt->called
+      ) ||
+      bulk_access_pre_called
+    )
+  ) {
+    if (is_bulk_access_clone)
+    {
+      bulk_access_pre_called = FALSE;
+      DBUG_RETURN(spider_db_bulk_direct_update(this, update_rows, found_rows));
+    }
+    DBUG_RETURN(bulk_access_link_exec_tgt->spider->ha_direct_update_rows(
+      update_rows, found_rows));
+  }
+#endif
+  if (
+    (active_index != MAX_KEY && (error_num = index_handler_init())) ||
+    (active_index == MAX_KEY && (error_num = rnd_handler_init())) ||
+    (error_num = spider_db_direct_update(this, table, update_rows, found_rows))
+  )
+    DBUG_RETURN(check_error_mode(error_num));
+
+#ifdef HA_CAN_BULK_ACCESS
+  if (bulk_access_executing && is_bulk_access_clone)
+  {
+    bulk_req_exec();
+    DBUG_RETURN(spider_db_bulk_direct_update(this, update_rows, found_rows));
+  }
+#endif
+  DBUG_RETURN(0);
+}
+#endif
+
+#ifdef HA_CAN_BULK_ACCESS
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS_WITH_HS
+int ha_spider::pre_direct_update_rows(
+  KEY_MULTI_RANGE *ranges,
+  uint range_count,
+  bool sorted,
+  uchar *new_data,
+  ha_rows *update_rows,
+  ha_rows *found_rows
+) {
+  DBUG_ENTER("ha_spider::pre_direct_update_rows");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(bulk_access_link_current->spider->ha_direct_update_rows(ranges,
+    range_count, sorted, new_data, update_rows, found_rows));
+}
+#else
+int ha_spider::pre_direct_update_rows()
+{
+  uint update_rows;
+  uint found_rows;
+  DBUG_ENTER("ha_spider::pre_direct_update_rows");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(bulk_access_link_current->spider->ha_direct_update_rows(
+    &update_rows, &found_rows));
+}
+#endif
+#endif
+#endif
+
+bool ha_spider::start_bulk_delete(
+) {
+  DBUG_ENTER("ha_spider::start_bulk_delete");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(check_and_start_bulk_update(SPD_BU_START_BY_BULK_INIT));
+}
+
+int ha_spider::end_bulk_delete(
+) {
+  int error_num;
+  backup_error_status();
+  DBUG_ENTER("ha_spider::end_bulk_delete");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if ((error_num = check_and_end_bulk_update(SPD_BU_START_BY_BULK_INIT)))
+    DBUG_RETURN(check_error_mode(error_num));
+  DBUG_RETURN(0);
+}
+
+int ha_spider::delete_row(
+  const uchar *buf
+) {
+  THD *thd = ha_thd();
+  int error_num;
+  backup_error_status();
+  DBUG_ENTER("ha_spider::delete_row");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (spider_param_read_only_mode(thd, share->read_only_mode))
+  {
+    my_printf_error(ER_SPIDER_READ_ONLY_NUM, ER_SPIDER_READ_ONLY_STR, MYF(0),
+      table_share->db.str, table_share->table_name.str);
+    DBUG_RETURN(ER_SPIDER_READ_ONLY_NUM);
+  }
+#ifdef HA_CAN_BULK_ACCESS
+  if (
+    bulk_access_executing && !is_bulk_access_clone &&
+    bulk_access_link_exec_tgt->called
+  ) {
+    ulonglong option_backup = 0;
+#if MYSQL_VERSION_ID < 50500
+    option_backup = thd->options;
+    thd->options &= ~OPTION_BIN_LOG;
+#else
+    option_backup = thd->variables.option_bits;
+    thd->variables.option_bits &= ~OPTION_BIN_LOG;
+#endif
+    error_num = bulk_access_link_exec_tgt->spider->ha_delete_row(buf);
+#if MYSQL_VERSION_ID < 50500
+    thd->options = option_backup;
+#else
+    thd->variables.option_bits = option_backup;
+#endif
+    DBUG_RETURN(error_num);
+  }
+#endif
+#ifndef SPIDER_WITHOUT_HA_STATISTIC_INCREMENT
+  ha_statistic_increment(&SSV::ha_delete_count);
+#endif
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  do_direct_update = FALSE;
+#endif
+  if ((error_num = spider_db_delete(this, table, buf)))
+    DBUG_RETURN(check_error_mode(error_num));
+  DBUG_RETURN(0);
+}
+
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+bool ha_spider::check_direct_delete_sql_part(
+  st_select_lex *select_lex,
+  longlong select_limit,
+  longlong offset_limit
+) {
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::check_direct_delete_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      dbton_hdl->check_direct_delete(select_lex, select_limit, offset_limit)
+    ) {
+      DBUG_RETURN(TRUE);
+    }
+  }
+  DBUG_RETURN(FALSE);
+}
+
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS_WITH_HS
+int ha_spider::direct_delete_rows_init(
+  uint mode,
+  KEY_MULTI_RANGE *ranges,
+  uint range_count,
+  bool sorted
+) {
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  int error_num;
+#endif
+  st_select_lex *select_lex;
+  longlong select_limit;
+  longlong offset_limit;
+  THD *thd = wide_handler->trx->thd;
+  DBUG_ENTER("ha_spider::direct_delete_rows_init");
+  DBUG_PRINT("info",("spider this=%p", this));
+#ifdef HA_CAN_BULK_ACCESS
+  if (
+    bulk_access_executing &&
+    (
+      (
+        !is_bulk_access_clone &&
+        bulk_access_link_exec_tgt->called
+      ) ||
+      bulk_access_pre_called
+    )
+  ) {
+    if (is_bulk_access_clone)
+    {
+      DBUG_RETURN(pre_direct_init_result);
+    }
+    DBUG_RETURN(bulk_access_link_exec_tgt->spider->direct_delete_rows_init(
+      mode, ranges, range_count, sorted));
+  }
+#endif
+  if (!dml_inited)
+  {
+    if (unlikely((error_num = dml_init())))
+    {
+      DBUG_RETURN(error_num);
+    }
+  }
+  direct_update_init(
+    thd,
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    sql_command == SQLCOM_HS_DELETE
+#else
+    FALSE
+#endif
+  );
+  if (!condition)
+    cond_check = FALSE;
+  spider_get_select_limit(this, &select_lex, &select_limit, &offset_limit);
+  if (!range_count)
+  {
+    if (
+#if MYSQL_VERSION_ID < 50500
+      !thd->variables.engine_condition_pushdown ||
+#else
+#ifdef SPIDER_ENGINE_CONDITION_PUSHDOWN_IS_ALWAYS_ON
+#else
+      !(thd->variables.optimizer_switch &
+        OPTIMIZER_SWITCH_ENGINE_CONDITION_PUSHDOWN) ||
+#endif
+#endif
+      !select_lex ||
+      select_lex->table_list.elements != 1 ||
+      check_direct_delete_sql_part(select_lex, select_limit, offset_limit) ||
+      spider_db_append_condition(this, NULL, 0, TRUE)
+    ) {
+      DBUG_PRINT("info",("spider FALSE by condition"));
+      do_direct_update = FALSE;
+      DBUG_RETURN(HA_ERR_WRONG_COMMAND);
+    }
+    if (select_lex->order_list.elements)
+    {
+      ORDER *order;
+      for (order = (ORDER *) select_lex->order_list.first; order;
+        order = order->next)
+      {
+        if (check_item_type_sql((*order->item)))
+        {
+          DBUG_PRINT("info",("spider FALSE by order"));
+          do_direct_update = FALSE;
+          DBUG_RETURN(HA_ERR_WRONG_COMMAND);
+        }
+      }
+      result_list.direct_order_limit = TRUE;
+    }
+    wide_handler->trx->direct_delete_count++;
+    DBUG_PRINT("info",("spider OK"));
+    DBUG_RETURN(0);
+  }
+
+  if (
+    (
+      !offset_limit
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      || (mode == 2 && maybe_do_hs_direct_update)
+#endif
+    ) &&
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    sql_command == SQLCOM_HS_DELETE &&
+#endif
+    do_direct_update
+  ) {
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    if ((error_num = spider_check_trx_and_get_conn(thd, this, TRUE)))
+    {
+      DBUG_RETURN(error_num);
+    }
+#endif
+    wide_handler->trx->direct_delete_count++;
+    DBUG_PRINT("info",("spider OK"));
+    DBUG_RETURN(0);
+  }
+  DBUG_PRINT("info",("spider FALSE by default"));
+  do_direct_update = FALSE;
+  DBUG_RETURN(HA_ERR_WRONG_COMMAND);
+}
+#else
+int ha_spider::direct_delete_rows_init()
+{
+  st_select_lex *select_lex;
+  longlong select_limit;
+  longlong offset_limit;
+  THD *thd = wide_handler->trx->thd;
+  DBUG_ENTER("ha_spider::direct_delete_rows_init");
+  DBUG_PRINT("info",("spider this=%p", this));
+#ifdef HA_CAN_BULK_ACCESS
+  if (
+    bulk_access_executing &&
+    (
+      (
+        !is_bulk_access_clone &&
+        bulk_access_link_exec_tgt->called
+      ) ||
+      bulk_access_pre_called
+    )
+  ) {
+    if (is_bulk_access_clone)
+    {
+      DBUG_RETURN(pre_direct_init_result);
+    }
+    DBUG_RETURN(bulk_access_link_exec_tgt->spider->direct_delete_rows_init());
+  }
+#endif
+  if (!dml_inited)
+  {
+    if (unlikely(dml_init()))
+    {
+      DBUG_RETURN(HA_ERR_WRONG_COMMAND);
+    }
+  }
+  direct_update_init(
+    thd,
+    FALSE
+  );
+  if (!wide_handler->condition)
+    wide_handler->cond_check = FALSE;
+  spider_get_select_limit(this, &select_lex, &select_limit, &offset_limit);
+  if (
+#if MYSQL_VERSION_ID < 50500
+    !thd->variables.engine_condition_pushdown ||
+#else
+#ifdef SPIDER_ENGINE_CONDITION_PUSHDOWN_IS_ALWAYS_ON
+#else
+    !(thd->variables.optimizer_switch &
+      OPTIMIZER_SWITCH_ENGINE_CONDITION_PUSHDOWN) ||
+#endif
+#endif
+    !select_lex ||
+    select_lex->table_list.elements != 1 ||
+    check_direct_delete_sql_part(select_lex, select_limit, offset_limit) ||
+    spider_db_append_condition(this, NULL, 0, TRUE)
+  ) {
+    DBUG_PRINT("info",("spider FALSE by condition"));
+    do_direct_update = FALSE;
+    DBUG_RETURN(HA_ERR_WRONG_COMMAND);
+  }
+  if (select_lex->order_list.elements)
+  {
+    ORDER *order;
+    for (order = (ORDER *) select_lex->order_list.first; order;
+      order = order->next)
+    {
+      if (check_item_type_sql((*order->item)))
+      {
+        DBUG_PRINT("info",("spider FALSE by order"));
+        do_direct_update = FALSE;
+        DBUG_RETURN(HA_ERR_WRONG_COMMAND);
+      }
+    }
+    result_list.direct_order_limit = TRUE;
+  }
+  wide_handler->trx->direct_delete_count++;
+  DBUG_PRINT("info",("spider OK"));
+  DBUG_RETURN(0);
+}
+#endif
+
+#ifdef HA_CAN_BULK_ACCESS
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS_WITH_HS
+int ha_spider::pre_direct_delete_rows_init(
+  uint mode,
+  KEY_MULTI_RANGE *ranges,
+  uint range_count,
+  bool sorted
+) {
+  int error_num;
+  DBUG_ENTER("ha_spider::pre_direct_delete_rows_init");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (bulk_access_started)
+  {
+    error_num = bulk_access_link_current->spider->
+      pre_direct_delete_rows_init(
+      mode, ranges, range_count, sorted);
+    bulk_access_link_current->spider->bulk_access_pre_called = TRUE;
+    bulk_access_link_current->called = TRUE;
+    DBUG_RETURN(error_num);
+  }
+  if (!dml_inited)
+  {
+    if (unlikely((error_num = dml_init())))
+    {
+      DBUG_RETURN(error_num);
+    }
+  }
+  pre_direct_init_result = direct_delete_rows_init(
+    mode, ranges, range_count, sorted);
+  DBUG_RETURN(pre_direct_init_result);
+}
+#else
+int ha_spider::pre_direct_delete_rows_init()
+{
+  int error_num;
+  DBUG_ENTER("ha_spider::pre_direct_delete_rows_init");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (bulk_access_started)
+  {
+    error_num = bulk_access_link_current->spider->
+      pre_direct_delete_rows_init();
+    bulk_access_link_current->spider->bulk_access_pre_called = TRUE;
+    bulk_access_link_current->called = TRUE;
+    DBUG_RETURN(error_num);
+  }
+  if (!dml_inited)
+  {
+    if (unlikely((error_num = dml_init())))
+    {
+      DBUG_RETURN(error_num);
+    }
+  }
+  pre_direct_init_result = direct_delete_rows_init();
+  DBUG_RETURN(pre_direct_init_result);
+}
+#endif
+#endif
+
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS_WITH_HS
+int ha_spider::direct_delete_rows(
+  KEY_MULTI_RANGE *ranges,
+  uint range_count,
+  bool sorted,
+  ha_rows *delete_rows
+) {
+  int error_num;
+  THD *thd = ha_thd();
+  backup_error_status();
+  DBUG_ENTER("ha_spider::direct_delete_rows");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (spider_param_read_only_mode(thd, share->read_only_mode))
+  {
+    my_printf_error(ER_SPIDER_READ_ONLY_NUM, ER_SPIDER_READ_ONLY_STR, MYF(0),
+      table_share->db.str, table_share->table_name.str);
+    DBUG_RETURN(ER_SPIDER_READ_ONLY_NUM);
+  }
+#ifdef HA_CAN_BULK_ACCESS
+  if (
+    bulk_access_executing &&
+    (
+      (
+        !is_bulk_access_clone &&
+        bulk_access_link_exec_tgt->called
+      ) ||
+      bulk_access_pre_called
+    )
+  ) {
+    if (is_bulk_access_clone)
+    {
+      bulk_access_pre_called = FALSE;
+      DBUG_RETURN(spider_db_bulk_direct_update(this, delete_rows));
+    }
+    DBUG_RETURN(bulk_access_link_exec_tgt->spider->ha_direct_delete_rows(
+      ranges, range_count, sorted, delete_rows));
+  }
+#endif
+  if (
+    (active_index != MAX_KEY && (error_num = index_handler_init())) ||
+    (active_index == MAX_KEY && (error_num = rnd_handler_init())) ||
+    (error_num = spider_db_direct_delete(this, table, ranges, range_count,
+      delete_rows))
+  )
+    DBUG_RETURN(check_error_mode(error_num));
+
+#ifdef HA_CAN_BULK_ACCESS
+  if (bulk_access_executing && is_bulk_access_clone)
+  {
+    bulk_req_exec();
+    DBUG_RETURN(spider_db_bulk_direct_update(this, delete_rows));
+  }
+#endif
+  DBUG_RETURN(0);
+}
+#else
+int ha_spider::direct_delete_rows(
+  ha_rows *delete_rows
+) {
+  int error_num;
+  THD *thd = ha_thd();
+  backup_error_status();
+  DBUG_ENTER("ha_spider::direct_delete_rows");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (spider_param_read_only_mode(thd, share->read_only_mode))
+  {
+    my_printf_error(ER_SPIDER_READ_ONLY_NUM, ER_SPIDER_READ_ONLY_STR, MYF(0),
+      table_share->db.str, table_share->table_name.str);
+    DBUG_RETURN(ER_SPIDER_READ_ONLY_NUM);
+  }
+#ifdef HA_CAN_BULK_ACCESS
+  if (
+    bulk_access_executing &&
+    (
+      (
+        !is_bulk_access_clone &&
+        bulk_access_link_exec_tgt->called
+      ) ||
+      bulk_access_pre_called
+    )
+  ) {
+    if (is_bulk_access_clone)
+    {
+      bulk_access_pre_called = FALSE;
+      DBUG_RETURN(spider_db_bulk_direct_update(this, delete_rows));
+    }
+    DBUG_RETURN(bulk_access_link_exec_tgt->spider->ha_direct_delete_rows(
+      delete_rows));
+  }
+#endif
+  if (
+    (active_index != MAX_KEY && (error_num = index_handler_init())) ||
+    (active_index == MAX_KEY && (error_num = rnd_handler_init())) ||
+    (error_num = spider_db_direct_delete(this, table, delete_rows))
+  )
+    DBUG_RETURN(check_error_mode(error_num));
+
+#ifdef HA_CAN_BULK_ACCESS
+  if (bulk_access_executing && is_bulk_access_clone)
+  {
+    bulk_req_exec();
+    DBUG_RETURN(spider_db_bulk_direct_update(this, delete_rows));
+  }
+#endif
+  DBUG_RETURN(0);
+}
+#endif
+
+#ifdef HA_CAN_BULK_ACCESS
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS_WITH_HS
+int ha_spider::pre_direct_delete_rows(
+  KEY_MULTI_RANGE *ranges,
+  uint range_count,
+  bool sorted,
+  ha_rows *delete_rows
+) {
+  DBUG_ENTER("ha_spider::pre_direct_delete_rows");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(bulk_access_link_current->spider->ha_direct_delete_rows(
+    ranges, range_count, sorted, delete_rows));
+}
+#else
+int ha_spider::pre_direct_delete_rows()
+{
+  uint delete_rows;
+  DBUG_ENTER("ha_spider::pre_direct_delete_rows");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(bulk_access_link_current->spider->ha_direct_delete_rows(
+    &delete_rows));
+}
+#endif
+#endif
+#endif
+
+int ha_spider::delete_all_rows()
+{
+  int error_num, roop_count;
+  THD *thd = ha_thd();
+  backup_error_status();
+  DBUG_ENTER("ha_spider::delete_all_rows");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (spider_param_delete_all_rows_type(thd, share->delete_all_rows_type))
+    DBUG_RETURN(HA_ERR_WRONG_COMMAND);
+  if (spider_param_read_only_mode(thd, share->read_only_mode))
+  {
+    my_printf_error(ER_SPIDER_READ_ONLY_NUM, ER_SPIDER_READ_ONLY_STR, MYF(0),
+      table_share->db.str, table_share->table_name.str);
+    DBUG_RETURN(ER_SPIDER_READ_ONLY_NUM);
+  }
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  do_direct_update = FALSE;
+#endif
+  sql_kinds = SPIDER_SQL_KIND_SQL;
+  for (roop_count = 0; roop_count < (int) share->link_count; roop_count++)
+    sql_kind[roop_count] = SPIDER_SQL_KIND_SQL;
+  if ((error_num = spider_db_delete_all_rows(this)))
+    DBUG_RETURN(check_error_mode(error_num));
+  if (wide_handler->sql_command == SQLCOM_TRUNCATE &&
+    table->found_next_number_field)
+  {
+    DBUG_PRINT("info",("spider reset auto increment"));
+    pthread_mutex_lock(&share->lgtm_tblhnd_share->auto_increment_mutex);
+    share->lgtm_tblhnd_share->auto_increment_lclval = 1;
+    share->lgtm_tblhnd_share->auto_increment_init = FALSE;
+    share->lgtm_tblhnd_share->auto_increment_value = 1;
+    DBUG_PRINT("info",("spider init auto_increment_lclval=%llu",
+      share->lgtm_tblhnd_share->auto_increment_lclval));
+    DBUG_PRINT("info",("spider auto_increment_value=%llu",
+      share->lgtm_tblhnd_share->auto_increment_value));
+    pthread_mutex_unlock(&share->lgtm_tblhnd_share->auto_increment_mutex);
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::truncate()
+{
+  int error_num, roop_count;
+  THD *thd = ha_thd();
+  backup_error_status();
+  DBUG_ENTER("ha_spider::truncate");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (spider_param_read_only_mode(thd, share->read_only_mode))
+  {
+    my_printf_error(ER_SPIDER_READ_ONLY_NUM, ER_SPIDER_READ_ONLY_STR, MYF(0),
+      table_share->db.str, table_share->table_name.str);
+    DBUG_RETURN(ER_SPIDER_READ_ONLY_NUM);
+  }
+  wide_handler->sql_command = SQLCOM_TRUNCATE;
+  if ((error_num = spider_check_trx_and_get_conn(thd, this, FALSE)))
+  {
+    DBUG_RETURN(error_num);
+  }
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  do_direct_update = FALSE;
+#endif
+  sql_kinds = SPIDER_SQL_KIND_SQL;
+  for (roop_count = 0; roop_count < (int) share->link_count; roop_count++)
+    sql_kind[roop_count] = SPIDER_SQL_KIND_SQL;
+  if ((error_num = spider_db_delete_all_rows(this)))
+    DBUG_RETURN(check_error_mode(error_num));
+  if (wide_handler->sql_command == SQLCOM_TRUNCATE &&
+    table->found_next_number_field)
+  {
+    DBUG_PRINT("info",("spider reset auto increment"));
+    pthread_mutex_lock(&share->lgtm_tblhnd_share->auto_increment_mutex);
+    share->lgtm_tblhnd_share->auto_increment_lclval = 1;
+    share->lgtm_tblhnd_share->auto_increment_init = FALSE;
+    share->lgtm_tblhnd_share->auto_increment_value = 1;
+    DBUG_PRINT("info",("spider init auto_increment_lclval=%llu",
+      share->lgtm_tblhnd_share->auto_increment_lclval));
+    DBUG_PRINT("info",("spider auto_increment_value=%llu",
+      share->lgtm_tblhnd_share->auto_increment_value));
+    pthread_mutex_unlock(&share->lgtm_tblhnd_share->auto_increment_mutex);
+  }
+  DBUG_RETURN(0);
+}
+
+#ifdef HA_CAN_BULK_ACCESS
+void ha_spider::bulk_req_exec()
+{
+  int need_mon;
+  SPIDER_CONN *conn = wide_handler->trx->bulk_access_conn_first;
+  DBUG_ENTER("ha_spider::bulk_req_exec");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider trx=%p", wide_handler->trx));
+  DBUG_PRINT("info",("spider first_conn=%p", conn));
+  while (conn)
+  {
+    DBUG_PRINT("info",("spider conn=%p", conn));
+    DBUG_PRINT("info",("spider conn->bulk_access_requests=%u",
+      conn->bulk_access_requests));
+    if (conn->bulk_access_requests)
+    {
+      spider_bg_conn_wait(conn);
+      pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+      pthread_mutex_lock(&conn->mta_conn_mutex);
+      SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      conn->need_mon = &need_mon;
+      DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = TRUE;
+      conn->mta_conn_mutex_unlock_later = TRUE;
+      /* currently only used for HS */
+      conn->bulk_access_error_num = 0;
+      if (spider_db_query(
+        conn,
+        NULL,
+        0,
+        -1,
+        &need_mon)
+      ) {
+        conn->bulk_access_error_num = spider_db_errorno(conn);
+      }
+/*
+      conn->bulk_access_sended += conn->bulk_access_requests;
+*/
+      conn->bulk_access_requests = 0;
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+    }
+    conn = conn->bulk_access_next;
+  }
+  wide_handler->trx->bulk_access_conn_first = NULL;
+  DBUG_VOID_RETURN;
+}
+#endif
+
+double ha_spider::scan_time()
+{
+  DBUG_ENTER("ha_spider::scan_time");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider scan_time = %.6f",
+    share->scan_rate * share->stat.records * share->stat.mean_rec_length + 2));
+  DBUG_RETURN(share->scan_rate * share->stat.records *
+    share->stat.mean_rec_length + 2);
+}
+
+double ha_spider::read_time(
+  uint index,
+  uint ranges,
+  ha_rows rows
+) {
+  DBUG_ENTER("ha_spider::read_time");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (wide_handler->keyread)
+  {
+    DBUG_PRINT("info",("spider read_time(keyread) = %.6f",
+      share->read_rate * table->key_info[index].key_length *
+      rows / 2 + 2));
+    DBUG_RETURN(share->read_rate * table->key_info[index].key_length *
+      rows / 2 + 2);
+  } else {
+    DBUG_PRINT("info",("spider read_time = %.6f",
+      share->read_rate * share->stat.mean_rec_length * rows + 2));
+    DBUG_RETURN(share->read_rate * share->stat.mean_rec_length * rows + 2);
+  }
+}
+
+const key_map *ha_spider::keys_to_use_for_scanning()
+{
+  DBUG_ENTER("ha_spider::keys_to_use_for_scanning");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(&key_map_full);
+}
+
+ha_rows ha_spider::estimate_rows_upper_bound()
+{
+  DBUG_ENTER("ha_spider::estimate_rows_upper_bound");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(HA_POS_ERROR);
+}
+
+void ha_spider::print_error(
+  int error,
+  myf errflag
+) {
+  DBUG_ENTER("ha_spider::print_error");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!current_thd->is_error())
+  {
+    switch (error)
+    {
+      case ER_SPIDER_CON_COUNT_ERROR:
+        my_message(error, ER_SPIDER_CON_COUNT_ERROR_STR, MYF(0));
+        break;
+      default:
+        handler::print_error(error, errflag);
+        break;
+    }
+  }
+  DBUG_VOID_RETURN;
+}
+
+bool ha_spider::get_error_message(
+  int error,
+  String *buf
+) {
+  DBUG_ENTER("ha_spider::get_error_message");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (error)
+  {
+    case ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM:
+      if (buf->reserve(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_LEN))
+        DBUG_RETURN(TRUE);
+      buf->q_append(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_STR,
+        ER_SPIDER_REMOTE_SERVER_GONE_AWAY_LEN);
+      break;
+    default:
+      if (buf->reserve(ER_SPIDER_UNKNOWN_LEN))
+        DBUG_RETURN(TRUE);
+      buf->q_append(ER_SPIDER_UNKNOWN_STR, ER_SPIDER_UNKNOWN_LEN);
+      break;
+  }
+  DBUG_RETURN(FALSE);
+}
+
+int ha_spider::create(
+  const char *name,
+  TABLE *form,
+  HA_CREATE_INFO *info
+) {
+  int error_num, dummy;
+  SPIDER_SHARE tmp_share;
+  THD *thd = ha_thd();
+  uint sql_command = thd_sql_command(thd), roop_count;
+  SPIDER_TRX *trx;
+  TABLE *table_tables = NULL;
+  SPIDER_Open_tables_backup open_tables_backup;
+  bool need_lock = FALSE;
+  DBUG_ENTER("ha_spider::create");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider name=%s", name));
+  DBUG_PRINT("info",
+    ("spider form->s->connect_string=%s", form->s->connect_string.str));
+  DBUG_PRINT("info",
+    ("spider info->connect_string=%s", info->connect_string.str));
+  if (
+    sql_command == SQLCOM_CREATE_INDEX ||
+    sql_command == SQLCOM_DROP_INDEX
+  )
+    DBUG_RETURN(0);
+  if (!(trx = spider_get_trx(thd, TRUE, &error_num)))
+    goto error_get_trx;
+  if (
+    trx->locked_connections &&
+    sql_command == SQLCOM_ALTER_TABLE
+  ) {
+    my_message(ER_SPIDER_ALTER_BEFORE_UNLOCK_NUM,
+      ER_SPIDER_ALTER_BEFORE_UNLOCK_STR, MYF(0));
+    error_num = ER_SPIDER_ALTER_BEFORE_UNLOCK_NUM;
+    goto error_alter_before_unlock;
+  }
+  memset((void*)&tmp_share, 0, sizeof(SPIDER_SHARE));
+  tmp_share.table_name = (char*) name;
+  tmp_share.table_name_length = strlen(name);
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  tmp_share.table_name_hash_value = my_calc_hash(&trx->trx_alter_table_hash,
+    (uchar*) tmp_share.table_name, tmp_share.table_name_length);
+  tmp_share.lgtm_tblhnd_share = spider_get_lgtm_tblhnd_share(
+    name, tmp_share.table_name_length, tmp_share.table_name_hash_value,
+    FALSE, TRUE, &error_num);
+#else
+  tmp_share.lgtm_tblhnd_share = spider_get_lgtm_tblhnd_share(
+    name, tmp_share.table_name_length, FALSE, TRUE, &error_num);
+#endif
+  if (!tmp_share.lgtm_tblhnd_share)
+  {
+    goto error;
+  }
+  if (form->s->keys > 0)
+  {
+    if (!(tmp_share.static_key_cardinality = (longlong *)
+      spider_bulk_malloc(spider_current_trx, 246, MYF(MY_WME),
+        &tmp_share.static_key_cardinality,
+          (uint) (sizeof(*tmp_share.static_key_cardinality) * form->s->keys),
+        NullS))
+    ) {
+      error_num = HA_ERR_OUT_OF_MEM;
+      goto error;
+    }
+    if (!(tmp_share.key_hint = new spider_string[form->s->keys]))
+    {
+      error_num = HA_ERR_OUT_OF_MEM;
+      goto error;
+    }
+  }
+  for (roop_count = 0; roop_count < form->s->keys; roop_count++)
+    tmp_share.key_hint[roop_count].init_calc_mem(85);
+  DBUG_PRINT("info",("spider tmp_share.key_hint=%p", tmp_share.key_hint));
+  if ((error_num = spider_parse_connect_info(&tmp_share, form->s,
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+    form->part_info,
+#endif
+    1)))
+    goto error;
+  DBUG_PRINT("info",("spider tmp_table=%d", form->s->tmp_table));
+  if (
+    (sql_command == SQLCOM_CREATE_TABLE &&
+      !(info->options & HA_LEX_CREATE_TMP_TABLE))
+  ) {
+    if (
+      !(table_tables = spider_open_sys_table(
+        current_thd, SPIDER_SYS_TABLES_TABLE_NAME_STR,
+        SPIDER_SYS_TABLES_TABLE_NAME_LEN, TRUE, &open_tables_backup, FALSE,
+        &error_num))
+    ) {
+      goto error;
+    }
+#ifdef SPIDER_SUPPORT_CREATE_OR_REPLACE_TABLE
+    if (
+      thd->lex->create_info.or_replace() &&
+      (error_num = spider_delete_tables(
+        table_tables, tmp_share.table_name, &dummy))
+    ) {
+      goto error;
+    }
+#endif
+    if (
+      (error_num = spider_insert_tables(table_tables, &tmp_share))
+    ) {
+      goto error;
+    }
+    spider_close_sys_table(current_thd, table_tables,
+      &open_tables_backup, FALSE);
+    table_tables = NULL;
+  } else if (
+    sql_command == SQLCOM_ALTER_TABLE
+  ) {
+    SPIDER_ALTER_TABLE *alter_table;
+    if (trx->query_id != thd->query_id)
+    {
+      spider_free_trx_alter_table(trx);
+      trx->query_id = thd->query_id;
+    }
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+    if (!(alter_table =
+      (SPIDER_ALTER_TABLE*) my_hash_search_using_hash_value(
+      &trx->trx_alter_table_hash, tmp_share.table_name_hash_value,
+      (uchar*) tmp_share.table_name, tmp_share.table_name_length)))
+#else
+    if (!(alter_table =
+      (SPIDER_ALTER_TABLE*) my_hash_search(&trx->trx_alter_table_hash,
+      (uchar*) tmp_share.table_name, tmp_share.table_name_length)))
+#endif
+    {
+      if ((error_num = spider_create_trx_alter_table(trx, &tmp_share, TRUE)))
+        goto error;
+    }
+    trx->tmp_flg = TRUE;
+
+    DBUG_PRINT("info",
+      ("spider alter_info.flags: %llu  alter_info.partition_flags: %lu",
+        thd->lex->alter_info.flags, thd->lex->alter_info.partition_flags));
+    if ((thd->lex->alter_info.partition_flags &
+        (
+          SPIDER_ALTER_PARTITION_ADD | SPIDER_ALTER_PARTITION_DROP |
+          SPIDER_ALTER_PARTITION_COALESCE | SPIDER_ALTER_PARTITION_REORGANIZE |
+          SPIDER_ALTER_PARTITION_TABLE_REORG | SPIDER_ALTER_PARTITION_REBUILD
+        )
+      ) &&
+      memcmp(name + strlen(name) - 5, "#TMP#", 5)
+    ) {
+      need_lock = TRUE;
+      if (
+        !(table_tables = spider_open_sys_table(
+          current_thd, SPIDER_SYS_TABLES_TABLE_NAME_STR,
+          SPIDER_SYS_TABLES_TABLE_NAME_LEN, TRUE, &open_tables_backup, TRUE,
+          &error_num))
+      ) {
+        goto error;
+      }
+      if (
+        (error_num = spider_insert_tables(table_tables, &tmp_share))
+      ) {
+        goto error;
+      }
+      spider_close_sys_table(current_thd, table_tables,
+        &open_tables_backup, TRUE);
+      table_tables = NULL;
+    }
+  }
+
+  if (
+    (
+      (info->used_fields & HA_CREATE_USED_AUTO) ||
+      sql_command == SQLCOM_ALTER_TABLE ||
+      sql_command == SQLCOM_CREATE_INDEX ||
+      sql_command == SQLCOM_RENAME_TABLE
+    ) &&
+    info->auto_increment_value > 0
+  ) {
+    pthread_mutex_lock(&tmp_share.lgtm_tblhnd_share->auto_increment_mutex);
+    tmp_share.lgtm_tblhnd_share->auto_increment_value =
+      info->auto_increment_value;
+    DBUG_PRINT("info",("spider auto_increment_value=%llu",
+      tmp_share.lgtm_tblhnd_share->auto_increment_value));
+    pthread_mutex_unlock(&tmp_share.lgtm_tblhnd_share->auto_increment_mutex);
+  }
+
+  if (tmp_share.static_key_cardinality)
+    spider_free(spider_current_trx, tmp_share.static_key_cardinality, MYF(0));
+  spider_free_share_alloc(&tmp_share);
+  DBUG_RETURN(0);
+
+error:
+  if (table_tables)
+    spider_close_sys_table(current_thd, table_tables,
+      &open_tables_backup, need_lock);
+  if (tmp_share.lgtm_tblhnd_share)
+    spider_free_lgtm_tblhnd_share_alloc(tmp_share.lgtm_tblhnd_share, FALSE);
+  if (tmp_share.static_key_cardinality)
+    spider_free(spider_current_trx, tmp_share.static_key_cardinality, MYF(0));
+  spider_free_share_alloc(&tmp_share);
+error_alter_before_unlock:
+error_get_trx:
+  DBUG_RETURN(error_num);
+}
+
+void ha_spider::update_create_info(
+  HA_CREATE_INFO* create_info
+) {
+  DBUG_ENTER("ha_spider::update_create_info");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (wide_handler && wide_handler->sql_command == SQLCOM_ALTER_TABLE)
+  {
+    SPIDER_TRX *trx = wide_handler->trx;
+    THD *thd = trx->thd;
+    if (trx->query_id != thd->query_id)
+    {
+      spider_free_trx_alter_table(trx);
+      trx->query_id = thd->query_id;
+      trx->tmp_flg = FALSE;
+    }
+    if (!(SPIDER_ALTER_TABLE*) my_hash_search(&trx->trx_alter_table_hash,
+      (uchar*) share->table_name, share->table_name_length))
+    {
+      if (spider_create_trx_alter_table(trx, share, FALSE))
+      {
+        store_error_num = HA_ERR_OUT_OF_MEM;
+        DBUG_VOID_RETURN;
+      }
+    }
+  }
+
+  if (!create_info->connect_string.str)
+  {
+    create_info->connect_string.str = table->s->connect_string.str;
+    create_info->connect_string.length = table->s->connect_string.length;
+  }
+  DBUG_PRINT("info",
+    ("spider create_info->connect_string=%s",
+    create_info->connect_string.str));
+  if (
+    !(create_info->used_fields & HA_CREATE_USED_AUTO)
+  ) {
+    info(HA_STATUS_AUTO);
+    create_info->auto_increment_value = stats.auto_increment_value;
+  }
+  DBUG_VOID_RETURN;
+}
+
+int ha_spider::rename_table(
+  const char *from,
+  const char *to
+) {
+  int error_num, roop_count, old_link_count, from_len = strlen(from),
+    to_len = strlen(to), tmp_error_num;
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  my_hash_value_type from_hash_value = my_calc_hash(&spider_open_tables,
+    (uchar*) from, from_len);
+  my_hash_value_type to_hash_value = my_calc_hash(&spider_open_tables,
+    (uchar*) to, to_len);
+#endif
+  THD *thd = ha_thd();
+  uint sql_command = thd_sql_command(thd);
+  SPIDER_TRX *trx;
+  TABLE *table_tables = NULL;
+  SPIDER_ALTER_TABLE *alter_table_from, *alter_table_to;
+  SPIDER_LGTM_TBLHND_SHARE *from_lgtm_tblhnd_share, *to_lgtm_tblhnd_share;
+  SPIDER_Open_tables_backup open_tables_backup;
+  bool need_lock = FALSE;
+  DBUG_ENTER("ha_spider::rename_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider from=%s", from));
+  DBUG_PRINT("info",("spider to=%s", to));
+  if (
+    sql_command == SQLCOM_CREATE_INDEX ||
+    sql_command == SQLCOM_DROP_INDEX
+  )
+    DBUG_RETURN(0);
+  if (!(trx = spider_get_trx(thd, TRUE, &error_num)))
+    goto error;
+  if (
+    trx->locked_connections &&
+    /* SQLCOM_RENAME_TABLE doesn't come here */
+    sql_command == SQLCOM_ALTER_TABLE
+  ) {
+    my_message(ER_SPIDER_ALTER_BEFORE_UNLOCK_NUM,
+      ER_SPIDER_ALTER_BEFORE_UNLOCK_STR, MYF(0));
+    error_num = ER_SPIDER_ALTER_BEFORE_UNLOCK_NUM;
+    goto error;
+  }
+  if (
+    sql_command == SQLCOM_RENAME_TABLE ||
+    (sql_command == SQLCOM_ALTER_TABLE && !trx->tmp_flg) ||
+    !(alter_table_from =
+      (SPIDER_ALTER_TABLE*) my_hash_search(&trx->trx_alter_table_hash,
+      (uchar*) from, from_len))
+  ) {
+    if (
+      !(table_tables = spider_open_sys_table(
+        current_thd, SPIDER_SYS_TABLES_TABLE_NAME_STR,
+        SPIDER_SYS_TABLES_TABLE_NAME_LEN, TRUE, &open_tables_backup, FALSE,
+        &error_num))
+    ) {
+      goto error;
+    }
+    if (
+      (error_num = spider_update_tables_name(
+        table_tables, from, to, &old_link_count))
+    ) {
+      goto error;
+    }
+    spider_close_sys_table(current_thd, table_tables,
+      &open_tables_backup, FALSE);
+    table_tables = NULL;
+
+    /* release table mon list */
+    for (roop_count = 0; roop_count < old_link_count; roop_count++)
+    {
+      if ((error_num =
+        spider_release_ping_table_mon_list(from, from_len, roop_count)))
+      {
+        goto error;
+      }
+    }
+  } else if (sql_command == SQLCOM_ALTER_TABLE)
+  {
+    DBUG_PRINT("info",("spider alter_table_from=%p", alter_table_from));
+    if ((alter_table_to =
+      (SPIDER_ALTER_TABLE*) my_hash_search(&trx->trx_alter_table_hash,
+      (uchar*) to, to_len))
+    ) {
+      DBUG_PRINT("info",("spider copy link_statuses"));
+      uint all_link_count = alter_table_from->all_link_count;
+      if (all_link_count > alter_table_to->all_link_count)
+        all_link_count = alter_table_to->all_link_count;
+      for (roop_count = 0; roop_count < (int) all_link_count; roop_count++)
+      {
+        if (alter_table_from->tmp_link_statuses[roop_count] <=
+          SPIDER_LINK_STATUS_NO_CHANGE)
+        {
+          DBUG_PRINT("info",("spider copy %d", roop_count));
+          alter_table_from->tmp_link_statuses[roop_count] =
+            alter_table_to->tmp_link_statuses[roop_count];
+        }
+        DBUG_PRINT("info",("spider link_status_from[%d]=%ld", roop_count,
+          alter_table_from->tmp_link_statuses[roop_count]));
+        DBUG_PRINT("info",("spider link_status_to[%d]=%ld", roop_count,
+          alter_table_to->tmp_link_statuses[roop_count]));
+      }
+    }
+
+    DBUG_PRINT("info",
+      ("spider alter_info.flags: %llu  alter_info.partition_flags: %lu",
+        thd->lex->alter_info.flags, thd->lex->alter_info.partition_flags));
+    if (
+      (thd->lex->alter_info.partition_flags &
+        (
+          SPIDER_ALTER_PARTITION_ADD | SPIDER_ALTER_PARTITION_DROP |
+          SPIDER_ALTER_PARTITION_COALESCE | SPIDER_ALTER_PARTITION_REORGANIZE |
+          SPIDER_ALTER_PARTITION_TABLE_REORG | SPIDER_ALTER_PARTITION_REBUILD
+        )
+      )
+    )
+      need_lock = TRUE;
+
+    if (
+      !(table_tables = spider_open_sys_table(
+        current_thd, SPIDER_SYS_TABLES_TABLE_NAME_STR,
+        SPIDER_SYS_TABLES_TABLE_NAME_LEN, TRUE, &open_tables_backup, need_lock,
+        &error_num))
+    ) {
+      goto error;
+    }
+
+    if (alter_table_from->now_create)
+    {
+      SPIDER_SHARE tmp_share;
+      tmp_share.table_name = (char*) to;
+      tmp_share.table_name_length = to_len;
+      tmp_share.priority = alter_table_from->tmp_priority;
+      tmp_share.link_count = alter_table_from->link_count;
+      tmp_share.all_link_count = alter_table_from->all_link_count;
+      memcpy(&tmp_share.alter_table, alter_table_from,
+        sizeof(*alter_table_from));
+      if (
+        (error_num = spider_insert_tables(table_tables, &tmp_share))
+      ) {
+        goto error;
+      }
+    } else {
+      if (
+        (error_num = spider_update_tables_priority(
+          table_tables, alter_table_from, to, &old_link_count))
+      ) {
+        goto error;
+      }
+    }
+    spider_close_sys_table(current_thd, table_tables,
+      &open_tables_backup, need_lock);
+    table_tables = NULL;
+
+    if (!alter_table_from->now_create)
+    {
+      /* release table mon list */
+      for (roop_count = 0; roop_count < (int) alter_table_from->all_link_count;
+        roop_count++)
+      {
+        if ((error_num =
+          spider_release_ping_table_mon_list(from, from_len, roop_count)))
+        {
+          goto error;
+        }
+      }
+      for (roop_count = 0; roop_count < old_link_count; roop_count++)
+      {
+        if ((error_num =
+          spider_release_ping_table_mon_list(to, to_len, roop_count)))
+        {
+          goto error;
+        }
+      }
+    }
+/*
+    spider_free_trx_alter_table_alloc(trx, alter_table_from);
+*/
+  }
+
+  pthread_mutex_lock(&spider_lgtm_tblhnd_share_mutex);
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  from_lgtm_tblhnd_share = spider_get_lgtm_tblhnd_share(
+    from, from_len, from_hash_value, TRUE, FALSE, &error_num);
+#else
+  from_lgtm_tblhnd_share = spider_get_lgtm_tblhnd_share(
+    from, from_len, TRUE, FALSE, &error_num);
+#endif
+  if (from_lgtm_tblhnd_share)
+  {
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+    to_lgtm_tblhnd_share = spider_get_lgtm_tblhnd_share(
+      to, to_len, to_hash_value, TRUE, TRUE, &error_num);
+#else
+    to_lgtm_tblhnd_share = spider_get_lgtm_tblhnd_share(
+      to, to_len, TRUE, TRUE, &error_num);
+#endif
+    if (!to_lgtm_tblhnd_share)
+    {
+      pthread_mutex_unlock(&spider_lgtm_tblhnd_share_mutex);
+      goto error;
+    }
+    DBUG_PRINT("info",
+      ("spider auto_increment_init=%s",
+        from_lgtm_tblhnd_share->auto_increment_init ? "TRUE" : "FALSE"));
+    to_lgtm_tblhnd_share->auto_increment_init =
+      from_lgtm_tblhnd_share->auto_increment_init;
+    to_lgtm_tblhnd_share->auto_increment_lclval =
+      from_lgtm_tblhnd_share->auto_increment_lclval;
+    to_lgtm_tblhnd_share->auto_increment_value =
+      from_lgtm_tblhnd_share->auto_increment_value;
+    spider_free_lgtm_tblhnd_share_alloc(from_lgtm_tblhnd_share, TRUE);
+  }
+  pthread_mutex_unlock(&spider_lgtm_tblhnd_share_mutex);
+  spider_delete_init_error_table(from);
+  DBUG_RETURN(0);
+
+error:
+  if (table_tables)
+    spider_close_sys_table(current_thd, table_tables,
+      &open_tables_backup, need_lock);
+  pthread_mutex_lock(&spider_lgtm_tblhnd_share_mutex);
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  to_lgtm_tblhnd_share = spider_get_lgtm_tblhnd_share(
+    to, to_len, to_hash_value, TRUE, FALSE, &tmp_error_num);
+#else
+  to_lgtm_tblhnd_share = spider_get_lgtm_tblhnd_share(
+    to, to_len, TRUE, FALSE, &tmp_error_num);
+#endif
+  if (to_lgtm_tblhnd_share)
+    spider_free_lgtm_tblhnd_share_alloc(to_lgtm_tblhnd_share, TRUE);
+  pthread_mutex_unlock(&spider_lgtm_tblhnd_share_mutex);
+  DBUG_RETURN(error_num);
+}
+
+int ha_spider::delete_table(
+  const char *name
+) {
+  int error_num;
+  THD *thd = ha_thd();
+  SPIDER_TRX *trx;
+  TABLE *table_tables = NULL;
+  uint sql_command = thd_sql_command(thd);
+  SPIDER_ALTER_TABLE *alter_table;
+  SPIDER_Open_tables_backup open_tables_backup;
+  bool need_lock = FALSE;
+  DBUG_ENTER("ha_spider::delete_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider name=%s", name));
+  if (
+    sql_command == SQLCOM_CREATE_INDEX ||
+    sql_command == SQLCOM_DROP_INDEX
+  )
+    DBUG_RETURN(0);
+  if (!(trx = spider_get_trx(thd, TRUE, &error_num)))
+    goto error;
+  if (
+    trx->locked_connections &&
+    /* SQLCOM_DROP_DB doesn't come here */
+    (
+      sql_command == SQLCOM_DROP_TABLE ||
+      sql_command == SQLCOM_ALTER_TABLE
+    )
+  ) {
+    my_message(ER_SPIDER_ALTER_BEFORE_UNLOCK_NUM,
+      ER_SPIDER_ALTER_BEFORE_UNLOCK_STR, MYF(0));
+    error_num = ER_SPIDER_ALTER_BEFORE_UNLOCK_NUM;
+    goto error;
+  }
+  if (sql_command == SQLCOM_DROP_TABLE ||
+    sql_command == SQLCOM_DROP_DB ||
+    sql_command == SQLCOM_ALTER_TABLE ||
+    sql_command == SQLCOM_CREATE_TABLE)
+  {
+    SPIDER_LGTM_TBLHND_SHARE *lgtm_tblhnd_share;
+    int roop_count, old_link_count = 0, name_len = strlen(name);
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+    my_hash_value_type hash_value = my_calc_hash(&spider_open_tables,
+      (uchar*) name, name_len);
+#endif
+    if (
+      sql_command == SQLCOM_ALTER_TABLE &&
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+      (alter_table =
+        (SPIDER_ALTER_TABLE*) my_hash_search_using_hash_value(
+        &trx->trx_alter_table_hash,
+        hash_value, (uchar*) name, name_len)) &&
+#else
+      (alter_table =
+        (SPIDER_ALTER_TABLE*) my_hash_search(&trx->trx_alter_table_hash,
+        (uchar*) name, name_len)) &&
+#endif
+      alter_table->now_create
+    )
+      DBUG_RETURN(0);
+
+    DBUG_PRINT("info",
+      ("spider alter_info.flags: %llu  alter_info.partition_flags: %lu",
+        thd->lex->alter_info.flags, thd->lex->alter_info.partition_flags));
+    if (
+      sql_command == SQLCOM_ALTER_TABLE &&
+      (thd->lex->alter_info.partition_flags &
+        (
+          SPIDER_ALTER_PARTITION_ADD | SPIDER_ALTER_PARTITION_DROP |
+          SPIDER_ALTER_PARTITION_COALESCE | SPIDER_ALTER_PARTITION_REORGANIZE |
+          SPIDER_ALTER_PARTITION_TABLE_REORG | SPIDER_ALTER_PARTITION_REBUILD
+        )
+      )
+    )
+      need_lock = TRUE;
+
+    if ((error_num = spider_sys_delete_table_sts(
+      current_thd, name, name_len, need_lock)))
+      goto error;
+    if ((error_num = spider_sys_delete_table_crd(
+      current_thd, name, name_len, need_lock)))
+      goto error;
+    if (
+      !(table_tables = spider_open_sys_table(
+        current_thd, SPIDER_SYS_TABLES_TABLE_NAME_STR,
+        SPIDER_SYS_TABLES_TABLE_NAME_LEN, TRUE, &open_tables_backup, need_lock,
+        &error_num))
+    ) {
+      goto error;
+    }
+    if (
+      (error_num = spider_delete_tables(
+        table_tables, name, &old_link_count))
+    ) {
+      goto error;
+    }
+    spider_close_sys_table(current_thd, table_tables,
+      &open_tables_backup, need_lock);
+    table_tables = NULL;
+
+    /* release table mon list */
+    for (roop_count = 0; roop_count < old_link_count; roop_count++)
+    {
+      if ((error_num =
+        spider_release_ping_table_mon_list(name, name_len, roop_count)))
+        goto error;
+    }
+
+    pthread_mutex_lock(&spider_lgtm_tblhnd_share_mutex);
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+    lgtm_tblhnd_share = spider_get_lgtm_tblhnd_share(
+      name, name_len, hash_value, TRUE, FALSE, &error_num);
+#else
+    lgtm_tblhnd_share = spider_get_lgtm_tblhnd_share(
+      name, name_len, TRUE, FALSE, &error_num);
+#endif
+    if (lgtm_tblhnd_share)
+      spider_free_lgtm_tblhnd_share_alloc(lgtm_tblhnd_share, TRUE);
+    pthread_mutex_unlock(&spider_lgtm_tblhnd_share_mutex);
+  }
+
+  spider_delete_init_error_table(name);
+  DBUG_RETURN(0);
+
+error:
+  if (table_tables)
+    spider_close_sys_table(current_thd, table_tables,
+      &open_tables_backup, need_lock);
+  DBUG_RETURN(error_num);
+}
+
+bool ha_spider::is_crashed() const
+{
+  DBUG_ENTER("ha_spider::is_crashed");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(FALSE);
+}
+
+#ifdef SPIDER_HANDLER_AUTO_REPAIR_HAS_ERROR
+bool ha_spider::auto_repair(int error) const
+#else
+bool ha_spider::auto_repair() const
+#endif
+{
+  DBUG_ENTER("ha_spider::auto_repair");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(FALSE);
+}
+
+int ha_spider::disable_indexes(
+  uint mode
+) {
+  int error_num;
+  backup_error_status();
+  DBUG_ENTER("ha_spider::disable_indexes");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if ((error_num = spider_db_disable_keys(this)))
+    DBUG_RETURN(check_error_mode(error_num));
+  DBUG_RETURN(0);
+}
+
+int ha_spider::enable_indexes(
+  uint mode
+) {
+  int error_num;
+  backup_error_status();
+  DBUG_ENTER("ha_spider::enable_indexes");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if ((error_num = spider_db_enable_keys(this)))
+    DBUG_RETURN(check_error_mode(error_num));
+  DBUG_RETURN(0);
+}
+
+
+int ha_spider::check(
+  THD* thd,
+  HA_CHECK_OPT* check_opt
+) {
+  int error_num;
+  backup_error_status();
+  DBUG_ENTER("ha_spider::check");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if ((error_num = spider_db_check_table(this, check_opt)))
+    DBUG_RETURN(check_error_mode(error_num));
+  DBUG_RETURN(0);
+}
+
+int ha_spider::repair(
+  THD* thd,
+  HA_CHECK_OPT* check_opt
+) {
+  int error_num;
+  backup_error_status();
+  DBUG_ENTER("ha_spider::repair");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if ((error_num = spider_db_repair_table(this, check_opt)))
+    DBUG_RETURN(check_error_mode(error_num));
+  DBUG_RETURN(0);
+}
+
+bool ha_spider::check_and_repair(
+  THD *thd
+) {
+  HA_CHECK_OPT check_opt;
+  DBUG_ENTER("ha_spider::check_and_repair");
+  DBUG_PRINT("info",("spider this=%p", this));
+  check_opt.init();
+  check_opt.flags = T_MEDIUM;
+  if (spider_db_check_table(this, &check_opt))
+  {
+    check_opt.flags = T_QUICK;
+    if (spider_db_repair_table(this, &check_opt))
+      DBUG_RETURN(TRUE);
+  }
+  DBUG_RETURN(FALSE);
+}
+
+int ha_spider::analyze(
+  THD* thd,
+  HA_CHECK_OPT* check_opt
+) {
+  int error_num;
+  backup_error_status();
+  DBUG_ENTER("ha_spider::analyze");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if ((error_num = spider_db_analyze_table(this)))
+    DBUG_RETURN(check_error_mode(error_num));
+  DBUG_RETURN(0);
+}
+
+int ha_spider::optimize(
+  THD* thd,
+  HA_CHECK_OPT* check_opt
+) {
+  int error_num;
+  backup_error_status();
+  DBUG_ENTER("ha_spider::optimize");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if ((error_num = spider_db_optimize_table(this)))
+    DBUG_RETURN(check_error_mode(error_num));
+  DBUG_RETURN(0);
+}
+
+bool ha_spider::is_fatal_error(
+  int error_num,
+  uint flags
+) {
+  DBUG_ENTER("ha_spider::is_fatal_error");
+  DBUG_PRINT("info",("spider error_num=%d", error_num));
+  DBUG_PRINT("info",("spider flags=%u", flags));
+  if (
+    !handler::is_fatal_error(error_num, flags)
+  ) {
+    DBUG_PRINT("info",("spider FALSE"));
+    DBUG_RETURN(FALSE);
+  }
+  DBUG_PRINT("info",("spider TRUE"));
+  DBUG_RETURN(TRUE);
+}
+
+Field *ha_spider::field_exchange(
+  Field *field
+) {
+  DBUG_ENTER("ha_spider::field_exchange");
+#ifdef HA_CAN_BULK_ACCESS
+  if (is_bulk_access_clone)
+  {
+    DBUG_RETURN(pt_clone_source_handler->field_exchange(field));
+  }
+#endif
+  DBUG_PRINT("info",("spider in field=%p", field));
+  DBUG_PRINT("info",("spider in field->table=%p", field->table));
+  DBUG_PRINT("info",("spider table=%p", table));
+  if (field->table != table)
+    DBUG_RETURN(NULL);
+  DBUG_PRINT("info",("spider out field=%p", field));
+  DBUG_RETURN(field);
+}
+
+const COND *ha_spider::cond_push(
+  const COND *cond
+) {
+  DBUG_ENTER("ha_spider::cond_push");
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  if (
+    wide_handler->stage == SPD_HND_STAGE_COND_PUSH &&
+    wide_handler->stage_executor != this)
+  {
+    DBUG_RETURN(NULL);
+  }
+  wide_handler->stage = SPD_HND_STAGE_COND_PUSH;
+  wide_handler->stage_executor = this;
+#endif
+  wide_handler->cond_check = FALSE;
+  if (cond)
+  {
+    SPIDER_CONDITION *tmp_cond;
+    if (!(tmp_cond = (SPIDER_CONDITION *)
+      spider_malloc(spider_current_trx, 3, sizeof(*tmp_cond), MYF(MY_WME)))
+    )
+      DBUG_RETURN(cond);
+    tmp_cond->cond = (COND *) cond;
+    tmp_cond->next = wide_handler->condition;
+    wide_handler->condition = tmp_cond;
+  }
+  DBUG_RETURN(NULL);
+}
+
+void ha_spider::cond_pop()
+{
+  DBUG_ENTER("ha_spider::cond_pop");
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  if (
+    wide_handler->stage == SPD_HND_STAGE_COND_POP &&
+    wide_handler->stage_executor != this)
+  {
+    DBUG_VOID_RETURN;
+  }
+  wide_handler->stage = SPD_HND_STAGE_COND_POP;
+  wide_handler->stage_executor = this;
+#endif
+  if (wide_handler->condition)
+  {
+    SPIDER_CONDITION *tmp_cond = wide_handler->condition->next;
+    spider_free(spider_current_trx, wide_handler->condition, MYF(0));
+    wide_handler->condition = tmp_cond;
+  }
+  DBUG_VOID_RETURN;
+}
+
+int ha_spider::info_push(
+  uint info_type,
+  void *info
+) {
+  int error_num = 0;
+  DBUG_ENTER("ha_spider::info_push");
+  DBUG_PRINT("info",("spider this=%p", this));
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  if (
+    wide_handler->stage == SPD_HND_STAGE_INFO_PUSH &&
+    wide_handler->stage_executor != this)
+  {
+    DBUG_RETURN(0);
+  }
+  wide_handler->stage = SPD_HND_STAGE_INFO_PUSH;
+  wide_handler->stage_executor = this;
+#endif
+#ifdef HA_CAN_BULK_ACCESS
+  if (
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    info_type != INFO_KIND_HS_RET_FIELDS &&
+#endif
+#endif
+    info_type != INFO_KIND_BULK_ACCESS_BEGIN &&
+    info_type != INFO_KIND_BULK_ACCESS_CURRENT &&
+    info_type != INFO_KIND_BULK_ACCESS_END
+  ) {
+    if (!is_bulk_access_clone)
+    {
+      if (
+        bulk_access_executing &&
+        bulk_access_link_exec_tgt->called
+      ) {
+        DBUG_RETURN(bulk_access_link_exec_tgt->spider->info_push(info_type,
+          info));
+      } else if (bulk_access_started)
+      {
+        DBUG_RETURN(bulk_access_link_current->spider->info_push(info_type,
+          info));
+      }
+    }
+  }
+#endif
+
+#if defined(HANDLER_HAS_DIRECT_UPDATE_ROWS) || defined(HA_CAN_BULK_ACCESS)
+  switch (info_type)
+  {
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    case INFO_KIND_HS_RET_FIELDS:
+    {
+      DBUG_PRINT("info",("spider INFO_KIND_HS_RET_FIELDS"));
+      size_t roop_count;
+      Field *field;
+      SPIDER_HS_UINT32_INFO *tmp_info = (SPIDER_HS_UINT32_INFO *) info;
+      wide_handler->hs_pushed_ret_fields_num = tmp_info->info_size;
+      if (wide_handler->hs_pushed_ret_fields_size <
+        wide_handler->hs_pushed_ret_fields_num)
+      {
+        if (wide_handler->hs_pushed_ret_fields)
+          spider_free(spider_current_trx, wide_handler->hs_pushed_ret_fields,
+            MYF(0));
+        if (!(wide_handler->hs_pushed_ret_fields = (uint32 *)
+          spider_bulk_malloc(spider_current_trx, 17, MYF(MY_WME),
+          &wide_handler->hs_pushed_ret_fields,
+            sizeof(uint32) * wide_handler->hs_pushed_ret_fields_num,
+          NullS))
+        ) {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        wide_handler->hs_pushed_ret_fields_size =
+          wide_handler->hs_pushed_ret_fields_num;
+      }
+      memcpy(wide_handler->hs_pushed_ret_fields, tmp_info->info,
+        sizeof(uint32) * wide_handler->hs_pushed_ret_fields_num);
+      bitmap_clear_all(table->read_set);
+      bitmap_clear_all(table->write_set);
+      wide_handler->hs_pushed_lcl_fields_num = 0;
+      for (roop_count = 0; roop_count < wide_handler->hs_pushed_ret_fields_num;
+        roop_count++)
+      {
+        field = get_top_table_field(
+          wide_handler->hs_pushed_ret_fields[roop_count]);
+        if ((field = field_exchange(field)))
+        {
+          if (!bitmap_is_set(table->read_set, field->field_index))
+          {
+            ++wide_handler->hs_pushed_lcl_fields_num;
+            bitmap_set_bit(table->read_set, field->field_index);
+            bitmap_set_bit(table->write_set, field->field_index);
+          }
+        }
+      }
+    }
+    break;
+    case INFO_KIND_HS_APPEND_STRING_REF:
+    {
+      DBUG_PRINT("info",("spider INFO_KIND_HS_APPEND_STRING_REF"));
+#ifndef DBUG_OFF
+      SPIDER_HS_STRING_REF *tmp_ref = (SPIDER_HS_STRING_REF*) info;
+      char print_buf[MAX_FIELD_WIDTH];
+      if (tmp_ref->size() < MAX_FIELD_WIDTH)
+      {
+        memcpy(print_buf, tmp_ref->begin(), tmp_ref->size());
+        print_buf[tmp_ref->size()] = '\0';
+        DBUG_PRINT("info",("spider info=%s", print_buf));
+      }
+#endif
+      Field *field;
+      if (wide_handler->hs_pushed_ret_fields)
+      {
+        field = get_top_table_field(
+          wide_handler->hs_pushed_ret_fields[
+            wide_handler->hs_pushed_strref_num]);
+      } else {
+        field = get_top_table_field(
+          pt_clone_source_handler->wide_handler->hs_pushed_ret_fields[
+            wide_handler->hs_pushed_strref_num]);
+      }
+      if (!field_exchange(field))
+      {
+        wide_handler->hs_pushed_strref_num++;
+        break;
+      }
+      wide_handler->hs_pushed_strref_num++;
+      if (partition_handler_share && partition_handler_share->handlers)
+      {
+        size_t roop_count;
+        ha_spider **handlers = partition_handler_share->handlers;
+        for (roop_count = 0; roop_count < partition_handler_share->no_parts;
+          ++roop_count)
+        {
+          if ((error_num = handlers[roop_count]->push_back_hs_upds(
+            *((SPIDER_HS_STRING_REF*) info))))
+          {
+            DBUG_RETURN(error_num);
+          }
+        }
+      } else {
+        if ((error_num = push_back_hs_upds(*((SPIDER_HS_STRING_REF*) info))))
+        {
+          DBUG_RETURN(error_num);
+        }
+      }
+      break;
+    }
+    case INFO_KIND_HS_CLEAR_STRING_REF:
+      DBUG_PRINT("info",("spider INFO_KIND_HS_CLEAR_STRING_REF"));
+      wide_handler->hs_pushed_strref_num = 0;
+      if (partition_handler_share && partition_handler_share->handlers)
+      {
+        size_t roop_count;
+        ha_spider **handlers = partition_handler_share->handlers;
+        for (roop_count = 0; roop_count < partition_handler_share->no_parts;
+          ++roop_count)
+        {
+          if ((error_num = handlers[roop_count]->reset_hs_upds(
+            SPIDER_SQL_TYPE_UPDATE_HS)))
+          {
+            DBUG_RETURN(error_num);
+          }
+        }
+      } else {
+        if ((error_num = reset_hs_upds(SPIDER_SQL_TYPE_UPDATE_HS)))
+        {
+          DBUG_RETURN(error_num);
+        }
+      }
+      break;
+    case INFO_KIND_HS_INCREMENT_BEGIN:
+      DBUG_PRINT("info",("spider INFO_KIND_HS_INCREMENT_BEGIN"));
+      wide_handler->hs_increment = TRUE;
+      break;
+    case INFO_KIND_HS_INCREMENT_END:
+      DBUG_PRINT("info",("spider INFO_KIND_HS_INCREMENT_END"));
+      wide_handler->hs_increment = FALSE;
+      break;
+    case INFO_KIND_HS_DECREMENT_BEGIN:
+      DBUG_PRINT("info",("spider INFO_KIND_HS_DECREMENT_BEGIN"));
+      wide_handler->hs_decrement = TRUE;
+      break;
+    case INFO_KIND_HS_DECREMENT_END:
+      DBUG_PRINT("info",("spider INFO_KIND_HS_DECREMENT_END"));
+      wide_handler->hs_decrement = FALSE;
+      break;
+#endif
+#ifdef INFO_KIND_UPDATE_FIELDS
+    case INFO_KIND_UPDATE_FIELDS:
+      DBUG_PRINT("info",("spider INFO_KIND_UPDATE_FIELDS"));
+      wide_handler->direct_update_fields = (List<Item> *) info;
+      wide_handler->update_request = TRUE;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+      if (wide_handler->keyread && check_partitioned())
+        wide_handler->keyread = FALSE;
+#endif
+      break;
+#endif
+#ifdef INFO_KIND_UPDATE_VALUES
+    case INFO_KIND_UPDATE_VALUES:
+      DBUG_PRINT("info",("spider INFO_KIND_UPDATE_VALUES"));
+      wide_handler->direct_update_values = (List<Item> *) info;
+      break;
+#endif
+#ifdef INFO_KIND_FORCE_LIMIT_BEGIN
+    case INFO_KIND_FORCE_LIMIT_BEGIN:
+      DBUG_PRINT("info",("spider INFO_KIND_FORCE_LIMIT_BEGIN"));
+      wide_handler->info_limit = *((longlong *) info);
+      break;
+    case INFO_KIND_FORCE_LIMIT_END:
+      DBUG_PRINT("info",("spider INFO_KIND_FORCE_LIMIT_END"));
+      wide_handler->info_limit = 9223372036854775807LL;
+      break;
+#endif
+#endif
+#ifdef HA_CAN_BULK_ACCESS
+    case INFO_KIND_BULK_ACCESS_BEGIN:
+      DBUG_PRINT("info",("spider INFO_KIND_BULK_ACCESS_BEGIN"));
+      if (partition_handler_share && partition_handler_share->handlers)
+      {
+        size_t roop_count;
+        ha_spider **handlers = partition_handler_share->handlers;
+        for (roop_count = 0; roop_count < partition_handler_share->no_parts;
+          ++roop_count)
+        {
+          if ((error_num = handlers[roop_count]->bulk_access_begin(info)))
+          {
+            DBUG_RETURN(error_num);
+          }
+        }
+      } else {
+        if ((error_num = bulk_access_begin(info)))
+        {
+          DBUG_RETURN(error_num);
+        }
+      }
+      break;
+    case INFO_KIND_BULK_ACCESS_CURRENT:
+      DBUG_PRINT("info",("spider INFO_KIND_BULK_ACCESS_CURRENT"));
+      if (partition_handler_share && partition_handler_share->handlers)
+      {
+        size_t roop_count;
+        ha_spider **handlers = partition_handler_share->handlers;
+        for (roop_count = 0; roop_count < partition_handler_share->no_parts;
+          ++roop_count)
+        {
+          if ((error_num = handlers[roop_count]->bulk_access_current(info)))
+          {
+            DBUG_RETURN(error_num);
+          }
+        }
+      } else {
+        if ((error_num = bulk_access_current(info)))
+        {
+          DBUG_RETURN(error_num);
+        }
+      }
+      break;
+    case INFO_KIND_BULK_ACCESS_END:
+      DBUG_PRINT("info",("spider INFO_KIND_BULK_ACCESS_END"));
+      if (partition_handler_share && partition_handler_share->handlers)
+      {
+        size_t roop_count;
+        ha_spider **handlers = partition_handler_share->handlers;
+        for (roop_count = 0; roop_count < partition_handler_share->no_parts;
+          ++roop_count)
+        {
+          handlers[roop_count]->bulk_access_end();
+        }
+      } else {
+        bulk_access_end();
+      }
+      break;
+#endif
+    default:
+      break;
+  }
+#endif
+  DBUG_RETURN(error_num);
+}
+
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+void ha_spider::return_record_by_parent()
+{
+  DBUG_ENTER("ha_spider::return_record_by_parent");
+  DBUG_PRINT("info",("spider this=%p", this));
+  spider_db_refetch_for_item_sum_funcs(this);
+  DBUG_VOID_RETURN;
+}
+#endif
+
+TABLE *ha_spider::get_table()
+{
+  DBUG_ENTER("ha_spider::get_table");
+  DBUG_RETURN(table);
+}
+
+void ha_spider::set_ft_discard_bitmap()
+{
+  DBUG_ENTER("ha_spider::set_ft_discard_bitmap");
+  TABLE_LIST *table_list = spider_get_parent_table_list(this);
+  if (table_list)
+  {
+    st_select_lex *select_lex = table_list->select_lex;
+    if (select_lex && select_lex->ftfunc_list)
+    {
+      uint roop_count;
+      Field *field;
+      Item *item, *item_next;
+      Item_func_match *item_func_match;
+      Item_field *item_field;
+      {
+        List_iterator_fast<Item_func_match> fmi(*select_lex->ftfunc_list);
+        while ((item_func_match = fmi++))
+        {
+          DBUG_PRINT("info",("spider item_func_match=%p", item_func_match));
+          uint item_count = item_func_match->argument_count();
+          Item **item_list = item_func_match->arguments();
+          for (roop_count = 1; roop_count < item_count; roop_count++)
+          {
+            item_field = (Item_field *) item_list[roop_count];
+            DBUG_PRINT("info",("spider item_field=%p", item_field));
+            field = item_field->field;
+            DBUG_PRINT("info",("spider field=%p", field));
+            if (!field || !(field = field_exchange(field)))
+              continue;
+            DBUG_PRINT("info",("spider clear_bit=%u", field->field_index));
+            spider_clear_bit(wide_handler->ft_discard_bitmap,
+              field->field_index);
+          }
+        }
+      }
+      THD *thd = ha_thd();
+      Statement *stmt = thd->stmt_map.find(thd->id);
+      if (stmt && stmt->free_list)
+      {
+        DBUG_PRINT("info",("spider item from stmt"));
+        item_next = stmt->free_list;
+      } else {
+        DBUG_PRINT("info",("spider item from thd"));
+        item_next = thd->free_list;
+      }
+      while ((item = item_next))
+      {
+        DBUG_PRINT("info",("spider item=%p", item));
+        DBUG_PRINT("info",("spider itemtype=%u", item->type()));
+        item_next = item->next;
+        if (item->type() != Item::FIELD_ITEM)
+          continue;
+        field = ((Item_field *) item)->field;
+        DBUG_PRINT("info",("spider field=%p", field));
+        if (!field || !(field = field_exchange(field)))
+          continue;
+        DBUG_PRINT("info",("spider field_index=%u", field->field_index));
+        if (!spider_bit_is_set(wide_handler->ft_discard_bitmap,
+          field->field_index))
+        {
+          bool match_flag = FALSE;
+          List_iterator_fast<Item_func_match> fmi(*select_lex->ftfunc_list);
+          while ((item_func_match = fmi++))
+          {
+            DBUG_PRINT("info",("spider item_func_match=%p", item_func_match));
+            uint item_count = item_func_match->argument_count();
+            Item **item_list = item_func_match->arguments();
+            for (roop_count = 1; roop_count < item_count; roop_count++)
+            {
+              DBUG_PRINT("info",("spider item_list[%u]=%p", roop_count,
+                item_list[roop_count]));
+              if (item == item_list[roop_count])
+              {
+                DBUG_PRINT("info",("spider matched"));
+                match_flag = TRUE;
+                break;
+              }
+            }
+            if (match_flag)
+              break;
+          }
+          if (!match_flag)
+          {
+            DBUG_PRINT("info",("spider set_bit=%u", field->field_index));
+            spider_set_bit(wide_handler->ft_discard_bitmap,
+              field->field_index);
+          }
+        }
+      }
+    }
+  }
+  DBUG_VOID_RETURN;
+}
+
+void ha_spider::set_searched_bitmap()
+{
+  int roop_count;
+  DBUG_ENTER("ha_spider::set_searched_bitmap");
+  for (roop_count = 0; roop_count < (int) ((table_share->fields + 7) / 8);
+    roop_count++)
+  {
+    wide_handler->searched_bitmap[roop_count] =
+      ((uchar *) table->read_set->bitmap)[roop_count] |
+      ((uchar *) table->write_set->bitmap)[roop_count];
+    DBUG_PRINT("info",("spider roop_count=%d", roop_count));
+    DBUG_PRINT("info",("spider searched_bitmap=%d",
+      wide_handler->searched_bitmap[roop_count]));
+    DBUG_PRINT("info",("spider read_set=%d",
+      ((uchar *) table->read_set->bitmap)[roop_count]));
+    DBUG_PRINT("info",("spider write_set=%d",
+      ((uchar *) table->write_set->bitmap)[roop_count]));
+  }
+  if (wide_handler->sql_command == SQLCOM_UPDATE ||
+    wide_handler->sql_command == SQLCOM_UPDATE_MULTI)
+  {
+    DBUG_PRINT("info",("spider update option start"));
+    Item *item;
+    st_select_lex *select_lex = spider_get_select_lex(this);
+    List_iterator_fast<Item> fi(select_lex->item_list);
+    while ((item = fi++))
+    {
+      if (item->type() == Item::FIELD_ITEM)
+      {
+        Field *field = ((Item_field *)item)->field;
+        if (!(field = field_exchange(field)))
+        {
+          DBUG_PRINT("info",("spider field is for different table"));
+          continue;
+        }
+        spider_set_bit(wide_handler->searched_bitmap, field->field_index);
+        DBUG_PRINT("info",("spider set searched_bitmap=%u",
+          field->field_index));
+      } else {
+        DBUG_PRINT("info",("spider item type is not field"));
+      }
+    }
+  }
+  DBUG_VOID_RETURN;
+}
+
+void ha_spider::set_clone_searched_bitmap()
+{
+  DBUG_ENTER("ha_spider::set_clone_searched_bitmap");
+  DBUG_PRINT("info",("spider searched_bitmap=%p",
+    wide_handler->searched_bitmap));
+#ifndef DBUG_OFF
+  int roop_count;
+  for (roop_count = 0; roop_count < (int) ((table_share->fields + 7) / 8);
+    roop_count++)
+    DBUG_PRINT("info", ("spider before searched_bitmap is %x",
+      ((uchar *) wide_handler->searched_bitmap)[roop_count]));
+#endif
+  memcpy(wide_handler->searched_bitmap,
+    pt_clone_source_handler->wide_handler->searched_bitmap,
+    (table_share->fields + 7) / 8);
+#ifndef DBUG_OFF
+  for (roop_count = 0; roop_count < (int) ((table_share->fields + 7) / 8);
+    roop_count++)
+    DBUG_PRINT("info", ("spider after searched_bitmap is %x",
+      ((uchar *) wide_handler->searched_bitmap)[roop_count]));
+#endif
+  memcpy(wide_handler->ft_discard_bitmap,
+    pt_clone_source_handler->wide_handler->ft_discard_bitmap,
+    (table_share->fields + 7) / 8);
+  DBUG_VOID_RETURN;
+}
+
+void ha_spider::set_searched_bitmap_from_item_list()
+{
+  DBUG_ENTER("ha_spider::set_searched_bitmap_from_item_list");
+  Field *field;
+  Item *item, *item_next;
+  THD *thd = ha_thd();
+  Statement *stmt = thd->stmt_map.find(thd->id);
+  if (stmt && stmt->free_list)
+  {
+    DBUG_PRINT("info",("spider item from stmt"));
+    item_next = stmt->free_list;
+  } else {
+    DBUG_PRINT("info",("spider item from thd"));
+    item_next = thd->free_list;
+  }
+  while ((item = item_next))
+  {
+    DBUG_PRINT("info",("spider item=%p", item));
+    DBUG_PRINT("info",("spider itemtype=%u", item->type()));
+    item_next = item->next;
+    if (item->type() != Item::FIELD_ITEM)
+      continue;
+    field = ((Item_field *) item)->field;
+    DBUG_PRINT("info",("spider field=%p", field));
+    if (!field || !(field = field_exchange(field)))
+      continue;
+    DBUG_PRINT("info",("spider field_index=%u", field->field_index));
+    spider_set_bit(wide_handler->searched_bitmap, field->field_index);
+  }
+  DBUG_VOID_RETURN;
+}
+
+void ha_spider::set_select_column_mode()
+{
+  int roop_count;
+  KEY *key_info;
+  KEY_PART_INFO *key_part;
+  Field *field;
+  THD *thd = wide_handler->trx->thd;
+  DBUG_ENTER("ha_spider::set_select_column_mode");
+  wide_handler->position_bitmap_init = FALSE;
+#ifndef DBUG_OFF
+  for (roop_count = 0; roop_count < (int) ((table_share->fields + 7) / 8);
+    roop_count++)
+    DBUG_PRINT("info", ("spider bitmap is %x",
+      ((uchar *) table->read_set->bitmap)[roop_count]));
+#endif
+  select_column_mode = spider_param_select_column_mode(thd,
+    share->select_column_mode);
+  if (select_column_mode)
+  {
+    DBUG_PRINT("info",("spider searched_bitmap=%p",
+      wide_handler->searched_bitmap));
+    set_searched_bitmap();
+    set_searched_bitmap_from_item_list();
+    if (wide_handler->external_lock_type == F_WRLCK &&
+      wide_handler->sql_command != SQLCOM_SELECT)
+    {
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+      uint part_num = 0;
+      if (wide_handler->update_request)
+        part_num = check_partitioned();
+#endif
+      if (
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+        part_num ||
+#endif
+        table_share->primary_key == MAX_KEY
+      ) {
+        /* need all columns */
+        for (roop_count = 0; roop_count < (int) table_share->fields;
+          roop_count++)
+          spider_set_bit(wide_handler->searched_bitmap, roop_count);
+      } else {
+        /* need primary key columns */
+        key_info = &table_share->key_info[table_share->primary_key];
+        key_part = key_info->key_part;
+        for (roop_count = 0;
+          roop_count < (int) spider_user_defined_key_parts(key_info);
+          roop_count++)
+        {
+          field = key_part[roop_count].field;
+          spider_set_bit(wide_handler->searched_bitmap, field->field_index);
+        }
+      }
+#ifndef DBUG_OFF
+      for (roop_count = 0;
+        roop_count < (int) ((table_share->fields + 7) / 8);
+        roop_count++)
+        DBUG_PRINT("info", ("spider change bitmap is %x",
+          wide_handler->searched_bitmap[roop_count]));
+#endif
+    }
+  }
+  DBUG_VOID_RETURN;
+}
+
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+void ha_spider::check_select_column(bool rnd)
+{
+  THD *thd = wide_handler->trx->thd;
+  DBUG_ENTER("ha_spider::check_select_column");
+  select_column_mode = spider_param_select_column_mode(thd,
+    share->select_column_mode);
+  if (select_column_mode)
+  {
+    if (!rnd)
+    {
+      if (wide_handler->between_flg)
+      {
+        memcpy(wide_handler->idx_read_bitmap,
+          table->read_set->bitmap, (table_share->fields + 7) / 8);
+        memcpy(wide_handler->idx_write_bitmap,
+          table->write_set->bitmap, (table_share->fields + 7) / 8);
+        wide_handler->between_flg = FALSE;
+        wide_handler->idx_bitmap_is_set = TRUE;
+        DBUG_PRINT("info",("spider set idx_bitmap"));
+      } else if (wide_handler->idx_bitmap_is_set)
+      {
+        memcpy(table->read_set->bitmap,
+          wide_handler->idx_read_bitmap,
+          (table_share->fields + 7) / 8);
+        memcpy(table->write_set->bitmap,
+          wide_handler->idx_write_bitmap,
+          (table_share->fields + 7) / 8);
+        DBUG_PRINT("info",("spider copy idx_bitmap"));
+      }
+    } else {
+      if (
+        !wide_handler->rnd_bitmap_is_set &&
+        (
+          wide_handler->between_flg ||
+          wide_handler->idx_bitmap_is_set
+        )
+      ) {
+        memcpy(wide_handler->rnd_read_bitmap,
+          table->read_set->bitmap, (table_share->fields + 7) / 8);
+        memcpy(wide_handler->rnd_write_bitmap,
+          table->write_set->bitmap, (table_share->fields + 7) / 8);
+        wide_handler->between_flg = FALSE;
+        wide_handler->rnd_bitmap_is_set = TRUE;
+        DBUG_PRINT("info",("spider set rnd_bitmap"));
+      } else if (wide_handler->rnd_bitmap_is_set)
+      {
+        memcpy(table->read_set->bitmap,
+          wide_handler->rnd_read_bitmap,
+          (table_share->fields + 7) / 8);
+        memcpy(table->write_set->bitmap,
+          wide_handler->rnd_write_bitmap,
+          (table_share->fields + 7) / 8);
+        DBUG_PRINT("info",("spider copy rnd_bitmap"));
+      }
+    }
+  }
+  DBUG_VOID_RETURN;
+}
+#endif
+
+bool ha_spider::check_and_start_bulk_update(
+  spider_bulk_upd_start bulk_upd_start
+) {
+  DBUG_ENTER("ha_spider::check_and_start_bulk_update");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider bulk_update_start=%d",
+    result_list.bulk_update_start));
+  if (
+    result_list.bulk_update_start == SPD_BU_NOT_START ||
+    (
+      !result_list.bulk_update_mode &&
+      bulk_upd_start == SPD_BU_START_BY_BULK_INIT
+    )
+  ) {
+    THD *thd = ha_thd();
+    int bulk_update_mode = spider_param_bulk_update_mode(thd,
+      share->bulk_update_mode);
+/*
+    longlong split_read = spider_split_read_param(this);
+*/
+    result_list.bulk_update_size = spider_param_bulk_update_size(thd,
+      share->bulk_update_size);
+/*
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+    int bgs_mode = spider_param_bgs_mode(thd, share->bgs_mode);
+#endif
+*/
+    if (!support_bulk_update_sql())
+    {
+      result_list.bulk_update_mode = 0;
+      DBUG_PRINT("info",("spider result_list.bulk_update_mode=%d 1",
+        result_list.bulk_update_mode));
+/*
+    } else if (
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+      bgs_mode ||
+#endif
+      split_read != 9223372036854775807LL
+    ) {
+      result_list.bulk_update_mode = 2;
+      DBUG_PRINT("info",("spider result_list.bulk_update_mode=%d 2",
+        result_list.bulk_update_mode));
+*/
+    } else {
+      if (result_list.bulk_update_start == SPD_BU_NOT_START)
+      {
+        result_list.bulk_update_mode = bulk_update_mode;
+        DBUG_PRINT("info",("spider result_list.bulk_update_mode=%d 3",
+          result_list.bulk_update_mode));
+      } else {
+        result_list.bulk_update_mode = 1;
+        DBUG_PRINT("info",("spider result_list.bulk_update_mode=%d 4",
+          result_list.bulk_update_mode));
+      }
+    }
+    result_list.bulk_update_start = bulk_upd_start;
+    DBUG_RETURN(FALSE);
+  }
+  DBUG_RETURN(TRUE);
+}
+
+int ha_spider::check_and_end_bulk_update(
+  spider_bulk_upd_start bulk_upd_start
+) {
+  int error_num = 0;
+  ha_rows dup_key_found = 0;
+  DBUG_ENTER("ha_spider::check_and_end_bulk_update");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider bulk_update_start=%d",
+    result_list.bulk_update_start));
+  DBUG_PRINT("info",("spider bulk_update_mode=%d",
+    result_list.bulk_update_mode));
+  if (result_list.bulk_update_start == bulk_upd_start)
+  {
+    if (result_list.bulk_update_mode)
+      error_num = spider_db_bulk_update_end(this, &dup_key_found);
+    result_list.bulk_update_size = 0;
+    result_list.bulk_update_mode = 0;
+    result_list.bulk_update_start = SPD_BU_NOT_START;
+  }
+  DBUG_RETURN(error_num);
+}
+
+uint ha_spider::check_partitioned()
+{
+  uint part_num;
+  DBUG_ENTER("ha_spider::check_partitioned");
+  DBUG_PRINT("info",("spider this=%p", this));
+  table->file->get_no_parts("", &part_num);
+  if (part_num)
+    DBUG_RETURN(part_num);
+
+  TABLE_LIST *tmp_table_list = table->pos_in_table_list;
+  while ((tmp_table_list = tmp_table_list->parent_l))
+  {
+    tmp_table_list->table->file->get_no_parts("", &part_num);
+    if (part_num)
+      DBUG_RETURN(part_num);
+  }
+  DBUG_RETURN(0);
+}
+
+void ha_spider::check_direct_order_limit()
+{
+  int roop_count;
+  DBUG_ENTER("ha_spider::check_direct_order_limit");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!result_list.check_direct_order_limit)
+  {
+    if (spider_check_direct_order_limit(this))
+    {
+      result_list.direct_order_limit = TRUE;
+      sql_kinds = SPIDER_SQL_KIND_SQL;
+      for (roop_count = 0; roop_count < (int) share->link_count; roop_count++)
+        sql_kind[roop_count] = SPIDER_SQL_KIND_SQL;
+    } else
+      result_list.direct_order_limit = FALSE;
+
+    spider_set_direct_limit_offset(this);
+    result_list.check_direct_order_limit = TRUE;
+  }
+  DBUG_VOID_RETURN;
+}
+
+/********************************************************************
+ * Check whether the current query is a SELECT DISTINCT using an
+ * index in a non-partitioned Spider configuration, with a
+ * projection list that consists solely of the first key prefix
+ * column.
+ *
+ * For a SELECT DISTINCT query using an index in a non-partitioned
+ * Spider configuration, with a projection list that consists
+ * solely of the first key prefix, set the internal row retrieval
+ * limit to avoid visiting each row multiple times.
+ ********************************************************************/
+void ha_spider::check_distinct_key_query()
+{
+  DBUG_ENTER( "ha_spider::check_distinct_key_query" );
+
+  if ( result_list.direct_distinct && !partition_handler_share->handlers &&
+       result_list.keyread && result_list.check_direct_order_limit )
+  {
+    // SELECT DISTINCT query using an index in a non-partitioned configuration
+    KEY_PART_INFO*  key_part = result_list.key_info->key_part;
+    Field*          key_field = key_part->field;
+
+    if ( is_sole_projection_field( key_field->field_index ) )
+    {
+      // Projection list consists solely of the first key prefix column
+
+      // Set the internal row retrieval limit to avoid visiting each row
+      // multiple times.  This fixes a Spider performance bug that
+      // caused each row to be visited multiple times.
+      result_list.internal_limit = 1;
+    }
+  }
+
+  DBUG_VOID_RETURN;
+}
+
+/********************************************************************
+ * Determine whether the current query's projection list
+ * consists solely of the specified column.
+ *
+ * Params   IN      - field_index:
+ *                    Field index of the column of interest within
+ *                    its table.
+ *
+ * Returns  TRUE    - if the query's projection list consists
+ *                    solely of the specified column.
+ *          FALSE   - otherwise.
+ ********************************************************************/
+bool ha_spider::is_sole_projection_field(
+  uint16 field_index
+) {
+  // NOTE: It is assumed that spider_db_append_select_columns() has already been called
+  //       to build the bitmap of projection fields
+  bool                is_ha_sole_projection_field;
+  uint                loop_index, dbton_id;
+  spider_db_handler*  dbton_hdl;
+  DBUG_ENTER( "ha_spider::is_sole_projection_field" );
+
+  for ( loop_index = 0; loop_index < share->use_sql_dbton_count; loop_index++ )
+  {
+    dbton_id    = share->use_sql_dbton_ids[ loop_index ];
+    dbton_hdl   = dbton_handler[ dbton_id ];
+
+    if ( dbton_hdl->first_link_idx >= 0 )
+    {
+      is_ha_sole_projection_field = dbton_hdl->is_sole_projection_field( field_index );
+      if ( !is_ha_sole_projection_field )
+      {
+        DBUG_RETURN( FALSE );
+      }
+    }
+  }
+
+  DBUG_RETURN( TRUE );
+}
+
+int ha_spider::check_ha_range_eof()
+{
+  DBUG_ENTER("ha_spider::check_ha_range_eof");
+  DBUG_PRINT("info",("spider this=%p", this));
+  const key_range *end_key = result_list.end_key;
+  DBUG_PRINT("info",("spider use_both_key=%s",
+    result_list.use_both_key ? "TRUE" : "FALSE"));
+  DBUG_PRINT("info",("spider sql_kind[%u]=%u",
+    search_link_idx, sql_kind[search_link_idx]));
+  DBUG_PRINT("info",("spider sql_command=%u", wide_handler->sql_command));
+  if (
+    result_list.use_both_key &&
+    (sql_kind[search_link_idx] & SPIDER_SQL_KIND_HANDLER) &&
+    wide_handler->sql_command != SQLCOM_HA_READ
+  ) {
+    int cmp_result = key_cmp(result_list.key_info->key_part,
+      end_key->key, end_key->length);
+    DBUG_PRINT("info",("spider cmp_result=%d", cmp_result));
+    if (
+      cmp_result > 0 ||
+      (end_key->flag == HA_READ_BEFORE_KEY && !cmp_result)
+    ) {
+      table->status = STATUS_NOT_FOUND;
+      DBUG_RETURN(HA_ERR_END_OF_FILE);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::drop_tmp_tables()
+{
+  int error_num = 0, tmp_error_num, need_mon;
+  DBUG_ENTER("ha_spider::drop_tmp_tables");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (result_list.tmp_tables_created)
+  {
+    int roop_start, roop_end, roop_count, tmp_lock_mode;
+    tmp_lock_mode = spider_conn_lock_mode(this);
+    if (tmp_lock_mode)
+    {
+      /* "for update" or "lock in share mode" */
+      roop_start = spider_conn_link_idx_next(share->link_statuses,
+        conn_link_idx, -1, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY);
+      roop_end = share->link_count;
+    } else {
+      roop_start = search_link_idx;
+      roop_end = search_link_idx + 1;
+    }
+
+    for (roop_count = roop_start; roop_count < roop_end;
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        conn_link_idx, roop_count, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY)
+    ) {
+      if (spider_bit_is_set(result_list.tmp_table_created, roop_count))
+      {
+        uint dbton_id = share->use_sql_dbton_ids[roop_count];
+        spider_db_handler *dbton_hdl = dbton_handler[dbton_id];
+        SPIDER_CONN *conn = conns[roop_count];
+        pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+        if (dbton_hdl->need_lock_before_set_sql_for_exec(
+          SPIDER_SQL_TYPE_TMP_SQL))
+        {
+          pthread_mutex_lock(&conn->mta_conn_mutex);
+          SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        }
+        if ((error_num = dbton_hdl->set_sql_for_exec(
+          SPIDER_SQL_TYPE_TMP_SQL, roop_count)))
+        {
+          if (dbton_hdl->need_lock_before_set_sql_for_exec(
+            SPIDER_SQL_TYPE_TMP_SQL))
+          {
+            SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+            pthread_mutex_unlock(&conn->mta_conn_mutex);
+          }
+          DBUG_RETURN(error_num);
+        }
+        if (!dbton_hdl->need_lock_before_set_sql_for_exec(
+          SPIDER_SQL_TYPE_TMP_SQL))
+        {
+          pthread_mutex_lock(&conn->mta_conn_mutex);
+          SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        }
+        conn->need_mon = &need_mon;
+        DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = TRUE;
+        conn->mta_conn_mutex_unlock_later = TRUE;
+        if ((tmp_error_num = spider_db_set_names(this, conn, roop_count)))
+        {
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+          if (
+            share->monitoring_kind[roop_count] &&
+            need_mons[roop_count]
+          ) {
+            tmp_error_num = spider_ping_table_mon_from_table(
+                wide_handler->trx,
+                wide_handler->trx->thd,
+                share,
+                roop_count,
+                (uint32) share->monitoring_sid[roop_count],
+                share->table_name,
+                share->table_name_length,
+                conn_link_idx[roop_count],
+                NULL,
+                0,
+                share->monitoring_kind[roop_count],
+                share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
+                TRUE
+              );
+          }
+          error_num = tmp_error_num;
+        }
+        if (!tmp_error_num)
+        {
+          spider_conn_set_timeout_from_share(conn, roop_count,
+            wide_handler->trx->thd, share);
+          if (dbton_hdl->execute_sql(
+            SPIDER_SQL_TYPE_DROP_TMP_TABLE_SQL,
+            conn,
+            -1,
+            &need_mons[roop_count])
+          ) {
+            DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+            DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+            conn->mta_conn_mutex_lock_already = FALSE;
+            conn->mta_conn_mutex_unlock_later = FALSE;
+            tmp_error_num = spider_db_errorno(conn);
+            if (
+              share->monitoring_kind[roop_count] &&
+              need_mons[roop_count]
+            ) {
+              tmp_error_num = spider_ping_table_mon_from_table(
+                  wide_handler->trx,
+                  wide_handler->trx->thd,
+                  share,
+                  roop_count,
+                  (uint32) share->monitoring_sid[roop_count],
+                  share->table_name,
+                  share->table_name_length,
+                  conn_link_idx[roop_count],
+                  NULL,
+                  0,
+                  share->monitoring_kind[roop_count],
+                  share->monitoring_limit[roop_count],
+                  share->monitoring_flag[roop_count],
+                  TRUE
+                );
+            }
+            error_num = tmp_error_num;
+          } else {
+            DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+            DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+            conn->mta_conn_mutex_lock_already = FALSE;
+            conn->mta_conn_mutex_unlock_later = FALSE;
+            SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+            pthread_mutex_unlock(&conn->mta_conn_mutex);
+          }
+        }
+        spider_clear_bit(result_list.tmp_table_created, roop_count);
+      }
+    }
+    result_list.tmp_tables_created = FALSE;
+  }
+  DBUG_RETURN(error_num);
+}
+
+bool ha_spider::handler_opened(
+  int link_idx,
+  uint tgt_conn_kind
+) {
+  DBUG_ENTER("ha_spider::handler_opened");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider link_idx=%d", link_idx));
+  DBUG_PRINT("info",("spider tgt_conn_kind=%u", tgt_conn_kind));
+  if (
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    (
+      tgt_conn_kind == SPIDER_CONN_KIND_MYSQL &&
+#endif
+      spider_bit_is_set(m_handler_opened, link_idx)
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    ) ||
+    (
+      tgt_conn_kind == SPIDER_CONN_KIND_HS_READ &&
+      spider_bit_is_set(r_handler_opened, link_idx)
+    ) ||
+    (
+      tgt_conn_kind == SPIDER_CONN_KIND_HS_WRITE &&
+      spider_bit_is_set(w_handler_opened, link_idx)
+    )
+#endif
+  ) {
+    DBUG_PRINT("info",("spider TRUE"));
+    DBUG_RETURN(TRUE);
+  }
+  DBUG_PRINT("info",("spider FALSE"));
+  DBUG_RETURN(FALSE);
+}
+
+void ha_spider::set_handler_opened(
+  int link_idx
+) {
+  DBUG_ENTER("ha_spider::set_handler_opened");
+  DBUG_PRINT("info",("spider this=%p", this));
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (conn_kind[link_idx] == SPIDER_CONN_KIND_MYSQL)
+#endif
+    spider_set_bit(m_handler_opened, link_idx);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  else if (conn_kind[link_idx] == SPIDER_CONN_KIND_HS_READ)
+    spider_set_bit(r_handler_opened, link_idx);
+  else
+    spider_set_bit(w_handler_opened, link_idx);
+#endif
+  DBUG_VOID_RETURN;
+}
+
+void ha_spider::clear_handler_opened(
+  int link_idx,
+  uint tgt_conn_kind
+) {
+  DBUG_ENTER("ha_spider::clear_handler_opened");
+  DBUG_PRINT("info",("spider this=%p", this));
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (tgt_conn_kind == SPIDER_CONN_KIND_MYSQL)
+#endif
+    spider_clear_bit(m_handler_opened, link_idx);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  else if (tgt_conn_kind == SPIDER_CONN_KIND_HS_READ)
+    spider_clear_bit(r_handler_opened, link_idx);
+  else
+    spider_clear_bit(w_handler_opened, link_idx);
+#endif
+  DBUG_VOID_RETURN;
+}
+
+int ha_spider::close_opened_handler(
+  int link_idx,
+  bool release_conn
+) {
+  int error_num = 0, error_num2;
+  DBUG_ENTER("ha_spider::close_opened_handler");
+  DBUG_PRINT("info",("spider this=%p", this));
+
+  if (spider_bit_is_set(m_handler_opened, link_idx))
+  {
+    if ((error_num2 = spider_db_close_handler(this,
+      conns[link_idx], link_idx, SPIDER_CONN_KIND_MYSQL))
+    ) {
+      if (
+        share->monitoring_kind[link_idx] &&
+        need_mons[link_idx]
+      ) {
+        error_num2 = spider_ping_table_mon_from_table(
+          wide_handler->trx,
+          wide_handler->trx->thd,
+          share,
+          link_idx,
+          (uint32) share->monitoring_sid[link_idx],
+          share->table_name,
+          share->table_name_length,
+          conn_link_idx[link_idx],
+          NULL,
+          0,
+          share->monitoring_kind[link_idx],
+          share->monitoring_limit[link_idx],
+          share->monitoring_flag[link_idx],
+          TRUE
+        );
+      }
+      error_num = error_num2;
+    }
+    spider_clear_bit(m_handler_opened, link_idx);
+    if (release_conn && !conns[link_idx]->join_trx)
+    {
+      spider_free_conn_from_trx(wide_handler->trx, conns[link_idx],
+        FALSE, FALSE, NULL);
+      conns[link_idx] = NULL;
+    }
+  }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (spider_bit_is_set(r_handler_opened, link_idx))
+  {
+    if ((error_num2 = spider_db_close_handler(this,
+      hs_r_conns[link_idx], link_idx, SPIDER_CONN_KIND_HS_READ))
+    ) {
+      if (
+        share->monitoring_kind[link_idx] &&
+        need_mons[link_idx]
+      ) {
+        error_num2 = spider_ping_table_mon_from_table(
+          wide_handler->trx,
+          wide_handler->trx->thd,
+          share,
+          link_idx,
+          (uint32) share->monitoring_sid[link_idx],
+          share->table_name,
+          share->table_name_length,
+          conn_link_idx[link_idx],
+          NULL,
+          0,
+          share->monitoring_kind[link_idx],
+          share->monitoring_limit[link_idx],
+          share->monitoring_flag[link_idx],
+          TRUE
+        );
+      }
+      error_num = error_num2;
+    }
+    spider_clear_bit(r_handler_opened, link_idx);
+    if (release_conn && !hs_w_conns[link_idx]->join_trx)
+    {
+      if (
+        !hs_r_conns[link_idx]->opened_handlers &&
+        wide_handler->trx->trx_hs_r_conn_adjustment ==
+          trx_hs_r_conn_adjustment &&
+        spider_param_hs_r_conn_recycle_mode(wide_handler->trx->thd) != 2
+      ) {
+        wide_handler->trx->trx_hs_r_conn_adjustment++;
+      }
+      spider_free_conn_from_trx(wide_handler->trx, hs_r_conns[link_idx],
+        FALSE, FALSE, NULL);
+      hs_r_conns[link_idx] = NULL;
+    }
+  }
+  if (spider_bit_is_set(w_handler_opened, link_idx))
+  {
+    if ((error_num2 = spider_db_close_handler(this,
+      hs_w_conns[link_idx], link_idx, SPIDER_CONN_KIND_HS_WRITE))
+    ) {
+      if (
+        share->monitoring_kind[link_idx] &&
+        need_mons[link_idx]
+      ) {
+        error_num2 = spider_ping_table_mon_from_table(
+          wide_handler->trx,
+          wide_handler->trx->thd,
+          share,
+          link_idx,
+          (uint32) share->monitoring_sid[link_idx],
+          share->table_name,
+          share->table_name_length,
+          conn_link_idx[link_idx],
+          NULL,
+          0,
+          share->monitoring_kind[link_idx],
+          share->monitoring_limit[link_idx],
+          share->monitoring_flag[link_idx],
+          TRUE
+        );
+      }
+      error_num = error_num2;
+    }
+    spider_clear_bit(w_handler_opened, link_idx);
+    if (release_conn && !hs_w_conns[link_idx]->join_trx)
+    {
+      if (
+        !hs_w_conns[link_idx]->opened_handlers &&
+        wide_handler->trx->trx_hs_w_conn_adjustment ==
+          trx_hs_w_conn_adjustment &&
+        spider_param_hs_w_conn_recycle_mode(wide_handler->trx->thd) != 2
+      ) {
+        wide_handler->trx->trx_hs_w_conn_adjustment++;
+      }
+      spider_free_conn_from_trx(wide_handler->trx, hs_w_conns[link_idx],
+        FALSE, FALSE, NULL);
+      hs_w_conns[link_idx] = NULL;
+    }
+  }
+#endif
+  DBUG_RETURN(error_num);
+}
+
+int ha_spider::index_handler_init()
+{
+  int lock_mode, error_num;
+  int roop_start, roop_end, roop_count;
+  DBUG_ENTER("ha_spider::index_handler_init");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!init_index_handler)
+  {
+    init_index_handler = TRUE;
+    lock_mode = spider_conn_lock_mode(this);
+    if (lock_mode)
+    {
+      /* "for update" or "lock in share mode" */
+      roop_start = spider_conn_link_idx_next(share->link_statuses,
+        conn_link_idx, -1, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY);
+      roop_end = share->link_count;
+    } else {
+      roop_start = search_link_idx;
+      roop_end = search_link_idx + 1;
+    }
+    sql_kinds = 0;
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+    direct_update_kinds = 0;
+#endif
+    for (roop_count = roop_start; roop_count < roop_end;
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        conn_link_idx, roop_count, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY)
+    ) {
+      if (
+        spider_conn_use_handler(this, lock_mode, roop_count) &&
+        spider_conn_need_open_handler(this, active_index, roop_count)
+      ) {
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+        uint tmp_conn_kind1;
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+        if (
+          do_direct_update &&
+          spider_bit_is_set(do_hs_direct_update, roop_count)
+        ) {
+          tmp_conn_kind1 = SPIDER_CONN_KIND_HS_WRITE;
+        } else {
+#endif
+          tmp_conn_kind1 = conn_kind[roop_count];
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+        }
+#endif
+#endif
+        if ((error_num = spider_db_open_handler(this,
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+          (tmp_conn_kind1 == SPIDER_CONN_KIND_MYSQL ?
+#endif
+            conns[roop_count]
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+            : tmp_conn_kind1 == SPIDER_CONN_KIND_HS_READ ?
+              hs_r_conns[roop_count] : hs_w_conns[roop_count]
+          )
+#endif
+          , roop_count))
+        ) {
+          if (
+            share->monitoring_kind[roop_count] &&
+            need_mons[roop_count]
+          ) {
+            error_num = spider_ping_table_mon_from_table(
+                wide_handler->trx,
+                wide_handler->trx->thd,
+                share,
+                roop_count,
+                (uint32) share->monitoring_sid[roop_count],
+                share->table_name,
+                share->table_name_length,
+                conn_link_idx[roop_count],
+                NULL,
+                0,
+                share->monitoring_kind[roop_count],
+                share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
+                TRUE
+              );
+          }
+          DBUG_RETURN(error_num);
+        }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+        uint tmp_conn_kind2 = conn_kind[roop_count];
+        conn_kind[roop_count] = tmp_conn_kind1;
+#endif
+#endif
+        set_handler_opened(roop_count);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+        conn_kind[roop_count] = tmp_conn_kind2;
+#endif
+#endif
+      }
+    }
+    if (sql_kinds & SPIDER_SQL_KIND_HANDLER)
+    {
+      st_select_lex *select_lex;
+      longlong select_limit;
+      longlong offset_limit;
+      spider_get_select_limit(this, &select_lex, &select_limit, &offset_limit);
+      DBUG_PRINT("info",("spider SPIDER_SQL_KIND_HANDLER"));
+      result_list.semi_split_read = 1;
+      result_list.semi_split_read_limit = 9223372036854775807LL;
+      if (select_limit == 9223372036854775807LL)
+      {
+        DBUG_PRINT("info",("spider set limit to 1"));
+        result_list.semi_split_read_base = 1;
+        result_list.split_read = 1;
+      } else {
+        DBUG_PRINT("info",("spider set limit to %lld", select_limit));
+        result_list.semi_split_read_base = select_limit;
+        result_list.split_read = select_limit;
+      }
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::rnd_handler_init()
+{
+  int error_num, lock_mode;
+  int roop_start, roop_end, roop_count;
+  DBUG_ENTER("ha_spider::rnd_handler_init");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!init_rnd_handler)
+  {
+    init_rnd_handler = TRUE;
+    lock_mode = spider_conn_lock_mode(this);
+    if (lock_mode)
+    {
+      /* "for update" or "lock in share mode" */
+      roop_start = spider_conn_link_idx_next(share->link_statuses,
+        conn_link_idx, -1, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY);
+      roop_end = share->link_count;
+    } else {
+      roop_start = search_link_idx;
+      roop_end = search_link_idx + 1;
+    }
+    sql_kinds = 0;
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+    direct_update_kinds = 0;
+#endif
+    for (roop_count = roop_start; roop_count < roop_end;
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        conn_link_idx, roop_count, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY)
+    ) {
+      if (
+        spider_conn_use_handler(this, lock_mode, roop_count) &&
+        spider_conn_need_open_handler(this, MAX_KEY, roop_count)
+      ) {
+        if ((error_num = spider_db_open_handler(this,
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+          (conn_kind[roop_count] == SPIDER_CONN_KIND_MYSQL ?
+#endif
+            conns[roop_count]
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+            : conn_kind[roop_count] == SPIDER_CONN_KIND_HS_READ ?
+              hs_r_conns[roop_count] : hs_w_conns[roop_count]
+          )
+#endif
+          , roop_count))
+        ) {
+          if (
+            share->monitoring_kind[roop_count] &&
+            need_mons[roop_count]
+          ) {
+            error_num = spider_ping_table_mon_from_table(
+                wide_handler->trx,
+                wide_handler->trx->thd,
+                share,
+                roop_count,
+                (uint32) share->monitoring_sid[roop_count],
+                share->table_name,
+                share->table_name_length,
+                conn_link_idx[roop_count],
+                NULL,
+                0,
+                share->monitoring_kind[roop_count],
+                share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
+                TRUE
+              );
+          }
+          DBUG_RETURN(error_num);
+        }
+        set_handler_opened(roop_count);
+      }
+    }
+    if (sql_kinds & SPIDER_SQL_KIND_HANDLER)
+    {
+      st_select_lex *select_lex;
+      longlong select_limit;
+      longlong offset_limit;
+      spider_get_select_limit(this, &select_lex, &select_limit, &offset_limit);
+      DBUG_PRINT("info",("spider SPIDER_SQL_KIND_HANDLER"));
+      result_list.semi_split_read = 1;
+      result_list.semi_split_read_limit = 9223372036854775807LL;
+      if (select_limit == 9223372036854775807LL)
+      {
+        DBUG_PRINT("info",("spider set limit to 1"));
+        result_list.semi_split_read_base = 1;
+        result_list.split_read = 1;
+      } else {
+        DBUG_PRINT("info",("spider set limit to %lld", select_limit));
+        result_list.semi_split_read_base = select_limit;
+        result_list.split_read = select_limit;
+      }
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+void ha_spider::set_error_mode()
+{
+  THD *thd = ha_thd();
+  DBUG_ENTER("ha_spider::set_error_mode");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (thd_sql_command(thd))
+  {
+    case SQLCOM_SELECT:
+    case SQLCOM_SHOW_DATABASES:
+    case SQLCOM_SHOW_TABLES:
+    case SQLCOM_SHOW_FIELDS:
+    case SQLCOM_SHOW_KEYS:
+    case SQLCOM_SHOW_VARIABLES:
+    case SQLCOM_SHOW_STATUS:
+    case SQLCOM_SHOW_ENGINE_LOGS:
+    case SQLCOM_SHOW_ENGINE_STATUS:
+    case SQLCOM_SHOW_ENGINE_MUTEX:
+    case SQLCOM_SHOW_PROCESSLIST:
+    case SQLCOM_SHOW_BINLOG_STAT:
+    case SQLCOM_SHOW_SLAVE_STAT:
+    case SQLCOM_SHOW_GRANTS:
+    case SQLCOM_SHOW_CREATE:
+    case SQLCOM_SHOW_CHARSETS:
+    case SQLCOM_SHOW_COLLATIONS:
+    case SQLCOM_SHOW_CREATE_DB:
+    case SQLCOM_SHOW_TABLE_STATUS:
+    case SQLCOM_SHOW_TRIGGERS:
+    case SQLCOM_CHANGE_DB:
+    case SQLCOM_HA_OPEN:
+    case SQLCOM_HA_CLOSE:
+    case SQLCOM_HA_READ:
+    case SQLCOM_SHOW_SLAVE_HOSTS:
+    case SQLCOM_SHOW_BINLOG_EVENTS:
+    case SQLCOM_SHOW_WARNS:
+    case SQLCOM_EMPTY_QUERY:
+    case SQLCOM_SHOW_ERRORS:
+    case SQLCOM_SHOW_STORAGE_ENGINES:
+    case SQLCOM_SHOW_PRIVILEGES:
+    case SQLCOM_HELP:
+    case SQLCOM_SHOW_CREATE_PROC:
+    case SQLCOM_SHOW_CREATE_FUNC:
+    case SQLCOM_SHOW_STATUS_PROC:
+    case SQLCOM_SHOW_STATUS_FUNC:
+    case SQLCOM_SHOW_PROC_CODE:
+    case SQLCOM_SHOW_FUNC_CODE:
+    case SQLCOM_SHOW_AUTHORS:
+    case SQLCOM_SHOW_PLUGINS:
+    case SQLCOM_SHOW_CONTRIBUTORS:
+    case SQLCOM_SHOW_CREATE_EVENT:
+    case SQLCOM_SHOW_EVENTS:
+    case SQLCOM_SHOW_CREATE_TRIGGER:
+    case SQLCOM_SHOW_PROFILE:
+    case SQLCOM_SHOW_PROFILES:
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    case SQLCOM_HS_READ:
+#endif
+      error_mode = spider_param_error_read_mode(thd, share->error_read_mode);
+      DBUG_PRINT("info",("spider read error_mode=%d", error_mode));
+      break;
+    default:
+      error_mode = spider_param_error_write_mode(thd, share->error_write_mode);
+      DBUG_PRINT("info",("spider write error_mode=%d", error_mode));
+      break;
+  }
+  DBUG_VOID_RETURN;
+}
+
+void ha_spider::backup_error_status()
+{
+  THD *thd = ha_thd();
+  DBUG_ENTER("ha_spider::backup_error_status");
+  if (thd)
+    da_status = thd->is_error();
+  DBUG_VOID_RETURN;
+}
+
+int ha_spider::check_error_mode(
+  int error_num
+) {
+  THD *thd = ha_thd();
+  DBUG_ENTER("ha_spider::check_error_mode");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider error_num=%d", error_num));
+  if (!thd || !error_mode)
+    DBUG_RETURN(error_num);
+  DBUG_PRINT("info",("spider error reset"));
+  SPIDER_RESTORE_DASTATUS;
+  DBUG_RETURN(0);
+}
+
+int ha_spider::check_error_mode_eof(
+  int error_num
+) {
+  DBUG_ENTER("ha_spider::check_error_mode_eof");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider error_num=%d", error_num));
+  if (error_num == HA_ERR_END_OF_FILE)
+    DBUG_RETURN(HA_ERR_END_OF_FILE);
+  if (check_error_mode(error_num))
+    DBUG_RETURN(error_num);
+  DBUG_PRINT("info",("spider result_list.finish_flg = TRUE"));
+  result_list.finish_flg = TRUE;
+  if (result_list.current)
+  {
+    DBUG_PRINT("info",("spider result_list.current->finish_flg = TRUE"));
+    result_list.current->finish_flg = TRUE;
+  }
+  table->status = STATUS_NOT_FOUND;
+  DBUG_RETURN(HA_ERR_END_OF_FILE);
+}
+
+void ha_spider::check_pre_call(
+  bool use_parallel
+) {
+  THD* thd = ha_thd();
+  LEX *lex = thd->lex;
+  st_select_lex *select_lex = spider_get_select_lex(this);
+  int skip_parallel_search =
+    spider_param_skip_parallel_search(thd, share->skip_parallel_search);
+  DBUG_ENTER("ha_spider::check_pre_call");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (
+    (
+      (skip_parallel_search & 1) &&
+      lex->sql_command != SQLCOM_SELECT // such like insert .. select ..
+    ) ||
+    (
+      (skip_parallel_search & 2) &&
+#ifdef SPIDER_SQL_CACHE_IS_IN_LEX
+      lex->sql_cache == LEX::SQL_NO_CACHE //  for mysqldump
+#else
+      select_lex && select_lex->sql_cache == SELECT_LEX::SQL_NO_CACHE //  for mysqldump
+#endif
+    )
+  ) {
+    use_pre_call = FALSE;
+    DBUG_VOID_RETURN;
+  }
+  if (
+    use_parallel &&
+    thd->query_id != partition_handler_share->parallel_search_query_id
+  ) {
+    partition_handler_share->parallel_search_query_id = thd->query_id;
+    ++wide_handler->trx->parallel_search_count;
+  }
+  use_pre_call = use_parallel;
+  if (!use_pre_call)
+  {
+    longlong select_limit;
+    longlong offset_limit;
+    spider_get_select_limit_from_select_lex(
+      select_lex, &select_limit, &offset_limit);
+    if (
+      select_lex &&
+      (!select_lex->explicit_limit || !select_limit)
+    ) {
+      use_pre_call = TRUE;
+    }
+  }
+  DBUG_VOID_RETURN;
+}
+
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+void ha_spider::check_insert_dup_update_pushdown()
+{
+  THD *thd = wide_handler->trx->thd;
+  DBUG_ENTER("ha_spider::check_insert_dup_update_pushdown");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!spider_param_direct_dup_insert(thd, share->direct_dup_insert))
+  {
+    DBUG_PRINT("info",("spider FALSE by direct_dup_insert"));
+    DBUG_VOID_RETURN;
+  }
+  wide_handler->direct_update_fields = &thd->lex->update_list;
+  wide_handler->direct_update_values = &thd->lex->value_list;
+  if (!append_dup_update_pushdown_sql_part(NULL, 0))
+  {
+    result_list.insert_dup_update_pushdown = TRUE;
+  }
+  DBUG_VOID_RETURN;
+}
+#endif
+
+#ifdef HA_CAN_BULK_ACCESS
+SPIDER_BULK_ACCESS_LINK *ha_spider::create_bulk_access_link()
+{
+  uchar *ref;
+  ha_spider *spider;
+  SPIDER_BULK_ACCESS_LINK *bulk_access_link;
+  DBUG_ENTER("ha_spider::create_bulk_access_link");
+  DBUG_PRINT("info",("spider this=%p", this));
+/*
+  if (!init_ha_mem_root)
+  {
+    SPD_INIT_ALLOC_ROOT(&ha_mem_root, sizeof(ha_spider) * 16,
+      sizeof(ha_spider) * 16, MYF(MY_WME));
+    init_ha_mem_root = TRUE;
+  }
+*/
+  if (!(bulk_access_link = (SPIDER_BULK_ACCESS_LINK *)
+    spider_bulk_malloc(spider_current_trx, 168, MYF(MY_WME),
+    &bulk_access_link, (uint) (sizeof(SPIDER_BULK_ACCESS_LINK)),
+    &ref, (uint) (ALIGN_SIZE(ref_length) * 2),
+    NullS))
+  ) {
+    goto error_bulk_malloc;
+  }
+  SPD_INIT_ALLOC_ROOT(&bulk_access_link->mem_root, sizeof(ha_spider), 0,
+    MYF(MY_WME));
+/*
+  if (!(spider = new ha_spider(spider_hton_ptr, table_share)))
+  if (!(spider = (ha_spider *) spider_create_handler(
+    spider_hton_ptr, table_share, &ha_mem_root)))
+*/
+  if (!(spider = (ha_spider *) spider_create_handler(
+    spider_hton_ptr, table_share, &bulk_access_link->mem_root)))
+  {
+    goto error_new_spider;
+  }
+  DBUG_PRINT("info",("spider spider=%p", spider));
+  bulk_access_link->spider = spider;
+  spider->ref = ref;
+  bulk_access_link->next = NULL;
+  spider->is_clone = TRUE;
+  spider->is_bulk_access_clone = TRUE;
+  spider->pt_clone_source_handler = this;
+  if (spider->ha_open(table, share->table_name, table->db_stat,
+    HA_OPEN_IGNORE_IF_LOCKED))
+  {
+    goto error_ha_open;
+  }
+  DBUG_RETURN(bulk_access_link);
+
+error_ha_open:
+  delete spider;
+error_new_spider:
+  free_root(&bulk_access_link->mem_root, MYF(0));
+  spider_free(spider_current_trx, bulk_access_link, MYF(0));
+error_bulk_malloc:
+  DBUG_RETURN(NULL);
+}
+
+void ha_spider::delete_bulk_access_link(
+  SPIDER_BULK_ACCESS_LINK *bulk_access_link
+) {
+  ha_spider *spider = bulk_access_link->spider;
+  DBUG_ENTER("ha_spider::delete_bulk_access_link");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider spider=%p", spider));
+  DBUG_PRINT("info",("spider bulk_access_link->spider->dbton_handler=%p",
+    spider->dbton_handler));
+  DBUG_PRINT("info",("spider ptr bulk_access_link->spider->dbton_handler=%p",
+    &spider->dbton_handler));
+  spider->close();
+  delete spider;
+  free_root(&bulk_access_link->mem_root, MYF(0));
+  spider_free(spider_current_trx, bulk_access_link, MYF(0));
+  DBUG_VOID_RETURN;
+}
+
+int ha_spider::sync_from_clone_source(
+  ha_spider *spider
+) {
+  int error_num;
+  DBUG_ENTER("ha_spider::sync_from_clone_source");
+  sync_from_clone_source_base(spider);
+  if (!synced_from_clone_source)
+  {
+    DBUG_PRINT("info",("spider synced from clone source all"));
+    wide_handler->trx = spider->wide_handler->trx;
+    sql_command = spider->sql_command;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    conn_kinds = spider->conn_kinds;
+    memcpy(conn_kind, spider->conn_kind, sizeof(uint) * share->link_count);
+#endif
+    wide_handler->external_lock_type =
+      spider->wide_handler->external_lock_type;
+    selupd_lock_mode = spider->selupd_lock_mode;
+    update_request = spider->update_request;
+    lock_mode = spider->lock_mode;
+    high_priority = spider->high_priority;
+    insert_delayed = spider->insert_delayed;
+    low_priority = spider->low_priority;
+    memcpy(conns, spider->conns,
+      sizeof(SPIDER_CONN *) * share->link_count);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    memcpy(hs_r_conns, spider->hs_r_conns,
+      sizeof(SPIDER_CONN *) * share->link_count);
+    memcpy(hs_w_conns, spider->hs_w_conns,
+      sizeof(SPIDER_CONN *) * share->link_count);
+#endif
+    spider_thread_id = spider->spider_thread_id;
+    trx_conn_adjustment = spider->trx_conn_adjustment;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    trx_hs_r_conn_adjustment = spider->trx_hs_r_conn_adjustment;
+    trx_hs_w_conn_adjustment = spider->trx_hs_w_conn_adjustment;
+#endif
+    search_link_idx = spider->search_link_idx;
+    external_lock_cnt = spider->external_lock_cnt;
+    uint roop_count, dbton_id;
+    spider_db_handler *dbton_hdl, *dbton_hdl2;
+    for (roop_count = 0; roop_count < share->use_dbton_count; roop_count++)
+    {
+      dbton_id = share->use_dbton_ids[roop_count];
+      dbton_hdl = dbton_handler[dbton_id];
+      dbton_hdl2 = spider->dbton_handler[dbton_id];
+      dbton_hdl->sync_from_clone_source(dbton_hdl2);
+    }
+    synced_from_clone_source = TRUE;
+  } else if (external_lock_cnt != spider->external_lock_cnt)
+  {
+    DBUG_PRINT("info",("spider synced from clone source"));
+    sql_command = spider->sql_command;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    conn_kinds = spider->conn_kinds;
+    memcpy(conn_kind, spider->conn_kind, sizeof(uint) * share->link_count);
+#endif
+    wide_handler->external_lock_type =
+      spider->wide_handler->external_lock_type;
+    selupd_lock_mode = spider->selupd_lock_mode;
+    update_request = spider->update_request;
+    lock_mode = spider->lock_mode;
+    high_priority = spider->high_priority;
+    insert_delayed = spider->insert_delayed;
+    low_priority = spider->low_priority;
+
+    if ((error_num = spider_check_trx_and_get_conn(
+      spider->wide_handler->trx->thd,
+      this, TRUE)))
+    {
+      DBUG_RETURN(error_num);
+    }
+    external_lock_cnt = spider->external_lock_cnt;
+  }
+
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (spider->hs_pushed_ret_fields_num < MAX_FIELDS)
+  {
+    SPIDER_HS_UINT32_INFO tmp_info;
+    tmp_info.info_size = spider->hs_pushed_ret_fields_num;
+    tmp_info.info = spider->hs_pushed_ret_fields;
+    if ((error_num = info_push(INFO_KIND_HS_RET_FIELDS, &tmp_info)))
+    {
+      DBUG_RETURN(error_num);
+    }
+  }
+#endif
+#endif
+  DBUG_PRINT("info",("spider bulk_access_link->spider->dbton_handler=%p",
+    dbton_handler));
+  DBUG_PRINT("info",("spider ptr bulk_access_link->spider->dbton_handler=%p",
+    &dbton_handler));
+  DBUG_RETURN(0);
+}
+#endif
+
+void ha_spider::sync_from_clone_source_base(
+  ha_spider *spider
+) {
+  uint roop_count2, dbton_id;
+  spider_db_handler *dbton_hdl, *dbton_hdl2;
+  DBUG_ENTER("ha_spider::sync_from_clone_source_base");
+  for (roop_count2 = 0; roop_count2 < share->use_dbton_count; roop_count2++)
+  {
+    dbton_id = share->use_dbton_ids[roop_count2];
+    dbton_hdl = dbton_handler[dbton_id];
+    dbton_hdl2 = spider->dbton_handler[dbton_id];
+    dbton_hdl->first_link_idx = dbton_hdl2->first_link_idx;
+    dbton_hdl->strict_group_by = dbton_hdl2->strict_group_by;
+  }
+  DBUG_VOID_RETURN;
+}
+
+void ha_spider::set_first_link_idx()
+{
+  int roop_count, all_link_idx;
+  uint roop_count2, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::set_first_link_idx");
+  for (roop_count2 = 0; roop_count2 < share->use_dbton_count; roop_count2++)
+  {
+    dbton_id = share->use_dbton_ids[roop_count2];
+    dbton_hdl = dbton_handler[dbton_id];
+    dbton_hdl->first_link_idx = -1;
+    dbton_hdl->strict_group_by = FALSE;
+  }
+  for (
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      conn_link_idx, -1, share->link_count, SPIDER_LINK_STATUS_RECOVERY);
+    roop_count < (int) share->link_count;
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      conn_link_idx, roop_count, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY)
+  ) {
+    all_link_idx = conn_link_idx[roop_count];
+    dbton_id = share->sql_dbton_ids[all_link_idx];
+    if (dbton_id < SPIDER_DBTON_SIZE)
+    {
+      dbton_hdl = dbton_handler[dbton_id];
+      if (dbton_hdl->first_link_idx == -1)
+      {
+        dbton_hdl->first_link_idx = roop_count;
+      }
+      if (share->strict_group_bys[all_link_idx])
+      {
+        dbton_hdl->strict_group_by = TRUE;
+      }
+    }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    dbton_id = share->hs_dbton_ids[all_link_idx];
+    if (dbton_id < SPIDER_DBTON_SIZE)
+    {
+      dbton_hdl = dbton_handler[dbton_id];
+      if (dbton_hdl->first_link_idx == -1)
+      {
+        dbton_hdl->first_link_idx = roop_count;
+      }
+      if (share->strict_group_bys[all_link_idx])
+      {
+        dbton_hdl->strict_group_by = TRUE;
+      }
+    }
+#endif
+  }
+  DBUG_VOID_RETURN;
+}
+
+void ha_spider::reset_first_link_idx()
+{
+  int all_link_idx;
+  uint roop_count2, dbton_id;
+  spider_db_handler *dbton_hdl;
+  int lock_mode = spider_conn_lock_mode(this);
+  DBUG_ENTER("ha_spider::reset_first_link_idx");
+  if (!lock_mode)
+  {
+    DBUG_PRINT("info",("spider use only search_link_idx"));
+    for (roop_count2 = 0; roop_count2 < share->use_dbton_count; roop_count2++)
+    {
+      dbton_id = share->use_dbton_ids[roop_count2];
+      dbton_hdl = dbton_handler[dbton_id];
+      dbton_hdl->first_link_idx = -1;
+    }
+    all_link_idx = conn_link_idx[search_link_idx];
+    dbton_id = share->sql_dbton_ids[all_link_idx];
+    if (dbton_id < SPIDER_DBTON_SIZE)
+    {
+      dbton_hdl = dbton_handler[dbton_id];
+      if (dbton_hdl->first_link_idx == -1)
+      {
+        dbton_hdl->first_link_idx = search_link_idx;
+      }
+    }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    dbton_id = share->hs_dbton_ids[all_link_idx];
+    if (dbton_id < SPIDER_DBTON_SIZE)
+    {
+      dbton_hdl = dbton_handler[dbton_id];
+      if (dbton_hdl->first_link_idx == -1)
+      {
+        dbton_hdl->first_link_idx = search_link_idx;
+      }
+    }
+#endif
+  }
+  DBUG_VOID_RETURN;
+}
+
+int ha_spider::reset_sql_sql(
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  DBUG_ENTER("ha_spider::reset_sql_sql");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    if ((error_num = dbton_handler[dbton_id]->reset_sql(sql_type)))
+    {
+      DBUG_RETURN(error_num);
+    }
+  }
+
+  if (sql_type & SPIDER_SQL_TYPE_BULK_UPDATE_SQL)
+  {
+    for (roop_count = 0; roop_count < share->link_count; roop_count++)
+    {
+      result_list.update_sqls[roop_count].length(0);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+int ha_spider::reset_hs_sql(
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  DBUG_ENTER("ha_spider::reset_hs_sql");
+  for (roop_count = 0; roop_count < share->use_hs_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_hs_dbton_ids[roop_count];
+    if ((error_num = dbton_handler[dbton_id]->reset_sql(sql_type)))
+    {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::reset_hs_keys(
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  DBUG_ENTER("ha_spider::reset_hs_keys");
+  for (roop_count = 0; roop_count < share->use_hs_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_hs_dbton_ids[roop_count];
+    if ((error_num = dbton_handler[dbton_id]->reset_keys(sql_type)))
+    {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::reset_hs_upds(
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  DBUG_ENTER("ha_spider::reset_hs_upds");
+  for (roop_count = 0; roop_count < share->use_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_dbton_ids[roop_count];
+    if ((error_num = dbton_handler[dbton_id]->reset_upds(sql_type)))
+    {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::reset_hs_strs(
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  DBUG_ENTER("ha_spider::reset_hs_strs");
+  for (roop_count = 0; roop_count < share->use_hs_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_hs_dbton_ids[roop_count];
+    if ((error_num = dbton_handler[dbton_id]->reset_strs(sql_type)))
+    {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::reset_hs_strs_pos(
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  DBUG_ENTER("ha_spider::reset_hs_strs_pos");
+  for (roop_count = 0; roop_count < share->use_hs_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_hs_dbton_ids[roop_count];
+    if ((error_num = dbton_handler[dbton_id]->reset_strs_pos(sql_type)))
+    {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::push_back_hs_upds(
+  SPIDER_HS_STRING_REF &info
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  DBUG_ENTER("ha_spider::push_back_hs_upds");
+  for (roop_count = 0; roop_count < share->use_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_dbton_ids[roop_count];
+    if ((error_num = dbton_handler[dbton_id]->push_back_upds(info)))
+    {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+#endif
+
+int ha_spider::append_tmp_table_and_sql_for_bka(
+  const key_range *start_key
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_tmp_table_and_sql_for_bka");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_tmp_table_and_sql_for_bka(start_key))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::reuse_tmp_table_and_sql_for_bka()
+{
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::reuse_tmp_table_and_sql_for_bka");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->reuse_tmp_table_and_sql_for_bka())
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::append_union_table_and_sql_for_bka(
+  const key_range *start_key
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_union_table_and_sql_for_bka");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_union_table_and_sql_for_bka(start_key))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::reuse_union_table_and_sql_for_bka()
+{
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::reuse_union_table_and_sql_for_bka");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->reuse_union_table_and_sql_for_bka())
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::append_insert_sql_part()
+{
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_insert_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_insert_part())
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::append_update_sql_part()
+{
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_update_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_update_part())
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+int ha_spider::append_increment_update_set_sql_part()
+{
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_increment_update_set_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_increment_update_set_part())
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+#endif
+#endif
+
+int ha_spider::append_update_set_sql_part()
+{
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_update_set_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_update_set_part())
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+int ha_spider::append_direct_update_set_sql_part()
+{
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_direct_update_set_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_direct_update_set_part())
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+int ha_spider::append_direct_update_set_hs_part()
+{
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_direct_update_set_hs_part");
+  for (roop_count = 0; roop_count < share->use_hs_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_hs_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_direct_update_set_part())
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+#endif
+#endif
+
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+int ha_spider::append_dup_update_pushdown_sql_part(
+  const char *alias,
+  uint alias_length
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_dup_update_pushdown_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_dup_update_pushdown_part(
+        alias, alias_length))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::append_update_columns_sql_part(
+  const char *alias,
+  uint alias_length
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_update_columns_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_update_columns_part(
+        alias, alias_length))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::check_update_columns_sql_part()
+{
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::check_update_columns_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->check_update_columns_part())
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+#endif
+
+int ha_spider::append_delete_sql_part()
+{
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_delete_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_delete_part())
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::append_select_sql_part(
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_select_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_select_part(sql_type))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::append_table_select_sql_part(
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_table_select_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_table_select_part(sql_type))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::append_key_select_sql_part(
+  ulong sql_type,
+  uint idx
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_key_select_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_key_select_part(sql_type, idx))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::append_minimum_select_sql_part(
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_minimum_select_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_minimum_select_part(sql_type))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::append_from_sql_part(
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_from_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_from_part(sql_type,
+        dbton_hdl->first_link_idx))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::append_hint_after_table_sql_part(
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_hint_after_table_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_hint_after_table_part(sql_type))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+void ha_spider::set_where_pos_sql(
+  ulong sql_type
+) {
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::set_where_pos_sql");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (dbton_hdl->first_link_idx >= 0)
+      dbton_hdl->set_where_pos(sql_type);
+  }
+  DBUG_VOID_RETURN;
+}
+
+void ha_spider::set_where_to_pos_sql(
+  ulong sql_type
+) {
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::set_where_to_pos_sql");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (dbton_hdl->first_link_idx >= 0)
+      dbton_hdl->set_where_to_pos(sql_type);
+  }
+  DBUG_VOID_RETURN;
+}
+
+int ha_spider::check_item_type_sql(
+  Item *item
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::check_item_type_sql");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->check_item_type(item))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::append_values_connector_sql_part(
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_values_connector_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num =
+        dbton_hdl->append_values_connector_part(sql_type))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::append_values_terminator_sql_part(
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_values_terminator_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num =
+        dbton_hdl->append_values_terminator_part(sql_type))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::append_union_table_connector_sql_part(
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_union_table_connector_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num =
+        dbton_hdl->append_union_table_connector_part(sql_type))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::append_union_table_terminator_sql_part(
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_union_table_terminator_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num =
+        dbton_hdl->append_union_table_terminator_part(sql_type))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::append_key_column_values_sql_part(
+  const key_range *start_key,
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_key_column_values_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num =
+        dbton_hdl->append_key_column_values_part(start_key, sql_type))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::append_key_column_values_with_name_sql_part(
+  const key_range *start_key,
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_key_column_values_with_name_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num =
+        dbton_hdl->append_key_column_values_with_name_part(
+          start_key, sql_type))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::append_key_where_sql_part(
+  const key_range *start_key,
+  const key_range *end_key,
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_key_where_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_key_where_part(start_key, end_key,
+        sql_type))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+int ha_spider::append_key_where_hs_part(
+  const key_range *start_key,
+  const key_range *end_key,
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_key_where_hs_part");
+  for (roop_count = 0; roop_count < share->use_hs_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_hs_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_key_where_part(start_key, end_key,
+        sql_type))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+#endif
+
+int ha_spider::append_match_where_sql_part(
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_match_where_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_match_where_part(sql_type))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::append_condition_sql_part(
+  const char *alias,
+  uint alias_length,
+  ulong sql_type,
+  bool test_flg
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_condition_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_condition_part(alias, alias_length,
+        sql_type, test_flg))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+int ha_spider::append_sum_select_sql_part(
+  ulong sql_type,
+  const char *alias,
+  uint alias_length
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_sum_select_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_sum_select_part(sql_type,
+        alias, alias_length))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  wide_handler->trx->direct_aggregate_count++;
+  DBUG_RETURN(0);
+}
+#endif
+
+int ha_spider::append_match_select_sql_part(
+  ulong sql_type,
+  const char *alias,
+  uint alias_length
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_match_select_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_match_select_part(sql_type,
+        alias, alias_length))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+void ha_spider::set_order_pos_sql(
+  ulong sql_type
+) {
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::set_order_pos_sql");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (dbton_hdl->first_link_idx >= 0)
+      dbton_hdl->set_order_pos(sql_type);
+  }
+  DBUG_VOID_RETURN;
+}
+
+void ha_spider::set_order_to_pos_sql(
+  ulong sql_type
+) {
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::set_order_to_pos_sql");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (dbton_hdl->first_link_idx >= 0)
+      dbton_hdl->set_order_to_pos(sql_type);
+  }
+  DBUG_VOID_RETURN;
+}
+
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+int ha_spider::append_group_by_sql_part(
+  const char *alias,
+  uint alias_length,
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_group_by_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_group_by_part(
+        alias, alias_length, sql_type))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+#endif
+
+int ha_spider::append_key_order_for_merge_with_alias_sql_part(
+  const char *alias,
+  uint alias_length,
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_key_order_for_merge_with_alias_sql_part");
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  if (result_list.direct_aggregate)
+  {
+    st_select_lex *select_lex = spider_get_select_lex(this);
+    ORDER *group = (ORDER *) select_lex->group_list.first;
+    if (!group && *(select_lex->join->sum_funcs))
+    {
+      DBUG_PRINT("info",("spider skip order by"));
+      DBUG_RETURN(0);
+    }
+  }
+#endif
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_key_order_for_merge_with_alias_part(
+        alias, alias_length, sql_type))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::append_key_order_for_direct_order_limit_with_alias_sql_part(
+  const char *alias,
+  uint alias_length,
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_key_order_for_direct_order_limit_with_alias_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num =
+        dbton_hdl->append_key_order_for_direct_order_limit_with_alias_part(
+          alias, alias_length, sql_type))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::append_key_order_with_alias_sql_part(
+  const char *alias,
+  uint alias_length,
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_key_order_with_alias_sql_part");
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  if (result_list.direct_aggregate)
+  {
+    st_select_lex *select_lex = spider_get_select_lex(this);
+    ORDER *group = (ORDER *) select_lex->group_list.first;
+    if (!group && *(select_lex->join->sum_funcs))
+    {
+      DBUG_PRINT("info",("spider skip order by"));
+      DBUG_RETURN(0);
+    }
+  }
+#endif
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_key_order_with_alias_part(
+        alias, alias_length, sql_type))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::append_limit_sql_part(
+  longlong offset,
+  longlong limit,
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_limit_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_limit_part(offset, limit, sql_type))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+int ha_spider::append_limit_hs_part(
+  longlong offset,
+  longlong limit,
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_limit_hs_part");
+  for (roop_count = 0; roop_count < share->use_hs_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_hs_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_limit_part(offset, limit, sql_type))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+#endif
+
+int ha_spider::reappend_limit_sql_part(
+  longlong offset,
+  longlong limit,
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::reappend_limit_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->reappend_limit_part(offset, limit, sql_type))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::append_insert_terminator_sql_part(
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_insert_terminator_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_insert_terminator_part(sql_type))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::append_insert_values_sql_part(
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_insert_values_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_insert_values_part(sql_type))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+int ha_spider::append_insert_values_hs_part(
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_insert_values_hs_part");
+  for (roop_count = 0; roop_count < share->use_hs_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_hs_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_insert_values_part(sql_type))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+#endif
+
+int ha_spider::append_into_sql_part(
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_into_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_into_part(sql_type))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+void ha_spider::set_insert_to_pos_sql(
+  ulong sql_type
+) {
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::set_insert_to_pos_sql");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (dbton_hdl->first_link_idx >= 0)
+      dbton_hdl->set_insert_to_pos(sql_type);
+  }
+  DBUG_VOID_RETURN;
+}
+
+bool ha_spider::is_bulk_insert_exec_period(
+  bool bulk_end
+) {
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::is_bulk_insert_exec_period");
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (sql_kinds & SPIDER_SQL_KIND_SQL)
+  {
+#endif
+    for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+    {
+      dbton_id = share->use_sql_dbton_ids[roop_count];
+      dbton_hdl = dbton_handler[dbton_id];
+      if (
+        dbton_hdl->first_link_idx >= 0 &&
+        dbton_hdl->is_bulk_insert_exec_period(bulk_end)
+      ) {
+        DBUG_RETURN(TRUE);
+      }
+    }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  }
+  if (sql_kinds & SPIDER_SQL_KIND_HS)
+  {
+    for (roop_count = 0; roop_count < share->use_hs_dbton_count; roop_count++)
+    {
+      dbton_id = share->use_hs_dbton_ids[roop_count];
+      dbton_hdl = dbton_handler[dbton_id];
+      if (
+        dbton_hdl->first_link_idx >= 0 &&
+        dbton_hdl->is_bulk_insert_exec_period(bulk_end)
+      ) {
+        DBUG_RETURN(TRUE);
+      }
+    }
+  }
+#endif
+  DBUG_RETURN(FALSE);
+}
+
+int ha_spider::append_select_lock_sql_part(
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_select_lock_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_select_lock_part(sql_type))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::append_union_all_start_sql_part(
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_union_all_start_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_union_all_start_part(sql_type))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::append_union_all_sql_part(
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_union_all_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_union_all_part(sql_type))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::append_union_all_end_sql_part(
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_union_all_end_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_union_all_end_part(sql_type))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::append_multi_range_cnt_sql_part(
+  ulong sql_type,
+  uint multi_range_cnt,
+  bool with_comma
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_multi_range_cnt_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_multi_range_cnt_part(
+        sql_type, multi_range_cnt, with_comma))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::append_multi_range_cnt_with_name_sql_part(
+  ulong sql_type,
+  uint multi_range_cnt
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_multi_range_cnt_with_name_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_multi_range_cnt_with_name_part(
+        sql_type, multi_range_cnt))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::append_delete_all_rows_sql_part(
+  ulong sql_type
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_delete_all_rows_sql_part");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_delete_all_rows_part(sql_type))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::append_update_sql(
+  const TABLE *table,
+  my_ptrdiff_t ptr_diff,
+  bool bulk
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_update");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_update(table, ptr_diff))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  if (!bulk)
+  {
+    DBUG_RETURN(0);
+  }
+
+  for (
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      conn_link_idx, -1, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY);
+    roop_count < share->link_count;
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      conn_link_idx, roop_count, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY)
+  ) {
+    dbton_id = share->sql_dbton_ids[conn_link_idx[roop_count]];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      dbton_hdl->need_copy_for_update(roop_count)
+    ) {
+      if ((error_num = dbton_hdl->append_update(table, ptr_diff, roop_count)))
+      {
+        DBUG_RETURN(error_num);
+      }
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::append_delete_sql(
+  const TABLE *table,
+  my_ptrdiff_t ptr_diff,
+  bool bulk
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::append_delete");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->append_delete(table, ptr_diff))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  if (!bulk)
+  {
+    DBUG_RETURN(0);
+  }
+
+  for (
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      conn_link_idx, -1, share->link_count, SPIDER_LINK_STATUS_RECOVERY);
+    roop_count < share->link_count;
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      conn_link_idx, roop_count, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY)
+  ) {
+    dbton_id = share->sql_dbton_ids[conn_link_idx[roop_count]];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      dbton_hdl->need_copy_for_update(roop_count)
+    ) {
+      if ((error_num = dbton_hdl->append_delete(table, ptr_diff, roop_count)))
+      {
+        DBUG_RETURN(error_num);
+      }
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+bool ha_spider::sql_is_filled_up(
+  ulong sql_type
+) {
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::sql_is_filled_up");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      dbton_hdl->sql_is_filled_up(sql_type)
+    ) {
+      DBUG_RETURN(TRUE);
+    }
+  }
+  DBUG_RETURN(FALSE);
+}
+
+bool ha_spider::sql_is_empty(
+  ulong sql_type
+) {
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::sql_is_empty");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      !dbton_hdl->sql_is_empty(sql_type)
+    ) {
+      DBUG_RETURN(FALSE);
+    }
+  }
+  DBUG_RETURN(TRUE);
+}
+
+bool ha_spider::support_multi_split_read_sql()
+{
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::support_multi_split_read_sql");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      !dbton_hdl->support_multi_split_read()
+    ) {
+      DBUG_RETURN(FALSE);
+    }
+  }
+  DBUG_RETURN(TRUE);
+}
+
+bool ha_spider::support_bulk_update_sql()
+{
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::support_bulk_update_sql");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      !dbton_hdl->support_bulk_update()
+    ) {
+      DBUG_RETURN(FALSE);
+    }
+  }
+  DBUG_RETURN(TRUE);
+}
+
+int ha_spider::bulk_tmp_table_insert()
+{
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  TABLE **tmp_table = result_list.upd_tmp_tbls;
+  DBUG_ENTER("ha_spider::bulk_tmp_table_insert");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->bulk_tmp_table_insert())
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+
+  for (roop_count = 0; roop_count < share->link_count; roop_count++)
+  {
+    if (tmp_table[roop_count])
+    {
+      dbton_id = share->sql_dbton_ids[conn_link_idx[roop_count]];
+      dbton_hdl = dbton_handler[dbton_id];
+      if (
+        dbton_hdl->first_link_idx >= 0 &&
+        (error_num = dbton_hdl->bulk_tmp_table_insert(roop_count))
+      ) {
+        DBUG_RETURN(error_num);
+      }
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::bulk_tmp_table_end_bulk_insert()
+{
+  int error_num = 0, error_num2;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  TABLE **tmp_table = result_list.upd_tmp_tbls;
+  DBUG_ENTER("ha_spider::bulk_tmp_table_end_bulk_insert");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num2 = dbton_hdl->bulk_tmp_table_end_bulk_insert())
+    ) {
+      error_num = error_num2;
+    }
+  }
+
+  for (roop_count = 0; roop_count < share->link_count; roop_count++)
+  {
+    if (tmp_table[roop_count])
+    {
+      if (
+        (error_num2 = tmp_table[roop_count]->file->ha_end_bulk_insert())
+      ) {
+        error_num = error_num2;
+      }
+    }
+  }
+  DBUG_RETURN(error_num);
+}
+
+int ha_spider::bulk_tmp_table_rnd_init()
+{
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  TABLE **tmp_table = result_list.upd_tmp_tbls;
+  DBUG_ENTER("ha_spider::bulk_tmp_table_rnd_init");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->bulk_tmp_table_rnd_init())
+    ) {
+      goto error_1;
+    }
+  }
+
+  for (roop_count = 0; roop_count < share->link_count; roop_count++)
+  {
+    if (tmp_table[roop_count])
+    {
+      tmp_table[roop_count]->file->extra(HA_EXTRA_CACHE);
+      if (
+        (error_num = tmp_table[roop_count]->file->ha_rnd_init(TRUE))
+      )
+        goto error_2;
+    }
+  }
+  DBUG_RETURN(0);
+
+error_2:
+  for (; roop_count > 0; roop_count--)
+  {
+    if (tmp_table[roop_count - 1])
+    {
+      tmp_table[roop_count - 1]->file->ha_rnd_end();
+    }
+  }
+  roop_count = share->use_sql_dbton_count;
+error_1:
+  for (; roop_count > 0; roop_count--)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count - 1];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (dbton_hdl->first_link_idx >= 0)
+      dbton_hdl->bulk_tmp_table_rnd_end();
+  }
+  DBUG_RETURN(error_num);
+}
+
+int ha_spider::bulk_tmp_table_rnd_next()
+{
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  TABLE **tmp_table = result_list.upd_tmp_tbls;
+  DBUG_ENTER("ha_spider::bulk_tmp_table_rnd_next");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->bulk_tmp_table_rnd_next())
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+
+  for (roop_count = 0; roop_count < share->link_count; roop_count++)
+  {
+    if (tmp_table[roop_count])
+    {
+      if (
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 50200
+        !(error_num = tmp_table[roop_count]->file->ha_rnd_next(
+          tmp_table[roop_count]->record[0]))
+#else
+        !(error_num = tmp_table[roop_count]->file->rnd_next(
+          tmp_table[roop_count]->record[0]))
+#endif
+      ) {
+        DBUG_RETURN(error_num);
+      }
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::bulk_tmp_table_rnd_end()
+{
+  int error_num = 0, error_num2;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  TABLE **tmp_table = result_list.upd_tmp_tbls;
+  DBUG_ENTER("ha_spider::bulk_tmp_table_rnd_end");
+  for (roop_count = share->link_count; roop_count > 0; roop_count--)
+  {
+    if (tmp_table[roop_count - 1])
+    {
+      if ((error_num2 = tmp_table[roop_count - 1]->file->ha_rnd_end()))
+      {
+        error_num = error_num2;
+      }
+    }
+  }
+
+  for (roop_count = share->use_sql_dbton_count; roop_count > 0; roop_count--)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count - 1];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num2 = dbton_hdl->bulk_tmp_table_rnd_end())
+    ) {
+      error_num = error_num2;
+    }
+  }
+  DBUG_RETURN(error_num);
+}
+
+int ha_spider::mk_bulk_tmp_table_and_bulk_start()
+{
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  TABLE **tmp_table = result_list.upd_tmp_tbls;
+  DBUG_ENTER("ha_spider::mk_bulk_tmp_table_and_bulk_start");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (dbton_hdl->first_link_idx >= 0)
+    {
+      if (dbton_hdl->bulk_tmp_table_created())
+      {
+        DBUG_RETURN(0);
+      } else {
+        break;
+      }
+    }
+  }
+
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->mk_bulk_tmp_table_and_bulk_start())
+    ) {
+      goto error_1;
+    }
+  }
+
+  for (roop_count = 0; roop_count < share->link_count; roop_count++)
+  {
+    dbton_id = share->sql_dbton_ids[conn_link_idx[roop_count]];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      dbton_hdl->need_copy_for_update(roop_count)
+    ) {
+#ifdef SPIDER_use_LEX_CSTRING_for_Field_blob_constructor
+      LEX_CSTRING field_name = {STRING_WITH_LEN("a")};
+      if (
+        !tmp_table[roop_count] &&
+        !(tmp_table[roop_count] = spider_mk_sys_tmp_table(
+          wide_handler->trx->thd, table,
+          &result_list.upd_tmp_tbl_prms[roop_count],
+          &field_name, result_list.update_sqls[roop_count].charset()))
+      )
+#else
+      if (
+        !tmp_table[roop_count] &&
+        !(tmp_table[roop_count] = spider_mk_sys_tmp_table(
+          wide_handler->trx->thd, table,
+          &result_list.upd_tmp_tbl_prms[roop_count], "a",
+          result_list.update_sqls[roop_count].charset()))
+      )
+#endif
+      {
+        error_num = HA_ERR_OUT_OF_MEM;
+        goto error_2;
+      }
+      tmp_table[roop_count]->file->extra(HA_EXTRA_WRITE_CACHE);
+      tmp_table[roop_count]->file->ha_start_bulk_insert((ha_rows) 0);
+    }
+  }
+  DBUG_RETURN(0);
+
+error_2:
+  for (; roop_count > 0; roop_count--)
+  {
+    if (tmp_table[roop_count - 1])
+    {
+      tmp_table[roop_count - 1]->file->ha_end_bulk_insert();
+      spider_rm_sys_tmp_table(wide_handler->trx->thd,
+        tmp_table[roop_count - 1],
+        &result_list.upd_tmp_tbl_prms[roop_count - 1]);
+      tmp_table[roop_count - 1] = NULL;
+    }
+  }
+  roop_count = share->use_sql_dbton_count;
+error_1:
+  for (; roop_count > 0; roop_count--)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count - 1];
+    if (dbton_hdl->first_link_idx >= 0)
+    {
+      dbton_handler[dbton_id]->bulk_tmp_table_end_bulk_insert();
+      dbton_handler[dbton_id]->rm_bulk_tmp_table();
+    }
+  }
+  DBUG_RETURN(error_num);
+}
+
+void ha_spider::rm_bulk_tmp_table()
+{
+  uint roop_count, dbton_id;
+  TABLE **tmp_table = result_list.upd_tmp_tbls;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::bulk_tmp_table_rnd_end");
+  for (roop_count = share->link_count; roop_count > 0; roop_count--)
+  {
+    if (tmp_table[roop_count - 1])
+    {
+      spider_rm_sys_tmp_table(wide_handler->trx->thd,
+        tmp_table[roop_count - 1],
+        &result_list.upd_tmp_tbl_prms[roop_count - 1]);
+      tmp_table[roop_count - 1] = NULL;
+    }
+  }
+
+  for (roop_count = share->use_sql_dbton_count; roop_count > 0; roop_count--)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count - 1];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (dbton_hdl->first_link_idx >= 0)
+      dbton_hdl->rm_bulk_tmp_table();
+  }
+  DBUG_VOID_RETURN;
+}
+
+bool ha_spider::bulk_tmp_table_created()
+{
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::bulk_tmp_table_created");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (dbton_hdl->first_link_idx >= 0)
+    {
+      if (dbton_hdl->bulk_tmp_table_created())
+      {
+        DBUG_RETURN(TRUE);
+      }
+    }
+  }
+  DBUG_RETURN(FALSE);
+}
+
+int ha_spider::print_item_type(
+  Item *item,
+  spider_string *str,
+  const char *alias,
+  uint alias_length
+) {
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::print_item_type");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = spider_db_print_item_type(item, NULL, this, str,
+        alias, alias_length, dbton_id, FALSE, NULL))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+bool ha_spider::support_use_handler_sql(
+  int use_handler
+) {
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::support_use_handler_sql");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      !dbton_hdl->support_use_handler(use_handler)
+    ) {
+      DBUG_RETURN(FALSE);
+    }
+  }
+  DBUG_RETURN(TRUE);
+}
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+bool ha_spider::support_bulk_access_hs() const
+{
+  uint roop_count;
+  DBUG_ENTER("ha_spider::support_bulk_access_hs");
+  if (!share)
+    DBUG_RETURN(FALSE);
+  for (roop_count = 0; roop_count < share->all_link_count; roop_count++)
+  {
+    if (share->hs_dbton_ids[roop_count] == SPIDER_DBTON_SIZE)
+      DBUG_RETURN(FALSE);
+  }
+  DBUG_RETURN(TRUE);
+}
+#endif
+
+int ha_spider::init_union_table_name_pos_sql()
+{
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::init_union_table_name_pos_sql");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->init_union_table_name_pos())
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::set_union_table_name_pos_sql()
+{
+  int error_num;
+  uint roop_count, dbton_id;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("ha_spider::set_union_table_name_pos_sql");
+  for (roop_count = 0; roop_count < share->use_sql_dbton_count; roop_count++)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    dbton_hdl = dbton_handler[dbton_id];
+    if (
+      dbton_hdl->first_link_idx >= 0 &&
+      (error_num = dbton_hdl->set_union_table_name_pos())
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::append_lock_tables_list()
+{
+  int error_num, roop_count;
+  DBUG_ENTER("ha_spider::append_lock_tables_list");
+  DBUG_PRINT("info",("spider lock_table_type=%u",
+    wide_handler->lock_table_type));
+
+  if ((error_num = spider_check_trx_and_get_conn(wide_handler->trx->thd, this,
+    FALSE)))
+  {
+    DBUG_RETURN(error_num);
+  }
+
+  if (wide_handler->lock_table_type == 1)
+  {
+    for (
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        conn_link_idx, -1, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY);
+      roop_count < (int) share->link_count;
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        conn_link_idx, roop_count, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY)
+    ) {
+      SPIDER_CONN *conn = conns[roop_count];
+      int appended = 0;
+      if ((error_num = dbton_handler[conn->dbton_id]->
+        append_lock_tables_list(conn, roop_count, &appended)))
+      {
+        DBUG_RETURN(error_num);
+      }
+      if (appended)
+      {
+        conn->table_lock = 2;
+      }
+    }
+  } else if (wide_handler->lock_table_type == 2)
+  {
+    for (
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        conn_link_idx, -1, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY);
+      roop_count < (int) share->link_count;
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        conn_link_idx, roop_count, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY)
+    ) {
+      if (
+        conns[roop_count] &&
+        conns[roop_count]->table_lock != 1 &&
+        spider_param_semi_table_lock(wide_handler->trx->thd,
+          share->semi_table_lock)
+      ) {
+        SPIDER_CONN *conn = conns[roop_count];
+        int appended = 0;
+        if ((error_num = dbton_handler[conn->dbton_id]->
+          append_lock_tables_list(conn, roop_count, &appended)))
+        {
+          DBUG_RETURN(error_num);
+        }
+        if (appended)
+        {
+          conn->table_lock = 3;
+        }
+      }
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int ha_spider::lock_tables()
+{
+  int error_num, roop_count;
+  DBUG_ENTER("ha_spider::lock_tables");
+  DBUG_PRINT("info",("spider lock_table_type=%u",
+    wide_handler->lock_table_type));
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if ((conn_kinds & SPIDER_CONN_KIND_MYSQL))
+  {
+#endif
+    if (!conns[search_link_idx])
+    {
+      my_message(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM,
+        ER_SPIDER_REMOTE_SERVER_GONE_AWAY_STR, MYF(0));
+      DBUG_RETURN(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM);
+    }
+    for (
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        conn_link_idx, -1, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY);
+      roop_count < (int) share->link_count;
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        conn_link_idx, roop_count, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY)
+    ) {
+      if (wide_handler->sql_command != SQLCOM_UNLOCK_TABLES)
+      {
+        DBUG_PRINT("info",("spider conns[%d]->join_trx=%u",
+          roop_count, conns[roop_count]->join_trx));
+        if (
+          (!conns[roop_count]->join_trx &&
+            (error_num = spider_internal_start_trx_for_connection(this,
+              conns[roop_count],
+              roop_count)))
+        ) {
+          if (
+            share->monitoring_kind[roop_count] &&
+            need_mons[roop_count]
+          ) {
+            error_num = spider_ping_table_mon_from_table(
+                wide_handler->trx,
+                wide_handler->trx->thd,
+                share,
+                roop_count,
+                (uint32) share->monitoring_sid[roop_count],
+                share->table_name,
+                share->table_name_length,
+                conn_link_idx[roop_count],
+                NULL,
+                0,
+                share->monitoring_kind[roop_count],
+                share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
+                TRUE
+              );
+          }
+          DBUG_RETURN(check_error_mode(error_num));
+        }
+        reset_first_link_idx();
+      }
+      if (conns[roop_count]->table_lock >= 2)
+      {
+        if (
+          conns[roop_count]->db_conn->have_lock_table_list() &&
+          (error_num = spider_db_lock_tables(this, roop_count))
+        ) {
+          if (
+            share->monitoring_kind[roop_count] &&
+            need_mons[roop_count]
+          ) {
+            error_num = spider_ping_table_mon_from_table(
+                wide_handler->trx,
+                wide_handler->trx->thd,
+                share,
+                roop_count,
+                (uint32) share->monitoring_sid[roop_count],
+                share->table_name,
+                share->table_name_length,
+                conn_link_idx[roop_count],
+                NULL,
+                0,
+                share->monitoring_kind[roop_count],
+                share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
+                TRUE
+              );
+          }
+          conns[roop_count]->table_lock = 0;
+          DBUG_RETURN(check_error_mode(error_num));
+        }
+        if (conns[roop_count]->table_lock == 2)
+          conns[roop_count]->table_lock = 1;
+      } else if (wide_handler->sql_command == SQLCOM_UNLOCK_TABLES ||
+        spider_param_internal_unlock(wide_handler->trx->thd) == 1)
+      {
+        if (conns[roop_count]->table_lock == 1)
+        {
+          conns[roop_count]->table_lock = 0;
+          if (!conns[roop_count]->trx_start)
+            conns[roop_count]->disable_reconnect = FALSE;
+          if ((error_num = spider_db_unlock_tables(this, roop_count)))
+          {
+            if (
+              share->monitoring_kind[roop_count] &&
+              need_mons[roop_count]
+            ) {
+              error_num = spider_ping_table_mon_from_table(
+                  wide_handler->trx,
+                  wide_handler->trx->thd,
+                  share,
+                  roop_count,
+                  (uint32) share->monitoring_sid[roop_count],
+                  share->table_name,
+                  share->table_name_length,
+                  conn_link_idx[roop_count],
+                  NULL,
+                  0,
+                  share->monitoring_kind[roop_count],
+                  share->monitoring_limit[roop_count],
+                  share->monitoring_flag[roop_count],
+                  TRUE
+                );
+            }
+            DBUG_RETURN(check_error_mode(error_num));
+          }
+        }
+      }
+    }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  }
+#endif
+  DBUG_RETURN(0);
+}
+
+int ha_spider::dml_init()
+{
+  int error_num, roop_count;
+  SPIDER_TRX *trx = wide_handler->trx;
+  THD *thd = trx->thd;
+  bool sync_trx_isolation = spider_param_sync_trx_isolation(thd);
+  DBUG_ENTER("ha_spider::dml_init");
+  if (wide_handler->lock_mode == -2)
+  {
+    wide_handler->lock_mode = spider_param_selupd_lock_mode(thd,
+      share->selupd_lock_mode);
+  }
+  if ((error_num = check_access_kind_for_connection(thd,
+    (wide_handler->lock_type >= TL_WRITE_ALLOW_WRITE))))
+  {
+    DBUG_RETURN(error_num);
+  }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if ((conn_kinds & SPIDER_CONN_KIND_MYSQL))
+  {
+#endif
+    if (!conns[search_link_idx])
+    {
+      my_message(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM,
+        ER_SPIDER_REMOTE_SERVER_GONE_AWAY_STR, MYF(0));
+      DBUG_RETURN(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM);
+    }
+    if (wide_handler->sql_command == SQLCOM_TRUNCATE)
+      DBUG_RETURN(0);
+    for (
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        conn_link_idx, -1, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY);
+      roop_count < (int) share->link_count;
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        conn_link_idx, roop_count, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY)
+    ) {
+      DBUG_PRINT("info",("spider conns[%d]->join_trx=%u",
+        roop_count, conns[roop_count]->join_trx));
+      if (
+        (!conns[roop_count]->join_trx &&
+          (error_num = spider_internal_start_trx_for_connection(this,
+            conns[roop_count],
+            roop_count)))
+      ) {
+        if (
+          share->monitoring_kind[roop_count] &&
+          need_mons[roop_count]
+        ) {
+          error_num = spider_ping_table_mon_from_table(
+              trx,
+              trx->thd,
+              share,
+              roop_count,
+              (uint32) share->monitoring_sid[roop_count],
+              share->table_name,
+              share->table_name_length,
+              conn_link_idx[roop_count],
+              NULL,
+              0,
+              share->monitoring_kind[roop_count],
+              share->monitoring_limit[roop_count],
+              share->monitoring_flag[roop_count],
+              TRUE
+            );
+        }
+        DBUG_RETURN(check_error_mode(error_num));
+      }
+      reset_first_link_idx();
+      if (
+        conns[roop_count]->semi_trx_isolation == -2 &&
+        conns[roop_count]->semi_trx_isolation_chk == TRUE &&
+        sync_trx_isolation &&
+        spider_param_semi_trx_isolation(trx->thd) >= 0
+      ) {
+        spider_conn_queue_semi_trx_isolation(conns[roop_count],
+          spider_param_semi_trx_isolation(trx->thd));
+      } else {
+        if (sync_trx_isolation)
+        {
+          if ((error_num = spider_check_and_set_trx_isolation(
+            conns[roop_count], &need_mons[roop_count])))
+          {
+            if (
+              share->monitoring_kind[roop_count] &&
+              need_mons[roop_count]
+            ) {
+              error_num = spider_ping_table_mon_from_table(
+                  trx,
+                  trx->thd,
+                  share,
+                  roop_count,
+                  (uint32) share->monitoring_sid[roop_count],
+                  share->table_name,
+                  share->table_name_length,
+                  conn_link_idx[roop_count],
+                  NULL,
+                  0,
+                  share->monitoring_kind[roop_count],
+                  share->monitoring_limit[roop_count],
+                  share->monitoring_flag[roop_count],
+                  TRUE
+                );
+            }
+            DBUG_RETURN(check_error_mode(error_num));
+          }
+        }
+        conns[roop_count]->semi_trx_isolation = -1;
+      }
+    }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  } else {
+    reset_first_link_idx();
+  }
+  if ((conn_kinds & SPIDER_CONN_KIND_HS_READ))
+  {
+    SPIDER_CONN *hs_conn;
+    for (
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        conn_link_idx, -1, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY);
+      roop_count < (int) share->link_count;
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        conn_link_idx, roop_count, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY)
+    ) {
+      hs_conn = hs_r_conns[roop_count];
+      if (
+        hs_conn &&
+        hs_conn->hsc_query_id != thd->query_id &&
+        hs_conn->hs_pre_age == hs_conn->hs_age
+      ) {
+        double interval = spider_param_hs_ping_interval(thd);
+        time_t tmp_time = (time_t) time((time_t*) 0);
+        DBUG_PRINT("info",
+          ("spider difftime=%f", difftime(tmp_time, hs_conn->ping_time)));
+        DBUG_PRINT("info", ("spider interval=%f", interval));
+        if (
+          hs_conn->server_lost ||
+          difftime(tmp_time, hs_conn->ping_time) >= interval
+        ) {
+          DBUG_PRINT("info", ("spider hsr[%d] need reconnect", roop_count));
+          hs_conn->hs_pre_age++;
+          hs_conn->ping_time = tmp_time;
+        }
+        hs_conn->hsc_query_id = thd->query_id;
+      }
+    }
+  }
+  if (
+#if defined(HS_HAS_SQLCOM) && defined(HANDLER_HAS_DIRECT_UPDATE_ROWS)
+    (
+#endif
+      conn_kinds & SPIDER_CONN_KIND_HS_WRITE
+#if defined(HS_HAS_SQLCOM) && defined(HANDLER_HAS_DIRECT_UPDATE_ROWS)
+    ) ||
+    /* for direct_update */
+    wide_handler->sql_command == SQLCOM_HS_UPDATE ||
+    wide_handler->sql_command == SQLCOM_HS_DELETE
+#endif
+  ) {
+    SPIDER_CONN *hs_conn;
+    for (
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        conn_link_idx, -1, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY);
+      roop_count < (int) share->link_count;
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        conn_link_idx, roop_count, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY)
+    ) {
+      hs_conn = hs_w_conns[roop_count];
+      if (
+        hs_conn &&
+        hs_conn->hsc_query_id != thd->query_id &&
+        hs_conn->hs_pre_age == hs_conn->hs_age
+      ) {
+        double interval = spider_param_hs_ping_interval(thd);
+        time_t tmp_time = (time_t) time((time_t*) 0);
+        DBUG_PRINT("info",
+          ("spider difftime=%f", difftime(tmp_time, hs_conn->ping_time)));
+        DBUG_PRINT("info", ("spider interval=%f", interval));
+        if (
+          hs_conn->server_lost ||
+          difftime(tmp_time, hs_conn->ping_time) >= interval
+        ) {
+          DBUG_PRINT("info", ("spider hsw[%d] need reconnect", roop_count));
+          hs_conn->hs_pre_age++;
+          hs_conn->ping_time = tmp_time;
+        }
+        hs_conn->hsc_query_id = thd->query_id;
+      }
+    }
+  }
+#endif
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  if (wide_handler->insert_with_update)
+  {
+    check_insert_dup_update_pushdown();
+  }
+#endif
+  dml_inited = TRUE;
+  DBUG_RETURN(0);
+}
+
+#ifdef HA_CAN_BULK_ACCESS
+int ha_spider::bulk_access_begin(
+  void *info
+) {
+  DBUG_ENTER("ha_spider::bulk_access_begin");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (bulk_access_started)
+  {
+    if (!bulk_access_link_current->next)
+    {
+      if (!(bulk_access_link_current->next = create_bulk_access_link()))
+      {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+      bulk_access_link_current->next->sequence_num =
+        bulk_access_link_current->sequence_num + 1;
+    }
+    bulk_access_link_current = bulk_access_link_current->next;
+  } else {
+    if (!bulk_access_link_first)
+    {
+      if (!(bulk_access_link_first = create_bulk_access_link()))
+      {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+      bulk_access_link_first->sequence_num = 0;
+    }
+    bulk_access_link_current = bulk_access_link_first;
+    bulk_access_started = TRUE;
+    bulk_access_executing = FALSE;
+  }
+  bulk_access_link_current->spider->
+    check_access_kind(wide_handler->trx->thd);
+  if (
+    (error_num = bulk_access_link_current->spider->
+      sync_from_clone_source(this)) ||
+    (error_num = bulk_access_link_current->spider->
+      check_access_kind_for_connection(wide_handler->trx->thd,
+        (lock_type >= TL_WRITE_ALLOW_WRITE)))
+  ) {
+    DBUG_RETURN(error_num);
+  }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  memset(
+    bulk_access_link_current->spider->result_list.hs_r_bulk_open_index, 0,
+    share->link_bitmap_size);
+  memset(
+    bulk_access_link_current->spider->result_list.hs_w_bulk_open_index, 0,
+    share->link_bitmap_size);
+#endif
+  bulk_access_link_current->spider->bulk_access_executing = FALSE;
+  bulk_access_link_current->spider->bulk_access_pre_called = FALSE;
+  bulk_access_link_current->used = TRUE;
+  bulk_access_link_current->called = FALSE;
+  *((void **) info) = bulk_access_link_current;
+  DBUG_RETURN(0);
+}
+
+int ha_spider::bulk_access_current(
+  void *info
+) {
+  DBUG_ENTER("ha_spider::bulk_access_current");
+  DBUG_PRINT("info",("spider this=%p", this));
+  bulk_access_executing = TRUE;
+  bulk_access_link_exec_tgt = (SPIDER_BULK_ACCESS_LINK *) info;
+  if (bulk_access_link_exec_tgt->spider->pt_clone_source_handler != this)
+  {
+    DBUG_PRINT("info",("spider this=%p", this));
+    DBUG_PRINT("info",("spider pt_clone_source_handler=%p",
+      bulk_access_link_exec_tgt->spider->pt_clone_source_handler));
+    /* partitioned */
+    uint sequence_num = bulk_access_link_exec_tgt->sequence_num;
+    for (
+      bulk_access_link_exec_tgt = bulk_access_link_first;
+      bulk_access_link_exec_tgt;
+      bulk_access_link_exec_tgt = bulk_access_link_exec_tgt->next
+    ) {
+      if (bulk_access_link_exec_tgt->sequence_num >= sequence_num)
+      {
+        DBUG_ASSERT(
+          bulk_access_link_exec_tgt->sequence_num == sequence_num);
+        break;
+      }
+    }
+  }
+  bulk_access_link_exec_tgt->spider->bulk_access_executing = TRUE;
+  DBUG_RETURN(0);
+}
+
+void ha_spider::bulk_access_end()
+{
+  DBUG_ENTER("ha_spider::bulk_access_end");
+  DBUG_PRINT("info",("spider this=%p", this));
+  bulk_access_started = FALSE;
+  DBUG_VOID_RETURN;
+}
+#endif
diff --git a/storage/spider/ha_spider.h b/storage/spider/ha_spider.h
new file mode 100644
index 00000000..5bc58397
--- /dev/null
+++ b/storage/spider/ha_spider.h
@@ -0,0 +1,1254 @@
+/* Copyright (C) 2008-2019 Kentoku Shiba
+   Copyright (C) 2019 MariaDB corp
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+#ifdef USE_PRAGMA_INTERFACE
+#pragma interface
+#endif
+
+#define SPIDER_CONNECT_INFO_MAX_LEN 64
+#define SPIDER_CONNECT_INFO_PATH_MAX_LEN FN_REFLEN
+#define SPIDER_LONGLONG_LEN 20
+#define SPIDER_MAX_KEY_LENGTH 16384
+
+#define SPIDER_SET_CONNS_PARAM(param_name, param_val, conns, link_statuses, conn_link_idx, link_count, link_status) \
+  for ( \
+    roop_count = spider_conn_link_idx_next(link_statuses, \
+      conn_link_idx, -1, link_count, link_status); \
+    roop_count < link_count; \
+    roop_count = spider_conn_link_idx_next(link_statuses, \
+      conn_link_idx, roop_count, link_count, link_status) \
+  ) { \
+    if (conns[roop_count]) \
+      conns[roop_count]->param_name = param_val; \
+  }
+
+class ha_spider;
+struct st_spider_ft_info
+{
+  struct _ft_vft *please;
+  st_spider_ft_info *next;
+  ha_spider *file;
+  uint target;
+  bool used_in_where;
+  float score;
+  uint flags;
+  uint inx;
+  String *key;
+};
+
+class ha_spider final : public handler
+{
+public:
+  SPIDER_SHARE       *share;
+  ulonglong          spider_thread_id;
+  ulonglong          trx_conn_adjustment;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  ulonglong          trx_hs_r_conn_adjustment;
+  ulonglong          trx_hs_w_conn_adjustment;
+#endif
+  uint               mem_calc_id;
+  const char         *mem_calc_func_name;
+  const char         *mem_calc_file_name;
+  ulong              mem_calc_line_no;
+  uint               sql_kinds;
+  uint               *sql_kind;
+  ulonglong          *connection_ids;
+  uint               conn_kinds;
+  uint               *conn_kind;
+  char               *conn_keys_first_ptr;
+  char               **conn_keys;
+  SPIDER_CONN        **conns;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  char               **hs_r_conn_keys;
+  SPIDER_CONN        **hs_r_conns;
+  ulonglong          *hs_r_conn_ages;
+  char               **hs_w_conn_keys;
+  SPIDER_CONN        **hs_w_conns;
+  ulonglong          *hs_w_conn_ages;
+#endif
+  /* for active-standby mode */
+  uint               *conn_link_idx;
+  uchar              *conn_can_fo;
+  void               **quick_targets;
+  int                *need_mons;
+  query_id_t         search_link_query_id;
+  int                search_link_idx;
+  int                result_link_idx;
+  SPIDER_RESULT_LIST result_list;
+  spider_string      *blob_buff;
+  SPIDER_POSITION    *pushed_pos;
+  SPIDER_POSITION    pushed_pos_buf;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  bool               pt_handler_share_owner = FALSE;
+  SPIDER_PARTITION_HANDLER_SHARE *partition_handler_share;
+#endif
+  bool                wide_handler_owner = FALSE;
+  SPIDER_WIDE_HANDLER *wide_handler = NULL;
+
+#ifdef HA_CAN_BULK_ACCESS
+  int                pre_direct_init_result;
+  bool               is_bulk_access_clone;
+  bool               synced_from_clone_source;
+  bool               bulk_access_started;
+  bool               bulk_access_executing;
+  bool               bulk_access_pre_called;
+  SPIDER_BULK_ACCESS_LINK *bulk_access_link_first;
+  SPIDER_BULK_ACCESS_LINK *bulk_access_link_current;
+  SPIDER_BULK_ACCESS_LINK *bulk_access_link_exec_tgt;
+/*
+  bool               init_ha_mem_root;
+  MEM_ROOT           ha_mem_root;
+*/
+#endif
+  bool               is_clone;
+  ha_spider          *pt_clone_source_handler;
+  ha_spider          *pt_clone_last_searcher;
+  bool               use_index_merge;
+
+  bool               init_index_handler;
+  bool               init_rnd_handler;
+
+  bool               da_status;
+  bool               use_spatial_index;
+
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+  uint                  idx_for_direct_join;
+  bool                  use_fields;
+  spider_fields         *fields;
+  SPIDER_LINK_IDX_CHAIN *link_idx_chain;
+  SPIDER_LINK_IDX_CHAIN *result_link_idx_chain;
+#endif
+
+  /* for mrr */
+  bool               mrr_with_cnt;
+  uint               multi_range_cnt;
+  uint               multi_range_hit_point;
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+  int                multi_range_num;
+  bool               have_second_range;
+  KEY_MULTI_RANGE    mrr_second_range;
+  spider_string      *mrr_key_buff;
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100000
+  range_id_t         *multi_range_keys;
+#else
+  char               **multi_range_keys;
+#endif
+#else
+  KEY_MULTI_RANGE    *multi_range_ranges;
+#endif
+
+  char               *append_tblnm_alias;
+  uint               append_tblnm_alias_length;
+
+  ha_spider          *next;
+
+  bool               dml_inited;
+  bool               rnd_scan_and_first;
+  bool               use_pre_call;
+  bool               use_pre_action;
+  bool               pre_bitmap_checked;
+  bool               bulk_insert;
+#ifdef HANDLER_HAS_NEED_INFO_FOR_AUTO_INC
+  bool               info_auto_called;
+#endif
+#ifdef HANDLER_HAS_CAN_USE_FOR_AUTO_INC_INIT
+  bool               auto_inc_temporary;
+#endif
+  int                bulk_size;
+  int                direct_dup_insert;
+  int                store_error_num;
+  uint               dup_key_idx;
+  int                select_column_mode;
+  bool               pk_update;
+  bool               force_auto_increment;
+  int                bka_mode;
+  int                error_mode;
+  ulonglong          store_last_insert_id;
+
+  ulonglong          *db_request_id;
+  uchar              *db_request_phase;
+  uchar              *m_handler_opened;
+  uint               *m_handler_id;
+  char               **m_handler_cid;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  uchar              *r_handler_opened;
+  uint               *r_handler_id;
+  uint               *r_handler_index;
+  uchar              *w_handler_opened;
+  uint               *w_handler_id;
+  uint               *w_handler_index;
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  uchar              *do_hs_direct_update;
+  uint32             **hs_r_ret_fields;
+  uint32             **hs_w_ret_fields;
+  size_t             *hs_r_ret_fields_num;
+  size_t             *hs_w_ret_fields_num;
+  uchar              *tmp_column_bitmap;
+#endif
+#endif
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  bool               do_direct_update;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  bool               maybe_do_hs_direct_update;
+#endif
+  uint               direct_update_kinds;
+#endif
+  spider_index_rnd_init prev_index_rnd_init;
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  SPIDER_ITEM_HLD    *direct_aggregate_item_first;
+  SPIDER_ITEM_HLD    *direct_aggregate_item_current;
+#endif
+  ha_rows            table_rows;
+#ifdef HA_HAS_CHECKSUM_EXTENDED
+  ha_checksum        checksum_val;
+  bool               checksum_null;
+  uint               action_flags;
+#endif
+
+  /* for fulltext search */
+  bool               ft_init_and_first;
+  uint               ft_init_idx;
+  uint               ft_count;
+  bool               ft_init_without_index_init;
+  st_spider_ft_info  *ft_first;
+  st_spider_ft_info  *ft_current;
+
+  /* for dbton */
+  spider_db_handler  **dbton_handler;
+
+  /* for direct limit offset */
+  longlong direct_select_offset;
+  longlong direct_current_offset;
+  longlong direct_select_limit;
+
+  ha_spider();
+  ha_spider(
+    handlerton *hton,
+    TABLE_SHARE *table_arg
+  );
+  virtual ~ha_spider();
+  handler *clone(
+    const char *name,
+    MEM_ROOT *mem_root
+  );
+  const char **bas_ext() const;
+  int open(
+    const char* name,
+    int mode,
+    uint test_if_locked
+  );
+  int close();
+  int check_access_kind_for_connection(
+    THD *thd,
+    bool write_request
+  );
+  void check_access_kind(
+    THD *thd
+  );
+#ifdef HA_CAN_BULK_ACCESS
+  int additional_lock(
+    THD *thd,
+    enum thr_lock_type lock_type
+  );
+#endif
+  THR_LOCK_DATA **store_lock(
+    THD *thd,
+    THR_LOCK_DATA **to,
+    enum thr_lock_type lock_type
+  );
+  int external_lock(
+    THD *thd,
+    int lock_type
+  );
+  int start_stmt(
+    THD *thd,
+    thr_lock_type lock_type
+  );
+  int reset();
+  int extra(
+    enum ha_extra_function operation
+  );
+  int index_init(
+    uint idx,
+    bool sorted
+  );
+#ifdef HA_CAN_BULK_ACCESS
+  int pre_index_init(
+    uint idx,
+    bool sorted
+  );
+#endif
+  int index_end();
+#ifdef HA_CAN_BULK_ACCESS
+  int pre_index_end();
+#endif
+  int index_read_map(
+    uchar *buf,
+    const uchar *key,
+    key_part_map keypart_map,
+    enum ha_rkey_function find_flag
+  );
+  int index_read_last_map(
+    uchar *buf,
+    const uchar *key,
+    key_part_map keypart_map
+  );
+  int index_next(
+    uchar *buf
+  );
+  int index_prev(
+    uchar *buf
+  );
+  int index_first(
+    uchar *buf
+  );
+  int index_last(
+    uchar *buf
+  );
+  int index_next_same(
+    uchar *buf,
+    const uchar *key,
+    uint keylen
+  );
+  int read_range_first(
+    const key_range *start_key,
+    const key_range *end_key,
+    bool eq_range,
+    bool sorted
+  );
+  int read_range_next();
+  void reset_no_where_cond();
+  bool check_no_where_cond();
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100000
+  ha_rows multi_range_read_info_const(
+    uint keyno,
+    RANGE_SEQ_IF *seq,
+    void *seq_init_param,
+    uint n_ranges,
+    uint *bufsz,
+    uint *flags,
+    Cost_estimate *cost
+  );
+  ha_rows multi_range_read_info(
+    uint keyno,
+    uint n_ranges,
+    uint keys,
+    uint key_parts,
+    uint *bufsz,
+    uint *flags,
+    Cost_estimate *cost
+  );
+#else
+  ha_rows multi_range_read_info_const(
+    uint keyno,
+    RANGE_SEQ_IF *seq,
+    void *seq_init_param,
+    uint n_ranges,
+    uint *bufsz,
+    uint *flags,
+    COST_VECT *cost
+  );
+  ha_rows multi_range_read_info(
+    uint keyno,
+    uint n_ranges,
+    uint keys,
+    uint key_parts,
+    uint *bufsz,
+    uint *flags,
+    COST_VECT *cost
+  );
+#endif
+  int multi_range_read_init(
+    RANGE_SEQ_IF *seq,
+    void *seq_init_param,
+    uint n_ranges,
+    uint mode,
+    HANDLER_BUFFER *buf
+  );
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100000
+  int multi_range_read_next(
+    range_id_t *range_info
+  );
+  int multi_range_read_next_first(
+    range_id_t *range_info
+  );
+  int multi_range_read_next_next(
+    range_id_t *range_info
+  );
+#else
+  int multi_range_read_next(
+    char **range_info
+  );
+  int multi_range_read_next_first(
+    char **range_info
+  );
+  int multi_range_read_next_next(
+    char **range_info
+  );
+#endif
+#else
+  int read_multi_range_first(
+    KEY_MULTI_RANGE **found_range_p,
+    KEY_MULTI_RANGE *ranges,
+    uint range_count,
+    bool sorted,
+    HANDLER_BUFFER *buffer
+  );
+  int read_multi_range_next(
+    KEY_MULTI_RANGE **found_range_p
+  );
+#endif
+  int rnd_init(
+    bool scan
+  );
+#ifdef HA_CAN_BULK_ACCESS
+  int pre_rnd_init(
+    bool scan
+  );
+#endif
+  int rnd_end();
+#ifdef HA_CAN_BULK_ACCESS
+  int pre_rnd_end();
+#endif
+  int rnd_next(
+    uchar *buf
+  );
+  void position(
+    const uchar *record
+  );
+  int rnd_pos(
+    uchar *buf,
+    uchar *pos
+  );
+  int cmp_ref(
+    const uchar *ref1,
+    const uchar *ref2
+  );
+  int ft_init();
+  void ft_end();
+  FT_INFO *ft_init_ext(
+    uint flags,
+    uint inx,
+    String *key
+  );
+  int ft_read(
+    uchar *buf
+  );
+  int pre_index_read_map(
+    const uchar *key,
+    key_part_map keypart_map,
+    enum ha_rkey_function find_flag,
+    bool use_parallel
+  );
+  int pre_index_first(bool use_parallel);
+  int pre_index_last(bool use_parallel);
+  int pre_index_read_last_map(
+    const uchar *key,
+    key_part_map keypart_map,
+    bool use_parallel
+  );
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+  int pre_multi_range_read_next(
+    bool use_parallel
+  );
+#else
+  int pre_read_multi_range_first(
+    KEY_MULTI_RANGE **found_range_p,
+    KEY_MULTI_RANGE *ranges,
+    uint range_count,
+    bool sorted,
+    HANDLER_BUFFER *buffer,
+    bool use_parallel
+  );
+#endif
+  int pre_read_range_first(
+    const key_range *start_key,
+    const key_range *end_key,
+    bool eq_range,
+    bool sorted,
+    bool use_parallel
+  );
+  int pre_ft_read(bool use_parallel);
+  int pre_rnd_next(bool use_parallel);
+  int info(
+    uint flag
+  );
+  ha_rows records_in_range(
+    uint inx,
+    const key_range *start_key,
+    const key_range *end_key,
+    page_range *pages
+  );
+  int check_crd();
+  int pre_records();
+  ha_rows records();
+#ifdef HA_HAS_CHECKSUM_EXTENDED
+  int pre_calculate_checksum();
+  int calculate_checksum();
+#endif
+  const char *table_type() const;
+  ulonglong table_flags() const;
+  ulong table_flags_for_partition();
+  const char *index_type(
+    uint key_number
+  );
+  ulong index_flags(
+    uint idx,
+    uint part,
+    bool all_parts
+  ) const;
+  uint max_supported_record_length() const;
+  uint max_supported_keys() const;
+  uint max_supported_key_parts() const;
+  uint max_supported_key_length() const;
+  uint max_supported_key_part_length() const;
+  uint8 table_cache_type();
+#ifdef HANDLER_HAS_NEED_INFO_FOR_AUTO_INC
+  bool need_info_for_auto_inc();
+#endif
+#ifdef HANDLER_HAS_CAN_USE_FOR_AUTO_INC_INIT
+  bool can_use_for_auto_inc_init();
+#endif
+  int update_auto_increment();
+  void get_auto_increment(
+    ulonglong offset,
+    ulonglong increment,
+    ulonglong nb_desired_values,
+    ulonglong *first_value,
+    ulonglong *nb_reserved_values
+  );
+  int reset_auto_increment(
+    ulonglong value
+  );
+  void release_auto_increment();
+#ifdef SPIDER_HANDLER_START_BULK_INSERT_HAS_FLAGS
+  void start_bulk_insert(
+    ha_rows rows,
+    uint flags
+  );
+#else
+  void start_bulk_insert(
+    ha_rows rows
+  );
+#endif
+  int end_bulk_insert();
+  int write_row(
+    const uchar *buf
+  );
+#ifdef HA_CAN_BULK_ACCESS
+  int pre_write_row(
+    uchar *buf
+  );
+#endif
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  void direct_update_init(
+    THD *thd,
+    bool hs_request
+  );
+#endif
+  bool start_bulk_update();
+  int exec_bulk_update(
+    ha_rows *dup_key_found
+  );
+  int end_bulk_update();
+#ifdef SPIDER_UPDATE_ROW_HAS_CONST_NEW_DATA
+  int bulk_update_row(
+    const uchar *old_data,
+    const uchar *new_data,
+    ha_rows *dup_key_found
+  );
+  int update_row(
+    const uchar *old_data,
+    const uchar *new_data
+  );
+#else
+  int bulk_update_row(
+    const uchar *old_data,
+    uchar *new_data,
+    ha_rows *dup_key_found
+  );
+  int update_row(
+    const uchar *old_data,
+    uchar *new_data
+  );
+#endif
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  bool check_direct_update_sql_part(
+    st_select_lex *select_lex,
+    longlong select_limit,
+    longlong offset_limit
+  );
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS_WITH_HS
+#ifdef SPIDER_MDEV_16246
+  inline int direct_update_rows_init(
+    List<Item> *update_fields
+  ) {
+    return direct_update_rows_init(update_fields, 2, NULL, 0, FALSE, NULL);
+  }
+  int direct_update_rows_init(
+    List<Item> *update_fields,
+    uint mode,
+    KEY_MULTI_RANGE *ranges,
+    uint range_count,
+    bool sorted,
+    uchar *new_data
+  );
+#else
+  inline int direct_update_rows_init()
+  {
+    return direct_update_rows_init(2, NULL, 0, FALSE, NULL);
+  }
+  int direct_update_rows_init(
+    uint mode,
+    KEY_MULTI_RANGE *ranges,
+    uint range_count,
+    bool sorted,
+    uchar *new_data
+  );
+#endif
+#else
+#ifdef SPIDER_MDEV_16246
+  int direct_update_rows_init(
+    List<Item> *update_fields
+  );
+#else
+  int direct_update_rows_init();
+#endif
+#endif
+#ifdef HA_CAN_BULK_ACCESS
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS_WITH_HS
+#ifdef SPIDER_MDEV_16246
+  inline int pre_direct_update_rows_init(
+    List<Item> *update_fields
+  ) {
+    return pre_direct_update_rows_init(update_fields, 2, NULL, 0, FALSE, NULL);
+  }
+  int pre_direct_update_rows_init(
+    List<Item> *update_fields,
+    uint mode,
+    KEY_MULTI_RANGE *ranges,
+    uint range_count,
+    bool sorted,
+    uchar *new_data
+  );
+#else
+  inline int pre_direct_update_rows_init()
+  {
+    return pre_direct_update_rows_init(2, NULL, 0, FALSE, NULL);
+  }
+  int pre_direct_update_rows_init(
+    uint mode,
+    KEY_MULTI_RANGE *ranges,
+    uint range_count,
+    bool sorted,
+    uchar *new_data
+  );
+#endif
+#else
+#ifdef SPIDER_MDEV_16246
+  int pre_direct_update_rows_init(
+    List<Item> *update_fields
+  );
+#else
+  int pre_direct_update_rows_init();
+#endif
+#endif
+#endif
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS_WITH_HS
+  inline int direct_update_rows(ha_rows *update_rows, ha_rows *found_rows)
+  {
+    return direct_update_rows(NULL, 0, FALSE, NULL, update_rows, found_rows);
+  }
+  int direct_update_rows(
+    KEY_MULTI_RANGE *ranges,
+    uint range_count,
+    bool sorted,
+    uchar *new_data,
+    ha_rows *update_rows,
+    ha_rows *found_row
+  );
+#else
+  int direct_update_rows(
+    ha_rows *update_rows,
+    ha_rows *found_row
+  );
+#endif
+#ifdef HA_CAN_BULK_ACCESS
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS_WITH_HS
+  inline int pre_direct_update_rows()
+  {
+    ha_rows update_rows;
+    ha_rows found_rows;
+
+    return pre_direct_update_rows(NULL, 0, FALSE, NULL, &update_rows,
+      &found_rows);
+  }
+  int pre_direct_update_rows(
+    KEY_MULTI_RANGE *ranges,
+    uint range_count,
+    bool sorted,
+    uchar *new_data,
+    ha_rows *update_rows,
+    ha_rows *found_row
+  );
+#else
+  int pre_direct_update_rows();
+#endif
+#endif
+#endif
+  bool start_bulk_delete();
+  int end_bulk_delete();
+  int delete_row(
+    const uchar *buf
+  );
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  bool check_direct_delete_sql_part(
+    st_select_lex *select_lex,
+    longlong select_limit,
+    longlong offset_limit
+  );
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS_WITH_HS
+  inline int direct_delete_rows_init()
+  {
+    return direct_delete_rows_init(2, NULL, 0, FALSE);
+  }
+  int direct_delete_rows_init(
+    uint mode,
+    KEY_MULTI_RANGE *ranges,
+    uint range_count,
+    bool sorted
+  );
+#else
+  int direct_delete_rows_init();
+#endif
+#ifdef HA_CAN_BULK_ACCESS
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS_WITH_HS
+  inline int pre_direct_delete_rows_init()
+  {
+    return pre_direct_delete_rows_init(2, NULL, 0, FALSE);
+  }
+  int pre_direct_delete_rows_init(
+    uint mode,
+    KEY_MULTI_RANGE *ranges,
+    uint range_count,
+    bool sorted
+  );
+#else
+  int pre_direct_delete_rows_init();
+#endif
+#endif
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS_WITH_HS
+  inline int direct_delete_rows(ha_rows *delete_rows)
+  {
+    return direct_delete_rows(NULL, 0, FALSE, delete_rows);
+  }
+  int direct_delete_rows(
+    KEY_MULTI_RANGE *ranges,
+    uint range_count,
+    bool sorted,
+    ha_rows *delete_rows
+  );
+#else
+  int direct_delete_rows(
+    ha_rows *delete_rows
+  );
+#endif
+#ifdef HA_CAN_BULK_ACCESS
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS_WITH_HS
+  inline int pre_direct_delete_rows()
+  {
+    ha_rows delete_rows;
+
+    return pre_direct_delete_rows(NULL, 0, FALSE, &delete_rows);
+  }
+  int pre_direct_delete_rows(
+    KEY_MULTI_RANGE *ranges,
+    uint range_count,
+    bool sorted,
+    ha_rows *delete_rows
+  );
+#else
+  int pre_direct_delete_rows();
+#endif
+#endif
+#endif
+  int delete_all_rows();
+  int truncate();
+  double scan_time();
+  double read_time(
+    uint index,
+    uint ranges,
+    ha_rows rows
+  );
+#ifdef HA_CAN_BULK_ACCESS
+  void bulk_req_exec();
+#endif
+  const key_map *keys_to_use_for_scanning();
+  ha_rows estimate_rows_upper_bound();
+  void print_error(
+    int error,
+    myf errflag
+  );
+  bool get_error_message(
+    int error,
+    String *buf
+  );
+  int create(
+    const char *name,
+    TABLE *form,
+    HA_CREATE_INFO *info
+  );
+  void update_create_info(
+    HA_CREATE_INFO* create_info
+  );
+  int rename_table(
+    const char *from,
+    const char *to
+  );
+  int delete_table(
+    const char *name
+  );
+  bool is_crashed() const;
+#ifdef SPIDER_HANDLER_AUTO_REPAIR_HAS_ERROR
+  bool auto_repair(int error) const;
+#else
+  bool auto_repair() const;
+#endif
+  int disable_indexes(
+    uint mode
+  );
+  int enable_indexes(
+    uint mode
+  );
+  int check(
+    THD* thd,
+    HA_CHECK_OPT* check_opt
+  );
+  int repair(
+    THD* thd,
+    HA_CHECK_OPT* check_opt
+  );
+  bool check_and_repair(
+    THD *thd
+  );
+  int analyze(
+    THD* thd,
+    HA_CHECK_OPT* check_opt
+  );
+  int optimize(
+    THD* thd,
+    HA_CHECK_OPT* check_opt
+  );
+  bool is_fatal_error(
+    int error_num,
+    uint flags
+  );
+  Field *field_exchange(
+    Field *field
+  );
+  const COND *cond_push(
+    const COND* cond
+  );
+  void cond_pop();
+  int info_push(
+    uint info_type,
+    void *info
+  );
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  void return_record_by_parent();
+#endif
+  TABLE *get_table();
+  void set_ft_discard_bitmap();
+  void set_searched_bitmap();
+  void set_clone_searched_bitmap();
+  void set_searched_bitmap_from_item_list();
+  void set_select_column_mode();
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  void check_select_column(bool rnd);
+#endif
+  bool check_and_start_bulk_update(
+    spider_bulk_upd_start bulk_upd_start
+  );
+  int check_and_end_bulk_update(
+    spider_bulk_upd_start bulk_upd_start
+  );
+  uint check_partitioned();
+  void check_direct_order_limit();
+  void check_distinct_key_query();
+  bool is_sole_projection_field(
+    uint16 field_index
+  );
+  int check_ha_range_eof();
+  int drop_tmp_tables();
+  bool handler_opened(
+    int link_idx,
+    uint tgt_conn_kind
+  );
+  void set_handler_opened(
+    int link_idx
+  );
+  void clear_handler_opened(
+    int link_idx,
+    uint tgt_conn_kind
+  );
+  int close_opened_handler(
+    int link_idx,
+    bool release_conn
+  );
+  int index_handler_init();
+  int rnd_handler_init();
+  void set_error_mode();
+  void backup_error_status();
+  int check_error_mode(
+    int error_num
+  );
+  int check_error_mode_eof(
+    int error_num
+  );
+  int index_read_map_internal(
+    uchar *buf,
+    const uchar *key,
+    key_part_map keypart_map,
+    enum ha_rkey_function find_flag
+  );
+  int index_read_last_map_internal(
+    uchar *buf,
+    const uchar *key,
+    key_part_map keypart_map
+  );
+  int index_first_internal(uchar *buf);
+  int index_last_internal(uchar *buf);
+  int read_range_first_internal(
+    uchar *buf,
+    const key_range *start_key,
+    const key_range *end_key,
+    bool eq_range,
+    bool sorted
+  );
+#ifdef HA_MRR_USE_DEFAULT_IMPL
+#else
+  int read_multi_range_first_internal(
+    uchar *buf,
+    KEY_MULTI_RANGE **found_range_p,
+    KEY_MULTI_RANGE *ranges,
+    uint range_count,
+    bool sorted,
+    HANDLER_BUFFER *buffer
+  );
+#endif
+  int ft_read_internal(uchar *buf);
+  int rnd_next_internal(uchar *buf);
+  void check_pre_call(
+    bool use_parallel
+  );
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  void check_insert_dup_update_pushdown();
+#endif
+#ifdef HA_CAN_BULK_ACCESS
+  SPIDER_BULK_ACCESS_LINK *create_bulk_access_link();
+  void delete_bulk_access_link(
+    SPIDER_BULK_ACCESS_LINK *bulk_access_link
+  );
+  int sync_from_clone_source(
+    ha_spider *spider
+  );
+#endif
+  void sync_from_clone_source_base(
+    ha_spider *spider
+  );
+  void set_first_link_idx();
+  void reset_first_link_idx();
+  int reset_sql_sql(
+    ulong sql_type
+  );
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  int reset_hs_sql(
+    ulong sql_type
+  );
+  int reset_hs_keys(
+    ulong sql_type
+  );
+  int reset_hs_upds(
+    ulong sql_type
+  );
+  int reset_hs_strs(
+    ulong sql_type
+  );
+  int reset_hs_strs_pos(
+    ulong sql_type
+  );
+  int push_back_hs_upds(
+    SPIDER_HS_STRING_REF &info
+  );
+#endif
+  int append_tmp_table_and_sql_for_bka(
+    const key_range *start_key
+  );
+  int reuse_tmp_table_and_sql_for_bka();
+  int append_union_table_and_sql_for_bka(
+    const key_range *start_key
+  );
+  int reuse_union_table_and_sql_for_bka();
+  int append_insert_sql_part();
+  int append_update_sql_part();
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  int append_increment_update_set_sql_part();
+#endif
+#endif
+  int append_update_set_sql_part();
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  int append_direct_update_set_sql_part();
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  int append_direct_update_set_hs_part();
+#endif
+#endif
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  int append_dup_update_pushdown_sql_part(
+    const char *alias,
+    uint alias_length
+  );
+  int append_update_columns_sql_part(
+    const char *alias,
+    uint alias_length
+  );
+  int check_update_columns_sql_part();
+#endif
+  int append_delete_sql_part();
+  int append_select_sql_part(
+    ulong sql_type
+  );
+  int append_table_select_sql_part(
+    ulong sql_type
+  );
+  int append_key_select_sql_part(
+    ulong sql_type,
+    uint idx
+  );
+  int append_minimum_select_sql_part(
+    ulong sql_type
+  );
+  int append_from_sql_part(
+    ulong sql_type
+  );
+  int append_hint_after_table_sql_part(
+    ulong sql_type
+  );
+  void set_where_pos_sql(
+    ulong sql_type
+  );
+  void set_where_to_pos_sql(
+    ulong sql_type
+  );
+  int check_item_type_sql(
+    Item *item
+  );
+  int append_values_connector_sql_part(
+    ulong sql_type
+  );
+  int append_values_terminator_sql_part(
+    ulong sql_type
+  );
+  int append_union_table_connector_sql_part(
+    ulong sql_type
+  );
+  int append_union_table_terminator_sql_part(
+    ulong sql_type
+  );
+  int append_key_column_values_sql_part(
+    const key_range *start_key,
+    ulong sql_type
+  );
+  int append_key_column_values_with_name_sql_part(
+    const key_range *start_key,
+    ulong sql_type
+  );
+  int append_key_where_sql_part(
+    const key_range *start_key,
+    const key_range *end_key,
+    ulong sql_type
+  );
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  int append_key_where_hs_part(
+    const key_range *start_key,
+    const key_range *end_key,
+    ulong sql_type
+  );
+#endif
+  int append_match_where_sql_part(
+    ulong sql_type
+  );
+  int append_condition_sql_part(
+    const char *alias,
+    uint alias_length,
+    ulong sql_type,
+    bool test_flg
+  );
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  int append_sum_select_sql_part(
+    ulong sql_type,
+    const char *alias,
+    uint alias_length
+  );
+#endif
+  int append_match_select_sql_part(
+    ulong sql_type,
+    const char *alias,
+    uint alias_length
+  );
+  void set_order_pos_sql(
+    ulong sql_type
+  );
+  void set_order_to_pos_sql(
+    ulong sql_type
+  );
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  int append_group_by_sql_part(
+    const char *alias,
+    uint alias_length,
+    ulong sql_type
+  );
+#endif
+  int append_key_order_for_merge_with_alias_sql_part(
+    const char *alias,
+    uint alias_length,
+    ulong sql_type
+  );
+  int append_key_order_for_direct_order_limit_with_alias_sql_part(
+    const char *alias,
+    uint alias_length,
+    ulong sql_type
+  );
+  int append_key_order_with_alias_sql_part(
+    const char *alias,
+    uint alias_length,
+    ulong sql_type
+  );
+  int append_limit_sql_part(
+    longlong offset,
+    longlong limit,
+    ulong sql_type
+  );
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  int append_limit_hs_part(
+    longlong offset,
+    longlong limit,
+    ulong sql_type
+  );
+#endif
+  int reappend_limit_sql_part(
+    longlong offset,
+    longlong limit,
+    ulong sql_type
+  );
+  int append_insert_terminator_sql_part(
+    ulong sql_type
+  );
+  int append_insert_values_sql_part(
+    ulong sql_type
+  );
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  int append_insert_values_hs_part(
+    ulong sql_type
+  );
+#endif
+  int append_into_sql_part(
+    ulong sql_type
+  );
+  void set_insert_to_pos_sql(
+    ulong sql_type
+  );
+  bool is_bulk_insert_exec_period(
+    bool bulk_end
+  );
+  int append_select_lock_sql_part(
+    ulong sql_type
+  );
+  int append_union_all_start_sql_part(
+    ulong sql_type
+  );
+  int append_union_all_sql_part(
+    ulong sql_type
+  );
+  int append_union_all_end_sql_part(
+    ulong sql_type
+  );
+  int append_multi_range_cnt_sql_part(
+    ulong sql_type,
+    uint multi_range_cnt,
+    bool with_comma
+  );
+  int append_multi_range_cnt_with_name_sql_part(
+    ulong sql_type,
+    uint multi_range_cnt
+  );
+  int append_delete_all_rows_sql_part(
+    ulong sql_type
+  );
+  int append_update_sql(
+    const TABLE *table,
+    my_ptrdiff_t ptr_diff,
+    bool bulk
+  );
+  int append_delete_sql(
+    const TABLE *table,
+    my_ptrdiff_t ptr_diff,
+    bool bulk
+  );
+  bool sql_is_filled_up(
+    ulong sql_type
+  );
+  bool sql_is_empty(
+    ulong sql_type
+  );
+  bool support_multi_split_read_sql();
+  bool support_bulk_update_sql();
+  int bulk_tmp_table_insert();
+  int bulk_tmp_table_end_bulk_insert();
+  int bulk_tmp_table_rnd_init();
+  int bulk_tmp_table_rnd_next();
+  int bulk_tmp_table_rnd_end();
+  int mk_bulk_tmp_table_and_bulk_start();
+  void rm_bulk_tmp_table();
+  bool bulk_tmp_table_created();
+  int print_item_type(
+    Item *item,
+    spider_string *str,
+    const char *alias,
+    uint alias_length
+  );
+  bool support_use_handler_sql(
+    int use_handler
+  );
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  bool support_bulk_access_hs() const;
+#endif
+  int init_union_table_name_pos_sql();
+  int set_union_table_name_pos_sql();
+  int append_lock_tables_list();
+  int lock_tables();
+  int dml_init();
+#ifdef HA_CAN_BULK_ACCESS
+  int bulk_access_begin(
+    void *info
+  );
+  int bulk_access_current(
+    void *info
+  );
+  void bulk_access_end();
+#endif
+};
diff --git a/storage/spider/hs_client/allocator.hpp b/storage/spider/hs_client/allocator.hpp
new file mode 100644
index 00000000..c302e078
--- /dev/null
+++ b/storage/spider/hs_client/allocator.hpp
@@ -0,0 +1,43 @@
+
+// vim:sw=2:ai
+
+/*
+ * Copyright (C) 2010-2011 DeNA Co.,Ltd.. All rights reserved.
+ * Copyright (C) 2011-2017 Kentoku SHIBA
+ * See COPYRIGHT.txt for details.
+ */
+
+#ifndef DENA_ALLOCATOR_HPP
+#define DENA_ALLOCATOR_HPP
+
+#if 0
+extern "C" {
+#include <tlsf.h>
+};
+#define DENA_MALLOC(x) tlsf_malloc(x)
+#define DENA_REALLOC(x, y) tlsf_realloc(x, y)
+#define DENA_FREE(x) tlsf_free(x)
+#define DENA_NEWCHAR(x) static_cast<char *>(tlsf_malloc(x))
+#define DENA_DELETE(x) tlsf_free(x)
+#endif
+
+#if 1
+#define DENA_MALLOC(x) malloc(x)
+#define DENA_REALLOC(x, y) realloc(x, y)
+#define DENA_FREE(x) free(x)
+#define DENA_NEWCHAR(x) (new char[x])
+#define DENA_DELETE(x) (delete [] x)
+#endif
+
+#if 1
+#define DENA_ALLOCA_ALLOCATE(typ, len) \
+  (typ *) (alloca((len) * sizeof(typ)))
+#define DENA_ALLOCA_FREE(x)
+#else
+#define DENA_ALLOCA_ALLOCATE(typ, len) \
+  (typ *) (malloc((len) * sizeof(typ)))
+#define DENA_ALLOCA_FREE(x) free(x)
+#endif
+
+#endif
+
diff --git a/storage/spider/hs_client/auto_addrinfo.hpp b/storage/spider/hs_client/auto_addrinfo.hpp
new file mode 100644
index 00000000..5262ad11
--- /dev/null
+++ b/storage/spider/hs_client/auto_addrinfo.hpp
@@ -0,0 +1,49 @@
+
+// vim:sw=2:ai
+
+/*
+ * Copyright (C) 2010-2011 DeNA Co.,Ltd.. All rights reserved.
+ * See COPYRIGHT.txt for details.
+ */
+
+#ifndef DENA_AUTO_ADDRINFO_HPP
+#define DENA_AUTO_ADDRINFO_HPP
+
+#ifndef __WIN__
+#include <netdb.h>
+#endif
+
+#include "util.hpp"
+
+namespace dena {
+
+struct auto_addrinfo : private noncopyable {
+  auto_addrinfo() : addr(0) { }
+  ~auto_addrinfo() {
+    reset();
+  }
+  void reset(addrinfo *a = 0) {
+    if (addr != 0) {
+      freeaddrinfo(addr);
+    }
+    addr = a;
+  }
+  const addrinfo *get() const { return addr; }
+  int resolve(const char *node, const char *service, int flags = 0,
+    int family = AF_UNSPEC, int socktype = SOCK_STREAM, int protocol = 0) {
+    reset();
+    addrinfo hints;
+    hints.ai_flags = flags;
+    hints.ai_family = family;
+    hints.ai_socktype = socktype;
+    hints.ai_protocol = protocol;
+    return getaddrinfo(node, service, &hints, &addr);
+  }
+ private:
+  addrinfo *addr;
+};
+
+};
+
+#endif
+
diff --git a/storage/spider/hs_client/auto_file.hpp b/storage/spider/hs_client/auto_file.hpp
new file mode 100644
index 00000000..ddd1f8c9
--- /dev/null
+++ b/storage/spider/hs_client/auto_file.hpp
@@ -0,0 +1,67 @@
+
+// vim:sw=2:ai
+
+/*
+ * Copyright (C) 2010-2011 DeNA Co.,Ltd.. All rights reserved.
+ * See COPYRIGHT.txt for details.
+ */
+
+#ifndef DENA_AUTO_FILE_HPP
+#define DENA_AUTO_FILE_HPP
+
+/*
+#ifndef __WIN__
+#include <dirent.h>
+#endif
+*/
+
+#include "util.hpp"
+
+namespace dena {
+
+struct auto_file : private noncopyable {
+  auto_file() : fd(-1) { }
+  ~auto_file() {
+    reset();
+  }
+  int get() const { return fd; }
+  int close() {
+    if (fd < 0) {
+      return 0;
+    }
+    const int r = ::close(fd);
+    fd = -1;
+    return r;
+  }
+  void reset(int x = -1) {
+    if (fd >= 0) {
+      this->close();
+    }
+    fd = x;
+  }
+ private:
+  int fd;
+};
+
+/*
+struct auto_dir : private noncopyable {
+  auto_dir() : dp(0) { }
+  ~auto_dir() {
+    reset();
+  }
+  DIR *get() const { return dp; }
+  void reset(DIR *d = 0) {
+    if (dp != 0) {
+      closedir(dp);
+    }
+    dp = d;
+  }
+ private:
+  DIR *dp;
+};
+*/
+
+};
+
+#endif
+
diff --git a/storage/spider/hs_client/auto_ptrcontainer.hpp b/storage/spider/hs_client/auto_ptrcontainer.hpp
new file mode 100644
index 00000000..3629f19c
--- /dev/null
+++ b/storage/spider/hs_client/auto_ptrcontainer.hpp
@@ -0,0 +1,70 @@
+
+// vim:sw=2:ai
+
+/*
+ * Copyright (C) 2010-2011 DeNA Co.,Ltd.. All rights reserved.
+ * Copyright (C) 2011 Kentoku SHIBA
+ * See COPYRIGHT.txt for details.
+ */
+
+#ifndef DENA_AUTO_PTRCONTAINER_HPP
+#define DENA_AUTO_PTRCONTAINER_HPP
+
+namespace dena {
+
+/*
+template <typename Tcnt>
+struct auto_ptrcontainer {
+  typedef Tcnt container_type;
+  typedef typename container_type::value_type value_type;
+  typedef typename container_type::pointer pointer;
+  typedef typename container_type::reference reference;
+  typedef typename container_type::const_reference const_reference;
+  typedef typename container_type::size_type size_type;
+  typedef typename container_type::difference_type difference_type;
+  typedef typename container_type::iterator iterator;
+  typedef typename container_type::const_iterator const_iterator;
+  typedef typename container_type::reverse_iterator reverse_iterator;
+  typedef typename container_type::const_reverse_iterator
+    const_reverse_iterator;
+  iterator begin() { return cnt.begin(); }
+  const_iterator begin() const { return cnt.begin(); }
+  iterator end() { return cnt.end(); }
+  const_iterator end() const { return cnt.end(); }
+  reverse_iterator rbegin() { return cnt.rbegin(); }
+  reverse_iterator rend() { return cnt.rend(); }
+  const_reverse_iterator rbegin() const { return cnt.rbegin(); }
+  const_reverse_iterator rend() const { return cnt.rend(); }
+  size_type size() const { return cnt.size(); }
+  size_type max_size() const { return cnt.max_size(); }
+  bool empty() const { return cnt.empty(); }
+  reference front() { return cnt.front(); }
+  const_reference front() const { cnt.front(); }
+  reference back() { return cnt.back(); }
+  const_reference back() const { cnt.back(); }
+  void swap(auto_ptrcontainer& x) { cnt.swap(x.cnt); }
+  ~auto_ptrcontainer() {
+    for (iterator i = begin(); i != end(); ++i) {
+      delete *i;
+    }
+  }
+  template <typename Tap> void push_back_ptr(Tap& ap) {
+    cnt.push_back(ap.get());
+    ap.release();
+  }
+  void erase_ptr(iterator i) {
+    delete *i;
+    cnt.erase(i);
+  }
+  reference operator [](size_type n) { return cnt[n]; }
+  const_reference operator [](size_type n) const { return cnt[n]; }
+  void clear() { cnt.clear(); }
+ private:
+  Tcnt cnt;
+};
+*/
+
+};
+
+#endif
+
diff --git a/storage/spider/hs_client/config.cpp b/storage/spider/hs_client/config.cpp
new file mode 100644
index 00000000..0003c3fd
--- /dev/null
+++ b/storage/spider/hs_client/config.cpp
@@ -0,0 +1,292 @@
+
+// vim:sw=2:ai
+
+/*
+ * Copyright (C) 2010-2011 DeNA Co.,Ltd.. All rights reserved.
+ * Copyright (C) 2011-2017 Kentoku SHIBA
+ * See COPYRIGHT.txt for details.
+ */
+
+#include <my_global.h>
+#include "mysql_version.h"
+#if MYSQL_VERSION_ID < 50500
+#include "mysql_priv.h"
+#include <mysql/plugin.h>
+#else
+#include "sql_priv.h"
+#include "probes_mysql.h"
+#endif
+
+#include "config.hpp"
+
+namespace dena {
+
+unsigned int verbose_level = 0;
+
+uchar *
+conf_get_key(
+  conf_param *param,
+  size_t *length,
+  my_bool not_used __attribute__ ((unused))
+) {
+  *length = param->key.length();
+  return (uchar*) param->key.ptr();
+}
+
+config::config()
+{
+  if (my_hash_init(PSI_INSTRUMENT_ME, &conf_hash, &my_charset_bin, 32, 0, 0,
+                   (my_hash_get_key) conf_get_key, 0, 0))
+    init = FALSE;
+  else
+    init = TRUE;
+  return;
+}
+
+config::~config()
+{
+  if (init)
+  {
+    conf_param *param;
+    while ((param = (conf_param *) my_hash_element(&conf_hash, 0)))
+    {
+      my_hash_delete(&conf_hash, (uchar*) param);
+      delete param;
+    }
+    my_hash_free(&conf_hash);
+  }
+}
+
+conf_param *
+config::find(const String& key) const
+{
+  if (init)
+    return (conf_param *) my_hash_search(&conf_hash, (const uchar*) key.ptr(),
+      key.length());
+  else
+    return NULL;
+}
+
+conf_param *
+config::find(const char *key) const
+{
+  if (init)
+    return (conf_param *) my_hash_search(&conf_hash, (const uchar*) key,
+      strlen(key));
+  else
+    return NULL;
+}
+
+String
+config::get_str(const String& key, const String& def) const
+{
+  DENA_VERBOSE(30, list_all_params());
+  conf_param *param = find(key);
+  if (!param) {
+    DENA_VERBOSE(10, fprintf(stderr, "CONFIG: %s=%s(default)\n", key.ptr(),
+      def.ptr()));
+    return def;
+  }
+  DENA_VERBOSE(10, fprintf(stderr, "CONFIG: %s=%s\n", key.ptr(),
+    param->val.ptr()));
+  return param->val;
+}
+
+String
+config::get_str(const char *key, const char *def) const
+{
+  DENA_VERBOSE(30, list_all_params());
+  conf_param *param = find(key);
+  if (!param) {
+    DENA_VERBOSE(10, fprintf(stderr, "CONFIG: %s=%s(default)\n", key, def));
+    return String(def, strlen(def), &my_charset_bin);
+  }
+  DENA_VERBOSE(10, fprintf(stderr, "CONFIG: %s=%s\n",
+    key, param->val.ptr()));
+  return param->val;
+}
+
+long long
+config::get_int(const String& key, long long def) const
+{
+  int err;
+  DENA_VERBOSE(30, list_all_params());
+  conf_param *param = find(key);
+  if (!param) {
+    DENA_VERBOSE(10, fprintf(stderr, "CONFIG: %s=%lld(default)\n", key.ptr(),
+      def));
+    return def;
+  }
+  const long long r = my_strtoll10(param->val.ptr(), (char**) NULL, &err);
+  if (err) {
+    DENA_VERBOSE(10, fprintf(stderr, "CONFIG: %s=%lld(err)\n", key.ptr(),
+      def));
+    return def;
+  }
+  DENA_VERBOSE(10, fprintf(stderr, "CONFIG: %s=%lld\n", key.ptr(), r));
+  return r;
+}
+
+long long
+config::get_int(const char *key, long long def) const
+{
+  int err;
+  DENA_VERBOSE(30, list_all_params());
+  conf_param *param = find(key);
+  if (!param) {
+    DENA_VERBOSE(10, fprintf(stderr, "CONFIG: %s=%lld(default)\n", key, def));
+    return def;
+  }
+  const long long r = my_strtoll10(param->val.ptr(), (char**) NULL, &err);
+  if (err) {
+    DENA_VERBOSE(10, fprintf(stderr, "CONFIG: %s=%lld(err)\n", key, def));
+    return def;
+  }
+  DENA_VERBOSE(10, fprintf(stderr, "CONFIG: %s=%lld\n", key, r));
+  return r;
+}
+
+bool
+config::replace(const char *key, const char *val)
+{
+  uint32 val_len = strlen(val);
+  conf_param *param = find(key);
+  if (!param) {
+    /* create */
+    if (!(param = new conf_param()))
+      return TRUE;
+    uint32 key_len = strlen(key);
+    if (
+      param->key.reserve(key_len + 1) ||
+      param->val.reserve(val_len + 1)
+    ) {
+      delete param;
+      return TRUE;
+    }
+    param->key.q_append(key, key_len);
+    param->val.q_append(val, val_len);
+    param->key.c_ptr_safe();
+    param->val.c_ptr_safe();
+    if (my_hash_insert(&conf_hash, (uchar*) param))
+    {
+      delete param;
+      return TRUE;
+    }
+    DENA_VERBOSE(10, fprintf(stderr, "CONFIG: %s=%s(create)\n",
+      param->key.ptr(), param->val.ptr()));
+    return FALSE;
+  }
+  /* replace */
+  param->val.length(0);
+  if (param->val.reserve(val_len + 1))
+    return TRUE;
+  param->val.q_append(val, val_len);
+  param->val.c_ptr_safe();
+  DENA_VERBOSE(10, fprintf(stderr, "CONFIG: %s=%s(replace)\n",
+    param->key.ptr(), param->val.ptr()));
+  return FALSE;
+}
+
+bool
+config::replace(const char *key, long long val)
+{
+  char val_str[22];
+  sprintf(val_str, "%lld", val);
+  return replace(key, val_str);
+}
+
+bool
+config::compare(const char *key, const char *val)
+{
+  conf_param *param = find(key);
+  if (!param)
+    return FALSE;
+  return !strcmp(param->val.ptr(), val);
+}
+
+void
+config::list_all_params() const
+{
+  conf_param *param;
+  DENA_VERBOSE(10, fprintf(stderr, "list_all_params start\n"));
+  for(ulong i = 0; i < conf_hash.records; i++)
+  {
+    if ((param = (conf_param *) my_hash_element((HASH *) &conf_hash, i)))
+    {
+      DENA_VERBOSE(10, fprintf(stderr, "CONFIG: %s=%s\n",
+        param->key.ptr(), param->val.ptr()));
+    }
+  }
+  DENA_VERBOSE(10, fprintf(stderr, "list_all_params end\n"));
+}
+
+config&
+config::operator =(const config& x)
+{
+  DENA_VERBOSE(10, fprintf(stderr, "config operator = start"));
+  if (this != &x && init && x.init) {
+    conf_param *param, *new_param;
+    for(ulong i = 0; i < x.conf_hash.records; i++)
+    {
+      if (
+        (param = (conf_param *) my_hash_element((HASH *) &x.conf_hash, i)) &&
+        (new_param = new conf_param())
+      ) {
+        if (
+          !new_param->key.copy(param->key) &&
+          !new_param->val.copy(param->val)
+        ) {
+          new_param->key.c_ptr_safe();
+          new_param->val.c_ptr_safe();
+          DENA_VERBOSE(10, fprintf(stderr, "CONFIG: %s=%s\n",
+            new_param->key.ptr(), new_param->val.ptr()));
+          if (my_hash_insert(&conf_hash, (uchar*) new_param))
+            delete new_param;
+        } else
+          delete new_param;
+      }
+    }
+  }
+  DENA_VERBOSE(10, fprintf(stderr, "config operator = end %p", this));
+  return *this;
+}
+
+void
+parse_args(int argc, char **argv, config& conf)
+{
+  conf_param *param;
+  for (int i = 1; i < argc; ++i) {
+    const char *const arg = argv[i];
+    const char *const eq = strchr(arg, '=');
+    if (eq == 0) {
+      continue;
+    }
+    if (!(param = new conf_param()))
+      continue;
+    uint32 key_len = (uint32)(eq - arg);
+    uint32 val_len = strlen(eq + 1);
+    if (
+      param->key.reserve(key_len + 1) ||
+      param->val.reserve(val_len + 1)
+    ) {
+      delete param;
+      continue;
+    }
+    param->key.q_append(arg, key_len);
+    param->val.q_append(eq + 1, val_len);
+    param->key.c_ptr_safe();
+    param->val.c_ptr_safe();
+    if (my_hash_insert(&conf.conf_hash, (uchar*) param))
+    {
+      delete param;
+      continue;
+    }
+  }
+  param = conf.find("verbose");
+  if (param) {
+    verbose_level = atoi(param->val.c_ptr());
+  }
+}
+
+};
+
diff --git a/storage/spider/hs_client/config.hpp b/storage/spider/hs_client/config.hpp
new file mode 100644
index 00000000..2880f2f5
--- /dev/null
+++ b/storage/spider/hs_client/config.hpp
@@ -0,0 +1,81 @@
+
+// vim:sw=2:ai
+
+/*
+ * Copyright (C) 2010-2011 DeNA Co.,Ltd.. All rights reserved.
+ * Copyright (C) 2011 Kentoku SHIBA
+ * See COPYRIGHT.txt for details.
+ */
+
+#ifndef DENA_CONFIG_HPP
+#define DENA_CONFIG_HPP
+
+#include "mysql_version.h"
+#if MYSQL_VERSION_ID < 50500
+#include "mysql_priv.h"
+#include <mysql/plugin.h>
+#else
+#include "sql_priv.h"
+#include "probes_mysql.h"
+#include "sql_class.h"
+#endif
+
+#define DENA_VERBOSE(lv, x) if (dena::verbose_level >= (lv)) { (x); }
+
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+#define INFO_KIND_HS_RET_FIELDS 1
+#define INFO_KIND_HS_APPEND_STRING_REF 3
+#define INFO_KIND_HS_CLEAR_STRING_REF 4
+#define INFO_KIND_HS_INCREMENT_BEGIN 5
+#define INFO_KIND_HS_INCREMENT_END 6
+#define INFO_KIND_HS_DECREMENT_BEGIN 7
+#define INFO_KIND_HS_DECREMENT_END 8
+#endif
+
+namespace dena {
+
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+struct uint32_info {
+  size_t info_size;
+  uint32 *info;
+};
+#endif
+
+struct conf_param {
+  String key;
+  String val;
+};
+
+uchar *conf_get_key(
+  conf_param *share,
+  size_t *length,
+  my_bool not_used __attribute__ ((unused))
+);
+
+struct config {
+  bool init;
+  HASH conf_hash;
+  config();
+  ~config();
+  conf_param *find(const String& key) const;
+  conf_param *find(const char *key) const;
+  String get_str(const String& key, const String& def =
+    String("", &my_charset_bin)) const;
+  String get_str(const char *key, const char *def = "") const;
+  long long get_int(const String& key, long long def = 0) const;
+  long long get_int(const char *key, long long def = 0) const;
+  bool replace(const char *key, const char *val);
+  bool replace(const char *key, long long val);
+  bool compare(const char *key, const char *val);
+  void list_all_params() const;
+  config& operator =(const config& x);
+};
+
+void parse_args(int argc, char **argv, config& conf);
+
+extern unsigned int verbose_level;
+
+};
+
+#endif
+
diff --git a/storage/spider/hs_client/escape.cpp b/storage/spider/hs_client/escape.cpp
new file mode 100644
index 00000000..f3e60afc
--- /dev/null
+++ b/storage/spider/hs_client/escape.cpp
@@ -0,0 +1,129 @@
+
+// vim:sw=2:ai
+
+/*
+ * Copyright (C) 2010 DeNA Co.,Ltd.. All rights reserved.
+ * Copyright (C) 2011-2017 Kentoku SHIBA
+ * See COPYRIGHT.txt for details.
+ */
+
+#include <my_global.h>
+#include "mysql_version.h"
+#include "hs_compat.h"
+#include "escape.hpp"
+#include "string_buffer.hpp"
+#include "fatal.hpp"
+#include "string_util.hpp"
+
+#define DBG_OP(x)
+#define DBG_BUF(x)
+
+namespace dena {
+
+enum special_char_t {
+  special_char_escape_prefix = 0x01,         /* SOH */
+  special_char_noescape_min = 0x10,          /* DLE */
+  special_char_escape_shift = 0x40,          /* '@' */
+};
+
+void
+escape_string(char *& wp, const char *start, const char *finish)
+{
+  while (start != finish) {
+    const unsigned char c = *start;
+    if (c >= special_char_noescape_min) {
+      wp[0] = c; /* no need to escape */
+    } else {
+      wp[0] = special_char_escape_prefix;
+      ++wp;
+      wp[0] = c + special_char_escape_shift;
+    }
+    ++start;
+    ++wp;
+  }
+}
+
+void
+escape_string(string_buffer& ar, const char *start, const char *finish)
+{
+  const size_t buflen = (finish - start) * 2;
+  char *const wp_begin = ar.make_space(buflen);
+  char *wp = wp_begin;
+  escape_string(wp, start, finish);
+  ar.space_wrote(wp - wp_begin);
+}
+
+bool
+unescape_string(char *& wp, const char *start, const char *finish)
+{
+  /* works even if wp == start */
+  while (start != finish) {
+    const unsigned char c = *start;
+    if (c != special_char_escape_prefix) {
+      wp[0] = c;
+    } else if (start + 1 != finish) {
+      ++start;
+      const unsigned char cn = *start;
+      if (cn < special_char_escape_shift) {
+	return false;
+      }
+      wp[0] = cn - special_char_escape_shift;
+    } else {
+      return false;
+    }
+    ++start;
+    ++wp;
+  }
+  return true;
+}
+
+bool
+unescape_string(string_buffer& ar, const char *start, const char *finish)
+{
+  const size_t buflen = finish - start;
+  char *const wp_begin = ar.make_space(buflen);
+  char *wp = wp_begin;
+  const bool r = unescape_string(wp, start, finish);
+  ar.space_wrote(wp - wp_begin);
+  return r;
+}
+
+uint32
+read_ui32(char *& start, char *finish)
+{
+  char *const n_begin = start;
+  read_token(start, finish);
+  char *const n_end = start;
+  uint32 v = 0;
+  for (char *p = n_begin; p != n_end; ++p) {
+    const char ch = p[0];
+    if (ch >= '0' && ch <= '9') {
+      v *= 10;
+      v += (ch - '0');
+    }
+  }
+  return v;
+}
+
+void
+write_ui32(string_buffer& buf, uint32 v)
+{
+  char *wp = buf.make_space(12);
+  int len = snprintf(wp, 12, "%u", v);
+  if (len > 0) {
+    buf.space_wrote(len);
+  }
+}
+
+void
+write_ui64(string_buffer& buf, uint64 v)
+{
+  char *wp = buf.make_space(22);
+  int len = snprintf(wp, 22, "%llu", static_cast<unsigned long long>(v));
+  if (len > 0) {
+    buf.space_wrote(len);
+  }
+}
+
+};
+
diff --git a/storage/spider/hs_client/escape.hpp b/storage/spider/hs_client/escape.hpp
new file mode 100644
index 00000000..4c23e167
--- /dev/null
+++ b/storage/spider/hs_client/escape.hpp
@@ -0,0 +1,64 @@
+
+// vim:sw=2:ai
+
+/*
+ * Copyright (C) 2010 DeNA Co.,Ltd.. All rights reserved.
+ * See COPYRIGHT.txt for details.
+ */
+
+#include "string_buffer.hpp"
+#include "string_ref.hpp"
+#include "string_util.hpp"
+
+#ifndef DENA_ESCAPE_HPP
+#define DENA_ESCAPE_HPP
+
+namespace dena {
+
+void escape_string(char *& wp, const char *start, const char *finish);
+void escape_string(string_buffer& ar, const char *start, const char *finish);
+bool unescape_string(char *& wp, const char *start, const char *finish);
+  /* unescaped_string() works even if wp == start */
+bool unescape_string(string_buffer& ar, const char *start, const char *finish);
+
+uint32 read_ui32(char *& start, char *finish);
+void write_ui32(string_buffer& buf, uint32 v);
+void write_ui64(string_buffer& buf, uint64 v);
+
+inline bool
+is_null_expression(const char *start, const char *finish)
+{
+  return (finish == start + 1 && start[0] == 0);
+}
+
+inline void
+read_token(char *& start, char *finish)
+{
+  char *const p = memchr_char(start, '\t', finish - start);
+  if (p == 0) {
+    start = finish;
+  } else {
+    start = p;
+  }
+}
+
+inline void
+skip_token_delim_fold(char *& start, char *finish)
+{
+  while (start != finish && start[0] == '\t') {
+    ++start;
+  }
+}
+
+inline void
+skip_one(char *& start, char *finish)
+{
+  if (start != finish) {
+    ++start;
+  }
+}
+
+};
+
+#endif
+
diff --git a/storage/spider/hs_client/fatal.cpp b/storage/spider/hs_client/fatal.cpp
new file mode 100644
index 00000000..cfbc14df
--- /dev/null
+++ b/storage/spider/hs_client/fatal.cpp
@@ -0,0 +1,49 @@
+
+// vim:sw=2:ai
+
+/*
+ * Copyright (C) 2010-2011 DeNA Co.,Ltd.. All rights reserved.
+ * Copyright (C) 2011-2017 Kentoku SHIBA
+ * See COPYRIGHT.txt for details.
+ */
+
+#include <my_global.h>
+#include "mysql_version.h"
+#if MYSQL_VERSION_ID < 50500
+#include "mysql_priv.h"
+#include <mysql/plugin.h>
+#else
+#include "sql_priv.h"
+#include "probes_mysql.h"
+#endif
+
+#include "fatal.hpp"
+
+namespace dena {
+
+/*
+const int opt_syslog = LOG_ERR | LOG_PID | LOG_CONS;
+*/
+
+void
+fatal_abort(const String& message)
+{
+  fprintf(stderr, "FATAL_COREDUMP: %s\n", message.ptr());
+/*
+  syslog(opt_syslog, "FATAL_COREDUMP: %s", message.ptr());
+*/
+  abort();
+}
+
+void
+fatal_abort(const char *message)
+{
+  fprintf(stderr, "FATAL_COREDUMP: %s\n", message);
+/*
+  syslog(opt_syslog, "FATAL_COREDUMP: %s", message);
+*/
+  abort();
+}
+
+};
+
diff --git a/storage/spider/hs_client/fatal.hpp b/storage/spider/hs_client/fatal.hpp
new file mode 100644
index 00000000..38fc149e
--- /dev/null
+++ b/storage/spider/hs_client/fatal.hpp
@@ -0,0 +1,31 @@
+
+// vim:sw=2:ai
+
+/*
+ * Copyright (C) 2010-2011 DeNA Co.,Ltd.. All rights reserved.
+ * Copyright (C) 2011-2017 Kentoku SHIBA
+ * See COPYRIGHT.txt for details.
+ */
+
+#ifndef DENA_FATAL_HPP
+#define DENA_FATAL_HPP
+
+#include "mysql_version.h"
+#if MYSQL_VERSION_ID < 50500
+#include "mysql_priv.h"
+#include <mysql/plugin.h>
+#else
+#include "sql_priv.h"
+#include "probes_mysql.h"
+#include "sql_class.h"
+#endif
+
+namespace dena {
+
+void fatal_abort(const String& message);
+void fatal_abort(const char *message);
+
+};
+
+#endif
+
diff --git a/storage/spider/hs_client/hs_compat.h b/storage/spider/hs_client/hs_compat.h
new file mode 100644
index 00000000..fb9b02ad
--- /dev/null
+++ b/storage/spider/hs_client/hs_compat.h
@@ -0,0 +1,41 @@
+/* Copyright (C) 2013-2018 Kentoku Shiba
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+#ifndef HS_COMPAT_H
+#define HS_COMPAT_H
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100500
+#define SPD_INIT_DYNAMIC_ARRAY2(A, B, C, D, E, F) \
+  my_init_dynamic_array2(PSI_INSTRUMENT_ME, A, B, C, D, E, F)
+#define SPD_INIT_ALLOC_ROOT(A, B, C, D) \
+  init_alloc_root(PSI_INSTRUMENT_ME, A, B, C, D)
+#elif defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100213
+#define SPD_INIT_DYNAMIC_ARRAY2(A, B, C, D, E, F) \
+  my_init_dynamic_array2(A, B, C, D, E, F)
+#define SPD_INIT_ALLOC_ROOT(A, B, C, D) \
+  init_alloc_root(A, "spider", B, C, D)
+#elif defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100000
+#define SPD_INIT_DYNAMIC_ARRAY2(A, B, C, D, E, F) \
+  my_init_dynamic_array2(A, B, C, D, E, F)
+#define SPD_INIT_ALLOC_ROOT(A, B, C, D) \
+  init_alloc_root(A, B, C, D)
+#else
+#define SPD_INIT_DYNAMIC_ARRAY2(A, B, C, D, E, F) \
+  my_init_dynamic_array2(A, B, C, D, E)
+#define SPD_INIT_ALLOC_ROOT(A, B, C, D) \
+  init_alloc_root(A, B, C)
+#endif
+
+#endif
diff --git a/storage/spider/hs_client/hstcpcli.cpp b/storage/spider/hs_client/hstcpcli.cpp
new file mode 100644
index 00000000..4c93b5a3
--- /dev/null
+++ b/storage/spider/hs_client/hstcpcli.cpp
@@ -0,0 +1,667 @@
+
+// vim:sw=2:ai
+
+/*
+ * Copyright (C) 2010-2011 DeNA Co.,Ltd.. All rights reserved.
+ * Copyright (C) 2011-2017 Kentoku SHIBA
+ * See COPYRIGHT.txt for details.
+ */
+
+#include <my_global.h>
+#include "mysql_version.h"
+#include "hs_compat.h"
+#if MYSQL_VERSION_ID < 50500
+#include "mysql_priv.h"
+#include <mysql/plugin.h>
+#else
+#include "sql_priv.h"
+#include "probes_mysql.h"
+#include "sql_class.h"
+#endif
+
+#include "hstcpcli.hpp"
+#include "auto_file.hpp"
+#include "string_util.hpp"
+#include "auto_addrinfo.hpp"
+#include "escape.hpp"
+#include "util.hpp"
+
+/* TODO */
+#if !defined(__linux__) && !defined(__FreeBSD__) && !defined(MSG_NOSIGNAL)
+#define MSG_NOSIGNAL 0
+#endif
+
+#define DBG(x)
+
+namespace dena {
+
+hstresult::hstresult()
+{
+  SPD_INIT_DYNAMIC_ARRAY2(&flds, sizeof(string_ref), NULL, 16, 16,
+    MYF(MY_WME));
+}
+
+hstresult::~hstresult()
+{
+  delete_dynamic(&flds);
+}
+
+struct hstcpcli : public hstcpcli_i, private noncopyable {
+  hstcpcli(const socket_args& args);
+  virtual ~hstcpcli();
+  virtual void close();
+  virtual int reconnect();
+  virtual bool stable_point();
+  virtual void request_buf_open_index(size_t pst_id, const char *dbn,
+    const char *tbl, const char *idx, const char *retflds, const char *filflds);
+  virtual void request_buf_auth(const char *secret, const char *typ);
+  virtual void request_buf_exec_generic(size_t pst_id, const string_ref& op,
+    const string_ref *kvs, size_t kvslen, uint32 limit, uint32 skip,
+    const string_ref& mod_op, const string_ref *mvs, size_t mvslen,
+    const hstcpcli_filter *fils, size_t filslen, int invalues_keypart,
+    const string_ref *invalues, size_t invalueslen);
+  virtual size_t request_buf_append(const char *start, const char *finish);
+  virtual void request_reset();
+  virtual int request_send();
+  virtual int response_recv(size_t& num_flds_r);
+  virtual int get_result(hstresult& result);
+  virtual const string_ref *get_next_row();
+  virtual const string_ref *get_next_row_from_result(hstresult& result);
+  virtual size_t get_row_size();
+  virtual size_t get_row_size_from_result(hstresult& result);
+  virtual void response_buf_remove();
+  virtual int get_error_code();
+  virtual String& get_error();
+  virtual void clear_error();
+  virtual int set_timeout(int send_timeout, int recv_timeout);
+  virtual size_t get_num_req_bufd() { return num_req_bufd; }
+  virtual size_t get_num_req_sent() { return num_req_sent; }
+  virtual size_t get_num_req_rcvd() { return num_req_rcvd; }
+  virtual size_t get_response_end_offset() { return response_end_offset; }
+  virtual const char *get_readbuf_begin() { return readbuf.begin(); }
+  virtual const char *get_readbuf_end() { return readbuf.end(); }
+  virtual const char *get_writebuf_begin() { return writebuf.begin(); }
+  virtual size_t get_writebuf_size() { return writebuf.size(); }
+  virtual void write_error_to_log(const char *func_name, const char *file_name,
+    ulong line_no);
+ private:
+  int read_more();
+  int set_error(int code, const String& str);
+  int set_error(int code, const char *str);
+ private:
+  auto_file fd;
+  socket_args sargs;
+  string_buffer readbuf;
+  string_buffer writebuf;
+  size_t response_end_offset; /* incl newline */
+  size_t cur_row_offset;
+  size_t cur_row_size;
+  size_t num_flds;
+  size_t num_req_bufd; /* buffered but not yet sent */
+  size_t num_req_sent; /* sent but not yet received */
+  size_t num_req_rcvd; /* received but not yet removed */
+  int error_code;
+  String error_str;
+  DYNAMIC_ARRAY flds;
+  int errno_buf;
+};
+
+hstcpcli::hstcpcli(const socket_args& args)
+  : sargs(args), response_end_offset(0), cur_row_offset(0), cur_row_size(0),
+    num_flds(0), num_req_bufd(0), num_req_sent(0), num_req_rcvd(0),
+    error_code(0), errno_buf(0)
+{
+  String err;
+  SPD_INIT_DYNAMIC_ARRAY2(&flds, sizeof(string_ref), NULL, 16, 16, MYF(MY_WME));
+  if (socket_connect(fd, sargs, err) != 0) {
+    set_error(-1, err);
+  }
+}
+
+hstcpcli::~hstcpcli()
+{
+  delete_dynamic(&flds);
+}
+
+void
+hstcpcli::close()
+{
+  fd.close();
+  readbuf.clear();
+  writebuf.clear();
+  response_end_offset = 0;
+  cur_row_offset = 0;
+  num_flds = 0;
+  num_req_bufd = 0;
+  num_req_sent = 0;
+  num_req_rcvd = 0;
+}
+
+int
+hstcpcli::reconnect()
+{
+  clear_error();
+  close();
+  String err;
+  if (socket_connect(fd, sargs, err) != 0) {
+    set_error(-1, err);
+  }
+  return error_code;
+}
+
+int
+hstcpcli::set_timeout(int send_timeout, int recv_timeout)
+{
+  String err;
+  sargs.send_timeout = send_timeout;
+  sargs.recv_timeout = recv_timeout;
+  if (socket_set_timeout(fd, sargs, err) != 0) {
+    set_error(-1, err);
+  }
+  return error_code;
+}
+
+bool
+hstcpcli::stable_point()
+{
+  /* returns true if cli can send a new request */
+  return fd.get() >= 0 && num_req_bufd == 0 && num_req_sent == 0 &&
+    num_req_rcvd == 0 && response_end_offset == 0;
+}
+
+int
+hstcpcli::get_error_code()
+{
+  return error_code;
+}
+
+String&
+hstcpcli::get_error()
+{
+  return error_str;
+}
+
+int
+hstcpcli::read_more()
+{
+  const size_t block_size = 4096; // FIXME
+  char *const wp = readbuf.make_space(block_size);
+  int rlen;
+  errno = 0;
+  while ((rlen = read(fd.get(), wp, block_size)) <= 0) {
+    errno_buf = errno;
+    if (rlen < 0) {
+      if (errno == EINTR || errno == EAGAIN)
+      {
+        errno = 0;
+        continue;
+      }
+      error_str = String("read: failed", &my_charset_bin);
+    } else {
+      error_str = String("read: eof", &my_charset_bin);
+    }
+    return rlen;
+  }
+  readbuf.space_wrote(rlen);
+  return rlen;
+}
+
+void
+hstcpcli::clear_error()
+{
+  DBG(fprintf(stderr, "CLEAR_ERROR: %d\n", error_code));
+  error_code = 0;
+  error_str.length(0);
+}
+
+int
+hstcpcli::set_error(int code, const String& str)
+{
+  DBG(fprintf(stderr, "SET_ERROR: %d\n", code));
+  error_code = code;
+  error_str = str;
+  return error_code;
+}
+
+int
+hstcpcli::set_error(int code, const char *str)
+{
+  uint32 str_len = strlen(str);
+  DBG(fprintf(stderr, "SET_ERROR: %d\n", code));
+  error_code = code;
+  error_str.length(0);
+  if (error_str.reserve(str_len + 1))
+    return 0;
+  error_str.q_append(str, str_len);
+  error_str.c_ptr_safe();
+  return error_code;
+}
+
+void
+hstcpcli::request_buf_open_index(size_t pst_id, const char *dbn,
+  const char *tbl, const char *idx, const char *retflds, const char *filflds)
+{
+/*
+  if (num_req_sent > 0 || num_req_rcvd > 0) {
+*/
+  if (num_req_rcvd > 0) {
+    close();
+    set_error(-1, "request_buf_open_index: protocol out of sync");
+    return;
+  }
+  const string_ref dbn_ref(dbn, strlen(dbn));
+  const string_ref tbl_ref(tbl, strlen(tbl));
+  const string_ref idx_ref(idx, strlen(idx));
+  const string_ref rfs_ref(retflds, strlen(retflds));
+  writebuf.append_literal("P\t");
+  append_uint32(writebuf, pst_id); // FIXME size_t ?
+  writebuf.append_literal("\t");
+  writebuf.append(dbn_ref.begin(), dbn_ref.end());
+  writebuf.append_literal("\t");
+  writebuf.append(tbl_ref.begin(), tbl_ref.end());
+  writebuf.append_literal("\t");
+  writebuf.append(idx_ref.begin(), idx_ref.end());
+  writebuf.append_literal("\t");
+  writebuf.append(rfs_ref.begin(), rfs_ref.end());
+  if (filflds != 0) {
+    const string_ref fls_ref(filflds, strlen(filflds));
+    writebuf.append_literal("\t");
+    writebuf.append(fls_ref.begin(), fls_ref.end());
+  }
+  writebuf.append_literal("\n");
+  ++num_req_bufd;
+}
+
+void
+hstcpcli::request_buf_auth(const char *secret, const char *typ)
+{
+/*
+  if (num_req_sent > 0 || num_req_rcvd > 0) {
+*/
+  if (num_req_rcvd > 0) {
+    close();
+    set_error(-1, "request_buf_auth: protocol out of sync");
+    return;
+  }
+  if (typ == 0) {
+    typ = "1";
+  }
+  const string_ref typ_ref(typ, strlen(typ));
+  const string_ref secret_ref(secret, strlen(secret));
+  writebuf.append_literal("A\t");
+  writebuf.append(typ_ref.begin(), typ_ref.end());
+  writebuf.append_literal("\t");
+  writebuf.append(secret_ref.begin(), secret_ref.end());
+  writebuf.append_literal("\n");
+  ++num_req_bufd;
+}
+
+namespace {
+
+void
+append_delim_value(string_buffer& buf, const char *start, const char *finish)
+{
+  if (start == 0) {
+    /* null */
+    const char t[] = "\t\0";
+    buf.append(t, t + 2);
+  } else {
+    /* non-null */
+    buf.append_literal("\t");
+    escape_string(buf, start, finish);
+  }
+}
+
+};
+
+void
+hstcpcli::request_buf_exec_generic(size_t pst_id, const string_ref& op,
+  const string_ref *kvs, size_t kvslen, uint32 limit, uint32 skip,
+  const string_ref& mod_op, const string_ref *mvs, size_t mvslen,
+  const hstcpcli_filter *fils, size_t filslen, int invalues_keypart,
+  const string_ref *invalues, size_t invalueslen)
+{
+/*
+  if (num_req_sent > 0 || num_req_rcvd > 0) {
+*/
+  if (num_req_rcvd > 0) {
+    close();
+    set_error(-1, "request_buf_exec_generic: protocol out of sync");
+    return;
+  }
+  append_uint32(writebuf, pst_id); // FIXME size_t ?
+  writebuf.append_literal("\t");
+  writebuf.append(op.begin(), op.end());
+  writebuf.append_literal("\t");
+  append_uint32(writebuf, kvslen); // FIXME size_t ?
+  for (size_t i = 0; i < kvslen; ++i) {
+    const string_ref& kv = kvs[i];
+    append_delim_value(writebuf, kv.begin(), kv.end());
+  }
+  if (limit != 0 || skip != 0 || invalues_keypart >= 0 ||
+    mod_op.size() != 0 || filslen != 0) {
+    /* has more option */
+    writebuf.append_literal("\t");
+    append_uint32(writebuf, limit); // FIXME size_t ?
+    if (skip != 0 || invalues_keypart >= 0 ||
+      mod_op.size() != 0 || filslen != 0) {
+      writebuf.append_literal("\t");
+      append_uint32(writebuf, skip); // FIXME size_t ?
+    }
+    if (invalues_keypart >= 0) {
+      writebuf.append_literal("\t@\t");
+      append_uint32(writebuf, invalues_keypart);
+      writebuf.append_literal("\t");
+      append_uint32(writebuf, invalueslen);
+      for (size_t i = 0; i < invalueslen; ++i) {
+        const string_ref& s = invalues[i];
+        append_delim_value(writebuf, s.begin(), s.end());
+      }
+    }
+    for (size_t i = 0; i < filslen; ++i) {
+      const hstcpcli_filter& f = fils[i];
+      writebuf.append_literal("\t");
+      writebuf.append(f.filter_type.begin(), f.filter_type.end());
+      writebuf.append_literal("\t");
+      writebuf.append(f.op.begin(), f.op.end());
+      writebuf.append_literal("\t");
+      append_uint32(writebuf, f.ff_offset);
+      append_delim_value(writebuf, f.val.begin(), f.val.end());
+    }
+    if (mod_op.size() != 0) {
+      writebuf.append_literal("\t");
+      writebuf.append(mod_op.begin(), mod_op.end());
+      for (size_t i = 0; i < mvslen; ++i) {
+        const string_ref& mv = mvs[i];
+        append_delim_value(writebuf, mv.begin(), mv.end());
+      }
+    }
+  }
+  writebuf.append_literal("\n");
+  ++num_req_bufd;
+}
+
+size_t
+hstcpcli::request_buf_append(const char *start, const char *finish)
+{
+/*
+  if (num_req_sent > 0 || num_req_rcvd > 0) {
+*/
+  if (num_req_rcvd > 0) {
+    close();
+    set_error(-1, "request_buf_append: protocol out of sync");
+    return 0;
+  }
+  const char *nl = start;
+  size_t num_req = 0;
+  while ((nl = memchr_char(nl, '\n', finish - nl))) {
+    if (nl == finish)
+      break;
+    num_req++;
+    nl++;
+  }
+  num_req++;
+  writebuf.append(start, finish);
+  if (*(finish - 1) != '\n')
+    writebuf.append_literal("\n");
+  num_req_bufd += num_req;
+  return num_req;
+}
+
+void
+hstcpcli::request_reset()
+{
+  if (num_req_bufd) {
+    writebuf.erase_front(writebuf.size());
+    num_req_bufd = 0;
+  }
+}
+
+int
+hstcpcli::request_send()
+{
+  if (error_code < 0) {
+    return error_code;
+  }
+  clear_error();
+  if (fd.get() < 0) {
+    close();
+    return set_error(-1, "write: closed");
+  }
+/*
+  if (num_req_bufd == 0 || num_req_sent > 0 || num_req_rcvd > 0) {
+*/
+  if (num_req_bufd == 0 || num_req_rcvd > 0) {
+    close();
+    return set_error(-1, "request_send: protocol out of sync");
+  }
+  const size_t wrlen = writebuf.size();
+  const ssize_t r = send(fd.get(), writebuf.begin(), wrlen, MSG_NOSIGNAL);
+  if (r <= 0) {
+    close();
+    return set_error(-1, r < 0 ? "write: failed" : "write: eof");
+  }
+  writebuf.erase_front(r);
+  if (static_cast<size_t>(r) != wrlen) {
+    close();
+    return set_error(-1, "write: incomplete");
+  }
+  num_req_sent += num_req_bufd;
+  num_req_bufd = 0;
+  DBG(fprintf(stderr, "REQSEND 0\n"));
+  return 0;
+}
+
+int
+hstcpcli::response_recv(size_t& num_flds_r)
+{
+  if (error_code < 0) {
+    return error_code;
+  }
+  clear_error();
+  if (num_req_bufd > 0 || num_req_sent == 0 || num_req_rcvd > 0 ||
+    response_end_offset != 0) {
+    close();
+    return set_error(-1, "response_recv: protocol out of sync");
+  }
+  cur_row_offset = 0;
+  num_flds_r = num_flds = 0;
+  if (fd.get() < 0) {
+    return set_error(-1, "read: closed");
+  }
+  size_t offset = 0;
+  while (true) {
+    const char *const lbegin = readbuf.begin() + offset;
+    const char *const lend = readbuf.end();
+    if (lbegin < lend)
+    {
+      const char *const nl = memchr_char(lbegin, '\n', lend - lbegin);
+      if (nl != 0) {
+        offset += (nl + 1) - lbegin;
+        break;
+      }
+      offset += lend - lbegin;
+    }
+    if (read_more() <= 0) {
+      close();
+      error_code = -1;
+      return error_code;
+    }
+  }
+  response_end_offset = offset;
+  --num_req_sent;
+  ++num_req_rcvd;
+  char *start = readbuf.begin();
+  char *const finish = start + response_end_offset - 1;
+  const size_t resp_code = read_ui32(start, finish);
+  skip_one(start, finish);
+  num_flds_r = num_flds = read_ui32(start, finish);
+  if (resp_code != 0) {
+    skip_one(start, finish);
+    char *const err_begin = start;
+    read_token(start, finish);
+    char *const err_end = start;
+    String e = String(err_begin, (uint32)(err_end - err_begin), &my_charset_bin);
+    if (!e.length()) {
+      e = String("unknown_error", &my_charset_bin);
+    }
+    return set_error(resp_code, e);
+  }
+  cur_row_size = 0;
+  cur_row_offset = start - readbuf.begin();
+  DBG(fprintf(stderr, "[%s] ro=%zu eol=%zu\n",
+    String(readbuf.begin(), readbuf.begin() + response_end_offset)
+      .c_str(),
+    cur_row_offset, response_end_offset));
+  DBG(fprintf(stderr, "RES 0\n"));
+  if (flds.max_element < num_flds)
+  {
+    if (allocate_dynamic(&flds, num_flds))
+      return set_error(-1, "out of memory");
+  }
+  flds.elements = num_flds;
+  return 0;
+}
+
+int
+hstcpcli::get_result(hstresult& result)
+{
+/*
+  readbuf.swap(result.readbuf);
+*/
+  char *const wp = result.readbuf.make_space(response_end_offset);
+  memcpy(wp, readbuf.begin(), response_end_offset);
+  result.readbuf.space_wrote(response_end_offset);
+  result.response_end_offset = response_end_offset;
+  result.num_flds = num_flds;
+  result.cur_row_size = cur_row_size;
+  result.cur_row_offset = cur_row_offset;
+  if (result.flds.max_element < num_flds)
+  {
+    if (allocate_dynamic(&result.flds, num_flds))
+      return set_error(-1, "out of memory");
+  }
+  result.flds.elements = num_flds;
+  return 0;
+}
+
+const string_ref *
+hstcpcli::get_next_row()
+{
+  if (num_flds == 0 || flds.elements < num_flds) {
+    DBG(fprintf(stderr, "GNR NF 0\n"));
+    return 0;
+  }
+  char *start = readbuf.begin() + cur_row_offset;
+  char *const finish = readbuf.begin() + response_end_offset - 1;
+  if (start >= finish) { /* start[0] == nl */
+    DBG(fprintf(stderr, "GNR FIN 0 %p %p\n", start, finish));
+    return 0;
+  }
+  for (size_t i = 0; i < num_flds; ++i) {
+    skip_one(start, finish);
+    char *const fld_begin = start;
+    read_token(start, finish);
+    char *const fld_end = start;
+    char *wp = fld_begin;
+    if (is_null_expression(fld_begin, fld_end)) {
+      /* null */
+      ((string_ref *) flds.buffer)[i] = string_ref();
+    } else {
+      unescape_string(wp, fld_begin, fld_end); /* in-place */
+      ((string_ref *) flds.buffer)[i] = string_ref(fld_begin, wp);
+    }
+  }
+  cur_row_size = start - (readbuf.begin() + cur_row_offset);
+  cur_row_offset = start - readbuf.begin();
+  return (string_ref *) flds.buffer;
+}
+
+const string_ref *
+hstcpcli::get_next_row_from_result(hstresult& result)
+{
+  if (result.num_flds == 0 || result.flds.elements < result.num_flds) {
+    DBG(fprintf(stderr, "GNR NF 0\n"));
+    return 0;
+  }
+  char *start = result.readbuf.begin() + result.cur_row_offset;
+  char *const finish = result.readbuf.begin() + result.response_end_offset - 1;
+  if (start >= finish) { /* start[0] == nl */
+    DBG(fprintf(stderr, "GNR FIN 0 %p %p\n", start, finish));
+    return 0;
+  }
+  for (size_t i = 0; i < result.num_flds; ++i) {
+    skip_one(start, finish);
+    char *const fld_begin = start;
+    read_token(start, finish);
+    char *const fld_end = start;
+    char *wp = fld_begin;
+    if (is_null_expression(fld_begin, fld_end)) {
+      /* null */
+      ((string_ref *) result.flds.buffer)[i] = string_ref();
+    } else {
+      unescape_string(wp, fld_begin, fld_end); /* in-place */
+      ((string_ref *) result.flds.buffer)[i] = string_ref(fld_begin, wp);
+    }
+  }
+  result.cur_row_size =
+    start - (result.readbuf.begin() + result.cur_row_offset);
+  result.cur_row_offset = start - result.readbuf.begin();
+  return (string_ref *) result.flds.buffer;
+}
+
+size_t
+hstcpcli::get_row_size()
+{
+  return cur_row_size;
+}
+
+size_t
+hstcpcli::get_row_size_from_result(hstresult& result)
+{
+  return result.cur_row_size;
+}
+
+void
+hstcpcli::response_buf_remove()
+{
+  if (response_end_offset == 0) {
+    close();
+    set_error(-1, "response_buf_remove: protocol out of sync");
+    return;
+  }
+  readbuf.erase_front(response_end_offset);
+  response_end_offset = 0;
+  --num_req_rcvd;
+  cur_row_offset = 0;
+  num_flds = 0;
+}
+
+void
+hstcpcli::write_error_to_log(
+  const char *func_name,
+  const char *file_name,
+  ulong line_no
+) {
+  if (errno_buf) {
+    time_t cur_time = (time_t) time((time_t*) 0);
+    struct tm lt;
+    struct tm *l_time = localtime_r(&cur_time, &lt);
+    fprintf(stderr,
+      "%04d%02d%02d %02d:%02d:%02d [ERROR] hstcpcli: [%d][%s]"
+      " [%s][%s][%lu] errno=%d\n",
+      l_time->tm_year + 1900, l_time->tm_mon + 1, l_time->tm_mday,
+      l_time->tm_hour, l_time->tm_min, l_time->tm_sec,
+      error_code, error_str.c_ptr_safe(),
+      func_name, file_name, line_no, errno_buf);
+  }
+}
+
+hstcpcli_ptr
+hstcpcli_i::create(const socket_args& args)
+{
+  return hstcpcli_ptr(new hstcpcli(args));
+}
+
+};
+
diff --git a/storage/spider/hs_client/hstcpcli.hpp b/storage/spider/hs_client/hstcpcli.hpp
new file mode 100644
index 00000000..6894716e
--- /dev/null
+++ b/storage/spider/hs_client/hstcpcli.hpp
@@ -0,0 +1,98 @@
+
+// vim:sw=2:ai
+
+/*
+ * Copyright (C) 2010-2011 DeNA Co.,Ltd.. All rights reserved.
+ * Copyright (C) 2011 Kentoku SHIBA
+ * See COPYRIGHT.txt for details.
+ */
+
+#ifndef DENA_HSTCPCLI_HPP
+#define DENA_HSTCPCLI_HPP
+
+#define HANDLERSOCKET_MYSQL_UTIL 1
+
+#include "mysql_version.h"
+#if MYSQL_VERSION_ID < 50500
+#include "mysql_priv.h"
+#include <mysql/plugin.h>
+#else
+#include "sql_priv.h"
+#include "probes_mysql.h"
+#endif
+
+#include "config.hpp"
+#include "socket.hpp"
+#include "string_ref.hpp"
+#include "string_buffer.hpp"
+
+namespace dena {
+
+struct hstcpcli_filter {
+  string_ref filter_type;
+  string_ref op;
+  size_t ff_offset;
+  string_ref val;
+  hstcpcli_filter() : ff_offset(0) { }
+};
+
+struct hstcpcli_i;
+typedef hstcpcli_i *hstcpcli_ptr;
+
+struct hstresult {
+  hstresult();
+  virtual ~hstresult();
+  string_buffer readbuf;
+  size_t response_end_offset;
+  size_t num_flds;
+  size_t cur_row_offset;
+  size_t cur_row_size;
+  DYNAMIC_ARRAY flds;
+};
+
+struct hstcpcli_i {
+  virtual ~hstcpcli_i() { }
+  virtual void close() = 0;
+  virtual int reconnect() = 0;
+  virtual bool stable_point() = 0;
+  virtual void request_buf_auth(const char *secret, const char *typ) = 0;
+  virtual void request_buf_open_index(size_t pst_id, const char *dbn,
+    const char *tbl, const char *idx, const char *retflds,
+    const char *filflds = 0) = 0;
+  virtual void request_buf_exec_generic(size_t pst_id, const string_ref& op,
+    const string_ref *kvs, size_t kvslen, uint32 limit, uint32 skip,
+    const string_ref& mod_op, const string_ref *mvs, size_t mvslen,
+    const hstcpcli_filter *fils = 0, size_t filslen = 0,
+    int invalues_keypart = -1, const string_ref *invalues = 0,
+    size_t invalueslen = 0) = 0; // FIXME: too long
+  virtual size_t request_buf_append(const char *start, const char *finish) = 0;
+  virtual void request_reset() = 0;
+  virtual int request_send() = 0;
+  virtual int response_recv(size_t& num_flds_r) = 0;
+  virtual int get_result(hstresult& result) = 0;
+  virtual const string_ref *get_next_row() = 0;
+  virtual const string_ref *get_next_row_from_result(hstresult& result) = 0;
+  virtual size_t get_row_size() = 0;
+  virtual size_t get_row_size_from_result(hstresult& result) = 0;
+  virtual void response_buf_remove() = 0;
+  virtual int get_error_code() = 0;
+  virtual String& get_error() = 0;
+  virtual void clear_error() = 0;
+  virtual int set_timeout(int send_timeout, int recv_timeout) = 0;
+  virtual size_t get_num_req_bufd() = 0;
+  virtual size_t get_num_req_sent() = 0;
+  virtual size_t get_num_req_rcvd() = 0;
+  virtual size_t get_response_end_offset() = 0;
+  virtual const char *get_readbuf_begin() = 0;
+  virtual const char *get_readbuf_end() = 0;
+  virtual const char *get_writebuf_begin() = 0;
+  virtual size_t get_writebuf_size() = 0;
+  virtual void write_error_to_log(const char *func_name, const char *file_name,
+    ulong line_no) = 0;
+  static hstcpcli_ptr create(const socket_args& args);
+};
+
+};
+
+#endif
+
diff --git a/storage/spider/hs_client/mutex.hpp b/storage/spider/hs_client/mutex.hpp
new file mode 100644
index 00000000..8e331fb6
--- /dev/null
+++ b/storage/spider/hs_client/mutex.hpp
@@ -0,0 +1,48 @@
+
+// vim:sw=2:ai
+
+/*
+ * Copyright (C) 2010-2011 DeNA Co.,Ltd.. All rights reserved.
+ * See COPYRIGHT.txt for details.
+ */
+
+#ifndef DENA_MUTEX_HPP
+#define DENA_MUTEX_HPP
+
+#include "fatal.hpp"
+#include "util.hpp"
+
+namespace dena {
+
+struct condition;
+
+struct mutex : private noncopyable {
+  friend struct condition;
+  mutex() {
+    if (pthread_mutex_init(&mtx, 0) != 0) {
+      fatal_abort("pthread_mutex_init");
+    }
+  }
+  ~mutex() {
+    if (pthread_mutex_destroy(&mtx) != 0) {
+      fatal_abort("pthread_mutex_destroy");
+    }
+  }
+  void lock() const {
+    if (pthread_mutex_lock(&mtx) != 0) {
+      fatal_abort("pthread_mutex_lock");
+    }
+  }
+  void unlock() const {
+    if (pthread_mutex_unlock(&mtx) != 0) {
+      fatal_abort("pthread_mutex_unlock");
+    }
+  }
+ private:
+  mutable pthread_mutex_t mtx;
+};
+
+};
+
+#endif
+
diff --git a/storage/spider/hs_client/socket.cpp b/storage/spider/hs_client/socket.cpp
new file mode 100644
index 00000000..45b8100e
--- /dev/null
+++ b/storage/spider/hs_client/socket.cpp
@@ -0,0 +1,313 @@
+
+// vim:sw=2:ai
+
+/*
+ * Copyright (C) 2010-2011 DeNA Co.,Ltd.. All rights reserved.
+ * Copyright (C) 2011-2017 Kentoku SHIBA
+ * See COPYRIGHT.txt for details.
+ */
+
+#include <my_global.h>
+#include <my_config.h>
+#ifndef __WIN__
+#include <sys/types.h>
+#include <sys/un.h>
+#endif
+
+#include "mysql_version.h"
+#include "hs_compat.h"
+#if MYSQL_VERSION_ID < 50500
+#include "mysql_priv.h"
+#include <mysql/plugin.h>
+#else
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100000
+#include <my_global.h>
+#endif
+#include "sql_priv.h"
+#include "probes_mysql.h"
+#endif
+
+#include "socket.hpp"
+#include "string_util.hpp"
+#include "fatal.hpp"
+
+/*
+struct sockaddr_un {
+  short sun_family;
+  char  sun_path[108];
+};
+*/
+
+namespace dena {
+
+void
+ignore_sigpipe()
+{
+#if defined(SIGPIPE) && !defined(__WIN__)
+  if (signal(SIGPIPE, SIG_IGN) == SIG_ERR) {
+    fatal_abort("SIGPIPE SIG_IGN");
+  }
+#endif
+}
+
+void
+socket_args::set(const config& conf)
+{
+  timeout = (int) conf.get_int("timeout", 600);
+  listen_backlog = (int) conf.get_int("listen_backlog", 256);
+  String node = conf.get_str("host", "");
+  String port = conf.get_str("port", "");
+  if (node.length() || port.length()) {
+    if (family == AF_UNIX || !strcmp(node.c_ptr(), "/")) {
+      set_unix_domain(port.c_ptr());
+    } else {
+      const char *nd = !node.length() ? 0 : node.c_ptr();
+      if (resolve(nd, port.c_ptr()) != 0) {
+        String message("getaddrinfo failed: ", &my_charset_bin);
+        message.reserve(node.length() + sizeof(":") - 1 + port.length());
+        message.append(node);
+        message.q_append(":", sizeof(":") - 1);
+        message.append(port);
+        fatal_abort(message);
+      }
+    }
+  }
+  sndbuf = (int) conf.get_int("sndbuf", 0);
+  rcvbuf = (int) conf.get_int("rcvbuf", 0);
+}
+
+void
+socket_args::set_unix_domain(const char *path)
+{
+#ifndef __WIN__
+  family = AF_UNIX; 
+  addr = sockaddr_storage();
+  addrlen = sizeof(sockaddr_un);
+  sockaddr_un *const ap = reinterpret_cast<sockaddr_un *>(&addr);
+  ap->sun_family = AF_UNIX;
+  strncpy(ap->sun_path, path, sizeof(ap->sun_path) - 1);
+#endif
+}
+
+int
+socket_args::resolve(const char *node, const char *service)
+{
+  const int flags = (node == 0) ? AI_PASSIVE : 0;
+  auto_addrinfo ai;
+  addr = sockaddr_storage();
+  addrlen = 0;
+  const int r = ai.resolve(node, service, flags, family, socktype, protocol);
+  if (r != 0) {
+    return r;
+  }
+  memcpy(&addr, ai.get()->ai_addr, ai.get()->ai_addrlen);
+  addrlen = ai.get()->ai_addrlen;
+  return 0;
+}
+
+int
+socket_set_timeout(auto_file& fd, const socket_args& args, String& err_r)
+{
+  if (!args.nonblocking) {
+#if defined(SO_SNDTIMEO) && defined(SO_RCVTIMEO)
+    if (args.recv_timeout != 0) {
+#ifndef __WIN__
+      struct timeval tv;
+      tv.tv_sec = args.recv_timeout;
+      tv.tv_usec = 0;
+#else
+      int tv = args.recv_timeout * 1000;
+#endif
+      if (setsockopt(fd.get(), SOL_SOCKET, SO_RCVTIMEO,
+#ifndef __WIN__
+          (const void *) &tv,
+#else
+          (const char *) &tv,
+#endif
+          sizeof(tv)) != 0) {
+        return errno_string("setsockopt SO_RCVTIMEO", errno, err_r);
+      }
+    }
+    if (args.send_timeout != 0) {
+#ifndef __WIN__
+      struct timeval tv;
+      tv.tv_sec = args.send_timeout;
+      tv.tv_usec = 0;
+#else
+      int tv = args.send_timeout * 1000;
+#endif
+      if (setsockopt(fd.get(), SOL_SOCKET, SO_SNDTIMEO,
+#ifndef __WIN__
+          (const void *) &tv,
+#else
+          (const char *) &tv,
+#endif
+          sizeof(tv)) != 0) {
+        return errno_string("setsockopt SO_SNDTIMEO", errno, err_r);
+      }
+    }
+#endif
+  }
+  return 0;
+}
+
+int
+socket_set_options(auto_file& fd, const socket_args& args, String& err_r)
+{
+  if (args.timeout != 0 && !args.nonblocking) {
+#if defined(SO_SNDTIMEO) && defined(SO_RCVTIMEO)
+#ifndef __WIN__
+    struct timeval tv;
+    tv.tv_sec = args.timeout;
+    tv.tv_usec = 0;
+#else
+    int tv = args.timeout * 1000;
+#endif
+    if (setsockopt(fd.get(), SOL_SOCKET, SO_RCVTIMEO,
+#ifndef __WIN__
+        (const void *) &tv,
+#else
+        (const char *) &tv,
+#endif
+        sizeof(tv)) != 0) {
+      return errno_string("setsockopt SO_RCVTIMEO", errno, err_r);
+    }
+#ifndef __WIN__
+    tv.tv_sec = args.timeout;
+    tv.tv_usec = 0;
+#else
+    tv = args.timeout * 1000;
+#endif
+    if (setsockopt(fd.get(), SOL_SOCKET, SO_SNDTIMEO,
+#ifndef __WIN__
+        (const void *) &tv,
+#else
+        (const char *) &tv,
+#endif
+        sizeof(tv)) != 0) {
+      return errno_string("setsockopt SO_RCVTIMEO", errno, err_r);
+    }
+#endif
+  }
+#ifndef __WIN__
+  if (args.nonblocking && fcntl(fd.get(), F_SETFL, O_NONBLOCK) != 0) {
+    return errno_string("fcntl O_NONBLOCK", errno, err_r);
+  }
+#endif
+  if (args.sndbuf != 0) {
+    const int v = args.sndbuf;
+    if (setsockopt(fd.get(), SOL_SOCKET, SO_SNDBUF,
+#ifndef __WIN__
+        (const void *) &v,
+#else
+        (const char *) &v,
+#endif
+        sizeof(v)) != 0) {
+      return errno_string("setsockopt SO_SNDBUF", errno, err_r);
+    }
+  }
+  if (args.rcvbuf != 0) {
+    const int v = args.rcvbuf;
+    if (setsockopt(fd.get(), SOL_SOCKET, SO_RCVBUF,
+#ifndef __WIN__
+        (const void *) &v,
+#else
+        (const char *) &v,
+#endif
+        sizeof(v)) != 0) {
+      return errno_string("setsockopt SO_RCVBUF", errno, err_r);
+    }
+  }
+  return 0;
+}
+
+int
+socket_open(auto_file& fd, const socket_args& args, String& err_r)
+{
+  fd.reset((int) socket(args.family, args.socktype, args.protocol));
+  if (fd.get() < 0) {
+    return errno_string("socket", errno, err_r);
+  }
+  return socket_set_options(fd, args, err_r);
+}
+
+int
+socket_connect(auto_file& fd, const socket_args& args, String& err_r)
+{
+  int r = 0;
+  if ((r = socket_open(fd, args, err_r)) != 0) {
+    return r;
+  }
+  if (connect(fd.get(), reinterpret_cast<const sockaddr *>(&args.addr),
+    args.addrlen) != 0) {
+    if (!args.nonblocking
+#ifndef __WIN__
+      || errno != EINPROGRESS
+#endif
+    ) {
+      return errno_string("connect", errno, err_r);
+    }
+  }
+  return 0;
+}
+
+int
+socket_bind(auto_file& fd, const socket_args& args, String& err_r)
+{
+  fd.reset((int) socket(args.family, args.socktype, args.protocol));
+  if (fd.get() < 0) {
+    return errno_string("socket", errno, err_r);
+  }
+  if (args.reuseaddr) {
+#ifndef __WIN__
+    if (args.family == AF_UNIX) {
+      const sockaddr_un *const ap =
+        reinterpret_cast<const sockaddr_un *>(&args.addr);
+      if (unlink(ap->sun_path) != 0 && errno != ENOENT) {
+        return errno_string("unlink uds", errno, err_r);
+      }
+    } else {
+#endif
+      int v = 1;
+      if (setsockopt(fd.get(), SOL_SOCKET, SO_REUSEADDR,
+#ifndef __WIN__
+        (const void *) &v,
+#else
+        (const char *) &v,
+#endif
+        sizeof(v)) != 0) {
+        return errno_string("setsockopt SO_REUSEADDR", errno, err_r);
+      }
+#ifndef __WIN__
+    }
+#endif
+  }
+  if (bind(fd.get(), reinterpret_cast<const sockaddr *>(&args.addr),
+    args.addrlen) != 0) {
+    return errno_string("bind", errno, err_r);
+  }
+  if (listen(fd.get(), args.listen_backlog) != 0) {
+    return errno_string("listen", errno, err_r);
+  }
+#ifndef __WIN__
+  if (args.nonblocking && fcntl(fd.get(), F_SETFL, O_NONBLOCK) != 0) {
+    return errno_string("fcntl O_NONBLOCK", errno, err_r);
+  }
+#endif
+  return 0;
+}
+
+int
+socket_accept(int listen_fd, auto_file& fd, const socket_args& args,
+  sockaddr_storage& addr_r, socklen_t& addrlen_r, String& err_r)
+{
+  fd.reset((int) accept(listen_fd, reinterpret_cast<sockaddr *>(&addr_r),
+                        &addrlen_r));
+  if (fd.get() < 0) {
+    return errno_string("accept", errno, err_r);
+  }
+  return socket_set_options(fd, args, err_r);
+}
+
+};
+
diff --git a/storage/spider/hs_client/socket.hpp b/storage/spider/hs_client/socket.hpp
new file mode 100644
index 00000000..a3e6527a
--- /dev/null
+++ b/storage/spider/hs_client/socket.hpp
@@ -0,0 +1,62 @@
+
+// vim:sw=2:ai
+
+/*
+ * Copyright (C) 2010-2011 DeNA Co.,Ltd.. All rights reserved.
+ * Copyright (C) 2011 Kentoku SHIBA
+ * See COPYRIGHT.txt for details.
+ */
+
+#ifndef DENA_SOCKET_HPP
+#define DENA_SOCKET_HPP
+
+#include "mysql_version.h"
+#if MYSQL_VERSION_ID < 50500
+#include "mysql_priv.h"
+#include <mysql/plugin.h>
+#else
+#include "sql_priv.h"
+#include "probes_mysql.h"
+#endif
+
+#include "auto_addrinfo.hpp"
+#include "auto_file.hpp"
+#include "config.hpp"
+
+namespace dena {
+
+struct socket_args {
+  sockaddr_storage addr;
+  socklen_t addrlen;
+  int family;
+  int socktype;
+  int protocol;
+  int timeout;
+  int send_timeout;
+  int recv_timeout;
+  int listen_backlog;
+  bool reuseaddr;
+  bool nonblocking;
+  bool use_epoll;
+  int sndbuf;
+  int rcvbuf;
+  socket_args() : addr(), addrlen(0), family(AF_INET), socktype(SOCK_STREAM),
+    protocol(0), timeout(600), send_timeout(600), recv_timeout(600),
+    listen_backlog(256), reuseaddr(true), nonblocking(false), use_epoll(false),
+    sndbuf(0), rcvbuf(0) { }
+  void set(const config& conf);
+  void set_unix_domain(const char *path);
+  int resolve(const char *node, const char *service);
+};
+
+void ignore_sigpipe();
+int socket_set_timeout(auto_file& fd, const socket_args& args, String& err_r);
+int socket_bind(auto_file& fd, const socket_args& args, String& err_r);
+int socket_connect(auto_file& fd, const socket_args& args, String& err_r);
+int socket_accept(int listen_fd, auto_file& fd, const socket_args& args,
+  sockaddr_storage& addr_r, socklen_t& addrlen_r, String& err_r);
+
+};
+
+#endif
+
diff --git a/storage/spider/hs_client/string_buffer.hpp b/storage/spider/hs_client/string_buffer.hpp
new file mode 100644
index 00000000..c9a60748
--- /dev/null
+++ b/storage/spider/hs_client/string_buffer.hpp
@@ -0,0 +1,146 @@
+
+// vim:sw=2:ai
+
+/*
+ * Copyright (C) 2010-2011 DeNA Co.,Ltd.. All rights reserved.
+ * Copyright (C) 2011 Kentoku SHIBA
+ * See COPYRIGHT.txt for details.
+ */
+
+#ifndef DENA_STRING_BUFFER_HPP
+#define DENA_STRING_BUFFER_HPP
+
+/*
+#include <stdlib.h>
+#include <string.h>
+*/
+
+#include "util.hpp"
+#include "allocator.hpp"
+#include "fatal.hpp"
+
+namespace dena {
+
+struct string_buffer : private noncopyable {
+  string_buffer() : buffer(0), begin_offset(0), end_offset(0), alloc_size(0) { }
+  ~string_buffer() {
+    real_free();
+  }
+  void real_free() {
+    if (alloc_size) {
+      DENA_FREE(buffer);
+      buffer = 0;
+      begin_offset = 0;
+      end_offset = 0;
+      alloc_size = 0;
+    }
+  }
+  size_t real_size() {
+    return alloc_size;
+  }
+  const char *begin() const {
+    return buffer + begin_offset;
+  }
+  const char *end() const {
+    return buffer + end_offset;
+  }
+  char *begin() {
+    return buffer + begin_offset;
+  }
+  char *end() {
+    return buffer + end_offset;
+  }
+  size_t size() const {
+    return end_offset - begin_offset;
+  }
+  void clear() {
+    begin_offset = end_offset = 0;
+  }
+  void resize(size_t len) {
+    if (size() < len) {
+      reserve(len);
+      memset(buffer + end_offset, 0, len - size());
+    }
+    end_offset = begin_offset + len;
+  }
+  void reserve(size_t len) {
+    if (alloc_size >= begin_offset + len) {
+      return;
+    }
+    size_t asz = alloc_size;
+    while (asz < begin_offset + len) {
+      if (asz == 0) {
+        asz = 16;
+      }
+      const size_t asz_n = asz << 1;
+      if (asz_n < asz) {
+        fatal_abort("string_buffer::resize() overflow");
+      }
+      asz = asz_n;
+    }
+    void *const p = DENA_REALLOC(buffer, asz);
+    if (p == 0) {
+      fatal_abort("string_buffer::resize() realloc");
+    }
+    buffer = static_cast<char *>(p);
+    alloc_size = asz;
+  }
+  void erase_front(size_t len) {
+    if (len >= size()) {
+      clear();
+    } else {
+      begin_offset += len;
+    }
+  }
+  char *make_space(size_t len) {
+    reserve(size() + len);
+    return buffer + end_offset;
+  }
+  void space_wrote(size_t len) {
+    len = len < alloc_size - end_offset ? len : alloc_size - end_offset;
+    end_offset += len;
+  }
+  template <size_t N>
+  void append_literal(const char (& str)[N]) {
+    append(str, str + N - 1);
+  }
+  void append(const char *start, const char *finish) {
+    const size_t len = finish - start;
+    reserve(size() + len);
+    memcpy(buffer + end_offset, start, len);
+    end_offset += len;
+  }
+  void append_2(const char *s1, const char *f1, const char *s2,
+    const char *f2) {
+    const size_t l1 = f1 - s1;
+    const size_t l2 = f2 - s2;
+    reserve(end_offset + l1 + l2);
+    memcpy(buffer + end_offset, s1, l1);
+    memcpy(buffer + end_offset + l1, s2, l2);
+    end_offset += l1 + l2;
+  }
+  void swap(string_buffer& sb) {
+    char *tmp_buffer = buffer;
+    size_t tmp_begin_offset = begin_offset;
+    size_t tmp_end_offset = end_offset;
+    size_t tmp_alloc_size = alloc_size;
+    buffer = sb.buffer;
+    begin_offset = sb.begin_offset;
+    end_offset = sb.end_offset;
+    alloc_size = sb.alloc_size;
+    sb.buffer = tmp_buffer;
+    sb.begin_offset = tmp_begin_offset;
+    sb.end_offset = tmp_end_offset;
+    sb.alloc_size = tmp_alloc_size;
+  }
+ private:
+  char *buffer;
+  size_t begin_offset;
+  size_t end_offset;
+  size_t alloc_size;
+};
+
+};
+
+#endif
+
diff --git a/storage/spider/hs_client/string_ref.hpp b/storage/spider/hs_client/string_ref.hpp
new file mode 100644
index 00000000..028c4146
--- /dev/null
+++ b/storage/spider/hs_client/string_ref.hpp
@@ -0,0 +1,106 @@
+
+// vim:sw=2:ai
+
+/*
+ * Copyright (C) 2010-2011 DeNA Co.,Ltd.. All rights reserved.
+ * Copyright (C) 2011 Kentoku SHIBA
+ * See COPYRIGHT.txt for details.
+ */
+
+#ifndef DENA_STRING_REF_HPP
+#define DENA_STRING_REF_HPP
+
+namespace dena {
+
+struct string_wref {
+  typedef char value_type;
+  char *begin() const { return start; }
+  char *end() const { return start + length; }
+  size_t size() const { return length; }
+ private:
+  char *start;
+  size_t length;
+ public:
+  string_wref(char *s = 0, size_t len = 0) : start(s), length(len) { }
+};
+
+struct string_ref {
+  typedef const char value_type;
+  const char *begin() const { return start; }
+  const char *end() const { return start + length; }
+  size_t size() const { return length; }
+  void set(const char *s, size_t len) { start = s; length = len; }
+  void set(const char *s, const char *f) { start = s; length = f - s; }
+ private:
+  const char *start;
+  size_t length;
+ public:
+  string_ref(const char *s = 0, size_t len = 0) : start(s), length(len) { }
+  string_ref(const char *s, const char *f) : start(s), length(f - s) { }
+  string_ref(const string_wref& w) : start(w.begin()), length(w.size()) { }
+};
+
+template <size_t N> inline bool
+operator ==(const string_ref& x, const char (& y)[N]) {
+  return (x.size() == N - 1) && (::memcmp(x.begin(), y, N - 1) == 0);
+}
+
+inline bool
+operator ==(const string_ref& x, const string_ref& y) {
+  return (x.size() == y.size()) &&
+    (::memcmp(x.begin(), y.begin(), x.size()) == 0);
+}
+
+inline bool
+operator !=(const string_ref& x, const string_ref& y) {
+  return (x.size() != y.size()) ||
+    (::memcmp(x.begin(), y.begin(), x.size()) != 0);
+}
+
+struct string_ref_list_wrap {
+  string_ref_list_wrap() {
+    if (SPD_INIT_DYNAMIC_ARRAY2(&string_ref_list, sizeof(string_ref),
+      NULL, 16, 16, MYF(MY_WME)))
+      string_ref_list_init = FALSE;
+    else
+      string_ref_list_init = TRUE;
+  }
+  virtual ~string_ref_list_wrap() {
+    if (string_ref_list_init) delete_dynamic(&string_ref_list); }
+  void clear() {
+    if (string_ref_list_init) string_ref_list.elements = 0; }
+  void push_back(string_ref &e) {
+    if (string_ref_list_init) insert_dynamic(&string_ref_list, (uchar*) &e);
+    return; }
+  size_t size() {
+    return string_ref_list_init ? string_ref_list.elements : 0; }
+  bool resize(size_t new_size) {
+    if (string_ref_list_init) {
+      if (string_ref_list.max_element < new_size && allocate_dynamic(
+        &string_ref_list, new_size)) return TRUE;
+      string_ref_list.elements = new_size;
+      return FALSE;
+    }
+    return TRUE;
+  }
+  bool empty() {
+    return string_ref_list_init ? string_ref_list.elements ?
+      FALSE : TRUE : TRUE; }
+  string_ref &operator [](size_t n) {
+    return ((string_ref *) (string_ref_list.buffer +
+      string_ref_list.size_of_element * n))[0]; }
+  bool string_ref_list_init;
+  DYNAMIC_ARRAY string_ref_list;
+};
+
+inline String *
+q_append_str(String *str, const char *p) {
+  uint32 p_len = strlen(p);
+  if (str->reserve(p_len)) return NULL;
+  str->q_append(p, p_len); return str;
+}
+
+};
+
+#endif
+
diff --git a/storage/spider/hs_client/string_util.cpp b/storage/spider/hs_client/string_util.cpp
new file mode 100644
index 00000000..39934148
--- /dev/null
+++ b/storage/spider/hs_client/string_util.cpp
@@ -0,0 +1,207 @@
+
+// vim:sw=2:ai
+
+/*
+ * Copyright (C) 2010-2011 DeNA Co.,Ltd.. All rights reserved.
+ * Copyright (C) 2011-2017 Kentoku SHIBA
+ * See COPYRIGHT.txt for details.
+ */
+
+#include <my_global.h>
+#include "mysql_version.h"
+#include "hs_compat.h"
+#if MYSQL_VERSION_ID < 50500
+#include "mysql_priv.h"
+#include <mysql/plugin.h>
+#else
+#include "sql_priv.h"
+#include "probes_mysql.h"
+#endif
+
+#include "string_util.hpp"
+
+namespace dena {
+
+string_wref
+get_token(char *& wp, char *wp_end, char delim)
+{
+  char *const wp_begin = wp;
+  char *const p = memchr_char(wp_begin, delim, wp_end - wp_begin);
+  if (p == 0) {
+    wp = wp_end;
+    return string_wref(wp_begin, wp_end - wp_begin);
+  }
+  wp = p + 1;
+  return string_wref(wp_begin, p - wp_begin);
+}
+
+uint32
+atoi_uint32_nocheck(const char *start, const char *finish)
+{
+  uint32 v = 0;
+  for (; start != finish; ++start) {
+    const char c = *start;
+    if (c < '0' || c > '9') {
+      break;
+    }
+    v *= 10;
+    v += (uint32) (c - '0');
+  }
+  return v;
+}
+
+long long
+atoll_nocheck(const char *start, const char *finish)
+{
+  long long v = 0;
+  bool negative = false;
+  if (start != finish) {
+    if (start[0] == '-') {
+      ++start;
+      negative = true;
+    } else if (start[0] == '+') {
+      ++start;
+    }
+  }
+  for (; start != finish; ++start) {
+    const char c = *start;
+    if (c < '0' || c > '9') {
+      break;
+    }
+    v *= 10;
+    if (negative) {
+      v -= (long long) (c - '0');
+    } else {
+      v += (long long) (c - '0');
+    }
+  }
+  return v;
+}
+
+void
+append_uint32(string_buffer& buf, uint32 v)
+{
+  char *const wp = buf.make_space(64);
+  const int len = snprintf(wp, 64, "%lu", static_cast<unsigned long>(v));
+  if (len > 0) {
+    buf.space_wrote(len);
+  }
+}
+
+/*
+String *
+to_stdstring(uint32 v)
+{
+  char buf[64];
+  int str_len;
+  String *str;
+  str_len = snprintf(buf, sizeof(buf), "%lu", static_cast<unsigned long>(v));
+  if ((str = new String(str_len + 1)))
+    str->q_append(buf, str_len);
+  return str;
+}
+*/
+
+int
+errno_string(const char *s, int en, String& err_r)
+{
+  char buf[64];
+  int str_len;
+  str_len = snprintf(buf, sizeof(buf), "%s: %d", s, en);
+  if (!err_r.reserve(str_len + 1))
+    err_r.q_append(buf, str_len);
+  return en;
+}
+
+size_t
+split(char delim, const string_ref& buf, string_ref *parts,
+  size_t parts_len)
+{
+  size_t i = 0;
+  const char *start = buf.begin();
+  const char *const finish = buf.end();
+  for (i = 0; i < parts_len; ++i) {
+    const char *const p = memchr_char(start, delim, finish - start);
+    if (p == 0) {
+      parts[i] = string_ref(start, finish - start);
+      ++i;
+      break;
+    }
+    parts[i] = string_ref(start, p - start);
+    start = p + 1;
+  }
+  const size_t r = i;
+  for (; i < parts_len; ++i) {
+    parts[i] = string_ref();
+  }
+  return r;
+}
+
+size_t
+split(char delim, const string_wref& buf, string_wref *parts,
+  size_t parts_len)
+{
+  size_t i = 0;
+  char *start = buf.begin();
+  char *const finish = buf.end();
+  for (i = 0; i < parts_len; ++i) {
+    char *const p = memchr_char(start, delim, finish - start);
+    if (p == 0) {
+      parts[i] = string_wref(start, finish - start);
+      ++i;
+      break;
+    }
+    parts[i] = string_wref(start, p - start);
+    start = p + 1;
+  }
+  const size_t r = i;
+  for (; i < parts_len; ++i) {
+    parts[i] = string_wref();
+  }
+  return r;
+}
+
+size_t
+split(char delim, const string_ref& buf, DYNAMIC_ARRAY& parts_r)
+{
+  size_t i = 0;
+  const char *start = buf.begin();
+  const char *finish = buf.end();
+  while (true) {
+    const char *p = memchr_char(start, delim, finish - start);
+    if (p == 0) {
+      string_ref param(start, finish - start);
+      insert_dynamic(&parts_r, (uchar *) &param);
+      break;
+    }
+    string_ref param(start, p - start);
+    insert_dynamic(&parts_r, (uchar *) &param);
+    start = p + 1;
+  }
+  const size_t r = i;
+  return r;
+}
+
+size_t
+split(char delim, const string_wref& buf, DYNAMIC_ARRAY& parts_r)
+{
+  size_t i = 0;
+  char *start = buf.begin();
+  char *finish = buf.end();
+  while (true) {
+    char *p = memchr_char(start, delim, finish - start);
+    if (p == 0) {
+      string_wref param(start, finish - start);
+      insert_dynamic(&parts_r, (uchar *) &param);
+      break;
+    }
+    string_wref param(start, p - start);
+    insert_dynamic(&parts_r, (uchar *) &param);
+    start = p + 1;
+  }
+  const size_t r = i;
+  return r;
+}
+
+};
+
diff --git a/storage/spider/hs_client/string_util.hpp b/storage/spider/hs_client/string_util.hpp
new file mode 100644
index 00000000..b886adde
--- /dev/null
+++ b/storage/spider/hs_client/string_util.hpp
@@ -0,0 +1,51 @@
+
+// vim:sw=2:ai
+
+/*
+ * Copyright (C) 2010-2011 DeNA Co.,Ltd.. All rights reserved.
+ * Copyright (C) 2011 Kentoku SHIBA
+ * See COPYRIGHT.txt for details.
+ */
+
+#ifndef DENA_STRING_UTIL_HPP
+#define DENA_STRING_UTIL_HPP
+
+#include "string_buffer.hpp"
+#include "string_ref.hpp"
+
+namespace dena {
+
+inline const char *
+memchr_char(const char *s, int c, size_t n)
+{
+  return static_cast<const char *>(memchr(s, c, n));
+}
+
+inline char *
+memchr_char(char *s, int c, size_t n)
+{
+  return static_cast<char *>(memchr(s, c, n));
+}
+
+string_wref get_token(char *& wp, char *wp_end, char delim);
+uint32 atoi_uint32_nocheck(const char *start, const char *finish);
+/*
+String *to_stdstring(uint32 v);
+*/
+void append_uint32(string_buffer& buf, uint32 v);
+long long atoll_nocheck(const char *start, const char *finish);
+
+int errno_string(const char *s, int en, String& err_r);
+
+size_t split(char delim, const string_ref& buf, string_ref *parts,
+  size_t parts_len);
+size_t split(char delim, const string_wref& buf, string_wref *parts,
+  size_t parts_len);
+size_t split(char delim, const string_ref& buf,
+  DYNAMIC_ARRAY& parts_r);
+size_t split(char delim, const string_wref& buf,
+  DYNAMIC_ARRAY& parts_r);
+};
+
+#endif
+
diff --git a/storage/spider/hs_client/thread.hpp b/storage/spider/hs_client/thread.hpp
new file mode 100644
index 00000000..79fba706
--- /dev/null
+++ b/storage/spider/hs_client/thread.hpp
@@ -0,0 +1,84 @@
+
+// vim:sw=2:ai
+
+/*
+ * Copyright (C) 2010-2011 DeNA Co.,Ltd.. All rights reserved.
+ * Copyright (C) 2011 Kentoku SHIBA
+ * See COPYRIGHT.txt for details.
+ */
+
+#ifndef DENA_THREAD_HPP
+#define DENA_THREAD_HPP
+
+#include "fatal.hpp"
+
+namespace dena {
+
+/*
+template <typename T>
+struct thread : private noncopyable {
+  template <typename Ta> thread(const Ta& arg, size_t stack_sz = 256 * 1024)
+    : obj(arg), thr(0), need_join(false), stack_size(stack_sz) { }
+  template <typename Ta0, typename Ta1> thread(const Ta0& a0,
+    volatile Ta1& a1, size_t stack_sz = 256 * 1024)
+    : obj(a0, a1), thr(0), need_join(false), stack_size(stack_sz) { }
+  ~thread() {
+    join();
+  }
+  void start() {
+    if (!start_nothrow()) {
+      fatal_abort("thread::start");
+    }
+  }
+  bool start_nothrow() {
+    if (need_join) {
+      return need_join;
+    }
+    void *const arg = this;
+    pthread_attr_t attr;
+    if (pthread_attr_init(&attr) != 0) {
+      fatal_abort("pthread_attr_init");
+    }
+    if (pthread_attr_setstacksize(&attr, stack_size) != 0) {
+      fatal_abort("pthread_attr_setstacksize");
+    }
+    const int r = pthread_create(&thr, &attr, thread_main, arg);
+    if (pthread_attr_destroy(&attr) != 0) {
+      fatal_abort("pthread_attr_destroy");
+    }
+    if (r != 0) {
+      return need_join;
+    }
+    need_join = true;
+    return need_join;
+  }
+  void join() {
+    if (!need_join) {
+      return;
+    }
+    int e = 0;
+    if ((e = pthread_join(thr, 0)) != 0) {
+      fatal_abort("pthread_join");
+    }
+    need_join = false;
+  }
+  T& operator *() { return obj; }
+  T *operator ->() { return &obj; }
+ private:
+  static void *thread_main(void *arg) {
+    thread *p = static_cast<thread *>(arg);
+    p->obj();
+    return 0;
+  }
+ private:
+  T obj;
+  pthread_t thr;
+  bool need_join;
+  size_t stack_size;
+};
+*/
+
+};
+
+#endif
+
diff --git a/storage/spider/hs_client/util.hpp b/storage/spider/hs_client/util.hpp
new file mode 100644
index 00000000..93d78cc7
--- /dev/null
+++ b/storage/spider/hs_client/util.hpp
@@ -0,0 +1,25 @@
+
+// vim:sw=2:ai
+
+/*
+ * Copyright (C) 2010 DeNA Co.,Ltd.. All rights reserved.
+ * See COPYRIGHT.txt for details.
+ */
+
+#ifndef DENA_UTIL_HPP
+#define DENA_UTIL_HPP
+
+namespace dena {
+
+/* boost::noncopyable */
+struct noncopyable {
+  noncopyable() { }
+ private:
+  noncopyable(const noncopyable&);
+  noncopyable& operator =(const noncopyable&);
+};
+
+};
+
+#endif
+
diff --git a/storage/spider/mysql-test/spider/bg/include/deinit_child2_1.inc b/storage/spider/mysql-test/spider/bg/include/deinit_child2_1.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/deinit_child2_1.inc
diff --git a/storage/spider/mysql-test/spider/bg/include/deinit_child2_2.inc b/storage/spider/mysql-test/spider/bg/include/deinit_child2_2.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/deinit_child2_2.inc
diff --git a/storage/spider/mysql-test/spider/bg/include/deinit_child2_3.inc b/storage/spider/mysql-test/spider/bg/include/deinit_child2_3.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/deinit_child2_3.inc
diff --git a/storage/spider/mysql-test/spider/bg/include/deinit_child3_1.inc b/storage/spider/mysql-test/spider/bg/include/deinit_child3_1.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/deinit_child3_1.inc
diff --git a/storage/spider/mysql-test/spider/bg/include/deinit_child3_2.inc b/storage/spider/mysql-test/spider/bg/include/deinit_child3_2.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/deinit_child3_2.inc
diff --git a/storage/spider/mysql-test/spider/bg/include/deinit_child3_3.inc b/storage/spider/mysql-test/spider/bg/include/deinit_child3_3.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/deinit_child3_3.inc
diff --git a/storage/spider/mysql-test/spider/bg/include/deinit_master_1.inc b/storage/spider/mysql-test/spider/bg/include/deinit_master_1.inc
new file mode 100644
index 00000000..c19e376d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/deinit_master_1.inc
@@ -0,0 +1 @@
+--source ../../include/deinit_spider.inc
diff --git a/storage/spider/mysql-test/spider/bg/include/deinit_slave1_1.inc b/storage/spider/mysql-test/spider/bg/include/deinit_slave1_1.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/deinit_slave1_1.inc
diff --git a/storage/spider/mysql-test/spider/bg/include/ha_deinit_child2_1.inc b/storage/spider/mysql-test/spider/bg/include/ha_deinit_child2_1.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/ha_deinit_child2_1.inc
diff --git a/storage/spider/mysql-test/spider/bg/include/ha_deinit_child2_2.inc b/storage/spider/mysql-test/spider/bg/include/ha_deinit_child2_2.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/ha_deinit_child2_2.inc
diff --git a/storage/spider/mysql-test/spider/bg/include/ha_deinit_child2_3.inc b/storage/spider/mysql-test/spider/bg/include/ha_deinit_child2_3.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/ha_deinit_child2_3.inc
diff --git a/storage/spider/mysql-test/spider/bg/include/ha_deinit_child3_1.inc b/storage/spider/mysql-test/spider/bg/include/ha_deinit_child3_1.inc
new file mode 100644
index 00000000..c19e376d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/ha_deinit_child3_1.inc
@@ -0,0 +1 @@
+--source ../../include/deinit_spider.inc
diff --git a/storage/spider/mysql-test/spider/bg/include/ha_deinit_child3_2.inc b/storage/spider/mysql-test/spider/bg/include/ha_deinit_child3_2.inc
new file mode 100644
index 00000000..c19e376d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/ha_deinit_child3_2.inc
@@ -0,0 +1 @@
+--source ../../include/deinit_spider.inc
diff --git a/storage/spider/mysql-test/spider/bg/include/ha_deinit_child3_3.inc b/storage/spider/mysql-test/spider/bg/include/ha_deinit_child3_3.inc
new file mode 100644
index 00000000..c19e376d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/ha_deinit_child3_3.inc
@@ -0,0 +1 @@
+--source ../../include/deinit_spider.inc
diff --git a/storage/spider/mysql-test/spider/bg/include/ha_deinit_master_1.inc b/storage/spider/mysql-test/spider/bg/include/ha_deinit_master_1.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/ha_deinit_master_1.inc
diff --git a/storage/spider/mysql-test/spider/bg/include/ha_init_child2_1.inc b/storage/spider/mysql-test/spider/bg/include/ha_init_child2_1.inc
new file mode 100644
index 00000000..26848294
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/ha_init_child2_1.inc
@@ -0,0 +1,8 @@
+let $CHILD2_1_HA_AS_DROP_TABLES=
+  $CHILD2_1_DROP_TABLES;
+let $CHILD2_1_HA_AS_CREATE_TABLES=
+  $CHILD2_1_CREATE_TABLES;
+let $CHILD2_1_HA_AS_DROP_TABLES2=
+  $CHILD2_1_DROP_TABLES2;
+let $CHILD2_1_HA_AS_CREATE_TABLES2=
+  $CHILD2_1_CREATE_TABLES2;
diff --git a/storage/spider/mysql-test/spider/bg/include/ha_init_child2_2.inc b/storage/spider/mysql-test/spider/bg/include/ha_init_child2_2.inc
new file mode 100644
index 00000000..205eaa6f
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/ha_init_child2_2.inc
@@ -0,0 +1,4 @@
+let $CHILD2_2_HA_DROP_TABLES=
+  $CHILD2_2_DROP_TABLES;
+let $CHILD2_2_HA_CREATE_TABLES=
+  $CHILD2_2_CREATE_TABLES;
diff --git a/storage/spider/mysql-test/spider/bg/include/ha_init_child2_3.inc b/storage/spider/mysql-test/spider/bg/include/ha_init_child2_3.inc
new file mode 100644
index 00000000..55cb8583
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/ha_init_child2_3.inc
@@ -0,0 +1,4 @@
+let $CHILD2_3_HA_DROP_TABLES=
+  $CHILD2_3_DROP_TABLES;
+let $CHILD2_3_HA_CREATE_TABLES=
+  $CHILD2_3_CREATE_TABLES;
diff --git a/storage/spider/mysql-test/spider/bg/include/ha_init_child3_1.inc b/storage/spider/mysql-test/spider/bg/include/ha_init_child3_1.inc
new file mode 100644
index 00000000..3ac4f97b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/ha_init_child3_1.inc
@@ -0,0 +1,140 @@
+--let $CHILD3_1_ENGINE_TYPE=Spider
+--let $CHILD3_1_ENGINE=ENGINE=Spider
+--source ../../include/init_spider.inc
+eval INSERT INTO mysql.spider_link_mon_servers
+(db_name, table_name, link_id, sid, server, scheme, host, port, socket,
+ username, password, ssl_ca, ssl_capath, ssl_cert, ssl_cipher, ssl_key,
+ ssl_verify_server_cert, default_file, default_group) VALUES
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_1_SERVER_ID, 's_3_1', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_2_SERVER_ID, 's_3_2', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_3_SERVER_ID, 's_3_3', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL);
+let $CHILD3_1_CHECK_LINK_STATUS=
+  SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+  ORDER BY db_name, table_name, link_id;
+let $CHILD3_1_CHECK_LINK_FAILED_LOG=
+  SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+let $CHILD3_1_SET_RECOVERY_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 2"';
+let $CHILD3_1_SET_OK_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 1"';
+let $CHILD3_1_SET_OK_STATUS_AS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+  database "auto_test_remote auto_test_remote2", lst "1 0"';
+
+let $CHILD3_1_DROP_TABLES_HA_2_1=
+  DROP TABLE IF EXISTS ta_l;
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $CHILD3_1_CREATE_TABLES_HA_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_1_ENGINE $CHILD3_1_CHARSET
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $CHILD3_1_CREATE_TABLES_HA_AS_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_1_ENGINE $CHILD3_1_CHARSET
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $CHILD3_1_CREATE_TABLES_HA_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_1_ENGINE $CHILD3_1_CHARSET
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $CHILD3_1_CREATE_TABLES_HA_AS_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_1_ENGINE $CHILD3_1_CHARSET
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+let $CHILD3_1_DROP_TABLES_HA_P_2_1=
+  DROP TABLE IF EXISTS ta_l2;
+let $CHILD3_1_CREATE_TABLES_HA_P_2_1=
+  CREATE TABLE ta_l2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD3_1_ENGINE $CHILD3_1_CHARSET
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $CHILD3_1_CREATE_TABLES_HA_AS_P_2_1=
+  CREATE TABLE ta_l2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD3_1_ENGINE $CHILD3_1_CHARSET
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $CHILD3_1_SET_RECOVERY_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 2"'
+  );
+let $CHILD3_1_SET_OK_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 1"'
+  );
+let $CHILD3_1_SET_OK_STATUS_AS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "1 0"'
+  );
diff --git a/storage/spider/mysql-test/spider/bg/include/ha_init_child3_2.inc b/storage/spider/mysql-test/spider/bg/include/ha_init_child3_2.inc
new file mode 100644
index 00000000..cf47099f
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/ha_init_child3_2.inc
@@ -0,0 +1,140 @@
+--let $CHILD3_2_ENGINE_TYPE=Spider
+--let $CHILD3_2_ENGINE=ENGINE=Spider
+--source ../../include/init_spider.inc
+eval INSERT INTO mysql.spider_link_mon_servers
+(db_name, table_name, link_id, sid, server, scheme, host, port, socket,
+ username, password, ssl_ca, ssl_capath, ssl_cert, ssl_cipher, ssl_key,
+ ssl_verify_server_cert, default_file, default_group) VALUES
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_1_SERVER_ID, 's_3_1', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_2_SERVER_ID, 's_3_2', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_3_SERVER_ID, 's_3_3', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL);
+let $CHILD3_2_CHECK_LINK_STATUS=
+  SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+  ORDER BY db_name, table_name, link_id;
+let $CHILD3_2_CHECK_LINK_FAILED_LOG=
+  SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+let $CHILD3_2_SET_RECOVERY_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 2"';
+let $CHILD3_2_SET_OK_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 1"';
+let $CHILD3_2_SET_OK_STATUS_AS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+  database "auto_test_remote auto_test_remote2", lst "1 0"';
+
+let $CHILD3_2_DROP_TABLES_HA_2_1=
+  DROP TABLE IF EXISTS ta_l;
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $CHILD3_2_CREATE_TABLES_HA_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_2_ENGINE $CHILD3_2_CHARSET
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $CHILD3_2_CREATE_TABLES_HA_AS_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_2_ENGINE $CHILD3_2_CHARSET
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $CHILD3_2_CREATE_TABLES_HA_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_2_ENGINE $CHILD3_2_CHARSET
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $CHILD3_2_CREATE_TABLES_HA_AS_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_2_ENGINE $CHILD3_2_CHARSET
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+let $CHILD3_2_DROP_TABLES_HA_P_2_1=
+  DROP TABLE IF EXISTS ta_l2;
+let $CHILD3_2_CREATE_TABLES_HA_P_2_1=
+  CREATE TABLE ta_l2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD3_2_ENGINE $CHILD3_2_CHARSET
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $CHILD3_2_CREATE_TABLES_HA_AS_P_2_1=
+  CREATE TABLE ta_l2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD3_2_ENGINE $CHILD3_2_CHARSET
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $CHILD3_2_SET_RECOVERY_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 2"'
+  );
+let $CHILD3_2_SET_OK_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 1"'
+  );
+let $CHILD3_2_SET_OK_STATUS_AS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "1 0"'
+  );
diff --git a/storage/spider/mysql-test/spider/bg/include/ha_init_child3_3.inc b/storage/spider/mysql-test/spider/bg/include/ha_init_child3_3.inc
new file mode 100644
index 00000000..094d26b6
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/ha_init_child3_3.inc
@@ -0,0 +1,140 @@
+--let $CHILD3_3_ENGINE_TYPE=Spider
+--let $CHILD3_3_ENGINE=ENGINE=Spider
+--source ../../include/init_spider.inc
+eval INSERT INTO mysql.spider_link_mon_servers
+(db_name, table_name, link_id, sid, server, scheme, host, port, socket,
+ username, password, ssl_ca, ssl_capath, ssl_cert, ssl_cipher, ssl_key,
+ ssl_verify_server_cert, default_file, default_group) VALUES
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_1_SERVER_ID, 's_3_1', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_2_SERVER_ID, 's_3_2', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_3_SERVER_ID, 's_3_3', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL);
+let $CHILD3_3_CHECK_LINK_STATUS=
+  SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+  ORDER BY db_name, table_name, link_id;
+let $CHILD3_3_CHECK_LINK_FAILED_LOG=
+  SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+let $CHILD3_3_SET_RECOVERY_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 2"';
+let $CHILD3_3_SET_OK_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 1"';
+let $CHILD3_3_SET_OK_STATUS_AS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+  database "auto_test_remote auto_test_remote2", lst "1 0"';
+
+let $CHILD3_3_DROP_TABLES_HA_2_1=
+  DROP TABLE IF EXISTS ta_l;
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $CHILD3_3_CREATE_TABLES_HA_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_3_ENGINE $CHILD3_3_CHARSET
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $CHILD3_3_CREATE_TABLES_HA_AS_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_3_ENGINE $CHILD3_3_CHARSET
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $CHILD3_3_CREATE_TABLES_HA_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_3_ENGINE $CHILD3_3_CHARSET
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $CHILD3_3_CREATE_TABLES_HA_AS_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_3_ENGINE $CHILD3_3_CHARSET
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+let $CHILD3_3_DROP_TABLES_HA_P_2_1=
+  DROP TABLE IF EXISTS ta_l2;
+let $CHILD3_3_CREATE_TABLES_HA_P_2_1=
+  CREATE TABLE ta_l2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD3_3_ENGINE $CHILD3_3_CHARSET
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $CHILD3_3_CREATE_TABLES_HA_AS_P_2_1=
+  CREATE TABLE ta_l2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD3_3_ENGINE $CHILD3_3_CHARSET
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $CHILD3_3_SET_RECOVERY_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 2"'
+  );
+let $CHILD3_3_SET_OK_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 1"'
+  );
+let $CHILD3_3_SET_OK_STATUS_AS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "1 0"'
+  );
diff --git a/storage/spider/mysql-test/spider/bg/include/ha_init_master_1.inc b/storage/spider/mysql-test/spider/bg/include/ha_init_master_1.inc
new file mode 100644
index 00000000..78797d80
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/ha_init_master_1.inc
@@ -0,0 +1,105 @@
+eval INSERT INTO mysql.spider_link_mon_servers
+(db_name, table_name, link_id, sid, server, scheme, host, port, socket,
+ username, password, ssl_ca, ssl_capath, ssl_cert, ssl_cipher, ssl_key,
+ ssl_verify_server_cert, default_file, default_group) VALUES
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_1_SERVER_ID, 's_3_1', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_2_SERVER_ID, 's_3_2', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_3_SERVER_ID, 's_3_3', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL);
+let $MASTER_1_CHECK_LINK_STATUS=
+  SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+  ORDER BY db_name, table_name, link_id;
+let $MASTER_1_CHECK_LINK_FAILED_LOG=
+  SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+let $MASTER_1_SET_RECOVERY_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 2"';
+let $MASTER_1_SET_OK_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 1"';
+let $MASTER_1_SET_OK_STATUS_AS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+  database "auto_test_remote auto_test_remote2", lst "1 0"';
+let $MASTER_1_COPY_TABLES_2_1=
+  SELECT spider_copy_tables('ta_l', '0', '1');
+
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT_HA_2_1=
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $MASTER_1_COMMENT_HA_AS_2_1=
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT_HA_2_1=
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $MASTER_1_COMMENT_HA_AS_2_1=
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+let $MASTER_1_COMMENT_HA_P_2_1=
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $MASTER_1_COMMENT_HA_AS_P_2_1=
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $MASTER_1_SET_RECOVERY_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 2"'
+  );
+let $MASTER_1_SET_OK_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 1"'
+  );
+let $MASTER_1_SET_OK_STATUS_AS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "1 0"'
+  );
+let $MASTER_1_COPY_TABLES_P_2_1=
+  SELECT spider_copy_tables('ta_l2#P#pt2', '0', '1');
+let $MASTER_1_CHECK_HA_STATUS=
+  SHOW STATUS LIKE 'Spider_mon_table_cache_version%';
+let $MASTER_1_CHANGE_HA_MON=
+  SELECT spider_flush_table_mon_cache();
diff --git a/storage/spider/mysql-test/spider/bg/include/hs_deinit_child2_1.inc b/storage/spider/mysql-test/spider/bg/include/hs_deinit_child2_1.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/hs_deinit_child2_1.inc
diff --git a/storage/spider/mysql-test/spider/bg/include/hs_deinit_child2_2.inc b/storage/spider/mysql-test/spider/bg/include/hs_deinit_child2_2.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/hs_deinit_child2_2.inc
diff --git a/storage/spider/mysql-test/spider/bg/include/hs_deinit_child2_3.inc b/storage/spider/mysql-test/spider/bg/include/hs_deinit_child2_3.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/hs_deinit_child2_3.inc
diff --git a/storage/spider/mysql-test/spider/bg/include/hs_deinit_master_1.inc b/storage/spider/mysql-test/spider/bg/include/hs_deinit_master_1.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/hs_deinit_master_1.inc
diff --git a/storage/spider/mysql-test/spider/bg/include/hs_init_child2_1.inc b/storage/spider/mysql-test/spider/bg/include/hs_init_child2_1.inc
new file mode 100644
index 00000000..ee006858
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/hs_init_child2_1.inc
@@ -0,0 +1,24 @@
+let $CHILD2_1_HS_DROP_TABLES=
+  DROP TABLE IF EXISTS hs_r;
+let $CHILD2_1_HS_CREATE_TABLES=
+  CREATE TABLE hs_r (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    d INT DEFAULT 11,
+    PRIMARY KEY(a)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_HS_SELECT_TABLES=
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s'), d FROM hs_r ORDER BY a;
+let $CHILD2_1_HS_DROP_TABLES2=
+  DROP TABLE IF EXISTS hs_r2;
+let $CHILD2_1_HS_CREATE_TABLES2=
+  CREATE TABLE hs_r2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    d INT DEFAULT 11,
+    PRIMARY KEY(a)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_HS_SELECT_TABLES2=
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s'), d FROM hs_r2 ORDER BY a;
diff --git a/storage/spider/mysql-test/spider/bg/include/hs_init_child2_2.inc b/storage/spider/mysql-test/spider/bg/include/hs_init_child2_2.inc
new file mode 100644
index 00000000..1c5a02d5
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/hs_init_child2_2.inc
@@ -0,0 +1,12 @@
+let $CHILD2_2_HS_DROP_TABLES=
+  DROP TABLE IF EXISTS hs_r3;
+let $CHILD2_2_HS_CREATE_TABLES=
+  CREATE TABLE hs_r3 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    d INT DEFAULT 11,
+    PRIMARY KEY(a)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+let $CHILD2_2_HS_SELECT_TABLES=
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s'), d FROM hs_r3 ORDER BY a;
diff --git a/storage/spider/mysql-test/spider/bg/include/hs_init_child2_3.inc b/storage/spider/mysql-test/spider/bg/include/hs_init_child2_3.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/hs_init_child2_3.inc
diff --git a/storage/spider/mysql-test/spider/bg/include/hs_init_master_1.inc b/storage/spider/mysql-test/spider/bg/include/hs_init_master_1.inc
new file mode 100644
index 00000000..a43e9956
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/hs_init_master_1.inc
@@ -0,0 +1,12 @@
+let $MASTER_1_HS_COMMENT_TMP=
+  COMMENT='';
+let $MASTER_1_HS_COMMENT_2_1=
+  COMMENT='srv "s_2_1", table "hs_r", uhr "1", uhw "1", hrp "$CHILD2_1_HSRPORT", hwp "$CHILD2_1_HSWPORT", hwr "0"';
+let $MASTER_1_HS_COMMENT_P_2_1=
+  COMMENT='uhr "1", uhw "1", hwr "0"'
+  PARTITION BY RANGE(a) (
+    PARTITION pt1 VALUES LESS THAN (4)
+    COMMENT='srv "s_2_1", table "hs_r2", hrp "$CHILD2_1_HSRPORT", hwp "$CHILD2_1_HSWPORT"',
+    PARTITION pt2 VALUES LESS THAN MAXVALUE
+    COMMENT='srv "s_2_2", table "hs_r3", hrp "$CHILD2_2_HSRPORT", hwp "$CHILD2_2_HSWPORT"'
+  );
diff --git a/storage/spider/mysql-test/spider/bg/include/init_child2_1.inc b/storage/spider/mysql-test/spider/bg/include/init_child2_1.inc
new file mode 100644
index 00000000..611ce601
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/init_child2_1.inc
@@ -0,0 +1,175 @@
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS ta_r;
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE ta_r (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a),
+    KEY idx1(b)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_SELECT_TABLES=
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_r ORDER BY a;
+let $CHILD2_1_DROP_TABLES2=
+  DROP TABLE IF EXISTS ta_r2;
+let $CHILD2_1_CREATE_TABLES2=
+  CREATE TABLE ta_r2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_SELECT_TABLES2=
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_r2 ORDER BY a;
+let $CHILD2_1_DROP_TABLES3=
+  DROP TABLE IF EXISTS ta_r_no_idx;
+let $CHILD2_1_CREATE_TABLES3=
+  CREATE TABLE ta_r_no_idx (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_SELECT_TABLES3=
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_r_no_idx ORDER BY a;
+let $CHILD2_1_DROP_TABLES4=
+  DROP TABLE IF EXISTS ta_r_auto_inc;
+let $CHILD2_1_CREATE_TABLES4=
+  CREATE TABLE ta_r_auto_inc (
+    a INT AUTO_INCREMENT,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_SELECT_TABLES4=
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_r_auto_inc
+  ORDER BY a;
+let $CHILD2_1_DROP_TABLES5=
+  DROP TABLE IF EXISTS ta_r_int;
+let $CHILD2_1_CREATE_TABLES5=
+  CREATE TABLE ta_r_int (
+    a INT AUTO_INCREMENT,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    PRIMARY KEY(a),
+    KEY idx1(b),
+    KEY idx2(c)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_SELECT_TABLES5=
+  SELECT a, b, c FROM ta_r_int ORDER BY a;
+let $CHILD2_1_DROP_TABLES6=
+  DROP TABLE IF EXISTS ta_r_3;
+let $CHILD2_1_CREATE_TABLES6=
+  CREATE TABLE ta_r_3 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_SELECT_TABLES6=
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_r_3 ORDER BY a;
+let $CHILD2_1_DROP_FT_TABLES=
+  DROP TABLE IF EXISTS ft_r;
+let $CHILD2_1_CREATE_FT_TABLES=
+  CREATE TABLE ft_r (
+    a INT DEFAULT 0,
+    b TEXT,
+    c TEXT,
+    d TEXT,
+    PRIMARY KEY(a),
+    FULLTEXT INDEX ft_idx1(b),
+    FULLTEXT INDEX ft_idx2(c)
+  ) $CHILD2_1_FT_ENGINE $CHILD2_1_FT_CHARSET;
+let $CHILD2_1_SELECT_FT_TABLES=
+  SELECT a, b, c, d FROM ft_r ORDER BY a;
+let $CHILD2_1_DROP_FT_TABLES2=
+  DROP TABLE IF EXISTS ft_r2;
+let $CHILD2_1_CREATE_FT_TABLES2=
+  CREATE TABLE ft_r2 (
+    a INT DEFAULT 0,
+    b TEXT,
+    c TEXT,
+    d TEXT,
+    PRIMARY KEY(a),
+    FULLTEXT INDEX ft_idx1(b),
+    FULLTEXT INDEX ft_idx2(c)
+  ) $CHILD2_1_FT_ENGINE $CHILD2_1_FT_CHARSET;
+let $CHILD2_1_SELECT_FT_TABLES2=
+  SELECT a, b, c, d FROM ft_r2 ORDER BY a;
+let $CHILD2_1_DROP_GM_TABLES=
+  DROP TABLE IF EXISTS gm_r;
+let $CHILD2_1_CREATE_GM_TABLES=
+  CREATE TABLE gm_r (
+    a INT DEFAULT 0,
+    b GEOMETRY NOT NULL,
+    c GEOMETRY NOT NULL,
+    PRIMARY KEY(a),
+    SPATIAL INDEX sp_idx1(b),
+    SPATIAL INDEX sp_idx2(c)
+  ) $CHILD2_1_GM_ENGINE $CHILD2_1_GM_CHARSET;
+let $CHILD2_1_SELECT_GM_TABLES=
+  SELECT a, b, c FROM gm_r ORDER BY a;
+let $CHILD2_1_DROP_GM_TABLES2=
+  DROP TABLE IF EXISTS gm_r2;
+let $CHILD2_1_CREATE_GM_TABLES2=
+  CREATE TABLE gm_r2 (
+    a INT DEFAULT 0,
+    b GEOMETRY NOT NULL,
+    c GEOMETRY NOT NULL,
+    PRIMARY KEY(a),
+    SPATIAL INDEX sp_idx1(b),
+    SPATIAL INDEX sp_idx2(c)
+  ) $CHILD2_1_GM_ENGINE $CHILD2_1_GM_CHARSET;
+let $CHILD2_1_SELECT_GM_TABLES2=
+  SELECT a, b, c FROM gm_r2 ORDER BY a;
+let $CHILD2_1_DROP_LOCK_TABLES1=
+  DROP TABLE IF EXISTS t1_1;
+let $CHILD2_1_CREATE_LOCK_TABLES1=
+  CREATE TABLE t1_1 (
+    id int(11) NOT NULL,
+    PRIMARY KEY (id)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_DROP_LOCK_TABLES2=
+  DROP TABLE IF EXISTS t2_2;
+let $CHILD2_1_CREATE_LOCK_TABLES2=
+  CREATE TABLE t2_2 (
+    id int(11) NOT NULL,
+    PRIMARY KEY (id)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_DROP_INCREMENT_TABLES1=
+  DROP TABLE IF EXISTS t1_1;
+let $CHILD2_1_CREATE_INCREMENT_TABLES1=
+  CREATE TABLE t1_1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_SELECT_INCREMENT_TABLES1=
+  SELECT id FROM t1_1 ORDER BY id;
+let $CHILD2_1_DROP_TEXT_PK_TABLES1=
+  DROP TABLE IF EXISTS t1;
+let $CHILD2_1_CREATE_TEXT_PK_TABLES1=
+  CREATE TABLE t1 (
+    a VARCHAR(255),
+    PRIMARY KEY (a)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET2;
+let $CHILD2_1_SELECT_TEXT_PK_TABLES1=
+  SELECT a FROM t1 ORDER BY a;
+let $CHILD2_1_DROP_TEXT_KEY_TABLES1=
+  DROP TABLE IF EXISTS t1;
+let $CHILD2_1_CREATE_TEXT_KEY_TABLES1=
+  CREATE TABLE t1 (
+    a VARCHAR(255),
+    b VARCHAR(255),
+    c VARCHAR(255),
+    KEY idx1(a,b),
+    KEY idx2(b),
+    PRIMARY KEY(c)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_SELECT_TEXT_KEY_TABLES1=
+  SELECT a, b FROM t1 ORDER BY a, b;
+let $CHILD2_1_AUTO_INCREMENT_INCREMENT1=
+  SET GLOBAL AUTO_INCREMENT_INCREMENT = 1;
+let $CHILD2_1_AUTO_INCREMENT_INCREMENT2=
+  SET GLOBAL AUTO_INCREMENT_INCREMENT = 4;
+let $CHILD2_1_AUTO_INCREMENT_OFFSET1=
+  SET GLOBAL AUTO_INCREMENT_OFFSET = 1;
+let $CHILD2_1_AUTO_INCREMENT_OFFSET2=
+  SET GLOBAL AUTO_INCREMENT_OFFSET = 2;
diff --git a/storage/spider/mysql-test/spider/bg/include/init_child2_2.inc b/storage/spider/mysql-test/spider/bg/include/init_child2_2.inc
new file mode 100644
index 00000000..9f0b5e2f
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/init_child2_2.inc
@@ -0,0 +1,80 @@
+let $CHILD2_2_DROP_TABLES=
+  DROP TABLE IF EXISTS ta_r3;
+let $CHILD2_2_CREATE_TABLES=
+  CREATE TABLE ta_r3 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+let $CHILD2_2_DROP_TABLES5=
+  DROP TABLE IF EXISTS ta_r_int;
+let $CHILD2_2_CREATE_TABLES5=
+  CREATE TABLE ta_r_int (
+    a INT AUTO_INCREMENT,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    PRIMARY KEY(a),
+    KEY idx1(b),
+    KEY idx2(c)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+let $CHILD2_2_SELECT_TABLES=
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_r3 ORDER BY a;
+let $CHILD2_2_DROP_FT_TABLES=
+  DROP TABLE IF EXISTS ft_r3;
+let $CHILD2_2_CREATE_FT_TABLES=
+  CREATE TABLE ft_r3 (
+    a INT DEFAULT 0,
+    b TEXT,
+    c TEXT,
+    d TEXT,
+    PRIMARY KEY(a),
+    FULLTEXT INDEX ft_idx1(b),
+    FULLTEXT INDEX ft_idx2(c)
+  ) $CHILD2_2_FT_ENGINE $CHILD2_2_FT_CHARSET;
+let $CHILD2_2_SELECT_FT_TABLES=
+  SELECT a, b, c, d FROM ft_r3 ORDER BY a;
+let $CHILD2_2_DROP_GM_TABLES=
+  DROP TABLE IF EXISTS gm_r3;
+let $CHILD2_2_CREATE_GM_TABLES=
+  CREATE TABLE gm_r3 (
+    a INT DEFAULT 0,
+    b GEOMETRY NOT NULL,
+    c GEOMETRY NOT NULL,
+    PRIMARY KEY(a),
+    SPATIAL INDEX sp_idx1(b),
+    SPATIAL INDEX sp_idx2(c)
+  ) $CHILD2_2_GM_ENGINE $CHILD2_2_GM_CHARSET;
+let $CHILD2_2_SELECT_GM_TABLES=
+  SELECT a, b, c FROM gm_r3 ORDER BY a;
+let $CHILD2_2_DROP_LOCK_TABLES1=
+  DROP TABLE IF EXISTS t1_2;
+let $CHILD2_2_CREATE_LOCK_TABLES1=
+  CREATE TABLE t1_2 (
+    id int(11) NOT NULL,
+    PRIMARY KEY (id)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+let $CHILD2_2_DROP_LOCK_TABLES2=
+  DROP TABLE IF EXISTS t2_1;
+let $CHILD2_2_CREATE_LOCK_TABLES2=
+  CREATE TABLE t2_1 (
+    id int(11) NOT NULL,
+    PRIMARY KEY (id)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+let $CHILD2_2_DROP_INCREMENT_TABLES1=
+  DROP TABLE IF EXISTS t1_2;
+let $CHILD2_2_CREATE_INCREMENT_TABLES1=
+  CREATE TABLE t1_2 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+let $CHILD2_2_SELECT_INCREMENT_TABLES1=
+  SELECT id FROM t1_2 ORDER BY id;
+let $CHILD2_2_AUTO_INCREMENT_INCREMENT1=
+  SET GLOBAL AUTO_INCREMENT_INCREMENT = 1;
+let $CHILD2_2_AUTO_INCREMENT_INCREMENT2=
+  SET GLOBAL AUTO_INCREMENT_INCREMENT = 4;
+let $CHILD2_2_AUTO_INCREMENT_OFFSET1=
+  SET GLOBAL AUTO_INCREMENT_OFFSET = 1;
+let $CHILD2_2_AUTO_INCREMENT_OFFSET2=
+  SET GLOBAL AUTO_INCREMENT_OFFSET = 3;
diff --git a/storage/spider/mysql-test/spider/bg/include/init_child2_3.inc b/storage/spider/mysql-test/spider/bg/include/init_child2_3.inc
new file mode 100644
index 00000000..05dbb1c3
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/init_child2_3.inc
@@ -0,0 +1,11 @@
+let $CHILD2_3_DROP_TABLES=
+  DROP TABLE IF EXISTS ta_r4;
+let $CHILD2_3_CREATE_TABLES=
+  CREATE TABLE ta_r4 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD2_3_ENGINE $CHILD2_3_CHARSET;
+let $CHILD2_3_SELECT_TABLES=
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_r4 ORDER BY a;
diff --git a/storage/spider/mysql-test/spider/bg/include/init_child3_1.inc b/storage/spider/mysql-test/spider/bg/include/init_child3_1.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/init_child3_1.inc
diff --git a/storage/spider/mysql-test/spider/bg/include/init_child3_2.inc b/storage/spider/mysql-test/spider/bg/include/init_child3_2.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/init_child3_2.inc
diff --git a/storage/spider/mysql-test/spider/bg/include/init_child3_3.inc b/storage/spider/mysql-test/spider/bg/include/init_child3_3.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/init_child3_3.inc
diff --git a/storage/spider/mysql-test/spider/bg/include/init_master_1.inc b/storage/spider/mysql-test/spider/bg/include/init_master_1.inc
new file mode 100644
index 00000000..d6e302a6
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/init_master_1.inc
@@ -0,0 +1,194 @@
+--source ../../include/init_spider.inc
+SET spider_internal_sql_log_off= 0;
+SET spider_bgs_mode= 1;
+SET spider_bgs_first_read= 2;
+SET spider_bgs_second_read= 2;
+SET spider_split_read= 2;
+SET spider_conn_recycle_mode= 2;
+SET spider_multi_split_read= 1;
+SET spider_reset_sql_alloc= 0;
+SET spider_bulk_update_size= 40;
+SET spider_direct_order_limit= 10000;
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT_2_1=
+    COMMENT='database "auto_test_remote", table "ta_r"'
+    CONNECTION='host "localhost", port "$CHILD2_1_MYPORT", user "root",
+    password ""';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT_2_1=
+    COMMENT='database "auto_test_remote", table "ta_r"'
+    CONNECTION='host "localhost", socket "$CHILD2_1_MYSOCK", user "root",
+    password ""';
+}
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT2_2_1=
+    COMMENT='database "auto_test_remote", table "ta_r_no_idx"'
+    CONNECTION='host "localhost", port "$CHILD2_1_MYPORT", user "root",
+    password "", prt "2000000"';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT2_2_1=
+    COMMENT='database "auto_test_remote", table "ta_r_no_idx"'
+    CONNECTION='host "localhost", socket "$CHILD2_1_MYSOCK", user "root",
+    password "", prt "2000000"';
+}
+let $MASTER_1_COMMENT_P_2_1=
+  COMMENT='table "ta_r3"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1", table "ta_r2",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_2", priority "1000001"'
+  );
+let $MASTER_1_COMMENT2_P_2_1=
+  COMMENT='table "ta_r3"'
+  PARTITION BY RANGE(a) (
+    PARTITION pt1 VALUES LESS THAN (4) COMMENT='srv "s_2_1",
+    table "ta_r2", priority "1000"',
+    PARTITION pt2 VALUES LESS THAN MAXVALUE
+    COMMENT='srv "s_2_2", priority "1000001"'
+  );
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT3_2_1=
+    COMMENT='database "auto_test_remote", table "ta_r_auto_inc"'
+    CONNECTION='host "localhost", port "$CHILD2_1_MYPORT", user "root",
+    password ""';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT3_2_1=
+    COMMENT='database "auto_test_remote", table "ta_r_auto_inc"'
+    CONNECTION='host "localhost", socket "$CHILD2_1_MYSOCK", user "root",
+    password ""';
+}
+let $MASTER_1_COMMENT3_P_2_1=
+  COMMENT='table "ta_r_int"'
+  PARTITION BY LIST(MOD(a, 2)) (
+    PARTITION pt1 VALUES IN (0)
+    COMMENT='srv "s_2_1", priority "1000"',
+    PARTITION pt2 VALUES IN (1)
+    COMMENT='srv "s_2_2", priority "1000001"'
+  );
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT4_2_1=
+    COMMENT='database "auto_test_remote", table "ta_r_int"'
+    CONNECTION='host "localhost", port "$CHILD2_1_MYPORT", user "root",
+    password ""';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT4_2_1=
+    COMMENT='database "auto_test_remote", table "ta_r_int"'
+    CONNECTION='host "localhost", socket "$CHILD2_1_MYSOCK", user "root",
+    password ""';
+}
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT5_2_1=
+    COMMENT='database "auto_test_remote", table "ta_r_3"'
+    CONNECTION='host "localhost", port "$CHILD2_1_MYPORT", user "root",
+    password ""';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT5_2_1=
+    COMMENT='database "auto_test_remote", table "ta_r_3"'
+    CONNECTION='host "localhost", socket "$CHILD2_1_MYSOCK", user "root",
+    password ""';
+}
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT_FT_2_1=
+    COMMENT='database "auto_test_remote", table "ft_r"'
+    CONNECTION='host "localhost", port "$CHILD2_1_MYPORT", user "root",
+    password ""';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT_FT_2_1=
+    COMMENT='database "auto_test_remote", table "ft_r"'
+    CONNECTION='host "localhost", socket "$CHILD2_1_MYSOCK", user "root",
+    password ""';
+}
+let $MASTER_1_COMMENT2_FT_P_2_1=
+  COMMENT='table "ft_r3"'
+  PARTITION BY RANGE(a) (
+    PARTITION pt1 VALUES LESS THAN (4) COMMENT='srv "s_2_1",
+    table "ft_r2", priority "1000"',
+    PARTITION pt2 VALUES LESS THAN MAXVALUE
+    COMMENT='srv "s_2_2", priority "1000001"'
+  );
+let $MASTER_1_COMMENT_GM_2_1=
+  COMMENT='srv "s_2_1", table "gm_r"';
+let $MASTER_1_COMMENT2_GM_P_2_1=
+  COMMENT='table "gm_r3"'
+  PARTITION BY RANGE(a) (
+    PARTITION pt1 VALUES LESS THAN (4) COMMENT='srv "s_2_1",
+    table "gm_r2", priority "1000"',
+    PARTITION pt2 VALUES LESS THAN MAXVALUE
+    COMMENT='srv "s_2_2", priority "1000001"'
+  );
+let $MASTER_1_COMMENT_LOCK1=
+  COMMENT 'tbl "t1_1 t1_2", srv "s_2_1 s_2_2"';
+let $MASTER_1_COMMENT_LOCK2=
+  COMMENT 'tbl "t2_1 t2_2", srv "s_2_2 s_2_1"';
+let $MASTER_1_COMMENT_INCREMENT1_1=
+  COMMENT 'aim "1", tbl "t1_1", srv "s_2_1"';
+let $MASTER_1_COMMENT_INCREMENT1_P_1=
+  COMMENT 'aim "1"'
+  PARTITION BY LIST(MOD(id, 2)) (
+    PARTITION pt1 VALUES IN (0)
+    COMMENT='tbl "t1_1", srv "s_2_1"',
+    PARTITION pt2 VALUES IN (1)
+    COMMENT='tbl "t1_2", srv "s_2_2"'
+  );
+let $MASTER_1_COMMENT_READONLY1_1=
+  COMMENT 'read_only_mode "1", tbl "t1_1", srv "s_2_1"';
+let $MASTER_1_COMMENT_ERROR_MODE1_1=
+  COMMENT 'erm "1", ewm "1", tbl "ter1_1", srv "s_2_1"';
+let $MASTER_1_COMMENT_TEXT_PK1_1=
+  COMMENT 'tbl "t1", srv "s_2_1"';
+let $MASTER_1_COMMENT_TEXT_KEY1_1=
+  COMMENT 'tbl "t1", srv "s_2_1"';
+let $MASTER_1_CHECK_DIRECT_UPDATE_STATUS=
+  SHOW STATUS LIKE 'Spider_direct_update';
+let $MASTER_1_CHECK_DIRECT_DELETE_STATUS=
+  SHOW STATUS LIKE 'Spider_direct_delete';
+let $MASTER_1_CHECK_DIRECT_ORDER_LIMIT_STATUS=
+  SHOW STATUS LIKE 'Spider_direct_order_limit';
+let $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS=
+  SHOW STATUS LIKE 'Spider_direct_aggregate';
+let $MASTER_1_AUTO_INCREMENT_INCREMENT1=
+  SET SESSION AUTO_INCREMENT_INCREMENT = 1 $STR_SEMICOLON
+  SELECT spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 1', '',
+    'srv "s_2_1"') $STR_SEMICOLON
+  SELECT spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 1', '',
+    'srv "s_2_2"');
+let $MASTER_1_AUTO_INCREMENT_INCREMENT2=
+  SET SESSION AUTO_INCREMENT_INCREMENT = 777 $STR_SEMICOLON
+  SELECT spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 4', '',
+    'srv "s_2_1"') $STR_SEMICOLON
+  SELECT spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 4', '',
+    'srv "s_2_2"');
+let $MASTER_1_AUTO_INCREMENT_OFFSET1=
+  SET SESSION AUTO_INCREMENT_OFFSET = 1 $STR_SEMICOLON
+  SELECT spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 1', '',
+    'srv "s_2_1"') $STR_SEMICOLON
+  SELECT spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 1', '',
+    'srv "s_2_2"');
+let $MASTER_1_AUTO_INCREMENT_OFFSET2=
+  SET SESSION AUTO_INCREMENT_OFFSET = 777 $STR_SEMICOLON
+  SELECT spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 2', '',
+    'srv "s_2_1"') $STR_SEMICOLON
+  SELECT spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 3', '',
+    'srv "s_2_2"');
+let $MASTER_1_AUTO_INCREMENT_OFFSET3=
+  SET SESSION AUTO_INCREMENT_OFFSET = 1;
+let $MASTER_1_AUTO_INCREMENT_OFFSET4=
+  SET SESSION AUTO_INCREMENT_OFFSET = 777;
diff --git a/storage/spider/mysql-test/spider/bg/include/init_slave1_1.inc b/storage/spider/mysql-test/spider/bg/include/init_slave1_1.inc
new file mode 100644
index 00000000..73c3c6b9
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/include/init_slave1_1.inc
@@ -0,0 +1,10 @@
+let $SLAVE1_1_COMMENT_INCREMENT1_1=
+  COMMENT '';
+let $SLAVE1_1_COMMENT_INCREMENT1_P_1=
+  COMMENT ''
+  PARTITION BY LIST(MOD(id, 2)) (
+    PARTITION pt1 VALUES IN (0)
+    COMMENT='',
+    PARTITION pt2 VALUES IN (1)
+    COMMENT=''
+  );
diff --git a/storage/spider/mysql-test/spider/bg/my.cnf b/storage/spider/mysql-test/spider/bg/my.cnf
new file mode 100644
index 00000000..246099c6
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/my.cnf
@@ -0,0 +1,176 @@
+# Use default setting for mysqld processes
+!include include/default_mysqld.cnf
+
+[mysqld.1.1]
+loose_handlersocket_port=                20000
+loose_handlersocket_port_wr=             20001
+loose_handlersocket_threads=             2
+loose_handlersocket_threads_wr=          1
+loose_handlersocket_support_merge_table= 0
+loose_handlersocket_direct_update_mode=  2
+loose_handlersocket_unlimited_boundary=  65536
+loose_handlersocket_bulk_insert=         0
+loose_handlersocket_bulk_insert_timeout= 0
+loose_handlersocket_general_log=         1
+loose_handlersocket_timeout=             30
+loose_handlersocket_close_table_interval=2
+open_files_limit=                        4096
+loose_partition=                         1
+
+[mysqld.2.1]
+loose_handlersocket_port=                20002
+loose_handlersocket_port_wr=             20003
+loose_handlersocket_threads=             2
+loose_handlersocket_threads_wr=          1
+loose_handlersocket_support_merge_table= 0
+loose_handlersocket_direct_update_mode=  2
+loose_handlersocket_unlimited_boundary=  65536
+loose_handlersocket_bulk_insert=         0
+loose_handlersocket_bulk_insert_timeout= 0
+loose_handlersocket_general_log=         1
+loose_handlersocket_timeout=             30
+loose_handlersocket_close_table_interval=2
+open_files_limit=                        4096
+
+[mysqld.2.2]
+loose_handlersocket_port=                20004
+loose_handlersocket_port_wr=             20005
+loose_handlersocket_threads=             2
+loose_handlersocket_threads_wr=          1
+loose_handlersocket_support_merge_table= 0
+loose_handlersocket_direct_update_mode=  2
+loose_handlersocket_unlimited_boundary=  65536
+loose_handlersocket_bulk_insert=         0
+loose_handlersocket_bulk_insert_timeout= 0
+loose_handlersocket_general_log=         1
+loose_handlersocket_timeout=             30
+loose_handlersocket_close_table_interval=2
+open_files_limit=                        4096
+
+[mysqld.2.3]
+
+[mysqld.3.1]
+loose_partition=                         1
+
+[mysqld.3.2]
+loose_partition=                         1
+
+[mysqld.3.3]
+loose_partition=                         1
+
+[mysqld.4.1]
+loose_partition=                         1
+
+
+[ENV]
+USE_GEOMETRY_TEST=        1
+USE_FULLTEXT_TEST=        1
+USE_HA_TEST=              1
+USE_GENERAL_LOG=          1
+USE_REPLICATION=          1
+MASTER_1_MYPORT=          @mysqld.1.1.port
+MASTER_1_HSRPORT=         20000
+MASTER_1_HSWPORT=         20001
+MASTER_1_MYSOCK=          @mysqld.1.1.socket
+MASTER_1_ENGINE_TYPE=     Spider
+#MASTER_1_ENGINE_TYPE=     MyISAM
+MASTER_1_ENGINE=          ENGINE=Spider
+MASTER_1_CHARSET=         DEFAULT CHARSET=utf8
+MASTER_1_ENGINE2=         ENGINE=MyISAM
+MASTER_1_CHARSET2=        DEFAULT CHARSET=utf8
+MASTER_1_CHARSET3=        DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci
+SLAVE1_1_MYPORT=          @mysqld.4.1.port
+SLAVE1_1_MYSOCK=          @mysqld.4.1.socket
+SLAVE1_1_ENGINE_TYPE=     MyISAM
+SLAVE1_1_ENGINE=          ENGINE=MyISAM
+SLAVE1_1_CHARSET=         DEFAULT CHARSET=utf8
+USE_CHILD_GROUP2=         1
+OUTPUT_CHILD_GROUP2=      0
+CHILD2_1_MYPORT=          @mysqld.2.1.port
+CHILD2_1_HSRPORT=         20002
+CHILD2_1_HSWPORT=         20003
+CHILD2_1_MYSOCK=          @mysqld.2.1.socket
+CHILD2_1_ENGINE_TYPE=     InnoDB
+CHILD2_1_ENGINE=          ENGINE=InnoDB
+CHILD2_1_CHARSET=         DEFAULT CHARSET=utf8
+CHILD2_1_CHARSET2=        DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci
+CHILD2_2_MYPORT=          @mysqld.2.2.port
+CHILD2_2_HSRPORT=         20004
+CHILD2_2_HSWPORT=         20005
+CHILD2_2_MYSOCK=          @mysqld.2.2.socket
+CHILD2_2_ENGINE_TYPE=     InnoDB
+CHILD2_2_ENGINE=          ENGINE=InnoDB
+CHILD2_2_CHARSET=         DEFAULT CHARSET=utf8
+CHILD2_3_MYPORT=          @mysqld.2.3.port
+CHILD2_3_MYSOCK=          @mysqld.2.3.socket
+CHILD2_3_ENGINE_TYPE=     InnoDB
+CHILD2_3_ENGINE=          ENGINE=InnoDB
+CHILD2_3_CHARSET=         DEFAULT CHARSET=utf8
+CHILD2_1_FT_MYPORT=       @mysqld.1.1.port
+CHILD2_1_FT_MYSOCK=       @mysqld.1.1.socket
+CHILD2_1_FT_ENGINE_TYPE=  MyISAM
+CHILD2_1_FT_ENGINE=       ENGINE=MyISAM
+CHILD2_1_FT_CHARSET=      DEFAULT CHARSET=utf8
+CHILD2_2_FT_MYPORT=       @mysqld.2.2.port
+CHILD2_2_FT_MYSOCK=       @mysqld.2.2.socket
+CHILD2_2_FT_ENGINE_TYPE=  MyISAM
+CHILD2_2_FT_ENGINE=       ENGINE=MyISAM
+CHILD2_2_FT_CHARSET=      DEFAULT CHARSET=utf8
+CHILD2_1_GM_MYPORT=       @mysqld.2.1.port
+CHILD2_1_GM_MYSOCK=       @mysqld.2.1.socket
+CHILD2_1_GM_ENGINE_TYPE=  MyISAM
+CHILD2_1_GM_ENGINE=       ENGINE=MyISAM
+CHILD2_1_GM_CHARSET=      DEFAULT CHARSET=utf8
+CHILD2_2_GM_MYPORT=       @mysqld.2.2.port
+CHILD2_2_GM_MYSOCK=       @mysqld.2.2.socket
+CHILD2_2_GM_ENGINE_TYPE=  MyISAM
+CHILD2_2_GM_ENGINE=       ENGINE=MyISAM
+CHILD2_2_GM_CHARSET=      DEFAULT CHARSET=utf8
+USE_CHILD_GROUP3=         1
+OUTPUT_CHILD_GROUP3=      0
+CHILD3_1_MYPORT=          @mysqld.3.1.port
+CHILD3_1_MYSOCK=          @mysqld.3.1.socket
+CHILD3_1_ENGINE_TYPE=     InnoDB
+CHILD3_1_ENGINE=          ENGINE=InnoDB
+CHILD3_1_CHARSET=         DEFAULT CHARSET=utf8
+CHILD3_2_MYPORT=          @mysqld.3.2.port
+CHILD3_2_MYSOCK=          @mysqld.3.2.socket
+CHILD3_2_ENGINE_TYPE=     InnoDB
+CHILD3_2_ENGINE=          ENGINE=InnoDB
+CHILD3_2_CHARSET=         DEFAULT CHARSET=utf8
+CHILD3_3_MYPORT=          @mysqld.3.3.port
+CHILD3_3_MYSOCK=          @mysqld.3.3.socket
+CHILD3_3_ENGINE_TYPE=     InnoDB
+CHILD3_3_ENGINE=          ENGINE=InnoDB
+CHILD3_3_CHARSET=         DEFAULT CHARSET=utf8
+
+STR_SEMICOLON=            ;
+
+#The followings are set in include/init_xxx.inc files
+# MASTER_1_COMMENT_2_1
+# MASTER_1_COMMENT2_2_1
+# MASTER_1_COMMENT3_2_1
+# MASTER_1_COMMENT4_2_1
+# MASTER_1_COMMENT5_2_1
+# MASTER_1_COMMENT_P_2_1
+# CHILD2_1_DROP_TABLES
+# CHILD2_1_CREATE_TABLES
+# CHILD2_1_SELECT_TABLES
+# CHILD2_1_DROP_TABLES2
+# CHILD2_1_CREATE_TABLES2
+# CHILD2_1_SELECT_TABLES2
+# CHILD2_1_DROP_TABLES3
+# CHILD2_1_CREATE_TABLES3
+# CHILD2_1_SELECT_TABLES3
+# CHILD2_1_DROP_TABLES4
+# CHILD2_1_CREATE_TABLES4
+# CHILD2_1_SELECT_TABLES4
+# CHILD2_1_DROP_TABLES5
+# CHILD2_1_CREATE_TABLES5
+# CHILD2_1_SELECT_TABLES5
+# CHILD2_1_DROP_TABLES6
+# CHILD2_1_CREATE_TABLES6
+# CHILD2_1_SELECT_TABLES6
+# CHILD2_2_DROP_TABLES
+# CHILD2_2_CREATE_TABLES
+# CHILD2_2_SELECT_TABLES
diff --git a/storage/spider/mysql-test/spider/bg/r/basic_sql.result b/storage/spider/mysql-test/spider/bg/r/basic_sql.result
new file mode 100644
index 00000000..94a09fc3
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/r/basic_sql.result
@@ -0,0 +1,738 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+
+create table select test
+connection master_1;
+DROP TABLE IF EXISTS tb_l;
+CREATE TABLE tb_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+INSERT INTO tb_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+SELECT a, b, c FROM tb_l
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+create table ignore select test
+connection master_1;
+DROP TABLE IF EXISTS ta_l;
+DROP TABLE IF EXISTS tb_l;
+CREATE TABLE tb_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+INSERT INTO tb_l (a, b, c) VALUES
+(1, 'f', '2008-07-01 10:21:39'),
+(2, 'g', '2000-02-01 00:00:00'),
+(3, 'j', '2007-05-04 20:03:11'),
+(4, 'i', '2003-10-30 05:01:03'),
+(5, 'h', '2001-10-31 23:59:59');
+CREATE TABLE ta_l (
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+IGNORE SELECT a, b, c FROM tb_l
+Warnings:
+Warning	1062	Duplicate entry '1' for key 'PRIMARY'
+Warning	1062	Duplicate entry '2' for key 'PRIMARY'
+Warning	1062	Duplicate entry '3' for key 'PRIMARY'
+Warning	1062	Duplicate entry '4' for key 'PRIMARY'
+Warning	1062	Duplicate entry '5' for key 'PRIMARY'
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+create table ignore select test
+connection master_1;
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+REPLACE SELECT a, b, c FROM tb_l
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+create no index table
+connection master_1;
+DROP TABLE IF EXISTS ta_l_no_idx;
+CREATE TABLE ta_l_no_idx
+MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT2_2_1
+SELECT a, b, c FROM tb_l
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l_no_idx ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select table
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select table shared mode
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a
+LOCK IN SHARE MODE;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select table for update
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a
+FOR UPDATE;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select table join
+connection master_1;
+SELECT a.a, a.b, date_format(b.c, '%Y-%m-%d %H:%i:%s') FROM ta_l a, tb_l b
+WHERE a.a = b.a ORDER BY a.a;
+a	b	date_format(b.c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select table straight_join
+connection master_1;
+SELECT STRAIGHT_JOIN a.a, a.b, date_format(b.c, '%Y-%m-%d %H:%i:%s')
+FROM ta_l a, tb_l b WHERE a.a = b.a ORDER BY a.a;
+a	b	date_format(b.c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select sql_small_result
+connection master_1;
+SELECT SQL_SMALL_RESULT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select sql_big_result
+connection master_1;
+SELECT SQL_BIG_RESULT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select sql_buffer_result
+connection master_1;
+SELECT SQL_BUFFER_RESULT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select sql_cache
+connection master_1;
+SELECT SQL_CACHE a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select sql_no_cache
+connection master_1;
+SELECT SQL_NO_CACHE a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select sql_calc_found_rows
+connection master_1;
+SELECT SQL_CALC_FOUND_ROWS a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a LIMIT 4;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+connection master_1;
+SELECT found_rows();
+found_rows()
+5
+
+select high_priority
+connection master_1;
+SELECT HIGH_PRIORITY a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select distinct
+connection master_1;
+SELECT DISTINCT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select count
+connection master_1;
+SELECT count(*) FROM ta_l ORDER BY a;
+count(*)
+5
+
+select table join not use index
+connection master_1;
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM tb_l a WHERE
+EXISTS (SELECT * FROM ta_l b WHERE b.b = a.b) ORDER BY a.a;
+a	b	date_format(a.c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select using pushdown
+connection master_1;
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l a WHERE
+a.b = 'g' ORDER BY a.a;
+a	b	date_format(a.c, '%Y-%m-%d %H:%i:%s')
+2	g	2000-02-01 00:00:00
+
+select using index and pushdown
+connection master_1;
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l a WHERE
+a.a > 0 AND a.b = 'g' ORDER BY a.a;
+a	b	date_format(a.c, '%Y-%m-%d %H:%i:%s')
+2	g	2000-02-01 00:00:00
+
+insert
+connection master_1;
+TRUNCATE TABLE ta_l;
+connection master_1;
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59');
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	e	2008-01-01 23:59:59
+
+insert select
+connection master_1;
+TRUNCATE TABLE ta_l;
+connection master_1;
+INSERT INTO ta_l (a, b, c) SELECT a, b, c FROM tb_l;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+insert select a
+connection master_1;
+TRUNCATE TABLE ta_l;
+connection master_1;
+INSERT INTO ta_l (a, b, c) VALUES ((SELECT a FROM tb_l ORDER BY a LIMIT 1),
+'e', '2008-01-01 23:59:59');
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+
+insert low_priority
+connection master_1;
+TRUNCATE TABLE ta_l;
+connection master_1;
+INSERT LOW_PRIORITY INTO ta_l (a, b, c) values (2, 'e', '2008-01-01 23:59:59');
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	e	2008-01-01 23:59:59
+
+insert high_priority
+connection master_1;
+TRUNCATE TABLE ta_l;
+connection master_1;
+INSERT HIGH_PRIORITY INTO ta_l (a, b, c) VALUES (2, 'e',
+'2008-01-01 23:59:59');
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	e	2008-01-01 23:59:59
+
+insert ignore
+connection master_1;
+INSERT IGNORE INTO ta_l (a, b, c) VALUES (2, 'd', '2009-02-02 01:01:01');
+Warnings:
+Warning	1062	Duplicate entry '2' for key 'PRIMARY'
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	e	2008-01-01 23:59:59
+
+insert update (insert)
+connection master_1;
+TRUNCATE TABLE ta_l;
+connection master_1;
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59') ON DUPLICATE
+KEY UPDATE b = 'f', c = '2005-08-08 11:11:11';
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	e	2008-01-01 23:59:59
+
+insert update (update)
+connection master_1;
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59') ON DUPLICATE
+KEY UPDATE b = 'f', c = '2005-08-08 11:11:11';
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	f	2005-08-08 11:11:11
+
+replace
+connection master_1;
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59');
+connection master_1;
+REPLACE INTO ta_l (a, b, c) VALUES (2, 'f', '2008-02-02 02:02:02');
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	f	2008-02-02 02:02:02
+
+replace select
+connection master_1;
+REPLACE INTO ta_l (a, b, c) SELECT a, b, c FROM tb_l;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+replace select a
+connection master_1;
+REPLACE INTO ta_l (a, b, c) VALUES ((SELECT a FROM tb_l ORDER BY a LIMIT 1),
+'e', '2008-01-01 23:59:59');
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+replace low_priority
+connection master_1;
+REPLACE LOW_PRIORITY INTO ta_l (a, b, c) VALUES (3, 'g',
+'2009-03-03 03:03:03');
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+2	g	2000-02-01 00:00:00
+3	g	2009-03-03 03:03:03
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+update
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59');
+connection master_1;
+UPDATE ta_l SET b = 'f', c = '2008-02-02 02:02:02' WHERE a = 2;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+2	f	2008-02-02 02:02:02
+
+update select
+connection master_1;
+UPDATE ta_l SET b = 'g', c = '2009-03-03 03:03:03' WHERE a IN (SELECT a FROM
+tb_l);
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	g	2009-03-03 03:03:03
+2	g	2009-03-03 03:03:03
+
+update select a
+connection master_1;
+UPDATE ta_l SET b = 'h', c = '2010-04-04 04:04:04' WHERE a = (SELECT a FROM
+tb_l ORDER BY a LIMIT 1);
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	h	2010-04-04 04:04:04
+2	g	2009-03-03 03:03:03
+
+update join
+connection master_1;
+UPDATE ta_l a, tb_l b SET a.b = b.b, a.c = b.c WHERE a.a = b.a;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+
+update join a
+connection master_1;
+UPDATE ta_l a, tb_l b SET a.b = 'g', a.c = '2009-03-03 03:03:03' WHERE
+a.a = b.a;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	g	2009-03-03 03:03:03
+2	g	2009-03-03 03:03:03
+
+update low_priority
+connection master_1;
+UPDATE LOW_PRIORITY ta_l SET b = 'f', c = '2008-02-02 02:02:02' WHERE a = 2;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	g	2009-03-03 03:03:03
+2	f	2008-02-02 02:02:02
+
+update ignore
+connection master_1;
+UPDATE IGNORE ta_l SET a = 1, b = 'g', c = '2009-03-03 03:03:03' WHERE a = 2;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	g	2009-03-03 03:03:03
+2	f	2008-02-02 02:02:02
+
+update pushdown
+connection master_1;
+update ta_l set b = 'j', c = '2009-03-03 03:03:03' where b = 'f';
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	g	2009-03-03 03:03:03
+2	j	2009-03-03 03:03:03
+
+update index pushdown
+connection master_1;
+UPDATE ta_l SET b = 'g', c = '2009-03-03 03:03:03' WHERE a > 0 AND b = 'j';
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	g	2009-03-03 03:03:03
+2	g	2009-03-03 03:03:03
+
+delete
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+connection master_1;
+DELETE FROM ta_l WHERE a = 2;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+3	e	2008-01-01 23:59:59
+4	e	2008-01-01 23:59:59
+5	e	2008-01-01 23:59:59
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete all
+connection master_1;
+DELETE FROM ta_l;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+
+delete select
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+connection master_1;
+DELETE FROM ta_l WHERE a IN (SELECT a FROM tb_l);
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete select a
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+connection master_1;
+DELETE FROM ta_l WHERE a = (SELECT a FROM tb_l ORDER BY a LIMIT 1);
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	e	2008-01-01 23:59:59
+3	e	2008-01-01 23:59:59
+4	e	2008-01-01 23:59:59
+5	e	2008-01-01 23:59:59
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete join
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+connection master_1;
+DELETE a FROM ta_l a, (SELECT a FROM tb_l ORDER BY a) b WHERE a.a = b.a;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete low_priority
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+connection master_1;
+DELETE LOW_PRIORITY FROM ta_l WHERE a = 2;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+3	e	2008-01-01 23:59:59
+4	e	2008-01-01 23:59:59
+5	e	2008-01-01 23:59:59
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete ignore
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+connection master_1;
+DELETE IGNORE FROM ta_l WHERE a = 2;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+3	e	2008-01-01 23:59:59
+4	e	2008-01-01 23:59:59
+5	e	2008-01-01 23:59:59
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete quick
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+connection master_1;
+DELETE QUICK FROM ta_l WHERE a = 2;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+3	e	2008-01-01 23:59:59
+4	e	2008-01-01 23:59:59
+5	e	2008-01-01 23:59:59
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete pushdown
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+connection master_1;
+DELETE FROM ta_l WHERE b = 'e';
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+10	j	2008-01-01 23:59:59
+
+delete index pushdown
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+connection master_1;
+DELETE FROM ta_l WHERE a > 0 AND b = 'e';
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+10	j	2008-01-01 23:59:59
+
+truncate
+connection master_1;
+TRUNCATE TABLE ta_l;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bg/r/basic_sql_part.result b/storage/spider/mysql-test/spider/bg/r/basic_sql_part.result
new file mode 100644
index 00000000..0f402940
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/r/basic_sql_part.result
@@ -0,0 +1,141 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+connection master_1;
+DROP TABLE IF EXISTS tb_l;
+CREATE TABLE tb_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+INSERT INTO tb_l (a, b, c) VALUES
+(1, 'f', '2008-07-01 10:21:39'),
+(2, 'g', '2000-02-01 00:00:00'),
+(3, 'j', '2007-05-04 20:03:11'),
+(4, 'i', '2003-10-30 05:01:03'),
+(5, 'h', '2001-10-31 23:59:59');
+
+create table with partition and select test
+connection master_1;
+CREATE TABLE ta_l2 (
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_COMMENT_P_2_1
+SELECT a, b, c FROM tb_l
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select partition using pushdown
+connection master_1;
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 a WHERE
+a.b = 'g' ORDER BY a.a;
+a	b	date_format(a.c, '%Y-%m-%d %H:%i:%s')
+2	g	2000-02-01 00:00:00
+
+select partition using index pushdown
+connection master_1;
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 a WHERE
+a.a > 0 AND a.b = 'g' ORDER BY a.a;
+a	b	date_format(a.c, '%Y-%m-%d %H:%i:%s')
+2	g	2000-02-01 00:00:00
+
+update partition pushdown
+connection master_1;
+UPDATE ta_l2 SET b = 'e', c = '2009-03-03 03:03:03' WHERE b = 'j';
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	e	2009-03-03 03:03:03
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+update partition index pushdown
+connection master_1;
+UPDATE ta_l2 SET b = 'j', c = '2009-03-03 03:03:03' WHERE a > 0 AND b = 'e';
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2009-03-03 03:03:03
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+delete partition pushdown
+TRUNCATE TABLE ta_l2;
+INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+connection master_1;
+DELETE FROM ta_l2 WHERE b = 'g';
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+delete partition index pushdown
+TRUNCATE TABLE ta_l2;
+INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+connection master_1;
+DELETE FROM ta_l2 WHERE a > 0 AND b = 'g';
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bg/r/direct_aggregate.result b/storage/spider/mysql-test/spider/bg/r/direct_aggregate.result
new file mode 100644
index 00000000..ede48906
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/r/direct_aggregate.result
@@ -0,0 +1,100 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+
+create table select test
+connection master_1;
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO ta_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+direct_aggregating test
+connection master_1;
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	0
+SELECT COUNT(*) FROM ta_l;
+COUNT(*)
+5
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	0
+SELECT MAX(a) FROM ta_l;
+MAX(a)
+5
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	1
+SELECT MIN(a) FROM ta_l;
+MIN(a)
+1
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	2
+SELECT MAX(a) FROM ta_l WHERE a < 5;
+MAX(a)
+4
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	3
+SELECT MIN(a) FROM ta_l WHERE a > 1;
+MIN(a)
+2
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	4
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bg/r/direct_aggregate_part.result b/storage/spider/mysql-test/spider/bg/r/direct_aggregate_part.result
new file mode 100644
index 00000000..02cdc033
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/r/direct_aggregate_part.result
@@ -0,0 +1,90 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+
+with partition test
+connection master_1;
+CREATE TABLE ta_l2 (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	0
+SELECT COUNT(*) FROM ta_l2;
+COUNT(*)
+5
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	2
+SELECT MAX(a) FROM ta_l2;
+MAX(a)
+5
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	4
+SELECT MIN(a) FROM ta_l2;
+MIN(a)
+1
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	6
+SELECT MAX(a) FROM ta_l2 WHERE a < 5;
+MAX(a)
+4
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	8
+SELECT MIN(a) FROM ta_l2 WHERE a > 1;
+MIN(a)
+2
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	10
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bg/r/direct_update.result b/storage/spider/mysql-test/spider/bg/r/direct_update.result
new file mode 100644
index 00000000..0e536d48
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/r/direct_update.result
@@ -0,0 +1,155 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+
+create table select test
+connection master_1;
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO ta_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+direct_updating test
+connection master_1;
+SHOW STATUS LIKE 'Spider_direct_update';
+Variable_name	Value
+Spider_direct_update	0
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+update all rows with function
+UPDATE ta_l SET c = ADDDATE(c, 1);
+SHOW STATUS LIKE 'Spider_direct_update';
+Variable_name	Value
+Spider_direct_update	1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	e	2007-06-05 20:03:11
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+update by primary key
+UPDATE ta_l SET b = 'x' WHERE a = 3;
+SHOW STATUS LIKE 'Spider_direct_update';
+Variable_name	Value
+Spider_direct_update	2
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	x	2007-06-05 20:03:11
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+update by a column without index
+UPDATE ta_l SET c = '2011-10-17' WHERE b = 'x';
+SHOW STATUS LIKE 'Spider_direct_update';
+Variable_name	Value
+Spider_direct_update	3
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	x	2011-10-17 00:00:00
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+update by primary key with order and limit
+UPDATE ta_l SET c = ADDDATE(c, 1) WHERE a < 4 ORDER BY b DESC LIMIT 1;
+SHOW STATUS LIKE 'Spider_direct_update';
+Variable_name	Value
+Spider_direct_update	4
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	x	2011-10-18 00:00:00
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+delete by primary key with order and limit
+DELETE FROM ta_l WHERE a < 4 ORDER BY c LIMIT 1;
+SHOW STATUS LIKE 'Spider_direct_delete';
+Variable_name	Value
+Spider_direct_delete	1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+3	x	2011-10-18 00:00:00
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+delete by a column without index
+DELETE FROM ta_l WHERE b = 'c';
+SHOW STATUS LIKE 'Spider_direct_delete';
+Variable_name	Value
+Spider_direct_delete	2
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+3	x	2011-10-18 00:00:00
+4	d	2003-12-01 05:01:03
+delete by primary key
+DELETE FROM ta_l WHERE a = 3;
+SHOW STATUS LIKE 'Spider_direct_delete';
+Variable_name	Value
+Spider_direct_delete	3
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+4	d	2003-12-01 05:01:03
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bg/r/direct_update_part.result b/storage/spider/mysql-test/spider/bg/r/direct_update_part.result
new file mode 100644
index 00000000..7069cd72
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/r/direct_update_part.result
@@ -0,0 +1,145 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+
+with partition test
+connection master_1;
+CREATE TABLE ta_l2 (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1
+SHOW STATUS LIKE 'Spider_direct_update';
+Variable_name	Value
+Spider_direct_update	0
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+update all rows with function
+UPDATE ta_l2 SET c = ADDDATE(c, 1);
+SHOW STATUS LIKE 'Spider_direct_update';
+Variable_name	Value
+Spider_direct_update	2
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	e	2007-06-05 20:03:11
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+update by primary key
+UPDATE ta_l2 SET b = 'x' WHERE a = 3;
+SHOW STATUS LIKE 'Spider_direct_update';
+Variable_name	Value
+Spider_direct_update	3
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	x	2007-06-05 20:03:11
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+update by a column without index
+UPDATE ta_l2 SET c = '2011-10-17' WHERE b = 'x';
+SHOW STATUS LIKE 'Spider_direct_update';
+Variable_name	Value
+Spider_direct_update	5
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	x	2011-10-17 00:00:00
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+update by primary key with order and limit
+UPDATE ta_l2 SET c = ADDDATE(c, 1) WHERE a < 4 ORDER BY b DESC LIMIT 1;
+SHOW STATUS LIKE 'Spider_direct_update';
+Variable_name	Value
+Spider_direct_update	6
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	x	2011-10-18 00:00:00
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+delete by primary key with order and limit
+DELETE FROM ta_l2 WHERE a < 4 ORDER BY c LIMIT 1;
+SHOW STATUS LIKE 'Spider_direct_delete';
+Variable_name	Value
+Spider_direct_delete	1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+3	x	2011-10-18 00:00:00
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+delete by a column without index
+DELETE FROM ta_l2 WHERE b = 'c';
+SHOW STATUS LIKE 'Spider_direct_delete';
+Variable_name	Value
+Spider_direct_delete	3
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+3	x	2011-10-18 00:00:00
+4	d	2003-12-01 05:01:03
+delete by primary key
+DELETE FROM ta_l2 WHERE a = 3;
+SHOW STATUS LIKE 'Spider_direct_delete';
+Variable_name	Value
+Spider_direct_delete	4
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+4	d	2003-12-01 05:01:03
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bg/r/function.result b/storage/spider/mysql-test/spider/bg/r/function.result
new file mode 100644
index 00000000..c088a8a9
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/r/function.result
@@ -0,0 +1,160 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+
+in()
+connection master_1;
+CREATE TABLE t1 (
+a VARCHAR(255),
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET3 MASTER_1_COMMENT_TEXT_PK1_1
+insert into t1 values ('1');
+insert into t1 select a + 1 from t1;
+insert into t1 select a + 2 from t1;
+insert into t1 select a + 4 from t1;
+insert into t1 select a + 8 from t1;
+insert into t1 select a + 16 from t1;
+insert into t1 select a + 32 from t1;
+insert into t1 select a + 64 from t1;
+insert into t1 select a + 128 from t1;
+insert into t1 select a + 256 from t1;
+insert into t1 select a + 512 from t1;
+flush tables;
+connection master_1;
+select a from t1 where a in ('15', '120');
+a
+120
+15
+
+date_sub()
+connection master_1;
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO ta_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 YEAR);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-08-01 10:21:39
+2	b	1999-01-01 00:00:00
+3	e	2006-06-04 20:03:11
+4	d	2002-11-30 05:01:03
+5	c	2000-12-31 23:59:59
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 QUARTER);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-11-01 10:21:39
+2	b	1999-04-01 00:00:00
+3	e	2006-09-04 20:03:11
+4	d	2003-02-28 05:01:03
+5	c	2001-03-31 23:59:59
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 MONTH);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-10-01 10:21:39
+2	b	1999-03-01 00:00:00
+3	e	2006-08-04 20:03:11
+4	d	2003-01-28 05:01:03
+5	c	2001-02-28 23:59:59
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 WEEK);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-10-08 10:21:39
+2	b	1999-03-08 00:00:00
+3	e	2006-08-11 20:03:11
+4	d	2003-02-04 05:01:03
+5	c	2001-03-07 23:59:59
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 DAY);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-10-07 10:21:39
+2	b	1999-03-07 00:00:00
+3	e	2006-08-10 20:03:11
+4	d	2003-02-03 05:01:03
+5	c	2001-03-06 23:59:59
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 HOUR);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-10-07 11:21:39
+2	b	1999-03-07 01:00:00
+3	e	2006-08-10 21:03:11
+4	d	2003-02-03 06:01:03
+5	c	2001-03-07 00:59:59
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 MINUTE);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-10-07 11:20:39
+2	b	1999-03-07 00:59:00
+3	e	2006-08-10 21:02:11
+4	d	2003-02-03 06:00:03
+5	c	2001-03-07 00:58:59
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 SECOND);
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-10-07 11:20:40
+2	b	1999-03-07 00:59:01
+3	e	2006-08-10 21:02:12
+4	d	2003-02-03 06:00:04
+5	c	2001-03-07 00:59:00
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bg/r/ha.result b/storage/spider/mysql-test/spider/bg/r/ha.result
new file mode 100644
index 00000000..f8833c22
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/r/ha.result
@@ -0,0 +1,266 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+connection child2_3;
+DROP DATABASE IF EXISTS auto_test_remote3;
+CREATE DATABASE auto_test_remote3;
+USE auto_test_remote3;
+connection child3_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child3_2;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child3_3;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+
+create table test
+connection master_1;
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_2_1
+INSERT INTO ta_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+select test
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+fail-over test
+connection master_1;
+SHOW STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	0
+Spider_mon_table_cache_version_req	1
+INSERT INTO ta_l (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+ERROR HY000: Table 'auto_test_remote2.ta_r3' get a problem
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l	0	1
+auto_test_local	ta_l	1	3
+SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+db_name	table_name	link_id
+auto_test_local	ta_l	1
+SHOW STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	1
+Spider_mon_table_cache_version_req	1
+INSERT INTO ta_l (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+6	e	2011-05-05 20:04:05
+
+recovery test
+connection master_1;
+ALTER TABLE ta_l
+CONNECTION='host "localhost", user "root", password "",
+  msi "5", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 2"';
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l	0	1
+auto_test_local	ta_l	1	2
+SELECT spider_copy_tables('ta_l', '0', '1');
+spider_copy_tables('ta_l', '0', '1')
+1
+connection master_1;
+ALTER TABLE ta_l
+CONNECTION='host "localhost", user "root", password "",
+  msi "5", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 1"';
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l	0	1
+auto_test_local	ta_l	1	1
+INSERT INTO ta_l (a, b, c) VALUES
+(8, 'g', '2011-05-05 21:33:30');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+6	e	2011-05-05 20:04:05
+8	g	2011-05-05 21:33:30
+DROP TABLE ta_l;
+connection master_1;
+SELECT spider_flush_table_mon_cache();
+spider_flush_table_mon_cache()
+1
+
+active standby test
+create table test
+connection master_1;
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_AS_2_1
+INSERT INTO ta_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+select test
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+fail-over test
+connection master_1;
+SHOW STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	1
+Spider_mon_table_cache_version_req	2
+INSERT INTO ta_l (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+ERROR HY000: Table 'auto_test_remote.ta_r' get a problem
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l	0	3
+auto_test_local	ta_l	1	1
+SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+db_name	table_name	link_id
+auto_test_local	ta_l	1
+auto_test_local	ta_l	0
+SHOW STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	2
+Spider_mon_table_cache_version_req	2
+INSERT INTO ta_l (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+6	e	2011-05-05 20:04:05
+
+recovery test
+connection master_1;
+ALTER TABLE ta_l
+CONNECTION='host "localhost", user "root", password "",
+  msi "5", mkd "2", alc "1",
+  database "auto_test_remote auto_test_remote2", lst "1 0"';
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l	0	1
+auto_test_local	ta_l	1	1
+INSERT INTO ta_l (a, b, c) VALUES
+(8, 'g', '2011-05-05 21:33:30');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+8	g	2011-05-05 21:33:30
+DROP TABLE ta_l;
+connection master_1;
+SELECT spider_flush_table_mon_cache();
+spider_flush_table_mon_cache()
+1
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+connection child2_3;
+DROP DATABASE IF EXISTS auto_test_remote3;
+connection child3_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child3_2;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child3_3;
+DROP DATABASE IF EXISTS auto_test_local;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bg/r/ha_part.result b/storage/spider/mysql-test/spider/bg/r/ha_part.result
new file mode 100644
index 00000000..315f3729
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/r/ha_part.result
@@ -0,0 +1,286 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+connection child2_3;
+DROP DATABASE IF EXISTS auto_test_remote3;
+CREATE DATABASE auto_test_remote3;
+USE auto_test_remote3;
+connection child3_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child3_2;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child3_3;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+
+create table with partition test
+connection master_1;
+DROP TABLE IF EXISTS ta_l2;
+CREATE TABLE ta_l2 (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_P_2_1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+select test
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+fail-over test
+connection master_1;
+SHOW STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	0
+Spider_mon_table_cache_version_req	1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+ERROR HY000: Table 'auto_test_remote3.ta_r4' get a problem
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l2#P#pt1	0	1
+auto_test_local	ta_l2#P#pt1	1	1
+auto_test_local	ta_l2#P#pt2	0	1
+auto_test_local	ta_l2#P#pt2	1	3
+SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+db_name	table_name	link_id
+auto_test_local	ta_l2#P#pt2	1
+SHOW STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	1
+Spider_mon_table_cache_version_req	1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+6	e	2011-05-05 20:04:05
+
+recovery test
+connection master_1;
+ALTER TABLE ta_l2
+PARTITION BY KEY(a) (
+PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 2"'
+  );
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l2#P#pt1	0	1
+auto_test_local	ta_l2#P#pt1	1	1
+auto_test_local	ta_l2#P#pt2	0	1
+auto_test_local	ta_l2#P#pt2	1	2
+SELECT spider_copy_tables('ta_l2#P#pt2', '0', '1');
+spider_copy_tables('ta_l2#P#pt2', '0', '1')
+1
+connection master_1;
+ALTER TABLE ta_l2
+PARTITION BY KEY(a) (
+PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 1"'
+  );
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l2#P#pt1	0	1
+auto_test_local	ta_l2#P#pt1	1	1
+auto_test_local	ta_l2#P#pt2	0	1
+auto_test_local	ta_l2#P#pt2	1	1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(8, 'g', '2011-05-05 21:33:30'),
+(9, 'h', '2011-05-05 22:32:10');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+6	e	2011-05-05 20:04:05
+8	g	2011-05-05 21:33:30
+9	h	2011-05-05 22:32:10
+DROP TABLE ta_l2;
+
+create table with partition test
+connection master_1;
+DROP TABLE IF EXISTS ta_l2;
+CREATE TABLE ta_l2 (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_AS_P_2_1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+select test
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+fail-over test
+connection master_1;
+SHOW STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	1
+Spider_mon_table_cache_version_req	1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+ERROR HY000: Table 'auto_test_remote.ta_r2' get a problem
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l2#P#pt1	0	1
+auto_test_local	ta_l2#P#pt1	1	1
+auto_test_local	ta_l2#P#pt2	0	3
+auto_test_local	ta_l2#P#pt2	1	1
+SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+db_name	table_name	link_id
+auto_test_local	ta_l2#P#pt2	1
+auto_test_local	ta_l2#P#pt2	0
+SHOW STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	1
+Spider_mon_table_cache_version_req	1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+3	e	2007-06-04 20:03:11
+5	c	2001-12-31 23:59:59
+6	e	2011-05-05 20:04:05
+
+recovery test
+connection master_1;
+ALTER TABLE ta_l2
+PARTITION BY KEY(a) (
+PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "1 0"'
+  );
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l2#P#pt1	0	1
+auto_test_local	ta_l2#P#pt1	1	1
+auto_test_local	ta_l2#P#pt2	0	1
+auto_test_local	ta_l2#P#pt2	1	1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(8, 'g', '2011-05-05 21:33:30'),
+(9, 'h', '2011-05-05 22:32:10');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+3	e	2007-06-04 20:03:11
+5	c	2001-12-31 23:59:59
+8	g	2011-05-05 21:33:30
+9	h	2011-05-05 22:32:10
+DROP TABLE ta_l2;
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+connection child2_3;
+DROP DATABASE IF EXISTS auto_test_remote3;
+connection child3_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child3_2;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child3_3;
+DROP DATABASE IF EXISTS auto_test_local;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bg/r/spider3_fixes.result b/storage/spider/mysql-test/spider/bg/r/spider3_fixes.result
new file mode 100644
index 00000000..aa734573
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/r/spider3_fixes.result
@@ -0,0 +1,224 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for slave1_1
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection slave1_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+
+3.1
+auto_increment
+connection master_1;
+connection slave1_1;
+connection master_1;
+DROP TABLE IF EXISTS t1, t2;
+CREATE TABLE t1 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_1
+CREATE TABLE t2 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_1
+MASTER_1_AUTO_INCREMENT_INCREMENT2
+MASTER_1_AUTO_INCREMENT_OFFSET2
+spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 4', '',
+'srv "s_2_1"')
+1
+spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 4', '',
+'srv "s_2_2"')
+1
+spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 2', '',
+'srv "s_2_1"')
+1
+spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 3', '',
+'srv "s_2_2"')
+1
+CREATE TABLE t1 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_1
+CREATE TABLE t2 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_1
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+777
+SELECT MAX(id) FROM t1;
+MAX(id)
+777
+INSERT INTO t2 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+1554
+SELECT MAX(id) FROM t2;
+MAX(id)
+1554
+MASTER_1_AUTO_INCREMENT_OFFSET3
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+778
+SELECT MAX(id) FROM t1;
+MAX(id)
+1554
+MASTER_1_AUTO_INCREMENT_OFFSET4
+INSERT INTO t2 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+2331
+SELECT MAX(id) FROM t2;
+MAX(id)
+2331
+MASTER_1_AUTO_INCREMENT_OFFSET3
+INSERT INTO t1 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+1555
+SELECT id FROM t1 ORDER BY id;
+id
+777
+778
+1554
+1555
+2331
+2332
+3109
+3886
+MASTER_1_AUTO_INCREMENT_OFFSET4
+INSERT INTO t2 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+3108
+SELECT id FROM t2 ORDER BY id;
+id
+777
+778
+1554
+1555
+2331
+2332
+3108
+3109
+3885
+3886
+4662
+5439
+TRUNCATE TABLE t1;
+TRUNCATE TABLE t2;
+INSERT INTO t1 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+777
+SELECT id FROM t1 ORDER BY id;
+id
+777
+1554
+2331
+3108
+INSERT INTO t2 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+3885
+SELECT id FROM t2 ORDER BY id;
+id
+777
+1554
+2331
+3108
+3885
+4662
+5439
+6216
+SET INSERT_ID=5000;
+MASTER_1_AUTO_INCREMENT_OFFSET3
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+5000
+SELECT MAX(id) FROM t1;
+MAX(id)
+6216
+MASTER_1_AUTO_INCREMENT_OFFSET4
+INSERT INTO t2 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+6993
+SELECT MAX(id) FROM t2;
+MAX(id)
+6993
+INSERT INTO t1 (id) VALUES (10000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+6993
+SELECT MAX(id) FROM t1;
+MAX(id)
+10000
+INSERT INTO t2 (id) VALUES (1000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+6993
+SELECT MAX(id) FROM t2;
+MAX(id)
+10000
+connection slave1_1;
+SELECT id FROM t1 ORDER BY id;
+id
+777
+1554
+2331
+3108
+5000
+10000
+connection master_1;
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection slave1_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for slave1_1
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bg/r/spider3_fixes_part.result b/storage/spider/mysql-test/spider/bg/r/spider3_fixes_part.result
new file mode 100644
index 00000000..b793346d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/r/spider3_fixes_part.result
@@ -0,0 +1,222 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for slave1_1
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection slave1_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+auto_increment with partition
+connection master_1;
+connection slave1_1;
+connection master_1;
+DROP TABLE IF EXISTS t1, t2;
+CREATE TABLE t1 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_P_1
+CREATE TABLE t2 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_P_1
+MASTER_1_AUTO_INCREMENT_INCREMENT2
+MASTER_1_AUTO_INCREMENT_OFFSET2
+spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 4', '',
+'srv "s_2_1"')
+1
+spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 4', '',
+'srv "s_2_2"')
+1
+spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 2', '',
+'srv "s_2_1"')
+1
+spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 3', '',
+'srv "s_2_2"')
+1
+CREATE TABLE t1 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_P_1
+CREATE TABLE t2 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_P_1
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+777
+SELECT MAX(id) FROM t1;
+MAX(id)
+777
+INSERT INTO t2 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+1554
+SELECT MAX(id) FROM t2;
+MAX(id)
+1554
+MASTER_1_AUTO_INCREMENT_OFFSET3
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+778
+SELECT MAX(id) FROM t1;
+MAX(id)
+1554
+MASTER_1_AUTO_INCREMENT_OFFSET4
+INSERT INTO t2 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+2331
+SELECT MAX(id) FROM t2;
+MAX(id)
+2331
+MASTER_1_AUTO_INCREMENT_OFFSET3
+INSERT INTO t1 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+1555
+SELECT id FROM t1 ORDER BY id;
+id
+777
+778
+1554
+1555
+2331
+2332
+3109
+3886
+MASTER_1_AUTO_INCREMENT_OFFSET4
+INSERT INTO t2 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+3108
+SELECT id FROM t2 ORDER BY id;
+id
+777
+778
+1554
+1555
+2331
+2332
+3108
+3109
+3885
+3886
+4662
+5439
+TRUNCATE TABLE t1;
+TRUNCATE TABLE t2;
+INSERT INTO t1 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+777
+SELECT id FROM t1 ORDER BY id;
+id
+777
+1554
+2331
+3108
+INSERT INTO t2 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+3885
+SELECT id FROM t2 ORDER BY id;
+id
+777
+1554
+2331
+3108
+3885
+4662
+5439
+6216
+SET INSERT_ID=5000;
+MASTER_1_AUTO_INCREMENT_OFFSET3
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+5000
+SELECT MAX(id) FROM t1;
+MAX(id)
+6216
+MASTER_1_AUTO_INCREMENT_OFFSET4
+INSERT INTO t2 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+6993
+SELECT MAX(id) FROM t2;
+MAX(id)
+6993
+INSERT INTO t1 (id) VALUES (10000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+6993
+SELECT MAX(id) FROM t1;
+MAX(id)
+10000
+INSERT INTO t2 (id) VALUES (1000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+6993
+SELECT MAX(id) FROM t2;
+MAX(id)
+10000
+connection slave1_1;
+SELECT id FROM t1 ORDER BY id;
+id
+777
+1554
+2331
+3108
+5000
+10000
+connection master_1;
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection slave1_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for slave1_1
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bg/r/spider_fixes.result b/storage/spider/mysql-test/spider/bg/r/spider_fixes.result
new file mode 100644
index 00000000..1db31ca9
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/r/spider_fixes.result
@@ -0,0 +1,610 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for slave1_1
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection slave1_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+
+create table and insert
+connection master_1;
+DROP TABLE IF EXISTS tb_l;
+CREATE TABLE tb_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+INSERT INTO tb_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+
+2.13
+select table with "order by desc" and "<"
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+WHERE a < 5 ORDER BY a DESC LIMIT 3;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+4	d	2003-11-30 05:01:03
+3	e	2007-06-04 20:03:11
+2	b	2000-01-01 00:00:00
+
+select table with "order by desc" and "<="
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+WHERE a <= 5 ORDER BY a DESC LIMIT 3;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+5	c	2001-12-31 23:59:59
+4	d	2003-11-30 05:01:03
+3	e	2007-06-04 20:03:11
+
+2.14
+update table with range scan and split_read
+connection master_1;
+UPDATE ta_l SET c = '2000-02-02 00:00:00' WHERE a > 1;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-02-02 00:00:00
+3	e	2000-02-02 00:00:00
+4	d	2000-02-02 00:00:00
+5	c	2000-02-02 00:00:00
+
+2.15
+select table with range scan
+TRUNCATE TABLE ta_l;
+DROP TABLE IF EXISTS ta_l;
+connection master_1;
+CREATE TABLE ta_l (
+a int(11) NOT NULL DEFAULT '0',
+b char(1) DEFAULT NULL,
+c datetime DEFAULT NULL,
+PRIMARY KEY (a, b, c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT5_2_1
+INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b >= 'b'
+AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b > 'b'
+AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a >= 4 AND b = 'd'
+AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a > 4 AND b = 'c'
+AND c = '2001-12-31 23:59:59';
+a	b	c
+5	c	2001-12-31 23:59:59
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b <= 'd'
+AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b < 'e'
+AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a <= 4 AND b = 'b'
+AND c = '2000-01-01 00:00:00';
+a	b	c
+2	b	2000-01-01 00:00:00
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a < 4 AND b = 'b'
+AND c = '2000-01-01 00:00:00';
+a	b	c
+2	b	2000-01-01 00:00:00
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b >= 'b'
+AND b <= 'd' AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b > 'b'
+AND b < 'e' AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a <= 4 AND a >= 1
+AND b >= 'b' AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a < 4 AND a > 1
+AND b >= 'b' AND c = '2000-01-01 00:00:00';
+a	b	c
+2	b	2000-01-01 00:00:00
+
+2.16
+auto_increment insert with trigger
+connection master_1;
+CREATE TABLE ta_l_auto_inc (
+a INT AUTO_INCREMENT,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10',
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT3_2_1
+CREATE TABLE tc_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+CREATE TRIGGER ins_ta_l_auto_inc AFTER INSERT ON ta_l_auto_inc FOR EACH ROW BEGIN INSERT INTO tc_l (a, b, c) VALUES (NEW.a, NEW.b, NEW.c); END;;
+connection master_1;
+INSERT INTO ta_l_auto_inc (a, b, c) VALUES
+(NULL, 's', '2008-12-31 20:59:59');
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM tc_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	s	2008-12-31 20:59:59
+
+2.17
+engine-condition-pushdown with "or" and joining
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l WHERE a = 1 OR a IN (SELECT a FROM tb_l);
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+2.23
+index merge
+connection master_1;
+CREATE TABLE ta_l_int (
+a INT AUTO_INCREMENT,
+b INT DEFAULT 10,
+c INT DEFAULT 11,
+PRIMARY KEY(a),
+KEY idx1(b),
+KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1
+INSERT INTO ta_l_int (a, b, c) VALUES (1, 2, 3);
+INSERT INTO ta_l_int (a, b, c) SELECT a + 1, b + 1, c + 1 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 2, b + 2, c + 2 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 4, b + 4, c + 4 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 8, b + 8, c + 8 FROM ta_l_int;
+connection master_1;
+SELECT a, b, c FROM ta_l_int force index(primary, idx1, idx2)
+WHERE a = 5 OR b = 5 OR c = 5 ORDER BY a;
+a	b	c
+3	4	5
+4	5	6
+5	6	7
+
+2.24
+index scan update without PK
+connection master_1;
+DROP TABLE IF EXISTS ta_l_int;
+CREATE TABLE ta_l_int (
+a INT NOT NULL,
+b INT DEFAULT 10,
+c INT DEFAULT 11,
+KEY idx1(b),
+KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1
+SELECT a, b, c FROM ta_l_int ORDER BY a;
+a	b	c
+1	2	3
+2	3	4
+3	4	5
+4	5	6
+5	6	7
+6	7	8
+7	8	9
+8	9	10
+9	10	11
+10	11	12
+11	12	13
+12	13	14
+13	14	15
+14	15	16
+15	16	17
+16	17	18
+INSERT INTO ta_l_int (a, b, c) VALUES (0, 2, 3);
+INSERT INTO ta_l_int (a, b, c) VALUES (18, 2, 3);
+connection master_1;
+UPDATE ta_l_int SET c = 4 WHERE b = 2;
+connection master_1;
+SELECT a, b, c FROM ta_l_int ORDER BY a;
+a	b	c
+1	2	4
+2	3	4
+3	4	5
+4	5	6
+5	6	7
+6	7	8
+7	8	9
+8	9	10
+9	10	11
+10	11	12
+11	12	13
+12	13	14
+13	14	15
+14	15	16
+15	16	17
+16	17	18
+17	2	4
+18	2	4
+
+2.25
+direct order limit
+connection master_1;
+SHOW STATUS LIKE 'Spider_direct_order_limit';
+Variable_name	Value
+Spider_direct_order_limit	2
+SELECT a, b, c FROM ta_l_int ORDER BY a LIMIT 3;
+a	b	c
+1	2	4
+2	3	4
+3	4	5
+SHOW STATUS LIKE 'Spider_direct_order_limit';
+Variable_name	Value
+Spider_direct_order_limit	3
+
+2.26
+lock tables
+connection master_1;
+DROP TABLE IF EXISTS t1;
+DROP TABLE IF EXISTS t2;
+CREATE TABLE t1 (
+id int(11) NOT NULL,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_LOCK1
+CREATE TABLE t2 (
+id int(11) NOT NULL,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_LOCK2
+LOCK TABLES t1 READ, t2 READ;
+UNLOCK TABLES;
+
+auto_increment
+connection master_1;
+connection slave1_1;
+connection master_1;
+DROP TABLE IF EXISTS t1;
+CREATE TABLE t1 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_1
+MASTER_1_AUTO_INCREMENT_INCREMENT2
+MASTER_1_AUTO_INCREMENT_OFFSET2
+spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 4', '',
+'srv "s_2_1"')
+1
+spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 4', '',
+'srv "s_2_2"')
+1
+spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 2', '',
+'srv "s_2_1"')
+1
+spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 3', '',
+'srv "s_2_2"')
+1
+CREATE TABLE t1 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_1
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+777
+SELECT MAX(id) FROM t1;
+MAX(id)
+777
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+1554
+SELECT MAX(id) FROM t1;
+MAX(id)
+1554
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+2331
+SELECT MAX(id) FROM t1;
+MAX(id)
+2331
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+3108
+SELECT MAX(id) FROM t1;
+MAX(id)
+3108
+INSERT INTO t1 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+3885
+SELECT id FROM t1 ORDER BY id;
+id
+777
+1554
+2331
+3108
+3885
+4662
+5439
+6216
+SET INSERT_ID=5000;
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+5000
+SELECT MAX(id) FROM t1;
+MAX(id)
+6216
+INSERT INTO t1 (id) VALUES (10000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+5000
+SELECT MAX(id) FROM t1;
+MAX(id)
+10000
+INSERT INTO t1 (id) VALUES (1000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+5000
+SELECT MAX(id) FROM t1;
+MAX(id)
+10000
+connection slave1_1;
+SELECT id FROM t1 ORDER BY id;
+id
+777
+1000
+1554
+2331
+3108
+3885
+4662
+5000
+5439
+6216
+10000
+connection master_1;
+
+read only
+connection master_1;
+DROP TABLE IF EXISTS t1;
+CREATE TABLE t1 (
+id int(11) NOT NULL,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_READONLY1_1
+SELECT id FROM t1 ORDER BY id;
+id
+777
+1000
+1554
+2331
+3108
+3885
+4662
+5000
+5439
+6216
+10000
+INSERT INTO t1 (id) VALUES (1);
+ERROR HY000: Table 'auto_test_local.t1' is read only
+UPDATE t1 SET id = 4 WHERE id = 777;
+ERROR HY000: Table 'auto_test_local.t1' is read only
+DELETE FROM t1 WHERE id = 777;
+ERROR HY000: Table 'auto_test_local.t1' is read only
+DELETE FROM t1;
+ERROR HY000: Table 'auto_test_local.t1' is read only
+TRUNCATE t1;
+ERROR HY000: Table 'auto_test_local.t1' is read only
+
+2.27
+error mode
+connection master_1;
+DROP TABLE IF EXISTS t1;
+CREATE TABLE t1 (
+id int(11) NOT NULL,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_ERROR_MODE1_1
+SELECT id FROM t1 ORDER BY id;
+id
+Warnings:
+Error	12702	Remote table 'auto_test_remote.ter1_1' is not found
+Error	1146	Table 'auto_test_remote.ter1_1' doesn't exist
+INSERT INTO t1 (id) VALUES (1);
+Warnings:
+Error	1146	Table 'auto_test_remote.ter1_1' doesn't exist
+DELETE FROM t1;
+Warnings:
+Error	12702	Remote table 'auto_test_remote.ter1_1' is not found
+Error	12702	Remote table 'auto_test_remote.ter1_1' is not found
+Error	1146	Table 'auto_test_remote.ter1_1' doesn't exist
+TRUNCATE t1;
+Warnings:
+Error	1146	Table 'auto_test_remote.ter1_1' doesn't exist
+
+3.0
+is null
+connection master_1;
+DROP TABLE IF EXISTS t1;
+CREATE TABLE t1 (
+a VARCHAR(255),
+b VARCHAR(255),
+c VARCHAR(255),
+KEY idx1(a,b),
+KEY idx2(b),
+PRIMARY KEY(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_TEXT_KEY1_1
+insert into t1 values (null, null, '2048');
+insert into t1 values ('1', '1', '1');
+insert into t1 select a + 1,   b + 1,   c + 1   from t1;
+insert into t1 select a + 2,   b + 2,   c + 2   from t1;
+insert into t1 select a + 4,   b + 4,   c + 4   from t1;
+insert into t1 select a + 8,   b + 8,   c + 8   from t1;
+insert into t1 select a + 16,  b + 16,  c + 16  from t1;
+insert into t1 select a + 32,  b + 32,  c + 32  from t1;
+insert into t1 select a + 64,  b + 64,  c + 64  from t1;
+insert into t1 select a + 128, b + 128, c + 128 from t1;
+insert into t1 select a + 256, b + 256, c + 256 from t1;
+insert into t1 select a + 512, b + 512, c + 512 from t1;
+flush tables;
+connection master_1;
+select a from t1 where a is null order by a limit 30;
+a
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+select b from t1 where b is null order by b limit 30;
+b
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+
+direct_order_limit
+connection master_1;
+TRUNCATE TABLE t1;
+insert into t1 values ('1', '1', '1');
+insert into t1 select a + 1,   b + 1,   c + 1   from t1;
+insert into t1 select a + 2,   b + 2,   c + 2   from t1;
+insert into t1 select a + 4,   b + 4,   c + 4   from t1;
+insert into t1 select a + 8,   b + 8,   c + 8   from t1;
+insert into t1 select a + 16,  b + 16,  c + 16  from t1;
+insert into t1 select a,       b + 32,  c + 32  from t1;
+insert into t1 select a,       b + 64,  c + 64  from t1;
+insert into t1 select a,       b + 128, c + 128 from t1;
+flush tables;
+connection master_1;
+select a, b, c from t1 where a = '10' and b <> '100' order by c desc limit 5;
+a	b	c
+10	74	74
+10	42	42
+10	234	234
+10	202	202
+10	170	170
+select a, c from t1 where a = '10' order by b desc limit 5;
+a	c
+10	74
+10	42
+10	234
+10	202
+10	170
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection slave1_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for slave1_1
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bg/r/spider_fixes_part.result b/storage/spider/mysql-test/spider/bg/r/spider_fixes_part.result
new file mode 100644
index 00000000..faf0b6ef
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/r/spider_fixes_part.result
@@ -0,0 +1,237 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for slave1_1
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection slave1_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+connection master_1;
+DROP TABLE IF EXISTS tb_l;
+CREATE TABLE tb_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+INSERT INTO tb_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+2.17
+partition with sort
+connection master_1;
+CREATE TABLE ta_l2 (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1
+INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 WHERE a > 1
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+2.23
+partition update with moving partition
+connection master_1;
+DROP TABLE IF EXISTS ta_l2;
+connection master_1;
+CREATE TABLE ta_l2 (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1
+INSERT INTO ta_l2 (a, b, c) VALUES (3, 'B', '2010-09-26 00:00:00');
+UPDATE ta_l2 SET a = 4 WHERE a = 3;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+4	B	2010-09-26 00:00:00
+index merge with partition
+connection master_1;
+DROP TABLE IF EXISTS ta_l_int;
+connection master_1;
+CREATE TABLE ta_l_int (
+a INT AUTO_INCREMENT,
+b INT DEFAULT 10,
+c INT DEFAULT 11,
+PRIMARY KEY(a),
+KEY idx1(b),
+KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT3_P_2_1
+INSERT INTO ta_l_int (a, b, c) VALUES (1, 2, 3);
+INSERT INTO ta_l_int (a, b, c) SELECT a + 1, b + 1, c + 1 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 2, b + 2, c + 2 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 4, b + 4, c + 4 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 8, b + 8, c + 8 FROM ta_l_int;
+connection master_1;
+SELECT a, b, c FROM ta_l_int force index(primary, idx1, idx2)
+WHERE a = 5 OR b = 5 OR c = 5 ORDER BY a;
+a	b	c
+3	4	5
+4	5	6
+5	6	7
+
+2.26
+auto_increment with partition
+connection master_1;
+connection slave1_1;
+connection master_1;
+DROP TABLE IF EXISTS t1;
+CREATE TABLE t1 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_P_1
+MASTER_1_AUTO_INCREMENT_INCREMENT2
+MASTER_1_AUTO_INCREMENT_OFFSET2
+spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 4', '',
+'srv "s_2_1"')
+1
+spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 4', '',
+'srv "s_2_2"')
+1
+spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 2', '',
+'srv "s_2_1"')
+1
+spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 3', '',
+'srv "s_2_2"')
+1
+CREATE TABLE t1 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_P_1
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+777
+SELECT MAX(id) FROM t1;
+MAX(id)
+777
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+1554
+SELECT MAX(id) FROM t1;
+MAX(id)
+1554
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+2331
+SELECT MAX(id) FROM t1;
+MAX(id)
+2331
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+3108
+SELECT MAX(id) FROM t1;
+MAX(id)
+3108
+INSERT INTO t1 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+3885
+SELECT id FROM t1 ORDER BY id;
+id
+777
+1554
+2331
+3108
+3885
+4662
+5439
+6216
+SET INSERT_ID=5000;
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+5000
+SELECT MAX(id) FROM t1;
+MAX(id)
+6216
+INSERT INTO t1 (id) VALUES (10000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+5000
+SELECT MAX(id) FROM t1;
+MAX(id)
+10000
+INSERT INTO t1 (id) VALUES (1000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+5000
+SELECT MAX(id) FROM t1;
+MAX(id)
+10000
+connection slave1_1;
+SELECT id FROM t1 ORDER BY id;
+id
+777
+1000
+1554
+2331
+3108
+3885
+4662
+5000
+5439
+6216
+10000
+connection master_1;
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection slave1_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for slave1_1
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bg/r/vp_fixes.result b/storage/spider/mysql-test/spider/bg/r/vp_fixes.result
new file mode 100644
index 00000000..cc0e4105
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/r/vp_fixes.result
@@ -0,0 +1,93 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+
+create table and insert
+connection master_1;
+DROP TABLE IF EXISTS tb_l;
+CREATE TABLE tb_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+INSERT INTO tb_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+
+0.9
+create different primary key table
+connection master_1;
+CREATE TABLE ta_l_int (
+a INT DEFAULT 10,
+b INT AUTO_INCREMENT,
+c INT DEFAULT 11,
+PRIMARY KEY(b)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1
+connection master_1;
+INSERT INTO ta_l_int (a, b, c) VALUES (2, NULL, 3);
+create un-correspond primary key table
+connection master_1;
+DROP TABLE IF EXISTS ta_l_int;
+connection master_1;
+CREATE TABLE ta_l_int (
+a INT DEFAULT 10,
+b INT DEFAULT 12,
+c INT DEFAULT 11,
+PRIMARY KEY(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1
+connection master_1;
+INSERT INTO ta_l_int (a, b, c) VALUES (2, NULL, 3);
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bg/suite.opt b/storage/spider/mysql-test/spider/bg/suite.opt
new file mode 100644
index 00000000..672a3b37
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/suite.opt
@@ -0,0 +1 @@
+--loose-innodb --loose-skip-performance-schema
diff --git a/storage/spider/mysql-test/spider/bg/suite.pm b/storage/spider/mysql-test/spider/bg/suite.pm
new file mode 100644
index 00000000..171fa6c4
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/suite.pm
@@ -0,0 +1,11 @@
+package My::Suite::Spider;
+
+@ISA = qw(My::Suite);
+
+return "No Spider engine" unless $ENV{HA_SPIDER_SO};
+return "Not run for embedded server" if $::opt_embedded_server;
+
+sub is_default { 1 }
+
+bless { };
+
diff --git a/storage/spider/mysql-test/spider/bg/t/basic_sql.test b/storage/spider/mysql-test/spider/bg/t/basic_sql.test
new file mode 100644
index 00000000..5bb04004
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/basic_sql.test
@@ -0,0 +1,2699 @@
+# This test tests by executing basic SQL
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tb_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+eval CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+--enable_query_log
+INSERT INTO tb_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+SELECT a, b, c FROM tb_l;
+if ($MASTER_1_MERGE)
+{
+  --error ER_WRONG_OBJECT
+  eval CREATE TABLE ta_l (
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1
+  SELECT a, b, c FROM tb_l;
+  eval CREATE TABLE ta_l (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+  INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+}
+if (!$MASTER_1_MERGE)
+{
+  eval CREATE TABLE ta_l (
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1
+  SELECT a, b, c FROM tb_l;
+}
+--enable_query_log
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo create table ignore select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+DROP TABLE IF EXISTS tb_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+eval CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+--enable_query_log
+INSERT INTO tb_l (a, b, c) VALUES
+  (1, 'f', '2008-07-01 10:21:39'),
+  (2, 'g', '2000-02-01 00:00:00'),
+  (3, 'j', '2007-05-04 20:03:11'),
+  (4, 'i', '2003-10-30 05:01:03'),
+  (5, 'h', '2001-10-31 23:59:59');
+--disable_query_log
+echo CREATE TABLE ta_l (
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+IGNORE SELECT a, b, c FROM tb_l;
+if ($MASTER_1_MERGE)
+{
+  --error ER_WRONG_OBJECT
+  eval CREATE TABLE ta_l (
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1
+  IGNORE SELECT a, b, c FROM tb_l;
+  eval CREATE TABLE ta_l (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+  INSERT IGNORE INTO ta_l SELECT a, b, c FROM tb_l;
+}
+if (!$MASTER_1_MERGE)
+{
+  eval CREATE TABLE ta_l (
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1
+  IGNORE SELECT a, b, c FROM tb_l;
+}
+--enable_query_log
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo create table ignore select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+REPLACE SELECT a, b, c FROM tb_l;
+if ($MASTER_1_MERGE)
+{
+  --error ER_WRONG_OBJECT
+  eval CREATE TABLE ta_l (
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1
+  REPLACE SELECT a, b, c FROM tb_l;
+  eval CREATE TABLE ta_l (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+  REPLACE INTO ta_l SELECT a, b, c FROM tb_l;
+}
+if (!$MASTER_1_MERGE)
+{
+  eval CREATE TABLE ta_l (
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1
+  REPLACE SELECT a, b, c FROM tb_l;
+}
+--enable_query_log
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%replace %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo create no index table
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES3;
+    echo CHILD2_1_CREATE_TABLES3;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES3;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES3;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l_no_idx;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l_no_idx
+MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT2_2_1
+SELECT a, b, c FROM tb_l;
+if ($MASTER_1_NEEDPK)
+{
+  --error ER_REQUIRES_PRIMARY_KEY
+  eval CREATE TABLE ta_l_no_idx
+  $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT2_2_1
+  SELECT a, b, c FROM tb_l;
+  eval CREATE TABLE ta_l_no_idx (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT2_2_1;
+  INSERT INTO ta_l_no_idx SELECT a, b, c FROM tb_l;
+}
+if (!$MASTER_1_NEEDPK)
+{
+  if ($MASTER_1_MERGE)
+  {
+    --error ER_WRONG_OBJECT
+    eval CREATE TABLE ta_l_no_idx
+    $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT2_2_1
+    SELECT a, b, c FROM tb_l;
+    eval CREATE TABLE ta_l_no_idx (
+      a INT,
+      b CHAR(1),
+      c DATETIME
+    ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT2_2_1;
+    INSERT INTO ta_l_no_idx SELECT a, b, c FROM tb_l;
+  }
+  if (!$MASTER_1_MERGE)
+  {
+    eval CREATE TABLE ta_l_no_idx
+    $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT2_2_1
+    SELECT a, b, c FROM tb_l;
+  }
+}
+--enable_query_log
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES3;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l_no_idx ORDER BY a;
+
+--echo
+--echo select table
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select table shared mode
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a
+LOCK IN SHARE MODE;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select table for update
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a
+FOR UPDATE;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select table join
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a.a, a.b, date_format(b.c, '%Y-%m-%d %H:%i:%s') FROM ta_l a, tb_l b
+WHERE a.a = b.a ORDER BY a.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select table straight_join
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT STRAIGHT_JOIN a.a, a.b, date_format(b.c, '%Y-%m-%d %H:%i:%s')
+FROM ta_l a, tb_l b WHERE a.a = b.a ORDER BY a.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select sql_small_result
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT SQL_SMALL_RESULT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select sql_big_result
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT SQL_BIG_RESULT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select sql_buffer_result
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT SQL_BUFFER_RESULT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select sql_cache
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT SQL_CACHE a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select sql_no_cache
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT SQL_NO_CACHE a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select sql_calc_found_rows
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT SQL_CALC_FOUND_ROWS a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a LIMIT 4;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT found_rows();
+
+--echo
+--echo select high_priority
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT HIGH_PRIORITY a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select distinct
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT DISTINCT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select count
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT count(*) FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select table join not use index
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM tb_l a WHERE
+EXISTS (SELECT * FROM ta_l b WHERE b.b = a.b) ORDER BY a.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select using pushdown
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l a WHERE
+a.b = 'g' ORDER BY a.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select using index and pushdown
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l a WHERE
+a.a > 0 AND a.b = 'g' ORDER BY a.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo insert
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert select
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT INTO ta_l (a, b, c) SELECT a, b, c FROM tb_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert select a
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT INTO ta_l (a, b, c) VALUES ((SELECT a FROM tb_l ORDER BY a LIMIT 1),
+'e', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert low_priority
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT LOW_PRIORITY INTO ta_l (a, b, c) values (2, 'e', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert high_priority
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT HIGH_PRIORITY INTO ta_l (a, b, c) VALUES (2, 'e',
+'2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert ignore
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT IGNORE INTO ta_l (a, b, c) VALUES (2, 'd', '2009-02-02 01:01:01');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert update (insert)
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59') ON DUPLICATE
+KEY UPDATE b = 'f', c = '2005-08-08 11:11:11';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%update %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert update (update)
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59') ON DUPLICATE
+KEY UPDATE b = 'f', c = '2005-08-08 11:11:11';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%update %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo replace
+--connection master_1
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+REPLACE INTO ta_l (a, b, c) VALUES (2, 'f', '2008-02-02 02:02:02');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'replace %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo replace select
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+REPLACE INTO ta_l (a, b, c) SELECT a, b, c FROM tb_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'replace %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo replace select a
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+REPLACE INTO ta_l (a, b, c) VALUES ((SELECT a FROM tb_l ORDER BY a LIMIT 1),
+'e', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'replace %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo replace low_priority
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+REPLACE LOW_PRIORITY INTO ta_l (a, b, c) VALUES (3, 'g',
+'2009-03-03 03:03:03');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'replace %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l SET b = 'f', c = '2008-02-02 02:02:02' WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update select
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l SET b = 'g', c = '2009-03-03 03:03:03' WHERE a IN (SELECT a FROM
+tb_l);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update select a
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l SET b = 'h', c = '2010-04-04 04:04:04' WHERE a = (SELECT a FROM
+tb_l ORDER BY a LIMIT 1);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update join
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l a, tb_l b SET a.b = b.b, a.c = b.c WHERE a.a = b.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update join a
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l a, tb_l b SET a.b = 'g', a.c = '2009-03-03 03:03:03' WHERE
+a.a = b.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update low_priority
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE LOW_PRIORITY ta_l SET b = 'f', c = '2008-02-02 02:02:02' WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update ignore
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE IGNORE ta_l SET a = 1, b = 'g', c = '2009-03-03 03:03:03' WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update pushdown
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+update ta_l set b = 'j', c = '2009-03-03 03:03:03' where b = 'f';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update index pushdown
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l SET b = 'g', c = '2009-03-03 03:03:03' WHERE a > 0 AND b = 'j';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE FROM ta_l WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete all
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE FROM ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete select
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE FROM ta_l WHERE a IN (SELECT a FROM tb_l);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete select a
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE FROM ta_l WHERE a = (SELECT a FROM tb_l ORDER BY a LIMIT 1);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete join
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE a FROM ta_l a, (SELECT a FROM tb_l ORDER BY a) b WHERE a.a = b.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete low_priority
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE LOW_PRIORITY FROM ta_l WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete ignore
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE IGNORE FROM ta_l WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete quick
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE QUICK FROM ta_l WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete pushdown
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE FROM ta_l WHERE b = 'e';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete index pushdown
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE FROM ta_l WHERE a > 0 AND b = 'e';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo truncate
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'truncate %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bg/t/basic_sql_part.test b/storage/spider/mysql-test/spider/bg/t/basic_sql_part.test
new file mode 100644
index 00000000..e1638642
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/basic_sql_part.test
@@ -0,0 +1,571 @@
+# This test tests by executing basic SQL
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+if (!$HAVE_PARTITION)
+{
+  --disable_query_log
+  --disable_result_log
+  --source test_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tb_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+eval CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+--enable_query_log
+INSERT INTO tb_l (a, b, c) VALUES
+  (1, 'f', '2008-07-01 10:21:39'),
+  (2, 'g', '2000-02-01 00:00:00'),
+  (3, 'j', '2007-05-04 20:03:11'),
+  (4, 'i', '2003-10-30 05:01:03'),
+  (5, 'h', '2001-10-31 23:59:59');
+
+--echo
+--echo create table with partition and select test
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_COMMENT_P_2_1
+  SELECT a, b, c FROM tb_l;
+  if ($MASTER_1_MERGE)
+  {
+    --error ER_WRONG_OBJECT
+    eval CREATE TABLE ta_l2 (
+      PRIMARY KEY(a)
+    ) $MASTER_1_ENGINE $MASTER_1_COMMENT_P_2_1
+    SELECT a, b, c FROM tb_l;
+    eval CREATE TABLE ta_l2 (
+      a INT,
+      b CHAR(1),
+      c DATETIME,
+      PRIMARY KEY(a)
+    ) $MASTER_1_ENGINE $MASTER_1_COMMENT_P_2_1;
+    INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+  }
+  if (!$MASTER_1_MERGE)
+  {
+    eval CREATE TABLE ta_l2 (
+      PRIMARY KEY(a)
+    ) $MASTER_1_ENGINE $MASTER_1_COMMENT_P_2_1
+    SELECT a, b, c FROM tb_l;
+  }
+  --enable_query_log
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+}
+
+--echo
+--echo select partition using pushdown
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 a WHERE
+  a.b = 'g' ORDER BY a.a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo
+--echo select partition using index pushdown
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 a WHERE
+  a.a > 0 AND a.b = 'g' ORDER BY a.a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo
+--echo update partition pushdown
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  UPDATE ta_l2 SET b = 'e', c = '2009-03-03 03:03:03' WHERE b = 'j';
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+}
+
+--echo
+--echo update partition index pushdown
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  UPDATE ta_l2 SET b = 'j', c = '2009-03-03 03:03:03' WHERE a > 0 AND b = 'e';
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+}
+
+--echo
+--echo delete partition pushdown
+if ($HAVE_PARTITION)
+{
+  TRUNCATE TABLE ta_l2;
+  INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  DELETE FROM ta_l2 WHERE b = 'g';
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+}
+
+--echo
+--echo delete partition index pushdown
+if ($HAVE_PARTITION)
+{
+  TRUNCATE TABLE ta_l2;
+  INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  DELETE FROM ta_l2 WHERE a > 0 AND b = 'g';
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bg/t/connect_child2_1.inc b/storage/spider/mysql-test/spider/bg/t/connect_child2_1.inc
new file mode 100644
index 00000000..cd9b0c9c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/connect_child2_1.inc
@@ -0,0 +1 @@
+--connect (child2_1, localhost, root, , , $CHILD2_1_MYPORT, $CHILD2_1_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/bg/t/connect_child2_2.inc b/storage/spider/mysql-test/spider/bg/t/connect_child2_2.inc
new file mode 100644
index 00000000..e145f66b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/connect_child2_2.inc
@@ -0,0 +1 @@
+--connect (child2_2, localhost, root, , , $CHILD2_2_MYPORT, $CHILD2_2_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/bg/t/connect_child2_3.inc b/storage/spider/mysql-test/spider/bg/t/connect_child2_3.inc
new file mode 100644
index 00000000..d356348d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/connect_child2_3.inc
@@ -0,0 +1 @@
+--connect (child2_3, localhost, root, , , $CHILD2_3_MYPORT, $CHILD2_3_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/bg/t/connect_child3_1.inc b/storage/spider/mysql-test/spider/bg/t/connect_child3_1.inc
new file mode 100644
index 00000000..03e5c188
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/connect_child3_1.inc
@@ -0,0 +1 @@
+--connect (child3_1, localhost, root, , , $CHILD3_1_MYPORT, $CHILD3_1_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/bg/t/connect_child3_2.inc b/storage/spider/mysql-test/spider/bg/t/connect_child3_2.inc
new file mode 100644
index 00000000..d62a7ada
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/connect_child3_2.inc
@@ -0,0 +1 @@
+--connect (child3_2, localhost, root, , , $CHILD3_2_MYPORT, $CHILD3_2_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/bg/t/connect_child3_3.inc b/storage/spider/mysql-test/spider/bg/t/connect_child3_3.inc
new file mode 100644
index 00000000..fb49f5bf
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/connect_child3_3.inc
@@ -0,0 +1 @@
+--connect (child3_3, localhost, root, , , $CHILD3_3_MYPORT, $CHILD3_3_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/bg/t/connect_master_1.inc b/storage/spider/mysql-test/spider/bg/t/connect_master_1.inc
new file mode 100644
index 00000000..0c129ce5
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/connect_master_1.inc
@@ -0,0 +1 @@
+--connect (master_1, localhost, root, , , $MASTER_1_MYPORT, $MASTER_1_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/bg/t/connect_slave1_1.inc b/storage/spider/mysql-test/spider/bg/t/connect_slave1_1.inc
new file mode 100644
index 00000000..45a82274
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/connect_slave1_1.inc
@@ -0,0 +1 @@
+--connect (slave1_1, localhost, root, , , $SLAVE1_1_MYPORT, $SLAVE1_1_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/bg/t/direct_aggregate.test b/storage/spider/mysql-test/spider/bg/t/direct_aggregate.test
new file mode 100644
index 00000000..d65f4c5a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/direct_aggregate.test
@@ -0,0 +1,179 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO ta_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+
+--echo
+--echo direct_aggregating test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+SELECT COUNT(*) FROM ta_l;
+eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+SELECT MAX(a) FROM ta_l;
+eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+SELECT MIN(a) FROM ta_l;
+eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+SELECT MAX(a) FROM ta_l WHERE a < 5;
+eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+SELECT MIN(a) FROM ta_l WHERE a > 1;
+eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%handler %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bg/t/direct_aggregate_part.test b/storage/spider/mysql-test/spider/bg/t/direct_aggregate_part.test
new file mode 100644
index 00000000..aebf210c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/direct_aggregate_part.test
@@ -0,0 +1,192 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+if (!$HAVE_PARTITION)
+{
+  --disable_query_log
+  --disable_result_log
+  --source test_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo with partition test
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1;
+  eval CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_COMMENT2_P_2_1;
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (1, 'a', '2008-08-01 10:21:39'),
+    (2, 'b', '2000-01-01 00:00:00'),
+    (3, 'e', '2007-06-04 20:03:11'),
+    (4, 'd', '2003-11-30 05:01:03'),
+    (5, 'c', '2001-12-31 23:59:59');
+  --enable_query_log
+  eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+  SELECT COUNT(*) FROM ta_l2;
+  eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+  SELECT MAX(a) FROM ta_l2;
+  eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+  SELECT MIN(a) FROM ta_l2;
+  eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+  SELECT MAX(a) FROM ta_l2 WHERE a < 5;
+  eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+  SELECT MIN(a) FROM ta_l2 WHERE a > 1;
+  eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%handler %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%handler %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bg/t/direct_update.test b/storage/spider/mysql-test/spider/bg/t/direct_update.test
new file mode 100644
index 00000000..e0901062
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/direct_update.test
@@ -0,0 +1,198 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO ta_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+
+--echo
+--echo direct_updating test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo update all rows with function
+UPDATE ta_l SET c = ADDDATE(c, 1);
+eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo update by primary key
+UPDATE ta_l SET b = 'x' WHERE a = 3;
+eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo update by a column without index
+UPDATE ta_l SET c = '2011-10-17' WHERE b = 'x';
+eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo update by primary key with order and limit
+UPDATE ta_l SET c = ADDDATE(c, 1) WHERE a < 4 ORDER BY b DESC LIMIT 1;
+eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo delete by primary key with order and limit
+DELETE FROM ta_l WHERE a < 4 ORDER BY c LIMIT 1;
+eval $MASTER_1_CHECK_DIRECT_DELETE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo delete by a column without index
+DELETE FROM ta_l WHERE b = 'c';
+eval $MASTER_1_CHECK_DIRECT_DELETE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo delete by primary key
+DELETE FROM ta_l WHERE a = 3;
+eval $MASTER_1_CHECK_DIRECT_DELETE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%handler %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bg/t/direct_update_part.test b/storage/spider/mysql-test/spider/bg/t/direct_update_part.test
new file mode 100644
index 00000000..95e2e2ab
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/direct_update_part.test
@@ -0,0 +1,211 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+if (!$HAVE_PARTITION)
+{
+  --disable_query_log
+  --disable_result_log
+  --source test_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo with partition test
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1;
+  eval CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_COMMENT2_P_2_1;
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (1, 'a', '2008-08-01 10:21:39'),
+    (2, 'b', '2000-01-01 00:00:00'),
+    (3, 'e', '2007-06-04 20:03:11'),
+    (4, 'd', '2003-11-30 05:01:03'),
+    (5, 'c', '2001-12-31 23:59:59');
+  --enable_query_log
+  eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo update all rows with function
+  UPDATE ta_l2 SET c = ADDDATE(c, 1);
+  eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo update by primary key
+  UPDATE ta_l2 SET b = 'x' WHERE a = 3;
+  eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo update by a column without index
+  UPDATE ta_l2 SET c = '2011-10-17' WHERE b = 'x';
+  eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo update by primary key with order and limit
+  UPDATE ta_l2 SET c = ADDDATE(c, 1) WHERE a < 4 ORDER BY b DESC LIMIT 1;
+  eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo delete by primary key with order and limit
+  DELETE FROM ta_l2 WHERE a < 4 ORDER BY c LIMIT 1;
+  eval $MASTER_1_CHECK_DIRECT_DELETE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo delete by a column without index
+  DELETE FROM ta_l2 WHERE b = 'c';
+  eval $MASTER_1_CHECK_DIRECT_DELETE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo delete by primary key
+  DELETE FROM ta_l2 WHERE a = 3;
+  eval $MASTER_1_CHECK_DIRECT_DELETE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%handler %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%handler %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bg/t/function.test b/storage/spider/mysql-test/spider/bg/t/function.test
new file mode 100644
index 00000000..ec2eeab9
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/function.test
@@ -0,0 +1,253 @@
+# This test tests for using functions
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo in()
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_result_log
+  }
+  --disable_query_log
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    echo CHILD2_1_DROP_TEXT_PK_TABLES1;
+    echo CHILD2_1_CREATE_TEXT_PK_TABLES1;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TEXT_PK_TABLES1;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TEXT_PK_TABLES1;
+  --enable_query_log
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_query_log
+echo CREATE TABLE t1 (
+  a VARCHAR(255),
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET3 MASTER_1_COMMENT_TEXT_PK1_1;
+eval CREATE TABLE t1 (
+  a VARCHAR(255),
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET3 $MASTER_1_COMMENT_TEXT_PK1_1;
+--enable_query_log
+insert into t1 values ('1');
+insert into t1 select a + 1 from t1;
+insert into t1 select a + 2 from t1;
+insert into t1 select a + 4 from t1;
+insert into t1 select a + 8 from t1;
+insert into t1 select a + 16 from t1;
+insert into t1 select a + 32 from t1;
+insert into t1 select a + 64 from t1;
+insert into t1 select a + 128 from t1;
+insert into t1 select a + 256 from t1;
+insert into t1 select a + 512 from t1;
+flush tables;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+select a from t1 where a in ('15', '120');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TEXT_PK_TABLES1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo date_sub()
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO ta_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 YEAR);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 QUARTER);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 MONTH);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 WEEK);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 DAY);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 HOUR);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 MINUTE);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 SECOND);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bg/t/ha.test b/storage/spider/mysql-test/spider/bg/t/ha.test
new file mode 100644
index 00000000..c12930e4
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/ha.test
@@ -0,0 +1,878 @@
+# This test tests for ha features
+if ($USE_HA_TEST)
+{
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--source ha_test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+  --connection child2_3
+  DROP DATABASE IF EXISTS auto_test_remote3;
+  CREATE DATABASE auto_test_remote3;
+  USE auto_test_remote3;
+}
+if ($USE_CHILD_GROUP3)
+{
+  --connection child3_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+  --connection child3_2
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+  --connection child3_3
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  --connection child2_3
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  SELECT 1;
+  --connection child3_2
+  SELECT 1;
+  --connection child3_3
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_2_DROP_TABLES;
+    echo CHILD2_2_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_2_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_2_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  --disable_warnings
+  eval $CHILD3_1_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  eval $CHILD3_1_CREATE_TABLES_HA_2_1;
+  --connection child3_2
+  --disable_warnings
+  eval $CHILD3_2_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  eval $CHILD3_2_CREATE_TABLES_HA_2_1;
+  --connection child3_3
+  --disable_warnings
+  eval $CHILD3_3_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  eval $CHILD3_3_CREATE_TABLES_HA_2_1;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_HA_2_1;
+--enable_query_log
+INSERT INTO ta_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+
+--echo
+--echo select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo fail-over test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_2_HA_DROP_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_2_HA_DROP_TABLES;
+  --enable_warnings
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_CHECK_HA_STATUS;
+--error 12511
+INSERT INTO ta_l (a, b, c) VALUES
+  (6, 'e', '2011-05-05 20:04:05');
+eval $MASTER_1_CHECK_LINK_STATUS;
+eval $MASTER_1_CHECK_LINK_FAILED_LOG;
+eval $MASTER_1_CHECK_HA_STATUS;
+INSERT INTO ta_l (a, b, c) VALUES
+  (6, 'e', '2011-05-05 20:04:05');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  eval $CHILD3_1_CHECK_LINK_STATUS;
+  eval $CHILD3_1_CHECK_LINK_FAILED_LOG;
+  --connection child3_2
+  eval $CHILD3_2_CHECK_LINK_STATUS;
+  eval $CHILD3_2_CHECK_LINK_FAILED_LOG;
+  --connection child3_3
+  eval $CHILD3_3_CHECK_LINK_STATUS;
+  eval $CHILD3_3_CHECK_LINK_FAILED_LOG;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo recovery test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_2_HA_CREATE_TABLES;
+  }
+  eval $CHILD2_2_HA_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  eval $CHILD3_1_SET_RECOVERY_STATUS_2_1;
+  eval $CHILD3_1_CHECK_LINK_STATUS;
+  --connection child3_2
+  eval $CHILD3_2_SET_RECOVERY_STATUS_2_1;
+  eval $CHILD3_2_CHECK_LINK_STATUS;
+  --connection child3_3
+  eval $CHILD3_3_SET_RECOVERY_STATUS_2_1;
+  eval $CHILD3_3_CHECK_LINK_STATUS;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_SET_RECOVERY_STATUS_2_1;
+eval $MASTER_1_CHECK_LINK_STATUS;
+eval $MASTER_1_COPY_TABLES_2_1;
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  eval $CHILD3_1_SET_OK_STATUS_2_1;
+  eval $CHILD3_1_CHECK_LINK_STATUS;
+  --connection child3_2
+  eval $CHILD3_2_SET_OK_STATUS_2_1;
+  eval $CHILD3_2_CHECK_LINK_STATUS;
+  --connection child3_3
+  eval $CHILD3_3_SET_OK_STATUS_2_1;
+  eval $CHILD3_3_CHECK_LINK_STATUS;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_SET_OK_STATUS_2_1;
+eval $MASTER_1_CHECK_LINK_STATUS;
+INSERT INTO ta_l (a, b, c) VALUES
+  (8, 'g', '2011-05-05 21:33:30');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+DROP TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  --disable_warnings
+  eval $CHILD3_1_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  --connection child3_2
+  --disable_warnings
+  eval $CHILD3_2_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  --connection child3_3
+  --disable_warnings
+  eval $CHILD3_3_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+eval $MASTER_1_CHANGE_HA_MON;
+
+--echo
+--echo active standby test
+--echo create table test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_2_DROP_TABLES;
+    echo CHILD2_2_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_2_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_2_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  --disable_warnings
+  eval $CHILD3_1_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  eval $CHILD3_1_CREATE_TABLES_HA_AS_2_1;
+  --connection child3_2
+  --disable_warnings
+  eval $CHILD3_2_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  eval $CHILD3_2_CREATE_TABLES_HA_AS_2_1;
+  --connection child3_3
+  --disable_warnings
+  eval $CHILD3_3_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  eval $CHILD3_3_CREATE_TABLES_HA_AS_2_1;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_AS_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_HA_AS_2_1;
+--enable_query_log
+INSERT INTO ta_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+
+--echo
+--echo select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo fail-over test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_HA_AS_DROP_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_HA_AS_DROP_TABLES;
+  --enable_warnings
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_CHECK_HA_STATUS;
+--error 12511
+INSERT INTO ta_l (a, b, c) VALUES
+  (6, 'e', '2011-05-05 20:04:05');
+eval $MASTER_1_CHECK_LINK_STATUS;
+eval $MASTER_1_CHECK_LINK_FAILED_LOG;
+eval $MASTER_1_CHECK_HA_STATUS;
+INSERT INTO ta_l (a, b, c) VALUES
+  (6, 'e', '2011-05-05 20:04:05');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  eval $CHILD3_1_CHECK_LINK_STATUS;
+  eval $CHILD3_1_CHECK_LINK_FAILED_LOG;
+  --connection child3_2
+  eval $CHILD3_2_CHECK_LINK_STATUS;
+  eval $CHILD3_2_CHECK_LINK_FAILED_LOG;
+  --connection child3_3
+  eval $CHILD3_3_CHECK_LINK_STATUS;
+  eval $CHILD3_3_CHECK_LINK_FAILED_LOG;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo recovery test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_HA_AS_CREATE_TABLES;
+  }
+  eval $CHILD2_1_HA_AS_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  eval $CHILD3_1_SET_OK_STATUS_AS_2_1;
+  eval $CHILD3_1_CHECK_LINK_STATUS;
+  --connection child3_2
+  eval $CHILD3_2_SET_OK_STATUS_AS_2_1;
+  eval $CHILD3_2_CHECK_LINK_STATUS;
+  --connection child3_3
+  eval $CHILD3_3_SET_OK_STATUS_AS_2_1;
+  eval $CHILD3_3_CHECK_LINK_STATUS;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_SET_OK_STATUS_AS_2_1;
+eval $MASTER_1_CHECK_LINK_STATUS;
+INSERT INTO ta_l (a, b, c) VALUES
+  (8, 'g', '2011-05-05 21:33:30');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+DROP TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  --disable_warnings
+  eval $CHILD3_1_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  --connection child3_2
+  --disable_warnings
+  eval $CHILD3_2_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  --connection child3_3
+  --disable_warnings
+  eval $CHILD3_3_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+eval $MASTER_1_CHANGE_HA_MON;
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  --connection child2_3
+  DROP DATABASE IF EXISTS auto_test_remote3;
+}
+if ($USE_CHILD_GROUP3)
+{
+  --connection child3_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  --connection child3_2
+  DROP DATABASE IF EXISTS auto_test_local;
+  --connection child3_3
+  DROP DATABASE IF EXISTS auto_test_local;
+}
+--disable_query_log
+--disable_result_log
+--source ha_test_deinit.inc
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+}
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bg/t/ha_part.test b/storage/spider/mysql-test/spider/bg/t/ha_part.test
new file mode 100644
index 00000000..72ddcfd1
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/ha_part.test
@@ -0,0 +1,1017 @@
+# This test tests for ha features
+if ($USE_HA_TEST)
+{
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--source ha_test_init.inc
+--enable_result_log
+--enable_query_log
+if (!$HAVE_PARTITION)
+{
+  --disable_query_log
+  --disable_result_log
+  --source ha_test_deinit.inc
+  --source test_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+  --connection child2_3
+  DROP DATABASE IF EXISTS auto_test_remote3;
+  CREATE DATABASE auto_test_remote3;
+  USE auto_test_remote3;
+}
+if ($USE_CHILD_GROUP3)
+{
+  --connection child3_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+  --connection child3_2
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+  --connection child3_3
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  --connection child2_3
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  SELECT 1;
+  --connection child3_2
+  SELECT 1;
+  --connection child3_3
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+if ($HAVE_PARTITION)
+{
+  --echo
+  --echo create table with partition test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES;
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES;
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES;
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_3_DROP_TABLES;
+      echo CHILD2_3_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_3_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_3_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    --disable_warnings
+    eval $CHILD3_1_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    eval $CHILD3_1_CREATE_TABLES_HA_P_2_1;
+    --connection child3_2
+    --disable_warnings
+    eval $CHILD3_2_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    eval $CHILD3_2_CREATE_TABLES_HA_P_2_1;
+    --connection child3_3
+    --disable_warnings
+    eval $CHILD3_3_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    eval $CHILD3_3_CREATE_TABLES_HA_P_2_1;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_warnings
+  DROP TABLE IF EXISTS ta_l2;
+  --enable_warnings
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_P_2_1;
+  eval CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_HA_P_2_1;
+  --enable_query_log
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (1, 'a', '2008-08-01 10:21:39'),
+    (2, 'b', '2000-01-01 00:00:00'),
+    (3, 'e', '2007-06-04 20:03:11'),
+    (4, 'd', '2003-11-30 05:01:03'),
+    (5, 'c', '2001-12-31 23:59:59');
+
+  --echo
+  --echo select test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    eval $CHILD2_1_SELECT_TABLES2;
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_3_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+
+  --echo
+  --echo fail-over test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_3_HA_DROP_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_3_HA_DROP_TABLES;
+    --enable_warnings
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  eval $MASTER_1_CHECK_HA_STATUS;
+  --error 12511
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (6, 'e', '2011-05-05 20:04:05');
+  eval $MASTER_1_CHECK_LINK_STATUS;
+  eval $MASTER_1_CHECK_LINK_FAILED_LOG;
+  eval $MASTER_1_CHECK_HA_STATUS;
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (6, 'e', '2011-05-05 20:04:05');
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    eval $CHILD2_1_SELECT_TABLES2;
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    eval $CHILD3_1_CHECK_LINK_STATUS;
+    eval $CHILD3_1_CHECK_LINK_FAILED_LOG;
+    --connection child3_2
+    eval $CHILD3_2_CHECK_LINK_STATUS;
+    eval $CHILD3_2_CHECK_LINK_FAILED_LOG;
+    --connection child3_3
+    eval $CHILD3_3_CHECK_LINK_STATUS;
+    eval $CHILD3_3_CHECK_LINK_FAILED_LOG;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+
+  --echo
+  --echo recovery test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_3_HA_CREATE_TABLES;
+    }
+    eval $CHILD2_3_HA_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    eval $CHILD3_1_SET_RECOVERY_STATUS_P_2_1;
+    eval $CHILD3_1_CHECK_LINK_STATUS;
+    --connection child3_2
+    eval $CHILD3_2_SET_RECOVERY_STATUS_P_2_1;
+    eval $CHILD3_2_CHECK_LINK_STATUS;
+    --connection child3_3
+    eval $CHILD3_3_SET_RECOVERY_STATUS_P_2_1;
+    eval $CHILD3_3_CHECK_LINK_STATUS;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  eval $MASTER_1_SET_RECOVERY_STATUS_P_2_1;
+  eval $MASTER_1_CHECK_LINK_STATUS;
+  eval $MASTER_1_COPY_TABLES_P_2_1;
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    eval $CHILD3_1_SET_OK_STATUS_P_2_1;
+    eval $CHILD3_1_CHECK_LINK_STATUS;
+    --connection child3_2
+    eval $CHILD3_2_SET_OK_STATUS_P_2_1;
+    eval $CHILD3_2_CHECK_LINK_STATUS;
+    --connection child3_3
+    eval $CHILD3_3_SET_OK_STATUS_P_2_1;
+    eval $CHILD3_3_CHECK_LINK_STATUS;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  eval $MASTER_1_SET_OK_STATUS_P_2_1;
+  eval $MASTER_1_CHECK_LINK_STATUS;
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (8, 'g', '2011-05-05 21:33:30'),
+    (9, 'h', '2011-05-05 22:32:10');
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  DROP TABLE ta_l2;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    eval $CHILD2_1_SELECT_TABLES2;
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_3_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    --disable_warnings
+    eval $CHILD3_1_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    --connection child3_2
+    --disable_warnings
+    eval $CHILD3_2_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    --connection child3_3
+    --disable_warnings
+    eval $CHILD3_3_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+if ($HAVE_PARTITION)
+{
+  --echo
+  --echo create table with partition test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES;
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES;
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES;
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_3_DROP_TABLES;
+      echo CHILD2_3_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_3_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_3_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    --disable_warnings
+    eval $CHILD3_1_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    eval $CHILD3_1_CREATE_TABLES_HA_AS_P_2_1;
+    --connection child3_2
+    --disable_warnings
+    eval $CHILD3_2_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    eval $CHILD3_2_CREATE_TABLES_HA_AS_P_2_1;
+    --connection child3_3
+    --disable_warnings
+    eval $CHILD3_3_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    eval $CHILD3_3_CREATE_TABLES_HA_AS_P_2_1;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_warnings
+  DROP TABLE IF EXISTS ta_l2;
+  --enable_warnings
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_AS_P_2_1;
+  eval CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_HA_AS_P_2_1;
+  --enable_query_log
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (1, 'a', '2008-08-01 10:21:39'),
+    (2, 'b', '2000-01-01 00:00:00'),
+    (3, 'e', '2007-06-04 20:03:11'),
+    (4, 'd', '2003-11-30 05:01:03'),
+    (5, 'c', '2001-12-31 23:59:59');
+
+  --echo
+  --echo select test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    eval $CHILD2_1_SELECT_TABLES2;
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_3_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+
+  --echo
+  --echo fail-over test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_HA_AS_DROP_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_HA_AS_DROP_TABLES2;
+    --enable_warnings
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  eval $MASTER_1_CHECK_HA_STATUS;
+  --error 12511
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (6, 'e', '2011-05-05 20:04:05');
+  eval $MASTER_1_CHECK_LINK_STATUS;
+  eval $MASTER_1_CHECK_LINK_FAILED_LOG;
+  eval $MASTER_1_CHECK_HA_STATUS;
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (6, 'e', '2011-05-05 20:04:05');
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_3_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    eval $CHILD3_1_CHECK_LINK_STATUS;
+    eval $CHILD3_1_CHECK_LINK_FAILED_LOG;
+    --connection child3_2
+    eval $CHILD3_2_CHECK_LINK_STATUS;
+    eval $CHILD3_2_CHECK_LINK_FAILED_LOG;
+    --connection child3_3
+    eval $CHILD3_3_CHECK_LINK_STATUS;
+    eval $CHILD3_3_CHECK_LINK_FAILED_LOG;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+
+  --echo
+  --echo recovery test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_HA_AS_CREATE_TABLES2;
+    }
+    eval $CHILD2_1_HA_AS_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    eval $CHILD3_1_SET_OK_STATUS_AS_P_2_1;
+    eval $CHILD3_1_CHECK_LINK_STATUS;
+    --connection child3_2
+    eval $CHILD3_2_SET_OK_STATUS_AS_P_2_1;
+    eval $CHILD3_2_CHECK_LINK_STATUS;
+    --connection child3_3
+    eval $CHILD3_3_SET_OK_STATUS_AS_P_2_1;
+    eval $CHILD3_3_CHECK_LINK_STATUS;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  eval $MASTER_1_SET_OK_STATUS_AS_P_2_1;
+  eval $MASTER_1_CHECK_LINK_STATUS;
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (8, 'g', '2011-05-05 21:33:30'),
+    (9, 'h', '2011-05-05 22:32:10');
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  DROP TABLE ta_l2;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    eval $CHILD2_1_SELECT_TABLES2;
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_3_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    --disable_warnings
+    eval $CHILD3_1_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    --connection child3_2
+    --disable_warnings
+    eval $CHILD3_2_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    --connection child3_3
+    --disable_warnings
+    eval $CHILD3_3_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  --connection child2_3
+  DROP DATABASE IF EXISTS auto_test_remote3;
+}
+if ($USE_CHILD_GROUP3)
+{
+  --connection child3_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  --connection child3_2
+  DROP DATABASE IF EXISTS auto_test_local;
+  --connection child3_3
+  DROP DATABASE IF EXISTS auto_test_local;
+}
+--disable_query_log
+--disable_result_log
+--source ha_test_deinit.inc
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+}
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bg/t/ha_test_deinit.inc b/storage/spider/mysql-test/spider/bg/t/ha_test_deinit.inc
new file mode 100644
index 00000000..53d0409d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/ha_test_deinit.inc
@@ -0,0 +1,30 @@
+# get connection and exist engine test
+--echo for master_1
+--connection master_1
+--source ../include/ha_deinit_master_1.inc
+--echo for child2
+if ($USE_CHILD_GROUP2)
+{
+  --echo child2_1
+  --connection child2_1
+  --source ../include/ha_deinit_child2_1.inc
+  --echo child2_2
+  --connection child2_2
+  --source ../include/ha_deinit_child2_2.inc
+  --echo child2_3
+  --connection child2_3
+  --source ../include/ha_deinit_child2_3.inc
+}
+--echo for child3
+if ($USE_CHILD_GROUP3)
+{
+  --echo child3_1
+  --connection child3_1
+  --source ../include/ha_deinit_child3_1.inc
+  --echo child3_2
+  --connection child3_2
+  --source ../include/ha_deinit_child3_2.inc
+  --echo child3_3
+  --connection child3_3
+  --source ../include/ha_deinit_child3_3.inc
+}
diff --git a/storage/spider/mysql-test/spider/bg/t/ha_test_init.inc b/storage/spider/mysql-test/spider/bg/t/ha_test_init.inc
new file mode 100644
index 00000000..70576ab1
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/ha_test_init.inc
@@ -0,0 +1,30 @@
+# get connection and exist engine test
+--echo for master_1
+--connection master_1
+--source ../include/ha_init_master_1.inc
+--echo for child2
+if ($USE_CHILD_GROUP2)
+{
+  --echo child2_1
+  --connection child2_1
+  --source ../include/ha_init_child2_1.inc
+  --echo child2_2
+  --connection child2_2
+  --source ../include/ha_init_child2_2.inc
+  --echo child2_3
+  --connection child2_3
+  --source ../include/ha_init_child2_3.inc
+}
+--echo for child3
+if ($USE_CHILD_GROUP3)
+{
+  --echo child3_1
+  --connection child3_1
+  --source ../include/ha_init_child3_1.inc
+  --echo child3_2
+  --connection child3_2
+  --source ../include/ha_init_child3_2.inc
+  --echo child3_3
+  --connection child3_3
+  --source ../include/ha_init_child3_3.inc
+}
diff --git a/storage/spider/mysql-test/spider/bg/t/have_engine.inc b/storage/spider/mysql-test/spider/bg/t/have_engine.inc
new file mode 100644
index 00000000..64bef749
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/have_engine.inc
@@ -0,0 +1,7 @@
+if (!`SELECT count(*) FROM information_schema.engines WHERE
+      (support = 'YES' OR support = 'DEFAULT') AND
+      engine = '$TEST_ENGINE_TYPE'`)
+{
+  SELECT engine, support FROM information_schema.engines;
+  --let $SKIP_REASON= "Need $TEST_ENGINE_TYPE engine"
+}
diff --git a/storage/spider/mysql-test/spider/bg/t/have_func.inc b/storage/spider/mysql-test/spider/bg/t/have_func.inc
new file mode 100644
index 00000000..e0823e73
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/have_func.inc
@@ -0,0 +1,5 @@
+if (!`SELECT count(*) FROM mysql.func WHERE name = '$TEST_FUNC_NAME'`)
+{
+  SELECT name FROM mysql.func;
+  --let $SKIP_REASON= "Need $TEST_FUNC_NAME function"
+}
diff --git a/storage/spider/mysql-test/spider/bg/t/have_partition.inc b/storage/spider/mysql-test/spider/bg/t/have_partition.inc
new file mode 100644
index 00000000..b6e69947
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/have_partition.inc
@@ -0,0 +1,7 @@
+let $HAVE_PARTITION= 0;
+if (`SELECT count(*) FROM information_schema.plugins WHERE
+      plugin_status = 'ACTIVE' AND
+      plugin_name = 'partition'`)
+{
+  let $HAVE_PARTITION= 1;
+}
diff --git a/storage/spider/mysql-test/spider/bg/t/have_trigger.inc b/storage/spider/mysql-test/spider/bg/t/have_trigger.inc
new file mode 100644
index 00000000..32de484b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/have_trigger.inc
@@ -0,0 +1,2 @@
+let $HAVE_TRIGGER= `SELECT COUNT(*) FROM information_schema.tables
+  WHERE TABLE_SCHEMA = 'information_schema' AND TABLE_NAME = 'TRIGGERS'`;
diff --git a/storage/spider/mysql-test/spider/bg/t/hs_test_deinit.inc b/storage/spider/mysql-test/spider/bg/t/hs_test_deinit.inc
new file mode 100644
index 00000000..7ec2e981
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/hs_test_deinit.inc
@@ -0,0 +1,17 @@
+# get connection and exist engine test
+--echo for master_1
+--connection master_1
+--source ../include/hs_deinit_master_1.inc
+--echo for child2
+if ($USE_CHILD_GROUP2)
+{
+  --echo child2_1
+  --connection child2_1
+  --source ../include/hs_deinit_child2_1.inc
+  --echo child2_2
+  --connection child2_2
+  --source ../include/hs_deinit_child2_2.inc
+  --echo child2_3
+  --connection child2_3
+  --source ../include/hs_deinit_child2_3.inc
+}
diff --git a/storage/spider/mysql-test/spider/bg/t/hs_test_init.inc b/storage/spider/mysql-test/spider/bg/t/hs_test_init.inc
new file mode 100644
index 00000000..831bf479
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/hs_test_init.inc
@@ -0,0 +1,17 @@
+# get connection and exist engine test
+--echo for master_1
+--connection master_1
+--source ../include/hs_init_master_1.inc
+--echo for child2
+if ($USE_CHILD_GROUP2)
+{
+  --echo child2_1
+  --connection child2_1
+  --source ../include/hs_init_child2_1.inc
+  --echo child2_2
+  --connection child2_2
+  --source ../include/hs_init_child2_2.inc
+  --echo child2_3
+  --connection child2_3
+  --source ../include/hs_init_child2_3.inc
+}
diff --git a/storage/spider/mysql-test/spider/bg/t/slave_test_deinit.inc b/storage/spider/mysql-test/spider/bg/t/slave_test_deinit.inc
new file mode 100644
index 00000000..e9d99b7a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/slave_test_deinit.inc
@@ -0,0 +1,6 @@
+# get connection and exist engine test
+--echo for slave1_1
+--connection slave1_1
+STOP SLAVE;
+--source ../include/deinit_slave1_1.inc
+--disconnect slave1_1
diff --git a/storage/spider/mysql-test/spider/bg/t/slave_test_init.inc b/storage/spider/mysql-test/spider/bg/t/slave_test_init.inc
new file mode 100644
index 00000000..739d8897
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/slave_test_init.inc
@@ -0,0 +1,44 @@
+# get connection and exist engine test
+--echo for slave1_1
+--source connect_slave1_1.inc
+--connection slave1_1
+SET SESSION sql_log_bin= 0;
+--let $SLAVE1_1_SERVER_ID=`SELECT @@global.server_id`
+--let $TEST_ENGINE_TYPE= $SLAVE1_1_ENGINE_TYPE
+--source have_partition.inc
+--source have_trigger.inc
+--source ../include/init_slave1_1.inc
+--source have_engine.inc
+--let $SLAVE1_1_SLAVE_STATUS=`SHOW SLAVE STATUS`
+if (!$SLAVE1_1_SLAVE_STATUS)
+{
+  eval CHANGE MASTER TO
+    MASTER_HOST = '127.0.0.1',
+    MASTER_USER = 'root',
+    MASTER_PASSWORD = '',
+    MASTER_PORT = $MASTER_1_MYPORT
+  ;
+}
+START SLAVE;
+--connection master_1
+call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+--connection slave1_1
+call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+  --connection child2_2
+  call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+  --connection child2_3
+  call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+}
+if ($USE_CHILD_GROUP3)
+{
+  --connection child3_1
+  call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+  --connection child3_2
+  call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+  --connection child3_3
+  call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+}
diff --git a/storage/spider/mysql-test/spider/bg/t/spider3_fixes.test b/storage/spider/mysql-test/spider/bg/t/spider3_fixes.test
new file mode 100644
index 00000000..13fa6f5f
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/spider3_fixes.test
@@ -0,0 +1,292 @@
+# This test tests for Spider 3.0's bug fixes
+source include/have_log_bin.inc;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--source slave_test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+
+--echo
+--echo 3.1
+--echo auto_increment
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_INCREMENT_TABLES1;
+    echo CHILD2_1_CREATE_INCREMENT_TABLES1;
+    echo CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+    echo CHILD2_1_AUTO_INCREMENT_OFFSET2;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_INCREMENT_TABLES1;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_INCREMENT_TABLES1;
+  eval $CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+  eval $CHILD2_1_AUTO_INCREMENT_OFFSET2;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+if ($USE_REPLICATION)
+{
+  save_master_pos;
+  --connection slave1_1
+  sync_with_master;
+  --connection master_1
+  --disable_query_log
+  SET SESSION sql_log_bin= 0;
+  --enable_query_log
+}
+--disable_warnings
+DROP TABLE IF EXISTS t1, t2;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE t1 (
+  id int(11) NOT NULL AUTO_INCREMENT,
+  PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_1;
+echo CREATE TABLE t2 (
+  id int(11) NOT NULL AUTO_INCREMENT,
+  PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_1;
+echo MASTER_1_AUTO_INCREMENT_INCREMENT2;
+echo MASTER_1_AUTO_INCREMENT_OFFSET2;
+eval CREATE TABLE t1 (
+  id int(11) NOT NULL AUTO_INCREMENT,
+  PRIMARY KEY (id)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_INCREMENT1_1;
+eval CREATE TABLE t2 (
+  id int(11) NOT NULL AUTO_INCREMENT,
+  PRIMARY KEY (id)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_INCREMENT1_1;
+eval $MASTER_1_AUTO_INCREMENT_INCREMENT2;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET2;
+if ($USE_REPLICATION)
+{
+  SET SESSION sql_log_bin= 1;
+  --connection slave1_1
+  --disable_warnings
+  DROP TABLE IF EXISTS t1, t2;
+  --enable_warnings
+  echo CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_1;
+  echo CREATE TABLE t2 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_1;
+  eval CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $SLAVE1_1_ENGINE $SLAVE1_1_CHARSET $SLAVE1_1_COMMENT_INCREMENT1_1;
+  eval CREATE TABLE t2 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $SLAVE1_1_ENGINE $SLAVE1_1_CHARSET $SLAVE1_1_COMMENT_INCREMENT1_1;
+  --connection master_1
+}
+--enable_query_log
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t2 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t2;
+--disable_query_log
+echo MASTER_1_AUTO_INCREMENT_OFFSET3;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET3;
+--enable_query_log
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+--disable_query_log
+echo MASTER_1_AUTO_INCREMENT_OFFSET4;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET4;
+--enable_query_log
+INSERT INTO t2 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t2;
+--disable_query_log
+echo MASTER_1_AUTO_INCREMENT_OFFSET3;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET3;
+--enable_query_log
+INSERT INTO t1 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+SELECT id FROM t1 ORDER BY id;
+--disable_query_log
+echo MASTER_1_AUTO_INCREMENT_OFFSET4;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET4;
+--enable_query_log
+INSERT INTO t2 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+SELECT id FROM t2 ORDER BY id;
+TRUNCATE TABLE t1;
+TRUNCATE TABLE t2;
+INSERT INTO t1 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+SELECT id FROM t1 ORDER BY id;
+INSERT INTO t2 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+SELECT id FROM t2 ORDER BY id;
+SET INSERT_ID=5000;
+--disable_query_log
+echo MASTER_1_AUTO_INCREMENT_OFFSET3;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET3;
+--enable_query_log
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+--disable_query_log
+echo MASTER_1_AUTO_INCREMENT_OFFSET4;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET4;
+--enable_query_log
+INSERT INTO t2 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t2;
+INSERT INTO t1 (id) VALUES (10000);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t2 (id) VALUES (1000);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t2;
+if ($USE_REPLICATION)
+{
+  save_master_pos;
+  --connection slave1_1
+  sync_with_master;
+  SELECT id FROM t1 ORDER BY id;
+  --connection master_1
+  --disable_query_log
+  SET SESSION sql_log_bin= 0;
+  --enable_query_log
+}
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_INCREMENT_TABLES1;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+    echo CHILD2_1_AUTO_INCREMENT_OFFSET1;
+  }
+  eval $CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+  eval $CHILD2_1_AUTO_INCREMENT_OFFSET1;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source slave_test_deinit.inc
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bg/t/spider3_fixes_part.test b/storage/spider/mysql-test/spider/bg/t/spider3_fixes_part.test
new file mode 100644
index 00000000..3288c490
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/spider3_fixes_part.test
@@ -0,0 +1,345 @@
+# This test tests for Spider 3.0's bug fixes
+source include/have_log_bin.inc;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--source slave_test_init.inc
+--enable_result_log
+--enable_query_log
+if (!$HAVE_PARTITION)
+{
+  --disable_query_log
+  --disable_result_log
+  --source slave_test_deinit.inc
+  --source test_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+
+--echo auto_increment with partition
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_INCREMENT_TABLES1;
+      echo CHILD2_1_CREATE_INCREMENT_TABLES1;
+      echo CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+      echo CHILD2_1_AUTO_INCREMENT_OFFSET2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_INCREMENT_TABLES1;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_INCREMENT_TABLES1;
+    eval $CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+    eval $CHILD2_1_AUTO_INCREMENT_OFFSET2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_INCREMENT_TABLES1;
+      echo CHILD2_2_CREATE_INCREMENT_TABLES1;
+      echo CHILD2_2_AUTO_INCREMENT_INCREMENT2;
+      echo CHILD2_2_AUTO_INCREMENT_OFFSET2;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_INCREMENT_TABLES1;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_INCREMENT_TABLES1;
+    eval $CHILD2_2_AUTO_INCREMENT_INCREMENT2;
+    eval $CHILD2_2_AUTO_INCREMENT_OFFSET2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  if ($USE_REPLICATION)
+  {
+    save_master_pos;
+    --connection slave1_1
+    sync_with_master;
+    --connection master_1
+    --disable_query_log
+    SET SESSION sql_log_bin= 0;
+    --enable_query_log
+  }
+  --disable_warnings
+  DROP TABLE IF EXISTS t1, t2;
+  --enable_warnings
+  --disable_query_log
+  echo CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_P_1;
+  echo CREATE TABLE t2 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_P_1;
+  echo MASTER_1_AUTO_INCREMENT_INCREMENT2;
+  echo MASTER_1_AUTO_INCREMENT_OFFSET2;
+  eval CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_INCREMENT1_P_1;
+  eval CREATE TABLE t2 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_INCREMENT1_P_1;
+  eval $MASTER_1_AUTO_INCREMENT_INCREMENT2;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET2;
+  if ($USE_REPLICATION)
+  {
+    SET SESSION sql_log_bin= 1;
+    --connection slave1_1
+    --disable_warnings
+    DROP TABLE IF EXISTS t1, t2;
+    --enable_warnings
+    echo CREATE TABLE t1 (
+      id int(11) NOT NULL AUTO_INCREMENT,
+      PRIMARY KEY (id)
+    ) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_P_1;
+    echo CREATE TABLE t2 (
+      id int(11) NOT NULL AUTO_INCREMENT,
+      PRIMARY KEY (id)
+    ) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_P_1;
+    eval CREATE TABLE t1 (
+      id int(11) NOT NULL AUTO_INCREMENT,
+      PRIMARY KEY (id)
+    ) $SLAVE1_1_ENGINE $SLAVE1_1_CHARSET $SLAVE1_1_COMMENT_INCREMENT1_P_1;
+    eval CREATE TABLE t2 (
+      id int(11) NOT NULL AUTO_INCREMENT,
+      PRIMARY KEY (id)
+    ) $SLAVE1_1_ENGINE $SLAVE1_1_CHARSET $SLAVE1_1_COMMENT_INCREMENT1_P_1;
+    --connection master_1
+  }
+  --enable_query_log
+  INSERT INTO t1 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t2 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t2;
+  --disable_query_log
+  echo MASTER_1_AUTO_INCREMENT_OFFSET3;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET3;
+  --enable_query_log
+  INSERT INTO t1 (id) VALUES (null);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  --disable_query_log
+  echo MASTER_1_AUTO_INCREMENT_OFFSET4;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET4;
+  --enable_query_log
+  INSERT INTO t2 (id) VALUES (null);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t2;
+  --disable_query_log
+  echo MASTER_1_AUTO_INCREMENT_OFFSET3;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET3;
+  --enable_query_log
+  INSERT INTO t1 () VALUES (),(),(),();
+  SELECT LAST_INSERT_ID();
+  SELECT id FROM t1 ORDER BY id;
+  --disable_query_log
+  echo MASTER_1_AUTO_INCREMENT_OFFSET4;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET4;
+  --enable_query_log
+  INSERT INTO t2 () VALUES (),(),(),();
+  SELECT LAST_INSERT_ID();
+  SELECT id FROM t2 ORDER BY id;
+  TRUNCATE TABLE t1;
+  TRUNCATE TABLE t2;
+  INSERT INTO t1 () VALUES (),(),(),();
+  SELECT LAST_INSERT_ID();
+  SELECT id FROM t1 ORDER BY id;
+  INSERT INTO t2 () VALUES (),(),(),();
+  SELECT LAST_INSERT_ID();
+  SELECT id FROM t2 ORDER BY id;
+  SET INSERT_ID=5000;
+  --disable_query_log
+  echo MASTER_1_AUTO_INCREMENT_OFFSET3;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET3;
+  --enable_query_log
+  INSERT INTO t1 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  --disable_query_log
+  echo MASTER_1_AUTO_INCREMENT_OFFSET4;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET4;
+  --enable_query_log
+  INSERT INTO t2 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t2;
+  INSERT INTO t1 (id) VALUES (10000);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t2 (id) VALUES (1000);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t2;
+  if ($USE_REPLICATION)
+  {
+    save_master_pos;
+    --connection slave1_1
+    sync_with_master;
+    SELECT id FROM t1 ORDER BY id;
+    --connection master_1
+    --disable_query_log
+    SET SESSION sql_log_bin= 0;
+    --enable_query_log
+  }
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_1_SELECT_INCREMENT_TABLES1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+      echo CHILD2_1_AUTO_INCREMENT_OFFSET1;
+    }
+    eval $CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+    eval $CHILD2_1_AUTO_INCREMENT_OFFSET1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_2_SELECT_INCREMENT_TABLES1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_AUTO_INCREMENT_INCREMENT1;
+      echo CHILD2_2_AUTO_INCREMENT_OFFSET1;
+    }
+    eval $CHILD2_2_AUTO_INCREMENT_INCREMENT1;
+    eval $CHILD2_2_AUTO_INCREMENT_OFFSET1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source slave_test_deinit.inc
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bg/t/spider_fixes.test b/storage/spider/mysql-test/spider/bg/t/spider_fixes.test
new file mode 100644
index 00000000..04e806fb
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/spider_fixes.test
@@ -0,0 +1,1419 @@
+# This test tests for Spider's bug fixes
+source include/have_log_bin.inc;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--source slave_test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table and insert
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tb_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+eval CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+--enable_query_log
+INSERT INTO tb_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+
+--echo
+--echo 2.13
+--echo select table with "order by desc" and "<"
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+WHERE a < 5 ORDER BY a DESC LIMIT 3;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select table with "order by desc" and "<="
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+WHERE a <= 5 ORDER BY a DESC LIMIT 3;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo 2.14
+--echo update table with range scan and split_read
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l SET c = '2000-02-02 00:00:00' WHERE a > 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo 2.15
+--echo select table with range scan
+TRUNCATE TABLE ta_l;
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES6;
+    echo CHILD2_1_CREATE_TABLES6;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES6;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES6;
+  --enable_query_log
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_query_log
+echo CREATE TABLE ta_l (
+  a int(11) NOT NULL DEFAULT '0',
+  b char(1) DEFAULT NULL,
+  c datetime DEFAULT NULL,
+  PRIMARY KEY (a, b, c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT5_2_1;
+eval CREATE TABLE ta_l (
+  a int(11) NOT NULL DEFAULT '0',
+  b char(1) DEFAULT NULL,
+  c datetime DEFAULT NULL,
+  PRIMARY KEY (a, b, c)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT5_2_1;
+--enable_query_log
+INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b >= 'b'
+AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b > 'b'
+AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a >= 4 AND b = 'd'
+AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a > 4 AND b = 'c'
+AND c = '2001-12-31 23:59:59';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b <= 'd'
+AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b < 'e'
+AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a <= 4 AND b = 'b'
+AND c = '2000-01-01 00:00:00';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a < 4 AND b = 'b'
+AND c = '2000-01-01 00:00:00';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b >= 'b'
+AND b <= 'd' AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b > 'b'
+AND b < 'e' AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a <= 4 AND a >= 1
+AND b >= 'b' AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a < 4 AND a > 1
+AND b >= 'b' AND c = '2000-01-01 00:00:00';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo 2.16
+--echo auto_increment insert with trigger
+if ($HAVE_TRIGGER)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_result_log
+    }
+    --disable_query_log
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      echo CHILD2_1_DROP_TABLES4;
+      echo CHILD2_1_CREATE_TABLES4;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES4;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES4;
+    --enable_query_log
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l_auto_inc (
+    a INT AUTO_INCREMENT,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT3_2_1;
+  eval CREATE TABLE ta_l_auto_inc (
+    a INT AUTO_INCREMENT,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT3_2_1;
+  echo CREATE TABLE tc_l (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+  eval CREATE TABLE tc_l (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+  --enable_query_log
+  --eval CREATE TRIGGER ins_ta_l_auto_inc AFTER INSERT ON ta_l_auto_inc FOR EACH ROW BEGIN INSERT INTO tc_l (a, b, c) VALUES (NEW.a, NEW.b, NEW.c); END;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  INSERT INTO ta_l_auto_inc (a, b, c) VALUES
+  (NULL, 's', '2008-12-31 20:59:59');
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_1_SELECT_TABLES4;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM tc_l ORDER BY a;
+}
+
+--echo
+--echo 2.17
+--echo engine-condition-pushdown with "or" and joining
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l WHERE a = 1 OR a IN (SELECT a FROM tb_l);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo 2.23
+--echo index merge
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_result_log
+  }
+  --disable_query_log
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    echo CHILD2_1_DROP_TABLES5;
+    echo CHILD2_1_CREATE_TABLES5;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES5;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES5;
+  --enable_query_log
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_query_log
+echo CREATE TABLE ta_l_int (
+  a INT AUTO_INCREMENT,
+  b INT DEFAULT 10,
+  c INT DEFAULT 11,
+  PRIMARY KEY(a),
+  KEY idx1(b),
+  KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1;
+eval CREATE TABLE ta_l_int (
+  a INT AUTO_INCREMENT,
+  b INT DEFAULT 10,
+  c INT DEFAULT 11,
+  PRIMARY KEY(a),
+  KEY idx1(b),
+  KEY idx2(c)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+--enable_query_log
+INSERT INTO ta_l_int (a, b, c) VALUES (1, 2, 3);
+INSERT INTO ta_l_int (a, b, c) SELECT a + 1, b + 1, c + 1 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 2, b + 2, c + 2 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 4, b + 4, c + 4 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 8, b + 8, c + 8 FROM ta_l_int;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l_int force index(primary, idx1, idx2)
+WHERE a = 5 OR b = 5 OR c = 5 ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo 2.24
+--echo index scan update without PK
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l_int;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l_int (
+  a INT NOT NULL,
+  b INT DEFAULT 10,
+  c INT DEFAULT 11,
+  KEY idx1(b),
+  KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1;
+if ($MASTER_1_NEEDPK)
+{
+  --error ER_REQUIRES_PRIMARY_KEY
+  eval CREATE TABLE ta_l_int (
+    a INT NOT NULL,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    KEY idx1(b),
+    KEY idx2(c)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+  eval CREATE TABLE ta_l_int (
+    a INT NOT NULL,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    PRIMARY KEY(a),
+    KEY idx1(b),
+    KEY idx2(c)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+}
+if (!$MASTER_1_NEEDPK)
+{
+  eval CREATE TABLE ta_l_int (
+    a INT NOT NULL,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    KEY idx1(b),
+    KEY idx2(c)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+}
+--enable_query_log
+SELECT a, b, c FROM ta_l_int ORDER BY a;
+INSERT INTO ta_l_int (a, b, c) VALUES (0, 2, 3);
+INSERT INTO ta_l_int (a, b, c) VALUES (18, 2, 3);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l_int SET c = 4 WHERE b = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%update %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l_int ORDER BY a;
+
+
+--echo
+--echo 2.25
+--echo direct order limit
+--connection master_1
+eval $MASTER_1_CHECK_DIRECT_ORDER_LIMIT_STATUS;
+SELECT a, b, c FROM ta_l_int ORDER BY a LIMIT 3;
+eval $MASTER_1_CHECK_DIRECT_ORDER_LIMIT_STATUS;
+
+
+--echo
+--echo 2.26
+--echo lock tables
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_LOCK_TABLES1;
+    echo CHILD2_1_DROP_LOCK_TABLES2;
+    echo CHILD2_1_CREATE_LOCK_TABLES1;
+    echo CHILD2_1_CREATE_LOCK_TABLES2;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_LOCK_TABLES1;
+  eval $CHILD2_1_DROP_LOCK_TABLES2;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_LOCK_TABLES1;
+  eval $CHILD2_1_CREATE_LOCK_TABLES2;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_2_DROP_LOCK_TABLES1;
+    echo CHILD2_2_DROP_LOCK_TABLES2;
+    echo CHILD2_2_CREATE_LOCK_TABLES1;
+    echo CHILD2_2_CREATE_LOCK_TABLES2;
+  }
+  --disable_warnings
+  eval $CHILD2_2_DROP_LOCK_TABLES1;
+  eval $CHILD2_2_DROP_LOCK_TABLES2;
+  --enable_warnings
+  eval $CHILD2_2_CREATE_LOCK_TABLES1;
+  eval $CHILD2_2_CREATE_LOCK_TABLES2;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS t1;
+DROP TABLE IF EXISTS t2;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE t1 (
+  id int(11) NOT NULL,
+  PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_LOCK1;
+eval CREATE TABLE t1 (
+  id int(11) NOT NULL,
+  PRIMARY KEY (id)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_LOCK1;
+echo CREATE TABLE t2 (
+  id int(11) NOT NULL,
+  PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_LOCK2;
+eval CREATE TABLE t2 (
+  id int(11) NOT NULL,
+  PRIMARY KEY (id)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_LOCK2;
+--enable_query_log
+LOCK TABLES t1 READ, t2 READ;
+UNLOCK TABLES;
+
+
+--echo
+--echo auto_increment
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_INCREMENT_TABLES1;
+    echo CHILD2_1_CREATE_INCREMENT_TABLES1;
+    echo CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+    echo CHILD2_1_AUTO_INCREMENT_OFFSET2;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_INCREMENT_TABLES1;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_INCREMENT_TABLES1;
+  eval $CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+  eval $CHILD2_1_AUTO_INCREMENT_OFFSET2;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+if ($USE_REPLICATION)
+{
+  save_master_pos;
+  --connection slave1_1
+  sync_with_master;
+  --connection master_1
+  --disable_query_log
+  SET SESSION sql_log_bin= 0;
+  --enable_query_log
+}
+--disable_warnings
+DROP TABLE IF EXISTS t1;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE t1 (
+  id int(11) NOT NULL AUTO_INCREMENT,
+  PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_1;
+echo MASTER_1_AUTO_INCREMENT_INCREMENT2;
+echo MASTER_1_AUTO_INCREMENT_OFFSET2;
+eval CREATE TABLE t1 (
+  id int(11) NOT NULL AUTO_INCREMENT,
+  PRIMARY KEY (id)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_INCREMENT1_1;
+eval $MASTER_1_AUTO_INCREMENT_INCREMENT2;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET2;
+if ($USE_REPLICATION)
+{
+  SET SESSION sql_log_bin= 1;
+  --connection slave1_1
+  --disable_warnings
+  DROP TABLE IF EXISTS t1;
+  --enable_warnings
+  echo CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_1;
+  eval CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $SLAVE1_1_ENGINE $SLAVE1_1_CHARSET $SLAVE1_1_COMMENT_INCREMENT1_1;
+  --connection master_1
+}
+--enable_query_log
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t1 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+SELECT id FROM t1 ORDER BY id;
+SET INSERT_ID=5000;
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t1 (id) VALUES (10000);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t1 (id) VALUES (1000);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+if ($USE_REPLICATION)
+{
+  save_master_pos;
+  --connection slave1_1
+  sync_with_master;
+  SELECT id FROM t1 ORDER BY id;
+  --connection master_1
+  --disable_query_log
+  SET SESSION sql_log_bin= 0;
+  --enable_query_log
+}
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_INCREMENT_TABLES1;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+    echo CHILD2_1_AUTO_INCREMENT_OFFSET1;
+  }
+  eval $CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+  eval $CHILD2_1_AUTO_INCREMENT_OFFSET1;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+
+--echo
+--echo read only
+let $MASTER_1_ENGINE_IS_SPIDER=
+  `SELECT IF('$MASTER_1_ENGINE_TYPE' = 'Spider' OR
+    '$MASTER_1_HIDDEN_ENGINE_TYPE' = 'Spider', 1, 0)`;
+if ($MASTER_1_ENGINE_IS_SPIDER)
+{
+  --connection master_1
+  --disable_warnings
+  DROP TABLE IF EXISTS t1;
+  --enable_warnings
+  --disable_query_log
+  echo CREATE TABLE t1 (
+    id int(11) NOT NULL,
+    PRIMARY KEY (id)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_READONLY1_1;
+  eval CREATE TABLE t1 (
+    id int(11) NOT NULL,
+    PRIMARY KEY (id)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_READONLY1_1;
+  --let $MIN_VAL= `SELECT MIN(id) FROM t1`
+  --enable_query_log
+  SELECT id FROM t1 ORDER BY id;
+  --error 12518
+  INSERT INTO t1 (id) VALUES (1);
+  --error 12518
+  eval UPDATE t1 SET id = 4 WHERE id = $MIN_VAL;
+  --error 12518
+  eval DELETE FROM t1 WHERE id = $MIN_VAL;
+  --error 12518
+  DELETE FROM t1;
+  --error 12518
+  TRUNCATE t1;
+}
+if (!$MASTER_1_ENGINE_IS_SPIDER)
+{
+  --echo skipped
+}
+
+
+--echo
+--echo 2.27
+--echo error mode
+if ($MASTER_1_ENGINE_IS_SPIDER)
+{
+  --connection master_1
+  --disable_warnings
+  DROP TABLE IF EXISTS t1;
+  --enable_warnings
+  --disable_query_log
+  echo CREATE TABLE t1 (
+    id int(11) NOT NULL,
+    PRIMARY KEY (id)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_ERROR_MODE1_1;
+  eval CREATE TABLE t1 (
+    id int(11) NOT NULL,
+    PRIMARY KEY (id)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_ERROR_MODE1_1;
+  --enable_query_log
+  SELECT id FROM t1 ORDER BY id;
+  INSERT INTO t1 (id) VALUES (1);
+  DELETE FROM t1;
+  TRUNCATE t1;
+}
+if (!$MASTER_1_ENGINE_IS_SPIDER)
+{
+  --echo skipped
+}
+
+
+--echo
+--echo 3.0
+--echo is null
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_result_log
+  }
+  --disable_query_log
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    echo CHILD2_1_DROP_TEXT_KEY_TABLES1;
+    echo CHILD2_1_CREATE_TEXT_KEY_TABLES1;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TEXT_KEY_TABLES1;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TEXT_KEY_TABLES1;
+  --enable_query_log
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS t1;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE t1 (
+  a VARCHAR(255),
+  b VARCHAR(255),
+  c VARCHAR(255),
+  KEY idx1(a,b),
+  KEY idx2(b),
+  PRIMARY KEY(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_TEXT_KEY1_1;
+eval CREATE TABLE t1 (
+  a VARCHAR(255),
+  b VARCHAR(255),
+  c VARCHAR(255),
+  KEY idx1(a,b),
+  KEY idx2(b),
+  PRIMARY KEY(c)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_TEXT_KEY1_1;
+--enable_query_log
+insert into t1 values (null, null, '2048');
+insert into t1 values ('1', '1', '1');
+insert into t1 select a + 1,   b + 1,   c + 1   from t1;
+insert into t1 select a + 2,   b + 2,   c + 2   from t1;
+insert into t1 select a + 4,   b + 4,   c + 4   from t1;
+insert into t1 select a + 8,   b + 8,   c + 8   from t1;
+insert into t1 select a + 16,  b + 16,  c + 16  from t1;
+insert into t1 select a + 32,  b + 32,  c + 32  from t1;
+insert into t1 select a + 64,  b + 64,  c + 64  from t1;
+insert into t1 select a + 128, b + 128, c + 128 from t1;
+insert into t1 select a + 256, b + 256, c + 256 from t1;
+insert into t1 select a + 512, b + 512, c + 512 from t1;
+flush tables;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+select a from t1 where a is null order by a limit 30;
+select b from t1 where b is null order by b limit 30;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TEXT_PK_TABLES1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+
+--echo
+--echo direct_order_limit
+--connection master_1
+TRUNCATE TABLE t1;
+insert into t1 values ('1', '1', '1');
+insert into t1 select a + 1,   b + 1,   c + 1   from t1;
+insert into t1 select a + 2,   b + 2,   c + 2   from t1;
+insert into t1 select a + 4,   b + 4,   c + 4   from t1;
+insert into t1 select a + 8,   b + 8,   c + 8   from t1;
+insert into t1 select a + 16,  b + 16,  c + 16  from t1;
+insert into t1 select a,       b + 32,  c + 32  from t1;
+insert into t1 select a,       b + 64,  c + 64  from t1;
+insert into t1 select a,       b + 128, c + 128 from t1;
+flush tables;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+select a, b, c from t1 where a = '10' and b <> '100' order by c desc limit 5;
+select a, c from t1 where a = '10' order by b desc limit 5;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TEXT_PK_TABLES1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source slave_test_deinit.inc
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bg/t/spider_fixes_part.test b/storage/spider/mysql-test/spider/bg/t/spider_fixes_part.test
new file mode 100644
index 00000000..ef5a8026
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/spider_fixes_part.test
@@ -0,0 +1,645 @@
+# This test tests for Spider's bug fixes
+source include/have_log_bin.inc;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--source slave_test_init.inc
+--enable_result_log
+--enable_query_log
+if (!$HAVE_PARTITION)
+{
+  --disable_query_log
+  --disable_result_log
+  --source slave_test_deinit.inc
+  --source test_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tb_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+eval CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+--enable_query_log
+INSERT INTO tb_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+
+--echo
+--echo 2.17
+--echo partition with sort
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1;
+  eval CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_COMMENT2_P_2_1;
+  --enable_query_log
+  INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 WHERE a > 1
+  ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo
+--echo 2.23
+--echo partition update with moving partition
+if ($HAVE_PARTITION)
+{
+  --connection master_1
+  --disable_warnings
+  DROP TABLE IF EXISTS ta_l2;
+  --enable_warnings
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1;
+  eval CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_COMMENT2_P_2_1;
+  --enable_query_log
+  INSERT INTO ta_l2 (a, b, c) VALUES (3, 'B', '2010-09-26 00:00:00');
+  UPDATE ta_l2 SET a = 4 WHERE a = 3;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%update %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%delete %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%update %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%delete %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo index merge with partition
+if ($HAVE_PARTITION)
+{
+  --connection master_1
+  --disable_warnings
+  DROP TABLE IF EXISTS ta_l_int;
+  --enable_warnings
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_result_log
+    }
+    --disable_query_log
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      echo CHILD2_2_DROP_TABLES5;
+      echo CHILD2_2_CREATE_TABLES5;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES5;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES5;
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      echo CHILD2_1_DROP_TABLES5;
+      echo CHILD2_1_CREATE_TABLES5;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES5;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES5;
+    --enable_query_log
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l_int (
+    a INT AUTO_INCREMENT,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    PRIMARY KEY(a),
+    KEY idx1(b),
+    KEY idx2(c)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT3_P_2_1;
+  eval CREATE TABLE ta_l_int (
+    a INT AUTO_INCREMENT,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    PRIMARY KEY(a),
+    KEY idx1(b),
+    KEY idx2(c)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT3_P_2_1;
+  --enable_query_log
+  INSERT INTO ta_l_int (a, b, c) VALUES (1, 2, 3);
+  INSERT INTO ta_l_int (a, b, c) SELECT a + 1, b + 1, c + 1 FROM ta_l_int;
+  INSERT INTO ta_l_int (a, b, c) SELECT a + 2, b + 2, c + 2 FROM ta_l_int;
+  INSERT INTO ta_l_int (a, b, c) SELECT a + 4, b + 4, c + 4 FROM ta_l_int;
+  INSERT INTO ta_l_int (a, b, c) SELECT a + 8, b + 8, c + 8 FROM ta_l_int;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, c FROM ta_l_int force index(primary, idx1, idx2)
+  WHERE a = 5 OR b = 5 OR c = 5 ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+
+--echo
+--echo 2.26
+--echo auto_increment with partition
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_INCREMENT_TABLES1;
+      echo CHILD2_1_CREATE_INCREMENT_TABLES1;
+      echo CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+      echo CHILD2_1_AUTO_INCREMENT_OFFSET2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_INCREMENT_TABLES1;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_INCREMENT_TABLES1;
+    eval $CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+    eval $CHILD2_1_AUTO_INCREMENT_OFFSET2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_INCREMENT_TABLES1;
+      echo CHILD2_2_CREATE_INCREMENT_TABLES1;
+      echo CHILD2_2_AUTO_INCREMENT_INCREMENT2;
+      echo CHILD2_2_AUTO_INCREMENT_OFFSET2;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_INCREMENT_TABLES1;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_INCREMENT_TABLES1;
+    eval $CHILD2_2_AUTO_INCREMENT_INCREMENT2;
+    eval $CHILD2_2_AUTO_INCREMENT_OFFSET2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  if ($USE_REPLICATION)
+  {
+    save_master_pos;
+    --connection slave1_1
+    sync_with_master;
+    --connection master_1
+    --disable_query_log
+    SET SESSION sql_log_bin= 0;
+    --enable_query_log
+  }
+  --disable_warnings
+  DROP TABLE IF EXISTS t1;
+  --enable_warnings
+  --disable_query_log
+  echo CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_P_1;
+  echo MASTER_1_AUTO_INCREMENT_INCREMENT2;
+  echo MASTER_1_AUTO_INCREMENT_OFFSET2;
+  eval CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_INCREMENT1_P_1;
+  eval $MASTER_1_AUTO_INCREMENT_INCREMENT2;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET2;
+  if ($USE_REPLICATION)
+  {
+    SET SESSION sql_log_bin= 1;
+    --connection slave1_1
+    --disable_warnings
+    DROP TABLE IF EXISTS t1;
+    --enable_warnings
+    echo CREATE TABLE t1 (
+      id int(11) NOT NULL AUTO_INCREMENT,
+      PRIMARY KEY (id)
+    ) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_P_1;
+    eval CREATE TABLE t1 (
+      id int(11) NOT NULL AUTO_INCREMENT,
+      PRIMARY KEY (id)
+    ) $SLAVE1_1_ENGINE $SLAVE1_1_CHARSET $SLAVE1_1_COMMENT_INCREMENT1_P_1;
+    --connection master_1
+  }
+  --enable_query_log
+  INSERT INTO t1 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t1 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t1 (id) VALUES (null);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t1 (id) VALUES (null);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t1 () VALUES (),(),(),();
+  SELECT LAST_INSERT_ID();
+  SELECT id FROM t1 ORDER BY id;
+  SET INSERT_ID=5000;
+  INSERT INTO t1 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t1 (id) VALUES (10000);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t1 (id) VALUES (1000);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  if ($USE_REPLICATION)
+  {
+    save_master_pos;
+    --connection slave1_1
+    sync_with_master;
+    SELECT id FROM t1 ORDER BY id;
+    --connection master_1
+    --disable_query_log
+    SET SESSION sql_log_bin= 0;
+    --enable_query_log
+  }
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_1_SELECT_INCREMENT_TABLES1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+      echo CHILD2_1_AUTO_INCREMENT_OFFSET1;
+    }
+    eval $CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+    eval $CHILD2_1_AUTO_INCREMENT_OFFSET1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_2_SELECT_INCREMENT_TABLES1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_AUTO_INCREMENT_INCREMENT1;
+      echo CHILD2_2_AUTO_INCREMENT_OFFSET1;
+    }
+    eval $CHILD2_2_AUTO_INCREMENT_INCREMENT1;
+    eval $CHILD2_2_AUTO_INCREMENT_OFFSET1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source slave_test_deinit.inc
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bg/t/test_deinit.inc b/storage/spider/mysql-test/spider/bg/t/test_deinit.inc
new file mode 100644
index 00000000..989bde26
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/test_deinit.inc
@@ -0,0 +1,37 @@
+# get connection and exist engine test
+--echo for master_1
+--connection master_1
+--source ../include/deinit_master_1.inc
+--disconnect master_1
+--echo for child2
+if ($USE_CHILD_GROUP2)
+{
+  --echo child2_1
+  --connection child2_1
+  --source ../include/deinit_child2_1.inc
+  --disconnect child2_1
+  --echo child2_2
+  --connection child2_2
+  --source ../include/deinit_child2_2.inc
+  --disconnect child2_2
+  --echo child2_3
+  --connection child2_3
+  --source ../include/deinit_child2_3.inc
+  --disconnect child2_3
+}
+--echo for child3
+if ($USE_CHILD_GROUP3)
+{
+  --echo child3_1
+  --connection child3_1
+  --source ../include/deinit_child3_1.inc
+  --disconnect child3_1
+  --echo child3_2
+  --connection child3_2
+  --source ../include/deinit_child3_2.inc
+  --disconnect child3_2
+  --echo child3_3
+  --connection child3_3
+  --source ../include/deinit_child3_3.inc
+  --disconnect child3_3
+}
diff --git a/storage/spider/mysql-test/spider/bg/t/test_init.inc b/storage/spider/mysql-test/spider/bg/t/test_init.inc
new file mode 100644
index 00000000..f2cd6c02
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/test_init.inc
@@ -0,0 +1,74 @@
+# get connection and exist engine test
+--echo for master_1
+--source connect_master_1.inc
+--connection master_1
+CALL mtr.add_suppression("unknown variable");
+SET SESSION sql_log_bin= 0;
+--let $MASTER_1_SERVER_ID=`SELECT @@global.server_id`
+--let $TEST_ENGINE_TYPE= $MASTER_1_ENGINE_TYPE
+--source have_partition.inc
+--source have_trigger.inc
+--source ../include/init_master_1.inc
+--source have_engine.inc
+--echo for child2
+if ($USE_CHILD_GROUP2)
+{
+  --echo child2_1
+  --source connect_child2_1.inc
+  --connection child2_1
+  CALL mtr.add_suppression("unknown variable *");
+  SET SESSION sql_log_bin= 0;
+  --let $CHILD2_1_SERVER_ID=`SELECT @@global.server_id`
+  --let $TEST_ENGINE_TYPE= $CHILD2_1_ENGINE_TYPE
+  --source ../include/init_child2_1.inc
+  --source have_engine.inc
+  --echo child2_2
+  --source connect_child2_2.inc
+  --connection child2_2
+  CALL mtr.add_suppression("unknown variable *");
+  SET SESSION sql_log_bin= 0;
+  --let $CHILD2_2_SERVER_ID=`SELECT @@global.server_id`
+  --let $TEST_ENGINE_TYPE= $CHILD2_2_ENGINE_TYPE
+  --source ../include/init_child2_2.inc
+  --source have_engine.inc
+  --echo child2_3
+  --source connect_child2_3.inc
+  --connection child2_3
+  CALL mtr.add_suppression("unknown variable *");
+  SET SESSION sql_log_bin= 0;
+  --let $CHILD2_3_SERVER_ID=`SELECT @@global.server_id`
+  --let $TEST_ENGINE_TYPE= $CHILD2_3_ENGINE_TYPE
+  --source ../include/init_child2_3.inc
+  --source have_engine.inc
+}
+--echo for child3
+if ($USE_CHILD_GROUP3)
+{
+  --echo child3_1
+  --source connect_child3_1.inc
+  --connection child3_1
+  CALL mtr.add_suppression("unknown variable *");
+  SET SESSION sql_log_bin= 0;
+  --let $CHILD3_1_SERVER_ID=`SELECT @@global.server_id`
+  --let $TEST_ENGINE_TYPE= $CHILD3_1_ENGINE_TYPE
+  --source ../include/init_child3_1.inc
+  --source have_engine.inc
+  --echo child3_2
+  --source connect_child3_2.inc
+  --connection child3_2
+  CALL mtr.add_suppression("unknown variable *");
+  SET SESSION sql_log_bin= 0;
+  --let $CHILD3_2_SERVER_ID=`SELECT @@global.server_id`
+  --let $TEST_ENGINE_TYPE= $CHILD3_2_ENGINE_TYPE
+  --source ../include/init_child3_2.inc
+  --source have_engine.inc
+  --echo child3_3
+  --source connect_child3_3.inc
+  --connection child3_3
+  CALL mtr.add_suppression("unknown variable *");
+  SET SESSION sql_log_bin= 0;
+  --let $CHILD3_3_SERVER_ID=`SELECT @@global.server_id`
+  --let $TEST_ENGINE_TYPE= $CHILD3_3_ENGINE_TYPE
+  --source ../include/init_child3_3.inc
+  --source have_engine.inc
+}
diff --git a/storage/spider/mysql-test/spider/bg/t/vp_fixes.test b/storage/spider/mysql-test/spider/bg/t/vp_fixes.test
new file mode 100644
index 00000000..90380227
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bg/t/vp_fixes.test
@@ -0,0 +1,335 @@
+# This test tests for VP's bug fixes
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table and insert
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tb_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+eval CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+--enable_query_log
+INSERT INTO tb_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+
+--echo
+--echo 0.9
+--echo create different primary key table
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_result_log
+  }
+  --disable_query_log
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    echo CHILD2_1_DROP_TABLES5;
+    echo CHILD2_1_CREATE_TABLES5;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES5;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES5;
+  --enable_query_log
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_query_log
+echo CREATE TABLE ta_l_int (
+  a INT DEFAULT 10,
+  b INT AUTO_INCREMENT,
+  c INT DEFAULT 11,
+  PRIMARY KEY(b)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1;
+eval CREATE TABLE ta_l_int (
+  a INT DEFAULT 10,
+  b INT AUTO_INCREMENT,
+  c INT DEFAULT 11,
+  PRIMARY KEY(b)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+--enable_query_log
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--let $MASTER_1_IS_VP= `SELECT IF('$MASTER_1_ENGINE_TYPE' = 'VP', 1, 0)`
+if ($MASTER_1_IS_VP)
+{
+  --error 14514
+  INSERT INTO ta_l_int (a, b, c) VALUES (2, NULL, 3);
+}
+if (!$MASTER_1_IS_VP)
+{
+  INSERT INTO ta_l_int (a, b, c) VALUES (2, NULL, 3);
+  --disable_query_log
+  --disable_result_log
+  TRUNCATE TABLE ta_l_int;
+  --enable_query_log
+  --enable_result_log
+}
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES5;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo create un-correspond primary key table
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l_int;
+--enable_warnings
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_result_log
+  }
+  --disable_query_log
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    echo CHILD2_1_DROP_TABLES5;
+    echo CHILD2_1_CREATE_TABLES5;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES5;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES5;
+  --enable_query_log
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_query_log
+echo CREATE TABLE ta_l_int (
+  a INT DEFAULT 10,
+  b INT DEFAULT 12,
+  c INT DEFAULT 11,
+  PRIMARY KEY(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1;
+eval CREATE TABLE ta_l_int (
+  a INT DEFAULT 10,
+  b INT DEFAULT 12,
+  c INT DEFAULT 11,
+  PRIMARY KEY(c)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+--enable_query_log
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+if ($MASTER_1_IS_VP)
+{
+  --error 14514
+  INSERT INTO ta_l_int (a, b, c) VALUES (2, NULL, 3);
+}
+if (!$MASTER_1_IS_VP)
+{
+  INSERT INTO ta_l_int (a, b, c) VALUES (2, NULL, 3);
+  --disable_query_log
+  --disable_result_log
+  TRUNCATE TABLE ta_l_int;
+  --enable_query_log
+  --enable_result_log
+}
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES5;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/disabled.def b/storage/spider/mysql-test/spider/bugfix/disabled.def
new file mode 100644
index 00000000..e19ea07b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/disabled.def
@@ -0,0 +1 @@
+wait_timeout : MDEV-26045
diff --git a/storage/spider/mysql-test/spider/bugfix/include/checksum_table_with_quick_mode_3_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/checksum_table_with_quick_mode_3_deinit.inc
new file mode 100644
index 00000000..47f6df94
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/checksum_table_with_quick_mode_3_deinit.inc
@@ -0,0 +1,14 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--connection master_1
+set session spider_quick_mode= @old_spider_quick_mode;
+set session spider_quick_page_size= @old_spider_quick_page_size;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/checksum_table_with_quick_mode_3_init.inc b/storage/spider/mysql-test/spider/bugfix/include/checksum_table_with_quick_mode_3_init.inc
new file mode 100644
index 00000000..12341038
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/checksum_table_with_quick_mode_3_init.inc
@@ -0,0 +1,29 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a", srv "s_2_1"';
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT pkey FROM tbl_a ORDER BY pkey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%checksum %';
+--connection master_1
+set @old_spider_quick_mode= @@spider_quick_mode;
+set session spider_quick_mode= 3;
+set @old_spider_quick_page_size= @@spider_quick_page_size;
+set session spider_quick_page_size= 3;
diff --git a/storage/spider/mysql-test/spider/bugfix/include/cp932_column_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/cp932_column_deinit.inc
new file mode 100644
index 00000000..930cde88
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/cp932_column_deinit.inc
@@ -0,0 +1,13 @@
+--connection master_1
+set session spider_direct_dup_insert= @old_spider_direct_dup_insert;
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/cp932_column_init.inc b/storage/spider/mysql-test/spider/bugfix/include/cp932_column_init.inc
new file mode 100644
index 00000000..ba412b56
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/cp932_column_init.inc
@@ -0,0 +1,29 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a", srv "s_2_1"';
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    txt_utf8 char(8) NOT NULL,
+    txt_cp932 char(8) NOT NULL COLLATE cp932_japanese_ci,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_1_ENGINE DEFAULT CHARACTER SET utf8;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT pkey, txt_utf8, txt_cp932 FROM tbl_a ORDER BY pkey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %' OR argument LIKE '%update %';
+--connection master_1
+set @old_spider_direct_dup_insert= @@spider_direct_dup_insert;
+set session spider_direct_dup_insert= 1;
diff --git a/storage/spider/mysql-test/spider/bugfix/include/delete_with_float_column_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/delete_with_float_column_deinit.inc
new file mode 100644
index 00000000..4ea789fe
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/delete_with_float_column_deinit.inc
@@ -0,0 +1,13 @@
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--connection master_1
+set session binlog_format= @old_binlog_format;
+--connection slave1_1
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../include/deinit_spider.inc
+--source ../t/slave_test_deinit.inc
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/delete_with_float_column_init.inc b/storage/spider/mysql-test/spider/bugfix/include/delete_with_float_column_init.inc
new file mode 100644
index 00000000..f2f8635f
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/delete_with_float_column_init.inc
@@ -0,0 +1,24 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--source ../t/slave_test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT pkey, f FROM tbl_a ORDER BY pkey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%delete %';
+--connection slave1_1
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../include/init_spider.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--connection master_1
+set @old_binlog_format= @@binlog_format;
+set session binlog_format= 'ROW';
diff --git a/storage/spider/mysql-test/spider/bugfix/include/delete_with_float_column_mariadb_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/delete_with_float_column_mariadb_deinit.inc
new file mode 100644
index 00000000..4fd217a5
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/delete_with_float_column_mariadb_deinit.inc
@@ -0,0 +1,4 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--source delete_with_float_column_deinit.inc
diff --git a/storage/spider/mysql-test/spider/bugfix/include/delete_with_float_column_mariadb_init.inc b/storage/spider/mysql-test/spider/bugfix/include/delete_with_float_column_mariadb_init.inc
new file mode 100644
index 00000000..9d396149
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/delete_with_float_column_mariadb_init.inc
@@ -0,0 +1,14 @@
+--source delete_with_float_column_init.inc
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a", srv "s_2_1", wrapper "mariadb"';
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    f float DEFAULT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
diff --git a/storage/spider/mysql-test/spider/bugfix/include/delete_with_float_column_mysql_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/delete_with_float_column_mysql_deinit.inc
new file mode 100644
index 00000000..4fd217a5
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/delete_with_float_column_mysql_deinit.inc
@@ -0,0 +1,4 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--source delete_with_float_column_deinit.inc
diff --git a/storage/spider/mysql-test/spider/bugfix/include/delete_with_float_column_mysql_init.inc b/storage/spider/mysql-test/spider/bugfix/include/delete_with_float_column_mysql_init.inc
new file mode 100644
index 00000000..d98f3c12
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/delete_with_float_column_mysql_init.inc
@@ -0,0 +1,16 @@
+--source delete_with_float_column_init.inc
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a", srv "s_2_1", wrapper "mysql"';
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a $STR_SEMICOLON
+  DROP FUNCTION to_float;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    f float DEFAULT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET $STR_SEMICOLON
+  CREATE FUNCTION to_float(a decimal(20,6)) RETURNS float RETURN cast(a as double);
diff --git a/storage/spider/mysql-test/spider/bugfix/include/direct_sql_with_comma_pwd_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/direct_sql_with_comma_pwd_deinit.inc
new file mode 100644
index 00000000..27682e43
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/direct_sql_with_comma_pwd_deinit.inc
@@ -0,0 +1,9 @@
+--connection child2_1
+DROP USER tu@'%';
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/direct_sql_with_comma_pwd_init.inc b/storage/spider/mysql-test/spider/bugfix/include/direct_sql_with_comma_pwd_init.inc
new file mode 100644
index 00000000..c87af2d0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/direct_sql_with_comma_pwd_init.inc
@@ -0,0 +1,11 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+let $DIRECT_SQL_COMMAND=
+  SELECT spider_direct_sql('SELECT 22', 'tmp_a', 'srv "s_2_1", database "test", password "pass,1234", user "tu"');
+--connection child2_1
+GRANT ALL ON *.* TO tu@'%' IDENTIFIED BY 'pass,1234';
diff --git a/storage/spider/mysql-test/spider/bugfix/include/direct_sql_with_tmp_table_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/direct_sql_with_tmp_table_deinit.inc
new file mode 100644
index 00000000..ecb5622a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/direct_sql_with_tmp_table_deinit.inc
@@ -0,0 +1,7 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/direct_sql_with_tmp_table_init.inc b/storage/spider/mysql-test/spider/bugfix/include/direct_sql_with_tmp_table_init.inc
new file mode 100644
index 00000000..7b58bd3e
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/direct_sql_with_tmp_table_init.inc
@@ -0,0 +1,9 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+let $DIRECT_SQL_COMMAND=
+  SELECT spider_direct_sql('SELECT 22', 'tmp_a', 'srv "s_2_1", database "test"');
diff --git a/storage/spider/mysql-test/spider/bugfix/include/group_by_order_by_limit_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/group_by_order_by_limit_deinit.inc
new file mode 100644
index 00000000..9d255152
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/group_by_order_by_limit_deinit.inc
@@ -0,0 +1,14 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--let $CHILD2_2_DROP_TABLES= $CHILD2_2_DROP_TABLES_BACKUP
+--let $CHILD2_2_CREATE_TABLES= $CHILD2_2_CREATE_TABLES_BACKUP
+--let $CHILD2_2_SELECT_TABLES= $CHILD2_2_SELECT_TABLES_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/group_by_order_by_limit_init.inc b/storage/spider/mysql-test/spider/bugfix/include/group_by_order_by_limit_init.inc
new file mode 100644
index 00000000..ac60580f
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/group_by_order_by_limit_init.inc
@@ -0,0 +1,54 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+if (!$HAVE_PARTITION)
+{
+  --source group_by_order_by_limit_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a"'
+  PARTITION BY KEY(pkey) (
+    PARTITION pt1 COMMENT='srv "s_2_1"',
+    PARTITION pt2 COMMENT='srv "s_2_2"'
+  );
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    skey int NOT NULL,
+    PRIMARY KEY (pkey),
+    KEY idx1 (skey)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT pkey, skey FROM tbl_a ORDER BY pkey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $CHILD2_2_DROP_TABLES_BACKUP= $CHILD2_2_DROP_TABLES
+let $CHILD2_2_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_2_CREATE_TABLES_BACKUP= $CHILD2_2_CREATE_TABLES
+let $CHILD2_2_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    skey int NOT NULL,
+    PRIMARY KEY (pkey),
+    KEY idx1 (skey)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+--let $CHILD2_2_SELECT_TABLES_BACKUP= $CHILD2_2_SELECT_TABLES
+let $CHILD2_2_SELECT_TABLES=
+  SELECT pkey, skey FROM tbl_a ORDER BY pkey;
+let $CHILD2_2_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
diff --git a/storage/spider/mysql-test/spider/bugfix/include/insert_select_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/insert_select_deinit.inc
new file mode 100644
index 00000000..b8b2f200
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/insert_select_deinit.inc
@@ -0,0 +1,16 @@
+--connection master_1
+set session spider_direct_dup_insert= @old_spider_direct_dup_insert;
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $MASTER_1_COMMENT_2_1_2= $MASTER_1_COMMENT_2_1_2_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_DROP_TABLES2= $CHILD2_1_DROP_TABLES2_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES2= $CHILD2_1_CREATE_TABLES2_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/insert_select_init.inc b/storage/spider/mysql-test/spider/bugfix/include/insert_select_init.inc
new file mode 100644
index 00000000..62a8821a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/insert_select_init.inc
@@ -0,0 +1,43 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a", srv "s_2_1"';
+--let $MASTER_1_COMMENT_2_1_2_BACKUP= $MASTER_1_COMMENT_2_1_2
+let $MASTER_1_COMMENT_2_1_2=
+  COMMENT='table "tbl_b", srv "s_2_1"';
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_DROP_TABLES2_BACKUP= $CHILD2_1_DROP_TABLES2
+let $CHILD2_1_DROP_TABLES2=
+  DROP TABLE IF EXISTS tbl_b;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    skey int NOT NULL,
+    dt date NOT NULL,
+    tm time NOT NULL,
+    KEY idx1 (skey,dt,tm)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_CREATE_TABLES2_BACKUP= $CHILD2_1_CREATE_TABLES2
+let $CHILD2_1_CREATE_TABLES2=
+  CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    dt datetime NOT NULL,
+    PRIMARY KEY (pkey),
+    KEY idx1 (dt)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT pkey, dt FROM tbl_b ORDER BY pkey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--connection master_1
+set @old_spider_direct_dup_insert= @@spider_direct_dup_insert;
+set session spider_direct_dup_insert= 1;
diff --git a/storage/spider/mysql-test/spider/bugfix/include/mdev_19866_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/mdev_19866_deinit.inc
new file mode 100644
index 00000000..9d255152
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/mdev_19866_deinit.inc
@@ -0,0 +1,14 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--let $CHILD2_2_DROP_TABLES= $CHILD2_2_DROP_TABLES_BACKUP
+--let $CHILD2_2_CREATE_TABLES= $CHILD2_2_CREATE_TABLES_BACKUP
+--let $CHILD2_2_SELECT_TABLES= $CHILD2_2_SELECT_TABLES_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/mdev_19866_init.inc b/storage/spider/mysql-test/spider/bugfix/include/mdev_19866_init.inc
new file mode 100644
index 00000000..dceae822
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/mdev_19866_init.inc
@@ -0,0 +1,52 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+if (!$HAVE_PARTITION)
+{
+  --source group_by_order_by_limit_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a"'
+  PARTITION BY KEY(pkey) (
+    PARTITION pt1 COMMENT='srv "s_2_1"',
+    PARTITION pt2 COMMENT='srv "s_2_2"'
+  );
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    val char(1) NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT pkey, val FROM tbl_a ORDER BY pkey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $CHILD2_2_DROP_TABLES_BACKUP= $CHILD2_2_DROP_TABLES
+let $CHILD2_2_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_2_CREATE_TABLES_BACKUP= $CHILD2_2_CREATE_TABLES
+let $CHILD2_2_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    val char(1) NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+--let $CHILD2_2_SELECT_TABLES_BACKUP= $CHILD2_2_SELECT_TABLES
+let $CHILD2_2_SELECT_TABLES=
+  SELECT pkey, val FROM tbl_a ORDER BY pkey;
+let $CHILD2_2_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
diff --git a/storage/spider/mysql-test/spider/bugfix/include/mdev_20100_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/mdev_20100_deinit.inc
new file mode 100644
index 00000000..1880a1c7
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/mdev_20100_deinit.inc
@@ -0,0 +1,11 @@
+--let $MASTER_1_COMMENT_P_2_1= $MASTER_1_COMMENT_P_2_1_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/mdev_20100_init.inc b/storage/spider/mysql-test/spider/bugfix/include/mdev_20100_init.inc
new file mode 100644
index 00000000..ed6e2796
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/mdev_20100_init.inc
@@ -0,0 +1,46 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_P_2_1_BACKUP= $MASTER_1_COMMENT_P_2_1
+let $MASTER_1_COMMENT_P_2_1=
+  PARTITION BY RANGE(a) (
+    PARTITION pt1 VALUES LESS THAN (5) COMMENT='srv "s_2_1", table "ta_r2"',
+    PARTITION pt2 VALUES LESS THAN (10) COMMENT='srv "s_2_1", table "ta_r3"',
+    PARTITION pt3 VALUES LESS THAN MAXVALUE COMMENT='srv "s_2_1", table "ta_r4"'
+  );
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS ta_r2 $STR_SEMICOLON
+  DROP TABLE IF EXISTS ta_r3 $STR_SEMICOLON
+  DROP TABLE IF EXISTS ta_r4;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE ta_r2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET $STR_SEMICOLON
+  CREATE TABLE ta_r3 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET $STR_SEMICOLON
+  CREATE TABLE ta_r4 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT a, b, c FROM ta_r2 ORDER BY a $STR_SEMICOLON
+  SELECT a, b, c FROM ta_r3 ORDER BY a $STR_SEMICOLON
+  SELECT a, b, c FROM ta_r4 ORDER BY a;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
diff --git a/storage/spider/mysql-test/spider/bugfix/include/mdev_20502_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/mdev_20502_deinit.inc
new file mode 100644
index 00000000..76b7582a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/mdev_20502_deinit.inc
@@ -0,0 +1,11 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/mdev_20502_init.inc b/storage/spider/mysql-test/spider/bugfix/include/mdev_20502_init.inc
new file mode 100644
index 00000000..fd8cc0d8
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/mdev_20502_init.inc
@@ -0,0 +1,25 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a", srv "s_2_1"';
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    id int(10) unsigned NOT NULL AUTO_INCREMENT,  
+    val int(10) unsigned DEFAULT NULL,
+    PRIMARY KEY (id)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT id, val FROM tbl_a ORDER BY id;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
diff --git a/storage/spider/mysql-test/spider/bugfix/include/mdev_21884_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/mdev_21884_deinit.inc
new file mode 100644
index 00000000..74efe3a2
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/mdev_21884_deinit.inc
@@ -0,0 +1,14 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--connection master_1
+set session spider_bgs_mode= @old_spider_bgs_mode;
+set session spider_quick_mode= @old_spider_quick_mode;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/mdev_21884_init.inc b/storage/spider/mysql-test/spider/bugfix/include/mdev_21884_init.inc
new file mode 100644
index 00000000..25455ffc
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/mdev_21884_init.inc
@@ -0,0 +1,57 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a", srv "s_2_1"';
+--let $MASTER_1_COMMENT_P_2_1_BACKUP= $MASTER_1_COMMENT_P_2_1
+let $MASTER_1_COMMENT_P_2_1=
+  COMMENT='table "ta_r3"'
+  PARTITION BY RANGE(a) (
+    PARTITION pt1 VALUES LESS THAN (10) COMMENT='srv "s_2_1", table "ta_r2",
+    priority "1000"',
+    PARTITION pt2 VALUES LESS THAN MAXVALUE COMMENT='srv "s_2_1", priority "1000001"'
+  );
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS ta_r2 $STR_SEMICOLON
+  DROP TABLE IF EXISTS ta_r3;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    txt char(8) NOT NULL,
+    PRIMARY KEY (pkey, txt)
+  ) $CHILD2_1_ENGINE DEFAULT CHARACTER SET utf8;
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE ta_r2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a,b)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET $STR_SEMICOLON
+  CREATE TABLE ta_r3 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a,b)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT pkey, txt FROM tbl_a ORDER BY pkey;
+let $CHILD2_1_SELECT_TABLES=
+  SELECT a, b, c FROM ta_r2 ORDER BY a $STR_SEMICOLON
+  SELECT a, b, c FROM ta_r3 ORDER BY a;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--connection master_1
+set @old_spider_bgs_mode= @@spider_bgs_mode;
+set session spider_bgs_mode= 2;
+set @old_spider_quick_mode= @@spider_quick_mode;
+set session spider_quick_mode= 3;
diff --git a/storage/spider/mysql-test/spider/bugfix/include/mdev_22246_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/mdev_22246_deinit.inc
new file mode 100644
index 00000000..9d255152
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/mdev_22246_deinit.inc
@@ -0,0 +1,14 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--let $CHILD2_2_DROP_TABLES= $CHILD2_2_DROP_TABLES_BACKUP
+--let $CHILD2_2_CREATE_TABLES= $CHILD2_2_CREATE_TABLES_BACKUP
+--let $CHILD2_2_SELECT_TABLES= $CHILD2_2_SELECT_TABLES_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/mdev_22246_init.inc b/storage/spider/mysql-test/spider/bugfix/include/mdev_22246_init.inc
new file mode 100644
index 00000000..48226ba2
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/mdev_22246_init.inc
@@ -0,0 +1,48 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+if (!$HAVE_PARTITION)
+{
+  --source group_by_order_by_limit_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a"'
+  PARTITION BY HASH(id) (
+    PARTITION pt1 COMMENT='srv "s_2_1"',
+    PARTITION pt2 COMMENT='srv "s_2_2"'
+  );
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    id bigint NOT NULL,
+    node text,
+    PRIMARY KEY (id)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT * FROM tbl_a ORDER BY id;
+--let $CHILD2_2_DROP_TABLES_BACKUP= $CHILD2_2_DROP_TABLES
+let $CHILD2_2_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_2_CREATE_TABLES_BACKUP= $CHILD2_2_CREATE_TABLES
+let $CHILD2_2_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    id bigint NOT NULL,
+    node text,
+    PRIMARY KEY (id)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+--let $CHILD2_2_SELECT_TABLES_BACKUP= $CHILD2_2_SELECT_TABLES
+let $CHILD2_2_SELECT_TABLES=
+  SELECT * FROM tbl_a ORDER BY id;
diff --git a/storage/spider/mysql-test/spider/bugfix/include/mdev_22265_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/mdev_22265_deinit.inc
new file mode 100644
index 00000000..ecb5622a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/mdev_22265_deinit.inc
@@ -0,0 +1,7 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/mdev_22265_init.inc b/storage/spider/mysql-test/spider/bugfix/include/mdev_22265_init.inc
new file mode 100644
index 00000000..6cf6b0c1
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/mdev_22265_init.inc
@@ -0,0 +1,7 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/mdev_24020_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/mdev_24020_deinit.inc
new file mode 100644
index 00000000..1880a1c7
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/mdev_24020_deinit.inc
@@ -0,0 +1,11 @@
+--let $MASTER_1_COMMENT_P_2_1= $MASTER_1_COMMENT_P_2_1_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/mdev_24020_init.inc b/storage/spider/mysql-test/spider/bugfix/include/mdev_24020_init.inc
new file mode 100644
index 00000000..63fd70a4
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/mdev_24020_init.inc
@@ -0,0 +1,43 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_P_2_1_BACKUP= $MASTER_1_COMMENT_P_2_1
+let $MASTER_1_COMMENT_P_2_1=
+  PARTITION BY LIST(a % 3) (
+    PARTITION pt1 VALUES IN (0) COMMENT='srv "s_2_1", table "ta_r2"',
+    PARTITION pt2 VALUES IN (1) COMMENT='srv "s_2_1", table "ta_r3"',
+    PARTITION pt3 VALUES IN (2) COMMENT='srv "s_2_1", table "ta_r4"'
+  );
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS ta_r2 $STR_SEMICOLON
+  DROP TABLE IF EXISTS ta_r3 $STR_SEMICOLON
+  DROP TABLE IF EXISTS ta_r4;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE ta_r2 (
+    a INT,
+    b VARCHAR(30),
+    PRIMARY KEY(a)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET $STR_SEMICOLON
+  CREATE TABLE ta_r3 (
+    a INT,
+    b VARCHAR(30),
+    PRIMARY KEY(a)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET $STR_SEMICOLON
+  CREATE TABLE ta_r4 (
+    a INT,
+    b VARCHAR(30),
+    PRIMARY KEY(a)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT a, b FROM ta_r2 ORDER BY a $STR_SEMICOLON
+  SELECT a, b FROM ta_r3 ORDER BY a $STR_SEMICOLON
+  SELECT a, b FROM ta_r4 ORDER BY a;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
diff --git a/storage/spider/mysql-test/spider/bugfix/include/mdev_24517_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/mdev_24517_deinit.inc
new file mode 100644
index 00000000..1880a1c7
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/mdev_24517_deinit.inc
@@ -0,0 +1,11 @@
+--let $MASTER_1_COMMENT_P_2_1= $MASTER_1_COMMENT_P_2_1_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/mdev_24517_init.inc b/storage/spider/mysql-test/spider/bugfix/include/mdev_24517_init.inc
new file mode 100644
index 00000000..b5b77a53
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/mdev_24517_init.inc
@@ -0,0 +1,43 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_P_2_1_BACKUP= $MASTER_1_COMMENT_P_2_1
+let $MASTER_1_COMMENT_P_2_1=
+  PARTITION BY RANGE(i) (
+    PARTITION pt1 VALUES LESS THAN (5) COMMENT='srv "s_2_1", table "ta_r2"',
+    PARTITION pt2 VALUES LESS THAN (10) COMMENT='srv "s_2_1", table "ta_r3"',
+    PARTITION pt3 VALUES LESS THAN MAXVALUE COMMENT='srv "s_2_1", table "ta_r4"'
+  );
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS ta_r2 $STR_SEMICOLON
+  DROP TABLE IF EXISTS ta_r3 $STR_SEMICOLON
+  DROP TABLE IF EXISTS ta_r4;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE ta_r2 (
+    i INT,
+    j JSON,
+    PRIMARY KEY(i)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET $STR_SEMICOLON
+  CREATE TABLE ta_r3 (
+    i INT,
+    j JSON,
+    PRIMARY KEY(i)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET $STR_SEMICOLON
+  CREATE TABLE ta_r4 (
+    i INT,
+    j JSON,
+    PRIMARY KEY(i)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT i, j FROM ta_r2 ORDER BY i $STR_SEMICOLON
+  SELECT i, j FROM ta_r3 ORDER BY i $STR_SEMICOLON
+  SELECT i, j FROM ta_r4 ORDER BY i;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
diff --git a/storage/spider/mysql-test/spider/bugfix/include/quick_mode_0_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/quick_mode_0_deinit.inc
new file mode 100644
index 00000000..42124a79
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/quick_mode_0_deinit.inc
@@ -0,0 +1,19 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $MASTER_1_COMMENT_2_2= $MASTER_1_COMMENT_2_2_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--let $CHILD2_2_DROP_TABLES= $CHILD2_2_DROP_TABLES_BACKUP
+--let $CHILD2_2_CREATE_TABLES= $CHILD2_2_CREATE_TABLES_BACKUP
+--let $CHILD2_2_SELECT_TABLES= $CHILD2_2_SELECT_TABLES_BACKUP
+--connection master_1
+set session spider_quick_mode= @old_spider_quick_mode;
+set session spider_quick_page_size= @old_spider_quick_page_size;
+set session spider_quick_page_byte= @old_spider_quick_page_byte;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/quick_mode_0_init.inc b/storage/spider/mysql-test/spider/bugfix/include/quick_mode_0_init.inc
new file mode 100644
index 00000000..26565172
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/quick_mode_0_init.inc
@@ -0,0 +1,51 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a", srv "s_2_1"';
+--let $MASTER_1_COMMENT_2_2_BACKUP= $MASTER_1_COMMENT_2_2
+let $MASTER_1_COMMENT_2_2=
+  COMMENT='table "tbl_b", srv "s_2_2"';
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT pkey FROM tbl_a ORDER BY pkey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $CHILD2_2_DROP_TABLES_BACKUP= $CHILD2_2_DROP_TABLES
+let $CHILD2_2_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_b;
+--let $CHILD2_2_CREATE_TABLES_BACKUP= $CHILD2_2_CREATE_TABLES
+let $CHILD2_2_CREATE_TABLES=
+  CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+--let $CHILD2_2_SELECT_TABLES_BACKUP= $CHILD2_2_SELECT_TABLES
+let $CHILD2_2_SELECT_TABLES=
+  SELECT pkey FROM tbl_b ORDER BY pkey;
+let $CHILD2_2_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--connection master_1
+set @old_spider_quick_mode= @@spider_quick_mode;
+set session spider_quick_mode= 0;
+set @old_spider_quick_page_size= @@spider_quick_page_size;
+set session spider_quick_page_size= 3;
+set @old_spider_quick_page_byte= @@spider_quick_page_byte;
+let $MASTER_1_SET_QUICK_PAGE_BYTE_6=
+  set session spider_quick_page_byte= 6;
+let $MASTER_1_SET_QUICK_PAGE_BYTE_0=
+  set session spider_quick_page_byte= 0;
diff --git a/storage/spider/mysql-test/spider/bugfix/include/quick_mode_1_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/quick_mode_1_deinit.inc
new file mode 100644
index 00000000..42124a79
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/quick_mode_1_deinit.inc
@@ -0,0 +1,19 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $MASTER_1_COMMENT_2_2= $MASTER_1_COMMENT_2_2_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--let $CHILD2_2_DROP_TABLES= $CHILD2_2_DROP_TABLES_BACKUP
+--let $CHILD2_2_CREATE_TABLES= $CHILD2_2_CREATE_TABLES_BACKUP
+--let $CHILD2_2_SELECT_TABLES= $CHILD2_2_SELECT_TABLES_BACKUP
+--connection master_1
+set session spider_quick_mode= @old_spider_quick_mode;
+set session spider_quick_page_size= @old_spider_quick_page_size;
+set session spider_quick_page_byte= @old_spider_quick_page_byte;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/quick_mode_1_init.inc b/storage/spider/mysql-test/spider/bugfix/include/quick_mode_1_init.inc
new file mode 100644
index 00000000..9a8de407
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/quick_mode_1_init.inc
@@ -0,0 +1,51 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a", srv "s_2_1"';
+--let $MASTER_1_COMMENT_2_2_BACKUP= $MASTER_1_COMMENT_2_2
+let $MASTER_1_COMMENT_2_2=
+  COMMENT='table "tbl_b", srv "s_2_2"';
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT pkey FROM tbl_a ORDER BY pkey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $CHILD2_2_DROP_TABLES_BACKUP= $CHILD2_2_DROP_TABLES
+let $CHILD2_2_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_b;
+--let $CHILD2_2_CREATE_TABLES_BACKUP= $CHILD2_2_CREATE_TABLES
+let $CHILD2_2_CREATE_TABLES=
+  CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+--let $CHILD2_2_SELECT_TABLES_BACKUP= $CHILD2_2_SELECT_TABLES
+let $CHILD2_2_SELECT_TABLES=
+  SELECT pkey FROM tbl_b ORDER BY pkey;
+let $CHILD2_2_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--connection master_1
+set @old_spider_quick_mode= @@spider_quick_mode;
+set session spider_quick_mode= 1;
+set @old_spider_quick_page_size= @@spider_quick_page_size;
+set session spider_quick_page_size= 3;
+set @old_spider_quick_page_byte= @@spider_quick_page_byte;
+let $MASTER_1_SET_QUICK_PAGE_BYTE_6=
+  set session spider_quick_page_byte= 6;
+let $MASTER_1_SET_QUICK_PAGE_BYTE_0=
+  set session spider_quick_page_byte= 0;
diff --git a/storage/spider/mysql-test/spider/bugfix/include/quick_mode_2_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/quick_mode_2_deinit.inc
new file mode 100644
index 00000000..42124a79
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/quick_mode_2_deinit.inc
@@ -0,0 +1,19 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $MASTER_1_COMMENT_2_2= $MASTER_1_COMMENT_2_2_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--let $CHILD2_2_DROP_TABLES= $CHILD2_2_DROP_TABLES_BACKUP
+--let $CHILD2_2_CREATE_TABLES= $CHILD2_2_CREATE_TABLES_BACKUP
+--let $CHILD2_2_SELECT_TABLES= $CHILD2_2_SELECT_TABLES_BACKUP
+--connection master_1
+set session spider_quick_mode= @old_spider_quick_mode;
+set session spider_quick_page_size= @old_spider_quick_page_size;
+set session spider_quick_page_byte= @old_spider_quick_page_byte;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/quick_mode_2_init.inc b/storage/spider/mysql-test/spider/bugfix/include/quick_mode_2_init.inc
new file mode 100644
index 00000000..dbe3f703
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/quick_mode_2_init.inc
@@ -0,0 +1,51 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a", srv "s_2_1"';
+--let $MASTER_1_COMMENT_2_2_BACKUP= $MASTER_1_COMMENT_2_2
+let $MASTER_1_COMMENT_2_2=
+  COMMENT='table "tbl_b", srv "s_2_2"';
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT pkey FROM tbl_a ORDER BY pkey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $CHILD2_2_DROP_TABLES_BACKUP= $CHILD2_2_DROP_TABLES
+let $CHILD2_2_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_b;
+--let $CHILD2_2_CREATE_TABLES_BACKUP= $CHILD2_2_CREATE_TABLES
+let $CHILD2_2_CREATE_TABLES=
+  CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+--let $CHILD2_2_SELECT_TABLES_BACKUP= $CHILD2_2_SELECT_TABLES
+let $CHILD2_2_SELECT_TABLES=
+  SELECT pkey FROM tbl_b ORDER BY pkey;
+let $CHILD2_2_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--connection master_1
+set @old_spider_quick_mode= @@spider_quick_mode;
+set session spider_quick_mode= 2;
+set @old_spider_quick_page_size= @@spider_quick_page_size;
+set session spider_quick_page_size= 3;
+set @old_spider_quick_page_byte= @@spider_quick_page_byte;
+let $MASTER_1_SET_QUICK_PAGE_BYTE_6=
+  set session spider_quick_page_byte= 6;
+let $MASTER_1_SET_QUICK_PAGE_BYTE_0=
+  set session spider_quick_page_byte= 0;
diff --git a/storage/spider/mysql-test/spider/bugfix/include/quick_mode_3_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/quick_mode_3_deinit.inc
new file mode 100644
index 00000000..42124a79
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/quick_mode_3_deinit.inc
@@ -0,0 +1,19 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $MASTER_1_COMMENT_2_2= $MASTER_1_COMMENT_2_2_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--let $CHILD2_2_DROP_TABLES= $CHILD2_2_DROP_TABLES_BACKUP
+--let $CHILD2_2_CREATE_TABLES= $CHILD2_2_CREATE_TABLES_BACKUP
+--let $CHILD2_2_SELECT_TABLES= $CHILD2_2_SELECT_TABLES_BACKUP
+--connection master_1
+set session spider_quick_mode= @old_spider_quick_mode;
+set session spider_quick_page_size= @old_spider_quick_page_size;
+set session spider_quick_page_byte= @old_spider_quick_page_byte;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/quick_mode_3_init.inc b/storage/spider/mysql-test/spider/bugfix/include/quick_mode_3_init.inc
new file mode 100644
index 00000000..81239206
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/quick_mode_3_init.inc
@@ -0,0 +1,51 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a", srv "s_2_1"';
+--let $MASTER_1_COMMENT_2_2_BACKUP= $MASTER_1_COMMENT_2_2
+let $MASTER_1_COMMENT_2_2=
+  COMMENT='table "tbl_b", srv "s_2_2"';
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT pkey FROM tbl_a ORDER BY pkey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $CHILD2_2_DROP_TABLES_BACKUP= $CHILD2_2_DROP_TABLES
+let $CHILD2_2_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_b;
+--let $CHILD2_2_CREATE_TABLES_BACKUP= $CHILD2_2_CREATE_TABLES
+let $CHILD2_2_CREATE_TABLES=
+  CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+--let $CHILD2_2_SELECT_TABLES_BACKUP= $CHILD2_2_SELECT_TABLES
+let $CHILD2_2_SELECT_TABLES=
+  SELECT pkey FROM tbl_b ORDER BY pkey;
+let $CHILD2_2_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--connection master_1
+set @old_spider_quick_mode= @@spider_quick_mode;
+set session spider_quick_mode= 3;
+set @old_spider_quick_page_size= @@spider_quick_page_size;
+set session spider_quick_page_size= 3;
+set @old_spider_quick_page_byte= @@spider_quick_page_byte;
+let $MASTER_1_SET_QUICK_PAGE_BYTE_6=
+  set session spider_quick_page_byte= 6;
+let $MASTER_1_SET_QUICK_PAGE_BYTE_0=
+  set session spider_quick_page_byte= 0;
diff --git a/storage/spider/mysql-test/spider/bugfix/include/return_found_rows_insert_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/return_found_rows_insert_deinit.inc
new file mode 100644
index 00000000..76b7582a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/return_found_rows_insert_deinit.inc
@@ -0,0 +1,11 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/return_found_rows_insert_init.inc b/storage/spider/mysql-test/spider/bugfix/include/return_found_rows_insert_init.inc
new file mode 100644
index 00000000..da6778de
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/return_found_rows_insert_init.inc
@@ -0,0 +1,27 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a", srv "s_2_1"';
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    skey int NOT NULL,
+    dt date NOT NULL,
+    tm time NOT NULL,
+    PRIMARY KEY (skey)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT skey, dt, tm FROM tbl_a ORDER BY skey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %' OR argument LIKE '%replace %';
+--let $MASTER_1_SET_COMMAND=set session spider_direct_dup_insert=1 $STR_SEMICOLON
diff --git a/storage/spider/mysql-test/spider/bugfix/include/return_found_rows_update_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/return_found_rows_update_deinit.inc
new file mode 100644
index 00000000..76b7582a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/return_found_rows_update_deinit.inc
@@ -0,0 +1,11 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/return_found_rows_update_init.inc b/storage/spider/mysql-test/spider/bugfix/include/return_found_rows_update_init.inc
new file mode 100644
index 00000000..884ef74c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/return_found_rows_update_init.inc
@@ -0,0 +1,26 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a", srv "s_2_1"';
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    skey int NOT NULL,
+    dt date NOT NULL,
+    tm time NOT NULL,
+    KEY idx1 (skey,dt)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT skey, dt, tm FROM tbl_a ORDER BY skey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%update %';
diff --git a/storage/spider/mysql-test/spider/bugfix/include/same_server_link_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/same_server_link_deinit.inc
new file mode 100644
index 00000000..a4e8a10d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/same_server_link_deinit.inc
@@ -0,0 +1,11 @@
+--connection master_1
+set global spider_same_server_link= @old_global_spider_same_server_link;
+set session spider_same_server_link= @old_session_spider_same_server_link;
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/same_server_link_init.inc b/storage/spider/mysql-test/spider/bugfix/include/same_server_link_init.inc
new file mode 100644
index 00000000..2c8150c9
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/same_server_link_init.inc
@@ -0,0 +1,15 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_b", host "127.0.0.1", port "$MASTER_1_MYPORT", user "root"';
+--connection master_1
+set @old_global_spider_same_server_link= @@global.spider_same_server_link;
+set @old_session_spider_same_server_link= @@session.spider_same_server_link;
+set global spider_same_server_link= 0;
+set session spider_same_server_link= 0;
diff --git a/storage/spider/mysql-test/spider/bugfix/include/select_by_null_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/select_by_null_deinit.inc
new file mode 100644
index 00000000..76b7582a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/select_by_null_deinit.inc
@@ -0,0 +1,11 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/select_by_null_init.inc b/storage/spider/mysql-test/spider/bugfix/include/select_by_null_init.inc
new file mode 100644
index 00000000..d07ba2a9
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/select_by_null_init.inc
@@ -0,0 +1,24 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a", srv "s_2_1"';
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT pkey FROM tbl_a ORDER BY pkey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
diff --git a/storage/spider/mysql-test/spider/bugfix/include/select_with_backquote_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/select_with_backquote_deinit.inc
new file mode 100644
index 00000000..76b7582a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/select_with_backquote_deinit.inc
@@ -0,0 +1,11 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/select_with_backquote_init.inc b/storage/spider/mysql-test/spider/bugfix/include/select_with_backquote_init.inc
new file mode 100644
index 00000000..37bf690c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/select_with_backquote_init.inc
@@ -0,0 +1,25 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a", srv "s_2_1"';
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    txt_utf8 char(8) NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_1_ENGINE DEFAULT CHARACTER SET utf8;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT pkey, txt_utf8 FROM tbl_a ORDER BY pkey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
diff --git a/storage/spider/mysql-test/spider/bugfix/include/self_reference_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/self_reference_deinit.inc
new file mode 100644
index 00000000..34376d50
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/self_reference_deinit.inc
@@ -0,0 +1,10 @@
+--connection master_1
+set spider_same_server_link= @old_spider_same_server_link;
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/self_reference_init.inc b/storage/spider/mysql-test/spider/bugfix/include/self_reference_init.inc
new file mode 100644
index 00000000..b7e2c4d0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/self_reference_init.inc
@@ -0,0 +1,13 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a", host "127.0.0.1", port "$MASTER_1_MYPORT", user "root"';
+--connection master_1
+set @old_spider_same_server_link= @@spider_same_server_link;
+set spider_same_server_link= ON;
diff --git a/storage/spider/mysql-test/spider/bugfix/include/slave_transaction_retry_errors_5digit_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/slave_transaction_retry_errors_5digit_deinit.inc
new file mode 100644
index 00000000..5ac67cdf
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/slave_transaction_retry_errors_5digit_deinit.inc
@@ -0,0 +1,10 @@
+--connection slave1_1
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../include/deinit_spider.inc
+--source ../t/slave_test_deinit.inc
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/slave_transaction_retry_errors_5digit_init.inc b/storage/spider/mysql-test/spider/bugfix/include/slave_transaction_retry_errors_5digit_init.inc
new file mode 100644
index 00000000..052d6ebb
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/slave_transaction_retry_errors_5digit_init.inc
@@ -0,0 +1,10 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--source ../t/slave_test_init.inc
+--connection slave1_1
+--source ../include/init_spider.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/slave_trx_isolation_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/slave_trx_isolation_deinit.inc
new file mode 100644
index 00000000..7c20b2bc
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/slave_trx_isolation_deinit.inc
@@ -0,0 +1,15 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--connection slave1_1
+set global spider_slave_trx_isolation= @old_spider_slave_trx_isolation;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../include/deinit_spider.inc
+--source ../t/slave_test_deinit.inc
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/slave_trx_isolation_init.inc b/storage/spider/mysql-test/spider/bugfix/include/slave_trx_isolation_init.inc
new file mode 100644
index 00000000..3a058a55
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/slave_trx_isolation_init.inc
@@ -0,0 +1,35 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--source ../t/slave_test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a", srv "s_2_1"';
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT pkey FROM tbl_a ORDER BY pkey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%set %';
+--connection slave1_1
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../include/init_spider.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+set @old_spider_slave_trx_isolation= @@spider_slave_trx_isolation;
+set global spider_slave_trx_isolation= 1;
diff --git a/storage/spider/mysql-test/spider/bugfix/include/spider_table_sts_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/spider_table_sts_deinit.inc
new file mode 100644
index 00000000..01645e85
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/spider_table_sts_deinit.inc
@@ -0,0 +1,12 @@
+--connection master_1
+alter table mysql.spider_table_sts add column checksum bigint unsigned default null after update_time;
+DROP DATABASE IF EXISTS auto_test_local;
+
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/spider_table_sts_init.inc b/storage/spider/mysql-test/spider/bugfix/include/spider_table_sts_init.inc
new file mode 100644
index 00000000..1e438812
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/spider_table_sts_init.inc
@@ -0,0 +1,13 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a", host "127.0.0.1", port "$MASTER_1_MYPORT", user "root"';
+--connection master_1
+alter table mysql.spider_table_sts drop column checksum;
+insert into mysql.spider_table_sts values ('auto_test_local', 'tbl_a', 0, 0, 0, 0, 0, '2019-01-01 00:00:00', '2019-01-01 00:00:00', '2019-01-01 00:00:00');
diff --git a/storage/spider/mysql-test/spider/bugfix/include/sql_mode_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/sql_mode_deinit.inc
new file mode 100644
index 00000000..07f4d39a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/sql_mode_deinit.inc
@@ -0,0 +1,13 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--connection master_1
+set session sql_mode= @old_sql_mode;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/sql_mode_init.inc b/storage/spider/mysql-test/spider/bugfix/include/sql_mode_init.inc
new file mode 100644
index 00000000..65e2f910
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/sql_mode_init.inc
@@ -0,0 +1,40 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $SQL_MODES= real_as_float,pipes_as_concat,ansi_quotes,ignore_space,ignore_bad_table_options,only_full_group_by,no_unsigned_subtraction,no_dir_in_create,postgresql,oracle,mssql,db2,maxdb,no_key_options,no_table_options,no_field_options,mysql323,mysql40,ansi,no_auto_value_on_zero,no_backslash_escapes,strict_trans_tables,strict_all_tables,no_zero_in_date,no_zero_date,allow_invalid_dates,error_for_division_by_zero,traditional,no_auto_create_user,high_not_precedence,no_engine_substitution,pad_char_to_full_length
+if (`SELECT IF(STRCMP('$SERVER_NAME', 'MariaDB') = 0, 1, 0)`)
+{
+  if (`SELECT IF($SERVER_MAJOR_VERSION = 10, 1, 0)`)
+  {
+    if (`SELECT IF($SERVER_MINOR_VERSION >= 3, 1, 0)`)
+    {
+      --let $SQL_MODES= $SQL_MODES,empty_string_is_null,simultaneous_assignment
+    }
+    if (`SELECT IF($SERVER_MINOR_VERSION >= 4, 1, 0)`)
+    {
+      --let $SQL_MODES= $SQL_MODES,time_round_fractional
+    }
+  }
+}
+--connection master_1
+set @old_sql_mode= @@sql_mode;
+eval set session sql_mode= '$SQL_MODES';
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT pkey FROM tbl_a ORDER BY pkey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%sql_mode%';
diff --git a/storage/spider/mysql-test/spider/bugfix/include/sql_mode_mariadb_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/sql_mode_mariadb_deinit.inc
new file mode 100644
index 00000000..0dbff811
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/sql_mode_mariadb_deinit.inc
@@ -0,0 +1 @@
+--source sql_mode_deinit.inc
diff --git a/storage/spider/mysql-test/spider/bugfix/include/sql_mode_mariadb_init.inc b/storage/spider/mysql-test/spider/bugfix/include/sql_mode_mariadb_init.inc
new file mode 100644
index 00000000..8e03b94b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/sql_mode_mariadb_init.inc
@@ -0,0 +1,3 @@
+--source sql_mode_init.inc
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a", srv "s_2_1", wrapper "mariadb"';
diff --git a/storage/spider/mysql-test/spider/bugfix/include/sql_mode_mysql_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/sql_mode_mysql_deinit.inc
new file mode 100644
index 00000000..0dbff811
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/sql_mode_mysql_deinit.inc
@@ -0,0 +1 @@
+--source sql_mode_deinit.inc
diff --git a/storage/spider/mysql-test/spider/bugfix/include/sql_mode_mysql_init.inc b/storage/spider/mysql-test/spider/bugfix/include/sql_mode_mysql_init.inc
new file mode 100644
index 00000000..2cdd56bc
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/sql_mode_mysql_init.inc
@@ -0,0 +1,3 @@
+--source sql_mode_init.inc
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a", srv "s_2_1", wrapper "mysql"';
diff --git a/storage/spider/mysql-test/spider/bugfix/include/strict_group_by_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/strict_group_by_deinit.inc
new file mode 100644
index 00000000..2b0f9cbb
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/strict_group_by_deinit.inc
@@ -0,0 +1,18 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--let $CHILD2_2_DROP_TABLES= $CHILD2_2_DROP_TABLES_BACKUP
+--let $CHILD2_2_CREATE_TABLES= $CHILD2_2_CREATE_TABLES_BACKUP
+--let $CHILD2_2_SELECT_TABLES= $CHILD2_2_SELECT_TABLES_BACKUP
+--connection child2_1
+set global sql_mode= @old_sql_mode;
+--connection master_1
+set session spider_sync_sql_mode= @old_spider_sync_sql_mode;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/strict_group_by_init.inc b/storage/spider/mysql-test/spider/bugfix/include/strict_group_by_init.inc
new file mode 100644
index 00000000..15c2a9ee
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/strict_group_by_init.inc
@@ -0,0 +1,60 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+if (!$HAVE_PARTITION)
+{
+  --source strict_group_by_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a"'
+  PARTITION BY KEY(pkey) (
+    PARTITION pt1 COMMENT='srv "s_2_1"',
+    PARTITION pt2 COMMENT='srv "s_2_2"'
+  );
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    skey int NOT NULL,
+    PRIMARY KEY (pkey),
+    KEY idx1 (skey)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT pkey, skey FROM tbl_a ORDER BY pkey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $CHILD2_2_DROP_TABLES_BACKUP= $CHILD2_2_DROP_TABLES
+let $CHILD2_2_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_2_CREATE_TABLES_BACKUP= $CHILD2_2_CREATE_TABLES
+let $CHILD2_2_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    skey int NOT NULL,
+    PRIMARY KEY (pkey),
+    KEY idx1 (skey)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+--let $CHILD2_2_SELECT_TABLES_BACKUP= $CHILD2_2_SELECT_TABLES
+let $CHILD2_2_SELECT_TABLES=
+  SELECT pkey, skey FROM tbl_a ORDER BY pkey;
+let $CHILD2_2_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--connection master_1
+set @old_spider_sync_sql_mode= @@spider_sync_sql_mode;
+set session spider_sync_sql_mode= FALSE;
+--connection child2_1
+set @old_sql_mode= @@sql_mode;
+set global sql_mode= 'ONLY_FULL_GROUP_BY';
diff --git a/storage/spider/mysql-test/spider/bugfix/include/wait_timeout_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/wait_timeout_deinit.inc
new file mode 100644
index 00000000..e66247c8
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/wait_timeout_deinit.inc
@@ -0,0 +1,18 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--let $CHILD2_2_DROP_TABLES= $CHILD2_2_DROP_TABLES_BACKUP
+--let $CHILD2_2_CREATE_TABLES= $CHILD2_2_CREATE_TABLES_BACKUP
+--let $CHILD2_2_SELECT_TABLES= $CHILD2_2_SELECT_TABLES_BACKUP
+--connection child2_1
+set global wait_timeout= @old_wait_timeout;
+--connection child2_2
+set global wait_timeout= @old_wait_timeout;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/wait_timeout_init.inc b/storage/spider/mysql-test/spider/bugfix/include/wait_timeout_init.inc
new file mode 100644
index 00000000..d56d7a20
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/wait_timeout_init.inc
@@ -0,0 +1,56 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+if (!$HAVE_PARTITION)
+{
+  --source wait_timeout_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a"'
+  PARTITION BY KEY(pkey) (
+    PARTITION pt1 COMMENT='srv "s_2_1"',
+    PARTITION pt2 COMMENT='srv "s_2_2"'
+  );
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT pkey FROM tbl_a ORDER BY pkey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+--let $CHILD2_2_DROP_TABLES_BACKUP= $CHILD2_2_DROP_TABLES
+let $CHILD2_2_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_2_CREATE_TABLES_BACKUP= $CHILD2_2_CREATE_TABLES
+let $CHILD2_2_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+--let $CHILD2_2_SELECT_TABLES_BACKUP= $CHILD2_2_SELECT_TABLES
+let $CHILD2_2_SELECT_TABLES=
+  SELECT pkey FROM tbl_a ORDER BY pkey;
+let $CHILD2_2_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+--connection child2_1
+set @old_wait_timeout= @@wait_timeout;
+set global wait_timeout= 1;
+--connection child2_2
+set @old_wait_timeout= @@wait_timeout;
+set global wait_timeout= 1;
diff --git a/storage/spider/mysql-test/spider/bugfix/include/wrapper_mariadb_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/wrapper_mariadb_deinit.inc
new file mode 100644
index 00000000..76b7582a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/wrapper_mariadb_deinit.inc
@@ -0,0 +1,11 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/wrapper_mariadb_init.inc b/storage/spider/mysql-test/spider/bugfix/include/wrapper_mariadb_init.inc
new file mode 100644
index 00000000..df3d44c3
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/wrapper_mariadb_init.inc
@@ -0,0 +1,24 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a", srv "s_2_1", wrapper "mariadb"';
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT pkey FROM tbl_a ORDER BY pkey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
diff --git a/storage/spider/mysql-test/spider/bugfix/include/xa_cmd_deinit.inc b/storage/spider/mysql-test/spider/bugfix/include/xa_cmd_deinit.inc
new file mode 100644
index 00000000..76b7582a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/xa_cmd_deinit.inc
@@ -0,0 +1,11 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/include/xa_cmd_init.inc b/storage/spider/mysql-test/spider/bugfix/include/xa_cmd_init.inc
new file mode 100644
index 00000000..5c607bd1
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/include/xa_cmd_init.inc
@@ -0,0 +1,24 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a", srv "s_2_1"';
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT pkey FROM tbl_a ORDER BY pkey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
diff --git a/storage/spider/mysql-test/spider/bugfix/my.cnf b/storage/spider/mysql-test/spider/bugfix/my.cnf
new file mode 100644
index 00000000..b7f76a63
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/my.cnf
@@ -0,0 +1,2 @@
+!include include/default_mysqld.cnf
+!include my_1_1.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/my_1_1.cnf b/storage/spider/mysql-test/spider/bugfix/my_1_1.cnf
new file mode 100644
index 00000000..5f17295d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/my_1_1.cnf
@@ -0,0 +1,44 @@
+[mysqld.1.1]
+log-bin=                  master-bin
+loose_handlersocket_port=                20000
+loose_handlersocket_port_wr=             20001
+loose_handlersocket_threads=             2
+loose_handlersocket_threads_wr=          1
+loose_handlersocket_support_merge_table= 0
+loose_handlersocket_direct_update_mode=  2
+loose_handlersocket_unlimited_boundary=  65536
+loose_handlersocket_bulk_insert=         0
+loose_handlersocket_bulk_insert_timeout= 0
+loose_handlersocket_general_log=         1
+loose_handlersocket_timeout=             30
+loose_handlersocket_close_table_interval=2
+open_files_limit=                        4096
+loose_partition=                         1
+
+[ENV]
+USE_GEOMETRY_TEST=        1
+USE_FULLTEXT_TEST=        1
+USE_HA_TEST=              1
+USE_GENERAL_LOG=          1
+USE_REPLICATION=          1
+MASTER_1_MYPORT=          @mysqld.1.1.port
+MASTER_1_HSRPORT=         20000
+MASTER_1_HSWPORT=         20001
+MASTER_1_MYSOCK=          @mysqld.1.1.socket
+MASTER_1_ENGINE_TYPE=     Spider
+#MASTER_1_ENGINE_TYPE=     MyISAM
+MASTER_1_ENGINE=          ENGINE=Spider
+MASTER_1_CHARSET=         DEFAULT CHARSET=utf8
+MASTER_1_ENGINE2=         ENGINE=MyISAM
+MASTER_1_CHARSET2=        DEFAULT CHARSET=utf8
+MASTER_1_CHARSET3=        DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci
+
+STR_SEMICOLON=            ;
+
+#The followings are set in include/init_xxx.inc files
+# MASTER_1_COMMENT_2_1
+# MASTER_1_COMMENT2_2_1
+# MASTER_1_COMMENT3_2_1
+# MASTER_1_COMMENT4_2_1
+# MASTER_1_COMMENT5_2_1
+# MASTER_1_COMMENT_P_2_1
diff --git a/storage/spider/mysql-test/spider/bugfix/my_2_1.cnf b/storage/spider/mysql-test/spider/bugfix/my_2_1.cnf
new file mode 100644
index 00000000..24161645
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/my_2_1.cnf
@@ -0,0 +1,56 @@
+[mysqld.2.1]
+loose_handlersocket_port=                20002
+loose_handlersocket_port_wr=             20003
+loose_handlersocket_threads=             2
+loose_handlersocket_threads_wr=          1
+loose_handlersocket_support_merge_table= 0
+loose_handlersocket_direct_update_mode=  2
+loose_handlersocket_unlimited_boundary=  65536
+loose_handlersocket_bulk_insert=         0
+loose_handlersocket_bulk_insert_timeout= 0
+loose_handlersocket_general_log=         1
+loose_handlersocket_timeout=             30
+loose_handlersocket_close_table_interval=2
+open_files_limit=                        4096
+
+[ENV]
+USE_CHILD_GROUP2=         1
+OUTPUT_CHILD_GROUP2=      0
+CHILD2_1_MYPORT=          @mysqld.2.1.port
+CHILD2_1_HSRPORT=         20002
+CHILD2_1_HSWPORT=         20003
+CHILD2_1_MYSOCK=          @mysqld.2.1.socket
+CHILD2_1_ENGINE_TYPE=     InnoDB
+CHILD2_1_ENGINE=          ENGINE=InnoDB
+CHILD2_1_CHARSET=         DEFAULT CHARSET=utf8
+CHILD2_1_CHARSET2=        DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci
+CHILD2_1_FT_MYPORT=       @mysqld.2.1.port
+CHILD2_1_FT_MYSOCK=       @mysqld.2.1.socket
+CHILD2_1_FT_ENGINE_TYPE=  MyISAM
+CHILD2_1_FT_ENGINE=       ENGINE=MyISAM
+CHILD2_1_FT_CHARSET=      DEFAULT CHARSET=utf8
+CHILD2_1_GM_MYPORT=       @mysqld.2.1.port
+CHILD2_1_GM_MYSOCK=       @mysqld.2.1.socket
+CHILD2_1_GM_ENGINE_TYPE=  MyISAM
+CHILD2_1_GM_ENGINE=       ENGINE=MyISAM
+CHILD2_1_GM_CHARSET=      DEFAULT CHARSET=utf8
+
+#The followings are set in include/init_xxx.inc files
+# CHILD2_1_DROP_TABLES
+# CHILD2_1_CREATE_TABLES
+# CHILD2_1_SELECT_TABLES
+# CHILD2_1_DROP_TABLES2
+# CHILD2_1_CREATE_TABLES2
+# CHILD2_1_SELECT_TABLES2
+# CHILD2_1_DROP_TABLES3
+# CHILD2_1_CREATE_TABLES3
+# CHILD2_1_SELECT_TABLES3
+# CHILD2_1_DROP_TABLES4
+# CHILD2_1_CREATE_TABLES4
+# CHILD2_1_SELECT_TABLES4
+# CHILD2_1_DROP_TABLES5
+# CHILD2_1_CREATE_TABLES5
+# CHILD2_1_SELECT_TABLES5
+# CHILD2_1_DROP_TABLES6
+# CHILD2_1_CREATE_TABLES6
+# CHILD2_1_SELECT_TABLES6
diff --git a/storage/spider/mysql-test/spider/bugfix/my_2_2.cnf b/storage/spider/mysql-test/spider/bugfix/my_2_2.cnf
new file mode 100644
index 00000000..2d3c2a89
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/my_2_2.cnf
@@ -0,0 +1,38 @@
+[mysqld.2.2]
+loose_handlersocket_port=                20004
+loose_handlersocket_port_wr=             20005
+loose_handlersocket_threads=             2
+loose_handlersocket_threads_wr=          1
+loose_handlersocket_support_merge_table= 0
+loose_handlersocket_direct_update_mode=  2
+loose_handlersocket_unlimited_boundary=  65536
+loose_handlersocket_bulk_insert=         0
+loose_handlersocket_bulk_insert_timeout= 0
+loose_handlersocket_general_log=         1
+loose_handlersocket_timeout=             30
+loose_handlersocket_close_table_interval=2
+open_files_limit=                        4096
+
+[ENV]
+CHILD2_2_MYPORT=          @mysqld.2.2.port
+CHILD2_2_HSRPORT=         20004
+CHILD2_2_HSWPORT=         20005
+CHILD2_2_MYSOCK=          @mysqld.2.2.socket
+CHILD2_2_ENGINE_TYPE=     InnoDB
+CHILD2_2_ENGINE=          ENGINE=InnoDB
+CHILD2_2_CHARSET=         DEFAULT CHARSET=utf8
+CHILD2_2_FT_MYPORT=       @mysqld.2.2.port
+CHILD2_2_FT_MYSOCK=       @mysqld.2.2.socket
+CHILD2_2_FT_ENGINE_TYPE=  MyISAM
+CHILD2_2_FT_ENGINE=       ENGINE=MyISAM
+CHILD2_2_FT_CHARSET=      DEFAULT CHARSET=utf8
+CHILD2_2_GM_MYPORT=       @mysqld.2.2.port
+CHILD2_2_GM_MYSOCK=       @mysqld.2.2.socket
+CHILD2_2_GM_ENGINE_TYPE=  MyISAM
+CHILD2_2_GM_ENGINE=       ENGINE=MyISAM
+CHILD2_2_GM_CHARSET=      DEFAULT CHARSET=utf8
+
+#The followings are set in include/init_xxx.inc files
+# CHILD2_2_DROP_TABLES
+# CHILD2_2_CREATE_TABLES
+# CHILD2_2_SELECT_TABLES
diff --git a/storage/spider/mysql-test/spider/bugfix/my_2_3.cnf b/storage/spider/mysql-test/spider/bugfix/my_2_3.cnf
new file mode 100644
index 00000000..024da651
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/my_2_3.cnf
@@ -0,0 +1,8 @@
+[mysqld.2.3]
+
+[ENV]
+CHILD2_3_MYPORT=          @mysqld.2.3.port
+CHILD2_3_MYSOCK=          @mysqld.2.3.socket
+CHILD2_3_ENGINE_TYPE=     InnoDB
+CHILD2_3_ENGINE=          ENGINE=InnoDB
+CHILD2_3_CHARSET=         DEFAULT CHARSET=utf8
diff --git a/storage/spider/mysql-test/spider/bugfix/my_3_1.cnf b/storage/spider/mysql-test/spider/bugfix/my_3_1.cnf
new file mode 100644
index 00000000..fad21607
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/my_3_1.cnf
@@ -0,0 +1,11 @@
+[mysqld.3.1]
+loose_partition=                         1
+
+[ENV]
+USE_CHILD_GROUP3=         1
+OUTPUT_CHILD_GROUP3=      0
+CHILD3_1_MYPORT=          @mysqld.3.1.port
+CHILD3_1_MYSOCK=          @mysqld.3.1.socket
+CHILD3_1_ENGINE_TYPE=     InnoDB
+CHILD3_1_ENGINE=          ENGINE=InnoDB
+CHILD3_1_CHARSET=         DEFAULT CHARSET=utf8
diff --git a/storage/spider/mysql-test/spider/bugfix/my_3_2.cnf b/storage/spider/mysql-test/spider/bugfix/my_3_2.cnf
new file mode 100644
index 00000000..6f027b6f
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/my_3_2.cnf
@@ -0,0 +1,9 @@
+[mysqld.3.2]
+loose_partition=                         1
+
+[ENV]
+CHILD3_2_MYPORT=          @mysqld.3.2.port
+CHILD3_2_MYSOCK=          @mysqld.3.2.socket
+CHILD3_2_ENGINE_TYPE=     InnoDB
+CHILD3_2_ENGINE=          ENGINE=InnoDB
+CHILD3_2_CHARSET=         DEFAULT CHARSET=utf8
diff --git a/storage/spider/mysql-test/spider/bugfix/my_3_3.cnf b/storage/spider/mysql-test/spider/bugfix/my_3_3.cnf
new file mode 100644
index 00000000..fbb33694
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/my_3_3.cnf
@@ -0,0 +1,9 @@
+[mysqld.3.3]
+loose_partition=                         1
+
+[ENV]
+CHILD3_3_MYPORT=          @mysqld.3.3.port
+CHILD3_3_MYSOCK=          @mysqld.3.3.socket
+CHILD3_3_ENGINE_TYPE=     InnoDB
+CHILD3_3_ENGINE=          ENGINE=InnoDB
+CHILD3_3_CHARSET=         DEFAULT CHARSET=utf8
diff --git a/storage/spider/mysql-test/spider/bugfix/my_4_1.cnf b/storage/spider/mysql-test/spider/bugfix/my_4_1.cnf
new file mode 100644
index 00000000..d1812a48
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/my_4_1.cnf
@@ -0,0 +1,9 @@
+[mysqld.4.1]
+loose_partition=                         1
+
+[ENV]
+SLAVE1_1_MYPORT=          @mysqld.4.1.port
+SLAVE1_1_MYSOCK=          @mysqld.4.1.socket
+SLAVE1_1_ENGINE_TYPE=     MyISAM
+SLAVE1_1_ENGINE=          ENGINE=MyISAM
+SLAVE1_1_CHARSET=         DEFAULT CHARSET=utf8
diff --git a/storage/spider/mysql-test/spider/bugfix/r/checksum_table_with_quick_mode_3.result b/storage/spider/mysql-test/spider/bugfix/r/checksum_table_with_quick_mode_3.result
new file mode 100644
index 00000000..bd423d93
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/checksum_table_with_quick_mode_3.result
@@ -0,0 +1,100 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_quick_mode= @@spider_quick_mode;
+set session spider_quick_mode= 3;
+set @old_spider_quick_page_size= @@spider_quick_page_size;
+set session spider_quick_page_size= 3;
+
+this test is for MDEV-16279
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_a (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_a (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+FLUSH TABLES;
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CHECKSUM TABLE tbl_a EXTENDED;
+Table	Checksum
+auto_test_local.tbl_a	1061386331
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%checksum %';
+argument
+checksum table `auto_test_remote`.`tbl_a` extended
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%checksum %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_quick_mode= @old_spider_quick_mode;
+set session spider_quick_page_size= @old_spider_quick_page_size;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/cp932_column.result b/storage/spider/mysql-test/spider/bugfix/r/cp932_column.result
new file mode 100644
index 00000000..30b333c5
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/cp932_column.result
@@ -0,0 +1,84 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_direct_dup_insert= @@spider_direct_dup_insert;
+set session spider_direct_dup_insert= 1;
+
+this test is for MDEV-18992
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+txt_utf8 char(8) NOT NULL,
+txt_cp932 char(8) NOT NULL COLLATE cp932_japanese_ci,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE DEFAULT CHARACTER SET utf8 MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey,txt_utf8,txt_cp932) VALUES (0,'',''),(1,'',''),(2,'',''),(3,'',''),(4,'',''),(5,'',''),(6,'',''),(7,'',''),(8,'',''),(9,'','');
+FLUSH TABLES;
+
+test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SET NAMES cp932;
+INSERT INTO tbl_a (pkey,txt_utf8,txt_cp932) VALUES (10,'','’†�‘');
+INSERT INTO tbl_a (pkey,txt_utf8,txt_cp932) VALUES (0,'','') ON DUPLICATE KEY UPDATE txt_cp932 = '’†�‘';
+UPDATE tbl_a SET txt_cp932 = '’†�‘' WHERE pkey = 2;
+SET NAMES utf8;
+connection child2_1;
+SET NAMES cp932;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %' OR argument LIKE '%update %';
+argument
+insert into `auto_test_remote`.`tbl_a`(`pkey`,`txt_utf8`,`txt_cp932`)values(10,'',_cp932'\\x92\\x86\\x8D\\x91')
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`txt_utf8`,`txt_cp932`)values(0,'',_cp932'') on duplicate key update `txt_cp932` = _cp932'\x92\x86\x8D\x91'
+update `auto_test_remote`.`tbl_a` set `txt_cp932` = _cp932'\x92\x86\x8D\x91' where (`pkey` = 2)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %' OR argument LIKE '%update %'
+SELECT pkey, txt_utf8, txt_cp932 FROM tbl_a ORDER BY pkey;
+pkey	txt_utf8	txt_cp932
+0		’†�‘
+1		
+2		’†�‘
+3		
+4		
+5		
+6		
+7		
+8		
+9		
+10		’†�‘
+SET NAMES utf8;
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_direct_dup_insert= @old_spider_direct_dup_insert;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/delete_with_float_column_mariadb.result b/storage/spider/mysql-test/spider/bugfix/r/delete_with_float_column_mariadb.result
new file mode 100644
index 00000000..d9fb00a0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/delete_with_float_column_mariadb.result
@@ -0,0 +1,85 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+for slave1_1
+connection slave1_1;
+connection master_1;
+set @old_binlog_format= @@binlog_format;
+set session binlog_format= 'ROW';
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection slave1_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+connection slave1_1;
+connection master_1;
+SET SESSION sql_log_bin= 0;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+f float DEFAULT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+SET SESSION sql_log_bin= 1;
+connection slave1_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+f float DEFAULT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+connection master_1;
+INSERT INTO tbl_a (pkey, f) VALUES (0,NULL);
+INSERT INTO tbl_a (pkey, f) VALUES (1,0.671437);
+DELETE FROM tbl_a WHERE pkey = 0;
+DELETE FROM tbl_a WHERE pkey = 1;
+connection slave1_1;
+connection master_1;
+SET SESSION sql_log_bin= 0;
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%delete %';
+argument
+delete from `auto_test_remote`.`tbl_a` where `pkey` = 0 and `f` is null limit 1
+delete from `auto_test_remote`.`tbl_a` where `pkey` = 1 and `f` = cast(0.671437 as float) limit 1
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%delete %'
+SELECT pkey, f FROM tbl_a ORDER BY pkey;
+pkey	f
+connection slave1_1;
+SELECT pkey, f FROM tbl_a ORDER BY pkey;
+pkey	f
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection slave1_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session binlog_format= @old_binlog_format;
+connection slave1_1;
+for slave1_1
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/delete_with_float_column_mysql.result b/storage/spider/mysql-test/spider/bugfix/r/delete_with_float_column_mysql.result
new file mode 100644
index 00000000..9b11de7c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/delete_with_float_column_mysql.result
@@ -0,0 +1,85 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+for slave1_1
+connection slave1_1;
+connection master_1;
+set @old_binlog_format= @@binlog_format;
+set session binlog_format= 'ROW';
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection slave1_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+connection slave1_1;
+connection master_1;
+SET SESSION sql_log_bin= 0;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+f float DEFAULT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+SET SESSION sql_log_bin= 1;
+connection slave1_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+f float DEFAULT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+connection master_1;
+INSERT INTO tbl_a (pkey, f) VALUES (0,NULL);
+INSERT INTO tbl_a (pkey, f) VALUES (1,0.671437);
+DELETE FROM tbl_a WHERE pkey = 0;
+DELETE FROM tbl_a WHERE pkey = 1;
+connection slave1_1;
+connection master_1;
+SET SESSION sql_log_bin= 0;
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%delete %';
+argument
+delete from `auto_test_remote`.`tbl_a` where `pkey` = 0 and `f` is null limit 1
+delete from `auto_test_remote`.`tbl_a` where `pkey` = 1 and `f` = /* create function to_float(a decimal(20,6)) returns float return a */ to_float(0.671437) limit 1
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%delete %'
+SELECT pkey, f FROM tbl_a ORDER BY pkey;
+pkey	f
+connection slave1_1;
+SELECT pkey, f FROM tbl_a ORDER BY pkey;
+pkey	f
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection slave1_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session binlog_format= @old_binlog_format;
+connection slave1_1;
+for slave1_1
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/direct_sql_with_comma_pwd.result b/storage/spider/mysql-test/spider/bugfix/r/direct_sql_with_comma_pwd.result
new file mode 100644
index 00000000..b485d645
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/direct_sql_with_comma_pwd.result
@@ -0,0 +1,37 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection child2_1;
+GRANT ALL ON *.* TO tu@'%' IDENTIFIED BY 'pass,1234';
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+CREATE TEMPORARY TABLE tmp_a (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE2
+SELECT spider_direct_sql('SELECT 22', 'tmp_a', 'srv "s_2_1", database "test", password "pass,1234", user "tu"');
+spider_direct_sql('SELECT 22', 'tmp_a', 'srv "s_2_1", database "test", password "pass,1234", user "tu"')
+1
+SELECT pkey FROM tmp_a;
+pkey
+22
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP USER tu@'%';
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/direct_sql_with_tmp_table.result b/storage/spider/mysql-test/spider/bugfix/r/direct_sql_with_tmp_table.result
new file mode 100644
index 00000000..65beb8a4
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/direct_sql_with_tmp_table.result
@@ -0,0 +1,33 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+CREATE TEMPORARY TABLE tmp_a (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE2
+SELECT spider_direct_sql('SELECT 22', 'tmp_a', 'srv "s_2_1", database "test"');
+spider_direct_sql('SELECT 22', 'tmp_a', 'srv "s_2_1", database "test"')
+1
+SELECT pkey FROM tmp_a;
+pkey
+22
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/group_by_order_by_limit.result b/storage/spider/mysql-test/spider/bugfix/r/group_by_order_by_limit.result
new file mode 100644
index 00000000..8a2bcb73
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/group_by_order_by_limit.result
@@ -0,0 +1,117 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+this test is for MDEV-16520
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+CHILD2_2_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+skey int NOT NULL,
+PRIMARY KEY (pkey),
+KEY idx1 (skey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey,skey) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+INSERT INTO tbl_a (pkey,skey) VALUES (10,10),(11,11),(12,12),(13,13),(14,14),(15,15),(16,16),(17,17),(18,18),(19,19);
+INSERT INTO tbl_a (pkey,skey) VALUES (20,5),(21,6),(22,7),(23,8),(24,9),(25,10),(26,11),(27,12),(28,13),(29,14);
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT skey, count(*) cnt FROM tbl_a GROUP BY skey ORDER BY cnt DESC, skey DESC LIMIT 5;
+skey	cnt
+14	2
+13	2
+12	2
+11	2
+10	2
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select count(0),`skey` from `auto_test_remote`.`tbl_a` group by `skey` order by `skey`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey, skey FROM tbl_a ORDER BY pkey;
+pkey	skey
+1	1
+3	3
+5	5
+7	7
+9	9
+11	11
+13	13
+15	15
+17	17
+19	19
+21	6
+23	8
+25	10
+27	12
+29	14
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select count(0),`skey` from `auto_test_remote2`.`tbl_a` group by `skey` order by `skey`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey, skey FROM tbl_a ORDER BY pkey;
+pkey	skey
+0	0
+2	2
+4	4
+6	6
+8	8
+10	10
+12	12
+14	14
+16	16
+18	18
+20	5
+22	7
+24	9
+26	11
+28	13
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/insert_select.result b/storage/spider/mysql-test/spider/bugfix/r/insert_select.result
new file mode 100644
index 00000000..0783995e
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/insert_select.result
@@ -0,0 +1,102 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_direct_dup_insert= @@spider_direct_dup_insert;
+set session spider_direct_dup_insert= 1;
+
+this test is for MDEV-16399
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+CHILD2_1_CREATE_TABLES2
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+skey int NOT NULL,
+dt date NOT NULL,
+tm time NOT NULL,
+KEY idx1 (skey,dt,tm)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+CREATE TABLE tbl_b (
+pkey int NOT NULL,
+dt datetime NOT NULL,
+PRIMARY KEY (pkey),
+KEY idx1 (dt)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1_2
+INSERT INTO tbl_a (skey, dt, tm) VALUES (0, '2012-01-01', '12:00:00'),(1, '2012-02-01', '12:00:00'),(2, '2012-03-01', '12:00:00'),(3, '2012-04-01', '12:00:00'),(4, '2012-05-01', '12:00:00'),(5, '2012-06-01', '12:00:00'),(6, '2012-07-01', '12:00:00'),(7, '2012-08-01', '12:00:00'),(8, '2012-09-01', '12:00:00'),(9, '2012-10-01', '12:00:00');
+INSERT INTO tbl_a (skey, dt, tm) VALUES (0, '2013-01-01', '13:00:00'),(1, '2013-02-01', '13:00:00'),(2, '2013-03-01', '13:00:00'),(3, '2013-04-01', '13:00:00'),(4, '2013-05-01', '13:00:00'),(5, '2013-06-01', '13:00:00'),(6, '2013-07-01', '13:00:00'),(7, '2013-08-01', '13:00:00'),(8, '2013-09-01', '13:00:00'),(9, '2013-10-01', '13:00:00');
+INSERT INTO tbl_a (skey, dt, tm) VALUES (0, '2012-11-01', '11:00:00'),(1, '2012-12-01', '11:00:00'),(2, '2012-11-30', '11:00:00'),(3, '2012-11-29', '11:00:00'),(4, '2012-11-28', '11:00:00'),(5, '2012-11-27', '11:00:00'),(6, '2012-11-26', '11:00:00'),(7, '2012-11-25', '11:00:00'),(8, '2012-11-24', '11:00:00'),(9, '2012-11-23', '11:00:00');
+FLUSH TABLES;
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+INSERT IGNORE INTO tbl_b (SELECT skey, CAST(CONCAT(dt, ' ', tm) AS datetime) FROM tbl_a WHERE skey = 4 AND dt > DATE_ADD('2012-12-01', INTERVAL -10 DAY));
+INSERT IGNORE INTO tbl_b (SELECT skey, CAST(CONCAT(dt, ' ', tm) AS datetime) FROM tbl_a WHERE skey = 3 AND dt > DATE_ADD('2012-12-01', INTERVAL -10 DAY));
+INSERT IGNORE INTO tbl_b (SELECT skey, CAST(CONCAT(dt, ' ', tm) AS datetime) FROM tbl_a WHERE skey = 2 AND dt > DATE_ADD('2012-12-01', INTERVAL -10 DAY));
+INSERT IGNORE INTO tbl_b (SELECT skey, CAST(CONCAT(dt, ' ', tm) AS datetime) FROM tbl_a WHERE skey = 1 AND dt > DATE_ADD('2012-12-01', INTERVAL -10 DAY));
+INSERT IGNORE INTO tbl_b (SELECT skey, CAST(CONCAT(dt, ' ', tm) AS datetime) FROM tbl_a WHERE skey = 0 AND dt > DATE_ADD('2012-12-01', INTERVAL -10 DAY));
+INSERT IGNORE INTO tbl_b (SELECT skey, CAST(CONCAT(dt, ' ', tm) AS datetime) FROM tbl_a WHERE skey = 9 AND dt > DATE_ADD('2012-12-01', INTERVAL -10 DAY));
+INSERT IGNORE INTO tbl_b (SELECT skey, CAST(CONCAT(dt, ' ', tm) AS datetime) FROM tbl_a WHERE skey = 8 AND dt > DATE_ADD('2012-12-01', INTERVAL -10 DAY));
+INSERT IGNORE INTO tbl_b (SELECT skey, CAST(CONCAT(dt, ' ', tm) AS datetime) FROM tbl_a WHERE skey = 7 AND dt > DATE_ADD('2012-12-01', INTERVAL -10 DAY));
+INSERT IGNORE INTO tbl_b (SELECT skey, CAST(CONCAT(dt, ' ', tm) AS datetime) FROM tbl_a WHERE skey = 6 AND dt > DATE_ADD('2012-12-01', INTERVAL -10 DAY));
+INSERT IGNORE INTO tbl_b (SELECT skey, CAST(CONCAT(dt, ' ', tm) AS datetime) FROM tbl_a WHERE skey = 5 AND dt > DATE_ADD('2012-12-01', INTERVAL -10 DAY));
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select t0.`skey` `skey`,cast((concat(t0.`dt` , _latin1' ' , t0.`tm`)) as datetime) `CAST(CONCAT(dt, ' ', tm) AS datetime)` from `auto_test_remote`.`tbl_a` t0 where ((t0.`skey` = 4) and (t0.`dt` > _latin1'2012-11-21')) lock in share mode
+select t0.`skey` `skey`,cast((concat(t0.`dt` , _latin1' ' , t0.`tm`)) as datetime) `CAST(CONCAT(dt, ' ', tm) AS datetime)` from `auto_test_remote`.`tbl_a` t0 where ((t0.`skey` = 3) and (t0.`dt` > _latin1'2012-11-21')) lock in share mode
+select t0.`skey` `skey`,cast((concat(t0.`dt` , _latin1' ' , t0.`tm`)) as datetime) `CAST(CONCAT(dt, ' ', tm) AS datetime)` from `auto_test_remote`.`tbl_a` t0 where ((t0.`skey` = 2) and (t0.`dt` > _latin1'2012-11-21')) lock in share mode
+select t0.`skey` `skey`,cast((concat(t0.`dt` , _latin1' ' , t0.`tm`)) as datetime) `CAST(CONCAT(dt, ' ', tm) AS datetime)` from `auto_test_remote`.`tbl_a` t0 where ((t0.`skey` = 1) and (t0.`dt` > _latin1'2012-11-21')) lock in share mode
+select t0.`skey` `skey`,cast((concat(t0.`dt` , _latin1' ' , t0.`tm`)) as datetime) `CAST(CONCAT(dt, ' ', tm) AS datetime)` from `auto_test_remote`.`tbl_a` t0 where ((t0.`skey` = 0) and (t0.`dt` > _latin1'2012-11-21')) lock in share mode
+select t0.`skey` `skey`,cast((concat(t0.`dt` , _latin1' ' , t0.`tm`)) as datetime) `CAST(CONCAT(dt, ' ', tm) AS datetime)` from `auto_test_remote`.`tbl_a` t0 where ((t0.`skey` = 9) and (t0.`dt` > _latin1'2012-11-21')) lock in share mode
+select t0.`skey` `skey`,cast((concat(t0.`dt` , _latin1' ' , t0.`tm`)) as datetime) `CAST(CONCAT(dt, ' ', tm) AS datetime)` from `auto_test_remote`.`tbl_a` t0 where ((t0.`skey` = 8) and (t0.`dt` > _latin1'2012-11-21')) lock in share mode
+select t0.`skey` `skey`,cast((concat(t0.`dt` , _latin1' ' , t0.`tm`)) as datetime) `CAST(CONCAT(dt, ' ', tm) AS datetime)` from `auto_test_remote`.`tbl_a` t0 where ((t0.`skey` = 7) and (t0.`dt` > _latin1'2012-11-21')) lock in share mode
+select t0.`skey` `skey`,cast((concat(t0.`dt` , _latin1' ' , t0.`tm`)) as datetime) `CAST(CONCAT(dt, ' ', tm) AS datetime)` from `auto_test_remote`.`tbl_a` t0 where ((t0.`skey` = 6) and (t0.`dt` > _latin1'2012-11-21')) lock in share mode
+select t0.`skey` `skey`,cast((concat(t0.`dt` , _latin1' ' , t0.`tm`)) as datetime) `CAST(CONCAT(dt, ' ', tm) AS datetime)` from `auto_test_remote`.`tbl_a` t0 where ((t0.`skey` = 5) and (t0.`dt` > _latin1'2012-11-21')) lock in share mode
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey, dt FROM tbl_b ORDER BY pkey;
+pkey	dt
+0	2013-01-01 13:00:00
+1	2012-12-01 11:00:00
+2	2012-11-30 11:00:00
+3	2012-11-29 11:00:00
+4	2012-11-28 11:00:00
+5	2012-11-27 11:00:00
+6	2012-11-26 11:00:00
+7	2012-11-25 11:00:00
+8	2012-11-24 11:00:00
+9	2012-11-23 11:00:00
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_direct_dup_insert= @old_spider_direct_dup_insert;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/mdev_19866.result b/storage/spider/mysql-test/spider/bugfix/r/mdev_19866.result
new file mode 100644
index 00000000..5d483481
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/mdev_19866.result
@@ -0,0 +1,111 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+this test is for MDEV-19866
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+CHILD2_2_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+val char(1) NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey,val) VALUES (1,'1'),(2,'2'),(3,'3'),(4,'4');
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT * FROM tbl_a;
+pkey	val
+1	1
+3	3
+2	2
+4	4
+SELECT * FROM tbl_a WHERE pkey = 1;
+pkey	val
+1	1
+SELECT * FROM tbl_a;
+pkey	val
+1	1
+3	3
+2	2
+4	4
+SELECT * FROM tbl_a WHERE pkey = 2;
+pkey	val
+2	2
+SELECT * FROM tbl_a;
+pkey	val
+1	1
+3	3
+2	2
+4	4
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey`,`val` from `auto_test_remote`.`tbl_a`
+select `pkey`,`val` from `auto_test_remote`.`tbl_a` where `pkey` = 1
+select `pkey`,`val` from `auto_test_remote`.`tbl_a`
+select `pkey`,`val` from `auto_test_remote`.`tbl_a`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+1	1
+3	3
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey`,`val` from `auto_test_remote2`.`tbl_a`
+select `pkey`,`val` from `auto_test_remote2`.`tbl_a`
+select `pkey`,`val` from `auto_test_remote2`.`tbl_a` where `pkey` = 2
+select `pkey`,`val` from `auto_test_remote2`.`tbl_a`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+2	2
+4	4
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/mdev_20100.result b/storage/spider/mysql-test/spider/bugfix/r/mdev_20100.result
new file mode 100644
index 00000000..9d2297b4
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/mdev_20100.result
@@ -0,0 +1,119 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+this test is for MDEV-20100
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) ENGINE=Spider PARTITION BY RANGE(a) (
+PARTITION pt1 VALUES LESS THAN (5) COMMENT='srv "s_2_1", table "ta_r2"',
+PARTITION pt2 VALUES LESS THAN (10) COMMENT='srv "s_2_1", table "ta_r3"',
+PARTITION pt3 VALUES LESS THAN MAXVALUE COMMENT='srv "s_2_1", table "ta_r4"'
+  )
+INSERT INTO tbl_a (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a, b, c FROM tbl_a PARTITION (pt2) WHERE b = 'c';
+a	b	c
+5	c	2001-12-31 23:59:59
+SELECT a, b, c FROM tbl_a PARTITION (pt1,pt2);
+a	b	c
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+SELECT a, b, c FROM tbl_a PARTITION (pt3) WHERE b = 'c';
+a	b	c
+SELECT a, b, c FROM tbl_a PARTITION (pt1,pt2);
+a	b	c
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+SELECT a, b, c FROM tbl_a PARTITION (pt1) WHERE b = 'c';
+a	b	c
+SELECT a, b, c FROM tbl_a PARTITION (pt1,pt3);
+a	b	c
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+SELECT a, b, c FROM tbl_a PARTITION (pt1) WHERE b = 'c';
+a	b	c
+SELECT a, b, c FROM tbl_a PARTITION (pt2,pt3);
+a	b	c
+5	c	2001-12-31 23:59:59
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select t0.`a` `a`,t0.`b` `b`,t0.`c` `c` from `auto_test_remote`.`ta_r3` t0 where (t0.`b` = 'c')
+select `a`,`b`,`c` from `auto_test_remote`.`ta_r2`
+select `a`,`b`,`c` from `auto_test_remote`.`ta_r3`
+select t0.`a` `a`,t0.`b` `b`,t0.`c` `c` from `auto_test_remote`.`ta_r4` t0 where (t0.`b` = 'c')
+select `a`,`b`,`c` from `auto_test_remote`.`ta_r2`
+select `a`,`b`,`c` from `auto_test_remote`.`ta_r3`
+select t0.`a` `a`,t0.`b` `b`,t0.`c` `c` from `auto_test_remote`.`ta_r2` t0 where (t0.`b` = 'c')
+select `a`,`b`,`c` from `auto_test_remote`.`ta_r2`
+select `a`,`b`,`c` from `auto_test_remote`.`ta_r4`
+select t0.`a` `a`,t0.`b` `b`,t0.`c` `c` from `auto_test_remote`.`ta_r2` t0 where (t0.`b` = 'c')
+select `a`,`b`,`c` from `auto_test_remote`.`ta_r3`
+select `a`,`b`,`c` from `auto_test_remote`.`ta_r4`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT a, b, c FROM ta_r2 ORDER BY a ;
+SELECT a, b, c FROM ta_r3 ORDER BY a ;
+SELECT a, b, c FROM ta_r4 ORDER BY a;
+a	b	c
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+a	b	c
+5	c	2001-12-31 23:59:59
+a	b	c
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/mdev_20502.result b/storage/spider/mysql-test/spider/bugfix/r/mdev_20502.result
new file mode 100644
index 00000000..e5f16b81
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/mdev_20502.result
@@ -0,0 +1,85 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+this test is for MDEV-20502
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+id int(10) unsigned NOT NULL AUTO_INCREMENT,
+val int(10) unsigned DEFAULT NULL,
+PRIMARY KEY(id)
+) ENGINE=Spider COMMENT='table "tbl_a", srv "s_2_1"'
+INSERT INTO tbl_a (val) VALUES (1);
+
+test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT id, 0 AS const, val FROM tbl_a;
+id	const	val
+1	0	1
+SELECT 1+2, id, 0 AS const, val, val+10, (SELECT tbl_a.val+1 FROM tbl_a) AS sq
+FROM tbl_a;
+1+2	id	const	val	val+10	sq
+3	1	0	1	11	2
+INSERT INTO tbl_a (val) VALUES (2), (1);
+SELECT val+10, 0 AS const, val, (SELECT tbl_a.val+1 FROM tbl_a LIMIT 1) AS sq
+FROM tbl_a GROUP BY val;
+val+10	const	val	sq
+11	0	1	2
+12	0	2	2
+SELECT MAX(id) AS m, 0 AS const, val, (SELECT tbl_a.val+1 FROM tbl_a LIMIT 1) AS sq
+FROM tbl_a GROUP BY val;
+m	const	val	sq
+3	0	1	2
+2	0	2	2
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select t0.`id` `id`,t0.`val` `val` from `auto_test_remote`.`tbl_a` t0
+select t0.`id` `id`,t0.`val` `val`,(t0.`val` + 10) `val+10` from `auto_test_remote`.`tbl_a` t0
+select (t0.`val` + 1) `tbl_a.val+1` from `auto_test_remote`.`tbl_a` t0
+select `id`,`val` from `auto_test_remote`.`tbl_a` order by `id` desc limit 1 for update
+select (t0.`val` + 10) `val+10`,t0.`val` `val` from `auto_test_remote`.`tbl_a` t0 group by t0.`val` order by t0.`val`
+select (t0.`val` + 1) `tbl_a.val+1` from `auto_test_remote`.`tbl_a` t0 limit 1
+select max(t0.`id`) `m`,t0.`val` `val` from `auto_test_remote`.`tbl_a` t0 group by t0.`val` order by t0.`val`
+select (t0.`val` + 1) `tbl_a.val+1` from `auto_test_remote`.`tbl_a` t0 limit 1
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT id, val FROM tbl_a ORDER BY id;
+id	val
+1	1
+2	2
+3	1
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/mdev_21884.result b/storage/spider/mysql-test/spider/bugfix/r/mdev_21884.result
new file mode 100644
index 00000000..d5ba9b1e
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/mdev_21884.result
@@ -0,0 +1,104 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_bgs_mode= @@spider_bgs_mode;
+set session spider_bgs_mode= 2;
+set @old_spider_quick_mode= @@spider_quick_mode;
+set session spider_quick_mode= 3;
+
+this test is for MDEV-21884
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a,b)
+) ENGINE=Spider COMMENT='table "ta_r3"'
+  PARTITION BY RANGE(a) (
+PARTITION pt1 VALUES LESS THAN (10) COMMENT='srv "s_2_1", table "ta_r2",
+    priority "1000"',
+PARTITION pt2 VALUES LESS THAN MAXVALUE COMMENT='srv "s_2_1", priority "1000001"'
+  )
+CREATE TABLE tb_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+INSERT INTO tbl_a (a, b, c) VALUES
+(11, 'a', '2008-08-01 10:21:39'),
+(11, 'b', '2000-01-01 00:00:00'),
+(12, 'e', '2007-06-04 20:03:11'),
+(12, 'd', '2003-11-30 05:01:03'),
+(13, 'c', '2001-12-31 23:59:59');
+INSERT INTO tb_l (a, b, c) VALUES
+(11, 'a', '2008-08-01 10:21:39'),
+(12, 'b', '2000-01-01 00:00:00'),
+(13, 'e', '2007-06-04 20:03:11'),
+(14, 'd', '2003-11-30 05:01:03'),
+(15, 'c', '2001-12-31 23:59:59');
+
+test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT STRAIGHT_JOIN b.a, b.b FROM tb_l a, tbl_a b WHERE a.a = b.a;
+a	b
+11	a
+11	b
+12	d
+12	e
+13	c
+connection child2_1;
+SET NAMES utf8;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `a`,`b` from `auto_test_remote`.`ta_r2` order by `a`,`b`
+select `a`,`b` from `auto_test_remote`.`ta_r3` order by `a`,`b`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT a, b, c FROM ta_r2 ORDER BY a ;
+SELECT a, b, c FROM ta_r3 ORDER BY a;
+a	b	c
+a	b	c
+11	a	2008-08-01 10:21:39
+11	b	2000-01-01 00:00:00
+12	d	2003-11-30 05:01:03
+12	e	2007-06-04 20:03:11
+13	c	2001-12-31 23:59:59
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_bgs_mode= @old_spider_bgs_mode;
+set session spider_quick_mode= @old_spider_quick_mode;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/mdev_22246.result b/storage/spider/mysql-test/spider/bugfix/r/mdev_22246.result
new file mode 100644
index 00000000..0254d8bf
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/mdev_22246.result
@@ -0,0 +1,79 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+this test is for MDEV-22246
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+CHILD2_2_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+id bigint NOT NULL,
+node text,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (id,node) VALUES (1,'DB-G0'),(2,'DB-G1');
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT * FROM tbl_a;
+id	node
+2	DB-G1
+1	DB-G0
+SELECT * FROM tbl_a WHERE id <0 || id >0;
+id	node
+1	DB-G0
+2	DB-G1
+connection child2_1;
+SELECT * FROM tbl_a ORDER BY id;
+id	node
+2	DB-G1
+connection child2_2;
+SELECT * FROM tbl_a ORDER BY id;
+id	node
+1	DB-G0
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/mdev_22265.result b/storage/spider/mysql-test/spider/bugfix/r/mdev_22265.result
new file mode 100644
index 00000000..0331943a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/mdev_22265.result
@@ -0,0 +1,23 @@
+for master_1
+for child2
+for child3
+
+this test is for MDEV-22265
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+create table
+connection master_1;
+create table t2345678911234567892123456789312345678941234567895123(id int) ENGINE=SPIDER DEFAULT CHARSET=latin1 COMMENT='host "h114", user "spider", password "spider", port "3306", database "test32738"';
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+for master_1
+for child2
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/mdev_24020.result b/storage/spider/mysql-test/spider/bugfix/r/mdev_24020.result
new file mode 100644
index 00000000..164c68fb
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/mdev_24020.result
@@ -0,0 +1,97 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+this test is for MDEV-24020
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+connection master_1;
+CREATE TABLE tbl_a (
+a INT,
+b VARCHAR(30),
+PRIMARY KEY(a)
+) ENGINE=Spider PARTITION BY LIST(a % 3) (
+PARTITION pt1 VALUES IN (0) COMMENT='srv "s_2_1", table "ta_r2"',
+PARTITION pt2 VALUES IN (1) COMMENT='srv "s_2_1", table "ta_r3"',
+PARTITION pt3 VALUES IN (2) COMMENT='srv "s_2_1", table "ta_r4"'
+  )
+INSERT INTO tbl_a VALUES(10000, "  abcd   ");
+INSERT INTO tbl_a VALUES(10001, "  abcd   ");
+INSERT INTO tbl_a VALUES(10002, "  abcd   ");
+INSERT INTO tbl_a VALUES(10003, "[[[abcd][[");
+INSERT INTO tbl_a VALUES(10004, "[[[abcd][[");
+INSERT INTO tbl_a VALUES(10005, "[[[abcd][[");
+INSERT INTO tbl_a VALUES(10006, "[[[abcd]]");
+INSERT INTO tbl_a VALUES(10007, "[[[abcd]]");
+INSERT INTO tbl_a VALUES(10008, "[[[abcd]]");
+INSERT INTO tbl_a VALUES(10009, "[[[**abcd****]]");
+
+test 1
+connection master_1;
+UPDATE tbl_a SET b = trim(b) WHERE a = 10000;
+SELECT * FROM tbl_a WHERE a = 10000;
+a	b
+10000	abcd
+UPDATE tbl_a SET b = ltrim(b) WHERE a = 10001;
+SELECT * FROM tbl_a WHERE a = 10001;
+a	b
+10001	abcd   
+UPDATE tbl_a SET b = rtrim(b) WHERE a = 10002;
+SELECT * FROM tbl_a WHERE a = 10002;
+a	b
+10002	  abcd
+UPDATE tbl_a SET b = trim(BOTH '[' FROM b) WHERE a = 10003;
+SELECT * FROM tbl_a WHERE a = 10003;
+a	b
+10003	abcd]
+UPDATE tbl_a SET b = trim(LEADING '[' FROM b) WHERE a = 10004;
+SELECT * FROM tbl_a WHERE a = 10004;
+a	b
+10004	abcd][[
+UPDATE tbl_a SET b = trim(TRAILING '[' FROM b) WHERE a = 10005;
+SELECT * FROM tbl_a WHERE a = 10005;
+a	b
+10005	[[[abcd]
+UPDATE tbl_a SET b = trim(LEADING '[' FROM trim(TRAILING ']' FROM b)) WHERE a = 10006;
+SELECT * FROM tbl_a WHERE a = 10006;
+a	b
+10006	abcd
+UPDATE tbl_a SET b = trim(TRAILING '[' FROM trim(LEADING ']' FROM b)) WHERE a = 10007;
+SELECT * FROM tbl_a WHERE a = 10007;
+a	b
+10007	[[[abcd]]
+UPDATE tbl_a SET b = trim(TRAILING ']' FROM trim(LEADING '[' FROM b)) WHERE a = 10008;
+SELECT * FROM tbl_a WHERE a = 10008;
+a	b
+10008	abcd
+UPDATE tbl_a SET b = trim(BOTH '*' FROM trim(TRAILING ']' FROM trim(LEADING '[' FROM b))) WHERE a = 10009;
+SELECT * FROM tbl_a WHERE a = 10009;
+a	b
+10009	abcd
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/mdev_24517.result b/storage/spider/mysql-test/spider/bugfix/r/mdev_24517.result
new file mode 100644
index 00000000..f084c967
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/mdev_24517.result
@@ -0,0 +1,78 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+this test is for MDEV-24517
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+i INT,
+j JSON,
+PRIMARY KEY(i)
+) ENGINE=Spider PARTITION BY RANGE(i) (
+PARTITION pt1 VALUES LESS THAN (5) COMMENT='srv "s_2_1", table "ta_r2"',
+PARTITION pt2 VALUES LESS THAN (10) COMMENT='srv "s_2_1", table "ta_r3"',
+PARTITION pt3 VALUES LESS THAN MAXVALUE COMMENT='srv "s_2_1", table "ta_r4"'
+  )
+INSERT INTO tbl_a (i, j) VALUES
+(1, '{"ID": "3", "Name": "Barney", "Age": 18}'),
+(2, '{"ID": "4", "Name": "Betty", "Age": 19}'),
+(3, '{"ID": "2", "Name": "Wilma", "Age": 20}'),
+(4, '[10, 20, [30, 40]]');
+
+test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT * FROM tbl_a WHERE JSON_EXTRACT(j, '$.Age')=19;
+i	j
+2	{"ID": "4", "Name": "Betty", "Age": 19}
+SELECT * FROM tbl_a WHERE JSON_EXTRACT(j, '$.Name')="Betty";
+i	j
+2	{"ID": "4", "Name": "Betty", "Age": 19}
+SELECT i, JSON_EXTRACT(j, "$.ID")
+FROM tbl_a
+WHERE JSON_EXTRACT(j, "$.ID") > 1 AND i < 4
+ORDER BY JSON_EXTRACT(j, "$.Name");
+i	JSON_EXTRACT(j, "$.ID")
+1	"3"
+2	"4"
+3	"2"
+SELECT * FROM tbl_a WHERE JSON_EXTRACT(j, '$[1]') = 20;
+i	j
+4	[10, 20, [30, 40]]
+SELECT * FROM tbl_a WHERE JSON_EXTRACT(j, '$[2][0]') = 30;
+i	j
+4	[10, 20, [30, 40]]
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/mdev_24760.result b/storage/spider/mysql-test/spider/bugfix/r/mdev_24760.result
new file mode 100644
index 00000000..08481cd1
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/mdev_24760.result
@@ -0,0 +1,49 @@
+#
+# MDEV-24760 SELECT..CASE statement syntax error at Spider Engine table
+#
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection child2_1;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+DROP TABLE IF EXISTS tbl_a;
+Warnings:
+Note	1051	Unknown table 'auto_test_remote.tbl_a'
+CREATE TABLE tbl_a (
+id int NOT NULL AUTO_INCREMENT,
+name varchar(255) DEFAULT NULL,
+PRIMARY KEY (id)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+INSERT INTO tbl_a (name) VALUES ('Alice'), ('Bob');
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+CREATE TABLE tbl_a (
+id int NOT NULL AUTO_INCREMENT,
+name varchar(255) DEFAULT NULL,
+PRIMARY KEY (id)
+) ENGINE=Spider DEFAULT CHARSET=utf8 COMMENT='table "tbl_a"'
+PARTITION BY HASH(id) (
+PARTITION pt1 COMMENT='srv "s_2_1"'
+);
+SELECT id, CASE WHEN name='Alice' THEN "A" WHEN name='Bob' THEN "B" END FROM tbl_a;
+id	CASE WHEN name='Alice' THEN "A" WHEN name='Bob' THEN "B" END
+1	A
+2	B
+SELECT id, CASE name WHEN 'Alice' THEN "A" WHEN 'Bob' THEN "B" END FROM tbl_a;
+id	CASE name WHEN 'Alice' THEN "A" WHEN 'Bob' THEN "B" END
+1	A
+2	B
+DROP DATABASE auto_test_local;
+connection child2_1;
+DROP DATABASE auto_test_remote;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
diff --git a/storage/spider/mysql-test/spider/bugfix/r/mdev_26013.result b/storage/spider/mysql-test/spider/bugfix/r/mdev_26013.result
new file mode 100644
index 00000000..3af1f7df
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/mdev_26013.result
@@ -0,0 +1,42 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+MDEV-26013 distinct not work properly in some cases for spider tables
+
+connection child2_1;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+CREATE TABLE tbl_a (
+`a`int,
+`b`int,
+PRIMARY KEY (`a`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+insert into `tbl_a` VALUES (1,999), (2,999);
+connection master_1;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+CREATE TABLE tbl_a (
+`a`int,
+`b`int,
+PRIMARY KEY (`a`)
+) ENGINE=Spider DEFAULT CHARSET=utf8 COMMENT='table "tbl_a"' PARTITION BY LIST COLUMNS(`a`) (
+PARTITION `pt1` DEFAULT COMMENT = 'srv "s_2_1"'
+);
+connection master_1;
+SELECT distinct b FROM tbl_a WHERE b=999;
+b
+999
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
diff --git a/storage/spider/mysql-test/spider/bugfix/r/quick_mode_0.result b/storage/spider/mysql-test/spider/bugfix/r/quick_mode_0.result
new file mode 100644
index 00000000..6e5a0052
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/quick_mode_0.result
@@ -0,0 +1,504 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_quick_mode= @@spider_quick_mode;
+set session spider_quick_mode= 0;
+set @old_spider_quick_page_size= @@spider_quick_page_size;
+set session spider_quick_page_size= 3;
+set @old_spider_quick_page_byte= @@spider_quick_page_byte;
+
+this test is for MDEV-16520
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+CHILD2_2_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+CREATE TABLE tbl_b (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_2
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_a (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_a (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+INSERT INTO tbl_b (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_b (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_b (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote`.`tbl_a` order by `pkey`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 0
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 1
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 2
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 3
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 4
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 5
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 6
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 7
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 8
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 9
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 10
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 11
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 12
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 13
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 14
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 15
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 16
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 17
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 18
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 19
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 20
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 21
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 22
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 23
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 24
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 25
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 26
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 27
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 28
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 29
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_b ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection master_1;
+set session spider_quick_page_byte= 6;
+
+select test 2
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote`.`tbl_a` order by `pkey`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 0
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 1
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 2
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 3
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 4
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 5
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 6
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 7
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 8
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 9
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 10
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 11
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 12
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 13
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 14
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 15
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 16
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 17
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 18
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 19
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 20
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 21
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 22
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 23
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 24
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 25
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 26
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 27
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 28
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 29
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_b ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection master_1;
+set session spider_quick_page_byte= 0;
+
+select test 3
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote`.`tbl_a` order by `pkey`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 0
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 1
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 2
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 3
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 4
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 5
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 6
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 7
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 8
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 9
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 10
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 11
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 12
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 13
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 14
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 15
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 16
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 17
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 18
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 19
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 20
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 21
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 22
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 23
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 24
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 25
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 26
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 27
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 28
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 29
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_b ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_quick_mode= @old_spider_quick_mode;
+set session spider_quick_page_size= @old_spider_quick_page_size;
+set session spider_quick_page_byte= @old_spider_quick_page_byte;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/quick_mode_1.result b/storage/spider/mysql-test/spider/bugfix/r/quick_mode_1.result
new file mode 100644
index 00000000..bca6d172
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/quick_mode_1.result
@@ -0,0 +1,504 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_quick_mode= @@spider_quick_mode;
+set session spider_quick_mode= 1;
+set @old_spider_quick_page_size= @@spider_quick_page_size;
+set session spider_quick_page_size= 3;
+set @old_spider_quick_page_byte= @@spider_quick_page_byte;
+
+this test is for MDEV-16520
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+CHILD2_2_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+CREATE TABLE tbl_b (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_2
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_a (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_a (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+INSERT INTO tbl_b (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_b (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_b (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote`.`tbl_a` order by `pkey`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 0
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 1
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 2
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 3
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 4
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 5
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 6
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 7
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 8
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 9
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 10
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 11
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 12
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 13
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 14
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 15
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 16
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 17
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 18
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 19
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 20
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 21
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 22
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 23
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 24
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 25
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 26
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 27
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 28
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 29
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_b ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection master_1;
+set session spider_quick_page_byte= 6;
+
+select test 2
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote`.`tbl_a` order by `pkey`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 0
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 1
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 2
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 3
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 4
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 5
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 6
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 7
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 8
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 9
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 10
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 11
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 12
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 13
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 14
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 15
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 16
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 17
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 18
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 19
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 20
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 21
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 22
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 23
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 24
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 25
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 26
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 27
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 28
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 29
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_b ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection master_1;
+set session spider_quick_page_byte= 0;
+
+select test 3
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote`.`tbl_a` order by `pkey`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 0
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 1
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 2
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 3
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 4
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 5
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 6
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 7
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 8
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 9
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 10
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 11
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 12
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 13
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 14
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 15
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 16
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 17
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 18
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 19
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 20
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 21
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 22
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 23
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 24
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 25
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 26
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 27
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 28
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 29
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_b ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_quick_mode= @old_spider_quick_mode;
+set session spider_quick_page_size= @old_spider_quick_page_size;
+set session spider_quick_page_byte= @old_spider_quick_page_byte;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/quick_mode_2.result b/storage/spider/mysql-test/spider/bugfix/r/quick_mode_2.result
new file mode 100644
index 00000000..61a7764d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/quick_mode_2.result
@@ -0,0 +1,504 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_quick_mode= @@spider_quick_mode;
+set session spider_quick_mode= 2;
+set @old_spider_quick_page_size= @@spider_quick_page_size;
+set session spider_quick_page_size= 3;
+set @old_spider_quick_page_byte= @@spider_quick_page_byte;
+
+this test is for MDEV-16520
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+CHILD2_2_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+CREATE TABLE tbl_b (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_2
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_a (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_a (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+INSERT INTO tbl_b (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_b (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_b (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote`.`tbl_a` order by `pkey`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 0
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 1
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 2
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 3
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 4
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 5
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 6
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 7
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 8
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 9
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 10
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 11
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 12
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 13
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 14
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 15
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 16
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 17
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 18
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 19
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 20
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 21
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 22
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 23
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 24
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 25
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 26
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 27
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 28
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 29
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_b ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection master_1;
+set session spider_quick_page_byte= 6;
+
+select test 2
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote`.`tbl_a` order by `pkey`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 0
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 1
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 2
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 3
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 4
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 5
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 6
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 7
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 8
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 9
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 10
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 11
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 12
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 13
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 14
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 15
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 16
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 17
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 18
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 19
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 20
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 21
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 22
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 23
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 24
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 25
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 26
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 27
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 28
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 29
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_b ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection master_1;
+set session spider_quick_page_byte= 0;
+
+select test 3
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote`.`tbl_a` order by `pkey`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 0
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 1
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 2
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 3
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 4
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 5
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 6
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 7
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 8
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 9
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 10
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 11
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 12
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 13
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 14
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 15
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 16
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 17
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 18
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 19
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 20
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 21
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 22
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 23
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 24
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 25
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 26
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 27
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 28
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 29
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_b ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_quick_mode= @old_spider_quick_mode;
+set session spider_quick_page_size= @old_spider_quick_page_size;
+set session spider_quick_page_byte= @old_spider_quick_page_byte;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/quick_mode_3.result b/storage/spider/mysql-test/spider/bugfix/r/quick_mode_3.result
new file mode 100644
index 00000000..38387a45
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/quick_mode_3.result
@@ -0,0 +1,504 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_quick_mode= @@spider_quick_mode;
+set session spider_quick_mode= 3;
+set @old_spider_quick_page_size= @@spider_quick_page_size;
+set session spider_quick_page_size= 3;
+set @old_spider_quick_page_byte= @@spider_quick_page_byte;
+
+this test is for MDEV-16520
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+CHILD2_2_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+CREATE TABLE tbl_b (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_2
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_a (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_a (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+INSERT INTO tbl_b (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_b (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_b (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote`.`tbl_a` order by `pkey`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 0
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 1
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 2
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 3
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 4
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 5
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 6
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 7
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 8
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 9
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 10
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 11
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 12
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 13
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 14
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 15
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 16
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 17
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 18
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 19
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 20
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 21
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 22
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 23
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 24
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 25
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 26
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 27
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 28
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 29
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_b ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection master_1;
+set session spider_quick_page_byte= 6;
+
+select test 2
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote`.`tbl_a` order by `pkey`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 0
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 1
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 2
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 3
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 4
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 5
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 6
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 7
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 8
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 9
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 10
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 11
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 12
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 13
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 14
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 15
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 16
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 17
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 18
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 19
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 20
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 21
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 22
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 23
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 24
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 25
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 26
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 27
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 28
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 29
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_b ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection master_1;
+set session spider_quick_page_byte= 0;
+
+select test 3
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote`.`tbl_a` order by `pkey`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 0
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 1
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 2
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 3
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 4
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 5
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 6
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 7
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 8
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 9
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 10
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 11
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 12
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 13
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 14
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 15
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 16
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 17
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 18
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 19
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 20
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 21
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 22
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 23
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 24
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 25
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 26
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 27
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 28
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 29
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_b ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_quick_mode= @old_spider_quick_mode;
+set session spider_quick_page_size= @old_spider_quick_page_size;
+set session spider_quick_page_byte= @old_spider_quick_page_byte;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/return_found_rows_insert.result b/storage/spider/mysql-test/spider/bugfix/r/return_found_rows_insert.result
new file mode 100644
index 00000000..2ddec02e
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/return_found_rows_insert.result
@@ -0,0 +1,179 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+this test is for MDEV-18973
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+skey int NOT NULL,
+dt date NOT NULL,
+tm time NOT NULL,
+PRIMARY KEY (skey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (skey, dt, tm) VALUES (0, '2012-01-01', '12:00:00'),(1, '2012-02-01', '12:00:00'),(2, '2012-03-01', '12:00:00'),(3, '2012-04-01', '12:00:00'),(4, '2012-05-01', '12:00:00'),(5, '2012-06-01', '12:00:00'),(6, '2012-07-01', '12:00:00'),(7, '2012-08-01', '12:00:00'),(8, '2012-09-01', '12:00:00'),(9, '2012-10-01', '12:00:00');
+FLUSH TABLES;
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+MYSQL -v -v -u root -h localhost -P MASTER_1_MYPORT -S MASTER_1_MYSOCK -e "MASTER_1_SET_COMMAND INSERT IGNORE INTO tbl_a (skey, dt, tm) VALUES (0, '2013-01-01', '13:00:00'),(2, '2013-02-01', '13:00:00'),(4, '2013-03-01', '13:00:00'),(7, '2013-04-01', '13:00:00'),(8, '2013-05-01', '13:00:00'),(10, '2013-06-01', '13:00:00'),(11, '2013-07-01', '13:00:00'),(12, '2013-08-01', '13:00:00'),(13, '2013-09-01', '13:00:00'),(14, '2013-10-01', '13:00:00')" auto_test_local
+--------------
+set session spider_direct_dup_insert=1
+--------------
+
+Query OK, 0 rows affected
+
+--------------
+INSERT IGNORE INTO tbl_a (skey, dt, tm) VALUES (0, '2013-01-01', '13:00:00'),(2, '2013-02-01', '13:00:00'),(4, '2013-03-01', '13:00:00'),(7, '2013-04-01', '13:00:00'),(8, '2013-05-01', '13:00:00'),(10, '2013-06-01', '13:00:00'),(11, '2013-07-01', '13:00:00'),(12, '2013-08-01', '13:00:00'),(13, '2013-09-01', '13:00:00'),(14, '2013-10-01', '13:00:00')
+--------------
+
+Query OK, 5 rows affected
+Records: 10  Duplicates: 5  Warnings: 0
+
+Bye
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %' OR argument LIKE '%replace %';
+argument
+insert ignore into `auto_test_remote`.`tbl_a`(`skey`,`dt`,`tm`)values(0,_latin1'2013-01-01',_latin1'13:00:00'),(2,_latin1'2013-02-01',_latin1'13:00:00'),(4,_latin1'2013-03-01',_latin1'13:00:00'),(7,_latin1'2013-04-01',_latin1'13:00:00'),(8,_latin1'2013-05-01',_latin1'13:00:00'),(10,_latin1'2013-06-01',_latin1'13:00:00'),(11,_latin1'2013-07-01',_latin1'13:00:00'),(12,_latin1'2013-08-01',_latin1'13:00:00'),(13,_latin1'2013-09-01',_latin1'13:00:00'),(14,_latin1'2013-10-01',_latin1'13:00:00')
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %' OR argument LIKE '%replace %'
+SELECT skey, dt, tm FROM tbl_a ORDER BY skey;
+skey	dt	tm
+0	2012-01-01	12:00:00
+1	2012-02-01	12:00:00
+2	2012-03-01	12:00:00
+3	2012-04-01	12:00:00
+4	2012-05-01	12:00:00
+5	2012-06-01	12:00:00
+6	2012-07-01	12:00:00
+7	2012-08-01	12:00:00
+8	2012-09-01	12:00:00
+9	2012-10-01	12:00:00
+10	2013-06-01	13:00:00
+11	2013-07-01	13:00:00
+12	2013-08-01	13:00:00
+13	2013-09-01	13:00:00
+14	2013-10-01	13:00:00
+TRUNCATE TABLE mysql.general_log;
+MYSQL -v -v -u root -h localhost -P MASTER_1_MYPORT -S MASTER_1_MYSOCK -e "MASTER_1_SET_COMMAND REPLACE INTO tbl_a (skey, dt, tm) VALUES (1, '2012-02-01', '12:00:00'),(3, '2012-12-01', '11:00:00'),(8, '2012-11-30', '11:00:00'),(9, '2012-11-29', '11:00:00'),(10, '2012-11-28', '11:00:00'),(15, '2012-11-27', '11:00:00'),(16, '2012-11-26', '11:00:00'),(17, '2012-11-25', '11:00:00'),(18, '2012-11-24', '11:00:00'),(19, '2012-11-23', '11:00:00')" auto_test_local
+--------------
+set session spider_direct_dup_insert=1
+--------------
+
+Query OK, 0 rows affected
+
+--------------
+REPLACE INTO tbl_a (skey, dt, tm) VALUES (1, '2012-02-01', '12:00:00'),(3, '2012-12-01', '11:00:00'),(8, '2012-11-30', '11:00:00'),(9, '2012-11-29', '11:00:00'),(10, '2012-11-28', '11:00:00'),(15, '2012-11-27', '11:00:00'),(16, '2012-11-26', '11:00:00'),(17, '2012-11-25', '11:00:00'),(18, '2012-11-24', '11:00:00'),(19, '2012-11-23', '11:00:00')
+--------------
+
+Query OK, 14 rows affected
+Records: 10  Duplicates: 4  Warnings: 0
+
+Bye
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %' OR argument LIKE '%replace %';
+argument
+replace into `auto_test_remote`.`tbl_a`(`skey`,`dt`,`tm`)values(1,_latin1'2012-02-01',_latin1'12:00:00'),(3,_latin1'2012-12-01',_latin1'11:00:00'),(8,_latin1'2012-11-30',_latin1'11:00:00'),(9,_latin1'2012-11-29',_latin1'11:00:00'),(10,_latin1'2012-11-28',_latin1'11:00:00'),(15,_latin1'2012-11-27',_latin1'11:00:00'),(16,_latin1'2012-11-26',_latin1'11:00:00'),(17,_latin1'2012-11-25',_latin1'11:00:00'),(18,_latin1'2012-11-24',_latin1'11:00:00'),(19,_latin1'2012-11-23',_latin1'11:00:00')
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %' OR argument LIKE '%replace %'
+SELECT skey, dt, tm FROM tbl_a ORDER BY skey;
+skey	dt	tm
+0	2012-01-01	12:00:00
+1	2012-02-01	12:00:00
+2	2012-03-01	12:00:00
+3	2012-12-01	11:00:00
+4	2012-05-01	12:00:00
+5	2012-06-01	12:00:00
+6	2012-07-01	12:00:00
+7	2012-08-01	12:00:00
+8	2012-11-30	11:00:00
+9	2012-11-29	11:00:00
+10	2012-11-28	11:00:00
+11	2013-07-01	13:00:00
+12	2013-08-01	13:00:00
+13	2013-09-01	13:00:00
+14	2013-10-01	13:00:00
+15	2012-11-27	11:00:00
+16	2012-11-26	11:00:00
+17	2012-11-25	11:00:00
+18	2012-11-24	11:00:00
+19	2012-11-23	11:00:00
+TRUNCATE TABLE mysql.general_log;
+MYSQL -v -v -u root -h localhost -P MASTER_1_MYPORT -S MASTER_1_MYSOCK -e "MASTER_1_SET_COMMAND INSERT INTO tbl_a (skey, dt, tm) VALUES (1, '2012-11-01', '11:00:00'),(3, '2012-12-01', '11:00:00'),(11, '2012-11-30', '11:00:00'),(15, '2012-11-29', '11:00:00'),(16, '2012-11-28', '11:00:00'),(20, '2012-11-27', '11:00:00'),(21, '2012-11-26', '11:00:00'),(22, '2012-11-25', '11:00:00'),(23, '2012-11-24', '11:00:00'),(24, '2012-11-23', '11:00:00') ON DUPLICATE KEY UPDATE dt=VALUE(dt), tm=VALUE(tm)" auto_test_local
+--------------
+set session spider_direct_dup_insert=1
+--------------
+
+Query OK, 0 rows affected
+
+--------------
+INSERT INTO tbl_a (skey, dt, tm) VALUES (1, '2012-11-01', '11:00:00'),(3, '2012-12-01', '11:00:00'),(11, '2012-11-30', '11:00:00'),(15, '2012-11-29', '11:00:00'),(16, '2012-11-28', '11:00:00'),(20, '2012-11-27', '11:00:00'),(21, '2012-11-26', '11:00:00'),(22, '2012-11-25', '11:00:00'),(23, '2012-11-24', '11:00:00'),(24, '2012-11-23', '11:00:00') ON DUPLICATE KEY UPDATE dt=VALUE(dt), tm=VALUE(tm)
+--------------
+
+Query OK, 13 rows affected
+Records: 10  Duplicates: 4  Warnings: 0
+
+Bye
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %' OR argument LIKE '%replace %';
+argument
+insert high_priority into `auto_test_remote`.`tbl_a`(`skey`,`dt`,`tm`)values(1,_latin1'2012-11-01',_latin1'11:00:00'),(3,_latin1'2012-12-01',_latin1'11:00:00'),(11,_latin1'2012-11-30',_latin1'11:00:00'),(15,_latin1'2012-11-29',_latin1'11:00:00'),(16,_latin1'2012-11-28',_latin1'11:00:00'),(20,_latin1'2012-11-27',_latin1'11:00:00'),(21,_latin1'2012-11-26',_latin1'11:00:00'),(22,_latin1'2012-11-25',_latin1'11:00:00'),(23,_latin1'2012-11-24',_latin1'11:00:00'),(24,_latin1'2012-11-23',_latin1'11:00:00') on duplicate key update `dt` = values(`dt`),`tm` = values(`tm`)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %' OR argument LIKE '%replace %'
+SELECT skey, dt, tm FROM tbl_a ORDER BY skey;
+skey	dt	tm
+0	2012-01-01	12:00:00
+1	2012-11-01	11:00:00
+2	2012-03-01	12:00:00
+3	2012-12-01	11:00:00
+4	2012-05-01	12:00:00
+5	2012-06-01	12:00:00
+6	2012-07-01	12:00:00
+7	2012-08-01	12:00:00
+8	2012-11-30	11:00:00
+9	2012-11-29	11:00:00
+10	2012-11-28	11:00:00
+11	2012-11-30	11:00:00
+12	2013-08-01	13:00:00
+13	2013-09-01	13:00:00
+14	2013-10-01	13:00:00
+15	2012-11-29	11:00:00
+16	2012-11-28	11:00:00
+17	2012-11-25	11:00:00
+18	2012-11-24	11:00:00
+19	2012-11-23	11:00:00
+20	2012-11-27	11:00:00
+21	2012-11-26	11:00:00
+22	2012-11-25	11:00:00
+23	2012-11-24	11:00:00
+24	2012-11-23	11:00:00
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/return_found_rows_update.result b/storage/spider/mysql-test/spider/bugfix/r/return_found_rows_update.result
new file mode 100644
index 00000000..cd5423ed
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/return_found_rows_update.result
@@ -0,0 +1,99 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+this test is for MDEV-18973
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+skey int NOT NULL,
+dt date NOT NULL,
+tm time NOT NULL,
+KEY idx1 (skey,dt)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (skey, dt, tm) VALUES (0, '2012-01-01', '12:00:00'),(1, '2012-02-01', '12:00:00'),(2, '2012-03-01', '12:00:00'),(3, '2012-04-01', '12:00:00'),(4, '2012-05-01', '12:00:00'),(5, '2012-06-01', '12:00:00'),(6, '2012-07-01', '12:00:00'),(7, '2012-08-01', '12:00:00'),(8, '2012-09-01', '12:00:00'),(9, '2012-10-01', '12:00:00');
+INSERT INTO tbl_a (skey, dt, tm) VALUES (0, '2013-01-01', '13:00:00'),(1, '2013-02-01', '13:00:00'),(2, '2013-03-01', '13:00:00'),(3, '2013-04-01', '13:00:00'),(4, '2013-05-01', '13:00:00'),(5, '2013-06-01', '13:00:00'),(6, '2013-07-01', '13:00:00'),(7, '2013-08-01', '13:00:00'),(8, '2013-09-01', '13:00:00'),(9, '2013-10-01', '13:00:00');
+INSERT INTO tbl_a (skey, dt, tm) VALUES (0, '2012-11-01', '11:00:00'),(1, '2012-12-01', '11:00:00'),(2, '2012-11-30', '11:00:00'),(3, '2012-11-29', '11:00:00'),(4, '2012-11-28', '11:00:00'),(5, '2012-11-27', '11:00:00'),(6, '2012-11-26', '11:00:00'),(7, '2012-11-25', '11:00:00'),(8, '2012-11-24', '11:00:00'),(9, '2012-11-23', '11:00:00');
+FLUSH TABLES;
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+MYSQL -v -v -u root -h localhost -P MASTER_1_MYPORT -S MASTER_1_MYSOCK -e "UPDATE tbl_a SET tm = '12:00:00' WHERE skey = 0" auto_test_local
+--------------
+UPDATE tbl_a SET tm = '12:00:00' WHERE skey = 0
+--------------
+
+Query OK, 2 rows affected
+Rows matched: 3  Changed: 2  Warnings: 0
+
+Bye
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%update %';
+argument
+update `auto_test_remote`.`tbl_a` set `tm` = _latin1'12:00:00' where (`skey` = 0)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%update %'
+SELECT skey, dt, tm FROM tbl_a ORDER BY skey;
+skey	dt	tm
+0	2012-01-01	12:00:00
+0	2013-01-01	12:00:00
+0	2012-11-01	12:00:00
+1	2012-12-01	11:00:00
+1	2013-02-01	13:00:00
+1	2012-02-01	12:00:00
+2	2013-03-01	13:00:00
+2	2012-11-30	11:00:00
+2	2012-03-01	12:00:00
+3	2012-11-29	11:00:00
+3	2013-04-01	13:00:00
+3	2012-04-01	12:00:00
+4	2012-11-28	11:00:00
+4	2012-05-01	12:00:00
+4	2013-05-01	13:00:00
+5	2012-11-27	11:00:00
+5	2012-06-01	12:00:00
+5	2013-06-01	13:00:00
+6	2013-07-01	13:00:00
+6	2012-11-26	11:00:00
+6	2012-07-01	12:00:00
+7	2012-11-25	11:00:00
+7	2012-08-01	12:00:00
+7	2013-08-01	13:00:00
+8	2012-09-01	12:00:00
+8	2013-09-01	13:00:00
+8	2012-11-24	11:00:00
+9	2012-10-01	12:00:00
+9	2013-10-01	13:00:00
+9	2012-11-23	11:00:00
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/same_server_link.result b/storage/spider/mysql-test/spider/bugfix/r/same_server_link.result
new file mode 100644
index 00000000..1f417756
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/same_server_link.result
@@ -0,0 +1,42 @@
+for master_1
+for child2
+for child3
+connection master_1;
+set @old_global_spider_same_server_link= @@global.spider_same_server_link;
+set @old_session_spider_same_server_link= @@session.spider_same_server_link;
+set global spider_same_server_link= 0;
+set session spider_same_server_link= 0;
+
+this test is for MDEV-6268
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+create table
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+CREATE TABLE tbl_b (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+
+select test 1
+connection master_1;
+INSERT INTO tbl_a VALUES(1);
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection master_1;
+set global spider_same_server_link= @old_global_spider_same_server_link;
+set session spider_same_server_link= @old_session_spider_same_server_link;
+for master_1
+for child2
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/select_by_null.result b/storage/spider/mysql-test/spider/bugfix/r/select_by_null.result
new file mode 100644
index 00000000..a7fa1b3b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/select_by_null.result
@@ -0,0 +1,90 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+this test is for MDEV-16279
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_a (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_a (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+FLUSH TABLES;
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT pkey FROM tbl_a WHERE NULL;
+pkey
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/select_with_backquote.result b/storage/spider/mysql-test/spider/bugfix/r/select_with_backquote.result
new file mode 100644
index 00000000..52f8c98b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/select_with_backquote.result
@@ -0,0 +1,75 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+this test is for MDEV-17204
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+txt_utf8 char(8) NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE DEFAULT CHARACTER SET utf8 MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey,txt_utf8) VALUES (0,'01234567'),(1,'12345678'),(2,'23456789'),(3,'34567890'),(4,'45678901'),(5,'56789012'),(6,'67890123'),(7,'78901234'),(8,'89012345'),(9,'90123456');
+FLUSH TABLES;
+
+test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SET NAMES utf8;
+SELECT `pkey`, LEFT(`txt_utf8`, 4) FROM `auto_test_local`.`tbl_a` ORDER BY LEFT(`txt_utf8`, 4) LIMIT 3;
+pkey	LEFT(`txt_utf8`, 4)
+0	0123
+1	1234
+2	2345
+connection child2_1;
+SET NAMES utf8;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select t0.`pkey` `pkey`,(left(t0.`txt_utf8` , 4)) `LEFT(``txt_utf8``, 4)` from `auto_test_remote`.`tbl_a` t0 order by `LEFT(``txt_utf8``, 4)` limit 3
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey, txt_utf8 FROM tbl_a ORDER BY pkey;
+pkey	txt_utf8
+0	01234567
+1	12345678
+2	23456789
+3	34567890
+4	45678901
+5	56789012
+6	67890123
+7	78901234
+8	89012345
+9	90123456
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/self_reference.result b/storage/spider/mysql-test/spider/bugfix/r/self_reference.result
new file mode 100644
index 00000000..1ce9c60a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/self_reference.result
@@ -0,0 +1,36 @@
+for master_1
+for child2
+for child3
+connection master_1;
+set @old_spider_same_server_link= @@spider_same_server_link;
+set spider_same_server_link= ON;
+
+this test is for MDEV-6268
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+create table
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+
+select test 1
+connection master_1;
+SELECT pkey FROM tbl_a;
+ERROR HY000: An infinite loop is detected when opening table auto_test_local.tbl_a
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection master_1;
+set spider_same_server_link= @old_spider_same_server_link;
+for master_1
+for child2
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/slave_transaction_retry_errors_5digit.result b/storage/spider/mysql-test/spider/bugfix/r/slave_transaction_retry_errors_5digit.result
new file mode 100644
index 00000000..f2cab6b0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/slave_transaction_retry_errors_5digit.result
@@ -0,0 +1,22 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+for slave1_1
+
+connection slave1_1;
+SHOW VARIABLES LIKE 'slave_transaction_retry_errors';
+Variable_name	Value
+slave_transaction_retry_errors	1158,1159,1160,1161,1205,1213,1429,2013,12701,10000,20000,30000
+connection slave1_1;
+for slave1_1
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/slave_trx_isolation.result b/storage/spider/mysql-test/spider/bugfix/r/slave_trx_isolation.result
new file mode 100644
index 00000000..d50da8a7
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/slave_trx_isolation.result
@@ -0,0 +1,99 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+for slave1_1
+connection slave1_1;
+set @old_spider_slave_trx_isolation= @@spider_slave_trx_isolation;
+set global spider_slave_trx_isolation= 1;
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection slave1_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+connection slave1_1;
+connection master_1;
+SET SESSION sql_log_bin= 0;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+SET SESSION sql_log_bin= 1;
+connection slave1_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+connection master_1;
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+connection slave1_1;
+connection master_1;
+SET SESSION sql_log_bin= 0;
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%set %';
+argument
+set session time_zone = '+00:00';set @`spider_lc_./auto_test_remote/tbl_a` = '-xxxxxxxxxxxx-xxxxx-./auto_test_local/tbl_a-'
+SET NAMES utf8
+set session transaction isolation level read committed;set session autocommit = 1;set session wait_timeout = 604800;set session sql_mode = 'strict_trans_tables,error_for_division_by_zero,no_auto_create_user,no_engine_substitution';start transaction
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%set %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+connection slave1_1;
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection slave1_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection slave1_1;
+set global spider_slave_trx_isolation= @old_spider_slave_trx_isolation;
+for slave1_1
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/spider_table_sts.result b/storage/spider/mysql-test/spider/bugfix/r/spider_table_sts.result
new file mode 100644
index 00000000..f915cc95
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/spider_table_sts.result
@@ -0,0 +1,38 @@
+for master_1
+for child2
+for child3
+connection master_1;
+alter table mysql.spider_table_sts drop column checksum;
+insert into mysql.spider_table_sts values ('auto_test_local', 'tbl_a', 0, 0, 0, 0, 0, '2019-01-01 00:00:00', '2019-01-01 00:00:00', '2019-01-01 00:00:00');
+
+this test is for MDEV-19842
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+create table
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+
+select test 1
+connection master_1;
+SELECT pkey FROM tbl_a;
+ERROR HY000: System table spider_table_sts is different version
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+ERROR HY000: System table spider_table_sts is different version
+connection master_1;
+alter table mysql.spider_table_sts add column checksum bigint unsigned default null after update_time;
+DROP DATABASE IF EXISTS auto_test_local;
+for master_1
+for child2
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/sql_mode_mariadb.result b/storage/spider/mysql-test/spider/bugfix/r/sql_mode_mariadb.result
new file mode 100644
index 00000000..1bf6fbcc
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/sql_mode_mariadb.result
@@ -0,0 +1,83 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_sql_mode= @@sql_mode;
+set session sql_mode= 'real_as_float,pipes_as_concat,ansi_quotes,ignore_space,ignore_bad_table_options,only_full_group_by,no_unsigned_subtraction,no_dir_in_create,postgresql,oracle,mssql,db2,maxdb,no_key_options,no_table_options,no_field_options,mysql323,mysql40,ansi,no_auto_value_on_zero,no_backslash_escapes,strict_trans_tables,strict_all_tables,no_zero_in_date,no_zero_date,allow_invalid_dates,error_for_division_by_zero,traditional,no_auto_create_user,high_not_precedence,no_engine_substitution,pad_char_to_full_length,empty_string_is_null,simultaneous_assignment,time_round_fractional';
+
+this test is for MDEV-16508
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+
+select test
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT * FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%sql_mode%';
+argument
+set session transaction isolation level repeatable read;set session autocommit = 1;set session sql_log_off = 0;set session wait_timeout = 604800;set session sql_mode = 'real_as_float,ignore_bad_table_options,no_unsigned_subtraction,no_dir_in_create,no_auto_value_on_zero,strict_trans_tables,strict_all_tables,no_zero_in_date,no_zero_date,allow_invalid_dates,error_for_division_by_zero,no_auto_create_user,high_not_precedence,no_engine_substitution,pad_char_to_full_length,empty_string_is_null,simultaneous_assignment,time_round_fractional';set session time_zone = '+00:00';set @`spider_lc_./auto_test_remote/tbl_a` = '-xxxxxxxxxxxx-xxxxx-./auto_test_local/tbl_a-';start transaction
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%sql_mode%'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session sql_mode= @old_sql_mode;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/sql_mode_mysql.result b/storage/spider/mysql-test/spider/bugfix/r/sql_mode_mysql.result
new file mode 100644
index 00000000..3ec96a66
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/sql_mode_mysql.result
@@ -0,0 +1,83 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_sql_mode= @@sql_mode;
+set session sql_mode= 'real_as_float,pipes_as_concat,ansi_quotes,ignore_space,ignore_bad_table_options,only_full_group_by,no_unsigned_subtraction,no_dir_in_create,postgresql,oracle,mssql,db2,maxdb,no_key_options,no_table_options,no_field_options,mysql323,mysql40,ansi,no_auto_value_on_zero,no_backslash_escapes,strict_trans_tables,strict_all_tables,no_zero_in_date,no_zero_date,allow_invalid_dates,error_for_division_by_zero,traditional,no_auto_create_user,high_not_precedence,no_engine_substitution,pad_char_to_full_length,empty_string_is_null,simultaneous_assignment,time_round_fractional';
+
+this test is for MDEV-16508
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+
+select test
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT * FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%sql_mode%';
+argument
+set session transaction isolation level repeatable read;set session autocommit = 1;set session sql_log_off = 0;set session wait_timeout = 604800;set session sql_mode = 'real_as_float,ignore_bad_table_options,no_unsigned_subtraction,no_dir_in_create,no_auto_value_on_zero,strict_trans_tables,strict_all_tables,no_zero_in_date,no_zero_date,allow_invalid_dates,error_for_division_by_zero,no_auto_create_user,high_not_precedence,no_engine_substitution,pad_char_to_full_length';set session time_zone = '+00:00';set @`spider_lc_./auto_test_remote/tbl_a` = '-xxxxxxxxxxxx-xxxxx-./auto_test_local/tbl_a-';start transaction
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%sql_mode%'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session sql_mode= @old_sql_mode;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/strict_group_by.result b/storage/spider/mysql-test/spider/bugfix/r/strict_group_by.result
new file mode 100644
index 00000000..f2287dea
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/strict_group_by.result
@@ -0,0 +1,124 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_sync_sql_mode= @@spider_sync_sql_mode;
+set session spider_sync_sql_mode= FALSE;
+connection child2_1;
+set @old_sql_mode= @@sql_mode;
+set global sql_mode= 'ONLY_FULL_GROUP_BY';
+
+this test is for MDEV-18988
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+CHILD2_2_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+skey int NOT NULL,
+PRIMARY KEY (pkey),
+KEY idx1 (skey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey,skey) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+INSERT INTO tbl_a (pkey,skey) VALUES (10,10),(11,11),(12,12),(13,13),(14,14),(15,15),(16,16),(17,17),(18,18),(19,19);
+INSERT INTO tbl_a (pkey,skey) VALUES (20,5),(21,6),(22,7),(23,8),(24,9),(25,10),(26,11),(27,12),(28,13),(29,14);
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+FLUSH TABLES;
+SELECT count(pkey) cnt, skey FROM tbl_a;
+cnt	skey
+30	1
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select count(`pkey`),min(`pkey`),min(`skey`) from `auto_test_remote`.`tbl_a`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey, skey FROM tbl_a ORDER BY pkey;
+pkey	skey
+1	1
+3	3
+5	5
+7	7
+9	9
+11	11
+13	13
+15	15
+17	17
+19	19
+21	6
+23	8
+25	10
+27	12
+29	14
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select count(`pkey`),min(`pkey`),min(`skey`) from `auto_test_remote2`.`tbl_a`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey, skey FROM tbl_a ORDER BY pkey;
+pkey	skey
+0	0
+2	2
+4	4
+6	6
+8	8
+10	10
+12	12
+14	14
+16	16
+18	18
+20	5
+22	7
+24	9
+26	11
+28	13
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+connection child2_1;
+set global sql_mode= @old_sql_mode;
+connection master_1;
+set session spider_sync_sql_mode= @old_spider_sync_sql_mode;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/wait_timeout.result b/storage/spider/mysql-test/spider/bugfix/r/wait_timeout.result
new file mode 100644
index 00000000..ec9534f7
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/wait_timeout.result
@@ -0,0 +1,130 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection child2_1;
+set @old_wait_timeout= @@wait_timeout;
+set global wait_timeout= 1;
+connection child2_2;
+set @old_wait_timeout= @@wait_timeout;
+set global wait_timeout= 1;
+
+this test is for MDEV-16530
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_1_2;
+USE auto_test_remote;
+connection child2_2;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+connection child2_2_2;
+USE auto_test_remote2;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+CHILD2_2_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_a (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_a (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+LOCK TABLE tbl_a READ;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+INSERT INTO tbl_a SELECT pkey + 30 FROM tbl_a ORDER BY pkey;
+connection child2_1_2;
+SELECT SLEEP(2);
+SLEEP(2)
+0
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+argument
+insert into `auto_test_remote`.`tbl_a`(`pkey`)values(31),(33),(35),(37),(39),(41),(43),(45),(47),(49),(51),(53),(55),(57),(59)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %'
+connection child2_2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+argument
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %'
+connection child2_1;
+UNLOCK TABLES;
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+1
+3
+5
+7
+9
+11
+13
+15
+17
+19
+21
+23
+25
+27
+29
+connection child2_2;
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+2
+4
+6
+8
+10
+12
+14
+16
+18
+20
+22
+24
+26
+28
+connection master_1;
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+connection child2_1;
+set global wait_timeout= @old_wait_timeout;
+connection child2_2;
+set global wait_timeout= @old_wait_timeout;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/wrapper_mariadb.result b/storage/spider/mysql-test/spider/bugfix/r/wrapper_mariadb.result
new file mode 100644
index 00000000..7c01421f
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/wrapper_mariadb.result
@@ -0,0 +1,78 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+this test is for MDEV-18313
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+
+select test
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT * FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select t0.`pkey` `pkey` from `auto_test_remote`.`tbl_a` t0 order by `pkey`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/r/xa_cmd.result b/storage/spider/mysql-test/spider/bugfix/r/xa_cmd.result
new file mode 100644
index 00000000..846dc6c7
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/r/xa_cmd.result
@@ -0,0 +1,68 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+this test is for MDEV-19794
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+XA START 'test';
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+XA END 'test';
+XA PREPARE 'test';
+XA COMMIT 'test';
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+argument
+insert into `auto_test_remote`.`tbl_a`(`pkey`)values(0),(1),(2),(3),(4),(5),(6),(7),(8),(9)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/suite.opt b/storage/spider/mysql-test/spider/bugfix/suite.opt
new file mode 100644
index 00000000..672a3b37
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/suite.opt
@@ -0,0 +1 @@
+--loose-innodb --loose-skip-performance-schema
diff --git a/storage/spider/mysql-test/spider/bugfix/suite.pm b/storage/spider/mysql-test/spider/bugfix/suite.pm
new file mode 100644
index 00000000..171fa6c4
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/suite.pm
@@ -0,0 +1,11 @@
+package My::Suite::Spider;
+
+@ISA = qw(My::Suite);
+
+return "No Spider engine" unless $ENV{HA_SPIDER_SO};
+return "Not run for embedded server" if $::opt_embedded_server;
+
+sub is_default { 1 }
+
+bless { };
+
diff --git a/storage/spider/mysql-test/spider/bugfix/t/checksum_table_with_quick_mode_3.cnf b/storage/spider/mysql-test/spider/bugfix/t/checksum_table_with_quick_mode_3.cnf
new file mode 100644
index 00000000..05dfd8a0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/checksum_table_with_quick_mode_3.cnf
@@ -0,0 +1,3 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/checksum_table_with_quick_mode_3.test b/storage/spider/mysql-test/spider/bugfix/t/checksum_table_with_quick_mode_3.test
new file mode 100644
index 00000000..5dc4a88c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/checksum_table_with_quick_mode_3.test
@@ -0,0 +1,72 @@
+--source ../include/checksum_table_with_quick_mode_3_init.inc
+--echo
+--echo this test is for MDEV-16279
+--echo
+--echo drop and create databases
+
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection child2_1
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+--enable_warnings
+
+--echo
+--echo create table and insert
+
+--connection child2_1
+--disable_query_log
+echo CHILD2_1_CREATE_TABLES;
+eval $CHILD2_1_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_a (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_a (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+FLUSH TABLES;
+
+--echo
+--echo select test 1
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+CHECKSUM TABLE tbl_a EXTENDED;
+
+--connection child2_1
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+
+--echo
+--echo deinit
+--disable_warnings
+
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection child2_1
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+
+--enable_warnings
+--source ../include/checksum_table_with_quick_mode_3_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/cp932_column.cnf b/storage/spider/mysql-test/spider/bugfix/t/cp932_column.cnf
new file mode 100644
index 00000000..05dfd8a0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/cp932_column.cnf
@@ -0,0 +1,3 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/cp932_column.test b/storage/spider/mysql-test/spider/bugfix/t/cp932_column.test
new file mode 100644
index 00000000..8bd0d40c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/cp932_column.test
@@ -0,0 +1,80 @@
+--source ../include/cp932_column_init.inc
+--echo
+--echo this test is for MDEV-18992
+--echo
+--echo drop and create databases
+
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection child2_1
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+--enable_warnings
+
+--echo
+--echo create table and insert
+
+--connection child2_1
+--disable_query_log
+echo CHILD2_1_CREATE_TABLES;
+eval $CHILD2_1_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    txt_utf8 char(8) NOT NULL,
+    txt_cp932 char(8) NOT NULL COLLATE cp932_japanese_ci,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE DEFAULT CHARACTER SET utf8 MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    txt_utf8 char(8) NOT NULL,
+    txt_cp932 char(8) NOT NULL COLLATE cp932_japanese_ci,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE DEFAULT CHARACTER SET utf8 $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO tbl_a (pkey,txt_utf8,txt_cp932) VALUES (0,'',''),(1,'',''),(2,'',''),(3,'',''),(4,'',''),(5,'',''),(6,'',''),(7,'',''),(8,'',''),(9,'','');
+FLUSH TABLES;
+
+--echo
+--echo test 1
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+SET NAMES cp932;
+INSERT INTO tbl_a (pkey,txt_utf8,txt_cp932) VALUES (10,'','’†�‘');
+INSERT INTO tbl_a (pkey,txt_utf8,txt_cp932) VALUES (0,'','') ON DUPLICATE KEY UPDATE txt_cp932 = '’†�‘';
+UPDATE tbl_a SET txt_cp932 = '’†�‘' WHERE pkey = 2;
+SET NAMES utf8;
+
+--connection child2_1
+SET NAMES cp932;
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+SET NAMES utf8;
+
+--echo
+--echo deinit
+--disable_warnings
+
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection child2_1
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+
+--enable_warnings
+--source ../include/cp932_column_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/delete_with_float_column.inc b/storage/spider/mysql-test/spider/bugfix/t/delete_with_float_column.inc
new file mode 100644
index 00000000..34980882
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/delete_with_float_column.inc
@@ -0,0 +1,100 @@
+--echo
+--echo drop and create databases
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection slave1_1
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection child2_1
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+--enable_warnings
+
+--echo
+--echo create table and insert
+
+--connection child2_1
+--disable_query_log
+--disable_ps_protocol
+echo CHILD2_1_CREATE_TABLES;
+eval $CHILD2_1_CREATE_TABLES;
+--enable_ps_protocol
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+save_master_pos;
+
+--connection slave1_1
+sync_with_master;
+
+--connection master_1
+SET SESSION sql_log_bin= 0;
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    f float DEFAULT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    f float DEFAULT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+SET SESSION sql_log_bin= 1;
+
+--connection slave1_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    f float DEFAULT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    f float DEFAULT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+
+--connection master_1
+INSERT INTO tbl_a (pkey, f) VALUES (0,NULL);
+INSERT INTO tbl_a (pkey, f) VALUES (1,0.671437);
+DELETE FROM tbl_a WHERE pkey = 0;
+DELETE FROM tbl_a WHERE pkey = 1;
+save_master_pos;
+
+--connection slave1_1
+sync_with_master;
+
+--connection master_1
+SET SESSION sql_log_bin= 0;
+
+--connection child2_1
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+
+--connection slave1_1
+SELECT pkey, f FROM tbl_a ORDER BY pkey;
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection slave1_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection child2_1
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/t/delete_with_float_column_mariadb.cnf b/storage/spider/mysql-test/spider/bugfix/t/delete_with_float_column_mariadb.cnf
new file mode 100644
index 00000000..45019d6c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/delete_with_float_column_mariadb.cnf
@@ -0,0 +1,4 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
+!include ../my_4_1.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/delete_with_float_column_mariadb.test b/storage/spider/mysql-test/spider/bugfix/t/delete_with_float_column_mariadb.test
new file mode 100644
index 00000000..ce1a09d6
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/delete_with_float_column_mariadb.test
@@ -0,0 +1,5 @@
+--source ../include/delete_with_float_column_mariadb_init.inc
+--source delete_with_float_column.inc
+--source ../include/delete_with_float_column_mariadb_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/delete_with_float_column_mysql.cnf b/storage/spider/mysql-test/spider/bugfix/t/delete_with_float_column_mysql.cnf
new file mode 100644
index 00000000..45019d6c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/delete_with_float_column_mysql.cnf
@@ -0,0 +1,4 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
+!include ../my_4_1.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/delete_with_float_column_mysql.test b/storage/spider/mysql-test/spider/bugfix/t/delete_with_float_column_mysql.test
new file mode 100644
index 00000000..c687f947
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/delete_with_float_column_mysql.test
@@ -0,0 +1,5 @@
+--source ../include/delete_with_float_column_mysql_init.inc
+--source delete_with_float_column.inc
+--source ../include/delete_with_float_column_mysql_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/direct_sql_with_comma_pwd.cnf b/storage/spider/mysql-test/spider/bugfix/t/direct_sql_with_comma_pwd.cnf
new file mode 100644
index 00000000..05dfd8a0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/direct_sql_with_comma_pwd.cnf
@@ -0,0 +1,3 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/direct_sql_with_comma_pwd.test b/storage/spider/mysql-test/spider/bugfix/t/direct_sql_with_comma_pwd.test
new file mode 100644
index 00000000..0b7d5119
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/direct_sql_with_comma_pwd.test
@@ -0,0 +1,35 @@
+--source ../include/direct_sql_with_comma_pwd_init.inc
+--echo
+--echo drop and create databases
+
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+--enable_warnings
+
+--disable_query_log
+echo CREATE TEMPORARY TABLE tmp_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE2;
+eval CREATE TEMPORARY TABLE tmp_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE2;
+--enable_query_log
+
+eval $DIRECT_SQL_COMMAND;
+SELECT pkey FROM tmp_a;
+
+--echo
+--echo deinit
+--disable_warnings
+
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--enable_warnings
+--source ../include/direct_sql_with_comma_pwd_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/direct_sql_with_tmp_table.cnf b/storage/spider/mysql-test/spider/bugfix/t/direct_sql_with_tmp_table.cnf
new file mode 100644
index 00000000..05dfd8a0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/direct_sql_with_tmp_table.cnf
@@ -0,0 +1,3 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/direct_sql_with_tmp_table.test b/storage/spider/mysql-test/spider/bugfix/t/direct_sql_with_tmp_table.test
new file mode 100644
index 00000000..139af5c8
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/direct_sql_with_tmp_table.test
@@ -0,0 +1,35 @@
+--source ../include/direct_sql_with_tmp_table_init.inc
+--echo
+--echo drop and create databases
+
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+--enable_warnings
+
+--disable_query_log
+echo CREATE TEMPORARY TABLE tmp_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE2;
+eval CREATE TEMPORARY TABLE tmp_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE2;
+--enable_query_log
+
+eval $DIRECT_SQL_COMMAND;
+SELECT pkey FROM tmp_a;
+
+--echo
+--echo deinit
+--disable_warnings
+
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--enable_warnings
+--source ../include/direct_sql_with_tmp_table_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/group_by_order_by_limit.cnf b/storage/spider/mysql-test/spider/bugfix/t/group_by_order_by_limit.cnf
new file mode 100644
index 00000000..e0ffb99c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/group_by_order_by_limit.cnf
@@ -0,0 +1,4 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
+!include ../my_2_2.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/group_by_order_by_limit.test b/storage/spider/mysql-test/spider/bugfix/t/group_by_order_by_limit.test
new file mode 100644
index 00000000..f1de6d5d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/group_by_order_by_limit.test
@@ -0,0 +1,97 @@
+--source ../include/group_by_order_by_limit_init.inc
+--echo
+--echo this test is for MDEV-16520
+--echo
+--echo drop and create databases
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection child2_1
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+--connection child2_2
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+--enable_warnings
+
+--echo
+--echo create table and insert
+
+--connection child2_1
+--disable_query_log
+echo CHILD2_1_CREATE_TABLES;
+eval $CHILD2_1_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection child2_2
+--disable_query_log
+echo CHILD2_2_CREATE_TABLES;
+eval $CHILD2_2_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    skey int NOT NULL,
+    PRIMARY KEY (pkey),
+    KEY idx1 (skey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    skey int NOT NULL,
+    PRIMARY KEY (pkey),
+    KEY idx1 (skey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO tbl_a (pkey,skey) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+INSERT INTO tbl_a (pkey,skey) VALUES (10,10),(11,11),(12,12),(13,13),(14,14),(15,15),(16,16),(17,17),(18,18),(19,19);
+INSERT INTO tbl_a (pkey,skey) VALUES (20,5),(21,6),(22,7),(23,8),(24,9),(25,10),(26,11),(27,12),(28,13),(29,14);
+
+--echo
+--echo select test 1
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--connection child2_2
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+SELECT skey, count(*) cnt FROM tbl_a GROUP BY skey ORDER BY cnt DESC, skey DESC LIMIT 5;
+
+--connection child2_1
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+
+--connection child2_2
+eval $CHILD2_2_SELECT_ARGUMENT1;
+eval $CHILD2_2_SELECT_TABLES;
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection child2_1
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+
+--connection child2_2
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+
+--enable_warnings
+--source ../include/group_by_order_by_limit_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/insert_select.cnf b/storage/spider/mysql-test/spider/bugfix/t/insert_select.cnf
new file mode 100644
index 00000000..05dfd8a0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/insert_select.cnf
@@ -0,0 +1,3 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/insert_select.test b/storage/spider/mysql-test/spider/bugfix/t/insert_select.test
new file mode 100644
index 00000000..381e72f7
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/insert_select.test
@@ -0,0 +1,99 @@
+--source ../include/insert_select_init.inc
+--echo
+--echo this test is for MDEV-16399
+--echo
+--echo drop and create databases
+
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection child2_1
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+--enable_warnings
+
+--echo
+--echo create table and insert
+
+--connection child2_1
+--disable_query_log
+echo CHILD2_1_CREATE_TABLES;
+eval $CHILD2_1_CREATE_TABLES;
+echo CHILD2_1_CREATE_TABLES2;
+eval $CHILD2_1_CREATE_TABLES2;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    skey int NOT NULL,
+    dt date NOT NULL,
+    tm time NOT NULL,
+    KEY idx1 (skey,dt,tm)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    skey int NOT NULL,
+    dt date NOT NULL,
+    tm time NOT NULL,
+    KEY idx1 (skey,dt,tm)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+echo CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    dt datetime NOT NULL,
+    PRIMARY KEY (pkey),
+    KEY idx1 (dt)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1_2;
+eval CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    dt datetime NOT NULL,
+    PRIMARY KEY (pkey),
+    KEY idx1 (dt)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1_2;
+--enable_query_log
+INSERT INTO tbl_a (skey, dt, tm) VALUES (0, '2012-01-01', '12:00:00'),(1, '2012-02-01', '12:00:00'),(2, '2012-03-01', '12:00:00'),(3, '2012-04-01', '12:00:00'),(4, '2012-05-01', '12:00:00'),(5, '2012-06-01', '12:00:00'),(6, '2012-07-01', '12:00:00'),(7, '2012-08-01', '12:00:00'),(8, '2012-09-01', '12:00:00'),(9, '2012-10-01', '12:00:00');
+INSERT INTO tbl_a (skey, dt, tm) VALUES (0, '2013-01-01', '13:00:00'),(1, '2013-02-01', '13:00:00'),(2, '2013-03-01', '13:00:00'),(3, '2013-04-01', '13:00:00'),(4, '2013-05-01', '13:00:00'),(5, '2013-06-01', '13:00:00'),(6, '2013-07-01', '13:00:00'),(7, '2013-08-01', '13:00:00'),(8, '2013-09-01', '13:00:00'),(9, '2013-10-01', '13:00:00');
+INSERT INTO tbl_a (skey, dt, tm) VALUES (0, '2012-11-01', '11:00:00'),(1, '2012-12-01', '11:00:00'),(2, '2012-11-30', '11:00:00'),(3, '2012-11-29', '11:00:00'),(4, '2012-11-28', '11:00:00'),(5, '2012-11-27', '11:00:00'),(6, '2012-11-26', '11:00:00'),(7, '2012-11-25', '11:00:00'),(8, '2012-11-24', '11:00:00'),(9, '2012-11-23', '11:00:00');
+FLUSH TABLES;
+
+--echo
+--echo select test 1
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+INSERT IGNORE INTO tbl_b (SELECT skey, CAST(CONCAT(dt, ' ', tm) AS datetime) FROM tbl_a WHERE skey = 4 AND dt > DATE_ADD('2012-12-01', INTERVAL -10 DAY));
+INSERT IGNORE INTO tbl_b (SELECT skey, CAST(CONCAT(dt, ' ', tm) AS datetime) FROM tbl_a WHERE skey = 3 AND dt > DATE_ADD('2012-12-01', INTERVAL -10 DAY));
+INSERT IGNORE INTO tbl_b (SELECT skey, CAST(CONCAT(dt, ' ', tm) AS datetime) FROM tbl_a WHERE skey = 2 AND dt > DATE_ADD('2012-12-01', INTERVAL -10 DAY));
+INSERT IGNORE INTO tbl_b (SELECT skey, CAST(CONCAT(dt, ' ', tm) AS datetime) FROM tbl_a WHERE skey = 1 AND dt > DATE_ADD('2012-12-01', INTERVAL -10 DAY));
+INSERT IGNORE INTO tbl_b (SELECT skey, CAST(CONCAT(dt, ' ', tm) AS datetime) FROM tbl_a WHERE skey = 0 AND dt > DATE_ADD('2012-12-01', INTERVAL -10 DAY));
+INSERT IGNORE INTO tbl_b (SELECT skey, CAST(CONCAT(dt, ' ', tm) AS datetime) FROM tbl_a WHERE skey = 9 AND dt > DATE_ADD('2012-12-01', INTERVAL -10 DAY));
+INSERT IGNORE INTO tbl_b (SELECT skey, CAST(CONCAT(dt, ' ', tm) AS datetime) FROM tbl_a WHERE skey = 8 AND dt > DATE_ADD('2012-12-01', INTERVAL -10 DAY));
+INSERT IGNORE INTO tbl_b (SELECT skey, CAST(CONCAT(dt, ' ', tm) AS datetime) FROM tbl_a WHERE skey = 7 AND dt > DATE_ADD('2012-12-01', INTERVAL -10 DAY));
+INSERT IGNORE INTO tbl_b (SELECT skey, CAST(CONCAT(dt, ' ', tm) AS datetime) FROM tbl_a WHERE skey = 6 AND dt > DATE_ADD('2012-12-01', INTERVAL -10 DAY));
+INSERT IGNORE INTO tbl_b (SELECT skey, CAST(CONCAT(dt, ' ', tm) AS datetime) FROM tbl_a WHERE skey = 5 AND dt > DATE_ADD('2012-12-01', INTERVAL -10 DAY));
+
+--connection child2_1
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+
+--echo
+--echo deinit
+--disable_warnings
+
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection child2_1
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+
+--enable_warnings
+--source ../include/insert_select_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/mdev_19866.cnf b/storage/spider/mysql-test/spider/bugfix/t/mdev_19866.cnf
new file mode 100644
index 00000000..e0ffb99c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/mdev_19866.cnf
@@ -0,0 +1,4 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
+!include ../my_2_2.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/mdev_19866.test b/storage/spider/mysql-test/spider/bugfix/t/mdev_19866.test
new file mode 100644
index 00000000..05b753ae
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/mdev_19866.test
@@ -0,0 +1,97 @@
+--source ../include/mdev_19866_init.inc
+--echo
+--echo this test is for MDEV-19866
+--echo
+--echo drop and create databases
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection child2_1
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+--connection child2_2
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+--enable_warnings
+
+--echo
+--echo create table and insert
+
+--connection child2_1
+--disable_query_log
+echo CHILD2_1_CREATE_TABLES;
+eval $CHILD2_1_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection child2_2
+--disable_query_log
+echo CHILD2_2_CREATE_TABLES;
+eval $CHILD2_2_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    val char(1) NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    val char(1) NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO tbl_a (pkey,val) VALUES (1,'1'),(2,'2'),(3,'3'),(4,'4');
+
+--echo
+--echo select test 1
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--connection child2_2
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+SELECT * FROM tbl_a;
+SELECT * FROM tbl_a WHERE pkey = 1;
+SELECT * FROM tbl_a;
+SELECT * FROM tbl_a WHERE pkey = 2;
+SELECT * FROM tbl_a;
+
+--connection child2_1
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+
+--connection child2_2
+eval $CHILD2_2_SELECT_ARGUMENT1;
+eval $CHILD2_2_SELECT_TABLES;
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection child2_1
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+
+--connection child2_2
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+
+--enable_warnings
+--source ../include/mdev_19866_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/mdev_20100.cnf b/storage/spider/mysql-test/spider/bugfix/t/mdev_20100.cnf
new file mode 100644
index 00000000..05dfd8a0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/mdev_20100.cnf
@@ -0,0 +1,3 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/mdev_20100.test b/storage/spider/mysql-test/spider/bugfix/t/mdev_20100.test
new file mode 100644
index 00000000..3f522b4f
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/mdev_20100.test
@@ -0,0 +1,89 @@
+--source ../include/mdev_20100_init.inc
+--echo
+--echo this test is for MDEV-20100
+--echo
+--echo drop and create databases
+
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection child2_1
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+--enable_warnings
+
+--echo
+--echo create table and insert
+
+--connection child2_1
+--disable_query_log
+echo CHILD2_1_CREATE_TABLES;
+--disable_ps_protocol
+eval $CHILD2_1_CREATE_TABLES;
+--enable_ps_protocol
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_COMMENT_P_2_1;
+eval CREATE TABLE tbl_a (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_COMMENT_P_2_1;
+--enable_query_log
+INSERT INTO tbl_a (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+
+--echo
+--echo test 1
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+SELECT a, b, c FROM tbl_a PARTITION (pt2) WHERE b = 'c';
+SELECT a, b, c FROM tbl_a PARTITION (pt1,pt2);
+SELECT a, b, c FROM tbl_a PARTITION (pt3) WHERE b = 'c';
+SELECT a, b, c FROM tbl_a PARTITION (pt1,pt2);
+SELECT a, b, c FROM tbl_a PARTITION (pt1) WHERE b = 'c';
+SELECT a, b, c FROM tbl_a PARTITION (pt1,pt3);
+SELECT a, b, c FROM tbl_a PARTITION (pt1) WHERE b = 'c';
+SELECT a, b, c FROM tbl_a PARTITION (pt2,pt3);
+
+--connection child2_1
+eval $CHILD2_1_SELECT_ARGUMENT1;
+--disable_ps_protocol
+eval $CHILD2_1_SELECT_TABLES;
+--enable_ps_protocol
+
+--echo
+--echo deinit
+--disable_warnings
+
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection child2_1
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+
+--enable_warnings
+--source ../include/mdev_20100_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/mdev_20502.cnf b/storage/spider/mysql-test/spider/bugfix/t/mdev_20502.cnf
new file mode 100644
index 00000000..05dfd8a0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/mdev_20502.cnf
@@ -0,0 +1,3 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/mdev_20502.test b/storage/spider/mysql-test/spider/bugfix/t/mdev_20502.test
new file mode 100644
index 00000000..2d6ff5b4
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/mdev_20502.test
@@ -0,0 +1,78 @@
+--source ../include/mdev_20502_init.inc
+--echo
+--echo this test is for MDEV-20502
+--echo
+--echo drop and create databases
+
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection child2_1
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+--enable_warnings
+
+--echo
+--echo create table and insert
+
+--connection child2_1
+--disable_query_log
+echo CHILD2_1_CREATE_TABLES;
+eval $CHILD2_1_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+  id int(10) unsigned NOT NULL AUTO_INCREMENT,
+  val int(10) unsigned DEFAULT NULL,
+  PRIMARY KEY(id)
+) $MASTER_1_ENGINE $MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+  id int(10) unsigned NOT NULL AUTO_INCREMENT,
+  val int(10) unsigned DEFAULT NULL,
+  PRIMARY KEY(id)
+) $MASTER_1_ENGINE $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO tbl_a (val) VALUES (1);
+
+--echo
+--echo test 1
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+SELECT id, 0 AS const, val FROM tbl_a;
+SELECT 1+2, id, 0 AS const, val, val+10, (SELECT tbl_a.val+1 FROM tbl_a) AS sq
+FROM tbl_a;
+INSERT INTO tbl_a (val) VALUES (2), (1);
+SELECT val+10, 0 AS const, val, (SELECT tbl_a.val+1 FROM tbl_a LIMIT 1) AS sq
+FROM tbl_a GROUP BY val;
+SELECT MAX(id) AS m, 0 AS const, val, (SELECT tbl_a.val+1 FROM tbl_a LIMIT 1) AS sq
+FROM tbl_a GROUP BY val;
+
+--connection child2_1
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+
+--echo
+--echo deinit
+--disable_warnings
+
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection child2_1
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+
+--enable_warnings
+--source ../include/mdev_20502_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/mdev_21884.cnf b/storage/spider/mysql-test/spider/bugfix/t/mdev_21884.cnf
new file mode 100644
index 00000000..05dfd8a0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/mdev_21884.cnf
@@ -0,0 +1,3 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/mdev_21884.test b/storage/spider/mysql-test/spider/bugfix/t/mdev_21884.test
new file mode 100644
index 00000000..16836cfc
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/mdev_21884.test
@@ -0,0 +1,101 @@
+--source ../include/mdev_21884_init.inc
+--echo
+--echo this test is for MDEV-21884
+--echo
+--echo drop and create databases
+
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection child2_1
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+--enable_warnings
+
+--echo
+--echo create table and insert
+
+--connection child2_1
+--disable_query_log
+echo CHILD2_1_CREATE_TABLES;
+--disable_ps_protocol
+eval $CHILD2_1_CREATE_TABLES;
+--enable_ps_protocol
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a,b)
+) $MASTER_1_ENGINE $MASTER_1_COMMENT_P_2_1;
+eval CREATE TABLE tbl_a (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a,b)
+) $MASTER_1_ENGINE $MASTER_1_COMMENT_P_2_1;
+echo CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+eval CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+--enable_query_log
+INSERT INTO tbl_a (a, b, c) VALUES
+  (11, 'a', '2008-08-01 10:21:39'),
+  (11, 'b', '2000-01-01 00:00:00'),
+  (12, 'e', '2007-06-04 20:03:11'),
+  (12, 'd', '2003-11-30 05:01:03'),
+  (13, 'c', '2001-12-31 23:59:59');
+INSERT INTO tb_l (a, b, c) VALUES
+  (11, 'a', '2008-08-01 10:21:39'),
+  (12, 'b', '2000-01-01 00:00:00'),
+  (13, 'e', '2007-06-04 20:03:11'),
+  (14, 'd', '2003-11-30 05:01:03'),
+  (15, 'c', '2001-12-31 23:59:59');
+
+--echo
+--echo test 1
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+SELECT STRAIGHT_JOIN b.a, b.b FROM tb_l a, tbl_a b WHERE a.a = b.a;
+
+--connection child2_1
+SET NAMES utf8;
+eval $CHILD2_1_SELECT_ARGUMENT1;
+--disable_ps_protocol
+eval $CHILD2_1_SELECT_TABLES;
+--enable_ps_protocol
+
+--echo
+--echo deinit
+--disable_warnings
+
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection child2_1
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+
+--enable_warnings
+--source ../include/mdev_21884_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/mdev_22246.cnf b/storage/spider/mysql-test/spider/bugfix/t/mdev_22246.cnf
new file mode 100644
index 00000000..e0ffb99c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/mdev_22246.cnf
@@ -0,0 +1,4 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
+!include ../my_2_2.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/mdev_22246.test b/storage/spider/mysql-test/spider/bugfix/t/mdev_22246.test
new file mode 100644
index 00000000..9e58bc1a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/mdev_22246.test
@@ -0,0 +1,92 @@
+--source ../include/mdev_22246_init.inc
+--echo
+--echo this test is for MDEV-22246
+--echo
+--echo drop and create databases
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection child2_1
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+--connection child2_2
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+--enable_warnings
+
+--echo
+--echo create table and insert
+
+--connection child2_1
+--disable_query_log
+echo CHILD2_1_CREATE_TABLES;
+eval $CHILD2_1_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection child2_2
+--disable_query_log
+echo CHILD2_2_CREATE_TABLES;
+eval $CHILD2_2_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    id bigint NOT NULL,
+    node text,
+    PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    id bigint NOT NULL,
+    node text,
+    PRIMARY KEY (id)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO tbl_a (id,node) VALUES (1,'DB-G0'),(2,'DB-G1');
+
+--echo
+--echo select test 1
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--connection child2_2
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+SELECT * FROM tbl_a;
+SELECT * FROM tbl_a WHERE id <0 || id >0;
+
+--connection child2_1
+eval $CHILD2_1_SELECT_TABLES;
+
+--connection child2_2
+eval $CHILD2_2_SELECT_TABLES;
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection child2_1
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+
+--connection child2_2
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+
+--enable_warnings
+--source ../include/mdev_22246_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/mdev_22265.cnf b/storage/spider/mysql-test/spider/bugfix/t/mdev_22265.cnf
new file mode 100644
index 00000000..b0853e32
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/mdev_22265.cnf
@@ -0,0 +1,2 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/mdev_22265.test b/storage/spider/mysql-test/spider/bugfix/t/mdev_22265.test
new file mode 100644
index 00000000..0dcb1031
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/mdev_22265.test
@@ -0,0 +1,28 @@
+--source ../include/mdev_22265_init.inc
+--echo
+--echo this test is for MDEV-22265
+--echo
+--echo drop and create databases
+
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+--enable_warnings
+
+--echo
+--echo create table
+--connection master_1
+create table t2345678911234567892123456789312345678941234567895123(id int) ENGINE=SPIDER DEFAULT CHARSET=latin1 COMMENT='host "h114", user "spider", password "spider", port "3306", database "test32738"';
+
+--echo
+--echo deinit
+--disable_warnings
+
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--enable_warnings
+--source ../include/mdev_22265_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/mdev_24020.cnf b/storage/spider/mysql-test/spider/bugfix/t/mdev_24020.cnf
new file mode 100644
index 00000000..05dfd8a0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/mdev_24020.cnf
@@ -0,0 +1,3 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/mdev_24020.test b/storage/spider/mysql-test/spider/bugfix/t/mdev_24020.test
new file mode 100644
index 00000000..ac06d860
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/mdev_24020.test
@@ -0,0 +1,90 @@
+--source ../include/mdev_24020_init.inc
+--echo
+--echo this test is for MDEV-24020
+--echo
+--echo drop and create databases
+
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection child2_1
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+--enable_warnings
+
+--echo
+--echo create table and insert
+
+--connection child2_1
+--disable_query_log
+--disable_ps_protocol
+echo CHILD2_1_CREATE_TABLES;
+eval $CHILD2_1_CREATE_TABLES;
+--enable_ps_protocol
+--enable_query_log
+
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+  a INT,
+  b VARCHAR(30),
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_COMMENT_P_2_1;
+eval CREATE TABLE tbl_a (
+  a INT,
+  b VARCHAR(30),
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_COMMENT_P_2_1;
+--enable_query_log
+INSERT INTO tbl_a VALUES(10000, "  abcd   ");
+INSERT INTO tbl_a VALUES(10001, "  abcd   ");
+INSERT INTO tbl_a VALUES(10002, "  abcd   ");
+INSERT INTO tbl_a VALUES(10003, "[[[abcd][[");
+INSERT INTO tbl_a VALUES(10004, "[[[abcd][[");
+INSERT INTO tbl_a VALUES(10005, "[[[abcd][[");
+INSERT INTO tbl_a VALUES(10006, "[[[abcd]]");
+INSERT INTO tbl_a VALUES(10007, "[[[abcd]]");
+INSERT INTO tbl_a VALUES(10008, "[[[abcd]]");
+INSERT INTO tbl_a VALUES(10009, "[[[**abcd****]]");
+
+--echo
+--echo test 1
+
+--connection master_1
+UPDATE tbl_a SET b = trim(b) WHERE a = 10000;
+SELECT * FROM tbl_a WHERE a = 10000;
+UPDATE tbl_a SET b = ltrim(b) WHERE a = 10001;
+SELECT * FROM tbl_a WHERE a = 10001;
+UPDATE tbl_a SET b = rtrim(b) WHERE a = 10002;
+SELECT * FROM tbl_a WHERE a = 10002;
+UPDATE tbl_a SET b = trim(BOTH '[' FROM b) WHERE a = 10003;
+SELECT * FROM tbl_a WHERE a = 10003;
+UPDATE tbl_a SET b = trim(LEADING '[' FROM b) WHERE a = 10004;
+SELECT * FROM tbl_a WHERE a = 10004;
+UPDATE tbl_a SET b = trim(TRAILING '[' FROM b) WHERE a = 10005;
+SELECT * FROM tbl_a WHERE a = 10005;
+UPDATE tbl_a SET b = trim(LEADING '[' FROM trim(TRAILING ']' FROM b)) WHERE a = 10006;
+SELECT * FROM tbl_a WHERE a = 10006;
+UPDATE tbl_a SET b = trim(TRAILING '[' FROM trim(LEADING ']' FROM b)) WHERE a = 10007;
+SELECT * FROM tbl_a WHERE a = 10007;
+UPDATE tbl_a SET b = trim(TRAILING ']' FROM trim(LEADING '[' FROM b)) WHERE a = 10008;
+SELECT * FROM tbl_a WHERE a = 10008;
+UPDATE tbl_a SET b = trim(BOTH '*' FROM trim(TRAILING ']' FROM trim(LEADING '[' FROM b))) WHERE a = 10009;
+SELECT * FROM tbl_a WHERE a = 10009;
+
+--echo
+--echo deinit
+--disable_warnings
+
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection child2_1
+DROP DATABASE IF EXISTS auto_test_remote;
+
+--enable_warnings
+--source ../include/mdev_24020_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/mdev_24517.cnf b/storage/spider/mysql-test/spider/bugfix/t/mdev_24517.cnf
new file mode 100644
index 00000000..05dfd8a0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/mdev_24517.cnf
@@ -0,0 +1,3 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/mdev_24517.test b/storage/spider/mysql-test/spider/bugfix/t/mdev_24517.test
new file mode 100644
index 00000000..21b9dda4
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/mdev_24517.test
@@ -0,0 +1,80 @@
+--source ../include/mdev_24517_init.inc
+--echo
+--echo this test is for MDEV-24517
+--echo
+--echo drop and create databases
+
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection child2_1
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+--enable_warnings
+
+--echo
+--echo create table and insert
+
+--connection child2_1
+--disable_query_log
+--disable_ps_protocol
+echo CHILD2_1_CREATE_TABLES;
+eval $CHILD2_1_CREATE_TABLES;
+--enable_ps_protocol
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+  i INT,
+  j JSON,
+  PRIMARY KEY(i)
+) $MASTER_1_ENGINE $MASTER_1_COMMENT_P_2_1;
+eval CREATE TABLE tbl_a (
+  i INT,
+  j JSON,
+  PRIMARY KEY(i)
+) $MASTER_1_ENGINE $MASTER_1_COMMENT_P_2_1;
+--enable_query_log
+INSERT INTO tbl_a (i, j) VALUES
+  (1, '{"ID": "3", "Name": "Barney", "Age": 18}'),
+  (2, '{"ID": "4", "Name": "Betty", "Age": 19}'),
+  (3, '{"ID": "2", "Name": "Wilma", "Age": 20}'),
+  (4, '[10, 20, [30, 40]]');
+
+--echo
+--echo test 1
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+SELECT * FROM tbl_a WHERE JSON_EXTRACT(j, '$.Age')=19;
+SELECT * FROM tbl_a WHERE JSON_EXTRACT(j, '$.Name')="Betty";
+SELECT i, JSON_EXTRACT(j, "$.ID")
+  FROM tbl_a
+  WHERE JSON_EXTRACT(j, "$.ID") > 1 AND i < 4
+  ORDER BY JSON_EXTRACT(j, "$.Name");
+SELECT * FROM tbl_a WHERE JSON_EXTRACT(j, '$[1]') = 20;
+SELECT * FROM tbl_a WHERE JSON_EXTRACT(j, '$[2][0]') = 30;
+
+--echo
+--echo deinit
+--disable_warnings
+
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection child2_1
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+
+--enable_warnings
+--source ../include/mdev_24517_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/mdev_24760.cnf b/storage/spider/mysql-test/spider/bugfix/t/mdev_24760.cnf
new file mode 100644
index 00000000..05dfd8a0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/mdev_24760.cnf
@@ -0,0 +1,3 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/mdev_24760.test b/storage/spider/mysql-test/spider/bugfix/t/mdev_24760.test
new file mode 100644
index 00000000..149b057d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/mdev_24760.test
@@ -0,0 +1,49 @@
+--echo #
+--echo # MDEV-24760 SELECT..CASE statement syntax error at Spider Engine table
+--echo #
+
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_query_log
+--enable_result_log
+
+--connection child2_1
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+DROP TABLE IF EXISTS tbl_a;
+eval CREATE TABLE tbl_a (
+  id int NOT NULL AUTO_INCREMENT,
+  name varchar(255) DEFAULT NULL,
+  PRIMARY KEY (id)
+) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+
+INSERT INTO tbl_a (name) VALUES ('Alice'), ('Bob');
+
+--connection master_1
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+eval CREATE TABLE tbl_a (
+  id int NOT NULL AUTO_INCREMENT,
+  name varchar(255) DEFAULT NULL,
+  PRIMARY KEY (id)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET COMMENT='table "tbl_a"'
+PARTITION BY HASH(id) (
+  PARTITION pt1 COMMENT='srv "s_2_1"'
+);
+
+SELECT id, CASE WHEN name='Alice' THEN "A" WHEN name='Bob' THEN "B" END FROM tbl_a;
+SELECT id, CASE name WHEN 'Alice' THEN "A" WHEN 'Bob' THEN "B" END FROM tbl_a;
+
+DROP DATABASE auto_test_local;
+
+--connection child2_1
+DROP DATABASE auto_test_remote;
+
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_query_log
+--enable_result_log
diff --git a/storage/spider/mysql-test/spider/bugfix/t/mdev_26013.cnf b/storage/spider/mysql-test/spider/bugfix/t/mdev_26013.cnf
new file mode 100644
index 00000000..05dfd8a0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/mdev_26013.cnf
@@ -0,0 +1,3 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/mdev_26013.test b/storage/spider/mysql-test/spider/bugfix/t/mdev_26013.test
new file mode 100644
index 00000000..e31041c3
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/mdev_26013.test
@@ -0,0 +1,51 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+
+--echo
+--echo MDEV-26013 distinct not work properly in some cases for spider tables
+--echo
+
+--connection child2_1
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+eval CREATE TABLE tbl_a (
+    `a`int,
+    `b`int,
+    PRIMARY KEY (`a`)
+) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+
+insert into `tbl_a` VALUES (1,999), (2,999);
+
+--connection master_1
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+eval CREATE TABLE tbl_a (
+    `a`int,
+    `b`int,
+    PRIMARY KEY (`a`)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET COMMENT='table "tbl_a"' PARTITION BY LIST COLUMNS(`a`) (
+    PARTITION `pt1` DEFAULT COMMENT = 'srv "s_2_1"'
+);
+
+--connection master_1
+SELECT distinct b FROM tbl_a WHERE b=999;
+
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_remote;
+--connection child2_1
+DROP DATABASE IF EXISTS auto_test_remote;
+
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/t/quick_mode_0.cnf b/storage/spider/mysql-test/spider/bugfix/t/quick_mode_0.cnf
new file mode 100644
index 00000000..e0ffb99c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/quick_mode_0.cnf
@@ -0,0 +1,4 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
+!include ../my_2_2.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/quick_mode_0.test b/storage/spider/mysql-test/spider/bugfix/t/quick_mode_0.test
new file mode 100644
index 00000000..235edc10
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/quick_mode_0.test
@@ -0,0 +1,156 @@
+--source ../include/quick_mode_0_init.inc
+--echo
+--echo this test is for MDEV-16520
+--echo
+--echo drop and create databases
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection child2_1
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+--connection child2_2
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+--enable_warnings
+
+--echo
+--echo create table and insert
+
+--connection child2_1
+--disable_query_log
+echo CHILD2_1_CREATE_TABLES;
+eval $CHILD2_1_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection child2_2
+--disable_query_log
+echo CHILD2_2_CREATE_TABLES;
+eval $CHILD2_2_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+echo CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_2;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_2;
+--enable_query_log
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_a (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_a (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+INSERT INTO tbl_b (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_b (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_b (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+
+--echo
+--echo select test 1
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--connection child2_2
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+
+--connection child2_1
+--replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+
+--connection child2_2
+--replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+eval $CHILD2_2_SELECT_ARGUMENT1;
+eval $CHILD2_2_SELECT_TABLES;
+
+--connection master_1
+eval $MASTER_1_SET_QUICK_PAGE_BYTE_6;
+
+--echo
+--echo select test 2
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--connection child2_2
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+
+--connection child2_1
+--replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+
+--connection child2_2
+--replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+eval $CHILD2_2_SELECT_ARGUMENT1;
+eval $CHILD2_2_SELECT_TABLES;
+
+--connection master_1
+eval $MASTER_1_SET_QUICK_PAGE_BYTE_0;
+
+--echo
+--echo select test 3
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--connection child2_2
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+
+--connection child2_1
+--replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+
+--connection child2_2
+--replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+eval $CHILD2_2_SELECT_ARGUMENT1;
+eval $CHILD2_2_SELECT_TABLES;
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection child2_1
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+
+--connection child2_2
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+
+--enable_warnings
+--source ../include/quick_mode_0_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/quick_mode_1.cnf b/storage/spider/mysql-test/spider/bugfix/t/quick_mode_1.cnf
new file mode 100644
index 00000000..e0ffb99c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/quick_mode_1.cnf
@@ -0,0 +1,4 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
+!include ../my_2_2.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/quick_mode_1.test b/storage/spider/mysql-test/spider/bugfix/t/quick_mode_1.test
new file mode 100644
index 00000000..01fa0cb5
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/quick_mode_1.test
@@ -0,0 +1,156 @@
+--source ../include/quick_mode_1_init.inc
+--echo
+--echo this test is for MDEV-16520
+--echo
+--echo drop and create databases
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection child2_1
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+--connection child2_2
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+--enable_warnings
+
+--echo
+--echo create table and insert
+
+--connection child2_1
+--disable_query_log
+echo CHILD2_1_CREATE_TABLES;
+eval $CHILD2_1_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection child2_2
+--disable_query_log
+echo CHILD2_2_CREATE_TABLES;
+eval $CHILD2_2_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+echo CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_2;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_2;
+--enable_query_log
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_a (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_a (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+INSERT INTO tbl_b (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_b (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_b (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+
+--echo
+--echo select test 1
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--connection child2_2
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+
+--connection child2_1
+--replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+
+--connection child2_2
+--replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+eval $CHILD2_2_SELECT_ARGUMENT1;
+eval $CHILD2_2_SELECT_TABLES;
+
+--connection master_1
+eval $MASTER_1_SET_QUICK_PAGE_BYTE_6;
+
+--echo
+--echo select test 2
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--connection child2_2
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+
+--connection child2_1
+--replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+
+--connection child2_2
+--replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+eval $CHILD2_2_SELECT_ARGUMENT1;
+eval $CHILD2_2_SELECT_TABLES;
+
+--connection master_1
+eval $MASTER_1_SET_QUICK_PAGE_BYTE_0;
+
+--echo
+--echo select test 3
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--connection child2_2
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+
+--connection child2_1
+--replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+
+--connection child2_2
+--replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+eval $CHILD2_2_SELECT_ARGUMENT1;
+eval $CHILD2_2_SELECT_TABLES;
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection child2_1
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+
+--connection child2_2
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+
+--enable_warnings
+--source ../include/quick_mode_1_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/quick_mode_2.cnf b/storage/spider/mysql-test/spider/bugfix/t/quick_mode_2.cnf
new file mode 100644
index 00000000..e0ffb99c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/quick_mode_2.cnf
@@ -0,0 +1,4 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
+!include ../my_2_2.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/quick_mode_2.test b/storage/spider/mysql-test/spider/bugfix/t/quick_mode_2.test
new file mode 100644
index 00000000..3ea8138e
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/quick_mode_2.test
@@ -0,0 +1,156 @@
+--source ../include/quick_mode_2_init.inc
+--echo
+--echo this test is for MDEV-16520
+--echo
+--echo drop and create databases
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection child2_1
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+--connection child2_2
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+--enable_warnings
+
+--echo
+--echo create table and insert
+
+--connection child2_1
+--disable_query_log
+echo CHILD2_1_CREATE_TABLES;
+eval $CHILD2_1_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection child2_2
+--disable_query_log
+echo CHILD2_2_CREATE_TABLES;
+eval $CHILD2_2_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+echo CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_2;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_2;
+--enable_query_log
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_a (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_a (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+INSERT INTO tbl_b (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_b (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_b (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+
+--echo
+--echo select test 1
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--connection child2_2
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+
+--connection child2_1
+--replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+
+--connection child2_2
+--replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+eval $CHILD2_2_SELECT_ARGUMENT1;
+eval $CHILD2_2_SELECT_TABLES;
+
+--connection master_1
+eval $MASTER_1_SET_QUICK_PAGE_BYTE_6;
+
+--echo
+--echo select test 2
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--connection child2_2
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+
+--connection child2_1
+--replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+
+--connection child2_2
+--replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+eval $CHILD2_2_SELECT_ARGUMENT1;
+eval $CHILD2_2_SELECT_TABLES;
+
+--connection master_1
+eval $MASTER_1_SET_QUICK_PAGE_BYTE_0;
+
+--echo
+--echo select test 3
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--connection child2_2
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+
+--connection child2_1
+--replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+
+--connection child2_2
+--replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+eval $CHILD2_2_SELECT_ARGUMENT1;
+eval $CHILD2_2_SELECT_TABLES;
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection child2_1
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+
+--connection child2_2
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+
+--enable_warnings
+--source ../include/quick_mode_2_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/quick_mode_3.cnf b/storage/spider/mysql-test/spider/bugfix/t/quick_mode_3.cnf
new file mode 100644
index 00000000..e0ffb99c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/quick_mode_3.cnf
@@ -0,0 +1,4 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
+!include ../my_2_2.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/quick_mode_3.test b/storage/spider/mysql-test/spider/bugfix/t/quick_mode_3.test
new file mode 100644
index 00000000..bc926b0a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/quick_mode_3.test
@@ -0,0 +1,157 @@
+--source ../include/quick_mode_3_init.inc
+--echo
+--echo this test is for MDEV-16520
+--echo
+--echo drop and create databases
+
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection child2_1
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+--connection child2_2
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+--enable_warnings
+
+--echo
+--echo create table and insert
+
+--connection child2_1
+--disable_query_log
+echo CHILD2_1_CREATE_TABLES;
+eval $CHILD2_1_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection child2_2
+--disable_query_log
+echo CHILD2_2_CREATE_TABLES;
+eval $CHILD2_2_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+echo CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_2;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_2;
+--enable_query_log
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_a (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_a (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+INSERT INTO tbl_b (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_b (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_b (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+
+--echo
+--echo select test 1
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--connection child2_2
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+
+--connection child2_1
+--replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+
+--connection child2_2
+--replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+eval $CHILD2_2_SELECT_ARGUMENT1;
+eval $CHILD2_2_SELECT_TABLES;
+
+--connection master_1
+eval $MASTER_1_SET_QUICK_PAGE_BYTE_6;
+
+--echo
+--echo select test 2
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--connection child2_2
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+
+--connection child2_1
+--replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+
+--connection child2_2
+--replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+eval $CHILD2_2_SELECT_ARGUMENT1;
+eval $CHILD2_2_SELECT_TABLES;
+
+--connection master_1
+eval $MASTER_1_SET_QUICK_PAGE_BYTE_0;
+
+--echo
+--echo select test 3
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--connection child2_2
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+
+--connection child2_1
+--replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+
+--connection child2_2
+--replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+eval $CHILD2_2_SELECT_ARGUMENT1;
+eval $CHILD2_2_SELECT_TABLES;
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection child2_1
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+
+--connection child2_2
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+
+--enable_warnings
+--source ../include/quick_mode_3_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/return_found_rows_insert.cnf b/storage/spider/mysql-test/spider/bugfix/t/return_found_rows_insert.cnf
new file mode 100644
index 00000000..05dfd8a0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/return_found_rows_insert.cnf
@@ -0,0 +1,3 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/return_found_rows_insert.test b/storage/spider/mysql-test/spider/bugfix/t/return_found_rows_insert.test
new file mode 100644
index 00000000..2beb9d9d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/return_found_rows_insert.test
@@ -0,0 +1,98 @@
+--source ../include/return_found_rows_insert_init.inc
+--echo
+--echo this test is for MDEV-18973
+--echo
+--echo drop and create databases
+
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection child2_1
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+--enable_warnings
+
+--echo
+--echo create table and insert
+
+--connection child2_1
+--disable_query_log
+echo CHILD2_1_CREATE_TABLES;
+eval $CHILD2_1_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    skey int NOT NULL,
+    dt date NOT NULL,
+    tm time NOT NULL,
+    PRIMARY KEY (skey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    skey int NOT NULL,
+    dt date NOT NULL,
+    tm time NOT NULL,
+    PRIMARY KEY (skey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO tbl_a (skey, dt, tm) VALUES (0, '2012-01-01', '12:00:00'),(1, '2012-02-01', '12:00:00'),(2, '2012-03-01', '12:00:00'),(3, '2012-04-01', '12:00:00'),(4, '2012-05-01', '12:00:00'),(5, '2012-06-01', '12:00:00'),(6, '2012-07-01', '12:00:00'),(7, '2012-08-01', '12:00:00'),(8, '2012-09-01', '12:00:00'),(9, '2012-10-01', '12:00:00');
+FLUSH TABLES;
+
+--echo
+--echo select test 1
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--disable_query_log
+echo MYSQL -v -v -u root -h localhost -P MASTER_1_MYPORT -S MASTER_1_MYSOCK -e "MASTER_1_SET_COMMAND INSERT IGNORE INTO tbl_a (skey, dt, tm) VALUES (0, '2013-01-01', '13:00:00'),(2, '2013-02-01', '13:00:00'),(4, '2013-03-01', '13:00:00'),(7, '2013-04-01', '13:00:00'),(8, '2013-05-01', '13:00:00'),(10, '2013-06-01', '13:00:00'),(11, '2013-07-01', '13:00:00'),(12, '2013-08-01', '13:00:00'),(13, '2013-09-01', '13:00:00'),(14, '2013-10-01', '13:00:00')" auto_test_local;
+exec $MYSQL -v -v -u root -h localhost -P $MASTER_1_MYPORT -S $MASTER_1_MYSOCK -e "$MASTER_1_SET_COMMAND INSERT IGNORE INTO tbl_a (skey, dt, tm) VALUES (0, '2013-01-01', '13:00:00'),(2, '2013-02-01', '13:00:00'),(4, '2013-03-01', '13:00:00'),(7, '2013-04-01', '13:00:00'),(8, '2013-05-01', '13:00:00'),(10, '2013-06-01', '13:00:00'),(11, '2013-07-01', '13:00:00'),(12, '2013-08-01', '13:00:00'),(13, '2013-09-01', '13:00:00'),(14, '2013-10-01', '13:00:00')" auto_test_local;
+--enable_query_log
+
+--connection child2_1
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+
+TRUNCATE TABLE mysql.general_log;
+
+--disable_query_log
+echo MYSQL -v -v -u root -h localhost -P MASTER_1_MYPORT -S MASTER_1_MYSOCK -e "MASTER_1_SET_COMMAND REPLACE INTO tbl_a (skey, dt, tm) VALUES (1, '2012-02-01', '12:00:00'),(3, '2012-12-01', '11:00:00'),(8, '2012-11-30', '11:00:00'),(9, '2012-11-29', '11:00:00'),(10, '2012-11-28', '11:00:00'),(15, '2012-11-27', '11:00:00'),(16, '2012-11-26', '11:00:00'),(17, '2012-11-25', '11:00:00'),(18, '2012-11-24', '11:00:00'),(19, '2012-11-23', '11:00:00')" auto_test_local;
+exec $MYSQL -v -v -u root -h localhost -P $MASTER_1_MYPORT -S $MASTER_1_MYSOCK -e "$MASTER_1_SET_COMMAND REPLACE INTO tbl_a (skey, dt, tm) VALUES (1, '2012-02-01', '12:00:00'),(3, '2012-12-01', '11:00:00'),(8, '2012-11-30', '11:00:00'),(9, '2012-11-29', '11:00:00'),(10, '2012-11-28', '11:00:00'),(15, '2012-11-27', '11:00:00'),(16, '2012-11-26', '11:00:00'),(17, '2012-11-25', '11:00:00'),(18, '2012-11-24', '11:00:00'),(19, '2012-11-23', '11:00:00')" auto_test_local;
+--enable_query_log
+
+--connection child2_1
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+
+TRUNCATE TABLE mysql.general_log;
+
+--disable_query_log
+echo MYSQL -v -v -u root -h localhost -P MASTER_1_MYPORT -S MASTER_1_MYSOCK -e "MASTER_1_SET_COMMAND INSERT INTO tbl_a (skey, dt, tm) VALUES (1, '2012-11-01', '11:00:00'),(3, '2012-12-01', '11:00:00'),(11, '2012-11-30', '11:00:00'),(15, '2012-11-29', '11:00:00'),(16, '2012-11-28', '11:00:00'),(20, '2012-11-27', '11:00:00'),(21, '2012-11-26', '11:00:00'),(22, '2012-11-25', '11:00:00'),(23, '2012-11-24', '11:00:00'),(24, '2012-11-23', '11:00:00') ON DUPLICATE KEY UPDATE dt=VALUE(dt), tm=VALUE(tm)" auto_test_local;
+exec $MYSQL -v -v -u root -h localhost -P $MASTER_1_MYPORT -S $MASTER_1_MYSOCK -e "$MASTER_1_SET_COMMAND INSERT INTO tbl_a (skey, dt, tm) VALUES (1, '2012-11-01', '11:00:00'),(3, '2012-12-01', '11:00:00'),(11, '2012-11-30', '11:00:00'),(15, '2012-11-29', '11:00:00'),(16, '2012-11-28', '11:00:00'),(20, '2012-11-27', '11:00:00'),(21, '2012-11-26', '11:00:00'),(22, '2012-11-25', '11:00:00'),(23, '2012-11-24', '11:00:00'),(24, '2012-11-23', '11:00:00') ON DUPLICATE KEY UPDATE dt=VALUE(dt), tm=VALUE(tm)" auto_test_local;
+--enable_query_log
+
+--connection child2_1
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+
+--echo
+--echo deinit
+--disable_warnings
+
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection child2_1
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+
+--enable_warnings
+--source ../include/return_found_rows_insert_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/return_found_rows_update.cnf b/storage/spider/mysql-test/spider/bugfix/t/return_found_rows_update.cnf
new file mode 100644
index 00000000..05dfd8a0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/return_found_rows_update.cnf
@@ -0,0 +1,3 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/return_found_rows_update.test b/storage/spider/mysql-test/spider/bugfix/t/return_found_rows_update.test
new file mode 100644
index 00000000..50d9f345
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/return_found_rows_update.test
@@ -0,0 +1,78 @@
+--source ../include/return_found_rows_update_init.inc
+--echo
+--echo this test is for MDEV-18973
+--echo
+--echo drop and create databases
+
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection child2_1
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+--enable_warnings
+
+--echo
+--echo create table and insert
+
+--connection child2_1
+--disable_query_log
+echo CHILD2_1_CREATE_TABLES;
+eval $CHILD2_1_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    skey int NOT NULL,
+    dt date NOT NULL,
+    tm time NOT NULL,
+    KEY idx1 (skey,dt)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    skey int NOT NULL,
+    dt date NOT NULL,
+    tm time NOT NULL,
+    KEY idx1 (skey,dt)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO tbl_a (skey, dt, tm) VALUES (0, '2012-01-01', '12:00:00'),(1, '2012-02-01', '12:00:00'),(2, '2012-03-01', '12:00:00'),(3, '2012-04-01', '12:00:00'),(4, '2012-05-01', '12:00:00'),(5, '2012-06-01', '12:00:00'),(6, '2012-07-01', '12:00:00'),(7, '2012-08-01', '12:00:00'),(8, '2012-09-01', '12:00:00'),(9, '2012-10-01', '12:00:00');
+INSERT INTO tbl_a (skey, dt, tm) VALUES (0, '2013-01-01', '13:00:00'),(1, '2013-02-01', '13:00:00'),(2, '2013-03-01', '13:00:00'),(3, '2013-04-01', '13:00:00'),(4, '2013-05-01', '13:00:00'),(5, '2013-06-01', '13:00:00'),(6, '2013-07-01', '13:00:00'),(7, '2013-08-01', '13:00:00'),(8, '2013-09-01', '13:00:00'),(9, '2013-10-01', '13:00:00');
+INSERT INTO tbl_a (skey, dt, tm) VALUES (0, '2012-11-01', '11:00:00'),(1, '2012-12-01', '11:00:00'),(2, '2012-11-30', '11:00:00'),(3, '2012-11-29', '11:00:00'),(4, '2012-11-28', '11:00:00'),(5, '2012-11-27', '11:00:00'),(6, '2012-11-26', '11:00:00'),(7, '2012-11-25', '11:00:00'),(8, '2012-11-24', '11:00:00'),(9, '2012-11-23', '11:00:00');
+FLUSH TABLES;
+
+--echo
+--echo select test 1
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--disable_query_log
+echo MYSQL -v -v -u root -h localhost -P MASTER_1_MYPORT -S MASTER_1_MYSOCK -e "UPDATE tbl_a SET tm = '12:00:00' WHERE skey = 0" auto_test_local;
+exec $MYSQL -v -v -u root -h localhost --default-character-set=latin1 -P $MASTER_1_MYPORT -S $MASTER_1_MYSOCK -e "UPDATE tbl_a SET tm = '12:00:00' WHERE skey = 0" auto_test_local;
+--enable_query_log
+
+--connection child2_1
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+
+--echo
+--echo deinit
+--disable_warnings
+
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection child2_1
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+
+--enable_warnings
+--source ../include/return_found_rows_update_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/same_server_link.cnf b/storage/spider/mysql-test/spider/bugfix/t/same_server_link.cnf
new file mode 100644
index 00000000..b0853e32
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/same_server_link.cnf
@@ -0,0 +1,2 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/same_server_link.test b/storage/spider/mysql-test/spider/bugfix/t/same_server_link.test
new file mode 100644
index 00000000..1468f00c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/same_server_link.test
@@ -0,0 +1,55 @@
+--source ../include/same_server_link_init.inc
+--echo
+--echo this test is for MDEV-6268
+--echo
+--echo drop and create databases
+
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+--enable_warnings
+
+--echo
+--echo create table
+
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+echo CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+
+--echo
+--echo select test 1
+
+--connection master_1
+--disable_result_log
+--error 12720
+INSERT INTO tbl_a VALUES(1);
+--enable_result_log
+
+--echo
+--echo deinit
+--disable_warnings
+
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--enable_warnings
+--source ../include/same_server_link_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/select_by_null.cnf b/storage/spider/mysql-test/spider/bugfix/t/select_by_null.cnf
new file mode 100644
index 00000000..05dfd8a0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/select_by_null.cnf
@@ -0,0 +1,3 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/select_by_null.test b/storage/spider/mysql-test/spider/bugfix/t/select_by_null.test
new file mode 100644
index 00000000..1f540b2a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/select_by_null.test
@@ -0,0 +1,72 @@
+--source ../include/select_by_null_init.inc
+--echo
+--echo this test is for MDEV-16279
+--echo
+--echo drop and create databases
+
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection child2_1
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+--enable_warnings
+
+--echo
+--echo create table and insert
+
+--connection child2_1
+--disable_query_log
+echo CHILD2_1_CREATE_TABLES;
+eval $CHILD2_1_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_a (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_a (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+FLUSH TABLES;
+
+--echo
+--echo select test 1
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+SELECT pkey FROM tbl_a WHERE NULL;
+
+--connection child2_1
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+
+--echo
+--echo deinit
+--disable_warnings
+
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection child2_1
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+
+--enable_warnings
+--source ../include/select_by_null_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/select_with_backquote.cnf b/storage/spider/mysql-test/spider/bugfix/t/select_with_backquote.cnf
new file mode 100644
index 00000000..05dfd8a0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/select_with_backquote.cnf
@@ -0,0 +1,3 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/select_with_backquote.test b/storage/spider/mysql-test/spider/bugfix/t/select_with_backquote.test
new file mode 100644
index 00000000..4c4d687c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/select_with_backquote.test
@@ -0,0 +1,74 @@
+--source ../include/select_with_backquote_init.inc
+--echo
+--echo this test is for MDEV-17204
+--echo
+--echo drop and create databases
+
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection child2_1
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+--enable_warnings
+
+--echo
+--echo create table and insert
+
+--connection child2_1
+--disable_query_log
+echo CHILD2_1_CREATE_TABLES;
+eval $CHILD2_1_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    txt_utf8 char(8) NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE DEFAULT CHARACTER SET utf8 MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    txt_utf8 char(8) NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE DEFAULT CHARACTER SET utf8 $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO tbl_a (pkey,txt_utf8) VALUES (0,'01234567'),(1,'12345678'),(2,'23456789'),(3,'34567890'),(4,'45678901'),(5,'56789012'),(6,'67890123'),(7,'78901234'),(8,'89012345'),(9,'90123456');
+FLUSH TABLES;
+
+--echo
+--echo test 1
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+SET NAMES utf8;
+SELECT `pkey`, LEFT(`txt_utf8`, 4) FROM `auto_test_local`.`tbl_a` ORDER BY LEFT(`txt_utf8`, 4) LIMIT 3;
+
+--connection child2_1
+SET NAMES utf8;
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+
+--echo
+--echo deinit
+--disable_warnings
+
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection child2_1
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+
+--enable_warnings
+--source ../include/select_with_backquote_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/self_reference.cnf b/storage/spider/mysql-test/spider/bugfix/t/self_reference.cnf
new file mode 100644
index 00000000..b0853e32
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/self_reference.cnf
@@ -0,0 +1,2 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/self_reference.test b/storage/spider/mysql-test/spider/bugfix/t/self_reference.test
new file mode 100644
index 00000000..b93cf8ef
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/self_reference.test
@@ -0,0 +1,45 @@
+--source ../include/self_reference_init.inc
+--echo
+--echo this test is for MDEV-6268
+--echo
+--echo drop and create databases
+
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+--enable_warnings
+
+--echo
+--echo create table
+
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+
+--echo
+--echo select test 1
+
+--connection master_1
+--error 12719
+SELECT pkey FROM tbl_a;
+
+--echo
+--echo deinit
+--disable_warnings
+
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--enable_warnings
+--source ../include/self_reference_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/slave_transaction_retry_errors_5digit.cnf b/storage/spider/mysql-test/spider/bugfix/t/slave_transaction_retry_errors_5digit.cnf
new file mode 100644
index 00000000..c861d27b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/slave_transaction_retry_errors_5digit.cnf
@@ -0,0 +1,6 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
+!include ../my_4_1.cnf
+[mysqld.4.1]
+slave_transaction_retry_errors="10000,20000,30000"
diff --git a/storage/spider/mysql-test/spider/bugfix/t/slave_transaction_retry_errors_5digit.test b/storage/spider/mysql-test/spider/bugfix/t/slave_transaction_retry_errors_5digit.test
new file mode 100644
index 00000000..fc91a43e
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/slave_transaction_retry_errors_5digit.test
@@ -0,0 +1,9 @@
+--source ../include/slave_transaction_retry_errors_5digit_init.inc
+--echo
+
+--connection slave1_1
+SHOW VARIABLES LIKE 'slave_transaction_retry_errors';
+
+--source ../include/slave_transaction_retry_errors_5digit_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/slave_trx_isolation.cnf b/storage/spider/mysql-test/spider/bugfix/t/slave_trx_isolation.cnf
new file mode 100644
index 00000000..45019d6c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/slave_trx_isolation.cnf
@@ -0,0 +1,4 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
+!include ../my_4_1.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/slave_trx_isolation.test b/storage/spider/mysql-test/spider/bugfix/t/slave_trx_isolation.test
new file mode 100644
index 00000000..c608ae01
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/slave_trx_isolation.test
@@ -0,0 +1,96 @@
+--source ../include/slave_trx_isolation_init.inc
+--echo
+--echo drop and create databases
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection slave1_1
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection child2_1
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+--enable_warnings
+
+--echo
+--echo create table and insert
+
+--connection child2_1
+--disable_query_log
+echo CHILD2_1_CREATE_TABLES;
+eval $CHILD2_1_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+save_master_pos;
+
+--connection slave1_1
+sync_with_master;
+
+--connection master_1
+SET SESSION sql_log_bin= 0;
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+SET SESSION sql_log_bin= 1;
+
+--connection slave1_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+
+--connection master_1
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+save_master_pos;
+
+--connection slave1_1
+sync_with_master;
+
+--connection master_1
+SET SESSION sql_log_bin= 0;
+
+--connection child2_1
+--replace_regex /-[0-9a-f]{12}-[0-9a-f]+-/-xxxxxxxxxxxx-xxxxx-/
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+
+--connection slave1_1
+SELECT pkey FROM tbl_a ORDER BY pkey;
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection slave1_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection child2_1
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+
+--enable_warnings
+--source ../include/slave_trx_isolation_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/spider_table_sts.cnf b/storage/spider/mysql-test/spider/bugfix/t/spider_table_sts.cnf
new file mode 100644
index 00000000..b0853e32
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/spider_table_sts.cnf
@@ -0,0 +1,2 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/spider_table_sts.test b/storage/spider/mysql-test/spider/bugfix/t/spider_table_sts.test
new file mode 100644
index 00000000..72130175
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/spider_table_sts.test
@@ -0,0 +1,46 @@
+--source ../include/spider_table_sts_init.inc
+--echo
+--echo this test is for MDEV-19842
+--echo
+--echo drop and create databases
+
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+--enable_warnings
+
+--echo
+--echo create table
+
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+
+--echo
+--echo select test 1
+
+--connection master_1
+--error 12609
+SELECT pkey FROM tbl_a;
+
+--echo
+--echo deinit
+--disable_warnings
+
+--connection master_1
+--error 12609
+DROP DATABASE IF EXISTS auto_test_local;
+
+--enable_warnings
+--source ../include/spider_table_sts_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/sql_mode.inc b/storage/spider/mysql-test/spider/bugfix/t/sql_mode.inc
new file mode 100644
index 00000000..f094b1f8
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/sql_mode.inc
@@ -0,0 +1,66 @@
+--echo
+--echo this test is for MDEV-16508
+--echo
+--echo drop and create databases
+
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection child2_1
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+--enable_warnings
+
+--echo
+--echo create table and insert
+
+--connection child2_1
+--disable_query_log
+echo CHILD2_1_CREATE_TABLES;
+eval $CHILD2_1_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+
+--echo
+--echo select test
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+SELECT * FROM tbl_a ORDER BY pkey;
+
+--connection child2_1
+--replace_regex /-[0-9a-f]{12}-[0-9a-f]+-/-xxxxxxxxxxxx-xxxxx-/
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+
+--echo
+--echo deinit
+--disable_warnings
+
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection child2_1
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/bugfix/t/sql_mode_mariadb.cnf b/storage/spider/mysql-test/spider/bugfix/t/sql_mode_mariadb.cnf
new file mode 100644
index 00000000..05dfd8a0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/sql_mode_mariadb.cnf
@@ -0,0 +1,3 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/sql_mode_mariadb.test b/storage/spider/mysql-test/spider/bugfix/t/sql_mode_mariadb.test
new file mode 100644
index 00000000..c63514d2
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/sql_mode_mariadb.test
@@ -0,0 +1,5 @@
+--source ../include/sql_mode_mariadb_init.inc
+--source sql_mode.inc
+--source ../include/sql_mode_mariadb_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/sql_mode_mysql.cnf b/storage/spider/mysql-test/spider/bugfix/t/sql_mode_mysql.cnf
new file mode 100644
index 00000000..05dfd8a0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/sql_mode_mysql.cnf
@@ -0,0 +1,3 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/sql_mode_mysql.test b/storage/spider/mysql-test/spider/bugfix/t/sql_mode_mysql.test
new file mode 100644
index 00000000..3a0f8d20
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/sql_mode_mysql.test
@@ -0,0 +1,5 @@
+--source ../include/sql_mode_mysql_init.inc
+--source sql_mode.inc
+--source ../include/sql_mode_mysql_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/strict_group_by.cnf b/storage/spider/mysql-test/spider/bugfix/t/strict_group_by.cnf
new file mode 100644
index 00000000..e0ffb99c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/strict_group_by.cnf
@@ -0,0 +1,4 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
+!include ../my_2_2.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/strict_group_by.test b/storage/spider/mysql-test/spider/bugfix/t/strict_group_by.test
new file mode 100644
index 00000000..8b8da46d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/strict_group_by.test
@@ -0,0 +1,98 @@
+--source ../include/strict_group_by_init.inc
+--echo
+--echo this test is for MDEV-18988
+--echo
+--echo drop and create databases
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection child2_1
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+--connection child2_2
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+--enable_warnings
+
+--echo
+--echo create table and insert
+
+--connection child2_1
+--disable_query_log
+echo CHILD2_1_CREATE_TABLES;
+eval $CHILD2_1_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection child2_2
+--disable_query_log
+echo CHILD2_2_CREATE_TABLES;
+eval $CHILD2_2_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    skey int NOT NULL,
+    PRIMARY KEY (pkey),
+    KEY idx1 (skey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    skey int NOT NULL,
+    PRIMARY KEY (pkey),
+    KEY idx1 (skey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO tbl_a (pkey,skey) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+INSERT INTO tbl_a (pkey,skey) VALUES (10,10),(11,11),(12,12),(13,13),(14,14),(15,15),(16,16),(17,17),(18,18),(19,19);
+INSERT INTO tbl_a (pkey,skey) VALUES (20,5),(21,6),(22,7),(23,8),(24,9),(25,10),(26,11),(27,12),(28,13),(29,14);
+
+--echo
+--echo select test 1
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--connection child2_2
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+FLUSH TABLES;
+SELECT count(pkey) cnt, skey FROM tbl_a;
+
+--connection child2_1
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+
+--connection child2_2
+eval $CHILD2_2_SELECT_ARGUMENT1;
+eval $CHILD2_2_SELECT_TABLES;
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection child2_1
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+
+--connection child2_2
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+
+--enable_warnings
+--source ../include/strict_group_by_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/wait_timeout.cnf b/storage/spider/mysql-test/spider/bugfix/t/wait_timeout.cnf
new file mode 100644
index 00000000..e0ffb99c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/wait_timeout.cnf
@@ -0,0 +1,4 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
+!include ../my_2_2.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/wait_timeout.test b/storage/spider/mysql-test/spider/bugfix/t/wait_timeout.test
new file mode 100644
index 00000000..8da6e8fe
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/wait_timeout.test
@@ -0,0 +1,109 @@
+--source ../include/wait_timeout_init.inc
+--echo
+--echo this test is for MDEV-16530
+--echo
+--echo drop and create databases
+
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection child2_1
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+--connection child2_1_2
+USE auto_test_remote;
+
+--connection child2_2
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+--connection child2_2_2
+USE auto_test_remote2;
+--enable_warnings
+
+--echo
+--echo create table and insert
+
+--connection child2_1
+--disable_query_log
+echo CHILD2_1_CREATE_TABLES;
+eval $CHILD2_1_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection child2_2
+--disable_query_log
+echo CHILD2_2_CREATE_TABLES;
+eval $CHILD2_2_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_a (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_a (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+
+--echo
+--echo select test 1
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+LOCK TABLE tbl_a READ;
+
+--connection child2_2
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+send_eval INSERT INTO tbl_a SELECT pkey + 30 FROM tbl_a ORDER BY pkey;
+
+--connection child2_1_2
+SELECT SLEEP(2);
+eval $CHILD2_1_SELECT_ARGUMENT1;
+
+--connection child2_2_2
+eval $CHILD2_2_SELECT_ARGUMENT1;
+
+--connection child2_1
+UNLOCK TABLES;
+eval $CHILD2_1_SELECT_TABLES;
+
+--connection child2_2
+eval $CHILD2_2_SELECT_TABLES;
+
+--connection master_1
+reap;
+
+--echo
+--echo deinit
+--disable_warnings
+
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection child2_1
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+
+--connection child2_2
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+
+--enable_warnings
+--source ../include/wait_timeout_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/wrapper_mariadb.cnf b/storage/spider/mysql-test/spider/bugfix/t/wrapper_mariadb.cnf
new file mode 100644
index 00000000..05dfd8a0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/wrapper_mariadb.cnf
@@ -0,0 +1,3 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/wrapper_mariadb.test b/storage/spider/mysql-test/spider/bugfix/t/wrapper_mariadb.test
new file mode 100644
index 00000000..4f980140
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/wrapper_mariadb.test
@@ -0,0 +1,71 @@
+--source ../include/wrapper_mariadb_init.inc
+--echo
+--echo this test is for MDEV-18313
+--echo
+--echo drop and create databases
+
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection child2_1
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+--enable_warnings
+
+--echo
+--echo create table and insert
+
+--connection child2_1
+--disable_query_log
+echo CHILD2_1_CREATE_TABLES;
+eval $CHILD2_1_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+
+--echo
+--echo select test
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+SELECT * FROM tbl_a ORDER BY pkey;
+
+--connection child2_1
+# in --ps a query is logged differently in a general log
+replace_regex /order by t0.`pkey`/order by `pkey`/;
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+
+--echo
+--echo deinit
+--disable_warnings
+
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection child2_1
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+
+--enable_warnings
+--source ../include/wrapper_mariadb_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/bugfix/t/xa_cmd.cnf b/storage/spider/mysql-test/spider/bugfix/t/xa_cmd.cnf
new file mode 100644
index 00000000..05dfd8a0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/xa_cmd.cnf
@@ -0,0 +1,3 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
diff --git a/storage/spider/mysql-test/spider/bugfix/t/xa_cmd.test b/storage/spider/mysql-test/spider/bugfix/t/xa_cmd.test
new file mode 100644
index 00000000..9ae52807
--- /dev/null
+++ b/storage/spider/mysql-test/spider/bugfix/t/xa_cmd.test
@@ -0,0 +1,69 @@
+--source ../include/xa_cmd_init.inc
+--echo
+--echo this test is for MDEV-19794
+--echo
+--echo drop and create databases
+
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection child2_1
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+--enable_warnings
+
+--echo
+--echo create table and insert
+
+--connection child2_1
+--disable_query_log
+echo CHILD2_1_CREATE_TABLES;
+eval $CHILD2_1_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+XA START 'test';
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+XA END 'test';
+XA PREPARE 'test';
+XA COMMIT 'test';
+
+--connection child2_1
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+
+--echo
+--echo deinit
+--disable_warnings
+
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection child2_1
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+
+--enable_warnings
+--source ../include/xa_cmd_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/feature/include/checksum_table_parallel_deinit.inc b/storage/spider/mysql-test/spider/feature/include/checksum_table_parallel_deinit.inc
new file mode 100644
index 00000000..52b0625e
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/include/checksum_table_parallel_deinit.inc
@@ -0,0 +1,16 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--let $CHILD2_2_DROP_TABLES= $CHILD2_2_DROP_TABLES_BACKUP
+--let $CHILD2_2_CREATE_TABLES= $CHILD2_2_CREATE_TABLES_BACKUP
+--let $CHILD2_2_SELECT_TABLES= $CHILD2_2_SELECT_TABLES_BACKUP
+--connection master_1
+set session spider_bgs_mode= @old_spider_bgs_mode;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/feature/include/checksum_table_parallel_extended_deinit.inc b/storage/spider/mysql-test/spider/feature/include/checksum_table_parallel_extended_deinit.inc
new file mode 100644
index 00000000..799bd983
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/include/checksum_table_parallel_extended_deinit.inc
@@ -0,0 +1 @@
+--source checksum_table_parallel_deinit.inc
diff --git a/storage/spider/mysql-test/spider/feature/include/checksum_table_parallel_extended_init.inc b/storage/spider/mysql-test/spider/feature/include/checksum_table_parallel_extended_init.inc
new file mode 100644
index 00000000..f17a532d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/include/checksum_table_parallel_extended_init.inc
@@ -0,0 +1,2 @@
+--source checksum_table_parallel_init.inc
+--let $MASTER_1_CHECKSUM_TABLE= CHECKSUM TABLE tbl_a EXTENDED
diff --git a/storage/spider/mysql-test/spider/feature/include/checksum_table_parallel_init.inc b/storage/spider/mysql-test/spider/feature/include/checksum_table_parallel_init.inc
new file mode 100644
index 00000000..7aab8251
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/include/checksum_table_parallel_init.inc
@@ -0,0 +1,53 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+if (!$HAVE_PARTITION)
+{
+  --source checksum_table_parallel_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a"'
+  PARTITION BY KEY(pkey) (
+    PARTITION pt1 COMMENT='srv "s_2_1"',
+    PARTITION pt2 COMMENT='srv "s_2_2"'
+  );
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT pkey FROM tbl_a ORDER BY pkey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%checksum %';
+--let $CHILD2_2_DROP_TABLES_BACKUP= $CHILD2_2_DROP_TABLES
+let $CHILD2_2_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_2_CREATE_TABLES_BACKUP= $CHILD2_2_CREATE_TABLES
+let $CHILD2_2_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+--let $CHILD2_2_SELECT_TABLES_BACKUP= $CHILD2_2_SELECT_TABLES
+let $CHILD2_2_SELECT_TABLES=
+  SELECT pkey FROM tbl_a ORDER BY pkey;
+let $CHILD2_2_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%checksum %';
+--connection master_1
+set @old_spider_bgs_mode= @@spider_bgs_mode;
+set session spider_bgs_mode= 1;
diff --git a/storage/spider/mysql-test/spider/feature/include/checksum_table_parallel_no_opt_deinit.inc b/storage/spider/mysql-test/spider/feature/include/checksum_table_parallel_no_opt_deinit.inc
new file mode 100644
index 00000000..799bd983
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/include/checksum_table_parallel_no_opt_deinit.inc
@@ -0,0 +1 @@
+--source checksum_table_parallel_deinit.inc
diff --git a/storage/spider/mysql-test/spider/feature/include/checksum_table_parallel_no_opt_init.inc b/storage/spider/mysql-test/spider/feature/include/checksum_table_parallel_no_opt_init.inc
new file mode 100644
index 00000000..230b6432
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/include/checksum_table_parallel_no_opt_init.inc
@@ -0,0 +1,2 @@
+--source checksum_table_parallel_init.inc
+--let $MASTER_1_CHECKSUM_TABLE= CHECKSUM TABLE tbl_a
diff --git a/storage/spider/mysql-test/spider/feature/include/checksum_table_parallel_quick_deinit.inc b/storage/spider/mysql-test/spider/feature/include/checksum_table_parallel_quick_deinit.inc
new file mode 100644
index 00000000..799bd983
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/include/checksum_table_parallel_quick_deinit.inc
@@ -0,0 +1 @@
+--source checksum_table_parallel_deinit.inc
diff --git a/storage/spider/mysql-test/spider/feature/include/checksum_table_parallel_quick_init.inc b/storage/spider/mysql-test/spider/feature/include/checksum_table_parallel_quick_init.inc
new file mode 100644
index 00000000..66f6ecbe
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/include/checksum_table_parallel_quick_init.inc
@@ -0,0 +1,2 @@
+--source checksum_table_parallel_init.inc
+--let $MASTER_1_CHECKSUM_TABLE= CHECKSUM TABLE tbl_a QUICK
diff --git a/storage/spider/mysql-test/spider/feature/include/slave_transaction_retry_errors_deinit.inc b/storage/spider/mysql-test/spider/feature/include/slave_transaction_retry_errors_deinit.inc
new file mode 100644
index 00000000..5ac67cdf
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/include/slave_transaction_retry_errors_deinit.inc
@@ -0,0 +1,10 @@
+--connection slave1_1
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../include/deinit_spider.inc
+--source ../t/slave_test_deinit.inc
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/feature/include/slave_transaction_retry_errors_init.inc b/storage/spider/mysql-test/spider/feature/include/slave_transaction_retry_errors_init.inc
new file mode 100644
index 00000000..052d6ebb
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/include/slave_transaction_retry_errors_init.inc
@@ -0,0 +1,10 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--source ../t/slave_test_init.inc
+--connection slave1_1
+--source ../include/init_spider.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/feature/my.cnf b/storage/spider/mysql-test/spider/feature/my.cnf
new file mode 100644
index 00000000..b7f76a63
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/my.cnf
@@ -0,0 +1,2 @@
+!include include/default_mysqld.cnf
+!include my_1_1.cnf
diff --git a/storage/spider/mysql-test/spider/feature/my_1_1.cnf b/storage/spider/mysql-test/spider/feature/my_1_1.cnf
new file mode 100644
index 00000000..5f17295d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/my_1_1.cnf
@@ -0,0 +1,44 @@
+[mysqld.1.1]
+log-bin=                  master-bin
+loose_handlersocket_port=                20000
+loose_handlersocket_port_wr=             20001
+loose_handlersocket_threads=             2
+loose_handlersocket_threads_wr=          1
+loose_handlersocket_support_merge_table= 0
+loose_handlersocket_direct_update_mode=  2
+loose_handlersocket_unlimited_boundary=  65536
+loose_handlersocket_bulk_insert=         0
+loose_handlersocket_bulk_insert_timeout= 0
+loose_handlersocket_general_log=         1
+loose_handlersocket_timeout=             30
+loose_handlersocket_close_table_interval=2
+open_files_limit=                        4096
+loose_partition=                         1
+
+[ENV]
+USE_GEOMETRY_TEST=        1
+USE_FULLTEXT_TEST=        1
+USE_HA_TEST=              1
+USE_GENERAL_LOG=          1
+USE_REPLICATION=          1
+MASTER_1_MYPORT=          @mysqld.1.1.port
+MASTER_1_HSRPORT=         20000
+MASTER_1_HSWPORT=         20001
+MASTER_1_MYSOCK=          @mysqld.1.1.socket
+MASTER_1_ENGINE_TYPE=     Spider
+#MASTER_1_ENGINE_TYPE=     MyISAM
+MASTER_1_ENGINE=          ENGINE=Spider
+MASTER_1_CHARSET=         DEFAULT CHARSET=utf8
+MASTER_1_ENGINE2=         ENGINE=MyISAM
+MASTER_1_CHARSET2=        DEFAULT CHARSET=utf8
+MASTER_1_CHARSET3=        DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci
+
+STR_SEMICOLON=            ;
+
+#The followings are set in include/init_xxx.inc files
+# MASTER_1_COMMENT_2_1
+# MASTER_1_COMMENT2_2_1
+# MASTER_1_COMMENT3_2_1
+# MASTER_1_COMMENT4_2_1
+# MASTER_1_COMMENT5_2_1
+# MASTER_1_COMMENT_P_2_1
diff --git a/storage/spider/mysql-test/spider/feature/my_2_1.cnf b/storage/spider/mysql-test/spider/feature/my_2_1.cnf
new file mode 100644
index 00000000..24161645
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/my_2_1.cnf
@@ -0,0 +1,56 @@
+[mysqld.2.1]
+loose_handlersocket_port=                20002
+loose_handlersocket_port_wr=             20003
+loose_handlersocket_threads=             2
+loose_handlersocket_threads_wr=          1
+loose_handlersocket_support_merge_table= 0
+loose_handlersocket_direct_update_mode=  2
+loose_handlersocket_unlimited_boundary=  65536
+loose_handlersocket_bulk_insert=         0
+loose_handlersocket_bulk_insert_timeout= 0
+loose_handlersocket_general_log=         1
+loose_handlersocket_timeout=             30
+loose_handlersocket_close_table_interval=2
+open_files_limit=                        4096
+
+[ENV]
+USE_CHILD_GROUP2=         1
+OUTPUT_CHILD_GROUP2=      0
+CHILD2_1_MYPORT=          @mysqld.2.1.port
+CHILD2_1_HSRPORT=         20002
+CHILD2_1_HSWPORT=         20003
+CHILD2_1_MYSOCK=          @mysqld.2.1.socket
+CHILD2_1_ENGINE_TYPE=     InnoDB
+CHILD2_1_ENGINE=          ENGINE=InnoDB
+CHILD2_1_CHARSET=         DEFAULT CHARSET=utf8
+CHILD2_1_CHARSET2=        DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci
+CHILD2_1_FT_MYPORT=       @mysqld.2.1.port
+CHILD2_1_FT_MYSOCK=       @mysqld.2.1.socket
+CHILD2_1_FT_ENGINE_TYPE=  MyISAM
+CHILD2_1_FT_ENGINE=       ENGINE=MyISAM
+CHILD2_1_FT_CHARSET=      DEFAULT CHARSET=utf8
+CHILD2_1_GM_MYPORT=       @mysqld.2.1.port
+CHILD2_1_GM_MYSOCK=       @mysqld.2.1.socket
+CHILD2_1_GM_ENGINE_TYPE=  MyISAM
+CHILD2_1_GM_ENGINE=       ENGINE=MyISAM
+CHILD2_1_GM_CHARSET=      DEFAULT CHARSET=utf8
+
+#The followings are set in include/init_xxx.inc files
+# CHILD2_1_DROP_TABLES
+# CHILD2_1_CREATE_TABLES
+# CHILD2_1_SELECT_TABLES
+# CHILD2_1_DROP_TABLES2
+# CHILD2_1_CREATE_TABLES2
+# CHILD2_1_SELECT_TABLES2
+# CHILD2_1_DROP_TABLES3
+# CHILD2_1_CREATE_TABLES3
+# CHILD2_1_SELECT_TABLES3
+# CHILD2_1_DROP_TABLES4
+# CHILD2_1_CREATE_TABLES4
+# CHILD2_1_SELECT_TABLES4
+# CHILD2_1_DROP_TABLES5
+# CHILD2_1_CREATE_TABLES5
+# CHILD2_1_SELECT_TABLES5
+# CHILD2_1_DROP_TABLES6
+# CHILD2_1_CREATE_TABLES6
+# CHILD2_1_SELECT_TABLES6
diff --git a/storage/spider/mysql-test/spider/feature/my_2_2.cnf b/storage/spider/mysql-test/spider/feature/my_2_2.cnf
new file mode 100644
index 00000000..2d3c2a89
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/my_2_2.cnf
@@ -0,0 +1,38 @@
+[mysqld.2.2]
+loose_handlersocket_port=                20004
+loose_handlersocket_port_wr=             20005
+loose_handlersocket_threads=             2
+loose_handlersocket_threads_wr=          1
+loose_handlersocket_support_merge_table= 0
+loose_handlersocket_direct_update_mode=  2
+loose_handlersocket_unlimited_boundary=  65536
+loose_handlersocket_bulk_insert=         0
+loose_handlersocket_bulk_insert_timeout= 0
+loose_handlersocket_general_log=         1
+loose_handlersocket_timeout=             30
+loose_handlersocket_close_table_interval=2
+open_files_limit=                        4096
+
+[ENV]
+CHILD2_2_MYPORT=          @mysqld.2.2.port
+CHILD2_2_HSRPORT=         20004
+CHILD2_2_HSWPORT=         20005
+CHILD2_2_MYSOCK=          @mysqld.2.2.socket
+CHILD2_2_ENGINE_TYPE=     InnoDB
+CHILD2_2_ENGINE=          ENGINE=InnoDB
+CHILD2_2_CHARSET=         DEFAULT CHARSET=utf8
+CHILD2_2_FT_MYPORT=       @mysqld.2.2.port
+CHILD2_2_FT_MYSOCK=       @mysqld.2.2.socket
+CHILD2_2_FT_ENGINE_TYPE=  MyISAM
+CHILD2_2_FT_ENGINE=       ENGINE=MyISAM
+CHILD2_2_FT_CHARSET=      DEFAULT CHARSET=utf8
+CHILD2_2_GM_MYPORT=       @mysqld.2.2.port
+CHILD2_2_GM_MYSOCK=       @mysqld.2.2.socket
+CHILD2_2_GM_ENGINE_TYPE=  MyISAM
+CHILD2_2_GM_ENGINE=       ENGINE=MyISAM
+CHILD2_2_GM_CHARSET=      DEFAULT CHARSET=utf8
+
+#The followings are set in include/init_xxx.inc files
+# CHILD2_2_DROP_TABLES
+# CHILD2_2_CREATE_TABLES
+# CHILD2_2_SELECT_TABLES
diff --git a/storage/spider/mysql-test/spider/feature/my_2_3.cnf b/storage/spider/mysql-test/spider/feature/my_2_3.cnf
new file mode 100644
index 00000000..024da651
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/my_2_3.cnf
@@ -0,0 +1,8 @@
+[mysqld.2.3]
+
+[ENV]
+CHILD2_3_MYPORT=          @mysqld.2.3.port
+CHILD2_3_MYSOCK=          @mysqld.2.3.socket
+CHILD2_3_ENGINE_TYPE=     InnoDB
+CHILD2_3_ENGINE=          ENGINE=InnoDB
+CHILD2_3_CHARSET=         DEFAULT CHARSET=utf8
diff --git a/storage/spider/mysql-test/spider/feature/my_3_1.cnf b/storage/spider/mysql-test/spider/feature/my_3_1.cnf
new file mode 100644
index 00000000..fad21607
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/my_3_1.cnf
@@ -0,0 +1,11 @@
+[mysqld.3.1]
+loose_partition=                         1
+
+[ENV]
+USE_CHILD_GROUP3=         1
+OUTPUT_CHILD_GROUP3=      0
+CHILD3_1_MYPORT=          @mysqld.3.1.port
+CHILD3_1_MYSOCK=          @mysqld.3.1.socket
+CHILD3_1_ENGINE_TYPE=     InnoDB
+CHILD3_1_ENGINE=          ENGINE=InnoDB
+CHILD3_1_CHARSET=         DEFAULT CHARSET=utf8
diff --git a/storage/spider/mysql-test/spider/feature/my_3_2.cnf b/storage/spider/mysql-test/spider/feature/my_3_2.cnf
new file mode 100644
index 00000000..6f027b6f
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/my_3_2.cnf
@@ -0,0 +1,9 @@
+[mysqld.3.2]
+loose_partition=                         1
+
+[ENV]
+CHILD3_2_MYPORT=          @mysqld.3.2.port
+CHILD3_2_MYSOCK=          @mysqld.3.2.socket
+CHILD3_2_ENGINE_TYPE=     InnoDB
+CHILD3_2_ENGINE=          ENGINE=InnoDB
+CHILD3_2_CHARSET=         DEFAULT CHARSET=utf8
diff --git a/storage/spider/mysql-test/spider/feature/my_3_3.cnf b/storage/spider/mysql-test/spider/feature/my_3_3.cnf
new file mode 100644
index 00000000..fbb33694
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/my_3_3.cnf
@@ -0,0 +1,9 @@
+[mysqld.3.3]
+loose_partition=                         1
+
+[ENV]
+CHILD3_3_MYPORT=          @mysqld.3.3.port
+CHILD3_3_MYSOCK=          @mysqld.3.3.socket
+CHILD3_3_ENGINE_TYPE=     InnoDB
+CHILD3_3_ENGINE=          ENGINE=InnoDB
+CHILD3_3_CHARSET=         DEFAULT CHARSET=utf8
diff --git a/storage/spider/mysql-test/spider/feature/my_4_1.cnf b/storage/spider/mysql-test/spider/feature/my_4_1.cnf
new file mode 100644
index 00000000..d1812a48
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/my_4_1.cnf
@@ -0,0 +1,9 @@
+[mysqld.4.1]
+loose_partition=                         1
+
+[ENV]
+SLAVE1_1_MYPORT=          @mysqld.4.1.port
+SLAVE1_1_MYSOCK=          @mysqld.4.1.socket
+SLAVE1_1_ENGINE_TYPE=     MyISAM
+SLAVE1_1_ENGINE=          ENGINE=MyISAM
+SLAVE1_1_CHARSET=         DEFAULT CHARSET=utf8
diff --git a/storage/spider/mysql-test/spider/feature/r/checksum_table_parallel_extended.result b/storage/spider/mysql-test/spider/feature/r/checksum_table_parallel_extended.result
new file mode 100644
index 00000000..34587052
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/r/checksum_table_parallel_extended.result
@@ -0,0 +1,130 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_bgs_mode= @@spider_bgs_mode;
+set session spider_bgs_mode= 1;
+
+this test is for MDEV-16967
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_1_2;
+USE auto_test_remote;
+connection child2_2;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+connection child2_2_2;
+USE auto_test_remote2;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+CHILD2_2_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_a (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_a (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+LOCK TABLE tbl_a WRITE;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+LOCK TABLE tbl_a WRITE;
+connection master_1;
+CHECKSUM TABLE tbl_a EXTENDED;
+connection child2_1_2;
+SELECT SLEEP(1);
+SLEEP(1)
+0
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%checksum %';
+argument
+checksum table `auto_test_remote`.`tbl_a` extended
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%checksum %'
+connection child2_2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%checksum %';
+argument
+checksum table `auto_test_remote2`.`tbl_a` extended
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%checksum %'
+connection child2_1;
+UNLOCK TABLES;
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+1
+3
+5
+7
+9
+11
+13
+15
+17
+19
+21
+23
+25
+27
+29
+connection child2_2;
+UNLOCK TABLES;
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+2
+4
+6
+8
+10
+12
+14
+16
+18
+20
+22
+24
+26
+28
+connection master_1;
+Table	Checksum
+auto_test_local.tbl_a	1061386331
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_bgs_mode= @old_spider_bgs_mode;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/feature/r/checksum_table_parallel_no_opt.result b/storage/spider/mysql-test/spider/feature/r/checksum_table_parallel_no_opt.result
new file mode 100644
index 00000000..4e44bd4c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/r/checksum_table_parallel_no_opt.result
@@ -0,0 +1,128 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_bgs_mode= @@spider_bgs_mode;
+set session spider_bgs_mode= 1;
+
+this test is for MDEV-16967
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_1_2;
+USE auto_test_remote;
+connection child2_2;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+connection child2_2_2;
+USE auto_test_remote2;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+CHILD2_2_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_a (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_a (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+LOCK TABLE tbl_a WRITE;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+LOCK TABLE tbl_a WRITE;
+connection master_1;
+CHECKSUM TABLE tbl_a;
+connection child2_1_2;
+SELECT SLEEP(1);
+SLEEP(1)
+0
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%checksum %';
+argument
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%checksum %'
+connection child2_2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%checksum %';
+argument
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%checksum %'
+connection child2_1;
+UNLOCK TABLES;
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+1
+3
+5
+7
+9
+11
+13
+15
+17
+19
+21
+23
+25
+27
+29
+connection child2_2;
+UNLOCK TABLES;
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+2
+4
+6
+8
+10
+12
+14
+16
+18
+20
+22
+24
+26
+28
+connection master_1;
+Table	Checksum
+auto_test_local.tbl_a	NULL
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_bgs_mode= @old_spider_bgs_mode;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/feature/r/checksum_table_parallel_quick.result b/storage/spider/mysql-test/spider/feature/r/checksum_table_parallel_quick.result
new file mode 100644
index 00000000..b2c55b34
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/r/checksum_table_parallel_quick.result
@@ -0,0 +1,128 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_bgs_mode= @@spider_bgs_mode;
+set session spider_bgs_mode= 1;
+
+this test is for MDEV-16967
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_1_2;
+USE auto_test_remote;
+connection child2_2;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+connection child2_2_2;
+USE auto_test_remote2;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+CHILD2_2_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_a (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_a (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+LOCK TABLE tbl_a WRITE;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+LOCK TABLE tbl_a WRITE;
+connection master_1;
+CHECKSUM TABLE tbl_a QUICK;
+connection child2_1_2;
+SELECT SLEEP(1);
+SLEEP(1)
+0
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%checksum %';
+argument
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%checksum %'
+connection child2_2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%checksum %';
+argument
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%checksum %'
+connection child2_1;
+UNLOCK TABLES;
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+1
+3
+5
+7
+9
+11
+13
+15
+17
+19
+21
+23
+25
+27
+29
+connection child2_2;
+UNLOCK TABLES;
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+2
+4
+6
+8
+10
+12
+14
+16
+18
+20
+22
+24
+26
+28
+connection master_1;
+Table	Checksum
+auto_test_local.tbl_a	NULL
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_bgs_mode= @old_spider_bgs_mode;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/feature/r/slave_transaction_retry_errors.result b/storage/spider/mysql-test/spider/feature/r/slave_transaction_retry_errors.result
new file mode 100644
index 00000000..0a147c03
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/r/slave_transaction_retry_errors.result
@@ -0,0 +1,22 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+for slave1_1
+
+connection slave1_1;
+SHOW VARIABLES LIKE 'slave_transaction_retry_errors';
+Variable_name	Value
+slave_transaction_retry_errors	1158,1159,1160,1161,1205,1213,1429,2013,12701
+connection slave1_1;
+for slave1_1
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/feature/suite.opt b/storage/spider/mysql-test/spider/feature/suite.opt
new file mode 100644
index 00000000..672a3b37
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/suite.opt
@@ -0,0 +1 @@
+--loose-innodb --loose-skip-performance-schema
diff --git a/storage/spider/mysql-test/spider/feature/suite.pm b/storage/spider/mysql-test/spider/feature/suite.pm
new file mode 100644
index 00000000..171fa6c4
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/suite.pm
@@ -0,0 +1,11 @@
+package My::Suite::Spider;
+
+@ISA = qw(My::Suite);
+
+return "No Spider engine" unless $ENV{HA_SPIDER_SO};
+return "Not run for embedded server" if $::opt_embedded_server;
+
+sub is_default { 1 }
+
+bless { };
+
diff --git a/storage/spider/mysql-test/spider/feature/t/checksum_table_parallel.inc b/storage/spider/mysql-test/spider/feature/t/checksum_table_parallel.inc
new file mode 100644
index 00000000..13e5053d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/t/checksum_table_parallel.inc
@@ -0,0 +1,107 @@
+--echo
+--echo this test is for MDEV-16967
+--echo
+--echo drop and create databases
+
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection child2_1
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+--connection child2_1_2
+USE auto_test_remote;
+
+--connection child2_2
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+--connection child2_2_2
+USE auto_test_remote2;
+--enable_warnings
+
+--echo
+--echo create table and insert
+
+--connection child2_1
+--disable_query_log
+echo CHILD2_1_CREATE_TABLES;
+eval $CHILD2_1_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection child2_2
+--disable_query_log
+echo CHILD2_2_CREATE_TABLES;
+eval $CHILD2_2_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_a (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_a (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+
+--echo
+--echo select test 1
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+LOCK TABLE tbl_a WRITE;
+
+--connection child2_2
+TRUNCATE TABLE mysql.general_log;
+LOCK TABLE tbl_a WRITE;
+
+--connection master_1
+send_eval $MASTER_1_CHECKSUM_TABLE;
+
+--connection child2_1_2
+SELECT SLEEP(1);
+eval $CHILD2_1_SELECT_ARGUMENT1;
+
+--connection child2_2_2
+eval $CHILD2_2_SELECT_ARGUMENT1;
+
+--connection child2_1
+UNLOCK TABLES;
+eval $CHILD2_1_SELECT_TABLES;
+
+--connection child2_2
+UNLOCK TABLES;
+eval $CHILD2_2_SELECT_TABLES;
+
+--connection master_1
+reap;
+
+--echo
+--echo deinit
+--disable_warnings
+
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection child2_1
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+
+--connection child2_2
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/feature/t/checksum_table_parallel_extended.cnf b/storage/spider/mysql-test/spider/feature/t/checksum_table_parallel_extended.cnf
new file mode 100644
index 00000000..e0ffb99c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/t/checksum_table_parallel_extended.cnf
@@ -0,0 +1,4 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
+!include ../my_2_2.cnf
diff --git a/storage/spider/mysql-test/spider/feature/t/checksum_table_parallel_extended.test b/storage/spider/mysql-test/spider/feature/t/checksum_table_parallel_extended.test
new file mode 100644
index 00000000..871e1e86
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/t/checksum_table_parallel_extended.test
@@ -0,0 +1,5 @@
+--source ../include/checksum_table_parallel_extended_init.inc
+--source checksum_table_parallel.inc
+--source ../include/checksum_table_parallel_extended_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/feature/t/checksum_table_parallel_no_opt.cnf b/storage/spider/mysql-test/spider/feature/t/checksum_table_parallel_no_opt.cnf
new file mode 100644
index 00000000..e0ffb99c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/t/checksum_table_parallel_no_opt.cnf
@@ -0,0 +1,4 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
+!include ../my_2_2.cnf
diff --git a/storage/spider/mysql-test/spider/feature/t/checksum_table_parallel_no_opt.test b/storage/spider/mysql-test/spider/feature/t/checksum_table_parallel_no_opt.test
new file mode 100644
index 00000000..0352d598
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/t/checksum_table_parallel_no_opt.test
@@ -0,0 +1,5 @@
+--source ../include/checksum_table_parallel_no_opt_init.inc
+--source checksum_table_parallel.inc
+--source ../include/checksum_table_parallel_no_opt_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/feature/t/checksum_table_parallel_quick.cnf b/storage/spider/mysql-test/spider/feature/t/checksum_table_parallel_quick.cnf
new file mode 100644
index 00000000..e0ffb99c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/t/checksum_table_parallel_quick.cnf
@@ -0,0 +1,4 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
+!include ../my_2_2.cnf
diff --git a/storage/spider/mysql-test/spider/feature/t/checksum_table_parallel_quick.test b/storage/spider/mysql-test/spider/feature/t/checksum_table_parallel_quick.test
new file mode 100644
index 00000000..f08f782e
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/t/checksum_table_parallel_quick.test
@@ -0,0 +1,5 @@
+--source ../include/checksum_table_parallel_quick_init.inc
+--source checksum_table_parallel.inc
+--source ../include/checksum_table_parallel_quick_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/feature/t/slave_transaction_retry_errors.cnf b/storage/spider/mysql-test/spider/feature/t/slave_transaction_retry_errors.cnf
new file mode 100644
index 00000000..45019d6c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/t/slave_transaction_retry_errors.cnf
@@ -0,0 +1,4 @@
+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf
+!include ../my_4_1.cnf
diff --git a/storage/spider/mysql-test/spider/feature/t/slave_transaction_retry_errors.test b/storage/spider/mysql-test/spider/feature/t/slave_transaction_retry_errors.test
new file mode 100644
index 00000000..436bc3fb
--- /dev/null
+++ b/storage/spider/mysql-test/spider/feature/t/slave_transaction_retry_errors.test
@@ -0,0 +1,9 @@
+--source ../include/slave_transaction_retry_errors_init.inc
+--echo
+
+--connection slave1_1
+SHOW VARIABLES LIKE 'slave_transaction_retry_errors';
+
+--source ../include/slave_transaction_retry_errors_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/handler/include/deinit_child2_1.inc b/storage/spider/mysql-test/spider/handler/include/deinit_child2_1.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/deinit_child2_1.inc
diff --git a/storage/spider/mysql-test/spider/handler/include/deinit_child2_2.inc b/storage/spider/mysql-test/spider/handler/include/deinit_child2_2.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/deinit_child2_2.inc
diff --git a/storage/spider/mysql-test/spider/handler/include/deinit_child2_3.inc b/storage/spider/mysql-test/spider/handler/include/deinit_child2_3.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/deinit_child2_3.inc
diff --git a/storage/spider/mysql-test/spider/handler/include/deinit_child3_1.inc b/storage/spider/mysql-test/spider/handler/include/deinit_child3_1.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/deinit_child3_1.inc
diff --git a/storage/spider/mysql-test/spider/handler/include/deinit_child3_2.inc b/storage/spider/mysql-test/spider/handler/include/deinit_child3_2.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/deinit_child3_2.inc
diff --git a/storage/spider/mysql-test/spider/handler/include/deinit_child3_3.inc b/storage/spider/mysql-test/spider/handler/include/deinit_child3_3.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/deinit_child3_3.inc
diff --git a/storage/spider/mysql-test/spider/handler/include/deinit_master_1.inc b/storage/spider/mysql-test/spider/handler/include/deinit_master_1.inc
new file mode 100644
index 00000000..c19e376d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/deinit_master_1.inc
@@ -0,0 +1 @@
+--source ../../include/deinit_spider.inc
diff --git a/storage/spider/mysql-test/spider/handler/include/deinit_slave1_1.inc b/storage/spider/mysql-test/spider/handler/include/deinit_slave1_1.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/deinit_slave1_1.inc
diff --git a/storage/spider/mysql-test/spider/handler/include/ha_deinit_child2_1.inc b/storage/spider/mysql-test/spider/handler/include/ha_deinit_child2_1.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/ha_deinit_child2_1.inc
diff --git a/storage/spider/mysql-test/spider/handler/include/ha_deinit_child2_2.inc b/storage/spider/mysql-test/spider/handler/include/ha_deinit_child2_2.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/ha_deinit_child2_2.inc
diff --git a/storage/spider/mysql-test/spider/handler/include/ha_deinit_child2_3.inc b/storage/spider/mysql-test/spider/handler/include/ha_deinit_child2_3.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/ha_deinit_child2_3.inc
diff --git a/storage/spider/mysql-test/spider/handler/include/ha_deinit_child3_1.inc b/storage/spider/mysql-test/spider/handler/include/ha_deinit_child3_1.inc
new file mode 100644
index 00000000..c19e376d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/ha_deinit_child3_1.inc
@@ -0,0 +1 @@
+--source ../../include/deinit_spider.inc
diff --git a/storage/spider/mysql-test/spider/handler/include/ha_deinit_child3_2.inc b/storage/spider/mysql-test/spider/handler/include/ha_deinit_child3_2.inc
new file mode 100644
index 00000000..c19e376d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/ha_deinit_child3_2.inc
@@ -0,0 +1 @@
+--source ../../include/deinit_spider.inc
diff --git a/storage/spider/mysql-test/spider/handler/include/ha_deinit_child3_3.inc b/storage/spider/mysql-test/spider/handler/include/ha_deinit_child3_3.inc
new file mode 100644
index 00000000..c19e376d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/ha_deinit_child3_3.inc
@@ -0,0 +1 @@
+--source ../../include/deinit_spider.inc
diff --git a/storage/spider/mysql-test/spider/handler/include/ha_deinit_master_1.inc b/storage/spider/mysql-test/spider/handler/include/ha_deinit_master_1.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/ha_deinit_master_1.inc
diff --git a/storage/spider/mysql-test/spider/handler/include/ha_init_child2_1.inc b/storage/spider/mysql-test/spider/handler/include/ha_init_child2_1.inc
new file mode 100644
index 00000000..26848294
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/ha_init_child2_1.inc
@@ -0,0 +1,8 @@
+let $CHILD2_1_HA_AS_DROP_TABLES=
+  $CHILD2_1_DROP_TABLES;
+let $CHILD2_1_HA_AS_CREATE_TABLES=
+  $CHILD2_1_CREATE_TABLES;
+let $CHILD2_1_HA_AS_DROP_TABLES2=
+  $CHILD2_1_DROP_TABLES2;
+let $CHILD2_1_HA_AS_CREATE_TABLES2=
+  $CHILD2_1_CREATE_TABLES2;
diff --git a/storage/spider/mysql-test/spider/handler/include/ha_init_child2_2.inc b/storage/spider/mysql-test/spider/handler/include/ha_init_child2_2.inc
new file mode 100644
index 00000000..205eaa6f
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/ha_init_child2_2.inc
@@ -0,0 +1,4 @@
+let $CHILD2_2_HA_DROP_TABLES=
+  $CHILD2_2_DROP_TABLES;
+let $CHILD2_2_HA_CREATE_TABLES=
+  $CHILD2_2_CREATE_TABLES;
diff --git a/storage/spider/mysql-test/spider/handler/include/ha_init_child2_3.inc b/storage/spider/mysql-test/spider/handler/include/ha_init_child2_3.inc
new file mode 100644
index 00000000..55cb8583
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/ha_init_child2_3.inc
@@ -0,0 +1,4 @@
+let $CHILD2_3_HA_DROP_TABLES=
+  $CHILD2_3_DROP_TABLES;
+let $CHILD2_3_HA_CREATE_TABLES=
+  $CHILD2_3_CREATE_TABLES;
diff --git a/storage/spider/mysql-test/spider/handler/include/ha_init_child3_1.inc b/storage/spider/mysql-test/spider/handler/include/ha_init_child3_1.inc
new file mode 100644
index 00000000..3ac4f97b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/ha_init_child3_1.inc
@@ -0,0 +1,140 @@
+--let $CHILD3_1_ENGINE_TYPE=Spider
+--let $CHILD3_1_ENGINE=ENGINE=Spider
+--source ../../include/init_spider.inc
+eval INSERT INTO mysql.spider_link_mon_servers
+(db_name, table_name, link_id, sid, server, scheme, host, port, socket,
+ username, password, ssl_ca, ssl_capath, ssl_cert, ssl_cipher, ssl_key,
+ ssl_verify_server_cert, default_file, default_group) VALUES
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_1_SERVER_ID, 's_3_1', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_2_SERVER_ID, 's_3_2', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_3_SERVER_ID, 's_3_3', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL);
+let $CHILD3_1_CHECK_LINK_STATUS=
+  SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+  ORDER BY db_name, table_name, link_id;
+let $CHILD3_1_CHECK_LINK_FAILED_LOG=
+  SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+let $CHILD3_1_SET_RECOVERY_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 2"';
+let $CHILD3_1_SET_OK_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 1"';
+let $CHILD3_1_SET_OK_STATUS_AS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+  database "auto_test_remote auto_test_remote2", lst "1 0"';
+
+let $CHILD3_1_DROP_TABLES_HA_2_1=
+  DROP TABLE IF EXISTS ta_l;
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $CHILD3_1_CREATE_TABLES_HA_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_1_ENGINE $CHILD3_1_CHARSET
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $CHILD3_1_CREATE_TABLES_HA_AS_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_1_ENGINE $CHILD3_1_CHARSET
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $CHILD3_1_CREATE_TABLES_HA_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_1_ENGINE $CHILD3_1_CHARSET
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $CHILD3_1_CREATE_TABLES_HA_AS_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_1_ENGINE $CHILD3_1_CHARSET
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+let $CHILD3_1_DROP_TABLES_HA_P_2_1=
+  DROP TABLE IF EXISTS ta_l2;
+let $CHILD3_1_CREATE_TABLES_HA_P_2_1=
+  CREATE TABLE ta_l2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD3_1_ENGINE $CHILD3_1_CHARSET
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $CHILD3_1_CREATE_TABLES_HA_AS_P_2_1=
+  CREATE TABLE ta_l2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD3_1_ENGINE $CHILD3_1_CHARSET
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $CHILD3_1_SET_RECOVERY_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 2"'
+  );
+let $CHILD3_1_SET_OK_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 1"'
+  );
+let $CHILD3_1_SET_OK_STATUS_AS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "1 0"'
+  );
diff --git a/storage/spider/mysql-test/spider/handler/include/ha_init_child3_2.inc b/storage/spider/mysql-test/spider/handler/include/ha_init_child3_2.inc
new file mode 100644
index 00000000..cf47099f
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/ha_init_child3_2.inc
@@ -0,0 +1,140 @@
+--let $CHILD3_2_ENGINE_TYPE=Spider
+--let $CHILD3_2_ENGINE=ENGINE=Spider
+--source ../../include/init_spider.inc
+eval INSERT INTO mysql.spider_link_mon_servers
+(db_name, table_name, link_id, sid, server, scheme, host, port, socket,
+ username, password, ssl_ca, ssl_capath, ssl_cert, ssl_cipher, ssl_key,
+ ssl_verify_server_cert, default_file, default_group) VALUES
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_1_SERVER_ID, 's_3_1', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_2_SERVER_ID, 's_3_2', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_3_SERVER_ID, 's_3_3', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL);
+let $CHILD3_2_CHECK_LINK_STATUS=
+  SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+  ORDER BY db_name, table_name, link_id;
+let $CHILD3_2_CHECK_LINK_FAILED_LOG=
+  SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+let $CHILD3_2_SET_RECOVERY_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 2"';
+let $CHILD3_2_SET_OK_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 1"';
+let $CHILD3_2_SET_OK_STATUS_AS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+  database "auto_test_remote auto_test_remote2", lst "1 0"';
+
+let $CHILD3_2_DROP_TABLES_HA_2_1=
+  DROP TABLE IF EXISTS ta_l;
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $CHILD3_2_CREATE_TABLES_HA_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_2_ENGINE $CHILD3_2_CHARSET
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $CHILD3_2_CREATE_TABLES_HA_AS_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_2_ENGINE $CHILD3_2_CHARSET
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $CHILD3_2_CREATE_TABLES_HA_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_2_ENGINE $CHILD3_2_CHARSET
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $CHILD3_2_CREATE_TABLES_HA_AS_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_2_ENGINE $CHILD3_2_CHARSET
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+let $CHILD3_2_DROP_TABLES_HA_P_2_1=
+  DROP TABLE IF EXISTS ta_l2;
+let $CHILD3_2_CREATE_TABLES_HA_P_2_1=
+  CREATE TABLE ta_l2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD3_2_ENGINE $CHILD3_2_CHARSET
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $CHILD3_2_CREATE_TABLES_HA_AS_P_2_1=
+  CREATE TABLE ta_l2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD3_2_ENGINE $CHILD3_2_CHARSET
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $CHILD3_2_SET_RECOVERY_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 2"'
+  );
+let $CHILD3_2_SET_OK_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 1"'
+  );
+let $CHILD3_2_SET_OK_STATUS_AS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "1 0"'
+  );
diff --git a/storage/spider/mysql-test/spider/handler/include/ha_init_child3_3.inc b/storage/spider/mysql-test/spider/handler/include/ha_init_child3_3.inc
new file mode 100644
index 00000000..094d26b6
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/ha_init_child3_3.inc
@@ -0,0 +1,140 @@
+--let $CHILD3_3_ENGINE_TYPE=Spider
+--let $CHILD3_3_ENGINE=ENGINE=Spider
+--source ../../include/init_spider.inc
+eval INSERT INTO mysql.spider_link_mon_servers
+(db_name, table_name, link_id, sid, server, scheme, host, port, socket,
+ username, password, ssl_ca, ssl_capath, ssl_cert, ssl_cipher, ssl_key,
+ ssl_verify_server_cert, default_file, default_group) VALUES
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_1_SERVER_ID, 's_3_1', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_2_SERVER_ID, 's_3_2', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_3_SERVER_ID, 's_3_3', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL);
+let $CHILD3_3_CHECK_LINK_STATUS=
+  SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+  ORDER BY db_name, table_name, link_id;
+let $CHILD3_3_CHECK_LINK_FAILED_LOG=
+  SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+let $CHILD3_3_SET_RECOVERY_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 2"';
+let $CHILD3_3_SET_OK_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 1"';
+let $CHILD3_3_SET_OK_STATUS_AS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+  database "auto_test_remote auto_test_remote2", lst "1 0"';
+
+let $CHILD3_3_DROP_TABLES_HA_2_1=
+  DROP TABLE IF EXISTS ta_l;
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $CHILD3_3_CREATE_TABLES_HA_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_3_ENGINE $CHILD3_3_CHARSET
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $CHILD3_3_CREATE_TABLES_HA_AS_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_3_ENGINE $CHILD3_3_CHARSET
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $CHILD3_3_CREATE_TABLES_HA_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_3_ENGINE $CHILD3_3_CHARSET
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $CHILD3_3_CREATE_TABLES_HA_AS_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_3_ENGINE $CHILD3_3_CHARSET
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+let $CHILD3_3_DROP_TABLES_HA_P_2_1=
+  DROP TABLE IF EXISTS ta_l2;
+let $CHILD3_3_CREATE_TABLES_HA_P_2_1=
+  CREATE TABLE ta_l2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD3_3_ENGINE $CHILD3_3_CHARSET
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $CHILD3_3_CREATE_TABLES_HA_AS_P_2_1=
+  CREATE TABLE ta_l2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD3_3_ENGINE $CHILD3_3_CHARSET
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $CHILD3_3_SET_RECOVERY_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 2"'
+  );
+let $CHILD3_3_SET_OK_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 1"'
+  );
+let $CHILD3_3_SET_OK_STATUS_AS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "1 0"'
+  );
diff --git a/storage/spider/mysql-test/spider/handler/include/ha_init_master_1.inc b/storage/spider/mysql-test/spider/handler/include/ha_init_master_1.inc
new file mode 100644
index 00000000..78797d80
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/ha_init_master_1.inc
@@ -0,0 +1,105 @@
+eval INSERT INTO mysql.spider_link_mon_servers
+(db_name, table_name, link_id, sid, server, scheme, host, port, socket,
+ username, password, ssl_ca, ssl_capath, ssl_cert, ssl_cipher, ssl_key,
+ ssl_verify_server_cert, default_file, default_group) VALUES
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_1_SERVER_ID, 's_3_1', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_2_SERVER_ID, 's_3_2', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_3_SERVER_ID, 's_3_3', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL);
+let $MASTER_1_CHECK_LINK_STATUS=
+  SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+  ORDER BY db_name, table_name, link_id;
+let $MASTER_1_CHECK_LINK_FAILED_LOG=
+  SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+let $MASTER_1_SET_RECOVERY_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 2"';
+let $MASTER_1_SET_OK_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 1"';
+let $MASTER_1_SET_OK_STATUS_AS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+  database "auto_test_remote auto_test_remote2", lst "1 0"';
+let $MASTER_1_COPY_TABLES_2_1=
+  SELECT spider_copy_tables('ta_l', '0', '1');
+
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT_HA_2_1=
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $MASTER_1_COMMENT_HA_AS_2_1=
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT_HA_2_1=
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $MASTER_1_COMMENT_HA_AS_2_1=
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+let $MASTER_1_COMMENT_HA_P_2_1=
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $MASTER_1_COMMENT_HA_AS_P_2_1=
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $MASTER_1_SET_RECOVERY_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 2"'
+  );
+let $MASTER_1_SET_OK_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 1"'
+  );
+let $MASTER_1_SET_OK_STATUS_AS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "1 0"'
+  );
+let $MASTER_1_COPY_TABLES_P_2_1=
+  SELECT spider_copy_tables('ta_l2#P#pt2', '0', '1');
+let $MASTER_1_CHECK_HA_STATUS=
+  SHOW STATUS LIKE 'Spider_mon_table_cache_version%';
+let $MASTER_1_CHANGE_HA_MON=
+  SELECT spider_flush_table_mon_cache();
diff --git a/storage/spider/mysql-test/spider/handler/include/hs_deinit_child2_1.inc b/storage/spider/mysql-test/spider/handler/include/hs_deinit_child2_1.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/hs_deinit_child2_1.inc
diff --git a/storage/spider/mysql-test/spider/handler/include/hs_deinit_child2_2.inc b/storage/spider/mysql-test/spider/handler/include/hs_deinit_child2_2.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/hs_deinit_child2_2.inc
diff --git a/storage/spider/mysql-test/spider/handler/include/hs_deinit_child2_3.inc b/storage/spider/mysql-test/spider/handler/include/hs_deinit_child2_3.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/hs_deinit_child2_3.inc
diff --git a/storage/spider/mysql-test/spider/handler/include/hs_deinit_master_1.inc b/storage/spider/mysql-test/spider/handler/include/hs_deinit_master_1.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/hs_deinit_master_1.inc
diff --git a/storage/spider/mysql-test/spider/handler/include/hs_init_child2_1.inc b/storage/spider/mysql-test/spider/handler/include/hs_init_child2_1.inc
new file mode 100644
index 00000000..ee006858
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/hs_init_child2_1.inc
@@ -0,0 +1,24 @@
+let $CHILD2_1_HS_DROP_TABLES=
+  DROP TABLE IF EXISTS hs_r;
+let $CHILD2_1_HS_CREATE_TABLES=
+  CREATE TABLE hs_r (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    d INT DEFAULT 11,
+    PRIMARY KEY(a)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_HS_SELECT_TABLES=
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s'), d FROM hs_r ORDER BY a;
+let $CHILD2_1_HS_DROP_TABLES2=
+  DROP TABLE IF EXISTS hs_r2;
+let $CHILD2_1_HS_CREATE_TABLES2=
+  CREATE TABLE hs_r2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    d INT DEFAULT 11,
+    PRIMARY KEY(a)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_HS_SELECT_TABLES2=
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s'), d FROM hs_r2 ORDER BY a;
diff --git a/storage/spider/mysql-test/spider/handler/include/hs_init_child2_2.inc b/storage/spider/mysql-test/spider/handler/include/hs_init_child2_2.inc
new file mode 100644
index 00000000..1c5a02d5
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/hs_init_child2_2.inc
@@ -0,0 +1,12 @@
+let $CHILD2_2_HS_DROP_TABLES=
+  DROP TABLE IF EXISTS hs_r3;
+let $CHILD2_2_HS_CREATE_TABLES=
+  CREATE TABLE hs_r3 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    d INT DEFAULT 11,
+    PRIMARY KEY(a)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+let $CHILD2_2_HS_SELECT_TABLES=
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s'), d FROM hs_r3 ORDER BY a;
diff --git a/storage/spider/mysql-test/spider/handler/include/hs_init_child2_3.inc b/storage/spider/mysql-test/spider/handler/include/hs_init_child2_3.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/hs_init_child2_3.inc
diff --git a/storage/spider/mysql-test/spider/handler/include/hs_init_master_1.inc b/storage/spider/mysql-test/spider/handler/include/hs_init_master_1.inc
new file mode 100644
index 00000000..0ff5e2a1
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/hs_init_master_1.inc
@@ -0,0 +1,12 @@
+let $MASTER_1_HS_COMMENT_TMP=
+  COMMENT='';
+let $MASTER_1_HS_COMMENT_2_1=
+  COMMENT='srv "s_2_1", table "hs_r", uhr "1", uhw "1", hrp "$CHILD2_1_HSRPORT", hwp "$CHILD2_1_HSWPORT"';
+let $MASTER_1_HS_COMMENT_P_2_1=
+  COMMENT='uhr "1", uhw "1"'
+  PARTITION BY RANGE(a) (
+    PARTITION pt1 VALUES LESS THAN (4)
+    COMMENT='srv "s_2_1", table "hs_r2", hrp "$CHILD2_1_HSRPORT", hwp "$CHILD2_1_HSWPORT"',
+    PARTITION pt2 VALUES LESS THAN MAXVALUE
+    COMMENT='srv "s_2_2", table "hs_r3", hrp "$CHILD2_2_HSRPORT", hwp "$CHILD2_2_HSWPORT"'
+  );
diff --git a/storage/spider/mysql-test/spider/handler/include/init_child2_1.inc b/storage/spider/mysql-test/spider/handler/include/init_child2_1.inc
new file mode 100644
index 00000000..b8b8ceb9
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/init_child2_1.inc
@@ -0,0 +1,176 @@
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS ta_r;
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE ta_r (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a),
+    KEY idx1(b)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_SELECT_TABLES=
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_r ORDER BY a;
+let $CHILD2_1_DROP_TABLES2=
+  DROP TABLE IF EXISTS ta_r2;
+let $CHILD2_1_CREATE_TABLES2=
+  CREATE TABLE ta_r2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_SELECT_TABLES2=
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_r2 ORDER BY a;
+let $CHILD2_1_DROP_TABLES3=
+  DROP TABLE IF EXISTS ta_r_no_idx;
+let $CHILD2_1_CREATE_TABLES3=
+  CREATE TABLE ta_r_no_idx (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_SELECT_TABLES3=
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_r_no_idx ORDER BY a;
+let $CHILD2_1_DROP_TABLES4=
+  DROP TABLE IF EXISTS ta_r_auto_inc;
+let $CHILD2_1_CREATE_TABLES4=
+  CREATE TABLE ta_r_auto_inc (
+    a INT AUTO_INCREMENT,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_SELECT_TABLES4=
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_r_auto_inc
+  ORDER BY a;
+let $CHILD2_1_DROP_TABLES5=
+  DROP TABLE IF EXISTS ta_r_int;
+let $CHILD2_1_CREATE_TABLES5=
+  CREATE TABLE ta_r_int (
+    a INT AUTO_INCREMENT,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    PRIMARY KEY(a),
+    KEY idx1(b),
+    KEY idx2(c)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_SELECT_TABLES5=
+  SELECT a, b, c FROM ta_r_int ORDER BY a;
+let $CHILD2_1_DROP_TABLES6=
+  DROP TABLE IF EXISTS ta_r_3;
+let $CHILD2_1_CREATE_TABLES6=
+  CREATE TABLE ta_r_3 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_SELECT_TABLES6=
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_r_3 ORDER BY a;
+let $CHILD2_1_DROP_FT_TABLES=
+  DROP TABLE IF EXISTS ft_r;
+let $CHILD2_1_CREATE_FT_TABLES=
+  CREATE TABLE ft_r (
+    a INT DEFAULT 0,
+    b TEXT,
+    c TEXT,
+    d TEXT,
+    PRIMARY KEY(a),
+    FULLTEXT INDEX ft_idx1(b),
+    FULLTEXT INDEX ft_idx2(c)
+  ) $CHILD2_1_FT_ENGINE $CHILD2_1_FT_CHARSET;
+let $CHILD2_1_SELECT_FT_TABLES=
+  SELECT a, b, c, d FROM ft_r ORDER BY a;
+let $CHILD2_1_DROP_FT_TABLES2=
+  DROP TABLE IF EXISTS ft_r2;
+let $CHILD2_1_CREATE_FT_TABLES2=
+  CREATE TABLE ft_r2 (
+    a INT DEFAULT 0,
+    b TEXT,
+    c TEXT,
+    d TEXT,
+    PRIMARY KEY(a),
+    FULLTEXT INDEX ft_idx1(b),
+    FULLTEXT INDEX ft_idx2(c)
+  ) $CHILD2_1_FT_ENGINE $CHILD2_1_FT_CHARSET;
+let $CHILD2_1_SELECT_FT_TABLES2=
+  SELECT a, b, c, d FROM ft_r2 ORDER BY a;
+let $CHILD2_1_DROP_GM_TABLES=
+  DROP TABLE IF EXISTS gm_r;
+let $CHILD2_1_CREATE_GM_TABLES=
+  CREATE TABLE gm_r (
+    a INT DEFAULT 0,
+    b GEOMETRY NOT NULL,
+    c GEOMETRY NOT NULL,
+    PRIMARY KEY(a),
+    SPATIAL INDEX sp_idx1(b),
+    SPATIAL INDEX sp_idx2(c)
+  ) $CHILD2_1_GM_ENGINE $CHILD2_1_GM_CHARSET;
+let $CHILD2_1_SELECT_GM_TABLES=
+  SELECT a, b, c FROM gm_r ORDER BY a;
+let $CHILD2_1_DROP_GM_TABLES2=
+  DROP TABLE IF EXISTS gm_r2;
+let $CHILD2_1_CREATE_GM_TABLES2=
+  CREATE TABLE gm_r2 (
+    a INT DEFAULT 0,
+    b GEOMETRY NOT NULL,
+    c GEOMETRY NOT NULL,
+    PRIMARY KEY(a),
+    SPATIAL INDEX sp_idx1(b),
+    SPATIAL INDEX sp_idx2(c)
+  ) $CHILD2_1_GM_ENGINE $CHILD2_1_GM_CHARSET;
+let $CHILD2_1_SELECT_GM_TABLES2=
+  SELECT a, b, c FROM gm_r2 ORDER BY a;
+let $CHILD2_1_DROP_LOCK_TABLES1=
+  DROP TABLE IF EXISTS t1_1;
+let $CHILD2_1_CREATE_LOCK_TABLES1=
+  CREATE TABLE t1_1 (
+    id int(11) NOT NULL,
+    PRIMARY KEY (id)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_DROP_LOCK_TABLES2=
+  DROP TABLE IF EXISTS t2_2;
+let $CHILD2_1_CREATE_LOCK_TABLES2=
+  CREATE TABLE t2_2 (
+    id int(11) NOT NULL,
+    PRIMARY KEY (id)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_DROP_INCREMENT_TABLES1=
+  DROP TABLE IF EXISTS t1_1;
+let $CHILD2_1_CREATE_INCREMENT_TABLES1=
+  CREATE TABLE t1_1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_SELECT_INCREMENT_TABLES1=
+  SELECT id FROM t1_1 ORDER BY id;
+let $CHILD2_1_DROP_TEXT_PK_TABLES1=
+  DROP TABLE IF EXISTS t1;
+let $CHILD2_1_CREATE_TEXT_PK_TABLES1=
+  CREATE TABLE t1 (
+    a VARCHAR(255),
+    PRIMARY KEY (a)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET2;
+let $CHILD2_1_SELECT_TEXT_PK_TABLES1=
+  SELECT a FROM t1 ORDER BY a;
+let $CHILD2_1_DROP_TEXT_KEY_TABLES1=
+  DROP TABLE IF EXISTS t1;
+let $CHILD2_1_CREATE_TEXT_KEY_TABLES1=
+  CREATE TABLE t1 (
+    a VARCHAR(255),
+    b VARCHAR(255),
+    c VARCHAR(255),
+    KEY idx1(a,b),
+    KEY idx2(b),
+    PRIMARY KEY(c)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_SELECT_TEXT_KEY_TABLES1=
+  SELECT a, b FROM t1 ORDER BY a, b;
+let $CHILD2_1_AUTO_INCREMENT_INCREMENT1=
+  SET GLOBAL AUTO_INCREMENT_INCREMENT = 1;
+let $CHILD2_1_AUTO_INCREMENT_INCREMENT2=
+  SET GLOBAL AUTO_INCREMENT_INCREMENT = 4;
+let $CHILD2_1_AUTO_INCREMENT_OFFSET1=
+  SET GLOBAL AUTO_INCREMENT_OFFSET = 1;
+let $CHILD2_1_AUTO_INCREMENT_OFFSET2=
+  SET GLOBAL AUTO_INCREMENT_OFFSET = 2;
diff --git a/storage/spider/mysql-test/spider/handler/include/init_child2_2.inc b/storage/spider/mysql-test/spider/handler/include/init_child2_2.inc
new file mode 100644
index 00000000..9f0b5e2f
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/init_child2_2.inc
@@ -0,0 +1,80 @@
+let $CHILD2_2_DROP_TABLES=
+  DROP TABLE IF EXISTS ta_r3;
+let $CHILD2_2_CREATE_TABLES=
+  CREATE TABLE ta_r3 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+let $CHILD2_2_DROP_TABLES5=
+  DROP TABLE IF EXISTS ta_r_int;
+let $CHILD2_2_CREATE_TABLES5=
+  CREATE TABLE ta_r_int (
+    a INT AUTO_INCREMENT,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    PRIMARY KEY(a),
+    KEY idx1(b),
+    KEY idx2(c)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+let $CHILD2_2_SELECT_TABLES=
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_r3 ORDER BY a;
+let $CHILD2_2_DROP_FT_TABLES=
+  DROP TABLE IF EXISTS ft_r3;
+let $CHILD2_2_CREATE_FT_TABLES=
+  CREATE TABLE ft_r3 (
+    a INT DEFAULT 0,
+    b TEXT,
+    c TEXT,
+    d TEXT,
+    PRIMARY KEY(a),
+    FULLTEXT INDEX ft_idx1(b),
+    FULLTEXT INDEX ft_idx2(c)
+  ) $CHILD2_2_FT_ENGINE $CHILD2_2_FT_CHARSET;
+let $CHILD2_2_SELECT_FT_TABLES=
+  SELECT a, b, c, d FROM ft_r3 ORDER BY a;
+let $CHILD2_2_DROP_GM_TABLES=
+  DROP TABLE IF EXISTS gm_r3;
+let $CHILD2_2_CREATE_GM_TABLES=
+  CREATE TABLE gm_r3 (
+    a INT DEFAULT 0,
+    b GEOMETRY NOT NULL,
+    c GEOMETRY NOT NULL,
+    PRIMARY KEY(a),
+    SPATIAL INDEX sp_idx1(b),
+    SPATIAL INDEX sp_idx2(c)
+  ) $CHILD2_2_GM_ENGINE $CHILD2_2_GM_CHARSET;
+let $CHILD2_2_SELECT_GM_TABLES=
+  SELECT a, b, c FROM gm_r3 ORDER BY a;
+let $CHILD2_2_DROP_LOCK_TABLES1=
+  DROP TABLE IF EXISTS t1_2;
+let $CHILD2_2_CREATE_LOCK_TABLES1=
+  CREATE TABLE t1_2 (
+    id int(11) NOT NULL,
+    PRIMARY KEY (id)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+let $CHILD2_2_DROP_LOCK_TABLES2=
+  DROP TABLE IF EXISTS t2_1;
+let $CHILD2_2_CREATE_LOCK_TABLES2=
+  CREATE TABLE t2_1 (
+    id int(11) NOT NULL,
+    PRIMARY KEY (id)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+let $CHILD2_2_DROP_INCREMENT_TABLES1=
+  DROP TABLE IF EXISTS t1_2;
+let $CHILD2_2_CREATE_INCREMENT_TABLES1=
+  CREATE TABLE t1_2 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+let $CHILD2_2_SELECT_INCREMENT_TABLES1=
+  SELECT id FROM t1_2 ORDER BY id;
+let $CHILD2_2_AUTO_INCREMENT_INCREMENT1=
+  SET GLOBAL AUTO_INCREMENT_INCREMENT = 1;
+let $CHILD2_2_AUTO_INCREMENT_INCREMENT2=
+  SET GLOBAL AUTO_INCREMENT_INCREMENT = 4;
+let $CHILD2_2_AUTO_INCREMENT_OFFSET1=
+  SET GLOBAL AUTO_INCREMENT_OFFSET = 1;
+let $CHILD2_2_AUTO_INCREMENT_OFFSET2=
+  SET GLOBAL AUTO_INCREMENT_OFFSET = 3;
diff --git a/storage/spider/mysql-test/spider/handler/include/init_child2_3.inc b/storage/spider/mysql-test/spider/handler/include/init_child2_3.inc
new file mode 100644
index 00000000..05dbb1c3
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/init_child2_3.inc
@@ -0,0 +1,11 @@
+let $CHILD2_3_DROP_TABLES=
+  DROP TABLE IF EXISTS ta_r4;
+let $CHILD2_3_CREATE_TABLES=
+  CREATE TABLE ta_r4 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD2_3_ENGINE $CHILD2_3_CHARSET;
+let $CHILD2_3_SELECT_TABLES=
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_r4 ORDER BY a;
diff --git a/storage/spider/mysql-test/spider/handler/include/init_child3_1.inc b/storage/spider/mysql-test/spider/handler/include/init_child3_1.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/init_child3_1.inc
diff --git a/storage/spider/mysql-test/spider/handler/include/init_child3_2.inc b/storage/spider/mysql-test/spider/handler/include/init_child3_2.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/init_child3_2.inc
diff --git a/storage/spider/mysql-test/spider/handler/include/init_child3_3.inc b/storage/spider/mysql-test/spider/handler/include/init_child3_3.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/init_child3_3.inc
diff --git a/storage/spider/mysql-test/spider/handler/include/init_master_1.inc b/storage/spider/mysql-test/spider/handler/include/init_master_1.inc
new file mode 100644
index 00000000..9c487bc7
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/init_master_1.inc
@@ -0,0 +1,186 @@
+--source ../../include/init_spider.inc
+SET spider_internal_sql_log_off= 0;
+SET spider_use_handler= 3;
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT_2_1=
+    COMMENT='database "auto_test_remote", table "ta_r"'
+    CONNECTION='host "localhost", port "$CHILD2_1_MYPORT", user "root",
+    password ""';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT_2_1=
+    COMMENT='database "auto_test_remote", table "ta_r"'
+    CONNECTION='host "localhost", socket "$CHILD2_1_MYSOCK", user "root",
+    password ""';
+}
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT2_2_1=
+    COMMENT='database "auto_test_remote", table "ta_r_no_idx"'
+    CONNECTION='host "localhost", port "$CHILD2_1_MYPORT", user "root",
+    password "", prt "2000000"';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT2_2_1=
+    COMMENT='database "auto_test_remote", table "ta_r_no_idx"'
+    CONNECTION='host "localhost", socket "$CHILD2_1_MYSOCK", user "root",
+    password "", prt "2000000"';
+}
+let $MASTER_1_COMMENT_P_2_1=
+  COMMENT='table "ta_r3"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1", table "ta_r2",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_2", priority "1000001"'
+  );
+let $MASTER_1_COMMENT2_P_2_1=
+  COMMENT='table "ta_r3"'
+  PARTITION BY RANGE(a) (
+    PARTITION pt1 VALUES LESS THAN (4) COMMENT='srv "s_2_1",
+    table "ta_r2", priority "1000"',
+    PARTITION pt2 VALUES LESS THAN MAXVALUE
+    COMMENT='srv "s_2_2", priority "1000001"'
+  );
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT3_2_1=
+    COMMENT='database "auto_test_remote", table "ta_r_auto_inc"'
+    CONNECTION='host "localhost", port "$CHILD2_1_MYPORT", user "root",
+    password ""';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT3_2_1=
+    COMMENT='database "auto_test_remote", table "ta_r_auto_inc"'
+    CONNECTION='host "localhost", socket "$CHILD2_1_MYSOCK", user "root",
+    password ""';
+}
+let $MASTER_1_COMMENT3_P_2_1=
+  COMMENT='table "ta_r_int"'
+  PARTITION BY LIST(MOD(a, 2)) (
+    PARTITION pt1 VALUES IN (0)
+    COMMENT='srv "s_2_1", priority "1000"',
+    PARTITION pt2 VALUES IN (1)
+    COMMENT='srv "s_2_2", priority "1000001"'
+  );
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT4_2_1=
+    COMMENT='database "auto_test_remote", table "ta_r_int"'
+    CONNECTION='host "localhost", port "$CHILD2_1_MYPORT", user "root",
+    password ""';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT4_2_1=
+    COMMENT='database "auto_test_remote", table "ta_r_int"'
+    CONNECTION='host "localhost", socket "$CHILD2_1_MYSOCK", user "root",
+    password ""';
+}
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT5_2_1=
+    COMMENT='database "auto_test_remote", table "ta_r_3"'
+    CONNECTION='host "localhost", port "$CHILD2_1_MYPORT", user "root",
+    password ""';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT5_2_1=
+    COMMENT='database "auto_test_remote", table "ta_r_3"'
+    CONNECTION='host "localhost", socket "$CHILD2_1_MYSOCK", user "root",
+    password ""';
+}
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT_FT_2_1=
+    COMMENT='database "auto_test_remote", table "ft_r"'
+    CONNECTION='host "localhost", port "$CHILD2_1_MYPORT", user "root",
+    password ""';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT_FT_2_1=
+    COMMENT='database "auto_test_remote", table "ft_r"'
+    CONNECTION='host "localhost", socket "$CHILD2_1_MYSOCK", user "root",
+    password ""';
+}
+let $MASTER_1_COMMENT2_FT_P_2_1=
+  COMMENT='table "ft_r3"'
+  PARTITION BY RANGE(a) (
+    PARTITION pt1 VALUES LESS THAN (4) COMMENT='srv "s_2_1",
+    table "ft_r2", priority "1000"',
+    PARTITION pt2 VALUES LESS THAN MAXVALUE
+    COMMENT='srv "s_2_2", priority "1000001"'
+  );
+let $MASTER_1_COMMENT_GM_2_1=
+  COMMENT='srv "s_2_1", table "gm_r"';
+let $MASTER_1_COMMENT2_GM_P_2_1=
+  COMMENT='table "gm_r3"'
+  PARTITION BY RANGE(a) (
+    PARTITION pt1 VALUES LESS THAN (4) COMMENT='srv "s_2_1",
+    table "gm_r2", priority "1000"',
+    PARTITION pt2 VALUES LESS THAN MAXVALUE
+    COMMENT='srv "s_2_2", priority "1000001"'
+  );
+let $MASTER_1_COMMENT_LOCK1=
+  COMMENT 'tbl "t1_1 t1_2", srv "s_2_1 s_2_2"';
+let $MASTER_1_COMMENT_LOCK2=
+  COMMENT 'tbl "t2_1 t2_2", srv "s_2_2 s_2_1"';
+let $MASTER_1_COMMENT_INCREMENT1_1=
+  COMMENT 'aim "2", tbl "t1_1", srv "s_2_1"';
+let $MASTER_1_COMMENT_INCREMENT1_P_1=
+  COMMENT 'aim "2"'
+  PARTITION BY LIST(MOD(id, 2)) (
+    PARTITION pt1 VALUES IN (0)
+    COMMENT='tbl "t1_1", srv "s_2_1"',
+    PARTITION pt2 VALUES IN (1)
+    COMMENT='tbl "t1_2", srv "s_2_2"'
+  );
+let $MASTER_1_COMMENT_READONLY1_1=
+  COMMENT 'read_only_mode "1", tbl "t1_1", srv "s_2_1"';
+let $MASTER_1_COMMENT_ERROR_MODE1_1=
+  COMMENT 'erm "1", ewm "1", tbl "ter1_1", srv "s_2_1"';
+let $MASTER_1_COMMENT_TEXT_PK1_1=
+  COMMENT 'tbl "t1", srv "s_2_1"';
+let $MASTER_1_COMMENT_TEXT_KEY1_1=
+  COMMENT 'tbl "t1", srv "s_2_1"';
+let $MASTER_1_CHECK_DIRECT_UPDATE_STATUS=
+  SHOW STATUS LIKE 'Spider_direct_update';
+let $MASTER_1_CHECK_DIRECT_DELETE_STATUS=
+  SHOW STATUS LIKE 'Spider_direct_delete';
+let $MASTER_1_CHECK_DIRECT_ORDER_LIMIT_STATUS=
+  SHOW STATUS LIKE 'Spider_direct_order_limit';
+let $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS=
+  SHOW STATUS LIKE 'Spider_direct_aggregate';
+let $MASTER_1_AUTO_INCREMENT_INCREMENT1=
+  SET SESSION AUTO_INCREMENT_INCREMENT = 1 $STR_SEMICOLON
+  SELECT spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 1', '',
+    'srv "s_2_1"') $STR_SEMICOLON
+  SELECT spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 1', '',
+    'srv "s_2_2"');
+let $MASTER_1_AUTO_INCREMENT_INCREMENT2=
+  SET SESSION AUTO_INCREMENT_INCREMENT = 777 $STR_SEMICOLON
+  SELECT spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 4', '',
+    'srv "s_2_1"') $STR_SEMICOLON
+  SELECT spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 4', '',
+    'srv "s_2_2"');
+let $MASTER_1_AUTO_INCREMENT_OFFSET1=
+  SET SESSION AUTO_INCREMENT_OFFSET = 1 $STR_SEMICOLON
+  SELECT spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 1', '',
+    'srv "s_2_1"') $STR_SEMICOLON
+  SELECT spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 1', '',
+    'srv "s_2_2"');
+let $MASTER_1_AUTO_INCREMENT_OFFSET2=
+  SET SESSION AUTO_INCREMENT_OFFSET = 777 $STR_SEMICOLON
+  SELECT spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 2', '',
+    'srv "s_2_1"') $STR_SEMICOLON
+  SELECT spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 3', '',
+    'srv "s_2_2"');
+let $MASTER_1_AUTO_INCREMENT_OFFSET3=
+  SET SESSION AUTO_INCREMENT_OFFSET = 1;
+let $MASTER_1_AUTO_INCREMENT_OFFSET4=
+  SET SESSION AUTO_INCREMENT_OFFSET = 777;
diff --git a/storage/spider/mysql-test/spider/handler/include/init_slave1_1.inc b/storage/spider/mysql-test/spider/handler/include/init_slave1_1.inc
new file mode 100644
index 00000000..73c3c6b9
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/include/init_slave1_1.inc
@@ -0,0 +1,10 @@
+let $SLAVE1_1_COMMENT_INCREMENT1_1=
+  COMMENT '';
+let $SLAVE1_1_COMMENT_INCREMENT1_P_1=
+  COMMENT ''
+  PARTITION BY LIST(MOD(id, 2)) (
+    PARTITION pt1 VALUES IN (0)
+    COMMENT='',
+    PARTITION pt2 VALUES IN (1)
+    COMMENT=''
+  );
diff --git a/storage/spider/mysql-test/spider/handler/my.cnf b/storage/spider/mysql-test/spider/handler/my.cnf
new file mode 100644
index 00000000..89b91e6a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/my.cnf
@@ -0,0 +1,176 @@
+# Use default setting for mysqld processes
+!include include/default_mysqld.cnf
+
+[mysqld.1.1]
+loose_handlersocket_port=                20000
+loose_handlersocket_port_wr=             20001
+loose_handlersocket_threads=             2
+loose_handlersocket_threads_wr=          1
+loose_handlersocket_support_merge_table= 0
+loose_handlersocket_direct_update_mode=  0
+loose_handlersocket_unlimited_boundary=  65536
+loose_handlersocket_bulk_insert=         0
+loose_handlersocket_bulk_insert_timeout= 0
+loose_handlersocket_general_log=         1
+loose_handlersocket_timeout=             30
+loose_handlersocket_close_table_interval=2
+open_files_limit=                        4096
+loose_partition=                         1
+
+[mysqld.2.1]
+loose_handlersocket_port=                20002
+loose_handlersocket_port_wr=             20003
+loose_handlersocket_threads=             2
+loose_handlersocket_threads_wr=          1
+loose_handlersocket_support_merge_table= 0
+loose_handlersocket_direct_update_mode=  0
+loose_handlersocket_unlimited_boundary=  65536
+loose_handlersocket_bulk_insert=         0
+loose_handlersocket_bulk_insert_timeout= 0
+loose_handlersocket_general_log=         1
+loose_handlersocket_timeout=             30
+loose_handlersocket_close_table_interval=2
+open_files_limit=                        4096
+
+[mysqld.2.2]
+loose_handlersocket_port=                20004
+loose_handlersocket_port_wr=             20005
+loose_handlersocket_threads=             2
+loose_handlersocket_threads_wr=          1
+loose_handlersocket_support_merge_table= 0
+loose_handlersocket_direct_update_mode=  0
+loose_handlersocket_unlimited_boundary=  65536
+loose_handlersocket_bulk_insert=         0
+loose_handlersocket_bulk_insert_timeout= 0
+loose_handlersocket_general_log=         1
+loose_handlersocket_timeout=             30
+loose_handlersocket_close_table_interval=2
+open_files_limit=                        4096
+
+[mysqld.2.3]
+
+[mysqld.3.1]
+loose_partition=                         1
+
+[mysqld.3.2]
+loose_partition=                         1
+
+[mysqld.3.3]
+loose_partition=                         1
+
+[mysqld.4.1]
+loose_partition=                         1
+
+
+[ENV]
+USE_GEOMETRY_TEST=        1
+USE_FULLTEXT_TEST=        1
+USE_HA_TEST=              1
+USE_GENERAL_LOG=          1
+USE_REPLICATION=          1
+MASTER_1_MYPORT=          @mysqld.1.1.port
+MASTER_1_HSRPORT=         20000
+MASTER_1_HSWPORT=         20001
+MASTER_1_MYSOCK=          @mysqld.1.1.socket
+MASTER_1_ENGINE_TYPE=     Spider
+#MASTER_1_ENGINE_TYPE=     MyISAM
+MASTER_1_ENGINE=          ENGINE=Spider
+MASTER_1_CHARSET=         DEFAULT CHARSET=utf8
+MASTER_1_ENGINE2=         ENGINE=MyISAM
+MASTER_1_CHARSET2=        DEFAULT CHARSET=utf8
+MASTER_1_CHARSET3=        DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci
+SLAVE1_1_MYPORT=          @mysqld.4.1.port
+SLAVE1_1_MYSOCK=          @mysqld.4.1.socket
+SLAVE1_1_ENGINE_TYPE=     MyISAM
+SLAVE1_1_ENGINE=          ENGINE=MyISAM
+SLAVE1_1_CHARSET=         DEFAULT CHARSET=utf8
+USE_CHILD_GROUP2=         1
+OUTPUT_CHILD_GROUP2=      0
+CHILD2_1_MYPORT=          @mysqld.2.1.port
+CHILD2_1_HSRPORT=         20002
+CHILD2_1_HSWPORT=         20003
+CHILD2_1_MYSOCK=          @mysqld.2.1.socket
+CHILD2_1_ENGINE_TYPE=     InnoDB
+CHILD2_1_ENGINE=          ENGINE=InnoDB
+CHILD2_1_CHARSET=         DEFAULT CHARSET=utf8
+CHILD2_1_CHARSET2=        DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci
+CHILD2_2_MYPORT=          @mysqld.2.2.port
+CHILD2_2_HSRPORT=         20004
+CHILD2_2_HSWPORT=         20005
+CHILD2_2_MYSOCK=          @mysqld.2.2.socket
+CHILD2_2_ENGINE_TYPE=     InnoDB
+CHILD2_2_ENGINE=          ENGINE=InnoDB
+CHILD2_2_CHARSET=         DEFAULT CHARSET=utf8
+CHILD2_3_MYPORT=          @mysqld.2.3.port
+CHILD2_3_MYSOCK=          @mysqld.2.3.socket
+CHILD2_3_ENGINE_TYPE=     InnoDB
+CHILD2_3_ENGINE=          ENGINE=InnoDB
+CHILD2_3_CHARSET=         DEFAULT CHARSET=utf8
+CHILD2_1_FT_MYPORT=       @mysqld.1.1.port
+CHILD2_1_FT_MYSOCK=       @mysqld.1.1.socket
+CHILD2_1_FT_ENGINE_TYPE=  MyISAM
+CHILD2_1_FT_ENGINE=       ENGINE=MyISAM
+CHILD2_1_FT_CHARSET=      DEFAULT CHARSET=utf8
+CHILD2_2_FT_MYPORT=       @mysqld.2.2.port
+CHILD2_2_FT_MYSOCK=       @mysqld.2.2.socket
+CHILD2_2_FT_ENGINE_TYPE=  MyISAM
+CHILD2_2_FT_ENGINE=       ENGINE=MyISAM
+CHILD2_2_FT_CHARSET=      DEFAULT CHARSET=utf8
+CHILD2_1_GM_MYPORT=       @mysqld.2.1.port
+CHILD2_1_GM_MYSOCK=       @mysqld.2.1.socket
+CHILD2_1_GM_ENGINE_TYPE=  MyISAM
+CHILD2_1_GM_ENGINE=       ENGINE=MyISAM
+CHILD2_1_GM_CHARSET=      DEFAULT CHARSET=utf8
+CHILD2_2_GM_MYPORT=       @mysqld.2.2.port
+CHILD2_2_GM_MYSOCK=       @mysqld.2.2.socket
+CHILD2_2_GM_ENGINE_TYPE=  MyISAM
+CHILD2_2_GM_ENGINE=       ENGINE=MyISAM
+CHILD2_2_GM_CHARSET=      DEFAULT CHARSET=utf8
+USE_CHILD_GROUP3=         1
+OUTPUT_CHILD_GROUP3=      0
+CHILD3_1_MYPORT=          @mysqld.3.1.port
+CHILD3_1_MYSOCK=          @mysqld.3.1.socket
+CHILD3_1_ENGINE_TYPE=     InnoDB
+CHILD3_1_ENGINE=          ENGINE=InnoDB
+CHILD3_1_CHARSET=         DEFAULT CHARSET=utf8
+CHILD3_2_MYPORT=          @mysqld.3.2.port
+CHILD3_2_MYSOCK=          @mysqld.3.2.socket
+CHILD3_2_ENGINE_TYPE=     InnoDB
+CHILD3_2_ENGINE=          ENGINE=InnoDB
+CHILD3_2_CHARSET=         DEFAULT CHARSET=utf8
+CHILD3_3_MYPORT=          @mysqld.3.3.port
+CHILD3_3_MYSOCK=          @mysqld.3.3.socket
+CHILD3_3_ENGINE_TYPE=     InnoDB
+CHILD3_3_ENGINE=          ENGINE=InnoDB
+CHILD3_3_CHARSET=         DEFAULT CHARSET=utf8
+
+STR_SEMICOLON=            ;
+
+#The followings are set in include/init_xxx.inc files
+# MASTER_1_COMMENT_2_1
+# MASTER_1_COMMENT2_2_1
+# MASTER_1_COMMENT3_2_1
+# MASTER_1_COMMENT4_2_1
+# MASTER_1_COMMENT5_2_1
+# MASTER_1_COMMENT_P_2_1
+# CHILD2_1_DROP_TABLES
+# CHILD2_1_CREATE_TABLES
+# CHILD2_1_SELECT_TABLES
+# CHILD2_1_DROP_TABLES2
+# CHILD2_1_CREATE_TABLES2
+# CHILD2_1_SELECT_TABLES2
+# CHILD2_1_DROP_TABLES3
+# CHILD2_1_CREATE_TABLES3
+# CHILD2_1_SELECT_TABLES3
+# CHILD2_1_DROP_TABLES4
+# CHILD2_1_CREATE_TABLES4
+# CHILD2_1_SELECT_TABLES4
+# CHILD2_1_DROP_TABLES5
+# CHILD2_1_CREATE_TABLES5
+# CHILD2_1_SELECT_TABLES5
+# CHILD2_1_DROP_TABLES6
+# CHILD2_1_CREATE_TABLES6
+# CHILD2_1_SELECT_TABLES6
+# CHILD2_2_DROP_TABLES
+# CHILD2_2_CREATE_TABLES
+# CHILD2_2_SELECT_TABLES
diff --git a/storage/spider/mysql-test/spider/handler/r/basic_sql.result b/storage/spider/mysql-test/spider/handler/r/basic_sql.result
new file mode 100644
index 00000000..94a09fc3
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/r/basic_sql.result
@@ -0,0 +1,738 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+
+create table select test
+connection master_1;
+DROP TABLE IF EXISTS tb_l;
+CREATE TABLE tb_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+INSERT INTO tb_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+SELECT a, b, c FROM tb_l
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+create table ignore select test
+connection master_1;
+DROP TABLE IF EXISTS ta_l;
+DROP TABLE IF EXISTS tb_l;
+CREATE TABLE tb_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+INSERT INTO tb_l (a, b, c) VALUES
+(1, 'f', '2008-07-01 10:21:39'),
+(2, 'g', '2000-02-01 00:00:00'),
+(3, 'j', '2007-05-04 20:03:11'),
+(4, 'i', '2003-10-30 05:01:03'),
+(5, 'h', '2001-10-31 23:59:59');
+CREATE TABLE ta_l (
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+IGNORE SELECT a, b, c FROM tb_l
+Warnings:
+Warning	1062	Duplicate entry '1' for key 'PRIMARY'
+Warning	1062	Duplicate entry '2' for key 'PRIMARY'
+Warning	1062	Duplicate entry '3' for key 'PRIMARY'
+Warning	1062	Duplicate entry '4' for key 'PRIMARY'
+Warning	1062	Duplicate entry '5' for key 'PRIMARY'
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+create table ignore select test
+connection master_1;
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+REPLACE SELECT a, b, c FROM tb_l
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+create no index table
+connection master_1;
+DROP TABLE IF EXISTS ta_l_no_idx;
+CREATE TABLE ta_l_no_idx
+MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT2_2_1
+SELECT a, b, c FROM tb_l
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l_no_idx ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select table
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select table shared mode
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a
+LOCK IN SHARE MODE;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select table for update
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a
+FOR UPDATE;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select table join
+connection master_1;
+SELECT a.a, a.b, date_format(b.c, '%Y-%m-%d %H:%i:%s') FROM ta_l a, tb_l b
+WHERE a.a = b.a ORDER BY a.a;
+a	b	date_format(b.c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select table straight_join
+connection master_1;
+SELECT STRAIGHT_JOIN a.a, a.b, date_format(b.c, '%Y-%m-%d %H:%i:%s')
+FROM ta_l a, tb_l b WHERE a.a = b.a ORDER BY a.a;
+a	b	date_format(b.c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select sql_small_result
+connection master_1;
+SELECT SQL_SMALL_RESULT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select sql_big_result
+connection master_1;
+SELECT SQL_BIG_RESULT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select sql_buffer_result
+connection master_1;
+SELECT SQL_BUFFER_RESULT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select sql_cache
+connection master_1;
+SELECT SQL_CACHE a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select sql_no_cache
+connection master_1;
+SELECT SQL_NO_CACHE a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select sql_calc_found_rows
+connection master_1;
+SELECT SQL_CALC_FOUND_ROWS a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a LIMIT 4;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+connection master_1;
+SELECT found_rows();
+found_rows()
+5
+
+select high_priority
+connection master_1;
+SELECT HIGH_PRIORITY a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select distinct
+connection master_1;
+SELECT DISTINCT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select count
+connection master_1;
+SELECT count(*) FROM ta_l ORDER BY a;
+count(*)
+5
+
+select table join not use index
+connection master_1;
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM tb_l a WHERE
+EXISTS (SELECT * FROM ta_l b WHERE b.b = a.b) ORDER BY a.a;
+a	b	date_format(a.c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select using pushdown
+connection master_1;
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l a WHERE
+a.b = 'g' ORDER BY a.a;
+a	b	date_format(a.c, '%Y-%m-%d %H:%i:%s')
+2	g	2000-02-01 00:00:00
+
+select using index and pushdown
+connection master_1;
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l a WHERE
+a.a > 0 AND a.b = 'g' ORDER BY a.a;
+a	b	date_format(a.c, '%Y-%m-%d %H:%i:%s')
+2	g	2000-02-01 00:00:00
+
+insert
+connection master_1;
+TRUNCATE TABLE ta_l;
+connection master_1;
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59');
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	e	2008-01-01 23:59:59
+
+insert select
+connection master_1;
+TRUNCATE TABLE ta_l;
+connection master_1;
+INSERT INTO ta_l (a, b, c) SELECT a, b, c FROM tb_l;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+insert select a
+connection master_1;
+TRUNCATE TABLE ta_l;
+connection master_1;
+INSERT INTO ta_l (a, b, c) VALUES ((SELECT a FROM tb_l ORDER BY a LIMIT 1),
+'e', '2008-01-01 23:59:59');
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+
+insert low_priority
+connection master_1;
+TRUNCATE TABLE ta_l;
+connection master_1;
+INSERT LOW_PRIORITY INTO ta_l (a, b, c) values (2, 'e', '2008-01-01 23:59:59');
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	e	2008-01-01 23:59:59
+
+insert high_priority
+connection master_1;
+TRUNCATE TABLE ta_l;
+connection master_1;
+INSERT HIGH_PRIORITY INTO ta_l (a, b, c) VALUES (2, 'e',
+'2008-01-01 23:59:59');
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	e	2008-01-01 23:59:59
+
+insert ignore
+connection master_1;
+INSERT IGNORE INTO ta_l (a, b, c) VALUES (2, 'd', '2009-02-02 01:01:01');
+Warnings:
+Warning	1062	Duplicate entry '2' for key 'PRIMARY'
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	e	2008-01-01 23:59:59
+
+insert update (insert)
+connection master_1;
+TRUNCATE TABLE ta_l;
+connection master_1;
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59') ON DUPLICATE
+KEY UPDATE b = 'f', c = '2005-08-08 11:11:11';
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	e	2008-01-01 23:59:59
+
+insert update (update)
+connection master_1;
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59') ON DUPLICATE
+KEY UPDATE b = 'f', c = '2005-08-08 11:11:11';
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	f	2005-08-08 11:11:11
+
+replace
+connection master_1;
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59');
+connection master_1;
+REPLACE INTO ta_l (a, b, c) VALUES (2, 'f', '2008-02-02 02:02:02');
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	f	2008-02-02 02:02:02
+
+replace select
+connection master_1;
+REPLACE INTO ta_l (a, b, c) SELECT a, b, c FROM tb_l;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+replace select a
+connection master_1;
+REPLACE INTO ta_l (a, b, c) VALUES ((SELECT a FROM tb_l ORDER BY a LIMIT 1),
+'e', '2008-01-01 23:59:59');
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+replace low_priority
+connection master_1;
+REPLACE LOW_PRIORITY INTO ta_l (a, b, c) VALUES (3, 'g',
+'2009-03-03 03:03:03');
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+2	g	2000-02-01 00:00:00
+3	g	2009-03-03 03:03:03
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+update
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59');
+connection master_1;
+UPDATE ta_l SET b = 'f', c = '2008-02-02 02:02:02' WHERE a = 2;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+2	f	2008-02-02 02:02:02
+
+update select
+connection master_1;
+UPDATE ta_l SET b = 'g', c = '2009-03-03 03:03:03' WHERE a IN (SELECT a FROM
+tb_l);
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	g	2009-03-03 03:03:03
+2	g	2009-03-03 03:03:03
+
+update select a
+connection master_1;
+UPDATE ta_l SET b = 'h', c = '2010-04-04 04:04:04' WHERE a = (SELECT a FROM
+tb_l ORDER BY a LIMIT 1);
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	h	2010-04-04 04:04:04
+2	g	2009-03-03 03:03:03
+
+update join
+connection master_1;
+UPDATE ta_l a, tb_l b SET a.b = b.b, a.c = b.c WHERE a.a = b.a;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+
+update join a
+connection master_1;
+UPDATE ta_l a, tb_l b SET a.b = 'g', a.c = '2009-03-03 03:03:03' WHERE
+a.a = b.a;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	g	2009-03-03 03:03:03
+2	g	2009-03-03 03:03:03
+
+update low_priority
+connection master_1;
+UPDATE LOW_PRIORITY ta_l SET b = 'f', c = '2008-02-02 02:02:02' WHERE a = 2;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	g	2009-03-03 03:03:03
+2	f	2008-02-02 02:02:02
+
+update ignore
+connection master_1;
+UPDATE IGNORE ta_l SET a = 1, b = 'g', c = '2009-03-03 03:03:03' WHERE a = 2;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	g	2009-03-03 03:03:03
+2	f	2008-02-02 02:02:02
+
+update pushdown
+connection master_1;
+update ta_l set b = 'j', c = '2009-03-03 03:03:03' where b = 'f';
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	g	2009-03-03 03:03:03
+2	j	2009-03-03 03:03:03
+
+update index pushdown
+connection master_1;
+UPDATE ta_l SET b = 'g', c = '2009-03-03 03:03:03' WHERE a > 0 AND b = 'j';
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	g	2009-03-03 03:03:03
+2	g	2009-03-03 03:03:03
+
+delete
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+connection master_1;
+DELETE FROM ta_l WHERE a = 2;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+3	e	2008-01-01 23:59:59
+4	e	2008-01-01 23:59:59
+5	e	2008-01-01 23:59:59
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete all
+connection master_1;
+DELETE FROM ta_l;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+
+delete select
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+connection master_1;
+DELETE FROM ta_l WHERE a IN (SELECT a FROM tb_l);
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete select a
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+connection master_1;
+DELETE FROM ta_l WHERE a = (SELECT a FROM tb_l ORDER BY a LIMIT 1);
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	e	2008-01-01 23:59:59
+3	e	2008-01-01 23:59:59
+4	e	2008-01-01 23:59:59
+5	e	2008-01-01 23:59:59
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete join
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+connection master_1;
+DELETE a FROM ta_l a, (SELECT a FROM tb_l ORDER BY a) b WHERE a.a = b.a;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete low_priority
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+connection master_1;
+DELETE LOW_PRIORITY FROM ta_l WHERE a = 2;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+3	e	2008-01-01 23:59:59
+4	e	2008-01-01 23:59:59
+5	e	2008-01-01 23:59:59
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete ignore
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+connection master_1;
+DELETE IGNORE FROM ta_l WHERE a = 2;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+3	e	2008-01-01 23:59:59
+4	e	2008-01-01 23:59:59
+5	e	2008-01-01 23:59:59
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete quick
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+connection master_1;
+DELETE QUICK FROM ta_l WHERE a = 2;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+3	e	2008-01-01 23:59:59
+4	e	2008-01-01 23:59:59
+5	e	2008-01-01 23:59:59
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete pushdown
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+connection master_1;
+DELETE FROM ta_l WHERE b = 'e';
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+10	j	2008-01-01 23:59:59
+
+delete index pushdown
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+connection master_1;
+DELETE FROM ta_l WHERE a > 0 AND b = 'e';
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+10	j	2008-01-01 23:59:59
+
+truncate
+connection master_1;
+TRUNCATE TABLE ta_l;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/handler/r/basic_sql_part.result b/storage/spider/mysql-test/spider/handler/r/basic_sql_part.result
new file mode 100644
index 00000000..0f402940
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/r/basic_sql_part.result
@@ -0,0 +1,141 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+connection master_1;
+DROP TABLE IF EXISTS tb_l;
+CREATE TABLE tb_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+INSERT INTO tb_l (a, b, c) VALUES
+(1, 'f', '2008-07-01 10:21:39'),
+(2, 'g', '2000-02-01 00:00:00'),
+(3, 'j', '2007-05-04 20:03:11'),
+(4, 'i', '2003-10-30 05:01:03'),
+(5, 'h', '2001-10-31 23:59:59');
+
+create table with partition and select test
+connection master_1;
+CREATE TABLE ta_l2 (
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_COMMENT_P_2_1
+SELECT a, b, c FROM tb_l
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select partition using pushdown
+connection master_1;
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 a WHERE
+a.b = 'g' ORDER BY a.a;
+a	b	date_format(a.c, '%Y-%m-%d %H:%i:%s')
+2	g	2000-02-01 00:00:00
+
+select partition using index pushdown
+connection master_1;
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 a WHERE
+a.a > 0 AND a.b = 'g' ORDER BY a.a;
+a	b	date_format(a.c, '%Y-%m-%d %H:%i:%s')
+2	g	2000-02-01 00:00:00
+
+update partition pushdown
+connection master_1;
+UPDATE ta_l2 SET b = 'e', c = '2009-03-03 03:03:03' WHERE b = 'j';
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	e	2009-03-03 03:03:03
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+update partition index pushdown
+connection master_1;
+UPDATE ta_l2 SET b = 'j', c = '2009-03-03 03:03:03' WHERE a > 0 AND b = 'e';
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2009-03-03 03:03:03
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+delete partition pushdown
+TRUNCATE TABLE ta_l2;
+INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+connection master_1;
+DELETE FROM ta_l2 WHERE b = 'g';
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+delete partition index pushdown
+TRUNCATE TABLE ta_l2;
+INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+connection master_1;
+DELETE FROM ta_l2 WHERE a > 0 AND b = 'g';
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/handler/r/direct_aggregate.result b/storage/spider/mysql-test/spider/handler/r/direct_aggregate.result
new file mode 100644
index 00000000..9a8660ba
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/r/direct_aggregate.result
@@ -0,0 +1,100 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+
+create table select test
+connection master_1;
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO ta_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+direct_aggregating test
+connection master_1;
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	0
+SELECT COUNT(*) FROM ta_l;
+COUNT(*)
+5
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	0
+SELECT MAX(a) FROM ta_l;
+MAX(a)
+5
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	0
+SELECT MIN(a) FROM ta_l;
+MIN(a)
+1
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	0
+SELECT MAX(a) FROM ta_l WHERE a < 5;
+MAX(a)
+4
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	0
+SELECT MIN(a) FROM ta_l WHERE a > 1;
+MIN(a)
+2
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	0
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/handler/r/direct_aggregate_part.result b/storage/spider/mysql-test/spider/handler/r/direct_aggregate_part.result
new file mode 100644
index 00000000..760b39e1
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/r/direct_aggregate_part.result
@@ -0,0 +1,90 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+
+with partition test
+connection master_1;
+CREATE TABLE ta_l2 (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	0
+SELECT COUNT(*) FROM ta_l2;
+COUNT(*)
+5
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	0
+SELECT MAX(a) FROM ta_l2;
+MAX(a)
+5
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	0
+SELECT MIN(a) FROM ta_l2;
+MIN(a)
+1
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	0
+SELECT MAX(a) FROM ta_l2 WHERE a < 5;
+MAX(a)
+4
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	0
+SELECT MIN(a) FROM ta_l2 WHERE a > 1;
+MIN(a)
+2
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	0
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/handler/r/direct_update.result b/storage/spider/mysql-test/spider/handler/r/direct_update.result
new file mode 100644
index 00000000..0e536d48
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/r/direct_update.result
@@ -0,0 +1,155 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+
+create table select test
+connection master_1;
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO ta_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+direct_updating test
+connection master_1;
+SHOW STATUS LIKE 'Spider_direct_update';
+Variable_name	Value
+Spider_direct_update	0
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+update all rows with function
+UPDATE ta_l SET c = ADDDATE(c, 1);
+SHOW STATUS LIKE 'Spider_direct_update';
+Variable_name	Value
+Spider_direct_update	1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	e	2007-06-05 20:03:11
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+update by primary key
+UPDATE ta_l SET b = 'x' WHERE a = 3;
+SHOW STATUS LIKE 'Spider_direct_update';
+Variable_name	Value
+Spider_direct_update	2
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	x	2007-06-05 20:03:11
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+update by a column without index
+UPDATE ta_l SET c = '2011-10-17' WHERE b = 'x';
+SHOW STATUS LIKE 'Spider_direct_update';
+Variable_name	Value
+Spider_direct_update	3
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	x	2011-10-17 00:00:00
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+update by primary key with order and limit
+UPDATE ta_l SET c = ADDDATE(c, 1) WHERE a < 4 ORDER BY b DESC LIMIT 1;
+SHOW STATUS LIKE 'Spider_direct_update';
+Variable_name	Value
+Spider_direct_update	4
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	x	2011-10-18 00:00:00
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+delete by primary key with order and limit
+DELETE FROM ta_l WHERE a < 4 ORDER BY c LIMIT 1;
+SHOW STATUS LIKE 'Spider_direct_delete';
+Variable_name	Value
+Spider_direct_delete	1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+3	x	2011-10-18 00:00:00
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+delete by a column without index
+DELETE FROM ta_l WHERE b = 'c';
+SHOW STATUS LIKE 'Spider_direct_delete';
+Variable_name	Value
+Spider_direct_delete	2
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+3	x	2011-10-18 00:00:00
+4	d	2003-12-01 05:01:03
+delete by primary key
+DELETE FROM ta_l WHERE a = 3;
+SHOW STATUS LIKE 'Spider_direct_delete';
+Variable_name	Value
+Spider_direct_delete	3
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+4	d	2003-12-01 05:01:03
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/handler/r/direct_update_part.result b/storage/spider/mysql-test/spider/handler/r/direct_update_part.result
new file mode 100644
index 00000000..7069cd72
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/r/direct_update_part.result
@@ -0,0 +1,145 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+
+with partition test
+connection master_1;
+CREATE TABLE ta_l2 (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1
+SHOW STATUS LIKE 'Spider_direct_update';
+Variable_name	Value
+Spider_direct_update	0
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+update all rows with function
+UPDATE ta_l2 SET c = ADDDATE(c, 1);
+SHOW STATUS LIKE 'Spider_direct_update';
+Variable_name	Value
+Spider_direct_update	2
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	e	2007-06-05 20:03:11
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+update by primary key
+UPDATE ta_l2 SET b = 'x' WHERE a = 3;
+SHOW STATUS LIKE 'Spider_direct_update';
+Variable_name	Value
+Spider_direct_update	3
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	x	2007-06-05 20:03:11
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+update by a column without index
+UPDATE ta_l2 SET c = '2011-10-17' WHERE b = 'x';
+SHOW STATUS LIKE 'Spider_direct_update';
+Variable_name	Value
+Spider_direct_update	5
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	x	2011-10-17 00:00:00
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+update by primary key with order and limit
+UPDATE ta_l2 SET c = ADDDATE(c, 1) WHERE a < 4 ORDER BY b DESC LIMIT 1;
+SHOW STATUS LIKE 'Spider_direct_update';
+Variable_name	Value
+Spider_direct_update	6
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	x	2011-10-18 00:00:00
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+delete by primary key with order and limit
+DELETE FROM ta_l2 WHERE a < 4 ORDER BY c LIMIT 1;
+SHOW STATUS LIKE 'Spider_direct_delete';
+Variable_name	Value
+Spider_direct_delete	1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+3	x	2011-10-18 00:00:00
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+delete by a column without index
+DELETE FROM ta_l2 WHERE b = 'c';
+SHOW STATUS LIKE 'Spider_direct_delete';
+Variable_name	Value
+Spider_direct_delete	3
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+3	x	2011-10-18 00:00:00
+4	d	2003-12-01 05:01:03
+delete by primary key
+DELETE FROM ta_l2 WHERE a = 3;
+SHOW STATUS LIKE 'Spider_direct_delete';
+Variable_name	Value
+Spider_direct_delete	4
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+4	d	2003-12-01 05:01:03
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/handler/r/function.result b/storage/spider/mysql-test/spider/handler/r/function.result
new file mode 100644
index 00000000..c088a8a9
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/r/function.result
@@ -0,0 +1,160 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+
+in()
+connection master_1;
+CREATE TABLE t1 (
+a VARCHAR(255),
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET3 MASTER_1_COMMENT_TEXT_PK1_1
+insert into t1 values ('1');
+insert into t1 select a + 1 from t1;
+insert into t1 select a + 2 from t1;
+insert into t1 select a + 4 from t1;
+insert into t1 select a + 8 from t1;
+insert into t1 select a + 16 from t1;
+insert into t1 select a + 32 from t1;
+insert into t1 select a + 64 from t1;
+insert into t1 select a + 128 from t1;
+insert into t1 select a + 256 from t1;
+insert into t1 select a + 512 from t1;
+flush tables;
+connection master_1;
+select a from t1 where a in ('15', '120');
+a
+120
+15
+
+date_sub()
+connection master_1;
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO ta_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 YEAR);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-08-01 10:21:39
+2	b	1999-01-01 00:00:00
+3	e	2006-06-04 20:03:11
+4	d	2002-11-30 05:01:03
+5	c	2000-12-31 23:59:59
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 QUARTER);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-11-01 10:21:39
+2	b	1999-04-01 00:00:00
+3	e	2006-09-04 20:03:11
+4	d	2003-02-28 05:01:03
+5	c	2001-03-31 23:59:59
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 MONTH);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-10-01 10:21:39
+2	b	1999-03-01 00:00:00
+3	e	2006-08-04 20:03:11
+4	d	2003-01-28 05:01:03
+5	c	2001-02-28 23:59:59
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 WEEK);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-10-08 10:21:39
+2	b	1999-03-08 00:00:00
+3	e	2006-08-11 20:03:11
+4	d	2003-02-04 05:01:03
+5	c	2001-03-07 23:59:59
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 DAY);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-10-07 10:21:39
+2	b	1999-03-07 00:00:00
+3	e	2006-08-10 20:03:11
+4	d	2003-02-03 05:01:03
+5	c	2001-03-06 23:59:59
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 HOUR);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-10-07 11:21:39
+2	b	1999-03-07 01:00:00
+3	e	2006-08-10 21:03:11
+4	d	2003-02-03 06:01:03
+5	c	2001-03-07 00:59:59
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 MINUTE);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-10-07 11:20:39
+2	b	1999-03-07 00:59:00
+3	e	2006-08-10 21:02:11
+4	d	2003-02-03 06:00:03
+5	c	2001-03-07 00:58:59
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 SECOND);
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-10-07 11:20:40
+2	b	1999-03-07 00:59:01
+3	e	2006-08-10 21:02:12
+4	d	2003-02-03 06:00:04
+5	c	2001-03-07 00:59:00
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/handler/r/ha.result b/storage/spider/mysql-test/spider/handler/r/ha.result
new file mode 100644
index 00000000..f8833c22
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/r/ha.result
@@ -0,0 +1,266 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+connection child2_3;
+DROP DATABASE IF EXISTS auto_test_remote3;
+CREATE DATABASE auto_test_remote3;
+USE auto_test_remote3;
+connection child3_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child3_2;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child3_3;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+
+create table test
+connection master_1;
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_2_1
+INSERT INTO ta_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+select test
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+fail-over test
+connection master_1;
+SHOW STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	0
+Spider_mon_table_cache_version_req	1
+INSERT INTO ta_l (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+ERROR HY000: Table 'auto_test_remote2.ta_r3' get a problem
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l	0	1
+auto_test_local	ta_l	1	3
+SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+db_name	table_name	link_id
+auto_test_local	ta_l	1
+SHOW STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	1
+Spider_mon_table_cache_version_req	1
+INSERT INTO ta_l (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+6	e	2011-05-05 20:04:05
+
+recovery test
+connection master_1;
+ALTER TABLE ta_l
+CONNECTION='host "localhost", user "root", password "",
+  msi "5", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 2"';
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l	0	1
+auto_test_local	ta_l	1	2
+SELECT spider_copy_tables('ta_l', '0', '1');
+spider_copy_tables('ta_l', '0', '1')
+1
+connection master_1;
+ALTER TABLE ta_l
+CONNECTION='host "localhost", user "root", password "",
+  msi "5", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 1"';
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l	0	1
+auto_test_local	ta_l	1	1
+INSERT INTO ta_l (a, b, c) VALUES
+(8, 'g', '2011-05-05 21:33:30');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+6	e	2011-05-05 20:04:05
+8	g	2011-05-05 21:33:30
+DROP TABLE ta_l;
+connection master_1;
+SELECT spider_flush_table_mon_cache();
+spider_flush_table_mon_cache()
+1
+
+active standby test
+create table test
+connection master_1;
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_AS_2_1
+INSERT INTO ta_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+select test
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+fail-over test
+connection master_1;
+SHOW STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	1
+Spider_mon_table_cache_version_req	2
+INSERT INTO ta_l (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+ERROR HY000: Table 'auto_test_remote.ta_r' get a problem
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l	0	3
+auto_test_local	ta_l	1	1
+SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+db_name	table_name	link_id
+auto_test_local	ta_l	1
+auto_test_local	ta_l	0
+SHOW STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	2
+Spider_mon_table_cache_version_req	2
+INSERT INTO ta_l (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+6	e	2011-05-05 20:04:05
+
+recovery test
+connection master_1;
+ALTER TABLE ta_l
+CONNECTION='host "localhost", user "root", password "",
+  msi "5", mkd "2", alc "1",
+  database "auto_test_remote auto_test_remote2", lst "1 0"';
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l	0	1
+auto_test_local	ta_l	1	1
+INSERT INTO ta_l (a, b, c) VALUES
+(8, 'g', '2011-05-05 21:33:30');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+8	g	2011-05-05 21:33:30
+DROP TABLE ta_l;
+connection master_1;
+SELECT spider_flush_table_mon_cache();
+spider_flush_table_mon_cache()
+1
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+connection child2_3;
+DROP DATABASE IF EXISTS auto_test_remote3;
+connection child3_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child3_2;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child3_3;
+DROP DATABASE IF EXISTS auto_test_local;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/handler/r/ha_part.result b/storage/spider/mysql-test/spider/handler/r/ha_part.result
new file mode 100644
index 00000000..315f3729
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/r/ha_part.result
@@ -0,0 +1,286 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+connection child2_3;
+DROP DATABASE IF EXISTS auto_test_remote3;
+CREATE DATABASE auto_test_remote3;
+USE auto_test_remote3;
+connection child3_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child3_2;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child3_3;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+
+create table with partition test
+connection master_1;
+DROP TABLE IF EXISTS ta_l2;
+CREATE TABLE ta_l2 (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_P_2_1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+select test
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+fail-over test
+connection master_1;
+SHOW STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	0
+Spider_mon_table_cache_version_req	1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+ERROR HY000: Table 'auto_test_remote3.ta_r4' get a problem
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l2#P#pt1	0	1
+auto_test_local	ta_l2#P#pt1	1	1
+auto_test_local	ta_l2#P#pt2	0	1
+auto_test_local	ta_l2#P#pt2	1	3
+SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+db_name	table_name	link_id
+auto_test_local	ta_l2#P#pt2	1
+SHOW STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	1
+Spider_mon_table_cache_version_req	1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+6	e	2011-05-05 20:04:05
+
+recovery test
+connection master_1;
+ALTER TABLE ta_l2
+PARTITION BY KEY(a) (
+PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 2"'
+  );
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l2#P#pt1	0	1
+auto_test_local	ta_l2#P#pt1	1	1
+auto_test_local	ta_l2#P#pt2	0	1
+auto_test_local	ta_l2#P#pt2	1	2
+SELECT spider_copy_tables('ta_l2#P#pt2', '0', '1');
+spider_copy_tables('ta_l2#P#pt2', '0', '1')
+1
+connection master_1;
+ALTER TABLE ta_l2
+PARTITION BY KEY(a) (
+PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 1"'
+  );
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l2#P#pt1	0	1
+auto_test_local	ta_l2#P#pt1	1	1
+auto_test_local	ta_l2#P#pt2	0	1
+auto_test_local	ta_l2#P#pt2	1	1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(8, 'g', '2011-05-05 21:33:30'),
+(9, 'h', '2011-05-05 22:32:10');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+6	e	2011-05-05 20:04:05
+8	g	2011-05-05 21:33:30
+9	h	2011-05-05 22:32:10
+DROP TABLE ta_l2;
+
+create table with partition test
+connection master_1;
+DROP TABLE IF EXISTS ta_l2;
+CREATE TABLE ta_l2 (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_AS_P_2_1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+select test
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+fail-over test
+connection master_1;
+SHOW STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	1
+Spider_mon_table_cache_version_req	1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+ERROR HY000: Table 'auto_test_remote.ta_r2' get a problem
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l2#P#pt1	0	1
+auto_test_local	ta_l2#P#pt1	1	1
+auto_test_local	ta_l2#P#pt2	0	3
+auto_test_local	ta_l2#P#pt2	1	1
+SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+db_name	table_name	link_id
+auto_test_local	ta_l2#P#pt2	1
+auto_test_local	ta_l2#P#pt2	0
+SHOW STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	1
+Spider_mon_table_cache_version_req	1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+3	e	2007-06-04 20:03:11
+5	c	2001-12-31 23:59:59
+6	e	2011-05-05 20:04:05
+
+recovery test
+connection master_1;
+ALTER TABLE ta_l2
+PARTITION BY KEY(a) (
+PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "1 0"'
+  );
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l2#P#pt1	0	1
+auto_test_local	ta_l2#P#pt1	1	1
+auto_test_local	ta_l2#P#pt2	0	1
+auto_test_local	ta_l2#P#pt2	1	1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(8, 'g', '2011-05-05 21:33:30'),
+(9, 'h', '2011-05-05 22:32:10');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+3	e	2007-06-04 20:03:11
+5	c	2001-12-31 23:59:59
+8	g	2011-05-05 21:33:30
+9	h	2011-05-05 22:32:10
+DROP TABLE ta_l2;
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+connection child2_3;
+DROP DATABASE IF EXISTS auto_test_remote3;
+connection child3_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child3_2;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child3_3;
+DROP DATABASE IF EXISTS auto_test_local;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/handler/r/spider3_fixes.result b/storage/spider/mysql-test/spider/handler/r/spider3_fixes.result
new file mode 100644
index 00000000..9a8a5915
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/r/spider3_fixes.result
@@ -0,0 +1,240 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for slave1_1
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection slave1_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+
+3.1
+auto_increment
+connection master_1;
+connection slave1_1;
+connection master_1;
+DROP TABLE IF EXISTS t1, t2;
+CREATE TABLE t1 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_1
+CREATE TABLE t2 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_1
+MASTER_1_AUTO_INCREMENT_INCREMENT2
+MASTER_1_AUTO_INCREMENT_OFFSET2
+spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 4', '',
+'srv "s_2_1"')
+1
+spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 4', '',
+'srv "s_2_2"')
+1
+spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 2', '',
+'srv "s_2_1"')
+1
+spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 3', '',
+'srv "s_2_2"')
+1
+CREATE TABLE t1 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_1
+CREATE TABLE t2 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_1
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+2
+SELECT MAX(id) FROM t1;
+MAX(id)
+2
+INSERT INTO t2 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+6
+SELECT MAX(id) FROM t2;
+MAX(id)
+6
+MASTER_1_AUTO_INCREMENT_OFFSET3
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+10
+SELECT MAX(id) FROM t1;
+MAX(id)
+10
+MASTER_1_AUTO_INCREMENT_OFFSET4
+INSERT INTO t2 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+14
+SELECT MAX(id) FROM t2;
+MAX(id)
+14
+MASTER_1_AUTO_INCREMENT_OFFSET3
+INSERT INTO t1 () VALUES (),(),(),();
+Warnings:
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+18
+SELECT id FROM t1 ORDER BY id;
+id
+2
+6
+10
+14
+18
+22
+26
+30
+MASTER_1_AUTO_INCREMENT_OFFSET4
+INSERT INTO t2 () VALUES (),(),(),();
+Warnings:
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+34
+SELECT id FROM t2 ORDER BY id;
+id
+2
+6
+10
+14
+18
+22
+26
+30
+34
+38
+42
+46
+TRUNCATE TABLE t1;
+TRUNCATE TABLE t2;
+INSERT INTO t1 () VALUES (),(),(),();
+Warnings:
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+2
+SELECT id FROM t1 ORDER BY id;
+id
+2
+6
+10
+14
+INSERT INTO t2 () VALUES (),(),(),();
+Warnings:
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+18
+SELECT id FROM t2 ORDER BY id;
+id
+2
+6
+10
+14
+18
+22
+26
+30
+SET INSERT_ID=5000;
+MASTER_1_AUTO_INCREMENT_OFFSET3
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+34
+SELECT MAX(id) FROM t1;
+MAX(id)
+34
+MASTER_1_AUTO_INCREMENT_OFFSET4
+INSERT INTO t2 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+38
+SELECT MAX(id) FROM t2;
+MAX(id)
+38
+INSERT INTO t1 (id) VALUES (10000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+42
+SELECT MAX(id) FROM t1;
+MAX(id)
+42
+INSERT INTO t2 (id) VALUES (1000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+46
+SELECT MAX(id) FROM t2;
+MAX(id)
+46
+connection slave1_1;
+SELECT id FROM t1 ORDER BY id;
+id
+2
+34
+777
+1554
+2331
+10000
+connection master_1;
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection slave1_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for slave1_1
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/handler/r/spider3_fixes_part.result b/storage/spider/mysql-test/spider/handler/r/spider3_fixes_part.result
new file mode 100644
index 00000000..f8747cff
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/r/spider3_fixes_part.result
@@ -0,0 +1,238 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for slave1_1
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection slave1_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+auto_increment with partition
+connection master_1;
+connection slave1_1;
+connection master_1;
+DROP TABLE IF EXISTS t1, t2;
+CREATE TABLE t1 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_P_1
+CREATE TABLE t2 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_P_1
+MASTER_1_AUTO_INCREMENT_INCREMENT2
+MASTER_1_AUTO_INCREMENT_OFFSET2
+spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 4', '',
+'srv "s_2_1"')
+1
+spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 4', '',
+'srv "s_2_2"')
+1
+spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 2', '',
+'srv "s_2_1"')
+1
+spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 3', '',
+'srv "s_2_2"')
+1
+CREATE TABLE t1 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_P_1
+CREATE TABLE t2 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_P_1
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+3
+SELECT MAX(id) FROM t1;
+MAX(id)
+3
+INSERT INTO t2 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+7
+SELECT MAX(id) FROM t2;
+MAX(id)
+7
+MASTER_1_AUTO_INCREMENT_OFFSET3
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+2
+SELECT MAX(id) FROM t1;
+MAX(id)
+7
+MASTER_1_AUTO_INCREMENT_OFFSET4
+INSERT INTO t2 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+6
+SELECT MAX(id) FROM t2;
+MAX(id)
+7
+MASTER_1_AUTO_INCREMENT_OFFSET3
+INSERT INTO t1 () VALUES (),(),(),();
+Warnings:
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+10
+SELECT id FROM t1 ORDER BY id;
+id
+2
+3
+6
+7
+10
+11
+14
+15
+MASTER_1_AUTO_INCREMENT_OFFSET4
+INSERT INTO t2 () VALUES (),(),(),();
+Warnings:
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+18
+SELECT id FROM t2 ORDER BY id;
+id
+2
+3
+6
+7
+10
+11
+14
+15
+18
+19
+22
+23
+TRUNCATE TABLE t1;
+TRUNCATE TABLE t2;
+INSERT INTO t1 () VALUES (),(),(),();
+Warnings:
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+2
+SELECT id FROM t1 ORDER BY id;
+id
+2
+3
+6
+7
+INSERT INTO t2 () VALUES (),(),(),();
+Warnings:
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+10
+SELECT id FROM t2 ORDER BY id;
+id
+2
+3
+6
+7
+10
+11
+14
+15
+SET INSERT_ID=5000;
+MASTER_1_AUTO_INCREMENT_OFFSET3
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+18
+SELECT MAX(id) FROM t1;
+MAX(id)
+18
+MASTER_1_AUTO_INCREMENT_OFFSET4
+INSERT INTO t2 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+19
+SELECT MAX(id) FROM t2;
+MAX(id)
+19
+INSERT INTO t1 (id) VALUES (10000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+22
+SELECT MAX(id) FROM t1;
+MAX(id)
+22
+INSERT INTO t2 (id) VALUES (1000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+26
+SELECT MAX(id) FROM t2;
+MAX(id)
+26
+connection slave1_1;
+SELECT id FROM t1 ORDER BY id;
+id
+2
+18
+777
+1554
+2331
+10000
+connection master_1;
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection slave1_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for slave1_1
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/handler/r/spider_fixes.result b/storage/spider/mysql-test/spider/handler/r/spider_fixes.result
new file mode 100644
index 00000000..c171167a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/r/spider_fixes.result
@@ -0,0 +1,614 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for slave1_1
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection slave1_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+
+create table and insert
+connection master_1;
+DROP TABLE IF EXISTS tb_l;
+CREATE TABLE tb_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+INSERT INTO tb_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+
+2.13
+select table with "order by desc" and "<"
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+WHERE a < 5 ORDER BY a DESC LIMIT 3;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+4	d	2003-11-30 05:01:03
+3	e	2007-06-04 20:03:11
+2	b	2000-01-01 00:00:00
+
+select table with "order by desc" and "<="
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+WHERE a <= 5 ORDER BY a DESC LIMIT 3;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+5	c	2001-12-31 23:59:59
+4	d	2003-11-30 05:01:03
+3	e	2007-06-04 20:03:11
+
+2.14
+update table with range scan and split_read
+connection master_1;
+UPDATE ta_l SET c = '2000-02-02 00:00:00' WHERE a > 1;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-02-02 00:00:00
+3	e	2000-02-02 00:00:00
+4	d	2000-02-02 00:00:00
+5	c	2000-02-02 00:00:00
+
+2.15
+select table with range scan
+TRUNCATE TABLE ta_l;
+DROP TABLE IF EXISTS ta_l;
+connection master_1;
+CREATE TABLE ta_l (
+a int(11) NOT NULL DEFAULT '0',
+b char(1) DEFAULT NULL,
+c datetime DEFAULT NULL,
+PRIMARY KEY (a, b, c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT5_2_1
+INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b >= 'b'
+AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b > 'b'
+AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a >= 4 AND b = 'd'
+AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a > 4 AND b = 'c'
+AND c = '2001-12-31 23:59:59';
+a	b	c
+5	c	2001-12-31 23:59:59
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b <= 'd'
+AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b < 'e'
+AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a <= 4 AND b = 'b'
+AND c = '2000-01-01 00:00:00';
+a	b	c
+2	b	2000-01-01 00:00:00
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a < 4 AND b = 'b'
+AND c = '2000-01-01 00:00:00';
+a	b	c
+2	b	2000-01-01 00:00:00
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b >= 'b'
+AND b <= 'd' AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b > 'b'
+AND b < 'e' AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a <= 4 AND a >= 1
+AND b >= 'b' AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a < 4 AND a > 1
+AND b >= 'b' AND c = '2000-01-01 00:00:00';
+a	b	c
+2	b	2000-01-01 00:00:00
+
+2.16
+auto_increment insert with trigger
+connection master_1;
+CREATE TABLE ta_l_auto_inc (
+a INT AUTO_INCREMENT,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10',
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT3_2_1
+CREATE TABLE tc_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+CREATE TRIGGER ins_ta_l_auto_inc AFTER INSERT ON ta_l_auto_inc FOR EACH ROW BEGIN INSERT INTO tc_l (a, b, c) VALUES (NEW.a, NEW.b, NEW.c); END;;
+connection master_1;
+INSERT INTO ta_l_auto_inc (a, b, c) VALUES
+(NULL, 's', '2008-12-31 20:59:59');
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM tc_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	s	2008-12-31 20:59:59
+
+2.17
+engine-condition-pushdown with "or" and joining
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l WHERE a = 1 OR a IN (SELECT a FROM tb_l);
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+2.23
+index merge
+connection master_1;
+CREATE TABLE ta_l_int (
+a INT AUTO_INCREMENT,
+b INT DEFAULT 10,
+c INT DEFAULT 11,
+PRIMARY KEY(a),
+KEY idx1(b),
+KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1
+INSERT INTO ta_l_int (a, b, c) VALUES (1, 2, 3);
+INSERT INTO ta_l_int (a, b, c) SELECT a + 1, b + 1, c + 1 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 2, b + 2, c + 2 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 4, b + 4, c + 4 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 8, b + 8, c + 8 FROM ta_l_int;
+connection master_1;
+SELECT a, b, c FROM ta_l_int force index(primary, idx1, idx2)
+WHERE a = 5 OR b = 5 OR c = 5 ORDER BY a;
+a	b	c
+3	4	5
+4	5	6
+5	6	7
+
+2.24
+index scan update without PK
+connection master_1;
+DROP TABLE IF EXISTS ta_l_int;
+CREATE TABLE ta_l_int (
+a INT NOT NULL,
+b INT DEFAULT 10,
+c INT DEFAULT 11,
+KEY idx1(b),
+KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1
+SELECT a, b, c FROM ta_l_int ORDER BY a;
+a	b	c
+1	2	3
+2	3	4
+3	4	5
+4	5	6
+5	6	7
+6	7	8
+7	8	9
+8	9	10
+9	10	11
+10	11	12
+11	12	13
+12	13	14
+13	14	15
+14	15	16
+15	16	17
+16	17	18
+INSERT INTO ta_l_int (a, b, c) VALUES (0, 2, 3);
+INSERT INTO ta_l_int (a, b, c) VALUES (18, 2, 3);
+connection master_1;
+UPDATE ta_l_int SET c = 4 WHERE b = 2;
+connection master_1;
+SELECT a, b, c FROM ta_l_int ORDER BY a;
+a	b	c
+1	2	4
+2	3	4
+3	4	5
+4	5	6
+5	6	7
+6	7	8
+7	8	9
+8	9	10
+9	10	11
+10	11	12
+11	12	13
+12	13	14
+13	14	15
+14	15	16
+15	16	17
+16	17	18
+17	2	4
+18	2	4
+
+2.25
+direct order limit
+connection master_1;
+SHOW STATUS LIKE 'Spider_direct_order_limit';
+Variable_name	Value
+Spider_direct_order_limit	2
+SELECT a, b, c FROM ta_l_int ORDER BY a LIMIT 3;
+a	b	c
+1	2	4
+2	3	4
+3	4	5
+SHOW STATUS LIKE 'Spider_direct_order_limit';
+Variable_name	Value
+Spider_direct_order_limit	3
+
+2.26
+lock tables
+connection master_1;
+DROP TABLE IF EXISTS t1;
+DROP TABLE IF EXISTS t2;
+CREATE TABLE t1 (
+id int(11) NOT NULL,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_LOCK1
+CREATE TABLE t2 (
+id int(11) NOT NULL,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_LOCK2
+LOCK TABLES t1 READ, t2 READ;
+UNLOCK TABLES;
+
+auto_increment
+connection master_1;
+connection slave1_1;
+connection master_1;
+DROP TABLE IF EXISTS t1;
+CREATE TABLE t1 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_1
+MASTER_1_AUTO_INCREMENT_INCREMENT2
+MASTER_1_AUTO_INCREMENT_OFFSET2
+spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 4', '',
+'srv "s_2_1"')
+1
+spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 4', '',
+'srv "s_2_2"')
+1
+spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 2', '',
+'srv "s_2_1"')
+1
+spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 3', '',
+'srv "s_2_2"')
+1
+CREATE TABLE t1 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_1
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+2
+SELECT MAX(id) FROM t1;
+MAX(id)
+2
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+6
+SELECT MAX(id) FROM t1;
+MAX(id)
+6
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+10
+SELECT MAX(id) FROM t1;
+MAX(id)
+10
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+14
+SELECT MAX(id) FROM t1;
+MAX(id)
+14
+INSERT INTO t1 () VALUES (),(),(),();
+Warnings:
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+18
+SELECT id FROM t1 ORDER BY id;
+id
+2
+6
+10
+14
+18
+22
+26
+30
+SET INSERT_ID=5000;
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+34
+SELECT MAX(id) FROM t1;
+MAX(id)
+34
+INSERT INTO t1 (id) VALUES (10000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+38
+SELECT MAX(id) FROM t1;
+MAX(id)
+38
+INSERT INTO t1 (id) VALUES (1000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+42
+SELECT MAX(id) FROM t1;
+MAX(id)
+42
+connection slave1_1;
+SELECT id FROM t1 ORDER BY id;
+id
+2
+6
+10
+14
+18
+34
+777
+1000
+1554
+2331
+10000
+connection master_1;
+
+read only
+connection master_1;
+DROP TABLE IF EXISTS t1;
+CREATE TABLE t1 (
+id int(11) NOT NULL,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_READONLY1_1
+SELECT id FROM t1 ORDER BY id;
+id
+2
+6
+10
+14
+18
+22
+26
+30
+34
+38
+42
+INSERT INTO t1 (id) VALUES (1);
+ERROR HY000: Table 'auto_test_local.t1' is read only
+UPDATE t1 SET id = 4 WHERE id = 2;
+ERROR HY000: Table 'auto_test_local.t1' is read only
+DELETE FROM t1 WHERE id = 2;
+ERROR HY000: Table 'auto_test_local.t1' is read only
+DELETE FROM t1;
+ERROR HY000: Table 'auto_test_local.t1' is read only
+TRUNCATE t1;
+ERROR HY000: Table 'auto_test_local.t1' is read only
+
+2.27
+error mode
+connection master_1;
+DROP TABLE IF EXISTS t1;
+CREATE TABLE t1 (
+id int(11) NOT NULL,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_ERROR_MODE1_1
+SELECT id FROM t1 ORDER BY id;
+id
+Warnings:
+Error	12702	Remote table 'auto_test_remote.ter1_1' is not found
+Error	1146	Table 'auto_test_remote.ter1_1' doesn't exist
+INSERT INTO t1 (id) VALUES (1);
+Warnings:
+Error	1146	Table 'auto_test_remote.ter1_1' doesn't exist
+DELETE FROM t1;
+Warnings:
+Error	12702	Remote table 'auto_test_remote.ter1_1' is not found
+Error	12702	Remote table 'auto_test_remote.ter1_1' is not found
+Error	1146	Table 'auto_test_remote.ter1_1' doesn't exist
+TRUNCATE t1;
+Warnings:
+Error	1146	Table 'auto_test_remote.ter1_1' doesn't exist
+
+3.0
+is null
+connection master_1;
+DROP TABLE IF EXISTS t1;
+CREATE TABLE t1 (
+a VARCHAR(255),
+b VARCHAR(255),
+c VARCHAR(255),
+KEY idx1(a,b),
+KEY idx2(b),
+PRIMARY KEY(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_TEXT_KEY1_1
+insert into t1 values (null, null, '2048');
+insert into t1 values ('1', '1', '1');
+insert into t1 select a + 1,   b + 1,   c + 1   from t1;
+insert into t1 select a + 2,   b + 2,   c + 2   from t1;
+insert into t1 select a + 4,   b + 4,   c + 4   from t1;
+insert into t1 select a + 8,   b + 8,   c + 8   from t1;
+insert into t1 select a + 16,  b + 16,  c + 16  from t1;
+insert into t1 select a + 32,  b + 32,  c + 32  from t1;
+insert into t1 select a + 64,  b + 64,  c + 64  from t1;
+insert into t1 select a + 128, b + 128, c + 128 from t1;
+insert into t1 select a + 256, b + 256, c + 256 from t1;
+insert into t1 select a + 512, b + 512, c + 512 from t1;
+flush tables;
+connection master_1;
+select a from t1 where a is null order by a limit 30;
+a
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+select b from t1 where b is null order by b limit 30;
+b
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+
+direct_order_limit
+connection master_1;
+TRUNCATE TABLE t1;
+insert into t1 values ('1', '1', '1');
+insert into t1 select a + 1,   b + 1,   c + 1   from t1;
+insert into t1 select a + 2,   b + 2,   c + 2   from t1;
+insert into t1 select a + 4,   b + 4,   c + 4   from t1;
+insert into t1 select a + 8,   b + 8,   c + 8   from t1;
+insert into t1 select a + 16,  b + 16,  c + 16  from t1;
+insert into t1 select a,       b + 32,  c + 32  from t1;
+insert into t1 select a,       b + 64,  c + 64  from t1;
+insert into t1 select a,       b + 128, c + 128 from t1;
+flush tables;
+connection master_1;
+select a, b, c from t1 where a = '10' and b <> '100' order by c desc limit 5;
+a	b	c
+10	74	74
+10	42	42
+10	234	234
+10	202	202
+10	170	170
+select a, c from t1 where a = '10' order by b desc limit 5;
+a	c
+10	74
+10	42
+10	234
+10	202
+10	170
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection slave1_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for slave1_1
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/handler/r/spider_fixes_part.result b/storage/spider/mysql-test/spider/handler/r/spider_fixes_part.result
new file mode 100644
index 00000000..c99c0207
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/r/spider_fixes_part.result
@@ -0,0 +1,241 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for slave1_1
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection slave1_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+connection master_1;
+DROP TABLE IF EXISTS tb_l;
+CREATE TABLE tb_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+INSERT INTO tb_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+2.17
+partition with sort
+connection master_1;
+CREATE TABLE ta_l2 (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1
+INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 WHERE a > 1
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+2.23
+partition update with moving partition
+connection master_1;
+DROP TABLE IF EXISTS ta_l2;
+connection master_1;
+CREATE TABLE ta_l2 (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1
+INSERT INTO ta_l2 (a, b, c) VALUES (3, 'B', '2010-09-26 00:00:00');
+UPDATE ta_l2 SET a = 4 WHERE a = 3;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+4	B	2010-09-26 00:00:00
+index merge with partition
+connection master_1;
+DROP TABLE IF EXISTS ta_l_int;
+connection master_1;
+CREATE TABLE ta_l_int (
+a INT AUTO_INCREMENT,
+b INT DEFAULT 10,
+c INT DEFAULT 11,
+PRIMARY KEY(a),
+KEY idx1(b),
+KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT3_P_2_1
+INSERT INTO ta_l_int (a, b, c) VALUES (1, 2, 3);
+INSERT INTO ta_l_int (a, b, c) SELECT a + 1, b + 1, c + 1 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 2, b + 2, c + 2 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 4, b + 4, c + 4 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 8, b + 8, c + 8 FROM ta_l_int;
+connection master_1;
+SELECT a, b, c FROM ta_l_int force index(primary, idx1, idx2)
+WHERE a = 5 OR b = 5 OR c = 5 ORDER BY a;
+a	b	c
+3	4	5
+4	5	6
+5	6	7
+
+2.26
+auto_increment with partition
+connection master_1;
+connection slave1_1;
+connection master_1;
+DROP TABLE IF EXISTS t1;
+CREATE TABLE t1 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_P_1
+MASTER_1_AUTO_INCREMENT_INCREMENT2
+MASTER_1_AUTO_INCREMENT_OFFSET2
+spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 4', '',
+'srv "s_2_1"')
+1
+spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 4', '',
+'srv "s_2_2"')
+1
+spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 2', '',
+'srv "s_2_1"')
+1
+spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 3', '',
+'srv "s_2_2"')
+1
+CREATE TABLE t1 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_P_1
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+3
+SELECT MAX(id) FROM t1;
+MAX(id)
+3
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+2
+SELECT MAX(id) FROM t1;
+MAX(id)
+3
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+7
+SELECT MAX(id) FROM t1;
+MAX(id)
+7
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+6
+SELECT MAX(id) FROM t1;
+MAX(id)
+7
+INSERT INTO t1 () VALUES (),(),(),();
+Warnings:
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+10
+SELECT id FROM t1 ORDER BY id;
+id
+2
+3
+6
+7
+10
+11
+14
+15
+SET INSERT_ID=5000;
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+18
+SELECT MAX(id) FROM t1;
+MAX(id)
+18
+INSERT INTO t1 (id) VALUES (10000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+22
+SELECT MAX(id) FROM t1;
+MAX(id)
+22
+INSERT INTO t1 (id) VALUES (1000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+26
+SELECT MAX(id) FROM t1;
+MAX(id)
+26
+connection slave1_1;
+SELECT id FROM t1 ORDER BY id;
+id
+2
+3
+6
+7
+10
+18
+777
+1000
+1554
+2331
+10000
+connection master_1;
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection slave1_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for slave1_1
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/handler/r/vp_fixes.result b/storage/spider/mysql-test/spider/handler/r/vp_fixes.result
new file mode 100644
index 00000000..cc0e4105
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/r/vp_fixes.result
@@ -0,0 +1,93 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+
+create table and insert
+connection master_1;
+DROP TABLE IF EXISTS tb_l;
+CREATE TABLE tb_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+INSERT INTO tb_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+
+0.9
+create different primary key table
+connection master_1;
+CREATE TABLE ta_l_int (
+a INT DEFAULT 10,
+b INT AUTO_INCREMENT,
+c INT DEFAULT 11,
+PRIMARY KEY(b)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1
+connection master_1;
+INSERT INTO ta_l_int (a, b, c) VALUES (2, NULL, 3);
+create un-correspond primary key table
+connection master_1;
+DROP TABLE IF EXISTS ta_l_int;
+connection master_1;
+CREATE TABLE ta_l_int (
+a INT DEFAULT 10,
+b INT DEFAULT 12,
+c INT DEFAULT 11,
+PRIMARY KEY(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1
+connection master_1;
+INSERT INTO ta_l_int (a, b, c) VALUES (2, NULL, 3);
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/handler/suite.opt b/storage/spider/mysql-test/spider/handler/suite.opt
new file mode 100644
index 00000000..48457b17
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/suite.opt
@@ -0,0 +1 @@
+--loose-innodb
diff --git a/storage/spider/mysql-test/spider/handler/suite.pm b/storage/spider/mysql-test/spider/handler/suite.pm
new file mode 100644
index 00000000..af267d04
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/suite.pm
@@ -0,0 +1,10 @@
+package My::Suite::Spider;
+
+@ISA = qw(My::Suite);
+
+return "No Spider engine" unless $ENV{HA_SPIDER_SO};
+return "Not run for embedded server" if $::opt_embedded_server;
+
+sub is_default { 1 }
+
+bless { };
diff --git a/storage/spider/mysql-test/spider/handler/t/basic_sql.test b/storage/spider/mysql-test/spider/handler/t/basic_sql.test
new file mode 100644
index 00000000..5bb04004
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/basic_sql.test
@@ -0,0 +1,2699 @@
+# This test tests by executing basic SQL
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tb_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+eval CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+--enable_query_log
+INSERT INTO tb_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+SELECT a, b, c FROM tb_l;
+if ($MASTER_1_MERGE)
+{
+  --error ER_WRONG_OBJECT
+  eval CREATE TABLE ta_l (
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1
+  SELECT a, b, c FROM tb_l;
+  eval CREATE TABLE ta_l (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+  INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+}
+if (!$MASTER_1_MERGE)
+{
+  eval CREATE TABLE ta_l (
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1
+  SELECT a, b, c FROM tb_l;
+}
+--enable_query_log
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo create table ignore select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+DROP TABLE IF EXISTS tb_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+eval CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+--enable_query_log
+INSERT INTO tb_l (a, b, c) VALUES
+  (1, 'f', '2008-07-01 10:21:39'),
+  (2, 'g', '2000-02-01 00:00:00'),
+  (3, 'j', '2007-05-04 20:03:11'),
+  (4, 'i', '2003-10-30 05:01:03'),
+  (5, 'h', '2001-10-31 23:59:59');
+--disable_query_log
+echo CREATE TABLE ta_l (
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+IGNORE SELECT a, b, c FROM tb_l;
+if ($MASTER_1_MERGE)
+{
+  --error ER_WRONG_OBJECT
+  eval CREATE TABLE ta_l (
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1
+  IGNORE SELECT a, b, c FROM tb_l;
+  eval CREATE TABLE ta_l (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+  INSERT IGNORE INTO ta_l SELECT a, b, c FROM tb_l;
+}
+if (!$MASTER_1_MERGE)
+{
+  eval CREATE TABLE ta_l (
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1
+  IGNORE SELECT a, b, c FROM tb_l;
+}
+--enable_query_log
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo create table ignore select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+REPLACE SELECT a, b, c FROM tb_l;
+if ($MASTER_1_MERGE)
+{
+  --error ER_WRONG_OBJECT
+  eval CREATE TABLE ta_l (
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1
+  REPLACE SELECT a, b, c FROM tb_l;
+  eval CREATE TABLE ta_l (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+  REPLACE INTO ta_l SELECT a, b, c FROM tb_l;
+}
+if (!$MASTER_1_MERGE)
+{
+  eval CREATE TABLE ta_l (
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1
+  REPLACE SELECT a, b, c FROM tb_l;
+}
+--enable_query_log
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%replace %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo create no index table
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES3;
+    echo CHILD2_1_CREATE_TABLES3;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES3;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES3;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l_no_idx;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l_no_idx
+MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT2_2_1
+SELECT a, b, c FROM tb_l;
+if ($MASTER_1_NEEDPK)
+{
+  --error ER_REQUIRES_PRIMARY_KEY
+  eval CREATE TABLE ta_l_no_idx
+  $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT2_2_1
+  SELECT a, b, c FROM tb_l;
+  eval CREATE TABLE ta_l_no_idx (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT2_2_1;
+  INSERT INTO ta_l_no_idx SELECT a, b, c FROM tb_l;
+}
+if (!$MASTER_1_NEEDPK)
+{
+  if ($MASTER_1_MERGE)
+  {
+    --error ER_WRONG_OBJECT
+    eval CREATE TABLE ta_l_no_idx
+    $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT2_2_1
+    SELECT a, b, c FROM tb_l;
+    eval CREATE TABLE ta_l_no_idx (
+      a INT,
+      b CHAR(1),
+      c DATETIME
+    ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT2_2_1;
+    INSERT INTO ta_l_no_idx SELECT a, b, c FROM tb_l;
+  }
+  if (!$MASTER_1_MERGE)
+  {
+    eval CREATE TABLE ta_l_no_idx
+    $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT2_2_1
+    SELECT a, b, c FROM tb_l;
+  }
+}
+--enable_query_log
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES3;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l_no_idx ORDER BY a;
+
+--echo
+--echo select table
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select table shared mode
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a
+LOCK IN SHARE MODE;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select table for update
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a
+FOR UPDATE;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select table join
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a.a, a.b, date_format(b.c, '%Y-%m-%d %H:%i:%s') FROM ta_l a, tb_l b
+WHERE a.a = b.a ORDER BY a.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select table straight_join
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT STRAIGHT_JOIN a.a, a.b, date_format(b.c, '%Y-%m-%d %H:%i:%s')
+FROM ta_l a, tb_l b WHERE a.a = b.a ORDER BY a.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select sql_small_result
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT SQL_SMALL_RESULT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select sql_big_result
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT SQL_BIG_RESULT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select sql_buffer_result
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT SQL_BUFFER_RESULT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select sql_cache
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT SQL_CACHE a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select sql_no_cache
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT SQL_NO_CACHE a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select sql_calc_found_rows
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT SQL_CALC_FOUND_ROWS a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a LIMIT 4;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT found_rows();
+
+--echo
+--echo select high_priority
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT HIGH_PRIORITY a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select distinct
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT DISTINCT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select count
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT count(*) FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select table join not use index
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM tb_l a WHERE
+EXISTS (SELECT * FROM ta_l b WHERE b.b = a.b) ORDER BY a.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select using pushdown
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l a WHERE
+a.b = 'g' ORDER BY a.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select using index and pushdown
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l a WHERE
+a.a > 0 AND a.b = 'g' ORDER BY a.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo insert
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert select
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT INTO ta_l (a, b, c) SELECT a, b, c FROM tb_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert select a
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT INTO ta_l (a, b, c) VALUES ((SELECT a FROM tb_l ORDER BY a LIMIT 1),
+'e', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert low_priority
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT LOW_PRIORITY INTO ta_l (a, b, c) values (2, 'e', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert high_priority
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT HIGH_PRIORITY INTO ta_l (a, b, c) VALUES (2, 'e',
+'2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert ignore
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT IGNORE INTO ta_l (a, b, c) VALUES (2, 'd', '2009-02-02 01:01:01');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert update (insert)
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59') ON DUPLICATE
+KEY UPDATE b = 'f', c = '2005-08-08 11:11:11';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%update %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert update (update)
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59') ON DUPLICATE
+KEY UPDATE b = 'f', c = '2005-08-08 11:11:11';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%update %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo replace
+--connection master_1
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+REPLACE INTO ta_l (a, b, c) VALUES (2, 'f', '2008-02-02 02:02:02');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'replace %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo replace select
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+REPLACE INTO ta_l (a, b, c) SELECT a, b, c FROM tb_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'replace %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo replace select a
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+REPLACE INTO ta_l (a, b, c) VALUES ((SELECT a FROM tb_l ORDER BY a LIMIT 1),
+'e', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'replace %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo replace low_priority
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+REPLACE LOW_PRIORITY INTO ta_l (a, b, c) VALUES (3, 'g',
+'2009-03-03 03:03:03');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'replace %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l SET b = 'f', c = '2008-02-02 02:02:02' WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update select
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l SET b = 'g', c = '2009-03-03 03:03:03' WHERE a IN (SELECT a FROM
+tb_l);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update select a
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l SET b = 'h', c = '2010-04-04 04:04:04' WHERE a = (SELECT a FROM
+tb_l ORDER BY a LIMIT 1);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update join
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l a, tb_l b SET a.b = b.b, a.c = b.c WHERE a.a = b.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update join a
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l a, tb_l b SET a.b = 'g', a.c = '2009-03-03 03:03:03' WHERE
+a.a = b.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update low_priority
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE LOW_PRIORITY ta_l SET b = 'f', c = '2008-02-02 02:02:02' WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update ignore
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE IGNORE ta_l SET a = 1, b = 'g', c = '2009-03-03 03:03:03' WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update pushdown
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+update ta_l set b = 'j', c = '2009-03-03 03:03:03' where b = 'f';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update index pushdown
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l SET b = 'g', c = '2009-03-03 03:03:03' WHERE a > 0 AND b = 'j';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE FROM ta_l WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete all
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE FROM ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete select
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE FROM ta_l WHERE a IN (SELECT a FROM tb_l);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete select a
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE FROM ta_l WHERE a = (SELECT a FROM tb_l ORDER BY a LIMIT 1);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete join
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE a FROM ta_l a, (SELECT a FROM tb_l ORDER BY a) b WHERE a.a = b.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete low_priority
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE LOW_PRIORITY FROM ta_l WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete ignore
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE IGNORE FROM ta_l WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete quick
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE QUICK FROM ta_l WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete pushdown
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE FROM ta_l WHERE b = 'e';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete index pushdown
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE FROM ta_l WHERE a > 0 AND b = 'e';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo truncate
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'truncate %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/handler/t/basic_sql_part.test b/storage/spider/mysql-test/spider/handler/t/basic_sql_part.test
new file mode 100644
index 00000000..e1638642
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/basic_sql_part.test
@@ -0,0 +1,571 @@
+# This test tests by executing basic SQL
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+if (!$HAVE_PARTITION)
+{
+  --disable_query_log
+  --disable_result_log
+  --source test_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tb_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+eval CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+--enable_query_log
+INSERT INTO tb_l (a, b, c) VALUES
+  (1, 'f', '2008-07-01 10:21:39'),
+  (2, 'g', '2000-02-01 00:00:00'),
+  (3, 'j', '2007-05-04 20:03:11'),
+  (4, 'i', '2003-10-30 05:01:03'),
+  (5, 'h', '2001-10-31 23:59:59');
+
+--echo
+--echo create table with partition and select test
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_COMMENT_P_2_1
+  SELECT a, b, c FROM tb_l;
+  if ($MASTER_1_MERGE)
+  {
+    --error ER_WRONG_OBJECT
+    eval CREATE TABLE ta_l2 (
+      PRIMARY KEY(a)
+    ) $MASTER_1_ENGINE $MASTER_1_COMMENT_P_2_1
+    SELECT a, b, c FROM tb_l;
+    eval CREATE TABLE ta_l2 (
+      a INT,
+      b CHAR(1),
+      c DATETIME,
+      PRIMARY KEY(a)
+    ) $MASTER_1_ENGINE $MASTER_1_COMMENT_P_2_1;
+    INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+  }
+  if (!$MASTER_1_MERGE)
+  {
+    eval CREATE TABLE ta_l2 (
+      PRIMARY KEY(a)
+    ) $MASTER_1_ENGINE $MASTER_1_COMMENT_P_2_1
+    SELECT a, b, c FROM tb_l;
+  }
+  --enable_query_log
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+}
+
+--echo
+--echo select partition using pushdown
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 a WHERE
+  a.b = 'g' ORDER BY a.a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo
+--echo select partition using index pushdown
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 a WHERE
+  a.a > 0 AND a.b = 'g' ORDER BY a.a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo
+--echo update partition pushdown
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  UPDATE ta_l2 SET b = 'e', c = '2009-03-03 03:03:03' WHERE b = 'j';
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+}
+
+--echo
+--echo update partition index pushdown
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  UPDATE ta_l2 SET b = 'j', c = '2009-03-03 03:03:03' WHERE a > 0 AND b = 'e';
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+}
+
+--echo
+--echo delete partition pushdown
+if ($HAVE_PARTITION)
+{
+  TRUNCATE TABLE ta_l2;
+  INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  DELETE FROM ta_l2 WHERE b = 'g';
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+}
+
+--echo
+--echo delete partition index pushdown
+if ($HAVE_PARTITION)
+{
+  TRUNCATE TABLE ta_l2;
+  INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  DELETE FROM ta_l2 WHERE a > 0 AND b = 'g';
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/handler/t/connect_child2_1.inc b/storage/spider/mysql-test/spider/handler/t/connect_child2_1.inc
new file mode 100644
index 00000000..cd9b0c9c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/connect_child2_1.inc
@@ -0,0 +1 @@
+--connect (child2_1, localhost, root, , , $CHILD2_1_MYPORT, $CHILD2_1_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/handler/t/connect_child2_2.inc b/storage/spider/mysql-test/spider/handler/t/connect_child2_2.inc
new file mode 100644
index 00000000..e145f66b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/connect_child2_2.inc
@@ -0,0 +1 @@
+--connect (child2_2, localhost, root, , , $CHILD2_2_MYPORT, $CHILD2_2_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/handler/t/connect_child2_3.inc b/storage/spider/mysql-test/spider/handler/t/connect_child2_3.inc
new file mode 100644
index 00000000..d356348d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/connect_child2_3.inc
@@ -0,0 +1 @@
+--connect (child2_3, localhost, root, , , $CHILD2_3_MYPORT, $CHILD2_3_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/handler/t/connect_child3_1.inc b/storage/spider/mysql-test/spider/handler/t/connect_child3_1.inc
new file mode 100644
index 00000000..03e5c188
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/connect_child3_1.inc
@@ -0,0 +1 @@
+--connect (child3_1, localhost, root, , , $CHILD3_1_MYPORT, $CHILD3_1_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/handler/t/connect_child3_2.inc b/storage/spider/mysql-test/spider/handler/t/connect_child3_2.inc
new file mode 100644
index 00000000..d62a7ada
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/connect_child3_2.inc
@@ -0,0 +1 @@
+--connect (child3_2, localhost, root, , , $CHILD3_2_MYPORT, $CHILD3_2_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/handler/t/connect_child3_3.inc b/storage/spider/mysql-test/spider/handler/t/connect_child3_3.inc
new file mode 100644
index 00000000..fb49f5bf
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/connect_child3_3.inc
@@ -0,0 +1 @@
+--connect (child3_3, localhost, root, , , $CHILD3_3_MYPORT, $CHILD3_3_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/handler/t/connect_master_1.inc b/storage/spider/mysql-test/spider/handler/t/connect_master_1.inc
new file mode 100644
index 00000000..0c129ce5
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/connect_master_1.inc
@@ -0,0 +1 @@
+--connect (master_1, localhost, root, , , $MASTER_1_MYPORT, $MASTER_1_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/handler/t/connect_slave1_1.inc b/storage/spider/mysql-test/spider/handler/t/connect_slave1_1.inc
new file mode 100644
index 00000000..45a82274
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/connect_slave1_1.inc
@@ -0,0 +1 @@
+--connect (slave1_1, localhost, root, , , $SLAVE1_1_MYPORT, $SLAVE1_1_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/handler/t/direct_aggregate.test b/storage/spider/mysql-test/spider/handler/t/direct_aggregate.test
new file mode 100644
index 00000000..d65f4c5a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/direct_aggregate.test
@@ -0,0 +1,179 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO ta_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+
+--echo
+--echo direct_aggregating test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+SELECT COUNT(*) FROM ta_l;
+eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+SELECT MAX(a) FROM ta_l;
+eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+SELECT MIN(a) FROM ta_l;
+eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+SELECT MAX(a) FROM ta_l WHERE a < 5;
+eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+SELECT MIN(a) FROM ta_l WHERE a > 1;
+eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%handler %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/handler/t/direct_aggregate_part.test b/storage/spider/mysql-test/spider/handler/t/direct_aggregate_part.test
new file mode 100644
index 00000000..aebf210c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/direct_aggregate_part.test
@@ -0,0 +1,192 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+if (!$HAVE_PARTITION)
+{
+  --disable_query_log
+  --disable_result_log
+  --source test_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo with partition test
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1;
+  eval CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_COMMENT2_P_2_1;
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (1, 'a', '2008-08-01 10:21:39'),
+    (2, 'b', '2000-01-01 00:00:00'),
+    (3, 'e', '2007-06-04 20:03:11'),
+    (4, 'd', '2003-11-30 05:01:03'),
+    (5, 'c', '2001-12-31 23:59:59');
+  --enable_query_log
+  eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+  SELECT COUNT(*) FROM ta_l2;
+  eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+  SELECT MAX(a) FROM ta_l2;
+  eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+  SELECT MIN(a) FROM ta_l2;
+  eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+  SELECT MAX(a) FROM ta_l2 WHERE a < 5;
+  eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+  SELECT MIN(a) FROM ta_l2 WHERE a > 1;
+  eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%handler %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%handler %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/handler/t/direct_update.test b/storage/spider/mysql-test/spider/handler/t/direct_update.test
new file mode 100644
index 00000000..e0901062
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/direct_update.test
@@ -0,0 +1,198 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO ta_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+
+--echo
+--echo direct_updating test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo update all rows with function
+UPDATE ta_l SET c = ADDDATE(c, 1);
+eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo update by primary key
+UPDATE ta_l SET b = 'x' WHERE a = 3;
+eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo update by a column without index
+UPDATE ta_l SET c = '2011-10-17' WHERE b = 'x';
+eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo update by primary key with order and limit
+UPDATE ta_l SET c = ADDDATE(c, 1) WHERE a < 4 ORDER BY b DESC LIMIT 1;
+eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo delete by primary key with order and limit
+DELETE FROM ta_l WHERE a < 4 ORDER BY c LIMIT 1;
+eval $MASTER_1_CHECK_DIRECT_DELETE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo delete by a column without index
+DELETE FROM ta_l WHERE b = 'c';
+eval $MASTER_1_CHECK_DIRECT_DELETE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo delete by primary key
+DELETE FROM ta_l WHERE a = 3;
+eval $MASTER_1_CHECK_DIRECT_DELETE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%handler %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/handler/t/direct_update_part.test b/storage/spider/mysql-test/spider/handler/t/direct_update_part.test
new file mode 100644
index 00000000..95e2e2ab
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/direct_update_part.test
@@ -0,0 +1,211 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+if (!$HAVE_PARTITION)
+{
+  --disable_query_log
+  --disable_result_log
+  --source test_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo with partition test
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1;
+  eval CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_COMMENT2_P_2_1;
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (1, 'a', '2008-08-01 10:21:39'),
+    (2, 'b', '2000-01-01 00:00:00'),
+    (3, 'e', '2007-06-04 20:03:11'),
+    (4, 'd', '2003-11-30 05:01:03'),
+    (5, 'c', '2001-12-31 23:59:59');
+  --enable_query_log
+  eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo update all rows with function
+  UPDATE ta_l2 SET c = ADDDATE(c, 1);
+  eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo update by primary key
+  UPDATE ta_l2 SET b = 'x' WHERE a = 3;
+  eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo update by a column without index
+  UPDATE ta_l2 SET c = '2011-10-17' WHERE b = 'x';
+  eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo update by primary key with order and limit
+  UPDATE ta_l2 SET c = ADDDATE(c, 1) WHERE a < 4 ORDER BY b DESC LIMIT 1;
+  eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo delete by primary key with order and limit
+  DELETE FROM ta_l2 WHERE a < 4 ORDER BY c LIMIT 1;
+  eval $MASTER_1_CHECK_DIRECT_DELETE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo delete by a column without index
+  DELETE FROM ta_l2 WHERE b = 'c';
+  eval $MASTER_1_CHECK_DIRECT_DELETE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo delete by primary key
+  DELETE FROM ta_l2 WHERE a = 3;
+  eval $MASTER_1_CHECK_DIRECT_DELETE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%handler %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%handler %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/handler/t/function.test b/storage/spider/mysql-test/spider/handler/t/function.test
new file mode 100644
index 00000000..ec2eeab9
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/function.test
@@ -0,0 +1,253 @@
+# This test tests for using functions
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo in()
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_result_log
+  }
+  --disable_query_log
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    echo CHILD2_1_DROP_TEXT_PK_TABLES1;
+    echo CHILD2_1_CREATE_TEXT_PK_TABLES1;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TEXT_PK_TABLES1;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TEXT_PK_TABLES1;
+  --enable_query_log
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_query_log
+echo CREATE TABLE t1 (
+  a VARCHAR(255),
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET3 MASTER_1_COMMENT_TEXT_PK1_1;
+eval CREATE TABLE t1 (
+  a VARCHAR(255),
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET3 $MASTER_1_COMMENT_TEXT_PK1_1;
+--enable_query_log
+insert into t1 values ('1');
+insert into t1 select a + 1 from t1;
+insert into t1 select a + 2 from t1;
+insert into t1 select a + 4 from t1;
+insert into t1 select a + 8 from t1;
+insert into t1 select a + 16 from t1;
+insert into t1 select a + 32 from t1;
+insert into t1 select a + 64 from t1;
+insert into t1 select a + 128 from t1;
+insert into t1 select a + 256 from t1;
+insert into t1 select a + 512 from t1;
+flush tables;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+select a from t1 where a in ('15', '120');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TEXT_PK_TABLES1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo date_sub()
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO ta_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 YEAR);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 QUARTER);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 MONTH);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 WEEK);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 DAY);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 HOUR);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 MINUTE);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 SECOND);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/handler/t/ha.test b/storage/spider/mysql-test/spider/handler/t/ha.test
new file mode 100644
index 00000000..c12930e4
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/ha.test
@@ -0,0 +1,878 @@
+# This test tests for ha features
+if ($USE_HA_TEST)
+{
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--source ha_test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+  --connection child2_3
+  DROP DATABASE IF EXISTS auto_test_remote3;
+  CREATE DATABASE auto_test_remote3;
+  USE auto_test_remote3;
+}
+if ($USE_CHILD_GROUP3)
+{
+  --connection child3_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+  --connection child3_2
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+  --connection child3_3
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  --connection child2_3
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  SELECT 1;
+  --connection child3_2
+  SELECT 1;
+  --connection child3_3
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_2_DROP_TABLES;
+    echo CHILD2_2_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_2_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_2_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  --disable_warnings
+  eval $CHILD3_1_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  eval $CHILD3_1_CREATE_TABLES_HA_2_1;
+  --connection child3_2
+  --disable_warnings
+  eval $CHILD3_2_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  eval $CHILD3_2_CREATE_TABLES_HA_2_1;
+  --connection child3_3
+  --disable_warnings
+  eval $CHILD3_3_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  eval $CHILD3_3_CREATE_TABLES_HA_2_1;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_HA_2_1;
+--enable_query_log
+INSERT INTO ta_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+
+--echo
+--echo select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo fail-over test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_2_HA_DROP_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_2_HA_DROP_TABLES;
+  --enable_warnings
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_CHECK_HA_STATUS;
+--error 12511
+INSERT INTO ta_l (a, b, c) VALUES
+  (6, 'e', '2011-05-05 20:04:05');
+eval $MASTER_1_CHECK_LINK_STATUS;
+eval $MASTER_1_CHECK_LINK_FAILED_LOG;
+eval $MASTER_1_CHECK_HA_STATUS;
+INSERT INTO ta_l (a, b, c) VALUES
+  (6, 'e', '2011-05-05 20:04:05');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  eval $CHILD3_1_CHECK_LINK_STATUS;
+  eval $CHILD3_1_CHECK_LINK_FAILED_LOG;
+  --connection child3_2
+  eval $CHILD3_2_CHECK_LINK_STATUS;
+  eval $CHILD3_2_CHECK_LINK_FAILED_LOG;
+  --connection child3_3
+  eval $CHILD3_3_CHECK_LINK_STATUS;
+  eval $CHILD3_3_CHECK_LINK_FAILED_LOG;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo recovery test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_2_HA_CREATE_TABLES;
+  }
+  eval $CHILD2_2_HA_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  eval $CHILD3_1_SET_RECOVERY_STATUS_2_1;
+  eval $CHILD3_1_CHECK_LINK_STATUS;
+  --connection child3_2
+  eval $CHILD3_2_SET_RECOVERY_STATUS_2_1;
+  eval $CHILD3_2_CHECK_LINK_STATUS;
+  --connection child3_3
+  eval $CHILD3_3_SET_RECOVERY_STATUS_2_1;
+  eval $CHILD3_3_CHECK_LINK_STATUS;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_SET_RECOVERY_STATUS_2_1;
+eval $MASTER_1_CHECK_LINK_STATUS;
+eval $MASTER_1_COPY_TABLES_2_1;
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  eval $CHILD3_1_SET_OK_STATUS_2_1;
+  eval $CHILD3_1_CHECK_LINK_STATUS;
+  --connection child3_2
+  eval $CHILD3_2_SET_OK_STATUS_2_1;
+  eval $CHILD3_2_CHECK_LINK_STATUS;
+  --connection child3_3
+  eval $CHILD3_3_SET_OK_STATUS_2_1;
+  eval $CHILD3_3_CHECK_LINK_STATUS;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_SET_OK_STATUS_2_1;
+eval $MASTER_1_CHECK_LINK_STATUS;
+INSERT INTO ta_l (a, b, c) VALUES
+  (8, 'g', '2011-05-05 21:33:30');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+DROP TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  --disable_warnings
+  eval $CHILD3_1_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  --connection child3_2
+  --disable_warnings
+  eval $CHILD3_2_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  --connection child3_3
+  --disable_warnings
+  eval $CHILD3_3_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+eval $MASTER_1_CHANGE_HA_MON;
+
+--echo
+--echo active standby test
+--echo create table test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_2_DROP_TABLES;
+    echo CHILD2_2_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_2_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_2_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  --disable_warnings
+  eval $CHILD3_1_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  eval $CHILD3_1_CREATE_TABLES_HA_AS_2_1;
+  --connection child3_2
+  --disable_warnings
+  eval $CHILD3_2_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  eval $CHILD3_2_CREATE_TABLES_HA_AS_2_1;
+  --connection child3_3
+  --disable_warnings
+  eval $CHILD3_3_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  eval $CHILD3_3_CREATE_TABLES_HA_AS_2_1;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_AS_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_HA_AS_2_1;
+--enable_query_log
+INSERT INTO ta_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+
+--echo
+--echo select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo fail-over test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_HA_AS_DROP_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_HA_AS_DROP_TABLES;
+  --enable_warnings
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_CHECK_HA_STATUS;
+--error 12511
+INSERT INTO ta_l (a, b, c) VALUES
+  (6, 'e', '2011-05-05 20:04:05');
+eval $MASTER_1_CHECK_LINK_STATUS;
+eval $MASTER_1_CHECK_LINK_FAILED_LOG;
+eval $MASTER_1_CHECK_HA_STATUS;
+INSERT INTO ta_l (a, b, c) VALUES
+  (6, 'e', '2011-05-05 20:04:05');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  eval $CHILD3_1_CHECK_LINK_STATUS;
+  eval $CHILD3_1_CHECK_LINK_FAILED_LOG;
+  --connection child3_2
+  eval $CHILD3_2_CHECK_LINK_STATUS;
+  eval $CHILD3_2_CHECK_LINK_FAILED_LOG;
+  --connection child3_3
+  eval $CHILD3_3_CHECK_LINK_STATUS;
+  eval $CHILD3_3_CHECK_LINK_FAILED_LOG;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo recovery test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_HA_AS_CREATE_TABLES;
+  }
+  eval $CHILD2_1_HA_AS_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  eval $CHILD3_1_SET_OK_STATUS_AS_2_1;
+  eval $CHILD3_1_CHECK_LINK_STATUS;
+  --connection child3_2
+  eval $CHILD3_2_SET_OK_STATUS_AS_2_1;
+  eval $CHILD3_2_CHECK_LINK_STATUS;
+  --connection child3_3
+  eval $CHILD3_3_SET_OK_STATUS_AS_2_1;
+  eval $CHILD3_3_CHECK_LINK_STATUS;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_SET_OK_STATUS_AS_2_1;
+eval $MASTER_1_CHECK_LINK_STATUS;
+INSERT INTO ta_l (a, b, c) VALUES
+  (8, 'g', '2011-05-05 21:33:30');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+DROP TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  --disable_warnings
+  eval $CHILD3_1_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  --connection child3_2
+  --disable_warnings
+  eval $CHILD3_2_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  --connection child3_3
+  --disable_warnings
+  eval $CHILD3_3_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+eval $MASTER_1_CHANGE_HA_MON;
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  --connection child2_3
+  DROP DATABASE IF EXISTS auto_test_remote3;
+}
+if ($USE_CHILD_GROUP3)
+{
+  --connection child3_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  --connection child3_2
+  DROP DATABASE IF EXISTS auto_test_local;
+  --connection child3_3
+  DROP DATABASE IF EXISTS auto_test_local;
+}
+--disable_query_log
+--disable_result_log
+--source ha_test_deinit.inc
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+}
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/handler/t/ha_part.test b/storage/spider/mysql-test/spider/handler/t/ha_part.test
new file mode 100644
index 00000000..72ddcfd1
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/ha_part.test
@@ -0,0 +1,1017 @@
+# This test tests for ha features
+if ($USE_HA_TEST)
+{
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--source ha_test_init.inc
+--enable_result_log
+--enable_query_log
+if (!$HAVE_PARTITION)
+{
+  --disable_query_log
+  --disable_result_log
+  --source ha_test_deinit.inc
+  --source test_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+  --connection child2_3
+  DROP DATABASE IF EXISTS auto_test_remote3;
+  CREATE DATABASE auto_test_remote3;
+  USE auto_test_remote3;
+}
+if ($USE_CHILD_GROUP3)
+{
+  --connection child3_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+  --connection child3_2
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+  --connection child3_3
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  --connection child2_3
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  SELECT 1;
+  --connection child3_2
+  SELECT 1;
+  --connection child3_3
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+if ($HAVE_PARTITION)
+{
+  --echo
+  --echo create table with partition test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES;
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES;
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES;
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_3_DROP_TABLES;
+      echo CHILD2_3_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_3_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_3_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    --disable_warnings
+    eval $CHILD3_1_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    eval $CHILD3_1_CREATE_TABLES_HA_P_2_1;
+    --connection child3_2
+    --disable_warnings
+    eval $CHILD3_2_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    eval $CHILD3_2_CREATE_TABLES_HA_P_2_1;
+    --connection child3_3
+    --disable_warnings
+    eval $CHILD3_3_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    eval $CHILD3_3_CREATE_TABLES_HA_P_2_1;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_warnings
+  DROP TABLE IF EXISTS ta_l2;
+  --enable_warnings
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_P_2_1;
+  eval CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_HA_P_2_1;
+  --enable_query_log
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (1, 'a', '2008-08-01 10:21:39'),
+    (2, 'b', '2000-01-01 00:00:00'),
+    (3, 'e', '2007-06-04 20:03:11'),
+    (4, 'd', '2003-11-30 05:01:03'),
+    (5, 'c', '2001-12-31 23:59:59');
+
+  --echo
+  --echo select test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    eval $CHILD2_1_SELECT_TABLES2;
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_3_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+
+  --echo
+  --echo fail-over test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_3_HA_DROP_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_3_HA_DROP_TABLES;
+    --enable_warnings
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  eval $MASTER_1_CHECK_HA_STATUS;
+  --error 12511
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (6, 'e', '2011-05-05 20:04:05');
+  eval $MASTER_1_CHECK_LINK_STATUS;
+  eval $MASTER_1_CHECK_LINK_FAILED_LOG;
+  eval $MASTER_1_CHECK_HA_STATUS;
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (6, 'e', '2011-05-05 20:04:05');
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    eval $CHILD2_1_SELECT_TABLES2;
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    eval $CHILD3_1_CHECK_LINK_STATUS;
+    eval $CHILD3_1_CHECK_LINK_FAILED_LOG;
+    --connection child3_2
+    eval $CHILD3_2_CHECK_LINK_STATUS;
+    eval $CHILD3_2_CHECK_LINK_FAILED_LOG;
+    --connection child3_3
+    eval $CHILD3_3_CHECK_LINK_STATUS;
+    eval $CHILD3_3_CHECK_LINK_FAILED_LOG;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+
+  --echo
+  --echo recovery test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_3_HA_CREATE_TABLES;
+    }
+    eval $CHILD2_3_HA_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    eval $CHILD3_1_SET_RECOVERY_STATUS_P_2_1;
+    eval $CHILD3_1_CHECK_LINK_STATUS;
+    --connection child3_2
+    eval $CHILD3_2_SET_RECOVERY_STATUS_P_2_1;
+    eval $CHILD3_2_CHECK_LINK_STATUS;
+    --connection child3_3
+    eval $CHILD3_3_SET_RECOVERY_STATUS_P_2_1;
+    eval $CHILD3_3_CHECK_LINK_STATUS;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  eval $MASTER_1_SET_RECOVERY_STATUS_P_2_1;
+  eval $MASTER_1_CHECK_LINK_STATUS;
+  eval $MASTER_1_COPY_TABLES_P_2_1;
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    eval $CHILD3_1_SET_OK_STATUS_P_2_1;
+    eval $CHILD3_1_CHECK_LINK_STATUS;
+    --connection child3_2
+    eval $CHILD3_2_SET_OK_STATUS_P_2_1;
+    eval $CHILD3_2_CHECK_LINK_STATUS;
+    --connection child3_3
+    eval $CHILD3_3_SET_OK_STATUS_P_2_1;
+    eval $CHILD3_3_CHECK_LINK_STATUS;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  eval $MASTER_1_SET_OK_STATUS_P_2_1;
+  eval $MASTER_1_CHECK_LINK_STATUS;
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (8, 'g', '2011-05-05 21:33:30'),
+    (9, 'h', '2011-05-05 22:32:10');
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  DROP TABLE ta_l2;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    eval $CHILD2_1_SELECT_TABLES2;
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_3_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    --disable_warnings
+    eval $CHILD3_1_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    --connection child3_2
+    --disable_warnings
+    eval $CHILD3_2_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    --connection child3_3
+    --disable_warnings
+    eval $CHILD3_3_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+if ($HAVE_PARTITION)
+{
+  --echo
+  --echo create table with partition test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES;
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES;
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES;
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_3_DROP_TABLES;
+      echo CHILD2_3_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_3_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_3_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    --disable_warnings
+    eval $CHILD3_1_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    eval $CHILD3_1_CREATE_TABLES_HA_AS_P_2_1;
+    --connection child3_2
+    --disable_warnings
+    eval $CHILD3_2_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    eval $CHILD3_2_CREATE_TABLES_HA_AS_P_2_1;
+    --connection child3_3
+    --disable_warnings
+    eval $CHILD3_3_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    eval $CHILD3_3_CREATE_TABLES_HA_AS_P_2_1;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_warnings
+  DROP TABLE IF EXISTS ta_l2;
+  --enable_warnings
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_AS_P_2_1;
+  eval CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_HA_AS_P_2_1;
+  --enable_query_log
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (1, 'a', '2008-08-01 10:21:39'),
+    (2, 'b', '2000-01-01 00:00:00'),
+    (3, 'e', '2007-06-04 20:03:11'),
+    (4, 'd', '2003-11-30 05:01:03'),
+    (5, 'c', '2001-12-31 23:59:59');
+
+  --echo
+  --echo select test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    eval $CHILD2_1_SELECT_TABLES2;
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_3_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+
+  --echo
+  --echo fail-over test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_HA_AS_DROP_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_HA_AS_DROP_TABLES2;
+    --enable_warnings
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  eval $MASTER_1_CHECK_HA_STATUS;
+  --error 12511
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (6, 'e', '2011-05-05 20:04:05');
+  eval $MASTER_1_CHECK_LINK_STATUS;
+  eval $MASTER_1_CHECK_LINK_FAILED_LOG;
+  eval $MASTER_1_CHECK_HA_STATUS;
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (6, 'e', '2011-05-05 20:04:05');
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_3_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    eval $CHILD3_1_CHECK_LINK_STATUS;
+    eval $CHILD3_1_CHECK_LINK_FAILED_LOG;
+    --connection child3_2
+    eval $CHILD3_2_CHECK_LINK_STATUS;
+    eval $CHILD3_2_CHECK_LINK_FAILED_LOG;
+    --connection child3_3
+    eval $CHILD3_3_CHECK_LINK_STATUS;
+    eval $CHILD3_3_CHECK_LINK_FAILED_LOG;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+
+  --echo
+  --echo recovery test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_HA_AS_CREATE_TABLES2;
+    }
+    eval $CHILD2_1_HA_AS_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    eval $CHILD3_1_SET_OK_STATUS_AS_P_2_1;
+    eval $CHILD3_1_CHECK_LINK_STATUS;
+    --connection child3_2
+    eval $CHILD3_2_SET_OK_STATUS_AS_P_2_1;
+    eval $CHILD3_2_CHECK_LINK_STATUS;
+    --connection child3_3
+    eval $CHILD3_3_SET_OK_STATUS_AS_P_2_1;
+    eval $CHILD3_3_CHECK_LINK_STATUS;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  eval $MASTER_1_SET_OK_STATUS_AS_P_2_1;
+  eval $MASTER_1_CHECK_LINK_STATUS;
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (8, 'g', '2011-05-05 21:33:30'),
+    (9, 'h', '2011-05-05 22:32:10');
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  DROP TABLE ta_l2;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    eval $CHILD2_1_SELECT_TABLES2;
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_3_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    --disable_warnings
+    eval $CHILD3_1_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    --connection child3_2
+    --disable_warnings
+    eval $CHILD3_2_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    --connection child3_3
+    --disable_warnings
+    eval $CHILD3_3_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  --connection child2_3
+  DROP DATABASE IF EXISTS auto_test_remote3;
+}
+if ($USE_CHILD_GROUP3)
+{
+  --connection child3_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  --connection child3_2
+  DROP DATABASE IF EXISTS auto_test_local;
+  --connection child3_3
+  DROP DATABASE IF EXISTS auto_test_local;
+}
+--disable_query_log
+--disable_result_log
+--source ha_test_deinit.inc
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+}
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/handler/t/ha_test_deinit.inc b/storage/spider/mysql-test/spider/handler/t/ha_test_deinit.inc
new file mode 100644
index 00000000..53d0409d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/ha_test_deinit.inc
@@ -0,0 +1,30 @@
+# get connection and exist engine test
+--echo for master_1
+--connection master_1
+--source ../include/ha_deinit_master_1.inc
+--echo for child2
+if ($USE_CHILD_GROUP2)
+{
+  --echo child2_1
+  --connection child2_1
+  --source ../include/ha_deinit_child2_1.inc
+  --echo child2_2
+  --connection child2_2
+  --source ../include/ha_deinit_child2_2.inc
+  --echo child2_3
+  --connection child2_3
+  --source ../include/ha_deinit_child2_3.inc
+}
+--echo for child3
+if ($USE_CHILD_GROUP3)
+{
+  --echo child3_1
+  --connection child3_1
+  --source ../include/ha_deinit_child3_1.inc
+  --echo child3_2
+  --connection child3_2
+  --source ../include/ha_deinit_child3_2.inc
+  --echo child3_3
+  --connection child3_3
+  --source ../include/ha_deinit_child3_3.inc
+}
diff --git a/storage/spider/mysql-test/spider/handler/t/ha_test_init.inc b/storage/spider/mysql-test/spider/handler/t/ha_test_init.inc
new file mode 100644
index 00000000..70576ab1
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/ha_test_init.inc
@@ -0,0 +1,30 @@
+# get connection and exist engine test
+--echo for master_1
+--connection master_1
+--source ../include/ha_init_master_1.inc
+--echo for child2
+if ($USE_CHILD_GROUP2)
+{
+  --echo child2_1
+  --connection child2_1
+  --source ../include/ha_init_child2_1.inc
+  --echo child2_2
+  --connection child2_2
+  --source ../include/ha_init_child2_2.inc
+  --echo child2_3
+  --connection child2_3
+  --source ../include/ha_init_child2_3.inc
+}
+--echo for child3
+if ($USE_CHILD_GROUP3)
+{
+  --echo child3_1
+  --connection child3_1
+  --source ../include/ha_init_child3_1.inc
+  --echo child3_2
+  --connection child3_2
+  --source ../include/ha_init_child3_2.inc
+  --echo child3_3
+  --connection child3_3
+  --source ../include/ha_init_child3_3.inc
+}
diff --git a/storage/spider/mysql-test/spider/handler/t/have_engine.inc b/storage/spider/mysql-test/spider/handler/t/have_engine.inc
new file mode 100644
index 00000000..64bef749
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/have_engine.inc
@@ -0,0 +1,7 @@
+if (!`SELECT count(*) FROM information_schema.engines WHERE
+      (support = 'YES' OR support = 'DEFAULT') AND
+      engine = '$TEST_ENGINE_TYPE'`)
+{
+  SELECT engine, support FROM information_schema.engines;
+  --let $SKIP_REASON= "Need $TEST_ENGINE_TYPE engine"
+}
diff --git a/storage/spider/mysql-test/spider/handler/t/have_func.inc b/storage/spider/mysql-test/spider/handler/t/have_func.inc
new file mode 100644
index 00000000..e0823e73
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/have_func.inc
@@ -0,0 +1,5 @@
+if (!`SELECT count(*) FROM mysql.func WHERE name = '$TEST_FUNC_NAME'`)
+{
+  SELECT name FROM mysql.func;
+  --let $SKIP_REASON= "Need $TEST_FUNC_NAME function"
+}
diff --git a/storage/spider/mysql-test/spider/handler/t/have_partition.inc b/storage/spider/mysql-test/spider/handler/t/have_partition.inc
new file mode 100644
index 00000000..b6e69947
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/have_partition.inc
@@ -0,0 +1,7 @@
+let $HAVE_PARTITION= 0;
+if (`SELECT count(*) FROM information_schema.plugins WHERE
+      plugin_status = 'ACTIVE' AND
+      plugin_name = 'partition'`)
+{
+  let $HAVE_PARTITION= 1;
+}
diff --git a/storage/spider/mysql-test/spider/handler/t/have_trigger.inc b/storage/spider/mysql-test/spider/handler/t/have_trigger.inc
new file mode 100644
index 00000000..32de484b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/have_trigger.inc
@@ -0,0 +1,2 @@
+let $HAVE_TRIGGER= `SELECT COUNT(*) FROM information_schema.tables
+  WHERE TABLE_SCHEMA = 'information_schema' AND TABLE_NAME = 'TRIGGERS'`;
diff --git a/storage/spider/mysql-test/spider/handler/t/hs_test_deinit.inc b/storage/spider/mysql-test/spider/handler/t/hs_test_deinit.inc
new file mode 100644
index 00000000..7ec2e981
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/hs_test_deinit.inc
@@ -0,0 +1,17 @@
+# get connection and exist engine test
+--echo for master_1
+--connection master_1
+--source ../include/hs_deinit_master_1.inc
+--echo for child2
+if ($USE_CHILD_GROUP2)
+{
+  --echo child2_1
+  --connection child2_1
+  --source ../include/hs_deinit_child2_1.inc
+  --echo child2_2
+  --connection child2_2
+  --source ../include/hs_deinit_child2_2.inc
+  --echo child2_3
+  --connection child2_3
+  --source ../include/hs_deinit_child2_3.inc
+}
diff --git a/storage/spider/mysql-test/spider/handler/t/hs_test_init.inc b/storage/spider/mysql-test/spider/handler/t/hs_test_init.inc
new file mode 100644
index 00000000..831bf479
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/hs_test_init.inc
@@ -0,0 +1,17 @@
+# get connection and exist engine test
+--echo for master_1
+--connection master_1
+--source ../include/hs_init_master_1.inc
+--echo for child2
+if ($USE_CHILD_GROUP2)
+{
+  --echo child2_1
+  --connection child2_1
+  --source ../include/hs_init_child2_1.inc
+  --echo child2_2
+  --connection child2_2
+  --source ../include/hs_init_child2_2.inc
+  --echo child2_3
+  --connection child2_3
+  --source ../include/hs_init_child2_3.inc
+}
diff --git a/storage/spider/mysql-test/spider/handler/t/slave_test_deinit.inc b/storage/spider/mysql-test/spider/handler/t/slave_test_deinit.inc
new file mode 100644
index 00000000..e9d99b7a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/slave_test_deinit.inc
@@ -0,0 +1,6 @@
+# get connection and exist engine test
+--echo for slave1_1
+--connection slave1_1
+STOP SLAVE;
+--source ../include/deinit_slave1_1.inc
+--disconnect slave1_1
diff --git a/storage/spider/mysql-test/spider/handler/t/slave_test_init.inc b/storage/spider/mysql-test/spider/handler/t/slave_test_init.inc
new file mode 100644
index 00000000..739d8897
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/slave_test_init.inc
@@ -0,0 +1,44 @@
+# get connection and exist engine test
+--echo for slave1_1
+--source connect_slave1_1.inc
+--connection slave1_1
+SET SESSION sql_log_bin= 0;
+--let $SLAVE1_1_SERVER_ID=`SELECT @@global.server_id`
+--let $TEST_ENGINE_TYPE= $SLAVE1_1_ENGINE_TYPE
+--source have_partition.inc
+--source have_trigger.inc
+--source ../include/init_slave1_1.inc
+--source have_engine.inc
+--let $SLAVE1_1_SLAVE_STATUS=`SHOW SLAVE STATUS`
+if (!$SLAVE1_1_SLAVE_STATUS)
+{
+  eval CHANGE MASTER TO
+    MASTER_HOST = '127.0.0.1',
+    MASTER_USER = 'root',
+    MASTER_PASSWORD = '',
+    MASTER_PORT = $MASTER_1_MYPORT
+  ;
+}
+START SLAVE;
+--connection master_1
+call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+--connection slave1_1
+call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+  --connection child2_2
+  call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+  --connection child2_3
+  call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+}
+if ($USE_CHILD_GROUP3)
+{
+  --connection child3_1
+  call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+  --connection child3_2
+  call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+  --connection child3_3
+  call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+}
diff --git a/storage/spider/mysql-test/spider/handler/t/spider3_fixes.test b/storage/spider/mysql-test/spider/handler/t/spider3_fixes.test
new file mode 100644
index 00000000..13fa6f5f
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/spider3_fixes.test
@@ -0,0 +1,292 @@
+# This test tests for Spider 3.0's bug fixes
+source include/have_log_bin.inc;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--source slave_test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+
+--echo
+--echo 3.1
+--echo auto_increment
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_INCREMENT_TABLES1;
+    echo CHILD2_1_CREATE_INCREMENT_TABLES1;
+    echo CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+    echo CHILD2_1_AUTO_INCREMENT_OFFSET2;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_INCREMENT_TABLES1;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_INCREMENT_TABLES1;
+  eval $CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+  eval $CHILD2_1_AUTO_INCREMENT_OFFSET2;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+if ($USE_REPLICATION)
+{
+  save_master_pos;
+  --connection slave1_1
+  sync_with_master;
+  --connection master_1
+  --disable_query_log
+  SET SESSION sql_log_bin= 0;
+  --enable_query_log
+}
+--disable_warnings
+DROP TABLE IF EXISTS t1, t2;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE t1 (
+  id int(11) NOT NULL AUTO_INCREMENT,
+  PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_1;
+echo CREATE TABLE t2 (
+  id int(11) NOT NULL AUTO_INCREMENT,
+  PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_1;
+echo MASTER_1_AUTO_INCREMENT_INCREMENT2;
+echo MASTER_1_AUTO_INCREMENT_OFFSET2;
+eval CREATE TABLE t1 (
+  id int(11) NOT NULL AUTO_INCREMENT,
+  PRIMARY KEY (id)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_INCREMENT1_1;
+eval CREATE TABLE t2 (
+  id int(11) NOT NULL AUTO_INCREMENT,
+  PRIMARY KEY (id)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_INCREMENT1_1;
+eval $MASTER_1_AUTO_INCREMENT_INCREMENT2;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET2;
+if ($USE_REPLICATION)
+{
+  SET SESSION sql_log_bin= 1;
+  --connection slave1_1
+  --disable_warnings
+  DROP TABLE IF EXISTS t1, t2;
+  --enable_warnings
+  echo CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_1;
+  echo CREATE TABLE t2 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_1;
+  eval CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $SLAVE1_1_ENGINE $SLAVE1_1_CHARSET $SLAVE1_1_COMMENT_INCREMENT1_1;
+  eval CREATE TABLE t2 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $SLAVE1_1_ENGINE $SLAVE1_1_CHARSET $SLAVE1_1_COMMENT_INCREMENT1_1;
+  --connection master_1
+}
+--enable_query_log
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t2 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t2;
+--disable_query_log
+echo MASTER_1_AUTO_INCREMENT_OFFSET3;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET3;
+--enable_query_log
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+--disable_query_log
+echo MASTER_1_AUTO_INCREMENT_OFFSET4;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET4;
+--enable_query_log
+INSERT INTO t2 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t2;
+--disable_query_log
+echo MASTER_1_AUTO_INCREMENT_OFFSET3;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET3;
+--enable_query_log
+INSERT INTO t1 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+SELECT id FROM t1 ORDER BY id;
+--disable_query_log
+echo MASTER_1_AUTO_INCREMENT_OFFSET4;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET4;
+--enable_query_log
+INSERT INTO t2 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+SELECT id FROM t2 ORDER BY id;
+TRUNCATE TABLE t1;
+TRUNCATE TABLE t2;
+INSERT INTO t1 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+SELECT id FROM t1 ORDER BY id;
+INSERT INTO t2 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+SELECT id FROM t2 ORDER BY id;
+SET INSERT_ID=5000;
+--disable_query_log
+echo MASTER_1_AUTO_INCREMENT_OFFSET3;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET3;
+--enable_query_log
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+--disable_query_log
+echo MASTER_1_AUTO_INCREMENT_OFFSET4;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET4;
+--enable_query_log
+INSERT INTO t2 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t2;
+INSERT INTO t1 (id) VALUES (10000);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t2 (id) VALUES (1000);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t2;
+if ($USE_REPLICATION)
+{
+  save_master_pos;
+  --connection slave1_1
+  sync_with_master;
+  SELECT id FROM t1 ORDER BY id;
+  --connection master_1
+  --disable_query_log
+  SET SESSION sql_log_bin= 0;
+  --enable_query_log
+}
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_INCREMENT_TABLES1;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+    echo CHILD2_1_AUTO_INCREMENT_OFFSET1;
+  }
+  eval $CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+  eval $CHILD2_1_AUTO_INCREMENT_OFFSET1;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source slave_test_deinit.inc
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/handler/t/spider3_fixes_part.test b/storage/spider/mysql-test/spider/handler/t/spider3_fixes_part.test
new file mode 100644
index 00000000..3288c490
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/spider3_fixes_part.test
@@ -0,0 +1,345 @@
+# This test tests for Spider 3.0's bug fixes
+source include/have_log_bin.inc;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--source slave_test_init.inc
+--enable_result_log
+--enable_query_log
+if (!$HAVE_PARTITION)
+{
+  --disable_query_log
+  --disable_result_log
+  --source slave_test_deinit.inc
+  --source test_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+
+--echo auto_increment with partition
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_INCREMENT_TABLES1;
+      echo CHILD2_1_CREATE_INCREMENT_TABLES1;
+      echo CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+      echo CHILD2_1_AUTO_INCREMENT_OFFSET2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_INCREMENT_TABLES1;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_INCREMENT_TABLES1;
+    eval $CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+    eval $CHILD2_1_AUTO_INCREMENT_OFFSET2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_INCREMENT_TABLES1;
+      echo CHILD2_2_CREATE_INCREMENT_TABLES1;
+      echo CHILD2_2_AUTO_INCREMENT_INCREMENT2;
+      echo CHILD2_2_AUTO_INCREMENT_OFFSET2;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_INCREMENT_TABLES1;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_INCREMENT_TABLES1;
+    eval $CHILD2_2_AUTO_INCREMENT_INCREMENT2;
+    eval $CHILD2_2_AUTO_INCREMENT_OFFSET2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  if ($USE_REPLICATION)
+  {
+    save_master_pos;
+    --connection slave1_1
+    sync_with_master;
+    --connection master_1
+    --disable_query_log
+    SET SESSION sql_log_bin= 0;
+    --enable_query_log
+  }
+  --disable_warnings
+  DROP TABLE IF EXISTS t1, t2;
+  --enable_warnings
+  --disable_query_log
+  echo CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_P_1;
+  echo CREATE TABLE t2 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_P_1;
+  echo MASTER_1_AUTO_INCREMENT_INCREMENT2;
+  echo MASTER_1_AUTO_INCREMENT_OFFSET2;
+  eval CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_INCREMENT1_P_1;
+  eval CREATE TABLE t2 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_INCREMENT1_P_1;
+  eval $MASTER_1_AUTO_INCREMENT_INCREMENT2;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET2;
+  if ($USE_REPLICATION)
+  {
+    SET SESSION sql_log_bin= 1;
+    --connection slave1_1
+    --disable_warnings
+    DROP TABLE IF EXISTS t1, t2;
+    --enable_warnings
+    echo CREATE TABLE t1 (
+      id int(11) NOT NULL AUTO_INCREMENT,
+      PRIMARY KEY (id)
+    ) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_P_1;
+    echo CREATE TABLE t2 (
+      id int(11) NOT NULL AUTO_INCREMENT,
+      PRIMARY KEY (id)
+    ) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_P_1;
+    eval CREATE TABLE t1 (
+      id int(11) NOT NULL AUTO_INCREMENT,
+      PRIMARY KEY (id)
+    ) $SLAVE1_1_ENGINE $SLAVE1_1_CHARSET $SLAVE1_1_COMMENT_INCREMENT1_P_1;
+    eval CREATE TABLE t2 (
+      id int(11) NOT NULL AUTO_INCREMENT,
+      PRIMARY KEY (id)
+    ) $SLAVE1_1_ENGINE $SLAVE1_1_CHARSET $SLAVE1_1_COMMENT_INCREMENT1_P_1;
+    --connection master_1
+  }
+  --enable_query_log
+  INSERT INTO t1 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t2 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t2;
+  --disable_query_log
+  echo MASTER_1_AUTO_INCREMENT_OFFSET3;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET3;
+  --enable_query_log
+  INSERT INTO t1 (id) VALUES (null);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  --disable_query_log
+  echo MASTER_1_AUTO_INCREMENT_OFFSET4;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET4;
+  --enable_query_log
+  INSERT INTO t2 (id) VALUES (null);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t2;
+  --disable_query_log
+  echo MASTER_1_AUTO_INCREMENT_OFFSET3;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET3;
+  --enable_query_log
+  INSERT INTO t1 () VALUES (),(),(),();
+  SELECT LAST_INSERT_ID();
+  SELECT id FROM t1 ORDER BY id;
+  --disable_query_log
+  echo MASTER_1_AUTO_INCREMENT_OFFSET4;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET4;
+  --enable_query_log
+  INSERT INTO t2 () VALUES (),(),(),();
+  SELECT LAST_INSERT_ID();
+  SELECT id FROM t2 ORDER BY id;
+  TRUNCATE TABLE t1;
+  TRUNCATE TABLE t2;
+  INSERT INTO t1 () VALUES (),(),(),();
+  SELECT LAST_INSERT_ID();
+  SELECT id FROM t1 ORDER BY id;
+  INSERT INTO t2 () VALUES (),(),(),();
+  SELECT LAST_INSERT_ID();
+  SELECT id FROM t2 ORDER BY id;
+  SET INSERT_ID=5000;
+  --disable_query_log
+  echo MASTER_1_AUTO_INCREMENT_OFFSET3;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET3;
+  --enable_query_log
+  INSERT INTO t1 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  --disable_query_log
+  echo MASTER_1_AUTO_INCREMENT_OFFSET4;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET4;
+  --enable_query_log
+  INSERT INTO t2 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t2;
+  INSERT INTO t1 (id) VALUES (10000);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t2 (id) VALUES (1000);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t2;
+  if ($USE_REPLICATION)
+  {
+    save_master_pos;
+    --connection slave1_1
+    sync_with_master;
+    SELECT id FROM t1 ORDER BY id;
+    --connection master_1
+    --disable_query_log
+    SET SESSION sql_log_bin= 0;
+    --enable_query_log
+  }
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_1_SELECT_INCREMENT_TABLES1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+      echo CHILD2_1_AUTO_INCREMENT_OFFSET1;
+    }
+    eval $CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+    eval $CHILD2_1_AUTO_INCREMENT_OFFSET1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_2_SELECT_INCREMENT_TABLES1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_AUTO_INCREMENT_INCREMENT1;
+      echo CHILD2_2_AUTO_INCREMENT_OFFSET1;
+    }
+    eval $CHILD2_2_AUTO_INCREMENT_INCREMENT1;
+    eval $CHILD2_2_AUTO_INCREMENT_OFFSET1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source slave_test_deinit.inc
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/handler/t/spider_fixes.test b/storage/spider/mysql-test/spider/handler/t/spider_fixes.test
new file mode 100644
index 00000000..04e806fb
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/spider_fixes.test
@@ -0,0 +1,1419 @@
+# This test tests for Spider's bug fixes
+source include/have_log_bin.inc;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--source slave_test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table and insert
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tb_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+eval CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+--enable_query_log
+INSERT INTO tb_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+
+--echo
+--echo 2.13
+--echo select table with "order by desc" and "<"
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+WHERE a < 5 ORDER BY a DESC LIMIT 3;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select table with "order by desc" and "<="
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+WHERE a <= 5 ORDER BY a DESC LIMIT 3;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo 2.14
+--echo update table with range scan and split_read
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l SET c = '2000-02-02 00:00:00' WHERE a > 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo 2.15
+--echo select table with range scan
+TRUNCATE TABLE ta_l;
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES6;
+    echo CHILD2_1_CREATE_TABLES6;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES6;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES6;
+  --enable_query_log
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_query_log
+echo CREATE TABLE ta_l (
+  a int(11) NOT NULL DEFAULT '0',
+  b char(1) DEFAULT NULL,
+  c datetime DEFAULT NULL,
+  PRIMARY KEY (a, b, c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT5_2_1;
+eval CREATE TABLE ta_l (
+  a int(11) NOT NULL DEFAULT '0',
+  b char(1) DEFAULT NULL,
+  c datetime DEFAULT NULL,
+  PRIMARY KEY (a, b, c)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT5_2_1;
+--enable_query_log
+INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b >= 'b'
+AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b > 'b'
+AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a >= 4 AND b = 'd'
+AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a > 4 AND b = 'c'
+AND c = '2001-12-31 23:59:59';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b <= 'd'
+AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b < 'e'
+AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a <= 4 AND b = 'b'
+AND c = '2000-01-01 00:00:00';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a < 4 AND b = 'b'
+AND c = '2000-01-01 00:00:00';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b >= 'b'
+AND b <= 'd' AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b > 'b'
+AND b < 'e' AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a <= 4 AND a >= 1
+AND b >= 'b' AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a < 4 AND a > 1
+AND b >= 'b' AND c = '2000-01-01 00:00:00';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo 2.16
+--echo auto_increment insert with trigger
+if ($HAVE_TRIGGER)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_result_log
+    }
+    --disable_query_log
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      echo CHILD2_1_DROP_TABLES4;
+      echo CHILD2_1_CREATE_TABLES4;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES4;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES4;
+    --enable_query_log
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l_auto_inc (
+    a INT AUTO_INCREMENT,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT3_2_1;
+  eval CREATE TABLE ta_l_auto_inc (
+    a INT AUTO_INCREMENT,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT3_2_1;
+  echo CREATE TABLE tc_l (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+  eval CREATE TABLE tc_l (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+  --enable_query_log
+  --eval CREATE TRIGGER ins_ta_l_auto_inc AFTER INSERT ON ta_l_auto_inc FOR EACH ROW BEGIN INSERT INTO tc_l (a, b, c) VALUES (NEW.a, NEW.b, NEW.c); END;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  INSERT INTO ta_l_auto_inc (a, b, c) VALUES
+  (NULL, 's', '2008-12-31 20:59:59');
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_1_SELECT_TABLES4;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM tc_l ORDER BY a;
+}
+
+--echo
+--echo 2.17
+--echo engine-condition-pushdown with "or" and joining
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l WHERE a = 1 OR a IN (SELECT a FROM tb_l);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo 2.23
+--echo index merge
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_result_log
+  }
+  --disable_query_log
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    echo CHILD2_1_DROP_TABLES5;
+    echo CHILD2_1_CREATE_TABLES5;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES5;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES5;
+  --enable_query_log
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_query_log
+echo CREATE TABLE ta_l_int (
+  a INT AUTO_INCREMENT,
+  b INT DEFAULT 10,
+  c INT DEFAULT 11,
+  PRIMARY KEY(a),
+  KEY idx1(b),
+  KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1;
+eval CREATE TABLE ta_l_int (
+  a INT AUTO_INCREMENT,
+  b INT DEFAULT 10,
+  c INT DEFAULT 11,
+  PRIMARY KEY(a),
+  KEY idx1(b),
+  KEY idx2(c)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+--enable_query_log
+INSERT INTO ta_l_int (a, b, c) VALUES (1, 2, 3);
+INSERT INTO ta_l_int (a, b, c) SELECT a + 1, b + 1, c + 1 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 2, b + 2, c + 2 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 4, b + 4, c + 4 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 8, b + 8, c + 8 FROM ta_l_int;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l_int force index(primary, idx1, idx2)
+WHERE a = 5 OR b = 5 OR c = 5 ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo 2.24
+--echo index scan update without PK
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l_int;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l_int (
+  a INT NOT NULL,
+  b INT DEFAULT 10,
+  c INT DEFAULT 11,
+  KEY idx1(b),
+  KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1;
+if ($MASTER_1_NEEDPK)
+{
+  --error ER_REQUIRES_PRIMARY_KEY
+  eval CREATE TABLE ta_l_int (
+    a INT NOT NULL,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    KEY idx1(b),
+    KEY idx2(c)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+  eval CREATE TABLE ta_l_int (
+    a INT NOT NULL,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    PRIMARY KEY(a),
+    KEY idx1(b),
+    KEY idx2(c)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+}
+if (!$MASTER_1_NEEDPK)
+{
+  eval CREATE TABLE ta_l_int (
+    a INT NOT NULL,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    KEY idx1(b),
+    KEY idx2(c)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+}
+--enable_query_log
+SELECT a, b, c FROM ta_l_int ORDER BY a;
+INSERT INTO ta_l_int (a, b, c) VALUES (0, 2, 3);
+INSERT INTO ta_l_int (a, b, c) VALUES (18, 2, 3);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l_int SET c = 4 WHERE b = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%update %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l_int ORDER BY a;
+
+
+--echo
+--echo 2.25
+--echo direct order limit
+--connection master_1
+eval $MASTER_1_CHECK_DIRECT_ORDER_LIMIT_STATUS;
+SELECT a, b, c FROM ta_l_int ORDER BY a LIMIT 3;
+eval $MASTER_1_CHECK_DIRECT_ORDER_LIMIT_STATUS;
+
+
+--echo
+--echo 2.26
+--echo lock tables
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_LOCK_TABLES1;
+    echo CHILD2_1_DROP_LOCK_TABLES2;
+    echo CHILD2_1_CREATE_LOCK_TABLES1;
+    echo CHILD2_1_CREATE_LOCK_TABLES2;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_LOCK_TABLES1;
+  eval $CHILD2_1_DROP_LOCK_TABLES2;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_LOCK_TABLES1;
+  eval $CHILD2_1_CREATE_LOCK_TABLES2;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_2_DROP_LOCK_TABLES1;
+    echo CHILD2_2_DROP_LOCK_TABLES2;
+    echo CHILD2_2_CREATE_LOCK_TABLES1;
+    echo CHILD2_2_CREATE_LOCK_TABLES2;
+  }
+  --disable_warnings
+  eval $CHILD2_2_DROP_LOCK_TABLES1;
+  eval $CHILD2_2_DROP_LOCK_TABLES2;
+  --enable_warnings
+  eval $CHILD2_2_CREATE_LOCK_TABLES1;
+  eval $CHILD2_2_CREATE_LOCK_TABLES2;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS t1;
+DROP TABLE IF EXISTS t2;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE t1 (
+  id int(11) NOT NULL,
+  PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_LOCK1;
+eval CREATE TABLE t1 (
+  id int(11) NOT NULL,
+  PRIMARY KEY (id)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_LOCK1;
+echo CREATE TABLE t2 (
+  id int(11) NOT NULL,
+  PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_LOCK2;
+eval CREATE TABLE t2 (
+  id int(11) NOT NULL,
+  PRIMARY KEY (id)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_LOCK2;
+--enable_query_log
+LOCK TABLES t1 READ, t2 READ;
+UNLOCK TABLES;
+
+
+--echo
+--echo auto_increment
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_INCREMENT_TABLES1;
+    echo CHILD2_1_CREATE_INCREMENT_TABLES1;
+    echo CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+    echo CHILD2_1_AUTO_INCREMENT_OFFSET2;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_INCREMENT_TABLES1;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_INCREMENT_TABLES1;
+  eval $CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+  eval $CHILD2_1_AUTO_INCREMENT_OFFSET2;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+if ($USE_REPLICATION)
+{
+  save_master_pos;
+  --connection slave1_1
+  sync_with_master;
+  --connection master_1
+  --disable_query_log
+  SET SESSION sql_log_bin= 0;
+  --enable_query_log
+}
+--disable_warnings
+DROP TABLE IF EXISTS t1;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE t1 (
+  id int(11) NOT NULL AUTO_INCREMENT,
+  PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_1;
+echo MASTER_1_AUTO_INCREMENT_INCREMENT2;
+echo MASTER_1_AUTO_INCREMENT_OFFSET2;
+eval CREATE TABLE t1 (
+  id int(11) NOT NULL AUTO_INCREMENT,
+  PRIMARY KEY (id)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_INCREMENT1_1;
+eval $MASTER_1_AUTO_INCREMENT_INCREMENT2;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET2;
+if ($USE_REPLICATION)
+{
+  SET SESSION sql_log_bin= 1;
+  --connection slave1_1
+  --disable_warnings
+  DROP TABLE IF EXISTS t1;
+  --enable_warnings
+  echo CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_1;
+  eval CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $SLAVE1_1_ENGINE $SLAVE1_1_CHARSET $SLAVE1_1_COMMENT_INCREMENT1_1;
+  --connection master_1
+}
+--enable_query_log
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t1 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+SELECT id FROM t1 ORDER BY id;
+SET INSERT_ID=5000;
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t1 (id) VALUES (10000);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t1 (id) VALUES (1000);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+if ($USE_REPLICATION)
+{
+  save_master_pos;
+  --connection slave1_1
+  sync_with_master;
+  SELECT id FROM t1 ORDER BY id;
+  --connection master_1
+  --disable_query_log
+  SET SESSION sql_log_bin= 0;
+  --enable_query_log
+}
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_INCREMENT_TABLES1;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+    echo CHILD2_1_AUTO_INCREMENT_OFFSET1;
+  }
+  eval $CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+  eval $CHILD2_1_AUTO_INCREMENT_OFFSET1;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+
+--echo
+--echo read only
+let $MASTER_1_ENGINE_IS_SPIDER=
+  `SELECT IF('$MASTER_1_ENGINE_TYPE' = 'Spider' OR
+    '$MASTER_1_HIDDEN_ENGINE_TYPE' = 'Spider', 1, 0)`;
+if ($MASTER_1_ENGINE_IS_SPIDER)
+{
+  --connection master_1
+  --disable_warnings
+  DROP TABLE IF EXISTS t1;
+  --enable_warnings
+  --disable_query_log
+  echo CREATE TABLE t1 (
+    id int(11) NOT NULL,
+    PRIMARY KEY (id)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_READONLY1_1;
+  eval CREATE TABLE t1 (
+    id int(11) NOT NULL,
+    PRIMARY KEY (id)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_READONLY1_1;
+  --let $MIN_VAL= `SELECT MIN(id) FROM t1`
+  --enable_query_log
+  SELECT id FROM t1 ORDER BY id;
+  --error 12518
+  INSERT INTO t1 (id) VALUES (1);
+  --error 12518
+  eval UPDATE t1 SET id = 4 WHERE id = $MIN_VAL;
+  --error 12518
+  eval DELETE FROM t1 WHERE id = $MIN_VAL;
+  --error 12518
+  DELETE FROM t1;
+  --error 12518
+  TRUNCATE t1;
+}
+if (!$MASTER_1_ENGINE_IS_SPIDER)
+{
+  --echo skipped
+}
+
+
+--echo
+--echo 2.27
+--echo error mode
+if ($MASTER_1_ENGINE_IS_SPIDER)
+{
+  --connection master_1
+  --disable_warnings
+  DROP TABLE IF EXISTS t1;
+  --enable_warnings
+  --disable_query_log
+  echo CREATE TABLE t1 (
+    id int(11) NOT NULL,
+    PRIMARY KEY (id)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_ERROR_MODE1_1;
+  eval CREATE TABLE t1 (
+    id int(11) NOT NULL,
+    PRIMARY KEY (id)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_ERROR_MODE1_1;
+  --enable_query_log
+  SELECT id FROM t1 ORDER BY id;
+  INSERT INTO t1 (id) VALUES (1);
+  DELETE FROM t1;
+  TRUNCATE t1;
+}
+if (!$MASTER_1_ENGINE_IS_SPIDER)
+{
+  --echo skipped
+}
+
+
+--echo
+--echo 3.0
+--echo is null
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_result_log
+  }
+  --disable_query_log
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    echo CHILD2_1_DROP_TEXT_KEY_TABLES1;
+    echo CHILD2_1_CREATE_TEXT_KEY_TABLES1;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TEXT_KEY_TABLES1;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TEXT_KEY_TABLES1;
+  --enable_query_log
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS t1;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE t1 (
+  a VARCHAR(255),
+  b VARCHAR(255),
+  c VARCHAR(255),
+  KEY idx1(a,b),
+  KEY idx2(b),
+  PRIMARY KEY(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_TEXT_KEY1_1;
+eval CREATE TABLE t1 (
+  a VARCHAR(255),
+  b VARCHAR(255),
+  c VARCHAR(255),
+  KEY idx1(a,b),
+  KEY idx2(b),
+  PRIMARY KEY(c)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_TEXT_KEY1_1;
+--enable_query_log
+insert into t1 values (null, null, '2048');
+insert into t1 values ('1', '1', '1');
+insert into t1 select a + 1,   b + 1,   c + 1   from t1;
+insert into t1 select a + 2,   b + 2,   c + 2   from t1;
+insert into t1 select a + 4,   b + 4,   c + 4   from t1;
+insert into t1 select a + 8,   b + 8,   c + 8   from t1;
+insert into t1 select a + 16,  b + 16,  c + 16  from t1;
+insert into t1 select a + 32,  b + 32,  c + 32  from t1;
+insert into t1 select a + 64,  b + 64,  c + 64  from t1;
+insert into t1 select a + 128, b + 128, c + 128 from t1;
+insert into t1 select a + 256, b + 256, c + 256 from t1;
+insert into t1 select a + 512, b + 512, c + 512 from t1;
+flush tables;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+select a from t1 where a is null order by a limit 30;
+select b from t1 where b is null order by b limit 30;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TEXT_PK_TABLES1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+
+--echo
+--echo direct_order_limit
+--connection master_1
+TRUNCATE TABLE t1;
+insert into t1 values ('1', '1', '1');
+insert into t1 select a + 1,   b + 1,   c + 1   from t1;
+insert into t1 select a + 2,   b + 2,   c + 2   from t1;
+insert into t1 select a + 4,   b + 4,   c + 4   from t1;
+insert into t1 select a + 8,   b + 8,   c + 8   from t1;
+insert into t1 select a + 16,  b + 16,  c + 16  from t1;
+insert into t1 select a,       b + 32,  c + 32  from t1;
+insert into t1 select a,       b + 64,  c + 64  from t1;
+insert into t1 select a,       b + 128, c + 128 from t1;
+flush tables;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+select a, b, c from t1 where a = '10' and b <> '100' order by c desc limit 5;
+select a, c from t1 where a = '10' order by b desc limit 5;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TEXT_PK_TABLES1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source slave_test_deinit.inc
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/handler/t/spider_fixes_part.test b/storage/spider/mysql-test/spider/handler/t/spider_fixes_part.test
new file mode 100644
index 00000000..ef5a8026
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/spider_fixes_part.test
@@ -0,0 +1,645 @@
+# This test tests for Spider's bug fixes
+source include/have_log_bin.inc;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--source slave_test_init.inc
+--enable_result_log
+--enable_query_log
+if (!$HAVE_PARTITION)
+{
+  --disable_query_log
+  --disable_result_log
+  --source slave_test_deinit.inc
+  --source test_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tb_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+eval CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+--enable_query_log
+INSERT INTO tb_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+
+--echo
+--echo 2.17
+--echo partition with sort
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1;
+  eval CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_COMMENT2_P_2_1;
+  --enable_query_log
+  INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 WHERE a > 1
+  ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo
+--echo 2.23
+--echo partition update with moving partition
+if ($HAVE_PARTITION)
+{
+  --connection master_1
+  --disable_warnings
+  DROP TABLE IF EXISTS ta_l2;
+  --enable_warnings
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1;
+  eval CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_COMMENT2_P_2_1;
+  --enable_query_log
+  INSERT INTO ta_l2 (a, b, c) VALUES (3, 'B', '2010-09-26 00:00:00');
+  UPDATE ta_l2 SET a = 4 WHERE a = 3;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%update %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%delete %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%update %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%delete %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo index merge with partition
+if ($HAVE_PARTITION)
+{
+  --connection master_1
+  --disable_warnings
+  DROP TABLE IF EXISTS ta_l_int;
+  --enable_warnings
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_result_log
+    }
+    --disable_query_log
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      echo CHILD2_2_DROP_TABLES5;
+      echo CHILD2_2_CREATE_TABLES5;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES5;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES5;
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      echo CHILD2_1_DROP_TABLES5;
+      echo CHILD2_1_CREATE_TABLES5;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES5;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES5;
+    --enable_query_log
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l_int (
+    a INT AUTO_INCREMENT,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    PRIMARY KEY(a),
+    KEY idx1(b),
+    KEY idx2(c)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT3_P_2_1;
+  eval CREATE TABLE ta_l_int (
+    a INT AUTO_INCREMENT,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    PRIMARY KEY(a),
+    KEY idx1(b),
+    KEY idx2(c)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT3_P_2_1;
+  --enable_query_log
+  INSERT INTO ta_l_int (a, b, c) VALUES (1, 2, 3);
+  INSERT INTO ta_l_int (a, b, c) SELECT a + 1, b + 1, c + 1 FROM ta_l_int;
+  INSERT INTO ta_l_int (a, b, c) SELECT a + 2, b + 2, c + 2 FROM ta_l_int;
+  INSERT INTO ta_l_int (a, b, c) SELECT a + 4, b + 4, c + 4 FROM ta_l_int;
+  INSERT INTO ta_l_int (a, b, c) SELECT a + 8, b + 8, c + 8 FROM ta_l_int;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, c FROM ta_l_int force index(primary, idx1, idx2)
+  WHERE a = 5 OR b = 5 OR c = 5 ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+
+--echo
+--echo 2.26
+--echo auto_increment with partition
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_INCREMENT_TABLES1;
+      echo CHILD2_1_CREATE_INCREMENT_TABLES1;
+      echo CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+      echo CHILD2_1_AUTO_INCREMENT_OFFSET2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_INCREMENT_TABLES1;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_INCREMENT_TABLES1;
+    eval $CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+    eval $CHILD2_1_AUTO_INCREMENT_OFFSET2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_INCREMENT_TABLES1;
+      echo CHILD2_2_CREATE_INCREMENT_TABLES1;
+      echo CHILD2_2_AUTO_INCREMENT_INCREMENT2;
+      echo CHILD2_2_AUTO_INCREMENT_OFFSET2;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_INCREMENT_TABLES1;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_INCREMENT_TABLES1;
+    eval $CHILD2_2_AUTO_INCREMENT_INCREMENT2;
+    eval $CHILD2_2_AUTO_INCREMENT_OFFSET2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  if ($USE_REPLICATION)
+  {
+    save_master_pos;
+    --connection slave1_1
+    sync_with_master;
+    --connection master_1
+    --disable_query_log
+    SET SESSION sql_log_bin= 0;
+    --enable_query_log
+  }
+  --disable_warnings
+  DROP TABLE IF EXISTS t1;
+  --enable_warnings
+  --disable_query_log
+  echo CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_P_1;
+  echo MASTER_1_AUTO_INCREMENT_INCREMENT2;
+  echo MASTER_1_AUTO_INCREMENT_OFFSET2;
+  eval CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_INCREMENT1_P_1;
+  eval $MASTER_1_AUTO_INCREMENT_INCREMENT2;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET2;
+  if ($USE_REPLICATION)
+  {
+    SET SESSION sql_log_bin= 1;
+    --connection slave1_1
+    --disable_warnings
+    DROP TABLE IF EXISTS t1;
+    --enable_warnings
+    echo CREATE TABLE t1 (
+      id int(11) NOT NULL AUTO_INCREMENT,
+      PRIMARY KEY (id)
+    ) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_P_1;
+    eval CREATE TABLE t1 (
+      id int(11) NOT NULL AUTO_INCREMENT,
+      PRIMARY KEY (id)
+    ) $SLAVE1_1_ENGINE $SLAVE1_1_CHARSET $SLAVE1_1_COMMENT_INCREMENT1_P_1;
+    --connection master_1
+  }
+  --enable_query_log
+  INSERT INTO t1 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t1 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t1 (id) VALUES (null);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t1 (id) VALUES (null);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t1 () VALUES (),(),(),();
+  SELECT LAST_INSERT_ID();
+  SELECT id FROM t1 ORDER BY id;
+  SET INSERT_ID=5000;
+  INSERT INTO t1 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t1 (id) VALUES (10000);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t1 (id) VALUES (1000);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  if ($USE_REPLICATION)
+  {
+    save_master_pos;
+    --connection slave1_1
+    sync_with_master;
+    SELECT id FROM t1 ORDER BY id;
+    --connection master_1
+    --disable_query_log
+    SET SESSION sql_log_bin= 0;
+    --enable_query_log
+  }
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_1_SELECT_INCREMENT_TABLES1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+      echo CHILD2_1_AUTO_INCREMENT_OFFSET1;
+    }
+    eval $CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+    eval $CHILD2_1_AUTO_INCREMENT_OFFSET1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_2_SELECT_INCREMENT_TABLES1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_AUTO_INCREMENT_INCREMENT1;
+      echo CHILD2_2_AUTO_INCREMENT_OFFSET1;
+    }
+    eval $CHILD2_2_AUTO_INCREMENT_INCREMENT1;
+    eval $CHILD2_2_AUTO_INCREMENT_OFFSET1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source slave_test_deinit.inc
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/handler/t/test_deinit.inc b/storage/spider/mysql-test/spider/handler/t/test_deinit.inc
new file mode 100644
index 00000000..989bde26
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/test_deinit.inc
@@ -0,0 +1,37 @@
+# get connection and exist engine test
+--echo for master_1
+--connection master_1
+--source ../include/deinit_master_1.inc
+--disconnect master_1
+--echo for child2
+if ($USE_CHILD_GROUP2)
+{
+  --echo child2_1
+  --connection child2_1
+  --source ../include/deinit_child2_1.inc
+  --disconnect child2_1
+  --echo child2_2
+  --connection child2_2
+  --source ../include/deinit_child2_2.inc
+  --disconnect child2_2
+  --echo child2_3
+  --connection child2_3
+  --source ../include/deinit_child2_3.inc
+  --disconnect child2_3
+}
+--echo for child3
+if ($USE_CHILD_GROUP3)
+{
+  --echo child3_1
+  --connection child3_1
+  --source ../include/deinit_child3_1.inc
+  --disconnect child3_1
+  --echo child3_2
+  --connection child3_2
+  --source ../include/deinit_child3_2.inc
+  --disconnect child3_2
+  --echo child3_3
+  --connection child3_3
+  --source ../include/deinit_child3_3.inc
+  --disconnect child3_3
+}
diff --git a/storage/spider/mysql-test/spider/handler/t/test_init.inc b/storage/spider/mysql-test/spider/handler/t/test_init.inc
new file mode 100644
index 00000000..f2cd6c02
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/test_init.inc
@@ -0,0 +1,74 @@
+# get connection and exist engine test
+--echo for master_1
+--source connect_master_1.inc
+--connection master_1
+CALL mtr.add_suppression("unknown variable");
+SET SESSION sql_log_bin= 0;
+--let $MASTER_1_SERVER_ID=`SELECT @@global.server_id`
+--let $TEST_ENGINE_TYPE= $MASTER_1_ENGINE_TYPE
+--source have_partition.inc
+--source have_trigger.inc
+--source ../include/init_master_1.inc
+--source have_engine.inc
+--echo for child2
+if ($USE_CHILD_GROUP2)
+{
+  --echo child2_1
+  --source connect_child2_1.inc
+  --connection child2_1
+  CALL mtr.add_suppression("unknown variable *");
+  SET SESSION sql_log_bin= 0;
+  --let $CHILD2_1_SERVER_ID=`SELECT @@global.server_id`
+  --let $TEST_ENGINE_TYPE= $CHILD2_1_ENGINE_TYPE
+  --source ../include/init_child2_1.inc
+  --source have_engine.inc
+  --echo child2_2
+  --source connect_child2_2.inc
+  --connection child2_2
+  CALL mtr.add_suppression("unknown variable *");
+  SET SESSION sql_log_bin= 0;
+  --let $CHILD2_2_SERVER_ID=`SELECT @@global.server_id`
+  --let $TEST_ENGINE_TYPE= $CHILD2_2_ENGINE_TYPE
+  --source ../include/init_child2_2.inc
+  --source have_engine.inc
+  --echo child2_3
+  --source connect_child2_3.inc
+  --connection child2_3
+  CALL mtr.add_suppression("unknown variable *");
+  SET SESSION sql_log_bin= 0;
+  --let $CHILD2_3_SERVER_ID=`SELECT @@global.server_id`
+  --let $TEST_ENGINE_TYPE= $CHILD2_3_ENGINE_TYPE
+  --source ../include/init_child2_3.inc
+  --source have_engine.inc
+}
+--echo for child3
+if ($USE_CHILD_GROUP3)
+{
+  --echo child3_1
+  --source connect_child3_1.inc
+  --connection child3_1
+  CALL mtr.add_suppression("unknown variable *");
+  SET SESSION sql_log_bin= 0;
+  --let $CHILD3_1_SERVER_ID=`SELECT @@global.server_id`
+  --let $TEST_ENGINE_TYPE= $CHILD3_1_ENGINE_TYPE
+  --source ../include/init_child3_1.inc
+  --source have_engine.inc
+  --echo child3_2
+  --source connect_child3_2.inc
+  --connection child3_2
+  CALL mtr.add_suppression("unknown variable *");
+  SET SESSION sql_log_bin= 0;
+  --let $CHILD3_2_SERVER_ID=`SELECT @@global.server_id`
+  --let $TEST_ENGINE_TYPE= $CHILD3_2_ENGINE_TYPE
+  --source ../include/init_child3_2.inc
+  --source have_engine.inc
+  --echo child3_3
+  --source connect_child3_3.inc
+  --connection child3_3
+  CALL mtr.add_suppression("unknown variable *");
+  SET SESSION sql_log_bin= 0;
+  --let $CHILD3_3_SERVER_ID=`SELECT @@global.server_id`
+  --let $TEST_ENGINE_TYPE= $CHILD3_3_ENGINE_TYPE
+  --source ../include/init_child3_3.inc
+  --source have_engine.inc
+}
diff --git a/storage/spider/mysql-test/spider/handler/t/vp_fixes.test b/storage/spider/mysql-test/spider/handler/t/vp_fixes.test
new file mode 100644
index 00000000..90380227
--- /dev/null
+++ b/storage/spider/mysql-test/spider/handler/t/vp_fixes.test
@@ -0,0 +1,335 @@
+# This test tests for VP's bug fixes
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table and insert
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tb_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+eval CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+--enable_query_log
+INSERT INTO tb_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+
+--echo
+--echo 0.9
+--echo create different primary key table
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_result_log
+  }
+  --disable_query_log
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    echo CHILD2_1_DROP_TABLES5;
+    echo CHILD2_1_CREATE_TABLES5;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES5;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES5;
+  --enable_query_log
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_query_log
+echo CREATE TABLE ta_l_int (
+  a INT DEFAULT 10,
+  b INT AUTO_INCREMENT,
+  c INT DEFAULT 11,
+  PRIMARY KEY(b)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1;
+eval CREATE TABLE ta_l_int (
+  a INT DEFAULT 10,
+  b INT AUTO_INCREMENT,
+  c INT DEFAULT 11,
+  PRIMARY KEY(b)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+--enable_query_log
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--let $MASTER_1_IS_VP= `SELECT IF('$MASTER_1_ENGINE_TYPE' = 'VP', 1, 0)`
+if ($MASTER_1_IS_VP)
+{
+  --error 14514
+  INSERT INTO ta_l_int (a, b, c) VALUES (2, NULL, 3);
+}
+if (!$MASTER_1_IS_VP)
+{
+  INSERT INTO ta_l_int (a, b, c) VALUES (2, NULL, 3);
+  --disable_query_log
+  --disable_result_log
+  TRUNCATE TABLE ta_l_int;
+  --enable_query_log
+  --enable_result_log
+}
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES5;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo create un-correspond primary key table
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l_int;
+--enable_warnings
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_result_log
+  }
+  --disable_query_log
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    echo CHILD2_1_DROP_TABLES5;
+    echo CHILD2_1_CREATE_TABLES5;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES5;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES5;
+  --enable_query_log
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_query_log
+echo CREATE TABLE ta_l_int (
+  a INT DEFAULT 10,
+  b INT DEFAULT 12,
+  c INT DEFAULT 11,
+  PRIMARY KEY(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1;
+eval CREATE TABLE ta_l_int (
+  a INT DEFAULT 10,
+  b INT DEFAULT 12,
+  c INT DEFAULT 11,
+  PRIMARY KEY(c)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+--enable_query_log
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+if ($MASTER_1_IS_VP)
+{
+  --error 14514
+  INSERT INTO ta_l_int (a, b, c) VALUES (2, NULL, 3);
+}
+if (!$MASTER_1_IS_VP)
+{
+  INSERT INTO ta_l_int (a, b, c) VALUES (2, NULL, 3);
+  --disable_query_log
+  --disable_result_log
+  TRUNCATE TABLE ta_l_int;
+  --enable_query_log
+  --enable_result_log
+}
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES5;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/include/checksum_table_with_quick_mode_3_deinit.inc b/storage/spider/mysql-test/spider/include/checksum_table_with_quick_mode_3_deinit.inc
new file mode 100644
index 00000000..7db871c7
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/checksum_table_with_quick_mode_3_deinit.inc
@@ -0,0 +1,14 @@
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--let $OUTPUT_CHILD_GROUP2= $OUTPUT_CHILD_GROUP2_BACKUP
+--let $USE_GENERAL_LOG= $USE_GENERAL_LOG_BACKUP
+--connection master_1
+set session spider_quick_mode= @old_spider_quick_mode;
+set session spider_quick_page_size= @old_spider_quick_page_size;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/include/checksum_table_with_quick_mode_3_init.inc b/storage/spider/mysql-test/spider/include/checksum_table_with_quick_mode_3_init.inc
new file mode 100644
index 00000000..0bb12d8f
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/checksum_table_with_quick_mode_3_init.inc
@@ -0,0 +1,33 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a", srv "s_2_1"';
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT pkey FROM tbl_a ORDER BY pkey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%checksum %';
+--let $OUTPUT_CHILD_GROUP2_BACKUP= $OUTPUT_CHILD_GROUP2
+--let $OUTPUT_CHILD_GROUP2= 1
+--let $USE_GENERAL_LOG_BACKUP= $USE_GENERAL_LOG
+--let $USE_GENERAL_LOG= 1
+--connection master_1
+set @old_spider_quick_mode= @@spider_quick_mode;
+set session spider_quick_mode= 3;
+set @old_spider_quick_page_size= @@spider_quick_page_size;
+set session spider_quick_page_size= 3;
diff --git a/storage/spider/mysql-test/spider/include/deinit_child2_1.inc b/storage/spider/mysql-test/spider/include/deinit_child2_1.inc
new file mode 100644
index 00000000..6e7fefe5
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/deinit_child2_1.inc
@@ -0,0 +1,3 @@
+--let $TEST_ENGINE_TYPE= $CHILD2_1_ENGINE_TYPE
+--let $INIT_TEST_ENGINE= $INIT_CHILD2_1_ENGINE
+--source ../include/deinit_engine.inc
diff --git a/storage/spider/mysql-test/spider/include/deinit_child2_2.inc b/storage/spider/mysql-test/spider/include/deinit_child2_2.inc
new file mode 100644
index 00000000..0f770f9b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/deinit_child2_2.inc
@@ -0,0 +1,3 @@
+--let $TEST_ENGINE_TYPE= $CHILD2_2_ENGINE_TYPE
+--let $INIT_TEST_ENGINE= $INIT_CHILD2_2_ENGINE
+--source ../include/deinit_engine.inc
diff --git a/storage/spider/mysql-test/spider/include/deinit_child2_3.inc b/storage/spider/mysql-test/spider/include/deinit_child2_3.inc
new file mode 100644
index 00000000..4ed97224
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/deinit_child2_3.inc
@@ -0,0 +1,3 @@
+--let $TEST_ENGINE_TYPE= $CHILD2_3_ENGINE_TYPE
+--let $INIT_TEST_ENGINE= $INIT_CHILD2_3_ENGINE
+--source ../include/deinit_engine.inc
diff --git a/storage/spider/mysql-test/spider/include/deinit_child3_1.inc b/storage/spider/mysql-test/spider/include/deinit_child3_1.inc
new file mode 100644
index 00000000..079b4b3e
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/deinit_child3_1.inc
@@ -0,0 +1,3 @@
+--let $TEST_ENGINE_TYPE= $CHILD3_1_ENGINE_TYPE
+--let $INIT_TEST_ENGINE= $INIT_CHILD3_1_ENGINE
+--source ../include/deinit_engine.inc
diff --git a/storage/spider/mysql-test/spider/include/deinit_child3_2.inc b/storage/spider/mysql-test/spider/include/deinit_child3_2.inc
new file mode 100644
index 00000000..e495bf51
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/deinit_child3_2.inc
@@ -0,0 +1,3 @@
+--let $TEST_ENGINE_TYPE= $CHILD3_2_ENGINE_TYPE
+--let $INIT_TEST_ENGINE= $INIT_CHILD3_2_ENGINE
+--source ../include/deinit_engine.inc
diff --git a/storage/spider/mysql-test/spider/include/deinit_child3_3.inc b/storage/spider/mysql-test/spider/include/deinit_child3_3.inc
new file mode 100644
index 00000000..b197faa0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/deinit_child3_3.inc
@@ -0,0 +1,3 @@
+--let $TEST_ENGINE_TYPE= $CHILD3_3_ENGINE_TYPE
+--let $INIT_TEST_ENGINE= $INIT_CHILD3_3_ENGINE
+--source ../include/deinit_engine.inc
diff --git a/storage/spider/mysql-test/spider/include/deinit_engine.inc b/storage/spider/mysql-test/spider/include/deinit_engine.inc
new file mode 100644
index 00000000..e7bdab41
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/deinit_engine.inc
@@ -0,0 +1,4 @@
+if ($INIT_TEST_ENGINE)
+{
+  --echo Deinit $TEST_ENGINE_TYPE engine
+}
diff --git a/storage/spider/mysql-test/spider/include/deinit_handlersocket.inc b/storage/spider/mysql-test/spider/include/deinit_handlersocket.inc
new file mode 100644
index 00000000..3ebf80ef
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/deinit_handlersocket.inc
@@ -0,0 +1 @@
+UNINSTALL PLUGIN handlersocket;
diff --git a/storage/spider/mysql-test/spider/include/deinit_innodb_plugin.inc b/storage/spider/mysql-test/spider/include/deinit_innodb_plugin.inc
new file mode 100644
index 00000000..d1013fe8
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/deinit_innodb_plugin.inc
@@ -0,0 +1 @@
+UNINSTALL PLUGIN InnoDB;
diff --git a/storage/spider/mysql-test/spider/include/deinit_master_1.inc b/storage/spider/mysql-test/spider/include/deinit_master_1.inc
new file mode 100644
index 00000000..482c8013
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/deinit_master_1.inc
@@ -0,0 +1 @@
+--source ../include/deinit_spider.inc
diff --git a/storage/spider/mysql-test/spider/include/deinit_slave1_1.inc b/storage/spider/mysql-test/spider/include/deinit_slave1_1.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/deinit_slave1_1.inc
diff --git a/storage/spider/mysql-test/spider/include/deinit_spider.inc b/storage/spider/mysql-test/spider/include/deinit_spider.inc
new file mode 100644
index 00000000..dd474c59
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/deinit_spider.inc
@@ -0,0 +1,109 @@
+let $SERVER_NAME=
+  `SELECT SUBSTRING_INDEX(SUBSTRING_INDEX(version(), '-', 2), '-', -1)`;
+let $SERVER_MAJOR_VERSION=
+  `SELECT SUBSTRING_INDEX(version(), '.', 1)`;
+let $SERVER_MINOR_VERSION=
+  `SELECT SUBSTRING_INDEX(SUBSTRING_INDEX(version(), '.', 2), '.', -1)`;
+let $PLUGIN_VERSION=
+  `SELECT SUBSTRING_INDEX(plugin_version, '.', 1)
+     FROM information_schema.plugins
+    WHERE plugin_name = 'SPIDER'`;
+if (`SELECT IF($PLUGIN_VERSION = 3, 1, 0)`)
+{
+  let $HAS_REWRITE=
+    `SELECT IF (STRCMP('$SERVER_NAME', 'MariaDB') = 0,
+                IF ($SERVER_MAJOR_VERSION = 10,
+                    IF ($SERVER_MINOR_VERSION < 4,  0, 1),
+                    IF ($SERVER_MAJOR_VERSION < 10, 0, 1)),
+                0)`;
+  let $HAS_REWRITE= 0;
+  if ($HAS_REWRITE)
+  {
+    DROP FUNCTION spider_flush_rewrite_cache;
+    UNINSTALL PLUGIN spider_rewrite;
+    DROP TABLE IF EXISTS mysql.spider_rewrite_tables;
+    DROP TABLE IF EXISTS mysql.spider_rewrite_table_tables;
+    DROP TABLE IF EXISTS mysql.spider_rewrite_table_partitions;
+    DROP TABLE IF EXISTS mysql.spider_rewrite_table_subpartitions;
+    DROP TABLE IF EXISTS mysql.spider_rewritten_tables;
+  }
+}
+DROP FUNCTION spider_flush_table_mon_cache;
+DROP FUNCTION spider_copy_tables;
+DROP FUNCTION spider_ping_table;
+DROP FUNCTION spider_bg_direct_sql;
+DROP FUNCTION spider_direct_sql;
+UNINSTALL PLUGIN spider_wrapper_protocols;
+UNINSTALL PLUGIN spider_alloc_mem;
+UNINSTALL PLUGIN spider;
+DROP TABLE IF EXISTS mysql.spider_xa;
+DROP TABLE IF EXISTS mysql.spider_xa_member;
+DROP TABLE IF EXISTS mysql.spider_xa_failed_log;
+DROP TABLE IF EXISTS mysql.spider_tables;
+DROP TABLE IF EXISTS mysql.spider_link_mon_servers;
+DROP TABLE IF EXISTS mysql.spider_link_failed_log;
+DROP TABLE IF EXISTS mysql.spider_table_position_for_recovery;
+DROP TABLE IF EXISTS mysql.spider_table_sts;
+DROP TABLE IF EXISTS mysql.spider_table_crd;
+if ($VERSION_COMPILE_OS_WIN)
+{
+  if ($MASTER_1_MYPORT)
+  {
+    DROP SERVER s_1;
+  }
+  if ($CHILD2_1_MYPORT)
+  {
+    DROP SERVER s_2_1;
+  }
+  if ($CHILD2_2_MYPORT)
+  {
+    DROP SERVER s_2_2;
+  }
+  if ($CHILD2_3_MYPORT)
+  {
+    DROP SERVER s_2_3;
+  }
+  if ($CHILD3_1_MYPORT)
+  {
+    DROP SERVER s_3_1;
+  }
+  if ($CHILD3_2_MYPORT)
+  {
+    DROP SERVER s_3_2;
+  }
+  if ($CHILD2_3_MYPORT)
+  {
+    DROP SERVER s_3_3;
+  }
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  if ($MASTER_1_MYSOCK)
+  {
+    DROP SERVER s_1;
+  }
+  if ($CHILD2_1_MYSOCK)
+  {
+    DROP SERVER s_2_1;
+  }
+  if ($CHILD2_2_MYSOCK)
+  {
+    DROP SERVER s_2_2;
+  }
+  if ($CHILD2_3_MYSOCK)
+  {
+    DROP SERVER s_2_3;
+  }
+  if ($CHILD3_1_MYSOCK)
+  {
+    DROP SERVER s_3_1;
+  }
+  if ($CHILD3_2_MYSOCK)
+  {
+    DROP SERVER s_3_2;
+  }
+  if ($CHILD3_3_MYSOCK)
+  {
+    DROP SERVER s_3_3;
+  }
+}
diff --git a/storage/spider/mysql-test/spider/include/direct_join_deinit.inc b/storage/spider/mysql-test/spider/include/direct_join_deinit.inc
new file mode 100644
index 00000000..53bc29a0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/direct_join_deinit.inc
@@ -0,0 +1,9 @@
+--let $OUTPUT_CHILD_GROUP2= $OUTPUT_CHILD_GROUP2_BACKUP
+--let $USE_GENERAL_LOG= $USE_GENERAL_LOG_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/include/direct_join_init.inc b/storage/spider/mysql-test/spider/include/direct_join_init.inc
new file mode 100644
index 00000000..25c5e7ca
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/direct_join_init.inc
@@ -0,0 +1,53 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+let $MASTER_1_COMMENT_CONST_TABLE_JOIN=
+  COMMENT 'table "tbl_person"';
+let $MASTER_1_COMMENT_CONST_TABLE_JOIN=
+  COMMENT 'table "tbl_ncd_cm_person"';
+let $MASTER_1_ROW_FORMAT_CONST_TABLE_JOIN=
+  ROW_FORMAT = Dynamic;
+let $MASTER_1_PART_CONST_TABLE_JOIN=
+  PARTITION BY LIST COLUMNS (region) PARTITIONS 1
+  (PARTITION pt1 values in (510411)
+   COMMENT = 'tbl "tbl_person", srv "s_2_1"' MAX_ROWS = 0 MIN_ROWS = 0);
+let $MASTER_1_PART_CONST_TABLE2_JOIN=
+  PARTITION BY LIST COLUMNS (region) PARTITIONS 1
+  (PARTITION pt1 values in (510411)
+   COMMENT = 'tbl "tbl_ncd_cm_person", srv "s_2_1"' MAX_ROWS = 0 MIN_ROWS = 0);
+let $CHILD2_1_ROW_FORMAT_CONST_TABLE_JOIN=
+  ROW_FORMAT = Dynamic;
+let $CHILD2_1_DROP_CONST_TABLE_JOIN=
+  DROP TABLE IF EXISTS tbl_person;
+let $CHILD2_1_CREATE_CONST_TABLE_JOIN=
+  CREATE TABLE tbl_person (
+    id VARCHAR(50) NOT NULL,
+    hr_status VARCHAR(50) NULL DEFAULT NULL,
+    region_code VARCHAR(50) NULL DEFAULT NULL,
+    region INT(11) NOT NULL,
+    PRIMARY KEY (id, region) USING BTREE
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET $CHILD2_1_ROW_FORMAT_CONST_TABLE_JOIN;
+let $CHILD2_1_DROP_CONST_TABLE2_JOIN=
+  DROP TABLE IF EXISTS tbl_ncd_cm_person;
+let $CHILD2_1_CREATE_CONST_TABLE2_JOIN=
+  CREATE TABLE tbl_ncd_cm_person (
+    id VARCHAR(50) NOT NULL,
+    person_id VARCHAR(50) NULL DEFAULT '',
+    diseaseKind_id VARCHAR(50) NULL DEFAULT NULL,
+    region INT(11) NOT NULL,
+    PRIMARY KEY (id, region) USING BTREE
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET $CHILD2_1_ROW_FORMAT_CONST_TABLE_JOIN;
+let $CHILD2_1_SELECT_CONST_TABLE_JOIN=
+  SELECT * FROM tbl_person;
+let $CHILD2_1_SELECT_CONST_TABLE2_JOIN=
+  SELECT * FROM tbl_ncd_cm_person;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $OUTPUT_CHILD_GROUP2_BACKUP= $OUTPUT_CHILD_GROUP2
+--let $OUTPUT_CHILD_GROUP2= 1
+--let $USE_GENERAL_LOG_BACKUP= $USE_GENERAL_LOG
+--let $USE_GENERAL_LOG= 1
diff --git a/storage/spider/mysql-test/spider/include/direct_join_using_deinit.inc b/storage/spider/mysql-test/spider/include/direct_join_using_deinit.inc
new file mode 100644
index 00000000..53bc29a0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/direct_join_using_deinit.inc
@@ -0,0 +1,9 @@
+--let $OUTPUT_CHILD_GROUP2= $OUTPUT_CHILD_GROUP2_BACKUP
+--let $USE_GENERAL_LOG= $USE_GENERAL_LOG_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/include/direct_join_using_init.inc b/storage/spider/mysql-test/spider/include/direct_join_using_init.inc
new file mode 100644
index 00000000..7e4947bf
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/direct_join_using_init.inc
@@ -0,0 +1,13 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $OUTPUT_CHILD_GROUP2_BACKUP= $OUTPUT_CHILD_GROUP2
+--let $OUTPUT_CHILD_GROUP2= 1
+--let $USE_GENERAL_LOG_BACKUP= $USE_GENERAL_LOG
+--let $USE_GENERAL_LOG= 1
diff --git a/storage/spider/mysql-test/spider/include/direct_left_join_deinit.inc b/storage/spider/mysql-test/spider/include/direct_left_join_deinit.inc
new file mode 100644
index 00000000..53bc29a0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/direct_left_join_deinit.inc
@@ -0,0 +1,9 @@
+--let $OUTPUT_CHILD_GROUP2= $OUTPUT_CHILD_GROUP2_BACKUP
+--let $USE_GENERAL_LOG= $USE_GENERAL_LOG_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/include/direct_left_join_init.inc b/storage/spider/mysql-test/spider/include/direct_left_join_init.inc
new file mode 100644
index 00000000..7e4947bf
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/direct_left_join_init.inc
@@ -0,0 +1,13 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $OUTPUT_CHILD_GROUP2_BACKUP= $OUTPUT_CHILD_GROUP2
+--let $OUTPUT_CHILD_GROUP2= 1
+--let $USE_GENERAL_LOG_BACKUP= $USE_GENERAL_LOG
+--let $USE_GENERAL_LOG= 1
diff --git a/storage/spider/mysql-test/spider/include/direct_left_join_nullable_deinit.inc b/storage/spider/mysql-test/spider/include/direct_left_join_nullable_deinit.inc
new file mode 100644
index 00000000..53bc29a0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/direct_left_join_nullable_deinit.inc
@@ -0,0 +1,9 @@
+--let $OUTPUT_CHILD_GROUP2= $OUTPUT_CHILD_GROUP2_BACKUP
+--let $USE_GENERAL_LOG= $USE_GENERAL_LOG_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/include/direct_left_join_nullable_init.inc b/storage/spider/mysql-test/spider/include/direct_left_join_nullable_init.inc
new file mode 100644
index 00000000..7e4947bf
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/direct_left_join_nullable_init.inc
@@ -0,0 +1,13 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $OUTPUT_CHILD_GROUP2_BACKUP= $OUTPUT_CHILD_GROUP2
+--let $OUTPUT_CHILD_GROUP2= 1
+--let $USE_GENERAL_LOG_BACKUP= $USE_GENERAL_LOG
+--let $USE_GENERAL_LOG= 1
diff --git a/storage/spider/mysql-test/spider/include/direct_left_right_join_nullable_deinit.inc b/storage/spider/mysql-test/spider/include/direct_left_right_join_nullable_deinit.inc
new file mode 100644
index 00000000..53bc29a0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/direct_left_right_join_nullable_deinit.inc
@@ -0,0 +1,9 @@
+--let $OUTPUT_CHILD_GROUP2= $OUTPUT_CHILD_GROUP2_BACKUP
+--let $USE_GENERAL_LOG= $USE_GENERAL_LOG_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/include/direct_left_right_join_nullable_init.inc b/storage/spider/mysql-test/spider/include/direct_left_right_join_nullable_init.inc
new file mode 100644
index 00000000..7e4947bf
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/direct_left_right_join_nullable_init.inc
@@ -0,0 +1,13 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $OUTPUT_CHILD_GROUP2_BACKUP= $OUTPUT_CHILD_GROUP2
+--let $OUTPUT_CHILD_GROUP2= 1
+--let $USE_GENERAL_LOG_BACKUP= $USE_GENERAL_LOG
+--let $USE_GENERAL_LOG= 1
diff --git a/storage/spider/mysql-test/spider/include/direct_left_right_left_join_nullable_deinit.inc b/storage/spider/mysql-test/spider/include/direct_left_right_left_join_nullable_deinit.inc
new file mode 100644
index 00000000..53bc29a0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/direct_left_right_left_join_nullable_deinit.inc
@@ -0,0 +1,9 @@
+--let $OUTPUT_CHILD_GROUP2= $OUTPUT_CHILD_GROUP2_BACKUP
+--let $USE_GENERAL_LOG= $USE_GENERAL_LOG_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/include/direct_left_right_left_join_nullable_init.inc b/storage/spider/mysql-test/spider/include/direct_left_right_left_join_nullable_init.inc
new file mode 100644
index 00000000..7e4947bf
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/direct_left_right_left_join_nullable_init.inc
@@ -0,0 +1,13 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $OUTPUT_CHILD_GROUP2_BACKUP= $OUTPUT_CHILD_GROUP2
+--let $OUTPUT_CHILD_GROUP2= 1
+--let $USE_GENERAL_LOG_BACKUP= $USE_GENERAL_LOG
+--let $USE_GENERAL_LOG= 1
diff --git a/storage/spider/mysql-test/spider/include/direct_right_join_deinit.inc b/storage/spider/mysql-test/spider/include/direct_right_join_deinit.inc
new file mode 100644
index 00000000..53bc29a0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/direct_right_join_deinit.inc
@@ -0,0 +1,9 @@
+--let $OUTPUT_CHILD_GROUP2= $OUTPUT_CHILD_GROUP2_BACKUP
+--let $USE_GENERAL_LOG= $USE_GENERAL_LOG_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/include/direct_right_join_init.inc b/storage/spider/mysql-test/spider/include/direct_right_join_init.inc
new file mode 100644
index 00000000..7e4947bf
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/direct_right_join_init.inc
@@ -0,0 +1,13 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $OUTPUT_CHILD_GROUP2_BACKUP= $OUTPUT_CHILD_GROUP2
+--let $OUTPUT_CHILD_GROUP2= 1
+--let $USE_GENERAL_LOG_BACKUP= $USE_GENERAL_LOG
+--let $USE_GENERAL_LOG= 1
diff --git a/storage/spider/mysql-test/spider/include/direct_right_join_nullable_deinit.inc b/storage/spider/mysql-test/spider/include/direct_right_join_nullable_deinit.inc
new file mode 100644
index 00000000..53bc29a0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/direct_right_join_nullable_deinit.inc
@@ -0,0 +1,9 @@
+--let $OUTPUT_CHILD_GROUP2= $OUTPUT_CHILD_GROUP2_BACKUP
+--let $USE_GENERAL_LOG= $USE_GENERAL_LOG_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/include/direct_right_join_nullable_init.inc b/storage/spider/mysql-test/spider/include/direct_right_join_nullable_init.inc
new file mode 100644
index 00000000..7e4947bf
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/direct_right_join_nullable_init.inc
@@ -0,0 +1,13 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $OUTPUT_CHILD_GROUP2_BACKUP= $OUTPUT_CHILD_GROUP2
+--let $OUTPUT_CHILD_GROUP2= 1
+--let $USE_GENERAL_LOG_BACKUP= $USE_GENERAL_LOG
+--let $USE_GENERAL_LOG= 1
diff --git a/storage/spider/mysql-test/spider/include/direct_right_left_join_nullable_deinit.inc b/storage/spider/mysql-test/spider/include/direct_right_left_join_nullable_deinit.inc
new file mode 100644
index 00000000..53bc29a0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/direct_right_left_join_nullable_deinit.inc
@@ -0,0 +1,9 @@
+--let $OUTPUT_CHILD_GROUP2= $OUTPUT_CHILD_GROUP2_BACKUP
+--let $USE_GENERAL_LOG= $USE_GENERAL_LOG_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/include/direct_right_left_join_nullable_init.inc b/storage/spider/mysql-test/spider/include/direct_right_left_join_nullable_init.inc
new file mode 100644
index 00000000..7e4947bf
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/direct_right_left_join_nullable_init.inc
@@ -0,0 +1,13 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $OUTPUT_CHILD_GROUP2_BACKUP= $OUTPUT_CHILD_GROUP2
+--let $OUTPUT_CHILD_GROUP2= 1
+--let $USE_GENERAL_LOG_BACKUP= $USE_GENERAL_LOG
+--let $USE_GENERAL_LOG= 1
diff --git a/storage/spider/mysql-test/spider/include/direct_right_left_right_join_nullable_deinit.inc b/storage/spider/mysql-test/spider/include/direct_right_left_right_join_nullable_deinit.inc
new file mode 100644
index 00000000..53bc29a0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/direct_right_left_right_join_nullable_deinit.inc
@@ -0,0 +1,9 @@
+--let $OUTPUT_CHILD_GROUP2= $OUTPUT_CHILD_GROUP2_BACKUP
+--let $USE_GENERAL_LOG= $USE_GENERAL_LOG_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/include/direct_right_left_right_join_nullable_init.inc b/storage/spider/mysql-test/spider/include/direct_right_left_right_join_nullable_init.inc
new file mode 100644
index 00000000..7e4947bf
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/direct_right_left_right_join_nullable_init.inc
@@ -0,0 +1,13 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $OUTPUT_CHILD_GROUP2_BACKUP= $OUTPUT_CHILD_GROUP2
+--let $OUTPUT_CHILD_GROUP2= 1
+--let $USE_GENERAL_LOG_BACKUP= $USE_GENERAL_LOG
+--let $USE_GENERAL_LOG= 1
diff --git a/storage/spider/mysql-test/spider/include/ha_deinit_child2_1.inc b/storage/spider/mysql-test/spider/include/ha_deinit_child2_1.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/ha_deinit_child2_1.inc
diff --git a/storage/spider/mysql-test/spider/include/ha_deinit_child2_2.inc b/storage/spider/mysql-test/spider/include/ha_deinit_child2_2.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/ha_deinit_child2_2.inc
diff --git a/storage/spider/mysql-test/spider/include/ha_deinit_child2_3.inc b/storage/spider/mysql-test/spider/include/ha_deinit_child2_3.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/ha_deinit_child2_3.inc
diff --git a/storage/spider/mysql-test/spider/include/ha_deinit_child3_1.inc b/storage/spider/mysql-test/spider/include/ha_deinit_child3_1.inc
new file mode 100644
index 00000000..482c8013
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/ha_deinit_child3_1.inc
@@ -0,0 +1 @@
+--source ../include/deinit_spider.inc
diff --git a/storage/spider/mysql-test/spider/include/ha_deinit_child3_2.inc b/storage/spider/mysql-test/spider/include/ha_deinit_child3_2.inc
new file mode 100644
index 00000000..482c8013
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/ha_deinit_child3_2.inc
@@ -0,0 +1 @@
+--source ../include/deinit_spider.inc
diff --git a/storage/spider/mysql-test/spider/include/ha_deinit_child3_3.inc b/storage/spider/mysql-test/spider/include/ha_deinit_child3_3.inc
new file mode 100644
index 00000000..482c8013
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/ha_deinit_child3_3.inc
@@ -0,0 +1 @@
+--source ../include/deinit_spider.inc
diff --git a/storage/spider/mysql-test/spider/include/ha_deinit_master_1.inc b/storage/spider/mysql-test/spider/include/ha_deinit_master_1.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/ha_deinit_master_1.inc
diff --git a/storage/spider/mysql-test/spider/include/ha_init_child2_1.inc b/storage/spider/mysql-test/spider/include/ha_init_child2_1.inc
new file mode 100644
index 00000000..26848294
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/ha_init_child2_1.inc
@@ -0,0 +1,8 @@
+let $CHILD2_1_HA_AS_DROP_TABLES=
+  $CHILD2_1_DROP_TABLES;
+let $CHILD2_1_HA_AS_CREATE_TABLES=
+  $CHILD2_1_CREATE_TABLES;
+let $CHILD2_1_HA_AS_DROP_TABLES2=
+  $CHILD2_1_DROP_TABLES2;
+let $CHILD2_1_HA_AS_CREATE_TABLES2=
+  $CHILD2_1_CREATE_TABLES2;
diff --git a/storage/spider/mysql-test/spider/include/ha_init_child2_2.inc b/storage/spider/mysql-test/spider/include/ha_init_child2_2.inc
new file mode 100644
index 00000000..205eaa6f
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/ha_init_child2_2.inc
@@ -0,0 +1,4 @@
+let $CHILD2_2_HA_DROP_TABLES=
+  $CHILD2_2_DROP_TABLES;
+let $CHILD2_2_HA_CREATE_TABLES=
+  $CHILD2_2_CREATE_TABLES;
diff --git a/storage/spider/mysql-test/spider/include/ha_init_child2_3.inc b/storage/spider/mysql-test/spider/include/ha_init_child2_3.inc
new file mode 100644
index 00000000..55cb8583
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/ha_init_child2_3.inc
@@ -0,0 +1,4 @@
+let $CHILD2_3_HA_DROP_TABLES=
+  $CHILD2_3_DROP_TABLES;
+let $CHILD2_3_HA_CREATE_TABLES=
+  $CHILD2_3_CREATE_TABLES;
diff --git a/storage/spider/mysql-test/spider/include/ha_init_child3_1.inc b/storage/spider/mysql-test/spider/include/ha_init_child3_1.inc
new file mode 100644
index 00000000..8357f0bd
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/ha_init_child3_1.inc
@@ -0,0 +1,140 @@
+--let $CHILD3_1_ENGINE_TYPE=Spider
+--let $CHILD3_1_ENGINE=ENGINE=Spider
+--source ../include/init_spider.inc
+eval INSERT INTO mysql.spider_link_mon_servers
+(db_name, table_name, link_id, sid, server, scheme, host, port, socket,
+ username, password, ssl_ca, ssl_capath, ssl_cert, ssl_cipher, ssl_key,
+ ssl_verify_server_cert, default_file, default_group) VALUES
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_1_SERVER_ID, 's_3_1', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_2_SERVER_ID, 's_3_2', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_3_SERVER_ID, 's_3_3', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL);
+let $CHILD3_1_CHECK_LINK_STATUS=
+  SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+  ORDER BY db_name, table_name, link_id;
+let $CHILD3_1_CHECK_LINK_FAILED_LOG=
+  SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+let $CHILD3_1_SET_RECOVERY_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 2"';
+let $CHILD3_1_SET_OK_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 1"';
+let $CHILD3_1_SET_OK_STATUS_AS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+  database "auto_test_remote auto_test_remote2", lst "1 0"';
+
+let $CHILD3_1_DROP_TABLES_HA_2_1=
+  DROP TABLE IF EXISTS ta_l;
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $CHILD3_1_CREATE_TABLES_HA_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_1_ENGINE $CHILD3_1_CHARSET
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $CHILD3_1_CREATE_TABLES_HA_AS_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_1_ENGINE $CHILD3_1_CHARSET
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $CHILD3_1_CREATE_TABLES_HA_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_1_ENGINE $CHILD3_1_CHARSET
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $CHILD3_1_CREATE_TABLES_HA_AS_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_1_ENGINE $CHILD3_1_CHARSET
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+let $CHILD3_1_DROP_TABLES_HA_P_2_1=
+  DROP TABLE IF EXISTS ta_l2;
+let $CHILD3_1_CREATE_TABLES_HA_P_2_1=
+  CREATE TABLE ta_l2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD3_1_ENGINE $CHILD3_1_CHARSET
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $CHILD3_1_CREATE_TABLES_HA_AS_P_2_1=
+  CREATE TABLE ta_l2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD3_1_ENGINE $CHILD3_1_CHARSET
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $CHILD3_1_SET_RECOVERY_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 2"'
+  );
+let $CHILD3_1_SET_OK_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 1"'
+  );
+let $CHILD3_1_SET_OK_STATUS_AS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "1 0"'
+  );
diff --git a/storage/spider/mysql-test/spider/include/ha_init_child3_2.inc b/storage/spider/mysql-test/spider/include/ha_init_child3_2.inc
new file mode 100644
index 00000000..3ffcec24
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/ha_init_child3_2.inc
@@ -0,0 +1,140 @@
+--let $CHILD3_2_ENGINE_TYPE=Spider
+--let $CHILD3_2_ENGINE=ENGINE=Spider
+--source ../include/init_spider.inc
+eval INSERT INTO mysql.spider_link_mon_servers
+(db_name, table_name, link_id, sid, server, scheme, host, port, socket,
+ username, password, ssl_ca, ssl_capath, ssl_cert, ssl_cipher, ssl_key,
+ ssl_verify_server_cert, default_file, default_group) VALUES
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_1_SERVER_ID, 's_3_1', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_2_SERVER_ID, 's_3_2', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_3_SERVER_ID, 's_3_3', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL);
+let $CHILD3_2_CHECK_LINK_STATUS=
+  SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+  ORDER BY db_name, table_name, link_id;
+let $CHILD3_2_CHECK_LINK_FAILED_LOG=
+  SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+let $CHILD3_2_SET_RECOVERY_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 2"';
+let $CHILD3_2_SET_OK_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 1"';
+let $CHILD3_2_SET_OK_STATUS_AS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+  database "auto_test_remote auto_test_remote2", lst "1 0"';
+
+let $CHILD3_2_DROP_TABLES_HA_2_1=
+  DROP TABLE IF EXISTS ta_l;
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $CHILD3_2_CREATE_TABLES_HA_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_2_ENGINE $CHILD3_2_CHARSET
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $CHILD3_2_CREATE_TABLES_HA_AS_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_2_ENGINE $CHILD3_2_CHARSET
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $CHILD3_2_CREATE_TABLES_HA_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_2_ENGINE $CHILD3_2_CHARSET
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $CHILD3_2_CREATE_TABLES_HA_AS_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_2_ENGINE $CHILD3_2_CHARSET
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+let $CHILD3_2_DROP_TABLES_HA_P_2_1=
+  DROP TABLE IF EXISTS ta_l2;
+let $CHILD3_2_CREATE_TABLES_HA_P_2_1=
+  CREATE TABLE ta_l2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD3_2_ENGINE $CHILD3_2_CHARSET
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $CHILD3_2_CREATE_TABLES_HA_AS_P_2_1=
+  CREATE TABLE ta_l2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD3_2_ENGINE $CHILD3_2_CHARSET
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $CHILD3_2_SET_RECOVERY_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 2"'
+  );
+let $CHILD3_2_SET_OK_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 1"'
+  );
+let $CHILD3_2_SET_OK_STATUS_AS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "1 0"'
+  );
diff --git a/storage/spider/mysql-test/spider/include/ha_init_child3_3.inc b/storage/spider/mysql-test/spider/include/ha_init_child3_3.inc
new file mode 100644
index 00000000..67bd0010
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/ha_init_child3_3.inc
@@ -0,0 +1,140 @@
+--let $CHILD3_3_ENGINE_TYPE=Spider
+--let $CHILD3_3_ENGINE=ENGINE=Spider
+--source ../include/init_spider.inc
+eval INSERT INTO mysql.spider_link_mon_servers
+(db_name, table_name, link_id, sid, server, scheme, host, port, socket,
+ username, password, ssl_ca, ssl_capath, ssl_cert, ssl_cipher, ssl_key,
+ ssl_verify_server_cert, default_file, default_group) VALUES
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_1_SERVER_ID, 's_3_1', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_2_SERVER_ID, 's_3_2', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_3_SERVER_ID, 's_3_3', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL);
+let $CHILD3_3_CHECK_LINK_STATUS=
+  SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+  ORDER BY db_name, table_name, link_id;
+let $CHILD3_3_CHECK_LINK_FAILED_LOG=
+  SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+let $CHILD3_3_SET_RECOVERY_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 2"';
+let $CHILD3_3_SET_OK_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 1"';
+let $CHILD3_3_SET_OK_STATUS_AS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+  database "auto_test_remote auto_test_remote2", lst "1 0"';
+
+let $CHILD3_3_DROP_TABLES_HA_2_1=
+  DROP TABLE IF EXISTS ta_l;
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $CHILD3_3_CREATE_TABLES_HA_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_3_ENGINE $CHILD3_3_CHARSET
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $CHILD3_3_CREATE_TABLES_HA_AS_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_3_ENGINE $CHILD3_3_CHARSET
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $CHILD3_3_CREATE_TABLES_HA_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_3_ENGINE $CHILD3_3_CHARSET
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $CHILD3_3_CREATE_TABLES_HA_AS_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_3_ENGINE $CHILD3_3_CHARSET
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+let $CHILD3_3_DROP_TABLES_HA_P_2_1=
+  DROP TABLE IF EXISTS ta_l2;
+let $CHILD3_3_CREATE_TABLES_HA_P_2_1=
+  CREATE TABLE ta_l2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD3_3_ENGINE $CHILD3_3_CHARSET
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $CHILD3_3_CREATE_TABLES_HA_AS_P_2_1=
+  CREATE TABLE ta_l2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD3_3_ENGINE $CHILD3_3_CHARSET
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $CHILD3_3_SET_RECOVERY_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 2"'
+  );
+let $CHILD3_3_SET_OK_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 1"'
+  );
+let $CHILD3_3_SET_OK_STATUS_AS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "1 0"'
+  );
diff --git a/storage/spider/mysql-test/spider/include/ha_init_master_1.inc b/storage/spider/mysql-test/spider/include/ha_init_master_1.inc
new file mode 100644
index 00000000..78797d80
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/ha_init_master_1.inc
@@ -0,0 +1,105 @@
+eval INSERT INTO mysql.spider_link_mon_servers
+(db_name, table_name, link_id, sid, server, scheme, host, port, socket,
+ username, password, ssl_ca, ssl_capath, ssl_cert, ssl_cipher, ssl_key,
+ ssl_verify_server_cert, default_file, default_group) VALUES
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_1_SERVER_ID, 's_3_1', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_2_SERVER_ID, 's_3_2', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_3_SERVER_ID, 's_3_3', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL);
+let $MASTER_1_CHECK_LINK_STATUS=
+  SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+  ORDER BY db_name, table_name, link_id;
+let $MASTER_1_CHECK_LINK_FAILED_LOG=
+  SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+let $MASTER_1_SET_RECOVERY_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 2"';
+let $MASTER_1_SET_OK_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 1"';
+let $MASTER_1_SET_OK_STATUS_AS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+  database "auto_test_remote auto_test_remote2", lst "1 0"';
+let $MASTER_1_COPY_TABLES_2_1=
+  SELECT spider_copy_tables('ta_l', '0', '1');
+
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT_HA_2_1=
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $MASTER_1_COMMENT_HA_AS_2_1=
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT_HA_2_1=
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $MASTER_1_COMMENT_HA_AS_2_1=
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+let $MASTER_1_COMMENT_HA_P_2_1=
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $MASTER_1_COMMENT_HA_AS_P_2_1=
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $MASTER_1_SET_RECOVERY_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 2"'
+  );
+let $MASTER_1_SET_OK_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 1"'
+  );
+let $MASTER_1_SET_OK_STATUS_AS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "1 0"'
+  );
+let $MASTER_1_COPY_TABLES_P_2_1=
+  SELECT spider_copy_tables('ta_l2#P#pt2', '0', '1');
+let $MASTER_1_CHECK_HA_STATUS=
+  SHOW STATUS LIKE 'Spider_mon_table_cache_version%';
+let $MASTER_1_CHANGE_HA_MON=
+  SELECT spider_flush_table_mon_cache();
diff --git a/storage/spider/mysql-test/spider/include/hs_deinit_child2_1.inc b/storage/spider/mysql-test/spider/include/hs_deinit_child2_1.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/hs_deinit_child2_1.inc
diff --git a/storage/spider/mysql-test/spider/include/hs_deinit_child2_2.inc b/storage/spider/mysql-test/spider/include/hs_deinit_child2_2.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/hs_deinit_child2_2.inc
diff --git a/storage/spider/mysql-test/spider/include/hs_deinit_child2_3.inc b/storage/spider/mysql-test/spider/include/hs_deinit_child2_3.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/hs_deinit_child2_3.inc
diff --git a/storage/spider/mysql-test/spider/include/hs_deinit_master_1.inc b/storage/spider/mysql-test/spider/include/hs_deinit_master_1.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/hs_deinit_master_1.inc
diff --git a/storage/spider/mysql-test/spider/include/hs_init_child2_1.inc b/storage/spider/mysql-test/spider/include/hs_init_child2_1.inc
new file mode 100644
index 00000000..ee006858
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/hs_init_child2_1.inc
@@ -0,0 +1,24 @@
+let $CHILD2_1_HS_DROP_TABLES=
+  DROP TABLE IF EXISTS hs_r;
+let $CHILD2_1_HS_CREATE_TABLES=
+  CREATE TABLE hs_r (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    d INT DEFAULT 11,
+    PRIMARY KEY(a)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_HS_SELECT_TABLES=
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s'), d FROM hs_r ORDER BY a;
+let $CHILD2_1_HS_DROP_TABLES2=
+  DROP TABLE IF EXISTS hs_r2;
+let $CHILD2_1_HS_CREATE_TABLES2=
+  CREATE TABLE hs_r2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    d INT DEFAULT 11,
+    PRIMARY KEY(a)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_HS_SELECT_TABLES2=
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s'), d FROM hs_r2 ORDER BY a;
diff --git a/storage/spider/mysql-test/spider/include/hs_init_child2_2.inc b/storage/spider/mysql-test/spider/include/hs_init_child2_2.inc
new file mode 100644
index 00000000..1c5a02d5
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/hs_init_child2_2.inc
@@ -0,0 +1,12 @@
+let $CHILD2_2_HS_DROP_TABLES=
+  DROP TABLE IF EXISTS hs_r3;
+let $CHILD2_2_HS_CREATE_TABLES=
+  CREATE TABLE hs_r3 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    d INT DEFAULT 11,
+    PRIMARY KEY(a)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+let $CHILD2_2_HS_SELECT_TABLES=
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s'), d FROM hs_r3 ORDER BY a;
diff --git a/storage/spider/mysql-test/spider/include/hs_init_child2_3.inc b/storage/spider/mysql-test/spider/include/hs_init_child2_3.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/hs_init_child2_3.inc
diff --git a/storage/spider/mysql-test/spider/include/hs_init_master_1.inc b/storage/spider/mysql-test/spider/include/hs_init_master_1.inc
new file mode 100644
index 00000000..0ff5e2a1
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/hs_init_master_1.inc
@@ -0,0 +1,12 @@
+let $MASTER_1_HS_COMMENT_TMP=
+  COMMENT='';
+let $MASTER_1_HS_COMMENT_2_1=
+  COMMENT='srv "s_2_1", table "hs_r", uhr "1", uhw "1", hrp "$CHILD2_1_HSRPORT", hwp "$CHILD2_1_HSWPORT"';
+let $MASTER_1_HS_COMMENT_P_2_1=
+  COMMENT='uhr "1", uhw "1"'
+  PARTITION BY RANGE(a) (
+    PARTITION pt1 VALUES LESS THAN (4)
+    COMMENT='srv "s_2_1", table "hs_r2", hrp "$CHILD2_1_HSRPORT", hwp "$CHILD2_1_HSWPORT"',
+    PARTITION pt2 VALUES LESS THAN MAXVALUE
+    COMMENT='srv "s_2_2", table "hs_r3", hrp "$CHILD2_2_HSRPORT", hwp "$CHILD2_2_HSWPORT"'
+  );
diff --git a/storage/spider/mysql-test/spider/include/init_child2_1.inc b/storage/spider/mysql-test/spider/include/init_child2_1.inc
new file mode 100644
index 00000000..782f538e
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/init_child2_1.inc
@@ -0,0 +1,192 @@
+--let $TEST_ENGINE_TYPE= $CHILD2_1_ENGINE_TYPE
+--source ../include/init_engine.inc
+--let $INIT_CHILD2_1_ENGINE= $INIT_TEST_ENGINE
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS ta_r;
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE ta_r (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a),
+    KEY idx1(b)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_SELECT_TABLES=
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_r ORDER BY a;
+let $CHILD2_1_DROP_TABLES2=
+  DROP TABLE IF EXISTS ta_r2;
+let $CHILD2_1_CREATE_TABLES2=
+  CREATE TABLE ta_r2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_SELECT_TABLES2=
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_r2 ORDER BY a;
+let $CHILD2_1_DROP_TABLES3=
+  DROP TABLE IF EXISTS ta_r_no_idx;
+let $CHILD2_1_CREATE_TABLES3=
+  CREATE TABLE ta_r_no_idx (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_SELECT_TABLES3=
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_r_no_idx ORDER BY a;
+let $CHILD2_1_DROP_TABLES4=
+  DROP TABLE IF EXISTS ta_r_auto_inc;
+let $CHILD2_1_CREATE_TABLES4=
+  CREATE TABLE ta_r_auto_inc (
+    a INT AUTO_INCREMENT,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_SELECT_TABLES4=
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_r_auto_inc
+  ORDER BY a;
+let $CHILD2_1_DROP_TABLES5=
+  DROP TABLE IF EXISTS ta_r_int;
+let $CHILD2_1_CREATE_TABLES5=
+  CREATE TABLE ta_r_int (
+    a INT AUTO_INCREMENT,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    PRIMARY KEY(a),
+    KEY idx1(b),
+    KEY idx2(c)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_SELECT_TABLES5=
+  SELECT a, b, c FROM ta_r_int ORDER BY a;
+let $CHILD2_1_DROP_TABLES6=
+  DROP TABLE IF EXISTS ta_r_3;
+let $CHILD2_1_CREATE_TABLES6=
+  CREATE TABLE ta_r_3 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_SELECT_TABLES6=
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_r_3 ORDER BY a;
+let $CHILD2_1_DROP_TABLES7=
+  DROP TABLE IF EXISTS ta_ob;
+let $CHILD2_1_CREATE_TABLES7=
+  CREATE TABLE ta_ob (
+    a VARCHAR(50) NOT NULL,
+    b VARCHAR(50) NULL DEFAULT NULL,
+    c VARCHAR(100) NULL DEFAULT NULL,
+    d DATETIME(0) NULL DEFAULT NULL,
+    e INT(11) NOT NULL,
+    f INT(10) NULL DEFAULT NULL,
+    PRIMARY KEY (a, e)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_SELECT_TABLES7=
+  SELECT * FROM ta_ob WHERE c LIKE "%510411106%" AND e = 510411 AND f != 1 ORDER BY d,c LIMIT 6 OFFSET 0;
+let $CHILD2_1_DROP_FT_TABLES=
+  DROP TABLE IF EXISTS ft_r;
+let $CHILD2_1_CREATE_FT_TABLES=
+  CREATE TABLE ft_r (
+    a INT DEFAULT 0,
+    b TEXT,
+    c TEXT,
+    d TEXT,
+    PRIMARY KEY(a),
+    FULLTEXT INDEX ft_idx1(b),
+    FULLTEXT INDEX ft_idx2(c)
+  ) $CHILD2_1_FT_ENGINE $CHILD2_1_FT_CHARSET;
+let $CHILD2_1_SELECT_FT_TABLES=
+  SELECT a, b, c, d FROM ft_r ORDER BY a;
+let $CHILD2_1_DROP_FT_TABLES2=
+  DROP TABLE IF EXISTS ft_r2;
+let $CHILD2_1_CREATE_FT_TABLES2=
+  CREATE TABLE ft_r2 (
+    a INT DEFAULT 0,
+    b TEXT,
+    c TEXT,
+    d TEXT,
+    PRIMARY KEY(a),
+    FULLTEXT INDEX ft_idx1(b),
+    FULLTEXT INDEX ft_idx2(c)
+  ) $CHILD2_1_FT_ENGINE $CHILD2_1_FT_CHARSET;
+let $CHILD2_1_SELECT_FT_TABLES2=
+  SELECT a, b, c, d FROM ft_r2 ORDER BY a;
+let $CHILD2_1_DROP_GM_TABLES=
+  DROP TABLE IF EXISTS gm_r;
+let $CHILD2_1_CREATE_GM_TABLES=
+  CREATE TABLE gm_r (
+    a INT DEFAULT 0,
+    b GEOMETRY NOT NULL,
+    c GEOMETRY NOT NULL,
+    PRIMARY KEY(a),
+    SPATIAL INDEX sp_idx1(b),
+    SPATIAL INDEX sp_idx2(c)
+  ) $CHILD2_1_GM_ENGINE $CHILD2_1_GM_CHARSET;
+let $CHILD2_1_SELECT_GM_TABLES=
+  SELECT a, b, c FROM gm_r ORDER BY a;
+let $CHILD2_1_DROP_GM_TABLES2=
+  DROP TABLE IF EXISTS gm_r2;
+let $CHILD2_1_CREATE_GM_TABLES2=
+  CREATE TABLE gm_r2 (
+    a INT DEFAULT 0,
+    b GEOMETRY NOT NULL,
+    c GEOMETRY NOT NULL,
+    PRIMARY KEY(a),
+    SPATIAL INDEX sp_idx1(b),
+    SPATIAL INDEX sp_idx2(c)
+  ) $CHILD2_1_GM_ENGINE $CHILD2_1_GM_CHARSET;
+let $CHILD2_1_SELECT_GM_TABLES2=
+  SELECT a, b, c FROM gm_r2 ORDER BY a;
+let $CHILD2_1_DROP_LOCK_TABLES1=
+  DROP TABLE IF EXISTS t1_1;
+let $CHILD2_1_CREATE_LOCK_TABLES1=
+  CREATE TABLE t1_1 (
+    id int(11) NOT NULL,
+    PRIMARY KEY (id)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_DROP_LOCK_TABLES2=
+  DROP TABLE IF EXISTS t2_2;
+let $CHILD2_1_CREATE_LOCK_TABLES2=
+  CREATE TABLE t2_2 (
+    id int(11) NOT NULL,
+    PRIMARY KEY (id)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_DROP_INCREMENT_TABLES1=
+  DROP TABLE IF EXISTS t1_1;
+let $CHILD2_1_CREATE_INCREMENT_TABLES1=
+  CREATE TABLE t1_1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_SELECT_INCREMENT_TABLES1=
+  SELECT id FROM t1_1 ORDER BY id;
+let $CHILD2_1_DROP_TEXT_PK_TABLES1=
+  DROP TABLE IF EXISTS t1;
+let $CHILD2_1_CREATE_TEXT_PK_TABLES1=
+  CREATE TABLE t1 (
+    a VARCHAR(255),
+    PRIMARY KEY (a)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET2;
+let $CHILD2_1_SELECT_TEXT_PK_TABLES1=
+  SELECT a FROM t1 ORDER BY a;
+let $CHILD2_1_DROP_TEXT_KEY_TABLES1=
+  DROP TABLE IF EXISTS t1;
+let $CHILD2_1_CREATE_TEXT_KEY_TABLES1=
+  CREATE TABLE t1 (
+    a VARCHAR(255),
+    b VARCHAR(255),
+    c VARCHAR(255),
+    KEY idx1(a,b),
+    KEY idx2(b),
+    PRIMARY KEY(c)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+let $CHILD2_1_SELECT_TEXT_KEY_TABLES1=
+  SELECT a, b FROM t1 ORDER BY a, b;
+let $CHILD2_1_AUTO_INCREMENT_INCREMENT1=
+  SET GLOBAL AUTO_INCREMENT_INCREMENT = 1;
+let $CHILD2_1_AUTO_INCREMENT_INCREMENT2=
+  SET GLOBAL AUTO_INCREMENT_INCREMENT = 4;
+let $CHILD2_1_AUTO_INCREMENT_OFFSET1=
+  SET GLOBAL AUTO_INCREMENT_OFFSET = 1;
+let $CHILD2_1_AUTO_INCREMENT_OFFSET2=
+  SET GLOBAL AUTO_INCREMENT_OFFSET = 2;
diff --git a/storage/spider/mysql-test/spider/include/init_child2_2.inc b/storage/spider/mysql-test/spider/include/init_child2_2.inc
new file mode 100644
index 00000000..5d7227e4
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/init_child2_2.inc
@@ -0,0 +1,83 @@
+--let $TEST_ENGINE_TYPE= $CHILD2_2_ENGINE_TYPE
+--source ../include/init_engine.inc
+--let $INIT_CHILD2_2_ENGINE= $INIT_TEST_ENGINE
+let $CHILD2_2_DROP_TABLES=
+  DROP TABLE IF EXISTS ta_r3;
+let $CHILD2_2_CREATE_TABLES=
+  CREATE TABLE ta_r3 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+let $CHILD2_2_DROP_TABLES5=
+  DROP TABLE IF EXISTS ta_r_int;
+let $CHILD2_2_CREATE_TABLES5=
+  CREATE TABLE ta_r_int (
+    a INT AUTO_INCREMENT,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    PRIMARY KEY(a),
+    KEY idx1(b),
+    KEY idx2(c)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+let $CHILD2_2_SELECT_TABLES=
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_r3 ORDER BY a;
+let $CHILD2_2_DROP_FT_TABLES=
+  DROP TABLE IF EXISTS ft_r3;
+let $CHILD2_2_CREATE_FT_TABLES=
+  CREATE TABLE ft_r3 (
+    a INT DEFAULT 0,
+    b TEXT,
+    c TEXT,
+    d TEXT,
+    PRIMARY KEY(a),
+    FULLTEXT INDEX ft_idx1(b),
+    FULLTEXT INDEX ft_idx2(c)
+  ) $CHILD2_2_FT_ENGINE $CHILD2_2_FT_CHARSET;
+let $CHILD2_2_SELECT_FT_TABLES=
+  SELECT a, b, c, d FROM ft_r3 ORDER BY a;
+let $CHILD2_2_DROP_GM_TABLES=
+  DROP TABLE IF EXISTS gm_r3;
+let $CHILD2_2_CREATE_GM_TABLES=
+  CREATE TABLE gm_r3 (
+    a INT DEFAULT 0,
+    b GEOMETRY NOT NULL,
+    c GEOMETRY NOT NULL,
+    PRIMARY KEY(a),
+    SPATIAL INDEX sp_idx1(b),
+    SPATIAL INDEX sp_idx2(c)
+  ) $CHILD2_2_GM_ENGINE $CHILD2_2_GM_CHARSET;
+let $CHILD2_2_SELECT_GM_TABLES=
+  SELECT a, b, c FROM gm_r3 ORDER BY a;
+let $CHILD2_2_DROP_LOCK_TABLES1=
+  DROP TABLE IF EXISTS t1_2;
+let $CHILD2_2_CREATE_LOCK_TABLES1=
+  CREATE TABLE t1_2 (
+    id int(11) NOT NULL,
+    PRIMARY KEY (id)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+let $CHILD2_2_DROP_LOCK_TABLES2=
+  DROP TABLE IF EXISTS t2_1;
+let $CHILD2_2_CREATE_LOCK_TABLES2=
+  CREATE TABLE t2_1 (
+    id int(11) NOT NULL,
+    PRIMARY KEY (id)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+let $CHILD2_2_DROP_INCREMENT_TABLES1=
+  DROP TABLE IF EXISTS t1_2;
+let $CHILD2_2_CREATE_INCREMENT_TABLES1=
+  CREATE TABLE t1_2 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+let $CHILD2_2_SELECT_INCREMENT_TABLES1=
+  SELECT id FROM t1_2 ORDER BY id;
+let $CHILD2_2_AUTO_INCREMENT_INCREMENT1=
+  SET GLOBAL AUTO_INCREMENT_INCREMENT = 1;
+let $CHILD2_2_AUTO_INCREMENT_INCREMENT2=
+  SET GLOBAL AUTO_INCREMENT_INCREMENT = 4;
+let $CHILD2_2_AUTO_INCREMENT_OFFSET1=
+  SET GLOBAL AUTO_INCREMENT_OFFSET = 1;
+let $CHILD2_2_AUTO_INCREMENT_OFFSET2=
+  SET GLOBAL AUTO_INCREMENT_OFFSET = 3;
diff --git a/storage/spider/mysql-test/spider/include/init_child2_3.inc b/storage/spider/mysql-test/spider/include/init_child2_3.inc
new file mode 100644
index 00000000..0ae24062
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/init_child2_3.inc
@@ -0,0 +1,14 @@
+--let $TEST_ENGINE_TYPE= $CHILD2_3_ENGINE_TYPE
+--source ../include/init_engine.inc
+--let $INIT_CHILD2_3_ENGINE= $INIT_TEST_ENGINE
+let $CHILD2_3_DROP_TABLES=
+  DROP TABLE IF EXISTS ta_r4;
+let $CHILD2_3_CREATE_TABLES=
+  CREATE TABLE ta_r4 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD2_3_ENGINE $CHILD2_3_CHARSET;
+let $CHILD2_3_SELECT_TABLES=
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_r4 ORDER BY a;
diff --git a/storage/spider/mysql-test/spider/include/init_child3_1.inc b/storage/spider/mysql-test/spider/include/init_child3_1.inc
new file mode 100644
index 00000000..0c83d926
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/init_child3_1.inc
@@ -0,0 +1,3 @@
+--let $TEST_ENGINE_TYPE= $CHILD3_1_ENGINE_TYPE
+--source ../include/init_engine.inc
+--let $INIT_CHILD3_1_ENGINE= $INIT_TEST_ENGINE
diff --git a/storage/spider/mysql-test/spider/include/init_child3_2.inc b/storage/spider/mysql-test/spider/include/init_child3_2.inc
new file mode 100644
index 00000000..29abb5c8
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/init_child3_2.inc
@@ -0,0 +1,3 @@
+--let $TEST_ENGINE_TYPE= $CHILD3_2_ENGINE_TYPE
+--source ../include/init_engine.inc
+--let $INIT_CHILD3_2_ENGINE= $INIT_TEST_ENGINE
diff --git a/storage/spider/mysql-test/spider/include/init_child3_3.inc b/storage/spider/mysql-test/spider/include/init_child3_3.inc
new file mode 100644
index 00000000..9fee4d34
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/init_child3_3.inc
@@ -0,0 +1,3 @@
+--let $TEST_ENGINE_TYPE= $CHILD3_3_ENGINE_TYPE
+--source ../include/init_engine.inc
+--let $INIT_CHILD3_3_ENGINE= $INIT_TEST_ENGINE
diff --git a/storage/spider/mysql-test/spider/include/init_engine.inc b/storage/spider/mysql-test/spider/include/init_engine.inc
new file mode 100644
index 00000000..820a598f
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/init_engine.inc
@@ -0,0 +1,10 @@
+let $INIT_TEST_ENGINE=0;
+if (!`SELECT count(*) FROM information_schema.engines WHERE
+      (support = 'YES' OR support = 'DEFAULT') AND
+      engine = '$TEST_ENGINE_TYPE'`)
+{
+  if (!$SKIP_REASON)
+  {
+    --let $SKIP_REASON= "Need $TEST_ENGINE_TYPE engine"
+  }
+}
diff --git a/storage/spider/mysql-test/spider/include/init_master_1.inc b/storage/spider/mysql-test/spider/include/init_master_1.inc
new file mode 100644
index 00000000..460142b9
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/init_master_1.inc
@@ -0,0 +1,195 @@
+--source ../include/init_spider.inc
+SET spider_direct_order_limit= 10000;
+SET spider_init_sql_alloc_size= 1;
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT_2_1=
+    COMMENT='database "auto_test_remote", table "ta_r"'
+    CONNECTION='host "localhost", port "$CHILD2_1_MYPORT", user "root",
+    password ""';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT_2_1=
+    COMMENT='database "auto_test_remote", table "ta_r"'
+    CONNECTION='host "localhost", socket "$CHILD2_1_MYSOCK", user "root",
+    password ""';
+}
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT2_2_1=
+    COMMENT='database "auto_test_remote", table "ta_r_no_idx"'
+    CONNECTION='host "localhost", port "$CHILD2_1_MYPORT", user "root",
+    password "", prt "2000000"';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT2_2_1=
+    COMMENT='database "auto_test_remote", table "ta_r_no_idx"'
+    CONNECTION='host "localhost", socket "$CHILD2_1_MYSOCK", user "root",
+    password "", prt "2000000"';
+}
+let $MASTER_1_COMMENT_P_2_1=
+  COMMENT='table "ta_r3"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1", table "ta_r2",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_2", priority "1000001"'
+  );
+let $MASTER_1_COMMENT2_P_2_1=
+  COMMENT='table "ta_r3"'
+  PARTITION BY RANGE(a) (
+    PARTITION pt1 VALUES LESS THAN (4) COMMENT='srv "s_2_1",
+    table "ta_r2", priority "1000"',
+    PARTITION pt2 VALUES LESS THAN MAXVALUE
+    COMMENT='srv "s_2_2", priority "1000001"'
+  );
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT3_2_1=
+    COMMENT='database "auto_test_remote", table "ta_r_auto_inc"'
+    CONNECTION='host "localhost", port "$CHILD2_1_MYPORT", user "root",
+    password ""';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT3_2_1=
+    COMMENT='database "auto_test_remote", table "ta_r_auto_inc"'
+    CONNECTION='host "localhost", socket "$CHILD2_1_MYSOCK", user "root",
+    password ""';
+}
+let $MASTER_1_COMMENT3_P_2_1=
+  COMMENT='table "ta_r_int"'
+  PARTITION BY LIST(MOD(a, 2)) (
+    PARTITION pt1 VALUES IN (0)
+    COMMENT='srv "s_2_1", priority "1000"',
+    PARTITION pt2 VALUES IN (1)
+    COMMENT='srv "s_2_2", priority "1000001"'
+  );
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT4_2_1=
+    COMMENT='database "auto_test_remote", table "ta_r_int"'
+    CONNECTION='host "localhost", port "$CHILD2_1_MYPORT", user "root",
+    password ""';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT4_2_1=
+    COMMENT='database "auto_test_remote", table "ta_r_int"'
+    CONNECTION='host "localhost", socket "$CHILD2_1_MYSOCK", user "root",
+    password ""';
+}
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT5_2_1=
+    COMMENT='database "auto_test_remote", table "ta_r_3"'
+    CONNECTION='host "localhost", port "$CHILD2_1_MYPORT", user "root",
+    password ""';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT5_2_1=
+    COMMENT='database "auto_test_remote", table "ta_r_3"'
+    CONNECTION='host "localhost", socket "$CHILD2_1_MYSOCK", user "root",
+    password ""';
+}
+let $MASTER_1_COMMENT6_P_1_1=
+  COMMENT='database "auto_test_remote", table "ta_ob"'
+  PARTITION BY LIST COLUMNS (e) PARTITIONS 1
+  (PARTITION pt1 values in (510411) COMMENT = 'srv "s_2_1"');
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT_FT_2_1=
+    COMMENT='database "auto_test_remote", table "ft_r"'
+    CONNECTION='host "localhost", port "$CHILD2_1_MYPORT", user "root",
+    password ""';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT_FT_2_1=
+    COMMENT='database "auto_test_remote", table "ft_r"'
+    CONNECTION='host "localhost", socket "$CHILD2_1_MYSOCK", user "root",
+    password ""';
+}
+let $MASTER_1_COMMENT2_FT_P_2_1=
+  COMMENT='table "ft_r3"'
+  PARTITION BY RANGE(a) (
+    PARTITION pt1 VALUES LESS THAN (4) COMMENT='srv "s_2_1",
+    table "ft_r2", priority "1000"',
+    PARTITION pt2 VALUES LESS THAN MAXVALUE
+    COMMENT='srv "s_2_2", priority "1000001"'
+  );
+let $MASTER_1_COMMENT_GM_2_1=
+  COMMENT='srv "s_2_1", table "gm_r"';
+let $MASTER_1_COMMENT2_GM_P_2_1=
+  COMMENT='table "gm_r3"'
+  PARTITION BY RANGE(a) (
+    PARTITION pt1 VALUES LESS THAN (4) COMMENT='srv "s_2_1",
+    table "gm_r2", priority "1000"',
+    PARTITION pt2 VALUES LESS THAN MAXVALUE
+    COMMENT='srv "s_2_2", priority "1000001"'
+  );
+let $MASTER_1_COMMENT_LOCK1=
+  COMMENT 'tbl "t1_1 t1_2", srv "s_2_1 s_2_2"';
+let $MASTER_1_COMMENT_LOCK2=
+  COMMENT 'tbl "t2_1 t2_2", srv "s_2_2 s_2_1"';
+let $MASTER_1_COMMENT_INCREMENT1_1=
+  COMMENT 'aim "0", tbl "t1_1", srv "s_2_1"';
+let $MASTER_1_COMMENT_INCREMENT1_P_1=
+  COMMENT 'aim "0"'
+  PARTITION BY LIST(MOD(id, 2)) (
+    PARTITION pt1 VALUES IN (0)
+    COMMENT='tbl "t1_1", srv "s_2_1"',
+    PARTITION pt2 VALUES IN (1)
+    COMMENT='tbl "t1_2", srv "s_2_2"'
+  );
+let $MASTER_1_COMMENT_READONLY1_1=
+  COMMENT 'read_only_mode "1", tbl "t1_1", srv "s_2_1"';
+let $MASTER_1_COMMENT_ERROR_MODE1_1=
+  COMMENT 'erm "1", ewm "1", tbl "ter1_1", srv "s_2_1"';
+let $MASTER_1_COMMENT_TEXT_PK1_1=
+  COMMENT 'tbl "t1", srv "s_2_1"';
+let $MASTER_1_COMMENT_TEXT_KEY1_1=
+  COMMENT 'tbl "t1", srv "s_2_1"';
+let $MASTER_1_COMMENT_MDEV_25985=
+  COMMENT='table "t1"'
+  PARTITION BY LIST COLUMNS(`a`) (
+    PARTITION `pt1` DEFAULT COMMENT = 'srv "s_2_1"'
+  );
+let $MASTER_1_CHECK_DIRECT_UPDATE_STATUS=
+  SHOW STATUS LIKE 'Spider_direct_update';
+let $MASTER_1_CHECK_DIRECT_DELETE_STATUS=
+  SHOW STATUS LIKE 'Spider_direct_delete';
+let $MASTER_1_CHECK_DIRECT_ORDER_LIMIT_STATUS=
+  SHOW STATUS LIKE 'Spider_direct_order_limit';
+let $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS=
+  SHOW STATUS LIKE 'Spider_direct_aggregate';
+let $MASTER_1_AUTO_INCREMENT_INCREMENT1=
+  SET SESSION AUTO_INCREMENT_INCREMENT = 1 $STR_SEMICOLON
+  SELECT spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 1', '',
+    'srv "s_2_1"') $STR_SEMICOLON
+  SELECT spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 1', '',
+    'srv "s_2_2"');
+let $MASTER_1_AUTO_INCREMENT_INCREMENT2=
+  SET SESSION AUTO_INCREMENT_INCREMENT = 777 $STR_SEMICOLON
+  SELECT spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 4', '',
+    'srv "s_2_1"') $STR_SEMICOLON
+  SELECT spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 4', '',
+    'srv "s_2_2"');
+let $MASTER_1_AUTO_INCREMENT_OFFSET1=
+  SET SESSION AUTO_INCREMENT_OFFSET = 1 $STR_SEMICOLON
+  SELECT spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 1', '',
+    'srv "s_2_1"') $STR_SEMICOLON
+  SELECT spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 1', '',
+    'srv "s_2_2"');
+let $MASTER_1_AUTO_INCREMENT_OFFSET2=
+  SET SESSION AUTO_INCREMENT_OFFSET = 777 $STR_SEMICOLON
+  SELECT spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 2', '',
+    'srv "s_2_1"') $STR_SEMICOLON
+  SELECT spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 3', '',
+    'srv "s_2_2"');
+let $MASTER_1_AUTO_INCREMENT_OFFSET3=
+  SET SESSION AUTO_INCREMENT_OFFSET = 1;
+let $MASTER_1_AUTO_INCREMENT_OFFSET4=
+  SET SESSION AUTO_INCREMENT_OFFSET = 777;
diff --git a/storage/spider/mysql-test/spider/include/init_slave1_1.inc b/storage/spider/mysql-test/spider/include/init_slave1_1.inc
new file mode 100644
index 00000000..73c3c6b9
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/init_slave1_1.inc
@@ -0,0 +1,10 @@
+let $SLAVE1_1_COMMENT_INCREMENT1_1=
+  COMMENT '';
+let $SLAVE1_1_COMMENT_INCREMENT1_P_1=
+  COMMENT ''
+  PARTITION BY LIST(MOD(id, 2)) (
+    PARTITION pt1 VALUES IN (0)
+    COMMENT='',
+    PARTITION pt2 VALUES IN (1)
+    COMMENT=''
+  );
diff --git a/storage/spider/mysql-test/spider/include/init_spider.inc b/storage/spider/mysql-test/spider/include/init_spider.inc
new file mode 100644
index 00000000..6a22ffcc
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/init_spider.inc
@@ -0,0 +1,197 @@
+let $VERSION_COMPILE_OS_WIN=
+  `SELECT IF(@@version_compile_os like 'Win%', 1, 0)`;
+if ($VERSION_COMPILE_OS_WIN)
+{
+  INSTALL PLUGIN spider SONAME 'ha_spider.dll';
+  if ($MASTER_1_MYPORT)
+  {
+    eval CREATE SERVER s_1 FOREIGN DATA WRAPPER mysql OPTIONS (
+      HOST 'localhost',
+      DATABASE 'auto_test_local',
+      USER 'root',
+      PASSWORD '',
+      PORT $MASTER_1_MYPORT
+    );
+  }
+  if ($CHILD2_1_MYPORT)
+  {
+    eval CREATE SERVER s_2_1 FOREIGN DATA WRAPPER mysql OPTIONS (
+      HOST 'localhost',
+      DATABASE 'auto_test_remote',
+      USER 'root',
+      PASSWORD '',
+      PORT $CHILD2_1_MYPORT
+    );
+  }
+  if ($CHILD2_2_MYPORT)
+  {
+    eval CREATE SERVER s_2_2 FOREIGN DATA WRAPPER mysql OPTIONS (
+      HOST 'localhost',
+      DATABASE 'auto_test_remote2',
+      USER 'root',
+      PASSWORD '',
+      PORT $CHILD2_2_MYPORT
+    );
+  }
+  if ($CHILD2_3_MYPORT)
+  {
+    eval CREATE SERVER s_2_3 FOREIGN DATA WRAPPER mysql OPTIONS (
+      HOST 'localhost',
+      DATABASE 'auto_test_remote3',
+      USER 'root',
+      PASSWORD '',
+      PORT $CHILD2_3_MYPORT
+    );
+  }
+  if ($CHILD3_1_MYPORT)
+  {
+    eval CREATE SERVER s_3_1 FOREIGN DATA WRAPPER mysql OPTIONS (
+      HOST 'localhost',
+      DATABASE 'auto_test_local',
+      USER 'root',
+      PASSWORD '',
+      PORT $CHILD3_1_MYPORT
+    );
+  }
+  if ($CHILD3_2_MYPORT)
+  {
+    eval CREATE SERVER s_3_2 FOREIGN DATA WRAPPER mysql OPTIONS (
+      HOST 'localhost',
+      DATABASE 'auto_test_local',
+      USER 'root',
+      PASSWORD '',
+      PORT $CHILD3_2_MYPORT
+    );
+  }
+  if ($CHILD2_3_MYPORT)
+  {
+    eval CREATE SERVER s_3_3 FOREIGN DATA WRAPPER mysql OPTIONS (
+      HOST 'localhost',
+      DATABASE 'auto_test_local',
+      USER 'root',
+      PASSWORD '',
+      PORT $CHILD2_3_MYPORT
+    );
+  }
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  INSTALL PLUGIN spider SONAME 'ha_spider.so';
+  if ($MASTER_1_MYSOCK)
+  {
+    eval CREATE SERVER s_1 FOREIGN DATA WRAPPER mysql OPTIONS (
+      HOST 'localhost',
+      DATABASE 'auto_test_local',
+      USER 'root',
+      PASSWORD '',
+      SOCKET '$MASTER_1_MYSOCK'
+    );
+  }
+  if ($CHILD2_1_MYSOCK)
+  {
+    eval CREATE SERVER s_2_1 FOREIGN DATA WRAPPER mysql OPTIONS (
+      HOST 'localhost',
+      DATABASE 'auto_test_remote',
+      USER 'root',
+      PASSWORD '',
+      SOCKET '$CHILD2_1_MYSOCK'
+    );
+  }
+  if ($CHILD2_2_MYSOCK)
+  {
+    eval CREATE SERVER s_2_2 FOREIGN DATA WRAPPER mysql OPTIONS (
+      HOST 'localhost',
+      DATABASE 'auto_test_remote2',
+      USER 'root',
+      PASSWORD '',
+      SOCKET '$CHILD2_2_MYSOCK'
+    );
+  }
+  if ($CHILD2_3_MYSOCK)
+  {
+    eval CREATE SERVER s_2_3 FOREIGN DATA WRAPPER mysql OPTIONS (
+      HOST 'localhost',
+      DATABASE 'auto_test_remote3',
+      USER 'root',
+      PASSWORD '',
+      SOCKET '$CHILD2_3_MYSOCK'
+    );
+  }
+  if ($CHILD3_1_MYSOCK)
+  {
+    eval CREATE SERVER s_3_1 FOREIGN DATA WRAPPER mysql OPTIONS (
+      HOST 'localhost',
+      DATABASE 'auto_test_local',
+      USER 'root',
+      PASSWORD '',
+      SOCKET '$CHILD3_1_MYSOCK'
+    );
+  }
+  if ($CHILD3_2_MYSOCK)
+  {
+    eval CREATE SERVER s_3_2 FOREIGN DATA WRAPPER mysql OPTIONS (
+      HOST 'localhost',
+      DATABASE 'auto_test_local',
+      USER 'root',
+      PASSWORD '',
+      SOCKET '$CHILD3_2_MYSOCK'
+    );
+  }
+  if ($CHILD3_3_MYSOCK)
+  {
+    eval CREATE SERVER s_3_3 FOREIGN DATA WRAPPER mysql OPTIONS (
+      HOST 'localhost',
+      DATABASE 'auto_test_local',
+      USER 'root',
+      PASSWORD '',
+      SOCKET '$CHILD3_3_MYSOCK'
+    );
+  }
+}
+
+let $SERVER_NAME=
+  `SELECT SUBSTRING_INDEX(SUBSTRING_INDEX(version(), '-', 2), '-', -1)`;
+if (`SELECT IF('$SERVER_NAME' REGEXP '^[0-9]+\$', 1, 0)`)
+{
+  let $SERVER_NAME=
+    `SELECT SUBSTRING_INDEX(SUBSTRING_INDEX(version(), '-', 3), '-', -1)`;
+}
+let $SERVER_MAJOR_VERSION=
+  `SELECT SUBSTRING_INDEX(version(), '.', 1)`;
+let $SERVER_MINOR_VERSION=
+  `SELECT SUBSTRING_INDEX(SUBSTRING_INDEX(version(), '.', 2), '.', -1)`;
+let $PLUGIN_VERSION=
+  `SELECT SUBSTRING_INDEX(plugin_version, '.', 1)
+     FROM information_schema.plugins
+    WHERE plugin_name = 'SPIDER'`;
+if (`SELECT IF($PLUGIN_VERSION = 3, 1, 0)`)
+{
+  let $HAS_REWRITE=
+    `SELECT IF (STRCMP('$SERVER_NAME', 'MariaDB') = 0,
+                IF ($SERVER_MAJOR_VERSION = 10,
+                    IF ($SERVER_MINOR_VERSION < 4,  0, 1),
+                    IF ($SERVER_MAJOR_VERSION < 10, 0, 1)),
+                0)`;
+  let $HAS_REWRITE= 0;
+  if ($HAS_REWRITE)
+  {
+    let $PLUGIN_NAME= spider_flush_rewrite_cache;
+    let $PLUGIN_EXIST=
+      `SELECT COUNT(*) FROM mysql.func WHERE name = '$PLUGIN_NAME'`;
+    while (!$PLUGIN_EXIST)
+    {
+      let $PLUGIN_EXIST=
+        `SELECT COUNT(*) FROM mysql.func WHERE name = '$PLUGIN_NAME'`;
+    }
+  }
+}
+let $PLUGIN_NAME= spider_flush_table_mon_cache;
+let $PLUGIN_EXIST=
+  `SELECT COUNT(*) FROM mysql.func WHERE name = '$PLUGIN_NAME'`;
+while (!$PLUGIN_EXIST)
+{
+  let $PLUGIN_EXIST=
+    `SELECT COUNT(*) FROM mysql.func WHERE name = '$PLUGIN_NAME'`;
+}
+
+SET spider_internal_sql_log_off= 0;
diff --git a/storage/spider/mysql-test/spider/include/partition_cond_push_deinit.inc b/storage/spider/mysql-test/spider/include/partition_cond_push_deinit.inc
new file mode 100644
index 00000000..668eaa2f
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/partition_cond_push_deinit.inc
@@ -0,0 +1,20 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $MASTER_1_COMMENT_2_2= $MASTER_1_COMMENT_2_2_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--let $CHILD2_2_DROP_TABLES= $CHILD2_2_DROP_TABLES_BACKUP
+--let $CHILD2_2_CREATE_TABLES= $CHILD2_2_CREATE_TABLES_BACKUP
+--let $CHILD2_2_SELECT_TABLES= $CHILD2_2_SELECT_TABLES_BACKUP
+--let $CHILD2_3_DROP_TABLES= $CHILD2_3_DROP_TABLES_BACKUP
+--let $CHILD2_3_CREATE_TABLES= $CHILD2_3_CREATE_TABLES_BACKUP
+--let $CHILD2_3_SELECT_TABLES= $CHILD2_3_SELECT_TABLES_BACKUP
+--let $OUTPUT_CHILD_GROUP2= $OUTPUT_CHILD_GROUP2_BACKUP
+--let $USE_GENERAL_LOG= $USE_GENERAL_LOG_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/include/partition_cond_push_init.inc b/storage/spider/mysql-test/spider/include/partition_cond_push_init.inc
new file mode 100644
index 00000000..30a333d6
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/partition_cond_push_init.inc
@@ -0,0 +1,58 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a"'
+  PARTITION BY KEY(value) (
+    PARTITION pt1 COMMENT='srv "s_2_1"',
+    PARTITION pt2 COMMENT='srv "s_2_2"',
+    PARTITION pt3 COMMENT='srv "s_2_3"'
+  );
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    value int NOT NULL
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT value FROM tbl_a ORDER BY value;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $CHILD2_2_DROP_TABLES_BACKUP= $CHILD2_2_DROP_TABLES
+let $CHILD2_2_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_2_CREATE_TABLES_BACKUP= $CHILD2_2_CREATE_TABLES
+let $CHILD2_2_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    value int NOT NULL
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+--let $CHILD2_2_SELECT_TABLES_BACKUP= $CHILD2_2_SELECT_TABLES
+let $CHILD2_2_SELECT_TABLES=
+  SELECT value FROM tbl_a ORDER BY value;
+let $CHILD2_2_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $CHILD2_3_DROP_TABLES_BACKUP= $CHILD2_3_DROP_TABLES
+let $CHILD2_3_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_3_CREATE_TABLES_BACKUP= $CHILD2_3_CREATE_TABLES
+let $CHILD2_3_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    value int NOT NULL
+  ) $CHILD2_3_ENGINE $CHILD2_3_CHARSET;
+--let $CHILD2_3_SELECT_TABLES_BACKUP= $CHILD2_3_SELECT_TABLES
+let $CHILD2_3_SELECT_TABLES=
+  SELECT value FROM tbl_a ORDER BY value;
+let $CHILD2_3_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $OUTPUT_CHILD_GROUP2_BACKUP= $OUTPUT_CHILD_GROUP2
+--let $OUTPUT_CHILD_GROUP2= 1
+--let $USE_GENERAL_LOG_BACKUP= $USE_GENERAL_LOG
+--let $USE_GENERAL_LOG= 1
diff --git a/storage/spider/mysql-test/spider/include/partition_fulltext_deinit.inc b/storage/spider/mysql-test/spider/include/partition_fulltext_deinit.inc
new file mode 100644
index 00000000..c0c652d1
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/partition_fulltext_deinit.inc
@@ -0,0 +1,23 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $MASTER_1_COMMENT_2_2= $MASTER_1_COMMENT_2_2_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--let $CHILD2_2_DROP_TABLES= $CHILD2_2_DROP_TABLES_BACKUP
+--let $CHILD2_2_CREATE_TABLES= $CHILD2_2_CREATE_TABLES_BACKUP
+--let $CHILD2_2_SELECT_TABLES= $CHILD2_2_SELECT_TABLES_BACKUP
+--let $CHILD2_3_DROP_TABLES= $CHILD2_3_DROP_TABLES_BACKUP
+--let $CHILD2_3_CREATE_TABLES= $CHILD2_3_CREATE_TABLES_BACKUP
+--let $CHILD2_3_SELECT_TABLES= $CHILD2_3_SELECT_TABLES_BACKUP
+--let $OUTPUT_CHILD_GROUP2= $OUTPUT_CHILD_GROUP2_BACKUP
+--let $USE_GENERAL_LOG= $USE_GENERAL_LOG_BACKUP
+--connection master_1
+set session join_cache_level= @old_join_cache_level;
+set session optimizer_switch= @old_optimizer_switch;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/include/partition_fulltext_init.inc b/storage/spider/mysql-test/spider/include/partition_fulltext_init.inc
new file mode 100644
index 00000000..75439549
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/partition_fulltext_init.inc
@@ -0,0 +1,72 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a", bka_mode "1"'
+  PARTITION BY KEY(pkey) (
+    PARTITION pt1 COMMENT='srv "s_2_1"',
+    PARTITION pt2 COMMENT='srv "s_2_2"',
+    PARTITION pt3 COMMENT='srv "s_2_3"'
+  );
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    words text NOT NULL,
+    PRIMARY KEY (pkey),
+    FULLTEXT (words)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT pkey FROM tbl_a ORDER BY pkey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $CHILD2_2_DROP_TABLES_BACKUP= $CHILD2_2_DROP_TABLES
+let $CHILD2_2_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_2_CREATE_TABLES_BACKUP= $CHILD2_2_CREATE_TABLES
+let $CHILD2_2_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    words text NOT NULL,
+    PRIMARY KEY (pkey),
+    FULLTEXT (words)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+--let $CHILD2_2_SELECT_TABLES_BACKUP= $CHILD2_2_SELECT_TABLES
+let $CHILD2_2_SELECT_TABLES=
+  SELECT pkey FROM tbl_a ORDER BY pkey;
+let $CHILD2_2_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $CHILD2_3_DROP_TABLES_BACKUP= $CHILD2_3_DROP_TABLES
+let $CHILD2_3_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_3_CREATE_TABLES_BACKUP= $CHILD2_3_CREATE_TABLES
+let $CHILD2_3_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    words text NOT NULL,
+    PRIMARY KEY (pkey),
+    FULLTEXT (words)
+  ) $CHILD2_3_ENGINE $CHILD2_3_CHARSET;
+--let $CHILD2_3_SELECT_TABLES_BACKUP= $CHILD2_3_SELECT_TABLES
+let $CHILD2_3_SELECT_TABLES=
+  SELECT pkey FROM tbl_a ORDER BY pkey;
+let $CHILD2_3_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $OUTPUT_CHILD_GROUP2_BACKUP= $OUTPUT_CHILD_GROUP2
+--let $OUTPUT_CHILD_GROUP2= 1
+--let $USE_GENERAL_LOG_BACKUP= $USE_GENERAL_LOG
+--let $USE_GENERAL_LOG= 1
+--connection master_1
+set @old_join_cache_level= @@join_cache_level;
+set session join_cache_level= 5;
+set @old_optimizer_switch= @@optimizer_switch;
+set session optimizer_switch= 'mrr=on';
diff --git a/storage/spider/mysql-test/spider/include/partition_join_pushdown_for_single_partition_deinit.inc b/storage/spider/mysql-test/spider/include/partition_join_pushdown_for_single_partition_deinit.inc
new file mode 100644
index 00000000..d9dfcf23
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/partition_join_pushdown_for_single_partition_deinit.inc
@@ -0,0 +1,30 @@
+--connection master_1
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $MASTER_1_COMMENT_2_2= $MASTER_1_COMMENT_2_2_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--let $CHILD2_1_DROP_TABLES2= $CHILD2_1_DROP_TABLES2_BACKUP
+--let $CHILD2_1_CREATE_TABLES2= $CHILD2_1_CREATE_TABLES2_BACKUP
+--let $CHILD2_1_SELECT_TABLES2= $CHILD2_1_SELECT_TABLES2_BACKUP
+--let $CHILD2_2_DROP_TABLES= $CHILD2_2_DROP_TABLES_BACKUP
+--let $CHILD2_2_CREATE_TABLES= $CHILD2_2_CREATE_TABLES_BACKUP
+--let $CHILD2_2_SELECT_TABLES= $CHILD2_2_SELECT_TABLES_BACKUP
+--let $CHILD2_2_DROP_TABLES2= $CHILD2_2_DROP_TABLES2_BACKUP
+--let $CHILD2_2_CREATE_TABLES2= $CHILD2_2_CREATE_TABLES2_BACKUP
+--let $CHILD2_2_SELECT_TABLES2= $CHILD2_2_SELECT_TABLES2_BACKUP
+--let $CHILD2_3_DROP_TABLES= $CHILD2_3_DROP_TABLES_BACKUP
+--let $CHILD2_3_CREATE_TABLES= $CHILD2_3_CREATE_TABLES_BACKUP
+--let $CHILD2_3_SELECT_TABLES= $CHILD2_3_SELECT_TABLES_BACKUP
+--let $CHILD2_3_DROP_TABLES2= $CHILD2_3_DROP_TABLES2_BACKUP
+--let $CHILD2_3_CREATE_TABLES2= $CHILD2_3_CREATE_TABLES2_BACKUP
+--let $CHILD2_3_SELECT_TABLES2= $CHILD2_3_SELECT_TABLES2_BACKUP
+--let $OUTPUT_CHILD_GROUP2= $OUTPUT_CHILD_GROUP2_BACKUP
+--let $USE_GENERAL_LOG= $USE_GENERAL_LOG_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/include/partition_join_pushdown_for_single_partition_init.inc b/storage/spider/mysql-test/spider/include/partition_join_pushdown_for_single_partition_init.inc
new file mode 100644
index 00000000..dccffa60
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/partition_join_pushdown_for_single_partition_init.inc
@@ -0,0 +1,105 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a"'
+  PARTITION BY RANGE(value) (
+    PARTITION pt1 VALUES LESS THAN (5) COMMENT='srv "s_2_1"',
+    PARTITION pt2 VALUES LESS THAN (10) COMMENT='srv "s_2_2"',
+    PARTITION pt3 VALUES LESS THAN (15) COMMENT='srv "s_2_3"'
+  );
+--let $MASTER_1_COMMENT_2_2_BACKUP= $MASTER_1_COMMENT_2_2
+let $MASTER_1_COMMENT_2_2=
+  COMMENT='table "tbl_b"'
+  PARTITION BY RANGE(value2) (
+    PARTITION pt1 VALUES LESS THAN (5) COMMENT='srv "s_2_1"',
+    PARTITION pt2 VALUES LESS THAN (10) COMMENT='srv "s_2_2"',
+    PARTITION pt3 VALUES LESS THAN (15) COMMENT='srv "s_2_3"'
+  );
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    value int NOT NULL,
+    PRIMARY KEY(value)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT value FROM tbl_a ORDER BY value;
+--let $CHILD2_1_DROP_TABLES2_BACKUP= $CHILD2_1_DROP_TABLES2
+let $CHILD2_1_DROP_TABLES2=
+  DROP TABLE IF EXISTS tbl_b;
+--let $CHILD2_1_CREATE_TABLES2_BACKUP= $CHILD2_1_CREATE_TABLES2
+let $CHILD2_1_CREATE_TABLES2=
+  CREATE TABLE tbl_b (
+    value2 int NOT NULL,
+    PRIMARY KEY(value2)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES2_BACKUP= $CHILD2_1_SELECT_TABLES2
+let $CHILD2_1_SELECT_TABLES2=
+  SELECT value FROM tbl_b ORDER BY value2;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $CHILD2_2_DROP_TABLES_BACKUP= $CHILD2_2_DROP_TABLES
+let $CHILD2_2_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_2_CREATE_TABLES_BACKUP= $CHILD2_2_CREATE_TABLES
+let $CHILD2_2_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    value int NOT NULL,
+    PRIMARY KEY(value)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+--let $CHILD2_2_SELECT_TABLES_BACKUP= $CHILD2_2_SELECT_TABLES
+let $CHILD2_2_SELECT_TABLES=
+  SELECT value FROM tbl_a ORDER BY value;
+--let $CHILD2_2_DROP_TABLES2_BACKUP= $CHILD2_2_DROP_TABLES2
+let $CHILD2_2_DROP_TABLES2=
+  DROP TABLE IF EXISTS tbl_b;
+--let $CHILD2_2_CREATE_TABLES2_BACKUP= $CHILD2_2_CREATE_TABLES2
+let $CHILD2_2_CREATE_TABLES2=
+  CREATE TABLE tbl_b (
+    value2 int NOT NULL,
+    PRIMARY KEY(value2)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+--let $CHILD2_2_SELECT_TABLES2_BACKUP= $CHILD2_2_SELECT_TABLES2
+let $CHILD2_2_SELECT_TABLES2=
+  SELECT value FROM tbl_b ORDER BY value;
+let $CHILD2_2_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $CHILD2_3_DROP_TABLES_BACKUP= $CHILD2_3_DROP_TABLES
+let $CHILD2_3_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_3_CREATE_TABLES_BACKUP= $CHILD2_3_CREATE_TABLES
+let $CHILD2_3_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    value int NOT NULL,
+    PRIMARY KEY(value)
+  ) $CHILD2_3_ENGINE $CHILD2_3_CHARSET;
+--let $CHILD2_3_SELECT_TABLES_BACKUP= $CHILD2_3_SELECT_TABLES
+let $CHILD2_3_SELECT_TABLES=
+  SELECT value FROM tbl_a ORDER BY value;
+--let $CHILD2_3_DROP_TABLES2_BACKUP= $CHILD2_3_DROP_TABLES2
+let $CHILD2_3_DROP_TABLES2=
+  DROP TABLE IF EXISTS tbl_b;
+--let $CHILD2_3_CREATE_TABLES2_BACKUP= $CHILD2_3_CREATE_TABLES2
+let $CHILD2_3_CREATE_TABLES2=
+  CREATE TABLE tbl_b (
+    value2 int NOT NULL,
+    PRIMARY KEY(value2)
+  ) $CHILD2_3_ENGINE $CHILD2_3_CHARSET;
+--let $CHILD2_3_SELECT_TABLES2_BACKUP= $CHILD2_3_SELECT_TABLES2
+let $CHILD2_3_SELECT_TABLES2=
+  SELECT value FROM tbl_b ORDER BY value;
+let $CHILD2_3_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $OUTPUT_CHILD_GROUP2_BACKUP= $OUTPUT_CHILD_GROUP2
+--let $OUTPUT_CHILD_GROUP2= 1
+--let $USE_GENERAL_LOG_BACKUP= $USE_GENERAL_LOG
+--let $USE_GENERAL_LOG= 1
diff --git a/storage/spider/mysql-test/spider/include/partition_mrr_deinit.inc b/storage/spider/mysql-test/spider/include/partition_mrr_deinit.inc
new file mode 100644
index 00000000..c0c652d1
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/partition_mrr_deinit.inc
@@ -0,0 +1,23 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $MASTER_1_COMMENT_2_2= $MASTER_1_COMMENT_2_2_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--let $CHILD2_2_DROP_TABLES= $CHILD2_2_DROP_TABLES_BACKUP
+--let $CHILD2_2_CREATE_TABLES= $CHILD2_2_CREATE_TABLES_BACKUP
+--let $CHILD2_2_SELECT_TABLES= $CHILD2_2_SELECT_TABLES_BACKUP
+--let $CHILD2_3_DROP_TABLES= $CHILD2_3_DROP_TABLES_BACKUP
+--let $CHILD2_3_CREATE_TABLES= $CHILD2_3_CREATE_TABLES_BACKUP
+--let $CHILD2_3_SELECT_TABLES= $CHILD2_3_SELECT_TABLES_BACKUP
+--let $OUTPUT_CHILD_GROUP2= $OUTPUT_CHILD_GROUP2_BACKUP
+--let $USE_GENERAL_LOG= $USE_GENERAL_LOG_BACKUP
+--connection master_1
+set session join_cache_level= @old_join_cache_level;
+set session optimizer_switch= @old_optimizer_switch;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/include/partition_mrr_init.inc b/storage/spider/mysql-test/spider/include/partition_mrr_init.inc
new file mode 100644
index 00000000..03e11394
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/partition_mrr_init.inc
@@ -0,0 +1,92 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a", bka_mode "1"'
+  PARTITION BY KEY(pkey) (
+    PARTITION pt1 COMMENT='srv "s_2_1"',
+    PARTITION pt2 COMMENT='srv "s_2_2"',
+    PARTITION pt3 COMMENT='srv "s_2_3"'
+  );
+--let $MASTER_1_COMMENT_2_2_BACKUP= $MASTER_1_COMMENT_2_2
+let $MASTER_1_COMMENT_2_2=
+  COMMENT='table "tbl_b", bka_mode "1"'
+  PARTITION BY KEY(pkey) (
+    PARTITION pt1 COMMENT='srv "s_2_2"',
+    PARTITION pt2 COMMENT='srv "s_2_3"',
+    PARTITION pt3 COMMENT='srv "s_2_1"'
+  );
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a $STR_SEMICOLON
+  DROP TABLE IF EXISTS tbl_b;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET $STR_SEMICOLON
+  CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT pkey FROM tbl_a ORDER BY pkey $STR_SEMICOLON
+  SELECT pkey FROM tbl_b ORDER BY pkey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $CHILD2_2_DROP_TABLES_BACKUP= $CHILD2_2_DROP_TABLES
+let $CHILD2_2_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a $STR_SEMICOLON
+  DROP TABLE IF EXISTS tbl_b;
+--let $CHILD2_2_CREATE_TABLES_BACKUP= $CHILD2_2_CREATE_TABLES
+let $CHILD2_2_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET $STR_SEMICOLON
+  CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+--let $CHILD2_2_SELECT_TABLES_BACKUP= $CHILD2_2_SELECT_TABLES
+let $CHILD2_2_SELECT_TABLES=
+  SELECT pkey FROM tbl_a ORDER BY pkey $STR_SEMICOLON
+  SELECT pkey FROM tbl_b ORDER BY pkey;
+let $CHILD2_2_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $CHILD2_3_DROP_TABLES_BACKUP= $CHILD2_3_DROP_TABLES
+let $CHILD2_3_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a $STR_SEMICOLON
+  DROP TABLE IF EXISTS tbl_b;
+--let $CHILD2_3_CREATE_TABLES_BACKUP= $CHILD2_3_CREATE_TABLES
+let $CHILD2_3_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_3_ENGINE $CHILD2_3_CHARSET $STR_SEMICOLON
+  CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_3_ENGINE $CHILD2_3_CHARSET;
+--let $CHILD2_3_SELECT_TABLES_BACKUP= $CHILD2_3_SELECT_TABLES
+let $CHILD2_3_SELECT_TABLES=
+  SELECT pkey FROM tbl_a ORDER BY pkey $STR_SEMICOLON
+  SELECT pkey FROM tbl_b ORDER BY pkey;
+let $CHILD2_3_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $OUTPUT_CHILD_GROUP2_BACKUP= $OUTPUT_CHILD_GROUP2
+--let $OUTPUT_CHILD_GROUP2= 1
+--let $USE_GENERAL_LOG_BACKUP= $USE_GENERAL_LOG
+--let $USE_GENERAL_LOG= 1
+--connection master_1
+set @old_join_cache_level= @@join_cache_level;
+set session join_cache_level= 5;
+set @old_optimizer_switch= @@optimizer_switch;
+set session optimizer_switch= 'mrr=on';
diff --git a/storage/spider/mysql-test/spider/include/quick_mode_0_deinit.inc b/storage/spider/mysql-test/spider/include/quick_mode_0_deinit.inc
new file mode 100644
index 00000000..72d09f54
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/quick_mode_0_deinit.inc
@@ -0,0 +1,21 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $MASTER_1_COMMENT_2_2= $MASTER_1_COMMENT_2_2_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--let $CHILD2_2_DROP_TABLES= $CHILD2_2_DROP_TABLES_BACKUP
+--let $CHILD2_2_CREATE_TABLES= $CHILD2_2_CREATE_TABLES_BACKUP
+--let $CHILD2_2_SELECT_TABLES= $CHILD2_2_SELECT_TABLES_BACKUP
+--let $OUTPUT_CHILD_GROUP2= $OUTPUT_CHILD_GROUP2_BACKUP
+--let $USE_GENERAL_LOG= $USE_GENERAL_LOG_BACKUP
+--connection master_1
+set session spider_quick_mode= @old_spider_quick_mode;
+set session spider_quick_page_size= @old_spider_quick_page_size;
+set session spider_quick_page_byte= @old_spider_quick_page_byte;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/include/quick_mode_0_init.inc b/storage/spider/mysql-test/spider/include/quick_mode_0_init.inc
new file mode 100644
index 00000000..92afb3bf
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/quick_mode_0_init.inc
@@ -0,0 +1,55 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a", srv "s_2_1"';
+--let $MASTER_1_COMMENT_2_2_BACKUP= $MASTER_1_COMMENT_2_2
+let $MASTER_1_COMMENT_2_2=
+  COMMENT='table "tbl_b", srv "s_2_2"';
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT pkey FROM tbl_a ORDER BY pkey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $CHILD2_2_DROP_TABLES_BACKUP= $CHILD2_2_DROP_TABLES
+let $CHILD2_2_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_b;
+--let $CHILD2_2_CREATE_TABLES_BACKUP= $CHILD2_2_CREATE_TABLES
+let $CHILD2_2_CREATE_TABLES=
+  CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+--let $CHILD2_2_SELECT_TABLES_BACKUP= $CHILD2_2_SELECT_TABLES
+let $CHILD2_2_SELECT_TABLES=
+  SELECT pkey FROM tbl_b ORDER BY pkey;
+let $CHILD2_2_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $OUTPUT_CHILD_GROUP2_BACKUP= $OUTPUT_CHILD_GROUP2
+--let $OUTPUT_CHILD_GROUP2= 1
+--let $USE_GENERAL_LOG_BACKUP= $USE_GENERAL_LOG
+--let $USE_GENERAL_LOG= 1
+--connection master_1
+set @old_spider_quick_mode= @@spider_quick_mode;
+set session spider_quick_mode= 0;
+set @old_spider_quick_page_size= @@spider_quick_page_size;
+set session spider_quick_page_size= 3;
+set @old_spider_quick_page_byte= @@spider_quick_page_byte;
+let $MASTER_1_SET_QUICK_PAGE_BYTE_6=
+  set session spider_quick_page_byte= 6;
+let $MASTER_1_SET_QUICK_PAGE_BYTE_0=
+  set session spider_quick_page_byte= 0;
diff --git a/storage/spider/mysql-test/spider/include/quick_mode_1_deinit.inc b/storage/spider/mysql-test/spider/include/quick_mode_1_deinit.inc
new file mode 100644
index 00000000..72d09f54
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/quick_mode_1_deinit.inc
@@ -0,0 +1,21 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $MASTER_1_COMMENT_2_2= $MASTER_1_COMMENT_2_2_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--let $CHILD2_2_DROP_TABLES= $CHILD2_2_DROP_TABLES_BACKUP
+--let $CHILD2_2_CREATE_TABLES= $CHILD2_2_CREATE_TABLES_BACKUP
+--let $CHILD2_2_SELECT_TABLES= $CHILD2_2_SELECT_TABLES_BACKUP
+--let $OUTPUT_CHILD_GROUP2= $OUTPUT_CHILD_GROUP2_BACKUP
+--let $USE_GENERAL_LOG= $USE_GENERAL_LOG_BACKUP
+--connection master_1
+set session spider_quick_mode= @old_spider_quick_mode;
+set session spider_quick_page_size= @old_spider_quick_page_size;
+set session spider_quick_page_byte= @old_spider_quick_page_byte;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/include/quick_mode_1_init.inc b/storage/spider/mysql-test/spider/include/quick_mode_1_init.inc
new file mode 100644
index 00000000..cc5a847f
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/quick_mode_1_init.inc
@@ -0,0 +1,55 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a", srv "s_2_1"';
+--let $MASTER_1_COMMENT_2_2_BACKUP= $MASTER_1_COMMENT_2_2
+let $MASTER_1_COMMENT_2_2=
+  COMMENT='table "tbl_b", srv "s_2_2"';
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT pkey FROM tbl_a ORDER BY pkey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $CHILD2_2_DROP_TABLES_BACKUP= $CHILD2_2_DROP_TABLES
+let $CHILD2_2_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_b;
+--let $CHILD2_2_CREATE_TABLES_BACKUP= $CHILD2_2_CREATE_TABLES
+let $CHILD2_2_CREATE_TABLES=
+  CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+--let $CHILD2_2_SELECT_TABLES_BACKUP= $CHILD2_2_SELECT_TABLES
+let $CHILD2_2_SELECT_TABLES=
+  SELECT pkey FROM tbl_b ORDER BY pkey;
+let $CHILD2_2_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $OUTPUT_CHILD_GROUP2_BACKUP= $OUTPUT_CHILD_GROUP2
+--let $OUTPUT_CHILD_GROUP2= 1
+--let $USE_GENERAL_LOG_BACKUP= $USE_GENERAL_LOG
+--let $USE_GENERAL_LOG= 1
+--connection master_1
+set @old_spider_quick_mode= @@spider_quick_mode;
+set session spider_quick_mode= 1;
+set @old_spider_quick_page_size= @@spider_quick_page_size;
+set session spider_quick_page_size= 3;
+set @old_spider_quick_page_byte= @@spider_quick_page_byte;
+let $MASTER_1_SET_QUICK_PAGE_BYTE_6=
+  set session spider_quick_page_byte= 6;
+let $MASTER_1_SET_QUICK_PAGE_BYTE_0=
+  set session spider_quick_page_byte= 0;
diff --git a/storage/spider/mysql-test/spider/include/quick_mode_2_deinit.inc b/storage/spider/mysql-test/spider/include/quick_mode_2_deinit.inc
new file mode 100644
index 00000000..72d09f54
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/quick_mode_2_deinit.inc
@@ -0,0 +1,21 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $MASTER_1_COMMENT_2_2= $MASTER_1_COMMENT_2_2_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--let $CHILD2_2_DROP_TABLES= $CHILD2_2_DROP_TABLES_BACKUP
+--let $CHILD2_2_CREATE_TABLES= $CHILD2_2_CREATE_TABLES_BACKUP
+--let $CHILD2_2_SELECT_TABLES= $CHILD2_2_SELECT_TABLES_BACKUP
+--let $OUTPUT_CHILD_GROUP2= $OUTPUT_CHILD_GROUP2_BACKUP
+--let $USE_GENERAL_LOG= $USE_GENERAL_LOG_BACKUP
+--connection master_1
+set session spider_quick_mode= @old_spider_quick_mode;
+set session spider_quick_page_size= @old_spider_quick_page_size;
+set session spider_quick_page_byte= @old_spider_quick_page_byte;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/include/quick_mode_2_init.inc b/storage/spider/mysql-test/spider/include/quick_mode_2_init.inc
new file mode 100644
index 00000000..3a16bb1d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/quick_mode_2_init.inc
@@ -0,0 +1,55 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a", srv "s_2_1"';
+--let $MASTER_1_COMMENT_2_2_BACKUP= $MASTER_1_COMMENT_2_2
+let $MASTER_1_COMMENT_2_2=
+  COMMENT='table "tbl_b", srv "s_2_2"';
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT pkey FROM tbl_a ORDER BY pkey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $CHILD2_2_DROP_TABLES_BACKUP= $CHILD2_2_DROP_TABLES
+let $CHILD2_2_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_b;
+--let $CHILD2_2_CREATE_TABLES_BACKUP= $CHILD2_2_CREATE_TABLES
+let $CHILD2_2_CREATE_TABLES=
+  CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+--let $CHILD2_2_SELECT_TABLES_BACKUP= $CHILD2_2_SELECT_TABLES
+let $CHILD2_2_SELECT_TABLES=
+  SELECT pkey FROM tbl_b ORDER BY pkey;
+let $CHILD2_2_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $OUTPUT_CHILD_GROUP2_BACKUP= $OUTPUT_CHILD_GROUP2
+--let $OUTPUT_CHILD_GROUP2= 1
+--let $USE_GENERAL_LOG_BACKUP= $USE_GENERAL_LOG
+--let $USE_GENERAL_LOG= 1
+--connection master_1
+set @old_spider_quick_mode= @@spider_quick_mode;
+set session spider_quick_mode= 2;
+set @old_spider_quick_page_size= @@spider_quick_page_size;
+set session spider_quick_page_size= 3;
+set @old_spider_quick_page_byte= @@spider_quick_page_byte;
+let $MASTER_1_SET_QUICK_PAGE_BYTE_6=
+  set session spider_quick_page_byte= 6;
+let $MASTER_1_SET_QUICK_PAGE_BYTE_0=
+  set session spider_quick_page_byte= 0;
diff --git a/storage/spider/mysql-test/spider/include/quick_mode_3_deinit.inc b/storage/spider/mysql-test/spider/include/quick_mode_3_deinit.inc
new file mode 100644
index 00000000..72d09f54
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/quick_mode_3_deinit.inc
@@ -0,0 +1,21 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $MASTER_1_COMMENT_2_2= $MASTER_1_COMMENT_2_2_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--let $CHILD2_2_DROP_TABLES= $CHILD2_2_DROP_TABLES_BACKUP
+--let $CHILD2_2_CREATE_TABLES= $CHILD2_2_CREATE_TABLES_BACKUP
+--let $CHILD2_2_SELECT_TABLES= $CHILD2_2_SELECT_TABLES_BACKUP
+--let $OUTPUT_CHILD_GROUP2= $OUTPUT_CHILD_GROUP2_BACKUP
+--let $USE_GENERAL_LOG= $USE_GENERAL_LOG_BACKUP
+--connection master_1
+set session spider_quick_mode= @old_spider_quick_mode;
+set session spider_quick_page_size= @old_spider_quick_page_size;
+set session spider_quick_page_byte= @old_spider_quick_page_byte;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/include/quick_mode_3_init.inc b/storage/spider/mysql-test/spider/include/quick_mode_3_init.inc
new file mode 100644
index 00000000..df7d713c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/quick_mode_3_init.inc
@@ -0,0 +1,55 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a", srv "s_2_1"';
+--let $MASTER_1_COMMENT_2_2_BACKUP= $MASTER_1_COMMENT_2_2
+let $MASTER_1_COMMENT_2_2=
+  COMMENT='table "tbl_b", srv "s_2_2"';
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT pkey FROM tbl_a ORDER BY pkey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $CHILD2_2_DROP_TABLES_BACKUP= $CHILD2_2_DROP_TABLES
+let $CHILD2_2_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_b;
+--let $CHILD2_2_CREATE_TABLES_BACKUP= $CHILD2_2_CREATE_TABLES
+let $CHILD2_2_CREATE_TABLES=
+  CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+--let $CHILD2_2_SELECT_TABLES_BACKUP= $CHILD2_2_SELECT_TABLES
+let $CHILD2_2_SELECT_TABLES=
+  SELECT pkey FROM tbl_b ORDER BY pkey;
+let $CHILD2_2_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $OUTPUT_CHILD_GROUP2_BACKUP= $OUTPUT_CHILD_GROUP2
+--let $OUTPUT_CHILD_GROUP2= 1
+--let $USE_GENERAL_LOG_BACKUP= $USE_GENERAL_LOG
+--let $USE_GENERAL_LOG= 1
+--connection master_1
+set @old_spider_quick_mode= @@spider_quick_mode;
+set session spider_quick_mode= 3;
+set @old_spider_quick_page_size= @@spider_quick_page_size;
+set session spider_quick_page_size= 3;
+set @old_spider_quick_page_byte= @@spider_quick_page_byte;
+let $MASTER_1_SET_QUICK_PAGE_BYTE_6=
+  set session spider_quick_page_byte= 6;
+let $MASTER_1_SET_QUICK_PAGE_BYTE_0=
+  set session spider_quick_page_byte= 0;
diff --git a/storage/spider/mysql-test/spider/include/slave_trx_isolation_deinit.inc b/storage/spider/mysql-test/spider/include/slave_trx_isolation_deinit.inc
new file mode 100644
index 00000000..e5f585e5
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/slave_trx_isolation_deinit.inc
@@ -0,0 +1,17 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--let $OUTPUT_CHILD_GROUP2= $OUTPUT_CHILD_GROUP2_BACKUP
+--let $USE_GENERAL_LOG= $USE_GENERAL_LOG_BACKUP
+--connection slave1_1
+set global spider_slave_trx_isolation= @old_spider_slave_trx_isolation;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../include/deinit_spider.inc
+--source ../t/slave_test_deinit.inc
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/include/slave_trx_isolation_init.inc b/storage/spider/mysql-test/spider/include/slave_trx_isolation_init.inc
new file mode 100644
index 00000000..94ccf1d3
--- /dev/null
+++ b/storage/spider/mysql-test/spider/include/slave_trx_isolation_init.inc
@@ -0,0 +1,39 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--source ../t/slave_test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a", srv "s_2_1"';
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT pkey FROM tbl_a ORDER BY pkey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%set %';
+--let $OUTPUT_CHILD_GROUP2_BACKUP= $OUTPUT_CHILD_GROUP2
+--let $OUTPUT_CHILD_GROUP2= 1
+--let $USE_GENERAL_LOG_BACKUP= $USE_GENERAL_LOG
+--let $USE_GENERAL_LOG= 1
+--connection slave1_1
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../include/init_spider.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+set @old_spider_slave_trx_isolation= @@spider_slave_trx_isolation;
+set global spider_slave_trx_isolation= 1;
diff --git a/storage/spider/mysql-test/spider/my.cnf b/storage/spider/mysql-test/spider/my.cnf
new file mode 100644
index 00000000..db4f7656
--- /dev/null
+++ b/storage/spider/mysql-test/spider/my.cnf
@@ -0,0 +1,177 @@
+# Use default setting for mysqld processes
+!include include/default_mysqld.cnf
+
+[mysqld.1.1]
+log-bin=                  master-bin
+loose_handlersocket_port=                20000
+loose_handlersocket_port_wr=             20001
+loose_handlersocket_threads=             2
+loose_handlersocket_threads_wr=          1
+loose_handlersocket_support_merge_table= 0
+loose_handlersocket_direct_update_mode=  2
+loose_handlersocket_unlimited_boundary=  65536
+loose_handlersocket_bulk_insert=         0
+loose_handlersocket_bulk_insert_timeout= 0
+loose_handlersocket_general_log=         1
+loose_handlersocket_timeout=             30
+loose_handlersocket_close_table_interval=2
+open_files_limit=                        4096
+loose_partition=                         1
+
+[mysqld.2.1]
+loose_handlersocket_port=                20002
+loose_handlersocket_port_wr=             20003
+loose_handlersocket_threads=             2
+loose_handlersocket_threads_wr=          1
+loose_handlersocket_support_merge_table= 0
+loose_handlersocket_direct_update_mode=  2
+loose_handlersocket_unlimited_boundary=  65536
+loose_handlersocket_bulk_insert=         0
+loose_handlersocket_bulk_insert_timeout= 0
+loose_handlersocket_general_log=         1
+loose_handlersocket_timeout=             30
+loose_handlersocket_close_table_interval=2
+open_files_limit=                        4096
+
+[mysqld.2.2]
+loose_handlersocket_port=                20004
+loose_handlersocket_port_wr=             20005
+loose_handlersocket_threads=             2
+loose_handlersocket_threads_wr=          1
+loose_handlersocket_support_merge_table= 0
+loose_handlersocket_direct_update_mode=  2
+loose_handlersocket_unlimited_boundary=  65536
+loose_handlersocket_bulk_insert=         0
+loose_handlersocket_bulk_insert_timeout= 0
+loose_handlersocket_general_log=         1
+loose_handlersocket_timeout=             30
+loose_handlersocket_close_table_interval=2
+open_files_limit=                        4096
+
+[mysqld.2.3]
+
+[mysqld.3.1]
+loose_partition=                         1
+
+[mysqld.3.2]
+loose_partition=                         1
+
+[mysqld.3.3]
+loose_partition=                         1
+
+[mysqld.4.1]
+loose_partition=                         1
+
+
+[ENV]
+USE_GEOMETRY_TEST=        1
+USE_FULLTEXT_TEST=        1
+USE_HA_TEST=              1
+USE_GENERAL_LOG=          1
+USE_REPLICATION=          1
+MASTER_1_MYPORT=          @mysqld.1.1.port
+MASTER_1_HSRPORT=         20000
+MASTER_1_HSWPORT=         20001
+MASTER_1_MYSOCK=          @mysqld.1.1.socket
+MASTER_1_ENGINE_TYPE=     Spider
+#MASTER_1_ENGINE_TYPE=     MyISAM
+MASTER_1_ENGINE=          ENGINE=Spider
+MASTER_1_CHARSET=         DEFAULT CHARSET=utf8
+MASTER_1_ENGINE2=         ENGINE=MyISAM
+MASTER_1_CHARSET2=        DEFAULT CHARSET=utf8
+MASTER_1_CHARSET3=        DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci
+SLAVE1_1_MYPORT=          @mysqld.4.1.port
+SLAVE1_1_MYSOCK=          @mysqld.4.1.socket
+SLAVE1_1_ENGINE_TYPE=     MyISAM
+SLAVE1_1_ENGINE=          ENGINE=MyISAM
+SLAVE1_1_CHARSET=         DEFAULT CHARSET=utf8
+USE_CHILD_GROUP2=         1
+OUTPUT_CHILD_GROUP2=      0
+CHILD2_1_MYPORT=          @mysqld.2.1.port
+CHILD2_1_HSRPORT=         20002
+CHILD2_1_HSWPORT=         20003
+CHILD2_1_MYSOCK=          @mysqld.2.1.socket
+CHILD2_1_ENGINE_TYPE=     InnoDB
+CHILD2_1_ENGINE=          ENGINE=InnoDB
+CHILD2_1_CHARSET=         DEFAULT CHARSET=utf8
+CHILD2_1_CHARSET2=        DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci
+CHILD2_2_MYPORT=          @mysqld.2.2.port
+CHILD2_2_HSRPORT=         20004
+CHILD2_2_HSWPORT=         20005
+CHILD2_2_MYSOCK=          @mysqld.2.2.socket
+CHILD2_2_ENGINE_TYPE=     InnoDB
+CHILD2_2_ENGINE=          ENGINE=InnoDB
+CHILD2_2_CHARSET=         DEFAULT CHARSET=utf8
+CHILD2_3_MYPORT=          @mysqld.2.3.port
+CHILD2_3_MYSOCK=          @mysqld.2.3.socket
+CHILD2_3_ENGINE_TYPE=     InnoDB
+CHILD2_3_ENGINE=          ENGINE=InnoDB
+CHILD2_3_CHARSET=         DEFAULT CHARSET=utf8
+CHILD2_1_FT_MYPORT=       @mysqld.2.1.port
+CHILD2_1_FT_MYSOCK=       @mysqld.2.1.socket
+CHILD2_1_FT_ENGINE_TYPE=  MyISAM
+CHILD2_1_FT_ENGINE=       ENGINE=MyISAM
+CHILD2_1_FT_CHARSET=      DEFAULT CHARSET=utf8
+CHILD2_2_FT_MYPORT=       @mysqld.2.2.port
+CHILD2_2_FT_MYSOCK=       @mysqld.2.2.socket
+CHILD2_2_FT_ENGINE_TYPE=  MyISAM
+CHILD2_2_FT_ENGINE=       ENGINE=MyISAM
+CHILD2_2_FT_CHARSET=      DEFAULT CHARSET=utf8
+CHILD2_1_GM_MYPORT=       @mysqld.2.1.port
+CHILD2_1_GM_MYSOCK=       @mysqld.2.1.socket
+CHILD2_1_GM_ENGINE_TYPE=  MyISAM
+CHILD2_1_GM_ENGINE=       ENGINE=MyISAM
+CHILD2_1_GM_CHARSET=      DEFAULT CHARSET=utf8
+CHILD2_2_GM_MYPORT=       @mysqld.2.2.port
+CHILD2_2_GM_MYSOCK=       @mysqld.2.2.socket
+CHILD2_2_GM_ENGINE_TYPE=  MyISAM
+CHILD2_2_GM_ENGINE=       ENGINE=MyISAM
+CHILD2_2_GM_CHARSET=      DEFAULT CHARSET=utf8
+USE_CHILD_GROUP3=         1
+OUTPUT_CHILD_GROUP3=      0
+CHILD3_1_MYPORT=          @mysqld.3.1.port
+CHILD3_1_MYSOCK=          @mysqld.3.1.socket
+CHILD3_1_ENGINE_TYPE=     InnoDB
+CHILD3_1_ENGINE=          ENGINE=InnoDB
+CHILD3_1_CHARSET=         DEFAULT CHARSET=utf8
+CHILD3_2_MYPORT=          @mysqld.3.2.port
+CHILD3_2_MYSOCK=          @mysqld.3.2.socket
+CHILD3_2_ENGINE_TYPE=     InnoDB
+CHILD3_2_ENGINE=          ENGINE=InnoDB
+CHILD3_2_CHARSET=         DEFAULT CHARSET=utf8
+CHILD3_3_MYPORT=          @mysqld.3.3.port
+CHILD3_3_MYSOCK=          @mysqld.3.3.socket
+CHILD3_3_ENGINE_TYPE=     InnoDB
+CHILD3_3_ENGINE=          ENGINE=InnoDB
+CHILD3_3_CHARSET=         DEFAULT CHARSET=utf8
+
+STR_SEMICOLON=            ;
+
+#The followings are set in include/init_xxx.inc files
+# MASTER_1_COMMENT_2_1
+# MASTER_1_COMMENT2_2_1
+# MASTER_1_COMMENT3_2_1
+# MASTER_1_COMMENT4_2_1
+# MASTER_1_COMMENT5_2_1
+# MASTER_1_COMMENT_P_2_1
+# CHILD2_1_DROP_TABLES
+# CHILD2_1_CREATE_TABLES
+# CHILD2_1_SELECT_TABLES
+# CHILD2_1_DROP_TABLES2
+# CHILD2_1_CREATE_TABLES2
+# CHILD2_1_SELECT_TABLES2
+# CHILD2_1_DROP_TABLES3
+# CHILD2_1_CREATE_TABLES3
+# CHILD2_1_SELECT_TABLES3
+# CHILD2_1_DROP_TABLES4
+# CHILD2_1_CREATE_TABLES4
+# CHILD2_1_SELECT_TABLES4
+# CHILD2_1_DROP_TABLES5
+# CHILD2_1_CREATE_TABLES5
+# CHILD2_1_SELECT_TABLES5
+# CHILD2_1_DROP_TABLES6
+# CHILD2_1_CREATE_TABLES6
+# CHILD2_1_SELECT_TABLES6
+# CHILD2_2_DROP_TABLES
+# CHILD2_2_CREATE_TABLES
+# CHILD2_2_SELECT_TABLES
diff --git a/storage/spider/mysql-test/spider/oracle/include/deinit_child2_1.inc b/storage/spider/mysql-test/spider/oracle/include/deinit_child2_1.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/deinit_child2_1.inc
diff --git a/storage/spider/mysql-test/spider/oracle/include/deinit_child2_2.inc b/storage/spider/mysql-test/spider/oracle/include/deinit_child2_2.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/deinit_child2_2.inc
diff --git a/storage/spider/mysql-test/spider/oracle/include/deinit_child2_3.inc b/storage/spider/mysql-test/spider/oracle/include/deinit_child2_3.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/deinit_child2_3.inc
diff --git a/storage/spider/mysql-test/spider/oracle/include/deinit_child3_1.inc b/storage/spider/mysql-test/spider/oracle/include/deinit_child3_1.inc
new file mode 100644
index 00000000..74c8efa9
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/deinit_child3_1.inc
@@ -0,0 +1,3 @@
+--let $TEST_ENGINE_TYPE= $CHILD3_1_ENGINE_TYPE
+--let $INIT_TEST_ENGINE= $INIT_CHILD3_1_ENGINE
+--source ../../include/deinit_engine.inc
diff --git a/storage/spider/mysql-test/spider/oracle/include/deinit_child3_2.inc b/storage/spider/mysql-test/spider/oracle/include/deinit_child3_2.inc
new file mode 100644
index 00000000..f42a980a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/deinit_child3_2.inc
@@ -0,0 +1,3 @@
+--let $TEST_ENGINE_TYPE= $CHILD3_2_ENGINE_TYPE
+--let $INIT_TEST_ENGINE= $INIT_CHILD3_2_ENGINE
+--source ../../include/deinit_engine.inc
diff --git a/storage/spider/mysql-test/spider/oracle/include/deinit_child3_3.inc b/storage/spider/mysql-test/spider/oracle/include/deinit_child3_3.inc
new file mode 100644
index 00000000..0696fb99
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/deinit_child3_3.inc
@@ -0,0 +1,3 @@
+--let $TEST_ENGINE_TYPE= $CHILD3_3_ENGINE_TYPE
+--let $INIT_TEST_ENGINE= $INIT_CHILD3_3_ENGINE
+--source ../../include/deinit_engine.inc
diff --git a/storage/spider/mysql-test/spider/oracle/include/deinit_master_1.inc b/storage/spider/mysql-test/spider/oracle/include/deinit_master_1.inc
new file mode 100644
index 00000000..c19e376d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/deinit_master_1.inc
@@ -0,0 +1 @@
+--source ../../include/deinit_spider.inc
diff --git a/storage/spider/mysql-test/spider/oracle/include/deinit_slave1_1.inc b/storage/spider/mysql-test/spider/oracle/include/deinit_slave1_1.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/deinit_slave1_1.inc
diff --git a/storage/spider/mysql-test/spider/oracle/include/ha_deinit_child2_1.inc b/storage/spider/mysql-test/spider/oracle/include/ha_deinit_child2_1.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/ha_deinit_child2_1.inc
diff --git a/storage/spider/mysql-test/spider/oracle/include/ha_deinit_child2_2.inc b/storage/spider/mysql-test/spider/oracle/include/ha_deinit_child2_2.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/ha_deinit_child2_2.inc
diff --git a/storage/spider/mysql-test/spider/oracle/include/ha_deinit_child2_3.inc b/storage/spider/mysql-test/spider/oracle/include/ha_deinit_child2_3.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/ha_deinit_child2_3.inc
diff --git a/storage/spider/mysql-test/spider/oracle/include/ha_deinit_child3_1.inc b/storage/spider/mysql-test/spider/oracle/include/ha_deinit_child3_1.inc
new file mode 100644
index 00000000..c19e376d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/ha_deinit_child3_1.inc
@@ -0,0 +1 @@
+--source ../../include/deinit_spider.inc
diff --git a/storage/spider/mysql-test/spider/oracle/include/ha_deinit_child3_2.inc b/storage/spider/mysql-test/spider/oracle/include/ha_deinit_child3_2.inc
new file mode 100644
index 00000000..c19e376d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/ha_deinit_child3_2.inc
@@ -0,0 +1 @@
+--source ../../include/deinit_spider.inc
diff --git a/storage/spider/mysql-test/spider/oracle/include/ha_deinit_child3_3.inc b/storage/spider/mysql-test/spider/oracle/include/ha_deinit_child3_3.inc
new file mode 100644
index 00000000..c19e376d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/ha_deinit_child3_3.inc
@@ -0,0 +1 @@
+--source ../../include/deinit_spider.inc
diff --git a/storage/spider/mysql-test/spider/oracle/include/ha_deinit_master_1.inc b/storage/spider/mysql-test/spider/oracle/include/ha_deinit_master_1.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/ha_deinit_master_1.inc
diff --git a/storage/spider/mysql-test/spider/oracle/include/ha_init_child2_1.inc b/storage/spider/mysql-test/spider/oracle/include/ha_init_child2_1.inc
new file mode 100644
index 00000000..26848294
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/ha_init_child2_1.inc
@@ -0,0 +1,8 @@
+let $CHILD2_1_HA_AS_DROP_TABLES=
+  $CHILD2_1_DROP_TABLES;
+let $CHILD2_1_HA_AS_CREATE_TABLES=
+  $CHILD2_1_CREATE_TABLES;
+let $CHILD2_1_HA_AS_DROP_TABLES2=
+  $CHILD2_1_DROP_TABLES2;
+let $CHILD2_1_HA_AS_CREATE_TABLES2=
+  $CHILD2_1_CREATE_TABLES2;
diff --git a/storage/spider/mysql-test/spider/oracle/include/ha_init_child2_2.inc b/storage/spider/mysql-test/spider/oracle/include/ha_init_child2_2.inc
new file mode 100644
index 00000000..205eaa6f
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/ha_init_child2_2.inc
@@ -0,0 +1,4 @@
+let $CHILD2_2_HA_DROP_TABLES=
+  $CHILD2_2_DROP_TABLES;
+let $CHILD2_2_HA_CREATE_TABLES=
+  $CHILD2_2_CREATE_TABLES;
diff --git a/storage/spider/mysql-test/spider/oracle/include/ha_init_child2_3.inc b/storage/spider/mysql-test/spider/oracle/include/ha_init_child2_3.inc
new file mode 100644
index 00000000..55cb8583
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/ha_init_child2_3.inc
@@ -0,0 +1,4 @@
+let $CHILD2_3_HA_DROP_TABLES=
+  $CHILD2_3_DROP_TABLES;
+let $CHILD2_3_HA_CREATE_TABLES=
+  $CHILD2_3_CREATE_TABLES;
diff --git a/storage/spider/mysql-test/spider/oracle/include/ha_init_child3_1.inc b/storage/spider/mysql-test/spider/oracle/include/ha_init_child3_1.inc
new file mode 100644
index 00000000..8357f0bd
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/ha_init_child3_1.inc
@@ -0,0 +1,140 @@
+--let $CHILD3_1_ENGINE_TYPE=Spider
+--let $CHILD3_1_ENGINE=ENGINE=Spider
+--source ../include/init_spider.inc
+eval INSERT INTO mysql.spider_link_mon_servers
+(db_name, table_name, link_id, sid, server, scheme, host, port, socket,
+ username, password, ssl_ca, ssl_capath, ssl_cert, ssl_cipher, ssl_key,
+ ssl_verify_server_cert, default_file, default_group) VALUES
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_1_SERVER_ID, 's_3_1', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_2_SERVER_ID, 's_3_2', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_3_SERVER_ID, 's_3_3', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL);
+let $CHILD3_1_CHECK_LINK_STATUS=
+  SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+  ORDER BY db_name, table_name, link_id;
+let $CHILD3_1_CHECK_LINK_FAILED_LOG=
+  SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+let $CHILD3_1_SET_RECOVERY_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 2"';
+let $CHILD3_1_SET_OK_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 1"';
+let $CHILD3_1_SET_OK_STATUS_AS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+  database "auto_test_remote auto_test_remote2", lst "1 0"';
+
+let $CHILD3_1_DROP_TABLES_HA_2_1=
+  DROP TABLE IF EXISTS ta_l;
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $CHILD3_1_CREATE_TABLES_HA_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_1_ENGINE $CHILD3_1_CHARSET
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $CHILD3_1_CREATE_TABLES_HA_AS_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_1_ENGINE $CHILD3_1_CHARSET
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $CHILD3_1_CREATE_TABLES_HA_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_1_ENGINE $CHILD3_1_CHARSET
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $CHILD3_1_CREATE_TABLES_HA_AS_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_1_ENGINE $CHILD3_1_CHARSET
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+let $CHILD3_1_DROP_TABLES_HA_P_2_1=
+  DROP TABLE IF EXISTS ta_l2;
+let $CHILD3_1_CREATE_TABLES_HA_P_2_1=
+  CREATE TABLE ta_l2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD3_1_ENGINE $CHILD3_1_CHARSET
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $CHILD3_1_CREATE_TABLES_HA_AS_P_2_1=
+  CREATE TABLE ta_l2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD3_1_ENGINE $CHILD3_1_CHARSET
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $CHILD3_1_SET_RECOVERY_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 2"'
+  );
+let $CHILD3_1_SET_OK_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 1"'
+  );
+let $CHILD3_1_SET_OK_STATUS_AS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "1 0"'
+  );
diff --git a/storage/spider/mysql-test/spider/oracle/include/ha_init_child3_2.inc b/storage/spider/mysql-test/spider/oracle/include/ha_init_child3_2.inc
new file mode 100644
index 00000000..3ffcec24
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/ha_init_child3_2.inc
@@ -0,0 +1,140 @@
+--let $CHILD3_2_ENGINE_TYPE=Spider
+--let $CHILD3_2_ENGINE=ENGINE=Spider
+--source ../include/init_spider.inc
+eval INSERT INTO mysql.spider_link_mon_servers
+(db_name, table_name, link_id, sid, server, scheme, host, port, socket,
+ username, password, ssl_ca, ssl_capath, ssl_cert, ssl_cipher, ssl_key,
+ ssl_verify_server_cert, default_file, default_group) VALUES
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_1_SERVER_ID, 's_3_1', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_2_SERVER_ID, 's_3_2', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_3_SERVER_ID, 's_3_3', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL);
+let $CHILD3_2_CHECK_LINK_STATUS=
+  SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+  ORDER BY db_name, table_name, link_id;
+let $CHILD3_2_CHECK_LINK_FAILED_LOG=
+  SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+let $CHILD3_2_SET_RECOVERY_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 2"';
+let $CHILD3_2_SET_OK_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 1"';
+let $CHILD3_2_SET_OK_STATUS_AS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+  database "auto_test_remote auto_test_remote2", lst "1 0"';
+
+let $CHILD3_2_DROP_TABLES_HA_2_1=
+  DROP TABLE IF EXISTS ta_l;
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $CHILD3_2_CREATE_TABLES_HA_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_2_ENGINE $CHILD3_2_CHARSET
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $CHILD3_2_CREATE_TABLES_HA_AS_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_2_ENGINE $CHILD3_2_CHARSET
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $CHILD3_2_CREATE_TABLES_HA_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_2_ENGINE $CHILD3_2_CHARSET
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $CHILD3_2_CREATE_TABLES_HA_AS_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_2_ENGINE $CHILD3_2_CHARSET
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+let $CHILD3_2_DROP_TABLES_HA_P_2_1=
+  DROP TABLE IF EXISTS ta_l2;
+let $CHILD3_2_CREATE_TABLES_HA_P_2_1=
+  CREATE TABLE ta_l2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD3_2_ENGINE $CHILD3_2_CHARSET
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $CHILD3_2_CREATE_TABLES_HA_AS_P_2_1=
+  CREATE TABLE ta_l2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD3_2_ENGINE $CHILD3_2_CHARSET
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $CHILD3_2_SET_RECOVERY_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 2"'
+  );
+let $CHILD3_2_SET_OK_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 1"'
+  );
+let $CHILD3_2_SET_OK_STATUS_AS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "1 0"'
+  );
diff --git a/storage/spider/mysql-test/spider/oracle/include/ha_init_child3_3.inc b/storage/spider/mysql-test/spider/oracle/include/ha_init_child3_3.inc
new file mode 100644
index 00000000..67bd0010
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/ha_init_child3_3.inc
@@ -0,0 +1,140 @@
+--let $CHILD3_3_ENGINE_TYPE=Spider
+--let $CHILD3_3_ENGINE=ENGINE=Spider
+--source ../include/init_spider.inc
+eval INSERT INTO mysql.spider_link_mon_servers
+(db_name, table_name, link_id, sid, server, scheme, host, port, socket,
+ username, password, ssl_ca, ssl_capath, ssl_cert, ssl_cipher, ssl_key,
+ ssl_verify_server_cert, default_file, default_group) VALUES
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_1_SERVER_ID, 's_3_1', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_2_SERVER_ID, 's_3_2', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_3_SERVER_ID, 's_3_3', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL);
+let $CHILD3_3_CHECK_LINK_STATUS=
+  SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+  ORDER BY db_name, table_name, link_id;
+let $CHILD3_3_CHECK_LINK_FAILED_LOG=
+  SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+let $CHILD3_3_SET_RECOVERY_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 2"';
+let $CHILD3_3_SET_OK_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 1"';
+let $CHILD3_3_SET_OK_STATUS_AS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+  database "auto_test_remote auto_test_remote2", lst "1 0"';
+
+let $CHILD3_3_DROP_TABLES_HA_2_1=
+  DROP TABLE IF EXISTS ta_l;
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $CHILD3_3_CREATE_TABLES_HA_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_3_ENGINE $CHILD3_3_CHARSET
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $CHILD3_3_CREATE_TABLES_HA_AS_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_3_ENGINE $CHILD3_3_CHARSET
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $CHILD3_3_CREATE_TABLES_HA_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_3_ENGINE $CHILD3_3_CHARSET
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $CHILD3_3_CREATE_TABLES_HA_AS_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_3_ENGINE $CHILD3_3_CHARSET
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+let $CHILD3_3_DROP_TABLES_HA_P_2_1=
+  DROP TABLE IF EXISTS ta_l2;
+let $CHILD3_3_CREATE_TABLES_HA_P_2_1=
+  CREATE TABLE ta_l2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD3_3_ENGINE $CHILD3_3_CHARSET
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $CHILD3_3_CREATE_TABLES_HA_AS_P_2_1=
+  CREATE TABLE ta_l2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD3_3_ENGINE $CHILD3_3_CHARSET
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $CHILD3_3_SET_RECOVERY_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 2"'
+  );
+let $CHILD3_3_SET_OK_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 1"'
+  );
+let $CHILD3_3_SET_OK_STATUS_AS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "1 0"'
+  );
diff --git a/storage/spider/mysql-test/spider/oracle/include/ha_init_master_1.inc b/storage/spider/mysql-test/spider/oracle/include/ha_init_master_1.inc
new file mode 100644
index 00000000..8ace39ab
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/ha_init_master_1.inc
@@ -0,0 +1,109 @@
+eval INSERT INTO mysql.spider_link_mon_servers
+(db_name, table_name, link_id, sid, server, scheme, host, port, socket,
+ username, password, ssl_ca, ssl_capath, ssl_cert, ssl_cipher, ssl_key,
+ ssl_verify_server_cert, default_file, default_group) VALUES
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_1_SERVER_ID, 's_3_1', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_2_SERVER_ID, 's_3_2', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_3_SERVER_ID, 's_3_3', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL);
+let $MASTER_1_CHECK_LINK_STATUS=
+  SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+  ORDER BY db_name, table_name, link_id;
+let $MASTER_1_CHECK_LINK_FAILED_LOG=
+  SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+let $MASTER_1_SET_RECOVERY_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "$ORACLE_HOST", user "$ORACLE_USER",
+  password "$ORACLE_PASSWORD", msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "$ORACLE_DATABASE", lst "0 2"';
+let $MASTER_1_SET_OK_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "$ORACLE_HOST", user "$ORACLE_USER",
+  password "$ORACLE_PASSWORD", msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "$ORACLE_DATABASE", lst "0 1"';
+let $MASTER_1_SET_OK_STATUS_AS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "$ORACLE_HOST", user "$ORACLE_USER",
+  password "$ORACLE_PASSWORD", msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+  database "$ORACLE_DATABASE", lst "1 0"';
+let $MASTER_1_COPY_TABLES_2_1=
+  SELECT spider_copy_tables('ta_l', '0', '1');
+
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT_HA_2_1=
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3",
+    wrapper "oracle"'
+    CONNECTION='host "$ORACLE_HOST", user "$ORACLE_USER",
+    password "$ORACLE_PASSWORD", msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "$ORACLE_DATABASE"';
+  let $MASTER_1_COMMENT_HA_AS_2_1=
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3",
+    wrapper "oracle"'
+    CONNECTION='host "$ORACLE_HOST", user "$ORACLE_USER",
+    password "$ORACLE_PASSWORD", msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "$ORACLE_DATABASE"';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT_HA_2_1=
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3",
+    wrapper "oracle"'
+    CONNECTION='host "$ORACLE_HOST", user "$ORACLE_USER",
+    password "$ORACLE_PASSWORD", msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "$ORACLE_DATABASE"';
+  let $MASTER_1_COMMENT_HA_AS_2_1=
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3",
+    wrapper "oracle"'
+    CONNECTION='host "$ORACLE_HOST", user "$ORACLE_USER",
+    password "$ORACLE_PASSWORD", msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "$ORACLE_DATABASE"';
+}
+let $MASTER_1_COMMENT_HA_P_2_1=
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $MASTER_1_COMMENT_HA_AS_P_2_1=
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $MASTER_1_SET_RECOVERY_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 2"'
+  );
+let $MASTER_1_SET_OK_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 1"'
+  );
+let $MASTER_1_SET_OK_STATUS_AS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "1 0"'
+  );
+let $MASTER_1_COPY_TABLES_P_2_1=
+  SELECT spider_copy_tables('ta_l2#P#pt2', '0', '1');
+let $MASTER_1_CHECK_HA_STATUS=
+  SHOW GLOBAL STATUS LIKE 'Spider_mon_table_cache_version%';
+let $MASTER_1_CHANGE_HA_MON=
+  SELECT spider_flush_table_mon_cache();
diff --git a/storage/spider/mysql-test/spider/oracle/include/hs_deinit_child2_1.inc b/storage/spider/mysql-test/spider/oracle/include/hs_deinit_child2_1.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/hs_deinit_child2_1.inc
diff --git a/storage/spider/mysql-test/spider/oracle/include/hs_deinit_child2_2.inc b/storage/spider/mysql-test/spider/oracle/include/hs_deinit_child2_2.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/hs_deinit_child2_2.inc
diff --git a/storage/spider/mysql-test/spider/oracle/include/hs_deinit_child2_3.inc b/storage/spider/mysql-test/spider/oracle/include/hs_deinit_child2_3.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/hs_deinit_child2_3.inc
diff --git a/storage/spider/mysql-test/spider/oracle/include/hs_deinit_master_1.inc b/storage/spider/mysql-test/spider/oracle/include/hs_deinit_master_1.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/hs_deinit_master_1.inc
diff --git a/storage/spider/mysql-test/spider/oracle/include/hs_init_child2_1.inc b/storage/spider/mysql-test/spider/oracle/include/hs_init_child2_1.inc
new file mode 100644
index 00000000..f3f92a61
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/hs_init_child2_1.inc
@@ -0,0 +1,24 @@
+let $CHILD2_1_HS_DROP_TABLES=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "hs_r"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_HS_CREATE_TABLES=
+  SELECT spider_direct_sql('CREATE TABLE "hs_r" (
+    "a" INT DEFAULT 10,
+    "b" CHAR(1) DEFAULT \'c\',
+    "c" DATE DEFAULT TO_DATE(\'1999-10-10 10:10:10\', \'YYYY-MM-DD HH24:MI:SS\'),
+    "d" INT DEFAULT 11,
+    CONSTRAINT "pk_s_2_1_hs_r" PRIMARY KEY("a")
+  )', '', 'srv "s_2_1"');
+let $CHILD2_1_HS_SELECT_TABLES=
+  SELECT spider_direct_sql('SELECT "a", "b", TO_CHAR("c", \'YYYY-MM-DD HH24:MI:SS\'), "d" FROM "hs_r" ORDER BY "a"', '', 'srv "s_2_1"');
+let $CHILD2_1_HS_DROP_TABLES2=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "hs_r2"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_HS_CREATE_TABLES2=
+  SELECT spider_direct_sql('CREATE TABLE "hs_r2" (
+    "a" INT DEFAULT 10,
+    "b" CHAR(1) DEFAULT \'c\',
+    "c" DATE DEFAULT TO_DATE(\'1999-10-10 10:10:10\', \'YYYY-MM-DD HH24:MI:SS\'),
+    "d" INT DEFAULT 11,
+    CONSTRAINT "pk_s_2_1_hs_r2" PRIMARY KEY("a")
+  )', '', 'srv "s_2_1"');
+let $CHILD2_1_HS_SELECT_TABLES2=
+  SELECT spider_direct_sql('SELECT "a", "b", TO_CHAR("c", \'YYYY-MM-DD HH24:MI:SS\'), "d" FROM "hs_r2" ORDER BY "a"', '', 'srv "s_2_1"');
diff --git a/storage/spider/mysql-test/spider/oracle/include/hs_init_child2_2.inc b/storage/spider/mysql-test/spider/oracle/include/hs_init_child2_2.inc
new file mode 100644
index 00000000..4bd8d49c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/hs_init_child2_2.inc
@@ -0,0 +1,12 @@
+let $CHILD2_2_HS_DROP_TABLES=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "hs_r3"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_2"');
+let $CHILD2_2_HS_CREATE_TABLES=
+  SELECT spider_direct_sql('CREATE TABLE "hs_r3" (
+    "a" INT DEFAULT 10,
+    "b" CHAR(1) DEFAULT \'c\',
+    "c" DATE DEFAULT TO_DATE(\'1999-10-10 10:10:10\', \'YYYY-MM-DD HH24:MI:SS\'),
+    "d" INT DEFAULT 11,
+    CONSTRAINT "pk_s_2_2_hs_r3" PRIMARY KEY("a")
+  )', '', 'srv "s_2_2"');
+let $CHILD2_2_HS_SELECT_TABLES=
+  SELECT spider_direct_sql('SELECT "a", "b", TO_CHAR("c", \'YYYY-MM-DD HH24:MI:SS\'), "d" FROM "hs_r3" ORDER BY "a"', '', 'srv "s_2_2"');
diff --git a/storage/spider/mysql-test/spider/oracle/include/hs_init_child2_3.inc b/storage/spider/mysql-test/spider/oracle/include/hs_init_child2_3.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/hs_init_child2_3.inc
diff --git a/storage/spider/mysql-test/spider/oracle/include/hs_init_master_1.inc b/storage/spider/mysql-test/spider/oracle/include/hs_init_master_1.inc
new file mode 100644
index 00000000..0ff5e2a1
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/hs_init_master_1.inc
@@ -0,0 +1,12 @@
+let $MASTER_1_HS_COMMENT_TMP=
+  COMMENT='';
+let $MASTER_1_HS_COMMENT_2_1=
+  COMMENT='srv "s_2_1", table "hs_r", uhr "1", uhw "1", hrp "$CHILD2_1_HSRPORT", hwp "$CHILD2_1_HSWPORT"';
+let $MASTER_1_HS_COMMENT_P_2_1=
+  COMMENT='uhr "1", uhw "1"'
+  PARTITION BY RANGE(a) (
+    PARTITION pt1 VALUES LESS THAN (4)
+    COMMENT='srv "s_2_1", table "hs_r2", hrp "$CHILD2_1_HSRPORT", hwp "$CHILD2_1_HSWPORT"',
+    PARTITION pt2 VALUES LESS THAN MAXVALUE
+    COMMENT='srv "s_2_2", table "hs_r3", hrp "$CHILD2_2_HSRPORT", hwp "$CHILD2_2_HSWPORT"'
+  );
diff --git a/storage/spider/mysql-test/spider/oracle/include/init_child2_1.inc b/storage/spider/mysql-test/spider/oracle/include/init_child2_1.inc
new file mode 100644
index 00000000..c24736ee
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/init_child2_1.inc
@@ -0,0 +1,192 @@
+--connection master_1
+SELECT spider_direct_sql('ALTER SESSION SET NLS_DATE_FORMAT=\'YYYY-MM-DD HH24:MI:SS\'', '', 'srv "s_2_1"');
+SELECT spider_direct_sql('ALTER SESSION SET NLS_TIME_FORMAT=\'HH24:MI:SSXFF\'', '', 'srv "s_2_1"');
+SELECT spider_direct_sql('ALTER SESSION SET NLS_TIMESTAMP_FORMAT=\'YYYY-MM-DD HH24:MI:SSXFF\'', '', 'srv "s_2_1"');
+let $CHILD2_1_DROP_TABLES=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "ta_r"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_CREATE_TABLES=
+  SELECT spider_direct_sql('CREATE TABLE "ta_r" (
+    "a" INT DEFAULT 10,
+    "b" CHAR(1) DEFAULT \'c\',
+    "c" DATE DEFAULT TO_DATE(\'1999-10-10 10:10:10\', \'YYYY-MM-DD HH24:MI:SS\'),
+    CONSTRAINT "pk_s_2_1_ta_r" PRIMARY KEY("a")
+  )', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE INDEX "idx1" ON "ta_r"("b")', '', 'srv "s_2_1"');
+let $CHILD2_1_SELECT_TABLES=
+  SELECT spider_direct_sql('SELECT "a", "b", TO_CHAR("c", \'YYYY-MM-DD HH24:MI:SS\') FROM "ta_r" ORDER BY "a"', '', 'srv "s_2_1"');
+let $CHILD2_1_DROP_TABLES2=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "ta_r2"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_CREATE_TABLES2=
+  SELECT spider_direct_sql('CREATE TABLE "ta_r2" (
+    "a" INT DEFAULT 10,
+    "b" CHAR(1) DEFAULT \'c\',
+    "c" DATE DEFAULT TO_DATE(\'1999-10-10 10:10:10\', \'YYYY-MM-DD HH24:MI:SS\'),
+    CONSTRAINT "pk_s_2_1_ta_r2" PRIMARY KEY("a")
+  )', '', 'srv "s_2_1"');
+let $CHILD2_1_SELECT_TABLES2=
+  SELECT spider_direct_sql('SELECT "a", "b", TO_CHAR("c", \'YYYY-MM-DD HH24:MI:SS\') FROM "ta_r2" ORDER BY "a"', '', 'srv "s_2_1"');
+let $CHILD2_1_DROP_TABLES3=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "ta_r_no_idx"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_CREATE_TABLES3=
+  SELECT spider_direct_sql('CREATE TABLE "ta_r_no_idx" (
+    "a" INT DEFAULT 10,
+    "b" CHAR(1) DEFAULT \'c\',
+    "c" DATE DEFAULT TO_DATE(\'1999-10-10 10:10:10\', \'YYYY-MM-DD HH24:MI:SS\')
+  )', '', 'srv "s_2_1"');
+let $CHILD2_1_SELECT_TABLES3=
+  SELECT spider_direct_sql('SELECT "a", "b", TO_CHAR("c", \'YYYY-MM-DD HH24:MI:SS\') FROM "ta_r_no_idx" ORDER BY "a"', '', 'srv "s_2_1"');
+let $CHILD2_1_DROP_TABLES4=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "ta_r_auto_inc"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_CREATE_TABLES4=
+  SELECT spider_direct_sql('CREATE TABLE "ta_r_auto_inc" (
+    "a" INT DEFAULT 10,
+    "b" CHAR(1) DEFAULT \'c\',
+    "c" DATE DEFAULT TO_DATE(\'1999-10-10 10:10:10\', \'YYYY-MM-DD HH24:MI:SS\'),
+    CONSTRAINT "pk_s_2_1_ta_r_auto_inc" PRIMARY KEY("a")
+  )', '', 'srv "s_2_1"');
+let $CHILD2_1_SELECT_TABLES4=
+  SELECT spider_direct_sql('SELECT "a", "b", TO_CHAR("c", \'YYYY-MM-DD HH24:MI:SS\') FROM "ta_r_auto_inc"
+  ORDER BY "a"', '', 'srv "s_2_1"');
+let $CHILD2_1_DROP_TABLES5=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "s_2_1_ta_r_int"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_CREATE_TABLES5=
+  SELECT spider_direct_sql('CREATE TABLE "s_2_1_ta_r_int" (
+    "a" INT DEFAULT 3,
+    "b" INT DEFAULT 10,
+    "c" INT DEFAULT 11,
+    CONSTRAINT "pk_s_2_1_ta_r_int" PRIMARY KEY("a")
+  )', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE INDEX "idx1_s_2_1_ta_r_int" ON "s_2_1_ta_r_int"("b")', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE INDEX "idx2_s_2_1_ta_r_int" ON "s_2_1_ta_r_int"("c")', '', 'srv "s_2_1"');
+let $CHILD2_1_SELECT_TABLES5=
+  SELECT spider_direct_sql('SELECT "a", "b", "c" FROM "s_2_1_ta_r_int" ORDER BY "a"', '', 'srv "s_2_1"');
+let $CHILD2_1_DROP_TABLES6=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "ta_r_3"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_CREATE_TABLES6=
+  SELECT spider_direct_sql('CREATE TABLE "ta_r_3" (
+    "a" INT DEFAULT 10,
+    "b" CHAR(1) DEFAULT \'c\',
+    "c" DATE DEFAULT TO_DATE(\'1999-10-10 10:10:10\', \'YYYY-MM-DD HH24:MI:SS\')
+  )', '', 'srv "s_2_1"');
+let $CHILD2_1_SELECT_TABLES6=
+  SELECT spider_direct_sql('SELECT "a", "b", TO_CHAR("c", \'YYYY-MM-DD HH24:MI:SS\') FROM "ta_r_3" ORDER BY "a"', '', 'srv "s_2_1"');
+let $CHILD2_1_DROP_FT_TABLES=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "ft_r"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_CREATE_FT_TABLES=
+  SELECT spider_direct_sql('CREATE TABLE "ft_r" (
+    "a" INT DEFAULT 0,
+    "b" TEXT,
+    "c" TEXT,
+    "d" TEXT,
+    CONSTRAINT "pk_s_2_1_ft_r" PRIMARY KEY("a"),
+    FULLTEXT INDEX "ft_idx1"("b"),
+    FULLTEXT INDEX "ft_idx2"("c")
+  )', '', 'srv "s_2_1"');
+let $CHILD2_1_SELECT_FT_TABLES=
+  SELECT spider_direct_sql('SELECT "a", "b", "c", "d" FROM "ft_r" ORDER BY "a"', '', 'srv "s_2_1"');
+let $CHILD2_1_DROP_FT_TABLES2=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "ft_r2"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_CREATE_FT_TABLES2=
+  SELECT spider_direct_sql('CREATE TABLE "ft_r2" (
+    "a" INT DEFAULT 0,
+    "b" TEXT,
+    "c" TEXT,
+    "d" TEXT,
+    CONSTRAINT "pk_s_2_1_ft_r2" PRIMARY KEY("a"),
+    FULLTEXT INDEX "ft_idx1"("b"),
+    FULLTEXT INDEX "ft_idx2"("c")
+  )', '', 'srv "s_2_1"');
+let $CHILD2_1_SELECT_FT_TABLES2=
+  SELECT spider_direct_sql('SELECT "a", "b", "c", "d" FROM "ft_r2" ORDER BY "a"', '', 'srv "s_2_1"');
+let $CHILD2_1_DROP_GM_TABLES=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "gm_r"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_CREATE_GM_TABLES=
+  SELECT spider_direct_sql('CREATE TABLE "gm_r" (
+    "a" INT DEFAULT 0,
+    "b" GEOMETRY NOT NULL,
+    "c" GEOMETRY NOT NULL,
+    CONSTRAINT "pk_s_2_1_gm_r" PRIMARY KEY("a"),
+    SPATIAL INDEX "sp_idx1"("b"),
+    SPATIAL INDEX "sp_idx2"("c")
+  )', '', 'srv "s_2_1"');
+let $CHILD2_1_SELECT_GM_TABLES=
+  SELECT spider_direct_sql('SELECT "a", "b", "c" FROM "gm_r" ORDER BY "a"', '', 'srv "s_2_1"');
+let $CHILD2_1_DROP_GM_TABLES2=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "gm_r2"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_CREATE_GM_TABLES2=
+  SELECT spider_direct_sql('CREATE TABLE "gm_r2" (
+    "a" INT DEFAULT 0,
+    "b" GEOMETRY NOT NULL,
+    "c" GEOMETRY NOT NULL,
+    CONSTRAINT "pk_s_2_1_gm_r2" PRIMARY KEY("a"),
+    SPATIAL INDEX "sp_idx1"("b"),
+    SPATIAL INDEX "sp_idx2"("c")
+  )', '', 'srv "s_2_1"');
+let $CHILD2_1_SELECT_GM_TABLES2=
+  SELECT spider_direct_sql('SELECT "a", "b", "c" FROM "gm_r2" ORDER BY "a"', '', 'srv "s_2_1"');
+let $CHILD2_1_DROP_LOCK_TABLES1=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "t1_1"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_CREATE_LOCK_TABLES1=
+  SELECT spider_direct_sql('CREATE TABLE "t1_1" (
+    "id" INT NOT NULL,
+    CONSTRAINT "pk_s_2_1_t1_1" PRIMARY KEY ("id")
+  )', '', 'srv "s_2_1"');
+let $CHILD2_1_DROP_LOCK_TABLES2=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "t2_2"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_CREATE_LOCK_TABLES2=
+  SELECT spider_direct_sql('CREATE TABLE "t2_2" (
+    "id" INT NOT NULL,
+    CONSTRAINT "pk_s_2_1_t2_2" PRIMARY KEY ("id")
+  )', '', 'srv "s_2_1"');
+let $CHILD2_1_DROP_INCREMENT_TABLES1=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "t1_1"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_CREATE_INCREMENT_TABLES1=
+  SELECT spider_direct_sql('CREATE TABLE "t1_1" (
+    "id" INT NOT NULL,
+    CONSTRAINT "pk_s_2_1_t1_1" PRIMARY KEY ("id")
+  )', '', 'srv "s_2_1"');
+let $CHILD2_1_SELECT_INCREMENT_TABLES1=
+  SELECT spider_direct_sql('SELECT "id" FROM "t1_1" ORDER BY "id"', '', 'srv "s_2_1"');
+let $CHILD2_1_DROP_TEXT_PK_TABLES1=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "t1"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_CREATE_TEXT_PK_TABLES1=
+  SELECT spider_direct_sql('CREATE TABLE "t1" (
+    "a" VARCHAR(255),
+    CONSTRAINT "pk_s_2_1_t1" PRIMARY KEY ("a")
+  )', '', 'srv "s_2_1"');
+let $CHILD2_1_SELECT_TEXT_PK_TABLES1=
+  SELECT spider_direct_sql('SELECT "a" FROM "t1" ORDER BY "a"', '', 'srv "s_2_1"');
+let $CHILD2_1_DROP_TEXT_KEY_TABLES1=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "t1"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_CREATE_TEXT_KEY_TABLES1=
+  SELECT spider_direct_sql('CREATE TABLE "t1" (
+    "a" VARCHAR(255),
+    "b" VARCHAR(255),
+    "c" VARCHAR(255),
+    CONSTRAINT "pk_s_2_1_t1" PRIMARY KEY ("c")
+  )', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE INDEX "idx1_t1" ON "t1"("a","b")', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE INDEX "idx2_t1" ON "t1"("b")', '', 'srv "s_2_1"');
+let $CHILD2_1_SELECT_TEXT_KEY_TABLES1=
+  SELECT spider_direct_sql('SELECT "a", "b", "c" FROM "t1" ORDER BY "c"', '', 'srv "s_2_1"');
+let $CHILD2_1_AUTO_INCREMENT_INCREMENT1=
+  SELECT spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_1"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE SEQUENCE "seq_t1_1" START WITH 1 INCREMENT BY 1', '', 'srv "s_2_1"');
+let $CHILD2_1_AUTO_INCREMENT_INCREMENT2=
+  SELECT spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_1"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE SEQUENCE "seq_t1_1" START WITH 2 INCREMENT BY 4', '', 'srv "s_2_1"');
+let $CHILD2_1_AUTO_INCREMENT_OFFSET1=
+  SELECT spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_1"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE SEQUENCE "seq_t1_1" START WITH 1 INCREMENT BY 1', '', 'srv "s_2_1"');
+let $CHILD2_1_AUTO_INCREMENT_OFFSET2=
+  SELECT spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_1"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE SEQUENCE "seq_t1_1" START WITH 2 INCREMENT BY 4', '', 'srv "s_2_1"');
diff --git a/storage/spider/mysql-test/spider/oracle/include/init_child2_2.inc b/storage/spider/mysql-test/spider/oracle/include/init_child2_2.inc
new file mode 100644
index 00000000..fd4497c0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/init_child2_2.inc
@@ -0,0 +1,94 @@
+--connection master_1
+SELECT spider_direct_sql('ALTER SESSION SET NLS_DATE_FORMAT=\'YYYY-MM-DD HH24:MI:SS\'', '', 'srv "s_2_2"');
+SELECT spider_direct_sql('ALTER SESSION SET NLS_TIME_FORMAT=\'HH24:MI:SSXFF\'', '', 'srv "s_2_2"');
+SELECT spider_direct_sql('ALTER SESSION SET NLS_TIMESTAMP_FORMAT=\'YYYY-MM-DD HH24:MI:SSXFF\'', '', 'srv "s_2_2"');
+let $CHILD2_2_DROP_TABLES=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "ta_r3"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_2"');
+let $CHILD2_2_CREATE_TABLES=
+  SELECT spider_direct_sql('CREATE TABLE "ta_r3" (
+    "a" INT DEFAULT 10,
+    "b" CHAR(1) DEFAULT \'c\',
+    "c" DATE DEFAULT TO_DATE(\'1999-10-10 10:10:10\', \'YYYY-MM-DD HH24:MI:SS\'),
+    CONSTRAINT "pk_s_2_2_ta_r3" PRIMARY KEY("a")
+  )', '', 'srv "s_2_2"');
+let $CHILD2_2_DROP_TABLES5=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "s_2_2_ta_r_int"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_2"');
+let $CHILD2_2_CREATE_TABLES5=
+  SELECT spider_direct_sql('CREATE TABLE "s_2_2_ta_r_int" (
+    "a" INT DEFAULT 3,
+    "b" INT DEFAULT 10,
+    "c" INT DEFAULT 11,
+    CONSTRAINT "pk_s_2_2_ta_r_int" PRIMARY KEY("a")
+  )', '', 'srv "s_2_2"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE INDEX "idx1_s_2_2_ta_r_int" ON "s_2_2_ta_r_int"("b")', '', 'srv "s_2_2"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE INDEX "idx2_s_2_2_ta_r_int" ON "s_2_2_ta_r_int"("c")', '', 'srv "s_2_2"');
+let $CHILD2_2_SELECT_TABLES=
+  SELECT spider_direct_sql('SELECT "a", "b", TO_CHAR("c", \'YYYY-MM-DD HH24:MI:SS\') FROM "ta_r3" ORDER BY "a"', '', 'srv "s_2_2"');
+let $CHILD2_2_DROP_FT_TABLES=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "ft_r3"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_2"');
+let $CHILD2_2_CREATE_FT_TABLES=
+  SELECT spider_direct_sql('CREATE TABLE "ft_r3" (
+    "a" INT DEFAULT 0,
+    "b" TEXT,
+    "c" TEXT,
+    "d" TEXT,
+    CONSTRAINT "pk_s_2_2_ft_r3" PRIMARY KEY("a"),
+    FULLTEXT INDEX "ft_idx1"("b"),
+    FULLTEXT INDEX "ft_idx2"("c")
+  )', '', 'srv "s_2_2"');
+let $CHILD2_2_SELECT_FT_TABLES=
+  SELECT spider_direct_sql('SELECT "a", "b", "c", "d" FROM "ft_r3" ORDER BY "a"', '', 'srv "s_2_2"');
+let $CHILD2_2_DROP_GM_TABLES=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "gm_r3"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_2"');
+let $CHILD2_2_CREATE_GM_TABLES=
+  SELECT spider_direct_sql('CREATE TABLE "gm_r3" (
+    "a" INT DEFAULT 0,
+    "b" GEOMETRY NOT NULL,
+    "c" GEOMETRY NOT NULL,
+    CONSTRAINT "pk_s_2_2_gm_r3" PRIMARY KEY("a"),
+    SPATIAL INDEX "sp_idx1"("b"),
+    SPATIAL INDEX "sp_idx2"("c")
+  )', '', 'srv "s_2_2"');
+let $CHILD2_2_SELECT_GM_TABLES=
+  SELECT spider_direct_sql('SELECT "a", "b", "c" FROM "gm_r3" ORDER BY "a"', '', 'srv "s_2_2"');
+let $CHILD2_2_DROP_LOCK_TABLES1=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "t1_2"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_2"');
+let $CHILD2_2_CREATE_LOCK_TABLES1=
+  SELECT spider_direct_sql('CREATE TABLE "t1_2" (
+    "id" INT NOT NULL,
+    CONSTRAINT "pk_s_2_2_t1_2" PRIMARY KEY ("id")
+  )', '', 'srv "s_2_2"');
+let $CHILD2_2_DROP_LOCK_TABLES2=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "t2_1"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_2"');
+let $CHILD2_2_CREATE_LOCK_TABLES2=
+  SELECT spider_direct_sql('CREATE TABLE "t2_1" (
+    "id" INT NOT NULL,
+    CONSTRAINT "pk_s_2_2_t2_1" PRIMARY KEY ("id")
+  )', '', 'srv "s_2_2"');
+let $CHILD2_2_DROP_INCREMENT_TABLES1=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "t1_2"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_2"');
+let $CHILD2_2_CREATE_INCREMENT_TABLES1=
+  SELECT spider_direct_sql('CREATE TABLE "t1_2" (
+    "id" INT NOT NULL,
+    CONSTRAINT "pk_s_2_2_t1_2" PRIMARY KEY ("id")
+  )', '', 'srv "s_2_2"');
+let $CHILD2_2_SELECT_INCREMENT_TABLES1=
+  SELECT spider_direct_sql('SELECT "id" FROM "t1_2" ORDER BY "id"', '', 'srv "s_2_2"');
+let $CHILD2_2_AUTO_INCREMENT_INCREMENT1=
+  SELECT spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_2"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_2"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE SEQUENCE "seq_t1_2" START WITH 1 INCREMENT BY 1', '', 'srv "s_2_2"');
+let $CHILD2_2_AUTO_INCREMENT_INCREMENT2=
+  SELECT spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_2"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_2"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE SEQUENCE "seq_t1_2" START WITH 3 INCREMENT BY 4', '', 'srv "s_2_2"');
+let $CHILD2_2_AUTO_INCREMENT_OFFSET1=
+  SELECT spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_2"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_2"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE SEQUENCE "seq_t1_2" START WITH 1 INCREMENT BY 1', '', 'srv "s_2_2"');
+let $CHILD2_2_AUTO_INCREMENT_OFFSET2=
+  SELECT spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_2"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_2"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE SEQUENCE "seq_t1_2" START WITH 3 INCREMENT BY 4', '', 'srv "s_2_2"');
diff --git a/storage/spider/mysql-test/spider/oracle/include/init_child2_3.inc b/storage/spider/mysql-test/spider/oracle/include/init_child2_3.inc
new file mode 100644
index 00000000..e16dfeff
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/init_child2_3.inc
@@ -0,0 +1,15 @@
+--connection master_1
+SELECT spider_direct_sql('ALTER SESSION SET NLS_DATE_FORMAT=\'YYYY-MM-DD HH24:MI:SS\'', '', 'srv "s_2_3"');
+SELECT spider_direct_sql('ALTER SESSION SET NLS_TIME_FORMAT=\'HH24:MI:SSXFF\'', '', 'srv "s_2_3"');
+SELECT spider_direct_sql('ALTER SESSION SET NLS_TIMESTAMP_FORMAT=\'YYYY-MM-DD HH24:MI:SSXFF\'', '', 'srv "s_2_3"');
+let $CHILD2_3_DROP_TABLES=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "ta_r4"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_3"');
+let $CHILD2_3_CREATE_TABLES=
+  SELECT spider_direct_sql('CREATE TABLE "ta_r4" (
+    "a" INT DEFAULT 10,
+    "b" CHAR(1) DEFAULT \'c\',
+    "c" DATE DEFAULT TO_DATE(\'1999-10-10 10:10:10\', \'YYYY-MM-DD HH24:MI:SS\'),
+    CONSTRAINT "pk_s_2_3_ta_r4" PRIMARY KEY("a")
+  )', '', 'srv "s_2_3"');
+let $CHILD2_3_SELECT_TABLES=
+  SELECT spider_direct_sql('SELECT "a", "b", TO_CHAR("c", \'YYYY-MM-DD HH24:MI:SS\') FROM "ta_r4" ORDER BY "a"', '', 'srv "s_2_3"');
diff --git a/storage/spider/mysql-test/spider/oracle/include/init_child3_1.inc b/storage/spider/mysql-test/spider/oracle/include/init_child3_1.inc
new file mode 100644
index 00000000..d2d308cb
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/init_child3_1.inc
@@ -0,0 +1,3 @@
+--let $TEST_ENGINE_TYPE= $CHILD3_1_ENGINE_TYPE
+--source ../../include/init_engine.inc
+--let $INIT_CHILD3_1_ENGINE= $INIT_TEST_ENGINE
diff --git a/storage/spider/mysql-test/spider/oracle/include/init_child3_2.inc b/storage/spider/mysql-test/spider/oracle/include/init_child3_2.inc
new file mode 100644
index 00000000..3fbe1bd5
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/init_child3_2.inc
@@ -0,0 +1,3 @@
+--let $TEST_ENGINE_TYPE= $CHILD3_2_ENGINE_TYPE
+--source ../../include/init_engine.inc
+--let $INIT_CHILD3_2_ENGINE= $INIT_TEST_ENGINE
diff --git a/storage/spider/mysql-test/spider/oracle/include/init_child3_3.inc b/storage/spider/mysql-test/spider/oracle/include/init_child3_3.inc
new file mode 100644
index 00000000..3c7aaa8a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/init_child3_3.inc
@@ -0,0 +1,3 @@
+--let $TEST_ENGINE_TYPE= $CHILD3_3_ENGINE_TYPE
+--source ../../include/init_engine.inc
+--let $INIT_CHILD3_3_ENGINE= $INIT_TEST_ENGINE
diff --git a/storage/spider/mysql-test/spider/oracle/include/init_master_1.inc b/storage/spider/mysql-test/spider/oracle/include/init_master_1.inc
new file mode 100644
index 00000000..8e79b984
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/init_master_1.inc
@@ -0,0 +1,149 @@
+--source ../include/init_spider.inc
+SET spider_direct_order_limit= 10000;
+SET spider_init_sql_alloc_size= 1;
+SET spider_conn_recycle_mode= 2;
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='database "$ORACLE_DATABASE", table "ta_r", wrapper "oracle",
+  pk_name "pk_s_2_1_ta_r"'
+  CONNECTION='host "$ORACLE_HOST", port "$ORACLE_PORT", user "$ORACLE_USER",
+  password "$ORACLE_PASSWORD"';
+let $MASTER_1_COMMENT2_2_1=
+  COMMENT='database "$ORACLE_DATABASE", table "ta_r_no_idx", wrapper "oracle",
+  pk_name "pk_s_2_1_ta_r_no_idx"'
+  CONNECTION='host "$ORACLE_HOST", port "$ORACLE_PORT", user "$ORACLE_USER",
+  password "$ORACLE_PASSWORD", prt "2000000"';
+let $MASTER_1_COMMENT_P_2_1=
+  COMMENT='table "ta_r3"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1", table "ta_r2",
+    priority "1000", pk_name "pk_s_2_1_ta_r2"',
+    PARTITION pt2 COMMENT='srv "s_2_2", priority "1000001",
+    pk_name "pk_s_2_2_ta_r3"'
+  );
+let $MASTER_1_COMMENT2_P_2_1=
+  COMMENT='table "ta_r3"'
+  PARTITION BY RANGE(a) (
+    PARTITION pt1 VALUES LESS THAN (4) COMMENT='srv "s_2_1",
+    table "ta_r2", priority "1000", pk_name "pk_s_2_1_ta_r2"',
+    PARTITION pt2 VALUES LESS THAN MAXVALUE
+    COMMENT='srv "s_2_2", priority "1000001", pk_name "pk_s_2_2_ta_r3"'
+  );
+let $MASTER_1_COMMENT3_2_1=
+  COMMENT='database "$ORACLE_DATABASE", table "ta_r_auto_inc",
+  wrapper "oracle"'
+  CONNECTION='host "$ORACLE_HOST", port "$ORACLE_PORT", user "$ORACLE_USER",
+  password "$ORACLE_PASSWORD", pk_name "pk_s_2_1_ta_r_auto_inc"';
+let $MASTER_1_COMMENT3_P_2_1=
+  COMMENT='table "s_2_1_ta_r_int"'
+  PARTITION BY LIST(MOD(a, 2)) (
+    PARTITION pt1 VALUES IN (0)
+    COMMENT='srv "s_2_1", priority "1000", pk_name "pk_s_2_1_ta_r_int"',
+    PARTITION pt2 VALUES IN (1)
+    COMMENT='srv "s_2_2", priority "1000001", pk_name "pk_s_2_2_ta_r_int",
+    table "s_2_2_ta_r_int"'
+  );
+let $MASTER_1_COMMENT4_2_1=
+  COMMENT='database "$ORACLE_DATABASE", table "s_2_1_ta_r_int",
+  wrapper "oracle"'
+  CONNECTION='host "$ORACLE_HOST", port "$ORACLE_PORT", user "$ORACLE_USER",
+  password "$ORACLE_PASSWORD", pk_name "pk_s_2_1_ta_r_int"';
+let $MASTER_1_COMMENT5_2_1=
+  COMMENT='database "$ORACLE_DATABASE", table "ta_r_3", wrapper "oracle"'
+  CONNECTION='host "$ORACLE_HOST", port "$ORACLE_PORT", user "$ORACLE_USER",
+  password "$ORACLE_PASSWORD", pk_name "pk_s_2_1_ta_r_3"';
+let $MASTER_1_COMMENT_FT_2_1=
+  COMMENT='database "$ORACLE_DATABASE", table "ft_r", wrapper "oracle"'
+  CONNECTION='host "$ORACLE_HOST", port "$ORACLE_PORT", user "$ORACLE_USER",
+  password "$ORACLE_PASSWORD", pk_name "pk_s_2_1_ft_r"';
+let $MASTER_1_COMMENT2_FT_P_2_1=
+  COMMENT='table "ft_r3"'
+  PARTITION BY RANGE(a) (
+    PARTITION pt1 VALUES LESS THAN (4) COMMENT='srv "s_2_1",
+    table "ft_r2", priority "1000", pk_name "pk_s_2_1_ft_r2"',
+    PARTITION pt2 VALUES LESS THAN MAXVALUE
+    COMMENT='srv "s_2_2", priority "1000001", pk_name "pk_s_2_2_ft_r3"'
+  );
+let $MASTER_1_COMMENT_GM_2_1=
+  COMMENT='srv "s_2_1", table "gm_r", pk_name "pk_s_2_1_gm_r"';
+let $MASTER_1_COMMENT2_GM_P_2_1=
+  COMMENT='table "gm_r3"'
+  PARTITION BY RANGE(a) (
+    PARTITION pt1 VALUES LESS THAN (4) COMMENT='srv "s_2_1",
+    table "gm_r2", priority "1000", pk_name "pk_s_2_1_gm_r2"',
+    PARTITION pt2 VALUES LESS THAN MAXVALUE
+    COMMENT='srv "s_2_2", priority "1000001", pk_name "pk_s_2_2_gm_r3"'
+  );
+let $MASTER_1_COMMENT_LOCK1=
+  COMMENT 'tbl "t1_1 t1_2", srv "s_2_1 s_2_2",
+  pk_name "pk_s_2_1_t1_1 pk_s_2_2_t1_2"';
+let $MASTER_1_COMMENT_LOCK2=
+  COMMENT 'tbl "t2_1 t2_2", srv "s_2_2 s_2_1",
+  pk_name "pk_s_2_2_t2_1 pk_s_2_1_t2_2"';
+let $MASTER_1_COMMENT_INCREMENT1_1=
+  COMMENT 'aim "0", tbl "t1_1", srv "s_2_1", pk_name "pk_s_2_1_t1_1"';
+let $MASTER_1_COMMENT_INCREMENT1_P_1=
+  COMMENT 'aim "0"'
+  PARTITION BY LIST(MOD(id, 2)) (
+    PARTITION pt1 VALUES IN (0)
+    COMMENT='tbl "t1_1", srv "s_2_1", pk_name "pk_s_2_1_t1_1"',
+    PARTITION pt2 VALUES IN (1)
+    COMMENT='tbl "t1_2", srv "s_2_2", pk_name "pk_s_2_2_t1_2"'
+  );
+let $MASTER_1_COMMENT_READONLY1_1=
+  COMMENT 'read_only_mode "1", tbl "t1_1", srv "s_2_1",
+  pk_name "pk_s_2_1_t1_1"';
+let $MASTER_1_COMMENT_ERROR_MODE1_1=
+  COMMENT 'erm "1", ewm "1", tbl "ter1_1", srv "s_2_1",
+  pk_name "pk_s_2_1_ter1_1"';
+let $MASTER_1_COMMENT_TEXT_PK1_1=
+  COMMENT 'tbl "t1", srv "s_2_1", pk_name "pk_s_2_1_t1"';
+let $MASTER_1_COMMENT_TEXT_KEY1_1=
+  COMMENT 'tbl "t1", srv "s_2_1", pk_name "pk_s_2_1_t1"';
+let $MASTER_1_CHECK_DIRECT_UPDATE_STATUS=
+  SHOW GLOBAL STATUS LIKE 'Spider_direct_update%';
+let $MASTER_1_CHECK_DIRECT_DELETE_STATUS=
+  SHOW GLOBAL STATUS LIKE 'Spider_direct_delete%';
+let $MASTER_1_CHECK_DIRECT_ORDER_LIMIT_STATUS=
+  SHOW GLOBAL STATUS LIKE 'Spider_direct_order_limit%';
+let $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS=
+  SHOW GLOBAL STATUS LIKE 'Spider_direct_aggregate%';
+let $MASTER_1_AUTO_INCREMENT_INCREMENT1=
+  SET SESSION AUTO_INCREMENT_INCREMENT = 1 $STR_SEMICOLON
+  SELECT spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_1"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE SEQUENCE "seq_t1_1" START WITH 1 INCREMENT BY 1', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_2"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_2"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE SEQUENCE "seq_t1_2" START WITH 1 INCREMENT BY 1', '', 'srv "s_2_2"');
+let $MASTER_1_AUTO_INCREMENT_INCREMENT2=
+  SET SESSION AUTO_INCREMENT_INCREMENT = 777 $STR_SEMICOLON
+  SELECT spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_1"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE SEQUENCE "seq_t1_1" START WITH 2 INCREMENT BY 4', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_2"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_2"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE SEQUENCE "seq_t1_2" START WITH 3 INCREMENT BY 4', '', 'srv "s_2_2"');
+let $MASTER_1_AUTO_INCREMENT_OFFSET1=
+  SET SESSION AUTO_INCREMENT_OFFSET = 1 $STR_SEMICOLON
+  SELECT spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_1"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE SEQUENCE "seq_t1_1" START WITH 1 INCREMENT BY 1', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_2"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_2"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE SEQUENCE "seq_t1_2" START WITH 1 INCREMENT BY 1', '', 'srv "s_2_2"');
+let $MASTER_1_AUTO_INCREMENT_OFFSET2=
+  SET SESSION AUTO_INCREMENT_OFFSET = 777 $STR_SEMICOLON
+  SELECT spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_1"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE SEQUENCE "seq_t1_1" START WITH 2 INCREMENT BY 4', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_2"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_2"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE SEQUENCE "seq_t1_2" START WITH 3 INCREMENT BY 4', '', 'srv "s_2_2"');
+let $MASTER_1_AUTO_INCREMENT_OFFSET3=
+  SET SESSION AUTO_INCREMENT_OFFSET = 1;
+let $MASTER_1_AUTO_INCREMENT_OFFSET4=
+  SET SESSION AUTO_INCREMENT_OFFSET = 777;
diff --git a/storage/spider/mysql-test/spider/oracle/include/init_slave1_1.inc b/storage/spider/mysql-test/spider/oracle/include/init_slave1_1.inc
new file mode 100644
index 00000000..73c3c6b9
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/init_slave1_1.inc
@@ -0,0 +1,10 @@
+let $SLAVE1_1_COMMENT_INCREMENT1_1=
+  COMMENT '';
+let $SLAVE1_1_COMMENT_INCREMENT1_P_1=
+  COMMENT ''
+  PARTITION BY LIST(MOD(id, 2)) (
+    PARTITION pt1 VALUES IN (0)
+    COMMENT='',
+    PARTITION pt2 VALUES IN (1)
+    COMMENT=''
+  );
diff --git a/storage/spider/mysql-test/spider/oracle/include/init_spider.inc b/storage/spider/mysql-test/spider/oracle/include/init_spider.inc
new file mode 100644
index 00000000..ff9ac9ae
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/include/init_spider.inc
@@ -0,0 +1,105 @@
+--source ../../include/init_spider.inc
+let $VERSION_COMPILE_OS_WIN=
+  `SELECT IF(@@version_compile_os like 'Win%', 1, 0)`;
+if ($VERSION_COMPILE_OS_WIN)
+{
+  eval DROP SERVER s_2_1;
+  eval CREATE SERVER s_2_1 FOREIGN DATA WRAPPER oracle OPTIONS (
+    HOST '$ORACLE_HOST',
+    DATABASE '$ORACLE_DATABASE',
+    USER '$ORACLE_USER',
+    PASSWORD '$ORACLE_PASSWORD',
+    PORT $ORACLE_PORT
+  );
+  eval DROP SERVER s_2_2;
+  eval CREATE SERVER s_2_2 FOREIGN DATA WRAPPER oracle OPTIONS (
+    HOST '$ORACLE_HOST',
+    DATABASE '$ORACLE_DATABASE',
+    USER '$ORACLE_USER',
+    PASSWORD '$ORACLE_PASSWORD',
+    PORT $ORACLE_PORT
+  );
+  eval DROP SERVER s_2_3;
+  eval CREATE SERVER s_2_3 FOREIGN DATA WRAPPER oracle OPTIONS (
+    HOST '$ORACLE_HOST',
+    DATABASE '$ORACLE_DATABASE',
+    USER '$ORACLE_USER',
+    PASSWORD '$ORACLE_PASSWORD',
+    PORT $ORACLE_PORT
+  );
+  eval DROP SERVER s_3_1;
+  eval CREATE SERVER s_3_1 FOREIGN DATA WRAPPER mysql OPTIONS (
+    HOST 'localhost',
+    DATABASE 'auto_test_local',
+    USER 'root',
+    PASSWORD '',
+    PORT $CHILD3_1_MYPORT
+  );
+  eval DROP SERVER s_3_2;
+  eval CREATE SERVER s_3_2 FOREIGN DATA WRAPPER mysql OPTIONS (
+    HOST 'localhost',
+    DATABASE 'auto_test_local',
+    USER 'root',
+    PASSWORD '',
+    PORT $CHILD3_2_MYPORT
+  );
+  eval DROP SERVER s_3_3;
+  eval CREATE SERVER s_3_3 FOREIGN DATA WRAPPER mysql OPTIONS (
+    HOST 'localhost',
+    DATABASE 'auto_test_local',
+    USER 'root',
+    PASSWORD '',
+    PORT $CHILD2_3_MYPORT
+  );
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  eval DROP SERVER s_2_1;
+  eval CREATE SERVER s_2_1 FOREIGN DATA WRAPPER oracle OPTIONS (
+    HOST '$ORACLE_HOST',
+    DATABASE '$ORACLE_DATABASE',
+    USER '$ORACLE_USER',
+    PASSWORD '$ORACLE_PASSWORD',
+    PORT $ORACLE_PORT
+  );
+  eval DROP SERVER s_2_2;
+  eval CREATE SERVER s_2_2 FOREIGN DATA WRAPPER oracle OPTIONS (
+    HOST '$ORACLE_HOST',
+    DATABASE '$ORACLE_DATABASE',
+    USER '$ORACLE_USER',
+    PASSWORD '$ORACLE_PASSWORD',
+    PORT $ORACLE_PORT
+  );
+  eval DROP SERVER s_2_3;
+  eval CREATE SERVER s_2_3 FOREIGN DATA WRAPPER oracle OPTIONS (
+    HOST '$ORACLE_HOST',
+    DATABASE '$ORACLE_DATABASE',
+    USER '$ORACLE_USER',
+    PASSWORD '$ORACLE_PASSWORD',
+    PORT $ORACLE_PORT
+  );
+  eval DROP SERVER s_3_1;
+  eval CREATE SERVER s_3_1 FOREIGN DATA WRAPPER mysql OPTIONS (
+    HOST 'localhost',
+    DATABASE 'auto_test_local',
+    USER 'root',
+    PASSWORD '',
+    SOCKET '$CHILD3_1_MYSOCK'
+  );
+  eval DROP SERVER s_3_2;
+  eval CREATE SERVER s_3_2 FOREIGN DATA WRAPPER mysql OPTIONS (
+    HOST 'localhost',
+    DATABASE 'auto_test_local',
+    USER 'root',
+    PASSWORD '',
+    SOCKET '$CHILD3_2_MYSOCK'
+  );
+  eval DROP SERVER s_3_3;
+  eval CREATE SERVER s_3_3 FOREIGN DATA WRAPPER mysql OPTIONS (
+    HOST 'localhost',
+    DATABASE 'auto_test_local',
+    USER 'root',
+    PASSWORD '',
+    SOCKET '$CHILD3_3_MYSOCK'
+  );
+}
diff --git a/storage/spider/mysql-test/spider/oracle/my.cnf b/storage/spider/mysql-test/spider/oracle/my.cnf
new file mode 100644
index 00000000..efa05c8e
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/my.cnf
@@ -0,0 +1,146 @@
+# Use default setting for mysqld processes
+!include include/default_mysqld.cnf
+
+[mysqld.1.1]
+log-bin=                  master-bin
+loose_handlersocket_port=                20000
+loose_handlersocket_port_wr=             20001
+loose_handlersocket_threads=             2
+loose_handlersocket_threads_wr=          1
+loose_handlersocket_support_merge_table= 0
+loose_handlersocket_direct_update_mode=  2
+loose_handlersocket_unlimited_boundary=  65536
+loose_handlersocket_bulk_insert=         0
+loose_handlersocket_bulk_insert_timeout= 0
+loose_handlersocket_general_log=         1
+loose_handlersocket_timeout=             30
+loose_handlersocket_close_table_interval=2
+open_files_limit=                        4096
+loose_partition=                         1
+
+[mysqld.3.1]
+loose_partition=                         1
+
+[mysqld.3.2]
+loose_partition=                         1
+
+[mysqld.3.3]
+loose_partition=                         1
+
+[mysqld.4.1]
+loose_partition=                         1
+
+
+[ENV]
+USE_GEOMETRY_TEST=        0
+USE_FULLTEXT_TEST=        0
+USE_HA_TEST=              1
+USE_GENERAL_LOG=          1
+USE_REPLICATION=          0
+MASTER_1_MYPORT=          @mysqld.1.1.port
+MASTER_1_HSRPORT=         20000
+MASTER_1_HSWPORT=         20001
+MASTER_1_MYSOCK=          @mysqld.1.1.socket
+MASTER_1_ENGINE_TYPE=     Spider
+#MASTER_1_ENGINE_TYPE=     MyISAM
+MASTER_1_ENGINE=          ENGINE=Spider
+MASTER_1_CHARSET=         DEFAULT CHARSET=utf8
+MASTER_1_ENGINE2=         ENGINE=MyISAM
+MASTER_1_CHARSET2=        DEFAULT CHARSET=utf8
+MASTER_1_CHARSET3=        DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci
+SLAVE1_1_MYPORT=          @mysqld.4.1.port
+SLAVE1_1_MYSOCK=          @mysqld.4.1.socket
+SLAVE1_1_ENGINE_TYPE=     MyISAM
+SLAVE1_1_ENGINE=          ENGINE=MyISAM
+SLAVE1_1_CHARSET=         DEFAULT CHARSET=utf8
+USE_CHILD_GROUP2=         1
+OUTPUT_CHILD_GROUP2=      0
+CHILD2_1_MYPORT=          @mysqld.1.1.port
+CHILD2_1_MYSOCK=          @mysqld.1.1.socket
+CHILD2_1_ENGINE_TYPE=     InnoDB
+CHILD2_1_ENGINE=          ENGINE=InnoDB
+CHILD2_1_CHARSET=         DEFAULT CHARSET=utf8
+CHILD2_1_CHARSET2=        DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci
+CHILD2_2_MYPORT=          @mysqld.1.1.port
+CHILD2_2_MYSOCK=          @mysqld.1.1.socket
+CHILD2_2_ENGINE_TYPE=     InnoDB
+CHILD2_2_ENGINE=          ENGINE=InnoDB
+CHILD2_2_CHARSET=         DEFAULT CHARSET=utf8
+CHILD2_3_MYPORT=          @mysqld.1.1.port
+CHILD2_3_MYSOCK=          @mysqld.1.1.socket
+CHILD2_3_ENGINE_TYPE=     InnoDB
+CHILD2_3_ENGINE=          ENGINE=InnoDB
+CHILD2_3_CHARSET=         DEFAULT CHARSET=utf8
+CHILD2_1_FT_MYPORT=       @mysqld.1.1.port
+CHILD2_1_FT_MYSOCK=       @mysqld.1.1.socket
+CHILD2_1_FT_ENGINE_TYPE=  MyISAM
+CHILD2_1_FT_ENGINE=       ENGINE=MyISAM
+CHILD2_1_FT_CHARSET=      DEFAULT CHARSET=utf8
+CHILD2_2_FT_MYPORT=       @mysqld.1.1.port
+CHILD2_2_FT_MYSOCK=       @mysqld.1.1.socket
+CHILD2_2_FT_ENGINE_TYPE=  MyISAM
+CHILD2_2_FT_ENGINE=       ENGINE=MyISAM
+CHILD2_2_FT_CHARSET=      DEFAULT CHARSET=utf8
+CHILD2_1_GM_MYPORT=       @mysqld.1.1.port
+CHILD2_1_GM_MYSOCK=       @mysqld.1.1.socket
+CHILD2_1_GM_ENGINE_TYPE=  MyISAM
+CHILD2_1_GM_ENGINE=       ENGINE=MyISAM
+CHILD2_1_GM_CHARSET=      DEFAULT CHARSET=utf8
+CHILD2_2_GM_MYPORT=       @mysqld.1.1.port
+CHILD2_2_GM_MYSOCK=       @mysqld.1.1.socket
+CHILD2_2_GM_ENGINE_TYPE=  MyISAM
+CHILD2_2_GM_ENGINE=       ENGINE=MyISAM
+CHILD2_2_GM_CHARSET=      DEFAULT CHARSET=utf8
+USE_CHILD_GROUP3=         1
+OUTPUT_CHILD_GROUP3=      0
+CHILD3_1_MYPORT=          @mysqld.3.1.port
+CHILD3_1_MYSOCK=          @mysqld.3.1.socket
+CHILD3_1_ENGINE_TYPE=     InnoDB
+CHILD3_1_ENGINE=          ENGINE=InnoDB
+CHILD3_1_CHARSET=         DEFAULT CHARSET=utf8
+CHILD3_2_MYPORT=          @mysqld.3.2.port
+CHILD3_2_MYSOCK=          @mysqld.3.2.socket
+CHILD3_2_ENGINE_TYPE=     InnoDB
+CHILD3_2_ENGINE=          ENGINE=InnoDB
+CHILD3_2_CHARSET=         DEFAULT CHARSET=utf8
+CHILD3_3_MYPORT=          @mysqld.3.3.port
+CHILD3_3_MYSOCK=          @mysqld.3.3.socket
+CHILD3_3_ENGINE_TYPE=     InnoDB
+CHILD3_3_ENGINE=          ENGINE=InnoDB
+CHILD3_3_CHARSET=         DEFAULT CHARSET=utf8
+ORACLE_HOST=              xe
+ORACLE_PORT=              1521
+ORACLE_USER=              system
+ORACLE_PASSWORD=          oracle
+ORACLE_DATABASE=          SYSTEM
+
+STR_SEMICOLON=            ;
+
+#The followings are set in include/init_xxx.inc files
+# MASTER_1_COMMENT_2_1
+# MASTER_1_COMMENT2_2_1
+# MASTER_1_COMMENT3_2_1
+# MASTER_1_COMMENT4_2_1
+# MASTER_1_COMMENT5_2_1
+# MASTER_1_COMMENT_P_2_1
+# CHILD2_1_DROP_TABLES
+# CHILD2_1_CREATE_TABLES
+# CHILD2_1_SELECT_TABLES
+# CHILD2_1_DROP_TABLES2
+# CHILD2_1_CREATE_TABLES2
+# CHILD2_1_SELECT_TABLES2
+# CHILD2_1_DROP_TABLES3
+# CHILD2_1_CREATE_TABLES3
+# CHILD2_1_SELECT_TABLES3
+# CHILD2_1_DROP_TABLES4
+# CHILD2_1_CREATE_TABLES4
+# CHILD2_1_SELECT_TABLES4
+# CHILD2_1_DROP_TABLES5
+# CHILD2_1_CREATE_TABLES5
+# CHILD2_1_SELECT_TABLES5
+# CHILD2_1_DROP_TABLES6
+# CHILD2_1_CREATE_TABLES6
+# CHILD2_1_SELECT_TABLES6
+# CHILD2_2_DROP_TABLES
+# CHILD2_2_CREATE_TABLES
+# CHILD2_2_SELECT_TABLES
diff --git a/storage/spider/mysql-test/spider/oracle/r/basic_sql.result b/storage/spider/mysql-test/spider/oracle/r/basic_sql.result
new file mode 100644
index 00000000..1e9fe78a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/r/basic_sql.result
@@ -0,0 +1,634 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+SELECT 1;
+1
+1
+
+create table select test
+DROP TABLE IF EXISTS tb_l;
+CREATE TABLE tb_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+INSERT INTO tb_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+SELECT a, b, c FROM tb_l
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+create table ignore select test
+DROP TABLE IF EXISTS ta_l;
+DROP TABLE IF EXISTS tb_l;
+CREATE TABLE tb_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+INSERT INTO tb_l (a, b, c) VALUES
+(1, 'f', '2008-07-01 10:21:39'),
+(2, 'g', '2000-02-01 00:00:00'),
+(3, 'j', '2007-05-04 20:03:11'),
+(4, 'i', '2003-10-30 05:01:03'),
+(5, 'h', '2001-10-31 23:59:59');
+CREATE TABLE ta_l (
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+IGNORE SELECT a, b, c FROM tb_l
+Warnings:
+Warning	1062	Duplicate entry '1' for key 'PRIMARY'
+Warning	1062	Duplicate entry '2' for key 'PRIMARY'
+Warning	1062	Duplicate entry '3' for key 'PRIMARY'
+Warning	1062	Duplicate entry '4' for key 'PRIMARY'
+Warning	1062	Duplicate entry '5' for key 'PRIMARY'
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+create table ignore select test
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+REPLACE SELECT a, b, c FROM tb_l
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+create no index table
+DROP TABLE IF EXISTS ta_l_no_idx;
+CREATE TABLE ta_l_no_idx
+MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT2_2_1
+SELECT a, b, c FROM tb_l
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l_no_idx ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select table
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select table shared mode
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a
+LOCK IN SHARE MODE;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select table for update
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a
+FOR UPDATE;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select table join
+SELECT a.a, a.b, date_format(b.c, '%Y-%m-%d %H:%i:%s') FROM ta_l a, tb_l b
+WHERE a.a = b.a ORDER BY a.a;
+a	b	date_format(b.c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select table straight_join
+SELECT STRAIGHT_JOIN a.a, a.b, date_format(b.c, '%Y-%m-%d %H:%i:%s')
+FROM ta_l a, tb_l b WHERE a.a = b.a ORDER BY a.a;
+a	b	date_format(b.c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select sql_small_result
+SELECT SQL_SMALL_RESULT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select sql_big_result
+SELECT SQL_BIG_RESULT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select sql_buffer_result
+SELECT SQL_BUFFER_RESULT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select sql_cache
+SELECT SQL_CACHE a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select sql_no_cache
+SELECT SQL_NO_CACHE a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select sql_calc_found_rows
+SELECT SQL_CALC_FOUND_ROWS a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a LIMIT 4;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+SELECT found_rows();
+found_rows()
+5
+
+select high_priority
+SELECT HIGH_PRIORITY a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select distinct
+SELECT DISTINCT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select count
+SELECT count(*) FROM ta_l ORDER BY a;
+count(*)
+5
+
+select table join not use index
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM tb_l a WHERE
+EXISTS (SELECT * FROM ta_l b WHERE b.b = a.b) ORDER BY a.a;
+a	b	date_format(a.c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select using pushdown
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l a WHERE
+a.b = 'g' ORDER BY a.a;
+a	b	date_format(a.c, '%Y-%m-%d %H:%i:%s')
+2	g	2000-02-01 00:00:00
+
+select using index and pushdown
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l a WHERE
+a.a > 0 AND a.b = 'g' ORDER BY a.a;
+a	b	date_format(a.c, '%Y-%m-%d %H:%i:%s')
+2	g	2000-02-01 00:00:00
+
+insert
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	e	2008-01-01 23:59:59
+
+insert select
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) SELECT a, b, c FROM tb_l;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+insert select a
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES ((SELECT a FROM tb_l ORDER BY a LIMIT 1),
+'e', '2008-01-01 23:59:59');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+
+insert low_priority
+TRUNCATE TABLE ta_l;
+INSERT LOW_PRIORITY INTO ta_l (a, b, c) values (2, 'e', '2008-01-01 23:59:59');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	e	2008-01-01 23:59:59
+
+insert high_priority
+TRUNCATE TABLE ta_l;
+INSERT HIGH_PRIORITY INTO ta_l (a, b, c) VALUES (2, 'e',
+'2008-01-01 23:59:59');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	e	2008-01-01 23:59:59
+
+insert ignore
+INSERT IGNORE INTO ta_l (a, b, c) VALUES (2, 'd', '2009-02-02 01:01:01');
+Warnings:
+Warning	1062	Duplicate entry '2' for key 'PRIMARY'
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	e	2008-01-01 23:59:59
+
+insert update (insert)
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59') ON DUPLICATE
+KEY UPDATE b = 'f', c = '2005-08-08 11:11:11';
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	e	2008-01-01 23:59:59
+
+insert update (update)
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59') ON DUPLICATE
+KEY UPDATE b = 'f', c = '2005-08-08 11:11:11';
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	f	2005-08-08 11:11:11
+
+replace
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59');
+REPLACE INTO ta_l (a, b, c) VALUES (2, 'f', '2008-02-02 02:02:02');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	f	2008-02-02 02:02:02
+
+replace select
+REPLACE INTO ta_l (a, b, c) SELECT a, b, c FROM tb_l;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+replace select a
+REPLACE INTO ta_l (a, b, c) VALUES ((SELECT a FROM tb_l ORDER BY a LIMIT 1),
+'e', '2008-01-01 23:59:59');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+replace low_priority
+REPLACE LOW_PRIORITY INTO ta_l (a, b, c) VALUES (3, 'g',
+'2009-03-03 03:03:03');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+2	g	2000-02-01 00:00:00
+3	g	2009-03-03 03:03:03
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+update
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59');
+UPDATE ta_l SET b = 'f', c = '2008-02-02 02:02:02' WHERE a = 2;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+2	f	2008-02-02 02:02:02
+
+update select
+UPDATE ta_l SET b = 'g', c = '2009-03-03 03:03:03' WHERE a IN (SELECT a FROM
+tb_l);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	g	2009-03-03 03:03:03
+2	g	2009-03-03 03:03:03
+
+update select a
+UPDATE ta_l SET b = 'h', c = '2010-04-04 04:04:04' WHERE a = (SELECT a FROM
+tb_l ORDER BY a LIMIT 1);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	h	2010-04-04 04:04:04
+2	g	2009-03-03 03:03:03
+
+update join
+UPDATE ta_l a, tb_l b SET a.b = b.b, a.c = b.c WHERE a.a = b.a;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+
+update join a
+UPDATE ta_l a, tb_l b SET a.b = 'g', a.c = '2009-03-03 03:03:03' WHERE
+a.a = b.a;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	g	2009-03-03 03:03:03
+2	g	2009-03-03 03:03:03
+
+update low_priority
+UPDATE LOW_PRIORITY ta_l SET b = 'f', c = '2008-02-02 02:02:02' WHERE a = 2;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	g	2009-03-03 03:03:03
+2	f	2008-02-02 02:02:02
+
+update ignore
+UPDATE IGNORE ta_l SET a = 1, b = 'g', c = '2009-03-03 03:03:03' WHERE a = 2;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	g	2009-03-03 03:03:03
+2	f	2008-02-02 02:02:02
+
+update pushdown
+update ta_l set b = 'j', c = '2009-03-03 03:03:03' where b = 'f';
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	g	2009-03-03 03:03:03
+2	j	2009-03-03 03:03:03
+
+update index pushdown
+UPDATE ta_l SET b = 'g', c = '2009-03-03 03:03:03' WHERE a > 0 AND b = 'j';
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	g	2009-03-03 03:03:03
+2	g	2009-03-03 03:03:03
+
+delete
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+DELETE FROM ta_l WHERE a = 2;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+3	e	2008-01-01 23:59:59
+4	e	2008-01-01 23:59:59
+5	e	2008-01-01 23:59:59
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete all
+DELETE FROM ta_l;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+
+delete select
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+DELETE FROM ta_l WHERE a IN (SELECT a FROM tb_l);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete select a
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+DELETE FROM ta_l WHERE a = (SELECT a FROM tb_l ORDER BY a LIMIT 1);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	e	2008-01-01 23:59:59
+3	e	2008-01-01 23:59:59
+4	e	2008-01-01 23:59:59
+5	e	2008-01-01 23:59:59
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete join
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+DELETE a FROM ta_l a, (SELECT a FROM tb_l ORDER BY a) b WHERE a.a = b.a;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete low_priority
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+DELETE LOW_PRIORITY FROM ta_l WHERE a = 2;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+3	e	2008-01-01 23:59:59
+4	e	2008-01-01 23:59:59
+5	e	2008-01-01 23:59:59
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete ignore
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+DELETE IGNORE FROM ta_l WHERE a = 2;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+3	e	2008-01-01 23:59:59
+4	e	2008-01-01 23:59:59
+5	e	2008-01-01 23:59:59
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete quick
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+DELETE QUICK FROM ta_l WHERE a = 2;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+3	e	2008-01-01 23:59:59
+4	e	2008-01-01 23:59:59
+5	e	2008-01-01 23:59:59
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete pushdown
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+DELETE FROM ta_l WHERE b = 'e';
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+10	j	2008-01-01 23:59:59
+
+delete index pushdown
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+DELETE FROM ta_l WHERE a > 0 AND b = 'e';
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+10	j	2008-01-01 23:59:59
+
+truncate
+TRUNCATE TABLE ta_l;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+
+deinit
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/oracle/r/basic_sql_part.result b/storage/spider/mysql-test/spider/oracle/r/basic_sql_part.result
new file mode 100644
index 00000000..9e1201c1
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/r/basic_sql_part.result
@@ -0,0 +1,121 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+SELECT 1;
+1
+1
+DROP TABLE IF EXISTS tb_l;
+CREATE TABLE tb_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+INSERT INTO tb_l (a, b, c) VALUES
+(1, 'f', '2008-07-01 10:21:39'),
+(2, 'g', '2000-02-01 00:00:00'),
+(3, 'j', '2007-05-04 20:03:11'),
+(4, 'i', '2003-10-30 05:01:03'),
+(5, 'h', '2001-10-31 23:59:59');
+
+create table with partition and select test
+CREATE TABLE ta_l2 (
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_COMMENT_P_2_1
+SELECT a, b, c FROM tb_l
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select partition using pushdown
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 a WHERE
+a.b = 'g' ORDER BY a.a;
+a	b	date_format(a.c, '%Y-%m-%d %H:%i:%s')
+2	g	2000-02-01 00:00:00
+
+select partition using index pushdown
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 a WHERE
+a.a > 0 AND a.b = 'g' ORDER BY a.a;
+a	b	date_format(a.c, '%Y-%m-%d %H:%i:%s')
+2	g	2000-02-01 00:00:00
+
+update partition pushdown
+UPDATE ta_l2 SET b = 'e', c = '2009-03-03 03:03:03' WHERE b = 'j';
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	e	2009-03-03 03:03:03
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+update partition index pushdown
+UPDATE ta_l2 SET b = 'j', c = '2009-03-03 03:03:03' WHERE a > 0 AND b = 'e';
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2009-03-03 03:03:03
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+delete partition pushdown
+TRUNCATE TABLE ta_l2;
+INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+DELETE FROM ta_l2 WHERE b = 'g';
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+delete partition index pushdown
+TRUNCATE TABLE ta_l2;
+INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+DELETE FROM ta_l2 WHERE a > 0 AND b = 'g';
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+deinit
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/oracle/r/direct_aggregate.result b/storage/spider/mysql-test/spider/oracle/r/direct_aggregate.result
new file mode 100644
index 00000000..fe5752cf
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/r/direct_aggregate.result
@@ -0,0 +1,91 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+SELECT 1;
+1
+1
+
+create table select test
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO ta_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+direct_aggregating test
+SHOW GLOBAL STATUS LIKE 'Spider_direct_aggregate%';
+Variable_name	Value
+Spider_direct_aggregate	0
+SELECT COUNT(*) FROM ta_l;
+COUNT(*)
+5
+SHOW GLOBAL STATUS LIKE 'Spider_direct_aggregate%';
+Variable_name	Value
+Spider_direct_aggregate	1
+SELECT MAX(a) FROM ta_l;
+MAX(a)
+5
+SHOW GLOBAL STATUS LIKE 'Spider_direct_aggregate%';
+Variable_name	Value
+Spider_direct_aggregate	1
+SELECT MIN(a) FROM ta_l;
+MIN(a)
+1
+SHOW GLOBAL STATUS LIKE 'Spider_direct_aggregate%';
+Variable_name	Value
+Spider_direct_aggregate	1
+SELECT MAX(a) FROM ta_l WHERE a < 5;
+MAX(a)
+4
+SHOW GLOBAL STATUS LIKE 'Spider_direct_aggregate%';
+Variable_name	Value
+Spider_direct_aggregate	1
+SELECT MIN(a) FROM ta_l WHERE a > 1;
+MIN(a)
+2
+SHOW GLOBAL STATUS LIKE 'Spider_direct_aggregate%';
+Variable_name	Value
+Spider_direct_aggregate	1
+
+deinit
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/oracle/r/direct_aggregate_part.result b/storage/spider/mysql-test/spider/oracle/r/direct_aggregate_part.result
new file mode 100644
index 00000000..9bde4a17
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/r/direct_aggregate_part.result
@@ -0,0 +1,82 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+SELECT 1;
+1
+1
+
+with partition test
+CREATE TABLE ta_l2 (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1
+SHOW GLOBAL STATUS LIKE 'Spider_direct_aggregate%';
+Variable_name	Value
+Spider_direct_aggregate	0
+SELECT COUNT(*) FROM ta_l2;
+COUNT(*)
+5
+SHOW GLOBAL STATUS LIKE 'Spider_direct_aggregate%';
+Variable_name	Value
+Spider_direct_aggregate	2
+SELECT MAX(a) FROM ta_l2;
+MAX(a)
+5
+SHOW GLOBAL STATUS LIKE 'Spider_direct_aggregate%';
+Variable_name	Value
+Spider_direct_aggregate	2
+SELECT MIN(a) FROM ta_l2;
+MIN(a)
+1
+SHOW GLOBAL STATUS LIKE 'Spider_direct_aggregate%';
+Variable_name	Value
+Spider_direct_aggregate	2
+SELECT MAX(a) FROM ta_l2 WHERE a < 5;
+MAX(a)
+4
+SHOW GLOBAL STATUS LIKE 'Spider_direct_aggregate%';
+Variable_name	Value
+Spider_direct_aggregate	2
+SELECT MIN(a) FROM ta_l2 WHERE a > 1;
+MIN(a)
+2
+SHOW GLOBAL STATUS LIKE 'Spider_direct_aggregate%';
+Variable_name	Value
+Spider_direct_aggregate	2
+
+deinit
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/oracle/r/direct_update.result b/storage/spider/mysql-test/spider/oracle/r/direct_update.result
new file mode 100644
index 00000000..3dc39d5f
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/r/direct_update.result
@@ -0,0 +1,138 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+SELECT 1;
+1
+1
+
+create table select test
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO ta_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+direct_updating test
+SHOW GLOBAL STATUS LIKE 'Spider_direct_update%';
+Variable_name	Value
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+update all rows with function
+UPDATE ta_l SET c = ADDDATE(c, 1);
+SHOW GLOBAL STATUS LIKE 'Spider_direct_update%';
+Variable_name	Value
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	e	2007-06-05 20:03:11
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+update by primary key
+UPDATE ta_l SET b = 'x' WHERE a = 3;
+SHOW GLOBAL STATUS LIKE 'Spider_direct_update%';
+Variable_name	Value
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	x	2007-06-05 20:03:11
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+update by a column without index
+UPDATE ta_l SET c = '2011-10-17' WHERE b = 'x';
+SHOW GLOBAL STATUS LIKE 'Spider_direct_update%';
+Variable_name	Value
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	x	2011-10-17 00:00:00
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+update by primary key with order and limit
+UPDATE ta_l SET c = ADDDATE(c, 1) WHERE a < 4 ORDER BY b DESC LIMIT 1;
+SHOW GLOBAL STATUS LIKE 'Spider_direct_update%';
+Variable_name	Value
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	x	2011-10-18 00:00:00
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+delete by primary key with order and limit
+DELETE FROM ta_l WHERE a < 4 ORDER BY c LIMIT 1;
+SHOW GLOBAL STATUS LIKE 'Spider_direct_delete%';
+Variable_name	Value
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+3	x	2011-10-18 00:00:00
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+delete by a column without index
+DELETE FROM ta_l WHERE b = 'c';
+SHOW GLOBAL STATUS LIKE 'Spider_direct_delete%';
+Variable_name	Value
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+3	x	2011-10-18 00:00:00
+4	d	2003-12-01 05:01:03
+delete by primary key
+DELETE FROM ta_l WHERE a = 3;
+SHOW GLOBAL STATUS LIKE 'Spider_direct_delete%';
+Variable_name	Value
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+4	d	2003-12-01 05:01:03
+
+deinit
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/oracle/r/direct_update_part.result b/storage/spider/mysql-test/spider/oracle/r/direct_update_part.result
new file mode 100644
index 00000000..8a22c40a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/r/direct_update_part.result
@@ -0,0 +1,129 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+SELECT 1;
+1
+1
+
+with partition test
+CREATE TABLE ta_l2 (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1
+SHOW GLOBAL STATUS LIKE 'Spider_direct_update%';
+Variable_name	Value
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+update all rows with function
+UPDATE ta_l2 SET c = ADDDATE(c, 1);
+SHOW GLOBAL STATUS LIKE 'Spider_direct_update%';
+Variable_name	Value
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	e	2007-06-05 20:03:11
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+update by primary key
+UPDATE ta_l2 SET b = 'x' WHERE a = 3;
+SHOW GLOBAL STATUS LIKE 'Spider_direct_update%';
+Variable_name	Value
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	x	2007-06-05 20:03:11
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+update by a column without index
+UPDATE ta_l2 SET c = '2011-10-17' WHERE b = 'x';
+SHOW GLOBAL STATUS LIKE 'Spider_direct_update%';
+Variable_name	Value
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	x	2011-10-17 00:00:00
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+update by primary key with order and limit
+UPDATE ta_l2 SET c = ADDDATE(c, 1) WHERE a < 4 ORDER BY b DESC LIMIT 1;
+SHOW GLOBAL STATUS LIKE 'Spider_direct_update%';
+Variable_name	Value
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	x	2011-10-18 00:00:00
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+delete by primary key with order and limit
+DELETE FROM ta_l2 WHERE a < 4 ORDER BY c LIMIT 1;
+SHOW GLOBAL STATUS LIKE 'Spider_direct_delete%';
+Variable_name	Value
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+3	x	2011-10-18 00:00:00
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+delete by a column without index
+DELETE FROM ta_l2 WHERE b = 'c';
+SHOW GLOBAL STATUS LIKE 'Spider_direct_delete%';
+Variable_name	Value
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+3	x	2011-10-18 00:00:00
+4	d	2003-12-01 05:01:03
+delete by primary key
+DELETE FROM ta_l2 WHERE a = 3;
+SHOW GLOBAL STATUS LIKE 'Spider_direct_delete%';
+Variable_name	Value
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+4	d	2003-12-01 05:01:03
+
+deinit
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/oracle/r/function.result b/storage/spider/mysql-test/spider/oracle/r/function.result
new file mode 100644
index 00000000..764c7745
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/r/function.result
@@ -0,0 +1,149 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+SELECT 1;
+1
+1
+
+in()
+CREATE TABLE t1 (
+a VARCHAR(255),
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET3 MASTER_1_COMMENT_TEXT_PK1_1
+insert into t1 values ('1');
+insert into t1 select a + 1 from t1;
+insert into t1 select a + 2 from t1;
+insert into t1 select a + 4 from t1;
+insert into t1 select a + 8 from t1;
+insert into t1 select a + 16 from t1;
+insert into t1 select a + 32 from t1;
+insert into t1 select a + 64 from t1;
+insert into t1 select a + 128 from t1;
+insert into t1 select a + 256 from t1;
+insert into t1 select a + 512 from t1;
+flush tables;
+select a from t1 where a in ('15', '120');
+a
+120
+15
+
+date_sub()
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO ta_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 YEAR);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-08-01 10:21:39
+2	b	1999-01-01 00:00:00
+3	e	2006-06-04 20:03:11
+4	d	2002-11-30 05:01:03
+5	c	2000-12-31 23:59:59
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 QUARTER);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-11-01 10:21:39
+2	b	1999-04-01 00:00:00
+3	e	2006-09-04 20:03:11
+4	d	2003-02-28 05:01:03
+5	c	2001-03-31 23:59:59
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 MONTH);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-10-01 10:21:39
+2	b	1999-03-01 00:00:00
+3	e	2006-08-04 20:03:11
+4	d	2003-01-28 05:01:03
+5	c	2001-02-28 23:59:59
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 WEEK);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-10-08 10:21:39
+2	b	1999-03-08 00:00:00
+3	e	2006-08-11 20:03:11
+4	d	2003-02-04 05:01:03
+5	c	2001-03-07 23:59:59
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 DAY);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-10-07 10:21:39
+2	b	1999-03-07 00:00:00
+3	e	2006-08-10 20:03:11
+4	d	2003-02-03 05:01:03
+5	c	2001-03-06 23:59:59
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 HOUR);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-10-07 11:21:39
+2	b	1999-03-07 01:00:00
+3	e	2006-08-10 21:03:11
+4	d	2003-02-03 06:01:03
+5	c	2001-03-07 00:59:59
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 MINUTE);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-10-07 11:20:39
+2	b	1999-03-07 00:59:00
+3	e	2006-08-10 21:02:11
+4	d	2003-02-03 06:00:03
+5	c	2001-03-07 00:58:59
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 SECOND);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-10-07 11:20:40
+2	b	1999-03-07 00:59:01
+3	e	2006-08-10 21:02:12
+4	d	2003-02-03 06:00:04
+5	c	2001-03-07 00:59:00
+
+deinit
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/oracle/r/ha.result b/storage/spider/mysql-test/spider/oracle/r/ha.result
new file mode 100644
index 00000000..8ca64dec
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/r/ha.result
@@ -0,0 +1,240 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+DROP DATABASE IF EXISTS auto_test_remote3;
+CREATE DATABASE auto_test_remote3;
+USE auto_test_remote3;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+test select 1
+SELECT 1;
+1
+1
+
+create table test
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_2_1
+INSERT INTO ta_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+select test
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+fail-over test
+SHOW GLOBAL STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	0
+Spider_mon_table_cache_version_req	1
+INSERT INTO ta_l (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+ERROR HY000: Table 'SYSTEM.ta_r3' get a problem
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l	0	1
+auto_test_local	ta_l	1	3
+SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+db_name	table_name	link_id
+auto_test_local	ta_l	1
+SHOW GLOBAL STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	1
+Spider_mon_table_cache_version_req	1
+INSERT INTO ta_l (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+6	e	2011-05-05 20:04:05
+
+recovery test
+ALTER TABLE ta_l
+CONNECTION='host "xe", user "system",
+  password "oracle", msi "2", mkd "2",
+  database "SYSTEM", lst "0 2"';
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l	0	1
+auto_test_local	ta_l	1	2
+SELECT spider_copy_tables('ta_l', '0', '1');
+spider_copy_tables('ta_l', '0', '1')
+1
+ALTER TABLE ta_l
+CONNECTION='host "xe", user "system",
+  password "oracle", msi "2", mkd "2",
+  database "SYSTEM", lst "0 1"';
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l	0	1
+auto_test_local	ta_l	1	1
+INSERT INTO ta_l (a, b, c) VALUES
+(8, 'g', '2011-05-05 21:33:30');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+6	e	2011-05-05 20:04:05
+8	g	2011-05-05 21:33:30
+DROP TABLE ta_l;
+SELECT spider_flush_table_mon_cache();
+spider_flush_table_mon_cache()
+1
+
+active standby test
+create table test
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_AS_2_1
+INSERT INTO ta_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+select test
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+fail-over test
+SHOW GLOBAL STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	1
+Spider_mon_table_cache_version_req	2
+INSERT INTO ta_l (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+ERROR HY000: Table 'SYSTEM.ta_r' get a problem
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l	0	3
+auto_test_local	ta_l	1	1
+SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+db_name	table_name	link_id
+auto_test_local	ta_l	1
+auto_test_local	ta_l	0
+SHOW GLOBAL STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	2
+Spider_mon_table_cache_version_req	2
+INSERT INTO ta_l (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+6	e	2011-05-05 20:04:05
+
+recovery test
+ALTER TABLE ta_l
+CONNECTION='host "xe", user "system",
+  password "oracle", msi "2", mkd "2", alc "1",
+  database "SYSTEM", lst "1 0"';
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l	0	1
+auto_test_local	ta_l	1	1
+INSERT INTO ta_l (a, b, c) VALUES
+(8, 'g', '2011-05-05 21:33:30');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+8	g	2011-05-05 21:33:30
+DROP TABLE ta_l;
+SELECT spider_flush_table_mon_cache();
+spider_flush_table_mon_cache()
+1
+
+deinit
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+DROP DATABASE IF EXISTS auto_test_remote3;
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_local;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/oracle/r/ha_part.result b/storage/spider/mysql-test/spider/oracle/r/ha_part.result
new file mode 100644
index 00000000..e11b6f69
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/r/ha_part.result
@@ -0,0 +1,262 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+DROP DATABASE IF EXISTS auto_test_remote3;
+CREATE DATABASE auto_test_remote3;
+USE auto_test_remote3;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+test select 1
+SELECT 1;
+1
+1
+
+create table with partition test
+DROP TABLE IF EXISTS ta_l2;
+CREATE TABLE ta_l2 (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_P_2_1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+select test
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+fail-over test
+SHOW GLOBAL STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	0
+Spider_mon_table_cache_version_req	1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+ERROR HY000: Table 'SYSTEM.ta_r4' get a problem
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l2#P#pt1	0	1
+auto_test_local	ta_l2#P#pt1	1	1
+auto_test_local	ta_l2#P#pt2	0	1
+auto_test_local	ta_l2#P#pt2	1	3
+SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+db_name	table_name	link_id
+auto_test_local	ta_l2#P#pt2	1
+SHOW GLOBAL STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	1
+Spider_mon_table_cache_version_req	1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+6	e	2011-05-05 20:04:05
+
+recovery test
+ALTER TABLE ta_l2
+PARTITION BY KEY(a) (
+PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 2"'
+  );
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l2#P#pt1	0	1
+auto_test_local	ta_l2#P#pt1	1	1
+auto_test_local	ta_l2#P#pt2	0	1
+auto_test_local	ta_l2#P#pt2	1	2
+SELECT spider_copy_tables('ta_l2#P#pt2', '0', '1');
+spider_copy_tables('ta_l2#P#pt2', '0', '1')
+1
+ALTER TABLE ta_l2
+PARTITION BY KEY(a) (
+PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 1"'
+  );
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l2#P#pt1	0	1
+auto_test_local	ta_l2#P#pt1	1	1
+auto_test_local	ta_l2#P#pt2	0	1
+auto_test_local	ta_l2#P#pt2	1	1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(8, 'g', '2011-05-05 21:33:30'),
+(9, 'h', '2011-05-05 22:32:10');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+6	e	2011-05-05 20:04:05
+8	g	2011-05-05 21:33:30
+9	h	2011-05-05 22:32:10
+DROP TABLE ta_l2;
+
+create table with partition test
+DROP TABLE IF EXISTS ta_l2;
+CREATE TABLE ta_l2 (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_AS_P_2_1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+select test
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+fail-over test
+SHOW GLOBAL STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	1
+Spider_mon_table_cache_version_req	1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+ERROR HY000: Table 'SYSTEM.ta_r2' get a problem
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l2#P#pt1	0	1
+auto_test_local	ta_l2#P#pt1	1	1
+auto_test_local	ta_l2#P#pt2	0	3
+auto_test_local	ta_l2#P#pt2	1	1
+SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+db_name	table_name	link_id
+auto_test_local	ta_l2#P#pt2	1
+auto_test_local	ta_l2#P#pt2	0
+SHOW GLOBAL STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	1
+Spider_mon_table_cache_version_req	1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+3	e	2007-06-04 20:03:11
+5	c	2001-12-31 23:59:59
+6	e	2011-05-05 20:04:05
+
+recovery test
+ALTER TABLE ta_l2
+PARTITION BY KEY(a) (
+PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "1 0"'
+  );
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l2#P#pt1	0	1
+auto_test_local	ta_l2#P#pt1	1	1
+auto_test_local	ta_l2#P#pt2	0	1
+auto_test_local	ta_l2#P#pt2	1	1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(8, 'g', '2011-05-05 21:33:30'),
+(9, 'h', '2011-05-05 22:32:10');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+3	e	2007-06-04 20:03:11
+5	c	2001-12-31 23:59:59
+8	g	2011-05-05 21:33:30
+9	h	2011-05-05 22:32:10
+DROP TABLE ta_l2;
+
+deinit
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+DROP DATABASE IF EXISTS auto_test_remote3;
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_local;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/oracle/r/spider3_fixes.result b/storage/spider/mysql-test/spider/oracle/r/spider3_fixes.result
new file mode 100644
index 00000000..418f8bb3
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/r/spider3_fixes.result
@@ -0,0 +1,194 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for slave1_1
+
+drop and create databases
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+SELECT 1;
+1
+1
+
+3.1
+auto_increment
+DROP TABLE IF EXISTS t1, t2;
+CREATE TABLE t1 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_1
+CREATE TABLE t2 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_1
+MASTER_1_AUTO_INCREMENT_INCREMENT2
+MASTER_1_AUTO_INCREMENT_OFFSET2
+spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_1"\'; exception when others then null; end;', '', 'srv "s_2_1"')
+1
+spider_direct_sql('CREATE SEQUENCE "seq_t1_1" START WITH 2 INCREMENT BY 4', '', 'srv "s_2_1"')
+1
+spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_2"\'; exception when others then null; end;', '', 'srv "s_2_2"')
+1
+spider_direct_sql('CREATE SEQUENCE "seq_t1_2" START WITH 3 INCREMENT BY 4', '', 'srv "s_2_2"')
+1
+spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_1"\'; exception when others then null; end;', '', 'srv "s_2_1"')
+1
+spider_direct_sql('CREATE SEQUENCE "seq_t1_1" START WITH 2 INCREMENT BY 4', '', 'srv "s_2_1"')
+1
+spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_2"\'; exception when others then null; end;', '', 'srv "s_2_2"')
+1
+spider_direct_sql('CREATE SEQUENCE "seq_t1_2" START WITH 3 INCREMENT BY 4', '', 'srv "s_2_2"')
+1
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+777
+SELECT MAX(id) FROM t1;
+MAX(id)
+777
+INSERT INTO t2 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+1554
+SELECT MAX(id) FROM t2;
+MAX(id)
+1554
+MASTER_1_AUTO_INCREMENT_OFFSET3
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+1555
+SELECT MAX(id) FROM t1;
+MAX(id)
+1555
+MASTER_1_AUTO_INCREMENT_OFFSET4
+INSERT INTO t2 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+2331
+SELECT MAX(id) FROM t2;
+MAX(id)
+2331
+MASTER_1_AUTO_INCREMENT_OFFSET3
+INSERT INTO t1 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+2332
+SELECT id FROM t1 ORDER BY id;
+id
+777
+1554
+1555
+2331
+2332
+3109
+3886
+4663
+MASTER_1_AUTO_INCREMENT_OFFSET4
+INSERT INTO t2 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+5439
+SELECT id FROM t2 ORDER BY id;
+id
+777
+1554
+1555
+2331
+2332
+3109
+3886
+4663
+5439
+6216
+6993
+7770
+TRUNCATE TABLE t1;
+TRUNCATE TABLE t2;
+INSERT INTO t1 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+777
+SELECT id FROM t1 ORDER BY id;
+id
+777
+1554
+2331
+3108
+INSERT INTO t2 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+3885
+SELECT id FROM t2 ORDER BY id;
+id
+777
+1554
+2331
+3108
+3885
+4662
+5439
+6216
+SET INSERT_ID=5000;
+MASTER_1_AUTO_INCREMENT_OFFSET3
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+5000
+SELECT MAX(id) FROM t1;
+MAX(id)
+6216
+MASTER_1_AUTO_INCREMENT_OFFSET4
+INSERT INTO t2 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+6993
+SELECT MAX(id) FROM t2;
+MAX(id)
+6993
+INSERT INTO t1 (id) VALUES (10000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+6993
+SELECT MAX(id) FROM t1;
+MAX(id)
+10000
+INSERT INTO t2 (id) VALUES (1000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+6993
+SELECT MAX(id) FROM t2;
+MAX(id)
+10000
+
+deinit
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for slave1_1
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/oracle/r/spider3_fixes_part.result b/storage/spider/mysql-test/spider/oracle/r/spider3_fixes_part.result
new file mode 100644
index 00000000..accb4607
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/r/spider3_fixes_part.result
@@ -0,0 +1,192 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for slave1_1
+
+drop and create databases
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+SELECT 1;
+1
+1
+auto_increment with partition
+DROP TABLE IF EXISTS t1, t2;
+CREATE TABLE t1 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_P_1
+CREATE TABLE t2 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_P_1
+MASTER_1_AUTO_INCREMENT_INCREMENT2
+MASTER_1_AUTO_INCREMENT_OFFSET2
+spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_1"\'; exception when others then null; end;', '', 'srv "s_2_1"')
+1
+spider_direct_sql('CREATE SEQUENCE "seq_t1_1" START WITH 2 INCREMENT BY 4', '', 'srv "s_2_1"')
+1
+spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_2"\'; exception when others then null; end;', '', 'srv "s_2_2"')
+1
+spider_direct_sql('CREATE SEQUENCE "seq_t1_2" START WITH 3 INCREMENT BY 4', '', 'srv "s_2_2"')
+1
+spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_1"\'; exception when others then null; end;', '', 'srv "s_2_1"')
+1
+spider_direct_sql('CREATE SEQUENCE "seq_t1_1" START WITH 2 INCREMENT BY 4', '', 'srv "s_2_1"')
+1
+spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_2"\'; exception when others then null; end;', '', 'srv "s_2_2"')
+1
+spider_direct_sql('CREATE SEQUENCE "seq_t1_2" START WITH 3 INCREMENT BY 4', '', 'srv "s_2_2"')
+1
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+777
+SELECT MAX(id) FROM t1;
+MAX(id)
+777
+INSERT INTO t2 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+1554
+SELECT MAX(id) FROM t2;
+MAX(id)
+1554
+MASTER_1_AUTO_INCREMENT_OFFSET3
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+778
+SELECT MAX(id) FROM t1;
+MAX(id)
+1554
+MASTER_1_AUTO_INCREMENT_OFFSET4
+INSERT INTO t2 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+2331
+SELECT MAX(id) FROM t2;
+MAX(id)
+2331
+MASTER_1_AUTO_INCREMENT_OFFSET3
+INSERT INTO t1 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+1555
+SELECT id FROM t1 ORDER BY id;
+id
+777
+778
+1554
+1555
+2331
+2332
+3109
+3886
+MASTER_1_AUTO_INCREMENT_OFFSET4
+INSERT INTO t2 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+3108
+SELECT id FROM t2 ORDER BY id;
+id
+777
+778
+1554
+1555
+2331
+2332
+3108
+3109
+3885
+3886
+4662
+5439
+TRUNCATE TABLE t1;
+TRUNCATE TABLE t2;
+INSERT INTO t1 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+777
+SELECT id FROM t1 ORDER BY id;
+id
+777
+1554
+2331
+3108
+INSERT INTO t2 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+3885
+SELECT id FROM t2 ORDER BY id;
+id
+777
+1554
+2331
+3108
+3885
+4662
+5439
+6216
+SET INSERT_ID=5000;
+MASTER_1_AUTO_INCREMENT_OFFSET3
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+5000
+SELECT MAX(id) FROM t1;
+MAX(id)
+6216
+MASTER_1_AUTO_INCREMENT_OFFSET4
+INSERT INTO t2 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+6993
+SELECT MAX(id) FROM t2;
+MAX(id)
+6993
+INSERT INTO t1 (id) VALUES (10000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+6993
+SELECT MAX(id) FROM t1;
+MAX(id)
+10000
+INSERT INTO t2 (id) VALUES (1000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+6993
+SELECT MAX(id) FROM t2;
+MAX(id)
+10000
+
+deinit
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for slave1_1
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/oracle/r/spider_fixes.result b/storage/spider/mysql-test/spider/oracle/r/spider_fixes.result
new file mode 100644
index 00000000..85efde74
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/r/spider_fixes.result
@@ -0,0 +1,552 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for slave1_1
+
+drop and create databases
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+SELECT 1;
+1
+1
+
+create table and insert
+DROP TABLE IF EXISTS tb_l;
+CREATE TABLE tb_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+INSERT INTO tb_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+
+2.13
+select table with "order by desc" and "<"
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+WHERE a < 5 ORDER BY a DESC LIMIT 3;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+4	d	2003-11-30 05:01:03
+3	e	2007-06-04 20:03:11
+2	b	2000-01-01 00:00:00
+
+select table with "order by desc" and "<="
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+WHERE a <= 5 ORDER BY a DESC LIMIT 3;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+5	c	2001-12-31 23:59:59
+4	d	2003-11-30 05:01:03
+3	e	2007-06-04 20:03:11
+
+2.14
+update table with range scan and split_read
+UPDATE ta_l SET c = '2000-02-02 00:00:00' WHERE a > 1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-02-02 00:00:00
+3	e	2000-02-02 00:00:00
+4	d	2000-02-02 00:00:00
+5	c	2000-02-02 00:00:00
+
+2.15
+select table with range scan
+TRUNCATE TABLE ta_l;
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+a int(11) NOT NULL DEFAULT '0',
+b char(1) DEFAULT NULL,
+c datetime DEFAULT NULL,
+PRIMARY KEY (a, b, c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT5_2_1
+INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b >= 'b'
+AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b > 'b'
+AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a >= 4 AND b = 'd'
+AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a > 4 AND b = 'c'
+AND c = '2001-12-31 23:59:59';
+a	b	c
+5	c	2001-12-31 23:59:59
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b <= 'd'
+AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b < 'e'
+AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a <= 4 AND b = 'b'
+AND c = '2000-01-01 00:00:00';
+a	b	c
+2	b	2000-01-01 00:00:00
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a < 4 AND b = 'b'
+AND c = '2000-01-01 00:00:00';
+a	b	c
+2	b	2000-01-01 00:00:00
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b >= 'b'
+AND b <= 'd' AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b > 'b'
+AND b < 'e' AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a <= 4 AND a >= 1
+AND b >= 'b' AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a < 4 AND a > 1
+AND b >= 'b' AND c = '2000-01-01 00:00:00';
+a	b	c
+2	b	2000-01-01 00:00:00
+
+2.16
+auto_increment insert with trigger
+CREATE TABLE ta_l_auto_inc (
+a INT AUTO_INCREMENT,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10',
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT3_2_1
+CREATE TABLE tc_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+CREATE TRIGGER ins_ta_l_auto_inc AFTER INSERT ON ta_l_auto_inc FOR EACH ROW BEGIN INSERT INTO tc_l (a, b, c) VALUES (NEW.a, NEW.b, NEW.c); END;;
+INSERT INTO ta_l_auto_inc (a, b, c) VALUES
+(NULL, 's', '2008-12-31 20:59:59');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM tc_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	s	2008-12-31 20:59:59
+
+2.17
+engine-condition-pushdown with "or" and joining
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l WHERE a = 1 OR a IN (SELECT a FROM tb_l);
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+2.23
+index merge
+CREATE TABLE ta_l_int (
+a INT AUTO_INCREMENT,
+b INT DEFAULT 10,
+c INT DEFAULT 11,
+PRIMARY KEY(a),
+KEY idx1(b),
+KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1
+INSERT INTO ta_l_int (a, b, c) VALUES (1, 2, 3);
+INSERT INTO ta_l_int (a, b, c) SELECT a + 1, b + 1, c + 1 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 2, b + 2, c + 2 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 4, b + 4, c + 4 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 8, b + 8, c + 8 FROM ta_l_int;
+SELECT a, b, c FROM ta_l_int force index(primary, idx1, idx2)
+WHERE a = 5 OR b = 5 OR c = 5 ORDER BY a;
+a	b	c
+3	4	5
+4	5	6
+5	6	7
+
+2.24
+index scan update without PK
+DROP TABLE IF EXISTS ta_l_int;
+CREATE TABLE ta_l_int (
+a INT NOT NULL,
+b INT DEFAULT 10,
+c INT DEFAULT 11,
+KEY idx1(b),
+KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1
+SELECT a, b, c FROM ta_l_int ORDER BY a;
+a	b	c
+1	2	3
+2	3	4
+3	4	5
+4	5	6
+5	6	7
+6	7	8
+7	8	9
+8	9	10
+9	10	11
+10	11	12
+11	12	13
+12	13	14
+13	14	15
+14	15	16
+15	16	17
+16	17	18
+INSERT INTO ta_l_int (a, b, c) VALUES (0, 2, 3);
+INSERT INTO ta_l_int (a, b, c) VALUES (18, 2, 3);
+UPDATE ta_l_int SET c = 4 WHERE b = 2;
+SELECT a, b, c FROM ta_l_int ORDER BY a;
+a	b	c
+0	2	4
+1	2	4
+2	3	4
+3	4	5
+4	5	6
+5	6	7
+6	7	8
+7	8	9
+8	9	10
+9	10	11
+10	11	12
+11	12	13
+12	13	14
+13	14	15
+14	15	16
+15	16	17
+16	17	18
+18	2	4
+
+2.25
+direct order limit
+SHOW GLOBAL STATUS LIKE 'Spider_direct_order_limit%';
+Variable_name	Value
+Spider_direct_order_limit	0
+SELECT a, b, c FROM ta_l_int ORDER BY a LIMIT 3;
+a	b	c
+1	2	4
+2	3	4
+3	4	5
+SHOW GLOBAL STATUS LIKE 'Spider_direct_order_limit%';
+Variable_name	Value
+Spider_direct_order_limit	0
+
+2.26
+lock tables
+DROP TABLE IF EXISTS t1;
+DROP TABLE IF EXISTS t2;
+CREATE TABLE t1 (
+id int(11) NOT NULL,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_LOCK1
+CREATE TABLE t2 (
+id int(11) NOT NULL,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_LOCK2
+LOCK TABLES t1 READ, t2 READ;
+UNLOCK TABLES;
+
+auto_increment
+DROP TABLE IF EXISTS t1;
+CREATE TABLE t1 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_1
+MASTER_1_AUTO_INCREMENT_INCREMENT2
+MASTER_1_AUTO_INCREMENT_OFFSET2
+spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_1"\'; exception when others then null; end;', '', 'srv "s_2_1"')
+1
+spider_direct_sql('CREATE SEQUENCE "seq_t1_1" START WITH 2 INCREMENT BY 4', '', 'srv "s_2_1"')
+1
+spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_2"\'; exception when others then null; end;', '', 'srv "s_2_2"')
+1
+spider_direct_sql('CREATE SEQUENCE "seq_t1_2" START WITH 3 INCREMENT BY 4', '', 'srv "s_2_2"')
+1
+spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_1"\'; exception when others then null; end;', '', 'srv "s_2_1"')
+1
+spider_direct_sql('CREATE SEQUENCE "seq_t1_1" START WITH 2 INCREMENT BY 4', '', 'srv "s_2_1"')
+1
+spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_2"\'; exception when others then null; end;', '', 'srv "s_2_2"')
+1
+spider_direct_sql('CREATE SEQUENCE "seq_t1_2" START WITH 3 INCREMENT BY 4', '', 'srv "s_2_2"')
+1
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+777
+SELECT MAX(id) FROM t1;
+MAX(id)
+777
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+1554
+SELECT MAX(id) FROM t1;
+MAX(id)
+1554
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+2331
+SELECT MAX(id) FROM t1;
+MAX(id)
+2331
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+3108
+SELECT MAX(id) FROM t1;
+MAX(id)
+3108
+INSERT INTO t1 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+3885
+SELECT id FROM t1 ORDER BY id;
+id
+777
+1554
+2331
+3108
+3885
+4662
+5439
+6216
+SET INSERT_ID=5000;
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+5000
+SELECT MAX(id) FROM t1;
+MAX(id)
+6216
+INSERT INTO t1 (id) VALUES (10000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+5000
+SELECT MAX(id) FROM t1;
+MAX(id)
+10000
+INSERT INTO t1 (id) VALUES (1000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+5000
+SELECT MAX(id) FROM t1;
+MAX(id)
+10000
+
+read only
+DROP TABLE IF EXISTS t1;
+CREATE TABLE t1 (
+id int(11) NOT NULL,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_READONLY1_1
+SELECT id FROM t1 ORDER BY id;
+id
+777
+1000
+1554
+2331
+3108
+3885
+4662
+5000
+5439
+6216
+10000
+INSERT INTO t1 (id) VALUES (1);
+ERROR HY000: Table 'auto_test_local.t1' is read only
+UPDATE t1 SET id = 4 WHERE id = 777;
+ERROR HY000: Table 'auto_test_local.t1' is read only
+DELETE FROM t1 WHERE id = 777;
+ERROR HY000: Table 'auto_test_local.t1' is read only
+DELETE FROM t1;
+ERROR HY000: Table 'auto_test_local.t1' is read only
+TRUNCATE t1;
+ERROR HY000: Table 'auto_test_local.t1' is read only
+
+2.27
+error mode
+DROP TABLE IF EXISTS t1;
+CREATE TABLE t1 (
+id int(11) NOT NULL,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_ERROR_MODE1_1
+SELECT id FROM t1 ORDER BY id;
+id
+Warnings:
+Error	12712	Error from Oracle -1 942 ORA-00942: ???????????????
+
+Error	12712	Oracle error
+Error	12712	Error from Oracle -1 942 ORA-00942: ???????????????
+
+Error	12712	Oracle error
+INSERT INTO t1 (id) VALUES (1);
+Warnings:
+Error	12712	Error from Oracle -1 942 ORA-00942: ???????????????
+
+Error	12712	Oracle error
+DELETE FROM t1;
+Warnings:
+Error	12712	Error from Oracle -1 942 ORA-00942: ???????????????
+
+Error	12712	Oracle error
+TRUNCATE t1;
+Warnings:
+Error	12712	Error from Oracle -1 942 ORA-00942: ???????????????
+
+Error	12712	Oracle error
+
+3.0
+is null
+DROP TABLE IF EXISTS t1;
+CREATE TABLE t1 (
+a VARCHAR(255),
+b VARCHAR(255),
+c VARCHAR(255),
+KEY idx1(a,b),
+KEY idx2(b),
+PRIMARY KEY(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_TEXT_KEY1_1
+insert into t1 values (null, null, '2048');
+insert into t1 values ('1', '1', '1');
+insert into t1 select a + 1,   b + 1,   c + 1   from t1;
+insert into t1 select a + 2,   b + 2,   c + 2   from t1;
+insert into t1 select a + 4,   b + 4,   c + 4   from t1;
+insert into t1 select a + 8,   b + 8,   c + 8   from t1;
+insert into t1 select a + 16,  b + 16,  c + 16  from t1;
+insert into t1 select a + 32,  b + 32,  c + 32  from t1;
+insert into t1 select a + 64,  b + 64,  c + 64  from t1;
+insert into t1 select a + 128, b + 128, c + 128 from t1;
+insert into t1 select a + 256, b + 256, c + 256 from t1;
+insert into t1 select a + 512, b + 512, c + 512 from t1;
+flush tables;
+select a from t1 where a is null order by a limit 30;
+a
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+select b from t1 where b is null order by b limit 30;
+b
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+
+direct_order_limit
+TRUNCATE TABLE t1;
+insert into t1 values ('1', '1', '1');
+insert into t1 select a + 1,   b + 1,   c + 1   from t1;
+insert into t1 select a + 2,   b + 2,   c + 2   from t1;
+insert into t1 select a + 4,   b + 4,   c + 4   from t1;
+insert into t1 select a + 8,   b + 8,   c + 8   from t1;
+insert into t1 select a + 16,  b + 16,  c + 16  from t1;
+insert into t1 select a,       b + 32,  c + 32  from t1;
+insert into t1 select a,       b + 64,  c + 64  from t1;
+insert into t1 select a,       b + 128, c + 128 from t1;
+flush tables;
+select a, b, c from t1 where a = '10' and b <> '100' order by c desc limit 5;
+a	b	c
+10	74	74
+10	42	42
+10	234	234
+10	202	202
+10	170	170
+select a, c from t1 where a = '10' order by b desc limit 5;
+a	c
+10	74
+10	42
+10	234
+10	202
+10	170
+
+deinit
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for slave1_1
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/oracle/r/spider_fixes_part.result b/storage/spider/mysql-test/spider/oracle/r/spider_fixes_part.result
new file mode 100644
index 00000000..9abe8558
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/r/spider_fixes_part.result
@@ -0,0 +1,199 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for slave1_1
+
+drop and create databases
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+SELECT 1;
+1
+1
+DROP TABLE IF EXISTS tb_l;
+CREATE TABLE tb_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+INSERT INTO tb_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+2.17
+partition with sort
+CREATE TABLE ta_l2 (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1
+INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 WHERE a > 1
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+2.23
+partition update with moving partition
+DROP TABLE IF EXISTS ta_l2;
+CREATE TABLE ta_l2 (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1
+INSERT INTO ta_l2 (a, b, c) VALUES (3, 'B', '2010-09-26 00:00:00');
+UPDATE ta_l2 SET a = 4 WHERE a = 3;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+4	B	2010-09-26 00:00:00
+index merge with partition
+DROP TABLE IF EXISTS ta_l_int;
+CREATE TABLE ta_l_int (
+a INT AUTO_INCREMENT,
+b INT DEFAULT 10,
+c INT DEFAULT 11,
+PRIMARY KEY(a),
+KEY idx1(b),
+KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT3_P_2_1
+INSERT INTO ta_l_int (a, b, c) VALUES (1, 2, 3);
+INSERT INTO ta_l_int (a, b, c) SELECT a + 1, b + 1, c + 1 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 2, b + 2, c + 2 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 4, b + 4, c + 4 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 8, b + 8, c + 8 FROM ta_l_int;
+SELECT a, b, c FROM ta_l_int force index(primary, idx1, idx2)
+WHERE a = 5 OR b = 5 OR c = 5 ORDER BY a;
+a	b	c
+3	4	5
+4	5	6
+5	6	7
+
+2.26
+auto_increment with partition
+DROP TABLE IF EXISTS t1;
+CREATE TABLE t1 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_P_1
+MASTER_1_AUTO_INCREMENT_INCREMENT2
+MASTER_1_AUTO_INCREMENT_OFFSET2
+spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_1"\'; exception when others then null; end;', '', 'srv "s_2_1"')
+1
+spider_direct_sql('CREATE SEQUENCE "seq_t1_1" START WITH 2 INCREMENT BY 4', '', 'srv "s_2_1"')
+1
+spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_2"\'; exception when others then null; end;', '', 'srv "s_2_2"')
+1
+spider_direct_sql('CREATE SEQUENCE "seq_t1_2" START WITH 3 INCREMENT BY 4', '', 'srv "s_2_2"')
+1
+spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_1"\'; exception when others then null; end;', '', 'srv "s_2_1"')
+1
+spider_direct_sql('CREATE SEQUENCE "seq_t1_1" START WITH 2 INCREMENT BY 4', '', 'srv "s_2_1"')
+1
+spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_2"\'; exception when others then null; end;', '', 'srv "s_2_2"')
+1
+spider_direct_sql('CREATE SEQUENCE "seq_t1_2" START WITH 3 INCREMENT BY 4', '', 'srv "s_2_2"')
+1
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+777
+SELECT MAX(id) FROM t1;
+MAX(id)
+777
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+1554
+SELECT MAX(id) FROM t1;
+MAX(id)
+1554
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+2331
+SELECT MAX(id) FROM t1;
+MAX(id)
+2331
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+3108
+SELECT MAX(id) FROM t1;
+MAX(id)
+3108
+INSERT INTO t1 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+3885
+SELECT id FROM t1 ORDER BY id;
+id
+777
+1554
+2331
+3108
+3885
+4662
+5439
+6216
+SET INSERT_ID=5000;
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+5000
+SELECT MAX(id) FROM t1;
+MAX(id)
+6216
+INSERT INTO t1 (id) VALUES (10000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+5000
+SELECT MAX(id) FROM t1;
+MAX(id)
+10000
+INSERT INTO t1 (id) VALUES (1000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+5000
+SELECT MAX(id) FROM t1;
+MAX(id)
+10000
+
+deinit
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for slave1_1
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/oracle/r/vp_fixes.result b/storage/spider/mysql-test/spider/oracle/r/vp_fixes.result
new file mode 100644
index 00000000..15dd29aa
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/r/vp_fixes.result
@@ -0,0 +1,80 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+SELECT 1;
+1
+1
+
+create table and insert
+DROP TABLE IF EXISTS tb_l;
+CREATE TABLE tb_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+INSERT INTO tb_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+
+0.9
+create different primary key table
+CREATE TABLE ta_l_int (
+a INT DEFAULT 10,
+b INT AUTO_INCREMENT,
+c INT DEFAULT 11,
+PRIMARY KEY(b)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1
+INSERT INTO ta_l_int (a, b, c) VALUES (2, NULL, 3);
+create un-correspond primary key table
+DROP TABLE IF EXISTS ta_l_int;
+CREATE TABLE ta_l_int (
+a INT DEFAULT 10,
+b INT DEFAULT 12,
+c INT DEFAULT 11,
+PRIMARY KEY(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1
+INSERT INTO ta_l_int (a, b, c) VALUES (2, NULL, 3);
+
+deinit
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/oracle/t/basic_sql.test b/storage/spider/mysql-test/spider/oracle/t/basic_sql.test
new file mode 100644
index 00000000..5bb04004
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/basic_sql.test
@@ -0,0 +1,2699 @@
+# This test tests by executing basic SQL
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tb_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+eval CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+--enable_query_log
+INSERT INTO tb_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+SELECT a, b, c FROM tb_l;
+if ($MASTER_1_MERGE)
+{
+  --error ER_WRONG_OBJECT
+  eval CREATE TABLE ta_l (
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1
+  SELECT a, b, c FROM tb_l;
+  eval CREATE TABLE ta_l (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+  INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+}
+if (!$MASTER_1_MERGE)
+{
+  eval CREATE TABLE ta_l (
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1
+  SELECT a, b, c FROM tb_l;
+}
+--enable_query_log
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo create table ignore select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+DROP TABLE IF EXISTS tb_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+eval CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+--enable_query_log
+INSERT INTO tb_l (a, b, c) VALUES
+  (1, 'f', '2008-07-01 10:21:39'),
+  (2, 'g', '2000-02-01 00:00:00'),
+  (3, 'j', '2007-05-04 20:03:11'),
+  (4, 'i', '2003-10-30 05:01:03'),
+  (5, 'h', '2001-10-31 23:59:59');
+--disable_query_log
+echo CREATE TABLE ta_l (
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+IGNORE SELECT a, b, c FROM tb_l;
+if ($MASTER_1_MERGE)
+{
+  --error ER_WRONG_OBJECT
+  eval CREATE TABLE ta_l (
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1
+  IGNORE SELECT a, b, c FROM tb_l;
+  eval CREATE TABLE ta_l (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+  INSERT IGNORE INTO ta_l SELECT a, b, c FROM tb_l;
+}
+if (!$MASTER_1_MERGE)
+{
+  eval CREATE TABLE ta_l (
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1
+  IGNORE SELECT a, b, c FROM tb_l;
+}
+--enable_query_log
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo create table ignore select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+REPLACE SELECT a, b, c FROM tb_l;
+if ($MASTER_1_MERGE)
+{
+  --error ER_WRONG_OBJECT
+  eval CREATE TABLE ta_l (
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1
+  REPLACE SELECT a, b, c FROM tb_l;
+  eval CREATE TABLE ta_l (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+  REPLACE INTO ta_l SELECT a, b, c FROM tb_l;
+}
+if (!$MASTER_1_MERGE)
+{
+  eval CREATE TABLE ta_l (
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1
+  REPLACE SELECT a, b, c FROM tb_l;
+}
+--enable_query_log
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%replace %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo create no index table
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES3;
+    echo CHILD2_1_CREATE_TABLES3;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES3;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES3;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l_no_idx;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l_no_idx
+MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT2_2_1
+SELECT a, b, c FROM tb_l;
+if ($MASTER_1_NEEDPK)
+{
+  --error ER_REQUIRES_PRIMARY_KEY
+  eval CREATE TABLE ta_l_no_idx
+  $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT2_2_1
+  SELECT a, b, c FROM tb_l;
+  eval CREATE TABLE ta_l_no_idx (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT2_2_1;
+  INSERT INTO ta_l_no_idx SELECT a, b, c FROM tb_l;
+}
+if (!$MASTER_1_NEEDPK)
+{
+  if ($MASTER_1_MERGE)
+  {
+    --error ER_WRONG_OBJECT
+    eval CREATE TABLE ta_l_no_idx
+    $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT2_2_1
+    SELECT a, b, c FROM tb_l;
+    eval CREATE TABLE ta_l_no_idx (
+      a INT,
+      b CHAR(1),
+      c DATETIME
+    ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT2_2_1;
+    INSERT INTO ta_l_no_idx SELECT a, b, c FROM tb_l;
+  }
+  if (!$MASTER_1_MERGE)
+  {
+    eval CREATE TABLE ta_l_no_idx
+    $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT2_2_1
+    SELECT a, b, c FROM tb_l;
+  }
+}
+--enable_query_log
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES3;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l_no_idx ORDER BY a;
+
+--echo
+--echo select table
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select table shared mode
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a
+LOCK IN SHARE MODE;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select table for update
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a
+FOR UPDATE;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select table join
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a.a, a.b, date_format(b.c, '%Y-%m-%d %H:%i:%s') FROM ta_l a, tb_l b
+WHERE a.a = b.a ORDER BY a.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select table straight_join
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT STRAIGHT_JOIN a.a, a.b, date_format(b.c, '%Y-%m-%d %H:%i:%s')
+FROM ta_l a, tb_l b WHERE a.a = b.a ORDER BY a.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select sql_small_result
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT SQL_SMALL_RESULT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select sql_big_result
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT SQL_BIG_RESULT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select sql_buffer_result
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT SQL_BUFFER_RESULT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select sql_cache
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT SQL_CACHE a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select sql_no_cache
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT SQL_NO_CACHE a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select sql_calc_found_rows
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT SQL_CALC_FOUND_ROWS a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a LIMIT 4;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT found_rows();
+
+--echo
+--echo select high_priority
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT HIGH_PRIORITY a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select distinct
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT DISTINCT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select count
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT count(*) FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select table join not use index
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM tb_l a WHERE
+EXISTS (SELECT * FROM ta_l b WHERE b.b = a.b) ORDER BY a.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select using pushdown
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l a WHERE
+a.b = 'g' ORDER BY a.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select using index and pushdown
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l a WHERE
+a.a > 0 AND a.b = 'g' ORDER BY a.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo insert
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert select
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT INTO ta_l (a, b, c) SELECT a, b, c FROM tb_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert select a
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT INTO ta_l (a, b, c) VALUES ((SELECT a FROM tb_l ORDER BY a LIMIT 1),
+'e', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert low_priority
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT LOW_PRIORITY INTO ta_l (a, b, c) values (2, 'e', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert high_priority
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT HIGH_PRIORITY INTO ta_l (a, b, c) VALUES (2, 'e',
+'2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert ignore
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT IGNORE INTO ta_l (a, b, c) VALUES (2, 'd', '2009-02-02 01:01:01');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert update (insert)
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59') ON DUPLICATE
+KEY UPDATE b = 'f', c = '2005-08-08 11:11:11';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%update %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert update (update)
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59') ON DUPLICATE
+KEY UPDATE b = 'f', c = '2005-08-08 11:11:11';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%update %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo replace
+--connection master_1
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+REPLACE INTO ta_l (a, b, c) VALUES (2, 'f', '2008-02-02 02:02:02');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'replace %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo replace select
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+REPLACE INTO ta_l (a, b, c) SELECT a, b, c FROM tb_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'replace %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo replace select a
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+REPLACE INTO ta_l (a, b, c) VALUES ((SELECT a FROM tb_l ORDER BY a LIMIT 1),
+'e', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'replace %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo replace low_priority
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+REPLACE LOW_PRIORITY INTO ta_l (a, b, c) VALUES (3, 'g',
+'2009-03-03 03:03:03');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'replace %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l SET b = 'f', c = '2008-02-02 02:02:02' WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update select
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l SET b = 'g', c = '2009-03-03 03:03:03' WHERE a IN (SELECT a FROM
+tb_l);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update select a
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l SET b = 'h', c = '2010-04-04 04:04:04' WHERE a = (SELECT a FROM
+tb_l ORDER BY a LIMIT 1);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update join
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l a, tb_l b SET a.b = b.b, a.c = b.c WHERE a.a = b.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update join a
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l a, tb_l b SET a.b = 'g', a.c = '2009-03-03 03:03:03' WHERE
+a.a = b.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update low_priority
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE LOW_PRIORITY ta_l SET b = 'f', c = '2008-02-02 02:02:02' WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update ignore
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE IGNORE ta_l SET a = 1, b = 'g', c = '2009-03-03 03:03:03' WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update pushdown
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+update ta_l set b = 'j', c = '2009-03-03 03:03:03' where b = 'f';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update index pushdown
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l SET b = 'g', c = '2009-03-03 03:03:03' WHERE a > 0 AND b = 'j';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE FROM ta_l WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete all
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE FROM ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete select
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE FROM ta_l WHERE a IN (SELECT a FROM tb_l);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete select a
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE FROM ta_l WHERE a = (SELECT a FROM tb_l ORDER BY a LIMIT 1);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete join
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE a FROM ta_l a, (SELECT a FROM tb_l ORDER BY a) b WHERE a.a = b.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete low_priority
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE LOW_PRIORITY FROM ta_l WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete ignore
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE IGNORE FROM ta_l WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete quick
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE QUICK FROM ta_l WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete pushdown
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE FROM ta_l WHERE b = 'e';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete index pushdown
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE FROM ta_l WHERE a > 0 AND b = 'e';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo truncate
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'truncate %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/oracle/t/basic_sql_part.test b/storage/spider/mysql-test/spider/oracle/t/basic_sql_part.test
new file mode 100644
index 00000000..e1638642
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/basic_sql_part.test
@@ -0,0 +1,571 @@
+# This test tests by executing basic SQL
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+if (!$HAVE_PARTITION)
+{
+  --disable_query_log
+  --disable_result_log
+  --source test_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tb_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+eval CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+--enable_query_log
+INSERT INTO tb_l (a, b, c) VALUES
+  (1, 'f', '2008-07-01 10:21:39'),
+  (2, 'g', '2000-02-01 00:00:00'),
+  (3, 'j', '2007-05-04 20:03:11'),
+  (4, 'i', '2003-10-30 05:01:03'),
+  (5, 'h', '2001-10-31 23:59:59');
+
+--echo
+--echo create table with partition and select test
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_COMMENT_P_2_1
+  SELECT a, b, c FROM tb_l;
+  if ($MASTER_1_MERGE)
+  {
+    --error ER_WRONG_OBJECT
+    eval CREATE TABLE ta_l2 (
+      PRIMARY KEY(a)
+    ) $MASTER_1_ENGINE $MASTER_1_COMMENT_P_2_1
+    SELECT a, b, c FROM tb_l;
+    eval CREATE TABLE ta_l2 (
+      a INT,
+      b CHAR(1),
+      c DATETIME,
+      PRIMARY KEY(a)
+    ) $MASTER_1_ENGINE $MASTER_1_COMMENT_P_2_1;
+    INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+  }
+  if (!$MASTER_1_MERGE)
+  {
+    eval CREATE TABLE ta_l2 (
+      PRIMARY KEY(a)
+    ) $MASTER_1_ENGINE $MASTER_1_COMMENT_P_2_1
+    SELECT a, b, c FROM tb_l;
+  }
+  --enable_query_log
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+}
+
+--echo
+--echo select partition using pushdown
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 a WHERE
+  a.b = 'g' ORDER BY a.a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo
+--echo select partition using index pushdown
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 a WHERE
+  a.a > 0 AND a.b = 'g' ORDER BY a.a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo
+--echo update partition pushdown
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  UPDATE ta_l2 SET b = 'e', c = '2009-03-03 03:03:03' WHERE b = 'j';
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+}
+
+--echo
+--echo update partition index pushdown
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  UPDATE ta_l2 SET b = 'j', c = '2009-03-03 03:03:03' WHERE a > 0 AND b = 'e';
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+}
+
+--echo
+--echo delete partition pushdown
+if ($HAVE_PARTITION)
+{
+  TRUNCATE TABLE ta_l2;
+  INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  DELETE FROM ta_l2 WHERE b = 'g';
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+}
+
+--echo
+--echo delete partition index pushdown
+if ($HAVE_PARTITION)
+{
+  TRUNCATE TABLE ta_l2;
+  INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  DELETE FROM ta_l2 WHERE a > 0 AND b = 'g';
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/oracle/t/connect_child2_1.inc b/storage/spider/mysql-test/spider/oracle/t/connect_child2_1.inc
new file mode 100644
index 00000000..cd9b0c9c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/connect_child2_1.inc
@@ -0,0 +1 @@
+--connect (child2_1, localhost, root, , , $CHILD2_1_MYPORT, $CHILD2_1_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/oracle/t/connect_child2_2.inc b/storage/spider/mysql-test/spider/oracle/t/connect_child2_2.inc
new file mode 100644
index 00000000..e145f66b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/connect_child2_2.inc
@@ -0,0 +1 @@
+--connect (child2_2, localhost, root, , , $CHILD2_2_MYPORT, $CHILD2_2_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/oracle/t/connect_child2_3.inc b/storage/spider/mysql-test/spider/oracle/t/connect_child2_3.inc
new file mode 100644
index 00000000..d356348d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/connect_child2_3.inc
@@ -0,0 +1 @@
+--connect (child2_3, localhost, root, , , $CHILD2_3_MYPORT, $CHILD2_3_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/oracle/t/connect_child3_1.inc b/storage/spider/mysql-test/spider/oracle/t/connect_child3_1.inc
new file mode 100644
index 00000000..03e5c188
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/connect_child3_1.inc
@@ -0,0 +1 @@
+--connect (child3_1, localhost, root, , , $CHILD3_1_MYPORT, $CHILD3_1_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/oracle/t/connect_child3_2.inc b/storage/spider/mysql-test/spider/oracle/t/connect_child3_2.inc
new file mode 100644
index 00000000..d62a7ada
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/connect_child3_2.inc
@@ -0,0 +1 @@
+--connect (child3_2, localhost, root, , , $CHILD3_2_MYPORT, $CHILD3_2_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/oracle/t/connect_child3_3.inc b/storage/spider/mysql-test/spider/oracle/t/connect_child3_3.inc
new file mode 100644
index 00000000..fb49f5bf
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/connect_child3_3.inc
@@ -0,0 +1 @@
+--connect (child3_3, localhost, root, , , $CHILD3_3_MYPORT, $CHILD3_3_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/oracle/t/connect_master_1.inc b/storage/spider/mysql-test/spider/oracle/t/connect_master_1.inc
new file mode 100644
index 00000000..0c129ce5
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/connect_master_1.inc
@@ -0,0 +1 @@
+--connect (master_1, localhost, root, , , $MASTER_1_MYPORT, $MASTER_1_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/oracle/t/connect_slave1_1.inc b/storage/spider/mysql-test/spider/oracle/t/connect_slave1_1.inc
new file mode 100644
index 00000000..45a82274
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/connect_slave1_1.inc
@@ -0,0 +1 @@
+--connect (slave1_1, localhost, root, , , $SLAVE1_1_MYPORT, $SLAVE1_1_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/oracle/t/direct_aggregate.test b/storage/spider/mysql-test/spider/oracle/t/direct_aggregate.test
new file mode 100644
index 00000000..d65f4c5a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/direct_aggregate.test
@@ -0,0 +1,179 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO ta_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+
+--echo
+--echo direct_aggregating test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+SELECT COUNT(*) FROM ta_l;
+eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+SELECT MAX(a) FROM ta_l;
+eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+SELECT MIN(a) FROM ta_l;
+eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+SELECT MAX(a) FROM ta_l WHERE a < 5;
+eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+SELECT MIN(a) FROM ta_l WHERE a > 1;
+eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%handler %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/oracle/t/direct_aggregate_part.test b/storage/spider/mysql-test/spider/oracle/t/direct_aggregate_part.test
new file mode 100644
index 00000000..aebf210c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/direct_aggregate_part.test
@@ -0,0 +1,192 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+if (!$HAVE_PARTITION)
+{
+  --disable_query_log
+  --disable_result_log
+  --source test_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo with partition test
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1;
+  eval CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_COMMENT2_P_2_1;
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (1, 'a', '2008-08-01 10:21:39'),
+    (2, 'b', '2000-01-01 00:00:00'),
+    (3, 'e', '2007-06-04 20:03:11'),
+    (4, 'd', '2003-11-30 05:01:03'),
+    (5, 'c', '2001-12-31 23:59:59');
+  --enable_query_log
+  eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+  SELECT COUNT(*) FROM ta_l2;
+  eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+  SELECT MAX(a) FROM ta_l2;
+  eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+  SELECT MIN(a) FROM ta_l2;
+  eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+  SELECT MAX(a) FROM ta_l2 WHERE a < 5;
+  eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+  SELECT MIN(a) FROM ta_l2 WHERE a > 1;
+  eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%handler %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%handler %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/oracle/t/direct_update.test b/storage/spider/mysql-test/spider/oracle/t/direct_update.test
new file mode 100644
index 00000000..e0901062
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/direct_update.test
@@ -0,0 +1,198 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO ta_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+
+--echo
+--echo direct_updating test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo update all rows with function
+UPDATE ta_l SET c = ADDDATE(c, 1);
+eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo update by primary key
+UPDATE ta_l SET b = 'x' WHERE a = 3;
+eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo update by a column without index
+UPDATE ta_l SET c = '2011-10-17' WHERE b = 'x';
+eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo update by primary key with order and limit
+UPDATE ta_l SET c = ADDDATE(c, 1) WHERE a < 4 ORDER BY b DESC LIMIT 1;
+eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo delete by primary key with order and limit
+DELETE FROM ta_l WHERE a < 4 ORDER BY c LIMIT 1;
+eval $MASTER_1_CHECK_DIRECT_DELETE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo delete by a column without index
+DELETE FROM ta_l WHERE b = 'c';
+eval $MASTER_1_CHECK_DIRECT_DELETE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo delete by primary key
+DELETE FROM ta_l WHERE a = 3;
+eval $MASTER_1_CHECK_DIRECT_DELETE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%handler %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/oracle/t/direct_update_part.test b/storage/spider/mysql-test/spider/oracle/t/direct_update_part.test
new file mode 100644
index 00000000..95e2e2ab
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/direct_update_part.test
@@ -0,0 +1,211 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+if (!$HAVE_PARTITION)
+{
+  --disable_query_log
+  --disable_result_log
+  --source test_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo with partition test
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1;
+  eval CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_COMMENT2_P_2_1;
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (1, 'a', '2008-08-01 10:21:39'),
+    (2, 'b', '2000-01-01 00:00:00'),
+    (3, 'e', '2007-06-04 20:03:11'),
+    (4, 'd', '2003-11-30 05:01:03'),
+    (5, 'c', '2001-12-31 23:59:59');
+  --enable_query_log
+  eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo update all rows with function
+  UPDATE ta_l2 SET c = ADDDATE(c, 1);
+  eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo update by primary key
+  UPDATE ta_l2 SET b = 'x' WHERE a = 3;
+  eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo update by a column without index
+  UPDATE ta_l2 SET c = '2011-10-17' WHERE b = 'x';
+  eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo update by primary key with order and limit
+  UPDATE ta_l2 SET c = ADDDATE(c, 1) WHERE a < 4 ORDER BY b DESC LIMIT 1;
+  eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo delete by primary key with order and limit
+  DELETE FROM ta_l2 WHERE a < 4 ORDER BY c LIMIT 1;
+  eval $MASTER_1_CHECK_DIRECT_DELETE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo delete by a column without index
+  DELETE FROM ta_l2 WHERE b = 'c';
+  eval $MASTER_1_CHECK_DIRECT_DELETE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo delete by primary key
+  DELETE FROM ta_l2 WHERE a = 3;
+  eval $MASTER_1_CHECK_DIRECT_DELETE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%handler %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%handler %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/oracle/t/function.test b/storage/spider/mysql-test/spider/oracle/t/function.test
new file mode 100644
index 00000000..ec2eeab9
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/function.test
@@ -0,0 +1,253 @@
+# This test tests for using functions
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo in()
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_result_log
+  }
+  --disable_query_log
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    echo CHILD2_1_DROP_TEXT_PK_TABLES1;
+    echo CHILD2_1_CREATE_TEXT_PK_TABLES1;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TEXT_PK_TABLES1;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TEXT_PK_TABLES1;
+  --enable_query_log
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_query_log
+echo CREATE TABLE t1 (
+  a VARCHAR(255),
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET3 MASTER_1_COMMENT_TEXT_PK1_1;
+eval CREATE TABLE t1 (
+  a VARCHAR(255),
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET3 $MASTER_1_COMMENT_TEXT_PK1_1;
+--enable_query_log
+insert into t1 values ('1');
+insert into t1 select a + 1 from t1;
+insert into t1 select a + 2 from t1;
+insert into t1 select a + 4 from t1;
+insert into t1 select a + 8 from t1;
+insert into t1 select a + 16 from t1;
+insert into t1 select a + 32 from t1;
+insert into t1 select a + 64 from t1;
+insert into t1 select a + 128 from t1;
+insert into t1 select a + 256 from t1;
+insert into t1 select a + 512 from t1;
+flush tables;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+select a from t1 where a in ('15', '120');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TEXT_PK_TABLES1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo date_sub()
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO ta_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 YEAR);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 QUARTER);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 MONTH);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 WEEK);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 DAY);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 HOUR);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 MINUTE);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 SECOND);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/oracle/t/ha.test b/storage/spider/mysql-test/spider/oracle/t/ha.test
new file mode 100644
index 00000000..c12930e4
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/ha.test
@@ -0,0 +1,878 @@
+# This test tests for ha features
+if ($USE_HA_TEST)
+{
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--source ha_test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+  --connection child2_3
+  DROP DATABASE IF EXISTS auto_test_remote3;
+  CREATE DATABASE auto_test_remote3;
+  USE auto_test_remote3;
+}
+if ($USE_CHILD_GROUP3)
+{
+  --connection child3_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+  --connection child3_2
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+  --connection child3_3
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  --connection child2_3
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  SELECT 1;
+  --connection child3_2
+  SELECT 1;
+  --connection child3_3
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_2_DROP_TABLES;
+    echo CHILD2_2_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_2_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_2_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  --disable_warnings
+  eval $CHILD3_1_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  eval $CHILD3_1_CREATE_TABLES_HA_2_1;
+  --connection child3_2
+  --disable_warnings
+  eval $CHILD3_2_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  eval $CHILD3_2_CREATE_TABLES_HA_2_1;
+  --connection child3_3
+  --disable_warnings
+  eval $CHILD3_3_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  eval $CHILD3_3_CREATE_TABLES_HA_2_1;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_HA_2_1;
+--enable_query_log
+INSERT INTO ta_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+
+--echo
+--echo select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo fail-over test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_2_HA_DROP_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_2_HA_DROP_TABLES;
+  --enable_warnings
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_CHECK_HA_STATUS;
+--error 12511
+INSERT INTO ta_l (a, b, c) VALUES
+  (6, 'e', '2011-05-05 20:04:05');
+eval $MASTER_1_CHECK_LINK_STATUS;
+eval $MASTER_1_CHECK_LINK_FAILED_LOG;
+eval $MASTER_1_CHECK_HA_STATUS;
+INSERT INTO ta_l (a, b, c) VALUES
+  (6, 'e', '2011-05-05 20:04:05');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  eval $CHILD3_1_CHECK_LINK_STATUS;
+  eval $CHILD3_1_CHECK_LINK_FAILED_LOG;
+  --connection child3_2
+  eval $CHILD3_2_CHECK_LINK_STATUS;
+  eval $CHILD3_2_CHECK_LINK_FAILED_LOG;
+  --connection child3_3
+  eval $CHILD3_3_CHECK_LINK_STATUS;
+  eval $CHILD3_3_CHECK_LINK_FAILED_LOG;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo recovery test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_2_HA_CREATE_TABLES;
+  }
+  eval $CHILD2_2_HA_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  eval $CHILD3_1_SET_RECOVERY_STATUS_2_1;
+  eval $CHILD3_1_CHECK_LINK_STATUS;
+  --connection child3_2
+  eval $CHILD3_2_SET_RECOVERY_STATUS_2_1;
+  eval $CHILD3_2_CHECK_LINK_STATUS;
+  --connection child3_3
+  eval $CHILD3_3_SET_RECOVERY_STATUS_2_1;
+  eval $CHILD3_3_CHECK_LINK_STATUS;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_SET_RECOVERY_STATUS_2_1;
+eval $MASTER_1_CHECK_LINK_STATUS;
+eval $MASTER_1_COPY_TABLES_2_1;
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  eval $CHILD3_1_SET_OK_STATUS_2_1;
+  eval $CHILD3_1_CHECK_LINK_STATUS;
+  --connection child3_2
+  eval $CHILD3_2_SET_OK_STATUS_2_1;
+  eval $CHILD3_2_CHECK_LINK_STATUS;
+  --connection child3_3
+  eval $CHILD3_3_SET_OK_STATUS_2_1;
+  eval $CHILD3_3_CHECK_LINK_STATUS;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_SET_OK_STATUS_2_1;
+eval $MASTER_1_CHECK_LINK_STATUS;
+INSERT INTO ta_l (a, b, c) VALUES
+  (8, 'g', '2011-05-05 21:33:30');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+DROP TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  --disable_warnings
+  eval $CHILD3_1_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  --connection child3_2
+  --disable_warnings
+  eval $CHILD3_2_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  --connection child3_3
+  --disable_warnings
+  eval $CHILD3_3_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+eval $MASTER_1_CHANGE_HA_MON;
+
+--echo
+--echo active standby test
+--echo create table test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_2_DROP_TABLES;
+    echo CHILD2_2_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_2_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_2_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  --disable_warnings
+  eval $CHILD3_1_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  eval $CHILD3_1_CREATE_TABLES_HA_AS_2_1;
+  --connection child3_2
+  --disable_warnings
+  eval $CHILD3_2_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  eval $CHILD3_2_CREATE_TABLES_HA_AS_2_1;
+  --connection child3_3
+  --disable_warnings
+  eval $CHILD3_3_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  eval $CHILD3_3_CREATE_TABLES_HA_AS_2_1;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_AS_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_HA_AS_2_1;
+--enable_query_log
+INSERT INTO ta_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+
+--echo
+--echo select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo fail-over test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_HA_AS_DROP_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_HA_AS_DROP_TABLES;
+  --enable_warnings
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_CHECK_HA_STATUS;
+--error 12511
+INSERT INTO ta_l (a, b, c) VALUES
+  (6, 'e', '2011-05-05 20:04:05');
+eval $MASTER_1_CHECK_LINK_STATUS;
+eval $MASTER_1_CHECK_LINK_FAILED_LOG;
+eval $MASTER_1_CHECK_HA_STATUS;
+INSERT INTO ta_l (a, b, c) VALUES
+  (6, 'e', '2011-05-05 20:04:05');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  eval $CHILD3_1_CHECK_LINK_STATUS;
+  eval $CHILD3_1_CHECK_LINK_FAILED_LOG;
+  --connection child3_2
+  eval $CHILD3_2_CHECK_LINK_STATUS;
+  eval $CHILD3_2_CHECK_LINK_FAILED_LOG;
+  --connection child3_3
+  eval $CHILD3_3_CHECK_LINK_STATUS;
+  eval $CHILD3_3_CHECK_LINK_FAILED_LOG;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo recovery test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_HA_AS_CREATE_TABLES;
+  }
+  eval $CHILD2_1_HA_AS_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  eval $CHILD3_1_SET_OK_STATUS_AS_2_1;
+  eval $CHILD3_1_CHECK_LINK_STATUS;
+  --connection child3_2
+  eval $CHILD3_2_SET_OK_STATUS_AS_2_1;
+  eval $CHILD3_2_CHECK_LINK_STATUS;
+  --connection child3_3
+  eval $CHILD3_3_SET_OK_STATUS_AS_2_1;
+  eval $CHILD3_3_CHECK_LINK_STATUS;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_SET_OK_STATUS_AS_2_1;
+eval $MASTER_1_CHECK_LINK_STATUS;
+INSERT INTO ta_l (a, b, c) VALUES
+  (8, 'g', '2011-05-05 21:33:30');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+DROP TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  --disable_warnings
+  eval $CHILD3_1_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  --connection child3_2
+  --disable_warnings
+  eval $CHILD3_2_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  --connection child3_3
+  --disable_warnings
+  eval $CHILD3_3_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+eval $MASTER_1_CHANGE_HA_MON;
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  --connection child2_3
+  DROP DATABASE IF EXISTS auto_test_remote3;
+}
+if ($USE_CHILD_GROUP3)
+{
+  --connection child3_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  --connection child3_2
+  DROP DATABASE IF EXISTS auto_test_local;
+  --connection child3_3
+  DROP DATABASE IF EXISTS auto_test_local;
+}
+--disable_query_log
+--disable_result_log
+--source ha_test_deinit.inc
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+}
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/oracle/t/ha_part.test b/storage/spider/mysql-test/spider/oracle/t/ha_part.test
new file mode 100644
index 00000000..72ddcfd1
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/ha_part.test
@@ -0,0 +1,1017 @@
+# This test tests for ha features
+if ($USE_HA_TEST)
+{
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--source ha_test_init.inc
+--enable_result_log
+--enable_query_log
+if (!$HAVE_PARTITION)
+{
+  --disable_query_log
+  --disable_result_log
+  --source ha_test_deinit.inc
+  --source test_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+  --connection child2_3
+  DROP DATABASE IF EXISTS auto_test_remote3;
+  CREATE DATABASE auto_test_remote3;
+  USE auto_test_remote3;
+}
+if ($USE_CHILD_GROUP3)
+{
+  --connection child3_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+  --connection child3_2
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+  --connection child3_3
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  --connection child2_3
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  SELECT 1;
+  --connection child3_2
+  SELECT 1;
+  --connection child3_3
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+if ($HAVE_PARTITION)
+{
+  --echo
+  --echo create table with partition test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES;
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES;
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES;
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_3_DROP_TABLES;
+      echo CHILD2_3_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_3_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_3_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    --disable_warnings
+    eval $CHILD3_1_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    eval $CHILD3_1_CREATE_TABLES_HA_P_2_1;
+    --connection child3_2
+    --disable_warnings
+    eval $CHILD3_2_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    eval $CHILD3_2_CREATE_TABLES_HA_P_2_1;
+    --connection child3_3
+    --disable_warnings
+    eval $CHILD3_3_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    eval $CHILD3_3_CREATE_TABLES_HA_P_2_1;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_warnings
+  DROP TABLE IF EXISTS ta_l2;
+  --enable_warnings
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_P_2_1;
+  eval CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_HA_P_2_1;
+  --enable_query_log
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (1, 'a', '2008-08-01 10:21:39'),
+    (2, 'b', '2000-01-01 00:00:00'),
+    (3, 'e', '2007-06-04 20:03:11'),
+    (4, 'd', '2003-11-30 05:01:03'),
+    (5, 'c', '2001-12-31 23:59:59');
+
+  --echo
+  --echo select test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    eval $CHILD2_1_SELECT_TABLES2;
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_3_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+
+  --echo
+  --echo fail-over test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_3_HA_DROP_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_3_HA_DROP_TABLES;
+    --enable_warnings
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  eval $MASTER_1_CHECK_HA_STATUS;
+  --error 12511
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (6, 'e', '2011-05-05 20:04:05');
+  eval $MASTER_1_CHECK_LINK_STATUS;
+  eval $MASTER_1_CHECK_LINK_FAILED_LOG;
+  eval $MASTER_1_CHECK_HA_STATUS;
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (6, 'e', '2011-05-05 20:04:05');
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    eval $CHILD2_1_SELECT_TABLES2;
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    eval $CHILD3_1_CHECK_LINK_STATUS;
+    eval $CHILD3_1_CHECK_LINK_FAILED_LOG;
+    --connection child3_2
+    eval $CHILD3_2_CHECK_LINK_STATUS;
+    eval $CHILD3_2_CHECK_LINK_FAILED_LOG;
+    --connection child3_3
+    eval $CHILD3_3_CHECK_LINK_STATUS;
+    eval $CHILD3_3_CHECK_LINK_FAILED_LOG;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+
+  --echo
+  --echo recovery test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_3_HA_CREATE_TABLES;
+    }
+    eval $CHILD2_3_HA_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    eval $CHILD3_1_SET_RECOVERY_STATUS_P_2_1;
+    eval $CHILD3_1_CHECK_LINK_STATUS;
+    --connection child3_2
+    eval $CHILD3_2_SET_RECOVERY_STATUS_P_2_1;
+    eval $CHILD3_2_CHECK_LINK_STATUS;
+    --connection child3_3
+    eval $CHILD3_3_SET_RECOVERY_STATUS_P_2_1;
+    eval $CHILD3_3_CHECK_LINK_STATUS;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  eval $MASTER_1_SET_RECOVERY_STATUS_P_2_1;
+  eval $MASTER_1_CHECK_LINK_STATUS;
+  eval $MASTER_1_COPY_TABLES_P_2_1;
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    eval $CHILD3_1_SET_OK_STATUS_P_2_1;
+    eval $CHILD3_1_CHECK_LINK_STATUS;
+    --connection child3_2
+    eval $CHILD3_2_SET_OK_STATUS_P_2_1;
+    eval $CHILD3_2_CHECK_LINK_STATUS;
+    --connection child3_3
+    eval $CHILD3_3_SET_OK_STATUS_P_2_1;
+    eval $CHILD3_3_CHECK_LINK_STATUS;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  eval $MASTER_1_SET_OK_STATUS_P_2_1;
+  eval $MASTER_1_CHECK_LINK_STATUS;
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (8, 'g', '2011-05-05 21:33:30'),
+    (9, 'h', '2011-05-05 22:32:10');
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  DROP TABLE ta_l2;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    eval $CHILD2_1_SELECT_TABLES2;
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_3_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    --disable_warnings
+    eval $CHILD3_1_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    --connection child3_2
+    --disable_warnings
+    eval $CHILD3_2_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    --connection child3_3
+    --disable_warnings
+    eval $CHILD3_3_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+if ($HAVE_PARTITION)
+{
+  --echo
+  --echo create table with partition test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES;
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES;
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES;
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_3_DROP_TABLES;
+      echo CHILD2_3_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_3_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_3_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    --disable_warnings
+    eval $CHILD3_1_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    eval $CHILD3_1_CREATE_TABLES_HA_AS_P_2_1;
+    --connection child3_2
+    --disable_warnings
+    eval $CHILD3_2_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    eval $CHILD3_2_CREATE_TABLES_HA_AS_P_2_1;
+    --connection child3_3
+    --disable_warnings
+    eval $CHILD3_3_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    eval $CHILD3_3_CREATE_TABLES_HA_AS_P_2_1;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_warnings
+  DROP TABLE IF EXISTS ta_l2;
+  --enable_warnings
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_AS_P_2_1;
+  eval CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_HA_AS_P_2_1;
+  --enable_query_log
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (1, 'a', '2008-08-01 10:21:39'),
+    (2, 'b', '2000-01-01 00:00:00'),
+    (3, 'e', '2007-06-04 20:03:11'),
+    (4, 'd', '2003-11-30 05:01:03'),
+    (5, 'c', '2001-12-31 23:59:59');
+
+  --echo
+  --echo select test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    eval $CHILD2_1_SELECT_TABLES2;
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_3_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+
+  --echo
+  --echo fail-over test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_HA_AS_DROP_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_HA_AS_DROP_TABLES2;
+    --enable_warnings
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  eval $MASTER_1_CHECK_HA_STATUS;
+  --error 12511
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (6, 'e', '2011-05-05 20:04:05');
+  eval $MASTER_1_CHECK_LINK_STATUS;
+  eval $MASTER_1_CHECK_LINK_FAILED_LOG;
+  eval $MASTER_1_CHECK_HA_STATUS;
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (6, 'e', '2011-05-05 20:04:05');
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_3_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    eval $CHILD3_1_CHECK_LINK_STATUS;
+    eval $CHILD3_1_CHECK_LINK_FAILED_LOG;
+    --connection child3_2
+    eval $CHILD3_2_CHECK_LINK_STATUS;
+    eval $CHILD3_2_CHECK_LINK_FAILED_LOG;
+    --connection child3_3
+    eval $CHILD3_3_CHECK_LINK_STATUS;
+    eval $CHILD3_3_CHECK_LINK_FAILED_LOG;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+
+  --echo
+  --echo recovery test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_HA_AS_CREATE_TABLES2;
+    }
+    eval $CHILD2_1_HA_AS_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    eval $CHILD3_1_SET_OK_STATUS_AS_P_2_1;
+    eval $CHILD3_1_CHECK_LINK_STATUS;
+    --connection child3_2
+    eval $CHILD3_2_SET_OK_STATUS_AS_P_2_1;
+    eval $CHILD3_2_CHECK_LINK_STATUS;
+    --connection child3_3
+    eval $CHILD3_3_SET_OK_STATUS_AS_P_2_1;
+    eval $CHILD3_3_CHECK_LINK_STATUS;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  eval $MASTER_1_SET_OK_STATUS_AS_P_2_1;
+  eval $MASTER_1_CHECK_LINK_STATUS;
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (8, 'g', '2011-05-05 21:33:30'),
+    (9, 'h', '2011-05-05 22:32:10');
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  DROP TABLE ta_l2;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    eval $CHILD2_1_SELECT_TABLES2;
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_3_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    --disable_warnings
+    eval $CHILD3_1_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    --connection child3_2
+    --disable_warnings
+    eval $CHILD3_2_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    --connection child3_3
+    --disable_warnings
+    eval $CHILD3_3_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  --connection child2_3
+  DROP DATABASE IF EXISTS auto_test_remote3;
+}
+if ($USE_CHILD_GROUP3)
+{
+  --connection child3_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  --connection child3_2
+  DROP DATABASE IF EXISTS auto_test_local;
+  --connection child3_3
+  DROP DATABASE IF EXISTS auto_test_local;
+}
+--disable_query_log
+--disable_result_log
+--source ha_test_deinit.inc
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+}
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/oracle/t/ha_test_deinit.inc b/storage/spider/mysql-test/spider/oracle/t/ha_test_deinit.inc
new file mode 100644
index 00000000..53d0409d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/ha_test_deinit.inc
@@ -0,0 +1,30 @@
+# get connection and exist engine test
+--echo for master_1
+--connection master_1
+--source ../include/ha_deinit_master_1.inc
+--echo for child2
+if ($USE_CHILD_GROUP2)
+{
+  --echo child2_1
+  --connection child2_1
+  --source ../include/ha_deinit_child2_1.inc
+  --echo child2_2
+  --connection child2_2
+  --source ../include/ha_deinit_child2_2.inc
+  --echo child2_3
+  --connection child2_3
+  --source ../include/ha_deinit_child2_3.inc
+}
+--echo for child3
+if ($USE_CHILD_GROUP3)
+{
+  --echo child3_1
+  --connection child3_1
+  --source ../include/ha_deinit_child3_1.inc
+  --echo child3_2
+  --connection child3_2
+  --source ../include/ha_deinit_child3_2.inc
+  --echo child3_3
+  --connection child3_3
+  --source ../include/ha_deinit_child3_3.inc
+}
diff --git a/storage/spider/mysql-test/spider/oracle/t/ha_test_init.inc b/storage/spider/mysql-test/spider/oracle/t/ha_test_init.inc
new file mode 100644
index 00000000..70576ab1
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/ha_test_init.inc
@@ -0,0 +1,30 @@
+# get connection and exist engine test
+--echo for master_1
+--connection master_1
+--source ../include/ha_init_master_1.inc
+--echo for child2
+if ($USE_CHILD_GROUP2)
+{
+  --echo child2_1
+  --connection child2_1
+  --source ../include/ha_init_child2_1.inc
+  --echo child2_2
+  --connection child2_2
+  --source ../include/ha_init_child2_2.inc
+  --echo child2_3
+  --connection child2_3
+  --source ../include/ha_init_child2_3.inc
+}
+--echo for child3
+if ($USE_CHILD_GROUP3)
+{
+  --echo child3_1
+  --connection child3_1
+  --source ../include/ha_init_child3_1.inc
+  --echo child3_2
+  --connection child3_2
+  --source ../include/ha_init_child3_2.inc
+  --echo child3_3
+  --connection child3_3
+  --source ../include/ha_init_child3_3.inc
+}
diff --git a/storage/spider/mysql-test/spider/oracle/t/have_engine.inc b/storage/spider/mysql-test/spider/oracle/t/have_engine.inc
new file mode 100644
index 00000000..64bef749
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/have_engine.inc
@@ -0,0 +1,7 @@
+if (!`SELECT count(*) FROM information_schema.engines WHERE
+      (support = 'YES' OR support = 'DEFAULT') AND
+      engine = '$TEST_ENGINE_TYPE'`)
+{
+  SELECT engine, support FROM information_schema.engines;
+  --let $SKIP_REASON= "Need $TEST_ENGINE_TYPE engine"
+}
diff --git a/storage/spider/mysql-test/spider/oracle/t/have_func.inc b/storage/spider/mysql-test/spider/oracle/t/have_func.inc
new file mode 100644
index 00000000..e0823e73
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/have_func.inc
@@ -0,0 +1,5 @@
+if (!`SELECT count(*) FROM mysql.func WHERE name = '$TEST_FUNC_NAME'`)
+{
+  SELECT name FROM mysql.func;
+  --let $SKIP_REASON= "Need $TEST_FUNC_NAME function"
+}
diff --git a/storage/spider/mysql-test/spider/oracle/t/have_partition.inc b/storage/spider/mysql-test/spider/oracle/t/have_partition.inc
new file mode 100644
index 00000000..b6e69947
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/have_partition.inc
@@ -0,0 +1,7 @@
+let $HAVE_PARTITION= 0;
+if (`SELECT count(*) FROM information_schema.plugins WHERE
+      plugin_status = 'ACTIVE' AND
+      plugin_name = 'partition'`)
+{
+  let $HAVE_PARTITION= 1;
+}
diff --git a/storage/spider/mysql-test/spider/oracle/t/have_trigger.inc b/storage/spider/mysql-test/spider/oracle/t/have_trigger.inc
new file mode 100644
index 00000000..32de484b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/have_trigger.inc
@@ -0,0 +1,2 @@
+let $HAVE_TRIGGER= `SELECT COUNT(*) FROM information_schema.tables
+  WHERE TABLE_SCHEMA = 'information_schema' AND TABLE_NAME = 'TRIGGERS'`;
diff --git a/storage/spider/mysql-test/spider/oracle/t/hs_test_deinit.inc b/storage/spider/mysql-test/spider/oracle/t/hs_test_deinit.inc
new file mode 100644
index 00000000..7ec2e981
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/hs_test_deinit.inc
@@ -0,0 +1,17 @@
+# get connection and exist engine test
+--echo for master_1
+--connection master_1
+--source ../include/hs_deinit_master_1.inc
+--echo for child2
+if ($USE_CHILD_GROUP2)
+{
+  --echo child2_1
+  --connection child2_1
+  --source ../include/hs_deinit_child2_1.inc
+  --echo child2_2
+  --connection child2_2
+  --source ../include/hs_deinit_child2_2.inc
+  --echo child2_3
+  --connection child2_3
+  --source ../include/hs_deinit_child2_3.inc
+}
diff --git a/storage/spider/mysql-test/spider/oracle/t/hs_test_init.inc b/storage/spider/mysql-test/spider/oracle/t/hs_test_init.inc
new file mode 100644
index 00000000..831bf479
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/hs_test_init.inc
@@ -0,0 +1,17 @@
+# get connection and exist engine test
+--echo for master_1
+--connection master_1
+--source ../include/hs_init_master_1.inc
+--echo for child2
+if ($USE_CHILD_GROUP2)
+{
+  --echo child2_1
+  --connection child2_1
+  --source ../include/hs_init_child2_1.inc
+  --echo child2_2
+  --connection child2_2
+  --source ../include/hs_init_child2_2.inc
+  --echo child2_3
+  --connection child2_3
+  --source ../include/hs_init_child2_3.inc
+}
diff --git a/storage/spider/mysql-test/spider/oracle/t/slave_test_deinit.inc b/storage/spider/mysql-test/spider/oracle/t/slave_test_deinit.inc
new file mode 100644
index 00000000..e9d99b7a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/slave_test_deinit.inc
@@ -0,0 +1,6 @@
+# get connection and exist engine test
+--echo for slave1_1
+--connection slave1_1
+STOP SLAVE;
+--source ../include/deinit_slave1_1.inc
+--disconnect slave1_1
diff --git a/storage/spider/mysql-test/spider/oracle/t/slave_test_init.inc b/storage/spider/mysql-test/spider/oracle/t/slave_test_init.inc
new file mode 100644
index 00000000..739d8897
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/slave_test_init.inc
@@ -0,0 +1,44 @@
+# get connection and exist engine test
+--echo for slave1_1
+--source connect_slave1_1.inc
+--connection slave1_1
+SET SESSION sql_log_bin= 0;
+--let $SLAVE1_1_SERVER_ID=`SELECT @@global.server_id`
+--let $TEST_ENGINE_TYPE= $SLAVE1_1_ENGINE_TYPE
+--source have_partition.inc
+--source have_trigger.inc
+--source ../include/init_slave1_1.inc
+--source have_engine.inc
+--let $SLAVE1_1_SLAVE_STATUS=`SHOW SLAVE STATUS`
+if (!$SLAVE1_1_SLAVE_STATUS)
+{
+  eval CHANGE MASTER TO
+    MASTER_HOST = '127.0.0.1',
+    MASTER_USER = 'root',
+    MASTER_PASSWORD = '',
+    MASTER_PORT = $MASTER_1_MYPORT
+  ;
+}
+START SLAVE;
+--connection master_1
+call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+--connection slave1_1
+call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+  --connection child2_2
+  call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+  --connection child2_3
+  call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+}
+if ($USE_CHILD_GROUP3)
+{
+  --connection child3_1
+  call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+  --connection child3_2
+  call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+  --connection child3_3
+  call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+}
diff --git a/storage/spider/mysql-test/spider/oracle/t/spider3_fixes.test b/storage/spider/mysql-test/spider/oracle/t/spider3_fixes.test
new file mode 100644
index 00000000..13fa6f5f
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/spider3_fixes.test
@@ -0,0 +1,292 @@
+# This test tests for Spider 3.0's bug fixes
+source include/have_log_bin.inc;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--source slave_test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+
+--echo
+--echo 3.1
+--echo auto_increment
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_INCREMENT_TABLES1;
+    echo CHILD2_1_CREATE_INCREMENT_TABLES1;
+    echo CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+    echo CHILD2_1_AUTO_INCREMENT_OFFSET2;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_INCREMENT_TABLES1;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_INCREMENT_TABLES1;
+  eval $CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+  eval $CHILD2_1_AUTO_INCREMENT_OFFSET2;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+if ($USE_REPLICATION)
+{
+  save_master_pos;
+  --connection slave1_1
+  sync_with_master;
+  --connection master_1
+  --disable_query_log
+  SET SESSION sql_log_bin= 0;
+  --enable_query_log
+}
+--disable_warnings
+DROP TABLE IF EXISTS t1, t2;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE t1 (
+  id int(11) NOT NULL AUTO_INCREMENT,
+  PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_1;
+echo CREATE TABLE t2 (
+  id int(11) NOT NULL AUTO_INCREMENT,
+  PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_1;
+echo MASTER_1_AUTO_INCREMENT_INCREMENT2;
+echo MASTER_1_AUTO_INCREMENT_OFFSET2;
+eval CREATE TABLE t1 (
+  id int(11) NOT NULL AUTO_INCREMENT,
+  PRIMARY KEY (id)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_INCREMENT1_1;
+eval CREATE TABLE t2 (
+  id int(11) NOT NULL AUTO_INCREMENT,
+  PRIMARY KEY (id)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_INCREMENT1_1;
+eval $MASTER_1_AUTO_INCREMENT_INCREMENT2;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET2;
+if ($USE_REPLICATION)
+{
+  SET SESSION sql_log_bin= 1;
+  --connection slave1_1
+  --disable_warnings
+  DROP TABLE IF EXISTS t1, t2;
+  --enable_warnings
+  echo CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_1;
+  echo CREATE TABLE t2 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_1;
+  eval CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $SLAVE1_1_ENGINE $SLAVE1_1_CHARSET $SLAVE1_1_COMMENT_INCREMENT1_1;
+  eval CREATE TABLE t2 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $SLAVE1_1_ENGINE $SLAVE1_1_CHARSET $SLAVE1_1_COMMENT_INCREMENT1_1;
+  --connection master_1
+}
+--enable_query_log
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t2 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t2;
+--disable_query_log
+echo MASTER_1_AUTO_INCREMENT_OFFSET3;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET3;
+--enable_query_log
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+--disable_query_log
+echo MASTER_1_AUTO_INCREMENT_OFFSET4;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET4;
+--enable_query_log
+INSERT INTO t2 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t2;
+--disable_query_log
+echo MASTER_1_AUTO_INCREMENT_OFFSET3;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET3;
+--enable_query_log
+INSERT INTO t1 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+SELECT id FROM t1 ORDER BY id;
+--disable_query_log
+echo MASTER_1_AUTO_INCREMENT_OFFSET4;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET4;
+--enable_query_log
+INSERT INTO t2 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+SELECT id FROM t2 ORDER BY id;
+TRUNCATE TABLE t1;
+TRUNCATE TABLE t2;
+INSERT INTO t1 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+SELECT id FROM t1 ORDER BY id;
+INSERT INTO t2 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+SELECT id FROM t2 ORDER BY id;
+SET INSERT_ID=5000;
+--disable_query_log
+echo MASTER_1_AUTO_INCREMENT_OFFSET3;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET3;
+--enable_query_log
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+--disable_query_log
+echo MASTER_1_AUTO_INCREMENT_OFFSET4;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET4;
+--enable_query_log
+INSERT INTO t2 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t2;
+INSERT INTO t1 (id) VALUES (10000);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t2 (id) VALUES (1000);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t2;
+if ($USE_REPLICATION)
+{
+  save_master_pos;
+  --connection slave1_1
+  sync_with_master;
+  SELECT id FROM t1 ORDER BY id;
+  --connection master_1
+  --disable_query_log
+  SET SESSION sql_log_bin= 0;
+  --enable_query_log
+}
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_INCREMENT_TABLES1;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+    echo CHILD2_1_AUTO_INCREMENT_OFFSET1;
+  }
+  eval $CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+  eval $CHILD2_1_AUTO_INCREMENT_OFFSET1;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source slave_test_deinit.inc
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/oracle/t/spider3_fixes_part.test b/storage/spider/mysql-test/spider/oracle/t/spider3_fixes_part.test
new file mode 100644
index 00000000..3288c490
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/spider3_fixes_part.test
@@ -0,0 +1,345 @@
+# This test tests for Spider 3.0's bug fixes
+source include/have_log_bin.inc;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--source slave_test_init.inc
+--enable_result_log
+--enable_query_log
+if (!$HAVE_PARTITION)
+{
+  --disable_query_log
+  --disable_result_log
+  --source slave_test_deinit.inc
+  --source test_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+
+--echo auto_increment with partition
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_INCREMENT_TABLES1;
+      echo CHILD2_1_CREATE_INCREMENT_TABLES1;
+      echo CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+      echo CHILD2_1_AUTO_INCREMENT_OFFSET2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_INCREMENT_TABLES1;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_INCREMENT_TABLES1;
+    eval $CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+    eval $CHILD2_1_AUTO_INCREMENT_OFFSET2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_INCREMENT_TABLES1;
+      echo CHILD2_2_CREATE_INCREMENT_TABLES1;
+      echo CHILD2_2_AUTO_INCREMENT_INCREMENT2;
+      echo CHILD2_2_AUTO_INCREMENT_OFFSET2;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_INCREMENT_TABLES1;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_INCREMENT_TABLES1;
+    eval $CHILD2_2_AUTO_INCREMENT_INCREMENT2;
+    eval $CHILD2_2_AUTO_INCREMENT_OFFSET2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  if ($USE_REPLICATION)
+  {
+    save_master_pos;
+    --connection slave1_1
+    sync_with_master;
+    --connection master_1
+    --disable_query_log
+    SET SESSION sql_log_bin= 0;
+    --enable_query_log
+  }
+  --disable_warnings
+  DROP TABLE IF EXISTS t1, t2;
+  --enable_warnings
+  --disable_query_log
+  echo CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_P_1;
+  echo CREATE TABLE t2 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_P_1;
+  echo MASTER_1_AUTO_INCREMENT_INCREMENT2;
+  echo MASTER_1_AUTO_INCREMENT_OFFSET2;
+  eval CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_INCREMENT1_P_1;
+  eval CREATE TABLE t2 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_INCREMENT1_P_1;
+  eval $MASTER_1_AUTO_INCREMENT_INCREMENT2;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET2;
+  if ($USE_REPLICATION)
+  {
+    SET SESSION sql_log_bin= 1;
+    --connection slave1_1
+    --disable_warnings
+    DROP TABLE IF EXISTS t1, t2;
+    --enable_warnings
+    echo CREATE TABLE t1 (
+      id int(11) NOT NULL AUTO_INCREMENT,
+      PRIMARY KEY (id)
+    ) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_P_1;
+    echo CREATE TABLE t2 (
+      id int(11) NOT NULL AUTO_INCREMENT,
+      PRIMARY KEY (id)
+    ) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_P_1;
+    eval CREATE TABLE t1 (
+      id int(11) NOT NULL AUTO_INCREMENT,
+      PRIMARY KEY (id)
+    ) $SLAVE1_1_ENGINE $SLAVE1_1_CHARSET $SLAVE1_1_COMMENT_INCREMENT1_P_1;
+    eval CREATE TABLE t2 (
+      id int(11) NOT NULL AUTO_INCREMENT,
+      PRIMARY KEY (id)
+    ) $SLAVE1_1_ENGINE $SLAVE1_1_CHARSET $SLAVE1_1_COMMENT_INCREMENT1_P_1;
+    --connection master_1
+  }
+  --enable_query_log
+  INSERT INTO t1 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t2 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t2;
+  --disable_query_log
+  echo MASTER_1_AUTO_INCREMENT_OFFSET3;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET3;
+  --enable_query_log
+  INSERT INTO t1 (id) VALUES (null);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  --disable_query_log
+  echo MASTER_1_AUTO_INCREMENT_OFFSET4;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET4;
+  --enable_query_log
+  INSERT INTO t2 (id) VALUES (null);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t2;
+  --disable_query_log
+  echo MASTER_1_AUTO_INCREMENT_OFFSET3;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET3;
+  --enable_query_log
+  INSERT INTO t1 () VALUES (),(),(),();
+  SELECT LAST_INSERT_ID();
+  SELECT id FROM t1 ORDER BY id;
+  --disable_query_log
+  echo MASTER_1_AUTO_INCREMENT_OFFSET4;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET4;
+  --enable_query_log
+  INSERT INTO t2 () VALUES (),(),(),();
+  SELECT LAST_INSERT_ID();
+  SELECT id FROM t2 ORDER BY id;
+  TRUNCATE TABLE t1;
+  TRUNCATE TABLE t2;
+  INSERT INTO t1 () VALUES (),(),(),();
+  SELECT LAST_INSERT_ID();
+  SELECT id FROM t1 ORDER BY id;
+  INSERT INTO t2 () VALUES (),(),(),();
+  SELECT LAST_INSERT_ID();
+  SELECT id FROM t2 ORDER BY id;
+  SET INSERT_ID=5000;
+  --disable_query_log
+  echo MASTER_1_AUTO_INCREMENT_OFFSET3;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET3;
+  --enable_query_log
+  INSERT INTO t1 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  --disable_query_log
+  echo MASTER_1_AUTO_INCREMENT_OFFSET4;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET4;
+  --enable_query_log
+  INSERT INTO t2 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t2;
+  INSERT INTO t1 (id) VALUES (10000);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t2 (id) VALUES (1000);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t2;
+  if ($USE_REPLICATION)
+  {
+    save_master_pos;
+    --connection slave1_1
+    sync_with_master;
+    SELECT id FROM t1 ORDER BY id;
+    --connection master_1
+    --disable_query_log
+    SET SESSION sql_log_bin= 0;
+    --enable_query_log
+  }
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_1_SELECT_INCREMENT_TABLES1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+      echo CHILD2_1_AUTO_INCREMENT_OFFSET1;
+    }
+    eval $CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+    eval $CHILD2_1_AUTO_INCREMENT_OFFSET1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_2_SELECT_INCREMENT_TABLES1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_AUTO_INCREMENT_INCREMENT1;
+      echo CHILD2_2_AUTO_INCREMENT_OFFSET1;
+    }
+    eval $CHILD2_2_AUTO_INCREMENT_INCREMENT1;
+    eval $CHILD2_2_AUTO_INCREMENT_OFFSET1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source slave_test_deinit.inc
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/oracle/t/spider_fixes.test b/storage/spider/mysql-test/spider/oracle/t/spider_fixes.test
new file mode 100644
index 00000000..04e806fb
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/spider_fixes.test
@@ -0,0 +1,1419 @@
+# This test tests for Spider's bug fixes
+source include/have_log_bin.inc;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--source slave_test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table and insert
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tb_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+eval CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+--enable_query_log
+INSERT INTO tb_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+
+--echo
+--echo 2.13
+--echo select table with "order by desc" and "<"
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+WHERE a < 5 ORDER BY a DESC LIMIT 3;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select table with "order by desc" and "<="
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+WHERE a <= 5 ORDER BY a DESC LIMIT 3;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo 2.14
+--echo update table with range scan and split_read
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l SET c = '2000-02-02 00:00:00' WHERE a > 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo 2.15
+--echo select table with range scan
+TRUNCATE TABLE ta_l;
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES6;
+    echo CHILD2_1_CREATE_TABLES6;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES6;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES6;
+  --enable_query_log
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_query_log
+echo CREATE TABLE ta_l (
+  a int(11) NOT NULL DEFAULT '0',
+  b char(1) DEFAULT NULL,
+  c datetime DEFAULT NULL,
+  PRIMARY KEY (a, b, c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT5_2_1;
+eval CREATE TABLE ta_l (
+  a int(11) NOT NULL DEFAULT '0',
+  b char(1) DEFAULT NULL,
+  c datetime DEFAULT NULL,
+  PRIMARY KEY (a, b, c)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT5_2_1;
+--enable_query_log
+INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b >= 'b'
+AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b > 'b'
+AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a >= 4 AND b = 'd'
+AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a > 4 AND b = 'c'
+AND c = '2001-12-31 23:59:59';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b <= 'd'
+AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b < 'e'
+AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a <= 4 AND b = 'b'
+AND c = '2000-01-01 00:00:00';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a < 4 AND b = 'b'
+AND c = '2000-01-01 00:00:00';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b >= 'b'
+AND b <= 'd' AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b > 'b'
+AND b < 'e' AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a <= 4 AND a >= 1
+AND b >= 'b' AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a < 4 AND a > 1
+AND b >= 'b' AND c = '2000-01-01 00:00:00';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo 2.16
+--echo auto_increment insert with trigger
+if ($HAVE_TRIGGER)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_result_log
+    }
+    --disable_query_log
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      echo CHILD2_1_DROP_TABLES4;
+      echo CHILD2_1_CREATE_TABLES4;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES4;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES4;
+    --enable_query_log
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l_auto_inc (
+    a INT AUTO_INCREMENT,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT3_2_1;
+  eval CREATE TABLE ta_l_auto_inc (
+    a INT AUTO_INCREMENT,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT3_2_1;
+  echo CREATE TABLE tc_l (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+  eval CREATE TABLE tc_l (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+  --enable_query_log
+  --eval CREATE TRIGGER ins_ta_l_auto_inc AFTER INSERT ON ta_l_auto_inc FOR EACH ROW BEGIN INSERT INTO tc_l (a, b, c) VALUES (NEW.a, NEW.b, NEW.c); END;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  INSERT INTO ta_l_auto_inc (a, b, c) VALUES
+  (NULL, 's', '2008-12-31 20:59:59');
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_1_SELECT_TABLES4;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM tc_l ORDER BY a;
+}
+
+--echo
+--echo 2.17
+--echo engine-condition-pushdown with "or" and joining
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l WHERE a = 1 OR a IN (SELECT a FROM tb_l);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo 2.23
+--echo index merge
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_result_log
+  }
+  --disable_query_log
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    echo CHILD2_1_DROP_TABLES5;
+    echo CHILD2_1_CREATE_TABLES5;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES5;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES5;
+  --enable_query_log
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_query_log
+echo CREATE TABLE ta_l_int (
+  a INT AUTO_INCREMENT,
+  b INT DEFAULT 10,
+  c INT DEFAULT 11,
+  PRIMARY KEY(a),
+  KEY idx1(b),
+  KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1;
+eval CREATE TABLE ta_l_int (
+  a INT AUTO_INCREMENT,
+  b INT DEFAULT 10,
+  c INT DEFAULT 11,
+  PRIMARY KEY(a),
+  KEY idx1(b),
+  KEY idx2(c)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+--enable_query_log
+INSERT INTO ta_l_int (a, b, c) VALUES (1, 2, 3);
+INSERT INTO ta_l_int (a, b, c) SELECT a + 1, b + 1, c + 1 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 2, b + 2, c + 2 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 4, b + 4, c + 4 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 8, b + 8, c + 8 FROM ta_l_int;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l_int force index(primary, idx1, idx2)
+WHERE a = 5 OR b = 5 OR c = 5 ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo 2.24
+--echo index scan update without PK
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l_int;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l_int (
+  a INT NOT NULL,
+  b INT DEFAULT 10,
+  c INT DEFAULT 11,
+  KEY idx1(b),
+  KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1;
+if ($MASTER_1_NEEDPK)
+{
+  --error ER_REQUIRES_PRIMARY_KEY
+  eval CREATE TABLE ta_l_int (
+    a INT NOT NULL,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    KEY idx1(b),
+    KEY idx2(c)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+  eval CREATE TABLE ta_l_int (
+    a INT NOT NULL,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    PRIMARY KEY(a),
+    KEY idx1(b),
+    KEY idx2(c)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+}
+if (!$MASTER_1_NEEDPK)
+{
+  eval CREATE TABLE ta_l_int (
+    a INT NOT NULL,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    KEY idx1(b),
+    KEY idx2(c)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+}
+--enable_query_log
+SELECT a, b, c FROM ta_l_int ORDER BY a;
+INSERT INTO ta_l_int (a, b, c) VALUES (0, 2, 3);
+INSERT INTO ta_l_int (a, b, c) VALUES (18, 2, 3);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l_int SET c = 4 WHERE b = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%update %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l_int ORDER BY a;
+
+
+--echo
+--echo 2.25
+--echo direct order limit
+--connection master_1
+eval $MASTER_1_CHECK_DIRECT_ORDER_LIMIT_STATUS;
+SELECT a, b, c FROM ta_l_int ORDER BY a LIMIT 3;
+eval $MASTER_1_CHECK_DIRECT_ORDER_LIMIT_STATUS;
+
+
+--echo
+--echo 2.26
+--echo lock tables
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_LOCK_TABLES1;
+    echo CHILD2_1_DROP_LOCK_TABLES2;
+    echo CHILD2_1_CREATE_LOCK_TABLES1;
+    echo CHILD2_1_CREATE_LOCK_TABLES2;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_LOCK_TABLES1;
+  eval $CHILD2_1_DROP_LOCK_TABLES2;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_LOCK_TABLES1;
+  eval $CHILD2_1_CREATE_LOCK_TABLES2;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_2_DROP_LOCK_TABLES1;
+    echo CHILD2_2_DROP_LOCK_TABLES2;
+    echo CHILD2_2_CREATE_LOCK_TABLES1;
+    echo CHILD2_2_CREATE_LOCK_TABLES2;
+  }
+  --disable_warnings
+  eval $CHILD2_2_DROP_LOCK_TABLES1;
+  eval $CHILD2_2_DROP_LOCK_TABLES2;
+  --enable_warnings
+  eval $CHILD2_2_CREATE_LOCK_TABLES1;
+  eval $CHILD2_2_CREATE_LOCK_TABLES2;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS t1;
+DROP TABLE IF EXISTS t2;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE t1 (
+  id int(11) NOT NULL,
+  PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_LOCK1;
+eval CREATE TABLE t1 (
+  id int(11) NOT NULL,
+  PRIMARY KEY (id)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_LOCK1;
+echo CREATE TABLE t2 (
+  id int(11) NOT NULL,
+  PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_LOCK2;
+eval CREATE TABLE t2 (
+  id int(11) NOT NULL,
+  PRIMARY KEY (id)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_LOCK2;
+--enable_query_log
+LOCK TABLES t1 READ, t2 READ;
+UNLOCK TABLES;
+
+
+--echo
+--echo auto_increment
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_INCREMENT_TABLES1;
+    echo CHILD2_1_CREATE_INCREMENT_TABLES1;
+    echo CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+    echo CHILD2_1_AUTO_INCREMENT_OFFSET2;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_INCREMENT_TABLES1;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_INCREMENT_TABLES1;
+  eval $CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+  eval $CHILD2_1_AUTO_INCREMENT_OFFSET2;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+if ($USE_REPLICATION)
+{
+  save_master_pos;
+  --connection slave1_1
+  sync_with_master;
+  --connection master_1
+  --disable_query_log
+  SET SESSION sql_log_bin= 0;
+  --enable_query_log
+}
+--disable_warnings
+DROP TABLE IF EXISTS t1;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE t1 (
+  id int(11) NOT NULL AUTO_INCREMENT,
+  PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_1;
+echo MASTER_1_AUTO_INCREMENT_INCREMENT2;
+echo MASTER_1_AUTO_INCREMENT_OFFSET2;
+eval CREATE TABLE t1 (
+  id int(11) NOT NULL AUTO_INCREMENT,
+  PRIMARY KEY (id)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_INCREMENT1_1;
+eval $MASTER_1_AUTO_INCREMENT_INCREMENT2;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET2;
+if ($USE_REPLICATION)
+{
+  SET SESSION sql_log_bin= 1;
+  --connection slave1_1
+  --disable_warnings
+  DROP TABLE IF EXISTS t1;
+  --enable_warnings
+  echo CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_1;
+  eval CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $SLAVE1_1_ENGINE $SLAVE1_1_CHARSET $SLAVE1_1_COMMENT_INCREMENT1_1;
+  --connection master_1
+}
+--enable_query_log
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t1 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+SELECT id FROM t1 ORDER BY id;
+SET INSERT_ID=5000;
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t1 (id) VALUES (10000);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t1 (id) VALUES (1000);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+if ($USE_REPLICATION)
+{
+  save_master_pos;
+  --connection slave1_1
+  sync_with_master;
+  SELECT id FROM t1 ORDER BY id;
+  --connection master_1
+  --disable_query_log
+  SET SESSION sql_log_bin= 0;
+  --enable_query_log
+}
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_INCREMENT_TABLES1;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+    echo CHILD2_1_AUTO_INCREMENT_OFFSET1;
+  }
+  eval $CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+  eval $CHILD2_1_AUTO_INCREMENT_OFFSET1;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+
+--echo
+--echo read only
+let $MASTER_1_ENGINE_IS_SPIDER=
+  `SELECT IF('$MASTER_1_ENGINE_TYPE' = 'Spider' OR
+    '$MASTER_1_HIDDEN_ENGINE_TYPE' = 'Spider', 1, 0)`;
+if ($MASTER_1_ENGINE_IS_SPIDER)
+{
+  --connection master_1
+  --disable_warnings
+  DROP TABLE IF EXISTS t1;
+  --enable_warnings
+  --disable_query_log
+  echo CREATE TABLE t1 (
+    id int(11) NOT NULL,
+    PRIMARY KEY (id)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_READONLY1_1;
+  eval CREATE TABLE t1 (
+    id int(11) NOT NULL,
+    PRIMARY KEY (id)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_READONLY1_1;
+  --let $MIN_VAL= `SELECT MIN(id) FROM t1`
+  --enable_query_log
+  SELECT id FROM t1 ORDER BY id;
+  --error 12518
+  INSERT INTO t1 (id) VALUES (1);
+  --error 12518
+  eval UPDATE t1 SET id = 4 WHERE id = $MIN_VAL;
+  --error 12518
+  eval DELETE FROM t1 WHERE id = $MIN_VAL;
+  --error 12518
+  DELETE FROM t1;
+  --error 12518
+  TRUNCATE t1;
+}
+if (!$MASTER_1_ENGINE_IS_SPIDER)
+{
+  --echo skipped
+}
+
+
+--echo
+--echo 2.27
+--echo error mode
+if ($MASTER_1_ENGINE_IS_SPIDER)
+{
+  --connection master_1
+  --disable_warnings
+  DROP TABLE IF EXISTS t1;
+  --enable_warnings
+  --disable_query_log
+  echo CREATE TABLE t1 (
+    id int(11) NOT NULL,
+    PRIMARY KEY (id)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_ERROR_MODE1_1;
+  eval CREATE TABLE t1 (
+    id int(11) NOT NULL,
+    PRIMARY KEY (id)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_ERROR_MODE1_1;
+  --enable_query_log
+  SELECT id FROM t1 ORDER BY id;
+  INSERT INTO t1 (id) VALUES (1);
+  DELETE FROM t1;
+  TRUNCATE t1;
+}
+if (!$MASTER_1_ENGINE_IS_SPIDER)
+{
+  --echo skipped
+}
+
+
+--echo
+--echo 3.0
+--echo is null
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_result_log
+  }
+  --disable_query_log
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    echo CHILD2_1_DROP_TEXT_KEY_TABLES1;
+    echo CHILD2_1_CREATE_TEXT_KEY_TABLES1;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TEXT_KEY_TABLES1;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TEXT_KEY_TABLES1;
+  --enable_query_log
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS t1;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE t1 (
+  a VARCHAR(255),
+  b VARCHAR(255),
+  c VARCHAR(255),
+  KEY idx1(a,b),
+  KEY idx2(b),
+  PRIMARY KEY(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_TEXT_KEY1_1;
+eval CREATE TABLE t1 (
+  a VARCHAR(255),
+  b VARCHAR(255),
+  c VARCHAR(255),
+  KEY idx1(a,b),
+  KEY idx2(b),
+  PRIMARY KEY(c)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_TEXT_KEY1_1;
+--enable_query_log
+insert into t1 values (null, null, '2048');
+insert into t1 values ('1', '1', '1');
+insert into t1 select a + 1,   b + 1,   c + 1   from t1;
+insert into t1 select a + 2,   b + 2,   c + 2   from t1;
+insert into t1 select a + 4,   b + 4,   c + 4   from t1;
+insert into t1 select a + 8,   b + 8,   c + 8   from t1;
+insert into t1 select a + 16,  b + 16,  c + 16  from t1;
+insert into t1 select a + 32,  b + 32,  c + 32  from t1;
+insert into t1 select a + 64,  b + 64,  c + 64  from t1;
+insert into t1 select a + 128, b + 128, c + 128 from t1;
+insert into t1 select a + 256, b + 256, c + 256 from t1;
+insert into t1 select a + 512, b + 512, c + 512 from t1;
+flush tables;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+select a from t1 where a is null order by a limit 30;
+select b from t1 where b is null order by b limit 30;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TEXT_PK_TABLES1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+
+--echo
+--echo direct_order_limit
+--connection master_1
+TRUNCATE TABLE t1;
+insert into t1 values ('1', '1', '1');
+insert into t1 select a + 1,   b + 1,   c + 1   from t1;
+insert into t1 select a + 2,   b + 2,   c + 2   from t1;
+insert into t1 select a + 4,   b + 4,   c + 4   from t1;
+insert into t1 select a + 8,   b + 8,   c + 8   from t1;
+insert into t1 select a + 16,  b + 16,  c + 16  from t1;
+insert into t1 select a,       b + 32,  c + 32  from t1;
+insert into t1 select a,       b + 64,  c + 64  from t1;
+insert into t1 select a,       b + 128, c + 128 from t1;
+flush tables;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+select a, b, c from t1 where a = '10' and b <> '100' order by c desc limit 5;
+select a, c from t1 where a = '10' order by b desc limit 5;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TEXT_PK_TABLES1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source slave_test_deinit.inc
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/oracle/t/spider_fixes_part.test b/storage/spider/mysql-test/spider/oracle/t/spider_fixes_part.test
new file mode 100644
index 00000000..ef5a8026
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/spider_fixes_part.test
@@ -0,0 +1,645 @@
+# This test tests for Spider's bug fixes
+source include/have_log_bin.inc;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--source slave_test_init.inc
+--enable_result_log
+--enable_query_log
+if (!$HAVE_PARTITION)
+{
+  --disable_query_log
+  --disable_result_log
+  --source slave_test_deinit.inc
+  --source test_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tb_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+eval CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+--enable_query_log
+INSERT INTO tb_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+
+--echo
+--echo 2.17
+--echo partition with sort
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1;
+  eval CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_COMMENT2_P_2_1;
+  --enable_query_log
+  INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 WHERE a > 1
+  ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo
+--echo 2.23
+--echo partition update with moving partition
+if ($HAVE_PARTITION)
+{
+  --connection master_1
+  --disable_warnings
+  DROP TABLE IF EXISTS ta_l2;
+  --enable_warnings
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1;
+  eval CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_COMMENT2_P_2_1;
+  --enable_query_log
+  INSERT INTO ta_l2 (a, b, c) VALUES (3, 'B', '2010-09-26 00:00:00');
+  UPDATE ta_l2 SET a = 4 WHERE a = 3;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%update %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%delete %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%update %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%delete %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo index merge with partition
+if ($HAVE_PARTITION)
+{
+  --connection master_1
+  --disable_warnings
+  DROP TABLE IF EXISTS ta_l_int;
+  --enable_warnings
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_result_log
+    }
+    --disable_query_log
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      echo CHILD2_2_DROP_TABLES5;
+      echo CHILD2_2_CREATE_TABLES5;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES5;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES5;
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      echo CHILD2_1_DROP_TABLES5;
+      echo CHILD2_1_CREATE_TABLES5;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES5;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES5;
+    --enable_query_log
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l_int (
+    a INT AUTO_INCREMENT,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    PRIMARY KEY(a),
+    KEY idx1(b),
+    KEY idx2(c)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT3_P_2_1;
+  eval CREATE TABLE ta_l_int (
+    a INT AUTO_INCREMENT,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    PRIMARY KEY(a),
+    KEY idx1(b),
+    KEY idx2(c)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT3_P_2_1;
+  --enable_query_log
+  INSERT INTO ta_l_int (a, b, c) VALUES (1, 2, 3);
+  INSERT INTO ta_l_int (a, b, c) SELECT a + 1, b + 1, c + 1 FROM ta_l_int;
+  INSERT INTO ta_l_int (a, b, c) SELECT a + 2, b + 2, c + 2 FROM ta_l_int;
+  INSERT INTO ta_l_int (a, b, c) SELECT a + 4, b + 4, c + 4 FROM ta_l_int;
+  INSERT INTO ta_l_int (a, b, c) SELECT a + 8, b + 8, c + 8 FROM ta_l_int;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, c FROM ta_l_int force index(primary, idx1, idx2)
+  WHERE a = 5 OR b = 5 OR c = 5 ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+
+--echo
+--echo 2.26
+--echo auto_increment with partition
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_INCREMENT_TABLES1;
+      echo CHILD2_1_CREATE_INCREMENT_TABLES1;
+      echo CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+      echo CHILD2_1_AUTO_INCREMENT_OFFSET2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_INCREMENT_TABLES1;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_INCREMENT_TABLES1;
+    eval $CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+    eval $CHILD2_1_AUTO_INCREMENT_OFFSET2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_INCREMENT_TABLES1;
+      echo CHILD2_2_CREATE_INCREMENT_TABLES1;
+      echo CHILD2_2_AUTO_INCREMENT_INCREMENT2;
+      echo CHILD2_2_AUTO_INCREMENT_OFFSET2;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_INCREMENT_TABLES1;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_INCREMENT_TABLES1;
+    eval $CHILD2_2_AUTO_INCREMENT_INCREMENT2;
+    eval $CHILD2_2_AUTO_INCREMENT_OFFSET2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  if ($USE_REPLICATION)
+  {
+    save_master_pos;
+    --connection slave1_1
+    sync_with_master;
+    --connection master_1
+    --disable_query_log
+    SET SESSION sql_log_bin= 0;
+    --enable_query_log
+  }
+  --disable_warnings
+  DROP TABLE IF EXISTS t1;
+  --enable_warnings
+  --disable_query_log
+  echo CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_P_1;
+  echo MASTER_1_AUTO_INCREMENT_INCREMENT2;
+  echo MASTER_1_AUTO_INCREMENT_OFFSET2;
+  eval CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_INCREMENT1_P_1;
+  eval $MASTER_1_AUTO_INCREMENT_INCREMENT2;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET2;
+  if ($USE_REPLICATION)
+  {
+    SET SESSION sql_log_bin= 1;
+    --connection slave1_1
+    --disable_warnings
+    DROP TABLE IF EXISTS t1;
+    --enable_warnings
+    echo CREATE TABLE t1 (
+      id int(11) NOT NULL AUTO_INCREMENT,
+      PRIMARY KEY (id)
+    ) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_P_1;
+    eval CREATE TABLE t1 (
+      id int(11) NOT NULL AUTO_INCREMENT,
+      PRIMARY KEY (id)
+    ) $SLAVE1_1_ENGINE $SLAVE1_1_CHARSET $SLAVE1_1_COMMENT_INCREMENT1_P_1;
+    --connection master_1
+  }
+  --enable_query_log
+  INSERT INTO t1 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t1 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t1 (id) VALUES (null);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t1 (id) VALUES (null);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t1 () VALUES (),(),(),();
+  SELECT LAST_INSERT_ID();
+  SELECT id FROM t1 ORDER BY id;
+  SET INSERT_ID=5000;
+  INSERT INTO t1 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t1 (id) VALUES (10000);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t1 (id) VALUES (1000);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  if ($USE_REPLICATION)
+  {
+    save_master_pos;
+    --connection slave1_1
+    sync_with_master;
+    SELECT id FROM t1 ORDER BY id;
+    --connection master_1
+    --disable_query_log
+    SET SESSION sql_log_bin= 0;
+    --enable_query_log
+  }
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_1_SELECT_INCREMENT_TABLES1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+      echo CHILD2_1_AUTO_INCREMENT_OFFSET1;
+    }
+    eval $CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+    eval $CHILD2_1_AUTO_INCREMENT_OFFSET1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_2_SELECT_INCREMENT_TABLES1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_AUTO_INCREMENT_INCREMENT1;
+      echo CHILD2_2_AUTO_INCREMENT_OFFSET1;
+    }
+    eval $CHILD2_2_AUTO_INCREMENT_INCREMENT1;
+    eval $CHILD2_2_AUTO_INCREMENT_OFFSET1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source slave_test_deinit.inc
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/oracle/t/test_deinit.inc b/storage/spider/mysql-test/spider/oracle/t/test_deinit.inc
new file mode 100644
index 00000000..989bde26
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/test_deinit.inc
@@ -0,0 +1,37 @@
+# get connection and exist engine test
+--echo for master_1
+--connection master_1
+--source ../include/deinit_master_1.inc
+--disconnect master_1
+--echo for child2
+if ($USE_CHILD_GROUP2)
+{
+  --echo child2_1
+  --connection child2_1
+  --source ../include/deinit_child2_1.inc
+  --disconnect child2_1
+  --echo child2_2
+  --connection child2_2
+  --source ../include/deinit_child2_2.inc
+  --disconnect child2_2
+  --echo child2_3
+  --connection child2_3
+  --source ../include/deinit_child2_3.inc
+  --disconnect child2_3
+}
+--echo for child3
+if ($USE_CHILD_GROUP3)
+{
+  --echo child3_1
+  --connection child3_1
+  --source ../include/deinit_child3_1.inc
+  --disconnect child3_1
+  --echo child3_2
+  --connection child3_2
+  --source ../include/deinit_child3_2.inc
+  --disconnect child3_2
+  --echo child3_3
+  --connection child3_3
+  --source ../include/deinit_child3_3.inc
+  --disconnect child3_3
+}
diff --git a/storage/spider/mysql-test/spider/oracle/t/test_init.inc b/storage/spider/mysql-test/spider/oracle/t/test_init.inc
new file mode 100644
index 00000000..f2cd6c02
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/test_init.inc
@@ -0,0 +1,74 @@
+# get connection and exist engine test
+--echo for master_1
+--source connect_master_1.inc
+--connection master_1
+CALL mtr.add_suppression("unknown variable");
+SET SESSION sql_log_bin= 0;
+--let $MASTER_1_SERVER_ID=`SELECT @@global.server_id`
+--let $TEST_ENGINE_TYPE= $MASTER_1_ENGINE_TYPE
+--source have_partition.inc
+--source have_trigger.inc
+--source ../include/init_master_1.inc
+--source have_engine.inc
+--echo for child2
+if ($USE_CHILD_GROUP2)
+{
+  --echo child2_1
+  --source connect_child2_1.inc
+  --connection child2_1
+  CALL mtr.add_suppression("unknown variable *");
+  SET SESSION sql_log_bin= 0;
+  --let $CHILD2_1_SERVER_ID=`SELECT @@global.server_id`
+  --let $TEST_ENGINE_TYPE= $CHILD2_1_ENGINE_TYPE
+  --source ../include/init_child2_1.inc
+  --source have_engine.inc
+  --echo child2_2
+  --source connect_child2_2.inc
+  --connection child2_2
+  CALL mtr.add_suppression("unknown variable *");
+  SET SESSION sql_log_bin= 0;
+  --let $CHILD2_2_SERVER_ID=`SELECT @@global.server_id`
+  --let $TEST_ENGINE_TYPE= $CHILD2_2_ENGINE_TYPE
+  --source ../include/init_child2_2.inc
+  --source have_engine.inc
+  --echo child2_3
+  --source connect_child2_3.inc
+  --connection child2_3
+  CALL mtr.add_suppression("unknown variable *");
+  SET SESSION sql_log_bin= 0;
+  --let $CHILD2_3_SERVER_ID=`SELECT @@global.server_id`
+  --let $TEST_ENGINE_TYPE= $CHILD2_3_ENGINE_TYPE
+  --source ../include/init_child2_3.inc
+  --source have_engine.inc
+}
+--echo for child3
+if ($USE_CHILD_GROUP3)
+{
+  --echo child3_1
+  --source connect_child3_1.inc
+  --connection child3_1
+  CALL mtr.add_suppression("unknown variable *");
+  SET SESSION sql_log_bin= 0;
+  --let $CHILD3_1_SERVER_ID=`SELECT @@global.server_id`
+  --let $TEST_ENGINE_TYPE= $CHILD3_1_ENGINE_TYPE
+  --source ../include/init_child3_1.inc
+  --source have_engine.inc
+  --echo child3_2
+  --source connect_child3_2.inc
+  --connection child3_2
+  CALL mtr.add_suppression("unknown variable *");
+  SET SESSION sql_log_bin= 0;
+  --let $CHILD3_2_SERVER_ID=`SELECT @@global.server_id`
+  --let $TEST_ENGINE_TYPE= $CHILD3_2_ENGINE_TYPE
+  --source ../include/init_child3_2.inc
+  --source have_engine.inc
+  --echo child3_3
+  --source connect_child3_3.inc
+  --connection child3_3
+  CALL mtr.add_suppression("unknown variable *");
+  SET SESSION sql_log_bin= 0;
+  --let $CHILD3_3_SERVER_ID=`SELECT @@global.server_id`
+  --let $TEST_ENGINE_TYPE= $CHILD3_3_ENGINE_TYPE
+  --source ../include/init_child3_3.inc
+  --source have_engine.inc
+}
diff --git a/storage/spider/mysql-test/spider/oracle/t/vp_fixes.test b/storage/spider/mysql-test/spider/oracle/t/vp_fixes.test
new file mode 100644
index 00000000..90380227
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle/t/vp_fixes.test
@@ -0,0 +1,335 @@
+# This test tests for VP's bug fixes
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table and insert
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tb_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+eval CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+--enable_query_log
+INSERT INTO tb_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+
+--echo
+--echo 0.9
+--echo create different primary key table
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_result_log
+  }
+  --disable_query_log
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    echo CHILD2_1_DROP_TABLES5;
+    echo CHILD2_1_CREATE_TABLES5;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES5;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES5;
+  --enable_query_log
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_query_log
+echo CREATE TABLE ta_l_int (
+  a INT DEFAULT 10,
+  b INT AUTO_INCREMENT,
+  c INT DEFAULT 11,
+  PRIMARY KEY(b)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1;
+eval CREATE TABLE ta_l_int (
+  a INT DEFAULT 10,
+  b INT AUTO_INCREMENT,
+  c INT DEFAULT 11,
+  PRIMARY KEY(b)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+--enable_query_log
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--let $MASTER_1_IS_VP= `SELECT IF('$MASTER_1_ENGINE_TYPE' = 'VP', 1, 0)`
+if ($MASTER_1_IS_VP)
+{
+  --error 14514
+  INSERT INTO ta_l_int (a, b, c) VALUES (2, NULL, 3);
+}
+if (!$MASTER_1_IS_VP)
+{
+  INSERT INTO ta_l_int (a, b, c) VALUES (2, NULL, 3);
+  --disable_query_log
+  --disable_result_log
+  TRUNCATE TABLE ta_l_int;
+  --enable_query_log
+  --enable_result_log
+}
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES5;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo create un-correspond primary key table
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l_int;
+--enable_warnings
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_result_log
+  }
+  --disable_query_log
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    echo CHILD2_1_DROP_TABLES5;
+    echo CHILD2_1_CREATE_TABLES5;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES5;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES5;
+  --enable_query_log
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_query_log
+echo CREATE TABLE ta_l_int (
+  a INT DEFAULT 10,
+  b INT DEFAULT 12,
+  c INT DEFAULT 11,
+  PRIMARY KEY(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1;
+eval CREATE TABLE ta_l_int (
+  a INT DEFAULT 10,
+  b INT DEFAULT 12,
+  c INT DEFAULT 11,
+  PRIMARY KEY(c)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+--enable_query_log
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+if ($MASTER_1_IS_VP)
+{
+  --error 14514
+  INSERT INTO ta_l_int (a, b, c) VALUES (2, NULL, 3);
+}
+if (!$MASTER_1_IS_VP)
+{
+  INSERT INTO ta_l_int (a, b, c) VALUES (2, NULL, 3);
+  --disable_query_log
+  --disable_result_log
+  TRUNCATE TABLE ta_l_int;
+  --enable_query_log
+  --enable_result_log
+}
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES5;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/oracle2/include/deinit_child2_1.inc b/storage/spider/mysql-test/spider/oracle2/include/deinit_child2_1.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/deinit_child2_1.inc
diff --git a/storage/spider/mysql-test/spider/oracle2/include/deinit_child2_2.inc b/storage/spider/mysql-test/spider/oracle2/include/deinit_child2_2.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/deinit_child2_2.inc
diff --git a/storage/spider/mysql-test/spider/oracle2/include/deinit_child2_3.inc b/storage/spider/mysql-test/spider/oracle2/include/deinit_child2_3.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/deinit_child2_3.inc
diff --git a/storage/spider/mysql-test/spider/oracle2/include/deinit_child3_1.inc b/storage/spider/mysql-test/spider/oracle2/include/deinit_child3_1.inc
new file mode 100644
index 00000000..74c8efa9
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/deinit_child3_1.inc
@@ -0,0 +1,3 @@
+--let $TEST_ENGINE_TYPE= $CHILD3_1_ENGINE_TYPE
+--let $INIT_TEST_ENGINE= $INIT_CHILD3_1_ENGINE
+--source ../../include/deinit_engine.inc
diff --git a/storage/spider/mysql-test/spider/oracle2/include/deinit_child3_2.inc b/storage/spider/mysql-test/spider/oracle2/include/deinit_child3_2.inc
new file mode 100644
index 00000000..f42a980a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/deinit_child3_2.inc
@@ -0,0 +1,3 @@
+--let $TEST_ENGINE_TYPE= $CHILD3_2_ENGINE_TYPE
+--let $INIT_TEST_ENGINE= $INIT_CHILD3_2_ENGINE
+--source ../../include/deinit_engine.inc
diff --git a/storage/spider/mysql-test/spider/oracle2/include/deinit_child3_3.inc b/storage/spider/mysql-test/spider/oracle2/include/deinit_child3_3.inc
new file mode 100644
index 00000000..0696fb99
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/deinit_child3_3.inc
@@ -0,0 +1,3 @@
+--let $TEST_ENGINE_TYPE= $CHILD3_3_ENGINE_TYPE
+--let $INIT_TEST_ENGINE= $INIT_CHILD3_3_ENGINE
+--source ../../include/deinit_engine.inc
diff --git a/storage/spider/mysql-test/spider/oracle2/include/deinit_master_1.inc b/storage/spider/mysql-test/spider/oracle2/include/deinit_master_1.inc
new file mode 100644
index 00000000..c19e376d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/deinit_master_1.inc
@@ -0,0 +1 @@
+--source ../../include/deinit_spider.inc
diff --git a/storage/spider/mysql-test/spider/oracle2/include/deinit_slave1_1.inc b/storage/spider/mysql-test/spider/oracle2/include/deinit_slave1_1.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/deinit_slave1_1.inc
diff --git a/storage/spider/mysql-test/spider/oracle2/include/ha_deinit_child2_1.inc b/storage/spider/mysql-test/spider/oracle2/include/ha_deinit_child2_1.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/ha_deinit_child2_1.inc
diff --git a/storage/spider/mysql-test/spider/oracle2/include/ha_deinit_child2_2.inc b/storage/spider/mysql-test/spider/oracle2/include/ha_deinit_child2_2.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/ha_deinit_child2_2.inc
diff --git a/storage/spider/mysql-test/spider/oracle2/include/ha_deinit_child2_3.inc b/storage/spider/mysql-test/spider/oracle2/include/ha_deinit_child2_3.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/ha_deinit_child2_3.inc
diff --git a/storage/spider/mysql-test/spider/oracle2/include/ha_deinit_child3_1.inc b/storage/spider/mysql-test/spider/oracle2/include/ha_deinit_child3_1.inc
new file mode 100644
index 00000000..c19e376d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/ha_deinit_child3_1.inc
@@ -0,0 +1 @@
+--source ../../include/deinit_spider.inc
diff --git a/storage/spider/mysql-test/spider/oracle2/include/ha_deinit_child3_2.inc b/storage/spider/mysql-test/spider/oracle2/include/ha_deinit_child3_2.inc
new file mode 100644
index 00000000..c19e376d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/ha_deinit_child3_2.inc
@@ -0,0 +1 @@
+--source ../../include/deinit_spider.inc
diff --git a/storage/spider/mysql-test/spider/oracle2/include/ha_deinit_child3_3.inc b/storage/spider/mysql-test/spider/oracle2/include/ha_deinit_child3_3.inc
new file mode 100644
index 00000000..c19e376d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/ha_deinit_child3_3.inc
@@ -0,0 +1 @@
+--source ../../include/deinit_spider.inc
diff --git a/storage/spider/mysql-test/spider/oracle2/include/ha_deinit_master_1.inc b/storage/spider/mysql-test/spider/oracle2/include/ha_deinit_master_1.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/ha_deinit_master_1.inc
diff --git a/storage/spider/mysql-test/spider/oracle2/include/ha_init_child2_1.inc b/storage/spider/mysql-test/spider/oracle2/include/ha_init_child2_1.inc
new file mode 100644
index 00000000..26848294
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/ha_init_child2_1.inc
@@ -0,0 +1,8 @@
+let $CHILD2_1_HA_AS_DROP_TABLES=
+  $CHILD2_1_DROP_TABLES;
+let $CHILD2_1_HA_AS_CREATE_TABLES=
+  $CHILD2_1_CREATE_TABLES;
+let $CHILD2_1_HA_AS_DROP_TABLES2=
+  $CHILD2_1_DROP_TABLES2;
+let $CHILD2_1_HA_AS_CREATE_TABLES2=
+  $CHILD2_1_CREATE_TABLES2;
diff --git a/storage/spider/mysql-test/spider/oracle2/include/ha_init_child2_2.inc b/storage/spider/mysql-test/spider/oracle2/include/ha_init_child2_2.inc
new file mode 100644
index 00000000..205eaa6f
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/ha_init_child2_2.inc
@@ -0,0 +1,4 @@
+let $CHILD2_2_HA_DROP_TABLES=
+  $CHILD2_2_DROP_TABLES;
+let $CHILD2_2_HA_CREATE_TABLES=
+  $CHILD2_2_CREATE_TABLES;
diff --git a/storage/spider/mysql-test/spider/oracle2/include/ha_init_child2_3.inc b/storage/spider/mysql-test/spider/oracle2/include/ha_init_child2_3.inc
new file mode 100644
index 00000000..55cb8583
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/ha_init_child2_3.inc
@@ -0,0 +1,4 @@
+let $CHILD2_3_HA_DROP_TABLES=
+  $CHILD2_3_DROP_TABLES;
+let $CHILD2_3_HA_CREATE_TABLES=
+  $CHILD2_3_CREATE_TABLES;
diff --git a/storage/spider/mysql-test/spider/oracle2/include/ha_init_child3_1.inc b/storage/spider/mysql-test/spider/oracle2/include/ha_init_child3_1.inc
new file mode 100644
index 00000000..8357f0bd
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/ha_init_child3_1.inc
@@ -0,0 +1,140 @@
+--let $CHILD3_1_ENGINE_TYPE=Spider
+--let $CHILD3_1_ENGINE=ENGINE=Spider
+--source ../include/init_spider.inc
+eval INSERT INTO mysql.spider_link_mon_servers
+(db_name, table_name, link_id, sid, server, scheme, host, port, socket,
+ username, password, ssl_ca, ssl_capath, ssl_cert, ssl_cipher, ssl_key,
+ ssl_verify_server_cert, default_file, default_group) VALUES
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_1_SERVER_ID, 's_3_1', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_2_SERVER_ID, 's_3_2', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_3_SERVER_ID, 's_3_3', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL);
+let $CHILD3_1_CHECK_LINK_STATUS=
+  SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+  ORDER BY db_name, table_name, link_id;
+let $CHILD3_1_CHECK_LINK_FAILED_LOG=
+  SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+let $CHILD3_1_SET_RECOVERY_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 2"';
+let $CHILD3_1_SET_OK_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 1"';
+let $CHILD3_1_SET_OK_STATUS_AS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+  database "auto_test_remote auto_test_remote2", lst "1 0"';
+
+let $CHILD3_1_DROP_TABLES_HA_2_1=
+  DROP TABLE IF EXISTS ta_l;
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $CHILD3_1_CREATE_TABLES_HA_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_1_ENGINE $CHILD3_1_CHARSET
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $CHILD3_1_CREATE_TABLES_HA_AS_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_1_ENGINE $CHILD3_1_CHARSET
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $CHILD3_1_CREATE_TABLES_HA_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_1_ENGINE $CHILD3_1_CHARSET
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $CHILD3_1_CREATE_TABLES_HA_AS_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_1_ENGINE $CHILD3_1_CHARSET
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+let $CHILD3_1_DROP_TABLES_HA_P_2_1=
+  DROP TABLE IF EXISTS ta_l2;
+let $CHILD3_1_CREATE_TABLES_HA_P_2_1=
+  CREATE TABLE ta_l2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD3_1_ENGINE $CHILD3_1_CHARSET
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $CHILD3_1_CREATE_TABLES_HA_AS_P_2_1=
+  CREATE TABLE ta_l2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD3_1_ENGINE $CHILD3_1_CHARSET
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $CHILD3_1_SET_RECOVERY_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 2"'
+  );
+let $CHILD3_1_SET_OK_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 1"'
+  );
+let $CHILD3_1_SET_OK_STATUS_AS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "1 0"'
+  );
diff --git a/storage/spider/mysql-test/spider/oracle2/include/ha_init_child3_2.inc b/storage/spider/mysql-test/spider/oracle2/include/ha_init_child3_2.inc
new file mode 100644
index 00000000..3ffcec24
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/ha_init_child3_2.inc
@@ -0,0 +1,140 @@
+--let $CHILD3_2_ENGINE_TYPE=Spider
+--let $CHILD3_2_ENGINE=ENGINE=Spider
+--source ../include/init_spider.inc
+eval INSERT INTO mysql.spider_link_mon_servers
+(db_name, table_name, link_id, sid, server, scheme, host, port, socket,
+ username, password, ssl_ca, ssl_capath, ssl_cert, ssl_cipher, ssl_key,
+ ssl_verify_server_cert, default_file, default_group) VALUES
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_1_SERVER_ID, 's_3_1', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_2_SERVER_ID, 's_3_2', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_3_SERVER_ID, 's_3_3', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL);
+let $CHILD3_2_CHECK_LINK_STATUS=
+  SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+  ORDER BY db_name, table_name, link_id;
+let $CHILD3_2_CHECK_LINK_FAILED_LOG=
+  SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+let $CHILD3_2_SET_RECOVERY_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 2"';
+let $CHILD3_2_SET_OK_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 1"';
+let $CHILD3_2_SET_OK_STATUS_AS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+  database "auto_test_remote auto_test_remote2", lst "1 0"';
+
+let $CHILD3_2_DROP_TABLES_HA_2_1=
+  DROP TABLE IF EXISTS ta_l;
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $CHILD3_2_CREATE_TABLES_HA_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_2_ENGINE $CHILD3_2_CHARSET
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $CHILD3_2_CREATE_TABLES_HA_AS_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_2_ENGINE $CHILD3_2_CHARSET
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $CHILD3_2_CREATE_TABLES_HA_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_2_ENGINE $CHILD3_2_CHARSET
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $CHILD3_2_CREATE_TABLES_HA_AS_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_2_ENGINE $CHILD3_2_CHARSET
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+let $CHILD3_2_DROP_TABLES_HA_P_2_1=
+  DROP TABLE IF EXISTS ta_l2;
+let $CHILD3_2_CREATE_TABLES_HA_P_2_1=
+  CREATE TABLE ta_l2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD3_2_ENGINE $CHILD3_2_CHARSET
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $CHILD3_2_CREATE_TABLES_HA_AS_P_2_1=
+  CREATE TABLE ta_l2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD3_2_ENGINE $CHILD3_2_CHARSET
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $CHILD3_2_SET_RECOVERY_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 2"'
+  );
+let $CHILD3_2_SET_OK_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 1"'
+  );
+let $CHILD3_2_SET_OK_STATUS_AS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "1 0"'
+  );
diff --git a/storage/spider/mysql-test/spider/oracle2/include/ha_init_child3_3.inc b/storage/spider/mysql-test/spider/oracle2/include/ha_init_child3_3.inc
new file mode 100644
index 00000000..67bd0010
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/ha_init_child3_3.inc
@@ -0,0 +1,140 @@
+--let $CHILD3_3_ENGINE_TYPE=Spider
+--let $CHILD3_3_ENGINE=ENGINE=Spider
+--source ../include/init_spider.inc
+eval INSERT INTO mysql.spider_link_mon_servers
+(db_name, table_name, link_id, sid, server, scheme, host, port, socket,
+ username, password, ssl_ca, ssl_capath, ssl_cert, ssl_cipher, ssl_key,
+ ssl_verify_server_cert, default_file, default_group) VALUES
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_1_SERVER_ID, 's_3_1', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_2_SERVER_ID, 's_3_2', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_3_SERVER_ID, 's_3_3', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL);
+let $CHILD3_3_CHECK_LINK_STATUS=
+  SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+  ORDER BY db_name, table_name, link_id;
+let $CHILD3_3_CHECK_LINK_FAILED_LOG=
+  SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+let $CHILD3_3_SET_RECOVERY_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 2"';
+let $CHILD3_3_SET_OK_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 1"';
+let $CHILD3_3_SET_OK_STATUS_AS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "localhost", user "root", password "",
+  msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+  database "auto_test_remote auto_test_remote2", lst "1 0"';
+
+let $CHILD3_3_DROP_TABLES_HA_2_1=
+  DROP TABLE IF EXISTS ta_l;
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $CHILD3_3_CREATE_TABLES_HA_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_3_ENGINE $CHILD3_3_CHARSET
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $CHILD3_3_CREATE_TABLES_HA_AS_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_3_ENGINE $CHILD3_3_CHARSET
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $CHILD3_3_CREATE_TABLES_HA_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_3_ENGINE $CHILD3_3_CHARSET
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "auto_test_remote auto_test_remote2"';
+  let $CHILD3_3_CREATE_TABLES_HA_AS_2_1=
+    CREATE TABLE ta_l (
+      a INT DEFAULT 10,
+      b CHAR(1) DEFAULT 'c',
+      c DATETIME DEFAULT '1999-10-10 10:10:10',
+      PRIMARY KEY(a)
+    ) $CHILD3_3_ENGINE $CHILD3_3_CHARSET
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3"'
+    CONNECTION='host "localhost", user "root", password "",
+    msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "auto_test_remote auto_test_remote2"';
+}
+let $CHILD3_3_DROP_TABLES_HA_P_2_1=
+  DROP TABLE IF EXISTS ta_l2;
+let $CHILD3_3_CREATE_TABLES_HA_P_2_1=
+  CREATE TABLE ta_l2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD3_3_ENGINE $CHILD3_3_CHARSET
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $CHILD3_3_CREATE_TABLES_HA_AS_P_2_1=
+  CREATE TABLE ta_l2 (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $CHILD3_3_ENGINE $CHILD3_3_CHARSET
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $CHILD3_3_SET_RECOVERY_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 2"'
+  );
+let $CHILD3_3_SET_OK_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 1"'
+  );
+let $CHILD3_3_SET_OK_STATUS_AS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "1 0"'
+  );
diff --git a/storage/spider/mysql-test/spider/oracle2/include/ha_init_master_1.inc b/storage/spider/mysql-test/spider/oracle2/include/ha_init_master_1.inc
new file mode 100644
index 00000000..8ace39ab
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/ha_init_master_1.inc
@@ -0,0 +1,109 @@
+eval INSERT INTO mysql.spider_link_mon_servers
+(db_name, table_name, link_id, sid, server, scheme, host, port, socket,
+ username, password, ssl_ca, ssl_capath, ssl_cert, ssl_cipher, ssl_key,
+ ssl_verify_server_cert, default_file, default_group) VALUES
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_1_SERVER_ID, 's_3_1', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_2_SERVER_ID, 's_3_2', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL),
+('%auto_test_local%', '%ta_l%', '%', $CHILD3_3_SERVER_ID, 's_3_3', NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL);
+let $MASTER_1_CHECK_LINK_STATUS=
+  SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+  ORDER BY db_name, table_name, link_id;
+let $MASTER_1_CHECK_LINK_FAILED_LOG=
+  SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+let $MASTER_1_SET_RECOVERY_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "$ORACLE_HOST", user "$ORACLE_USER",
+  password "$ORACLE_PASSWORD", msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "$ORACLE_DATABASE", lst "0 2"';
+let $MASTER_1_SET_OK_STATUS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "$ORACLE_HOST", user "$ORACLE_USER",
+  password "$ORACLE_PASSWORD", msi "$CHILD3_1_SERVER_ID", mkd "2",
+  database "$ORACLE_DATABASE", lst "0 1"';
+let $MASTER_1_SET_OK_STATUS_AS_2_1=
+  ALTER TABLE ta_l
+  CONNECTION='host "$ORACLE_HOST", user "$ORACLE_USER",
+  password "$ORACLE_PASSWORD", msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+  database "$ORACLE_DATABASE", lst "1 0"';
+let $MASTER_1_COPY_TABLES_2_1=
+  SELECT spider_copy_tables('ta_l', '0', '1');
+
+if ($VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT_HA_2_1=
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3",
+    wrapper "oracle"'
+    CONNECTION='host "$ORACLE_HOST", user "$ORACLE_USER",
+    password "$ORACLE_PASSWORD", msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "$ORACLE_DATABASE"';
+  let $MASTER_1_COMMENT_HA_AS_2_1=
+    COMMENT='port "$CHILD2_1_MYPORT $CHILD2_2_MYPORT", table "ta_r ta_r3",
+    wrapper "oracle"'
+    CONNECTION='host "$ORACLE_HOST", user "$ORACLE_USER",
+    password "$ORACLE_PASSWORD", msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "$ORACLE_DATABASE"';
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  let $MASTER_1_COMMENT_HA_2_1=
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3",
+    wrapper "oracle"'
+    CONNECTION='host "$ORACLE_HOST", user "$ORACLE_USER",
+    password "$ORACLE_PASSWORD", msi "$CHILD3_1_SERVER_ID", mkd "2",
+    database "$ORACLE_DATABASE"';
+  let $MASTER_1_COMMENT_HA_AS_2_1=
+    COMMENT='socket "$CHILD2_1_MYSOCK $CHILD2_2_MYSOCK", table "ta_r ta_r3",
+    wrapper "oracle"'
+    CONNECTION='host "$ORACLE_HOST", user "$ORACLE_USER",
+    password "$ORACLE_PASSWORD", msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1",
+    database "$ORACLE_DATABASE"';
+}
+let $MASTER_1_COMMENT_HA_P_2_1=
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $MASTER_1_COMMENT_HA_AS_P_2_1=
+  COMMENT='msi "$CHILD3_1_SERVER_ID", mkd "2", alc "1"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001"'
+  );
+let $MASTER_1_SET_RECOVERY_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 2"'
+  );
+let $MASTER_1_SET_OK_STATUS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 1"'
+  );
+let $MASTER_1_SET_OK_STATUS_AS_P_2_1=
+  ALTER TABLE ta_l2
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+    PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "1 0"'
+  );
+let $MASTER_1_COPY_TABLES_P_2_1=
+  SELECT spider_copy_tables('ta_l2#P#pt2', '0', '1');
+let $MASTER_1_CHECK_HA_STATUS=
+  SHOW GLOBAL STATUS LIKE 'Spider_mon_table_cache_version%';
+let $MASTER_1_CHANGE_HA_MON=
+  SELECT spider_flush_table_mon_cache();
diff --git a/storage/spider/mysql-test/spider/oracle2/include/hs_deinit_child2_1.inc b/storage/spider/mysql-test/spider/oracle2/include/hs_deinit_child2_1.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/hs_deinit_child2_1.inc
diff --git a/storage/spider/mysql-test/spider/oracle2/include/hs_deinit_child2_2.inc b/storage/spider/mysql-test/spider/oracle2/include/hs_deinit_child2_2.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/hs_deinit_child2_2.inc
diff --git a/storage/spider/mysql-test/spider/oracle2/include/hs_deinit_child2_3.inc b/storage/spider/mysql-test/spider/oracle2/include/hs_deinit_child2_3.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/hs_deinit_child2_3.inc
diff --git a/storage/spider/mysql-test/spider/oracle2/include/hs_deinit_master_1.inc b/storage/spider/mysql-test/spider/oracle2/include/hs_deinit_master_1.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/hs_deinit_master_1.inc
diff --git a/storage/spider/mysql-test/spider/oracle2/include/hs_init_child2_1.inc b/storage/spider/mysql-test/spider/oracle2/include/hs_init_child2_1.inc
new file mode 100644
index 00000000..f3f92a61
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/hs_init_child2_1.inc
@@ -0,0 +1,24 @@
+let $CHILD2_1_HS_DROP_TABLES=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "hs_r"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_HS_CREATE_TABLES=
+  SELECT spider_direct_sql('CREATE TABLE "hs_r" (
+    "a" INT DEFAULT 10,
+    "b" CHAR(1) DEFAULT \'c\',
+    "c" DATE DEFAULT TO_DATE(\'1999-10-10 10:10:10\', \'YYYY-MM-DD HH24:MI:SS\'),
+    "d" INT DEFAULT 11,
+    CONSTRAINT "pk_s_2_1_hs_r" PRIMARY KEY("a")
+  )', '', 'srv "s_2_1"');
+let $CHILD2_1_HS_SELECT_TABLES=
+  SELECT spider_direct_sql('SELECT "a", "b", TO_CHAR("c", \'YYYY-MM-DD HH24:MI:SS\'), "d" FROM "hs_r" ORDER BY "a"', '', 'srv "s_2_1"');
+let $CHILD2_1_HS_DROP_TABLES2=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "hs_r2"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_HS_CREATE_TABLES2=
+  SELECT spider_direct_sql('CREATE TABLE "hs_r2" (
+    "a" INT DEFAULT 10,
+    "b" CHAR(1) DEFAULT \'c\',
+    "c" DATE DEFAULT TO_DATE(\'1999-10-10 10:10:10\', \'YYYY-MM-DD HH24:MI:SS\'),
+    "d" INT DEFAULT 11,
+    CONSTRAINT "pk_s_2_1_hs_r2" PRIMARY KEY("a")
+  )', '', 'srv "s_2_1"');
+let $CHILD2_1_HS_SELECT_TABLES2=
+  SELECT spider_direct_sql('SELECT "a", "b", TO_CHAR("c", \'YYYY-MM-DD HH24:MI:SS\'), "d" FROM "hs_r2" ORDER BY "a"', '', 'srv "s_2_1"');
diff --git a/storage/spider/mysql-test/spider/oracle2/include/hs_init_child2_2.inc b/storage/spider/mysql-test/spider/oracle2/include/hs_init_child2_2.inc
new file mode 100644
index 00000000..4bd8d49c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/hs_init_child2_2.inc
@@ -0,0 +1,12 @@
+let $CHILD2_2_HS_DROP_TABLES=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "hs_r3"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_2"');
+let $CHILD2_2_HS_CREATE_TABLES=
+  SELECT spider_direct_sql('CREATE TABLE "hs_r3" (
+    "a" INT DEFAULT 10,
+    "b" CHAR(1) DEFAULT \'c\',
+    "c" DATE DEFAULT TO_DATE(\'1999-10-10 10:10:10\', \'YYYY-MM-DD HH24:MI:SS\'),
+    "d" INT DEFAULT 11,
+    CONSTRAINT "pk_s_2_2_hs_r3" PRIMARY KEY("a")
+  )', '', 'srv "s_2_2"');
+let $CHILD2_2_HS_SELECT_TABLES=
+  SELECT spider_direct_sql('SELECT "a", "b", TO_CHAR("c", \'YYYY-MM-DD HH24:MI:SS\'), "d" FROM "hs_r3" ORDER BY "a"', '', 'srv "s_2_2"');
diff --git a/storage/spider/mysql-test/spider/oracle2/include/hs_init_child2_3.inc b/storage/spider/mysql-test/spider/oracle2/include/hs_init_child2_3.inc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/hs_init_child2_3.inc
diff --git a/storage/spider/mysql-test/spider/oracle2/include/hs_init_master_1.inc b/storage/spider/mysql-test/spider/oracle2/include/hs_init_master_1.inc
new file mode 100644
index 00000000..0ff5e2a1
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/hs_init_master_1.inc
@@ -0,0 +1,12 @@
+let $MASTER_1_HS_COMMENT_TMP=
+  COMMENT='';
+let $MASTER_1_HS_COMMENT_2_1=
+  COMMENT='srv "s_2_1", table "hs_r", uhr "1", uhw "1", hrp "$CHILD2_1_HSRPORT", hwp "$CHILD2_1_HSWPORT"';
+let $MASTER_1_HS_COMMENT_P_2_1=
+  COMMENT='uhr "1", uhw "1"'
+  PARTITION BY RANGE(a) (
+    PARTITION pt1 VALUES LESS THAN (4)
+    COMMENT='srv "s_2_1", table "hs_r2", hrp "$CHILD2_1_HSRPORT", hwp "$CHILD2_1_HSWPORT"',
+    PARTITION pt2 VALUES LESS THAN MAXVALUE
+    COMMENT='srv "s_2_2", table "hs_r3", hrp "$CHILD2_2_HSRPORT", hwp "$CHILD2_2_HSWPORT"'
+  );
diff --git a/storage/spider/mysql-test/spider/oracle2/include/init_child2_1.inc b/storage/spider/mysql-test/spider/oracle2/include/init_child2_1.inc
new file mode 100644
index 00000000..c24736ee
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/init_child2_1.inc
@@ -0,0 +1,192 @@
+--connection master_1
+SELECT spider_direct_sql('ALTER SESSION SET NLS_DATE_FORMAT=\'YYYY-MM-DD HH24:MI:SS\'', '', 'srv "s_2_1"');
+SELECT spider_direct_sql('ALTER SESSION SET NLS_TIME_FORMAT=\'HH24:MI:SSXFF\'', '', 'srv "s_2_1"');
+SELECT spider_direct_sql('ALTER SESSION SET NLS_TIMESTAMP_FORMAT=\'YYYY-MM-DD HH24:MI:SSXFF\'', '', 'srv "s_2_1"');
+let $CHILD2_1_DROP_TABLES=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "ta_r"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_CREATE_TABLES=
+  SELECT spider_direct_sql('CREATE TABLE "ta_r" (
+    "a" INT DEFAULT 10,
+    "b" CHAR(1) DEFAULT \'c\',
+    "c" DATE DEFAULT TO_DATE(\'1999-10-10 10:10:10\', \'YYYY-MM-DD HH24:MI:SS\'),
+    CONSTRAINT "pk_s_2_1_ta_r" PRIMARY KEY("a")
+  )', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE INDEX "idx1" ON "ta_r"("b")', '', 'srv "s_2_1"');
+let $CHILD2_1_SELECT_TABLES=
+  SELECT spider_direct_sql('SELECT "a", "b", TO_CHAR("c", \'YYYY-MM-DD HH24:MI:SS\') FROM "ta_r" ORDER BY "a"', '', 'srv "s_2_1"');
+let $CHILD2_1_DROP_TABLES2=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "ta_r2"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_CREATE_TABLES2=
+  SELECT spider_direct_sql('CREATE TABLE "ta_r2" (
+    "a" INT DEFAULT 10,
+    "b" CHAR(1) DEFAULT \'c\',
+    "c" DATE DEFAULT TO_DATE(\'1999-10-10 10:10:10\', \'YYYY-MM-DD HH24:MI:SS\'),
+    CONSTRAINT "pk_s_2_1_ta_r2" PRIMARY KEY("a")
+  )', '', 'srv "s_2_1"');
+let $CHILD2_1_SELECT_TABLES2=
+  SELECT spider_direct_sql('SELECT "a", "b", TO_CHAR("c", \'YYYY-MM-DD HH24:MI:SS\') FROM "ta_r2" ORDER BY "a"', '', 'srv "s_2_1"');
+let $CHILD2_1_DROP_TABLES3=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "ta_r_no_idx"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_CREATE_TABLES3=
+  SELECT spider_direct_sql('CREATE TABLE "ta_r_no_idx" (
+    "a" INT DEFAULT 10,
+    "b" CHAR(1) DEFAULT \'c\',
+    "c" DATE DEFAULT TO_DATE(\'1999-10-10 10:10:10\', \'YYYY-MM-DD HH24:MI:SS\')
+  )', '', 'srv "s_2_1"');
+let $CHILD2_1_SELECT_TABLES3=
+  SELECT spider_direct_sql('SELECT "a", "b", TO_CHAR("c", \'YYYY-MM-DD HH24:MI:SS\') FROM "ta_r_no_idx" ORDER BY "a"', '', 'srv "s_2_1"');
+let $CHILD2_1_DROP_TABLES4=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "ta_r_auto_inc"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_CREATE_TABLES4=
+  SELECT spider_direct_sql('CREATE TABLE "ta_r_auto_inc" (
+    "a" INT DEFAULT 10,
+    "b" CHAR(1) DEFAULT \'c\',
+    "c" DATE DEFAULT TO_DATE(\'1999-10-10 10:10:10\', \'YYYY-MM-DD HH24:MI:SS\'),
+    CONSTRAINT "pk_s_2_1_ta_r_auto_inc" PRIMARY KEY("a")
+  )', '', 'srv "s_2_1"');
+let $CHILD2_1_SELECT_TABLES4=
+  SELECT spider_direct_sql('SELECT "a", "b", TO_CHAR("c", \'YYYY-MM-DD HH24:MI:SS\') FROM "ta_r_auto_inc"
+  ORDER BY "a"', '', 'srv "s_2_1"');
+let $CHILD2_1_DROP_TABLES5=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "s_2_1_ta_r_int"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_CREATE_TABLES5=
+  SELECT spider_direct_sql('CREATE TABLE "s_2_1_ta_r_int" (
+    "a" INT DEFAULT 3,
+    "b" INT DEFAULT 10,
+    "c" INT DEFAULT 11,
+    CONSTRAINT "pk_s_2_1_ta_r_int" PRIMARY KEY("a")
+  )', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE INDEX "idx1_s_2_1_ta_r_int" ON "s_2_1_ta_r_int"("b")', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE INDEX "idx2_s_2_1_ta_r_int" ON "s_2_1_ta_r_int"("c")', '', 'srv "s_2_1"');
+let $CHILD2_1_SELECT_TABLES5=
+  SELECT spider_direct_sql('SELECT "a", "b", "c" FROM "s_2_1_ta_r_int" ORDER BY "a"', '', 'srv "s_2_1"');
+let $CHILD2_1_DROP_TABLES6=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "ta_r_3"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_CREATE_TABLES6=
+  SELECT spider_direct_sql('CREATE TABLE "ta_r_3" (
+    "a" INT DEFAULT 10,
+    "b" CHAR(1) DEFAULT \'c\',
+    "c" DATE DEFAULT TO_DATE(\'1999-10-10 10:10:10\', \'YYYY-MM-DD HH24:MI:SS\')
+  )', '', 'srv "s_2_1"');
+let $CHILD2_1_SELECT_TABLES6=
+  SELECT spider_direct_sql('SELECT "a", "b", TO_CHAR("c", \'YYYY-MM-DD HH24:MI:SS\') FROM "ta_r_3" ORDER BY "a"', '', 'srv "s_2_1"');
+let $CHILD2_1_DROP_FT_TABLES=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "ft_r"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_CREATE_FT_TABLES=
+  SELECT spider_direct_sql('CREATE TABLE "ft_r" (
+    "a" INT DEFAULT 0,
+    "b" TEXT,
+    "c" TEXT,
+    "d" TEXT,
+    CONSTRAINT "pk_s_2_1_ft_r" PRIMARY KEY("a"),
+    FULLTEXT INDEX "ft_idx1"("b"),
+    FULLTEXT INDEX "ft_idx2"("c")
+  )', '', 'srv "s_2_1"');
+let $CHILD2_1_SELECT_FT_TABLES=
+  SELECT spider_direct_sql('SELECT "a", "b", "c", "d" FROM "ft_r" ORDER BY "a"', '', 'srv "s_2_1"');
+let $CHILD2_1_DROP_FT_TABLES2=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "ft_r2"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_CREATE_FT_TABLES2=
+  SELECT spider_direct_sql('CREATE TABLE "ft_r2" (
+    "a" INT DEFAULT 0,
+    "b" TEXT,
+    "c" TEXT,
+    "d" TEXT,
+    CONSTRAINT "pk_s_2_1_ft_r2" PRIMARY KEY("a"),
+    FULLTEXT INDEX "ft_idx1"("b"),
+    FULLTEXT INDEX "ft_idx2"("c")
+  )', '', 'srv "s_2_1"');
+let $CHILD2_1_SELECT_FT_TABLES2=
+  SELECT spider_direct_sql('SELECT "a", "b", "c", "d" FROM "ft_r2" ORDER BY "a"', '', 'srv "s_2_1"');
+let $CHILD2_1_DROP_GM_TABLES=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "gm_r"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_CREATE_GM_TABLES=
+  SELECT spider_direct_sql('CREATE TABLE "gm_r" (
+    "a" INT DEFAULT 0,
+    "b" GEOMETRY NOT NULL,
+    "c" GEOMETRY NOT NULL,
+    CONSTRAINT "pk_s_2_1_gm_r" PRIMARY KEY("a"),
+    SPATIAL INDEX "sp_idx1"("b"),
+    SPATIAL INDEX "sp_idx2"("c")
+  )', '', 'srv "s_2_1"');
+let $CHILD2_1_SELECT_GM_TABLES=
+  SELECT spider_direct_sql('SELECT "a", "b", "c" FROM "gm_r" ORDER BY "a"', '', 'srv "s_2_1"');
+let $CHILD2_1_DROP_GM_TABLES2=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "gm_r2"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_CREATE_GM_TABLES2=
+  SELECT spider_direct_sql('CREATE TABLE "gm_r2" (
+    "a" INT DEFAULT 0,
+    "b" GEOMETRY NOT NULL,
+    "c" GEOMETRY NOT NULL,
+    CONSTRAINT "pk_s_2_1_gm_r2" PRIMARY KEY("a"),
+    SPATIAL INDEX "sp_idx1"("b"),
+    SPATIAL INDEX "sp_idx2"("c")
+  )', '', 'srv "s_2_1"');
+let $CHILD2_1_SELECT_GM_TABLES2=
+  SELECT spider_direct_sql('SELECT "a", "b", "c" FROM "gm_r2" ORDER BY "a"', '', 'srv "s_2_1"');
+let $CHILD2_1_DROP_LOCK_TABLES1=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "t1_1"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_CREATE_LOCK_TABLES1=
+  SELECT spider_direct_sql('CREATE TABLE "t1_1" (
+    "id" INT NOT NULL,
+    CONSTRAINT "pk_s_2_1_t1_1" PRIMARY KEY ("id")
+  )', '', 'srv "s_2_1"');
+let $CHILD2_1_DROP_LOCK_TABLES2=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "t2_2"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_CREATE_LOCK_TABLES2=
+  SELECT spider_direct_sql('CREATE TABLE "t2_2" (
+    "id" INT NOT NULL,
+    CONSTRAINT "pk_s_2_1_t2_2" PRIMARY KEY ("id")
+  )', '', 'srv "s_2_1"');
+let $CHILD2_1_DROP_INCREMENT_TABLES1=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "t1_1"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_CREATE_INCREMENT_TABLES1=
+  SELECT spider_direct_sql('CREATE TABLE "t1_1" (
+    "id" INT NOT NULL,
+    CONSTRAINT "pk_s_2_1_t1_1" PRIMARY KEY ("id")
+  )', '', 'srv "s_2_1"');
+let $CHILD2_1_SELECT_INCREMENT_TABLES1=
+  SELECT spider_direct_sql('SELECT "id" FROM "t1_1" ORDER BY "id"', '', 'srv "s_2_1"');
+let $CHILD2_1_DROP_TEXT_PK_TABLES1=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "t1"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_CREATE_TEXT_PK_TABLES1=
+  SELECT spider_direct_sql('CREATE TABLE "t1" (
+    "a" VARCHAR(255),
+    CONSTRAINT "pk_s_2_1_t1" PRIMARY KEY ("a")
+  )', '', 'srv "s_2_1"');
+let $CHILD2_1_SELECT_TEXT_PK_TABLES1=
+  SELECT spider_direct_sql('SELECT "a" FROM "t1" ORDER BY "a"', '', 'srv "s_2_1"');
+let $CHILD2_1_DROP_TEXT_KEY_TABLES1=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "t1"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"');
+let $CHILD2_1_CREATE_TEXT_KEY_TABLES1=
+  SELECT spider_direct_sql('CREATE TABLE "t1" (
+    "a" VARCHAR(255),
+    "b" VARCHAR(255),
+    "c" VARCHAR(255),
+    CONSTRAINT "pk_s_2_1_t1" PRIMARY KEY ("c")
+  )', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE INDEX "idx1_t1" ON "t1"("a","b")', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE INDEX "idx2_t1" ON "t1"("b")', '', 'srv "s_2_1"');
+let $CHILD2_1_SELECT_TEXT_KEY_TABLES1=
+  SELECT spider_direct_sql('SELECT "a", "b", "c" FROM "t1" ORDER BY "c"', '', 'srv "s_2_1"');
+let $CHILD2_1_AUTO_INCREMENT_INCREMENT1=
+  SELECT spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_1"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE SEQUENCE "seq_t1_1" START WITH 1 INCREMENT BY 1', '', 'srv "s_2_1"');
+let $CHILD2_1_AUTO_INCREMENT_INCREMENT2=
+  SELECT spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_1"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE SEQUENCE "seq_t1_1" START WITH 2 INCREMENT BY 4', '', 'srv "s_2_1"');
+let $CHILD2_1_AUTO_INCREMENT_OFFSET1=
+  SELECT spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_1"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE SEQUENCE "seq_t1_1" START WITH 1 INCREMENT BY 1', '', 'srv "s_2_1"');
+let $CHILD2_1_AUTO_INCREMENT_OFFSET2=
+  SELECT spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_1"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE SEQUENCE "seq_t1_1" START WITH 2 INCREMENT BY 4', '', 'srv "s_2_1"');
diff --git a/storage/spider/mysql-test/spider/oracle2/include/init_child2_2.inc b/storage/spider/mysql-test/spider/oracle2/include/init_child2_2.inc
new file mode 100644
index 00000000..fd4497c0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/init_child2_2.inc
@@ -0,0 +1,94 @@
+--connection master_1
+SELECT spider_direct_sql('ALTER SESSION SET NLS_DATE_FORMAT=\'YYYY-MM-DD HH24:MI:SS\'', '', 'srv "s_2_2"');
+SELECT spider_direct_sql('ALTER SESSION SET NLS_TIME_FORMAT=\'HH24:MI:SSXFF\'', '', 'srv "s_2_2"');
+SELECT spider_direct_sql('ALTER SESSION SET NLS_TIMESTAMP_FORMAT=\'YYYY-MM-DD HH24:MI:SSXFF\'', '', 'srv "s_2_2"');
+let $CHILD2_2_DROP_TABLES=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "ta_r3"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_2"');
+let $CHILD2_2_CREATE_TABLES=
+  SELECT spider_direct_sql('CREATE TABLE "ta_r3" (
+    "a" INT DEFAULT 10,
+    "b" CHAR(1) DEFAULT \'c\',
+    "c" DATE DEFAULT TO_DATE(\'1999-10-10 10:10:10\', \'YYYY-MM-DD HH24:MI:SS\'),
+    CONSTRAINT "pk_s_2_2_ta_r3" PRIMARY KEY("a")
+  )', '', 'srv "s_2_2"');
+let $CHILD2_2_DROP_TABLES5=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "s_2_2_ta_r_int"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_2"');
+let $CHILD2_2_CREATE_TABLES5=
+  SELECT spider_direct_sql('CREATE TABLE "s_2_2_ta_r_int" (
+    "a" INT DEFAULT 3,
+    "b" INT DEFAULT 10,
+    "c" INT DEFAULT 11,
+    CONSTRAINT "pk_s_2_2_ta_r_int" PRIMARY KEY("a")
+  )', '', 'srv "s_2_2"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE INDEX "idx1_s_2_2_ta_r_int" ON "s_2_2_ta_r_int"("b")', '', 'srv "s_2_2"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE INDEX "idx2_s_2_2_ta_r_int" ON "s_2_2_ta_r_int"("c")', '', 'srv "s_2_2"');
+let $CHILD2_2_SELECT_TABLES=
+  SELECT spider_direct_sql('SELECT "a", "b", TO_CHAR("c", \'YYYY-MM-DD HH24:MI:SS\') FROM "ta_r3" ORDER BY "a"', '', 'srv "s_2_2"');
+let $CHILD2_2_DROP_FT_TABLES=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "ft_r3"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_2"');
+let $CHILD2_2_CREATE_FT_TABLES=
+  SELECT spider_direct_sql('CREATE TABLE "ft_r3" (
+    "a" INT DEFAULT 0,
+    "b" TEXT,
+    "c" TEXT,
+    "d" TEXT,
+    CONSTRAINT "pk_s_2_2_ft_r3" PRIMARY KEY("a"),
+    FULLTEXT INDEX "ft_idx1"("b"),
+    FULLTEXT INDEX "ft_idx2"("c")
+  )', '', 'srv "s_2_2"');
+let $CHILD2_2_SELECT_FT_TABLES=
+  SELECT spider_direct_sql('SELECT "a", "b", "c", "d" FROM "ft_r3" ORDER BY "a"', '', 'srv "s_2_2"');
+let $CHILD2_2_DROP_GM_TABLES=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "gm_r3"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_2"');
+let $CHILD2_2_CREATE_GM_TABLES=
+  SELECT spider_direct_sql('CREATE TABLE "gm_r3" (
+    "a" INT DEFAULT 0,
+    "b" GEOMETRY NOT NULL,
+    "c" GEOMETRY NOT NULL,
+    CONSTRAINT "pk_s_2_2_gm_r3" PRIMARY KEY("a"),
+    SPATIAL INDEX "sp_idx1"("b"),
+    SPATIAL INDEX "sp_idx2"("c")
+  )', '', 'srv "s_2_2"');
+let $CHILD2_2_SELECT_GM_TABLES=
+  SELECT spider_direct_sql('SELECT "a", "b", "c" FROM "gm_r3" ORDER BY "a"', '', 'srv "s_2_2"');
+let $CHILD2_2_DROP_LOCK_TABLES1=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "t1_2"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_2"');
+let $CHILD2_2_CREATE_LOCK_TABLES1=
+  SELECT spider_direct_sql('CREATE TABLE "t1_2" (
+    "id" INT NOT NULL,
+    CONSTRAINT "pk_s_2_2_t1_2" PRIMARY KEY ("id")
+  )', '', 'srv "s_2_2"');
+let $CHILD2_2_DROP_LOCK_TABLES2=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "t2_1"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_2"');
+let $CHILD2_2_CREATE_LOCK_TABLES2=
+  SELECT spider_direct_sql('CREATE TABLE "t2_1" (
+    "id" INT NOT NULL,
+    CONSTRAINT "pk_s_2_2_t2_1" PRIMARY KEY ("id")
+  )', '', 'srv "s_2_2"');
+let $CHILD2_2_DROP_INCREMENT_TABLES1=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "t1_2"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_2"');
+let $CHILD2_2_CREATE_INCREMENT_TABLES1=
+  SELECT spider_direct_sql('CREATE TABLE "t1_2" (
+    "id" INT NOT NULL,
+    CONSTRAINT "pk_s_2_2_t1_2" PRIMARY KEY ("id")
+  )', '', 'srv "s_2_2"');
+let $CHILD2_2_SELECT_INCREMENT_TABLES1=
+  SELECT spider_direct_sql('SELECT "id" FROM "t1_2" ORDER BY "id"', '', 'srv "s_2_2"');
+let $CHILD2_2_AUTO_INCREMENT_INCREMENT1=
+  SELECT spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_2"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_2"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE SEQUENCE "seq_t1_2" START WITH 1 INCREMENT BY 1', '', 'srv "s_2_2"');
+let $CHILD2_2_AUTO_INCREMENT_INCREMENT2=
+  SELECT spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_2"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_2"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE SEQUENCE "seq_t1_2" START WITH 3 INCREMENT BY 4', '', 'srv "s_2_2"');
+let $CHILD2_2_AUTO_INCREMENT_OFFSET1=
+  SELECT spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_2"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_2"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE SEQUENCE "seq_t1_2" START WITH 1 INCREMENT BY 1', '', 'srv "s_2_2"');
+let $CHILD2_2_AUTO_INCREMENT_OFFSET2=
+  SELECT spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_2"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_2"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE SEQUENCE "seq_t1_2" START WITH 3 INCREMENT BY 4', '', 'srv "s_2_2"');
diff --git a/storage/spider/mysql-test/spider/oracle2/include/init_child2_3.inc b/storage/spider/mysql-test/spider/oracle2/include/init_child2_3.inc
new file mode 100644
index 00000000..e16dfeff
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/init_child2_3.inc
@@ -0,0 +1,15 @@
+--connection master_1
+SELECT spider_direct_sql('ALTER SESSION SET NLS_DATE_FORMAT=\'YYYY-MM-DD HH24:MI:SS\'', '', 'srv "s_2_3"');
+SELECT spider_direct_sql('ALTER SESSION SET NLS_TIME_FORMAT=\'HH24:MI:SSXFF\'', '', 'srv "s_2_3"');
+SELECT spider_direct_sql('ALTER SESSION SET NLS_TIMESTAMP_FORMAT=\'YYYY-MM-DD HH24:MI:SSXFF\'', '', 'srv "s_2_3"');
+let $CHILD2_3_DROP_TABLES=
+  SELECT spider_direct_sql('begin execute immediate \'DROP TABLE "ta_r4"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_3"');
+let $CHILD2_3_CREATE_TABLES=
+  SELECT spider_direct_sql('CREATE TABLE "ta_r4" (
+    "a" INT DEFAULT 10,
+    "b" CHAR(1) DEFAULT \'c\',
+    "c" DATE DEFAULT TO_DATE(\'1999-10-10 10:10:10\', \'YYYY-MM-DD HH24:MI:SS\'),
+    CONSTRAINT "pk_s_2_3_ta_r4" PRIMARY KEY("a")
+  )', '', 'srv "s_2_3"');
+let $CHILD2_3_SELECT_TABLES=
+  SELECT spider_direct_sql('SELECT "a", "b", TO_CHAR("c", \'YYYY-MM-DD HH24:MI:SS\') FROM "ta_r4" ORDER BY "a"', '', 'srv "s_2_3"');
diff --git a/storage/spider/mysql-test/spider/oracle2/include/init_child3_1.inc b/storage/spider/mysql-test/spider/oracle2/include/init_child3_1.inc
new file mode 100644
index 00000000..d2d308cb
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/init_child3_1.inc
@@ -0,0 +1,3 @@
+--let $TEST_ENGINE_TYPE= $CHILD3_1_ENGINE_TYPE
+--source ../../include/init_engine.inc
+--let $INIT_CHILD3_1_ENGINE= $INIT_TEST_ENGINE
diff --git a/storage/spider/mysql-test/spider/oracle2/include/init_child3_2.inc b/storage/spider/mysql-test/spider/oracle2/include/init_child3_2.inc
new file mode 100644
index 00000000..3fbe1bd5
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/init_child3_2.inc
@@ -0,0 +1,3 @@
+--let $TEST_ENGINE_TYPE= $CHILD3_2_ENGINE_TYPE
+--source ../../include/init_engine.inc
+--let $INIT_CHILD3_2_ENGINE= $INIT_TEST_ENGINE
diff --git a/storage/spider/mysql-test/spider/oracle2/include/init_child3_3.inc b/storage/spider/mysql-test/spider/oracle2/include/init_child3_3.inc
new file mode 100644
index 00000000..3c7aaa8a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/init_child3_3.inc
@@ -0,0 +1,3 @@
+--let $TEST_ENGINE_TYPE= $CHILD3_3_ENGINE_TYPE
+--source ../../include/init_engine.inc
+--let $INIT_CHILD3_3_ENGINE= $INIT_TEST_ENGINE
diff --git a/storage/spider/mysql-test/spider/oracle2/include/init_master_1.inc b/storage/spider/mysql-test/spider/oracle2/include/init_master_1.inc
new file mode 100644
index 00000000..00c6f544
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/init_master_1.inc
@@ -0,0 +1,150 @@
+--source ../include/init_spider.inc
+SET spider_direct_order_limit= 10000;
+SET spider_init_sql_alloc_size= 1;
+SET spider_conn_recycle_mode= 2;
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='database "$ORACLE_DATABASE", table "ta_r", wrapper "oracle",
+  pk_name "pk_s_2_1_ta_r"'
+  CONNECTION='host "$ORACLE_HOST", port "$ORACLE_PORT", user "$ORACLE_USER",
+  password "$ORACLE_PASSWORD"';
+let $MASTER_1_COMMENT2_2_1=
+  COMMENT='database "$ORACLE_DATABASE", table "ta_r_no_idx", wrapper "oracle",
+  pk_name "pk_s_2_1_ta_r_no_idx"'
+  CONNECTION='host "$ORACLE_HOST", port "$ORACLE_PORT", user "$ORACLE_USER",
+  password "$ORACLE_PASSWORD", prt "2000000"';
+let $MASTER_1_COMMENT_P_2_1=
+  COMMENT='table "ta_r3"'
+  PARTITION BY KEY(a) (
+    PARTITION pt1 COMMENT='srv "s_2_1", table "ta_r2",
+    priority "1000", pk_name "pk_s_2_1_ta_r2"',
+    PARTITION pt2 COMMENT='srv "s_2_2", priority "1000001",
+    pk_name "pk_s_2_2_ta_r3"'
+  );
+let $MASTER_1_COMMENT2_P_2_1=
+  COMMENT='table "ta_r3"'
+  PARTITION BY RANGE(a) (
+    PARTITION pt1 VALUES LESS THAN (4) COMMENT='srv "s_2_1",
+    table "ta_r2", priority "1000", pk_name "pk_s_2_1_ta_r2"',
+    PARTITION pt2 VALUES LESS THAN MAXVALUE
+    COMMENT='srv "s_2_2", priority "1000001", pk_name "pk_s_2_2_ta_r3"'
+  );
+let $MASTER_1_COMMENT3_2_1=
+  COMMENT='database "$ORACLE_DATABASE", table "ta_r_auto_inc",
+  wrapper "oracle"'
+  CONNECTION='host "$ORACLE_HOST", port "$ORACLE_PORT", user "$ORACLE_USER",
+  password "$ORACLE_PASSWORD", pk_name "pk_s_2_1_ta_r_auto_inc"';
+let $MASTER_1_COMMENT3_P_2_1=
+  COMMENT='table "s_2_1_ta_r_int"'
+  PARTITION BY LIST(MOD(a, 2)) (
+    PARTITION pt1 VALUES IN (0)
+    COMMENT='srv "s_2_1", priority "1000", pk_name "pk_s_2_1_ta_r_int"',
+    PARTITION pt2 VALUES IN (1)
+    COMMENT='srv "s_2_2", priority "1000001", pk_name "pk_s_2_2_ta_r_int",
+    table "s_2_2_ta_r_int"'
+  );
+let $MASTER_1_COMMENT4_2_1=
+  COMMENT='database "$ORACLE_DATABASE", table "s_2_1_ta_r_int",
+  wrapper "oracle"'
+  CONNECTION='host "$ORACLE_HOST", port "$ORACLE_PORT", user "$ORACLE_USER",
+  password "$ORACLE_PASSWORD", pk_name "pk_s_2_1_ta_r_int"';
+let $MASTER_1_COMMENT5_2_1=
+  COMMENT='database "$ORACLE_DATABASE", table "ta_r_3", wrapper "oracle"'
+  CONNECTION='host "$ORACLE_HOST", port "$ORACLE_PORT", user "$ORACLE_USER",
+  password "$ORACLE_PASSWORD", pk_name "pk_s_2_1_ta_r_3"';
+let $MASTER_1_COMMENT_FT_2_1=
+  COMMENT='database "$ORACLE_DATABASE", table "ft_r", wrapper "oracle"'
+  CONNECTION='host "$ORACLE_HOST", port "$ORACLE_PORT", user "$ORACLE_USER",
+  password "$ORACLE_PASSWORD", pk_name "pk_s_2_1_ft_r"';
+let $MASTER_1_COMMENT2_FT_P_2_1=
+  COMMENT='table "ft_r3"'
+  PARTITION BY RANGE(a) (
+    PARTITION pt1 VALUES LESS THAN (4) COMMENT='srv "s_2_1",
+    table "ft_r2", priority "1000", pk_name "pk_s_2_1_ft_r2"',
+    PARTITION pt2 VALUES LESS THAN MAXVALUE
+    COMMENT='srv "s_2_2", priority "1000001", pk_name "pk_s_2_2_ft_r3"'
+  );
+let $MASTER_1_COMMENT_GM_2_1=
+  COMMENT='srv "s_2_1", table "gm_r", pk_name "pk_s_2_1_gm_r"';
+let $MASTER_1_COMMENT2_GM_P_2_1=
+  COMMENT='table "gm_r3"'
+  PARTITION BY RANGE(a) (
+    PARTITION pt1 VALUES LESS THAN (4) COMMENT='srv "s_2_1",
+    table "gm_r2", priority "1000", pk_name "pk_s_2_1_gm_r2"',
+    PARTITION pt2 VALUES LESS THAN MAXVALUE
+    COMMENT='srv "s_2_2", priority "1000001", pk_name "pk_s_2_2_gm_r3"'
+  );
+let $MASTER_1_COMMENT_LOCK1=
+  COMMENT 'tbl "t1_1 t1_2", srv "s_2_1 s_2_2",
+  pk_name "pk_s_2_1_t1_1 pk_s_2_2_t1_2"';
+let $MASTER_1_COMMENT_LOCK2=
+  COMMENT 'tbl "t2_1 t2_2", srv "s_2_2 s_2_1",
+  pk_name "pk_s_2_2_t2_1 pk_s_2_1_t2_2"';
+let $MASTER_1_COMMENT_INCREMENT1_1=
+  COMMENT 'aim "2", sqn "seq_t1_1", tbl "t1_1", srv "s_2_1",
+  pk_name "pk_s_2_1_t1_1"';
+let $MASTER_1_COMMENT_INCREMENT1_P_1=
+  COMMENT 'aim "2"'
+  PARTITION BY LIST(MOD(id, 2)) (
+    PARTITION pt1 VALUES IN (0)
+    COMMENT='sqn "seq_t1_1", tbl "t1_1", srv "s_2_1", pk_name "pk_s_2_1_t1_1"',
+    PARTITION pt2 VALUES IN (1)
+    COMMENT='sqn "seq_t1_2", tbl "t1_2", srv "s_2_2", pk_name "pk_s_2_2_t1_2"'
+  );
+let $MASTER_1_COMMENT_READONLY1_1=
+  COMMENT 'read_only_mode "1", tbl "t1_1", srv "s_2_1",
+  pk_name "pk_s_2_1_t1_1"';
+let $MASTER_1_COMMENT_ERROR_MODE1_1=
+  COMMENT 'erm "1", ewm "1", tbl "ter1_1", srv "s_2_1",
+  pk_name "pk_s_2_1_ter1_1"';
+let $MASTER_1_COMMENT_TEXT_PK1_1=
+  COMMENT 'tbl "t1", srv "s_2_1", pk_name "pk_s_2_1_t1"';
+let $MASTER_1_COMMENT_TEXT_KEY1_1=
+  COMMENT 'tbl "t1", srv "s_2_1", pk_name "pk_s_2_1_t1"';
+let $MASTER_1_CHECK_DIRECT_UPDATE_STATUS=
+  SHOW GLOBAL STATUS LIKE 'Spider_direct_update%';
+let $MASTER_1_CHECK_DIRECT_DELETE_STATUS=
+  SHOW GLOBAL STATUS LIKE 'Spider_direct_delete%';
+let $MASTER_1_CHECK_DIRECT_ORDER_LIMIT_STATUS=
+  SHOW GLOBAL STATUS LIKE 'Spider_direct_order_limit%';
+let $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS=
+  SHOW GLOBAL STATUS LIKE 'Spider_direct_aggregate%';
+let $MASTER_1_AUTO_INCREMENT_INCREMENT1=
+  SET SESSION AUTO_INCREMENT_INCREMENT = 1 $STR_SEMICOLON
+  SELECT spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_1"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE SEQUENCE "seq_t1_1" START WITH 1 INCREMENT BY 1', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_2"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_2"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE SEQUENCE "seq_t1_2" START WITH 1 INCREMENT BY 1', '', 'srv "s_2_2"');
+let $MASTER_1_AUTO_INCREMENT_INCREMENT2=
+  SET SESSION AUTO_INCREMENT_INCREMENT = 777 $STR_SEMICOLON
+  SELECT spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_1"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE SEQUENCE "seq_t1_1" START WITH 2 INCREMENT BY 4', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_2"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_2"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE SEQUENCE "seq_t1_2" START WITH 3 INCREMENT BY 4', '', 'srv "s_2_2"');
+let $MASTER_1_AUTO_INCREMENT_OFFSET1=
+  SET SESSION AUTO_INCREMENT_OFFSET = 1 $STR_SEMICOLON
+  SELECT spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_1"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE SEQUENCE "seq_t1_1" START WITH 1 INCREMENT BY 1', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_2"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_2"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE SEQUENCE "seq_t1_2" START WITH 1 INCREMENT BY 1', '', 'srv "s_2_2"');
+let $MASTER_1_AUTO_INCREMENT_OFFSET2=
+  SET SESSION AUTO_INCREMENT_OFFSET = 777 $STR_SEMICOLON
+  SELECT spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_1"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE SEQUENCE "seq_t1_1" START WITH 2 INCREMENT BY 4', '', 'srv "s_2_1"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_2"\'$STR_SEMICOLON exception when others then null$STR_SEMICOLON end$STR_SEMICOLON', '', 'srv "s_2_2"')
+  $STR_SEMICOLON
+  SELECT spider_direct_sql('CREATE SEQUENCE "seq_t1_2" START WITH 3 INCREMENT BY 4', '', 'srv "s_2_2"');
+let $MASTER_1_AUTO_INCREMENT_OFFSET3=
+  SET SESSION AUTO_INCREMENT_OFFSET = 1;
+let $MASTER_1_AUTO_INCREMENT_OFFSET4=
+  SET SESSION AUTO_INCREMENT_OFFSET = 777;
diff --git a/storage/spider/mysql-test/spider/oracle2/include/init_slave1_1.inc b/storage/spider/mysql-test/spider/oracle2/include/init_slave1_1.inc
new file mode 100644
index 00000000..73c3c6b9
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/init_slave1_1.inc
@@ -0,0 +1,10 @@
+let $SLAVE1_1_COMMENT_INCREMENT1_1=
+  COMMENT '';
+let $SLAVE1_1_COMMENT_INCREMENT1_P_1=
+  COMMENT ''
+  PARTITION BY LIST(MOD(id, 2)) (
+    PARTITION pt1 VALUES IN (0)
+    COMMENT='',
+    PARTITION pt2 VALUES IN (1)
+    COMMENT=''
+  );
diff --git a/storage/spider/mysql-test/spider/oracle2/include/init_spider.inc b/storage/spider/mysql-test/spider/oracle2/include/init_spider.inc
new file mode 100644
index 00000000..ff9ac9ae
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/include/init_spider.inc
@@ -0,0 +1,105 @@
+--source ../../include/init_spider.inc
+let $VERSION_COMPILE_OS_WIN=
+  `SELECT IF(@@version_compile_os like 'Win%', 1, 0)`;
+if ($VERSION_COMPILE_OS_WIN)
+{
+  eval DROP SERVER s_2_1;
+  eval CREATE SERVER s_2_1 FOREIGN DATA WRAPPER oracle OPTIONS (
+    HOST '$ORACLE_HOST',
+    DATABASE '$ORACLE_DATABASE',
+    USER '$ORACLE_USER',
+    PASSWORD '$ORACLE_PASSWORD',
+    PORT $ORACLE_PORT
+  );
+  eval DROP SERVER s_2_2;
+  eval CREATE SERVER s_2_2 FOREIGN DATA WRAPPER oracle OPTIONS (
+    HOST '$ORACLE_HOST',
+    DATABASE '$ORACLE_DATABASE',
+    USER '$ORACLE_USER',
+    PASSWORD '$ORACLE_PASSWORD',
+    PORT $ORACLE_PORT
+  );
+  eval DROP SERVER s_2_3;
+  eval CREATE SERVER s_2_3 FOREIGN DATA WRAPPER oracle OPTIONS (
+    HOST '$ORACLE_HOST',
+    DATABASE '$ORACLE_DATABASE',
+    USER '$ORACLE_USER',
+    PASSWORD '$ORACLE_PASSWORD',
+    PORT $ORACLE_PORT
+  );
+  eval DROP SERVER s_3_1;
+  eval CREATE SERVER s_3_1 FOREIGN DATA WRAPPER mysql OPTIONS (
+    HOST 'localhost',
+    DATABASE 'auto_test_local',
+    USER 'root',
+    PASSWORD '',
+    PORT $CHILD3_1_MYPORT
+  );
+  eval DROP SERVER s_3_2;
+  eval CREATE SERVER s_3_2 FOREIGN DATA WRAPPER mysql OPTIONS (
+    HOST 'localhost',
+    DATABASE 'auto_test_local',
+    USER 'root',
+    PASSWORD '',
+    PORT $CHILD3_2_MYPORT
+  );
+  eval DROP SERVER s_3_3;
+  eval CREATE SERVER s_3_3 FOREIGN DATA WRAPPER mysql OPTIONS (
+    HOST 'localhost',
+    DATABASE 'auto_test_local',
+    USER 'root',
+    PASSWORD '',
+    PORT $CHILD2_3_MYPORT
+  );
+}
+if (!$VERSION_COMPILE_OS_WIN)
+{
+  eval DROP SERVER s_2_1;
+  eval CREATE SERVER s_2_1 FOREIGN DATA WRAPPER oracle OPTIONS (
+    HOST '$ORACLE_HOST',
+    DATABASE '$ORACLE_DATABASE',
+    USER '$ORACLE_USER',
+    PASSWORD '$ORACLE_PASSWORD',
+    PORT $ORACLE_PORT
+  );
+  eval DROP SERVER s_2_2;
+  eval CREATE SERVER s_2_2 FOREIGN DATA WRAPPER oracle OPTIONS (
+    HOST '$ORACLE_HOST',
+    DATABASE '$ORACLE_DATABASE',
+    USER '$ORACLE_USER',
+    PASSWORD '$ORACLE_PASSWORD',
+    PORT $ORACLE_PORT
+  );
+  eval DROP SERVER s_2_3;
+  eval CREATE SERVER s_2_3 FOREIGN DATA WRAPPER oracle OPTIONS (
+    HOST '$ORACLE_HOST',
+    DATABASE '$ORACLE_DATABASE',
+    USER '$ORACLE_USER',
+    PASSWORD '$ORACLE_PASSWORD',
+    PORT $ORACLE_PORT
+  );
+  eval DROP SERVER s_3_1;
+  eval CREATE SERVER s_3_1 FOREIGN DATA WRAPPER mysql OPTIONS (
+    HOST 'localhost',
+    DATABASE 'auto_test_local',
+    USER 'root',
+    PASSWORD '',
+    SOCKET '$CHILD3_1_MYSOCK'
+  );
+  eval DROP SERVER s_3_2;
+  eval CREATE SERVER s_3_2 FOREIGN DATA WRAPPER mysql OPTIONS (
+    HOST 'localhost',
+    DATABASE 'auto_test_local',
+    USER 'root',
+    PASSWORD '',
+    SOCKET '$CHILD3_2_MYSOCK'
+  );
+  eval DROP SERVER s_3_3;
+  eval CREATE SERVER s_3_3 FOREIGN DATA WRAPPER mysql OPTIONS (
+    HOST 'localhost',
+    DATABASE 'auto_test_local',
+    USER 'root',
+    PASSWORD '',
+    SOCKET '$CHILD3_3_MYSOCK'
+  );
+}
diff --git a/storage/spider/mysql-test/spider/oracle2/my.cnf b/storage/spider/mysql-test/spider/oracle2/my.cnf
new file mode 100644
index 00000000..efa05c8e
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/my.cnf
@@ -0,0 +1,146 @@
+# Use default setting for mysqld processes
+!include include/default_mysqld.cnf
+
+[mysqld.1.1]
+log-bin=                  master-bin
+loose_handlersocket_port=                20000
+loose_handlersocket_port_wr=             20001
+loose_handlersocket_threads=             2
+loose_handlersocket_threads_wr=          1
+loose_handlersocket_support_merge_table= 0
+loose_handlersocket_direct_update_mode=  2
+loose_handlersocket_unlimited_boundary=  65536
+loose_handlersocket_bulk_insert=         0
+loose_handlersocket_bulk_insert_timeout= 0
+loose_handlersocket_general_log=         1
+loose_handlersocket_timeout=             30
+loose_handlersocket_close_table_interval=2
+open_files_limit=                        4096
+loose_partition=                         1
+
+[mysqld.3.1]
+loose_partition=                         1
+
+[mysqld.3.2]
+loose_partition=                         1
+
+[mysqld.3.3]
+loose_partition=                         1
+
+[mysqld.4.1]
+loose_partition=                         1
+
+
+[ENV]
+USE_GEOMETRY_TEST=        0
+USE_FULLTEXT_TEST=        0
+USE_HA_TEST=              1
+USE_GENERAL_LOG=          1
+USE_REPLICATION=          0
+MASTER_1_MYPORT=          @mysqld.1.1.port
+MASTER_1_HSRPORT=         20000
+MASTER_1_HSWPORT=         20001
+MASTER_1_MYSOCK=          @mysqld.1.1.socket
+MASTER_1_ENGINE_TYPE=     Spider
+#MASTER_1_ENGINE_TYPE=     MyISAM
+MASTER_1_ENGINE=          ENGINE=Spider
+MASTER_1_CHARSET=         DEFAULT CHARSET=utf8
+MASTER_1_ENGINE2=         ENGINE=MyISAM
+MASTER_1_CHARSET2=        DEFAULT CHARSET=utf8
+MASTER_1_CHARSET3=        DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci
+SLAVE1_1_MYPORT=          @mysqld.4.1.port
+SLAVE1_1_MYSOCK=          @mysqld.4.1.socket
+SLAVE1_1_ENGINE_TYPE=     MyISAM
+SLAVE1_1_ENGINE=          ENGINE=MyISAM
+SLAVE1_1_CHARSET=         DEFAULT CHARSET=utf8
+USE_CHILD_GROUP2=         1
+OUTPUT_CHILD_GROUP2=      0
+CHILD2_1_MYPORT=          @mysqld.1.1.port
+CHILD2_1_MYSOCK=          @mysqld.1.1.socket
+CHILD2_1_ENGINE_TYPE=     InnoDB
+CHILD2_1_ENGINE=          ENGINE=InnoDB
+CHILD2_1_CHARSET=         DEFAULT CHARSET=utf8
+CHILD2_1_CHARSET2=        DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci
+CHILD2_2_MYPORT=          @mysqld.1.1.port
+CHILD2_2_MYSOCK=          @mysqld.1.1.socket
+CHILD2_2_ENGINE_TYPE=     InnoDB
+CHILD2_2_ENGINE=          ENGINE=InnoDB
+CHILD2_2_CHARSET=         DEFAULT CHARSET=utf8
+CHILD2_3_MYPORT=          @mysqld.1.1.port
+CHILD2_3_MYSOCK=          @mysqld.1.1.socket
+CHILD2_3_ENGINE_TYPE=     InnoDB
+CHILD2_3_ENGINE=          ENGINE=InnoDB
+CHILD2_3_CHARSET=         DEFAULT CHARSET=utf8
+CHILD2_1_FT_MYPORT=       @mysqld.1.1.port
+CHILD2_1_FT_MYSOCK=       @mysqld.1.1.socket
+CHILD2_1_FT_ENGINE_TYPE=  MyISAM
+CHILD2_1_FT_ENGINE=       ENGINE=MyISAM
+CHILD2_1_FT_CHARSET=      DEFAULT CHARSET=utf8
+CHILD2_2_FT_MYPORT=       @mysqld.1.1.port
+CHILD2_2_FT_MYSOCK=       @mysqld.1.1.socket
+CHILD2_2_FT_ENGINE_TYPE=  MyISAM
+CHILD2_2_FT_ENGINE=       ENGINE=MyISAM
+CHILD2_2_FT_CHARSET=      DEFAULT CHARSET=utf8
+CHILD2_1_GM_MYPORT=       @mysqld.1.1.port
+CHILD2_1_GM_MYSOCK=       @mysqld.1.1.socket
+CHILD2_1_GM_ENGINE_TYPE=  MyISAM
+CHILD2_1_GM_ENGINE=       ENGINE=MyISAM
+CHILD2_1_GM_CHARSET=      DEFAULT CHARSET=utf8
+CHILD2_2_GM_MYPORT=       @mysqld.1.1.port
+CHILD2_2_GM_MYSOCK=       @mysqld.1.1.socket
+CHILD2_2_GM_ENGINE_TYPE=  MyISAM
+CHILD2_2_GM_ENGINE=       ENGINE=MyISAM
+CHILD2_2_GM_CHARSET=      DEFAULT CHARSET=utf8
+USE_CHILD_GROUP3=         1
+OUTPUT_CHILD_GROUP3=      0
+CHILD3_1_MYPORT=          @mysqld.3.1.port
+CHILD3_1_MYSOCK=          @mysqld.3.1.socket
+CHILD3_1_ENGINE_TYPE=     InnoDB
+CHILD3_1_ENGINE=          ENGINE=InnoDB
+CHILD3_1_CHARSET=         DEFAULT CHARSET=utf8
+CHILD3_2_MYPORT=          @mysqld.3.2.port
+CHILD3_2_MYSOCK=          @mysqld.3.2.socket
+CHILD3_2_ENGINE_TYPE=     InnoDB
+CHILD3_2_ENGINE=          ENGINE=InnoDB
+CHILD3_2_CHARSET=         DEFAULT CHARSET=utf8
+CHILD3_3_MYPORT=          @mysqld.3.3.port
+CHILD3_3_MYSOCK=          @mysqld.3.3.socket
+CHILD3_3_ENGINE_TYPE=     InnoDB
+CHILD3_3_ENGINE=          ENGINE=InnoDB
+CHILD3_3_CHARSET=         DEFAULT CHARSET=utf8
+ORACLE_HOST=              xe
+ORACLE_PORT=              1521
+ORACLE_USER=              system
+ORACLE_PASSWORD=          oracle
+ORACLE_DATABASE=          SYSTEM
+
+STR_SEMICOLON=            ;
+
+#The followings are set in include/init_xxx.inc files
+# MASTER_1_COMMENT_2_1
+# MASTER_1_COMMENT2_2_1
+# MASTER_1_COMMENT3_2_1
+# MASTER_1_COMMENT4_2_1
+# MASTER_1_COMMENT5_2_1
+# MASTER_1_COMMENT_P_2_1
+# CHILD2_1_DROP_TABLES
+# CHILD2_1_CREATE_TABLES
+# CHILD2_1_SELECT_TABLES
+# CHILD2_1_DROP_TABLES2
+# CHILD2_1_CREATE_TABLES2
+# CHILD2_1_SELECT_TABLES2
+# CHILD2_1_DROP_TABLES3
+# CHILD2_1_CREATE_TABLES3
+# CHILD2_1_SELECT_TABLES3
+# CHILD2_1_DROP_TABLES4
+# CHILD2_1_CREATE_TABLES4
+# CHILD2_1_SELECT_TABLES4
+# CHILD2_1_DROP_TABLES5
+# CHILD2_1_CREATE_TABLES5
+# CHILD2_1_SELECT_TABLES5
+# CHILD2_1_DROP_TABLES6
+# CHILD2_1_CREATE_TABLES6
+# CHILD2_1_SELECT_TABLES6
+# CHILD2_2_DROP_TABLES
+# CHILD2_2_CREATE_TABLES
+# CHILD2_2_SELECT_TABLES
diff --git a/storage/spider/mysql-test/spider/oracle2/r/basic_sql.result b/storage/spider/mysql-test/spider/oracle2/r/basic_sql.result
new file mode 100644
index 00000000..1e9fe78a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/r/basic_sql.result
@@ -0,0 +1,634 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+SELECT 1;
+1
+1
+
+create table select test
+DROP TABLE IF EXISTS tb_l;
+CREATE TABLE tb_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+INSERT INTO tb_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+SELECT a, b, c FROM tb_l
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+create table ignore select test
+DROP TABLE IF EXISTS ta_l;
+DROP TABLE IF EXISTS tb_l;
+CREATE TABLE tb_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+INSERT INTO tb_l (a, b, c) VALUES
+(1, 'f', '2008-07-01 10:21:39'),
+(2, 'g', '2000-02-01 00:00:00'),
+(3, 'j', '2007-05-04 20:03:11'),
+(4, 'i', '2003-10-30 05:01:03'),
+(5, 'h', '2001-10-31 23:59:59');
+CREATE TABLE ta_l (
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+IGNORE SELECT a, b, c FROM tb_l
+Warnings:
+Warning	1062	Duplicate entry '1' for key 'PRIMARY'
+Warning	1062	Duplicate entry '2' for key 'PRIMARY'
+Warning	1062	Duplicate entry '3' for key 'PRIMARY'
+Warning	1062	Duplicate entry '4' for key 'PRIMARY'
+Warning	1062	Duplicate entry '5' for key 'PRIMARY'
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+create table ignore select test
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+REPLACE SELECT a, b, c FROM tb_l
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+create no index table
+DROP TABLE IF EXISTS ta_l_no_idx;
+CREATE TABLE ta_l_no_idx
+MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT2_2_1
+SELECT a, b, c FROM tb_l
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l_no_idx ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select table
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select table shared mode
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a
+LOCK IN SHARE MODE;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select table for update
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a
+FOR UPDATE;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select table join
+SELECT a.a, a.b, date_format(b.c, '%Y-%m-%d %H:%i:%s') FROM ta_l a, tb_l b
+WHERE a.a = b.a ORDER BY a.a;
+a	b	date_format(b.c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select table straight_join
+SELECT STRAIGHT_JOIN a.a, a.b, date_format(b.c, '%Y-%m-%d %H:%i:%s')
+FROM ta_l a, tb_l b WHERE a.a = b.a ORDER BY a.a;
+a	b	date_format(b.c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select sql_small_result
+SELECT SQL_SMALL_RESULT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select sql_big_result
+SELECT SQL_BIG_RESULT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select sql_buffer_result
+SELECT SQL_BUFFER_RESULT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select sql_cache
+SELECT SQL_CACHE a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select sql_no_cache
+SELECT SQL_NO_CACHE a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select sql_calc_found_rows
+SELECT SQL_CALC_FOUND_ROWS a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a LIMIT 4;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+SELECT found_rows();
+found_rows()
+5
+
+select high_priority
+SELECT HIGH_PRIORITY a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select distinct
+SELECT DISTINCT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select count
+SELECT count(*) FROM ta_l ORDER BY a;
+count(*)
+5
+
+select table join not use index
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM tb_l a WHERE
+EXISTS (SELECT * FROM ta_l b WHERE b.b = a.b) ORDER BY a.a;
+a	b	date_format(a.c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select using pushdown
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l a WHERE
+a.b = 'g' ORDER BY a.a;
+a	b	date_format(a.c, '%Y-%m-%d %H:%i:%s')
+2	g	2000-02-01 00:00:00
+
+select using index and pushdown
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l a WHERE
+a.a > 0 AND a.b = 'g' ORDER BY a.a;
+a	b	date_format(a.c, '%Y-%m-%d %H:%i:%s')
+2	g	2000-02-01 00:00:00
+
+insert
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	e	2008-01-01 23:59:59
+
+insert select
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) SELECT a, b, c FROM tb_l;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+insert select a
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES ((SELECT a FROM tb_l ORDER BY a LIMIT 1),
+'e', '2008-01-01 23:59:59');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+
+insert low_priority
+TRUNCATE TABLE ta_l;
+INSERT LOW_PRIORITY INTO ta_l (a, b, c) values (2, 'e', '2008-01-01 23:59:59');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	e	2008-01-01 23:59:59
+
+insert high_priority
+TRUNCATE TABLE ta_l;
+INSERT HIGH_PRIORITY INTO ta_l (a, b, c) VALUES (2, 'e',
+'2008-01-01 23:59:59');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	e	2008-01-01 23:59:59
+
+insert ignore
+INSERT IGNORE INTO ta_l (a, b, c) VALUES (2, 'd', '2009-02-02 01:01:01');
+Warnings:
+Warning	1062	Duplicate entry '2' for key 'PRIMARY'
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	e	2008-01-01 23:59:59
+
+insert update (insert)
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59') ON DUPLICATE
+KEY UPDATE b = 'f', c = '2005-08-08 11:11:11';
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	e	2008-01-01 23:59:59
+
+insert update (update)
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59') ON DUPLICATE
+KEY UPDATE b = 'f', c = '2005-08-08 11:11:11';
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	f	2005-08-08 11:11:11
+
+replace
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59');
+REPLACE INTO ta_l (a, b, c) VALUES (2, 'f', '2008-02-02 02:02:02');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	f	2008-02-02 02:02:02
+
+replace select
+REPLACE INTO ta_l (a, b, c) SELECT a, b, c FROM tb_l;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+replace select a
+REPLACE INTO ta_l (a, b, c) VALUES ((SELECT a FROM tb_l ORDER BY a LIMIT 1),
+'e', '2008-01-01 23:59:59');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+replace low_priority
+REPLACE LOW_PRIORITY INTO ta_l (a, b, c) VALUES (3, 'g',
+'2009-03-03 03:03:03');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+2	g	2000-02-01 00:00:00
+3	g	2009-03-03 03:03:03
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+update
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59');
+UPDATE ta_l SET b = 'f', c = '2008-02-02 02:02:02' WHERE a = 2;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+2	f	2008-02-02 02:02:02
+
+update select
+UPDATE ta_l SET b = 'g', c = '2009-03-03 03:03:03' WHERE a IN (SELECT a FROM
+tb_l);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	g	2009-03-03 03:03:03
+2	g	2009-03-03 03:03:03
+
+update select a
+UPDATE ta_l SET b = 'h', c = '2010-04-04 04:04:04' WHERE a = (SELECT a FROM
+tb_l ORDER BY a LIMIT 1);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	h	2010-04-04 04:04:04
+2	g	2009-03-03 03:03:03
+
+update join
+UPDATE ta_l a, tb_l b SET a.b = b.b, a.c = b.c WHERE a.a = b.a;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+
+update join a
+UPDATE ta_l a, tb_l b SET a.b = 'g', a.c = '2009-03-03 03:03:03' WHERE
+a.a = b.a;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	g	2009-03-03 03:03:03
+2	g	2009-03-03 03:03:03
+
+update low_priority
+UPDATE LOW_PRIORITY ta_l SET b = 'f', c = '2008-02-02 02:02:02' WHERE a = 2;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	g	2009-03-03 03:03:03
+2	f	2008-02-02 02:02:02
+
+update ignore
+UPDATE IGNORE ta_l SET a = 1, b = 'g', c = '2009-03-03 03:03:03' WHERE a = 2;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	g	2009-03-03 03:03:03
+2	f	2008-02-02 02:02:02
+
+update pushdown
+update ta_l set b = 'j', c = '2009-03-03 03:03:03' where b = 'f';
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	g	2009-03-03 03:03:03
+2	j	2009-03-03 03:03:03
+
+update index pushdown
+UPDATE ta_l SET b = 'g', c = '2009-03-03 03:03:03' WHERE a > 0 AND b = 'j';
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	g	2009-03-03 03:03:03
+2	g	2009-03-03 03:03:03
+
+delete
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+DELETE FROM ta_l WHERE a = 2;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+3	e	2008-01-01 23:59:59
+4	e	2008-01-01 23:59:59
+5	e	2008-01-01 23:59:59
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete all
+DELETE FROM ta_l;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+
+delete select
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+DELETE FROM ta_l WHERE a IN (SELECT a FROM tb_l);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete select a
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+DELETE FROM ta_l WHERE a = (SELECT a FROM tb_l ORDER BY a LIMIT 1);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	e	2008-01-01 23:59:59
+3	e	2008-01-01 23:59:59
+4	e	2008-01-01 23:59:59
+5	e	2008-01-01 23:59:59
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete join
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+DELETE a FROM ta_l a, (SELECT a FROM tb_l ORDER BY a) b WHERE a.a = b.a;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete low_priority
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+DELETE LOW_PRIORITY FROM ta_l WHERE a = 2;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+3	e	2008-01-01 23:59:59
+4	e	2008-01-01 23:59:59
+5	e	2008-01-01 23:59:59
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete ignore
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+DELETE IGNORE FROM ta_l WHERE a = 2;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+3	e	2008-01-01 23:59:59
+4	e	2008-01-01 23:59:59
+5	e	2008-01-01 23:59:59
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete quick
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+DELETE QUICK FROM ta_l WHERE a = 2;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+3	e	2008-01-01 23:59:59
+4	e	2008-01-01 23:59:59
+5	e	2008-01-01 23:59:59
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete pushdown
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+DELETE FROM ta_l WHERE b = 'e';
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+10	j	2008-01-01 23:59:59
+
+delete index pushdown
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+DELETE FROM ta_l WHERE a > 0 AND b = 'e';
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+10	j	2008-01-01 23:59:59
+
+truncate
+TRUNCATE TABLE ta_l;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+
+deinit
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/oracle2/r/basic_sql_part.result b/storage/spider/mysql-test/spider/oracle2/r/basic_sql_part.result
new file mode 100644
index 00000000..9e1201c1
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/r/basic_sql_part.result
@@ -0,0 +1,121 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+SELECT 1;
+1
+1
+DROP TABLE IF EXISTS tb_l;
+CREATE TABLE tb_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+INSERT INTO tb_l (a, b, c) VALUES
+(1, 'f', '2008-07-01 10:21:39'),
+(2, 'g', '2000-02-01 00:00:00'),
+(3, 'j', '2007-05-04 20:03:11'),
+(4, 'i', '2003-10-30 05:01:03'),
+(5, 'h', '2001-10-31 23:59:59');
+
+create table with partition and select test
+CREATE TABLE ta_l2 (
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_COMMENT_P_2_1
+SELECT a, b, c FROM tb_l
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select partition using pushdown
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 a WHERE
+a.b = 'g' ORDER BY a.a;
+a	b	date_format(a.c, '%Y-%m-%d %H:%i:%s')
+2	g	2000-02-01 00:00:00
+
+select partition using index pushdown
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 a WHERE
+a.a > 0 AND a.b = 'g' ORDER BY a.a;
+a	b	date_format(a.c, '%Y-%m-%d %H:%i:%s')
+2	g	2000-02-01 00:00:00
+
+update partition pushdown
+UPDATE ta_l2 SET b = 'e', c = '2009-03-03 03:03:03' WHERE b = 'j';
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	e	2009-03-03 03:03:03
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+update partition index pushdown
+UPDATE ta_l2 SET b = 'j', c = '2009-03-03 03:03:03' WHERE a > 0 AND b = 'e';
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2009-03-03 03:03:03
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+delete partition pushdown
+TRUNCATE TABLE ta_l2;
+INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+DELETE FROM ta_l2 WHERE b = 'g';
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+delete partition index pushdown
+TRUNCATE TABLE ta_l2;
+INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+DELETE FROM ta_l2 WHERE a > 0 AND b = 'g';
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+deinit
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/oracle2/r/direct_aggregate.result b/storage/spider/mysql-test/spider/oracle2/r/direct_aggregate.result
new file mode 100644
index 00000000..fe5752cf
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/r/direct_aggregate.result
@@ -0,0 +1,91 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+SELECT 1;
+1
+1
+
+create table select test
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO ta_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+direct_aggregating test
+SHOW GLOBAL STATUS LIKE 'Spider_direct_aggregate%';
+Variable_name	Value
+Spider_direct_aggregate	0
+SELECT COUNT(*) FROM ta_l;
+COUNT(*)
+5
+SHOW GLOBAL STATUS LIKE 'Spider_direct_aggregate%';
+Variable_name	Value
+Spider_direct_aggregate	1
+SELECT MAX(a) FROM ta_l;
+MAX(a)
+5
+SHOW GLOBAL STATUS LIKE 'Spider_direct_aggregate%';
+Variable_name	Value
+Spider_direct_aggregate	1
+SELECT MIN(a) FROM ta_l;
+MIN(a)
+1
+SHOW GLOBAL STATUS LIKE 'Spider_direct_aggregate%';
+Variable_name	Value
+Spider_direct_aggregate	1
+SELECT MAX(a) FROM ta_l WHERE a < 5;
+MAX(a)
+4
+SHOW GLOBAL STATUS LIKE 'Spider_direct_aggregate%';
+Variable_name	Value
+Spider_direct_aggregate	1
+SELECT MIN(a) FROM ta_l WHERE a > 1;
+MIN(a)
+2
+SHOW GLOBAL STATUS LIKE 'Spider_direct_aggregate%';
+Variable_name	Value
+Spider_direct_aggregate	1
+
+deinit
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/oracle2/r/direct_aggregate_part.result b/storage/spider/mysql-test/spider/oracle2/r/direct_aggregate_part.result
new file mode 100644
index 00000000..9bde4a17
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/r/direct_aggregate_part.result
@@ -0,0 +1,82 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+SELECT 1;
+1
+1
+
+with partition test
+CREATE TABLE ta_l2 (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1
+SHOW GLOBAL STATUS LIKE 'Spider_direct_aggregate%';
+Variable_name	Value
+Spider_direct_aggregate	0
+SELECT COUNT(*) FROM ta_l2;
+COUNT(*)
+5
+SHOW GLOBAL STATUS LIKE 'Spider_direct_aggregate%';
+Variable_name	Value
+Spider_direct_aggregate	2
+SELECT MAX(a) FROM ta_l2;
+MAX(a)
+5
+SHOW GLOBAL STATUS LIKE 'Spider_direct_aggregate%';
+Variable_name	Value
+Spider_direct_aggregate	2
+SELECT MIN(a) FROM ta_l2;
+MIN(a)
+1
+SHOW GLOBAL STATUS LIKE 'Spider_direct_aggregate%';
+Variable_name	Value
+Spider_direct_aggregate	2
+SELECT MAX(a) FROM ta_l2 WHERE a < 5;
+MAX(a)
+4
+SHOW GLOBAL STATUS LIKE 'Spider_direct_aggregate%';
+Variable_name	Value
+Spider_direct_aggregate	2
+SELECT MIN(a) FROM ta_l2 WHERE a > 1;
+MIN(a)
+2
+SHOW GLOBAL STATUS LIKE 'Spider_direct_aggregate%';
+Variable_name	Value
+Spider_direct_aggregate	2
+
+deinit
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/oracle2/r/direct_update.result b/storage/spider/mysql-test/spider/oracle2/r/direct_update.result
new file mode 100644
index 00000000..3dc39d5f
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/r/direct_update.result
@@ -0,0 +1,138 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+SELECT 1;
+1
+1
+
+create table select test
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO ta_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+direct_updating test
+SHOW GLOBAL STATUS LIKE 'Spider_direct_update%';
+Variable_name	Value
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+update all rows with function
+UPDATE ta_l SET c = ADDDATE(c, 1);
+SHOW GLOBAL STATUS LIKE 'Spider_direct_update%';
+Variable_name	Value
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	e	2007-06-05 20:03:11
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+update by primary key
+UPDATE ta_l SET b = 'x' WHERE a = 3;
+SHOW GLOBAL STATUS LIKE 'Spider_direct_update%';
+Variable_name	Value
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	x	2007-06-05 20:03:11
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+update by a column without index
+UPDATE ta_l SET c = '2011-10-17' WHERE b = 'x';
+SHOW GLOBAL STATUS LIKE 'Spider_direct_update%';
+Variable_name	Value
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	x	2011-10-17 00:00:00
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+update by primary key with order and limit
+UPDATE ta_l SET c = ADDDATE(c, 1) WHERE a < 4 ORDER BY b DESC LIMIT 1;
+SHOW GLOBAL STATUS LIKE 'Spider_direct_update%';
+Variable_name	Value
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	x	2011-10-18 00:00:00
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+delete by primary key with order and limit
+DELETE FROM ta_l WHERE a < 4 ORDER BY c LIMIT 1;
+SHOW GLOBAL STATUS LIKE 'Spider_direct_delete%';
+Variable_name	Value
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+3	x	2011-10-18 00:00:00
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+delete by a column without index
+DELETE FROM ta_l WHERE b = 'c';
+SHOW GLOBAL STATUS LIKE 'Spider_direct_delete%';
+Variable_name	Value
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+3	x	2011-10-18 00:00:00
+4	d	2003-12-01 05:01:03
+delete by primary key
+DELETE FROM ta_l WHERE a = 3;
+SHOW GLOBAL STATUS LIKE 'Spider_direct_delete%';
+Variable_name	Value
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+4	d	2003-12-01 05:01:03
+
+deinit
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/oracle2/r/direct_update_part.result b/storage/spider/mysql-test/spider/oracle2/r/direct_update_part.result
new file mode 100644
index 00000000..8a22c40a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/r/direct_update_part.result
@@ -0,0 +1,129 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+SELECT 1;
+1
+1
+
+with partition test
+CREATE TABLE ta_l2 (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1
+SHOW GLOBAL STATUS LIKE 'Spider_direct_update%';
+Variable_name	Value
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+update all rows with function
+UPDATE ta_l2 SET c = ADDDATE(c, 1);
+SHOW GLOBAL STATUS LIKE 'Spider_direct_update%';
+Variable_name	Value
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	e	2007-06-05 20:03:11
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+update by primary key
+UPDATE ta_l2 SET b = 'x' WHERE a = 3;
+SHOW GLOBAL STATUS LIKE 'Spider_direct_update%';
+Variable_name	Value
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	x	2007-06-05 20:03:11
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+update by a column without index
+UPDATE ta_l2 SET c = '2011-10-17' WHERE b = 'x';
+SHOW GLOBAL STATUS LIKE 'Spider_direct_update%';
+Variable_name	Value
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	x	2011-10-17 00:00:00
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+update by primary key with order and limit
+UPDATE ta_l2 SET c = ADDDATE(c, 1) WHERE a < 4 ORDER BY b DESC LIMIT 1;
+SHOW GLOBAL STATUS LIKE 'Spider_direct_update%';
+Variable_name	Value
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	x	2011-10-18 00:00:00
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+delete by primary key with order and limit
+DELETE FROM ta_l2 WHERE a < 4 ORDER BY c LIMIT 1;
+SHOW GLOBAL STATUS LIKE 'Spider_direct_delete%';
+Variable_name	Value
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+3	x	2011-10-18 00:00:00
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+delete by a column without index
+DELETE FROM ta_l2 WHERE b = 'c';
+SHOW GLOBAL STATUS LIKE 'Spider_direct_delete%';
+Variable_name	Value
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+3	x	2011-10-18 00:00:00
+4	d	2003-12-01 05:01:03
+delete by primary key
+DELETE FROM ta_l2 WHERE a = 3;
+SHOW GLOBAL STATUS LIKE 'Spider_direct_delete%';
+Variable_name	Value
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+4	d	2003-12-01 05:01:03
+
+deinit
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/oracle2/r/function.result b/storage/spider/mysql-test/spider/oracle2/r/function.result
new file mode 100644
index 00000000..764c7745
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/r/function.result
@@ -0,0 +1,149 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+SELECT 1;
+1
+1
+
+in()
+CREATE TABLE t1 (
+a VARCHAR(255),
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET3 MASTER_1_COMMENT_TEXT_PK1_1
+insert into t1 values ('1');
+insert into t1 select a + 1 from t1;
+insert into t1 select a + 2 from t1;
+insert into t1 select a + 4 from t1;
+insert into t1 select a + 8 from t1;
+insert into t1 select a + 16 from t1;
+insert into t1 select a + 32 from t1;
+insert into t1 select a + 64 from t1;
+insert into t1 select a + 128 from t1;
+insert into t1 select a + 256 from t1;
+insert into t1 select a + 512 from t1;
+flush tables;
+select a from t1 where a in ('15', '120');
+a
+120
+15
+
+date_sub()
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO ta_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 YEAR);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-08-01 10:21:39
+2	b	1999-01-01 00:00:00
+3	e	2006-06-04 20:03:11
+4	d	2002-11-30 05:01:03
+5	c	2000-12-31 23:59:59
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 QUARTER);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-11-01 10:21:39
+2	b	1999-04-01 00:00:00
+3	e	2006-09-04 20:03:11
+4	d	2003-02-28 05:01:03
+5	c	2001-03-31 23:59:59
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 MONTH);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-10-01 10:21:39
+2	b	1999-03-01 00:00:00
+3	e	2006-08-04 20:03:11
+4	d	2003-01-28 05:01:03
+5	c	2001-02-28 23:59:59
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 WEEK);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-10-08 10:21:39
+2	b	1999-03-08 00:00:00
+3	e	2006-08-11 20:03:11
+4	d	2003-02-04 05:01:03
+5	c	2001-03-07 23:59:59
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 DAY);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-10-07 10:21:39
+2	b	1999-03-07 00:00:00
+3	e	2006-08-10 20:03:11
+4	d	2003-02-03 05:01:03
+5	c	2001-03-06 23:59:59
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 HOUR);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-10-07 11:21:39
+2	b	1999-03-07 01:00:00
+3	e	2006-08-10 21:03:11
+4	d	2003-02-03 06:01:03
+5	c	2001-03-07 00:59:59
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 MINUTE);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-10-07 11:20:39
+2	b	1999-03-07 00:59:00
+3	e	2006-08-10 21:02:11
+4	d	2003-02-03 06:00:03
+5	c	2001-03-07 00:58:59
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 SECOND);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-10-07 11:20:40
+2	b	1999-03-07 00:59:01
+3	e	2006-08-10 21:02:12
+4	d	2003-02-03 06:00:04
+5	c	2001-03-07 00:59:00
+
+deinit
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/oracle2/r/ha.result b/storage/spider/mysql-test/spider/oracle2/r/ha.result
new file mode 100644
index 00000000..8ca64dec
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/r/ha.result
@@ -0,0 +1,240 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+DROP DATABASE IF EXISTS auto_test_remote3;
+CREATE DATABASE auto_test_remote3;
+USE auto_test_remote3;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+test select 1
+SELECT 1;
+1
+1
+
+create table test
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_2_1
+INSERT INTO ta_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+select test
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+fail-over test
+SHOW GLOBAL STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	0
+Spider_mon_table_cache_version_req	1
+INSERT INTO ta_l (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+ERROR HY000: Table 'SYSTEM.ta_r3' get a problem
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l	0	1
+auto_test_local	ta_l	1	3
+SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+db_name	table_name	link_id
+auto_test_local	ta_l	1
+SHOW GLOBAL STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	1
+Spider_mon_table_cache_version_req	1
+INSERT INTO ta_l (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+6	e	2011-05-05 20:04:05
+
+recovery test
+ALTER TABLE ta_l
+CONNECTION='host "xe", user "system",
+  password "oracle", msi "2", mkd "2",
+  database "SYSTEM", lst "0 2"';
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l	0	1
+auto_test_local	ta_l	1	2
+SELECT spider_copy_tables('ta_l', '0', '1');
+spider_copy_tables('ta_l', '0', '1')
+1
+ALTER TABLE ta_l
+CONNECTION='host "xe", user "system",
+  password "oracle", msi "2", mkd "2",
+  database "SYSTEM", lst "0 1"';
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l	0	1
+auto_test_local	ta_l	1	1
+INSERT INTO ta_l (a, b, c) VALUES
+(8, 'g', '2011-05-05 21:33:30');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+6	e	2011-05-05 20:04:05
+8	g	2011-05-05 21:33:30
+DROP TABLE ta_l;
+SELECT spider_flush_table_mon_cache();
+spider_flush_table_mon_cache()
+1
+
+active standby test
+create table test
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_AS_2_1
+INSERT INTO ta_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+select test
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+fail-over test
+SHOW GLOBAL STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	1
+Spider_mon_table_cache_version_req	2
+INSERT INTO ta_l (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+ERROR HY000: Table 'SYSTEM.ta_r' get a problem
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l	0	3
+auto_test_local	ta_l	1	1
+SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+db_name	table_name	link_id
+auto_test_local	ta_l	1
+auto_test_local	ta_l	0
+SHOW GLOBAL STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	2
+Spider_mon_table_cache_version_req	2
+INSERT INTO ta_l (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+6	e	2011-05-05 20:04:05
+
+recovery test
+ALTER TABLE ta_l
+CONNECTION='host "xe", user "system",
+  password "oracle", msi "2", mkd "2", alc "1",
+  database "SYSTEM", lst "1 0"';
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l	0	1
+auto_test_local	ta_l	1	1
+INSERT INTO ta_l (a, b, c) VALUES
+(8, 'g', '2011-05-05 21:33:30');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+8	g	2011-05-05 21:33:30
+DROP TABLE ta_l;
+SELECT spider_flush_table_mon_cache();
+spider_flush_table_mon_cache()
+1
+
+deinit
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+DROP DATABASE IF EXISTS auto_test_remote3;
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_local;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/oracle2/r/ha_part.result b/storage/spider/mysql-test/spider/oracle2/r/ha_part.result
new file mode 100644
index 00000000..e11b6f69
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/r/ha_part.result
@@ -0,0 +1,262 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+DROP DATABASE IF EXISTS auto_test_remote3;
+CREATE DATABASE auto_test_remote3;
+USE auto_test_remote3;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+test select 1
+SELECT 1;
+1
+1
+
+create table with partition test
+DROP TABLE IF EXISTS ta_l2;
+CREATE TABLE ta_l2 (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_P_2_1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+select test
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+fail-over test
+SHOW GLOBAL STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	0
+Spider_mon_table_cache_version_req	1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+ERROR HY000: Table 'SYSTEM.ta_r4' get a problem
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l2#P#pt1	0	1
+auto_test_local	ta_l2#P#pt1	1	1
+auto_test_local	ta_l2#P#pt2	0	1
+auto_test_local	ta_l2#P#pt2	1	3
+SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+db_name	table_name	link_id
+auto_test_local	ta_l2#P#pt2	1
+SHOW GLOBAL STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	1
+Spider_mon_table_cache_version_req	1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+6	e	2011-05-05 20:04:05
+
+recovery test
+ALTER TABLE ta_l2
+PARTITION BY KEY(a) (
+PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 2"'
+  );
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l2#P#pt1	0	1
+auto_test_local	ta_l2#P#pt1	1	1
+auto_test_local	ta_l2#P#pt2	0	1
+auto_test_local	ta_l2#P#pt2	1	2
+SELECT spider_copy_tables('ta_l2#P#pt2', '0', '1');
+spider_copy_tables('ta_l2#P#pt2', '0', '1')
+1
+ALTER TABLE ta_l2
+PARTITION BY KEY(a) (
+PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 1"'
+  );
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l2#P#pt1	0	1
+auto_test_local	ta_l2#P#pt1	1	1
+auto_test_local	ta_l2#P#pt2	0	1
+auto_test_local	ta_l2#P#pt2	1	1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(8, 'g', '2011-05-05 21:33:30'),
+(9, 'h', '2011-05-05 22:32:10');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+6	e	2011-05-05 20:04:05
+8	g	2011-05-05 21:33:30
+9	h	2011-05-05 22:32:10
+DROP TABLE ta_l2;
+
+create table with partition test
+DROP TABLE IF EXISTS ta_l2;
+CREATE TABLE ta_l2 (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_AS_P_2_1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+select test
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+fail-over test
+SHOW GLOBAL STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	1
+Spider_mon_table_cache_version_req	1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+ERROR HY000: Table 'SYSTEM.ta_r2' get a problem
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l2#P#pt1	0	1
+auto_test_local	ta_l2#P#pt1	1	1
+auto_test_local	ta_l2#P#pt2	0	3
+auto_test_local	ta_l2#P#pt2	1	1
+SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+db_name	table_name	link_id
+auto_test_local	ta_l2#P#pt2	1
+auto_test_local	ta_l2#P#pt2	0
+SHOW GLOBAL STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	1
+Spider_mon_table_cache_version_req	1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+3	e	2007-06-04 20:03:11
+5	c	2001-12-31 23:59:59
+6	e	2011-05-05 20:04:05
+
+recovery test
+ALTER TABLE ta_l2
+PARTITION BY KEY(a) (
+PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "1 0"'
+  );
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l2#P#pt1	0	1
+auto_test_local	ta_l2#P#pt1	1	1
+auto_test_local	ta_l2#P#pt2	0	1
+auto_test_local	ta_l2#P#pt2	1	1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(8, 'g', '2011-05-05 21:33:30'),
+(9, 'h', '2011-05-05 22:32:10');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+3	e	2007-06-04 20:03:11
+5	c	2001-12-31 23:59:59
+8	g	2011-05-05 21:33:30
+9	h	2011-05-05 22:32:10
+DROP TABLE ta_l2;
+
+deinit
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+DROP DATABASE IF EXISTS auto_test_remote3;
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_local;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/oracle2/r/spider3_fixes.result b/storage/spider/mysql-test/spider/oracle2/r/spider3_fixes.result
new file mode 100644
index 00000000..dd6c8715
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/r/spider3_fixes.result
@@ -0,0 +1,210 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for slave1_1
+
+drop and create databases
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+SELECT 1;
+1
+1
+
+3.1
+auto_increment
+DROP TABLE IF EXISTS t1, t2;
+CREATE TABLE t1 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_1
+CREATE TABLE t2 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_1
+MASTER_1_AUTO_INCREMENT_INCREMENT2
+MASTER_1_AUTO_INCREMENT_OFFSET2
+spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_1"\'; exception when others then null; end;', '', 'srv "s_2_1"')
+1
+spider_direct_sql('CREATE SEQUENCE "seq_t1_1" START WITH 2 INCREMENT BY 4', '', 'srv "s_2_1"')
+1
+spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_2"\'; exception when others then null; end;', '', 'srv "s_2_2"')
+1
+spider_direct_sql('CREATE SEQUENCE "seq_t1_2" START WITH 3 INCREMENT BY 4', '', 'srv "s_2_2"')
+1
+spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_1"\'; exception when others then null; end;', '', 'srv "s_2_1"')
+1
+spider_direct_sql('CREATE SEQUENCE "seq_t1_1" START WITH 2 INCREMENT BY 4', '', 'srv "s_2_1"')
+1
+spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_2"\'; exception when others then null; end;', '', 'srv "s_2_2"')
+1
+spider_direct_sql('CREATE SEQUENCE "seq_t1_2" START WITH 3 INCREMENT BY 4', '', 'srv "s_2_2"')
+1
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+2
+SELECT MAX(id) FROM t1;
+MAX(id)
+2
+INSERT INTO t2 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+6
+SELECT MAX(id) FROM t2;
+MAX(id)
+6
+MASTER_1_AUTO_INCREMENT_OFFSET3
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+10
+SELECT MAX(id) FROM t1;
+MAX(id)
+10
+MASTER_1_AUTO_INCREMENT_OFFSET4
+INSERT INTO t2 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+14
+SELECT MAX(id) FROM t2;
+MAX(id)
+14
+MASTER_1_AUTO_INCREMENT_OFFSET3
+INSERT INTO t1 () VALUES (),(),(),();
+Warnings:
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+18
+SELECT id FROM t1 ORDER BY id;
+id
+2
+6
+10
+14
+18
+22
+26
+30
+MASTER_1_AUTO_INCREMENT_OFFSET4
+INSERT INTO t2 () VALUES (),(),(),();
+Warnings:
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+34
+SELECT id FROM t2 ORDER BY id;
+id
+2
+6
+10
+14
+18
+22
+26
+30
+34
+38
+42
+46
+TRUNCATE TABLE t1;
+TRUNCATE TABLE t2;
+INSERT INTO t1 () VALUES (),(),(),();
+Warnings:
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+50
+SELECT id FROM t1 ORDER BY id;
+id
+50
+54
+58
+62
+INSERT INTO t2 () VALUES (),(),(),();
+Warnings:
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+66
+SELECT id FROM t2 ORDER BY id;
+id
+50
+54
+58
+62
+66
+70
+74
+78
+SET INSERT_ID=5000;
+MASTER_1_AUTO_INCREMENT_OFFSET3
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+82
+SELECT MAX(id) FROM t1;
+MAX(id)
+82
+MASTER_1_AUTO_INCREMENT_OFFSET4
+INSERT INTO t2 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+86
+SELECT MAX(id) FROM t2;
+MAX(id)
+86
+INSERT INTO t1 (id) VALUES (10000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+90
+SELECT MAX(id) FROM t1;
+MAX(id)
+90
+INSERT INTO t2 (id) VALUES (1000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+94
+SELECT MAX(id) FROM t2;
+MAX(id)
+94
+
+deinit
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for slave1_1
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/oracle2/r/spider3_fixes_part.result b/storage/spider/mysql-test/spider/oracle2/r/spider3_fixes_part.result
new file mode 100644
index 00000000..38875214
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/r/spider3_fixes_part.result
@@ -0,0 +1,208 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for slave1_1
+
+drop and create databases
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+SELECT 1;
+1
+1
+auto_increment with partition
+DROP TABLE IF EXISTS t1, t2;
+CREATE TABLE t1 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_P_1
+CREATE TABLE t2 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_P_1
+MASTER_1_AUTO_INCREMENT_INCREMENT2
+MASTER_1_AUTO_INCREMENT_OFFSET2
+spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_1"\'; exception when others then null; end;', '', 'srv "s_2_1"')
+1
+spider_direct_sql('CREATE SEQUENCE "seq_t1_1" START WITH 2 INCREMENT BY 4', '', 'srv "s_2_1"')
+1
+spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_2"\'; exception when others then null; end;', '', 'srv "s_2_2"')
+1
+spider_direct_sql('CREATE SEQUENCE "seq_t1_2" START WITH 3 INCREMENT BY 4', '', 'srv "s_2_2"')
+1
+spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_1"\'; exception when others then null; end;', '', 'srv "s_2_1"')
+1
+spider_direct_sql('CREATE SEQUENCE "seq_t1_1" START WITH 2 INCREMENT BY 4', '', 'srv "s_2_1"')
+1
+spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_2"\'; exception when others then null; end;', '', 'srv "s_2_2"')
+1
+spider_direct_sql('CREATE SEQUENCE "seq_t1_2" START WITH 3 INCREMENT BY 4', '', 'srv "s_2_2"')
+1
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+3
+SELECT MAX(id) FROM t1;
+MAX(id)
+3
+INSERT INTO t2 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+7
+SELECT MAX(id) FROM t2;
+MAX(id)
+7
+MASTER_1_AUTO_INCREMENT_OFFSET3
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+2
+SELECT MAX(id) FROM t1;
+MAX(id)
+7
+MASTER_1_AUTO_INCREMENT_OFFSET4
+INSERT INTO t2 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+6
+SELECT MAX(id) FROM t2;
+MAX(id)
+7
+MASTER_1_AUTO_INCREMENT_OFFSET3
+INSERT INTO t1 () VALUES (),(),(),();
+Warnings:
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+10
+SELECT id FROM t1 ORDER BY id;
+id
+2
+3
+6
+7
+10
+11
+14
+15
+MASTER_1_AUTO_INCREMENT_OFFSET4
+INSERT INTO t2 () VALUES (),(),(),();
+Warnings:
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+18
+SELECT id FROM t2 ORDER BY id;
+id
+2
+3
+6
+7
+10
+11
+14
+15
+18
+19
+22
+23
+TRUNCATE TABLE t1;
+TRUNCATE TABLE t2;
+INSERT INTO t1 () VALUES (),(),(),();
+Warnings:
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+26
+SELECT id FROM t1 ORDER BY id;
+id
+26
+27
+30
+31
+INSERT INTO t2 () VALUES (),(),(),();
+Warnings:
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+34
+SELECT id FROM t2 ORDER BY id;
+id
+26
+27
+30
+31
+34
+35
+38
+39
+SET INSERT_ID=5000;
+MASTER_1_AUTO_INCREMENT_OFFSET3
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+42
+SELECT MAX(id) FROM t1;
+MAX(id)
+42
+MASTER_1_AUTO_INCREMENT_OFFSET4
+INSERT INTO t2 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+43
+SELECT MAX(id) FROM t2;
+MAX(id)
+43
+INSERT INTO t1 (id) VALUES (10000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+46
+SELECT MAX(id) FROM t1;
+MAX(id)
+46
+INSERT INTO t2 (id) VALUES (1000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+50
+SELECT MAX(id) FROM t2;
+MAX(id)
+50
+
+deinit
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for slave1_1
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/oracle2/r/spider_fixes.result b/storage/spider/mysql-test/spider/oracle2/r/spider_fixes.result
new file mode 100644
index 00000000..5a41603c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/r/spider_fixes.result
@@ -0,0 +1,556 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for slave1_1
+
+drop and create databases
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+SELECT 1;
+1
+1
+
+create table and insert
+DROP TABLE IF EXISTS tb_l;
+CREATE TABLE tb_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+INSERT INTO tb_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+
+2.13
+select table with "order by desc" and "<"
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+WHERE a < 5 ORDER BY a DESC LIMIT 3;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+4	d	2003-11-30 05:01:03
+3	e	2007-06-04 20:03:11
+2	b	2000-01-01 00:00:00
+
+select table with "order by desc" and "<="
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+WHERE a <= 5 ORDER BY a DESC LIMIT 3;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+5	c	2001-12-31 23:59:59
+4	d	2003-11-30 05:01:03
+3	e	2007-06-04 20:03:11
+
+2.14
+update table with range scan and split_read
+UPDATE ta_l SET c = '2000-02-02 00:00:00' WHERE a > 1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-02-02 00:00:00
+3	e	2000-02-02 00:00:00
+4	d	2000-02-02 00:00:00
+5	c	2000-02-02 00:00:00
+
+2.15
+select table with range scan
+TRUNCATE TABLE ta_l;
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+a int(11) NOT NULL DEFAULT '0',
+b char(1) DEFAULT NULL,
+c datetime DEFAULT NULL,
+PRIMARY KEY (a, b, c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT5_2_1
+INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b >= 'b'
+AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b > 'b'
+AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a >= 4 AND b = 'd'
+AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a > 4 AND b = 'c'
+AND c = '2001-12-31 23:59:59';
+a	b	c
+5	c	2001-12-31 23:59:59
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b <= 'd'
+AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b < 'e'
+AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a <= 4 AND b = 'b'
+AND c = '2000-01-01 00:00:00';
+a	b	c
+2	b	2000-01-01 00:00:00
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a < 4 AND b = 'b'
+AND c = '2000-01-01 00:00:00';
+a	b	c
+2	b	2000-01-01 00:00:00
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b >= 'b'
+AND b <= 'd' AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b > 'b'
+AND b < 'e' AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a <= 4 AND a >= 1
+AND b >= 'b' AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a < 4 AND a > 1
+AND b >= 'b' AND c = '2000-01-01 00:00:00';
+a	b	c
+2	b	2000-01-01 00:00:00
+
+2.16
+auto_increment insert with trigger
+CREATE TABLE ta_l_auto_inc (
+a INT AUTO_INCREMENT,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10',
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT3_2_1
+CREATE TABLE tc_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+CREATE TRIGGER ins_ta_l_auto_inc AFTER INSERT ON ta_l_auto_inc FOR EACH ROW BEGIN INSERT INTO tc_l (a, b, c) VALUES (NEW.a, NEW.b, NEW.c); END;;
+INSERT INTO ta_l_auto_inc (a, b, c) VALUES
+(NULL, 's', '2008-12-31 20:59:59');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM tc_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	s	2008-12-31 20:59:59
+
+2.17
+engine-condition-pushdown with "or" and joining
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l WHERE a = 1 OR a IN (SELECT a FROM tb_l);
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+2.23
+index merge
+CREATE TABLE ta_l_int (
+a INT AUTO_INCREMENT,
+b INT DEFAULT 10,
+c INT DEFAULT 11,
+PRIMARY KEY(a),
+KEY idx1(b),
+KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1
+INSERT INTO ta_l_int (a, b, c) VALUES (1, 2, 3);
+INSERT INTO ta_l_int (a, b, c) SELECT a + 1, b + 1, c + 1 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 2, b + 2, c + 2 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 4, b + 4, c + 4 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 8, b + 8, c + 8 FROM ta_l_int;
+SELECT a, b, c FROM ta_l_int force index(primary, idx1, idx2)
+WHERE a = 5 OR b = 5 OR c = 5 ORDER BY a;
+a	b	c
+3	4	5
+4	5	6
+5	6	7
+
+2.24
+index scan update without PK
+DROP TABLE IF EXISTS ta_l_int;
+CREATE TABLE ta_l_int (
+a INT NOT NULL,
+b INT DEFAULT 10,
+c INT DEFAULT 11,
+KEY idx1(b),
+KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1
+SELECT a, b, c FROM ta_l_int ORDER BY a;
+a	b	c
+1	2	3
+2	3	4
+3	4	5
+4	5	6
+5	6	7
+6	7	8
+7	8	9
+8	9	10
+9	10	11
+10	11	12
+11	12	13
+12	13	14
+13	14	15
+14	15	16
+15	16	17
+16	17	18
+INSERT INTO ta_l_int (a, b, c) VALUES (0, 2, 3);
+INSERT INTO ta_l_int (a, b, c) VALUES (18, 2, 3);
+UPDATE ta_l_int SET c = 4 WHERE b = 2;
+SELECT a, b, c FROM ta_l_int ORDER BY a;
+a	b	c
+0	2	4
+1	2	4
+2	3	4
+3	4	5
+4	5	6
+5	6	7
+6	7	8
+7	8	9
+8	9	10
+9	10	11
+10	11	12
+11	12	13
+12	13	14
+13	14	15
+14	15	16
+15	16	17
+16	17	18
+18	2	4
+
+2.25
+direct order limit
+SHOW GLOBAL STATUS LIKE 'Spider_direct_order_limit%';
+Variable_name	Value
+Spider_direct_order_limit	0
+SELECT a, b, c FROM ta_l_int ORDER BY a LIMIT 3;
+a	b	c
+1	2	4
+2	3	4
+3	4	5
+SHOW GLOBAL STATUS LIKE 'Spider_direct_order_limit%';
+Variable_name	Value
+Spider_direct_order_limit	0
+
+2.26
+lock tables
+DROP TABLE IF EXISTS t1;
+DROP TABLE IF EXISTS t2;
+CREATE TABLE t1 (
+id int(11) NOT NULL,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_LOCK1
+CREATE TABLE t2 (
+id int(11) NOT NULL,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_LOCK2
+LOCK TABLES t1 READ, t2 READ;
+UNLOCK TABLES;
+
+auto_increment
+DROP TABLE IF EXISTS t1;
+CREATE TABLE t1 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_1
+MASTER_1_AUTO_INCREMENT_INCREMENT2
+MASTER_1_AUTO_INCREMENT_OFFSET2
+spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_1"\'; exception when others then null; end;', '', 'srv "s_2_1"')
+1
+spider_direct_sql('CREATE SEQUENCE "seq_t1_1" START WITH 2 INCREMENT BY 4', '', 'srv "s_2_1"')
+1
+spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_2"\'; exception when others then null; end;', '', 'srv "s_2_2"')
+1
+spider_direct_sql('CREATE SEQUENCE "seq_t1_2" START WITH 3 INCREMENT BY 4', '', 'srv "s_2_2"')
+1
+spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_1"\'; exception when others then null; end;', '', 'srv "s_2_1"')
+1
+spider_direct_sql('CREATE SEQUENCE "seq_t1_1" START WITH 2 INCREMENT BY 4', '', 'srv "s_2_1"')
+1
+spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_2"\'; exception when others then null; end;', '', 'srv "s_2_2"')
+1
+spider_direct_sql('CREATE SEQUENCE "seq_t1_2" START WITH 3 INCREMENT BY 4', '', 'srv "s_2_2"')
+1
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+2
+SELECT MAX(id) FROM t1;
+MAX(id)
+2
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+6
+SELECT MAX(id) FROM t1;
+MAX(id)
+6
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+10
+SELECT MAX(id) FROM t1;
+MAX(id)
+10
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+14
+SELECT MAX(id) FROM t1;
+MAX(id)
+14
+INSERT INTO t1 () VALUES (),(),(),();
+Warnings:
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+18
+SELECT id FROM t1 ORDER BY id;
+id
+2
+6
+10
+14
+18
+22
+26
+30
+SET INSERT_ID=5000;
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+34
+SELECT MAX(id) FROM t1;
+MAX(id)
+34
+INSERT INTO t1 (id) VALUES (10000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+38
+SELECT MAX(id) FROM t1;
+MAX(id)
+38
+INSERT INTO t1 (id) VALUES (1000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+42
+SELECT MAX(id) FROM t1;
+MAX(id)
+42
+
+read only
+DROP TABLE IF EXISTS t1;
+CREATE TABLE t1 (
+id int(11) NOT NULL,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_READONLY1_1
+SELECT id FROM t1 ORDER BY id;
+id
+2
+6
+10
+14
+18
+22
+26
+30
+34
+38
+42
+INSERT INTO t1 (id) VALUES (1);
+ERROR HY000: Table 'auto_test_local.t1' is read only
+UPDATE t1 SET id = 4 WHERE id = 2;
+ERROR HY000: Table 'auto_test_local.t1' is read only
+DELETE FROM t1 WHERE id = 2;
+ERROR HY000: Table 'auto_test_local.t1' is read only
+DELETE FROM t1;
+ERROR HY000: Table 'auto_test_local.t1' is read only
+TRUNCATE t1;
+ERROR HY000: Table 'auto_test_local.t1' is read only
+
+2.27
+error mode
+DROP TABLE IF EXISTS t1;
+CREATE TABLE t1 (
+id int(11) NOT NULL,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_ERROR_MODE1_1
+SELECT id FROM t1 ORDER BY id;
+id
+Warnings:
+Error	12712	Error from Oracle -1 942 ORA-00942: ???????????????
+
+Error	12712	Oracle error
+Error	12712	Error from Oracle -1 942 ORA-00942: ???????????????
+
+Error	12712	Oracle error
+INSERT INTO t1 (id) VALUES (1);
+Warnings:
+Error	12712	Error from Oracle -1 942 ORA-00942: ???????????????
+
+Error	12712	Oracle error
+DELETE FROM t1;
+Warnings:
+Error	12712	Error from Oracle -1 942 ORA-00942: ???????????????
+
+Error	12712	Oracle error
+TRUNCATE t1;
+Warnings:
+Error	12712	Error from Oracle -1 942 ORA-00942: ???????????????
+
+Error	12712	Oracle error
+
+3.0
+is null
+DROP TABLE IF EXISTS t1;
+CREATE TABLE t1 (
+a VARCHAR(255),
+b VARCHAR(255),
+c VARCHAR(255),
+KEY idx1(a,b),
+KEY idx2(b),
+PRIMARY KEY(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_TEXT_KEY1_1
+insert into t1 values (null, null, '2048');
+insert into t1 values ('1', '1', '1');
+insert into t1 select a + 1,   b + 1,   c + 1   from t1;
+insert into t1 select a + 2,   b + 2,   c + 2   from t1;
+insert into t1 select a + 4,   b + 4,   c + 4   from t1;
+insert into t1 select a + 8,   b + 8,   c + 8   from t1;
+insert into t1 select a + 16,  b + 16,  c + 16  from t1;
+insert into t1 select a + 32,  b + 32,  c + 32  from t1;
+insert into t1 select a + 64,  b + 64,  c + 64  from t1;
+insert into t1 select a + 128, b + 128, c + 128 from t1;
+insert into t1 select a + 256, b + 256, c + 256 from t1;
+insert into t1 select a + 512, b + 512, c + 512 from t1;
+flush tables;
+select a from t1 where a is null order by a limit 30;
+a
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+select b from t1 where b is null order by b limit 30;
+b
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+
+direct_order_limit
+TRUNCATE TABLE t1;
+insert into t1 values ('1', '1', '1');
+insert into t1 select a + 1,   b + 1,   c + 1   from t1;
+insert into t1 select a + 2,   b + 2,   c + 2   from t1;
+insert into t1 select a + 4,   b + 4,   c + 4   from t1;
+insert into t1 select a + 8,   b + 8,   c + 8   from t1;
+insert into t1 select a + 16,  b + 16,  c + 16  from t1;
+insert into t1 select a,       b + 32,  c + 32  from t1;
+insert into t1 select a,       b + 64,  c + 64  from t1;
+insert into t1 select a,       b + 128, c + 128 from t1;
+flush tables;
+select a, b, c from t1 where a = '10' and b <> '100' order by c desc limit 5;
+a	b	c
+10	74	74
+10	42	42
+10	234	234
+10	202	202
+10	170	170
+select a, c from t1 where a = '10' order by b desc limit 5;
+a	c
+10	74
+10	42
+10	234
+10	202
+10	170
+
+deinit
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for slave1_1
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/oracle2/r/spider_fixes_part.result b/storage/spider/mysql-test/spider/oracle2/r/spider_fixes_part.result
new file mode 100644
index 00000000..20a5ca18
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/r/spider_fixes_part.result
@@ -0,0 +1,203 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for slave1_1
+
+drop and create databases
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+SELECT 1;
+1
+1
+DROP TABLE IF EXISTS tb_l;
+CREATE TABLE tb_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+INSERT INTO tb_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+2.17
+partition with sort
+CREATE TABLE ta_l2 (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1
+INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 WHERE a > 1
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+2.23
+partition update with moving partition
+DROP TABLE IF EXISTS ta_l2;
+CREATE TABLE ta_l2 (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1
+INSERT INTO ta_l2 (a, b, c) VALUES (3, 'B', '2010-09-26 00:00:00');
+UPDATE ta_l2 SET a = 4 WHERE a = 3;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+4	B	2010-09-26 00:00:00
+index merge with partition
+DROP TABLE IF EXISTS ta_l_int;
+CREATE TABLE ta_l_int (
+a INT AUTO_INCREMENT,
+b INT DEFAULT 10,
+c INT DEFAULT 11,
+PRIMARY KEY(a),
+KEY idx1(b),
+KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT3_P_2_1
+INSERT INTO ta_l_int (a, b, c) VALUES (1, 2, 3);
+INSERT INTO ta_l_int (a, b, c) SELECT a + 1, b + 1, c + 1 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 2, b + 2, c + 2 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 4, b + 4, c + 4 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 8, b + 8, c + 8 FROM ta_l_int;
+SELECT a, b, c FROM ta_l_int force index(primary, idx1, idx2)
+WHERE a = 5 OR b = 5 OR c = 5 ORDER BY a;
+a	b	c
+3	4	5
+4	5	6
+5	6	7
+
+2.26
+auto_increment with partition
+DROP TABLE IF EXISTS t1;
+CREATE TABLE t1 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_P_1
+MASTER_1_AUTO_INCREMENT_INCREMENT2
+MASTER_1_AUTO_INCREMENT_OFFSET2
+spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_1"\'; exception when others then null; end;', '', 'srv "s_2_1"')
+1
+spider_direct_sql('CREATE SEQUENCE "seq_t1_1" START WITH 2 INCREMENT BY 4', '', 'srv "s_2_1"')
+1
+spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_2"\'; exception when others then null; end;', '', 'srv "s_2_2"')
+1
+spider_direct_sql('CREATE SEQUENCE "seq_t1_2" START WITH 3 INCREMENT BY 4', '', 'srv "s_2_2"')
+1
+spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_1"\'; exception when others then null; end;', '', 'srv "s_2_1"')
+1
+spider_direct_sql('CREATE SEQUENCE "seq_t1_1" START WITH 2 INCREMENT BY 4', '', 'srv "s_2_1"')
+1
+spider_direct_sql('begin execute immediate \'DROP SEQUENCE "seq_t1_2"\'; exception when others then null; end;', '', 'srv "s_2_2"')
+1
+spider_direct_sql('CREATE SEQUENCE "seq_t1_2" START WITH 3 INCREMENT BY 4', '', 'srv "s_2_2"')
+1
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+3
+SELECT MAX(id) FROM t1;
+MAX(id)
+3
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+2
+SELECT MAX(id) FROM t1;
+MAX(id)
+3
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+7
+SELECT MAX(id) FROM t1;
+MAX(id)
+7
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+6
+SELECT MAX(id) FROM t1;
+MAX(id)
+7
+INSERT INTO t1 () VALUES (),(),(),();
+Warnings:
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+Note	12520	Binlog's auto-inc value is probably different from linked table's auto-inc value
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+10
+SELECT id FROM t1 ORDER BY id;
+id
+2
+3
+6
+7
+10
+11
+14
+15
+SET INSERT_ID=5000;
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+18
+SELECT MAX(id) FROM t1;
+MAX(id)
+18
+INSERT INTO t1 (id) VALUES (10000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+22
+SELECT MAX(id) FROM t1;
+MAX(id)
+22
+INSERT INTO t1 (id) VALUES (1000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+26
+SELECT MAX(id) FROM t1;
+MAX(id)
+26
+
+deinit
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for slave1_1
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/oracle2/r/vp_fixes.result b/storage/spider/mysql-test/spider/oracle2/r/vp_fixes.result
new file mode 100644
index 00000000..15dd29aa
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/r/vp_fixes.result
@@ -0,0 +1,80 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+SELECT 1;
+1
+1
+
+create table and insert
+DROP TABLE IF EXISTS tb_l;
+CREATE TABLE tb_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+INSERT INTO tb_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+
+0.9
+create different primary key table
+CREATE TABLE ta_l_int (
+a INT DEFAULT 10,
+b INT AUTO_INCREMENT,
+c INT DEFAULT 11,
+PRIMARY KEY(b)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1
+INSERT INTO ta_l_int (a, b, c) VALUES (2, NULL, 3);
+create un-correspond primary key table
+DROP TABLE IF EXISTS ta_l_int;
+CREATE TABLE ta_l_int (
+a INT DEFAULT 10,
+b INT DEFAULT 12,
+c INT DEFAULT 11,
+PRIMARY KEY(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1
+INSERT INTO ta_l_int (a, b, c) VALUES (2, NULL, 3);
+
+deinit
+DROP DATABASE IF EXISTS auto_test_local;
+DROP DATABASE IF EXISTS auto_test_remote;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/oracle2/t/basic_sql.test b/storage/spider/mysql-test/spider/oracle2/t/basic_sql.test
new file mode 100644
index 00000000..5bb04004
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/basic_sql.test
@@ -0,0 +1,2699 @@
+# This test tests by executing basic SQL
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tb_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+eval CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+--enable_query_log
+INSERT INTO tb_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+SELECT a, b, c FROM tb_l;
+if ($MASTER_1_MERGE)
+{
+  --error ER_WRONG_OBJECT
+  eval CREATE TABLE ta_l (
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1
+  SELECT a, b, c FROM tb_l;
+  eval CREATE TABLE ta_l (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+  INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+}
+if (!$MASTER_1_MERGE)
+{
+  eval CREATE TABLE ta_l (
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1
+  SELECT a, b, c FROM tb_l;
+}
+--enable_query_log
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo create table ignore select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+DROP TABLE IF EXISTS tb_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+eval CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+--enable_query_log
+INSERT INTO tb_l (a, b, c) VALUES
+  (1, 'f', '2008-07-01 10:21:39'),
+  (2, 'g', '2000-02-01 00:00:00'),
+  (3, 'j', '2007-05-04 20:03:11'),
+  (4, 'i', '2003-10-30 05:01:03'),
+  (5, 'h', '2001-10-31 23:59:59');
+--disable_query_log
+echo CREATE TABLE ta_l (
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+IGNORE SELECT a, b, c FROM tb_l;
+if ($MASTER_1_MERGE)
+{
+  --error ER_WRONG_OBJECT
+  eval CREATE TABLE ta_l (
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1
+  IGNORE SELECT a, b, c FROM tb_l;
+  eval CREATE TABLE ta_l (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+  INSERT IGNORE INTO ta_l SELECT a, b, c FROM tb_l;
+}
+if (!$MASTER_1_MERGE)
+{
+  eval CREATE TABLE ta_l (
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1
+  IGNORE SELECT a, b, c FROM tb_l;
+}
+--enable_query_log
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo create table ignore select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+REPLACE SELECT a, b, c FROM tb_l;
+if ($MASTER_1_MERGE)
+{
+  --error ER_WRONG_OBJECT
+  eval CREATE TABLE ta_l (
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1
+  REPLACE SELECT a, b, c FROM tb_l;
+  eval CREATE TABLE ta_l (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+  REPLACE INTO ta_l SELECT a, b, c FROM tb_l;
+}
+if (!$MASTER_1_MERGE)
+{
+  eval CREATE TABLE ta_l (
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1
+  REPLACE SELECT a, b, c FROM tb_l;
+}
+--enable_query_log
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%replace %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo create no index table
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES3;
+    echo CHILD2_1_CREATE_TABLES3;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES3;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES3;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l_no_idx;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l_no_idx
+MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT2_2_1
+SELECT a, b, c FROM tb_l;
+if ($MASTER_1_NEEDPK)
+{
+  --error ER_REQUIRES_PRIMARY_KEY
+  eval CREATE TABLE ta_l_no_idx
+  $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT2_2_1
+  SELECT a, b, c FROM tb_l;
+  eval CREATE TABLE ta_l_no_idx (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT2_2_1;
+  INSERT INTO ta_l_no_idx SELECT a, b, c FROM tb_l;
+}
+if (!$MASTER_1_NEEDPK)
+{
+  if ($MASTER_1_MERGE)
+  {
+    --error ER_WRONG_OBJECT
+    eval CREATE TABLE ta_l_no_idx
+    $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT2_2_1
+    SELECT a, b, c FROM tb_l;
+    eval CREATE TABLE ta_l_no_idx (
+      a INT,
+      b CHAR(1),
+      c DATETIME
+    ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT2_2_1;
+    INSERT INTO ta_l_no_idx SELECT a, b, c FROM tb_l;
+  }
+  if (!$MASTER_1_MERGE)
+  {
+    eval CREATE TABLE ta_l_no_idx
+    $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT2_2_1
+    SELECT a, b, c FROM tb_l;
+  }
+}
+--enable_query_log
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES3;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l_no_idx ORDER BY a;
+
+--echo
+--echo select table
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select table shared mode
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a
+LOCK IN SHARE MODE;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select table for update
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a
+FOR UPDATE;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select table join
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a.a, a.b, date_format(b.c, '%Y-%m-%d %H:%i:%s') FROM ta_l a, tb_l b
+WHERE a.a = b.a ORDER BY a.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select table straight_join
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT STRAIGHT_JOIN a.a, a.b, date_format(b.c, '%Y-%m-%d %H:%i:%s')
+FROM ta_l a, tb_l b WHERE a.a = b.a ORDER BY a.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select sql_small_result
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT SQL_SMALL_RESULT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select sql_big_result
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT SQL_BIG_RESULT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select sql_buffer_result
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT SQL_BUFFER_RESULT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select sql_cache
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT SQL_CACHE a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select sql_no_cache
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT SQL_NO_CACHE a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select sql_calc_found_rows
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT SQL_CALC_FOUND_ROWS a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a LIMIT 4;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT found_rows();
+
+--echo
+--echo select high_priority
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT HIGH_PRIORITY a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select distinct
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT DISTINCT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select count
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT count(*) FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select table join not use index
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM tb_l a WHERE
+EXISTS (SELECT * FROM ta_l b WHERE b.b = a.b) ORDER BY a.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select using pushdown
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l a WHERE
+a.b = 'g' ORDER BY a.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select using index and pushdown
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l a WHERE
+a.a > 0 AND a.b = 'g' ORDER BY a.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo insert
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert select
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT INTO ta_l (a, b, c) SELECT a, b, c FROM tb_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert select a
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT INTO ta_l (a, b, c) VALUES ((SELECT a FROM tb_l ORDER BY a LIMIT 1),
+'e', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert low_priority
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT LOW_PRIORITY INTO ta_l (a, b, c) values (2, 'e', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert high_priority
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT HIGH_PRIORITY INTO ta_l (a, b, c) VALUES (2, 'e',
+'2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert ignore
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT IGNORE INTO ta_l (a, b, c) VALUES (2, 'd', '2009-02-02 01:01:01');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert update (insert)
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59') ON DUPLICATE
+KEY UPDATE b = 'f', c = '2005-08-08 11:11:11';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%update %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert update (update)
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59') ON DUPLICATE
+KEY UPDATE b = 'f', c = '2005-08-08 11:11:11';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%update %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo replace
+--connection master_1
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+REPLACE INTO ta_l (a, b, c) VALUES (2, 'f', '2008-02-02 02:02:02');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'replace %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo replace select
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+REPLACE INTO ta_l (a, b, c) SELECT a, b, c FROM tb_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'replace %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo replace select a
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+REPLACE INTO ta_l (a, b, c) VALUES ((SELECT a FROM tb_l ORDER BY a LIMIT 1),
+'e', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'replace %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo replace low_priority
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+REPLACE LOW_PRIORITY INTO ta_l (a, b, c) VALUES (3, 'g',
+'2009-03-03 03:03:03');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'replace %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l SET b = 'f', c = '2008-02-02 02:02:02' WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update select
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l SET b = 'g', c = '2009-03-03 03:03:03' WHERE a IN (SELECT a FROM
+tb_l);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update select a
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l SET b = 'h', c = '2010-04-04 04:04:04' WHERE a = (SELECT a FROM
+tb_l ORDER BY a LIMIT 1);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update join
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l a, tb_l b SET a.b = b.b, a.c = b.c WHERE a.a = b.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update join a
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l a, tb_l b SET a.b = 'g', a.c = '2009-03-03 03:03:03' WHERE
+a.a = b.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update low_priority
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE LOW_PRIORITY ta_l SET b = 'f', c = '2008-02-02 02:02:02' WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update ignore
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE IGNORE ta_l SET a = 1, b = 'g', c = '2009-03-03 03:03:03' WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update pushdown
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+update ta_l set b = 'j', c = '2009-03-03 03:03:03' where b = 'f';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update index pushdown
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l SET b = 'g', c = '2009-03-03 03:03:03' WHERE a > 0 AND b = 'j';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE FROM ta_l WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete all
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE FROM ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete select
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE FROM ta_l WHERE a IN (SELECT a FROM tb_l);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete select a
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE FROM ta_l WHERE a = (SELECT a FROM tb_l ORDER BY a LIMIT 1);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete join
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE a FROM ta_l a, (SELECT a FROM tb_l ORDER BY a) b WHERE a.a = b.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete low_priority
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE LOW_PRIORITY FROM ta_l WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete ignore
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE IGNORE FROM ta_l WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete quick
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE QUICK FROM ta_l WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete pushdown
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE FROM ta_l WHERE b = 'e';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete index pushdown
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE FROM ta_l WHERE a > 0 AND b = 'e';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo truncate
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'truncate %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/oracle2/t/basic_sql_part.test b/storage/spider/mysql-test/spider/oracle2/t/basic_sql_part.test
new file mode 100644
index 00000000..e1638642
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/basic_sql_part.test
@@ -0,0 +1,571 @@
+# This test tests by executing basic SQL
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+if (!$HAVE_PARTITION)
+{
+  --disable_query_log
+  --disable_result_log
+  --source test_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tb_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+eval CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+--enable_query_log
+INSERT INTO tb_l (a, b, c) VALUES
+  (1, 'f', '2008-07-01 10:21:39'),
+  (2, 'g', '2000-02-01 00:00:00'),
+  (3, 'j', '2007-05-04 20:03:11'),
+  (4, 'i', '2003-10-30 05:01:03'),
+  (5, 'h', '2001-10-31 23:59:59');
+
+--echo
+--echo create table with partition and select test
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_COMMENT_P_2_1
+  SELECT a, b, c FROM tb_l;
+  if ($MASTER_1_MERGE)
+  {
+    --error ER_WRONG_OBJECT
+    eval CREATE TABLE ta_l2 (
+      PRIMARY KEY(a)
+    ) $MASTER_1_ENGINE $MASTER_1_COMMENT_P_2_1
+    SELECT a, b, c FROM tb_l;
+    eval CREATE TABLE ta_l2 (
+      a INT,
+      b CHAR(1),
+      c DATETIME,
+      PRIMARY KEY(a)
+    ) $MASTER_1_ENGINE $MASTER_1_COMMENT_P_2_1;
+    INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+  }
+  if (!$MASTER_1_MERGE)
+  {
+    eval CREATE TABLE ta_l2 (
+      PRIMARY KEY(a)
+    ) $MASTER_1_ENGINE $MASTER_1_COMMENT_P_2_1
+    SELECT a, b, c FROM tb_l;
+  }
+  --enable_query_log
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+}
+
+--echo
+--echo select partition using pushdown
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 a WHERE
+  a.b = 'g' ORDER BY a.a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo
+--echo select partition using index pushdown
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 a WHERE
+  a.a > 0 AND a.b = 'g' ORDER BY a.a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo
+--echo update partition pushdown
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  UPDATE ta_l2 SET b = 'e', c = '2009-03-03 03:03:03' WHERE b = 'j';
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+}
+
+--echo
+--echo update partition index pushdown
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  UPDATE ta_l2 SET b = 'j', c = '2009-03-03 03:03:03' WHERE a > 0 AND b = 'e';
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+}
+
+--echo
+--echo delete partition pushdown
+if ($HAVE_PARTITION)
+{
+  TRUNCATE TABLE ta_l2;
+  INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  DELETE FROM ta_l2 WHERE b = 'g';
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+}
+
+--echo
+--echo delete partition index pushdown
+if ($HAVE_PARTITION)
+{
+  TRUNCATE TABLE ta_l2;
+  INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  DELETE FROM ta_l2 WHERE a > 0 AND b = 'g';
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/oracle2/t/connect_child2_1.inc b/storage/spider/mysql-test/spider/oracle2/t/connect_child2_1.inc
new file mode 100644
index 00000000..cd9b0c9c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/connect_child2_1.inc
@@ -0,0 +1 @@
+--connect (child2_1, localhost, root, , , $CHILD2_1_MYPORT, $CHILD2_1_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/oracle2/t/connect_child2_2.inc b/storage/spider/mysql-test/spider/oracle2/t/connect_child2_2.inc
new file mode 100644
index 00000000..e145f66b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/connect_child2_2.inc
@@ -0,0 +1 @@
+--connect (child2_2, localhost, root, , , $CHILD2_2_MYPORT, $CHILD2_2_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/oracle2/t/connect_child2_3.inc b/storage/spider/mysql-test/spider/oracle2/t/connect_child2_3.inc
new file mode 100644
index 00000000..d356348d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/connect_child2_3.inc
@@ -0,0 +1 @@
+--connect (child2_3, localhost, root, , , $CHILD2_3_MYPORT, $CHILD2_3_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/oracle2/t/connect_child3_1.inc b/storage/spider/mysql-test/spider/oracle2/t/connect_child3_1.inc
new file mode 100644
index 00000000..03e5c188
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/connect_child3_1.inc
@@ -0,0 +1 @@
+--connect (child3_1, localhost, root, , , $CHILD3_1_MYPORT, $CHILD3_1_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/oracle2/t/connect_child3_2.inc b/storage/spider/mysql-test/spider/oracle2/t/connect_child3_2.inc
new file mode 100644
index 00000000..d62a7ada
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/connect_child3_2.inc
@@ -0,0 +1 @@
+--connect (child3_2, localhost, root, , , $CHILD3_2_MYPORT, $CHILD3_2_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/oracle2/t/connect_child3_3.inc b/storage/spider/mysql-test/spider/oracle2/t/connect_child3_3.inc
new file mode 100644
index 00000000..fb49f5bf
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/connect_child3_3.inc
@@ -0,0 +1 @@
+--connect (child3_3, localhost, root, , , $CHILD3_3_MYPORT, $CHILD3_3_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/oracle2/t/connect_master_1.inc b/storage/spider/mysql-test/spider/oracle2/t/connect_master_1.inc
new file mode 100644
index 00000000..0c129ce5
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/connect_master_1.inc
@@ -0,0 +1 @@
+--connect (master_1, localhost, root, , , $MASTER_1_MYPORT, $MASTER_1_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/oracle2/t/connect_slave1_1.inc b/storage/spider/mysql-test/spider/oracle2/t/connect_slave1_1.inc
new file mode 100644
index 00000000..45a82274
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/connect_slave1_1.inc
@@ -0,0 +1 @@
+--connect (slave1_1, localhost, root, , , $SLAVE1_1_MYPORT, $SLAVE1_1_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/oracle2/t/direct_aggregate.test b/storage/spider/mysql-test/spider/oracle2/t/direct_aggregate.test
new file mode 100644
index 00000000..d65f4c5a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/direct_aggregate.test
@@ -0,0 +1,179 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO ta_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+
+--echo
+--echo direct_aggregating test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+SELECT COUNT(*) FROM ta_l;
+eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+SELECT MAX(a) FROM ta_l;
+eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+SELECT MIN(a) FROM ta_l;
+eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+SELECT MAX(a) FROM ta_l WHERE a < 5;
+eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+SELECT MIN(a) FROM ta_l WHERE a > 1;
+eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%handler %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/oracle2/t/direct_aggregate_part.test b/storage/spider/mysql-test/spider/oracle2/t/direct_aggregate_part.test
new file mode 100644
index 00000000..aebf210c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/direct_aggregate_part.test
@@ -0,0 +1,192 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+if (!$HAVE_PARTITION)
+{
+  --disable_query_log
+  --disable_result_log
+  --source test_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo with partition test
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1;
+  eval CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_COMMENT2_P_2_1;
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (1, 'a', '2008-08-01 10:21:39'),
+    (2, 'b', '2000-01-01 00:00:00'),
+    (3, 'e', '2007-06-04 20:03:11'),
+    (4, 'd', '2003-11-30 05:01:03'),
+    (5, 'c', '2001-12-31 23:59:59');
+  --enable_query_log
+  eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+  SELECT COUNT(*) FROM ta_l2;
+  eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+  SELECT MAX(a) FROM ta_l2;
+  eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+  SELECT MIN(a) FROM ta_l2;
+  eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+  SELECT MAX(a) FROM ta_l2 WHERE a < 5;
+  eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+  SELECT MIN(a) FROM ta_l2 WHERE a > 1;
+  eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%handler %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%handler %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/oracle2/t/direct_update.test b/storage/spider/mysql-test/spider/oracle2/t/direct_update.test
new file mode 100644
index 00000000..e0901062
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/direct_update.test
@@ -0,0 +1,198 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO ta_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+
+--echo
+--echo direct_updating test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo update all rows with function
+UPDATE ta_l SET c = ADDDATE(c, 1);
+eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo update by primary key
+UPDATE ta_l SET b = 'x' WHERE a = 3;
+eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo update by a column without index
+UPDATE ta_l SET c = '2011-10-17' WHERE b = 'x';
+eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo update by primary key with order and limit
+UPDATE ta_l SET c = ADDDATE(c, 1) WHERE a < 4 ORDER BY b DESC LIMIT 1;
+eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo delete by primary key with order and limit
+DELETE FROM ta_l WHERE a < 4 ORDER BY c LIMIT 1;
+eval $MASTER_1_CHECK_DIRECT_DELETE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo delete by a column without index
+DELETE FROM ta_l WHERE b = 'c';
+eval $MASTER_1_CHECK_DIRECT_DELETE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo delete by primary key
+DELETE FROM ta_l WHERE a = 3;
+eval $MASTER_1_CHECK_DIRECT_DELETE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%handler %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/oracle2/t/direct_update_part.test b/storage/spider/mysql-test/spider/oracle2/t/direct_update_part.test
new file mode 100644
index 00000000..95e2e2ab
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/direct_update_part.test
@@ -0,0 +1,211 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+if (!$HAVE_PARTITION)
+{
+  --disable_query_log
+  --disable_result_log
+  --source test_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo with partition test
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1;
+  eval CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_COMMENT2_P_2_1;
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (1, 'a', '2008-08-01 10:21:39'),
+    (2, 'b', '2000-01-01 00:00:00'),
+    (3, 'e', '2007-06-04 20:03:11'),
+    (4, 'd', '2003-11-30 05:01:03'),
+    (5, 'c', '2001-12-31 23:59:59');
+  --enable_query_log
+  eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo update all rows with function
+  UPDATE ta_l2 SET c = ADDDATE(c, 1);
+  eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo update by primary key
+  UPDATE ta_l2 SET b = 'x' WHERE a = 3;
+  eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo update by a column without index
+  UPDATE ta_l2 SET c = '2011-10-17' WHERE b = 'x';
+  eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo update by primary key with order and limit
+  UPDATE ta_l2 SET c = ADDDATE(c, 1) WHERE a < 4 ORDER BY b DESC LIMIT 1;
+  eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo delete by primary key with order and limit
+  DELETE FROM ta_l2 WHERE a < 4 ORDER BY c LIMIT 1;
+  eval $MASTER_1_CHECK_DIRECT_DELETE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo delete by a column without index
+  DELETE FROM ta_l2 WHERE b = 'c';
+  eval $MASTER_1_CHECK_DIRECT_DELETE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo delete by primary key
+  DELETE FROM ta_l2 WHERE a = 3;
+  eval $MASTER_1_CHECK_DIRECT_DELETE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%handler %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%handler %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/oracle2/t/function.test b/storage/spider/mysql-test/spider/oracle2/t/function.test
new file mode 100644
index 00000000..ec2eeab9
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/function.test
@@ -0,0 +1,253 @@
+# This test tests for using functions
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo in()
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_result_log
+  }
+  --disable_query_log
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    echo CHILD2_1_DROP_TEXT_PK_TABLES1;
+    echo CHILD2_1_CREATE_TEXT_PK_TABLES1;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TEXT_PK_TABLES1;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TEXT_PK_TABLES1;
+  --enable_query_log
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_query_log
+echo CREATE TABLE t1 (
+  a VARCHAR(255),
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET3 MASTER_1_COMMENT_TEXT_PK1_1;
+eval CREATE TABLE t1 (
+  a VARCHAR(255),
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET3 $MASTER_1_COMMENT_TEXT_PK1_1;
+--enable_query_log
+insert into t1 values ('1');
+insert into t1 select a + 1 from t1;
+insert into t1 select a + 2 from t1;
+insert into t1 select a + 4 from t1;
+insert into t1 select a + 8 from t1;
+insert into t1 select a + 16 from t1;
+insert into t1 select a + 32 from t1;
+insert into t1 select a + 64 from t1;
+insert into t1 select a + 128 from t1;
+insert into t1 select a + 256 from t1;
+insert into t1 select a + 512 from t1;
+flush tables;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+select a from t1 where a in ('15', '120');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TEXT_PK_TABLES1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo date_sub()
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO ta_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 YEAR);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 QUARTER);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 MONTH);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 WEEK);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 DAY);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 HOUR);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 MINUTE);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 SECOND);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/oracle2/t/ha.test b/storage/spider/mysql-test/spider/oracle2/t/ha.test
new file mode 100644
index 00000000..c12930e4
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/ha.test
@@ -0,0 +1,878 @@
+# This test tests for ha features
+if ($USE_HA_TEST)
+{
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--source ha_test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+  --connection child2_3
+  DROP DATABASE IF EXISTS auto_test_remote3;
+  CREATE DATABASE auto_test_remote3;
+  USE auto_test_remote3;
+}
+if ($USE_CHILD_GROUP3)
+{
+  --connection child3_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+  --connection child3_2
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+  --connection child3_3
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  --connection child2_3
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  SELECT 1;
+  --connection child3_2
+  SELECT 1;
+  --connection child3_3
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_2_DROP_TABLES;
+    echo CHILD2_2_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_2_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_2_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  --disable_warnings
+  eval $CHILD3_1_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  eval $CHILD3_1_CREATE_TABLES_HA_2_1;
+  --connection child3_2
+  --disable_warnings
+  eval $CHILD3_2_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  eval $CHILD3_2_CREATE_TABLES_HA_2_1;
+  --connection child3_3
+  --disable_warnings
+  eval $CHILD3_3_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  eval $CHILD3_3_CREATE_TABLES_HA_2_1;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_HA_2_1;
+--enable_query_log
+INSERT INTO ta_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+
+--echo
+--echo select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo fail-over test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_2_HA_DROP_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_2_HA_DROP_TABLES;
+  --enable_warnings
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_CHECK_HA_STATUS;
+--error 12511
+INSERT INTO ta_l (a, b, c) VALUES
+  (6, 'e', '2011-05-05 20:04:05');
+eval $MASTER_1_CHECK_LINK_STATUS;
+eval $MASTER_1_CHECK_LINK_FAILED_LOG;
+eval $MASTER_1_CHECK_HA_STATUS;
+INSERT INTO ta_l (a, b, c) VALUES
+  (6, 'e', '2011-05-05 20:04:05');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  eval $CHILD3_1_CHECK_LINK_STATUS;
+  eval $CHILD3_1_CHECK_LINK_FAILED_LOG;
+  --connection child3_2
+  eval $CHILD3_2_CHECK_LINK_STATUS;
+  eval $CHILD3_2_CHECK_LINK_FAILED_LOG;
+  --connection child3_3
+  eval $CHILD3_3_CHECK_LINK_STATUS;
+  eval $CHILD3_3_CHECK_LINK_FAILED_LOG;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo recovery test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_2_HA_CREATE_TABLES;
+  }
+  eval $CHILD2_2_HA_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  eval $CHILD3_1_SET_RECOVERY_STATUS_2_1;
+  eval $CHILD3_1_CHECK_LINK_STATUS;
+  --connection child3_2
+  eval $CHILD3_2_SET_RECOVERY_STATUS_2_1;
+  eval $CHILD3_2_CHECK_LINK_STATUS;
+  --connection child3_3
+  eval $CHILD3_3_SET_RECOVERY_STATUS_2_1;
+  eval $CHILD3_3_CHECK_LINK_STATUS;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_SET_RECOVERY_STATUS_2_1;
+eval $MASTER_1_CHECK_LINK_STATUS;
+eval $MASTER_1_COPY_TABLES_2_1;
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  eval $CHILD3_1_SET_OK_STATUS_2_1;
+  eval $CHILD3_1_CHECK_LINK_STATUS;
+  --connection child3_2
+  eval $CHILD3_2_SET_OK_STATUS_2_1;
+  eval $CHILD3_2_CHECK_LINK_STATUS;
+  --connection child3_3
+  eval $CHILD3_3_SET_OK_STATUS_2_1;
+  eval $CHILD3_3_CHECK_LINK_STATUS;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_SET_OK_STATUS_2_1;
+eval $MASTER_1_CHECK_LINK_STATUS;
+INSERT INTO ta_l (a, b, c) VALUES
+  (8, 'g', '2011-05-05 21:33:30');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+DROP TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  --disable_warnings
+  eval $CHILD3_1_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  --connection child3_2
+  --disable_warnings
+  eval $CHILD3_2_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  --connection child3_3
+  --disable_warnings
+  eval $CHILD3_3_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+eval $MASTER_1_CHANGE_HA_MON;
+
+--echo
+--echo active standby test
+--echo create table test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_2_DROP_TABLES;
+    echo CHILD2_2_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_2_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_2_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  --disable_warnings
+  eval $CHILD3_1_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  eval $CHILD3_1_CREATE_TABLES_HA_AS_2_1;
+  --connection child3_2
+  --disable_warnings
+  eval $CHILD3_2_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  eval $CHILD3_2_CREATE_TABLES_HA_AS_2_1;
+  --connection child3_3
+  --disable_warnings
+  eval $CHILD3_3_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  eval $CHILD3_3_CREATE_TABLES_HA_AS_2_1;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_AS_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_HA_AS_2_1;
+--enable_query_log
+INSERT INTO ta_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+
+--echo
+--echo select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo fail-over test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_HA_AS_DROP_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_HA_AS_DROP_TABLES;
+  --enable_warnings
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_CHECK_HA_STATUS;
+--error 12511
+INSERT INTO ta_l (a, b, c) VALUES
+  (6, 'e', '2011-05-05 20:04:05');
+eval $MASTER_1_CHECK_LINK_STATUS;
+eval $MASTER_1_CHECK_LINK_FAILED_LOG;
+eval $MASTER_1_CHECK_HA_STATUS;
+INSERT INTO ta_l (a, b, c) VALUES
+  (6, 'e', '2011-05-05 20:04:05');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  eval $CHILD3_1_CHECK_LINK_STATUS;
+  eval $CHILD3_1_CHECK_LINK_FAILED_LOG;
+  --connection child3_2
+  eval $CHILD3_2_CHECK_LINK_STATUS;
+  eval $CHILD3_2_CHECK_LINK_FAILED_LOG;
+  --connection child3_3
+  eval $CHILD3_3_CHECK_LINK_STATUS;
+  eval $CHILD3_3_CHECK_LINK_FAILED_LOG;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo recovery test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_HA_AS_CREATE_TABLES;
+  }
+  eval $CHILD2_1_HA_AS_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  eval $CHILD3_1_SET_OK_STATUS_AS_2_1;
+  eval $CHILD3_1_CHECK_LINK_STATUS;
+  --connection child3_2
+  eval $CHILD3_2_SET_OK_STATUS_AS_2_1;
+  eval $CHILD3_2_CHECK_LINK_STATUS;
+  --connection child3_3
+  eval $CHILD3_3_SET_OK_STATUS_AS_2_1;
+  eval $CHILD3_3_CHECK_LINK_STATUS;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_SET_OK_STATUS_AS_2_1;
+eval $MASTER_1_CHECK_LINK_STATUS;
+INSERT INTO ta_l (a, b, c) VALUES
+  (8, 'g', '2011-05-05 21:33:30');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+DROP TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  --disable_warnings
+  eval $CHILD3_1_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  --connection child3_2
+  --disable_warnings
+  eval $CHILD3_2_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  --connection child3_3
+  --disable_warnings
+  eval $CHILD3_3_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+eval $MASTER_1_CHANGE_HA_MON;
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  --connection child2_3
+  DROP DATABASE IF EXISTS auto_test_remote3;
+}
+if ($USE_CHILD_GROUP3)
+{
+  --connection child3_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  --connection child3_2
+  DROP DATABASE IF EXISTS auto_test_local;
+  --connection child3_3
+  DROP DATABASE IF EXISTS auto_test_local;
+}
+--disable_query_log
+--disable_result_log
+--source ha_test_deinit.inc
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+}
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/oracle2/t/ha_part.test b/storage/spider/mysql-test/spider/oracle2/t/ha_part.test
new file mode 100644
index 00000000..72ddcfd1
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/ha_part.test
@@ -0,0 +1,1017 @@
+# This test tests for ha features
+if ($USE_HA_TEST)
+{
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--source ha_test_init.inc
+--enable_result_log
+--enable_query_log
+if (!$HAVE_PARTITION)
+{
+  --disable_query_log
+  --disable_result_log
+  --source ha_test_deinit.inc
+  --source test_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+  --connection child2_3
+  DROP DATABASE IF EXISTS auto_test_remote3;
+  CREATE DATABASE auto_test_remote3;
+  USE auto_test_remote3;
+}
+if ($USE_CHILD_GROUP3)
+{
+  --connection child3_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+  --connection child3_2
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+  --connection child3_3
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  --connection child2_3
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  SELECT 1;
+  --connection child3_2
+  SELECT 1;
+  --connection child3_3
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+if ($HAVE_PARTITION)
+{
+  --echo
+  --echo create table with partition test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES;
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES;
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES;
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_3_DROP_TABLES;
+      echo CHILD2_3_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_3_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_3_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    --disable_warnings
+    eval $CHILD3_1_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    eval $CHILD3_1_CREATE_TABLES_HA_P_2_1;
+    --connection child3_2
+    --disable_warnings
+    eval $CHILD3_2_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    eval $CHILD3_2_CREATE_TABLES_HA_P_2_1;
+    --connection child3_3
+    --disable_warnings
+    eval $CHILD3_3_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    eval $CHILD3_3_CREATE_TABLES_HA_P_2_1;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_warnings
+  DROP TABLE IF EXISTS ta_l2;
+  --enable_warnings
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_P_2_1;
+  eval CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_HA_P_2_1;
+  --enable_query_log
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (1, 'a', '2008-08-01 10:21:39'),
+    (2, 'b', '2000-01-01 00:00:00'),
+    (3, 'e', '2007-06-04 20:03:11'),
+    (4, 'd', '2003-11-30 05:01:03'),
+    (5, 'c', '2001-12-31 23:59:59');
+
+  --echo
+  --echo select test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    eval $CHILD2_1_SELECT_TABLES2;
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_3_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+
+  --echo
+  --echo fail-over test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_3_HA_DROP_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_3_HA_DROP_TABLES;
+    --enable_warnings
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  eval $MASTER_1_CHECK_HA_STATUS;
+  --error 12511
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (6, 'e', '2011-05-05 20:04:05');
+  eval $MASTER_1_CHECK_LINK_STATUS;
+  eval $MASTER_1_CHECK_LINK_FAILED_LOG;
+  eval $MASTER_1_CHECK_HA_STATUS;
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (6, 'e', '2011-05-05 20:04:05');
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    eval $CHILD2_1_SELECT_TABLES2;
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    eval $CHILD3_1_CHECK_LINK_STATUS;
+    eval $CHILD3_1_CHECK_LINK_FAILED_LOG;
+    --connection child3_2
+    eval $CHILD3_2_CHECK_LINK_STATUS;
+    eval $CHILD3_2_CHECK_LINK_FAILED_LOG;
+    --connection child3_3
+    eval $CHILD3_3_CHECK_LINK_STATUS;
+    eval $CHILD3_3_CHECK_LINK_FAILED_LOG;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+
+  --echo
+  --echo recovery test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_3_HA_CREATE_TABLES;
+    }
+    eval $CHILD2_3_HA_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    eval $CHILD3_1_SET_RECOVERY_STATUS_P_2_1;
+    eval $CHILD3_1_CHECK_LINK_STATUS;
+    --connection child3_2
+    eval $CHILD3_2_SET_RECOVERY_STATUS_P_2_1;
+    eval $CHILD3_2_CHECK_LINK_STATUS;
+    --connection child3_3
+    eval $CHILD3_3_SET_RECOVERY_STATUS_P_2_1;
+    eval $CHILD3_3_CHECK_LINK_STATUS;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  eval $MASTER_1_SET_RECOVERY_STATUS_P_2_1;
+  eval $MASTER_1_CHECK_LINK_STATUS;
+  eval $MASTER_1_COPY_TABLES_P_2_1;
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    eval $CHILD3_1_SET_OK_STATUS_P_2_1;
+    eval $CHILD3_1_CHECK_LINK_STATUS;
+    --connection child3_2
+    eval $CHILD3_2_SET_OK_STATUS_P_2_1;
+    eval $CHILD3_2_CHECK_LINK_STATUS;
+    --connection child3_3
+    eval $CHILD3_3_SET_OK_STATUS_P_2_1;
+    eval $CHILD3_3_CHECK_LINK_STATUS;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  eval $MASTER_1_SET_OK_STATUS_P_2_1;
+  eval $MASTER_1_CHECK_LINK_STATUS;
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (8, 'g', '2011-05-05 21:33:30'),
+    (9, 'h', '2011-05-05 22:32:10');
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  DROP TABLE ta_l2;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    eval $CHILD2_1_SELECT_TABLES2;
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_3_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    --disable_warnings
+    eval $CHILD3_1_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    --connection child3_2
+    --disable_warnings
+    eval $CHILD3_2_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    --connection child3_3
+    --disable_warnings
+    eval $CHILD3_3_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+if ($HAVE_PARTITION)
+{
+  --echo
+  --echo create table with partition test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES;
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES;
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES;
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_3_DROP_TABLES;
+      echo CHILD2_3_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_3_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_3_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    --disable_warnings
+    eval $CHILD3_1_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    eval $CHILD3_1_CREATE_TABLES_HA_AS_P_2_1;
+    --connection child3_2
+    --disable_warnings
+    eval $CHILD3_2_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    eval $CHILD3_2_CREATE_TABLES_HA_AS_P_2_1;
+    --connection child3_3
+    --disable_warnings
+    eval $CHILD3_3_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    eval $CHILD3_3_CREATE_TABLES_HA_AS_P_2_1;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_warnings
+  DROP TABLE IF EXISTS ta_l2;
+  --enable_warnings
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_AS_P_2_1;
+  eval CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_HA_AS_P_2_1;
+  --enable_query_log
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (1, 'a', '2008-08-01 10:21:39'),
+    (2, 'b', '2000-01-01 00:00:00'),
+    (3, 'e', '2007-06-04 20:03:11'),
+    (4, 'd', '2003-11-30 05:01:03'),
+    (5, 'c', '2001-12-31 23:59:59');
+
+  --echo
+  --echo select test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    eval $CHILD2_1_SELECT_TABLES2;
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_3_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+
+  --echo
+  --echo fail-over test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_HA_AS_DROP_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_HA_AS_DROP_TABLES2;
+    --enable_warnings
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  eval $MASTER_1_CHECK_HA_STATUS;
+  --error 12511
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (6, 'e', '2011-05-05 20:04:05');
+  eval $MASTER_1_CHECK_LINK_STATUS;
+  eval $MASTER_1_CHECK_LINK_FAILED_LOG;
+  eval $MASTER_1_CHECK_HA_STATUS;
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (6, 'e', '2011-05-05 20:04:05');
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_3_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    eval $CHILD3_1_CHECK_LINK_STATUS;
+    eval $CHILD3_1_CHECK_LINK_FAILED_LOG;
+    --connection child3_2
+    eval $CHILD3_2_CHECK_LINK_STATUS;
+    eval $CHILD3_2_CHECK_LINK_FAILED_LOG;
+    --connection child3_3
+    eval $CHILD3_3_CHECK_LINK_STATUS;
+    eval $CHILD3_3_CHECK_LINK_FAILED_LOG;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+
+  --echo
+  --echo recovery test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_HA_AS_CREATE_TABLES2;
+    }
+    eval $CHILD2_1_HA_AS_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    eval $CHILD3_1_SET_OK_STATUS_AS_P_2_1;
+    eval $CHILD3_1_CHECK_LINK_STATUS;
+    --connection child3_2
+    eval $CHILD3_2_SET_OK_STATUS_AS_P_2_1;
+    eval $CHILD3_2_CHECK_LINK_STATUS;
+    --connection child3_3
+    eval $CHILD3_3_SET_OK_STATUS_AS_P_2_1;
+    eval $CHILD3_3_CHECK_LINK_STATUS;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  eval $MASTER_1_SET_OK_STATUS_AS_P_2_1;
+  eval $MASTER_1_CHECK_LINK_STATUS;
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (8, 'g', '2011-05-05 21:33:30'),
+    (9, 'h', '2011-05-05 22:32:10');
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  DROP TABLE ta_l2;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    eval $CHILD2_1_SELECT_TABLES2;
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_3_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    --disable_warnings
+    eval $CHILD3_1_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    --connection child3_2
+    --disable_warnings
+    eval $CHILD3_2_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    --connection child3_3
+    --disable_warnings
+    eval $CHILD3_3_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  --connection child2_3
+  DROP DATABASE IF EXISTS auto_test_remote3;
+}
+if ($USE_CHILD_GROUP3)
+{
+  --connection child3_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  --connection child3_2
+  DROP DATABASE IF EXISTS auto_test_local;
+  --connection child3_3
+  DROP DATABASE IF EXISTS auto_test_local;
+}
+--disable_query_log
+--disable_result_log
+--source ha_test_deinit.inc
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+}
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/oracle2/t/ha_test_deinit.inc b/storage/spider/mysql-test/spider/oracle2/t/ha_test_deinit.inc
new file mode 100644
index 00000000..53d0409d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/ha_test_deinit.inc
@@ -0,0 +1,30 @@
+# get connection and exist engine test
+--echo for master_1
+--connection master_1
+--source ../include/ha_deinit_master_1.inc
+--echo for child2
+if ($USE_CHILD_GROUP2)
+{
+  --echo child2_1
+  --connection child2_1
+  --source ../include/ha_deinit_child2_1.inc
+  --echo child2_2
+  --connection child2_2
+  --source ../include/ha_deinit_child2_2.inc
+  --echo child2_3
+  --connection child2_3
+  --source ../include/ha_deinit_child2_3.inc
+}
+--echo for child3
+if ($USE_CHILD_GROUP3)
+{
+  --echo child3_1
+  --connection child3_1
+  --source ../include/ha_deinit_child3_1.inc
+  --echo child3_2
+  --connection child3_2
+  --source ../include/ha_deinit_child3_2.inc
+  --echo child3_3
+  --connection child3_3
+  --source ../include/ha_deinit_child3_3.inc
+}
diff --git a/storage/spider/mysql-test/spider/oracle2/t/ha_test_init.inc b/storage/spider/mysql-test/spider/oracle2/t/ha_test_init.inc
new file mode 100644
index 00000000..70576ab1
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/ha_test_init.inc
@@ -0,0 +1,30 @@
+# get connection and exist engine test
+--echo for master_1
+--connection master_1
+--source ../include/ha_init_master_1.inc
+--echo for child2
+if ($USE_CHILD_GROUP2)
+{
+  --echo child2_1
+  --connection child2_1
+  --source ../include/ha_init_child2_1.inc
+  --echo child2_2
+  --connection child2_2
+  --source ../include/ha_init_child2_2.inc
+  --echo child2_3
+  --connection child2_3
+  --source ../include/ha_init_child2_3.inc
+}
+--echo for child3
+if ($USE_CHILD_GROUP3)
+{
+  --echo child3_1
+  --connection child3_1
+  --source ../include/ha_init_child3_1.inc
+  --echo child3_2
+  --connection child3_2
+  --source ../include/ha_init_child3_2.inc
+  --echo child3_3
+  --connection child3_3
+  --source ../include/ha_init_child3_3.inc
+}
diff --git a/storage/spider/mysql-test/spider/oracle2/t/have_engine.inc b/storage/spider/mysql-test/spider/oracle2/t/have_engine.inc
new file mode 100644
index 00000000..64bef749
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/have_engine.inc
@@ -0,0 +1,7 @@
+if (!`SELECT count(*) FROM information_schema.engines WHERE
+      (support = 'YES' OR support = 'DEFAULT') AND
+      engine = '$TEST_ENGINE_TYPE'`)
+{
+  SELECT engine, support FROM information_schema.engines;
+  --let $SKIP_REASON= "Need $TEST_ENGINE_TYPE engine"
+}
diff --git a/storage/spider/mysql-test/spider/oracle2/t/have_func.inc b/storage/spider/mysql-test/spider/oracle2/t/have_func.inc
new file mode 100644
index 00000000..e0823e73
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/have_func.inc
@@ -0,0 +1,5 @@
+if (!`SELECT count(*) FROM mysql.func WHERE name = '$TEST_FUNC_NAME'`)
+{
+  SELECT name FROM mysql.func;
+  --let $SKIP_REASON= "Need $TEST_FUNC_NAME function"
+}
diff --git a/storage/spider/mysql-test/spider/oracle2/t/have_partition.inc b/storage/spider/mysql-test/spider/oracle2/t/have_partition.inc
new file mode 100644
index 00000000..b6e69947
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/have_partition.inc
@@ -0,0 +1,7 @@
+let $HAVE_PARTITION= 0;
+if (`SELECT count(*) FROM information_schema.plugins WHERE
+      plugin_status = 'ACTIVE' AND
+      plugin_name = 'partition'`)
+{
+  let $HAVE_PARTITION= 1;
+}
diff --git a/storage/spider/mysql-test/spider/oracle2/t/have_trigger.inc b/storage/spider/mysql-test/spider/oracle2/t/have_trigger.inc
new file mode 100644
index 00000000..32de484b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/have_trigger.inc
@@ -0,0 +1,2 @@
+let $HAVE_TRIGGER= `SELECT COUNT(*) FROM information_schema.tables
+  WHERE TABLE_SCHEMA = 'information_schema' AND TABLE_NAME = 'TRIGGERS'`;
diff --git a/storage/spider/mysql-test/spider/oracle2/t/hs_test_deinit.inc b/storage/spider/mysql-test/spider/oracle2/t/hs_test_deinit.inc
new file mode 100644
index 00000000..7ec2e981
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/hs_test_deinit.inc
@@ -0,0 +1,17 @@
+# get connection and exist engine test
+--echo for master_1
+--connection master_1
+--source ../include/hs_deinit_master_1.inc
+--echo for child2
+if ($USE_CHILD_GROUP2)
+{
+  --echo child2_1
+  --connection child2_1
+  --source ../include/hs_deinit_child2_1.inc
+  --echo child2_2
+  --connection child2_2
+  --source ../include/hs_deinit_child2_2.inc
+  --echo child2_3
+  --connection child2_3
+  --source ../include/hs_deinit_child2_3.inc
+}
diff --git a/storage/spider/mysql-test/spider/oracle2/t/hs_test_init.inc b/storage/spider/mysql-test/spider/oracle2/t/hs_test_init.inc
new file mode 100644
index 00000000..831bf479
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/hs_test_init.inc
@@ -0,0 +1,17 @@
+# get connection and exist engine test
+--echo for master_1
+--connection master_1
+--source ../include/hs_init_master_1.inc
+--echo for child2
+if ($USE_CHILD_GROUP2)
+{
+  --echo child2_1
+  --connection child2_1
+  --source ../include/hs_init_child2_1.inc
+  --echo child2_2
+  --connection child2_2
+  --source ../include/hs_init_child2_2.inc
+  --echo child2_3
+  --connection child2_3
+  --source ../include/hs_init_child2_3.inc
+}
diff --git a/storage/spider/mysql-test/spider/oracle2/t/slave_test_deinit.inc b/storage/spider/mysql-test/spider/oracle2/t/slave_test_deinit.inc
new file mode 100644
index 00000000..e9d99b7a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/slave_test_deinit.inc
@@ -0,0 +1,6 @@
+# get connection and exist engine test
+--echo for slave1_1
+--connection slave1_1
+STOP SLAVE;
+--source ../include/deinit_slave1_1.inc
+--disconnect slave1_1
diff --git a/storage/spider/mysql-test/spider/oracle2/t/slave_test_init.inc b/storage/spider/mysql-test/spider/oracle2/t/slave_test_init.inc
new file mode 100644
index 00000000..739d8897
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/slave_test_init.inc
@@ -0,0 +1,44 @@
+# get connection and exist engine test
+--echo for slave1_1
+--source connect_slave1_1.inc
+--connection slave1_1
+SET SESSION sql_log_bin= 0;
+--let $SLAVE1_1_SERVER_ID=`SELECT @@global.server_id`
+--let $TEST_ENGINE_TYPE= $SLAVE1_1_ENGINE_TYPE
+--source have_partition.inc
+--source have_trigger.inc
+--source ../include/init_slave1_1.inc
+--source have_engine.inc
+--let $SLAVE1_1_SLAVE_STATUS=`SHOW SLAVE STATUS`
+if (!$SLAVE1_1_SLAVE_STATUS)
+{
+  eval CHANGE MASTER TO
+    MASTER_HOST = '127.0.0.1',
+    MASTER_USER = 'root',
+    MASTER_PASSWORD = '',
+    MASTER_PORT = $MASTER_1_MYPORT
+  ;
+}
+START SLAVE;
+--connection master_1
+call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+--connection slave1_1
+call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+  --connection child2_2
+  call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+  --connection child2_3
+  call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+}
+if ($USE_CHILD_GROUP3)
+{
+  --connection child3_1
+  call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+  --connection child3_2
+  call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+  --connection child3_3
+  call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+}
diff --git a/storage/spider/mysql-test/spider/oracle2/t/spider3_fixes.test b/storage/spider/mysql-test/spider/oracle2/t/spider3_fixes.test
new file mode 100644
index 00000000..13fa6f5f
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/spider3_fixes.test
@@ -0,0 +1,292 @@
+# This test tests for Spider 3.0's bug fixes
+source include/have_log_bin.inc;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--source slave_test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+
+--echo
+--echo 3.1
+--echo auto_increment
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_INCREMENT_TABLES1;
+    echo CHILD2_1_CREATE_INCREMENT_TABLES1;
+    echo CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+    echo CHILD2_1_AUTO_INCREMENT_OFFSET2;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_INCREMENT_TABLES1;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_INCREMENT_TABLES1;
+  eval $CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+  eval $CHILD2_1_AUTO_INCREMENT_OFFSET2;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+if ($USE_REPLICATION)
+{
+  save_master_pos;
+  --connection slave1_1
+  sync_with_master;
+  --connection master_1
+  --disable_query_log
+  SET SESSION sql_log_bin= 0;
+  --enable_query_log
+}
+--disable_warnings
+DROP TABLE IF EXISTS t1, t2;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE t1 (
+  id int(11) NOT NULL AUTO_INCREMENT,
+  PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_1;
+echo CREATE TABLE t2 (
+  id int(11) NOT NULL AUTO_INCREMENT,
+  PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_1;
+echo MASTER_1_AUTO_INCREMENT_INCREMENT2;
+echo MASTER_1_AUTO_INCREMENT_OFFSET2;
+eval CREATE TABLE t1 (
+  id int(11) NOT NULL AUTO_INCREMENT,
+  PRIMARY KEY (id)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_INCREMENT1_1;
+eval CREATE TABLE t2 (
+  id int(11) NOT NULL AUTO_INCREMENT,
+  PRIMARY KEY (id)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_INCREMENT1_1;
+eval $MASTER_1_AUTO_INCREMENT_INCREMENT2;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET2;
+if ($USE_REPLICATION)
+{
+  SET SESSION sql_log_bin= 1;
+  --connection slave1_1
+  --disable_warnings
+  DROP TABLE IF EXISTS t1, t2;
+  --enable_warnings
+  echo CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_1;
+  echo CREATE TABLE t2 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_1;
+  eval CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $SLAVE1_1_ENGINE $SLAVE1_1_CHARSET $SLAVE1_1_COMMENT_INCREMENT1_1;
+  eval CREATE TABLE t2 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $SLAVE1_1_ENGINE $SLAVE1_1_CHARSET $SLAVE1_1_COMMENT_INCREMENT1_1;
+  --connection master_1
+}
+--enable_query_log
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t2 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t2;
+--disable_query_log
+echo MASTER_1_AUTO_INCREMENT_OFFSET3;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET3;
+--enable_query_log
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+--disable_query_log
+echo MASTER_1_AUTO_INCREMENT_OFFSET4;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET4;
+--enable_query_log
+INSERT INTO t2 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t2;
+--disable_query_log
+echo MASTER_1_AUTO_INCREMENT_OFFSET3;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET3;
+--enable_query_log
+INSERT INTO t1 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+SELECT id FROM t1 ORDER BY id;
+--disable_query_log
+echo MASTER_1_AUTO_INCREMENT_OFFSET4;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET4;
+--enable_query_log
+INSERT INTO t2 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+SELECT id FROM t2 ORDER BY id;
+TRUNCATE TABLE t1;
+TRUNCATE TABLE t2;
+INSERT INTO t1 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+SELECT id FROM t1 ORDER BY id;
+INSERT INTO t2 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+SELECT id FROM t2 ORDER BY id;
+SET INSERT_ID=5000;
+--disable_query_log
+echo MASTER_1_AUTO_INCREMENT_OFFSET3;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET3;
+--enable_query_log
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+--disable_query_log
+echo MASTER_1_AUTO_INCREMENT_OFFSET4;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET4;
+--enable_query_log
+INSERT INTO t2 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t2;
+INSERT INTO t1 (id) VALUES (10000);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t2 (id) VALUES (1000);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t2;
+if ($USE_REPLICATION)
+{
+  save_master_pos;
+  --connection slave1_1
+  sync_with_master;
+  SELECT id FROM t1 ORDER BY id;
+  --connection master_1
+  --disable_query_log
+  SET SESSION sql_log_bin= 0;
+  --enable_query_log
+}
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_INCREMENT_TABLES1;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+    echo CHILD2_1_AUTO_INCREMENT_OFFSET1;
+  }
+  eval $CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+  eval $CHILD2_1_AUTO_INCREMENT_OFFSET1;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source slave_test_deinit.inc
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/oracle2/t/spider3_fixes_part.test b/storage/spider/mysql-test/spider/oracle2/t/spider3_fixes_part.test
new file mode 100644
index 00000000..3288c490
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/spider3_fixes_part.test
@@ -0,0 +1,345 @@
+# This test tests for Spider 3.0's bug fixes
+source include/have_log_bin.inc;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--source slave_test_init.inc
+--enable_result_log
+--enable_query_log
+if (!$HAVE_PARTITION)
+{
+  --disable_query_log
+  --disable_result_log
+  --source slave_test_deinit.inc
+  --source test_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+
+--echo auto_increment with partition
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_INCREMENT_TABLES1;
+      echo CHILD2_1_CREATE_INCREMENT_TABLES1;
+      echo CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+      echo CHILD2_1_AUTO_INCREMENT_OFFSET2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_INCREMENT_TABLES1;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_INCREMENT_TABLES1;
+    eval $CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+    eval $CHILD2_1_AUTO_INCREMENT_OFFSET2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_INCREMENT_TABLES1;
+      echo CHILD2_2_CREATE_INCREMENT_TABLES1;
+      echo CHILD2_2_AUTO_INCREMENT_INCREMENT2;
+      echo CHILD2_2_AUTO_INCREMENT_OFFSET2;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_INCREMENT_TABLES1;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_INCREMENT_TABLES1;
+    eval $CHILD2_2_AUTO_INCREMENT_INCREMENT2;
+    eval $CHILD2_2_AUTO_INCREMENT_OFFSET2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  if ($USE_REPLICATION)
+  {
+    save_master_pos;
+    --connection slave1_1
+    sync_with_master;
+    --connection master_1
+    --disable_query_log
+    SET SESSION sql_log_bin= 0;
+    --enable_query_log
+  }
+  --disable_warnings
+  DROP TABLE IF EXISTS t1, t2;
+  --enable_warnings
+  --disable_query_log
+  echo CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_P_1;
+  echo CREATE TABLE t2 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_P_1;
+  echo MASTER_1_AUTO_INCREMENT_INCREMENT2;
+  echo MASTER_1_AUTO_INCREMENT_OFFSET2;
+  eval CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_INCREMENT1_P_1;
+  eval CREATE TABLE t2 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_INCREMENT1_P_1;
+  eval $MASTER_1_AUTO_INCREMENT_INCREMENT2;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET2;
+  if ($USE_REPLICATION)
+  {
+    SET SESSION sql_log_bin= 1;
+    --connection slave1_1
+    --disable_warnings
+    DROP TABLE IF EXISTS t1, t2;
+    --enable_warnings
+    echo CREATE TABLE t1 (
+      id int(11) NOT NULL AUTO_INCREMENT,
+      PRIMARY KEY (id)
+    ) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_P_1;
+    echo CREATE TABLE t2 (
+      id int(11) NOT NULL AUTO_INCREMENT,
+      PRIMARY KEY (id)
+    ) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_P_1;
+    eval CREATE TABLE t1 (
+      id int(11) NOT NULL AUTO_INCREMENT,
+      PRIMARY KEY (id)
+    ) $SLAVE1_1_ENGINE $SLAVE1_1_CHARSET $SLAVE1_1_COMMENT_INCREMENT1_P_1;
+    eval CREATE TABLE t2 (
+      id int(11) NOT NULL AUTO_INCREMENT,
+      PRIMARY KEY (id)
+    ) $SLAVE1_1_ENGINE $SLAVE1_1_CHARSET $SLAVE1_1_COMMENT_INCREMENT1_P_1;
+    --connection master_1
+  }
+  --enable_query_log
+  INSERT INTO t1 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t2 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t2;
+  --disable_query_log
+  echo MASTER_1_AUTO_INCREMENT_OFFSET3;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET3;
+  --enable_query_log
+  INSERT INTO t1 (id) VALUES (null);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  --disable_query_log
+  echo MASTER_1_AUTO_INCREMENT_OFFSET4;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET4;
+  --enable_query_log
+  INSERT INTO t2 (id) VALUES (null);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t2;
+  --disable_query_log
+  echo MASTER_1_AUTO_INCREMENT_OFFSET3;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET3;
+  --enable_query_log
+  INSERT INTO t1 () VALUES (),(),(),();
+  SELECT LAST_INSERT_ID();
+  SELECT id FROM t1 ORDER BY id;
+  --disable_query_log
+  echo MASTER_1_AUTO_INCREMENT_OFFSET4;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET4;
+  --enable_query_log
+  INSERT INTO t2 () VALUES (),(),(),();
+  SELECT LAST_INSERT_ID();
+  SELECT id FROM t2 ORDER BY id;
+  TRUNCATE TABLE t1;
+  TRUNCATE TABLE t2;
+  INSERT INTO t1 () VALUES (),(),(),();
+  SELECT LAST_INSERT_ID();
+  SELECT id FROM t1 ORDER BY id;
+  INSERT INTO t2 () VALUES (),(),(),();
+  SELECT LAST_INSERT_ID();
+  SELECT id FROM t2 ORDER BY id;
+  SET INSERT_ID=5000;
+  --disable_query_log
+  echo MASTER_1_AUTO_INCREMENT_OFFSET3;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET3;
+  --enable_query_log
+  INSERT INTO t1 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  --disable_query_log
+  echo MASTER_1_AUTO_INCREMENT_OFFSET4;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET4;
+  --enable_query_log
+  INSERT INTO t2 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t2;
+  INSERT INTO t1 (id) VALUES (10000);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t2 (id) VALUES (1000);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t2;
+  if ($USE_REPLICATION)
+  {
+    save_master_pos;
+    --connection slave1_1
+    sync_with_master;
+    SELECT id FROM t1 ORDER BY id;
+    --connection master_1
+    --disable_query_log
+    SET SESSION sql_log_bin= 0;
+    --enable_query_log
+  }
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_1_SELECT_INCREMENT_TABLES1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+      echo CHILD2_1_AUTO_INCREMENT_OFFSET1;
+    }
+    eval $CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+    eval $CHILD2_1_AUTO_INCREMENT_OFFSET1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_2_SELECT_INCREMENT_TABLES1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_AUTO_INCREMENT_INCREMENT1;
+      echo CHILD2_2_AUTO_INCREMENT_OFFSET1;
+    }
+    eval $CHILD2_2_AUTO_INCREMENT_INCREMENT1;
+    eval $CHILD2_2_AUTO_INCREMENT_OFFSET1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source slave_test_deinit.inc
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/oracle2/t/spider_fixes.test b/storage/spider/mysql-test/spider/oracle2/t/spider_fixes.test
new file mode 100644
index 00000000..04e806fb
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/spider_fixes.test
@@ -0,0 +1,1419 @@
+# This test tests for Spider's bug fixes
+source include/have_log_bin.inc;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--source slave_test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table and insert
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tb_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+eval CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+--enable_query_log
+INSERT INTO tb_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+
+--echo
+--echo 2.13
+--echo select table with "order by desc" and "<"
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+WHERE a < 5 ORDER BY a DESC LIMIT 3;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select table with "order by desc" and "<="
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+WHERE a <= 5 ORDER BY a DESC LIMIT 3;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo 2.14
+--echo update table with range scan and split_read
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l SET c = '2000-02-02 00:00:00' WHERE a > 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo 2.15
+--echo select table with range scan
+TRUNCATE TABLE ta_l;
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES6;
+    echo CHILD2_1_CREATE_TABLES6;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES6;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES6;
+  --enable_query_log
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_query_log
+echo CREATE TABLE ta_l (
+  a int(11) NOT NULL DEFAULT '0',
+  b char(1) DEFAULT NULL,
+  c datetime DEFAULT NULL,
+  PRIMARY KEY (a, b, c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT5_2_1;
+eval CREATE TABLE ta_l (
+  a int(11) NOT NULL DEFAULT '0',
+  b char(1) DEFAULT NULL,
+  c datetime DEFAULT NULL,
+  PRIMARY KEY (a, b, c)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT5_2_1;
+--enable_query_log
+INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b >= 'b'
+AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b > 'b'
+AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a >= 4 AND b = 'd'
+AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a > 4 AND b = 'c'
+AND c = '2001-12-31 23:59:59';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b <= 'd'
+AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b < 'e'
+AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a <= 4 AND b = 'b'
+AND c = '2000-01-01 00:00:00';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a < 4 AND b = 'b'
+AND c = '2000-01-01 00:00:00';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b >= 'b'
+AND b <= 'd' AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b > 'b'
+AND b < 'e' AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a <= 4 AND a >= 1
+AND b >= 'b' AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a < 4 AND a > 1
+AND b >= 'b' AND c = '2000-01-01 00:00:00';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo 2.16
+--echo auto_increment insert with trigger
+if ($HAVE_TRIGGER)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_result_log
+    }
+    --disable_query_log
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      echo CHILD2_1_DROP_TABLES4;
+      echo CHILD2_1_CREATE_TABLES4;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES4;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES4;
+    --enable_query_log
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l_auto_inc (
+    a INT AUTO_INCREMENT,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT3_2_1;
+  eval CREATE TABLE ta_l_auto_inc (
+    a INT AUTO_INCREMENT,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT3_2_1;
+  echo CREATE TABLE tc_l (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+  eval CREATE TABLE tc_l (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+  --enable_query_log
+  --eval CREATE TRIGGER ins_ta_l_auto_inc AFTER INSERT ON ta_l_auto_inc FOR EACH ROW BEGIN INSERT INTO tc_l (a, b, c) VALUES (NEW.a, NEW.b, NEW.c); END;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  INSERT INTO ta_l_auto_inc (a, b, c) VALUES
+  (NULL, 's', '2008-12-31 20:59:59');
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_1_SELECT_TABLES4;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM tc_l ORDER BY a;
+}
+
+--echo
+--echo 2.17
+--echo engine-condition-pushdown with "or" and joining
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l WHERE a = 1 OR a IN (SELECT a FROM tb_l);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo 2.23
+--echo index merge
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_result_log
+  }
+  --disable_query_log
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    echo CHILD2_1_DROP_TABLES5;
+    echo CHILD2_1_CREATE_TABLES5;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES5;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES5;
+  --enable_query_log
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_query_log
+echo CREATE TABLE ta_l_int (
+  a INT AUTO_INCREMENT,
+  b INT DEFAULT 10,
+  c INT DEFAULT 11,
+  PRIMARY KEY(a),
+  KEY idx1(b),
+  KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1;
+eval CREATE TABLE ta_l_int (
+  a INT AUTO_INCREMENT,
+  b INT DEFAULT 10,
+  c INT DEFAULT 11,
+  PRIMARY KEY(a),
+  KEY idx1(b),
+  KEY idx2(c)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+--enable_query_log
+INSERT INTO ta_l_int (a, b, c) VALUES (1, 2, 3);
+INSERT INTO ta_l_int (a, b, c) SELECT a + 1, b + 1, c + 1 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 2, b + 2, c + 2 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 4, b + 4, c + 4 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 8, b + 8, c + 8 FROM ta_l_int;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l_int force index(primary, idx1, idx2)
+WHERE a = 5 OR b = 5 OR c = 5 ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo 2.24
+--echo index scan update without PK
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l_int;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l_int (
+  a INT NOT NULL,
+  b INT DEFAULT 10,
+  c INT DEFAULT 11,
+  KEY idx1(b),
+  KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1;
+if ($MASTER_1_NEEDPK)
+{
+  --error ER_REQUIRES_PRIMARY_KEY
+  eval CREATE TABLE ta_l_int (
+    a INT NOT NULL,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    KEY idx1(b),
+    KEY idx2(c)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+  eval CREATE TABLE ta_l_int (
+    a INT NOT NULL,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    PRIMARY KEY(a),
+    KEY idx1(b),
+    KEY idx2(c)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+}
+if (!$MASTER_1_NEEDPK)
+{
+  eval CREATE TABLE ta_l_int (
+    a INT NOT NULL,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    KEY idx1(b),
+    KEY idx2(c)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+}
+--enable_query_log
+SELECT a, b, c FROM ta_l_int ORDER BY a;
+INSERT INTO ta_l_int (a, b, c) VALUES (0, 2, 3);
+INSERT INTO ta_l_int (a, b, c) VALUES (18, 2, 3);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l_int SET c = 4 WHERE b = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%update %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l_int ORDER BY a;
+
+
+--echo
+--echo 2.25
+--echo direct order limit
+--connection master_1
+eval $MASTER_1_CHECK_DIRECT_ORDER_LIMIT_STATUS;
+SELECT a, b, c FROM ta_l_int ORDER BY a LIMIT 3;
+eval $MASTER_1_CHECK_DIRECT_ORDER_LIMIT_STATUS;
+
+
+--echo
+--echo 2.26
+--echo lock tables
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_LOCK_TABLES1;
+    echo CHILD2_1_DROP_LOCK_TABLES2;
+    echo CHILD2_1_CREATE_LOCK_TABLES1;
+    echo CHILD2_1_CREATE_LOCK_TABLES2;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_LOCK_TABLES1;
+  eval $CHILD2_1_DROP_LOCK_TABLES2;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_LOCK_TABLES1;
+  eval $CHILD2_1_CREATE_LOCK_TABLES2;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_2_DROP_LOCK_TABLES1;
+    echo CHILD2_2_DROP_LOCK_TABLES2;
+    echo CHILD2_2_CREATE_LOCK_TABLES1;
+    echo CHILD2_2_CREATE_LOCK_TABLES2;
+  }
+  --disable_warnings
+  eval $CHILD2_2_DROP_LOCK_TABLES1;
+  eval $CHILD2_2_DROP_LOCK_TABLES2;
+  --enable_warnings
+  eval $CHILD2_2_CREATE_LOCK_TABLES1;
+  eval $CHILD2_2_CREATE_LOCK_TABLES2;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS t1;
+DROP TABLE IF EXISTS t2;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE t1 (
+  id int(11) NOT NULL,
+  PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_LOCK1;
+eval CREATE TABLE t1 (
+  id int(11) NOT NULL,
+  PRIMARY KEY (id)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_LOCK1;
+echo CREATE TABLE t2 (
+  id int(11) NOT NULL,
+  PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_LOCK2;
+eval CREATE TABLE t2 (
+  id int(11) NOT NULL,
+  PRIMARY KEY (id)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_LOCK2;
+--enable_query_log
+LOCK TABLES t1 READ, t2 READ;
+UNLOCK TABLES;
+
+
+--echo
+--echo auto_increment
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_INCREMENT_TABLES1;
+    echo CHILD2_1_CREATE_INCREMENT_TABLES1;
+    echo CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+    echo CHILD2_1_AUTO_INCREMENT_OFFSET2;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_INCREMENT_TABLES1;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_INCREMENT_TABLES1;
+  eval $CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+  eval $CHILD2_1_AUTO_INCREMENT_OFFSET2;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+if ($USE_REPLICATION)
+{
+  save_master_pos;
+  --connection slave1_1
+  sync_with_master;
+  --connection master_1
+  --disable_query_log
+  SET SESSION sql_log_bin= 0;
+  --enable_query_log
+}
+--disable_warnings
+DROP TABLE IF EXISTS t1;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE t1 (
+  id int(11) NOT NULL AUTO_INCREMENT,
+  PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_1;
+echo MASTER_1_AUTO_INCREMENT_INCREMENT2;
+echo MASTER_1_AUTO_INCREMENT_OFFSET2;
+eval CREATE TABLE t1 (
+  id int(11) NOT NULL AUTO_INCREMENT,
+  PRIMARY KEY (id)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_INCREMENT1_1;
+eval $MASTER_1_AUTO_INCREMENT_INCREMENT2;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET2;
+if ($USE_REPLICATION)
+{
+  SET SESSION sql_log_bin= 1;
+  --connection slave1_1
+  --disable_warnings
+  DROP TABLE IF EXISTS t1;
+  --enable_warnings
+  echo CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_1;
+  eval CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $SLAVE1_1_ENGINE $SLAVE1_1_CHARSET $SLAVE1_1_COMMENT_INCREMENT1_1;
+  --connection master_1
+}
+--enable_query_log
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t1 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+SELECT id FROM t1 ORDER BY id;
+SET INSERT_ID=5000;
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t1 (id) VALUES (10000);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t1 (id) VALUES (1000);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+if ($USE_REPLICATION)
+{
+  save_master_pos;
+  --connection slave1_1
+  sync_with_master;
+  SELECT id FROM t1 ORDER BY id;
+  --connection master_1
+  --disable_query_log
+  SET SESSION sql_log_bin= 0;
+  --enable_query_log
+}
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_INCREMENT_TABLES1;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+    echo CHILD2_1_AUTO_INCREMENT_OFFSET1;
+  }
+  eval $CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+  eval $CHILD2_1_AUTO_INCREMENT_OFFSET1;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+
+--echo
+--echo read only
+let $MASTER_1_ENGINE_IS_SPIDER=
+  `SELECT IF('$MASTER_1_ENGINE_TYPE' = 'Spider' OR
+    '$MASTER_1_HIDDEN_ENGINE_TYPE' = 'Spider', 1, 0)`;
+if ($MASTER_1_ENGINE_IS_SPIDER)
+{
+  --connection master_1
+  --disable_warnings
+  DROP TABLE IF EXISTS t1;
+  --enable_warnings
+  --disable_query_log
+  echo CREATE TABLE t1 (
+    id int(11) NOT NULL,
+    PRIMARY KEY (id)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_READONLY1_1;
+  eval CREATE TABLE t1 (
+    id int(11) NOT NULL,
+    PRIMARY KEY (id)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_READONLY1_1;
+  --let $MIN_VAL= `SELECT MIN(id) FROM t1`
+  --enable_query_log
+  SELECT id FROM t1 ORDER BY id;
+  --error 12518
+  INSERT INTO t1 (id) VALUES (1);
+  --error 12518
+  eval UPDATE t1 SET id = 4 WHERE id = $MIN_VAL;
+  --error 12518
+  eval DELETE FROM t1 WHERE id = $MIN_VAL;
+  --error 12518
+  DELETE FROM t1;
+  --error 12518
+  TRUNCATE t1;
+}
+if (!$MASTER_1_ENGINE_IS_SPIDER)
+{
+  --echo skipped
+}
+
+
+--echo
+--echo 2.27
+--echo error mode
+if ($MASTER_1_ENGINE_IS_SPIDER)
+{
+  --connection master_1
+  --disable_warnings
+  DROP TABLE IF EXISTS t1;
+  --enable_warnings
+  --disable_query_log
+  echo CREATE TABLE t1 (
+    id int(11) NOT NULL,
+    PRIMARY KEY (id)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_ERROR_MODE1_1;
+  eval CREATE TABLE t1 (
+    id int(11) NOT NULL,
+    PRIMARY KEY (id)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_ERROR_MODE1_1;
+  --enable_query_log
+  SELECT id FROM t1 ORDER BY id;
+  INSERT INTO t1 (id) VALUES (1);
+  DELETE FROM t1;
+  TRUNCATE t1;
+}
+if (!$MASTER_1_ENGINE_IS_SPIDER)
+{
+  --echo skipped
+}
+
+
+--echo
+--echo 3.0
+--echo is null
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_result_log
+  }
+  --disable_query_log
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    echo CHILD2_1_DROP_TEXT_KEY_TABLES1;
+    echo CHILD2_1_CREATE_TEXT_KEY_TABLES1;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TEXT_KEY_TABLES1;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TEXT_KEY_TABLES1;
+  --enable_query_log
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS t1;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE t1 (
+  a VARCHAR(255),
+  b VARCHAR(255),
+  c VARCHAR(255),
+  KEY idx1(a,b),
+  KEY idx2(b),
+  PRIMARY KEY(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_TEXT_KEY1_1;
+eval CREATE TABLE t1 (
+  a VARCHAR(255),
+  b VARCHAR(255),
+  c VARCHAR(255),
+  KEY idx1(a,b),
+  KEY idx2(b),
+  PRIMARY KEY(c)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_TEXT_KEY1_1;
+--enable_query_log
+insert into t1 values (null, null, '2048');
+insert into t1 values ('1', '1', '1');
+insert into t1 select a + 1,   b + 1,   c + 1   from t1;
+insert into t1 select a + 2,   b + 2,   c + 2   from t1;
+insert into t1 select a + 4,   b + 4,   c + 4   from t1;
+insert into t1 select a + 8,   b + 8,   c + 8   from t1;
+insert into t1 select a + 16,  b + 16,  c + 16  from t1;
+insert into t1 select a + 32,  b + 32,  c + 32  from t1;
+insert into t1 select a + 64,  b + 64,  c + 64  from t1;
+insert into t1 select a + 128, b + 128, c + 128 from t1;
+insert into t1 select a + 256, b + 256, c + 256 from t1;
+insert into t1 select a + 512, b + 512, c + 512 from t1;
+flush tables;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+select a from t1 where a is null order by a limit 30;
+select b from t1 where b is null order by b limit 30;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TEXT_PK_TABLES1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+
+--echo
+--echo direct_order_limit
+--connection master_1
+TRUNCATE TABLE t1;
+insert into t1 values ('1', '1', '1');
+insert into t1 select a + 1,   b + 1,   c + 1   from t1;
+insert into t1 select a + 2,   b + 2,   c + 2   from t1;
+insert into t1 select a + 4,   b + 4,   c + 4   from t1;
+insert into t1 select a + 8,   b + 8,   c + 8   from t1;
+insert into t1 select a + 16,  b + 16,  c + 16  from t1;
+insert into t1 select a,       b + 32,  c + 32  from t1;
+insert into t1 select a,       b + 64,  c + 64  from t1;
+insert into t1 select a,       b + 128, c + 128 from t1;
+flush tables;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+select a, b, c from t1 where a = '10' and b <> '100' order by c desc limit 5;
+select a, c from t1 where a = '10' order by b desc limit 5;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TEXT_PK_TABLES1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source slave_test_deinit.inc
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/oracle2/t/spider_fixes_part.test b/storage/spider/mysql-test/spider/oracle2/t/spider_fixes_part.test
new file mode 100644
index 00000000..ef5a8026
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/spider_fixes_part.test
@@ -0,0 +1,645 @@
+# This test tests for Spider's bug fixes
+source include/have_log_bin.inc;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--source slave_test_init.inc
+--enable_result_log
+--enable_query_log
+if (!$HAVE_PARTITION)
+{
+  --disable_query_log
+  --disable_result_log
+  --source slave_test_deinit.inc
+  --source test_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tb_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+eval CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+--enable_query_log
+INSERT INTO tb_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+
+--echo
+--echo 2.17
+--echo partition with sort
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1;
+  eval CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_COMMENT2_P_2_1;
+  --enable_query_log
+  INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 WHERE a > 1
+  ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo
+--echo 2.23
+--echo partition update with moving partition
+if ($HAVE_PARTITION)
+{
+  --connection master_1
+  --disable_warnings
+  DROP TABLE IF EXISTS ta_l2;
+  --enable_warnings
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1;
+  eval CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_COMMENT2_P_2_1;
+  --enable_query_log
+  INSERT INTO ta_l2 (a, b, c) VALUES (3, 'B', '2010-09-26 00:00:00');
+  UPDATE ta_l2 SET a = 4 WHERE a = 3;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%update %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%delete %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%update %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%delete %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo index merge with partition
+if ($HAVE_PARTITION)
+{
+  --connection master_1
+  --disable_warnings
+  DROP TABLE IF EXISTS ta_l_int;
+  --enable_warnings
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_result_log
+    }
+    --disable_query_log
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      echo CHILD2_2_DROP_TABLES5;
+      echo CHILD2_2_CREATE_TABLES5;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES5;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES5;
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      echo CHILD2_1_DROP_TABLES5;
+      echo CHILD2_1_CREATE_TABLES5;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES5;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES5;
+    --enable_query_log
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l_int (
+    a INT AUTO_INCREMENT,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    PRIMARY KEY(a),
+    KEY idx1(b),
+    KEY idx2(c)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT3_P_2_1;
+  eval CREATE TABLE ta_l_int (
+    a INT AUTO_INCREMENT,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    PRIMARY KEY(a),
+    KEY idx1(b),
+    KEY idx2(c)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT3_P_2_1;
+  --enable_query_log
+  INSERT INTO ta_l_int (a, b, c) VALUES (1, 2, 3);
+  INSERT INTO ta_l_int (a, b, c) SELECT a + 1, b + 1, c + 1 FROM ta_l_int;
+  INSERT INTO ta_l_int (a, b, c) SELECT a + 2, b + 2, c + 2 FROM ta_l_int;
+  INSERT INTO ta_l_int (a, b, c) SELECT a + 4, b + 4, c + 4 FROM ta_l_int;
+  INSERT INTO ta_l_int (a, b, c) SELECT a + 8, b + 8, c + 8 FROM ta_l_int;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, c FROM ta_l_int force index(primary, idx1, idx2)
+  WHERE a = 5 OR b = 5 OR c = 5 ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+
+--echo
+--echo 2.26
+--echo auto_increment with partition
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_INCREMENT_TABLES1;
+      echo CHILD2_1_CREATE_INCREMENT_TABLES1;
+      echo CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+      echo CHILD2_1_AUTO_INCREMENT_OFFSET2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_INCREMENT_TABLES1;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_INCREMENT_TABLES1;
+    eval $CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+    eval $CHILD2_1_AUTO_INCREMENT_OFFSET2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_INCREMENT_TABLES1;
+      echo CHILD2_2_CREATE_INCREMENT_TABLES1;
+      echo CHILD2_2_AUTO_INCREMENT_INCREMENT2;
+      echo CHILD2_2_AUTO_INCREMENT_OFFSET2;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_INCREMENT_TABLES1;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_INCREMENT_TABLES1;
+    eval $CHILD2_2_AUTO_INCREMENT_INCREMENT2;
+    eval $CHILD2_2_AUTO_INCREMENT_OFFSET2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  if ($USE_REPLICATION)
+  {
+    save_master_pos;
+    --connection slave1_1
+    sync_with_master;
+    --connection master_1
+    --disable_query_log
+    SET SESSION sql_log_bin= 0;
+    --enable_query_log
+  }
+  --disable_warnings
+  DROP TABLE IF EXISTS t1;
+  --enable_warnings
+  --disable_query_log
+  echo CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_P_1;
+  echo MASTER_1_AUTO_INCREMENT_INCREMENT2;
+  echo MASTER_1_AUTO_INCREMENT_OFFSET2;
+  eval CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_INCREMENT1_P_1;
+  eval $MASTER_1_AUTO_INCREMENT_INCREMENT2;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET2;
+  if ($USE_REPLICATION)
+  {
+    SET SESSION sql_log_bin= 1;
+    --connection slave1_1
+    --disable_warnings
+    DROP TABLE IF EXISTS t1;
+    --enable_warnings
+    echo CREATE TABLE t1 (
+      id int(11) NOT NULL AUTO_INCREMENT,
+      PRIMARY KEY (id)
+    ) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_P_1;
+    eval CREATE TABLE t1 (
+      id int(11) NOT NULL AUTO_INCREMENT,
+      PRIMARY KEY (id)
+    ) $SLAVE1_1_ENGINE $SLAVE1_1_CHARSET $SLAVE1_1_COMMENT_INCREMENT1_P_1;
+    --connection master_1
+  }
+  --enable_query_log
+  INSERT INTO t1 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t1 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t1 (id) VALUES (null);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t1 (id) VALUES (null);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t1 () VALUES (),(),(),();
+  SELECT LAST_INSERT_ID();
+  SELECT id FROM t1 ORDER BY id;
+  SET INSERT_ID=5000;
+  INSERT INTO t1 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t1 (id) VALUES (10000);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t1 (id) VALUES (1000);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  if ($USE_REPLICATION)
+  {
+    save_master_pos;
+    --connection slave1_1
+    sync_with_master;
+    SELECT id FROM t1 ORDER BY id;
+    --connection master_1
+    --disable_query_log
+    SET SESSION sql_log_bin= 0;
+    --enable_query_log
+  }
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_1_SELECT_INCREMENT_TABLES1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+      echo CHILD2_1_AUTO_INCREMENT_OFFSET1;
+    }
+    eval $CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+    eval $CHILD2_1_AUTO_INCREMENT_OFFSET1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_2_SELECT_INCREMENT_TABLES1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_AUTO_INCREMENT_INCREMENT1;
+      echo CHILD2_2_AUTO_INCREMENT_OFFSET1;
+    }
+    eval $CHILD2_2_AUTO_INCREMENT_INCREMENT1;
+    eval $CHILD2_2_AUTO_INCREMENT_OFFSET1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source slave_test_deinit.inc
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/oracle2/t/test_deinit.inc b/storage/spider/mysql-test/spider/oracle2/t/test_deinit.inc
new file mode 100644
index 00000000..989bde26
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/test_deinit.inc
@@ -0,0 +1,37 @@
+# get connection and exist engine test
+--echo for master_1
+--connection master_1
+--source ../include/deinit_master_1.inc
+--disconnect master_1
+--echo for child2
+if ($USE_CHILD_GROUP2)
+{
+  --echo child2_1
+  --connection child2_1
+  --source ../include/deinit_child2_1.inc
+  --disconnect child2_1
+  --echo child2_2
+  --connection child2_2
+  --source ../include/deinit_child2_2.inc
+  --disconnect child2_2
+  --echo child2_3
+  --connection child2_3
+  --source ../include/deinit_child2_3.inc
+  --disconnect child2_3
+}
+--echo for child3
+if ($USE_CHILD_GROUP3)
+{
+  --echo child3_1
+  --connection child3_1
+  --source ../include/deinit_child3_1.inc
+  --disconnect child3_1
+  --echo child3_2
+  --connection child3_2
+  --source ../include/deinit_child3_2.inc
+  --disconnect child3_2
+  --echo child3_3
+  --connection child3_3
+  --source ../include/deinit_child3_3.inc
+  --disconnect child3_3
+}
diff --git a/storage/spider/mysql-test/spider/oracle2/t/test_init.inc b/storage/spider/mysql-test/spider/oracle2/t/test_init.inc
new file mode 100644
index 00000000..f2cd6c02
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/test_init.inc
@@ -0,0 +1,74 @@
+# get connection and exist engine test
+--echo for master_1
+--source connect_master_1.inc
+--connection master_1
+CALL mtr.add_suppression("unknown variable");
+SET SESSION sql_log_bin= 0;
+--let $MASTER_1_SERVER_ID=`SELECT @@global.server_id`
+--let $TEST_ENGINE_TYPE= $MASTER_1_ENGINE_TYPE
+--source have_partition.inc
+--source have_trigger.inc
+--source ../include/init_master_1.inc
+--source have_engine.inc
+--echo for child2
+if ($USE_CHILD_GROUP2)
+{
+  --echo child2_1
+  --source connect_child2_1.inc
+  --connection child2_1
+  CALL mtr.add_suppression("unknown variable *");
+  SET SESSION sql_log_bin= 0;
+  --let $CHILD2_1_SERVER_ID=`SELECT @@global.server_id`
+  --let $TEST_ENGINE_TYPE= $CHILD2_1_ENGINE_TYPE
+  --source ../include/init_child2_1.inc
+  --source have_engine.inc
+  --echo child2_2
+  --source connect_child2_2.inc
+  --connection child2_2
+  CALL mtr.add_suppression("unknown variable *");
+  SET SESSION sql_log_bin= 0;
+  --let $CHILD2_2_SERVER_ID=`SELECT @@global.server_id`
+  --let $TEST_ENGINE_TYPE= $CHILD2_2_ENGINE_TYPE
+  --source ../include/init_child2_2.inc
+  --source have_engine.inc
+  --echo child2_3
+  --source connect_child2_3.inc
+  --connection child2_3
+  CALL mtr.add_suppression("unknown variable *");
+  SET SESSION sql_log_bin= 0;
+  --let $CHILD2_3_SERVER_ID=`SELECT @@global.server_id`
+  --let $TEST_ENGINE_TYPE= $CHILD2_3_ENGINE_TYPE
+  --source ../include/init_child2_3.inc
+  --source have_engine.inc
+}
+--echo for child3
+if ($USE_CHILD_GROUP3)
+{
+  --echo child3_1
+  --source connect_child3_1.inc
+  --connection child3_1
+  CALL mtr.add_suppression("unknown variable *");
+  SET SESSION sql_log_bin= 0;
+  --let $CHILD3_1_SERVER_ID=`SELECT @@global.server_id`
+  --let $TEST_ENGINE_TYPE= $CHILD3_1_ENGINE_TYPE
+  --source ../include/init_child3_1.inc
+  --source have_engine.inc
+  --echo child3_2
+  --source connect_child3_2.inc
+  --connection child3_2
+  CALL mtr.add_suppression("unknown variable *");
+  SET SESSION sql_log_bin= 0;
+  --let $CHILD3_2_SERVER_ID=`SELECT @@global.server_id`
+  --let $TEST_ENGINE_TYPE= $CHILD3_2_ENGINE_TYPE
+  --source ../include/init_child3_2.inc
+  --source have_engine.inc
+  --echo child3_3
+  --source connect_child3_3.inc
+  --connection child3_3
+  CALL mtr.add_suppression("unknown variable *");
+  SET SESSION sql_log_bin= 0;
+  --let $CHILD3_3_SERVER_ID=`SELECT @@global.server_id`
+  --let $TEST_ENGINE_TYPE= $CHILD3_3_ENGINE_TYPE
+  --source ../include/init_child3_3.inc
+  --source have_engine.inc
+}
diff --git a/storage/spider/mysql-test/spider/oracle2/t/vp_fixes.test b/storage/spider/mysql-test/spider/oracle2/t/vp_fixes.test
new file mode 100644
index 00000000..90380227
--- /dev/null
+++ b/storage/spider/mysql-test/spider/oracle2/t/vp_fixes.test
@@ -0,0 +1,335 @@
+# This test tests for VP's bug fixes
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table and insert
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tb_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+eval CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+--enable_query_log
+INSERT INTO tb_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+
+--echo
+--echo 0.9
+--echo create different primary key table
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_result_log
+  }
+  --disable_query_log
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    echo CHILD2_1_DROP_TABLES5;
+    echo CHILD2_1_CREATE_TABLES5;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES5;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES5;
+  --enable_query_log
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_query_log
+echo CREATE TABLE ta_l_int (
+  a INT DEFAULT 10,
+  b INT AUTO_INCREMENT,
+  c INT DEFAULT 11,
+  PRIMARY KEY(b)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1;
+eval CREATE TABLE ta_l_int (
+  a INT DEFAULT 10,
+  b INT AUTO_INCREMENT,
+  c INT DEFAULT 11,
+  PRIMARY KEY(b)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+--enable_query_log
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--let $MASTER_1_IS_VP= `SELECT IF('$MASTER_1_ENGINE_TYPE' = 'VP', 1, 0)`
+if ($MASTER_1_IS_VP)
+{
+  --error 14514
+  INSERT INTO ta_l_int (a, b, c) VALUES (2, NULL, 3);
+}
+if (!$MASTER_1_IS_VP)
+{
+  INSERT INTO ta_l_int (a, b, c) VALUES (2, NULL, 3);
+  --disable_query_log
+  --disable_result_log
+  TRUNCATE TABLE ta_l_int;
+  --enable_query_log
+  --enable_result_log
+}
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES5;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo create un-correspond primary key table
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l_int;
+--enable_warnings
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_result_log
+  }
+  --disable_query_log
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    echo CHILD2_1_DROP_TABLES5;
+    echo CHILD2_1_CREATE_TABLES5;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES5;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES5;
+  --enable_query_log
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_query_log
+echo CREATE TABLE ta_l_int (
+  a INT DEFAULT 10,
+  b INT DEFAULT 12,
+  c INT DEFAULT 11,
+  PRIMARY KEY(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1;
+eval CREATE TABLE ta_l_int (
+  a INT DEFAULT 10,
+  b INT DEFAULT 12,
+  c INT DEFAULT 11,
+  PRIMARY KEY(c)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+--enable_query_log
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+if ($MASTER_1_IS_VP)
+{
+  --error 14514
+  INSERT INTO ta_l_int (a, b, c) VALUES (2, NULL, 3);
+}
+if (!$MASTER_1_IS_VP)
+{
+  INSERT INTO ta_l_int (a, b, c) VALUES (2, NULL, 3);
+  --disable_query_log
+  --disable_result_log
+  TRUNCATE TABLE ta_l_int;
+  --enable_query_log
+  --enable_result_log
+}
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES5;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/r/auto_increment.result b/storage/spider/mysql-test/spider/r/auto_increment.result
new file mode 100644
index 00000000..d968d58e
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/auto_increment.result
@@ -0,0 +1,186 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+connection child2_1;
+SELECT 1;
+1
+1
+
+create table select test
+connection child2_1;
+CHILD2_1_DROP_TABLES
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+DROP TABLE IF EXISTS tbl_a;
+CREATE TABLE tbl_a (
+col_a INT NOT NULL AUTO_INCREMENT,
+col_b VARCHAR(20) DEFAULT 'defg',
+col_c INT NOT NULL DEFAULT 100,
+PRIMARY KEY(col_a)
+) MASTER_1_ENGINE MASTER_1_AUTO_INCREMENT_2_1 MASTER_1_COMMENT_2_1
+SHOW CREATE TABLE tbl_a;
+Table	Create Table
+tbl_a	CREATE TABLE `tbl_a` (
+  `col_a` int(11) NOT NULL AUTO_INCREMENT,
+  `col_b` varchar(20) DEFAULT 'defg',
+  `col_c` int(11) NOT NULL DEFAULT 100,
+  PRIMARY KEY (`col_a`)
+) ENGINE=SPIDER AUTO_INCREMENT=20 DEFAULT CHARSET=latin1 COMMENT='database "auto_test_remote", table "tbl_a", srv "s_2_1", aim "0"'
+INSERT INTO tbl_a () VALUES ();
+INSERT INTO tbl_a () VALUES ();
+SHOW CREATE TABLE tbl_a;
+Table	Create Table
+tbl_a	CREATE TABLE `tbl_a` (
+  `col_a` int(11) NOT NULL AUTO_INCREMENT,
+  `col_b` varchar(20) DEFAULT 'defg',
+  `col_c` int(11) NOT NULL DEFAULT 100,
+  PRIMARY KEY (`col_a`)
+) ENGINE=SPIDER DEFAULT CHARSET=latin1 COMMENT='database "auto_test_remote", table "tbl_a", srv "s_2_1", aim "0"'
+ALTER TABLE tbl_a MODIFY col_c MEDIUMINT NOT NULL DEFAULT 100;
+SHOW CREATE TABLE tbl_a;
+Table	Create Table
+tbl_a	CREATE TABLE `tbl_a` (
+  `col_a` int(11) NOT NULL AUTO_INCREMENT,
+  `col_b` varchar(20) DEFAULT 'defg',
+  `col_c` mediumint(9) NOT NULL DEFAULT 100,
+  PRIMARY KEY (`col_a`)
+) ENGINE=SPIDER AUTO_INCREMENT=20 DEFAULT CHARSET=latin1 COMMENT='database "auto_test_remote", table "tbl_a", srv "s_2_1", aim "0"'
+RENAME TABLE tbl_a TO tbl_x;
+SHOW CREATE TABLE tbl_x;
+Table	Create Table
+tbl_x	CREATE TABLE `tbl_x` (
+  `col_a` int(11) NOT NULL AUTO_INCREMENT,
+  `col_b` varchar(20) DEFAULT 'defg',
+  `col_c` mediumint(9) NOT NULL DEFAULT 100,
+  PRIMARY KEY (`col_a`)
+) ENGINE=SPIDER AUTO_INCREMENT=20 DEFAULT CHARSET=latin1 COMMENT='database "auto_test_remote", table "tbl_a", srv "s_2_1", aim "0"'
+RENAME TABLE tbl_x TO tbl_a;
+SHOW CREATE TABLE tbl_a;
+Table	Create Table
+tbl_a	CREATE TABLE `tbl_a` (
+  `col_a` int(11) NOT NULL AUTO_INCREMENT,
+  `col_b` varchar(20) DEFAULT 'defg',
+  `col_c` mediumint(9) NOT NULL DEFAULT 100,
+  PRIMARY KEY (`col_a`)
+) ENGINE=SPIDER AUTO_INCREMENT=20 DEFAULT CHARSET=latin1 COMMENT='database "auto_test_remote", table "tbl_a", srv "s_2_1", aim "0"'
+INSERT INTO tbl_a () VALUES ();
+INSERT INTO tbl_a () VALUES ();
+SHOW CREATE TABLE tbl_a;
+Table	Create Table
+tbl_a	CREATE TABLE `tbl_a` (
+  `col_a` int(11) NOT NULL AUTO_INCREMENT,
+  `col_b` varchar(20) DEFAULT 'defg',
+  `col_c` mediumint(9) NOT NULL DEFAULT 100,
+  PRIMARY KEY (`col_a`)
+) ENGINE=SPIDER AUTO_INCREMENT=3 DEFAULT CHARSET=latin1 COMMENT='database "auto_test_remote", table "tbl_a", srv "s_2_1", aim "0"'
+MASTER_1_AUTO_INCREMENT1
+SHOW CREATE TABLE tbl_a;
+Table	Create Table
+tbl_a	CREATE TABLE `tbl_a` (
+  `col_a` int(11) NOT NULL AUTO_INCREMENT,
+  `col_b` varchar(20) DEFAULT 'defg',
+  `col_c` mediumint(9) NOT NULL DEFAULT 100,
+  PRIMARY KEY (`col_a`)
+) ENGINE=SPIDER AUTO_INCREMENT=30 DEFAULT CHARSET=latin1 COMMENT='database "auto_test_remote", table "tbl_a", srv "s_2_1", aim "0"'
+INSERT INTO tbl_a () VALUES ();
+INSERT INTO tbl_a () VALUES ();
+SHOW CREATE TABLE tbl_a;
+Table	Create Table
+tbl_a	CREATE TABLE `tbl_a` (
+  `col_a` int(11) NOT NULL AUTO_INCREMENT,
+  `col_b` varchar(20) DEFAULT 'defg',
+  `col_c` mediumint(9) NOT NULL DEFAULT 100,
+  PRIMARY KEY (`col_a`)
+) ENGINE=SPIDER AUTO_INCREMENT=5 DEFAULT CHARSET=latin1 COMMENT='database "auto_test_remote", table "tbl_a", srv "s_2_1", aim "0"'
+MASTER_1_AUTO_INCREMENT2
+SHOW CREATE TABLE tbl_a;
+Table	Create Table
+tbl_a	CREATE TABLE `tbl_a` (
+  `col_a` int(11) NOT NULL AUTO_INCREMENT,
+  `col_b` varchar(20) DEFAULT 'defg',
+  `col_c` mediumint(9) NOT NULL DEFAULT 100,
+  PRIMARY KEY (`col_a`)
+) ENGINE=SPIDER AUTO_INCREMENT=20 DEFAULT CHARSET=latin1 COMMENT='database "auto_test_remote", table "tbl_a", srv "s_2_1", aim "0"'
+INSERT INTO tbl_a () VALUES ();
+INSERT INTO tbl_a () VALUES ();
+SHOW CREATE TABLE tbl_a;
+Table	Create Table
+tbl_a	CREATE TABLE `tbl_a` (
+  `col_a` int(11) NOT NULL AUTO_INCREMENT,
+  `col_b` varchar(20) DEFAULT 'defg',
+  `col_c` mediumint(9) NOT NULL DEFAULT 100,
+  PRIMARY KEY (`col_a`)
+) ENGINE=SPIDER AUTO_INCREMENT=7 DEFAULT CHARSET=latin1 COMMENT='database "auto_test_remote", table "tbl_a", srv "s_2_1", aim "0"'
+
+select test
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT * FROM tbl_a;
+col_a	col_b	col_c
+1	def	10
+2	def	10
+3	def	10
+4	def	10
+5	def	10
+6	def	10
+7	def	10
+8	def	10
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select t0.`col_a` `col_a`,t0.`col_b` `col_b`,t0.`col_c` `col_c` from `auto_test_remote`.`tbl_a` t0
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT col_a, col_b, col_c FROM tbl_a ORDER BY col_a;
+col_a	col_b	col_c
+1	def	10
+2	def	10
+3	def	10
+4	def	10
+5	def	10
+6	def	10
+7	def	10
+8	def	10
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/basic_sql.result b/storage/spider/mysql-test/spider/r/basic_sql.result
new file mode 100644
index 00000000..2443f348
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/basic_sql.result
@@ -0,0 +1,748 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+
+create table select test
+connection master_1;
+DROP TABLE IF EXISTS tb_l;
+CREATE TABLE tb_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+INSERT INTO tb_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+SELECT a, b, c FROM tb_l
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+create table ignore select test
+connection master_1;
+DROP TABLE IF EXISTS ta_l;
+DROP TABLE IF EXISTS tb_l;
+CREATE TABLE tb_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+INSERT INTO tb_l (a, b, c) VALUES
+(1, 'f', '2008-07-01 10:21:39'),
+(2, 'g', '2000-02-01 00:00:00'),
+(3, 'j', '2007-05-04 20:03:11'),
+(4, 'i', '2003-10-30 05:01:03'),
+(5, 'h', '2001-10-31 23:59:59');
+CREATE TABLE ta_l (
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+IGNORE SELECT a, b, c FROM tb_l
+Warnings:
+Warning	1062	Duplicate entry '1' for key 'PRIMARY'
+Warning	1062	Duplicate entry '2' for key 'PRIMARY'
+Warning	1062	Duplicate entry '3' for key 'PRIMARY'
+Warning	1062	Duplicate entry '4' for key 'PRIMARY'
+Warning	1062	Duplicate entry '5' for key 'PRIMARY'
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+create table ignore select test
+connection master_1;
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+REPLACE SELECT a, b, c FROM tb_l
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+create no index table
+connection master_1;
+DROP TABLE IF EXISTS ta_l_no_idx;
+CREATE TABLE ta_l_no_idx
+MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT2_2_1
+SELECT a, b, c FROM tb_l
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l_no_idx ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select table
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select table shared mode
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a
+LOCK IN SHARE MODE;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select table for update
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a
+FOR UPDATE;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select table join
+connection master_1;
+SELECT a.a, a.b, date_format(b.c, '%Y-%m-%d %H:%i:%s') FROM ta_l a, tb_l b
+WHERE a.a = b.a ORDER BY a.a;
+a	b	date_format(b.c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select table straight_join
+connection master_1;
+SELECT STRAIGHT_JOIN a.a, a.b, date_format(b.c, '%Y-%m-%d %H:%i:%s')
+FROM ta_l a, tb_l b WHERE a.a = b.a ORDER BY a.a;
+a	b	date_format(b.c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select sql_small_result
+connection master_1;
+SELECT SQL_SMALL_RESULT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select sql_big_result
+connection master_1;
+SELECT SQL_BIG_RESULT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select sql_buffer_result
+connection master_1;
+SELECT SQL_BUFFER_RESULT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select sql_cache
+connection master_1;
+SELECT SQL_CACHE a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select sql_no_cache
+connection master_1;
+SELECT SQL_NO_CACHE a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select sql_calc_found_rows
+connection master_1;
+SELECT SQL_CALC_FOUND_ROWS a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a LIMIT 4;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+connection master_1;
+SELECT found_rows();
+found_rows()
+5
+
+select high_priority
+connection master_1;
+SELECT HIGH_PRIORITY a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select distinct
+connection master_1;
+SELECT DISTINCT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select count
+connection master_1;
+SELECT count(*) FROM ta_l ORDER BY a;
+count(*)
+5
+
+select table join not use index
+connection master_1;
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM tb_l a WHERE
+EXISTS (SELECT * FROM ta_l b WHERE b.b = a.b) ORDER BY a.a;
+a	b	date_format(a.c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select using pushdown
+connection master_1;
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l a WHERE
+a.b = 'g' ORDER BY a.a;
+a	b	date_format(a.c, '%Y-%m-%d %H:%i:%s')
+2	g	2000-02-01 00:00:00
+
+select using index and pushdown
+connection master_1;
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l a WHERE
+a.a > 0 AND a.b = 'g' ORDER BY a.a;
+a	b	date_format(a.c, '%Y-%m-%d %H:%i:%s')
+2	g	2000-02-01 00:00:00
+
+insert
+connection master_1;
+TRUNCATE TABLE ta_l;
+connection master_1;
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59');
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	e	2008-01-01 23:59:59
+
+insert select
+connection master_1;
+TRUNCATE TABLE ta_l;
+connection master_1;
+INSERT INTO ta_l (a, b, c) SELECT a, b, c FROM tb_l;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+insert select a
+connection master_1;
+TRUNCATE TABLE ta_l;
+connection master_1;
+INSERT INTO ta_l (a, b, c) VALUES ((SELECT a FROM tb_l ORDER BY a LIMIT 1),
+'e', '2008-01-01 23:59:59');
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+
+insert low_priority
+connection master_1;
+TRUNCATE TABLE ta_l;
+connection master_1;
+INSERT LOW_PRIORITY INTO ta_l (a, b, c) values (2, 'e', '2008-01-01 23:59:59');
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	e	2008-01-01 23:59:59
+
+insert high_priority
+connection master_1;
+TRUNCATE TABLE ta_l;
+connection master_1;
+INSERT HIGH_PRIORITY INTO ta_l (a, b, c) VALUES (2, 'e',
+'2008-01-01 23:59:59');
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	e	2008-01-01 23:59:59
+
+insert ignore
+connection master_1;
+INSERT IGNORE INTO ta_l (a, b, c) VALUES (2, 'd', '2009-02-02 01:01:01');
+Warnings:
+Warning	1062	Duplicate entry '2' for key 'PRIMARY'
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	e	2008-01-01 23:59:59
+
+insert update (insert)
+connection master_1;
+TRUNCATE TABLE ta_l;
+connection master_1;
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59') ON DUPLICATE
+KEY UPDATE b = 'f', c = '2005-08-08 11:11:11';
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	e	2008-01-01 23:59:59
+
+insert update (update)
+connection master_1;
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59') ON DUPLICATE
+KEY UPDATE b = 'f', c = '2005-08-08 11:11:11';
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	f	2005-08-08 11:11:11
+
+replace
+connection master_1;
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59');
+connection master_1;
+REPLACE INTO ta_l (a, b, c) VALUES (2, 'f', '2008-02-02 02:02:02');
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	f	2008-02-02 02:02:02
+
+replace select
+connection master_1;
+REPLACE INTO ta_l (a, b, c) SELECT a, b, c FROM tb_l;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+replace select a
+connection master_1;
+REPLACE INTO ta_l (a, b, c) VALUES ((SELECT a FROM tb_l ORDER BY a LIMIT 1),
+'e', '2008-01-01 23:59:59');
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+replace low_priority
+connection master_1;
+REPLACE LOW_PRIORITY INTO ta_l (a, b, c) VALUES (3, 'g',
+'2009-03-03 03:03:03');
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+2	g	2000-02-01 00:00:00
+3	g	2009-03-03 03:03:03
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+update
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59');
+connection master_1;
+UPDATE ta_l SET b = 'f', c = '2008-02-02 02:02:02' WHERE a = 2;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+2	f	2008-02-02 02:02:02
+
+update select
+connection master_1;
+UPDATE ta_l SET b = 'g', c = '2009-03-03 03:03:03' WHERE a IN (SELECT a FROM
+tb_l);
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	g	2009-03-03 03:03:03
+2	g	2009-03-03 03:03:03
+
+update select a
+connection master_1;
+UPDATE ta_l SET b = 'h', c = '2010-04-04 04:04:04' WHERE a = (SELECT a FROM
+tb_l ORDER BY a LIMIT 1);
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	h	2010-04-04 04:04:04
+2	g	2009-03-03 03:03:03
+
+update join
+connection master_1;
+UPDATE ta_l a, tb_l b SET a.b = b.b, a.c = b.c WHERE a.a = b.a;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+
+update join a
+connection master_1;
+UPDATE ta_l a, tb_l b SET a.b = 'g', a.c = '2009-03-03 03:03:03' WHERE
+a.a = b.a;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	g	2009-03-03 03:03:03
+2	g	2009-03-03 03:03:03
+
+update low_priority
+connection master_1;
+UPDATE LOW_PRIORITY ta_l SET b = 'f', c = '2008-02-02 02:02:02' WHERE a = 2;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	g	2009-03-03 03:03:03
+2	f	2008-02-02 02:02:02
+
+update ignore
+connection master_1;
+UPDATE IGNORE ta_l SET a = 1, b = 'g', c = '2009-03-03 03:03:03' WHERE a = 2;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	g	2009-03-03 03:03:03
+2	f	2008-02-02 02:02:02
+
+update pushdown
+connection master_1;
+update ta_l set b = 'j', c = '2009-03-03 03:03:03' where b = 'f';
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	g	2009-03-03 03:03:03
+2	j	2009-03-03 03:03:03
+
+update index pushdown
+connection master_1;
+UPDATE ta_l SET b = 'g', c = '2009-03-03 03:03:03' WHERE a > 0 AND b = 'j';
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	g	2009-03-03 03:03:03
+2	g	2009-03-03 03:03:03
+
+delete
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+connection master_1;
+DELETE FROM ta_l WHERE a = 2;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+3	e	2008-01-01 23:59:59
+4	e	2008-01-01 23:59:59
+5	e	2008-01-01 23:59:59
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete all
+connection master_1;
+DELETE FROM ta_l;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+
+delete select
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+connection master_1;
+DELETE FROM ta_l WHERE a IN (SELECT a FROM tb_l);
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete select a
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+connection master_1;
+DELETE FROM ta_l WHERE a = (SELECT a FROM tb_l ORDER BY a LIMIT 1);
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	e	2008-01-01 23:59:59
+3	e	2008-01-01 23:59:59
+4	e	2008-01-01 23:59:59
+5	e	2008-01-01 23:59:59
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete join
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+connection master_1;
+DELETE a FROM ta_l a, (SELECT a FROM tb_l ORDER BY a) b WHERE a.a = b.a;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete low_priority
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+connection master_1;
+DELETE LOW_PRIORITY FROM ta_l WHERE a = 2;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+3	e	2008-01-01 23:59:59
+4	e	2008-01-01 23:59:59
+5	e	2008-01-01 23:59:59
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete ignore
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+connection master_1;
+DELETE IGNORE FROM ta_l WHERE a = 2;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+3	e	2008-01-01 23:59:59
+4	e	2008-01-01 23:59:59
+5	e	2008-01-01 23:59:59
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete quick
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+connection master_1;
+DELETE QUICK FROM ta_l WHERE a = 2;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	e	2008-01-01 23:59:59
+3	e	2008-01-01 23:59:59
+4	e	2008-01-01 23:59:59
+5	e	2008-01-01 23:59:59
+6	e	2008-01-01 23:59:59
+7	e	2008-01-01 23:59:59
+8	e	2008-01-01 23:59:59
+9	e	2008-01-01 23:59:59
+10	j	2008-01-01 23:59:59
+
+delete pushdown
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+connection master_1;
+DELETE FROM ta_l WHERE b = 'e';
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+10	j	2008-01-01 23:59:59
+
+delete index pushdown
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+connection master_1;
+DELETE FROM ta_l WHERE a > 0 AND b = 'e';
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+10	j	2008-01-01 23:59:59
+
+truncate
+connection master_1;
+TRUNCATE TABLE ta_l;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+connection master_1;
+create table t2345678911234567892123456789312345678941234567895123234234(id int) ENGINE=SPIDER
+COMMENT='host "192.168.21.1", user "spider", password "password", database "test32738123123123"';
+drop table t2345678911234567892123456789312345678941234567895123234234;
+#
+# MDEV-26139 Spider crashes with segmentation fault (signal 11) on CREATE TABLE when COMMENT does not contain embedded double quotes
+#
+create table mdev_26139 (id int) ENGINE=SPIDER
+COMMENT="host '192.168.21.1', user 'spider', password 'password', database 'test'";
+drop table mdev_26139;
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/basic_sql_part.result b/storage/spider/mysql-test/spider/r/basic_sql_part.result
new file mode 100644
index 00000000..0f402940
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/basic_sql_part.result
@@ -0,0 +1,141 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+connection master_1;
+DROP TABLE IF EXISTS tb_l;
+CREATE TABLE tb_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+INSERT INTO tb_l (a, b, c) VALUES
+(1, 'f', '2008-07-01 10:21:39'),
+(2, 'g', '2000-02-01 00:00:00'),
+(3, 'j', '2007-05-04 20:03:11'),
+(4, 'i', '2003-10-30 05:01:03'),
+(5, 'h', '2001-10-31 23:59:59');
+
+create table with partition and select test
+connection master_1;
+CREATE TABLE ta_l2 (
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_COMMENT_P_2_1
+SELECT a, b, c FROM tb_l
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+select partition using pushdown
+connection master_1;
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 a WHERE
+a.b = 'g' ORDER BY a.a;
+a	b	date_format(a.c, '%Y-%m-%d %H:%i:%s')
+2	g	2000-02-01 00:00:00
+
+select partition using index pushdown
+connection master_1;
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 a WHERE
+a.a > 0 AND a.b = 'g' ORDER BY a.a;
+a	b	date_format(a.c, '%Y-%m-%d %H:%i:%s')
+2	g	2000-02-01 00:00:00
+
+update partition pushdown
+connection master_1;
+UPDATE ta_l2 SET b = 'e', c = '2009-03-03 03:03:03' WHERE b = 'j';
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	e	2009-03-03 03:03:03
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+update partition index pushdown
+connection master_1;
+UPDATE ta_l2 SET b = 'j', c = '2009-03-03 03:03:03' WHERE a > 0 AND b = 'e';
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+2	g	2000-02-01 00:00:00
+3	j	2009-03-03 03:03:03
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+delete partition pushdown
+TRUNCATE TABLE ta_l2;
+INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+connection master_1;
+DELETE FROM ta_l2 WHERE b = 'g';
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+delete partition index pushdown
+TRUNCATE TABLE ta_l2;
+INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+connection master_1;
+DELETE FROM ta_l2 WHERE a > 0 AND b = 'g';
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	f	2008-07-01 10:21:39
+3	j	2007-05-04 20:03:11
+4	i	2003-10-30 05:01:03
+5	h	2001-10-31 23:59:59
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/checksum_table_with_quick_mode_3.result b/storage/spider/mysql-test/spider/r/checksum_table_with_quick_mode_3.result
new file mode 100644
index 00000000..2fe86099
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/checksum_table_with_quick_mode_3.result
@@ -0,0 +1,104 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+connection master_1;
+set @old_spider_quick_mode= @@spider_quick_mode;
+set session spider_quick_mode= 3;
+set @old_spider_quick_page_size= @@spider_quick_page_size;
+set session spider_quick_page_size= 3;
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_a (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_a (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+FLUSH TABLES;
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CHECKSUM TABLE tbl_a EXTENDED;
+Table	Checksum
+auto_test_local.tbl_a	1061386331
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%checksum %';
+argument
+checksum table `auto_test_remote`.`tbl_a` extended
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%checksum %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_quick_mode= @old_spider_quick_mode;
+set session spider_quick_page_size= @old_spider_quick_page_size;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/direct_aggregate.result b/storage/spider/mysql-test/spider/r/direct_aggregate.result
new file mode 100644
index 00000000..ede48906
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/direct_aggregate.result
@@ -0,0 +1,100 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+
+create table select test
+connection master_1;
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO ta_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+direct_aggregating test
+connection master_1;
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	0
+SELECT COUNT(*) FROM ta_l;
+COUNT(*)
+5
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	0
+SELECT MAX(a) FROM ta_l;
+MAX(a)
+5
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	1
+SELECT MIN(a) FROM ta_l;
+MIN(a)
+1
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	2
+SELECT MAX(a) FROM ta_l WHERE a < 5;
+MAX(a)
+4
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	3
+SELECT MIN(a) FROM ta_l WHERE a > 1;
+MIN(a)
+2
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	4
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/direct_aggregate_part.result b/storage/spider/mysql-test/spider/r/direct_aggregate_part.result
new file mode 100644
index 00000000..02cdc033
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/direct_aggregate_part.result
@@ -0,0 +1,90 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+
+with partition test
+connection master_1;
+CREATE TABLE ta_l2 (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	0
+SELECT COUNT(*) FROM ta_l2;
+COUNT(*)
+5
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	2
+SELECT MAX(a) FROM ta_l2;
+MAX(a)
+5
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	4
+SELECT MIN(a) FROM ta_l2;
+MIN(a)
+1
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	6
+SELECT MAX(a) FROM ta_l2 WHERE a < 5;
+MAX(a)
+4
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	8
+SELECT MIN(a) FROM ta_l2 WHERE a > 1;
+MIN(a)
+2
+SHOW STATUS LIKE 'Spider_direct_aggregate';
+Variable_name	Value
+Spider_direct_aggregate	10
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/direct_join.result b/storage/spider/mysql-test/spider/r/direct_join.result
new file mode 100644
index 00000000..a1018c35
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/direct_join.result
@@ -0,0 +1,197 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+connection child2_1;
+SELECT 1;
+1
+1
+
+create table and insert
+connection child2_1;
+CHILD2_1_DROP_TABLES
+CHILD2_1_DROP_TABLES6
+CHILD2_1_DROP_TABLES5
+CHILD2_1_CREATE_TABLES
+CHILD2_1_CREATE_TABLES6
+CHILD2_1_CREATE_TABLES5
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+DROP TABLE IF EXISTS tbl_a;
+CREATE TABLE tbl_a (
+a INT DEFAULT 10,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10',
+PRIMARY KEY(a),
+KEY idx1(b)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+CREATE TABLE tbl_b (
+a INT DEFAULT 10,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10'
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT5_2_1
+CREATE TABLE tbl_c (
+a INT AUTO_INCREMENT,
+b INT DEFAULT 10,
+c INT DEFAULT 11,
+PRIMARY KEY(a),
+KEY idx1(b),
+KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1
+insert into tbl_a values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04'),(5,'e','2000/01/05');
+insert into tbl_b values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04'),(5,'e','2000/01/05');
+insert into tbl_c values (1,10,100),(2,20,200),(3,30,300),(4,40,400),(5,50,500);
+
+select test
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.a, c.b, c.c FROM tbl_a a, tbl_b b, tbl_c c WHERE a.a = b.a and a.a = c.a ORDER BY a.b DESC LIMIT 1,2;
+a	b	c
+4	40	400
+3	30	300
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select t0.`b` `b`,t0.`a` `a`,t2.`b` `b`,t2.`c` `c` from `auto_test_remote`.`ta_r` t0,`auto_test_remote`.`ta_r_3` t1,`auto_test_remote`.`ta_r_int` t2 where ((t0.`a` = t1.`a`) and (t2.`a` = t1.`a`)) order by t0.`b` desc limit 1,2
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_r ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2000-01-01 00:00:00
+2	b	2000-01-02 00:00:00
+3	c	2000-01-03 00:00:00
+4	d	2000-01-04 00:00:00
+5	e	2000-01-05 00:00:00
+
+Test JOIN on a constant table.
+Spider should NOT push down the join because the tbl_person table
+is optimized as a constant table.
+connection child2_1;
+CHILD2_1_DROP_CONST_TABLE_JOIN
+CHILD2_1_DROP_CONST_TABLE2_JOIN
+CHILD2_1_CREATE_CONST_TABLE_JOIN
+CHILD2_1_CREATE_CONST_TABLE2_JOIN
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+DROP TABLE IF EXISTS tbl_person;
+DROP TABLE IF EXISTS tbl_ncd_cm_person;
+CREATE TABLE tbl_person (
+id VARCHAR(50) NOT NULL,
+hr_status VARCHAR(50) NULL DEFAULT NULL,
+region_code VARCHAR(50) NULL DEFAULT NULL,
+region INT(11) NOT NULL,
+PRIMARY KEY (id, region) USING BTREE
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_CONST_TABLE_JOIN
+MASTER_1_ROW_FORMAT_CONST_TABLE_JOIN MASTER_1_PART_CONST_TABLE_JOIN
+SHOW CREATE TABLE tbl_person
+Table	Create Table
+tbl_person	CREATE TABLE `tbl_person` (
+  `id` varchar(50) NOT NULL,
+  `hr_status` varchar(50) DEFAULT NULL,
+  `region_code` varchar(50) DEFAULT NULL,
+  `region` int(11) NOT NULL,
+  PRIMARY KEY (`id`,`region`) USING BTREE
+) ENGINE=SPIDER DEFAULT CHARSET=utf8 ROW_FORMAT=DYNAMIC COMMENT='table "tbl_ncd_cm_person"'
+ PARTITION BY LIST  COLUMNS(`region`)
+(PARTITION `pt1` VALUES IN (510411) COMMENT = 'tbl "tbl_person", srv "s_2_1"' ENGINE = SPIDER)
+CREATE TABLE tbl_ncd_cm_person (
+id VARCHAR(50) NOT NULL,
+person_id VARCHAR(50) NULL DEFAULT '',
+diseaseKind_id VARCHAR(50) NULL DEFAULT NULL,
+region INT(11) NOT NULL,
+PRIMARY KEY (id, region) USING BTREE
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_CONST_TABLE2_JOIN
+MASTER_1_ROW_FORMAT_CONST_TABLE_JOIN MASTER_1_PART_CONST_TABLE2_JOIN
+SHOW CREATE TABLE tbl_ncd_cm_person
+Table	Create Table
+tbl_ncd_cm_person	CREATE TABLE `tbl_ncd_cm_person` (
+  `id` varchar(50) NOT NULL,
+  `person_id` varchar(50) DEFAULT '',
+  `diseaseKind_id` varchar(50) DEFAULT NULL,
+  `region` int(11) NOT NULL,
+  PRIMARY KEY (`id`,`region`) USING BTREE
+) ENGINE=SPIDER DEFAULT CHARSET=utf8 ROW_FORMAT=DYNAMIC
+ PARTITION BY LIST  COLUMNS(`region`)
+(PARTITION `pt1` VALUES IN (510411) COMMENT = 'tbl "tbl_ncd_cm_person", srv "s_2_1"' ENGINE = SPIDER)
+INSERT INTO tbl_person VALUES ('24FC3F0A5119432BAE13DD65AABAA39C',
+'1', '123-51041110620301-321', 510411);
+INSERT INTO tbl_person VALUES ('123456789012345678901234567890AB',
+'1', '123-51041110620301-321', 510411);
+INSERT INTO tbl_ncd_cm_person VALUES ('123456789',
+'24FC3F0A5119432BAE13DD65AABAA39C',
+'52A0328740914BCE86ED10A4D2521816',
+510411);
+INSERT INTO tbl_ncd_cm_person VALUES ('123456789AB',
+'123456789012345678901234567890AB',
+'52A0328740914BCE86ED10A4D2521816',
+510411);
+DELETE FROM tbl_ncd_cm_person;
+INSERT INTO tbl_ncd_cm_person VALUES ('123456789',
+'24FC3F0A5119432BAE13DD65AABAA39C',
+'52A0328740914BCE86ED10A4D2521816',
+510411);
+INSERT INTO tbl_ncd_cm_person VALUES ('123456789AB',
+'123456789012345678901234567890AB',
+'52A0328740914BCE86ED10A4D2521816',
+510411);
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT count(0) FROM tbl_person tp INNER JOIN tbl_ncd_cm_person tncp ON tp.id = tncp.person_id WHERE 1 = 1 AND tp.hr_status != "99" AND tp.hr_status != "2" AND tp.region_code LIKE CONCAT(CONCAT('%', '51041110620301', '%')) AND tp.id = '24FC3F0A5119432BAE13DD65AABAA39C' AND tncp.diseaseKind_id = '52A0328740914BCE86ED10A4D2521816' AND tp.region = 510411;
+count(0)
+1
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `id`,`hr_status`,`region_code`,`region` from `auto_test_remote`.`tbl_person` where `id` = '24FC3F0A5119432BAE13DD65AABAA39C' and `region` = 510411
+select count(0) `count(0)` from `auto_test_remote`.`tbl_ncd_cm_person` t0 where ((t0.`person_id` = '24FC3F0A5119432BAE13DD65AABAA39C') and (t0.`diseaseKind_id` = '52A0328740914BCE86ED10A4D2521816'))
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT * FROM tbl_person;
+id	hr_status	region_code	region
+123456789012345678901234567890AB	1	123-51041110620301-321	510411
+24FC3F0A5119432BAE13DD65AABAA39C	1	123-51041110620301-321	510411
+SELECT * FROM tbl_ncd_cm_person;
+id	person_id	diseaseKind_id	region
+123456789	24FC3F0A5119432BAE13DD65AABAA39C	52A0328740914BCE86ED10A4D2521816	510411
+123456789AB	123456789012345678901234567890AB	52A0328740914BCE86ED10A4D2521816	510411
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/direct_join_using.result b/storage/spider/mysql-test/spider/r/direct_join_using.result
new file mode 100644
index 00000000..66ae1503
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/direct_join_using.result
@@ -0,0 +1,108 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+connection child2_1;
+SELECT 1;
+1
+1
+
+create table and insert
+connection child2_1;
+CHILD2_1_DROP_TABLES
+CHILD2_1_DROP_TABLES6
+CHILD2_1_DROP_TABLES5
+CHILD2_1_CREATE_TABLES
+CHILD2_1_CREATE_TABLES6
+CHILD2_1_CREATE_TABLES5
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+DROP TABLE IF EXISTS tbl_a;
+CREATE TABLE tbl_a (
+a INT DEFAULT 10,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10',
+PRIMARY KEY(a),
+KEY idx1(b)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+CREATE TABLE tbl_b (
+a INT DEFAULT 10,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10'
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT5_2_1
+CREATE TABLE tbl_c (
+a INT AUTO_INCREMENT,
+b INT DEFAULT 10,
+c INT DEFAULT 11,
+PRIMARY KEY(a),
+KEY idx1(b),
+KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1
+insert into tbl_a values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04'),(5,'e','2000/01/05');
+insert into tbl_b values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04'),(5,'e','2000/01/05');
+insert into tbl_c values (1,10,100),(2,20,200),(3,30,300),(4,40,400),(5,50,500);
+
+select test
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.a, c.b, c.c FROM tbl_a a join tbl_b b using(a) join tbl_c c using(a) ORDER BY a.b DESC;
+a	b	c
+5	50	500
+4	40	400
+3	30	300
+2	20	200
+1	10	100
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select t0.`b` `b`,t0.`a` `a`,t2.`b` `b`,t2.`c` `c` from `auto_test_remote`.`ta_r` t0,`auto_test_remote`.`ta_r_3` t1,`auto_test_remote`.`ta_r_int` t2 where ((t0.`a` = t1.`a`) and (t2.`a` = t1.`a`)) order by t0.`b` desc
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_r ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2000-01-01 00:00:00
+2	b	2000-01-02 00:00:00
+3	c	2000-01-03 00:00:00
+4	d	2000-01-04 00:00:00
+5	e	2000-01-05 00:00:00
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/direct_left_join.result b/storage/spider/mysql-test/spider/r/direct_left_join.result
new file mode 100644
index 00000000..b63f0661
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/direct_left_join.result
@@ -0,0 +1,108 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+connection child2_1;
+SELECT 1;
+1
+1
+
+create table and insert
+connection child2_1;
+CHILD2_1_DROP_TABLES
+CHILD2_1_DROP_TABLES6
+CHILD2_1_DROP_TABLES5
+CHILD2_1_CREATE_TABLES
+CHILD2_1_CREATE_TABLES6
+CHILD2_1_CREATE_TABLES5
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+DROP TABLE IF EXISTS tbl_a;
+CREATE TABLE tbl_a (
+a INT DEFAULT 10,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10',
+PRIMARY KEY(a),
+KEY idx1(b)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+CREATE TABLE tbl_b (
+a INT DEFAULT 10,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10'
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT5_2_1
+CREATE TABLE tbl_c (
+a INT AUTO_INCREMENT,
+b INT DEFAULT 10,
+c INT DEFAULT 11,
+PRIMARY KEY(a),
+KEY idx1(b),
+KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1
+insert into tbl_a values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04'),(5,'e','2000/01/05');
+insert into tbl_b values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04'),(5,'e','2000/01/05');
+insert into tbl_c values (1,10,100),(2,20,200),(3,30,300),(4,40,400),(5,50,500);
+
+select test
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.a, c.b, c.c FROM tbl_a a left join tbl_b b on a.a = b.a left join tbl_c c on a.a = c.a ORDER BY a.b DESC;
+a	b	c
+5	50	500
+4	40	400
+3	30	300
+2	20	200
+1	10	100
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select t0.`b` `b`,t0.`a` `a`,t2.`b` `b`,t2.`c` `c` from `auto_test_remote`.`ta_r` t0 left join `auto_test_remote`.`ta_r_3` t1 on (t1.`a` = t0.`a`) left join `auto_test_remote`.`ta_r_int` t2 on (t2.`a` = t0.`a`) where 1 order by t0.`b` desc
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_r ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2000-01-01 00:00:00
+2	b	2000-01-02 00:00:00
+3	c	2000-01-03 00:00:00
+4	d	2000-01-04 00:00:00
+5	e	2000-01-05 00:00:00
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/direct_left_join_nullable.result b/storage/spider/mysql-test/spider/r/direct_left_join_nullable.result
new file mode 100644
index 00000000..194a6b31
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/direct_left_join_nullable.result
@@ -0,0 +1,113 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+connection child2_1;
+SELECT 1;
+1
+1
+
+create table and insert
+connection child2_1;
+CHILD2_1_DROP_TABLES
+CHILD2_1_DROP_TABLES6
+CHILD2_1_DROP_TABLES4
+CHILD2_1_DROP_TABLES3
+CHILD2_1_CREATE_TABLES
+CHILD2_1_CREATE_TABLES6
+CHILD2_1_CREATE_TABLES4
+CHILD2_1_CREATE_TABLES3
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+DROP TABLE IF EXISTS tbl_a;
+CREATE TABLE tbl_a (
+a INT DEFAULT 10,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10',
+KEY idx0(a),
+KEY idx1(b)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+CREATE TABLE tbl_b (
+a INT DEFAULT 10,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10'
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT5_2_1
+CREATE TABLE tbl_c (
+a INT AUTO_INCREMENT,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10',
+KEY idx0(a),
+KEY idx1(b),
+KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT3_2_1
+CREATE TABLE tbl_d (
+a INT DEFAULT 10,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10'
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT2_2_1
+insert into tbl_a values (1,'a','2000/01/01'),(2,'b','2000/01/02');
+insert into tbl_b values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03');
+insert into tbl_c values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04');
+insert into tbl_d values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04'),(5,'e','2000/01/05');
+
+select test
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.a, c.b, c.c, d.a FROM tbl_d a left join tbl_c b on a.a = b.a left join tbl_b c on b.c = c.c left join tbl_a d on c.b = d.b ORDER BY a.a DESC;
+a	b	c	a
+5	NULL	NULL	NULL
+4	NULL	NULL	NULL
+3	c	2000-01-03 00:00:00	NULL
+2	b	2000-01-02 00:00:00	2
+1	a	2000-01-01 00:00:00	1
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select t0.`a` `a`,t2.`b` `b`,t2.`c` `c`,t3.`a` `a` from `auto_test_remote`.`ta_r_no_idx` t0 left join `auto_test_remote`.`ta_r_auto_inc` t1 on (t1.`a` = t0.`a`) left join `auto_test_remote`.`ta_r_3` t2 on (t2.`c` = t1.`c`) left join `auto_test_remote`.`ta_r` t3 on (t3.`b` = t2.`b`) where 1 order by t0.`a` desc
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_r ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2000-01-01 00:00:00
+2	b	2000-01-02 00:00:00
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/direct_left_right_join_nullable.result b/storage/spider/mysql-test/spider/r/direct_left_right_join_nullable.result
new file mode 100644
index 00000000..e6720c11
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/direct_left_right_join_nullable.result
@@ -0,0 +1,113 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+connection child2_1;
+SELECT 1;
+1
+1
+
+create table and insert
+connection child2_1;
+CHILD2_1_DROP_TABLES
+CHILD2_1_DROP_TABLES6
+CHILD2_1_DROP_TABLES4
+CHILD2_1_DROP_TABLES3
+CHILD2_1_CREATE_TABLES
+CHILD2_1_CREATE_TABLES6
+CHILD2_1_CREATE_TABLES4
+CHILD2_1_CREATE_TABLES3
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+DROP TABLE IF EXISTS tbl_a;
+CREATE TABLE tbl_a (
+a INT DEFAULT 10,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10',
+KEY idx0(a),
+KEY idx1(b)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+CREATE TABLE tbl_b (
+a INT DEFAULT 10,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10'
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT5_2_1
+CREATE TABLE tbl_c (
+a INT AUTO_INCREMENT,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10',
+KEY idx0(a),
+KEY idx1(b),
+KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT3_2_1
+CREATE TABLE tbl_d (
+a INT DEFAULT 10,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10'
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT2_2_1
+insert into tbl_a values (1,'a','2000/01/01'),(2,'b','2000/01/02');
+insert into tbl_b values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03');
+insert into tbl_c values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04');
+insert into tbl_d values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04'),(5,'e','2000/01/05');
+
+select test
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.a, c.b, c.c, d.a FROM tbl_a a left join tbl_b b on a.a = b.a left join tbl_c c on b.c = c.c right join tbl_d d on c.b = d.b ORDER BY d.a DESC;
+a	b	c	a
+NULL	NULL	NULL	5
+NULL	NULL	NULL	4
+NULL	NULL	NULL	3
+2	b	2000-01-02 00:00:00	2
+1	a	2000-01-01 00:00:00	1
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select t0.`a` `a`,t2.`b` `b`,t2.`c` `c`,t3.`a` `a` from `auto_test_remote`.`ta_r_no_idx` t3 left join (`auto_test_remote`.`ta_r_auto_inc` t2 join `auto_test_remote`.`ta_r_3` t1 join `auto_test_remote`.`ta_r` t0) on ((t2.`b` = t3.`b`) and (t2.`c` = t1.`c`) and (t0.`a` = t1.`a`) and (t1.`a` is not null)) where 1 order by t3.`a` desc
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_r ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2000-01-01 00:00:00
+2	b	2000-01-02 00:00:00
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/direct_left_right_left_join_nullable.result b/storage/spider/mysql-test/spider/r/direct_left_right_left_join_nullable.result
new file mode 100644
index 00000000..88205fb0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/direct_left_right_left_join_nullable.result
@@ -0,0 +1,112 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+connection child2_1;
+SELECT 1;
+1
+1
+
+create table and insert
+connection child2_1;
+CHILD2_1_DROP_TABLES
+CHILD2_1_DROP_TABLES6
+CHILD2_1_DROP_TABLES4
+CHILD2_1_DROP_TABLES3
+CHILD2_1_CREATE_TABLES
+CHILD2_1_CREATE_TABLES6
+CHILD2_1_CREATE_TABLES4
+CHILD2_1_CREATE_TABLES3
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+DROP TABLE IF EXISTS tbl_a;
+CREATE TABLE tbl_a (
+a INT DEFAULT 10,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10',
+KEY idx0(a),
+KEY idx1(b)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+CREATE TABLE tbl_b (
+a INT DEFAULT 10,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10'
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT5_2_1
+CREATE TABLE tbl_c (
+a INT AUTO_INCREMENT,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10',
+KEY idx0(a),
+KEY idx1(b),
+KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT3_2_1
+CREATE TABLE tbl_d (
+a INT DEFAULT 10,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10'
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT2_2_1
+insert into tbl_a values (1,'a','2000/01/01'),(2,'b','2000/01/02');
+insert into tbl_b values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03');
+insert into tbl_c values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04');
+insert into tbl_d values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04'),(5,'e','2000/01/05');
+
+select test
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.a, c.b, c.c, d.a FROM tbl_a a left join tbl_b b on a.a = b.a right join tbl_c c on b.c = c.c left join tbl_d d on c.b = d.b ORDER BY d.a DESC;
+a	b	c	a
+NULL	d	2000-01-04 00:00:00	4
+NULL	c	2000-01-03 00:00:00	3
+2	b	2000-01-02 00:00:00	2
+1	a	2000-01-01 00:00:00	1
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select t0.`a` `a`,t2.`b` `b`,t2.`c` `c`,t3.`a` `a` from `auto_test_remote`.`ta_r_auto_inc` t2 left join (`auto_test_remote`.`ta_r_3` t1 join `auto_test_remote`.`ta_r` t0) on ((t1.`c` = t2.`c`) and (t0.`a` = t1.`a`) and (t1.`a` is not null)) left join `auto_test_remote`.`ta_r_no_idx` t3 on (t3.`b` = t2.`b`) where 1 order by t3.`a` desc
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_r ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2000-01-01 00:00:00
+2	b	2000-01-02 00:00:00
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/direct_right_join.result b/storage/spider/mysql-test/spider/r/direct_right_join.result
new file mode 100644
index 00000000..8edfb682
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/direct_right_join.result
@@ -0,0 +1,108 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+connection child2_1;
+SELECT 1;
+1
+1
+
+create table and insert
+connection child2_1;
+CHILD2_1_DROP_TABLES
+CHILD2_1_DROP_TABLES6
+CHILD2_1_DROP_TABLES5
+CHILD2_1_CREATE_TABLES
+CHILD2_1_CREATE_TABLES6
+CHILD2_1_CREATE_TABLES5
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+DROP TABLE IF EXISTS tbl_a;
+CREATE TABLE tbl_a (
+a INT DEFAULT 10,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10',
+PRIMARY KEY(a),
+KEY idx1(b)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+CREATE TABLE tbl_b (
+a INT DEFAULT 10,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10'
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT5_2_1
+CREATE TABLE tbl_c (
+a INT AUTO_INCREMENT,
+b INT DEFAULT 10,
+c INT DEFAULT 11,
+PRIMARY KEY(a),
+KEY idx1(b),
+KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1
+insert into tbl_a values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04'),(5,'e','2000/01/05');
+insert into tbl_b values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04'),(5,'e','2000/01/05');
+insert into tbl_c values (1,10,100),(2,20,200),(3,30,300),(4,40,400),(5,50,500);
+
+select test
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.a, c.b, c.c FROM tbl_a a right join tbl_b b on a.a = b.a right join tbl_c c on a.a = c.a ORDER BY a.b DESC;
+a	b	c
+5	50	500
+4	40	400
+3	30	300
+2	20	200
+1	10	100
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select t0.`b` `b`,t0.`a` `a`,t2.`b` `b`,t2.`c` `c` from `auto_test_remote`.`ta_r_int` t2 left join (`auto_test_remote`.`ta_r` t0 join `auto_test_remote`.`ta_r_3` t1) on ((t0.`a` = t2.`a`) and (t1.`a` = t2.`a`)) where 1 order by t0.`b` desc
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_r ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2000-01-01 00:00:00
+2	b	2000-01-02 00:00:00
+3	c	2000-01-03 00:00:00
+4	d	2000-01-04 00:00:00
+5	e	2000-01-05 00:00:00
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/direct_right_join_nullable.result b/storage/spider/mysql-test/spider/r/direct_right_join_nullable.result
new file mode 100644
index 00000000..a0b44c95
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/direct_right_join_nullable.result
@@ -0,0 +1,113 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+connection child2_1;
+SELECT 1;
+1
+1
+
+create table and insert
+connection child2_1;
+CHILD2_1_DROP_TABLES
+CHILD2_1_DROP_TABLES6
+CHILD2_1_DROP_TABLES4
+CHILD2_1_DROP_TABLES3
+CHILD2_1_CREATE_TABLES
+CHILD2_1_CREATE_TABLES6
+CHILD2_1_CREATE_TABLES4
+CHILD2_1_CREATE_TABLES3
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+DROP TABLE IF EXISTS tbl_a;
+CREATE TABLE tbl_a (
+a INT DEFAULT 10,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10',
+KEY idx0(a),
+KEY idx1(b)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+CREATE TABLE tbl_b (
+a INT DEFAULT 10,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10'
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT5_2_1
+CREATE TABLE tbl_c (
+a INT AUTO_INCREMENT,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10',
+KEY idx0(a),
+KEY idx1(b),
+KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT3_2_1
+CREATE TABLE tbl_d (
+a INT DEFAULT 10,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10'
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT2_2_1
+insert into tbl_a values (1,'a','2000/01/01'),(2,'b','2000/01/02');
+insert into tbl_b values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03');
+insert into tbl_c values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04');
+insert into tbl_d values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04'),(5,'e','2000/01/05');
+
+select test
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.a, c.b, c.c, d.a FROM tbl_a a right join tbl_b b on a.a = b.a right join tbl_c c on b.c = c.c right join tbl_d d on c.b = d.b ORDER BY d.a DESC;
+a	b	c	a
+NULL	NULL	NULL	5
+NULL	d	2000-01-04 00:00:00	4
+NULL	c	2000-01-03 00:00:00	3
+2	b	2000-01-02 00:00:00	2
+1	a	2000-01-01 00:00:00	1
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select t0.`a` `a`,t2.`b` `b`,t2.`c` `c`,t3.`a` `a` from `auto_test_remote`.`ta_r_no_idx` t3 left join `auto_test_remote`.`ta_r_auto_inc` t2 on (t2.`b` = t3.`b`) left join `auto_test_remote`.`ta_r_3` t1 on (t1.`c` = t2.`c`) left join `auto_test_remote`.`ta_r` t0 on ((t0.`a` = t1.`a`) and (t1.`a` is not null)) where 1 order by t3.`a` desc
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_r ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2000-01-01 00:00:00
+2	b	2000-01-02 00:00:00
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/direct_right_left_join_nullable.result b/storage/spider/mysql-test/spider/r/direct_right_left_join_nullable.result
new file mode 100644
index 00000000..25e0913b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/direct_right_left_join_nullable.result
@@ -0,0 +1,112 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+connection child2_1;
+SELECT 1;
+1
+1
+
+create table and insert
+connection child2_1;
+CHILD2_1_DROP_TABLES
+CHILD2_1_DROP_TABLES6
+CHILD2_1_DROP_TABLES4
+CHILD2_1_DROP_TABLES3
+CHILD2_1_CREATE_TABLES
+CHILD2_1_CREATE_TABLES6
+CHILD2_1_CREATE_TABLES4
+CHILD2_1_CREATE_TABLES3
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+DROP TABLE IF EXISTS tbl_a;
+CREATE TABLE tbl_a (
+a INT DEFAULT 10,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10',
+KEY idx0(a),
+KEY idx1(b)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+CREATE TABLE tbl_b (
+a INT DEFAULT 10,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10'
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT5_2_1
+CREATE TABLE tbl_c (
+a INT AUTO_INCREMENT,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10',
+KEY idx0(a),
+KEY idx1(b),
+KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT3_2_1
+CREATE TABLE tbl_d (
+a INT DEFAULT 10,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10'
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT2_2_1
+insert into tbl_a values (1,'a','2000/01/01'),(2,'b','2000/01/02');
+insert into tbl_b values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03');
+insert into tbl_c values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04');
+insert into tbl_d values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04'),(5,'e','2000/01/05');
+
+select test
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.a, c.b, c.c, d.a FROM tbl_a a right join tbl_b b on a.a = b.a right join tbl_c c on b.c = c.c left join tbl_d d on c.b = d.b ORDER BY d.a DESC;
+a	b	c	a
+NULL	d	2000-01-04 00:00:00	4
+NULL	c	2000-01-03 00:00:00	3
+2	b	2000-01-02 00:00:00	2
+1	a	2000-01-01 00:00:00	1
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select t0.`a` `a`,t2.`b` `b`,t2.`c` `c`,t3.`a` `a` from `auto_test_remote`.`ta_r_auto_inc` t2 left join `auto_test_remote`.`ta_r_3` t1 on (t1.`c` = t2.`c`) left join `auto_test_remote`.`ta_r` t0 on ((t0.`a` = t1.`a`) and (t1.`a` is not null)) left join `auto_test_remote`.`ta_r_no_idx` t3 on (t3.`b` = t2.`b`) where 1 order by t3.`a` desc
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_r ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2000-01-01 00:00:00
+2	b	2000-01-02 00:00:00
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/direct_right_left_right_join_nullable.result b/storage/spider/mysql-test/spider/r/direct_right_left_right_join_nullable.result
new file mode 100644
index 00000000..0ee74cae
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/direct_right_left_right_join_nullable.result
@@ -0,0 +1,113 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+connection child2_1;
+SELECT 1;
+1
+1
+
+create table and insert
+connection child2_1;
+CHILD2_1_DROP_TABLES
+CHILD2_1_DROP_TABLES6
+CHILD2_1_DROP_TABLES4
+CHILD2_1_DROP_TABLES3
+CHILD2_1_CREATE_TABLES
+CHILD2_1_CREATE_TABLES6
+CHILD2_1_CREATE_TABLES4
+CHILD2_1_CREATE_TABLES3
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+DROP TABLE IF EXISTS tbl_a;
+CREATE TABLE tbl_a (
+a INT DEFAULT 10,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10',
+KEY idx0(a),
+KEY idx1(b)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+CREATE TABLE tbl_b (
+a INT DEFAULT 10,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10'
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT5_2_1
+CREATE TABLE tbl_c (
+a INT AUTO_INCREMENT,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10',
+KEY idx0(a),
+KEY idx1(b),
+KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT3_2_1
+CREATE TABLE tbl_d (
+a INT DEFAULT 10,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10'
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT2_2_1
+insert into tbl_a values (1,'a','2000/01/01'),(2,'b','2000/01/02');
+insert into tbl_b values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03');
+insert into tbl_c values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04');
+insert into tbl_d values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04'),(5,'e','2000/01/05');
+
+select test
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.a, c.b, c.c, d.a FROM tbl_a a right join tbl_b b on a.a = b.a left join tbl_c c on b.c = c.c right join tbl_d d on c.b = d.b ORDER BY d.a DESC;
+a	b	c	a
+NULL	NULL	NULL	5
+NULL	NULL	NULL	4
+NULL	c	2000-01-03 00:00:00	3
+2	b	2000-01-02 00:00:00	2
+1	a	2000-01-01 00:00:00	1
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select t0.`a` `a`,t2.`b` `b`,t2.`c` `c`,t3.`a` `a` from `auto_test_remote`.`ta_r_no_idx` t3 left join (`auto_test_remote`.`ta_r_auto_inc` t2 join `auto_test_remote`.`ta_r_3` t1 left join `auto_test_remote`.`ta_r` t0 on ((t0.`a` = t1.`a`) and (t1.`a` is not null))) on ((t2.`b` = t3.`b`) and (t2.`c` = t1.`c`)) where 1 order by t3.`a` desc
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_r ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2000-01-01 00:00:00
+2	b	2000-01-02 00:00:00
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/direct_update.result b/storage/spider/mysql-test/spider/r/direct_update.result
new file mode 100644
index 00000000..0e536d48
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/direct_update.result
@@ -0,0 +1,155 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+
+create table select test
+connection master_1;
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO ta_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+direct_updating test
+connection master_1;
+SHOW STATUS LIKE 'Spider_direct_update';
+Variable_name	Value
+Spider_direct_update	0
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+update all rows with function
+UPDATE ta_l SET c = ADDDATE(c, 1);
+SHOW STATUS LIKE 'Spider_direct_update';
+Variable_name	Value
+Spider_direct_update	1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	e	2007-06-05 20:03:11
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+update by primary key
+UPDATE ta_l SET b = 'x' WHERE a = 3;
+SHOW STATUS LIKE 'Spider_direct_update';
+Variable_name	Value
+Spider_direct_update	2
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	x	2007-06-05 20:03:11
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+update by a column without index
+UPDATE ta_l SET c = '2011-10-17' WHERE b = 'x';
+SHOW STATUS LIKE 'Spider_direct_update';
+Variable_name	Value
+Spider_direct_update	3
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	x	2011-10-17 00:00:00
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+update by primary key with order and limit
+UPDATE ta_l SET c = ADDDATE(c, 1) WHERE a < 4 ORDER BY b DESC LIMIT 1;
+SHOW STATUS LIKE 'Spider_direct_update';
+Variable_name	Value
+Spider_direct_update	4
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	x	2011-10-18 00:00:00
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+delete by primary key with order and limit
+DELETE FROM ta_l WHERE a < 4 ORDER BY c LIMIT 1;
+SHOW STATUS LIKE 'Spider_direct_delete';
+Variable_name	Value
+Spider_direct_delete	1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+3	x	2011-10-18 00:00:00
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+delete by a column without index
+DELETE FROM ta_l WHERE b = 'c';
+SHOW STATUS LIKE 'Spider_direct_delete';
+Variable_name	Value
+Spider_direct_delete	2
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+3	x	2011-10-18 00:00:00
+4	d	2003-12-01 05:01:03
+delete by primary key
+DELETE FROM ta_l WHERE a = 3;
+SHOW STATUS LIKE 'Spider_direct_delete';
+Variable_name	Value
+Spider_direct_delete	3
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+4	d	2003-12-01 05:01:03
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/direct_update_part.result b/storage/spider/mysql-test/spider/r/direct_update_part.result
new file mode 100644
index 00000000..7069cd72
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/direct_update_part.result
@@ -0,0 +1,145 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+
+with partition test
+connection master_1;
+CREATE TABLE ta_l2 (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1
+SHOW STATUS LIKE 'Spider_direct_update';
+Variable_name	Value
+Spider_direct_update	0
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+update all rows with function
+UPDATE ta_l2 SET c = ADDDATE(c, 1);
+SHOW STATUS LIKE 'Spider_direct_update';
+Variable_name	Value
+Spider_direct_update	2
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	e	2007-06-05 20:03:11
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+update by primary key
+UPDATE ta_l2 SET b = 'x' WHERE a = 3;
+SHOW STATUS LIKE 'Spider_direct_update';
+Variable_name	Value
+Spider_direct_update	3
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	x	2007-06-05 20:03:11
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+update by a column without index
+UPDATE ta_l2 SET c = '2011-10-17' WHERE b = 'x';
+SHOW STATUS LIKE 'Spider_direct_update';
+Variable_name	Value
+Spider_direct_update	5
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	x	2011-10-17 00:00:00
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+update by primary key with order and limit
+UPDATE ta_l2 SET c = ADDDATE(c, 1) WHERE a < 4 ORDER BY b DESC LIMIT 1;
+SHOW STATUS LIKE 'Spider_direct_update';
+Variable_name	Value
+Spider_direct_update	6
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+2	b	2000-01-02 00:00:00
+3	x	2011-10-18 00:00:00
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+delete by primary key with order and limit
+DELETE FROM ta_l2 WHERE a < 4 ORDER BY c LIMIT 1;
+SHOW STATUS LIKE 'Spider_direct_delete';
+Variable_name	Value
+Spider_direct_delete	1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+3	x	2011-10-18 00:00:00
+4	d	2003-12-01 05:01:03
+5	c	2002-01-01 23:59:59
+delete by a column without index
+DELETE FROM ta_l2 WHERE b = 'c';
+SHOW STATUS LIKE 'Spider_direct_delete';
+Variable_name	Value
+Spider_direct_delete	3
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+3	x	2011-10-18 00:00:00
+4	d	2003-12-01 05:01:03
+delete by primary key
+DELETE FROM ta_l2 WHERE a = 3;
+SHOW STATUS LIKE 'Spider_direct_delete';
+Variable_name	Value
+Spider_direct_delete	4
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-02 10:21:39
+4	d	2003-12-01 05:01:03
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/function.result b/storage/spider/mysql-test/spider/r/function.result
new file mode 100644
index 00000000..c088a8a9
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/function.result
@@ -0,0 +1,160 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+
+in()
+connection master_1;
+CREATE TABLE t1 (
+a VARCHAR(255),
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET3 MASTER_1_COMMENT_TEXT_PK1_1
+insert into t1 values ('1');
+insert into t1 select a + 1 from t1;
+insert into t1 select a + 2 from t1;
+insert into t1 select a + 4 from t1;
+insert into t1 select a + 8 from t1;
+insert into t1 select a + 16 from t1;
+insert into t1 select a + 32 from t1;
+insert into t1 select a + 64 from t1;
+insert into t1 select a + 128 from t1;
+insert into t1 select a + 256 from t1;
+insert into t1 select a + 512 from t1;
+flush tables;
+connection master_1;
+select a from t1 where a in ('15', '120');
+a
+120
+15
+
+date_sub()
+connection master_1;
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO ta_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 YEAR);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-08-01 10:21:39
+2	b	1999-01-01 00:00:00
+3	e	2006-06-04 20:03:11
+4	d	2002-11-30 05:01:03
+5	c	2000-12-31 23:59:59
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 QUARTER);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-11-01 10:21:39
+2	b	1999-04-01 00:00:00
+3	e	2006-09-04 20:03:11
+4	d	2003-02-28 05:01:03
+5	c	2001-03-31 23:59:59
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 MONTH);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-10-01 10:21:39
+2	b	1999-03-01 00:00:00
+3	e	2006-08-04 20:03:11
+4	d	2003-01-28 05:01:03
+5	c	2001-02-28 23:59:59
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 WEEK);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-10-08 10:21:39
+2	b	1999-03-08 00:00:00
+3	e	2006-08-11 20:03:11
+4	d	2003-02-04 05:01:03
+5	c	2001-03-07 23:59:59
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 DAY);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-10-07 10:21:39
+2	b	1999-03-07 00:00:00
+3	e	2006-08-10 20:03:11
+4	d	2003-02-03 05:01:03
+5	c	2001-03-06 23:59:59
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 HOUR);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-10-07 11:21:39
+2	b	1999-03-07 01:00:00
+3	e	2006-08-10 21:03:11
+4	d	2003-02-03 06:01:03
+5	c	2001-03-07 00:59:59
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 MINUTE);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-10-07 11:20:39
+2	b	1999-03-07 00:59:00
+3	e	2006-08-10 21:02:11
+4	d	2003-02-03 06:00:03
+5	c	2001-03-07 00:58:59
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 SECOND);
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2007-10-07 11:20:40
+2	b	1999-03-07 00:59:01
+3	e	2006-08-10 21:02:12
+4	d	2003-02-03 06:00:04
+5	c	2001-03-07 00:59:00
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/ha.result b/storage/spider/mysql-test/spider/r/ha.result
new file mode 100644
index 00000000..f8833c22
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/ha.result
@@ -0,0 +1,266 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+connection child2_3;
+DROP DATABASE IF EXISTS auto_test_remote3;
+CREATE DATABASE auto_test_remote3;
+USE auto_test_remote3;
+connection child3_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child3_2;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child3_3;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+
+create table test
+connection master_1;
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_2_1
+INSERT INTO ta_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+select test
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+fail-over test
+connection master_1;
+SHOW STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	0
+Spider_mon_table_cache_version_req	1
+INSERT INTO ta_l (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+ERROR HY000: Table 'auto_test_remote2.ta_r3' get a problem
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l	0	1
+auto_test_local	ta_l	1	3
+SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+db_name	table_name	link_id
+auto_test_local	ta_l	1
+SHOW STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	1
+Spider_mon_table_cache_version_req	1
+INSERT INTO ta_l (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+6	e	2011-05-05 20:04:05
+
+recovery test
+connection master_1;
+ALTER TABLE ta_l
+CONNECTION='host "localhost", user "root", password "",
+  msi "5", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 2"';
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l	0	1
+auto_test_local	ta_l	1	2
+SELECT spider_copy_tables('ta_l', '0', '1');
+spider_copy_tables('ta_l', '0', '1')
+1
+connection master_1;
+ALTER TABLE ta_l
+CONNECTION='host "localhost", user "root", password "",
+  msi "5", mkd "2",
+  database "auto_test_remote auto_test_remote2", lst "0 1"';
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l	0	1
+auto_test_local	ta_l	1	1
+INSERT INTO ta_l (a, b, c) VALUES
+(8, 'g', '2011-05-05 21:33:30');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+6	e	2011-05-05 20:04:05
+8	g	2011-05-05 21:33:30
+DROP TABLE ta_l;
+connection master_1;
+SELECT spider_flush_table_mon_cache();
+spider_flush_table_mon_cache()
+1
+
+active standby test
+create table test
+connection master_1;
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_AS_2_1
+INSERT INTO ta_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+select test
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+fail-over test
+connection master_1;
+SHOW STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	1
+Spider_mon_table_cache_version_req	2
+INSERT INTO ta_l (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+ERROR HY000: Table 'auto_test_remote.ta_r' get a problem
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l	0	3
+auto_test_local	ta_l	1	1
+SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+db_name	table_name	link_id
+auto_test_local	ta_l	1
+auto_test_local	ta_l	0
+SHOW STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	2
+Spider_mon_table_cache_version_req	2
+INSERT INTO ta_l (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+6	e	2011-05-05 20:04:05
+
+recovery test
+connection master_1;
+ALTER TABLE ta_l
+CONNECTION='host "localhost", user "root", password "",
+  msi "5", mkd "2", alc "1",
+  database "auto_test_remote auto_test_remote2", lst "1 0"';
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l	0	1
+auto_test_local	ta_l	1	1
+INSERT INTO ta_l (a, b, c) VALUES
+(8, 'g', '2011-05-05 21:33:30');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+8	g	2011-05-05 21:33:30
+DROP TABLE ta_l;
+connection master_1;
+SELECT spider_flush_table_mon_cache();
+spider_flush_table_mon_cache()
+1
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+connection child2_3;
+DROP DATABASE IF EXISTS auto_test_remote3;
+connection child3_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child3_2;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child3_3;
+DROP DATABASE IF EXISTS auto_test_local;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/ha_part.result b/storage/spider/mysql-test/spider/r/ha_part.result
new file mode 100644
index 00000000..315f3729
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/ha_part.result
@@ -0,0 +1,286 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+connection child2_3;
+DROP DATABASE IF EXISTS auto_test_remote3;
+CREATE DATABASE auto_test_remote3;
+USE auto_test_remote3;
+connection child3_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child3_2;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child3_3;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+
+create table with partition test
+connection master_1;
+DROP TABLE IF EXISTS ta_l2;
+CREATE TABLE ta_l2 (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_P_2_1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+select test
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+fail-over test
+connection master_1;
+SHOW STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	0
+Spider_mon_table_cache_version_req	1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+ERROR HY000: Table 'auto_test_remote3.ta_r4' get a problem
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l2#P#pt1	0	1
+auto_test_local	ta_l2#P#pt1	1	1
+auto_test_local	ta_l2#P#pt2	0	1
+auto_test_local	ta_l2#P#pt2	1	3
+SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+db_name	table_name	link_id
+auto_test_local	ta_l2#P#pt2	1
+SHOW STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	1
+Spider_mon_table_cache_version_req	1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+6	e	2011-05-05 20:04:05
+
+recovery test
+connection master_1;
+ALTER TABLE ta_l2
+PARTITION BY KEY(a) (
+PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 2"'
+  );
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l2#P#pt1	0	1
+auto_test_local	ta_l2#P#pt1	1	1
+auto_test_local	ta_l2#P#pt2	0	1
+auto_test_local	ta_l2#P#pt2	1	2
+SELECT spider_copy_tables('ta_l2#P#pt2', '0', '1');
+spider_copy_tables('ta_l2#P#pt2', '0', '1')
+1
+connection master_1;
+ALTER TABLE ta_l2
+PARTITION BY KEY(a) (
+PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "0 1"'
+  );
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l2#P#pt1	0	1
+auto_test_local	ta_l2#P#pt1	1	1
+auto_test_local	ta_l2#P#pt2	0	1
+auto_test_local	ta_l2#P#pt2	1	1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(8, 'g', '2011-05-05 21:33:30'),
+(9, 'h', '2011-05-05 22:32:10');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+6	e	2011-05-05 20:04:05
+8	g	2011-05-05 21:33:30
+9	h	2011-05-05 22:32:10
+DROP TABLE ta_l2;
+
+create table with partition test
+connection master_1;
+DROP TABLE IF EXISTS ta_l2;
+CREATE TABLE ta_l2 (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_AS_P_2_1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+select test
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+fail-over test
+connection master_1;
+SHOW STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	1
+Spider_mon_table_cache_version_req	1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+ERROR HY000: Table 'auto_test_remote.ta_r2' get a problem
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l2#P#pt1	0	1
+auto_test_local	ta_l2#P#pt1	1	1
+auto_test_local	ta_l2#P#pt2	0	3
+auto_test_local	ta_l2#P#pt2	1	1
+SELECT db_name, table_name, link_id FROM mysql.spider_link_failed_log;
+db_name	table_name	link_id
+auto_test_local	ta_l2#P#pt2	1
+auto_test_local	ta_l2#P#pt2	0
+SHOW STATUS LIKE 'Spider_mon_table_cache_version%';
+Variable_name	Value
+Spider_mon_table_cache_version	1
+Spider_mon_table_cache_version_req	1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(6, 'e', '2011-05-05 20:04:05');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+3	e	2007-06-04 20:03:11
+5	c	2001-12-31 23:59:59
+6	e	2011-05-05 20:04:05
+
+recovery test
+connection master_1;
+ALTER TABLE ta_l2
+PARTITION BY KEY(a) (
+PARTITION pt1 COMMENT='srv "s_2_1 s_2_2", tbl "ta_r ta_r3",
+    priority "1000"',
+PARTITION pt2 COMMENT='srv "s_2_1 s_2_3", tbl "ta_r2 ta_r4",
+    priority "1000001", lst "1 0"'
+  );
+SELECT db_name, table_name, link_id, link_status FROM mysql.spider_tables
+ORDER BY db_name, table_name, link_id;
+db_name	table_name	link_id	link_status
+auto_test_local	ta_l2#P#pt1	0	1
+auto_test_local	ta_l2#P#pt1	1	1
+auto_test_local	ta_l2#P#pt2	0	1
+auto_test_local	ta_l2#P#pt2	1	1
+INSERT INTO ta_l2 (a, b, c) VALUES
+(8, 'g', '2011-05-05 21:33:30'),
+(9, 'h', '2011-05-05 22:32:10');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+3	e	2007-06-04 20:03:11
+5	c	2001-12-31 23:59:59
+8	g	2011-05-05 21:33:30
+9	h	2011-05-05 22:32:10
+DROP TABLE ta_l2;
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+connection child2_3;
+DROP DATABASE IF EXISTS auto_test_remote3;
+connection child3_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child3_2;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child3_3;
+DROP DATABASE IF EXISTS auto_test_local;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/partition_cond_push.result b/storage/spider/mysql-test/spider/r/partition_cond_push.result
new file mode 100644
index 00000000..ce26416b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/partition_cond_push.result
@@ -0,0 +1,168 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+connection child2_3;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+DROP DATABASE IF EXISTS auto_test_remote3;
+CREATE DATABASE auto_test_remote3;
+USE auto_test_remote3;
+
+create table and insert
+connection child2_1;
+CHILD2_1_DROP_TABLES
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+CHILD2_2_DROP_TABLES
+CHILD2_2_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_3;
+CHILD2_3_DROP_TABLES
+CHILD2_3_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+DROP TABLE IF EXISTS tbl_a;
+DROP TABLE IF EXISTS tbl_b;
+CREATE TABLE tbl_a (
+value int NOT NULL
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (value) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_a (value) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_a (value) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+
+select test
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT value FROM tbl_a WHERE value < 100;
+value
+4
+5
+10
+11
+16
+17
+22
+23
+28
+29
+0
+1
+6
+7
+12
+13
+18
+19
+24
+25
+2
+3
+8
+9
+14
+15
+20
+21
+26
+27
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `value` from `auto_test_remote`.`tbl_a` where (`value` < 100)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT value FROM tbl_a ORDER BY value;
+value
+4
+5
+10
+11
+16
+17
+22
+23
+28
+29
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `value` from `auto_test_remote2`.`tbl_a` where (`value` < 100)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT value FROM tbl_a ORDER BY value;
+value
+0
+1
+6
+7
+12
+13
+18
+19
+24
+25
+connection child2_3;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `value` from `auto_test_remote3`.`tbl_a` where (`value` < 100)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT value FROM tbl_a ORDER BY value;
+value
+2
+3
+8
+9
+14
+15
+20
+21
+26
+27
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+connection child2_3;
+DROP DATABASE IF EXISTS auto_test_remote3;
+SET GLOBAL log_output = @old_log_output;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/partition_fulltext.result b/storage/spider/mysql-test/spider/r/partition_fulltext.result
new file mode 100644
index 00000000..6c001d25
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/partition_fulltext.result
@@ -0,0 +1,126 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+connection master_1;
+set @old_join_cache_level= @@join_cache_level;
+set session join_cache_level= 5;
+set @old_optimizer_switch= @@optimizer_switch;
+set session optimizer_switch= 'mrr=on';
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+connection child2_3;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+DROP DATABASE IF EXISTS auto_test_remote3;
+CREATE DATABASE auto_test_remote3;
+USE auto_test_remote3;
+
+create table and insert
+connection child2_1;
+CHILD2_1_DROP_TABLES
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+CHILD2_2_DROP_TABLES
+CHILD2_2_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_3;
+CHILD2_3_DROP_TABLES
+CHILD2_3_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+DROP TABLE IF EXISTS tbl_a;
+DROP TABLE IF EXISTS tbl_b;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+words text NOT NULL,
+PRIMARY KEY (pkey),
+FULLTEXT (words)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey, words) VALUES (0, 'abc'),(1, 'def'),(2, 'ghi'),(3, 'jkl'),(4, 'mno'),(5, 'pqr'),(6, 'stu'),(7, 'vwx');
+
+select test
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT pkey, words FROM tbl_a WHERE match(words) against('+ghi' in boolean mode);
+pkey	words
+2	ghi
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select match(`words`)against('+ghi' in boolean mode),`pkey`,`words` from `auto_test_remote`.`tbl_a` where match(`words`)against('+ghi' in boolean mode) and (match(`words`)against(_latin1'+ghi' in boolean mode))
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+4
+5
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select match(`words`)against('+ghi' in boolean mode),`pkey`,`words` from `auto_test_remote2`.`tbl_a` where match(`words`)against('+ghi' in boolean mode) and (match(`words`)against(_latin1'+ghi' in boolean mode))
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+6
+7
+connection child2_3;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select match(`words`)against('+ghi' in boolean mode),`pkey`,`words` from `auto_test_remote3`.`tbl_a` where match(`words`)against('+ghi' in boolean mode) and (match(`words`)against(_latin1'+ghi' in boolean mode))
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+2
+3
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+connection child2_3;
+DROP DATABASE IF EXISTS auto_test_remote3;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session join_cache_level= @old_join_cache_level;
+set session optimizer_switch= @old_optimizer_switch;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/partition_join_pushdown_for_single_partition.result b/storage/spider/mysql-test/spider/r/partition_join_pushdown_for_single_partition.result
new file mode 100644
index 00000000..899788ae
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/partition_join_pushdown_for_single_partition.result
@@ -0,0 +1,130 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+connection child2_3;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+DROP DATABASE IF EXISTS auto_test_remote3;
+CREATE DATABASE auto_test_remote3;
+USE auto_test_remote3;
+
+create table and insert
+connection child2_1;
+CHILD2_1_DROP_TABLES
+CHILD2_1_DROP_TABLES2
+CHILD2_1_CREATE_TABLES
+CHILD2_1_CREATE_TABLES2
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+CHILD2_2_DROP_TABLES
+CHILD2_2_DROP_TABLES2
+CHILD2_2_CREATE_TABLES
+CHILD2_2_CREATE_TABLES2
+TRUNCATE TABLE mysql.general_log;
+connection child2_3;
+CHILD2_3_DROP_TABLES
+CHILD2_3_DROP_TABLES2
+CHILD2_3_CREATE_TABLES
+CHILD2_3_CREATE_TABLES2
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+DROP TABLE IF EXISTS tbl_a;
+DROP TABLE IF EXISTS tbl_b;
+CREATE TABLE tbl_a (
+value int NOT NULL,
+PRIMARY KEY(value)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+CREATE TABLE tbl_b (
+value2 int NOT NULL,
+PRIMARY KEY(value2)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_2
+insert into tbl_a values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
+insert into tbl_b values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
+connection master_1;
+SELECT sum(a.value), count(b.value2) FROM tbl_a a, tbl_b b WHERE a.value = b.value2 AND a.value = 5;
+sum(a.value)	count(b.value2)
+5	1
+SELECT sum(a.value), count(b.value2) FROM tbl_a a, tbl_b b WHERE a.value = 5 and b.value2 = 5;
+sum(a.value)	count(b.value2)
+5	1
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT value FROM tbl_a ORDER BY value;
+value
+1
+2
+3
+4
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `value` from `auto_test_remote2`.`tbl_a` where `value` = 5
+select `value2` from `auto_test_remote2`.`tbl_b` where `value2` = 5
+select `value` from `auto_test_remote2`.`tbl_a` where `value` = 5
+select `value2` from `auto_test_remote2`.`tbl_b` where `value2` = 5
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT value FROM tbl_a ORDER BY value;
+value
+5
+6
+7
+8
+9
+connection child2_3;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT value FROM tbl_a ORDER BY value;
+value
+10
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+connection child2_3;
+DROP DATABASE IF EXISTS auto_test_remote3;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/partition_mrr.result b/storage/spider/mysql-test/spider/r/partition_mrr.result
new file mode 100644
index 00000000..2335e893
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/partition_mrr.result
@@ -0,0 +1,223 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+connection master_1;
+set @old_join_cache_level= @@join_cache_level;
+set session join_cache_level= 5;
+set @old_optimizer_switch= @@optimizer_switch;
+set session optimizer_switch= 'mrr=on';
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+connection child2_3;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+DROP DATABASE IF EXISTS auto_test_remote3;
+CREATE DATABASE auto_test_remote3;
+USE auto_test_remote3;
+
+create table and insert
+connection child2_1;
+CHILD2_1_DROP_TABLES
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+CHILD2_2_DROP_TABLES
+CHILD2_2_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_3;
+CHILD2_3_DROP_TABLES
+CHILD2_3_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+DROP TABLE IF EXISTS tbl_a;
+DROP TABLE IF EXISTS tbl_b;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+CREATE TABLE tbl_b (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_2
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_a (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_a (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+INSERT INTO tbl_b (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_b (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_b (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+
+select test
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+pkey
+4
+5
+10
+11
+16
+17
+22
+23
+28
+29
+0
+1
+6
+7
+12
+13
+18
+19
+24
+25
+2
+3
+8
+9
+14
+15
+20
+21
+26
+27
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote`.`tbl_a` order by `pkey`
+select a.id,b.`pkey` from auto_test_remote.tmp_spider_bka_xxxx a,`auto_test_remote`.`tbl_b` b where a.c0 <=> b.`pkey`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_a ORDER BY pkey ;
+SELECT pkey FROM tbl_b ORDER BY pkey;
+pkey
+4
+5
+10
+11
+16
+17
+22
+23
+28
+29
+pkey
+2
+3
+8
+9
+14
+15
+20
+21
+26
+27
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote2`.`tbl_a` order by `pkey`
+select a.id,b.`pkey` from auto_test_remote2.tmp_spider_bka_xxxx a,`auto_test_remote2`.`tbl_b` b where a.c0 <=> b.`pkey`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_a ORDER BY pkey ;
+SELECT pkey FROM tbl_b ORDER BY pkey;
+pkey
+0
+1
+6
+7
+12
+13
+18
+19
+24
+25
+pkey
+4
+5
+10
+11
+16
+17
+22
+23
+28
+29
+connection child2_3;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote3`.`tbl_a` order by `pkey`
+select a.id,b.`pkey` from auto_test_remote3.tmp_spider_bka_xxxx a,`auto_test_remote3`.`tbl_b` b where a.c0 <=> b.`pkey`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_a ORDER BY pkey ;
+SELECT pkey FROM tbl_b ORDER BY pkey;
+pkey
+2
+3
+8
+9
+14
+15
+20
+21
+26
+27
+pkey
+0
+1
+6
+7
+12
+13
+18
+19
+24
+25
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+connection child2_3;
+DROP DATABASE IF EXISTS auto_test_remote3;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session join_cache_level= @old_join_cache_level;
+set session optimizer_switch= @old_optimizer_switch;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/pushdown_not_like.result b/storage/spider/mysql-test/spider/r/pushdown_not_like.result
new file mode 100644
index 00000000..0e007b09
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/pushdown_not_like.result
@@ -0,0 +1,63 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table select test
+connection master_1;
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO ta_l (a, b, c) VALUES
+(1, 'a', '2018-11-01 10:21:39'),
+(2, 'b', '2015-06-30 23:59:59'),
+(3, 'c', '2013-11-01 01:01:01');
+
+spider not like bug fix test
+connection master_1;
+select * from ta_l where b not like 'a%';
+a	b	c
+2	b	2015-06-30 23:59:59
+3	c	2013-11-01 01:01:01
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select%';
+argument
+select t0.`a` `a`,t0.`b` `b`,t0.`c` `c` from `auto_test_remote`.`ta_r` t0 where (t0.`b` not like 'a%')
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select%'
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/quick_mode_0.result b/storage/spider/mysql-test/spider/r/quick_mode_0.result
new file mode 100644
index 00000000..239c3ee1
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/quick_mode_0.result
@@ -0,0 +1,508 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+connection master_1;
+set @old_spider_quick_mode= @@spider_quick_mode;
+set session spider_quick_mode= 0;
+set @old_spider_quick_page_size= @@spider_quick_page_size;
+set session spider_quick_page_size= 3;
+set @old_spider_quick_page_byte= @@spider_quick_page_byte;
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+CHILD2_2_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+CREATE TABLE tbl_b (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_2
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_a (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_a (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+INSERT INTO tbl_b (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_b (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_b (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote`.`tbl_a` order by `pkey`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 0
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 1
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 2
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 3
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 4
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 5
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 6
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 7
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 8
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 9
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 10
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 11
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 12
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 13
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 14
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 15
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 16
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 17
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 18
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 19
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 20
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 21
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 22
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 23
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 24
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 25
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 26
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 27
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 28
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 29
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_b ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection master_1;
+set session spider_quick_page_byte= 6;
+
+select test 2
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote`.`tbl_a` order by `pkey`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 0
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 1
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 2
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 3
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 4
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 5
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 6
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 7
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 8
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 9
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 10
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 11
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 12
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 13
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 14
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 15
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 16
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 17
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 18
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 19
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 20
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 21
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 22
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 23
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 24
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 25
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 26
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 27
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 28
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 29
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_b ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection master_1;
+set session spider_quick_page_byte= 0;
+
+select test 3
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote`.`tbl_a` order by `pkey`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 0
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 1
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 2
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 3
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 4
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 5
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 6
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 7
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 8
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 9
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 10
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 11
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 12
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 13
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 14
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 15
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 16
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 17
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 18
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 19
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 20
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 21
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 22
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 23
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 24
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 25
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 26
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 27
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 28
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 29
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_b ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_quick_mode= @old_spider_quick_mode;
+set session spider_quick_page_size= @old_spider_quick_page_size;
+set session spider_quick_page_byte= @old_spider_quick_page_byte;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/quick_mode_1.result b/storage/spider/mysql-test/spider/r/quick_mode_1.result
new file mode 100644
index 00000000..d0db0729
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/quick_mode_1.result
@@ -0,0 +1,508 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+connection master_1;
+set @old_spider_quick_mode= @@spider_quick_mode;
+set session spider_quick_mode= 1;
+set @old_spider_quick_page_size= @@spider_quick_page_size;
+set session spider_quick_page_size= 3;
+set @old_spider_quick_page_byte= @@spider_quick_page_byte;
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+CHILD2_2_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+CREATE TABLE tbl_b (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_2
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_a (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_a (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+INSERT INTO tbl_b (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_b (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_b (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote`.`tbl_a` order by `pkey`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 0
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 1
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 2
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 3
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 4
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 5
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 6
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 7
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 8
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 9
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 10
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 11
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 12
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 13
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 14
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 15
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 16
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 17
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 18
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 19
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 20
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 21
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 22
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 23
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 24
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 25
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 26
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 27
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 28
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 29
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_b ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection master_1;
+set session spider_quick_page_byte= 6;
+
+select test 2
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote`.`tbl_a` order by `pkey`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 0
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 1
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 2
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 3
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 4
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 5
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 6
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 7
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 8
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 9
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 10
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 11
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 12
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 13
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 14
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 15
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 16
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 17
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 18
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 19
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 20
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 21
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 22
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 23
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 24
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 25
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 26
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 27
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 28
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 29
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_b ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection master_1;
+set session spider_quick_page_byte= 0;
+
+select test 3
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote`.`tbl_a` order by `pkey`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 0
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 1
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 2
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 3
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 4
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 5
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 6
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 7
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 8
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 9
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 10
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 11
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 12
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 13
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 14
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 15
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 16
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 17
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 18
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 19
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 20
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 21
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 22
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 23
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 24
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 25
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 26
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 27
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 28
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 29
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_b ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_quick_mode= @old_spider_quick_mode;
+set session spider_quick_page_size= @old_spider_quick_page_size;
+set session spider_quick_page_byte= @old_spider_quick_page_byte;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/quick_mode_2.result b/storage/spider/mysql-test/spider/r/quick_mode_2.result
new file mode 100644
index 00000000..538057e3
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/quick_mode_2.result
@@ -0,0 +1,508 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+connection master_1;
+set @old_spider_quick_mode= @@spider_quick_mode;
+set session spider_quick_mode= 2;
+set @old_spider_quick_page_size= @@spider_quick_page_size;
+set session spider_quick_page_size= 3;
+set @old_spider_quick_page_byte= @@spider_quick_page_byte;
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+CHILD2_2_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+CREATE TABLE tbl_b (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_2
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_a (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_a (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+INSERT INTO tbl_b (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_b (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_b (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote`.`tbl_a` order by `pkey`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 0
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 1
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 2
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 3
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 4
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 5
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 6
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 7
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 8
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 9
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 10
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 11
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 12
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 13
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 14
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 15
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 16
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 17
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 18
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 19
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 20
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 21
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 22
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 23
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 24
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 25
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 26
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 27
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 28
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 29
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_b ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection master_1;
+set session spider_quick_page_byte= 6;
+
+select test 2
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote`.`tbl_a` order by `pkey`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 0
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 1
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 2
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 3
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 4
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 5
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 6
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 7
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 8
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 9
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 10
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 11
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 12
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 13
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 14
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 15
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 16
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 17
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 18
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 19
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 20
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 21
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 22
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 23
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 24
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 25
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 26
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 27
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 28
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 29
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_b ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection master_1;
+set session spider_quick_page_byte= 0;
+
+select test 3
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote`.`tbl_a` order by `pkey`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 0
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 1
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 2
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 3
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 4
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 5
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 6
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 7
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 8
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 9
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 10
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 11
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 12
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 13
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 14
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 15
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 16
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 17
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 18
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 19
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 20
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 21
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 22
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 23
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 24
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 25
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 26
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 27
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 28
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 29
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_b ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_quick_mode= @old_spider_quick_mode;
+set session spider_quick_page_size= @old_spider_quick_page_size;
+set session spider_quick_page_byte= @old_spider_quick_page_byte;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/quick_mode_3.result b/storage/spider/mysql-test/spider/r/quick_mode_3.result
new file mode 100644
index 00000000..9232dd15
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/quick_mode_3.result
@@ -0,0 +1,508 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+connection master_1;
+set @old_spider_quick_mode= @@spider_quick_mode;
+set session spider_quick_mode= 3;
+set @old_spider_quick_page_size= @@spider_quick_page_size;
+set session spider_quick_page_size= 3;
+set @old_spider_quick_page_byte= @@spider_quick_page_byte;
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+CHILD2_2_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+CREATE TABLE tbl_b (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_2
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_a (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_a (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+INSERT INTO tbl_b (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_b (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_b (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote`.`tbl_a` order by `pkey`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 0
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 1
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 2
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 3
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 4
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 5
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 6
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 7
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 8
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 9
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 10
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 11
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 12
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 13
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 14
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 15
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 16
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 17
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 18
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 19
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 20
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 21
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 22
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 23
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 24
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 25
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 26
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 27
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 28
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 29
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_b ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection master_1;
+set session spider_quick_page_byte= 6;
+
+select test 2
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote`.`tbl_a` order by `pkey`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 0
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 1
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 2
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 3
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 4
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 5
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 6
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 7
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 8
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 9
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 10
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 11
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 12
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 13
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 14
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 15
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 16
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 17
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 18
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 19
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 20
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 21
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 22
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 23
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 24
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 25
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 26
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 27
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 28
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 29
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_b ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection master_1;
+set session spider_quick_page_byte= 0;
+
+select test 3
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote`.`tbl_a` order by `pkey`
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 0
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 1
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 2
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 3
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 4
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 5
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 6
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 7
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 8
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 9
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 10
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 11
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 12
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 13
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 14
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 15
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 16
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 17
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 18
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 19
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 20
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 21
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 22
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 23
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 24
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 25
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 26
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 27
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 28
+select `pkey` from `auto_test_remote2`.`tbl_b` where `pkey` = 29
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey FROM tbl_b ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_quick_mode= @old_spider_quick_mode;
+set session spider_quick_page_size= @old_spider_quick_page_size;
+set session spider_quick_page_byte= @old_spider_quick_page_byte;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/show_system_tables.result b/storage/spider/mysql-test/spider/r/show_system_tables.result
new file mode 100644
index 00000000..67411862
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/show_system_tables.result
@@ -0,0 +1,37 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+Show system tables on the Spider node
+connection master_1;
+SELECT table_name, engine FROM information_schema.tables
+WHERE table_schema = 'mysql' AND table_name like '%spider_%';
+table_name	engine
+spider_link_failed_log	Aria
+spider_link_mon_servers	Aria
+spider_table_crd	Aria
+spider_table_position_for_recovery	Aria
+spider_table_sts	Aria
+spider_tables	Aria
+spider_xa	Aria
+spider_xa_failed_log	Aria
+spider_xa_member	Aria
+
+deinit
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/slave_trx_isolation.result b/storage/spider/mysql-test/spider/r/slave_trx_isolation.result
new file mode 100644
index 00000000..a9b88d50
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/slave_trx_isolation.result
@@ -0,0 +1,105 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for slave1_1
+connection slave1_1;
+set @old_spider_slave_trx_isolation= @@spider_slave_trx_isolation;
+set global spider_slave_trx_isolation= 1;
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection slave1_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+connection slave1_1;
+connection master_1;
+SET SESSION sql_log_bin= 0;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+SET SESSION sql_log_bin= 1;
+connection slave1_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+connection master_1;
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+connection slave1_1;
+connection master_1;
+SET SESSION sql_log_bin= 0;
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%set %';
+argument
+set session time_zone = '+00:00';set @`spider_lc_./auto_test_remote/tbl_a` = '-xxxxxxxxxxxx-xxxxx-./auto_test_local/tbl_a-'
+SET NAMES utf8
+set session transaction isolation level read committed;set session autocommit = 1;set session wait_timeout = 604800;set session sql_mode = 'strict_trans_tables,error_for_division_by_zero,no_auto_create_user,no_engine_substitution';start transaction
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%set %'
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+connection slave1_1;
+SELECT pkey FROM tbl_a ORDER BY pkey;
+pkey
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection slave1_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection slave1_1;
+set global spider_slave_trx_isolation= @old_spider_slave_trx_isolation;
+for slave1_1
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/spider3_fixes.result b/storage/spider/mysql-test/spider/r/spider3_fixes.result
new file mode 100644
index 00000000..d6aec25b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/spider3_fixes.result
@@ -0,0 +1,224 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for slave1_1
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection slave1_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+
+3.1
+auto_increment
+connection master_1;
+connection slave1_1;
+connection master_1;
+DROP TABLE IF EXISTS t1, t2;
+CREATE TABLE t1 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_1
+CREATE TABLE t2 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_1
+MASTER_1_AUTO_INCREMENT_INCREMENT2
+MASTER_1_AUTO_INCREMENT_OFFSET2
+spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 4', '',
+'srv "s_2_1"')
+1
+spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 4', '',
+'srv "s_2_2"')
+1
+spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 2', '',
+'srv "s_2_1"')
+1
+spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 3', '',
+'srv "s_2_2"')
+1
+CREATE TABLE t1 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_1
+CREATE TABLE t2 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_1
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+777
+SELECT MAX(id) FROM t1;
+MAX(id)
+777
+INSERT INTO t2 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+1554
+SELECT MAX(id) FROM t2;
+MAX(id)
+1554
+MASTER_1_AUTO_INCREMENT_OFFSET3
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+1555
+SELECT MAX(id) FROM t1;
+MAX(id)
+1555
+MASTER_1_AUTO_INCREMENT_OFFSET4
+INSERT INTO t2 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+2331
+SELECT MAX(id) FROM t2;
+MAX(id)
+2331
+MASTER_1_AUTO_INCREMENT_OFFSET3
+INSERT INTO t1 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+2332
+SELECT id FROM t1 ORDER BY id;
+id
+777
+1554
+1555
+2331
+2332
+3109
+3886
+4663
+MASTER_1_AUTO_INCREMENT_OFFSET4
+INSERT INTO t2 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+5439
+SELECT id FROM t2 ORDER BY id;
+id
+777
+1554
+1555
+2331
+2332
+3109
+3886
+4663
+5439
+6216
+6993
+7770
+TRUNCATE TABLE t1;
+TRUNCATE TABLE t2;
+INSERT INTO t1 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+777
+SELECT id FROM t1 ORDER BY id;
+id
+777
+1554
+2331
+3108
+INSERT INTO t2 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+3885
+SELECT id FROM t2 ORDER BY id;
+id
+777
+1554
+2331
+3108
+3885
+4662
+5439
+6216
+SET INSERT_ID=5000;
+MASTER_1_AUTO_INCREMENT_OFFSET3
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+5000
+SELECT MAX(id) FROM t1;
+MAX(id)
+6216
+MASTER_1_AUTO_INCREMENT_OFFSET4
+INSERT INTO t2 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+6993
+SELECT MAX(id) FROM t2;
+MAX(id)
+6993
+INSERT INTO t1 (id) VALUES (10000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+6993
+SELECT MAX(id) FROM t1;
+MAX(id)
+10000
+INSERT INTO t2 (id) VALUES (1000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+6993
+SELECT MAX(id) FROM t2;
+MAX(id)
+10000
+connection slave1_1;
+SELECT id FROM t1 ORDER BY id;
+id
+777
+1554
+2331
+3108
+5000
+10000
+connection master_1;
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection slave1_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for slave1_1
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/spider3_fixes_part.result b/storage/spider/mysql-test/spider/r/spider3_fixes_part.result
new file mode 100644
index 00000000..937f222f
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/spider3_fixes_part.result
@@ -0,0 +1,222 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for slave1_1
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection slave1_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+auto_increment with partition
+connection master_1;
+connection slave1_1;
+connection master_1;
+DROP TABLE IF EXISTS t1, t2;
+CREATE TABLE t1 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_P_1
+CREATE TABLE t2 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_P_1
+MASTER_1_AUTO_INCREMENT_INCREMENT2
+MASTER_1_AUTO_INCREMENT_OFFSET2
+spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 4', '',
+'srv "s_2_1"')
+1
+spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 4', '',
+'srv "s_2_2"')
+1
+spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 2', '',
+'srv "s_2_1"')
+1
+spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 3', '',
+'srv "s_2_2"')
+1
+CREATE TABLE t1 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_P_1
+CREATE TABLE t2 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_P_1
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+777
+SELECT MAX(id) FROM t1;
+MAX(id)
+777
+INSERT INTO t2 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+1554
+SELECT MAX(id) FROM t2;
+MAX(id)
+1554
+MASTER_1_AUTO_INCREMENT_OFFSET3
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+1555
+SELECT MAX(id) FROM t1;
+MAX(id)
+1555
+MASTER_1_AUTO_INCREMENT_OFFSET4
+INSERT INTO t2 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+2331
+SELECT MAX(id) FROM t2;
+MAX(id)
+2331
+MASTER_1_AUTO_INCREMENT_OFFSET3
+INSERT INTO t1 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+2332
+SELECT id FROM t1 ORDER BY id;
+id
+777
+1554
+1555
+2331
+2332
+3109
+3886
+4663
+MASTER_1_AUTO_INCREMENT_OFFSET4
+INSERT INTO t2 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+5439
+SELECT id FROM t2 ORDER BY id;
+id
+777
+1554
+1555
+2331
+2332
+3109
+3886
+4663
+5439
+6216
+6993
+7770
+TRUNCATE TABLE t1;
+TRUNCATE TABLE t2;
+INSERT INTO t1 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+777
+SELECT id FROM t1 ORDER BY id;
+id
+777
+1554
+2331
+3108
+INSERT INTO t2 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+3885
+SELECT id FROM t2 ORDER BY id;
+id
+777
+1554
+2331
+3108
+3885
+4662
+5439
+6216
+SET INSERT_ID=5000;
+MASTER_1_AUTO_INCREMENT_OFFSET3
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+5000
+SELECT MAX(id) FROM t1;
+MAX(id)
+6216
+MASTER_1_AUTO_INCREMENT_OFFSET4
+INSERT INTO t2 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+6993
+SELECT MAX(id) FROM t2;
+MAX(id)
+6993
+INSERT INTO t1 (id) VALUES (10000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+6993
+SELECT MAX(id) FROM t1;
+MAX(id)
+10000
+INSERT INTO t2 (id) VALUES (1000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+6993
+SELECT MAX(id) FROM t2;
+MAX(id)
+10000
+connection slave1_1;
+SELECT id FROM t1 ORDER BY id;
+id
+777
+1554
+2331
+3108
+5000
+10000
+connection master_1;
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection slave1_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for slave1_1
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/spider_fixes.result b/storage/spider/mysql-test/spider/r/spider_fixes.result
new file mode 100644
index 00000000..1db31ca9
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/spider_fixes.result
@@ -0,0 +1,610 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for slave1_1
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection slave1_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+
+create table and insert
+connection master_1;
+DROP TABLE IF EXISTS tb_l;
+CREATE TABLE tb_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+INSERT INTO tb_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+
+2.13
+select table with "order by desc" and "<"
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+WHERE a < 5 ORDER BY a DESC LIMIT 3;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+4	d	2003-11-30 05:01:03
+3	e	2007-06-04 20:03:11
+2	b	2000-01-01 00:00:00
+
+select table with "order by desc" and "<="
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+WHERE a <= 5 ORDER BY a DESC LIMIT 3;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+5	c	2001-12-31 23:59:59
+4	d	2003-11-30 05:01:03
+3	e	2007-06-04 20:03:11
+
+2.14
+update table with range scan and split_read
+connection master_1;
+UPDATE ta_l SET c = '2000-02-02 00:00:00' WHERE a > 1;
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-02-02 00:00:00
+3	e	2000-02-02 00:00:00
+4	d	2000-02-02 00:00:00
+5	c	2000-02-02 00:00:00
+
+2.15
+select table with range scan
+TRUNCATE TABLE ta_l;
+DROP TABLE IF EXISTS ta_l;
+connection master_1;
+CREATE TABLE ta_l (
+a int(11) NOT NULL DEFAULT '0',
+b char(1) DEFAULT NULL,
+c datetime DEFAULT NULL,
+PRIMARY KEY (a, b, c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT5_2_1
+INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b >= 'b'
+AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b > 'b'
+AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a >= 4 AND b = 'd'
+AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a > 4 AND b = 'c'
+AND c = '2001-12-31 23:59:59';
+a	b	c
+5	c	2001-12-31 23:59:59
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b <= 'd'
+AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b < 'e'
+AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a <= 4 AND b = 'b'
+AND c = '2000-01-01 00:00:00';
+a	b	c
+2	b	2000-01-01 00:00:00
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a < 4 AND b = 'b'
+AND c = '2000-01-01 00:00:00';
+a	b	c
+2	b	2000-01-01 00:00:00
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b >= 'b'
+AND b <= 'd' AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b > 'b'
+AND b < 'e' AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a <= 4 AND a >= 1
+AND b >= 'b' AND c = '2003-11-30 05:01:03';
+a	b	c
+4	d	2003-11-30 05:01:03
+connection master_1;
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a < 4 AND a > 1
+AND b >= 'b' AND c = '2000-01-01 00:00:00';
+a	b	c
+2	b	2000-01-01 00:00:00
+
+2.16
+auto_increment insert with trigger
+connection master_1;
+CREATE TABLE ta_l_auto_inc (
+a INT AUTO_INCREMENT,
+b CHAR(1) DEFAULT 'c',
+c DATETIME DEFAULT '1999-10-10 10:10:10',
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT3_2_1
+CREATE TABLE tc_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+CREATE TRIGGER ins_ta_l_auto_inc AFTER INSERT ON ta_l_auto_inc FOR EACH ROW BEGIN INSERT INTO tc_l (a, b, c) VALUES (NEW.a, NEW.b, NEW.c); END;;
+connection master_1;
+INSERT INTO ta_l_auto_inc (a, b, c) VALUES
+(NULL, 's', '2008-12-31 20:59:59');
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM tc_l ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	s	2008-12-31 20:59:59
+
+2.17
+engine-condition-pushdown with "or" and joining
+connection master_1;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l WHERE a = 1 OR a IN (SELECT a FROM tb_l);
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+2.23
+index merge
+connection master_1;
+CREATE TABLE ta_l_int (
+a INT AUTO_INCREMENT,
+b INT DEFAULT 10,
+c INT DEFAULT 11,
+PRIMARY KEY(a),
+KEY idx1(b),
+KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1
+INSERT INTO ta_l_int (a, b, c) VALUES (1, 2, 3);
+INSERT INTO ta_l_int (a, b, c) SELECT a + 1, b + 1, c + 1 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 2, b + 2, c + 2 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 4, b + 4, c + 4 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 8, b + 8, c + 8 FROM ta_l_int;
+connection master_1;
+SELECT a, b, c FROM ta_l_int force index(primary, idx1, idx2)
+WHERE a = 5 OR b = 5 OR c = 5 ORDER BY a;
+a	b	c
+3	4	5
+4	5	6
+5	6	7
+
+2.24
+index scan update without PK
+connection master_1;
+DROP TABLE IF EXISTS ta_l_int;
+CREATE TABLE ta_l_int (
+a INT NOT NULL,
+b INT DEFAULT 10,
+c INT DEFAULT 11,
+KEY idx1(b),
+KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1
+SELECT a, b, c FROM ta_l_int ORDER BY a;
+a	b	c
+1	2	3
+2	3	4
+3	4	5
+4	5	6
+5	6	7
+6	7	8
+7	8	9
+8	9	10
+9	10	11
+10	11	12
+11	12	13
+12	13	14
+13	14	15
+14	15	16
+15	16	17
+16	17	18
+INSERT INTO ta_l_int (a, b, c) VALUES (0, 2, 3);
+INSERT INTO ta_l_int (a, b, c) VALUES (18, 2, 3);
+connection master_1;
+UPDATE ta_l_int SET c = 4 WHERE b = 2;
+connection master_1;
+SELECT a, b, c FROM ta_l_int ORDER BY a;
+a	b	c
+1	2	4
+2	3	4
+3	4	5
+4	5	6
+5	6	7
+6	7	8
+7	8	9
+8	9	10
+9	10	11
+10	11	12
+11	12	13
+12	13	14
+13	14	15
+14	15	16
+15	16	17
+16	17	18
+17	2	4
+18	2	4
+
+2.25
+direct order limit
+connection master_1;
+SHOW STATUS LIKE 'Spider_direct_order_limit';
+Variable_name	Value
+Spider_direct_order_limit	2
+SELECT a, b, c FROM ta_l_int ORDER BY a LIMIT 3;
+a	b	c
+1	2	4
+2	3	4
+3	4	5
+SHOW STATUS LIKE 'Spider_direct_order_limit';
+Variable_name	Value
+Spider_direct_order_limit	3
+
+2.26
+lock tables
+connection master_1;
+DROP TABLE IF EXISTS t1;
+DROP TABLE IF EXISTS t2;
+CREATE TABLE t1 (
+id int(11) NOT NULL,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_LOCK1
+CREATE TABLE t2 (
+id int(11) NOT NULL,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_LOCK2
+LOCK TABLES t1 READ, t2 READ;
+UNLOCK TABLES;
+
+auto_increment
+connection master_1;
+connection slave1_1;
+connection master_1;
+DROP TABLE IF EXISTS t1;
+CREATE TABLE t1 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_1
+MASTER_1_AUTO_INCREMENT_INCREMENT2
+MASTER_1_AUTO_INCREMENT_OFFSET2
+spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 4', '',
+'srv "s_2_1"')
+1
+spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 4', '',
+'srv "s_2_2"')
+1
+spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 2', '',
+'srv "s_2_1"')
+1
+spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 3', '',
+'srv "s_2_2"')
+1
+CREATE TABLE t1 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_1
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+777
+SELECT MAX(id) FROM t1;
+MAX(id)
+777
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+1554
+SELECT MAX(id) FROM t1;
+MAX(id)
+1554
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+2331
+SELECT MAX(id) FROM t1;
+MAX(id)
+2331
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+3108
+SELECT MAX(id) FROM t1;
+MAX(id)
+3108
+INSERT INTO t1 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+3885
+SELECT id FROM t1 ORDER BY id;
+id
+777
+1554
+2331
+3108
+3885
+4662
+5439
+6216
+SET INSERT_ID=5000;
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+5000
+SELECT MAX(id) FROM t1;
+MAX(id)
+6216
+INSERT INTO t1 (id) VALUES (10000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+5000
+SELECT MAX(id) FROM t1;
+MAX(id)
+10000
+INSERT INTO t1 (id) VALUES (1000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+5000
+SELECT MAX(id) FROM t1;
+MAX(id)
+10000
+connection slave1_1;
+SELECT id FROM t1 ORDER BY id;
+id
+777
+1000
+1554
+2331
+3108
+3885
+4662
+5000
+5439
+6216
+10000
+connection master_1;
+
+read only
+connection master_1;
+DROP TABLE IF EXISTS t1;
+CREATE TABLE t1 (
+id int(11) NOT NULL,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_READONLY1_1
+SELECT id FROM t1 ORDER BY id;
+id
+777
+1000
+1554
+2331
+3108
+3885
+4662
+5000
+5439
+6216
+10000
+INSERT INTO t1 (id) VALUES (1);
+ERROR HY000: Table 'auto_test_local.t1' is read only
+UPDATE t1 SET id = 4 WHERE id = 777;
+ERROR HY000: Table 'auto_test_local.t1' is read only
+DELETE FROM t1 WHERE id = 777;
+ERROR HY000: Table 'auto_test_local.t1' is read only
+DELETE FROM t1;
+ERROR HY000: Table 'auto_test_local.t1' is read only
+TRUNCATE t1;
+ERROR HY000: Table 'auto_test_local.t1' is read only
+
+2.27
+error mode
+connection master_1;
+DROP TABLE IF EXISTS t1;
+CREATE TABLE t1 (
+id int(11) NOT NULL,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_ERROR_MODE1_1
+SELECT id FROM t1 ORDER BY id;
+id
+Warnings:
+Error	12702	Remote table 'auto_test_remote.ter1_1' is not found
+Error	1146	Table 'auto_test_remote.ter1_1' doesn't exist
+INSERT INTO t1 (id) VALUES (1);
+Warnings:
+Error	1146	Table 'auto_test_remote.ter1_1' doesn't exist
+DELETE FROM t1;
+Warnings:
+Error	12702	Remote table 'auto_test_remote.ter1_1' is not found
+Error	12702	Remote table 'auto_test_remote.ter1_1' is not found
+Error	1146	Table 'auto_test_remote.ter1_1' doesn't exist
+TRUNCATE t1;
+Warnings:
+Error	1146	Table 'auto_test_remote.ter1_1' doesn't exist
+
+3.0
+is null
+connection master_1;
+DROP TABLE IF EXISTS t1;
+CREATE TABLE t1 (
+a VARCHAR(255),
+b VARCHAR(255),
+c VARCHAR(255),
+KEY idx1(a,b),
+KEY idx2(b),
+PRIMARY KEY(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_TEXT_KEY1_1
+insert into t1 values (null, null, '2048');
+insert into t1 values ('1', '1', '1');
+insert into t1 select a + 1,   b + 1,   c + 1   from t1;
+insert into t1 select a + 2,   b + 2,   c + 2   from t1;
+insert into t1 select a + 4,   b + 4,   c + 4   from t1;
+insert into t1 select a + 8,   b + 8,   c + 8   from t1;
+insert into t1 select a + 16,  b + 16,  c + 16  from t1;
+insert into t1 select a + 32,  b + 32,  c + 32  from t1;
+insert into t1 select a + 64,  b + 64,  c + 64  from t1;
+insert into t1 select a + 128, b + 128, c + 128 from t1;
+insert into t1 select a + 256, b + 256, c + 256 from t1;
+insert into t1 select a + 512, b + 512, c + 512 from t1;
+flush tables;
+connection master_1;
+select a from t1 where a is null order by a limit 30;
+a
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+select b from t1 where b is null order by b limit 30;
+b
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+NULL
+
+direct_order_limit
+connection master_1;
+TRUNCATE TABLE t1;
+insert into t1 values ('1', '1', '1');
+insert into t1 select a + 1,   b + 1,   c + 1   from t1;
+insert into t1 select a + 2,   b + 2,   c + 2   from t1;
+insert into t1 select a + 4,   b + 4,   c + 4   from t1;
+insert into t1 select a + 8,   b + 8,   c + 8   from t1;
+insert into t1 select a + 16,  b + 16,  c + 16  from t1;
+insert into t1 select a,       b + 32,  c + 32  from t1;
+insert into t1 select a,       b + 64,  c + 64  from t1;
+insert into t1 select a,       b + 128, c + 128 from t1;
+flush tables;
+connection master_1;
+select a, b, c from t1 where a = '10' and b <> '100' order by c desc limit 5;
+a	b	c
+10	74	74
+10	42	42
+10	234	234
+10	202	202
+10	170	170
+select a, c from t1 where a = '10' order by b desc limit 5;
+a	c
+10	74
+10	42
+10	234
+10	202
+10	170
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection slave1_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for slave1_1
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/spider_fixes_part.result b/storage/spider/mysql-test/spider/r/spider_fixes_part.result
new file mode 100644
index 00000000..571af94c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/spider_fixes_part.result
@@ -0,0 +1,351 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+for slave1_1
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection slave1_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+connection master_1;
+DROP TABLE IF EXISTS tb_l;
+CREATE TABLE tb_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+INSERT INTO tb_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+
+2.17
+partition with sort
+connection master_1;
+CREATE TABLE ta_l2 (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1
+INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 WHERE a > 1
+ORDER BY a;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+2.23
+partition update with moving partition
+connection master_1;
+DROP TABLE IF EXISTS ta_l2;
+connection master_1;
+CREATE TABLE ta_l2 (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1
+INSERT INTO ta_l2 (a, b, c) VALUES (3, 'B', '2010-09-26 00:00:00');
+UPDATE ta_l2 SET a = 4 WHERE a = 3;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2;
+a	b	date_format(c, '%Y-%m-%d %H:%i:%s')
+4	B	2010-09-26 00:00:00
+index merge with partition
+connection master_1;
+DROP TABLE IF EXISTS ta_l_int;
+connection master_1;
+CREATE TABLE ta_l_int (
+a INT AUTO_INCREMENT,
+b INT DEFAULT 10,
+c INT DEFAULT 11,
+PRIMARY KEY(a),
+KEY idx1(b),
+KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT3_P_2_1
+INSERT INTO ta_l_int (a, b, c) VALUES (1, 2, 3);
+INSERT INTO ta_l_int (a, b, c) SELECT a + 1, b + 1, c + 1 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 2, b + 2, c + 2 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 4, b + 4, c + 4 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 8, b + 8, c + 8 FROM ta_l_int;
+connection master_1;
+SELECT a, b, c FROM ta_l_int force index(primary, idx1, idx2)
+WHERE a = 5 OR b = 5 OR c = 5 ORDER BY a;
+a	b	c
+3	4	5
+4	5	6
+5	6	7
+
+2.26
+auto_increment with partition
+connection master_1;
+connection slave1_1;
+connection master_1;
+DROP TABLE IF EXISTS t1;
+CREATE TABLE t1 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_P_1
+MASTER_1_AUTO_INCREMENT_INCREMENT2
+MASTER_1_AUTO_INCREMENT_OFFSET2
+spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 4', '',
+'srv "s_2_1"')
+1
+spider_direct_sql('SET SESSION AUTO_INCREMENT_INCREMENT = 4', '',
+'srv "s_2_2"')
+1
+spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 2', '',
+'srv "s_2_1"')
+1
+spider_bg_direct_sql('SET SESSION AUTO_INCREMENT_OFFSET = 3', '',
+'srv "s_2_2"')
+1
+CREATE TABLE t1 (
+id int(11) NOT NULL AUTO_INCREMENT,
+PRIMARY KEY (id)
+) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_P_1
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+777
+SELECT MAX(id) FROM t1;
+MAX(id)
+777
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+1554
+SELECT MAX(id) FROM t1;
+MAX(id)
+1554
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+2331
+SELECT MAX(id) FROM t1;
+MAX(id)
+2331
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+3108
+SELECT MAX(id) FROM t1;
+MAX(id)
+3108
+INSERT INTO t1 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+3885
+SELECT id FROM t1 ORDER BY id;
+id
+777
+1554
+2331
+3108
+3885
+4662
+5439
+6216
+SET INSERT_ID=5000;
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+5000
+SELECT MAX(id) FROM t1;
+MAX(id)
+6216
+INSERT INTO t1 (id) VALUES (10000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+5000
+SELECT MAX(id) FROM t1;
+MAX(id)
+10000
+INSERT INTO t1 (id) VALUES (1000);
+SELECT LAST_INSERT_ID();
+LAST_INSERT_ID()
+5000
+SELECT MAX(id) FROM t1;
+MAX(id)
+10000
+connection slave1_1;
+SELECT id FROM t1 ORDER BY id;
+id
+777
+1000
+1554
+2331
+3108
+3885
+4662
+5000
+5439
+6216
+10000
+connection master_1;
+
+Test ORDER BY with LIMIT and OFFSET
+connection master_1;
+CREATE TABLE ta_ob (
+a VARCHAR(50) NOT NULL,
+b VARCHAR(50) NULL DEFAULT NULL,
+c VARCHAR(100) NULL DEFAULT NULL,
+d DATETIME(0) NULL DEFAULT NULL,
+e INT(11) NOT NULL,
+f INT(10) NULL DEFAULT NULL,
+PRIMARY KEY (a, e)
+) ENGINE=Spider COMMENT='database "auto_test_remote", table "ta_ob"'
+  PARTITION BY LIST COLUMNS (e) PARTITIONS 1
+(PARTITION pt1 values in (510411) COMMENT = 'srv "s_2_1"')
+INSERT INTO ta_ob VALUES ('0B95CD65DF994BC9A09A6AABE53A2733',
+'6CFED89FF6A84C7AA55C3C432663D094',
+'51041110620304', '2018-08-02 13:41:13',
+510411, 1);
+INSERT INTO ta_ob VALUES ('15E8D55EF099443BAEE639E60A4650BD',
+'879DC2A0B6AC46D9A62E8EA47E2970F2',
+'51041110620301', NULL,
+510411, 0);
+INSERT INTO ta_ob VALUES ('51ECF2C0CD3C48D99C91792E99D3C1A0',
+'017B8A460DBC444682B791305EF75356',
+'51041110620308', '2018-08-02 13:48:29',
+510411, 0);
+INSERT INTO ta_ob VALUES ('093B37A93A534DF883787AF5F6799674',
+'996C7F14989D480589A553717D735E3E',
+'51041110620302', '2018-08-02 13:48:30',
+510411, 0);
+INSERT INTO ta_ob VALUES ('53F5266FB069499AB6234755CACA2583',
+'017B8A460DBC444682B791305EF75356',
+'51041110620308', '2018-08-02 13:48:28',
+510411, 0);
+INSERT INTO ta_ob VALUES ('56E59BC4BDC143868D4A219C2D07A24B',
+'821E71E6ABB4404EBAA349BB681089F8',
+'51041110620310', '2018-08-02 13:48:27',
+510411, 0);
+INSERT INTO ta_ob VALUES ('56B68DA68D6D4A04A08B453D09AD7B70',
+'821E71E6ABB4404EBAA349BB681089F8',
+'51041110620310', '2018-08-02 13:48:28',
+510411, 0);
+SELECT * FROM ta_ob WHERE c LIKE "%510411106%" AND e = 510411 AND f != 1 ORDER BY d,c LIMIT 5 OFFSET 1;
+a	b	c	d	e	f
+56E59BC4BDC143868D4A219C2D07A24B	821E71E6ABB4404EBAA349BB681089F8	51041110620310	2018-08-02 13:48:27	510411	0
+53F5266FB069499AB6234755CACA2583	017B8A460DBC444682B791305EF75356	51041110620308	2018-08-02 13:48:28	510411	0
+56B68DA68D6D4A04A08B453D09AD7B70	821E71E6ABB4404EBAA349BB681089F8	51041110620310	2018-08-02 13:48:28	510411	0
+51ECF2C0CD3C48D99C91792E99D3C1A0	017B8A460DBC444682B791305EF75356	51041110620308	2018-08-02 13:48:29	510411	0
+093B37A93A534DF883787AF5F6799674	996C7F14989D480589A553717D735E3E	51041110620302	2018-08-02 13:48:30	510411	0
+#
+# MDEV-25985 Spider handle ">=" as ">" in some cases
+#
+connection child2_1;
+DROP TABLE IF EXISTS t1;
+CREATE TABLE t1 (
+a int,
+b int,
+c int,
+PRIMARY KEY (a),
+KEY (b,c)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+INSERT INTO t1 VALUES (1, 1, 1), (2, 2, 1);
+connection master_1;
+DROP TABLE IF EXISTS t1;
+CREATE TABLE t1 (
+a int,
+b int,
+c int,
+PRIMARY KEY (a),
+KEY (b,c)
+) ENGINE=Spider DEFAULT CHARSET=utf8 COMMENT='table "t1"'
+  PARTITION BY LIST COLUMNS(`a`) (
+PARTITION `pt1` DEFAULT COMMENT = 'srv "s_2_1"'
+  );
+connection master_1;
+SELECT * FROM t1 WHERE c > 0 AND b >= 1 AND b <= 2;
+a	b	c
+1	1	1
+2	2	1
+SELECT * FROM t1 WHERE c < 3 AND b <= 2;
+a	b	c
+1	1	1
+2	2	1
+
+Crash from b4a2baffa82e5c07b96a1c752228560dcac1359b (MDEV-11084)
+Fixed with 4968049799193394d442f26b4e3a8d95b185be72
+Spider crashed if the first partition was not used first
+connection master_1;
+CREATE TABLE ta_l2 (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1
+INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+Query a Spider table only using the second partition
+SELECT a,b,c FROM ta_l2 PARTITION (pt2);
+a	b	c
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+Query a Spider table only using the first partition
+SELECT a,b,c FROM ta_l2 PARTITION (pt1);
+a	b	c
+1	a	2008-08-01 10:21:39
+2	b	2000-01-01 00:00:00
+3	e	2007-06-04 20:03:11
+Query a Spider table by all paritions, then the second partition
+SELECT min(a), max(a), min(b), max(b) FROM ta_l2;
+min(a)	max(a)	min(b)	max(b)
+1	5	a	e
+SELECT a,b,c FROM ta_l2 PARTITION (pt2);
+a	b	c
+4	d	2003-11-30 05:01:03
+5	c	2001-12-31 23:59:59
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection slave1_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for slave1_1
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/spider_wrapper_protocols.result b/storage/spider/mysql-test/spider/r/spider_wrapper_protocols.result
new file mode 100644
index 00000000..f1a7b620
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/spider_wrapper_protocols.result
@@ -0,0 +1,22 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+connection master_1;
+SELECT * FROM information_schema.spider_wrapper_protocols;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/timestamp.result b/storage/spider/mysql-test/spider/r/timestamp.result
new file mode 100644
index 00000000..2993c08c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/timestamp.result
@@ -0,0 +1,431 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+Initialize Time Zone
+connection master_1;
+SET GLOBAL time_zone='MET';
+SET time_zone='MET';
+connection child2_1;
+SET GLOBAL time_zone='MET';
+SET time_zone='MET';
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS ts_test_local;
+CREATE DATABASE ts_test_local;
+USE ts_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+DROP DATABASE IF EXISTS ts_test_remote;
+CREATE DATABASE ts_test_remote;
+USE ts_test_remote;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+connection child2_1;
+SELECT 1;
+1
+1
+
+create table
+connection child2_1;
+CHILD2_1_DROP_TABLE
+CHILD2_1_DROP_TABLE_F
+CHILD2_1_CREATE_TABLE
+CHILD2_1_CREATE_TABLE_F
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+DROP TABLE IF EXISTS tbl_a;
+CREATE TABLE tbl_a (
+col_a INT UNSIGNED NOT NULL AUTO_INCREMENT,
+col_dt DATETIME,
+col_ts TIMESTAMP NOT NULL
+DEFAULT current_timestamp() ON UPDATE current_timestamp(),
+PRIMARY KEY(col_a),
+UNIQUE INDEX i_ts (col_ts)
+) MASTER_1_ENGINE MASTER_1_AUTO_INCREMENT_2_1 MASTER_1_COMMENT_2_1
+CREATE TABLE tbl_f (
+col_d DATE,
+col_t TIME
+) ENGINE=Spider COMMENT='database "ts_test_remote", table "tbl_f", srv "s_2_1"'
+SHOW CREATE TABLE tbl_a;
+Table	Create Table
+tbl_a	CREATE TABLE `tbl_a` (
+  `col_a` int(10) unsigned NOT NULL AUTO_INCREMENT,
+  `col_dt` datetime DEFAULT NULL,
+  `col_ts` timestamp NOT NULL DEFAULT current_timestamp() ON UPDATE current_timestamp(),
+  PRIMARY KEY (`col_a`),
+  UNIQUE KEY `i_ts` (`col_ts`)
+) ENGINE=SPIDER AUTO_INCREMENT=17 DEFAULT CHARSET=utf8mb4 COMMENT='database "ts_test_remote", table "tbl_a", srv "s_2_1"'
+SHOW CREATE TABLE tbl_f;
+Table	Create Table
+tbl_f	CREATE TABLE `tbl_f` (
+  `col_d` date DEFAULT NULL,
+  `col_t` time DEFAULT NULL
+) ENGINE=SPIDER DEFAULT CHARSET=latin1 COMMENT='database "ts_test_remote", table "tbl_f", srv "s_2_1"'
+
+Set a different time zone that has DST
+SET time_zone='+01:00';
+
+Insert Rows
+connection master_1;
+Min value
+SET @@timestamp=1;
+INSERT INTO tbl_a VALUES (1, now(), now());
+SET @@timestamp=0;
+Ambiguous DST values for MET time zone that result in the
+same UTC timestamp
+INSERT INTO tbl_a VALUES (2, '2018-03-25 02:00:00', '2018-03-25 02:00:00');
+INSERT INTO tbl_a VALUES (3, '2018-03-25 02:30:00', '2018-03-25 02:30:00');
+Ambiguous DST values for MET time zone in the 2:00 am to 3:00 am hour
+that occur twice when transitioning from DST to standard time
+SET @@timestamp=1540686600;
+INSERT INTO tbl_a VALUES (4, now(), now());
+SET @@timestamp=1540690200;
+INSERT INTO tbl_a VALUES (5, now(), now());
+Max value
+SET @@timestamp=2147483647;
+INSERT INTO tbl_a VALUES (6, now(), now());
+SET @@timestamp=0;
+
+SELECTs
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT *, unix_timestamp(col_ts) FROM tbl_a;
+col_a	col_dt	col_ts	unix_timestamp(col_ts)
+1	1970-01-01 01:00:01	1970-01-01 01:00:01	1
+2	2018-03-25 02:00:00	2018-03-25 02:00:00	1521939600
+3	2018-03-25 02:30:00	2018-03-25 02:30:00	1521941400
+4	2018-10-28 01:30:00	2018-10-28 01:30:00	1540686600
+5	2018-10-28 02:30:00	2018-10-28 02:30:00	1540690200
+6	2038-01-19 04:14:07	2038-01-19 04:14:07	2147483647
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select t0.`col_a` `col_a`,t0.`col_dt` `col_dt`,t0.`col_ts` `col_ts`,(unix_timestamp(t0.`col_ts`)) `unix_timestamp(col_ts)` from `ts_test_remote`.`tbl_a` t0
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT col_a, col_dt, col_ts, unix_timestamp(col_ts) FROM tbl_a ORDER BY col_a;
+col_a	col_dt	col_ts	unix_timestamp(col_ts)
+1	1970-01-01 01:00:01	1970-01-01 01:00:01	1
+2	2018-03-25 02:00:00	2018-03-25 03:00:00	1521939600
+3	2018-03-25 02:30:00	2018-03-25 03:30:00	1521941400
+4	2018-10-28 01:30:00	2018-10-28 02:30:00	1540686600
+5	2018-10-28 02:30:00	2018-10-28 02:30:00	1540690200
+6	2038-01-19 04:14:07	2038-01-19 04:14:07	2147483647
+
+DELETEs
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+DELETE FROM tbl_a WHERE col_ts='1970-01-01 01:00:01';
+SELECT *, unix_timestamp(col_ts) FROM tbl_a;
+col_a	col_dt	col_ts	unix_timestamp(col_ts)
+2	2018-03-25 02:00:00	2018-03-25 02:00:00	1521939600
+3	2018-03-25 02:30:00	2018-03-25 02:30:00	1521941400
+4	2018-10-28 01:30:00	2018-10-28 01:30:00	1540686600
+5	2018-10-28 02:30:00	2018-10-28 02:30:00	1540690200
+6	2038-01-19 04:14:07	2038-01-19 04:14:07	2147483647
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select t0.`col_a` `col_a`,t0.`col_dt` `col_dt`,t0.`col_ts` `col_ts`,(unix_timestamp(t0.`col_ts`)) `unix_timestamp(col_ts)` from `ts_test_remote`.`tbl_a` t0
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT col_a, col_dt, col_ts, unix_timestamp(col_ts) FROM tbl_a ORDER BY col_a;
+col_a	col_dt	col_ts	unix_timestamp(col_ts)
+2	2018-03-25 02:00:00	2018-03-25 03:00:00	1521939600
+3	2018-03-25 02:30:00	2018-03-25 03:30:00	1521941400
+4	2018-10-28 01:30:00	2018-10-28 02:30:00	1540686600
+5	2018-10-28 02:30:00	2018-10-28 02:30:00	1540690200
+6	2038-01-19 04:14:07	2038-01-19 04:14:07	2147483647
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SET @@timestamp=1;
+INSERT INTO tbl_a VALUES (1, now(), now());
+SET @@timestamp=0;
+SELECT *, unix_timestamp(col_ts) FROM tbl_a;
+col_a	col_dt	col_ts	unix_timestamp(col_ts)
+1	1970-01-01 01:00:01	1970-01-01 01:00:01	1
+2	2018-03-25 02:00:00	2018-03-25 02:00:00	1521939600
+3	2018-03-25 02:30:00	2018-03-25 02:30:00	1521941400
+4	2018-10-28 01:30:00	2018-10-28 01:30:00	1540686600
+5	2018-10-28 02:30:00	2018-10-28 02:30:00	1540690200
+6	2038-01-19 04:14:07	2038-01-19 04:14:07	2147483647
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select t0.`col_a` `col_a`,t0.`col_dt` `col_dt`,t0.`col_ts` `col_ts`,(unix_timestamp(t0.`col_ts`)) `unix_timestamp(col_ts)` from `ts_test_remote`.`tbl_a` t0
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT col_a, col_dt, col_ts, unix_timestamp(col_ts) FROM tbl_a ORDER BY col_a;
+col_a	col_dt	col_ts	unix_timestamp(col_ts)
+1	1970-01-01 01:00:01	1970-01-01 01:00:01	1
+2	2018-03-25 02:00:00	2018-03-25 03:00:00	1521939600
+3	2018-03-25 02:30:00	2018-03-25 03:30:00	1521941400
+4	2018-10-28 01:30:00	2018-10-28 02:30:00	1540686600
+5	2018-10-28 02:30:00	2018-10-28 02:30:00	1540690200
+6	2038-01-19 04:14:07	2038-01-19 04:14:07	2147483647
+
+UPDATEs
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+UPDATE tbl_a SET col_ts=col_dt;
+SELECT *, unix_timestamp(col_ts) FROM tbl_a;
+col_a	col_dt	col_ts	unix_timestamp(col_ts)
+1	1970-01-01 01:00:01	1970-01-01 01:00:01	1
+2	2018-03-25 02:00:00	2018-03-25 02:00:00	1521939600
+3	2018-03-25 02:30:00	2018-03-25 02:30:00	1521941400
+4	2018-10-28 01:30:00	2018-10-28 01:30:00	1540686600
+5	2018-10-28 02:30:00	2018-10-28 02:30:00	1540690200
+6	2038-01-19 04:14:07	2038-01-19 04:14:07	2147483647
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select `col_a`,`col_dt`,`col_ts` from `ts_test_remote`.`tbl_a` for update
+select t0.`col_a` `col_a`,t0.`col_dt` `col_dt`,t0.`col_ts` `col_ts`,(unix_timestamp(t0.`col_ts`)) `unix_timestamp(col_ts)` from `ts_test_remote`.`tbl_a` t0
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT col_a, col_dt, col_ts, unix_timestamp(col_ts) FROM tbl_a ORDER BY col_a;
+col_a	col_dt	col_ts	unix_timestamp(col_ts)
+1	1970-01-01 01:00:01	1970-01-01 01:00:01	1
+2	2018-03-25 02:00:00	2018-03-25 03:00:00	1521939600
+3	2018-03-25 02:30:00	2018-03-25 03:30:00	1521941400
+4	2018-10-28 01:30:00	2018-10-28 02:30:00	1540686600
+5	2018-10-28 02:30:00	2018-10-28 02:30:00	1540690200
+6	2038-01-19 04:14:07	2038-01-19 04:14:07	2147483647
+
+Lookups
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT *, unix_timestamp(col_ts) FROM tbl_a WHERE col_ts > '2018-01-01';
+col_a	col_dt	col_ts	unix_timestamp(col_ts)
+2	2018-03-25 02:00:00	2018-03-25 02:00:00	1521939600
+3	2018-03-25 02:30:00	2018-03-25 02:30:00	1521941400
+4	2018-10-28 01:30:00	2018-10-28 01:30:00	1540686600
+5	2018-10-28 02:30:00	2018-10-28 02:30:00	1540690200
+6	2038-01-19 04:14:07	2038-01-19 04:14:07	2147483647
+SELECT *, unix_timestamp(col_ts) FROM tbl_a WHERE col_ts < '2018-10-28 02:30:00';
+col_a	col_dt	col_ts	unix_timestamp(col_ts)
+1	1970-01-01 01:00:01	1970-01-01 01:00:01	1
+2	2018-03-25 02:00:00	2018-03-25 02:00:00	1521939600
+3	2018-03-25 02:30:00	2018-03-25 02:30:00	1521941400
+4	2018-10-28 01:30:00	2018-10-28 01:30:00	1540686600
+SELECT *, unix_timestamp(col_ts) FROM tbl_a WHERE '2018-10-28 02:30:00' > col_ts;
+col_a	col_dt	col_ts	unix_timestamp(col_ts)
+1	1970-01-01 01:00:01	1970-01-01 01:00:01	1
+2	2018-03-25 02:00:00	2018-03-25 02:00:00	1521939600
+3	2018-03-25 02:30:00	2018-03-25 02:30:00	1521941400
+4	2018-10-28 01:30:00	2018-10-28 01:30:00	1540686600
+SELECT *, unix_timestamp(col_ts) FROM tbl_a WHERE col_ts BETWEEN '2018-10-28 01:30:00' AND '2018-10-28 02:30:00';
+col_a	col_dt	col_ts	unix_timestamp(col_ts)
+4	2018-10-28 01:30:00	2018-10-28 01:30:00	1540686600
+5	2018-10-28 02:30:00	2018-10-28 02:30:00	1540690200
+SELECT *, unix_timestamp(col_ts) FROM tbl_a WHERE col_ts >= '2018-10-28 01:30:00' AND col_ts <= '2018-10-28 02:30:00';
+col_a	col_dt	col_ts	unix_timestamp(col_ts)
+4	2018-10-28 01:30:00	2018-10-28 01:30:00	1540686600
+5	2018-10-28 02:30:00	2018-10-28 02:30:00	1540690200
+SELECT *, unix_timestamp(col_ts) FROM tbl_a WHERE col_ts > 180325020000;
+col_a	col_dt	col_ts	unix_timestamp(col_ts)
+3	2018-03-25 02:30:00	2018-03-25 02:30:00	1521941400
+4	2018-10-28 01:30:00	2018-10-28 01:30:00	1540686600
+5	2018-10-28 02:30:00	2018-10-28 02:30:00	1540690200
+6	2038-01-19 04:14:07	2038-01-19 04:14:07	2147483647
+SELECT *, unix_timestamp(col_ts) FROM tbl_a WHERE col_ts > 19700101010001;
+col_a	col_dt	col_ts	unix_timestamp(col_ts)
+2	2018-03-25 02:00:00	2018-03-25 02:00:00	1521939600
+3	2018-03-25 02:30:00	2018-03-25 02:30:00	1521941400
+4	2018-10-28 01:30:00	2018-10-28 01:30:00	1540686600
+5	2018-10-28 02:30:00	2018-10-28 02:30:00	1540690200
+6	2038-01-19 04:14:07	2038-01-19 04:14:07	2147483647
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select t0.`col_a` `col_a`,t0.`col_dt` `col_dt`,t0.`col_ts` `col_ts`,(unix_timestamp(t0.`col_ts`)) `unix_timestamp(col_ts)` from `ts_test_remote`.`tbl_a` t0 where (t0.`col_ts` > _latin1'2017-12-31 23:00:00')
+select t0.`col_a` `col_a`,t0.`col_dt` `col_dt`,t0.`col_ts` `col_ts`,(unix_timestamp(t0.`col_ts`)) `unix_timestamp(col_ts)` from `ts_test_remote`.`tbl_a` t0 where (t0.`col_ts` < _latin1'2018-10-28 01:30:00')
+select t0.`col_a` `col_a`,t0.`col_dt` `col_dt`,t0.`col_ts` `col_ts`,(unix_timestamp(t0.`col_ts`)) `unix_timestamp(col_ts)` from `ts_test_remote`.`tbl_a` t0 where (_latin1'2018-10-28 01:30:00' > t0.`col_ts`)
+select t0.`col_a` `col_a`,t0.`col_dt` `col_dt`,t0.`col_ts` `col_ts`,(unix_timestamp(t0.`col_ts`)) `unix_timestamp(col_ts)` from `ts_test_remote`.`tbl_a` t0 where (t0.`col_ts` between _latin1'2018-10-28 00:30:00'  and  _latin1'2018-10-28 01:30:00')
+select t0.`col_a` `col_a`,t0.`col_dt` `col_dt`,t0.`col_ts` `col_ts`,(unix_timestamp(t0.`col_ts`)) `unix_timestamp(col_ts)` from `ts_test_remote`.`tbl_a` t0 where ((t0.`col_ts` >= _latin1'2018-10-28 00:30:00') and (t0.`col_ts` <= _latin1'2018-10-28 01:30:00'))
+select t0.`col_a` `col_a`,t0.`col_dt` `col_dt`,t0.`col_ts` `col_ts`,(unix_timestamp(t0.`col_ts`)) `unix_timestamp(col_ts)` from `ts_test_remote`.`tbl_a` t0 where (t0.`col_ts` > '2018-03-25 01:00:00')
+select t0.`col_a` `col_a`,t0.`col_dt` `col_dt`,t0.`col_ts` `col_ts`,(unix_timestamp(t0.`col_ts`)) `unix_timestamp(col_ts)` from `ts_test_remote`.`tbl_a` t0 where (t0.`col_ts` > '1970-01-01 00:00:01')
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT col_a, col_dt, col_ts, unix_timestamp(col_ts) FROM tbl_a ORDER BY col_a;
+col_a	col_dt	col_ts	unix_timestamp(col_ts)
+1	1970-01-01 01:00:01	1970-01-01 01:00:01	1
+2	2018-03-25 02:00:00	2018-03-25 03:00:00	1521939600
+3	2018-03-25 02:30:00	2018-03-25 03:30:00	1521941400
+4	2018-10-28 01:30:00	2018-10-28 02:30:00	1540686600
+5	2018-10-28 02:30:00	2018-10-28 02:30:00	1540690200
+6	2038-01-19 04:14:07	2038-01-19 04:14:07	2147483647
+
+Drop the index on the timestamp column
+connection child2_1;
+DROP INDEX i_ts ON tbl_a;
+SHOW CREATE TABLE tbl_a;
+Table	Create Table
+tbl_a	CREATE TABLE `tbl_a` (
+  `col_a` int(10) unsigned NOT NULL AUTO_INCREMENT,
+  `col_dt` datetime DEFAULT NULL,
+  `col_ts` timestamp NOT NULL DEFAULT current_timestamp() ON UPDATE current_timestamp(),
+  PRIMARY KEY (`col_a`)
+) ENGINE=InnoDB AUTO_INCREMENT=17 DEFAULT CHARSET=utf8mb4
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+DROP INDEX i_ts ON tbl_a;
+SHOW CREATE TABLE tbl_a;
+Table	Create Table
+tbl_a	CREATE TABLE `tbl_a` (
+  `col_a` int(10) unsigned NOT NULL AUTO_INCREMENT,
+  `col_dt` datetime DEFAULT NULL,
+  `col_ts` timestamp NOT NULL DEFAULT current_timestamp() ON UPDATE current_timestamp(),
+  PRIMARY KEY (`col_a`)
+) ENGINE=SPIDER AUTO_INCREMENT=17 DEFAULT CHARSET=utf8mb4 COMMENT='database "ts_test_remote", table "tbl_a", srv "s_2_1"'
+
+Retry lookups on unindexed timestamp column
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT *, unix_timestamp(col_ts) FROM tbl_a WHERE col_ts > '2018-01-01';
+col_a	col_dt	col_ts	unix_timestamp(col_ts)
+2	2018-03-25 02:00:00	2018-03-25 02:00:00	1521939600
+3	2018-03-25 02:30:00	2018-03-25 02:30:00	1521941400
+4	2018-10-28 01:30:00	2018-10-28 01:30:00	1540686600
+5	2018-10-28 02:30:00	2018-10-28 02:30:00	1540690200
+6	2038-01-19 04:14:07	2038-01-19 04:14:07	2147483647
+SELECT *, unix_timestamp(col_ts) FROM tbl_a WHERE col_ts < '2018-10-28 02:30:00';
+col_a	col_dt	col_ts	unix_timestamp(col_ts)
+1	1970-01-01 01:00:01	1970-01-01 01:00:01	1
+2	2018-03-25 02:00:00	2018-03-25 02:00:00	1521939600
+3	2018-03-25 02:30:00	2018-03-25 02:30:00	1521941400
+4	2018-10-28 01:30:00	2018-10-28 01:30:00	1540686600
+SELECT *, unix_timestamp(col_ts) FROM tbl_a WHERE '2018-10-28 02:30:00' > col_ts;
+col_a	col_dt	col_ts	unix_timestamp(col_ts)
+1	1970-01-01 01:00:01	1970-01-01 01:00:01	1
+2	2018-03-25 02:00:00	2018-03-25 02:00:00	1521939600
+3	2018-03-25 02:30:00	2018-03-25 02:30:00	1521941400
+4	2018-10-28 01:30:00	2018-10-28 01:30:00	1540686600
+SELECT *, unix_timestamp(col_ts) FROM tbl_a WHERE col_ts BETWEEN '2018-10-28 01:30:00' AND '2018-10-28 02:30:00';
+col_a	col_dt	col_ts	unix_timestamp(col_ts)
+4	2018-10-28 01:30:00	2018-10-28 01:30:00	1540686600
+5	2018-10-28 02:30:00	2018-10-28 02:30:00	1540690200
+SELECT *, unix_timestamp(col_ts) FROM tbl_a WHERE col_ts >= '2018-10-28 01:30:00' AND col_ts <= '2018-10-28 02:30:00';
+col_a	col_dt	col_ts	unix_timestamp(col_ts)
+4	2018-10-28 01:30:00	2018-10-28 01:30:00	1540686600
+5	2018-10-28 02:30:00	2018-10-28 02:30:00	1540690200
+SELECT *, unix_timestamp(col_ts) FROM tbl_a WHERE col_ts > 180325020000;
+col_a	col_dt	col_ts	unix_timestamp(col_ts)
+3	2018-03-25 02:30:00	2018-03-25 02:30:00	1521941400
+4	2018-10-28 01:30:00	2018-10-28 01:30:00	1540686600
+5	2018-10-28 02:30:00	2018-10-28 02:30:00	1540690200
+6	2038-01-19 04:14:07	2038-01-19 04:14:07	2147483647
+SELECT *, unix_timestamp(col_ts) FROM tbl_a WHERE col_ts > 19700101010001;
+col_a	col_dt	col_ts	unix_timestamp(col_ts)
+2	2018-03-25 02:00:00	2018-03-25 02:00:00	1521939600
+3	2018-03-25 02:30:00	2018-03-25 02:30:00	1521941400
+4	2018-10-28 01:30:00	2018-10-28 01:30:00	1540686600
+5	2018-10-28 02:30:00	2018-10-28 02:30:00	1540690200
+6	2038-01-19 04:14:07	2038-01-19 04:14:07	2147483647
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select t0.`col_a` `col_a`,t0.`col_dt` `col_dt`,t0.`col_ts` `col_ts`,(unix_timestamp(t0.`col_ts`)) `unix_timestamp(col_ts)` from `ts_test_remote`.`tbl_a` t0 where (t0.`col_ts` > _latin1'2017-12-31 23:00:00')
+select t0.`col_a` `col_a`,t0.`col_dt` `col_dt`,t0.`col_ts` `col_ts`,(unix_timestamp(t0.`col_ts`)) `unix_timestamp(col_ts)` from `ts_test_remote`.`tbl_a` t0 where (t0.`col_ts` < _latin1'2018-10-28 01:30:00')
+select t0.`col_a` `col_a`,t0.`col_dt` `col_dt`,t0.`col_ts` `col_ts`,(unix_timestamp(t0.`col_ts`)) `unix_timestamp(col_ts)` from `ts_test_remote`.`tbl_a` t0 where (_latin1'2018-10-28 01:30:00' > t0.`col_ts`)
+select t0.`col_a` `col_a`,t0.`col_dt` `col_dt`,t0.`col_ts` `col_ts`,(unix_timestamp(t0.`col_ts`)) `unix_timestamp(col_ts)` from `ts_test_remote`.`tbl_a` t0 where (t0.`col_ts` between _latin1'2018-10-28 00:30:00'  and  _latin1'2018-10-28 01:30:00')
+select t0.`col_a` `col_a`,t0.`col_dt` `col_dt`,t0.`col_ts` `col_ts`,(unix_timestamp(t0.`col_ts`)) `unix_timestamp(col_ts)` from `ts_test_remote`.`tbl_a` t0 where ((t0.`col_ts` >= _latin1'2018-10-28 00:30:00') and (t0.`col_ts` <= _latin1'2018-10-28 01:30:00'))
+select t0.`col_a` `col_a`,t0.`col_dt` `col_dt`,t0.`col_ts` `col_ts`,(unix_timestamp(t0.`col_ts`)) `unix_timestamp(col_ts)` from `ts_test_remote`.`tbl_a` t0 where (t0.`col_ts` > '2018-03-25 01:00:00')
+select t0.`col_a` `col_a`,t0.`col_dt` `col_dt`,t0.`col_ts` `col_ts`,(unix_timestamp(t0.`col_ts`)) `unix_timestamp(col_ts)` from `ts_test_remote`.`tbl_a` t0 where (t0.`col_ts` > '1970-01-01 00:00:01')
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT col_a, col_dt, col_ts, unix_timestamp(col_ts) FROM tbl_a ORDER BY col_a;
+col_a	col_dt	col_ts	unix_timestamp(col_ts)
+1	1970-01-01 01:00:01	1970-01-01 01:00:01	1
+2	2018-03-25 02:00:00	2018-03-25 03:00:00	1521939600
+3	2018-03-25 02:30:00	2018-03-25 03:30:00	1521941400
+4	2018-10-28 01:30:00	2018-10-28 02:30:00	1540686600
+5	2018-10-28 02:30:00	2018-10-28 02:30:00	1540690200
+6	2038-01-19 04:14:07	2038-01-19 04:14:07	2147483647
+
+Test the TIMESTAMP function
+connection master_1;
+INSERT INTO tbl_f VALUES ('2018-06-24', '01:23:45'),
+('2018-06-24', '01:23:45'),
+('2018-08-01', '12:34:56');
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT * FROM tbl_f;
+col_d	col_t
+2018-06-24	01:23:45
+2018-06-24	01:23:45
+2018-08-01	12:34:56
+SELECT TIMESTAMP(col_d, col_t) FROM tbl_f;
+TIMESTAMP(col_d, col_t)
+2018-06-24 01:23:45
+2018-06-24 01:23:45
+2018-08-01 12:34:56
+SELECT TIMESTAMP('2018-06-25', col_t) FROM tbl_f;
+TIMESTAMP('2018-06-25', col_t)
+2018-06-25 01:23:45
+2018-06-25 01:23:45
+2018-06-25 12:34:56
+SELECT TIMESTAMP(col_d, '10:43:21') FROM tbl_f;
+TIMESTAMP(col_d, '10:43:21')
+2018-06-24 10:43:21
+2018-06-24 10:43:21
+2018-08-01 10:43:21
+SELECT TIMESTAMP('2018-06-25', '10:43:21') FROM tbl_f;
+TIMESTAMP('2018-06-25', '10:43:21')
+2018-06-25 10:43:21
+2018-06-25 10:43:21
+2018-06-25 10:43:21
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select t0.`col_d` `col_d`,t0.`col_t` `col_t` from `ts_test_remote`.`tbl_f` t0
+select (timestamp(t0.`col_d` , t0.`col_t`)) `TIMESTAMP(col_d, col_t)` from `ts_test_remote`.`tbl_f` t0
+select (timestamp('2018-06-25' , t0.`col_t`)) `TIMESTAMP('2018-06-25', col_t)` from `ts_test_remote`.`tbl_f` t0
+select (timestamp(t0.`col_d` , '10:43:21')) `TIMESTAMP(col_d, '10:43:21')` from `ts_test_remote`.`tbl_f` t0
+select 1 from `ts_test_remote`.`tbl_f` t0
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT col_d, col_t FROM tbl_f;
+col_d	col_t
+2018-06-24	01:23:45
+2018-06-24	01:23:45
+2018-08-01	12:34:56
+
+Restore Time Zone settings
+connection master_1;
+SET GLOBAL time_zone=DEFAULT;
+SET time_zone=DEFAULT;
+connection child2_1;
+SET GLOBAL time_zone=DEFAULT;
+SET time_zone=DEFAULT;
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS ts_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS ts_test_remote;
+SET GLOBAL log_output = @old_log_output;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/r/vp_fixes.result b/storage/spider/mysql-test/spider/r/vp_fixes.result
new file mode 100644
index 00000000..cc0e4105
--- /dev/null
+++ b/storage/spider/mysql-test/spider/r/vp_fixes.result
@@ -0,0 +1,93 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+drop and create databases
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+test select 1
+connection master_1;
+SELECT 1;
+1
+1
+
+create table and insert
+connection master_1;
+DROP TABLE IF EXISTS tb_l;
+CREATE TABLE tb_l (
+a INT,
+b CHAR(1),
+c DATETIME,
+PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2
+INSERT INTO tb_l (a, b, c) VALUES
+(1, 'a', '2008-08-01 10:21:39'),
+(2, 'b', '2000-01-01 00:00:00'),
+(3, 'e', '2007-06-04 20:03:11'),
+(4, 'd', '2003-11-30 05:01:03'),
+(5, 'c', '2001-12-31 23:59:59');
+DROP TABLE IF EXISTS ta_l;
+CREATE TABLE ta_l (
+PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+
+0.9
+create different primary key table
+connection master_1;
+CREATE TABLE ta_l_int (
+a INT DEFAULT 10,
+b INT AUTO_INCREMENT,
+c INT DEFAULT 11,
+PRIMARY KEY(b)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1
+connection master_1;
+INSERT INTO ta_l_int (a, b, c) VALUES (2, NULL, 3);
+create un-correspond primary key table
+connection master_1;
+DROP TABLE IF EXISTS ta_l_int;
+connection master_1;
+CREATE TABLE ta_l_int (
+a INT DEFAULT 10,
+b INT DEFAULT 12,
+c INT DEFAULT 11,
+PRIMARY KEY(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1
+connection master_1;
+INSERT INTO ta_l_int (a, b, c) VALUES (2, NULL, 3);
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+child3_1
+child3_2
+child3_3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/regression/e1121/include/direct_join_by_pkey_key_deinit.inc b/storage/spider/mysql-test/spider/regression/e1121/include/direct_join_by_pkey_key_deinit.inc
new file mode 100644
index 00000000..ad30aac5
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/include/direct_join_by_pkey_key_deinit.inc
@@ -0,0 +1,12 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $MASTER_1_COMMENT_2_1_2= $MASTER_1_COMMENT_2_1_2_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/regression/e1121/include/direct_join_by_pkey_key_init.inc b/storage/spider/mysql-test/spider/regression/e1121/include/direct_join_by_pkey_key_init.inc
new file mode 100644
index 00000000..695d4610
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/include/direct_join_by_pkey_key_init.inc
@@ -0,0 +1,36 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a", srv "s_2_1"';
+--let $MASTER_1_COMMENT_2_1_2_BACKUP= $MASTER_1_COMMENT_2_1_2
+let $MASTER_1_COMMENT_2_1_2=
+  COMMENT='table "tbl_b", srv "s_2_1"';
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a $STR_SEMICOLON
+  DROP TABLE IF EXISTS tbl_b;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    akey int NOT NULL,
+    val int NOT NULL,
+    KEY idx1 (akey)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET $STR_SEMICOLON
+  CREATE TABLE tbl_b (
+    bkey int NOT NULL,
+    akey int NOT NULL,
+    PRIMARY KEY (bkey)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT akey, val FROM tbl_a ORDER BY akey $STR_SEMICOLON
+  SELECT bkey, akey FROM tbl_b ORDER BY bkey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%' $STR_SEMICOLON
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_b`%';
diff --git a/storage/spider/mysql-test/spider/regression/e1121/include/direct_join_by_pkey_pkey_deinit.inc b/storage/spider/mysql-test/spider/regression/e1121/include/direct_join_by_pkey_pkey_deinit.inc
new file mode 100644
index 00000000..ad30aac5
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/include/direct_join_by_pkey_pkey_deinit.inc
@@ -0,0 +1,12 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $MASTER_1_COMMENT_2_1_2= $MASTER_1_COMMENT_2_1_2_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/regression/e1121/include/direct_join_by_pkey_pkey_init.inc b/storage/spider/mysql-test/spider/regression/e1121/include/direct_join_by_pkey_pkey_init.inc
new file mode 100644
index 00000000..e364489c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/include/direct_join_by_pkey_pkey_init.inc
@@ -0,0 +1,36 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a", srv "s_2_1"';
+--let $MASTER_1_COMMENT_2_1_2_BACKUP= $MASTER_1_COMMENT_2_1_2
+let $MASTER_1_COMMENT_2_1_2=
+  COMMENT='table "tbl_b", srv "s_2_1"';
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a $STR_SEMICOLON
+  DROP TABLE IF EXISTS tbl_b;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    akey int NOT NULL,
+    val int NOT NULL,
+    PRIMARY KEY (akey)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET $STR_SEMICOLON
+  CREATE TABLE tbl_b (
+    bkey int NOT NULL,
+    akey int NOT NULL,
+    PRIMARY KEY (bkey)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT akey, val FROM tbl_a ORDER BY akey $STR_SEMICOLON
+  SELECT bkey, akey FROM tbl_b ORDER BY bkey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%' $STR_SEMICOLON
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_b`%';
diff --git a/storage/spider/mysql-test/spider/regression/e1121/include/load_data_ddi0_deinit.inc b/storage/spider/mysql-test/spider/regression/e1121/include/load_data_ddi0_deinit.inc
new file mode 100644
index 00000000..f1899d15
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/include/load_data_ddi0_deinit.inc
@@ -0,0 +1,3 @@
+--connection master_1
+set session spider_direct_dup_insert= @old_spider_direct_dup_insert;
+--source load_data_deinit.inc
diff --git a/storage/spider/mysql-test/spider/regression/e1121/include/load_data_ddi0_init.inc b/storage/spider/mysql-test/spider/regression/e1121/include/load_data_ddi0_init.inc
new file mode 100644
index 00000000..24f0dc98
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/include/load_data_ddi0_init.inc
@@ -0,0 +1,4 @@
+--source load_data_init.inc
+--connection master_1
+set @old_spider_direct_dup_insert= @@spider_direct_dup_insert;
+set session spider_direct_dup_insert= 0;
diff --git a/storage/spider/mysql-test/spider/regression/e1121/include/load_data_ddi1_deinit.inc b/storage/spider/mysql-test/spider/regression/e1121/include/load_data_ddi1_deinit.inc
new file mode 100644
index 00000000..f1899d15
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/include/load_data_ddi1_deinit.inc
@@ -0,0 +1,3 @@
+--connection master_1
+set session spider_direct_dup_insert= @old_spider_direct_dup_insert;
+--source load_data_deinit.inc
diff --git a/storage/spider/mysql-test/spider/regression/e1121/include/load_data_ddi1_init.inc b/storage/spider/mysql-test/spider/regression/e1121/include/load_data_ddi1_init.inc
new file mode 100644
index 00000000..50ef8d47
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/include/load_data_ddi1_init.inc
@@ -0,0 +1,4 @@
+--source load_data_init.inc
+--connection master_1
+set @old_spider_direct_dup_insert= @@spider_direct_dup_insert;
+set session spider_direct_dup_insert= 1;
diff --git a/storage/spider/mysql-test/spider/regression/e1121/include/load_data_deinit.inc b/storage/spider/mysql-test/spider/regression/e1121/include/load_data_deinit.inc
new file mode 100644
index 00000000..f8405973
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/include/load_data_deinit.inc
@@ -0,0 +1,11 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/regression/e1121/include/load_data_init.inc b/storage/spider/mysql-test/spider/regression/e1121/include/load_data_init.inc
new file mode 100644
index 00000000..5f410438
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/include/load_data_init.inc
@@ -0,0 +1,25 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a", srv "s_2_1"';
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    val int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT pkey, val FROM tbl_a ORDER BY pkey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
diff --git a/storage/spider/mysql-test/spider/regression/e1121/my.cnf b/storage/spider/mysql-test/spider/regression/e1121/my.cnf
new file mode 100644
index 00000000..47558d85
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/my.cnf
@@ -0,0 +1,3 @@
+!include include/default_mysqld.cnf
+!include my_1_1.cnf
+!include my_2_1.cnf
diff --git a/storage/spider/mysql-test/spider/regression/e1121/my_1_1.cnf b/storage/spider/mysql-test/spider/regression/e1121/my_1_1.cnf
new file mode 100644
index 00000000..5f17295d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/my_1_1.cnf
@@ -0,0 +1,44 @@
+[mysqld.1.1]
+log-bin=                  master-bin
+loose_handlersocket_port=                20000
+loose_handlersocket_port_wr=             20001
+loose_handlersocket_threads=             2
+loose_handlersocket_threads_wr=          1
+loose_handlersocket_support_merge_table= 0
+loose_handlersocket_direct_update_mode=  2
+loose_handlersocket_unlimited_boundary=  65536
+loose_handlersocket_bulk_insert=         0
+loose_handlersocket_bulk_insert_timeout= 0
+loose_handlersocket_general_log=         1
+loose_handlersocket_timeout=             30
+loose_handlersocket_close_table_interval=2
+open_files_limit=                        4096
+loose_partition=                         1
+
+[ENV]
+USE_GEOMETRY_TEST=        1
+USE_FULLTEXT_TEST=        1
+USE_HA_TEST=              1
+USE_GENERAL_LOG=          1
+USE_REPLICATION=          1
+MASTER_1_MYPORT=          @mysqld.1.1.port
+MASTER_1_HSRPORT=         20000
+MASTER_1_HSWPORT=         20001
+MASTER_1_MYSOCK=          @mysqld.1.1.socket
+MASTER_1_ENGINE_TYPE=     Spider
+#MASTER_1_ENGINE_TYPE=     MyISAM
+MASTER_1_ENGINE=          ENGINE=Spider
+MASTER_1_CHARSET=         DEFAULT CHARSET=utf8
+MASTER_1_ENGINE2=         ENGINE=MyISAM
+MASTER_1_CHARSET2=        DEFAULT CHARSET=utf8
+MASTER_1_CHARSET3=        DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci
+
+STR_SEMICOLON=            ;
+
+#The followings are set in include/init_xxx.inc files
+# MASTER_1_COMMENT_2_1
+# MASTER_1_COMMENT2_2_1
+# MASTER_1_COMMENT3_2_1
+# MASTER_1_COMMENT4_2_1
+# MASTER_1_COMMENT5_2_1
+# MASTER_1_COMMENT_P_2_1
diff --git a/storage/spider/mysql-test/spider/regression/e1121/my_2_1.cnf b/storage/spider/mysql-test/spider/regression/e1121/my_2_1.cnf
new file mode 100644
index 00000000..24161645
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/my_2_1.cnf
@@ -0,0 +1,56 @@
+[mysqld.2.1]
+loose_handlersocket_port=                20002
+loose_handlersocket_port_wr=             20003
+loose_handlersocket_threads=             2
+loose_handlersocket_threads_wr=          1
+loose_handlersocket_support_merge_table= 0
+loose_handlersocket_direct_update_mode=  2
+loose_handlersocket_unlimited_boundary=  65536
+loose_handlersocket_bulk_insert=         0
+loose_handlersocket_bulk_insert_timeout= 0
+loose_handlersocket_general_log=         1
+loose_handlersocket_timeout=             30
+loose_handlersocket_close_table_interval=2
+open_files_limit=                        4096
+
+[ENV]
+USE_CHILD_GROUP2=         1
+OUTPUT_CHILD_GROUP2=      0
+CHILD2_1_MYPORT=          @mysqld.2.1.port
+CHILD2_1_HSRPORT=         20002
+CHILD2_1_HSWPORT=         20003
+CHILD2_1_MYSOCK=          @mysqld.2.1.socket
+CHILD2_1_ENGINE_TYPE=     InnoDB
+CHILD2_1_ENGINE=          ENGINE=InnoDB
+CHILD2_1_CHARSET=         DEFAULT CHARSET=utf8
+CHILD2_1_CHARSET2=        DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci
+CHILD2_1_FT_MYPORT=       @mysqld.2.1.port
+CHILD2_1_FT_MYSOCK=       @mysqld.2.1.socket
+CHILD2_1_FT_ENGINE_TYPE=  MyISAM
+CHILD2_1_FT_ENGINE=       ENGINE=MyISAM
+CHILD2_1_FT_CHARSET=      DEFAULT CHARSET=utf8
+CHILD2_1_GM_MYPORT=       @mysqld.2.1.port
+CHILD2_1_GM_MYSOCK=       @mysqld.2.1.socket
+CHILD2_1_GM_ENGINE_TYPE=  MyISAM
+CHILD2_1_GM_ENGINE=       ENGINE=MyISAM
+CHILD2_1_GM_CHARSET=      DEFAULT CHARSET=utf8
+
+#The followings are set in include/init_xxx.inc files
+# CHILD2_1_DROP_TABLES
+# CHILD2_1_CREATE_TABLES
+# CHILD2_1_SELECT_TABLES
+# CHILD2_1_DROP_TABLES2
+# CHILD2_1_CREATE_TABLES2
+# CHILD2_1_SELECT_TABLES2
+# CHILD2_1_DROP_TABLES3
+# CHILD2_1_CREATE_TABLES3
+# CHILD2_1_SELECT_TABLES3
+# CHILD2_1_DROP_TABLES4
+# CHILD2_1_CREATE_TABLES4
+# CHILD2_1_SELECT_TABLES4
+# CHILD2_1_DROP_TABLES5
+# CHILD2_1_CREATE_TABLES5
+# CHILD2_1_SELECT_TABLES5
+# CHILD2_1_DROP_TABLES6
+# CHILD2_1_CREATE_TABLES6
+# CHILD2_1_SELECT_TABLES6
diff --git a/storage/spider/mysql-test/spider/regression/e1121/r/direct_join_by_pkey_key.result b/storage/spider/mysql-test/spider/regression/e1121/r/direct_join_by_pkey_key.result
new file mode 100644
index 00000000..4b04b71a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/r/direct_join_by_pkey_key.result
@@ -0,0 +1,94 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+this test is for MDEV-18995
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+akey int NOT NULL,
+val int NOT NULL,
+KEY idx1 (akey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+CREATE TABLE tbl_b (
+bkey int NOT NULL,
+akey int NOT NULL,
+PRIMARY KEY (bkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1_2
+INSERT INTO tbl_a (akey,val) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+INSERT INTO tbl_b (bkey,akey) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,4),(6,3),(7,2),(8,1),(9,0);
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.val, a.akey FROM tbl_a a, tbl_b b WHERE a.akey = b.akey AND b.bkey = 5;
+val	akey
+4	4
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%' ;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_b`%';
+argument
+select t0.`val` `val`,t0.`akey` `akey` from `auto_test_remote`.`tbl_a` t0 where (t0.`akey` = '4')
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%' ;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_b`%'
+argument
+select `bkey`,`akey` from `auto_test_remote`.`tbl_b` where `bkey` = 5
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%' ;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_b`%'
+SELECT akey, val FROM tbl_a ORDER BY akey ;
+SELECT bkey, akey FROM tbl_b ORDER BY bkey;
+akey	val
+0	0
+1	1
+2	2
+3	3
+4	4
+5	5
+6	6
+7	7
+8	8
+9	9
+bkey	akey
+0	0
+1	1
+2	2
+3	3
+4	4
+5	4
+6	3
+7	2
+8	1
+9	0
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/regression/e1121/r/direct_join_by_pkey_pkey.result b/storage/spider/mysql-test/spider/regression/e1121/r/direct_join_by_pkey_pkey.result
new file mode 100644
index 00000000..9a75cc69
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/r/direct_join_by_pkey_pkey.result
@@ -0,0 +1,94 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+this test is for MDEV-18995
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+akey int NOT NULL,
+val int NOT NULL,
+PRIMARY KEY (akey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+CREATE TABLE tbl_b (
+bkey int NOT NULL,
+akey int NOT NULL,
+PRIMARY KEY (bkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1_2
+INSERT INTO tbl_a (akey,val) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+INSERT INTO tbl_b (bkey,akey) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,4),(6,3),(7,2),(8,1),(9,0);
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT a.val, a.akey FROM tbl_a a, tbl_b b WHERE a.akey = b.akey AND b.bkey = 5;
+val	akey
+4	4
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%' ;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_b`%';
+argument
+select `akey`,`val` from `auto_test_remote`.`tbl_a` where `akey` = 4
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%' ;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_b`%'
+argument
+select `bkey`,`akey` from `auto_test_remote`.`tbl_b` where `bkey` = 5
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%' ;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_b`%'
+SELECT akey, val FROM tbl_a ORDER BY akey ;
+SELECT bkey, akey FROM tbl_b ORDER BY bkey;
+akey	val
+0	0
+1	1
+2	2
+3	3
+4	4
+5	5
+6	6
+7	7
+8	8
+9	9
+bkey	akey
+0	0
+1	1
+2	2
+3	3
+4	4
+5	4
+6	3
+7	2
+8	1
+9	0
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/regression/e1121/r/load_data_ddi0.result b/storage/spider/mysql-test/spider/regression/e1121/r/load_data_ddi0.result
new file mode 100644
index 00000000..2244b176
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/r/load_data_ddi0.result
@@ -0,0 +1,75 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_direct_dup_insert= @@spider_direct_dup_insert;
+set session spider_direct_dup_insert= 0;
+
+this test is for MDEV-18987
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+val int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey,val) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+SELECT pkey,val INTO OUTFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' FROM tbl_a ORDER BY pkey;
+TRUNCATE tbl_a;
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+LOAD DATA  INFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv'  INTO TABLE tbl_a;
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+0	0
+1	1
+2	2
+3	3
+4	4
+5	5
+6	6
+7	7
+8	8
+9	9
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_direct_dup_insert= @old_spider_direct_dup_insert;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/regression/e1121/r/load_data_ddi1.result b/storage/spider/mysql-test/spider/regression/e1121/r/load_data_ddi1.result
new file mode 100644
index 00000000..6d0d29cd
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/r/load_data_ddi1.result
@@ -0,0 +1,75 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_direct_dup_insert= @@spider_direct_dup_insert;
+set session spider_direct_dup_insert= 1;
+
+this test is for MDEV-18987
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+val int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey,val) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+SELECT pkey,val INTO OUTFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' FROM tbl_a ORDER BY pkey;
+TRUNCATE tbl_a;
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+LOAD DATA  INFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv'  INTO TABLE tbl_a;
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+0	0
+1	1
+2	2
+3	3
+4	4
+5	5
+6	6
+7	7
+8	8
+9	9
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_direct_dup_insert= @old_spider_direct_dup_insert;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/regression/e1121/r/load_data_ignore_ddi0.result b/storage/spider/mysql-test/spider/regression/e1121/r/load_data_ignore_ddi0.result
new file mode 100644
index 00000000..1bdd1470
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/r/load_data_ignore_ddi0.result
@@ -0,0 +1,95 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_direct_dup_insert= @@spider_direct_dup_insert;
+set session spider_direct_dup_insert= 0;
+
+this test is for MDEV-18987
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+val int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey,val) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+SELECT pkey,val INTO OUTFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' FROM tbl_a ORDER BY pkey;
+UPDATE tbl_a SET val = val + 1;
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+LOAD DATA  INFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' IGNORE INTO TABLE tbl_a;
+Warnings:
+Warning	1062	Duplicate entry '0' for key 'PRIMARY'
+Warning	1062	Duplicate entry '1' for key 'PRIMARY'
+Warning	1062	Duplicate entry '2' for key 'PRIMARY'
+Warning	1062	Duplicate entry '3' for key 'PRIMARY'
+Warning	1062	Duplicate entry '4' for key 'PRIMARY'
+Warning	1062	Duplicate entry '5' for key 'PRIMARY'
+Warning	1062	Duplicate entry '6' for key 'PRIMARY'
+Warning	1062	Duplicate entry '7' for key 'PRIMARY'
+Warning	1062	Duplicate entry '8' for key 'PRIMARY'
+Warning	1062	Duplicate entry '9' for key 'PRIMARY'
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(0,0)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(1,1)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(2,2)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(3,3)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(4,4)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(5,5)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(6,6)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(7,7)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(8,8)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(9,9)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+0	1
+1	2
+2	3
+3	4
+4	5
+5	6
+6	7
+7	8
+8	9
+9	10
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_direct_dup_insert= @old_spider_direct_dup_insert;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/regression/e1121/r/load_data_ignore_ddi1.result b/storage/spider/mysql-test/spider/regression/e1121/r/load_data_ignore_ddi1.result
new file mode 100644
index 00000000..4d64840e
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/r/load_data_ignore_ddi1.result
@@ -0,0 +1,75 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_direct_dup_insert= @@spider_direct_dup_insert;
+set session spider_direct_dup_insert= 1;
+
+this test is for MDEV-18987
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+val int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey,val) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+SELECT pkey,val INTO OUTFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' FROM tbl_a ORDER BY pkey;
+UPDATE tbl_a SET val = val + 1;
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+LOAD DATA  INFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' IGNORE INTO TABLE tbl_a;
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+insert high_priority ignore into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+0	1
+1	2
+2	3
+3	4
+4	5
+5	6
+6	7
+7	8
+8	9
+9	10
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_direct_dup_insert= @old_spider_direct_dup_insert;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/regression/e1121/r/load_data_local_ddi0.result b/storage/spider/mysql-test/spider/regression/e1121/r/load_data_local_ddi0.result
new file mode 100644
index 00000000..9156c838
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/r/load_data_local_ddi0.result
@@ -0,0 +1,84 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_direct_dup_insert= @@spider_direct_dup_insert;
+set session spider_direct_dup_insert= 0;
+
+this test is for MDEV-18987
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+val int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey,val) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+SELECT pkey,val INTO OUTFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' FROM tbl_a ORDER BY pkey;
+TRUNCATE tbl_a;
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+LOAD DATA LOCAL INFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv'  INTO TABLE tbl_a;
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(0,0)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(1,1)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(2,2)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(3,3)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(4,4)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(5,5)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(6,6)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(7,7)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(8,8)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(9,9)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+0	0
+1	1
+2	2
+3	3
+4	4
+5	5
+6	6
+7	7
+8	8
+9	9
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_direct_dup_insert= @old_spider_direct_dup_insert;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/regression/e1121/r/load_data_local_ddi1.result b/storage/spider/mysql-test/spider/regression/e1121/r/load_data_local_ddi1.result
new file mode 100644
index 00000000..761ce71d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/r/load_data_local_ddi1.result
@@ -0,0 +1,75 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_direct_dup_insert= @@spider_direct_dup_insert;
+set session spider_direct_dup_insert= 1;
+
+this test is for MDEV-18987
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+val int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey,val) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+SELECT pkey,val INTO OUTFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' FROM tbl_a ORDER BY pkey;
+TRUNCATE tbl_a;
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+LOAD DATA LOCAL INFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv'  INTO TABLE tbl_a;
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+insert high_priority ignore into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+0	0
+1	1
+2	2
+3	3
+4	4
+5	5
+6	6
+7	7
+8	8
+9	9
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_direct_dup_insert= @old_spider_direct_dup_insert;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/regression/e1121/r/load_data_local_ignore_ddi0.result b/storage/spider/mysql-test/spider/regression/e1121/r/load_data_local_ignore_ddi0.result
new file mode 100644
index 00000000..81d0fdbf
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/r/load_data_local_ignore_ddi0.result
@@ -0,0 +1,95 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_direct_dup_insert= @@spider_direct_dup_insert;
+set session spider_direct_dup_insert= 0;
+
+this test is for MDEV-18987
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+val int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey,val) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+SELECT pkey,val INTO OUTFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' FROM tbl_a ORDER BY pkey;
+UPDATE tbl_a SET val = val + 1;
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+LOAD DATA LOCAL INFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' IGNORE INTO TABLE tbl_a;
+Warnings:
+Warning	1062	Duplicate entry '0' for key 'PRIMARY'
+Warning	1062	Duplicate entry '1' for key 'PRIMARY'
+Warning	1062	Duplicate entry '2' for key 'PRIMARY'
+Warning	1062	Duplicate entry '3' for key 'PRIMARY'
+Warning	1062	Duplicate entry '4' for key 'PRIMARY'
+Warning	1062	Duplicate entry '5' for key 'PRIMARY'
+Warning	1062	Duplicate entry '6' for key 'PRIMARY'
+Warning	1062	Duplicate entry '7' for key 'PRIMARY'
+Warning	1062	Duplicate entry '8' for key 'PRIMARY'
+Warning	1062	Duplicate entry '9' for key 'PRIMARY'
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(0,0)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(1,1)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(2,2)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(3,3)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(4,4)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(5,5)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(6,6)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(7,7)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(8,8)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(9,9)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+0	1
+1	2
+2	3
+3	4
+4	5
+5	6
+6	7
+7	8
+8	9
+9	10
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_direct_dup_insert= @old_spider_direct_dup_insert;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/regression/e1121/r/load_data_local_ignore_ddi1.result b/storage/spider/mysql-test/spider/regression/e1121/r/load_data_local_ignore_ddi1.result
new file mode 100644
index 00000000..737cccc4
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/r/load_data_local_ignore_ddi1.result
@@ -0,0 +1,75 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_direct_dup_insert= @@spider_direct_dup_insert;
+set session spider_direct_dup_insert= 1;
+
+this test is for MDEV-18987
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+val int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey,val) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+SELECT pkey,val INTO OUTFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' FROM tbl_a ORDER BY pkey;
+UPDATE tbl_a SET val = val + 1;
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+LOAD DATA LOCAL INFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' IGNORE INTO TABLE tbl_a;
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+insert high_priority ignore into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+0	1
+1	2
+2	3
+3	4
+4	5
+5	6
+6	7
+7	8
+8	9
+9	10
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_direct_dup_insert= @old_spider_direct_dup_insert;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/regression/e1121/r/load_data_local_replace_ddi0.result b/storage/spider/mysql-test/spider/regression/e1121/r/load_data_local_replace_ddi0.result
new file mode 100644
index 00000000..7d8fb034
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/r/load_data_local_replace_ddi0.result
@@ -0,0 +1,104 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_direct_dup_insert= @@spider_direct_dup_insert;
+set session spider_direct_dup_insert= 0;
+
+this test is for MDEV-18987
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+val int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey,val) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+SELECT pkey,val INTO OUTFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' FROM tbl_a ORDER BY pkey;
+UPDATE tbl_a SET val = val + 1;
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+LOAD DATA LOCAL INFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' REPLACE INTO TABLE tbl_a;
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+insert into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(0,0)
+select `pkey`,`val` from `auto_test_remote`.`tbl_a` where `pkey` = 0 for update
+update ignore `auto_test_remote`.`tbl_a` set `pkey` = 0,`val` = 0 where `pkey` = 0 and `val` = 1 limit 1
+insert into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(1,1)
+select `pkey`,`val` from `auto_test_remote`.`tbl_a` where `pkey` = 1 for update
+update ignore `auto_test_remote`.`tbl_a` set `pkey` = 1,`val` = 1 where `pkey` = 1 and `val` = 2 limit 1
+insert into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(2,2)
+select `pkey`,`val` from `auto_test_remote`.`tbl_a` where `pkey` = 2 for update
+update ignore `auto_test_remote`.`tbl_a` set `pkey` = 2,`val` = 2 where `pkey` = 2 and `val` = 3 limit 1
+insert into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(3,3)
+select `pkey`,`val` from `auto_test_remote`.`tbl_a` where `pkey` = 3 for update
+update ignore `auto_test_remote`.`tbl_a` set `pkey` = 3,`val` = 3 where `pkey` = 3 and `val` = 4 limit 1
+insert into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(4,4)
+select `pkey`,`val` from `auto_test_remote`.`tbl_a` where `pkey` = 4 for update
+update ignore `auto_test_remote`.`tbl_a` set `pkey` = 4,`val` = 4 where `pkey` = 4 and `val` = 5 limit 1
+insert into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(5,5)
+select `pkey`,`val` from `auto_test_remote`.`tbl_a` where `pkey` = 5 for update
+update ignore `auto_test_remote`.`tbl_a` set `pkey` = 5,`val` = 5 where `pkey` = 5 and `val` = 6 limit 1
+insert into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(6,6)
+select `pkey`,`val` from `auto_test_remote`.`tbl_a` where `pkey` = 6 for update
+update ignore `auto_test_remote`.`tbl_a` set `pkey` = 6,`val` = 6 where `pkey` = 6 and `val` = 7 limit 1
+insert into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(7,7)
+select `pkey`,`val` from `auto_test_remote`.`tbl_a` where `pkey` = 7 for update
+update ignore `auto_test_remote`.`tbl_a` set `pkey` = 7,`val` = 7 where `pkey` = 7 and `val` = 8 limit 1
+insert into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(8,8)
+select `pkey`,`val` from `auto_test_remote`.`tbl_a` where `pkey` = 8 for update
+update ignore `auto_test_remote`.`tbl_a` set `pkey` = 8,`val` = 8 where `pkey` = 8 and `val` = 9 limit 1
+insert into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(9,9)
+select `pkey`,`val` from `auto_test_remote`.`tbl_a` where `pkey` = 9 for update
+update ignore `auto_test_remote`.`tbl_a` set `pkey` = 9,`val` = 9 where `pkey` = 9 and `val` = 10 limit 1
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+0	0
+1	1
+2	2
+3	3
+4	4
+5	5
+6	6
+7	7
+8	8
+9	9
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_direct_dup_insert= @old_spider_direct_dup_insert;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/regression/e1121/r/load_data_local_replace_ddi1.result b/storage/spider/mysql-test/spider/regression/e1121/r/load_data_local_replace_ddi1.result
new file mode 100644
index 00000000..f3e272c1
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/r/load_data_local_replace_ddi1.result
@@ -0,0 +1,75 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_direct_dup_insert= @@spider_direct_dup_insert;
+set session spider_direct_dup_insert= 1;
+
+this test is for MDEV-18987
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+val int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey,val) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+SELECT pkey,val INTO OUTFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' FROM tbl_a ORDER BY pkey;
+UPDATE tbl_a SET val = val + 1;
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+LOAD DATA LOCAL INFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' REPLACE INTO TABLE tbl_a;
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+replace into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+0	0
+1	1
+2	2
+3	3
+4	4
+5	5
+6	6
+7	7
+8	8
+9	9
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_direct_dup_insert= @old_spider_direct_dup_insert;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/regression/e1121/r/load_data_replace_ddi0.result b/storage/spider/mysql-test/spider/regression/e1121/r/load_data_replace_ddi0.result
new file mode 100644
index 00000000..3ce058a9
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/r/load_data_replace_ddi0.result
@@ -0,0 +1,104 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_direct_dup_insert= @@spider_direct_dup_insert;
+set session spider_direct_dup_insert= 0;
+
+this test is for MDEV-18987
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+val int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey,val) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+SELECT pkey,val INTO OUTFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' FROM tbl_a ORDER BY pkey;
+UPDATE tbl_a SET val = val + 1;
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+LOAD DATA  INFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' REPLACE INTO TABLE tbl_a;
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+insert into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(0,0)
+select `pkey`,`val` from `auto_test_remote`.`tbl_a` where `pkey` = 0 for update
+update ignore `auto_test_remote`.`tbl_a` set `pkey` = 0,`val` = 0 where `pkey` = 0 and `val` = 1 limit 1
+insert into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(1,1)
+select `pkey`,`val` from `auto_test_remote`.`tbl_a` where `pkey` = 1 for update
+update ignore `auto_test_remote`.`tbl_a` set `pkey` = 1,`val` = 1 where `pkey` = 1 and `val` = 2 limit 1
+insert into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(2,2)
+select `pkey`,`val` from `auto_test_remote`.`tbl_a` where `pkey` = 2 for update
+update ignore `auto_test_remote`.`tbl_a` set `pkey` = 2,`val` = 2 where `pkey` = 2 and `val` = 3 limit 1
+insert into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(3,3)
+select `pkey`,`val` from `auto_test_remote`.`tbl_a` where `pkey` = 3 for update
+update ignore `auto_test_remote`.`tbl_a` set `pkey` = 3,`val` = 3 where `pkey` = 3 and `val` = 4 limit 1
+insert into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(4,4)
+select `pkey`,`val` from `auto_test_remote`.`tbl_a` where `pkey` = 4 for update
+update ignore `auto_test_remote`.`tbl_a` set `pkey` = 4,`val` = 4 where `pkey` = 4 and `val` = 5 limit 1
+insert into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(5,5)
+select `pkey`,`val` from `auto_test_remote`.`tbl_a` where `pkey` = 5 for update
+update ignore `auto_test_remote`.`tbl_a` set `pkey` = 5,`val` = 5 where `pkey` = 5 and `val` = 6 limit 1
+insert into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(6,6)
+select `pkey`,`val` from `auto_test_remote`.`tbl_a` where `pkey` = 6 for update
+update ignore `auto_test_remote`.`tbl_a` set `pkey` = 6,`val` = 6 where `pkey` = 6 and `val` = 7 limit 1
+insert into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(7,7)
+select `pkey`,`val` from `auto_test_remote`.`tbl_a` where `pkey` = 7 for update
+update ignore `auto_test_remote`.`tbl_a` set `pkey` = 7,`val` = 7 where `pkey` = 7 and `val` = 8 limit 1
+insert into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(8,8)
+select `pkey`,`val` from `auto_test_remote`.`tbl_a` where `pkey` = 8 for update
+update ignore `auto_test_remote`.`tbl_a` set `pkey` = 8,`val` = 8 where `pkey` = 8 and `val` = 9 limit 1
+insert into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(9,9)
+select `pkey`,`val` from `auto_test_remote`.`tbl_a` where `pkey` = 9 for update
+update ignore `auto_test_remote`.`tbl_a` set `pkey` = 9,`val` = 9 where `pkey` = 9 and `val` = 10 limit 1
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+0	0
+1	1
+2	2
+3	3
+4	4
+5	5
+6	6
+7	7
+8	8
+9	9
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_direct_dup_insert= @old_spider_direct_dup_insert;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/regression/e1121/r/load_data_replace_ddi1.result b/storage/spider/mysql-test/spider/regression/e1121/r/load_data_replace_ddi1.result
new file mode 100644
index 00000000..86124b9c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/r/load_data_replace_ddi1.result
@@ -0,0 +1,75 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_direct_dup_insert= @@spider_direct_dup_insert;
+set session spider_direct_dup_insert= 1;
+
+this test is for MDEV-18987
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+val int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey,val) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+SELECT pkey,val INTO OUTFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' FROM tbl_a ORDER BY pkey;
+UPDATE tbl_a SET val = val + 1;
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+LOAD DATA  INFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' REPLACE INTO TABLE tbl_a;
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+replace into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+0	0
+1	1
+2	2
+3	3
+4	4
+5	5
+6	6
+7	7
+8	8
+9	9
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_direct_dup_insert= @old_spider_direct_dup_insert;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/regression/e1121/suite.opt b/storage/spider/mysql-test/spider/regression/e1121/suite.opt
new file mode 100644
index 00000000..672a3b37
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/suite.opt
@@ -0,0 +1 @@
+--loose-innodb --loose-skip-performance-schema
diff --git a/storage/spider/mysql-test/spider/regression/e1121/suite.pm b/storage/spider/mysql-test/spider/regression/e1121/suite.pm
new file mode 100644
index 00000000..171fa6c4
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/suite.pm
@@ -0,0 +1,11 @@
+package My::Suite::Spider;
+
+@ISA = qw(My::Suite);
+
+return "No Spider engine" unless $ENV{HA_SPIDER_SO};
+return "Not run for embedded server" if $::opt_embedded_server;
+
+sub is_default { 1 }
+
+bless { };
+
diff --git a/storage/spider/mysql-test/spider/regression/e1121/t/direct_join_by_pkey_key.test b/storage/spider/mysql-test/spider/regression/e1121/t/direct_join_by_pkey_key.test
new file mode 100644
index 00000000..39b5b553
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/t/direct_join_by_pkey_key.test
@@ -0,0 +1,86 @@
+--source ../include/direct_join_by_pkey_key_init.inc
+--echo
+--echo this test is for MDEV-18995
+--echo
+--echo drop and create databases
+
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection child2_1
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+--enable_warnings
+
+--echo
+--echo create table and insert
+
+--connection child2_1
+--disable_query_log
+--disable_ps_protocol
+echo CHILD2_1_CREATE_TABLES;
+eval $CHILD2_1_CREATE_TABLES;
+--enable_ps_protocol
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    akey int NOT NULL,
+    val int NOT NULL,
+    KEY idx1 (akey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    akey int NOT NULL,
+    val int NOT NULL,
+    KEY idx1 (akey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+echo CREATE TABLE tbl_b (
+    bkey int NOT NULL,
+    akey int NOT NULL,
+    PRIMARY KEY (bkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1_2;
+eval CREATE TABLE tbl_b (
+    bkey int NOT NULL,
+    akey int NOT NULL,
+    PRIMARY KEY (bkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1_2;
+--enable_query_log
+INSERT INTO tbl_a (akey,val) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+INSERT INTO tbl_b (bkey,akey) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,4),(6,3),(7,2),(8,1),(9,0);
+
+--echo
+--echo select test 1
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+SELECT a.val, a.akey FROM tbl_a a, tbl_b b WHERE a.akey = b.akey AND b.bkey = 5;
+
+--connection child2_1
+--disable_ps_protocol
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+--enable_ps_protocol
+
+--echo
+--echo deinit
+--disable_warnings
+
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection child2_1
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+
+--enable_warnings
+--source ../include/direct_join_by_pkey_key_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/regression/e1121/t/direct_join_by_pkey_pkey.test b/storage/spider/mysql-test/spider/regression/e1121/t/direct_join_by_pkey_pkey.test
new file mode 100644
index 00000000..652f7d15
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/t/direct_join_by_pkey_pkey.test
@@ -0,0 +1,86 @@
+--source ../include/direct_join_by_pkey_pkey_init.inc
+--echo
+--echo this test is for MDEV-18995
+--echo
+--echo drop and create databases
+
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection child2_1
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+--enable_warnings
+
+--echo
+--echo create table and insert
+
+--connection child2_1
+--disable_query_log
+echo CHILD2_1_CREATE_TABLES;
+--disable_ps_protocol
+eval $CHILD2_1_CREATE_TABLES;
+--enable_ps_protocol
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    akey int NOT NULL,
+    val int NOT NULL,
+    PRIMARY KEY (akey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    akey int NOT NULL,
+    val int NOT NULL,
+    PRIMARY KEY (akey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+echo CREATE TABLE tbl_b (
+    bkey int NOT NULL,
+    akey int NOT NULL,
+    PRIMARY KEY (bkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1_2;
+eval CREATE TABLE tbl_b (
+    bkey int NOT NULL,
+    akey int NOT NULL,
+    PRIMARY KEY (bkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1_2;
+--enable_query_log
+INSERT INTO tbl_a (akey,val) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+INSERT INTO tbl_b (bkey,akey) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,4),(6,3),(7,2),(8,1),(9,0);
+
+--echo
+--echo select test 1
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+SELECT a.val, a.akey FROM tbl_a a, tbl_b b WHERE a.akey = b.akey AND b.bkey = 5;
+
+--connection child2_1
+--disable_ps_protocol
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+--enable_ps_protocol
+
+--echo
+--echo deinit
+--disable_warnings
+
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection child2_1
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+
+--enable_warnings
+--source ../include/direct_join_by_pkey_pkey_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/regression/e1121/t/load_data.inc b/storage/spider/mysql-test/spider/regression/e1121/t/load_data.inc
new file mode 100644
index 00000000..8c1aa4e6
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/t/load_data.inc
@@ -0,0 +1,76 @@
+--echo
+--echo this test is for MDEV-18987
+--echo
+--echo drop and create databases
+
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection child2_1
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+--enable_warnings
+
+--echo
+--echo create table and insert
+
+--connection child2_1
+--disable_query_log
+echo CHILD2_1_CREATE_TABLES;
+eval $CHILD2_1_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    val int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    val int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO tbl_a (pkey,val) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+--disable_query_log
+--echo SELECT pkey,val INTO OUTFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' FROM tbl_a ORDER BY pkey;
+eval SELECT pkey,val INTO OUTFILE '$MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' FROM tbl_a ORDER BY pkey;
+--enable_query_log
+eval $COMMAND_BEFORE_LOAD_DATA;
+
+--echo
+--echo select test 1
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+--disable_query_log
+--echo LOAD DATA $OPTION_LOCAL INFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' $OPTION_WORD INTO TABLE tbl_a;
+eval LOAD DATA $OPTION_LOCAL INFILE '$MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' $OPTION_WORD INTO TABLE tbl_a;
+--enable_query_log
+--remove_file $MYSQLTEST_VARDIR/tmp/spider_outfile.tsv
+
+--connection child2_1
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+
+--echo
+--echo deinit
+--disable_warnings
+
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection child2_1
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/regression/e1121/t/load_data_ddi0.test b/storage/spider/mysql-test/spider/regression/e1121/t/load_data_ddi0.test
new file mode 100644
index 00000000..d43a944d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/t/load_data_ddi0.test
@@ -0,0 +1,8 @@
+--source ../include/load_data_ddi0_init.inc
+--let COMMAND_BEFORE_LOAD_DATA= TRUNCATE tbl_a
+--let OPTION_LOCAL=
+--let OPTION_WORD=
+--source load_data.inc
+--source ../include/load_data_ddi0_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/regression/e1121/t/load_data_ddi1.test b/storage/spider/mysql-test/spider/regression/e1121/t/load_data_ddi1.test
new file mode 100644
index 00000000..a73d1ef0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/t/load_data_ddi1.test
@@ -0,0 +1,8 @@
+--source ../include/load_data_ddi1_init.inc
+--let COMMAND_BEFORE_LOAD_DATA= TRUNCATE tbl_a
+--let OPTION_LOCAL=
+--let OPTION_WORD=
+--source load_data.inc
+--source ../include/load_data_ddi1_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/regression/e1121/t/load_data_ignore_ddi0.test b/storage/spider/mysql-test/spider/regression/e1121/t/load_data_ignore_ddi0.test
new file mode 100644
index 00000000..6fee83e7
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/t/load_data_ignore_ddi0.test
@@ -0,0 +1,8 @@
+--source ../include/load_data_ddi0_init.inc
+--let COMMAND_BEFORE_LOAD_DATA= UPDATE tbl_a SET val = val + 1
+--let OPTION_LOCAL=
+--let OPTION_WORD= IGNORE
+--source load_data.inc
+--source ../include/load_data_ddi0_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/regression/e1121/t/load_data_ignore_ddi1.test b/storage/spider/mysql-test/spider/regression/e1121/t/load_data_ignore_ddi1.test
new file mode 100644
index 00000000..1c882791
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/t/load_data_ignore_ddi1.test
@@ -0,0 +1,8 @@
+--source ../include/load_data_ddi1_init.inc
+--let COMMAND_BEFORE_LOAD_DATA= UPDATE tbl_a SET val = val + 1
+--let OPTION_LOCAL=
+--let OPTION_WORD= IGNORE
+--source load_data.inc
+--source ../include/load_data_ddi1_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/regression/e1121/t/load_data_local_ddi0.test b/storage/spider/mysql-test/spider/regression/e1121/t/load_data_local_ddi0.test
new file mode 100644
index 00000000..dadd0224
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/t/load_data_local_ddi0.test
@@ -0,0 +1,8 @@
+--source ../include/load_data_ddi0_init.inc
+--let COMMAND_BEFORE_LOAD_DATA= TRUNCATE tbl_a
+--let OPTION_LOCAL= LOCAL
+--let OPTION_WORD=
+--source load_data.inc
+--source ../include/load_data_ddi0_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/regression/e1121/t/load_data_local_ddi1.test b/storage/spider/mysql-test/spider/regression/e1121/t/load_data_local_ddi1.test
new file mode 100644
index 00000000..95b06505
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/t/load_data_local_ddi1.test
@@ -0,0 +1,8 @@
+--source ../include/load_data_ddi1_init.inc
+--let COMMAND_BEFORE_LOAD_DATA= TRUNCATE tbl_a
+--let OPTION_LOCAL= LOCAL
+--let OPTION_WORD=
+--source load_data.inc
+--source ../include/load_data_ddi1_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/regression/e1121/t/load_data_local_ignore_ddi0.test b/storage/spider/mysql-test/spider/regression/e1121/t/load_data_local_ignore_ddi0.test
new file mode 100644
index 00000000..2243f892
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/t/load_data_local_ignore_ddi0.test
@@ -0,0 +1,8 @@
+--source ../include/load_data_ddi0_init.inc
+--let COMMAND_BEFORE_LOAD_DATA= UPDATE tbl_a SET val = val + 1
+--let OPTION_LOCAL= LOCAL
+--let OPTION_WORD= IGNORE
+--source load_data.inc
+--source ../include/load_data_ddi0_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/regression/e1121/t/load_data_local_ignore_ddi1.test b/storage/spider/mysql-test/spider/regression/e1121/t/load_data_local_ignore_ddi1.test
new file mode 100644
index 00000000..2ab7307e
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/t/load_data_local_ignore_ddi1.test
@@ -0,0 +1,8 @@
+--source ../include/load_data_ddi1_init.inc
+--let COMMAND_BEFORE_LOAD_DATA= UPDATE tbl_a SET val = val + 1
+--let OPTION_LOCAL= LOCAL
+--let OPTION_WORD= IGNORE
+--source load_data.inc
+--source ../include/load_data_ddi1_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/regression/e1121/t/load_data_local_replace_ddi0.test b/storage/spider/mysql-test/spider/regression/e1121/t/load_data_local_replace_ddi0.test
new file mode 100644
index 00000000..1821a9ef
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/t/load_data_local_replace_ddi0.test
@@ -0,0 +1,8 @@
+--source ../include/load_data_ddi0_init.inc
+--let COMMAND_BEFORE_LOAD_DATA= UPDATE tbl_a SET val = val + 1
+--let OPTION_LOCAL= LOCAL
+--let OPTION_WORD= REPLACE
+--source load_data.inc
+--source ../include/load_data_ddi0_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/regression/e1121/t/load_data_local_replace_ddi1.test b/storage/spider/mysql-test/spider/regression/e1121/t/load_data_local_replace_ddi1.test
new file mode 100644
index 00000000..3d53feca
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/t/load_data_local_replace_ddi1.test
@@ -0,0 +1,8 @@
+--source ../include/load_data_ddi1_init.inc
+--let COMMAND_BEFORE_LOAD_DATA= UPDATE tbl_a SET val = val + 1
+--let OPTION_LOCAL= LOCAL
+--let OPTION_WORD= REPLACE
+--source load_data.inc
+--source ../include/load_data_ddi1_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/regression/e1121/t/load_data_replace_ddi0.test b/storage/spider/mysql-test/spider/regression/e1121/t/load_data_replace_ddi0.test
new file mode 100644
index 00000000..4bc402a4
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/t/load_data_replace_ddi0.test
@@ -0,0 +1,8 @@
+--source ../include/load_data_ddi0_init.inc
+--let COMMAND_BEFORE_LOAD_DATA= UPDATE tbl_a SET val = val + 1
+--let OPTION_LOCAL=
+--let OPTION_WORD= REPLACE
+--source load_data.inc
+--source ../include/load_data_ddi0_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/regression/e1121/t/load_data_replace_ddi1.test b/storage/spider/mysql-test/spider/regression/e1121/t/load_data_replace_ddi1.test
new file mode 100644
index 00000000..9dafd24a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e1121/t/load_data_replace_ddi1.test
@@ -0,0 +1,8 @@
+--source ../include/load_data_ddi1_init.inc
+--let COMMAND_BEFORE_LOAD_DATA= UPDATE tbl_a SET val = val + 1
+--let OPTION_LOCAL=
+--let OPTION_WORD= REPLACE
+--source load_data.inc
+--source ../include/load_data_ddi1_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/regression/e112122/include/group_by_order_by_limit_ok_deinit.inc b/storage/spider/mysql-test/spider/regression/e112122/include/group_by_order_by_limit_ok_deinit.inc
new file mode 100644
index 00000000..2248eef3
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/include/group_by_order_by_limit_ok_deinit.inc
@@ -0,0 +1,14 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--let $CHILD2_2_DROP_TABLES= $CHILD2_2_DROP_TABLES_BACKUP
+--let $CHILD2_2_CREATE_TABLES= $CHILD2_2_CREATE_TABLES_BACKUP
+--let $CHILD2_2_SELECT_TABLES= $CHILD2_2_SELECT_TABLES_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/regression/e112122/include/group_by_order_by_limit_ok_init.inc b/storage/spider/mysql-test/spider/regression/e112122/include/group_by_order_by_limit_ok_init.inc
new file mode 100644
index 00000000..a6945218
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/include/group_by_order_by_limit_ok_init.inc
@@ -0,0 +1,54 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../../t/test_init.inc
+if (!$HAVE_PARTITION)
+{
+  --source group_by_order_by_limit_ok_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a"'
+  PARTITION BY KEY(skey) (
+    PARTITION pt1 COMMENT='srv "s_2_1"',
+    PARTITION pt2 COMMENT='srv "s_2_2"'
+  );
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    skey int NOT NULL,
+    KEY idx1 (pkey),
+    KEY idx2 (skey)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT pkey, skey FROM tbl_a ORDER BY pkey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $CHILD2_2_DROP_TABLES_BACKUP= $CHILD2_2_DROP_TABLES
+let $CHILD2_2_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_2_CREATE_TABLES_BACKUP= $CHILD2_2_CREATE_TABLES
+let $CHILD2_2_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    skey int NOT NULL,
+    KEY idx1 (pkey),
+    KEY idx2 (skey)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+--let $CHILD2_2_SELECT_TABLES_BACKUP= $CHILD2_2_SELECT_TABLES
+let $CHILD2_2_SELECT_TABLES=
+  SELECT pkey, skey FROM tbl_a ORDER BY pkey;
+let $CHILD2_2_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
diff --git a/storage/spider/mysql-test/spider/regression/e112122/include/load_data_part_ddi0_deinit.inc b/storage/spider/mysql-test/spider/regression/e112122/include/load_data_part_ddi0_deinit.inc
new file mode 100644
index 00000000..c4191734
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/include/load_data_part_ddi0_deinit.inc
@@ -0,0 +1,3 @@
+--connection master_1
+set session spider_direct_dup_insert= @old_spider_direct_dup_insert;
+--source load_data_part_deinit.inc
diff --git a/storage/spider/mysql-test/spider/regression/e112122/include/load_data_part_ddi0_init.inc b/storage/spider/mysql-test/spider/regression/e112122/include/load_data_part_ddi0_init.inc
new file mode 100644
index 00000000..8e69f52c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/include/load_data_part_ddi0_init.inc
@@ -0,0 +1,4 @@
+--source load_data_part_init.inc
+--connection master_1
+set @old_spider_direct_dup_insert= @@spider_direct_dup_insert;
+set session spider_direct_dup_insert= 0;
diff --git a/storage/spider/mysql-test/spider/regression/e112122/include/load_data_part_ddi1_deinit.inc b/storage/spider/mysql-test/spider/regression/e112122/include/load_data_part_ddi1_deinit.inc
new file mode 100644
index 00000000..c4191734
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/include/load_data_part_ddi1_deinit.inc
@@ -0,0 +1,3 @@
+--connection master_1
+set session spider_direct_dup_insert= @old_spider_direct_dup_insert;
+--source load_data_part_deinit.inc
diff --git a/storage/spider/mysql-test/spider/regression/e112122/include/load_data_part_ddi1_init.inc b/storage/spider/mysql-test/spider/regression/e112122/include/load_data_part_ddi1_init.inc
new file mode 100644
index 00000000..b9194ccd
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/include/load_data_part_ddi1_init.inc
@@ -0,0 +1,4 @@
+--source load_data_part_init.inc
+--connection master_1
+set @old_spider_direct_dup_insert= @@spider_direct_dup_insert;
+set session spider_direct_dup_insert= 1;
diff --git a/storage/spider/mysql-test/spider/regression/e112122/include/load_data_part_deinit.inc b/storage/spider/mysql-test/spider/regression/e112122/include/load_data_part_deinit.inc
new file mode 100644
index 00000000..2248eef3
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/include/load_data_part_deinit.inc
@@ -0,0 +1,14 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--let $CHILD2_2_DROP_TABLES= $CHILD2_2_DROP_TABLES_BACKUP
+--let $CHILD2_2_CREATE_TABLES= $CHILD2_2_CREATE_TABLES_BACKUP
+--let $CHILD2_2_SELECT_TABLES= $CHILD2_2_SELECT_TABLES_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/regression/e112122/include/load_data_part_init.inc b/storage/spider/mysql-test/spider/regression/e112122/include/load_data_part_init.inc
new file mode 100644
index 00000000..42a0ea72
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/include/load_data_part_init.inc
@@ -0,0 +1,52 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../../t/test_init.inc
+if (!$HAVE_PARTITION)
+{
+  --source load_data_part_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='table "tbl_a"'
+  PARTITION BY KEY(pkey) (
+    PARTITION pt1 COMMENT='srv "s_2_1"',
+    PARTITION pt2 COMMENT='srv "s_2_2"'
+  );
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    val int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT pkey, val FROM tbl_a ORDER BY pkey;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+--let $CHILD2_2_DROP_TABLES_BACKUP= $CHILD2_2_DROP_TABLES
+let $CHILD2_2_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_2_CREATE_TABLES_BACKUP= $CHILD2_2_CREATE_TABLES
+let $CHILD2_2_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    val int NOT NULL,
+    PRIMARY KEY (pkey)
+  ) $CHILD2_2_ENGINE $CHILD2_2_CHARSET;
+--let $CHILD2_2_SELECT_TABLES_BACKUP= $CHILD2_2_SELECT_TABLES
+let $CHILD2_2_SELECT_TABLES=
+  SELECT pkey, val FROM tbl_a ORDER BY pkey;
+let $CHILD2_2_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
diff --git a/storage/spider/mysql-test/spider/regression/e112122/my.cnf b/storage/spider/mysql-test/spider/regression/e112122/my.cnf
new file mode 100644
index 00000000..6610e4cf
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/my.cnf
@@ -0,0 +1,4 @@
+!include include/default_mysqld.cnf
+!include my_1_1.cnf
+!include my_2_1.cnf
+!include my_2_2.cnf
diff --git a/storage/spider/mysql-test/spider/regression/e112122/my_1_1.cnf b/storage/spider/mysql-test/spider/regression/e112122/my_1_1.cnf
new file mode 100644
index 00000000..5f17295d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/my_1_1.cnf
@@ -0,0 +1,44 @@
+[mysqld.1.1]
+log-bin=                  master-bin
+loose_handlersocket_port=                20000
+loose_handlersocket_port_wr=             20001
+loose_handlersocket_threads=             2
+loose_handlersocket_threads_wr=          1
+loose_handlersocket_support_merge_table= 0
+loose_handlersocket_direct_update_mode=  2
+loose_handlersocket_unlimited_boundary=  65536
+loose_handlersocket_bulk_insert=         0
+loose_handlersocket_bulk_insert_timeout= 0
+loose_handlersocket_general_log=         1
+loose_handlersocket_timeout=             30
+loose_handlersocket_close_table_interval=2
+open_files_limit=                        4096
+loose_partition=                         1
+
+[ENV]
+USE_GEOMETRY_TEST=        1
+USE_FULLTEXT_TEST=        1
+USE_HA_TEST=              1
+USE_GENERAL_LOG=          1
+USE_REPLICATION=          1
+MASTER_1_MYPORT=          @mysqld.1.1.port
+MASTER_1_HSRPORT=         20000
+MASTER_1_HSWPORT=         20001
+MASTER_1_MYSOCK=          @mysqld.1.1.socket
+MASTER_1_ENGINE_TYPE=     Spider
+#MASTER_1_ENGINE_TYPE=     MyISAM
+MASTER_1_ENGINE=          ENGINE=Spider
+MASTER_1_CHARSET=         DEFAULT CHARSET=utf8
+MASTER_1_ENGINE2=         ENGINE=MyISAM
+MASTER_1_CHARSET2=        DEFAULT CHARSET=utf8
+MASTER_1_CHARSET3=        DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci
+
+STR_SEMICOLON=            ;
+
+#The followings are set in include/init_xxx.inc files
+# MASTER_1_COMMENT_2_1
+# MASTER_1_COMMENT2_2_1
+# MASTER_1_COMMENT3_2_1
+# MASTER_1_COMMENT4_2_1
+# MASTER_1_COMMENT5_2_1
+# MASTER_1_COMMENT_P_2_1
diff --git a/storage/spider/mysql-test/spider/regression/e112122/my_2_1.cnf b/storage/spider/mysql-test/spider/regression/e112122/my_2_1.cnf
new file mode 100644
index 00000000..24161645
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/my_2_1.cnf
@@ -0,0 +1,56 @@
+[mysqld.2.1]
+loose_handlersocket_port=                20002
+loose_handlersocket_port_wr=             20003
+loose_handlersocket_threads=             2
+loose_handlersocket_threads_wr=          1
+loose_handlersocket_support_merge_table= 0
+loose_handlersocket_direct_update_mode=  2
+loose_handlersocket_unlimited_boundary=  65536
+loose_handlersocket_bulk_insert=         0
+loose_handlersocket_bulk_insert_timeout= 0
+loose_handlersocket_general_log=         1
+loose_handlersocket_timeout=             30
+loose_handlersocket_close_table_interval=2
+open_files_limit=                        4096
+
+[ENV]
+USE_CHILD_GROUP2=         1
+OUTPUT_CHILD_GROUP2=      0
+CHILD2_1_MYPORT=          @mysqld.2.1.port
+CHILD2_1_HSRPORT=         20002
+CHILD2_1_HSWPORT=         20003
+CHILD2_1_MYSOCK=          @mysqld.2.1.socket
+CHILD2_1_ENGINE_TYPE=     InnoDB
+CHILD2_1_ENGINE=          ENGINE=InnoDB
+CHILD2_1_CHARSET=         DEFAULT CHARSET=utf8
+CHILD2_1_CHARSET2=        DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci
+CHILD2_1_FT_MYPORT=       @mysqld.2.1.port
+CHILD2_1_FT_MYSOCK=       @mysqld.2.1.socket
+CHILD2_1_FT_ENGINE_TYPE=  MyISAM
+CHILD2_1_FT_ENGINE=       ENGINE=MyISAM
+CHILD2_1_FT_CHARSET=      DEFAULT CHARSET=utf8
+CHILD2_1_GM_MYPORT=       @mysqld.2.1.port
+CHILD2_1_GM_MYSOCK=       @mysqld.2.1.socket
+CHILD2_1_GM_ENGINE_TYPE=  MyISAM
+CHILD2_1_GM_ENGINE=       ENGINE=MyISAM
+CHILD2_1_GM_CHARSET=      DEFAULT CHARSET=utf8
+
+#The followings are set in include/init_xxx.inc files
+# CHILD2_1_DROP_TABLES
+# CHILD2_1_CREATE_TABLES
+# CHILD2_1_SELECT_TABLES
+# CHILD2_1_DROP_TABLES2
+# CHILD2_1_CREATE_TABLES2
+# CHILD2_1_SELECT_TABLES2
+# CHILD2_1_DROP_TABLES3
+# CHILD2_1_CREATE_TABLES3
+# CHILD2_1_SELECT_TABLES3
+# CHILD2_1_DROP_TABLES4
+# CHILD2_1_CREATE_TABLES4
+# CHILD2_1_SELECT_TABLES4
+# CHILD2_1_DROP_TABLES5
+# CHILD2_1_CREATE_TABLES5
+# CHILD2_1_SELECT_TABLES5
+# CHILD2_1_DROP_TABLES6
+# CHILD2_1_CREATE_TABLES6
+# CHILD2_1_SELECT_TABLES6
diff --git a/storage/spider/mysql-test/spider/regression/e112122/my_2_2.cnf b/storage/spider/mysql-test/spider/regression/e112122/my_2_2.cnf
new file mode 100644
index 00000000..2d3c2a89
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/my_2_2.cnf
@@ -0,0 +1,38 @@
+[mysqld.2.2]
+loose_handlersocket_port=                20004
+loose_handlersocket_port_wr=             20005
+loose_handlersocket_threads=             2
+loose_handlersocket_threads_wr=          1
+loose_handlersocket_support_merge_table= 0
+loose_handlersocket_direct_update_mode=  2
+loose_handlersocket_unlimited_boundary=  65536
+loose_handlersocket_bulk_insert=         0
+loose_handlersocket_bulk_insert_timeout= 0
+loose_handlersocket_general_log=         1
+loose_handlersocket_timeout=             30
+loose_handlersocket_close_table_interval=2
+open_files_limit=                        4096
+
+[ENV]
+CHILD2_2_MYPORT=          @mysqld.2.2.port
+CHILD2_2_HSRPORT=         20004
+CHILD2_2_HSWPORT=         20005
+CHILD2_2_MYSOCK=          @mysqld.2.2.socket
+CHILD2_2_ENGINE_TYPE=     InnoDB
+CHILD2_2_ENGINE=          ENGINE=InnoDB
+CHILD2_2_CHARSET=         DEFAULT CHARSET=utf8
+CHILD2_2_FT_MYPORT=       @mysqld.2.2.port
+CHILD2_2_FT_MYSOCK=       @mysqld.2.2.socket
+CHILD2_2_FT_ENGINE_TYPE=  MyISAM
+CHILD2_2_FT_ENGINE=       ENGINE=MyISAM
+CHILD2_2_FT_CHARSET=      DEFAULT CHARSET=utf8
+CHILD2_2_GM_MYPORT=       @mysqld.2.2.port
+CHILD2_2_GM_MYSOCK=       @mysqld.2.2.socket
+CHILD2_2_GM_ENGINE_TYPE=  MyISAM
+CHILD2_2_GM_ENGINE=       ENGINE=MyISAM
+CHILD2_2_GM_CHARSET=      DEFAULT CHARSET=utf8
+
+#The followings are set in include/init_xxx.inc files
+# CHILD2_2_DROP_TABLES
+# CHILD2_2_CREATE_TABLES
+# CHILD2_2_SELECT_TABLES
diff --git a/storage/spider/mysql-test/spider/regression/e112122/r/group_by_order_by_limit_ok.result b/storage/spider/mysql-test/spider/regression/e112122/r/group_by_order_by_limit_ok.result
new file mode 100644
index 00000000..96746e09
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/r/group_by_order_by_limit_ok.result
@@ -0,0 +1,117 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+this test is for MDEV-18988
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+CHILD2_2_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+skey int NOT NULL,
+KEY idx1 (pkey),
+KEY idx2 (skey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey,skey) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+INSERT INTO tbl_a (pkey,skey) VALUES (10,10),(11,11),(12,12),(13,13),(14,14),(15,15),(16,16),(17,17),(18,18),(19,19);
+INSERT INTO tbl_a (pkey,skey) VALUES (20,5),(21,6),(22,7),(23,8),(24,9),(25,10),(26,11),(27,12),(28,13),(29,14);
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+SELECT skey, count(*) cnt FROM tbl_a GROUP BY skey ORDER BY cnt DESC, skey DESC LIMIT 5;
+skey	cnt
+14	2
+13	2
+12	2
+11	2
+10	2
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select count(0),`skey` from `auto_test_remote`.`tbl_a` group by `skey` order by count(0) desc,`skey` desc limit 5
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey, skey FROM tbl_a ORDER BY pkey;
+pkey	skey
+1	1
+3	3
+5	5
+7	7
+9	9
+11	11
+13	13
+15	15
+17	17
+19	19
+20	5
+22	7
+24	9
+26	11
+28	13
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+argument
+select count(0),`skey` from `auto_test_remote2`.`tbl_a` group by `skey` order by count(0) desc,`skey` desc limit 5
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %'
+SELECT pkey, skey FROM tbl_a ORDER BY pkey;
+pkey	skey
+0	0
+2	2
+4	4
+6	6
+8	8
+10	10
+12	12
+14	14
+16	16
+18	18
+21	6
+23	8
+25	10
+27	12
+29	14
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_ddi0.result b/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_ddi0.result
new file mode 100644
index 00000000..23753239
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_ddi0.result
@@ -0,0 +1,95 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_direct_dup_insert= @@spider_direct_dup_insert;
+set session spider_direct_dup_insert= 0;
+
+this test is for MDEV-18987
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+CHILD2_2_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+val int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey,val) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+SELECT pkey,val INTO OUTFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' FROM tbl_a ORDER BY pkey;
+TRUNCATE tbl_a;
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+LOAD DATA  INFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv'  INTO TABLE tbl_a;
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(1,1),(3,3),(5,5),(7,7),(9,9)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+1	1
+3	3
+5	5
+7	7
+9	9
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+insert high_priority into `auto_test_remote2`.`tbl_a`(`pkey`,`val`)values(0,0),(2,2),(4,4),(6,6),(8,8)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+0	0
+2	2
+4	4
+6	6
+8	8
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_direct_dup_insert= @old_spider_direct_dup_insert;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_ddi1.result b/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_ddi1.result
new file mode 100644
index 00000000..c30a5c03
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_ddi1.result
@@ -0,0 +1,95 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_direct_dup_insert= @@spider_direct_dup_insert;
+set session spider_direct_dup_insert= 1;
+
+this test is for MDEV-18987
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+CHILD2_2_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+val int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey,val) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+SELECT pkey,val INTO OUTFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' FROM tbl_a ORDER BY pkey;
+TRUNCATE tbl_a;
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+LOAD DATA  INFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv'  INTO TABLE tbl_a;
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(1,1),(3,3),(5,5),(7,7),(9,9)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+1	1
+3	3
+5	5
+7	7
+9	9
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+insert high_priority into `auto_test_remote2`.`tbl_a`(`pkey`,`val`)values(0,0),(2,2),(4,4),(6,6),(8,8)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+0	0
+2	2
+4	4
+6	6
+8	8
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_direct_dup_insert= @old_spider_direct_dup_insert;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_ignore_ddi0.result b/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_ignore_ddi0.result
new file mode 100644
index 00000000..0071042c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_ignore_ddi0.result
@@ -0,0 +1,114 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_direct_dup_insert= @@spider_direct_dup_insert;
+set session spider_direct_dup_insert= 0;
+
+this test is for MDEV-18987
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+CHILD2_2_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+val int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey,val) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+SELECT pkey,val INTO OUTFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' FROM tbl_a ORDER BY pkey;
+UPDATE tbl_a SET val = val + 1;
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+LOAD DATA  INFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' IGNORE INTO TABLE tbl_a;
+Warnings:
+Warning	1062	Duplicate entry '0' for key 'PRIMARY'
+Warning	1062	Duplicate entry '1' for key 'PRIMARY'
+Warning	1062	Duplicate entry '2' for key 'PRIMARY'
+Warning	1062	Duplicate entry '3' for key 'PRIMARY'
+Warning	1062	Duplicate entry '4' for key 'PRIMARY'
+Warning	1062	Duplicate entry '5' for key 'PRIMARY'
+Warning	1062	Duplicate entry '6' for key 'PRIMARY'
+Warning	1062	Duplicate entry '7' for key 'PRIMARY'
+Warning	1062	Duplicate entry '8' for key 'PRIMARY'
+Warning	1062	Duplicate entry '9' for key 'PRIMARY'
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(1,1)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(3,3)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(5,5)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(7,7)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(9,9)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+1	2
+3	4
+5	6
+7	8
+9	10
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+insert high_priority into `auto_test_remote2`.`tbl_a`(`pkey`,`val`)values(0,0)
+insert high_priority into `auto_test_remote2`.`tbl_a`(`pkey`,`val`)values(2,2)
+insert high_priority into `auto_test_remote2`.`tbl_a`(`pkey`,`val`)values(4,4)
+insert high_priority into `auto_test_remote2`.`tbl_a`(`pkey`,`val`)values(6,6)
+insert high_priority into `auto_test_remote2`.`tbl_a`(`pkey`,`val`)values(8,8)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+0	1
+2	3
+4	5
+6	7
+8	9
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_direct_dup_insert= @old_spider_direct_dup_insert;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_ignore_ddi1.result b/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_ignore_ddi1.result
new file mode 100644
index 00000000..9f2e8dec
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_ignore_ddi1.result
@@ -0,0 +1,95 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_direct_dup_insert= @@spider_direct_dup_insert;
+set session spider_direct_dup_insert= 1;
+
+this test is for MDEV-18987
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+CHILD2_2_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+val int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey,val) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+SELECT pkey,val INTO OUTFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' FROM tbl_a ORDER BY pkey;
+UPDATE tbl_a SET val = val + 1;
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+LOAD DATA  INFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' IGNORE INTO TABLE tbl_a;
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+insert high_priority ignore into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(1,1),(3,3),(5,5),(7,7),(9,9)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+1	2
+3	4
+5	6
+7	8
+9	10
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+insert high_priority ignore into `auto_test_remote2`.`tbl_a`(`pkey`,`val`)values(0,0),(2,2),(4,4),(6,6),(8,8)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+0	1
+2	3
+4	5
+6	7
+8	9
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_direct_dup_insert= @old_spider_direct_dup_insert;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_local_ddi0.result b/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_local_ddi0.result
new file mode 100644
index 00000000..7ec2b5b0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_local_ddi0.result
@@ -0,0 +1,103 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_direct_dup_insert= @@spider_direct_dup_insert;
+set session spider_direct_dup_insert= 0;
+
+this test is for MDEV-18987
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+CHILD2_2_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+val int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey,val) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+SELECT pkey,val INTO OUTFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' FROM tbl_a ORDER BY pkey;
+TRUNCATE tbl_a;
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+LOAD DATA LOCAL INFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv'  INTO TABLE tbl_a;
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(1,1)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(3,3)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(5,5)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(7,7)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(9,9)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+1	1
+3	3
+5	5
+7	7
+9	9
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+insert high_priority into `auto_test_remote2`.`tbl_a`(`pkey`,`val`)values(0,0)
+insert high_priority into `auto_test_remote2`.`tbl_a`(`pkey`,`val`)values(2,2)
+insert high_priority into `auto_test_remote2`.`tbl_a`(`pkey`,`val`)values(4,4)
+insert high_priority into `auto_test_remote2`.`tbl_a`(`pkey`,`val`)values(6,6)
+insert high_priority into `auto_test_remote2`.`tbl_a`(`pkey`,`val`)values(8,8)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+0	0
+2	2
+4	4
+6	6
+8	8
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_direct_dup_insert= @old_spider_direct_dup_insert;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_local_ddi1.result b/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_local_ddi1.result
new file mode 100644
index 00000000..f908ce1c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_local_ddi1.result
@@ -0,0 +1,95 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_direct_dup_insert= @@spider_direct_dup_insert;
+set session spider_direct_dup_insert= 1;
+
+this test is for MDEV-18987
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+CHILD2_2_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+val int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey,val) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+SELECT pkey,val INTO OUTFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' FROM tbl_a ORDER BY pkey;
+TRUNCATE tbl_a;
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+LOAD DATA LOCAL INFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv'  INTO TABLE tbl_a;
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+insert high_priority ignore into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(1,1),(3,3),(5,5),(7,7),(9,9)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+1	1
+3	3
+5	5
+7	7
+9	9
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+insert high_priority ignore into `auto_test_remote2`.`tbl_a`(`pkey`,`val`)values(0,0),(2,2),(4,4),(6,6),(8,8)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+0	0
+2	2
+4	4
+6	6
+8	8
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_direct_dup_insert= @old_spider_direct_dup_insert;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_local_ignore_ddi0.result b/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_local_ignore_ddi0.result
new file mode 100644
index 00000000..c0a8f653
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_local_ignore_ddi0.result
@@ -0,0 +1,114 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_direct_dup_insert= @@spider_direct_dup_insert;
+set session spider_direct_dup_insert= 0;
+
+this test is for MDEV-18987
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+CHILD2_2_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+val int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey,val) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+SELECT pkey,val INTO OUTFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' FROM tbl_a ORDER BY pkey;
+UPDATE tbl_a SET val = val + 1;
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+LOAD DATA LOCAL INFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' IGNORE INTO TABLE tbl_a;
+Warnings:
+Warning	1062	Duplicate entry '0' for key 'PRIMARY'
+Warning	1062	Duplicate entry '1' for key 'PRIMARY'
+Warning	1062	Duplicate entry '2' for key 'PRIMARY'
+Warning	1062	Duplicate entry '3' for key 'PRIMARY'
+Warning	1062	Duplicate entry '4' for key 'PRIMARY'
+Warning	1062	Duplicate entry '5' for key 'PRIMARY'
+Warning	1062	Duplicate entry '6' for key 'PRIMARY'
+Warning	1062	Duplicate entry '7' for key 'PRIMARY'
+Warning	1062	Duplicate entry '8' for key 'PRIMARY'
+Warning	1062	Duplicate entry '9' for key 'PRIMARY'
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(1,1)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(3,3)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(5,5)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(7,7)
+insert high_priority into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(9,9)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+1	2
+3	4
+5	6
+7	8
+9	10
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+insert high_priority into `auto_test_remote2`.`tbl_a`(`pkey`,`val`)values(0,0)
+insert high_priority into `auto_test_remote2`.`tbl_a`(`pkey`,`val`)values(2,2)
+insert high_priority into `auto_test_remote2`.`tbl_a`(`pkey`,`val`)values(4,4)
+insert high_priority into `auto_test_remote2`.`tbl_a`(`pkey`,`val`)values(6,6)
+insert high_priority into `auto_test_remote2`.`tbl_a`(`pkey`,`val`)values(8,8)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+0	1
+2	3
+4	5
+6	7
+8	9
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_direct_dup_insert= @old_spider_direct_dup_insert;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_local_ignore_ddi1.result b/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_local_ignore_ddi1.result
new file mode 100644
index 00000000..619dd789
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_local_ignore_ddi1.result
@@ -0,0 +1,95 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_direct_dup_insert= @@spider_direct_dup_insert;
+set session spider_direct_dup_insert= 1;
+
+this test is for MDEV-18987
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+CHILD2_2_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+val int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey,val) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+SELECT pkey,val INTO OUTFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' FROM tbl_a ORDER BY pkey;
+UPDATE tbl_a SET val = val + 1;
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+LOAD DATA LOCAL INFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' IGNORE INTO TABLE tbl_a;
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+insert high_priority ignore into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(1,1),(3,3),(5,5),(7,7),(9,9)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+1	2
+3	4
+5	6
+7	8
+9	10
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+insert high_priority ignore into `auto_test_remote2`.`tbl_a`(`pkey`,`val`)values(0,0),(2,2),(4,4),(6,6),(8,8)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+0	1
+2	3
+4	5
+6	7
+8	9
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_direct_dup_insert= @old_spider_direct_dup_insert;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_local_replace_ddi0.result b/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_local_replace_ddi0.result
new file mode 100644
index 00000000..e12e380b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_local_replace_ddi0.result
@@ -0,0 +1,123 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_direct_dup_insert= @@spider_direct_dup_insert;
+set session spider_direct_dup_insert= 0;
+
+this test is for MDEV-18987
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+CHILD2_2_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+val int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey,val) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+SELECT pkey,val INTO OUTFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' FROM tbl_a ORDER BY pkey;
+UPDATE tbl_a SET val = val + 1;
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+LOAD DATA LOCAL INFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' REPLACE INTO TABLE tbl_a;
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+insert into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(1,1)
+select `pkey`,`val` from `auto_test_remote`.`tbl_a` where `pkey` = 1 for update
+update ignore `auto_test_remote`.`tbl_a` set `pkey` = 1,`val` = 1 where `pkey` = 1 and `val` = 2 limit 1
+insert into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(3,3)
+select `pkey`,`val` from `auto_test_remote`.`tbl_a` where `pkey` = 3 for update
+update ignore `auto_test_remote`.`tbl_a` set `pkey` = 3,`val` = 3 where `pkey` = 3 and `val` = 4 limit 1
+insert into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(5,5)
+select `pkey`,`val` from `auto_test_remote`.`tbl_a` where `pkey` = 5 for update
+update ignore `auto_test_remote`.`tbl_a` set `pkey` = 5,`val` = 5 where `pkey` = 5 and `val` = 6 limit 1
+insert into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(7,7)
+select `pkey`,`val` from `auto_test_remote`.`tbl_a` where `pkey` = 7 for update
+update ignore `auto_test_remote`.`tbl_a` set `pkey` = 7,`val` = 7 where `pkey` = 7 and `val` = 8 limit 1
+insert into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(9,9)
+select `pkey`,`val` from `auto_test_remote`.`tbl_a` where `pkey` = 9 for update
+update ignore `auto_test_remote`.`tbl_a` set `pkey` = 9,`val` = 9 where `pkey` = 9 and `val` = 10 limit 1
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+1	1
+3	3
+5	5
+7	7
+9	9
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+insert into `auto_test_remote2`.`tbl_a`(`pkey`,`val`)values(0,0)
+select `pkey`,`val` from `auto_test_remote2`.`tbl_a` where `pkey` = 0 for update
+update ignore `auto_test_remote2`.`tbl_a` set `pkey` = 0,`val` = 0 where `pkey` = 0 and `val` = 1 limit 1
+insert into `auto_test_remote2`.`tbl_a`(`pkey`,`val`)values(2,2)
+select `pkey`,`val` from `auto_test_remote2`.`tbl_a` where `pkey` = 2 for update
+update ignore `auto_test_remote2`.`tbl_a` set `pkey` = 2,`val` = 2 where `pkey` = 2 and `val` = 3 limit 1
+insert into `auto_test_remote2`.`tbl_a`(`pkey`,`val`)values(4,4)
+select `pkey`,`val` from `auto_test_remote2`.`tbl_a` where `pkey` = 4 for update
+update ignore `auto_test_remote2`.`tbl_a` set `pkey` = 4,`val` = 4 where `pkey` = 4 and `val` = 5 limit 1
+insert into `auto_test_remote2`.`tbl_a`(`pkey`,`val`)values(6,6)
+select `pkey`,`val` from `auto_test_remote2`.`tbl_a` where `pkey` = 6 for update
+update ignore `auto_test_remote2`.`tbl_a` set `pkey` = 6,`val` = 6 where `pkey` = 6 and `val` = 7 limit 1
+insert into `auto_test_remote2`.`tbl_a`(`pkey`,`val`)values(8,8)
+select `pkey`,`val` from `auto_test_remote2`.`tbl_a` where `pkey` = 8 for update
+update ignore `auto_test_remote2`.`tbl_a` set `pkey` = 8,`val` = 8 where `pkey` = 8 and `val` = 9 limit 1
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+0	0
+2	2
+4	4
+6	6
+8	8
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_direct_dup_insert= @old_spider_direct_dup_insert;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_local_replace_ddi1.result b/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_local_replace_ddi1.result
new file mode 100644
index 00000000..d367cbfd
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_local_replace_ddi1.result
@@ -0,0 +1,95 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_direct_dup_insert= @@spider_direct_dup_insert;
+set session spider_direct_dup_insert= 1;
+
+this test is for MDEV-18987
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+CHILD2_2_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+val int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey,val) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+SELECT pkey,val INTO OUTFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' FROM tbl_a ORDER BY pkey;
+UPDATE tbl_a SET val = val + 1;
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+LOAD DATA LOCAL INFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' REPLACE INTO TABLE tbl_a;
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+replace into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(1,1),(3,3),(5,5),(7,7),(9,9)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+1	1
+3	3
+5	5
+7	7
+9	9
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+replace into `auto_test_remote2`.`tbl_a`(`pkey`,`val`)values(0,0),(2,2),(4,4),(6,6),(8,8)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+0	0
+2	2
+4	4
+6	6
+8	8
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_direct_dup_insert= @old_spider_direct_dup_insert;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_replace_ddi0.result b/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_replace_ddi0.result
new file mode 100644
index 00000000..039a8dd4
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_replace_ddi0.result
@@ -0,0 +1,123 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_direct_dup_insert= @@spider_direct_dup_insert;
+set session spider_direct_dup_insert= 0;
+
+this test is for MDEV-18987
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+CHILD2_2_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+val int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey,val) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+SELECT pkey,val INTO OUTFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' FROM tbl_a ORDER BY pkey;
+UPDATE tbl_a SET val = val + 1;
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+LOAD DATA  INFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' REPLACE INTO TABLE tbl_a;
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+insert into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(1,1)
+select `pkey`,`val` from `auto_test_remote`.`tbl_a` where `pkey` = 1 for update
+update ignore `auto_test_remote`.`tbl_a` set `pkey` = 1,`val` = 1 where `pkey` = 1 and `val` = 2 limit 1
+insert into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(3,3)
+select `pkey`,`val` from `auto_test_remote`.`tbl_a` where `pkey` = 3 for update
+update ignore `auto_test_remote`.`tbl_a` set `pkey` = 3,`val` = 3 where `pkey` = 3 and `val` = 4 limit 1
+insert into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(5,5)
+select `pkey`,`val` from `auto_test_remote`.`tbl_a` where `pkey` = 5 for update
+update ignore `auto_test_remote`.`tbl_a` set `pkey` = 5,`val` = 5 where `pkey` = 5 and `val` = 6 limit 1
+insert into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(7,7)
+select `pkey`,`val` from `auto_test_remote`.`tbl_a` where `pkey` = 7 for update
+update ignore `auto_test_remote`.`tbl_a` set `pkey` = 7,`val` = 7 where `pkey` = 7 and `val` = 8 limit 1
+insert into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(9,9)
+select `pkey`,`val` from `auto_test_remote`.`tbl_a` where `pkey` = 9 for update
+update ignore `auto_test_remote`.`tbl_a` set `pkey` = 9,`val` = 9 where `pkey` = 9 and `val` = 10 limit 1
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+1	1
+3	3
+5	5
+7	7
+9	9
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+insert into `auto_test_remote2`.`tbl_a`(`pkey`,`val`)values(0,0)
+select `pkey`,`val` from `auto_test_remote2`.`tbl_a` where `pkey` = 0 for update
+update ignore `auto_test_remote2`.`tbl_a` set `pkey` = 0,`val` = 0 where `pkey` = 0 and `val` = 1 limit 1
+insert into `auto_test_remote2`.`tbl_a`(`pkey`,`val`)values(2,2)
+select `pkey`,`val` from `auto_test_remote2`.`tbl_a` where `pkey` = 2 for update
+update ignore `auto_test_remote2`.`tbl_a` set `pkey` = 2,`val` = 2 where `pkey` = 2 and `val` = 3 limit 1
+insert into `auto_test_remote2`.`tbl_a`(`pkey`,`val`)values(4,4)
+select `pkey`,`val` from `auto_test_remote2`.`tbl_a` where `pkey` = 4 for update
+update ignore `auto_test_remote2`.`tbl_a` set `pkey` = 4,`val` = 4 where `pkey` = 4 and `val` = 5 limit 1
+insert into `auto_test_remote2`.`tbl_a`(`pkey`,`val`)values(6,6)
+select `pkey`,`val` from `auto_test_remote2`.`tbl_a` where `pkey` = 6 for update
+update ignore `auto_test_remote2`.`tbl_a` set `pkey` = 6,`val` = 6 where `pkey` = 6 and `val` = 7 limit 1
+insert into `auto_test_remote2`.`tbl_a`(`pkey`,`val`)values(8,8)
+select `pkey`,`val` from `auto_test_remote2`.`tbl_a` where `pkey` = 8 for update
+update ignore `auto_test_remote2`.`tbl_a` set `pkey` = 8,`val` = 8 where `pkey` = 8 and `val` = 9 limit 1
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+0	0
+2	2
+4	4
+6	6
+8	8
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_direct_dup_insert= @old_spider_direct_dup_insert;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_replace_ddi1.result b/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_replace_ddi1.result
new file mode 100644
index 00000000..c8155be9
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/r/load_data_part_replace_ddi1.result
@@ -0,0 +1,95 @@
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection master_1;
+set @old_spider_direct_dup_insert= @@spider_direct_dup_insert;
+set session spider_direct_dup_insert= 1;
+
+this test is for MDEV-18987
+
+drop and create databases
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+connection child2_1;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+connection child2_2;
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+
+create table and insert
+connection child2_1;
+CHILD2_1_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+CHILD2_2_CREATE_TABLES
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE TABLE tbl_a (
+pkey int NOT NULL,
+val int NOT NULL,
+PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+INSERT INTO tbl_a (pkey,val) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+SELECT pkey,val INTO OUTFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' FROM tbl_a ORDER BY pkey;
+UPDATE tbl_a SET val = val + 1;
+
+select test 1
+connection child2_1;
+TRUNCATE TABLE mysql.general_log;
+connection child2_2;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+LOAD DATA  INFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' REPLACE INTO TABLE tbl_a;
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+replace into `auto_test_remote`.`tbl_a`(`pkey`,`val`)values(1,1),(3,3),(5,5),(7,7),(9,9)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+1	1
+3	3
+5	5
+7	7
+9	9
+connection child2_2;
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%';
+argument
+replace into `auto_test_remote2`.`tbl_a`(`pkey`,`val`)values(0,0),(2,2),(4,4),(6,6),(8,8)
+SELECT argument FROM mysql.general_log WHERE argument LIKE '%`tbl_a`%'
+SELECT pkey, val FROM tbl_a ORDER BY pkey;
+pkey	val
+0	0
+2	2
+4	4
+6	6
+8	8
+
+deinit
+connection master_1;
+DROP DATABASE IF EXISTS auto_test_local;
+connection child2_1;
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+connection child2_2;
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+connection master_1;
+set session spider_direct_dup_insert= @old_spider_direct_dup_insert;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+
+end of test
diff --git a/storage/spider/mysql-test/spider/regression/e112122/suite.opt b/storage/spider/mysql-test/spider/regression/e112122/suite.opt
new file mode 100644
index 00000000..672a3b37
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/suite.opt
@@ -0,0 +1 @@
+--loose-innodb --loose-skip-performance-schema
diff --git a/storage/spider/mysql-test/spider/regression/e112122/suite.pm b/storage/spider/mysql-test/spider/regression/e112122/suite.pm
new file mode 100644
index 00000000..171fa6c4
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/suite.pm
@@ -0,0 +1,11 @@
+package My::Suite::Spider;
+
+@ISA = qw(My::Suite);
+
+return "No Spider engine" unless $ENV{HA_SPIDER_SO};
+return "Not run for embedded server" if $::opt_embedded_server;
+
+sub is_default { 1 }
+
+bless { };
+
diff --git a/storage/spider/mysql-test/spider/regression/e112122/t/group_by_order_by_limit_ok.test b/storage/spider/mysql-test/spider/regression/e112122/t/group_by_order_by_limit_ok.test
new file mode 100644
index 00000000..2a70098e
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/t/group_by_order_by_limit_ok.test
@@ -0,0 +1,97 @@
+--source ../include/group_by_order_by_limit_ok_init.inc
+--echo
+--echo this test is for MDEV-18988
+--echo
+--echo drop and create databases
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection child2_1
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+--connection child2_2
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+--enable_warnings
+
+--echo
+--echo create table and insert
+
+--connection child2_1
+--disable_query_log
+echo CHILD2_1_CREATE_TABLES;
+eval $CHILD2_1_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection child2_2
+--disable_query_log
+echo CHILD2_2_CREATE_TABLES;
+eval $CHILD2_2_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    skey int NOT NULL,
+    KEY idx1 (pkey),
+    KEY idx2 (skey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    skey int NOT NULL,
+    KEY idx1 (pkey),
+    KEY idx2 (skey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO tbl_a (pkey,skey) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+INSERT INTO tbl_a (pkey,skey) VALUES (10,10),(11,11),(12,12),(13,13),(14,14),(15,15),(16,16),(17,17),(18,18),(19,19);
+INSERT INTO tbl_a (pkey,skey) VALUES (20,5),(21,6),(22,7),(23,8),(24,9),(25,10),(26,11),(27,12),(28,13),(29,14);
+
+--echo
+--echo select test 1
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--connection child2_2
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+SELECT skey, count(*) cnt FROM tbl_a GROUP BY skey ORDER BY cnt DESC, skey DESC LIMIT 5;
+
+--connection child2_1
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+
+--connection child2_2
+eval $CHILD2_2_SELECT_ARGUMENT1;
+eval $CHILD2_2_SELECT_TABLES;
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection child2_1
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+
+--connection child2_2
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+
+--enable_warnings
+--source ../include/group_by_order_by_limit_ok_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part.inc b/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part.inc
new file mode 100644
index 00000000..e66550f9
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part.inc
@@ -0,0 +1,100 @@
+--echo
+--echo this test is for MDEV-18987
+--echo
+--echo drop and create databases
+
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+--connection child2_1
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+--connection child2_2
+SET @old_log_output = @@global.log_output;
+SET GLOBAL log_output = 'TABLE,FILE';
+CREATE DATABASE auto_test_remote2;
+USE auto_test_remote2;
+--enable_warnings
+
+--echo
+--echo create table and insert
+
+--connection child2_1
+--disable_query_log
+echo CHILD2_1_CREATE_TABLES;
+eval $CHILD2_1_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection child2_2
+--disable_query_log
+echo CHILD2_2_CREATE_TABLES;
+eval $CHILD2_2_CREATE_TABLES;
+--enable_query_log
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    val int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    val int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO tbl_a (pkey,val) VALUES (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
+--disable_query_log
+--echo SELECT pkey,val INTO OUTFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' FROM tbl_a ORDER BY pkey;
+eval SELECT pkey,val INTO OUTFILE '$MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' FROM tbl_a ORDER BY pkey;
+--enable_query_log
+eval $COMMAND_BEFORE_LOAD_DATA;
+
+--echo
+--echo select test 1
+
+--connection child2_1
+TRUNCATE TABLE mysql.general_log;
+
+--connection child2_2
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+--disable_query_log
+--echo LOAD DATA $OPTION_LOCAL INFILE 'MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' $OPTION_WORD INTO TABLE tbl_a;
+eval LOAD DATA $OPTION_LOCAL INFILE '$MYSQLTEST_VARDIR/tmp/spider_outfile.tsv' $OPTION_WORD INTO TABLE tbl_a;
+--enable_query_log
+--remove_file $MYSQLTEST_VARDIR/tmp/spider_outfile.tsv
+
+--connection child2_1
+eval $CHILD2_1_SELECT_ARGUMENT1;
+eval $CHILD2_1_SELECT_TABLES;
+
+--connection child2_2
+eval $CHILD2_2_SELECT_ARGUMENT1;
+eval $CHILD2_2_SELECT_TABLES;
+
+--echo
+--echo deinit
+--disable_warnings
+
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+
+--connection child2_1
+DROP DATABASE IF EXISTS auto_test_remote;
+SET GLOBAL log_output = @old_log_output;
+
+--connection child2_2
+DROP DATABASE IF EXISTS auto_test_remote2;
+SET GLOBAL log_output = @old_log_output;
+
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_ddi0.test b/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_ddi0.test
new file mode 100644
index 00000000..b7852909
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_ddi0.test
@@ -0,0 +1,8 @@
+--source ../include/load_data_part_ddi0_init.inc
+--let COMMAND_BEFORE_LOAD_DATA= TRUNCATE tbl_a
+--let OPTION_LOCAL=
+--let OPTION_WORD=
+--source load_data_part.inc
+--source ../include/load_data_part_ddi0_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_ddi1.test b/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_ddi1.test
new file mode 100644
index 00000000..a2540077
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_ddi1.test
@@ -0,0 +1,8 @@
+--source ../include/load_data_part_ddi1_init.inc
+--let COMMAND_BEFORE_LOAD_DATA= TRUNCATE tbl_a
+--let OPTION_LOCAL=
+--let OPTION_WORD=
+--source load_data_part.inc
+--source ../include/load_data_part_ddi1_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_ignore_ddi0.test b/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_ignore_ddi0.test
new file mode 100644
index 00000000..a6fb58d6
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_ignore_ddi0.test
@@ -0,0 +1,8 @@
+--source ../include/load_data_part_ddi0_init.inc
+--let COMMAND_BEFORE_LOAD_DATA= UPDATE tbl_a SET val = val + 1
+--let OPTION_LOCAL=
+--let OPTION_WORD= IGNORE
+--source load_data_part.inc
+--source ../include/load_data_part_ddi0_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_ignore_ddi1.test b/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_ignore_ddi1.test
new file mode 100644
index 00000000..b9f75894
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_ignore_ddi1.test
@@ -0,0 +1,8 @@
+--source ../include/load_data_part_ddi1_init.inc
+--let COMMAND_BEFORE_LOAD_DATA= UPDATE tbl_a SET val = val + 1
+--let OPTION_LOCAL=
+--let OPTION_WORD= IGNORE
+--source load_data_part.inc
+--source ../include/load_data_part_ddi1_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_local_ddi0.test b/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_local_ddi0.test
new file mode 100644
index 00000000..f44f7ae9
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_local_ddi0.test
@@ -0,0 +1,8 @@
+--source ../include/load_data_part_ddi0_init.inc
+--let COMMAND_BEFORE_LOAD_DATA= TRUNCATE tbl_a
+--let OPTION_LOCAL= LOCAL
+--let OPTION_WORD=
+--source load_data_part.inc
+--source ../include/load_data_part_ddi0_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_local_ddi1.test b/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_local_ddi1.test
new file mode 100644
index 00000000..4c806096
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_local_ddi1.test
@@ -0,0 +1,8 @@
+--source ../include/load_data_part_ddi1_init.inc
+--let COMMAND_BEFORE_LOAD_DATA= TRUNCATE tbl_a
+--let OPTION_LOCAL= LOCAL
+--let OPTION_WORD=
+--source load_data_part.inc
+--source ../include/load_data_part_ddi1_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_local_ignore_ddi0.test b/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_local_ignore_ddi0.test
new file mode 100644
index 00000000..179bab5b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_local_ignore_ddi0.test
@@ -0,0 +1,8 @@
+--source ../include/load_data_part_ddi0_init.inc
+--let COMMAND_BEFORE_LOAD_DATA= UPDATE tbl_a SET val = val + 1
+--let OPTION_LOCAL= LOCAL
+--let OPTION_WORD= IGNORE
+--source load_data_part.inc
+--source ../include/load_data_part_ddi0_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_local_ignore_ddi1.test b/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_local_ignore_ddi1.test
new file mode 100644
index 00000000..cd7d8215
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_local_ignore_ddi1.test
@@ -0,0 +1,8 @@
+--source ../include/load_data_part_ddi1_init.inc
+--let COMMAND_BEFORE_LOAD_DATA= UPDATE tbl_a SET val = val + 1
+--let OPTION_LOCAL= LOCAL
+--let OPTION_WORD= IGNORE
+--source load_data_part.inc
+--source ../include/load_data_part_ddi1_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_local_replace_ddi0.test b/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_local_replace_ddi0.test
new file mode 100644
index 00000000..5df3f420
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_local_replace_ddi0.test
@@ -0,0 +1,8 @@
+--source ../include/load_data_part_ddi0_init.inc
+--let COMMAND_BEFORE_LOAD_DATA= UPDATE tbl_a SET val = val + 1
+--let OPTION_LOCAL= LOCAL
+--let OPTION_WORD= REPLACE
+--source load_data_part.inc
+--source ../include/load_data_part_ddi0_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_local_replace_ddi1.test b/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_local_replace_ddi1.test
new file mode 100644
index 00000000..bf3c7c93
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_local_replace_ddi1.test
@@ -0,0 +1,8 @@
+--source ../include/load_data_part_ddi1_init.inc
+--let COMMAND_BEFORE_LOAD_DATA= UPDATE tbl_a SET val = val + 1
+--let OPTION_LOCAL= LOCAL
+--let OPTION_WORD= REPLACE
+--source load_data_part.inc
+--source ../include/load_data_part_ddi1_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_replace_ddi0.test b/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_replace_ddi0.test
new file mode 100644
index 00000000..910b7e81
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_replace_ddi0.test
@@ -0,0 +1,8 @@
+--source ../include/load_data_part_ddi0_init.inc
+--let COMMAND_BEFORE_LOAD_DATA= UPDATE tbl_a SET val = val + 1
+--let OPTION_LOCAL=
+--let OPTION_WORD= REPLACE
+--source load_data_part.inc
+--source ../include/load_data_part_ddi0_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_replace_ddi1.test b/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_replace_ddi1.test
new file mode 100644
index 00000000..fc84bf14
--- /dev/null
+++ b/storage/spider/mysql-test/spider/regression/e112122/t/load_data_part_replace_ddi1.test
@@ -0,0 +1,8 @@
+--source ../include/load_data_part_ddi1_init.inc
+--let COMMAND_BEFORE_LOAD_DATA= UPDATE tbl_a SET val = val + 1
+--let OPTION_LOCAL=
+--let OPTION_WORD= REPLACE
+--source load_data_part.inc
+--source ../include/load_data_part_ddi1_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/suite.opt b/storage/spider/mysql-test/spider/suite.opt
new file mode 100644
index 00000000..672a3b37
--- /dev/null
+++ b/storage/spider/mysql-test/spider/suite.opt
@@ -0,0 +1 @@
+--loose-innodb --loose-skip-performance-schema
diff --git a/storage/spider/mysql-test/spider/suite.pm b/storage/spider/mysql-test/spider/suite.pm
new file mode 100644
index 00000000..171fa6c4
--- /dev/null
+++ b/storage/spider/mysql-test/spider/suite.pm
@@ -0,0 +1,11 @@
+package My::Suite::Spider;
+
+@ISA = qw(My::Suite);
+
+return "No Spider engine" unless $ENV{HA_SPIDER_SO};
+return "Not run for embedded server" if $::opt_embedded_server;
+
+sub is_default { 1 }
+
+bless { };
+
diff --git a/storage/spider/mysql-test/spider/t/auto_increment.test b/storage/spider/mysql-test/spider/t/auto_increment.test
new file mode 100644
index 00000000..12d93ca3
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/auto_increment.test
@@ -0,0 +1,185 @@
+--source auto_increment_init.inc
+
+--echo
+--echo drop and create databases
+--connection master_1
+--disable_warnings
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tbl_a;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tbl_a (
+  col_a INT NOT NULL AUTO_INCREMENT,
+  col_b VARCHAR(20) DEFAULT 'defg',
+  col_c INT NOT NULL DEFAULT 100,
+  PRIMARY KEY(col_a)
+) MASTER_1_ENGINE MASTER_1_AUTO_INCREMENT_2_1 MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+  col_a INT NOT NULL AUTO_INCREMENT,
+  col_b VARCHAR(20) DEFAULT 'defg',
+  col_c INT NOT NULL DEFAULT 100,
+  PRIMARY KEY(col_a)
+) $MASTER_1_ENGINE $MASTER_1_AUTO_INCREMENT_2_1 $MASTER_1_COMMENT_2_1;
+--enable_query_log
+SHOW CREATE TABLE tbl_a;
+INSERT INTO tbl_a () VALUES ();
+INSERT INTO tbl_a () VALUES ();
+SHOW CREATE TABLE tbl_a;
+ALTER TABLE tbl_a MODIFY col_c MEDIUMINT NOT NULL DEFAULT 100;
+SHOW CREATE TABLE tbl_a;
+RENAME TABLE tbl_a TO tbl_x;
+SHOW CREATE TABLE tbl_x;
+RENAME TABLE tbl_x TO tbl_a;
+SHOW CREATE TABLE tbl_a;
+INSERT INTO tbl_a () VALUES ();
+INSERT INTO tbl_a () VALUES ();
+SHOW CREATE TABLE tbl_a;
+--disable_query_log
+echo MASTER_1_AUTO_INCREMENT1;
+eval $MASTER_1_AUTO_INCREMENT1;
+--enable_query_log
+SHOW CREATE TABLE tbl_a;
+INSERT INTO tbl_a () VALUES ();
+INSERT INTO tbl_a () VALUES ();
+SHOW CREATE TABLE tbl_a;
+--disable_query_log
+echo MASTER_1_AUTO_INCREMENT2;
+eval $MASTER_1_AUTO_INCREMENT2;
+--enable_query_log
+SHOW CREATE TABLE tbl_a;
+INSERT INTO tbl_a () VALUES ();
+INSERT INTO tbl_a () VALUES ();
+SHOW CREATE TABLE tbl_a;
+
+--echo
+--echo select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT * FROM tbl_a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+}
+--enable_warnings
+--source auto_increment_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/auto_increment_deinit.inc b/storage/spider/mysql-test/spider/t/auto_increment_deinit.inc
new file mode 100644
index 00000000..52be67a1
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/auto_increment_deinit.inc
@@ -0,0 +1,13 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--let $OUTPUT_CHILD_GROUP2= $OUTPUT_CHILD_GROUP2_BACKUP
+--let $USE_GENERAL_LOG= $USE_GENERAL_LOG_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/t/auto_increment_init.inc b/storage/spider/mysql-test/spider/t/auto_increment_init.inc
new file mode 100644
index 00000000..e4c13250
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/auto_increment_init.inc
@@ -0,0 +1,38 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='database "auto_test_remote", table "tbl_a", srv "s_2_1", aim "0"';
+let $MASTER_1_AUTO_INCREMENT_2_1=
+  AUTO_INCREMENT=20;
+let $MASTER_1_AUTO_INCREMENT1=
+  ALTER TABLE tbl_a AUTO_INCREMENT=30;
+let $MASTER_1_AUTO_INCREMENT2=
+  ALTER TABLE tbl_a AUTO_INCREMENT=10;
+let $CHILD2_1_CHARSET_AUTO_INCREMENT=
+  AUTO_INCREMENT=20;
+--let $CHILD2_1_DROP_TABLES_BACKUP= $CHILD2_1_DROP_TABLES
+let $CHILD2_1_DROP_TABLES=
+  DROP TABLE IF EXISTS tbl_a;
+--let $CHILD2_1_CREATE_TABLES_BACKUP= $CHILD2_1_CREATE_TABLES
+let $CHILD2_1_CREATE_TABLES=
+  CREATE TABLE tbl_a (
+    col_a INT NOT NULL AUTO_INCREMENT,
+    col_b VARCHAR(20) DEFAULT 'def',
+    col_c INT NOT NULL DEFAULT 10,
+    PRIMARY KEY(col_a)
+  ) $CHILD2_1_ENGINE $CHILD2_1_CHARSET_AUTO_INCREMENT $CHILD2_1_CHARSET;
+--let $CHILD2_1_SELECT_TABLES_BACKUP= $CHILD2_1_SELECT_TABLES
+let $CHILD2_1_SELECT_TABLES=
+  SELECT col_a, col_b, col_c FROM tbl_a ORDER BY col_a;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+--let $OUTPUT_CHILD_GROUP2_BACKUP= $OUTPUT_CHILD_GROUP2
+--let $OUTPUT_CHILD_GROUP2= 1
+--let $USE_GENERAL_LOG_BACKUP= $USE_GENERAL_LOG
+--let $USE_GENERAL_LOG= 1
diff --git a/storage/spider/mysql-test/spider/t/basic_sql.test b/storage/spider/mysql-test/spider/t/basic_sql.test
new file mode 100644
index 00000000..1298b10f
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/basic_sql.test
@@ -0,0 +1,2712 @@
+# This test tests by executing basic SQL
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tb_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+eval CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+--enable_query_log
+INSERT INTO tb_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+SELECT a, b, c FROM tb_l;
+if ($MASTER_1_MERGE)
+{
+  --error ER_WRONG_OBJECT
+  eval CREATE TABLE ta_l (
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1
+  SELECT a, b, c FROM tb_l;
+  eval CREATE TABLE ta_l (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+  INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+}
+if (!$MASTER_1_MERGE)
+{
+  eval CREATE TABLE ta_l (
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1
+  SELECT a, b, c FROM tb_l;
+}
+--enable_query_log
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo create table ignore select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+DROP TABLE IF EXISTS tb_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+eval CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+--enable_query_log
+INSERT INTO tb_l (a, b, c) VALUES
+  (1, 'f', '2008-07-01 10:21:39'),
+  (2, 'g', '2000-02-01 00:00:00'),
+  (3, 'j', '2007-05-04 20:03:11'),
+  (4, 'i', '2003-10-30 05:01:03'),
+  (5, 'h', '2001-10-31 23:59:59');
+--disable_query_log
+echo CREATE TABLE ta_l (
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+IGNORE SELECT a, b, c FROM tb_l;
+if ($MASTER_1_MERGE)
+{
+  --error ER_WRONG_OBJECT
+  eval CREATE TABLE ta_l (
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1
+  IGNORE SELECT a, b, c FROM tb_l;
+  eval CREATE TABLE ta_l (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+  INSERT IGNORE INTO ta_l SELECT a, b, c FROM tb_l;
+}
+if (!$MASTER_1_MERGE)
+{
+  eval CREATE TABLE ta_l (
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1
+  IGNORE SELECT a, b, c FROM tb_l;
+}
+--enable_query_log
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo create table ignore select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1
+REPLACE SELECT a, b, c FROM tb_l;
+if ($MASTER_1_MERGE)
+{
+  --error ER_WRONG_OBJECT
+  eval CREATE TABLE ta_l (
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1
+  REPLACE SELECT a, b, c FROM tb_l;
+  eval CREATE TABLE ta_l (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+  REPLACE INTO ta_l SELECT a, b, c FROM tb_l;
+}
+if (!$MASTER_1_MERGE)
+{
+  eval CREATE TABLE ta_l (
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1
+  REPLACE SELECT a, b, c FROM tb_l;
+}
+--enable_query_log
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%replace %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo create no index table
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES3;
+    echo CHILD2_1_CREATE_TABLES3;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES3;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES3;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l_no_idx;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l_no_idx
+MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT2_2_1
+SELECT a, b, c FROM tb_l;
+if ($MASTER_1_NEEDPK)
+{
+  --error ER_REQUIRES_PRIMARY_KEY
+  eval CREATE TABLE ta_l_no_idx
+  $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT2_2_1
+  SELECT a, b, c FROM tb_l;
+  eval CREATE TABLE ta_l_no_idx (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT2_2_1;
+  INSERT INTO ta_l_no_idx SELECT a, b, c FROM tb_l;
+}
+if (!$MASTER_1_NEEDPK)
+{
+  if ($MASTER_1_MERGE)
+  {
+    --error ER_WRONG_OBJECT
+    eval CREATE TABLE ta_l_no_idx
+    $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT2_2_1
+    SELECT a, b, c FROM tb_l;
+    eval CREATE TABLE ta_l_no_idx (
+      a INT,
+      b CHAR(1),
+      c DATETIME
+    ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT2_2_1;
+    INSERT INTO ta_l_no_idx SELECT a, b, c FROM tb_l;
+  }
+  if (!$MASTER_1_MERGE)
+  {
+    eval CREATE TABLE ta_l_no_idx
+    $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT2_2_1
+    SELECT a, b, c FROM tb_l;
+  }
+}
+--enable_query_log
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES3;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l_no_idx ORDER BY a;
+
+--echo
+--echo select table
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select table shared mode
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a
+LOCK IN SHARE MODE;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select table for update
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a
+FOR UPDATE;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select table join
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a.a, a.b, date_format(b.c, '%Y-%m-%d %H:%i:%s') FROM ta_l a, tb_l b
+WHERE a.a = b.a ORDER BY a.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select table straight_join
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT STRAIGHT_JOIN a.a, a.b, date_format(b.c, '%Y-%m-%d %H:%i:%s')
+FROM ta_l a, tb_l b WHERE a.a = b.a ORDER BY a.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select sql_small_result
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT SQL_SMALL_RESULT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select sql_big_result
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT SQL_BIG_RESULT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select sql_buffer_result
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT SQL_BUFFER_RESULT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select sql_cache
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT SQL_CACHE a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select sql_no_cache
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT SQL_NO_CACHE a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select sql_calc_found_rows
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT SQL_CALC_FOUND_ROWS a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a LIMIT 4;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT found_rows();
+
+--echo
+--echo select high_priority
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT HIGH_PRIORITY a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select distinct
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT DISTINCT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select count
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT count(*) FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select table join not use index
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM tb_l a WHERE
+EXISTS (SELECT * FROM ta_l b WHERE b.b = a.b) ORDER BY a.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select using pushdown
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l a WHERE
+a.b = 'g' ORDER BY a.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select using index and pushdown
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l a WHERE
+a.a > 0 AND a.b = 'g' ORDER BY a.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo insert
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert select
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT INTO ta_l (a, b, c) SELECT a, b, c FROM tb_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert select a
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT INTO ta_l (a, b, c) VALUES ((SELECT a FROM tb_l ORDER BY a LIMIT 1),
+'e', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert low_priority
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT LOW_PRIORITY INTO ta_l (a, b, c) values (2, 'e', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert high_priority
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT HIGH_PRIORITY INTO ta_l (a, b, c) VALUES (2, 'e',
+'2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert ignore
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT IGNORE INTO ta_l (a, b, c) VALUES (2, 'd', '2009-02-02 01:01:01');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert update (insert)
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59') ON DUPLICATE
+KEY UPDATE b = 'f', c = '2005-08-08 11:11:11';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%update %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo insert update (update)
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59') ON DUPLICATE
+KEY UPDATE b = 'f', c = '2005-08-08 11:11:11';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%update %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo replace
+--connection master_1
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (2, 'e', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+REPLACE INTO ta_l (a, b, c) VALUES (2, 'f', '2008-02-02 02:02:02');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'replace %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo replace select
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+REPLACE INTO ta_l (a, b, c) SELECT a, b, c FROM tb_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'replace %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo replace select a
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+REPLACE INTO ta_l (a, b, c) VALUES ((SELECT a FROM tb_l ORDER BY a LIMIT 1),
+'e', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'replace %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo replace low_priority
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+REPLACE LOW_PRIORITY INTO ta_l (a, b, c) VALUES (3, 'g',
+'2009-03-03 03:03:03');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'replace %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'insert %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l SET b = 'f', c = '2008-02-02 02:02:02' WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update select
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l SET b = 'g', c = '2009-03-03 03:03:03' WHERE a IN (SELECT a FROM
+tb_l);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update select a
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l SET b = 'h', c = '2010-04-04 04:04:04' WHERE a = (SELECT a FROM
+tb_l ORDER BY a LIMIT 1);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update join
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l a, tb_l b SET a.b = b.b, a.c = b.c WHERE a.a = b.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update join a
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l a, tb_l b SET a.b = 'g', a.c = '2009-03-03 03:03:03' WHERE
+a.a = b.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update low_priority
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE LOW_PRIORITY ta_l SET b = 'f', c = '2008-02-02 02:02:02' WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update ignore
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE IGNORE ta_l SET a = 1, b = 'g', c = '2009-03-03 03:03:03' WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update pushdown
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+update ta_l set b = 'j', c = '2009-03-03 03:03:03' where b = 'f';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo update index pushdown
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l SET b = 'g', c = '2009-03-03 03:03:03' WHERE a > 0 AND b = 'j';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE FROM ta_l WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete all
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE FROM ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete select
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE FROM ta_l WHERE a IN (SELECT a FROM tb_l);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete select a
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE FROM ta_l WHERE a = (SELECT a FROM tb_l ORDER BY a LIMIT 1);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete join
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE a FROM ta_l a, (SELECT a FROM tb_l ORDER BY a) b WHERE a.a = b.a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete low_priority
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE LOW_PRIORITY FROM ta_l WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete ignore
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE IGNORE FROM ta_l WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete quick
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE QUICK FROM ta_l WHERE a = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete pushdown
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE FROM ta_l WHERE b = 'e';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo delete index pushdown
+TRUNCATE TABLE ta_l;
+INSERT INTO ta_l (a, b, c) VALUES (1, 'e', '2008-01-01 23:59:59'),
+(2, 'e', '2008-01-01 23:59:59'), (3, 'e', '2008-01-01 23:59:59'),
+(4, 'e', '2008-01-01 23:59:59'), (5, 'e', '2008-01-01 23:59:59'),
+(6, 'e', '2008-01-01 23:59:59'), (7, 'e', '2008-01-01 23:59:59'),
+(8, 'e', '2008-01-01 23:59:59'), (9, 'e', '2008-01-01 23:59:59'),
+(10, 'j', '2008-01-01 23:59:59');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE FROM ta_l WHERE a > 0 AND b = 'e';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo truncate
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+TRUNCATE TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE 'truncate %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--connection master_1
+create table t2345678911234567892123456789312345678941234567895123234234(id int) ENGINE=SPIDER
+    COMMENT='host "192.168.21.1", user "spider", password "password", database "test32738123123123"';
+drop table t2345678911234567892123456789312345678941234567895123234234;
+
+--echo #
+--echo # MDEV-26139 Spider crashes with segmentation fault (signal 11) on CREATE TABLE when COMMENT does not contain embedded double quotes
+--echo #
+create table mdev_26139 (id int) ENGINE=SPIDER
+    COMMENT="host '192.168.21.1', user 'spider', password 'password', database 'test'";
+drop table mdev_26139;
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/basic_sql_part.test b/storage/spider/mysql-test/spider/t/basic_sql_part.test
new file mode 100644
index 00000000..e1638642
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/basic_sql_part.test
@@ -0,0 +1,571 @@
+# This test tests by executing basic SQL
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+if (!$HAVE_PARTITION)
+{
+  --disable_query_log
+  --disable_result_log
+  --source test_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tb_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+eval CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+--enable_query_log
+INSERT INTO tb_l (a, b, c) VALUES
+  (1, 'f', '2008-07-01 10:21:39'),
+  (2, 'g', '2000-02-01 00:00:00'),
+  (3, 'j', '2007-05-04 20:03:11'),
+  (4, 'i', '2003-10-30 05:01:03'),
+  (5, 'h', '2001-10-31 23:59:59');
+
+--echo
+--echo create table with partition and select test
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_COMMENT_P_2_1
+  SELECT a, b, c FROM tb_l;
+  if ($MASTER_1_MERGE)
+  {
+    --error ER_WRONG_OBJECT
+    eval CREATE TABLE ta_l2 (
+      PRIMARY KEY(a)
+    ) $MASTER_1_ENGINE $MASTER_1_COMMENT_P_2_1
+    SELECT a, b, c FROM tb_l;
+    eval CREATE TABLE ta_l2 (
+      a INT,
+      b CHAR(1),
+      c DATETIME,
+      PRIMARY KEY(a)
+    ) $MASTER_1_ENGINE $MASTER_1_COMMENT_P_2_1;
+    INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+  }
+  if (!$MASTER_1_MERGE)
+  {
+    eval CREATE TABLE ta_l2 (
+      PRIMARY KEY(a)
+    ) $MASTER_1_ENGINE $MASTER_1_COMMENT_P_2_1
+    SELECT a, b, c FROM tb_l;
+  }
+  --enable_query_log
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+}
+
+--echo
+--echo select partition using pushdown
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 a WHERE
+  a.b = 'g' ORDER BY a.a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo
+--echo select partition using index pushdown
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a.a, a.b, date_format(a.c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 a WHERE
+  a.a > 0 AND a.b = 'g' ORDER BY a.a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo
+--echo update partition pushdown
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  UPDATE ta_l2 SET b = 'e', c = '2009-03-03 03:03:03' WHERE b = 'j';
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+}
+
+--echo
+--echo update partition index pushdown
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  UPDATE ta_l2 SET b = 'j', c = '2009-03-03 03:03:03' WHERE a > 0 AND b = 'e';
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'update %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+}
+
+--echo
+--echo delete partition pushdown
+if ($HAVE_PARTITION)
+{
+  TRUNCATE TABLE ta_l2;
+  INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  DELETE FROM ta_l2 WHERE b = 'g';
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+}
+
+--echo
+--echo delete partition index pushdown
+if ($HAVE_PARTITION)
+{
+  TRUNCATE TABLE ta_l2;
+  INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  DELETE FROM ta_l2 WHERE a > 0 AND b = 'g';
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE 'delete %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/checksum_table_with_quick_mode_3.test b/storage/spider/mysql-test/spider/t/checksum_table_with_quick_mode_3.test
new file mode 100644
index 00000000..d108fda7
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/checksum_table_with_quick_mode_3.test
@@ -0,0 +1,126 @@
+--source ../include/checksum_table_with_quick_mode_3_init.inc
+--echo
+--echo drop and create databases
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+}
+--enable_warnings
+
+--echo
+--echo create table and insert
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_a (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_a (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+FLUSH TABLES;
+
+--echo
+--echo select test 1
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+CHECKSUM TABLE tbl_a EXTENDED;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+}
+--enable_warnings
+--source ../include/checksum_table_with_quick_mode_3_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/connect_child2_1.inc b/storage/spider/mysql-test/spider/t/connect_child2_1.inc
new file mode 100644
index 00000000..15e26031
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/connect_child2_1.inc
@@ -0,0 +1,2 @@
+--connect (child2_1, localhost, root, , , $CHILD2_1_MYPORT, $CHILD2_1_MYSOCK)
+--connect (child2_1_2, localhost, root, , , $CHILD2_1_MYPORT, $CHILD2_1_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/t/connect_child2_2.inc b/storage/spider/mysql-test/spider/t/connect_child2_2.inc
new file mode 100644
index 00000000..75a50821
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/connect_child2_2.inc
@@ -0,0 +1,2 @@
+--connect (child2_2, localhost, root, , , $CHILD2_2_MYPORT, $CHILD2_2_MYSOCK)
+--connect (child2_2_2, localhost, root, , , $CHILD2_2_MYPORT, $CHILD2_2_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/t/connect_child2_3.inc b/storage/spider/mysql-test/spider/t/connect_child2_3.inc
new file mode 100644
index 00000000..d356348d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/connect_child2_3.inc
@@ -0,0 +1 @@
+--connect (child2_3, localhost, root, , , $CHILD2_3_MYPORT, $CHILD2_3_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/t/connect_child3_1.inc b/storage/spider/mysql-test/spider/t/connect_child3_1.inc
new file mode 100644
index 00000000..03e5c188
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/connect_child3_1.inc
@@ -0,0 +1 @@
+--connect (child3_1, localhost, root, , , $CHILD3_1_MYPORT, $CHILD3_1_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/t/connect_child3_2.inc b/storage/spider/mysql-test/spider/t/connect_child3_2.inc
new file mode 100644
index 00000000..d62a7ada
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/connect_child3_2.inc
@@ -0,0 +1 @@
+--connect (child3_2, localhost, root, , , $CHILD3_2_MYPORT, $CHILD3_2_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/t/connect_child3_3.inc b/storage/spider/mysql-test/spider/t/connect_child3_3.inc
new file mode 100644
index 00000000..fb49f5bf
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/connect_child3_3.inc
@@ -0,0 +1 @@
+--connect (child3_3, localhost, root, , , $CHILD3_3_MYPORT, $CHILD3_3_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/t/connect_master_1.inc b/storage/spider/mysql-test/spider/t/connect_master_1.inc
new file mode 100644
index 00000000..0c129ce5
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/connect_master_1.inc
@@ -0,0 +1 @@
+--connect (master_1, localhost, root, , , $MASTER_1_MYPORT, $MASTER_1_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/t/connect_slave1_1.inc b/storage/spider/mysql-test/spider/t/connect_slave1_1.inc
new file mode 100644
index 00000000..45a82274
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/connect_slave1_1.inc
@@ -0,0 +1 @@
+--connect (slave1_1, localhost, root, , , $SLAVE1_1_MYPORT, $SLAVE1_1_MYSOCK)
diff --git a/storage/spider/mysql-test/spider/t/direct_aggregate.test b/storage/spider/mysql-test/spider/t/direct_aggregate.test
new file mode 100644
index 00000000..d65f4c5a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/direct_aggregate.test
@@ -0,0 +1,179 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO ta_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+
+--echo
+--echo direct_aggregating test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+SELECT COUNT(*) FROM ta_l;
+eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+SELECT MAX(a) FROM ta_l;
+eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+SELECT MIN(a) FROM ta_l;
+eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+SELECT MAX(a) FROM ta_l WHERE a < 5;
+eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+SELECT MIN(a) FROM ta_l WHERE a > 1;
+eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%handler %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/direct_aggregate_part.test b/storage/spider/mysql-test/spider/t/direct_aggregate_part.test
new file mode 100644
index 00000000..aebf210c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/direct_aggregate_part.test
@@ -0,0 +1,192 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+if (!$HAVE_PARTITION)
+{
+  --disable_query_log
+  --disable_result_log
+  --source test_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo with partition test
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1;
+  eval CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_COMMENT2_P_2_1;
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (1, 'a', '2008-08-01 10:21:39'),
+    (2, 'b', '2000-01-01 00:00:00'),
+    (3, 'e', '2007-06-04 20:03:11'),
+    (4, 'd', '2003-11-30 05:01:03'),
+    (5, 'c', '2001-12-31 23:59:59');
+  --enable_query_log
+  eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+  SELECT COUNT(*) FROM ta_l2;
+  eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+  SELECT MAX(a) FROM ta_l2;
+  eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+  SELECT MIN(a) FROM ta_l2;
+  eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+  SELECT MAX(a) FROM ta_l2 WHERE a < 5;
+  eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+  SELECT MIN(a) FROM ta_l2 WHERE a > 1;
+  eval $MASTER_1_CHECK_DIRECT_AGGREGATE_STATUS;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%handler %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%handler %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/direct_join.test b/storage/spider/mysql-test/spider/t/direct_join.test
new file mode 100644
index 00000000..3f7c692d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/direct_join.test
@@ -0,0 +1,343 @@
+--source ../include/direct_join_init.inc
+
+--echo
+--echo drop and create databases
+--connection master_1
+--disable_warnings
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table and insert
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_DROP_TABLES6;
+    echo CHILD2_1_DROP_TABLES5;
+    echo CHILD2_1_CREATE_TABLES;
+    echo CHILD2_1_CREATE_TABLES6;
+    echo CHILD2_1_CREATE_TABLES5;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  eval $CHILD2_1_DROP_TABLES6;
+  eval $CHILD2_1_DROP_TABLES5;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  eval $CHILD2_1_CREATE_TABLES6;
+  eval $CHILD2_1_CREATE_TABLES5;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tbl_a;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a),
+    KEY idx1(b)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a),
+    KEY idx1(b)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+echo CREATE TABLE tbl_b (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT5_2_1;
+eval CREATE TABLE tbl_b (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT5_2_1;
+echo CREATE TABLE tbl_c (
+    a INT AUTO_INCREMENT,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    PRIMARY KEY(a),
+    KEY idx1(b),
+    KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1;
+eval CREATE TABLE tbl_c (
+    a INT AUTO_INCREMENT,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    PRIMARY KEY(a),
+    KEY idx1(b),
+    KEY idx2(c)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+--enable_query_log
+insert into tbl_a values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04'),(5,'e','2000/01/05');
+insert into tbl_b values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04'),(5,'e','2000/01/05');
+insert into tbl_c values (1,10,100),(2,20,200),(3,30,300),(4,40,400),(5,50,500);
+
+--echo
+--echo select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+SELECT a.a, c.b, c.c FROM tbl_a a, tbl_b b, tbl_c c WHERE a.a = b.a and a.a = c.a ORDER BY a.b DESC LIMIT 1,2;
+
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo Test JOIN on a constant table.
+--echo Spider should NOT push down the join because the tbl_person table
+--echo is optimized as a constant table.
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_CONST_TABLE_JOIN;
+    echo CHILD2_1_DROP_CONST_TABLE2_JOIN;
+    echo CHILD2_1_CREATE_CONST_TABLE_JOIN;
+    echo CHILD2_1_CREATE_CONST_TABLE2_JOIN;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_CONST_TABLE_JOIN;
+  eval $CHILD2_1_DROP_CONST_TABLE2_JOIN;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_CONST_TABLE_JOIN;
+  eval $CHILD2_1_CREATE_CONST_TABLE2_JOIN;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tbl_person;
+DROP TABLE IF EXISTS tbl_ncd_cm_person;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tbl_person (
+    id VARCHAR(50) NOT NULL,
+    hr_status VARCHAR(50) NULL DEFAULT NULL,
+    region_code VARCHAR(50) NULL DEFAULT NULL,
+    region INT(11) NOT NULL,
+    PRIMARY KEY (id, region) USING BTREE
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_CONST_TABLE_JOIN
+    MASTER_1_ROW_FORMAT_CONST_TABLE_JOIN MASTER_1_PART_CONST_TABLE_JOIN;
+eval CREATE TABLE tbl_person (
+    id VARCHAR(50) NOT NULL,
+    hr_status VARCHAR(50) NULL DEFAULT NULL,
+    region_code VARCHAR(50) NULL DEFAULT NULL,
+    region INT(11) NOT NULL,
+    PRIMARY KEY (id, region) USING BTREE
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_CONST_TABLE_JOIN
+    $MASTER_1_ROW_FORMAT_CONST_TABLE_JOIN $MASTER_1_PART_CONST_TABLE_JOIN;
+echo SHOW CREATE TABLE tbl_person;
+SHOW CREATE TABLE tbl_person;
+echo CREATE TABLE tbl_ncd_cm_person (
+    id VARCHAR(50) NOT NULL,
+    person_id VARCHAR(50) NULL DEFAULT '',
+    diseaseKind_id VARCHAR(50) NULL DEFAULT NULL,
+    region INT(11) NOT NULL,
+    PRIMARY KEY (id, region) USING BTREE
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_CONST_TABLE2_JOIN
+    MASTER_1_ROW_FORMAT_CONST_TABLE_JOIN MASTER_1_PART_CONST_TABLE2_JOIN;
+eval CREATE TABLE tbl_ncd_cm_person (
+    id VARCHAR(50) NOT NULL,
+    person_id VARCHAR(50) NULL DEFAULT '',
+    diseaseKind_id VARCHAR(50) NULL DEFAULT NULL,
+    region INT(11) NOT NULL,
+    PRIMARY KEY (id, region) USING BTREE
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_CONST_TABLE2_JOIN
+    $MASTER_1_ROW_FORMAT_CONST_TABLE_JOIN $MASTER_1_PART_CONST_TABLE2_JOIN;
+echo SHOW CREATE TABLE tbl_ncd_cm_person;
+SHOW CREATE TABLE tbl_ncd_cm_person;
+--enable_query_log
+INSERT INTO tbl_person VALUES ('24FC3F0A5119432BAE13DD65AABAA39C',
+                               '1', '123-51041110620301-321', 510411);
+INSERT INTO tbl_person VALUES ('123456789012345678901234567890AB',
+                               '1', '123-51041110620301-321', 510411);
+INSERT INTO tbl_ncd_cm_person VALUES ('123456789',
+                                      '24FC3F0A5119432BAE13DD65AABAA39C',
+                                      '52A0328740914BCE86ED10A4D2521816',
+                                      510411);
+INSERT INTO tbl_ncd_cm_person VALUES ('123456789AB',
+                                      '123456789012345678901234567890AB',
+                                      '52A0328740914BCE86ED10A4D2521816',
+                                      510411);
+DELETE FROM tbl_ncd_cm_person;
+INSERT INTO tbl_ncd_cm_person VALUES ('123456789',
+                                      '24FC3F0A5119432BAE13DD65AABAA39C',
+                                      '52A0328740914BCE86ED10A4D2521816',
+                                      510411);
+INSERT INTO tbl_ncd_cm_person VALUES ('123456789AB',
+                                      '123456789012345678901234567890AB',
+                                      '52A0328740914BCE86ED10A4D2521816',
+                                      510411);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+SELECT count(0) FROM tbl_person tp INNER JOIN tbl_ncd_cm_person tncp ON tp.id = tncp.person_id WHERE 1 = 1 AND tp.hr_status != "99" AND tp.hr_status != "2" AND tp.region_code LIKE CONCAT(CONCAT('%', '51041110620301', '%')) AND tp.id = '24FC3F0A5119432BAE13DD65AABAA39C' AND tncp.diseaseKind_id = '52A0328740914BCE86ED10A4D2521816' AND tp.region = 510411;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_CONST_TABLE_JOIN;
+  eval $CHILD2_1_SELECT_CONST_TABLE2_JOIN;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+}
+--enable_warnings
+--source ../include/direct_join_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/direct_join_using.test b/storage/spider/mysql-test/spider/t/direct_join_using.test
new file mode 100644
index 00000000..819e56ff
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/direct_join_using.test
@@ -0,0 +1,197 @@
+--source ../include/direct_join_using_init.inc
+
+--echo
+--echo drop and create databases
+--connection master_1
+--disable_warnings
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table and insert
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_DROP_TABLES6;
+    echo CHILD2_1_DROP_TABLES5;
+    echo CHILD2_1_CREATE_TABLES;
+    echo CHILD2_1_CREATE_TABLES6;
+    echo CHILD2_1_CREATE_TABLES5;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  eval $CHILD2_1_DROP_TABLES6;
+  eval $CHILD2_1_DROP_TABLES5;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  eval $CHILD2_1_CREATE_TABLES6;
+  eval $CHILD2_1_CREATE_TABLES5;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tbl_a;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a),
+    KEY idx1(b)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a),
+    KEY idx1(b)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+echo CREATE TABLE tbl_b (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT5_2_1;
+eval CREATE TABLE tbl_b (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT5_2_1;
+echo CREATE TABLE tbl_c (
+    a INT AUTO_INCREMENT,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    PRIMARY KEY(a),
+    KEY idx1(b),
+    KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1;
+eval CREATE TABLE tbl_c (
+    a INT AUTO_INCREMENT,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    PRIMARY KEY(a),
+    KEY idx1(b),
+    KEY idx2(c)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+--enable_query_log
+insert into tbl_a values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04'),(5,'e','2000/01/05');
+insert into tbl_b values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04'),(5,'e','2000/01/05');
+insert into tbl_c values (1,10,100),(2,20,200),(3,30,300),(4,40,400),(5,50,500);
+
+--echo
+--echo select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+SELECT a.a, c.b, c.c FROM tbl_a a join tbl_b b using(a) join tbl_c c using(a) ORDER BY a.b DESC;
+
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+}
+--enable_warnings
+--source ../include/direct_join_using_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/direct_left_join.test b/storage/spider/mysql-test/spider/t/direct_left_join.test
new file mode 100644
index 00000000..e09b6a12
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/direct_left_join.test
@@ -0,0 +1,197 @@
+--source ../include/direct_left_join_init.inc
+
+--echo
+--echo drop and create databases
+--connection master_1
+--disable_warnings
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table and insert
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_DROP_TABLES6;
+    echo CHILD2_1_DROP_TABLES5;
+    echo CHILD2_1_CREATE_TABLES;
+    echo CHILD2_1_CREATE_TABLES6;
+    echo CHILD2_1_CREATE_TABLES5;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  eval $CHILD2_1_DROP_TABLES6;
+  eval $CHILD2_1_DROP_TABLES5;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  eval $CHILD2_1_CREATE_TABLES6;
+  eval $CHILD2_1_CREATE_TABLES5;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tbl_a;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a),
+    KEY idx1(b)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a),
+    KEY idx1(b)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+echo CREATE TABLE tbl_b (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT5_2_1;
+eval CREATE TABLE tbl_b (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT5_2_1;
+echo CREATE TABLE tbl_c (
+    a INT AUTO_INCREMENT,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    PRIMARY KEY(a),
+    KEY idx1(b),
+    KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1;
+eval CREATE TABLE tbl_c (
+    a INT AUTO_INCREMENT,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    PRIMARY KEY(a),
+    KEY idx1(b),
+    KEY idx2(c)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+--enable_query_log
+insert into tbl_a values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04'),(5,'e','2000/01/05');
+insert into tbl_b values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04'),(5,'e','2000/01/05');
+insert into tbl_c values (1,10,100),(2,20,200),(3,30,300),(4,40,400),(5,50,500);
+
+--echo
+--echo select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+SELECT a.a, c.b, c.c FROM tbl_a a left join tbl_b b on a.a = b.a left join tbl_c c on a.a = c.a ORDER BY a.b DESC;
+
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+}
+--enable_warnings
+--source ../include/direct_left_join_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/direct_left_join_nullable.test b/storage/spider/mysql-test/spider/t/direct_left_join_nullable.test
new file mode 100644
index 00000000..dc67a01b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/direct_left_join_nullable.test
@@ -0,0 +1,212 @@
+--source ../include/direct_left_join_nullable_init.inc
+
+--echo
+--echo drop and create databases
+--connection master_1
+--disable_warnings
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table and insert
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_DROP_TABLES6;
+    echo CHILD2_1_DROP_TABLES4;
+    echo CHILD2_1_DROP_TABLES3;
+    echo CHILD2_1_CREATE_TABLES;
+    echo CHILD2_1_CREATE_TABLES6;
+    echo CHILD2_1_CREATE_TABLES4;
+    echo CHILD2_1_CREATE_TABLES3;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  eval $CHILD2_1_DROP_TABLES6;
+  eval $CHILD2_1_DROP_TABLES4;
+  eval $CHILD2_1_DROP_TABLES3;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  eval $CHILD2_1_CREATE_TABLES6;
+  eval $CHILD2_1_CREATE_TABLES4;
+  eval $CHILD2_1_CREATE_TABLES3;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tbl_a;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    KEY idx0(a),
+    KEY idx1(b)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    KEY idx0(a),
+    KEY idx1(b)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+echo CREATE TABLE tbl_b (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT5_2_1;
+eval CREATE TABLE tbl_b (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT5_2_1;
+echo CREATE TABLE tbl_c (
+    a INT AUTO_INCREMENT,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    KEY idx0(a),
+    KEY idx1(b),
+    KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT3_2_1;
+eval CREATE TABLE tbl_c (
+    a INT AUTO_INCREMENT,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    KEY idx0(a),
+    KEY idx1(b),
+    KEY idx2(c)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT3_2_1;
+echo CREATE TABLE tbl_d (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT2_2_1;
+eval CREATE TABLE tbl_d (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT2_2_1;
+--enable_query_log
+insert into tbl_a values (1,'a','2000/01/01'),(2,'b','2000/01/02');
+insert into tbl_b values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03');
+insert into tbl_c values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04');
+insert into tbl_d values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04'),(5,'e','2000/01/05');
+
+--echo
+--echo select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+SELECT a.a, c.b, c.c, d.a FROM tbl_d a left join tbl_c b on a.a = b.a left join tbl_b c on b.c = c.c left join tbl_a d on c.b = d.b ORDER BY a.a DESC;
+
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+}
+--enable_warnings
+--source ../include/direct_left_join_nullable_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/direct_left_right_join_nullable.test b/storage/spider/mysql-test/spider/t/direct_left_right_join_nullable.test
new file mode 100644
index 00000000..9d5a990e
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/direct_left_right_join_nullable.test
@@ -0,0 +1,212 @@
+--source ../include/direct_left_right_join_nullable_init.inc
+
+--echo
+--echo drop and create databases
+--connection master_1
+--disable_warnings
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table and insert
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_DROP_TABLES6;
+    echo CHILD2_1_DROP_TABLES4;
+    echo CHILD2_1_DROP_TABLES3;
+    echo CHILD2_1_CREATE_TABLES;
+    echo CHILD2_1_CREATE_TABLES6;
+    echo CHILD2_1_CREATE_TABLES4;
+    echo CHILD2_1_CREATE_TABLES3;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  eval $CHILD2_1_DROP_TABLES6;
+  eval $CHILD2_1_DROP_TABLES4;
+  eval $CHILD2_1_DROP_TABLES3;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  eval $CHILD2_1_CREATE_TABLES6;
+  eval $CHILD2_1_CREATE_TABLES4;
+  eval $CHILD2_1_CREATE_TABLES3;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tbl_a;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    KEY idx0(a),
+    KEY idx1(b)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    KEY idx0(a),
+    KEY idx1(b)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+echo CREATE TABLE tbl_b (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT5_2_1;
+eval CREATE TABLE tbl_b (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT5_2_1;
+echo CREATE TABLE tbl_c (
+    a INT AUTO_INCREMENT,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    KEY idx0(a),
+    KEY idx1(b),
+    KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT3_2_1;
+eval CREATE TABLE tbl_c (
+    a INT AUTO_INCREMENT,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    KEY idx0(a),
+    KEY idx1(b),
+    KEY idx2(c)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT3_2_1;
+echo CREATE TABLE tbl_d (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT2_2_1;
+eval CREATE TABLE tbl_d (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT2_2_1;
+--enable_query_log
+insert into tbl_a values (1,'a','2000/01/01'),(2,'b','2000/01/02');
+insert into tbl_b values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03');
+insert into tbl_c values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04');
+insert into tbl_d values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04'),(5,'e','2000/01/05');
+
+--echo
+--echo select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+SELECT a.a, c.b, c.c, d.a FROM tbl_a a left join tbl_b b on a.a = b.a left join tbl_c c on b.c = c.c right join tbl_d d on c.b = d.b ORDER BY d.a DESC;
+
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+}
+--enable_warnings
+--source ../include/direct_left_right_join_nullable_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/direct_left_right_left_join_nullable.test b/storage/spider/mysql-test/spider/t/direct_left_right_left_join_nullable.test
new file mode 100644
index 00000000..90e36669
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/direct_left_right_left_join_nullable.test
@@ -0,0 +1,212 @@
+--source ../include/direct_left_right_left_join_nullable_init.inc
+
+--echo
+--echo drop and create databases
+--connection master_1
+--disable_warnings
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table and insert
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_DROP_TABLES6;
+    echo CHILD2_1_DROP_TABLES4;
+    echo CHILD2_1_DROP_TABLES3;
+    echo CHILD2_1_CREATE_TABLES;
+    echo CHILD2_1_CREATE_TABLES6;
+    echo CHILD2_1_CREATE_TABLES4;
+    echo CHILD2_1_CREATE_TABLES3;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  eval $CHILD2_1_DROP_TABLES6;
+  eval $CHILD2_1_DROP_TABLES4;
+  eval $CHILD2_1_DROP_TABLES3;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  eval $CHILD2_1_CREATE_TABLES6;
+  eval $CHILD2_1_CREATE_TABLES4;
+  eval $CHILD2_1_CREATE_TABLES3;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tbl_a;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    KEY idx0(a),
+    KEY idx1(b)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    KEY idx0(a),
+    KEY idx1(b)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+echo CREATE TABLE tbl_b (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT5_2_1;
+eval CREATE TABLE tbl_b (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT5_2_1;
+echo CREATE TABLE tbl_c (
+    a INT AUTO_INCREMENT,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    KEY idx0(a),
+    KEY idx1(b),
+    KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT3_2_1;
+eval CREATE TABLE tbl_c (
+    a INT AUTO_INCREMENT,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    KEY idx0(a),
+    KEY idx1(b),
+    KEY idx2(c)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT3_2_1;
+echo CREATE TABLE tbl_d (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT2_2_1;
+eval CREATE TABLE tbl_d (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT2_2_1;
+--enable_query_log
+insert into tbl_a values (1,'a','2000/01/01'),(2,'b','2000/01/02');
+insert into tbl_b values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03');
+insert into tbl_c values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04');
+insert into tbl_d values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04'),(5,'e','2000/01/05');
+
+--echo
+--echo select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+SELECT a.a, c.b, c.c, d.a FROM tbl_a a left join tbl_b b on a.a = b.a right join tbl_c c on b.c = c.c left join tbl_d d on c.b = d.b ORDER BY d.a DESC;
+
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+}
+--enable_warnings
+--source ../include/direct_left_right_left_join_nullable_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/direct_right_join.test b/storage/spider/mysql-test/spider/t/direct_right_join.test
new file mode 100644
index 00000000..0c049665
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/direct_right_join.test
@@ -0,0 +1,197 @@
+--source ../include/direct_right_join_init.inc
+
+--echo
+--echo drop and create databases
+--connection master_1
+--disable_warnings
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table and insert
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_DROP_TABLES6;
+    echo CHILD2_1_DROP_TABLES5;
+    echo CHILD2_1_CREATE_TABLES;
+    echo CHILD2_1_CREATE_TABLES6;
+    echo CHILD2_1_CREATE_TABLES5;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  eval $CHILD2_1_DROP_TABLES6;
+  eval $CHILD2_1_DROP_TABLES5;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  eval $CHILD2_1_CREATE_TABLES6;
+  eval $CHILD2_1_CREATE_TABLES5;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tbl_a;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a),
+    KEY idx1(b)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a),
+    KEY idx1(b)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+echo CREATE TABLE tbl_b (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT5_2_1;
+eval CREATE TABLE tbl_b (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT5_2_1;
+echo CREATE TABLE tbl_c (
+    a INT AUTO_INCREMENT,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    PRIMARY KEY(a),
+    KEY idx1(b),
+    KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1;
+eval CREATE TABLE tbl_c (
+    a INT AUTO_INCREMENT,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    PRIMARY KEY(a),
+    KEY idx1(b),
+    KEY idx2(c)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+--enable_query_log
+insert into tbl_a values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04'),(5,'e','2000/01/05');
+insert into tbl_b values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04'),(5,'e','2000/01/05');
+insert into tbl_c values (1,10,100),(2,20,200),(3,30,300),(4,40,400),(5,50,500);
+
+--echo
+--echo select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+SELECT a.a, c.b, c.c FROM tbl_a a right join tbl_b b on a.a = b.a right join tbl_c c on a.a = c.a ORDER BY a.b DESC;
+
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+}
+--enable_warnings
+--source ../include/direct_right_join_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/direct_right_join_nullable.test b/storage/spider/mysql-test/spider/t/direct_right_join_nullable.test
new file mode 100644
index 00000000..3ab4a30e
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/direct_right_join_nullable.test
@@ -0,0 +1,212 @@
+--source ../include/direct_right_join_nullable_init.inc
+
+--echo
+--echo drop and create databases
+--connection master_1
+--disable_warnings
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table and insert
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_DROP_TABLES6;
+    echo CHILD2_1_DROP_TABLES4;
+    echo CHILD2_1_DROP_TABLES3;
+    echo CHILD2_1_CREATE_TABLES;
+    echo CHILD2_1_CREATE_TABLES6;
+    echo CHILD2_1_CREATE_TABLES4;
+    echo CHILD2_1_CREATE_TABLES3;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  eval $CHILD2_1_DROP_TABLES6;
+  eval $CHILD2_1_DROP_TABLES4;
+  eval $CHILD2_1_DROP_TABLES3;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  eval $CHILD2_1_CREATE_TABLES6;
+  eval $CHILD2_1_CREATE_TABLES4;
+  eval $CHILD2_1_CREATE_TABLES3;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tbl_a;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    KEY idx0(a),
+    KEY idx1(b)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    KEY idx0(a),
+    KEY idx1(b)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+echo CREATE TABLE tbl_b (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT5_2_1;
+eval CREATE TABLE tbl_b (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT5_2_1;
+echo CREATE TABLE tbl_c (
+    a INT AUTO_INCREMENT,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    KEY idx0(a),
+    KEY idx1(b),
+    KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT3_2_1;
+eval CREATE TABLE tbl_c (
+    a INT AUTO_INCREMENT,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    KEY idx0(a),
+    KEY idx1(b),
+    KEY idx2(c)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT3_2_1;
+echo CREATE TABLE tbl_d (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT2_2_1;
+eval CREATE TABLE tbl_d (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT2_2_1;
+--enable_query_log
+insert into tbl_a values (1,'a','2000/01/01'),(2,'b','2000/01/02');
+insert into tbl_b values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03');
+insert into tbl_c values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04');
+insert into tbl_d values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04'),(5,'e','2000/01/05');
+
+--echo
+--echo select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+SELECT a.a, c.b, c.c, d.a FROM tbl_a a right join tbl_b b on a.a = b.a right join tbl_c c on b.c = c.c right join tbl_d d on c.b = d.b ORDER BY d.a DESC;
+
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+}
+--enable_warnings
+--source ../include/direct_right_join_nullable_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/direct_right_left_join_nullable.test b/storage/spider/mysql-test/spider/t/direct_right_left_join_nullable.test
new file mode 100644
index 00000000..fefe2558
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/direct_right_left_join_nullable.test
@@ -0,0 +1,212 @@
+--source ../include/direct_right_left_join_nullable_init.inc
+
+--echo
+--echo drop and create databases
+--connection master_1
+--disable_warnings
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table and insert
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_DROP_TABLES6;
+    echo CHILD2_1_DROP_TABLES4;
+    echo CHILD2_1_DROP_TABLES3;
+    echo CHILD2_1_CREATE_TABLES;
+    echo CHILD2_1_CREATE_TABLES6;
+    echo CHILD2_1_CREATE_TABLES4;
+    echo CHILD2_1_CREATE_TABLES3;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  eval $CHILD2_1_DROP_TABLES6;
+  eval $CHILD2_1_DROP_TABLES4;
+  eval $CHILD2_1_DROP_TABLES3;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  eval $CHILD2_1_CREATE_TABLES6;
+  eval $CHILD2_1_CREATE_TABLES4;
+  eval $CHILD2_1_CREATE_TABLES3;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tbl_a;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    KEY idx0(a),
+    KEY idx1(b)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    KEY idx0(a),
+    KEY idx1(b)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+echo CREATE TABLE tbl_b (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT5_2_1;
+eval CREATE TABLE tbl_b (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT5_2_1;
+echo CREATE TABLE tbl_c (
+    a INT AUTO_INCREMENT,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    KEY idx0(a),
+    KEY idx1(b),
+    KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT3_2_1;
+eval CREATE TABLE tbl_c (
+    a INT AUTO_INCREMENT,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    KEY idx0(a),
+    KEY idx1(b),
+    KEY idx2(c)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT3_2_1;
+echo CREATE TABLE tbl_d (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT2_2_1;
+eval CREATE TABLE tbl_d (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT2_2_1;
+--enable_query_log
+insert into tbl_a values (1,'a','2000/01/01'),(2,'b','2000/01/02');
+insert into tbl_b values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03');
+insert into tbl_c values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04');
+insert into tbl_d values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04'),(5,'e','2000/01/05');
+
+--echo
+--echo select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+SELECT a.a, c.b, c.c, d.a FROM tbl_a a right join tbl_b b on a.a = b.a right join tbl_c c on b.c = c.c left join tbl_d d on c.b = d.b ORDER BY d.a DESC;
+
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+}
+--enable_warnings
+--source ../include/direct_right_left_join_nullable_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/direct_right_left_right_join_nullable.test b/storage/spider/mysql-test/spider/t/direct_right_left_right_join_nullable.test
new file mode 100644
index 00000000..48882d27
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/direct_right_left_right_join_nullable.test
@@ -0,0 +1,212 @@
+--source ../include/direct_right_left_right_join_nullable_init.inc
+
+--echo
+--echo drop and create databases
+--connection master_1
+--disable_warnings
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table and insert
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_DROP_TABLES6;
+    echo CHILD2_1_DROP_TABLES4;
+    echo CHILD2_1_DROP_TABLES3;
+    echo CHILD2_1_CREATE_TABLES;
+    echo CHILD2_1_CREATE_TABLES6;
+    echo CHILD2_1_CREATE_TABLES4;
+    echo CHILD2_1_CREATE_TABLES3;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  eval $CHILD2_1_DROP_TABLES6;
+  eval $CHILD2_1_DROP_TABLES4;
+  eval $CHILD2_1_DROP_TABLES3;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  eval $CHILD2_1_CREATE_TABLES6;
+  eval $CHILD2_1_CREATE_TABLES4;
+  eval $CHILD2_1_CREATE_TABLES3;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tbl_a;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    KEY idx0(a),
+    KEY idx1(b)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    KEY idx0(a),
+    KEY idx1(b)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+echo CREATE TABLE tbl_b (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT5_2_1;
+eval CREATE TABLE tbl_b (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT5_2_1;
+echo CREATE TABLE tbl_c (
+    a INT AUTO_INCREMENT,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    KEY idx0(a),
+    KEY idx1(b),
+    KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT3_2_1;
+eval CREATE TABLE tbl_c (
+    a INT AUTO_INCREMENT,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    KEY idx0(a),
+    KEY idx1(b),
+    KEY idx2(c)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT3_2_1;
+echo CREATE TABLE tbl_d (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT2_2_1;
+eval CREATE TABLE tbl_d (
+    a INT DEFAULT 10,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10'
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT2_2_1;
+--enable_query_log
+insert into tbl_a values (1,'a','2000/01/01'),(2,'b','2000/01/02');
+insert into tbl_b values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03');
+insert into tbl_c values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04');
+insert into tbl_d values (1,'a','2000/01/01'),(2,'b','2000/01/02'),(3,'c','2000/01/03'),(4,'d','2000/01/04'),(5,'e','2000/01/05');
+
+--echo
+--echo select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+SELECT a.a, c.b, c.c, d.a FROM tbl_a a right join tbl_b b on a.a = b.a left join tbl_c c on b.c = c.c right join tbl_d d on c.b = d.b ORDER BY d.a DESC;
+
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+}
+--enable_warnings
+--source ../include/direct_right_left_right_join_nullable_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/direct_update.test b/storage/spider/mysql-test/spider/t/direct_update.test
new file mode 100644
index 00000000..e0901062
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/direct_update.test
@@ -0,0 +1,198 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO ta_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+
+--echo
+--echo direct_updating test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo update all rows with function
+UPDATE ta_l SET c = ADDDATE(c, 1);
+eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo update by primary key
+UPDATE ta_l SET b = 'x' WHERE a = 3;
+eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo update by a column without index
+UPDATE ta_l SET c = '2011-10-17' WHERE b = 'x';
+eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo update by primary key with order and limit
+UPDATE ta_l SET c = ADDDATE(c, 1) WHERE a < 4 ORDER BY b DESC LIMIT 1;
+eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo delete by primary key with order and limit
+DELETE FROM ta_l WHERE a < 4 ORDER BY c LIMIT 1;
+eval $MASTER_1_CHECK_DIRECT_DELETE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo delete by a column without index
+DELETE FROM ta_l WHERE b = 'c';
+eval $MASTER_1_CHECK_DIRECT_DELETE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+--echo delete by primary key
+DELETE FROM ta_l WHERE a = 3;
+eval $MASTER_1_CHECK_DIRECT_DELETE_STATUS;
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%handler %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/direct_update_part.test b/storage/spider/mysql-test/spider/t/direct_update_part.test
new file mode 100644
index 00000000..95e2e2ab
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/direct_update_part.test
@@ -0,0 +1,211 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+if (!$HAVE_PARTITION)
+{
+  --disable_query_log
+  --disable_result_log
+  --source test_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo with partition test
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1;
+  eval CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_COMMENT2_P_2_1;
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (1, 'a', '2008-08-01 10:21:39'),
+    (2, 'b', '2000-01-01 00:00:00'),
+    (3, 'e', '2007-06-04 20:03:11'),
+    (4, 'd', '2003-11-30 05:01:03'),
+    (5, 'c', '2001-12-31 23:59:59');
+  --enable_query_log
+  eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo update all rows with function
+  UPDATE ta_l2 SET c = ADDDATE(c, 1);
+  eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo update by primary key
+  UPDATE ta_l2 SET b = 'x' WHERE a = 3;
+  eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo update by a column without index
+  UPDATE ta_l2 SET c = '2011-10-17' WHERE b = 'x';
+  eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo update by primary key with order and limit
+  UPDATE ta_l2 SET c = ADDDATE(c, 1) WHERE a < 4 ORDER BY b DESC LIMIT 1;
+  eval $MASTER_1_CHECK_DIRECT_UPDATE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo delete by primary key with order and limit
+  DELETE FROM ta_l2 WHERE a < 4 ORDER BY c LIMIT 1;
+  eval $MASTER_1_CHECK_DIRECT_DELETE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo delete by a column without index
+  DELETE FROM ta_l2 WHERE b = 'c';
+  eval $MASTER_1_CHECK_DIRECT_DELETE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  --echo delete by primary key
+  DELETE FROM ta_l2 WHERE a = 3;
+  eval $MASTER_1_CHECK_DIRECT_DELETE_STATUS;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%handler %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%handler %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/function.test b/storage/spider/mysql-test/spider/t/function.test
new file mode 100644
index 00000000..ec2eeab9
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/function.test
@@ -0,0 +1,253 @@
+# This test tests for using functions
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo in()
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_result_log
+  }
+  --disable_query_log
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    echo CHILD2_1_DROP_TEXT_PK_TABLES1;
+    echo CHILD2_1_CREATE_TEXT_PK_TABLES1;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TEXT_PK_TABLES1;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TEXT_PK_TABLES1;
+  --enable_query_log
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_query_log
+echo CREATE TABLE t1 (
+  a VARCHAR(255),
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET3 MASTER_1_COMMENT_TEXT_PK1_1;
+eval CREATE TABLE t1 (
+  a VARCHAR(255),
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET3 $MASTER_1_COMMENT_TEXT_PK1_1;
+--enable_query_log
+insert into t1 values ('1');
+insert into t1 select a + 1 from t1;
+insert into t1 select a + 2 from t1;
+insert into t1 select a + 4 from t1;
+insert into t1 select a + 8 from t1;
+insert into t1 select a + 16 from t1;
+insert into t1 select a + 32 from t1;
+insert into t1 select a + 64 from t1;
+insert into t1 select a + 128 from t1;
+insert into t1 select a + 256 from t1;
+insert into t1 select a + 512 from t1;
+flush tables;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+select a from t1 where a in ('15', '120');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TEXT_PK_TABLES1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo date_sub()
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO ta_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 YEAR);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 QUARTER);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 MONTH);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 WEEK);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 DAY);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 HOUR);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_SUB(c, INTERVAL 1 MINUTE);
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+UPDATE ta_l SET c = DATE_ADD(c, INTERVAL 1 SECOND);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%update %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/ha.test b/storage/spider/mysql-test/spider/t/ha.test
new file mode 100644
index 00000000..c12930e4
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/ha.test
@@ -0,0 +1,878 @@
+# This test tests for ha features
+if ($USE_HA_TEST)
+{
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--source ha_test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+  --connection child2_3
+  DROP DATABASE IF EXISTS auto_test_remote3;
+  CREATE DATABASE auto_test_remote3;
+  USE auto_test_remote3;
+}
+if ($USE_CHILD_GROUP3)
+{
+  --connection child3_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+  --connection child3_2
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+  --connection child3_3
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  --connection child2_3
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  SELECT 1;
+  --connection child3_2
+  SELECT 1;
+  --connection child3_3
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_2_DROP_TABLES;
+    echo CHILD2_2_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_2_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_2_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  --disable_warnings
+  eval $CHILD3_1_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  eval $CHILD3_1_CREATE_TABLES_HA_2_1;
+  --connection child3_2
+  --disable_warnings
+  eval $CHILD3_2_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  eval $CHILD3_2_CREATE_TABLES_HA_2_1;
+  --connection child3_3
+  --disable_warnings
+  eval $CHILD3_3_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  eval $CHILD3_3_CREATE_TABLES_HA_2_1;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_HA_2_1;
+--enable_query_log
+INSERT INTO ta_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+
+--echo
+--echo select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo fail-over test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_2_HA_DROP_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_2_HA_DROP_TABLES;
+  --enable_warnings
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_CHECK_HA_STATUS;
+--error 12511
+INSERT INTO ta_l (a, b, c) VALUES
+  (6, 'e', '2011-05-05 20:04:05');
+eval $MASTER_1_CHECK_LINK_STATUS;
+eval $MASTER_1_CHECK_LINK_FAILED_LOG;
+eval $MASTER_1_CHECK_HA_STATUS;
+INSERT INTO ta_l (a, b, c) VALUES
+  (6, 'e', '2011-05-05 20:04:05');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  eval $CHILD3_1_CHECK_LINK_STATUS;
+  eval $CHILD3_1_CHECK_LINK_FAILED_LOG;
+  --connection child3_2
+  eval $CHILD3_2_CHECK_LINK_STATUS;
+  eval $CHILD3_2_CHECK_LINK_FAILED_LOG;
+  --connection child3_3
+  eval $CHILD3_3_CHECK_LINK_STATUS;
+  eval $CHILD3_3_CHECK_LINK_FAILED_LOG;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo recovery test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_2_HA_CREATE_TABLES;
+  }
+  eval $CHILD2_2_HA_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  eval $CHILD3_1_SET_RECOVERY_STATUS_2_1;
+  eval $CHILD3_1_CHECK_LINK_STATUS;
+  --connection child3_2
+  eval $CHILD3_2_SET_RECOVERY_STATUS_2_1;
+  eval $CHILD3_2_CHECK_LINK_STATUS;
+  --connection child3_3
+  eval $CHILD3_3_SET_RECOVERY_STATUS_2_1;
+  eval $CHILD3_3_CHECK_LINK_STATUS;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_SET_RECOVERY_STATUS_2_1;
+eval $MASTER_1_CHECK_LINK_STATUS;
+eval $MASTER_1_COPY_TABLES_2_1;
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  eval $CHILD3_1_SET_OK_STATUS_2_1;
+  eval $CHILD3_1_CHECK_LINK_STATUS;
+  --connection child3_2
+  eval $CHILD3_2_SET_OK_STATUS_2_1;
+  eval $CHILD3_2_CHECK_LINK_STATUS;
+  --connection child3_3
+  eval $CHILD3_3_SET_OK_STATUS_2_1;
+  eval $CHILD3_3_CHECK_LINK_STATUS;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_SET_OK_STATUS_2_1;
+eval $MASTER_1_CHECK_LINK_STATUS;
+INSERT INTO ta_l (a, b, c) VALUES
+  (8, 'g', '2011-05-05 21:33:30');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+DROP TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  --disable_warnings
+  eval $CHILD3_1_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  --connection child3_2
+  --disable_warnings
+  eval $CHILD3_2_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  --connection child3_3
+  --disable_warnings
+  eval $CHILD3_3_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+eval $MASTER_1_CHANGE_HA_MON;
+
+--echo
+--echo active standby test
+--echo create table test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_2_DROP_TABLES;
+    echo CHILD2_2_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_2_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_2_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  --disable_warnings
+  eval $CHILD3_1_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  eval $CHILD3_1_CREATE_TABLES_HA_AS_2_1;
+  --connection child3_2
+  --disable_warnings
+  eval $CHILD3_2_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  eval $CHILD3_2_CREATE_TABLES_HA_AS_2_1;
+  --connection child3_3
+  --disable_warnings
+  eval $CHILD3_3_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  eval $CHILD3_3_CREATE_TABLES_HA_AS_2_1;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_AS_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_HA_AS_2_1;
+--enable_query_log
+INSERT INTO ta_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+
+--echo
+--echo select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo fail-over test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_HA_AS_DROP_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_HA_AS_DROP_TABLES;
+  --enable_warnings
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_CHECK_HA_STATUS;
+--error 12511
+INSERT INTO ta_l (a, b, c) VALUES
+  (6, 'e', '2011-05-05 20:04:05');
+eval $MASTER_1_CHECK_LINK_STATUS;
+eval $MASTER_1_CHECK_LINK_FAILED_LOG;
+eval $MASTER_1_CHECK_HA_STATUS;
+INSERT INTO ta_l (a, b, c) VALUES
+  (6, 'e', '2011-05-05 20:04:05');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  eval $CHILD3_1_CHECK_LINK_STATUS;
+  eval $CHILD3_1_CHECK_LINK_FAILED_LOG;
+  --connection child3_2
+  eval $CHILD3_2_CHECK_LINK_STATUS;
+  eval $CHILD3_2_CHECK_LINK_FAILED_LOG;
+  --connection child3_3
+  eval $CHILD3_3_CHECK_LINK_STATUS;
+  eval $CHILD3_3_CHECK_LINK_FAILED_LOG;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo recovery test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_HA_AS_CREATE_TABLES;
+  }
+  eval $CHILD2_1_HA_AS_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  eval $CHILD3_1_SET_OK_STATUS_AS_2_1;
+  eval $CHILD3_1_CHECK_LINK_STATUS;
+  --connection child3_2
+  eval $CHILD3_2_SET_OK_STATUS_AS_2_1;
+  eval $CHILD3_2_CHECK_LINK_STATUS;
+  --connection child3_3
+  eval $CHILD3_3_SET_OK_STATUS_AS_2_1;
+  eval $CHILD3_3_CHECK_LINK_STATUS;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+eval $MASTER_1_SET_OK_STATUS_AS_2_1;
+eval $MASTER_1_CHECK_LINK_STATUS;
+INSERT INTO ta_l (a, b, c) VALUES
+  (8, 'g', '2011-05-05 21:33:30');
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+DROP TABLE ta_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  --disable_warnings
+  eval $CHILD3_1_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  --connection child3_2
+  --disable_warnings
+  eval $CHILD3_2_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  --connection child3_3
+  --disable_warnings
+  eval $CHILD3_3_DROP_TABLES_HA_2_1;
+  --enable_warnings
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+eval $MASTER_1_CHANGE_HA_MON;
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  --connection child2_3
+  DROP DATABASE IF EXISTS auto_test_remote3;
+}
+if ($USE_CHILD_GROUP3)
+{
+  --connection child3_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  --connection child3_2
+  DROP DATABASE IF EXISTS auto_test_local;
+  --connection child3_3
+  DROP DATABASE IF EXISTS auto_test_local;
+}
+--disable_query_log
+--disable_result_log
+--source ha_test_deinit.inc
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+}
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/ha_part.test b/storage/spider/mysql-test/spider/t/ha_part.test
new file mode 100644
index 00000000..72ddcfd1
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/ha_part.test
@@ -0,0 +1,1017 @@
+# This test tests for ha features
+if ($USE_HA_TEST)
+{
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--source ha_test_init.inc
+--enable_result_log
+--enable_query_log
+if (!$HAVE_PARTITION)
+{
+  --disable_query_log
+  --disable_result_log
+  --source ha_test_deinit.inc
+  --source test_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+  --connection child2_3
+  DROP DATABASE IF EXISTS auto_test_remote3;
+  CREATE DATABASE auto_test_remote3;
+  USE auto_test_remote3;
+}
+if ($USE_CHILD_GROUP3)
+{
+  --connection child3_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+  --connection child3_2
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+  --connection child3_3
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  --connection child2_3
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP3)
+{
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child3_1
+  SELECT 1;
+  --connection child3_2
+  SELECT 1;
+  --connection child3_3
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP3)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+if ($HAVE_PARTITION)
+{
+  --echo
+  --echo create table with partition test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES;
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES;
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES;
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_3_DROP_TABLES;
+      echo CHILD2_3_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_3_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_3_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    --disable_warnings
+    eval $CHILD3_1_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    eval $CHILD3_1_CREATE_TABLES_HA_P_2_1;
+    --connection child3_2
+    --disable_warnings
+    eval $CHILD3_2_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    eval $CHILD3_2_CREATE_TABLES_HA_P_2_1;
+    --connection child3_3
+    --disable_warnings
+    eval $CHILD3_3_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    eval $CHILD3_3_CREATE_TABLES_HA_P_2_1;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_warnings
+  DROP TABLE IF EXISTS ta_l2;
+  --enable_warnings
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_P_2_1;
+  eval CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_HA_P_2_1;
+  --enable_query_log
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (1, 'a', '2008-08-01 10:21:39'),
+    (2, 'b', '2000-01-01 00:00:00'),
+    (3, 'e', '2007-06-04 20:03:11'),
+    (4, 'd', '2003-11-30 05:01:03'),
+    (5, 'c', '2001-12-31 23:59:59');
+
+  --echo
+  --echo select test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    eval $CHILD2_1_SELECT_TABLES2;
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_3_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+
+  --echo
+  --echo fail-over test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_3_HA_DROP_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_3_HA_DROP_TABLES;
+    --enable_warnings
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  eval $MASTER_1_CHECK_HA_STATUS;
+  --error 12511
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (6, 'e', '2011-05-05 20:04:05');
+  eval $MASTER_1_CHECK_LINK_STATUS;
+  eval $MASTER_1_CHECK_LINK_FAILED_LOG;
+  eval $MASTER_1_CHECK_HA_STATUS;
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (6, 'e', '2011-05-05 20:04:05');
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    eval $CHILD2_1_SELECT_TABLES2;
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    eval $CHILD3_1_CHECK_LINK_STATUS;
+    eval $CHILD3_1_CHECK_LINK_FAILED_LOG;
+    --connection child3_2
+    eval $CHILD3_2_CHECK_LINK_STATUS;
+    eval $CHILD3_2_CHECK_LINK_FAILED_LOG;
+    --connection child3_3
+    eval $CHILD3_3_CHECK_LINK_STATUS;
+    eval $CHILD3_3_CHECK_LINK_FAILED_LOG;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+
+  --echo
+  --echo recovery test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_3_HA_CREATE_TABLES;
+    }
+    eval $CHILD2_3_HA_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    eval $CHILD3_1_SET_RECOVERY_STATUS_P_2_1;
+    eval $CHILD3_1_CHECK_LINK_STATUS;
+    --connection child3_2
+    eval $CHILD3_2_SET_RECOVERY_STATUS_P_2_1;
+    eval $CHILD3_2_CHECK_LINK_STATUS;
+    --connection child3_3
+    eval $CHILD3_3_SET_RECOVERY_STATUS_P_2_1;
+    eval $CHILD3_3_CHECK_LINK_STATUS;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  eval $MASTER_1_SET_RECOVERY_STATUS_P_2_1;
+  eval $MASTER_1_CHECK_LINK_STATUS;
+  eval $MASTER_1_COPY_TABLES_P_2_1;
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    eval $CHILD3_1_SET_OK_STATUS_P_2_1;
+    eval $CHILD3_1_CHECK_LINK_STATUS;
+    --connection child3_2
+    eval $CHILD3_2_SET_OK_STATUS_P_2_1;
+    eval $CHILD3_2_CHECK_LINK_STATUS;
+    --connection child3_3
+    eval $CHILD3_3_SET_OK_STATUS_P_2_1;
+    eval $CHILD3_3_CHECK_LINK_STATUS;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  eval $MASTER_1_SET_OK_STATUS_P_2_1;
+  eval $MASTER_1_CHECK_LINK_STATUS;
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (8, 'g', '2011-05-05 21:33:30'),
+    (9, 'h', '2011-05-05 22:32:10');
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  DROP TABLE ta_l2;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    eval $CHILD2_1_SELECT_TABLES2;
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_3_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    --disable_warnings
+    eval $CHILD3_1_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    --connection child3_2
+    --disable_warnings
+    eval $CHILD3_2_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    --connection child3_3
+    --disable_warnings
+    eval $CHILD3_3_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+if ($HAVE_PARTITION)
+{
+  --echo
+  --echo create table with partition test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES;
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES;
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES;
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_3_DROP_TABLES;
+      echo CHILD2_3_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_3_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_3_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    --disable_warnings
+    eval $CHILD3_1_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    eval $CHILD3_1_CREATE_TABLES_HA_AS_P_2_1;
+    --connection child3_2
+    --disable_warnings
+    eval $CHILD3_2_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    eval $CHILD3_2_CREATE_TABLES_HA_AS_P_2_1;
+    --connection child3_3
+    --disable_warnings
+    eval $CHILD3_3_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    eval $CHILD3_3_CREATE_TABLES_HA_AS_P_2_1;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_warnings
+  DROP TABLE IF EXISTS ta_l2;
+  --enable_warnings
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_HA_AS_P_2_1;
+  eval CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_HA_AS_P_2_1;
+  --enable_query_log
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (1, 'a', '2008-08-01 10:21:39'),
+    (2, 'b', '2000-01-01 00:00:00'),
+    (3, 'e', '2007-06-04 20:03:11'),
+    (4, 'd', '2003-11-30 05:01:03'),
+    (5, 'c', '2001-12-31 23:59:59');
+
+  --echo
+  --echo select test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    eval $CHILD2_1_SELECT_TABLES2;
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_3_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+
+  --echo
+  --echo fail-over test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_HA_AS_DROP_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_HA_AS_DROP_TABLES2;
+    --enable_warnings
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  eval $MASTER_1_CHECK_HA_STATUS;
+  --error 12511
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (6, 'e', '2011-05-05 20:04:05');
+  eval $MASTER_1_CHECK_LINK_STATUS;
+  eval $MASTER_1_CHECK_LINK_FAILED_LOG;
+  eval $MASTER_1_CHECK_HA_STATUS;
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (6, 'e', '2011-05-05 20:04:05');
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_3_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    eval $CHILD3_1_CHECK_LINK_STATUS;
+    eval $CHILD3_1_CHECK_LINK_FAILED_LOG;
+    --connection child3_2
+    eval $CHILD3_2_CHECK_LINK_STATUS;
+    eval $CHILD3_2_CHECK_LINK_FAILED_LOG;
+    --connection child3_3
+    eval $CHILD3_3_CHECK_LINK_STATUS;
+    eval $CHILD3_3_CHECK_LINK_FAILED_LOG;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+
+  --echo
+  --echo recovery test
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_HA_AS_CREATE_TABLES2;
+    }
+    eval $CHILD2_1_HA_AS_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    eval $CHILD3_1_SET_OK_STATUS_AS_P_2_1;
+    eval $CHILD3_1_CHECK_LINK_STATUS;
+    --connection child3_2
+    eval $CHILD3_2_SET_OK_STATUS_AS_P_2_1;
+    eval $CHILD3_2_CHECK_LINK_STATUS;
+    --connection child3_3
+    eval $CHILD3_3_SET_OK_STATUS_AS_P_2_1;
+    eval $CHILD3_3_CHECK_LINK_STATUS;
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  eval $MASTER_1_SET_OK_STATUS_AS_P_2_1;
+  eval $MASTER_1_CHECK_LINK_STATUS;
+  INSERT INTO ta_l2 (a, b, c) VALUES
+    (8, 'g', '2011-05-05 21:33:30'),
+    (9, 'h', '2011-05-05 22:32:10');
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 ORDER BY a;
+  DROP TABLE ta_l2;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    eval $CHILD2_1_SELECT_TABLES2;
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_3
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_3_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  if ($USE_CHILD_GROUP3)
+  {
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child3_1
+    --disable_warnings
+    eval $CHILD3_1_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    --connection child3_2
+    --disable_warnings
+    eval $CHILD3_2_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    --connection child3_3
+    --disable_warnings
+    eval $CHILD3_3_DROP_TABLES_HA_P_2_1;
+    --enable_warnings
+    if (!$OUTPUT_CHILD_GROUP3)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  --connection child2_3
+  DROP DATABASE IF EXISTS auto_test_remote3;
+}
+if ($USE_CHILD_GROUP3)
+{
+  --connection child3_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  --connection child3_2
+  DROP DATABASE IF EXISTS auto_test_local;
+  --connection child3_3
+  DROP DATABASE IF EXISTS auto_test_local;
+}
+--disable_query_log
+--disable_result_log
+--source ha_test_deinit.inc
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+}
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/ha_test_deinit.inc b/storage/spider/mysql-test/spider/t/ha_test_deinit.inc
new file mode 100644
index 00000000..53d0409d
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/ha_test_deinit.inc
@@ -0,0 +1,30 @@
+# get connection and exist engine test
+--echo for master_1
+--connection master_1
+--source ../include/ha_deinit_master_1.inc
+--echo for child2
+if ($USE_CHILD_GROUP2)
+{
+  --echo child2_1
+  --connection child2_1
+  --source ../include/ha_deinit_child2_1.inc
+  --echo child2_2
+  --connection child2_2
+  --source ../include/ha_deinit_child2_2.inc
+  --echo child2_3
+  --connection child2_3
+  --source ../include/ha_deinit_child2_3.inc
+}
+--echo for child3
+if ($USE_CHILD_GROUP3)
+{
+  --echo child3_1
+  --connection child3_1
+  --source ../include/ha_deinit_child3_1.inc
+  --echo child3_2
+  --connection child3_2
+  --source ../include/ha_deinit_child3_2.inc
+  --echo child3_3
+  --connection child3_3
+  --source ../include/ha_deinit_child3_3.inc
+}
diff --git a/storage/spider/mysql-test/spider/t/ha_test_init.inc b/storage/spider/mysql-test/spider/t/ha_test_init.inc
new file mode 100644
index 00000000..70576ab1
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/ha_test_init.inc
@@ -0,0 +1,30 @@
+# get connection and exist engine test
+--echo for master_1
+--connection master_1
+--source ../include/ha_init_master_1.inc
+--echo for child2
+if ($USE_CHILD_GROUP2)
+{
+  --echo child2_1
+  --connection child2_1
+  --source ../include/ha_init_child2_1.inc
+  --echo child2_2
+  --connection child2_2
+  --source ../include/ha_init_child2_2.inc
+  --echo child2_3
+  --connection child2_3
+  --source ../include/ha_init_child2_3.inc
+}
+--echo for child3
+if ($USE_CHILD_GROUP3)
+{
+  --echo child3_1
+  --connection child3_1
+  --source ../include/ha_init_child3_1.inc
+  --echo child3_2
+  --connection child3_2
+  --source ../include/ha_init_child3_2.inc
+  --echo child3_3
+  --connection child3_3
+  --source ../include/ha_init_child3_3.inc
+}
diff --git a/storage/spider/mysql-test/spider/t/have_engine.inc b/storage/spider/mysql-test/spider/t/have_engine.inc
new file mode 100644
index 00000000..64bef749
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/have_engine.inc
@@ -0,0 +1,7 @@
+if (!`SELECT count(*) FROM information_schema.engines WHERE
+      (support = 'YES' OR support = 'DEFAULT') AND
+      engine = '$TEST_ENGINE_TYPE'`)
+{
+  SELECT engine, support FROM information_schema.engines;
+  --let $SKIP_REASON= "Need $TEST_ENGINE_TYPE engine"
+}
diff --git a/storage/spider/mysql-test/spider/t/have_func.inc b/storage/spider/mysql-test/spider/t/have_func.inc
new file mode 100644
index 00000000..e0823e73
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/have_func.inc
@@ -0,0 +1,5 @@
+if (!`SELECT count(*) FROM mysql.func WHERE name = '$TEST_FUNC_NAME'`)
+{
+  SELECT name FROM mysql.func;
+  --let $SKIP_REASON= "Need $TEST_FUNC_NAME function"
+}
diff --git a/storage/spider/mysql-test/spider/t/have_partition.inc b/storage/spider/mysql-test/spider/t/have_partition.inc
new file mode 100644
index 00000000..b6e69947
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/have_partition.inc
@@ -0,0 +1,7 @@
+let $HAVE_PARTITION= 0;
+if (`SELECT count(*) FROM information_schema.plugins WHERE
+      plugin_status = 'ACTIVE' AND
+      plugin_name = 'partition'`)
+{
+  let $HAVE_PARTITION= 1;
+}
diff --git a/storage/spider/mysql-test/spider/t/have_plugin.inc b/storage/spider/mysql-test/spider/t/have_plugin.inc
new file mode 100644
index 00000000..316ede9e
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/have_plugin.inc
@@ -0,0 +1,5 @@
+if (!`SELECT count(*) FROM information_schema.plugins WHERE plugin_name = '$TEST_PLUGIN_NAME'`)
+{
+  SELECT plugin_name FROM information_schema.plugins;
+  --let $SKIP_REASON= "Need $TEST_PLUGIN_NAME plugin"
+}
diff --git a/storage/spider/mysql-test/spider/t/have_trigger.inc b/storage/spider/mysql-test/spider/t/have_trigger.inc
new file mode 100644
index 00000000..32de484b
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/have_trigger.inc
@@ -0,0 +1,2 @@
+let $HAVE_TRIGGER= `SELECT COUNT(*) FROM information_schema.tables
+  WHERE TABLE_SCHEMA = 'information_schema' AND TABLE_NAME = 'TRIGGERS'`;
diff --git a/storage/spider/mysql-test/spider/t/hs_test_deinit.inc b/storage/spider/mysql-test/spider/t/hs_test_deinit.inc
new file mode 100644
index 00000000..7ec2e981
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/hs_test_deinit.inc
@@ -0,0 +1,17 @@
+# get connection and exist engine test
+--echo for master_1
+--connection master_1
+--source ../include/hs_deinit_master_1.inc
+--echo for child2
+if ($USE_CHILD_GROUP2)
+{
+  --echo child2_1
+  --connection child2_1
+  --source ../include/hs_deinit_child2_1.inc
+  --echo child2_2
+  --connection child2_2
+  --source ../include/hs_deinit_child2_2.inc
+  --echo child2_3
+  --connection child2_3
+  --source ../include/hs_deinit_child2_3.inc
+}
diff --git a/storage/spider/mysql-test/spider/t/hs_test_init.inc b/storage/spider/mysql-test/spider/t/hs_test_init.inc
new file mode 100644
index 00000000..831bf479
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/hs_test_init.inc
@@ -0,0 +1,17 @@
+# get connection and exist engine test
+--echo for master_1
+--connection master_1
+--source ../include/hs_init_master_1.inc
+--echo for child2
+if ($USE_CHILD_GROUP2)
+{
+  --echo child2_1
+  --connection child2_1
+  --source ../include/hs_init_child2_1.inc
+  --echo child2_2
+  --connection child2_2
+  --source ../include/hs_init_child2_2.inc
+  --echo child2_3
+  --connection child2_3
+  --source ../include/hs_init_child2_3.inc
+}
diff --git a/storage/spider/mysql-test/spider/t/partition_cond_push.test b/storage/spider/mysql-test/spider/t/partition_cond_push.test
new file mode 100644
index 00000000..4bcfc2aa
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/partition_cond_push.test
@@ -0,0 +1,219 @@
+--source ../include/partition_cond_push_init.inc
+if (!$HAVE_PARTITION)
+{
+  --source ../include/partition_cond_push_deinit.inc
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+--disable_warnings
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+  --connection child2_3
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  DROP DATABASE IF EXISTS auto_test_remote3;
+  CREATE DATABASE auto_test_remote3;
+  USE auto_test_remote3;
+}
+--enable_warnings
+
+--echo
+--echo create table and insert
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_2_DROP_TABLES;
+    echo CHILD2_2_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_2_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_2_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_3
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_3_DROP_TABLES;
+    echo CHILD2_3_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_3_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_3_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tbl_a;
+DROP TABLE IF EXISTS tbl_b;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    value int NOT NULL
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    value int NOT NULL
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO tbl_a (value) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_a (value) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_a (value) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+
+--echo
+--echo select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT value FROM tbl_a WHERE value < 100;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    eval $CHILD2_2_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  --connection child2_3
+  if ($USE_GENERAL_LOG)
+  {
+    eval $CHILD2_3_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_3_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+  --connection child2_3
+  DROP DATABASE IF EXISTS auto_test_remote3;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+}
+--enable_warnings
+--source ../include/partition_cond_push_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/partition_fulltext.test b/storage/spider/mysql-test/spider/t/partition_fulltext.test
new file mode 100644
index 00000000..cd9f9b05
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/partition_fulltext.test
@@ -0,0 +1,223 @@
+--source ../include/partition_fulltext_init.inc
+if (!$HAVE_PARTITION)
+{
+  --source ../include/partition_fulltext_deinit.inc
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+--disable_warnings
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+  --connection child2_3
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  DROP DATABASE IF EXISTS auto_test_remote3;
+  CREATE DATABASE auto_test_remote3;
+  USE auto_test_remote3;
+}
+--enable_warnings
+
+--echo
+--echo create table and insert
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_2_DROP_TABLES;
+    echo CHILD2_2_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_2_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_2_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_3
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_3_DROP_TABLES;
+    echo CHILD2_3_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_3_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_3_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tbl_a;
+DROP TABLE IF EXISTS tbl_b;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    words text NOT NULL,
+    PRIMARY KEY (pkey),
+    FULLTEXT (words)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    words text NOT NULL,
+    PRIMARY KEY (pkey),
+    FULLTEXT (words)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO tbl_a (pkey, words) VALUES (0, 'abc'),(1, 'def'),(2, 'ghi'),(3, 'jkl'),(4, 'mno'),(5, 'pqr'),(6, 'stu'),(7, 'vwx');
+
+--echo
+--echo select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT pkey, words FROM tbl_a WHERE match(words) against('+ghi' in boolean mode);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    eval $CHILD2_2_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  --connection child2_3
+  if ($USE_GENERAL_LOG)
+  {
+    eval $CHILD2_3_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_3_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+  --connection child2_3
+  DROP DATABASE IF EXISTS auto_test_remote3;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+}
+--enable_warnings
+--source ../include/partition_fulltext_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/partition_join_pushdown_for_single_partition.test b/storage/spider/mysql-test/spider/t/partition_join_pushdown_for_single_partition.test
new file mode 100644
index 00000000..f4e155be
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/partition_join_pushdown_for_single_partition.test
@@ -0,0 +1,222 @@
+--source ../include/partition_join_pushdown_for_single_partition_init.inc
+if (!$HAVE_PARTITION)
+{
+  --source ../include/partition_join_pushdown_for_single_partition_deinit.inc
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+--disable_warnings
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+  --connection child2_3
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  DROP DATABASE IF EXISTS auto_test_remote3;
+  CREATE DATABASE auto_test_remote3;
+  USE auto_test_remote3;
+}
+--enable_warnings
+
+--echo
+--echo create table and insert
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_DROP_TABLES2;
+    echo CHILD2_1_CREATE_TABLES;
+    echo CHILD2_1_CREATE_TABLES2;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  eval $CHILD2_1_DROP_TABLES2;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  eval $CHILD2_1_CREATE_TABLES2;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_2_DROP_TABLES;
+    echo CHILD2_2_DROP_TABLES2;
+    echo CHILD2_2_CREATE_TABLES;
+    echo CHILD2_2_CREATE_TABLES2;
+  }
+  --disable_warnings
+  eval $CHILD2_2_DROP_TABLES;
+  eval $CHILD2_2_DROP_TABLES2;
+  --enable_warnings
+  eval $CHILD2_2_CREATE_TABLES;
+  eval $CHILD2_2_CREATE_TABLES2;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_3
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_3_DROP_TABLES;
+    echo CHILD2_3_DROP_TABLES2;
+    echo CHILD2_3_CREATE_TABLES;
+    echo CHILD2_3_CREATE_TABLES2;
+  }
+  --disable_warnings
+  eval $CHILD2_3_DROP_TABLES;
+  eval $CHILD2_3_DROP_TABLES2;
+  --enable_warnings
+  eval $CHILD2_3_CREATE_TABLES;
+  eval $CHILD2_3_CREATE_TABLES2;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tbl_a;
+DROP TABLE IF EXISTS tbl_b;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    value int NOT NULL,
+    PRIMARY KEY(value)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    value int NOT NULL,
+    PRIMARY KEY(value)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+echo CREATE TABLE tbl_b (
+    value2 int NOT NULL,
+    PRIMARY KEY(value2)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_2;
+eval CREATE TABLE tbl_b (
+    value2 int NOT NULL,
+    PRIMARY KEY(value2)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_2;
+--enable_query_log
+
+insert into tbl_a values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
+insert into tbl_b values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
+
+--connection master_1
+SELECT sum(a.value), count(b.value2) FROM tbl_a a, tbl_b b WHERE a.value = b.value2 AND a.value = 5;
+SELECT sum(a.value), count(b.value2) FROM tbl_a a, tbl_b b WHERE a.value = 5 and b.value2 = 5;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    eval $CHILD2_2_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  --connection child2_3
+  if ($USE_GENERAL_LOG)
+  {
+    eval $CHILD2_3_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_3_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+  --connection child2_3
+  DROP DATABASE IF EXISTS auto_test_remote3;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+}
+--enable_warnings
+--source ../include/partition_join_pushdown_for_single_partition_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/partition_mrr.test b/storage/spider/mysql-test/spider/t/partition_mrr.test
new file mode 100644
index 00000000..2816d65c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/partition_mrr.test
@@ -0,0 +1,236 @@
+--source include/no_protocol.inc
+--source ../include/partition_mrr_init.inc
+if (!$HAVE_PARTITION)
+{
+  --source ../include/partition_mrr_deinit.inc
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+--disable_warnings
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+  --connection child2_3
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  DROP DATABASE IF EXISTS auto_test_remote3;
+  CREATE DATABASE auto_test_remote3;
+  USE auto_test_remote3;
+}
+--enable_warnings
+
+--echo
+--echo create table and insert
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_2_DROP_TABLES;
+    echo CHILD2_2_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_2_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_2_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_3
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_3_DROP_TABLES;
+    echo CHILD2_3_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_3_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_3_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tbl_a;
+DROP TABLE IF EXISTS tbl_b;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+echo CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_2;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_2;
+--enable_query_log
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_a (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_a (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+INSERT INTO tbl_b (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_b (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_b (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+
+--echo
+--echo select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+--replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+--replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+    eval $CHILD2_2_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  --connection child2_3
+  if ($USE_GENERAL_LOG)
+  {
+--replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+    eval $CHILD2_3_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_3_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+  --connection child2_3
+  DROP DATABASE IF EXISTS auto_test_remote3;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+}
+--enable_warnings
+--source ../include/partition_mrr_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/pushdown_not_like.test b/storage/spider/mysql-test/spider/t/pushdown_not_like.test
new file mode 100644
index 00000000..95e4fa6e
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/pushdown_not_like.test
@@ -0,0 +1,138 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+}
+--enable_warnings
+
+
+--echo
+--echo create table select test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    TRUNCATE TABLE mysql.general_log;
+    set global log_output = 'TABLE';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO ta_l (a, b, c) VALUES
+  (1, 'a', '2018-11-01 10:21:39'),
+  (2, 'b', '2015-06-30 23:59:59'),
+  (3, 'c', '2013-11-01 01:01:01');
+
+--echo
+--echo spider not like bug fix test
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+select * from ta_l where b not like 'a%';
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select%';
+  }
+}
+
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  SET GLOBAL log_output = @old_log_output;
+}
+
+
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/quick_mode_0.test b/storage/spider/mysql-test/spider/t/quick_mode_0.test
new file mode 100644
index 00000000..6945d97a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/quick_mode_0.test
@@ -0,0 +1,294 @@
+--source ../include/quick_mode_0_init.inc
+--echo
+--echo drop and create databases
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo create table and insert
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_2_CREATE_TABLES;
+  }
+  eval $CHILD2_2_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+echo CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_2;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_2;
+--enable_query_log
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_a (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_a (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+INSERT INTO tbl_b (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_b (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_b (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+
+--echo
+--echo select test 1
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    --replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    --replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+    eval $CHILD2_2_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+eval $MASTER_1_SET_QUICK_PAGE_BYTE_6;
+
+--echo
+--echo select test 2
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    --replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    --replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+    eval $CHILD2_2_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+eval $MASTER_1_SET_QUICK_PAGE_BYTE_0;
+
+--echo
+--echo select test 3
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    --replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    --replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+    eval $CHILD2_2_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+}
+--enable_warnings
+--source ../include/quick_mode_0_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/quick_mode_1.test b/storage/spider/mysql-test/spider/t/quick_mode_1.test
new file mode 100644
index 00000000..d382d5db
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/quick_mode_1.test
@@ -0,0 +1,294 @@
+--source ../include/quick_mode_1_init.inc
+--echo
+--echo drop and create databases
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo create table and insert
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_2_CREATE_TABLES;
+  }
+  eval $CHILD2_2_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+echo CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_2;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_2;
+--enable_query_log
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_a (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_a (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+INSERT INTO tbl_b (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_b (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_b (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+
+--echo
+--echo select test 1
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    --replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    --replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+    eval $CHILD2_2_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+eval $MASTER_1_SET_QUICK_PAGE_BYTE_6;
+
+--echo
+--echo select test 2
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    --replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    --replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+    eval $CHILD2_2_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+eval $MASTER_1_SET_QUICK_PAGE_BYTE_0;
+
+--echo
+--echo select test 3
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    --replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    --replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+    eval $CHILD2_2_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+}
+--enable_warnings
+--source ../include/quick_mode_1_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/quick_mode_2.test b/storage/spider/mysql-test/spider/t/quick_mode_2.test
new file mode 100644
index 00000000..ebb88986
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/quick_mode_2.test
@@ -0,0 +1,294 @@
+--source ../include/quick_mode_2_init.inc
+--echo
+--echo drop and create databases
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo create table and insert
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_2_CREATE_TABLES;
+  }
+  eval $CHILD2_2_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+echo CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_2;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_2;
+--enable_query_log
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_a (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_a (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+INSERT INTO tbl_b (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_b (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_b (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+
+--echo
+--echo select test 1
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    --replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    --replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+    eval $CHILD2_2_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+eval $MASTER_1_SET_QUICK_PAGE_BYTE_6;
+
+--echo
+--echo select test 2
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    --replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    --replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+    eval $CHILD2_2_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+eval $MASTER_1_SET_QUICK_PAGE_BYTE_0;
+
+--echo
+--echo select test 3
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    --replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    --replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+    eval $CHILD2_2_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+}
+--enable_warnings
+--source ../include/quick_mode_2_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/quick_mode_3.test b/storage/spider/mysql-test/spider/t/quick_mode_3.test
new file mode 100644
index 00000000..5992284f
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/quick_mode_3.test
@@ -0,0 +1,294 @@
+--source ../include/quick_mode_3_init.inc
+--echo
+--echo drop and create databases
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo create table and insert
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_2_CREATE_TABLES;
+  }
+  eval $CHILD2_2_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+echo CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_2;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_b (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_2;
+--enable_query_log
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_a (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_a (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+INSERT INTO tbl_b (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+INSERT INTO tbl_b (pkey) VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19);
+INSERT INTO tbl_b (pkey) VALUES (20),(21),(22),(23),(24),(25),(26),(27),(28),(29);
+
+--echo
+--echo select test 1
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    --replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    --replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+    eval $CHILD2_2_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+eval $MASTER_1_SET_QUICK_PAGE_BYTE_6;
+
+--echo
+--echo select test 2
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    --replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    --replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+    eval $CHILD2_2_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+eval $MASTER_1_SET_QUICK_PAGE_BYTE_0;
+
+--echo
+--echo select test 3
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a.pkey FROM tbl_a a, tbl_b b WHERE a.pkey = b.pkey;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    --replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  --connection child2_2
+  if ($USE_GENERAL_LOG)
+  {
+    --replace_regex /tmp_spider_bka_0x[0-9a-f]*/tmp_spider_bka_xxxx/
+    eval $CHILD2_2_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_2_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+}
+--enable_warnings
+--source ../include/quick_mode_3_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/show_system_tables.test b/storage/spider/mysql-test/spider/t/show_system_tables.test
new file mode 100644
index 00000000..ae8259b0
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/show_system_tables.test
@@ -0,0 +1,26 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+
+--echo
+--echo Show system tables on the Spider node
+--connection master_1
+--sorted_result
+SELECT table_name, engine FROM information_schema.tables
+    WHERE table_schema = 'mysql' AND table_name like '%spider_%';
+
+--echo
+--echo deinit
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/slave_test_deinit.inc b/storage/spider/mysql-test/spider/t/slave_test_deinit.inc
new file mode 100644
index 00000000..e9d99b7a
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/slave_test_deinit.inc
@@ -0,0 +1,6 @@
+# get connection and exist engine test
+--echo for slave1_1
+--connection slave1_1
+STOP SLAVE;
+--source ../include/deinit_slave1_1.inc
+--disconnect slave1_1
diff --git a/storage/spider/mysql-test/spider/t/slave_test_init.inc b/storage/spider/mysql-test/spider/t/slave_test_init.inc
new file mode 100644
index 00000000..739d8897
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/slave_test_init.inc
@@ -0,0 +1,44 @@
+# get connection and exist engine test
+--echo for slave1_1
+--source connect_slave1_1.inc
+--connection slave1_1
+SET SESSION sql_log_bin= 0;
+--let $SLAVE1_1_SERVER_ID=`SELECT @@global.server_id`
+--let $TEST_ENGINE_TYPE= $SLAVE1_1_ENGINE_TYPE
+--source have_partition.inc
+--source have_trigger.inc
+--source ../include/init_slave1_1.inc
+--source have_engine.inc
+--let $SLAVE1_1_SLAVE_STATUS=`SHOW SLAVE STATUS`
+if (!$SLAVE1_1_SLAVE_STATUS)
+{
+  eval CHANGE MASTER TO
+    MASTER_HOST = '127.0.0.1',
+    MASTER_USER = 'root',
+    MASTER_PASSWORD = '',
+    MASTER_PORT = $MASTER_1_MYPORT
+  ;
+}
+START SLAVE;
+--connection master_1
+call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+--connection slave1_1
+call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+  --connection child2_2
+  call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+  --connection child2_3
+  call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+}
+if ($USE_CHILD_GROUP3)
+{
+  --connection child3_1
+  call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+  --connection child3_2
+  call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+  --connection child3_3
+  call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+}
diff --git a/storage/spider/mysql-test/spider/t/slave_trx_isolation.test b/storage/spider/mysql-test/spider/t/slave_trx_isolation.test
new file mode 100644
index 00000000..f7f41358
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/slave_trx_isolation.test
@@ -0,0 +1,149 @@
+--source ../include/slave_trx_isolation_init.inc
+--echo
+--echo drop and create databases
+--connection master_1
+--disable_warnings
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+}
+--enable_warnings
+
+--echo
+--echo create table and insert
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+if ($USE_REPLICATION)
+{
+  save_master_pos;
+  --connection slave1_1
+  sync_with_master;
+  --connection master_1
+  SET SESSION sql_log_bin= 0;
+}
+--disable_query_log
+echo CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+    pkey int NOT NULL,
+    PRIMARY KEY (pkey)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+if ($USE_REPLICATION)
+{
+  SET SESSION sql_log_bin= 1;
+  --connection slave1_1
+  --disable_query_log
+  echo CREATE TABLE tbl_a (
+      pkey int NOT NULL,
+      PRIMARY KEY (pkey)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+  eval CREATE TABLE tbl_a (
+      pkey int NOT NULL,
+      PRIMARY KEY (pkey)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+  --enable_query_log
+  --connection master_1
+}
+INSERT INTO tbl_a (pkey) VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+if ($USE_REPLICATION)
+{
+  save_master_pos;
+  --connection slave1_1
+  sync_with_master;
+  --connection master_1
+  SET SESSION sql_log_bin= 0;
+}
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    --replace_regex /-[0-9a-f]{12}-[0-9a-f]+-/-xxxxxxxxxxxx-xxxxx-/
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  SELECT pkey FROM tbl_a ORDER BY pkey;
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+}
+--enable_warnings
+--source ../include/slave_trx_isolation_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/spider3_fixes.test b/storage/spider/mysql-test/spider/t/spider3_fixes.test
new file mode 100644
index 00000000..13fa6f5f
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/spider3_fixes.test
@@ -0,0 +1,292 @@
+# This test tests for Spider 3.0's bug fixes
+source include/have_log_bin.inc;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--source slave_test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+
+--echo
+--echo 3.1
+--echo auto_increment
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_INCREMENT_TABLES1;
+    echo CHILD2_1_CREATE_INCREMENT_TABLES1;
+    echo CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+    echo CHILD2_1_AUTO_INCREMENT_OFFSET2;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_INCREMENT_TABLES1;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_INCREMENT_TABLES1;
+  eval $CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+  eval $CHILD2_1_AUTO_INCREMENT_OFFSET2;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+if ($USE_REPLICATION)
+{
+  save_master_pos;
+  --connection slave1_1
+  sync_with_master;
+  --connection master_1
+  --disable_query_log
+  SET SESSION sql_log_bin= 0;
+  --enable_query_log
+}
+--disable_warnings
+DROP TABLE IF EXISTS t1, t2;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE t1 (
+  id int(11) NOT NULL AUTO_INCREMENT,
+  PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_1;
+echo CREATE TABLE t2 (
+  id int(11) NOT NULL AUTO_INCREMENT,
+  PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_1;
+echo MASTER_1_AUTO_INCREMENT_INCREMENT2;
+echo MASTER_1_AUTO_INCREMENT_OFFSET2;
+eval CREATE TABLE t1 (
+  id int(11) NOT NULL AUTO_INCREMENT,
+  PRIMARY KEY (id)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_INCREMENT1_1;
+eval CREATE TABLE t2 (
+  id int(11) NOT NULL AUTO_INCREMENT,
+  PRIMARY KEY (id)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_INCREMENT1_1;
+eval $MASTER_1_AUTO_INCREMENT_INCREMENT2;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET2;
+if ($USE_REPLICATION)
+{
+  SET SESSION sql_log_bin= 1;
+  --connection slave1_1
+  --disable_warnings
+  DROP TABLE IF EXISTS t1, t2;
+  --enable_warnings
+  echo CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_1;
+  echo CREATE TABLE t2 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_1;
+  eval CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $SLAVE1_1_ENGINE $SLAVE1_1_CHARSET $SLAVE1_1_COMMENT_INCREMENT1_1;
+  eval CREATE TABLE t2 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $SLAVE1_1_ENGINE $SLAVE1_1_CHARSET $SLAVE1_1_COMMENT_INCREMENT1_1;
+  --connection master_1
+}
+--enable_query_log
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t2 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t2;
+--disable_query_log
+echo MASTER_1_AUTO_INCREMENT_OFFSET3;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET3;
+--enable_query_log
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+--disable_query_log
+echo MASTER_1_AUTO_INCREMENT_OFFSET4;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET4;
+--enable_query_log
+INSERT INTO t2 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t2;
+--disable_query_log
+echo MASTER_1_AUTO_INCREMENT_OFFSET3;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET3;
+--enable_query_log
+INSERT INTO t1 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+SELECT id FROM t1 ORDER BY id;
+--disable_query_log
+echo MASTER_1_AUTO_INCREMENT_OFFSET4;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET4;
+--enable_query_log
+INSERT INTO t2 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+SELECT id FROM t2 ORDER BY id;
+TRUNCATE TABLE t1;
+TRUNCATE TABLE t2;
+INSERT INTO t1 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+SELECT id FROM t1 ORDER BY id;
+INSERT INTO t2 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+SELECT id FROM t2 ORDER BY id;
+SET INSERT_ID=5000;
+--disable_query_log
+echo MASTER_1_AUTO_INCREMENT_OFFSET3;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET3;
+--enable_query_log
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+--disable_query_log
+echo MASTER_1_AUTO_INCREMENT_OFFSET4;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET4;
+--enable_query_log
+INSERT INTO t2 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t2;
+INSERT INTO t1 (id) VALUES (10000);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t2 (id) VALUES (1000);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t2;
+if ($USE_REPLICATION)
+{
+  save_master_pos;
+  --connection slave1_1
+  sync_with_master;
+  SELECT id FROM t1 ORDER BY id;
+  --connection master_1
+  --disable_query_log
+  SET SESSION sql_log_bin= 0;
+  --enable_query_log
+}
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_INCREMENT_TABLES1;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+    echo CHILD2_1_AUTO_INCREMENT_OFFSET1;
+  }
+  eval $CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+  eval $CHILD2_1_AUTO_INCREMENT_OFFSET1;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source slave_test_deinit.inc
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/spider3_fixes_part.test b/storage/spider/mysql-test/spider/t/spider3_fixes_part.test
new file mode 100644
index 00000000..3288c490
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/spider3_fixes_part.test
@@ -0,0 +1,345 @@
+# This test tests for Spider 3.0's bug fixes
+source include/have_log_bin.inc;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--source slave_test_init.inc
+--enable_result_log
+--enable_query_log
+if (!$HAVE_PARTITION)
+{
+  --disable_query_log
+  --disable_result_log
+  --source slave_test_deinit.inc
+  --source test_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+
+--echo auto_increment with partition
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_INCREMENT_TABLES1;
+      echo CHILD2_1_CREATE_INCREMENT_TABLES1;
+      echo CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+      echo CHILD2_1_AUTO_INCREMENT_OFFSET2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_INCREMENT_TABLES1;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_INCREMENT_TABLES1;
+    eval $CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+    eval $CHILD2_1_AUTO_INCREMENT_OFFSET2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_INCREMENT_TABLES1;
+      echo CHILD2_2_CREATE_INCREMENT_TABLES1;
+      echo CHILD2_2_AUTO_INCREMENT_INCREMENT2;
+      echo CHILD2_2_AUTO_INCREMENT_OFFSET2;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_INCREMENT_TABLES1;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_INCREMENT_TABLES1;
+    eval $CHILD2_2_AUTO_INCREMENT_INCREMENT2;
+    eval $CHILD2_2_AUTO_INCREMENT_OFFSET2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  if ($USE_REPLICATION)
+  {
+    save_master_pos;
+    --connection slave1_1
+    sync_with_master;
+    --connection master_1
+    --disable_query_log
+    SET SESSION sql_log_bin= 0;
+    --enable_query_log
+  }
+  --disable_warnings
+  DROP TABLE IF EXISTS t1, t2;
+  --enable_warnings
+  --disable_query_log
+  echo CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_P_1;
+  echo CREATE TABLE t2 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_P_1;
+  echo MASTER_1_AUTO_INCREMENT_INCREMENT2;
+  echo MASTER_1_AUTO_INCREMENT_OFFSET2;
+  eval CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_INCREMENT1_P_1;
+  eval CREATE TABLE t2 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_INCREMENT1_P_1;
+  eval $MASTER_1_AUTO_INCREMENT_INCREMENT2;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET2;
+  if ($USE_REPLICATION)
+  {
+    SET SESSION sql_log_bin= 1;
+    --connection slave1_1
+    --disable_warnings
+    DROP TABLE IF EXISTS t1, t2;
+    --enable_warnings
+    echo CREATE TABLE t1 (
+      id int(11) NOT NULL AUTO_INCREMENT,
+      PRIMARY KEY (id)
+    ) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_P_1;
+    echo CREATE TABLE t2 (
+      id int(11) NOT NULL AUTO_INCREMENT,
+      PRIMARY KEY (id)
+    ) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_P_1;
+    eval CREATE TABLE t1 (
+      id int(11) NOT NULL AUTO_INCREMENT,
+      PRIMARY KEY (id)
+    ) $SLAVE1_1_ENGINE $SLAVE1_1_CHARSET $SLAVE1_1_COMMENT_INCREMENT1_P_1;
+    eval CREATE TABLE t2 (
+      id int(11) NOT NULL AUTO_INCREMENT,
+      PRIMARY KEY (id)
+    ) $SLAVE1_1_ENGINE $SLAVE1_1_CHARSET $SLAVE1_1_COMMENT_INCREMENT1_P_1;
+    --connection master_1
+  }
+  --enable_query_log
+  INSERT INTO t1 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t2 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t2;
+  --disable_query_log
+  echo MASTER_1_AUTO_INCREMENT_OFFSET3;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET3;
+  --enable_query_log
+  INSERT INTO t1 (id) VALUES (null);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  --disable_query_log
+  echo MASTER_1_AUTO_INCREMENT_OFFSET4;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET4;
+  --enable_query_log
+  INSERT INTO t2 (id) VALUES (null);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t2;
+  --disable_query_log
+  echo MASTER_1_AUTO_INCREMENT_OFFSET3;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET3;
+  --enable_query_log
+  INSERT INTO t1 () VALUES (),(),(),();
+  SELECT LAST_INSERT_ID();
+  SELECT id FROM t1 ORDER BY id;
+  --disable_query_log
+  echo MASTER_1_AUTO_INCREMENT_OFFSET4;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET4;
+  --enable_query_log
+  INSERT INTO t2 () VALUES (),(),(),();
+  SELECT LAST_INSERT_ID();
+  SELECT id FROM t2 ORDER BY id;
+  TRUNCATE TABLE t1;
+  TRUNCATE TABLE t2;
+  INSERT INTO t1 () VALUES (),(),(),();
+  SELECT LAST_INSERT_ID();
+  SELECT id FROM t1 ORDER BY id;
+  INSERT INTO t2 () VALUES (),(),(),();
+  SELECT LAST_INSERT_ID();
+  SELECT id FROM t2 ORDER BY id;
+  SET INSERT_ID=5000;
+  --disable_query_log
+  echo MASTER_1_AUTO_INCREMENT_OFFSET3;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET3;
+  --enable_query_log
+  INSERT INTO t1 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  --disable_query_log
+  echo MASTER_1_AUTO_INCREMENT_OFFSET4;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET4;
+  --enable_query_log
+  INSERT INTO t2 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t2;
+  INSERT INTO t1 (id) VALUES (10000);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t2 (id) VALUES (1000);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t2;
+  if ($USE_REPLICATION)
+  {
+    save_master_pos;
+    --connection slave1_1
+    sync_with_master;
+    SELECT id FROM t1 ORDER BY id;
+    --connection master_1
+    --disable_query_log
+    SET SESSION sql_log_bin= 0;
+    --enable_query_log
+  }
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_1_SELECT_INCREMENT_TABLES1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+      echo CHILD2_1_AUTO_INCREMENT_OFFSET1;
+    }
+    eval $CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+    eval $CHILD2_1_AUTO_INCREMENT_OFFSET1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_2_SELECT_INCREMENT_TABLES1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_AUTO_INCREMENT_INCREMENT1;
+      echo CHILD2_2_AUTO_INCREMENT_OFFSET1;
+    }
+    eval $CHILD2_2_AUTO_INCREMENT_INCREMENT1;
+    eval $CHILD2_2_AUTO_INCREMENT_OFFSET1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source slave_test_deinit.inc
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/spider_fixes.test b/storage/spider/mysql-test/spider/t/spider_fixes.test
new file mode 100644
index 00000000..04e806fb
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/spider_fixes.test
@@ -0,0 +1,1419 @@
+# This test tests for Spider's bug fixes
+source include/have_log_bin.inc;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--source slave_test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table and insert
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tb_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+eval CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+--enable_query_log
+INSERT INTO tb_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+
+--echo
+--echo 2.13
+--echo select table with "order by desc" and "<"
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+WHERE a < 5 ORDER BY a DESC LIMIT 3;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo select table with "order by desc" and "<="
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l
+WHERE a <= 5 ORDER BY a DESC LIMIT 3;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo 2.14
+--echo update table with range scan and split_read
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l SET c = '2000-02-02 00:00:00' WHERE a > 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l ORDER BY a;
+
+--echo
+--echo 2.15
+--echo select table with range scan
+TRUNCATE TABLE ta_l;
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES6;
+    echo CHILD2_1_CREATE_TABLES6;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES6;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES6;
+  --enable_query_log
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_query_log
+echo CREATE TABLE ta_l (
+  a int(11) NOT NULL DEFAULT '0',
+  b char(1) DEFAULT NULL,
+  c datetime DEFAULT NULL,
+  PRIMARY KEY (a, b, c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT5_2_1;
+eval CREATE TABLE ta_l (
+  a int(11) NOT NULL DEFAULT '0',
+  b char(1) DEFAULT NULL,
+  c datetime DEFAULT NULL,
+  PRIMARY KEY (a, b, c)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT5_2_1;
+--enable_query_log
+INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b >= 'b'
+AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b > 'b'
+AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a >= 4 AND b = 'd'
+AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a > 4 AND b = 'c'
+AND c = '2001-12-31 23:59:59';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b <= 'd'
+AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b < 'e'
+AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a <= 4 AND b = 'b'
+AND c = '2000-01-01 00:00:00';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a < 4 AND b = 'b'
+AND c = '2000-01-01 00:00:00';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b >= 'b'
+AND b <= 'd' AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a = 4 AND b > 'b'
+AND b < 'e' AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a <= 4 AND a >= 1
+AND b >= 'b' AND c = '2003-11-30 05:01:03';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l FORCE INDEX(PRIMARY) WHERE a < 4 AND a > 1
+AND b >= 'b' AND c = '2000-01-01 00:00:00';
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo 2.16
+--echo auto_increment insert with trigger
+if ($HAVE_TRIGGER)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_result_log
+    }
+    --disable_query_log
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      echo CHILD2_1_DROP_TABLES4;
+      echo CHILD2_1_CREATE_TABLES4;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES4;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES4;
+    --enable_query_log
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l_auto_inc (
+    a INT AUTO_INCREMENT,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT3_2_1;
+  eval CREATE TABLE ta_l_auto_inc (
+    a INT AUTO_INCREMENT,
+    b CHAR(1) DEFAULT 'c',
+    c DATETIME DEFAULT '1999-10-10 10:10:10',
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT3_2_1;
+  echo CREATE TABLE tc_l (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+  eval CREATE TABLE tc_l (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+  --enable_query_log
+  --eval CREATE TRIGGER ins_ta_l_auto_inc AFTER INSERT ON ta_l_auto_inc FOR EACH ROW BEGIN INSERT INTO tc_l (a, b, c) VALUES (NEW.a, NEW.b, NEW.c); END;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    eval $CHILD2_1_SELECT_TABLES;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  INSERT INTO ta_l_auto_inc (a, b, c) VALUES
+  (NULL, 's', '2008-12-31 20:59:59');
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_1_SELECT_TABLES4;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM tc_l ORDER BY a;
+}
+
+--echo
+--echo 2.17
+--echo engine-condition-pushdown with "or" and joining
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l WHERE a = 1 OR a IN (SELECT a FROM tb_l);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo 2.23
+--echo index merge
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_result_log
+  }
+  --disable_query_log
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    echo CHILD2_1_DROP_TABLES5;
+    echo CHILD2_1_CREATE_TABLES5;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES5;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES5;
+  --enable_query_log
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_query_log
+echo CREATE TABLE ta_l_int (
+  a INT AUTO_INCREMENT,
+  b INT DEFAULT 10,
+  c INT DEFAULT 11,
+  PRIMARY KEY(a),
+  KEY idx1(b),
+  KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1;
+eval CREATE TABLE ta_l_int (
+  a INT AUTO_INCREMENT,
+  b INT DEFAULT 10,
+  c INT DEFAULT 11,
+  PRIMARY KEY(a),
+  KEY idx1(b),
+  KEY idx2(c)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+--enable_query_log
+INSERT INTO ta_l_int (a, b, c) VALUES (1, 2, 3);
+INSERT INTO ta_l_int (a, b, c) SELECT a + 1, b + 1, c + 1 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 2, b + 2, c + 2 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 4, b + 4, c + 4 FROM ta_l_int;
+INSERT INTO ta_l_int (a, b, c) SELECT a + 8, b + 8, c + 8 FROM ta_l_int;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l_int force index(primary, idx1, idx2)
+WHERE a = 5 OR b = 5 OR c = 5 ORDER BY a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo 2.24
+--echo index scan update without PK
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l_int;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l_int (
+  a INT NOT NULL,
+  b INT DEFAULT 10,
+  c INT DEFAULT 11,
+  KEY idx1(b),
+  KEY idx2(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1;
+if ($MASTER_1_NEEDPK)
+{
+  --error ER_REQUIRES_PRIMARY_KEY
+  eval CREATE TABLE ta_l_int (
+    a INT NOT NULL,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    KEY idx1(b),
+    KEY idx2(c)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+  eval CREATE TABLE ta_l_int (
+    a INT NOT NULL,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    PRIMARY KEY(a),
+    KEY idx1(b),
+    KEY idx2(c)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+}
+if (!$MASTER_1_NEEDPK)
+{
+  eval CREATE TABLE ta_l_int (
+    a INT NOT NULL,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    KEY idx1(b),
+    KEY idx2(c)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+}
+--enable_query_log
+SELECT a, b, c FROM ta_l_int ORDER BY a;
+INSERT INTO ta_l_int (a, b, c) VALUES (0, 2, 3);
+INSERT INTO ta_l_int (a, b, c) VALUES (18, 2, 3);
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE ta_l_int SET c = 4 WHERE b = 2;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%update %';
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT a, b, c FROM ta_l_int ORDER BY a;
+
+
+--echo
+--echo 2.25
+--echo direct order limit
+--connection master_1
+eval $MASTER_1_CHECK_DIRECT_ORDER_LIMIT_STATUS;
+SELECT a, b, c FROM ta_l_int ORDER BY a LIMIT 3;
+eval $MASTER_1_CHECK_DIRECT_ORDER_LIMIT_STATUS;
+
+
+--echo
+--echo 2.26
+--echo lock tables
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_LOCK_TABLES1;
+    echo CHILD2_1_DROP_LOCK_TABLES2;
+    echo CHILD2_1_CREATE_LOCK_TABLES1;
+    echo CHILD2_1_CREATE_LOCK_TABLES2;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_LOCK_TABLES1;
+  eval $CHILD2_1_DROP_LOCK_TABLES2;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_LOCK_TABLES1;
+  eval $CHILD2_1_CREATE_LOCK_TABLES2;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  --connection child2_2
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_2_DROP_LOCK_TABLES1;
+    echo CHILD2_2_DROP_LOCK_TABLES2;
+    echo CHILD2_2_CREATE_LOCK_TABLES1;
+    echo CHILD2_2_CREATE_LOCK_TABLES2;
+  }
+  --disable_warnings
+  eval $CHILD2_2_DROP_LOCK_TABLES1;
+  eval $CHILD2_2_DROP_LOCK_TABLES2;
+  --enable_warnings
+  eval $CHILD2_2_CREATE_LOCK_TABLES1;
+  eval $CHILD2_2_CREATE_LOCK_TABLES2;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS t1;
+DROP TABLE IF EXISTS t2;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE t1 (
+  id int(11) NOT NULL,
+  PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_LOCK1;
+eval CREATE TABLE t1 (
+  id int(11) NOT NULL,
+  PRIMARY KEY (id)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_LOCK1;
+echo CREATE TABLE t2 (
+  id int(11) NOT NULL,
+  PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_LOCK2;
+eval CREATE TABLE t2 (
+  id int(11) NOT NULL,
+  PRIMARY KEY (id)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_LOCK2;
+--enable_query_log
+LOCK TABLES t1 READ, t2 READ;
+UNLOCK TABLES;
+
+
+--echo
+--echo auto_increment
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_INCREMENT_TABLES1;
+    echo CHILD2_1_CREATE_INCREMENT_TABLES1;
+    echo CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+    echo CHILD2_1_AUTO_INCREMENT_OFFSET2;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_INCREMENT_TABLES1;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_INCREMENT_TABLES1;
+  eval $CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+  eval $CHILD2_1_AUTO_INCREMENT_OFFSET2;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+if ($USE_REPLICATION)
+{
+  save_master_pos;
+  --connection slave1_1
+  sync_with_master;
+  --connection master_1
+  --disable_query_log
+  SET SESSION sql_log_bin= 0;
+  --enable_query_log
+}
+--disable_warnings
+DROP TABLE IF EXISTS t1;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE t1 (
+  id int(11) NOT NULL AUTO_INCREMENT,
+  PRIMARY KEY (id)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_1;
+echo MASTER_1_AUTO_INCREMENT_INCREMENT2;
+echo MASTER_1_AUTO_INCREMENT_OFFSET2;
+eval CREATE TABLE t1 (
+  id int(11) NOT NULL AUTO_INCREMENT,
+  PRIMARY KEY (id)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_INCREMENT1_1;
+eval $MASTER_1_AUTO_INCREMENT_INCREMENT2;
+eval $MASTER_1_AUTO_INCREMENT_OFFSET2;
+if ($USE_REPLICATION)
+{
+  SET SESSION sql_log_bin= 1;
+  --connection slave1_1
+  --disable_warnings
+  DROP TABLE IF EXISTS t1;
+  --enable_warnings
+  echo CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_1;
+  eval CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $SLAVE1_1_ENGINE $SLAVE1_1_CHARSET $SLAVE1_1_COMMENT_INCREMENT1_1;
+  --connection master_1
+}
+--enable_query_log
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t1 (id) VALUES (null);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t1 () VALUES (),(),(),();
+SELECT LAST_INSERT_ID();
+SELECT id FROM t1 ORDER BY id;
+SET INSERT_ID=5000;
+INSERT INTO t1 () VALUES ();
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t1 (id) VALUES (10000);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+INSERT INTO t1 (id) VALUES (1000);
+SELECT LAST_INSERT_ID();
+SELECT MAX(id) FROM t1;
+if ($USE_REPLICATION)
+{
+  save_master_pos;
+  --connection slave1_1
+  sync_with_master;
+  SELECT id FROM t1 ORDER BY id;
+  --connection master_1
+  --disable_query_log
+  SET SESSION sql_log_bin= 0;
+  --enable_query_log
+}
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_INCREMENT_TABLES1;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+    echo CHILD2_1_AUTO_INCREMENT_OFFSET1;
+  }
+  eval $CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+  eval $CHILD2_1_AUTO_INCREMENT_OFFSET1;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+
+--echo
+--echo read only
+let $MASTER_1_ENGINE_IS_SPIDER=
+  `SELECT IF('$MASTER_1_ENGINE_TYPE' = 'Spider' OR
+    '$MASTER_1_HIDDEN_ENGINE_TYPE' = 'Spider', 1, 0)`;
+if ($MASTER_1_ENGINE_IS_SPIDER)
+{
+  --connection master_1
+  --disable_warnings
+  DROP TABLE IF EXISTS t1;
+  --enable_warnings
+  --disable_query_log
+  echo CREATE TABLE t1 (
+    id int(11) NOT NULL,
+    PRIMARY KEY (id)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_READONLY1_1;
+  eval CREATE TABLE t1 (
+    id int(11) NOT NULL,
+    PRIMARY KEY (id)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_READONLY1_1;
+  --let $MIN_VAL= `SELECT MIN(id) FROM t1`
+  --enable_query_log
+  SELECT id FROM t1 ORDER BY id;
+  --error 12518
+  INSERT INTO t1 (id) VALUES (1);
+  --error 12518
+  eval UPDATE t1 SET id = 4 WHERE id = $MIN_VAL;
+  --error 12518
+  eval DELETE FROM t1 WHERE id = $MIN_VAL;
+  --error 12518
+  DELETE FROM t1;
+  --error 12518
+  TRUNCATE t1;
+}
+if (!$MASTER_1_ENGINE_IS_SPIDER)
+{
+  --echo skipped
+}
+
+
+--echo
+--echo 2.27
+--echo error mode
+if ($MASTER_1_ENGINE_IS_SPIDER)
+{
+  --connection master_1
+  --disable_warnings
+  DROP TABLE IF EXISTS t1;
+  --enable_warnings
+  --disable_query_log
+  echo CREATE TABLE t1 (
+    id int(11) NOT NULL,
+    PRIMARY KEY (id)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_ERROR_MODE1_1;
+  eval CREATE TABLE t1 (
+    id int(11) NOT NULL,
+    PRIMARY KEY (id)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_ERROR_MODE1_1;
+  --enable_query_log
+  SELECT id FROM t1 ORDER BY id;
+  INSERT INTO t1 (id) VALUES (1);
+  DELETE FROM t1;
+  TRUNCATE t1;
+}
+if (!$MASTER_1_ENGINE_IS_SPIDER)
+{
+  --echo skipped
+}
+
+
+--echo
+--echo 3.0
+--echo is null
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_result_log
+  }
+  --disable_query_log
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    echo CHILD2_1_DROP_TEXT_KEY_TABLES1;
+    echo CHILD2_1_CREATE_TEXT_KEY_TABLES1;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TEXT_KEY_TABLES1;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TEXT_KEY_TABLES1;
+  --enable_query_log
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS t1;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE t1 (
+  a VARCHAR(255),
+  b VARCHAR(255),
+  c VARCHAR(255),
+  KEY idx1(a,b),
+  KEY idx2(b),
+  PRIMARY KEY(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_TEXT_KEY1_1;
+eval CREATE TABLE t1 (
+  a VARCHAR(255),
+  b VARCHAR(255),
+  c VARCHAR(255),
+  KEY idx1(a,b),
+  KEY idx2(b),
+  PRIMARY KEY(c)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_TEXT_KEY1_1;
+--enable_query_log
+insert into t1 values (null, null, '2048');
+insert into t1 values ('1', '1', '1');
+insert into t1 select a + 1,   b + 1,   c + 1   from t1;
+insert into t1 select a + 2,   b + 2,   c + 2   from t1;
+insert into t1 select a + 4,   b + 4,   c + 4   from t1;
+insert into t1 select a + 8,   b + 8,   c + 8   from t1;
+insert into t1 select a + 16,  b + 16,  c + 16  from t1;
+insert into t1 select a + 32,  b + 32,  c + 32  from t1;
+insert into t1 select a + 64,  b + 64,  c + 64  from t1;
+insert into t1 select a + 128, b + 128, c + 128 from t1;
+insert into t1 select a + 256, b + 256, c + 256 from t1;
+insert into t1 select a + 512, b + 512, c + 512 from t1;
+flush tables;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+select a from t1 where a is null order by a limit 30;
+select b from t1 where b is null order by b limit 30;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TEXT_PK_TABLES1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+
+--echo
+--echo direct_order_limit
+--connection master_1
+TRUNCATE TABLE t1;
+insert into t1 values ('1', '1', '1');
+insert into t1 select a + 1,   b + 1,   c + 1   from t1;
+insert into t1 select a + 2,   b + 2,   c + 2   from t1;
+insert into t1 select a + 4,   b + 4,   c + 4   from t1;
+insert into t1 select a + 8,   b + 8,   c + 8   from t1;
+insert into t1 select a + 16,  b + 16,  c + 16  from t1;
+insert into t1 select a,       b + 32,  c + 32  from t1;
+insert into t1 select a,       b + 64,  c + 64  from t1;
+insert into t1 select a,       b + 128, c + 128 from t1;
+flush tables;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+select a, b, c from t1 where a = '10' and b <> '100' order by c desc limit 5;
+select a, c from t1 where a = '10' order by b desc limit 5;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+  }
+  eval $CHILD2_1_SELECT_TEXT_PK_TABLES1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source slave_test_deinit.inc
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/spider_fixes_part.test b/storage/spider/mysql-test/spider/t/spider_fixes_part.test
new file mode 100644
index 00000000..d2be62a6
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/spider_fixes_part.test
@@ -0,0 +1,899 @@
+# This test tests for Spider's bug fixes
+source include/have_log_bin.inc;
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--source slave_test_init.inc
+--enable_result_log
+--enable_query_log
+if (!$HAVE_PARTITION)
+{
+  --disable_query_log
+  --disable_result_log
+  --source slave_test_deinit.inc
+  --source test_deinit.inc
+  --enable_result_log
+  --enable_query_log
+  --enable_warnings
+  skip Test requires partitioning;
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+  CREATE DATABASE auto_test_local;
+  USE auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tb_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+eval CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+--enable_query_log
+INSERT INTO tb_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+
+--echo
+--echo 2.17
+--echo partition with sort
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1;
+  eval CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_COMMENT2_P_2_1;
+  --enable_query_log
+  INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2 WHERE a > 1
+  ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo
+--echo 2.23
+--echo partition update with moving partition
+if ($HAVE_PARTITION)
+{
+  --connection master_1
+  --disable_warnings
+  DROP TABLE IF EXISTS ta_l2;
+  --enable_warnings
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1;
+  eval CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_COMMENT2_P_2_1;
+  --enable_query_log
+  INSERT INTO ta_l2 (a, b, c) VALUES (3, 'B', '2010-09-26 00:00:00');
+  UPDATE ta_l2 SET a = 4 WHERE a = 3;
+  SELECT a, b, date_format(c, '%Y-%m-%d %H:%i:%s') FROM ta_l2;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%update %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%delete %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%update %';
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%delete %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo index merge with partition
+if ($HAVE_PARTITION)
+{
+  --connection master_1
+  --disable_warnings
+  DROP TABLE IF EXISTS ta_l_int;
+  --enable_warnings
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_result_log
+    }
+    --disable_query_log
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      echo CHILD2_2_DROP_TABLES5;
+      echo CHILD2_2_CREATE_TABLES5;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES5;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES5;
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      echo CHILD2_1_DROP_TABLES5;
+      echo CHILD2_1_CREATE_TABLES5;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES5;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES5;
+    --enable_query_log
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  echo CREATE TABLE ta_l_int (
+    a INT AUTO_INCREMENT,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    PRIMARY KEY(a),
+    KEY idx1(b),
+    KEY idx2(c)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT3_P_2_1;
+  eval CREATE TABLE ta_l_int (
+    a INT AUTO_INCREMENT,
+    b INT DEFAULT 10,
+    c INT DEFAULT 11,
+    PRIMARY KEY(a),
+    KEY idx1(b),
+    KEY idx2(c)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT3_P_2_1;
+  --enable_query_log
+  INSERT INTO ta_l_int (a, b, c) VALUES (1, 2, 3);
+  INSERT INTO ta_l_int (a, b, c) SELECT a + 1, b + 1, c + 1 FROM ta_l_int;
+  INSERT INTO ta_l_int (a, b, c) SELECT a + 2, b + 2, c + 2 FROM ta_l_int;
+  INSERT INTO ta_l_int (a, b, c) SELECT a + 4, b + 4, c + 4 FROM ta_l_int;
+  INSERT INTO ta_l_int (a, b, c) SELECT a + 8, b + 8, c + 8 FROM ta_l_int;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  SELECT a, b, c FROM ta_l_int force index(primary, idx1, idx2)
+  WHERE a = 5 OR b = 5 OR c = 5 ORDER BY a;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+
+--echo
+--echo 2.26
+--echo auto_increment with partition
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_INCREMENT_TABLES1;
+      echo CHILD2_1_CREATE_INCREMENT_TABLES1;
+      echo CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+      echo CHILD2_1_AUTO_INCREMENT_OFFSET2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_INCREMENT_TABLES1;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_INCREMENT_TABLES1;
+    eval $CHILD2_1_AUTO_INCREMENT_INCREMENT2;
+    eval $CHILD2_1_AUTO_INCREMENT_OFFSET2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_INCREMENT_TABLES1;
+      echo CHILD2_2_CREATE_INCREMENT_TABLES1;
+      echo CHILD2_2_AUTO_INCREMENT_INCREMENT2;
+      echo CHILD2_2_AUTO_INCREMENT_OFFSET2;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_INCREMENT_TABLES1;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_INCREMENT_TABLES1;
+    eval $CHILD2_2_AUTO_INCREMENT_INCREMENT2;
+    eval $CHILD2_2_AUTO_INCREMENT_OFFSET2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  if ($USE_REPLICATION)
+  {
+    save_master_pos;
+    --connection slave1_1
+    sync_with_master;
+    --connection master_1
+    --disable_query_log
+    SET SESSION sql_log_bin= 0;
+    --enable_query_log
+  }
+  --disable_warnings
+  DROP TABLE IF EXISTS t1;
+  --enable_warnings
+  --disable_query_log
+  echo CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_INCREMENT1_P_1;
+  echo MASTER_1_AUTO_INCREMENT_INCREMENT2;
+  echo MASTER_1_AUTO_INCREMENT_OFFSET2;
+  eval CREATE TABLE t1 (
+    id int(11) NOT NULL AUTO_INCREMENT,
+    PRIMARY KEY (id)
+  ) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_INCREMENT1_P_1;
+  eval $MASTER_1_AUTO_INCREMENT_INCREMENT2;
+  eval $MASTER_1_AUTO_INCREMENT_OFFSET2;
+  if ($USE_REPLICATION)
+  {
+    SET SESSION sql_log_bin= 1;
+    --connection slave1_1
+    --disable_warnings
+    DROP TABLE IF EXISTS t1;
+    --enable_warnings
+    echo CREATE TABLE t1 (
+      id int(11) NOT NULL AUTO_INCREMENT,
+      PRIMARY KEY (id)
+    ) SLAVE1_1_ENGINE SLAVE1_1_CHARSET SLAVE1_1_COMMENT_INCREMENT1_P_1;
+    eval CREATE TABLE t1 (
+      id int(11) NOT NULL AUTO_INCREMENT,
+      PRIMARY KEY (id)
+    ) $SLAVE1_1_ENGINE $SLAVE1_1_CHARSET $SLAVE1_1_COMMENT_INCREMENT1_P_1;
+    --connection master_1
+  }
+  --enable_query_log
+  INSERT INTO t1 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t1 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t1 (id) VALUES (null);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t1 (id) VALUES (null);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t1 () VALUES (),(),(),();
+  SELECT LAST_INSERT_ID();
+  SELECT id FROM t1 ORDER BY id;
+  SET INSERT_ID=5000;
+  INSERT INTO t1 () VALUES ();
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t1 (id) VALUES (10000);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  INSERT INTO t1 (id) VALUES (1000);
+  SELECT LAST_INSERT_ID();
+  SELECT MAX(id) FROM t1;
+  if ($USE_REPLICATION)
+  {
+    save_master_pos;
+    --connection slave1_1
+    sync_with_master;
+    SELECT id FROM t1 ORDER BY id;
+    --connection master_1
+    --disable_query_log
+    SET SESSION sql_log_bin= 0;
+    --enable_query_log
+  }
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_1_SELECT_INCREMENT_TABLES1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+      echo CHILD2_1_AUTO_INCREMENT_OFFSET1;
+    }
+    eval $CHILD2_1_AUTO_INCREMENT_INCREMENT1;
+    eval $CHILD2_1_AUTO_INCREMENT_OFFSET1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+    }
+    eval $CHILD2_2_SELECT_INCREMENT_TABLES1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_AUTO_INCREMENT_INCREMENT1;
+      echo CHILD2_2_AUTO_INCREMENT_OFFSET1;
+    }
+    eval $CHILD2_2_AUTO_INCREMENT_INCREMENT1;
+    eval $CHILD2_2_AUTO_INCREMENT_OFFSET1;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo
+--echo Test ORDER BY with LIMIT and OFFSET
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES7;
+      echo CHILD2_1_CREATE_TABLES7;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES7;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES7;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  --disable_warnings
+  DROP TABLE IF EXISTS ta_ob;
+  --enable_warnings
+  echo CREATE TABLE ta_ob (
+    a VARCHAR(50) NOT NULL,
+    b VARCHAR(50) NULL DEFAULT NULL,
+    c VARCHAR(100) NULL DEFAULT NULL,
+    d DATETIME(0) NULL DEFAULT NULL,
+    e INT(11) NOT NULL,
+    f INT(10) NULL DEFAULT NULL,
+    PRIMARY KEY (a, e)
+  ) $MASTER_1_ENGINE $MASTER_1_COMMENT6_P_1_1;
+  eval CREATE TABLE ta_ob (
+    a VARCHAR(50) NOT NULL,
+    b VARCHAR(50) NULL DEFAULT NULL,
+    c VARCHAR(100) NULL DEFAULT NULL,
+    d DATETIME(0) NULL DEFAULT NULL,
+    e INT(11) NOT NULL,
+    f INT(10) NULL DEFAULT NULL,
+    PRIMARY KEY (a, e)
+  ) $MASTER_1_ENGINE $MASTER_1_COMMENT6_P_1_1;
+  --enable_query_log
+  INSERT INTO ta_ob VALUES ('0B95CD65DF994BC9A09A6AABE53A2733',
+                            '6CFED89FF6A84C7AA55C3C432663D094',
+                            '51041110620304', '2018-08-02 13:41:13',
+                            510411, 1);
+  INSERT INTO ta_ob VALUES ('15E8D55EF099443BAEE639E60A4650BD',
+                            '879DC2A0B6AC46D9A62E8EA47E2970F2',
+                            '51041110620301', NULL,
+                            510411, 0);
+  INSERT INTO ta_ob VALUES ('51ECF2C0CD3C48D99C91792E99D3C1A0',
+                            '017B8A460DBC444682B791305EF75356',
+                            '51041110620308', '2018-08-02 13:48:29',
+                            510411, 0);
+  INSERT INTO ta_ob VALUES ('093B37A93A534DF883787AF5F6799674',
+                            '996C7F14989D480589A553717D735E3E',
+                            '51041110620302', '2018-08-02 13:48:30',
+                            510411, 0);
+  INSERT INTO ta_ob VALUES ('53F5266FB069499AB6234755CACA2583',
+                            '017B8A460DBC444682B791305EF75356',
+                            '51041110620308', '2018-08-02 13:48:28',
+                            510411, 0);
+  INSERT INTO ta_ob VALUES ('56E59BC4BDC143868D4A219C2D07A24B',
+                            '821E71E6ABB4404EBAA349BB681089F8',
+                            '51041110620310', '2018-08-02 13:48:27',
+                            510411, 0);
+  INSERT INTO ta_ob VALUES ('56B68DA68D6D4A04A08B453D09AD7B70',
+                            '821E71E6ABB4404EBAA349BB681089F8',
+                            '51041110620310', '2018-08-02 13:48:28',
+                            510411, 0);
+  SELECT * FROM ta_ob WHERE c LIKE "%510411106%" AND e = 510411 AND f != 1 ORDER BY d,c LIMIT 5 OFFSET 1;
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES7;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+
+--echo #
+--echo # MDEV-25985 Spider handle ">=" as ">" in some cases
+--echo #
+
+--connection child2_1
+--disable_warnings
+DROP TABLE IF EXISTS t1;
+--enable_warnings
+eval CREATE TABLE t1 (
+    a int,
+    b int,
+    c int,
+    PRIMARY KEY (a),
+    KEY (b,c)
+) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+
+INSERT INTO t1 VALUES (1, 1, 1), (2, 2, 1);
+
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS t1;
+--enable_warnings
+eval CREATE TABLE t1 (
+    a int,
+    b int,
+    c int,
+    PRIMARY KEY (a),
+    KEY (b,c)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_MDEV_25985;
+
+--connection master_1
+SELECT * FROM t1 WHERE c > 0 AND b >= 1 AND b <= 2;
+SELECT * FROM t1 WHERE c < 3 AND b <= 2;
+
+--echo
+--echo Crash from b4a2baffa82e5c07b96a1c752228560dcac1359b (MDEV-11084)
+--echo Fixed with 4968049799193394d442f26b4e3a8d95b185be72
+--echo Spider crashed if the first partition was not used first
+if ($HAVE_PARTITION)
+{
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_2_DROP_TABLES;
+      echo CHILD2_2_CREATE_TABLES;
+    }
+    --disable_warnings
+    eval $CHILD2_2_DROP_TABLES;
+    --enable_warnings
+    eval $CHILD2_2_CREATE_TABLES;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    --connection child2_1
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      echo CHILD2_1_DROP_TABLES2;
+      echo CHILD2_1_CREATE_TABLES2;
+    }
+    --disable_warnings
+    eval $CHILD2_1_DROP_TABLES2;
+    --enable_warnings
+    eval $CHILD2_1_CREATE_TABLES2;
+    if ($OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+    }
+    if ($USE_GENERAL_LOG)
+    {
+      TRUNCATE TABLE mysql.general_log;
+    }
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+  --connection master_1
+  --disable_query_log
+  --disable_warnings
+  DROP TABLE IF EXISTS ta_l2;
+  --enable_warnings
+  echo CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) MASTER_1_ENGINE MASTER_1_COMMENT2_P_2_1;
+  eval CREATE TABLE ta_l2 (
+    a INT,
+    b CHAR(1),
+    c DATETIME,
+    PRIMARY KEY(a)
+  ) $MASTER_1_ENGINE $MASTER_1_COMMENT2_P_2_1;
+  --enable_query_log
+  INSERT INTO ta_l2 SELECT a, b, c FROM tb_l;
+  --echo Query a Spider table only using the second partition
+  SELECT a,b,c FROM ta_l2 PARTITION (pt2);
+  --echo Query a Spider table only using the first partition
+  SELECT a,b,c FROM ta_l2 PARTITION (pt1);
+  --echo Query a Spider table by all paritions, then the second partition
+  SELECT min(a), max(a), min(b), max(b) FROM ta_l2;
+  SELECT a,b,c FROM ta_l2 PARTITION (pt2);
+  if ($USE_CHILD_GROUP2)
+  {
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --disable_query_log
+      --disable_result_log
+    }
+    --connection child2_2
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_2_SELECT_TABLES;
+    --connection child2_1
+    if ($USE_GENERAL_LOG)
+    {
+      SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+    }
+    eval $CHILD2_1_SELECT_TABLES2;
+    if (!$OUTPUT_CHILD_GROUP2)
+    {
+      --enable_query_log
+      --enable_result_log
+    }
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_REPLICATION)
+{
+  --connection slave1_1
+  DROP DATABASE IF EXISTS auto_test_local;
+}
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source slave_test_deinit.inc
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/spider_wrapper_protocols.test b/storage/spider/mysql-test/spider/t/spider_wrapper_protocols.test
new file mode 100644
index 00000000..d0753cf7
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/spider_wrapper_protocols.test
@@ -0,0 +1,16 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_query_log
+
+--connection master_1
+SELECT * FROM information_schema.spider_wrapper_protocols;
+
+--disable_query_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/test_deinit.inc b/storage/spider/mysql-test/spider/t/test_deinit.inc
new file mode 100644
index 00000000..5a82b43c
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/test_deinit.inc
@@ -0,0 +1,39 @@
+# get connection and exist engine test
+--echo for master_1
+--connection master_1
+--source ../include/deinit_master_1.inc
+--disconnect master_1
+--echo for child2
+if ($USE_CHILD_GROUP2)
+{
+  --echo child2_1
+  --connection child2_1
+  --source ../include/deinit_child2_1.inc
+  --disconnect child2_1
+  --disconnect child2_1_2
+  --echo child2_2
+  --connection child2_2
+  --source ../include/deinit_child2_2.inc
+  --disconnect child2_2
+  --disconnect child2_2_2
+  --echo child2_3
+  --connection child2_3
+  --source ../include/deinit_child2_3.inc
+  --disconnect child2_3
+}
+--echo for child3
+if ($USE_CHILD_GROUP3)
+{
+  --echo child3_1
+  --connection child3_1
+  --source ../include/deinit_child3_1.inc
+  --disconnect child3_1
+  --echo child3_2
+  --connection child3_2
+  --source ../include/deinit_child3_2.inc
+  --disconnect child3_2
+  --echo child3_3
+  --connection child3_3
+  --source ../include/deinit_child3_3.inc
+  --disconnect child3_3
+}
diff --git a/storage/spider/mysql-test/spider/t/test_init.inc b/storage/spider/mysql-test/spider/t/test_init.inc
new file mode 100644
index 00000000..f2cd6c02
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/test_init.inc
@@ -0,0 +1,74 @@
+# get connection and exist engine test
+--echo for master_1
+--source connect_master_1.inc
+--connection master_1
+CALL mtr.add_suppression("unknown variable");
+SET SESSION sql_log_bin= 0;
+--let $MASTER_1_SERVER_ID=`SELECT @@global.server_id`
+--let $TEST_ENGINE_TYPE= $MASTER_1_ENGINE_TYPE
+--source have_partition.inc
+--source have_trigger.inc
+--source ../include/init_master_1.inc
+--source have_engine.inc
+--echo for child2
+if ($USE_CHILD_GROUP2)
+{
+  --echo child2_1
+  --source connect_child2_1.inc
+  --connection child2_1
+  CALL mtr.add_suppression("unknown variable *");
+  SET SESSION sql_log_bin= 0;
+  --let $CHILD2_1_SERVER_ID=`SELECT @@global.server_id`
+  --let $TEST_ENGINE_TYPE= $CHILD2_1_ENGINE_TYPE
+  --source ../include/init_child2_1.inc
+  --source have_engine.inc
+  --echo child2_2
+  --source connect_child2_2.inc
+  --connection child2_2
+  CALL mtr.add_suppression("unknown variable *");
+  SET SESSION sql_log_bin= 0;
+  --let $CHILD2_2_SERVER_ID=`SELECT @@global.server_id`
+  --let $TEST_ENGINE_TYPE= $CHILD2_2_ENGINE_TYPE
+  --source ../include/init_child2_2.inc
+  --source have_engine.inc
+  --echo child2_3
+  --source connect_child2_3.inc
+  --connection child2_3
+  CALL mtr.add_suppression("unknown variable *");
+  SET SESSION sql_log_bin= 0;
+  --let $CHILD2_3_SERVER_ID=`SELECT @@global.server_id`
+  --let $TEST_ENGINE_TYPE= $CHILD2_3_ENGINE_TYPE
+  --source ../include/init_child2_3.inc
+  --source have_engine.inc
+}
+--echo for child3
+if ($USE_CHILD_GROUP3)
+{
+  --echo child3_1
+  --source connect_child3_1.inc
+  --connection child3_1
+  CALL mtr.add_suppression("unknown variable *");
+  SET SESSION sql_log_bin= 0;
+  --let $CHILD3_1_SERVER_ID=`SELECT @@global.server_id`
+  --let $TEST_ENGINE_TYPE= $CHILD3_1_ENGINE_TYPE
+  --source ../include/init_child3_1.inc
+  --source have_engine.inc
+  --echo child3_2
+  --source connect_child3_2.inc
+  --connection child3_2
+  CALL mtr.add_suppression("unknown variable *");
+  SET SESSION sql_log_bin= 0;
+  --let $CHILD3_2_SERVER_ID=`SELECT @@global.server_id`
+  --let $TEST_ENGINE_TYPE= $CHILD3_2_ENGINE_TYPE
+  --source ../include/init_child3_2.inc
+  --source have_engine.inc
+  --echo child3_3
+  --source connect_child3_3.inc
+  --connection child3_3
+  CALL mtr.add_suppression("unknown variable *");
+  SET SESSION sql_log_bin= 0;
+  --let $CHILD3_3_SERVER_ID=`SELECT @@global.server_id`
+  --let $TEST_ENGINE_TYPE= $CHILD3_3_ENGINE_TYPE
+  --source ../include/init_child3_3.inc
+  --source have_engine.inc
+}
diff --git a/storage/spider/mysql-test/spider/t/timestamp.test b/storage/spider/mysql-test/spider/t/timestamp.test
new file mode 100644
index 00000000..225851a9
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/timestamp.test
@@ -0,0 +1,528 @@
+--source timestamp_init.inc
+
+--echo
+--echo Initialize Time Zone
+--connection master_1
+SET GLOBAL time_zone='MET';
+SET time_zone='MET';
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  SET GLOBAL time_zone='MET';
+  SET time_zone='MET';
+}
+
+--echo
+--echo drop and create databases
+--connection master_1
+--disable_warnings
+DROP DATABASE IF EXISTS ts_test_local;
+CREATE DATABASE ts_test_local;
+USE ts_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SET @old_log_output = @@global.log_output;
+    SET GLOBAL log_output = 'TABLE,FILE';
+  }
+  DROP DATABASE IF EXISTS ts_test_remote;
+  CREATE DATABASE ts_test_remote;
+  USE ts_test_remote;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLE;
+    echo CHILD2_1_DROP_TABLE_F;
+    echo CHILD2_1_CREATE_TABLE;
+    echo CHILD2_1_CREATE_TABLE_F;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLE;
+  eval $CHILD2_1_DROP_TABLE_F;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLE;
+  eval $CHILD2_1_CREATE_TABLE_F;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tbl_a;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tbl_a (
+  col_a INT UNSIGNED NOT NULL AUTO_INCREMENT,
+  col_dt DATETIME,
+  col_ts TIMESTAMP NOT NULL
+    DEFAULT current_timestamp() ON UPDATE current_timestamp(),
+  PRIMARY KEY(col_a),
+  UNIQUE INDEX i_ts (col_ts)
+) MASTER_1_ENGINE MASTER_1_AUTO_INCREMENT_2_1 MASTER_1_COMMENT_2_1;
+eval CREATE TABLE tbl_a (
+  col_a INT UNSIGNED NOT NULL AUTO_INCREMENT,
+  col_dt DATETIME,
+  col_ts TIMESTAMP NOT NULL
+    DEFAULT current_timestamp() ON UPDATE current_timestamp(),
+  PRIMARY KEY(col_a),
+  UNIQUE INDEX i_ts (col_ts)
+) $MASTER_1_ENGINE $MASTER_1_AUTO_INCREMENT_2_1 $MASTER_1_COMMENT_2_1;
+echo CREATE TABLE tbl_f (
+  col_d DATE,
+  col_t TIME
+) $MASTER_1_ENGINE $MASTER_1_COMMENT_2_1_F;
+eval CREATE TABLE tbl_f (
+  col_d DATE,
+  col_t TIME
+) $MASTER_1_ENGINE $MASTER_1_COMMENT_2_1_F;
+--enable_query_log
+SHOW CREATE TABLE tbl_a;
+SHOW CREATE TABLE tbl_f;
+
+--echo
+--echo Set a different time zone that has DST
+SET time_zone='+01:00';
+
+--echo
+--echo Insert Rows
+--connection master_1
+--echo Min value
+SET @@timestamp=1;
+INSERT INTO tbl_a VALUES (1, now(), now());
+SET @@timestamp=0;
+--echo Ambiguous DST values for MET time zone that result in the
+--echo same UTC timestamp
+INSERT INTO tbl_a VALUES (2, '2018-03-25 02:00:00', '2018-03-25 02:00:00');
+INSERT INTO tbl_a VALUES (3, '2018-03-25 02:30:00', '2018-03-25 02:30:00');
+--echo Ambiguous DST values for MET time zone in the 2:00 am to 3:00 am hour
+--echo that occur twice when transitioning from DST to standard time
+SET @@timestamp=1540686600;
+INSERT INTO tbl_a VALUES (4, now(), now());
+SET @@timestamp=1540690200;
+INSERT INTO tbl_a VALUES (5, now(), now());
+--echo Max value
+SET @@timestamp=2147483647;
+INSERT INTO tbl_a VALUES (6, now(), now());
+SET @@timestamp=0;
+
+--echo
+--echo SELECTs
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT *, unix_timestamp(col_ts) FROM tbl_a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLE;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo DELETEs
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DELETE FROM tbl_a WHERE col_ts='1970-01-01 01:00:01';
+SELECT *, unix_timestamp(col_ts) FROM tbl_a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLE;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SET @@timestamp=1;
+INSERT INTO tbl_a VALUES (1, now(), now());
+SET @@timestamp=0;
+SELECT *, unix_timestamp(col_ts) FROM tbl_a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLE;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo UPDATEs
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+UPDATE tbl_a SET col_ts=col_dt;
+SELECT *, unix_timestamp(col_ts) FROM tbl_a;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLE;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo Lookups
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT *, unix_timestamp(col_ts) FROM tbl_a WHERE col_ts > '2018-01-01';
+SELECT *, unix_timestamp(col_ts) FROM tbl_a WHERE col_ts < '2018-10-28 02:30:00';
+SELECT *, unix_timestamp(col_ts) FROM tbl_a WHERE '2018-10-28 02:30:00' > col_ts;
+SELECT *, unix_timestamp(col_ts) FROM tbl_a WHERE col_ts BETWEEN '2018-10-28 01:30:00' AND '2018-10-28 02:30:00';
+SELECT *, unix_timestamp(col_ts) FROM tbl_a WHERE col_ts >= '2018-10-28 01:30:00' AND col_ts <= '2018-10-28 02:30:00';
+SELECT *, unix_timestamp(col_ts) FROM tbl_a WHERE col_ts > 180325020000;
+SELECT *, unix_timestamp(col_ts) FROM tbl_a WHERE col_ts > 19700101010001;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLE;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo Drop the index on the timestamp column
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  eval $CHILD2_1_DROP_INDEX;
+  eval $CHILD2_1_SHOW_CREATE_TABLE;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+DROP INDEX i_ts ON tbl_a;
+SHOW CREATE TABLE tbl_a;
+
+--echo
+--echo Retry lookups on unindexed timestamp column
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT *, unix_timestamp(col_ts) FROM tbl_a WHERE col_ts > '2018-01-01';
+SELECT *, unix_timestamp(col_ts) FROM tbl_a WHERE col_ts < '2018-10-28 02:30:00';
+SELECT *, unix_timestamp(col_ts) FROM tbl_a WHERE '2018-10-28 02:30:00' > col_ts;
+SELECT *, unix_timestamp(col_ts) FROM tbl_a WHERE col_ts BETWEEN '2018-10-28 01:30:00' AND '2018-10-28 02:30:00';
+SELECT *, unix_timestamp(col_ts) FROM tbl_a WHERE col_ts >= '2018-10-28 01:30:00' AND col_ts <= '2018-10-28 02:30:00';
+SELECT *, unix_timestamp(col_ts) FROM tbl_a WHERE col_ts > 180325020000;
+SELECT *, unix_timestamp(col_ts) FROM tbl_a WHERE col_ts > 19700101010001;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLE;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo Test the TIMESTAMP function
+--connection master_1
+INSERT INTO tbl_f VALUES ('2018-06-24', '01:23:45'),
+                         ('2018-06-24', '01:23:45'),
+                         ('2018-08-01', '12:34:56');
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+SELECT * FROM tbl_f;
+SELECT TIMESTAMP(col_d, col_t) FROM tbl_f;
+SELECT TIMESTAMP('2018-06-25', col_t) FROM tbl_f;
+SELECT TIMESTAMP(col_d, '10:43:21') FROM tbl_f;
+SELECT TIMESTAMP('2018-06-25', '10:43:21') FROM tbl_f;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    eval $CHILD2_1_SELECT_ARGUMENT1;
+  }
+  eval $CHILD2_1_SELECT_TABLE_F;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo Restore Time Zone settings
+--connection master_1
+SET GLOBAL time_zone=DEFAULT;
+SET time_zone=DEFAULT;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  SET GLOBAL time_zone=DEFAULT;
+  SET time_zone=DEFAULT;
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS ts_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS ts_test_remote;
+  if ($USE_GENERAL_LOG)
+  {
+    SET GLOBAL log_output = @old_log_output;
+  }
+}
+--enable_warnings
+--source timestamp_deinit.inc
+--echo
+--echo end of test
diff --git a/storage/spider/mysql-test/spider/t/timestamp_deinit.inc b/storage/spider/mysql-test/spider/t/timestamp_deinit.inc
new file mode 100644
index 00000000..52be67a1
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/timestamp_deinit.inc
@@ -0,0 +1,13 @@
+--let $MASTER_1_COMMENT_2_1= $MASTER_1_COMMENT_2_1_BACKUP
+--let $CHILD2_1_DROP_TABLES= $CHILD2_1_DROP_TABLES_BACKUP
+--let $CHILD2_1_CREATE_TABLES= $CHILD2_1_CREATE_TABLES_BACKUP
+--let $CHILD2_1_SELECT_TABLES= $CHILD2_1_SELECT_TABLES_BACKUP
+--let $OUTPUT_CHILD_GROUP2= $OUTPUT_CHILD_GROUP2_BACKUP
+--let $USE_GENERAL_LOG= $USE_GENERAL_LOG_BACKUP
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
diff --git a/storage/spider/mysql-test/spider/t/timestamp_init.inc b/storage/spider/mysql-test/spider/t/timestamp_init.inc
new file mode 100644
index 00000000..811c34c9
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/timestamp_init.inc
@@ -0,0 +1,62 @@
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source ../t/test_init.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+
+--let $MASTER_1_COMMENT_2_1_BACKUP= $MASTER_1_COMMENT_2_1
+--let $MASTER_1_COMMENT_2_1_F_BACKUP= $MASTER_1_COMMENT_2_1_F
+let $MASTER_1_COMMENT_2_1=
+  COMMENT='database "ts_test_remote", table "tbl_a", srv "s_2_1"';
+let $MASTER_1_COMMENT_2_1_F=
+  COMMENT='database "ts_test_remote", table "tbl_f", srv "s_2_1"';
+let $MASTER_1_AUTO_INCREMENT_2_1=
+  AUTO_INCREMENT=17 DEFAULT CHARSET=utf8mb4;
+let $MASTER_1_AUTO_INCREMENT1=
+  AUTO_INCREMENT=17 DEFAULT CHARSET=utf8mb4;
+let $MASTER_1_AUTO_INCREMENT2=
+  AUTO_INCREMENT=17 DEFAULT CHARSET=utf8mb4;
+let $CHILD2_1_AUTO_INCREMENT=
+  AUTO_INCREMENT=17 DEFAULT CHARSET=utf8mb4;
+--let $CHILD2_1_DROP_TABLE_BACKUP= $CHILD2_1_DROP_TABLE
+--let $CHILD2_1_DROP_TABLE_F_BACKUP= $CHILD2_1_DROP_TABLE_F
+let $CHILD2_1_DROP_TABLE=
+  DROP TABLE IF EXISTS tbl_a;
+let $CHILD2_1_DROP_TABLE_F=
+  DROP TABLE IF EXISTS tbl_f;
+--let $CHILD2_1_CREATE_TABLE_BACKUP= $CHILD2_1_CREATE_TABLE
+--let $CHILD2_1_CREATE_TABLE_F_BACKUP= $CHILD2_1_CREATE_TABLE_F
+let $CHILD2_1_CREATE_TABLE=
+  CREATE TABLE tbl_a (
+    col_a INT UNSIGNED NOT NULL AUTO_INCREMENT,
+    col_dt DATETIME,
+    col_ts TIMESTAMP NOT NULL
+      DEFAULT current_timestamp() ON UPDATE current_timestamp(),
+    PRIMARY KEY(col_a),
+    UNIQUE INDEX i_ts (col_ts)
+  ) $CHILD2_1_ENGINE $CHILD2_1_AUTO_INCREMENT;
+let $CHILD2_1_CREATE_TABLE_F=
+  CREATE TABLE tbl_f (
+    col_d DATE,
+    col_t TIME
+  ) $CHILD2_1_ENGINE;
+--let $CHILD2_1_SELECT_TABLE_BACKUP= $CHILD2_1_SELECT_TABLE
+--let $CHILD2_1_SELECT_TABLE_F_BACKUP= $CHILD2_1_SELECT_TABLE_F
+let $CHILD2_1_SELECT_TABLE=
+  SELECT col_a, col_dt, col_ts, unix_timestamp(col_ts) FROM tbl_a ORDER BY col_a;
+let $CHILD2_1_SELECT_TABLE_F=
+  SELECT col_d, col_t FROM tbl_f;
+let $CHILD2_1_SELECT_ARGUMENT1=
+  SELECT argument FROM mysql.general_log WHERE argument LIKE '%select %';
+let $CHILD2_1_DROP_INDEX=
+  DROP INDEX i_ts ON tbl_a;
+let $CHILD2_1_SHOW_CREATE_TABLE=
+  SHOW CREATE TABLE tbl_a;
+let $CHILD2_1_SHOW_CREATE_TABLE_F=
+  SHOW CREATE TABLE tbl_f;
+--let $OUTPUT_CHILD_GROUP2_BACKUP= $OUTPUT_CHILD_GROUP2
+--let $OUTPUT_CHILD_GROUP2= 1
+--let $USE_GENERAL_LOG_BACKUP= $USE_GENERAL_LOG
+--let $USE_GENERAL_LOG= 1
diff --git a/storage/spider/mysql-test/spider/t/vp_fixes.test b/storage/spider/mysql-test/spider/t/vp_fixes.test
new file mode 100644
index 00000000..90380227
--- /dev/null
+++ b/storage/spider/mysql-test/spider/t/vp_fixes.test
@@ -0,0 +1,335 @@
+# This test tests for VP's bug fixes
+--disable_warnings
+--disable_query_log
+--disable_result_log
+--source test_init.inc
+--enable_result_log
+--enable_query_log
+
+--echo
+--echo drop and create databases
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  CREATE DATABASE auto_test_remote;
+  USE auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+  CREATE DATABASE auto_test_remote2;
+  USE auto_test_remote2;
+}
+--enable_warnings
+
+--echo
+--echo test select 1
+--connection master_1
+SELECT 1;
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  SELECT 1;
+  --connection child2_2
+  SELECT 1;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo create table and insert
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    echo CHILD2_1_DROP_TABLES;
+    echo CHILD2_1_CREATE_TABLES;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES;
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+  }
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS tb_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE2 MASTER_1_CHARSET2;
+eval CREATE TABLE tb_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE2 $MASTER_1_CHARSET2;
+--enable_query_log
+INSERT INTO tb_l (a, b, c) VALUES
+  (1, 'a', '2008-08-01 10:21:39'),
+  (2, 'b', '2000-01-01 00:00:00'),
+  (3, 'e', '2007-06-04 20:03:11'),
+  (4, 'd', '2003-11-30 05:01:03'),
+  (5, 'c', '2001-12-31 23:59:59');
+--disable_warnings
+DROP TABLE IF EXISTS ta_l;
+--enable_warnings
+--disable_query_log
+echo CREATE TABLE ta_l (
+  PRIMARY KEY(a)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT_2_1;
+eval CREATE TABLE ta_l (
+  a INT,
+  b CHAR(1),
+  c DATETIME,
+  PRIMARY KEY(a)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT_2_1;
+--enable_query_log
+INSERT INTO ta_l SELECT a, b, c FROM tb_l;
+
+--echo
+--echo 0.9
+--echo create different primary key table
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_result_log
+  }
+  --disable_query_log
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    echo CHILD2_1_DROP_TABLES5;
+    echo CHILD2_1_CREATE_TABLES5;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES5;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES5;
+  --enable_query_log
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_query_log
+echo CREATE TABLE ta_l_int (
+  a INT DEFAULT 10,
+  b INT AUTO_INCREMENT,
+  c INT DEFAULT 11,
+  PRIMARY KEY(b)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1;
+eval CREATE TABLE ta_l_int (
+  a INT DEFAULT 10,
+  b INT AUTO_INCREMENT,
+  c INT DEFAULT 11,
+  PRIMARY KEY(b)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+--enable_query_log
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+--let $MASTER_1_IS_VP= `SELECT IF('$MASTER_1_ENGINE_TYPE' = 'VP', 1, 0)`
+if ($MASTER_1_IS_VP)
+{
+  --error 14514
+  INSERT INTO ta_l_int (a, b, c) VALUES (2, NULL, 3);
+}
+if (!$MASTER_1_IS_VP)
+{
+  INSERT INTO ta_l_int (a, b, c) VALUES (2, NULL, 3);
+  --disable_query_log
+  --disable_result_log
+  TRUNCATE TABLE ta_l_int;
+  --enable_query_log
+  --enable_result_log
+}
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES5;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo create un-correspond primary key table
+--connection master_1
+--disable_warnings
+DROP TABLE IF EXISTS ta_l_int;
+--enable_warnings
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_result_log
+  }
+  --disable_query_log
+  --connection child2_1
+  if ($OUTPUT_CHILD_GROUP2)
+  {
+    echo CHILD2_1_DROP_TABLES5;
+    echo CHILD2_1_CREATE_TABLES5;
+  }
+  --disable_warnings
+  eval $CHILD2_1_DROP_TABLES5;
+  --enable_warnings
+  eval $CHILD2_1_CREATE_TABLES5;
+  --enable_query_log
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_result_log
+  }
+}
+--connection master_1
+--disable_query_log
+echo CREATE TABLE ta_l_int (
+  a INT DEFAULT 10,
+  b INT DEFAULT 12,
+  c INT DEFAULT 11,
+  PRIMARY KEY(c)
+) MASTER_1_ENGINE MASTER_1_CHARSET MASTER_1_COMMENT4_2_1;
+eval CREATE TABLE ta_l_int (
+  a INT DEFAULT 10,
+  b INT DEFAULT 12,
+  c INT DEFAULT 11,
+  PRIMARY KEY(c)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET $MASTER_1_COMMENT4_2_1;
+--enable_query_log
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    TRUNCATE TABLE mysql.general_log;
+  }
+  eval $CHILD2_1_SELECT_TABLES;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+--connection master_1
+if ($MASTER_1_IS_VP)
+{
+  --error 14514
+  INSERT INTO ta_l_int (a, b, c) VALUES (2, NULL, 3);
+}
+if (!$MASTER_1_IS_VP)
+{
+  INSERT INTO ta_l_int (a, b, c) VALUES (2, NULL, 3);
+  --disable_query_log
+  --disable_result_log
+  TRUNCATE TABLE ta_l_int;
+  --enable_query_log
+  --enable_result_log
+}
+if ($USE_CHILD_GROUP2)
+{
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --disable_query_log
+    --disable_result_log
+  }
+  --connection child2_1
+  if ($USE_GENERAL_LOG)
+  {
+    SELECT argument FROM mysql.general_log WHERE argument LIKE '%insert %';
+  }
+  eval $CHILD2_1_SELECT_TABLES5;
+  if (!$OUTPUT_CHILD_GROUP2)
+  {
+    --enable_query_log
+    --enable_result_log
+  }
+}
+
+--echo
+--echo deinit
+--disable_warnings
+--connection master_1
+DROP DATABASE IF EXISTS auto_test_local;
+if ($USE_CHILD_GROUP2)
+{
+  --connection child2_1
+  DROP DATABASE IF EXISTS auto_test_remote;
+  --connection child2_2
+  DROP DATABASE IF EXISTS auto_test_remote2;
+}
+--disable_query_log
+--disable_result_log
+--source test_deinit.inc
+--enable_result_log
+--enable_query_log
+--enable_warnings
+--echo
+--echo end of test
diff --git a/storage/spider/spd_conn.cc b/storage/spider/spd_conn.cc
new file mode 100644
index 00000000..4b7ece6f
--- /dev/null
+++ b/storage/spider/spd_conn.cc
@@ -0,0 +1,5242 @@
+/* Copyright (C) 2008-2020 Kentoku Shiba
+   Copyright (C) 2019, 2020, MariaDB Corporation.
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+#define MYSQL_SERVER 1
+#include <my_global.h>
+#include "mysql_version.h"
+#include "spd_environ.h"
+#if MYSQL_VERSION_ID < 50500
+#include "mysql_priv.h"
+#include <mysql/plugin.h>
+#else
+#include "sql_priv.h"
+#include "probes_mysql.h"
+#include "sql_class.h"
+#include "sql_partition.h"
+#include "sql_table.h"
+#include "tztime.h"
+#endif
+#include "spd_err.h"
+#include "spd_param.h"
+#include "spd_db_include.h"
+#include "spd_include.h"
+#include "ha_spider.h"
+#include "spd_db_conn.h"
+#include "spd_trx.h"
+#include "spd_conn.h"
+#include "spd_table.h"
+#include "spd_direct_sql.h"
+#include "spd_ping_table.h"
+#include "spd_malloc.h"
+#include "spd_err.h"
+
+#ifdef SPIDER_HAS_NEXT_THREAD_ID
+#define SPIDER_set_next_thread_id(A)
+#else
+extern ulong *spd_db_att_thread_id;
+inline void SPIDER_set_next_thread_id(THD *A)
+{
+  pthread_mutex_lock(&LOCK_thread_count);
+  A->thread_id = (*spd_db_att_thread_id)++;
+  pthread_mutex_unlock(&LOCK_thread_count);
+}
+#endif
+
+extern handlerton *spider_hton_ptr;
+extern SPIDER_DBTON spider_dbton[SPIDER_DBTON_SIZE];
+extern struct charset_info_st *spd_charset_utf8mb3_bin;
+extern LEX_CSTRING spider_unique_id;
+pthread_mutex_t spider_conn_id_mutex;
+pthread_mutex_t spider_ipport_conn_mutex;
+ulonglong spider_conn_id = 1;
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+extern pthread_attr_t spider_pt_attr;
+
+#ifdef HAVE_PSI_INTERFACE
+extern PSI_mutex_key spd_key_mutex_mta_conn;
+extern PSI_mutex_key spd_key_mutex_conn_i;
+extern PSI_mutex_key spd_key_mutex_conn_loop_check;
+extern PSI_cond_key spd_key_cond_conn_i;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+extern PSI_mutex_key spd_key_mutex_bg_conn_chain;
+extern PSI_mutex_key spd_key_mutex_bg_conn_sync;
+extern PSI_mutex_key spd_key_mutex_bg_conn;
+extern PSI_mutex_key spd_key_mutex_bg_job_stack;
+extern PSI_mutex_key spd_key_mutex_bg_mon;
+extern PSI_cond_key spd_key_cond_bg_conn_sync;
+extern PSI_cond_key spd_key_cond_bg_conn;
+extern PSI_cond_key spd_key_cond_bg_sts;
+extern PSI_cond_key spd_key_cond_bg_sts_sync;
+extern PSI_cond_key spd_key_cond_bg_crd;
+extern PSI_cond_key spd_key_cond_bg_crd_sync;
+extern PSI_cond_key spd_key_cond_bg_mon;
+extern PSI_cond_key spd_key_cond_bg_mon_sleep;
+extern PSI_thread_key spd_key_thd_bg;
+extern PSI_thread_key spd_key_thd_bg_sts;
+extern PSI_thread_key spd_key_thd_bg_crd;
+extern PSI_thread_key spd_key_thd_bg_mon;
+#endif
+#endif
+#endif
+
+/* UTC time zone for timestamp columns */
+extern Time_zone *UTC;
+
+extern sql_mode_t full_sql_mode;
+extern sql_mode_t pushdown_sql_mode;
+
+HASH spider_open_connections;
+uint spider_open_connections_id;
+HASH spider_ipport_conns;
+long spider_conn_mutex_id = 0;
+
+const char *spider_open_connections_func_name;
+const char *spider_open_connections_file_name;
+ulong spider_open_connections_line_no;
+pthread_mutex_t spider_conn_mutex;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+HASH spider_hs_r_conn_hash;
+uint spider_hs_r_conn_hash_id;
+const char *spider_hs_r_conn_hash_func_name;
+const char *spider_hs_r_conn_hash_file_name;
+ulong spider_hs_r_conn_hash_line_no;
+pthread_mutex_t spider_hs_r_conn_mutex;
+HASH spider_hs_w_conn_hash;
+uint spider_hs_w_conn_hash_id;
+const char *spider_hs_w_conn_hash_func_name;
+const char *spider_hs_w_conn_hash_file_name;
+ulong spider_hs_w_conn_hash_line_no;
+pthread_mutex_t spider_hs_w_conn_mutex;
+#endif
+
+/* for spider_open_connections and trx_conn_hash */
+uchar *spider_conn_get_key(
+  SPIDER_CONN *conn,
+  size_t *length,
+  my_bool not_used __attribute__ ((unused))
+) {
+  DBUG_ENTER("spider_conn_get_key");
+  *length = conn->conn_key_length;
+  DBUG_PRINT("info",("spider conn_kind=%u", conn->conn_kind));
+#ifndef DBUG_OFF
+  spider_print_keys(conn->conn_key, conn->conn_key_length);
+#endif
+  DBUG_RETURN((uchar*) conn->conn_key);
+}
+
+uchar *spider_ipport_conn_get_key(
+   SPIDER_IP_PORT_CONN *ip_port,
+   size_t *length,
+   my_bool not_used __attribute__ ((unused))
+)
+{
+  DBUG_ENTER("spider_ipport_conn_get_key");
+  *length = ip_port->key_len;
+  DBUG_RETURN((uchar*) ip_port->key);
+}
+
+static uchar *spider_loop_check_full_get_key(
+  SPIDER_CONN_LOOP_CHECK *ptr,
+  size_t *length,
+  my_bool not_used __attribute__ ((unused))
+) {
+  DBUG_ENTER("spider_loop_check_full_get_key");
+  *length = ptr->full_name.length;
+  DBUG_RETURN((uchar*) ptr->full_name.str);
+}
+
+static uchar *spider_loop_check_to_get_key(
+  SPIDER_CONN_LOOP_CHECK *ptr,
+  size_t *length,
+  my_bool not_used __attribute__ ((unused))
+) {
+  DBUG_ENTER("spider_loop_check_to_get_key");
+  *length = ptr->to_name.length;
+  DBUG_RETURN((uchar*) ptr->to_name.str);
+}
+
+int spider_conn_init(
+  SPIDER_CONN *conn
+) {
+  int error_num = HA_ERR_OUT_OF_MEM;
+  DBUG_ENTER("spider_conn_init");
+#if MYSQL_VERSION_ID < 50500
+  if (pthread_mutex_init(&conn->loop_check_mutex, MY_MUTEX_INIT_FAST))
+#else
+  if (mysql_mutex_init(spd_key_mutex_conn_loop_check, &conn->loop_check_mutex,
+    MY_MUTEX_INIT_FAST))
+#endif
+  {
+    goto error_loop_check_mutex_init;
+  }
+  if (
+    my_hash_init(PSI_INSTRUMENT_ME, &conn->loop_checked, spd_charset_utf8mb3_bin, 32, 0, 0,
+                   (my_hash_get_key) spider_loop_check_full_get_key, 0, 0)
+  ) {
+    goto error_loop_checked_hash_init;
+  }
+  spider_alloc_calc_mem_init(conn->loop_checked, 268);
+  spider_alloc_calc_mem(spider_current_trx,
+    conn->loop_checked,
+    conn->loop_checked.array.max_element *
+    conn->loop_checked.array.size_of_element);
+  if (
+    my_hash_init(PSI_INSTRUMENT_ME, &conn->loop_check_queue, spd_charset_utf8mb3_bin, 32, 0, 0,
+                   (my_hash_get_key) spider_loop_check_to_get_key, 0, 0)
+  ) {
+    goto error_loop_check_queue_hash_init;
+  }
+  spider_alloc_calc_mem_init(conn->loop_check_queue, 269);
+  spider_alloc_calc_mem(spider_current_trx,
+    conn->loop_check_queue,
+    conn->loop_check_queue.array.max_element *
+    conn->loop_check_queue.array.size_of_element);
+  DBUG_RETURN(0);
+
+error_loop_check_queue_hash_init:
+  spider_free_mem_calc(spider_current_trx,
+    conn->loop_checked_id,
+    conn->loop_checked.array.max_element *
+    conn->loop_checked.array.size_of_element);
+  my_hash_free(&conn->loop_checked);
+error_loop_checked_hash_init:
+  pthread_mutex_destroy(&conn->loop_check_mutex);
+error_loop_check_mutex_init:
+  DBUG_RETURN(error_num);
+}
+
+void spider_conn_done(
+  SPIDER_CONN *conn
+) {
+  SPIDER_CONN_LOOP_CHECK *lcptr;
+  DBUG_ENTER("spider_conn_done");
+  uint l = 0;
+  while ((lcptr = (SPIDER_CONN_LOOP_CHECK *) my_hash_element(
+    &conn->loop_checked, l)))
+  {
+    spider_free(spider_current_trx, lcptr, MYF(0));
+    ++l;
+  }
+  spider_free_mem_calc(spider_current_trx,
+    conn->loop_check_queue_id,
+    conn->loop_check_queue.array.max_element *
+    conn->loop_check_queue.array.size_of_element);
+  my_hash_free(&conn->loop_check_queue);
+  spider_free_mem_calc(spider_current_trx,
+    conn->loop_checked_id,
+    conn->loop_checked.array.max_element *
+    conn->loop_checked.array.size_of_element);
+  my_hash_free(&conn->loop_checked);
+  pthread_mutex_destroy(&conn->loop_check_mutex);
+  DBUG_VOID_RETURN;
+}
+
+int spider_reset_conn_setted_parameter(
+  SPIDER_CONN *conn,
+  THD *thd
+) {
+  DBUG_ENTER("spider_reset_conn_setted_parameter");
+  conn->autocommit = spider_param_remote_autocommit();
+  conn->sql_log_off = spider_param_remote_sql_log_off();
+  conn->wait_timeout = spider_param_remote_wait_timeout(thd);
+  conn->sql_mode = full_sql_mode + 1;
+  if (thd && spider_param_remote_time_zone())
+  {
+    int tz_length = strlen(spider_param_remote_time_zone());
+    String tz_str(spider_param_remote_time_zone(), tz_length,
+      &my_charset_latin1);
+    conn->time_zone = my_tz_find(thd, &tz_str);
+  } else
+    conn->time_zone = NULL;
+  conn->trx_isolation = spider_param_remote_trx_isolation();
+  DBUG_PRINT("info",("spider conn->trx_isolation=%d", conn->trx_isolation));
+  if (spider_param_remote_access_charset())
+  {
+    if (!(conn->access_charset =
+      get_charset_by_csname(spider_param_remote_access_charset(),
+        MY_CS_PRIMARY, MYF(MY_WME))))
+      DBUG_RETURN(ER_UNKNOWN_CHARACTER_SET);
+  } else
+    conn->access_charset = NULL;
+  char *default_database = spider_param_remote_default_database();
+  if (default_database)
+  {
+    uint default_database_length = strlen(default_database);
+    if (conn->default_database.reserve(default_database_length + 1))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    conn->default_database.q_append(default_database,
+      default_database_length + 1);
+    conn->default_database.length(default_database_length);
+  } else
+    conn->default_database.length(0);
+  DBUG_RETURN(spider_conn_reset_queue_loop_check(conn));
+}
+
+int spider_free_conn_alloc(
+  SPIDER_CONN *conn
+) {
+  DBUG_ENTER("spider_free_conn_alloc");
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  spider_free_conn_thread(conn);
+#endif
+  spider_db_disconnect(conn);
+  if (conn->db_conn)
+  {
+    delete conn->db_conn;
+    conn->db_conn = NULL;
+  }
+  spider_conn_done(conn);
+  DBUG_ASSERT(!conn->mta_conn_mutex_file_pos.file_name);
+  pthread_mutex_destroy(&conn->mta_conn_mutex);
+  conn->default_database.free();
+  DBUG_RETURN(0);
+}
+
+void spider_free_conn_from_trx(
+  SPIDER_TRX *trx,
+  SPIDER_CONN *conn,
+  bool another,
+  bool trx_free,
+  int *roop_count
+) {
+  ha_spider *spider;
+  SPIDER_IP_PORT_CONN *ip_port_conn = conn->ip_port_conn;
+  DBUG_ENTER("spider_free_conn_from_trx");
+  spider_conn_clear_queue(conn);
+  conn->use_for_active_standby = FALSE;
+  conn->error_mode = 1;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (conn->conn_kind == SPIDER_CONN_KIND_MYSQL)
+  {
+#endif
+    if (
+      trx_free ||
+      (
+        (
+          conn->server_lost ||
+          spider_param_conn_recycle_mode(trx->thd) != 2
+        ) &&
+        !conn->opened_handlers
+      )
+    ) {
+      conn->thd = NULL;
+      if (another)
+      {
+        ha_spider *next_spider;
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+        my_hash_delete_with_hash_value(&trx->trx_another_conn_hash,
+          conn->conn_key_hash_value, (uchar*) conn);
+#else
+        my_hash_delete(&trx->trx_another_conn_hash, (uchar*) conn);
+#endif
+        spider = (ha_spider*) conn->another_ha_first;
+        while (spider)
+        {
+          next_spider = spider->next;
+          spider_free_tmp_dbton_handler(spider);
+          spider_free_tmp_dbton_share(spider->share);
+          spider_free_tmp_share_alloc(spider->share);
+          spider_free(spider_current_trx, spider->share, MYF(0));
+          delete spider;
+          spider = next_spider;
+        }
+        conn->another_ha_first = NULL;
+        conn->another_ha_last = NULL;
+      } else {
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+        my_hash_delete_with_hash_value(&trx->trx_conn_hash,
+          conn->conn_key_hash_value, (uchar*) conn);
+#else
+        my_hash_delete(&trx->trx_conn_hash, (uchar*) conn);
+#endif
+      }
+
+      if (
+        !trx_free &&
+        !conn->server_lost &&
+        !conn->queued_connect &&
+        spider_param_conn_recycle_mode(trx->thd) == 1
+      ) {
+        /* conn_recycle_mode == 1 */
+        *conn->conn_key = '0';
+        conn->casual_read_base_conn = NULL;
+        if (
+          conn->quick_target &&
+          spider_db_free_result((ha_spider *) conn->quick_target, FALSE)
+        ) {
+          spider_free_conn(conn);
+        } else {
+          pthread_mutex_lock(&spider_conn_mutex);
+          uint old_elements = spider_open_connections.array.max_element;
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+          if (my_hash_insert_with_hash_value(&spider_open_connections,
+            conn->conn_key_hash_value, (uchar*) conn))
+#else
+          if (my_hash_insert(&spider_open_connections, (uchar*) conn))
+#endif
+          {
+            pthread_mutex_unlock(&spider_conn_mutex);
+            spider_free_conn(conn);
+          } else {
+            if (ip_port_conn)
+            { /* exists */
+              if (ip_port_conn->waiting_count)
+              {
+                pthread_mutex_lock(&ip_port_conn->mutex);
+                pthread_cond_signal(&ip_port_conn->cond);
+                pthread_mutex_unlock(&ip_port_conn->mutex);
+              }
+            }
+            if (spider_open_connections.array.max_element > old_elements)
+            {
+              spider_alloc_calc_mem(spider_current_trx,
+                spider_open_connections,
+                (spider_open_connections.array.max_element - old_elements) *
+                spider_open_connections.array.size_of_element);
+            }
+            pthread_mutex_unlock(&spider_conn_mutex);
+          }
+        }
+      } else {
+        /* conn_recycle_mode == 0 */
+        if (conn->quick_target)
+        {
+          spider_db_free_result((ha_spider *) conn->quick_target, TRUE);
+        }
+        spider_free_conn(conn);
+      }
+    } else if (roop_count)
+      (*roop_count)++;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  } else if (conn->conn_kind == SPIDER_CONN_KIND_HS_READ)
+  {
+    spider_db_hs_request_buf_reset(conn);
+    if (
+      trx_free ||
+      (
+        (
+          conn->server_lost ||
+          spider_param_hs_r_conn_recycle_mode(trx->thd) != 2
+        ) &&
+        !conn->opened_handlers
+      )
+    ) {
+      conn->thd = NULL;
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+      my_hash_delete_with_hash_value(&trx->trx_hs_r_conn_hash,
+        conn->conn_key_hash_value, (uchar*) conn);
+#else
+      my_hash_delete(&trx->trx_hs_r_conn_hash, (uchar*) conn);
+#endif
+
+      DBUG_ASSERT(conn->opened_handlers ==
+        conn->db_conn->get_opened_handler_count());
+      if (conn->db_conn->get_opened_handler_count())
+      {
+        conn->db_conn->reset_opened_handler();
+      }
+
+      if (
+        !trx_free &&
+        !conn->server_lost &&
+        !conn->queued_connect &&
+        spider_param_hs_r_conn_recycle_mode(trx->thd) == 1
+      ) {
+        /* conn_recycle_mode == 1 */
+        *conn->conn_key = '0';
+        pthread_mutex_lock(&spider_hs_r_conn_mutex);
+        uint old_elements = spider_hs_r_conn_hash.array.max_element;
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+        if (my_hash_insert_with_hash_value(&spider_hs_r_conn_hash,
+          conn->conn_key_hash_value, (uchar*) conn))
+#else
+        if (my_hash_insert(&spider_hs_r_conn_hash, (uchar*) conn))
+#endif
+        {
+          pthread_mutex_unlock(&spider_hs_r_conn_mutex);
+          spider_free_conn(conn);
+        } else {
+          if (spider_hs_r_conn_hash.array.max_element > old_elements)
+          {
+            spider_alloc_calc_mem(spider_current_trx,
+              spider_hs_r_conn_hash,
+              (spider_hs_r_conn_hash.array.max_element - old_elements) *
+              spider_hs_r_conn_hash.array.size_of_element);
+          }
+          pthread_mutex_unlock(&spider_hs_r_conn_mutex);
+        }
+      } else {
+        /* conn_recycle_mode == 0 */
+        spider_free_conn(conn);
+      }
+    } else if (roop_count)
+      (*roop_count)++;
+  } else {
+    spider_db_hs_request_buf_reset(conn);
+    if (
+      trx_free ||
+      (
+        (
+          conn->server_lost ||
+          spider_param_hs_w_conn_recycle_mode(trx->thd) != 2
+        ) &&
+        !conn->opened_handlers
+      )
+    ) {
+      conn->thd = NULL;
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+      my_hash_delete_with_hash_value(&trx->trx_hs_w_conn_hash,
+        conn->conn_key_hash_value, (uchar*) conn);
+#else
+      my_hash_delete(&trx->trx_hs_w_conn_hash, (uchar*) conn);
+#endif
+
+      DBUG_ASSERT(conn->opened_handlers ==
+        conn->db_conn->get_opened_handler_count());
+      if (conn->db_conn->get_opened_handler_count())
+      {
+        conn->db_conn->reset_opened_handler();
+      }
+
+      if (
+        !trx_free &&
+        !conn->server_lost &&
+        !conn->queued_connect &&
+        spider_param_hs_w_conn_recycle_mode(trx->thd) == 1
+      ) {
+        /* conn_recycle_mode == 1 */
+        *conn->conn_key = '0';
+        pthread_mutex_lock(&spider_hs_w_conn_mutex);
+        uint old_elements = spider_hs_w_conn_hash.array.max_element;
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+        if (my_hash_insert_with_hash_value(&spider_hs_w_conn_hash,
+          conn->conn_key_hash_value, (uchar*) conn))
+#else
+        if (my_hash_insert(&spider_hs_w_conn_hash, (uchar*) conn))
+#endif
+        {
+          pthread_mutex_unlock(&spider_hs_w_conn_mutex);
+          spider_free_conn(conn);
+        } else {
+          if (spider_hs_w_conn_hash.array.max_element > old_elements)
+          {
+            spider_alloc_calc_mem(spider_current_trx,
+              spider_hs_w_conn_hash,
+              (spider_hs_w_conn_hash.array.max_element - old_elements) *
+              spider_hs_w_conn_hash.array.size_of_element);
+          }
+          pthread_mutex_unlock(&spider_hs_w_conn_mutex);
+        }
+      } else {
+        /* conn_recycle_mode == 0 */
+        spider_free_conn(conn);
+      }
+    } else if (roop_count)
+      (*roop_count)++;
+  }
+#endif
+  DBUG_VOID_RETURN;
+}
+
+SPIDER_CONN *spider_create_conn(
+  SPIDER_SHARE *share,
+  ha_spider *spider,
+  int link_idx,
+  int base_link_idx,
+  uint conn_kind,
+  int *error_num
+) {
+  int *need_mon;
+  SPIDER_CONN *conn;
+  SPIDER_IP_PORT_CONN *ip_port_conn;
+  char *tmp_name, *tmp_host, *tmp_username, *tmp_password, *tmp_socket;
+  char *tmp_wrapper, *tmp_db, *tmp_ssl_ca, *tmp_ssl_capath, *tmp_ssl_cert;
+  char *tmp_ssl_cipher, *tmp_ssl_key, *tmp_default_file, *tmp_default_group;
+  char *tmp_dsn;
+  DBUG_ENTER("spider_create_conn");
+
+  if (unlikely(!UTC))
+  {
+    /* UTC time zone for timestamp columns */
+    String tz_00_name(STRING_WITH_LEN("+00:00"), &my_charset_bin);
+    UTC = my_tz_find(current_thd, &tz_00_name);
+  }
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (conn_kind == SPIDER_CONN_KIND_MYSQL)
+  {
+#endif
+    bool tables_on_different_db_are_joinable;
+    if (share->sql_dbton_ids[link_idx] != SPIDER_DBTON_SIZE)
+    {
+      tables_on_different_db_are_joinable =
+        spider_dbton[share->sql_dbton_ids[link_idx]].db_util->
+          tables_on_different_db_are_joinable();
+    } else {
+      tables_on_different_db_are_joinable = TRUE;
+    }
+    if (!(conn = (SPIDER_CONN *)
+      spider_bulk_malloc(spider_current_trx, 18, MYF(MY_WME | MY_ZEROFILL),
+        &conn, (uint) (sizeof(*conn)),
+        &tmp_name, (uint) (share->conn_keys_lengths[link_idx] + 1),
+        &tmp_host, (uint) (share->tgt_hosts_lengths[link_idx] + 1),
+        &tmp_username,
+          (uint) (share->tgt_usernames_lengths[link_idx] + 1),
+        &tmp_password,
+          (uint) (share->tgt_passwords_lengths[link_idx] + 1),
+        &tmp_socket, (uint) (share->tgt_sockets_lengths[link_idx] + 1),
+        &tmp_wrapper,
+          (uint) (share->tgt_wrappers_lengths[link_idx] + 1),
+        &tmp_db, (uint) (tables_on_different_db_are_joinable ?
+          0 : share->tgt_dbs_lengths[link_idx] + 1),
+        &tmp_ssl_ca, (uint) (share->tgt_ssl_cas_lengths[link_idx] + 1),
+        &tmp_ssl_capath,
+          (uint) (share->tgt_ssl_capaths_lengths[link_idx] + 1),
+        &tmp_ssl_cert,
+          (uint) (share->tgt_ssl_certs_lengths[link_idx] + 1),
+        &tmp_ssl_cipher,
+          (uint) (share->tgt_ssl_ciphers_lengths[link_idx] + 1),
+        &tmp_ssl_key,
+          (uint) (share->tgt_ssl_keys_lengths[link_idx] + 1),
+        &tmp_default_file,
+          (uint) (share->tgt_default_files_lengths[link_idx] + 1),
+        &tmp_default_group,
+          (uint) (share->tgt_default_groups_lengths[link_idx] + 1),
+        &tmp_dsn,
+          (uint) (share->tgt_dsns_lengths[link_idx] + 1),
+        &need_mon, (uint) (sizeof(int)),
+        NullS))
+    ) {
+      *error_num = HA_ERR_OUT_OF_MEM;
+      goto error_alloc_conn;
+    }
+
+    conn->default_database.init_calc_mem(75);
+    conn->conn_key_length = share->conn_keys_lengths[link_idx];
+    conn->conn_key = tmp_name;
+    memcpy(conn->conn_key, share->conn_keys[link_idx],
+      share->conn_keys_lengths[link_idx]);
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+    conn->conn_key_hash_value = share->conn_keys_hash_value[link_idx];
+#endif
+    conn->tgt_host_length = share->tgt_hosts_lengths[link_idx];
+    conn->tgt_host = tmp_host;
+    memcpy(conn->tgt_host, share->tgt_hosts[link_idx],
+      share->tgt_hosts_lengths[link_idx]);
+    conn->tgt_username_length = share->tgt_usernames_lengths[link_idx];
+    conn->tgt_username = tmp_username;
+    memcpy(conn->tgt_username, share->tgt_usernames[link_idx],
+      share->tgt_usernames_lengths[link_idx]);
+    conn->tgt_password_length = share->tgt_passwords_lengths[link_idx];
+    conn->tgt_password = tmp_password;
+    memcpy(conn->tgt_password, share->tgt_passwords[link_idx],
+      share->tgt_passwords_lengths[link_idx]);
+    conn->tgt_socket_length = share->tgt_sockets_lengths[link_idx];
+    conn->tgt_socket = tmp_socket;
+    memcpy(conn->tgt_socket, share->tgt_sockets[link_idx],
+      share->tgt_sockets_lengths[link_idx]);
+    conn->tgt_wrapper_length = share->tgt_wrappers_lengths[link_idx];
+    conn->tgt_wrapper = tmp_wrapper;
+    memcpy(conn->tgt_wrapper, share->tgt_wrappers[link_idx],
+      share->tgt_wrappers_lengths[link_idx]);
+    if (!tables_on_different_db_are_joinable)
+    {
+      conn->tgt_db_length = share->tgt_dbs_lengths[link_idx];
+      conn->tgt_db = tmp_db;
+      memcpy(conn->tgt_db, share->tgt_dbs[link_idx],
+        share->tgt_dbs_lengths[link_idx]);
+    }
+    conn->tgt_ssl_ca_length = share->tgt_ssl_cas_lengths[link_idx];
+    if (conn->tgt_ssl_ca_length)
+    {
+      conn->tgt_ssl_ca = tmp_ssl_ca;
+      memcpy(conn->tgt_ssl_ca, share->tgt_ssl_cas[link_idx],
+        share->tgt_ssl_cas_lengths[link_idx]);
+    } else
+      conn->tgt_ssl_ca = NULL;
+    conn->tgt_ssl_capath_length = share->tgt_ssl_capaths_lengths[link_idx];
+    if (conn->tgt_ssl_capath_length)
+    {
+      conn->tgt_ssl_capath = tmp_ssl_capath;
+      memcpy(conn->tgt_ssl_capath, share->tgt_ssl_capaths[link_idx],
+        share->tgt_ssl_capaths_lengths[link_idx]);
+    } else
+      conn->tgt_ssl_capath = NULL;
+    conn->tgt_ssl_cert_length = share->tgt_ssl_certs_lengths[link_idx];
+    if (conn->tgt_ssl_cert_length)
+    {
+      conn->tgt_ssl_cert = tmp_ssl_cert;
+      memcpy(conn->tgt_ssl_cert, share->tgt_ssl_certs[link_idx],
+        share->tgt_ssl_certs_lengths[link_idx]);
+    } else
+      conn->tgt_ssl_cert = NULL;
+    conn->tgt_ssl_cipher_length = share->tgt_ssl_ciphers_lengths[link_idx];
+    if (conn->tgt_ssl_cipher_length)
+    {
+      conn->tgt_ssl_cipher = tmp_ssl_cipher;
+      memcpy(conn->tgt_ssl_cipher, share->tgt_ssl_ciphers[link_idx],
+        share->tgt_ssl_ciphers_lengths[link_idx]);
+    } else
+      conn->tgt_ssl_cipher = NULL;
+    conn->tgt_ssl_key_length = share->tgt_ssl_keys_lengths[link_idx];
+    if (conn->tgt_ssl_key_length)
+    {
+      conn->tgt_ssl_key = tmp_ssl_key;
+      memcpy(conn->tgt_ssl_key, share->tgt_ssl_keys[link_idx],
+        share->tgt_ssl_keys_lengths[link_idx]);
+    } else
+      conn->tgt_ssl_key = NULL;
+    conn->tgt_default_file_length = share->tgt_default_files_lengths[link_idx];
+    if (conn->tgt_default_file_length)
+    {
+      conn->tgt_default_file = tmp_default_file;
+      memcpy(conn->tgt_default_file, share->tgt_default_files[link_idx],
+        share->tgt_default_files_lengths[link_idx]);
+    } else
+      conn->tgt_default_file = NULL;
+    conn->tgt_default_group_length =
+      share->tgt_default_groups_lengths[link_idx];
+    if (conn->tgt_default_group_length)
+    {
+      conn->tgt_default_group = tmp_default_group;
+      memcpy(conn->tgt_default_group, share->tgt_default_groups[link_idx],
+        share->tgt_default_groups_lengths[link_idx]);
+    } else
+      conn->tgt_default_group = NULL;
+    conn->tgt_dsn_length =
+      share->tgt_dsns_lengths[link_idx];
+    if (conn->tgt_dsn_length)
+    {
+      conn->tgt_dsn = tmp_dsn;
+      memcpy(conn->tgt_dsn, share->tgt_dsns[link_idx],
+        share->tgt_dsns_lengths[link_idx]);
+    } else
+      conn->tgt_dsn = NULL;
+    conn->tgt_port = share->tgt_ports[link_idx];
+    conn->tgt_ssl_vsc = share->tgt_ssl_vscs[link_idx];
+    conn->dbton_id = share->sql_dbton_ids[link_idx];
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  } else if (conn_kind == SPIDER_CONN_KIND_HS_READ) {
+    if (!(conn = (SPIDER_CONN *)
+      spider_bulk_malloc(spider_current_trx, 19, MYF(MY_WME | MY_ZEROFILL),
+        &conn, (uint) (sizeof(*conn)),
+        &tmp_name, (uint) (share->hs_read_conn_keys_lengths[link_idx] + 1),
+        &tmp_host, (uint) (share->tgt_hosts_lengths[link_idx] + 1),
+        &tmp_socket, (uint) (share->hs_read_socks_lengths[link_idx] + 1),
+        &tmp_wrapper,
+          (uint) (share->tgt_wrappers_lengths[link_idx] + 1),
+        &need_mon, (uint) (sizeof(int)),
+        NullS))
+    ) {
+      *error_num = HA_ERR_OUT_OF_MEM;
+      goto error_alloc_conn;
+    }
+
+    conn->default_database.init_calc_mem(76);
+    conn->conn_key_length = share->hs_read_conn_keys_lengths[link_idx];
+    conn->conn_key = tmp_name;
+    memcpy(conn->conn_key, share->hs_read_conn_keys[link_idx],
+      share->hs_read_conn_keys_lengths[link_idx]);
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+    conn->conn_key_hash_value = share->hs_read_conn_keys_hash_value[link_idx];
+#endif
+    conn->tgt_host_length = share->tgt_hosts_lengths[link_idx];
+    conn->tgt_host = tmp_host;
+    memcpy(conn->tgt_host, share->tgt_hosts[link_idx],
+      share->tgt_hosts_lengths[link_idx]);
+    conn->hs_sock_length = share->hs_read_socks_lengths[link_idx];
+    if (conn->hs_sock_length)
+    {
+      conn->hs_sock = tmp_socket;
+      memcpy(conn->hs_sock, share->hs_read_socks[link_idx],
+        share->hs_read_socks_lengths[link_idx]);
+    } else
+      conn->hs_sock = NULL;
+    conn->tgt_wrapper_length = share->tgt_wrappers_lengths[link_idx];
+    conn->tgt_wrapper = tmp_wrapper;
+    memcpy(conn->tgt_wrapper, share->tgt_wrappers[link_idx],
+      share->tgt_wrappers_lengths[link_idx]);
+    conn->hs_port = share->hs_read_ports[link_idx];
+    conn->dbton_id = share->hs_dbton_ids[link_idx];
+  } else {
+    if (!(conn = (SPIDER_CONN *)
+      spider_bulk_malloc(spider_current_trx, 20, MYF(MY_WME | MY_ZEROFILL),
+        &conn, (uint) (sizeof(*conn)),
+        &tmp_name, (uint) (share->hs_write_conn_keys_lengths[link_idx] + 1),
+        &tmp_host, (uint) (share->tgt_hosts_lengths[link_idx] + 1),
+        &tmp_socket, (uint) (share->hs_write_socks_lengths[link_idx] + 1),
+        &tmp_wrapper,
+          (uint) (share->tgt_wrappers_lengths[link_idx] + 1),
+        &need_mon, (uint) (sizeof(int)),
+        NullS))
+    ) {
+      *error_num = HA_ERR_OUT_OF_MEM;
+      goto error_alloc_conn;
+    }
+
+    conn->default_database.init_calc_mem(77);
+    conn->conn_key_length = share->hs_write_conn_keys_lengths[link_idx];
+    conn->conn_key = tmp_name;
+    memcpy(conn->conn_key, share->hs_write_conn_keys[link_idx],
+      share->hs_write_conn_keys_lengths[link_idx]);
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+    conn->conn_key_hash_value = share->hs_write_conn_keys_hash_value[link_idx];
+#endif
+    conn->tgt_host_length = share->tgt_hosts_lengths[link_idx];
+    conn->tgt_host = tmp_host;
+    memcpy(conn->tgt_host, share->tgt_hosts[link_idx],
+      share->tgt_hosts_lengths[link_idx]);
+    conn->hs_sock_length = share->hs_write_socks_lengths[link_idx];
+    if (conn->hs_sock_length)
+    {
+      conn->hs_sock = tmp_socket;
+      memcpy(conn->hs_sock, share->hs_write_socks[link_idx],
+        share->hs_write_socks_lengths[link_idx]);
+    } else
+      conn->hs_sock = NULL;
+    conn->tgt_wrapper_length = share->tgt_wrappers_lengths[link_idx];
+    conn->tgt_wrapper = tmp_wrapper;
+    memcpy(conn->tgt_wrapper, share->tgt_wrappers[link_idx],
+      share->tgt_wrappers_lengths[link_idx]);
+    conn->hs_port = share->hs_write_ports[link_idx];
+    conn->dbton_id = share->hs_dbton_ids[link_idx];
+  }
+#endif
+  if (conn->dbton_id == SPIDER_DBTON_SIZE)
+  {
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    if (conn->conn_kind == SPIDER_CONN_KIND_MYSQL)
+    {
+#endif
+      my_printf_error(
+        ER_SPIDER_SQL_WRAPPER_IS_INVALID_NUM,
+        ER_SPIDER_SQL_WRAPPER_IS_INVALID_STR,
+        MYF(0), conn->tgt_wrapper);
+      *error_num = ER_SPIDER_SQL_WRAPPER_IS_INVALID_NUM;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    } else {
+      my_printf_error(
+        ER_SPIDER_NOSQL_WRAPPER_IS_INVALID_NUM,
+        ER_SPIDER_NOSQL_WRAPPER_IS_INVALID_STR,
+        MYF(0), conn->tgt_wrapper);
+      *error_num = ER_SPIDER_NOSQL_WRAPPER_IS_INVALID_NUM;
+    }
+#endif
+    goto error_invalid_wrapper;
+  }
+  if (!(conn->db_conn = spider_dbton[conn->dbton_id].create_db_conn(conn)))
+  {
+    *error_num = HA_ERR_OUT_OF_MEM;
+    goto error_db_conn_create;
+  }
+  if ((*error_num = conn->db_conn->init()))
+  {
+    goto error_db_conn_init;
+  }
+  conn->join_trx = 0;
+  conn->thd = NULL;
+  conn->table_lock = 0;
+  conn->semi_trx_isolation = -2;
+  conn->semi_trx_isolation_chk = FALSE;
+  conn->semi_trx_chk = FALSE;
+  conn->link_idx = base_link_idx;
+  conn->conn_kind = conn_kind;
+  conn->conn_need_mon = need_mon;
+  if (spider)
+    conn->need_mon = &spider->need_mons[base_link_idx];
+  else
+    conn->need_mon = need_mon;
+
+#if MYSQL_VERSION_ID < 50500
+  if (pthread_mutex_init(&conn->mta_conn_mutex, MY_MUTEX_INIT_FAST))
+#else
+  if (mysql_mutex_init(spd_key_mutex_mta_conn, &conn->mta_conn_mutex,
+    MY_MUTEX_INIT_FAST))
+#endif
+  {
+    *error_num = HA_ERR_OUT_OF_MEM;
+    goto error_mta_conn_mutex_init;
+  }
+
+  if (unlikely((*error_num = spider_conn_init(conn))))
+  {
+    goto error_conn_init;
+  }
+
+  spider_conn_queue_connect(share, conn, link_idx);
+  conn->ping_time = (time_t) time((time_t*) 0);
+  conn->connect_error_time = conn->ping_time;
+  pthread_mutex_lock(&spider_conn_id_mutex);
+  conn->conn_id = spider_conn_id;
+  ++spider_conn_id;
+  pthread_mutex_unlock(&spider_conn_id_mutex);
+
+  pthread_mutex_lock(&spider_ipport_conn_mutex);
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  if ((ip_port_conn = (SPIDER_IP_PORT_CONN*) my_hash_search_using_hash_value(
+    &spider_ipport_conns, conn->conn_key_hash_value,
+    (uchar*)conn->conn_key, conn->conn_key_length)))
+#else
+  if ((ip_port_conn = (SPIDER_IP_PORT_CONN*) my_hash_search(
+    &spider_ipport_conns, (uchar*)conn->conn_key, conn->conn_key_length)))
+#endif
+  { /* exists, +1 */
+    pthread_mutex_unlock(&spider_ipport_conn_mutex);
+    pthread_mutex_lock(&ip_port_conn->mutex);
+    if (spider_param_max_connections())
+    { /* enable conncetion pool */
+      if (ip_port_conn->ip_port_count >= spider_param_max_connections())
+      { /* bigger than the max num of connections, free conn and return NULL */
+        pthread_mutex_unlock(&ip_port_conn->mutex);
+        *error_num = ER_SPIDER_CON_COUNT_ERROR;
+        goto error_too_many_ipport_count;
+      }
+    }
+    ip_port_conn->ip_port_count++;
+    pthread_mutex_unlock(&ip_port_conn->mutex);
+  }
+  else
+  {// do not exist
+    ip_port_conn = spider_create_ipport_conn(conn);
+    if (!ip_port_conn) {
+      /* failed, always do not effect 'create conn' */
+      pthread_mutex_unlock(&spider_ipport_conn_mutex);
+      DBUG_RETURN(conn);
+    }
+    if (my_hash_insert(&spider_ipport_conns, (uchar *)ip_port_conn)) {
+      /* insert failed, always do not effect 'create conn' */
+      pthread_mutex_unlock(&spider_ipport_conn_mutex);
+      DBUG_RETURN(conn);
+    }
+    pthread_mutex_unlock(&spider_ipport_conn_mutex);
+  }
+  conn->ip_port_conn = ip_port_conn;
+
+  DBUG_RETURN(conn);
+
+error_too_many_ipport_count:
+  spider_conn_done(conn);
+error_conn_init:
+  pthread_mutex_destroy(&conn->mta_conn_mutex);
+error_mta_conn_mutex_init:
+error_db_conn_init:
+  delete conn->db_conn;
+error_db_conn_create:
+error_invalid_wrapper:
+  spider_free(spider_current_trx, conn, MYF(0));
+error_alloc_conn:
+  DBUG_RETURN(NULL);
+}
+
+SPIDER_CONN *spider_get_conn(
+  SPIDER_SHARE *share,
+  int link_idx,
+  char *conn_key,
+  SPIDER_TRX *trx,
+  ha_spider *spider,
+  bool another,
+  bool thd_chg,
+  uint conn_kind,
+  int *error_num
+) {
+  SPIDER_CONN *conn = NULL;
+  int base_link_idx = link_idx;
+  DBUG_ENTER("spider_get_conn");
+  DBUG_PRINT("info",("spider conn_kind=%u", conn_kind));
+
+  if (spider)
+    link_idx = spider->conn_link_idx[base_link_idx];
+  DBUG_PRINT("info",("spider link_idx=%u", link_idx));
+  DBUG_PRINT("info",("spider base_link_idx=%u", base_link_idx));
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (conn_kind == SPIDER_CONN_KIND_MYSQL)
+  {
+#endif
+#ifndef DBUG_OFF
+    spider_print_keys(conn_key, share->conn_keys_lengths[link_idx]);
+#endif
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  } else if (conn_kind == SPIDER_CONN_KIND_HS_READ)
+  {
+    conn_key = share->hs_read_conn_keys[link_idx];
+#ifndef DBUG_OFF
+    spider_print_keys(conn_key, share->hs_read_conn_keys_lengths[link_idx]);
+#endif
+  } else {
+    conn_key = share->hs_write_conn_keys[link_idx];
+#ifndef DBUG_OFF
+    spider_print_keys(conn_key, share->hs_write_conn_keys_lengths[link_idx]);
+#endif
+  }
+#endif
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  if (
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    (conn_kind == SPIDER_CONN_KIND_MYSQL &&
+      (
+#endif
+        (another &&
+          !(conn = (SPIDER_CONN*) my_hash_search_using_hash_value(
+            &trx->trx_another_conn_hash,
+            share->conn_keys_hash_value[link_idx],
+            (uchar*) conn_key, share->conn_keys_lengths[link_idx]))) ||
+        (!another &&
+          !(conn = (SPIDER_CONN*) my_hash_search_using_hash_value(
+            &trx->trx_conn_hash,
+            share->conn_keys_hash_value[link_idx],
+            (uchar*) conn_key, share->conn_keys_lengths[link_idx])))
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      )
+    ) ||
+    (conn_kind == SPIDER_CONN_KIND_HS_READ &&
+      !(conn = (SPIDER_CONN*) my_hash_search_using_hash_value(
+        &trx->trx_hs_r_conn_hash,
+        share->hs_read_conn_keys_hash_value[link_idx],
+        (uchar*) conn_key, share->hs_read_conn_keys_lengths[link_idx]))
+    ) ||
+    (conn_kind == SPIDER_CONN_KIND_HS_WRITE &&
+      !(conn = (SPIDER_CONN*) my_hash_search_using_hash_value(
+        &trx->trx_hs_w_conn_hash,
+        share->hs_write_conn_keys_hash_value[link_idx],
+        (uchar*) conn_key, share->hs_write_conn_keys_lengths[link_idx]))
+    )
+#endif
+  )
+#else
+  if (
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    (conn_kind == SPIDER_CONN_KIND_MYSQL &&
+      (
+#endif
+        (another &&
+          !(conn = (SPIDER_CONN*) my_hash_search(&trx->trx_another_conn_hash,
+            (uchar*) conn_key, share->conn_keys_lengths[link_idx]))) ||
+        (!another &&
+          !(conn = (SPIDER_CONN*) my_hash_search(&trx->trx_conn_hash,
+            (uchar*) conn_key, share->conn_keys_lengths[link_idx])))
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      )
+    ) ||
+    (conn_kind == SPIDER_CONN_KIND_HS_READ &&
+      !(conn = (SPIDER_CONN*) my_hash_search(&trx->trx_hs_r_conn_hash,
+        (uchar*) conn_key, share->hs_read_conn_keys_lengths[link_idx]))
+    ) ||
+    (conn_kind == SPIDER_CONN_KIND_HS_WRITE &&
+      !(conn = (SPIDER_CONN*) my_hash_search(&trx->trx_hs_w_conn_hash,
+        (uchar*) conn_key, share->hs_write_conn_keys_lengths[link_idx]))
+    )
+#endif
+  )
+#endif
+  {
+    if (
+      !trx->thd ||
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      (conn_kind == SPIDER_CONN_KIND_MYSQL &&
+#endif
+        (
+          (spider_param_conn_recycle_mode(trx->thd) & 1) ||
+          spider_param_conn_recycle_strict(trx->thd)
+        )
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      ) ||
+      (conn_kind == SPIDER_CONN_KIND_HS_READ &&
+        (
+          (spider_param_hs_r_conn_recycle_mode(trx->thd) & 1) ||
+          spider_param_hs_r_conn_recycle_strict(trx->thd)
+        )
+      ) ||
+      (conn_kind == SPIDER_CONN_KIND_HS_WRITE &&
+        (
+          (spider_param_hs_w_conn_recycle_mode(trx->thd) & 1) ||
+          spider_param_hs_w_conn_recycle_strict(trx->thd)
+        )
+      )
+#endif
+    ) {
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      if (conn_kind == SPIDER_CONN_KIND_MYSQL)
+      {
+#endif
+        pthread_mutex_lock(&spider_conn_mutex);
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+        if (!(conn = (SPIDER_CONN*) my_hash_search_using_hash_value(
+          &spider_open_connections, share->conn_keys_hash_value[link_idx],
+          (uchar*) share->conn_keys[link_idx],
+          share->conn_keys_lengths[link_idx])))
+#else
+        if (!(conn = (SPIDER_CONN*) my_hash_search(&spider_open_connections,
+          (uchar*) share->conn_keys[link_idx],
+          share->conn_keys_lengths[link_idx])))
+#endif
+        {
+          pthread_mutex_unlock(&spider_conn_mutex);
+          if (spider_param_max_connections())
+          { /* enable connection pool */
+            conn = spider_get_conn_from_idle_connection(share, link_idx, conn_key, spider, conn_kind, base_link_idx, error_num);
+            /* failed get conn, goto error */
+            if (!conn)
+              goto error;
+
+          }
+          else
+          { /* did not enable conncetion pool , create_conn */
+            DBUG_PRINT("info",("spider create new conn"));
+            if (!(conn = spider_create_conn(share, spider, link_idx,
+              base_link_idx, conn_kind, error_num)))
+              goto error;
+            *conn->conn_key = *conn_key;
+            if (spider)
+            {
+              spider->conns[base_link_idx] = conn;
+              if (spider_bit_is_set(spider->conn_can_fo, base_link_idx))
+                conn->use_for_active_standby = TRUE;
+            }
+          }
+        } else {
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+          my_hash_delete_with_hash_value(&spider_open_connections,
+            conn->conn_key_hash_value, (uchar*) conn);
+#else
+          my_hash_delete(&spider_open_connections, (uchar*) conn);
+#endif
+          pthread_mutex_unlock(&spider_conn_mutex);
+          DBUG_PRINT("info",("spider get global conn"));
+          if (spider)
+          {
+            spider->conns[base_link_idx] = conn;
+            if (spider_bit_is_set(spider->conn_can_fo, base_link_idx))
+              conn->use_for_active_standby = TRUE;
+          }
+        }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      } else if (conn_kind == SPIDER_CONN_KIND_HS_READ)
+      {
+        pthread_mutex_lock(&spider_hs_r_conn_mutex);
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+        if (!(conn = (SPIDER_CONN*) my_hash_search_using_hash_value(
+          &spider_hs_r_conn_hash,
+          share->hs_read_conn_keys_hash_value[link_idx],
+          (uchar*) share->hs_read_conn_keys[link_idx],
+          share->hs_read_conn_keys_lengths[link_idx])))
+#else
+        if (!(conn = (SPIDER_CONN*) my_hash_search(&spider_hs_r_conn_hash,
+          (uchar*) share->hs_read_conn_keys[link_idx],
+          share->hs_read_conn_keys_lengths[link_idx])))
+#endif
+        {
+          pthread_mutex_unlock(&spider_hs_r_conn_mutex);
+          DBUG_PRINT("info",("spider create new hs r conn"));
+          if (!(conn = spider_create_conn(share, spider, link_idx,
+            base_link_idx, conn_kind, error_num)))
+            goto error;
+          *conn->conn_key = *conn_key;
+          if (spider)
+          {
+            spider->hs_r_conns[base_link_idx] = conn;
+            if (spider_bit_is_set(spider->conn_can_fo, base_link_idx))
+              conn->use_for_active_standby = TRUE;
+          }
+        } else {
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+          my_hash_delete_with_hash_value(&spider_hs_r_conn_hash,
+            conn->conn_key_hash_value, (uchar*) conn);
+#else
+          my_hash_delete(&spider_hs_r_conn_hash, (uchar*) conn);
+#endif
+          pthread_mutex_unlock(&spider_hs_r_conn_mutex);
+          DBUG_PRINT("info",("spider get global hs r conn"));
+          if (spider)
+          {
+            spider->hs_r_conns[base_link_idx] = conn;
+            if (spider_bit_is_set(spider->conn_can_fo, base_link_idx))
+              conn->use_for_active_standby = TRUE;
+          }
+        }
+      } else {
+        pthread_mutex_lock(&spider_hs_w_conn_mutex);
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+        if (!(conn = (SPIDER_CONN*) my_hash_search_using_hash_value(
+          &spider_hs_w_conn_hash,
+          share->hs_write_conn_keys_hash_value[link_idx],
+          (uchar*) share->hs_write_conn_keys[link_idx],
+          share->hs_write_conn_keys_lengths[link_idx])))
+#else
+        if (!(conn = (SPIDER_CONN*) my_hash_search(&spider_hs_w_conn_hash,
+          (uchar*) share->hs_write_conn_keys[link_idx],
+          share->hs_write_conn_keys_lengths[link_idx])))
+#endif
+        {
+          pthread_mutex_unlock(&spider_hs_w_conn_mutex);
+          DBUG_PRINT("info",("spider create new hs w conn"));
+          if (!(conn = spider_create_conn(share, spider, link_idx,
+            base_link_idx, conn_kind, error_num)))
+            goto error;
+          *conn->conn_key = *conn_key;
+          if (spider)
+          {
+            spider->hs_w_conns[base_link_idx] = conn;
+            if (spider_bit_is_set(spider->conn_can_fo, base_link_idx))
+              conn->use_for_active_standby = TRUE;
+          }
+        } else {
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+          my_hash_delete_with_hash_value(&spider_hs_w_conn_hash,
+            conn->conn_key_hash_value, (uchar*) conn);
+#else
+          my_hash_delete(&spider_hs_w_conn_hash, (uchar*) conn);
+#endif
+          pthread_mutex_unlock(&spider_hs_w_conn_mutex);
+          DBUG_PRINT("info",("spider get global hs w conn"));
+          if (spider)
+          {
+            spider->hs_w_conns[base_link_idx] = conn;
+            if (spider_bit_is_set(spider->conn_can_fo, base_link_idx))
+              conn->use_for_active_standby = TRUE;
+          }
+        }
+      }
+#endif
+    } else {
+      DBUG_PRINT("info",("spider create new conn"));
+      /* conn_recycle_strict = 0 and conn_recycle_mode = 0 or 2 */
+      if (!(conn = spider_create_conn(share, spider, link_idx, base_link_idx,
+        conn_kind, error_num)))
+        goto error;
+      *conn->conn_key = *conn_key;
+      if (spider)
+      {
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+        if (conn_kind == SPIDER_CONN_KIND_MYSQL)
+        {
+#endif
+          spider->conns[base_link_idx] = conn;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+        } else if (conn_kind == SPIDER_CONN_KIND_HS_READ)
+        {
+          spider->hs_r_conns[base_link_idx] = conn;
+        } else {
+          spider->hs_w_conns[base_link_idx] = conn;
+        }
+#endif
+        if (spider_bit_is_set(spider->conn_can_fo, base_link_idx))
+          conn->use_for_active_standby = TRUE;
+      }
+    }
+    conn->thd = trx->thd;
+    conn->priority = share->priority;
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    if (conn_kind == SPIDER_CONN_KIND_MYSQL)
+    {
+#endif
+      if (another)
+      {
+        uint old_elements = trx->trx_another_conn_hash.array.max_element;
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+        if (my_hash_insert_with_hash_value(&trx->trx_another_conn_hash,
+          share->conn_keys_hash_value[link_idx],
+          (uchar*) conn))
+#else
+        if (my_hash_insert(&trx->trx_another_conn_hash, (uchar*) conn))
+#endif
+        {
+          spider_free_conn(conn);
+          *error_num = HA_ERR_OUT_OF_MEM;
+          goto error;
+        }
+        if (trx->trx_another_conn_hash.array.max_element > old_elements)
+        {
+          spider_alloc_calc_mem(spider_current_trx,
+            trx->trx_another_conn_hash,
+            (trx->trx_another_conn_hash.array.max_element - old_elements) *
+            trx->trx_another_conn_hash.array.size_of_element);
+        }
+      } else {
+        uint old_elements = trx->trx_conn_hash.array.max_element;
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+        if (my_hash_insert_with_hash_value(&trx->trx_conn_hash,
+          share->conn_keys_hash_value[link_idx],
+          (uchar*) conn))
+#else
+        if (my_hash_insert(&trx->trx_conn_hash, (uchar*) conn))
+#endif
+        {
+          spider_free_conn(conn);
+          *error_num = HA_ERR_OUT_OF_MEM;
+          goto error;
+        }
+        if (trx->trx_conn_hash.array.max_element > old_elements)
+        {
+          spider_alloc_calc_mem(spider_current_trx,
+            trx->trx_conn_hash,
+            (trx->trx_conn_hash.array.max_element - old_elements) *
+            trx->trx_conn_hash.array.size_of_element);
+        }
+      }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    } else if (conn_kind == SPIDER_CONN_KIND_HS_READ)
+    {
+      uint old_elements = trx->trx_hs_r_conn_hash.array.max_element;
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+      if (my_hash_insert_with_hash_value(&trx->trx_hs_r_conn_hash,
+        share->hs_read_conn_keys_hash_value[link_idx],
+        (uchar*) conn))
+#else
+      if (my_hash_insert(&trx->trx_hs_r_conn_hash, (uchar*) conn))
+#endif
+      {
+        spider_free_conn(conn);
+        *error_num = HA_ERR_OUT_OF_MEM;
+        goto error;
+      }
+      if (trx->trx_hs_r_conn_hash.array.max_element > old_elements)
+      {
+        spider_alloc_calc_mem(spider_current_trx,
+          trx->trx_hs_r_conn_hash,
+          (trx->trx_hs_r_conn_hash.array.max_element - old_elements) *
+          trx->trx_hs_r_conn_hash.array.size_of_element);
+      }
+    } else {
+      uint old_elements = trx->trx_hs_w_conn_hash.array.max_element;
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+      if (my_hash_insert_with_hash_value(&trx->trx_hs_w_conn_hash,
+        share->hs_write_conn_keys_hash_value[link_idx],
+        (uchar*) conn))
+#else
+      if (my_hash_insert(&trx->trx_hs_w_conn_hash, (uchar*) conn))
+#endif
+      {
+        spider_free_conn(conn);
+        *error_num = HA_ERR_OUT_OF_MEM;
+        goto error;
+      }
+      if (trx->trx_hs_w_conn_hash.array.max_element > old_elements)
+      {
+        spider_alloc_calc_mem(spider_current_trx,
+          trx->trx_hs_w_conn_hash,
+          (trx->trx_hs_w_conn_hash.array.max_element - old_elements) *
+          trx->trx_hs_w_conn_hash.array.size_of_element);
+      }
+    }
+#endif
+  } else if (spider)
+  {
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    if (conn_kind == SPIDER_CONN_KIND_MYSQL)
+    {
+#endif
+      spider->conns[base_link_idx] = conn;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    } else if (conn_kind == SPIDER_CONN_KIND_HS_READ)
+    {
+      spider->hs_r_conns[base_link_idx] = conn;
+    } else {
+      spider->hs_w_conns[base_link_idx] = conn;
+    }
+#endif
+    if (spider_bit_is_set(spider->conn_can_fo, base_link_idx))
+      conn->use_for_active_standby = TRUE;
+  }
+  conn->link_idx = base_link_idx;
+
+  if (conn->queued_connect)
+    spider_conn_queue_connect_rewrite(share, conn, link_idx);
+
+  if (conn->queued_ping)
+  {
+    if (spider)
+      spider_conn_queue_ping_rewrite(spider, conn, base_link_idx);
+    else
+      conn->queued_ping = FALSE;
+  }
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (conn_kind == SPIDER_CONN_KIND_MYSQL)
+  {
+#endif
+    if (unlikely(spider && spider->wide_handler->top_share &&
+      (*error_num = spider_conn_queue_loop_check(
+        conn, spider, base_link_idx))))
+    {
+      goto error;
+    }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  }
+#endif
+
+  DBUG_PRINT("info",("spider conn=%p", conn));
+  DBUG_RETURN(conn);
+
+error:
+  DBUG_RETURN(NULL);
+}
+
+int spider_free_conn(
+  SPIDER_CONN *conn
+) {
+  DBUG_ENTER("spider_free_conn");
+  DBUG_PRINT("info", ("spider conn=%p", conn));
+  SPIDER_IP_PORT_CONN* ip_port_conn = conn->ip_port_conn;
+  if (ip_port_conn)
+  { /* free conn, ip_port_count-- */
+    pthread_mutex_lock(&ip_port_conn->mutex);
+    if (ip_port_conn->ip_port_count > 0)
+      ip_port_conn->ip_port_count--;
+    pthread_mutex_unlock(&ip_port_conn->mutex);
+  }
+  spider_free_conn_alloc(conn);
+  spider_free(spider_current_trx, conn, MYF(0));
+  DBUG_RETURN(0);
+}
+
+int spider_check_and_get_casual_read_conn(
+  THD *thd,
+  ha_spider *spider,
+  int link_idx
+) {
+  int error_num;
+  DBUG_ENTER("spider_check_and_get_casual_read_conn");
+  if (spider->result_list.casual_read[link_idx])
+  {
+    SPIDER_CONN *conn = spider->conns[link_idx];
+    if (conn->casual_read_query_id != thd->query_id)
+    {
+      conn->casual_read_query_id = thd->query_id;
+      conn->casual_read_current_id = 2;
+    }
+    if (spider->result_list.casual_read[link_idx] == 1)
+    {
+      spider->result_list.casual_read[link_idx] = conn->casual_read_current_id;
+      ++conn->casual_read_current_id;
+      if (conn->casual_read_current_id > 63)
+      {
+        conn->casual_read_current_id = 2;
+      }
+    }
+    char first_byte_bak = *spider->conn_keys[link_idx];
+    *spider->conn_keys[link_idx] =
+      '0' + spider->result_list.casual_read[link_idx];
+    if (
+      !(spider->conns[link_idx] =
+        spider_get_conn(spider->share, link_idx,
+          spider->conn_keys[link_idx], spider->wide_handler->trx,
+          spider, FALSE, TRUE, SPIDER_CONN_KIND_MYSQL,
+          &error_num))
+    ) {
+      *spider->conn_keys[link_idx] = first_byte_bak;
+      DBUG_RETURN(error_num);
+    }
+    *spider->conn_keys[link_idx] = first_byte_bak;
+    spider->conns[link_idx]->casual_read_base_conn = conn;
+    conn = spider->conns[link_idx];
+    spider_check_and_set_autocommit(thd, conn, NULL);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_check_and_init_casual_read(
+  THD *thd,
+  ha_spider *spider,
+  int link_idx
+) {
+  int error_num;
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  SPIDER_SHARE *share = spider->share;
+  DBUG_ENTER("spider_check_and_init_casual_read");
+  if (
+    spider_param_sync_autocommit(thd) &&
+    (!thd_test_options(thd, OPTION_NOT_AUTOCOMMIT | OPTION_BEGIN)) &&
+    (
+      result_list->direct_order_limit
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+      || result_list->direct_aggregate
+#endif
+    )
+  ) {
+    if (!result_list->casual_read[link_idx])
+    {
+      result_list->casual_read[link_idx] =
+        spider_param_casual_read(thd, share->casual_read);
+    }
+    if ((error_num = spider_check_and_get_casual_read_conn(thd, spider,
+      link_idx)))
+    {
+      DBUG_RETURN(error_num);
+    }
+    SPIDER_CONN *conn = spider->conns[link_idx];
+    if (
+      conn->casual_read_base_conn &&
+      (error_num = spider_create_conn_thread(conn))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+void spider_conn_queue_connect(
+  SPIDER_SHARE *share,
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  DBUG_ENTER("spider_conn_queue_connect");
+  DBUG_PRINT("info", ("spider conn=%p", conn));
+  conn->queued_connect = TRUE;
+/*
+  conn->queued_connect_share = share;
+  conn->queued_connect_link_idx = link_idx;
+*/
+  DBUG_VOID_RETURN;
+}
+
+void spider_conn_queue_connect_rewrite(
+  SPIDER_SHARE *share,
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  DBUG_ENTER("spider_conn_queue_connect_rewrite");
+  DBUG_PRINT("info", ("spider conn=%p", conn));
+  conn->queued_connect_share = share;
+  conn->queued_connect_link_idx = link_idx;
+  DBUG_VOID_RETURN;
+}
+
+void spider_conn_queue_ping(
+  ha_spider *spider,
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  DBUG_ENTER("spider_conn_queue_ping");
+  DBUG_PRINT("info", ("spider conn=%p", conn));
+  conn->queued_ping = TRUE;
+  conn->queued_ping_spider = spider;
+  conn->queued_ping_link_idx = link_idx;
+  DBUG_VOID_RETURN;
+}
+
+void spider_conn_queue_ping_rewrite(
+  ha_spider *spider,
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  DBUG_ENTER("spider_conn_queue_ping_rewrite");
+  DBUG_PRINT("info", ("spider conn=%p", conn));
+  conn->queued_ping_spider = spider;
+  conn->queued_ping_link_idx = link_idx;
+  DBUG_VOID_RETURN;
+}
+
+void spider_conn_queue_trx_isolation(
+  SPIDER_CONN *conn,
+  int trx_isolation
+) {
+  DBUG_ENTER("spider_conn_queue_trx_isolation");
+  DBUG_PRINT("info", ("spider conn=%p", conn));
+  conn->queued_trx_isolation = TRUE;
+  conn->queued_trx_isolation_val = trx_isolation;
+  DBUG_VOID_RETURN;
+}
+
+void spider_conn_queue_semi_trx_isolation(
+  SPIDER_CONN *conn,
+  int trx_isolation
+) {
+  DBUG_ENTER("spider_conn_queue_semi_trx_isolation");
+  DBUG_PRINT("info", ("spider conn=%p", conn));
+  conn->queued_semi_trx_isolation = TRUE;
+  conn->queued_semi_trx_isolation_val = trx_isolation;
+  DBUG_VOID_RETURN;
+}
+
+void spider_conn_queue_autocommit(
+  SPIDER_CONN *conn,
+  bool autocommit
+) {
+  DBUG_ENTER("spider_conn_queue_autocommit");
+  DBUG_PRINT("info", ("spider conn=%p", conn));
+  conn->queued_autocommit = TRUE;
+  conn->queued_autocommit_val = autocommit;
+  DBUG_VOID_RETURN;
+}
+
+void spider_conn_queue_sql_log_off(
+  SPIDER_CONN *conn,
+  bool sql_log_off
+) {
+  DBUG_ENTER("spider_conn_queue_sql_log_off");
+  DBUG_PRINT("info", ("spider conn=%p", conn));
+  conn->queued_sql_log_off = TRUE;
+  conn->queued_sql_log_off_val = sql_log_off;
+  DBUG_VOID_RETURN;
+}
+
+void spider_conn_queue_wait_timeout(
+  SPIDER_CONN *conn,
+  int wait_timeout
+) {
+  DBUG_ENTER("spider_conn_queue_wait_timeout");
+  DBUG_PRINT("info", ("spider conn=%p", conn));
+  if (wait_timeout > 0)
+  {
+    conn->queued_wait_timeout = TRUE;
+    conn->queued_wait_timeout_val = wait_timeout;
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_conn_queue_sql_mode(
+  SPIDER_CONN *conn,
+  sql_mode_t sql_mode
+) {
+  DBUG_ENTER("spider_conn_queue_sql_mode");
+  DBUG_PRINT("info", ("spider conn=%p", conn));
+  DBUG_ASSERT(!(sql_mode & ~full_sql_mode));
+  conn->queued_sql_mode = TRUE;
+  conn->queued_sql_mode_val = (sql_mode & pushdown_sql_mode);
+  DBUG_VOID_RETURN;
+}
+
+void spider_conn_queue_time_zone(
+  SPIDER_CONN *conn,
+  Time_zone *time_zone
+) {
+  DBUG_ENTER("spider_conn_queue_time_zone");
+  DBUG_PRINT("info", ("spider conn=%p", conn));
+  conn->queued_time_zone = TRUE;
+  conn->queued_time_zone_val = time_zone;
+  DBUG_VOID_RETURN;
+}
+
+void spider_conn_queue_UTC_time_zone(
+  SPIDER_CONN *conn
+) {
+  DBUG_ENTER("spider_conn_queue_UTC_time_zone");
+  DBUG_PRINT("info", ("spider conn=%p", conn));
+  spider_conn_queue_time_zone(conn, UTC);
+  DBUG_VOID_RETURN;
+}
+
+int spider_conn_queue_and_merge_loop_check(
+  SPIDER_CONN *conn,
+  SPIDER_CONN_LOOP_CHECK *lcptr
+) {
+  int error_num = HA_ERR_OUT_OF_MEM;
+  char *tmp_name, *from_name, *cur_name, *to_name, *full_name, *from_value,
+    *merged_value;
+  SPIDER_CONN_LOOP_CHECK *lcqptr, *lcrptr;
+  DBUG_ENTER("spider_conn_queue_and_merge_loop_check");
+  DBUG_PRINT("info", ("spider conn=%p", conn));
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  if (unlikely(!(lcqptr = (SPIDER_CONN_LOOP_CHECK *)
+    my_hash_search_using_hash_value(&conn->loop_check_queue,
+    lcptr->hash_value_to,
+    (uchar *) lcptr->to_name.str, lcptr->to_name.length))))
+#else
+  if (unlikely(!(lcqptr = (SPIDER_CONN_LOOP_CHECK *) my_hash_search(
+    &conn->loop_check_queue,
+    (uchar *) lcptr->to_name.str, lcptr->to_name.length))))
+#endif
+  {
+    DBUG_PRINT("info", ("spider create merged_value and insert"));
+    lcptr->merged_value.length = spider_unique_id.length +
+      lcptr->cur_name.length + lcptr->from_value.length + 1;
+    tmp_name = (char *) lcptr->merged_value.str;
+    memcpy(tmp_name, spider_unique_id.str, spider_unique_id.length);
+    tmp_name += spider_unique_id.length;
+    memcpy(tmp_name, lcptr->cur_name.str, lcptr->cur_name.length);
+    tmp_name += lcptr->cur_name.length;
+    *tmp_name = '-';
+    ++tmp_name;
+    memcpy(tmp_name, lcptr->from_value.str, lcptr->from_value.length + 1);
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+    if (unlikely(my_hash_insert_with_hash_value(&conn->loop_check_queue,
+      lcptr->hash_value_to, (uchar *) lcptr)))
+#else
+    if (unlikely(my_hash_insert(&conn->loop_check_queue, (uchar *) lcptr)))
+#endif
+    {
+      goto error_hash_insert_queue;
+    }
+    lcptr->flag |= SPIDER_LOP_CHK_QUEUED;
+  } else {
+    DBUG_PRINT("info", ("spider append merged_value and replace"));
+    if (unlikely(!spider_bulk_malloc(spider_current_trx, 271, MYF(MY_WME),
+      &lcrptr, (uint) (sizeof(SPIDER_CONN_LOOP_CHECK)),
+      &from_name, (uint) (lcqptr->from_name.length + 1),
+      &cur_name, (uint) (lcqptr->cur_name.length + 1),
+      &to_name, (uint) (lcqptr->to_name.length + 1),
+      &full_name, (uint) (lcqptr->full_name.length + 1),
+      &from_value, (uint) (lcqptr->from_value.length + 1),
+      &merged_value, (uint) (lcqptr->merged_value.length +
+        spider_unique_id.length + lcptr->cur_name.length +
+        lcptr->from_value.length + 2),
+      NullS)
+    )) {
+      goto error_alloc_loop_check_replace;
+    }
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+    lcrptr->hash_value_to = lcqptr->hash_value_to;
+    lcrptr->hash_value_full = lcqptr->hash_value_full;
+#endif
+    lcrptr->from_name.str = from_name;
+    lcrptr->from_name.length = lcqptr->from_name.length;
+    memcpy(from_name, lcqptr->from_name.str, lcqptr->from_name.length + 1);
+    lcrptr->cur_name.str = cur_name;
+    lcrptr->cur_name.length = lcqptr->cur_name.length;
+    memcpy(cur_name, lcqptr->cur_name.str, lcqptr->cur_name.length + 1);
+    lcrptr->to_name.str = to_name;
+    lcrptr->to_name.length = lcqptr->to_name.length;
+    memcpy(to_name, lcqptr->to_name.str, lcqptr->to_name.length + 1);
+    lcrptr->full_name.str = full_name;
+    lcrptr->full_name.length = lcqptr->full_name.length;
+    memcpy(full_name, lcqptr->full_name.str, lcqptr->full_name.length + 1);
+    lcrptr->from_value.str = from_value;
+    lcrptr->from_value.length = lcqptr->from_value.length;
+    memcpy(from_value, lcqptr->from_value.str, lcqptr->from_value.length + 1);
+    lcrptr->merged_value.str = merged_value;
+    lcrptr->merged_value.length = lcqptr->merged_value.length;
+    memcpy(merged_value,
+      lcqptr->merged_value.str, lcqptr->merged_value.length);
+    merged_value += lcqptr->merged_value.length;
+    memcpy(merged_value, spider_unique_id.str, spider_unique_id.length);
+    merged_value += spider_unique_id.length;
+    memcpy(merged_value, lcptr->cur_name.str, lcptr->cur_name.length);
+    merged_value += lcptr->cur_name.length;
+    *merged_value = '-';
+    ++merged_value;
+    memcpy(merged_value, lcptr->from_value.str, lcptr->from_value.length + 1);
+
+    DBUG_PRINT("info", ("spider free lcqptr"));
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+    my_hash_delete_with_hash_value(&conn->loop_checked,
+      lcqptr->hash_value_full, (uchar *) lcqptr);
+    my_hash_delete_with_hash_value(&conn->loop_check_queue,
+      lcqptr->hash_value_to, (uchar *) lcqptr);
+#else
+    my_hash_delete(&conn->loop_checked, (uchar*) lcqptr);
+    my_hash_delete(&conn->loop_check_queue, (uchar*) lcqptr);
+#endif
+    spider_free(spider_current_trx, lcqptr, MYF(0));
+
+    lcptr = lcrptr;
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+    if (unlikely(my_hash_insert_with_hash_value(&conn->loop_checked,
+      lcptr->hash_value_full, (uchar *) lcptr)))
+#else
+    if (unlikely(my_hash_insert(&conn->loop_checked, (uchar *) lcptr)))
+#endif
+    {
+      goto error_hash_insert;
+    }
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+    if (unlikely(my_hash_insert_with_hash_value(&conn->loop_check_queue,
+      lcptr->hash_value_to, (uchar *) lcptr)))
+#else
+    if (unlikely(my_hash_insert(&conn->loop_check_queue, (uchar *) lcptr)))
+#endif
+    {
+      goto error_hash_insert_queue;
+    }
+    lcptr->flag = SPIDER_LOP_CHK_MERAGED;
+    lcptr->next = NULL;
+    if (!conn->loop_check_meraged_first)
+    {
+      conn->loop_check_meraged_first = lcptr;
+      conn->loop_check_meraged_last = lcptr;
+    } else {
+      conn->loop_check_meraged_last->next = lcptr;
+      conn->loop_check_meraged_last = lcptr;
+    }
+  }
+  DBUG_RETURN(0);
+
+error_alloc_loop_check_replace:
+error_hash_insert_queue:
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+  my_hash_delete_with_hash_value(&conn->loop_checked,
+    lcptr->hash_value_full, (uchar *) lcptr);
+#else
+  my_hash_delete(&conn->loop_checked, (uchar*) lcptr);
+#endif
+error_hash_insert:
+  spider_free(spider_current_trx, lcptr, MYF(0));
+  pthread_mutex_unlock(&conn->loop_check_mutex);
+  DBUG_RETURN(error_num);
+}
+
+int spider_conn_reset_queue_loop_check(
+  SPIDER_CONN *conn
+) {
+  int error_num;
+  SPIDER_CONN_LOOP_CHECK *lcptr;
+  DBUG_ENTER("spider_conn_reset_queue_loop_check");
+  uint l = 0;
+  pthread_mutex_lock(&conn->loop_check_mutex);
+  while ((lcptr = (SPIDER_CONN_LOOP_CHECK *) my_hash_element(
+    &conn->loop_checked, l)))
+  {
+    if (!lcptr->flag)
+    {
+      DBUG_PRINT("info", ("spider free lcptr"));
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+      my_hash_delete_with_hash_value(&conn->loop_checked,
+        lcptr->hash_value_full, (uchar *) lcptr);
+#else
+      my_hash_delete(&conn->loop_checked, (uchar*) lcptr);
+#endif
+      spider_free(spider_current_trx, lcptr, MYF(0));
+    }
+    ++l;
+  }
+
+  lcptr = conn->loop_check_ignored_first;
+  while (lcptr)
+  {
+    lcptr->flag = 0;
+    if ((error_num = spider_conn_queue_and_merge_loop_check(conn, lcptr)))
+    {
+      goto error_queue_and_merge;
+    }
+    lcptr = lcptr->next;
+  }
+  conn->loop_check_meraged_first = NULL;
+  pthread_mutex_unlock(&conn->loop_check_mutex);
+  DBUG_RETURN(0);
+
+error_queue_and_merge:
+  lcptr = lcptr->next;
+  while (lcptr)
+  {
+    lcptr->flag = 0;
+    lcptr = lcptr->next;
+  }
+  conn->loop_check_meraged_first = NULL;
+  pthread_mutex_unlock(&conn->loop_check_mutex);
+  DBUG_RETURN(error_num);
+}
+
+int spider_conn_queue_loop_check(
+  SPIDER_CONN *conn,
+  ha_spider *spider,
+  int link_idx
+) {
+  int error_num = HA_ERR_OUT_OF_MEM;
+  uint conn_link_idx = spider->conn_link_idx[link_idx], buf_sz;
+  char path[FN_REFLEN + 1];
+  char *tmp_name, *from_name, *cur_name, *to_name, *full_name, *from_value,
+    *merged_value;
+  user_var_entry *loop_check;
+  char *loop_check_buf;
+  THD *thd = spider->wide_handler->trx->thd;
+  TABLE_SHARE *top_share = spider->wide_handler->top_share;
+  SPIDER_SHARE *share = spider->share;
+  SPIDER_CONN_LOOP_CHECK *lcptr;
+  LEX_CSTRING lex_str, from_str, to_str;
+  DBUG_ENTER("spider_conn_queue_loop_check");
+  DBUG_PRINT("info", ("spider conn=%p", conn));
+  lex_str.length = top_share->path.length + SPIDER_SQL_LOP_CHK_PRM_PRF_LEN;
+  buf_sz = lex_str.length + 2;
+  loop_check_buf = (char *) my_alloca(buf_sz);
+  if (unlikely(!loop_check_buf))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  lex_str.str = loop_check_buf;
+  memcpy(loop_check_buf,
+    SPIDER_SQL_LOP_CHK_PRM_PRF_STR, SPIDER_SQL_LOP_CHK_PRM_PRF_LEN);
+  memcpy(loop_check_buf + SPIDER_SQL_LOP_CHK_PRM_PRF_LEN,
+    top_share->path.str, top_share->path.length);
+  loop_check_buf[lex_str.length] = '\0';
+  DBUG_PRINT("info", ("spider param name=%s", lex_str.str));
+  loop_check = get_variable(&thd->user_vars, &lex_str, FALSE);
+  if (!loop_check || loop_check->type != STRING_RESULT)
+  {
+    DBUG_PRINT("info", ("spider client is not Spider"));
+    lex_str.str = "";
+    lex_str.length = 0;
+    from_str.str = "";
+    from_str.length = 0;
+  } else {
+    lex_str.str = loop_check->value;
+    lex_str.length = loop_check->length;
+    DBUG_PRINT("info", ("spider from_str=%s", lex_str.str));
+    if (unlikely(!(tmp_name = strchr(loop_check->value, '-'))))
+    {
+      DBUG_PRINT("info", ("spider invalid value for loop checking 1"));
+      from_str.str = "";
+      from_str.length = 0;
+    }
+    else if (unlikely(!(tmp_name = strchr(tmp_name + 1, '-'))))
+    {
+      DBUG_PRINT("info", ("spider invalid value for loop checking 2"));
+      from_str.str = "";
+      from_str.length = 0;
+    }
+    else if (unlikely(!(tmp_name = strchr(tmp_name + 1, '-'))))
+    {
+      DBUG_PRINT("info", ("spider invalid value for loop checking 3"));
+      from_str.str = "";
+      from_str.length = 0;
+    }
+    else if (unlikely(!(tmp_name = strchr(tmp_name + 1, '-'))))
+    {
+      DBUG_PRINT("info", ("spider invalid value for loop checking 4"));
+      from_str.str = "";
+      from_str.length = 0;
+    }
+    else
+    {
+      from_str.str = lex_str.str;
+      from_str.length = tmp_name - lex_str.str + 1;
+    }
+  }
+  my_afree(loop_check_buf);
+
+  to_str.length = build_table_filename(path, FN_REFLEN,
+    share->tgt_dbs[conn_link_idx] ? share->tgt_dbs[conn_link_idx] : "",
+    share->tgt_table_names[conn_link_idx], "", 0);
+  to_str.str = path;
+  DBUG_PRINT("info", ("spider to=%s", to_str.str));
+  buf_sz = from_str.length + top_share->path.length + to_str.length + 3;
+  loop_check_buf = (char *) my_alloca(buf_sz);
+  if (unlikely(!loop_check_buf))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  DBUG_PRINT("info", ("spider top_share->path=%s", top_share->path.str));
+  memcpy(loop_check_buf, from_str.str, from_str.length);
+  tmp_name = loop_check_buf + from_str.length;
+  *tmp_name = '-';
+  ++tmp_name;
+  memcpy(tmp_name, top_share->path.str, top_share->path.length);
+  tmp_name += top_share->path.length;
+  *tmp_name = '-';
+  ++tmp_name;
+  memcpy(tmp_name, to_str.str, to_str.length);
+  tmp_name += to_str.length;
+  *tmp_name = '\0';
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  my_hash_value_type hash_value = my_calc_hash(&conn->loop_checked,
+    (uchar *) loop_check_buf, buf_sz - 1);
+#endif
+  pthread_mutex_lock(&conn->loop_check_mutex);
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  lcptr = (SPIDER_CONN_LOOP_CHECK *)
+    my_hash_search_using_hash_value(&conn->loop_checked, hash_value,
+    (uchar *) loop_check_buf, buf_sz - 1);
+#else
+  lcptr = (SPIDER_CONN_LOOP_CHECK *) my_hash_search(
+    &conn->loop_checked, (uchar *) loop_check_buf, buf_sz - 1);
+#endif
+  if (unlikely(
+    !lcptr ||
+    (
+      !lcptr->flag &&
+      (
+        lcptr->from_value.length != lex_str.length ||
+        memcmp(lcptr->from_value.str, lex_str.str, lex_str.length)
+      )
+    )
+  ))
+  {
+    if (unlikely(lcptr))
+    {
+      DBUG_PRINT("info", ("spider free lcptr"));
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+      my_hash_delete_with_hash_value(&conn->loop_checked,
+        lcptr->hash_value_full, (uchar *) lcptr);
+#else
+      my_hash_delete(&conn->loop_checked, (uchar*) lcptr);
+#endif
+      spider_free(spider_current_trx, lcptr, MYF(0));
+    }
+    DBUG_PRINT("info", ("spider alloc_lcptr"));
+    if (unlikely(!spider_bulk_malloc(spider_current_trx, 272, MYF(MY_WME),
+      &lcptr, (uint) (sizeof(SPIDER_CONN_LOOP_CHECK)),
+      &from_name, (uint) (from_str.length + 1),
+      &cur_name, (uint) (top_share->path.length + 1),
+      &to_name, (uint) (to_str.length + 1),
+      &full_name, (uint) (buf_sz),
+      &from_value, (uint) (lex_str.length + 1),
+      &merged_value, (uint) (spider_unique_id.length + top_share->path.length +
+        lex_str.length + 2),
+      NullS)
+    )) {
+      my_afree(loop_check_buf);
+      goto error_alloc_loop_check;
+    }
+    lcptr->flag = 0;
+    lcptr->from_name.str = from_name;
+    lcptr->from_name.length = from_str.length;
+    memcpy(from_name, from_str.str, from_str.length + 1);
+    lcptr->cur_name.str = cur_name;
+    lcptr->cur_name.length = top_share->path.length;
+    memcpy(cur_name, top_share->path.str, top_share->path.length + 1);
+    lcptr->to_name.str = to_name;
+    lcptr->to_name.length = to_str.length;
+    memcpy(to_name, to_str.str, to_str.length + 1);
+    lcptr->full_name.str = full_name;
+    lcptr->full_name.length = buf_sz - 1;
+    memcpy(full_name, loop_check_buf, buf_sz);
+    lcptr->from_value.str = from_value;
+    lcptr->from_value.length = lex_str.length;
+    memcpy(from_value, lex_str.str, lex_str.length + 1);
+    lcptr->merged_value.str = merged_value;
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+    lcptr->hash_value_to = my_calc_hash(&conn->loop_checked,
+      (uchar *) to_str.str, to_str.length);
+    lcptr->hash_value_full = hash_value;
+#endif
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+    if (unlikely(my_hash_insert_with_hash_value(&conn->loop_checked,
+      lcptr->hash_value_full, (uchar *) lcptr)))
+#else
+    if (unlikely(my_hash_insert(&conn->loop_checked, (uchar *) lcptr)))
+#endif
+    {
+      my_afree(loop_check_buf);
+      goto error_hash_insert;
+    }
+  } else {
+    if (!lcptr->flag)
+    {
+      DBUG_PRINT("info", ("spider add to ignored list"));
+      lcptr->flag |= SPIDER_LOP_CHK_IGNORED;
+      lcptr->next = NULL;
+      if (!conn->loop_check_ignored_first)
+      {
+        conn->loop_check_ignored_first = lcptr;
+        conn->loop_check_ignored_last = lcptr;
+      } else {
+        conn->loop_check_ignored_last->next = lcptr;
+        conn->loop_check_ignored_last = lcptr;
+      }
+    }
+    pthread_mutex_unlock(&conn->loop_check_mutex);
+    my_afree(loop_check_buf);
+    DBUG_PRINT("info", ("spider be sent or queued already"));
+    DBUG_RETURN(0);
+  }
+  my_afree(loop_check_buf);
+
+  if ((error_num = spider_conn_queue_and_merge_loop_check(conn, lcptr)))
+  {
+    goto error_queue_and_merge;
+  }
+  pthread_mutex_unlock(&conn->loop_check_mutex);
+  DBUG_RETURN(0);
+
+error_hash_insert:
+  spider_free(spider_current_trx, lcptr, MYF(0));
+error_queue_and_merge:
+  pthread_mutex_unlock(&conn->loop_check_mutex);
+error_alloc_loop_check:
+  DBUG_RETURN(error_num);
+}
+
+void spider_conn_queue_start_transaction(
+  SPIDER_CONN *conn
+) {
+  DBUG_ENTER("spider_conn_queue_start_transaction");
+  DBUG_PRINT("info", ("spider conn=%p", conn));
+  DBUG_ASSERT(!conn->trx_start);
+  conn->queued_trx_start = TRUE;
+  conn->trx_start = TRUE;
+  DBUG_VOID_RETURN;
+}
+
+void spider_conn_queue_xa_start(
+  SPIDER_CONN *conn,
+  XID *xid
+) {
+  DBUG_ENTER("spider_conn_queue_xa_start");
+  DBUG_PRINT("info", ("spider conn=%p", conn));
+  conn->queued_xa_start = TRUE;
+  conn->queued_xa_start_xid = xid;
+  DBUG_VOID_RETURN;
+}
+
+void spider_conn_clear_queue(
+  SPIDER_CONN *conn
+) {
+  DBUG_ENTER("spider_conn_clear_queue");
+  DBUG_PRINT("info", ("spider conn=%p", conn));
+/*
+  conn->queued_connect = FALSE;
+  conn->queued_ping = FALSE;
+*/
+  conn->queued_trx_isolation = FALSE;
+  conn->queued_semi_trx_isolation = FALSE;
+  conn->queued_autocommit = FALSE;
+  conn->queued_sql_log_off = FALSE;
+  conn->queued_wait_timeout = FALSE;
+  conn->queued_sql_mode = FALSE;
+  conn->queued_time_zone = FALSE;
+  conn->queued_trx_start = FALSE;
+  conn->queued_xa_start = FALSE;
+  DBUG_VOID_RETURN;
+}
+
+void spider_conn_clear_queue_at_commit(
+  SPIDER_CONN *conn
+) {
+  DBUG_ENTER("spider_conn_clear_queue_at_commit");
+  DBUG_PRINT("info", ("spider conn=%p", conn));
+  if (conn->queued_trx_start)
+  {
+    conn->queued_trx_start = FALSE;
+    conn->trx_start = FALSE;
+  }
+  conn->queued_xa_start = FALSE;
+  DBUG_VOID_RETURN;
+}
+
+void spider_conn_set_timeout(
+  SPIDER_CONN *conn,
+  uint net_read_timeout,
+  uint net_write_timeout
+) {
+  DBUG_ENTER("spider_conn_set_timeout");
+  DBUG_PRINT("info", ("spider conn=%p", conn));
+  if (net_read_timeout != conn->net_read_timeout)
+  {
+    DBUG_PRINT("info",("spider net_read_timeout set from %u to %u",
+      conn->net_read_timeout, net_read_timeout));
+    conn->queued_net_timeout = TRUE;
+    conn->net_read_timeout = net_read_timeout;
+  }
+  if (net_write_timeout != conn->net_write_timeout)
+  {
+    DBUG_PRINT("info",("spider net_write_timeout set from %u to %u",
+      conn->net_write_timeout, net_write_timeout));
+    conn->queued_net_timeout = TRUE;
+    conn->net_write_timeout = net_write_timeout;
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_conn_set_timeout_from_share(
+  SPIDER_CONN *conn,
+  int link_idx,
+  THD *thd,
+  SPIDER_SHARE *share
+) {
+  DBUG_ENTER("spider_conn_set_timeout_from_share");
+  spider_conn_set_timeout(
+    conn,
+    spider_param_net_read_timeout(thd, share->net_read_timeouts[link_idx]),
+    spider_param_net_write_timeout(thd, share->net_write_timeouts[link_idx])
+  );
+  DBUG_VOID_RETURN;
+}
+
+void spider_conn_set_timeout_from_direct_sql(
+  SPIDER_CONN *conn,
+  THD *thd,
+  SPIDER_DIRECT_SQL *direct_sql
+) {
+  DBUG_ENTER("spider_conn_set_timeout_from_direct_sql");
+  spider_conn_set_timeout(
+    conn,
+    spider_param_net_read_timeout(thd, direct_sql->net_read_timeout),
+    spider_param_net_write_timeout(thd, direct_sql->net_write_timeout)
+  );
+  DBUG_VOID_RETURN;
+}
+
+void spider_tree_insert(
+  SPIDER_CONN *top,
+  SPIDER_CONN *conn
+) {
+  SPIDER_CONN *current = top;
+  longlong priority = conn->priority;
+  DBUG_ENTER("spider_tree_insert");
+  while (TRUE)
+  {
+    if (priority < current->priority)
+    {
+      if (current->c_small == NULL)
+      {
+        conn->p_small = NULL;
+        conn->p_big = current;
+        conn->c_small = NULL;
+        conn->c_big = NULL;
+        current->c_small = conn;
+        break;
+      } else
+        current = current->c_small;
+    } else {
+      if (current->c_big == NULL)
+      {
+        conn->p_small = current;
+        conn->p_big = NULL;
+        conn->c_small = NULL;
+        conn->c_big = NULL;
+        current->c_big = conn;
+        break;
+      } else
+        current = current->c_big;
+    }
+  }
+  DBUG_VOID_RETURN;
+}
+
+SPIDER_CONN *spider_tree_first(
+  SPIDER_CONN *top
+) {
+  SPIDER_CONN *current = top;
+  DBUG_ENTER("spider_tree_first");
+  while (current)
+  {
+    if (current->c_small == NULL)
+      break;
+    else
+      current = current->c_small;
+  }
+  DBUG_RETURN(current);
+}
+
+SPIDER_CONN *spider_tree_last(
+  SPIDER_CONN *top
+) {
+  SPIDER_CONN *current = top;
+  DBUG_ENTER("spider_tree_last");
+  while (TRUE)
+  {
+    if (current->c_big == NULL)
+      break;
+    else
+      current = current->c_big;
+  }
+  DBUG_RETURN(current);
+}
+
+SPIDER_CONN *spider_tree_next(
+  SPIDER_CONN *current
+) {
+  DBUG_ENTER("spider_tree_next");
+  if (current->c_big)
+    DBUG_RETURN(spider_tree_first(current->c_big));
+  while (TRUE)
+  {
+    if (current->p_big)
+      DBUG_RETURN(current->p_big);
+    if (!current->p_small)
+      DBUG_RETURN(NULL);
+    current = current->p_small;
+  }
+}
+
+SPIDER_CONN *spider_tree_delete(
+  SPIDER_CONN *conn,
+  SPIDER_CONN *top
+) {
+  DBUG_ENTER("spider_tree_delete");
+  if (conn->p_small)
+  {
+    if (conn->c_small)
+    {
+      conn->c_small->p_big = NULL;
+      conn->c_small->p_small = conn->p_small;
+      conn->p_small->c_big = conn->c_small;
+      if (conn->c_big)
+      {
+        SPIDER_CONN *last = spider_tree_last(conn->c_small);
+        conn->c_big->p_small = last;
+        last->c_big = conn->c_big;
+      }
+    } else if (conn->c_big)
+    {
+      conn->c_big->p_small = conn->p_small;
+      conn->p_small->c_big = conn->c_big;
+    } else
+      conn->p_small->c_big = NULL;
+  } else if (conn->p_big)
+  {
+    if (conn->c_small)
+    {
+      conn->c_small->p_big = conn->p_big;
+      conn->p_big->c_small = conn->c_small;
+      if (conn->c_big)
+      {
+        SPIDER_CONN *last = spider_tree_last(conn->c_small);
+        conn->c_big->p_small = last;
+        last->c_big = conn->c_big;
+      }
+    } else if (conn->c_big)
+    {
+      conn->c_big->p_big = conn->p_big;
+      conn->c_big->p_small = NULL;
+      conn->p_big->c_small = conn->c_big;
+    } else
+      conn->p_big->c_small = NULL;
+  } else {
+    if (conn->c_small)
+    {
+      conn->c_small->p_big = NULL;
+      conn->c_small->p_small = NULL;
+      if (conn->c_big)
+      {
+        SPIDER_CONN *last = spider_tree_last(conn->c_small);
+        conn->c_big->p_small = last;
+        last->c_big = conn->c_big;
+      }
+      DBUG_RETURN(conn->c_small);
+    } else if (conn->c_big)
+    {
+      conn->c_big->p_small = NULL;
+      DBUG_RETURN(conn->c_big);
+    }
+    DBUG_RETURN(NULL);
+  }
+  DBUG_RETURN(top);
+}
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+int spider_set_conn_bg_param(
+  ha_spider *spider
+) {
+  int error_num, roop_count, bgs_mode;
+  SPIDER_SHARE *share = spider->share;
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  SPIDER_WIDE_HANDLER *wide_handler = spider->wide_handler;
+  THD *thd = wide_handler->trx->thd;
+  DBUG_ENTER("spider_set_conn_bg_param");
+  DBUG_PRINT("info",("spider spider=%p", spider));
+  bgs_mode =
+    spider_param_bgs_mode(thd, share->bgs_mode);
+  if (bgs_mode == 0)
+    result_list->bgs_phase = 0;
+  else if (
+    bgs_mode <= 2 &&
+    (wide_handler->external_lock_type == F_WRLCK ||
+      wide_handler->lock_mode == 2)
+  )
+    result_list->bgs_phase = 0;
+  else if (bgs_mode <= 1 && wide_handler->lock_mode == 1)
+    result_list->bgs_phase = 0;
+  else {
+    result_list->bgs_phase = 1;
+
+    result_list->bgs_split_read = spider_bg_split_read_param(spider);
+    if (spider->use_pre_call)
+    {
+      DBUG_PRINT("info",("spider use_pre_call=TRUE"));
+      result_list->bgs_first_read = result_list->bgs_split_read;
+      result_list->bgs_second_read = result_list->bgs_split_read;
+    } else {
+      DBUG_PRINT("info",("spider use_pre_call=FALSE"));
+      result_list->bgs_first_read =
+        spider_param_bgs_first_read(thd, share->bgs_first_read);
+      result_list->bgs_second_read =
+        spider_param_bgs_second_read(thd, share->bgs_second_read);
+    }
+    DBUG_PRINT("info",("spider bgs_split_read=%lld",
+      result_list->bgs_split_read));
+    DBUG_PRINT("info",("spider bgs_first_read=%lld", share->bgs_first_read));
+    DBUG_PRINT("info",("spider bgs_second_read=%lld", share->bgs_second_read));
+
+    result_list->split_read =
+      result_list->bgs_first_read > 0 ?
+      result_list->bgs_first_read :
+      result_list->bgs_split_read;
+  }
+
+  if (result_list->bgs_phase > 0)
+  {
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+    if (spider->use_fields)
+    {
+      SPIDER_LINK_IDX_CHAIN *link_idx_chain;
+      spider_fields *fields = spider->fields;
+      fields->set_pos_to_first_link_idx_chain();
+      while ((link_idx_chain = fields->get_next_link_idx_chain()))
+      {
+        if ((error_num = spider_create_conn_thread(link_idx_chain->conn)))
+          DBUG_RETURN(error_num);
+      }
+    } else {
+#endif
+      for (
+        roop_count = spider_conn_link_idx_next(share->link_statuses,
+          spider->conn_link_idx, -1, share->link_count,
+          spider->wide_handler->lock_mode ?
+          SPIDER_LINK_STATUS_RECOVERY : SPIDER_LINK_STATUS_OK);
+        roop_count < (int) share->link_count;
+        roop_count = spider_conn_link_idx_next(share->link_statuses,
+          spider->conn_link_idx, roop_count, share->link_count,
+          spider->wide_handler->lock_mode ?
+          SPIDER_LINK_STATUS_RECOVERY : SPIDER_LINK_STATUS_OK)
+      ) {
+        if ((error_num = spider_create_conn_thread(spider->conns[roop_count])))
+          DBUG_RETURN(error_num);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+        if ((error_num = spider_create_conn_thread(
+          spider->hs_r_conns[roop_count])))
+          DBUG_RETURN(error_num);
+        if ((error_num = spider_create_conn_thread(
+          spider->hs_w_conns[roop_count])))
+          DBUG_RETURN(error_num);
+#endif
+      }
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+    }
+#endif
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_create_conn_thread(
+  SPIDER_CONN *conn
+) {
+  int error_num;
+  DBUG_ENTER("spider_create_conn_thread");
+  if (conn && !conn->bg_init)
+  {
+#if MYSQL_VERSION_ID < 50500
+    if (pthread_mutex_init(&conn->bg_conn_chain_mutex, MY_MUTEX_INIT_FAST))
+#else
+    if (mysql_mutex_init(spd_key_mutex_bg_conn_chain,
+      &conn->bg_conn_chain_mutex, MY_MUTEX_INIT_FAST))
+#endif
+    {
+      error_num = HA_ERR_OUT_OF_MEM;
+      goto error_chain_mutex_init;
+    }
+    conn->bg_conn_chain_mutex_ptr = NULL;
+#if MYSQL_VERSION_ID < 50500
+    if (pthread_mutex_init(&conn->bg_conn_sync_mutex, MY_MUTEX_INIT_FAST))
+#else
+    if (mysql_mutex_init(spd_key_mutex_bg_conn_sync,
+      &conn->bg_conn_sync_mutex, MY_MUTEX_INIT_FAST))
+#endif
+    {
+      error_num = HA_ERR_OUT_OF_MEM;
+      goto error_sync_mutex_init;
+    }
+#if MYSQL_VERSION_ID < 50500
+    if (pthread_mutex_init(&conn->bg_conn_mutex, MY_MUTEX_INIT_FAST))
+#else
+    if (mysql_mutex_init(spd_key_mutex_bg_conn, &conn->bg_conn_mutex,
+      MY_MUTEX_INIT_FAST))
+#endif
+    {
+      error_num = HA_ERR_OUT_OF_MEM;
+      goto error_mutex_init;
+    }
+#if MYSQL_VERSION_ID < 50500
+    if (pthread_mutex_init(&conn->bg_job_stack_mutex, MY_MUTEX_INIT_FAST))
+#else
+    if (mysql_mutex_init(spd_key_mutex_bg_job_stack, &conn->bg_job_stack_mutex,
+      MY_MUTEX_INIT_FAST))
+#endif
+    {
+      error_num = HA_ERR_OUT_OF_MEM;
+      goto error_job_stack_mutex_init;
+    }
+    if (SPD_INIT_DYNAMIC_ARRAY2(&conn->bg_job_stack, sizeof(void *), NULL, 16,
+      16, MYF(MY_WME)))
+    {
+      error_num = HA_ERR_OUT_OF_MEM;
+      goto error_job_stack_init;
+    }
+    spider_alloc_calc_mem_init(conn->bg_job_stack, 163);
+    spider_alloc_calc_mem(spider_current_trx,
+      conn->bg_job_stack,
+      conn->bg_job_stack.max_element *
+      conn->bg_job_stack.size_of_element);
+    conn->bg_job_stack_cur_pos = 0;
+#if MYSQL_VERSION_ID < 50500
+    if (pthread_cond_init(&conn->bg_conn_sync_cond, NULL))
+#else
+    if (mysql_cond_init(spd_key_cond_bg_conn_sync,
+      &conn->bg_conn_sync_cond, NULL))
+#endif
+    {
+      error_num = HA_ERR_OUT_OF_MEM;
+      goto error_sync_cond_init;
+    }
+#if MYSQL_VERSION_ID < 50500
+    if (pthread_cond_init(&conn->bg_conn_cond, NULL))
+#else
+    if (mysql_cond_init(spd_key_cond_bg_conn,
+      &conn->bg_conn_cond, NULL))
+#endif
+    {
+      error_num = HA_ERR_OUT_OF_MEM;
+      goto error_cond_init;
+    }
+    pthread_mutex_lock(&conn->bg_conn_mutex);
+#if MYSQL_VERSION_ID < 50500
+    if (pthread_create(&conn->bg_thread, &spider_pt_attr,
+      spider_bg_conn_action, (void *) conn)
+    )
+#else
+    if (mysql_thread_create(spd_key_thd_bg, &conn->bg_thread,
+      &spider_pt_attr, spider_bg_conn_action, (void *) conn)
+    )
+#endif
+    {
+      pthread_mutex_unlock(&conn->bg_conn_mutex);
+      error_num = HA_ERR_OUT_OF_MEM;
+      goto error_thread_create;
+    }
+    pthread_mutex_lock(&conn->bg_conn_sync_mutex);
+    pthread_mutex_unlock(&conn->bg_conn_mutex);
+    pthread_cond_wait(&conn->bg_conn_sync_cond, &conn->bg_conn_sync_mutex);
+    pthread_mutex_unlock(&conn->bg_conn_sync_mutex);
+    if (!conn->bg_init)
+    {
+      error_num = HA_ERR_OUT_OF_MEM;
+      goto error_thread_create;
+    }
+  }
+  DBUG_RETURN(0);
+
+error_thread_create:
+  pthread_cond_destroy(&conn->bg_conn_cond);
+error_cond_init:
+  pthread_cond_destroy(&conn->bg_conn_sync_cond);
+error_sync_cond_init:
+  spider_free_mem_calc(spider_current_trx,
+    conn->bg_job_stack_id,
+    conn->bg_job_stack.max_element *
+    conn->bg_job_stack.size_of_element);
+  delete_dynamic(&conn->bg_job_stack);
+error_job_stack_init:
+  pthread_mutex_destroy(&conn->bg_job_stack_mutex);
+error_job_stack_mutex_init:
+  pthread_mutex_destroy(&conn->bg_conn_mutex);
+error_mutex_init:
+  pthread_mutex_destroy(&conn->bg_conn_sync_mutex);
+error_sync_mutex_init:
+  pthread_mutex_destroy(&conn->bg_conn_chain_mutex);
+error_chain_mutex_init:
+  DBUG_RETURN(error_num);
+}
+
+void spider_free_conn_thread(
+  SPIDER_CONN *conn
+) {
+  DBUG_ENTER("spider_free_conn_thread");
+  if (conn->bg_init)
+  {
+    spider_bg_conn_break(conn, NULL);
+    pthread_mutex_lock(&conn->bg_conn_mutex);
+    conn->bg_kill = TRUE;
+    pthread_mutex_lock(&conn->bg_conn_sync_mutex);
+    pthread_cond_signal(&conn->bg_conn_cond);
+    pthread_mutex_unlock(&conn->bg_conn_mutex);
+    pthread_cond_wait(&conn->bg_conn_sync_cond, &conn->bg_conn_sync_mutex);
+    pthread_mutex_unlock(&conn->bg_conn_sync_mutex);
+    pthread_join(conn->bg_thread, NULL);
+    pthread_cond_destroy(&conn->bg_conn_cond);
+    pthread_cond_destroy(&conn->bg_conn_sync_cond);
+    spider_free_mem_calc(spider_current_trx,
+      conn->bg_job_stack_id,
+      conn->bg_job_stack.max_element *
+      conn->bg_job_stack.size_of_element);
+    delete_dynamic(&conn->bg_job_stack);
+    pthread_mutex_destroy(&conn->bg_job_stack_mutex);
+    pthread_mutex_destroy(&conn->bg_conn_mutex);
+    pthread_mutex_destroy(&conn->bg_conn_sync_mutex);
+    pthread_mutex_destroy(&conn->bg_conn_chain_mutex);
+    conn->bg_kill = FALSE;
+    conn->bg_init = FALSE;
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_bg_conn_wait(
+  SPIDER_CONN *conn
+) {
+  DBUG_ENTER("spider_bg_conn_wait");
+  if (conn->bg_init)
+  {
+    pthread_mutex_lock(&conn->bg_conn_mutex);
+    pthread_mutex_unlock(&conn->bg_conn_mutex);
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_bg_all_conn_wait(
+  ha_spider *spider
+) {
+  int roop_count;
+  SPIDER_CONN *conn;
+  SPIDER_SHARE *share = spider->share;
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  DBUG_ENTER("spider_bg_all_conn_wait");
+  for (
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, -1, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY);
+    roop_count < (int) share->link_count;
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, roop_count, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY)
+  ) {
+    conn = spider->conns[roop_count];
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+    if (conn && result_list->bgs_working)
+      spider_bg_conn_wait(conn);
+#endif
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_bg_all_conn_pre_next(
+  ha_spider *spider,
+  int link_idx
+) {
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  int roop_start, roop_end, roop_count, lock_mode, link_ok, error_num;
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  SPIDER_SHARE *share = spider->share;
+#endif
+  DBUG_ENTER("spider_bg_all_conn_pre_next");
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  if (result_list->bgs_phase > 0)
+  {
+    lock_mode = spider_conn_lock_mode(spider);
+    if (lock_mode)
+    {
+      /* "for update" or "lock in share mode" */
+      link_ok = spider_conn_link_idx_next(share->link_statuses,
+        spider->conn_link_idx, -1, share->link_count,
+        SPIDER_LINK_STATUS_OK);
+      roop_start = spider_conn_link_idx_next(share->link_statuses,
+        spider->conn_link_idx, -1, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY);
+      roop_end = spider->share->link_count;
+    } else {
+      link_ok = link_idx;
+      roop_start = link_idx;
+      roop_end = link_idx + 1;
+    }
+
+    for (roop_count = roop_start; roop_count < roop_end;
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        spider->conn_link_idx, roop_count, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY)
+    ) {
+      if ((error_num = spider_bg_conn_search(spider, roop_count, roop_start,
+        TRUE, TRUE, (roop_count != link_ok))))
+        DBUG_RETURN(error_num);
+    }
+  }
+#endif
+  DBUG_RETURN(0);
+}
+
+void spider_bg_conn_break(
+  SPIDER_CONN *conn,
+  ha_spider *spider
+) {
+  DBUG_ENTER("spider_bg_conn_break");
+  if (
+    conn->bg_init &&
+    conn->bg_thd != current_thd &&
+    (
+      !spider ||
+      (
+        spider->result_list.bgs_working &&
+        conn->bg_target == spider
+      )
+    )
+  ) {
+    conn->bg_break = TRUE;
+    pthread_mutex_lock(&conn->bg_conn_mutex);
+    pthread_mutex_unlock(&conn->bg_conn_mutex);
+    conn->bg_break = FALSE;
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_bg_all_conn_break(
+  ha_spider *spider
+) {
+  int roop_count;
+  SPIDER_CONN *conn;
+  SPIDER_SHARE *share = spider->share;
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  DBUG_ENTER("spider_bg_all_conn_break");
+  for (
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, -1, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY);
+    roop_count < (int) share->link_count;
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, roop_count, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY)
+  ) {
+    conn = spider->conns[roop_count];
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+    if (conn && result_list->bgs_working)
+      spider_bg_conn_break(conn, spider);
+#endif
+    if (spider->quick_targets[roop_count])
+    {
+      spider_db_free_one_quick_result((SPIDER_RESULT *) result_list->current);
+      DBUG_ASSERT(spider->quick_targets[roop_count] == conn->quick_target);
+      DBUG_PRINT("info", ("spider conn[%p]->quick_target=NULL", conn));
+      conn->quick_target = NULL;
+      spider->quick_targets[roop_count] = NULL;
+    }
+  }
+  DBUG_VOID_RETURN;
+}
+
+bool spider_bg_conn_get_job(
+  SPIDER_CONN *conn
+) {
+  DBUG_ENTER("spider_bg_conn_get_job");
+  pthread_mutex_lock(&conn->bg_job_stack_mutex);
+  if (conn->bg_job_stack_cur_pos >= conn->bg_job_stack.elements)
+  {
+    DBUG_PRINT("info",("spider bg all jobs are completed"));
+    conn->bg_get_job_stack_off = FALSE;
+    pthread_mutex_unlock(&conn->bg_job_stack_mutex);
+    DBUG_RETURN(FALSE);
+  }
+  DBUG_PRINT("info",("spider bg get job %u",
+    conn->bg_job_stack_cur_pos));
+  conn->bg_target = ((void **) (conn->bg_job_stack.buffer +
+    conn->bg_job_stack.size_of_element * conn->bg_job_stack_cur_pos))[0];
+  conn->bg_job_stack_cur_pos++;
+  if (conn->bg_job_stack_cur_pos == conn->bg_job_stack.elements)
+  {
+    DBUG_PRINT("info",("spider bg shift job stack"));
+    conn->bg_job_stack_cur_pos = 0;
+    conn->bg_job_stack.elements = 0;
+  }
+  pthread_mutex_unlock(&conn->bg_job_stack_mutex);
+  DBUG_RETURN(TRUE);
+}
+
+int spider_bg_conn_search(
+  ha_spider *spider,
+  int link_idx,
+  int first_link_idx,
+  bool first,
+  bool pre_next,
+  bool discard_result
+) {
+  int error_num;
+  SPIDER_CONN *conn, *first_conn = NULL;
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  bool with_lock = FALSE;
+  DBUG_ENTER("spider_bg_conn_search");
+  DBUG_PRINT("info",("spider spider=%p", spider));
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (spider->conn_kind[link_idx] == SPIDER_CONN_KIND_MYSQL)
+  {
+#endif
+    conn = spider->conns[link_idx];
+    with_lock = (spider_conn_lock_mode(spider) != SPIDER_LOCK_MODE_NO_LOCK);
+    first_conn = spider->conns[first_link_idx];
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  } else if (spider->conn_kind[link_idx] == SPIDER_CONN_KIND_HS_READ)
+    conn = spider->hs_r_conns[link_idx];
+  else
+    conn = spider->hs_w_conns[link_idx];
+#endif
+  if (first)
+  {
+    if (spider->use_pre_call)
+    {
+      DBUG_PRINT("info",("spider skip bg first search"));
+    } else {
+      DBUG_PRINT("info",("spider bg first search"));
+      pthread_mutex_lock(&conn->bg_conn_mutex);
+      result_list->bgs_working = TRUE;
+      conn->bg_search = TRUE;
+      conn->bg_caller_wait = TRUE;
+      conn->bg_target = spider;
+      conn->link_idx = link_idx;
+      conn->bg_discard_result = discard_result;
+      pthread_mutex_lock(&conn->bg_conn_sync_mutex);
+      pthread_cond_signal(&conn->bg_conn_cond);
+      pthread_mutex_unlock(&conn->bg_conn_mutex);
+      pthread_cond_wait(&conn->bg_conn_sync_cond, &conn->bg_conn_sync_mutex);
+      pthread_mutex_unlock(&conn->bg_conn_sync_mutex);
+      conn->bg_caller_wait = FALSE;
+      if (result_list->bgs_error)
+      {
+        if (result_list->bgs_error_with_message)
+          my_message(result_list->bgs_error,
+            result_list->bgs_error_msg, MYF(0));
+        DBUG_RETURN(result_list->bgs_error);
+      }
+    }
+    if (result_list->bgs_working || !result_list->finish_flg)
+    {
+      pthread_mutex_lock(&conn->bg_conn_mutex);
+      if (!result_list->finish_flg)
+      {
+        DBUG_PRINT("info",("spider bg second search"));
+        if (!spider->use_pre_call || pre_next)
+        {
+          if (result_list->bgs_error)
+          {
+            pthread_mutex_unlock(&conn->bg_conn_mutex);
+            DBUG_PRINT("info",("spider bg error"));
+            if (result_list->bgs_error == HA_ERR_END_OF_FILE)
+            {
+              DBUG_PRINT("info",("spider bg current->finish_flg=%s",
+                result_list->current ?
+                (result_list->current->finish_flg ? "TRUE" : "FALSE") : "NULL"));
+              DBUG_RETURN(0);
+            }
+            if (result_list->bgs_error_with_message)
+              my_message(result_list->bgs_error,
+                result_list->bgs_error_msg, MYF(0));
+            DBUG_RETURN(result_list->bgs_error);
+          }
+          DBUG_PRINT("info",("spider result_list->quick_mode=%d",
+            result_list->quick_mode));
+          DBUG_PRINT("info",("spider result_list->bgs_current->result=%p",
+            result_list->bgs_current->result));
+          if (
+            result_list->quick_mode == 0 ||
+            !result_list->bgs_current->result
+          ) {
+            DBUG_PRINT("info",("spider result_list->bgs_second_read=%lld",
+              result_list->bgs_second_read));
+            DBUG_PRINT("info",("spider result_list->bgs_split_read=%lld",
+              result_list->bgs_split_read));
+            result_list->split_read =
+              result_list->bgs_second_read > 0 ?
+              result_list->bgs_second_read :
+              result_list->bgs_split_read;
+            result_list->limit_num =
+              result_list->internal_limit - result_list->record_num >=
+              result_list->split_read ?
+              result_list->split_read :
+              result_list->internal_limit - result_list->record_num;
+            DBUG_PRINT("info",("spider sql_kinds=%u", spider->sql_kinds));
+            if (spider->sql_kinds & SPIDER_SQL_KIND_SQL)
+            {
+              if ((error_num = spider->reappend_limit_sql_part(
+                result_list->internal_offset + result_list->record_num,
+                result_list->limit_num,
+                SPIDER_SQL_TYPE_SELECT_SQL)))
+              {
+                pthread_mutex_unlock(&conn->bg_conn_mutex);
+                DBUG_RETURN(error_num);
+              }
+              if (
+                !result_list->use_union &&
+                (error_num = spider->append_select_lock_sql_part(
+                  SPIDER_SQL_TYPE_SELECT_SQL))
+              ) {
+                pthread_mutex_unlock(&conn->bg_conn_mutex);
+                DBUG_RETURN(error_num);
+              }
+            }
+            if (spider->sql_kinds & SPIDER_SQL_KIND_HANDLER)
+            {
+              spider_db_append_handler_next(spider);
+              if ((error_num = spider->reappend_limit_sql_part(
+                0, result_list->limit_num,
+                SPIDER_SQL_TYPE_HANDLER)))
+              {
+                pthread_mutex_unlock(&conn->bg_conn_mutex);
+                DBUG_RETURN(error_num);
+              }
+            }
+          }
+          result_list->bgs_phase = 2;
+          if (conn->db_conn->limit_mode() == 1)
+          {
+            conn->db_conn->set_limit(result_list->limit_num);
+            if (!discard_result)
+            {
+              if ((error_num = spider_db_store_result_for_reuse_cursor(
+                spider, link_idx, result_list->table)))
+              {
+                pthread_mutex_unlock(&conn->bg_conn_mutex);
+                DBUG_RETURN(error_num);
+              }
+            }
+            pthread_mutex_unlock(&conn->bg_conn_mutex);
+            DBUG_RETURN(0);
+          }
+        }
+        result_list->bgs_working = TRUE;
+        conn->bg_search = TRUE;
+        if (with_lock)
+          conn->bg_conn_chain_mutex_ptr = &first_conn->bg_conn_chain_mutex;
+        conn->bg_caller_sync_wait = TRUE;
+        conn->bg_target = spider;
+        conn->link_idx = link_idx;
+        conn->bg_discard_result = discard_result;
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+        conn->link_idx_chain = spider->link_idx_chain;
+#endif
+        pthread_mutex_lock(&conn->bg_conn_sync_mutex);
+        pthread_cond_signal(&conn->bg_conn_cond);
+        pthread_mutex_unlock(&conn->bg_conn_mutex);
+        pthread_cond_wait(&conn->bg_conn_sync_cond, &conn->bg_conn_sync_mutex);
+        pthread_mutex_unlock(&conn->bg_conn_sync_mutex);
+        conn->bg_caller_sync_wait = FALSE;
+      } else {
+        pthread_mutex_unlock(&conn->bg_conn_mutex);
+        DBUG_PRINT("info",("spider bg current->finish_flg=%s",
+          result_list->current ?
+          (result_list->current->finish_flg ? "TRUE" : "FALSE") : "NULL"));
+        if (result_list->bgs_error)
+        {
+          DBUG_PRINT("info",("spider bg error"));
+          if (result_list->bgs_error != HA_ERR_END_OF_FILE)
+          {
+            if (result_list->bgs_error_with_message)
+              my_message(result_list->bgs_error,
+                result_list->bgs_error_msg, MYF(0));
+            DBUG_RETURN(result_list->bgs_error);
+          }
+        }
+      }
+    } else {
+      DBUG_PRINT("info",("spider bg current->finish_flg=%s",
+        result_list->current ?
+        (result_list->current->finish_flg ? "TRUE" : "FALSE") : "NULL"));
+      if (result_list->bgs_error)
+      {
+        DBUG_PRINT("info",("spider bg error"));
+        if (result_list->bgs_error != HA_ERR_END_OF_FILE)
+        {
+          if (result_list->bgs_error_with_message)
+            my_message(result_list->bgs_error,
+              result_list->bgs_error_msg, MYF(0));
+          DBUG_RETURN(result_list->bgs_error);
+        }
+      }
+    }
+  } else {
+    DBUG_PRINT("info",("spider bg search"));
+    if (result_list->current->finish_flg)
+    {
+      DBUG_PRINT("info",("spider bg end of file"));
+      result_list->table->status = STATUS_NOT_FOUND;
+      DBUG_RETURN(HA_ERR_END_OF_FILE);
+    }
+    if (result_list->bgs_working)
+    {
+      /* wait */
+      DBUG_PRINT("info",("spider bg working wait"));
+      pthread_mutex_lock(&conn->bg_conn_mutex);
+      pthread_mutex_unlock(&conn->bg_conn_mutex);
+    }
+    if (result_list->bgs_error)
+    {
+      DBUG_PRINT("info",("spider bg error"));
+      if (result_list->bgs_error == HA_ERR_END_OF_FILE)
+      {
+        result_list->current = result_list->current->next;
+        result_list->current_row_num = 0;
+        result_list->table->status = STATUS_NOT_FOUND;
+      }
+      if (result_list->bgs_error_with_message)
+        my_message(result_list->bgs_error,
+          result_list->bgs_error_msg, MYF(0));
+      DBUG_RETURN(result_list->bgs_error);
+    }
+    result_list->current = result_list->current->next;
+    result_list->current_row_num = 0;
+    if (result_list->current == result_list->bgs_current)
+    {
+      DBUG_PRINT("info",("spider bg next search"));
+      if (!result_list->current->finish_flg)
+      {
+        DBUG_PRINT("info",("spider result_list->quick_mode=%d",
+          result_list->quick_mode));
+        DBUG_PRINT("info",("spider result_list->bgs_current->result=%p",
+          result_list->bgs_current->result));
+        pthread_mutex_lock(&conn->bg_conn_mutex);
+        result_list->bgs_phase = 3;
+        if (
+          result_list->quick_mode == 0 ||
+          !result_list->bgs_current->result
+        ) {
+          result_list->split_read = result_list->bgs_split_read;
+          result_list->limit_num =
+            result_list->internal_limit - result_list->record_num >=
+            result_list->split_read ?
+            result_list->split_read :
+            result_list->internal_limit - result_list->record_num;
+          DBUG_PRINT("info",("spider sql_kinds=%u", spider->sql_kinds));
+          if (spider->sql_kinds & SPIDER_SQL_KIND_SQL)
+          {
+            if ((error_num = spider->reappend_limit_sql_part(
+              result_list->internal_offset + result_list->record_num,
+              result_list->limit_num,
+              SPIDER_SQL_TYPE_SELECT_SQL)))
+            {
+              pthread_mutex_unlock(&conn->bg_conn_mutex);
+              DBUG_RETURN(error_num);
+            }
+            if (
+              !result_list->use_union &&
+              (error_num = spider->append_select_lock_sql_part(
+                SPIDER_SQL_TYPE_SELECT_SQL))
+            ) {
+              pthread_mutex_unlock(&conn->bg_conn_mutex);
+              DBUG_RETURN(error_num);
+            }
+          }
+          if (spider->sql_kinds & SPIDER_SQL_KIND_HANDLER)
+          {
+            spider_db_append_handler_next(spider);
+            if ((error_num = spider->reappend_limit_sql_part(
+              0, result_list->limit_num,
+              SPIDER_SQL_TYPE_HANDLER)))
+            {
+              pthread_mutex_unlock(&conn->bg_conn_mutex);
+              DBUG_RETURN(error_num);
+            }
+          }
+          if (conn->db_conn->limit_mode() == 1)
+          {
+            conn->db_conn->set_limit(result_list->limit_num);
+            if (!discard_result)
+            {
+              if ((error_num = spider_db_store_result_for_reuse_cursor(
+                spider, link_idx, result_list->table)))
+              {
+                pthread_mutex_unlock(&conn->bg_conn_mutex);
+                DBUG_RETURN(error_num);
+              }
+            }
+            pthread_mutex_unlock(&conn->bg_conn_mutex);
+            DBUG_RETURN(0);
+          }
+        }
+        conn->bg_target = spider;
+        conn->link_idx = link_idx;
+        conn->bg_discard_result = discard_result;
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+        conn->link_idx_chain = spider->link_idx_chain;
+#endif
+        result_list->bgs_working = TRUE;
+        conn->bg_search = TRUE;
+        if (with_lock)
+          conn->bg_conn_chain_mutex_ptr = &first_conn->bg_conn_chain_mutex;
+        conn->bg_caller_sync_wait = TRUE;
+        pthread_mutex_lock(&conn->bg_conn_sync_mutex);
+        pthread_cond_signal(&conn->bg_conn_cond);
+        pthread_mutex_unlock(&conn->bg_conn_mutex);
+        pthread_cond_wait(&conn->bg_conn_sync_cond, &conn->bg_conn_sync_mutex);
+        pthread_mutex_unlock(&conn->bg_conn_sync_mutex);
+        conn->bg_caller_sync_wait = FALSE;
+      }
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+void spider_bg_conn_simple_action(
+  SPIDER_CONN *conn,
+  uint simple_action,
+  bool caller_wait,
+  void *target,
+  uint link_idx,
+  int *error_num
+) {
+  DBUG_ENTER("spider_bg_conn_simple_action");
+  pthread_mutex_lock(&conn->bg_conn_mutex);
+  conn->bg_target = target;
+  conn->link_idx = link_idx;
+  conn->bg_simple_action = simple_action;
+  conn->bg_error_num = error_num;
+  if (caller_wait)
+  {
+    conn->bg_caller_wait = TRUE;
+    pthread_mutex_lock(&conn->bg_conn_sync_mutex);
+  } else {
+    conn->bg_caller_sync_wait = TRUE;
+    pthread_mutex_lock(&conn->bg_conn_sync_mutex);
+  }
+  pthread_cond_signal(&conn->bg_conn_cond);
+  pthread_mutex_unlock(&conn->bg_conn_mutex);
+  if (caller_wait)
+  {
+    pthread_cond_wait(&conn->bg_conn_sync_cond, &conn->bg_conn_sync_mutex);
+    pthread_mutex_unlock(&conn->bg_conn_sync_mutex);
+    conn->bg_caller_wait = FALSE;
+  } else {
+    pthread_cond_wait(&conn->bg_conn_sync_cond, &conn->bg_conn_sync_mutex);
+    pthread_mutex_unlock(&conn->bg_conn_sync_mutex);
+    conn->bg_caller_sync_wait = FALSE;
+  }
+  DBUG_VOID_RETURN;
+}
+
+void *spider_bg_conn_action(
+  void *arg
+) {
+  int error_num;
+  SPIDER_CONN *conn = (SPIDER_CONN*) arg;
+  SPIDER_TRX *trx;
+  ha_spider *spider;
+  SPIDER_RESULT_LIST *result_list;
+  THD *thd;
+  my_thread_init();
+  DBUG_ENTER("spider_bg_conn_action");
+  /* init start */
+  if (!(thd = SPIDER_new_THD(next_thread_id())))
+  {
+    pthread_mutex_lock(&conn->bg_conn_sync_mutex);
+    pthread_cond_signal(&conn->bg_conn_sync_cond);
+    pthread_mutex_unlock(&conn->bg_conn_sync_mutex);
+    my_thread_end();
+    DBUG_RETURN(NULL);
+  }
+  SPIDER_set_next_thread_id(thd);
+#ifdef HAVE_PSI_INTERFACE
+  mysql_thread_set_psi_id(thd->thread_id);
+#endif
+  thd->thread_stack = (char*) &thd;
+  thd->store_globals();
+  if (!(trx = spider_get_trx(thd, FALSE, &error_num)))
+  {
+    delete thd;
+    pthread_mutex_lock(&conn->bg_conn_sync_mutex);
+    pthread_cond_signal(&conn->bg_conn_sync_cond);
+    pthread_mutex_unlock(&conn->bg_conn_sync_mutex);
+#if !defined(MYSQL_DYNAMIC_PLUGIN) || !defined(_WIN32)
+    set_current_thd(nullptr);
+#endif
+    my_thread_end();
+    DBUG_RETURN(NULL);
+  }
+  /* lex_start(thd); */
+  conn->bg_thd = thd;
+  pthread_mutex_lock(&conn->bg_conn_mutex);
+  pthread_mutex_lock(&conn->bg_conn_sync_mutex);
+  pthread_cond_signal(&conn->bg_conn_sync_cond);
+  conn->bg_init = TRUE;
+  pthread_mutex_unlock(&conn->bg_conn_sync_mutex);
+  /* init end */
+
+  while (TRUE)
+  {
+    if (conn->bg_conn_chain_mutex_ptr)
+    {
+      pthread_mutex_unlock(conn->bg_conn_chain_mutex_ptr);
+      conn->bg_conn_chain_mutex_ptr = NULL;
+    }
+    thd->clear_error();
+    pthread_cond_wait(&conn->bg_conn_cond, &conn->bg_conn_mutex);
+    DBUG_PRINT("info",("spider bg roop start"));
+#ifndef DBUG_OFF
+    DBUG_PRINT("info",("spider conn->thd=%p", conn->thd));
+    if (conn->thd)
+    {
+      DBUG_PRINT("info",("spider query_id=%lld", conn->thd->query_id));
+    }
+#endif
+    if (conn->bg_caller_sync_wait)
+    {
+      pthread_mutex_lock(&conn->bg_conn_sync_mutex);
+      if (conn->bg_direct_sql)
+        conn->bg_get_job_stack_off = TRUE;
+      pthread_cond_signal(&conn->bg_conn_sync_cond);
+      pthread_mutex_unlock(&conn->bg_conn_sync_mutex);
+      if (conn->bg_conn_chain_mutex_ptr)
+      {
+        pthread_mutex_lock(conn->bg_conn_chain_mutex_ptr);
+        if ((&conn->bg_conn_chain_mutex) != conn->bg_conn_chain_mutex_ptr)
+        {
+          pthread_mutex_unlock(conn->bg_conn_chain_mutex_ptr);
+          conn->bg_conn_chain_mutex_ptr = NULL;
+        }
+      }
+    }
+    if (conn->bg_kill)
+    {
+      DBUG_PRINT("info",("spider bg kill start"));
+      if (conn->bg_conn_chain_mutex_ptr)
+      {
+        pthread_mutex_unlock(conn->bg_conn_chain_mutex_ptr);
+        conn->bg_conn_chain_mutex_ptr = NULL;
+      }
+      spider_free_trx(trx, TRUE);
+      /* lex_end(thd->lex); */
+      delete thd;
+      pthread_mutex_lock(&conn->bg_conn_sync_mutex);
+      pthread_cond_signal(&conn->bg_conn_sync_cond);
+      pthread_mutex_unlock(&conn->bg_conn_mutex);
+      pthread_mutex_unlock(&conn->bg_conn_sync_mutex);
+#if !defined(MYSQL_DYNAMIC_PLUGIN) || !defined(_WIN32)
+      set_current_thd(nullptr);
+#endif
+      my_thread_end();
+      DBUG_RETURN(NULL);
+    }
+    if (conn->bg_get_job_stack)
+    {
+      conn->bg_get_job_stack = FALSE;
+      if (!spider_bg_conn_get_job(conn))
+      {
+        conn->bg_direct_sql = FALSE;
+      }
+    }
+    if (conn->bg_search)
+    {
+      SPIDER_SHARE *share;
+      spider_db_handler *dbton_handler;
+      DBUG_PRINT("info",("spider bg search start"));
+      spider = (ha_spider*) conn->bg_target;
+      share = spider->share;
+      dbton_handler = spider->dbton_handler[conn->dbton_id];
+      result_list = &spider->result_list;
+      result_list->bgs_error = 0;
+      result_list->bgs_error_with_message = FALSE;
+      if (
+        result_list->quick_mode == 0 ||
+        result_list->bgs_phase == 1 ||
+        !result_list->bgs_current->result
+      ) {
+        ulong sql_type;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+        if (conn->conn_kind == SPIDER_CONN_KIND_MYSQL)
+        {
+#endif
+          if (spider->sql_kind[conn->link_idx] == SPIDER_SQL_KIND_SQL)
+          {
+            sql_type = SPIDER_SQL_TYPE_SELECT_SQL | SPIDER_SQL_TYPE_TMP_SQL;
+          } else {
+            sql_type = SPIDER_SQL_TYPE_HANDLER;
+          }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+        } else {
+          sql_type = SPIDER_SQL_TYPE_SELECT_HS;
+        }
+#endif
+        pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+        if (dbton_handler->need_lock_before_set_sql_for_exec(sql_type))
+        {
+          pthread_mutex_lock(&conn->mta_conn_mutex);
+          SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        }
+        if (spider->use_fields)
+        {
+          if ((error_num = dbton_handler->set_sql_for_exec(sql_type,
+            conn->link_idx, conn->link_idx_chain)))
+          {
+            result_list->bgs_error = error_num;
+            if ((result_list->bgs_error_with_message = thd->is_error()))
+              strmov(result_list->bgs_error_msg, spider_stmt_da_message(thd));
+          }
+        } else {
+          if ((error_num = dbton_handler->set_sql_for_exec(sql_type,
+            conn->link_idx)))
+          {
+            result_list->bgs_error = error_num;
+            if ((result_list->bgs_error_with_message = thd->is_error()))
+              strmov(result_list->bgs_error_msg, spider_stmt_da_message(thd));
+          }
+        }
+        if (!dbton_handler->need_lock_before_set_sql_for_exec(sql_type))
+        {
+          pthread_mutex_lock(&conn->mta_conn_mutex);
+          SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        }
+        sql_type &= ~SPIDER_SQL_TYPE_TMP_SQL;
+        DBUG_PRINT("info",("spider sql_type=%lu", sql_type));
+#ifdef HA_CAN_BULK_ACCESS
+        if (spider->is_bulk_access_clone)
+        {
+          spider->connection_ids[conn->link_idx] = conn->connection_id;
+          spider_trx_add_bulk_access_conn(spider->trx, conn);
+        }
+#endif
+        if (!result_list->bgs_error)
+        {
+          conn->need_mon = &spider->need_mons[conn->link_idx];
+          DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = TRUE;
+          conn->mta_conn_mutex_unlock_later = TRUE;
+#ifdef HA_CAN_BULK_ACCESS
+          if (!spider->is_bulk_access_clone)
+          {
+#endif
+            if (!(result_list->bgs_error =
+              spider_db_set_names(spider, conn, conn->link_idx)))
+            {
+              if (
+                result_list->tmp_table_join && spider->bka_mode != 2 &&
+                spider_bit_is_set(result_list->tmp_table_join_first,
+                  conn->link_idx)
+              ) {
+                spider_clear_bit(result_list->tmp_table_join_first,
+                  conn->link_idx);
+                spider_set_bit(result_list->tmp_table_created,
+                  conn->link_idx);
+                result_list->tmp_tables_created = TRUE;
+                spider_conn_set_timeout_from_share(conn, conn->link_idx,
+                  spider->wide_handler->trx->thd, share);
+                if (dbton_handler->execute_sql(
+                  SPIDER_SQL_TYPE_TMP_SQL,
+                  conn,
+                  -1,
+                  &spider->need_mons[conn->link_idx])
+                ) {
+                  result_list->bgs_error = spider_db_errorno(conn);
+                  if ((result_list->bgs_error_with_message = thd->is_error()))
+                    strmov(result_list->bgs_error_msg,
+                      spider_stmt_da_message(thd));
+                } else
+                  spider_db_discard_multiple_result(spider, conn->link_idx,
+                    conn);
+              }
+              if (!result_list->bgs_error)
+              {
+                spider_conn_set_timeout_from_share(conn, conn->link_idx,
+                  spider->wide_handler->trx->thd, share);
+                if (dbton_handler->execute_sql(
+                  sql_type,
+                  conn,
+                  result_list->quick_mode,
+                  &spider->need_mons[conn->link_idx])
+                ) {
+                  result_list->bgs_error = spider_db_errorno(conn);
+                  if ((result_list->bgs_error_with_message = thd->is_error()))
+                    strmov(result_list->bgs_error_msg,
+                      spider_stmt_da_message(thd));
+                } else {
+                  spider->connection_ids[conn->link_idx] = conn->connection_id;
+                  if (!conn->bg_discard_result)
+                  {
+                    if (!(result_list->bgs_error =
+                      spider_db_store_result(spider, conn->link_idx,
+                        result_list->table)))
+                      spider->result_link_idx = conn->link_idx;
+                    else {
+                      if ((result_list->bgs_error_with_message =
+                        thd->is_error()))
+                        strmov(result_list->bgs_error_msg,
+                          spider_stmt_da_message(thd));
+                    }
+                  } else {
+                    result_list->bgs_error = 0;
+                    spider_db_discard_result(spider, conn->link_idx, conn);
+                  }
+                }
+              }
+            } else {
+              if ((result_list->bgs_error_with_message = thd->is_error()))
+                strmov(result_list->bgs_error_msg,
+                  spider_stmt_da_message(thd));
+            }
+#ifdef HA_CAN_BULK_ACCESS
+          }
+#endif
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+        } else {
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+        }
+      } else {
+        spider->connection_ids[conn->link_idx] = conn->connection_id;
+        pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+        DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_unlock_later = TRUE;
+        result_list->bgs_error =
+          spider_db_store_result(spider, conn->link_idx, result_list->table);
+        if ((result_list->bgs_error_with_message = thd->is_error()))
+          strmov(result_list->bgs_error_msg, spider_stmt_da_message(thd));
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_unlock_later = FALSE;
+      }
+      conn->bg_search = FALSE;
+      result_list->bgs_working = FALSE;
+      if (conn->bg_caller_wait)
+      {
+        pthread_mutex_lock(&conn->bg_conn_sync_mutex);
+        pthread_cond_signal(&conn->bg_conn_sync_cond);
+        pthread_mutex_unlock(&conn->bg_conn_sync_mutex);
+      }
+      continue;
+    }
+    if (conn->bg_direct_sql)
+    {
+      bool is_error = FALSE;
+      DBUG_PRINT("info",("spider bg direct sql start"));
+      do {
+        SPIDER_DIRECT_SQL *direct_sql = (SPIDER_DIRECT_SQL *) conn->bg_target;
+        if (
+          (error_num = spider_db_udf_direct_sql(direct_sql))
+        ) {
+          if (thd->is_error())
+          {
+            if (
+              direct_sql->error_rw_mode &&
+              spider_db_conn_is_network_error(error_num)
+            ) {
+              thd->clear_error();
+            } else {
+              SPIDER_BG_DIRECT_SQL *bg_direct_sql =
+                (SPIDER_BG_DIRECT_SQL *) direct_sql->parent;
+              pthread_mutex_lock(direct_sql->bg_mutex);
+              bg_direct_sql->bg_error = spider_stmt_da_sql_errno(thd);
+              strmov((char *) bg_direct_sql->bg_error_msg,
+                spider_stmt_da_message(thd));
+              pthread_mutex_unlock(direct_sql->bg_mutex);
+              is_error = TRUE;
+            }
+          }
+        }
+        if (direct_sql->modified_non_trans_table)
+        {
+          SPIDER_BG_DIRECT_SQL *bg_direct_sql =
+            (SPIDER_BG_DIRECT_SQL *) direct_sql->parent;
+          pthread_mutex_lock(direct_sql->bg_mutex);
+          bg_direct_sql->modified_non_trans_table = TRUE;
+          pthread_mutex_unlock(direct_sql->bg_mutex);
+        }
+        spider_udf_free_direct_sql_alloc(direct_sql, TRUE);
+      } while (!is_error && spider_bg_conn_get_job(conn));
+      if (is_error)
+      {
+        while (spider_bg_conn_get_job(conn))
+          spider_udf_free_direct_sql_alloc(
+            (SPIDER_DIRECT_SQL *) conn->bg_target, TRUE);
+      }
+      conn->bg_direct_sql = FALSE;
+      continue;
+    }
+    if (conn->bg_exec_sql)
+    {
+      DBUG_PRINT("info",("spider bg exec sql start"));
+      spider = (ha_spider*) conn->bg_target;
+      pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+      pthread_mutex_lock(&conn->mta_conn_mutex);
+      SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      conn->need_mon = &spider->need_mons[conn->link_idx];
+      DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = TRUE;
+      conn->mta_conn_mutex_unlock_later = TRUE;
+      *conn->bg_error_num = spider_db_query_with_set_names(
+        conn->bg_sql_type,
+        spider,
+        conn,
+        conn->link_idx
+      );
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      conn->bg_exec_sql = FALSE;
+      continue;
+    }
+    if (conn->bg_simple_action)
+    {
+      switch (conn->bg_simple_action)
+      {
+        case SPIDER_SIMPLE_CONNECT:
+          conn->db_conn->bg_connect();
+          break;
+        case SPIDER_SIMPLE_DISCONNECT:
+          conn->db_conn->bg_disconnect();
+          break;
+        default:
+          spider = (ha_spider*) conn->bg_target;
+          *conn->bg_error_num =
+            spider_db_simple_action(conn->bg_simple_action,
+              spider->dbton_handler[conn->dbton_id], conn->link_idx);
+          break;
+      }
+      conn->bg_simple_action = SPIDER_SIMPLE_NO_ACTION;
+      if (conn->bg_caller_wait)
+      {
+        pthread_mutex_lock(&conn->bg_conn_sync_mutex);
+        pthread_cond_signal(&conn->bg_conn_sync_cond);
+        pthread_mutex_unlock(&conn->bg_conn_sync_mutex);
+      }
+      continue;
+    }
+    if (conn->bg_break)
+    {
+      DBUG_PRINT("info",("spider bg break start"));
+      spider = (ha_spider*) conn->bg_target;
+      result_list = &spider->result_list;
+      result_list->bgs_working = FALSE;
+      continue;
+    }
+  }
+}
+
+int spider_create_sts_thread(
+  SPIDER_SHARE *share
+) {
+  int error_num;
+  DBUG_ENTER("spider_create_sts_thread");
+  if (!share->bg_sts_init)
+  {
+#if MYSQL_VERSION_ID < 50500
+    if (pthread_cond_init(&share->bg_sts_cond, NULL))
+#else
+    if (mysql_cond_init(spd_key_cond_bg_sts,
+      &share->bg_sts_cond, NULL))
+#endif
+    {
+      error_num = HA_ERR_OUT_OF_MEM;
+      goto error_cond_init;
+    }
+#if MYSQL_VERSION_ID < 50500
+    if (pthread_cond_init(&share->bg_sts_sync_cond, NULL))
+#else
+    if (mysql_cond_init(spd_key_cond_bg_sts_sync,
+      &share->bg_sts_sync_cond, NULL))
+#endif
+    {
+      error_num = HA_ERR_OUT_OF_MEM;
+      goto error_sync_cond_init;
+    }
+#if MYSQL_VERSION_ID < 50500
+    if (pthread_create(&share->bg_sts_thread, &spider_pt_attr,
+      spider_bg_sts_action, (void *) share)
+    )
+#else
+    if (mysql_thread_create(spd_key_thd_bg_sts, &share->bg_sts_thread,
+      &spider_pt_attr, spider_bg_sts_action, (void *) share)
+    )
+#endif
+    {
+      error_num = HA_ERR_OUT_OF_MEM;
+      goto error_thread_create;
+    }
+    share->bg_sts_init = TRUE;
+  }
+  DBUG_RETURN(0);
+
+error_thread_create:
+  pthread_cond_destroy(&share->bg_sts_sync_cond);
+error_sync_cond_init:
+  pthread_cond_destroy(&share->bg_sts_cond);
+error_cond_init:
+  DBUG_RETURN(error_num);
+}
+
+void spider_free_sts_thread(
+  SPIDER_SHARE *share
+) {
+  DBUG_ENTER("spider_free_sts_thread");
+  if (share->bg_sts_init)
+  {
+    pthread_mutex_lock(&share->sts_mutex);
+    share->bg_sts_kill = TRUE;
+    pthread_cond_signal(&share->bg_sts_cond);
+    pthread_cond_wait(&share->bg_sts_sync_cond, &share->sts_mutex);
+    pthread_mutex_unlock(&share->sts_mutex);
+    pthread_join(share->bg_sts_thread, NULL);
+    pthread_cond_destroy(&share->bg_sts_sync_cond);
+    pthread_cond_destroy(&share->bg_sts_cond);
+    share->bg_sts_thd_wait = FALSE;
+    share->bg_sts_kill = FALSE;
+    share->bg_sts_init = FALSE;
+  }
+  DBUG_VOID_RETURN;
+}
+
+void *spider_bg_sts_action(
+  void *arg
+) {
+  SPIDER_SHARE *share = (SPIDER_SHARE*) arg;
+  SPIDER_TRX *trx;
+  int error_num = 0, roop_count;
+  ha_spider spider;
+  SPIDER_WIDE_HANDLER wide_handler;
+  int *need_mons;
+  SPIDER_CONN **conns;
+  uint *conn_link_idx;
+  uchar *conn_can_fo;
+  char **conn_keys;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  char **hs_r_conn_keys;
+  char **hs_w_conn_keys;
+#endif
+  spider_db_handler **dbton_hdl;
+  THD *thd;
+  my_thread_init();
+  DBUG_ENTER("spider_bg_sts_action");
+  /* init start */
+  char *ptr;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  ptr = (char *) my_alloca(
+    (sizeof(int) * share->link_count) +
+    (sizeof(SPIDER_CONN *) * share->link_count) +
+    (sizeof(uint) * share->link_count) +
+    (sizeof(uchar) * share->link_bitmap_size) +
+    (sizeof(char *) * share->link_count) +
+    (sizeof(char *) * share->link_count) +
+    (sizeof(char *) * share->link_count) +
+    (sizeof(spider_db_handler *) * SPIDER_DBTON_SIZE));
+#else
+  ptr = (char *) my_alloca(
+    (sizeof(int) * share->link_count) +
+    (sizeof(SPIDER_CONN *) * share->link_count) +
+    (sizeof(uint) * share->link_count) +
+    (sizeof(uchar) * share->link_bitmap_size) +
+    (sizeof(char *) * share->link_count) +
+    (sizeof(spider_db_handler *) * SPIDER_DBTON_SIZE));
+#endif
+  if (!ptr)
+  {
+    pthread_mutex_lock(&share->sts_mutex);
+    share->bg_sts_thd_wait = FALSE;
+    share->bg_sts_kill = FALSE;
+    share->bg_sts_init = FALSE;
+    pthread_mutex_unlock(&share->sts_mutex);
+    my_thread_end();
+    DBUG_RETURN(NULL);
+  }
+  need_mons = (int *) ptr;
+  ptr += (sizeof(int) * share->link_count);
+  conns = (SPIDER_CONN **) ptr;
+  ptr += (sizeof(SPIDER_CONN *) * share->link_count);
+  conn_link_idx = (uint *) ptr;
+  ptr += (sizeof(uint) * share->link_count);
+  conn_can_fo = (uchar *) ptr;
+  ptr += (sizeof(uchar) * share->link_bitmap_size);
+  conn_keys = (char **) ptr;
+  ptr += (sizeof(char *) * share->link_count);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  hs_r_conn_keys = (char **) ptr;
+  ptr += (sizeof(char *) * share->link_count);
+  hs_w_conn_keys = (char **) ptr;
+  ptr += (sizeof(char *) * share->link_count);
+#endif
+  dbton_hdl = (spider_db_handler **) ptr;
+  pthread_mutex_lock(&share->sts_mutex);
+  if (!(thd = SPIDER_new_THD(next_thread_id())))
+  {
+    share->bg_sts_thd_wait = FALSE;
+    share->bg_sts_kill = FALSE;
+    share->bg_sts_init = FALSE;
+    pthread_mutex_unlock(&share->sts_mutex);
+    my_thread_end();
+    my_afree(need_mons);
+    DBUG_RETURN(NULL);
+  }
+  SPIDER_set_next_thread_id(thd);
+#ifdef HAVE_PSI_INTERFACE
+  mysql_thread_set_psi_id(thd->thread_id);
+#endif
+  thd->thread_stack = (char*) &thd;
+  thd->store_globals();
+  if (!(trx = spider_get_trx(thd, FALSE, &error_num)))
+  {
+    delete thd;
+    share->bg_sts_thd_wait = FALSE;
+    share->bg_sts_kill = FALSE;
+    share->bg_sts_init = FALSE;
+    pthread_mutex_unlock(&share->sts_mutex);
+#if !defined(MYSQL_DYNAMIC_PLUGIN) || !defined(_WIN32)
+    set_current_thd(nullptr);
+#endif
+    my_thread_end();
+    my_afree(need_mons);
+    DBUG_RETURN(NULL);
+  }
+  share->bg_sts_thd = thd;
+  spider.wide_handler = &wide_handler;
+  wide_handler.trx = trx;
+  spider.share = share;
+  spider.conns = conns;
+  spider.conn_link_idx = conn_link_idx;
+  spider.conn_can_fo = conn_can_fo;
+  spider.need_mons = need_mons;
+  spider.conn_keys_first_ptr = share->conn_keys[0];
+  spider.conn_keys = conn_keys;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  spider.hs_r_conn_keys = hs_r_conn_keys;
+  spider.hs_w_conn_keys = hs_w_conn_keys;
+#endif
+  spider.dbton_handler = dbton_hdl;
+  memset(conns, 0, sizeof(SPIDER_CONN *) * share->link_count);
+  memset(need_mons, 0, sizeof(int) * share->link_count);
+  memset(dbton_hdl, 0, sizeof(spider_db_handler *) * SPIDER_DBTON_SIZE);
+  spider_trx_set_link_idx_for_all(&spider);
+  spider.search_link_idx = spider_conn_first_link_idx(thd,
+    share->link_statuses, share->access_balances, spider.conn_link_idx,
+    share->link_count, SPIDER_LINK_STATUS_OK);
+  for (roop_count = 0; roop_count < SPIDER_DBTON_SIZE; roop_count++)
+  {
+    if (
+      spider_bit_is_set(share->dbton_bitmap, roop_count) &&
+      spider_dbton[roop_count].create_db_handler
+    ) {
+      if (!(dbton_hdl[roop_count] = spider_dbton[roop_count].create_db_handler(
+        &spider, share->dbton_share[roop_count])))
+        break;
+      if (dbton_hdl[roop_count]->init())
+        break;
+    }
+  }
+  if (roop_count < SPIDER_DBTON_SIZE)
+  {
+    DBUG_PRINT("info",("spider handler init error"));
+    for (roop_count = SPIDER_DBTON_SIZE - 1; roop_count >= 0; --roop_count)
+    {
+      if (
+        spider_bit_is_set(share->dbton_bitmap, roop_count) &&
+        dbton_hdl[roop_count]
+      ) {
+        delete dbton_hdl[roop_count];
+        dbton_hdl[roop_count] = NULL;
+      }
+    }
+    spider_free_trx(trx, TRUE);
+    delete thd;
+    share->bg_sts_thd_wait = FALSE;
+    share->bg_sts_kill = FALSE;
+    share->bg_sts_init = FALSE;
+    pthread_mutex_unlock(&share->sts_mutex);
+#if !defined(MYSQL_DYNAMIC_PLUGIN) || !defined(_WIN32)
+    set_current_thd(nullptr);
+#endif
+    my_thread_end();
+    my_afree(need_mons);
+    DBUG_RETURN(NULL);
+  }
+  /* init end */
+
+  while (TRUE)
+  {
+    DBUG_PRINT("info",("spider bg sts roop start"));
+    if (share->bg_sts_kill)
+    {
+      DBUG_PRINT("info",("spider bg sts kill start"));
+      for (roop_count = SPIDER_DBTON_SIZE - 1; roop_count >= 0; --roop_count)
+      {
+        if (
+          spider_bit_is_set(share->dbton_bitmap, roop_count) &&
+          dbton_hdl[roop_count]
+        ) {
+          delete dbton_hdl[roop_count];
+          dbton_hdl[roop_count] = NULL;
+        }
+      }
+      spider_free_trx(trx, TRUE);
+      delete thd;
+      pthread_cond_signal(&share->bg_sts_sync_cond);
+      pthread_mutex_unlock(&share->sts_mutex);
+#if !defined(MYSQL_DYNAMIC_PLUGIN) || !defined(_WIN32)
+      set_current_thd(nullptr);
+#endif
+      my_thread_end();
+      my_afree(need_mons);
+      DBUG_RETURN(NULL);
+    }
+    if (spider.search_link_idx < 0)
+    {
+      spider_trx_set_link_idx_for_all(&spider);
+/*
+      spider.search_link_idx = spider_conn_next_link_idx(
+        thd, share->link_statuses, share->access_balances,
+        spider.conn_link_idx, spider.search_link_idx, share->link_count,
+        SPIDER_LINK_STATUS_OK);
+*/
+      spider.search_link_idx = spider_conn_first_link_idx(thd,
+        share->link_statuses, share->access_balances, spider.conn_link_idx,
+        share->link_count, SPIDER_LINK_STATUS_OK);
+    }
+    if (spider.search_link_idx >= 0)
+    {
+      if (difftime(share->bg_sts_try_time, share->sts_get_time) >=
+        share->bg_sts_interval)
+      {
+        if (!conns[spider.search_link_idx])
+        {
+          spider_get_conn(share, spider.search_link_idx,
+            share->conn_keys[spider.search_link_idx],
+            trx, &spider, FALSE, FALSE, SPIDER_CONN_KIND_MYSQL,
+            &error_num);
+          conns[spider.search_link_idx]->error_mode = 0;
+/*
+          if (
+            error_num &&
+            share->monitoring_kind[spider.search_link_idx] &&
+            need_mons[spider.search_link_idx]
+          ) {
+            lex_start(thd);
+            error_num = spider_ping_table_mon_from_table(
+                trx,
+                thd,
+                share,
+                spider.search_link_idx,
+                (uint32) share->monitoring_sid[spider.search_link_idx],
+                share->table_name,
+                share->table_name_length,
+                spider.conn_link_idx[spider.search_link_idx],
+                NULL,
+                0,
+                share->monitoring_kind[spider.search_link_idx],
+                share->monitoring_limit[spider.search_link_idx],
+                share->monitoring_flag[spider.search_link_idx],
+                TRUE
+              );
+            lex_end(thd->lex);
+          }
+*/
+          spider.search_link_idx = -1;
+        }
+        if (spider.search_link_idx != -1 && conns[spider.search_link_idx])
+        {
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+          if (spider_get_sts(share, spider.search_link_idx,
+            share->bg_sts_try_time, &spider,
+            share->bg_sts_interval, share->bg_sts_mode,
+            share->bg_sts_sync,
+            2, HA_STATUS_CONST | HA_STATUS_VARIABLE))
+#else
+          if (spider_get_sts(share, spider.search_link_idx,
+            share->bg_sts_try_time, &spider,
+            share->bg_sts_interval, share->bg_sts_mode,
+            2, HA_STATUS_CONST | HA_STATUS_VARIABLE))
+#endif
+          {
+/*
+            if (
+              share->monitoring_kind[spider.search_link_idx] &&
+              need_mons[spider.search_link_idx]
+            ) {
+              lex_start(thd);
+              error_num = spider_ping_table_mon_from_table(
+                  trx,
+                  thd,
+                  share,
+                  spider.search_link_idx,
+                  (uint32) share->monitoring_sid[spider.search_link_idx],
+                  share->table_name,
+                  share->table_name_length,
+                  spider.conn_link_idx[spider.search_link_idx],
+                  NULL,
+                  0,
+                  share->monitoring_kind[spider.search_link_idx],
+                  share->monitoring_limit[spider.search_link_idx],
+                  share->monitoring_flag[spider.search_link_idx],
+                  TRUE
+                );
+              lex_end(thd->lex);
+            }
+*/
+            spider.search_link_idx = -1;
+          }
+        }
+      }
+    }
+    memset(need_mons, 0, sizeof(int) * share->link_count);
+    share->bg_sts_thd_wait = TRUE;
+    pthread_cond_wait(&share->bg_sts_cond, &share->sts_mutex);
+  }
+}
+
+int spider_create_crd_thread(
+  SPIDER_SHARE *share
+) {
+  int error_num;
+  DBUG_ENTER("spider_create_crd_thread");
+  if (!share->bg_crd_init)
+  {
+#if MYSQL_VERSION_ID < 50500
+    if (pthread_cond_init(&share->bg_crd_cond, NULL))
+#else
+    if (mysql_cond_init(spd_key_cond_bg_crd,
+      &share->bg_crd_cond, NULL))
+#endif
+    {
+      error_num = HA_ERR_OUT_OF_MEM;
+      goto error_cond_init;
+    }
+#if MYSQL_VERSION_ID < 50500
+    if (pthread_cond_init(&share->bg_crd_sync_cond, NULL))
+#else
+    if (mysql_cond_init(spd_key_cond_bg_crd_sync,
+      &share->bg_crd_sync_cond, NULL))
+#endif
+    {
+      error_num = HA_ERR_OUT_OF_MEM;
+      goto error_sync_cond_init;
+    }
+#if MYSQL_VERSION_ID < 50500
+    if (pthread_create(&share->bg_crd_thread, &spider_pt_attr,
+      spider_bg_crd_action, (void *) share)
+    )
+#else
+    if (mysql_thread_create(spd_key_thd_bg_crd, &share->bg_crd_thread,
+      &spider_pt_attr, spider_bg_crd_action, (void *) share)
+    )
+#endif
+    {
+      error_num = HA_ERR_OUT_OF_MEM;
+      goto error_thread_create;
+    }
+    share->bg_crd_init = TRUE;
+  }
+  DBUG_RETURN(0);
+
+error_thread_create:
+  pthread_cond_destroy(&share->bg_crd_sync_cond);
+error_sync_cond_init:
+  pthread_cond_destroy(&share->bg_crd_cond);
+error_cond_init:
+  DBUG_RETURN(error_num);
+}
+
+void spider_free_crd_thread(
+  SPIDER_SHARE *share
+) {
+  DBUG_ENTER("spider_free_crd_thread");
+  if (share->bg_crd_init)
+  {
+    pthread_mutex_lock(&share->crd_mutex);
+    share->bg_crd_kill = TRUE;
+    pthread_cond_signal(&share->bg_crd_cond);
+    pthread_cond_wait(&share->bg_crd_sync_cond, &share->crd_mutex);
+    pthread_mutex_unlock(&share->crd_mutex);
+    pthread_join(share->bg_crd_thread, NULL);
+    pthread_cond_destroy(&share->bg_crd_sync_cond);
+    pthread_cond_destroy(&share->bg_crd_cond);
+    share->bg_crd_thd_wait = FALSE;
+    share->bg_crd_kill = FALSE;
+    share->bg_crd_init = FALSE;
+  }
+  DBUG_VOID_RETURN;
+}
+
+void *spider_bg_crd_action(
+  void *arg
+) {
+  SPIDER_SHARE *share = (SPIDER_SHARE*) arg;
+  SPIDER_TRX *trx;
+  int error_num = 0, roop_count;
+  ha_spider spider;
+  SPIDER_WIDE_HANDLER wide_handler;
+  TABLE table;
+  int *need_mons;
+  SPIDER_CONN **conns;
+  uint *conn_link_idx;
+  uchar *conn_can_fo;
+  char **conn_keys;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  char **hs_r_conn_keys;
+  char **hs_w_conn_keys;
+#endif
+  spider_db_handler **dbton_hdl;
+  THD *thd;
+  my_thread_init();
+  DBUG_ENTER("spider_bg_crd_action");
+  /* init start */
+  char *ptr;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  ptr = (char *) my_alloca(
+    (sizeof(int) * share->link_count) +
+    (sizeof(SPIDER_CONN *) * share->link_count) +
+    (sizeof(uint) * share->link_count) +
+    (sizeof(uchar) * share->link_bitmap_size) +
+    (sizeof(char *) * share->link_count) +
+    (sizeof(char *) * share->link_count) +
+    (sizeof(char *) * share->link_count) +
+    (sizeof(spider_db_handler *) * SPIDER_DBTON_SIZE));
+#else
+  ptr = (char *) my_alloca(
+    (sizeof(int) * share->link_count) +
+    (sizeof(SPIDER_CONN *) * share->link_count) +
+    (sizeof(uint) * share->link_count) +
+    (sizeof(uchar) * share->link_bitmap_size) +
+    (sizeof(char *) * share->link_count) +
+    (sizeof(spider_db_handler *) * SPIDER_DBTON_SIZE));
+#endif
+  if (!ptr)
+  {
+    pthread_mutex_lock(&share->crd_mutex);
+    share->bg_crd_thd_wait = FALSE;
+    share->bg_crd_kill = FALSE;
+    share->bg_crd_init = FALSE;
+    pthread_mutex_unlock(&share->crd_mutex);
+    my_thread_end();
+    DBUG_RETURN(NULL);
+  }
+  need_mons = (int *) ptr;
+  ptr += (sizeof(int) * share->link_count);
+  conns = (SPIDER_CONN **) ptr;
+  ptr += (sizeof(SPIDER_CONN *) * share->link_count);
+  conn_link_idx = (uint *) ptr;
+  ptr += (sizeof(uint) * share->link_count);
+  conn_can_fo = (uchar *) ptr;
+  ptr += (sizeof(uchar) * share->link_bitmap_size);
+  conn_keys = (char **) ptr;
+  ptr += (sizeof(char *) * share->link_count);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  hs_r_conn_keys = (char **) ptr;
+  ptr += (sizeof(char *) * share->link_count);
+  hs_w_conn_keys = (char **) ptr;
+  ptr += (sizeof(char *) * share->link_count);
+#endif
+  dbton_hdl = (spider_db_handler **) ptr;
+  pthread_mutex_lock(&share->crd_mutex);
+  if (!(thd = SPIDER_new_THD(next_thread_id())))
+  {
+    share->bg_crd_thd_wait = FALSE;
+    share->bg_crd_kill = FALSE;
+    share->bg_crd_init = FALSE;
+    pthread_mutex_unlock(&share->crd_mutex);
+    my_thread_end();
+    my_afree(need_mons);
+    DBUG_RETURN(NULL);
+  }
+  SPIDER_set_next_thread_id(thd);
+#ifdef HAVE_PSI_INTERFACE
+  mysql_thread_set_psi_id(thd->thread_id);
+#endif
+  thd->thread_stack = (char*) &thd;
+  thd->store_globals();
+  if (!(trx = spider_get_trx(thd, FALSE, &error_num)))
+  {
+    delete thd;
+    share->bg_crd_thd_wait = FALSE;
+    share->bg_crd_kill = FALSE;
+    share->bg_crd_init = FALSE;
+    pthread_mutex_unlock(&share->crd_mutex);
+#if !defined(MYSQL_DYNAMIC_PLUGIN) || !defined(_WIN32)
+    set_current_thd(nullptr);
+#endif
+    my_thread_end();
+    my_afree(need_mons);
+    DBUG_RETURN(NULL);
+  }
+  share->bg_crd_thd = thd;
+  table.s = share->table_share;
+  table.field = share->table_share->field;
+  table.key_info = share->table_share->key_info;
+  spider.wide_handler = &wide_handler;
+  wide_handler.trx = trx;
+  spider.change_table_ptr(&table, share->table_share);
+  spider.share = share;
+  spider.conns = conns;
+  spider.conn_link_idx = conn_link_idx;
+  spider.conn_can_fo = conn_can_fo;
+  spider.need_mons = need_mons;
+  spider.conn_keys_first_ptr = share->conn_keys[0];
+  spider.conn_keys = conn_keys;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  spider.hs_r_conn_keys = hs_r_conn_keys;
+  spider.hs_w_conn_keys = hs_w_conn_keys;
+#endif
+  spider.dbton_handler = dbton_hdl;
+  memset(conns, 0, sizeof(SPIDER_CONN *) * share->link_count);
+  memset(need_mons, 0, sizeof(int) * share->link_count);
+  memset(dbton_hdl, 0, sizeof(spider_db_handler *) * SPIDER_DBTON_SIZE);
+  spider_trx_set_link_idx_for_all(&spider);
+  spider.search_link_idx = spider_conn_first_link_idx(thd,
+    share->link_statuses, share->access_balances, spider.conn_link_idx,
+    share->link_count, SPIDER_LINK_STATUS_OK);
+  for (roop_count = 0; roop_count < SPIDER_DBTON_SIZE; roop_count++)
+  {
+    if (
+      spider_bit_is_set(share->dbton_bitmap, roop_count) &&
+      spider_dbton[roop_count].create_db_handler
+    ) {
+      if (!(dbton_hdl[roop_count] = spider_dbton[roop_count].create_db_handler(
+        &spider, share->dbton_share[roop_count])))
+        break;
+      if (dbton_hdl[roop_count]->init())
+        break;
+    }
+  }
+  if (roop_count < SPIDER_DBTON_SIZE)
+  {
+    DBUG_PRINT("info",("spider handler init error"));
+    for (roop_count = SPIDER_DBTON_SIZE - 1; roop_count >= 0; --roop_count)
+    {
+      if (
+        spider_bit_is_set(share->dbton_bitmap, roop_count) &&
+        dbton_hdl[roop_count]
+      ) {
+        delete dbton_hdl[roop_count];
+        dbton_hdl[roop_count] = NULL;
+      }
+    }
+    spider_free_trx(trx, TRUE);
+    delete thd;
+    share->bg_crd_thd_wait = FALSE;
+    share->bg_crd_kill = FALSE;
+    share->bg_crd_init = FALSE;
+    pthread_mutex_unlock(&share->crd_mutex);
+#if !defined(MYSQL_DYNAMIC_PLUGIN) || !defined(_WIN32)
+    set_current_thd(nullptr);
+#endif
+    my_thread_end();
+    my_afree(need_mons);
+    DBUG_RETURN(NULL);
+  }
+  /* init end */
+
+  while (TRUE)
+  {
+    DBUG_PRINT("info",("spider bg crd roop start"));
+    if (share->bg_crd_kill)
+    {
+      DBUG_PRINT("info",("spider bg crd kill start"));
+      for (roop_count = SPIDER_DBTON_SIZE - 1; roop_count >= 0; --roop_count)
+      {
+        if (
+          spider_bit_is_set(share->dbton_bitmap, roop_count) &&
+          dbton_hdl[roop_count]
+        ) {
+          delete dbton_hdl[roop_count];
+          dbton_hdl[roop_count] = NULL;
+        }
+      }
+      spider_free_trx(trx, TRUE);
+      delete thd;
+      pthread_cond_signal(&share->bg_crd_sync_cond);
+      pthread_mutex_unlock(&share->crd_mutex);
+#if !defined(MYSQL_DYNAMIC_PLUGIN) || !defined(_WIN32)
+      set_current_thd(nullptr);
+#endif
+      my_thread_end();
+      my_afree(need_mons);
+      DBUG_RETURN(NULL);
+    }
+    if (spider.search_link_idx < 0)
+    {
+      spider_trx_set_link_idx_for_all(&spider);
+/*
+      spider.search_link_idx = spider_conn_next_link_idx(
+        thd, share->link_statuses, share->access_balances,
+        spider.conn_link_idx, spider.search_link_idx, share->link_count,
+        SPIDER_LINK_STATUS_OK);
+*/
+      spider.search_link_idx = spider_conn_first_link_idx(thd,
+        share->link_statuses, share->access_balances, spider.conn_link_idx,
+        share->link_count, SPIDER_LINK_STATUS_OK);
+    }
+    if (spider.search_link_idx >= 0)
+    {
+      if (difftime(share->bg_crd_try_time, share->crd_get_time) >=
+        share->bg_crd_interval)
+      {
+        if (!conns[spider.search_link_idx])
+        {
+          spider_get_conn(share, spider.search_link_idx,
+            share->conn_keys[spider.search_link_idx],
+            trx, &spider, FALSE, FALSE, SPIDER_CONN_KIND_MYSQL,
+            &error_num);
+          conns[spider.search_link_idx]->error_mode = 0;
+/*
+          if (
+            error_num &&
+            share->monitoring_kind[spider.search_link_idx] &&
+            need_mons[spider.search_link_idx]
+          ) {
+            lex_start(thd);
+            error_num = spider_ping_table_mon_from_table(
+                trx,
+                thd,
+                share,
+                spider.search_link_idx,
+                (uint32) share->monitoring_sid[spider.search_link_idx],
+                share->table_name,
+                share->table_name_length,
+                spider.conn_link_idx[spider.search_link_idx],
+                NULL,
+                0,
+                share->monitoring_kind[spider.search_link_idx],
+                share->monitoring_limit[spider.search_link_idx],
+                share->monitoring_flag[spider.search_link_idx],
+                TRUE
+              );
+            lex_end(thd->lex);
+          }
+*/
+          spider.search_link_idx = -1;
+        }
+        if (spider.search_link_idx != -1 && conns[spider.search_link_idx])
+        {
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+          if (spider_get_crd(share, spider.search_link_idx,
+            share->bg_crd_try_time, &spider, &table,
+            share->bg_crd_interval, share->bg_crd_mode,
+            share->bg_crd_sync,
+            2))
+#else
+          if (spider_get_crd(share, spider.search_link_idx,
+            share->bg_crd_try_time, &spider, &table,
+            share->bg_crd_interval, share->bg_crd_mode,
+            2))
+#endif
+          {
+/*
+            if (
+              share->monitoring_kind[spider.search_link_idx] &&
+              need_mons[spider.search_link_idx]
+            ) {
+              lex_start(thd);
+              error_num = spider_ping_table_mon_from_table(
+                  trx,
+                  thd,
+                  share,
+                  spider.search_link_idx,
+                  (uint32) share->monitoring_sid[spider.search_link_idx],
+                  share->table_name,
+                  share->table_name_length,
+                  spider.conn_link_idx[spider.search_link_idx],
+                  NULL,
+                  0,
+                  share->monitoring_kind[spider.search_link_idx],
+                  share->monitoring_limit[spider.search_link_idx],
+                  share->monitoring_flag[spider.search_link_idx],
+                  TRUE
+                );
+              lex_end(thd->lex);
+            }
+*/
+            spider.search_link_idx = -1;
+          }
+        }
+      }
+    }
+    memset(need_mons, 0, sizeof(int) * share->link_count);
+    share->bg_crd_thd_wait = TRUE;
+    pthread_cond_wait(&share->bg_crd_cond, &share->crd_mutex);
+  }
+}
+
+int spider_create_mon_threads(
+  SPIDER_TRX *trx,
+  SPIDER_SHARE *share
+) {
+  bool create_bg_mons = FALSE;
+  int error_num, roop_count, roop_count2;
+  SPIDER_LINK_PACK link_pack;
+  SPIDER_TABLE_MON_LIST *table_mon_list;
+  DBUG_ENTER("spider_create_mon_threads");
+  if (!share->bg_mon_init)
+  {
+    for (roop_count = 0; roop_count < (int) share->all_link_count;
+      roop_count++)
+    {
+      if (share->monitoring_bg_kind[roop_count])
+      {
+        create_bg_mons = TRUE;
+        break;
+      }
+    }
+    if (create_bg_mons)
+    {
+      char link_idx_str[SPIDER_SQL_INT_LEN];
+      int link_idx_str_length;
+      char *buf = (char *) my_alloca(share->table_name_length + SPIDER_SQL_INT_LEN + 1);
+      spider_string conv_name_str(buf, share->table_name_length +
+        SPIDER_SQL_INT_LEN + 1, system_charset_info);
+      conv_name_str.init_calc_mem(105);
+      conv_name_str.length(0);
+      conv_name_str.q_append(share->table_name, share->table_name_length);
+      for (roop_count = 0; roop_count < (int) share->all_link_count;
+        roop_count++)
+      {
+        if (share->monitoring_bg_kind[roop_count])
+        {
+          conv_name_str.length(share->table_name_length);
+          if (share->static_link_ids[roop_count])
+          {
+            memcpy(link_idx_str, share->static_link_ids[roop_count],
+              share->static_link_ids_lengths[roop_count] + 1);
+            link_idx_str_length = share->static_link_ids_lengths[roop_count];
+          } else {
+            link_idx_str_length = my_sprintf(link_idx_str, (link_idx_str,
+              "%010d", roop_count));
+          }
+          conv_name_str.q_append(link_idx_str, link_idx_str_length + 1);
+          conv_name_str.length(conv_name_str.length() - 1);
+          if (!(table_mon_list = spider_get_ping_table_mon_list(trx, trx->thd,
+            &conv_name_str, share->table_name_length, roop_count,
+            share->static_link_ids[roop_count],
+            share->static_link_ids_lengths[roop_count],
+            (uint32) share->monitoring_sid[roop_count], FALSE, &error_num)))
+          {
+            my_afree(buf);
+            goto error_get_ping_table_mon_list;
+          }
+          spider_free_ping_table_mon_list(table_mon_list);
+        }
+      }
+      if (!(share->bg_mon_thds = (THD **)
+        spider_bulk_malloc(spider_current_trx, 23, MYF(MY_WME | MY_ZEROFILL),
+          &share->bg_mon_thds,
+            (uint) (sizeof(THD *) * share->all_link_count),
+          &share->bg_mon_threads,
+            (uint) (sizeof(pthread_t) * share->all_link_count),
+          &share->bg_mon_mutexes,
+            (uint) (sizeof(pthread_mutex_t) * share->all_link_count),
+          &share->bg_mon_conds,
+            (uint) (sizeof(pthread_cond_t) * share->all_link_count),
+          &share->bg_mon_sleep_conds,
+            (uint) (sizeof(pthread_cond_t) * share->all_link_count),
+          NullS))
+      ) {
+        error_num = HA_ERR_OUT_OF_MEM;
+        my_afree(buf);
+        goto error_alloc_base;
+      }
+      for (roop_count = 0; roop_count < (int) share->all_link_count;
+        roop_count++)
+      {
+        if (
+          share->monitoring_bg_kind[roop_count] &&
+#if MYSQL_VERSION_ID < 50500
+          pthread_mutex_init(&share->bg_mon_mutexes[roop_count],
+            MY_MUTEX_INIT_FAST)
+#else
+          mysql_mutex_init(spd_key_mutex_bg_mon,
+            &share->bg_mon_mutexes[roop_count], MY_MUTEX_INIT_FAST)
+#endif
+        ) {
+          error_num = HA_ERR_OUT_OF_MEM;
+          my_afree(buf);
+          goto error_mutex_init;
+        }
+      }
+      for (roop_count = 0; roop_count < (int) share->all_link_count;
+        roop_count++)
+      {
+        if (
+          share->monitoring_bg_kind[roop_count] &&
+#if MYSQL_VERSION_ID < 50500
+          pthread_cond_init(&share->bg_mon_conds[roop_count], NULL)
+#else
+          mysql_cond_init(spd_key_cond_bg_mon,
+            &share->bg_mon_conds[roop_count], NULL)
+#endif
+        ) {
+          error_num = HA_ERR_OUT_OF_MEM;
+          my_afree(buf);
+          goto error_cond_init;
+        }
+      }
+      for (roop_count = 0; roop_count < (int) share->all_link_count;
+        roop_count++)
+      {
+        if (
+          share->monitoring_bg_kind[roop_count] &&
+#if MYSQL_VERSION_ID < 50500
+          pthread_cond_init(&share->bg_mon_sleep_conds[roop_count], NULL)
+#else
+          mysql_cond_init(spd_key_cond_bg_mon_sleep,
+            &share->bg_mon_sleep_conds[roop_count], NULL)
+#endif
+        ) {
+          error_num = HA_ERR_OUT_OF_MEM;
+          my_afree(buf);
+          goto error_sleep_cond_init;
+        }
+      }
+      link_pack.share = share;
+      for (roop_count = 0; roop_count < (int) share->all_link_count;
+        roop_count++)
+      {
+        if (share->monitoring_bg_kind[roop_count])
+        {
+          link_pack.link_idx = roop_count;
+          pthread_mutex_lock(&share->bg_mon_mutexes[roop_count]);
+#if MYSQL_VERSION_ID < 50500
+          if (pthread_create(&share->bg_mon_threads[roop_count],
+            &spider_pt_attr, spider_bg_mon_action, (void *) &link_pack)
+          )
+#else
+          if (mysql_thread_create(spd_key_thd_bg_mon,
+            &share->bg_mon_threads[roop_count], &spider_pt_attr,
+            spider_bg_mon_action, (void *) &link_pack)
+          )
+#endif
+          {
+            error_num = HA_ERR_OUT_OF_MEM;
+            my_afree(buf);
+            goto error_thread_create;
+          }
+          pthread_cond_wait(&share->bg_mon_conds[roop_count],
+            &share->bg_mon_mutexes[roop_count]);
+          pthread_mutex_unlock(&share->bg_mon_mutexes[roop_count]);
+        }
+      }
+      share->bg_mon_init = TRUE;
+      my_afree(buf);
+    }
+  }
+  DBUG_RETURN(0);
+
+error_thread_create:
+  roop_count2 = roop_count;
+  for (roop_count--; roop_count >= 0; roop_count--)
+  {
+    if (share->monitoring_bg_kind[roop_count])
+      pthread_mutex_lock(&share->bg_mon_mutexes[roop_count]);
+  }
+  share->bg_mon_kill = TRUE;
+  for (roop_count = roop_count2 - 1; roop_count >= 0; roop_count--)
+  {
+    if (share->monitoring_bg_kind[roop_count])
+    {
+      pthread_cond_wait(&share->bg_mon_conds[roop_count],
+        &share->bg_mon_mutexes[roop_count]);
+      pthread_mutex_unlock(&share->bg_mon_mutexes[roop_count]);
+    }
+  }
+  share->bg_mon_kill = FALSE;
+  roop_count = share->all_link_count;
+error_sleep_cond_init:
+  for (roop_count--; roop_count >= 0; roop_count--)
+  {
+    if (share->monitoring_bg_kind[roop_count])
+      pthread_cond_destroy(&share->bg_mon_sleep_conds[roop_count]);
+  }
+  roop_count = share->all_link_count;
+error_cond_init:
+  for (roop_count--; roop_count >= 0; roop_count--)
+  {
+    if (share->monitoring_bg_kind[roop_count])
+      pthread_cond_destroy(&share->bg_mon_conds[roop_count]);
+  }
+  roop_count = share->all_link_count;
+error_mutex_init:
+  for (roop_count--; roop_count >= 0; roop_count--)
+  {
+    if (share->monitoring_bg_kind[roop_count])
+      pthread_mutex_destroy(&share->bg_mon_mutexes[roop_count]);
+  }
+  spider_free(spider_current_trx, share->bg_mon_thds, MYF(0));
+error_alloc_base:
+error_get_ping_table_mon_list:
+  DBUG_RETURN(error_num);
+}
+
+void spider_free_mon_threads(
+  SPIDER_SHARE *share
+) {
+  int roop_count;
+  DBUG_ENTER("spider_free_mon_threads");
+  if (share->bg_mon_init)
+  {
+    for (roop_count = 0; roop_count < (int) share->all_link_count;
+      roop_count++)
+    {
+      if (
+        share->monitoring_bg_kind[roop_count] &&
+        share->bg_mon_thds[roop_count]
+      ) {
+        share->bg_mon_thds[roop_count]->killed = SPIDER_THD_KILL_CONNECTION;
+      }
+    }
+    for (roop_count = 0; roop_count < (int) share->all_link_count;
+      roop_count++)
+    {
+      if (share->monitoring_bg_kind[roop_count])
+        pthread_mutex_lock(&share->bg_mon_mutexes[roop_count]);
+    }
+    share->bg_mon_kill = TRUE;
+    for (roop_count = 0; roop_count < (int) share->all_link_count;
+      roop_count++)
+    {
+      if (share->monitoring_bg_kind[roop_count])
+      {
+        pthread_cond_signal(&share->bg_mon_sleep_conds[roop_count]);
+        pthread_cond_wait(&share->bg_mon_conds[roop_count],
+          &share->bg_mon_mutexes[roop_count]);
+        pthread_mutex_unlock(&share->bg_mon_mutexes[roop_count]);
+        pthread_join(share->bg_mon_threads[roop_count], NULL);
+        pthread_cond_destroy(&share->bg_mon_conds[roop_count]);
+        pthread_cond_destroy(&share->bg_mon_sleep_conds[roop_count]);
+        pthread_mutex_destroy(&share->bg_mon_mutexes[roop_count]);
+      }
+    }
+    spider_free(spider_current_trx, share->bg_mon_thds, MYF(0));
+    share->bg_mon_kill = FALSE;
+    share->bg_mon_init = FALSE;
+  }
+  DBUG_VOID_RETURN;
+}
+
+void *spider_bg_mon_action(
+  void *arg
+) {
+  SPIDER_LINK_PACK *link_pack = (SPIDER_LINK_PACK*) arg;
+  SPIDER_SHARE *share = link_pack->share;
+  SPIDER_TRX *trx;
+  int error_num, link_idx = link_pack->link_idx;
+  THD *thd;
+  my_thread_init();
+  DBUG_ENTER("spider_bg_mon_action");
+  /* init start */
+  pthread_mutex_lock(&share->bg_mon_mutexes[link_idx]);
+  if (!(thd = SPIDER_new_THD(next_thread_id())))
+  {
+    share->bg_mon_kill = FALSE;
+    share->bg_mon_init = FALSE;
+    pthread_cond_signal(&share->bg_mon_conds[link_idx]);
+    pthread_mutex_unlock(&share->bg_mon_mutexes[link_idx]);
+    my_thread_end();
+    DBUG_RETURN(NULL);
+  }
+  SPIDER_set_next_thread_id(thd);
+#ifdef HAVE_PSI_INTERFACE
+  mysql_thread_set_psi_id(thd->thread_id);
+#endif
+  thd->thread_stack = (char*) &thd;
+  thd->store_globals();
+  if (!(trx = spider_get_trx(thd, FALSE, &error_num)))
+  {
+    delete thd;
+    share->bg_mon_kill = FALSE;
+    share->bg_mon_init = FALSE;
+    pthread_cond_signal(&share->bg_mon_conds[link_idx]);
+    pthread_mutex_unlock(&share->bg_mon_mutexes[link_idx]);
+#if !defined(MYSQL_DYNAMIC_PLUGIN) || !defined(_WIN32)
+    set_current_thd(nullptr);
+#endif
+    my_thread_end();
+    DBUG_RETURN(NULL);
+  }
+  share->bg_mon_thds[link_idx] = thd;
+  pthread_cond_signal(&share->bg_mon_conds[link_idx]);
+/*
+  pthread_mutex_unlock(&share->bg_mon_mutexes[link_idx]);
+*/
+  /* init end */
+
+  while (TRUE)
+  {
+    DBUG_PRINT("info",("spider bg mon sleep %lld",
+      share->monitoring_bg_interval[link_idx]));
+    if (!share->bg_mon_kill)
+    {
+      struct timespec abstime;
+      set_timespec_nsec(abstime,
+        share->monitoring_bg_interval[link_idx] * 1000);
+      pthread_cond_timedwait(&share->bg_mon_sleep_conds[link_idx],
+        &share->bg_mon_mutexes[link_idx], &abstime);
+/*
+      my_sleep((ulong) share->monitoring_bg_interval[link_idx]);
+*/
+    }
+    DBUG_PRINT("info",("spider bg mon roop start"));
+    if (share->bg_mon_kill)
+    {
+      DBUG_PRINT("info",("spider bg mon kill start"));
+/*
+      pthread_mutex_lock(&share->bg_mon_mutexes[link_idx]);
+*/
+      pthread_cond_signal(&share->bg_mon_conds[link_idx]);
+      pthread_mutex_unlock(&share->bg_mon_mutexes[link_idx]);
+      spider_free_trx(trx, TRUE);
+      delete thd;
+#if !defined(MYSQL_DYNAMIC_PLUGIN) || !defined(_WIN32)
+      set_current_thd(nullptr);
+#endif
+      my_thread_end();
+      DBUG_RETURN(NULL);
+    }
+    if (share->monitoring_bg_kind[link_idx])
+    {
+      lex_start(thd);
+      error_num = spider_ping_table_mon_from_table(
+        trx,
+        thd,
+        share,
+        link_idx,
+        (uint32) share->monitoring_sid[link_idx],
+        share->table_name,
+        share->table_name_length,
+        link_idx,
+        NULL,
+        0,
+        share->monitoring_bg_kind[link_idx],
+        share->monitoring_limit[link_idx],
+        share->monitoring_bg_flag[link_idx],
+        TRUE
+      );
+      lex_end(thd->lex);
+    }
+  }
+}
+#endif
+
+int spider_conn_first_link_idx(
+  THD *thd,
+  long *link_statuses,
+  long *access_balances,
+  uint *conn_link_idx,
+  int link_count,
+  int link_status
+) {
+  int roop_count, active_links = 0;
+  longlong balance_total = 0, balance_val;
+  double rand_val;
+  int *link_idxs, link_idx;
+  long *balances;
+  DBUG_ENTER("spider_conn_first_link_idx");
+  char *ptr;
+  ptr = (char *) my_alloca((sizeof(int) * link_count) + (sizeof(long) * link_count));
+  if (!ptr)
+  {
+    DBUG_PRINT("info",("spider out of memory"));
+    DBUG_RETURN(-2);
+  }
+  link_idxs = (int *) ptr;
+  ptr += sizeof(int) * link_count;
+  balances = (long *) ptr;
+  for (roop_count = 0; roop_count < link_count; roop_count++)
+  {
+    DBUG_ASSERT((conn_link_idx[roop_count] - roop_count) % link_count == 0);
+    if (link_statuses[conn_link_idx[roop_count]] <= link_status)
+    {
+      link_idxs[active_links] = roop_count;
+      balances[active_links] = access_balances[roop_count];
+      balance_total += access_balances[roop_count];
+      active_links++;
+    }
+  }
+
+  if (active_links == 0)
+  {
+    DBUG_PRINT("info",("spider all links are failed"));
+    my_afree(link_idxs);
+    DBUG_RETURN(-1);
+  }
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100002
+  DBUG_PRINT("info",("spider server_id=%lu", thd->variables.server_id));
+#else
+  DBUG_PRINT("info",("spider server_id=%u", thd->server_id));
+#endif
+  DBUG_PRINT("info",("spider thread_id=%lu", thd_get_thread_id(thd)));
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100002
+  rand_val = spider_rand(thd->variables.server_id + thd_get_thread_id(thd));
+#else
+  rand_val = spider_rand(thd->server_id + thd_get_thread_id(thd));
+#endif
+  DBUG_PRINT("info",("spider rand_val=%f", rand_val));
+  balance_val = (longlong) (rand_val * balance_total);
+  DBUG_PRINT("info",("spider balance_val=%lld", balance_val));
+  for (roop_count = 0; roop_count < active_links - 1; roop_count++)
+  {
+    DBUG_PRINT("info",("spider balances[%d]=%ld",
+      roop_count, balances[roop_count]));
+    if (balance_val < balances[roop_count])
+      break;
+    balance_val -= balances[roop_count];
+  }
+
+  DBUG_PRINT("info",("spider first link_idx=%d", link_idxs[roop_count]));
+  link_idx = link_idxs[roop_count];
+  my_afree(link_idxs);
+  DBUG_RETURN(link_idx);
+}
+
+int spider_conn_next_link_idx(
+  THD *thd,
+  long *link_statuses,
+  long *access_balances,
+  uint *conn_link_idx,
+  int link_idx,
+  int link_count,
+  int link_status
+) {
+  int tmp_link_idx;
+  DBUG_ENTER("spider_conn_next_link_idx");
+  DBUG_ASSERT((conn_link_idx[link_idx] - link_idx) % link_count == 0);
+  tmp_link_idx = spider_conn_first_link_idx(thd, link_statuses,
+    access_balances, conn_link_idx, link_count, link_status);
+  if (
+    tmp_link_idx >= 0 &&
+    tmp_link_idx == link_idx
+  ) {
+    do {
+      tmp_link_idx++;
+      if (tmp_link_idx >= link_count)
+        tmp_link_idx = 0;
+      if (tmp_link_idx == link_idx)
+        break;
+    } while (link_statuses[conn_link_idx[tmp_link_idx]] > link_status);
+    DBUG_PRINT("info",("spider next link_idx=%d", tmp_link_idx));
+    DBUG_RETURN(tmp_link_idx);
+  }
+  DBUG_PRINT("info",("spider next link_idx=%d", tmp_link_idx));
+  DBUG_RETURN(tmp_link_idx);
+}
+
+int spider_conn_link_idx_next(
+  long *link_statuses,
+  uint *conn_link_idx,
+  int link_idx,
+  int link_count,
+  int link_status
+) {
+  DBUG_ENTER("spider_conn_link_idx_next");
+  do {
+    link_idx++;
+    if (link_idx >= link_count)
+      break;
+    DBUG_ASSERT((conn_link_idx[link_idx] - link_idx) % link_count == 0);
+  } while (link_statuses[conn_link_idx[link_idx]] > link_status);
+  DBUG_PRINT("info",("spider link_idx=%d", link_idx));
+  DBUG_RETURN(link_idx);
+}
+
+int spider_conn_get_link_status(
+  long *link_statuses,
+  uint *conn_link_idx,
+  int link_idx
+) {
+  DBUG_ENTER("spider_conn_get_link_status");
+  DBUG_PRINT("info",("spider link_status=%d",
+    (int) link_statuses[conn_link_idx[link_idx]]));
+  DBUG_RETURN((int) link_statuses[conn_link_idx[link_idx]]);
+}
+
+int spider_conn_lock_mode(
+  ha_spider *spider
+) {
+  SPIDER_WIDE_HANDLER *wide_handler = spider->wide_handler;
+  DBUG_ENTER("spider_conn_lock_mode");
+  if (wide_handler->external_lock_type == F_WRLCK ||
+    wide_handler->lock_mode == 2)
+    DBUG_RETURN(SPIDER_LOCK_MODE_EXCLUSIVE);
+  else if (wide_handler->lock_mode == 1)
+    DBUG_RETURN(SPIDER_LOCK_MODE_SHARED);
+  DBUG_RETURN(SPIDER_LOCK_MODE_NO_LOCK);
+}
+
+bool spider_conn_check_recovery_link(
+  SPIDER_SHARE *share
+) {
+  int roop_count;
+  DBUG_ENTER("spider_check_recovery_link");
+  for (roop_count = 0; roop_count < (int) share->link_count; roop_count++)
+  {
+    if (share->link_statuses[roop_count] == SPIDER_LINK_STATUS_RECOVERY)
+      DBUG_RETURN(TRUE);
+  }
+  DBUG_RETURN(FALSE);
+}
+
+bool spider_conn_use_handler(
+  ha_spider *spider,
+  int lock_mode,
+  int link_idx
+) {
+  THD *thd = spider->wide_handler->trx->thd;
+  int use_handler = spider_param_use_handler(thd,
+    spider->share->use_handlers[link_idx]);
+  DBUG_ENTER("spider_conn_use_handler");
+  DBUG_PRINT("info",("spider use_handler=%d", use_handler));
+  DBUG_PRINT("info",("spider spider->conn_kind[link_idx]=%u",
+    spider->conn_kind[link_idx]));
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (spider->conn_kind[link_idx] != SPIDER_CONN_KIND_MYSQL)
+  {
+    DBUG_PRINT("info",("spider TRUE by HS"));
+    spider->sql_kinds |= SPIDER_SQL_KIND_HS;
+    spider->sql_kind[link_idx] = SPIDER_SQL_KIND_HS;
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+    if (
+      spider->do_direct_update &&
+      spider_bit_is_set(spider->do_hs_direct_update, link_idx)
+    ) {
+      DBUG_PRINT("info",("spider using HS direct_update"));
+      spider->direct_update_kinds |= SPIDER_SQL_KIND_HS;
+    }
+#endif
+    DBUG_RETURN(TRUE);
+  }
+#endif
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  if (spider->do_direct_update)
+  {
+    spider->sql_kinds |= SPIDER_SQL_KIND_SQL;
+    spider->sql_kind[link_idx] = SPIDER_SQL_KIND_SQL;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    if (spider_bit_is_set(spider->do_hs_direct_update, link_idx))
+    {
+      spider->direct_update_kinds |= SPIDER_SQL_KIND_HS;
+      DBUG_PRINT("info",("spider TRUE by using HS direct_update"));
+      DBUG_RETURN(TRUE);
+    } else {
+#endif
+      spider->direct_update_kinds |= SPIDER_SQL_KIND_SQL;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    }
+    if (spider->conn_kind[link_idx] == SPIDER_CONN_KIND_MYSQL)
+    {
+#endif
+      DBUG_PRINT("info",("spider FALSE by using direct_update"));
+      DBUG_RETURN(FALSE);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    } else {
+      DBUG_PRINT("info",("spider TRUE by using BOTH"));
+      DBUG_RETURN(TRUE);
+    }
+#endif
+  }
+#endif
+  if (spider->use_spatial_index)
+  {
+    DBUG_PRINT("info",("spider FALSE by use_spatial_index"));
+    spider->sql_kinds |= SPIDER_SQL_KIND_SQL;
+    spider->sql_kind[link_idx] = SPIDER_SQL_KIND_SQL;
+    DBUG_RETURN(FALSE);
+  }
+  uint dbton_id;
+  spider_db_handler *dbton_hdl;
+  dbton_id = spider->share->sql_dbton_ids[spider->conn_link_idx[link_idx]];
+  dbton_hdl = spider->dbton_handler[dbton_id];
+  if (!dbton_hdl->support_use_handler(use_handler))
+  {
+    DBUG_PRINT("info",("spider FALSE by dbton"));
+    spider->sql_kinds |= SPIDER_SQL_KIND_SQL;
+    spider->sql_kind[link_idx] = SPIDER_SQL_KIND_SQL;
+    DBUG_RETURN(FALSE);
+  }
+  if (
+    spider->wide_handler->sql_command == SQLCOM_HA_READ &&
+    (
+      !(use_handler & 2) ||
+      (
+        spider_param_sync_trx_isolation(thd) &&
+        thd_tx_isolation(thd) == ISO_SERIALIZABLE
+      )
+    )
+  ) {
+    DBUG_PRINT("info",("spider TRUE by HA"));
+    spider->sql_kinds |= SPIDER_SQL_KIND_HANDLER;
+    spider->sql_kind[link_idx] = SPIDER_SQL_KIND_HANDLER;
+    DBUG_RETURN(TRUE);
+  }
+  if (
+    spider->wide_handler->sql_command != SQLCOM_HA_READ &&
+    lock_mode == SPIDER_LOCK_MODE_NO_LOCK &&
+    spider_param_sync_trx_isolation(thd) &&
+    thd_tx_isolation(thd) != ISO_SERIALIZABLE &&
+    (use_handler & 1)
+  ) {
+    DBUG_PRINT("info",("spider TRUE by PARAM"));
+    spider->sql_kinds |= SPIDER_SQL_KIND_HANDLER;
+    spider->sql_kind[link_idx] = SPIDER_SQL_KIND_HANDLER;
+    DBUG_RETURN(TRUE);
+  }
+  spider->sql_kinds |= SPIDER_SQL_KIND_SQL;
+  spider->sql_kind[link_idx] = SPIDER_SQL_KIND_SQL;
+  DBUG_RETURN(FALSE);
+}
+
+bool spider_conn_need_open_handler(
+  ha_spider *spider,
+  uint idx,
+  int link_idx
+) {
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  SPIDER_CONN *conn;
+#endif
+  DBUG_ENTER("spider_conn_need_open_handler");
+  DBUG_PRINT("info",("spider spider=%p", spider));
+  if (spider->handler_opened(link_idx, spider->conn_kind[link_idx]))
+  {
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+    if (
+      spider->do_direct_update &&
+      spider_bit_is_set(spider->do_hs_direct_update, link_idx)
+    ) {
+      conn = spider->hs_w_conns[link_idx];
+      if (
+        !conn->server_lost &&
+        conn->hs_pre_age == spider->hs_w_conn_ages[link_idx]
+      ) {
+        DBUG_PRINT("info",("spider hs_write is already opened"));
+        DBUG_RETURN(FALSE);
+      }
+    } else
+#endif
+    if (spider->conn_kind[link_idx] == SPIDER_CONN_KIND_MYSQL)
+    {
+#endif
+      DBUG_PRINT("info",("spider HA already opened"));
+      DBUG_RETURN(FALSE);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    } else if (spider->conn_kind[link_idx] == SPIDER_CONN_KIND_HS_READ)
+    {
+      DBUG_PRINT("info",("spider r_handler_index[%d]=%d",
+        link_idx, spider->r_handler_index[link_idx]));
+      DBUG_PRINT("info",("spider idx=%d", idx));
+      DBUG_PRINT("info",("spider hs_pushed_ret_fields_num=%zu",
+        spider->hs_pushed_ret_fields_num));
+      DBUG_PRINT("info",("spider hs_r_ret_fields_num[%d]=%lu",
+        link_idx, spider->hs_r_ret_fields_num[link_idx]));
+      DBUG_PRINT("info",("spider hs_r_ret_fields[%d]=%p",
+        link_idx, spider->hs_r_ret_fields[link_idx]));
+#ifndef DBUG_OFF
+      if (
+        spider->hs_pushed_ret_fields_num < MAX_FIELDS &&
+        spider->hs_r_ret_fields[link_idx] &&
+        spider->hs_pushed_ret_fields_num ==
+          spider->hs_r_ret_fields_num[link_idx]
+      ) {
+        int roop_count;
+        for (roop_count = 0; roop_count < (int) spider->hs_pushed_ret_fields_num;
+          ++roop_count)
+        {
+          DBUG_PRINT("info",("spider hs_pushed_ret_fields[%d]=%u",
+            roop_count, spider->hs_pushed_ret_fields[roop_count]));
+          DBUG_PRINT("info",("spider hs_r_ret_fields[%d][%d]=%u",
+            link_idx, roop_count,
+            spider->hs_r_ret_fields[link_idx][roop_count]));
+        }
+      }
+#endif
+      if (
+        spider->r_handler_index[link_idx] == idx
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+        && (
+          (
+            spider->hs_pushed_ret_fields_num == MAX_FIELDS &&
+            spider->hs_r_ret_fields_num[link_idx] == MAX_FIELDS
+          ) ||
+          (
+            spider->hs_pushed_ret_fields_num < MAX_FIELDS &&
+            spider->hs_r_ret_fields[link_idx] &&
+            spider->hs_pushed_ret_fields_num ==
+              spider->hs_r_ret_fields_num[link_idx] &&
+            !memcmp(spider->hs_pushed_ret_fields,
+              spider->hs_r_ret_fields[link_idx],
+              sizeof(uint32) * spider->hs_pushed_ret_fields_num)
+          )
+        )
+#endif
+      ) {
+        SPIDER_CONN *conn = spider->hs_r_conns[link_idx];
+        DBUG_PRINT("info",("spider conn=%p", conn));
+        DBUG_PRINT("info",("spider conn->conn_id=%llu", conn->conn_id));
+        DBUG_PRINT("info",("spider conn->connection_id=%llu",
+          conn->connection_id));
+        DBUG_PRINT("info",("spider conn->server_lost=%s",
+          conn->server_lost ? "TRUE" : "FALSE"));
+        DBUG_PRINT("info",("spider conn->hs_pre_age=%llu", conn->hs_pre_age));
+        DBUG_PRINT("info",("spider hs_w_conn_ages[%d]=%llu",
+          link_idx, spider->hs_w_conn_ages[link_idx]));
+        if (
+          !conn->server_lost &&
+          conn->hs_pre_age == spider->hs_r_conn_ages[link_idx]
+        ) {
+          DBUG_PRINT("info",("spider hs_r same idx"));
+          DBUG_RETURN(FALSE);
+        }
+      }
+    } else if (spider->conn_kind[link_idx] == SPIDER_CONN_KIND_HS_WRITE)
+    {
+      DBUG_PRINT("info",("spider w_handler_index[%d]=%d",
+        link_idx, spider->w_handler_index[link_idx]));
+      DBUG_PRINT("info",("spider idx=%d", idx));
+      DBUG_PRINT("info",("spider hs_pushed_ret_fields_num=%zu",
+        spider->hs_pushed_ret_fields_num));
+      DBUG_PRINT("info",("spider hs_w_ret_fields_num[%d]=%lu",
+        link_idx, spider->hs_w_ret_fields_num[link_idx]));
+      DBUG_PRINT("info",("spider hs_w_ret_fields[%d]=%p",
+        link_idx, spider->hs_w_ret_fields[link_idx]));
+#ifndef DBUG_OFF
+      if (
+        spider->hs_pushed_ret_fields_num < MAX_FIELDS &&
+        spider->hs_w_ret_fields[link_idx] &&
+        spider->hs_pushed_ret_fields_num ==
+          spider->hs_w_ret_fields_num[link_idx]
+      ) {
+        int roop_count;
+        for (roop_count = 0; roop_count < (int) spider->hs_pushed_ret_fields_num;
+          ++roop_count)
+        {
+          DBUG_PRINT("info",("spider hs_pushed_ret_fields[%d]=%u",
+            roop_count, spider->hs_pushed_ret_fields[roop_count]));
+          DBUG_PRINT("info",("spider hs_w_ret_fields[%d][%d]=%u",
+            link_idx, roop_count,
+            spider->hs_w_ret_fields[link_idx][roop_count]));
+        }
+      }
+#endif
+      if (
+        spider->w_handler_index[link_idx] == idx
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+        && (
+          (
+            spider->hs_pushed_ret_fields_num == MAX_FIELDS &&
+            spider->hs_w_ret_fields_num[link_idx] == MAX_FIELDS
+          ) ||
+          (
+            spider->hs_pushed_ret_fields_num < MAX_FIELDS &&
+            spider->hs_w_ret_fields[link_idx] &&
+            spider->hs_pushed_ret_fields_num ==
+              spider->hs_w_ret_fields_num[link_idx] &&
+            !memcmp(spider->hs_pushed_ret_fields,
+              spider->hs_w_ret_fields[link_idx],
+              sizeof(uint32) * spider->hs_pushed_ret_fields_num)
+          )
+        )
+#endif
+      ) {
+        SPIDER_CONN *conn = spider->hs_w_conns[link_idx];
+        DBUG_PRINT("info",("spider conn=%p", conn));
+        DBUG_PRINT("info",("spider conn->conn_id=%llu", conn->conn_id));
+        DBUG_PRINT("info",("spider conn->connection_id=%llu",
+          conn->connection_id));
+        DBUG_PRINT("info",("spider conn->server_lost=%s",
+          conn->server_lost ? "TRUE" : "FALSE"));
+        DBUG_PRINT("info",("spider conn->hs_pre_age=%llu", conn->hs_pre_age));
+        DBUG_PRINT("info",("spider hs_w_conn_ages[%d]=%llu",
+          link_idx, spider->hs_w_conn_ages[link_idx]));
+        if (
+          !conn->server_lost &&
+          conn->hs_pre_age == spider->hs_w_conn_ages[link_idx]
+        ) {
+          DBUG_PRINT("info",("spider hs_w same idx"));
+          DBUG_RETURN(FALSE);
+        }
+      }
+    }
+#endif
+  }
+  DBUG_RETURN(TRUE);
+}
+
+SPIDER_CONN* spider_get_conn_from_idle_connection(
+  SPIDER_SHARE *share,
+  int link_idx,
+  char *conn_key,
+  ha_spider *spider,
+  uint conn_kind,
+  int base_link_idx,
+  int *error_num
+  )
+{
+  DBUG_ENTER("spider_get_conn_from_idle_connection");
+  SPIDER_IP_PORT_CONN *ip_port_conn;
+  SPIDER_CONN *conn = NULL;
+  uint spider_max_connections = spider_param_max_connections();
+  struct timespec abstime;
+  ulonglong start, inter_val = 0;
+  longlong last_ntime = 0;
+  ulonglong wait_time = (ulonglong)spider_param_conn_wait_timeout()*1000*1000*1000; // default 10s
+
+  unsigned long ip_port_count = 0; // init 0
+
+  set_timespec(abstime, 0);
+
+  pthread_mutex_lock(&spider_ipport_conn_mutex);
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  if ((ip_port_conn = (SPIDER_IP_PORT_CONN*) my_hash_search_using_hash_value(
+    &spider_ipport_conns, share->conn_keys_hash_value[link_idx],
+    (uchar*) share->conn_keys[link_idx], share->conn_keys_lengths[link_idx])))
+#else
+  if ((ip_port_conn = (SPIDER_IP_PORT_CONN*) my_hash_search(
+    &spider_ipport_conns,
+    (uchar*) share->conn_keys[link_idx], share->conn_keys_lengths[link_idx])))
+#endif
+  { /* exists */
+    pthread_mutex_unlock(&spider_ipport_conn_mutex);
+    pthread_mutex_lock(&ip_port_conn->mutex);
+    ip_port_count = ip_port_conn->ip_port_count;
+  } else {
+    pthread_mutex_unlock(&spider_ipport_conn_mutex);
+  }
+
+  if (
+    ip_port_conn &&
+    ip_port_count >= spider_max_connections &&
+    spider_max_connections > 0
+  ) { /* no idle conn && enable connection pool, wait */
+    pthread_mutex_unlock(&ip_port_conn->mutex);
+    start = my_hrtime().val;
+    while(1)
+    {
+      int error;
+      inter_val = my_hrtime().val - start; // us
+      last_ntime = wait_time - inter_val*1000; // *1000, to ns
+      if(last_ntime <= 0)
+      {/* wait timeout */
+        *error_num = ER_SPIDER_CON_COUNT_ERROR;
+        DBUG_RETURN(NULL);
+      }
+      set_timespec_nsec(abstime, last_ntime);
+      pthread_mutex_lock(&ip_port_conn->mutex);
+      ++ip_port_conn->waiting_count;
+      error = pthread_cond_timedwait(&ip_port_conn->cond, &ip_port_conn->mutex, &abstime);
+      --ip_port_conn->waiting_count;
+      pthread_mutex_unlock(&ip_port_conn->mutex);
+      if (error == ETIMEDOUT || error == ETIME || error != 0 )
+      {
+        *error_num = ER_SPIDER_CON_COUNT_ERROR;
+        DBUG_RETURN(NULL);
+      }
+
+      pthread_mutex_lock(&spider_conn_mutex);
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+      if ((conn = (SPIDER_CONN*) my_hash_search_using_hash_value(
+        &spider_open_connections, share->conn_keys_hash_value[link_idx],
+        (uchar*) share->conn_keys[link_idx],
+        share->conn_keys_lengths[link_idx])))
+#else
+      if ((conn = (SPIDER_CONN*) my_hash_search(&spider_open_connections,
+        (uchar*) share->conn_keys[link_idx],
+        share->conn_keys_lengths[link_idx])))
+#endif
+      {
+        /* get conn from spider_open_connections, then delete conn in spider_open_connections */
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+        my_hash_delete_with_hash_value(&spider_open_connections,
+          conn->conn_key_hash_value, (uchar*) conn);
+#else
+        my_hash_delete(&spider_open_connections, (uchar*) conn);  
+#endif
+        pthread_mutex_unlock(&spider_conn_mutex);
+        DBUG_PRINT("info",("spider get global conn"));
+        if (spider)
+        {
+          spider->conns[base_link_idx] = conn;
+          if (spider_bit_is_set(spider->conn_can_fo, base_link_idx))
+            conn->use_for_active_standby = TRUE;
+        }
+        DBUG_RETURN(conn);
+      }
+      else
+      {
+        pthread_mutex_unlock(&spider_conn_mutex);
+      }
+    }
+  }
+  else
+  { /* create conn */
+    if (ip_port_conn)
+      pthread_mutex_unlock(&ip_port_conn->mutex);
+    DBUG_PRINT("info",("spider create new conn"));
+    if (!(conn = spider_create_conn(share, spider, link_idx, base_link_idx, conn_kind, error_num)))
+      DBUG_RETURN(conn);
+    *conn->conn_key = *conn_key;
+    if (spider)
+    {
+      spider->conns[base_link_idx] = conn;
+      if (spider_bit_is_set(spider->conn_can_fo, base_link_idx))
+        conn->use_for_active_standby = TRUE;
+    }
+  }
+
+  DBUG_RETURN(conn);
+}
+
+
+SPIDER_IP_PORT_CONN* spider_create_ipport_conn(SPIDER_CONN *conn)
+{
+  DBUG_ENTER("spider_create_ipport_conn");
+  if (conn)
+  {
+    SPIDER_IP_PORT_CONN *ret = (SPIDER_IP_PORT_CONN *)
+      my_malloc(PSI_INSTRUMENT_ME, sizeof(*ret), MY_ZEROFILL | MY_WME);
+    if (!ret)
+    {
+      goto err_return_direct;
+    }
+
+#if MYSQL_VERSION_ID < 50500
+    if (pthread_mutex_init(&ret->mutex, MY_MUTEX_INIT_FAST))
+#else
+    if (mysql_mutex_init(spd_key_mutex_conn_i, &ret->mutex, MY_MUTEX_INIT_FAST))
+#endif
+    {
+      //error
+      goto err_malloc_key;
+    }
+
+#if MYSQL_VERSION_ID < 50500
+    if (pthread_cond_init(&ret->cond, NULL))
+#else
+    if (mysql_cond_init(spd_key_cond_conn_i, &ret->cond, NULL))
+#endif
+    {
+      pthread_mutex_destroy(&ret->mutex);
+      goto err_malloc_key;
+      //error
+    }
+
+    ret->key_len = conn->conn_key_length;
+    if (ret->key_len <= 0) {
+      pthread_cond_destroy(&ret->cond);
+      pthread_mutex_destroy(&ret->mutex);
+      goto err_malloc_key;
+    }
+
+    ret->key = (char *) my_malloc(PSI_INSTRUMENT_ME, ret->key_len +
+                             conn->tgt_host_length + 1, MY_ZEROFILL | MY_WME);
+    if (!ret->key) {
+      pthread_cond_destroy(&ret->cond);
+      pthread_mutex_destroy(&ret->mutex);
+      goto err_malloc_key;
+    }
+    ret->remote_ip_str = ret->key + ret->key_len;
+
+    memcpy(ret->key, conn->conn_key, ret->key_len);
+
+    memcpy(ret->remote_ip_str, conn->tgt_host, conn->tgt_host_length);
+    ret->remote_port = conn->tgt_port;
+    ret->conn_id = conn->conn_id;
+    ret->ip_port_count = 1; // init
+
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+    ret->key_hash_value = conn->conn_key_hash_value;
+#endif
+    DBUG_RETURN(ret);
+err_malloc_key:
+    spider_my_free(ret, MYF(0));
+err_return_direct:
+    DBUG_RETURN(NULL);
+  }
+  DBUG_RETURN(NULL);
+}
+
+
+void spider_free_ipport_conn(void *info)
+{
+  DBUG_ENTER("spider_free_ipport_conn");
+  if (info)
+  {
+    SPIDER_IP_PORT_CONN *p = (SPIDER_IP_PORT_CONN *)info;
+    pthread_cond_destroy(&p->cond);
+    pthread_mutex_destroy(&p->mutex);
+    spider_my_free(p->key, MYF(0));
+    spider_my_free(p, MYF(0));
+  }
+  DBUG_VOID_RETURN;
+}
diff --git a/storage/spider/spd_conn.h b/storage/spider/spd_conn.h
new file mode 100644
index 00000000..92da278e
--- /dev/null
+++ b/storage/spider/spd_conn.h
@@ -0,0 +1,422 @@
+/* Copyright (C) 2008-2020 Kentoku Shiba
+   Copyright (C) 2019-2020 MariaDB corp
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+#define SPIDER_LOCK_MODE_NO_LOCK             0
+#define SPIDER_LOCK_MODE_SHARED              1
+#define SPIDER_LOCK_MODE_EXCLUSIVE           2
+
+#define SPIDER_SIMPLE_NO_ACTION           0
+#define SPIDER_SIMPLE_CONNECT             1
+#define SPIDER_SIMPLE_DISCONNECT          2
+#define SPIDER_SIMPLE_RECORDS             3
+#ifdef HA_HAS_CHECKSUM_EXTENDED
+#define SPIDER_SIMPLE_CHECKSUM_TABLE      4
+#endif
+
+#define SPIDER_LOP_CHK_QUEUED             (1 << 0)
+#define SPIDER_LOP_CHK_MERAGED            (1 << 1)
+#define SPIDER_LOP_CHK_IGNORED            (1 << 2)
+
+typedef struct st_spider_conn_loop_check
+{
+  uint               flag;
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  my_hash_value_type hash_value_to;
+  my_hash_value_type hash_value_full;
+#endif
+  LEX_CSTRING        from_name;
+  LEX_CSTRING        cur_name;
+  LEX_CSTRING        to_name;
+  LEX_CSTRING        full_name;
+  LEX_CSTRING        from_value;
+  LEX_CSTRING        merged_value;
+  st_spider_conn_loop_check *next;
+} SPIDER_CONN_LOOP_CHECK;
+
+uchar *spider_conn_get_key(
+  SPIDER_CONN *conn,
+  size_t *length,
+  my_bool not_used __attribute__ ((unused))
+);
+
+uchar *spider_ipport_conn_get_key(
+  SPIDER_IP_PORT_CONN *ip_port,
+  size_t *length,
+  my_bool not_used __attribute__ ((unused))
+);
+
+int spider_conn_init(
+  SPIDER_CONN *conn
+);
+
+void spider_conn_done(
+  SPIDER_CONN *conn
+);
+
+int spider_reset_conn_setted_parameter(
+  SPIDER_CONN *conn,
+  THD *thd
+);
+
+int spider_free_conn_alloc(
+  SPIDER_CONN *conn
+);
+
+void spider_free_conn_from_trx(
+  SPIDER_TRX *trx,
+  SPIDER_CONN *conn,
+  bool another,
+  bool trx_free,
+  int *roop_count
+);
+
+SPIDER_CONN *spider_create_conn(
+  SPIDER_SHARE *share,
+  ha_spider *spider,
+  int link_id,
+  int base_link_id,
+  uint conn_kind,
+  int *error_num
+);
+
+SPIDER_CONN *spider_get_conn(
+  SPIDER_SHARE *share,
+  int link_idx,
+  char *conn_key,
+  SPIDER_TRX *trx,
+  ha_spider *spider,
+  bool another,
+  bool thd_chg,
+  uint conn_kind,
+  int *error_num
+);
+
+int spider_free_conn(
+  SPIDER_CONN *conn
+);
+
+int spider_check_and_get_casual_read_conn(
+  THD *thd,
+  ha_spider *spider,
+  int link_idx
+);
+
+int spider_check_and_init_casual_read(
+  THD *thd,
+  ha_spider *spider,
+  int link_idx
+);
+
+void spider_conn_queue_connect(
+  SPIDER_SHARE *share,
+  SPIDER_CONN *conn,
+  int link_idx
+);
+
+void spider_conn_queue_connect_rewrite(
+  SPIDER_SHARE *share,
+  SPIDER_CONN *conn,
+  int link_idx
+);
+
+void spider_conn_queue_ping(
+  ha_spider *spider,
+  SPIDER_CONN *conn,
+  int link_idx
+);
+
+void spider_conn_queue_ping_rewrite(
+  ha_spider *spider,
+  SPIDER_CONN *conn,
+  int link_idx
+);
+
+void spider_conn_queue_trx_isolation(
+  SPIDER_CONN *conn,
+  int trx_isolation
+);
+
+void spider_conn_queue_semi_trx_isolation(
+  SPIDER_CONN *conn,
+  int trx_isolation
+);
+
+void spider_conn_queue_autocommit(
+  SPIDER_CONN *conn,
+  bool autocommit
+);
+
+void spider_conn_queue_sql_log_off(
+  SPIDER_CONN *conn,
+  bool sql_log_off
+);
+
+void spider_conn_queue_wait_timeout(
+  SPIDER_CONN *conn,
+  int wait_timeout
+);
+
+void spider_conn_queue_sql_mode(
+  SPIDER_CONN *conn,
+  sql_mode_t sql_mode
+);
+
+void spider_conn_queue_time_zone(
+  SPIDER_CONN *conn,
+  Time_zone *time_zone
+);
+
+void spider_conn_queue_UTC_time_zone(
+  SPIDER_CONN *conn
+);
+
+int spider_conn_queue_and_merge_loop_check(
+  SPIDER_CONN *conn,
+  SPIDER_CONN_LOOP_CHECK *lcptr
+);
+
+int spider_conn_reset_queue_loop_check(
+  SPIDER_CONN *conn
+);
+
+int spider_conn_queue_loop_check(
+  SPIDER_CONN *conn,
+  ha_spider *spider,
+  int link_idx
+);
+
+void spider_conn_queue_start_transaction(
+  SPIDER_CONN *conn
+);
+
+void spider_conn_queue_xa_start(
+  SPIDER_CONN *conn,
+  XID *xid
+);
+
+void spider_conn_clear_queue(
+  SPIDER_CONN *conn
+);
+
+void spider_conn_clear_queue_at_commit(
+  SPIDER_CONN *conn
+);
+
+void spider_conn_set_timeout(
+  SPIDER_CONN *conn,
+  uint net_read_timeout,
+  uint net_write_timeout
+);
+
+void spider_conn_set_timeout_from_share(
+  SPIDER_CONN *conn,
+  int link_idx,
+  THD *thd,
+  SPIDER_SHARE *share
+);
+
+void spider_conn_set_timeout_from_direct_sql(
+  SPIDER_CONN *conn,
+  THD *thd,
+  SPIDER_DIRECT_SQL *direct_sql
+);
+
+void spider_tree_insert(
+  SPIDER_CONN *top,
+  SPIDER_CONN *conn
+);
+
+SPIDER_CONN *spider_tree_first(
+  SPIDER_CONN *top
+);
+
+SPIDER_CONN *spider_tree_last(
+  SPIDER_CONN *top
+);
+
+SPIDER_CONN *spider_tree_next(
+  SPIDER_CONN *current
+);
+
+SPIDER_CONN *spider_tree_delete(
+  SPIDER_CONN *conn,
+  SPIDER_CONN *top
+);
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+int spider_set_conn_bg_param(
+  ha_spider *spider
+);
+
+int spider_create_conn_thread(
+  SPIDER_CONN *conn
+);
+
+void spider_free_conn_thread(
+  SPIDER_CONN *conn
+);
+
+void spider_bg_conn_wait(
+  SPIDER_CONN *conn
+);
+
+void spider_bg_all_conn_wait(
+  ha_spider *spider
+);
+
+int spider_bg_all_conn_pre_next(
+  ha_spider *spider,
+  int link_idx
+);
+
+void spider_bg_conn_break(
+  SPIDER_CONN *conn,
+  ha_spider *spider
+);
+
+void spider_bg_all_conn_break(
+  ha_spider *spider
+);
+
+bool spider_bg_conn_get_job(
+  SPIDER_CONN *conn
+);
+
+int spider_bg_conn_search(
+  ha_spider *spider,
+  int link_idx,
+  int first_link_idx,
+  bool first,
+  bool pre_next,
+  bool discard_result
+);
+
+void spider_bg_conn_simple_action(
+  SPIDER_CONN *conn,
+  uint simple_action,
+  bool caller_wait,
+  void *target,
+  uint link_idx,
+  int *error_num
+);
+
+void *spider_bg_conn_action(
+  void *arg
+);
+
+int spider_create_sts_thread(
+  SPIDER_SHARE *share
+);
+
+void spider_free_sts_thread(
+  SPIDER_SHARE *share
+);
+
+void *spider_bg_sts_action(
+  void *arg
+);
+
+int spider_create_crd_thread(
+  SPIDER_SHARE *share
+);
+
+void spider_free_crd_thread(
+  SPIDER_SHARE *share
+);
+
+void *spider_bg_crd_action(
+  void *arg
+);
+
+int spider_create_mon_threads(
+  SPIDER_TRX *trx,
+  SPIDER_SHARE *share
+);
+
+void spider_free_mon_threads(
+  SPIDER_SHARE *share
+);
+
+void *spider_bg_mon_action(
+  void *arg
+);
+#endif
+
+int spider_conn_first_link_idx(
+  THD *thd,
+  long *link_statuses,
+  long *access_balances,
+  uint *conn_link_idx,
+  int link_count,
+  int link_status
+);
+
+int spider_conn_next_link_idx(
+  THD *thd,
+  long *link_statuses,
+  long *access_balances,
+  uint *conn_link_idx,
+  int link_idx,
+  int link_count,
+  int link_status
+);
+
+int spider_conn_link_idx_next(
+  long *link_statuses,
+  uint *conn_link_idx,
+  int link_idx,
+  int link_count,
+  int link_status
+);
+
+int spider_conn_get_link_status(
+  long *link_statuses,
+  uint *conn_link_idx,
+  int link_idx
+);
+
+int spider_conn_lock_mode(
+  ha_spider *spider
+);
+
+bool spider_conn_check_recovery_link(
+  SPIDER_SHARE *share
+);
+
+bool spider_conn_use_handler(
+  ha_spider *spider,
+  int lock_mode,
+  int link_idx
+);
+
+bool spider_conn_need_open_handler(
+  ha_spider *spider,
+  uint idx,
+  int link_idx
+);
+
+SPIDER_IP_PORT_CONN *spider_create_ipport_conn(SPIDER_CONN *conn);
+SPIDER_CONN* spider_get_conn_from_idle_connection
+(
+ SPIDER_SHARE *share,
+ int link_idx,
+ char *conn_key,
+ ha_spider *spider,
+ uint conn_kind,
+ int base_link_idx,
+ int *error_num
+ );
+void spider_free_ipport_conn(void *info);
diff --git a/storage/spider/spd_copy_tables.cc b/storage/spider/spd_copy_tables.cc
new file mode 100644
index 00000000..51e3b920
--- /dev/null
+++ b/storage/spider/spd_copy_tables.cc
@@ -0,0 +1,1365 @@
+/* Copyright (C) 2009-2019 Kentoku Shiba
+   Copyright (C) 2019 MariaDB corp
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+#define MYSQL_SERVER 1
+#include <my_global.h>
+#include "mysql_version.h"
+#include "spd_environ.h"
+#if MYSQL_VERSION_ID < 50500
+#include "mysql_priv.h"
+#include <mysql/plugin.h>
+#else
+#include "sql_priv.h"
+#include "probes_mysql.h"
+#include "sql_class.h"
+#include "sql_base.h"
+#include "sql_partition.h"
+#include "transaction.h"
+#endif
+#include "spd_err.h"
+#include "spd_param.h"
+#include "spd_db_include.h"
+#include "spd_include.h"
+#include "ha_spider.h"
+#include "spd_db_conn.h"
+#include "spd_trx.h"
+#include "spd_conn.h"
+#include "spd_sys_table.h"
+#include "spd_table.h"
+#include "spd_copy_tables.h"
+#include "spd_udf.h"
+#include "spd_malloc.h"
+
+extern handlerton *spider_hton_ptr;
+extern SPIDER_DBTON spider_dbton[SPIDER_DBTON_SIZE];
+
+int spider_udf_set_copy_tables_param_default(
+  SPIDER_COPY_TABLES *copy_tables
+) {
+  DBUG_ENTER("spider_udf_set_copy_tables_param_default");
+
+  if (!copy_tables->database)
+  {
+    DBUG_PRINT("info",("spider create default database"));
+    copy_tables->database_length = SPIDER_THD_db_length(copy_tables->trx->thd);
+    if (
+      !(copy_tables->database = spider_create_string(
+        SPIDER_THD_db_str(copy_tables->trx->thd),
+        copy_tables->database_length))
+    ) {
+      my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+  }
+
+  if (copy_tables->bulk_insert_interval == -1)
+    copy_tables->bulk_insert_interval = 10;
+  if (copy_tables->bulk_insert_rows == -1)
+    copy_tables->bulk_insert_rows = 100;
+  if (copy_tables->use_table_charset == -1)
+    copy_tables->use_table_charset = 1;
+  if (copy_tables->use_transaction == -1)
+    copy_tables->use_transaction = 1;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  if (copy_tables->bg_mode == -1)
+    copy_tables->bg_mode = 0;
+#endif
+  DBUG_RETURN(0);
+}
+
+#define SPIDER_PARAM_STR_LEN(name) name ## _length
+#define SPIDER_PARAM_STR(title_name, param_name) \
+  if (!strncasecmp(tmp_ptr, title_name, title_length)) \
+  { \
+    DBUG_PRINT("info",("spider " title_name " start")); \
+    if (!copy_tables->param_name) \
+    { \
+      if ((copy_tables->param_name = spider_get_string_between_quote( \
+        start_ptr, TRUE, &param_string_parse))) \
+        copy_tables->SPIDER_PARAM_STR_LEN(param_name) = \
+          strlen(copy_tables->param_name); \
+      else { \
+        error_num = param_string_parse.print_param_error(); \
+        goto error; \
+      } \
+      DBUG_PRINT("info",("spider " title_name "=%s", copy_tables->param_name)); \
+    } \
+    break; \
+  }
+#define SPIDER_PARAM_HINT_WITH_MAX(title_name, param_name, check_length, max_size, min_val, max_val) \
+  if (!strncasecmp(tmp_ptr, title_name, check_length)) \
+  { \
+    DBUG_PRINT("info",("spider " title_name " start")); \
+    DBUG_PRINT("info",("spider max_size=%d", max_size)); \
+    int hint_num = atoi(tmp_ptr + check_length) - 1; \
+    DBUG_PRINT("info",("spider hint_num=%d", hint_num)); \
+    DBUG_PRINT("info",("spider copy_tables->param_name=%x", \
+      copy_tables->param_name)); \
+    if (copy_tables->param_name) \
+    { \
+      if (hint_num < 0 || hint_num >= max_size) \
+      { \
+        error_num = param_string_parse.print_param_error(); \
+        goto error; \
+      } else if (copy_tables->param_name[hint_num] != -1) \
+        break; \
+      char *hint_str = spider_get_string_between_quote(start_ptr, FALSE); \
+      if (hint_str) \
+      { \
+        copy_tables->param_name[hint_num] = atoi(hint_str); \
+        if (copy_tables->param_name[hint_num] < min_val) \
+          copy_tables->param_name[hint_num] = min_val; \
+        else if (copy_tables->param_name[hint_num] > max_val) \
+          copy_tables->param_name[hint_num] = max_val; \
+      } else { \
+        error_num = param_string_parse.print_param_error(); \
+        goto error; \
+      } \
+      DBUG_PRINT("info",("spider " title_name "[%d]=%d", hint_num, \
+        copy_tables->param_name[hint_num])); \
+    } else { \
+      error_num = param_string_parse.print_param_error(); \
+      goto error; \
+    } \
+    break; \
+  }
+#define SPIDER_PARAM_INT_WITH_MAX(title_name, param_name, min_val, max_val) \
+  if (!strncasecmp(tmp_ptr, title_name, title_length)) \
+  { \
+    DBUG_PRINT("info",("spider " title_name " start")); \
+    if (copy_tables->param_name == -1) \
+    { \
+      if ((tmp_ptr2 = spider_get_string_between_quote( \
+        start_ptr, FALSE))) \
+      { \
+        copy_tables->param_name = atoi(tmp_ptr2); \
+        if (copy_tables->param_name < min_val) \
+          copy_tables->param_name = min_val; \
+        else if (copy_tables->param_name > max_val) \
+          copy_tables->param_name = max_val; \
+        param_string_parse.set_param_value(tmp_ptr2, \
+                                           tmp_ptr2 + \
+                                             strlen(tmp_ptr2) + 1); \
+      } else { \
+        error_num = param_string_parse.print_param_error(); \
+        goto error; \
+      } \
+      DBUG_PRINT("info",("spider " title_name "=%d", copy_tables->param_name)); \
+    } \
+    break; \
+  }
+#define SPIDER_PARAM_INT(title_name, param_name, min_val) \
+  if (!strncasecmp(tmp_ptr, title_name, title_length)) \
+  { \
+    DBUG_PRINT("info",("spider " title_name " start")); \
+    if (copy_tables->param_name == -1) \
+    { \
+      if ((tmp_ptr2 = spider_get_string_between_quote( \
+        start_ptr, FALSE))) \
+      { \
+        copy_tables->param_name = atoi(tmp_ptr2); \
+        if (copy_tables->param_name < min_val) \
+          copy_tables->param_name = min_val; \
+        param_string_parse.set_param_value(tmp_ptr2, \
+                                           tmp_ptr2 + \
+                                             strlen(tmp_ptr2) + 1); \
+      } else { \
+        error_num = param_string_parse.print_param_error(); \
+        goto error; \
+      } \
+      DBUG_PRINT("info",("spider " title_name "=%d", copy_tables->param_name)); \
+    } \
+    break; \
+  }
+#define SPIDER_PARAM_LONGLONG(title_name, param_name, min_val) \
+  if (!strncasecmp(tmp_ptr, title_name, title_length)) \
+  { \
+    DBUG_PRINT("info",("spider " title_name " start")); \
+    if (copy_tables->param_name == -1) \
+    { \
+      if ((tmp_ptr2 = spider_get_string_between_quote( \
+        start_ptr, FALSE))) \
+      { \
+        copy_tables->param_name = \
+          my_strtoll10(tmp_ptr2, (char**) NULL, &error_num); \
+        if (copy_tables->param_name < min_val) \
+          copy_tables->param_name = min_val; \
+        param_string_parse.set_param_value(tmp_ptr2, \
+                                           tmp_ptr2 + \
+                                             strlen(tmp_ptr2) + 1); \
+      } else { \
+        error_num = param_string_parse.print_param_error(); \
+        goto error; \
+      } \
+      DBUG_PRINT("info",("spider " title_name "=%lld", \
+        copy_tables->param_name)); \
+    } \
+    break; \
+  }
+
+int spider_udf_parse_copy_tables_param(
+  SPIDER_COPY_TABLES *copy_tables,
+  char *param,
+  int param_length
+) {
+  int error_num = 0;
+  char *param_string = NULL;
+  char *sprit_ptr;
+  char *tmp_ptr, *tmp_ptr2, *start_ptr;
+  int title_length;
+  SPIDER_PARAM_STRING_PARSE param_string_parse;
+  DBUG_ENTER("spider_udf_parse_copy_tables_param");
+  copy_tables->bulk_insert_interval = -1;
+  copy_tables->bulk_insert_rows = -1;
+  copy_tables->use_table_charset = -1;
+  copy_tables->use_transaction = -1;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  copy_tables->bg_mode = -1;
+#endif
+
+  if (param_length == 0)
+    goto set_default;
+  DBUG_PRINT("info",("spider create param_string string"));
+  if (
+    !(param_string = spider_create_string(
+      param,
+      param_length))
+  ) {
+    error_num = HA_ERR_OUT_OF_MEM;
+    my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+    goto error_alloc_param_string;
+  }
+  DBUG_PRINT("info",("spider param_string=%s", param_string));
+
+  sprit_ptr = param_string;
+  param_string_parse.init(param_string, ER_SPIDER_INVALID_UDF_PARAM_NUM);
+  while (sprit_ptr)
+  {
+    tmp_ptr = sprit_ptr;
+    while (*tmp_ptr == ' ' || *tmp_ptr == '\r' ||
+      *tmp_ptr == '\n' || *tmp_ptr == '\t')
+      tmp_ptr++;
+
+    if (*tmp_ptr == '\0')
+      break;
+
+    title_length = 0;
+    start_ptr = tmp_ptr;
+    while (*start_ptr != ' ' && *start_ptr != '\'' &&
+      *start_ptr != '"' && *start_ptr != '\0' &&
+      *start_ptr != '\r' && *start_ptr != '\n' &&
+      *start_ptr != '\t')
+    {
+      title_length++;
+      start_ptr++;
+    }
+    param_string_parse.set_param_title(tmp_ptr, tmp_ptr + title_length);
+    if ((error_num = param_string_parse.get_next_parameter_head(
+      start_ptr, &sprit_ptr)))
+    {
+      goto error;
+    }
+
+    switch (title_length)
+    {
+      case 0:
+        error_num = param_string_parse.print_param_error();
+        if (error_num)
+          goto error;
+        continue;
+      case 3:
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+        SPIDER_PARAM_INT_WITH_MAX("bgm", bg_mode, 0, 1);
+#endif
+        SPIDER_PARAM_INT("bii", bulk_insert_interval, 0);
+        SPIDER_PARAM_LONGLONG("bir", bulk_insert_rows, 1);
+        SPIDER_PARAM_STR("dtb", database);
+        SPIDER_PARAM_INT_WITH_MAX("utc", use_table_charset, 0, 1);
+        SPIDER_PARAM_INT_WITH_MAX("utr", use_transaction, 0, 1);
+        error_num = param_string_parse.print_param_error();
+        goto error;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+      case 7:
+        SPIDER_PARAM_INT_WITH_MAX("bg_mode", bg_mode, 0, 1);
+        error_num = param_string_parse.print_param_error();
+        goto error;
+#endif
+      case 8:
+        SPIDER_PARAM_STR("database", database);
+        error_num = param_string_parse.print_param_error();
+        goto error;
+      case 15:
+        SPIDER_PARAM_INT_WITH_MAX("use_transaction", use_transaction, 0, 1);
+        error_num = param_string_parse.print_param_error();
+        goto error;
+      case 16:
+        SPIDER_PARAM_LONGLONG("bulk_insert_rows", bulk_insert_rows, 1);
+        error_num = param_string_parse.print_param_error();
+        goto error;
+      case 17:
+        SPIDER_PARAM_INT_WITH_MAX(
+          "use_table_charset", use_table_charset, 0, 1);
+        error_num = param_string_parse.print_param_error();
+        goto error;
+      case 20:
+        SPIDER_PARAM_INT("bulk_insert_interval", bulk_insert_interval, 0);
+        error_num = param_string_parse.print_param_error();
+        goto error;
+      default:
+        error_num = param_string_parse.print_param_error();
+        goto error;
+    }
+
+    /* Verify that the remainder of the parameter value is whitespace */
+    if ((error_num = param_string_parse.has_extra_parameter_values()))
+      goto error;
+  }
+
+set_default:
+  if ((error_num = spider_udf_set_copy_tables_param_default(
+    copy_tables
+  )))
+    goto error;
+
+  if (param_string)
+    spider_free(spider_current_trx, param_string, MYF(0));
+  DBUG_RETURN(0);
+
+error:
+  if (param_string)
+    spider_free(spider_current_trx, param_string, MYF(0));
+error_alloc_param_string:
+  DBUG_RETURN(error_num);
+}
+
+int spider_udf_get_copy_tgt_tables(
+  THD *thd,
+  SPIDER_COPY_TABLES *copy_tables,
+  MEM_ROOT *mem_root,
+  bool need_lock
+) {
+  int error_num, roop_count;
+  TABLE *table_tables = NULL;
+  SPIDER_Open_tables_backup open_tables_backup;
+  char table_key[MAX_KEY_LENGTH];
+  SPIDER_COPY_TABLE_CONN *table_conn = NULL, *src_table_conn_prev = NULL,
+    *dst_table_conn_prev = NULL;
+  SPIDER_SHARE *tmp_share;
+  char **tmp_connect_info;
+  uint *tmp_connect_info_length;
+  long *tmp_long;
+  longlong *tmp_longlong;
+  DBUG_ENTER("spider_udf_get_copy_tgt_tables");
+
+  if (
+    !(table_tables = spider_open_sys_table(
+      thd, SPIDER_SYS_TABLES_TABLE_NAME_STR,
+      SPIDER_SYS_TABLES_TABLE_NAME_LEN, FALSE, &open_tables_backup,
+      need_lock, &error_num))
+  ) {
+    my_error(error_num, MYF(0));
+    goto error;
+  }
+  spider_store_db_and_table_name(table_tables,
+    copy_tables->spider_db_name, copy_tables->spider_db_name_length,
+    copy_tables->spider_table_name, copy_tables->spider_table_name_length
+  );
+  if ((error_num = spider_get_sys_table_by_idx(table_tables, table_key,
+    table_tables->s->primary_key, 2)))
+  {
+    table_tables->file->print_error(error_num, MYF(0));
+    goto error;
+  }
+  do {
+    if (!(table_conn = (SPIDER_COPY_TABLE_CONN *)
+      spider_bulk_malloc(spider_current_trx, 25, MYF(MY_WME | MY_ZEROFILL),
+        &table_conn, (uint) (sizeof(SPIDER_COPY_TABLE_CONN)),
+        &tmp_share, (uint) (sizeof(SPIDER_SHARE)),
+        &tmp_connect_info,
+          (uint) (sizeof(char *) * SPIDER_TMP_SHARE_CHAR_PTR_COUNT),
+        &tmp_connect_info_length,
+          (uint) (sizeof(uint) * SPIDER_TMP_SHARE_UINT_COUNT),
+        &tmp_long, (uint) (sizeof(long) * SPIDER_TMP_SHARE_LONG_COUNT),
+        &tmp_longlong,
+          (uint) (sizeof(longlong) * SPIDER_TMP_SHARE_LONGLONG_COUNT),
+        NullS))
+    ) {
+      spider_sys_index_end(table_tables);
+      error_num = HA_ERR_OUT_OF_MEM;
+      my_error(HA_ERR_OUT_OF_MEM, MYF(0));
+      goto error;
+    }
+    spider_set_tmp_share_pointer(tmp_share, tmp_connect_info,
+      tmp_connect_info_length, tmp_long, tmp_longlong);
+    tmp_share->link_statuses[0] = -1;
+    table_conn->share = tmp_share;
+
+    if (
+      (error_num = spider_get_sys_tables_connect_info(
+        table_tables, tmp_share, 0, mem_root)) ||
+      (error_num = spider_get_sys_tables_link_status(
+        table_tables, tmp_share, 0, mem_root)) ||
+      (error_num = spider_get_sys_tables_link_idx(
+        table_tables, &table_conn->link_idx, mem_root))
+    ) {
+      table_tables->file->print_error(error_num, MYF(0));
+      spider_sys_index_end(table_tables);
+      goto error;
+    }
+    if (
+      (error_num = spider_set_connect_info_default(
+        tmp_share,
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+        NULL,
+        NULL,
+#endif
+        NULL
+      )) ||
+      (error_num = spider_set_connect_info_default_db_table(
+        tmp_share,
+        copy_tables->spider_db_name, copy_tables->spider_db_name_length,
+        copy_tables->spider_table_name, copy_tables->spider_table_name_length
+      )) ||
+      (error_num = spider_create_conn_keys(tmp_share)) ||
+      (error_num = spider_create_tmp_dbton_share(tmp_share))
+    ) {
+      spider_sys_index_end(table_tables);
+      goto error;
+    }
+
+/*
+    if (spider_db_create_table_names_str(tmp_share))
+    {
+      spider_sys_index_end(table_tables);
+      error_num = HA_ERR_OUT_OF_MEM;
+      my_error(HA_ERR_OUT_OF_MEM, MYF(0));
+      goto error;
+    }
+*/
+
+    for (roop_count = 0; roop_count < (int) tmp_share->use_dbton_count;
+      roop_count++)
+    {
+      uint dbton_id = tmp_share->use_dbton_ids[roop_count];
+
+      if (!spider_dbton[dbton_id].create_db_copy_table)
+        continue;
+
+      if (!(table_conn->copy_table =
+        spider_dbton[dbton_id].create_db_copy_table(
+        tmp_share->dbton_share[dbton_id])))
+      {
+        spider_sys_index_end(table_tables);
+        error_num = HA_ERR_OUT_OF_MEM;
+        my_error(HA_ERR_OUT_OF_MEM, MYF(0));
+        goto error;
+      }
+      if ((error_num = table_conn->copy_table->init()))
+        goto error;
+      break;
+    }
+
+    if (
+      !copy_tables->use_auto_mode[0]
+    ) {
+      for (roop_count = 0; roop_count < copy_tables->link_idx_count[0];
+        roop_count++)
+      {
+        if (table_conn->link_idx == copy_tables->link_idxs[0][roop_count])
+        {
+          if (tmp_share->link_statuses[0] == SPIDER_LINK_STATUS_NG)
+          {
+            spider_sys_index_end(table_tables);
+            error_num = ER_SPIDER_UDF_COPY_TABLE_SRC_NG_STATUS_NUM;
+            my_printf_error(ER_SPIDER_UDF_COPY_TABLE_SRC_NG_STATUS_NUM,
+              ER_SPIDER_UDF_COPY_TABLE_SRC_NG_STATUS_STR, MYF(0));
+            goto error;
+          }
+          if (src_table_conn_prev)
+            src_table_conn_prev->next = table_conn;
+          else
+            copy_tables->table_conn[0] = table_conn;
+          src_table_conn_prev = table_conn;
+          table_conn = NULL;
+          break;
+        }
+      }
+    }
+    if (table_conn && !copy_tables->use_auto_mode[1])
+    {
+      for (roop_count = 0; roop_count < copy_tables->link_idx_count[1];
+        roop_count++)
+      {
+        if (table_conn->link_idx == copy_tables->link_idxs[1][roop_count])
+        {
+          if (tmp_share->link_statuses[0] == SPIDER_LINK_STATUS_NG)
+          {
+            spider_sys_index_end(table_tables);
+            error_num = ER_SPIDER_UDF_COPY_TABLE_SRC_NG_STATUS_NUM;
+            my_printf_error(ER_SPIDER_UDF_COPY_TABLE_SRC_NG_STATUS_NUM,
+              ER_SPIDER_UDF_COPY_TABLE_SRC_NG_STATUS_STR, MYF(0));
+            goto error;
+          }
+          if (dst_table_conn_prev)
+            dst_table_conn_prev->next = table_conn;
+          else
+            copy_tables->table_conn[1] = table_conn;
+          dst_table_conn_prev = table_conn;
+          table_conn = NULL;
+          break;
+        }
+      }
+    }
+    if (table_conn && copy_tables->use_auto_mode[0] &&
+      tmp_share->link_statuses[0] == SPIDER_LINK_STATUS_OK)
+    {
+      if (src_table_conn_prev)
+        src_table_conn_prev->next = table_conn;
+      else
+        copy_tables->table_conn[0] = table_conn;
+      src_table_conn_prev = table_conn;
+      copy_tables->link_idx_count[0]++;
+      table_conn = NULL;
+    }
+    if (table_conn && copy_tables->use_auto_mode[1] &&
+      tmp_share->link_statuses[0] == SPIDER_LINK_STATUS_RECOVERY)
+    {
+      if (dst_table_conn_prev)
+        dst_table_conn_prev->next = table_conn;
+      else
+        copy_tables->table_conn[1] = table_conn;
+      dst_table_conn_prev = table_conn;
+      copy_tables->link_idx_count[1]++;
+      table_conn = NULL;
+    }
+    if (table_conn)
+    {
+      spider_free_tmp_dbton_share(tmp_share);
+      spider_free_tmp_share_alloc(tmp_share);
+      if (table_conn->copy_table)
+        delete table_conn->copy_table;
+      spider_free(spider_current_trx, table_conn, MYF(0));
+      table_conn = NULL;
+    }
+
+    error_num = spider_sys_index_next_same(table_tables, table_key);
+  } while (error_num == 0);
+  spider_sys_index_end(table_tables);
+  spider_close_sys_table(thd, table_tables,
+    &open_tables_backup, need_lock);
+  table_tables = NULL;
+
+  if (!copy_tables->table_conn[0])
+  {
+    error_num = ER_SPIDER_UDF_COPY_TABLE_SRC_NOT_FOUND_NUM;
+    my_printf_error(ER_SPIDER_UDF_COPY_TABLE_SRC_NOT_FOUND_NUM,
+      ER_SPIDER_UDF_COPY_TABLE_SRC_NOT_FOUND_STR, MYF(0));
+    goto error;
+  }
+  if (!copy_tables->table_conn[1])
+  {
+    error_num = ER_SPIDER_UDF_COPY_TABLE_DST_NOT_FOUND_NUM;
+    my_printf_error(ER_SPIDER_UDF_COPY_TABLE_DST_NOT_FOUND_NUM,
+      ER_SPIDER_UDF_COPY_TABLE_DST_NOT_FOUND_STR, MYF(0));
+    goto error;
+  }
+
+  DBUG_RETURN(0);
+
+error:
+  if (table_tables)
+    spider_close_sys_table(thd, table_tables,
+      &open_tables_backup, need_lock);
+  if (table_conn)
+  {
+    spider_free_tmp_dbton_share(tmp_share);
+    spider_free_tmp_share_alloc(tmp_share);
+    if (table_conn->copy_table)
+      delete table_conn->copy_table;
+    spider_free(spider_current_trx, table_conn, MYF(0));
+  }
+  DBUG_RETURN(error_num);
+}
+
+int spider_udf_get_copy_tgt_conns(
+  SPIDER_COPY_TABLES *copy_tables
+) {
+  int error_num, roop_count;
+  SPIDER_TRX *trx = copy_tables->trx;
+  SPIDER_SHARE *share;
+  SPIDER_COPY_TABLE_CONN *table_conn;
+  DBUG_ENTER("spider_udf_get_copy_tgt_conns");
+  for (roop_count = 0; roop_count < 2; roop_count++)
+  {
+    table_conn = copy_tables->table_conn[roop_count];
+    while (table_conn)
+    {
+      share = table_conn->share;
+      if (
+        !(table_conn->conn = spider_get_conn(
+          share, 0, share->conn_keys[0], trx, NULL, FALSE, FALSE,
+          SPIDER_CONN_KIND_MYSQL, &error_num))
+      ) {
+        my_error(ER_CONNECT_TO_FOREIGN_DATA_SOURCE, MYF(0), share->server_names[0]);
+        DBUG_RETURN(ER_CONNECT_TO_FOREIGN_DATA_SOURCE);
+      }
+      table_conn->conn->error_mode = 0;
+      table_conn = table_conn->next;
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+void spider_udf_free_copy_tables_alloc(
+  SPIDER_COPY_TABLES *copy_tables
+) {
+  int roop_count;
+  SPIDER_COPY_TABLE_CONN *table_conn, *table_conn_next;
+  DBUG_ENTER("spider_udf_free_copy_tables_alloc");
+  for (roop_count = 0; roop_count < 2; roop_count++)
+  {
+    table_conn = copy_tables->table_conn[roop_count];
+    while (table_conn)
+    {
+      table_conn_next = table_conn->next;
+      spider_free_tmp_dbton_share(table_conn->share);
+      spider_free_tmp_share_alloc(table_conn->share);
+      if (table_conn->copy_table)
+        delete table_conn->copy_table;
+      spider_free(spider_current_trx, table_conn, MYF(0));
+      table_conn = table_conn_next;
+    }
+  }
+  if (copy_tables->link_idxs[0])
+    spider_free(spider_current_trx, copy_tables->link_idxs[0], MYF(0));
+  if (copy_tables->database)
+    spider_free(spider_current_trx, copy_tables->database, MYF(0));
+  spider_free(spider_current_trx, copy_tables, MYF(0));
+  DBUG_VOID_RETURN;
+}
+
+int spider_udf_copy_tables_create_table_list(
+  SPIDER_COPY_TABLES *copy_tables,
+  char *spider_table_name,
+  uint spider_table_name_length,
+  char *src_link_idx_list,
+  uint src_link_idx_list_length,
+  char *dst_link_idx_list,
+  uint dst_link_idx_list_length
+) {
+  int roop_count, roop_count2, length;
+  char *tmp_ptr, *tmp_ptr2, *tmp_ptr3, *tmp_name_ptr;
+  DBUG_ENTER("spider_udf_copy_tables_create_table_list");
+
+  if (!spider_table_name_length)
+  {
+    my_printf_error(ER_SPIDER_BLANK_UDF_ARGUMENT_NUM,
+      ER_SPIDER_BLANK_UDF_ARGUMENT_STR, MYF(0), 1);
+    DBUG_RETURN(ER_SPIDER_BLANK_UDF_ARGUMENT_NUM);
+  }
+
+  for (roop_count2 = 0; roop_count2 < 2; roop_count2++)
+  {
+    if (roop_count2 == 0)
+      tmp_ptr = src_link_idx_list;
+    else
+      tmp_ptr = dst_link_idx_list;
+
+    while (*tmp_ptr == ' ')
+      tmp_ptr++;
+    if (*tmp_ptr)
+      copy_tables->link_idx_count[roop_count2] = 1;
+    else {
+      /* use auto detect */
+      copy_tables->use_auto_mode[roop_count2] = TRUE;
+      copy_tables->link_idx_count[roop_count2] = 0;
+      continue;
+    }
+
+    while (TRUE)
+    {
+      if ((tmp_ptr2 = strchr(tmp_ptr, ' ')))
+      {
+        copy_tables->link_idx_count[roop_count2]++;
+        tmp_ptr = tmp_ptr2 + 1;
+        while (*tmp_ptr == ' ')
+          tmp_ptr++;
+      } else
+        break;
+    }
+  }
+
+  if (!(copy_tables->link_idxs[0] = (int *)
+    spider_bulk_malloc(spider_current_trx, 26, MYF(MY_WME | MY_ZEROFILL),
+      &copy_tables->link_idxs[0],
+        (uint) (sizeof(int) * copy_tables->link_idx_count[0]),
+      &copy_tables->link_idxs[1],
+        (uint) (sizeof(int) * copy_tables->link_idx_count[1]),
+      &tmp_name_ptr, (uint) (sizeof(char) * (
+        spider_table_name_length * 2 + copy_tables->database_length + 3
+      )),
+      NullS))
+  ) {
+    my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+
+  copy_tables->spider_db_name = tmp_name_ptr;
+  if ((tmp_ptr3 = strchr(spider_table_name, '.')))
+  {
+    /* exist database name */
+    *tmp_ptr3 = '\0';
+    length = strlen(spider_table_name);
+    memcpy(tmp_name_ptr, spider_table_name, length + 1);
+    copy_tables->spider_db_name_length = length;
+    tmp_name_ptr += length + 1;
+    tmp_ptr3++;
+  } else {
+    memcpy(tmp_name_ptr, copy_tables->database,
+      copy_tables->database_length + 1);
+    copy_tables->spider_db_name_length = copy_tables->database_length;
+    tmp_name_ptr += copy_tables->database_length + 1;
+    tmp_ptr3 = spider_table_name;
+    length = -1;
+  }
+  copy_tables->spider_table_name = tmp_name_ptr;
+  length = spider_table_name_length - length - 1;
+  memcpy(tmp_name_ptr, tmp_ptr3, length + 1);
+  copy_tables->spider_table_name_length = length;
+  tmp_name_ptr += length + 1;
+  memcpy(tmp_name_ptr, tmp_ptr3, length + 1);
+  copy_tables->spider_real_table_name = tmp_name_ptr;
+  if ((tmp_ptr2 = strstr(tmp_name_ptr, "#P#")))
+  {
+    *tmp_ptr2 = '\0';
+    copy_tables->spider_real_table_name_length = strlen(tmp_name_ptr);
+  } else
+    copy_tables->spider_real_table_name_length = length;
+
+  DBUG_PRINT("info",("spider spider_db=%s", copy_tables->spider_db_name));
+  DBUG_PRINT("info",("spider spider_table_name=%s",
+    copy_tables->spider_table_name));
+  DBUG_PRINT("info",("spider spider_real_table_name=%s",
+    copy_tables->spider_real_table_name));
+
+  for (roop_count2 = 0; roop_count2 < 2; roop_count2++)
+  {
+    if (roop_count2 == 0)
+      tmp_ptr = src_link_idx_list;
+    else
+      tmp_ptr = dst_link_idx_list;
+
+    while (*tmp_ptr == ' ')
+      tmp_ptr++;
+    roop_count = 0;
+    while (*tmp_ptr)
+    {
+      if ((tmp_ptr2 = strchr(tmp_ptr, ' ')))
+        *tmp_ptr2 = '\0';
+
+      copy_tables->link_idxs[roop_count2][roop_count] = atoi(tmp_ptr);
+
+      DBUG_PRINT("info",("spider link_idx[%d][%d]=%d",
+        roop_count2, roop_count,
+        copy_tables->link_idxs[roop_count2][roop_count]));
+      if (!tmp_ptr2)
+        break;
+
+      tmp_ptr = tmp_ptr2 + 1;
+      while (*tmp_ptr == ' ')
+        tmp_ptr++;
+      roop_count++;
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+int spider_udf_bg_copy_exec_sql(
+  SPIDER_COPY_TABLE_CONN *table_conn
+) {
+  int error_num;
+  SPIDER_CONN *conn = table_conn->conn;
+  ha_spider *spider = table_conn->spider;
+  spider_db_handler *dbton_hdl = spider->dbton_handler[conn->dbton_id];
+  DBUG_ENTER("spider_udf_bg_copy_exec_sql");
+  if ((error_num = spider_create_conn_thread(conn)))
+    DBUG_RETURN(error_num);
+  if ((error_num = dbton_hdl->set_sql_for_exec(table_conn->copy_table,
+    SPIDER_SQL_TYPE_INSERT_SQL)))
+    DBUG_RETURN(error_num);
+  pthread_mutex_lock(&conn->bg_conn_mutex);
+  conn->bg_target = spider;
+  conn->bg_error_num = &table_conn->bg_error_num;
+  conn->bg_sql_type = SPIDER_SQL_TYPE_INSERT_SQL;
+  conn->link_idx = 0;
+  conn->bg_exec_sql = TRUE;
+  conn->bg_caller_sync_wait = TRUE;
+  pthread_mutex_lock(&conn->bg_conn_sync_mutex);
+  pthread_cond_signal(&conn->bg_conn_cond);
+  pthread_mutex_unlock(&conn->bg_conn_mutex);
+  pthread_cond_wait(&conn->bg_conn_sync_cond, &conn->bg_conn_sync_mutex);
+  pthread_mutex_unlock(&conn->bg_conn_sync_mutex);
+  conn->bg_caller_sync_wait = FALSE;
+  DBUG_RETURN(0);
+}
+#endif
+
+long long spider_copy_tables_body(
+  UDF_INIT *initid,
+  UDF_ARGS *args,
+  char *is_null,
+  char *error
+) {
+  int error_num, roop_count, all_link_cnt = 0, use_table_charset;
+  SPIDER_COPY_TABLES *copy_tables = NULL;
+  THD *thd = current_thd;
+  TABLE_LIST *table_list = NULL;
+  TABLE *table;
+  TABLE_SHARE *table_share;
+  KEY *key_info;
+  ha_spider *spider = NULL, *tmp_spider;
+  spider_string *tmp_sql = NULL;
+  SPIDER_COPY_TABLE_CONN *table_conn, *src_tbl_conn, *dst_tbl_conn;
+  SPIDER_CONN *tmp_conn;
+  SPIDER_WIDE_HANDLER *wide_handler;
+  spider_db_copy_table *select_ct, *insert_ct;
+  MEM_ROOT mem_root;
+  longlong bulk_insert_rows;
+  Reprepare_observer *reprepare_observer_backup;
+  uint tmp_conn_link_idx = 0;
+  DBUG_ENTER("spider_copy_tables_body");
+  if (
+    thd->open_tables != 0 ||
+    thd->handler_tables_hash.records != 0 ||
+    thd->derived_tables != 0 ||
+    thd->lock != 0 ||
+#if MYSQL_VERSION_ID < 50500
+    thd->locked_tables != 0 ||
+    thd->prelocked_mode != NON_PRELOCKED
+#else
+    thd->locked_tables_list.locked_tables() ||
+    thd->locked_tables_mode != LTM_NONE
+#endif
+  ) {
+    if (thd->open_tables != 0)
+    {
+      my_printf_error(ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_NUM,
+        ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_STR_WITH_PTR, MYF(0),
+        "thd->open_tables", thd->open_tables);
+    } else if (thd->handler_tables_hash.records != 0)
+    {
+      my_printf_error(ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_NUM,
+        ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_STR_WITH_NUM, MYF(0),
+        "thd->handler_tables_hash.records",
+        (longlong) thd->handler_tables_hash.records);
+    } else if (thd->derived_tables != 0)
+    {
+      my_printf_error(ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_NUM,
+        ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_STR_WITH_PTR, MYF(0),
+        "thd->derived_tables", thd->derived_tables);
+    } else if (thd->lock != 0)
+    {
+      my_printf_error(ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_NUM,
+        ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_STR_WITH_PTR, MYF(0),
+        "thd->lock", thd->lock);
+#if MYSQL_VERSION_ID < 50500
+    } else if (thd->locked_tables != 0)
+    {
+      my_printf_error(ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_NUM,
+        ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_STR_WITH_PTR, MYF(0),
+        "thd->locked_tables", thd->locked_tables);
+    } else if (thd->prelocked_mode != NON_PRELOCKED)
+    {
+      my_printf_error(ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_NUM,
+        ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_STR_WITH_NUM, MYF(0),
+        "thd->prelocked_mode", (longlong) thd->prelocked_mode);
+#else
+    } else if (thd->locked_tables_list.locked_tables())
+    {
+      my_printf_error(ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_NUM,
+        ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_STR_WITH_PTR, MYF(0),
+        "thd->locked_tables_list.locked_tables()",
+        thd->locked_tables_list.locked_tables());
+    } else if (thd->locked_tables_mode != LTM_NONE)
+    {
+      my_printf_error(ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_NUM,
+        ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_STR_WITH_NUM, MYF(0),
+        "thd->locked_tables_mode", (longlong) thd->locked_tables_mode);
+#endif
+    }
+    goto error;
+  }
+
+  if (!(copy_tables = (SPIDER_COPY_TABLES *)
+    spider_bulk_malloc(spider_current_trx, 27, MYF(MY_WME | MY_ZEROFILL),
+      &copy_tables, (uint) (sizeof(SPIDER_COPY_TABLES)),
+      NullS))
+  ) {
+    my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+    goto error;
+  }
+  if (!(copy_tables->trx = spider_get_trx(thd, TRUE, &error_num)))
+  {
+    my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+    goto error;
+  }
+
+  if (args->arg_count == 4)
+  {
+    if (spider_udf_parse_copy_tables_param(
+      copy_tables,
+      args->args[3] ? args->args[3] : (char *) "",
+      args->args[3] ? args->lengths[3] : 0
+    ))
+      goto error;
+  } else {
+    if (spider_udf_parse_copy_tables_param(
+      copy_tables,
+      (char *) "",
+      0
+    ))
+      goto error;
+  }
+  if (
+    spider_udf_copy_tables_create_table_list(
+      copy_tables,
+      args->args[0],
+      args->lengths[0],
+      args->args[1] ? args->args[1] : (char *) "",
+      args->args[1] ? args->lengths[1] : 0,
+      args->args[2] ? args->args[2] : (char *) "",
+      args->args[2] ? args->lengths[2] : 0
+    )
+  )
+    goto error;
+
+  SPD_INIT_ALLOC_ROOT(&mem_root, 4096, 0, MYF(MY_WME));
+  if (
+    spider_udf_get_copy_tgt_tables(
+      thd,
+      copy_tables,
+      &mem_root,
+      TRUE
+    )
+  ) {
+    free_root(&mem_root, MYF(0));
+    goto error;
+  }
+  free_root(&mem_root, MYF(0));
+
+  if (
+    spider_udf_get_copy_tgt_conns(copy_tables)
+  )
+    goto error;
+
+  table_list = &copy_tables->spider_table_list;
+  SPIDER_TABLE_LIST_db_str(table_list) = copy_tables->spider_db_name;
+  SPIDER_TABLE_LIST_db_length(table_list) = copy_tables->spider_db_name_length;
+  SPIDER_TABLE_LIST_alias_str(table_list) =
+    SPIDER_TABLE_LIST_table_name_str(table_list) =
+    copy_tables->spider_real_table_name;
+  SPIDER_TABLE_LIST_table_name_length(table_list) =
+    copy_tables->spider_real_table_name_length;
+#ifdef SPIDER_use_LEX_CSTRING_for_database_tablename_alias
+  SPIDER_TABLE_LIST_alias_length(table_list) =
+    SPIDER_TABLE_LIST_table_name_length(table_list);
+#endif
+  table_list->lock_type = TL_READ;
+
+  DBUG_PRINT("info",("spider db=%s", SPIDER_TABLE_LIST_db_str(table_list)));
+  DBUG_PRINT("info",("spider db_length=%zd", SPIDER_TABLE_LIST_db_length(table_list)));
+  DBUG_PRINT("info",("spider table_name=%s",
+    SPIDER_TABLE_LIST_table_name_str(table_list)));
+  DBUG_PRINT("info",("spider table_name_length=%zd",
+    SPIDER_TABLE_LIST_table_name_length(table_list)));
+  reprepare_observer_backup = thd->m_reprepare_observer;
+  thd->m_reprepare_observer = NULL;
+  copy_tables->trx->trx_start = TRUE;
+  copy_tables->trx->updated_in_this_trx = FALSE;
+  DBUG_PRINT("info",("spider trx->updated_in_this_trx=FALSE"));
+#if MYSQL_VERSION_ID < 50500
+  if (open_and_lock_tables(thd, table_list))
+#else
+    MDL_REQUEST_INIT(&table_list->mdl_request,
+    MDL_key::TABLE,
+    SPIDER_TABLE_LIST_db_str(table_list),
+    SPIDER_TABLE_LIST_table_name_str(table_list),
+    MDL_SHARED_READ,
+    MDL_TRANSACTION
+  );
+  if (open_and_lock_tables(thd, table_list, FALSE, 0))
+#endif
+  {
+    thd->m_reprepare_observer = reprepare_observer_backup;
+    copy_tables->trx->trx_start = FALSE;
+    copy_tables->trx->updated_in_this_trx = FALSE;
+    DBUG_PRINT("info",("spider trx->updated_in_this_trx=FALSE"));
+    my_printf_error(ER_SPIDER_UDF_CANT_OPEN_TABLE_NUM,
+      ER_SPIDER_UDF_CANT_OPEN_TABLE_STR, MYF(0),
+      SPIDER_TABLE_LIST_db_str(table_list),
+      SPIDER_TABLE_LIST_table_name_str(table_list));
+    goto error;
+  }
+  thd->m_reprepare_observer = reprepare_observer_backup;
+  copy_tables->trx->trx_start = FALSE;
+  copy_tables->trx->updated_in_this_trx = FALSE;
+  DBUG_PRINT("info",("spider trx->updated_in_this_trx=FALSE"));
+
+  table = table_list->table;
+  table_share = table->s;
+  if (table_share->primary_key == MAX_KEY)
+  {
+    my_printf_error(ER_SPIDER_UDF_COPY_TABLE_NEED_PK_NUM,
+      ER_SPIDER_UDF_COPY_TABLE_NEED_PK_STR, MYF(0),
+      SPIDER_TABLE_LIST_db_str(table_list),
+      SPIDER_TABLE_LIST_table_name_str(table_list));
+    goto error;
+  }
+  key_info = &table->key_info[table_share->primary_key];
+
+  use_table_charset = spider_param_use_table_charset(
+    copy_tables->use_table_charset);
+  if (use_table_charset)
+    copy_tables->access_charset = table_share->table_charset;
+  else
+    copy_tables->access_charset = system_charset_info;
+
+  bulk_insert_rows = spider_param_udf_ct_bulk_insert_rows(
+    copy_tables->bulk_insert_rows);
+  for (src_tbl_conn = copy_tables->table_conn[0]; src_tbl_conn;
+    src_tbl_conn = src_tbl_conn->next)
+  {
+    select_ct = src_tbl_conn->copy_table;
+    src_tbl_conn->share->access_charset = copy_tables->access_charset;
+    select_ct->set_sql_charset(copy_tables->access_charset);
+    if (
+      select_ct->append_select_str() ||
+      select_ct->append_table_columns(table_share)
+    ) {
+      my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+      goto error;
+    }
+
+    if (
+      select_ct->append_from_str() ||
+      select_ct->append_table_name(0)
+    ) {
+      my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+      goto error;
+    }
+
+    select_ct->set_sql_pos();
+
+    if (
+      select_ct->append_key_order_str(key_info, 0, FALSE) ||
+      select_ct->append_limit(0, bulk_insert_rows)
+    ) {
+      my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+      goto error;
+    }
+
+    if (
+      copy_tables->use_transaction &&
+      select_ct->append_select_lock_str(SPIDER_LOCK_MODE_SHARED)
+    ) {
+      my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+      goto error;
+    }
+  }
+
+  for (dst_tbl_conn = copy_tables->table_conn[1]; dst_tbl_conn;
+    dst_tbl_conn = dst_tbl_conn->next)
+  {
+    insert_ct = dst_tbl_conn->copy_table;
+    dst_tbl_conn->share->access_charset = copy_tables->access_charset;
+    insert_ct->set_sql_charset(copy_tables->access_charset);
+    if (
+      insert_ct->append_insert_str(SPIDER_DB_INSERT_IGNORE) ||
+      insert_ct->append_into_str() ||
+      insert_ct->append_table_name(0) ||
+      insert_ct->append_open_paren_str() ||
+      insert_ct->append_table_columns(table_share) ||
+      insert_ct->append_values_str()
+    ) {
+      my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+      goto error;
+    }
+
+    insert_ct->set_sql_pos();
+  }
+
+  all_link_cnt =
+    copy_tables->link_idx_count[0] + copy_tables->link_idx_count[1];
+  if (
+    !(tmp_sql = new spider_string[all_link_cnt]) ||
+    !(spider = new ha_spider[all_link_cnt])
+  ) {
+    my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+    goto error;
+  }
+  for (roop_count = 0; roop_count < all_link_cnt; roop_count++)
+  {
+    spider[roop_count].conns = NULL;
+    spider[roop_count].change_table_ptr(table, table_share);
+  }
+  for (roop_count = 0, table_conn = copy_tables->table_conn[0];
+    table_conn; roop_count++, table_conn = table_conn->next)
+  {
+    tmp_spider = &spider[roop_count];
+    if (!(tmp_spider->dbton_handler = (spider_db_handler **)
+      spider_bulk_alloc_mem(spider_current_trx, 205,
+        __func__, __FILE__, __LINE__, MYF(MY_WME | MY_ZEROFILL),
+        &tmp_spider->dbton_handler,
+          sizeof(spider_db_handler *) * SPIDER_DBTON_SIZE,
+        &wide_handler, sizeof(SPIDER_WIDE_HANDLER),
+        NullS))
+    ) {
+      my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+      goto error;
+    }
+    tmp_spider->share = table_conn->share;
+    tmp_spider->wide_handler = wide_handler;
+    wide_handler->trx = copy_tables->trx;
+/*
+    if (spider_db_append_set_names(table_conn->share))
+    {
+      my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+      goto error_append_set_names;
+    }
+*/
+    tmp_spider->conns = &table_conn->conn;
+    tmp_sql[roop_count].init_calc_mem(122);
+    tmp_sql[roop_count].set_charset(copy_tables->access_charset);
+    tmp_spider->result_list.sqls = &tmp_sql[roop_count];
+    tmp_spider->need_mons = &table_conn->need_mon;
+    tmp_spider->wide_handler->lock_type = TL_READ;
+    tmp_spider->conn_link_idx = &tmp_conn_link_idx;
+    uint dbton_id = tmp_spider->share->use_dbton_ids[0];
+    if (!(tmp_spider->dbton_handler[dbton_id] =
+      spider_dbton[dbton_id].create_db_handler(tmp_spider,
+      tmp_spider->share->dbton_share[dbton_id])))
+    {
+      my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+      goto error_create_dbton_handler;
+    }
+    if ((error_num = tmp_spider->dbton_handler[dbton_id]->init()))
+    {
+      goto error_init_dbton_handler;
+    }
+    table_conn->spider = tmp_spider;
+  }
+  for (table_conn = copy_tables->table_conn[1];
+    table_conn; roop_count++, table_conn = table_conn->next)
+  {
+    tmp_spider = &spider[roop_count];
+    if (!(tmp_spider->dbton_handler = (spider_db_handler **)
+      spider_bulk_alloc_mem(spider_current_trx, 206,
+        __func__, __FILE__, __LINE__, MYF(MY_WME | MY_ZEROFILL),
+        &tmp_spider->dbton_handler,
+          sizeof(spider_db_handler *) * SPIDER_DBTON_SIZE,
+        &wide_handler, sizeof(SPIDER_WIDE_HANDLER),
+        NullS))
+    ) {
+      my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+      goto error;
+    }
+    tmp_spider->share = table_conn->share;
+    tmp_spider->wide_handler = wide_handler;
+    wide_handler->trx = copy_tables->trx;
+/*
+    if (spider_db_append_set_names(table_conn->share))
+    {
+      my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+      goto error_append_set_names;
+    }
+*/
+    tmp_spider->conns = &table_conn->conn;
+    tmp_sql[roop_count].init_calc_mem(201);
+    tmp_sql[roop_count].set_charset(copy_tables->access_charset);
+    tmp_spider->result_list.sqls = &tmp_sql[roop_count];
+    tmp_spider->need_mons = &table_conn->need_mon;
+    tmp_spider->wide_handler->lock_type = TL_WRITE;
+    tmp_spider->conn_link_idx = &tmp_conn_link_idx;
+    uint dbton_id = tmp_spider->share->use_dbton_ids[0];
+    if (!(tmp_spider->dbton_handler[dbton_id] =
+      spider_dbton[dbton_id].create_db_handler(tmp_spider,
+      tmp_spider->share->dbton_share[dbton_id])))
+    {
+      my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+      goto error_create_dbton_handler;
+    }
+    if ((error_num = tmp_spider->dbton_handler[dbton_id]->init()))
+    {
+      goto error_init_dbton_handler;
+    }
+    table_conn->spider = tmp_spider;
+  }
+
+  if ((error_num = spider_db_udf_copy_tables(copy_tables, spider, table,
+    bulk_insert_rows)))
+    goto error_db_udf_copy_tables;
+
+/*
+  for (table_conn = copy_tables->table_conn[0];
+    table_conn; table_conn = table_conn->next)
+    spider_db_free_set_names(table_conn->share);
+  for (table_conn = copy_tables->table_conn[1];
+    table_conn; table_conn = table_conn->next)
+    spider_db_free_set_names(table_conn->share);
+*/
+  if (table_list->table)
+  {
+#if MYSQL_VERSION_ID < 50500
+    ha_autocommit_or_rollback(thd, 0);
+#else
+    (thd->is_error() ? trans_rollback_stmt(thd) : trans_commit_stmt(thd));
+#endif
+    close_thread_tables(thd);
+  }
+  if (spider)
+  {
+    for (roop_count = 0; roop_count < all_link_cnt; roop_count++)
+    {
+      if (spider[roop_count].share && spider[roop_count].dbton_handler)
+      {
+        uint dbton_id = spider[roop_count].share->use_dbton_ids[0];
+        if (spider[roop_count].dbton_handler[dbton_id])
+          delete spider[roop_count].dbton_handler[dbton_id];
+        spider_free(spider_current_trx, spider[roop_count].dbton_handler,
+          MYF(0));
+      }
+    }
+    delete [] spider;
+  }
+  if (tmp_sql)
+    delete [] tmp_sql;
+  spider_udf_free_copy_tables_alloc(copy_tables);
+
+  DBUG_RETURN(1);
+
+error_db_udf_copy_tables:
+error_create_dbton_handler:
+error_init_dbton_handler:
+/*
+error_append_set_names:
+*/
+/*
+  for (table_conn = copy_tables->table_conn[0];
+    table_conn; table_conn = table_conn->next)
+    spider_db_free_set_names(table_conn->share);
+  for (table_conn = copy_tables->table_conn[1];
+    table_conn; table_conn = table_conn->next)
+    spider_db_free_set_names(table_conn->share);
+*/
+error:
+  if (spider)
+  {
+    for (roop_count = 0; roop_count < all_link_cnt; roop_count++)
+    {
+      tmp_spider = &spider[roop_count];
+      if (tmp_spider->conns)
+      {
+        tmp_conn = tmp_spider->conns[0];
+        if (tmp_conn && tmp_conn->db_conn &&
+          tmp_conn->db_conn->get_lock_table_hash_count()
+        ) {
+          tmp_conn->db_conn->reset_lock_table_hash();
+          tmp_conn->table_lock = 0;
+        }
+      }
+    }
+  }
+  if (table_list && table_list->table)
+  {
+#if MYSQL_VERSION_ID < 50500
+    ha_autocommit_or_rollback(thd, 0);
+#else
+    (thd->is_error() ? trans_rollback_stmt(thd) : trans_commit_stmt(thd));
+#endif
+    close_thread_tables(thd);
+  }
+  if (spider)
+  {
+    for (roop_count = 0; roop_count < all_link_cnt; roop_count++)
+    {
+      tmp_spider = &spider[roop_count];
+      if (tmp_spider->share && spider[roop_count].dbton_handler)
+      {
+        uint dbton_id = tmp_spider->share->use_dbton_ids[0];
+        if (tmp_spider->dbton_handler[dbton_id])
+          delete tmp_spider->dbton_handler[dbton_id];
+        spider_free(spider_current_trx, spider[roop_count].dbton_handler,
+          MYF(0));
+      }
+    }
+    delete [] spider;
+  }
+  if (tmp_sql)
+  {
+    delete [] tmp_sql;
+  }
+  if (copy_tables)
+  {
+    spider_udf_free_copy_tables_alloc(copy_tables);
+  }
+  *error = 1;
+  DBUG_RETURN(0);
+}
+
+my_bool spider_copy_tables_init_body(
+  UDF_INIT *initid,
+  UDF_ARGS *args,
+  char *message
+) {
+  DBUG_ENTER("spider_copy_tables_init_body");
+  if (args->arg_count != 3 && args->arg_count != 4)
+  {
+    strcpy(message, "spider_copy_tables() requires 3 or 4 arguments");
+    goto error;
+  }
+  if (
+    args->arg_type[0] != STRING_RESULT ||
+    args->arg_type[1] != STRING_RESULT ||
+    args->arg_type[2] != STRING_RESULT ||
+    (
+      args->arg_count == 4 &&
+      args->arg_type[3] != STRING_RESULT
+    )
+  ) {
+    strcpy(message, "spider_copy_tables() requires string arguments");
+    goto error;
+  }
+  DBUG_RETURN(FALSE);
+
+error:
+  DBUG_RETURN(TRUE);
+}
+
+void spider_copy_tables_deinit_body(
+  UDF_INIT *initid
+) {
+  int error_num;
+  THD *thd = current_thd;
+  SPIDER_TRX *trx;
+  DBUG_ENTER("spider_copy_tables_deinit_body");
+  if (
+    !thd_test_options(thd, OPTION_NOT_AUTOCOMMIT | OPTION_BEGIN) &&
+    (trx = spider_get_trx(thd, TRUE, &error_num))
+  )
+    spider_copy_table_free_trx_conn(trx);
+  DBUG_VOID_RETURN;
+}
diff --git a/storage/spider/spd_copy_tables.h b/storage/spider/spd_copy_tables.h
new file mode 100644
index 00000000..8c06e115
--- /dev/null
+++ b/storage/spider/spd_copy_tables.h
@@ -0,0 +1,55 @@
+/* Copyright (C) 2010-2014 Kentoku Shiba
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+int spider_udf_set_copy_tables_param_default(
+  SPIDER_COPY_TABLES *copy_tables
+);
+
+int spider_udf_parse_copy_tables_param(
+  SPIDER_COPY_TABLES *copy_tables,
+  char *param,
+  int param_length
+);
+
+int spider_udf_get_copy_tgt_tables(
+  THD *thd,
+  SPIDER_COPY_TABLES *copy_tables,
+  MEM_ROOT *mem_root,
+  bool need_lock
+);
+
+int spider_udf_get_copy_tgt_conns(
+  SPIDER_COPY_TABLES *copy_tables
+);
+
+void spider_udf_free_copy_tables_alloc(
+  SPIDER_COPY_TABLES *copy_tables
+);
+
+int spider_udf_copy_tables_create_table_list(
+  SPIDER_COPY_TABLES *copy_tables,
+  char *spider_table_name,
+  uint spider_table_name_length,
+  char *src_link_idx_list,
+  uint src_link_idx_list_length,
+  char *dst_link_idx_list,
+  uint dst_link_idx_list_length
+);
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+int spider_udf_bg_copy_exec_sql(
+  SPIDER_COPY_TABLE_CONN *table_conn
+);
+#endif
diff --git a/storage/spider/spd_db_conn.cc b/storage/spider/spd_db_conn.cc
new file mode 100644
index 00000000..22567d82
--- /dev/null
+++ b/storage/spider/spd_db_conn.cc
@@ -0,0 +1,12836 @@
+/* Copyright (C) 2008-2019 Kentoku Shiba
+   Copyright (C) 2019, 2020, MariaDB Corporation.
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+#define MYSQL_SERVER 1
+#include <my_global.h>
+#include "mysql_version.h"
+#include "spd_environ.h"
+#if MYSQL_VERSION_ID < 50500
+#include "mysql_priv.h"
+#include <mysql/plugin.h>
+#else
+#include "sql_priv.h"
+#include "probes_mysql.h"
+#include "sql_class.h"
+#include "sql_partition.h"
+#include "sql_analyse.h"
+#include "sql_base.h"
+#include "tztime.h"
+#include "errmsg.h"
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+#include "sql_select.h"
+#endif
+#endif
+#include "sql_common.h"
+#include <errmsg.h>
+#include "spd_err.h"
+#include "spd_param.h"
+#include "spd_db_include.h"
+#include "spd_include.h"
+#include "spd_sys_table.h"
+#include "ha_spider.h"
+#include "spd_db_conn.h"
+#include "spd_table.h"
+#include "spd_trx.h"
+#include "spd_conn.h"
+#include "spd_direct_sql.h"
+#include "spd_ping_table.h"
+#include "spd_copy_tables.h"
+#include "spd_malloc.h"
+
+extern handlerton *spider_hton_ptr;
+extern SPIDER_DBTON spider_dbton[SPIDER_DBTON_SIZE];
+
+#define SPIDER_SQL_COALESCE_STR "coalesce("
+#define SPIDER_SQL_COALESCE_LEN (sizeof(SPIDER_SQL_COALESCE_STR) - 1)
+#define SPIDER_SQL_HEX_STR "0x"
+#define SPIDER_SQL_HEX_LEN (sizeof(SPIDER_SQL_HEX_STR) - 1)
+#define SPIDER_SQL_SQL_FORCE_IDX_STR " force index("
+#define SPIDER_SQL_SQL_FORCE_IDX_LEN (sizeof(SPIDER_SQL_SQL_FORCE_IDX_STR) - 1)
+#define SPIDER_SQL_SQL_USE_IDX_STR " use index("
+#define SPIDER_SQL_SQL_USE_IDX_LEN (sizeof(SPIDER_SQL_SQL_USE_IDX_STR) - 1)
+#define SPIDER_SQL_SQL_IGNORE_IDX_STR " ignore index("
+#define SPIDER_SQL_SQL_IGNORE_IDX_LEN (sizeof(SPIDER_SQL_SQL_IGNORE_IDX_STR) - 1)
+
+#define SPIDER_SQL_SET_NAMES_STR "set names "
+#define SPIDER_SQL_SET_NAMES_LEN sizeof(SPIDER_SQL_SET_NAMES_STR) - 1
+
+#define SPIDER_SQL_PING_TABLE_STR "spider_ping_table("
+#define SPIDER_SQL_PING_TABLE_LEN (sizeof(SPIDER_SQL_PING_TABLE_STR) - 1)
+
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+extern HASH spider_open_connections;
+#endif
+pthread_mutex_t spider_open_conn_mutex;
+const char spider_dig_upper[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+
+/* UTC time zone for timestamp columns */
+Time_zone *UTC = 0;
+
+int spider_db_connect(
+  const SPIDER_SHARE *share,
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  int error_num, connect_retry_count;
+  THD* thd = current_thd;
+  longlong connect_retry_interval;
+  DBUG_ENTER("spider_db_connect");
+  DBUG_ASSERT(conn->conn_kind != SPIDER_CONN_KIND_MYSQL || conn->need_mon);
+  DBUG_PRINT("info",("spider link_idx=%d", link_idx));
+  DBUG_PRINT("info",("spider conn=%p", conn));
+
+  if (conn->connect_error)
+  {
+    time_t tmp_time = (time_t) time((time_t*) 0);
+    DBUG_PRINT("info",("spider diff=%f",
+      difftime(tmp_time, conn->connect_error_time)));
+    if (
+      (
+        conn->thd &&
+        conn->thd == conn->connect_error_thd &&
+        conn->thd->query_id == conn->connect_error_query_id
+      ) ||
+      (
+        difftime(tmp_time, conn->connect_error_time) <
+          spider_param_connect_error_interval()
+      )
+    ) {
+      DBUG_PRINT("info",("spider set same error"));
+      if (conn->connect_error_with_message)
+        my_message(conn->connect_error, conn->connect_error_msg, MYF(0));
+      DBUG_RETURN(conn->connect_error);
+    }
+  }
+
+  if (thd)
+  {
+    conn->connect_timeout = spider_param_connect_timeout(thd,
+      share->connect_timeouts[link_idx]);
+    conn->net_read_timeout = spider_param_net_read_timeout(thd,
+      share->net_read_timeouts[link_idx]);
+    conn->net_write_timeout = spider_param_net_write_timeout(thd,
+      share->net_write_timeouts[link_idx]);
+    connect_retry_interval = spider_param_connect_retry_interval(thd);
+    if (conn->disable_connect_retry)
+      connect_retry_count = 0;
+    else
+      connect_retry_count = spider_param_connect_retry_count(thd);
+  } else {
+    conn->connect_timeout = spider_param_connect_timeout(NULL,
+      share->connect_timeouts[link_idx]);
+    conn->net_read_timeout = spider_param_net_read_timeout(NULL,
+      share->net_read_timeouts[link_idx]);
+    conn->net_write_timeout = spider_param_net_write_timeout(NULL,
+      share->net_write_timeouts[link_idx]);
+    connect_retry_interval = spider_param_connect_retry_interval(NULL);
+    connect_retry_count = spider_param_connect_retry_count(NULL);
+  }
+  DBUG_PRINT("info",("spider connect_timeout=%u", conn->connect_timeout));
+  DBUG_PRINT("info",("spider net_read_timeout=%u", conn->net_read_timeout));
+  DBUG_PRINT("info",("spider net_write_timeout=%u", conn->net_write_timeout));
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (conn->conn_kind == SPIDER_CONN_KIND_MYSQL)
+  {
+#endif
+    if ((error_num = spider_reset_conn_setted_parameter(conn, thd)))
+      DBUG_RETURN(error_num);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  }
+#endif
+
+  if (conn->dbton_id == SPIDER_DBTON_SIZE)
+  {
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    if (conn->conn_kind == SPIDER_CONN_KIND_MYSQL)
+    {
+#endif
+      my_printf_error(
+        ER_SPIDER_SQL_WRAPPER_IS_INVALID_NUM,
+        ER_SPIDER_SQL_WRAPPER_IS_INVALID_STR,
+        MYF(0), conn->tgt_wrapper);
+      DBUG_RETURN(ER_SPIDER_SQL_WRAPPER_IS_INVALID_NUM);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    } else {
+      my_printf_error(
+        ER_SPIDER_NOSQL_WRAPPER_IS_INVALID_NUM,
+        ER_SPIDER_NOSQL_WRAPPER_IS_INVALID_STR,
+        MYF(0), conn->tgt_wrapper);
+      DBUG_RETURN(ER_SPIDER_NOSQL_WRAPPER_IS_INVALID_NUM);
+    }
+#endif
+  }
+
+  if ((error_num = conn->db_conn->connect(
+    share->tgt_hosts[link_idx],
+    share->tgt_usernames[link_idx],
+    share->tgt_passwords[link_idx],
+    share->tgt_ports[link_idx],
+    share->tgt_sockets[link_idx],
+    share->server_names[link_idx],
+    connect_retry_count, connect_retry_interval)))
+  {
+    if (conn->thd)
+    {
+      conn->connect_error_thd = conn->thd;
+      conn->connect_error_query_id = conn->thd->query_id;
+      conn->connect_error_time = (time_t) time((time_t*) 0);
+      conn->connect_error = error_num;
+      if ((conn->connect_error_with_message = thd->is_error()))
+        strmov(conn->connect_error_msg, spider_stmt_da_message(thd));
+    }
+    DBUG_RETURN(error_num);
+  }
+
+  conn->connect_error = 0;
+  conn->opened_handlers = 0;
+  conn->db_conn->reset_opened_handler();
+  ++conn->connection_id;
+
+  /* Set the connection's time zone to UTC */
+  spider_conn_queue_UTC_time_zone(conn);
+  DBUG_RETURN(0);
+}
+
+int spider_db_ping_internal(
+  SPIDER_SHARE *share,
+  SPIDER_CONN *conn,
+  int all_link_idx,
+  int *need_mon
+) {
+  int error_num;
+  DBUG_ENTER("spider_db_ping_internal");
+  pthread_mutex_assert_owner(&conn->mta_conn_mutex);
+  DBUG_ASSERT(conn->mta_conn_mutex_file_pos.file_name);
+  if (conn->server_lost || conn->queued_connect)
+  {
+    if ((error_num = spider_db_connect(share, conn, all_link_idx)))
+    {
+      pthread_mutex_assert_owner(&conn->mta_conn_mutex);
+      DBUG_RETURN(error_num);
+    }
+    conn->server_lost = FALSE;
+    conn->queued_connect = FALSE;
+  }
+  if ((error_num = conn->db_conn->ping()))
+  {
+    spider_db_disconnect(conn);
+    if ((error_num = spider_db_connect(share, conn, all_link_idx)))
+    {
+      DBUG_PRINT("info", ("spider conn=%p SERVER_LOST", conn));
+      conn->server_lost = TRUE;
+      pthread_mutex_assert_owner(&conn->mta_conn_mutex);
+      DBUG_RETURN(error_num);
+    }
+    if((error_num = conn->db_conn->ping()))
+    {
+      spider_db_disconnect(conn);
+      DBUG_PRINT("info", ("spider conn=%p SERVER_LOST", conn));
+      conn->server_lost = TRUE;
+      pthread_mutex_assert_owner(&conn->mta_conn_mutex);
+      DBUG_RETURN(error_num);
+    }
+  }
+  conn->ping_time = (time_t) time((time_t*) 0);
+  pthread_mutex_assert_owner(&conn->mta_conn_mutex);
+  DBUG_RETURN(0);
+}
+
+int spider_db_ping(
+  ha_spider *spider,
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  DBUG_ENTER("spider_db_ping");
+#ifndef DBUG_OFF
+  if (spider->wide_handler->trx->thd)
+    DBUG_PRINT("info", ("spider thd->query_id is %lld",
+      spider->wide_handler->trx->thd->query_id));
+#endif
+  DBUG_RETURN(spider_db_ping_internal(spider->share, conn,
+    spider->conn_link_idx[link_idx], &spider->need_mons[link_idx]));
+}
+
+void spider_db_disconnect(
+  SPIDER_CONN *conn
+) {
+  DBUG_ENTER("spider_db_disconnect");
+  DBUG_PRINT("info",("spider conn=%p", conn));
+  DBUG_PRINT("info",("spider conn->conn_kind=%u", conn->conn_kind));
+  if (conn->db_conn->is_connected())
+  {
+    conn->db_conn->disconnect();
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_db_conn_queue_action(
+  SPIDER_CONN *conn
+) {
+  int error_num;
+  char sql_buf[MAX_FIELD_WIDTH * 2];
+  spider_string sql_str(sql_buf, sizeof(sql_buf), system_charset_info);
+  DBUG_ENTER("spider_db_conn_queue_action");
+  DBUG_PRINT("info", ("spider conn=%p", conn));
+  sql_str.init_calc_mem(106);
+  sql_str.length(0);
+  if (conn->queued_connect)
+  {
+    if ((error_num = spider_db_connect(conn->queued_connect_share, conn,
+      conn->queued_connect_link_idx)))
+    {
+      DBUG_PRINT("info", ("spider conn=%p SERVER_LOST", conn));
+      conn->server_lost = TRUE;
+      DBUG_RETURN(error_num);
+    }
+    conn->server_lost = FALSE;
+    conn->queued_connect = FALSE;
+  }
+
+  pthread_mutex_assert_owner(&conn->mta_conn_mutex);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (conn->conn_kind == SPIDER_CONN_KIND_MYSQL)
+  {
+#endif
+    if (conn->queued_ping)
+    {
+      if ((error_num = spider_db_ping(conn->queued_ping_spider, conn,
+        conn->queued_ping_link_idx)))
+        DBUG_RETURN(error_num);
+      conn->queued_ping = FALSE;
+    }
+
+    if (conn->server_lost)
+    {
+      DBUG_PRINT("info", ("spider no reconnect queue"));
+      DBUG_RETURN(CR_SERVER_GONE_ERROR);
+    }
+
+    if (conn->queued_net_timeout)
+    {
+      conn->db_conn->set_net_timeout();
+      conn->queued_net_timeout = FALSE;
+    }
+    if (
+      (
+        conn->queued_trx_isolation &&
+        !conn->queued_semi_trx_isolation &&
+        conn->queued_trx_isolation_val != conn->trx_isolation &&
+        conn->db_conn->set_trx_isolation_in_bulk_sql() &&
+        (error_num = spider_dbton[conn->dbton_id].db_util->
+          append_trx_isolation(&sql_str, conn->queued_trx_isolation_val))
+      ) ||
+      (
+        conn->queued_semi_trx_isolation &&
+        conn->queued_semi_trx_isolation_val != conn->trx_isolation &&
+        conn->db_conn->set_trx_isolation_in_bulk_sql() &&
+        (error_num = spider_dbton[conn->dbton_id].db_util->
+          append_trx_isolation(&sql_str, conn->queued_semi_trx_isolation_val))
+      ) ||
+      (
+        conn->queued_autocommit &&
+        (
+          (conn->queued_autocommit_val && conn->autocommit != 1) ||
+          (!conn->queued_autocommit_val && conn->autocommit != 0)
+        ) &&
+        conn->db_conn->set_autocommit_in_bulk_sql() &&
+        (error_num = spider_dbton[conn->dbton_id].db_util->
+          append_autocommit(&sql_str, conn->queued_autocommit_val))
+      ) ||
+      (
+        conn->queued_sql_log_off &&
+        (
+          (conn->queued_sql_log_off_val && conn->sql_log_off != 1) ||
+          (!conn->queued_sql_log_off_val && conn->sql_log_off != 0)
+        ) &&
+        conn->db_conn->set_sql_log_off_in_bulk_sql() &&
+        (error_num = spider_dbton[conn->dbton_id].db_util->
+          append_sql_log_off(&sql_str, conn->queued_sql_log_off_val))
+      ) ||
+      (
+        conn->queued_wait_timeout &&
+        conn->queued_wait_timeout_val != conn->wait_timeout &&
+        conn->db_conn->set_wait_timeout_in_bulk_sql() &&
+        (error_num = spider_dbton[conn->dbton_id].db_util->
+          append_wait_timeout(&sql_str, conn->queued_wait_timeout_val))
+      ) ||
+      (
+        conn->queued_sql_mode &&
+        conn->queued_sql_mode_val != conn->sql_mode &&
+        conn->db_conn->set_sql_mode_in_bulk_sql() &&
+        (error_num = spider_dbton[conn->dbton_id].db_util->
+          append_sql_mode(&sql_str, conn->queued_sql_mode_val))
+      ) ||
+      (
+        conn->queued_time_zone &&
+        conn->queued_time_zone_val != conn->time_zone &&
+        conn->db_conn->set_time_zone_in_bulk_sql() &&
+        (error_num = spider_dbton[conn->dbton_id].db_util->
+          append_time_zone(&sql_str, conn->queued_time_zone_val))
+      ) ||
+      (
+        conn->loop_check_queue.records &&
+        conn->db_conn->set_loop_check_in_bulk_sql() &&
+        (error_num = spider_dbton[conn->dbton_id].db_util->
+          append_loop_check(&sql_str, conn))
+      ) ||
+      (
+        conn->queued_trx_start &&
+        conn->db_conn->trx_start_in_bulk_sql() &&
+        (error_num = spider_dbton[conn->dbton_id].db_util->
+          append_start_transaction(&sql_str))
+      ) ||
+      (
+        conn->queued_xa_start &&
+        conn->db_conn->xa_start_in_bulk_sql() &&
+        (error_num = spider_dbton[conn->dbton_id].db_util->
+          append_xa_start(&sql_str, conn->queued_xa_start_xid))
+      )
+    )
+      DBUG_RETURN(error_num);
+    if (sql_str.length())
+    {
+      if ((error_num = conn->db_conn->exec_query(sql_str.ptr(),
+        sql_str.length(), -1)))
+        DBUG_RETURN(error_num);
+      spider_db_result *result;
+      do {
+        st_spider_db_request_key request_key;
+        request_key.spider_thread_id = 1;
+        request_key.query_id = 1;
+        request_key.handler = NULL;
+        request_key.request_id = 1;
+        request_key.next = NULL;
+        if ((result = conn->db_conn->store_result(NULL, &request_key,
+          &error_num)))
+        {
+          result->free_result();
+          delete result;
+        } else if ((error_num = conn->db_conn->get_errno()))
+        {
+          break;
+        }
+      } while (!(error_num = conn->db_conn->next_result()));
+      if (error_num > 0)
+        DBUG_RETURN(error_num);
+    }
+
+    if (
+      conn->queued_autocommit &&
+      (
+        (conn->queued_autocommit_val && conn->autocommit != 1) ||
+        (!conn->queued_autocommit_val && conn->autocommit != 0)
+      ) &&
+      !conn->db_conn->set_autocommit_in_bulk_sql() &&
+      (error_num = conn->db_conn->
+        set_autocommit(conn->queued_autocommit_val, (int *) conn->need_mon))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+    if (
+      conn->queued_sql_log_off &&
+      (
+        (conn->queued_sql_log_off_val && conn->sql_log_off != 1) ||
+        (!conn->queued_sql_log_off_val && conn->sql_log_off != 0)
+      ) &&
+      !conn->db_conn->set_sql_log_off_in_bulk_sql() &&
+      (error_num = conn->db_conn->
+        set_sql_log_off(conn->queued_sql_log_off_val, (int *) conn->need_mon))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+    if (
+      conn->queued_wait_timeout &&
+      conn->queued_wait_timeout_val != conn->wait_timeout &&
+      !conn->db_conn->set_wait_timeout_in_bulk_sql() &&
+      (error_num = conn->db_conn->
+        set_wait_timeout(conn->queued_wait_timeout_val,
+        (int *) conn->need_mon))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+    if (
+      conn->queued_sql_mode &&
+      conn->queued_sql_mode_val != conn->sql_mode &&
+      !conn->db_conn->set_sql_mode_in_bulk_sql() &&
+      (error_num = conn->db_conn->
+        set_sql_mode(conn->queued_sql_mode_val,
+        (int *) conn->need_mon))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+    if (
+      conn->queued_time_zone &&
+      conn->queued_time_zone_val != conn->time_zone &&
+      !conn->db_conn->set_time_zone_in_bulk_sql() &&
+      (error_num = conn->db_conn->
+        set_time_zone(conn->queued_time_zone_val,
+        (int *) conn->need_mon))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+    if (
+      conn->loop_check_queue.records &&
+      !conn->db_conn->set_loop_check_in_bulk_sql() &&
+      (error_num = conn->db_conn->set_loop_check((int *) conn->need_mon))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+    if (
+      conn->queued_trx_isolation &&
+      !conn->queued_semi_trx_isolation &&
+      conn->queued_trx_isolation_val != conn->trx_isolation &&
+      !conn->db_conn->set_trx_isolation_in_bulk_sql() &&
+      (error_num = conn->db_conn->set_trx_isolation(
+        conn->queued_trx_isolation_val, (int *) conn->need_mon))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+    if (
+      conn->queued_semi_trx_isolation &&
+      conn->queued_semi_trx_isolation_val != conn->trx_isolation &&
+      !conn->db_conn->set_trx_isolation_in_bulk_sql() &&
+      (error_num = conn->db_conn->set_trx_isolation(
+        conn->queued_semi_trx_isolation_val, (int *) conn->need_mon))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+    if (
+      conn->queued_trx_start &&
+      !conn->db_conn->trx_start_in_bulk_sql() &&
+      (error_num = conn->db_conn->
+        start_transaction((int *) conn->need_mon))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+    if (
+      conn->queued_xa_start &&
+      !conn->db_conn->xa_start_in_bulk_sql() &&
+      (error_num = conn->db_conn->
+        xa_start(conn->queued_xa_start_xid, (int *) conn->need_mon))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+
+    if (
+      conn->queued_trx_isolation &&
+      !conn->queued_semi_trx_isolation &&
+      conn->queued_trx_isolation_val != conn->trx_isolation
+    ) {
+      conn->trx_isolation = conn->queued_trx_isolation_val;
+      DBUG_PRINT("info", ("spider conn->trx_isolation=%d",
+        conn->trx_isolation));
+    }
+
+    if (
+      conn->queued_semi_trx_isolation &&
+      conn->queued_semi_trx_isolation_val != conn->trx_isolation
+    ) {
+      conn->semi_trx_isolation = conn->queued_semi_trx_isolation_val;
+      DBUG_PRINT("info", ("spider conn->semi_trx_isolation=%d",
+        conn->semi_trx_isolation));
+      conn->trx_isolation = thd_tx_isolation(conn->thd);
+      DBUG_PRINT("info", ("spider conn->trx_isolation=%d",
+        conn->trx_isolation));
+    }
+
+    if (
+      conn->queued_wait_timeout &&
+      conn->queued_wait_timeout_val != conn->wait_timeout
+    ) {
+      conn->wait_timeout = conn->queued_wait_timeout_val;
+    }
+
+    if (
+      conn->queued_sql_mode &&
+      conn->queued_sql_mode_val != conn->sql_mode
+    ) {
+      conn->sql_mode = conn->queued_sql_mode_val;
+    }
+
+    if (conn->queued_autocommit)
+    {
+      if (conn->queued_autocommit_val && conn->autocommit != 1)
+      {
+        conn->autocommit = 1;
+      } else if (!conn->queued_autocommit_val && conn->autocommit != 0)
+      {
+        conn->autocommit = 0;
+      }
+      DBUG_PRINT("info", ("spider conn->autocommit=%d",
+        conn->autocommit));
+    }
+
+    if (conn->queued_sql_log_off)
+    {
+      if (conn->queued_sql_log_off_val && conn->sql_log_off != 1)
+      {
+        conn->sql_log_off = 1;
+      } else if (!conn->queued_sql_log_off_val && conn->sql_log_off != 0)
+      {
+        conn->sql_log_off = 0;
+      }
+      DBUG_PRINT("info", ("spider conn->sql_log_off=%d",
+        conn->sql_log_off));
+    }
+
+    if (
+      conn->queued_time_zone &&
+      conn->queued_time_zone_val != conn->time_zone
+    ) {
+      conn->time_zone = conn->queued_time_zone_val;
+      DBUG_PRINT("info", ("spider conn->time_zone=%p",
+        conn->time_zone));
+    }
+
+    if (conn->loop_check_queue.records)
+    {
+      conn->db_conn->fin_loop_check();
+    }
+    spider_conn_clear_queue(conn);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  } else if (conn->server_lost)
+  {
+    DBUG_PRINT("info", ("spider no connect queue"));
+    DBUG_RETURN(CR_SERVER_GONE_ERROR);
+  }
+#endif
+  DBUG_RETURN(0);
+}
+
+int spider_db_before_query(
+  SPIDER_CONN *conn,
+  int *need_mon
+) {
+  int error_num;
+  DBUG_ENTER("spider_db_before_query");
+  DBUG_ASSERT(need_mon);
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  if (conn->bg_search)
+    spider_bg_conn_break(conn, NULL);
+#endif
+  conn->in_before_query = TRUE;
+  pthread_mutex_assert_owner(&conn->mta_conn_mutex);
+  DBUG_ASSERT(conn->mta_conn_mutex_file_pos.file_name);
+  if ((error_num = spider_db_conn_queue_action(conn)))
+  {
+    conn->in_before_query = FALSE;
+    pthread_mutex_assert_owner(&conn->mta_conn_mutex);
+    DBUG_RETURN(error_num);
+  }
+  if (conn->server_lost)
+  {
+    conn->in_before_query = FALSE;
+    pthread_mutex_assert_owner(&conn->mta_conn_mutex);
+    DBUG_RETURN(CR_SERVER_GONE_ERROR);
+  }
+  DBUG_PRINT("info", ("spider conn[%p]->quick_target=%p",
+    conn, conn->quick_target));
+  if (conn->quick_target)
+  {
+    bool tmp_mta_conn_mutex_unlock_later;
+    ha_spider *spider = (ha_spider*) conn->quick_target;
+    SPIDER_RESULT_LIST *result_list = &spider->result_list;
+    DBUG_PRINT("info", ("spider result_list->quick_mode=%d",
+      result_list->quick_mode));
+    if (result_list->quick_mode == 2)
+    {
+      result_list->quick_phase = 1;
+      spider->connection_ids[conn->link_idx] = conn->connection_id;
+      tmp_mta_conn_mutex_unlock_later = conn->mta_conn_mutex_unlock_later;
+      conn->mta_conn_mutex_unlock_later = TRUE;
+      while (conn->quick_target)
+      {
+        if (
+          (error_num = spider_db_store_result(spider, conn->link_idx,
+            result_list->table)) &&
+          error_num != HA_ERR_END_OF_FILE
+        ) {
+          conn->mta_conn_mutex_unlock_later = tmp_mta_conn_mutex_unlock_later;
+          conn->in_before_query = FALSE;
+          pthread_mutex_assert_owner(&conn->mta_conn_mutex);
+          DBUG_RETURN(error_num);
+        }
+      }
+      conn->mta_conn_mutex_unlock_later = tmp_mta_conn_mutex_unlock_later;
+      result_list->quick_phase = 2;
+    } else {
+      result_list->bgs_current->result->free_result();
+      delete result_list->bgs_current->result;
+      result_list->bgs_current->result = NULL;
+      DBUG_PRINT("info", ("spider conn[%p]->quick_target=NULL", conn));
+      conn->quick_target = NULL;
+      spider->quick_targets[conn->link_idx] = NULL;
+    }
+  }
+  conn->in_before_query = FALSE;
+  pthread_mutex_assert_owner(&conn->mta_conn_mutex);
+  DBUG_RETURN(0);
+}
+
+int spider_db_query(
+  SPIDER_CONN *conn,
+  const char *query,
+  uint length,
+  int quick_mode,
+  int *need_mon
+) {
+  int error_num;
+  DBUG_ENTER("spider_db_query");
+  pthread_mutex_assert_owner(&conn->mta_conn_mutex);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (conn->conn_kind == SPIDER_CONN_KIND_MYSQL)
+  {
+#endif
+    DBUG_PRINT("info", ("spider conn->db_conn %p", conn->db_conn));
+    if (
+      !conn->in_before_query &&
+      (error_num = spider_db_before_query(conn, need_mon))
+    )
+      DBUG_RETURN(error_num);
+#ifndef DBUG_OFF
+    spider_string tmp_query_str(sizeof(char) * (length + 1));
+    tmp_query_str.init_calc_mem(107);
+    char *tmp_query = (char *) tmp_query_str.c_ptr_safe();
+    memcpy(tmp_query, query, length);
+    tmp_query[length] = '\0';
+    query = (const char *) tmp_query;
+    DBUG_PRINT("info", ("spider query=%s", query));
+    DBUG_PRINT("info", ("spider length=%u", length));
+#endif
+    if ((error_num = conn->db_conn->exec_query(query, length, quick_mode)))
+      DBUG_RETURN(error_num);
+    DBUG_RETURN(0);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  } else {
+    if (conn->queued_net_timeout)
+    {
+      if (conn->db_conn->set_net_timeout())
+        DBUG_RETURN(ER_SPIDER_HS_NUM);
+      conn->queued_net_timeout = FALSE;
+    }
+    DBUG_RETURN(conn->db_conn->exec_query(NULL, 0, quick_mode));
+  }
+#endif
+}
+
+int spider_db_errorno(
+  SPIDER_CONN *conn
+) {
+  int error_num;
+  DBUG_ENTER("spider_db_errorno");
+  DBUG_ASSERT(conn->need_mon);
+  pthread_mutex_assert_owner(&conn->mta_conn_mutex);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (conn->conn_kind == SPIDER_CONN_KIND_MYSQL)
+  {
+#endif
+    if (conn->server_lost)
+    {
+      *conn->need_mon = ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM;
+      if (!current_thd->is_error())
+      {
+        my_message(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM,
+          ER_SPIDER_REMOTE_SERVER_GONE_AWAY_STR, MYF(0));
+      }
+      if (!conn->mta_conn_mutex_unlock_later)
+      {
+        DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+      }
+      DBUG_RETURN(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM);
+    }
+    if ((error_num = conn->db_conn->get_errno()))
+    {
+      DBUG_PRINT("info",("spider error_num = %d", error_num));
+      if (conn->db_conn->is_server_gone_error(error_num))
+      {
+        spider_db_disconnect(conn);
+        DBUG_PRINT("info", ("spider conn=%p SERVER_LOST", conn));
+        conn->server_lost = TRUE;
+        if (conn->disable_reconnect)
+        {
+          *conn->need_mon = ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM;
+          my_message(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM,
+            ER_SPIDER_REMOTE_SERVER_GONE_AWAY_STR, MYF(0));
+        }
+        if (!conn->mta_conn_mutex_unlock_later)
+        {
+          DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+        }
+        DBUG_RETURN(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM);
+      } else if (
+        conn->ignore_dup_key &&
+        conn->db_conn->is_dup_entry_error(error_num)
+      ) {
+        conn->error_str = (char*) conn->db_conn->get_error();
+        conn->error_length = strlen(conn->error_str);
+        if (!conn->mta_conn_mutex_unlock_later)
+        {
+          DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+        }
+        DBUG_RETURN(HA_ERR_FOUND_DUPP_KEY);
+      } else if (
+        conn->db_conn->is_xa_nota_error(error_num) &&
+        current_thd &&
+        spider_param_force_commit(current_thd) == 1
+      ) {
+        push_warning(current_thd, SPIDER_WARN_LEVEL_WARN,
+          error_num, conn->db_conn->get_error());
+        if (spider_param_log_result_errors() >= 3)
+        {
+          time_t cur_time = (time_t) time((time_t*) 0);
+          struct tm lt;
+          struct tm *l_time = localtime_r(&cur_time, &lt);
+          fprintf(stderr, "%04d%02d%02d %02d:%02d:%02d [WARN SPIDER RESULT] "
+            "to %lld: %d %s\n",
+            l_time->tm_year + 1900, l_time->tm_mon + 1, l_time->tm_mday,
+            l_time->tm_hour, l_time->tm_min, l_time->tm_sec,
+            (long long int) current_thd->thread_id, error_num,
+            conn->db_conn->get_error());
+        }
+        if (!conn->mta_conn_mutex_unlock_later)
+        {
+          DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+        }
+        DBUG_RETURN(error_num);
+      }
+      *conn->need_mon = error_num;
+      my_message(error_num, conn->db_conn->get_error(), MYF(0));
+      if (spider_param_log_result_errors() >= 1)
+      {
+        time_t cur_time = (time_t) time((time_t*) 0);
+        struct tm lt;
+        struct tm *l_time = localtime_r(&cur_time, &lt);
+        fprintf(stderr, "%04d%02d%02d %02d:%02d:%02d [ERROR SPIDER RESULT] "
+          "to %lld: %d %s\n",
+          l_time->tm_year + 1900, l_time->tm_mon + 1, l_time->tm_mday,
+          l_time->tm_hour, l_time->tm_min, l_time->tm_sec,
+          (long long int) current_thd->thread_id, error_num,
+          conn->db_conn->get_error());
+      }
+      if (!conn->mta_conn_mutex_unlock_later)
+      {
+        DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+      }
+      DBUG_RETURN(error_num);
+    }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  } else {
+    if (conn->db_conn->is_server_gone_error(0))
+    {
+      my_printf_error(ER_SPIDER_HS_NUM, ER_SPIDER_HS_STR, MYF(0),
+        conn->db_conn->get_errno(), conn->db_conn->get_error());
+      *conn->need_mon = ER_SPIDER_HS_NUM;
+      DBUG_PRINT("info", ("spider conn=%p SERVER_LOST", conn));
+      conn->server_lost = TRUE;
+      if (!conn->mta_conn_mutex_unlock_later)
+      {
+        DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+      }
+      DBUG_RETURN(ER_SPIDER_HS_NUM);
+    } else if (conn->db_conn->is_dup_entry_error(0))
+    {
+      *conn->need_mon = 0;
+      if (!conn->mta_conn_mutex_unlock_later)
+      {
+        DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+      }
+      DBUG_RETURN(HA_ERR_FOUND_DUPP_KEY);
+    }
+    my_printf_error(ER_SPIDER_HS_NUM, ER_SPIDER_HS_STR, MYF(0),
+      conn->db_conn->get_errno(), conn->db_conn->get_error());
+    if (spider_param_log_result_errors() >= 1)
+    {
+      time_t cur_time = (time_t) time((time_t*) 0);
+      struct tm lt;
+      struct tm *l_time = localtime_r(&cur_time, &lt);
+      fprintf(stderr, "%04d%02d%02d %02d:%02d:%02d [ERROR SPIDER RESULT] "
+        "to %ld: %d %s\n",
+        l_time->tm_year + 1900, l_time->tm_mon + 1, l_time->tm_mday,
+        l_time->tm_hour, l_time->tm_min, l_time->tm_sec,
+        (ulong) current_thd->thread_id, conn->db_conn->get_errno(),
+        conn->db_conn->get_error());
+    }
+    *conn->need_mon = ER_SPIDER_HS_NUM;
+    if (!conn->mta_conn_mutex_unlock_later)
+    {
+      DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+    }
+    DBUG_RETURN(ER_SPIDER_HS_NUM);
+  }
+#endif
+  if (!conn->mta_conn_mutex_unlock_later)
+  {
+    DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_set_trx_isolation(
+  SPIDER_CONN *conn,
+  int trx_isolation,
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_set_trx_isolation");
+  DBUG_RETURN(conn->db_conn->set_trx_isolation(trx_isolation, need_mon));
+}
+
+int spider_db_set_names_internal(
+  SPIDER_TRX *trx,
+  SPIDER_SHARE *share,
+  SPIDER_CONN *conn,
+  int all_link_idx,
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_set_names_internal");
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (conn->conn_kind == SPIDER_CONN_KIND_MYSQL)
+  {
+#endif
+    pthread_mutex_assert_owner(&conn->mta_conn_mutex);
+    DBUG_ASSERT(conn->mta_conn_mutex_file_pos.file_name);
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    if (
+      !conn->access_charset ||
+      share->access_charset->cset != conn->access_charset->cset
+    ) {
+      if (
+        spider_db_before_query(conn, need_mon) ||
+        conn->db_conn->set_character_set(share->access_charset->csname)
+      ) {
+        DBUG_RETURN(spider_db_errorno(conn));
+      }
+      conn->access_charset = share->access_charset;
+    }
+    if (
+      spider_param_use_default_database(trx->thd) &&
+      share->tgt_dbs[all_link_idx] &&
+      (
+        !conn->default_database.length() ||
+        conn->default_database.length() !=
+          share->tgt_dbs_lengths[all_link_idx] ||
+        memcmp(share->tgt_dbs[all_link_idx], conn->default_database.ptr(),
+          share->tgt_dbs_lengths[all_link_idx])
+      )
+    ) {
+      DBUG_PRINT("info",("spider all_link_idx=%d db=%s", all_link_idx,
+        share->tgt_dbs[all_link_idx]));
+      if (
+        spider_db_before_query(conn, need_mon) ||
+        conn->db_conn->select_db(share->tgt_dbs[all_link_idx])
+      ) {
+        DBUG_RETURN(spider_db_errorno(conn));
+      }
+      conn->default_database.length(0);
+      if (conn->default_database.reserve(
+        share->tgt_dbs_lengths[all_link_idx] + 1))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      conn->default_database.q_append(share->tgt_dbs[all_link_idx],
+        share->tgt_dbs_lengths[all_link_idx] + 1);
+      conn->default_database.length(share->tgt_dbs_lengths[all_link_idx]);
+    }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  }
+#endif
+  DBUG_RETURN(0);
+}
+
+int spider_db_set_names(
+  ha_spider *spider,
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  DBUG_ENTER("spider_db_set_names");
+  DBUG_RETURN(spider_db_set_names_internal(spider->wide_handler->trx,
+    spider->share, conn,
+    spider->conn_link_idx[link_idx], &spider->need_mons[link_idx]));
+}
+
+int spider_db_query_with_set_names(
+  ulong sql_type,
+  ha_spider *spider,
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  int error_num;
+  SPIDER_SHARE *share = spider->share;
+  spider_db_handler *dbton_hdl = spider->dbton_handler[conn->dbton_id];
+  DBUG_ENTER("spider_db_query_with_set_names");
+
+  pthread_mutex_assert_owner(&conn->mta_conn_mutex);
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  if ((error_num = spider_db_set_names(spider, conn, link_idx)))
+  {
+    if (
+      share->monitoring_kind[link_idx] &&
+      spider->need_mons[link_idx]
+    ) {
+      error_num = spider_ping_table_mon_from_table(
+          spider->wide_handler->trx,
+          spider->wide_handler->trx->thd,
+          share,
+          link_idx,
+          (uint32) share->monitoring_sid[link_idx],
+          share->table_name,
+          share->table_name_length,
+          spider->conn_link_idx[link_idx],
+          NULL,
+          0,
+          share->monitoring_kind[link_idx],
+          share->monitoring_limit[link_idx],
+          share->monitoring_flag[link_idx],
+          TRUE
+        );
+    }
+    DBUG_RETURN(error_num);
+  }
+  spider_conn_set_timeout_from_share(conn, link_idx,
+    spider->wide_handler->trx->thd,
+    share);
+  if (dbton_hdl->execute_sql(
+    sql_type,
+    conn,
+    -1,
+    &spider->need_mons[link_idx])
+  ) {
+    error_num = spider_db_errorno(conn);
+    if (
+      share->monitoring_kind[link_idx] &&
+      spider->need_mons[link_idx]
+    ) {
+      error_num = spider_ping_table_mon_from_table(
+          spider->wide_handler->trx,
+          spider->wide_handler->trx->thd,
+          share,
+          link_idx,
+          (uint32) share->monitoring_sid[link_idx],
+          share->table_name,
+          share->table_name_length,
+          spider->conn_link_idx[link_idx],
+          NULL,
+          0,
+          share->monitoring_kind[link_idx],
+          share->monitoring_limit[link_idx],
+          share->monitoring_flag[link_idx],
+          TRUE
+        );
+    }
+    DBUG_RETURN(error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_query_for_bulk_update(
+  ha_spider *spider,
+  SPIDER_CONN *conn,
+  int link_idx,
+  ha_rows *dup_key_found
+) {
+  int error_num;
+  SPIDER_SHARE *share = spider->share;
+  DBUG_ENTER("spider_db_query_for_bulk_update");
+
+  pthread_mutex_assert_owner(&conn->mta_conn_mutex);
+  conn->need_mon = &spider->need_mons[link_idx];
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  if ((error_num = spider_db_set_names(spider, conn, link_idx)))
+  {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+    if (
+      share->monitoring_kind[link_idx] &&
+      spider->need_mons[link_idx]
+    ) {
+      error_num = spider_ping_table_mon_from_table(
+          spider->wide_handler->trx,
+          spider->wide_handler->trx->thd,
+          share,
+          link_idx,
+          (uint32) share->monitoring_sid[link_idx],
+          share->table_name,
+          share->table_name_length,
+          spider->conn_link_idx[link_idx],
+          NULL,
+          0,
+          share->monitoring_kind[link_idx],
+          share->monitoring_limit[link_idx],
+          share->monitoring_flag[link_idx],
+          TRUE
+        );
+    }
+    DBUG_RETURN(error_num);
+  }
+  spider_conn_set_timeout_from_share(conn, link_idx,
+    spider->wide_handler->trx->thd,
+    share);
+  spider_db_handler *dbton_hdl = spider->dbton_handler[conn->dbton_id];
+  if (dbton_hdl->execute_sql(
+    SPIDER_SQL_TYPE_BULK_UPDATE_SQL,
+    conn,
+    -1,
+    &spider->need_mons[link_idx])
+  ) {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    error_num = spider_db_errorno(conn);
+    if (
+      error_num != ER_DUP_ENTRY &&
+      error_num != ER_DUP_KEY &&
+      error_num != HA_ERR_FOUND_DUPP_KEY &&
+      share->monitoring_kind[link_idx] &&
+      spider->need_mons[link_idx]
+    ) {
+      error_num = spider_ping_table_mon_from_table(
+          spider->wide_handler->trx,
+          spider->wide_handler->trx->thd,
+          share,
+          link_idx,
+          (uint32) share->monitoring_sid[link_idx],
+          share->table_name,
+          share->table_name_length,
+          spider->conn_link_idx[link_idx],
+          NULL,
+          0,
+          share->monitoring_kind[link_idx],
+          share->monitoring_limit[link_idx],
+          share->monitoring_flag[link_idx],
+          TRUE
+        );
+    }
+    if (
+      spider->wide_handler->ignore_dup_key &&
+      (
+        error_num == ER_DUP_ENTRY ||
+        error_num == ER_DUP_KEY ||
+        error_num == HA_ERR_FOUND_DUPP_KEY
+      )
+    ) {
+      ++(*dup_key_found);
+      spider->wide_handler->trx->thd->clear_error();
+      DBUG_RETURN(0);
+    }
+    DBUG_RETURN(error_num);
+  }
+  while (!(error_num = conn->db_conn->next_result()))
+  {
+    ;
+  }
+  if (error_num > 0 && !conn->db_conn->is_dup_entry_error(error_num))
+  {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+    if (
+      share->monitoring_kind[link_idx] &&
+      spider->need_mons[link_idx]
+    ) {
+      error_num = spider_ping_table_mon_from_table(
+          spider->wide_handler->trx,
+          spider->wide_handler->trx->thd,
+          share,
+          link_idx,
+          (uint32) share->monitoring_sid[link_idx],
+          share->table_name,
+          share->table_name_length,
+          spider->conn_link_idx[link_idx],
+          NULL,
+          0,
+          share->monitoring_kind[link_idx],
+          share->monitoring_limit[link_idx],
+          share->monitoring_flag[link_idx],
+          TRUE
+        );
+    }
+    DBUG_RETURN(error_num);
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  DBUG_RETURN(0);
+}
+
+size_t spider_db_real_escape_string(
+  SPIDER_CONN *conn,
+  char *to,
+  const char *from,
+  size_t from_length
+) {
+  DBUG_ENTER("spider_db_real_escape_string");
+  DBUG_RETURN(conn->db_conn->escape_string(to, from, from_length));
+}
+
+int spider_db_consistent_snapshot(
+  SPIDER_CONN *conn,
+  int *need_mon
+) {
+  int error_num;
+  DBUG_ENTER("spider_db_consistent_snapshot");
+  if ((error_num = conn->db_conn->consistent_snapshot(need_mon)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  conn->trx_start = TRUE;
+  DBUG_RETURN(0);
+}
+
+int spider_db_start_transaction(
+  SPIDER_CONN *conn,
+  int *need_mon
+) {
+  int error_num;
+  DBUG_ENTER("spider_db_start_transaction");
+  if ((error_num = conn->db_conn->start_transaction(need_mon)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  conn->trx_start = TRUE;
+  DBUG_RETURN(0);
+}
+
+int spider_db_commit(
+  SPIDER_CONN *conn
+) {
+  int need_mon = 0, error_num;
+  DBUG_ENTER("spider_db_commit");
+  if (!conn->queued_connect && !conn->queued_trx_start)
+  {
+    if (conn->use_for_active_standby && conn->server_lost)
+    {
+      my_message(ER_SPIDER_LINK_IS_FAILOVER_NUM,
+        ER_SPIDER_LINK_IS_FAILOVER_STR, MYF(0));
+      DBUG_RETURN(ER_SPIDER_LINK_IS_FAILOVER_NUM);
+    }
+    if ((error_num = conn->db_conn->commit(&need_mon)))
+    {
+      DBUG_RETURN(error_num);
+    }
+    conn->trx_start = FALSE;
+  } else
+    conn->trx_start = FALSE;
+  DBUG_RETURN(0);
+}
+
+int spider_db_rollback(
+  SPIDER_CONN *conn
+) {
+  int error_num, need_mon = 0;
+  DBUG_ENTER("spider_db_rollback");
+  if (!conn->queued_connect && !conn->queued_trx_start)
+  {
+    if ((error_num = conn->db_conn->rollback(&need_mon)))
+    {
+      DBUG_RETURN(error_num);
+    }
+    conn->trx_start = FALSE;
+  } else
+    conn->trx_start = FALSE;
+  DBUG_RETURN(0);
+}
+
+int spider_db_append_hex_string(
+  spider_string *str,
+  uchar *hex_ptr,
+  int hex_ptr_length
+) {
+  uchar *end_ptr;
+  char *str_ptr;
+  DBUG_ENTER("spider_db_append_hex_string");
+  if (hex_ptr_length)
+  {
+    if (str->reserve(SPIDER_SQL_HEX_LEN + hex_ptr_length * 2))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_HEX_STR, SPIDER_SQL_HEX_LEN);
+    str_ptr = (char *) str->ptr() + str->length();
+    for (end_ptr = hex_ptr + hex_ptr_length; hex_ptr < end_ptr; hex_ptr++)
+    {
+      *str_ptr++ = spider_dig_upper[(*hex_ptr) >> 4];
+      *str_ptr++ = spider_dig_upper[(*hex_ptr) & 0x0F];
+    }
+    str->length(str->length() + hex_ptr_length * 2);
+  } else {
+    if (str->reserve((SPIDER_SQL_VALUE_QUOTE_LEN) * 2))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+  }
+  DBUG_RETURN(0);
+}
+
+void spider_db_append_xid_str(
+  spider_string *tmp_str,
+  XID *xid
+) {
+  char format_id[sizeof(long) + 3];
+  uint format_id_length;
+  DBUG_ENTER("spider_db_append_xid_str");
+
+  format_id_length =
+    my_sprintf(format_id, (format_id, "%lu", xid->formatID));
+  spider_db_append_hex_string(tmp_str, (uchar *) xid->data, xid->gtrid_length);
+/*
+  tmp_str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+  tmp_str->q_append(xid->data, xid->gtrid_length);
+  tmp_str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+*/
+  tmp_str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  spider_db_append_hex_string(tmp_str,
+    (uchar *) xid->data + xid->gtrid_length, xid->bqual_length);
+/*
+  tmp_str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+  tmp_str->q_append(xid->data + xid->gtrid_length, xid->bqual_length);
+  tmp_str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+*/
+  tmp_str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  tmp_str->q_append(format_id, format_id_length);
+#ifndef DBUG_OFF
+  ((char *) tmp_str->ptr())[tmp_str->length()] = '\0';
+#endif
+
+  DBUG_VOID_RETURN;
+}
+
+int spider_db_xa_end(
+  SPIDER_CONN *conn,
+  XID *xid
+) {
+  int need_mon = 0;
+  DBUG_ENTER("spider_db_xa_end");
+  if (!conn->queued_connect && !conn->queued_xa_start)
+  {
+    DBUG_RETURN(conn->db_conn->xa_end(xid, &need_mon));
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_xa_prepare(
+  SPIDER_CONN *conn,
+  XID *xid
+) {
+  int need_mon = 0;
+  DBUG_ENTER("spider_db_xa_prepare");
+  if (!conn->queued_connect && !conn->queued_xa_start)
+  {
+    if (conn->use_for_active_standby && conn->server_lost)
+    {
+      my_message(ER_SPIDER_LINK_IS_FAILOVER_NUM,
+        ER_SPIDER_LINK_IS_FAILOVER_STR, MYF(0));
+      DBUG_RETURN(ER_SPIDER_LINK_IS_FAILOVER_NUM);
+    }
+    DBUG_RETURN(conn->db_conn->xa_prepare(xid, &need_mon));
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_xa_commit(
+  SPIDER_CONN *conn,
+  XID *xid
+) {
+  int need_mon = 0;
+  DBUG_ENTER("spider_db_xa_commit");
+  if (!conn->queued_connect && !conn->queued_xa_start)
+  {
+    DBUG_RETURN(conn->db_conn->xa_commit(xid, &need_mon));
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_xa_rollback(
+  SPIDER_CONN *conn,
+  XID *xid
+) {
+  int need_mon = 0;
+  DBUG_ENTER("spider_db_xa_rollback");
+  if (!conn->queued_connect && !conn->queued_xa_start)
+  {
+    DBUG_RETURN(conn->db_conn->xa_rollback(xid, &need_mon));
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_lock_tables(
+  ha_spider *spider,
+  int link_idx
+) {
+  int error_num;
+  SPIDER_CONN *conn = spider->conns[link_idx];
+  DBUG_ENTER("spider_db_lock_tables");
+  error_num = spider->dbton_handler[conn->dbton_id]->lock_tables(link_idx);
+  DBUG_RETURN(error_num);
+}
+
+int spider_db_unlock_tables(
+  ha_spider *spider,
+  int link_idx
+) {
+  int error_num;
+  SPIDER_CONN *conn = spider->conns[link_idx];
+  DBUG_ENTER("spider_db_unlock_tables");
+  error_num = spider->dbton_handler[conn->dbton_id]->unlock_tables(link_idx);
+  DBUG_RETURN(error_num);
+}
+
+int spider_db_append_name_with_quote_str(
+  spider_string *str,
+  const char *name,
+  uint dbton_id
+) {
+  DBUG_ENTER("spider_db_append_name_with_quote_str");
+  DBUG_RETURN(spider_db_append_name_with_quote_str_internal(
+    str, name, strlen(name), system_charset_info, dbton_id));
+}
+
+int spider_db_append_name_with_quote_str(
+  spider_string *str,
+  LEX_CSTRING &name,
+  uint dbton_id
+) {
+  DBUG_ENTER("spider_db_append_name_with_quote_str");
+  DBUG_RETURN(spider_db_append_name_with_quote_str_internal(
+    str, name.str, name.length, system_charset_info, dbton_id));
+}
+
+int spider_db_append_name_with_quote_str_internal(
+  spider_string *str,
+  const char *name,
+  int length,
+  uint dbton_id
+) {
+  DBUG_ENTER("spider_db_append_name_with_quote_str_internal");
+  DBUG_RETURN(spider_db_append_name_with_quote_str_internal(
+    str, name, length, system_charset_info, dbton_id));
+}
+
+int spider_db_append_name_with_quote_str_internal(
+  spider_string *str,
+  const char *name,
+  int length,
+  CHARSET_INFO *cs,
+  uint dbton_id
+) {
+  int error_num;
+  const char *name_end;
+  char head_code;
+  DBUG_ENTER("spider_db_append_name_with_quote_str_internal");
+  for (name_end = name + length; name < name_end; name += length)
+  {
+    head_code = *name;
+#ifdef SPIDER_HAS_MY_CHARLEN
+    if ((length = my_ci_charlen(cs, (const uchar *) name, (const uchar *) name_end)) < 1)
+#else
+    if (!(length = my_mbcharlen(cs, (uchar) head_code)))
+#endif
+    {
+      my_message(ER_SPIDER_WRONG_CHARACTER_IN_NAME_NUM,
+        ER_SPIDER_WRONG_CHARACTER_IN_NAME_STR, MYF(0));
+      DBUG_RETURN(ER_SPIDER_WRONG_CHARACTER_IN_NAME_NUM);
+    }
+    if (
+      length == 1 &&
+      spider_dbton[dbton_id].db_util->is_name_quote(head_code)
+    ) {
+      if ((error_num = spider_dbton[dbton_id].db_util->
+        append_escaped_name_quote(str)))
+      {
+        DBUG_RETURN(error_num);
+      }
+    } else {
+      if (str->append(name, length, cs))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_append_select(
+  ha_spider *spider
+) {
+  int error_num;
+  DBUG_ENTER("spider_db_append_select");
+
+  if (spider->sql_kinds & SPIDER_SQL_KIND_SQL)
+  {
+    if ((error_num = spider->append_select_sql_part(
+      SPIDER_SQL_TYPE_SELECT_SQL)))
+      DBUG_RETURN(error_num);
+  }
+  if (spider->sql_kinds & SPIDER_SQL_KIND_HANDLER)
+  {
+    if ((error_num = spider->append_select_sql_part(
+      SPIDER_SQL_TYPE_HANDLER)))
+      DBUG_RETURN(error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_append_select_columns(
+  ha_spider *spider
+) {
+  int error_num;
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  DBUG_ENTER("spider_db_append_select_columns");
+  if (spider->sql_kinds & SPIDER_SQL_KIND_SQL)
+  {
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+    if (
+      result_list->direct_aggregate &&
+      (error_num = spider->append_sum_select_sql_part(
+        SPIDER_SQL_TYPE_SELECT_SQL, NULL, 0))
+    )
+      DBUG_RETURN(error_num);
+#endif
+    if ((error_num = spider->append_match_select_sql_part(
+      SPIDER_SQL_TYPE_SELECT_SQL, NULL, 0)))
+      DBUG_RETURN(error_num);
+    if (!spider->select_column_mode)
+    {
+      if (result_list->keyread)
+      {
+        if ((error_num = spider->append_key_select_sql_part(
+          SPIDER_SQL_TYPE_SELECT_SQL, spider->active_index)))
+          DBUG_RETURN(error_num);
+      } else {
+        if ((error_num = spider->append_table_select_sql_part(
+          SPIDER_SQL_TYPE_SELECT_SQL)))
+          DBUG_RETURN(error_num);
+      }
+    } else {
+      if ((error_num = spider->append_minimum_select_sql_part(
+        SPIDER_SQL_TYPE_SELECT_SQL)))
+        DBUG_RETURN(error_num);
+    }
+  }
+  if (spider->sql_kinds & SPIDER_SQL_KIND_HANDLER)
+  {
+    if ((error_num = spider->append_from_sql_part(SPIDER_SQL_TYPE_HANDLER)))
+      DBUG_RETURN(error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_append_null_value(
+  spider_string *str,
+  KEY_PART_INFO *key_part,
+  const uchar **ptr
+) {
+  DBUG_ENTER("spider_db_append_null_value");
+  if (key_part->null_bit)
+  {
+    if (*(*ptr)++)
+    {
+      if (str->reserve(SPIDER_SQL_NULL_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_NULL_STR, SPIDER_SQL_NULL_LEN);
+      DBUG_RETURN(-1);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_append_key_columns(
+  const key_range *start_key,
+  ha_spider *spider,
+  spider_string *str
+) {
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  KEY *key_info = result_list->key_info;
+  uint key_name_length, key_count;
+  key_part_map full_key_part_map =
+    make_prev_keypart_map(spider_user_defined_key_parts(key_info));
+  key_part_map start_key_part_map;
+  char tmp_buf[MAX_FIELD_WIDTH];
+  DBUG_ENTER("spider_db_append_key_columns");
+
+  start_key_part_map = start_key->keypart_map & full_key_part_map;
+  DBUG_PRINT("info", ("spider spider_user_defined_key_parts=%u",
+    spider_user_defined_key_parts(key_info)));
+  DBUG_PRINT("info", ("spider full_key_part_map=%lu", full_key_part_map));
+  DBUG_PRINT("info", ("spider start_key_part_map=%lu", start_key_part_map));
+
+  if (!start_key_part_map)
+    DBUG_RETURN(0);
+
+  for (
+    key_count = 0;
+    start_key_part_map;
+    start_key_part_map >>= 1,
+    key_count++
+  ) {
+    key_name_length = my_sprintf(tmp_buf, (tmp_buf, "c%u", key_count));
+    if (str->reserve(key_name_length + SPIDER_SQL_COMMA_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(tmp_buf, key_name_length);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+  str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+
+  DBUG_RETURN(0);
+}
+
+int spider_db_append_key_hint(
+  spider_string *str,
+  char *hint_str
+) {
+  int hint_str_len = strlen(hint_str);
+  DBUG_ENTER("spider_db_append_key_hint");
+  if (hint_str_len >= 2 &&
+    (hint_str[0] == 'f' || hint_str[0] == 'F') && hint_str[1] == ' '
+  ) {
+    if (str->reserve(hint_str_len - 2 +
+      SPIDER_SQL_SQL_FORCE_IDX_LEN + SPIDER_SQL_CLOSE_PAREN_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    hint_str += 2;
+    str->q_append(SPIDER_SQL_SQL_FORCE_IDX_STR, SPIDER_SQL_SQL_FORCE_IDX_LEN);
+    str->q_append(hint_str, hint_str_len - 2);
+    str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+  } else if (hint_str_len >= 2 &&
+    (hint_str[0] == 'u' || hint_str[0] == 'U') && hint_str[1] == ' '
+  ) {
+    if (str->reserve(hint_str_len - 2 +
+      SPIDER_SQL_SQL_USE_IDX_LEN + SPIDER_SQL_CLOSE_PAREN_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    hint_str += 2;
+    str->q_append(SPIDER_SQL_SQL_USE_IDX_STR, SPIDER_SQL_SQL_USE_IDX_LEN);
+    str->q_append(hint_str, hint_str_len - 2);
+    str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+  } else if (hint_str_len >= 3 &&
+    (hint_str[0] == 'i' || hint_str[0] == 'I') &&
+    (hint_str[1] == 'g' || hint_str[1] == 'G') && hint_str[2] == ' '
+  ) {
+    if (str->reserve(hint_str_len - 3 +
+      SPIDER_SQL_SQL_IGNORE_IDX_LEN + SPIDER_SQL_CLOSE_PAREN_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    hint_str += 3;
+    str->q_append(
+      SPIDER_SQL_SQL_IGNORE_IDX_STR, SPIDER_SQL_SQL_IGNORE_IDX_LEN);
+    str->q_append(hint_str, hint_str_len - 3);
+    str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+  } else if (str->reserve(hint_str_len + SPIDER_SQL_SPACE_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  else
+  {
+    str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+    str->q_append(hint_str, hint_str_len);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_append_hint_after_table(
+  ha_spider *spider,
+  spider_string *str,
+  spider_string *hint
+) {
+  DBUG_ENTER("spider_db_append_hint_after_table");
+  if (spider->sql_kinds & SPIDER_SQL_KIND_SQL)
+  {
+    if (str->append(*hint))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_append_key_where_internal(
+  spider_string *str,
+  spider_string *str_part,
+  spider_string *str_part2,
+  const key_range *start_key,
+  const key_range *end_key,
+  ha_spider *spider,
+  bool set_order,
+  ulong sql_type,
+  uint dbton_id
+) {
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  SPIDER_SHARE *share = spider->share;
+#ifndef DBUG_OFF
+  TABLE *table = spider->get_table();
+#endif
+  KEY *key_info = result_list->key_info;
+  int error_num;
+  uint key_name_length;
+  key_part_map full_key_part_map;
+  key_part_map start_key_part_map;
+  key_part_map end_key_part_map;
+  key_part_map tgt_key_part_map;
+  int key_count;
+  uint length;
+  uint store_length;
+  uint current_pos = str->length();
+  const uchar *ptr, *another_ptr;
+  const key_range *use_key, *another_key;
+  KEY_PART_INFO *key_part;
+  Field *field;
+  bool use_both = TRUE, key_eq;
+  uint sql_kind;
+  spider_db_handler *dbton_hdl = spider->dbton_handler[dbton_id];
+  spider_db_share *dbton_share = share->dbton_share[dbton_id];
+  DBUG_ENTER("spider_db_append_key_where_internal");
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_HANDLER:
+      sql_kind = SPIDER_SQL_KIND_HANDLER;
+      break;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    case SPIDER_SQL_TYPE_SELECT_HS:
+    case SPIDER_SQL_TYPE_INSERT_HS:
+    case SPIDER_SQL_TYPE_UPDATE_HS:
+    case SPIDER_SQL_TYPE_DELETE_HS:
+      sql_kind = SPIDER_SQL_KIND_HS;
+      break;
+#endif
+    default:
+      sql_kind = SPIDER_SQL_KIND_SQL;
+      break;
+  }
+
+  if (key_info)
+    full_key_part_map =
+      make_prev_keypart_map(spider_user_defined_key_parts(key_info));
+  else
+    full_key_part_map = 0;
+
+  if (start_key)
+  {
+    start_key_part_map = start_key->keypart_map & full_key_part_map;
+  } else {
+    start_key_part_map = 0;
+    use_both = FALSE;
+  }
+  if (end_key) {
+    end_key_part_map = end_key->keypart_map & full_key_part_map;
+    result_list->end_key = end_key;
+  } else {
+    end_key_part_map = 0;
+    use_both = FALSE;
+  }
+  DBUG_PRINT("info", ("spider spider_user_defined_key_parts=%u", key_info ?
+    spider_user_defined_key_parts(key_info) : 0));
+  DBUG_PRINT("info", ("spider full_key_part_map=%lu", full_key_part_map));
+  DBUG_PRINT("info", ("spider start_key_part_map=%lu", start_key_part_map));
+  DBUG_PRINT("info", ("spider end_key_part_map=%lu", end_key_part_map));
+
+#ifndef DBUG_OFF
+  MY_BITMAP *tmp_map = dbug_tmp_use_all_columns(table, &table->read_set);
+#endif
+
+  if (sql_kind == SPIDER_SQL_KIND_HANDLER)
+  {
+#ifdef SPIDER_use_LEX_CSTRING_for_KEY_Field_name
+    const char *key_name = key_info->name.str;
+    key_name_length = key_info->name.length;
+#else
+    const char *key_name = key_info->name;
+    key_name_length = strlen(key_name);
+#endif
+    if (str->reserve(SPIDER_SQL_READ_LEN +
+      /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + key_name_length))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_READ_STR, SPIDER_SQL_READ_LEN);
+    if ((error_num = spider_dbton[dbton_id].db_util->
+      append_name(str, key_name, key_name_length)))
+    {
+      DBUG_RETURN(error_num);
+    }
+    dbton_hdl->set_order_pos(SPIDER_SQL_TYPE_HANDLER);
+    if (
+      (start_key_part_map || end_key_part_map) &&
+      !(use_both && (!start_key_part_map || !end_key_part_map))
+    ) {
+      if (str_part->reserve(SPIDER_SQL_OPEN_PAREN_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str_part->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+      result_list->ha_read_kind = 0;
+    } else if (!result_list->desc_flg)
+    {
+      if (str->reserve(SPIDER_SQL_FIRST_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_FIRST_STR, SPIDER_SQL_FIRST_LEN);
+      result_list->ha_read_kind = 1;
+    } else {
+      if (str->reserve(SPIDER_SQL_LAST_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_LAST_STR, SPIDER_SQL_LAST_LEN);
+      result_list->ha_read_kind = 2;
+    }
+  }
+  if (!start_key_part_map && !end_key_part_map)
+  {
+    result_list->key_order = 0;
+    goto end;
+  } else if (use_both && (!start_key_part_map || !end_key_part_map))
+  {
+    result_list->key_order = 0;
+    goto end;
+  } else if (start_key_part_map >= end_key_part_map)
+  {
+    use_key = start_key;
+    another_key = end_key;
+    tgt_key_part_map = start_key_part_map;
+  } else {
+    use_key = end_key;
+    another_key = start_key;
+    tgt_key_part_map = end_key_part_map;
+  }
+  DBUG_PRINT("info", ("spider tgt_key_part_map=%lu", tgt_key_part_map));
+  if (start_key_part_map == end_key_part_map)
+    result_list->use_both_key = TRUE;
+
+  if (sql_kind == SPIDER_SQL_KIND_SQL)
+  {
+    if (str->reserve(SPIDER_SQL_WHERE_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_WHERE_STR, SPIDER_SQL_WHERE_LEN);
+  } else if (sql_kind == SPIDER_SQL_KIND_HANDLER)
+  {
+    if (str_part2->reserve(SPIDER_SQL_WHERE_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str_part2->q_append(SPIDER_SQL_WHERE_STR, SPIDER_SQL_WHERE_LEN);
+  }
+
+  for (
+    key_part = key_info->key_part,
+    length = 0,
+    key_count = 0;
+    tgt_key_part_map;
+    length += store_length,
+    tgt_key_part_map >>= 1,
+    start_key_part_map >>= 1,
+    end_key_part_map >>= 1,
+    key_part++,
+    key_count++
+  ) {
+    DBUG_PRINT("info", ("spider tgt_key_part_map=%lu", tgt_key_part_map));
+    store_length = key_part->store_length;
+    field = key_part->field;
+    key_name_length = dbton_share->get_column_name_length(field->field_index);
+    ptr = use_key->key + length;
+    if (use_both)
+    {
+      another_ptr = another_key->key + length;
+      if (
+        start_key_part_map &&
+        end_key_part_map &&
+        !memcmp(ptr, another_ptr, store_length)
+      )
+        key_eq = TRUE;
+      else {
+        key_eq = FALSE;
+#ifndef DBUG_OFF
+        if (
+          start_key_part_map &&
+          end_key_part_map
+        )
+          DBUG_PRINT("info", ("spider memcmp=%d",
+            memcmp(ptr, another_ptr, store_length)));
+#endif
+      }
+    } else {
+      if (tgt_key_part_map > 1)
+        key_eq = TRUE;
+      else
+        key_eq = FALSE;
+    }
+    if (
+      (key_eq && use_key == start_key) ||
+      (!key_eq && start_key_part_map)
+    ) {
+      bool tgt_final = (use_key == start_key &&
+        (tgt_key_part_map == 1 || !end_key_part_map));
+      ptr = start_key->key + length;
+      if (
+        (error_num = dbton_hdl->append_is_null_part(sql_type, key_part,
+          start_key, &ptr, key_eq, tgt_final))
+      ) {
+        if (error_num > 0)
+          DBUG_RETURN(error_num);
+        if (
+          !set_order &&
+          start_key->flag != HA_READ_KEY_EXACT &&
+          sql_kind == SPIDER_SQL_KIND_SQL
+        ) {
+          result_list->key_order = key_count;
+          set_order = TRUE;
+        }
+      } else if (key_eq)
+      {
+        DBUG_PRINT("info", ("spider key_eq"));
+        if (sql_kind == SPIDER_SQL_KIND_SQL)
+        {
+          if (str->reserve(store_length + key_name_length +
+            /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+            SPIDER_SQL_EQUAL_LEN + SPIDER_SQL_AND_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          dbton_share->append_column_name(str, field->field_index);
+          str->q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+          if (spider_dbton[dbton_id].db_util->
+            append_column_value(spider, str, field, ptr,
+              share->access_charset))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        } else if (sql_kind == SPIDER_SQL_KIND_HANDLER)
+        {
+          if (str_part2->reserve(store_length + key_name_length +
+            /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+            SPIDER_SQL_EQUAL_LEN + SPIDER_SQL_AND_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          dbton_share->append_column_name(str_part2, field->field_index);
+          str_part2->q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+          if (spider_dbton[dbton_id].db_util->
+            append_column_value(spider, str_part2, field, ptr,
+              share->access_charset))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+
+          if (use_key == start_key)
+          {
+#ifdef SPIDER_HANDLER_SUPPORT_MULTIPLE_KEY_PARTS
+            if (spider_dbton[dbton_id].db_util->
+              append_column_value(spider, str_part, field, ptr,
+                share->access_charset))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+#else
+            if (str_part->length() == SPIDER_SQL_OPEN_PAREN_LEN)
+            {
+              if (str->reserve(SPIDER_SQL_EQUAL_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+              if (spider_dbton[dbton_id].db_util->
+                append_column_value(spider, str_part, field, ptr,
+                  share->access_charset))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            }
+#endif
+          }
+        }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+        else {
+          if (spider_dbton[share->use_hs_dbton_ids[0]].db_util->
+            append_column_value(spider, NULL, field, ptr,
+              share->access_charset))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+#endif
+      } else {
+        DBUG_PRINT("info", ("spider start_key->flag=%d", start_key->flag));
+        switch (start_key->flag)
+        {
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100000
+          case HA_READ_PREFIX_LAST:
+            result_list->desc_flg = TRUE;
+#endif
+            /* fall through */
+          case HA_READ_KEY_EXACT:
+            if (sql_kind == SPIDER_SQL_KIND_SQL)
+            {
+              if (str->reserve(store_length + key_name_length +
+                /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+                SPIDER_SQL_EQUAL_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              dbton_share->append_column_name(str, field->field_index);
+              str->q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+              if (spider_dbton[dbton_id].db_util->
+                append_column_value(spider, str, field, ptr,
+                  share->access_charset))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            } else if (sql_kind == SPIDER_SQL_KIND_HANDLER)
+            {
+              if (str_part2->reserve(store_length + key_name_length +
+                /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+                SPIDER_SQL_EQUAL_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              dbton_share->append_column_name(str_part2, field->field_index);
+              str_part2->q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+              if (spider_dbton[dbton_id].db_util->
+                append_column_value(spider, str_part2, field, ptr,
+                  share->access_charset))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+
+              if (use_key == start_key)
+              {
+#ifdef SPIDER_HANDLER_SUPPORT_MULTIPLE_KEY_PARTS
+                if (tgt_key_part_map == 1 || !end_key_part_map)
+                {
+                  if (str->reserve(SPIDER_SQL_EQUAL_LEN))
+                    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                  str->q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+                }
+                if (spider_dbton[dbton_id].db_util->
+                  append_column_value(spider, str_part, field, ptr,
+                    share->access_charset))
+                  DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+#else
+                if (str_part->length() == SPIDER_SQL_OPEN_PAREN_LEN)
+                {
+                  if (str->reserve(SPIDER_SQL_EQUAL_LEN))
+                    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                  str->q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+                  if (spider_dbton[dbton_id].db_util->
+                    append_column_value(spider, str_part, field, ptr,
+                      share->access_charset))
+                    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                }
+#endif
+              }
+            }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+            else {
+              if (spider_dbton[share->use_hs_dbton_ids[0]].db_util->
+                append_column_value(spider, NULL, field, ptr,
+                  share->access_charset))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              if (str->reserve(SPIDER_SQL_HS_EQUAL_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_HS_EQUAL_STR, SPIDER_SQL_HS_EQUAL_LEN);
+            }
+#endif
+            break;
+          case HA_READ_AFTER_KEY:
+            if (sql_kind == SPIDER_SQL_KIND_SQL)
+            {
+              const char* op_str;
+              uint32 op_len;
+              if (start_key_part_map == 1) {
+                op_str = SPIDER_SQL_GT_STR;
+                op_len = SPIDER_SQL_GT_LEN;
+              } else {
+                op_str = SPIDER_SQL_GTEQUAL_STR;
+                op_len = SPIDER_SQL_GTEQUAL_LEN;
+              }
+              if (str->reserve(store_length + key_name_length +
+                /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + op_len))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              dbton_share->append_column_name(str, field->field_index);
+              str->q_append(op_str, op_len);
+              if (spider_dbton[dbton_id].db_util->
+                append_column_value(spider, str, field, ptr,
+                  share->access_charset))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              if (use_both)
+                start_key_part_map = 0;
+              if (!set_order)
+              {
+                result_list->key_order = key_count;
+                set_order = TRUE;
+              }
+            } else if (sql_kind == SPIDER_SQL_KIND_HANDLER)
+            {
+              if (str_part2->reserve(store_length + key_name_length +
+                /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+                SPIDER_SQL_GT_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              dbton_share->append_column_name(str_part2, field->field_index);
+              str_part2->q_append(SPIDER_SQL_GT_STR, SPIDER_SQL_GT_LEN);
+              if (spider_dbton[dbton_id].db_util->
+                append_column_value(spider, str_part2, field, ptr,
+                  share->access_charset))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+
+              if (use_key == start_key)
+              {
+#ifdef SPIDER_HANDLER_SUPPORT_MULTIPLE_KEY_PARTS
+                if (tgt_key_part_map == 1 || !end_key_part_map)
+                {
+                  if (str->reserve(SPIDER_SQL_GT_LEN))
+                    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                  str->q_append(SPIDER_SQL_GT_STR, SPIDER_SQL_GT_LEN);
+                }
+                if (spider_dbton[dbton_id].db_util->
+                  append_column_value(spider, str_part, field, ptr,
+                    share->access_charset))
+                  DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+#else
+                if (str_part->length() == SPIDER_SQL_OPEN_PAREN_LEN)
+                {
+                  if (str->reserve(SPIDER_SQL_GT_LEN))
+                    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                  str->q_append(SPIDER_SQL_GT_STR, SPIDER_SQL_GT_LEN);
+                  if (spider_dbton[dbton_id].db_util->
+                    append_column_value(spider, str_part, field, ptr,
+                      share->access_charset))
+                    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                }
+#endif
+              }
+            }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+            else {
+              if (spider_dbton[share->use_hs_dbton_ids[0]].db_util->
+                append_column_value(spider, NULL, field, ptr,
+                  share->access_charset))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              if (str->reserve(SPIDER_SQL_HS_GT_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_HS_GT_STR, SPIDER_SQL_HS_GT_LEN);
+            }
+#endif
+            break;
+          case HA_READ_BEFORE_KEY:
+            result_list->desc_flg = TRUE;
+            if (sql_kind == SPIDER_SQL_KIND_SQL)
+            {
+              const char* op_str;
+              uint32 op_len;
+              if (start_key_part_map == 1) {
+                op_str = SPIDER_SQL_LT_STR;
+                op_len = SPIDER_SQL_LT_LEN;
+              } else {
+                op_str = SPIDER_SQL_LTEQUAL_STR;
+                op_len = SPIDER_SQL_LTEQUAL_LEN;
+              }
+              if (str->reserve(store_length + key_name_length +
+                /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + op_len))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              dbton_share->append_column_name(str, field->field_index);
+              str->q_append(op_str, op_len);
+              if (spider_dbton[dbton_id].db_util->
+                append_column_value(spider, str, field, ptr,
+                  share->access_charset))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              if (use_both)
+                start_key_part_map = 0;
+              if (!set_order)
+              {
+                result_list->key_order = key_count;
+                set_order = TRUE;
+              }
+            } else if (sql_kind == SPIDER_SQL_KIND_HANDLER)
+            {
+              if (str_part2->reserve(store_length + key_name_length +
+                /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+                SPIDER_SQL_LT_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              dbton_share->append_column_name(str_part2, field->field_index);
+              str_part2->q_append(SPIDER_SQL_LT_STR, SPIDER_SQL_LT_LEN);
+              if (spider_dbton[dbton_id].db_util->
+                append_column_value(spider, str_part2, field, ptr,
+                  share->access_charset))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+
+              if (use_key == start_key)
+              {
+#ifdef SPIDER_HANDLER_SUPPORT_MULTIPLE_KEY_PARTS
+                if (tgt_key_part_map == 1 || !end_key_part_map)
+                {
+                  if (str->reserve(SPIDER_SQL_LT_LEN))
+                    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                  str->q_append(SPIDER_SQL_LT_STR, SPIDER_SQL_LT_LEN);
+                }
+                if (spider_dbton[dbton_id].db_util->
+                  append_column_value(spider, str_part, field, ptr,
+                    share->access_charset))
+                  DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+#else
+                if (str_part->length() == SPIDER_SQL_OPEN_PAREN_LEN)
+                {
+                  if (str->reserve(SPIDER_SQL_LT_LEN))
+                    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                  str->q_append(SPIDER_SQL_LT_STR, SPIDER_SQL_LT_LEN);
+                  if (spider_dbton[dbton_id].db_util->
+                    append_column_value(spider, str_part, field, ptr,
+                      share->access_charset))
+                    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                }
+#endif
+              }
+            }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+            else {
+              if (spider_dbton[share->use_hs_dbton_ids[0]].db_util->
+                append_column_value(spider, NULL, field, ptr,
+                  share->access_charset))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              if (str->reserve(SPIDER_SQL_HS_LT_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_HS_LT_STR, SPIDER_SQL_HS_LT_LEN);
+            }
+#endif
+            break;
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100000
+#else
+          case HA_READ_PREFIX_LAST:
+            result_list->limit_num = 1;
+            /* fall through */
+#endif
+          case HA_READ_KEY_OR_PREV:
+          case HA_READ_PREFIX_LAST_OR_PREV:
+            result_list->desc_flg = TRUE;
+            if (sql_kind == SPIDER_SQL_KIND_SQL)
+            {
+              if (str->reserve(store_length + key_name_length +
+                /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+                SPIDER_SQL_LTEQUAL_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              dbton_share->append_column_name(str, field->field_index);
+              str->q_append(SPIDER_SQL_LTEQUAL_STR, SPIDER_SQL_LTEQUAL_LEN);
+              if (spider_dbton[dbton_id].db_util->
+                append_column_value(spider, str, field, ptr,
+                  share->access_charset))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              if (!set_order)
+              {
+                result_list->key_order = key_count;
+                set_order = TRUE;
+              }
+            } else if (sql_kind == SPIDER_SQL_KIND_HANDLER)
+            {
+              if (str_part2->reserve(store_length + key_name_length +
+                /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+                SPIDER_SQL_LTEQUAL_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              dbton_share->append_column_name(str_part2, field->field_index);
+              str_part2->q_append(SPIDER_SQL_LTEQUAL_STR,
+                SPIDER_SQL_LTEQUAL_LEN);
+              if (spider_dbton[dbton_id].db_util->
+                append_column_value(spider, str_part2, field, ptr,
+                  share->access_charset))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+
+              if (use_key == start_key)
+              {
+#ifdef SPIDER_HANDLER_SUPPORT_MULTIPLE_KEY_PARTS
+                if (tgt_key_part_map == 1 || !end_key_part_map)
+                {
+                  if (str->reserve(SPIDER_SQL_LTEQUAL_LEN))
+                    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                  str->q_append(SPIDER_SQL_LTEQUAL_STR,
+                    SPIDER_SQL_LTEQUAL_LEN);
+                }
+                if (spider_dbton[dbton_id].db_util->
+                  append_column_value(spider, str_part, field, ptr,
+                    share->access_charset))
+                  DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+#else
+                if (str_part->length() == SPIDER_SQL_OPEN_PAREN_LEN)
+                {
+                  if (str->reserve(SPIDER_SQL_LTEQUAL_LEN))
+                    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                  str->q_append(SPIDER_SQL_LTEQUAL_STR,
+                    SPIDER_SQL_LTEQUAL_LEN);
+                  if (spider_dbton[dbton_id].db_util->
+                    append_column_value(spider, str_part, field, ptr,
+                      share->access_charset))
+                    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                }
+#endif
+              }
+            }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+            else {
+              if (spider_dbton[share->use_hs_dbton_ids[0]].db_util->
+                append_column_value(spider, NULL, field, ptr,
+                  share->access_charset))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              if (str->reserve(SPIDER_SQL_HS_LTEQUAL_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_HS_LTEQUAL_STR,
+                SPIDER_SQL_HS_LTEQUAL_LEN);
+            }
+#endif
+            break;
+          case HA_READ_MBR_CONTAIN:
+            if (str->reserve(SPIDER_SQL_MBR_CONTAIN_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(SPIDER_SQL_MBR_CONTAIN_STR,
+              SPIDER_SQL_MBR_CONTAIN_LEN);
+            if (
+              spider_dbton[dbton_id].db_util->
+                append_column_value(spider, str, field, ptr,
+                  share->access_charset) ||
+              str->reserve(SPIDER_SQL_COMMA_LEN + key_name_length +
+                /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_CLOSE_PAREN_LEN)
+            )
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+            dbton_share->append_column_name(str, field->field_index);
+            str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+              SPIDER_SQL_CLOSE_PAREN_LEN);
+            break;
+          case HA_READ_MBR_INTERSECT:
+            if (str->reserve(SPIDER_SQL_MBR_INTERSECT_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(SPIDER_SQL_MBR_INTERSECT_STR,
+              SPIDER_SQL_MBR_INTERSECT_LEN);
+            if (
+              spider_dbton[dbton_id].db_util->
+                append_column_value(spider, str, field, ptr,
+                  share->access_charset) ||
+              str->reserve(SPIDER_SQL_COMMA_LEN + key_name_length +
+                /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_CLOSE_PAREN_LEN)
+            )
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+            dbton_share->append_column_name(str, field->field_index);
+            str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+              SPIDER_SQL_CLOSE_PAREN_LEN);
+            break;
+          case HA_READ_MBR_WITHIN:
+            if (str->reserve(SPIDER_SQL_MBR_WITHIN_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(SPIDER_SQL_MBR_WITHIN_STR,
+              SPIDER_SQL_MBR_WITHIN_LEN);
+            if (
+              spider_dbton[dbton_id].db_util->
+                append_column_value(spider, str, field, ptr,
+                  share->access_charset) ||
+              str->reserve(SPIDER_SQL_COMMA_LEN + key_name_length +
+                /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_CLOSE_PAREN_LEN)
+            )
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+            dbton_share->append_column_name(str, field->field_index);
+            str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+              SPIDER_SQL_CLOSE_PAREN_LEN);
+            break;
+          case HA_READ_MBR_DISJOINT:
+            if (str->reserve(SPIDER_SQL_MBR_DISJOINT_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(SPIDER_SQL_MBR_DISJOINT_STR,
+              SPIDER_SQL_MBR_DISJOINT_LEN);
+            if (
+              spider_dbton[dbton_id].db_util->
+                append_column_value(spider, str, field, ptr,
+                  share->access_charset) ||
+              str->reserve(SPIDER_SQL_COMMA_LEN + key_name_length +
+                /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_CLOSE_PAREN_LEN)
+            )
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+            dbton_share->append_column_name(str, field->field_index);
+            str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+              SPIDER_SQL_CLOSE_PAREN_LEN);
+            break;
+          case HA_READ_MBR_EQUAL:
+            if (str->reserve(SPIDER_SQL_MBR_EQUAL_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(SPIDER_SQL_MBR_EQUAL_STR, SPIDER_SQL_MBR_EQUAL_LEN);
+            if (
+              spider_dbton[dbton_id].db_util->
+                append_column_value(spider, str, field, ptr,
+                  share->access_charset) ||
+              str->reserve(SPIDER_SQL_COMMA_LEN + key_name_length +
+                /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_CLOSE_PAREN_LEN)
+            )
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+            dbton_share->append_column_name(str, field->field_index);
+            str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+              SPIDER_SQL_CLOSE_PAREN_LEN);
+            break;
+          default:
+            if (sql_kind == SPIDER_SQL_KIND_SQL)
+            {
+              if (str->reserve(store_length + key_name_length +
+                /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+                SPIDER_SQL_GTEQUAL_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              dbton_share->append_column_name(str, field->field_index);
+              str->q_append(SPIDER_SQL_GTEQUAL_STR, SPIDER_SQL_GTEQUAL_LEN);
+              if (spider_dbton[dbton_id].db_util->
+                append_column_value(spider, str, field, ptr,
+                  share->access_charset))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              if (!set_order)
+              {
+                result_list->key_order = key_count;
+                set_order = TRUE;
+              }
+            } else if (sql_kind == SPIDER_SQL_KIND_HANDLER)
+            {
+              if (str_part2->reserve(store_length + key_name_length +
+                /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+                SPIDER_SQL_GTEQUAL_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              dbton_share->append_column_name(str_part2, field->field_index);
+              str_part2->q_append(SPIDER_SQL_GTEQUAL_STR,
+                SPIDER_SQL_GTEQUAL_LEN);
+              if (spider_dbton[dbton_id].db_util->
+                append_column_value(spider, str_part2, field, ptr,
+                  share->access_charset))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+
+              if (use_key == start_key)
+              {
+#ifdef SPIDER_HANDLER_SUPPORT_MULTIPLE_KEY_PARTS
+                if (tgt_key_part_map == 1 || !end_key_part_map)
+                {
+                  if (str->reserve(SPIDER_SQL_GTEQUAL_LEN))
+                    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                  str->q_append(SPIDER_SQL_GTEQUAL_STR,
+                    SPIDER_SQL_GTEQUAL_LEN);
+                }
+                if (spider_dbton[dbton_id].db_util->
+                  append_column_value(spider, str_part, field, ptr,
+                    share->access_charset))
+                  DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+#else
+                if (str_part->length() == SPIDER_SQL_OPEN_PAREN_LEN)
+                {
+                  if (str->reserve(SPIDER_SQL_GTEQUAL_LEN))
+                    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                  str->q_append(SPIDER_SQL_GTEQUAL_STR,
+                    SPIDER_SQL_GTEQUAL_LEN);
+                  if (spider_dbton[dbton_id].db_util->
+                    append_column_value(spider, str_part, field, ptr,
+                      share->access_charset))
+                    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                }
+#endif
+              }
+            }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+            else {
+              if (spider_dbton[share->use_hs_dbton_ids[0]].db_util->
+                append_column_value(spider, NULL, field, ptr,
+                  share->access_charset))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              if (str->reserve(SPIDER_SQL_HS_GTEQUAL_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_HS_GTEQUAL_STR,
+                SPIDER_SQL_HS_GTEQUAL_LEN);
+            }
+#endif
+            break;
+        }
+      }
+      if (sql_kind == SPIDER_SQL_KIND_SQL)
+      {
+        if (str->reserve(SPIDER_SQL_AND_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_AND_STR,
+          SPIDER_SQL_AND_LEN);
+      } else if (sql_kind == SPIDER_SQL_KIND_HANDLER)
+      {
+        if (str_part2->reserve(SPIDER_SQL_AND_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str_part2->q_append(SPIDER_SQL_AND_STR,
+          SPIDER_SQL_AND_LEN);
+
+#ifdef SPIDER_HANDLER_SUPPORT_MULTIPLE_KEY_PARTS
+        if (use_key == start_key)
+        {
+          if (str_part->reserve(SPIDER_SQL_COMMA_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str_part->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+        }
+#endif
+      }
+    }
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    if (sql_kind != SPIDER_SQL_KIND_HS)
+    {
+#endif
+      if (
+        (key_eq && use_key == end_key) ||
+        (!key_eq && end_key_part_map)
+      ) {
+        bool tgt_final = (use_key == end_key && tgt_key_part_map == 1);
+        ptr = end_key->key + length;
+        if ((error_num = dbton_hdl->append_is_null_part(sql_type, key_part,
+          end_key, &ptr, key_eq, tgt_final)))
+        {
+          if (error_num > 0)
+            DBUG_RETURN(error_num);
+          if (
+            !set_order &&
+            end_key->flag != HA_READ_KEY_EXACT &&
+            sql_kind == SPIDER_SQL_KIND_SQL
+          ) {
+            result_list->key_order = key_count;
+            set_order = TRUE;
+          }
+        } else if (key_eq)
+        {
+          DBUG_PRINT("info", ("spider key_eq"));
+          if (sql_kind == SPIDER_SQL_KIND_SQL)
+          {
+            if (str->reserve(store_length + key_name_length +
+              /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+              SPIDER_SQL_EQUAL_LEN + SPIDER_SQL_AND_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            dbton_share->append_column_name(str, field->field_index);
+            str->q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+            if (spider_dbton[dbton_id].db_util->
+              append_column_value(spider, str, field, ptr,
+                share->access_charset))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          } else {
+            if (str_part2->reserve(store_length + key_name_length +
+              /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+              SPIDER_SQL_EQUAL_LEN + SPIDER_SQL_AND_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            dbton_share->append_column_name(str_part2, field->field_index);
+            str_part2->q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+            if (spider_dbton[dbton_id].db_util->
+              append_column_value(spider, str_part2, field, ptr,
+                share->access_charset))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+
+            if (use_key == end_key)
+            {
+#ifdef SPIDER_HANDLER_SUPPORT_MULTIPLE_KEY_PARTS
+              if (spider_dbton[dbton_id].db_util->
+                append_column_value(spider, str_part, field, ptr,
+                  share->access_charset))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+#else
+              if (str_part->length() == SPIDER_SQL_OPEN_PAREN_LEN)
+              {
+                if (str->reserve(SPIDER_SQL_EQUAL_LEN))
+                  DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                str->q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+                if (spider_dbton[dbton_id].db_util->
+                  append_column_value(spider, str_part, field, ptr,
+                    share->access_charset))
+                  DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              }
+#endif
+            }
+          }
+        } else {
+          DBUG_PRINT("info", ("spider end_key->flag=%d", end_key->flag));
+          switch (end_key->flag)
+          {
+            case HA_READ_BEFORE_KEY:
+              if (sql_kind == SPIDER_SQL_KIND_SQL)
+              {
+                const char* op_str;
+                uint32 op_len;
+                if (end_key_part_map == 1) {
+                  op_str = SPIDER_SQL_LT_STR;
+                  op_len = SPIDER_SQL_LT_LEN;
+                } else {
+                  op_str = SPIDER_SQL_LTEQUAL_STR;
+                  op_len = SPIDER_SQL_LTEQUAL_LEN;
+                }
+                if (str->reserve(store_length + key_name_length +
+                  /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + op_len))
+                  DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                dbton_share->append_column_name(str, field->field_index);
+                str->q_append(op_str, op_len);
+                if (spider_dbton[dbton_id].db_util->
+                  append_column_value(spider, str, field, ptr,
+                    share->access_charset))
+                  DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                if (use_both)
+                  end_key_part_map = 0;
+                if (!set_order)
+                {
+                  result_list->key_order = key_count;
+                  set_order = TRUE;
+                }
+              } else {
+                if (str_part2->reserve(store_length + key_name_length +
+                  /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+                  SPIDER_SQL_LT_LEN))
+                  DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                dbton_share->append_column_name(str_part2, field->field_index);
+                str_part2->q_append(SPIDER_SQL_LT_STR, SPIDER_SQL_LT_LEN);
+                if (spider_dbton[dbton_id].db_util->
+                  append_column_value(spider, str_part2, field, ptr,
+                    share->access_charset))
+                  DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+
+                if (use_key == end_key)
+                {
+#ifdef SPIDER_HANDLER_SUPPORT_MULTIPLE_KEY_PARTS
+                  if (tgt_key_part_map == 1 || !start_key_part_map)
+                  {
+                    if (str->reserve(SPIDER_SQL_LT_LEN))
+                      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                    str->q_append(SPIDER_SQL_LT_STR, SPIDER_SQL_LT_LEN);
+                  }
+                  if (spider_dbton[dbton_id].db_util->
+                    append_column_value(spider, str_part, field, ptr,
+                      share->access_charset))
+                    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+#else
+                  if (str_part->length() == SPIDER_SQL_OPEN_PAREN_LEN)
+                  {
+                    if (str->reserve(SPIDER_SQL_LT_LEN))
+                      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                    str->q_append(SPIDER_SQL_LT_STR, SPIDER_SQL_LT_LEN);
+                    if (spider_dbton[dbton_id].db_util->
+                      append_column_value(spider, str_part, field, ptr,
+                        share->access_charset))
+                      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                  }
+#endif
+                }
+              }
+              break;
+            default:
+              if (sql_kind == SPIDER_SQL_KIND_SQL)
+              {
+                if (str->reserve(store_length + key_name_length +
+                  /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+                  SPIDER_SQL_LTEQUAL_LEN))
+                  DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                dbton_share->append_column_name(str, field->field_index);
+                str->q_append(SPIDER_SQL_LTEQUAL_STR, SPIDER_SQL_LTEQUAL_LEN);
+                if (spider_dbton[dbton_id].db_util->
+                  append_column_value(spider, str, field, ptr,
+                    share->access_charset))
+                  DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                if (!set_order)
+                {
+                  result_list->key_order = key_count;
+                  set_order = TRUE;
+                }
+              } else {
+                if (str_part2->reserve(store_length + key_name_length +
+                  /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+                  SPIDER_SQL_LTEQUAL_LEN))
+                  DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                dbton_share->append_column_name(str_part2, field->field_index);
+                str_part2->q_append(SPIDER_SQL_LTEQUAL_STR,
+                  SPIDER_SQL_LTEQUAL_LEN);
+                if (spider_dbton[dbton_id].db_util->
+                  append_column_value(spider, str_part2, field, ptr,
+                    share->access_charset))
+                  DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+
+                if (use_key == end_key)
+                {
+#ifdef SPIDER_HANDLER_SUPPORT_MULTIPLE_KEY_PARTS
+                  if (tgt_key_part_map == 1 || !start_key_part_map)
+                  {
+                    if (str->reserve(SPIDER_SQL_LTEQUAL_LEN))
+                      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                    str->q_append(SPIDER_SQL_LTEQUAL_STR,
+                      SPIDER_SQL_LTEQUAL_LEN);
+                  }
+                  if (spider_dbton[dbton_id].db_util->
+                    append_column_value(spider, str_part, field, ptr,
+                      share->access_charset))
+                    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+#else
+                  if (str_part->length() == SPIDER_SQL_OPEN_PAREN_LEN)
+                  {
+                    if (str->reserve(SPIDER_SQL_LTEQUAL_LEN))
+                      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                    str->q_append(SPIDER_SQL_LTEQUAL_STR,
+                      SPIDER_SQL_LTEQUAL_LEN);
+                    if (spider_dbton[dbton_id].db_util->
+                      append_column_value(spider, str_part, field, ptr,
+                        share->access_charset))
+                      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                  }
+#endif
+                }
+              }
+              break;
+          }
+        }
+        if (sql_kind == SPIDER_SQL_KIND_SQL)
+        {
+          if (str->reserve(SPIDER_SQL_AND_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(SPIDER_SQL_AND_STR,
+            SPIDER_SQL_AND_LEN);
+        } else {
+          if (str_part2->reserve(SPIDER_SQL_AND_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str_part2->q_append(SPIDER_SQL_AND_STR,
+            SPIDER_SQL_AND_LEN);
+
+#ifdef SPIDER_HANDLER_SUPPORT_MULTIPLE_KEY_PARTS
+          if (use_key == end_key)
+          {
+            if (str_part->reserve(SPIDER_SQL_COMMA_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str_part->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+          }
+#endif
+        }
+      }
+      if (use_both && (!start_key_part_map || !end_key_part_map))
+        break;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    }
+#endif
+  }
+  if ((error_num = dbton_hdl->append_where_terminator_part(sql_type,
+    set_order, key_count)))
+    DBUG_RETURN(error_num);
+
+end:
+  if (spider->multi_range_num && current_pos == str->length())
+  {
+    DBUG_PRINT("info", ("spider no key where condition"));
+    dbton_hdl->no_where_cond = TRUE;
+  }
+  /* use condition */
+  if (dbton_hdl->append_condition_part(NULL, 0, sql_type, FALSE))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  if (sql_kind == SPIDER_SQL_KIND_SQL)
+    dbton_hdl->set_order_pos(sql_type);
+#ifndef DBUG_OFF
+  dbug_tmp_restore_column_map(&table->read_set, tmp_map);
+#endif
+  DBUG_RETURN(0);
+}
+
+int spider_db_append_key_where(
+  const key_range *start_key,
+  const key_range *end_key,
+  ha_spider *spider
+) {
+  int error_num;
+  DBUG_ENTER("spider_db_append_key_where");
+  if ((spider->sql_kinds & SPIDER_SQL_KIND_SQL))
+  {
+    DBUG_PRINT("info",("spider call internal by SPIDER_SQL_KIND_SQL"));
+    if ((error_num = spider->append_key_where_sql_part(start_key, end_key,
+      SPIDER_SQL_TYPE_SELECT_SQL)))
+      DBUG_RETURN(error_num);
+  }
+  if (spider->sql_kinds & SPIDER_SQL_KIND_HANDLER)
+  {
+    DBUG_PRINT("info",("spider call internal by SPIDER_SQL_KIND_HANDLER"));
+    if ((error_num = spider->append_key_where_sql_part(start_key, end_key,
+      SPIDER_SQL_TYPE_HANDLER)))
+      DBUG_RETURN(error_num);
+  }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if ((spider->sql_kinds & SPIDER_SQL_KIND_HS))
+  {
+    DBUG_PRINT("info",("spider call internal by SPIDER_SQL_KIND_HS"));
+    if ((error_num = spider->append_key_where_hs_part(start_key, end_key,
+      SPIDER_SQL_TYPE_SELECT_HS)))
+      DBUG_RETURN(error_num);
+  }
+#endif
+  DBUG_RETURN(0);
+}
+
+int spider_db_append_charset_name_before_string(
+  spider_string *str,
+  CHARSET_INFO *cs
+) {
+  const char *csname = cs->csname;
+  uint csname_length = strlen(csname);
+  DBUG_ENTER("spider_db_append_charset_name_before_string");
+  if (str->reserve(SPIDER_SQL_UNDERSCORE_LEN + csname_length))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str->q_append(SPIDER_SQL_UNDERSCORE_STR, SPIDER_SQL_UNDERSCORE_LEN);
+  str->q_append(csname, csname_length);
+  DBUG_RETURN(0);
+}
+
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+int spider_db_refetch_for_item_sum_funcs(
+  ha_spider *spider
+) {
+  int error_num;
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  DBUG_ENTER("spider_db_refetch_for_item_sum_funcs");
+  if (result_list->snap_direct_aggregate)
+  {
+    SPIDER_DB_ROW *row = result_list->snap_row;
+    row->first();
+    if (result_list->snap_mrr_with_cnt)
+    {
+      row->next();
+    }
+    if ((error_num = spider_db_fetch_for_item_sum_funcs(row, spider)))
+      DBUG_RETURN(error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_fetch_for_item_sum_funcs(
+  SPIDER_DB_ROW *row,
+  ha_spider *spider
+) {
+  int error_num;
+  st_select_lex *select_lex;
+  DBUG_ENTER("spider_db_fetch_for_item_sum_funcs");
+  select_lex = spider_get_select_lex(spider);
+  JOIN *join = select_lex->join;
+  Item_sum **item_sum_ptr;
+  spider->direct_aggregate_item_current = NULL;
+  for (item_sum_ptr = join->sum_funcs; *item_sum_ptr; ++item_sum_ptr)
+  {
+    if ((error_num = spider_db_fetch_for_item_sum_func(row, *item_sum_ptr,
+      spider)))
+      DBUG_RETURN(error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_fetch_for_item_sum_func(
+  SPIDER_DB_ROW *row,
+  Item_sum *item_sum,
+  ha_spider *spider
+) {
+  int error_num;
+  SPIDER_SHARE *share = spider->share;
+  THD *thd = spider->wide_handler->trx->thd;
+  DBUG_ENTER("spider_db_fetch_for_item_sum_func");
+  DBUG_PRINT("info",("spider Sumfunctype = %d", item_sum->sum_func()));
+  switch (item_sum->sum_func())
+  {
+    case Item_sum::COUNT_FUNC:
+      {
+        Item_sum_count *item_sum_count = (Item_sum_count *) item_sum;
+        if (!row->is_null())
+          item_sum_count->direct_add(row->val_int());
+        else
+          DBUG_RETURN(ER_SPIDER_UNKNOWN_NUM);
+        row->next();
+      }
+      break;
+    case Item_sum::SUM_FUNC:
+      {
+        Item_sum_sum *item_sum_sum = (Item_sum_sum *) item_sum;
+        if (item_sum_sum->result_type() == DECIMAL_RESULT)
+        {
+          my_decimal decimal_value;
+          item_sum_sum->direct_add(row->val_decimal(&decimal_value,
+            share->access_charset));
+        } else {
+          item_sum_sum->direct_add(row->val_real(), row->is_null());
+        }
+        row->next();
+      }
+      break;
+    case Item_sum::MIN_FUNC:
+    case Item_sum::MAX_FUNC:
+      {
+        if (!spider->direct_aggregate_item_current)
+        {
+          if (!spider->direct_aggregate_item_first)
+          {
+            if (!spider_bulk_malloc(spider_current_trx, 240, MYF(MY_WME),
+              &spider->direct_aggregate_item_first,
+              (uint) (sizeof(SPIDER_ITEM_HLD)),
+              NullS)
+            ) {
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            }
+            spider->direct_aggregate_item_first->next = NULL;
+            spider->direct_aggregate_item_first->item = NULL;
+            spider->direct_aggregate_item_first->tgt_num = 0;
+#ifdef SPIDER_ITEM_STRING_WITHOUT_SET_STR_WITH_COPY_AND_THDPTR
+            spider->direct_aggregate_item_first->init_mem_root = FALSE;
+#endif
+          }
+          spider->direct_aggregate_item_current =
+            spider->direct_aggregate_item_first;
+        } else {
+          if (!spider->direct_aggregate_item_current->next)
+          {
+            if (!spider_bulk_malloc(spider_current_trx, 241, MYF(MY_WME),
+              &spider->direct_aggregate_item_current->next,
+              (uint) (sizeof(SPIDER_ITEM_HLD)), NullS)
+            ) {
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            }
+            spider->direct_aggregate_item_current->next->next = NULL;
+            spider->direct_aggregate_item_current->next->item = NULL;
+            spider->direct_aggregate_item_current->next->tgt_num =
+              spider->direct_aggregate_item_current->tgt_num + 1;
+#ifdef SPIDER_ITEM_STRING_WITHOUT_SET_STR_WITH_COPY_AND_THDPTR
+            spider->direct_aggregate_item_current->next->init_mem_root = FALSE;
+#endif
+          }
+          spider->direct_aggregate_item_current =
+            spider->direct_aggregate_item_current->next;
+        }
+        if (!spider->direct_aggregate_item_current->item)
+        {
+#ifdef SPIDER_ITEM_STRING_WITHOUT_SET_STR_WITH_COPY_AND_THDPTR
+          if (!spider->direct_aggregate_item_current->init_mem_root)
+          {
+            SPD_INIT_ALLOC_ROOT(
+              &spider->direct_aggregate_item_current->mem_root,
+              4096, 0, MYF(MY_WME));
+            spider->direct_aggregate_item_current->init_mem_root = TRUE;
+          }
+#endif
+          Item *free_list = thd->free_list;
+          spider->direct_aggregate_item_current->item =
+#ifdef SPIDER_ITEM_STRING_WITHOUT_SET_STR_WITH_COPY
+#ifdef SPIDER_ITEM_STRING_WITHOUT_SET_STR_WITH_COPY_AND_THDPTR
+            new (&spider->direct_aggregate_item_current->mem_root)
+              Item_string(thd, "", 0, share->access_charset);
+#else
+            new Item_string("", 0, share->access_charset);
+#endif
+#else
+            new Item_string(share->access_charset);
+#endif
+          if (!spider->direct_aggregate_item_current->item)
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          thd->free_list = free_list;
+        }
+
+        Item_sum_min_max *item_sum_min_max = (Item_sum_min_max *) item_sum;
+        Item_string *item =
+          (Item_string *) spider->direct_aggregate_item_current->item;
+        if (row->is_null())
+        {
+#ifdef SPIDER_ITEM_STRING_WITHOUT_SET_STR_WITH_COPY
+          item->val_str(NULL)->length(0);
+          item->append(NULL, 0);
+#else
+          item->set_str_with_copy(NULL, 0);
+#endif
+          item->null_value = TRUE;
+        } else {
+          char buf[MAX_FIELD_WIDTH];
+          spider_string tmp_str(buf, MAX_FIELD_WIDTH, share->access_charset);
+          tmp_str.init_calc_mem(242);
+          tmp_str.length(0);
+          if ((error_num = row->append_to_str(&tmp_str)))
+            DBUG_RETURN(error_num);
+#ifdef SPIDER_ITEM_STRING_WITHOUT_SET_STR_WITH_COPY
+          item->val_str(NULL)->length(0);
+          item->append((char *) tmp_str.ptr(), tmp_str.length());
+#else
+          item->set_str_with_copy(tmp_str.ptr(), tmp_str.length());
+#endif
+          item->null_value = FALSE;
+        }
+        item_sum_min_max->direct_add(item);
+        row->next();
+      }
+      break;
+    case Item_sum::COUNT_DISTINCT_FUNC:
+    case Item_sum::SUM_DISTINCT_FUNC:
+    case Item_sum::AVG_FUNC:
+    case Item_sum::AVG_DISTINCT_FUNC:
+    case Item_sum::STD_FUNC:
+    case Item_sum::VARIANCE_FUNC:
+    case Item_sum::SUM_BIT_FUNC:
+    case Item_sum::UDF_SUM_FUNC:
+    case Item_sum::GROUP_CONCAT_FUNC:
+    default:
+      DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+  }
+  DBUG_RETURN(0);
+}
+#endif
+
+int spider_db_append_match_fetch(
+  ha_spider *spider,
+  st_spider_ft_info *ft_first,
+  st_spider_ft_info *ft_current,
+  SPIDER_DB_ROW *row
+) {
+  DBUG_ENTER("spider_db_append_match_fetch");
+  if (ft_current)
+  {
+    st_spider_ft_info *ft_info = ft_first;
+    while (TRUE)
+    {
+      DBUG_PRINT("info",("spider ft_info=%p", ft_info));
+      if (!row->is_null())
+        ft_info->score = (float) row->val_real();
+      else
+        DBUG_RETURN(ER_SPIDER_UNKNOWN_NUM);
+      row->next();
+      if (ft_info == ft_current)
+        break;
+      ft_info = ft_info->next;
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_append_match_where(
+  ha_spider *spider
+) {
+  int error_num;
+  DBUG_ENTER("spider_db_append_match_where");
+  if ((error_num = spider->append_match_where_sql_part(
+    SPIDER_SQL_TYPE_SELECT_SQL)))
+    DBUG_RETURN(error_num);
+
+  /* use condition */
+  if ((error_num = spider->append_condition_sql_part(
+    NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL, FALSE)))
+    DBUG_RETURN(error_num);
+
+  spider->set_order_pos_sql(SPIDER_SQL_TYPE_SELECT_SQL);
+  DBUG_RETURN(0);
+}
+
+void spider_db_append_handler_next(
+  ha_spider *spider
+) {
+  const char *alias;
+  uint alias_length;
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  DBUG_ENTER("spider_db_append_handler_next");
+  if (result_list->sorted && result_list->desc_flg)
+  {
+    alias = SPIDER_SQL_PREV_STR;
+    alias_length = SPIDER_SQL_PREV_LEN;
+  } else {
+    alias = SPIDER_SQL_NEXT_STR;
+    alias_length = SPIDER_SQL_NEXT_LEN;
+  }
+  spider->set_order_to_pos_sql(SPIDER_SQL_TYPE_HANDLER);
+  spider->append_key_order_with_alias_sql_part(alias, alias_length,
+    SPIDER_SQL_TYPE_HANDLER);
+  DBUG_VOID_RETURN;
+}
+
+void spider_db_get_row_from_tmp_tbl_rec(
+  SPIDER_RESULT *current,
+  SPIDER_DB_ROW **row
+) {
+  DBUG_ENTER("spider_db_get_row_from_tmp_tbl_rec");
+  *row = current->result->fetch_row_from_tmp_table(current->result_tmp_tbl);
+  DBUG_VOID_RETURN;
+}
+
+int spider_db_get_row_from_tmp_tbl(
+  SPIDER_RESULT *current,
+  SPIDER_DB_ROW **row
+) {
+  int error_num;
+  DBUG_ENTER("spider_db_get_row_from_tmp_tbl");
+  if (current->result_tmp_tbl_inited == 2)
+  {
+    current->result_tmp_tbl->file->ha_rnd_end();
+    current->result_tmp_tbl_inited = 0;
+  }
+  if (current->result_tmp_tbl_inited == 0)
+  {
+    current->result_tmp_tbl->file->extra(HA_EXTRA_CACHE);
+    if ((error_num = current->result_tmp_tbl->file->ha_rnd_init(TRUE)))
+      DBUG_RETURN(error_num);
+    current->result_tmp_tbl_inited = 1;
+  }
+  if (
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 50200
+    (error_num = current->result_tmp_tbl->file->ha_rnd_next(
+      current->result_tmp_tbl->record[0]))
+#else
+    (error_num = current->result_tmp_tbl->file->rnd_next(
+      current->result_tmp_tbl->record[0]))
+#endif
+  ) {
+    DBUG_RETURN(error_num);
+  }
+  spider_db_get_row_from_tmp_tbl_rec(current, row);
+  DBUG_RETURN(0);
+}
+
+int spider_db_get_row_from_tmp_tbl_pos(
+  SPIDER_POSITION *pos,
+  SPIDER_DB_ROW **row
+) {
+  int error_num;
+  SPIDER_RESULT *result = pos->result;
+  TABLE *tmp_tbl = result->result_tmp_tbl;
+  DBUG_ENTER("spider_db_get_row_from_tmp_tbl_pos");
+  if (result->result_tmp_tbl_inited == 1)
+  {
+    tmp_tbl->file->ha_rnd_end();
+    result->result_tmp_tbl_inited = 0;
+  }
+  if (result->result_tmp_tbl_inited == 0)
+  {
+    if ((error_num = tmp_tbl->file->ha_rnd_init(FALSE)))
+      DBUG_RETURN(error_num);
+    result->result_tmp_tbl_inited = 2;
+  }
+  if (
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 50200
+    (error_num = tmp_tbl->file->ha_rnd_pos(tmp_tbl->record[0],
+      (uchar *) &pos->tmp_tbl_pos))
+#else
+    (error_num = tmp_tbl->file->rnd_pos(tmp_tbl->record[0],
+      (uchar *) &pos->tmp_tbl_pos))
+#endif
+  ) {
+    DBUG_RETURN(error_num);
+  }
+  spider_db_get_row_from_tmp_tbl_rec(result, row);
+  DBUG_RETURN(0);
+}
+
+int spider_db_fetch_row(
+  SPIDER_SHARE *share,
+  Field *field,
+  SPIDER_DB_ROW *row,
+  my_ptrdiff_t ptr_diff
+) {
+  int error_num;
+  THD *thd = field->table->in_use;
+  Time_zone *saved_time_zone = thd->variables.time_zone;
+  DBUG_ENTER("spider_db_fetch_row");
+  DBUG_PRINT("info", ("spider field_name %s", SPIDER_field_name_str(field)));
+  DBUG_PRINT("info", ("spider fieldcharset %s", field->charset()->csname));
+
+  thd->variables.time_zone = UTC;
+
+  field->move_field_offset(ptr_diff);
+  error_num = row->store_to_field(field, share->access_charset);
+  field->move_field_offset(-ptr_diff);
+
+  thd->variables.time_zone = saved_time_zone;
+
+  DBUG_RETURN(error_num);
+}
+
+int spider_db_fetch_table(
+  ha_spider *spider,
+  uchar *buf,
+  TABLE *table,
+  SPIDER_RESULT_LIST *result_list
+) {
+  int error_num;
+  SPIDER_SHARE *share = spider->share;
+  my_ptrdiff_t ptr_diff = PTR_BYTE_DIFF(buf, table->record[0]);
+  SPIDER_RESULT *current = (SPIDER_RESULT*) result_list->current;
+  SPIDER_DB_ROW *row;
+  Field **field;
+  DBUG_ENTER("spider_db_fetch_table");
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (spider->conn_kind[spider->result_link_idx] == SPIDER_CONN_KIND_MYSQL)
+  {
+#endif
+    if (result_list->quick_mode == 0)
+    {
+      SPIDER_DB_RESULT *result = current->result;
+      if (!(row = result->fetch_row()))
+      {
+        table->status = STATUS_NOT_FOUND;
+        DBUG_RETURN(HA_ERR_END_OF_FILE);
+      }
+    } else {
+      if (result_list->current_row_num < result_list->quick_page_size)
+      {
+        if (!current->first_position)
+        {
+          table->status = STATUS_NOT_FOUND;
+          DBUG_RETURN(HA_ERR_END_OF_FILE);
+        }
+        row = current->first_position[result_list->current_row_num].row;
+      } else {
+        if ((error_num = spider_db_get_row_from_tmp_tbl(
+          current, &row)))
+        {
+          if (error_num == HA_ERR_END_OF_FILE)
+            table->status = STATUS_NOT_FOUND;
+          DBUG_RETURN(error_num);
+        }
+      }
+    }
+
+    DBUG_PRINT("info", ("spider row=%p", row));
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+    DBUG_PRINT("info", ("spider direct_aggregate=%s",
+      result_list->direct_aggregate ? "TRUE" : "FALSE"));
+    result_list->snap_mrr_with_cnt = spider->mrr_with_cnt;
+    result_list->snap_direct_aggregate = result_list->direct_aggregate;
+    result_list->snap_row = row;
+#endif
+
+    /* for mrr */
+    if (spider->mrr_with_cnt)
+    {
+      DBUG_PRINT("info", ("spider mrr_with_cnt"));
+      if (spider->sql_kind[spider->result_link_idx] == SPIDER_SQL_KIND_SQL)
+      {
+        if (!row->is_null())
+          spider->multi_range_hit_point = row->val_int();
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+        else if (result_list->direct_aggregate)
+        {
+          table->status = STATUS_NOT_FOUND;
+          DBUG_RETURN(HA_ERR_END_OF_FILE);
+        }
+#endif
+        else
+          DBUG_RETURN(ER_SPIDER_UNKNOWN_NUM);
+        row->next();
+      } else {
+        spider->multi_range_hit_point = 0;
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+        result_list->snap_mrr_with_cnt = FALSE;
+#endif
+      }
+    }
+
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+    /* for direct_aggregate */
+    if (result_list->direct_aggregate)
+    {
+      if ((error_num = spider_db_fetch_for_item_sum_funcs(row, spider)))
+        DBUG_RETURN(error_num);
+    }
+#endif
+
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+    if (!spider->use_fields)
+    {
+#endif
+      if ((error_num = spider_db_append_match_fetch(spider,
+        spider->ft_first, spider->ft_current, row)))
+        DBUG_RETURN(error_num);
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+    }
+#endif
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  } else {
+    if (!(row = result_list->hs_result->fetch_row_from_result_buffer(
+      result_list->hs_result_buf)))
+    {
+      table->status = STATUS_NOT_FOUND;
+      DBUG_RETURN(HA_ERR_END_OF_FILE);
+    }
+  }
+#endif
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (spider->conn_kind[spider->result_link_idx] == SPIDER_CONN_KIND_MYSQL)
+  {
+#endif
+    for (
+      field = table->field;
+      *field;
+      field++
+    ) {
+      if ((
+        bitmap_is_set(table->read_set, (*field)->field_index) |
+        bitmap_is_set(table->write_set, (*field)->field_index)
+      )) {
+#ifndef DBUG_OFF
+        MY_BITMAP *tmp_map =
+          dbug_tmp_use_all_columns(table, &table->write_set);
+#endif
+        DBUG_PRINT("info", ("spider bitmap is set %s",
+          SPIDER_field_name_str(*field)));
+        if ((error_num =
+          spider_db_fetch_row(share, *field, row, ptr_diff)))
+          DBUG_RETURN(error_num);
+#ifndef DBUG_OFF
+        dbug_tmp_restore_column_map(&table->write_set, tmp_map);
+#endif
+      } else {
+        DBUG_PRINT("info", ("spider bitmap is not set %s",
+          SPIDER_field_name_str(*field)));
+      }
+      row->next();
+    }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  } else {
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+    if (spider->hs_pushed_ret_fields_num == MAX_FIELDS)
+    {
+#endif
+      spider_db_handler *dbton_hdl = spider->dbton_handler[row->dbton_id];
+      for (
+        field = table->field;
+        *field;
+        field++
+      ) {
+        if (dbton_hdl->minimum_select_bit_is_set((*field)->field_index))
+        {
+#ifndef DBUG_OFF
+          my_bitmap_map *tmp_map =
+            dbug_tmp_use_all_columns(table, table->write_set);
+#endif
+          if ((error_num = spider_db_fetch_row(share, *field, row, ptr_diff)))
+            DBUG_RETURN(error_num);
+#ifndef DBUG_OFF
+          dbug_tmp_restore_column_map(table->write_set, tmp_map);
+#endif
+          row->next();
+        }
+      }
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+    } else {
+      uint32 *field_idxs = spider->hs_pushed_ret_fields;
+      size_t field_idxs_num = spider->hs_pushed_ret_fields_num;
+      Field *tf;
+      int roop_count;
+      if (spider->hs_pushed_lcl_fields_num !=
+        result_list->hs_result->num_fields())
+      {
+        DBUG_PRINT("info", ("spider different field_num %zu %u",
+          spider->hs_pushed_lcl_fields_num,
+          result_list->hs_result->num_fields()));
+        DBUG_RETURN(ER_SPIDER_UNKNOWN_NUM);
+      }
+      for (roop_count = 0; roop_count < (int) field_idxs_num;
+        roop_count++)
+      {
+        tf = spider->get_top_table_field(field_idxs[roop_count]);
+        if ((tf = spider->field_exchange(tf)))
+        {
+#ifndef DBUG_OFF
+          my_bitmap_map *tmp_map =
+            dbug_tmp_use_all_columns(table, table->write_set);
+#endif
+          if ((error_num = spider_db_fetch_row(share, tf, row, ptr_diff)))
+            DBUG_RETURN(error_num);
+#ifndef DBUG_OFF
+          dbug_tmp_restore_column_map(table->write_set, tmp_map);
+#endif
+          row->next();
+        }
+      }
+    }
+#endif
+  }
+#endif
+  table->status = 0;
+  DBUG_RETURN(0);
+}
+
+int spider_db_fetch_key(
+  ha_spider *spider,
+  uchar *buf,
+  TABLE *table,
+  const KEY *key_info,
+  SPIDER_RESULT_LIST *result_list
+) {
+  int error_num;
+  SPIDER_SHARE *share = spider->share;
+  my_ptrdiff_t ptr_diff = PTR_BYTE_DIFF(buf, table->record[0]);
+  SPIDER_RESULT *current = (SPIDER_RESULT*) result_list->current;
+  KEY_PART_INFO *key_part;
+  uint part_num;
+  SPIDER_DB_ROW *row;
+  Field *field;
+  DBUG_ENTER("spider_db_fetch_key");
+  if (result_list->quick_mode == 0)
+  {
+    SPIDER_DB_RESULT *result = current->result;
+    if (!(row = result->fetch_row()))
+    {
+      table->status = STATUS_NOT_FOUND;
+      DBUG_RETURN(HA_ERR_END_OF_FILE);
+    }
+  } else {
+    if (result_list->current_row_num < result_list->quick_page_size)
+    {
+      if (!current->first_position)
+      {
+        table->status = STATUS_NOT_FOUND;
+        DBUG_RETURN(HA_ERR_END_OF_FILE);
+      }
+      row = current->first_position[result_list->current_row_num].row;
+    } else {
+      if ((error_num = spider_db_get_row_from_tmp_tbl(
+        current, &row)))
+      {
+        if (error_num == HA_ERR_END_OF_FILE)
+          table->status = STATUS_NOT_FOUND;
+        DBUG_RETURN(error_num);
+      }
+    }
+  }
+
+  DBUG_PRINT("info", ("spider row=%p", row));
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  DBUG_PRINT("info", ("spider direct_aggregate=%s",
+    result_list->direct_aggregate ? "TRUE" : "FALSE"));
+  result_list->snap_mrr_with_cnt = spider->mrr_with_cnt;
+  result_list->snap_direct_aggregate = result_list->direct_aggregate;
+  result_list->snap_row = row;
+#endif
+
+  /* for mrr */
+  if (spider->mrr_with_cnt)
+  {
+    DBUG_PRINT("info", ("spider mrr_with_cnt"));
+    if (!row->is_null())
+      spider->multi_range_hit_point = row->val_int();
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+    else if (result_list->direct_aggregate)
+    {
+      table->status = STATUS_NOT_FOUND;
+      DBUG_RETURN(HA_ERR_END_OF_FILE);
+    }
+#endif
+    else
+      DBUG_RETURN(ER_SPIDER_UNKNOWN_NUM);
+    row->next();
+  }
+
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  /* for direct_aggregate */
+  if (result_list->direct_aggregate)
+  {
+    if ((error_num = spider_db_fetch_for_item_sum_funcs(row, spider)))
+      DBUG_RETURN(error_num);
+  }
+#endif
+
+  if ((error_num = spider_db_append_match_fetch(spider,
+    spider->ft_first, spider->ft_current, row)))
+    DBUG_RETURN(error_num);
+
+  for (
+    key_part = key_info->key_part,
+    part_num = 0;
+    part_num < spider_user_defined_key_parts(key_info);
+    key_part++,
+    part_num++
+  ) {
+    field = key_part->field;
+    if ((
+      bitmap_is_set(table->read_set, field->field_index) |
+      bitmap_is_set(table->write_set, field->field_index)
+    )) {
+#ifndef DBUG_OFF
+      MY_BITMAP *tmp_map =
+        dbug_tmp_use_all_columns(table, &table->write_set);
+#endif
+      DBUG_PRINT("info", ("spider bitmap is set %s",
+        SPIDER_field_name_str(field)));
+      if ((error_num =
+        spider_db_fetch_row(share, field, row, ptr_diff)))
+        DBUG_RETURN(error_num);
+#ifndef DBUG_OFF
+      dbug_tmp_restore_column_map(&table->write_set, tmp_map);
+#endif
+    }
+    row->next();
+  }
+  table->status = 0;
+  DBUG_RETURN(0);
+}
+
+int spider_db_fetch_minimum_columns(
+  ha_spider *spider,
+  uchar *buf,
+  TABLE *table,
+  SPIDER_RESULT_LIST *result_list
+) {
+  int error_num;
+  my_ptrdiff_t ptr_diff = PTR_BYTE_DIFF(buf, table->record[0]);
+  SPIDER_SHARE *share = spider->share;
+  SPIDER_RESULT *current = (SPIDER_RESULT*) result_list->current;
+  SPIDER_DB_ROW *row;
+  Field **field;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("spider_db_fetch_minimum_columns");
+  if (result_list->quick_mode == 0)
+  {
+    SPIDER_DB_RESULT *result = current->result;
+    if (!(row = result->fetch_row()))
+    {
+      table->status = STATUS_NOT_FOUND;
+      DBUG_RETURN(HA_ERR_END_OF_FILE);
+    }
+  } else {
+    if (result_list->current_row_num < result_list->quick_page_size)
+    {
+      DBUG_PRINT("info", ("spider current=%p", current));
+      DBUG_PRINT("info", ("spider first_position=%p", current->first_position));
+      if (!current->first_position)
+      {
+        table->status = STATUS_NOT_FOUND;
+        DBUG_RETURN(HA_ERR_END_OF_FILE);
+      }
+      DBUG_PRINT("info", ("spider current_row_num=%lld", result_list->current_row_num));
+      DBUG_PRINT("info", ("spider first_position[]=%p", &current->first_position[result_list->current_row_num]));
+      row = current->first_position[result_list->current_row_num].row;
+    } else {
+      if ((error_num = spider_db_get_row_from_tmp_tbl(
+        current, &row)))
+      {
+        if (error_num == HA_ERR_END_OF_FILE)
+          table->status = STATUS_NOT_FOUND;
+        DBUG_RETURN(error_num);
+      }
+    }
+  }
+
+  DBUG_PRINT("info", ("spider row=%p", row));
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  DBUG_PRINT("info", ("spider direct_aggregate=%s",
+    result_list->direct_aggregate ? "TRUE" : "FALSE"));
+  result_list->snap_mrr_with_cnt = spider->mrr_with_cnt;
+  result_list->snap_direct_aggregate = result_list->direct_aggregate;
+  result_list->snap_row = row;
+#endif
+
+  /* for mrr */
+  if (spider->mrr_with_cnt)
+  {
+    DBUG_PRINT("info", ("spider mrr_with_cnt"));
+    if (!row->is_null())
+      spider->multi_range_hit_point = row->val_int();
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+    else if (result_list->direct_aggregate)
+    {
+      table->status = STATUS_NOT_FOUND;
+      DBUG_RETURN(HA_ERR_END_OF_FILE);
+    }
+#endif
+    else
+      DBUG_RETURN(ER_SPIDER_UNKNOWN_NUM);
+    row->next();
+  }
+
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  /* for direct_aggregate */
+  if (result_list->direct_aggregate)
+  {
+    if ((error_num = spider_db_fetch_for_item_sum_funcs(row, spider)))
+      DBUG_RETURN(error_num);
+  }
+#endif
+
+  if ((error_num = spider_db_append_match_fetch(spider,
+    spider->ft_first, spider->ft_current, row)))
+    DBUG_RETURN(error_num);
+
+  dbton_hdl = spider->dbton_handler[row->dbton_id];
+  for (
+    field = table->field;
+    *field;
+    field++
+  ) {
+    DBUG_PRINT("info", ("spider field_index %u", (*field)->field_index));
+    DBUG_PRINT("info", ("spider searched_bitmap %u",
+      spider_bit_is_set(spider->wide_handler->searched_bitmap,
+      (*field)->field_index)));
+    DBUG_PRINT("info", ("spider read_set %u",
+      bitmap_is_set(table->read_set, (*field)->field_index)));
+    DBUG_PRINT("info", ("spider write_set %u",
+      bitmap_is_set(table->write_set, (*field)->field_index)));
+    if (dbton_hdl->minimum_select_bit_is_set((*field)->field_index))
+    {
+      if ((
+        bitmap_is_set(table->read_set, (*field)->field_index) |
+        bitmap_is_set(table->write_set, (*field)->field_index)
+      )) {
+#ifndef DBUG_OFF
+        MY_BITMAP *tmp_map =
+          dbug_tmp_use_all_columns(table, &table->write_set);
+#endif
+        DBUG_PRINT("info", ("spider bitmap is set %s",
+          SPIDER_field_name_str(*field)));
+        if ((error_num = spider_db_fetch_row(share, *field, row, ptr_diff)))
+          DBUG_RETURN(error_num);
+#ifndef DBUG_OFF
+        dbug_tmp_restore_column_map(&table->write_set, tmp_map);
+#endif
+      }
+      row->next();
+    }
+  }
+  table->status = 0;
+  DBUG_RETURN(0);
+}
+
+void spider_db_free_one_result_for_start_next(
+  ha_spider *spider
+) {
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  SPIDER_RESULT *result = (SPIDER_RESULT *) result_list->current;
+  DBUG_ENTER("spider_db_free_one_result_for_start_next");
+  spider_bg_all_conn_break(spider);
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (spider->conn_kind[spider->result_link_idx] == SPIDER_CONN_KIND_MYSQL)
+  {
+#endif
+    if (result_list->low_mem_read)
+    {
+      if (result)
+      {
+        do {
+          spider_db_free_one_result(result_list, result);
+          DBUG_PRINT("info",("spider result=%p", result));
+          DBUG_PRINT("info",("spider result->finish_flg = FALSE"));
+          result->finish_flg = FALSE;
+          result = (SPIDER_RESULT *) result->next;
+        } while (result && (result->result || result->first_position));
+        result = (SPIDER_RESULT *) result_list->current;
+        if (
+          !result->result &&
+          !result->first_position &&
+          !result->tmp_tbl_use_position
+        )
+          result_list->current = result->prev;
+      }
+    } else {
+      while (
+        result && result->next &&
+        (result->next->result || result->next->first_position)
+      ) {
+        result_list->current = result->next;
+        result = (SPIDER_RESULT *) result->next;
+      }
+    }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  } else {
+    if (result_list->hs_has_result)
+    {
+      if (result_list->hs_result)
+      {
+        result_list->hs_result->free_result();
+        delete result_list->hs_result;
+        result_list->hs_result = NULL;
+      }
+      if (result_list->hs_result_buf)
+      {
+        result_list->hs_result_buf->clear();
+      }
+      result_list->hs_has_result = FALSE;
+    }
+  }
+#endif
+  DBUG_VOID_RETURN;
+}
+
+void spider_db_free_one_result(
+  SPIDER_RESULT_LIST *result_list,
+  SPIDER_RESULT *result
+) {
+  DBUG_ENTER("spider_db_free_one_result");
+  if (result_list->quick_mode == 0)
+  {
+    if (
+      !result->use_position &&
+      result->result
+    ) {
+      result->result->free_result();
+      delete result->result;
+      result->result = NULL;
+    }
+  } else {
+    int roop_count;
+    SPIDER_POSITION *position = result->first_position;
+    if (position)
+    {
+      for (roop_count = 0; roop_count < result->pos_page_size; roop_count++)
+      {
+        if (
+          position[roop_count].row &&
+          !position[roop_count].use_position
+        ) {
+          delete position[roop_count].row;
+          position[roop_count].row = NULL;
+        }
+      }
+      if (result_list->quick_mode == 3)
+      {
+        if (!result->first_pos_use_position)
+        {
+          spider_free(spider_current_trx, position, MYF(0));
+          result->first_position = NULL;
+        }
+        if (result->result)
+        {
+          result->result->free_result();
+          if (!result->tmp_tbl_use_position)
+          {
+            delete result->result;
+            result->result = NULL;
+          }
+        }
+        if (!result->tmp_tbl_use_position)
+        {
+          if (result->result_tmp_tbl)
+          {
+            if (result->result_tmp_tbl_inited)
+            {
+              result->result_tmp_tbl->file->ha_rnd_end();
+              result->result_tmp_tbl_inited = 0;
+            }
+            spider_rm_sys_tmp_table_for_result(result->result_tmp_tbl_thd,
+              result->result_tmp_tbl, &result->result_tmp_tbl_prm);
+            result->result_tmp_tbl = NULL;
+            result->result_tmp_tbl_thd = NULL;
+          }
+        }
+      }
+    }
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_db_free_one_quick_result(
+  SPIDER_RESULT *result
+) {
+  DBUG_ENTER("spider_db_free_one_quick_result");
+  if (result && result->result)
+  {
+    result->result->free_result();
+    if (!result->result_tmp_tbl)
+    {
+      delete result->result;
+      result->result = NULL;
+    }
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_db_free_result(
+  ha_spider *spider,
+  bool final
+) {
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  SPIDER_RESULT *result;
+  SPIDER_RESULT *prev;
+  SPIDER_SHARE *share = spider->share;
+  SPIDER_TRX *trx = spider->wide_handler->trx;
+  SPIDER_POSITION *position;
+  int roop_count, error_num;
+  DBUG_ENTER("spider_db_free_result");
+  spider_bg_all_conn_break(spider);
+  result = (SPIDER_RESULT*) result_list->first;
+
+  while (result_list->tmp_pos_row_first)
+  {
+    SPIDER_DB_ROW *tmp_pos_row = result_list->tmp_pos_row_first;
+    result_list->tmp_pos_row_first = tmp_pos_row->next_pos;
+    delete tmp_pos_row;
+  }
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (result_list->hs_has_result)
+  {
+    if (result_list->hs_result)
+    {
+      result_list->hs_result->free_result();
+      delete result_list->hs_result;
+      result_list->hs_result = NULL;
+    }
+    if (result_list->hs_result_buf)
+    {
+      if (result_list->hs_result_buf->check_size(
+        spider_param_hs_result_free_size(trx->thd, share->hs_result_free_size))
+      ) {
+        trx->hs_result_free_count++;
+      }
+      result_list->hs_result_buf->clear();
+    }
+    result_list->hs_has_result = FALSE;
+  }
+#endif
+
+  if (
+    final ||
+    spider_param_reset_sql_alloc(trx->thd, share->reset_sql_alloc) == 1
+  ) {
+    int alloc_size = final ? 0 :
+      (spider_param_init_sql_alloc_size(trx->thd, share->init_sql_alloc_size));
+    while (result)
+    {
+      position = result->first_position;
+      if (position)
+      {
+        for (roop_count = 0; roop_count < result->pos_page_size; roop_count++)
+        {
+          if (position[roop_count].row)
+          {
+            delete position[roop_count].row;
+          }
+        }
+        spider_free(spider_current_trx, position, MYF(0));
+      }
+      if (result->result)
+      {
+        result->result->free_result();
+        delete result->result;
+        result->result = NULL;
+      }
+      if (result->result_tmp_tbl)
+      {
+        if (result->result_tmp_tbl_inited)
+        {
+          result->result_tmp_tbl->file->ha_rnd_end();
+          result->result_tmp_tbl_inited = 0;
+        }
+        spider_rm_sys_tmp_table_for_result(result->result_tmp_tbl_thd,
+          result->result_tmp_tbl, &result->result_tmp_tbl_prm);
+        result->result_tmp_tbl = NULL;
+        result->result_tmp_tbl_thd = NULL;
+      }
+      prev = result;
+      result = (SPIDER_RESULT*) result->next;
+      spider_free(spider_current_trx, prev, MYF(0));
+    }
+    result_list->first = NULL;
+    result_list->last = NULL;
+    if (!final)
+    {
+      ulong realloced = 0;
+      int init_sql_alloc_size =
+        spider_param_init_sql_alloc_size(trx->thd, share->init_sql_alloc_size);
+      for (roop_count = 0; roop_count < (int) share->use_dbton_count;
+        roop_count++)
+      {
+        uint dbton_id = share->use_dbton_ids[roop_count];
+        if ((error_num = spider->dbton_handler[dbton_id]->
+          realloc_sql(&realloced)))
+        {
+          DBUG_RETURN(error_num);
+        }
+      }
+      if (realloced & (SPIDER_SQL_TYPE_SELECT_SQL | SPIDER_SQL_TYPE_HANDLER))
+      {
+        for (roop_count = 0; roop_count < (int) share->link_count;
+          roop_count++)
+        {
+          if ((int) result_list->sqls[roop_count].alloced_length() >
+            alloc_size * 2)
+          {
+            result_list->sqls[roop_count].free();
+            if (result_list->sqls[roop_count].real_alloc(
+              init_sql_alloc_size))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          }
+        }
+      }
+      if (realloced & SPIDER_SQL_TYPE_INSERT_SQL)
+      {
+        for (roop_count = 0; roop_count < (int) share->link_count;
+          roop_count++)
+        {
+          if ((int) result_list->insert_sqls[roop_count].alloced_length() >
+            alloc_size * 2)
+          {
+            result_list->insert_sqls[roop_count].free();
+            if (result_list->insert_sqls[roop_count].real_alloc(
+              init_sql_alloc_size))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          }
+        }
+      }
+      if (realloced & SPIDER_SQL_TYPE_UPDATE_SQL)
+      {
+        for (roop_count = 0; roop_count < (int) share->link_count;
+          roop_count++)
+        {
+          if ((int) result_list->update_sqls[roop_count].alloced_length() >
+            alloc_size * 2)
+          {
+            result_list->update_sqls[roop_count].free();
+            if (result_list->update_sqls[roop_count].real_alloc(
+              init_sql_alloc_size))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          }
+        }
+      }
+      if ((error_num = spider->reset_sql_sql(SPIDER_SQL_TYPE_BULK_UPDATE_SQL)))
+        DBUG_RETURN(error_num);
+
+      if (realloced & SPIDER_SQL_TYPE_TMP_SQL)
+      {
+        for (roop_count = 0; roop_count < (int) share->link_count;
+          roop_count++)
+        {
+          if ((int) result_list->tmp_sqls[roop_count].alloced_length() >
+            alloc_size * 2)
+          {
+            result_list->tmp_sqls[roop_count].free();
+            if (result_list->tmp_sqls[roop_count].real_alloc(
+              init_sql_alloc_size))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          }
+        }
+      }
+    }
+  } else {
+    while (result)
+    {
+      position = result->first_position;
+      if (position)
+      {
+        for (roop_count = 0; roop_count < result->pos_page_size; roop_count++)
+        {
+          if (position[roop_count].row)
+          {
+            delete position[roop_count].row;
+          }
+        }
+        spider_free(spider_current_trx, position, MYF(0));
+      }
+      result->first_position = NULL;
+      if (result->result)
+      {
+        result->result->free_result();
+        delete result->result;
+        result->result = NULL;
+      }
+      if (result->result_tmp_tbl)
+      {
+        if (result->result_tmp_tbl_inited)
+        {
+          result->result_tmp_tbl->file->ha_rnd_end();
+          result->result_tmp_tbl_inited = 0;
+        }
+        spider_rm_sys_tmp_table_for_result(result->result_tmp_tbl_thd,
+          result->result_tmp_tbl, &result->result_tmp_tbl_prm);
+        result->result_tmp_tbl = NULL;
+        result->result_tmp_tbl_thd = NULL;
+      }
+      result->record_num = 0;
+      DBUG_PRINT("info",("spider result->finish_flg = FALSE"));
+      result->finish_flg = FALSE;
+      result->first_pos_use_position = FALSE;
+      result->tmp_tbl_use_position = FALSE;
+      result->use_position = FALSE;
+      result = (SPIDER_RESULT*) result->next;
+    }
+  }
+  result_list->current = NULL;
+  result_list->record_num = 0;
+  DBUG_PRINT("info",("spider result_list->finish_flg = FALSE"));
+  result_list->finish_flg = FALSE;
+  result_list->quick_phase = 0;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  result_list->bgs_phase = 0;
+#endif
+  DBUG_RETURN(0);
+}
+
+int spider_db_store_result(
+  ha_spider *spider,
+  int link_idx,
+  TABLE *table
+) {
+  int error_num;
+  SPIDER_CONN *conn;
+  SPIDER_DB_CONN *db_conn;
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  SPIDER_RESULT *current;
+  DBUG_ENTER("spider_db_store_result");
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (spider->conn_kind[link_idx] == SPIDER_CONN_KIND_MYSQL)
+  {
+#endif
+    conn = spider->conns[link_idx];
+    DBUG_PRINT("info",("spider conn->connection_id=%llu",
+      conn->connection_id));
+    DBUG_PRINT("info",("spider spider->connection_ids[%d]=%llu",
+      link_idx, spider->connection_ids[link_idx]));
+    if (conn->connection_id != spider->connection_ids[link_idx])
+    {
+      my_message(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM,
+        ER_SPIDER_REMOTE_SERVER_GONE_AWAY_STR, MYF(0));
+      if (!conn->mta_conn_mutex_unlock_later)
+      {
+        DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+      }
+      DBUG_RETURN(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM);
+    }
+    db_conn = conn->db_conn;
+    if (!result_list->current)
+    {
+      if (!result_list->first)
+      {
+        if (!(result_list->first = (SPIDER_RESULT *)
+          spider_malloc(spider_current_trx, 4, sizeof(*result_list->first),
+            MYF(MY_WME | MY_ZEROFILL)))
+        ) {
+          if (!conn->mta_conn_mutex_unlock_later)
+          {
+            DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+            SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+            pthread_mutex_unlock(&conn->mta_conn_mutex);
+          }
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        TMP_TABLE_PARAM *tmp_tbl_prm = (TMP_TABLE_PARAM *)
+          &result_list->first->result_tmp_tbl_prm;
+        tmp_tbl_prm->init();
+        tmp_tbl_prm->field_count = 3;
+        result_list->last = result_list->first;
+        result_list->current = result_list->first;
+      } else {
+        result_list->current = result_list->first;
+      }
+      result_list->bgs_current = result_list->current;
+      current = (SPIDER_RESULT*) result_list->current;
+    } else {
+      if (
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+        result_list->bgs_phase > 0 ||
+#endif
+        result_list->quick_phase > 0
+      ) {
+        if (result_list->bgs_current == result_list->last)
+        {
+          if (!(result_list->last = (SPIDER_RESULT *)
+            spider_malloc(spider_current_trx, 5, sizeof(*result_list->last),
+               MYF(MY_WME | MY_ZEROFILL)))
+          ) {
+            if (!conn->mta_conn_mutex_unlock_later)
+            {
+              DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+              SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+              pthread_mutex_unlock(&conn->mta_conn_mutex);
+            }
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          }
+          TMP_TABLE_PARAM *tmp_tbl_prm = (TMP_TABLE_PARAM *)
+            &result_list->last->result_tmp_tbl_prm;
+          tmp_tbl_prm->init();
+          tmp_tbl_prm->field_count = 3;
+          result_list->bgs_current->next = result_list->last;
+          result_list->last->prev = result_list->bgs_current;
+          result_list->bgs_current = result_list->last;
+        } else {
+          result_list->bgs_current = result_list->bgs_current->next;
+        }
+        if (
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+          result_list->bgs_phase == 1 ||
+#endif
+          result_list->quick_phase == 2
+        ) {
+          if (result_list->low_mem_read &&
+            result_list->current->result->limit_mode() == 0)
+          {
+            do {
+              spider_db_free_one_result(result_list,
+                (SPIDER_RESULT*) result_list->current);
+              result_list->current = result_list->current->next;
+            } while (result_list->current != result_list->bgs_current);
+          } else {
+            result_list->current = result_list->bgs_current;
+          }
+          result_list->quick_phase = 0;
+        }
+        current = (SPIDER_RESULT*) result_list->bgs_current;
+      } else {
+        if (result_list->current == result_list->last)
+        {
+          if (!(result_list->last = (SPIDER_RESULT *)
+            spider_malloc(spider_current_trx, 6, sizeof(*result_list->last),
+              MYF(MY_WME | MY_ZEROFILL)))
+          ) {
+            if (!conn->mta_conn_mutex_unlock_later)
+            {
+              DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+              SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+              pthread_mutex_unlock(&conn->mta_conn_mutex);
+            }
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          }
+          TMP_TABLE_PARAM *tmp_tbl_prm = (TMP_TABLE_PARAM *)
+            &result_list->last->result_tmp_tbl_prm;
+          tmp_tbl_prm->init();
+          tmp_tbl_prm->field_count = 3;
+          result_list->current->next = result_list->last;
+          result_list->last->prev = result_list->current;
+          result_list->current = result_list->last;
+        } else {
+          result_list->current = result_list->current->next;
+        }
+        result_list->bgs_current = result_list->current;
+        current = (SPIDER_RESULT*) result_list->current;
+      }
+    }
+
+    if (result_list->quick_mode == 0)
+    {
+      if (spider_bit_is_set(spider->db_request_phase, link_idx))
+      {
+        spider_clear_bit(spider->db_request_phase, link_idx);
+      }
+      st_spider_db_request_key request_key;
+      request_key.spider_thread_id =
+        spider->wide_handler->trx->spider_thread_id;
+      request_key.query_id = spider->wide_handler->trx->thd->query_id;
+      request_key.handler = spider;
+      request_key.request_id = spider->db_request_id[link_idx];
+      request_key.next = NULL;
+      if (!(current->result = db_conn->store_result(NULL, &request_key,
+        &error_num)))
+      {
+        if (error_num && error_num != HA_ERR_END_OF_FILE)
+        {
+          if (!conn->mta_conn_mutex_unlock_later)
+          {
+            DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+            SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+            pthread_mutex_unlock(&conn->mta_conn_mutex);
+          }
+          DBUG_RETURN(error_num);
+        }
+        bool call_db_errorno = FALSE;
+        if (error_num != HA_ERR_END_OF_FILE)
+        {
+          call_db_errorno = TRUE;
+          if ((error_num = spider_db_errorno(conn)))
+            DBUG_RETURN(error_num);
+        }
+        DBUG_PRINT("info",("spider set finish_flg point 1"));
+        DBUG_PRINT("info",("spider current->finish_flg = TRUE"));
+        DBUG_PRINT("info",("spider result_list->finish_flg = TRUE"));
+        current->finish_flg = TRUE;
+        result_list->finish_flg = TRUE;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+        if (result_list->bgs_phase <= 1)
+        {
+#endif
+          result_list->current_row_num = 0;
+          table->status = STATUS_NOT_FOUND;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+        }
+#endif
+        if (!conn->mta_conn_mutex_unlock_later && !call_db_errorno)
+        {
+          DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+        }
+        DBUG_RETURN(HA_ERR_END_OF_FILE);
+      } else {
+        if (!conn->mta_conn_mutex_unlock_later)
+        {
+          DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+        }
+        current->record_num = current->result->num_rows();
+        current->dbton_id = current->result->dbton_id;
+        result_list->record_num += current->record_num;
+        DBUG_PRINT("info",("spider current->record_num=%lld",
+          current->record_num));
+        DBUG_PRINT("info",("spider result_list->record_num=%lld",
+          result_list->record_num));
+        DBUG_PRINT("info",("spider result_list->internal_limit=%lld",
+          result_list->internal_limit));
+        DBUG_PRINT("info",("spider result_list->split_read=%lld",
+          result_list->split_read));
+        if (
+          result_list->internal_limit <= result_list->record_num ||
+          result_list->split_read > current->record_num
+        ) {
+          DBUG_PRINT("info",("spider set finish_flg point 2"));
+          DBUG_PRINT("info",("spider current->finish_flg = TRUE"));
+          DBUG_PRINT("info",("spider result_list->finish_flg = TRUE"));
+          current->finish_flg = TRUE;
+          result_list->finish_flg = TRUE;
+        }
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+        if (result_list->bgs_phase <= 1)
+        {
+#endif
+          result_list->current_row_num = 0;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+        }
+#endif
+      }
+    } else {
+      /* has_result() for case of result with result_tmp_tbl */
+      if (current->prev && current->prev->result &&
+        current->prev->result->has_result())
+      {
+        current->result = current->prev->result;
+        current->prev->result = NULL;
+        result_list->limit_num -= current->prev->record_num;
+        if (!conn->mta_conn_mutex_unlock_later)
+        {
+          DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+        }
+      } else {
+        if (spider_bit_is_set(spider->db_request_phase, link_idx))
+        {
+          spider_clear_bit(spider->db_request_phase, link_idx);
+        }
+        st_spider_db_request_key request_key;
+        request_key.spider_thread_id =
+          spider->wide_handler->trx->spider_thread_id;
+        request_key.query_id = spider->wide_handler->trx->thd->query_id;
+        request_key.handler = spider;
+        request_key.request_id = spider->db_request_id[link_idx];
+        request_key.next = NULL;
+        if (!(current->result = conn->db_conn->use_result(spider, &request_key,
+          &error_num)))
+        {
+          if (!error_num)
+          {
+            error_num = spider_db_errorno(conn);
+          } else {
+            if (!conn->mta_conn_mutex_unlock_later)
+            {
+              DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+              SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+              pthread_mutex_unlock(&conn->mta_conn_mutex);
+            }
+          }
+          DBUG_RETURN(error_num);
+        }
+        DBUG_PRINT("info", ("spider conn[%p]->quick_target=%p", conn, spider));
+        conn->quick_target = spider;
+        spider->quick_targets[link_idx] = spider;
+        if (!conn->mta_conn_mutex_unlock_later)
+        {
+          DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+        }
+      }
+      current->dbton_id = current->result->dbton_id;
+      SPIDER_DB_ROW *row;
+      if (!(row = current->result->fetch_row()))
+      {
+        error_num = current->result->get_errno();
+        DBUG_PRINT("info",("spider set finish_flg point 3"));
+        DBUG_PRINT("info",("spider current->finish_flg = TRUE"));
+        DBUG_PRINT("info",("spider result_list->finish_flg = TRUE"));
+        current->finish_flg = TRUE;
+        result_list->finish_flg = TRUE;
+        current->result->free_result();
+        delete current->result;
+        current->result = NULL;
+        DBUG_PRINT("info", ("spider conn[%p]->quick_target=NULL", conn));
+        conn->quick_target = NULL;
+        spider->quick_targets[link_idx] = NULL;
+        if (
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+          result_list->bgs_phase <= 1 &&
+#endif
+          result_list->quick_phase == 0
+        ) {
+          result_list->current_row_num = 0;
+          table->status = STATUS_NOT_FOUND;
+        }
+        if (error_num)
+          DBUG_RETURN(error_num);
+        else if (result_list->quick_phase > 0)
+          DBUG_RETURN(0);
+        DBUG_RETURN(HA_ERR_END_OF_FILE);
+      }
+      SPIDER_DB_ROW *tmp_row;
+      uint field_count = current->result->num_fields();
+      SPIDER_POSITION *position;
+      longlong page_size;
+      int roop_count = 0;
+      if (!result_list->quick_page_size)
+      {
+        if (result_list->quick_mode == 3)
+        {
+          page_size = 0;
+        } else {
+          result_list->quick_page_size = result_list->limit_num;
+          page_size = result_list->limit_num;
+        }
+      } else {
+        page_size =
+          result_list->limit_num < result_list->quick_page_size ?
+          result_list->limit_num : result_list->quick_page_size;
+      }
+      current->field_count = field_count;
+      if (!(position = (SPIDER_POSITION *)
+        spider_bulk_malloc(spider_current_trx, 7, MYF(MY_WME | MY_ZEROFILL),
+          &position, (uint) (sizeof(SPIDER_POSITION) * page_size),
+          &tmp_row, (uint) (sizeof(SPIDER_DB_ROW) * field_count),
+          NullS))
+      )
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      current->pos_page_size = (int) page_size;
+      current->first_position = position;
+      current->tmp_tbl_row = tmp_row;
+      if (result_list->quick_mode == 3)
+      {
+        while (page_size > roop_count && row)
+        {
+          if (result_list->quick_page_byte < row->get_byte_size())
+          {
+            current->pos_page_size = roop_count;
+            page_size = roop_count;
+            result_list->quick_page_size = roop_count;
+            result_list->quick_page_byte = 0;
+            break;
+          } else {
+            result_list->quick_page_byte -= row->get_byte_size();
+          }
+          if (!(position->row = row->clone()))
+          {
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          }
+          position++;
+          roop_count++;
+          row = current->result->fetch_row();
+        }
+      } else {
+        do {
+          if (!(position->row = row->clone()))
+          {
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          }
+          position++;
+          roop_count++;
+          if (result_list->quick_page_byte < row->get_byte_size())
+          {
+            current->pos_page_size = roop_count;
+            page_size = roop_count;
+            result_list->quick_page_size = roop_count;
+            result_list->quick_page_byte = 0;
+            break;
+          } else {
+            result_list->quick_page_byte -= row->get_byte_size();
+          }
+        } while (
+          page_size > roop_count &&
+          (row = current->result->fetch_row())
+        );
+      }
+      if (
+        result_list->quick_mode == 3 &&
+        page_size == roop_count &&
+        result_list->limit_num > roop_count &&
+        row
+      ) {
+        THD *thd = current_thd;
+        char buf[MAX_FIELD_WIDTH];
+        spider_string tmp_str(buf, MAX_FIELD_WIDTH, &my_charset_bin);
+        tmp_str.init_calc_mem(120);
+
+        DBUG_PRINT("info",("spider store result to temporary table"));
+        DBUG_ASSERT(!current->result_tmp_tbl);
+#ifdef SPIDER_use_LEX_CSTRING_for_Field_blob_constructor
+        LEX_CSTRING field_name1 = {STRING_WITH_LEN("a")};
+        LEX_CSTRING field_name2 = {STRING_WITH_LEN("b")};
+        LEX_CSTRING field_name3 = {STRING_WITH_LEN("c")};
+        if (!(current->result_tmp_tbl = spider_mk_sys_tmp_table_for_result(
+          thd, table, &current->result_tmp_tbl_prm, &field_name1, &field_name2,
+          &field_name3, &my_charset_bin)))
+#else
+        if (!(current->result_tmp_tbl = spider_mk_sys_tmp_table_for_result(
+          thd, table, &current->result_tmp_tbl_prm, "a", "b", "c",
+          &my_charset_bin)))
+#endif
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        current->result_tmp_tbl_thd = thd;
+        TABLE *tmp_tbl = current->result_tmp_tbl;
+        tmp_tbl->file->extra(HA_EXTRA_WRITE_CACHE);
+        tmp_tbl->file->ha_start_bulk_insert((ha_rows) 0);
+        do {
+          if ((error_num = row->store_to_tmp_table(tmp_tbl, &tmp_str)))
+          {
+            tmp_tbl->file->ha_end_bulk_insert();
+            DBUG_RETURN(error_num);
+          }
+          roop_count++;
+        } while (
+          result_list->limit_num > roop_count &&
+          (row = current->result->fetch_row())
+        );
+        tmp_tbl->file->ha_end_bulk_insert();
+        page_size = result_list->limit_num;
+      }
+      current->record_num = roop_count;
+      result_list->record_num += roop_count;
+      if (
+        result_list->internal_limit <= result_list->record_num ||
+        page_size > roop_count ||
+        (
+          result_list->quick_mode == 3 &&
+          result_list->limit_num > roop_count
+        )
+      ) {
+        DBUG_PRINT("info",("spider set finish_flg point 4"));
+        DBUG_PRINT("info",("spider current->finish_flg = TRUE"));
+        DBUG_PRINT("info",("spider result_list->finish_flg = TRUE"));
+        current->finish_flg = TRUE;
+        result_list->finish_flg = TRUE;
+        current->result->free_result();
+        if (!current->result_tmp_tbl)
+        {
+          delete current->result;
+          current->result = NULL;
+        }
+        DBUG_PRINT("info", ("spider conn[%p]->quick_target=NULL", conn));
+        conn->quick_target = NULL;
+        spider->quick_targets[link_idx] = NULL;
+      } else if (
+        result_list->quick_mode == 3 ||
+        result_list->limit_num == roop_count
+      ) {
+        if (
+          result_list->limit_num != roop_count ||
+          conn->db_conn->limit_mode() != 1
+        ) {
+          current->result->free_result();
+          if (!current->result_tmp_tbl)
+          {
+            delete current->result;
+            current->result = NULL;
+          }
+          DBUG_PRINT("info", ("spider conn[%p]->quick_target=NULL", conn));
+          conn->quick_target = NULL;
+          spider->quick_targets[link_idx] = NULL;
+        }
+      }
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+      DBUG_PRINT("info", ("spider bgs_phase=%d", result_list->bgs_phase));
+#endif
+      DBUG_PRINT("info", ("spider quick_phase=%d", result_list->quick_phase));
+      if (
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+        result_list->bgs_phase <= 1 &&
+#endif
+        result_list->quick_phase == 0
+      ) {
+        result_list->current_row_num = 0;
+      }
+      DBUG_PRINT("info", ("spider result_list->current=%p", result_list->current));
+      DBUG_PRINT("info", ("spider current=%p", current));
+      DBUG_PRINT("info", ("spider first_position=%p", current->first_position));
+      DBUG_PRINT("info", ("spider current_row_num=%lld", result_list->current_row_num));
+      DBUG_PRINT("info", ("spider first_position[]=%p", &current->first_position[result_list->current_row_num]));
+      DBUG_PRINT("info", ("spider row=%p", current->first_position[result_list->current_row_num].row));
+    }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  } else {
+    if (spider->conn_kind[link_idx] == SPIDER_CONN_KIND_HS_READ)
+      conn = spider->hs_r_conns[link_idx];
+    else
+      conn = spider->hs_w_conns[link_idx];
+    DBUG_PRINT("info",("spider conn=%p", conn));
+    DBUG_PRINT("info",("spider conn->connection_id=%llu",
+      conn->connection_id));
+    DBUG_PRINT("info",("spider spider->connection_ids[%d]=%llu",
+      link_idx, spider->connection_ids[link_idx]));
+    if (conn->connection_id != spider->connection_ids[link_idx])
+    {
+      my_message(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM,
+        ER_SPIDER_REMOTE_SERVER_GONE_AWAY_STR, MYF(0));
+      if (!conn->mta_conn_mutex_unlock_later)
+      {
+        DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+      }
+      DBUG_RETURN(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM);
+    }
+    if (spider_bit_is_set(spider->db_request_phase, link_idx))
+    {
+      spider_clear_bit(spider->db_request_phase, link_idx);
+    }
+    st_spider_db_request_key request_key;
+    request_key.spider_thread_id = spider->wide_handler->trx->spider_thread_id;
+    request_key.query_id = spider->wide_handler->trx->thd->query_id;
+    request_key.handler = spider;
+    request_key.request_id = spider->db_request_id[link_idx];
+    request_key.next = NULL;
+    if (!(result_list->hs_result = conn->db_conn->store_result(
+      &result_list->hs_result_buf, &request_key, &error_num)))
+    {
+      if (!error_num)
+      {
+        spider_db_errorno(conn);
+        DBUG_RETURN(ER_SPIDER_HS_NUM);
+      } else {
+        if (!conn->mta_conn_mutex_unlock_later)
+        {
+          DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+        }
+      }
+      DBUG_RETURN(error_num);
+    }
+    result_list->hs_conn = conn->db_conn;
+    result_list->hs_has_result = TRUE;
+    if (!conn->mta_conn_mutex_unlock_later)
+    {
+      DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+    }
+  }
+#endif
+  DBUG_RETURN(0);
+}
+
+int spider_db_store_result_for_reuse_cursor(
+  ha_spider *spider,
+  int link_idx,
+  TABLE *table
+) {
+  int error_num;
+  SPIDER_CONN *conn;
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  SPIDER_RESULT *current;
+  DBUG_ENTER("spider_db_store_result_for_reuse_cursor");
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  DBUG_ASSERT(spider->conn_kind[link_idx] == SPIDER_CONN_KIND_MYSQL);
+#endif
+  conn = spider->conns[link_idx];
+  DBUG_PRINT("info",("spider conn->connection_id=%llu",
+    conn->connection_id));
+  DBUG_PRINT("info",("spider spider->connection_ids[%d]=%llu",
+    link_idx, spider->connection_ids[link_idx]));
+  if (conn->connection_id != spider->connection_ids[link_idx])
+  {
+    my_message(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM,
+      ER_SPIDER_REMOTE_SERVER_GONE_AWAY_STR, MYF(0));
+    DBUG_RETURN(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM);
+  }
+  if (!result_list->current)
+  {
+    if (!result_list->first)
+    {
+      if (!(result_list->first = (SPIDER_RESULT *)
+        spider_malloc(spider_current_trx, 4, sizeof(*result_list->first),
+          MYF(MY_WME | MY_ZEROFILL)))
+      ) {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+      TMP_TABLE_PARAM *tmp_tbl_prm = (TMP_TABLE_PARAM *)
+        &result_list->first->result_tmp_tbl_prm;
+      tmp_tbl_prm->init();
+      tmp_tbl_prm->field_count = 3;
+      result_list->last = result_list->first;
+      result_list->current = result_list->first;
+    } else {
+      result_list->current = result_list->first;
+    }
+    result_list->bgs_current = result_list->current;
+    current = (SPIDER_RESULT*) result_list->current;
+  } else {
+    if (
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+      result_list->bgs_phase > 0 ||
+#endif
+      result_list->quick_phase > 0
+    ) {
+      if (result_list->bgs_current == result_list->last)
+      {
+        if (!(result_list->last = (SPIDER_RESULT *)
+          spider_malloc(spider_current_trx, 5, sizeof(*result_list->last),
+             MYF(MY_WME | MY_ZEROFILL)))
+        ) {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        TMP_TABLE_PARAM *tmp_tbl_prm = (TMP_TABLE_PARAM *)
+          &result_list->last->result_tmp_tbl_prm;
+        tmp_tbl_prm->init();
+        tmp_tbl_prm->field_count = 3;
+        result_list->bgs_current->next = result_list->last;
+        result_list->last->prev = result_list->bgs_current;
+        result_list->bgs_current = result_list->last;
+      } else {
+        result_list->bgs_current = result_list->bgs_current->next;
+      }
+      if (
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+        result_list->bgs_phase == 1 ||
+#endif
+        result_list->quick_phase == 2
+      ) {
+        result_list->current = result_list->bgs_current;
+        result_list->quick_phase = 0;
+      }
+      current = (SPIDER_RESULT*) result_list->bgs_current;
+    } else {
+      if (result_list->current == result_list->last)
+      {
+        if (!(result_list->last = (SPIDER_RESULT *)
+          spider_malloc(spider_current_trx, 6, sizeof(*result_list->last),
+            MYF(MY_WME | MY_ZEROFILL)))
+        ) {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        TMP_TABLE_PARAM *tmp_tbl_prm = (TMP_TABLE_PARAM *)
+          &result_list->last->result_tmp_tbl_prm;
+        tmp_tbl_prm->init();
+        tmp_tbl_prm->field_count = 3;
+        result_list->current->next = result_list->last;
+        result_list->last->prev = result_list->current;
+        result_list->current = result_list->last;
+      } else {
+        result_list->current = result_list->current->next;
+      }
+      result_list->bgs_current = result_list->current;
+      current = (SPIDER_RESULT*) result_list->current;
+    }
+  }
+
+  if (result_list->quick_mode == 0)
+  {
+    if (spider_bit_is_set(spider->db_request_phase, link_idx))
+    {
+      spider_clear_bit(spider->db_request_phase, link_idx);
+    }
+    current->result = current->prev->result;
+    current->result->set_limit(result_list->limit_num);
+    current->record_num = current->result->num_rows();
+    current->dbton_id = current->result->dbton_id;
+    result_list->record_num += current->record_num;
+    DBUG_PRINT("info",("spider current->record_num=%lld",
+      current->record_num));
+    DBUG_PRINT("info",("spider result_list->record_num=%lld",
+      result_list->record_num));
+    DBUG_PRINT("info",("spider result_list->internal_limit=%lld",
+      result_list->internal_limit));
+    DBUG_PRINT("info",("spider result_list->split_read=%lld",
+      result_list->split_read));
+    if (
+      result_list->internal_limit <= result_list->record_num ||
+      result_list->split_read > current->record_num
+    ) {
+      DBUG_PRINT("info",("spider set finish_flg point 2"));
+      DBUG_PRINT("info",("spider current->finish_flg = TRUE"));
+      DBUG_PRINT("info",("spider result_list->finish_flg = TRUE"));
+      current->finish_flg = TRUE;
+      result_list->finish_flg = TRUE;
+    }
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+    if (result_list->bgs_phase <= 1)
+    {
+#endif
+      result_list->current_row_num = 0;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+    }
+#endif
+  } else {
+    DBUG_ASSERT(current->prev);
+    DBUG_ASSERT(current->prev->result);
+    /* has_result() for case of result with result_tmp_tbl */
+    if (current->prev->result->has_result())
+    {
+      current->result = current->prev->result;
+      current->result->set_limit(result_list->limit_num);
+      current->prev->result = NULL;
+      result_list->limit_num -= current->prev->record_num;
+    } else {
+      if (spider_bit_is_set(spider->db_request_phase, link_idx))
+      {
+        spider_clear_bit(spider->db_request_phase, link_idx);
+      }
+      current->result = current->prev->result;
+      current->result->set_limit(result_list->limit_num);
+      DBUG_PRINT("info", ("spider conn[%p]->quick_target=%p", conn, spider));
+      conn->quick_target = spider;
+      spider->quick_targets[link_idx] = spider;
+    }
+    current->dbton_id = current->result->dbton_id;
+    SPIDER_DB_ROW *row;
+    if (!(row = current->result->fetch_row()))
+    {
+      error_num = current->result->get_errno();
+      DBUG_PRINT("info",("spider set finish_flg point 3"));
+      DBUG_PRINT("info",("spider current->finish_flg = TRUE"));
+      DBUG_PRINT("info",("spider result_list->finish_flg = TRUE"));
+      current->finish_flg = TRUE;
+      result_list->finish_flg = TRUE;
+      current->result->free_result();
+      delete current->result;
+      current->result = NULL;
+      DBUG_PRINT("info", ("spider conn[%p]->quick_target=NULL", conn));
+      conn->quick_target = NULL;
+      spider->quick_targets[link_idx] = NULL;
+      if (
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+        result_list->bgs_phase <= 1 &&
+#endif
+        result_list->quick_phase == 0
+      ) {
+        result_list->current_row_num = 0;
+        table->status = STATUS_NOT_FOUND;
+      }
+      if (error_num && error_num != HA_ERR_END_OF_FILE)
+        DBUG_RETURN(error_num);
+      /* This shouldn't return HA_ERR_END_OF_FILE */
+      DBUG_RETURN(0);
+    }
+    SPIDER_DB_ROW *tmp_row;
+    uint field_count = current->result->num_fields();
+    SPIDER_POSITION *position;
+    longlong page_size;
+    int roop_count = 0;
+    if (!result_list->quick_page_size)
+    {
+      if (result_list->quick_mode == 3)
+      {
+        page_size = 0;
+      } else {
+        result_list->quick_page_size = result_list->limit_num;
+        page_size = result_list->limit_num;
+      }
+    } else {
+      page_size =
+        result_list->limit_num < result_list->quick_page_size ?
+        result_list->limit_num : result_list->quick_page_size;
+    }
+    current->field_count = field_count;
+    if (!(position = (SPIDER_POSITION *)
+      spider_bulk_malloc(spider_current_trx, 7, MYF(MY_WME | MY_ZEROFILL),
+        &position, (uint) (sizeof(SPIDER_POSITION) * page_size),
+        &tmp_row, (uint) (sizeof(SPIDER_DB_ROW) * field_count),
+        NullS))
+    )
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    current->pos_page_size = (int) page_size;
+    current->first_position = position;
+    current->tmp_tbl_row = tmp_row;
+    if (result_list->quick_mode == 3)
+    {
+      while (page_size > roop_count && row)
+      {
+        if (result_list->quick_page_byte < row->get_byte_size())
+        {
+          current->pos_page_size = roop_count;
+          page_size = roop_count;
+          result_list->quick_page_size = roop_count;
+          result_list->quick_page_byte = 0;
+          break;
+        } else {
+          result_list->quick_page_byte -= row->get_byte_size();
+        }
+        if (!(position->row = row->clone()))
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        position++;
+        roop_count++;
+        row = current->result->fetch_row();
+      }
+    } else {
+      do {
+        if (!(position->row = row->clone()))
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        position++;
+        roop_count++;
+        if (result_list->quick_page_byte < row->get_byte_size())
+        {
+          current->pos_page_size = roop_count;
+          page_size = roop_count;
+          result_list->quick_page_size = roop_count;
+          result_list->quick_page_byte = 0;
+          break;
+        } else {
+          result_list->quick_page_byte -= row->get_byte_size();
+        }
+      } while (
+        page_size > roop_count &&
+        (row = current->result->fetch_row())
+      );
+    }
+    if (
+      result_list->quick_mode == 3 &&
+      page_size == roop_count &&
+      result_list->limit_num > roop_count &&
+      row
+    ) {
+      THD *thd = current_thd;
+      char buf[MAX_FIELD_WIDTH];
+      spider_string tmp_str(buf, MAX_FIELD_WIDTH, &my_charset_bin);
+      tmp_str.init_calc_mem(120);
+
+      DBUG_PRINT("info",("spider store result to temporary table"));
+      DBUG_ASSERT(!current->result_tmp_tbl);
+#ifdef SPIDER_use_LEX_CSTRING_for_Field_blob_constructor
+      LEX_CSTRING field_name1 = {STRING_WITH_LEN("a")};
+      LEX_CSTRING field_name2 = {STRING_WITH_LEN("b")};
+      LEX_CSTRING field_name3 = {STRING_WITH_LEN("c")};
+      if (!(current->result_tmp_tbl = spider_mk_sys_tmp_table_for_result(
+        thd, table, &current->result_tmp_tbl_prm, &field_name1, &field_name2,
+        &field_name3, &my_charset_bin)))
+#else
+      if (!(current->result_tmp_tbl = spider_mk_sys_tmp_table_for_result(
+        thd, table, &current->result_tmp_tbl_prm, "a", "b", "c",
+        &my_charset_bin)))
+#endif
+      {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+      current->result_tmp_tbl_thd = thd;
+      TABLE *tmp_tbl = current->result_tmp_tbl;
+      tmp_tbl->file->extra(HA_EXTRA_WRITE_CACHE);
+      tmp_tbl->file->ha_start_bulk_insert((ha_rows) 0);
+      do {
+        if ((error_num = row->store_to_tmp_table(tmp_tbl, &tmp_str)))
+        {
+          tmp_tbl->file->ha_end_bulk_insert();
+          DBUG_RETURN(error_num);
+        }
+        roop_count++;
+      } while (
+        result_list->limit_num > roop_count &&
+        (row = current->result->fetch_row())
+      );
+      tmp_tbl->file->ha_end_bulk_insert();
+      page_size = result_list->limit_num;
+    }
+    current->record_num = roop_count;
+    result_list->record_num += roop_count;
+    if (
+      result_list->internal_limit <= result_list->record_num ||
+      page_size > roop_count ||
+      (
+        result_list->quick_mode == 3 &&
+        result_list->limit_num > roop_count
+      )
+    ) {
+      DBUG_PRINT("info",("spider set finish_flg point 4"));
+      DBUG_PRINT("info",("spider current->finish_flg = TRUE"));
+      DBUG_PRINT("info",("spider result_list->finish_flg = TRUE"));
+      current->finish_flg = TRUE;
+      result_list->finish_flg = TRUE;
+      current->result->free_result();
+      if (!current->result_tmp_tbl)
+      {
+        delete current->result;
+        current->result = NULL;
+      }
+      DBUG_PRINT("info", ("spider conn[%p]->quick_target=NULL", conn));
+      conn->quick_target = NULL;
+      spider->quick_targets[link_idx] = NULL;
+    } else if (
+      result_list->quick_mode == 3 ||
+      result_list->limit_num == roop_count
+    ) {
+      if (result_list->limit_num != roop_count)
+      {
+        current->result->free_result();
+        if (!current->result_tmp_tbl)
+        {
+          delete current->result;
+          current->result = NULL;
+        }
+        DBUG_PRINT("info", ("spider conn[%p]->quick_target=NULL", conn));
+        conn->quick_target = NULL;
+        spider->quick_targets[link_idx] = NULL;
+      }
+    }
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+    DBUG_PRINT("info", ("spider bgs_phase=%d", result_list->bgs_phase));
+#endif
+    DBUG_PRINT("info", ("spider quick_phase=%d", result_list->quick_phase));
+    if (
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+      result_list->bgs_phase <= 1 &&
+#endif
+      result_list->quick_phase == 0
+    ) {
+      result_list->current_row_num = 0;
+    }
+    DBUG_PRINT("info", ("spider result_list->current=%p", result_list->current));
+    DBUG_PRINT("info", ("spider current=%p", current));
+    DBUG_PRINT("info", ("spider first_position=%p", current->first_position));
+    DBUG_PRINT("info", ("spider current_row_num=%lld", result_list->current_row_num));
+    DBUG_PRINT("info", ("spider first_position[]=%p", &current->first_position[result_list->current_row_num]));
+    DBUG_PRINT("info", ("spider row=%p", current->first_position[result_list->current_row_num].row));
+  }
+  DBUG_RETURN(0);
+}
+
+void spider_db_discard_result(
+  ha_spider *spider,
+  int link_idx,
+  SPIDER_CONN *conn
+) {
+  int error_num;
+  SPIDER_DB_RESULT *result;
+  DBUG_ENTER("spider_db_discard_result");
+  if (spider_bit_is_set(spider->db_request_phase, link_idx))
+  {
+    spider_clear_bit(spider->db_request_phase, link_idx);
+  }
+  st_spider_db_request_key request_key;
+  request_key.spider_thread_id = spider->wide_handler->trx->spider_thread_id;
+  request_key.query_id = spider->wide_handler->trx->thd->query_id;
+  request_key.handler = spider;
+  request_key.request_id = spider->db_request_id[link_idx];
+  request_key.next = NULL;
+  if ((result = conn->db_conn->use_result(spider, &request_key, &error_num)))
+  {
+    result->free_result();
+    delete result;
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_db_discard_multiple_result(
+  ha_spider *spider,
+  int link_idx,
+  SPIDER_CONN *conn
+) {
+  int error_num;
+  SPIDER_DB_RESULT *result;
+  st_spider_db_request_key request_key;
+  DBUG_ENTER("spider_db_discard_multiple_result");
+  if (spider_bit_is_set(spider->db_request_phase, link_idx))
+  {
+    spider_clear_bit(spider->db_request_phase, link_idx);
+  }
+  request_key.spider_thread_id = spider->wide_handler->trx->spider_thread_id;
+  request_key.query_id = spider->wide_handler->trx->thd->query_id;
+  request_key.handler = spider;
+  request_key.request_id = spider->db_request_id[link_idx];
+  request_key.next = NULL;
+  do
+  {
+    if (!conn->db_conn->cmp_request_key_to_snd(&request_key))
+      break;
+    if ((result = conn->db_conn->use_result(spider, &request_key, &error_num)))
+    {
+      result->free_result();
+      delete result;
+    }
+  } while (!conn->db_conn->next_result());
+  DBUG_VOID_RETURN;
+}
+
+#ifdef HA_CAN_BULK_ACCESS
+int spider_db_bulk_store_result(
+  ha_spider *spider,
+  SPIDER_CONN *conn,
+  int link_idx,
+  bool discard_result
+) {
+  int error_num, tmp_error_num;
+  DBUG_ENTER("spider_db_bulk_store_result");
+  DBUG_PRINT("info",("spider spider=%p", spider));
+  DBUG_PRINT("info",("spider conn=%p", conn));
+  DBUG_PRINT("info",("spider link_idx=%d", link_idx));
+  if (conn->conn_kind == SPIDER_CONN_KIND_MYSQL)
+  {
+    /* already stored */
+    DBUG_RETURN(0);
+  }
+  error_num = spider_db_bulk_open_handler(spider, conn, link_idx);
+  if (!discard_result)
+  {
+    pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+    DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_unlock_later = TRUE;
+    if ((tmp_error_num = spider_db_store_result(spider, link_idx,
+      spider->get_table())))
+    {
+      error_num = tmp_error_num;
+    }
+    conn->mta_conn_mutex_unlock_later = FALSE;
+  } else {
+    if (spider->connection_ids[link_idx] == conn->connection_id)
+      spider_db_discard_result(spider, link_idx, conn);
+  }
+  DBUG_RETURN(error_num);
+}
+#endif
+
+int spider_db_fetch(
+  uchar *buf,
+  ha_spider *spider,
+  TABLE *table
+) {
+  int error_num;
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  DBUG_ENTER("spider_db_fetch");
+  if (spider->sql_kind[spider->result_link_idx] == SPIDER_SQL_KIND_SQL)
+  {
+    if (!spider->select_column_mode) {
+      if (result_list->keyread)
+        error_num = spider_db_fetch_key(spider, buf, table,
+          result_list->key_info, result_list);
+      else
+        error_num = spider_db_fetch_table(spider, buf, table,
+          result_list);
+    } else
+      error_num = spider_db_fetch_minimum_columns(spider, buf, table,
+        result_list);
+  } else {
+    error_num = spider_db_fetch_table(spider, buf, table,
+      result_list);
+  }
+  result_list->current_row_num++;
+  DBUG_PRINT("info",("spider error_num=%d", error_num));
+  spider->pushed_pos = NULL;
+  DBUG_RETURN(error_num);
+}
+
+int spider_db_seek_prev(
+  uchar *buf,
+  ha_spider *spider,
+  TABLE *table
+) {
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  DBUG_ENTER("spider_db_seek_prev");
+  if (result_list->current_row_num <= 1)
+  {
+    if (result_list->current == result_list->first)
+    {
+      table->status = STATUS_NOT_FOUND;
+      DBUG_RETURN(HA_ERR_END_OF_FILE);
+    }
+    if (result_list->low_mem_read == 1)
+    {
+      my_message(ER_SPIDER_LOW_MEM_READ_PREV_NUM,
+        ER_SPIDER_LOW_MEM_READ_PREV_STR, MYF(0));
+      DBUG_RETURN(ER_SPIDER_LOW_MEM_READ_PREV_NUM);
+    }
+    result_list->current = result_list->current->prev;
+    result_list->current_row_num = result_list->current->record_num - 1;
+  } else {
+    result_list->current_row_num -= 2;
+  }
+  if (result_list->quick_mode == 0)
+    result_list->current->result->move_to_pos(result_list->current_row_num);
+  DBUG_RETURN(spider_db_fetch(buf, spider, table));
+}
+
+int spider_db_seek_next(
+  uchar *buf,
+  ha_spider *spider,
+  int link_idx,
+  TABLE *table
+) {
+  int error_num;
+  SPIDER_SHARE *share = spider->share;
+  SPIDER_CONN *conn = spider->conns[link_idx];
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  DBUG_ENTER("spider_db_seek_next");
+  if (
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    spider->conn_kind[spider->result_link_idx] == SPIDER_CONN_KIND_MYSQL &&
+#endif
+    result_list->current_row_num >= result_list->current->record_num
+  ) {
+    DBUG_PRINT("info",("spider result_list->current_row_num=%lld",
+      result_list->current_row_num));
+    DBUG_PRINT("info",("spider result_list->current->record_num=%lld",
+      result_list->current->record_num));
+    if (result_list->low_mem_read)
+      spider_db_free_one_result(result_list,
+        (SPIDER_RESULT*) result_list->current);
+
+    int roop_start = 0, roop_end = 1, roop_count, lock_mode, link_ok = 0;
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+    if (!spider->use_fields)
+    {
+#endif
+      lock_mode = spider_conn_lock_mode(spider);
+      if (lock_mode)
+      {
+        /* "for update" or "lock in share mode" */
+        link_ok = spider_conn_link_idx_next(share->link_statuses,
+          spider->conn_link_idx, -1, share->link_count,
+          SPIDER_LINK_STATUS_OK);
+        roop_start = spider_conn_link_idx_next(share->link_statuses,
+          spider->conn_link_idx, -1, share->link_count,
+          SPIDER_LINK_STATUS_RECOVERY);
+        roop_end = spider->share->link_count;
+      } else {
+        link_ok = link_idx;
+        roop_start = link_idx;
+        roop_end = link_idx + 1;
+      }
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+    }
+#endif
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+    if (result_list->bgs_phase > 0)
+    {
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+      if (spider->use_fields)
+      {
+        SPIDER_LINK_IDX_CHAIN *link_idx_chain;
+        SPIDER_LINK_IDX_HOLDER *link_idx_holder;
+        spider_fields *fields = spider->fields;
+        fields->set_pos_to_first_link_idx_chain();
+        while ((link_idx_chain = fields->get_next_link_idx_chain()))
+        {
+          conn = link_idx_chain->conn;
+          link_idx_holder = link_idx_chain->link_idx_holder;
+          spider_db_handler *dbton_hdl =
+            spider->dbton_handler[conn->dbton_id];
+          spider->link_idx_chain = link_idx_chain;
+          if ((error_num = spider_bg_conn_search(spider,
+            link_idx_holder->link_idx, dbton_hdl->first_link_idx,
+            FALSE, FALSE,
+            !fields->is_first_link_ok_chain(link_idx_chain))))
+          {
+            DBUG_PRINT("info",("spider error_num 1=%d", error_num));
+            DBUG_RETURN(error_num);
+          }
+        }
+      } else {
+#endif
+        for (roop_count = roop_start; roop_count < roop_end;
+          roop_count = spider_conn_link_idx_next(share->link_statuses,
+            spider->conn_link_idx, roop_count, share->link_count,
+            SPIDER_LINK_STATUS_RECOVERY)
+        ) {
+          if ((error_num = spider_bg_conn_search(spider, roop_count, roop_start,
+            FALSE, FALSE, (roop_count != link_ok))))
+          {
+            DBUG_PRINT("info",("spider error_num 1=%d", error_num));
+            DBUG_RETURN(error_num);
+          }
+        }
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+      }
+#endif
+    } else {
+#endif
+      if (result_list->current == result_list->bgs_current)
+      {
+        if (result_list->finish_flg)
+        {
+          table->status = STATUS_NOT_FOUND;
+          DBUG_PRINT("info",("spider error_num 2=%d", HA_ERR_END_OF_FILE));
+          DBUG_RETURN(HA_ERR_END_OF_FILE);
+        }
+        spider_next_split_read_param(spider);
+        if (
+          result_list->quick_mode == 0 ||
+          result_list->quick_mode == 3 ||
+          !result_list->current->result
+        ) {
+          result_list->limit_num =
+            result_list->internal_limit - result_list->record_num >=
+            result_list->split_read ?
+            result_list->split_read :
+            result_list->internal_limit - result_list->record_num;
+          if (spider->sql_kinds & SPIDER_SQL_KIND_SQL)
+          {
+            if ((error_num = spider->reappend_limit_sql_part(
+              result_list->record_num, result_list->limit_num,
+              SPIDER_SQL_TYPE_SELECT_SQL)))
+            {
+              DBUG_PRINT("info",("spider error_num 3=%d", error_num));
+              DBUG_RETURN(error_num);
+            }
+            if (
+              !result_list->use_union &&
+              (error_num = spider->append_select_lock_sql_part(
+                SPIDER_SQL_TYPE_SELECT_SQL))
+            ) {
+              DBUG_PRINT("info",("spider error_num 4=%d", error_num));
+              DBUG_RETURN(error_num);
+            }
+          }
+          if (spider->sql_kinds & SPIDER_SQL_KIND_HANDLER)
+          {
+            spider_db_append_handler_next(spider);
+            if ((error_num = spider->reappend_limit_sql_part(
+              0, result_list->limit_num,
+              SPIDER_SQL_TYPE_HANDLER)))
+            {
+              DBUG_PRINT("info",("spider error_num 5=%d", error_num));
+              DBUG_RETURN(error_num);
+            }
+          }
+
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+          if (spider->use_fields)
+          {
+            SPIDER_LINK_IDX_CHAIN *link_idx_chain;
+            SPIDER_LINK_IDX_HOLDER *link_idx_holder;
+            spider_fields *fields = spider->fields;
+            fields->set_pos_to_first_link_idx_chain();
+            while ((link_idx_chain = fields->get_next_link_idx_chain()))
+            {
+              ulong sql_type;
+              conn = link_idx_chain->conn;
+              sql_type = SPIDER_SQL_TYPE_SELECT_SQL;
+              link_idx_holder = link_idx_chain->link_idx_holder;
+              link_idx = link_idx_holder->link_idx;
+              spider_db_handler *dbton_handler =
+                spider->dbton_handler[conn->dbton_id];
+              pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+              if (dbton_handler->need_lock_before_set_sql_for_exec(sql_type))
+              {
+                pthread_mutex_lock(&conn->mta_conn_mutex);
+                SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+              }
+              if ((error_num = dbton_handler->set_sql_for_exec(sql_type,
+                link_idx)))
+              {
+                if (dbton_handler->need_lock_before_set_sql_for_exec(sql_type))
+                {
+                  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+                  pthread_mutex_unlock(&conn->mta_conn_mutex);
+                }
+                DBUG_PRINT("info",("spider error_num 6=%d", error_num));
+                DBUG_RETURN(error_num);
+              }
+              if (!dbton_handler->need_lock_before_set_sql_for_exec(sql_type))
+              {
+                pthread_mutex_lock(&conn->mta_conn_mutex);
+                SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+              }
+              if (conn->db_conn->limit_mode() == 1)
+              {
+                conn->db_conn->set_limit(result_list->limit_num);
+                if (fields->is_first_link_ok_chain(link_idx_chain))
+                {
+                  if ((error_num = spider_db_store_result_for_reuse_cursor(
+                    spider, link_idx, table)))
+                  {
+                    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+                    pthread_mutex_unlock(&conn->bg_conn_mutex);
+                    DBUG_RETURN(error_num);
+                  }
+                }
+                SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+                pthread_mutex_unlock(&conn->bg_conn_mutex);
+              } else {
+                conn->need_mon = &spider->need_mons[link_idx];
+                DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+                DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+                conn->mta_conn_mutex_lock_already = TRUE;
+                conn->mta_conn_mutex_unlock_later = TRUE;
+                if ((error_num = spider_db_set_names(spider, conn, link_idx)))
+                {
+                  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+                  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+                  conn->mta_conn_mutex_lock_already = FALSE;
+                  conn->mta_conn_mutex_unlock_later = FALSE;
+                  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+                  pthread_mutex_unlock(&conn->mta_conn_mutex);
+                  if (
+                    spider->need_mons[link_idx]
+                  ) {
+                    error_num = fields->ping_table_mon_from_table(link_idx_chain);
+                  }
+                  DBUG_PRINT("info",("spider error_num 7a=%d", error_num));
+                  DBUG_RETURN(error_num);
+                }
+                spider_conn_set_timeout_from_share(conn, link_idx,
+                  spider->wide_handler->trx->thd, share);
+                if (dbton_handler->execute_sql(
+                  sql_type,
+                  conn,
+                  result_list->quick_mode,
+                  &spider->need_mons[link_idx])
+                ) {
+                  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+                  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+                  conn->mta_conn_mutex_lock_already = FALSE;
+                  conn->mta_conn_mutex_unlock_later = FALSE;
+                  error_num = spider_db_errorno(conn);
+                  if (
+                    spider->need_mons[link_idx]
+                  ) {
+                    error_num = fields->ping_table_mon_from_table(link_idx_chain);
+                  }
+                  DBUG_PRINT("info",("spider error_num 8a=%d", error_num));
+                  DBUG_RETURN(error_num);
+                }
+                spider->connection_ids[link_idx] = conn->connection_id;
+                DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+                DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+                conn->mta_conn_mutex_lock_already = FALSE;
+                conn->mta_conn_mutex_unlock_later = FALSE;
+                if (fields->is_first_link_ok_chain(link_idx_chain))
+                {
+                  if ((error_num = spider_db_store_result(spider, link_idx,
+                    table)))
+                  {
+                    if (
+                      error_num != HA_ERR_END_OF_FILE &&
+                      spider->need_mons[link_idx]
+                    ) {
+                      error_num =
+                        fields->ping_table_mon_from_table(link_idx_chain);
+                    }
+                    DBUG_PRINT("info",("spider error_num 9a=%d", error_num));
+                    DBUG_RETURN(error_num);
+                  }
+                  spider->result_link_idx = link_ok;
+                } else {
+                  spider_db_discard_result(spider, link_idx, conn);
+                  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+                  pthread_mutex_unlock(&conn->mta_conn_mutex);
+                }
+              }
+            }
+          } else {
+#endif
+            for (roop_count = roop_start; roop_count < roop_end;
+              roop_count = spider_conn_link_idx_next(share->link_statuses,
+                spider->conn_link_idx, roop_count, share->link_count,
+                SPIDER_LINK_STATUS_RECOVERY)
+            ) {
+              ulong sql_type;
+              conn = spider->conns[roop_count];
+              if (spider->sql_kind[roop_count] == SPIDER_SQL_KIND_SQL)
+              {
+                sql_type = SPIDER_SQL_TYPE_SELECT_SQL;
+              } else {
+                sql_type = SPIDER_SQL_TYPE_HANDLER;
+              }
+              spider_db_handler *dbton_handler =
+                spider->dbton_handler[conn->dbton_id];
+              pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+              if (dbton_handler->need_lock_before_set_sql_for_exec(sql_type))
+              {
+                pthread_mutex_lock(&conn->mta_conn_mutex);
+                SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+              }
+              if ((error_num = dbton_handler->set_sql_for_exec(sql_type,
+                roop_count)))
+              {
+                if (dbton_handler->need_lock_before_set_sql_for_exec(sql_type))
+                {
+                  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+                  pthread_mutex_unlock(&conn->mta_conn_mutex);
+                }
+                DBUG_PRINT("info",("spider error_num 6=%d", error_num));
+                DBUG_RETURN(error_num);
+              }
+              if (!dbton_handler->need_lock_before_set_sql_for_exec(sql_type))
+              {
+                pthread_mutex_lock(&conn->mta_conn_mutex);
+                SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+              }
+              if (conn->db_conn->limit_mode() == 1)
+              {
+                conn->db_conn->set_limit(result_list->limit_num);
+                if (roop_count == link_ok)
+                {
+                  if ((error_num = spider_db_store_result_for_reuse_cursor(
+                    spider, link_idx, table)))
+                  {
+                    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+                    pthread_mutex_unlock(&conn->bg_conn_mutex);
+                    DBUG_RETURN(error_num);
+                  }
+                }
+                SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+                pthread_mutex_unlock(&conn->bg_conn_mutex);
+              } else {
+                conn->need_mon = &spider->need_mons[roop_count];
+                DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+                DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+                conn->mta_conn_mutex_lock_already = TRUE;
+                conn->mta_conn_mutex_unlock_later = TRUE;
+                if ((error_num = spider_db_set_names(spider, conn, roop_count)))
+                {
+                  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+                  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+                  conn->mta_conn_mutex_lock_already = FALSE;
+                  conn->mta_conn_mutex_unlock_later = FALSE;
+                  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+                  pthread_mutex_unlock(&conn->mta_conn_mutex);
+                  if (
+                    share->monitoring_kind[roop_count] &&
+                    spider->need_mons[roop_count]
+                  ) {
+                    error_num = spider_ping_table_mon_from_table(
+                        spider->wide_handler->trx,
+                        spider->wide_handler->trx->thd,
+                        share,
+                        roop_count,
+                        (uint32) share->monitoring_sid[roop_count],
+                        share->table_name,
+                        share->table_name_length,
+                        spider->conn_link_idx[roop_count],
+                        NULL,
+                        0,
+                        share->monitoring_kind[roop_count],
+                        share->monitoring_limit[roop_count],
+                        share->monitoring_flag[roop_count],
+                        TRUE
+                      );
+                  }
+                  DBUG_PRINT("info",("spider error_num 7=%d", error_num));
+                  DBUG_RETURN(error_num);
+                }
+                spider_conn_set_timeout_from_share(conn, roop_count,
+                  spider->wide_handler->trx->thd, share);
+                if (dbton_handler->execute_sql(
+                  sql_type,
+                  conn,
+                  result_list->quick_mode,
+                  &spider->need_mons[roop_count])
+                ) {
+                  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+                  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+                  conn->mta_conn_mutex_lock_already = FALSE;
+                  conn->mta_conn_mutex_unlock_later = FALSE;
+                  error_num = spider_db_errorno(conn);
+                  if (
+                    share->monitoring_kind[roop_count] &&
+                    spider->need_mons[roop_count]
+                  ) {
+                    error_num = spider_ping_table_mon_from_table(
+                        spider->wide_handler->trx,
+                        spider->wide_handler->trx->thd,
+                        share,
+                        roop_count,
+                        (uint32) share->monitoring_sid[roop_count],
+                        share->table_name,
+                        share->table_name_length,
+                        spider->conn_link_idx[roop_count],
+                        NULL,
+                        0,
+                        share->monitoring_kind[roop_count],
+                        share->monitoring_limit[roop_count],
+                        share->monitoring_flag[roop_count],
+                        TRUE
+                      );
+                  }
+                  DBUG_PRINT("info",("spider error_num 8=%d", error_num));
+                  DBUG_RETURN(error_num);
+                }
+                spider->connection_ids[roop_count] = conn->connection_id;
+                DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+                DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+                conn->mta_conn_mutex_lock_already = FALSE;
+                conn->mta_conn_mutex_unlock_later = FALSE;
+                if (roop_count == link_ok)
+                {
+                  if ((error_num = spider_db_store_result(spider, roop_count,
+                    table)))
+                  {
+                    if (
+                      error_num != HA_ERR_END_OF_FILE &&
+                      share->monitoring_kind[roop_count] &&
+                      spider->need_mons[roop_count]
+                    ) {
+                      error_num = spider_ping_table_mon_from_table(
+                          spider->wide_handler->trx,
+                          spider->wide_handler->trx->thd,
+                          share,
+                          roop_count,
+                          (uint32) share->monitoring_sid[roop_count],
+                          share->table_name,
+                          share->table_name_length,
+                          spider->conn_link_idx[roop_count],
+                          NULL,
+                          0,
+                          share->monitoring_kind[roop_count],
+                          share->monitoring_limit[roop_count],
+                          share->monitoring_flag[roop_count],
+                          TRUE
+                        );
+                    }
+                    DBUG_PRINT("info",("spider error_num 9=%d", error_num));
+                    DBUG_RETURN(error_num);
+                  }
+                  spider->result_link_idx = link_ok;
+                } else {
+                  spider_db_discard_result(spider, roop_count, conn);
+                  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+                  pthread_mutex_unlock(&conn->mta_conn_mutex);
+                }
+              }
+            }
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+          }
+#endif
+        } else {
+          spider->connection_ids[link_idx] = conn->connection_id;
+          pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+          DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_unlock_later = TRUE;
+          if ((error_num = spider_db_store_result(spider, link_idx, table)))
+          {
+            conn->mta_conn_mutex_unlock_later = FALSE;
+            DBUG_PRINT("info",("spider error_num 10=%d", error_num));
+            DBUG_RETURN(error_num);
+          }
+          conn->mta_conn_mutex_unlock_later = FALSE;
+        }
+      } else {
+        result_list->current = result_list->current->next;
+        result_list->current_row_num = 0;
+        if (
+          result_list->current == result_list->bgs_current &&
+          result_list->finish_flg
+        ) {
+          table->status = STATUS_NOT_FOUND;
+          DBUG_PRINT("info",("spider error_num 11=%d", HA_ERR_END_OF_FILE));
+          DBUG_RETURN(HA_ERR_END_OF_FILE);
+        }
+      }
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+    }
+#endif
+    DBUG_RETURN(spider_db_fetch(buf, spider, table));
+  } else
+    DBUG_RETURN(spider_db_fetch(buf, spider, table));
+}
+
+int spider_db_seek_last(
+  uchar *buf,
+  ha_spider *spider,
+  int link_idx,
+  TABLE *table
+) {
+  int error_num;
+  SPIDER_SHARE *share = spider->share;
+  SPIDER_CONN *conn;
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  DBUG_ENTER("spider_db_seek_last");
+  if (result_list->finish_flg)
+  {
+    if (result_list->low_mem_read == 1)
+    {
+      my_message(ER_SPIDER_LOW_MEM_READ_PREV_NUM,
+        ER_SPIDER_LOW_MEM_READ_PREV_STR, MYF(0));
+      DBUG_RETURN(ER_SPIDER_LOW_MEM_READ_PREV_NUM);
+    }
+    result_list->current = result_list->last;
+    result_list->current_row_num = result_list->current->record_num - 1;
+    if (result_list->quick_mode == 0)
+      result_list->current->result->move_to_pos(result_list->current_row_num);
+    DBUG_RETURN(spider_db_fetch(buf, spider, table));
+  } else if (!result_list->sorted ||
+    result_list->internal_limit <= result_list->record_num * 2)
+  {
+    if (result_list->low_mem_read == 1)
+    {
+      my_message(ER_SPIDER_LOW_MEM_READ_PREV_NUM,
+        ER_SPIDER_LOW_MEM_READ_PREV_STR, MYF(0));
+      DBUG_RETURN(ER_SPIDER_LOW_MEM_READ_PREV_NUM);
+    }
+    spider_next_split_read_param(spider);
+    result_list->limit_num =
+      result_list->internal_limit - result_list->record_num;
+    if (spider->sql_kinds & SPIDER_SQL_KIND_SQL)
+    {
+      if ((error_num = spider->reappend_limit_sql_part(
+        result_list->internal_offset + result_list->record_num,
+        result_list->limit_num,
+        SPIDER_SQL_TYPE_SELECT_SQL)))
+        DBUG_RETURN(error_num);
+      if (
+        !result_list->use_union &&
+        (error_num = spider->append_select_lock_sql_part(
+        SPIDER_SQL_TYPE_SELECT_SQL))
+      )
+        DBUG_RETURN(error_num);
+    }
+    if (spider->sql_kinds & SPIDER_SQL_KIND_HANDLER)
+    {
+      spider_db_append_handler_next(spider);
+      if ((error_num = spider->reappend_limit_sql_part(
+        result_list->internal_offset + result_list->record_num,
+        result_list->limit_num,
+        SPIDER_SQL_TYPE_HANDLER)))
+        DBUG_RETURN(error_num);
+      if (
+        !result_list->use_union &&
+        (error_num = spider->append_select_lock_sql_part(
+        SPIDER_SQL_TYPE_HANDLER))
+      )
+        DBUG_RETURN(error_num);
+    }
+
+    int roop_start, roop_end, roop_count, lock_mode, link_ok;
+    lock_mode = spider_conn_lock_mode(spider);
+    if (lock_mode)
+    {
+      /* "for update" or "lock in share mode" */
+      link_ok = spider_conn_link_idx_next(share->link_statuses,
+        spider->conn_link_idx, -1, share->link_count,
+        SPIDER_LINK_STATUS_OK);
+      roop_start = spider_conn_link_idx_next(share->link_statuses,
+        spider->conn_link_idx, -1, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY);
+      roop_end = spider->share->link_count;
+    } else {
+      link_ok = link_idx;
+      roop_start = link_idx;
+      roop_end = link_idx + 1;
+    }
+    for (roop_count = roop_start; roop_count < roop_end;
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        spider->conn_link_idx, roop_count, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY)
+    ) {
+      ulong sql_type;
+      if (spider->sql_kind[roop_count] == SPIDER_SQL_KIND_SQL)
+      {
+        sql_type = SPIDER_SQL_TYPE_SELECT_SQL;
+      } else {
+        sql_type = SPIDER_SQL_TYPE_HANDLER;
+      }
+      conn = spider->conns[roop_count];
+      spider_db_handler *dbton_handler = spider->dbton_handler[conn->dbton_id];
+      pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+      if (dbton_handler->need_lock_before_set_sql_for_exec(sql_type))
+      {
+        pthread_mutex_lock(&conn->mta_conn_mutex);
+        SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      }
+      if ((error_num = dbton_handler->set_sql_for_exec(sql_type, roop_count)))
+      {
+        if (dbton_handler->need_lock_before_set_sql_for_exec(sql_type))
+        {
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+        }
+        DBUG_RETURN(error_num);
+      }
+      if (!dbton_handler->need_lock_before_set_sql_for_exec(sql_type))
+      {
+        pthread_mutex_lock(&conn->mta_conn_mutex);
+        SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      }
+      DBUG_PRINT("info",("spider sql_type=%lu", sql_type));
+      if (conn->db_conn->limit_mode() == 1)
+      {
+        conn->db_conn->set_limit(result_list->limit_num);
+        if (roop_count == link_ok)
+        {
+          if ((error_num = spider_db_store_result_for_reuse_cursor(
+            spider, roop_count, table)))
+          {
+            SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+            pthread_mutex_unlock(&conn->bg_conn_mutex);
+            DBUG_RETURN(error_num);
+          }
+        }
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->bg_conn_mutex);
+      } else {
+        conn->need_mon = &spider->need_mons[roop_count];
+        DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = TRUE;
+        conn->mta_conn_mutex_unlock_later = TRUE;
+        if ((error_num = spider_db_set_names(spider, conn, roop_count)))
+        {
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+          if (
+            share->monitoring_kind[roop_count] &&
+            spider->need_mons[roop_count]
+          ) {
+            error_num = spider_ping_table_mon_from_table(
+                spider->wide_handler->trx,
+                spider->wide_handler->trx->thd,
+                share,
+                roop_count,
+                (uint32) share->monitoring_sid[roop_count],
+                share->table_name,
+                share->table_name_length,
+                spider->conn_link_idx[roop_count],
+                NULL,
+                0,
+                share->monitoring_kind[roop_count],
+                share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
+                TRUE
+              );
+          }
+          DBUG_RETURN(error_num);
+        }
+        spider_conn_set_timeout_from_share(conn, roop_count,
+          spider->wide_handler->trx->thd,
+          share);
+        if (dbton_handler->execute_sql(
+          sql_type,
+          conn,
+          result_list->quick_mode,
+          &spider->need_mons[roop_count])
+        ) {
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          error_num = spider_db_errorno(conn);
+          if (
+            share->monitoring_kind[roop_count] &&
+            spider->need_mons[roop_count]
+          ) {
+            error_num = spider_ping_table_mon_from_table(
+                spider->wide_handler->trx,
+                spider->wide_handler->trx->thd,
+                share,
+                roop_count,
+                (uint32) share->monitoring_sid[roop_count],
+                share->table_name,
+                share->table_name_length,
+                spider->conn_link_idx[roop_count],
+                NULL,
+                0,
+                share->monitoring_kind[roop_count],
+                share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
+                TRUE
+              );
+          }
+          DBUG_RETURN(error_num);
+        }
+        spider->connection_ids[roop_count] = conn->connection_id;
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        if (roop_count == link_ok)
+        {
+          if ((error_num = spider_db_store_result(spider, roop_count, table)))
+          {
+            if (
+              error_num != HA_ERR_END_OF_FILE &&
+              share->monitoring_kind[roop_count] &&
+              spider->need_mons[roop_count]
+            ) {
+              error_num = spider_ping_table_mon_from_table(
+                  spider->wide_handler->trx,
+                  spider->wide_handler->trx->thd,
+                  share,
+                  roop_count,
+                  (uint32) share->monitoring_sid[roop_count],
+                  share->table_name,
+                  share->table_name_length,
+                  spider->conn_link_idx[roop_count],
+                  NULL,
+                  0,
+                  share->monitoring_kind[roop_count],
+                  share->monitoring_limit[roop_count],
+                  share->monitoring_flag[roop_count],
+                  TRUE
+                );
+            }
+            DBUG_RETURN(error_num);
+          }
+          spider->result_link_idx = link_ok;
+        } else {
+          spider_db_discard_result(spider, roop_count, conn);
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+        }
+      }
+    }
+    result_list->current_row_num = result_list->current->record_num - 1;
+    if (result_list->quick_mode == 0)
+      result_list->current->result->move_to_pos(result_list->current_row_num);
+    DBUG_RETURN(spider_db_fetch(buf, spider, table));
+  }
+  if ((error_num = spider_db_free_result(spider, FALSE)))
+    DBUG_RETURN(error_num);
+  spider_first_split_read_param(spider);
+  result_list->desc_flg = !(result_list->desc_flg);
+  result_list->limit_num =
+    result_list->internal_limit >= result_list->split_read ?
+    result_list->split_read : result_list->internal_limit;
+  if (spider->sql_kinds & SPIDER_SQL_KIND_SQL)
+  {
+    spider->set_order_to_pos_sql(SPIDER_SQL_TYPE_SELECT_SQL);
+    if (
+      (error_num = spider->append_key_order_with_alias_sql_part(
+        NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL)) ||
+      (error_num = spider->append_limit_sql_part(
+        result_list->internal_offset,
+        result_list->limit_num, SPIDER_SQL_TYPE_SELECT_SQL)) ||
+      (
+        !result_list->use_union &&
+        (spider->sql_kinds & SPIDER_SQL_KIND_SQL) &&
+        (error_num = spider->append_select_lock_sql_part(
+          SPIDER_SQL_TYPE_SELECT_SQL))
+      )
+    )
+      DBUG_RETURN(error_num);
+  }
+  if (spider->sql_kinds & SPIDER_SQL_KIND_HANDLER)
+  {
+    const char *alias;
+    uint alias_length;
+    if (result_list->sorted && result_list->desc_flg)
+    {
+      alias = SPIDER_SQL_LAST_STR;
+      alias_length = SPIDER_SQL_LAST_LEN;
+    } else {
+      alias = SPIDER_SQL_FIRST_STR;
+      alias_length = SPIDER_SQL_FIRST_LEN;
+    }
+    spider->set_order_to_pos_sql(SPIDER_SQL_TYPE_HANDLER);
+    if (
+      (error_num = spider->append_key_order_with_alias_sql_part(
+        alias, alias_length, SPIDER_SQL_TYPE_HANDLER)) ||
+      (error_num = spider->reappend_limit_sql_part(
+        result_list->internal_offset,
+        result_list->limit_num, SPIDER_SQL_TYPE_HANDLER))
+    )
+      DBUG_RETURN(error_num);
+  }
+
+  int roop_start, roop_end, roop_count, lock_mode, link_ok;
+  lock_mode = spider_conn_lock_mode(spider);
+  if (lock_mode)
+  {
+    /* "for update" or "lock in share mode" */
+    link_ok = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, -1, share->link_count,
+      SPIDER_LINK_STATUS_OK);
+    roop_start = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, -1, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY);
+    roop_end = spider->share->link_count;
+  } else {
+    link_ok = link_idx;
+    roop_start = link_idx;
+    roop_end = link_idx + 1;
+  }
+  for (roop_count = roop_start; roop_count < roop_end;
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, roop_count, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY)
+  ) {
+    ulong sql_type;
+    if (spider->sql_kind[roop_count] == SPIDER_SQL_KIND_SQL)
+    {
+      sql_type = SPIDER_SQL_TYPE_SELECT_SQL;
+    } else {
+      sql_type = SPIDER_SQL_TYPE_HANDLER;
+    }
+    conn = spider->conns[roop_count];
+    spider_db_handler *dbton_handler = spider->dbton_handler[conn->dbton_id];
+    pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+    if (dbton_handler->need_lock_before_set_sql_for_exec(sql_type))
+    {
+      pthread_mutex_lock(&conn->mta_conn_mutex);
+      SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    }
+    if ((error_num = dbton_handler->set_sql_for_exec(sql_type, roop_count)))
+    {
+      if (dbton_handler->need_lock_before_set_sql_for_exec(sql_type))
+      {
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+      }
+      DBUG_RETURN(error_num);
+    }
+    if (!dbton_handler->need_lock_before_set_sql_for_exec(sql_type))
+    {
+      pthread_mutex_lock(&conn->mta_conn_mutex);
+      SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    }
+    DBUG_PRINT("info",("spider sql_type=%lu", sql_type));
+    conn->need_mon = &spider->need_mons[roop_count];
+    DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = TRUE;
+    conn->mta_conn_mutex_unlock_later = TRUE;
+    if ((error_num = spider_db_set_names(spider, conn, roop_count)))
+    {
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      if (
+        share->monitoring_kind[roop_count] &&
+        spider->need_mons[roop_count]
+      ) {
+        error_num = spider_ping_table_mon_from_table(
+            spider->wide_handler->trx,
+            spider->wide_handler->trx->thd,
+            share,
+            roop_count,
+            (uint32) share->monitoring_sid[roop_count],
+            share->table_name,
+            share->table_name_length,
+            spider->conn_link_idx[roop_count],
+            NULL,
+            0,
+            share->monitoring_kind[roop_count],
+            share->monitoring_limit[roop_count],
+            share->monitoring_flag[roop_count],
+            TRUE
+          );
+      }
+      DBUG_RETURN(error_num);
+    }
+    spider_conn_set_timeout_from_share(conn, roop_count,
+      spider->wide_handler->trx->thd,
+      share);
+    if (dbton_handler->execute_sql(
+      sql_type,
+      conn,
+      result_list->quick_mode,
+      &spider->need_mons[roop_count])
+    ) {
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      error_num = spider_db_errorno(conn);
+      if (
+        share->monitoring_kind[roop_count] &&
+        spider->need_mons[roop_count]
+      ) {
+        error_num = spider_ping_table_mon_from_table(
+            spider->wide_handler->trx,
+            spider->wide_handler->trx->thd,
+            share,
+            roop_count,
+            (uint32) share->monitoring_sid[roop_count],
+            share->table_name,
+            share->table_name_length,
+            spider->conn_link_idx[roop_count],
+            NULL,
+            0,
+            share->monitoring_kind[roop_count],
+            share->monitoring_limit[roop_count],
+            share->monitoring_flag[roop_count],
+            TRUE
+          );
+      }
+      DBUG_RETURN(error_num);
+    }
+    spider->connection_ids[roop_count] = conn->connection_id;
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    if (roop_count == link_ok)
+    {
+      if ((error_num = spider_db_store_result(spider, roop_count, table)))
+      {
+        if (
+          error_num != HA_ERR_END_OF_FILE &&
+          share->monitoring_kind[roop_count] &&
+          spider->need_mons[roop_count]
+        ) {
+          error_num = spider_ping_table_mon_from_table(
+              spider->wide_handler->trx,
+              spider->wide_handler->trx->thd,
+              share,
+              roop_count,
+              (uint32) share->monitoring_sid[roop_count],
+              share->table_name,
+              share->table_name_length,
+              spider->conn_link_idx[roop_count],
+              NULL,
+              0,
+              share->monitoring_kind[roop_count],
+              share->monitoring_limit[roop_count],
+              share->monitoring_flag[roop_count],
+              TRUE
+            );
+        }
+        DBUG_RETURN(error_num);
+      }
+      spider->result_link_idx = link_ok;
+    } else {
+      spider_db_discard_result(spider, roop_count, conn);
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+    }
+  }
+  DBUG_RETURN(spider_db_fetch(buf, spider, table));
+}
+
+int spider_db_seek_first(
+  uchar *buf,
+  ha_spider *spider,
+  TABLE *table
+) {
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  DBUG_ENTER("spider_db_seek_first");
+  if (
+    result_list->current != result_list->first &&
+    result_list->low_mem_read == 1
+  ) {
+    my_message(ER_SPIDER_LOW_MEM_READ_PREV_NUM, ER_SPIDER_LOW_MEM_READ_PREV_STR, MYF(0));
+    DBUG_RETURN(ER_SPIDER_LOW_MEM_READ_PREV_NUM);
+  }
+  result_list->current = result_list->first;
+  spider_db_set_pos_to_first_row(result_list);
+  DBUG_RETURN(spider_db_fetch(buf, spider, table));
+}
+
+void spider_db_set_pos_to_first_row(
+  SPIDER_RESULT_LIST *result_list
+) {
+  DBUG_ENTER("spider_db_set_pos_to_first_row");
+  result_list->current_row_num = 0;
+  if (result_list->quick_mode == 0)
+    result_list->current->result->move_to_pos(0);
+  DBUG_VOID_RETURN;
+}
+
+void spider_db_create_position(
+  ha_spider *spider,
+  SPIDER_POSITION *pos
+) {
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  SPIDER_RESULT *current = (SPIDER_RESULT*) result_list->current;
+  DBUG_ENTER("spider_db_create_position");
+  if (result_list->quick_mode == 0)
+  {
+    SPIDER_DB_RESULT *result = current->result;
+    pos->row = result->current_row();
+    pos->pos_mode = 2;
+    pos->row->next_pos = result_list->tmp_pos_row_first;
+    result_list->tmp_pos_row_first = pos->row;
+  } else {
+    if (result_list->current_row_num <= result_list->quick_page_size)
+    {
+      SPIDER_POSITION *tmp_pos =
+        &current->first_position[result_list->current_row_num - 1];
+      memcpy(pos, tmp_pos, sizeof(SPIDER_POSITION));
+      tmp_pos->use_position = TRUE;
+      tmp_pos->pos_mode = 0;
+      pos->pos_mode = 0;
+      current->first_pos_use_position = TRUE;
+    } else {
+      TABLE *tmp_tbl = current->result_tmp_tbl;
+      pos->row = NULL;
+      pos->pos_mode = 1;
+      DBUG_PRINT("info",("spider tmp_tbl=%p", tmp_tbl));
+      DBUG_PRINT("info",("spider tmp_tbl->file=%p", tmp_tbl->file));
+      DBUG_PRINT("info",("spider tmp_tbl->file->ref=%p", tmp_tbl->file->ref));
+      tmp_tbl->file->ref = (uchar *) &pos->tmp_tbl_pos;
+      tmp_tbl->file->position(tmp_tbl->record[0]);
+      current->tmp_tbl_use_position = TRUE;
+    }
+  }
+  current->use_position = TRUE;
+  pos->use_position = TRUE;
+  pos->mrr_with_cnt = spider->mrr_with_cnt;
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  pos->direct_aggregate = result_list->direct_aggregate;
+#endif
+  pos->sql_kind = spider->sql_kind[spider->result_link_idx];
+  pos->position_bitmap = spider->wide_handler->position_bitmap;
+  pos->ft_first = spider->ft_first;
+  pos->ft_current = spider->ft_current;
+  pos->result = current;
+  DBUG_VOID_RETURN;
+}
+
+int spider_db_seek_tmp(
+  uchar *buf,
+  SPIDER_POSITION *pos,
+  ha_spider *spider,
+  TABLE *table
+) {
+  int error_num;
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  DBUG_ENTER("spider_db_seek_tmp");
+  if (pos->pos_mode != 1)
+  {
+    if (!pos->row)
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    pos->row->first();
+  }
+  if (pos->sql_kind == SPIDER_SQL_KIND_SQL)
+  {
+    if (!spider->select_column_mode)
+    {
+      if (result_list->keyread)
+        error_num = spider_db_seek_tmp_key(buf, pos, spider, table,
+          result_list->key_info);
+      else
+        error_num = spider_db_seek_tmp_table(buf, pos, spider, table);
+    } else
+      error_num = spider_db_seek_tmp_minimum_columns(buf, pos, spider, table);
+  } else
+    error_num = spider_db_seek_tmp_table(buf, pos, spider, table);
+
+  DBUG_PRINT("info",("spider error_num=%d", error_num));
+  DBUG_RETURN(error_num);
+}
+
+int spider_db_seek_tmp_table(
+  uchar *buf,
+  SPIDER_POSITION *pos,
+  ha_spider *spider,
+  TABLE *table
+) {
+  int error_num;
+  Field **field;
+  SPIDER_DB_ROW *row = pos->row;
+  my_ptrdiff_t ptr_diff = PTR_BYTE_DIFF(buf, table->record[0]);
+  DBUG_ENTER("spider_db_seek_tmp_table");
+  if (pos->pos_mode == 1)
+  {
+    if ((error_num = spider_db_get_row_from_tmp_tbl_pos(pos, &row)))
+      DBUG_RETURN(error_num);
+  } else if (pos->pos_mode == 2)
+  {
+/*
+    SPIDER_DB_RESULT *result = pos->result->result;
+    result->current_row = row;
+*/
+  }
+
+  DBUG_PRINT("info", ("spider row=%p", row));
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  if (!spider->result_list.in_cmp_ref)
+  {
+    DBUG_PRINT("info", ("spider direct_aggregate=%s",
+      pos->direct_aggregate ? "TRUE" : "FALSE"));
+    spider->result_list.snap_mrr_with_cnt = pos->mrr_with_cnt;
+    spider->result_list.snap_direct_aggregate = pos->direct_aggregate;
+    spider->result_list.snap_row = row;
+  }
+#endif
+
+  /* for mrr */
+  if (pos->mrr_with_cnt)
+  {
+    DBUG_PRINT("info", ("spider mrr_with_cnt"));
+    if (pos->sql_kind == SPIDER_SQL_KIND_SQL)
+    {
+      row->next();
+    } else {
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+      spider->result_list.snap_mrr_with_cnt = FALSE;
+#endif
+    }
+  }
+
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  /* for direct_aggregate */
+  if (pos->direct_aggregate)
+  {
+    if ((error_num = spider_db_fetch_for_item_sum_funcs(row, spider)))
+      DBUG_RETURN(error_num);
+  }
+#endif
+
+  if ((error_num = spider_db_append_match_fetch(spider,
+    pos->ft_first, pos->ft_current, row)))
+    DBUG_RETURN(error_num);
+
+  for (
+    field = table->field;
+    *field;
+    field++
+  ) {
+    if ((
+      bitmap_is_set(table->read_set, (*field)->field_index) |
+      bitmap_is_set(table->write_set, (*field)->field_index)
+    )) {
+#ifndef DBUG_OFF
+      MY_BITMAP *tmp_map =
+        dbug_tmp_use_all_columns(table, &table->write_set);
+#endif
+      DBUG_PRINT("info", ("spider bitmap is set %s",
+        SPIDER_field_name_str(*field)));
+      if ((error_num =
+        spider_db_fetch_row(spider->share, *field, row, ptr_diff)))
+        DBUG_RETURN(error_num);
+#ifndef DBUG_OFF
+      dbug_tmp_restore_column_map(&table->write_set, tmp_map);
+#endif
+    }
+    row->next();
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_seek_tmp_key(
+  uchar *buf,
+  SPIDER_POSITION *pos,
+  ha_spider *spider,
+  TABLE *table,
+  const KEY *key_info
+) {
+  int error_num;
+  KEY_PART_INFO *key_part;
+  uint part_num;
+  SPIDER_DB_ROW *row = pos->row;
+  Field *field;
+  my_ptrdiff_t ptr_diff = PTR_BYTE_DIFF(buf, table->record[0]);
+  DBUG_ENTER("spider_db_seek_tmp_key");
+  if (pos->pos_mode == 1)
+  {
+    if ((error_num = spider_db_get_row_from_tmp_tbl_pos(pos, &row)))
+      DBUG_RETURN(error_num);
+  } else if (pos->pos_mode == 2)
+  {
+/*
+    SPIDER_DB_RESULT *result = pos->result->result;
+    result->current_row = row;
+*/
+  }
+
+  DBUG_PRINT("info", ("spider row=%p", row));
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  if (!spider->result_list.in_cmp_ref)
+  {
+    DBUG_PRINT("info", ("spider direct_aggregate=%s",
+      pos->direct_aggregate ? "TRUE" : "FALSE"));
+    spider->result_list.snap_mrr_with_cnt = pos->mrr_with_cnt;
+    spider->result_list.snap_direct_aggregate = pos->direct_aggregate;
+    spider->result_list.snap_row = row;
+  }
+#endif
+
+  /* for mrr */
+  if (pos->mrr_with_cnt)
+  {
+    DBUG_PRINT("info", ("spider mrr_with_cnt"));
+    row->next();
+  }
+
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  /* for direct_aggregate */
+  if (pos->direct_aggregate)
+  {
+    if ((error_num = spider_db_fetch_for_item_sum_funcs(row, spider)))
+      DBUG_RETURN(error_num);
+  }
+#endif
+
+  if ((error_num = spider_db_append_match_fetch(spider,
+    pos->ft_first, pos->ft_current, row)))
+    DBUG_RETURN(error_num);
+
+  for (
+    key_part = key_info->key_part,
+    part_num = 0;
+    part_num < spider_user_defined_key_parts(key_info);
+    key_part++,
+    part_num++
+  ) {
+    field = key_part->field;
+    if ((
+      bitmap_is_set(table->read_set, field->field_index) |
+      bitmap_is_set(table->write_set, field->field_index)
+    )) {
+#ifndef DBUG_OFF
+      MY_BITMAP *tmp_map =
+        dbug_tmp_use_all_columns(table, &table->write_set);
+#endif
+      DBUG_PRINT("info", ("spider bitmap is set %s",
+        SPIDER_field_name_str(field)));
+      if ((error_num =
+        spider_db_fetch_row(spider->share, field, row, ptr_diff)))
+        DBUG_RETURN(error_num);
+#ifndef DBUG_OFF
+      dbug_tmp_restore_column_map(&table->write_set, tmp_map);
+#endif
+    }
+    row->next();
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_seek_tmp_minimum_columns(
+  uchar *buf,
+  SPIDER_POSITION *pos,
+  ha_spider *spider,
+  TABLE *table
+) {
+  int error_num;
+  Field **field;
+  SPIDER_DB_ROW *row = pos->row;
+  my_ptrdiff_t ptr_diff = PTR_BYTE_DIFF(buf, table->record[0]);
+  DBUG_ENTER("spider_db_seek_tmp_minimum_columns");
+  if (pos->pos_mode == 1)
+  {
+    if ((error_num = spider_db_get_row_from_tmp_tbl_pos(pos, &row)))
+      DBUG_RETURN(error_num);
+  } else if (pos->pos_mode == 2)
+  {
+/*
+    SPIDER_DB_RESULT *result = pos->result->result;
+    result->current_row = row;
+*/
+  }
+
+  DBUG_PRINT("info", ("spider row=%p", row));
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  if (!spider->result_list.in_cmp_ref)
+  {
+    DBUG_PRINT("info", ("spider direct_aggregate=%s",
+      pos->direct_aggregate ? "TRUE" : "FALSE"));
+    spider->result_list.snap_mrr_with_cnt = pos->mrr_with_cnt;
+    spider->result_list.snap_direct_aggregate = pos->direct_aggregate;
+    spider->result_list.snap_row = row;
+  }
+#endif
+
+  /* for mrr */
+  if (pos->mrr_with_cnt)
+  {
+    DBUG_PRINT("info", ("spider mrr_with_cnt"));
+    row->next();
+  }
+
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  /* for direct_aggregate */
+  if (pos->direct_aggregate)
+  {
+    if ((error_num = spider_db_fetch_for_item_sum_funcs(row, spider)))
+      DBUG_RETURN(error_num);
+  }
+#endif
+
+  if ((error_num = spider_db_append_match_fetch(spider,
+    pos->ft_first, pos->ft_current, row)))
+    DBUG_RETURN(error_num);
+
+  for (
+    field = table->field;
+    *field;
+    field++
+  ) {
+    DBUG_PRINT("info", ("spider field_index %u", (*field)->field_index));
+    if (spider_bit_is_set(pos->position_bitmap, (*field)->field_index))
+    {
+/*
+    if ((
+      bitmap_is_set(table->read_set, (*field)->field_index) |
+      bitmap_is_set(table->write_set, (*field)->field_index)
+    )) {
+      DBUG_PRINT("info", ("spider read_set %u",
+        bitmap_is_set(table->read_set, (*field)->field_index)));
+      DBUG_PRINT("info", ("spider write_set %u",
+        bitmap_is_set(table->write_set, (*field)->field_index)));
+*/
+#ifndef DBUG_OFF
+      MY_BITMAP *tmp_map =
+        dbug_tmp_use_all_columns(table, &table->write_set);
+#endif
+      DBUG_PRINT("info", ("spider bitmap is set %s",
+        SPIDER_field_name_str(*field)));
+      if ((error_num =
+        spider_db_fetch_row(spider->share, *field, row, ptr_diff)))
+        DBUG_RETURN(error_num);
+      row->next();
+#ifndef DBUG_OFF
+      dbug_tmp_restore_column_map(&table->write_set, tmp_map);
+#endif
+    }
+    else if (bitmap_is_set(table->read_set, (*field)->field_index))
+    {
+      DBUG_PRINT("info", ("spider bitmap is cleared %s",
+        SPIDER_field_name_str(*field)));
+      bitmap_clear_bit(table->read_set, (*field)->field_index);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_show_table_status(
+  ha_spider *spider,
+  int link_idx,
+  int sts_mode,
+  uint flag
+) {
+  int error_num;
+  SPIDER_CONN *conn = spider->conns[link_idx];
+  spider_db_handler *dbton_hdl = spider->dbton_handler[conn->dbton_id];
+  DBUG_ENTER("spider_db_show_table_status");
+  DBUG_PRINT("info",("spider sts_mode=%d", sts_mode));
+  sts_mode = dbton_hdl->sts_mode_exchange(sts_mode);
+  error_num = dbton_hdl->show_table_status(
+    link_idx,
+    sts_mode,
+    flag
+  );
+  DBUG_RETURN(error_num);
+}
+
+int spider_db_simple_action(
+  uint simple_action,
+  spider_db_handler *db_handler,
+  int link_idx
+) {
+  int error_num;
+  DBUG_ENTER("spider_db_simple_action");
+  switch (simple_action)
+  {
+    case SPIDER_SIMPLE_RECORDS:
+      DBUG_PRINT("info",("spider simple records"));
+      error_num = db_handler->show_records(
+        link_idx
+      );
+      break;
+#ifdef HA_HAS_CHECKSUM_EXTENDED
+    case SPIDER_SIMPLE_CHECKSUM_TABLE:
+      DBUG_PRINT("info",("spider simple checksum_table"));
+      error_num = db_handler->checksum_table(
+        link_idx
+      );
+      break;
+#endif
+    default:
+      DBUG_ASSERT(0);
+      error_num = HA_ERR_CRASHED;
+      break;
+  }
+  DBUG_RETURN(error_num);
+}
+
+int spider_db_simple_action(
+  uint simple_action,
+  ha_spider *spider,
+  int link_idx,
+  bool pre_call
+) {
+  int error_num;
+  THD *thd = spider->wide_handler->trx->thd;
+  SPIDER_CONN *conn;
+  DBUG_ENTER("spider_db_simple_action");
+  if (pre_call)
+  {
+    if (spider_param_bgs_mode(thd, spider->share->bgs_mode))
+    {
+      if ((error_num = spider_check_and_get_casual_read_conn(thd, spider,
+        link_idx)))
+      {
+        DBUG_RETURN(error_num);
+      }
+      conn = spider->conns[link_idx];
+      if (!(error_num = spider_create_conn_thread(conn)))
+      {
+        spider_bg_conn_simple_action(conn, simple_action, FALSE,
+          spider, link_idx, (int *) &spider->result_list.bgs_error);
+      }
+    } else {
+      conn = spider->conns[link_idx];
+      error_num = spider_db_simple_action(
+        simple_action,
+        spider->dbton_handler[conn->dbton_id],
+        link_idx
+      );
+    }
+  } else {
+    conn = spider->conns[link_idx];
+    if (spider->use_pre_action)
+    {
+      if (spider_param_bgs_mode(thd, spider->share->bgs_mode))
+      {
+        spider_bg_conn_wait(conn);
+        error_num = spider->result_list.bgs_error;
+        if (conn->casual_read_base_conn)
+        {
+          spider->conns[link_idx] = conn->casual_read_base_conn;
+        }
+      } else {
+        error_num = 0;
+      }
+    } else {
+      error_num = spider_db_simple_action(
+        simple_action,
+        spider->dbton_handler[conn->dbton_id],
+        link_idx
+      );
+    }
+  }
+  DBUG_RETURN(error_num);
+}
+
+void spider_db_set_cardinarity(
+  ha_spider *spider,
+  TABLE *table
+) {
+  int roop_count, roop_count2;
+  SPIDER_SHARE *share = spider->share;
+  KEY *key_info;
+  KEY_PART_INFO *key_part;
+  Field *field;
+  ha_rows rec_per_key;
+  DBUG_ENTER("spider_db_set_cardinarity");
+  for (roop_count = 0; roop_count < (int) table->s->keys; roop_count++)
+  {
+    key_info = &table->key_info[roop_count];
+    for (roop_count2 = 0;
+      roop_count2 < (int) spider_user_defined_key_parts(key_info);
+      roop_count2++)
+    {
+      key_part = &key_info->key_part[roop_count2];
+      field = key_part->field;
+      if (share->cardinality[field->field_index])
+      {
+        rec_per_key = (ha_rows) share->stat.records /
+          share->cardinality[field->field_index];
+        if (rec_per_key > ~(ulong) 0)
+          key_info->rec_per_key[roop_count2] = ~(ulong) 0;
+        else if (rec_per_key == 0)
+          key_info->rec_per_key[roop_count2] = 1;
+        else
+          key_info->rec_per_key[roop_count2] = (ulong) rec_per_key;
+      } else {
+        key_info->rec_per_key[roop_count2] = 1;
+      }
+      DBUG_PRINT("info",
+        ("spider column id=%d", field->field_index));
+      DBUG_PRINT("info",
+        ("spider cardinality=%lld",
+        share->cardinality[field->field_index]));
+      DBUG_PRINT("info",
+        ("spider rec_per_key=%lu",
+        key_info->rec_per_key[roop_count2]));
+    }
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_db_show_index(
+  ha_spider *spider,
+  int link_idx,
+  TABLE *table,
+  int crd_mode
+) {
+  int error_num;
+  SPIDER_CONN *conn = spider->conns[link_idx];
+  spider_db_handler *dbton_hdl = spider->dbton_handler[conn->dbton_id];
+  DBUG_ENTER("spider_db_show_index");
+  crd_mode = dbton_hdl->crd_mode_exchange(crd_mode);
+  error_num = spider->dbton_handler[conn->dbton_id]->show_index(
+    link_idx,
+    crd_mode
+  );
+  DBUG_RETURN(error_num);
+}
+
+ha_rows spider_db_explain_select(
+  const key_range *start_key,
+  const key_range *end_key,
+  ha_spider *spider,
+  int link_idx
+) {
+  SPIDER_CONN *conn = spider->conns[link_idx];
+  ha_rows rows;
+  DBUG_ENTER("spider_db_explain_select");
+  rows = spider->dbton_handler[conn->dbton_id]->explain_select(
+    start_key,
+    end_key,
+    link_idx
+  );
+  DBUG_RETURN(rows);
+}
+
+int spider_db_bulk_insert_init(
+  ha_spider *spider,
+  const TABLE *table
+) {
+  int error_num, roop_count;
+  SPIDER_SHARE *share = spider->share;
+  DBUG_ENTER("spider_db_bulk_insert_init");
+  spider->sql_kinds = 0;
+  spider->reset_sql_sql(SPIDER_SQL_TYPE_INSERT_SQL);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  spider->reset_hs_sql(SPIDER_SQL_TYPE_OTHER_HS);
+#endif
+  for (
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, -1, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY);
+    roop_count < (int) share->link_count;
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, roop_count, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY)
+  ) {
+    if (spider->conns[roop_count])
+      spider->conns[roop_count]->ignore_dup_key =
+        spider->wide_handler->ignore_dup_key;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    if (
+      spider_conn_use_handler(spider, spider->lock_mode, roop_count) &&
+      (
+        !spider->handler_opened(roop_count, SPIDER_CONN_KIND_HS_WRITE) ||
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+        spider->hs_w_ret_fields_num[roop_count] < MAX_FIELDS ||
+#endif
+        spider->hs_w_conns[roop_count]->server_lost
+      )
+    ) {
+      if ((error_num = spider_db_open_handler(spider,
+        spider->hs_w_conns[roop_count], roop_count)))
+      {
+        if (
+          share->monitoring_kind[roop_count] &&
+          spider->need_mons[roop_count]
+        ) {
+          error_num = spider_ping_table_mon_from_table(
+              spider->wide_handler->trx,
+              spider->wide_handler->trx->thd,
+              share,
+              roop_count,
+              (uint32) share->monitoring_sid[roop_count],
+              share->table_name,
+              share->table_name_length,
+              spider->conn_link_idx[roop_count],
+              NULL,
+              0,
+              share->monitoring_kind[roop_count],
+              share->monitoring_limit[roop_count],
+              share->monitoring_flag[roop_count],
+              TRUE
+            );
+        }
+        DBUG_RETURN(error_num);
+      }
+      spider->set_handler_opened(roop_count);
+    }
+#else
+    spider_conn_use_handler(spider, spider->wide_handler->lock_mode,
+      roop_count);
+#endif
+  }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (spider->sql_kinds & SPIDER_SQL_KIND_SQL)
+  {
+#endif
+    if (
+      (error_num = spider->append_insert_sql_part()) ||
+      (error_num = spider->append_into_sql_part(
+        SPIDER_SQL_TYPE_INSERT_SQL))
+    )
+      DBUG_RETURN(error_num);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  }
+  if (spider->sql_kinds & SPIDER_SQL_KIND_HS)
+  {
+    spider->result_list.hs_upd_rows = 0;
+  }
+#endif
+  DBUG_RETURN(0);
+}
+
+int spider_db_bulk_insert(
+  ha_spider *spider,
+  TABLE *table,
+  ha_copy_info *copy_info,
+  bool bulk_end
+) {
+  int error_num, first_insert_link_idx = -1;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+#endif
+  SPIDER_SHARE *share = spider->share;
+  THD *thd = spider->wide_handler->trx->thd;
+  DBUG_ENTER("spider_db_bulk_insert");
+
+  if (!bulk_end)
+  {
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    if (spider->sql_kinds & SPIDER_SQL_KIND_SQL)
+    {
+#endif
+      if ((error_num = spider->append_insert_values_sql_part(
+        SPIDER_SQL_TYPE_INSERT_SQL)))
+        DBUG_RETURN(error_num);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    }
+    if (spider->sql_kinds & SPIDER_SQL_KIND_HS)
+    {
+      if ((error_num = spider->append_insert_values_hs_part(
+        SPIDER_SQL_TYPE_INSERT_HS)))
+        DBUG_RETURN(error_num);
+      result_list->hs_upd_rows++;
+    }
+#endif
+  }
+
+  if (spider->is_bulk_insert_exec_period(bulk_end))
+  {
+    int roop_count2;
+    SPIDER_CONN *conn, *first_insert_conn = NULL;
+    if ((error_num = spider->append_insert_terminator_sql_part(
+      SPIDER_SQL_TYPE_INSERT_SQL)))
+    {
+      DBUG_RETURN(error_num);
+    }
+#ifdef HA_CAN_BULK_ACCESS
+    if (!spider->is_bulk_access_clone)
+    {
+#endif
+      bool insert_info = FALSE;
+      for (
+        roop_count2 = spider_conn_link_idx_next(share->link_statuses,
+          spider->conn_link_idx, -1, share->link_count,
+          SPIDER_LINK_STATUS_RECOVERY);
+        roop_count2 < (int) share->link_count;
+        roop_count2 = spider_conn_link_idx_next(share->link_statuses,
+          spider->conn_link_idx, roop_count2, share->link_count,
+          SPIDER_LINK_STATUS_RECOVERY)
+      ) {
+        ulong sql_type;
+        spider_db_handler *dbton_handler;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+        if (spider->conn_kind[roop_count2] == SPIDER_CONN_KIND_MYSQL)
+        {
+#endif
+          sql_type = SPIDER_SQL_TYPE_INSERT_SQL;
+          conn = spider->conns[roop_count2];
+          dbton_handler = spider->dbton_handler[conn->dbton_id];
+          pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+          if (dbton_handler->need_lock_before_set_sql_for_exec(sql_type))
+          {
+            pthread_mutex_lock(&conn->mta_conn_mutex);
+            SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          }
+          if ((error_num = dbton_handler->set_sql_for_exec(sql_type,
+            roop_count2)))
+          {
+            if (dbton_handler->need_lock_before_set_sql_for_exec(sql_type))
+            {
+              SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+              pthread_mutex_unlock(&conn->mta_conn_mutex);
+            }
+            DBUG_RETURN(error_num);
+          }
+          if (!dbton_handler->need_lock_before_set_sql_for_exec(sql_type))
+          {
+            pthread_mutex_lock(&conn->mta_conn_mutex);
+            SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+        } else {
+          sql_type = SPIDER_SQL_TYPE_INSERT_HS;
+          conn = spider->hs_w_conns[roop_count2];
+          dbton_handler = spider->dbton_handler[conn->dbton_id];
+          pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+          pthread_mutex_lock(&conn->mta_conn_mutex);
+          SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        }
+#endif
+        conn->need_mon = &spider->need_mons[roop_count2];
+        DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = TRUE;
+        conn->mta_conn_mutex_unlock_later = TRUE;
+        if ((error_num = spider_db_set_names(spider, conn, roop_count2)))
+        {
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+          if (
+            share->monitoring_kind[roop_count2] &&
+            spider->need_mons[roop_count2]
+          ) {
+            error_num = spider_ping_table_mon_from_table(
+                spider->wide_handler->trx,
+                spider->wide_handler->trx->thd,
+                share,
+                roop_count2,
+                (uint32) share->monitoring_sid[roop_count2],
+                share->table_name,
+                share->table_name_length,
+                spider->conn_link_idx[roop_count2],
+                NULL,
+                0,
+                share->monitoring_kind[roop_count2],
+                share->monitoring_limit[roop_count2],
+                share->monitoring_flag[roop_count2],
+                TRUE
+              );
+          }
+          DBUG_RETURN(error_num);
+        }
+        spider_conn_set_timeout_from_share(conn, roop_count2,
+          spider->wide_handler->trx->thd,
+          share);
+        if (dbton_handler->execute_sql(
+          sql_type,
+          conn,
+          -1,
+          &spider->need_mons[roop_count2])
+        ) {
+          if (spider->sql_kinds & SPIDER_SQL_KIND_SQL)
+            spider->set_insert_to_pos_sql(SPIDER_SQL_TYPE_INSERT_SQL);
+          error_num = spider_db_errorno(conn);
+          if (error_num == HA_ERR_FOUND_DUPP_KEY)
+          {
+            conn->db_conn->set_dup_key_idx(spider, roop_count2);
+          }
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+          if (
+            error_num != ER_DUP_ENTRY &&
+            error_num != ER_DUP_KEY &&
+            error_num != HA_ERR_FOUND_DUPP_KEY &&
+            share->monitoring_kind[roop_count2] &&
+            spider->need_mons[roop_count2]
+          ) {
+            error_num = spider_ping_table_mon_from_table(
+                spider->wide_handler->trx,
+                spider->wide_handler->trx->thd,
+                share,
+                roop_count2,
+                (uint32) share->monitoring_sid[roop_count2],
+                share->table_name,
+                share->table_name_length,
+                spider->conn_link_idx[roop_count2],
+                NULL,
+                0,
+                share->monitoring_kind[roop_count2],
+                share->monitoring_limit[roop_count2],
+                share->monitoring_flag[roop_count2],
+                TRUE
+              );
+          }
+          DBUG_RETURN(error_num);
+        }
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        if (!insert_info && copy_info)
+        {
+          insert_info =
+            conn->db_conn->inserted_info(dbton_handler, copy_info);
+        }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+        if (conn->conn_kind != SPIDER_CONN_KIND_MYSQL)
+        {
+          uint roop_count;
+          DBUG_PRINT("info",("spider conn=%p", conn));
+          DBUG_PRINT("info",("spider result_list->hs_upd_rows=%llu",
+            result_list->hs_upd_rows));
+          for (roop_count = 0; roop_count < result_list->hs_upd_rows;
+            roop_count++)
+          {
+            SPIDER_DB_RESULT *result;
+            if (spider_bit_is_set(spider->db_request_phase, roop_count2))
+            {
+              spider_clear_bit(spider->db_request_phase, roop_count2);
+            }
+            st_spider_db_request_key request_key;
+            request_key.spider_thread_id =
+              spider->wide_handler->trx->spider_thread_id;
+            request_key.query_id = spider->wide_handler->trx->thd->query_id;
+            request_key.handler = spider;
+            request_key.request_id = spider->db_request_id[roop_count2];
+            request_key.next = NULL;
+            if ((result = conn->db_conn->use_result(spider, &request_key,
+              &error_num)))
+            {
+              result->free_result();
+              delete result;
+            } else {
+              if (!error_num)
+              {
+                error_num = spider_db_errorno(conn);
+              }
+              DBUG_RETURN(error_num);
+            }
+          }
+        }
+#endif
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        if (first_insert_link_idx == -1)
+        {
+          first_insert_link_idx = roop_count2;
+          first_insert_conn = conn;
+        }
+      }
+
+      conn = first_insert_conn;
+      pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+      pthread_mutex_lock(&conn->mta_conn_mutex);
+      SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      conn->need_mon = &spider->need_mons[first_insert_link_idx];
+      DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = TRUE;
+      conn->mta_conn_mutex_unlock_later = TRUE;
+      if (spider->sql_kinds & SPIDER_SQL_KIND_SQL)
+        spider->set_insert_to_pos_sql(SPIDER_SQL_TYPE_INSERT_SQL);
+      if (table->next_number_field &&
+        (
+          !table->auto_increment_field_not_null ||
+          (
+            !table->next_number_field->val_int() &&
+            !(thd->variables.sql_mode & MODE_NO_AUTO_VALUE_ON_ZERO)
+          )
+        )
+      ) {
+        ulonglong last_insert_id;
+        spider_db_handler *dbton_handler =
+          spider->dbton_handler[conn->dbton_id];
+        if (spider->store_last_insert_id)
+          last_insert_id = spider->store_last_insert_id;
+        else if ((error_num = dbton_handler->
+          show_last_insert_id(first_insert_link_idx, last_insert_id)))
+        {
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+          DBUG_RETURN(error_num);
+        }
+        table->next_number_field->set_notnull();
+        if (
+          (error_num = spider_db_update_auto_increment(spider,
+            first_insert_link_idx)) ||
+          (error_num = table->next_number_field->store(
+            last_insert_id, TRUE))
+        ) {
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+          DBUG_RETURN(error_num);
+        }
+      }
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      spider->store_last_insert_id = 0;
+#ifdef HA_CAN_BULK_ACCESS
+    }
+#endif
+  }
+  if (
+    (bulk_end || !spider->bulk_insert) &&
+    (error_num = spider_trx_check_link_idx_failed(spider))
+  )
+    DBUG_RETURN(error_num);
+  DBUG_RETURN(0);
+}
+
+#ifdef HA_CAN_BULK_ACCESS
+int spider_db_bulk_bulk_insert(
+  ha_spider *spider
+) {
+  int error_num = 0, first_insert_link_idx = -1, tmp_error_num;
+  int roop_count2;
+  SPIDER_SHARE *share = spider->share;
+  SPIDER_CONN *conn, *first_insert_conn = NULL;
+  TABLE *table = spider->get_table();
+  THD *thd = spider->wide_handler->trx->thd;
+  DBUG_ENTER("spider_db_bulk_bulk_insert");
+  for (
+    roop_count2 = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, -1, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY);
+    roop_count2 < (int) share->link_count;
+    roop_count2 = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, roop_count2, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY)
+  ) {
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    if (spider->conn_kind[roop_count2] == SPIDER_CONN_KIND_MYSQL)
+    {
+#endif
+      conn = spider->conns[roop_count2];
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    } else {
+      conn = spider->hs_w_conns[roop_count2];
+    }
+#endif
+    pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+    pthread_mutex_lock(&conn->mta_conn_mutex);
+    SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = TRUE;
+    conn->mta_conn_mutex_unlock_later = TRUE;
+    if ((tmp_error_num = spider_db_bulk_open_handler(spider, conn,
+      roop_count2)))
+    {
+      error_num = tmp_error_num;
+    }
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    if (conn->conn_kind != SPIDER_CONN_KIND_MYSQL)
+    {
+      uint roop_count;
+      SPIDER_RESULT_LIST *result_list = &spider->result_list;
+      DBUG_PRINT("info",("spider conn=%p", conn));
+      DBUG_PRINT("info",("spider result_list->hs_upd_rows=%llu",
+        result_list->hs_upd_rows));
+      for (roop_count = 0; roop_count < result_list->hs_upd_rows;
+        roop_count++)
+      {
+        SPIDER_DB_RESULT *result;
+        if (spider_bit_is_set(spider->db_request_phase, roop_count2))
+        {
+          spider_clear_bit(spider->db_request_phase, roop_count2);
+        }
+        st_spider_db_request_key request_key;
+        request_key.spider_thread_id =
+          spider->wide_handler->trx->spider_thread_id;
+        request_key.query_id = spider->wide_handler->trx->thd->query_id;
+        request_key.handler = spider;
+        request_key.request_id = spider->db_request_id[roop_count2];
+        request_key.next = NULL;
+        if ((result = conn->db_conn->use_result(spider, &request_key,
+          &error_num)))
+        {
+          result->free_result();
+          delete result;
+        } else {
+          if (!error_num)
+          {
+            error_num = spider_db_errorno(conn);
+          }
+          DBUG_RETURN(error_num);
+        }
+      }
+    }
+#endif
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+    if (first_insert_link_idx == -1)
+    {
+      first_insert_link_idx = roop_count2;
+      first_insert_conn = conn;
+    }
+  }
+
+  conn = first_insert_conn;
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = &spider->need_mons[first_insert_link_idx];
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  if (table->next_number_field &&
+    (
+      !table->auto_increment_field_not_null ||
+      (
+        !table->next_number_field->val_int() &&
+        !(thd->variables.sql_mode & MODE_NO_AUTO_VALUE_ON_ZERO)
+      )
+    )
+  ) {
+    ulonglong last_insert_id;
+    if (spider->store_last_insert_id)
+      last_insert_id = spider->store_last_insert_id;
+    else
+      last_insert_id = conn->db_conn->last_insert_id();
+    table->next_number_field->set_notnull();
+    if (
+      (tmp_error_num = spider_db_update_auto_increment(spider,
+        first_insert_link_idx)) ||
+      (tmp_error_num = table->next_number_field->store(
+        last_insert_id, TRUE))
+    ) {
+      error_num = tmp_error_num;
+    }
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  spider->store_last_insert_id = 0;
+  DBUG_RETURN(error_num);
+}
+#endif
+
+int spider_db_update_auto_increment(
+  ha_spider *spider,
+  int link_idx
+) {
+  int roop_count;
+  THD *thd = spider->wide_handler->trx->thd;
+  ulonglong last_insert_id, affected_rows;
+  SPIDER_SHARE *share = spider->share;
+  TABLE *table = spider->get_table();
+  int auto_increment_mode = spider_param_auto_increment_mode(thd,
+    share->auto_increment_mode);
+  DBUG_ENTER("spider_db_update_auto_increment");
+  if (
+    auto_increment_mode == 2 ||
+    (auto_increment_mode == 3 && !table->auto_increment_field_not_null)
+  ) {
+    last_insert_id = spider->conns[link_idx]->db_conn->last_insert_id();
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    if (spider->conn_kind[link_idx] == SPIDER_CONN_KIND_MYSQL)
+    {
+#endif
+      affected_rows = spider->conns[link_idx]->db_conn->affected_rows();
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    } else {
+      affected_rows = spider->result_list.hs_upd_rows;
+    }
+#endif
+    DBUG_PRINT("info",("spider last_insert_id=%llu", last_insert_id));
+    share->lgtm_tblhnd_share->auto_increment_value =
+      last_insert_id + affected_rows;
+    DBUG_PRINT("info",("spider auto_increment_value=%llu",
+      share->lgtm_tblhnd_share->auto_increment_value));
+/*
+    thd->record_first_successful_insert_id_in_cur_stmt(last_insert_id);
+*/
+    if (
+      thd->first_successful_insert_id_in_cur_stmt == 0 ||
+      thd->first_successful_insert_id_in_cur_stmt > last_insert_id
+    ) {
+      bool first_set = (thd->first_successful_insert_id_in_cur_stmt == 0);
+      thd->first_successful_insert_id_in_cur_stmt = last_insert_id;
+      if (
+        table->s->next_number_keypart == 0 &&
+        mysql_bin_log.is_open() &&
+#if MYSQL_VERSION_ID < 50500
+        !thd->current_stmt_binlog_row_based
+#else
+        !thd->is_current_stmt_binlog_format_row()
+#endif
+      ) {
+        if (
+          spider->check_partitioned() &&
+          thd->auto_inc_intervals_in_cur_stmt_for_binlog.nb_elements() > 0
+        ) {
+          DBUG_PRINT("info",("spider table partitioning"));
+          Discrete_interval *current =
+            thd->auto_inc_intervals_in_cur_stmt_for_binlog.get_current();
+          current->replace(last_insert_id, affected_rows, 1);
+        } else {
+          DBUG_PRINT("info",("spider table"));
+          thd->auto_inc_intervals_in_cur_stmt_for_binlog.append(
+            last_insert_id, affected_rows, 1);
+        }
+        if (affected_rows > 1 || !first_set)
+        {
+          for (roop_count = first_set ? 1 : 0;
+            roop_count < (int) affected_rows;
+            roop_count++)
+            push_warning_printf(thd, SPIDER_WARN_LEVEL_NOTE,
+              ER_SPIDER_AUTOINC_VAL_IS_DIFFERENT_NUM,
+              ER_SPIDER_AUTOINC_VAL_IS_DIFFERENT_STR);
+        }
+      }
+    } else {
+      if (
+        table->s->next_number_keypart == 0 &&
+        mysql_bin_log.is_open() &&
+#if MYSQL_VERSION_ID < 50500
+        !thd->current_stmt_binlog_row_based
+#else
+        !thd->is_current_stmt_binlog_format_row()
+#endif
+      ) {
+        for (roop_count = 0; roop_count < (int) affected_rows; roop_count++)
+          push_warning_printf(thd, SPIDER_WARN_LEVEL_NOTE,
+            ER_SPIDER_AUTOINC_VAL_IS_DIFFERENT_NUM,
+            ER_SPIDER_AUTOINC_VAL_IS_DIFFERENT_STR);
+      }
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_bulk_update_size_limit(
+  ha_spider *spider,
+  TABLE *table
+) {
+  int error_num, roop_count;
+  SPIDER_SHARE *share = spider->share;
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  SPIDER_CONN *conn;
+  ha_rows dup_key_found = 0;
+  DBUG_ENTER("spider_db_bulk_update_size_limit");
+
+  if (result_list->bulk_update_mode == 1)
+  {
+    /* execute bulk updating */
+    for (
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        spider->conn_link_idx, -1, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY);
+      roop_count < (int) share->link_count;
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        spider->conn_link_idx, roop_count, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY)
+    ) {
+      conn = spider->conns[roop_count];
+      spider_db_handler *dbton_hdl = spider->dbton_handler[conn->dbton_id];
+      pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+      if (dbton_hdl->need_lock_before_set_sql_for_exec(
+        SPIDER_SQL_TYPE_BULK_UPDATE_SQL))
+      {
+        pthread_mutex_lock(&conn->mta_conn_mutex);
+        SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      }
+      if ((error_num = dbton_hdl->set_sql_for_exec(
+        SPIDER_SQL_TYPE_BULK_UPDATE_SQL, roop_count)))
+      {
+        if (dbton_hdl->need_lock_before_set_sql_for_exec(
+          SPIDER_SQL_TYPE_BULK_UPDATE_SQL))
+        {
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+        }
+        DBUG_RETURN(error_num);
+      }
+      if (!dbton_hdl->need_lock_before_set_sql_for_exec(
+        SPIDER_SQL_TYPE_BULK_UPDATE_SQL))
+      {
+        pthread_mutex_lock(&conn->mta_conn_mutex);
+        SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      }
+      if ((error_num = spider_db_query_for_bulk_update(
+        spider, conn, roop_count, &dup_key_found)))
+      {
+        pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+        DBUG_RETURN(error_num);
+      }
+      pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+    }
+    spider->reset_sql_sql(SPIDER_SQL_TYPE_BULK_UPDATE_SQL);
+  } else {
+    /* store query to temporary tables */
+    if ((error_num = spider->mk_bulk_tmp_table_and_bulk_start()))
+    {
+      goto error_mk_table;
+    }
+    if ((error_num = spider->bulk_tmp_table_insert()))
+    {
+      goto error_write_row;
+    }
+    spider->reset_sql_sql(SPIDER_SQL_TYPE_BULK_UPDATE_SQL);
+  }
+  DBUG_RETURN(0);
+
+error_write_row:
+  spider->bulk_tmp_table_end_bulk_insert();
+  spider->rm_bulk_tmp_table();
+  spider->reset_sql_sql(SPIDER_SQL_TYPE_BULK_UPDATE_SQL);
+error_mk_table:
+  DBUG_RETURN(error_num);
+}
+
+int spider_db_bulk_update_end(
+  ha_spider *spider,
+  ha_rows *dup_key_found
+) {
+  int error_num = 0, error_num2, roop_count;
+  THD *thd = spider->wide_handler->trx->thd;
+  SPIDER_SHARE *share = spider->share;
+  SPIDER_CONN *conn;
+  bool is_error = thd->is_error();
+  DBUG_ENTER("spider_db_bulk_update_end");
+
+  if (spider->bulk_tmp_table_created())
+  {
+    if ((error_num2 = spider->bulk_tmp_table_end_bulk_insert()))
+    {
+      error_num = error_num2;
+    }
+
+    if (!is_error)
+    {
+      if (error_num)
+        goto error_last_query;
+
+      if ((error_num = spider->bulk_tmp_table_rnd_init()))
+      {
+        goto error_rnd_init;
+      }
+
+      while (!(error_num = spider->bulk_tmp_table_rnd_next()))
+      {
+        for (
+          roop_count = spider_conn_link_idx_next(share->link_statuses,
+            spider->conn_link_idx, -1, share->link_count,
+            SPIDER_LINK_STATUS_RECOVERY);
+          roop_count < (int) share->link_count;
+          roop_count = spider_conn_link_idx_next(share->link_statuses,
+            spider->conn_link_idx, roop_count, share->link_count,
+            SPIDER_LINK_STATUS_RECOVERY)
+        ) {
+          conn = spider->conns[roop_count];
+          spider_db_handler *dbton_hdl = spider->dbton_handler[conn->dbton_id];
+          pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+          if (dbton_hdl->need_lock_before_set_sql_for_exec(
+            SPIDER_SQL_TYPE_BULK_UPDATE_SQL))
+          {
+            pthread_mutex_lock(&conn->mta_conn_mutex);
+            SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          }
+          if ((error_num = dbton_hdl->set_sql_for_exec(
+            SPIDER_SQL_TYPE_BULK_UPDATE_SQL, roop_count)))
+          {
+            if (dbton_hdl->need_lock_before_set_sql_for_exec(
+              SPIDER_SQL_TYPE_BULK_UPDATE_SQL))
+            {
+              SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+              pthread_mutex_unlock(&conn->mta_conn_mutex);
+            }
+            if (error_num == ER_SPIDER_COND_SKIP_NUM)
+            {
+              continue;
+            }
+            DBUG_RETURN(error_num);
+          }
+          if (!dbton_hdl->need_lock_before_set_sql_for_exec(
+            SPIDER_SQL_TYPE_BULK_UPDATE_SQL))
+          {
+            pthread_mutex_lock(&conn->mta_conn_mutex);
+            SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          }
+          if ((error_num = spider_db_query_for_bulk_update(
+            spider, conn, roop_count, dup_key_found)))
+          {
+            pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+            goto error_query;
+          }
+          pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+        }
+      }
+      if (error_num != HA_ERR_END_OF_FILE)
+        goto error_rnd_next;
+
+      spider->bulk_tmp_table_rnd_end();
+    }
+  }
+
+  if (!is_error)
+  {
+    if (!spider->sql_is_empty(SPIDER_SQL_TYPE_BULK_UPDATE_SQL))
+    {
+      for (
+        roop_count = spider_conn_link_idx_next(share->link_statuses,
+          spider->conn_link_idx, -1, share->link_count,
+          SPIDER_LINK_STATUS_RECOVERY);
+        roop_count < (int) share->link_count;
+        roop_count = spider_conn_link_idx_next(share->link_statuses,
+          spider->conn_link_idx, roop_count, share->link_count,
+          SPIDER_LINK_STATUS_RECOVERY)
+      ) {
+        conn = spider->conns[roop_count];
+        spider_db_handler *dbton_hdl = spider->dbton_handler[conn->dbton_id];
+        pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+        if (dbton_hdl->need_lock_before_set_sql_for_exec(
+          SPIDER_SQL_TYPE_BULK_UPDATE_SQL))
+        {
+          pthread_mutex_lock(&conn->mta_conn_mutex);
+          SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        }
+        if ((error_num = dbton_hdl->set_sql_for_exec(
+          SPIDER_SQL_TYPE_BULK_UPDATE_SQL, roop_count)))
+        {
+          if (dbton_hdl->need_lock_before_set_sql_for_exec(
+            SPIDER_SQL_TYPE_BULK_UPDATE_SQL))
+          {
+            SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+            pthread_mutex_unlock(&conn->mta_conn_mutex);
+          }
+          DBUG_RETURN(error_num);
+        }
+        if (!dbton_hdl->need_lock_before_set_sql_for_exec(
+          SPIDER_SQL_TYPE_BULK_UPDATE_SQL))
+        {
+          pthread_mutex_lock(&conn->mta_conn_mutex);
+          SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        }
+        if ((error_num = spider_db_query_for_bulk_update(
+          spider, conn, roop_count, dup_key_found)))
+        {
+          pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+          goto error_last_query;
+        }
+        pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+      }
+    }
+  }
+  spider->rm_bulk_tmp_table();
+  spider->reset_sql_sql(SPIDER_SQL_TYPE_BULK_UPDATE_SQL);
+  DBUG_RETURN(0);
+
+error_query:
+error_rnd_next:
+  spider->bulk_tmp_table_rnd_end();
+error_rnd_init:
+error_last_query:
+  spider->rm_bulk_tmp_table();
+  spider->reset_sql_sql(SPIDER_SQL_TYPE_BULK_UPDATE_SQL);
+  DBUG_RETURN(error_num);
+}
+
+int spider_db_bulk_update(
+  ha_spider *spider,
+  TABLE *table,
+  my_ptrdiff_t ptr_diff
+) {
+  int error_num;
+  DBUG_ENTER("spider_db_bulk_update");
+
+  if ((error_num = spider->append_update_sql(table, ptr_diff, TRUE)))
+    DBUG_RETURN(error_num);
+
+  if (
+    spider->sql_is_filled_up(SPIDER_SQL_TYPE_BULK_UPDATE_SQL) &&
+    (error_num = spider_db_bulk_update_size_limit(spider, table))
+  )
+    DBUG_RETURN(error_num);
+  DBUG_RETURN(0);
+}
+
+int spider_db_update(
+  ha_spider *spider,
+  TABLE *table,
+  const uchar *old_data
+) {
+  int error_num, roop_count;
+  SPIDER_SHARE *share = spider->share;
+  SPIDER_CONN *conn;
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  my_ptrdiff_t ptr_diff = PTR_BYTE_DIFF(old_data, table->record[0]);
+  DBUG_ENTER("spider_db_update");
+  if (result_list->bulk_update_mode)
+    DBUG_RETURN(spider_db_bulk_update(spider, table, ptr_diff));
+
+  if ((error_num = spider->append_update_sql(table, ptr_diff, FALSE)))
+    DBUG_RETURN(error_num);
+
+  for (
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, -1, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY);
+    roop_count < (int) share->link_count;
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, roop_count, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY)
+  ) {
+    conn = spider->conns[roop_count];
+    spider_db_handler *dbton_hdl = spider->dbton_handler[conn->dbton_id];
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100000
+    conn->ignore_dup_key = spider->wide_handler->ignore_dup_key;
+#endif
+    pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+    if (dbton_hdl->need_lock_before_set_sql_for_exec(
+      SPIDER_SQL_TYPE_UPDATE_SQL))
+    {
+      pthread_mutex_lock(&conn->mta_conn_mutex);
+      SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    }
+    if ((error_num = dbton_hdl->set_sql_for_exec(
+      SPIDER_SQL_TYPE_UPDATE_SQL, roop_count)))
+    {
+      if (dbton_hdl->need_lock_before_set_sql_for_exec(
+        SPIDER_SQL_TYPE_UPDATE_SQL))
+      {
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+      }
+      DBUG_RETURN(error_num);
+    }
+    if (!dbton_hdl->need_lock_before_set_sql_for_exec(
+      SPIDER_SQL_TYPE_UPDATE_SQL))
+    {
+      pthread_mutex_lock(&conn->mta_conn_mutex);
+      SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    }
+    conn->need_mon = &spider->need_mons[roop_count];
+    DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = TRUE;
+    conn->mta_conn_mutex_unlock_later = TRUE;
+    if ((error_num = spider_db_set_names(spider, conn, roop_count)))
+    {
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      if (
+        share->monitoring_kind[roop_count] &&
+        spider->need_mons[roop_count]
+      ) {
+        error_num = spider_ping_table_mon_from_table(
+            spider->wide_handler->trx,
+            spider->wide_handler->trx->thd,
+            share,
+            roop_count,
+            (uint32) share->monitoring_sid[roop_count],
+            share->table_name,
+            share->table_name_length,
+            spider->conn_link_idx[roop_count],
+            NULL,
+            0,
+            share->monitoring_kind[roop_count],
+            share->monitoring_limit[roop_count],
+            share->monitoring_flag[roop_count],
+            TRUE
+          );
+      }
+      DBUG_RETURN(error_num);
+    }
+    spider_conn_set_timeout_from_share(conn, roop_count,
+      spider->wide_handler->trx->thd,
+      share);
+    if (dbton_hdl->execute_sql(
+      SPIDER_SQL_TYPE_UPDATE_SQL,
+      conn,
+      -1,
+      &spider->need_mons[roop_count])
+    ) {
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      error_num = spider_db_errorno(conn);
+      if (
+        error_num != ER_DUP_ENTRY &&
+        error_num != ER_DUP_KEY &&
+        error_num != HA_ERR_FOUND_DUPP_KEY &&
+        share->monitoring_kind[roop_count] &&
+        spider->need_mons[roop_count]
+      ) {
+        error_num = spider_ping_table_mon_from_table(
+            spider->wide_handler->trx,
+            spider->wide_handler->trx->thd,
+            share,
+            roop_count,
+            (uint32) share->monitoring_sid[roop_count],
+            share->table_name,
+            share->table_name_length,
+            spider->conn_link_idx[roop_count],
+            NULL,
+            0,
+            share->monitoring_kind[roop_count],
+            share->monitoring_limit[roop_count],
+            share->monitoring_flag[roop_count],
+            TRUE
+          );
+      }
+      DBUG_RETURN(error_num);
+    }
+
+    if (
+      !conn->db_conn->affected_rows() &&
+      share->link_statuses[roop_count] == SPIDER_LINK_STATUS_RECOVERY &&
+      spider->pk_update
+    ) {
+      /* insert */
+      if ((error_num = dbton_hdl->append_insert_for_recovery(
+        SPIDER_SQL_TYPE_INSERT_SQL, roop_count)))
+      {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        DBUG_RETURN(error_num);
+      }
+      spider_conn_set_timeout_from_share(conn, roop_count,
+        spider->wide_handler->trx->thd,
+        share);
+      if (dbton_hdl->execute_sql(
+        SPIDER_SQL_TYPE_INSERT_SQL,
+        conn,
+        -1,
+        &spider->need_mons[roop_count])
+      ) {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        error_num = spider_db_errorno(conn);
+        if (
+          error_num != ER_DUP_ENTRY &&
+          error_num != ER_DUP_KEY &&
+          error_num != HA_ERR_FOUND_DUPP_KEY &&
+          share->monitoring_kind[roop_count] &&
+          spider->need_mons[roop_count]
+        ) {
+          error_num = spider_ping_table_mon_from_table(
+              spider->wide_handler->trx,
+              spider->wide_handler->trx->thd,
+              share,
+              roop_count,
+              (uint32) share->monitoring_sid[roop_count],
+              share->table_name,
+              share->table_name_length,
+              spider->conn_link_idx[roop_count],
+              NULL,
+              0,
+              share->monitoring_kind[roop_count],
+              share->monitoring_limit[roop_count],
+              share->monitoring_flag[roop_count],
+              TRUE
+            );
+        }
+        DBUG_RETURN(error_num);
+      }
+    }
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+    result_list->update_sqls[roop_count].length(0);
+  }
+  spider->reset_sql_sql(SPIDER_SQL_TYPE_UPDATE_SQL);
+  DBUG_RETURN(0);
+}
+
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS_WITH_HS
+int spider_db_direct_update(
+  ha_spider *spider,
+  TABLE *table,
+  KEY_MULTI_RANGE *ranges,
+  uint range_count,
+  ha_rows *update_rows,
+  ha_rows *found_rows
+) {
+  int error_num, roop_count;
+  SPIDER_SHARE *share = spider->share;
+  SPIDER_CONN *conn;
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  bool counted = FALSE;
+  st_select_lex *select_lex;
+  longlong select_limit;
+  longlong offset_limit;
+  DBUG_ENTER("spider_db_direct_update");
+
+  spider_set_result_list_param(spider);
+  result_list->finish_flg = FALSE;
+  DBUG_PRINT("info", ("spider do_direct_update=%s",
+    spider->do_direct_update ? "TRUE" : "FALSE"));
+  DBUG_PRINT("info", ("spider direct_update_kinds=%u",
+    spider->direct_update_kinds));
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+    (
+      spider->do_direct_update &&
+      (spider->direct_update_kinds & SPIDER_SQL_KIND_SQL)
+    ) ||
+    (
+      !spider->do_direct_update &&
+#endif
+      (spider->sql_kinds & SPIDER_SQL_KIND_SQL)
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+    )
+#endif
+  ) {
+#endif
+    if ((error_num = spider->append_update_sql_part()))
+      DBUG_RETURN(error_num);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  }
+#endif
+
+/*
+  SQL access -> SQL remote access
+    !spider->do_direct_update &&
+    (spider->sql_kinds & SPIDER_SQL_KIND_SQL)
+
+  SQL access -> SQL remote access with dirct_update
+    spider->do_direct_update &&
+    spider->direct_update_kinds == SPIDER_SQL_KIND_SQL &&
+    spider->wide_handler->direct_update_fields
+
+  Handlersocket access -> SQL remote access with dirct_update
+    spider->do_direct_update &&
+    (spider->direct_update_kinds & SPIDER_SQL_KIND_SQL)
+
+  Handlersocket access -> Handlersocket access
+    spider->do_direct_update &&
+    (spider->direct_update_kinds & SPIDER_SQL_KIND_HS)
+*/
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (spider->hs_increment || spider->hs_decrement)
+  {
+    if (
+      (spider->direct_update_kinds & SPIDER_SQL_KIND_SQL) &&
+      (error_num = spider->append_increment_update_set_sql_part())
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  } else {
+#endif
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+    if (!spider->do_direct_update)
+    {
+#endif
+      if (
+        (spider->sql_kinds & SPIDER_SQL_KIND_SQL) &&
+        (error_num = spider->append_update_set_sql_part())
+      ) {
+        DBUG_RETURN(error_num);
+      }
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+    } else {
+      if (
+        (spider->direct_update_kinds & SPIDER_SQL_KIND_SQL) &&
+        (error_num = spider->append_direct_update_set_sql_part())
+      ) {
+        DBUG_RETURN(error_num);
+      }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      if (
+        (spider->direct_update_kinds & SPIDER_SQL_KIND_HS) &&
+        (error_num = spider->append_direct_update_set_hs_part())
+      ) {
+        DBUG_RETURN(error_num);
+      }
+#endif
+    }
+#endif
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  }
+#endif
+
+  result_list->desc_flg = FALSE;
+  result_list->sorted = TRUE;
+  if (spider->active_index == MAX_KEY)
+    result_list->key_info = NULL;
+  else
+    result_list->key_info = &table->key_info[spider->active_index];
+  spider_get_select_limit(spider, &select_lex, &select_limit, &offset_limit);
+  result_list->limit_num =
+    result_list->internal_limit >= select_limit ?
+    select_limit : result_list->internal_limit;
+  result_list->internal_offset += offset_limit;
+  if (spider->direct_update_kinds & SPIDER_SQL_KIND_SQL)
+  {
+    if (
+      (error_num = spider->append_key_where_sql_part(
+        (ranges && ranges->start_key.key) ? &ranges->start_key : NULL,
+        (ranges && ranges->end_key.key) ? &ranges->end_key : NULL,
+        SPIDER_SQL_TYPE_UPDATE_SQL)) ||
+      (error_num = spider->
+        append_key_order_for_direct_order_limit_with_alias_sql_part(
+        NULL, 0, SPIDER_SQL_TYPE_UPDATE_SQL)) ||
+      (error_num = spider->append_limit_sql_part(
+        result_list->internal_offset, result_list->limit_num,
+        SPIDER_SQL_TYPE_UPDATE_SQL))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (spider->direct_update_kinds & SPIDER_SQL_KIND_HS)
+  {
+    if (
+      (error_num = spider->append_key_where_hs_part(
+        (ranges && ranges->start_key.key) ? &ranges->start_key : NULL,
+        (ranges && ranges->end_key.key) ? &ranges->end_key : NULL,
+        SPIDER_SQL_TYPE_UPDATE_HS)) ||
+      (error_num = spider->append_limit_hs_part(
+        result_list->internal_offset, result_list->limit_num,
+        SPIDER_SQL_TYPE_UPDATE_HS))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+#endif
+
+  for (
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, -1, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY);
+    roop_count < (int) share->link_count;
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, roop_count, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY)
+  ) {
+    ulong sql_type;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    if (!spider_bit_is_set(spider->do_hs_direct_update, roop_count))
+    {
+#endif
+      DBUG_PRINT("info", ("spider exec sql"));
+      conn = spider->conns[roop_count];
+      sql_type = SPIDER_SQL_TYPE_UPDATE_SQL;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    } else {
+      DBUG_PRINT("info", ("spider exec hs"));
+      conn = spider->hs_w_conns[roop_count];
+      sql_type = SPIDER_SQL_TYPE_UPDATE_HS;
+    }
+#endif
+    spider_db_handler *dbton_hdl = spider->dbton_handler[conn->dbton_id];
+    pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+    if (dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+    {
+      pthread_mutex_lock(&conn->mta_conn_mutex);
+      SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    }
+    if ((error_num = dbton_hdl->set_sql_for_exec(sql_type, roop_count)))
+    {
+      if (dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+      {
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+      }
+      DBUG_RETURN(error_num);
+    }
+    if (!dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+    {
+      pthread_mutex_lock(&conn->mta_conn_mutex);
+      SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    }
+#ifdef HA_CAN_BULK_ACCESS
+    if (spider->is_bulk_access_clone)
+    {
+      spider->connection_ids[roop_count] = conn->connection_id;
+      spider_trx_add_bulk_access_conn(spider->wide_handler->trx, conn);
+    } else {
+#endif
+      conn->need_mon = &spider->need_mons[roop_count];
+      DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = TRUE;
+      conn->mta_conn_mutex_unlock_later = TRUE;
+      if ((error_num = spider_db_set_names(spider, conn, roop_count)))
+      {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        if (
+          share->monitoring_kind[roop_count] &&
+          spider->need_mons[roop_count]
+        ) {
+          error_num = spider_ping_table_mon_from_table(
+              spider->wide_handler->trx,
+              spider->wide_handler->trx->thd,
+              share,
+              roop_count,
+              (uint32) share->monitoring_sid[roop_count],
+              share->table_name,
+              share->table_name_length,
+              spider->conn_link_idx[roop_count],
+              NULL,
+              0,
+              share->monitoring_kind[roop_count],
+              share->monitoring_limit[roop_count],
+              share->monitoring_flag[roop_count],
+              TRUE
+            );
+        }
+        DBUG_RETURN(error_num);
+      }
+      spider_conn_set_timeout_from_share(conn, roop_count,
+        spider->wide_handler->trx->thd,
+        share);
+      if (
+        (error_num = dbton_hdl->execute_sql(
+          sql_type,
+          conn,
+          -1,
+          &spider->need_mons[roop_count])
+        ) &&
+        (error_num != HA_ERR_FOUND_DUPP_KEY || !spider->ignore_dup_key)
+      ) {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        error_num = spider_db_errorno(conn);
+        if (
+          error_num != ER_DUP_ENTRY &&
+          error_num != ER_DUP_KEY &&
+          error_num != HA_ERR_FOUND_DUPP_KEY &&
+          share->monitoring_kind[roop_count] &&
+          spider->need_mons[roop_count]
+        ) {
+          error_num = spider_ping_table_mon_from_table(
+              spider->wide_handler->trx,
+              spider->wide_handler->trx->thd,
+              share,
+              roop_count,
+              (uint32) share->monitoring_sid[roop_count],
+              share->table_name,
+              share->table_name_length,
+              spider->conn_link_idx[roop_count],
+              NULL,
+              0,
+              share->monitoring_kind[roop_count],
+              share->monitoring_limit[roop_count],
+              share->monitoring_flag[roop_count],
+              TRUE
+            );
+        }
+        DBUG_RETURN(error_num);
+      }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      if (!spider_bit_is_set(spider->do_hs_direct_update, roop_count))
+      {
+#endif
+        if (!counted)
+        {
+          *update_rows = spider->conns[roop_count]->db_conn->affected_rows();
+          DBUG_PRINT("info", ("spider update_rows = %llu", *update_rows));
+          *found_rows = spider->conns[roop_count]->db_conn->matched_rows();
+          DBUG_PRINT("info", ("spider found_rows = %llu", *found_rows));
+          counted = TRUE;
+        }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      } else {
+        SPIDER_DB_RESULT *result;
+        if (spider_bit_is_set(spider->db_request_phase, roop_count))
+        {
+          spider_clear_bit(spider->db_request_phase, roop_count);
+        }
+        st_spider_db_request_key request_key;
+        request_key.spider_thread_id =
+          spider->wide_handler->trx->spider_thread_id;
+        request_key.query_id = spider->wide_handler->trx->thd->query_id;
+        request_key.handler = spider;
+        request_key.request_id = spider->db_request_id[roop_count];
+        request_key.next = NULL;
+        if ((result = conn->db_conn->use_result(spider, &request_key,
+          &error_num)))
+        {
+          if (!counted)
+          {
+            *update_rows = conn->db_conn->affected_rows();
+            DBUG_PRINT("info", ("spider update_rows = %llu", *update_rows));
+            *found_rows = conn->db_conn->matched_rows();
+            DBUG_PRINT("info", ("spider found_rows = %llu", *found_rows));
+            counted = TRUE;
+          }
+          result->free_result();
+          delete result;
+        } else {
+          if (!error_num)
+          {
+            error_num = spider_db_errorno(conn);
+          }
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+          DBUG_RETURN(error_num);
+        }
+      }
+#endif
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+#ifdef HA_CAN_BULK_ACCESS
+    }
+#endif
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+  }
+  spider->reset_sql_sql(SPIDER_SQL_TYPE_UPDATE_SQL);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  spider->reset_hs_sql(SPIDER_SQL_TYPE_UPDATE_HS);
+  spider->reset_hs_keys(SPIDER_SQL_TYPE_UPDATE_HS);
+  spider->reset_hs_upds(SPIDER_SQL_TYPE_UPDATE_HS);
+#endif
+  DBUG_RETURN(0);
+}
+#else
+int spider_db_direct_update(
+  ha_spider *spider,
+  TABLE *table,
+  ha_rows *update_rows,
+  ha_rows *found_rows
+) {
+  int error_num, roop_count;
+  SPIDER_SHARE *share = spider->share;
+  SPIDER_CONN *conn;
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  bool counted = FALSE;
+  st_select_lex *select_lex;
+  longlong select_limit;
+  longlong offset_limit;
+  DBUG_ENTER("spider_db_direct_update");
+
+  spider_set_result_list_param(spider);
+  result_list->finish_flg = FALSE;
+  DBUG_PRINT("info", ("spider do_direct_update=%s",
+    spider->do_direct_update ? "TRUE" : "FALSE"));
+  DBUG_PRINT("info", ("spider direct_update_kinds=%u",
+    spider->direct_update_kinds));
+  if ((error_num = spider->append_update_sql_part()))
+    DBUG_RETURN(error_num);
+
+/*
+  SQL access -> SQL remote access
+    !spider->do_direct_update &&
+    (spider->sql_kinds & SPIDER_SQL_KIND_SQL)
+
+  SQL access -> SQL remote access with dirct_update
+    spider->do_direct_update &&
+    spider->direct_update_kinds == SPIDER_SQL_KIND_SQL &&
+    spider->wide_handler->direct_update_fields
+*/
+
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  if (!spider->do_direct_update)
+  {
+#endif
+    if (
+      (spider->sql_kinds & SPIDER_SQL_KIND_SQL) &&
+      (error_num = spider->append_update_set_sql_part())
+    ) {
+      DBUG_RETURN(error_num);
+    }
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  } else {
+    if (
+      (spider->direct_update_kinds & SPIDER_SQL_KIND_SQL) &&
+      (error_num = spider->append_direct_update_set_sql_part())
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+#endif
+
+  result_list->desc_flg = FALSE;
+  result_list->sorted = TRUE;
+  if (spider->active_index == MAX_KEY)
+    result_list->key_info = NULL;
+  else
+    result_list->key_info = &table->key_info[spider->active_index];
+  spider_get_select_limit(spider, &select_lex, &select_limit, &offset_limit);
+  result_list->limit_num =
+    result_list->internal_limit >= select_limit ?
+    select_limit : result_list->internal_limit;
+  result_list->internal_offset += offset_limit;
+  if (spider->direct_update_kinds & SPIDER_SQL_KIND_SQL)
+  {
+    if (
+      (error_num = spider->append_key_where_sql_part(
+        NULL,
+        NULL,
+        SPIDER_SQL_TYPE_UPDATE_SQL)) ||
+      (error_num = spider->
+        append_key_order_for_direct_order_limit_with_alias_sql_part(
+        NULL, 0, SPIDER_SQL_TYPE_UPDATE_SQL)) ||
+      (error_num = spider->append_limit_sql_part(
+        result_list->internal_offset, result_list->limit_num,
+        SPIDER_SQL_TYPE_UPDATE_SQL))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+
+  for (
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, -1, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY);
+    roop_count < (int) share->link_count;
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, roop_count, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY)
+  ) {
+    ulong sql_type;
+    DBUG_PRINT("info", ("spider exec sql"));
+    conn = spider->conns[roop_count];
+    sql_type = SPIDER_SQL_TYPE_UPDATE_SQL;
+    spider_db_handler *dbton_hdl = spider->dbton_handler[conn->dbton_id];
+    pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+    if (dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+    {
+      pthread_mutex_lock(&conn->mta_conn_mutex);
+      SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    }
+    if ((error_num = dbton_hdl->set_sql_for_exec(sql_type, roop_count)))
+    {
+      if (dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+      {
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+      }
+      DBUG_RETURN(error_num);
+    }
+    if (!dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+    {
+      pthread_mutex_lock(&conn->mta_conn_mutex);
+      SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    }
+#ifdef HA_CAN_BULK_ACCESS
+    if (spider->is_bulk_access_clone)
+    {
+      spider->connection_ids[roop_count] = conn->connection_id;
+      spider_trx_add_bulk_access_conn(spider->wide_handler->trx, conn);
+    } else {
+#endif
+      conn->need_mon = &spider->need_mons[roop_count];
+      DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = TRUE;
+      conn->mta_conn_mutex_unlock_later = TRUE;
+      if ((error_num = spider_db_set_names(spider, conn, roop_count)))
+      {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        if (
+          share->monitoring_kind[roop_count] &&
+          spider->need_mons[roop_count]
+        ) {
+          error_num = spider_ping_table_mon_from_table(
+              spider->wide_handler->trx,
+              spider->wide_handler->trx->thd,
+              share,
+              roop_count,
+              (uint32) share->monitoring_sid[roop_count],
+              share->table_name,
+              share->table_name_length,
+              spider->conn_link_idx[roop_count],
+              NULL,
+              0,
+              share->monitoring_kind[roop_count],
+              share->monitoring_limit[roop_count],
+              share->monitoring_flag[roop_count],
+              TRUE
+            );
+        }
+        DBUG_RETURN(error_num);
+      }
+      spider_conn_set_timeout_from_share(conn, roop_count,
+        spider->wide_handler->trx->thd,
+        share);
+      if (
+        (error_num = dbton_hdl->execute_sql(
+          sql_type,
+          conn,
+          -1,
+          &spider->need_mons[roop_count])
+        ) &&
+        (error_num != HA_ERR_FOUND_DUPP_KEY ||
+          !spider->wide_handler->ignore_dup_key)
+      ) {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        error_num = spider_db_errorno(conn);
+        if (
+          error_num != ER_DUP_ENTRY &&
+          error_num != ER_DUP_KEY &&
+          error_num != HA_ERR_FOUND_DUPP_KEY &&
+          share->monitoring_kind[roop_count] &&
+          spider->need_mons[roop_count]
+        ) {
+          error_num = spider_ping_table_mon_from_table(
+              spider->wide_handler->trx,
+              spider->wide_handler->trx->thd,
+              share,
+              roop_count,
+              (uint32) share->monitoring_sid[roop_count],
+              share->table_name,
+              share->table_name_length,
+              spider->conn_link_idx[roop_count],
+              NULL,
+              0,
+              share->monitoring_kind[roop_count],
+              share->monitoring_limit[roop_count],
+              share->monitoring_flag[roop_count],
+              TRUE
+            );
+        }
+        DBUG_RETURN(error_num);
+      }
+      if (!counted)
+      {
+        *update_rows = spider->conns[roop_count]->db_conn->affected_rows();
+        DBUG_PRINT("info", ("spider update_rows = %llu", *update_rows));
+        *found_rows = spider->conns[roop_count]->db_conn->matched_rows();
+        DBUG_PRINT("info", ("spider found_rows = %llu", *found_rows));
+        counted = TRUE;
+      }
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+#ifdef HA_CAN_BULK_ACCESS
+    }
+#endif
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+  }
+  spider->reset_sql_sql(SPIDER_SQL_TYPE_UPDATE_SQL);
+  DBUG_RETURN(0);
+}
+#endif
+#endif
+
+#ifdef HA_CAN_BULK_ACCESS
+int spider_db_bulk_direct_update(
+  ha_spider *spider,
+  ha_rows *update_rows,
+  ha_rows *found_rows
+) {
+  int error_num = 0, roop_count, tmp_error_num;
+  SPIDER_SHARE *share = spider->share;
+  SPIDER_CONN *conn;
+  bool counted = FALSE;
+  DBUG_ENTER("spider_db_bulk_direct_update");
+  for (
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, -1, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY);
+    roop_count < (int) share->link_count;
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, roop_count, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY)
+  ) {
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    if (!spider_bit_is_set(spider->do_hs_direct_update, roop_count))
+    {
+#endif
+      DBUG_PRINT("info", ("spider exec sql"));
+      conn = spider->conns[roop_count];
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    } else {
+      DBUG_PRINT("info", ("spider exec hs"));
+      conn = spider->hs_w_conns[roop_count];
+    }
+#endif
+    pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+    pthread_mutex_lock(&conn->mta_conn_mutex);
+    SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = TRUE;
+    conn->mta_conn_mutex_unlock_later = TRUE;
+    if ((tmp_error_num = spider_db_bulk_open_handler(spider, conn,
+      roop_count)))
+    {
+      error_num = tmp_error_num;
+    }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    if (!spider_bit_is_set(spider->do_hs_direct_update, roop_count))
+    {
+#endif
+      if (!counted)
+      {
+        *update_rows = spider->conns[roop_count]->db_conn->affected_rows();
+        DBUG_PRINT("info", ("spider update_rows = %llu", *update_rows));
+        *found_rows = spider->conns[roop_count]->db_conn->matched_rows();
+        DBUG_PRINT("info", ("spider found_rows = %llu", *found_rows));
+        counted = TRUE;
+      }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    } else {
+      SPIDER_DB_RESULT *result;
+      if (spider_bit_is_set(spider->db_request_phase, roop_count))
+      {
+        spider_clear_bit(spider->db_request_phase, roop_count);
+      }
+      st_spider_db_request_key request_key;
+      request_key.spider_thread_id =
+        spider->wide_handler->trx->spider_thread_id;
+      request_key.query_id = spider->wide_handler->trx->thd->query_id;
+      request_key.handler = spider;
+      request_key.request_id = spider->db_request_id[roop_count];
+      request_key.next = NULL;
+      if ((result = conn->db_conn->use_result(spider, &request_key,
+        &error_num)))
+      {
+        if (!counted)
+        {
+          *update_rows = conn->db_conn->affected_rows();
+          DBUG_PRINT("info", ("spider update_rows = %llu", *update_rows));
+          *found_rows = conn->db_conn->matched_rows();
+          DBUG_PRINT("info", ("spider found_rows = %llu", *found_rows));
+          counted = TRUE;
+        }
+        result->free_result();
+        delete result;
+      } else {
+        if (!error_num)
+        {
+          error_num = spider_db_errorno(conn);
+        }
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        DBUG_RETURN(error_num);
+      }
+    }
+#endif
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+  }
+  DBUG_RETURN(error_num);
+}
+#endif
+
+int spider_db_bulk_delete(
+  ha_spider *spider,
+  TABLE *table,
+  my_ptrdiff_t ptr_diff
+) {
+  int error_num;
+  DBUG_ENTER("spider_db_bulk_delete");
+
+  if ((error_num = spider->append_delete_sql(table, ptr_diff, TRUE)))
+    DBUG_RETURN(error_num);
+
+  if (
+    spider->sql_is_filled_up(SPIDER_SQL_TYPE_BULK_UPDATE_SQL) &&
+    (error_num = spider_db_bulk_update_size_limit(spider, table))
+  )
+    DBUG_RETURN(error_num);
+  DBUG_RETURN(0);
+}
+
+int spider_db_delete(
+  ha_spider *spider,
+  TABLE *table,
+  const uchar *buf
+) {
+  int error_num, roop_count;
+  SPIDER_SHARE *share = spider->share;
+  SPIDER_CONN *conn;
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  my_ptrdiff_t ptr_diff = PTR_BYTE_DIFF(buf, table->record[0]);
+  DBUG_ENTER("spider_db_delete");
+  if (result_list->bulk_update_mode)
+    DBUG_RETURN(spider_db_bulk_delete(spider, table, ptr_diff));
+
+  if ((error_num = spider->append_delete_sql(table, ptr_diff, FALSE)))
+    DBUG_RETURN(error_num);
+
+  for (
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, -1, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY);
+    roop_count < (int) share->link_count;
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, roop_count, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY)
+  ) {
+    conn = spider->conns[roop_count];
+    spider_db_handler *dbton_hdl = spider->dbton_handler[conn->dbton_id];
+    pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+    if (dbton_hdl->need_lock_before_set_sql_for_exec(
+      SPIDER_SQL_TYPE_DELETE_SQL))
+    {
+      pthread_mutex_lock(&conn->mta_conn_mutex);
+      SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    }
+    if ((error_num = dbton_hdl->set_sql_for_exec(
+      SPIDER_SQL_TYPE_DELETE_SQL, roop_count)))
+    {
+      if (dbton_hdl->need_lock_before_set_sql_for_exec(
+        SPIDER_SQL_TYPE_DELETE_SQL))
+      {
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+      }
+      DBUG_RETURN(error_num);
+    }
+    if (!dbton_hdl->need_lock_before_set_sql_for_exec(
+      SPIDER_SQL_TYPE_DELETE_SQL))
+    {
+      pthread_mutex_lock(&conn->mta_conn_mutex);
+      SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    }
+    DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = TRUE;
+    conn->mta_conn_mutex_unlock_later = TRUE;
+    if ((error_num = spider_db_query_with_set_names(
+      SPIDER_SQL_TYPE_DELETE_SQL, spider, conn, roop_count)))
+    {
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      DBUG_RETURN(error_num);
+    }
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+    result_list->update_sqls[roop_count].length(0);
+  }
+  if ((error_num = spider->reset_sql_sql(SPIDER_SQL_TYPE_DELETE_SQL)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS_WITH_HS
+int spider_db_direct_delete(
+  ha_spider *spider,
+  TABLE *table,
+  KEY_MULTI_RANGE *ranges,
+  uint range_count,
+  ha_rows *delete_rows
+) {
+  int error_num, roop_count;
+  SPIDER_SHARE *share = spider->share;
+  SPIDER_CONN *conn;
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  bool counted = FALSE;
+  st_select_lex *select_lex;
+  longlong select_limit;
+  longlong offset_limit;
+  DBUG_ENTER("spider_db_direct_delete");
+
+  spider_set_result_list_param(spider);
+  result_list->finish_flg = FALSE;
+  result_list->desc_flg = FALSE;
+  result_list->sorted = TRUE;
+  if (spider->active_index == MAX_KEY)
+    result_list->key_info = NULL;
+  else
+    result_list->key_info = &table->key_info[spider->active_index];
+  spider_get_select_limit(spider, &select_lex, &select_limit, &offset_limit);
+  result_list->limit_num =
+    result_list->internal_limit >= select_limit ?
+    select_limit : result_list->internal_limit;
+  result_list->internal_offset += offset_limit;
+/*
+  result_list->limit_num =
+    result_list->internal_limit >= result_list->split_read ?
+    result_list->split_read : result_list->internal_limit;
+*/
+  if (spider->direct_update_kinds & SPIDER_SQL_KIND_SQL)
+  {
+    if (
+      (error_num = spider->append_delete_sql_part()) ||
+      (error_num = spider->append_from_sql_part(SPIDER_SQL_TYPE_DELETE_SQL))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+    spider->set_where_pos_sql(SPIDER_SQL_TYPE_DELETE_SQL);
+    if (
+      (error_num = spider->append_key_where_sql_part(
+        (ranges && ranges->start_key.key) ? &ranges->start_key : NULL,
+        (ranges && ranges->end_key.key) ? &ranges->end_key : NULL,
+        SPIDER_SQL_TYPE_DELETE_SQL)) ||
+      (error_num = spider->
+        append_key_order_for_direct_order_limit_with_alias_sql_part(
+        NULL, 0, SPIDER_SQL_TYPE_DELETE_SQL)) ||
+      (error_num = spider->append_limit_sql_part(
+        result_list->internal_offset, result_list->limit_num,
+        SPIDER_SQL_TYPE_DELETE_SQL))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (spider->direct_update_kinds & SPIDER_SQL_KIND_HS)
+  {
+    if (
+      (error_num = spider->append_key_where_hs_part(
+        (ranges && ranges->start_key.key) ? &ranges->start_key : NULL,
+        (ranges && ranges->end_key.key) ? &ranges->end_key : NULL,
+        SPIDER_SQL_TYPE_DELETE_HS)) ||
+      (error_num = spider->append_limit_hs_part(
+        result_list->internal_offset, result_list->limit_num,
+        SPIDER_SQL_TYPE_DELETE_HS))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+#endif
+
+  for (
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, -1, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY);
+    roop_count < (int) share->link_count;
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, roop_count, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY)
+  ) {
+    ulong sql_type;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    if (!spider_bit_is_set(spider->do_hs_direct_update, roop_count))
+    {
+#endif
+      DBUG_PRINT("info", ("spider exec sql"));
+      conn = spider->conns[roop_count];
+      sql_type = SPIDER_SQL_TYPE_DELETE_SQL;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    } else {
+      DBUG_PRINT("info", ("spider exec hs"));
+      conn = spider->hs_w_conns[roop_count];
+      sql_type = SPIDER_SQL_TYPE_DELETE_HS;
+    }
+#endif
+    spider_db_handler *dbton_hdl = spider->dbton_handler[conn->dbton_id];
+    pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+    if (dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+    {
+      pthread_mutex_lock(&conn->mta_conn_mutex);
+      SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    }
+    if ((error_num = dbton_hdl->set_sql_for_exec(sql_type, roop_count)))
+    {
+      if (dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+      {
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+      }
+      DBUG_RETURN(error_num);
+    }
+    if (!dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+    {
+      pthread_mutex_lock(&conn->mta_conn_mutex);
+      SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    }
+#ifdef HA_CAN_BULK_ACCESS
+    if (spider->is_bulk_access_clone)
+    {
+      spider->connection_ids[roop_count] = conn->connection_id;
+      spider_trx_add_bulk_access_conn(spider->wide_handler->trx, conn);
+    } else {
+#endif
+      conn->need_mon = &spider->need_mons[roop_count];
+      DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = TRUE;
+      conn->mta_conn_mutex_unlock_later = TRUE;
+      if ((error_num = spider_db_set_names(spider, conn, roop_count)))
+      {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        if (
+          share->monitoring_kind[roop_count] &&
+          spider->need_mons[roop_count]
+        ) {
+          error_num = spider_ping_table_mon_from_table(
+              spider->wide_handler->trx,
+              spider->wide_handler->trx->thd,
+              share,
+              roop_count,
+              (uint32) share->monitoring_sid[roop_count],
+              share->table_name,
+              share->table_name_length,
+              spider->conn_link_idx[roop_count],
+              NULL,
+              0,
+              share->monitoring_kind[roop_count],
+              share->monitoring_limit[roop_count],
+              share->monitoring_flag[roop_count],
+              TRUE
+            );
+        }
+        DBUG_RETURN(error_num);
+      }
+      spider_conn_set_timeout_from_share(conn, roop_count,
+        spider->wide_handler->trx->thd,
+        share);
+      if (dbton_hdl->execute_sql(
+        sql_type,
+        conn,
+        -1,
+        &spider->need_mons[roop_count])
+      ) {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        error_num = spider_db_errorno(conn);
+        if (
+          share->monitoring_kind[roop_count] &&
+          spider->need_mons[roop_count]
+        ) {
+          error_num = spider_ping_table_mon_from_table(
+              spider->wide_handler->trx,
+              spider->wide_handler->trx->thd,
+              share,
+              roop_count,
+              (uint32) share->monitoring_sid[roop_count],
+              share->table_name,
+              share->table_name_length,
+              spider->conn_link_idx[roop_count],
+              NULL,
+              0,
+              share->monitoring_kind[roop_count],
+              share->monitoring_limit[roop_count],
+              share->monitoring_flag[roop_count],
+              TRUE
+            );
+        }
+        DBUG_RETURN(error_num);
+      }
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      if (!spider_bit_is_set(spider->do_hs_direct_update, roop_count))
+      {
+#endif
+        if (!counted)
+        {
+          *delete_rows = spider->conns[roop_count]->db_conn->affected_rows();
+          DBUG_PRINT("info", ("spider delete_rows = %llu", *delete_rows));
+          counted = TRUE;
+        }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      } else {
+        SPIDER_DB_RESULT *result;
+        if (spider_bit_is_set(spider->db_request_phase, roop_count))
+        {
+          spider_clear_bit(spider->db_request_phase, roop_count);
+        }
+        st_spider_db_request_key request_key;
+        request_key.spider_thread_id =
+          spider->wide_handler->trx->spider_thread_id;
+        request_key.query_id = spider->wide_handler->trx->thd->query_id;
+        request_key.handler = spider;
+        request_key.request_id = spider->db_request_id[roop_count];
+        request_key.next = NULL;
+        if ((result = conn->db_conn->use_result(spider, &request_key,
+          &error_num)))
+        {
+          if (!counted)
+          {
+            *delete_rows = conn->db_conn->affected_rows();
+            DBUG_PRINT("info", ("spider delete_rows = %llu", *delete_rows));
+            counted = TRUE;
+          }
+          result->free_result();
+          delete result;
+        } else {
+          if (!error_num)
+          {
+            error_num = spider_db_errorno(conn);
+          }
+          DBUG_RETURN(error_num);
+        }
+      }
+#endif
+#ifdef HA_CAN_BULK_ACCESS
+    }
+#endif
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+  }
+  int error_num2 = 0;
+  if (spider->direct_update_kinds & SPIDER_SQL_KIND_SQL)
+  {
+    if ((error_num = spider->reset_sql_sql(SPIDER_SQL_TYPE_DELETE_SQL)))
+      error_num2 = error_num;
+  }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (spider->direct_update_kinds & SPIDER_SQL_KIND_HS)
+  {
+    if ((error_num = spider->reset_hs_sql(SPIDER_SQL_TYPE_DELETE_HS)))
+      error_num2 = error_num;
+    if ((error_num = spider->reset_hs_keys(SPIDER_SQL_TYPE_DELETE_HS)))
+      error_num2 = error_num;
+  }
+#endif
+  DBUG_RETURN(error_num2);
+}
+#else
+int spider_db_direct_delete(
+  ha_spider *spider,
+  TABLE *table,
+  ha_rows *delete_rows
+) {
+  int error_num, roop_count;
+  SPIDER_SHARE *share = spider->share;
+  SPIDER_CONN *conn;
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  bool counted = FALSE;
+  st_select_lex *select_lex;
+  longlong select_limit;
+  longlong offset_limit;
+  DBUG_ENTER("spider_db_direct_delete");
+
+  spider_set_result_list_param(spider);
+  result_list->finish_flg = FALSE;
+  result_list->desc_flg = FALSE;
+  result_list->sorted = TRUE;
+  if (spider->active_index == MAX_KEY)
+    result_list->key_info = NULL;
+  else
+    result_list->key_info = &table->key_info[spider->active_index];
+  spider_get_select_limit(spider, &select_lex, &select_limit, &offset_limit);
+  result_list->limit_num =
+    result_list->internal_limit >= select_limit ?
+    select_limit : result_list->internal_limit;
+  result_list->internal_offset += offset_limit;
+  if (spider->direct_update_kinds & SPIDER_SQL_KIND_SQL)
+  {
+    if (
+      (error_num = spider->append_delete_sql_part()) ||
+      (error_num = spider->append_from_sql_part(SPIDER_SQL_TYPE_DELETE_SQL))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+    spider->set_where_pos_sql(SPIDER_SQL_TYPE_DELETE_SQL);
+    if (
+      (error_num = spider->append_key_where_sql_part(
+        NULL,
+        NULL,
+        SPIDER_SQL_TYPE_DELETE_SQL)) ||
+      (error_num = spider->
+        append_key_order_for_direct_order_limit_with_alias_sql_part(
+        NULL, 0, SPIDER_SQL_TYPE_DELETE_SQL)) ||
+      (error_num = spider->append_limit_sql_part(
+        result_list->internal_offset, result_list->limit_num,
+        SPIDER_SQL_TYPE_DELETE_SQL))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+  }
+
+  for (
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, -1, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY);
+    roop_count < (int) share->link_count;
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, roop_count, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY)
+  ) {
+    ulong sql_type;
+    DBUG_PRINT("info", ("spider exec sql"));
+    conn = spider->conns[roop_count];
+    sql_type = SPIDER_SQL_TYPE_DELETE_SQL;
+    spider_db_handler *dbton_hdl = spider->dbton_handler[conn->dbton_id];
+    pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+    if (dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+    {
+      pthread_mutex_lock(&conn->mta_conn_mutex);
+      SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    }
+    if ((error_num = dbton_hdl->set_sql_for_exec(sql_type, roop_count)))
+    {
+      if (dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+      {
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+      }
+      DBUG_RETURN(error_num);
+    }
+    if (!dbton_hdl->need_lock_before_set_sql_for_exec(sql_type))
+    {
+      pthread_mutex_lock(&conn->mta_conn_mutex);
+      SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    }
+#ifdef HA_CAN_BULK_ACCESS
+    if (spider->is_bulk_access_clone)
+    {
+      spider->connection_ids[roop_count] = conn->connection_id;
+      spider_trx_add_bulk_access_conn(spider->wide_handler->trx, conn);
+    } else {
+#endif
+      conn->need_mon = &spider->need_mons[roop_count];
+      DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = TRUE;
+      conn->mta_conn_mutex_unlock_later = TRUE;
+      if ((error_num = spider_db_set_names(spider, conn, roop_count)))
+      {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        if (
+          share->monitoring_kind[roop_count] &&
+          spider->need_mons[roop_count]
+        ) {
+          error_num = spider_ping_table_mon_from_table(
+              spider->wide_handler->trx,
+              spider->wide_handler->trx->thd,
+              share,
+              roop_count,
+              (uint32) share->monitoring_sid[roop_count],
+              share->table_name,
+              share->table_name_length,
+              spider->conn_link_idx[roop_count],
+              NULL,
+              0,
+              share->monitoring_kind[roop_count],
+              share->monitoring_limit[roop_count],
+              share->monitoring_flag[roop_count],
+              TRUE
+            );
+        }
+        DBUG_RETURN(error_num);
+      }
+      spider_conn_set_timeout_from_share(conn, roop_count,
+        spider->wide_handler->trx->thd,
+        share);
+      if (dbton_hdl->execute_sql(
+        sql_type,
+        conn,
+        -1,
+        &spider->need_mons[roop_count])
+      ) {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        error_num = spider_db_errorno(conn);
+        if (
+          share->monitoring_kind[roop_count] &&
+          spider->need_mons[roop_count]
+        ) {
+          error_num = spider_ping_table_mon_from_table(
+              spider->wide_handler->trx,
+              spider->wide_handler->trx->thd,
+              share,
+              roop_count,
+              (uint32) share->monitoring_sid[roop_count],
+              share->table_name,
+              share->table_name_length,
+              spider->conn_link_idx[roop_count],
+              NULL,
+              0,
+              share->monitoring_kind[roop_count],
+              share->monitoring_limit[roop_count],
+              share->monitoring_flag[roop_count],
+              TRUE
+            );
+        }
+        DBUG_RETURN(error_num);
+      }
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      if (!counted)
+      {
+        *delete_rows = spider->conns[roop_count]->db_conn->affected_rows();
+        DBUG_PRINT("info", ("spider delete_rows = %llu", *delete_rows));
+        counted = TRUE;
+      }
+#ifdef HA_CAN_BULK_ACCESS
+    }
+#endif
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+  }
+  int error_num2 = 0;
+  if (spider->direct_update_kinds & SPIDER_SQL_KIND_SQL)
+  {
+    if ((error_num = spider->reset_sql_sql(SPIDER_SQL_TYPE_DELETE_SQL)))
+      error_num2 = error_num;
+  }
+  DBUG_RETURN(error_num2);
+}
+#endif
+#endif
+
+int spider_db_delete_all_rows(
+  ha_spider *spider
+) {
+  int error_num, roop_count;
+  SPIDER_SHARE *share = spider->share;
+  SPIDER_CONN *conn;
+  DBUG_ENTER("spider_db_delete_all_rows");
+  if ((error_num = spider->append_delete_all_rows_sql_part(
+    SPIDER_SQL_TYPE_DELETE_SQL)))
+    DBUG_RETURN(error_num);
+
+  for (
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, -1, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY);
+    roop_count < (int) share->link_count;
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, roop_count, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY)
+  ) {
+    uint dbton_id = share->use_sql_dbton_ids[roop_count];
+    spider_db_handler *dbton_hdl = spider->dbton_handler[dbton_id];
+    conn = spider->conns[roop_count];
+    pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+    if (dbton_hdl->need_lock_before_set_sql_for_exec(
+      SPIDER_SQL_TYPE_DELETE_SQL))
+    {
+      pthread_mutex_lock(&conn->mta_conn_mutex);
+      SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    }
+    if ((error_num = dbton_hdl->set_sql_for_exec(
+      SPIDER_SQL_TYPE_DELETE_SQL, roop_count)))
+    {
+      if (dbton_hdl->need_lock_before_set_sql_for_exec(
+        SPIDER_SQL_TYPE_DELETE_SQL))
+      {
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+      }
+      DBUG_RETURN(error_num);
+    }
+    if (!dbton_hdl->need_lock_before_set_sql_for_exec(
+      SPIDER_SQL_TYPE_DELETE_SQL))
+    {
+      pthread_mutex_lock(&conn->mta_conn_mutex);
+      SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    }
+    conn->need_mon = &spider->need_mons[roop_count];
+    DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = TRUE;
+    conn->mta_conn_mutex_unlock_later = TRUE;
+    spider_conn_set_timeout_from_share(conn, roop_count,
+      spider->wide_handler->trx->thd,
+      share);
+    if (
+      (error_num = spider_db_set_names(spider, conn, roop_count)) ||
+      (
+        dbton_hdl->execute_sql(
+          SPIDER_SQL_TYPE_DELETE_SQL,
+          conn,
+          -1,
+          &spider->need_mons[roop_count]) &&
+        (error_num = spider_db_errorno(conn))
+      )
+    ) {
+      if (
+        error_num == ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM &&
+        !conn->disable_reconnect
+      ) {
+        /* retry */
+        if ((error_num = spider_db_ping(spider, conn, roop_count)))
+        {
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+          if (
+            share->monitoring_kind[roop_count] &&
+            spider->need_mons[roop_count]
+          ) {
+            error_num = spider_ping_table_mon_from_table(
+                spider->wide_handler->trx,
+                spider->wide_handler->trx->thd,
+                share,
+                roop_count,
+                (uint32) share->monitoring_sid[roop_count],
+                share->table_name,
+                share->table_name_length,
+                spider->conn_link_idx[roop_count],
+                NULL,
+                0,
+                share->monitoring_kind[roop_count],
+                share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
+                TRUE
+              );
+          }
+          DBUG_RETURN(error_num);
+        }
+        if ((error_num = spider_db_set_names(spider, conn, roop_count)))
+        {
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+          if (
+            share->monitoring_kind[roop_count] &&
+            spider->need_mons[roop_count]
+          ) {
+            error_num = spider_ping_table_mon_from_table(
+                spider->wide_handler->trx,
+                spider->wide_handler->trx->thd,
+                share,
+                roop_count,
+                (uint32) share->monitoring_sid[roop_count],
+                share->table_name,
+                share->table_name_length,
+                spider->conn_link_idx[roop_count],
+                NULL,
+                0,
+                share->monitoring_kind[roop_count],
+                share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
+                TRUE
+              );
+          }
+          DBUG_RETURN(error_num);
+        }
+        spider_conn_set_timeout_from_share(conn, roop_count,
+          spider->wide_handler->trx->thd,
+          share);
+        if (dbton_hdl->execute_sql(
+          SPIDER_SQL_TYPE_DELETE_SQL,
+          conn,
+          -1,
+          &spider->need_mons[roop_count])
+        ) {
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          error_num = spider_db_errorno(conn);
+          if (
+            share->monitoring_kind[roop_count] &&
+            spider->need_mons[roop_count]
+          ) {
+            error_num = spider_ping_table_mon_from_table(
+                spider->wide_handler->trx,
+                spider->wide_handler->trx->thd,
+                share,
+                roop_count,
+                (uint32) share->monitoring_sid[roop_count],
+                share->table_name,
+                share->table_name_length,
+                spider->conn_link_idx[roop_count],
+                NULL,
+                0,
+                share->monitoring_kind[roop_count],
+                share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
+                TRUE
+              );
+          }
+          DBUG_RETURN(error_num);
+        }
+      } else {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        if (
+          share->monitoring_kind[roop_count] &&
+          spider->need_mons[roop_count]
+        ) {
+          error_num = spider_ping_table_mon_from_table(
+              spider->wide_handler->trx,
+              spider->wide_handler->trx->thd,
+              share,
+              roop_count,
+              (uint32) share->monitoring_sid[roop_count],
+              share->table_name,
+              share->table_name_length,
+              spider->conn_link_idx[roop_count],
+              NULL,
+              0,
+              share->monitoring_kind[roop_count],
+              share->monitoring_limit[roop_count],
+              share->monitoring_flag[roop_count],
+              TRUE
+            );
+        }
+        DBUG_RETURN(error_num);
+      }
+    }
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+  }
+  if ((error_num = spider->reset_sql_sql(SPIDER_SQL_TYPE_DELETE_SQL)))
+    DBUG_RETURN(error_num);
+  DBUG_RETURN(0);
+}
+
+int spider_db_disable_keys(
+  ha_spider *spider
+) {
+  int error_num, roop_count;
+  SPIDER_SHARE *share = spider->share;
+  SPIDER_CONN *conn;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("spider_db_disable_keys");
+  if (
+    spider_param_internal_optimize(spider->wide_handler->trx->thd,
+      share->internal_optimize) == 1
+  ) {
+    for (
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        spider->conn_link_idx, -1, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY);
+      roop_count < (int) share->link_count;
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        spider->conn_link_idx, roop_count, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY)
+    ) {
+      conn = spider->conns[roop_count];
+      dbton_hdl = spider->dbton_handler[conn->dbton_id];
+      if ((error_num = dbton_hdl->disable_keys(conn, roop_count)))
+      {
+        if (
+          share->monitoring_kind[roop_count] &&
+          spider->need_mons[roop_count]
+        ) {
+          error_num = spider_ping_table_mon_from_table(
+              spider->wide_handler->trx,
+              spider->wide_handler->trx->thd,
+              share,
+              roop_count,
+              (uint32) share->monitoring_sid[roop_count],
+              share->table_name,
+              share->table_name_length,
+              spider->conn_link_idx[roop_count],
+              NULL,
+              0,
+              share->monitoring_kind[roop_count],
+              share->monitoring_limit[roop_count],
+              share->monitoring_flag[roop_count],
+              TRUE
+            );
+        }
+        DBUG_RETURN(error_num);
+      }
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_enable_keys(
+  ha_spider *spider
+) {
+  int error_num, roop_count;
+  SPIDER_SHARE *share = spider->share;
+  SPIDER_CONN *conn;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("spider_db_enable_keys");
+  if (
+    spider_param_internal_optimize(spider->wide_handler->trx->thd,
+      share->internal_optimize) == 1
+  ) {
+    for (
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        spider->conn_link_idx, -1, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY);
+      roop_count < (int) share->link_count;
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        spider->conn_link_idx, roop_count, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY)
+    ) {
+      conn = spider->conns[roop_count];
+      dbton_hdl = spider->dbton_handler[conn->dbton_id];
+      if ((error_num = dbton_hdl->enable_keys(conn, roop_count)))
+      {
+        if (
+          share->monitoring_kind[roop_count] &&
+          spider->need_mons[roop_count]
+        ) {
+          error_num = spider_ping_table_mon_from_table(
+              spider->wide_handler->trx,
+              spider->wide_handler->trx->thd,
+              share,
+              roop_count,
+              (uint32) share->monitoring_sid[roop_count],
+              share->table_name,
+              share->table_name_length,
+              spider->conn_link_idx[roop_count],
+              NULL,
+              0,
+              share->monitoring_kind[roop_count],
+              share->monitoring_limit[roop_count],
+              share->monitoring_flag[roop_count],
+              TRUE
+            );
+        }
+        DBUG_RETURN(error_num);
+      }
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_check_table(
+  ha_spider *spider,
+  HA_CHECK_OPT* check_opt
+) {
+  int error_num, roop_count;
+  SPIDER_SHARE *share = spider->share;
+  SPIDER_CONN *conn;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("spider_db_check_table");
+  if (
+    spider_param_internal_optimize(spider->wide_handler->trx->thd,
+      share->internal_optimize) == 1
+  ) {
+    for (
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        spider->conn_link_idx, -1, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY);
+      roop_count < (int) share->link_count;
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        spider->conn_link_idx, roop_count, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY)
+    ) {
+      conn = spider->conns[roop_count];
+      dbton_hdl = spider->dbton_handler[conn->dbton_id];
+      if ((error_num = dbton_hdl->check_table(conn, roop_count, check_opt)))
+      {
+        if (
+          share->monitoring_kind[roop_count] &&
+          spider->need_mons[roop_count]
+        ) {
+          error_num = spider_ping_table_mon_from_table(
+              spider->wide_handler->trx,
+              spider->wide_handler->trx->thd,
+              share,
+              roop_count,
+              (uint32) share->monitoring_sid[roop_count],
+              share->table_name,
+              share->table_name_length,
+              spider->conn_link_idx[roop_count],
+              NULL,
+              0,
+              share->monitoring_kind[roop_count],
+              share->monitoring_limit[roop_count],
+              share->monitoring_flag[roop_count],
+              TRUE
+            );
+        }
+        DBUG_RETURN(error_num);
+      }
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_repair_table(
+  ha_spider *spider,
+  HA_CHECK_OPT* check_opt
+) {
+  int error_num, roop_count;
+  SPIDER_SHARE *share = spider->share;
+  SPIDER_CONN *conn;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("spider_db_repair_table");
+  if (
+    spider_param_internal_optimize(spider->wide_handler->trx->thd,
+      share->internal_optimize) == 1
+  ) {
+    for (
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        spider->conn_link_idx, -1, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY);
+      roop_count < (int) share->link_count;
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        spider->conn_link_idx, roop_count, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY)
+    ) {
+      conn = spider->conns[roop_count];
+      dbton_hdl = spider->dbton_handler[conn->dbton_id];
+      if ((error_num = dbton_hdl->repair_table(conn, roop_count, check_opt)))
+      {
+        if (
+          share->monitoring_kind[roop_count] &&
+          spider->need_mons[roop_count]
+        ) {
+          error_num = spider_ping_table_mon_from_table(
+              spider->wide_handler->trx,
+              spider->wide_handler->trx->thd,
+              share,
+              roop_count,
+              (uint32) share->monitoring_sid[roop_count],
+              share->table_name,
+              share->table_name_length,
+              spider->conn_link_idx[roop_count],
+              NULL,
+              0,
+              share->monitoring_kind[roop_count],
+              share->monitoring_limit[roop_count],
+              share->monitoring_flag[roop_count],
+              TRUE
+            );
+        }
+        DBUG_RETURN(error_num);
+      }
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_analyze_table(
+  ha_spider *spider
+) {
+  int error_num, roop_count;
+  SPIDER_SHARE *share = spider->share;
+  SPIDER_CONN *conn;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("spider_db_analyze_table");
+  if (
+    spider_param_internal_optimize(spider->wide_handler->trx->thd,
+      share->internal_optimize) == 1
+  ) {
+    for (
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        spider->conn_link_idx, -1, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY);
+      roop_count < (int) share->link_count;
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        spider->conn_link_idx, roop_count, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY)
+    ) {
+      conn = spider->conns[roop_count];
+      dbton_hdl = spider->dbton_handler[conn->dbton_id];
+      if ((error_num = dbton_hdl->analyze_table(conn, roop_count)))
+      {
+        if (
+          share->monitoring_kind[roop_count] &&
+          spider->need_mons[roop_count]
+        ) {
+          error_num = spider_ping_table_mon_from_table(
+              spider->wide_handler->trx,
+              spider->wide_handler->trx->thd,
+              share,
+              roop_count,
+              (uint32) share->monitoring_sid[roop_count],
+              share->table_name,
+              share->table_name_length,
+              spider->conn_link_idx[roop_count],
+              NULL,
+              0,
+              share->monitoring_kind[roop_count],
+              share->monitoring_limit[roop_count],
+              share->monitoring_flag[roop_count],
+              TRUE
+            );
+        }
+        DBUG_RETURN(error_num);
+      }
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_optimize_table(
+  ha_spider *spider
+) {
+  int error_num, roop_count;
+  SPIDER_SHARE *share = spider->share;
+  SPIDER_CONN *conn;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("spider_db_optimize_table");
+  if (
+    spider_param_internal_optimize(spider->wide_handler->trx->thd,
+      share->internal_optimize) == 1
+  ) {
+    for (
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        spider->conn_link_idx, -1, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY);
+      roop_count < (int) share->link_count;
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        spider->conn_link_idx, roop_count, share->link_count,
+        SPIDER_LINK_STATUS_RECOVERY)
+    ) {
+      conn = spider->conns[roop_count];
+      dbton_hdl = spider->dbton_handler[conn->dbton_id];
+      if ((error_num = dbton_hdl->optimize_table(conn, roop_count)))
+      {
+        if (
+          share->monitoring_kind[roop_count] &&
+          spider->need_mons[roop_count]
+        ) {
+          error_num = spider_ping_table_mon_from_table(
+              spider->wide_handler->trx,
+              spider->wide_handler->trx->thd,
+              share,
+              roop_count,
+              (uint32) share->monitoring_sid[roop_count],
+              share->table_name,
+              share->table_name_length,
+              spider->conn_link_idx[roop_count],
+              NULL,
+              0,
+              share->monitoring_kind[roop_count],
+              share->monitoring_limit[roop_count],
+              share->monitoring_flag[roop_count],
+              TRUE
+            );
+        }
+        DBUG_RETURN(error_num);
+      }
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_flush_tables(
+  ha_spider *spider,
+  bool lock
+) {
+  int error_num, roop_count;
+  SPIDER_SHARE *share = spider->share;
+  SPIDER_CONN *conn;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("spider_db_flush_tables");
+  for (
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, -1, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY);
+    roop_count < (int) share->link_count;
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, roop_count, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY)
+  ) {
+    conn = spider->conns[roop_count];
+    dbton_hdl = spider->dbton_handler[conn->dbton_id];
+    if ((error_num = dbton_hdl->flush_tables(conn, roop_count, lock)))
+    {
+      if (
+        share->monitoring_kind[roop_count] &&
+        spider->need_mons[roop_count]
+      ) {
+        error_num = spider_ping_table_mon_from_table(
+            spider->wide_handler->trx,
+            spider->wide_handler->trx->thd,
+            share,
+            roop_count,
+            (uint32) share->monitoring_sid[roop_count],
+            share->table_name,
+            share->table_name_length,
+            spider->conn_link_idx[roop_count],
+            NULL,
+            0,
+            share->monitoring_kind[roop_count],
+            share->monitoring_limit[roop_count],
+            share->monitoring_flag[roop_count],
+            TRUE
+          );
+      }
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_flush_logs(
+  ha_spider *spider
+) {
+  int roop_count, error_num;
+  SPIDER_SHARE *share = spider->share;
+  SPIDER_CONN *conn;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("spider_db_flush_logs");
+  for (
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, -1, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY);
+    roop_count < (int) share->link_count;
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, roop_count, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY)
+  ) {
+    conn = spider->conns[roop_count];
+    dbton_hdl = spider->dbton_handler[conn->dbton_id];
+    if ((error_num = dbton_hdl->flush_logs(conn, roop_count)))
+    {
+      if (
+        share->monitoring_kind[roop_count] &&
+        spider->need_mons[roop_count]
+      ) {
+        error_num = spider_ping_table_mon_from_table(
+            spider->wide_handler->trx,
+            spider->wide_handler->trx->thd,
+            share,
+            roop_count,
+            (uint32) share->monitoring_sid[roop_count],
+            share->table_name,
+            share->table_name_length,
+            spider->conn_link_idx[roop_count],
+            NULL,
+            0,
+            share->monitoring_kind[roop_count],
+            share->monitoring_limit[roop_count],
+            share->monitoring_flag[roop_count],
+            TRUE
+          );
+      }
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+/**
+  Find the field among the items in an expression tree.
+
+  @param  item_list         List of items of the expression.
+  @param  item_count        Number of items in the item list.
+  @param  start_item        Index of the first item to consider.
+  @param  str               String into which the expression is to be printed.
+  @param  func_name         Function or operator name.
+  @param  func_name_length  Length of function or operator name.
+
+  @return                   Pointer to the field in the item list if the list
+                            contains only one field; NULL otherwise.
+*/
+
+Field *spider_db_find_field_in_item_list(
+  Item **item_list,
+  uint item_count,
+  uint start_item,
+  spider_string *str,
+  const char *func_name,
+  int func_name_length
+) {
+  uint item_num;
+  Item *item;
+  Field *field = NULL;
+  DBUG_ENTER("spider_db_find_field_in_item_list");
+
+  if (str && func_name_length)
+  {
+    if (strncasecmp(func_name, ",", 1))
+    {
+      /* A known function or operator */
+      for (item_num = start_item; item_num < item_count; item_num++)
+      {
+        item = item_list[item_num];
+
+        if (item->type() == Item::FIELD_ITEM)
+        {
+          if (field)
+          {
+            /* Field is not relevant if there are multiple fields */
+            DBUG_RETURN(NULL);
+          }
+
+          field = ((Item_field *) item)->field;
+        }
+      }
+    }
+  }
+
+  DBUG_RETURN(field);
+}
+
+/**
+  Print an operand value within a statement generated for an expression.
+
+  @param  item              Operand value to print.
+  @param  field             Field related to the operand value.
+  @param  spider            Spider.
+  @param  str               String into which the value is to be printed.
+  @param  alias             Name related to the operand.
+  @param  alias_length      Length of the name.
+  @param  dbton_id          Spider Db/Table id.
+  @param  use_fields        Use fields or exchange fields.
+  @param  fields            Array of fields in the expression.
+
+  @return                   Error code.
+*/
+
+int spider_db_print_item_type(
+  Item *item,
+  Field *field,
+  ha_spider *spider,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  uint dbton_id,
+  bool use_fields,
+  spider_fields *fields
+) {
+  DBUG_ENTER("spider_db_print_item_type");
+  DBUG_PRINT("info",("spider COND type=%d", item->type()));
+
+  switch (item->type())
+  {
+    case Item::FUNC_ITEM:
+      DBUG_RETURN(spider_db_open_item_func((Item_func *) item, spider, str,
+        alias, alias_length, dbton_id, use_fields, fields));
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+    case Item::SUM_FUNC_ITEM:
+      DBUG_RETURN(spider_db_open_item_sum_func((Item_sum *)item, spider, str,
+        alias, alias_length, dbton_id, use_fields, fields));
+#endif
+    case Item::COND_ITEM:
+      DBUG_RETURN(spider_db_open_item_cond((Item_cond *) item, spider, str,
+        alias, alias_length, dbton_id, use_fields, fields));
+    case Item::FIELD_ITEM:
+      DBUG_RETURN(spider_db_open_item_field((Item_field *) item, spider, str,
+        alias, alias_length, dbton_id, use_fields, fields));
+    case Item::REF_ITEM:
+      DBUG_RETURN(spider_db_open_item_ref((Item_ref *) item, spider, str,
+        alias, alias_length, dbton_id, use_fields, fields));
+    case Item::ROW_ITEM:
+      DBUG_RETURN(spider_db_open_item_row((Item_row *) item, spider, str,
+        alias, alias_length, dbton_id, use_fields, fields));
+#ifdef SPIDER_USE_CONST_ITEM_FOR_STRING_INT_REAL_DECIMAL_DATE_ITEM
+    case Item::CONST_ITEM:
+    {
+      switch (item->cmp_type()) {
+        case TIME_RESULT:
+        case STRING_RESULT:
+          DBUG_RETURN(spider_db_open_item_string(item, field, spider, str,
+            alias, alias_length, dbton_id, use_fields, fields));
+        case INT_RESULT:
+        case REAL_RESULT:
+        case DECIMAL_RESULT:
+          DBUG_RETURN(spider_db_open_item_int(item, field, spider, str,
+            alias, alias_length, dbton_id, use_fields, fields));
+        default:
+          DBUG_ASSERT(FALSE);
+          DBUG_RETURN(spider_db_print_item_type_default(item, spider, str));
+      }
+    }
+#else
+    case Item::STRING_ITEM:
+      DBUG_RETURN(spider_db_open_item_string(item, field, spider, str,
+        alias, alias_length, dbton_id, use_fields, fields));
+    case Item::INT_ITEM:
+    case Item::REAL_ITEM:
+    case Item::DECIMAL_ITEM:
+      DBUG_RETURN(spider_db_open_item_int(item, field, spider, str,
+        alias, alias_length, dbton_id, use_fields, fields));
+#endif
+    case Item::CACHE_ITEM:
+      DBUG_RETURN(spider_db_open_item_cache((Item_cache *) item, field, spider,
+        str, alias, alias_length, dbton_id, use_fields, fields));
+    case Item::INSERT_VALUE_ITEM:
+      DBUG_RETURN(spider_db_open_item_insert_value((Item_insert_value *) item,
+        field, spider, str, alias, alias_length, dbton_id, use_fields, fields));
+    case Item::SUBSELECT_ITEM:
+    case Item::TRIGGER_FIELD_ITEM:
+#ifdef SPIDER_HAS_EXPR_CACHE_ITEM
+    case Item::EXPR_CACHE_ITEM:
+#endif
+      DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+    default:
+      DBUG_RETURN(spider_db_print_item_type_default(item, spider, str));
+  }
+
+  DBUG_RETURN(0);
+}
+
+int spider_db_print_item_type_default(
+  Item *item,
+  ha_spider *spider,
+  spider_string *str
+) {
+  DBUG_ENTER("spider_db_print_item_type_default");
+  THD *thd = spider->wide_handler->trx->thd;
+  SPIDER_SHARE *share = spider->share;
+  if (spider_param_skip_default_condition(thd,
+    share->skip_default_condition))
+    DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+  if (str)
+  {
+    if (spider->share->access_charset->cset == system_charset_info->cset)
+    {
+#if MYSQL_VERSION_ID < 50500
+      item->print(str->get_str(), QT_IS);
+#else
+      item->print(str->get_str(), QT_TO_SYSTEM_CHARSET);
+#endif
+    } else {
+      item->print(str->get_str(), QT_ORDINARY);
+    }
+    str->mem_calc();
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_open_item_cond(
+  Item_cond *item_cond,
+  ha_spider *spider,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  uint dbton_id,
+  bool use_fields,
+  spider_fields *fields
+) {
+  int error_num = 0;
+  List_iterator_fast<Item> lif(*(item_cond->argument_list()));
+  Item *item;
+  char *func_name = NULL;
+  int func_name_length = 0, restart_pos = 0;
+  DBUG_ENTER("spider_db_open_item_cond");
+  if (str)
+  {
+    if (str->reserve(SPIDER_SQL_OPEN_PAREN_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  }
+
+restart_first:
+  if ((item = lif++))
+  {
+    if (str)
+      restart_pos = str->length();
+    if ((error_num = spider_db_print_item_type(item, NULL, spider, str,
+      alias, alias_length, dbton_id, use_fields, fields)))
+    {
+      if (
+        str &&
+        error_num == ER_SPIDER_COND_SKIP_NUM &&
+        item_cond->functype() == Item_func::COND_AND_FUNC
+      ) {
+        DBUG_PRINT("info",("spider COND skip"));
+        str->length(restart_pos);
+        goto restart_first;
+      }
+      DBUG_RETURN(error_num);
+    }
+  }
+  if (error_num)
+    DBUG_RETURN(error_num);
+  while ((item = lif++))
+  {
+    if (str)
+    {
+      restart_pos = str->length();
+      if (!func_name)
+      {
+        func_name = (char*) item_cond->func_name();
+        func_name_length = strlen(func_name);
+      }
+      if (str->reserve(func_name_length + SPIDER_SQL_SPACE_LEN * 2))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+      str->q_append(func_name, func_name_length);
+      str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+    }
+
+    if ((error_num = spider_db_print_item_type(item, NULL, spider, str,
+      alias, alias_length, dbton_id, use_fields, fields)))
+    {
+      if (
+        str &&
+        error_num == ER_SPIDER_COND_SKIP_NUM &&
+        item_cond->functype() == Item_func::COND_AND_FUNC
+      ) {
+        DBUG_PRINT("info",("spider COND skip"));
+        str->length(restart_pos);
+      } else
+        DBUG_RETURN(error_num);
+    }
+  }
+  if (str)
+  {
+    if (str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_open_item_func(
+  Item_func *item_func,
+  ha_spider *spider,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  uint dbton_id,
+  bool use_fields,
+  spider_fields *fields
+) {
+  DBUG_ENTER("spider_db_open_item_func");
+  DBUG_RETURN(spider_dbton[dbton_id].db_util->open_item_func(
+    item_func, spider, str, alias, alias_length, use_fields, fields));
+}
+
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+int spider_db_open_item_sum_func(
+  Item_sum *item_sum,
+  ha_spider *spider,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  uint dbton_id,
+  bool use_fields,
+  spider_fields *fields
+) {
+  DBUG_ENTER("spider_db_open_item_func");
+  DBUG_RETURN(spider_dbton[dbton_id].db_util->open_item_sum_func(
+    item_sum, spider, str, alias, alias_length, use_fields, fields));
+}
+#endif
+
+int spider_db_open_item_ident(
+  Item_ident *item_ident,
+  ha_spider *spider,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  uint dbton_id,
+  bool use_fields,
+  spider_fields *fields
+) {
+  int error_num, field_name_length;
+  SPIDER_SHARE *share = spider->share;
+  DBUG_ENTER("spider_db_open_item_ident");
+  if (
+    item_ident->cached_field_index != NO_CACHED_FIELD_INDEX &&
+    item_ident->cached_table
+  ) {
+    Field *field = item_ident->cached_table->table->field[
+      item_ident->cached_field_index];
+    DBUG_PRINT("info",("spider use cached_field_index"));
+    DBUG_PRINT("info",("spider const_table=%s",
+      field->table->const_table ? "TRUE" : "FALSE"));
+    if (field->table->const_table)
+    {
+      if (str)
+      {
+        String str_value;
+        String *tmp_str;
+        tmp_str = field->val_str(&str_value);
+        if (!tmp_str)
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        if (str->reserve(SPIDER_SQL_VALUE_QUOTE_LEN * 2 +
+          tmp_str->length() * 2))
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+        str->append_escape_string(tmp_str->ptr(), tmp_str->length());
+        str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+      }
+    } else {
+      if (!use_fields)
+      {
+        if (!(field = spider->field_exchange(field)))
+          DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+        if (str)
+        {
+          if ((error_num = share->dbton_share[dbton_id]->
+            append_column_name_with_alias(str, field->field_index,
+            alias, alias_length)))
+            DBUG_RETURN(error_num);
+        }
+      } else {
+        if (str)
+        {
+          SPIDER_FIELD_CHAIN *field_chain = fields->get_next_field_chain();
+          SPIDER_FIELD_HOLDER *field_holder = field_chain->field_holder;
+          spider = field_holder->spider;
+          share = spider->share;
+          field = spider->field_exchange(field);
+          DBUG_ASSERT(field);
+          if ((error_num = share->dbton_share[dbton_id]->
+            append_column_name_with_alias(str, field->field_index,
+            field_holder->alias->ptr(), field_holder->alias->length())))
+            DBUG_RETURN(error_num);
+        } else {
+          if ((error_num = fields->add_field(field)))
+          {
+            DBUG_RETURN(error_num);
+          }
+        }
+      }
+    }
+    DBUG_RETURN(0);
+  }
+  if (str)
+  {
+#ifdef SPIDER_use_LEX_CSTRING_for_KEY_Field_name
+    if (item_ident->field_name.str)
+      field_name_length = item_ident->field_name.length;
+#else
+    if (item_ident->field_name)
+      field_name_length = strlen(item_ident->field_name);
+#endif
+    else
+      field_name_length = 0;
+    if (share->access_charset->cset == system_charset_info->cset)
+    {
+      if (str->reserve(alias_length +
+        field_name_length + /* SPIDER_SQL_NAME_QUOTE_LEN */ 2))
+      {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+      str->q_append(alias, alias_length);
+#ifdef SPIDER_use_LEX_CSTRING_for_KEY_Field_name
+      if ((error_num = spider_dbton[dbton_id].db_util->
+        append_escaped_name(str, item_ident->field_name.str,
+          field_name_length)))
+#else
+      if ((error_num = spider_dbton[dbton_id].db_util->
+        append_escaped_name(str, item_ident->field_name, field_name_length)))
+#endif
+      {
+        DBUG_RETURN(error_num);
+      }
+    } else {
+      if (str->reserve(alias_length))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(alias, alias_length);
+#ifdef SPIDER_use_LEX_CSTRING_for_KEY_Field_name
+      if ((error_num = spider_dbton[dbton_id].db_util->
+        append_escaped_name_with_charset(str, item_ident->field_name.str,
+          field_name_length, system_charset_info)))
+#else
+      if ((error_num = spider_dbton[dbton_id].db_util->
+        append_escaped_name_with_charset(str, item_ident->field_name,
+          field_name_length, system_charset_info)))
+#endif
+      {
+        DBUG_RETURN(error_num);
+      }
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_open_item_field(
+  Item_field *item_field,
+  ha_spider *spider,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  uint dbton_id,
+  bool use_fields,
+  spider_fields *fields
+) {
+  int error_num;
+  Field *field = item_field->field;
+  SPIDER_SHARE *share = spider->share;
+  DBUG_ENTER("spider_db_open_item_field");
+  if (field)
+  {
+    DBUG_PRINT("info",("spider field=%p", field));
+    DBUG_PRINT("info",("spider db=%s", field->table->s->db.str));
+    DBUG_PRINT("info",("spider table_name=%s",
+      field->table->s->table_name.str));
+    DBUG_PRINT("info",("spider const_table=%s",
+      field->table->const_table ? "TRUE" : "FALSE"));
+    if (field->table->const_table)
+    {
+      if (str)
+      {
+        String str_value;
+        String *tmp_str;
+        tmp_str = field->val_str(&str_value);
+        if (!tmp_str)
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        if (str->reserve(SPIDER_SQL_VALUE_QUOTE_LEN * 2 +
+          tmp_str->length() * 2))
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+        str->append_escape_string(tmp_str->ptr(), tmp_str->length());
+        str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+      }
+      DBUG_RETURN(0);
+    } else {
+      DBUG_PRINT("info",("spider tmp_table=%u", field->table->s->tmp_table));
+      if (field->table->s->tmp_table != INTERNAL_TMP_TABLE)
+      {
+        if (!use_fields)
+        {
+          if (!(field = spider->field_exchange(field)))
+            DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+          if (str)
+          {
+            if ((error_num = share->dbton_share[dbton_id]->
+              append_column_name_with_alias(str, field->field_index,
+              alias, alias_length)))
+              DBUG_RETURN(error_num);
+          }
+          DBUG_RETURN(0);
+        } else {
+          if (str)
+          {
+            SPIDER_FIELD_CHAIN *field_chain = fields->get_next_field_chain();
+            SPIDER_FIELD_HOLDER *field_holder = field_chain->field_holder;
+            spider = field_holder->spider;
+            share = spider->share;
+            field = spider->field_exchange(field);
+            DBUG_ASSERT(field);
+            if ((error_num = share->dbton_share[dbton_id]->
+              append_column_name_with_alias(str, field->field_index,
+              field_holder->alias->ptr(), field_holder->alias->length())))
+              DBUG_RETURN(error_num);
+          } else {
+            if ((error_num = fields->add_field(field)))
+            {
+              DBUG_RETURN(error_num);
+            }
+          }
+          DBUG_RETURN(0);
+        }
+      }
+    }
+  }
+  DBUG_RETURN(spider_db_open_item_ident(
+    (Item_ident *) item_field, spider, str, alias, alias_length, dbton_id,
+    use_fields, fields));
+}
+
+int spider_db_open_item_ref(
+  Item_ref *item_ref,
+  ha_spider *spider,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  uint dbton_id,
+  bool use_fields,
+  spider_fields *fields
+) {
+  int error_num;
+  DBUG_ENTER("spider_db_open_item_ref");
+  if (item_ref->ref)
+  {
+#ifdef SPIDER_use_LEX_CSTRING_for_KEY_Field_name
+    if (
+      (*(item_ref->ref))->type() != Item::CACHE_ITEM &&
+      item_ref->ref_type() != Item_ref::VIEW_REF &&
+      !item_ref->table_name.str &&
+      item_ref->name.str &&
+      item_ref->alias_name_used
+    )
+#else
+    if (
+      (*(item_ref->ref))->type() != Item::CACHE_ITEM &&
+      item_ref->ref_type() != Item_ref::VIEW_REF &&
+      !item_ref->table_name &&
+      item_ref->name &&
+      item_ref->alias_name_used
+    )
+#endif
+    {
+      if (str)
+      {
+#ifdef SPIDER_use_LEX_CSTRING_for_KEY_Field_name
+        uint length = item_ref->name.length;
+#else
+        uint length = strlen(item_ref->name);
+#endif
+        if (str->reserve(length + /* SPIDER_SQL_NAME_QUOTE_LEN */ 2))
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+#ifdef SPIDER_use_LEX_CSTRING_for_KEY_Field_name
+        if ((error_num = spider_dbton[dbton_id].db_util->
+          append_name(str, item_ref->name.str, length)))
+#else
+        if ((error_num = spider_dbton[dbton_id].db_util->
+          append_name(str, item_ref->name, length)))
+#endif
+        {
+          DBUG_RETURN(error_num);
+        }
+      }
+      DBUG_RETURN(0);
+    }
+    DBUG_RETURN(spider_db_print_item_type(*(item_ref->ref), NULL, spider, str,
+      alias, alias_length, dbton_id, use_fields, fields));
+  }
+  DBUG_RETURN(spider_db_open_item_ident((Item_ident *) item_ref, spider, str,
+    alias, alias_length, dbton_id, use_fields, fields));
+}
+
+int spider_db_open_item_row(
+  Item_row *item_row,
+  ha_spider *spider,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  uint dbton_id,
+  bool use_fields,
+  spider_fields *fields
+) {
+  int error_num;
+  uint roop_count, cols = item_row->cols() - 1;
+  Item *item;
+  DBUG_ENTER("spider_db_open_item_row");
+  if (str)
+  {
+    if (str->reserve(SPIDER_SQL_OPEN_PAREN_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  }
+  for (roop_count = 0; roop_count < cols; roop_count++)
+  {
+    item = item_row->element_index(roop_count);
+    if ((error_num = spider_db_print_item_type(item, NULL, spider, str,
+      alias, alias_length, dbton_id, use_fields, fields)))
+      DBUG_RETURN(error_num);
+    if (str)
+    {
+      if (str->reserve(SPIDER_SQL_COMMA_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+    }
+  }
+  item = item_row->element_index(roop_count);
+  if ((error_num = spider_db_print_item_type(item, NULL, spider, str,
+    alias, alias_length, dbton_id, use_fields, fields)))
+    DBUG_RETURN(error_num);
+  if (str)
+  {
+    if (str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+      SPIDER_SQL_CLOSE_PAREN_LEN);
+  }
+  DBUG_RETURN(0);
+}
+
+/**
+  Print a string value within a generated statement.
+
+  @param  item              String value to print.
+  @param  field             Field related to the string value.
+  @param  spider            Spider.
+  @param  str               String into which the value is to be printed.
+  @param  alias             Name related to the string value.
+  @param  alias_length      Length of the name.
+  @param  dbton_id          Spider Db/Table id.
+  @param  use_fields        Use fields or exchange fields.
+  @param  fields            Array of fields in an expression containing
+                            the string value.
+
+  @return                   Error code.
+*/
+
+int spider_db_open_item_string(
+  Item *item,
+  Field *field,
+  ha_spider *spider,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  uint dbton_id,
+  bool use_fields,
+  spider_fields *fields
+) {
+  int error_num = 0;
+  DBUG_ENTER("spider_db_open_item_string");
+
+  if (str)
+  {
+    THD *thd = NULL;
+    TABLE *UNINIT_VAR(table);
+    MY_BITMAP *saved_map = NULL;
+    Time_zone *UNINIT_VAR(saved_time_zone);
+    String str_value;
+    char tmp_buf[MAX_FIELD_WIDTH];
+    spider_string tmp_str(tmp_buf, MAX_FIELD_WIDTH, str->charset());
+    String *tmp_str2;
+    tmp_str.init_calc_mem(126);
+
+    if (!(tmp_str2 = item->val_str(tmp_str.get_str())))
+    {
+      if (str->reserve(SPIDER_SQL_NULL_LEN))
+      {
+        error_num = HA_ERR_OUT_OF_MEM;
+        goto end;
+      }
+      str->q_append(SPIDER_SQL_NULL_STR, SPIDER_SQL_NULL_LEN);
+    } else {
+      if (
+        field &&
+        field->type() == FIELD_TYPE_TIMESTAMP &&
+        field->table->in_use->variables.time_zone != UTC
+      ) {
+        /*
+          Store the string value in the field. This is necessary
+          when the statement contains more than one value for the
+          same field.
+        */
+        table = field->table;
+        thd = table->in_use;
+        saved_map = dbug_tmp_use_all_columns(table, &table->write_set);
+        item->save_in_field(field, FALSE);
+        saved_time_zone = thd->variables.time_zone;
+        thd->variables.time_zone = UTC;
+
+        /* Retrieve the stored value converted to UTC */
+        tmp_str2 = field->val_str(&str_value);
+
+        if (!tmp_str2)
+        {
+          error_num = HA_ERR_OUT_OF_MEM;
+          goto end;
+        }
+      }
+      DBUG_PRINT("info",("spider dbton_id=%u", dbton_id));
+      if (str->charset() != tmp_str2->charset() &&
+        spider_dbton[dbton_id].db_util->append_charset_name_before_string())
+      {
+        if ((error_num = spider_db_append_charset_name_before_string(str,
+          tmp_str2->charset())))
+        {
+          goto end;
+        }
+      }
+      if (str->reserve(SPIDER_SQL_VALUE_QUOTE_LEN * 2 +
+        tmp_str2->length() * 2))
+      {
+        error_num = HA_ERR_OUT_OF_MEM;
+        goto end;
+      }
+      if (!thd)
+        tmp_str.mem_calc();
+      str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+      str->append_escape_string(tmp_str2->ptr(), tmp_str2->length(),
+        tmp_str2->charset());
+      if (str->reserve(SPIDER_SQL_VALUE_QUOTE_LEN))
+      {
+        error_num = HA_ERR_OUT_OF_MEM;
+        goto end;
+      }
+      str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    }
+
+end:
+    if (thd)
+    {
+      thd->variables.time_zone = saved_time_zone;
+      dbug_tmp_restore_column_map(&table->write_set, saved_map);
+    }
+  }
+
+  DBUG_RETURN(error_num);
+}
+
+/**
+  Print an integer value within a generated statement.
+
+  @param  item              Integer value to print.
+  @param  field             Field related to the integer value.
+  @param  spider            Spider.
+  @param  str               String into which the value is to be printed.
+  @param  alias             Name related to the integer value.
+  @param  alias_length      Length of the name.
+  @param  dbton_id          Spider Db/Table id.
+  @param  use_fields        Use fields or exchange fields.
+  @param  fields            Array of fields in an expression containing
+                            the integer value.
+
+  @return                   Error code.
+*/
+
+int spider_db_open_item_int(
+  Item *item,
+  Field *field,
+  ha_spider *spider,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  uint dbton_id,
+  bool use_fields,
+  spider_fields *fields
+) {
+  int error_num = 0;
+  DBUG_ENTER("spider_db_open_item_int");
+
+  if (str)
+  {
+    THD *thd = NULL;
+    TABLE *table;
+    MY_BITMAP *saved_map;
+    Time_zone *saved_time_zone;
+    String str_value;
+    bool print_quoted_string;
+    char tmp_buf[MAX_FIELD_WIDTH];
+    spider_string tmp_str(tmp_buf, MAX_FIELD_WIDTH, str->charset());
+    String *tmp_str2;
+    tmp_str.init_calc_mem(127);
+
+    if (!(tmp_str2 = item->val_str(tmp_str.get_str())))
+    {
+      error_num = HA_ERR_OUT_OF_MEM;
+      goto end;
+    }
+    tmp_str.mem_calc();
+
+    if (
+      field &&
+      field->type() == FIELD_TYPE_TIMESTAMP &&
+      field->table->in_use->variables.time_zone != UTC
+    ) {
+      /*
+        Store the int value in the field.  This is necessary
+        when the statement contains more than one value for the
+        same field.
+      */
+      table = field->table;
+      thd = table->in_use;
+      saved_map = dbug_tmp_use_all_columns(table, &table->write_set);
+      item->save_in_field(field, FALSE);
+      saved_time_zone = thd->variables.time_zone;
+      thd->variables.time_zone = UTC;
+      print_quoted_string = TRUE;
+    } else {
+#ifdef SPIDER_ITEM_HAS_CMP_TYPE
+      DBUG_PRINT("info",("spider cmp_type=%u", item->cmp_type()));
+      if (item->cmp_type() == TIME_RESULT)
+        print_quoted_string = TRUE;
+      else
+#endif
+        print_quoted_string = FALSE;
+    }
+
+    if (print_quoted_string)
+    {
+      if (thd)
+      {
+        /* Retrieve the stored value converted to UTC */
+        tmp_str2 = field->val_str(&str_value);
+
+        if (!tmp_str2)
+        {
+          error_num = HA_ERR_OUT_OF_MEM;
+          goto end;
+        }
+      }
+
+      if (str->reserve(SPIDER_SQL_VALUE_QUOTE_LEN * 2 + tmp_str2->length()))
+      {
+        error_num = HA_ERR_OUT_OF_MEM;
+        goto end;
+      }
+      str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+      str->append(*tmp_str2);
+      str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    } else {
+      if (str->append(*tmp_str2))
+        error_num = HA_ERR_OUT_OF_MEM;
+    }
+
+end:
+    if (thd)
+    {
+      thd->variables.time_zone = saved_time_zone;
+      dbug_tmp_restore_column_map(&table->write_set, saved_map);
+    }
+  }
+
+  DBUG_RETURN(error_num);
+}
+
+/**
+  Print a cached value within a generated statement.
+
+  @param  item              Cached value to print.
+  @param  field             Field related to the cached value.
+  @param  spider            Spider.
+  @param  str               String into which the value is to be printed.
+  @param  alias             Name related to the cached value.
+  @param  alias_length      Length of the name.
+  @param  dbton_id          Spider Db/Table id.
+  @param  use_fields        Use fields or exchange fields.
+  @param  fields            Array of fields in the expression containing
+                            the cached value.
+
+  @return                   Error code.
+*/
+
+int spider_db_open_item_cache(
+  Item_cache *item_cache,
+  Field *field,
+  ha_spider *spider,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  uint dbton_id,
+  bool use_fields,
+  spider_fields *fields
+) {
+  DBUG_ENTER("spider_db_open_item_cache");
+  if (!item_cache->const_item())
+    DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+  DBUG_PRINT("info",("spider result_type=%u", item_cache->result_type()));
+
+  switch (item_cache->result_type())
+  {
+    case STRING_RESULT:
+      DBUG_RETURN(spider_db_open_item_string(item_cache, field, spider, str,
+        alias, alias_length, dbton_id, use_fields, fields));
+    case ROW_RESULT:
+      {
+        int error_num;
+        Item_cache_row *item_cache_row = (Item_cache_row *) item_cache;
+        uint item_count = item_cache_row->cols() - 1, roop_count;
+        if (str)
+        {
+          if (str->reserve(SPIDER_SQL_OPEN_PAREN_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+        }
+        for (roop_count = 0; roop_count < item_count; ++roop_count)
+        {
+          if ((error_num = spider_db_open_item_cache(
+            (Item_cache *) item_cache_row->element_index(roop_count), NULL,
+            spider, str, alias, alias_length, dbton_id, use_fields, fields
+          ))) {
+            DBUG_RETURN(error_num);
+          }
+          if (str)
+          {
+            if (str->reserve(SPIDER_SQL_COMMA_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+          }
+        }
+        if ((error_num = spider_db_open_item_cache(
+          (Item_cache *) item_cache_row->element_index(roop_count), NULL,
+          spider, str, alias, alias_length, dbton_id, use_fields, fields
+        ))) {
+          DBUG_RETURN(error_num);
+        }
+        if (str)
+        {
+          if (str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+            SPIDER_SQL_CLOSE_PAREN_LEN);
+        }
+      }
+      DBUG_RETURN(0);
+    case REAL_RESULT:
+    case INT_RESULT:
+    case DECIMAL_RESULT:
+    default:
+      break;
+  }
+  DBUG_RETURN(spider_db_open_item_int(item_cache, field, spider, str,
+    alias, alias_length, dbton_id, use_fields, fields));
+}
+
+/**
+  Print an INSERT value within a generated INSERT statement.
+
+  @param  item              INSERT value to print.
+  @param  field             Field related to the INSERT value.
+  @param  spider            Spider.
+  @param  str               String into which the value is to be printed.
+  @param  alias             Name related to the INSERT value.
+  @param  alias_length      Length of the name.
+  @param  dbton_id          Spider Db/Table id.
+  @param  use_fields        Use fields or exchange fields.
+  @param  fields            Array of fields in the expression.
+
+  @return                   Error code.
+*/
+
+int spider_db_open_item_insert_value(
+  Item_insert_value *item_insert_value,
+  Field *field,
+  ha_spider *spider,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  uint dbton_id,
+  bool use_fields,
+  spider_fields *fields
+) {
+  int error_num;
+  DBUG_ENTER("spider_db_open_item_insert_value");
+
+  if (item_insert_value->arg)
+  {
+    if (str)
+    {
+      if (str->reserve(SPIDER_SQL_VALUES_LEN + SPIDER_SQL_OPEN_PAREN_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_VALUES_STR, SPIDER_SQL_VALUES_LEN);
+      str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+    }
+    if ((error_num = spider_db_print_item_type(item_insert_value->arg, field,
+      spider, str, alias, alias_length, dbton_id, use_fields, fields)))
+      DBUG_RETURN(error_num);
+    if (str)
+    {
+      if (str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+    }
+  }
+
+  DBUG_RETURN(0);
+}
+
+int spider_db_append_condition(
+  ha_spider *spider,
+  const char *alias,
+  uint alias_length,
+  bool test_flg
+) {
+  int error_num;
+  DBUG_ENTER("spider_db_append_condition");
+  if (!test_flg)
+  {
+    if (spider->sql_kinds & SPIDER_SQL_KIND_SQL)
+    {
+      if ((error_num = spider->append_condition_sql_part(
+        alias, alias_length, SPIDER_SQL_TYPE_SELECT_SQL, FALSE)))
+        DBUG_RETURN(error_num);
+    }
+    if (spider->sql_kinds & SPIDER_SQL_KIND_HANDLER)
+    {
+      if ((error_num = spider->append_condition_sql_part(
+        alias, alias_length, SPIDER_SQL_TYPE_HANDLER, FALSE)))
+        DBUG_RETURN(error_num);
+    }
+  } else {
+    if (spider->wide_handler->cond_check)
+      DBUG_RETURN(spider->wide_handler->cond_check_error);
+    spider->wide_handler->cond_check = TRUE;
+    if ((spider->wide_handler->cond_check_error =
+      spider->append_condition_sql_part(
+        NULL, 0, SPIDER_SQL_TYPE_SELECT_SQL, TRUE)))
+      DBUG_RETURN(spider->wide_handler->cond_check_error);
+  }
+  DBUG_RETURN(0);
+}
+
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+int spider_db_append_update_columns(
+  ha_spider *spider,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  uint dbton_id,
+  bool use_fields,
+  spider_fields *fields
+) {
+  int error_num;
+  bool add_comma = FALSE;
+  List_iterator_fast<Item> fi(*spider->wide_handler->direct_update_fields),
+    vi(*spider->wide_handler->direct_update_values);
+  Item *field, *value;
+  DBUG_ENTER("spider_db_append_update_columns");
+  while ((field = fi++))
+  {
+    value = vi++;
+    if ((error_num = spider_db_print_item_type(
+      (Item *) field, NULL, spider, str, alias, alias_length, dbton_id,
+      use_fields, fields)))
+    {
+      if (
+        error_num == ER_SPIDER_COND_SKIP_NUM &&
+        field->type() == Item::FIELD_ITEM &&
+        ((Item_field *) field)->field
+      ) {
+        DBUG_PRINT("info",("spider no match field(ex. vp child table)"));
+        continue;
+      }
+      DBUG_RETURN(error_num);
+    }
+    if (str)
+    {
+      if (str->reserve(SPIDER_SQL_EQUAL_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+    }
+    if ((error_num = spider_db_print_item_type(
+      (Item *) value, ((Item_field *) field)->field, spider, str,
+      alias, alias_length, dbton_id, use_fields, fields)))
+      DBUG_RETURN(error_num);
+    if (str)
+    {
+      if (str->reserve(SPIDER_SQL_COMMA_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+      add_comma = TRUE;
+    }
+  }
+  if (str && add_comma)
+    str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  DBUG_RETURN(0);
+}
+#endif
+
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+bool spider_db_check_select_colum_in_group(
+  st_select_lex *select_lex,
+  Field *field
+) {
+  ORDER *group;
+  DBUG_ENTER("spider_db_check_select_colum_in_group");
+  for (group = (ORDER *) select_lex->group_list.first; group;
+    group = group->next)
+  {
+    Item *item = *group->item;
+    if (item->type() == Item::FIELD_ITEM)
+    {
+      Item_field *item_field = (Item_field *) item;
+      if (item_field->field == field)
+      {
+        /* This field can be used directly */
+        DBUG_RETURN(TRUE);
+      }
+    }
+  }
+  DBUG_RETURN(FALSE);
+}
+#endif
+
+uint spider_db_check_ft_idx(
+  Item_func *item_func,
+  ha_spider *spider
+) {
+  uint roop_count, roop_count2, part_num;
+  uint item_count = item_func->argument_count();
+  Item **item_list = item_func->arguments();
+  Item_field *item_field;
+  Field *field;
+  TABLE *table = spider->get_table();
+  TABLE_SHARE *table_share = table->s;
+  KEY *key_info;
+  KEY_PART_INFO *key_part;
+  bool match1, match2;
+  DBUG_ENTER("spider_db_check_ft_idx");
+
+  for (roop_count = 0; roop_count < table_share->keys; roop_count++)
+  {
+    key_info = &table->key_info[roop_count];
+    if (
+      key_info->algorithm == HA_KEY_ALG_FULLTEXT &&
+      item_count - 1 == spider_user_defined_key_parts(key_info)
+    ) {
+      match1 = TRUE;
+      for (roop_count2 = 1; roop_count2 < item_count; roop_count2++)
+      {
+        item_field = (Item_field *) item_list[roop_count2];
+        field = item_field->field;
+        if (!(field = spider->field_exchange(field)))
+          DBUG_RETURN(MAX_KEY);
+        match2 = FALSE;
+        for (key_part = key_info->key_part, part_num = 0;
+          part_num < spider_user_defined_key_parts(key_info);
+          key_part++, part_num++)
+        {
+          if (key_part->field == field)
+          {
+            match2 = TRUE;
+            break;
+          }
+        }
+        if (!match2)
+        {
+          match1 = FALSE;
+          break;
+        }
+      }
+      if (match1)
+        DBUG_RETURN(roop_count);
+    }
+  }
+  DBUG_RETURN(MAX_KEY);
+}
+
+int spider_db_udf_fetch_row(
+  SPIDER_TRX *trx,
+  Field *field,
+  SPIDER_DB_ROW *row
+) {
+  DBUG_ENTER("spider_db_udf_fetch_row");
+  DBUG_RETURN(row->store_to_field(field, trx->udf_access_charset));
+  DBUG_RETURN(0);
+}
+
+int spider_db_udf_fetch_table(
+  SPIDER_TRX *trx,
+  SPIDER_CONN *conn,
+  TABLE *table,
+  SPIDER_DB_RESULT *result,
+  uint set_on,
+  uint set_off
+) {
+  int error_num;
+  SPIDER_DB_ROW *row = NULL;
+  Field **field;
+  uint roop_count;
+  DBUG_ENTER("spider_db_udf_fetch_table");
+  if (!(row = result->fetch_row()))
+    DBUG_RETURN(HA_ERR_END_OF_FILE);
+
+#ifndef DBUG_OFF
+  MY_BITMAP *tmp_map =
+    dbug_tmp_use_all_columns(table, &table->write_set);
+#endif
+  for (
+    roop_count = 0,
+    field = table->field;
+    roop_count < set_on;
+    roop_count++,
+    field++
+  ) {
+    if ((error_num =
+      spider_db_udf_fetch_row(trx, *field, row)))
+    {
+#ifndef DBUG_OFF
+      dbug_tmp_restore_column_map(&table->write_set, tmp_map);
+#endif
+      DBUG_RETURN(error_num);
+    }
+    row->next();
+  }
+
+  for (; roop_count < set_off; roop_count++, field++)
+    (*field)->set_default();
+#ifndef DBUG_OFF
+  dbug_tmp_restore_column_map(&table->write_set, tmp_map);
+#endif
+  table->status = 0;
+  DBUG_RETURN(0);
+}
+
+int spider_db_udf_direct_sql_connect(
+  const SPIDER_DIRECT_SQL *direct_sql,
+  SPIDER_CONN *conn
+) {
+  int error_num, connect_retry_count;
+  THD* thd = current_thd;
+  longlong connect_retry_interval;
+  DBUG_ENTER("spider_db_udf_direct_sql_connect");
+
+  if (thd)
+  {
+    conn->connect_timeout = spider_param_connect_timeout(thd,
+      direct_sql->connect_timeout);
+    conn->net_read_timeout = spider_param_net_read_timeout(thd,
+      direct_sql->net_read_timeout);
+    conn->net_write_timeout = spider_param_net_write_timeout(thd,
+      direct_sql->net_write_timeout);
+    connect_retry_interval = spider_param_connect_retry_interval(thd);
+    connect_retry_count = spider_param_connect_retry_count(thd);
+  } else {
+    conn->connect_timeout = spider_param_connect_timeout(NULL,
+      direct_sql->connect_timeout);
+    conn->net_read_timeout = spider_param_net_read_timeout(NULL,
+      direct_sql->net_read_timeout);
+    conn->net_write_timeout = spider_param_net_write_timeout(NULL,
+      direct_sql->net_write_timeout);
+    connect_retry_interval = spider_param_connect_retry_interval(NULL);
+    connect_retry_count = spider_param_connect_retry_count(NULL);
+  }
+  DBUG_PRINT("info",("spider connect_timeout=%u", conn->connect_timeout));
+  DBUG_PRINT("info",("spider net_read_timeout=%u", conn->net_read_timeout));
+  DBUG_PRINT("info",("spider net_write_timeout=%u", conn->net_write_timeout));
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (direct_sql->access_mode == 0)
+  {
+#endif
+    if ((error_num = spider_reset_conn_setted_parameter(conn, thd)))
+      DBUG_RETURN(error_num);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  }
+#endif
+
+  if (conn->dbton_id == SPIDER_DBTON_SIZE)
+  {
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    if (conn->conn_kind == SPIDER_CONN_KIND_MYSQL)
+    {
+#endif
+      my_printf_error(
+        ER_SPIDER_SQL_WRAPPER_IS_INVALID_NUM,
+        ER_SPIDER_SQL_WRAPPER_IS_INVALID_STR,
+        MYF(0), conn->tgt_wrapper);
+      DBUG_RETURN(ER_SPIDER_SQL_WRAPPER_IS_INVALID_NUM);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    } else {
+      my_printf_error(
+        ER_SPIDER_NOSQL_WRAPPER_IS_INVALID_NUM,
+        ER_SPIDER_NOSQL_WRAPPER_IS_INVALID_STR,
+        MYF(0), conn->tgt_wrapper);
+      DBUG_RETURN(ER_SPIDER_NOSQL_WRAPPER_IS_INVALID_NUM);
+    }
+#endif
+  }
+
+/*
+  if (!(conn->db_conn = spider_dbton[conn->dbton_id].create_db_conn(conn)))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+*/
+
+  if ((error_num = conn->db_conn->connect(
+    direct_sql->tgt_host,
+    direct_sql->tgt_username,
+    direct_sql->tgt_password,
+    direct_sql->tgt_port,
+    direct_sql->tgt_socket,
+    direct_sql->server_name,
+    connect_retry_count, connect_retry_interval)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  ++conn->connection_id;
+  DBUG_RETURN(0);
+}
+
+int spider_db_udf_direct_sql_ping(
+  SPIDER_DIRECT_SQL *direct_sql
+) {
+  int error_num;
+  SPIDER_CONN *conn = direct_sql->conn;
+  DBUG_ENTER("spider_db_udf_direct_sql_ping");
+  if (conn->server_lost)
+  {
+    if ((error_num = spider_db_udf_direct_sql_connect(direct_sql, conn)))
+      DBUG_RETURN(error_num);
+    conn->server_lost = FALSE;
+  }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (direct_sql->access_mode == 0)
+  {
+#endif
+    if ((error_num = conn->db_conn->ping()))
+    {
+      spider_db_disconnect(conn);
+      if ((error_num = spider_db_udf_direct_sql_connect(direct_sql, conn)))
+      {
+        DBUG_PRINT("info", ("spider conn=%p SERVER_LOST", conn));
+        conn->server_lost = TRUE;
+        DBUG_RETURN(error_num);
+      }
+      if((error_num = conn->db_conn->ping()))
+      {
+        spider_db_disconnect(conn);
+        DBUG_PRINT("info", ("spider conn=%p SERVER_LOST", conn));
+        conn->server_lost = TRUE;
+        DBUG_RETURN(error_num);
+      }
+    }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  }
+#endif
+  conn->ping_time = (time_t) time((time_t*) 0);
+  DBUG_RETURN(0);
+}
+
+int spider_db_udf_direct_sql(
+  SPIDER_DIRECT_SQL *direct_sql
+) {
+  int error_num = 0, status = 0, roop_count = 0, need_mon = 0;
+  uint udf_table_mutex_index, field_num, set_on, set_off;
+  long long roop_count2;
+  bool end_of_file;
+  SPIDER_TRX *trx = direct_sql->trx;
+  THD *thd = trx->thd, *c_thd = current_thd;
+  SPIDER_CONN *conn = direct_sql->conn;
+  SPIDER_DB_RESULT *result = NULL;
+  TABLE *table;
+  int bulk_insert_rows = (int) spider_param_udf_ds_bulk_insert_rows(thd,
+    direct_sql->bulk_insert_rows);
+  int table_loop_mode = spider_param_udf_ds_table_loop_mode(thd,
+    direct_sql->table_loop_mode);
+  double ping_interval_at_trx_start =
+    spider_param_ping_interval_at_trx_start(thd);
+  time_t tmp_time = (time_t) time((time_t*) 0);
+  bool need_trx_end, need_all_commit, insert_start = FALSE;
+#if MYSQL_VERSION_ID < 50500
+#else
+  enum_sql_command sql_command_backup;
+#endif
+  DBUG_ENTER("spider_db_udf_direct_sql");
+#if MYSQL_VERSION_ID < 50500
+#else
+  if (direct_sql->real_table_used)
+  {
+    if (spider_sys_open_and_lock_tables(c_thd, &direct_sql->table_list_first,
+                               &direct_sql->open_tables_backup))
+    {
+      direct_sql->real_table_used = FALSE;
+      DBUG_RETURN(my_errno);
+    }
+    for (roop_count = 0; roop_count < direct_sql->table_count; roop_count++)
+    {
+      if (!spider_bit_is_set(direct_sql->real_table_bitmap, roop_count))
+        continue;
+      direct_sql->tables[roop_count] =
+        direct_sql->table_list[roop_count].table;
+    }
+    direct_sql->open_tables_thd = c_thd;
+    roop_count = 0;
+  }
+#endif
+
+  if (c_thd != thd)
+  {
+    need_all_commit = TRUE;
+    need_trx_end = TRUE;
+  } else {
+    need_all_commit = FALSE;
+#if MYSQL_VERSION_ID < 50500
+#else
+    if (direct_sql->real_table_used)
+    {
+      need_trx_end = TRUE;
+    } else {
+#endif
+      if (c_thd->transaction->stmt.ha_list)
+        need_trx_end = FALSE;
+      else
+        need_trx_end = TRUE;
+#if MYSQL_VERSION_ID < 50500
+#else
+    }
+#endif
+  }
+
+  if (!conn->disable_reconnect)
+  {
+    if (
+      (
+        conn->server_lost ||
+        difftime(tmp_time, conn->ping_time) >= ping_interval_at_trx_start
+      ) &&
+      (error_num = spider_db_udf_direct_sql_ping(direct_sql))
+    )
+      DBUG_RETURN(error_num);
+  } else if (conn->server_lost)
+  {
+    my_message(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM,
+      ER_SPIDER_REMOTE_SERVER_GONE_AWAY_STR, MYF(0));
+    DBUG_RETURN(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM);
+  }
+
+#if MYSQL_VERSION_ID < 50500
+#else
+  sql_command_backup = c_thd->lex->sql_command;
+  c_thd->lex->sql_command = SQLCOM_INSERT;
+#endif
+
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = &need_mon;
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  if (
+    !(error_num = spider_db_udf_direct_sql_set_names(direct_sql, trx, conn)) &&
+    !(error_num = spider_db_udf_direct_sql_select_db(direct_sql, conn))
+  ) {
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    if (direct_sql->access_mode != 0)
+    {
+      st_spider_db_request_key request_key;
+      request_key.spider_thread_id = direct_sql->trx->spider_thread_id;
+      request_key.query_id = direct_sql->trx->thd->query_id;
+      request_key.handler = direct_sql;
+      request_key.request_id = 1;
+      request_key.next = NULL;
+      if ((error_num = conn->db_conn->append_sql(
+        direct_sql->sql, direct_sql->sql_length, &request_key)))
+      {
+#if MYSQL_VERSION_ID < 50500
+#else
+        c_thd->lex->sql_command = sql_command_backup;
+#endif
+        DBUG_RETURN(error_num);
+      }
+    }
+#endif
+    spider_conn_set_timeout_from_direct_sql(conn, thd, direct_sql);
+    if (spider_db_query(
+      conn,
+      direct_sql->sql,
+      direct_sql->sql_length,
+      -1,
+      &need_mon)
+    ) {
+      error_num = spider_db_errorno(conn);
+      if (error_num == ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM)
+        my_message(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM,
+          ER_SPIDER_REMOTE_SERVER_GONE_AWAY_STR, MYF(0));
+    } else {
+      DBUG_PRINT("info",("spider conn=%p", conn));
+      if (!direct_sql->table_count)
+        roop_count = -1;
+      do {
+        if (roop_count == direct_sql->table_count)
+        {
+          if (table_loop_mode == 1)
+            roop_count--;
+          else if (table_loop_mode == 2)
+            roop_count = 0;
+          else
+            roop_count = -1;
+        }
+        st_spider_db_request_key request_key;
+        request_key.spider_thread_id = direct_sql->trx->spider_thread_id;
+        request_key.query_id = direct_sql->trx->thd->query_id;
+        request_key.handler = direct_sql;
+        request_key.request_id = 1;
+        request_key.next = NULL;
+        if ((result = conn->db_conn->use_result(NULL, &request_key, &error_num)))
+        {
+          end_of_file = FALSE;
+          if (roop_count >= 0)
+          {
+            while (!error_num && !end_of_file)
+            {
+              udf_table_mutex_index = spider_udf_calc_hash(
+                direct_sql->db_names[roop_count],
+                spider_param_udf_table_lock_mutex_count());
+              udf_table_mutex_index += spider_udf_calc_hash(
+                direct_sql->table_names[roop_count],
+                spider_param_udf_table_lock_mutex_count());
+              udf_table_mutex_index %=
+                spider_param_udf_table_lock_mutex_count();
+              pthread_mutex_lock(
+                &trx->udf_table_mutexes[udf_table_mutex_index]);
+              table = direct_sql->tables[roop_count];
+              table->in_use = c_thd;
+              memset((uchar *) table->null_flags, ~(uchar) 0,
+                sizeof(uchar) * table->s->null_bytes);
+              insert_start = TRUE;
+
+              field_num = result->num_fields();
+              if (field_num > table->s->fields)
+              {
+                set_on = table->s->fields;
+                set_off = table->s->fields;
+              } else {
+                set_on = field_num;
+                set_off = table->s->fields;
+              }
+              for (roop_count2 = 0; roop_count2 < set_on; roop_count2++)
+                bitmap_set_bit(table->write_set, (uint) roop_count2);
+              for (; roop_count2 < set_off; roop_count2++)
+                bitmap_clear_bit(table->write_set, (uint) roop_count2);
+
+#if MYSQL_VERSION_ID < 50500
+              if (table->file->has_transactions())
+#endif
+              {
+                THR_LOCK_DATA *to[2];
+                table->file->store_lock(table->in_use, to,
+                  TL_WRITE_CONCURRENT_INSERT);
+                if ((error_num = table->file->ha_external_lock(table->in_use,
+                  F_WRLCK)))
+                {
+                  table->file->print_error(error_num, MYF(0));
+                  break;
+                }
+#if MYSQL_VERSION_ID < 50500
+#else
+                if (
+                  table->s->tmp_table == NO_TMP_TABLE &&
+                  table->pos_in_table_list
+                ) {
+                  TABLE_LIST *next_tables =
+                    table->pos_in_table_list->next_global;
+                  while (next_tables && next_tables->parent_l)
+                  {
+                    DBUG_PRINT("info",("spider call child lock"));
+                    TABLE *child_table = next_tables->table;
+                    child_table->file->store_lock(child_table->in_use, to,
+                      TL_WRITE_CONCURRENT_INSERT);
+                    if ((error_num = child_table->file->ha_external_lock(
+                      child_table->in_use, F_WRLCK)))
+                    {
+                      table->file->print_error(error_num, MYF(0));
+                      break;
+                    }
+                    next_tables = next_tables->next_global;
+                  }
+                }
+#endif
+              }
+
+              if (direct_sql->iop)
+              {
+                if (direct_sql->iop[roop_count] == 1)
+                  table->file->extra(HA_EXTRA_IGNORE_DUP_KEY);
+                else if (direct_sql->iop[roop_count] == 2)
+                  table->file->extra(HA_EXTRA_WRITE_CAN_REPLACE);
+              }
+              table->file->ha_start_bulk_insert(
+                (ha_rows) bulk_insert_rows);
+
+              for (roop_count2 = 0;
+                roop_count2 < bulk_insert_rows;
+                roop_count2++)
+              {
+                if ((error_num = spider_db_udf_fetch_table(
+                  trx, conn, table, result, set_on, set_off)))
+                {
+                  if (error_num == HA_ERR_END_OF_FILE)
+                  {
+                    end_of_file = TRUE;
+                    error_num = 0;
+                  }
+                  break;
+                }
+                if (direct_sql->iop && direct_sql->iop[roop_count] == 2)
+                {
+                  if ((error_num = spider_sys_replace(table,
+                    &direct_sql->modified_non_trans_table)))
+                  {
+                    table->file->print_error(error_num, MYF(0));
+                    break;
+                  }
+                } else if ((error_num =
+                  table->file->ha_write_row(table->record[0])))
+                {
+                  /* insert */
+                  if (
+                    !direct_sql->iop || direct_sql->iop[roop_count] != 1 ||
+                    table->file->is_fatal_error(error_num, HA_CHECK_DUP)
+                  ) {
+                    DBUG_PRINT("info",("spider error_num=%d", error_num));
+                    table->file->print_error(error_num, MYF(0));
+                    break;
+                  } else
+                    error_num = 0;
+                }
+              }
+
+              if (error_num)
+                table->file->ha_end_bulk_insert();
+              else
+                error_num = table->file->ha_end_bulk_insert();
+              if (direct_sql->iop)
+              {
+                if (direct_sql->iop[roop_count] == 1)
+                  table->file->extra(HA_EXTRA_NO_IGNORE_DUP_KEY);
+                else if (direct_sql->iop[roop_count] == 2)
+                  table->file->extra(HA_EXTRA_WRITE_CANNOT_REPLACE);
+              }
+#if MYSQL_VERSION_ID < 50500
+              if (table->file->has_transactions())
+#endif
+              {
+                table->file->ha_external_unlock(table->in_use);
+#if MYSQL_VERSION_ID < 50500
+#else
+                if (
+                  table->s->tmp_table == NO_TMP_TABLE &&
+                  table->pos_in_table_list
+                ) {
+                  TABLE_LIST *next_tables =
+                    table->pos_in_table_list->next_global;
+                  while (next_tables && next_tables->parent_l)
+                  {
+                    DBUG_PRINT("info",("spider call child lock"));
+                    TABLE *child_table = next_tables->table;
+                    child_table->file->ha_external_lock(child_table->in_use,
+                      F_UNLCK);
+                    next_tables = next_tables->next_global;
+                  }
+                }
+#endif
+              }
+              table->file->ha_reset();
+              table->in_use = thd;
+              pthread_mutex_unlock(
+                &trx->udf_table_mutexes[udf_table_mutex_index]);
+            }
+            if (error_num)
+              roop_count = -1;
+          }
+          result->free_result();
+          delete result;
+        } else {
+          if (!error_num)
+          {
+            error_num = spider_db_errorno(conn);
+          }
+          if (error_num)
+          {
+            if (error_num == ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM)
+              my_message(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM,
+                ER_SPIDER_REMOTE_SERVER_GONE_AWAY_STR, MYF(0));
+            else if (error_num == HA_ERR_FOUND_DUPP_KEY)
+            {
+              my_printf_error(ER_SPIDER_HS_NUM, ER_SPIDER_HS_STR, MYF(0),
+                conn->db_conn->get_errno(), conn->db_conn->get_error());
+            }
+            break;
+          }
+        }
+        if ((status = conn->db_conn->next_result()) > 0)
+        {
+          error_num = status;
+          break;
+        }
+        if (roop_count >= 0)
+          roop_count++;
+      } while (status == 0);
+    }
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  if (need_trx_end && insert_start)
+  {
+    if (error_num)
+    {
+      (void) ha_rollback_trans(c_thd, FALSE);
+      if (need_all_commit)
+        (void) ha_rollback_trans(c_thd, TRUE);
+    } else {
+      if ((error_num = ha_commit_trans(c_thd, FALSE)))
+        my_error(error_num, MYF(0));
+      if (need_all_commit)
+      {
+        if ((error_num = ha_commit_trans(c_thd, TRUE)))
+          my_error(error_num, MYF(0));
+      }
+    }
+  }
+#if MYSQL_VERSION_ID < 50500
+#else
+  c_thd->lex->sql_command = sql_command_backup;
+#endif
+  DBUG_RETURN(error_num);
+}
+
+int spider_db_udf_direct_sql_select_db(
+  SPIDER_DIRECT_SQL *direct_sql,
+  SPIDER_CONN *conn
+) {
+  int error_num, need_mon = 0;
+  SPIDER_DB_CONN *db_conn = conn->db_conn;
+  DBUG_ENTER("spider_db_udf_direct_sql_select_db");
+  pthread_mutex_assert_owner(&conn->mta_conn_mutex);
+  if (
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    direct_sql->access_mode == 0 &&
+#endif
+    spider_dbton[conn->dbton_id].db_util->database_has_default_value()
+  ) {
+    DBUG_ASSERT(conn->mta_conn_mutex_file_pos.file_name);
+    if (
+      !conn->default_database.length() ||
+      conn->default_database.length() !=
+        direct_sql->tgt_default_db_name_length ||
+      memcmp(direct_sql->tgt_default_db_name, conn->default_database.ptr(),
+        direct_sql->tgt_default_db_name_length)
+    ) {
+      if (
+        (
+          spider_db_before_query(conn, &need_mon) ||
+          db_conn->select_db(direct_sql->tgt_default_db_name)
+        ) &&
+        (error_num = spider_db_errorno(conn))
+      ) {
+        if (
+          error_num == ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM &&
+          !conn->disable_reconnect
+        )
+          my_message(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM,
+            ER_SPIDER_REMOTE_SERVER_GONE_AWAY_STR, MYF(0));
+        DBUG_RETURN(error_num);
+      }
+      conn->default_database.length(0);
+      if (conn->default_database.reserve(
+        direct_sql->tgt_default_db_name_length + 1))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      conn->default_database.q_append(direct_sql->tgt_default_db_name,
+        direct_sql->tgt_default_db_name_length + 1);
+      conn->default_database.length(direct_sql->tgt_default_db_name_length);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_udf_direct_sql_set_names(
+  SPIDER_DIRECT_SQL *direct_sql,
+  SPIDER_TRX *trx,
+  SPIDER_CONN *conn
+) {
+  int error_num, need_mon = 0;
+  DBUG_ENTER("spider_db_udf_direct_sql_set_names");
+  pthread_mutex_assert_owner(&conn->mta_conn_mutex);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (direct_sql->access_mode == 0)
+  {
+#endif
+    DBUG_ASSERT(conn->mta_conn_mutex_file_pos.file_name);
+    if (
+      !conn->access_charset ||
+      trx->udf_access_charset->cset != conn->access_charset->cset
+    ) {
+      if (
+        (
+          spider_db_before_query(conn, &need_mon) ||
+          conn->db_conn->set_character_set(trx->udf_access_charset->csname)
+        ) &&
+        (error_num = spider_db_errorno(conn))
+      ) {
+        if (
+          error_num == ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM &&
+          !conn->disable_reconnect
+        ) {
+          my_message(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM,
+            ER_SPIDER_REMOTE_SERVER_GONE_AWAY_STR, MYF(0));
+        }
+        DBUG_RETURN(error_num);
+      }
+      conn->access_charset = trx->udf_access_charset;
+    }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  }
+#endif
+  DBUG_RETURN(0);
+}
+
+int spider_db_udf_check_and_set_set_names(
+  SPIDER_TRX *trx
+) {
+  int error_num;
+  DBUG_ENTER("spider_db_udf_check_and_set_set_names");
+  if (
+    !trx->udf_access_charset ||
+    trx->udf_access_charset->cset !=
+      trx->thd->variables.character_set_client->cset)
+  {
+    trx->udf_access_charset = trx->thd->variables.character_set_client;
+    if ((error_num = spider_db_udf_append_set_names(trx)))
+      DBUG_RETURN(error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_udf_append_set_names(
+  SPIDER_TRX *trx
+) {
+  DBUG_ENTER("spider_db_udf_append_set_names");
+  DBUG_RETURN(0);
+}
+
+void spider_db_udf_free_set_names(
+  SPIDER_TRX *trx
+) {
+  DBUG_ENTER("spider_db_udf_free_set_names");
+  DBUG_VOID_RETURN;
+}
+
+int spider_db_udf_ping_table(
+  SPIDER_TABLE_MON_LIST *table_mon_list,
+  SPIDER_SHARE *share,
+  SPIDER_TRX *trx,
+  SPIDER_CONN *conn,
+  char *where_clause,
+  uint where_clause_length,
+  bool ping_only,
+  bool use_where,
+  longlong limit
+) {
+  int error_num;
+  DBUG_ENTER("spider_db_udf_ping_table");
+  if (!pthread_mutex_trylock(&table_mon_list->monitor_mutex))
+  {
+    int need_mon = 0;
+    uint tmp_conn_link_idx = 0;
+    ha_spider spider;
+    SPIDER_WIDE_HANDLER wide_handler;
+    uchar db_request_phase = 0;
+    ulonglong db_request_id = 0;
+    spider.share = share;
+    spider.wide_handler = &wide_handler;
+    wide_handler.trx = trx;
+    spider.need_mons = &need_mon;
+    spider.conn_link_idx = &tmp_conn_link_idx;
+    spider.db_request_phase = &db_request_phase;
+    spider.db_request_id = &db_request_id;
+    pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+    pthread_mutex_lock(&conn->mta_conn_mutex);
+    SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    conn->need_mon = &need_mon;
+    DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = TRUE;
+    conn->mta_conn_mutex_unlock_later = TRUE;
+    if ((error_num = spider_db_ping(&spider, conn, 0)))
+    {
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      table_mon_list->last_mon_result = error_num;
+      pthread_mutex_unlock(&table_mon_list->monitor_mutex);
+      if (error_num == ER_CON_COUNT_ERROR)
+      {
+        my_error(ER_CON_COUNT_ERROR, MYF(0));
+        DBUG_RETURN(ER_CON_COUNT_ERROR);
+      }
+      my_error(ER_CONNECT_TO_FOREIGN_DATA_SOURCE, MYF(0),
+        share->server_names[0]);
+      DBUG_RETURN(ER_CONNECT_TO_FOREIGN_DATA_SOURCE);
+    }
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+    if (!ping_only)
+    {
+      int init_sql_alloc_size =
+        spider_param_init_sql_alloc_size(trx->thd, share->init_sql_alloc_size);
+      char *sql_buf = (char *) my_alloca(init_sql_alloc_size * 2);
+      if (!sql_buf)
+      {
+        table_mon_list->last_mon_result = HA_ERR_OUT_OF_MEM;
+        pthread_mutex_unlock(&table_mon_list->monitor_mutex);
+        my_error(HA_ERR_OUT_OF_MEM, MYF(0));
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+      char *where_buf = sql_buf + init_sql_alloc_size;
+      spider_string sql_str(sql_buf, sizeof(sql_buf),
+        system_charset_info);
+      spider_string where_str(where_buf, sizeof(where_buf),
+        system_charset_info);
+      sql_str.init_calc_mem(128);
+      where_str.init_calc_mem(129);
+      sql_str.length(0);
+      where_str.length(0);
+      if (
+        use_where &&
+        where_str.append(where_clause, where_clause_length,
+          trx->thd->variables.character_set_client)
+      ) {
+        table_mon_list->last_mon_result = HA_ERR_OUT_OF_MEM;
+        pthread_mutex_unlock(&table_mon_list->monitor_mutex);
+        my_error(HA_ERR_OUT_OF_MEM, MYF(0));
+        my_afree(sql_buf);
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+      share->access_charset = system_charset_info;
+      if ((error_num = spider_db_udf_ping_table_append_select(&sql_str,
+        share, trx, &where_str, use_where, limit, conn->dbton_id)))
+      {
+        table_mon_list->last_mon_result = error_num;
+        pthread_mutex_unlock(&table_mon_list->monitor_mutex);
+        my_error(error_num, MYF(0));
+        my_afree(sql_buf);
+        DBUG_RETURN(error_num);
+      }
+      pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+      pthread_mutex_lock(&conn->mta_conn_mutex);
+      SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      conn->need_mon = &need_mon;
+      DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = TRUE;
+      conn->mta_conn_mutex_unlock_later = TRUE;
+      if ((error_num = spider_db_set_names(&spider, conn, 0)))
+      {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        table_mon_list->last_mon_result = error_num;
+        pthread_mutex_unlock(&table_mon_list->monitor_mutex);
+        DBUG_PRINT("info",("spider error_num=%d", error_num));
+        my_afree(sql_buf);
+        DBUG_RETURN(error_num);
+      }
+      spider_conn_set_timeout_from_share(conn, 0, trx->thd, share);
+      if (spider_db_query(
+        conn,
+        sql_str.ptr(),
+        sql_str.length(),
+        -1,
+        &need_mon)
+      ) {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        error_num = spider_db_errorno(conn);
+        table_mon_list->last_mon_result = error_num;
+        pthread_mutex_unlock(&table_mon_list->monitor_mutex);
+        DBUG_PRINT("info",("spider error_num=%d", error_num));
+        my_afree(sql_buf);
+        DBUG_RETURN(error_num);
+      }
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      spider_db_discard_result(&spider, 0, conn);
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      my_afree(sql_buf);
+    }
+    table_mon_list->last_mon_result = 0;
+    pthread_mutex_unlock(&table_mon_list->monitor_mutex);
+  } else {
+    pthread_mutex_lock(&table_mon_list->monitor_mutex);
+    error_num = table_mon_list->last_mon_result;
+    pthread_mutex_unlock(&table_mon_list->monitor_mutex);
+    DBUG_RETURN(error_num);
+  }
+
+  DBUG_RETURN(0);
+}
+
+int spider_db_udf_ping_table_append_mon_next(
+  spider_string *str,
+  char *child_table_name,
+  uint child_table_name_length,
+  int link_id,
+  char *static_link_id,
+  uint static_link_id_length,
+  char *where_clause,
+  uint where_clause_length,
+  longlong first_sid,
+  int full_mon_count,
+  int current_mon_count,
+  int success_count,
+  int fault_count,
+  int flags,
+  longlong limit
+) {
+  char limit_str[SPIDER_SQL_INT_LEN], sid_str[SPIDER_SQL_INT_LEN];
+  int limit_str_length, sid_str_length;
+  spider_string child_table_name_str(child_table_name,
+    child_table_name_length + 1, str->charset());
+  spider_string where_clause_str(where_clause ? where_clause : "",
+    where_clause_length + 1, str->charset());
+  DBUG_ENTER("spider_db_udf_ping_table_append_mon_next");
+  child_table_name_str.init_calc_mem(130);
+  where_clause_str.init_calc_mem(131);
+  child_table_name_str.length(child_table_name_length);
+  where_clause_str.length(where_clause_length);
+  limit_str_length = my_sprintf(limit_str, (limit_str, "%lld", limit));
+  sid_str_length = my_sprintf(sid_str, (sid_str, "%lld", first_sid));
+  if (str->reserve(
+    SPIDER_SQL_SELECT_LEN +
+    SPIDER_SQL_PING_TABLE_LEN +
+    (child_table_name_length * 2) +
+    (
+      static_link_id ?
+      (SPIDER_SQL_INT_LEN * 5) +
+      (SPIDER_SQL_VALUE_QUOTE_LEN * 2) +
+      (static_link_id_length * 2) :
+      (SPIDER_SQL_INT_LEN * 6)
+    ) +
+    sid_str_length +
+    limit_str_length +
+    (where_clause_length * 2) +
+    (SPIDER_SQL_VALUE_QUOTE_LEN * 4) +
+    (SPIDER_SQL_COMMA_LEN * 9) +
+    SPIDER_SQL_CLOSE_PAREN_LEN
+  ))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_SELECT_STR, SPIDER_SQL_SELECT_LEN);
+  str->q_append(SPIDER_SQL_PING_TABLE_STR, SPIDER_SQL_PING_TABLE_LEN);
+  str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+  str->append_escape_string(child_table_name_str.ptr(), child_table_name_str.length());
+  str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+  str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  if (static_link_id)
+  {
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    str->append_for_single_quote(static_link_id, static_link_id_length);
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+  } else {
+    str->qs_append(link_id);
+  }
+  str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  str->qs_append(flags);
+  str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  str->q_append(limit_str, limit_str_length);
+  str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+  str->append_escape_string(where_clause_str.ptr(), where_clause_str.length());
+  str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+  str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  str->q_append(sid_str, sid_str_length);
+  str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  str->qs_append(full_mon_count);
+  str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  str->qs_append(current_mon_count);
+  str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  str->qs_append(success_count);
+  str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  str->qs_append(fault_count);
+  str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_db_udf_ping_table_append_select(
+  spider_string *str,
+  SPIDER_SHARE *share,
+  SPIDER_TRX *trx,
+  spider_string *where_str,
+  bool use_where,
+  longlong limit,
+  uint dbton_id
+) {
+  int error_num;
+  char limit_str[SPIDER_SQL_INT_LEN];
+  int limit_str_length;
+  DBUG_ENTER("spider_db_udf_ping_table_append_select");
+  if (str->reserve(SPIDER_SQL_SELECT_LEN + SPIDER_SQL_ONE_LEN +
+    SPIDER_SQL_FROM_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_SELECT_STR, SPIDER_SQL_SELECT_LEN);
+  str->q_append(SPIDER_SQL_ONE_STR, SPIDER_SQL_ONE_LEN);
+  str->q_append(SPIDER_SQL_FROM_STR, SPIDER_SQL_FROM_LEN);
+  if (share->tgt_dbs[0])
+  {
+    if ((error_num = spider_db_append_name_with_quote_str(str,
+      share->tgt_dbs[0], dbton_id)))
+      DBUG_RETURN(error_num);
+    if (str->reserve(SPIDER_SQL_DOT_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_DOT_STR, SPIDER_SQL_DOT_LEN);
+  }
+  if ((error_num = spider_db_append_name_with_quote_str(str,
+    share->tgt_table_names[0], share->sql_dbton_ids[0])))
+    DBUG_RETURN(error_num);
+
+  if (spider_dbton[dbton_id].db_util->limit_mode() == 1)
+  {
+    if (use_where)
+    {
+      if (str->reserve(where_str->length() * 2))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->append_escape_string(where_str->ptr(), where_str->length());
+    }
+  } else {
+    limit_str_length = my_sprintf(limit_str, (limit_str, "%lld", limit));
+    if (str->reserve(
+      (use_where ? (where_str->length() * 2) : 0) +
+      SPIDER_SQL_LIMIT_LEN + limit_str_length
+    ))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    if (use_where)
+    {
+      str->append_escape_string(where_str->ptr(), where_str->length());
+    }
+    str->q_append(SPIDER_SQL_LIMIT_STR, SPIDER_SQL_LIMIT_LEN);
+    str->q_append(limit_str, limit_str_length);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_udf_ping_table_mon_next(
+  THD *thd,
+  SPIDER_TABLE_MON *table_mon,
+  SPIDER_CONN *conn,
+  SPIDER_MON_TABLE_RESULT *mon_table_result,
+  char *child_table_name,
+  uint child_table_name_length,
+  int link_id,
+  char *where_clause,
+  uint where_clause_length,
+  longlong first_sid,
+  int full_mon_count,
+  int current_mon_count,
+  int success_count,
+  int fault_count,
+  int flags,
+  longlong limit
+) {
+  int error_num, need_mon = 0;
+  uint tmp_conn_link_idx = 0;
+  SPIDER_DB_RESULT *res;
+  SPIDER_SHARE *share = table_mon->share;
+  int init_sql_alloc_size =
+    spider_param_init_sql_alloc_size(thd, share->init_sql_alloc_size);
+  ha_spider spider;
+  SPIDER_WIDE_HANDLER wide_handler;
+  SPIDER_TRX trx;
+  DBUG_ENTER("spider_db_udf_ping_table_mon_next");
+  char *sql_buf = (char *) my_alloca(init_sql_alloc_size);
+  if (!sql_buf)
+  {
+    my_error(HA_ERR_OUT_OF_MEM, MYF(0));
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  spider_string sql_str(sql_buf, sizeof(sql_buf),
+    thd->variables.character_set_client);
+  sql_str.init_calc_mem(132);
+  sql_str.length(0);
+  trx.thd = thd;
+  spider.share = share;
+  spider.wide_handler = &wide_handler;
+  wide_handler.trx = &trx;
+  spider.need_mons = &need_mon;
+  spider.conn_link_idx = &tmp_conn_link_idx;
+
+  share->access_charset = thd->variables.character_set_client;
+  if ((error_num = spider_db_udf_ping_table_append_mon_next(&sql_str,
+    child_table_name, child_table_name_length, link_id,
+    table_mon->parent->share->static_link_ids[0],
+    table_mon->parent->share->static_link_ids_lengths[0],
+    where_clause,
+    where_clause_length, first_sid, full_mon_count, current_mon_count,
+    success_count, fault_count, flags, limit)))
+  {
+    my_error(error_num, MYF(0));
+    my_afree(sql_buf);
+    DBUG_RETURN(error_num);
+  }
+
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = &need_mon;
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  if ((error_num = spider_db_ping(&spider, conn, 0)))
+  {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+    my_error(ER_CONNECT_TO_FOREIGN_DATA_SOURCE, MYF(0),
+      share->server_names[0]);
+    my_afree(sql_buf);
+    DBUG_RETURN(ER_CONNECT_TO_FOREIGN_DATA_SOURCE);
+  }
+  if ((error_num = spider_db_set_names(&spider, conn, 0)))
+  {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+    my_afree(sql_buf);
+    DBUG_RETURN(error_num);
+  }
+  spider_conn_set_timeout_from_share(conn, 0, thd, share);
+  if (spider_db_query(
+    conn,
+    sql_str.ptr(),
+    sql_str.length(),
+    -1,
+    &need_mon)
+  ) {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    my_afree(sql_buf);
+    DBUG_RETURN(spider_db_errorno(conn));
+  }
+  st_spider_db_request_key request_key;
+  request_key.spider_thread_id = trx.spider_thread_id;
+  request_key.query_id = trx.thd->query_id;
+  request_key.handler = table_mon;
+  request_key.request_id = 1;
+  request_key.next = NULL;
+  if (!(res = conn->db_conn->store_result(NULL, &request_key, &error_num)))
+  {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    if (error_num)
+    {
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      my_afree(sql_buf);
+      DBUG_RETURN(error_num);
+    }
+    else if ((error_num = spider_db_errorno(conn)))
+    {
+      my_afree(sql_buf);
+      DBUG_RETURN(error_num);
+    }
+    my_error(HA_ERR_OUT_OF_MEM, MYF(0));
+    my_afree(sql_buf);
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  my_afree(sql_buf);
+  error_num = res->fetch_table_mon_status(mon_table_result->result_status);
+  res->free_result();
+  delete res;
+  DBUG_RETURN(error_num);
+}
+
+int spider_db_udf_copy_key_row(
+  spider_string *str,
+  spider_string *source_str,
+  Field *field,
+  ulong *row_pos,
+  ulong *length,
+  const char *joint_str,
+  const int joint_length,
+  uint dbton_id
+) {
+  int error_num;
+  DBUG_ENTER("spider_db_udf_copy_key_row");
+#ifdef SPIDER_use_LEX_CSTRING_for_KEY_Field_name
+  if ((error_num = spider_db_append_name_with_quote_str(str,
+    (char *) field->field_name.str, dbton_id)))
+#else
+  if ((error_num = spider_db_append_name_with_quote_str(str,
+    (char *) field->field_name, dbton_id)))
+#endif
+    DBUG_RETURN(error_num);
+  if (str->reserve(joint_length + *length + SPIDER_SQL_AND_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(joint_str, joint_length);
+  str->q_append(source_str->ptr() + *row_pos, *length);
+  str->q_append(SPIDER_SQL_AND_STR, SPIDER_SQL_AND_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_db_udf_copy_tables(
+  SPIDER_COPY_TABLES *copy_tables,
+  ha_spider *spider,
+  TABLE *table,
+  longlong bulk_insert_rows
+) {
+  int error_num = 0, roop_count;
+  bool end_of_file = FALSE;
+  ulong *last_lengths, *last_row_pos = NULL;
+  ha_spider *tmp_spider;
+  SPIDER_CONN *tmp_conn;
+  int all_link_cnt =
+    copy_tables->link_idx_count[0] + copy_tables->link_idx_count[1];
+  SPIDER_COPY_TABLE_CONN *src_tbl_conn = copy_tables->table_conn[0];
+  SPIDER_COPY_TABLE_CONN *dst_tbl_conn;
+  spider_db_copy_table *select_ct = src_tbl_conn->copy_table;
+  spider_db_copy_table *insert_ct = NULL;
+  KEY *key_info = &table->key_info[table->s->primary_key];
+  int bulk_insert_interval;
+  DBUG_ENTER("spider_db_udf_copy_tables");
+  if (!(last_row_pos = (ulong *)
+    spider_bulk_malloc(spider_current_trx, 30, MYF(MY_WME),
+      &last_row_pos, (uint) (sizeof(ulong) * table->s->fields),
+      &last_lengths, (uint) (sizeof(ulong) * table->s->fields),
+      NullS))
+  ) {
+    my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+    goto error;
+  }
+  while (!end_of_file)
+  {
+    if (copy_tables->trx->thd->killed)
+    {
+      my_error(ER_QUERY_INTERRUPTED, MYF(0));
+      error_num = ER_QUERY_INTERRUPTED;
+      goto error_killed;
+    }
+    if (copy_tables->use_transaction)
+    {
+      for (roop_count = 0; roop_count < all_link_cnt; roop_count++)
+      {
+        tmp_spider = &spider[roop_count];
+        tmp_conn = tmp_spider->conns[0];
+        /* disable transaction */
+        spider_conn_clear_queue_at_commit(tmp_conn);
+        if (!tmp_conn->trx_start)
+        {
+          pthread_mutex_assert_not_owner(&tmp_conn->mta_conn_mutex);
+          pthread_mutex_lock(&tmp_conn->mta_conn_mutex);
+          SPIDER_SET_FILE_POS(&tmp_conn->mta_conn_mutex_file_pos);
+          tmp_conn->need_mon = &tmp_spider->need_mons[0];
+          DBUG_ASSERT(!tmp_conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(!tmp_conn->mta_conn_mutex_unlock_later);
+          tmp_conn->mta_conn_mutex_lock_already = TRUE;
+          tmp_conn->mta_conn_mutex_unlock_later = TRUE;
+          if (spider_db_ping(tmp_spider, tmp_conn, 0))
+          {
+            DBUG_ASSERT(tmp_conn->mta_conn_mutex_lock_already);
+            DBUG_ASSERT(tmp_conn->mta_conn_mutex_unlock_later);
+            tmp_conn->mta_conn_mutex_lock_already = FALSE;
+            tmp_conn->mta_conn_mutex_unlock_later = FALSE;
+            SPIDER_CLEAR_FILE_POS(&tmp_conn->mta_conn_mutex_file_pos);
+            pthread_mutex_unlock(&tmp_conn->mta_conn_mutex);
+            my_error(ER_CONNECT_TO_FOREIGN_DATA_SOURCE, MYF(0),
+              tmp_spider->share->server_names[0]);
+            error_num = ER_CONNECT_TO_FOREIGN_DATA_SOURCE;
+            goto error_db_ping;
+          }
+          if (
+            (error_num = spider_db_set_names(tmp_spider, tmp_conn, 0)) ||
+            (error_num = spider_db_start_transaction(tmp_conn,
+              tmp_spider->need_mons))
+          ) {
+            DBUG_ASSERT(tmp_conn->mta_conn_mutex_lock_already);
+            DBUG_ASSERT(tmp_conn->mta_conn_mutex_unlock_later);
+            tmp_conn->mta_conn_mutex_lock_already = FALSE;
+            tmp_conn->mta_conn_mutex_unlock_later = FALSE;
+            SPIDER_CLEAR_FILE_POS(&tmp_conn->mta_conn_mutex_file_pos);
+            pthread_mutex_unlock(&tmp_conn->mta_conn_mutex);
+            goto error_start_transaction;
+          }
+          DBUG_ASSERT(tmp_conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(tmp_conn->mta_conn_mutex_unlock_later);
+          tmp_conn->mta_conn_mutex_lock_already = FALSE;
+          tmp_conn->mta_conn_mutex_unlock_later = FALSE;
+          SPIDER_CLEAR_FILE_POS(&tmp_conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&tmp_conn->mta_conn_mutex);
+        }
+      }
+    } else {
+      for (roop_count = 0; roop_count < all_link_cnt; roop_count++)
+      {
+        tmp_spider = &spider[roop_count];
+        tmp_conn = tmp_spider->conns[0];
+        /* disable transaction */
+        spider_conn_clear_queue_at_commit(tmp_conn);
+        spider_db_handler *tmp_dbton_hdl =
+          tmp_spider->dbton_handler[tmp_conn->dbton_id];
+        if ((error_num = tmp_dbton_hdl->insert_lock_tables_list(tmp_conn, 0)))
+          goto error_lock_table_hash;
+        tmp_conn->table_lock = 2;
+      }
+      for (roop_count = 0; roop_count < all_link_cnt; roop_count++)
+      {
+        tmp_spider = &spider[roop_count];
+        tmp_conn = tmp_spider->conns[0];
+        pthread_mutex_assert_not_owner(&tmp_conn->mta_conn_mutex);
+        pthread_mutex_lock(&tmp_conn->mta_conn_mutex);
+        SPIDER_SET_FILE_POS(&tmp_conn->mta_conn_mutex_file_pos);
+        tmp_conn->need_mon = &tmp_spider->need_mons[0];
+        DBUG_ASSERT(!tmp_conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(!tmp_conn->mta_conn_mutex_unlock_later);
+        tmp_conn->mta_conn_mutex_lock_already = TRUE;
+        tmp_conn->mta_conn_mutex_unlock_later = TRUE;
+        if (spider_db_ping(tmp_spider, tmp_conn, 0))
+        {
+          DBUG_ASSERT(tmp_conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(tmp_conn->mta_conn_mutex_unlock_later);
+          tmp_conn->mta_conn_mutex_lock_already = FALSE;
+          tmp_conn->mta_conn_mutex_unlock_later = FALSE;
+          SPIDER_CLEAR_FILE_POS(&tmp_conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&tmp_conn->mta_conn_mutex);
+          my_error(ER_CONNECT_TO_FOREIGN_DATA_SOURCE, MYF(0),
+            tmp_spider->share->server_names[0]);
+          error_num = ER_CONNECT_TO_FOREIGN_DATA_SOURCE;
+          goto error_db_ping;
+        }
+        if (
+          tmp_conn->db_conn->have_lock_table_list() &&
+          (
+            (error_num = spider_db_set_names(tmp_spider, tmp_conn, 0)) ||
+            (error_num = spider_db_lock_tables(tmp_spider, 0))
+          )
+        ) {
+          DBUG_ASSERT(tmp_conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(tmp_conn->mta_conn_mutex_unlock_later);
+          tmp_conn->mta_conn_mutex_lock_already = FALSE;
+          tmp_conn->mta_conn_mutex_unlock_later = FALSE;
+          SPIDER_CLEAR_FILE_POS(&tmp_conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&tmp_conn->mta_conn_mutex);
+          tmp_conn->table_lock = 0;
+          if (error_num == HA_ERR_OUT_OF_MEM)
+            my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+          goto error_lock_tables;
+        }
+        DBUG_ASSERT(tmp_conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(tmp_conn->mta_conn_mutex_unlock_later);
+        tmp_conn->mta_conn_mutex_lock_already = FALSE;
+        tmp_conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&tmp_conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&tmp_conn->mta_conn_mutex);
+        tmp_conn->table_lock = 1;
+      }
+    }
+
+    tmp_conn = src_tbl_conn->conn;
+    spider_conn_set_timeout_from_share(tmp_conn, 0,
+      copy_tables->trx->thd, src_tbl_conn->share);
+    pthread_mutex_assert_not_owner(&tmp_conn->mta_conn_mutex);
+    pthread_mutex_lock(&tmp_conn->mta_conn_mutex);
+    SPIDER_SET_FILE_POS(&tmp_conn->mta_conn_mutex_file_pos);
+    tmp_conn->need_mon = &src_tbl_conn->need_mon;
+    DBUG_ASSERT(!tmp_conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(!tmp_conn->mta_conn_mutex_unlock_later);
+    tmp_conn->mta_conn_mutex_lock_already = TRUE;
+    tmp_conn->mta_conn_mutex_unlock_later = TRUE;
+    if (select_ct->exec_query(
+      tmp_conn,
+      -1,
+      &src_tbl_conn->need_mon)
+    ) {
+      DBUG_ASSERT(tmp_conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(tmp_conn->mta_conn_mutex_unlock_later);
+      tmp_conn->mta_conn_mutex_lock_already = FALSE;
+      tmp_conn->mta_conn_mutex_unlock_later = FALSE;
+      error_num = spider_db_errorno(tmp_conn);
+      if (error_num == ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM)
+        my_message(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM,
+          ER_SPIDER_REMOTE_SERVER_GONE_AWAY_STR, MYF(0));
+      goto error_db_query;
+    } else {
+      SPIDER_DB_RESULT *result;
+      st_spider_db_request_key request_key;
+      request_key.spider_thread_id = copy_tables->trx->spider_thread_id;
+      request_key.query_id = copy_tables->trx->thd->query_id;
+      request_key.handler = copy_tables;
+      request_key.request_id = 1;
+      request_key.next = NULL;
+      if ((result = tmp_conn->db_conn->use_result(NULL, &request_key, &error_num)))
+      {
+        SPIDER_DB_ROW *row;
+        roop_count = 0;
+        while ((row = result->fetch_row()))
+        {
+          dst_tbl_conn = copy_tables->table_conn[1];
+          insert_ct = dst_tbl_conn->copy_table;
+          if ((error_num = insert_ct->copy_rows(table, row,
+            &last_row_pos, &last_lengths)))
+          {
+            if (error_num == HA_ERR_OUT_OF_MEM)
+              my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+            result->free_result();
+            delete result;
+            DBUG_ASSERT(tmp_conn->mta_conn_mutex_lock_already);
+            DBUG_ASSERT(tmp_conn->mta_conn_mutex_unlock_later);
+            tmp_conn->mta_conn_mutex_lock_already = FALSE;
+            tmp_conn->mta_conn_mutex_unlock_later = FALSE;
+            SPIDER_CLEAR_FILE_POS(&tmp_conn->mta_conn_mutex_file_pos);
+            pthread_mutex_unlock(&tmp_conn->mta_conn_mutex);
+            goto error_db_query;
+          }
+          for (dst_tbl_conn = dst_tbl_conn->next; dst_tbl_conn;
+            dst_tbl_conn = dst_tbl_conn->next)
+          {
+            row->first();
+            insert_ct = dst_tbl_conn->copy_table;
+            if ((error_num = insert_ct->copy_rows(table, row)))
+            {
+              if (error_num == HA_ERR_OUT_OF_MEM)
+                my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+              result->free_result();
+              delete result;
+              DBUG_ASSERT(tmp_conn->mta_conn_mutex_lock_already);
+              DBUG_ASSERT(tmp_conn->mta_conn_mutex_unlock_later);
+              tmp_conn->mta_conn_mutex_lock_already = FALSE;
+              tmp_conn->mta_conn_mutex_unlock_later = FALSE;
+              SPIDER_CLEAR_FILE_POS(&tmp_conn->mta_conn_mutex_file_pos);
+              pthread_mutex_unlock(&tmp_conn->mta_conn_mutex);
+              goto error_db_query;
+            }
+          }
+          ++roop_count;
+        }
+        error_num = result->get_errno();
+        if (error_num == HA_ERR_END_OF_FILE)
+        {
+          if (roop_count < copy_tables->bulk_insert_rows)
+          {
+            end_of_file = TRUE;
+            if (roop_count)
+              error_num = 0;
+          } else {
+            /* add next where clause */
+            select_ct->set_sql_to_pos();
+            error_num = select_ct->append_copy_where(insert_ct, key_info,
+              last_row_pos, last_lengths);
+            if (error_num)
+            {
+              if (error_num == HA_ERR_OUT_OF_MEM)
+                my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+              result->free_result();
+              delete result;
+              DBUG_ASSERT(tmp_conn->mta_conn_mutex_lock_already);
+              DBUG_ASSERT(tmp_conn->mta_conn_mutex_unlock_later);
+              tmp_conn->mta_conn_mutex_lock_already = FALSE;
+              tmp_conn->mta_conn_mutex_unlock_later = FALSE;
+              SPIDER_CLEAR_FILE_POS(&tmp_conn->mta_conn_mutex_file_pos);
+              pthread_mutex_unlock(&tmp_conn->mta_conn_mutex);
+              goto error_db_query;
+            }
+            bulk_insert_rows = spider_param_udf_ct_bulk_insert_rows(
+              copy_tables->bulk_insert_rows);
+            if (
+              select_ct->append_key_order_str(key_info, 0, FALSE) ||
+              select_ct->append_limit(0, bulk_insert_rows) ||
+              (
+                copy_tables->use_transaction &&
+                select_ct->append_select_lock_str(SPIDER_LOCK_MODE_SHARED)
+              )
+            ) {
+              my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+              result->free_result();
+              delete result;
+              DBUG_ASSERT(tmp_conn->mta_conn_mutex_lock_already);
+              DBUG_ASSERT(tmp_conn->mta_conn_mutex_unlock_later);
+              tmp_conn->mta_conn_mutex_lock_already = FALSE;
+              tmp_conn->mta_conn_mutex_unlock_later = FALSE;
+              SPIDER_CLEAR_FILE_POS(&tmp_conn->mta_conn_mutex_file_pos);
+              pthread_mutex_unlock(&tmp_conn->mta_conn_mutex);
+              error_num = ER_OUT_OF_RESOURCES;
+              goto error_db_query;
+            }
+            error_num = 0;
+          }
+        } else {
+          if (error_num == HA_ERR_OUT_OF_MEM)
+            my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+          result->free_result();
+          delete result;
+          DBUG_ASSERT(tmp_conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(tmp_conn->mta_conn_mutex_unlock_later);
+          tmp_conn->mta_conn_mutex_lock_already = FALSE;
+          tmp_conn->mta_conn_mutex_unlock_later = FALSE;
+          SPIDER_CLEAR_FILE_POS(&tmp_conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&tmp_conn->mta_conn_mutex);
+          goto error_db_query;
+        }
+        result->free_result();
+        delete result;
+        DBUG_ASSERT(tmp_conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(tmp_conn->mta_conn_mutex_unlock_later);
+        tmp_conn->mta_conn_mutex_lock_already = FALSE;
+        tmp_conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&tmp_conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&tmp_conn->mta_conn_mutex);
+        for (dst_tbl_conn = copy_tables->table_conn[1]; dst_tbl_conn;
+          dst_tbl_conn = dst_tbl_conn->next)
+        {
+          insert_ct = dst_tbl_conn->copy_table;
+          if ((error_num = insert_ct->append_insert_terminator()))
+          {
+            if (error_num == HA_ERR_OUT_OF_MEM)
+              my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+            goto error_db_query;
+          }
+        }
+      } else {
+        if (!error_num)
+        {
+          error_num = spider_db_errorno(tmp_conn);
+        }
+        if (error_num)
+        {
+          DBUG_ASSERT(tmp_conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(tmp_conn->mta_conn_mutex_unlock_later);
+          tmp_conn->mta_conn_mutex_lock_already = FALSE;
+          tmp_conn->mta_conn_mutex_unlock_later = FALSE;
+          SPIDER_CLEAR_FILE_POS(&tmp_conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&tmp_conn->mta_conn_mutex);
+          if (error_num == ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM)
+            my_message(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM,
+              ER_SPIDER_REMOTE_SERVER_GONE_AWAY_STR, MYF(0));
+          goto error_db_query;
+        }
+        error_num = HA_ERR_END_OF_FILE;
+        end_of_file = TRUE;
+        DBUG_ASSERT(tmp_conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(tmp_conn->mta_conn_mutex_unlock_later);
+        tmp_conn->mta_conn_mutex_lock_already = FALSE;
+        tmp_conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&tmp_conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&tmp_conn->mta_conn_mutex);
+      }
+    }
+
+    if (!error_num && roop_count)
+    {
+/*
+      dst_tbl_conn = copy_tables->table_conn[1];
+      spider_db_copy_table *source_ct = dst_tbl_conn->copy_table;
+      for (dst_tbl_conn = dst_tbl_conn->next; dst_tbl_conn;
+        dst_tbl_conn = dst_tbl_conn->next)
+      {
+        insert_ct = dst_tbl_conn->copy_table;
+        if (insert_ct->copy_insert_values(source_ct))
+        {
+          my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+          error_num = ER_OUT_OF_RESOURCES;
+          goto error_db_query;
+        }
+      }
+*/
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+      if (copy_tables->bg_mode)
+      {
+        for (dst_tbl_conn = copy_tables->table_conn[1]; dst_tbl_conn;
+          dst_tbl_conn = dst_tbl_conn->next)
+        {
+          if (spider_udf_bg_copy_exec_sql(dst_tbl_conn))
+          {
+            my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+            error_num = ER_OUT_OF_RESOURCES;
+            goto error_db_query;
+          }
+        }
+      } else {
+#endif
+        for (dst_tbl_conn = copy_tables->table_conn[1]; dst_tbl_conn;
+          dst_tbl_conn = dst_tbl_conn->next)
+        {
+          tmp_conn = dst_tbl_conn->conn;
+          insert_ct = dst_tbl_conn->copy_table;
+          pthread_mutex_assert_not_owner(&tmp_conn->mta_conn_mutex);
+          pthread_mutex_lock(&tmp_conn->mta_conn_mutex);
+          SPIDER_SET_FILE_POS(&tmp_conn->mta_conn_mutex_file_pos);
+          tmp_conn->need_mon = &dst_tbl_conn->need_mon;
+          DBUG_ASSERT(!tmp_conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(!tmp_conn->mta_conn_mutex_unlock_later);
+          tmp_conn->mta_conn_mutex_lock_already = TRUE;
+          tmp_conn->mta_conn_mutex_unlock_later = TRUE;
+          spider_conn_set_timeout_from_share(tmp_conn, 0,
+            copy_tables->trx->thd, dst_tbl_conn->share);
+          if (insert_ct->exec_query(
+            tmp_conn,
+            -1,
+            &dst_tbl_conn->need_mon)
+          ) {
+            DBUG_ASSERT(tmp_conn->mta_conn_mutex_lock_already);
+            DBUG_ASSERT(tmp_conn->mta_conn_mutex_unlock_later);
+            tmp_conn->mta_conn_mutex_lock_already = FALSE;
+            tmp_conn->mta_conn_mutex_unlock_later = FALSE;
+            error_num = spider_db_errorno(tmp_conn);
+            if (error_num == ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM)
+              my_message(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM,
+                ER_SPIDER_REMOTE_SERVER_GONE_AWAY_STR, MYF(0));
+            goto error_db_query;
+          } else {
+            DBUG_ASSERT(tmp_conn->mta_conn_mutex_lock_already);
+            DBUG_ASSERT(tmp_conn->mta_conn_mutex_unlock_later);
+            tmp_conn->mta_conn_mutex_lock_already = FALSE;
+            tmp_conn->mta_conn_mutex_unlock_later = FALSE;
+            SPIDER_CLEAR_FILE_POS(&tmp_conn->mta_conn_mutex_file_pos);
+            pthread_mutex_unlock(&tmp_conn->mta_conn_mutex);
+          }
+        }
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+      }
+#endif
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+      if (copy_tables->bg_mode)
+      {
+        for (dst_tbl_conn = copy_tables->table_conn[1]; dst_tbl_conn;
+          dst_tbl_conn = dst_tbl_conn->next)
+        {
+          tmp_conn = dst_tbl_conn->conn;
+          if (tmp_conn->bg_exec_sql)
+          {
+            /* wait */
+            pthread_mutex_lock(&tmp_conn->bg_conn_mutex);
+            pthread_mutex_unlock(&tmp_conn->bg_conn_mutex);
+          }
+
+          if (dst_tbl_conn->bg_error_num)
+          {
+            if (error_num == ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM)
+              my_message(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM,
+                ER_SPIDER_REMOTE_SERVER_GONE_AWAY_STR, MYF(0));
+            goto error_db_query;
+          }
+        }
+      }
+#endif
+    }
+
+    if (copy_tables->use_transaction)
+    {
+      for (roop_count = 0; roop_count < all_link_cnt; roop_count++)
+      {
+        tmp_spider = &spider[roop_count];
+        tmp_conn = tmp_spider->conns[0];
+        if (tmp_conn->trx_start)
+        {
+          if ((error_num = spider_db_commit(tmp_conn)))
+            goto error_commit;
+        }
+      }
+    } else {
+      for (roop_count = 0; roop_count < all_link_cnt; roop_count++)
+      {
+        tmp_spider = &spider[roop_count];
+        tmp_conn = tmp_spider->conns[0];
+        if (tmp_conn->table_lock == 1)
+        {
+          tmp_conn->table_lock = 0;
+          if ((error_num = spider_db_unlock_tables(tmp_spider, 0)))
+            goto error_unlock_tables;
+        }
+      }
+    }
+    if (!end_of_file)
+    {
+      for (dst_tbl_conn = copy_tables->table_conn[1]; dst_tbl_conn;
+        dst_tbl_conn = dst_tbl_conn->next)
+      {
+        insert_ct = dst_tbl_conn->copy_table;
+        insert_ct->set_sql_to_pos();
+      }
+      DBUG_PRINT("info",("spider sleep"));
+      bulk_insert_interval = spider_param_udf_ct_bulk_insert_interval(
+        copy_tables->bulk_insert_interval);
+      my_sleep(bulk_insert_interval);
+    }
+  }
+  spider_free(spider_current_trx, last_row_pos, MYF(0));
+  DBUG_RETURN(0);
+
+error_db_query:
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  if (copy_tables->bg_mode)
+  {
+    for (dst_tbl_conn = copy_tables->table_conn[1]; dst_tbl_conn;
+      dst_tbl_conn = dst_tbl_conn->next)
+    {
+      tmp_conn = dst_tbl_conn->conn;
+      if (tmp_conn->bg_exec_sql)
+      {
+        /* wait */
+        pthread_mutex_lock(&tmp_conn->bg_conn_mutex);
+        pthread_mutex_unlock(&tmp_conn->bg_conn_mutex);
+      }
+    }
+  }
+#endif
+error_unlock_tables:
+error_commit:
+error_lock_tables:
+error_lock_table_hash:
+error_start_transaction:
+error_db_ping:
+error_killed:
+  if (copy_tables->use_transaction)
+  {
+    for (roop_count = 0; roop_count < all_link_cnt; roop_count++)
+    {
+      tmp_spider = &spider[roop_count];
+      tmp_conn = tmp_spider->conns[0];
+      if (tmp_conn->trx_start)
+        spider_db_rollback(tmp_conn);
+    }
+  } else {
+    if (copy_tables->trx->locked_connections)
+    {
+      for (roop_count = 0; roop_count < all_link_cnt; roop_count++)
+      {
+        tmp_spider = &spider[roop_count];
+        tmp_conn = tmp_spider->conns[0];
+        if (tmp_conn->table_lock == 1)
+        {
+          tmp_conn->table_lock = 0;
+          spider_db_unlock_tables(tmp_spider, 0);
+        }
+      }
+    }
+  }
+error:
+  if (last_row_pos)
+  {
+    spider_free(spider_current_trx, last_row_pos, MYF(0));
+  }
+  DBUG_RETURN(error_num);
+}
+
+int spider_db_open_handler(
+  ha_spider *spider,
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  int error_num;
+  SPIDER_SHARE *share = spider->share;
+  uint *handler_id_ptr =
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    conn->conn_kind == SPIDER_CONN_KIND_MYSQL ?
+#endif
+      &spider->m_handler_id[link_idx]
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      : conn->conn_kind == SPIDER_CONN_KIND_HS_READ ?
+        &spider->r_handler_id[link_idx] :
+        &spider->w_handler_id[link_idx]
+#endif
+    ;
+  spider_db_handler *dbton_hdl = spider->dbton_handler[conn->dbton_id];
+  DBUG_ENTER("spider_db_open_handler");
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = &spider->need_mons[link_idx];
+  DBUG_ASSERT(conn->mta_conn_mutex_file_pos.file_name);
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  if (!spider->handler_opened(link_idx, conn->conn_kind))
+    *handler_id_ptr = conn->opened_handlers;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (conn->conn_kind == SPIDER_CONN_KIND_MYSQL)
+  {
+#endif
+    if (!spider->handler_opened(link_idx, conn->conn_kind))
+      my_sprintf(spider->m_handler_cid[link_idx],
+        (spider->m_handler_cid[link_idx], SPIDER_SQL_HANDLER_CID_FORMAT,
+        *handler_id_ptr));
+
+    if ((error_num = dbton_hdl->append_open_handler_part(
+      SPIDER_SQL_TYPE_HANDLER, *handler_id_ptr, conn, link_idx)))
+    {
+      goto error;
+    }
+
+    spider_conn_set_timeout_from_share(conn, link_idx,
+      spider->wide_handler->trx->thd,
+      share);
+    if (dbton_hdl->execute_sql(
+      SPIDER_SQL_TYPE_HANDLER,
+      conn,
+      -1,
+      &spider->need_mons[link_idx])
+    ) {
+      error_num = spider_db_errorno(conn);
+      goto error;
+    }
+    dbton_hdl->reset_sql(SPIDER_SQL_TYPE_HANDLER);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  } else {
+    uint reconnect = 0;
+    if (conn->hs_pre_age != conn->hs_age && conn->server_lost)
+    {
+      spider_conn_queue_connect(share, conn, link_idx);
+      reconnect |= 1;
+    }
+    if ((error_num = spider_db_conn_queue_action(conn)))
+    {
+      goto error;
+    }
+    if (conn->hs_pre_age != conn->hs_age)
+    {
+      if (conn->db_conn->ping())
+      {
+        my_printf_error(ER_SPIDER_HS_NUM, ER_SPIDER_HS_STR, MYF(0),
+          conn->db_conn->get_errno(), conn->db_conn->get_error());
+        spider->need_mons[link_idx] = ER_SPIDER_HS_NUM;
+        error_num = ER_SPIDER_HS_NUM;
+        goto error;
+      }
+      conn->opened_handlers = 0;
+      conn->db_conn->reset_opened_handler();
+      conn->hs_age = conn->hs_pre_age;
+      reconnect |= 2;
+    }
+    if (conn->conn_kind == SPIDER_CONN_KIND_HS_READ)
+    {
+      if (spider->hs_r_conn_ages[link_idx] != conn->hs_age)
+      {
+        spider->clear_handler_opened(link_idx, SPIDER_CONN_KIND_HS_READ);
+        *handler_id_ptr = conn->opened_handlers;
+      }
+    } else {
+      if (spider->hs_w_conn_ages[link_idx] != conn->hs_age)
+      {
+        spider->clear_handler_opened(link_idx, SPIDER_CONN_KIND_HS_WRITE);
+        *handler_id_ptr = conn->opened_handlers;
+      }
+    }
+
+#ifdef HA_CAN_BULK_ACCESS
+    if (!spider->is_bulk_access_clone)
+    {
+#endif
+      conn->db_conn->reset_request_queue();
+#ifdef HA_CAN_BULK_ACCESS
+    } else if (!spider->bulk_access_executing)
+    {
+      if (conn->conn_kind == SPIDER_CONN_KIND_HS_READ)
+      {
+        spider_set_bit(spider->result_list.hs_r_bulk_open_index, link_idx);
+      } else {
+        spider_set_bit(spider->result_list.hs_w_bulk_open_index, link_idx);
+      }
+    }
+#endif
+    if ((error_num = dbton_hdl->append_open_handler_part(
+      SPIDER_SQL_TYPE_OTHER_HS, *handler_id_ptr, conn, link_idx)))
+    {
+      goto error;
+    }
+#ifdef HA_CAN_BULK_ACCESS
+    if (spider->is_bulk_access_clone && !spider->bulk_access_executing)
+    {
+      spider->connection_ids[link_idx] = conn->connection_id;
+      spider_trx_add_bulk_access_conn(spider->wide_handler->trx, conn);
+    } else {
+#endif
+      spider_conn_set_timeout_from_share(conn, link_idx,
+        spider->wide_handler->trx->thd,
+        share);
+      if (dbton_hdl->execute_sql(
+        SPIDER_SQL_TYPE_SELECT_HS,
+        conn,
+        -1,
+        &spider->need_mons[link_idx])
+      ) {
+        error_num = spider_db_errorno(conn);
+        goto error;
+      }
+
+      SPIDER_DB_RESULT *result;
+      if (spider_bit_is_set(spider->db_request_phase, link_idx))
+      {
+        spider_clear_bit(spider->db_request_phase, link_idx);
+      }
+      st_spider_db_request_key request_key;
+      request_key.spider_thread_id =
+        spider->wide_handler->trx->spider_thread_id;
+      request_key.query_id = spider->wide_handler->trx->thd->query_id;
+      request_key.handler = spider;
+      request_key.request_id = spider->db_request_id[link_idx];
+      request_key.next = NULL;
+      if (!(result = conn->db_conn->use_result(spider, &request_key,
+        &error_num)))
+      {
+        if (!error_num)
+        {
+          spider_db_errorno(conn);
+          error_num = ER_SPIDER_HS_NUM;
+        }
+        goto error;
+      } else {
+        conn->ping_time = (time_t) time((time_t*) 0);
+      }
+      result->free_result();
+      delete result;
+#ifdef HA_CAN_BULK_ACCESS
+    }
+#endif
+    if (conn->conn_kind == SPIDER_CONN_KIND_HS_READ)
+    {
+      spider->r_handler_index[link_idx] = spider->active_index;
+      spider->hs_r_conn_ages[link_idx] = conn->hs_age;
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+      if (
+        spider->sql_command != SQLCOM_HS_INSERT &&
+        spider->hs_pushed_ret_fields_num < MAX_FIELDS
+      ) {
+        spider->hs_r_ret_fields_num[link_idx] =
+          spider->hs_pushed_ret_fields_num;
+        memcpy(spider->hs_r_ret_fields[link_idx], spider->hs_pushed_ret_fields,
+          sizeof(uint32) * spider->hs_pushed_ret_fields_num);
+      } else {
+        spider->hs_r_ret_fields_num[link_idx] = MAX_FIELDS;
+      }
+#endif
+    } else {
+      spider->w_handler_index[link_idx] = spider->active_index;
+      spider->hs_w_conn_ages[link_idx] = conn->hs_age;
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+      if (
+        spider->sql_command != SQLCOM_HS_INSERT &&
+        spider->hs_pushed_ret_fields_num < MAX_FIELDS
+      ) {
+        spider->hs_w_ret_fields_num[link_idx] =
+          spider->hs_pushed_ret_fields_num;
+        memcpy(spider->hs_w_ret_fields[link_idx], spider->hs_pushed_ret_fields,
+          sizeof(uint32) * spider->hs_pushed_ret_fields_num);
+      } else {
+        spider->hs_w_ret_fields_num[link_idx] = MAX_FIELDS;
+      }
+#endif
+    }
+  }
+#endif
+  if (!spider->handler_opened(link_idx, conn->conn_kind))
+  {
+    if ((error_num = dbton_hdl->insert_opened_handler(conn, link_idx)))
+      goto error;
+    conn->opened_handlers++;
+  }
+  DBUG_PRINT("info",("spider conn=%p", conn));
+  DBUG_PRINT("info",("spider opened_handlers=%u", conn->opened_handlers));
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  DBUG_RETURN(0);
+
+error:
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  DBUG_RETURN(error_num);
+}
+
+#ifdef HA_CAN_BULK_ACCESS
+int spider_db_bulk_open_handler(
+  ha_spider *spider,
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  int error_num = 0;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  bool opening_index = FALSE;
+#endif
+  DBUG_ENTER("spider_db_bulk_open_handler");
+  DBUG_PRINT("info",("spider spider=%p", spider));
+  DBUG_PRINT("info",("spider conn=%p", conn));
+  DBUG_PRINT("info",("spider link_idx=%d", link_idx));
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  DBUG_ASSERT(conn->conn_kind != SPIDER_CONN_KIND_MYSQL);
+  if (conn->conn_kind == SPIDER_CONN_KIND_HS_READ)
+  {
+    if (spider_bit_is_set(spider->result_list.hs_r_bulk_open_index, link_idx))
+    {
+      DBUG_PRINT("info",("spider SPIDER_CONN_KIND_HS_READ"));
+      spider_clear_bit(spider->result_list.hs_r_bulk_open_index, link_idx);
+      opening_index = TRUE;
+    }
+  } else {
+    if (spider_bit_is_set(spider->result_list.hs_w_bulk_open_index, link_idx))
+    {
+      DBUG_PRINT("info",("spider SPIDER_CONN_KIND_HS_WRITE"));
+      spider_clear_bit(spider->result_list.hs_w_bulk_open_index, link_idx);
+      opening_index = TRUE;
+    }
+  }
+  if (opening_index)
+  {
+    DBUG_PRINT("info",("spider conn->connection_id=%llu",
+      conn->connection_id));
+    DBUG_PRINT("info",("spider spider->connection_ids[%d]=%llu",
+      link_idx, spider->connection_ids[link_idx]));
+    if (conn->connection_id != spider->connection_ids[link_idx])
+    {
+      my_message(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM,
+        ER_SPIDER_REMOTE_SERVER_GONE_AWAY_STR, MYF(0));
+      DBUG_RETURN(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM);
+    }
+
+    bool tmp_mta_conn_mutex_unlock_later;
+    pthread_mutex_assert_owner(&conn->mta_conn_mutex);
+    tmp_mta_conn_mutex_unlock_later = conn->mta_conn_mutex_unlock_later;
+    conn->mta_conn_mutex_unlock_later = TRUE;
+    SPIDER_DB_RESULT *result;
+    if (spider_bit_is_set(spider->db_request_phase, link_idx))
+    {
+      spider_clear_bit(spider->db_request_phase, link_idx);
+    }
+    st_spider_db_request_key request_key;
+    request_key.spider_thread_id = spider->wide_handler->trx->spider_thread_id;
+    request_key.query_id = spider->wide_handler->trx->thd->query_id;
+    request_key.handler = spider;
+    request_key.request_id = spider->db_request_id[link_idx];
+    request_key.next = NULL;
+    if (!(result = conn->db_conn->use_result(spider, &request_key,
+      &error_num)))
+    {
+      if (!error_num)
+      {
+        spider_db_errorno(conn);
+        error_num = ER_SPIDER_HS_NUM;
+      }
+    } else {
+      result->free_result();
+      delete result;
+    }
+    conn->mta_conn_mutex_unlock_later = tmp_mta_conn_mutex_unlock_later;
+  }
+#endif
+  DBUG_RETURN(error_num);
+}
+#endif
+
+int spider_db_close_handler(
+  ha_spider *spider,
+  SPIDER_CONN *conn,
+  int link_idx,
+  uint tgt_conn_kind
+) {
+  int error_num;
+  spider_db_handler *dbton_hdl = spider->dbton_handler[conn->dbton_id];
+  DBUG_ENTER("spider_db_close_handler");
+  DBUG_PRINT("info",("spider conn=%p", conn));
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = &spider->need_mons[link_idx];
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  if (spider->handler_opened(link_idx, tgt_conn_kind))
+  {
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    if (conn->conn_kind == SPIDER_CONN_KIND_MYSQL)
+    {
+#endif
+      dbton_hdl->reset_sql(SPIDER_SQL_TYPE_HANDLER);
+      if ((error_num = dbton_hdl->append_close_handler_part(
+        SPIDER_SQL_TYPE_HANDLER, link_idx)))
+      {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        DBUG_RETURN(error_num);
+      }
+
+      spider_conn_set_timeout_from_share(conn, link_idx,
+        spider->wide_handler->trx->thd,
+        spider->share);
+      if (dbton_hdl->execute_sql(
+        SPIDER_SQL_TYPE_HANDLER,
+        conn,
+        -1,
+        &spider->need_mons[link_idx])
+      ) {
+        error_num = spider_db_errorno(conn);
+        goto error;
+      }
+      dbton_hdl->reset_sql(SPIDER_SQL_TYPE_HANDLER);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    } else {
+/*
+      conn->hs_conn->close();
+      conn->server_lost = TRUE;
+*/
+    }
+#endif
+    if ((error_num = dbton_hdl->delete_opened_handler(conn, link_idx)))
+      goto error;
+    conn->opened_handlers--;
+    DBUG_PRINT("info",("spider opened_handlers=%u", conn->opened_handlers));
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  DBUG_RETURN(0);
+
+error:
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  DBUG_RETURN(error_num);
+}
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+void spider_db_hs_request_buf_reset(
+  SPIDER_CONN *conn
+) {
+  DBUG_ENTER("spider_db_hs_request_buf_reset");
+  if (conn->bulk_access_requests)
+  {
+    if (conn->db_conn->is_connected())
+    {
+      conn->db_conn->reset_request_queue();
+    }
+    conn->bulk_access_requests = 0;
+  }
+  DBUG_VOID_RETURN;
+}
+#endif
+
+bool spider_db_conn_is_network_error(
+  int error_num
+) {
+  DBUG_ENTER("spider_db_conn_is_network_error");
+  if (
+    error_num == ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM ||
+    error_num == ER_CONNECT_TO_FOREIGN_DATA_SOURCE ||
+    (
+      error_num >= CR_MIN_ERROR &&
+      error_num <= CR_MAX_ERROR
+    )
+  ) {
+    DBUG_RETURN(TRUE);
+  }
+  DBUG_RETURN(FALSE);
+}
diff --git a/storage/spider/spd_db_conn.h b/storage/spider/spd_db_conn.h
new file mode 100644
index 00000000..8af820c7
--- /dev/null
+++ b/storage/spider/spd_db_conn.h
@@ -0,0 +1,1231 @@
+/* Copyright (C) 2008-2020 Kentoku Shiba
+   Copyright (C) 2019-2020 MariaDB corp
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+#define SPIDER_DB_WRAPPER_STR "mysql"
+#define SPIDER_DB_WRAPPER_LEN (sizeof(SPIDER_DB_WRAPPER_STR) - 1)
+#define SPIDER_DB_PK_NAME_STR "PRIMARY"
+#define SPIDER_DB_PK_NAME_LEN (sizeof(SPIDER_DB_PK_NAME_STR) - 1)
+#define SPIDER_DB_UNIQUE_NAME_STR "UNIQUE"
+#define SPIDER_DB_UNIQUE_NAME_LEN (sizeof(SPIDER_DB_UNIQUE_NAME_STR) - 1)
+#define SPIDER_DB_KEY_NAME_STR "KEY"
+#define SPIDER_DB_KEY_NAME_LEN (sizeof(SPIDER_DB_KEY_NAME_STR) - 1)
+#define SPIDER_DB_SEQUENCE_NAME_STR ""
+#define SPIDER_DB_SEQUENCE_NAME_LEN (sizeof(SPIDER_DB_SEQUENCE_NAME_STR) - 1)
+
+#define SPIDER_DB_TABLE_LOCK_READ_LOCAL         0
+#define SPIDER_DB_TABLE_LOCK_READ               1
+#define SPIDER_DB_TABLE_LOCK_LOW_PRIORITY_WRITE 2
+#define SPIDER_DB_TABLE_LOCK_WRITE              3
+
+#define SPIDER_DB_INSERT_REPLACE       (1 << 0)
+#define SPIDER_DB_INSERT_IGNORE        (1 << 1)
+#define SPIDER_DB_INSERT_LOW_PRIORITY  (1 << 2)
+#define SPIDER_DB_INSERT_HIGH_PRIORITY (1 << 3)
+#define SPIDER_DB_INSERT_DELAYED       (1 << 4)
+
+#define SPIDER_SQL_OPEN_PAREN_STR "("
+#define SPIDER_SQL_OPEN_PAREN_LEN (sizeof(SPIDER_SQL_OPEN_PAREN_STR) - 1)
+#define SPIDER_SQL_CLOSE_PAREN_STR ")"
+#define SPIDER_SQL_CLOSE_PAREN_LEN (sizeof(SPIDER_SQL_CLOSE_PAREN_STR) - 1)
+#define SPIDER_SQL_OPEN_BRACE_STR "{"
+#define SPIDER_SQL_OPEN_BRACE_LEN (sizeof(SPIDER_SQL_OPEN_BRACE_STR) - 1)
+#define SPIDER_SQL_CLOSE_BRACE_STR "}"
+#define SPIDER_SQL_CLOSE_BRACE_LEN (sizeof(SPIDER_SQL_CLOSE_BRACE_STR) - 1)
+#define SPIDER_SQL_COMMA_STR ","
+#define SPIDER_SQL_COMMA_LEN (sizeof(SPIDER_SQL_COMMA_STR) - 1)
+#define SPIDER_SQL_UNION_ALL_STR ")union all("
+#define SPIDER_SQL_UNION_ALL_LEN (sizeof(SPIDER_SQL_UNION_ALL_STR) - 1)
+#define SPIDER_SQL_NULL_STR "null"
+#define SPIDER_SQL_NULL_LEN (sizeof(SPIDER_SQL_NULL_STR) - 1)
+#define SPIDER_SQL_GT_STR " > "
+#define SPIDER_SQL_GT_LEN (sizeof(SPIDER_SQL_GT_STR) - 1)
+#define SPIDER_SQL_GTEQUAL_STR " >= "
+#define SPIDER_SQL_GTEQUAL_LEN (sizeof(SPIDER_SQL_GTEQUAL_STR) - 1)
+#define SPIDER_SQL_LT_STR " < "
+#define SPIDER_SQL_LT_LEN (sizeof(SPIDER_SQL_LT_STR) - 1)
+#define SPIDER_SQL_LTEQUAL_STR " <= "
+#define SPIDER_SQL_LTEQUAL_LEN (sizeof(SPIDER_SQL_LTEQUAL_STR) - 1)
+
+#define SPIDER_SQL_ID_STR "id"
+#define SPIDER_SQL_ID_LEN (sizeof(SPIDER_SQL_ID_STR) - 1)
+#define SPIDER_SQL_TMP_BKA_ENGINE_STR "memory"
+#define SPIDER_SQL_TMP_BKA_ENGINE_LEN (sizeof(SPIDER_SQL_TMP_BKA_ENGINE_STR) - 1)
+
+#define SPIDER_SQL_INSERT_STR "insert "
+#define SPIDER_SQL_INSERT_LEN (sizeof(SPIDER_SQL_INSERT_STR) - 1)
+#define SPIDER_SQL_REPLACE_STR "replace "
+#define SPIDER_SQL_REPLACE_LEN (sizeof(SPIDER_SQL_REPLACE_STR) - 1)
+#define SPIDER_SQL_SELECT_STR "select "
+#define SPIDER_SQL_SELECT_LEN (sizeof(SPIDER_SQL_SELECT_STR) - 1)
+#define SPIDER_SQL_UPDATE_STR "update "
+#define SPIDER_SQL_UPDATE_LEN (sizeof(SPIDER_SQL_UPDATE_STR) - 1)
+#define SPIDER_SQL_DELETE_STR "delete "
+#define SPIDER_SQL_DELETE_LEN (sizeof(SPIDER_SQL_DELETE_STR) - 1)
+#define SPIDER_SQL_DISTINCT_STR "distinct "
+#define SPIDER_SQL_DISTINCT_LEN (sizeof(SPIDER_SQL_DISTINCT_STR) - 1)
+#define SPIDER_SQL_HIGH_PRIORITY_STR "high_priority "
+#define SPIDER_SQL_HIGH_PRIORITY_LEN (sizeof(SPIDER_SQL_HIGH_PRIORITY_STR) - 1)
+#define SPIDER_SQL_LOW_PRIORITY_STR "low_priority "
+#define SPIDER_SQL_LOW_PRIORITY_LEN (sizeof(SPIDER_SQL_LOW_PRIORITY_STR) - 1)
+#define SPIDER_SQL_SQL_DELAYED_STR "delayed "
+#define SPIDER_SQL_SQL_DELAYED_LEN (sizeof(SPIDER_SQL_SQL_DELAYED_STR) - 1)
+#define SPIDER_SQL_SQL_IGNORE_STR "ignore "
+#define SPIDER_SQL_SQL_IGNORE_LEN (sizeof(SPIDER_SQL_SQL_IGNORE_STR) - 1)
+#define SPIDER_SQL_FROM_STR " from "
+#define SPIDER_SQL_FROM_LEN (sizeof(SPIDER_SQL_FROM_STR) - 1)
+#define SPIDER_SQL_WHERE_STR " where "
+#define SPIDER_SQL_WHERE_LEN (sizeof(SPIDER_SQL_WHERE_STR) - 1)
+#define SPIDER_SQL_OR_STR " or "
+#define SPIDER_SQL_OR_LEN (sizeof(SPIDER_SQL_OR_STR) - 1)
+#define SPIDER_SQL_ORDER_STR " order by "
+#define SPIDER_SQL_ORDER_LEN (sizeof(SPIDER_SQL_ORDER_STR) - 1)
+#define SPIDER_SQL_DESC_STR " desc"
+#define SPIDER_SQL_DESC_LEN (sizeof(SPIDER_SQL_DESC_STR) - 1)
+#define SPIDER_SQL_LIMIT_STR " limit "
+#define SPIDER_SQL_LIMIT_LEN (sizeof(SPIDER_SQL_LIMIT_STR) - 1)
+#define SPIDER_SQL_INTO_STR "into "
+#define SPIDER_SQL_INTO_LEN (sizeof(SPIDER_SQL_INTO_STR) - 1)
+#define SPIDER_SQL_VALUES_STR "values"
+#define SPIDER_SQL_VALUES_LEN (sizeof(SPIDER_SQL_VALUES_STR) - 1)
+#define SPIDER_SQL_SHARED_LOCK_STR " lock in share mode"
+#define SPIDER_SQL_SHARED_LOCK_LEN (sizeof(SPIDER_SQL_SHARED_LOCK_STR) - 1)
+#define SPIDER_SQL_FOR_UPDATE_STR " for update"
+#define SPIDER_SQL_FOR_UPDATE_LEN (sizeof(SPIDER_SQL_FOR_UPDATE_STR) - 1)
+
+#define SPIDER_SQL_SQL_ALTER_TABLE_STR "alter table "
+#define SPIDER_SQL_SQL_ALTER_TABLE_LEN (sizeof(SPIDER_SQL_SQL_ALTER_TABLE_STR) - 1)
+#define SPIDER_SQL_SQL_DISABLE_KEYS_STR " disable keys"
+#define SPIDER_SQL_SQL_DISABLE_KEYS_LEN (sizeof(SPIDER_SQL_SQL_DISABLE_KEYS_STR) - 1)
+#define SPIDER_SQL_SQL_ENABLE_KEYS_STR " enable keys"
+#define SPIDER_SQL_SQL_ENABLE_KEYS_LEN (sizeof(SPIDER_SQL_SQL_ENABLE_KEYS_STR) - 1)
+#define SPIDER_SQL_SQL_CHECK_TABLE_STR "check table "
+#define SPIDER_SQL_SQL_CHECK_TABLE_LEN (sizeof(SPIDER_SQL_SQL_CHECK_TABLE_STR) - 1)
+#define SPIDER_SQL_SQL_ANALYZE_STR "analyze "
+#define SPIDER_SQL_SQL_ANALYZE_LEN (sizeof(SPIDER_SQL_SQL_ANALYZE_STR) - 1)
+#define SPIDER_SQL_SQL_OPTIMIZE_STR "optimize "
+#define SPIDER_SQL_SQL_OPTIMIZE_LEN (sizeof(SPIDER_SQL_SQL_OPTIMIZE_STR) - 1)
+#define SPIDER_SQL_SQL_REPAIR_STR "repair "
+#define SPIDER_SQL_SQL_REPAIR_LEN (sizeof(SPIDER_SQL_SQL_REPAIR_STR) - 1)
+#define SPIDER_SQL_SQL_TABLE_STR "table "
+#define SPIDER_SQL_SQL_TABLE_LEN (sizeof(SPIDER_SQL_SQL_TABLE_STR) - 1)
+#define SPIDER_SQL_SQL_QUICK_STR " quick"
+#define SPIDER_SQL_SQL_QUICK_LEN (sizeof(SPIDER_SQL_SQL_QUICK_STR) - 1)
+#define SPIDER_SQL_SQL_FAST_STR " fast"
+#define SPIDER_SQL_SQL_FAST_LEN (sizeof(SPIDER_SQL_SQL_FAST_STR) - 1)
+#define SPIDER_SQL_SQL_MEDIUM_STR " medium"
+#define SPIDER_SQL_SQL_MEDIUM_LEN (sizeof(SPIDER_SQL_SQL_MEDIUM_STR) - 1)
+#define SPIDER_SQL_SQL_EXTENDED_STR " extended"
+#define SPIDER_SQL_SQL_EXTENDED_LEN (sizeof(SPIDER_SQL_SQL_EXTENDED_STR) - 1)
+#define SPIDER_SQL_SQL_LOCAL_STR "local "
+#define SPIDER_SQL_SQL_LOCAL_LEN (sizeof(SPIDER_SQL_SQL_LOCAL_STR) - 1)
+#define SPIDER_SQL_SQL_USE_FRM_STR " use_frm"
+#define SPIDER_SQL_SQL_USE_FRM_LEN (sizeof(SPIDER_SQL_SQL_USE_FRM_STR) - 1)
+#define SPIDER_SQL_TRUNCATE_TABLE_STR "truncate table "
+#define SPIDER_SQL_TRUNCATE_TABLE_LEN (sizeof(SPIDER_SQL_TRUNCATE_TABLE_STR) - 1)
+#define SPIDER_SQL_EXPLAIN_SELECT_STR "explain select 1 "
+#define SPIDER_SQL_EXPLAIN_SELECT_LEN sizeof(SPIDER_SQL_EXPLAIN_SELECT_STR) - 1
+#define SPIDER_SQL_FLUSH_LOGS_STR "flush logs"
+#define SPIDER_SQL_FLUSH_LOGS_LEN sizeof(SPIDER_SQL_FLUSH_LOGS_STR) - 1
+#define SPIDER_SQL_FLUSH_TABLES_STR "flush tables"
+#define SPIDER_SQL_FLUSH_TABLES_LEN sizeof(SPIDER_SQL_FLUSH_TABLES_STR) - 1
+#define SPIDER_SQL_WITH_READ_LOCK_STR " with read lock"
+#define SPIDER_SQL_WITH_READ_LOCK_LEN sizeof(SPIDER_SQL_WITH_READ_LOCK_STR) - 1
+#define SPIDER_SQL_DUPLICATE_KEY_UPDATE_STR " on duplicate key update "
+#define SPIDER_SQL_DUPLICATE_KEY_UPDATE_LEN (sizeof(SPIDER_SQL_DUPLICATE_KEY_UPDATE_STR) - 1)
+#define SPIDER_SQL_HANDLER_STR "handler "
+#define SPIDER_SQL_HANDLER_LEN (sizeof(SPIDER_SQL_HANDLER_STR) - 1)
+#define SPIDER_SQL_OPEN_STR " open "
+#define SPIDER_SQL_OPEN_LEN (sizeof(SPIDER_SQL_OPEN_STR) - 1)
+#define SPIDER_SQL_CLOSE_STR " close "
+#define SPIDER_SQL_CLOSE_LEN (sizeof(SPIDER_SQL_CLOSE_STR) - 1)
+#define SPIDER_SQL_READ_STR " read "
+#define SPIDER_SQL_READ_LEN (sizeof(SPIDER_SQL_READ_STR) - 1)
+#define SPIDER_SQL_FIRST_STR " first "
+#define SPIDER_SQL_FIRST_LEN (sizeof(SPIDER_SQL_FIRST_STR) - 1)
+#define SPIDER_SQL_NEXT_STR " next  "
+#define SPIDER_SQL_NEXT_LEN (sizeof(SPIDER_SQL_NEXT_STR) - 1)
+#define SPIDER_SQL_PREV_STR " prev  "
+#define SPIDER_SQL_PREV_LEN (sizeof(SPIDER_SQL_PREV_STR) - 1)
+#define SPIDER_SQL_LAST_STR " last  "
+#define SPIDER_SQL_LAST_LEN (sizeof(SPIDER_SQL_LAST_STR) - 1)
+#define SPIDER_SQL_AS_STR "as "
+#define SPIDER_SQL_AS_LEN (sizeof(SPIDER_SQL_AS_STR) - 1)
+#define SPIDER_SQL_WITH_QUERY_EXPANSION_STR " with query expansion"
+#define SPIDER_SQL_WITH_QUERY_EXPANSION_LEN (sizeof(SPIDER_SQL_WITH_QUERY_EXPANSION_STR) - 1)
+#define SPIDER_SQL_IN_BOOLEAN_MODE_STR " in boolean mode"
+#define SPIDER_SQL_IN_BOOLEAN_MODE_LEN (sizeof(SPIDER_SQL_IN_BOOLEAN_MODE_STR) - 1)
+#define SPIDER_SQL_MATCH_STR "match("
+#define SPIDER_SQL_MATCH_LEN (sizeof(SPIDER_SQL_MATCH_STR) - 1)
+#define SPIDER_SQL_AGAINST_STR ")against("
+#define SPIDER_SQL_AGAINST_LEN (sizeof(SPIDER_SQL_AGAINST_STR) - 1)
+#define SPIDER_SQL_IS_NULL_STR " is null"
+#define SPIDER_SQL_IS_NULL_LEN (sizeof(SPIDER_SQL_IS_NULL_STR) - 1)
+#define SPIDER_SQL_IS_NOT_NULL_STR " is not null"
+#define SPIDER_SQL_IS_NOT_NULL_LEN (sizeof(SPIDER_SQL_IS_NOT_NULL_STR) - 1)
+#define SPIDER_SQL_NOT_NULL_STR " not null"
+#define SPIDER_SQL_NOT_NULL_LEN (sizeof(SPIDER_SQL_NOT_NULL_STR) - 1)
+#define SPIDER_SQL_DEFAULT_STR " default "
+#define SPIDER_SQL_DEFAULT_LEN (sizeof(SPIDER_SQL_DEFAULT_STR) - 1)
+#define SPIDER_SQL_SPACE_STR " "
+#define SPIDER_SQL_SPACE_LEN (sizeof(SPIDER_SQL_SPACE_STR) - 1)
+#define SPIDER_SQL_ONE_STR "1"
+#define SPIDER_SQL_ONE_LEN sizeof(SPIDER_SQL_ONE_STR) - 1
+#define SPIDER_SQL_SQL_CACHE_STR "sql_cache "
+#define SPIDER_SQL_SQL_CACHE_LEN (sizeof(SPIDER_SQL_SQL_CACHE_STR) - 1)
+#define SPIDER_SQL_SQL_NO_CACHE_STR "sql_no_cache "
+#define SPIDER_SQL_SQL_NO_CACHE_LEN (sizeof(SPIDER_SQL_SQL_NO_CACHE_STR) - 1)
+#define SPIDER_SQL_SQL_QUICK_MODE_STR "quick "
+#define SPIDER_SQL_SQL_QUICK_MODE_LEN (sizeof(SPIDER_SQL_SQL_QUICK_MODE_STR) - 1)
+#define SPIDER_SQL_SET_STR " set "
+#define SPIDER_SQL_SET_LEN (sizeof(SPIDER_SQL_SET_STR) - 1)
+#define SPIDER_SQL_UNDERSCORE_STR "_"
+#define SPIDER_SQL_UNDERSCORE_LEN sizeof(SPIDER_SQL_UNDERSCORE_STR) - 1
+#define SPIDER_SQL_PF_EQUAL_STR " <=> "
+#define SPIDER_SQL_PF_EQUAL_LEN (sizeof(SPIDER_SQL_PF_EQUAL_STR) - 1)
+#define SPIDER_SQL_GROUP_STR " group by "
+#define SPIDER_SQL_GROUP_LEN (sizeof(SPIDER_SQL_GROUP_STR) - 1)
+#define SPIDER_SQL_HAVING_STR " having "
+#define SPIDER_SQL_HAVING_LEN (sizeof(SPIDER_SQL_HAVING_STR) - 1)
+#define SPIDER_SQL_PLUS_STR " + "
+#define SPIDER_SQL_PLUS_LEN (sizeof(SPIDER_SQL_PLUS_STR) - 1)
+#define SPIDER_SQL_MINUS_STR " - "
+#define SPIDER_SQL_MINUS_LEN (sizeof(SPIDER_SQL_MINUS_STR) - 1)
+
+#define SPIDER_SQL_YEAR_STR "year"
+#define SPIDER_SQL_YEAR_LEN (sizeof(SPIDER_SQL_YEAR_STR) - 1)
+#define SPIDER_SQL_QUARTER_STR "quarter"
+#define SPIDER_SQL_QUARTER_LEN (sizeof(SPIDER_SQL_QUARTER_STR) - 1)
+#define SPIDER_SQL_MONTH_STR "month"
+#define SPIDER_SQL_MONTH_LEN (sizeof(SPIDER_SQL_MONTH_STR) - 1)
+#define SPIDER_SQL_WEEK_STR "week"
+#define SPIDER_SQL_WEEK_LEN (sizeof(SPIDER_SQL_WEEK_STR) - 1)
+#define SPIDER_SQL_DAY_STR "day"
+#define SPIDER_SQL_DAY_LEN (sizeof(SPIDER_SQL_DAY_STR) - 1)
+#define SPIDER_SQL_HOUR_STR "hour"
+#define SPIDER_SQL_HOUR_LEN (sizeof(SPIDER_SQL_HOUR_STR) - 1)
+#define SPIDER_SQL_MINUTE_STR "minute"
+#define SPIDER_SQL_MINUTE_LEN (sizeof(SPIDER_SQL_MINUTE_STR) - 1)
+#define SPIDER_SQL_SECOND_STR "second"
+#define SPIDER_SQL_SECOND_LEN (sizeof(SPIDER_SQL_SECOND_STR) - 1)
+#define SPIDER_SQL_MICROSECOND_STR "microsecond"
+#define SPIDER_SQL_MICROSECOND_LEN (sizeof(SPIDER_SQL_MICROSECOND_STR) - 1)
+
+#define SPIDER_SQL_SHOW_RECORDS_STR "select count(*) from "
+#define SPIDER_SQL_SHOW_RECORDS_LEN sizeof(SPIDER_SQL_SHOW_RECORDS_STR) - 1
+#define SPIDER_SQL_SHOW_INDEX_STR "show index from "
+#define SPIDER_SQL_SHOW_INDEX_LEN sizeof(SPIDER_SQL_SHOW_INDEX_STR) - 1
+#define SPIDER_SQL_SELECT_STATISTICS_STR "select `column_name`,`cardinality` from `information_schema`.`statistics` where `table_schema` = "
+#define SPIDER_SQL_SELECT_STATISTICS_LEN sizeof(SPIDER_SQL_SELECT_STATISTICS_STR) - 1
+#define SPIDER_SQL_MAX_STR "max"
+#define SPIDER_SQL_MAX_LEN sizeof(SPIDER_SQL_MAX_STR) - 1
+
+#define SPIDER_SQL_DROP_TMP_STR "drop temporary table if exists "
+#define SPIDER_SQL_DROP_TMP_LEN (sizeof(SPIDER_SQL_DROP_TMP_STR) - 1)
+#define SPIDER_SQL_CREATE_TMP_STR "create temporary table "
+#define SPIDER_SQL_CREATE_TMP_LEN (sizeof(SPIDER_SQL_CREATE_TMP_STR) - 1)
+#define SPIDER_SQL_TMP_BKA_STR "tmp_spider_bka_"
+#define SPIDER_SQL_TMP_BKA_LEN (sizeof(SPIDER_SQL_TMP_BKA_STR) - 1)
+#define SPIDER_SQL_ENGINE_STR ")engine="
+#define SPIDER_SQL_ENGINE_LEN (sizeof(SPIDER_SQL_ENGINE_STR) - 1)
+#define SPIDER_SQL_DEF_CHARSET_STR " default charset="
+#define SPIDER_SQL_DEF_CHARSET_LEN (sizeof(SPIDER_SQL_DEF_CHARSET_STR) - 1)
+#define SPIDER_SQL_ID_TYPE_STR " bigint"
+#define SPIDER_SQL_ID_TYPE_LEN (sizeof(SPIDER_SQL_ID_TYPE_STR) - 1)
+
+#define SPIDER_SQL_COLUMN_NAME_STR "`column_name`"
+#define SPIDER_SQL_COLUMN_NAME_LEN sizeof(SPIDER_SQL_COLUMN_NAME_STR) - 1
+
+#define SPIDER_SQL_A_DOT_STR "a."
+#define SPIDER_SQL_A_DOT_LEN (sizeof(SPIDER_SQL_A_DOT_STR) - 1)
+#define SPIDER_SQL_B_DOT_STR "b."
+#define SPIDER_SQL_B_DOT_LEN (sizeof(SPIDER_SQL_B_DOT_STR) - 1)
+#define SPIDER_SQL_A_STR "a"
+#define SPIDER_SQL_A_LEN (sizeof(SPIDER_SQL_A_STR) - 1)
+#define SPIDER_SQL_B_STR "b"
+#define SPIDER_SQL_B_LEN (sizeof(SPIDER_SQL_B_STR) - 1)
+
+#define SPIDER_SQL_TRIM_STR "trim"
+#define SPIDER_SQL_TRIM_LEN sizeof(SPIDER_SQL_TRIM_STR) - 1
+#define SPIDER_SQL_TRIM_BOTH_STR "both "
+#define SPIDER_SQL_TRIM_BOTH_LEN sizeof(SPIDER_SQL_TRIM_BOTH_STR) - 1
+#define SPIDER_SQL_TRIM_LEADING_STR "leading "
+#define SPIDER_SQL_TRIM_LEADING_LEN sizeof(SPIDER_SQL_TRIM_LEADING_STR) - 1
+#define SPIDER_SQL_TRIM_TRAILING_STR "trailing "
+#define SPIDER_SQL_TRIM_TRAILING_LEN sizeof(SPIDER_SQL_TRIM_TRAILING_STR) - 1
+
+#define SPIDER_SQL_INDEX_IGNORE_STR " IGNORE INDEX "
+#define SPIDER_SQL_INDEX_IGNORE_LEN (sizeof(SPIDER_SQL_INDEX_IGNORE_STR) - 1)
+#define SPIDER_SQL_INDEX_USE_STR " USE INDEX "
+#define SPIDER_SQL_INDEX_USE_LEN (sizeof(SPIDER_SQL_INDEX_USE_STR) - 1)
+#define SPIDER_SQL_INDEX_FORCE_STR " FORCE INDEX "
+#define SPIDER_SQL_INDEX_FORCE_LEN (sizeof(SPIDER_SQL_INDEX_FORCE_STR) - 1)
+
+#define SPIDER_SQL_INT_LEN 20
+#define SPIDER_SQL_HANDLER_CID_LEN 6
+#define SPIDER_SQL_HANDLER_CID_FORMAT "t%05u"
+#define SPIDER_UDF_PING_TABLE_PING_ONLY                (1 << 0)
+#define SPIDER_UDF_PING_TABLE_USE_WHERE                (1 << 1)
+#define SPIDER_UDF_PING_TABLE_USE_ALL_MONITORING_NODES (1 << 2)
+
+int spider_db_connect(
+  const SPIDER_SHARE *share,
+  SPIDER_CONN *conn,
+  int link_idx
+);
+
+int spider_db_ping_internal(
+  SPIDER_SHARE *share,
+  SPIDER_CONN *conn,
+  int all_link_idx,
+  int *need_mon
+);
+
+int spider_db_ping(
+  ha_spider *spider,
+  SPIDER_CONN *conn,
+  int link_idx
+);
+
+void spider_db_disconnect(
+  SPIDER_CONN *conn
+);
+
+int spider_db_conn_queue_action(
+  SPIDER_CONN *conn
+);
+
+int spider_db_before_query(
+  SPIDER_CONN *conn,
+  int *need_mon
+);
+
+int spider_db_query(
+  SPIDER_CONN *conn,
+  const char *query,
+  uint length,
+  int quick_mode,
+  int *need_mon
+);
+
+int spider_db_errorno(
+  SPIDER_CONN *conn
+);
+
+int spider_db_set_trx_isolation(
+  SPIDER_CONN *conn,
+  int trx_isolation,
+  int *need_mon
+);
+
+int spider_db_set_names_internal(
+  SPIDER_TRX *trx,
+  SPIDER_SHARE *share,
+  SPIDER_CONN *conn,
+  int all_link_idx,
+  int *need_mon
+);
+
+int spider_db_set_names(
+  ha_spider *spider,
+  SPIDER_CONN *conn,
+  int link_idx
+);
+
+int spider_db_query_with_set_names(
+  ulong sql_type,
+  ha_spider *spider,
+  SPIDER_CONN *conn,
+  int link_idx
+);
+
+int spider_db_query_for_bulk_update(
+  ha_spider *spider,
+  SPIDER_CONN *conn,
+  int link_idx,
+  ha_rows *dup_key_found
+);
+
+size_t spider_db_real_escape_string(
+  SPIDER_CONN *conn,
+  char *to,
+  const char *from,
+  size_t from_length
+);
+
+int spider_db_consistent_snapshot(
+  SPIDER_CONN *conn,
+  int *need_mon
+);
+
+int spider_db_start_transaction(
+  SPIDER_CONN *conn,
+  int *need_mon
+);
+
+int spider_db_commit(
+  SPIDER_CONN *conn
+);
+
+int spider_db_rollback(
+  SPIDER_CONN *conn
+);
+
+int spider_db_append_hex_string(
+  spider_string *str,
+  uchar *hex_ptr,
+  int hex_ptr_length
+);
+
+void spider_db_append_xid_str(
+  spider_string *tmp_str,
+  XID *xid
+);
+
+int spider_db_xa_end(
+  SPIDER_CONN *conn,
+  XID *xid
+);
+
+int spider_db_xa_prepare(
+  SPIDER_CONN *conn,
+  XID *xid
+);
+
+int spider_db_xa_commit(
+  SPIDER_CONN *conn,
+  XID *xid
+);
+
+int spider_db_xa_rollback(
+  SPIDER_CONN *conn,
+  XID *xid
+);
+
+int spider_db_lock_tables(
+  ha_spider *spider,
+  int link_idx
+);
+
+int spider_db_unlock_tables(
+  ha_spider *spider,
+  int link_idx
+);
+
+int spider_db_append_name_with_quote_str(
+  spider_string *str,
+  const char *name,
+  uint dbton_id
+);
+
+int spider_db_append_name_with_quote_str(
+  spider_string *str,
+  LEX_CSTRING &name,
+  uint dbton_id
+);
+
+int spider_db_append_name_with_quote_str_internal(
+  spider_string *str,
+  const char *name,
+  int length,
+  uint dbton_id
+);
+
+int spider_db_append_name_with_quote_str_internal(
+  spider_string *str,
+  const char *name,
+  int length,
+  CHARSET_INFO *cs,
+  uint dbton_id
+);
+
+int spider_db_append_select(
+  ha_spider *spider
+);
+
+int spider_db_append_select_columns(
+  ha_spider *spider
+);
+
+int spider_db_append_null_value(
+  spider_string *str,
+  KEY_PART_INFO *key_part,
+  const uchar **ptr
+);
+
+int spider_db_append_key_columns(
+  const key_range *start_key,
+  ha_spider *spider,
+  spider_string *str
+);
+
+int spider_db_append_key_hint(
+  spider_string *str,
+  char *hint_str
+);
+
+int spider_db_append_key_where_internal(
+  spider_string *str,
+  spider_string *str_part,
+  spider_string *str_part2,
+  const key_range *start_key,
+  const key_range *end_key,
+  ha_spider *spider,
+  bool set_order,
+  ulong sql_type,
+  uint dbton_id
+);
+
+int spider_db_append_key_where(
+  const key_range *start_key,
+  const key_range *end_key,
+  ha_spider *spider
+);
+
+int spider_db_append_charset_name_before_string(
+  spider_string *str,
+  CHARSET_INFO *cs
+);
+
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+int spider_db_refetch_for_item_sum_funcs(
+  ha_spider *spider
+);
+
+int spider_db_fetch_for_item_sum_funcs(
+  SPIDER_DB_ROW *row,
+  ha_spider *spider
+);
+
+int spider_db_fetch_for_item_sum_func(
+  SPIDER_DB_ROW *row,
+  Item_sum *item_sum,
+  ha_spider *spider
+);
+#endif
+
+int spider_db_append_match_fetch(
+  ha_spider *spider,
+  st_spider_ft_info *ft_first,
+  st_spider_ft_info *ft_current,
+  SPIDER_DB_ROW *row
+);
+
+int spider_db_append_match_where(
+  ha_spider *spider
+);
+
+int spider_db_append_hint_after_table(
+  ha_spider *spider,
+  spider_string *str,
+  spider_string *hint
+);
+
+int spider_db_append_show_records(
+  SPIDER_SHARE *share
+);
+
+void spider_db_free_show_records(
+  SPIDER_SHARE *share
+);
+
+int spider_db_append_show_index(
+  SPIDER_SHARE *share
+);
+
+void spider_db_free_show_index(
+  SPIDER_SHARE *share
+);
+
+void spider_db_append_handler_next(
+  ha_spider *spider
+);
+
+void spider_db_get_row_from_tmp_tbl_rec(
+  SPIDER_RESULT *current,
+  SPIDER_DB_ROW **row
+);
+
+int spider_db_get_row_from_tmp_tbl(
+  SPIDER_RESULT *current,
+  SPIDER_DB_ROW **row
+);
+
+int spider_db_get_row_from_tmp_tbl_pos(
+  SPIDER_POSITION *pos,
+  SPIDER_DB_ROW **row
+);
+
+int spider_db_fetch_row(
+  SPIDER_SHARE *share,
+  Field *field,
+  SPIDER_DB_ROW *row,
+  my_ptrdiff_t ptr_diff
+);
+
+int spider_db_fetch_table(
+  ha_spider *spider,
+  uchar *buf,
+  TABLE *table,
+  SPIDER_RESULT_LIST *result_list
+);
+
+int spider_db_fetch_key(
+  ha_spider *spider,
+  uchar *buf,
+  TABLE *table,
+  const KEY *key_info,
+  SPIDER_RESULT_LIST *result_list
+);
+
+int spider_db_fetch_minimum_columns(
+  ha_spider *spider,
+  uchar *buf,
+  TABLE *table,
+  SPIDER_RESULT_LIST *result_list
+);
+
+void spider_db_free_one_result_for_start_next(
+  ha_spider *spider
+);
+
+void spider_db_free_one_result(
+  SPIDER_RESULT_LIST *result_list,
+  SPIDER_RESULT *result
+);
+
+void spider_db_free_one_quick_result(
+  SPIDER_RESULT *result
+);
+
+int spider_db_free_result(
+  ha_spider *spider,
+  bool final
+);
+
+int spider_db_store_result(
+  ha_spider *spider,
+  int link_idx,
+  TABLE *table
+);
+
+int spider_db_store_result_for_reuse_cursor(
+  ha_spider *spider,
+  int link_idx,
+  TABLE *table
+);
+
+void spider_db_discard_result(
+  ha_spider *spider,
+  int link_idx,
+  SPIDER_CONN *conn
+);
+
+void spider_db_discard_multiple_result(
+  ha_spider *spider,
+  int link_idx,
+  SPIDER_CONN *conn
+);
+
+#ifdef HA_CAN_BULK_ACCESS
+int spider_db_bulk_store_result(
+  ha_spider *spider,
+  SPIDER_CONN *conn,
+  int link_idx,
+  bool discard_result
+);
+#endif
+
+int spider_db_fetch(
+  uchar *buf,
+  ha_spider *spider,
+  TABLE *table
+);
+
+int spider_db_seek_prev(
+  uchar *buf,
+  ha_spider *spider,
+  TABLE *table
+);
+
+int spider_db_seek_next(
+  uchar *buf,
+  ha_spider *spider,
+  int link_idx,
+  TABLE *table
+);
+
+int spider_db_seek_last(
+  uchar *buf,
+  ha_spider *spider,
+  int link_idx,
+  TABLE *table
+);
+
+int spider_db_seek_first(
+  uchar *buf,
+  ha_spider *spider,
+  TABLE *table
+);
+
+void spider_db_set_pos_to_first_row(
+  SPIDER_RESULT_LIST *result_list
+);
+
+void spider_db_create_position(
+  ha_spider *spider,
+  SPIDER_POSITION *pos
+);
+
+int spider_db_seek_tmp(
+  uchar *buf,
+  SPIDER_POSITION *pos,
+  ha_spider *spider,
+  TABLE *table
+);
+
+int spider_db_seek_tmp_table(
+  uchar *buf,
+  SPIDER_POSITION *pos,
+  ha_spider *spider,
+  TABLE *table
+);
+
+int spider_db_seek_tmp_key(
+  uchar *buf,
+  SPIDER_POSITION *pos,
+  ha_spider *spider,
+  TABLE *table,
+  const KEY *key_info
+);
+
+int spider_db_seek_tmp_minimum_columns(
+  uchar *buf,
+  SPIDER_POSITION *pos,
+  ha_spider *spider,
+  TABLE *table
+);
+
+int spider_db_show_table_status(
+  ha_spider *spider,
+  int link_idx,
+  int sts_mode,
+  uint flag
+);
+
+int spider_db_simple_action(
+  uint simple_action,
+  spider_db_handler *db_handler,
+  int link_idx
+);
+
+int spider_db_simple_action(
+  uint simple_action,
+  ha_spider *spider,
+  int link_idx,
+  bool pre_call
+);
+
+void spider_db_set_cardinarity(
+  ha_spider *spider,
+  TABLE *table
+);
+
+int spider_db_show_index(
+  ha_spider *spider,
+  int link_idx,
+  TABLE *table,
+  int crd_mode
+);
+
+ha_rows spider_db_explain_select(
+  const key_range *start_key,
+  const key_range *end_key,
+  ha_spider *spider,
+  int link_idx
+);
+
+int spider_db_bulk_insert_init(
+  ha_spider *spider,
+  const TABLE *table
+);
+
+int spider_db_bulk_insert(
+  ha_spider *spider,
+  TABLE *table,
+  ha_copy_info *copy_info,
+  bool bulk_end
+);
+
+#ifdef HA_CAN_BULK_ACCESS
+int spider_db_bulk_bulk_insert(
+  ha_spider *spider
+);
+#endif
+
+int spider_db_update_auto_increment(
+  ha_spider *spider,
+  int link_idx
+);
+
+int spider_db_bulk_update_size_limit(
+  ha_spider *spider,
+  TABLE *table
+);
+
+int spider_db_bulk_update_end(
+  ha_spider *spider,
+  ha_rows *dup_key_found
+);
+
+int spider_db_bulk_update(
+  ha_spider *spider,
+  TABLE *table,
+  my_ptrdiff_t ptr_diff
+);
+
+int spider_db_update(
+  ha_spider *spider,
+  TABLE *table,
+  const uchar *old_data
+);
+
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS_WITH_HS
+int spider_db_direct_update(
+  ha_spider *spider,
+  TABLE *table,
+  KEY_MULTI_RANGE *ranges,
+  uint range_count,
+  ha_rows *update_rows,
+  ha_rows *found_rows
+);
+#else
+int spider_db_direct_update(
+  ha_spider *spider,
+  TABLE *table,
+  ha_rows *update_rows,
+  ha_rows *found_rows
+);
+#endif
+#endif
+
+#ifdef HA_CAN_BULK_ACCESS
+int spider_db_bulk_direct_update(
+  ha_spider *spider,
+  ha_rows *update_rows
+);
+#endif
+
+int spider_db_bulk_delete(
+  ha_spider *spider,
+  TABLE *table,
+  my_ptrdiff_t ptr_diff
+);
+
+int spider_db_delete(
+  ha_spider *spider,
+  TABLE *table,
+  const uchar *buf
+);
+
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS_WITH_HS
+int spider_db_direct_delete(
+  ha_spider *spider,
+  TABLE *table,
+  KEY_MULTI_RANGE *ranges,
+  uint range_count,
+  ha_rows *delete_rows
+);
+#else
+int spider_db_direct_delete(
+  ha_spider *spider,
+  TABLE *table,
+  ha_rows *delete_rows
+);
+#endif
+#endif
+
+int spider_db_delete_all_rows(
+  ha_spider *spider
+);
+
+int spider_db_disable_keys(
+  ha_spider *spider
+);
+
+int spider_db_enable_keys(
+  ha_spider *spider
+);
+
+int spider_db_check_table(
+  ha_spider *spider,
+  HA_CHECK_OPT* check_opt
+);
+
+int spider_db_repair_table(
+  ha_spider *spider,
+  HA_CHECK_OPT* check_opt
+);
+
+int spider_db_analyze_table(
+  ha_spider *spider
+);
+
+int spider_db_optimize_table(
+  ha_spider *spider
+);
+
+int spider_db_flush_tables(
+  ha_spider *spider,
+  bool lock
+);
+
+int spider_db_flush_logs(
+  ha_spider *spider
+);
+
+Field *spider_db_find_field_in_item_list(
+  Item **item_list,
+  uint item_count,
+  uint start_item,
+  spider_string *str,
+  const char *func_name,
+  int func_name_length
+);
+
+int spider_db_print_item_type(
+  Item *item,
+  Field *field,
+  ha_spider *spider,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  uint dbton_id,
+  bool use_fields,
+  spider_fields *fields
+);
+
+int spider_db_print_item_type_default(
+  Item *item,
+  ha_spider *spider,
+  spider_string *str
+);
+
+int spider_db_open_item_cond(
+  Item_cond *item_cond,
+  ha_spider *spider,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  uint dbton_id,
+  bool use_fields,
+  spider_fields *fields
+);
+
+int spider_db_open_item_func(
+  Item_func *item_func,
+  ha_spider *spider,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  uint dbton_id,
+  bool use_fields,
+  spider_fields *fields
+);
+
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+int spider_db_open_item_sum_func(
+  Item_sum *item_sum,
+  ha_spider *spider,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  uint dbton_id,
+  bool use_fields,
+  spider_fields *fields
+);
+#endif
+
+int spider_db_open_item_ident(
+  Item_ident *item_ident,
+  ha_spider *spider,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  uint dbton_id,
+  bool use_fields,
+  spider_fields *fields
+);
+
+int spider_db_open_item_field(
+  Item_field *item_field,
+  ha_spider *spider,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  uint dbton_id,
+  bool use_fields,
+  spider_fields *fields
+);
+
+int spider_db_open_item_ref(
+  Item_ref *item_ref,
+  ha_spider *spider,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  uint dbton_id,
+  bool use_fields,
+  spider_fields *fields
+);
+
+int spider_db_open_item_row(
+  Item_row *item_row,
+  ha_spider *spider,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  uint dbton_id,
+  bool use_fields,
+  spider_fields *fields
+);
+
+int spider_db_open_item_string(
+  Item *item,
+  Field *field,
+  ha_spider *spider,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  uint dbton_id,
+  bool use_fields,
+  spider_fields *fields
+);
+
+int spider_db_open_item_int(
+  Item *item,
+  Field *field,
+  ha_spider *spider,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  uint dbton_id,
+  bool use_fields,
+  spider_fields *fields
+);
+
+int spider_db_open_item_cache(
+  Item_cache *item_cache,
+  Field *field,
+  ha_spider *spider,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  uint dbton_id,
+  bool use_fields,
+  spider_fields *fields
+);
+
+int spider_db_open_item_insert_value(
+  Item_insert_value *item_insert_value,
+  Field *field,
+  ha_spider *spider,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  uint dbton_id,
+  bool use_fields,
+  spider_fields *fields
+);
+
+int spider_db_append_condition(
+  ha_spider *spider,
+  const char *alias,
+  uint alias_length,
+  bool test_flg
+);
+
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+int spider_db_append_update_columns(
+  ha_spider *spider,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  uint dbton_id,
+  bool use_fields,
+  spider_fields *fields
+);
+#endif
+
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+bool spider_db_check_select_colum_in_group(
+  st_select_lex *select_lex,
+  Field *field
+);
+#endif
+
+uint spider_db_check_ft_idx(
+  Item_func *item_func,
+  ha_spider *spider
+);
+
+int spider_db_udf_fetch_row(
+  SPIDER_TRX *trx,
+  Field *field,
+  SPIDER_DB_ROW *row,
+  ulong *length
+);
+
+int spider_db_udf_fetch_table(
+  SPIDER_TRX *trx,
+  SPIDER_CONN *conn,
+  TABLE *table,
+  SPIDER_DB_RESULT *result,
+  uint set_on,
+  uint set_off
+);
+
+int spider_db_udf_direct_sql_connect(
+  const SPIDER_DIRECT_SQL *direct_sql,
+  SPIDER_CONN *conn
+);
+
+int spider_db_udf_direct_sql_ping(
+  SPIDER_DIRECT_SQL *direct_sql
+);
+
+int spider_db_udf_direct_sql(
+  SPIDER_DIRECT_SQL *direct_sql
+);
+
+int spider_db_udf_direct_sql_select_db(
+  SPIDER_DIRECT_SQL *direct_sql,
+  SPIDER_CONN *conn
+);
+
+int spider_db_udf_direct_sql_set_names(
+  SPIDER_DIRECT_SQL *direct_sql,
+  SPIDER_TRX *trx,
+  SPIDER_CONN *conn
+);
+
+int spider_db_udf_check_and_set_set_names(
+  SPIDER_TRX *trx
+);
+
+int spider_db_udf_append_set_names(
+  SPIDER_TRX *trx
+);
+
+void spider_db_udf_free_set_names(
+  SPIDER_TRX *trx
+);
+
+int spider_db_udf_ping_table(
+  SPIDER_TABLE_MON_LIST *table_mon_list,
+  SPIDER_SHARE *share,
+  SPIDER_TRX *trx,
+  SPIDER_CONN *conn,
+  char *where_clause,
+  uint where_clause_length,
+  bool ping_only,
+  bool use_where,
+  longlong limit
+);
+
+int spider_db_udf_ping_table_append_mon_next(
+  spider_string *str,
+  char *child_table_name,
+  uint child_table_name_length,
+  int link_id,
+  char *where_clause,
+  uint where_clause_length,
+  longlong first_sid,
+  int full_mon_count,
+  int current_mon_count,
+  int success_count,
+  int fault_count,
+  int flags,
+  longlong limit
+);
+
+int spider_db_udf_ping_table_append_select(
+  spider_string *str,
+  SPIDER_SHARE *share,
+  SPIDER_TRX *trx,
+  spider_string *where_str,
+  bool use_where,
+  longlong limit,
+  uint dbton_id
+);
+
+int spider_db_udf_ping_table_mon_next(
+  THD *thd,
+  SPIDER_TABLE_MON *table_mon,
+  SPIDER_CONN *conn,
+  SPIDER_MON_TABLE_RESULT *mon_table_result,
+  char *child_table_name,
+  uint child_table_name_length,
+  int link_id,
+  char *where_clause,
+  uint where_clause_length,
+  longlong first_sid,
+  int full_mon_count,
+  int current_mon_count,
+  int success_count,
+  int fault_count,
+  int flags,
+  longlong limit
+);
+
+int spider_db_udf_copy_tables(
+  SPIDER_COPY_TABLES *copy_tables,
+  ha_spider *spider,
+  TABLE *table,
+  longlong bulk_insert_rows
+);
+
+int spider_db_open_handler(
+  ha_spider *spider,
+  SPIDER_CONN *conn,
+  int link_idx
+);
+
+#ifdef HA_CAN_BULK_ACCESS
+int spider_db_bulk_open_handler(
+  ha_spider *spider,
+  SPIDER_CONN *conn,
+  int link_idx
+);
+#endif
+
+int spider_db_close_handler(
+  ha_spider *spider,
+  SPIDER_CONN *conn,
+  int link_idx,
+  uint tgt_conn_kind
+);
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+void spider_db_hs_request_buf_reset(
+  SPIDER_CONN *conn
+);
+#endif
+
+bool spider_db_conn_is_network_error(
+  int error_num
+);
diff --git a/storage/spider/spd_db_handlersocket.cc b/storage/spider/spd_db_handlersocket.cc
new file mode 100644
index 00000000..b3e73b85
--- /dev/null
+++ b/storage/spider/spd_db_handlersocket.cc
@@ -0,0 +1,6336 @@
+/* Copyright (C) 2012-2018 Kentoku Shiba
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+#define MYSQL_SERVER 1
+#include <my_global.h>
+#include "mysql_version.h"
+#include "spd_environ.h"
+#if MYSQL_VERSION_ID < 50500
+#include "mysql_priv.h"
+#include <mysql/plugin.h>
+#else
+#include "sql_priv.h"
+#include "probes_mysql.h"
+#include "sql_analyse.h"
+#endif
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+#include "spd_err.h"
+#include "spd_param.h"
+#include "spd_db_include.h"
+#include "spd_include.h"
+#include "spd_db_handlersocket.h"
+#include "ha_spider.h"
+#include "spd_db_conn.h"
+#include "spd_trx.h"
+#include "spd_conn.h"
+#include "spd_malloc.h"
+
+extern handlerton *spider_hton_ptr;
+extern HASH spider_open_connections;
+extern HASH spider_ipport_conns;
+extern SPIDER_DBTON spider_dbton[SPIDER_DBTON_SIZE];
+extern const char spider_dig_upper[];
+
+#define SPIDER_SQL_INTERVAL_STR " + interval "
+#define SPIDER_SQL_INTERVAL_LEN (sizeof(SPIDER_SQL_INTERVAL_STR) - 1)
+#define SPIDER_SQL_NEGINTERVAL_STR " - interval "
+#define SPIDER_SQL_NEGINTERVAL_LEN (sizeof(SPIDER_SQL_NEGINTERVAL_STR) - 1)
+
+#define SPIDER_SQL_NAME_QUOTE_STR ""
+#define SPIDER_SQL_NAME_QUOTE_LEN (sizeof(SPIDER_SQL_NAME_QUOTE_STR) - 1)
+static const char *name_quote_str = SPIDER_SQL_NAME_QUOTE_STR;
+
+#define SPIDER_SQL_TYPE_FULL_HS (SPIDER_SQL_TYPE_SELECT_HS | \
+  SPIDER_SQL_TYPE_INSERT_HS | SPIDER_SQL_TYPE_UPDATE_HS | \
+  SPIDER_SQL_TYPE_DELETE_HS | SPIDER_SQL_TYPE_OTHER_HS)
+
+static uchar SPIDER_SQL_LINESTRING_HEAD_STR[] =
+  {0x00,0x00,0x00,0x00,0x01,0x02,0x00,0x00,0x00,0x02,0x00,0x00,0x00};
+#define SPIDER_SQL_LINESTRING_HEAD_LEN sizeof(SPIDER_SQL_LINESTRING_HEAD_STR)
+
+static const char *spider_db_timefunc_interval_str[] =
+{
+  " year", " quarter", " month", " week", " day",
+  " hour", " minute", " second", " microsecond",
+  " year_month", " day_hour", " day_minute",
+  " day_second", " hour_minute", " hour_second",
+  " minute_second", " day_microsecond", " hour_microsecond",
+  " minute_microsecond", " second_microsecond"
+};
+
+static SPIDER_HS_STRING_REF spider_null_string_ref = SPIDER_HS_STRING_REF();
+
+int spider_handlersocket_init()
+{
+  DBUG_ENTER("spider_handlersocket_init");
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_deinit()
+{
+  DBUG_ENTER("spider_handlersocket_deinit");
+  DBUG_RETURN(0);
+}
+
+spider_db_share *spider_handlersocket_create_share(
+  SPIDER_SHARE *share
+) {
+  DBUG_ENTER("spider_handlersocket_create_share");
+  DBUG_RETURN(new spider_handlersocket_share(share));
+}
+
+spider_db_handler *spider_handlersocket_create_handler(
+  ha_spider *spider,
+  spider_db_share *db_share
+) {
+  DBUG_ENTER("spider_handlersocket_create_handler");
+  DBUG_RETURN(new spider_handlersocket_handler(spider,
+    (spider_handlersocket_share *) db_share));
+}
+
+SPIDER_DB_CONN *spider_handlersocket_create_conn(
+  SPIDER_CONN *conn
+) {
+  DBUG_ENTER("spider_handlersocket_create_conn");
+  DBUG_RETURN(new spider_db_handlersocket(conn));
+}
+
+bool spider_handlersocket_support_direct_join(
+) {
+  DBUG_ENTER("spider_handlersocket_support_direct_join");
+  DBUG_RETURN(FALSE);
+}
+
+spider_db_handlersocket_util spider_db_handlersocket_utility;
+
+SPIDER_DBTON spider_dbton_handlersocket = {
+  0,
+  SPIDER_DB_WRAPPER_MYSQL,
+  SPIDER_DB_ACCESS_TYPE_NOSQL,
+  spider_handlersocket_init,
+  spider_handlersocket_deinit,
+  spider_handlersocket_create_share,
+  spider_handlersocket_create_handler,
+  NULL,
+  spider_handlersocket_create_conn,
+  spider_handlersocket_support_direct_join,
+  &spider_db_handlersocket_utility,
+  "For communicating using the handlersocket protocol",
+  "0.1.0",
+  SPIDER_MATURITY_BETA
+};
+
+#ifndef HANDLERSOCKET_MYSQL_UTIL
+spider_db_hs_string_ref_buffer::spider_db_hs_string_ref_buffer()
+{
+  DBUG_ENTER("spider_db_hs_string_ref_buffer::spider_db_hs_string_ref_buffer");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_db_hs_string_ref_buffer::~spider_db_hs_string_ref_buffer()
+{
+  DBUG_ENTER("spider_db_hs_string_ref_buffer::~spider_db_hs_string_ref_buffer");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+int spider_db_hs_string_ref_buffer::init()
+{
+  DBUG_ENTER("spider_db_hs_string_ref_buffer::init");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(0);
+}
+
+void spider_db_hs_string_ref_buffer::clear()
+{
+  DBUG_ENTER("spider_db_hs_string_ref_buffer::clear");
+  DBUG_PRINT("info",("spider this=%p", this));
+  hs_conds.clear();
+  DBUG_VOID_RETURN;
+}
+
+int spider_db_hs_string_ref_buffer::push_back(
+  SPIDER_HS_STRING_REF &cond
+) {
+  DBUG_ENTER("spider_db_hs_string_ref_buffer::push_back");
+  DBUG_PRINT("info",("spider this=%p", this));
+  hs_conds.push_back(cond);
+  DBUG_RETURN(0);
+}
+
+SPIDER_HS_STRING_REF *spider_db_hs_string_ref_buffer::ptr()
+{
+  DBUG_ENTER("spider_db_hs_string_ref_buffer::ptr");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(&hs_conds[0]);
+}
+
+uint spider_db_hs_string_ref_buffer::size()
+{
+  DBUG_ENTER("spider_db_hs_string_ref_buffer::size");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN((uint) hs_conds.size());
+}
+#else
+spider_db_hs_string_ref_buffer::spider_db_hs_string_ref_buffer() : hs_da_init(FALSE)
+{
+  DBUG_ENTER("spider_db_hs_string_ref_buffer::spider_db_hs_string_ref_buffer");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_db_hs_string_ref_buffer::~spider_db_hs_string_ref_buffer()
+{
+  DBUG_ENTER("spider_db_hs_string_ref_buffer::~spider_db_hs_string_ref_buffer");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (hs_da_init)
+  {
+    spider_free_mem_calc(spider_current_trx,
+      hs_conds_id, hs_conds.max_element * hs_conds.size_of_element);
+    delete_dynamic(&hs_conds);
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_db_hs_string_ref_buffer::init()
+{
+  DBUG_ENTER("spider_db_hs_string_ref_buffer::init");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!hs_da_init)
+  {
+    SPD_INIT_DYNAMIC_ARRAY2(&hs_conds, sizeof(SPIDER_HS_STRING_REF),
+      NULL, 16, 16, MYF(MY_WME));
+    spider_alloc_calc_mem_init(hs_conds, 159);
+    spider_alloc_calc_mem(spider_current_trx,
+      hs_conds, hs_conds.max_element * hs_conds.size_of_element);
+    hs_da_init = TRUE;
+  }
+  DBUG_RETURN(0);
+}
+
+void spider_db_hs_string_ref_buffer::clear()
+{
+  DBUG_ENTER("spider_db_hs_string_ref_buffer::clear");
+  DBUG_PRINT("info",("spider this=%p", this));
+  hs_conds.elements = 0;
+  DBUG_VOID_RETURN;
+}
+
+int spider_db_hs_string_ref_buffer::push_back(
+  SPIDER_HS_STRING_REF &cond
+) {
+  uint old_elements = hs_conds.max_element;
+  DBUG_ENTER("spider_db_hs_string_ref_buffer::push_back");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (insert_dynamic(&hs_conds, (uchar *) &cond))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  if (hs_conds.max_element > old_elements)
+  {
+    spider_alloc_calc_mem(spider_current_trx,
+      hs_conds,
+      (hs_conds.max_element - old_elements) * hs_conds.size_of_element);
+  }
+  DBUG_RETURN(0);
+}
+
+SPIDER_HS_STRING_REF *spider_db_hs_string_ref_buffer::ptr()
+{
+  DBUG_ENTER("spider_db_hs_string_ref_buffer::ptr");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN((SPIDER_HS_STRING_REF *) hs_conds.buffer);
+}
+
+uint spider_db_hs_string_ref_buffer::size()
+{
+  DBUG_ENTER("spider_db_hs_string_ref_buffer::size");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(hs_conds.elements);
+}
+#endif
+
+spider_db_hs_str_buffer::spider_db_hs_str_buffer() : hs_da_init(FALSE)
+{
+  DBUG_ENTER("spider_db_hs_str_buffer::spider_db_hs_str_buffer");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_db_hs_str_buffer::~spider_db_hs_str_buffer()
+{
+  DBUG_ENTER("spider_db_hs_str_buffer::~spider_db_hs_str_buffer");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (hs_da_init)
+  {
+    spider_free_mem_calc(spider_current_trx,
+      hs_conds_id, hs_conds.max_element * hs_conds.size_of_element);
+    delete_dynamic(&hs_conds);
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_db_hs_str_buffer::init()
+{
+  DBUG_ENTER("spider_db_hs_str_buffer::init");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!hs_da_init)
+  {
+    SPD_INIT_DYNAMIC_ARRAY2(&hs_conds, sizeof(spider_string *),
+      NULL, 16, 16, MYF(MY_WME));
+    spider_alloc_calc_mem_init(hs_conds, 160);
+    spider_alloc_calc_mem(spider_current_trx,
+      hs_conds, hs_conds.max_element * hs_conds.size_of_element);
+    hs_da_init = TRUE;
+  }
+  DBUG_RETURN(0);
+}
+
+void spider_db_hs_str_buffer::clear()
+{
+  uint i;
+  spider_string *element;
+  DBUG_ENTER("spider_db_hs_str_buffer::clear");
+  DBUG_PRINT("info",("spider this=%p", this));
+  for (i = 0; i < hs_conds.elements; i++)
+  {
+    get_dynamic(&hs_conds, (uchar *) &element, i);
+    element->free();
+    spider_free(spider_current_trx, element, MYF(0));
+  }
+  hs_conds.elements = 0;
+  DBUG_VOID_RETURN;
+}
+
+spider_string *spider_db_hs_str_buffer::add(
+  uint *strs_pos,
+  const char *str,
+  uint str_len
+) {
+  spider_string *element;
+  DBUG_ENTER("spider_db_hs_str_buffer::add");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (hs_conds.elements <= *strs_pos + 1)
+  {
+    if (!(element = (spider_string *) spider_malloc(spider_current_trx, 8,
+      sizeof(spider_string), MYF(MY_WME | MY_ZEROFILL))))
+      DBUG_RETURN(NULL);
+    element->init_calc_mem(98);
+    element->set_charset(&my_charset_bin);
+    if ((element->reserve(str_len + 1)))
+    {
+      spider_free(spider_current_trx, element, MYF(0));
+      DBUG_RETURN(NULL);
+    }
+    element->q_append(str, str_len);
+    uint old_elements = hs_conds.max_element;
+    if (insert_dynamic(&hs_conds, (uchar *) &element))
+    {
+      element->free();
+      spider_free(spider_current_trx, element, MYF(0));
+      DBUG_RETURN(NULL);
+    }
+    if (hs_conds.max_element > old_elements)
+    {
+      spider_alloc_calc_mem(spider_current_trx,
+        hs_conds,
+        (hs_conds.max_element - old_elements) *
+        hs_conds.size_of_element);
+    }
+  } else {
+    element = ((spider_string **) hs_conds.buffer)[*strs_pos];
+    element->length(0);
+    if ((element->reserve(str_len + 1)))
+      DBUG_RETURN(NULL);
+    element->q_append(str, str_len);
+  }
+  (*strs_pos)++;
+  DBUG_RETURN(element);
+}
+
+spider_db_handlersocket_row::spider_db_handlersocket_row() :
+  spider_db_row(spider_dbton_handlersocket.dbton_id),
+  hs_row(NULL), field_count(0), row_size(0), cloned(FALSE)
+{
+  DBUG_ENTER("spider_db_handlersocket_row::spider_db_handlersocket_row");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_db_handlersocket_row::~spider_db_handlersocket_row()
+{
+  DBUG_ENTER("spider_db_handlersocket_row::~spider_db_handlersocket_row");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (cloned)
+  {
+    spider_free(spider_current_trx, hs_row_first, MYF(0));
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_db_handlersocket_row::store_to_field(
+  Field *field,
+  CHARSET_INFO *access_charset
+) {
+  DBUG_ENTER("spider_db_handlersocket_row::store_to_field");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!hs_row->begin())
+  {
+    DBUG_PRINT("info", ("spider field is null"));
+    field->set_null();
+    field->reset();
+  } else {
+#ifndef DBUG_OFF
+    char buf[MAX_FIELD_WIDTH];
+    spider_string tmp_str(buf, MAX_FIELD_WIDTH, field->charset());
+    tmp_str.init_calc_mem(119);
+    tmp_str.length(0);
+    tmp_str.append(hs_row->begin(), hs_row->size(), &my_charset_bin);
+    DBUG_PRINT("info", ("spider val=%s", tmp_str.c_ptr_safe()));
+#endif
+    field->set_notnull();
+    if (field->flags & BLOB_FLAG)
+    {
+      DBUG_PRINT("info", ("spider blob field"));
+      ((Field_blob *)field)->set_ptr(
+        hs_row->size(), (uchar *) hs_row->begin());
+    } else
+      field->store(hs_row->begin(), hs_row->size(), &my_charset_bin);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket_row::append_to_str(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_db_handlersocket_row::append_to_str");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(hs_row->size()))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(hs_row->begin(), hs_row->size());
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket_row::append_escaped_to_str(
+  spider_string *str,
+  uint dbton_id
+) {
+  DBUG_ENTER("spider_db_handlersocket_row::append_escaped_to_str");
+  DBUG_PRINT("info",("spider this=%p", this));
+  spider_string tmp_str(hs_row->begin(), hs_row->size() + 1, &my_charset_bin);
+  tmp_str.init_calc_mem(172);
+  tmp_str.length(hs_row->size());
+  if (str->reserve(hs_row->size() * 2 + 2))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  spider_dbton[dbton_id].db_util->append_escaped_util(str, tmp_str.get_str());
+  str->mem_calc();
+  DBUG_RETURN(0);
+}
+
+void spider_db_handlersocket_row::first()
+{
+  DBUG_ENTER("spider_db_handlersocket_row::first");
+  DBUG_PRINT("info",("spider this=%p", this));
+  hs_row = hs_row_first;
+  DBUG_VOID_RETURN;
+}
+
+void spider_db_handlersocket_row::next()
+{
+  DBUG_ENTER("spider_db_handlersocket_row::next");
+  DBUG_PRINT("info",("spider this=%p", this));
+  hs_row++;
+  DBUG_VOID_RETURN;
+}
+
+bool spider_db_handlersocket_row::is_null()
+{
+  DBUG_ENTER("spider_db_handlersocket_row::is_null");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(!hs_row->begin());
+}
+
+int spider_db_handlersocket_row::val_int()
+{
+  DBUG_ENTER("spider_db_handlersocket_row::val_int");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(atoi(hs_row->begin()));
+}
+
+double spider_db_handlersocket_row::val_real()
+{
+  DBUG_ENTER("spider_db_handlersocket_row::val_real");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(hs_row->begin() ? my_atof(hs_row->begin()) : 0.0);
+}
+
+my_decimal *spider_db_handlersocket_row::val_decimal(
+  my_decimal *decimal_value,
+  CHARSET_INFO *access_charset
+) {
+  DBUG_ENTER("spider_db_handlersocket_row::val_decimal");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!hs_row->begin())
+    DBUG_RETURN(NULL);
+
+#ifdef SPIDER_HAS_DECIMAL_OPERATION_RESULTS_VALUE_TYPE
+  decimal_operation_results(str2my_decimal(0, hs_row->begin(), hs_row->size(),
+    access_charset, decimal_value), "", "");
+#else
+  decimal_operation_results(str2my_decimal(0, hs_row->begin(), hs_row->size(),
+    access_charset, decimal_value));
+#endif
+
+  DBUG_RETURN(decimal_value);
+}
+
+SPIDER_DB_ROW *spider_db_handlersocket_row::clone()
+{
+  spider_db_handlersocket_row *clone_row;
+  char *tmp_char;
+  uint i;
+  DBUG_ENTER("spider_db_handlersocket_row::clone");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!(clone_row = new spider_db_handlersocket_row(dbton_id)))
+  {
+    DBUG_RETURN(NULL);
+  }
+  if (!spider_bulk_malloc(spider_current_trx, 169, MYF(MY_WME),
+    &clone_row->hs_row, (uint) (sizeof(SPIDER_HS_STRING_REF) * field_count),
+    &tmp_char, (uint) (row_size),
+    NullS)
+  ) {
+    delete clone_row;
+    DBUG_RETURN(NULL);
+  }
+  for (i = 0; i < field_count; i++)
+  {
+    memcpy(tmp_char, hs_row_first[i].begin(), hs_row_first[i].size());
+    clone_row->hs_row[i].set(tmp_char, hs_row_first[i].size());
+    tmp_char += hs_row_first[i].size();
+  }
+  clone_row->hs_row_first = clone_row->hs_row;
+  clone_row->cloned = TRUE;;
+  clone_row->row_size = row_size;;
+  DBUG_RETURN(NULL);
+}
+
+int spider_db_handlersocket_row::store_to_tmp_table(
+  TABLE *tmp_table,
+  spider_string *str
+) {
+  uint i;
+  SPIDER_HS_STRING_REF *tmp_hs_row = hs_row;
+  DBUG_ENTER("spider_db_handlersocket_row::store_to_tmp_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str->length(0);
+  for (i = 0; i < field_count; i++)
+  {
+    if (tmp_hs_row->begin())
+    {
+      if (str->reserve(tmp_hs_row->size()))
+      {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+      str->q_append(tmp_hs_row->begin(), tmp_hs_row->size());
+    }
+    tmp_hs_row++;
+  }
+  tmp_table->field[0]->set_notnull();
+  tmp_table->field[0]->store(
+    (const char *) hs_row,
+    sizeof(SPIDER_HS_STRING_REF) * field_count, &my_charset_bin);
+  tmp_table->field[1]->set_notnull();
+  tmp_table->field[1]->store(
+    str->ptr(), str->length(), &my_charset_bin);
+  tmp_table->field[2]->set_null();
+  DBUG_RETURN(tmp_table->file->ha_write_row(tmp_table->record[0]));
+}
+
+uint spider_db_handlersocket_row::get_byte_size()
+{
+  DBUG_ENTER("spider_db_handlersocket_row::get_byte_size");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(row_size);
+}
+
+
+spider_db_handlersocket_result_buffer::spider_db_handlersocket_result_buffer(
+) : spider_db_result_buffer()
+{
+  DBUG_ENTER("spider_db_handlersocket_result_buffer::spider_db_handlersocket_result_buffer");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_db_handlersocket_result_buffer::~spider_db_handlersocket_result_buffer()
+{
+  DBUG_ENTER(
+    "spider_db_handlersocket_result_buffer::~spider_db_handlersocket_result_buffer");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+void spider_db_handlersocket_result_buffer::clear()
+{
+  DBUG_ENTER("spider_db_handlersocket_result_buffer::clear");
+  DBUG_PRINT("info",("spider this=%p", this));
+  hs_result.readbuf.clear();
+  DBUG_VOID_RETURN;
+}
+
+bool spider_db_handlersocket_result_buffer::check_size(
+  longlong size
+) {
+  DBUG_ENTER("spider_db_handlersocket_result_buffer::check_size");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if ((uint) hs_result.readbuf.real_size() > size)
+  {
+    hs_result.readbuf.real_free();
+    DBUG_RETURN(TRUE);
+  }
+  DBUG_RETURN(FALSE);
+}
+
+spider_db_handlersocket_result::spider_db_handlersocket_result(
+  SPIDER_DB_CONN *in_db_conn
+) : spider_db_result(in_db_conn), row(in_db_conn->dbton_id)
+{
+  DBUG_ENTER("spider_db_handlersocket_result::spider_db_handlersocket_result");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_db_handlersocket_result::~spider_db_handlersocket_result()
+{
+  DBUG_ENTER(
+    "spider_db_handlersocket_result::~spider_db_handlersocket_result");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+bool spider_db_handlersocket_result::has_result()
+{
+  DBUG_ENTER("spider_db_handlersocket_result::has_result");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(((*hs_conn_p)->get_response_end_offset() > 0));
+}
+
+void spider_db_handlersocket_result::free_result()
+{
+  DBUG_ENTER("spider_db_handlersocket_result::free_result");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider hs hs_conn=%p", hs_conn_p));
+  DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+    (*hs_conn_p)->get_num_req_bufd()));
+  DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+    (*hs_conn_p)->get_num_req_sent()));
+  DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+    (*hs_conn_p)->get_num_req_rcvd()));
+  DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+    (*hs_conn_p)->get_response_end_offset()));
+  if ((*hs_conn_p)->get_response_end_offset() > 0)
+  {
+    (*hs_conn_p)->response_buf_remove();
+    if ((*hs_conn_p)->get_error_code())
+    {
+      DBUG_PRINT("info",("spider hs %d %s",
+        (*hs_conn_p)->get_error_code(),
+        (*hs_conn_p)->get_error().ptr()));
+      (*hs_conn_p)->write_error_to_log(__func__, __FILE__, __LINE__);
+    }
+    DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+      (*hs_conn_p)->get_num_req_bufd()));
+    DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+      (*hs_conn_p)->get_num_req_sent()));
+    DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+      (*hs_conn_p)->get_num_req_rcvd()));
+    DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+      (*hs_conn_p)->get_response_end_offset()));
+  }
+  DBUG_VOID_RETURN;
+}
+
+SPIDER_DB_ROW *spider_db_handlersocket_result::current_row()
+{
+  DBUG_ENTER("spider_db_handlersocket_result::current_row");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN((SPIDER_DB_ROW *) row.clone());
+}
+
+SPIDER_DB_ROW *spider_db_handlersocket_result::fetch_row()
+{
+  DBUG_ENTER("spider_db_handlersocket_result::fetch_row");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!(row.hs_row = (SPIDER_HS_STRING_REF *)
+    (*hs_conn_p)->get_next_row()))
+  {
+    store_error_num = HA_ERR_END_OF_FILE;
+    DBUG_RETURN(NULL);
+  }
+  row.field_count = field_count;
+  row.hs_row_first = row.hs_row;
+  row.row_size = (*hs_conn_p)->get_row_size();
+  DBUG_RETURN((SPIDER_DB_ROW *) &row);
+}
+
+SPIDER_DB_ROW *spider_db_handlersocket_result::fetch_row_from_result_buffer(
+  spider_db_result_buffer *spider_res_buf
+) {
+  spider_db_handlersocket_result_buffer *hs_res_buf;
+  DBUG_ENTER("spider_db_handlersocket_result::fetch_row_from_result_buffer");
+  DBUG_PRINT("info",("spider this=%p", this));
+  hs_res_buf = (spider_db_handlersocket_result_buffer *) spider_res_buf;
+  if (!(row.hs_row = (SPIDER_HS_STRING_REF *)
+    (*hs_conn_p)->get_next_row_from_result(hs_res_buf->hs_result)))
+  {
+    store_error_num = HA_ERR_END_OF_FILE;
+    DBUG_RETURN(NULL);
+  }
+  row.field_count = field_count;
+  row.hs_row_first = row.hs_row;
+  row.row_size = (*hs_conn_p)->get_row_size_from_result(hs_res_buf->hs_result);
+  DBUG_RETURN((SPIDER_DB_ROW *) &row);
+}
+
+SPIDER_DB_ROW *spider_db_handlersocket_result::fetch_row_from_tmp_table(
+  TABLE *tmp_table
+) {
+  uint i;
+  spider_string tmp_str1, tmp_str2;
+  const char *row_ptr;
+  SPIDER_HS_STRING_REF *tmp_hs_row;
+  uint field_count;
+  DBUG_ENTER("spider_db_handlersocket_result::fetch_row_from_tmp_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  tmp_str1.init_calc_mem(171);
+  tmp_str2.init_calc_mem(173);
+  tmp_table->field[0]->val_str(tmp_str1.get_str());
+  tmp_table->field[1]->val_str(tmp_str2.get_str());
+  tmp_str1.mem_calc();
+  tmp_str2.mem_calc();
+  row_ptr = tmp_str2.ptr();
+  tmp_hs_row = (SPIDER_HS_STRING_REF *) tmp_str1.ptr();
+  field_count = tmp_str1.length() / sizeof(SPIDER_HS_STRING_REF);
+  row.hs_row = tmp_hs_row;
+  row.field_count = field_count;
+  row.hs_row_first = row.hs_row;
+  for (i = 0; i < field_count; i++)
+  {
+    if (tmp_hs_row->begin())
+    {
+      uint length = tmp_hs_row->size();
+      tmp_hs_row->set(row_ptr, length);
+      row_ptr += length;
+    }
+    tmp_hs_row++;
+  }
+  row.row_size = row_ptr - tmp_str2.ptr();
+  DBUG_RETURN((SPIDER_DB_ROW *) &row);
+}
+
+int spider_db_handlersocket_result::fetch_table_status(
+  int mode,
+  ha_statistics &stat
+) {
+  DBUG_ENTER("spider_db_handlersocket_result::fetch_table_status");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket_result::fetch_table_records(
+  int mode,
+  ha_rows &records
+) {
+  DBUG_ENTER("spider_db_handlersocket_result::fetch_table_records");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket_result::fetch_table_cardinality(
+  int mode,
+  TABLE *table,
+  longlong *cardinality,
+  uchar *cardinality_upd,
+  int bitmap_size
+) {
+  DBUG_ENTER("spider_db_handlersocket_result::fetch_table_cardinality");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket_result::fetch_table_mon_status(
+  int &status
+) {
+  DBUG_ENTER("spider_db_handlersocket_result::fetch_table_mon_status");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+longlong spider_db_handlersocket_result::num_rows()
+{
+  DBUG_ENTER("spider_db_handlersocket_result::num_rows");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN((longlong) 0);
+}
+
+uint spider_db_handlersocket_result::num_fields()
+{
+  DBUG_ENTER("spider_db_handlersocket_result::num_fields");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(field_count);
+}
+
+void spider_db_handlersocket_result::move_to_pos(
+  longlong pos
+) {
+  DBUG_ENTER("spider_db_handlersocket_result::move_to_pos");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_VOID_RETURN;
+}
+
+int spider_db_handlersocket_result::get_errno()
+{
+  DBUG_ENTER("spider_db_handlersocket_result::get_errno");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider store_error_num=%d", store_error_num));
+  DBUG_RETURN(store_error_num);
+}
+
+#ifdef SPIDER_HAS_DISCOVER_TABLE_STRUCTURE
+int spider_db_handlersocket_result::fetch_columns_for_discover_table_structure(
+  spider_string *str,
+  CHARSET_INFO *access_charset
+) {
+  DBUG_ENTER("spider_db_handlersocket_result::fetch_columns_for_discover_table_structure");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(HA_ERR_WRONG_COMMAND);
+}
+
+int spider_db_handlersocket_result::fetch_index_for_discover_table_structure(
+  spider_string *str,
+  CHARSET_INFO *access_charset
+) {
+  DBUG_ENTER("spider_db_handlersocket_result::fetch_index_for_discover_table_structure");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(HA_ERR_WRONG_COMMAND);
+}
+
+int spider_db_handlersocket_result::fetch_table_for_discover_table_structure(
+  spider_string *str,
+  SPIDER_SHARE *spider_share,
+  CHARSET_INFO *access_charset
+) {
+  DBUG_ENTER("spider_db_handlersocket_result::fetch_table_for_discover_table_structure");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(HA_ERR_WRONG_COMMAND);
+}
+#endif
+
+spider_db_handlersocket::spider_db_handlersocket(
+  SPIDER_CONN *conn
+) : spider_db_conn(conn),
+  handler_open_array_inited(FALSE),
+  request_key_req_first(NULL),
+  request_key_req_last(NULL),
+  request_key_snd_first(NULL),
+  request_key_snd_last(NULL),
+  request_key_reuse_first(NULL),
+  request_key_reuse_last(NULL)
+{
+  DBUG_ENTER("spider_db_handlersocket::spider_db_handlersocket");
+  DBUG_PRINT("info",("spider this=%p", this));
+#ifndef HANDLERSOCKET_MYSQL_UTIL
+#else
+  hs_conn = NULL;
+#endif
+  DBUG_VOID_RETURN;
+}
+
+spider_db_handlersocket::~spider_db_handlersocket()
+{
+  st_spider_db_request_key *tmp_request_key;
+  DBUG_ENTER("spider_db_handlersocket::~spider_db_handlersocket");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (handler_open_array_inited)
+  {
+    reset_opened_handler();
+    spider_free_mem_calc(spider_current_trx,
+      handler_open_array_id,
+      handler_open_array.max_element *
+      handler_open_array.size_of_element);
+    delete_dynamic(&handler_open_array);
+  }
+  while (request_key_req_first)
+  {
+    tmp_request_key = request_key_req_first->next;
+    spider_free(spider_current_trx, request_key_req_first, MYF(0));
+    request_key_req_first = tmp_request_key;
+  }
+  while (request_key_snd_first)
+  {
+    tmp_request_key = request_key_snd_first->next;
+    spider_free(spider_current_trx, request_key_snd_first, MYF(0));
+    request_key_snd_first = tmp_request_key;
+  }
+  while (request_key_reuse_first)
+  {
+    tmp_request_key = request_key_reuse_first->next;
+    spider_free(spider_current_trx, request_key_reuse_first, MYF(0));
+    request_key_reuse_first = tmp_request_key;
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_db_handlersocket::init()
+{
+  DBUG_ENTER("spider_db_handlersocket::init");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (
+    SPD_INIT_DYNAMIC_ARRAY2(&handler_open_array,
+      sizeof(SPIDER_LINK_FOR_HASH *), NULL, 16, 16, MYF(MY_WME))
+  ) {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  spider_alloc_calc_mem_init(handler_open_array, 79);
+  spider_alloc_calc_mem(spider_current_trx,
+    handler_open_array,
+    handler_open_array.max_element *
+    handler_open_array.size_of_element);
+  handler_open_array_inited = TRUE;
+  DBUG_RETURN(0);
+}
+
+bool spider_db_handlersocket::is_connected()
+{
+  DBUG_ENTER("spider_db_handlersocket::is_connected");
+  DBUG_PRINT("info",("spider this=%p", this));
+#ifndef HANDLERSOCKET_MYSQL_UTIL
+  DBUG_RETURN(hs_conn.operator->());
+#else
+  DBUG_RETURN(hs_conn);
+#endif
+}
+
+void spider_db_handlersocket::bg_connect()
+{
+  DBUG_ENTER("spider_db_handlersocket::bg_connect");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+int spider_db_handlersocket::connect(
+  char *tgt_host,
+  char *tgt_username,
+  char *tgt_password,
+  long tgt_port,
+  char *tgt_socket,
+  char *server_name,
+  int connect_retry_count,
+  longlong connect_retry_interval
+) {
+  DBUG_ENTER("spider_db_handlersocket::connect");
+  DBUG_PRINT("info",("spider this=%p", this));
+  SPIDER_HS_SOCKARGS sockargs;
+  sockargs.timeout = conn->connect_timeout;
+  sockargs.recv_timeout = conn->net_read_timeout;
+  sockargs.send_timeout = conn->net_write_timeout;
+  if (conn->hs_sock)
+  {
+    sockargs.family = AF_UNIX;
+    sockargs.set_unix_domain(conn->hs_sock);
+  } else {
+    char port_str[6];
+    my_sprintf(port_str, (port_str, "%05ld", conn->hs_port));
+    if (sockargs.resolve(conn->tgt_host, port_str) != 0)
+    {
+      my_error(ER_CONNECT_TO_FOREIGN_DATA_SOURCE, MYF(0),
+        conn->tgt_host);
+      DBUG_RETURN(ER_CONNECT_TO_FOREIGN_DATA_SOURCE);
+    }
+  }
+#ifndef HANDLERSOCKET_MYSQL_UTIL
+  if (!(hs_conn.operator->()))
+#else
+  if (!(hs_conn))
+#endif
+  {
+    hs_conn = SPIDER_HS_CONN_CREATE(sockargs);
+  } else {
+    hs_conn->reconnect();
+    spider_db_hs_request_buf_reset(conn);
+  }
+#ifndef HANDLERSOCKET_MYSQL_UTIL
+  if (!(hs_conn.operator->()))
+#else
+  if (!(hs_conn))
+#endif
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  while (hs_conn->get_error_code())
+  {
+    THD *thd = current_thd;
+    if (
+      !connect_retry_count ||
+      (thd && thd->killed)
+    ) {
+      my_error(ER_CONNECT_TO_FOREIGN_DATA_SOURCE, MYF(0),
+        conn->tgt_host);
+      DBUG_RETURN(ER_CONNECT_TO_FOREIGN_DATA_SOURCE);
+    }
+    connect_retry_count--;
+    my_sleep((ulong) connect_retry_interval);
+    hs_conn->reconnect();
+  }
+  reset_request_key_req();
+  reset_request_key_snd();
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket::ping()
+{
+  SPIDER_HS_CONN *hs_conn_p = &hs_conn;
+  DBUG_ENTER("spider_db_handlersocket::ping");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+    (*hs_conn_p)->get_num_req_bufd()));
+  DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+    (*hs_conn_p)->get_num_req_sent()));
+  DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+    (*hs_conn_p)->get_num_req_rcvd()));
+  DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+    (*hs_conn_p)->get_response_end_offset()));
+  if ((*hs_conn_p)->reconnect())
+  {
+    DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+      (*hs_conn_p)->get_num_req_bufd()));
+    DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+      (*hs_conn_p)->get_num_req_sent()));
+    DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+      (*hs_conn_p)->get_num_req_rcvd()));
+    DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+      (*hs_conn_p)->get_response_end_offset()));
+    DBUG_RETURN(ER_SPIDER_HS_NUM);
+  }
+  DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+    (*hs_conn_p)->get_num_req_bufd()));
+  DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+    (*hs_conn_p)->get_num_req_sent()));
+  DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+    (*hs_conn_p)->get_num_req_rcvd()));
+  DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+    (*hs_conn_p)->get_response_end_offset()));
+
+  reset_request_key_req();
+  reset_request_key_snd();
+  conn->opened_handlers = 0;
+  conn->db_conn->reset_opened_handler();
+  ++conn->connection_id;
+  DBUG_RETURN(0);
+}
+
+void spider_db_handlersocket::bg_disconnect()
+{
+  DBUG_ENTER("spider_db_handlersocket::bg_disconnect");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+void spider_db_handlersocket::disconnect()
+{
+  DBUG_ENTER("spider_db_handlersocket::disconnect");
+  DBUG_PRINT("info",("spider this=%p", this));
+#ifndef HANDLERSOCKET_MYSQL_UTIL
+  if (hs_conn.operator->())
+#else
+  DBUG_PRINT("info",("spider hs_conn=%p", hs_conn));
+  if (hs_conn)
+#endif
+  {
+    hs_conn->close();
+#ifndef HANDLERSOCKET_MYSQL_UTIL
+    SPIDER_HS_CONN tmp_hs_conn;
+    tmp_hs_conn = hs_conn;
+#else
+    delete hs_conn;
+    hs_conn = NULL;
+#endif
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_db_handlersocket::set_net_timeout()
+{
+  DBUG_ENTER("spider_db_handlersocket::set_net_timeout");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(hs_conn->set_timeout(
+    conn->net_write_timeout,
+    conn->net_read_timeout
+  ));
+}
+
+int spider_db_handlersocket::exec_query(
+  const char *query,
+  uint length,
+  int quick_mode
+) {
+  DBUG_ENTER("spider_db_handlersocket::query");
+  DBUG_PRINT("info",("spider this=%p", this));
+  SPIDER_HS_CONN *hs_conn_p = &hs_conn;
+#ifndef HANDLERSOCKET_MYSQL_UTIL
+  DBUG_PRINT("info", ("spider hs_conn %p", hs_conn.operator->()));
+#else
+  DBUG_PRINT("info", ("spider hs_conn %p", hs_conn));
+#endif
+  DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+    (*hs_conn_p)->get_num_req_bufd()));
+  DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+    (*hs_conn_p)->get_num_req_sent()));
+  DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+    (*hs_conn_p)->get_num_req_rcvd()));
+  DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+    (*hs_conn_p)->get_response_end_offset()));
+  if (spider_param_general_log())
+  {
+    const char *tgt_str = conn->hs_sock ? conn->hs_sock : conn->tgt_host;
+    uint32 tgt_len = strlen(tgt_str);
+    spider_string tmp_query_str((*hs_conn_p)->get_writebuf_size() +
+      conn->tgt_wrapper_length +
+      tgt_len + (SPIDER_SQL_SPACE_LEN * 2));
+    tmp_query_str.init_calc_mem(231);
+    tmp_query_str.length(0);
+    tmp_query_str.q_append(conn->tgt_wrapper, conn->tgt_wrapper_length);
+    tmp_query_str.q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+    tmp_query_str.q_append(tgt_str, tgt_len);
+    tmp_query_str.q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+    tmp_query_str.q_append((*hs_conn_p)->get_writebuf_begin(),
+      (*hs_conn_p)->get_writebuf_size());
+    general_log_write(current_thd, COM_QUERY, tmp_query_str.ptr(),
+      tmp_query_str.length());
+  }
+  if ((*hs_conn_p)->request_send() < 0)
+  {
+    DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+      (*hs_conn_p)->get_num_req_bufd()));
+    DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+      (*hs_conn_p)->get_num_req_sent()));
+    DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+      (*hs_conn_p)->get_num_req_rcvd()));
+    DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+      (*hs_conn_p)->get_response_end_offset()));
+    DBUG_RETURN(ER_SPIDER_HS_NUM);
+  }
+  DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+    (*hs_conn_p)->get_num_req_bufd()));
+  DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+    (*hs_conn_p)->get_num_req_sent()));
+  DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+    (*hs_conn_p)->get_num_req_rcvd()));
+  DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+    (*hs_conn_p)->get_response_end_offset()));
+  move_request_key_to_snd();
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket::get_errno()
+{
+  DBUG_ENTER("spider_db_handlersocket::get_errno");
+  DBUG_PRINT("info",("spider this=%p", this));
+  stored_error = hs_conn->get_error_code();
+  DBUG_PRINT("info",("spider stored_error=%d", stored_error));
+  DBUG_RETURN(stored_error);
+}
+
+const char *spider_db_handlersocket::get_error()
+{
+  const char *error_ptr;
+  DBUG_ENTER("spider_db_handlersocket::get_error");
+  DBUG_PRINT("info",("spider this=%p", this));
+#ifndef HANDLERSOCKET_MYSQL_UTIL
+  error_ptr = hs_conn->get_error().c_str();
+#else
+  error_ptr = hs_conn->get_error().c_ptr();
+#endif
+  DBUG_PRINT("info",("spider error=%s", error_ptr));
+  DBUG_RETURN(error_ptr);
+}
+
+bool spider_db_handlersocket::is_server_gone_error(
+  int error_num
+) {
+  bool server_gone;
+  DBUG_ENTER("spider_db_handlersocket::is_server_gone_error");
+  DBUG_PRINT("info",("spider this=%p", this));
+  server_gone = (hs_conn->get_error_code() < 0);
+  DBUG_PRINT("info",("spider server_gone=%s", server_gone ? "TRUE" : "FALSE"));
+  DBUG_RETURN(server_gone);
+}
+
+bool spider_db_handlersocket::is_dup_entry_error(
+  int error_num
+) {
+  bool dup_entry;
+  DBUG_ENTER("spider_db_handlersocket::is_dup_entry_error");
+  DBUG_PRINT("info",("spider this=%p", this));
+#ifndef HANDLERSOCKET_MYSQL_UTIL
+  const char *c_str = hs_conn->get_error().c_str();
+#else
+  const char *c_str = hs_conn->get_error().c_ptr_safe();
+#endif
+  dup_entry =
+    (
+      c_str[0] == '1' &&
+      c_str[1] == '2' &&
+      c_str[2] == '1' &&
+      c_str[3] == '\0'
+    );
+  DBUG_PRINT("info",("spider dup_entry=%s", dup_entry ? "TRUE" : "FALSE"));
+  DBUG_RETURN(dup_entry);
+}
+
+bool spider_db_handlersocket::is_xa_nota_error(
+  int error_num
+) {
+  bool xa_nota;
+  DBUG_ENTER("spider_db_handlersocket::is_xa_nota_error");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  xa_nota = (stored_error == ER_XAER_NOTA);
+  DBUG_PRINT("info",("spider xa_nota=%s", xa_nota ? "TRUE" : "FALSE"));
+  DBUG_RETURN(xa_nota);
+}
+
+spider_db_result *spider_db_handlersocket::store_result(
+  spider_db_result_buffer **spider_res_buf,
+  st_spider_db_request_key *request_key,
+  int *error_num
+) {
+  int internal_error;
+  spider_db_handlersocket_result *result;
+  spider_db_handlersocket_result_buffer *hs_res_buf;
+  DBUG_ENTER("spider_db_handlersocket::store_result");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (*spider_res_buf)
+  {
+    hs_res_buf = (spider_db_handlersocket_result_buffer *) *spider_res_buf;
+  } else {
+    if (!(hs_res_buf = new spider_db_handlersocket_result_buffer()))
+    {
+      *error_num = HA_ERR_OUT_OF_MEM;
+      DBUG_RETURN(NULL);
+    }
+    *spider_res_buf = (spider_db_result_buffer *) hs_res_buf;
+  }
+  hs_res_buf->clear();
+  if (!(result = new spider_db_handlersocket_result(this)))
+  {
+    *error_num = HA_ERR_OUT_OF_MEM;
+    DBUG_RETURN(NULL);
+  }
+  *error_num = 0;
+  result->hs_conn_p = &hs_conn;
+  size_t num_fields;
+  SPIDER_HS_CONN *hs_conn_p = &hs_conn;
+  DBUG_PRINT("info",("spider hs hs_conn=%p", hs_conn_p));
+  if (request_key)
+  {
+    int tmp_res, tmp_err = (*hs_conn_p)->get_error_code();
+    while ((tmp_res = check_request_key(request_key)) == 1)
+    {
+      DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+        (*hs_conn_p)->get_num_req_bufd()));
+      DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+        (*hs_conn_p)->get_num_req_sent()));
+      DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+        (*hs_conn_p)->get_num_req_rcvd()));
+      DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+        (*hs_conn_p)->get_response_end_offset()));
+      if ((internal_error = (*hs_conn_p)->response_recv(num_fields)))
+      {
+        if (!tmp_err && internal_error > 0)
+        {
+          (*hs_conn_p)->clear_error();
+        } else {
+          (*hs_conn_p)->write_error_to_log(__func__, __FILE__, __LINE__);
+#ifndef DBUG_OFF
+          if ((*hs_conn_p)->get_response_end_offset() > 0 &&
+            (*hs_conn_p)->get_readbuf_begin())
+          {
+            char tmp_buf[MAX_FIELD_WIDTH];
+            String tmp_str(tmp_buf, MAX_FIELD_WIDTH, &my_charset_bin);
+            tmp_str.length(0);
+            tmp_str.append((*hs_conn_p)->get_readbuf_begin(),
+              (*hs_conn_p)->get_response_end_offset(), &my_charset_bin);
+            DBUG_PRINT("info",("spider hs readbuf01 size=%zu str=%s",
+              (*hs_conn_p)->get_response_end_offset(), tmp_str.c_ptr_safe()));
+          }
+#endif
+          DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+            (*hs_conn_p)->get_num_req_bufd()));
+          DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+            (*hs_conn_p)->get_num_req_sent()));
+          DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+            (*hs_conn_p)->get_num_req_rcvd()));
+          DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+            (*hs_conn_p)->get_response_end_offset()));
+          if (internal_error > 0)
+          {
+            (*hs_conn_p)->response_buf_remove();
+            if ((*hs_conn_p)->get_error_code())
+            {
+              DBUG_PRINT("info",("spider hs %d %s",
+                (*hs_conn_p)->get_error_code(),
+                (*hs_conn_p)->get_error().ptr()));
+              (*hs_conn_p)->write_error_to_log(__func__, __FILE__, __LINE__);
+            }
+            DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+              (*hs_conn_p)->get_num_req_bufd()));
+            DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+              (*hs_conn_p)->get_num_req_sent()));
+            DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+              (*hs_conn_p)->get_num_req_rcvd()));
+            DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+              (*hs_conn_p)->get_response_end_offset()));
+            (*hs_conn_p)->clear_error();
+          }
+          delete result;
+          DBUG_RETURN(NULL);
+        }
+      }
+      DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+        (*hs_conn_p)->get_num_req_bufd()));
+      DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+        (*hs_conn_p)->get_num_req_sent()));
+      DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+        (*hs_conn_p)->get_num_req_rcvd()));
+      DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+        (*hs_conn_p)->get_response_end_offset()));
+      (*hs_conn_p)->response_buf_remove();
+      DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+        (*hs_conn_p)->get_num_req_bufd()));
+      DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+        (*hs_conn_p)->get_num_req_sent()));
+      DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+        (*hs_conn_p)->get_num_req_rcvd()));
+      DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+        (*hs_conn_p)->get_response_end_offset()));
+    }
+    if (tmp_res == -1)
+    {
+      DBUG_PRINT("info",("spider ER_SPIDER_REQUEST_KEY_NUM"));
+      *error_num = ER_SPIDER_REQUEST_KEY_NUM;
+      DBUG_RETURN(NULL);
+    }
+  }
+  DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+    (*hs_conn_p)->get_num_req_bufd()));
+  DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+    (*hs_conn_p)->get_num_req_sent()));
+  DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+    (*hs_conn_p)->get_num_req_rcvd()));
+  DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+    (*hs_conn_p)->get_response_end_offset()));
+  if (
+    (internal_error = (*hs_conn_p)->response_recv(num_fields)) ||
+    (*error_num = (*hs_conn_p)->get_result(hs_res_buf->hs_result))
+  ) {
+    if (*error_num)
+    {
+      *error_num = HA_ERR_OUT_OF_MEM;
+    }
+    (*hs_conn_p)->write_error_to_log(__func__, __FILE__, __LINE__);
+#ifndef DBUG_OFF
+    if ((*hs_conn_p)->get_response_end_offset() > 0 &&
+      (*hs_conn_p)->get_readbuf_begin())
+    {
+      char tmp_buf[MAX_FIELD_WIDTH];
+      String tmp_str(tmp_buf, MAX_FIELD_WIDTH, &my_charset_bin);
+      tmp_str.length(0);
+      tmp_str.append((*hs_conn_p)->get_readbuf_begin(),
+        (*hs_conn_p)->get_response_end_offset(), &my_charset_bin);
+      DBUG_PRINT("info",("spider hs readbuf01 size=%zu str=%s",
+        (*hs_conn_p)->get_response_end_offset(), tmp_str.c_ptr_safe()));
+    }
+#endif
+    DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+      (*hs_conn_p)->get_num_req_bufd()));
+    DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+      (*hs_conn_p)->get_num_req_sent()));
+    DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+      (*hs_conn_p)->get_num_req_rcvd()));
+    DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+      (*hs_conn_p)->get_response_end_offset()));
+    if (internal_error > 0)
+    {
+      (*hs_conn_p)->response_buf_remove();
+      if ((*hs_conn_p)->get_error_code())
+      {
+        DBUG_PRINT("info",("spider hs %d %s",
+          (*hs_conn_p)->get_error_code(),
+          (*hs_conn_p)->get_error().ptr()));
+        (*hs_conn_p)->write_error_to_log(__func__, __FILE__, __LINE__);
+      }
+      DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+        (*hs_conn_p)->get_num_req_bufd()));
+      DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+        (*hs_conn_p)->get_num_req_sent()));
+      DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+        (*hs_conn_p)->get_num_req_rcvd()));
+      DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+        (*hs_conn_p)->get_response_end_offset()));
+    }
+    delete result;
+    DBUG_RETURN(NULL);
+  }
+#ifndef DBUG_OFF
+  if ((*hs_conn_p)->get_response_end_offset() > 0 &&
+    (*hs_conn_p)->get_readbuf_begin())
+  {
+    char tmp_buf[MAX_FIELD_WIDTH];
+    String tmp_str(tmp_buf, MAX_FIELD_WIDTH, &my_charset_bin);
+    tmp_str.length(0);
+    tmp_str.append((*hs_conn_p)->get_readbuf_begin(),
+      (*hs_conn_p)->get_response_end_offset(), &my_charset_bin);
+    DBUG_PRINT("info",("spider hs readbuf02 size=%zu str=%s",
+      (*hs_conn_p)->get_response_end_offset(), tmp_str.c_ptr_safe()));
+  }
+#endif
+  DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+    (*hs_conn_p)->get_num_req_bufd()));
+  DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+    (*hs_conn_p)->get_num_req_sent()));
+  DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+    (*hs_conn_p)->get_num_req_rcvd()));
+  DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+    (*hs_conn_p)->get_response_end_offset()));
+  (*hs_conn_p)->response_buf_remove();
+  if ((*hs_conn_p)->get_error_code())
+  {
+    DBUG_PRINT("info",("spider hs %d %s",
+      (*hs_conn_p)->get_error_code(),
+      (*hs_conn_p)->get_error().ptr()));
+    (*hs_conn_p)->write_error_to_log(__func__, __FILE__, __LINE__);
+  }
+  DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+    (*hs_conn_p)->get_num_req_bufd()));
+  DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+    (*hs_conn_p)->get_num_req_sent()));
+  DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+    (*hs_conn_p)->get_num_req_rcvd()));
+  DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+    (*hs_conn_p)->get_response_end_offset()));
+  field_count = (uint) num_fields;
+  result->field_count = field_count;
+  DBUG_RETURN(result);
+}
+
+spider_db_result *spider_db_handlersocket::use_result(
+  ha_spider *spider,
+  st_spider_db_request_key *request_key,
+  int *error_num
+) {
+  int internal_error;
+  spider_db_handlersocket_result *result;
+  DBUG_ENTER("spider_db_handlersocket::use_result");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!(result = new spider_db_handlersocket_result(this)))
+  {
+    *error_num = HA_ERR_OUT_OF_MEM;
+    DBUG_RETURN(NULL);
+  }
+  *error_num = 0;
+  result->hs_conn_p = &hs_conn;
+  size_t num_fields;
+  SPIDER_HS_CONN *hs_conn_p = &hs_conn;
+  DBUG_PRINT("info",("spider hs hs_conn=%p", hs_conn_p));
+  if (request_key)
+  {
+    int tmp_res, tmp_err = (*hs_conn_p)->get_error_code();
+    while ((tmp_res = check_request_key(request_key)) == 1)
+    {
+      DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+        (*hs_conn_p)->get_num_req_bufd()));
+      DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+        (*hs_conn_p)->get_num_req_sent()));
+      DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+        (*hs_conn_p)->get_num_req_rcvd()));
+      DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+        (*hs_conn_p)->get_response_end_offset()));
+      if ((internal_error = (*hs_conn_p)->response_recv(num_fields)))
+      {
+        if (!tmp_err && internal_error > 0)
+        {
+          (*hs_conn_p)->clear_error();
+        } else {
+          (*hs_conn_p)->write_error_to_log(__func__, __FILE__, __LINE__);
+#ifndef DBUG_OFF
+          if ((*hs_conn_p)->get_response_end_offset() > 0 &&
+            (*hs_conn_p)->get_readbuf_begin())
+          {
+            char tmp_buf[MAX_FIELD_WIDTH];
+            String tmp_str(tmp_buf, MAX_FIELD_WIDTH, &my_charset_bin);
+            tmp_str.length(0);
+            tmp_str.append((*hs_conn_p)->get_readbuf_begin(),
+              (*hs_conn_p)->get_response_end_offset(), &my_charset_bin);
+            DBUG_PRINT("info",("spider hs readbuf01 size=%zu str=%s",
+              (*hs_conn_p)->get_response_end_offset(), tmp_str.c_ptr_safe()));
+          }
+#endif
+          DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+            (*hs_conn_p)->get_num_req_bufd()));
+          DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+            (*hs_conn_p)->get_num_req_sent()));
+          DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+            (*hs_conn_p)->get_num_req_rcvd()));
+          DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+            (*hs_conn_p)->get_response_end_offset()));
+          if (internal_error > 0)
+          {
+            (*hs_conn_p)->response_buf_remove();
+            if ((*hs_conn_p)->get_error_code())
+            {
+              DBUG_PRINT("info",("spider hs %d %s",
+                (*hs_conn_p)->get_error_code(),
+                (*hs_conn_p)->get_error().ptr()));
+              (*hs_conn_p)->write_error_to_log(__func__, __FILE__, __LINE__);
+            }
+            DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+              (*hs_conn_p)->get_num_req_bufd()));
+            DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+              (*hs_conn_p)->get_num_req_sent()));
+            DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+              (*hs_conn_p)->get_num_req_rcvd()));
+            DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+              (*hs_conn_p)->get_response_end_offset()));
+            (*hs_conn_p)->clear_error();
+          }
+          delete result;
+          DBUG_RETURN(NULL);
+        }
+      }
+      DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+        (*hs_conn_p)->get_num_req_bufd()));
+      DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+        (*hs_conn_p)->get_num_req_sent()));
+      DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+        (*hs_conn_p)->get_num_req_rcvd()));
+      DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+        (*hs_conn_p)->get_response_end_offset()));
+      (*hs_conn_p)->response_buf_remove();
+      DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+        (*hs_conn_p)->get_num_req_bufd()));
+      DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+        (*hs_conn_p)->get_num_req_sent()));
+      DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+        (*hs_conn_p)->get_num_req_rcvd()));
+      DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+        (*hs_conn_p)->get_response_end_offset()));
+    }
+    if (tmp_res == -1)
+    {
+      DBUG_PRINT("info",("spider ER_SPIDER_REQUEST_KEY_NUM"));
+      *error_num = ER_SPIDER_REQUEST_KEY_NUM;
+      DBUG_RETURN(NULL);
+    }
+  }
+  DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+    (*hs_conn_p)->get_num_req_bufd()));
+  DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+    (*hs_conn_p)->get_num_req_sent()));
+  DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+    (*hs_conn_p)->get_num_req_rcvd()));
+  DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+    (*hs_conn_p)->get_response_end_offset()));
+  if (
+    (internal_error = (*hs_conn_p)->response_recv(num_fields))
+  ) {
+    (*hs_conn_p)->write_error_to_log(__func__, __FILE__, __LINE__);
+#ifndef DBUG_OFF
+    if ((*hs_conn_p)->get_response_end_offset() > 0 &&
+      (*hs_conn_p)->get_readbuf_begin())
+    {
+      char tmp_buf[MAX_FIELD_WIDTH];
+      String tmp_str(tmp_buf, MAX_FIELD_WIDTH, &my_charset_bin);
+      tmp_str.length(0);
+      tmp_str.append((*hs_conn_p)->get_readbuf_begin(),
+        (*hs_conn_p)->get_response_end_offset(), &my_charset_bin);
+      DBUG_PRINT("info",("spider hs readbuf01 size=%zu str=%s",
+        (*hs_conn_p)->get_response_end_offset(), tmp_str.c_ptr_safe()));
+    }
+#endif
+    DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+      (*hs_conn_p)->get_num_req_bufd()));
+    DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+      (*hs_conn_p)->get_num_req_sent()));
+    DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+      (*hs_conn_p)->get_num_req_rcvd()));
+    DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+      (*hs_conn_p)->get_response_end_offset()));
+    if (internal_error > 0)
+    {
+      (*hs_conn_p)->response_buf_remove();
+      if ((*hs_conn_p)->get_error_code())
+      {
+        DBUG_PRINT("info",("spider hs %d %s",
+          (*hs_conn_p)->get_error_code(),
+          (*hs_conn_p)->get_error().ptr()));
+        (*hs_conn_p)->write_error_to_log(__func__, __FILE__, __LINE__);
+      }
+      DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+        (*hs_conn_p)->get_num_req_bufd()));
+      DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+        (*hs_conn_p)->get_num_req_sent()));
+      DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+        (*hs_conn_p)->get_num_req_rcvd()));
+      DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+        (*hs_conn_p)->get_response_end_offset()));
+    }
+    delete result;
+    DBUG_RETURN(NULL);
+  }
+#ifndef DBUG_OFF
+  if ((*hs_conn_p)->get_response_end_offset() > 0 &&
+    (*hs_conn_p)->get_readbuf_begin())
+  {
+    char tmp_buf[MAX_FIELD_WIDTH];
+    String tmp_str(tmp_buf, MAX_FIELD_WIDTH, &my_charset_bin);
+    tmp_str.length(0);
+    tmp_str.append((*hs_conn_p)->get_readbuf_begin(),
+      (*hs_conn_p)->get_response_end_offset(), &my_charset_bin);
+    DBUG_PRINT("info",("spider hs readbuf02 size=%zu str=%s",
+      (*hs_conn_p)->get_response_end_offset(), tmp_str.c_ptr_safe()));
+  }
+#endif
+  DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+    (*hs_conn_p)->get_num_req_bufd()));
+  DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+    (*hs_conn_p)->get_num_req_sent()));
+  DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+    (*hs_conn_p)->get_num_req_rcvd()));
+  DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+    (*hs_conn_p)->get_response_end_offset()));
+  field_count = (uint) num_fields;
+  result->field_count = field_count;
+  DBUG_RETURN(result);
+}
+
+int spider_db_handlersocket::next_result()
+{
+  SPIDER_HS_CONN *hs_conn_p = &hs_conn;
+  DBUG_ENTER("spider_db_handlersocket::next_result");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider hs hs_conn=%p", hs_conn_p));
+  if ((*hs_conn_p)->stable_point())
+    DBUG_RETURN(-1);
+  DBUG_RETURN(0);
+}
+
+uint spider_db_handlersocket::affected_rows()
+{
+  int error_num;
+  const SPIDER_HS_STRING_REF *hs_row;
+  SPIDER_HS_CONN *hs_conn_p = &hs_conn;
+  DBUG_ENTER("spider_db_handlersocket::affected_rows");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider hs hs_conn=%p", hs_conn_p));
+  if (
+    field_count != 1 ||
+    !(hs_row = (*hs_conn_p)->get_next_row()) ||
+    !hs_row->begin()
+  ) {
+    DBUG_RETURN(0);
+  }
+  DBUG_RETURN((uint) my_strtoll10(hs_row->begin(), (char**) NULL, &error_num));
+}
+
+uint spider_db_handlersocket::matched_rows()
+{
+  DBUG_ENTER("spider_db_handlersocket::matched_rows");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(0);
+}
+
+bool spider_db_handlersocket::inserted_info(
+  spider_db_handler *handler,
+  ha_copy_info *copy_info
+) {
+  DBUG_ENTER("spider_db_handlersocket::inserted_info");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(FALSE);
+}
+
+ulonglong spider_db_handlersocket::last_insert_id()
+{
+  DBUG_ENTER("spider_db_handlersocket::last_insert_id");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket::set_character_set(
+  const char *csname
+) {
+  DBUG_ENTER("spider_db_handlersocket::set_character_set");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket::select_db(
+  const char *dbname
+) {
+  DBUG_ENTER("spider_db_handlersocket::select_db");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket::consistent_snapshot(
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_handlersocket::consistent_snapshot");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+bool spider_db_handlersocket::trx_start_in_bulk_sql()
+{
+  DBUG_ENTER("spider_db_handlersocket::trx_start_in_bulk_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(FALSE);
+}
+
+int spider_db_handlersocket::start_transaction(
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_handlersocket::start_transaction");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket::commit(
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_handlersocket::commit");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket::rollback(
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_handlersocket::rollback");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+bool spider_db_handlersocket::xa_start_in_bulk_sql()
+{
+  DBUG_ENTER("spider_db_handlersocket::xa_start_in_bulk_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(FALSE);
+}
+
+int spider_db_handlersocket::xa_start(
+  XID *xid,
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_handlersocket::xa_start");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket::xa_end(
+  XID *xid,
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_handlersocket::xa_end");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket::xa_prepare(
+  XID *xid,
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_handlersocket::xa_prepare");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket::xa_commit(
+  XID *xid,
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_handlersocket::xa_commit");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket::xa_rollback(
+  XID *xid,
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_handlersocket::xa_rollback");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+bool spider_db_handlersocket::set_trx_isolation_in_bulk_sql()
+{
+  DBUG_ENTER("spider_db_handlersocket::set_trx_isolation_in_bulk_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(FALSE);
+}
+
+int spider_db_handlersocket::set_trx_isolation(
+  int trx_isolation,
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_handlersocket::set_trx_isolation");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+bool spider_db_handlersocket::set_autocommit_in_bulk_sql()
+{
+  DBUG_ENTER("spider_db_handlersocket::set_autocommit_in_bulk_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(FALSE);
+}
+
+int spider_db_handlersocket::set_autocommit(
+  bool autocommit,
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_handlersocket::set_autocommit");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+bool spider_db_handlersocket::set_sql_log_off_in_bulk_sql()
+{
+  DBUG_ENTER("spider_db_handlersocket::set_sql_log_off_in_bulk_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(FALSE);
+}
+
+int spider_db_handlersocket::set_sql_log_off(
+  bool sql_log_off,
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_handlersocket::set_sql_log_off");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+bool spider_db_handlersocket::set_wait_timeout_in_bulk_sql()
+{
+  DBUG_ENTER("spider_db_handlersocket::set_wait_timeout_in_bulk_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(FALSE);
+}
+
+int spider_db_handlersocket::set_wait_timeout(
+  int wait_timeout,
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_handlersocket::set_wait_timeout");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+bool spider_db_handlersocket::set_sql_mode_in_bulk_sql()
+{
+  DBUG_ENTER("spider_db_handlersocket::set_sql_mode_in_bulk_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(FALSE);
+}
+
+int spider_db_handlersocket::set_sql_mode(
+  sql_mode_t sql_mode,
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_handlersocket::set_sql_mode");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+bool spider_db_handlersocket::set_time_zone_in_bulk_sql()
+{
+  DBUG_ENTER("spider_db_handlersocket::set_time_zone_in_bulk_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(FALSE);
+}
+
+int spider_db_handlersocket::set_time_zone(
+  Time_zone *time_zone,
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_handlersocket::set_time_zone");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket::show_master_status(
+  SPIDER_TRX *trx,
+  SPIDER_SHARE *share,
+  int all_link_idx,
+  int *need_mon,
+  TABLE *table,
+  spider_string *str,
+  int mode,
+  SPIDER_DB_RESULT **res1,
+  SPIDER_DB_RESULT **res2
+) {
+  DBUG_ENTER("spider_db_handlersocket::show_master_status");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket::append_sql(
+  char *sql,
+  ulong sql_length,
+  st_spider_db_request_key *request_key
+) {
+  int error_num;
+  size_t req_num;
+  SPIDER_HS_CONN *hs_conn_p = &hs_conn;
+  DBUG_ENTER("spider_db_handlersocket::append_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if ((error_num = append_request_key(request_key)))
+    DBUG_RETURN(error_num);
+  DBUG_PRINT("info",("spider hs hs_conn=%p", hs_conn_p));
+  DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+    (*hs_conn_p)->get_num_req_bufd()));
+  DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+    (*hs_conn_p)->get_num_req_sent()));
+  DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+    (*hs_conn_p)->get_num_req_rcvd()));
+  DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+    (*hs_conn_p)->get_response_end_offset()));
+  if (!(req_num = (*hs_conn_p)->request_buf_append(sql, sql + sql_length)))
+  {
+    DBUG_PRINT("info",("spider hs %d %s",
+      (*hs_conn_p)->get_error_code(),
+      (*hs_conn_p)->get_error().ptr()));
+    (*hs_conn_p)->write_error_to_log(__func__, __FILE__, __LINE__);
+    DBUG_RETURN((*hs_conn_p)->get_error_code());
+  }
+  DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+    (*hs_conn_p)->get_num_req_bufd()));
+  DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+    (*hs_conn_p)->get_num_req_sent()));
+  DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+    (*hs_conn_p)->get_num_req_rcvd()));
+  DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+    (*hs_conn_p)->get_response_end_offset()));
+  while (req_num > 1)
+  {
+    if ((error_num = append_request_key(request_key)))
+      DBUG_RETURN(error_num);
+    --req_num;
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket::append_open_handler(
+  uint handler_id,
+  const char *db_name,
+  const char *table_name,
+  const char *index_name,
+  const char *sql,
+  st_spider_db_request_key *request_key
+) {
+  int error_num;
+  SPIDER_HS_CONN *hs_conn_p = &hs_conn;
+  DBUG_ENTER("spider_db_handlersocket::append_open_handler");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if ((error_num = append_request_key(request_key)))
+    DBUG_RETURN(error_num);
+  DBUG_PRINT("info",("spider hs hs_conn=%p", hs_conn_p));
+  DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+    (*hs_conn_p)->get_num_req_bufd()));
+  DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+    (*hs_conn_p)->get_num_req_sent()));
+  DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+    (*hs_conn_p)->get_num_req_rcvd()));
+  DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+    (*hs_conn_p)->get_response_end_offset()));
+  (*hs_conn_p)->request_buf_open_index(
+    handler_id,
+    db_name,
+    table_name,
+    index_name,
+    sql
+  );
+  DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+    (*hs_conn_p)->get_num_req_bufd()));
+  DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+    (*hs_conn_p)->get_num_req_sent()));
+  DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+    (*hs_conn_p)->get_num_req_rcvd()));
+  DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+    (*hs_conn_p)->get_response_end_offset()));
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket::append_select(
+  uint handler_id,
+  spider_string *sql,
+  SPIDER_DB_HS_STRING_REF_BUFFER *keys,
+  int limit,
+  int skip,
+  st_spider_db_request_key *request_key
+) {
+  int error_num;
+  SPIDER_HS_CONN *hs_conn_p = &hs_conn;
+  DBUG_ENTER("spider_db_handlersocket::append_select");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if ((error_num = append_request_key(request_key)))
+    DBUG_RETURN(error_num);
+  DBUG_PRINT("info",("spider hs hs_conn=%p", hs_conn_p));
+  DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+    (*hs_conn_p)->get_num_req_bufd()));
+  DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+    (*hs_conn_p)->get_num_req_sent()));
+  DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+    (*hs_conn_p)->get_num_req_rcvd()));
+  DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+    (*hs_conn_p)->get_response_end_offset()));
+  (*hs_conn_p)->request_buf_exec_generic(
+    handler_id,
+    SPIDER_HS_STRING_REF(sql->ptr(), sql->length()),
+    keys->ptr(), (size_t) keys->size(),
+    limit, skip,
+    SPIDER_HS_STRING_REF(),
+    NULL, 0);
+  DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+    (*hs_conn_p)->get_num_req_bufd()));
+  DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+    (*hs_conn_p)->get_num_req_sent()));
+  DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+    (*hs_conn_p)->get_num_req_rcvd()));
+  DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+    (*hs_conn_p)->get_response_end_offset()));
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket::append_insert(
+  uint handler_id,
+  SPIDER_DB_HS_STRING_REF_BUFFER *upds,
+  st_spider_db_request_key *request_key
+) {
+  int error_num;
+  SPIDER_HS_CONN *hs_conn_p = &hs_conn;
+  DBUG_ENTER("spider_db_handlersocket::append_insert");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if ((error_num = append_request_key(request_key)))
+    DBUG_RETURN(error_num);
+  DBUG_PRINT("info",("spider hs hs_conn=%p", hs_conn_p));
+  DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+    (*hs_conn_p)->get_num_req_bufd()));
+  DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+    (*hs_conn_p)->get_num_req_sent()));
+  DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+    (*hs_conn_p)->get_num_req_rcvd()));
+  DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+    (*hs_conn_p)->get_response_end_offset()));
+  (*hs_conn_p)->request_buf_exec_generic(
+    handler_id,
+    SPIDER_HS_STRING_REF(SPIDER_SQL_HS_INSERT_STR, SPIDER_SQL_HS_INSERT_LEN),
+    upds->ptr(), (size_t) upds->size(),
+    0, 0,
+    SPIDER_HS_STRING_REF(), NULL, 0);
+  DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+    (*hs_conn_p)->get_num_req_bufd()));
+  DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+    (*hs_conn_p)->get_num_req_sent()));
+  DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+    (*hs_conn_p)->get_num_req_rcvd()));
+  DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+    (*hs_conn_p)->get_response_end_offset()));
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket::append_update(
+  uint handler_id,
+  spider_string *sql,
+  SPIDER_DB_HS_STRING_REF_BUFFER *keys,
+  SPIDER_DB_HS_STRING_REF_BUFFER *upds,
+  int limit,
+  int skip,
+  bool increment,
+  bool decrement,
+  st_spider_db_request_key *request_key
+) {
+  int error_num;
+  SPIDER_HS_CONN *hs_conn_p = &hs_conn;
+  DBUG_ENTER("spider_db_handlersocket::append_update");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if ((error_num = append_request_key(request_key)))
+    DBUG_RETURN(error_num);
+  DBUG_PRINT("info",("spider hs hs_conn=%p", hs_conn_p));
+  DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+    (*hs_conn_p)->get_num_req_bufd()));
+  DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+    (*hs_conn_p)->get_num_req_sent()));
+  DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+    (*hs_conn_p)->get_num_req_rcvd()));
+  DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+    (*hs_conn_p)->get_response_end_offset()));
+  (*hs_conn_p)->request_buf_exec_generic(
+    handler_id,
+    SPIDER_HS_STRING_REF(sql->ptr(), sql->length()),
+    keys->ptr(), (size_t) keys->size(),
+    limit, skip,
+    increment ?
+      SPIDER_HS_STRING_REF(SPIDER_SQL_HS_INCREMENT_STR,
+        SPIDER_SQL_HS_INCREMENT_LEN) :
+      decrement ?
+        SPIDER_HS_STRING_REF(SPIDER_SQL_HS_DECREMENT_STR,
+          SPIDER_SQL_HS_DECREMENT_LEN) :
+        SPIDER_HS_STRING_REF(SPIDER_SQL_HS_UPDATE_STR,
+          SPIDER_SQL_HS_UPDATE_LEN),
+    upds->ptr(), (size_t) upds->size()
+  );
+  DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+    (*hs_conn_p)->get_num_req_bufd()));
+  DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+    (*hs_conn_p)->get_num_req_sent()));
+  DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+    (*hs_conn_p)->get_num_req_rcvd()));
+  DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+    (*hs_conn_p)->get_response_end_offset()));
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket::append_delete(
+  uint handler_id,
+  spider_string *sql,
+  SPIDER_DB_HS_STRING_REF_BUFFER *keys,
+  int limit,
+  int skip,
+  st_spider_db_request_key *request_key
+) {
+  int error_num;
+  SPIDER_HS_CONN *hs_conn_p = &hs_conn;
+  DBUG_ENTER("spider_db_handlersocket::append_delete");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if ((error_num = append_request_key(request_key)))
+    DBUG_RETURN(error_num);
+  DBUG_PRINT("info",("spider hs hs_conn=%p", hs_conn_p));
+  DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+    (*hs_conn_p)->get_num_req_bufd()));
+  DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+    (*hs_conn_p)->get_num_req_sent()));
+  DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+    (*hs_conn_p)->get_num_req_rcvd()));
+  DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+    (*hs_conn_p)->get_response_end_offset()));
+  (*hs_conn_p)->request_buf_exec_generic(
+    handler_id,
+    SPIDER_HS_STRING_REF(sql->ptr(), sql->length()),
+    keys->ptr(), (size_t) keys->size(),
+    limit, skip,
+    SPIDER_HS_STRING_REF(SPIDER_SQL_HS_DELETE_STR, SPIDER_SQL_HS_DELETE_LEN),
+    NULL, 0);
+  DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+    (*hs_conn_p)->get_num_req_bufd()));
+  DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+    (*hs_conn_p)->get_num_req_sent()));
+  DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+    (*hs_conn_p)->get_num_req_rcvd()));
+  DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+    (*hs_conn_p)->get_response_end_offset()));
+  DBUG_RETURN(0);
+}
+
+void spider_db_handlersocket::reset_request_queue()
+{
+  SPIDER_HS_CONN *hs_conn_p = &hs_conn;
+  DBUG_ENTER("spider_db_handlersocket::reset_request_queue");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider hs hs_conn=%p", hs_conn_p));
+  DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+    (*hs_conn_p)->get_num_req_bufd()));
+  DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+    (*hs_conn_p)->get_num_req_sent()));
+  DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+    (*hs_conn_p)->get_num_req_rcvd()));
+  DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+    (*hs_conn_p)->get_response_end_offset()));
+  (*hs_conn_p)->request_reset();
+  DBUG_PRINT("info",("spider hs num_req_bufd=%zu",
+    (*hs_conn_p)->get_num_req_bufd()));
+  DBUG_PRINT("info",("spider hs num_req_sent=%zu",
+    (*hs_conn_p)->get_num_req_sent()));
+  DBUG_PRINT("info",("spider hs num_req_rcvd=%zu",
+    (*hs_conn_p)->get_num_req_rcvd()));
+  DBUG_PRINT("info",("spider hs response_end_offset=%zu",
+    (*hs_conn_p)->get_response_end_offset()));
+  reset_request_key_req();
+  DBUG_VOID_RETURN;
+}
+
+size_t spider_db_handlersocket::escape_string(
+  char *to,
+  const char *from,
+  size_t from_length
+) {
+  DBUG_ENTER("spider_db_handlersocket::escape_string");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  memcpy(to, from, from_length);
+  DBUG_RETURN(from_length);
+}
+
+bool spider_db_handlersocket::have_lock_table_list()
+{
+  DBUG_ENTER("spider_db_handlersocket::have_lock_table_list");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(FALSE);
+}
+
+int spider_db_handlersocket::append_lock_tables(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_db_handlersocket::lock_tables");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket::append_unlock_tables(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_db_handlersocket::append_unlock_tables");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(0);
+}
+
+uint spider_db_handlersocket::get_lock_table_hash_count()
+{
+  DBUG_ENTER("spider_db_handlersocket::get_lock_table_hash_count");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+void spider_db_handlersocket::reset_lock_table_hash()
+{
+  DBUG_ENTER("spider_db_handlersocket::reset_lock_table_hash");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_VOID_RETURN;
+}
+
+uint spider_db_handlersocket::get_opened_handler_count()
+{
+  DBUG_ENTER("spider_db_handlersocket::get_opened_handler_count");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(handler_open_array.elements);
+}
+
+void spider_db_handlersocket::reset_opened_handler()
+{
+  ha_spider *tmp_spider;
+  int tmp_link_idx;
+  SPIDER_LINK_FOR_HASH **tmp_link_for_hash;
+  DBUG_ENTER("spider_db_handlersocket::reset_opened_handler");
+  DBUG_PRINT("info",("spider this=%p", this));
+  while ((tmp_link_for_hash =
+    (SPIDER_LINK_FOR_HASH **) pop_dynamic(&handler_open_array)))
+  {
+    tmp_spider = (*tmp_link_for_hash)->spider;
+    tmp_link_idx = (*tmp_link_for_hash)->link_idx;
+    tmp_spider->clear_handler_opened(tmp_link_idx, conn->conn_kind);
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_db_handlersocket::set_dup_key_idx(
+  ha_spider *spider,
+  int link_idx
+) {
+  DBUG_ENTER("spider_db_handlersocket::set_dup_key_idx");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_VOID_RETURN;
+}
+
+int spider_db_handlersocket::append_request_key(
+  st_spider_db_request_key *request_key
+) {
+  st_spider_db_request_key *tmp_request_key;
+  DBUG_ENTER("spider_db_handlersocket::append_request_key");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider request_key=%p", request_key));
+  if (request_key)
+  {
+    DBUG_PRINT("info",("spider request_key->spider_thread_id=%llu",
+      request_key->spider_thread_id));
+    DBUG_PRINT("info",("spider request_key->query_id=%llu",
+      request_key->query_id));
+    DBUG_PRINT("info",("spider request_key->handler=%p",
+      request_key->handler));
+    DBUG_PRINT("info",("spider request_key->request_id=%llu",
+      request_key->request_id));
+    if (request_key_reuse_first)
+    {
+      tmp_request_key = request_key_reuse_first;
+      request_key_reuse_first = request_key_reuse_first->next;
+      if (!request_key_reuse_first)
+        request_key_reuse_last = NULL;
+    } else {
+      if (!(tmp_request_key = (st_spider_db_request_key *)
+        spider_malloc(spider_current_trx, 1, sizeof(st_spider_db_request_key),
+          MYF(MY_WME)))
+      )
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    *tmp_request_key = *request_key;
+    tmp_request_key->next = NULL;
+    if (request_key_req_last)
+      request_key_req_last->next = tmp_request_key;
+    else
+      request_key_req_first = tmp_request_key;
+    request_key_req_last = tmp_request_key;
+  }
+  DBUG_RETURN(0);
+}
+
+void spider_db_handlersocket::reset_request_key_req()
+{
+  DBUG_ENTER("spider_db_handlersocket::reset_request_key_req");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (request_key_req_first)
+  {
+    if (request_key_reuse_last)
+      request_key_reuse_last->next = request_key_req_first;
+    else
+      request_key_reuse_first = request_key_req_first;
+    request_key_reuse_last = request_key_req_last;
+    request_key_req_first = NULL;
+    request_key_req_last = NULL;
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_db_handlersocket::reset_request_key_snd()
+{
+  DBUG_ENTER("spider_db_handlersocket::reset_request_key_snd");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (request_key_snd_first)
+  {
+    if (request_key_reuse_last)
+      request_key_reuse_last->next = request_key_snd_first;
+    else
+      request_key_reuse_first = request_key_snd_first;
+    request_key_reuse_last = request_key_snd_last;
+    request_key_snd_first = NULL;
+    request_key_snd_last = NULL;
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_db_handlersocket::move_request_key_to_snd()
+{
+  DBUG_ENTER("spider_db_handlersocket::move_request_key_to_snd");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (request_key_req_first)
+  {
+    if (request_key_snd_last)
+      request_key_snd_last->next = request_key_req_first;
+    else
+      request_key_snd_first = request_key_req_first;
+    request_key_snd_last = request_key_req_last;
+    request_key_req_first = NULL;
+    request_key_req_last = NULL;
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_db_handlersocket::check_request_key(
+  st_spider_db_request_key *request_key
+) {
+  st_spider_db_request_key *tmp_request_key;
+  DBUG_ENTER("spider_db_handlersocket::check_request_key");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider request_key=%p", request_key));
+  DBUG_PRINT("info",("spider request_key_snd_first=%p",
+    request_key_snd_first));
+  if (!request_key_snd_first)
+  {
+    DBUG_PRINT("info",("spider -1"));
+    DBUG_RETURN(-1);
+  }
+  tmp_request_key = request_key_snd_first;
+  request_key_snd_first = request_key_snd_first->next;
+  if (!request_key_snd_first)
+    request_key_snd_last = NULL;
+  tmp_request_key->next = NULL;
+  if (request_key_reuse_last)
+    request_key_reuse_last->next = tmp_request_key;
+  else
+    request_key_reuse_first = tmp_request_key;
+  request_key_reuse_last = tmp_request_key;
+
+  DBUG_PRINT("info",("spider tmp_request_key->spider_thread_id=%llu",
+    tmp_request_key->spider_thread_id));
+  DBUG_PRINT("info",("spider request_key->spider_thread_id=%llu",
+    request_key->spider_thread_id));
+  DBUG_PRINT("info",("spider tmp_request_key->query_id=%llu",
+    tmp_request_key->query_id));
+  DBUG_PRINT("info",("spider request_key->query_id=%llu",
+    request_key->query_id));
+  DBUG_PRINT("info",("spider tmp_request_key->handler=%p",
+    tmp_request_key->handler));
+  DBUG_PRINT("info",("spider request_key->handler=%p",
+    request_key->handler));
+  DBUG_PRINT("info",("spider tmp_request_key->request_id=%llu",
+    tmp_request_key->request_id));
+  DBUG_PRINT("info",("spider request_key->request_id=%llu",
+    request_key->request_id));
+  if (
+    tmp_request_key->spider_thread_id != request_key->spider_thread_id ||
+    tmp_request_key->query_id != request_key->query_id ||
+    tmp_request_key->handler != request_key->handler ||
+    tmp_request_key->request_id != request_key->request_id
+  ) {
+    DBUG_PRINT("info",("spider 1"));
+    DBUG_RETURN(1);
+  }
+  DBUG_PRINT("info",("spider 0"));
+  DBUG_RETURN(0);
+}
+
+bool spider_db_handlersocket::cmp_request_key_to_snd(
+  st_spider_db_request_key *request_key
+) {
+  DBUG_ENTER("spider_db_handlersocket::cmp_request_key_to_snd");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider request_key=%p", request_key));
+  if (
+    !request_key
+  ) {
+    DBUG_PRINT("info",("spider TRUE"));
+    DBUG_RETURN(TRUE);
+  }
+  DBUG_PRINT("info",("spider request_key_snd_first=%p",
+    request_key_snd_first));
+  if (
+    !request_key_snd_first
+  ) {
+    DBUG_PRINT("info",("spider FALSE"));
+    DBUG_RETURN(FALSE);
+  }
+  DBUG_PRINT("info",("spider request_key_snd_first->spider_thread_id=%llu",
+    request_key_snd_first->spider_thread_id));
+  DBUG_PRINT("info",("spider request_key->spider_thread_id=%llu",
+    request_key->spider_thread_id));
+  DBUG_PRINT("info",("spider request_key_snd_first->query_id=%llu",
+    request_key_snd_first->query_id));
+  DBUG_PRINT("info",("spider request_key->query_id=%llu",
+    request_key->query_id));
+  DBUG_PRINT("info",("spider request_key_snd_first->handler=%p",
+    request_key_snd_first->handler));
+  DBUG_PRINT("info",("spider request_key->handler=%p",
+    request_key->handler));
+  DBUG_PRINT("info",("spider request_key_snd_first->request_id=%llu",
+    request_key_snd_first->request_id));
+  DBUG_PRINT("info",("spider request_key->request_id=%llu",
+    request_key->request_id));
+  if (
+    request_key_snd_first->spider_thread_id != request_key->spider_thread_id ||
+    request_key_snd_first->query_id != request_key->query_id ||
+    request_key_snd_first->handler != request_key->handler ||
+    request_key_snd_first->request_id != request_key->request_id
+  ) {
+    DBUG_PRINT("info",("spider FALSE"));
+    DBUG_RETURN(FALSE);
+  }
+  DBUG_PRINT("info",("spider TRUE"));
+  DBUG_RETURN(TRUE);
+}
+
+spider_db_handlersocket_util::spider_db_handlersocket_util() : spider_db_util()
+{
+  DBUG_ENTER("spider_db_handlersocket_util::spider_db_handlersocket_util");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_db_handlersocket_util::~spider_db_handlersocket_util()
+{
+  DBUG_ENTER("spider_db_handlersocket_util::~spider_db_handlersocket_util");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+int spider_db_handlersocket_util::append_name(
+  spider_string *str,
+  const char *name,
+  uint name_length
+) {
+  DBUG_ENTER("spider_db_handlersocket_util::append_name");
+  str->q_append(name, name_length);
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket_util::append_name_with_charset(
+  spider_string *str,
+  const char *name,
+  uint name_length,
+  CHARSET_INFO *name_charset
+) {
+  DBUG_ENTER("spider_db_handlersocket_util::append_name_with_charset");
+  if (str->reserve(SPIDER_SQL_NAME_QUOTE_LEN * 2 + name_length * 2))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  str->append(name, name_length, name_charset);
+  if (str->reserve(SPIDER_SQL_NAME_QUOTE_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket_util::append_escaped_name(
+  spider_string *str,
+  const char *name,
+  uint name_length
+) {
+  int error_num;
+  DBUG_ENTER("spider_db_handlersocket_util::append_name");
+  if (str->reserve(SPIDER_SQL_NAME_QUOTE_LEN * 2 + name_length * 2))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  if ((error_num = spider_db_append_name_with_quote_str_internal(
+    str, name, name_length, dbton_id)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  if (str->reserve(SPIDER_SQL_NAME_QUOTE_LEN))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket_util::append_escaped_name_with_charset(
+  spider_string *str,
+  const char *name,
+  uint name_length,
+  CHARSET_INFO *name_charset
+) {
+  int error_num;
+  DBUG_ENTER("spider_db_handlersocket_util::append_name_with_charset");
+  if (str->reserve(SPIDER_SQL_NAME_QUOTE_LEN * 2 + name_length * 2))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  if ((error_num = spider_db_append_name_with_quote_str_internal(
+    str, name, name_length, name_charset, dbton_id)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  if (str->reserve(SPIDER_SQL_NAME_QUOTE_LEN))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  DBUG_RETURN(0);
+}
+
+bool spider_db_handlersocket_util::is_name_quote(
+  const char head_code
+) {
+  DBUG_ENTER("spider_db_handlersocket_util::is_name_quote");
+  DBUG_RETURN(head_code == *name_quote_str);
+}
+
+int spider_db_handlersocket_util::append_escaped_name_quote(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_db_handlersocket_util::append_escaped_name_quote");
+  if (str->reserve(SPIDER_SQL_NAME_QUOTE_LEN * 2))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket_util::append_column_value(
+  ha_spider *spider,
+  spider_string *str,
+  Field *field,
+  const uchar *new_ptr,
+  CHARSET_INFO *access_charset
+) {
+  char buf[MAX_FIELD_WIDTH];
+  spider_string tmp_str(buf, MAX_FIELD_WIDTH, &my_charset_bin);
+  String *ptr;
+  uint length;
+  DBUG_ENTER("spider_db_handlersocket_util::append_column_value");
+  tmp_str.init_calc_mem(180);
+
+  if (new_ptr)
+  {
+    if (
+      field->type() == MYSQL_TYPE_BLOB ||
+      field->real_type() == MYSQL_TYPE_VARCHAR
+    ) {
+      length = uint2korr(new_ptr);
+      tmp_str.set_quick((char *) new_ptr + HA_KEY_BLOB_LENGTH, length,
+        &my_charset_bin);
+      ptr = tmp_str.get_str();
+    } else if (field->type() == MYSQL_TYPE_GEOMETRY)
+    {
+/*
+      uint mlength = SIZEOF_STORED_DOUBLE, lcnt;
+      uchar *dest = (uchar *) buf;
+      const uchar *source;
+      for (lcnt = 0; lcnt < 4; lcnt++)
+      {
+        mlength = SIZEOF_STORED_DOUBLE;
+        source = new_ptr + mlength + SIZEOF_STORED_DOUBLE * lcnt;
+        while (mlength--)
+          *dest++ = *--source;
+      }
+      tmp_str.length(SIZEOF_STORED_DOUBLE * lcnt);
+*/
+      double xmin, xmax, ymin, ymax;
+/*
+      float8store(buf,xmin);
+      float8store(buf+8,xmax);
+      float8store(buf+16,ymin);
+      float8store(buf+24,ymax);
+      memcpy(&xmin,new_ptr,sizeof(xmin));
+      memcpy(&xmax,new_ptr + 8,sizeof(xmax));
+      memcpy(&ymin,new_ptr + 16,sizeof(ymin));
+      memcpy(&ymax,new_ptr + 24,sizeof(ymax));
+      float8get(xmin, buf);
+      float8get(xmax, buf + 8);
+      float8get(ymin, buf + 16);
+      float8get(ymax, buf + 24);
+      DBUG_PRINT("info", ("spider geo is %f %f %f %f",
+        xmin, xmax, ymin, ymax));
+      DBUG_PRINT("info", ("spider geo is %.14g %.14g %.14g %.14g",
+        xmin, xmax, ymin, ymax));
+*/
+      float8get(xmin, new_ptr);
+      float8get(xmax, new_ptr + 8);
+      float8get(ymin, new_ptr + 16);
+      float8get(ymax, new_ptr + 24);
+      DBUG_PRINT("info", ("spider geo is %f %f %f %f",
+        xmin, xmax, ymin, ymax));
+/*
+      float8get(xmin, new_ptr + SIZEOF_STORED_DOUBLE * 4);
+      float8get(xmax, new_ptr + SIZEOF_STORED_DOUBLE * 5);
+      float8get(ymin, new_ptr + SIZEOF_STORED_DOUBLE * 6);
+      float8get(ymax, new_ptr + SIZEOF_STORED_DOUBLE * 7);
+      DBUG_PRINT("info", ("spider geo is %f %f %f %f",
+        xmin, xmax, ymin, ymax));
+      float8get(xmin, new_ptr + SIZEOF_STORED_DOUBLE * 8);
+      float8get(xmax, new_ptr + SIZEOF_STORED_DOUBLE * 9);
+      float8get(ymin, new_ptr + SIZEOF_STORED_DOUBLE * 10);
+      float8get(ymax, new_ptr + SIZEOF_STORED_DOUBLE * 11);
+      DBUG_PRINT("info", ("spider geo is %f %f %f %f",
+        xmin, xmax, ymin, ymax));
+      float8get(xmin, new_ptr + SIZEOF_STORED_DOUBLE * 12);
+      float8get(xmax, new_ptr + SIZEOF_STORED_DOUBLE * 13);
+      float8get(ymin, new_ptr + SIZEOF_STORED_DOUBLE * 14);
+      float8get(ymax, new_ptr + SIZEOF_STORED_DOUBLE * 15);
+      DBUG_PRINT("info", ("spider geo is %f %f %f %f",
+        xmin, xmax, ymin, ymax));
+*/
+/*
+      tmp_str.set_quick((char *) new_ptr, SIZEOF_STORED_DOUBLE * 4,
+        &my_charset_bin);
+*/
+      tmp_str.length(0);
+      tmp_str.q_append((char *) SPIDER_SQL_LINESTRING_HEAD_STR,
+        SPIDER_SQL_LINESTRING_HEAD_LEN);
+      tmp_str.q_append((char *) new_ptr, SIZEOF_STORED_DOUBLE);
+      tmp_str.q_append((char *) new_ptr + SIZEOF_STORED_DOUBLE * 2,
+        SIZEOF_STORED_DOUBLE);
+      tmp_str.q_append((char *) new_ptr + SIZEOF_STORED_DOUBLE,
+        SIZEOF_STORED_DOUBLE);
+      tmp_str.q_append((char *) new_ptr + SIZEOF_STORED_DOUBLE * 3,
+        SIZEOF_STORED_DOUBLE);
+      ptr = tmp_str.get_str();
+    } else {
+      ptr = field->val_str(tmp_str.get_str(), new_ptr);
+      tmp_str.mem_calc();
+    }
+  } else {
+    ptr = field->val_str(tmp_str.get_str());
+    tmp_str.mem_calc();
+  }
+  DBUG_PRINT("info", ("spider field->type() is %d", field->type()));
+  DBUG_PRINT("info", ("spider ptr->length() is %d", ptr->length()));
+/*
+  if (
+    field->type() == MYSQL_TYPE_BIT ||
+    (field->type() >= MYSQL_TYPE_TINY_BLOB &&
+      field->type() <= MYSQL_TYPE_BLOB)
+  ) {
+    uchar *hex_ptr = (uchar *) ptr->ptr(), *end_ptr;
+    char *str_ptr;
+    DBUG_PRINT("info", ("spider HEX"));
+    if (str->reserve(SPIDER_SQL_HEX_LEN + ptr->length() * 2))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_HEX_STR, SPIDER_SQL_HEX_LEN);
+    str_ptr = (char *) str->ptr() + str->length();
+    for (end_ptr = hex_ptr + ptr->length(); hex_ptr < end_ptr; hex_ptr++)
+    {
+      *str_ptr++ = spider_dig_upper[(*hex_ptr) >> 4];
+      *str_ptr++ = spider_dig_upper[(*hex_ptr) & 0x0F];
+    }
+    str->length(str->length() + ptr->length() * 2);
+  } else 
+*/
+  spider_handlersocket_handler *hs_handler = (spider_handlersocket_handler *)
+    spider->dbton_handler[spider_dbton_handlersocket.dbton_id];
+  spider_string *hs_str;
+  if (!(hs_str = hs_handler->hs_strs.add(
+    &hs_handler->hs_strs_pos, ptr->ptr(), ptr->length())))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  SPIDER_HS_STRING_REF ref =
+    SPIDER_HS_STRING_REF(hs_str->ptr(), hs_str->length());
+  if (hs_handler->hs_adding_keys)
+  {
+    DBUG_PRINT("info", ("spider add to key:%s", hs_str->c_ptr_safe()));
+    hs_handler->hs_keys.push_back(ref);
+  } else {
+    DBUG_PRINT("info", ("spider add to upd:%s", hs_str->c_ptr_safe()));
+    hs_handler->hs_upds.push_back(ref);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket_util::append_trx_isolation(
+  spider_string *str,
+  int trx_isolation
+) {
+  DBUG_ENTER("spider_db_handlersocket_util::append_trx_isolation");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket_util::append_autocommit(
+  spider_string *str,
+  bool autocommit
+) {
+  DBUG_ENTER("spider_db_handlersocket_util::append_autocommit");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket_util::append_sql_log_off(
+  spider_string *str,
+  bool sql_log_off
+) {
+  DBUG_ENTER("spider_db_handlersocket_util::append_sql_log_off");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket_util::append_wait_timeout(
+  spider_string *str,
+  int wait_timeout
+) {
+  DBUG_ENTER("spider_db_handlersocket_util::append_wait_timeout");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket_util::append_sql_mode(
+  spider_string *str,
+  sql_mode_t sql_mode
+) {
+  DBUG_ENTER("spider_db_handlersocket_util::append_sql_mode");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket_util::append_time_zone(
+  spider_string *str,
+  Time_zone *time_zone
+) {
+  DBUG_ENTER("spider_db_handlersocket_util::append_time_zone");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket_util::append_start_transaction(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_db_handlersocket_util::append_start_transaction");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket_util::append_xa_start(
+  spider_string *str,
+  XID *xid
+) {
+  DBUG_ENTER("spider_db_handlersocket_util::append_xa_start");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket_util::append_lock_table_head(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_db_handlersocket_util::append_lock_table_head");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket_util::append_lock_table_body(
+  spider_string *str,
+  const char *db_name,
+  uint db_name_length,
+  CHARSET_INFO *db_name_charset,
+  const char *table_name,
+  uint table_name_length,
+  CHARSET_INFO *table_name_charset,
+  int lock_type
+) {
+  DBUG_ENTER("spider_db_handlersocket_util::append_lock_table_body");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket_util::append_lock_table_tail(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_db_handlersocket_util::append_lock_table_tail");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket_util::append_unlock_table(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_db_handlersocket_util::append_unlock_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket_util::open_item_func(
+  Item_func *item_func,
+  ha_spider *spider,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  bool use_fields,
+  spider_fields *fields
+) {
+  uint dbton_id = spider_dbton_handlersocket.dbton_id;
+  int error_num;
+  Item *item, **item_list = item_func->arguments();
+  uint roop_count, item_count = item_func->argument_count(), start_item = 0;
+  const char *func_name = SPIDER_SQL_NULL_CHAR_STR,
+    *separator_str = SPIDER_SQL_NULL_CHAR_STR,
+    *last_str = SPIDER_SQL_NULL_CHAR_STR;
+  int func_name_length = SPIDER_SQL_NULL_CHAR_LEN,
+    separator_str_length = SPIDER_SQL_NULL_CHAR_LEN,
+    last_str_length = SPIDER_SQL_NULL_CHAR_LEN;
+  int use_pushdown_udf;
+  bool merge_func = FALSE;
+  DBUG_ENTER("spider_db_handlersocket_util::open_item_func");
+  if (str)
+  {
+    if (str->reserve(SPIDER_SQL_OPEN_PAREN_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  }
+  DBUG_PRINT("info",("spider functype = %d", item_func->functype()));
+  switch (item_func->functype())
+  {
+    case Item_func::ISNULL_FUNC:
+      last_str = SPIDER_SQL_IS_NULL_STR;
+      last_str_length = SPIDER_SQL_IS_NULL_LEN;
+      break;
+    case Item_func::ISNOTNULL_FUNC:
+      last_str = SPIDER_SQL_IS_NOT_NULL_STR;
+      last_str_length = SPIDER_SQL_IS_NOT_NULL_LEN;
+      break;
+    case Item_func::UNKNOWN_FUNC:
+      func_name = (char*) item_func->func_name();
+      func_name_length = strlen(func_name);
+      DBUG_PRINT("info",("spider func_name = %s", func_name));
+      DBUG_PRINT("info",("spider func_name_length = %d", func_name_length));
+      if (func_name_length == 1 &&
+        (
+          !strncasecmp("+", func_name, func_name_length) ||
+          !strncasecmp("-", func_name, func_name_length) ||
+          !strncasecmp("*", func_name, func_name_length) ||
+          !strncasecmp("/", func_name, func_name_length) ||
+          !strncasecmp("%", func_name, func_name_length) ||
+          !strncasecmp("&", func_name, func_name_length) ||
+          !strncasecmp("|", func_name, func_name_length) ||
+          !strncasecmp("^", func_name, func_name_length)
+        )
+      ) {
+        /* no action */
+        break;
+      } else if (func_name_length == 2 &&
+        (
+          !strncasecmp("<<", func_name, func_name_length) ||
+          !strncasecmp(">>", func_name, func_name_length)
+        )
+      ) {
+        /* no action */
+        break;
+      } else if (func_name_length == 3 &&
+        !strncasecmp("div", func_name, func_name_length)
+      ) {
+        /* no action */
+        break;
+      } else if (func_name_length == 4)
+      {
+        if (
+          !strncasecmp("rand", func_name, func_name_length) &&
+#ifdef SPIDER_Item_args_arg_count_IS_PROTECTED
+          !item_func->argument_count()
+#else
+          !item_func->arg_count
+#endif
+        ) {
+          if (str)
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+          DBUG_RETURN(spider_db_open_item_int(item_func, NULL, spider, str,
+            alias, alias_length, dbton_id, use_fields, fields));
+        } else if (
+          !strncasecmp("case", func_name, func_name_length)
+        ) {
+#ifdef ITEM_FUNC_CASE_PARAMS_ARE_PUBLIC
+          Item_func_case *item_func_case = (Item_func_case *) item_func;
+          if (str)
+          {
+            if (str->reserve(SPIDER_SQL_CASE_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(SPIDER_SQL_CASE_STR, SPIDER_SQL_CASE_LEN);
+          }
+          if (item_func_case->first_expr_num != -1)
+          {
+            if ((error_num = spider_db_print_item_type(
+              item_list[item_func_case->first_expr_num], NULL, spider, str,
+              alias, alias_length, dbton_id, use_fields, fields)))
+              DBUG_RETURN(error_num);
+          }
+          for (roop_count = 0; roop_count < item_func_case->ncases;
+            roop_count += 2)
+          {
+            if (str)
+            {
+              if (str->reserve(SPIDER_SQL_WHEN_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_WHEN_STR, SPIDER_SQL_WHEN_LEN);
+            }
+            if ((error_num = spider_db_print_item_type(
+              item_list[roop_count], NULL, spider, str,
+              alias, alias_length, dbton_id, use_fields, fields)))
+              DBUG_RETURN(error_num);
+            if (str)
+            {
+              if (str->reserve(SPIDER_SQL_THEN_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_THEN_STR, SPIDER_SQL_THEN_LEN);
+            }
+            if ((error_num = spider_db_print_item_type(
+              item_list[roop_count + 1], NULL, spider, str,
+              alias, alias_length, dbton_id, use_fields, fields)))
+              DBUG_RETURN(error_num);
+          }
+          if (item_func_case->else_expr_num != -1)
+          {
+            if (str)
+            {
+              if (str->reserve(SPIDER_SQL_ELSE_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_ELSE_STR, SPIDER_SQL_ELSE_LEN);
+            }
+            if ((error_num = spider_db_print_item_type(
+              item_list[item_func_case->else_expr_num], NULL, spider, str,
+              alias, alias_length, dbton_id, use_fields, fields)))
+              DBUG_RETURN(error_num);
+          }
+          if (str)
+          {
+            if (str->reserve(SPIDER_SQL_END_LEN + SPIDER_SQL_CLOSE_PAREN_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(SPIDER_SQL_END_STR, SPIDER_SQL_END_LEN);
+            str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+              SPIDER_SQL_CLOSE_PAREN_LEN);
+          }
+          DBUG_RETURN(0);
+#else
+          DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+#endif
+        }
+      } else if (func_name_length == 6 &&
+        !strncasecmp("istrue", func_name, func_name_length)
+      ) {
+        last_str = SPIDER_SQL_IS_TRUE_STR;
+        last_str_length = SPIDER_SQL_IS_TRUE_LEN;
+        break;
+      } else if (func_name_length == 7)
+      {
+        if (!strncasecmp("isfalse", func_name, func_name_length))
+        {
+          last_str = SPIDER_SQL_IS_FALSE_STR;
+          last_str_length = SPIDER_SQL_IS_FALSE_LEN;
+          break;
+        } else if (
+          !strncasecmp("sysdate", func_name, func_name_length) ||
+          !strncasecmp("curdate", func_name, func_name_length) ||
+          !strncasecmp("curtime", func_name, func_name_length)
+        ) {
+          if (str)
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+          DBUG_RETURN(spider_db_open_item_string(item_func, NULL, spider, str,
+            alias, alias_length, dbton_id, use_fields, fields));
+        } else if (
+          !strncasecmp("convert", func_name, func_name_length)
+        ) {
+          if (str)
+          {
+            if (str->reserve(func_name_length * 2 + SPIDER_SQL_OPEN_PAREN_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(func_name, func_name_length);
+            str->q_append(SPIDER_SQL_OPEN_PAREN_STR,
+              SPIDER_SQL_OPEN_PAREN_LEN);
+            last_str = SPIDER_SQL_CLOSE_PAREN_STR;
+            last_str_length = SPIDER_SQL_CLOSE_PAREN_LEN;
+          }
+          break;
+        }
+      } else if (func_name_length == 8 &&
+        (
+          !strncasecmp("utc_date", func_name, func_name_length) ||
+          !strncasecmp("utc_time", func_name, func_name_length)
+        )
+      ) {
+        if (str)
+          str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+        DBUG_RETURN(spider_db_open_item_string(item_func, NULL, spider, str,
+          alias, alias_length, dbton_id, use_fields, fields));
+      } else if (func_name_length == 9 &&
+        !strncasecmp("isnottrue", func_name, func_name_length)
+      ) {
+        last_str = SPIDER_SQL_IS_NOT_TRUE_STR;
+        last_str_length = SPIDER_SQL_IS_NOT_TRUE_LEN;
+        break;
+      } else if (func_name_length == 10)
+      {
+        if (!strncasecmp("isnotfalse", func_name, func_name_length))
+        {
+          last_str = SPIDER_SQL_IS_NOT_FALSE_STR;
+          last_str_length = SPIDER_SQL_IS_NOT_FALSE_LEN;
+          break;
+        } else if (!strncasecmp("column_get", func_name, func_name_length))
+        {
+          if (str)
+          {
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+            if (str->reserve(func_name_length + SPIDER_SQL_OPEN_PAREN_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(func_name, func_name_length);
+            str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+          }
+          func_name = SPIDER_SQL_COMMA_STR;
+          func_name_length = SPIDER_SQL_COMMA_LEN;
+          separator_str = SPIDER_SQL_COMMA_STR;
+          separator_str_length = SPIDER_SQL_COMMA_LEN;
+          break;
+        }
+      } else if (func_name_length == 12)
+      {
+        if (!strncasecmp("cast_as_date", func_name, func_name_length))
+        {
+          item = item_list[0];
+          if (item->type() == Item::FUNC_ITEM)
+          {
+            DBUG_PRINT("info",("spider child is FUNC_ITEM"));
+            Item_func *ifunc = (Item_func *) item;
+            if (ifunc->functype() == Item_func::UNKNOWN_FUNC)
+            {
+              const char *child_func_name;
+              int child_func_name_length;
+              DBUG_PRINT("info",("spider child is UNKNOWN_FUNC"));
+              child_func_name = (char*) ifunc->func_name();
+              child_func_name_length = strlen(child_func_name);
+              DBUG_PRINT("info",("spider child func_name is %s", child_func_name));
+              if (
+                child_func_name_length == 10 &&
+                !strncasecmp("column_get", child_func_name, child_func_name_length)
+              ) {
+                DBUG_PRINT("info",("spider this is merge func"));
+                merge_func = TRUE;
+              }
+            }
+          }
+
+          if (str)
+          {
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+            if (!merge_func)
+            {
+              if (str->reserve(SPIDER_SQL_CAST_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_CAST_STR, SPIDER_SQL_CAST_LEN);
+            }
+          }
+          last_str = SPIDER_SQL_AS_DATE_STR;
+          last_str_length = SPIDER_SQL_AS_DATE_LEN;
+          break;
+        } else if (!strncasecmp("cast_as_time", func_name, func_name_length))
+        {
+          item = item_list[0];
+          if (item->type() == Item::FUNC_ITEM)
+          {
+            DBUG_PRINT("info",("spider child is FUNC_ITEM"));
+            Item_func *ifunc = (Item_func *) item;
+            if (ifunc->functype() == Item_func::UNKNOWN_FUNC)
+            {
+              const char *child_func_name;
+              int child_func_name_length;
+              DBUG_PRINT("info",("spider child is UNKNOWN_FUNC"));
+              child_func_name = (char*) ifunc->func_name();
+              child_func_name_length = strlen(child_func_name);
+              DBUG_PRINT("info",("spider child func_name is %s", child_func_name));
+              if (
+                child_func_name_length == 10 &&
+                !strncasecmp("column_get", child_func_name, child_func_name_length)
+              ) {
+                DBUG_PRINT("info",("spider this is merge func"));
+                merge_func = TRUE;
+              }
+            }
+          }
+
+          if (str)
+          {
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+            if (!merge_func)
+            {
+              if (str->reserve(SPIDER_SQL_CAST_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_CAST_STR, SPIDER_SQL_CAST_LEN);
+            }
+          }
+          last_str = SPIDER_SQL_AS_TIME_STR;
+          last_str_length = SPIDER_SQL_AS_TIME_LEN;
+          break;
+        }
+      } else if (func_name_length == 13)
+      {
+        if (!strncasecmp("utc_timestamp", func_name, func_name_length))
+        {
+          if (str)
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+          DBUG_RETURN(spider_db_open_item_string(item_func, NULL, spider, str,
+            alias, alias_length, dbton_id, use_fields, fields));
+        } else if (!strncasecmp("timestampdiff", func_name, func_name_length))
+        {
+#ifdef ITEM_FUNC_TIMESTAMPDIFF_ARE_PUBLIC
+          Item_func_timestamp_diff *item_func_timestamp_diff =
+            (Item_func_timestamp_diff *) item_func;
+          if (str)
+          {
+            const char *interval_str;
+            uint interval_len;
+            switch (item_func_timestamp_diff->int_type)
+            {
+              case INTERVAL_YEAR:
+                interval_str = SPIDER_SQL_YEAR_STR;
+                interval_len = SPIDER_SQL_YEAR_LEN;
+                break;
+              case INTERVAL_QUARTER:
+                interval_str = SPIDER_SQL_QUARTER_STR;
+                interval_len = SPIDER_SQL_QUARTER_LEN;
+                break;
+              case INTERVAL_MONTH:
+                interval_str = SPIDER_SQL_MONTH_STR;
+                interval_len = SPIDER_SQL_MONTH_LEN;
+                break;
+              case INTERVAL_WEEK:
+                interval_str = SPIDER_SQL_WEEK_STR;
+                interval_len = SPIDER_SQL_WEEK_LEN;
+                break;
+              case INTERVAL_DAY:
+                interval_str = SPIDER_SQL_DAY_STR;
+                interval_len = SPIDER_SQL_DAY_LEN;
+                break;
+              case INTERVAL_HOUR:
+                interval_str = SPIDER_SQL_HOUR_STR;
+                interval_len = SPIDER_SQL_HOUR_LEN;
+                break;
+              case INTERVAL_MINUTE:
+                interval_str = SPIDER_SQL_MINUTE_STR;
+                interval_len = SPIDER_SQL_MINUTE_LEN;
+                break;
+              case INTERVAL_SECOND:
+                interval_str = SPIDER_SQL_SECOND_STR;
+                interval_len = SPIDER_SQL_SECOND_LEN;
+                break;
+              case INTERVAL_MICROSECOND:
+                interval_str = SPIDER_SQL_MICROSECOND_STR;
+                interval_len = SPIDER_SQL_MICROSECOND_LEN;
+                break;
+              default:
+                interval_str = "";
+                interval_len = 0;
+                break;
+            }
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+            if (str->reserve(func_name_length + SPIDER_SQL_OPEN_PAREN_LEN +
+              interval_len + SPIDER_SQL_COMMA_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(func_name, func_name_length);
+            str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+            str->q_append(interval_str, interval_len);
+            str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+          }
+          if ((error_num = spider_db_print_item_type(item_list[0], NULL, spider,
+            str, alias, alias_length, dbton_id, use_fields, fields)))
+            DBUG_RETURN(error_num);
+          if (str)
+          {
+            if (str->reserve(SPIDER_SQL_COMMA_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+          }
+          if ((error_num = spider_db_print_item_type(item_list[1], NULL, spider,
+            str, alias, alias_length, dbton_id, use_fields, fields)))
+            DBUG_RETURN(error_num);
+          if (str)
+          {
+            if (str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+              SPIDER_SQL_CLOSE_PAREN_LEN);
+          }
+          DBUG_RETURN(0);
+#else
+          DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+#endif
+        }
+      } else if (func_name_length == 14)
+      {
+        if (!strncasecmp("cast_as_binary", func_name, func_name_length))
+        {
+          item = item_list[0];
+          if (item->type() == Item::FUNC_ITEM)
+          {
+            DBUG_PRINT("info",("spider child is FUNC_ITEM"));
+            Item_func *ifunc = (Item_func *) item;
+            if (ifunc->functype() == Item_func::UNKNOWN_FUNC)
+            {
+              const char *child_func_name;
+              int child_func_name_length;
+              DBUG_PRINT("info",("spider child is UNKNOWN_FUNC"));
+              child_func_name = (char*) ifunc->func_name();
+              child_func_name_length = strlen(child_func_name);
+              DBUG_PRINT("info",("spider child func_name is %s", child_func_name));
+              if (
+                child_func_name_length == 10 &&
+                !strncasecmp("column_get", child_func_name, child_func_name_length)
+              ) {
+                DBUG_PRINT("info",("spider this is merge func"));
+                merge_func = TRUE;
+              }
+            }
+          }
+
+          if (str)
+          {
+            char tmp_buf[MAX_FIELD_WIDTH], *tmp_ptr, *tmp_ptr2;
+            spider_string tmp_str(tmp_buf, MAX_FIELD_WIDTH, str->charset());
+            tmp_str.init_calc_mem(123);
+            tmp_str.length(0);
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+            if (!merge_func)
+            {
+              if (str->reserve(SPIDER_SQL_CAST_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_CAST_STR, SPIDER_SQL_CAST_LEN);
+            }
+#if MYSQL_VERSION_ID < 50500
+            item_func->print(tmp_str.get_str(), QT_IS);
+#else
+            item_func->print(tmp_str.get_str(), QT_TO_SYSTEM_CHARSET);
+#endif
+            tmp_str.mem_calc();
+            if (tmp_str.reserve(1))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            tmp_ptr = tmp_str.c_ptr_quick();
+            DBUG_PRINT("info",("spider tmp_ptr = %s", tmp_ptr));
+            while ((tmp_ptr2 = strstr(tmp_ptr, SPIDER_SQL_AS_BINARY_STR)))
+              tmp_ptr = tmp_ptr2 + 1;
+            last_str = tmp_ptr - 1;
+            last_str_length = strlen(last_str) - SPIDER_SQL_CLOSE_PAREN_LEN;
+          }
+          break;
+        } else if (!strncasecmp("cast_as_signed", func_name, func_name_length))
+        {
+          item = item_list[0];
+          if (item->type() == Item::FUNC_ITEM)
+          {
+            DBUG_PRINT("info",("spider child is FUNC_ITEM"));
+            Item_func *ifunc = (Item_func *) item;
+            if (ifunc->functype() == Item_func::UNKNOWN_FUNC)
+            {
+              const char *child_func_name;
+              int child_func_name_length;
+              DBUG_PRINT("info",("spider child is UNKNOWN_FUNC"));
+              child_func_name = (char*) ifunc->func_name();
+              child_func_name_length = strlen(child_func_name);
+              DBUG_PRINT("info",("spider child func_name is %s", child_func_name));
+              if (
+                child_func_name_length == 10 &&
+                !strncasecmp("column_get", child_func_name, child_func_name_length)
+              ) {
+                DBUG_PRINT("info",("spider this is merge func"));
+                merge_func = TRUE;
+              }
+            }
+          }
+
+          if (str)
+          {
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+            if (!merge_func)
+            {
+              if (str->reserve(SPIDER_SQL_CAST_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_CAST_STR, SPIDER_SQL_CAST_LEN);
+            }
+          }
+          last_str = SPIDER_SQL_AS_SIGNED_STR;
+          last_str_length = SPIDER_SQL_AS_SIGNED_LEN;
+          break;
+        }
+      } else if (func_name_length == 16)
+      {
+        if (!strncasecmp("cast_as_unsigned", func_name, func_name_length))
+        {
+          item = item_list[0];
+          if (item->type() == Item::FUNC_ITEM)
+          {
+            DBUG_PRINT("info",("spider child is FUNC_ITEM"));
+            Item_func *ifunc = (Item_func *) item;
+            if (ifunc->functype() == Item_func::UNKNOWN_FUNC)
+            {
+              const char *child_func_name;
+              int child_func_name_length;
+              DBUG_PRINT("info",("spider child is UNKNOWN_FUNC"));
+              child_func_name = (char*) ifunc->func_name();
+              child_func_name_length = strlen(child_func_name);
+              DBUG_PRINT("info",("spider child func_name is %s", child_func_name));
+              if (
+                child_func_name_length == 10 &&
+                !strncasecmp("column_get", child_func_name, child_func_name_length)
+              ) {
+                DBUG_PRINT("info",("spider this is merge func"));
+                merge_func = TRUE;
+              }
+            }
+          }
+
+          if (str)
+          {
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+            if (!merge_func)
+            {
+              if (str->reserve(SPIDER_SQL_CAST_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_CAST_STR, SPIDER_SQL_CAST_LEN);
+            }
+          }
+          last_str = SPIDER_SQL_AS_UNSIGNED_STR;
+          last_str_length = SPIDER_SQL_AS_UNSIGNED_LEN;
+          break;
+        } else if (!strncasecmp("decimal_typecast", func_name,
+          func_name_length))
+        {
+          item = item_list[0];
+          if (item->type() == Item::FUNC_ITEM)
+          {
+            DBUG_PRINT("info",("spider child is FUNC_ITEM"));
+            Item_func *ifunc = (Item_func *) item;
+            if (ifunc->functype() == Item_func::UNKNOWN_FUNC)
+            {
+              const char *child_func_name;
+              int child_func_name_length;
+              DBUG_PRINT("info",("spider child is UNKNOWN_FUNC"));
+              child_func_name = (char*) ifunc->func_name();
+              child_func_name_length = strlen(child_func_name);
+              DBUG_PRINT("info",("spider child func_name is %s", child_func_name));
+              if (
+                child_func_name_length == 10 &&
+                !strncasecmp("column_get", child_func_name, child_func_name_length)
+              ) {
+                DBUG_PRINT("info",("spider this is merge func"));
+                merge_func = TRUE;
+              }
+            }
+          }
+
+          if (str)
+          {
+            char tmp_buf[MAX_FIELD_WIDTH], *tmp_ptr, *tmp_ptr2;
+            spider_string tmp_str(tmp_buf, MAX_FIELD_WIDTH, str->charset());
+            tmp_str.init_calc_mem(124);
+            tmp_str.length(0);
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+            if (!merge_func)
+            {
+              if (str->reserve(SPIDER_SQL_CAST_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_CAST_STR, SPIDER_SQL_CAST_LEN);
+            }
+#if MYSQL_VERSION_ID < 50500
+            item_func->print(tmp_str.get_str(), QT_IS);
+#else
+            item_func->print(tmp_str.get_str(), QT_TO_SYSTEM_CHARSET);
+#endif
+            tmp_str.mem_calc();
+            if (tmp_str.reserve(1))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            tmp_ptr = tmp_str.c_ptr_quick();
+            DBUG_PRINT("info",("spider tmp_ptr = %s", tmp_ptr));
+            while ((tmp_ptr2 = strstr(tmp_ptr, SPIDER_SQL_AS_DECIMAL_STR)))
+              tmp_ptr = tmp_ptr2 + 1;
+            last_str = tmp_ptr - 1;
+            last_str_length = strlen(last_str) - SPIDER_SQL_CLOSE_PAREN_LEN;
+          }
+          break;
+        } else if (!strncasecmp("cast_as_datetime", func_name,
+          func_name_length))
+        {
+          item = item_list[0];
+          if (item->type() == Item::FUNC_ITEM)
+          {
+            DBUG_PRINT("info",("spider child is FUNC_ITEM"));
+            Item_func *ifunc = (Item_func *) item;
+            if (ifunc->functype() == Item_func::UNKNOWN_FUNC)
+            {
+              const char *child_func_name;
+              int child_func_name_length;
+              DBUG_PRINT("info",("spider child is UNKNOWN_FUNC"));
+              child_func_name = (char*) ifunc->func_name();
+              child_func_name_length = strlen(child_func_name);
+              DBUG_PRINT("info",("spider child func_name is %s", child_func_name));
+              if (
+                child_func_name_length == 10 &&
+                !strncasecmp("column_get", child_func_name, child_func_name_length)
+              ) {
+                DBUG_PRINT("info",("spider this is merge func"));
+                merge_func = TRUE;
+              }
+            }
+          }
+
+          if (str)
+          {
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+            if (!merge_func)
+            {
+              if (str->reserve(SPIDER_SQL_CAST_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_CAST_STR, SPIDER_SQL_CAST_LEN);
+            }
+          }
+          last_str = SPIDER_SQL_AS_DATETIME_STR;
+          last_str_length = SPIDER_SQL_AS_DATETIME_LEN;
+          break;
+        }
+      } else if (func_name_length == 17)
+      {
+        if (!strncasecmp("date_add_interval", func_name, func_name_length))
+        {
+          Item_date_add_interval *item_date_add_interval =
+            (Item_date_add_interval *) item_func;
+          func_name = spider_db_timefunc_interval_str[
+            item_date_add_interval->int_type];
+          func_name_length = strlen(func_name);
+          if ((error_num = spider_db_print_item_type(item_list[0], NULL, spider,
+            str, alias, alias_length, dbton_id, use_fields, fields)))
+            DBUG_RETURN(error_num);
+          if (str)
+          {
+            if (item_date_add_interval->date_sub_interval)
+            {
+              if (str->reserve(SPIDER_SQL_NEGINTERVAL_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_NEGINTERVAL_STR,
+                SPIDER_SQL_NEGINTERVAL_LEN);
+            } else {
+              if (str->reserve(SPIDER_SQL_INTERVAL_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_INTERVAL_STR, SPIDER_SQL_INTERVAL_LEN);
+            }
+          }
+          if ((error_num = spider_db_print_item_type(item_list[1], NULL, spider,
+            str, alias, alias_length, dbton_id, use_fields, fields)))
+            DBUG_RETURN(error_num);
+          if (str)
+          {
+            if (str->reserve(func_name_length + SPIDER_SQL_CLOSE_PAREN_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(func_name, func_name_length);
+            str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+              SPIDER_SQL_CLOSE_PAREN_LEN);
+          }
+          DBUG_RETURN(0);
+        }
+      }
+      if (str)
+      {
+        if (str->reserve(func_name_length + SPIDER_SQL_OPEN_PAREN_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(func_name, func_name_length);
+        str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+      }
+      func_name = SPIDER_SQL_COMMA_STR;
+      func_name_length = SPIDER_SQL_COMMA_LEN;
+      separator_str = SPIDER_SQL_COMMA_STR;
+      separator_str_length = SPIDER_SQL_COMMA_LEN;
+      last_str = SPIDER_SQL_CLOSE_PAREN_STR;
+      last_str_length = SPIDER_SQL_CLOSE_PAREN_LEN;
+      break;
+    case Item_func::NOW_FUNC:
+      if (str)
+        str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+      DBUG_RETURN(spider_db_open_item_string(item_func, NULL, spider, str,
+        alias, alias_length, dbton_id, use_fields, fields));
+    case Item_func::CHAR_TYPECAST_FUNC:
+      DBUG_PRINT("info",("spider CHAR_TYPECAST_FUNC"));
+      {
+        item = item_list[0];
+        if (item->type() == Item::FUNC_ITEM)
+        {
+          DBUG_PRINT("info",("spider child is FUNC_ITEM"));
+          Item_func *ifunc = (Item_func *) item;
+          if (ifunc->functype() == Item_func::UNKNOWN_FUNC)
+          {
+            const char *child_func_name;
+            int child_func_name_length;
+            DBUG_PRINT("info",("spider child is UNKNOWN_FUNC"));
+            child_func_name = (char*) ifunc->func_name();
+            child_func_name_length = strlen(child_func_name);
+            DBUG_PRINT("info",("spider child func_name is %s", child_func_name));
+            if (
+              child_func_name_length == 10 &&
+              !strncasecmp("column_get", child_func_name, child_func_name_length)
+            ) {
+              DBUG_PRINT("info",("spider this is merge func"));
+              merge_func = TRUE;
+            }
+          }
+        }
+
+        if (str)
+        {
+          char tmp_buf[MAX_FIELD_WIDTH], *tmp_ptr, *tmp_ptr2;
+          spider_string tmp_str(tmp_buf, MAX_FIELD_WIDTH, str->charset());
+          tmp_str.init_calc_mem(125);
+          tmp_str.length(0);
+          str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+          if (!merge_func)
+          {
+            if (str->reserve(SPIDER_SQL_CAST_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(SPIDER_SQL_CAST_STR, SPIDER_SQL_CAST_LEN);
+          }
+#if MYSQL_VERSION_ID < 50500
+          item_func->print(tmp_str.get_str(), QT_IS);
+#else
+          item_func->print(tmp_str.get_str(), QT_TO_SYSTEM_CHARSET);
+#endif
+          tmp_str.mem_calc();
+          if (tmp_str.reserve(1))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          tmp_ptr = tmp_str.c_ptr_quick();
+          DBUG_PRINT("info",("spider tmp_ptr = %s", tmp_ptr));
+          while ((tmp_ptr2 = strstr(tmp_ptr, SPIDER_SQL_AS_CHAR_STR)))
+            tmp_ptr = tmp_ptr2 + 1;
+          last_str = tmp_ptr - 1;
+          last_str_length = strlen(last_str) - SPIDER_SQL_CLOSE_PAREN_LEN;
+        }
+      }
+      break;
+    case Item_func::NOT_FUNC:
+      DBUG_PRINT("info",("spider NOT_FUNC"));
+      if (item_list[0]->type() == Item::COND_ITEM)
+      {
+        DBUG_PRINT("info",("spider item_list[0] is COND_ITEM"));
+        Item_cond *item_cond = (Item_cond *) item_list[0];
+        if (item_cond->functype() == Item_func::COND_AND_FUNC)
+        {
+          DBUG_PRINT("info",("spider item_cond is COND_AND_FUNC"));
+          List_iterator_fast<Item> lif(*(item_cond->argument_list()));
+          bool has_expr_cache_item = FALSE;
+          bool has_isnotnull_func = FALSE;
+          bool has_other_item = FALSE;
+          while((item = lif++))
+          {
+#ifdef SPIDER_HAS_EXPR_CACHE_ITEM
+            if (
+              item->type() == Item::EXPR_CACHE_ITEM
+            ) {
+              DBUG_PRINT("info",("spider EXPR_CACHE_ITEM"));
+              has_expr_cache_item = TRUE;
+            } else
+#endif
+            if (
+              item->type() == Item::FUNC_ITEM &&
+              ((Item_func *) item)->functype() == Item_func::ISNOTNULL_FUNC
+            ) {
+              DBUG_PRINT("info",("spider ISNOTNULL_FUNC"));
+              has_isnotnull_func = TRUE;
+            } else {
+              DBUG_PRINT("info",("spider has other item"));
+              DBUG_PRINT("info",("spider COND type=%d", item->type()));
+              has_other_item = TRUE;
+            }
+          }
+          if (has_expr_cache_item && has_isnotnull_func && !has_other_item)
+          {
+            DBUG_PRINT("info",("spider NOT EXISTS skip"));
+            DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+          }
+        }
+      }
+      if (str)
+      {
+        func_name = (char*) item_func->func_name();
+        func_name_length = strlen(func_name);
+        if (str->reserve(func_name_length + SPIDER_SQL_SPACE_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(func_name, func_name_length);
+        str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+      }
+      break;
+    case Item_func::NEG_FUNC:
+      if (str)
+      {
+        func_name = (char*) item_func->func_name();
+        func_name_length = strlen(func_name);
+        if (str->reserve(func_name_length + SPIDER_SQL_SPACE_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(func_name, func_name_length);
+        str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+      }
+      break;
+    case Item_func::IN_FUNC:
+      if (((Item_func_opt_neg *) item_func)->negated)
+      {
+        func_name = SPIDER_SQL_NOT_IN_STR;
+        func_name_length = SPIDER_SQL_NOT_IN_LEN;
+        separator_str = SPIDER_SQL_COMMA_STR;
+        separator_str_length = SPIDER_SQL_COMMA_LEN;
+        last_str = SPIDER_SQL_CLOSE_PAREN_STR;
+        last_str_length = SPIDER_SQL_CLOSE_PAREN_LEN;
+      } else {
+        func_name = SPIDER_SQL_IN_STR;
+        func_name_length = SPIDER_SQL_IN_LEN;
+        separator_str = SPIDER_SQL_COMMA_STR;
+        separator_str_length = SPIDER_SQL_COMMA_LEN;
+        last_str = SPIDER_SQL_CLOSE_PAREN_STR;
+        last_str_length = SPIDER_SQL_CLOSE_PAREN_LEN;
+      }
+      break;
+    case Item_func::BETWEEN:
+      if (((Item_func_opt_neg *) item_func)->negated)
+      {
+        func_name = SPIDER_SQL_NOT_BETWEEN_STR;
+        func_name_length = SPIDER_SQL_NOT_BETWEEN_LEN;
+        separator_str = SPIDER_SQL_AND_STR;
+        separator_str_length = SPIDER_SQL_AND_LEN;
+      } else {
+        func_name = (char*) item_func->func_name();
+        func_name_length = strlen(func_name);
+        separator_str = SPIDER_SQL_AND_STR;
+        separator_str_length = SPIDER_SQL_AND_LEN;
+      }
+      break;
+    case Item_func::UDF_FUNC:
+      use_pushdown_udf = spider_param_use_pushdown_udf(spider->trx->thd,
+        spider->share->use_pushdown_udf);
+      if (!use_pushdown_udf)
+        DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+      if (str)
+      {
+        func_name = (char*) item_func->func_name();
+        func_name_length = strlen(func_name);
+        DBUG_PRINT("info",("spider func_name = %s", func_name));
+        DBUG_PRINT("info",("spider func_name_length = %d", func_name_length));
+        if (str->reserve(func_name_length + SPIDER_SQL_OPEN_PAREN_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(func_name, func_name_length);
+        str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+      }
+      func_name = SPIDER_SQL_COMMA_STR;
+      func_name_length = SPIDER_SQL_COMMA_LEN;
+      separator_str = SPIDER_SQL_COMMA_STR;
+      separator_str_length = SPIDER_SQL_COMMA_LEN;
+      last_str = SPIDER_SQL_CLOSE_PAREN_STR;
+      last_str_length = SPIDER_SQL_CLOSE_PAREN_LEN;
+      break;
+#ifdef MARIADB_BASE_VERSION
+    case Item_func::XOR_FUNC:
+#else
+    case Item_func::COND_XOR_FUNC:
+#endif
+      if (str)
+        str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+      DBUG_RETURN(
+        spider_db_open_item_cond((Item_cond *) item_func, spider, str,
+          alias, alias_length, dbton_id, use_fields, fields));
+    case Item_func::TRIG_COND_FUNC:
+      DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+    case Item_func::GUSERVAR_FUNC:
+      if (str)
+        str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+      if (item_func->result_type() == STRING_RESULT)
+        DBUG_RETURN(spider_db_open_item_string(item_func, NULL, spider, str,
+          alias, alias_length, dbton_id, use_fields, fields));
+      else
+        DBUG_RETURN(spider_db_open_item_int(item_func, NULL, spider, str,
+          alias, alias_length, dbton_id, use_fields, fields));
+    case Item_func::FT_FUNC:
+      if (spider_db_check_ft_idx(item_func, spider) == MAX_KEY)
+        DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+      start_item = 1;
+      if (str)
+      {
+        if (str->reserve(SPIDER_SQL_MATCH_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_MATCH_STR, SPIDER_SQL_MATCH_LEN);
+      }
+      separator_str = SPIDER_SQL_COMMA_STR;
+      separator_str_length = SPIDER_SQL_COMMA_LEN;
+      last_str = SPIDER_SQL_CLOSE_PAREN_STR;
+      last_str_length = SPIDER_SQL_CLOSE_PAREN_LEN;
+      break;
+    case Item_func::SP_EQUALS_FUNC:
+      if (str)
+      {
+        func_name = SPIDER_SQL_MBR_EQUAL_STR;
+        func_name_length = SPIDER_SQL_MBR_EQUAL_LEN;
+        DBUG_PRINT("info",("spider func_name = %s", func_name));
+        DBUG_PRINT("info",("spider func_name_length = %d", func_name_length));
+        if (str->reserve(func_name_length))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(func_name, func_name_length);
+      }
+      func_name = SPIDER_SQL_COMMA_STR;
+      func_name_length = SPIDER_SQL_COMMA_LEN;
+      separator_str = SPIDER_SQL_COMMA_STR;
+      separator_str_length = SPIDER_SQL_COMMA_LEN;
+      last_str = SPIDER_SQL_CLOSE_PAREN_STR;
+      last_str_length = SPIDER_SQL_CLOSE_PAREN_LEN;
+      break;
+    case Item_func::SP_DISJOINT_FUNC:
+    case Item_func::SP_INTERSECTS_FUNC:
+    case Item_func::SP_TOUCHES_FUNC:
+    case Item_func::SP_CROSSES_FUNC:
+    case Item_func::SP_WITHIN_FUNC:
+    case Item_func::SP_CONTAINS_FUNC:
+    case Item_func::SP_OVERLAPS_FUNC:
+      if (str)
+      {
+        func_name = (char*) item_func->func_name();
+        func_name_length = strlen(func_name);
+        DBUG_PRINT("info",("spider func_name = %s", func_name));
+        DBUG_PRINT("info",("spider func_name_length = %d", func_name_length));
+        if (str->reserve(
+#ifndef SPIDER_ITEM_GEOFUNC_NAME_HAS_MBR
+          SPIDER_SQL_MBR_LEN +
+#endif
+          func_name_length + SPIDER_SQL_OPEN_PAREN_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+#ifndef SPIDER_ITEM_GEOFUNC_NAME_HAS_MBR
+        str->q_append(SPIDER_SQL_MBR_STR, SPIDER_SQL_MBR_LEN);
+#endif
+        str->q_append(func_name, func_name_length);
+        str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+      }
+      func_name = SPIDER_SQL_COMMA_STR;
+      func_name_length = SPIDER_SQL_COMMA_LEN;
+      separator_str = SPIDER_SQL_COMMA_STR;
+      separator_str_length = SPIDER_SQL_COMMA_LEN;
+      last_str = SPIDER_SQL_CLOSE_PAREN_STR;
+      last_str_length = SPIDER_SQL_CLOSE_PAREN_LEN;
+      break;
+    case Item_func::EQ_FUNC:
+    case Item_func::EQUAL_FUNC:
+    case Item_func::NE_FUNC:
+    case Item_func::LT_FUNC:
+    case Item_func::LE_FUNC:
+    case Item_func::GE_FUNC:
+    case Item_func::GT_FUNC:
+    case Item_func::LIKE_FUNC:
+      if (str)
+      {
+        func_name = (char*) item_func->func_name();
+        func_name_length = strlen(func_name);
+      }
+      break;
+    default:
+      THD *thd = spider->trx->thd;
+      SPIDER_SHARE *share = spider->share;
+      if (spider_param_skip_default_condition(thd,
+        share->skip_default_condition))
+        DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+      if (str)
+      {
+        func_name = (char*) item_func->func_name();
+        func_name_length = strlen(func_name);
+      }
+      break;
+  }
+  DBUG_PRINT("info",("spider func_name = %s", func_name));
+  DBUG_PRINT("info",("spider func_name_length = %d", func_name_length));
+  DBUG_PRINT("info",("spider separator_str = %s", separator_str));
+  DBUG_PRINT("info",("spider separator_str_length = %d", separator_str_length));
+  DBUG_PRINT("info",("spider last_str = %s", last_str));
+  DBUG_PRINT("info",("spider last_str_length = %d", last_str_length));
+  if (item_count)
+  {
+    item_count--;
+    for (roop_count = start_item; roop_count < item_count; roop_count++)
+    {
+      item = item_list[roop_count];
+      if ((error_num = spider_db_print_item_type(item, NULL, spider, str,
+        alias, alias_length, dbton_id, use_fields, fields)))
+        DBUG_RETURN(error_num);
+      if (roop_count == 1)
+      {
+        func_name = separator_str;
+        func_name_length = separator_str_length;
+      }
+      if (str)
+      {
+        if (str->reserve(func_name_length + SPIDER_SQL_SPACE_LEN * 2))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+        str->q_append(func_name, func_name_length);
+        str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+      }
+    }
+    item = item_list[roop_count];
+    if ((error_num = spider_db_print_item_type(item, NULL, spider, str,
+      alias, alias_length, dbton_id, use_fields, fields)))
+      DBUG_RETURN(error_num);
+  }
+  if (item_func->functype() == Item_func::FT_FUNC)
+  {
+    Item_func_match *item_func_match = (Item_func_match *)item_func;
+    if (str)
+    {
+      if (str->reserve(SPIDER_SQL_AGAINST_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_AGAINST_STR, SPIDER_SQL_AGAINST_LEN);
+    }
+    item = item_list[0];
+    if ((error_num = spider_db_print_item_type(item, NULL, spider, str,
+      alias, alias_length, dbton_id, use_fields, fields)))
+      DBUG_RETURN(error_num);
+    if (str)
+    {
+      if (str->reserve(
+        ((item_func_match->flags & FT_BOOL) ?
+          SPIDER_SQL_IN_BOOLEAN_MODE_LEN : 0) +
+        ((item_func_match->flags & FT_EXPAND) ?
+          SPIDER_SQL_WITH_QUERY_EXPANSION_LEN : 0)
+      ))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      if (item_func_match->flags & FT_BOOL)
+        str->q_append(SPIDER_SQL_IN_BOOLEAN_MODE_STR,
+          SPIDER_SQL_IN_BOOLEAN_MODE_LEN);
+      if (item_func_match->flags & FT_EXPAND)
+        str->q_append(SPIDER_SQL_WITH_QUERY_EXPANSION_STR,
+          SPIDER_SQL_WITH_QUERY_EXPANSION_LEN);
+    }
+  } else if (item_func->functype() == Item_func::UNKNOWN_FUNC)
+  {
+    if (
+      func_name_length == 7 &&
+      !strncasecmp("convert", func_name, func_name_length)
+    ) {
+      if (str)
+      {
+        Item_func_conv_charset *item_func_conv_charset =
+          (Item_func_conv_charset *)item_func;
+        CHARSET_INFO *conv_charset =
+          item_func_conv_charset->SPIDER_Item_func_conv_charset_conv_charset;
+        uint cset_length = strlen(conv_charset->csname);
+        if (str->reserve(SPIDER_SQL_USING_LEN + cset_length))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_USING_STR, SPIDER_SQL_USING_LEN);
+        str->q_append(conv_charset->csname, cset_length);
+      }
+    }
+  }
+  if (str)
+  {
+    if (merge_func)
+      str->length(str->length() - SPIDER_SQL_CLOSE_PAREN_LEN);
+    if (str->reserve(last_str_length + SPIDER_SQL_CLOSE_PAREN_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(last_str, last_str_length);
+    str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+  }
+  DBUG_RETURN(0);
+}
+
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+int spider_db_handlersocket_util::open_item_sum_func(
+  Item_sum *item_sum,
+  ha_spider *spider,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  bool use_fields,
+  spider_fields *fields
+) {
+  uint dbton_id = spider_dbton_handlersocket.dbton_id;
+  uint roop_count, item_count = item_sum->get_arg_count();
+  int error_num;
+  DBUG_ENTER("spider_db_handlersocket_util::open_item_sum_func");
+  DBUG_PRINT("info",("spider Sumfunctype = %d", item_sum->sum_func()));
+  switch (item_sum->sum_func())
+  {
+    case Item_sum::COUNT_FUNC:
+    case Item_sum::SUM_FUNC:
+    case Item_sum::MIN_FUNC:
+    case Item_sum::MAX_FUNC:
+      {
+        const char *func_name = item_sum->func_name();
+        uint func_name_length = strlen(func_name);
+        Item *item, **args = item_sum->get_args();
+        if (str)
+        {
+          if (str->reserve(func_name_length))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(func_name, func_name_length);
+        }
+        if (item_count)
+        {
+          item_count--;
+          for (roop_count = 0; roop_count < item_count; roop_count++)
+          {
+            item = args[roop_count];
+            if ((error_num = spider_db_print_item_type(item, NULL, spider, str,
+              alias, alias_length, dbton_id, use_fields, fields)))
+              DBUG_RETURN(error_num);
+            if (str)
+            {
+              if (str->reserve(SPIDER_SQL_COMMA_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+            }
+          }
+          item = args[roop_count];
+          if ((error_num = spider_db_print_item_type(item, NULL, spider, str,
+            alias, alias_length, dbton_id, use_fields, fields)))
+            DBUG_RETURN(error_num);
+        }
+        if (str)
+        {
+          if (str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+            SPIDER_SQL_CLOSE_PAREN_LEN);
+        }
+      }
+      break;
+    case Item_sum::COUNT_DISTINCT_FUNC:
+    case Item_sum::SUM_DISTINCT_FUNC:
+    case Item_sum::AVG_FUNC:
+    case Item_sum::AVG_DISTINCT_FUNC:
+    case Item_sum::STD_FUNC:
+    case Item_sum::VARIANCE_FUNC:
+    case Item_sum::SUM_BIT_FUNC:
+    case Item_sum::UDF_SUM_FUNC:
+    case Item_sum::GROUP_CONCAT_FUNC:
+    default:
+      DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+  }
+  DBUG_RETURN(0);
+}
+#endif
+
+int spider_db_handlersocket_util::append_escaped_util(
+  spider_string *to,
+  String *from
+) {
+  DBUG_ENTER("spider_db_handlersocket_util::append_escaped_util");
+  DBUG_PRINT("info",("spider this=%p", this));
+  to->append_escape_string(from->ptr(), from->length());
+  DBUG_RETURN(0);
+}
+
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+int spider_db_handlersocket_util::append_from_and_tables(
+  ha_spider *spider,
+  spider_fields *fields,
+  spider_string *str,
+  TABLE_LIST *table_list,
+  uint table_count
+) {
+  DBUG_ENTER("spider_db_handlersocket_util::append_from_and_tables");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket_util::reappend_tables(
+  spider_fields *fields,
+  SPIDER_LINK_IDX_CHAIN *link_idx_chain,
+  spider_string *str
+) {
+  DBUG_ENTER("spider_db_handlersocket_util::reappend_tables");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket_util::append_where(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_db_handlersocket_util::append_where");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_db_handlersocket_util::append_having(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_db_handlersocket_util::append_having");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+#endif
+
+spider_handlersocket_share::spider_handlersocket_share(
+  st_spider_share *share
+) : spider_db_share(
+  share,
+  spider_dbton_handlersocket.dbton_id
+),
+  table_names_str(NULL),
+  db_names_str(NULL),
+  db_table_str(NULL),
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  db_table_str_hash_value(NULL),
+#endif
+  table_nm_max_length(0),
+  db_nm_max_length(0),
+  column_name_str(NULL),
+  same_db_table_name(TRUE),
+  first_all_link_idx(-1)
+{
+  DBUG_ENTER("spider_handlersocket_share::spider_handlersocket_share");
+  DBUG_PRINT("info",("spider this=%p", this));
+  spider_alloc_calc_mem_init(mem_calc, 186);
+  spider_alloc_calc_mem(spider_current_trx, mem_calc, sizeof(*this));
+  DBUG_VOID_RETURN;
+}
+
+spider_handlersocket_share::~spider_handlersocket_share()
+{
+  DBUG_ENTER("spider_handlersocket_share::~spider_handlersocket_share");
+  DBUG_PRINT("info",("spider this=%p", this));
+  free_column_name_str();
+  free_table_names_str();
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  if (db_table_str_hash_value)
+  {
+    spider_free(spider_current_trx, db_table_str_hash_value, MYF(0));
+  }
+#endif
+  spider_free_mem_calc(spider_current_trx, mem_calc_id, sizeof(*this));
+  DBUG_VOID_RETURN;
+}
+
+int spider_handlersocket_share::init()
+{
+  int error_num;
+  DBUG_ENTER("spider_handlersocket_share::init");
+  DBUG_PRINT("info",("spider this=%p", this));
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  if (!(db_table_str_hash_value = (my_hash_value_type *)
+    spider_bulk_alloc_mem(spider_current_trx, 203,
+      __func__, __FILE__, __LINE__, MYF(MY_WME | MY_ZEROFILL),
+      &db_table_str_hash_value,
+        sizeof(my_hash_value_type) * spider_share->all_link_count,
+      NullS))
+  ) {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+#endif
+
+  if (
+    (error_num = create_table_names_str()) ||
+    (
+      spider_share->table_share &&
+      (error_num = create_column_name_str())
+    )
+  ) {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_share::append_table_name(
+  spider_string *str,
+  int all_link_idx
+) {
+  const char *db_nm = db_names_str[all_link_idx].ptr();
+  uint db_nm_len = db_names_str[all_link_idx].length();
+  const char *table_nm = table_names_str[all_link_idx].ptr();
+  uint table_nm_len = table_names_str[all_link_idx].length();
+  DBUG_ENTER("spider_handlersocket_share::append_table_name");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(db_nm_len + SPIDER_SQL_DOT_LEN + table_nm_len +
+    /* SPIDER_SQL_NAME_QUOTE_LEN */ 4))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  spider_db_handlersocket_utility.append_name(str, db_nm, db_nm_len);
+  str->q_append(SPIDER_SQL_DOT_STR, SPIDER_SQL_DOT_LEN);
+  spider_db_handlersocket_utility.append_name(str, table_nm, table_nm_len);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_share::create_table_names_str()
+{
+  int error_num, roop_count;
+  uint table_nm_len, db_nm_len;
+  spider_string *str, *first_tbl_nm_str, *first_db_nm_str, *first_db_tbl_str;
+  char *first_tbl_nm, *first_db_nm;
+  uint dbton_id = spider_dbton_handlersocket.dbton_id;
+  DBUG_ENTER("spider_handlersocket_share::create_table_names_str");
+  table_names_str = NULL;
+  db_names_str = NULL;
+  db_table_str = NULL;
+  if (
+    !(table_names_str = new spider_string[spider_share->all_link_count]) ||
+    !(db_names_str = new spider_string[spider_share->all_link_count]) ||
+    !(db_table_str = new spider_string[spider_share->all_link_count])
+  ) {
+    error_num = HA_ERR_OUT_OF_MEM;
+    goto error;
+  }
+
+  same_db_table_name = TRUE;
+  first_tbl_nm = spider_share->tgt_table_names[0];
+  first_db_nm = spider_share->tgt_dbs[0];
+  table_nm_len = spider_share->tgt_table_names_lengths[0];
+  db_nm_len = spider_share->tgt_dbs_lengths[0];
+  first_tbl_nm_str = &table_names_str[0];
+  first_db_nm_str = &db_names_str[0];
+  first_db_tbl_str = &db_table_str[0];
+  for (roop_count = 0; roop_count < (int) spider_share->all_link_count;
+    roop_count++)
+  {
+    table_names_str[roop_count].init_calc_mem(86);
+    db_names_str[roop_count].init_calc_mem(87);
+    db_table_str[roop_count].init_calc_mem(88);
+    if (spider_share->sql_dbton_ids[roop_count] != dbton_id)
+      continue;
+    if (first_all_link_idx == -1)
+      first_all_link_idx = roop_count;
+
+    str = &table_names_str[roop_count];
+    if (
+      roop_count != 0 &&
+      same_db_table_name &&
+      spider_share->tgt_table_names_lengths[roop_count] == table_nm_len &&
+      !memcmp(first_tbl_nm, spider_share->tgt_table_names[roop_count],
+        table_nm_len)
+    ) {
+      if (str->copy(*first_tbl_nm_str))
+      {
+        error_num = HA_ERR_OUT_OF_MEM;
+        goto error;
+      }
+    } else {
+      str->set_charset(spider_share->access_charset);
+      if ((error_num = spider_db_append_name_with_quote_str(str,
+        spider_share->tgt_table_names[roop_count], dbton_id)))
+        goto error;
+      if (roop_count)
+      {
+        same_db_table_name = FALSE;
+        DBUG_PRINT("info", ("spider found different table name %s",
+          spider_share->tgt_table_names[roop_count]));
+        if (str->length() > table_nm_max_length)
+          table_nm_max_length = str->length();
+      } else
+        table_nm_max_length = str->length();
+    }
+
+    str = &db_names_str[roop_count];
+    if (
+      roop_count != 0 &&
+      same_db_table_name &&
+      spider_share->tgt_dbs_lengths[roop_count] == db_nm_len &&
+      !memcmp(first_db_nm, spider_share->tgt_dbs[roop_count],
+        db_nm_len)
+    ) {
+      if (str->copy(*first_db_nm_str))
+      {
+        error_num = HA_ERR_OUT_OF_MEM;
+        goto error;
+      }
+    } else {
+      str->set_charset(spider_share->access_charset);
+      if ((error_num = spider_db_append_name_with_quote_str(str,
+        spider_share->tgt_dbs[roop_count], dbton_id)))
+        goto error;
+      if (roop_count)
+      {
+        same_db_table_name = FALSE;
+        DBUG_PRINT("info", ("spider found different db name %s",
+          spider_share->tgt_dbs[roop_count]));
+        if (str->length() > db_nm_max_length)
+          db_nm_max_length = str->length();
+      } else
+        db_nm_max_length = str->length();
+    }
+
+    str = &db_table_str[roop_count];
+    if (
+      roop_count != 0 &&
+      same_db_table_name
+    ) {
+      if (str->copy(*first_db_tbl_str))
+      {
+        error_num = HA_ERR_OUT_OF_MEM;
+        goto error;
+      }
+    } else {
+      str->set_charset(spider_share->access_charset);
+      if ((error_num = append_table_name(str, roop_count)))
+        goto error;
+    }
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+    db_table_str_hash_value[roop_count] = my_calc_hash(
+      &spider_open_connections, (uchar*) str->ptr(), str->length());
+#endif
+  }
+  DBUG_RETURN(0);
+
+error:
+  if (db_table_str)
+  {
+    delete [] db_table_str;
+    db_table_str = NULL;
+  }
+  if (db_names_str)
+  {
+    delete [] db_names_str;
+    db_names_str = NULL;
+  }
+  if (table_names_str)
+  {
+    delete [] table_names_str;
+    table_names_str = NULL;
+  }
+  DBUG_RETURN(error_num);
+}
+
+void spider_handlersocket_share::free_table_names_str()
+{
+  DBUG_ENTER("spider_handlersocket_share::free_table_names_str");
+  if (db_table_str)
+  {
+    delete [] db_table_str;
+    db_table_str = NULL;
+  }
+  if (db_names_str)
+  {
+    delete [] db_names_str;
+    db_names_str = NULL;
+  }
+  if (table_names_str)
+  {
+    delete [] table_names_str;
+    table_names_str = NULL;
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_handlersocket_share::create_column_name_str()
+{
+  spider_string *str;
+  int error_num;
+  Field **field;
+  TABLE_SHARE *table_share = spider_share->table_share;
+  uint dbton_id = spider_dbton_handlersocket.dbton_id;
+  DBUG_ENTER("spider_handlersocket_share::create_column_name_str");
+  if (
+    table_share->fields &&
+    !(column_name_str = new spider_string[table_share->fields])
+  )
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  for (field = table_share->field, str = column_name_str;
+   *field; field++, str++)
+  {
+    str->init_calc_mem(202);
+    str->set_charset(spider_share->access_charset);
+    if ((error_num = spider_db_append_name_with_quote_str(str,
+      (*field)->field_name, dbton_id)))
+      goto error;
+  }
+  DBUG_RETURN(0);
+
+error:
+  if (column_name_str)
+  {
+    delete [] column_name_str;
+    column_name_str = NULL;
+  }
+  DBUG_RETURN(error_num);
+}
+
+void spider_handlersocket_share::free_column_name_str()
+{
+  DBUG_ENTER("spider_handlersocket_share::free_column_name_str");
+  if (column_name_str)
+  {
+    delete [] column_name_str;
+    column_name_str = NULL;
+  }
+  DBUG_VOID_RETURN;
+}
+
+uint spider_handlersocket_share::get_column_name_length(
+  uint field_index
+) {
+  DBUG_ENTER("spider_handlersocket_share::get_column_name_length");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(column_name_str[field_index].length());
+}
+
+int spider_handlersocket_share::append_column_name(
+  spider_string *str,
+  uint field_index
+) {
+  int error_num;
+  DBUG_ENTER("spider_handlersocket_share::append_column_name");
+  DBUG_PRINT("info",("spider this=%p", this));
+  error_num = spider_db_handlersocket_utility.append_name(str,
+    column_name_str[field_index].ptr(), column_name_str[field_index].length());
+  DBUG_RETURN(error_num);
+}
+
+int spider_handlersocket_share::append_column_name_with_alias(
+  spider_string *str,
+  uint field_index,
+  const char *alias,
+  uint alias_length
+) {
+  DBUG_ENTER("spider_handlersocket_share::append_column_name_with_alias");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(
+    alias_length +
+    column_name_str[field_index].length() +
+    /* SPIDER_SQL_NAME_QUOTE_LEN */ 2))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(alias, alias_length);
+  append_column_name(str, field_index);
+  DBUG_RETURN(0);
+}
+
+bool spider_handlersocket_share::need_change_db_table_name()
+{
+  DBUG_ENTER("spider_handlersocket_share::need_change_db_table_name");
+  DBUG_RETURN(!same_db_table_name);
+}
+
+#ifdef SPIDER_HAS_DISCOVER_TABLE_STRUCTURE
+int spider_handlersocket_share::discover_table_structure(
+  SPIDER_TRX *trx,
+  SPIDER_SHARE *spider_share,
+  spider_string *str
+) {
+  DBUG_ENTER("spider_handlersocket_share::discover_table_structure");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(HA_ERR_WRONG_COMMAND);
+}
+#endif
+
+spider_handlersocket_handler::spider_handlersocket_handler(
+  ha_spider *spider,
+  spider_handlersocket_share *db_share
+) : spider_db_handler(
+  spider,
+  db_share
+),
+  handlersocket_share(db_share),
+  link_for_hash(NULL)
+{
+  DBUG_ENTER("spider_handlersocket_handler::spider_handlersocket_handler");
+  DBUG_PRINT("info",("spider this=%p", this));
+  spider_alloc_calc_mem_init(mem_calc, 187);
+  spider_alloc_calc_mem(spider_current_trx, mem_calc, sizeof(*this));
+  DBUG_VOID_RETURN;
+}
+
+spider_handlersocket_handler::~spider_handlersocket_handler()
+{
+  DBUG_ENTER("spider_handlersocket_handler::~spider_handlersocket_handler");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (link_for_hash)
+  {
+    spider_free(spider_current_trx, link_for_hash, MYF(0));
+  }
+  spider_free_mem_calc(spider_current_trx, mem_calc_id, sizeof(*this));
+  DBUG_VOID_RETURN;
+}
+
+int spider_handlersocket_handler::init()
+{
+  st_spider_share *share = spider->share;
+  TABLE *table = spider->get_table();
+  DBUG_ENTER("spider_handlersocket_handler::init");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!(link_for_hash = (SPIDER_LINK_FOR_HASH *)
+    spider_bulk_alloc_mem(spider_current_trx, 204,
+      __func__, __FILE__, __LINE__, MYF(MY_WME | MY_ZEROFILL),
+      &link_for_hash,
+        sizeof(SPIDER_LINK_FOR_HASH) * share->link_count,
+      &minimum_select_bitmap,
+        table ? sizeof(uchar) * no_bytes_in_map(table->read_set) : 0,
+      NullS))
+  ) {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  uint roop_count;
+  for (roop_count = 0; roop_count < share->link_count; roop_count++)
+  {
+    link_for_hash[roop_count].spider = spider;
+    link_for_hash[roop_count].link_idx = roop_count;
+    link_for_hash[roop_count].db_table_str =
+      &handlersocket_share->db_table_str[roop_count];
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+    link_for_hash[roop_count].db_table_str_hash_value =
+      handlersocket_share->db_table_str_hash_value[roop_count];
+#endif
+  }
+  hs_sql.init_calc_mem(63);
+  hs_sql.set_charset(share->access_charset);
+  hs_keys.init();
+  hs_upds.init();
+  hs_strs.init();
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_index_hint(
+  spider_string *str,
+  int link_idx,
+  ulong sql_type
+  )
+{
+  DBUG_ENTER("spider_handlersocket_handler::append_index_hint");
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_table_name_with_adjusting(
+  spider_string *str,
+  int link_idx,
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_table_name_with_adjusting");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_tmp_table_and_sql_for_bka(
+  const key_range *start_key
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_tmp_table_and_sql_for_bka");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::reuse_tmp_table_and_sql_for_bka()
+{
+  DBUG_ENTER("spider_handlersocket_handler::reuse_tmp_table_and_sql_for_bka");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_union_table_and_sql_for_bka(
+  const key_range *start_key
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_union_table_and_sql_for_bka");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::reuse_union_table_and_sql_for_bka()
+{
+  DBUG_ENTER("spider_handlersocket_handler::reuse_union_table_and_sql_for_bka");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_insert_for_recovery(
+  ulong sql_type,
+  int link_idx
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_insert_for_recovery");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_update(
+  const TABLE *table,
+  my_ptrdiff_t ptr_diff
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_update");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_update(
+  const TABLE *table,
+  my_ptrdiff_t ptr_diff,
+  int link_idx
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_update");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_delete(
+  const TABLE *table,
+  my_ptrdiff_t ptr_diff
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_delete");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_delete(
+  const TABLE *table,
+  my_ptrdiff_t ptr_diff,
+  int link_idx
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_delete");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_insert_part()
+{
+  DBUG_ENTER("spider_handlersocket_handler::append_insert_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_update_part()
+{
+  DBUG_ENTER("spider_handlersocket_handler::append_update_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_delete_part()
+{
+  DBUG_ENTER("spider_handlersocket_handler::append_delete_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+int spider_handlersocket_handler::append_increment_update_set_part()
+{
+  DBUG_ENTER("spider_handlersocket_handler::append_increment_update_set_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+#endif
+
+int spider_handlersocket_handler::append_update_set_part()
+{
+  DBUG_ENTER("spider_handlersocket_handler::append_update_set_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+int spider_handlersocket_handler::append_direct_update_set_part()
+{
+  SPIDER_SHARE *share = spider->share;
+  DBUG_ENTER("spider_handlersocket_handler::append_direct_update_set_part");
+  if (
+    spider->do_direct_update &&
+    (spider->direct_update_kinds & SPIDER_SQL_KIND_HS)
+  ) {
+    DBUG_PRINT("info",("spider add set for DU SPIDER_SQL_KIND_HS"));
+    size_t roop_count;
+    Field *field;
+    hs_adding_keys = FALSE;
+    for (roop_count = 0; roop_count < spider->hs_pushed_ret_fields_num;
+      roop_count++)
+    {
+      Field *top_table_field =
+        spider->get_top_table_field(spider->hs_pushed_ret_fields[roop_count]);
+      if (!(field = spider->field_exchange(top_table_field)))
+        continue;
+      if (top_table_field->is_null())
+      {
+        hs_upds.push_back(spider_null_string_ref);
+      } else {
+        if (spider_db_handlersocket_utility.
+          append_column_value(spider, NULL, top_table_field, NULL,
+            share->access_charset))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+    }
+  }
+  DBUG_RETURN(0);
+}
+#endif
+
+int spider_handlersocket_handler::append_minimum_select_without_quote(
+  spider_string *str
+) {
+  TABLE *table = spider->get_table();
+  Field **field;
+  int field_length;
+  bool appended = FALSE;
+  DBUG_ENTER("spider_handlersocket_handler::append_minimum_select_without_quote");
+  minimum_select_bitmap_create();
+  for (field = table->field; *field; field++)
+  {
+    if (minimum_select_bit_is_set((*field)->field_index))
+    {
+/*
+      spider_set_bit(minimum_select_bitmap, (*field)->field_index);
+*/
+      field_length =
+        handlersocket_share->column_name_str[(*field)->field_index].length();
+      if (str->reserve(field_length + SPIDER_SQL_COMMA_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(
+        handlersocket_share->column_name_str[(*field)->field_index].ptr(),
+        handlersocket_share->column_name_str[(*field)->field_index].length());
+      str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+      appended = TRUE;
+    }
+  }
+  if (appended)
+    str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  DBUG_RETURN(0);
+}
+
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+int spider_handlersocket_handler::append_minimum_select_by_field_idx_list(
+  spider_string *str,
+  uint32 *field_idxs,
+  size_t field_idxs_num
+) {
+  Field *field;
+  int roop_count, field_length;
+  bool appended = FALSE;
+  DBUG_ENTER("spider_handlersocket_handler::append_minimum_select_by_field_idx_list");
+  for (roop_count = 0; roop_count < (int) field_idxs_num; roop_count++)
+  {
+    field = spider->get_top_table_field(field_idxs[roop_count]);
+    if ((field = spider->field_exchange(field)))
+    {
+      field_length =
+        handlersocket_share->column_name_str[field->field_index].length();
+      if (str->reserve(field_length + SPIDER_SQL_COMMA_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(
+        handlersocket_share->column_name_str[field->field_index].ptr(),
+        handlersocket_share->column_name_str[field->field_index].length());
+      str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+      appended = TRUE;
+    }
+  }
+  if (appended)
+    str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_dup_update_pushdown_part(
+  const char *alias,
+  uint alias_length
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_dup_update_pushdown_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_update_columns_part(
+  const char *alias,
+  uint alias_length
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_update_columns_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::check_update_columns_part()
+{
+  DBUG_ENTER("spider_handlersocket_handler::check_update_columns_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+#endif
+
+int spider_handlersocket_handler::append_select_part(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_select_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_table_select_part(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_table_select_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_key_select_part(
+  ulong sql_type,
+  uint idx
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_key_select_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_minimum_select_part(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_minimum_select_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_hint_after_table_part(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_hint_after_table_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+void spider_handlersocket_handler::set_where_pos(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::set_where_pos");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_VOID_RETURN;
+}
+
+void spider_handlersocket_handler::set_where_to_pos(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::set_where_to_pos");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_VOID_RETURN;
+}
+
+int spider_handlersocket_handler::check_item_type(
+  Item *item
+) {
+  DBUG_ENTER("spider_handlersocket_handler::check_item_type");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_values_connector_part(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_values_connector_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_values_terminator_part(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_values_terminator_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_union_table_connector_part(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_union_table_connector_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_union_table_terminator_part(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_union_table_terminator_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_key_column_values_part(
+  const key_range *start_key,
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_key_column_values_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_key_column_values_with_name_part(
+  const key_range *start_key,
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_key_column_values_with_name_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_key_where_part(
+  const key_range *start_key,
+  const key_range *end_key,
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  bool set_order;
+  DBUG_ENTER("spider_handlersocket_handler::append_key_where_part");
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_HS:
+    case SPIDER_SQL_TYPE_INSERT_HS:
+    case SPIDER_SQL_TYPE_UPDATE_HS:
+    case SPIDER_SQL_TYPE_DELETE_HS:
+      str = &hs_sql;
+      str->length(0);
+      hs_adding_keys = TRUE;
+      set_order = FALSE;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_key_where(str, NULL, NULL, start_key, end_key,
+    sql_type, set_order);
+  DBUG_RETURN(error_num);
+}
+
+int spider_handlersocket_handler::append_key_where(
+  spider_string *str,
+  spider_string *str_part,
+  spider_string *str_part2,
+  const key_range *start_key,
+  const key_range *end_key,
+  ulong sql_type,
+  bool set_order
+) {
+  int error_num;
+  DBUG_ENTER("spider_handlersocket_handler::append_key_where");
+  error_num = spider_db_append_key_where_internal(str, str_part, str_part2,
+    start_key, end_key, spider, set_order, sql_type,
+    spider_dbton_handlersocket.dbton_id);
+  DBUG_RETURN(error_num);
+}
+
+int spider_handlersocket_handler::append_is_null_part(
+  ulong sql_type,
+  KEY_PART_INFO *key_part,
+  const key_range *key,
+  const uchar **ptr,
+  bool key_eq,
+  bool tgt_final
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_handlersocket_handler::append_is_null_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_HS:
+    case SPIDER_SQL_TYPE_INSERT_HS:
+    case SPIDER_SQL_TYPE_UPDATE_HS:
+    case SPIDER_SQL_TYPE_DELETE_HS:
+      str = &hs_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_is_null(sql_type, str, NULL, NULL, key_part, key, ptr,
+    key_eq, tgt_final);
+  DBUG_RETURN(error_num);
+}
+
+int spider_handlersocket_handler::append_is_null(
+  ulong sql_type,
+  spider_string *str,
+  spider_string *str_part,
+  spider_string *str_part2,
+  KEY_PART_INFO *key_part,
+  const key_range *key,
+  const uchar **ptr,
+  bool key_eq,
+  bool tgt_final
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_is_null");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (key_part->null_bit)
+  {
+    if (*(*ptr)++)
+    {
+      hs_keys.push_back(spider_null_string_ref);
+      DBUG_RETURN(-1);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_where_terminator_part(
+  ulong sql_type,
+  bool set_order,
+  int key_count
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_where_terminator_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_match_where_part(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_match_where_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_condition_part(
+  const char *alias,
+  uint alias_length,
+  ulong sql_type,
+  bool test_flg
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_condition_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_match_select_part(
+  ulong sql_type,
+  const char *alias,
+  uint alias_length
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_match_select_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+int spider_handlersocket_handler::append_sum_select_part(
+  ulong sql_type,
+  const char *alias,
+  uint alias_length
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_sum_select_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+#endif
+
+void spider_handlersocket_handler::set_order_pos(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::set_order_pos");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_VOID_RETURN;
+}
+
+void spider_handlersocket_handler::set_order_to_pos(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::set_order_to_pos");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_VOID_RETURN;
+}
+
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+int spider_handlersocket_handler::append_group_by_part(
+  const char *alias,
+  uint alias_length,
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_group_by_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+#endif
+
+int spider_handlersocket_handler::append_key_order_for_merge_with_alias_part(
+  const char *alias,
+  uint alias_length,
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_key_order_for_merge_with_alias_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_key_order_for_direct_order_limit_with_alias_part(
+  const char *alias,
+  uint alias_length,
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_key_order_for_direct_order_limit_with_alias_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_key_order_with_alias_part(
+  const char *alias,
+  uint alias_length,
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_key_order_with_alias_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_limit_part(
+  longlong offset,
+  longlong limit,
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_limit_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info", ("spider offset=%lld", offset));
+  DBUG_PRINT("info", ("spider limit=%lld", limit));
+  hs_skip = (int) offset;
+  hs_limit = (int) limit;
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::reappend_limit_part(
+  longlong offset,
+  longlong limit,
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::reappend_limit_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_select_lock_part(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_select_lock_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_union_all_start_part(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_union_all_start_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_union_all_part(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_union_all_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_union_all_end_part(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_union_all_end_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_multi_range_cnt_part(
+  ulong sql_type,
+  uint multi_range_cnt,
+  bool with_comma
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_multi_range_cnt_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_multi_range_cnt_with_name_part(
+  ulong sql_type,
+  uint multi_range_cnt
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_multi_range_cnt_with_name_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_open_handler_part(
+  ulong sql_type,
+  uint handler_id,
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_handlersocket_handler::append_open_handler_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_OTHER_HS:
+      str = &hs_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_open_handler(str, handler_id, conn, link_idx);
+  DBUG_RETURN(error_num);
+}
+
+int spider_handlersocket_handler::append_open_handler(
+  spider_string *str,
+  uint handler_id,
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  int error_num;
+  DBUG_ENTER("spider_handlersocket_handler::append_open_handler");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (
+    str->length() == 0 &&
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+    (
+      (
+        (
+          spider->sql_command == SQLCOM_HS_INSERT ||
+          spider->hs_pushed_ret_fields_num == MAX_FIELDS
+        ) &&
+#endif
+        (error_num = append_minimum_select_without_quote(str))
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+      ) ||
+      (
+        (
+          spider->sql_command != SQLCOM_HS_INSERT &&
+          spider->hs_pushed_ret_fields_num < MAX_FIELDS
+        ) &&
+        (error_num = append_minimum_select_by_field_idx_list(str,
+          spider->hs_pushed_ret_fields, spider->hs_pushed_ret_fields_num))
+      )
+    )
+#endif
+  ) {
+    DBUG_RETURN(error_num);
+  }
+
+  TABLE *table = spider->get_table();
+  SPIDER_SHARE *share = spider->share;
+  DBUG_PRINT("info",("spider field list=%s", str->c_ptr_safe()));
+  if (!spider_bit_is_set(spider->db_request_phase, link_idx))
+  {
+    spider_set_bit(spider->db_request_phase, link_idx);
+    ++spider->db_request_id[link_idx];
+  }
+  st_spider_db_request_key request_key;
+  request_key.spider_thread_id = spider->trx->spider_thread_id;
+  request_key.query_id = spider->trx->thd->query_id;
+  request_key.handler = spider;
+  request_key.request_id = spider->db_request_id[link_idx];
+  request_key.next = NULL;
+  conn->db_conn->append_open_handler(
+    handler_id,
+    share->tgt_dbs[spider->conn_link_idx[link_idx]],
+    share->tgt_table_names[spider->conn_link_idx[link_idx]],
+    spider->active_index < MAX_KEY ?
+      table->key_info[spider->active_index].name :
+      "0",
+    str->c_ptr_safe(),
+    &request_key
+  );
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_close_handler_part(
+  ulong sql_type,
+  int link_idx
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_close_handler_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_insert_terminator_part(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_insert_terminator_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_insert_values_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mysql_handler::append_insert_values_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_INSERT_HS:
+      str = &hs_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_insert_values(str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_handlersocket_handler::append_insert_values(
+  spider_string *str
+) {
+  SPIDER_SHARE *share = spider->share;
+  TABLE *table = spider->get_table();
+  Field **field;
+  DBUG_ENTER("spider_mysql_handler::append_insert_values");
+  DBUG_PRINT("info",("spider this=%p", this));
+  hs_adding_keys = FALSE;
+  for (field = table->field; *field; field++)
+  {
+    DBUG_PRINT("info",("spider field_index=%u", (*field)->field_index));
+    if (
+      bitmap_is_set(table->write_set, (*field)->field_index) ||
+      bitmap_is_set(table->read_set, (*field)->field_index)
+    ) {
+#ifndef DBUG_OFF
+      my_bitmap_map *tmp_map =
+        dbug_tmp_use_all_columns(table, table->read_set);
+#endif
+      DBUG_PRINT("info",("spider is_null()=%s",
+        (*field)->is_null() ? "TRUE" : "FALSE"));
+      DBUG_PRINT("info",("spider table->next_number_field=%p",
+        table->next_number_field));
+      DBUG_PRINT("info",("spider *field=%p", *field));
+      DBUG_PRINT("info",("spider force_auto_increment=%s",
+        (table->next_number_field && spider->force_auto_increment) ?
+        "TRUE" : "FALSE"));
+      if (
+        (*field)->is_null() ||
+        (
+          table->next_number_field == *field &&
+          !table->auto_increment_field_not_null &&
+          !spider->force_auto_increment
+        )
+      ) {
+        hs_upds.push_back(spider_null_string_ref);
+      } else {
+        spider_db_handlersocket_utility.
+          append_column_value(spider, NULL, *field, NULL,
+            share->access_charset);
+      }
+#ifndef DBUG_OFF
+      dbug_tmp_restore_column_map(table->read_set, tmp_map);
+#endif
+    }
+  }
+  int error_num;
+  int roop_count2;
+  for (
+    roop_count2 = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, -1, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY);
+    roop_count2 < (int) share->link_count;
+    roop_count2 = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, roop_count2, share->link_count,
+      SPIDER_LINK_STATUS_RECOVERY)
+  ) {
+    if (spider->sql_kind[roop_count2] == SPIDER_SQL_KIND_HS)
+    {
+      SPIDER_CONN *conn = spider->hs_w_conns[roop_count2];
+      if (conn->dbton_id == spider_dbton_handlersocket.dbton_id)
+      {
+        if ((error_num = request_buf_insert(roop_count2)))
+          DBUG_RETURN(error_num);
+#ifdef HA_CAN_BULK_ACCESS
+        if (spider->is_bulk_access_clone)
+        {
+          spider->connection_ids[roop_count2] = conn->connection_id;
+          spider_trx_add_bulk_access_conn(spider->trx, conn);
+        }
+#endif
+      }
+    }
+  }
+  hs_upds.clear();
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_into_part(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_into_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+void spider_handlersocket_handler::set_insert_to_pos(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::set_insert_to_pos");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_VOID_RETURN;
+}
+
+int spider_handlersocket_handler::append_from_part(
+  ulong sql_type,
+  int link_idx
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_from_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_delete_all_rows_part(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_delete_all_rows_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_explain_select_part(
+  const key_range *start_key,
+  const key_range *end_key,
+  ulong sql_type,
+  int link_idx
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_explain_select_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::is_sole_projection_field(
+  uint16 field_index
+) {
+  DBUG_ENTER("spider_handlersocket_handler::is_sole_projection_field");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+bool spider_handlersocket_handler::is_bulk_insert_exec_period(
+  bool bulk_end
+) {
+  DBUG_ENTER("spider_handlersocket_handler::is_bulk_insert_exec_period");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!spider->bulk_insert || bulk_end)
+    DBUG_RETURN(TRUE);
+  DBUG_RETURN(FALSE);
+}
+
+bool spider_handlersocket_handler::sql_is_filled_up(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::sql_is_filled_up");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(FALSE);
+}
+
+bool spider_handlersocket_handler::sql_is_empty(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::sql_is_empty");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(FALSE);
+}
+
+bool spider_handlersocket_handler::support_multi_split_read()
+{
+  DBUG_ENTER("spider_handlersocket_handler::support_multi_split_read");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(FALSE);
+}
+
+bool spider_handlersocket_handler::support_bulk_update()
+{
+  DBUG_ENTER("spider_handlersocket_handler::support_bulk_update");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(FALSE);
+}
+
+int spider_handlersocket_handler::bulk_tmp_table_insert()
+{
+  DBUG_ENTER("spider_handlersocket_handler::bulk_tmp_table_insert");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::bulk_tmp_table_insert(
+  int link_idx
+) {
+  DBUG_ENTER("spider_handlersocket_handler::bulk_tmp_table_insert");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::bulk_tmp_table_end_bulk_insert()
+{
+  DBUG_ENTER("spider_handlersocket_handler::bulk_tmp_table_end_bulk_insert");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::bulk_tmp_table_rnd_init()
+{
+  DBUG_ENTER("spider_handlersocket_handler::bulk_tmp_table_rnd_init");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::bulk_tmp_table_rnd_next()
+{
+  DBUG_ENTER("spider_handlersocket_handler::bulk_tmp_table_rnd_next");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::bulk_tmp_table_rnd_end()
+{
+  DBUG_ENTER("spider_handlersocket_handler::bulk_tmp_table_rnd_end");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+bool spider_handlersocket_handler::need_copy_for_update(
+    int link_idx
+) {
+  DBUG_ENTER("spider_handlersocket_handler::need_copy_for_update");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(TRUE);
+}
+
+bool spider_handlersocket_handler::bulk_tmp_table_created()
+{
+  DBUG_ENTER("spider_handlersocket_handler::bulk_tmp_table_created");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(FALSE);
+}
+
+int spider_handlersocket_handler::mk_bulk_tmp_table_and_bulk_start()
+{
+  DBUG_ENTER("spider_handlersocket_handler::mk_bulk_tmp_table_and_bulk_start");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+void spider_handlersocket_handler::rm_bulk_tmp_table()
+{
+  DBUG_ENTER("spider_handlersocket_handler::rm_bulk_tmp_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_VOID_RETURN;
+}
+
+int spider_handlersocket_handler::insert_lock_tables_list(
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  DBUG_ENTER("spider_handlersocket_handler::insert_lock_tables_list");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_lock_tables_list(
+  SPIDER_CONN *conn,
+  int link_idx,
+  int *appended
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_lock_tables_list");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::realloc_sql(
+  ulong *realloced
+) {
+  THD *thd = spider->trx->thd;
+  st_spider_share *share = spider->share;
+  int init_sql_alloc_size =
+    spider_param_init_sql_alloc_size(thd, share->init_sql_alloc_size);
+  DBUG_ENTER("spider_handlersocket_handler::realloc_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if ((int) hs_sql.alloced_length() > init_sql_alloc_size * 2)
+  {
+    hs_sql.free();
+    if (hs_sql.real_alloc(init_sql_alloc_size))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    *realloced |= SPIDER_SQL_TYPE_FULL_HS;
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::reset_sql(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::reset_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql_type & SPIDER_SQL_TYPE_FULL_HS)
+  {
+    hs_sql.length(0);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::reset_keys(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::reset_keys");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql_type & SPIDER_SQL_TYPE_FULL_HS)
+  {
+    hs_keys.clear();
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::reset_upds(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::reset_upds");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql_type & SPIDER_SQL_TYPE_FULL_HS)
+  {
+    hs_upds.clear();
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::reset_strs(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::reset_strs");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql_type & SPIDER_SQL_TYPE_FULL_HS)
+  {
+    hs_strs.clear();
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::reset_strs_pos(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::reset_strs_pos");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql_type & SPIDER_SQL_TYPE_FULL_HS)
+  {
+    hs_strs_pos = 0;
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::push_back_upds(
+  SPIDER_HS_STRING_REF &info
+) {
+  int error_num;
+  DBUG_ENTER("spider_handlersocket_handler::push_back_upds");
+  DBUG_PRINT("info",("spider this=%p", this));
+  error_num = hs_upds.push_back(info);
+  DBUG_RETURN(error_num);
+}
+
+int spider_handlersocket_handler::request_buf_find(
+  int link_idx
+) {
+  int error_num;
+  spider_string *hs_str;
+  SPIDER_CONN *conn;
+  uint handler_id;
+  DBUG_ENTER("spider_handlersocket_handler::request_buf_find");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!(hs_str = hs_strs.add(&hs_strs_pos, hs_sql.ptr(), hs_sql.length())))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  if (spider->conn_kind[link_idx] == SPIDER_CONN_KIND_HS_READ)
+  {
+    conn = spider->hs_r_conns[link_idx];
+    handler_id = spider->r_handler_id[link_idx];
+  } else {
+    conn = spider->hs_w_conns[link_idx];
+    handler_id = spider->w_handler_id[link_idx];
+  }
+  if ((error_num = spider_db_conn_queue_action(conn)))
+    DBUG_RETURN(error_num);
+  if (!spider_bit_is_set(spider->db_request_phase, link_idx))
+  {
+    spider_set_bit(spider->db_request_phase, link_idx);
+    ++spider->db_request_id[link_idx];
+  }
+  st_spider_db_request_key request_key;
+  request_key.spider_thread_id = spider->trx->spider_thread_id;
+  request_key.query_id = spider->trx->thd->query_id;
+  request_key.handler = spider;
+  request_key.request_id = spider->db_request_id[link_idx];
+  request_key.next = NULL;
+  conn->db_conn->append_select(
+    handler_id, hs_str, &hs_keys,
+    hs_limit, hs_skip, &request_key);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::request_buf_insert(
+  int link_idx
+) {
+  int error_num;
+  DBUG_ENTER("spider_handlersocket_handler::request_buf_insert");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if ((error_num = spider_db_conn_queue_action(spider->hs_w_conns[link_idx])))
+    DBUG_RETURN(error_num);
+  if (!spider_bit_is_set(spider->db_request_phase, link_idx))
+  {
+    spider_set_bit(spider->db_request_phase, link_idx);
+    ++spider->db_request_id[link_idx];
+  }
+  st_spider_db_request_key request_key;
+  request_key.spider_thread_id = spider->trx->spider_thread_id;
+  request_key.query_id = spider->trx->thd->query_id;
+  request_key.handler = spider;
+  request_key.request_id = spider->db_request_id[link_idx];
+  request_key.next = NULL;
+  spider->hs_w_conns[link_idx]->db_conn->append_insert(
+    spider->w_handler_id[link_idx], &hs_upds, &request_key);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::request_buf_update(
+  int link_idx
+) {
+  int error_num;
+  spider_string *hs_str;
+  DBUG_ENTER("spider_handlersocket_handler::request_buf_update");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!(hs_str = hs_strs.add(&hs_strs_pos, hs_sql.ptr(), hs_sql.length())))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  if ((error_num = spider_db_conn_queue_action(spider->hs_w_conns[link_idx])))
+    DBUG_RETURN(error_num);
+  if (!spider_bit_is_set(spider->db_request_phase, link_idx))
+  {
+    spider_set_bit(spider->db_request_phase, link_idx);
+    ++spider->db_request_id[link_idx];
+  }
+  st_spider_db_request_key request_key;
+  request_key.spider_thread_id = spider->trx->spider_thread_id;
+  request_key.query_id = spider->trx->thd->query_id;
+  request_key.handler = spider;
+  request_key.request_id = spider->db_request_id[link_idx];
+  request_key.next = NULL;
+  spider->hs_w_conns[link_idx]->db_conn->append_update(
+    spider->w_handler_id[link_idx], hs_str, &hs_keys, &hs_upds,
+    hs_limit, hs_skip,
+    spider->hs_increment, spider->hs_decrement, &request_key
+  );
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::request_buf_delete(
+  int link_idx
+) {
+  int error_num;
+  spider_string *hs_str;
+  DBUG_ENTER("spider_handlersocket_handler::request_buf_delete");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!(hs_str = hs_strs.add(&hs_strs_pos, hs_sql.ptr(), hs_sql.length())))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  if ((error_num = spider_db_conn_queue_action(spider->hs_w_conns[link_idx])))
+    DBUG_RETURN(error_num);
+  if (!spider_bit_is_set(spider->db_request_phase, link_idx))
+  {
+    spider_set_bit(spider->db_request_phase, link_idx);
+    ++spider->db_request_id[link_idx];
+  }
+  st_spider_db_request_key request_key;
+  request_key.spider_thread_id = spider->trx->spider_thread_id;
+  request_key.query_id = spider->trx->thd->query_id;
+  request_key.handler = spider;
+  request_key.request_id = spider->db_request_id[link_idx];
+  request_key.next = NULL;
+  spider->hs_w_conns[link_idx]->db_conn->append_delete(
+    spider->w_handler_id[link_idx], hs_str, &hs_keys,
+    hs_limit, hs_skip, &request_key);
+  DBUG_RETURN(0);
+}
+
+bool spider_handlersocket_handler::need_lock_before_set_sql_for_exec(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::need_lock_before_set_sql_for_exec");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(TRUE);
+}
+
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+int spider_handlersocket_handler::set_sql_for_exec(
+  ulong sql_type,
+  int link_idx,
+  SPIDER_LINK_IDX_CHAIN *link_idx_chain
+) {
+  DBUG_ENTER("spider_handlersocket_handler::set_sql_for_exec");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+#endif
+
+int spider_handlersocket_handler::set_sql_for_exec(
+  ulong sql_type,
+  int link_idx
+) {
+  DBUG_ENTER("spider_handlersocket_handler::set_sql_for_exec");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql_type & SPIDER_SQL_TYPE_SELECT_HS)
+  {
+    DBUG_RETURN(request_buf_find(link_idx));
+  }
+  if (sql_type & SPIDER_SQL_TYPE_INSERT_HS)
+  {
+    DBUG_RETURN(request_buf_insert(link_idx));
+  }
+  if (sql_type & SPIDER_SQL_TYPE_UPDATE_HS)
+  {
+    DBUG_RETURN(request_buf_update(link_idx));
+  }
+  if (sql_type & SPIDER_SQL_TYPE_DELETE_HS)
+  {
+    DBUG_RETURN(request_buf_delete(link_idx));
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::set_sql_for_exec(
+  spider_db_copy_table *tgt_ct,
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::set_sql_for_exec");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::execute_sql(
+  ulong sql_type,
+  SPIDER_CONN *conn,
+  int quick_mode,
+  int *need_mon
+) {
+  DBUG_ENTER("spider_handlersocket_handler::execute_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!(sql_type & SPIDER_SQL_TYPE_FULL_HS))
+  {
+    /* nothing to do */
+    DBUG_RETURN(0);
+  }
+  DBUG_RETURN(spider_db_query(
+    conn,
+    NULL,
+    0,
+    quick_mode,
+    need_mon
+  ));
+}
+
+int spider_handlersocket_handler::reset()
+{
+  DBUG_ENTER("spider_handlersocket_handler::reset");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::sts_mode_exchange(
+  int sts_mode
+) {
+  DBUG_ENTER("spider_handlersocket_handler::sts_mode_exchange");
+  DBUG_PRINT("info",("spider sts_mode=%d", sts_mode));
+  DBUG_RETURN(sts_mode);
+}
+
+int spider_handlersocket_handler::show_table_status(
+  int link_idx,
+  int sts_mode,
+  uint flag
+) {
+  spider_db_handlersocket_result res(NULL);
+  SPIDER_SHARE *share = spider->share;
+  ulonglong auto_increment_value = 0;
+  DBUG_ENTER("spider_handlersocket_show_table_status");
+  res.fetch_table_status(
+    sts_mode,
+    share->stat
+  );
+  if (auto_increment_value > share->lgtm_tblhnd_share->auto_increment_value)
+  {
+    share->lgtm_tblhnd_share->auto_increment_value = auto_increment_value;
+    DBUG_PRINT("info",("spider auto_increment_value=%llu",
+      share->lgtm_tblhnd_share->auto_increment_value));
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::crd_mode_exchange(
+  int crd_mode
+) {
+  DBUG_ENTER("spider_handlersocket_handler::crd_mode_exchange");
+  DBUG_PRINT("info",("spider crd_mode=%d", crd_mode));
+  DBUG_RETURN(crd_mode);
+}
+
+int spider_handlersocket_handler::show_index(
+  int link_idx,
+  int crd_mode
+) {
+  DBUG_ENTER("spider_handlersocket_handler::show_index");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::show_records(
+  int link_idx
+) {
+  DBUG_ENTER("spider_handlersocket_handler::show_records");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::show_last_insert_id(
+  int link_idx,
+  ulonglong &last_insert_id
+) {
+  DBUG_ENTER("spider_handlersocket_handler::show_last_insert_id");
+  last_insert_id = 0;
+  DBUG_RETURN(0);
+}
+
+ha_rows spider_handlersocket_handler::explain_select(
+  key_range *start_key,
+  key_range *end_key,
+  int link_idx
+) {
+  DBUG_ENTER("spider_handlersocket_handler::explain_select");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::lock_tables(
+  int link_idx
+) {
+  DBUG_ENTER("spider_handlersocket_handler::lock_tables");
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::unlock_tables(
+  int link_idx
+) {
+  DBUG_ENTER("spider_handlersocket_handler::unlock_tables");
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::disable_keys(
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  DBUG_ENTER("spider_handlersocket_handler::disable_keys");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::enable_keys(
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  DBUG_ENTER("spider_handlersocket_handler::enable_keys");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::check_table(
+  SPIDER_CONN *conn,
+  int link_idx,
+  HA_CHECK_OPT* check_opt
+) {
+  DBUG_ENTER("spider_handlersocket_handler::check_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::repair_table(
+  SPIDER_CONN *conn,
+  int link_idx,
+  HA_CHECK_OPT* check_opt
+) {
+  DBUG_ENTER("spider_handlersocket_handler::repair_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::analyze_table(
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  DBUG_ENTER("spider_handlersocket_handler::analyze_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::optimize_table(
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  DBUG_ENTER("spider_handlersocket_handler::optimize_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::flush_tables(
+  SPIDER_CONN *conn,
+  int link_idx,
+  bool lock
+) {
+  DBUG_ENTER("spider_handlersocket_handler::flush_tables");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::flush_logs(
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  DBUG_ENTER("spider_handlersocket_handler::flush_logs");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::insert_opened_handler(
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  spider_db_handlersocket *db_conn = (spider_db_handlersocket *) conn->db_conn;
+  SPIDER_LINK_FOR_HASH *tmp_link_for_hash = &link_for_hash[link_idx];
+  DBUG_ASSERT(tmp_link_for_hash->spider == spider);
+  DBUG_ASSERT(tmp_link_for_hash->link_idx == link_idx);
+  uint old_elements = db_conn->handler_open_array.max_element;
+  DBUG_ENTER("spider_handlersocket_handler::insert_opened_handler");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (insert_dynamic(&db_conn->handler_open_array,
+    (uchar*) &tmp_link_for_hash))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  if (db_conn->handler_open_array.max_element > old_elements)
+  {
+    spider_alloc_calc_mem(spider_current_trx,
+      db_conn->handler_open_array,
+      (db_conn->handler_open_array.max_element - old_elements) *
+      db_conn->handler_open_array.size_of_element);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::delete_opened_handler(
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  spider_db_handlersocket *db_conn = (spider_db_handlersocket *) conn->db_conn;
+  uint roop_count, elements = db_conn->handler_open_array.elements;
+  SPIDER_LINK_FOR_HASH *tmp_link_for_hash;
+  DBUG_ENTER("spider_handlersocket_handler::delete_opened_handler");
+  DBUG_PRINT("info",("spider this=%p", this));
+  for (roop_count = 0; roop_count < elements; roop_count++)
+  {
+    get_dynamic(&db_conn->handler_open_array, (uchar *) &tmp_link_for_hash,
+      roop_count);
+    if (tmp_link_for_hash == &link_for_hash[link_idx])
+    {
+      delete_dynamic_element(&db_conn->handler_open_array, roop_count);
+      break;
+    }
+  }
+  DBUG_ASSERT(roop_count < elements);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::sync_from_clone_source(
+  spider_db_handler *dbton_hdl
+) {
+  spider_handlersocket_handler *hs_hdl =
+    (spider_handlersocket_handler *) dbton_hdl;
+  DBUG_ENTER("spider_handlersocket_handler::sync_from_clone_source");
+  DBUG_PRINT("info",("spider this=%p", this));
+  hs_strs_pos = hs_hdl->hs_strs_pos;
+  DBUG_RETURN(0);
+}
+
+bool spider_handlersocket_handler::support_use_handler(
+  int use_handler
+) {
+  DBUG_ENTER("spider_handlersocket_handler::support_use_handler");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(TRUE);
+}
+
+void spider_handlersocket_handler::minimum_select_bitmap_create()
+{
+  TABLE *table = spider->get_table();
+  Field **field_p;
+  DBUG_ENTER("spider_handlersocket_handler::minimum_select_bitmap_create");
+  memset(minimum_select_bitmap, 0, no_bytes_in_map(table->read_set));
+  if (
+    spider->use_index_merge ||
+#ifdef HA_CAN_BULK_ACCESS
+    (spider->is_clone && !spider->is_bulk_access_clone)
+#else
+    spider->is_clone
+#endif
+  ) {
+    /* need preparing for cmp_ref */
+    TABLE_SHARE *table_share = table->s;
+    if (
+      table_share->primary_key == MAX_KEY
+    ) {
+      /* need all columns */
+      memset(minimum_select_bitmap, 0xFF, no_bytes_in_map(table->read_set));
+      DBUG_VOID_RETURN;
+    } else {
+      /* need primary key columns */
+      uint roop_count;
+      KEY *key_info;
+      KEY_PART_INFO *key_part;
+      Field *field;
+      key_info = &table_share->key_info[table_share->primary_key];
+      key_part = key_info->key_part;
+      for (roop_count = 0;
+        roop_count < spider_user_defined_key_parts(key_info);
+        roop_count++)
+      {
+        field = key_part[roop_count].field;
+        spider_set_bit(minimum_select_bitmap, field->field_index);
+      }
+    }
+  }
+  for (field_p = table->field; *field_p; field_p++)
+  {
+    uint field_index = (*field_p)->field_index;
+    if (
+      spider_bit_is_set(spider->searched_bitmap, field_index) ||
+      bitmap_is_set(table->read_set, field_index) ||
+      bitmap_is_set(table->write_set, field_index)
+    ) {
+      spider_set_bit(minimum_select_bitmap, field_index);
+    }
+  }
+  DBUG_VOID_RETURN;
+}
+
+bool spider_handlersocket_handler::minimum_select_bit_is_set(
+  uint field_index
+) {
+  DBUG_ENTER("spider_handlersocket_handler::minimum_select_bit_is_set");
+  DBUG_PRINT("info",("spider field_index=%u", field_index));
+  DBUG_PRINT("info",("spider minimum_select_bitmap=%s",
+    spider_bit_is_set(minimum_select_bitmap, field_index) ?
+      "TRUE" : "FALSE"));
+  DBUG_RETURN(spider_bit_is_set(minimum_select_bitmap, field_index));
+}
+
+void spider_handlersocket_handler::copy_minimum_select_bitmap(
+  uchar *bitmap
+) {
+  int roop_count;
+  TABLE *table = spider->get_table();
+  DBUG_ENTER("spider_handlersocket_handler::copy_minimum_select_bitmap");
+  for (roop_count = 0;
+    roop_count < (int) ((table->s->fields + 7) / 8);
+    roop_count++)
+  {
+    bitmap[roop_count] =
+      minimum_select_bitmap[roop_count];
+    DBUG_PRINT("info",("spider roop_count=%d", roop_count));
+    DBUG_PRINT("info",("spider bitmap=%d",
+      bitmap[roop_count]));
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_handlersocket_handler::init_union_table_name_pos()
+{
+  DBUG_ENTER("spider_handlersocket_handler::init_union_table_name_pos");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::set_union_table_name_pos()
+{
+  DBUG_ENTER("spider_handlersocket_handler::set_union_table_name_pos");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::reset_union_table_name(
+  spider_string *str,
+  int link_idx,
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::reset_union_table_name");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+int spider_handlersocket_handler::append_list_item_select_part(
+  List<Item> *select,
+  const char *alias,
+  uint alias_length,
+  bool use_fields,
+  spider_fields *fields,
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_list_item_select_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_from_and_tables_part(
+  spider_fields *fields,
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_from_and_tables_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::reappend_tables_part(
+  spider_fields *fields,
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::reappend_tables_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_where_part(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_where_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_having_part(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_having_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_item_type_part(
+  Item *item,
+  const char *alias,
+  uint alias_length,
+  bool use_fields,
+  spider_fields *fields,
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_item_type_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_group_by_part(
+  ORDER *order,
+  const char *alias,
+  uint alias_length,
+  bool use_fields,
+  spider_fields *fields,
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_group_by_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_handlersocket_handler::append_order_by_part(
+  ORDER *order,
+  const char *alias,
+  uint alias_length,
+  bool use_fields,
+  spider_fields *fields,
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_handlersocket_handler::append_order_by_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+#endif
+#endif
diff --git a/storage/spider/spd_db_handlersocket.h b/storage/spider/spd_db_handlersocket.h
new file mode 100644
index 00000000..f7a454b6
--- /dev/null
+++ b/storage/spider/spd_db_handlersocket.h
@@ -0,0 +1,1091 @@
+/* Copyright (C) 2012-2018 Kentoku Shiba
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+#define SPIDER_HS_CONN dena::hstcpcli_ptr
+#define SPIDER_HS_CONN_CREATE dena::hstcpcli_i::create
+#define SPIDER_HS_RESULT dena::hstresult
+#define SPIDER_HS_SOCKARGS dena::socket_args
+
+class spider_db_handlersocket_util: public spider_db_util
+{
+public:
+  spider_db_handlersocket_util();
+  ~spider_db_handlersocket_util();
+  int append_name(
+    spider_string *str,
+    const char *name,
+    uint name_length
+  );
+  int append_name_with_charset(
+    spider_string *str,
+    const char *name,
+    uint name_length,
+    CHARSET_INFO *name_charset
+  );
+  int append_escaped_name(
+    spider_string *str,
+    const char *name,
+    uint name_length
+  );
+  int append_escaped_name_with_charset(
+    spider_string *str,
+    const char *name,
+    uint name_length,
+    CHARSET_INFO *name_charset
+  );
+  bool is_name_quote(
+    const char head_code
+  );
+  int append_escaped_name_quote(
+    spider_string *str
+  );
+  int append_column_value(
+    ha_spider *spider,
+    spider_string *str,
+    Field *field,
+    const uchar *new_ptr,
+    CHARSET_INFO *access_charset
+  );
+  int append_trx_isolation(
+    spider_string *str,
+    int trx_isolation
+  );
+  int append_autocommit(
+    spider_string *str,
+    bool autocommit
+  );
+  int append_sql_log_off(
+    spider_string *str,
+    bool sql_log_off
+  );
+  int append_wait_timeout(
+    spider_string *str,
+    int wait_timeout
+  );
+  int append_sql_mode(
+    spider_string *str,
+    sql_mode_t sql_mode
+  );
+  int append_time_zone(
+    spider_string *str,
+    Time_zone *time_zone
+  );
+  int append_start_transaction(
+    spider_string *str
+  );
+  int append_xa_start(
+    spider_string *str,
+    XID *xid
+  );
+  int append_lock_table_head(
+    spider_string *str
+  );
+  int append_lock_table_body(
+    spider_string *str,
+    const char *db_name,
+    uint db_name_length,
+    CHARSET_INFO *db_name_charset,
+    const char *table_name,
+    uint table_name_length,
+    CHARSET_INFO *table_name_charset,
+    int lock_type
+  );
+  int append_lock_table_tail(
+    spider_string *str
+  );
+  int append_unlock_table(
+    spider_string *str
+  );
+  int open_item_func(
+    Item_func *item_func,
+    ha_spider *spider,
+    spider_string *str,
+    const char *alias,
+    uint alias_length,
+    bool use_fields,
+    spider_fields *fields
+  );
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  int open_item_sum_func(
+    Item_sum *item_sum,
+    ha_spider *spider,
+    spider_string *str,
+    const char *alias,
+    uint alias_length,
+    bool use_fields,
+    spider_fields *fields
+  );
+#endif
+  int append_escaped_util(
+    spider_string *to,
+    String *from
+  );
+  int append_escaped_util(
+    spider_string *to,
+    String *from
+  );
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+  int append_from_and_tables(
+    ha_spider *spider,
+    spider_fields *fields,
+    spider_string *str,
+    TABLE_LIST *table_list,
+    uint table_count
+  );
+  int reappend_tables(
+    spider_fields *fields,
+    SPIDER_LINK_IDX_CHAIN *link_idx_chain,
+    spider_string *str
+  );
+  int append_where(
+    spider_string *str
+  );
+  int append_having(
+    spider_string *str
+  );
+#endif
+};
+
+class spider_db_handlersocket_row: public spider_db_row
+{
+public:
+  SPIDER_HS_STRING_REF *hs_row;
+  SPIDER_HS_STRING_REF *hs_row_first;
+  uint                 field_count;
+  uint                 row_size;
+  bool                 cloned;
+  spider_db_handlersocket_row();
+  ~spider_db_handlersocket_row();
+  int store_to_field(
+    Field *field,
+    CHARSET_INFO *access_charset
+  );
+  int append_to_str(
+    spider_string *str
+  );
+  int append_escaped_to_str(
+    spider_string *str,
+    uint dbton_id
+  );
+  void first();
+  void next();
+  bool is_null();
+  int val_int();
+  double val_real();
+  my_decimal *val_decimal(
+    my_decimal *decimal_value,
+    CHARSET_INFO *access_charset
+  );
+  SPIDER_DB_ROW *clone();
+  int store_to_tmp_table(
+    TABLE *tmp_table,
+    spider_string *str
+  );
+  uint get_byte_size();
+};
+
+class spider_db_handlersocket_result_buffer: public spider_db_result_buffer
+{
+public:
+  SPIDER_HS_RESULT            hs_result;
+  spider_db_handlersocket_result_buffer();
+  ~spider_db_handlersocket_result_buffer();
+  void clear();
+  bool check_size(
+    longlong size
+  );
+};
+
+class spider_db_handlersocket_result: public spider_db_result
+{
+public:
+  SPIDER_HS_CONN              *hs_conn_p;
+  spider_db_handlersocket_row row;
+  SPIDER_HS_STRING_REF        hs_row;
+  uint                        field_count;
+  int                         store_error_num;
+  spider_db_handlersocket_result(SPIDER_DB_CONN *in_db_conn);
+  ~spider_db_handlersocket_result();
+  bool has_result();
+  void free_result();
+  SPIDER_DB_ROW *current_row();
+  SPIDER_DB_ROW *fetch_row();
+  SPIDER_DB_ROW *fetch_row_from_result_buffer(
+    spider_db_result_buffer *spider_res_buf
+  );
+  SPIDER_DB_ROW *fetch_row_from_tmp_table(
+    TABLE *tmp_table
+  );
+  int fetch_table_status(
+    int mode,
+    ha_statistics &stat
+  );
+  int fetch_table_records(
+    int mode,
+    ha_rows &records
+  );
+  int fetch_table_cardinality(
+    int mode,
+    TABLE *table,
+    longlong *cardinality,
+    uchar *cardinality_upd,
+    int bitmap_size
+  );
+  int fetch_table_mon_status(
+    int &status
+  );
+  longlong num_rows();
+  uint num_fields();
+  void move_to_pos(
+    longlong pos
+  );
+  int get_errno();
+#ifdef SPIDER_HAS_DISCOVER_TABLE_STRUCTURE
+  int fetch_columns_for_discover_table_structure(
+    spider_string *str,
+    CHARSET_INFO *access_charset
+  );
+  int fetch_index_for_discover_table_structure(
+    spider_string *str,
+    CHARSET_INFO *access_charset
+  );
+  int fetch_table_for_discover_table_structure(
+    spider_string *str,
+    SPIDER_SHARE *spider_share,
+    CHARSET_INFO *access_charset
+  );
+#endif
+};
+
+class spider_db_handlersocket: public spider_db_conn
+{
+  SPIDER_HS_CONN hs_conn;
+  int            stored_error;
+  uint           field_count;
+public:
+  DYNAMIC_ARRAY  handler_open_array;
+  bool           handler_open_array_inited;
+  uint           handler_open_array_id;
+  const char     *handler_open_array_func_name;
+  const char     *handler_open_array_file_name;
+  ulong          handler_open_array_line_no;
+  st_spider_db_request_key *request_key_req_first;
+  st_spider_db_request_key *request_key_req_last;
+  st_spider_db_request_key *request_key_snd_first;
+  st_spider_db_request_key *request_key_snd_last;
+  st_spider_db_request_key *request_key_reuse_first;
+  st_spider_db_request_key *request_key_reuse_last;
+  spider_db_handlersocket(
+    SPIDER_CONN *conn
+  );
+  ~spider_db_handlersocket();
+  int init();
+  bool is_connected();
+  void bg_connect();
+  int connect(
+    char *tgt_host,
+    char *tgt_username,
+    char *tgt_password,
+    long tgt_port,
+    char *tgt_socket,
+    char *server_name,
+    int connect_retry_count,
+    longlong connect_retry_interval
+  );
+  int ping();
+  void bg_disconnect();
+  void disconnect();
+  int set_net_timeout();
+  int exec_query(
+    const char *query,
+    uint length,
+    int quick_mode
+  );
+  int get_errno();
+  const char *get_error();
+  bool is_server_gone_error(
+    int error_num
+  );
+  bool is_dup_entry_error(
+    int error_num
+  );
+  bool is_xa_nota_error(
+    int error_num
+  );
+  spider_db_result *store_result(
+    spider_db_result_buffer **spider_res_buf,
+    st_spider_db_request_key *request_key,
+    int *error_num
+  );
+  spider_db_result *use_result(
+    ha_spider *spider,
+    st_spider_db_request_key *request_key,
+    int *error_num
+  );
+  int next_result();
+  uint affected_rows();
+  uint matched_rows();
+  bool inserted_info(
+    spider_db_handler *handler,
+    spider_copy_info *copy_info
+  );
+  ulonglong last_insert_id();
+  int set_character_set(
+    const char *csname
+  );
+  int select_db(
+    const char *dbname
+  );
+  int consistent_snapshot(
+    int *need_mon
+  );
+  bool trx_start_in_bulk_sql();
+  int start_transaction(
+    int *need_mon
+  );
+  int commit(
+    int *need_mon
+  );
+  int rollback(
+    int *need_mon
+  );
+  bool xa_start_in_bulk_sql();
+  int xa_start(
+    XID *xid,
+    int *need_mon
+  );
+  int xa_end(
+    XID *xid,
+    int *need_mon
+  );
+  int xa_prepare(
+    XID *xid,
+    int *need_mon
+  );
+  int xa_commit(
+    XID *xid,
+    int *need_mon
+  );
+  int xa_rollback(
+    XID *xid,
+    int *need_mon
+  );
+  bool set_trx_isolation_in_bulk_sql();
+  int set_trx_isolation(
+    int trx_isolation,
+    int *need_mon
+  );
+  bool set_autocommit_in_bulk_sql();
+  int set_autocommit(
+    bool autocommit,
+    int *need_mon
+  );
+  bool set_sql_log_off_in_bulk_sql();
+  int set_sql_log_off(
+    bool sql_log_off,
+    int *need_mon
+  );
+  bool set_wait_timeout_in_bulk_sql();
+  int set_wait_timeout(
+    int wait_timeout,
+    int *need_mon
+  );
+  bool set_sql_mode_in_bulk_sql();
+  int set_sql_mode(
+    sql_mode_t sql_mode,
+    int *need_mon
+  );
+  bool set_time_zone_in_bulk_sql();
+  int set_time_zone(
+    Time_zone *time_zone,
+    int *need_mon
+  );
+  int show_master_status(
+    SPIDER_TRX *trx,
+    SPIDER_SHARE *share,
+    int all_link_idx,
+    int *need_mon,
+    TABLE *table,
+    spider_string *str,
+    int mode,
+    SPIDER_DB_RESULT **res1,
+    SPIDER_DB_RESULT **res2
+  );
+  int append_sql(
+    char *sql,
+    ulong sql_length,
+    st_spider_db_request_key *request_key
+  );
+  int append_open_handler(
+    uint handler_id,
+    const char *db_name,
+    const char *table_name,
+    const char *index_name,
+    const char *sql,
+    st_spider_db_request_key *request_key
+  );
+  int append_select(
+    uint handler_id,
+    spider_string *sql,
+    SPIDER_DB_HS_STRING_REF_BUFFER *keys,
+    int limit,
+    int skip,
+    st_spider_db_request_key *request_key
+  );
+  int append_insert(
+    uint handler_id,
+    SPIDER_DB_HS_STRING_REF_BUFFER *upds,
+    st_spider_db_request_key *request_key
+  );
+  int append_update(
+    uint handler_id,
+    spider_string *sql,
+    SPIDER_DB_HS_STRING_REF_BUFFER *keys,
+    SPIDER_DB_HS_STRING_REF_BUFFER *upds,
+    int limit,
+    int skip,
+    bool increment,
+    bool decrement,
+    st_spider_db_request_key *request_key
+  );
+  int append_delete(
+    uint handler_id,
+    spider_string *sql,
+    SPIDER_DB_HS_STRING_REF_BUFFER *keys,
+    int limit,
+    int skip,
+    st_spider_db_request_key *request_key
+  );
+  void reset_request_queue();
+  size_t escape_string(
+    char *to,
+    const char *from,
+    size_t from_length
+  );
+  bool have_lock_table_list();
+  int append_lock_tables(
+    spider_string *str
+  );
+  int append_unlock_tables(
+    spider_string *str
+  );
+  uint get_lock_table_hash_count();
+  void reset_lock_table_hash();
+  uint get_opened_handler_count();
+  void reset_opened_handler();
+  void set_dup_key_idx(
+    ha_spider *spider,
+    int link_idx
+  );
+  int append_request_key(
+    st_spider_db_request_key *request_key
+  );
+  void reset_request_key_req();
+  void reset_request_key_snd();
+  void move_request_key_to_snd();
+  int check_request_key(
+    st_spider_db_request_key *request_key
+  );
+  bool cmp_request_key_to_snd(
+    st_spider_db_request_key *request_key
+  );
+};
+
+class spider_handlersocket_share: public spider_db_share
+{
+public:
+  spider_string      *table_names_str;
+  spider_string      *db_names_str;
+  spider_string      *db_table_str;
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  my_hash_value_type *db_table_str_hash_value;
+#endif
+  uint               table_nm_max_length;
+  uint               db_nm_max_length;
+  spider_string      *column_name_str;
+  bool               same_db_table_name;
+  int                first_all_link_idx;
+  spider_handlersocket_share(
+    st_spider_share *share
+  );
+  ~spider_handlersocket_share();
+  int init();
+  int append_table_name(
+    spider_string *str,
+    int all_link_idx
+  );
+  int create_table_names_str();
+  void free_table_names_str();
+  int create_column_name_str();
+  void free_column_name_str();
+  uint get_column_name_length(
+    uint field_index
+  );
+  int append_column_name(
+    spider_string *str,
+    uint field_index
+  );
+  int append_column_name_with_alias(
+    spider_string *str,
+    uint field_index,
+    const char *alias,
+    uint alias_length
+  );
+  bool need_change_db_table_name();
+#ifdef SPIDER_HAS_DISCOVER_TABLE_STRUCTURE
+  int discover_table_structure(
+    SPIDER_TRX *trx,
+    SPIDER_SHARE *spider_share,
+    spider_string *str
+  );
+#endif
+};
+
+class spider_handlersocket_handler: public spider_db_handler
+{
+  spider_string           hs_sql;
+public:
+  bool                    hs_adding_keys;
+  SPIDER_DB_HS_STRING_REF_BUFFER hs_keys;
+  SPIDER_DB_HS_STRING_REF_BUFFER hs_upds;
+  SPIDER_DB_HS_STR_BUFFER hs_strs;
+  uint                    hs_strs_pos;
+  int                     hs_limit;
+  int                     hs_skip;
+  spider_handlersocket_share *handlersocket_share;
+  SPIDER_LINK_FOR_HASH    *link_for_hash;
+  uchar                   *minimum_select_bitmap;
+  spider_handlersocket_handler(
+    ha_spider *spider,
+    spider_handlersocket_share *db_share
+  );
+  ~spider_handlersocket_handler();
+  int init();
+  int append_index_hint(
+    spider_string *str,
+    int link_idx,
+    ulong sql_type
+  );
+  int append_table_name_with_adjusting(
+    spider_string *str,
+    int link_idx,
+    ulong sql_type
+  );
+  int append_tmp_table_and_sql_for_bka(
+    const key_range *start_key
+  );
+  int reuse_tmp_table_and_sql_for_bka();
+  int append_union_table_and_sql_for_bka(
+    const key_range *start_key
+  );
+  int reuse_union_table_and_sql_for_bka();
+  int append_insert_for_recovery(
+    ulong sql_type,
+    int link_idx
+  );
+  int append_update(
+    const TABLE *table,
+    my_ptrdiff_t ptr_diff
+  );
+  int append_update(
+    const TABLE *table,
+    my_ptrdiff_t ptr_diff,
+    int link_idx
+  );
+  int append_delete(
+    const TABLE *table,
+    my_ptrdiff_t ptr_diff
+  );
+  int append_delete(
+    const TABLE *table,
+    my_ptrdiff_t ptr_diff,
+    int link_idx
+  );
+  int append_insert_part();
+  int append_update_part();
+  int append_delete_part();
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  int append_increment_update_set_part();
+#endif
+  int append_update_set_part();
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  int append_direct_update_set_part();
+#endif
+  int append_minimum_select_without_quote(
+    spider_string *str
+  );
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  int append_minimum_select_by_field_idx_list(
+    spider_string *str,
+    uint32 *field_idxs,
+    size_t field_idxs_num
+  );
+  int append_dup_update_pushdown_part(
+    const char *alias,
+    uint alias_length
+  );
+  int append_update_columns_part(
+    const char *alias,
+    uint alias_length
+  );
+  int check_update_columns_part();
+  int append_select_part(
+    ulong sql_type
+  );
+#endif
+  int append_table_select_part(
+    ulong sql_type
+  );
+  int append_key_select_part(
+    ulong sql_type,
+    uint idx
+  );
+  int append_minimum_select_part(
+    ulong sql_type
+  );
+  int append_hint_after_table_part(
+    ulong sql_type
+  );
+  void set_where_pos(
+    ulong sql_type
+  );
+  void set_where_to_pos(
+    ulong sql_type
+  );
+  int check_item_type(
+    Item *item
+  );
+  int append_values_connector_part(
+    ulong sql_type
+  );
+  int append_values_terminator_part(
+    ulong sql_type
+  );
+  int append_union_table_connector_part(
+    ulong sql_type
+  );
+  int append_union_table_terminator_part(
+    ulong sql_type
+  );
+  int append_key_column_values_part(
+    const key_range *start_key,
+    ulong sql_type
+  );
+  int append_key_column_values_with_name_part(
+    const key_range *start_key,
+    ulong sql_type
+  );
+  int append_key_where_part(
+    const key_range *start_key,
+    const key_range *end_key,
+    ulong sql_type
+  );
+  int append_key_where(
+    spider_string *str,
+    spider_string *str_part,
+    spider_string *str_part2,
+    const key_range *start_key,
+    const key_range *end_key,
+    ulong sql_type,
+    bool set_order
+  );
+  int append_is_null_part(
+    ulong sql_type,
+    KEY_PART_INFO *key_part,
+    const key_range *key,
+    const uchar **ptr,
+    bool key_eq,
+    bool tgt_final
+  );
+  int append_is_null(
+    ulong sql_type,
+    spider_string *str,
+    spider_string *str_part,
+    spider_string *str_part2,
+    KEY_PART_INFO *key_part,
+    const key_range *key,
+    const uchar **ptr,
+    bool key_eq,
+    bool tgt_final
+  );
+  int append_where_terminator_part(
+    ulong sql_type,
+    bool set_order,
+    int key_count
+  );
+  int append_match_where_part(
+    ulong sql_type
+  );
+  int append_condition_part(
+    const char *alias,
+    uint alias_length,
+    ulong sql_type,
+    bool test_flg
+  );
+  int append_match_select_part(
+    ulong sql_type,
+    const char *alias,
+    uint alias_length
+  );
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  int append_sum_select_part(
+    ulong sql_type,
+    const char *alias,
+    uint alias_length
+  );
+#endif
+  void set_order_pos(
+    ulong sql_type
+  );
+  void set_order_to_pos(
+    ulong sql_type
+  );
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  int append_group_by_part(
+    const char *alias,
+    uint alias_length,
+    ulong sql_type
+  );
+#endif
+  int append_key_order_for_merge_with_alias_part(
+    const char *alias,
+    uint alias_length,
+    ulong sql_type
+  );
+  int append_key_order_for_direct_order_limit_with_alias_part(
+    const char *alias,
+    uint alias_length,
+    ulong sql_type
+  );
+  int append_key_order_with_alias_part(
+    const char *alias,
+    uint alias_length,
+    ulong sql_type
+  );
+  int append_limit_part(
+    longlong offset,
+    longlong limit,
+    ulong sql_type
+  );
+  int reappend_limit_part(
+    longlong offset,
+    longlong limit,
+    ulong sql_type
+  );
+  int append_select_lock_part(
+    ulong sql_type
+  );
+  int append_union_all_start_part(
+    ulong sql_type
+  );
+  int append_union_all_part(
+    ulong sql_type
+  );
+  int append_union_all_end_part(
+    ulong sql_type
+  );
+  int append_multi_range_cnt_part(
+    ulong sql_type,
+    uint multi_range_cnt,
+    bool with_comma
+  );
+  int append_multi_range_cnt_with_name_part(
+    ulong sql_type,
+    uint multi_range_cnt
+  );
+  int append_open_handler_part(
+    ulong sql_type,
+    uint handler_id,
+    SPIDER_CONN *conn,
+    int link_idx
+  );
+  int append_open_handler(
+    spider_string *str,
+    uint handler_id,
+    SPIDER_CONN *conn,
+    int link_idx
+  );
+  int append_close_handler_part(
+    ulong sql_type,
+    int link_idx
+  );
+  int append_insert_terminator_part(
+    ulong sql_type
+  );
+  int append_insert_values_part(
+    ulong sql_type
+  );
+  int append_insert_values(
+    spider_string *str
+  );
+  int append_into_part(
+    ulong sql_type
+  );
+  void set_insert_to_pos(
+    ulong sql_type
+  );
+  int append_from_part(
+    ulong sql_type,
+    int link_idx
+  );
+  int append_delete_all_rows_part(
+    ulong sql_type
+  );
+  int append_explain_select_part(
+    const key_range *start_key,
+    const key_range *end_key,
+    ulong sql_type,
+    int link_idx
+  );
+  bool is_sole_projection_field(
+    uint16 field_index
+  );
+  bool is_bulk_insert_exec_period(
+    bool bulk_end
+  );
+  bool sql_is_filled_up(
+    ulong sql_type
+  );
+  bool sql_is_empty(
+    ulong sql_type
+  );
+  bool support_multi_split_read();
+  bool support_bulk_update();
+  int bulk_tmp_table_insert();
+  int bulk_tmp_table_insert(
+    int link_idx
+  );
+  int bulk_tmp_table_end_bulk_insert();
+  int bulk_tmp_table_rnd_init();
+  int bulk_tmp_table_rnd_next();
+  int bulk_tmp_table_rnd_end();
+  bool need_copy_for_update(
+    int link_idx
+  );
+  bool bulk_tmp_table_created();
+  int mk_bulk_tmp_table_and_bulk_start();
+  void rm_bulk_tmp_table();
+  int insert_lock_tables_list(
+    SPIDER_CONN *conn,
+    int link_idx
+  );
+  int append_lock_tables_list(
+    SPIDER_CONN *conn,
+    int link_idx,
+    int *appended
+  );
+  int realloc_sql(
+    ulong *realloced
+  );
+  int reset_sql(
+    ulong sql_type
+  );
+  int reset_keys(
+    ulong sql_type
+  );
+  int reset_upds(
+    ulong sql_type
+  );
+  int reset_strs(
+    ulong sql_type
+  );
+  int reset_strs_pos(
+    ulong sql_type
+  );
+  int push_back_upds(
+    SPIDER_HS_STRING_REF &info
+  );
+  int request_buf_find(
+    int link_idx
+  );
+  int request_buf_insert(
+    int link_idx
+  );
+  int request_buf_update(
+    int link_idx
+  );
+  int request_buf_delete(
+    int link_idx
+  );
+  bool need_lock_before_set_sql_for_exec(
+    ulong sql_type
+  );
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+  int set_sql_for_exec(
+    ulong sql_type,
+    int link_idx,
+    SPIDER_LINK_IDX_CHAIN *link_idx_chain
+  );
+#endif
+  int set_sql_for_exec(
+    ulong sql_type,
+    int link_idx
+  );
+  int set_sql_for_exec(
+    spider_db_copy_table *tgt_ct,
+    ulong sql_type
+  );
+  int execute_sql(
+    ulong sql_type,
+    SPIDER_CONN *conn,
+    int quick_mode,
+    int *need_mon
+  );
+  int reset();
+  int sts_mode_exchange(
+    int sts_mode
+  );
+  int show_table_status(
+    int link_idx,
+    int sts_mode,
+    uint flag
+  );
+  int crd_mode_exchange(
+    int crd_mode
+  );
+  int show_index(
+    int link_idx,
+    int crd_mode
+  );
+  int show_records(
+    int link_idx
+  );
+  int show_last_insert_id(
+    int link_idx,
+    ulonglong &last_insert_id
+  );
+  ha_rows explain_select(
+    const key_range *start_key,
+    const key_range *end_key,
+    int link_idx
+  );
+  int lock_tables(
+    int link_idx
+  );
+  int unlock_tables(
+    int link_idx
+  );
+  int disable_keys(
+    SPIDER_CONN *conn,
+    int link_idx
+  );
+  int enable_keys(
+    SPIDER_CONN *conn,
+    int link_idx
+  );
+  int check_table(
+    SPIDER_CONN *conn,
+    int link_idx,
+    HA_CHECK_OPT* check_opt
+  );
+  int repair_table(
+    SPIDER_CONN *conn,
+    int link_idx,
+    HA_CHECK_OPT* check_opt
+  );
+  int analyze_table(
+    SPIDER_CONN *conn,
+    int link_idx
+  );
+  int optimize_table(
+    SPIDER_CONN *conn,
+    int link_idx
+  );
+  int flush_tables(
+    SPIDER_CONN *conn,
+    int link_idx,
+    bool lock
+  );
+  int flush_logs(
+    SPIDER_CONN *conn,
+    int link_idx
+  );
+  int insert_opened_handler(
+    SPIDER_CONN *conn,
+    int link_idx
+  );
+  int delete_opened_handler(
+    SPIDER_CONN *conn,
+    int link_idx
+  );
+  int sync_from_clone_source(
+    spider_db_handler *dbton_hdl
+  );
+  bool support_use_handler(
+    int use_handler
+  );
+  void minimum_select_bitmap_create();
+  bool minimum_select_bit_is_set(
+    uint field_index
+  );
+  void copy_minimum_select_bitmap(
+    uchar *bitmap
+  );
+  int init_union_table_name_pos();
+  int set_union_table_name_pos();
+  int reset_union_table_name(
+    spider_string *str,
+    int link_idx,
+    ulong sql_type
+  );
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+  int append_from_and_tables_part(
+    spider_fields *fields,
+    ulong sql_type
+  );
+  int reappend_tables_part(
+    spider_fields *fields,
+    ulong sql_type
+  );
+  int append_where_part(
+    ulong sql_type
+  );
+  int append_having_part(
+    ulong sql_type
+  );
+  int append_item_type_part(
+    Item *item,
+    const char *alias,
+    uint alias_length,
+    bool use_fields,
+    spider_fields *fields,
+    ulong sql_type
+  );
+  int append_list_item_select_part(
+    List<Item> *select,
+    const char *alias,
+    uint alias_length,
+    bool use_fields,
+    spider_fields *fields,
+    ulong sql_type
+  );
+  int append_group_by_part(
+    ORDER *order,
+    const char *alias,
+    uint alias_length,
+    bool use_fields,
+    spider_fields *fields,
+    ulong sql_type
+  );
+  int append_order_by_part(
+    ORDER *order,
+    const char *alias,
+    uint alias_length,
+    bool use_fields,
+    spider_fields *fields,
+    ulong sql_type
+  );
+#endif
+};
diff --git a/storage/spider/spd_db_include.cc b/storage/spider/spd_db_include.cc
new file mode 100644
index 00000000..b9a0532d
--- /dev/null
+++ b/storage/spider/spd_db_include.cc
@@ -0,0 +1,226 @@
+/* Copyright (C) 2018-2020 Kentoku Shiba
+   Copyright (C) 2018-2020 MariaDB corp
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
+
+#define MYSQL_SERVER 1
+#include <my_global.h>
+#include "mysql_version.h"
+#include "spd_environ.h"
+#if MYSQL_VERSION_ID < 50500
+#include "mysql_priv.h"
+#include <mysql/plugin.h>
+#else
+#include "sql_priv.h"
+#include "probes_mysql.h"
+#include "sql_class.h"
+#endif
+#include "sql_common.h"
+#include <mysql.h>
+#include <errmsg.h>
+#include "spd_err.h"
+#include "spd_db_include.h"
+#include "spd_include.h"
+#include "spd_conn.h"
+
+extern SPIDER_DBTON spider_dbton[SPIDER_DBTON_SIZE];
+
+spider_db_result::spider_db_result(
+  SPIDER_DB_CONN *in_db_conn
+) : db_conn(in_db_conn), dbton_id(in_db_conn->dbton_id)
+{
+  DBUG_ENTER("spider_db_result::spider_db_result");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+#ifdef HA_HAS_CHECKSUM_EXTENDED
+int spider_db_result::fetch_table_checksum(
+  ha_spider *spider
+) {
+  DBUG_ENTER("spider_db_result::fetch_table_checksum");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(0);
+}
+#endif
+
+uint spider_db_result::limit_mode()
+{
+  DBUG_ENTER("spider_db_result::limit_mode");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(spider_dbton[dbton_id].db_util->limit_mode());
+}
+
+spider_db_conn::spider_db_conn(
+  SPIDER_CONN *in_conn
+) : conn(in_conn), dbton_id(in_conn->dbton_id)
+{
+  DBUG_ENTER("spider_db_conn::spider_db_conn");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+bool spider_db_conn::set_loop_check_in_bulk_sql()
+{
+  DBUG_ENTER("spider_db_conn::set_loop_check_in_bulk_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(FALSE);
+}
+
+int spider_db_conn::set_loop_check(
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_conn::set_loop_check");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+int spider_db_conn::fin_loop_check()
+{
+  st_spider_conn_loop_check *lcptr;
+  DBUG_ENTER("spider_db_conn::fin_loop_check");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (conn->loop_check_queue.records)
+  {
+    uint l = 0;
+    while ((lcptr = (SPIDER_CONN_LOOP_CHECK *) my_hash_element(
+      &conn->loop_check_queue, l)))
+    {
+      lcptr->flag = 0;
+      ++l;
+    }
+    my_hash_reset(&conn->loop_check_queue);
+  }
+  lcptr = conn->loop_check_ignored_first;
+  while (lcptr)
+  {
+    lcptr->flag = 0;
+    lcptr = lcptr->next;
+  }
+  conn->loop_check_ignored_first = NULL;
+  lcptr = conn->loop_check_meraged_first;
+  while (lcptr)
+  {
+    lcptr->flag = 0;
+    lcptr = lcptr->next;
+  }
+  conn->loop_check_meraged_first = NULL;
+  DBUG_RETURN(0);
+}
+
+uint spider_db_conn::limit_mode()
+{
+  DBUG_ENTER("spider_db_conn::limit_mode");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(spider_dbton[dbton_id].db_util->limit_mode());
+}
+
+int spider_db_util::append_loop_check(
+  spider_string *str,
+  SPIDER_CONN *conn
+) {
+  DBUG_ENTER("spider_db_util::append_loop_check");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+bool spider_db_util::tables_on_different_db_are_joinable()
+{
+  DBUG_ENTER("spider_db_util::tables_on_different_db_are_joinable");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(TRUE);
+}
+
+bool spider_db_util::socket_has_default_value()
+{
+  DBUG_ENTER("spider_db_util::socket_has_default_value");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(TRUE);
+}
+
+bool spider_db_util::database_has_default_value()
+{
+  DBUG_ENTER("spider_db_util::database_has_default_value");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(TRUE);
+}
+
+bool spider_db_util::append_charset_name_before_string()
+{
+  DBUG_ENTER("spider_db_util::append_charset_name_before_string");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(FALSE);
+}
+
+uint spider_db_util::limit_mode()
+{
+  DBUG_ENTER("spider_db_util::limit_mode");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(0);
+}
+
+#ifdef HA_HAS_CHECKSUM_EXTENDED
+bool spider_db_share::checksum_support()
+{
+  DBUG_ENTER("spider_db_share::checksum_support");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(FALSE);
+}
+
+int spider_db_handler::checksum_table(
+  int link_idx
+) {
+  DBUG_ENTER("spider_db_handler::checksum_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(0);
+}
+#endif
+
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+bool spider_db_handler::check_direct_update(
+  st_select_lex *select_lex,
+  longlong select_limit,
+  longlong offset_limit
+) {
+  DBUG_ENTER("spider_db_handler::check_direct_update");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (
+    select_limit != 9223372036854775807LL ||
+    offset_limit != 0 ||
+    select_lex->order_list.elements
+  ) {
+    DBUG_RETURN(TRUE);
+  }
+  DBUG_RETURN(FALSE);
+}
+
+bool spider_db_handler::check_direct_delete(
+  st_select_lex *select_lex,
+  longlong select_limit,
+  longlong offset_limit
+) {
+  DBUG_ENTER("spider_db_handler::check_direct_delete");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (
+    select_limit != 9223372036854775807LL ||
+    offset_limit != 0 ||
+    select_lex->order_list.elements
+  ) {
+    DBUG_RETURN(TRUE);
+  }
+  DBUG_RETURN(FALSE);
+}
+#endif
diff --git a/storage/spider/spd_db_include.h b/storage/spider/spd_db_include.h
new file mode 100644
index 00000000..41e24e06
--- /dev/null
+++ b/storage/spider/spd_db_include.h
@@ -0,0 +1,2124 @@
+/* Copyright (C) 2008-2020 Kentoku Shiba
+   Copyright (C) 2019-2020 MariaDB corp
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+#include "hs_compat.h"
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+#include "hstcpcli.hpp"
+#endif
+
+#define SPIDER_DBTON_SIZE 15
+
+#ifndef SIZEOF_STORED_DOUBLE
+#define SIZEOF_STORED_DOUBLE 8
+#endif
+
+#define SPIDER_DB_WRAPPER_MYSQL "mysql"
+#define SPIDER_DB_WRAPPER_MARIADB "mariadb"
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100204
+#define PLUGIN_VAR_CAN_MEMALLOC
+/*
+#define ITEM_FUNC_CASE_PARAMS_ARE_PUBLIC
+#define HASH_UPDATE_WITH_HASH_VALUE
+*/
+#else
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+#define HANDLER_HAS_DIRECT_UPDATE_ROWS_WITH_HS
+#endif
+#endif
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100002
+#define SPIDER_HAS_DISCOVER_TABLE_STRUCTURE
+#define SPIDER_HAS_APPEND_FOR_SINGLE_QUOTE
+#define SPIDER_HAS_SHOW_SIMPLE_FUNC
+#define SPIDER_HAS_JT_HASH_INDEX_MERGE
+#define SPIDER_HAS_EXPR_CACHE_ITEM
+#else
+#define SPIDER_NEED_CHECK_CONDITION_AT_CHECKING_DIRECT_ORDER_LIMIT
+#endif
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100007
+#define SPIDER_ITEM_HAS_CMP_TYPE
+#endif
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100004
+#define SPIDER_HAS_TIME_STATUS
+#define SPIDER_HAS_DECIMAL_OPERATION_RESULTS_VALUE_TYPE
+#endif
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100014
+#define SPIDER_ITEM_STRING_WITHOUT_SET_STR_WITH_COPY
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100100
+#define SPIDER_ITEM_STRING_WITHOUT_SET_STR_WITH_COPY_AND_THDPTR
+#endif
+#endif
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100108
+#define SPIDER_HAS_GROUP_BY_HANDLER
+#endif
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100200
+#define SPIDER_ORDER_HAS_ENUM_ORDER
+#endif
+
+#if defined(MARIADB_BASE_VERSION)
+#define SPIDER_ITEM_GEOFUNC_NAME_HAS_MBR
+#define SPIDER_HANDLER_AUTO_REPAIR_HAS_ERROR
+#endif
+
+class spider_db_conn;
+typedef spider_db_conn SPIDER_DB_CONN;
+class spider_db_result;
+typedef spider_db_result SPIDER_DB_RESULT;
+class spider_db_row;
+typedef spider_db_row SPIDER_DB_ROW;
+class spider_db_result_buffer;
+typedef spider_db_result_buffer SPIDER_DB_RESULT_BUFFER;
+struct st_spider_conn;
+typedef st_spider_conn SPIDER_CONN;
+struct st_spider_result;
+typedef st_spider_result SPIDER_RESULT;
+
+#define SPIDER_SQL_SEMICOLON_STR ";"
+#define SPIDER_SQL_SEMICOLON_LEN sizeof(SPIDER_SQL_SEMICOLON_STR) - 1
+#define SPIDER_SQL_COLON_STR ":"
+#define SPIDER_SQL_COLON_LEN sizeof(SPIDER_SQL_COLON_STR) - 1
+#define SPIDER_SQL_VALUE_QUOTE_STR "'"
+#define SPIDER_SQL_VALUE_QUOTE_LEN (sizeof(SPIDER_SQL_VALUE_QUOTE_STR) - 1)
+
+#define SPIDER_SQL_DOT_STR "."
+#define SPIDER_SQL_DOT_LEN (sizeof(SPIDER_SQL_DOT_STR) - 1)
+#define SPIDER_SQL_HYPHEN_STR "-"
+#define SPIDER_SQL_HYPHEN_LEN (sizeof(SPIDER_SQL_HYPHEN_STR) - 1)
+
+#define SPIDER_SQL_EQUAL_STR " = "
+#define SPIDER_SQL_EQUAL_LEN (sizeof(SPIDER_SQL_EQUAL_STR) - 1)
+#define SPIDER_SQL_AND_STR " and "
+#define SPIDER_SQL_AND_LEN (sizeof(SPIDER_SQL_AND_STR) - 1)
+#define SPIDER_SQL_BETWEEN_STR " between "
+#define SPIDER_SQL_BETWEEN_LEN (sizeof(SPIDER_SQL_BETWEEN_STR) - 1)
+
+#define SPIDER_SQL_TABLE_NAME_STR "`table_name`"
+#define SPIDER_SQL_TABLE_NAME_LEN sizeof(SPIDER_SQL_TABLE_NAME_STR) - 1
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+#define SPIDER_SQL_HS_EQUAL_STR "="
+#define SPIDER_SQL_HS_EQUAL_LEN (sizeof(SPIDER_SQL_HS_EQUAL_STR) - 1)
+#define SPIDER_SQL_HS_GT_STR ">"
+#define SPIDER_SQL_HS_GT_LEN (sizeof(SPIDER_SQL_HS_GT_STR) - 1)
+#define SPIDER_SQL_HS_GTEQUAL_STR ">="
+#define SPIDER_SQL_HS_GTEQUAL_LEN (sizeof(SPIDER_SQL_HS_GTEQUAL_STR) - 1)
+#define SPIDER_SQL_HS_LT_STR "<"
+#define SPIDER_SQL_HS_LT_LEN (sizeof(SPIDER_SQL_HS_LT_STR) - 1)
+#define SPIDER_SQL_HS_INSERT_STR "+"
+#define SPIDER_SQL_HS_INSERT_LEN (sizeof(SPIDER_SQL_HS_INSERT_STR) - 1)
+#define SPIDER_SQL_HS_UPDATE_STR "U"
+#define SPIDER_SQL_HS_UPDATE_LEN (sizeof(SPIDER_SQL_HS_UPDATE_STR) - 1)
+#define SPIDER_SQL_HS_DELETE_STR "D"
+#define SPIDER_SQL_HS_DELETE_LEN (sizeof(SPIDER_SQL_HS_DELETE_STR) - 1)
+#define SPIDER_SQL_HS_INCREMENT_STR "+"
+#define SPIDER_SQL_HS_INCREMENT_LEN (sizeof(SPIDER_SQL_HS_INCREMENT_STR) - 1)
+#define SPIDER_SQL_HS_DECREMENT_STR "-"
+#define SPIDER_SQL_HS_DECREMENT_LEN (sizeof(SPIDER_SQL_HS_DECREMENT_STR) - 1)
+#endif
+#define SPIDER_SQL_HS_LTEQUAL_STR "<="
+#define SPIDER_SQL_HS_LTEQUAL_LEN (sizeof(SPIDER_SQL_HS_LTEQUAL_STR) - 1)
+
+#ifdef ITEM_FUNC_CASE_PARAMS_ARE_PUBLIC
+#define SPIDER_SQL_CASE_STR "case "
+#define SPIDER_SQL_CASE_LEN (sizeof(SPIDER_SQL_CASE_STR) - 1)
+#define SPIDER_SQL_WHEN_STR " when "
+#define SPIDER_SQL_WHEN_LEN (sizeof(SPIDER_SQL_WHEN_STR) - 1)
+#define SPIDER_SQL_THEN_STR " then "
+#define SPIDER_SQL_THEN_LEN (sizeof(SPIDER_SQL_THEN_STR) - 1)
+#define SPIDER_SQL_ELSE_STR " else "
+#define SPIDER_SQL_ELSE_LEN (sizeof(SPIDER_SQL_ELSE_STR) - 1)
+#define SPIDER_SQL_END_STR " end"
+#define SPIDER_SQL_END_LEN (sizeof(SPIDER_SQL_END_STR) - 1)
+#endif
+
+#define SPIDER_SQL_USING_STR " using "
+#define SPIDER_SQL_USING_LEN (sizeof(SPIDER_SQL_USING_STR) - 1)
+#define SPIDER_SQL_MBR_STR "mbr"
+#define SPIDER_SQL_MBR_LEN (sizeof(SPIDER_SQL_MBR_STR) - 1)
+#define SPIDER_SQL_MBR_EQUAL_STR "mbrequal("
+#define SPIDER_SQL_MBR_EQUAL_LEN (sizeof(SPIDER_SQL_MBR_EQUAL_STR) - 1)
+#define SPIDER_SQL_MBR_CONTAIN_STR "mbrcontains("
+#define SPIDER_SQL_MBR_CONTAIN_LEN (sizeof(SPIDER_SQL_MBR_CONTAIN_STR) - 1)
+#define SPIDER_SQL_MBR_INTERSECT_STR "mbrintersects("
+#define SPIDER_SQL_MBR_INTERSECT_LEN (sizeof(SPIDER_SQL_MBR_INTERSECT_STR) - 1)
+#define SPIDER_SQL_MBR_WITHIN_STR "mbrwithin("
+#define SPIDER_SQL_MBR_WITHIN_LEN (sizeof(SPIDER_SQL_MBR_WITHIN_STR) - 1)
+#define SPIDER_SQL_MBR_DISJOINT_STR "mbrdisjoint("
+#define SPIDER_SQL_MBR_DISJOINT_LEN (sizeof(SPIDER_SQL_MBR_DISJOINT_STR) - 1)
+#define SPIDER_SQL_NOT_BETWEEN_STR "not between"
+#define SPIDER_SQL_NOT_BETWEEN_LEN (sizeof(SPIDER_SQL_NOT_BETWEEN_STR) - 1)
+#define SPIDER_SQL_TO_FLOAT_STR "/* create function to_float(a decimal(20,6)) returns float return a */ to_float("
+#define SPIDER_SQL_TO_FLOAT_LEN (sizeof(SPIDER_SQL_TO_FLOAT_STR) - 1)
+#define SPIDER_SQL_IN_STR "in("
+#define SPIDER_SQL_IN_LEN (sizeof(SPIDER_SQL_IN_STR) - 1)
+#define SPIDER_SQL_NOT_IN_STR "not in("
+#define SPIDER_SQL_NOT_IN_LEN (sizeof(SPIDER_SQL_NOT_IN_STR) - 1)
+#define SPIDER_SQL_NOT_LIKE_STR "not like"
+#define SPIDER_SQL_NOT_LIKE_LEN (sizeof(SPIDER_SQL_NOT_LIKE_STR) - 1)
+#define SPIDER_SQL_AS_CHAR_STR " as char"
+#define SPIDER_SQL_AS_CHAR_LEN (sizeof(SPIDER_SQL_AS_CHAR_STR) - 1)
+#define SPIDER_SQL_CAST_STR "cast("
+#define SPIDER_SQL_CAST_LEN (sizeof(SPIDER_SQL_CAST_STR) - 1)
+#define SPIDER_SQL_AS_DATETIME_STR " as datetime"
+#define SPIDER_SQL_AS_DATETIME_LEN (sizeof(SPIDER_SQL_AS_DATETIME_STR) - 1)
+#define SPIDER_SQL_AS_DECIMAL_STR " as decimal"
+#define SPIDER_SQL_AS_DECIMAL_LEN (sizeof(SPIDER_SQL_AS_DECIMAL_STR) - 1)
+#define SPIDER_SQL_AS_SIGNED_STR " as signed"
+#define SPIDER_SQL_AS_SIGNED_LEN (sizeof(SPIDER_SQL_AS_SIGNED_STR) - 1)
+#define SPIDER_SQL_AS_UNSIGNED_STR " as unsigned"
+#define SPIDER_SQL_AS_UNSIGNED_LEN (sizeof(SPIDER_SQL_AS_UNSIGNED_STR) - 1)
+#define SPIDER_SQL_AS_DATE_STR " as date"
+#define SPIDER_SQL_AS_DATE_LEN (sizeof(SPIDER_SQL_AS_DATE_STR) - 1)
+#define SPIDER_SQL_AS_TIME_STR " as time"
+#define SPIDER_SQL_AS_TIME_LEN (sizeof(SPIDER_SQL_AS_TIME_STR) - 1)
+#define SPIDER_SQL_AS_BINARY_STR " as binary"
+#define SPIDER_SQL_AS_BINARY_LEN (sizeof(SPIDER_SQL_AS_BINARY_STR) - 1)
+#define SPIDER_SQL_AS_FLOAT_STR " as float"
+#define SPIDER_SQL_AS_FLOAT_LEN (sizeof(SPIDER_SQL_AS_FLOAT_STR) - 1)
+#define SPIDER_SQL_IS_TRUE_STR " is true"
+#define SPIDER_SQL_IS_TRUE_LEN (sizeof(SPIDER_SQL_IS_TRUE_STR) - 1)
+#define SPIDER_SQL_IS_NOT_TRUE_STR " is not true"
+#define SPIDER_SQL_IS_NOT_TRUE_LEN (sizeof(SPIDER_SQL_IS_NOT_TRUE_STR) - 1)
+#define SPIDER_SQL_IS_FALSE_STR " is false"
+#define SPIDER_SQL_IS_FALSE_LEN (sizeof(SPIDER_SQL_IS_FALSE_STR) - 1)
+#define SPIDER_SQL_IS_NOT_FALSE_STR " is not false"
+#define SPIDER_SQL_IS_NOT_FALSE_LEN (sizeof(SPIDER_SQL_IS_NOT_FALSE_STR) - 1)
+#define SPIDER_SQL_NULL_CHAR_STR ""
+#define SPIDER_SQL_NULL_CHAR_LEN (sizeof(SPIDER_SQL_NULL_CHAR_STR) - 1)
+#define SPIDER_SQL_CREATE_TABLE_STR "create table "
+#define SPIDER_SQL_CREATE_TABLE_LEN (sizeof(SPIDER_SQL_CREATE_TABLE_STR) - 1)
+#define SPIDER_SQL_DEFAULT_CHARSET_STR " default charset "
+#define SPIDER_SQL_DEFAULT_CHARSET_LEN (sizeof(SPIDER_SQL_DEFAULT_CHARSET_STR) - 1)
+#define SPIDER_SQL_CHARACTER_SET_STR " character set "
+#define SPIDER_SQL_CHARACTER_SET_LEN (sizeof(SPIDER_SQL_CHARACTER_SET_STR) - 1)
+#define SPIDER_SQL_COLLATE_STR " collate "
+#define SPIDER_SQL_COLLATE_LEN (sizeof(SPIDER_SQL_COLLATE_STR) - 1)
+#define SPIDER_SQL_COMMENT_STR " comment "
+#define SPIDER_SQL_COMMENT_LEN (sizeof(SPIDER_SQL_COMMENT_STR) - 1)
+#define SPIDER_SQL_CONNECTION_STR " connection "
+#define SPIDER_SQL_CONNECTION_LEN (sizeof(SPIDER_SQL_CONNECTION_STR) - 1)
+#define SPIDER_SQL_LCL_NAME_QUOTE_STR "`"
+#define SPIDER_SQL_LCL_NAME_QUOTE_LEN (sizeof(SPIDER_SQL_LCL_NAME_QUOTE_STR) - 1)
+#define SPIDER_SQL_MIN_STR "min"
+#define SPIDER_SQL_MIN_LEN (sizeof(SPIDER_SQL_MIN_STR) - 1)
+
+#define SPIDER_SQL_LOP_CHK_PRM_PRF_STR "spider_lc_"
+#define SPIDER_SQL_LOP_CHK_PRM_PRF_LEN (sizeof(SPIDER_SQL_LOP_CHK_PRM_PRF_STR) - 1)
+
+#define SPIDER_CONN_KIND_MYSQL (1 << 0)
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+#define SPIDER_CONN_KIND_HS_READ (1 << 2)
+#define SPIDER_CONN_KIND_HS_WRITE (1 << 3)
+#endif
+
+#define SPIDER_SQL_KIND_SQL (1 << 0)
+#define SPIDER_SQL_KIND_HANDLER (1 << 1)
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+#define SPIDER_SQL_KIND_HS (1 << 2)
+#endif
+
+#define SPIDER_SQL_TYPE_SELECT_SQL (1 << 0)
+#define SPIDER_SQL_TYPE_INSERT_SQL (1 << 1)
+#define SPIDER_SQL_TYPE_UPDATE_SQL (1 << 2)
+#define SPIDER_SQL_TYPE_DELETE_SQL (1 << 3)
+#define SPIDER_SQL_TYPE_BULK_UPDATE_SQL (1 << 4)
+#define SPIDER_SQL_TYPE_TMP_SQL (1 << 5)
+#define SPIDER_SQL_TYPE_DROP_TMP_TABLE_SQL (1 << 6)
+#define SPIDER_SQL_TYPE_OTHER_SQL (1 << 7)
+#define SPIDER_SQL_TYPE_HANDLER (1 << 8)
+#define SPIDER_SQL_TYPE_SELECT_HS (1 << 9)
+#define SPIDER_SQL_TYPE_INSERT_HS (1 << 10)
+#define SPIDER_SQL_TYPE_UPDATE_HS (1 << 11)
+#define SPIDER_SQL_TYPE_DELETE_HS (1 << 12)
+#define SPIDER_SQL_TYPE_OTHER_HS (1 << 13)
+
+enum spider_bulk_upd_start {
+  SPD_BU_NOT_START,
+  SPD_BU_START_BY_INDEX_OR_RND_INIT,
+  SPD_BU_START_BY_BULK_INIT
+};
+
+enum spider_index_rnd_init {
+  SPD_NONE,
+  SPD_INDEX,
+  SPD_RND
+};
+
+struct st_spider_ft_info;
+struct st_spider_result;
+typedef struct st_spider_transaction SPIDER_TRX;
+typedef struct st_spider_share SPIDER_SHARE;
+class ha_spider;
+class spider_db_copy_table;
+class spider_db_handler;
+
+class spider_string
+{
+public:
+  bool mem_calc_inited;
+  String str;
+  uint id;
+  const char *func_name;
+  const char *file_name;
+  ulong line_no;
+  uint32 current_alloc_mem;
+  spider_string *next;
+
+  spider_string();
+  spider_string(
+    uint32 length_arg
+  );
+  spider_string(
+    const char *str,
+    CHARSET_INFO *cs
+  );
+  spider_string(
+    const char *str,
+    uint32 len,
+    CHARSET_INFO *cs
+  );
+  spider_string(
+    char *str,
+    uint32 len,
+    CHARSET_INFO *cs
+  );
+  spider_string(
+    const String &str
+  );
+  ~spider_string();
+  void init_mem_calc(
+    uint id,
+    const char *func_name,
+    const char *file_name,
+    ulong line_no
+  );
+  void mem_calc();
+  String *get_str();
+  void set_charset(
+    CHARSET_INFO *charset_arg
+  );
+  CHARSET_INFO *charset() const;
+  uint32 length() const;
+  uint32 alloced_length() const;
+  char &operator [] (
+    uint32 i
+  ) const;
+  void length(
+    uint32 len
+  );
+  bool is_empty() const;
+  const char *ptr() const;
+  char *c_ptr();
+  char *c_ptr_quick();
+  char *c_ptr_safe();
+  LEX_STRING lex_string() const;
+  void set(
+    String &str,
+    uint32 offset,
+    uint32 arg_length
+  );
+  void set(
+    char *str,
+    uint32 arg_length,
+    CHARSET_INFO *cs
+  );
+  void set(
+    const char *str,
+    uint32 arg_length,
+    CHARSET_INFO *cs
+  );
+  bool set_ascii(
+    const char *str,
+    uint32 arg_length
+  );
+  void set_quick(
+    char *str,
+    uint32 arg_length,
+    CHARSET_INFO *cs
+  );
+  bool set_int(
+    longlong num,
+    bool unsigned_flag,
+    CHARSET_INFO *cs
+  );
+  bool set(
+    longlong num,
+    CHARSET_INFO *cs
+  );
+  bool set(
+    ulonglong num,
+    CHARSET_INFO *cs
+  );
+  bool set_real(
+    double num,
+    uint decimals,
+    CHARSET_INFO *cs
+  );
+  void chop();
+  void free();
+  bool alloc(
+    uint32 arg_length
+  );
+  bool real_alloc(
+    uint32 arg_length
+  );
+  bool realloc(
+    uint32 arg_length
+  );
+  void shrink(
+    uint32 arg_length
+  );
+  bool is_alloced();
+  spider_string& operator = (
+    const String &s
+  );
+  bool copy();
+  bool copy(
+    const spider_string &s
+  );
+  bool copy(
+    const String &s
+  );
+  bool copy(
+    const char *s,
+    uint32 arg_length,
+    CHARSET_INFO *cs
+  );
+  bool needs_conversion(
+    uint32 arg_length,
+    CHARSET_INFO *cs_from,
+    CHARSET_INFO *cs_to,
+    uint32 *offset
+  );
+  bool copy_aligned(
+    const char *s,
+    uint32 arg_length,
+    uint32 offset,
+    CHARSET_INFO *cs
+  );
+  bool set_or_copy_aligned(
+    const char *s,
+    uint32 arg_length,
+    CHARSET_INFO *cs
+  );
+  bool copy(
+    const char *s,
+    uint32 arg_length,
+    CHARSET_INFO *csfrom,
+    CHARSET_INFO *csto,
+    uint *errors
+  );
+  bool append(
+    const spider_string &s
+  );
+  bool append(
+    const String &s
+  );
+  bool append(
+    const char *s
+  );
+  bool append(
+    LEX_STRING *ls
+  );
+  bool append(
+    const char *s,
+    uint32 arg_length
+  );
+  bool append(
+    const char *s,
+    uint32 arg_length,
+    CHARSET_INFO *cs
+  );
+  bool append_ulonglong(
+    ulonglong val
+  );
+  bool append(
+    IO_CACHE *file,
+    uint32 arg_length
+  );
+  bool append_with_prefill(
+    const char *s,
+    uint32 arg_length,
+    uint32 full_length,
+    char fill_char
+  );
+  int strstr(
+    const String &search,
+    uint32 offset = 0
+  );
+  int strrstr(
+    const String &search,
+    uint32 offset = 0
+  );
+  bool replace(
+    uint32 offset,
+    uint32 arg_length,
+    const char *to,
+    uint32 length
+  );
+  bool replace(
+    uint32 offset,
+    uint32 arg_length,
+    const String &to
+  );
+  inline bool append(
+    char chr
+  );
+  bool fill(
+    uint32 max_length,
+    char fill
+  );
+  void strip_sp();
+  uint32 numchars();
+  int charpos(
+    int i,
+    uint32 offset=0
+  );
+  int reserve(
+    uint32 space_needed
+  );
+  int reserve(
+    uint32 space_needed,
+    uint32 grow_by
+  );
+  void q_append(
+    const char c
+  );
+  void q_append(
+    const uint32 n
+  );
+  void q_append(
+    double d
+  );
+  void q_append(
+    double *d
+  );
+  void q_append(
+    const char *data,
+    uint32 data_len
+  );
+  void write_at_position(
+    int position,
+    uint32 value
+  );
+  void qs_append(
+    const char *str,
+    uint32 len
+  );
+  void qs_append(
+    double d
+  );
+  void qs_append(
+    double *d
+  );
+  void qs_append(
+    const char c
+  );
+  void qs_append(
+    int i
+  );
+  void qs_append(
+    uint i
+  );
+  char *prep_append(
+    uint32 arg_length,
+    uint32 step_alloc
+  );
+  bool append(
+    const char *s,
+    uint32 arg_length,
+    uint32 step_alloc
+  );
+  void append_escape_string(
+    const char *st,
+    uint len
+  );
+  void append_escape_string(
+    const char *st,
+    uint len,
+    CHARSET_INFO *cs
+  );
+  bool append_for_single_quote(
+    const char *st,
+    uint len
+  );
+  bool append_for_single_quote(
+    const String *s
+  );
+  bool append_for_single_quote(
+    const char *st
+  );
+  void print(
+    String *print
+  );
+  void swap(
+    spider_string &s
+  );
+  bool uses_buffer_owned_by(
+    const String *s
+  ) const;
+  bool is_ascii() const;
+};
+
+typedef struct spider_table_link_idx_holder SPIDER_TABLE_LINK_IDX_HOLDER;
+typedef struct spider_table_holder SPIDER_TABLE_HOLDER;
+
+typedef struct spider_link_idx_holder
+{
+  spider_table_link_idx_holder *table_link_idx_holder;
+  int link_idx;
+  int link_status;
+  spider_link_idx_holder *next_table;
+  spider_link_idx_holder *next;
+} SPIDER_LINK_IDX_HOLDER;
+
+typedef struct spider_link_idx_chain
+{
+  SPIDER_CONN *conn;
+  spider_link_idx_holder *link_idx_holder;
+  spider_link_idx_holder *current_link_idx_holder;
+  int link_status;
+  spider_link_idx_chain *next;
+} SPIDER_LINK_IDX_CHAIN;
+
+typedef struct spider_table_link_idx_holder
+{
+  spider_table_holder *table_holder;
+  spider_link_idx_holder *first_link_idx_holder;
+  spider_link_idx_holder *last_link_idx_holder;
+  spider_link_idx_holder *current_link_idx_holder;
+  uint link_idx_holder_count;
+} SPIDER_TABLE_LINK_IDX_HOLDER;
+
+typedef struct spider_conn_holder
+{
+  SPIDER_CONN *conn;
+  spider_table_link_idx_holder *table_link_idx_holder;
+  uint link_idx_holder_count_max;
+  bool checked_for_same_conn;
+  long access_balance;
+  spider_conn_holder *prev;
+  spider_conn_holder *next;
+} SPIDER_CONN_HOLDER;
+
+typedef struct spider_table_holder
+{
+  TABLE *table;
+  ha_spider *spider;
+  spider_string *alias;
+} SPIDER_TABLE_HOLDER;
+
+typedef struct spider_field_holder
+{
+  Field *field;
+  ha_spider *spider;
+  spider_string *alias;
+  spider_field_holder *next;
+} SPIDER_FIELD_HOLDER;
+
+typedef struct spider_field_chain
+{
+  spider_field_holder *field_holder;
+  spider_field_chain *next;
+} SPIDER_FIELD_CHAIN;
+
+class spider_fields
+{
+  uint dbton_count;
+  uint current_dbton_num;
+  uint dbton_ids[SPIDER_DBTON_SIZE];
+  uint table_count;
+  uint current_table_num;
+  SPIDER_TABLE_HOLDER *table_holder;
+  SPIDER_LINK_IDX_CHAIN *first_link_idx_chain;
+  SPIDER_LINK_IDX_CHAIN *last_link_idx_chain;
+  SPIDER_LINK_IDX_CHAIN *current_link_idx_chain;
+  SPIDER_LINK_IDX_CHAIN *first_ok_link_idx_chain;
+  SPIDER_CONN_HOLDER *first_conn_holder;
+  SPIDER_CONN_HOLDER *last_conn_holder;
+  SPIDER_CONN_HOLDER *current_conn_holder;
+  SPIDER_FIELD_HOLDER *first_field_holder;
+  SPIDER_FIELD_HOLDER *last_field_holder;
+  SPIDER_FIELD_HOLDER *current_field_holder;
+  SPIDER_FIELD_CHAIN *first_field_chain;
+  SPIDER_FIELD_CHAIN *last_field_chain;
+  SPIDER_FIELD_CHAIN *current_field_chain;
+  Field **first_field_ptr;
+  Field **current_field_ptr;
+public:
+  spider_fields();
+  virtual ~spider_fields();
+  void add_dbton_id(
+    uint dbton_id_arg
+  );
+  void set_pos_to_first_dbton_id();
+  uint get_next_dbton_id();
+  int make_link_idx_chain(
+    int link_status
+  );
+  SPIDER_LINK_IDX_CHAIN *create_link_idx_chain();
+  void set_pos_to_first_link_idx_chain();
+  SPIDER_LINK_IDX_CHAIN *get_next_link_idx_chain();
+  SPIDER_LINK_IDX_HOLDER *get_dup_link_idx_holder(
+    SPIDER_TABLE_LINK_IDX_HOLDER *table_link_idx_holder,
+    SPIDER_LINK_IDX_HOLDER *current
+  );
+  bool check_link_ok_chain();
+  bool is_first_link_ok_chain(
+    SPIDER_LINK_IDX_CHAIN *link_idx_chain_arg
+  );
+  int get_ok_link_idx();
+  void set_first_link_idx();
+  int add_link_idx(
+    SPIDER_CONN_HOLDER *conn_holder_arg,
+    ha_spider *spider_arg,
+    int link_idx
+  );
+  SPIDER_LINK_IDX_HOLDER *create_link_idx_holder();
+  void set_pos_to_first_table_on_link_idx_chain(
+    SPIDER_LINK_IDX_CHAIN *link_idx_chain_arg
+  );
+  SPIDER_LINK_IDX_HOLDER *get_next_table_on_link_idx_chain(
+    SPIDER_LINK_IDX_CHAIN *link_idx_chain_arg
+  );
+  SPIDER_CONN_HOLDER *add_conn(
+    SPIDER_CONN *conn_arg,
+    long access_balance
+  );
+  SPIDER_CONN_HOLDER *create_conn_holder();
+  void set_pos_to_first_conn_holder();
+  SPIDER_CONN_HOLDER *get_next_conn_holder();
+  bool has_conn_holder();
+  void clear_conn_holder_from_conn();
+  bool check_conn_same_conn(
+    SPIDER_CONN *conn_arg
+  );
+  bool remove_conn_if_not_checked();
+  void check_support_dbton(
+    uchar *dbton_bitmap
+  );
+  void choose_a_conn();
+  void free_conn_holder(
+    SPIDER_CONN_HOLDER *conn_holder_arg
+  );
+  SPIDER_TABLE_HOLDER *add_table(
+    ha_spider *spider_arg
+  );
+  bool all_query_fields_are_query_table_members();
+  int create_table_holder(
+    uint table_count_arg
+  );
+  void set_pos_to_first_table_holder();
+  SPIDER_TABLE_HOLDER *get_next_table_holder();
+  SPIDER_TABLE_HOLDER *get_table_holder(TABLE *table);
+  uint get_table_count();
+  int add_field(Field *field_arg);
+  SPIDER_FIELD_HOLDER *create_field_holder();
+  void set_pos_to_first_field_holder();
+  SPIDER_FIELD_HOLDER *get_next_field_holder();
+  SPIDER_FIELD_CHAIN *create_field_chain();
+  void set_pos_to_first_field_chain();
+  SPIDER_FIELD_CHAIN *get_next_field_chain();
+  void set_field_ptr(Field **field_arg);
+  Field **get_next_field_ptr();
+  int ping_table_mon_from_table(
+    SPIDER_LINK_IDX_CHAIN *link_idx_chain
+  );
+};
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+#define SPIDER_HS_UINT32_INFO dena::uint32_info
+#define SPIDER_HS_STRING_REF dena::string_ref
+#ifndef HANDLERSOCKET_MYSQL_UTIL
+#define SPIDER_HS_VECTOR std::vector
+class spider_db_hs_string_ref_buffer
+{
+  SPIDER_HS_VECTOR<SPIDER_HS_STRING_REF> hs_conds;
+public:
+  spider_db_hs_string_ref_buffer();
+  ~spider_db_hs_string_ref_buffer();
+  int init();
+  void clear();
+  int push_back(
+    SPIDER_HS_STRING_REF &cond
+  );
+  SPIDER_HS_STRING_REF *ptr();
+  uint size();
+};
+#else
+class spider_db_hs_string_ref_buffer
+{
+  bool                    hs_da_init;
+  DYNAMIC_ARRAY           hs_conds;
+  uint                    hs_conds_id;
+  const char              *hs_conds_func_name;
+  const char              *hs_conds_file_name;
+  ulong                   hs_conds_line_no;
+public:
+  spider_db_hs_string_ref_buffer();
+  ~spider_db_hs_string_ref_buffer();
+  int init();
+  void clear();
+  int push_back(
+    SPIDER_HS_STRING_REF &cond
+  );
+  SPIDER_HS_STRING_REF *ptr();
+  uint size();
+};
+#endif
+
+class spider_db_hs_str_buffer
+{
+  bool                    hs_da_init;
+  DYNAMIC_ARRAY           hs_conds;
+  uint                    hs_conds_id;
+  const char              *hs_conds_func_name;
+  const char              *hs_conds_file_name;
+  ulong                   hs_conds_line_no;
+public:
+  spider_db_hs_str_buffer();
+  ~spider_db_hs_str_buffer();
+  int init();
+  void clear();
+  spider_string *add(
+    uint *strs_pos,
+    const char *str,
+    uint str_len
+  );
+};
+
+#define SPIDER_DB_HS_STRING_REF_BUFFER spider_db_hs_string_ref_buffer
+#define SPIDER_DB_HS_STR_BUFFER spider_db_hs_str_buffer
+#endif
+
+struct st_spider_db_request_key
+{
+  ulonglong                spider_thread_id;
+  query_id_t               query_id;
+  void                     *handler;
+  ulonglong                request_id;
+  st_spider_db_request_key *next;
+};
+
+class spider_db_util
+{
+public:
+  uint dbton_id;
+  spider_db_util() {}
+  virtual ~spider_db_util() {}
+  virtual int append_name(
+    spider_string *str,
+    const char *name,
+    uint name_length
+  ) = 0;
+  virtual int append_name_with_charset(
+    spider_string *str,
+    const char *name,
+    uint name_length,
+    CHARSET_INFO *name_charset
+  ) = 0;
+  virtual int append_escaped_name(
+    spider_string *str,
+    const char *name,
+    uint name_length
+  ) = 0;
+  virtual int append_escaped_name_with_charset(
+    spider_string *str,
+    const char *name,
+    uint name_length,
+    CHARSET_INFO *name_charset
+  ) = 0;
+  virtual bool is_name_quote(
+    const char head_code
+  ) = 0;
+  virtual int append_escaped_name_quote(
+    spider_string *str
+  ) = 0;
+  virtual int append_column_value(
+    ha_spider *spider,
+    spider_string *str,
+    Field *field,
+    const uchar *new_ptr,
+    CHARSET_INFO *access_charset
+  ) = 0;
+  virtual int append_trx_isolation(
+    spider_string *str,
+    int trx_isolation
+  ) = 0;
+  virtual int append_autocommit(
+    spider_string *str,
+    bool autocommit
+  ) = 0;
+  virtual int append_sql_log_off(
+    spider_string *str,
+    bool sql_log_off
+  ) = 0;
+  virtual int append_wait_timeout(
+    spider_string *str,
+    int wait_timeout
+  ) = 0;
+  virtual int append_sql_mode(
+    spider_string *str,
+    sql_mode_t sql_mode
+  ) = 0;
+  virtual int append_time_zone(
+    spider_string *str,
+    Time_zone *time_zone
+  ) = 0;
+  virtual int append_loop_check(
+    spider_string *str,
+    SPIDER_CONN *conn
+  );
+  virtual int append_start_transaction(
+    spider_string *str
+  ) = 0;
+  virtual int append_xa_start(
+    spider_string *str,
+    XID *xid
+  ) = 0;
+  virtual int append_lock_table_head(
+    spider_string *str
+  ) = 0;
+  virtual int append_lock_table_body(
+    spider_string *str,
+    const char *db_name,
+    uint db_name_length,
+    CHARSET_INFO *db_name_charset,
+    const char *table_name,
+    uint table_name_length,
+    CHARSET_INFO *table_name_charset,
+    int lock_type
+  ) = 0;
+  virtual int append_lock_table_tail(
+    spider_string *str
+  ) = 0;
+  virtual int append_unlock_table(
+    spider_string *str
+  ) = 0;
+  virtual int open_item_func(
+    Item_func *item_func,
+    ha_spider *spider,
+    spider_string *str,
+    const char *alias,
+    uint alias_length,
+    bool use_fields,
+    spider_fields *fields
+  ) = 0;
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  virtual int open_item_sum_func(
+    Item_sum *item_sum,
+    ha_spider *spider,
+    spider_string *str,
+    const char *alias,
+    uint alias_length,
+    bool use_fields,
+    spider_fields *fields
+  ) = 0;
+#endif
+  virtual int append_escaped_util(
+    spider_string *to,
+    String *from
+  ) = 0;
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+  virtual int append_from_and_tables(
+    ha_spider *spider,
+    spider_fields *fields,
+    spider_string *str,
+    TABLE_LIST *table_list,
+    uint table_count
+  ) = 0;
+  virtual int reappend_tables(
+    spider_fields *fields,
+    SPIDER_LINK_IDX_CHAIN *link_idx_chain,
+    spider_string *str
+  ) = 0;
+  virtual int append_where(
+    spider_string *str
+  ) = 0;
+  virtual int append_having(
+    spider_string *str
+  ) = 0;
+#endif
+  virtual bool tables_on_different_db_are_joinable();
+  virtual bool socket_has_default_value();
+  virtual bool database_has_default_value();
+  virtual bool append_charset_name_before_string();
+  virtual uint limit_mode();
+};
+
+class spider_db_row
+{
+public:
+  uint dbton_id;
+  SPIDER_DB_ROW *next_pos;
+  spider_db_row(uint in_dbton_id) : dbton_id(in_dbton_id), next_pos(NULL) {}
+  virtual ~spider_db_row() {}
+  virtual int store_to_field(
+    Field *field,
+    CHARSET_INFO *access_charset
+  ) = 0;
+  virtual int append_to_str(
+    spider_string *str
+  ) = 0;
+  virtual int append_escaped_to_str(
+    spider_string *str,
+    uint dbton_id
+  ) = 0;
+  virtual void first() = 0;
+  virtual void next() = 0;
+  virtual bool is_null() = 0;
+  virtual int val_int() = 0;
+  virtual double val_real() = 0;
+  virtual my_decimal *val_decimal(
+    my_decimal *decimal_value,
+    CHARSET_INFO *access_charset
+  ) = 0;
+  virtual SPIDER_DB_ROW *clone() = 0;
+  virtual int store_to_tmp_table(
+    TABLE *tmp_table,
+    spider_string *str
+  ) = 0;
+  virtual uint get_byte_size() = 0;
+};
+
+class spider_db_result_buffer
+{
+public:
+  spider_db_result_buffer() {}
+  virtual ~spider_db_result_buffer() {}
+  virtual void clear() = 0;
+  virtual bool check_size(
+    longlong size
+  ) = 0;
+};
+
+class spider_db_result
+{
+public:
+  SPIDER_DB_CONN *db_conn;
+  uint           dbton_id;
+  spider_db_result(SPIDER_DB_CONN *in_db_conn);
+  virtual ~spider_db_result() {}
+  virtual void set_limit(longlong value) {}
+  virtual bool has_result() = 0;
+  virtual void free_result() = 0;
+  virtual SPIDER_DB_ROW *current_row() = 0;
+  virtual SPIDER_DB_ROW *fetch_row() = 0;
+  virtual SPIDER_DB_ROW *fetch_row_from_result_buffer(
+    spider_db_result_buffer *spider_res_buf
+  ) = 0;
+  virtual SPIDER_DB_ROW *fetch_row_from_tmp_table(
+    TABLE *tmp_table
+  ) = 0;
+  virtual int fetch_table_status(
+    int mode,
+    ha_statistics &stat
+  ) = 0;
+  virtual int fetch_table_records(
+    int mode,
+    ha_rows &records
+  ) = 0;
+#ifdef HA_HAS_CHECKSUM_EXTENDED
+  virtual int fetch_table_checksum(
+    ha_spider *spider
+  );
+#endif
+  virtual int fetch_table_cardinality(
+    int mode,
+    TABLE *table,
+    longlong *cardinality,
+    uchar *cardinality_upd,
+    int bitmap_size
+  ) = 0;
+  virtual int fetch_table_mon_status(
+    int &status
+  ) = 0;
+  virtual longlong num_rows() = 0;
+  virtual uint num_fields() = 0;
+  virtual void move_to_pos(
+    longlong pos
+  ) = 0;
+  virtual int get_errno() = 0;
+#ifdef SPIDER_HAS_DISCOVER_TABLE_STRUCTURE
+  virtual int fetch_columns_for_discover_table_structure(
+    spider_string *str,
+    CHARSET_INFO *access_charset
+  ) = 0;
+  virtual int fetch_index_for_discover_table_structure(
+    spider_string *str,
+    CHARSET_INFO *access_charset
+  ) = 0;
+  virtual int fetch_table_for_discover_table_structure(
+    spider_string *str,
+    SPIDER_SHARE *spider_share,
+    CHARSET_INFO *access_charset
+  ) = 0;
+#endif
+  virtual uint limit_mode();
+};
+
+class spider_db_conn
+{
+public:
+  SPIDER_CONN    *conn;
+  uint           dbton_id;
+  spider_db_conn(
+    SPIDER_CONN *in_conn
+  );
+  virtual ~spider_db_conn() {}
+  virtual int init() = 0;
+  virtual void set_limit(longlong value) {}
+  virtual bool is_connected() = 0;
+  virtual void bg_connect() = 0;
+  virtual int connect(
+    char *tgt_host,
+    char *tgt_username,
+    char *tgt_password,
+    long tgt_port,
+    char *tgt_socket,
+    char *server_name,
+    int connect_retry_count,
+    longlong connect_retry_interval
+  ) = 0;
+  virtual int ping() = 0;
+  virtual void bg_disconnect() = 0;
+  virtual void disconnect() = 0;
+  virtual int set_net_timeout() = 0;
+  virtual int exec_query(
+    const char *query,
+    uint length,
+    int quick_mode
+  ) = 0;
+  virtual int get_errno() = 0;
+  virtual const char *get_error() = 0;
+  virtual bool is_server_gone_error(
+    int error_num
+  ) = 0;
+  virtual bool is_dup_entry_error(
+    int error_num
+  ) = 0;
+  virtual bool is_xa_nota_error(
+    int error_num
+  ) = 0;
+  virtual spider_db_result *store_result(
+    spider_db_result_buffer **spider_res_buf,
+    st_spider_db_request_key *request_key,
+    int *error_num
+  ) = 0;
+  virtual spider_db_result *use_result(
+    ha_spider *spider,
+    st_spider_db_request_key *request_key,
+    int *error_num
+  ) = 0;
+  virtual int next_result() = 0;
+  virtual uint affected_rows() = 0;
+  virtual uint matched_rows() = 0;
+  virtual bool inserted_info(
+    spider_db_handler *handler,
+    ha_copy_info *copy_info
+  ) = 0;
+  virtual ulonglong last_insert_id() = 0;
+  virtual int set_character_set(
+    const char *csname
+  ) = 0;
+  virtual int select_db(
+    const char *dbname
+  ) = 0;
+  virtual int consistent_snapshot(
+    int *need_mon
+  ) = 0;
+  virtual bool trx_start_in_bulk_sql() = 0;
+  virtual int start_transaction(
+    int *need_mon
+  ) = 0;
+  virtual int commit(
+    int *need_mon
+  ) = 0;
+  virtual int rollback(
+    int *need_mon
+  ) = 0;
+  virtual bool xa_start_in_bulk_sql() = 0;
+  virtual int xa_start(
+    XID *xid,
+    int *need_mon
+  ) = 0;
+  virtual int xa_end(
+    XID *xid,
+    int *need_mon
+  ) = 0;
+  virtual int xa_prepare(
+    XID *xid,
+    int *need_mon
+  ) = 0;
+  virtual int xa_commit(
+    XID *xid,
+    int *need_mon
+  ) = 0;
+  virtual int xa_rollback(
+    XID *xid,
+    int *need_mon
+  ) = 0;
+  virtual bool set_trx_isolation_in_bulk_sql() = 0;
+  virtual int set_trx_isolation(
+    int trx_isolation,
+    int *need_mon
+  ) = 0;
+  virtual bool set_autocommit_in_bulk_sql() = 0;
+  virtual int set_autocommit(
+    bool autocommit,
+    int *need_mon
+  ) = 0;
+  virtual bool set_sql_log_off_in_bulk_sql() = 0;
+  virtual int set_sql_log_off(
+    bool sql_log_off,
+    int *need_mon
+  ) = 0;
+  virtual bool set_wait_timeout_in_bulk_sql() = 0;
+  virtual int set_wait_timeout(
+    int wait_timeout,
+    int *need_mon
+  ) = 0;
+  virtual bool set_sql_mode_in_bulk_sql() = 0;
+  virtual int set_sql_mode(
+    sql_mode_t sql_mode,
+    int *need_mon
+  ) = 0;
+  virtual bool set_time_zone_in_bulk_sql() = 0;
+  virtual int set_time_zone(
+    Time_zone *time_zone,
+    int *need_mon
+  ) = 0;
+  virtual bool set_loop_check_in_bulk_sql();
+  virtual int set_loop_check(
+    int *need_mon
+  );
+  virtual int fin_loop_check();
+  virtual int show_master_status(
+    SPIDER_TRX *trx,
+    SPIDER_SHARE *share,
+    int all_link_idx,
+    int *need_mon,
+    TABLE *table,
+    spider_string *str,
+    int mode,
+    SPIDER_DB_RESULT **res1,
+    SPIDER_DB_RESULT **res2
+  ) = 0;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  virtual int append_sql(
+    char *sql,
+    ulong sql_length,
+    st_spider_db_request_key *request_key
+  ) = 0;
+  virtual int append_open_handler(
+    uint handler_id,
+    const char *db_name,
+    const char *table_name,
+    const char *index_name,
+    const char *sql,
+    st_spider_db_request_key *request_key
+  ) = 0;
+  virtual int append_select(
+    uint handler_id,
+    spider_string *sql,
+    SPIDER_DB_HS_STRING_REF_BUFFER *keys,
+    int limit,
+    int skip,
+    st_spider_db_request_key *request_key
+  ) = 0;
+  virtual int append_insert(
+    uint handler_id,
+    SPIDER_DB_HS_STRING_REF_BUFFER *upds,
+    st_spider_db_request_key *request_key
+  ) = 0;
+  virtual int append_update(
+    uint handler_id,
+    spider_string *sql,
+    SPIDER_DB_HS_STRING_REF_BUFFER *keys,
+    SPIDER_DB_HS_STRING_REF_BUFFER *upds,
+    int limit,
+    int skip,
+    bool increment,
+    bool decrement,
+    st_spider_db_request_key *request_key
+  ) = 0;
+  virtual int append_delete(
+    uint handler_id,
+    spider_string *sql,
+    SPIDER_DB_HS_STRING_REF_BUFFER *keys,
+    int limit,
+    int skip,
+    st_spider_db_request_key *request_key
+  ) = 0;
+  virtual void reset_request_queue() = 0;
+#endif
+  virtual size_t escape_string(
+    char *to,
+    const char *from,
+    size_t from_length
+  ) = 0;
+  virtual bool have_lock_table_list() = 0;
+  virtual int append_lock_tables(
+    spider_string *str
+  ) = 0;
+  virtual int append_unlock_tables(
+    spider_string *str
+  ) = 0;
+  virtual uint get_lock_table_hash_count() = 0;
+  virtual void reset_lock_table_hash() = 0;
+  virtual uint get_opened_handler_count() = 0;
+  virtual void reset_opened_handler() = 0;
+  virtual void set_dup_key_idx(
+    ha_spider *spider,
+    int link_idx
+  ) = 0;
+  virtual bool cmp_request_key_to_snd(
+    st_spider_db_request_key *request_key
+  ) = 0;
+  virtual uint limit_mode();
+};
+
+class spider_db_share
+{
+protected:
+  uint               mem_calc_id;
+  const char         *mem_calc_func_name;
+  const char         *mem_calc_file_name;
+  ulong              mem_calc_line_no;
+public:
+  uint dbton_id;
+  st_spider_share *spider_share;
+  spider_db_share(
+    st_spider_share *share,
+    uint dbton_id
+  ) : dbton_id(dbton_id), spider_share(share) {}
+  virtual ~spider_db_share() {}
+  virtual int init() = 0;
+  virtual uint get_column_name_length(
+    uint field_index
+  ) = 0;
+  virtual int append_column_name(
+    spider_string *str,
+    uint field_index
+  ) = 0;
+  virtual int append_column_name_with_alias(
+    spider_string *str,
+    uint field_index,
+    const char *alias,
+    uint alias_length
+  ) = 0;
+  virtual bool need_change_db_table_name() = 0;
+#ifdef SPIDER_HAS_DISCOVER_TABLE_STRUCTURE
+  virtual int discover_table_structure(
+    SPIDER_TRX *trx,
+    SPIDER_SHARE *spider_share,
+    spider_string *str
+  ) = 0;
+#endif
+#ifdef HA_HAS_CHECKSUM_EXTENDED
+  virtual bool checksum_support();
+#endif
+};
+
+class spider_db_handler
+{
+protected:
+  uint               mem_calc_id;
+  const char         *mem_calc_func_name;
+  const char         *mem_calc_file_name;
+  ulong              mem_calc_line_no;
+public:
+  uint dbton_id;
+  ha_spider *spider;
+  spider_db_share *db_share;
+  int first_link_idx;
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+  SPIDER_LINK_IDX_CHAIN *link_idx_chain;
+#endif
+  bool strict_group_by;
+  bool no_where_cond;
+  spider_db_handler(ha_spider *spider, spider_db_share *db_share) :
+    dbton_id(db_share->dbton_id), spider(spider), db_share(db_share),
+    first_link_idx(-1) {}
+  virtual ~spider_db_handler() {}
+  virtual int init() = 0;
+  virtual int append_index_hint(
+    spider_string *str,
+    int link_idx,
+    ulong sql_type
+    ) = 0;
+  virtual int append_table_name_with_adjusting(
+    spider_string *str,
+    int link_idx,
+    ulong sql_type
+  ) = 0;
+  virtual int append_tmp_table_and_sql_for_bka(
+    const key_range *start_key
+  ) = 0;
+  virtual int reuse_tmp_table_and_sql_for_bka() = 0;
+  virtual int append_union_table_and_sql_for_bka(
+    const key_range *start_key
+  ) = 0;
+  virtual int reuse_union_table_and_sql_for_bka() = 0;
+  virtual int append_insert_for_recovery(
+    ulong sql_type,
+    int link_idx
+  ) = 0;
+  virtual int append_update(
+    const TABLE *table,
+    my_ptrdiff_t ptr_diff
+  ) = 0;
+  virtual int append_update(
+    const TABLE *table,
+    my_ptrdiff_t ptr_diff,
+    int link_idx
+  ) = 0;
+  virtual int append_delete(
+    const TABLE *table,
+    my_ptrdiff_t ptr_diff
+  ) = 0;
+  virtual int append_delete(
+    const TABLE *table,
+    my_ptrdiff_t ptr_diff,
+    int link_idx
+  ) = 0;
+  virtual int append_insert_part() = 0;
+  virtual int append_update_part() = 0;
+  virtual int append_delete_part() = 0;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  virtual int append_increment_update_set_part() = 0;
+#endif
+#endif
+  virtual int append_update_set_part() = 0;
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  virtual int append_direct_update_set_part() = 0;
+  virtual int append_dup_update_pushdown_part(
+    const char *alias,
+    uint alias_length
+  ) = 0;
+  virtual int append_update_columns_part(
+    const char *alias,
+    uint alias_length
+  ) = 0;
+  virtual int check_update_columns_part() = 0;
+#endif
+  virtual int append_select_part(
+    ulong sql_type
+  ) = 0;
+  virtual int append_select(
+    spider_string *str,
+    ulong sql_type
+  ) = 0;
+  virtual int append_table_select_part(
+    ulong sql_type
+  ) = 0;
+  virtual int append_key_select_part(
+    ulong sql_type,
+    uint idx
+  ) = 0;
+  virtual int append_minimum_select_part(
+    ulong sql_type
+  ) = 0;
+  virtual int append_hint_after_table_part(
+    ulong sql_type
+  ) = 0;
+  virtual void set_where_pos(
+    ulong sql_type
+  ) = 0;
+  virtual void set_where_to_pos(
+    ulong sql_type
+  ) = 0;
+  virtual int check_item_type(
+    Item *item
+  ) = 0;
+  virtual int append_values_connector_part(
+    ulong sql_type
+  ) = 0;
+  virtual int append_values_terminator_part(
+    ulong sql_type
+  ) = 0;
+  virtual int append_union_table_connector_part(
+    ulong sql_type
+  ) = 0;
+  virtual int append_union_table_terminator_part(
+    ulong sql_type
+  ) = 0;
+  virtual int append_key_column_values_part(
+    const key_range *start_key,
+    ulong sql_type
+  ) = 0;
+  virtual int append_key_column_values_with_name_part(
+    const key_range *start_key,
+    ulong sql_type
+  ) = 0;
+  virtual int append_key_where_part(
+    const key_range *start_key,
+    const key_range *end_key,
+    ulong sql_type
+  ) = 0;
+  virtual int append_is_null_part(
+    ulong sql_type,
+    KEY_PART_INFO *key_part,
+    const key_range *key,
+    const uchar **ptr,
+    bool key_eq,
+    bool tgt_final
+  ) = 0;
+  virtual int append_where_terminator_part(
+    ulong sql_type,
+    bool set_order,
+    int key_count
+  ) = 0;
+  virtual int append_match_where_part(
+    ulong sql_type
+  ) = 0;
+  virtual int append_condition_part(
+    const char *alias,
+    uint alias_length,
+    ulong sql_type,
+    bool test_flg
+  ) = 0;
+  virtual int append_match_select_part(
+    ulong sql_type,
+    const char *alias,
+    uint alias_length
+  ) = 0;
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  virtual int append_sum_select_part(
+    ulong sql_type,
+    const char *alias,
+    uint alias_length
+  ) = 0;
+#endif
+  virtual void set_order_pos(
+    ulong sql_type
+  ) = 0;
+  virtual void set_order_to_pos(
+    ulong sql_type
+  ) = 0;
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  virtual int append_group_by_part(
+    const char *alias,
+    uint alias_length,
+    ulong sql_type
+  ) = 0;
+#endif
+  virtual int append_key_order_for_merge_with_alias_part(
+    const char *alias,
+    uint alias_length,
+    ulong sql_type
+  ) = 0;
+  virtual int append_key_order_for_direct_order_limit_with_alias_part(
+    const char *alias,
+    uint alias_length,
+    ulong sql_type
+  ) = 0;
+  virtual int append_key_order_with_alias_part(
+    const char *alias,
+    uint alias_length,
+    ulong sql_type
+  ) = 0;
+  virtual int append_limit_part(
+    longlong offset,
+    longlong limit,
+    ulong sql_type
+  ) = 0;
+  virtual int reappend_limit_part(
+    longlong offset,
+    longlong limit,
+    ulong sql_type
+  ) = 0;
+  virtual int append_select_lock_part(
+    ulong sql_type
+  ) = 0;
+  virtual int append_union_all_start_part(
+    ulong sql_type
+  ) = 0;
+  virtual int append_union_all_part(
+    ulong sql_type
+  ) = 0;
+  virtual int append_union_all_end_part(
+    ulong sql_type
+  ) = 0;
+  virtual int append_multi_range_cnt_part(
+    ulong sql_type,
+    uint multi_range_cnt,
+    bool with_comma
+  ) = 0;
+  virtual int append_multi_range_cnt_with_name_part(
+    ulong sql_type,
+    uint multi_range_cnt
+  ) = 0;
+  virtual int append_open_handler_part(
+    ulong sql_type,
+    uint handler_id,
+    SPIDER_CONN *conn,
+    int link_idx
+  ) = 0;
+  virtual int append_close_handler_part(
+    ulong sql_type,
+    int link_idx
+  ) = 0;
+  virtual int append_insert_terminator_part(
+    ulong sql_type
+  ) = 0;
+  virtual int append_insert_values_part(
+    ulong sql_type
+  ) = 0;
+  virtual int append_into_part(
+    ulong sql_type
+  ) = 0;
+  virtual void set_insert_to_pos(
+    ulong sql_type
+  ) = 0;
+  virtual int append_from_part(
+    ulong sql_type,
+    int link_idx
+  ) = 0;
+  virtual int append_delete_all_rows_part(
+    ulong sql_type
+  ) = 0;
+  virtual int append_explain_select_part(
+    const key_range *start_key,
+    const key_range *end_key,
+    ulong sql_type,
+    int link_idx
+  ) = 0;
+  virtual bool is_sole_projection_field(
+    uint16 field_index
+  ) = 0;
+  virtual bool is_bulk_insert_exec_period(
+    bool bulk_end
+  ) = 0;
+  virtual bool sql_is_filled_up(
+    ulong sql_type
+  ) = 0;
+  virtual bool sql_is_empty(
+    ulong sql_type
+  ) = 0;
+  virtual bool support_multi_split_read() = 0;
+  virtual bool support_bulk_update() = 0;
+  virtual int bulk_tmp_table_insert() = 0;
+  virtual int bulk_tmp_table_insert(
+    int link_idx
+  ) = 0;
+  virtual int bulk_tmp_table_end_bulk_insert() = 0;
+  virtual int bulk_tmp_table_rnd_init() = 0;
+  virtual int bulk_tmp_table_rnd_next() = 0;
+  virtual int bulk_tmp_table_rnd_end() = 0;
+  virtual bool need_copy_for_update(
+    int link_idx
+  ) = 0;
+  virtual bool bulk_tmp_table_created() = 0;
+  virtual int mk_bulk_tmp_table_and_bulk_start() = 0;
+  virtual void rm_bulk_tmp_table() = 0;
+  virtual int insert_lock_tables_list(
+    SPIDER_CONN *conn,
+    int link_idx
+  ) = 0;
+  virtual int append_lock_tables_list(
+    SPIDER_CONN *conn,
+    int link_idx,
+    int *appended
+  ) = 0;
+  virtual int realloc_sql(
+    ulong *realloced
+  ) = 0;
+  virtual int reset_sql(
+    ulong sql_type
+  ) = 0;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  virtual int reset_keys(
+    ulong sql_type
+  ) = 0;
+  virtual int reset_upds(
+    ulong sql_type
+  ) = 0;
+  virtual int reset_strs(
+    ulong sql_type
+  ) = 0;
+  virtual int reset_strs_pos(
+    ulong sql_type
+  ) = 0;
+  virtual int push_back_upds(
+    SPIDER_HS_STRING_REF &info
+  ) = 0;
+#endif
+  virtual bool need_lock_before_set_sql_for_exec(
+    ulong sql_type
+  ) = 0;
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+  virtual int set_sql_for_exec(
+    ulong sql_type,
+    int link_idx,
+    SPIDER_LINK_IDX_CHAIN *link_idx_chain
+  ) = 0;
+#endif
+  virtual int set_sql_for_exec(
+    ulong sql_type,
+    int link_idx
+  ) = 0;
+  virtual int set_sql_for_exec(
+    spider_db_copy_table *tgt_ct,
+    ulong sql_type
+  ) = 0;
+  virtual int execute_sql(
+    ulong sql_type,
+    SPIDER_CONN *conn,
+    int quick_mode,
+    int *need_mon
+  ) = 0;
+  virtual int reset() = 0;
+  virtual int sts_mode_exchange(
+    int sts_mode
+  ) = 0;
+  virtual int show_table_status(
+    int link_idx,
+    int sts_mode,
+    uint flag
+  ) = 0;
+  virtual int crd_mode_exchange(
+    int crd_mode
+  ) = 0;
+  virtual int show_index(
+    int link_idx,
+    int crd_mode
+  ) = 0;
+  virtual int show_records(
+    int link_idx
+  ) = 0;
+#ifdef HA_HAS_CHECKSUM_EXTENDED
+  virtual int checksum_table(
+    int link_idx
+  );
+#endif
+  virtual int show_last_insert_id(
+    int link_idx,
+    ulonglong &last_insert_id
+  ) = 0;
+  virtual ha_rows explain_select(
+    const key_range *start_key,
+    const key_range *end_key,
+    int link_idx
+  ) = 0;
+  virtual int lock_tables(
+    int link_idx
+  ) = 0;
+  virtual int unlock_tables(
+    int link_idx
+  ) = 0;
+  virtual int disable_keys(
+    SPIDER_CONN *conn,
+    int link_idx
+  ) = 0;
+  virtual int enable_keys(
+    SPIDER_CONN *conn,
+    int link_idx
+  ) = 0;
+  virtual int check_table(
+    SPIDER_CONN *conn,
+    int link_idx,
+    HA_CHECK_OPT* check_opt
+  ) = 0;
+  virtual int repair_table(
+    SPIDER_CONN *conn,
+    int link_idx,
+    HA_CHECK_OPT* check_opt
+  ) = 0;
+  virtual int analyze_table(
+    SPIDER_CONN *conn,
+    int link_idx
+  ) = 0;
+  virtual int optimize_table(
+    SPIDER_CONN *conn,
+    int link_idx
+  ) = 0;
+  virtual int flush_tables(
+    SPIDER_CONN *conn,
+    int link_idx,
+    bool lock
+  ) = 0;
+  virtual int flush_logs(
+    SPIDER_CONN *conn,
+    int link_idx
+  ) = 0;
+  virtual int insert_opened_handler(
+    SPIDER_CONN *conn,
+    int link_idx
+  ) = 0;
+  virtual int delete_opened_handler(
+    SPIDER_CONN *conn,
+    int link_idx
+  ) = 0;
+  virtual int sync_from_clone_source(
+    spider_db_handler *dbton_hdl
+  ) = 0;
+  virtual bool support_use_handler(
+    int use_handler
+  ) = 0;
+  virtual bool minimum_select_bit_is_set(
+    uint field_index
+  ) = 0;
+  virtual void copy_minimum_select_bitmap(
+    uchar *bitmap
+  ) = 0;
+  virtual int init_union_table_name_pos() = 0;
+  virtual int set_union_table_name_pos() = 0;
+  virtual int reset_union_table_name(
+    spider_string *str,
+    int link_idx,
+    ulong sql_type
+  ) = 0;
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+  virtual int append_from_and_tables_part(
+    spider_fields *fields,
+    ulong sql_type
+  ) = 0;
+  virtual int reappend_tables_part(
+    spider_fields *fields,
+    ulong sql_type
+  ) = 0;
+  virtual int append_where_part(
+    ulong sql_type
+  ) = 0;
+  virtual int append_having_part(
+    ulong sql_type
+  ) = 0;
+  virtual int append_item_type_part(
+    Item *item,
+    const char *alias,
+    uint alias_length,
+    bool use_fields,
+    spider_fields *fields,
+    ulong sql_type
+  ) = 0;
+  virtual int append_list_item_select_part(
+    List<Item> *select,
+    const char *alias,
+    uint alias_length,
+    bool use_fields,
+    spider_fields *fields,
+    ulong sql_type
+  ) = 0;
+  virtual int append_group_by_part(
+    ORDER *order,
+    const char *alias,
+    uint alias_length,
+    bool use_fields,
+    spider_fields *fields,
+    ulong sql_type
+  ) = 0;
+  virtual int append_order_by_part(
+    ORDER *order,
+    const char *alias,
+    uint alias_length,
+    bool use_fields,
+    spider_fields *fields,
+    ulong sql_type
+  ) = 0;
+#endif
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  virtual bool check_direct_update(
+    st_select_lex *select_lex,
+    longlong select_limit,
+    longlong offset_limit
+  );
+  virtual bool check_direct_delete(
+    st_select_lex *select_lex,
+    longlong select_limit,
+    longlong offset_limit
+  );
+#endif
+};
+
+class spider_db_copy_table
+{
+public:
+  uint dbton_id;
+  spider_db_share *db_share;
+  spider_db_copy_table(spider_db_share *db_share) :
+    dbton_id(db_share->dbton_id), db_share(db_share) {}
+  virtual ~spider_db_copy_table() {}
+  virtual int init() = 0;
+  virtual void set_sql_charset(
+    CHARSET_INFO *cs
+  ) = 0;
+  virtual int append_select_str() = 0;
+  virtual int append_insert_str(
+    int insert_flg
+  ) = 0;
+  virtual int append_table_columns(
+    TABLE_SHARE *table_share
+  ) = 0;
+  virtual int append_from_str() = 0;
+  virtual int append_table_name(
+    int link_idx
+  ) = 0;
+  virtual void set_sql_pos() = 0;
+  virtual void set_sql_to_pos() = 0;
+  virtual int append_copy_where(
+    spider_db_copy_table *source_ct,
+    KEY *key_info,
+    ulong *last_row_pos,
+    ulong *last_lengths
+  ) = 0;
+  virtual int append_key_order_str(
+    KEY *key_info,
+    int start_pos,
+    bool desc_flg
+  ) = 0;
+  virtual int append_limit(
+    longlong offset,
+    longlong limit
+  ) = 0;
+  virtual int append_into_str() = 0;
+  virtual int append_open_paren_str() = 0;
+  virtual int append_values_str() = 0;
+  virtual int append_select_lock_str(
+    int lock_mode
+  ) = 0;
+  virtual int exec_query(
+    SPIDER_CONN *conn,
+    int quick_mode,
+    int *need_mon
+  ) = 0;
+  virtual int copy_rows(
+    TABLE *table,
+    SPIDER_DB_ROW *row,
+    ulong **last_row_pos,
+    ulong **last_lengths
+  ) = 0;
+  virtual int copy_rows(
+    TABLE *table,
+    SPIDER_DB_ROW *row
+  ) = 0;
+  virtual int append_insert_terminator() = 0;
+  virtual int copy_insert_values(
+    spider_db_copy_table *source_ct
+  ) = 0;
+};
+
+enum spider_db_access_type
+{
+  SPIDER_DB_ACCESS_TYPE_SQL,
+  SPIDER_DB_ACCESS_TYPE_NOSQL
+};
+
+#define SPIDER_MATURITY_UNKNOWN      0
+#define SPIDER_MATURITY_EXPERIMENTAL 1
+#define SPIDER_MATURITY_ALPHA        2
+#define SPIDER_MATURITY_BETA         3
+#define SPIDER_MATURITY_GAMMA        4
+#define SPIDER_MATURITY_STABLE       5
+
+static const LEX_CSTRING maturity_name[] =
+{
+  { STRING_WITH_LEN("Unknown") },
+  { STRING_WITH_LEN("Experimental") },
+  { STRING_WITH_LEN("Alpha") },
+  { STRING_WITH_LEN("Beta") },
+  { STRING_WITH_LEN("Gamma") },
+  { STRING_WITH_LEN("Stable") }
+};
+
+typedef struct st_spider_dbton
+{
+  uint dbton_id;
+  const char *wrapper;
+  enum spider_db_access_type db_access_type;
+  int (*init)();
+  int (*deinit)();
+  spider_db_share *(*create_db_share)(st_spider_share *share);
+  spider_db_handler *(*create_db_handler)(ha_spider *spider,
+    spider_db_share *db_share);
+  spider_db_copy_table *(*create_db_copy_table)(
+    spider_db_share *db_share);
+  SPIDER_DB_CONN *(*create_db_conn)(SPIDER_CONN *conn);
+  bool (*support_direct_join)();
+  spider_db_util *db_util;
+  const char *descr;
+  const char *version_info;
+  unsigned int maturity;
+} SPIDER_DBTON;
+
+typedef struct st_spider_position
+{
+  SPIDER_DB_ROW          *row;
+  uint                   pos_mode;
+  bool                   use_position;
+  bool                   mrr_with_cnt;
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  bool                   direct_aggregate;
+#endif
+  uint                   sql_kind;
+  uchar                  *position_bitmap;
+  st_spider_ft_info      *ft_first;
+  st_spider_ft_info      *ft_current;
+  my_off_t               tmp_tbl_pos;
+  SPIDER_RESULT          *result;
+} SPIDER_POSITION;
+
+typedef struct st_spider_condition
+{
+  COND                   *cond;
+  st_spider_condition    *next;
+} SPIDER_CONDITION;
+
+typedef struct st_spider_result
+{
+  uint                 dbton_id;
+  SPIDER_DB_RESULT     *result;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  volatile
+#endif
+    st_spider_result   *prev;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  volatile
+#endif
+    st_spider_result   *next;
+  SPIDER_POSITION      *first_position; /* for quick mode */
+  int                  pos_page_size; /* for quick mode */
+  longlong             record_num;
+  bool                 finish_flg;
+  bool                 use_position;
+  bool                 first_pos_use_position;
+  bool                 tmp_tbl_use_position;
+  uint                 field_count; /* for quick mode */
+  TABLE                *result_tmp_tbl;
+  TMP_TABLE_PARAM      result_tmp_tbl_prm;
+  THD                  *result_tmp_tbl_thd;
+  uint                 result_tmp_tbl_inited;
+  SPIDER_DB_ROW        *tmp_tbl_row;
+} SPIDER_RESULT;
+
+typedef struct st_spider_result_list
+{
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  volatile
+#endif
+    SPIDER_RESULT        *first;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  volatile
+#endif
+    SPIDER_RESULT        *last;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  volatile
+#endif
+    SPIDER_RESULT         *current;
+  KEY                     *key_info;
+  int                     key_order;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  ulonglong               hs_upd_rows;
+  SPIDER_DB_RESULT        *hs_result;
+  SPIDER_DB_RESULT_BUFFER *hs_result_buf;
+  bool                    hs_has_result;
+  SPIDER_DB_CONN          *hs_conn;
+#endif
+#ifdef HA_CAN_BULK_ACCESS
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  uchar                   *hs_r_bulk_open_index;
+  uchar                   *hs_w_bulk_open_index;
+#endif
+#endif
+  spider_string           *sqls;
+  int                     ha_read_kind;
+  bool                    have_sql_kind_backup;
+  uint                    *sql_kind_backup;
+  uint                    sql_kinds_backup;
+  bool                    use_union;
+  bool                    use_both_key;
+  const key_range         *end_key;
+  spider_string           *insert_sqls;
+  spider_string           *update_sqls;
+  TABLE                   **upd_tmp_tbls;
+  TMP_TABLE_PARAM         *upd_tmp_tbl_prms;
+  bool                    tmp_table_join;
+  uchar                   *tmp_table_join_first;
+  bool                    tmp_tables_created;
+  uchar                   *tmp_table_created;
+  bool                    tmp_table_join_break_after_get_next;
+  key_part_map            tmp_table_join_key_part_map;
+  spider_string           *tmp_sqls;
+  bool                    tmp_reuse_sql;
+  bool                    sorted;
+  bool                    desc_flg;
+  longlong                current_row_num;
+  longlong                record_num;
+  bool                    finish_flg;
+  longlong                limit_num;
+  longlong                internal_offset;
+  longlong                internal_limit;
+  longlong                split_read;
+  int                     multi_split_read;
+  int                     max_order;
+  int                     quick_mode;
+  longlong                quick_page_size;
+  longlong                quick_page_byte;
+  int                     low_mem_read;
+  int                     bulk_update_mode;
+  int                     bulk_update_size;
+  spider_bulk_upd_start   bulk_update_start;
+  bool                    check_direct_order_limit;
+  bool                    direct_order_limit;
+  /* the limit_offeset, without where condition */
+  bool                    direct_limit_offset;
+  bool                    direct_distinct;
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  bool                    direct_aggregate;
+  bool                    snap_mrr_with_cnt;
+  bool                    snap_direct_aggregate;
+  SPIDER_DB_ROW           *snap_row;
+#endif
+  bool                    in_cmp_ref;
+  bool                    set_split_read;
+  bool                    insert_dup_update_pushdown;
+  longlong                split_read_base;
+  double                  semi_split_read;
+  longlong                semi_split_read_limit;
+  longlong                semi_split_read_base;
+  longlong                first_read;
+  longlong                second_read;
+  int                     set_split_read_count;
+  int                     *casual_read;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  /* 0:nomal 1:store 2:store end */
+  volatile
+#endif
+    int                   quick_phase;
+  bool                    keyread;
+  TABLE                   *table;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  volatile int            bgs_error;
+  bool                    bgs_error_with_message;
+  char                    bgs_error_msg[MYSQL_ERRMSG_SIZE];
+  volatile bool           bgs_working;
+  /* 0:not use bg 1:first read 2:second read 3:after second read */
+  volatile int            bgs_phase;
+  volatile longlong       bgs_first_read;
+  volatile longlong       bgs_second_read;
+  volatile longlong       bgs_split_read;
+  volatile
+#endif
+    SPIDER_RESULT         *bgs_current;
+  SPIDER_DB_ROW           *tmp_pos_row_first;
+} SPIDER_RESULT_LIST;
diff --git a/storage/spider/spd_db_mysql.cc b/storage/spider/spd_db_mysql.cc
new file mode 100644
index 00000000..57e3893d
--- /dev/null
+++ b/storage/spider/spd_db_mysql.cc
@@ -0,0 +1,17230 @@
+/* Copyright (C) 2012-2018 Kentoku Shiba
+   Copyright (c) 2020, MariaDB Corporation.
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+#define MYSQL_SERVER 1
+#include <my_global.h>
+#include "mysql_version.h"
+#include "spd_environ.h"
+#if MYSQL_VERSION_ID < 50500
+#include "mysql_priv.h"
+#include <mysql/plugin.h>
+#else
+#include "sql_priv.h"
+#include "probes_mysql.h"
+#include "sql_class.h"
+#include "sql_partition.h"
+#include "sql_analyse.h"
+#include "sql_base.h"
+#include "tztime.h"
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+#include "sql_select.h"
+#endif
+#endif
+#include "sql_common.h"
+#include <mysql.h>
+#include <errmsg.h>
+#include "spd_err.h"
+#include "spd_param.h"
+#include "spd_db_include.h"
+#include "spd_include.h"
+#include "spd_db_mysql.h"
+#include "ha_spider.h"
+#include "spd_conn.h"
+#include "spd_db_conn.h"
+#include "spd_malloc.h"
+#include "spd_sys_table.h"
+#include "spd_table.h"
+
+extern struct charset_info_st *spd_charset_utf8mb3_bin;
+extern bool volatile *spd_abort_loop;
+
+extern handlerton *spider_hton_ptr;
+extern pthread_mutex_t spider_open_conn_mutex;
+extern HASH spider_open_connections;
+extern HASH spider_ipport_conns;
+extern SPIDER_DBTON spider_dbton[SPIDER_DBTON_SIZE];
+extern const char spider_dig_upper[];
+extern const char **spd_mysqld_unix_port;
+extern uint *spd_mysqld_port;
+
+spider_db_mysql_util spider_db_mysql_utility;
+spider_db_mariadb_util spider_db_mariadb_utility;
+
+#define SPIDER_SQL_NAME_QUOTE_STR "`"
+#define SPIDER_SQL_NAME_QUOTE_LEN (sizeof(SPIDER_SQL_NAME_QUOTE_STR) - 1)
+static const char *name_quote_str = SPIDER_SQL_NAME_QUOTE_STR;
+
+#define SPIDER_SQL_ISO_READ_UNCOMMITTED_STR "set session transaction isolation level read uncommitted"
+#define SPIDER_SQL_ISO_READ_UNCOMMITTED_LEN sizeof(SPIDER_SQL_ISO_READ_UNCOMMITTED_STR) - 1
+#define SPIDER_SQL_ISO_READ_COMMITTED_STR "set session transaction isolation level read committed"
+#define SPIDER_SQL_ISO_READ_COMMITTED_LEN sizeof(SPIDER_SQL_ISO_READ_COMMITTED_STR) - 1
+#define SPIDER_SQL_ISO_REPEATABLE_READ_STR "set session transaction isolation level repeatable read"
+#define SPIDER_SQL_ISO_REPEATABLE_READ_LEN sizeof(SPIDER_SQL_ISO_REPEATABLE_READ_STR) - 1
+#define SPIDER_SQL_ISO_SERIALIZABLE_STR "set session transaction isolation level serializable"
+#define SPIDER_SQL_ISO_SERIALIZABLE_LEN sizeof(SPIDER_SQL_ISO_SERIALIZABLE_STR) - 1
+
+#define SPIDER_SQL_START_CONSISTENT_SNAPSHOT_STR "start transaction with consistent snapshot"
+#define SPIDER_SQL_START_CONSISTENT_SNAPSHOT_LEN sizeof(SPIDER_SQL_START_CONSISTENT_SNAPSHOT_STR) - 1
+#define SPIDER_SQL_START_TRANSACTION_STR "start transaction"
+#define SPIDER_SQL_START_TRANSACTION_LEN sizeof(SPIDER_SQL_START_TRANSACTION_STR) - 1
+
+#define SPIDER_SQL_AUTOCOMMIT_OFF_STR "set session autocommit = 0"
+#define SPIDER_SQL_AUTOCOMMIT_OFF_LEN sizeof(SPIDER_SQL_AUTOCOMMIT_OFF_STR) - 1
+#define SPIDER_SQL_AUTOCOMMIT_ON_STR "set session autocommit = 1"
+#define SPIDER_SQL_AUTOCOMMIT_ON_LEN sizeof(SPIDER_SQL_AUTOCOMMIT_ON_STR) - 1
+
+#define SPIDER_SQL_SQL_LOG_OFF_STR "set session sql_log_off = 0"
+#define SPIDER_SQL_SQL_LOG_OFF_LEN sizeof(SPIDER_SQL_SQL_LOG_OFF_STR) - 1
+#define SPIDER_SQL_SQL_LOG_ON_STR "set session sql_log_off = 1"
+#define SPIDER_SQL_SQL_LOG_ON_LEN sizeof(SPIDER_SQL_SQL_LOG_ON_STR) - 1
+
+#define SPIDER_SQL_WAIT_TIMEOUT_STR "set session wait_timeout = "
+#define SPIDER_SQL_WAIT_TIMEOUT_LEN sizeof(SPIDER_SQL_WAIT_TIMEOUT_STR) - 1
+
+#define SPIDER_SQL_SQL_MODE_STR "set session sql_mode = '"
+#define SPIDER_SQL_SQL_MODE_LEN sizeof(SPIDER_SQL_SQL_MODE_STR) - 1
+
+#define SPIDER_SQL_TIME_ZONE_STR "set session time_zone = '"
+#define SPIDER_SQL_TIME_ZONE_LEN sizeof(SPIDER_SQL_TIME_ZONE_STR) - 1
+
+#define SPIDER_SQL_SET_USER_VAL_STR "set @`"
+#define SPIDER_SQL_SET_USER_VAL_LEN sizeof(SPIDER_SQL_SET_USER_VAL_STR) - 1
+
+#define SPIDER_SQL_COMMIT_STR "commit"
+#define SPIDER_SQL_COMMIT_LEN sizeof(SPIDER_SQL_COMMIT_STR) - 1
+#define SPIDER_SQL_ROLLBACK_STR "rollback"
+#define SPIDER_SQL_ROLLBACK_LEN sizeof(SPIDER_SQL_ROLLBACK_STR) - 1
+
+#define SPIDER_SQL_XA_START_STR "xa start "
+#define SPIDER_SQL_XA_START_LEN sizeof(SPIDER_SQL_XA_START_STR) - 1
+#define SPIDER_SQL_XA_END_STR "xa end "
+#define SPIDER_SQL_XA_END_LEN sizeof(SPIDER_SQL_XA_END_STR) - 1
+#define SPIDER_SQL_XA_PREPARE_STR "xa prepare "
+#define SPIDER_SQL_XA_PREPARE_LEN sizeof(SPIDER_SQL_XA_PREPARE_STR) - 1
+#define SPIDER_SQL_XA_COMMIT_STR "xa commit "
+#define SPIDER_SQL_XA_COMMIT_LEN sizeof(SPIDER_SQL_XA_COMMIT_STR) - 1
+#define SPIDER_SQL_XA_ROLLBACK_STR "xa rollback "
+#define SPIDER_SQL_XA_ROLLBACK_LEN sizeof(SPIDER_SQL_XA_ROLLBACK_STR) - 1
+
+#define SPIDER_SQL_LOCK_TABLE_STR "lock tables "
+#define SPIDER_SQL_LOCK_TABLE_LEN (sizeof(SPIDER_SQL_LOCK_TABLE_STR) - 1)
+#define SPIDER_SQL_UNLOCK_TABLE_STR "unlock tables"
+#define SPIDER_SQL_UNLOCK_TABLE_LEN (sizeof(SPIDER_SQL_UNLOCK_TABLE_STR) - 1)
+
+#define SPIDER_SQL_LEFT_JOIN_STR " left join "
+#define SPIDER_SQL_LEFT_JOIN_LEN (sizeof(SPIDER_SQL_LEFT_JOIN_STR) - 1)
+#define SPIDER_SQL_RIGHT_JOIN_STR " right join "
+#define SPIDER_SQL_RIGHT_JOIN_LEN (sizeof(SPIDER_SQL_RIGHT_JOIN_STR) - 1)
+#define SPIDER_SQL_JOIN_STR " join "
+#define SPIDER_SQL_JOIN_LEN (sizeof(SPIDER_SQL_JOIN_STR) - 1)
+#define SPIDER_SQL_ON_STR " on "
+#define SPIDER_SQL_ON_LEN (sizeof(SPIDER_SQL_ON_STR) - 1)
+
+#define SPIDER_SQL_SHOW_TABLE_STATUS_STR "show table status from "
+#define SPIDER_SQL_SHOW_TABLE_STATUS_LEN sizeof(SPIDER_SQL_SHOW_TABLE_STATUS_STR) - 1
+#define SPIDER_SQL_SELECT_TABLES_STATUS_STR "select `table_rows`,`avg_row_length`,`data_length`,`max_data_length`,`index_length`,`auto_increment`,`create_time`,`update_time`,`check_time`,`checksum` from `information_schema`.`tables` where `table_schema` = "
+#define SPIDER_SQL_SELECT_TABLES_STATUS_LEN sizeof(SPIDER_SQL_SELECT_TABLES_STATUS_STR) - 1
+#define SPIDER_SQL_SHOW_WARNINGS_STR "show warnings"
+#define SPIDER_SQL_SHOW_WARNINGS_LEN sizeof(SPIDER_SQL_SHOW_WARNINGS_STR) - 1
+
+#define SPIDER_SQL_SHOW_MASTER_STATUS_STR "show master status"
+#define SPIDER_SQL_SHOW_MASTER_STATUS_LEN sizeof(SPIDER_SQL_SHOW_MASTER_STATUS_STR) - 1
+#define SPIDER_SQL_BINLOG_GTID_POS_STR "select binlog_gtid_pos"
+#define SPIDER_SQL_BINLOG_GTID_POS_LEN sizeof(SPIDER_SQL_BINLOG_GTID_POS_STR) - 1
+
+#ifdef SPIDER_HAS_DISCOVER_TABLE_STRUCTURE
+#define SPIDER_SQL_SHOW_COLUMNS_STR "show columns from "
+#define SPIDER_SQL_SHOW_COLUMNS_LEN sizeof(SPIDER_SQL_SHOW_COLUMNS_STR) - 1
+#define SPIDER_SQL_SELECT_COLUMNS_STR "select `column_name`,`column_default`,`is_nullable`,`character_set_name`,`collation_name`,`column_type`,`extra` from `information_schema`.`columns` where `table_schema` = "
+#define SPIDER_SQL_SELECT_COLUMNS_LEN sizeof(SPIDER_SQL_SELECT_COLUMNS_STR) - 1
+
+#define SPIDER_SQL_AUTO_INCREMENT_STR " auto_increment"
+#define SPIDER_SQL_AUTO_INCREMENT_LEN sizeof(SPIDER_SQL_AUTO_INCREMENT_STR) - 1
+#define SPIDER_SQL_ORDINAL_POSITION_STR "ordinal_position"
+#define SPIDER_SQL_ORDINAL_POSITION_LEN sizeof(SPIDER_SQL_ORDINAL_POSITION_STR) - 1
+#define SPIDER_SQL_FULLTEXT_STR "fulltext"
+#define SPIDER_SQL_FULLTEXT_LEN sizeof(SPIDER_SQL_FULLTEXT_STR) - 1
+#define SPIDER_SQL_SPATIAL_STR "spatial"
+#define SPIDER_SQL_SPATIAL_LEN sizeof(SPIDER_SQL_SPATIAL_STR) - 1
+#define SPIDER_SQL_USING_HASH_STR " using hash"
+#define SPIDER_SQL_USING_HASH_LEN sizeof(SPIDER_SQL_USING_HASH_STR) - 1
+#endif
+
+#define SPIDER_SQL_SHOW_RECORDS_RECORDS_POS 0
+#define SPIDER_SQL_EXPLAIN_SELECT_RECORDS_POS 8
+
+#ifdef HA_HAS_CHECKSUM_EXTENDED
+#define SPIDER_SQL_CHECKSUM_CHECKSUM_POS 1
+#define SPIDER_SQL_CHECKSUM_TABLE_STR "checksum table "
+#define SPIDER_SQL_CHECKSUM_TABLE_LEN (sizeof(SPIDER_SQL_CHECKSUM_TABLE_STR) - 1)
+#endif
+
+#define SPIDER_SQL_LIKE_STR " like "
+#define SPIDER_SQL_LIKE_LEN (sizeof(SPIDER_SQL_LIKE_STR) - 1)
+#define SPIDER_SQL_LIMIT1_STR " limit 1"
+#define SPIDER_SQL_LIMIT1_LEN (sizeof(SPIDER_SQL_LIMIT1_STR) - 1)
+#define SPIDER_SQL_COLLATE_STR " collate "
+#define SPIDER_SQL_COLLATE_LEN (sizeof(SPIDER_SQL_COLLATE_STR) - 1)
+
+#define SPIDER_SQL_INTERVAL_STR " + interval "
+#define SPIDER_SQL_INTERVAL_LEN (sizeof(SPIDER_SQL_INTERVAL_STR) - 1)
+#define SPIDER_SQL_NEGINTERVAL_STR " - interval "
+#define SPIDER_SQL_NEGINTERVAL_LEN (sizeof(SPIDER_SQL_NEGINTERVAL_STR) - 1)
+
+static uchar SPIDER_SQL_LINESTRING_HEAD_STR[] =
+  {0x00,0x00,0x00,0x00,0x01,0x02,0x00,0x00,0x00,0x02,0x00,0x00,0x00};
+#define SPIDER_SQL_LINESTRING_HEAD_LEN sizeof(SPIDER_SQL_LINESTRING_HEAD_STR)
+
+#define SPIDER_SQL_DIRECT_INSERT_KIND_INSERT     0
+#define SPIDER_SQL_DIRECT_INSERT_KIND_REPLACE    1
+#define SPIDER_SQL_DIRECT_INSERT_KIND_IGNORE     2
+#define SPIDER_SQL_DIRECT_INSERT_KIND_DUP_UPDATE 3
+
+static const char *spider_db_table_lock_str[] =
+{
+  " read local,",
+  " read,",
+  " low_priority write,",
+  " write,"
+};
+static const int spider_db_table_lock_len[] =
+{
+  sizeof(" read local,") - 1,
+  sizeof(" read,") - 1,
+  sizeof(" low_priority write,") - 1,
+  sizeof(" write,") - 1
+};
+static const char *spider_db_timefunc_interval_str[] =
+{
+  " year", " quarter", " month", " week", " day",
+  " hour", " minute", " second", " microsecond",
+  " year_month", " day_hour", " day_minute",
+  " day_second", " hour_minute", " hour_second",
+  " minute_second", " day_microsecond", " hour_microsecond",
+  " minute_microsecond", " second_microsecond"
+};
+
+/* UTC time zone for timestamp columns */
+extern Time_zone *UTC;
+
+int spider_mysql_init()
+{
+  DBUG_ENTER("spider_mysql_init");
+  DBUG_RETURN(0);
+}
+
+int spider_mariadb_init()
+{
+  DBUG_ENTER("spider_mariadb_init");
+  DBUG_RETURN(0);
+}
+
+int spider_mysql_deinit()
+{
+  DBUG_ENTER("spider_mysql_deinit");
+  DBUG_RETURN(0);
+}
+
+int spider_mariadb_deinit()
+{
+  DBUG_ENTER("spider_mariadb_deinit");
+  DBUG_RETURN(0);
+}
+
+spider_db_share *spider_mysql_create_share(
+  SPIDER_SHARE *share
+) {
+  DBUG_ENTER("spider_mysql_create_share");
+  DBUG_RETURN(new spider_mysql_share(share));
+}
+
+spider_db_share *spider_mariadb_create_share(
+  SPIDER_SHARE *share
+) {
+  DBUG_ENTER("spider_mariadb_create_share");
+  DBUG_RETURN(new spider_mariadb_share(share));
+}
+
+spider_db_handler *spider_mysql_create_handler(
+  ha_spider *spider,
+  spider_db_share *db_share
+) {
+  DBUG_ENTER("spider_mysql_create_handler");
+  DBUG_RETURN(new spider_mysql_handler(spider,
+    (spider_mbase_share *) db_share));
+}
+
+spider_db_handler *spider_mariadb_create_handler(
+  ha_spider *spider,
+  spider_db_share *db_share
+) {
+  DBUG_ENTER("spider_mariadb_create_handler");
+  DBUG_RETURN(new spider_mariadb_handler(spider,
+    (spider_mbase_share *) db_share));
+}
+
+spider_db_copy_table *spider_mysql_create_copy_table(
+  spider_db_share *db_share
+) {
+  DBUG_ENTER("spider_mysql_create_copy_table");
+  DBUG_RETURN(new spider_mysql_copy_table(
+    (spider_mbase_share *) db_share));
+}
+
+spider_db_copy_table *spider_mariadb_create_copy_table(
+  spider_db_share *db_share
+) {
+  DBUG_ENTER("spider_mariadb_create_copy_table");
+  DBUG_RETURN(new spider_mariadb_copy_table(
+    (spider_mbase_share *) db_share));
+}
+
+SPIDER_DB_CONN *spider_mysql_create_conn(
+  SPIDER_CONN *conn
+) {
+  DBUG_ENTER("spider_mysql_create_conn");
+  DBUG_RETURN(new spider_db_mysql(conn));
+}
+
+SPIDER_DB_CONN *spider_mariadb_create_conn(
+  SPIDER_CONN *conn
+) {
+  DBUG_ENTER("spider_mariadb_create_conn");
+  DBUG_RETURN(new spider_db_mariadb(conn));
+}
+
+bool spider_mysql_support_direct_join(
+) {
+  DBUG_ENTER("spider_mysql_support_direct_join");
+  DBUG_RETURN(TRUE);
+}
+
+bool spider_mariadb_support_direct_join(
+) {
+  DBUG_ENTER("spider_mariadb_support_direct_join");
+  DBUG_RETURN(TRUE);
+}
+
+SPIDER_DBTON spider_dbton_mysql = {
+  0,
+  SPIDER_DB_WRAPPER_MYSQL,
+  SPIDER_DB_ACCESS_TYPE_SQL,
+  spider_mysql_init,
+  spider_mysql_deinit,
+  spider_mysql_create_share,
+  spider_mysql_create_handler,
+  spider_mysql_create_copy_table,
+  spider_mysql_create_conn,
+  spider_mysql_support_direct_join,
+  &spider_db_mysql_utility,
+  "For communicating to MySQL using native protocol",
+  "3.4.0",
+  SPIDER_MATURITY_STABLE
+};
+
+SPIDER_DBTON spider_dbton_mariadb = {
+  0,
+  SPIDER_DB_WRAPPER_MARIADB,
+  SPIDER_DB_ACCESS_TYPE_SQL,
+  spider_mariadb_init,
+  spider_mariadb_deinit,
+  spider_mariadb_create_share,
+  spider_mariadb_create_handler,
+  spider_mariadb_create_copy_table,
+  spider_mariadb_create_conn,
+  spider_mariadb_support_direct_join,
+  &spider_db_mariadb_utility,
+  "For communicating to MariaDB using native protocol",
+  "3.4.0",
+  SPIDER_MATURITY_STABLE
+};
+
+spider_db_mbase_row::spider_db_mbase_row(
+  uint dbton_id
+) : spider_db_row(dbton_id),
+  row(NULL), lengths(NULL), cloned(FALSE)
+{
+  DBUG_ENTER("spider_db_mbase_row::spider_db_mbase_row");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_db_mysql_row::spider_db_mysql_row() :
+  spider_db_mbase_row(spider_db_mysql_utility.dbton_id)
+{
+  DBUG_ENTER("spider_db_mysql_row::spider_db_mysql_row");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_db_mariadb_row::spider_db_mariadb_row() :
+  spider_db_mbase_row(spider_db_mariadb_utility.dbton_id)
+{
+  DBUG_ENTER("spider_db_mariadb_row::spider_db_mariadb_row");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_db_mbase_row::~spider_db_mbase_row()
+{
+  DBUG_ENTER("spider_db_mbase_row::~spider_db_mbase_row");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (cloned)
+  {
+    spider_free(spider_current_trx, row_first, MYF(0));
+  }
+  DBUG_VOID_RETURN;
+}
+
+spider_db_mysql_row::~spider_db_mysql_row()
+{
+  DBUG_ENTER("spider_db_mysql_row::~spider_db_mysql_row");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_db_mariadb_row::~spider_db_mariadb_row()
+{
+  DBUG_ENTER("spider_db_mariadb_row::~spider_db_mariadb_row");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+int spider_db_mbase_row::store_to_field(
+  Field *field,
+  CHARSET_INFO *access_charset
+) {
+  DBUG_ENTER("spider_db_mbase_row::store_to_field");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!*row)
+  {
+    DBUG_PRINT("info", ("spider field is null"));
+    field->set_null();
+    field->reset();
+  } else {
+    field->set_notnull();
+    if (field->flags & BLOB_FLAG)
+    {
+      DBUG_PRINT("info", ("spider blob field"));
+      if (
+        field->charset() == &my_charset_bin ||
+        field->charset()->cset == access_charset->cset
+      )
+        ((Field_blob *)field)->set_ptr(*lengths, (uchar *) *row);
+      else {
+        DBUG_PRINT("info", ("spider blob convert"));
+        if (field->table->file->ht == spider_hton_ptr)
+        {
+          ha_spider *spider = (ha_spider *) field->table->file;
+          spider_string *str = &spider->blob_buff[field->field_index];
+          str->length(0);
+          if (str->append(*row, *lengths, access_charset))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          ((Field_blob *)field)->set_ptr(str->length(), (uchar *) str->ptr());
+        } else {
+          field->store(*row, *lengths, access_charset);
+        }
+      }
+    } else
+      field->store(*row, *lengths, access_charset);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_row::append_to_str(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_db_mbase_row::append_to_str");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(*lengths))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(*row, *lengths);
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_row::append_escaped_to_str(
+  spider_string *str,
+  uint dbton_id
+) {
+  DBUG_ENTER("spider_db_mbase_row::append_escaped_to_str");
+  DBUG_PRINT("info",("spider this=%p", this));
+  spider_string tmp_str(*row, *lengths + 1, str->charset());
+  tmp_str.init_calc_mem(133);
+  tmp_str.length(*lengths);
+  if (str->reserve(*lengths * 2 + 2))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  spider_dbton[dbton_id].db_util->append_escaped_util(str, tmp_str.get_str());
+  DBUG_RETURN(0);
+}
+
+void spider_db_mbase_row::first()
+{
+  DBUG_ENTER("spider_db_mbase_row::first");
+  DBUG_PRINT("info",("spider this=%p", this));
+  row = row_first;
+  lengths = lengths_first;
+  DBUG_VOID_RETURN;
+}
+
+void spider_db_mbase_row::next()
+{
+  DBUG_ENTER("spider_db_mbase_row::next");
+  DBUG_PRINT("info",("spider this=%p", this));
+  row++;
+  lengths++;
+  DBUG_VOID_RETURN;
+}
+
+bool spider_db_mbase_row::is_null()
+{
+  DBUG_ENTER("spider_db_mbase_row::is_null");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(!(*row));
+}
+
+int spider_db_mbase_row::val_int()
+{
+  DBUG_ENTER("spider_db_mbase_row::val_int");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(*row ? atoi(*row) : 0);
+}
+
+double spider_db_mbase_row::val_real()
+{
+  DBUG_ENTER("spider_db_mbase_row::val_real");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(*row ? my_atof(*row) : 0.0);
+}
+
+my_decimal *spider_db_mbase_row::val_decimal(
+  my_decimal *decimal_value,
+  CHARSET_INFO *access_charset
+) {
+  DBUG_ENTER("spider_db_mbase_row::val_decimal");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!*row)
+    DBUG_RETURN(NULL);
+
+#ifdef SPIDER_HAS_DECIMAL_OPERATION_RESULTS_VALUE_TYPE
+  decimal_operation_results(str2my_decimal(0, *row, *lengths, access_charset,
+    decimal_value), "", "");
+#else
+  decimal_operation_results(str2my_decimal(0, *row, *lengths, access_charset,
+    decimal_value));
+#endif
+
+  DBUG_RETURN(decimal_value);
+}
+
+SPIDER_DB_ROW *spider_db_mbase_row::clone()
+{
+  spider_db_mbase_row *clone_row;
+  char *tmp_char;
+  MYSQL_ROW tmp_row = row_first, ctmp_row;
+  ulong *tmp_lengths = lengths_first;
+  uint row_size, i;
+  DBUG_ENTER("spider_db_mbase_row::clone");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!(clone_row = new spider_db_mbase_row(dbton_id)))
+  {
+    DBUG_RETURN(NULL);
+  }
+  if (!record_size)
+  {
+    row_size = field_count;
+    for (i = 0; i < field_count; i++)
+    {
+      row_size += *tmp_lengths;
+      tmp_lengths++;
+    }
+    record_size = row_size - field_count;
+  } else {
+    row_size = record_size + field_count;
+  }
+  if (!spider_bulk_malloc(spider_current_trx, 29, MYF(MY_WME),
+    &clone_row->row, (uint) (sizeof(char*) * field_count),
+    &tmp_char, (uint) (row_size),
+    &clone_row->lengths, (uint) (sizeof(ulong) * field_count),
+    NullS)
+  ) {
+    delete clone_row;
+    DBUG_RETURN(NULL);
+  }
+  memcpy(clone_row->lengths, lengths_first, sizeof(ulong) * field_count);
+  tmp_lengths = lengths_first;
+  ctmp_row = clone_row->row;
+  for (i = 0; i < field_count; i++)
+  {
+    DBUG_PRINT("info",("spider *lengths=%lu", *tmp_lengths));
+    if (*tmp_row == NULL)
+    {
+      *ctmp_row = NULL;
+      *tmp_char = 0;
+      tmp_char++;
+    } else {
+      *ctmp_row = tmp_char;
+      memcpy(tmp_char, *tmp_row, *tmp_lengths + 1);
+      tmp_char += *tmp_lengths + 1;
+    }
+    ctmp_row++;
+    tmp_lengths++;
+    tmp_row++;
+  }
+  clone_row->field_count = field_count;
+  clone_row->record_size = record_size;
+  clone_row->row_first = clone_row->row;
+  clone_row->lengths_first = clone_row->lengths;
+  clone_row->cloned = TRUE;
+  DBUG_RETURN((SPIDER_DB_ROW *) clone_row);
+}
+
+int spider_db_mbase_row::store_to_tmp_table(
+  TABLE *tmp_table,
+  spider_string *str
+) {
+  uint i;
+  MYSQL_ROW tmp_row = row;
+  ulong *tmp_lengths = lengths;
+  DBUG_ENTER("spider_db_mbase_row::store_to_tmp_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str->length(0);
+  for (i = 0; i < field_count; i++)
+  {
+    if (*tmp_row)
+    {
+      if (str->reserve(*tmp_lengths + 1))
+      {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+      str->q_append(*tmp_row, *tmp_lengths + 1);
+    }
+    tmp_lengths++;
+    tmp_row++;
+  }
+  tmp_table->field[0]->set_notnull();
+  tmp_table->field[0]->store(
+    (const char *) lengths,
+    sizeof(ulong) * field_count, &my_charset_bin);
+  tmp_table->field[1]->set_notnull();
+  tmp_table->field[1]->store(
+    str->ptr(), str->length(), &my_charset_bin);
+  tmp_table->field[2]->set_notnull();
+  tmp_table->field[2]->store(
+    (char *) row, (uint) (sizeof(char *) * field_count), &my_charset_bin);
+  DBUG_RETURN(tmp_table->file->ha_write_row(tmp_table->record[0]));
+}
+
+uint spider_db_mbase_row::get_byte_size()
+{
+  ulong *tmp_lengths = lengths_first;
+  uint i;
+  DBUG_ENTER("spider_db_mbase_row::get_byte_size");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!record_size)
+  {
+    for (i = 0; i < field_count; i++)
+    {
+      record_size += *tmp_lengths;
+      tmp_lengths++;
+    }
+  }
+  DBUG_RETURN(record_size);
+}
+
+spider_db_mbase_result::spider_db_mbase_result(
+  SPIDER_DB_CONN *in_db_conn
+) : spider_db_result(in_db_conn),
+  db_result(NULL), row(in_db_conn->dbton_id)
+{
+  DBUG_ENTER("spider_db_mbase_result::spider_db_mbase_result");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_db_mysql_result::spider_db_mysql_result(
+  SPIDER_DB_CONN *in_db_conn
+) : spider_db_mbase_result(in_db_conn)
+{
+  DBUG_ENTER("spider_db_mysql_result::spider_db_mysql_result");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_db_mariadb_result::spider_db_mariadb_result(
+  SPIDER_DB_CONN *in_db_conn
+) : spider_db_mbase_result(in_db_conn)
+{
+  DBUG_ENTER("spider_db_mariadb_result::spider_db_mariadb_result");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_db_mbase_result::~spider_db_mbase_result()
+{
+  DBUG_ENTER("spider_db_mbase_result::~spider_db_mbase_result");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (db_result)
+  {
+    free_result();
+  }
+  DBUG_VOID_RETURN;
+}
+
+spider_db_mysql_result::~spider_db_mysql_result()
+{
+  DBUG_ENTER("spider_db_mysql_result::~spider_db_mysql_result");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_db_mariadb_result::~spider_db_mariadb_result()
+{
+  DBUG_ENTER("spider_db_mariadb_result::~spider_db_mariadb_result");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+bool spider_db_mbase_result::has_result()
+{
+  DBUG_ENTER("spider_db_mbase_result::has_result");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(db_result);
+}
+
+void spider_db_mbase_result::free_result()
+{
+  DBUG_ENTER("spider_db_mbase_result::free_result");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* need 2 times execution design */
+  if (db_result)
+  {
+    mysql_free_result(db_result);
+    db_result = NULL;
+  }
+  DBUG_VOID_RETURN;
+}
+
+SPIDER_DB_ROW *spider_db_mbase_result::current_row()
+{
+  DBUG_ENTER("spider_db_mbase_result::current_row");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN((SPIDER_DB_ROW *) row.clone());
+}
+
+SPIDER_DB_ROW *spider_db_mbase_result::fetch_row()
+{
+  DBUG_ENTER("spider_db_mbase_result::fetch_row");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!(row.row = mysql_fetch_row(db_result)))
+  {
+    if (mysql_errno(((spider_db_mbase *) db_conn)->db_conn))
+    {
+      store_error_num = mysql_errno(((spider_db_mbase *) db_conn)->db_conn);
+      my_message(store_error_num,
+        mysql_error(((spider_db_mbase *) db_conn)->db_conn), MYF(0));
+    } else
+      store_error_num = HA_ERR_END_OF_FILE;
+    DBUG_RETURN(NULL);
+  }
+  row.lengths = mysql_fetch_lengths(db_result);
+  row.field_count = mysql_num_fields(db_result);
+  row.row_first = row.row;
+  row.lengths_first = row.lengths;
+  row.record_size = 0;
+  DBUG_RETURN((SPIDER_DB_ROW *) &row);
+}
+
+SPIDER_DB_ROW *spider_db_mbase_result::fetch_row_from_result_buffer(
+  spider_db_result_buffer *spider_res_buf
+) {
+  DBUG_ENTER("spider_db_mbase_result::fetch_row_from_result_buffer");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!(row.row = mysql_fetch_row(db_result)))
+  {
+    if (mysql_errno(((spider_db_mbase *) db_conn)->db_conn))
+    {
+      store_error_num = mysql_errno(((spider_db_mbase *) db_conn)->db_conn);
+      my_message(store_error_num,
+        mysql_error(((spider_db_mbase *) db_conn)->db_conn), MYF(0));
+    } else
+      store_error_num = HA_ERR_END_OF_FILE;
+    DBUG_RETURN(NULL);
+  }
+  row.lengths = mysql_fetch_lengths(db_result);
+  row.field_count = mysql_num_fields(db_result);
+  row.row_first = row.row;
+  row.lengths_first = row.lengths;
+  row.record_size = 0;
+  DBUG_RETURN((SPIDER_DB_ROW *) &row);
+}
+
+SPIDER_DB_ROW *spider_db_mbase_result::fetch_row_from_tmp_table(
+  TABLE *tmp_table
+) {
+  uint i;
+  spider_string tmp_str1, tmp_str2, tmp_str3;
+  const char *row_ptr;
+  MYSQL_ROW tmp_row;
+  ulong *tmp_lengths;
+  uint field_count;
+  DBUG_ENTER("spider_db_mbase_result::fetch_row_from_tmp_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  tmp_str1.init_calc_mem(117);
+  tmp_str2.init_calc_mem(118);
+  tmp_str3.init_calc_mem(170);
+  tmp_table->field[0]->val_str(tmp_str1.get_str());
+  tmp_table->field[1]->val_str(tmp_str2.get_str());
+  tmp_table->field[2]->val_str(tmp_str3.get_str());
+  tmp_str1.mem_calc();
+  tmp_str2.mem_calc();
+  tmp_str3.mem_calc();
+  row_ptr = tmp_str2.ptr();
+  tmp_lengths = (ulong *) tmp_str1.ptr();
+  tmp_row = (MYSQL_ROW) tmp_str3.ptr();
+  field_count = tmp_str1.length() / sizeof(ulong);
+  row.row = tmp_row;
+  row.lengths = tmp_lengths;
+  row.field_count = field_count;
+  row.row_first = row.row;
+  row.lengths_first = row.lengths;
+  row.record_size = tmp_str2.length();
+  for (i = 0; i < field_count; i++)
+  {
+    if (*tmp_row)
+    {
+      *tmp_row = (char *) row_ptr;
+      row_ptr += *tmp_lengths + 1;
+    }
+    tmp_row++;
+    tmp_lengths++;
+  }
+  DBUG_RETURN((SPIDER_DB_ROW *) &row);
+}
+
+int spider_db_mbase_result::fetch_table_status(
+  int mode,
+  ha_statistics &stat
+) {
+  int error_num;
+  MYSQL_ROW mysql_row;
+  MYSQL_TIME mysql_time;
+#ifdef MARIADB_BASE_VERSION
+  uint not_used_uint;
+#else
+  my_bool not_used_my_bool;
+#endif
+#ifdef SPIDER_HAS_TIME_STATUS
+  MYSQL_TIME_STATUS time_status;
+#else
+  int time_status;
+#endif
+  long not_used_long;
+  DBUG_ENTER("spider_db_mbase_result::fetch_table_status");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!(mysql_row = mysql_fetch_row(db_result)))
+  {
+    DBUG_PRINT("info",("spider fetch row is null"));
+    if ((error_num = mysql_errno(((spider_db_mbase *) db_conn)->db_conn)))
+    {
+      my_message(error_num,
+        mysql_error(((spider_db_mbase *) db_conn)->db_conn), MYF(0));
+      DBUG_RETURN(error_num);
+    }
+    DBUG_RETURN(ER_SPIDER_REMOTE_TABLE_NOT_FOUND_NUM);
+  }
+  if (mode == 1)
+  {
+    /* Ok to test for 18 fields as all new fields are added last */
+    if (num_fields() < 18)
+    {
+      DBUG_PRINT("info",("spider field_count < 18"));
+      DBUG_RETURN(ER_SPIDER_INVALID_REMOTE_TABLE_INFO_NUM);
+    }
+
+    if (mysql_row[4])
+      stat.records =
+        (ha_rows) my_strtoll10(mysql_row[4], (char**) NULL, &error_num);
+    else
+      stat.records = (ha_rows) 0;
+    DBUG_PRINT("info",
+      ("spider records=%lld", stat.records));
+    if (mysql_row[5])
+      stat.mean_rec_length =
+        (ulong) my_strtoll10(mysql_row[5], (char**) NULL, &error_num);
+    else
+      stat.mean_rec_length = 0;
+    DBUG_PRINT("info",
+      ("spider mean_rec_length=%lu", stat.mean_rec_length));
+    if (mysql_row[6])
+      stat.data_file_length =
+        (ulonglong) my_strtoll10(mysql_row[6], (char**) NULL, &error_num);
+    else
+      stat.data_file_length = 0;
+    DBUG_PRINT("info",
+      ("spider data_file_length=%lld", stat.data_file_length));
+    if (mysql_row[7])
+      stat.max_data_file_length =
+        (ulonglong) my_strtoll10(mysql_row[7], (char**) NULL, &error_num);
+    else
+      stat.max_data_file_length = 0;
+    DBUG_PRINT("info",
+      ("spider max_data_file_length=%lld", stat.max_data_file_length));
+    if (mysql_row[8])
+      stat.index_file_length =
+        (ulonglong) my_strtoll10(mysql_row[8], (char**) NULL, &error_num);
+    else
+      stat.index_file_length = 0;
+    DBUG_PRINT("info",
+      ("spider index_file_length=%lld", stat.index_file_length));
+    if (mysql_row[10])
+      stat.auto_increment_value =
+        (ulonglong) my_strtoll10(mysql_row[10], (char**) NULL, &error_num);
+    else
+      stat.auto_increment_value = 1;
+    DBUG_PRINT("info",
+      ("spider auto_increment_value=%lld", stat.auto_increment_value));
+    if (mysql_row[11])
+    {
+#ifdef SPIDER_HAS_TIME_STATUS
+      my_time_status_init(&time_status);
+#endif
+      SPIDER_str_to_datetime(mysql_row[11], strlen(mysql_row[11]),
+        &mysql_time, 0, &time_status);
+#ifdef MARIADB_BASE_VERSION
+      stat.create_time = (time_t) my_system_gmt_sec(&mysql_time,
+        &not_used_long, &not_used_uint);
+#else
+      stat.create_time = (time_t) my_system_gmt_sec(&mysql_time,
+        &not_used_long, &not_used_my_bool);
+#endif
+    } else
+      stat.create_time = (time_t) 0;
+#ifndef DBUG_OFF
+    {
+      struct tm *ts, tmp_ts;
+      char buf[80];
+      ts = localtime_r(&stat.create_time, &tmp_ts);
+      strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", ts);
+      DBUG_PRINT("info",("spider create_time=%s", buf));
+    }
+#endif
+    if (mysql_row[12])
+    {
+#ifdef SPIDER_HAS_TIME_STATUS
+      my_time_status_init(&time_status);
+#endif
+      SPIDER_str_to_datetime(mysql_row[12], strlen(mysql_row[12]),
+        &mysql_time, 0, &time_status);
+#ifdef MARIADB_BASE_VERSION
+      stat.update_time = (time_t) my_system_gmt_sec(&mysql_time,
+        &not_used_long, &not_used_uint);
+#else
+      stat.update_time = (time_t) my_system_gmt_sec(&mysql_time,
+        &not_used_long, &not_used_my_bool);
+#endif
+    } else
+      stat.update_time = (time_t) 0;
+#ifndef DBUG_OFF
+    {
+      struct tm *ts, tmp_ts;
+      char buf[80];
+      ts = localtime_r(&stat.update_time, &tmp_ts);
+      strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", ts);
+      DBUG_PRINT("info",("spider update_time=%s", buf));
+    }
+#endif
+    if (mysql_row[13])
+    {
+#ifdef SPIDER_HAS_TIME_STATUS
+      my_time_status_init(&time_status);
+#endif
+      SPIDER_str_to_datetime(mysql_row[13], strlen(mysql_row[13]),
+        &mysql_time, 0, &time_status);
+#ifdef MARIADB_BASE_VERSION
+      stat.check_time = (time_t) my_system_gmt_sec(&mysql_time,
+        &not_used_long, &not_used_uint);
+#else
+      stat.check_time = (time_t) my_system_gmt_sec(&mysql_time,
+        &not_used_long, &not_used_my_bool);
+#endif
+    } else
+      stat.check_time = (time_t) 0;
+#ifndef DBUG_OFF
+    {
+      struct tm *ts, tmp_ts;
+      char buf[80];
+      ts = localtime_r(&stat.check_time, &tmp_ts);
+      strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", ts);
+      DBUG_PRINT("info",("spider check_time=%s", buf));
+    }
+#endif
+    if (mysql_row[15])
+    {
+      stat.checksum_null = FALSE;
+      stat.checksum =
+        (ha_checksum) my_strtoll10(mysql_row[15], (char**) NULL, &error_num);
+      DBUG_PRINT("info", ("spider checksum=%lu", (ulong) stat.checksum));
+    } else {
+      stat.checksum_null = TRUE;
+      stat.checksum = (ha_checksum) 0;
+      DBUG_PRINT("info", ("spider checksum is null"));
+    }
+  } else {
+    if (mysql_row[0])
+      stat.records =
+        (ha_rows) my_strtoll10(mysql_row[0], (char**) NULL, &error_num);
+    else
+      stat.records = (ha_rows) 0;
+    DBUG_PRINT("info",
+      ("spider records=%lld", stat.records));
+    if (mysql_row[1])
+      stat.mean_rec_length =
+        (ulong) my_strtoll10(mysql_row[1], (char**) NULL, &error_num);
+    else
+      stat.mean_rec_length = 0;
+    DBUG_PRINT("info",
+      ("spider mean_rec_length=%lu", stat.mean_rec_length));
+    if (mysql_row[2])
+      stat.data_file_length =
+        (ulonglong) my_strtoll10(mysql_row[2], (char**) NULL, &error_num);
+    else
+      stat.data_file_length = 0;
+    DBUG_PRINT("info",
+      ("spider data_file_length=%lld", stat.data_file_length));
+    if (mysql_row[3])
+      stat.max_data_file_length =
+        (ulonglong) my_strtoll10(mysql_row[3], (char**) NULL, &error_num);
+    else
+      stat.max_data_file_length = 0;
+    DBUG_PRINT("info",
+      ("spider max_data_file_length=%lld", stat.max_data_file_length));
+    if (mysql_row[4])
+      stat.index_file_length =
+        (ulonglong) my_strtoll10(mysql_row[4], (char**) NULL, &error_num);
+    else
+      stat.index_file_length = 0;
+    DBUG_PRINT("info",
+      ("spider index_file_length=%lld", stat.index_file_length));
+    if (mysql_row[5])
+      stat.auto_increment_value =
+        (ulonglong) my_strtoll10(mysql_row[5], (char**) NULL, &error_num);
+    else
+      stat.auto_increment_value = 1;
+    DBUG_PRINT("info",
+      ("spider auto_increment_value=%lld", stat.auto_increment_value));
+    if (mysql_row[6])
+    {
+#ifdef SPIDER_HAS_TIME_STATUS
+      my_time_status_init(&time_status);
+#endif
+      SPIDER_str_to_datetime(mysql_row[6], strlen(mysql_row[6]),
+        &mysql_time, 0, &time_status);
+#ifdef MARIADB_BASE_VERSION
+      stat.create_time = (time_t) my_system_gmt_sec(&mysql_time,
+        &not_used_long, &not_used_uint);
+#else
+      stat.create_time = (time_t) my_system_gmt_sec(&mysql_time,
+        &not_used_long, &not_used_my_bool);
+#endif
+    } else
+      stat.create_time = (time_t) 0;
+#ifndef DBUG_OFF
+    {
+      struct tm *ts, tmp_ts;
+      char buf[80];
+      ts = localtime_r(&stat.create_time, &tmp_ts);
+      strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", ts);
+      DBUG_PRINT("info",("spider create_time=%s", buf));
+    }
+#endif
+    if (mysql_row[7])
+    {
+#ifdef SPIDER_HAS_TIME_STATUS
+      my_time_status_init(&time_status);
+#endif
+      SPIDER_str_to_datetime(mysql_row[7], strlen(mysql_row[7]),
+        &mysql_time, 0, &time_status);
+#ifdef MARIADB_BASE_VERSION
+      stat.update_time = (time_t) my_system_gmt_sec(&mysql_time,
+        &not_used_long, &not_used_uint);
+#else
+      stat.update_time = (time_t) my_system_gmt_sec(&mysql_time,
+        &not_used_long, &not_used_my_bool);
+#endif
+    } else
+      stat.update_time = (time_t) 0;
+#ifndef DBUG_OFF
+    {
+      struct tm *ts, tmp_ts;
+      char buf[80];
+      ts = localtime_r(&stat.update_time, &tmp_ts);
+      strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", ts);
+      DBUG_PRINT("info",("spider update_time=%s", buf));
+    }
+#endif
+    if (mysql_row[8])
+    {
+#ifdef SPIDER_HAS_TIME_STATUS
+      my_time_status_init(&time_status);
+#endif
+      SPIDER_str_to_datetime(mysql_row[8], strlen(mysql_row[8]),
+        &mysql_time, 0, &time_status);
+#ifdef MARIADB_BASE_VERSION
+      stat.check_time = (time_t) my_system_gmt_sec(&mysql_time,
+        &not_used_long, &not_used_uint);
+#else
+      stat.check_time = (time_t) my_system_gmt_sec(&mysql_time,
+        &not_used_long, &not_used_my_bool);
+#endif
+    } else
+      stat.check_time = (time_t) 0;
+#ifndef DBUG_OFF
+    {
+      struct tm *ts, tmp_ts;
+      char buf[80];
+      ts = localtime_r(&stat.check_time, &tmp_ts);
+      strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", ts);
+      DBUG_PRINT("info",("spider check_time=%s", buf));
+    }
+#endif
+    if (mysql_row[9])
+    {
+      stat.checksum_null = FALSE;
+      stat.checksum =
+        (ha_checksum) my_strtoll10(mysql_row[9], (char**) NULL, &error_num);
+      DBUG_PRINT("info", ("spider checksum=%lu", (ulong) stat.checksum));
+    } else {
+      stat.checksum_null = TRUE;
+      stat.checksum = (ha_checksum) 0;
+      DBUG_PRINT("info", ("spider checksum is null"));
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_result::fetch_simple_action(
+  uint simple_action,
+  uint position,
+  void *param
+) {
+  int error_num;
+  MYSQL_ROW mysql_row;
+  DBUG_ENTER("spider_db_mbase_result::fetch_simple_action");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!(mysql_row = mysql_fetch_row(db_result)))
+  {
+    DBUG_PRINT("info",("spider fetch row is null"));
+    if ((error_num = mysql_errno(((spider_db_mbase *) db_conn)->db_conn)))
+    {
+      my_message(error_num,
+        mysql_error(((spider_db_mbase *) db_conn)->db_conn), MYF(0));
+      DBUG_RETURN(error_num);
+    }
+    DBUG_RETURN(ER_QUERY_ON_FOREIGN_DATA_SOURCE);
+  }
+  if (num_fields() <= position)
+  {
+    DBUG_RETURN(ER_QUERY_ON_FOREIGN_DATA_SOURCE);
+  }
+  switch (simple_action)
+  {
+    case SPIDER_SIMPLE_RECORDS:
+    {
+      ha_rows *records = (ha_rows *) param;
+      if (mysql_row[position])
+      {
+        *records =
+          (ha_rows) my_strtoll10(mysql_row[position], (char**) NULL,
+          &error_num);
+      } else {
+        *records = (ha_rows) 0;
+      }
+      DBUG_PRINT("info", ("spider records=%lld", *records));
+      break;
+    }
+#ifdef HA_HAS_CHECKSUM_EXTENDED
+    case SPIDER_SIMPLE_CHECKSUM_TABLE:
+    {
+      ha_spider *spider = (ha_spider *) param;
+      if (mysql_row[position])
+      {
+        spider->checksum_val =
+          (ha_checksum) my_strtoll10(mysql_row[position], (char**) NULL,
+          &error_num);
+        DBUG_PRINT("info", ("spider checksum=%llu", (ulonglong)spider->checksum_val));
+        spider->checksum_null = FALSE;
+      } else {
+        spider->checksum_null = TRUE;
+        DBUG_PRINT("info", ("spider checksum is null"));
+      }
+      break;
+    }
+#endif
+    default:
+      DBUG_ASSERT(0);
+      break;
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_result::fetch_table_records(
+  int mode,
+  ha_rows &records
+) {
+  DBUG_ENTER("spider_db_mbase_result::fetch_table_records");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (mode == 1)
+  {
+    DBUG_RETURN(fetch_simple_action(SPIDER_SIMPLE_RECORDS,
+      SPIDER_SQL_SHOW_RECORDS_RECORDS_POS, &records));
+  } else {
+    DBUG_RETURN(fetch_simple_action(SPIDER_SIMPLE_RECORDS,
+      SPIDER_SQL_EXPLAIN_SELECT_RECORDS_POS, &records));
+  }
+}
+
+#ifdef HA_HAS_CHECKSUM_EXTENDED
+int spider_db_mbase_result::fetch_table_checksum(
+  ha_spider *spider
+) {
+  DBUG_ENTER("spider_db_mbase_result::fetch_table_checksum");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(fetch_simple_action(SPIDER_SIMPLE_CHECKSUM_TABLE,
+    SPIDER_SQL_CHECKSUM_CHECKSUM_POS, spider));
+}
+#endif
+
+int spider_db_mbase_result::fetch_table_cardinality(
+  int mode,
+  TABLE *table,
+  longlong *cardinality,
+  uchar *cardinality_upd,
+  int bitmap_size
+) {
+  int error_num;
+  MYSQL_ROW mysql_row;
+  Field *field;
+  DBUG_ENTER("spider_db_mbase_result::fetch_table_cardinality");
+  DBUG_PRINT("info",("spider this=%p", this));
+  memset((uchar *) cardinality_upd, 0, sizeof(uchar) * bitmap_size);
+  if (!(mysql_row = mysql_fetch_row(db_result)))
+  {
+    DBUG_PRINT("info",("spider fetch row is null"));
+    if ((error_num = mysql_errno(((spider_db_mbase *) db_conn)->db_conn)))
+    {
+      my_message(error_num,
+        mysql_error(((spider_db_mbase *) db_conn)->db_conn), MYF(0));
+      DBUG_RETURN(error_num);
+    }
+    /* no index */
+    DBUG_RETURN(0);
+  }
+  if (mode == 1)
+  {
+    uint num_fields = this->num_fields();
+    if (num_fields < 12 || num_fields > 13)
+    {
+      DBUG_PRINT("info",("spider num_fields < 12 || num_fields > 13"));
+      DBUG_RETURN(ER_SPIDER_INVALID_REMOTE_TABLE_INFO_NUM);
+    }
+
+    while (mysql_row)
+    {
+      if (
+        mysql_row[4] &&
+        mysql_row[6] &&
+        (field = find_field_in_table_sef(table, mysql_row[4]))
+      ) {
+        if ((cardinality[field->field_index] =
+          (longlong) my_strtoll10(mysql_row[6], (char**) NULL, &error_num))
+        <= 0)
+          cardinality[field->field_index] = 1;
+        spider_set_bit(cardinality_upd, field->field_index);
+        DBUG_PRINT("info",
+          ("spider col_name=%s", mysql_row[4]));
+        DBUG_PRINT("info",
+          ("spider cardinality=%lld",
+          cardinality[field->field_index]));
+      } else if (mysql_row[4])
+      {
+        DBUG_PRINT("info",
+          ("spider skip col_name=%s", mysql_row[4]));
+      } else {
+        DBUG_RETURN(ER_SPIDER_INVALID_REMOTE_TABLE_INFO_NUM);
+      }
+      mysql_row = mysql_fetch_row(db_result);
+    }
+  } else {
+    while (mysql_row)
+    {
+      if (
+        mysql_row[0] &&
+        mysql_row[1] &&
+        (field = find_field_in_table_sef(table, mysql_row[0]))
+      ) {
+        if ((cardinality[field->field_index] =
+          (longlong) my_strtoll10(mysql_row[1], (char**) NULL, &error_num))
+        <= 0)
+          cardinality[field->field_index] = 1;
+        spider_set_bit(cardinality_upd, field->field_index);
+        DBUG_PRINT("info",
+          ("spider col_name=%s", mysql_row[0]));
+        DBUG_PRINT("info",
+          ("spider cardinality=%lld",
+          cardinality[field->field_index]));
+      } else if (mysql_row[0])
+      {
+        DBUG_PRINT("info",
+          ("spider skip col_name=%s", mysql_row[0]));
+      } else {
+        DBUG_RETURN(ER_SPIDER_INVALID_REMOTE_TABLE_INFO_NUM);
+      }
+      mysql_row = mysql_fetch_row(db_result);
+    }
+  }
+  if ((error_num = mysql_errno(((spider_db_mbase *) db_conn)->db_conn)))
+  {
+    my_message(error_num,
+      mysql_error(((spider_db_mbase *) db_conn)->db_conn), MYF(0));
+    DBUG_RETURN(error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_result::fetch_table_mon_status(
+  int &status
+) {
+  int error_num;
+  MYSQL_ROW mysql_row;
+  DBUG_ENTER("spider_db_mbase_result::fetch_table_mon_status");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!(mysql_row = mysql_fetch_row(db_result)))
+  {
+    DBUG_PRINT("info",("spider fetch row is null"));
+    if ((error_num = mysql_errno(((spider_db_mbase *) db_conn)->db_conn)))
+    {
+      my_message(error_num,
+        mysql_error(((spider_db_mbase *) db_conn)->db_conn), MYF(0));
+      DBUG_RETURN(error_num);
+    }
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  if (num_fields() != 1)
+  {
+    DBUG_PRINT("info",("spider num_fields != 1"));
+    my_printf_error(ER_SPIDER_UNKNOWN_NUM, ER_SPIDER_UNKNOWN_STR, MYF(0));
+    DBUG_RETURN(ER_SPIDER_UNKNOWN_NUM);
+  }
+  if (mysql_row[0])
+    status = atoi(mysql_row[0]);
+  else
+    status = SPIDER_LINK_MON_OK;
+  DBUG_PRINT("info", ("spider status=%d", status));
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_result::fetch_show_master_status(
+  const char **binlog_file_name,
+  const char **binlog_pos
+) {
+  int error_num;
+  MYSQL_ROW mysql_row;
+  DBUG_ENTER("spider_db_mbase_result::fetch_show_master_status");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!(mysql_row = mysql_fetch_row(db_result)))
+  {
+    DBUG_PRINT("info",("spider fetch row is null"));
+    if ((error_num = mysql_errno(((spider_db_mbase *) db_conn)->db_conn)))
+    {
+      my_message(error_num,
+        mysql_error(((spider_db_mbase *) db_conn)->db_conn), MYF(0));
+      DBUG_RETURN(error_num);
+    }
+    DBUG_RETURN(ER_QUERY_ON_FOREIGN_DATA_SOURCE);
+  }
+  if (num_fields() != 4)
+  {
+    DBUG_RETURN(ER_QUERY_ON_FOREIGN_DATA_SOURCE);
+  }
+
+  *binlog_file_name = mysql_row[0];
+  DBUG_PRINT("info",("spider binlog_file_name=%s", *binlog_file_name));
+  *binlog_pos = mysql_row[1];
+  DBUG_PRINT("info",("spider binlog_pos=%s", *binlog_pos));
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_result::fetch_select_binlog_gtid_pos(
+  const char **gtid_pos
+) {
+  int error_num;
+  MYSQL_ROW mysql_row;
+  DBUG_ENTER("spider_db_mbase_result::fetch_select_binlog_gtid_pos");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!(mysql_row = mysql_fetch_row(db_result)))
+  {
+    DBUG_PRINT("info",("spider fetch row is null"));
+    if ((error_num = mysql_errno(((spider_db_mbase *) db_conn)->db_conn)))
+    {
+      my_message(error_num,
+        mysql_error(((spider_db_mbase *) db_conn)->db_conn), MYF(0));
+      DBUG_RETURN(error_num);
+    }
+    DBUG_RETURN(ER_QUERY_ON_FOREIGN_DATA_SOURCE);
+  }
+  if (num_fields() != 1)
+  {
+    DBUG_RETURN(ER_QUERY_ON_FOREIGN_DATA_SOURCE);
+  }
+
+  *gtid_pos = mysql_row[0];
+  DBUG_PRINT("info",("spider gtid_pos=%s", *gtid_pos));
+  DBUG_RETURN(0);
+}
+
+longlong spider_db_mbase_result::num_rows()
+{
+  DBUG_ENTER("spider_db_mbase_result::num_rows");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN((longlong) mysql_num_rows(db_result));
+}
+
+uint spider_db_mbase_result::num_fields()
+{
+  DBUG_ENTER("spider_db_mbase_result::num_fields");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(mysql_num_fields(db_result));
+}
+
+void spider_db_mbase_result::move_to_pos(
+  longlong pos
+) {
+  DBUG_ENTER("spider_db_mbase_result::move_to_pos");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider pos=%lld", pos));
+/*
+  DBUG_ASSERT(first_row);
+*/
+  db_result->data_cursor = first_row + pos;
+  DBUG_VOID_RETURN;
+}
+
+int spider_db_mbase_result::get_errno()
+{
+  DBUG_ENTER("spider_db_mbase_result::get_errno");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider store_error_num=%d", store_error_num));
+  DBUG_RETURN(store_error_num);
+}
+
+#ifdef SPIDER_HAS_DISCOVER_TABLE_STRUCTURE
+int spider_db_mbase_result::fetch_columns_for_discover_table_structure(
+  spider_string *str,
+  CHARSET_INFO *access_charset
+) {
+  int error_num;
+  uint length;
+  MYSQL_ROW mysql_row;
+  DBUG_ENTER("spider_db_mbase_result::fetch_columns_for_discover_table_structure");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!(mysql_row = mysql_fetch_row(db_result)))
+  {
+    DBUG_PRINT("info",("spider fetch row is null"));
+    if ((error_num = mysql_errno(((spider_db_mbase *) db_conn)->db_conn)))
+    {
+      my_message(error_num,
+        mysql_error(((spider_db_mbase *) db_conn)->db_conn), MYF(0));
+      DBUG_RETURN(error_num);
+    }
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  if (num_fields() != 7)
+  {
+    DBUG_PRINT("info",("spider num_fields != 7"));
+    my_printf_error(ER_SPIDER_UNKNOWN_NUM, ER_SPIDER_UNKNOWN_STR, MYF(0));
+    DBUG_RETURN(ER_SPIDER_UNKNOWN_NUM);
+  }
+  do {
+    if (str->reserve(SPIDER_SQL_NAME_QUOTE_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+    if (str->append(mysql_row[0], strlen(mysql_row[0]), access_charset))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    if (str->reserve(SPIDER_SQL_NAME_QUOTE_LEN + SPIDER_SQL_SPACE_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+    str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+    if (str->append(mysql_row[5], strlen(mysql_row[5]), access_charset))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    if (mysql_row[3])
+    {
+      length = strlen(mysql_row[3]);
+      if (str->reserve(SPIDER_SQL_CHARACTER_SET_LEN + length))
+      {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+      str->q_append(SPIDER_SQL_CHARACTER_SET_STR, SPIDER_SQL_CHARACTER_SET_LEN);
+      str->q_append(mysql_row[3], length);
+    }
+    if (mysql_row[4])
+    {
+      length = strlen(mysql_row[4]);
+      if (str->reserve(SPIDER_SQL_COLLATE_LEN + length))
+      {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+      str->q_append(SPIDER_SQL_COLLATE_STR, SPIDER_SQL_COLLATE_LEN);
+      str->q_append(mysql_row[4], length);
+    }
+    if (!strcmp(mysql_row[2], "NO"))
+    {
+      if (str->reserve(SPIDER_SQL_NOT_NULL_LEN))
+      {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+      str->q_append(SPIDER_SQL_NOT_NULL_STR, SPIDER_SQL_NOT_NULL_LEN);
+      if (mysql_row[1])
+      {
+        if (str->reserve(SPIDER_SQL_DEFAULT_LEN))
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        str->q_append(SPIDER_SQL_DEFAULT_STR, SPIDER_SQL_DEFAULT_LEN);
+        if (str->append(mysql_row[1], strlen(mysql_row[1]), access_charset))
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+      }
+    } else {
+      if (str->reserve(SPIDER_SQL_DEFAULT_LEN))
+      {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+      str->q_append(SPIDER_SQL_DEFAULT_STR, SPIDER_SQL_DEFAULT_LEN);
+      if (mysql_row[1])
+      {
+        if (str->append(mysql_row[1], strlen(mysql_row[1]), access_charset))
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+      } else {
+        if (str->reserve(SPIDER_SQL_NULL_LEN))
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        str->q_append(SPIDER_SQL_NULL_STR, SPIDER_SQL_NULL_LEN);
+      }
+    }
+    if (mysql_row[6] && !strcmp(mysql_row[6], "auto_increment"))
+    {
+      if (str->reserve(SPIDER_SQL_AUTO_INCREMENT_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_AUTO_INCREMENT_STR, SPIDER_SQL_AUTO_INCREMENT_LEN);
+    }
+    if (str->reserve(SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  } while ((mysql_row = mysql_fetch_row(db_result)));
+  if ((error_num = mysql_errno(((spider_db_mbase *) db_conn)->db_conn)))
+  {
+    my_message(error_num,
+      mysql_error(((spider_db_mbase *) db_conn)->db_conn), MYF(0));
+    DBUG_RETURN(error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_result::fetch_index_for_discover_table_structure(
+  spider_string *str,
+  CHARSET_INFO *access_charset
+) {
+  int error_num;
+  MYSQL_ROW mysql_row;
+  DBUG_ENTER("spider_db_mbase_result::fetch_index_for_discover_table_structure");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!(mysql_row = mysql_fetch_row(db_result)))
+  {
+    DBUG_PRINT("info",("spider fetch row is null"));
+    if ((error_num = mysql_errno(((spider_db_mbase *) db_conn)->db_conn)))
+    {
+      my_message(error_num,
+        mysql_error(((spider_db_mbase *) db_conn)->db_conn), MYF(0));
+      DBUG_RETURN(error_num);
+    }
+    DBUG_RETURN(0);
+  }
+  if (num_fields() != 13)
+  {
+    DBUG_PRINT("info",("spider num_fields != 13"));
+    my_printf_error(ER_SPIDER_UNKNOWN_NUM, ER_SPIDER_UNKNOWN_STR, MYF(0));
+    DBUG_RETURN(ER_SPIDER_UNKNOWN_NUM);
+  }
+  bool first = TRUE;
+  bool without_size = FALSE;
+  bool using_hash = FALSE;
+  do {
+    if (!strcmp(mysql_row[3], "1"))
+    {
+      without_size = FALSE;
+      if (first)
+      {
+        first = FALSE;
+      } else {
+        if (str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN + SPIDER_SQL_COMMA_LEN +
+          (using_hash ? SPIDER_SQL_USING_HASH_LEN : 0)))
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+        if (using_hash)
+          str->q_append(SPIDER_SQL_USING_HASH_STR, SPIDER_SQL_USING_HASH_LEN);
+        str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+      }
+      /* new index */
+      if (!strcmp(mysql_row[2], SPIDER_DB_PK_NAME_STR))
+      {
+        /* primary key */
+        if (str->reserve(SPIDER_DB_PK_NAME_LEN + SPIDER_SQL_SPACE_LEN))
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        str->q_append(SPIDER_DB_PK_NAME_STR, SPIDER_DB_PK_NAME_LEN);
+        str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+      } else if (!strcmp(mysql_row[1], "0"))
+      {
+        /* unique key */
+        if (str->reserve(SPIDER_DB_UNIQUE_NAME_LEN + SPIDER_SQL_SPACE_LEN))
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        str->q_append(SPIDER_DB_UNIQUE_NAME_STR, SPIDER_DB_UNIQUE_NAME_LEN);
+        str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+      } else if (mysql_row[10] && !strcmp(mysql_row[10], "FULLTEXT"))
+      {
+        /* fulltext key */
+        if (str->reserve(SPIDER_SQL_FULLTEXT_LEN + SPIDER_SQL_SPACE_LEN))
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        str->q_append(SPIDER_SQL_FULLTEXT_STR, SPIDER_SQL_FULLTEXT_LEN);
+        str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+      } else if (mysql_row[10] && !strcmp(mysql_row[10], "SPATIAL"))
+      {
+        /* spatial key */
+        without_size = TRUE;
+        if (str->reserve(SPIDER_SQL_SPATIAL_LEN + SPIDER_SQL_SPACE_LEN))
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        str->q_append(SPIDER_SQL_SPATIAL_STR, SPIDER_SQL_SPATIAL_LEN);
+        str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+      }
+      if (str->reserve(SPIDER_DB_KEY_NAME_LEN + SPIDER_SQL_SPACE_LEN))
+      {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+      str->q_append(SPIDER_DB_KEY_NAME_STR, SPIDER_DB_KEY_NAME_LEN);
+      str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+      if (strcmp(mysql_row[2], SPIDER_DB_PK_NAME_STR))
+      {
+        if (str->reserve(SPIDER_SQL_NAME_QUOTE_LEN))
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+        if (str->append(mysql_row[2], strlen(mysql_row[2]), access_charset))
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        if (str->reserve(SPIDER_SQL_NAME_QUOTE_LEN))
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+      }
+      if (str->reserve(SPIDER_SQL_OPEN_PAREN_LEN))
+      {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+      str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+      if (str->reserve(SPIDER_SQL_NAME_QUOTE_LEN))
+      {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+      str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+      if (str->append(mysql_row[4], strlen(mysql_row[4]), access_charset))
+      {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+      if (str->reserve(SPIDER_SQL_NAME_QUOTE_LEN))
+      {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+      str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+      if (mysql_row[7] && !without_size)
+      {
+        if (str->reserve(SPIDER_SQL_OPEN_PAREN_LEN))
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+        if (str->append(mysql_row[7], strlen(mysql_row[7]), access_charset))
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        if (str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN))
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+      }
+    } else {
+      if (str->reserve(SPIDER_SQL_COMMA_LEN + SPIDER_SQL_NAME_QUOTE_LEN))
+      {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+      str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+      str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+      if (str->append(mysql_row[4], strlen(mysql_row[4]), access_charset))
+      {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+      if (str->reserve(SPIDER_SQL_NAME_QUOTE_LEN))
+      {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+      str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+      if (mysql_row[7] && !without_size)
+      {
+        if (str->reserve(SPIDER_SQL_OPEN_PAREN_LEN))
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+        if (str->append(mysql_row[7], strlen(mysql_row[7]), access_charset))
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        if (str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN))
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+      }
+    }
+    if (mysql_row[10] && !strcmp(mysql_row[10], "HASH"))
+      using_hash = TRUE;
+    else
+      using_hash = FALSE;
+  } while ((mysql_row = mysql_fetch_row(db_result)));
+  if ((error_num = mysql_errno(((spider_db_mbase *) db_conn)->db_conn)))
+  {
+    my_message(error_num,
+      mysql_error(((spider_db_mbase *) db_conn)->db_conn), MYF(0));
+    DBUG_RETURN(error_num);
+  }
+  if (!first)
+  {
+    if (str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN + SPIDER_SQL_COMMA_LEN +
+      (using_hash ? SPIDER_SQL_USING_HASH_LEN : 0)))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+    if (using_hash)
+      str->q_append(SPIDER_SQL_USING_HASH_STR, SPIDER_SQL_USING_HASH_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_result::fetch_table_for_discover_table_structure(
+  spider_string *str,
+  SPIDER_SHARE *spider_share,
+  CHARSET_INFO *access_charset
+) {
+  int error_num;
+  MYSQL_ROW mysql_row;
+  DBUG_ENTER("spider_db_mbase_result::fetch_table_for_discover_table_structure");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!(mysql_row = mysql_fetch_row(db_result)))
+  {
+    DBUG_PRINT("info",("spider fetch row is null"));
+    if ((error_num = mysql_errno(((spider_db_mbase *) db_conn)->db_conn)))
+    {
+      my_message(error_num,
+        mysql_error(((spider_db_mbase *) db_conn)->db_conn), MYF(0));
+      DBUG_RETURN(error_num);
+    }
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  if (num_fields() < 18)
+  {
+    DBUG_PRINT("info",("spider num_fields != 18"));
+    my_printf_error(ER_SPIDER_UNKNOWN_NUM, ER_SPIDER_UNKNOWN_STR, MYF(0));
+    DBUG_RETURN(ER_SPIDER_UNKNOWN_NUM);
+  }
+  if (!mysql_row[14])
+  {
+    DBUG_PRINT("info",("spider mysql_row[14] is null"));
+    my_printf_error(ER_SPIDER_UNKNOWN_NUM, ER_SPIDER_UNKNOWN_STR, MYF(0));
+    DBUG_RETURN(ER_SPIDER_UNKNOWN_NUM);
+  }
+  DBUG_PRINT("info",("spider mysql_row[14]=%s", mysql_row[14]));
+  if (!spider_share->table_share->table_charset)
+  {
+    spider_share->table_share->table_charset = get_charset_by_name(mysql_row[14], MYF(MY_WME));
+  }
+  DBUG_RETURN(0);
+}
+#endif
+
+spider_db_mbase::spider_db_mbase(
+  SPIDER_CONN *conn,
+  spider_db_mbase_util *spider_db_mbase_utility
+) : spider_db_conn(conn), spider_db_mbase_utility(spider_db_mbase_utility),
+  lock_table_hash_inited(FALSE), handler_open_array_inited(FALSE)
+{
+  DBUG_ENTER("spider_db_mbase::spider_db_mbase");
+  DBUG_PRINT("info",("spider this=%p", this));
+  db_conn = NULL;
+  DBUG_VOID_RETURN;
+}
+
+spider_db_mysql::spider_db_mysql(
+  SPIDER_CONN *conn
+) : spider_db_mbase(conn, &spider_db_mysql_utility)
+{
+  DBUG_ENTER("spider_db_mysql::spider_db_mysql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_db_mariadb::spider_db_mariadb(
+  SPIDER_CONN *conn
+) : spider_db_mbase(conn, &spider_db_mariadb_utility)
+{
+  DBUG_ENTER("spider_db_mariadb::spider_db_mariadb");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_db_mbase::~spider_db_mbase()
+{
+  DBUG_ENTER("spider_db_mbase::~spider_db_mbase");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (handler_open_array_inited)
+  {
+    reset_opened_handler();
+    spider_free_mem_calc(spider_current_trx,
+      handler_open_array_id,
+      handler_open_array.max_element *
+      handler_open_array.size_of_element);
+    delete_dynamic(&handler_open_array);
+  }
+  if (lock_table_hash_inited)
+  {
+    spider_free_mem_calc(spider_current_trx,
+      lock_table_hash_id,
+      lock_table_hash.array.max_element *
+      lock_table_hash.array.size_of_element);
+    my_hash_free(&lock_table_hash);
+  }
+  DBUG_VOID_RETURN;
+}
+
+spider_db_mysql::~spider_db_mysql()
+{
+  DBUG_ENTER("spider_db_mysql::~spider_db_mysql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_db_mariadb::~spider_db_mariadb()
+{
+  DBUG_ENTER("spider_db_mariadb::~spider_db_mariadb");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+int spider_db_mbase::init()
+{
+  DBUG_ENTER("spider_db_mbase::init");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (
+    my_hash_init(PSI_INSTRUMENT_ME, &lock_table_hash, spd_charset_utf8mb3_bin, 32, 0, 0,
+      (my_hash_get_key) spider_link_get_key, 0, 0)
+  ) {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  spider_alloc_calc_mem_init(lock_table_hash, 140);
+  spider_alloc_calc_mem(spider_current_trx,
+    lock_table_hash,
+    lock_table_hash.array.max_element *
+    lock_table_hash.array.size_of_element);
+  lock_table_hash_inited = TRUE;
+
+  if (
+    SPD_INIT_DYNAMIC_ARRAY2(&handler_open_array,
+      sizeof(SPIDER_LINK_FOR_HASH *), NULL, 16, 16, MYF(MY_WME))
+  ) {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  spider_alloc_calc_mem_init(handler_open_array, 162);
+  spider_alloc_calc_mem(spider_current_trx,
+    handler_open_array,
+    handler_open_array.max_element *
+    handler_open_array.size_of_element);
+  handler_open_array_inited = TRUE;
+  DBUG_RETURN(0);
+}
+
+bool spider_db_mbase::is_connected()
+{
+  DBUG_ENTER("spider_db_mbase::is_connected");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(db_conn);
+}
+
+void spider_db_mbase::bg_connect()
+{
+  DBUG_ENTER("spider_db_mbase::bg_connect");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+int spider_db_mbase::connect(
+  char *tgt_host,
+  char *tgt_username,
+  char *tgt_password,
+  long tgt_port,
+  char *tgt_socket,
+  char *server_name,
+  int connect_retry_count,
+  longlong connect_retry_interval
+) {
+  int error_num;
+  my_bool connect_mutex = spider_param_connect_mutex();
+  DBUG_ENTER("spider_db_mbase::connect");
+  DBUG_PRINT("info",("spider this=%p", this));
+  while (TRUE)
+  {
+    THD *thd = current_thd;
+    DBUG_PRINT("info",("spider thd->killed=%s",
+      thd ? (thd->killed ? "TRUE" : "FALSE") : "NULL"));
+    DBUG_PRINT("info",("spider abort_loop=%s",
+      *spd_abort_loop ? "TRUE" : "FALSE"));
+    if (
+      (thd && thd->killed) ||
+      *spd_abort_loop
+    ) {
+      DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+    }
+
+    if (!db_conn)
+    {
+      if (!(db_conn = mysql_init(NULL)))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+
+    mysql_options(db_conn, MYSQL_OPT_READ_TIMEOUT,
+      &conn->net_read_timeout);
+    mysql_options(db_conn, MYSQL_OPT_WRITE_TIMEOUT,
+      &conn->net_write_timeout);
+    mysql_options(db_conn, MYSQL_OPT_CONNECT_TIMEOUT,
+      &conn->connect_timeout);
+    mysql_options(db_conn, MYSQL_OPT_USE_REMOTE_CONNECTION,
+      NULL);
+
+    if (
+      conn->tgt_ssl_ca_length |
+      conn->tgt_ssl_capath_length |
+      conn->tgt_ssl_cert_length |
+      conn->tgt_ssl_key_length
+    ) {
+      mysql_ssl_set(db_conn, conn->tgt_ssl_key, conn->tgt_ssl_cert,
+        conn->tgt_ssl_ca, conn->tgt_ssl_capath, conn->tgt_ssl_cipher);
+      if (conn->tgt_ssl_vsc)
+      {
+        my_bool verify_flg = TRUE;
+        mysql_options(db_conn, MYSQL_OPT_SSL_VERIFY_SERVER_CERT,
+          &verify_flg);
+      }
+    }
+
+    if (conn->tgt_default_file)
+    {
+      DBUG_PRINT("info",("spider tgt_default_file=%s",
+        conn->tgt_default_file));
+      mysql_options(db_conn, MYSQL_READ_DEFAULT_FILE,
+        conn->tgt_default_file);
+    }
+    if (conn->tgt_default_group)
+    {
+      DBUG_PRINT("info",("spider tgt_default_group=%s",
+        conn->tgt_default_group));
+      mysql_options(db_conn, MYSQL_READ_DEFAULT_GROUP,
+        conn->tgt_default_group);
+    }
+
+    if (!spider_param_same_server_link(thd))
+    {
+      if (!strcmp(tgt_host, my_localhost))
+      {
+        if (!strcmp(tgt_socket, *spd_mysqld_unix_port))
+        {
+          my_printf_error(ER_SPIDER_SAME_SERVER_LINK_NUM,
+            ER_SPIDER_SAME_SERVER_LINK_STR1, MYF(0),
+            tgt_host, tgt_socket);
+          DBUG_RETURN(ER_SPIDER_SAME_SERVER_LINK_NUM);
+        }
+      } else if (!strcmp(tgt_host, "127.0.0.1") ||
+        !strcmp(tgt_host, glob_hostname))
+      {
+        if (tgt_port == (long) *spd_mysqld_port)
+        {
+          my_printf_error(ER_SPIDER_SAME_SERVER_LINK_NUM,
+            ER_SPIDER_SAME_SERVER_LINK_STR2, MYF(0),
+            tgt_host, tgt_port);
+          DBUG_RETURN(ER_SPIDER_SAME_SERVER_LINK_NUM);
+        }
+      }
+    }
+
+    if (connect_mutex)
+      pthread_mutex_lock(&spider_open_conn_mutex);
+    /* tgt_db not use */
+    if (
+      !spider_param_dry_access() &&
+      !mysql_real_connect(
+        db_conn,
+        tgt_host,
+        tgt_username,
+        tgt_password,
+        NULL,
+        tgt_port,
+        tgt_socket,
+        CLIENT_MULTI_STATEMENTS
+      )
+    ) {
+      if (connect_mutex)
+        pthread_mutex_unlock(&spider_open_conn_mutex);
+      error_num = mysql_errno(db_conn);
+      disconnect();
+      DBUG_PRINT("info",("spider thd->killed=%s",
+        thd ? (thd->killed ? "TRUE" : "FALSE") : "NULL"));
+      DBUG_PRINT("info",("spider abort_loop=%s",
+        *spd_abort_loop ? "TRUE" : "FALSE"));
+      if (
+        (thd && thd->killed) ||
+        *spd_abort_loop
+      ) {
+        DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+      }
+      if (
+        (
+          error_num != CR_CONN_HOST_ERROR &&
+          error_num != CR_CONNECTION_ERROR
+        ) ||
+        !connect_retry_count
+      ) {
+        if (error_num == ER_CON_COUNT_ERROR)
+        {
+          *conn->need_mon = 0;
+          my_error(ER_CON_COUNT_ERROR, MYF(0));
+          DBUG_RETURN(ER_CON_COUNT_ERROR);
+        }
+        *conn->need_mon = ER_CONNECT_TO_FOREIGN_DATA_SOURCE;
+        my_error(ER_CONNECT_TO_FOREIGN_DATA_SOURCE, MYF(0),
+          server_name ? server_name : tgt_host);
+        DBUG_RETURN(ER_CONNECT_TO_FOREIGN_DATA_SOURCE);
+      }
+      connect_retry_count--;
+      my_sleep((ulong) connect_retry_interval);
+    } else {
+#ifdef SPIDER_NET_HAS_THD
+      db_conn->net.thd = NULL;
+#endif
+      if (connect_mutex)
+        pthread_mutex_unlock(&spider_open_conn_mutex);
+      break;
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase::ping(
+) {
+  DBUG_ENTER("spider_db_mbase::ping");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (spider_param_dry_access())
+    DBUG_RETURN(0);
+  DBUG_RETURN(simple_command(db_conn, COM_PING, 0, 0, 0));
+}
+
+void spider_db_mbase::bg_disconnect()
+{
+  DBUG_ENTER("spider_db_mbase::bg_disconnect");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+void spider_db_mbase::disconnect()
+{
+  DBUG_ENTER("spider_db_mbase::disconnect");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider db_conn=%p", db_conn));
+  if (db_conn)
+  {
+    mysql_close(db_conn);
+    db_conn = NULL;
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_db_mbase::set_net_timeout()
+{
+  DBUG_ENTER("spider_db_mbase::set_net_timeout");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider conn=%p", conn));
+  my_net_set_read_timeout(&db_conn->net, conn->net_read_timeout);
+  my_net_set_write_timeout(&db_conn->net, conn->net_write_timeout);
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase::exec_query(
+  const char *query,
+  uint length,
+  int quick_mode
+) {
+  int error_num = 0;
+  uint log_result_errors = spider_param_log_result_errors();
+  DBUG_ENTER("spider_db_mbase::exec_query");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (spider_param_general_log())
+  {
+    const char *tgt_str = conn->tgt_host;
+    uint32 tgt_len = conn->tgt_host_length;
+    spider_string tmp_query_str;
+    tmp_query_str.init_calc_mem(230);
+    if (tmp_query_str.reserve(
+      length + conn->tgt_wrapper_length +
+      tgt_len + (SPIDER_SQL_SPACE_LEN * 2)))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    tmp_query_str.q_append(conn->tgt_wrapper, conn->tgt_wrapper_length);
+    tmp_query_str.q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+    tmp_query_str.q_append(tgt_str, tgt_len);
+    tmp_query_str.q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+    tmp_query_str.q_append(query, length);
+    general_log_write(current_thd, COM_QUERY, tmp_query_str.ptr(),
+      tmp_query_str.length());
+  }
+  if (!spider_param_dry_access())
+  {
+    error_num = mysql_real_query(db_conn, query, length);
+  }
+  if (
+    (error_num && log_result_errors >= 1) ||
+    (log_result_errors >= 2 && db_conn->warning_count > 0) ||
+    (log_result_errors >= 4)
+  ) {
+    THD *thd = current_thd;
+    uint log_result_error_with_sql = spider_param_log_result_error_with_sql();
+    if (log_result_error_with_sql)
+    {
+      time_t cur_time = (time_t) time((time_t*) 0);
+      struct tm lt;
+      struct tm *l_time = localtime_r(&cur_time, &lt);
+      spider_string tmp_query_str;
+      tmp_query_str.init_calc_mem(243);
+      uint query_length = thd->query_length();
+      if ((log_result_error_with_sql & 2) && query_length)
+      {
+        Security_context *security_ctx = thd->security_ctx;
+        tmp_query_str.length(0);
+        if (tmp_query_str.reserve(query_length + 1))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        tmp_query_str.q_append(thd->query(), query_length);
+        fprintf(stderr, "%04d%02d%02d %02d:%02d:%02d [RECV SPIDER SQL] "
+          "from [%s][%s] to %ld:  "
+          "sql: %s\n",
+          l_time->tm_year + 1900, l_time->tm_mon + 1, l_time->tm_mday,
+          l_time->tm_hour, l_time->tm_min, l_time->tm_sec,
+          security_ctx->user ? security_ctx->user : "system user",
+          security_ctx->host_or_ip,
+          (ulong) thd->thread_id,
+          tmp_query_str.c_ptr_safe());
+      }
+      if (log_result_error_with_sql & 1)
+      {
+        tmp_query_str.length(0);
+        if (tmp_query_str.reserve(length + 1))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        tmp_query_str.q_append(query, length);
+        fprintf(stderr, "%04d%02d%02d %02d:%02d:%02d [SEND SPIDER SQL] "
+          "from %ld to [%s] %ld:  "
+          "sql: %s\n",
+          l_time->tm_year + 1900, l_time->tm_mon + 1, l_time->tm_mday,
+          l_time->tm_hour, l_time->tm_min, l_time->tm_sec,
+          (ulong) thd->thread_id, conn->tgt_host, (ulong) db_conn->thread_id,
+          tmp_query_str.c_ptr_safe());
+      }
+    }
+    if (log_result_errors >= 2 && db_conn->warning_count > 0)
+    {
+      time_t cur_time = (time_t) time((time_t*) 0);
+      struct tm lt;
+      struct tm *l_time = localtime_r(&cur_time, &lt);
+      fprintf(stderr, "%04d%02d%02d %02d:%02d:%02d [WARN SPIDER RESULT] "
+        "from [%s] %ld to %ld:  "
+        "affected_rows: %llu  id: %llu  status: %u  warning_count: %u\n",
+        l_time->tm_year + 1900, l_time->tm_mon + 1, l_time->tm_mday,
+        l_time->tm_hour, l_time->tm_min, l_time->tm_sec,
+        conn->tgt_host, (ulong) db_conn->thread_id, (ulong) thd->thread_id,
+        db_conn->affected_rows, db_conn->insert_id,
+        db_conn->server_status, db_conn->warning_count);
+      if (spider_param_log_result_errors() >= 3)
+        print_warnings(l_time);
+    } else if (log_result_errors >= 4)
+    {
+      time_t cur_time = (time_t) time((time_t*) 0);
+      struct tm lt;
+      struct tm *l_time = localtime_r(&cur_time, &lt);
+      fprintf(stderr, "%04d%02d%02d %02d:%02d:%02d [INFO SPIDER RESULT] "
+        "from [%s] %ld to %ld:  "
+        "affected_rows: %llu  id: %llu  status: %u  warning_count: %u\n",
+        l_time->tm_year + 1900, l_time->tm_mon + 1, l_time->tm_mday,
+        l_time->tm_hour, l_time->tm_min, l_time->tm_sec,
+        conn->tgt_host, (ulong) db_conn->thread_id, (ulong) thd->thread_id,
+        db_conn->affected_rows, db_conn->insert_id,
+        db_conn->server_status, db_conn->warning_count);
+    }
+  }
+  DBUG_RETURN(error_num);
+}
+
+int spider_db_mbase::get_errno()
+{
+  DBUG_ENTER("spider_db_mbase::get_errno");
+  DBUG_PRINT("info",("spider this=%p", this));
+  stored_error = mysql_errno(db_conn);
+  DBUG_PRINT("info",("spider stored_error=%d", stored_error));
+  DBUG_RETURN(stored_error);
+}
+
+const char *spider_db_mbase::get_error()
+{
+  const char *error_ptr;
+  DBUG_ENTER("spider_db_mbase::get_error");
+  DBUG_PRINT("info",("spider this=%p", this));
+  error_ptr = mysql_error(db_conn);
+  DBUG_PRINT("info",("spider error=%s", error_ptr));
+  DBUG_RETURN(error_ptr);
+}
+
+bool spider_db_mbase::is_server_gone_error(
+  int error_num
+) {
+  bool server_gone;
+  DBUG_ENTER("spider_db_mbase::is_server_gone_error");
+  DBUG_PRINT("info",("spider this=%p", this));
+  server_gone =
+    (error_num == CR_SERVER_GONE_ERROR || error_num == CR_SERVER_LOST);
+  DBUG_PRINT("info",("spider server_gone=%s", server_gone ? "TRUE" : "FALSE"));
+  DBUG_RETURN(server_gone);
+}
+
+bool spider_db_mbase::is_dup_entry_error(
+  int error_num
+) {
+  bool dup_entry;
+  DBUG_ENTER("spider_db_mbase::is_dup_entry_error");
+  DBUG_PRINT("info",("spider this=%p", this));
+  dup_entry =
+    (
+      error_num == ER_DUP_ENTRY ||
+      error_num == ER_DUP_KEY ||
+      error_num == HA_ERR_FOUND_DUPP_KEY
+    );
+  DBUG_PRINT("info",("spider dup_entry=%s", dup_entry ? "TRUE" : "FALSE"));
+  DBUG_RETURN(dup_entry);
+}
+
+bool spider_db_mbase::is_xa_nota_error(
+  int error_num
+) {
+  bool xa_nota;
+  DBUG_ENTER("spider_db_mbase::is_xa_nota_error");
+  DBUG_PRINT("info",("spider this=%p", this));
+  xa_nota =
+    (
+      error_num == ER_XAER_NOTA ||
+      error_num == ER_XA_RBTIMEOUT ||
+      error_num == ER_XA_RBDEADLOCK
+    );
+  DBUG_PRINT("info",("spider xa_nota=%s", xa_nota ? "TRUE" : "FALSE"));
+  DBUG_RETURN(xa_nota);
+}
+
+int spider_db_mbase::print_warnings(
+  struct tm *l_time
+) {
+  int error_num = 0;
+  DBUG_ENTER("spider_db_mbase::print_warnings");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (db_conn->status == MYSQL_STATUS_READY)
+  {
+    if (
+#if MYSQL_VERSION_ID < 50500
+      !(db_conn->last_used_con->server_status & SERVER_MORE_RESULTS_EXISTS) &&
+      db_conn->last_used_con->warning_count
+#else
+      !(db_conn->server_status & SERVER_MORE_RESULTS_EXISTS) &&
+      db_conn->warning_count
+#endif
+    ) {
+      if (
+        spider_param_dry_access() ||
+        !mysql_real_query(db_conn, SPIDER_SQL_SHOW_WARNINGS_STR,
+          SPIDER_SQL_SHOW_WARNINGS_LEN)
+      ) {
+        MYSQL_RES *res = NULL;
+        MYSQL_ROW row = NULL;
+        uint num_fields;
+        if (
+          spider_param_dry_access() ||
+          !(res = mysql_store_result(db_conn)) ||
+          !(row = mysql_fetch_row(res))
+        ) {
+          if (mysql_errno(db_conn))
+          {
+            if (res)
+              mysql_free_result(res);
+            DBUG_RETURN(0);
+          }
+          /* no record is ok */
+        }
+        num_fields = mysql_num_fields(res);
+        if (num_fields != 3)
+        {
+          mysql_free_result(res);
+          DBUG_RETURN(0);
+        }
+        if (l_time)
+        {
+          while (row)
+          {
+            fprintf(stderr, "%04d%02d%02d %02d:%02d:%02d [WARN SPIDER RESULT] "
+              "from [%s] %ld to %ld: %s %s %s\n",
+              l_time->tm_year + 1900, l_time->tm_mon + 1, l_time->tm_mday,
+              l_time->tm_hour, l_time->tm_min, l_time->tm_sec,
+              conn->tgt_host, (ulong) db_conn->thread_id,
+              (ulong) current_thd->thread_id, row[0], row[1], row[2]);
+            row = mysql_fetch_row(res);
+          }
+        } else {
+          while (row)
+          {
+            DBUG_PRINT("info",("spider row[0]=%s", row[0]));
+            DBUG_PRINT("info",("spider row[1]=%s", row[1]));
+            DBUG_PRINT("info",("spider row[2]=%s", row[2]));
+            longlong res_num =
+              (longlong) my_strtoll10(row[1], (char**) NULL, &error_num);
+            DBUG_PRINT("info",("spider res_num=%lld", res_num));
+            my_printf_error((int) res_num, row[2], MYF(0));
+            error_num = (int) res_num;
+            row = mysql_fetch_row(res);
+          }
+        }
+        if (res)
+          mysql_free_result(res);
+      }
+    }
+  }
+  DBUG_RETURN(error_num);
+}
+
+spider_db_result *spider_db_mbase::store_result(
+  spider_db_result_buffer **spider_res_buf,
+  st_spider_db_request_key *request_key,
+  int *error_num
+) {
+  spider_db_mbase_result *result;
+  DBUG_ENTER("spider_db_mbase::store_result");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(!spider_res_buf);
+  if ((result = new spider_db_mbase_result(this)))
+  {
+    *error_num = 0;
+    if (
+      spider_param_dry_access() ||
+      !(result->db_result = mysql_store_result(db_conn))
+    ) {
+      delete result;
+      result = NULL;
+    } else {
+      result->first_row = result->db_result->data_cursor;
+      DBUG_PRINT("info",("spider result->first_row=%p", result->first_row));
+    }
+  } else {
+    *error_num = HA_ERR_OUT_OF_MEM;
+  }
+  DBUG_RETURN(result);
+}
+
+spider_db_result *spider_db_mbase::use_result(
+  ha_spider *spider,
+  st_spider_db_request_key *request_key,
+  int *error_num
+) {
+  spider_db_mbase_result *result;
+  DBUG_ENTER("spider_db_mbase::use_result");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if ((result = new spider_db_mbase_result(this)))
+  {
+    *error_num = 0;
+    if (
+      spider_param_dry_access() ||
+      !(result->db_result = db_conn->methods->use_result(db_conn))
+    ) {
+      delete result;
+      result = NULL;
+    } else {
+      result->first_row = NULL;
+    }
+  } else {
+    *error_num = HA_ERR_OUT_OF_MEM;
+  }
+  DBUG_RETURN(result);
+}
+
+int spider_db_mbase::next_result()
+{
+  int status;
+  DBUG_ENTER("spider_db_mbase::next_result");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (db_conn->status != MYSQL_STATUS_READY)
+  {
+    my_message(ER_SPIDER_UNKNOWN_NUM, ER_SPIDER_UNKNOWN_STR, MYF(0));
+    DBUG_RETURN(ER_SPIDER_UNKNOWN_NUM);
+  }
+
+  db_conn->net.last_errno = 0;
+  db_conn->net.last_error[0] = '\0';
+  strmov(db_conn->net.sqlstate, "00000");
+  db_conn->affected_rows = ~(my_ulonglong) 0;
+
+#if MYSQL_VERSION_ID < 50500
+  if (db_conn->last_used_con->server_status & SERVER_MORE_RESULTS_EXISTS)
+#else
+  if (db_conn->server_status & SERVER_MORE_RESULTS_EXISTS)
+#endif
+  {
+    if ((status = db_conn->methods->read_query_result(db_conn)) > 0)
+      DBUG_RETURN(spider_db_errorno(conn));
+    DBUG_RETURN(status);
+  }
+  DBUG_RETURN(-1);
+}
+
+uint spider_db_mbase::affected_rows()
+{
+  MYSQL *last_used_con;
+  DBUG_ENTER("spider_db_mbase::affected_rows");
+  DBUG_PRINT("info",("spider this=%p", this));
+#if MYSQL_VERSION_ID < 50500
+  last_used_con = db_conn->last_used_con;
+#else
+  last_used_con = db_conn;
+#endif
+  DBUG_RETURN((uint) last_used_con->affected_rows);
+}
+
+uint spider_db_mbase::matched_rows()
+{
+  MYSQL *last_used_con;
+  DBUG_ENTER("spider_db_mysql::matched_rows");
+  DBUG_PRINT("info", ("spider this=%p", this));
+#if MYSQL_VERSION_ID < 50500
+  last_used_con = db_conn->last_used_con;
+#else
+  last_used_con = db_conn;
+#endif
+  /* Rows matched: 65 Changed: 65 Warnings: 0 */
+  const char *info = last_used_con->info;
+  if (!info)
+    DBUG_RETURN(0);
+  DBUG_PRINT("info", ("spider info=%s", info));
+  const char *begin = strstr(info, "Rows matched: ");
+  if (!begin)
+    DBUG_RETURN(0);
+  DBUG_RETURN(atoi(begin + strlen("Rows matched: ")));
+}
+
+bool spider_db_mbase::inserted_info(
+  spider_db_handler *handler,
+  ha_copy_info *copy_info
+) {
+  MYSQL *last_used_con;
+  uchar direct_insert_kind =
+    ((spider_mbase_handler *) handler)->direct_insert_kind;
+  DBUG_ENTER("spider_db_mysql::inserted_info");
+  DBUG_PRINT("info", ("spider this=%p", this));
+  if (direct_insert_kind == SPIDER_SQL_DIRECT_INSERT_KIND_INSERT)
+  {
+    DBUG_RETURN(TRUE);
+  }
+#if MYSQL_VERSION_ID < 50500
+  last_used_con = db_conn->last_used_con;
+#else
+  last_used_con = db_conn;
+#endif
+  /* Records: 10  Duplicates: 4  Warnings: 0 */
+  const char *info = last_used_con->info;
+  if (!info)
+    DBUG_RETURN(FALSE);
+  DBUG_PRINT("info", ("spider info=%s", info));
+  const char *begin = strstr(info, "Records: ");
+  if (!begin)
+    DBUG_RETURN(FALSE);
+  begin += strlen("Records: ");
+  uint records = atoi(begin);
+  begin = strstr(begin, "Duplicates: ");
+  if (!begin)
+    DBUG_RETURN(FALSE);
+  uint duplicates = atoi(begin + strlen("Duplicates: "));
+  copy_info->records+= records;
+  switch (direct_insert_kind)
+  {
+    case SPIDER_SQL_DIRECT_INSERT_KIND_IGNORE:
+      copy_info->copied+= duplicates;
+      break;
+    case SPIDER_SQL_DIRECT_INSERT_KIND_REPLACE:
+      copy_info->copied+= records;
+      copy_info->deleted+= duplicates;
+      break;
+    case SPIDER_SQL_DIRECT_INSERT_KIND_DUP_UPDATE:
+      copy_info->touched+= (last_used_con->affected_rows - (duplicates * 2));
+      copy_info->copied+= (last_used_con->affected_rows - duplicates);
+      copy_info->updated+= duplicates;
+      break;
+    default:
+      DBUG_ASSERT(0);
+      DBUG_RETURN(FALSE);
+  }
+  DBUG_RETURN(TRUE);
+}
+
+ulonglong spider_db_mbase::last_insert_id()
+{
+  MYSQL *last_used_con;
+  DBUG_ENTER("spider_db_mbase::last_insert_id");
+  DBUG_PRINT("info",("spider this=%p", this));
+#if MYSQL_VERSION_ID < 50500
+  last_used_con = db_conn->last_used_con;
+#else
+  last_used_con = db_conn;
+#endif
+  DBUG_RETURN((uint) last_used_con->insert_id);
+}
+
+int spider_db_mbase::set_character_set(
+  const char *csname
+) {
+  DBUG_ENTER("spider_db_mbase::set_character_set");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (spider_param_dry_access())
+    DBUG_RETURN(0);
+  DBUG_RETURN(mysql_set_character_set(db_conn, csname));
+}
+
+int spider_db_mbase::select_db(
+  const char *dbname
+) {
+  DBUG_ENTER("spider_db_mbase::select_db");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (spider_param_dry_access())
+    DBUG_RETURN(0);
+  DBUG_RETURN(mysql_select_db(db_conn, dbname));
+}
+
+int spider_db_mbase::consistent_snapshot(
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_mbase::consistent_snapshot");
+  DBUG_PRINT("info",("spider this=%p", this));
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = need_mon;
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  if (spider_db_query(
+    conn,
+    SPIDER_SQL_START_CONSISTENT_SNAPSHOT_STR,
+    SPIDER_SQL_START_CONSISTENT_SNAPSHOT_LEN,
+    -1,
+    need_mon)
+  ) {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    DBUG_RETURN(spider_db_errorno(conn));
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  DBUG_RETURN(0);
+}
+
+bool spider_db_mbase::trx_start_in_bulk_sql()
+{
+  DBUG_ENTER("spider_db_mbase::trx_start_in_bulk_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(TRUE);
+}
+
+int spider_db_mbase::start_transaction(
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_mbase::start_transaction");
+  DBUG_PRINT("info",("spider this=%p", this));
+  pthread_mutex_assert_owner(&conn->mta_conn_mutex);
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  if (spider_db_query(
+    conn,
+    SPIDER_SQL_START_TRANSACTION_STR,
+    SPIDER_SQL_START_TRANSACTION_LEN,
+    -1,
+    need_mon)
+  ) {
+    DBUG_RETURN(spider_db_errorno(conn));
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase::commit(
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_mbase::commit");
+  DBUG_PRINT("info",("spider this=%p", this));
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = need_mon;
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  if (spider_db_query(
+    conn,
+    SPIDER_SQL_COMMIT_STR,
+    SPIDER_SQL_COMMIT_LEN,
+    -1,
+    need_mon)
+  ) {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    DBUG_RETURN(spider_db_errorno(conn));
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase::rollback(
+  int *need_mon
+) {
+  bool is_error;
+  int error_num;
+  DBUG_ENTER("spider_db_mbase::rollback");
+  DBUG_PRINT("info",("spider this=%p", this));
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = need_mon;
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  if (spider_db_query(
+    conn,
+    SPIDER_SQL_ROLLBACK_STR,
+    SPIDER_SQL_ROLLBACK_LEN,
+    -1,
+    need_mon)
+  ) {
+    is_error = conn->thd->is_error();
+    error_num = spider_db_errorno(conn);
+    if (
+      error_num == ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM &&
+      !is_error
+    )
+      conn->thd->clear_error();
+    else {
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase::xa_start(
+  XID *xid,
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_mbase::xa_start");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+bool spider_db_mbase::xa_start_in_bulk_sql()
+{
+  DBUG_ENTER("spider_db_mbase::xa_start_in_bulk_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(TRUE);
+}
+
+int spider_db_mbase::xa_end(
+  XID *xid,
+  int *need_mon
+) {
+  char sql_buf[SPIDER_SQL_XA_END_LEN + XIDDATASIZE + sizeof(long) + 9];
+  spider_string sql_str(sql_buf, sizeof(sql_buf), &my_charset_bin);
+  DBUG_ENTER("spider_db_mbase::xa_end");
+  DBUG_PRINT("info",("spider this=%p", this));
+  sql_str.init_calc_mem(108);
+
+  sql_str.length(0);
+  sql_str.q_append(SPIDER_SQL_XA_END_STR, SPIDER_SQL_XA_END_LEN);
+  spider_db_append_xid_str(&sql_str, xid);
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = need_mon;
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  if (spider_db_query(
+    conn,
+    sql_str.ptr(),
+    sql_str.length(),
+    -1,
+    need_mon)
+  ) {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    DBUG_RETURN(spider_db_errorno(conn));
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase::xa_prepare(
+  XID *xid,
+  int *need_mon
+) {
+  char sql_buf[SPIDER_SQL_XA_PREPARE_LEN + XIDDATASIZE + sizeof(long) + 9];
+  spider_string sql_str(sql_buf, sizeof(sql_buf), &my_charset_bin);
+  DBUG_ENTER("spider_db_mbase::xa_prepare");
+  DBUG_PRINT("info",("spider this=%p", this));
+  sql_str.init_calc_mem(109);
+
+  sql_str.length(0);
+  sql_str.q_append(SPIDER_SQL_XA_PREPARE_STR, SPIDER_SQL_XA_PREPARE_LEN);
+  spider_db_append_xid_str(&sql_str, xid);
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = need_mon;
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  if (spider_db_query(
+    conn,
+    sql_str.ptr(),
+    sql_str.length(),
+    -1,
+    need_mon)
+  ) {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    DBUG_RETURN(spider_db_errorno(conn));
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase::xa_commit(
+  XID *xid,
+  int *need_mon
+) {
+  char sql_buf[SPIDER_SQL_XA_COMMIT_LEN + XIDDATASIZE + sizeof(long) + 9];
+  spider_string sql_str(sql_buf, sizeof(sql_buf), &my_charset_bin);
+  DBUG_ENTER("spider_db_mbase::xa_commit");
+  DBUG_PRINT("info",("spider this=%p", this));
+  sql_str.init_calc_mem(110);
+
+  sql_str.length(0);
+  sql_str.q_append(SPIDER_SQL_XA_COMMIT_STR, SPIDER_SQL_XA_COMMIT_LEN);
+  spider_db_append_xid_str(&sql_str, xid);
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = need_mon;
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  if (spider_db_query(
+    conn,
+    sql_str.ptr(),
+    sql_str.length(),
+    -1,
+    need_mon)
+  ) {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    DBUG_RETURN(spider_db_errorno(conn));
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase::xa_rollback(
+  XID *xid,
+  int *need_mon
+) {
+  char sql_buf[SPIDER_SQL_XA_ROLLBACK_LEN + XIDDATASIZE + sizeof(long) + 9];
+  spider_string sql_str(sql_buf, sizeof(sql_buf), &my_charset_bin);
+  DBUG_ENTER("spider_db_mbase::xa_rollback");
+  DBUG_PRINT("info",("spider this=%p", this));
+  sql_str.init_calc_mem(111);
+
+  sql_str.length(0);
+  sql_str.q_append(SPIDER_SQL_XA_ROLLBACK_STR, SPIDER_SQL_XA_ROLLBACK_LEN);
+  spider_db_append_xid_str(&sql_str, xid);
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = need_mon;
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  if (spider_db_query(
+    conn,
+    sql_str.ptr(),
+    sql_str.length(),
+    -1,
+    need_mon)
+  ) {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    DBUG_RETURN(spider_db_errorno(conn));
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  DBUG_RETURN(0);
+}
+
+bool spider_db_mbase::set_trx_isolation_in_bulk_sql()
+{
+  DBUG_ENTER("spider_db_mbase::set_trx_isolation_in_bulk_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(TRUE);
+}
+
+int spider_db_mbase::set_trx_isolation(
+  int trx_isolation,
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_mbase::set_trx_isolation");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (trx_isolation)
+  {
+    case ISO_READ_UNCOMMITTED:
+      pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+      pthread_mutex_lock(&conn->mta_conn_mutex);
+      SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      conn->need_mon = need_mon;
+      DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = TRUE;
+      conn->mta_conn_mutex_unlock_later = TRUE;
+      if (spider_db_query(
+        conn,
+        SPIDER_SQL_ISO_READ_UNCOMMITTED_STR,
+        SPIDER_SQL_ISO_READ_UNCOMMITTED_LEN,
+        -1,
+        need_mon)
+      ) {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        DBUG_RETURN(spider_db_errorno(conn));
+      }
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      break;
+    case ISO_READ_COMMITTED:
+      pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+      pthread_mutex_lock(&conn->mta_conn_mutex);
+      SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      conn->need_mon = need_mon;
+      DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = TRUE;
+      conn->mta_conn_mutex_unlock_later = TRUE;
+      if (spider_db_query(
+        conn,
+        SPIDER_SQL_ISO_READ_COMMITTED_STR,
+        SPIDER_SQL_ISO_READ_COMMITTED_LEN,
+        -1,
+        need_mon)
+      ) {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        DBUG_RETURN(spider_db_errorno(conn));
+      }
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      break;
+    case ISO_REPEATABLE_READ:
+      pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+      pthread_mutex_lock(&conn->mta_conn_mutex);
+      SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      conn->need_mon = need_mon;
+      DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = TRUE;
+      conn->mta_conn_mutex_unlock_later = TRUE;
+      if (spider_db_query(
+        conn,
+        SPIDER_SQL_ISO_REPEATABLE_READ_STR,
+        SPIDER_SQL_ISO_REPEATABLE_READ_LEN,
+        -1,
+        need_mon)
+      ) {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        DBUG_RETURN(spider_db_errorno(conn));
+      }
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      break;
+    case ISO_SERIALIZABLE:
+      pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+      pthread_mutex_lock(&conn->mta_conn_mutex);
+      SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      conn->need_mon = need_mon;
+      DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = TRUE;
+      conn->mta_conn_mutex_unlock_later = TRUE;
+      if (spider_db_query(
+        conn,
+        SPIDER_SQL_ISO_SERIALIZABLE_STR,
+        SPIDER_SQL_ISO_SERIALIZABLE_LEN,
+        -1,
+        need_mon)
+      ) {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        DBUG_RETURN(spider_db_errorno(conn));
+      }
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      break;
+    default:
+      DBUG_RETURN(HA_ERR_UNSUPPORTED);
+  }
+  DBUG_RETURN(0);
+}
+
+bool spider_db_mbase::set_autocommit_in_bulk_sql()
+{
+  DBUG_ENTER("spider_db_mbase::set_autocommit_in_bulk_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(TRUE);
+}
+
+int spider_db_mbase::set_autocommit(
+  bool autocommit,
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_mbase::set_autocommit");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (autocommit)
+  {
+    pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+    pthread_mutex_lock(&conn->mta_conn_mutex);
+    SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    conn->need_mon = need_mon;
+    DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = TRUE;
+    conn->mta_conn_mutex_unlock_later = TRUE;
+    if (spider_db_query(
+      conn,
+      SPIDER_SQL_AUTOCOMMIT_ON_STR,
+      SPIDER_SQL_AUTOCOMMIT_ON_LEN,
+      -1,
+      need_mon)
+    ) {
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      DBUG_RETURN(spider_db_errorno(conn));
+    }
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+  } else {
+    pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+    pthread_mutex_lock(&conn->mta_conn_mutex);
+    SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    conn->need_mon = need_mon;
+    DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = TRUE;
+    conn->mta_conn_mutex_unlock_later = TRUE;
+    if (spider_db_query(
+      conn,
+      SPIDER_SQL_AUTOCOMMIT_OFF_STR,
+      SPIDER_SQL_AUTOCOMMIT_OFF_LEN,
+      -1,
+      need_mon)
+    ) {
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      DBUG_RETURN(spider_db_errorno(conn));
+    }
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+  }
+  DBUG_RETURN(0);
+}
+
+bool spider_db_mbase::set_sql_log_off_in_bulk_sql()
+{
+  DBUG_ENTER("spider_db_mbase::set_sql_log_off_in_bulk_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(TRUE);
+}
+
+int spider_db_mbase::set_sql_log_off(
+  bool sql_log_off,
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_mbase::set_sql_log_off");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql_log_off)
+  {
+    pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+    pthread_mutex_lock(&conn->mta_conn_mutex);
+    SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    conn->need_mon = need_mon;
+    DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = TRUE;
+    conn->mta_conn_mutex_unlock_later = TRUE;
+    if (spider_db_query(
+      conn,
+      SPIDER_SQL_SQL_LOG_ON_STR,
+      SPIDER_SQL_SQL_LOG_ON_LEN,
+      -1,
+      need_mon)
+    ) {
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      DBUG_RETURN(spider_db_errorno(conn));
+    }
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+  } else {
+    pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+    pthread_mutex_lock(&conn->mta_conn_mutex);
+    SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    conn->need_mon = need_mon;
+    DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = TRUE;
+    conn->mta_conn_mutex_unlock_later = TRUE;
+    if (spider_db_query(
+      conn,
+      SPIDER_SQL_SQL_LOG_OFF_STR,
+      SPIDER_SQL_SQL_LOG_OFF_LEN,
+      -1,
+      need_mon)
+    ) {
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      DBUG_RETURN(spider_db_errorno(conn));
+    }
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+  }
+  DBUG_RETURN(0);
+}
+
+bool spider_db_mbase::set_wait_timeout_in_bulk_sql()
+{
+  DBUG_ENTER("spider_db_mbase::set_wait_timeout_in_bulk_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(TRUE);
+}
+
+int spider_db_mbase::set_wait_timeout(
+  int wait_timeout,
+  int *need_mon
+) {
+  char sql_buf[MAX_FIELD_WIDTH];
+  char timeout_str[SPIDER_SQL_INT_LEN];
+  int timeout_str_length;
+  spider_string sql_str(sql_buf, sizeof(sql_buf), &my_charset_bin);
+  DBUG_ENTER("spider_db_mbase::set_wait_timeout");
+  DBUG_PRINT("info",("spider this=%p", this));
+  sql_str.init_calc_mem(264);
+  sql_str.length(0);
+  timeout_str_length =
+    my_sprintf(timeout_str, (timeout_str, "%d", wait_timeout));
+  if (sql_str.reserve(SPIDER_SQL_WAIT_TIMEOUT_LEN + timeout_str_length))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  sql_str.q_append(SPIDER_SQL_WAIT_TIMEOUT_STR, SPIDER_SQL_WAIT_TIMEOUT_LEN);
+  sql_str.q_append(timeout_str, timeout_str_length);
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = need_mon;
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  if (spider_db_query(
+    conn,
+    sql_str.ptr(),
+    sql_str.length(),
+    -1,
+    need_mon)
+  ) {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    DBUG_RETURN(spider_db_errorno(conn));
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  DBUG_RETURN(0);
+}
+
+bool spider_db_mbase::set_sql_mode_in_bulk_sql()
+{
+  DBUG_ENTER("spider_db_mbase::set_sql_mode_in_bulk_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(TRUE);
+}
+
+int spider_db_mbase::set_sql_mode(
+  sql_mode_t sql_mode,
+  int *need_mon
+) {
+  int error_num;
+  char sql_buf[MAX_FIELD_WIDTH];
+  spider_string sql_str(sql_buf, sizeof(sql_buf), &my_charset_bin);
+  DBUG_ENTER("spider_db_mbase::set_sql_mode");
+  DBUG_PRINT("info",("spider this=%p", this));
+  sql_str.init_calc_mem(265);
+  sql_str.length(0);
+  if (sql_str.reserve(SPIDER_SQL_SQL_MODE_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  sql_str.q_append(SPIDER_SQL_SQL_MODE_STR, SPIDER_SQL_SQL_MODE_LEN);
+  if ((error_num = spider_db_mbase_utility->append_sql_mode_internal(&sql_str, sql_mode)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  if (sql_str.length() > SPIDER_SQL_SQL_MODE_LEN)
+  {
+    sql_str.length(sql_str.length() - SPIDER_SQL_COMMA_LEN);
+  } else {
+    if (sql_str.reserve(SPIDER_SQL_VALUE_QUOTE_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+  }
+  sql_str.q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = need_mon;
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  if (spider_db_query(
+    conn,
+    sql_str.ptr(),
+    sql_str.length(),
+    -1,
+    need_mon)
+  ) {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    DBUG_RETURN(spider_db_errorno(conn));
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  DBUG_RETURN(0);
+}
+
+bool spider_db_mbase::set_time_zone_in_bulk_sql()
+{
+  DBUG_ENTER("spider_db_mbase::set_time_zone_in_bulk_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(TRUE);
+}
+
+int spider_db_mbase::set_time_zone(
+  Time_zone *time_zone,
+  int *need_mon
+) {
+  const String *tz_str = time_zone->get_name();
+  char sql_buf[MAX_FIELD_WIDTH];
+  spider_string sql_str(sql_buf, sizeof(sql_buf), &my_charset_bin);
+  DBUG_ENTER("spider_db_mbase::set_time_zone");
+  DBUG_PRINT("info",("spider this=%p", this));
+  sql_str.init_calc_mem(214);
+  sql_str.length(0);
+  if (sql_str.reserve(SPIDER_SQL_TIME_ZONE_LEN +
+    tz_str->length() + SPIDER_SQL_VALUE_QUOTE_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  sql_str.q_append(SPIDER_SQL_TIME_ZONE_STR, SPIDER_SQL_TIME_ZONE_LEN);
+  sql_str.q_append(tz_str->ptr(), tz_str->length());
+  sql_str.q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = need_mon;
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  if (spider_db_query(
+    conn,
+    sql_str.ptr(),
+    sql_str.length(),
+    -1,
+    need_mon)
+  ) {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    DBUG_RETURN(spider_db_errorno(conn));
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  DBUG_RETURN(0);
+}
+
+bool spider_db_mbase::set_loop_check_in_bulk_sql()
+{
+  DBUG_ENTER("spider_db_mbase::set_loop_check_in_bulk_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(TRUE);
+}
+
+int spider_db_mbase::set_loop_check(
+  int *need_mon
+) {
+  SPIDER_CONN_LOOP_CHECK *lcptr;
+  char sql_buf[MAX_FIELD_WIDTH];
+  spider_string sql_str(sql_buf, sizeof(sql_buf), &my_charset_bin);
+  DBUG_ENTER("spider_db_mbase::set_loop_check");
+  DBUG_PRINT("info",("spider this=%p", this));
+  sql_str.init_calc_mem(270);
+  while ((lcptr = (SPIDER_CONN_LOOP_CHECK *) my_hash_element(
+    &conn->loop_check_queue, 0)))
+  {
+    sql_str.length(0);
+    if (sql_str.reserve(SPIDER_SQL_SET_USER_VAL_LEN +
+      SPIDER_SQL_LOP_CHK_PRM_PRF_LEN + lcptr->to_name.length +
+      SPIDER_SQL_NAME_QUOTE_LEN + SPIDER_SQL_EQUAL_LEN +
+      SPIDER_SQL_VALUE_QUOTE_LEN +
+      lcptr->merged_value.length + SPIDER_SQL_VALUE_QUOTE_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    sql_str.q_append(SPIDER_SQL_SET_USER_VAL_STR, SPIDER_SQL_SET_USER_VAL_LEN);
+    sql_str.q_append(SPIDER_SQL_LOP_CHK_PRM_PRF_STR,
+      SPIDER_SQL_LOP_CHK_PRM_PRF_LEN);
+    sql_str.q_append(lcptr->to_name.str, lcptr->to_name.length);
+    sql_str.q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+    sql_str.q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+    sql_str.q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    sql_str.q_append(lcptr->merged_value.str, lcptr->merged_value.length);
+    sql_str.q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+
+    pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+    pthread_mutex_lock(&conn->mta_conn_mutex);
+    SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    conn->need_mon = need_mon;
+    DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = TRUE;
+    conn->mta_conn_mutex_unlock_later = TRUE;
+    if (spider_db_query(
+      conn,
+      sql_str.ptr(),
+      sql_str.length(),
+      -1,
+      need_mon)
+    ) {
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      DBUG_RETURN(spider_db_errorno(conn));
+    }
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+    my_hash_delete_with_hash_value(&conn->loop_check_queue,
+      lcptr->hash_value, (uchar *) lcptr);
+#else
+    my_hash_delete(&conn->loop_check_queue, (uchar*) lcptr);
+#endif
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase::fin_loop_check()
+{
+  st_spider_conn_loop_check *lcptr;
+  DBUG_ENTER("spider_db_mbase::fin_loop_check");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (conn->loop_check_queue.records)
+  {
+    uint l = 0;
+    while ((lcptr = (SPIDER_CONN_LOOP_CHECK *) my_hash_element(
+      &conn->loop_check_queue, l)))
+    {
+      lcptr->flag = 0;
+      ++l;
+    }
+    my_hash_reset(&conn->loop_check_queue);
+  }
+  lcptr = conn->loop_check_ignored_first;
+  while (lcptr)
+  {
+    lcptr->flag = 0;
+    lcptr = lcptr->next;
+  }
+  conn->loop_check_ignored_first = NULL;
+  lcptr = conn->loop_check_meraged_first;
+  while (lcptr)
+  {
+    lcptr->flag = 0;
+    lcptr = lcptr->next;
+  }
+  conn->loop_check_meraged_first = NULL;
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase::exec_simple_sql_with_result(
+  SPIDER_TRX *trx,
+  SPIDER_SHARE *share,
+  const char *sql,
+  uint sql_length,
+  int all_link_idx,
+  int *need_mon,
+  SPIDER_DB_RESULT **res
+) {
+  int error_num;
+  DBUG_ENTER("spider_db_mbase::exec_simple_sql_with_result");
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = need_mon;
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  spider_conn_set_timeout_from_share(conn, all_link_idx, trx->thd,
+    share);
+  if (
+    (error_num = spider_db_set_names_internal(trx, share, conn,
+      all_link_idx, need_mon)) ||
+    (
+      spider_db_query(
+        conn,
+        sql,
+        sql_length,
+        -1,
+        need_mon) &&
+      (error_num = spider_db_errorno(conn))
+    )
+  ) {
+    if (
+      error_num == ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM &&
+      !conn->disable_reconnect
+    ) {
+      /* retry */
+      if ((error_num = spider_db_ping_internal(share, conn,
+        all_link_idx, need_mon)))
+      {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        DBUG_PRINT("info", ("spider error_num=%d 1", error_num));
+        DBUG_RETURN(error_num);
+      }
+      if ((error_num = spider_db_set_names_internal(trx, share, conn,
+        all_link_idx, need_mon)))
+      {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        DBUG_PRINT("info", ("spider error_num=%d 2", error_num));
+        DBUG_RETURN(error_num);
+      }
+      spider_conn_set_timeout_from_share(conn, all_link_idx, trx->thd,
+        share);
+      if (spider_db_query(
+        conn,
+        sql,
+        sql_length,
+        -1,
+        need_mon)
+      ) {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        DBUG_PRINT("info", ("spider error_num=%d 3", error_num));
+        DBUG_RETURN(spider_db_errorno(conn));
+      }
+    } else {
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      DBUG_PRINT("info", ("spider error_num=%d 4", error_num));
+      DBUG_RETURN(error_num);
+    }
+  }
+  if (!(*res = store_result(NULL, NULL, &error_num)))
+  {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    if (error_num)
+    {
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      DBUG_PRINT("info", ("spider error_num=%d 5", error_num));
+      DBUG_RETURN(error_num);
+    }
+    else if ((error_num = spider_db_errorno(conn)))
+    {
+      DBUG_PRINT("info", ("spider error_num=%d 6", error_num));
+      DBUG_RETURN(error_num);
+    } else {
+      DBUG_PRINT("info", ("spider error_num=%d 7",
+        ER_QUERY_ON_FOREIGN_DATA_SOURCE));
+      DBUG_RETURN(ER_QUERY_ON_FOREIGN_DATA_SOURCE);
+    }
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase::show_master_status(
+  SPIDER_TRX *trx,
+  SPIDER_SHARE *share,
+  int all_link_idx,
+  int *need_mon,
+  TABLE *table,
+  spider_string *str,
+  int mode,
+  SPIDER_DB_RESULT **res1,
+  SPIDER_DB_RESULT **res2
+) {
+  int error_num;
+  const char *binlog_file_name, *binlog_pos;
+  uint binlog_file_name_length, binlog_pos_length;
+  DBUG_ENTER("spider_db_mbase::show_master_status");
+  if ((error_num = exec_simple_sql_with_result(trx, share,
+    SPIDER_SQL_SHOW_MASTER_STATUS_STR, SPIDER_SQL_SHOW_MASTER_STATUS_LEN,
+    all_link_idx, need_mon, res1))
+  ) {
+    DBUG_PRINT("info", ("spider error_num=%d 1", error_num));
+    DBUG_RETURN(error_num);
+  }
+
+  if (!(error_num = ((spider_db_mbase_result *)*res1)->fetch_show_master_status(
+    &binlog_file_name, &binlog_pos))
+  ) {
+    binlog_file_name_length = strlen(binlog_file_name);
+    binlog_pos_length = strlen(binlog_pos);
+    spider_store_binlog_pos_binlog_file(table,
+      binlog_file_name, binlog_file_name_length,
+      binlog_pos, binlog_pos_length, conn->access_charset);
+    if (mode > 0)
+    {
+      error_num = select_binlog_gtid_pos(
+        trx,
+        share,
+        all_link_idx,
+        need_mon,
+        table,
+        str,
+        binlog_file_name,
+        binlog_file_name_length,
+        binlog_pos,
+        binlog_pos_length,
+        res2
+      );
+    } else {
+      spider_store_binlog_pos_gtid(table, NULL, 0, conn->access_charset);
+    }
+  }
+/*
+  res->free_result();
+  delete res;
+*/
+  if (error_num)
+  {
+    DBUG_PRINT("info", ("spider error_num=%d 2", error_num));
+    DBUG_RETURN(error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase::select_binlog_gtid_pos(
+  SPIDER_TRX *trx,
+  SPIDER_SHARE *share,
+  int all_link_idx,
+  int *need_mon,
+  TABLE *table,
+  spider_string *str,
+  const char *binlog_file_name,
+  uint binlog_file_name_length,
+  const char *binlog_pos,
+  uint binlog_pos_length,
+  SPIDER_DB_RESULT **res
+) {
+  int error_num;
+  size_t length;
+  const char *gtid_pos;
+  DBUG_ENTER("spider_db_mbase::select_binlog_gtid_pos");
+  str->length(0);
+  if (str->reserve(
+    SPIDER_SQL_BINLOG_GTID_POS_LEN +
+    SPIDER_SQL_OPEN_PAREN_LEN +
+    SPIDER_SQL_VALUE_QUOTE_LEN +
+    binlog_file_name_length * 2 +
+    SPIDER_SQL_VALUE_QUOTE_LEN +
+    SPIDER_SQL_COMMA_LEN +
+    SPIDER_SQL_VALUE_QUOTE_LEN +
+    binlog_pos_length * 2 +
+    SPIDER_SQL_VALUE_QUOTE_LEN +
+    SPIDER_SQL_CLOSE_PAREN_LEN
+  ))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_BINLOG_GTID_POS_STR,
+    SPIDER_SQL_BINLOG_GTID_POS_LEN);
+  str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+  length = conn->db_conn->escape_string((char *)str->ptr() + str->length(),
+     binlog_file_name, binlog_file_name_length);
+  str->length(str->length() + length);
+  str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+  str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+  length = conn->db_conn->escape_string((char *)str->ptr() + str->length(),
+     binlog_pos, binlog_pos_length);
+  str->length(str->length() + length);
+  str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+  str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+
+  if ((error_num = exec_simple_sql_with_result(trx, share,
+    str->ptr(), str->length(), all_link_idx, need_mon, res)))
+  {
+    DBUG_PRINT("info", ("spider error_num=%d 1", error_num));
+    DBUG_RETURN(error_num);
+  }
+  if (!(error_num = ((spider_db_mbase_result *)*res)->fetch_select_binlog_gtid_pos(&gtid_pos)))
+  {
+    spider_store_binlog_pos_gtid(table, gtid_pos, strlen(gtid_pos), conn->access_charset);
+  }
+/*
+  res->free_result();
+  delete res;
+*/
+  if (error_num)
+  {
+    DBUG_PRINT("info", ("spider error_num=%d 2", error_num));
+    DBUG_RETURN(error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+int spider_db_mbase::append_sql(
+  char *sql,
+  ulong sql_length,
+  st_spider_db_request_key *request_key
+) {
+  DBUG_ENTER("spider_db_mbase::append_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase::append_open_handler(
+  uint handler_id,
+  const char *db_name,
+  const char *table_name,
+  const char *index_name,
+  const char *sql,
+  st_spider_db_request_key *request_key
+) {
+  DBUG_ENTER("spider_db_mbase::append_open_handler");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase::append_select(
+  uint handler_id,
+  spider_string *sql,
+  SPIDER_DB_HS_STRING_REF_BUFFER *keys,
+  int limit,
+  int skip,
+  st_spider_db_request_key *request_key
+) {
+  DBUG_ENTER("spider_db_mbase::append_select");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase::append_insert(
+  uint handler_id,
+  SPIDER_DB_HS_STRING_REF_BUFFER *upds,
+  st_spider_db_request_key *request_key
+) {
+  DBUG_ENTER("spider_db_mbase::append_insert");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase::append_update(
+  uint handler_id,
+  spider_string *sql,
+  SPIDER_DB_HS_STRING_REF_BUFFER *keys,
+  SPIDER_DB_HS_STRING_REF_BUFFER *upds,
+  int limit,
+  int skip,
+  bool increment,
+  bool decrement,
+  st_spider_db_request_key *request_key
+) {
+  DBUG_ENTER("spider_db_mbase::append_update");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase::append_delete(
+  uint handler_id,
+  spider_string *sql,
+  SPIDER_DB_HS_STRING_REF_BUFFER *keys,
+  int limit,
+  int skip,
+  st_spider_db_request_key *request_key
+) {
+  DBUG_ENTER("spider_db_mbase::append_delete");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+void spider_db_mbase::reset_request_queue()
+{
+  DBUG_ENTER("spider_db_mbase::reset_request_queue");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_VOID_RETURN;
+}
+#endif
+
+size_t spider_db_mbase::escape_string(
+  char *to,
+  const char *from,
+  size_t from_length
+) {
+  DBUG_ENTER("spider_db_mbase::escape_string");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (db_conn->server_status & SERVER_STATUS_NO_BACKSLASH_ESCAPES)
+    DBUG_RETURN(escape_quotes_for_mysql(db_conn->charset, to, 0,
+      from, from_length));
+  DBUG_RETURN(escape_string_for_mysql(db_conn->charset, to, 0,
+    from, from_length));
+}
+
+bool spider_db_mbase::have_lock_table_list()
+{
+  DBUG_ENTER("spider_db_mbase::have_lock_table_list");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(lock_table_hash.records);
+}
+
+int spider_db_mbase::append_lock_tables(
+  spider_string *str
+) {
+  int error_num;
+  ha_spider *tmp_spider;
+  int lock_type;
+  uint conn_link_idx;
+  int tmp_link_idx;
+  SPIDER_LINK_FOR_HASH *tmp_link_for_hash;
+  const char *db_name;
+  uint db_name_length;
+  CHARSET_INFO *db_name_charset;
+  const char *table_name;
+  uint table_name_length;
+  CHARSET_INFO *table_name_charset;
+  DBUG_ENTER("spider_db_mbase::lock_tables");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if ((error_num = spider_db_mbase_utility->append_lock_table_head(str)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  while ((tmp_link_for_hash =
+    (SPIDER_LINK_FOR_HASH *) my_hash_element(&lock_table_hash, 0)))
+  {
+    tmp_spider = tmp_link_for_hash->spider;
+    tmp_link_idx = tmp_link_for_hash->link_idx;
+    switch (tmp_spider->wide_handler->lock_type)
+    {
+      case TL_READ:
+        lock_type = SPIDER_DB_TABLE_LOCK_READ_LOCAL;
+        break;
+      case TL_READ_NO_INSERT:
+        lock_type = SPIDER_DB_TABLE_LOCK_READ;
+        break;
+      case TL_WRITE_LOW_PRIORITY:
+        lock_type = SPIDER_DB_TABLE_LOCK_LOW_PRIORITY_WRITE;
+        break;
+      case TL_WRITE:
+        lock_type = SPIDER_DB_TABLE_LOCK_WRITE;
+        break;
+      default:
+        // no lock
+        DBUG_PRINT("info",("spider lock_type=%d",
+          tmp_spider->wide_handler->lock_type));
+        DBUG_RETURN(0);
+    }
+    conn_link_idx = tmp_spider->conn_link_idx[tmp_link_idx];
+    spider_mbase_share *db_share = (spider_mbase_share *)
+      tmp_spider->share->dbton_share[conn->dbton_id];
+    if (&db_share->db_names_str[conn_link_idx])
+    {
+      db_name = db_share->db_names_str[conn_link_idx].ptr();
+      db_name_length = db_share->db_names_str[conn_link_idx].length();
+      db_name_charset = tmp_spider->share->access_charset;
+    } else {
+      db_name = tmp_spider->share->tgt_dbs[conn_link_idx];
+      db_name_length = tmp_spider->share->tgt_dbs_lengths[conn_link_idx];
+      db_name_charset = system_charset_info;
+    }
+    if (&db_share->table_names_str[conn_link_idx])
+    {
+      table_name = db_share->table_names_str[conn_link_idx].ptr();
+      table_name_length = db_share->table_names_str[conn_link_idx].length();
+      table_name_charset = tmp_spider->share->access_charset;
+    } else {
+      table_name = tmp_spider->share->tgt_table_names[conn_link_idx];
+      table_name_length =
+        tmp_spider->share->tgt_table_names_lengths[conn_link_idx];
+      table_name_charset = system_charset_info;
+    }
+    if ((error_num = spider_db_mbase_utility->
+      append_lock_table_body(
+        str,
+        db_name,
+        db_name_length,
+        db_name_charset,
+        table_name,
+        table_name_length,
+        table_name_charset,
+        lock_type
+      )
+    )) {
+      my_hash_reset(&lock_table_hash);
+      DBUG_RETURN(error_num);
+    }
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+    my_hash_delete_with_hash_value(&lock_table_hash,
+      tmp_link_for_hash->db_table_str_hash_value, (uchar*) tmp_link_for_hash);
+#else
+    my_hash_delete(&lock_table_hash, (uchar*) tmp_link_for_hash);
+#endif
+  }
+  if ((error_num = spider_db_mbase_utility->append_lock_table_tail(str)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase::append_unlock_tables(
+  spider_string *str
+) {
+  int error_num;
+  DBUG_ENTER("spider_db_mbase::append_unlock_tables");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if ((error_num = spider_db_mbase_utility->append_unlock_table(str)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+uint spider_db_mbase::get_lock_table_hash_count()
+{
+  DBUG_ENTER("spider_db_mbase::get_lock_table_hash_count");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(lock_table_hash.records);
+}
+
+void spider_db_mbase::reset_lock_table_hash()
+{
+  DBUG_ENTER("spider_db_mbase::reset_lock_table_hash");
+  DBUG_PRINT("info",("spider this=%p", this));
+  my_hash_reset(&lock_table_hash);
+  DBUG_VOID_RETURN;
+}
+
+uint spider_db_mbase::get_opened_handler_count()
+{
+  DBUG_ENTER("spider_db_mbase::get_opened_handler_count");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(handler_open_array.elements);
+}
+
+void spider_db_mbase::reset_opened_handler()
+{
+  ha_spider *tmp_spider;
+  int tmp_link_idx;
+  SPIDER_LINK_FOR_HASH **tmp_link_for_hash;
+  DBUG_ENTER("spider_db_mbase::reset_opened_handler");
+  DBUG_PRINT("info",("spider this=%p", this));
+  while ((tmp_link_for_hash =
+    (SPIDER_LINK_FOR_HASH **) pop_dynamic(&handler_open_array)))
+  {
+    tmp_spider = (*tmp_link_for_hash)->spider;
+    tmp_link_idx = (*tmp_link_for_hash)->link_idx;
+    tmp_spider->clear_handler_opened(tmp_link_idx, conn->conn_kind);
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_db_mbase::set_dup_key_idx(
+  ha_spider *spider,
+  int link_idx
+) {
+  TABLE *table = spider->get_table();
+  uint roop_count, pk_idx = table->s->primary_key;
+  int key_name_length;
+  int max_length = 0;
+  const char *key_name;
+  DBUG_ENTER("spider_db_mbase::set_dup_key_idx");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider error_str=%s", conn->error_str));
+  for (roop_count = 0; roop_count < table->s->keys; roop_count++)
+  {
+    if (roop_count == pk_idx)
+    {
+      DBUG_PRINT("info",("spider pk_idx=%u", roop_count));
+      int all_link_idx = spider->conn_link_idx[link_idx];
+      key_name = spider->share->tgt_pk_names[all_link_idx];
+      key_name_length = spider->share->tgt_pk_names_lengths[all_link_idx];
+    } else {
+#ifdef SPIDER_use_LEX_CSTRING_for_KEY_Field_name
+      key_name = table->key_info[roop_count].name.str;
+      key_name_length = table->key_info[roop_count].name.length;
+#else
+      key_name = table->key_info[roop_count].name;
+      key_name_length = strlen(key_name);
+#endif
+    }
+    DBUG_PRINT("info",("spider key_name=%s", key_name));
+    if (
+      max_length < key_name_length &&
+      conn->error_length - 1 >= key_name_length &&
+      *(conn->error_str + conn->error_length - 2 -
+        key_name_length) == '\'' &&
+      !strncasecmp(conn->error_str +
+        conn->error_length - 1 - key_name_length,
+        key_name, key_name_length)
+    ) {
+      max_length = key_name_length;
+      spider->dup_key_idx = roop_count;
+    }
+  }
+  if (max_length == 0)
+    spider->dup_key_idx = (uint) -1;
+  DBUG_PRINT("info",("spider dup_key_idx=%d", spider->dup_key_idx));
+  DBUG_VOID_RETURN;
+}
+
+bool spider_db_mbase::cmp_request_key_to_snd(
+  st_spider_db_request_key *request_key
+) {
+  DBUG_ENTER("spider_db_mbase::cmp_request_key_to_snd");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(TRUE);
+}
+
+spider_db_mbase_util::spider_db_mbase_util() : spider_db_util()
+{
+  DBUG_ENTER("spider_db_mbase_util::spider_db_mbase_util");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_db_mysql_util::spider_db_mysql_util() : spider_db_mbase_util()
+{
+  DBUG_ENTER("spider_db_mysql_util::spider_db_mysql_util");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_db_mariadb_util::spider_db_mariadb_util() : spider_db_mbase_util()
+{
+  DBUG_ENTER("spider_db_mariadb_util::spider_db_mariadb_util");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_db_mbase_util::~spider_db_mbase_util()
+{
+  DBUG_ENTER("spider_db_mbase_util::~spider_db_mbase_util");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_db_mysql_util::~spider_db_mysql_util()
+{
+  DBUG_ENTER("spider_db_mysql_util::~spider_db_mysql_util");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_db_mariadb_util::~spider_db_mariadb_util()
+{
+  DBUG_ENTER("spider_db_mariadb_util::~spider_db_mariadb_util");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+int spider_db_mbase_util::append_name(
+  spider_string *str,
+  const char *name,
+  uint name_length
+) {
+  DBUG_ENTER("spider_db_mbase_util::append_name");
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  str->q_append(name, name_length);
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_util::append_name_with_charset(
+  spider_string *str,
+  const char *name,
+  uint name_length,
+  CHARSET_INFO *name_charset
+) {
+  DBUG_ENTER("spider_db_mbase_util::append_name_with_charset");
+  if (str->reserve(SPIDER_SQL_NAME_QUOTE_LEN * 2 + name_length * 2))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  str->append(name, name_length, name_charset);
+  if (str->reserve(SPIDER_SQL_NAME_QUOTE_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_util::append_escaped_name(
+  spider_string *str,
+  const char *name,
+  uint name_length
+) {
+  int error_num;
+  DBUG_ENTER("spider_db_mbase_util::append_name");
+  if (str->reserve(SPIDER_SQL_NAME_QUOTE_LEN * 2 + name_length * 2))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  if ((error_num = spider_db_append_name_with_quote_str_internal(
+    str, name, name_length, dbton_id)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  if (str->reserve(SPIDER_SQL_NAME_QUOTE_LEN))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_util::append_escaped_name_with_charset(
+  spider_string *str,
+  const char *name,
+  uint name_length,
+  CHARSET_INFO *name_charset
+) {
+  int error_num;
+  DBUG_ENTER("spider_db_mbase_util::append_name_with_charset");
+  if (str->reserve(SPIDER_SQL_NAME_QUOTE_LEN * 2 + name_length * 2))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  if ((error_num = spider_db_append_name_with_quote_str_internal(
+    str, name, name_length, name_charset, dbton_id)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  if (str->reserve(SPIDER_SQL_NAME_QUOTE_LEN))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  DBUG_RETURN(0);
+}
+
+bool spider_db_mbase_util::is_name_quote(
+  const char head_code
+) {
+  DBUG_ENTER("spider_db_mbase_util::is_name_quote");
+  DBUG_RETURN(head_code == *name_quote_str);
+}
+
+int spider_db_mbase_util::append_escaped_name_quote(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_db_mbase_util::append_escaped_name_quote");
+  if (str->reserve(SPIDER_SQL_NAME_QUOTE_LEN * 2))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_db_mariadb_util::append_column_value(
+  ha_spider *spider,
+  spider_string *str,
+  Field *field,
+  const uchar *new_ptr,
+  CHARSET_INFO *access_charset
+) {
+  bool float_value = FALSE;
+  int error_num;
+  char buf[MAX_FIELD_WIDTH];
+  spider_string tmp_str(buf, MAX_FIELD_WIDTH, field->charset());
+  String *ptr;
+  uint length;
+  THD *thd = field->table->in_use;
+  Time_zone *saved_time_zone = thd->variables.time_zone;
+  DBUG_ENTER("spider_db_mariadb_util::append_column_value");
+  tmp_str.init_calc_mem(113);
+
+  thd->variables.time_zone = UTC;
+
+  if (new_ptr)
+  {
+    if (
+      field->type() == MYSQL_TYPE_BLOB ||
+      field->real_type() == MYSQL_TYPE_VARCHAR
+    ) {
+      length = uint2korr(new_ptr);
+      tmp_str.set_quick((char *) new_ptr + HA_KEY_BLOB_LENGTH, length,
+        field->charset());
+      ptr = tmp_str.get_str();
+    } else if (field->type() == MYSQL_TYPE_GEOMETRY)
+    {
+/*
+      uint mlength = SIZEOF_STORED_DOUBLE, lcnt;
+      uchar *dest = (uchar *) buf;
+      const uchar *source;
+      for (lcnt = 0; lcnt < 4; lcnt++)
+      {
+        mlength = SIZEOF_STORED_DOUBLE;
+        source = new_ptr + mlength + SIZEOF_STORED_DOUBLE * lcnt;
+        while (mlength--)
+          *dest++ = *--source;
+      }
+      tmp_str.length(SIZEOF_STORED_DOUBLE * lcnt);
+*/
+#ifndef DBUG_OFF
+      double xmin, xmax, ymin, ymax;
+/*
+      float8store(buf,xmin);
+      float8store(buf+8,xmax);
+      float8store(buf+16,ymin);
+      float8store(buf+24,ymax);
+      memcpy(&xmin,new_ptr,sizeof(xmin));
+      memcpy(&xmax,new_ptr + 8,sizeof(xmax));
+      memcpy(&ymin,new_ptr + 16,sizeof(ymin));
+      memcpy(&ymax,new_ptr + 24,sizeof(ymax));
+      float8get(xmin, buf);
+      float8get(xmax, buf + 8);
+      float8get(ymin, buf + 16);
+      float8get(ymax, buf + 24);
+      DBUG_PRINT("info", ("spider geo is %f %f %f %f",
+        xmin, xmax, ymin, ymax));
+      DBUG_PRINT("info", ("spider geo is %.14g %.14g %.14g %.14g",
+        xmin, xmax, ymin, ymax));
+*/
+      float8get(xmin, new_ptr);
+      float8get(xmax, new_ptr + 8);
+      float8get(ymin, new_ptr + 16);
+      float8get(ymax, new_ptr + 24);
+      DBUG_PRINT("info", ("spider geo is %f %f %f %f",
+        xmin, xmax, ymin, ymax));
+/*
+      float8get(xmin, new_ptr + SIZEOF_STORED_DOUBLE * 4);
+      float8get(xmax, new_ptr + SIZEOF_STORED_DOUBLE * 5);
+      float8get(ymin, new_ptr + SIZEOF_STORED_DOUBLE * 6);
+      float8get(ymax, new_ptr + SIZEOF_STORED_DOUBLE * 7);
+      DBUG_PRINT("info", ("spider geo is %f %f %f %f",
+        xmin, xmax, ymin, ymax));
+      float8get(xmin, new_ptr + SIZEOF_STORED_DOUBLE * 8);
+      float8get(xmax, new_ptr + SIZEOF_STORED_DOUBLE * 9);
+      float8get(ymin, new_ptr + SIZEOF_STORED_DOUBLE * 10);
+      float8get(ymax, new_ptr + SIZEOF_STORED_DOUBLE * 11);
+      DBUG_PRINT("info", ("spider geo is %f %f %f %f",
+        xmin, xmax, ymin, ymax));
+      float8get(xmin, new_ptr + SIZEOF_STORED_DOUBLE * 12);
+      float8get(xmax, new_ptr + SIZEOF_STORED_DOUBLE * 13);
+      float8get(ymin, new_ptr + SIZEOF_STORED_DOUBLE * 14);
+      float8get(ymax, new_ptr + SIZEOF_STORED_DOUBLE * 15);
+      DBUG_PRINT("info", ("spider geo is %f %f %f %f",
+        xmin, xmax, ymin, ymax));
+*/
+#endif
+/*
+      tmp_str.set_quick((char *) new_ptr, SIZEOF_STORED_DOUBLE * 4,
+        &my_charset_bin);
+*/
+      tmp_str.length(0);
+      tmp_str.q_append((char *) SPIDER_SQL_LINESTRING_HEAD_STR,
+        SPIDER_SQL_LINESTRING_HEAD_LEN);
+      tmp_str.q_append((char *) new_ptr, SIZEOF_STORED_DOUBLE);
+      tmp_str.q_append((char *) new_ptr + SIZEOF_STORED_DOUBLE * 2,
+        SIZEOF_STORED_DOUBLE);
+      tmp_str.q_append((char *) new_ptr + SIZEOF_STORED_DOUBLE,
+        SIZEOF_STORED_DOUBLE);
+      tmp_str.q_append((char *) new_ptr + SIZEOF_STORED_DOUBLE * 3,
+        SIZEOF_STORED_DOUBLE);
+      ptr = tmp_str.get_str();
+    } else {
+      ptr = field->val_str(tmp_str.get_str(), new_ptr);
+      tmp_str.mem_calc();
+    }
+  } else {
+    ptr = field->val_str(tmp_str.get_str());
+    tmp_str.mem_calc();
+    if (field->type() == MYSQL_TYPE_FLOAT)
+    {
+      float_value = TRUE;
+    }
+  }
+
+  thd->variables.time_zone = saved_time_zone;
+
+  DBUG_PRINT("info", ("spider field->type() is %d", field->type()));
+  DBUG_PRINT("info", ("spider ptr->length() is %d", ptr->length()));
+/*
+  if (
+    field->type() == MYSQL_TYPE_BIT ||
+    (field->type() >= MYSQL_TYPE_TINY_BLOB &&
+      field->type() <= MYSQL_TYPE_BLOB)
+  ) {
+    uchar *hex_ptr = (uchar *) ptr->ptr(), *end_ptr;
+    char *str_ptr;
+    DBUG_PRINT("info", ("spider HEX"));
+    if (str->reserve(SPIDER_SQL_HEX_LEN + ptr->length() * 2))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_HEX_STR, SPIDER_SQL_HEX_LEN);
+    str_ptr = (char *) str->ptr() + str->length();
+    for (end_ptr = hex_ptr + ptr->length(); hex_ptr < end_ptr; hex_ptr++)
+    {
+      *str_ptr++ = spider_dig_upper[(*hex_ptr) >> 4];
+      *str_ptr++ = spider_dig_upper[(*hex_ptr) & 0x0F];
+    }
+    str->length(str->length() + ptr->length() * 2);
+  } else 
+*/
+  if (field->result_type() == STRING_RESULT)
+  {
+    DBUG_PRINT("info", ("spider STRING_RESULT"));
+    if (str->charset() != field->charset())
+    {
+      if ((error_num = spider_db_append_charset_name_before_string(str,
+        field->charset())))
+      {
+        DBUG_RETURN(error_num);
+      }
+    }
+    if (str->reserve(SPIDER_SQL_VALUE_QUOTE_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    if (
+      field->type() == MYSQL_TYPE_VARCHAR ||
+      (field->type() >= MYSQL_TYPE_ENUM &&
+        field->type() <= MYSQL_TYPE_GEOMETRY)
+    ) {
+      DBUG_PRINT("info", ("spider append_escaped"));
+      char buf2[MAX_FIELD_WIDTH];
+      spider_string tmp_str2(buf2, MAX_FIELD_WIDTH, field->charset());
+      tmp_str2.init_calc_mem(114);
+      tmp_str2.length(0);
+      if (
+        tmp_str2.append(ptr->ptr(), ptr->length(), field->charset()) ||
+        str->reserve(tmp_str2.length() * 2) ||
+        append_escaped_util(str, tmp_str2.get_str())
+      )
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    } else if (str->append(*ptr))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    if (str->reserve(SPIDER_SQL_VALUE_QUOTE_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+  } else if (field->str_needs_quotes())
+  {
+    if (str->charset() != field->charset())
+    {
+      if ((error_num = spider_db_append_charset_name_before_string(str,
+        field->charset())))
+      {
+        DBUG_RETURN(error_num);
+      }
+    }
+    if (str->reserve(SPIDER_SQL_VALUE_QUOTE_LEN * 2 + ptr->length() * 2 + 2))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    append_escaped_util(str, ptr);
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+  } else if (float_value)
+  {
+    if (str->reserve(SPIDER_SQL_CAST_LEN + ptr->length() +
+      SPIDER_SQL_AS_FLOAT_LEN, SPIDER_SQL_CLOSE_PAREN_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_SQL_CAST_STR, SPIDER_SQL_CAST_LEN);
+    str->q_append(ptr->ptr(), ptr->length());
+    str->q_append(SPIDER_SQL_AS_FLOAT_STR, SPIDER_SQL_AS_FLOAT_LEN);
+    str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+  } else if (str->append(*ptr))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_mysql_util::append_column_value(
+  ha_spider *spider,
+  spider_string *str,
+  Field *field,
+  const uchar *new_ptr,
+  CHARSET_INFO *access_charset
+) {
+  bool float_value = FALSE;
+  int error_num;
+  char buf[MAX_FIELD_WIDTH];
+  spider_string tmp_str(buf, MAX_FIELD_WIDTH, field->charset());
+  String *ptr;
+  uint length;
+  THD *thd = field->table->in_use;
+  Time_zone *saved_time_zone = thd->variables.time_zone;
+  DBUG_ENTER("spider_db_mysql_util::append_column_value");
+  tmp_str.init_calc_mem(266);
+
+  thd->variables.time_zone = UTC;
+
+  if (new_ptr)
+  {
+    if (
+      field->type() == MYSQL_TYPE_BLOB ||
+      field->real_type() == MYSQL_TYPE_VARCHAR
+    ) {
+      length = uint2korr(new_ptr);
+      tmp_str.set_quick((char *) new_ptr + HA_KEY_BLOB_LENGTH, length,
+        field->charset());
+      ptr = tmp_str.get_str();
+    } else if (field->type() == MYSQL_TYPE_GEOMETRY)
+    {
+/*
+      uint mlength = SIZEOF_STORED_DOUBLE, lcnt;
+      uchar *dest = (uchar *) buf;
+      const uchar *source;
+      for (lcnt = 0; lcnt < 4; lcnt++)
+      {
+        mlength = SIZEOF_STORED_DOUBLE;
+        source = new_ptr + mlength + SIZEOF_STORED_DOUBLE * lcnt;
+        while (mlength--)
+          *dest++ = *--source;
+      }
+      tmp_str.length(SIZEOF_STORED_DOUBLE * lcnt);
+*/
+#ifndef DBUG_OFF
+      double xmin, xmax, ymin, ymax;
+/*
+      float8store(buf,xmin);
+      float8store(buf+8,xmax);
+      float8store(buf+16,ymin);
+      float8store(buf+24,ymax);
+      memcpy(&xmin,new_ptr,sizeof(xmin));
+      memcpy(&xmax,new_ptr + 8,sizeof(xmax));
+      memcpy(&ymin,new_ptr + 16,sizeof(ymin));
+      memcpy(&ymax,new_ptr + 24,sizeof(ymax));
+      float8get(xmin, buf);
+      float8get(xmax, buf + 8);
+      float8get(ymin, buf + 16);
+      float8get(ymax, buf + 24);
+      DBUG_PRINT("info", ("spider geo is %f %f %f %f",
+        xmin, xmax, ymin, ymax));
+      DBUG_PRINT("info", ("spider geo is %.14g %.14g %.14g %.14g",
+        xmin, xmax, ymin, ymax));
+*/
+      float8get(xmin, new_ptr);
+      float8get(xmax, new_ptr + 8);
+      float8get(ymin, new_ptr + 16);
+      float8get(ymax, new_ptr + 24);
+      DBUG_PRINT("info", ("spider geo is %f %f %f %f",
+        xmin, xmax, ymin, ymax));
+/*
+      float8get(xmin, new_ptr + SIZEOF_STORED_DOUBLE * 4);
+      float8get(xmax, new_ptr + SIZEOF_STORED_DOUBLE * 5);
+      float8get(ymin, new_ptr + SIZEOF_STORED_DOUBLE * 6);
+      float8get(ymax, new_ptr + SIZEOF_STORED_DOUBLE * 7);
+      DBUG_PRINT("info", ("spider geo is %f %f %f %f",
+        xmin, xmax, ymin, ymax));
+      float8get(xmin, new_ptr + SIZEOF_STORED_DOUBLE * 8);
+      float8get(xmax, new_ptr + SIZEOF_STORED_DOUBLE * 9);
+      float8get(ymin, new_ptr + SIZEOF_STORED_DOUBLE * 10);
+      float8get(ymax, new_ptr + SIZEOF_STORED_DOUBLE * 11);
+      DBUG_PRINT("info", ("spider geo is %f %f %f %f",
+        xmin, xmax, ymin, ymax));
+      float8get(xmin, new_ptr + SIZEOF_STORED_DOUBLE * 12);
+      float8get(xmax, new_ptr + SIZEOF_STORED_DOUBLE * 13);
+      float8get(ymin, new_ptr + SIZEOF_STORED_DOUBLE * 14);
+      float8get(ymax, new_ptr + SIZEOF_STORED_DOUBLE * 15);
+      DBUG_PRINT("info", ("spider geo is %f %f %f %f",
+        xmin, xmax, ymin, ymax));
+*/
+#endif
+/*
+      tmp_str.set_quick((char *) new_ptr, SIZEOF_STORED_DOUBLE * 4,
+        &my_charset_bin);
+*/
+      tmp_str.length(0);
+      tmp_str.q_append((char *) SPIDER_SQL_LINESTRING_HEAD_STR,
+        SPIDER_SQL_LINESTRING_HEAD_LEN);
+      tmp_str.q_append((char *) new_ptr, SIZEOF_STORED_DOUBLE);
+      tmp_str.q_append((char *) new_ptr + SIZEOF_STORED_DOUBLE * 2,
+        SIZEOF_STORED_DOUBLE);
+      tmp_str.q_append((char *) new_ptr + SIZEOF_STORED_DOUBLE,
+        SIZEOF_STORED_DOUBLE);
+      tmp_str.q_append((char *) new_ptr + SIZEOF_STORED_DOUBLE * 3,
+        SIZEOF_STORED_DOUBLE);
+      ptr = tmp_str.get_str();
+    } else {
+      ptr = field->val_str(tmp_str.get_str(), new_ptr);
+      tmp_str.mem_calc();
+    }
+  } else {
+    ptr = field->val_str(tmp_str.get_str());
+    tmp_str.mem_calc();
+    if (field->type() == MYSQL_TYPE_FLOAT)
+    {
+      float_value = TRUE;
+    }
+  }
+
+  thd->variables.time_zone = saved_time_zone;
+
+  DBUG_PRINT("info", ("spider field->type() is %d", field->type()));
+  DBUG_PRINT("info", ("spider ptr->length() is %d", ptr->length()));
+/*
+  if (
+    field->type() == MYSQL_TYPE_BIT ||
+    (field->type() >= MYSQL_TYPE_TINY_BLOB &&
+      field->type() <= MYSQL_TYPE_BLOB)
+  ) {
+    uchar *hex_ptr = (uchar *) ptr->ptr(), *end_ptr;
+    char *str_ptr;
+    DBUG_PRINT("info", ("spider HEX"));
+    if (str->reserve(SPIDER_SQL_HEX_LEN + ptr->length() * 2))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_HEX_STR, SPIDER_SQL_HEX_LEN);
+    str_ptr = (char *) str->ptr() + str->length();
+    for (end_ptr = hex_ptr + ptr->length(); hex_ptr < end_ptr; hex_ptr++)
+    {
+      *str_ptr++ = spider_dig_upper[(*hex_ptr) >> 4];
+      *str_ptr++ = spider_dig_upper[(*hex_ptr) & 0x0F];
+    }
+    str->length(str->length() + ptr->length() * 2);
+  } else 
+*/
+  if (field->result_type() == STRING_RESULT)
+  {
+    DBUG_PRINT("info", ("spider STRING_RESULT"));
+    if (str->charset() != field->charset())
+    {
+      if ((error_num = spider_db_append_charset_name_before_string(str,
+        field->charset())))
+      {
+        DBUG_RETURN(error_num);
+      }
+    }
+    if (str->reserve(SPIDER_SQL_VALUE_QUOTE_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    if (
+      field->type() == MYSQL_TYPE_VARCHAR ||
+      (field->type() >= MYSQL_TYPE_ENUM &&
+        field->type() <= MYSQL_TYPE_GEOMETRY)
+    ) {
+      DBUG_PRINT("info", ("spider append_escaped"));
+      char buf2[MAX_FIELD_WIDTH];
+      spider_string tmp_str2(buf2, MAX_FIELD_WIDTH, field->charset());
+      tmp_str2.init_calc_mem(267);
+      tmp_str2.length(0);
+      if (
+        tmp_str2.append(ptr->ptr(), ptr->length(), field->charset()) ||
+        str->reserve(tmp_str2.length() * 2) ||
+        append_escaped_util(str, tmp_str2.get_str())
+      )
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    } else if (str->append(*ptr))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    if (str->reserve(SPIDER_SQL_VALUE_QUOTE_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+  } else if (field->str_needs_quotes())
+  {
+    if (str->charset() != field->charset())
+    {
+      if ((error_num = spider_db_append_charset_name_before_string(str,
+        field->charset())))
+      {
+        DBUG_RETURN(error_num);
+      }
+    }
+    if (str->reserve(SPIDER_SQL_VALUE_QUOTE_LEN * 2 + ptr->length() * 2 + 2))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    append_escaped_util(str, ptr);
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+  } else if (float_value)
+  {
+    if (str->reserve(SPIDER_SQL_TO_FLOAT_LEN + ptr->length() +
+      SPIDER_SQL_CLOSE_PAREN_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_SQL_TO_FLOAT_STR, SPIDER_SQL_TO_FLOAT_LEN);
+    str->q_append(ptr->ptr(), ptr->length());
+    str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+  } else if (str->append(*ptr))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_util::append_column_value(
+  ha_spider *spider,
+  spider_string *str,
+  Field *field,
+  const uchar *new_ptr,
+  CHARSET_INFO *access_charset
+) {
+  DBUG_ENTER("spider_db_mbase_util::append_column_value");
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_util::append_from_with_alias(
+  spider_string *str,
+  const char **table_names,
+  uint *table_name_lengths,
+  const char **table_aliases,
+  uint *table_alias_lengths,
+  uint table_count,
+  int *table_name_pos,
+  bool over_write
+) {
+  uint roop_count, length = 0;
+  DBUG_ENTER("spider_db_mbase_util::append_from_with_alias");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!over_write)
+  {
+    for (roop_count = 0; roop_count < table_count; roop_count++)
+      length += table_name_lengths[roop_count] + SPIDER_SQL_SPACE_LEN +
+        table_alias_lengths[roop_count] + SPIDER_SQL_COMMA_LEN;
+    if (str->reserve(SPIDER_SQL_FROM_LEN + length))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_FROM_STR, SPIDER_SQL_FROM_LEN);
+    *table_name_pos = str->length();
+  }
+  for (roop_count = 0; roop_count < table_count; roop_count++)
+  {
+    str->q_append(table_names[roop_count], table_name_lengths[roop_count]);
+    str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+    str->q_append(table_aliases[roop_count], table_alias_lengths[roop_count]);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+  str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_util::append_trx_isolation(
+  spider_string *str,
+  int trx_isolation
+) {
+  DBUG_ENTER("spider_db_mbase_util::append_trx_isolation");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_SEMICOLON_LEN +
+    SPIDER_SQL_ISO_READ_UNCOMMITTED_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  if (str->length())
+  {
+    str->q_append(SPIDER_SQL_SEMICOLON_STR, SPIDER_SQL_SEMICOLON_LEN);
+  }
+  switch (trx_isolation)
+  {
+    case ISO_READ_UNCOMMITTED:
+      str->q_append(SPIDER_SQL_ISO_READ_UNCOMMITTED_STR,
+        SPIDER_SQL_ISO_READ_UNCOMMITTED_LEN);
+      break;
+    case ISO_READ_COMMITTED:
+      str->q_append(SPIDER_SQL_ISO_READ_COMMITTED_STR,
+        SPIDER_SQL_ISO_READ_COMMITTED_LEN);
+      break;
+    case ISO_REPEATABLE_READ:
+      str->q_append(SPIDER_SQL_ISO_REPEATABLE_READ_STR,
+        SPIDER_SQL_ISO_REPEATABLE_READ_LEN);
+      break;
+    case ISO_SERIALIZABLE:
+      str->q_append(SPIDER_SQL_ISO_SERIALIZABLE_STR,
+        SPIDER_SQL_ISO_SERIALIZABLE_LEN);
+      break;
+    default:
+      DBUG_RETURN(HA_ERR_UNSUPPORTED);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_util::append_autocommit(
+  spider_string *str,
+  bool autocommit
+) {
+  DBUG_ENTER("spider_db_mbase_util::append_autocommit");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_SEMICOLON_LEN + SPIDER_SQL_AUTOCOMMIT_OFF_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  if (str->length())
+  {
+    str->q_append(SPIDER_SQL_SEMICOLON_STR, SPIDER_SQL_SEMICOLON_LEN);
+  }
+  if (autocommit)
+  {
+    str->q_append(SPIDER_SQL_AUTOCOMMIT_ON_STR,
+      SPIDER_SQL_AUTOCOMMIT_ON_LEN);
+  } else {
+    str->q_append(SPIDER_SQL_AUTOCOMMIT_OFF_STR,
+      SPIDER_SQL_AUTOCOMMIT_OFF_LEN);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_util::append_sql_log_off(
+  spider_string *str,
+  bool sql_log_off
+) {
+  DBUG_ENTER("spider_db_mbase_util::append_sql_log_off");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_SEMICOLON_LEN + SPIDER_SQL_SQL_LOG_OFF_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  if (str->length())
+  {
+    str->q_append(SPIDER_SQL_SEMICOLON_STR, SPIDER_SQL_SEMICOLON_LEN);
+  }
+  if (sql_log_off)
+  {
+    str->q_append(SPIDER_SQL_SQL_LOG_ON_STR, SPIDER_SQL_SQL_LOG_ON_LEN);
+  } else {
+    str->q_append(SPIDER_SQL_SQL_LOG_OFF_STR, SPIDER_SQL_SQL_LOG_OFF_LEN);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_util::append_wait_timeout(
+  spider_string *str,
+  int wait_timeout
+) {
+  char timeout_str[SPIDER_SQL_INT_LEN];
+  int timeout_str_length;
+  DBUG_ENTER("spider_db_mbase_util::append_wait_timeout");
+  DBUG_PRINT("info",("spider this=%p", this));
+  timeout_str_length =
+    my_sprintf(timeout_str, (timeout_str, "%d", wait_timeout));
+  if (str->reserve(SPIDER_SQL_SEMICOLON_LEN + SPIDER_SQL_WAIT_TIMEOUT_LEN +
+    timeout_str_length))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  if (str->length())
+  {
+    str->q_append(SPIDER_SQL_SEMICOLON_STR, SPIDER_SQL_SEMICOLON_LEN);
+  }
+  str->q_append(SPIDER_SQL_WAIT_TIMEOUT_STR, SPIDER_SQL_WAIT_TIMEOUT_LEN);
+  str->q_append(timeout_str, timeout_str_length);
+  DBUG_RETURN(0);
+}
+
+#define SPIDER_REAL_AS_FLOAT_STR              "real_as_float"
+#define SPIDER_REAL_AS_FLOAT_LEN              (sizeof(SPIDER_REAL_AS_FLOAT_STR) - 1)
+#define SPIDER_PIPES_AS_CONCAT_STR            "pipes_as_concat"
+#define SPIDER_PIPES_AS_CONCAT_LEN            (sizeof(SPIDER_PIPES_AS_CONCAT_STR) - 1)
+#define SPIDER_ANSI_QUOTES_STR                "ansi_quotes"
+#define SPIDER_ANSI_QUOTES_LEN                (sizeof(SPIDER_ANSI_QUOTES_STR) - 1)
+#define SPIDER_IGNORE_SPACE_STR               "ignore_space"
+#define SPIDER_IGNORE_SPACE_LEN               (sizeof(SPIDER_IGNORE_SPACE_STR) - 1)
+#define SPIDER_IGNORE_BAD_TABLE_OPTIONS_STR   "ignore_bad_table_options"
+#define SPIDER_IGNORE_BAD_TABLE_OPTIONS_LEN   (sizeof(SPIDER_IGNORE_BAD_TABLE_OPTIONS_STR) - 1)
+#define SPIDER_ONLY_FULL_GROUP_BY_STR         "only_full_group_by"
+#define SPIDER_ONLY_FULL_GROUP_BY_LEN         (sizeof(SPIDER_ONLY_FULL_GROUP_BY_STR) - 1)
+#define SPIDER_NO_UNSIGNED_SUBTRACTION_STR    "no_unsigned_subtraction"
+#define SPIDER_NO_UNSIGNED_SUBTRACTION_LEN    (sizeof(SPIDER_NO_UNSIGNED_SUBTRACTION_STR) - 1)
+#define SPIDER_NO_DIR_IN_CREATE_STR           "no_dir_in_create"
+#define SPIDER_NO_DIR_IN_CREATE_LEN           (sizeof(SPIDER_NO_DIR_IN_CREATE_STR) - 1)
+#define SPIDER_POSTGRESQL_STR                 "postgresql"
+#define SPIDER_POSTGRESQL_LEN                 (sizeof(SPIDER_POSTGRESQL_STR) - 1)
+#define SPIDER_ORACLE_STR                     "oracle"
+#define SPIDER_ORACLE_LEN                     (sizeof(SPIDER_ORACLE_STR) - 1)
+#define SPIDER_MSSQL_STR                      "mssql"
+#define SPIDER_MSSQL_LEN                      (sizeof(SPIDER_MSSQL_STR) - 1)
+#define SPIDER_DB2_STR                        "db2"
+#define SPIDER_DB2_LEN                        (sizeof(SPIDER_DB2_STR) - 1)
+#define SPIDER_MAXDB_STR                      "maxdb"
+#define SPIDER_MAXDB_LEN                      (sizeof(SPIDER_MAXDB_STR) - 1)
+#define SPIDER_NO_KEY_OPTIONS_STR             "no_key_options"
+#define SPIDER_NO_KEY_OPTIONS_LEN             (sizeof(SPIDER_NO_KEY_OPTIONS_STR) - 1)
+#define SPIDER_NO_TABLE_OPTIONS_STR           "no_table_options"
+#define SPIDER_NO_TABLE_OPTIONS_LEN           (sizeof(SPIDER_NO_TABLE_OPTIONS_STR) - 1)
+#define SPIDER_NO_FIELD_OPTIONS_STR           "no_field_options"
+#define SPIDER_NO_FIELD_OPTIONS_LEN           (sizeof(SPIDER_NO_FIELD_OPTIONS_STR) - 1)
+#define SPIDER_MYSQL323_STR                   "mysql323"
+#define SPIDER_MYSQL323_LEN                   (sizeof(SPIDER_MYSQL323_STR) - 1)
+#define SPIDER_MYSQL40_STR                    "mysql40"
+#define SPIDER_MYSQL40_LEN                    (sizeof(SPIDER_MYSQL40_STR) - 1)
+#define SPIDER_ANSI_STR                       "ansi"
+#define SPIDER_ANSI_LEN                       (sizeof(SPIDER_ANSI_STR) - 1)
+#define SPIDER_NO_AUTO_VALUE_ON_ZERO_STR      "no_auto_value_on_zero"
+#define SPIDER_NO_AUTO_VALUE_ON_ZERO_LEN      (sizeof(SPIDER_NO_AUTO_VALUE_ON_ZERO_STR) - 1)
+#define SPIDER_NO_BACKSLASH_ESCAPES_STR       "no_backslash_escapes"
+#define SPIDER_NO_BACKSLASH_ESCAPES_LEN       (sizeof(SPIDER_NO_BACKSLASH_ESCAPES_STR) - 1)
+#define SPIDER_STRICT_TRANS_TABLES_STR        "strict_trans_tables"
+#define SPIDER_STRICT_TRANS_TABLES_LEN        (sizeof(SPIDER_STRICT_TRANS_TABLES_STR) - 1)
+#define SPIDER_STRICT_ALL_TABLES_STR          "strict_all_tables"
+#define SPIDER_STRICT_ALL_TABLES_LEN          (sizeof(SPIDER_STRICT_ALL_TABLES_STR) - 1)
+#define SPIDER_NO_ZERO_IN_DATE_STR            "no_zero_in_date"
+#define SPIDER_NO_ZERO_IN_DATE_LEN            (sizeof(SPIDER_NO_ZERO_IN_DATE_STR) - 1)
+#define SPIDER_NO_ZERO_DATE_STR               "no_zero_date"
+#define SPIDER_NO_ZERO_DATE_LEN               (sizeof(SPIDER_NO_ZERO_DATE_STR) - 1)
+#define SPIDER_INVALID_DATES_STR              "allow_invalid_dates"
+#define SPIDER_INVALID_DATES_LEN              (sizeof(SPIDER_INVALID_DATES_STR) - 1)
+#define SPIDER_ERROR_FOR_DIVISION_BY_ZERO_STR "error_for_division_by_zero"
+#define SPIDER_ERROR_FOR_DIVISION_BY_ZERO_LEN (sizeof(SPIDER_ERROR_FOR_DIVISION_BY_ZERO_STR) - 1)
+#define SPIDER_TRADITIONAL_STR                "traditional"
+#define SPIDER_TRADITIONAL_LEN                (sizeof(SPIDER_TRADITIONAL_STR) - 1)
+#define SPIDER_NO_AUTO_CREATE_USER_STR        "no_auto_create_user"
+#define SPIDER_NO_AUTO_CREATE_USER_LEN        (sizeof(SPIDER_NO_AUTO_CREATE_USER_STR) - 1)
+#define SPIDER_HIGH_NOT_PRECEDENCE_STR        "high_not_precedence"
+#define SPIDER_HIGH_NOT_PRECEDENCE_LEN        (sizeof(SPIDER_HIGH_NOT_PRECEDENCE_STR) - 1)
+#define SPIDER_NO_ENGINE_SUBSTITUTION_STR     "no_engine_substitution"
+#define SPIDER_NO_ENGINE_SUBSTITUTION_LEN     (sizeof(SPIDER_NO_ENGINE_SUBSTITUTION_STR) - 1)
+#define SPIDER_PAD_CHAR_TO_FULL_LENGTH_STR    "pad_char_to_full_length"
+#define SPIDER_PAD_CHAR_TO_FULL_LENGTH_LEN    (sizeof(SPIDER_PAD_CHAR_TO_FULL_LENGTH_STR) - 1)
+#define SPIDER_EMPTY_STRING_IS_NULL_STR       "empty_string_is_null"
+#define SPIDER_EMPTY_STRING_IS_NULL_LEN       (sizeof(SPIDER_EMPTY_STRING_IS_NULL_STR) - 1)
+#define SPIDER_SIMULTANEOUS_ASSIGNMENT_STR    "simultaneous_assignment"
+#define SPIDER_SIMULTANEOUS_ASSIGNMENT_LEN    (sizeof(SPIDER_SIMULTANEOUS_ASSIGNMENT_STR) - 1)
+#define SPIDER_TIME_ROUND_FRACTIONAL_STR      "time_round_fractional"
+#define SPIDER_TIME_ROUND_FRACTIONAL_LEN      (sizeof(SPIDER_TIME_ROUND_FRACTIONAL_STR) - 1)
+
+sql_mode_t full_sql_mode =
+#ifdef MODE_REAL_AS_FLOAT
+  MODE_REAL_AS_FLOAT |
+#endif
+#ifdef MODE_PIPES_AS_CONCAT
+  MODE_PIPES_AS_CONCAT |
+#endif
+#ifdef MODE_ANSI_QUOTES
+  MODE_ANSI_QUOTES |
+#endif
+#ifdef MODE_IGNORE_SPACE
+  MODE_IGNORE_SPACE |
+#endif
+#ifdef MODE_IGNORE_BAD_TABLE_OPTIONS
+  MODE_IGNORE_BAD_TABLE_OPTIONS |
+#endif
+#ifdef MODE_ONLY_FULL_GROUP_BY
+  MODE_ONLY_FULL_GROUP_BY |
+#endif
+#ifdef MODE_NO_UNSIGNED_SUBTRACTION
+  MODE_NO_UNSIGNED_SUBTRACTION |
+#endif
+#ifdef MODE_NO_DIR_IN_CREATE
+  MODE_NO_DIR_IN_CREATE |
+#endif
+#ifdef MODE_POSTGRESQL
+  MODE_POSTGRESQL |
+#endif
+#ifdef MODE_ORACLE
+  MODE_ORACLE |
+#endif
+#ifdef MODE_MSSQL
+  MODE_MSSQL |
+#endif
+#ifdef MODE_DB2
+  MODE_DB2 |
+#endif
+#ifdef MODE_MAXDB
+  MODE_MAXDB |
+#endif
+#ifdef MODE_NO_KEY_OPTIONS
+  MODE_NO_KEY_OPTIONS |
+#endif
+#ifdef MODE_NO_TABLE_OPTIONS
+  MODE_NO_TABLE_OPTIONS |
+#endif
+#ifdef MODE_NO_FIELD_OPTIONS
+  MODE_NO_FIELD_OPTIONS |
+#endif
+#ifdef MODE_MYSQL323
+  MODE_MYSQL323 |
+#endif
+#ifdef MODE_MYSQL40
+  MODE_MYSQL40 |
+#endif
+#ifdef MODE_ANSI
+  MODE_ANSI |
+#endif
+#ifdef MODE_NO_AUTO_VALUE_ON_ZERO
+  MODE_NO_AUTO_VALUE_ON_ZERO |
+#endif
+#ifdef MODE_NO_BACKSLASH_ESCAPES
+  MODE_NO_BACKSLASH_ESCAPES |
+#endif
+#ifdef MODE_STRICT_TRANS_TABLES
+  MODE_STRICT_TRANS_TABLES |
+#endif
+#ifdef MODE_STRICT_ALL_TABLES
+  MODE_STRICT_ALL_TABLES |
+#endif
+#ifdef MODE_NO_ZERO_IN_DATE
+  MODE_NO_ZERO_IN_DATE |
+#endif
+#ifdef MODE_NO_ZERO_DATE
+  MODE_NO_ZERO_DATE |
+#endif
+#ifdef MODE_INVALID_DATES
+  MODE_INVALID_DATES |
+#endif
+#ifdef MODE_ERROR_FOR_DIVISION_BY_ZERO
+  MODE_ERROR_FOR_DIVISION_BY_ZERO |
+#endif
+#ifdef MODE_TRADITIONAL
+  MODE_TRADITIONAL |
+#endif
+#ifdef MODE_NO_AUTO_CREATE_USER
+  MODE_NO_AUTO_CREATE_USER |
+#endif
+#ifdef MODE_HIGH_NOT_PRECEDENCE
+  MODE_HIGH_NOT_PRECEDENCE |
+#endif
+#ifdef MODE_NO_ENGINE_SUBSTITUTION
+  MODE_NO_ENGINE_SUBSTITUTION |
+#endif
+#ifdef MODE_PAD_CHAR_TO_FULL_LENGTH
+  MODE_PAD_CHAR_TO_FULL_LENGTH |
+#endif
+#ifdef MODE_EMPTY_STRING_IS_NULL
+  MODE_EMPTY_STRING_IS_NULL |
+#endif
+#ifdef MODE_SIMULTANEOUS_ASSIGNMENT
+  MODE_SIMULTANEOUS_ASSIGNMENT |
+#endif
+#ifdef MODE_TIME_ROUND_FRACTIONAL
+  MODE_TIME_ROUND_FRACTIONAL |
+#endif
+  0;
+
+#ifdef MODE_REAL_AS_FLOAT
+/* pushdown */
+#define SPIDER_SQL_MODE_REAL_AS_FLOAT
+#endif
+#ifdef MODE_PIPES_AS_CONCAT
+/* no pushdown */
+#endif
+#ifdef MODE_ANSI_QUOTES
+/* no pushdown */
+#endif
+#ifdef MODE_IGNORE_SPACE
+/* no pushdown */
+#endif
+#ifdef MODE_IGNORE_BAD_TABLE_OPTIONS
+/* pushdown */
+#define SPIDER_SQL_MODE_IGNORE_BAD_TABLE_OPTIONS
+#endif
+#ifdef MODE_ONLY_FULL_GROUP_BY
+/* no pushdown */
+#endif
+#ifdef MODE_NO_UNSIGNED_SUBTRACTION
+/* pushdown */
+#define SPIDER_SQL_MODE_NO_UNSIGNED_SUBTRACTION
+#endif
+#ifdef MODE_NO_DIR_IN_CREATE
+/* pushdown */
+#define SPIDER_SQL_MODE_NO_DIR_IN_CREATE
+#endif
+#ifdef MODE_POSTGRESQL
+/* no pushdown */
+#endif
+#ifdef MODE_ORACLE
+/* no pushdown */
+#endif
+#ifdef MODE_MSSQL
+/* no pushdown */
+#endif
+#ifdef MODE_DB2
+/* no pushdown */
+#endif
+#ifdef MODE_MAXDB
+/* no pushdown */
+#endif
+#ifdef MODE_NO_KEY_OPTIONS
+/* no pushdown */
+#endif
+#ifdef MODE_NO_TABLE_OPTIONS
+/* no pushdown */
+#endif
+#ifdef MODE_NO_FIELD_OPTIONS
+/* no pushdown */
+#endif
+#ifdef MODE_MYSQL323
+/* no pushdown */
+#endif
+#ifdef MODE_MYSQL40
+/* no pushdown */
+#endif
+#ifdef MODE_ANSI
+/* no pushdown */
+#endif
+#ifdef MODE_NO_AUTO_VALUE_ON_ZERO
+/* pushdown */
+#define SPIDER_SQL_MODE_NO_AUTO_VALUE_ON_ZERO
+#endif
+#ifdef MODE_NO_BACKSLASH_ESCAPES
+/* no pushdown */
+#endif
+#ifdef MODE_STRICT_TRANS_TABLES
+/* pushdown */
+#define SPIDER_SQL_MODE_STRICT_TRANS_TABLES
+#endif
+#ifdef MODE_STRICT_ALL_TABLES
+/* pushdown */
+#define SPIDER_SQL_MODE_STRICT_ALL_TABLES
+#endif
+#ifdef MODE_NO_ZERO_IN_DATE
+/* pushdown */
+#define SPIDER_SQL_MODE_NO_ZERO_IN_DATE
+#endif
+#ifdef MODE_NO_ZERO_DATE
+/* pushdown */
+#define SPIDER_SQL_MODE_NO_ZERO_DATE
+#endif
+#ifdef MODE_INVALID_DATES
+/* pushdown */
+#define SPIDER_SQL_MODE_INVALID_DATES
+#endif
+#ifdef MODE_ERROR_FOR_DIVISION_BY_ZERO
+/* pushdown */
+#define SPIDER_SQL_MODE_ERROR_FOR_DIVISION_BY_ZERO
+#endif
+#ifdef MODE_TRADITIONAL
+/* no pushdown */
+#endif
+#ifdef MODE_NO_AUTO_CREATE_USER
+/* pushdown */
+#define SPIDER_SQL_MODE_NO_AUTO_CREATE_USER
+#endif
+#ifdef MODE_HIGH_NOT_PRECEDENCE
+/* pushdown */
+#define SPIDER_SQL_MODE_HIGH_NOT_PRECEDENCE
+#endif
+#ifdef MODE_NO_ENGINE_SUBSTITUTION
+/* pushdown */
+#define SPIDER_SQL_MODE_NO_ENGINE_SUBSTITUTION
+#endif
+#ifdef MODE_PAD_CHAR_TO_FULL_LENGTH
+/* pushdown */
+#define SPIDER_SQL_MODE_PAD_CHAR_TO_FULL_LENGTH
+#endif
+#ifdef MODE_EMPTY_STRING_IS_NULL
+/* pushdown */
+#define SPIDER_SQL_MODE_EMPTY_STRING_IS_NULL
+#endif
+#ifdef MODE_SIMULTANEOUS_ASSIGNMENT
+/* pushdown */
+#define SPIDER_SQL_MODE_SIMULTANEOUS_ASSIGNMENT
+#endif
+#ifdef MODE_TIME_ROUND_FRACTIONAL
+/* pushdown */
+#define SPIDER_SQL_MODE_TIME_ROUND_FRACTIONAL
+#endif
+
+sql_mode_t pushdown_sql_mode =
+#ifdef SPIDER_SQL_MODE_REAL_AS_FLOAT
+  MODE_REAL_AS_FLOAT |
+#endif
+#ifdef SPIDER_SQL_MODE_PIPES_AS_CONCAT
+  MODE_PIPES_AS_CONCAT |
+#endif
+#ifdef SPIDER_SQL_MODE_ANSI_QUOTES
+  MODE_ANSI_QUOTES |
+#endif
+#ifdef SPIDER_SQL_MODE_IGNORE_SPACE
+  MODE_IGNORE_SPACE |
+#endif
+#ifdef SPIDER_SQL_MODE_IGNORE_BAD_TABLE_OPTIONS
+  MODE_IGNORE_BAD_TABLE_OPTIONS |
+#endif
+#ifdef SPIDER_SQL_MODE_ONLY_FULL_GROUP_BY
+  MODE_ONLY_FULL_GROUP_BY |
+#endif
+#ifdef SPIDER_SQL_MODE_NO_UNSIGNED_SUBTRACTION
+  MODE_NO_UNSIGNED_SUBTRACTION |
+#endif
+#ifdef SPIDER_SQL_MODE_NO_DIR_IN_CREATE
+  MODE_NO_DIR_IN_CREATE |
+#endif
+#ifdef SPIDER_SQL_MODE_POSTGRESQL
+  MODE_POSTGRESQL |
+#endif
+#ifdef SPIDER_SQL_MODE_ORACLE
+  MODE_ORACLE |
+#endif
+#ifdef SPIDER_SQL_MODE_MSSQL
+  MODE_MSSQL |
+#endif
+#ifdef SPIDER_SQL_MODE_DB2
+  MODE_DB2 |
+#endif
+#ifdef SPIDER_SQL_MODE_MAXDB
+  MODE_MAXDB |
+#endif
+#ifdef SPIDER_SQL_MODE_NO_KEY_OPTIONS
+  MODE_NO_KEY_OPTIONS |
+#endif
+#ifdef SPIDER_SQL_MODE_NO_TABLE_OPTIONS
+  MODE_NO_TABLE_OPTIONS |
+#endif
+#ifdef SPIDER_SQL_MODE_NO_FIELD_OPTIONS
+  MODE_NO_FIELD_OPTIONS |
+#endif
+#ifdef SPIDER_SQL_MODE_MYSQL323
+  MODE_MYSQL323 |
+#endif
+#ifdef SPIDER_SQL_MODE_MYSQL40
+  MODE_MYSQL40 |
+#endif
+#ifdef SPIDER_SQL_MODE_ANSI
+  MODE_ANSI |
+#endif
+#ifdef SPIDER_SQL_MODE_NO_AUTO_VALUE_ON_ZERO
+  MODE_NO_AUTO_VALUE_ON_ZERO |
+#endif
+#ifdef SPIDER_SQL_MODE_NO_BACKSLASH_ESCAPES
+  MODE_NO_BACKSLASH_ESCAPES |
+#endif
+#ifdef SPIDER_SQL_MODE_STRICT_TRANS_TABLES
+  MODE_STRICT_TRANS_TABLES |
+#endif
+#ifdef SPIDER_SQL_MODE_STRICT_ALL_TABLES
+  MODE_STRICT_ALL_TABLES |
+#endif
+#ifdef SPIDER_SQL_MODE_NO_ZERO_IN_DATE
+  MODE_NO_ZERO_IN_DATE |
+#endif
+#ifdef SPIDER_SQL_MODE_NO_ZERO_DATE
+  MODE_NO_ZERO_DATE |
+#endif
+#ifdef SPIDER_SQL_MODE_INVALID_DATES
+  MODE_INVALID_DATES |
+#endif
+#ifdef SPIDER_SQL_MODE_ERROR_FOR_DIVISION_BY_ZERO
+  MODE_ERROR_FOR_DIVISION_BY_ZERO |
+#endif
+#ifdef SPIDER_SQL_MODE_TRADITIONAL
+  MODE_TRADITIONAL |
+#endif
+#ifdef SPIDER_SQL_MODE_NO_AUTO_CREATE_USER
+  MODE_NO_AUTO_CREATE_USER |
+#endif
+#ifdef SPIDER_SQL_MODE_HIGH_NOT_PRECEDENCE
+  MODE_HIGH_NOT_PRECEDENCE |
+#endif
+#ifdef SPIDER_SQL_MODE_NO_ENGINE_SUBSTITUTION
+  MODE_NO_ENGINE_SUBSTITUTION |
+#endif
+#ifdef SPIDER_SQL_MODE_PAD_CHAR_TO_FULL_LENGTH
+  MODE_PAD_CHAR_TO_FULL_LENGTH |
+#endif
+#ifdef SPIDER_SQL_MODE_EMPTY_STRING_IS_NULL
+  MODE_EMPTY_STRING_IS_NULL |
+#endif
+#ifdef SPIDER_SQL_MODE_SIMULTANEOUS_ASSIGNMENT
+  MODE_SIMULTANEOUS_ASSIGNMENT |
+#endif
+#ifdef SPIDER_SQL_MODE_TIME_ROUND_FRACTIONAL
+  MODE_TIME_ROUND_FRACTIONAL |
+#endif
+  0;
+
+int spider_db_mbase_util::append_sql_mode_internal(
+  spider_string *str,
+  sql_mode_t sql_mode
+) {
+  DBUG_ENTER("spider_db_mbase_util::append_sql_mode_internal");
+  DBUG_PRINT("info",("spider this=%p", this));
+#ifdef SPIDER_SQL_MODE_REAL_AS_FLOAT
+  if (sql_mode & MODE_REAL_AS_FLOAT)
+  {
+    if (str->reserve(SPIDER_REAL_AS_FLOAT_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_REAL_AS_FLOAT_STR, SPIDER_REAL_AS_FLOAT_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+#ifdef SPIDER_SQL_MODE_PIPES_AS_CONCAT
+  if (sql_mode & MODE_PIPES_AS_CONCAT)
+  {
+    if (str->reserve(SPIDER_PIPES_AS_CONCAT_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_PIPES_AS_CONCAT_STR, SPIDER_PIPES_AS_CONCAT_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+#ifdef SPIDER_SQL_MODE_ANSI_QUOTES
+  if (sql_mode & MODE_ANSI_QUOTES)
+  {
+    if (str->reserve(SPIDER_ANSI_QUOTES_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_ANSI_QUOTES_STR, SPIDER_ANSI_QUOTES_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+#ifdef SPIDER_SQL_MODE_IGNORE_SPACE
+  if (sql_mode & MODE_IGNORE_SPACE)
+  {
+    if (str->reserve(SPIDER_IGNORE_SPACE_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_IGNORE_SPACE_STR, SPIDER_IGNORE_SPACE_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+#ifdef SPIDER_SQL_MODE_IGNORE_BAD_TABLE_OPTIONS
+  if (sql_mode & MODE_IGNORE_BAD_TABLE_OPTIONS)
+  {
+    if (str->reserve(SPIDER_IGNORE_BAD_TABLE_OPTIONS_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_IGNORE_BAD_TABLE_OPTIONS_STR, SPIDER_IGNORE_BAD_TABLE_OPTIONS_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+#ifdef SPIDER_SQL_MODE_ONLY_FULL_GROUP_BY
+  if (sql_mode & MODE_ONLY_FULL_GROUP_BY)
+  {
+    if (str->reserve(SPIDER_ONLY_FULL_GROUP_BY_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_ONLY_FULL_GROUP_BY_STR, SPIDER_ONLY_FULL_GROUP_BY_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+#ifdef SPIDER_SQL_MODE_NO_UNSIGNED_SUBTRACTION
+  if (sql_mode & MODE_NO_UNSIGNED_SUBTRACTION)
+  {
+    if (str->reserve(SPIDER_NO_UNSIGNED_SUBTRACTION_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_NO_UNSIGNED_SUBTRACTION_STR, SPIDER_NO_UNSIGNED_SUBTRACTION_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+#ifdef SPIDER_SQL_MODE_NO_DIR_IN_CREATE
+  if (sql_mode & MODE_NO_DIR_IN_CREATE)
+  {
+    if (str->reserve(SPIDER_NO_DIR_IN_CREATE_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_NO_DIR_IN_CREATE_STR, SPIDER_NO_DIR_IN_CREATE_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+#ifdef SPIDER_SQL_MODE_POSTGRESQL
+  if (sql_mode & MODE_POSTGRESQL)
+  {
+    if (str->reserve(SPIDER_POSTGRESQL_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_POSTGRESQL_STR, SPIDER_POSTGRESQL_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+#ifdef SPIDER_SQL_MODE_ORACLE
+  if (sql_mode & MODE_ORACLE)
+  {
+    if (str->reserve(SPIDER_ORACLE_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_ORACLE_STR, SPIDER_ORACLE_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+#ifdef SPIDER_SQL_MODE_MSSQL
+  if (sql_mode & MODE_MSSQL)
+  {
+    if (str->reserve(SPIDER_MSSQL_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_MSSQL_STR, SPIDER_MSSQL_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+#ifdef SPIDER_SQL_MODE_DB2
+  if (sql_mode & MODE_DB2)
+  {
+    if (str->reserve(SPIDER_DB2_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_DB2_STR, SPIDER_DB2_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+#ifdef SPIDER_SQL_MODE_MAXDB
+  if (sql_mode & MODE_MAXDB)
+  {
+    if (str->reserve(SPIDER_MAXDB_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_MAXDB_STR, SPIDER_MAXDB_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+#ifdef SPIDER_SQL_MODE_NO_KEY_OPTIONS
+  if (sql_mode & MODE_NO_KEY_OPTIONS)
+  {
+    if (str->reserve(SPIDER_NO_KEY_OPTIONS_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_NO_KEY_OPTIONS_STR, SPIDER_NO_KEY_OPTIONS_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+#ifdef SPIDER_SQL_MODE_NO_TABLE_OPTIONS
+  if (sql_mode & MODE_NO_TABLE_OPTIONS)
+  {
+    if (str->reserve(SPIDER_NO_TABLE_OPTIONS_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_NO_TABLE_OPTIONS_STR, SPIDER_NO_TABLE_OPTIONS_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+#ifdef SPIDER_SQL_MODE_NO_FIELD_OPTIONS
+  if (sql_mode & MODE_NO_FIELD_OPTIONS)
+  {
+    if (str->reserve(SPIDER_NO_FIELD_OPTIONS_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_NO_FIELD_OPTIONS_STR, SPIDER_NO_FIELD_OPTIONS_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+#ifdef SPIDER_SQL_MODE_MYSQL323
+  if (sql_mode & MODE_MYSQL323)
+  {
+    if (str->reserve(SPIDER_MYSQL323_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_MYSQL323_STR, SPIDER_MYSQL323_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+#ifdef SPIDER_SQL_MODE_MYSQL40
+  if (sql_mode & MODE_MYSQL40)
+  {
+    if (str->reserve(SPIDER_MYSQL40_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_MYSQL40_STR, SPIDER_MYSQL40_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+#ifdef SPIDER_SQL_MODE_ANSI
+  if (sql_mode & MODE_ANSI)
+  {
+    if (str->reserve(SPIDER_ANSI_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_ANSI_STR, SPIDER_ANSI_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+#ifdef SPIDER_SQL_MODE_NO_AUTO_VALUE_ON_ZERO
+  if (sql_mode & MODE_NO_AUTO_VALUE_ON_ZERO)
+  {
+    if (str->reserve(SPIDER_NO_AUTO_VALUE_ON_ZERO_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_NO_AUTO_VALUE_ON_ZERO_STR, SPIDER_NO_AUTO_VALUE_ON_ZERO_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+#ifdef SPIDER_SQL_MODE_NO_BACKSLASH_ESCAPES
+  if (sql_mode & MODE_NO_BACKSLASH_ESCAPES)
+  {
+    if (str->reserve(SPIDER_NO_BACKSLASH_ESCAPES_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_NO_BACKSLASH_ESCAPES_STR, SPIDER_NO_BACKSLASH_ESCAPES_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+#ifdef SPIDER_SQL_MODE_STRICT_TRANS_TABLES
+  if (sql_mode & MODE_STRICT_TRANS_TABLES)
+  {
+    if (str->reserve(SPIDER_STRICT_TRANS_TABLES_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_STRICT_TRANS_TABLES_STR, SPIDER_STRICT_TRANS_TABLES_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+#ifdef SPIDER_SQL_MODE_STRICT_ALL_TABLES
+  if (sql_mode & MODE_STRICT_ALL_TABLES)
+  {
+    if (str->reserve(SPIDER_STRICT_ALL_TABLES_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_STRICT_ALL_TABLES_STR, SPIDER_STRICT_ALL_TABLES_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+#ifdef SPIDER_SQL_MODE_NO_ZERO_IN_DATE
+  if (sql_mode & MODE_NO_ZERO_IN_DATE)
+  {
+    if (str->reserve(SPIDER_NO_ZERO_IN_DATE_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_NO_ZERO_IN_DATE_STR, SPIDER_NO_ZERO_IN_DATE_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+#ifdef SPIDER_SQL_MODE_NO_ZERO_DATE
+  if (sql_mode & MODE_NO_ZERO_DATE)
+  {
+    if (str->reserve(SPIDER_NO_ZERO_DATE_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_NO_ZERO_DATE_STR, SPIDER_NO_ZERO_DATE_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+#ifdef SPIDER_SQL_MODE_INVALID_DATES
+  if (sql_mode & MODE_INVALID_DATES)
+  {
+    if (str->reserve(SPIDER_INVALID_DATES_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_INVALID_DATES_STR, SPIDER_INVALID_DATES_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+#ifdef SPIDER_SQL_MODE_ERROR_FOR_DIVISION_BY_ZERO
+  if (sql_mode & MODE_ERROR_FOR_DIVISION_BY_ZERO)
+  {
+    if (str->reserve(SPIDER_ERROR_FOR_DIVISION_BY_ZERO_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_ERROR_FOR_DIVISION_BY_ZERO_STR, SPIDER_ERROR_FOR_DIVISION_BY_ZERO_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+#ifdef SPIDER_SQL_MODE_TRADITIONAL
+  if (sql_mode & MODE_TRADITIONAL)
+  {
+    if (str->reserve(SPIDER_TRADITIONAL_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_TRADITIONAL_STR, SPIDER_TRADITIONAL_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+#ifdef SPIDER_SQL_MODE_NO_AUTO_CREATE_USER
+  if (sql_mode & MODE_NO_AUTO_CREATE_USER)
+  {
+    if (str->reserve(SPIDER_NO_AUTO_CREATE_USER_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_NO_AUTO_CREATE_USER_STR, SPIDER_NO_AUTO_CREATE_USER_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+#ifdef SPIDER_SQL_MODE_HIGH_NOT_PRECEDENCE
+  if (sql_mode & MODE_HIGH_NOT_PRECEDENCE)
+  {
+    if (str->reserve(SPIDER_HIGH_NOT_PRECEDENCE_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_HIGH_NOT_PRECEDENCE_STR, SPIDER_HIGH_NOT_PRECEDENCE_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+#ifdef SPIDER_SQL_MODE_NO_ENGINE_SUBSTITUTION
+  if (sql_mode & MODE_NO_ENGINE_SUBSTITUTION)
+  {
+    if (str->reserve(SPIDER_NO_ENGINE_SUBSTITUTION_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_NO_ENGINE_SUBSTITUTION_STR, SPIDER_NO_ENGINE_SUBSTITUTION_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+#ifdef SPIDER_SQL_MODE_PAD_CHAR_TO_FULL_LENGTH
+  if (sql_mode & MODE_PAD_CHAR_TO_FULL_LENGTH)
+  {
+    if (str->reserve(SPIDER_PAD_CHAR_TO_FULL_LENGTH_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_PAD_CHAR_TO_FULL_LENGTH_STR, SPIDER_PAD_CHAR_TO_FULL_LENGTH_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+  DBUG_RETURN(0);
+}
+
+int spider_db_mariadb_util::append_sql_mode_internal(
+  spider_string *str,
+  sql_mode_t sql_mode
+) {
+  int error_num;
+  DBUG_ENTER("spider_db_mbase_util::append_sql_mode_internal");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if ((error_num = spider_db_mbase_util::append_sql_mode_internal(
+    str, sql_mode)))
+  {
+    DBUG_RETURN(error_num);
+  }
+#ifdef SPIDER_SQL_MODE_EMPTY_STRING_IS_NULL
+  if (sql_mode & MODE_EMPTY_STRING_IS_NULL)
+  {
+    if (str->reserve(SPIDER_EMPTY_STRING_IS_NULL_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_EMPTY_STRING_IS_NULL_STR, SPIDER_EMPTY_STRING_IS_NULL_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+#ifdef SPIDER_SQL_MODE_SIMULTANEOUS_ASSIGNMENT
+  if (sql_mode & MODE_SIMULTANEOUS_ASSIGNMENT)
+  {
+    if (str->reserve(SPIDER_SIMULTANEOUS_ASSIGNMENT_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_SIMULTANEOUS_ASSIGNMENT_STR, SPIDER_SIMULTANEOUS_ASSIGNMENT_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+#ifdef SPIDER_SQL_MODE_TIME_ROUND_FRACTIONAL
+  if (sql_mode & MODE_TIME_ROUND_FRACTIONAL)
+  {
+    if (str->reserve(SPIDER_TIME_ROUND_FRACTIONAL_LEN + SPIDER_SQL_COMMA_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_TIME_ROUND_FRACTIONAL_STR, SPIDER_TIME_ROUND_FRACTIONAL_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+#endif
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_util::append_sql_mode(
+  spider_string *str,
+  sql_mode_t sql_mode
+) {
+  int error_num;
+  uint length;
+  DBUG_ENTER("spider_db_mbase_util::append_sql_mode");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_SEMICOLON_LEN + SPIDER_SQL_SQL_MODE_LEN))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  if (str->length())
+  {
+    str->q_append(SPIDER_SQL_SEMICOLON_STR, SPIDER_SQL_SEMICOLON_LEN);
+  }
+  str->q_append(SPIDER_SQL_SQL_MODE_STR, SPIDER_SQL_SQL_MODE_LEN);
+  length = str->length();
+  if ((error_num = append_sql_mode_internal(str, sql_mode)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  if (str->length() > length)
+  {
+    str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  } else {
+    if (str->reserve(SPIDER_SQL_VALUE_QUOTE_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+  }
+  str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_util::append_time_zone(
+  spider_string *str,
+  Time_zone *time_zone
+) {
+  const String *tz_str = time_zone->get_name();
+  DBUG_ENTER("spider_db_mbase_util::append_time_zone");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_SEMICOLON_LEN + SPIDER_SQL_TIME_ZONE_LEN +
+    tz_str->length() + SPIDER_SQL_VALUE_QUOTE_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  if (str->length())
+    str->q_append(SPIDER_SQL_SEMICOLON_STR, SPIDER_SQL_SEMICOLON_LEN);
+  str->q_append(SPIDER_SQL_TIME_ZONE_STR, SPIDER_SQL_TIME_ZONE_LEN);
+  str->q_append(tz_str->ptr(), tz_str->length());
+  str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_util::append_loop_check(
+  spider_string *str,
+  SPIDER_CONN *conn
+) {
+  SPIDER_CONN_LOOP_CHECK *lcptr;
+  DBUG_ENTER("spider_db_mbase_util::append_loop_check");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider str=%s", str->c_ptr_safe()));
+  uint l = 0;
+  while ((lcptr = (SPIDER_CONN_LOOP_CHECK *) my_hash_element(
+    &conn->loop_check_queue, l)))
+  {
+    DBUG_PRINT("info",("spider lcptr=%p", lcptr));
+    if (str->reserve(SPIDER_SQL_SEMICOLON_LEN + SPIDER_SQL_SET_USER_VAL_LEN +
+      SPIDER_SQL_LOP_CHK_PRM_PRF_LEN + lcptr->to_name.length +
+      SPIDER_SQL_NAME_QUOTE_LEN + SPIDER_SQL_EQUAL_LEN +
+      SPIDER_SQL_VALUE_QUOTE_LEN +
+      lcptr->merged_value.length + SPIDER_SQL_VALUE_QUOTE_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    if (str->length())
+    {
+      str->q_append(SPIDER_SQL_SEMICOLON_STR, SPIDER_SQL_SEMICOLON_LEN);
+    }
+    str->q_append(SPIDER_SQL_SET_USER_VAL_STR, SPIDER_SQL_SET_USER_VAL_LEN);
+    str->q_append(SPIDER_SQL_LOP_CHK_PRM_PRF_STR,
+      SPIDER_SQL_LOP_CHK_PRM_PRF_LEN);
+    str->q_append(lcptr->to_name.str, lcptr->to_name.length);
+    str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+    str->q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    str->q_append(lcptr->merged_value.str, lcptr->merged_value.length);
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+
+    ++l;
+    DBUG_PRINT("info",("spider str=%s", str->c_ptr_safe()));
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_util::append_start_transaction(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_db_mbase_util::append_start_transaction");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_SEMICOLON_LEN +
+    SPIDER_SQL_START_TRANSACTION_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  if (str->length())
+  {
+    str->q_append(SPIDER_SQL_SEMICOLON_STR, SPIDER_SQL_SEMICOLON_LEN);
+  }
+  str->q_append(SPIDER_SQL_START_TRANSACTION_STR,
+    SPIDER_SQL_START_TRANSACTION_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_util::append_xa_start(
+  spider_string *str,
+  XID *xid
+) {
+  DBUG_ENTER("spider_db_mbase_util::append_xa_start");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_SEMICOLON_LEN +
+    SPIDER_SQL_XA_START_LEN + XIDDATASIZE + sizeof(long) + 9))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  if (str->length())
+  {
+    str->q_append(SPIDER_SQL_SEMICOLON_STR, SPIDER_SQL_SEMICOLON_LEN);
+  }
+  str->q_append(SPIDER_SQL_XA_START_STR, SPIDER_SQL_XA_START_LEN);
+  spider_db_append_xid_str(str, xid);
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_util::append_lock_table_head(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_db_mbase_util::append_lock_table_head");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_LOCK_TABLE_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_LOCK_TABLE_STR, SPIDER_SQL_LOCK_TABLE_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_util::append_lock_table_body(
+  spider_string *str,
+  const char *db_name,
+  uint db_name_length,
+  CHARSET_INFO *db_name_charset,
+  const char *table_name,
+  uint table_name_length,
+  CHARSET_INFO *table_name_charset,
+  int lock_type
+) {
+  DBUG_ENTER("spider_db_mbase_util::append_lock_table_body");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_NAME_QUOTE_LEN))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  if (
+    str->append(db_name, db_name_length, db_name_charset) ||
+    str->reserve((SPIDER_SQL_NAME_QUOTE_LEN) * 2 + SPIDER_SQL_DOT_LEN)
+  ) {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  str->q_append(SPIDER_SQL_DOT_STR, SPIDER_SQL_DOT_LEN);
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  if (
+    str->append(table_name, table_name_length, table_name_charset) ||
+    str->reserve(SPIDER_SQL_NAME_QUOTE_LEN +
+      spider_db_table_lock_len[lock_type])
+  ) {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  str->q_append(spider_db_table_lock_str[lock_type],
+    spider_db_table_lock_len[lock_type]);
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_util::append_lock_table_tail(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_db_mbase_util::append_lock_table_tail");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_util::append_unlock_table(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_db_mbase_util::append_unlock_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_UNLOCK_TABLE_LEN))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str->q_append(SPIDER_SQL_UNLOCK_TABLE_STR, SPIDER_SQL_UNLOCK_TABLE_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_util::open_item_func(
+  Item_func *item_func,
+  ha_spider *spider,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  bool use_fields,
+  spider_fields *fields
+) {
+  int error_num;
+  Item *item, **item_list = item_func->arguments();
+  Field *field;
+  uint roop_count, item_count = item_func->argument_count(), start_item = 0;
+  const char *func_name = SPIDER_SQL_NULL_CHAR_STR,
+    *separator_str = SPIDER_SQL_NULL_CHAR_STR,
+    *last_str = SPIDER_SQL_NULL_CHAR_STR;
+  int func_name_length = SPIDER_SQL_NULL_CHAR_LEN,
+    separator_str_length = SPIDER_SQL_NULL_CHAR_LEN,
+    last_str_length = SPIDER_SQL_NULL_CHAR_LEN;
+  int use_pushdown_udf;
+  bool merge_func = FALSE;
+  DBUG_ENTER("spider_db_mbase_util::open_item_func");
+  if (str)
+  {
+    if (str->reserve(SPIDER_SQL_OPEN_PAREN_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  }
+  DBUG_PRINT("info",("spider functype = %d", item_func->functype()));
+  switch (item_func->functype())
+  {
+    case Item_func::ISNULL_FUNC:
+      last_str = SPIDER_SQL_IS_NULL_STR;
+      last_str_length = SPIDER_SQL_IS_NULL_LEN;
+      break;
+    case Item_func::ISNOTNULL_FUNC:
+      last_str = SPIDER_SQL_IS_NOT_NULL_STR;
+      last_str_length = SPIDER_SQL_IS_NOT_NULL_LEN;
+      break;
+    case Item_func::UNKNOWN_FUNC:
+      func_name = (char*) item_func->func_name();
+      func_name_length = strlen(func_name);
+      DBUG_PRINT("info",("spider func_name = %s", func_name));
+      DBUG_PRINT("info",("spider func_name_length = %d", func_name_length));
+      if (func_name_length == 1 &&
+        (
+          !strncasecmp("+", func_name, func_name_length) ||
+          !strncasecmp("-", func_name, func_name_length) ||
+          !strncasecmp("*", func_name, func_name_length) ||
+          !strncasecmp("/", func_name, func_name_length) ||
+          !strncasecmp("%", func_name, func_name_length) ||
+          !strncasecmp("&", func_name, func_name_length) ||
+          !strncasecmp("|", func_name, func_name_length) ||
+          !strncasecmp("^", func_name, func_name_length)
+        )
+      ) {
+        /* no action */
+        break;
+      } else if (func_name_length == 2 &&
+        (
+          !strncasecmp("<<", func_name, func_name_length) ||
+          !strncasecmp(">>", func_name, func_name_length)
+        )
+      ) {
+        /* no action */
+        break;
+      } else if (func_name_length == 3 &&
+        !strncasecmp("div", func_name, func_name_length)
+      ) {
+        /* no action */
+        break;
+      } else if (func_name_length == 4)
+      {
+        if (
+          !strncasecmp("rand", func_name, func_name_length) &&
+#ifdef SPIDER_Item_args_arg_count_IS_PROTECTED
+          !item_func->argument_count()
+#else
+          !item_func->arg_count
+#endif
+        ) {
+          if (str)
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+          DBUG_RETURN(spider_db_open_item_int(item_func, NULL, spider, str,
+            alias, alias_length, dbton_id, use_fields, fields));
+        } else if (
+          !strncasecmp("trim", func_name, func_name_length) &&
+          item_count == 2
+        ) {
+          /* item_count == 1 means this TRIM() is without a remove_str */
+          item = item_list[0];
+          Item *item_tmp = item_list[1];
+          if (str) 
+          {
+            if (item_tmp->is_of_type(Item::CONST_ITEM, STRING_RESULT))
+            {
+              /* 1. append 'TRIM(BOTH ' */
+              if (str->reserve(SPIDER_SQL_TRIM_LEN + SPIDER_SQL_OPEN_PAREN_LEN +
+                               SPIDER_SQL_TRIM_BOTH_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_TRIM_STR, SPIDER_SQL_TRIM_LEN);
+              str->q_append(SPIDER_SQL_OPEN_PAREN_STR,
+                            SPIDER_SQL_OPEN_PAREN_LEN);
+              str->q_append(SPIDER_SQL_TRIM_BOTH_STR, SPIDER_SQL_TRIM_BOTH_LEN);
+              /* 2. append "remove_str"*/
+              if ((error_num = spider_db_print_item_type(
+                      item_tmp, NULL, spider, str, alias, alias_length, dbton_id,
+                      use_fields, fields)))
+                DBUG_RETURN(error_num);
+              /* 3. append ' FROM ' */
+              if (str->reserve(SPIDER_SQL_FROM_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_FROM_STR, SPIDER_SQL_FROM_LEN);
+              /* 4. append `field` */
+              if ((error_num = spider_db_print_item_type(
+                      item, NULL, spider, str, alias, alias_length, dbton_id,
+                      use_fields, fields)))
+                DBUG_RETURN(error_num);
+              /* 5. append ')' */
+              if (str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+                            SPIDER_SQL_CLOSE_PAREN_LEN);
+            }
+          }
+          item_count -= 2;
+          break;
+        }
+      } else if (func_name_length == 5)
+      {
+        if (
+          (!strncasecmp("ltrim", func_name, func_name_length) ||
+           !strncasecmp("rtrim", func_name, func_name_length)) &&
+          (item_count == 2)
+        ) {
+          /* the func_name for TRIM(LEADING ...) is LTRIM, for TRIM(TRAILING) is RTRIM */
+          /* item_count == 2 means this TRIM(LEADING/TRAILING ...) is with a remove_str */
+          item = item_list[0];
+          Item *item_tmp = item_list[1];
+          if (str) 
+          {
+            if (item_tmp->is_of_type(Item::CONST_ITEM, STRING_RESULT))
+            {
+              /* 1. append 'TRIM(LEADING ' or 'TRIM(TRAILING ' */
+              if (func_name[0] == 'l' || func_name[0] == 'L')
+              { /* ltrim */
+                if (str->reserve(SPIDER_SQL_TRIM_LEN + SPIDER_SQL_OPEN_PAREN_LEN +
+                                 SPIDER_SQL_TRIM_LEADING_LEN))
+                  DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                str->q_append(SPIDER_SQL_TRIM_STR, SPIDER_SQL_TRIM_LEN);
+                str->q_append(SPIDER_SQL_OPEN_PAREN_STR,
+                              SPIDER_SQL_OPEN_PAREN_LEN);
+                str->q_append(SPIDER_SQL_TRIM_LEADING_STR, SPIDER_SQL_TRIM_LEADING_LEN);
+              } else 
+              { /* rtrim */
+                if (str->reserve(SPIDER_SQL_TRIM_LEN + SPIDER_SQL_OPEN_PAREN_LEN +
+                                 SPIDER_SQL_TRIM_TRAILING_LEN))
+                  DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                str->q_append(SPIDER_SQL_TRIM_STR, SPIDER_SQL_TRIM_LEN);
+                str->q_append(SPIDER_SQL_OPEN_PAREN_STR,
+                              SPIDER_SQL_OPEN_PAREN_LEN);
+                str->q_append(SPIDER_SQL_TRIM_TRAILING_STR, SPIDER_SQL_TRIM_TRAILING_LEN);
+              }
+              /* 2. append "remove_str"*/
+              if ((error_num = spider_db_print_item_type(
+                  item_tmp, NULL, spider, str, alias, alias_length, dbton_id,
+                  use_fields, fields)))
+                DBUG_RETURN(error_num);
+              /* 3. append ' FROM ' */
+              if (str->reserve(SPIDER_SQL_FROM_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_FROM_STR, SPIDER_SQL_FROM_LEN);
+              /* 4. append `field` */
+              if ((error_num = spider_db_print_item_type(
+                  item, NULL, spider, str, alias, alias_length, dbton_id,
+                  use_fields, fields)))
+                DBUG_RETURN(error_num);
+              /* 5. append ')' */
+              if (str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+                            SPIDER_SQL_CLOSE_PAREN_LEN);
+            }
+          }
+          item_count -= 2;
+          break;
+        }
+      } else if (func_name_length == 6 &&
+        !strncasecmp("istrue", func_name, func_name_length)
+      ) {
+        last_str = SPIDER_SQL_IS_TRUE_STR;
+        last_str_length = SPIDER_SQL_IS_TRUE_LEN;
+        break;
+      } else if (func_name_length == 7)
+      {
+        if (!strncasecmp("isfalse", func_name, func_name_length))
+        {
+          last_str = SPIDER_SQL_IS_FALSE_STR;
+          last_str_length = SPIDER_SQL_IS_FALSE_LEN;
+          break;
+        } else if (
+          !strncasecmp("sysdate", func_name, func_name_length) ||
+          !strncasecmp("curdate", func_name, func_name_length) ||
+          !strncasecmp("curtime", func_name, func_name_length)
+        ) {
+          if (str)
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+          DBUG_RETURN(spider_db_open_item_string(item_func, NULL, spider, str,
+            alias, alias_length, dbton_id, use_fields, fields));
+        } else if (
+          !strncasecmp("convert", func_name, func_name_length)
+        ) {
+          if (str)
+          {
+            if (str->reserve(func_name_length * 2 + SPIDER_SQL_OPEN_PAREN_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(func_name, func_name_length);
+            str->q_append(SPIDER_SQL_OPEN_PAREN_STR,
+              SPIDER_SQL_OPEN_PAREN_LEN);
+            last_str = SPIDER_SQL_CLOSE_PAREN_STR;
+            last_str_length = SPIDER_SQL_CLOSE_PAREN_LEN;
+          }
+          break;
+        }
+      } else if (func_name_length == 8 &&
+        (
+          !strncasecmp("utc_date", func_name, func_name_length) ||
+          !strncasecmp("utc_time", func_name, func_name_length)
+        )
+      ) {
+        if (str)
+          str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+        DBUG_RETURN(spider_db_open_item_string(item_func, NULL, spider, str,
+          alias, alias_length, dbton_id, use_fields, fields));
+      } else if (func_name_length == 9 &&
+        !strncasecmp("isnottrue", func_name, func_name_length)
+      ) {
+        last_str = SPIDER_SQL_IS_NOT_TRUE_STR;
+        last_str_length = SPIDER_SQL_IS_NOT_TRUE_LEN;
+        break;
+      } else if (func_name_length == 10)
+      {
+        if (!strncasecmp("isnotfalse", func_name, func_name_length))
+        {
+          last_str = SPIDER_SQL_IS_NOT_FALSE_STR;
+          last_str_length = SPIDER_SQL_IS_NOT_FALSE_LEN;
+          break;
+        } else if (!strncasecmp("column_get", func_name, func_name_length))
+        {
+          if (str)
+          {
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+            if (str->reserve(func_name_length + SPIDER_SQL_OPEN_PAREN_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(func_name, func_name_length);
+            str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+          }
+          func_name = SPIDER_SQL_COMMA_STR;
+          func_name_length = SPIDER_SQL_COMMA_LEN;
+          separator_str = SPIDER_SQL_COMMA_STR;
+          separator_str_length = SPIDER_SQL_COMMA_LEN;
+          break;
+        }
+      } else if (func_name_length == 12)
+      {
+        if (!strncasecmp("cast_as_date", func_name, func_name_length))
+        {
+          item = item_list[0];
+          if (item->type() == Item::FUNC_ITEM)
+          {
+            DBUG_PRINT("info",("spider child is FUNC_ITEM"));
+            Item_func *ifunc = (Item_func *) item;
+            if (ifunc->functype() == Item_func::UNKNOWN_FUNC)
+            {
+              const char *child_func_name;
+              int child_func_name_length;
+              DBUG_PRINT("info",("spider child is UNKNOWN_FUNC"));
+              child_func_name = (char*) ifunc->func_name();
+              child_func_name_length = strlen(child_func_name);
+              DBUG_PRINT("info",("spider child func_name is %s", child_func_name));
+              if (
+                child_func_name_length == 10 &&
+                !strncasecmp("column_get", child_func_name, child_func_name_length)
+              ) {
+                DBUG_PRINT("info",("spider this is merge func"));
+                merge_func = TRUE;
+              }
+            }
+          }
+
+          if (str)
+          {
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+            if (!merge_func)
+            {
+              if (str->reserve(SPIDER_SQL_CAST_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_CAST_STR, SPIDER_SQL_CAST_LEN);
+            }
+          }
+          last_str = SPIDER_SQL_AS_DATE_STR;
+          last_str_length = SPIDER_SQL_AS_DATE_LEN;
+          break;
+        } else if (!strncasecmp("cast_as_time", func_name, func_name_length))
+        {
+          item = item_list[0];
+          if (item->type() == Item::FUNC_ITEM)
+          {
+            DBUG_PRINT("info",("spider child is FUNC_ITEM"));
+            Item_func *ifunc = (Item_func *) item;
+            if (ifunc->functype() == Item_func::UNKNOWN_FUNC)
+            {
+              const char *child_func_name;
+              int child_func_name_length;
+              DBUG_PRINT("info",("spider child is UNKNOWN_FUNC"));
+              child_func_name = (char*) ifunc->func_name();
+              child_func_name_length = strlen(child_func_name);
+              DBUG_PRINT("info",("spider child func_name is %s", child_func_name));
+              if (
+                child_func_name_length == 10 &&
+                !strncasecmp("column_get", child_func_name, child_func_name_length)
+              ) {
+                DBUG_PRINT("info",("spider this is merge func"));
+                merge_func = TRUE;
+              }
+            }
+          }
+
+          if (str)
+          {
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+            if (!merge_func)
+            {
+              if (str->reserve(SPIDER_SQL_CAST_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_CAST_STR, SPIDER_SQL_CAST_LEN);
+            }
+          }
+          last_str = SPIDER_SQL_AS_TIME_STR;
+          last_str_length = SPIDER_SQL_AS_TIME_LEN;
+          break;
+        }
+      } else if (func_name_length == 13)
+      {
+        if (!strncasecmp("utc_timestamp", func_name, func_name_length))
+        {
+          if (str)
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+          DBUG_RETURN(spider_db_open_item_string(item_func, NULL, spider, str,
+            alias, alias_length, dbton_id, use_fields, fields));
+        } else if (!strncasecmp("timestampdiff", func_name, func_name_length))
+        {
+#ifdef ITEM_FUNC_TIMESTAMPDIFF_ARE_PUBLIC
+          Item_func_timestamp_diff *item_func_timestamp_diff =
+            (Item_func_timestamp_diff *) item_func;
+          if (str)
+          {
+            const char *interval_str;
+            uint interval_len;
+            switch (item_func_timestamp_diff->int_type)
+            {
+              case INTERVAL_YEAR:
+                interval_str = SPIDER_SQL_YEAR_STR;
+                interval_len = SPIDER_SQL_YEAR_LEN;
+                break;
+              case INTERVAL_QUARTER:
+                interval_str = SPIDER_SQL_QUARTER_STR;
+                interval_len = SPIDER_SQL_QUARTER_LEN;
+                break;
+              case INTERVAL_MONTH:
+                interval_str = SPIDER_SQL_MONTH_STR;
+                interval_len = SPIDER_SQL_MONTH_LEN;
+                break;
+              case INTERVAL_WEEK:
+                interval_str = SPIDER_SQL_WEEK_STR;
+                interval_len = SPIDER_SQL_WEEK_LEN;
+                break;
+              case INTERVAL_DAY:
+                interval_str = SPIDER_SQL_DAY_STR;
+                interval_len = SPIDER_SQL_DAY_LEN;
+                break;
+              case INTERVAL_HOUR:
+                interval_str = SPIDER_SQL_HOUR_STR;
+                interval_len = SPIDER_SQL_HOUR_LEN;
+                break;
+              case INTERVAL_MINUTE:
+                interval_str = SPIDER_SQL_MINUTE_STR;
+                interval_len = SPIDER_SQL_MINUTE_LEN;
+                break;
+              case INTERVAL_SECOND:
+                interval_str = SPIDER_SQL_SECOND_STR;
+                interval_len = SPIDER_SQL_SECOND_LEN;
+                break;
+              case INTERVAL_MICROSECOND:
+                interval_str = SPIDER_SQL_MICROSECOND_STR;
+                interval_len = SPIDER_SQL_MICROSECOND_LEN;
+                break;
+              default:
+                interval_str = "";
+                interval_len = 0;
+                break;
+            }
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+            if (str->reserve(func_name_length + SPIDER_SQL_OPEN_PAREN_LEN +
+              interval_len + SPIDER_SQL_COMMA_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(func_name, func_name_length);
+            str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+            str->q_append(interval_str, interval_len);
+            str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+          }
+          if ((error_num = spider_db_print_item_type(item_list[0], NULL, spider,
+            str, alias, alias_length, dbton_id, use_fields, fields)))
+            DBUG_RETURN(error_num);
+          if (str)
+          {
+            if (str->reserve(SPIDER_SQL_COMMA_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+          }
+          if ((error_num = spider_db_print_item_type(item_list[1], NULL, spider,
+            str, alias, alias_length, dbton_id, use_fields, fields)))
+            DBUG_RETURN(error_num);
+          if (str)
+          {
+            if (str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+              SPIDER_SQL_CLOSE_PAREN_LEN);
+          }
+          DBUG_RETURN(0);
+#else
+          DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+#endif
+        }
+      } else if (func_name_length == 14)
+      {
+        if (!strncasecmp("cast_as_binary", func_name, func_name_length))
+        {
+          item = item_list[0];
+          if (item->type() == Item::FUNC_ITEM)
+          {
+            DBUG_PRINT("info",("spider child is FUNC_ITEM"));
+            Item_func *ifunc = (Item_func *) item;
+            if (ifunc->functype() == Item_func::UNKNOWN_FUNC)
+            {
+              const char *child_func_name;
+              int child_func_name_length;
+              DBUG_PRINT("info",("spider child is UNKNOWN_FUNC"));
+              child_func_name = (char*) ifunc->func_name();
+              child_func_name_length = strlen(child_func_name);
+              DBUG_PRINT("info",("spider child func_name is %s", child_func_name));
+              if (
+                child_func_name_length == 10 &&
+                !strncasecmp("column_get", child_func_name, child_func_name_length)
+              ) {
+                DBUG_PRINT("info",("spider this is merge func"));
+                merge_func = TRUE;
+              }
+            }
+          }
+
+          if (str)
+          {
+            char tmp_buf[MAX_FIELD_WIDTH], *tmp_ptr, *tmp_ptr2;
+            spider_string tmp_str(tmp_buf, MAX_FIELD_WIDTH, str->charset());
+            tmp_str.init_calc_mem(123);
+            tmp_str.length(0);
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+            if (!merge_func)
+            {
+              if (str->reserve(SPIDER_SQL_CAST_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_CAST_STR, SPIDER_SQL_CAST_LEN);
+            }
+#if MYSQL_VERSION_ID < 50500
+            item_func->print(tmp_str.get_str(), QT_IS);
+#else
+            item_func->print(tmp_str.get_str(), QT_TO_SYSTEM_CHARSET);
+#endif
+            tmp_str.mem_calc();
+            if (tmp_str.reserve(1))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            tmp_ptr = tmp_str.c_ptr_quick();
+            DBUG_PRINT("info",("spider tmp_ptr = %s", tmp_ptr));
+            while ((tmp_ptr2 = strstr(tmp_ptr, SPIDER_SQL_AS_BINARY_STR)))
+              tmp_ptr = tmp_ptr2 + 1;
+            last_str = tmp_ptr - 1;
+            last_str_length = strlen(last_str) - SPIDER_SQL_CLOSE_PAREN_LEN;
+          }
+          break;
+        } else if (!strncasecmp("cast_as_signed", func_name, func_name_length))
+        {
+          item = item_list[0];
+          if (item->type() == Item::FUNC_ITEM)
+          {
+            DBUG_PRINT("info",("spider child is FUNC_ITEM"));
+            Item_func *ifunc = (Item_func *) item;
+            if (ifunc->functype() == Item_func::UNKNOWN_FUNC)
+            {
+              const char *child_func_name;
+              int child_func_name_length;
+              DBUG_PRINT("info",("spider child is UNKNOWN_FUNC"));
+              child_func_name = (char*) ifunc->func_name();
+              child_func_name_length = strlen(child_func_name);
+              DBUG_PRINT("info",("spider child func_name is %s", child_func_name));
+              if (
+                child_func_name_length == 10 &&
+                !strncasecmp("column_get", child_func_name, child_func_name_length)
+              ) {
+                DBUG_PRINT("info",("spider this is merge func"));
+                merge_func = TRUE;
+              }
+            }
+          }
+
+          if (str)
+          {
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+            if (!merge_func)
+            {
+              if (str->reserve(SPIDER_SQL_CAST_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_CAST_STR, SPIDER_SQL_CAST_LEN);
+            }
+          }
+          last_str = SPIDER_SQL_AS_SIGNED_STR;
+          last_str_length = SPIDER_SQL_AS_SIGNED_LEN;
+          break;
+        }
+      } else if (func_name_length == 16)
+      {
+        if (!strncasecmp("cast_as_unsigned", func_name, func_name_length))
+        {
+          item = item_list[0];
+          if (item->type() == Item::FUNC_ITEM)
+          {
+            DBUG_PRINT("info",("spider child is FUNC_ITEM"));
+            Item_func *ifunc = (Item_func *) item;
+            if (ifunc->functype() == Item_func::UNKNOWN_FUNC)
+            {
+              const char *child_func_name;
+              int child_func_name_length;
+              DBUG_PRINT("info",("spider child is UNKNOWN_FUNC"));
+              child_func_name = (char*) ifunc->func_name();
+              child_func_name_length = strlen(child_func_name);
+              DBUG_PRINT("info",("spider child func_name is %s", child_func_name));
+              if (
+                child_func_name_length == 10 &&
+                !strncasecmp("column_get", child_func_name, child_func_name_length)
+              ) {
+                DBUG_PRINT("info",("spider this is merge func"));
+                merge_func = TRUE;
+              }
+            }
+          }
+
+          if (str)
+          {
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+            if (!merge_func)
+            {
+              if (str->reserve(SPIDER_SQL_CAST_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_CAST_STR, SPIDER_SQL_CAST_LEN);
+            }
+          }
+          last_str = SPIDER_SQL_AS_UNSIGNED_STR;
+          last_str_length = SPIDER_SQL_AS_UNSIGNED_LEN;
+          break;
+        } else if (!strncasecmp("decimal_typecast", func_name,
+          func_name_length))
+        {
+          item = item_list[0];
+          if (item->type() == Item::FUNC_ITEM)
+          {
+            DBUG_PRINT("info",("spider child is FUNC_ITEM"));
+            Item_func *ifunc = (Item_func *) item;
+            if (ifunc->functype() == Item_func::UNKNOWN_FUNC)
+            {
+              const char *child_func_name;
+              int child_func_name_length;
+              DBUG_PRINT("info",("spider child is UNKNOWN_FUNC"));
+              child_func_name = (char*) ifunc->func_name();
+              child_func_name_length = strlen(child_func_name);
+              DBUG_PRINT("info",("spider child func_name is %s", child_func_name));
+              if (
+                child_func_name_length == 10 &&
+                !strncasecmp("column_get", child_func_name, child_func_name_length)
+              ) {
+                DBUG_PRINT("info",("spider this is merge func"));
+                merge_func = TRUE;
+              }
+            }
+          }
+
+          if (str)
+          {
+            char tmp_buf[MAX_FIELD_WIDTH], *tmp_ptr, *tmp_ptr2;
+            spider_string tmp_str(tmp_buf, MAX_FIELD_WIDTH, str->charset());
+            tmp_str.init_calc_mem(124);
+            tmp_str.length(0);
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+            if (!merge_func)
+            {
+              if (str->reserve(SPIDER_SQL_CAST_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_CAST_STR, SPIDER_SQL_CAST_LEN);
+            }
+#if MYSQL_VERSION_ID < 50500
+            item_func->print(tmp_str.get_str(), QT_IS);
+#else
+            item_func->print(tmp_str.get_str(), QT_TO_SYSTEM_CHARSET);
+#endif
+            tmp_str.mem_calc();
+            if (tmp_str.reserve(1))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            tmp_ptr = tmp_str.c_ptr_quick();
+            DBUG_PRINT("info",("spider tmp_ptr = %s", tmp_ptr));
+            while ((tmp_ptr2 = strstr(tmp_ptr, SPIDER_SQL_AS_DECIMAL_STR)))
+              tmp_ptr = tmp_ptr2 + 1;
+            last_str = tmp_ptr - 1;
+            last_str_length = strlen(last_str) - SPIDER_SQL_CLOSE_PAREN_LEN;
+          }
+          break;
+        } else if (!strncasecmp("cast_as_datetime", func_name,
+          func_name_length))
+        {
+          item = item_list[0];
+          if (item->type() == Item::FUNC_ITEM)
+          {
+            DBUG_PRINT("info",("spider child is FUNC_ITEM"));
+            Item_func *ifunc = (Item_func *) item;
+            if (ifunc->functype() == Item_func::UNKNOWN_FUNC)
+            {
+              const char *child_func_name;
+              int child_func_name_length;
+              DBUG_PRINT("info",("spider child is UNKNOWN_FUNC"));
+              child_func_name = (char*) ifunc->func_name();
+              child_func_name_length = strlen(child_func_name);
+              DBUG_PRINT("info",("spider child func_name is %s", child_func_name));
+              if (
+                child_func_name_length == 10 &&
+                !strncasecmp("column_get", child_func_name, child_func_name_length)
+              ) {
+                DBUG_PRINT("info",("spider this is merge func"));
+                merge_func = TRUE;
+              }
+            }
+          }
+
+          if (str)
+          {
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+            if (!merge_func)
+            {
+              if (str->reserve(SPIDER_SQL_CAST_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_CAST_STR, SPIDER_SQL_CAST_LEN);
+            }
+          }
+          last_str = SPIDER_SQL_AS_DATETIME_STR;
+          last_str_length = SPIDER_SQL_AS_DATETIME_LEN;
+          break;
+        }
+      } else if (func_name_length == 17)
+      {
+        if (!strncasecmp("date_add_interval", func_name, func_name_length))
+        {
+          Item_date_add_interval *item_date_add_interval =
+            (Item_date_add_interval *) item_func;
+          func_name = spider_db_timefunc_interval_str[
+            item_date_add_interval->int_type];
+          func_name_length = strlen(func_name);
+          if ((error_num = spider_db_print_item_type(item_list[0], NULL, spider,
+            str, alias, alias_length, dbton_id, use_fields, fields)))
+            DBUG_RETURN(error_num);
+          if (str)
+          {
+            if (item_date_add_interval->date_sub_interval)
+            {
+              if (str->reserve(SPIDER_SQL_NEGINTERVAL_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_NEGINTERVAL_STR,
+                SPIDER_SQL_NEGINTERVAL_LEN);
+            } else {
+              if (str->reserve(SPIDER_SQL_INTERVAL_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_INTERVAL_STR, SPIDER_SQL_INTERVAL_LEN);
+            }
+          }
+          if ((error_num = spider_db_print_item_type(item_list[1], NULL, spider,
+            str, alias, alias_length, dbton_id, use_fields, fields)))
+            DBUG_RETURN(error_num);
+          if (str)
+          {
+            if (str->reserve(func_name_length + SPIDER_SQL_CLOSE_PAREN_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(func_name, func_name_length);
+            str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+              SPIDER_SQL_CLOSE_PAREN_LEN);
+          }
+          DBUG_RETURN(0);
+        }
+      }
+      if (str)
+      {
+        if (str->reserve(func_name_length + SPIDER_SQL_OPEN_PAREN_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(func_name, func_name_length);
+        str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+      }
+      func_name = SPIDER_SQL_COMMA_STR;
+      func_name_length = SPIDER_SQL_COMMA_LEN;
+      separator_str = SPIDER_SQL_COMMA_STR;
+      separator_str_length = SPIDER_SQL_COMMA_LEN;
+      last_str = SPIDER_SQL_CLOSE_PAREN_STR;
+      last_str_length = SPIDER_SQL_CLOSE_PAREN_LEN;
+      break;
+    case Item_func::NOW_FUNC:
+      if (str)
+        str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+      DBUG_RETURN(spider_db_open_item_string(item_func, NULL, spider,
+        str, alias, alias_length, dbton_id, use_fields, fields));
+    case Item_func::CHAR_TYPECAST_FUNC:
+      DBUG_PRINT("info",("spider CHAR_TYPECAST_FUNC"));
+      {
+        item = item_list[0];
+        if (item->type() == Item::FUNC_ITEM)
+        {
+          DBUG_PRINT("info",("spider child is FUNC_ITEM"));
+          Item_func *ifunc = (Item_func *) item;
+          if (ifunc->functype() == Item_func::UNKNOWN_FUNC)
+          {
+            const char *child_func_name;
+            int child_func_name_length;
+            DBUG_PRINT("info",("spider child is UNKNOWN_FUNC"));
+            child_func_name = (char*) ifunc->func_name();
+            child_func_name_length = strlen(child_func_name);
+            DBUG_PRINT("info",("spider child func_name is %s", child_func_name));
+            if (
+              child_func_name_length == 10 &&
+              !strncasecmp("column_get", child_func_name, child_func_name_length)
+            ) {
+              DBUG_PRINT("info",("spider this is merge func"));
+              merge_func = TRUE;
+            }
+          }
+        }
+
+        if (str)
+        {
+          char tmp_buf[MAX_FIELD_WIDTH], *tmp_ptr, *tmp_ptr2;
+          spider_string tmp_str(tmp_buf, MAX_FIELD_WIDTH, str->charset());
+          tmp_str.init_calc_mem(125);
+          tmp_str.length(0);
+          str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+          if (!merge_func)
+          {
+            if (str->reserve(SPIDER_SQL_CAST_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(SPIDER_SQL_CAST_STR, SPIDER_SQL_CAST_LEN);
+          }
+#if MYSQL_VERSION_ID < 50500
+          item_func->print(tmp_str.get_str(), QT_IS);
+#else
+          item_func->print(tmp_str.get_str(), QT_TO_SYSTEM_CHARSET);
+#endif
+          tmp_str.mem_calc();
+          if (tmp_str.reserve(1))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          tmp_ptr = tmp_str.c_ptr_quick();
+          DBUG_PRINT("info",("spider tmp_ptr = %s", tmp_ptr));
+          while ((tmp_ptr2 = strstr(tmp_ptr, SPIDER_SQL_AS_CHAR_STR)))
+            tmp_ptr = tmp_ptr2 + 1;
+          last_str = tmp_ptr - 1;
+          last_str_length = strlen(last_str) - SPIDER_SQL_CLOSE_PAREN_LEN;
+        }
+      }
+      break;
+    case Item_func::NOT_FUNC:
+      DBUG_PRINT("info",("spider NOT_FUNC"));
+      if (item_list[0]->type() == Item::COND_ITEM)
+      {
+        DBUG_PRINT("info",("spider item_list[0] is COND_ITEM"));
+        Item_cond *item_cond = (Item_cond *) item_list[0];
+        if (item_cond->functype() == Item_func::COND_AND_FUNC)
+        {
+          DBUG_PRINT("info",("spider item_cond is COND_AND_FUNC"));
+          List_iterator_fast<Item> lif(*(item_cond->argument_list()));
+          bool has_expr_cache_item = FALSE;
+          bool has_isnotnull_func = FALSE;
+          bool has_other_item = FALSE;
+          while((item = lif++))
+          {
+#ifdef SPIDER_HAS_EXPR_CACHE_ITEM
+            if (
+              item->type() == Item::EXPR_CACHE_ITEM
+            ) {
+              DBUG_PRINT("info",("spider EXPR_CACHE_ITEM"));
+              has_expr_cache_item = TRUE;
+            } else
+#endif
+            if (
+              item->type() == Item::FUNC_ITEM &&
+              ((Item_func *) item)->functype() == Item_func::ISNOTNULL_FUNC
+            ) {
+              DBUG_PRINT("info",("spider ISNOTNULL_FUNC"));
+              has_isnotnull_func = TRUE;
+            } else {
+              DBUG_PRINT("info",("spider has other item"));
+              DBUG_PRINT("info",("spider COND type=%d", item->type()));
+              has_other_item = TRUE;
+            }
+          }
+          if (has_expr_cache_item && has_isnotnull_func && !has_other_item)
+          {
+            DBUG_PRINT("info",("spider NOT EXISTS skip"));
+            DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+          }
+        }
+      }
+      if (str)
+      {
+        func_name = (char*) item_func->func_name();
+        func_name_length = strlen(func_name);
+        if (str->reserve(func_name_length + SPIDER_SQL_SPACE_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(func_name, func_name_length);
+        str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+      }
+      break;
+    case Item_func::NEG_FUNC:
+      if (str)
+      {
+        func_name = (char*) item_func->func_name();
+        func_name_length = strlen(func_name);
+        if (str->reserve(func_name_length + SPIDER_SQL_SPACE_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(func_name, func_name_length);
+        str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+      }
+      break;
+    case Item_func::IN_FUNC:
+      if (((Item_func_opt_neg *) item_func)->negated)
+      {
+        func_name = SPIDER_SQL_NOT_IN_STR;
+        func_name_length = SPIDER_SQL_NOT_IN_LEN;
+        separator_str = SPIDER_SQL_COMMA_STR;
+        separator_str_length = SPIDER_SQL_COMMA_LEN;
+        last_str = SPIDER_SQL_CLOSE_PAREN_STR;
+        last_str_length = SPIDER_SQL_CLOSE_PAREN_LEN;
+      } else {
+        func_name = SPIDER_SQL_IN_STR;
+        func_name_length = SPIDER_SQL_IN_LEN;
+        separator_str = SPIDER_SQL_COMMA_STR;
+        separator_str_length = SPIDER_SQL_COMMA_LEN;
+        last_str = SPIDER_SQL_CLOSE_PAREN_STR;
+        last_str_length = SPIDER_SQL_CLOSE_PAREN_LEN;
+      }
+      break;
+    case Item_func::BETWEEN:
+      if (((Item_func_opt_neg *) item_func)->negated)
+      {
+        func_name = SPIDER_SQL_NOT_BETWEEN_STR;
+        func_name_length = SPIDER_SQL_NOT_BETWEEN_LEN;
+        separator_str = SPIDER_SQL_AND_STR;
+        separator_str_length = SPIDER_SQL_AND_LEN;
+      } else {
+        func_name = (char*) item_func->func_name();
+        func_name_length = strlen(func_name);
+        separator_str = SPIDER_SQL_AND_STR;
+        separator_str_length = SPIDER_SQL_AND_LEN;
+      }
+      break;
+    case Item_func::UDF_FUNC:
+      use_pushdown_udf = spider_param_use_pushdown_udf(
+        spider->wide_handler->trx->thd,
+        spider->share->use_pushdown_udf);
+      if (!use_pushdown_udf)
+        DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+      if (str)
+      {
+        func_name = (char*) item_func->func_name();
+        func_name_length = strlen(func_name);
+        DBUG_PRINT("info",("spider func_name = %s", func_name));
+        DBUG_PRINT("info",("spider func_name_length = %d", func_name_length));
+        if (str->reserve(func_name_length + SPIDER_SQL_OPEN_PAREN_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(func_name, func_name_length);
+        str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+      }
+      func_name = SPIDER_SQL_COMMA_STR;
+      func_name_length = SPIDER_SQL_COMMA_LEN;
+      separator_str = SPIDER_SQL_COMMA_STR;
+      separator_str_length = SPIDER_SQL_COMMA_LEN;
+      last_str = SPIDER_SQL_CLOSE_PAREN_STR;
+      last_str_length = SPIDER_SQL_CLOSE_PAREN_LEN;
+      break;
+#ifdef MARIADB_BASE_VERSION
+    case Item_func::XOR_FUNC:
+#else
+    case Item_func::COND_XOR_FUNC:
+#endif
+      if (str)
+        str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+      DBUG_RETURN(
+        spider_db_open_item_cond((Item_cond *) item_func, spider, str,
+          alias, alias_length, dbton_id, use_fields, fields));
+    case Item_func::TRIG_COND_FUNC:
+      DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+    case Item_func::GUSERVAR_FUNC:
+      if (str)
+        str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+      if (item_func->result_type() == STRING_RESULT)
+        DBUG_RETURN(spider_db_open_item_string(item_func, NULL, spider, str,
+          alias, alias_length, dbton_id, use_fields, fields));
+      else
+        DBUG_RETURN(spider_db_open_item_int(item_func, NULL, spider, str,
+          alias, alias_length, dbton_id, use_fields, fields));
+    case Item_func::FT_FUNC:
+      if (spider_db_check_ft_idx(item_func, spider) == MAX_KEY)
+        DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+      start_item = 1;
+      if (str)
+      {
+        if (str->reserve(SPIDER_SQL_MATCH_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_MATCH_STR, SPIDER_SQL_MATCH_LEN);
+      }
+      separator_str = SPIDER_SQL_COMMA_STR;
+      separator_str_length = SPIDER_SQL_COMMA_LEN;
+      last_str = SPIDER_SQL_CLOSE_PAREN_STR;
+      last_str_length = SPIDER_SQL_CLOSE_PAREN_LEN;
+      break;
+    case Item_func::SP_EQUALS_FUNC:
+      if (str)
+      {
+        func_name = SPIDER_SQL_MBR_EQUAL_STR;
+        func_name_length = SPIDER_SQL_MBR_EQUAL_LEN;
+        DBUG_PRINT("info",("spider func_name = %s", func_name));
+        DBUG_PRINT("info",("spider func_name_length = %d", func_name_length));
+        if (str->reserve(func_name_length))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(func_name, func_name_length);
+      }
+      func_name = SPIDER_SQL_COMMA_STR;
+      func_name_length = SPIDER_SQL_COMMA_LEN;
+      separator_str = SPIDER_SQL_COMMA_STR;
+      separator_str_length = SPIDER_SQL_COMMA_LEN;
+      last_str = SPIDER_SQL_CLOSE_PAREN_STR;
+      last_str_length = SPIDER_SQL_CLOSE_PAREN_LEN;
+      break;
+    case Item_func::SP_DISJOINT_FUNC:
+    case Item_func::SP_INTERSECTS_FUNC:
+    case Item_func::SP_TOUCHES_FUNC:
+    case Item_func::SP_CROSSES_FUNC:
+    case Item_func::SP_WITHIN_FUNC:
+    case Item_func::SP_CONTAINS_FUNC:
+    case Item_func::SP_OVERLAPS_FUNC:
+      if (str)
+      {
+        func_name = (char*) item_func->func_name();
+        func_name_length = strlen(func_name);
+        DBUG_PRINT("info",("spider func_name = %s", func_name));
+        DBUG_PRINT("info",("spider func_name_length = %d", func_name_length));
+        if (str->reserve(
+#ifndef SPIDER_ITEM_GEOFUNC_NAME_HAS_MBR
+          SPIDER_SQL_MBR_LEN +
+#endif
+          func_name_length + SPIDER_SQL_OPEN_PAREN_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+#ifndef SPIDER_ITEM_GEOFUNC_NAME_HAS_MBR
+        str->q_append(SPIDER_SQL_MBR_STR, SPIDER_SQL_MBR_LEN);
+#endif
+        str->q_append(func_name, func_name_length);
+        str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+      }
+      func_name = SPIDER_SQL_COMMA_STR;
+      func_name_length = SPIDER_SQL_COMMA_LEN;
+      separator_str = SPIDER_SQL_COMMA_STR;
+      separator_str_length = SPIDER_SQL_COMMA_LEN;
+      last_str = SPIDER_SQL_CLOSE_PAREN_STR;
+      last_str_length = SPIDER_SQL_CLOSE_PAREN_LEN;
+      break;
+    case Item_func::EQ_FUNC:
+    case Item_func::EQUAL_FUNC:
+    case Item_func::NE_FUNC:
+    case Item_func::LT_FUNC:
+    case Item_func::LE_FUNC:
+    case Item_func::GE_FUNC:
+    case Item_func::GT_FUNC:
+      if (str)
+      {
+        func_name = (char*) item_func->func_name();
+        func_name_length = strlen(func_name);
+      }
+      break;
+    case Item_func::LIKE_FUNC:
+#ifdef SPIDER_LIKE_FUNC_HAS_GET_NEGATED
+      if (str)
+      {
+         if (((Item_func_like *)item_func)->get_negated())
+         {
+            func_name = SPIDER_SQL_NOT_LIKE_STR;
+            func_name_length = SPIDER_SQL_NOT_LIKE_LEN;
+         }
+         else
+         {
+            func_name = (char*)item_func->func_name();
+            func_name_length = strlen(func_name);
+         }
+      }
+      break;
+#else
+      DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+#endif
+    case Item_func::CASE_SEARCHED_FUNC:
+    case Item_func::CASE_SIMPLE_FUNC:
+#ifdef ITEM_FUNC_CASE_PARAMS_ARE_PUBLIC
+      Item_func_case *item_func_case = (Item_func_case *) item_func;
+      if (str)
+      {
+        if (str->reserve(SPIDER_SQL_CASE_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_CASE_STR, SPIDER_SQL_CASE_LEN);
+      }
+      if (item_func_case->first_expr_num != -1)
+      {
+        if ((error_num = spider_db_print_item_type(
+          item_list[item_func_case->first_expr_num], NULL, spider, str,
+          alias, alias_length, dbton_id, use_fields, fields)))
+          DBUG_RETURN(error_num);
+      }
+      for (roop_count = 0; roop_count < item_func_case->ncases;
+        roop_count += 2)
+      {
+        if (str)
+        {
+          if (str->reserve(SPIDER_SQL_WHEN_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(SPIDER_SQL_WHEN_STR, SPIDER_SQL_WHEN_LEN);
+        }
+        if ((error_num = spider_db_print_item_type(
+          item_list[roop_count], NULL, spider, str,
+          alias, alias_length, dbton_id, use_fields, fields)))
+          DBUG_RETURN(error_num);
+        if (str)
+        {
+          if (str->reserve(SPIDER_SQL_THEN_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(SPIDER_SQL_THEN_STR, SPIDER_SQL_THEN_LEN);
+        }
+        if ((error_num = spider_db_print_item_type(
+          item_list[roop_count + 1], NULL, spider, str,
+          alias, alias_length, dbton_id, use_fields, fields)))
+          DBUG_RETURN(error_num);
+      }
+      if (item_func_case->else_expr_num != -1)
+      {
+        if (str)
+        {
+          if (str->reserve(SPIDER_SQL_ELSE_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(SPIDER_SQL_ELSE_STR, SPIDER_SQL_ELSE_LEN);
+        }
+        if ((error_num = spider_db_print_item_type(
+          item_list[item_func_case->else_expr_num], NULL, spider, str,
+          alias, alias_length, dbton_id, use_fields, fields)))
+          DBUG_RETURN(error_num);
+      }
+      if (str)
+      {
+        if (str->reserve(SPIDER_SQL_END_LEN + SPIDER_SQL_CLOSE_PAREN_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_END_STR, SPIDER_SQL_END_LEN);
+        str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+          SPIDER_SQL_CLOSE_PAREN_LEN);
+      }
+      DBUG_RETURN(0);
+#else
+      DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+#endif
+    case Item_func::JSON_EXTRACT_FUNC:
+      func_name = (char*) item_func->func_name();
+      func_name_length = strlen(func_name);
+      if (str)
+      {
+        if (str->reserve(func_name_length + SPIDER_SQL_OPEN_PAREN_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(func_name, func_name_length);
+        str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+      }
+      func_name = SPIDER_SQL_COMMA_STR;
+      func_name_length = SPIDER_SQL_COMMA_LEN;
+      separator_str = SPIDER_SQL_COMMA_STR;
+      separator_str_length = SPIDER_SQL_COMMA_LEN;
+      last_str = SPIDER_SQL_CLOSE_PAREN_STR;
+      last_str_length = SPIDER_SQL_CLOSE_PAREN_LEN;
+      break;
+    default:
+      THD *thd = spider->wide_handler->trx->thd;
+      SPIDER_SHARE *share = spider->share;
+      if (spider_param_skip_default_condition(thd,
+        share->skip_default_condition))
+        DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+      if (str)
+      {
+        func_name = (char*) item_func->func_name();
+        func_name_length = strlen(func_name);
+      }
+      break;
+  }
+  DBUG_PRINT("info",("spider func_name = %s", func_name));
+  DBUG_PRINT("info",("spider func_name_length = %d", func_name_length));
+  DBUG_PRINT("info",("spider separator_str = %s", separator_str));
+  DBUG_PRINT("info",("spider separator_str_length = %d", separator_str_length));
+  DBUG_PRINT("info",("spider last_str = %s", last_str));
+  DBUG_PRINT("info",("spider last_str_length = %d", last_str_length));
+  if (item_count)
+  {
+    /* Find the field in the list of items of the expression tree */
+    field = spider_db_find_field_in_item_list(item_list,
+                                              item_count, start_item,
+                                              str,
+                                              func_name, func_name_length);
+    item_count--;
+    /*
+      Loop through the items of the current function expression to
+      print its portion of the statement
+    */
+    for (roop_count = start_item; roop_count < item_count; roop_count++)
+    {
+      item = item_list[roop_count];
+      if ((error_num = spider_db_print_item_type(item, field, spider, str,
+        alias, alias_length, dbton_id, use_fields, fields)))
+        DBUG_RETURN(error_num);
+      if (roop_count == 1)
+      {
+        /* Remaining operands need to be preceded by the separator */
+        func_name = separator_str;
+        func_name_length = separator_str_length;
+      }
+      if (str)
+      {
+        if (str->reserve(func_name_length + SPIDER_SQL_SPACE_LEN * 2))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+        str->q_append(func_name, func_name_length);
+        str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+      }
+    }
+
+    /* Print the last operand value */
+    item = item_list[roop_count];
+    if ((error_num = spider_db_print_item_type(item, field, spider, str,
+      alias, alias_length, dbton_id, use_fields, fields)))
+      DBUG_RETURN(error_num);
+  }
+
+  if (item_func->functype() == Item_func::FT_FUNC)
+  {
+    Item_func_match *item_func_match = (Item_func_match *)item_func;
+    if (str)
+    {
+      if (str->reserve(SPIDER_SQL_AGAINST_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_AGAINST_STR, SPIDER_SQL_AGAINST_LEN);
+    }
+    item = item_list[0];
+    if ((error_num = spider_db_print_item_type(item, NULL, spider, str,
+      alias, alias_length, dbton_id, use_fields, fields)))
+      DBUG_RETURN(error_num);
+    if (str)
+    {
+      if (str->reserve(
+        ((item_func_match->flags & FT_BOOL) ?
+          SPIDER_SQL_IN_BOOLEAN_MODE_LEN : 0) +
+        ((item_func_match->flags & FT_EXPAND) ?
+          SPIDER_SQL_WITH_QUERY_EXPANSION_LEN : 0)
+      ))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      if (item_func_match->flags & FT_BOOL)
+        str->q_append(SPIDER_SQL_IN_BOOLEAN_MODE_STR,
+          SPIDER_SQL_IN_BOOLEAN_MODE_LEN);
+      if (item_func_match->flags & FT_EXPAND)
+        str->q_append(SPIDER_SQL_WITH_QUERY_EXPANSION_STR,
+          SPIDER_SQL_WITH_QUERY_EXPANSION_LEN);
+    }
+  } else if (item_func->functype() == Item_func::UNKNOWN_FUNC)
+  {
+    if (
+      func_name_length == 7 &&
+      !strncasecmp("convert", func_name, func_name_length)
+    ) {
+      if (str)
+      {
+        Item_func_conv_charset *item_func_conv_charset =
+          (Item_func_conv_charset *)item_func;
+        CHARSET_INFO *conv_charset =
+          item_func_conv_charset->SPIDER_Item_func_conv_charset_conv_charset;
+        uint cset_length = strlen(conv_charset->csname);
+        if (str->reserve(SPIDER_SQL_USING_LEN + cset_length))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_USING_STR, SPIDER_SQL_USING_LEN);
+        str->q_append(conv_charset->csname, cset_length);
+      }
+    }
+  }
+  if (str)
+  {
+    if (merge_func)
+      str->length(str->length() - SPIDER_SQL_CLOSE_PAREN_LEN);
+    if (str->reserve(last_str_length + SPIDER_SQL_CLOSE_PAREN_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(last_str, last_str_length);
+    str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+  }
+  DBUG_RETURN(0);
+}
+
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+int spider_db_mbase_util::open_item_sum_func(
+  Item_sum *item_sum,
+  ha_spider *spider,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  bool use_fields,
+  spider_fields *fields
+) {
+  uint roop_count, item_count = item_sum->get_arg_count();
+  int error_num;
+  DBUG_ENTER("spider_db_mbase_util::open_item_sum_func");
+  DBUG_PRINT("info",("spider Sumfunctype = %d", item_sum->sum_func()));
+  switch (item_sum->sum_func())
+  {
+    case Item_sum::COUNT_FUNC:
+    case Item_sum::SUM_FUNC:
+    case Item_sum::MIN_FUNC:
+    case Item_sum::MAX_FUNC:
+      {
+        const char *func_name = item_sum->func_name();
+        uint func_name_length = strlen(func_name);
+        Item *item, **args = item_sum->get_args();
+        if (str)
+        {
+          if (str->reserve(func_name_length))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(func_name, func_name_length);
+        }
+        if (item_count)
+        {
+          item_count--;
+          for (roop_count = 0; roop_count < item_count; roop_count++)
+          {
+            item = args[roop_count];
+            if ((error_num = spider_db_print_item_type(item, NULL, spider, str,
+              alias, alias_length, dbton_id, use_fields, fields)))
+              DBUG_RETURN(error_num);
+            if (str)
+            {
+              if (str->reserve(SPIDER_SQL_COMMA_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+            }
+          }
+          item = args[roop_count];
+          if ((error_num = spider_db_print_item_type(item, NULL, spider, str,
+            alias, alias_length, dbton_id, use_fields, fields)))
+            DBUG_RETURN(error_num);
+        }
+        if (str)
+        {
+          if (str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+            SPIDER_SQL_CLOSE_PAREN_LEN);
+        }
+      }
+      break;
+    case Item_sum::COUNT_DISTINCT_FUNC:
+    case Item_sum::SUM_DISTINCT_FUNC:
+    case Item_sum::AVG_FUNC:
+    case Item_sum::AVG_DISTINCT_FUNC:
+      {
+        if (!use_fields)
+          DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+        const char *func_name = item_sum->func_name();
+        uint func_name_length = strlen(func_name);
+        Item *item, **args = item_sum->get_args();
+        if (str)
+        {
+          if (str->reserve(func_name_length))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(func_name, func_name_length);
+        }
+        if (item_count)
+        {
+          item_count--;
+          for (roop_count = 0; roop_count < item_count; roop_count++)
+          {
+            item = args[roop_count];
+            if ((error_num = spider_db_print_item_type(item, NULL, spider, str,
+              alias, alias_length, dbton_id, use_fields, fields)))
+              DBUG_RETURN(error_num);
+            if (str)
+            {
+              if (str->reserve(SPIDER_SQL_COMMA_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+            }
+          }
+          item = args[roop_count];
+          if ((error_num = spider_db_print_item_type(item, NULL, spider, str,
+            alias, alias_length, dbton_id, use_fields, fields)))
+            DBUG_RETURN(error_num);
+        }
+        if (str)
+        {
+          if (str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+            SPIDER_SQL_CLOSE_PAREN_LEN);
+        }
+      }
+      break;
+    case Item_sum::STD_FUNC:
+    case Item_sum::VARIANCE_FUNC:
+    case Item_sum::SUM_BIT_FUNC:
+    case Item_sum::UDF_SUM_FUNC:
+    case Item_sum::GROUP_CONCAT_FUNC:
+    default:
+      DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+  }
+  DBUG_RETURN(0);
+}
+#endif
+
+int spider_db_mbase_util::append_escaped_util(
+  spider_string *to,
+  String *from
+) {
+  DBUG_ENTER("spider_db_mbase_util::append_escaped_util");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider from=%s", from->charset()->csname));
+  DBUG_PRINT("info",("spider to=%s", to->charset()->csname));
+  to->append_escape_string(from->ptr(), from->length());
+  DBUG_RETURN(0);
+}
+
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+int spider_db_mbase_util::append_table(
+  ha_spider *spider,
+  spider_fields *fields,
+  spider_string *str,
+  TABLE_LIST *table_list,
+  TABLE_LIST **used_table_list,
+  uint *current_pos,
+  TABLE_LIST **cond_table_list_ptr,
+  bool top_down,
+  bool first
+) {
+  int error_num;
+  bool use_cond_table_list = FALSE;
+  spider_mbase_share *db_share;
+  spider_mbase_handler *dbton_hdl;
+  SPIDER_TABLE_HOLDER *table_holder;
+  TABLE_LIST *cond_table_list = *cond_table_list_ptr;
+  ha_spider *spd;
+  DBUG_ENTER("spider_db_mbase_util::append_table");
+  DBUG_PRINT("info",("spider table_list=%p", table_list));
+  DBUG_PRINT("info",("spider table_list->outer_join=%u",
+    table_list->outer_join));
+  DBUG_PRINT("info",("spider table_list->on_expr=%p",
+    table_list->on_expr));
+  DBUG_PRINT("info",("spider table_list->join_using_fields=%p",
+    table_list->join_using_fields));
+  DBUG_PRINT("info",("spider table_list->table=%p",
+    table_list->table));
+  if (!top_down && table_list->embedding)
+  {
+    if ((error_num = append_embedding_tables(spider, fields, str,
+      table_list->embedding, used_table_list, current_pos,
+      cond_table_list_ptr)))
+      DBUG_RETURN(error_num);
+  } else if (!table_list->table)
+  {
+    if ((error_num = append_tables_top_down(spider, fields, str, table_list,
+      used_table_list, current_pos, cond_table_list_ptr)))
+      DBUG_RETURN(error_num);
+  } else {
+    if (
+      table_list->outer_join ||
+      table_list->on_expr ||
+      table_list->join_using_fields
+    ) {
+      DBUG_PRINT("info",("spider use table_list"));
+      if (table_list->outer_join & JOIN_TYPE_LEFT)
+      {
+        if (str)
+        {
+          if (str->reserve(SPIDER_SQL_LEFT_JOIN_LEN))
+          {
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          }
+          str->q_append(SPIDER_SQL_LEFT_JOIN_STR, SPIDER_SQL_LEFT_JOIN_LEN);
+        }
+      } else {
+        if (str)
+        {
+          if (str->reserve(SPIDER_SQL_JOIN_LEN))
+          {
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          }
+          str->q_append(SPIDER_SQL_JOIN_STR, SPIDER_SQL_JOIN_LEN);
+        }
+      }
+    } else if (
+      cond_table_list &&
+      (
+        cond_table_list->outer_join ||
+        cond_table_list->on_expr ||
+        cond_table_list->join_using_fields
+      )
+    ) {
+      DBUG_PRINT("info",("spider use cond_table_list"));
+      if (cond_table_list->outer_join & (JOIN_TYPE_LEFT | JOIN_TYPE_RIGHT))
+      {
+        if (str)
+        {
+          if (str->reserve(SPIDER_SQL_LEFT_JOIN_LEN))
+          {
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          }
+          str->q_append(SPIDER_SQL_LEFT_JOIN_STR, SPIDER_SQL_LEFT_JOIN_LEN);
+        }
+      } else {
+        if (str)
+        {
+          if (str->reserve(SPIDER_SQL_JOIN_LEN))
+          {
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          }
+          str->q_append(SPIDER_SQL_JOIN_STR, SPIDER_SQL_JOIN_LEN);
+        }
+      }
+      use_cond_table_list = TRUE;
+    } else if (*current_pos > 0 && !first)
+    {
+      DBUG_PRINT("info",("spider no condition"));
+      if (top_down)
+      {
+        if (str)
+        {
+          if (str->reserve(SPIDER_SQL_JOIN_LEN))
+          {
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          }
+          str->q_append(SPIDER_SQL_JOIN_STR, SPIDER_SQL_JOIN_LEN);
+        }
+      } else {
+        if (str)
+        {
+          if (str->reserve(SPIDER_SQL_COMMA_LEN))
+          {
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          }
+          str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+        }
+      }
+    }
+
+    if (str)
+    {
+      table_holder = fields->get_table_holder(table_list->table);
+      spd = table_holder->spider;
+      db_share = (spider_mbase_share *)
+        spd->share->dbton_share[dbton_id];
+      dbton_hdl = (spider_mbase_handler *)
+        spd->dbton_handler[dbton_id];
+
+      dbton_hdl->table_name_pos = str->length();
+
+      if (str->reserve(
+        db_share->db_nm_max_length +
+        SPIDER_SQL_DOT_LEN + /* SPIDER_SQL_NAME_QUOTE_LEN */ 4 +
+        db_share->table_nm_max_length + SPIDER_SQL_SPACE_LEN +
+        table_holder->alias->length() - SPIDER_SQL_DOT_LEN
+      )) {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+
+      if ((error_num = db_share->append_table_name_with_adjusting(str,
+        spd->conn_link_idx[dbton_hdl->first_link_idx])))
+      {
+        DBUG_RETURN(error_num);
+      }
+      str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+      str->q_append(table_holder->alias->ptr(),
+        table_holder->alias->length() - SPIDER_SQL_DOT_LEN);
+    }
+    used_table_list[(*current_pos)++] = table_list;
+
+    if (str)
+    {
+      List<String> *join_using_fields = table_list->join_using_fields;
+      if (!join_using_fields && cond_table_list)
+      {
+        join_using_fields = cond_table_list->join_using_fields;
+      }
+
+      if (join_using_fields)
+      {
+        if (str->reserve(SPIDER_SQL_USING_LEN + SPIDER_SQL_OPEN_PAREN_LEN))
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        str->q_append(SPIDER_SQL_USING_STR, SPIDER_SQL_USING_LEN);
+        str->q_append(SPIDER_SQL_OPEN_PAREN_STR,
+          SPIDER_SQL_OPEN_PAREN_LEN);
+        List_iterator_fast<String> it2(*join_using_fields);
+        String *ptr;
+        while ((ptr = it2++))
+        {
+          if (str->reserve(ptr->length() + SPIDER_SQL_COMMA_LEN))
+          {
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          }
+          str->q_append(ptr->ptr(), ptr->length());
+          str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+        }
+        str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+        if (str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN))
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+          SPIDER_SQL_CLOSE_PAREN_LEN);
+      }
+    }
+
+    Item *on_expr = table_list->on_expr;
+    if (!on_expr && cond_table_list)
+    {
+      on_expr = cond_table_list->on_expr;
+    }
+
+    if (on_expr)
+    {
+      if (str)
+      {
+        if (str->reserve(SPIDER_SQL_ON_LEN))
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        str->q_append(SPIDER_SQL_ON_STR, SPIDER_SQL_ON_LEN);
+      }
+      if ((error_num = spider_db_print_item_type(on_expr, NULL,
+        spider, str, NULL, 0, dbton_id, TRUE, fields)))
+      {
+        DBUG_RETURN(error_num);
+      }
+    }
+
+    if (use_cond_table_list)
+    {
+      (*cond_table_list_ptr) = NULL;
+      DBUG_PRINT("info",("spider cond_table_list=%p", (*cond_table_list_ptr)));
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_util::append_tables_top_down(
+  ha_spider *spider,
+  spider_fields *fields,
+  spider_string *str,
+  TABLE_LIST *table_list,
+  TABLE_LIST **used_table_list,
+  uint *current_pos,
+  TABLE_LIST **cond_table_list_ptr
+) {
+  int error_num;
+  uint outer_join_backup;
+  TABLE_LIST *cur_table_list, *prev_table_list = NULL, *cond_table_list = NULL;
+  bool first = TRUE;
+  DBUG_ENTER("spider_db_mbase_util::append_tables_top_down");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (
+    table_list->outer_join ||
+    table_list->on_expr ||
+    table_list->join_using_fields
+  ) {
+    DBUG_ASSERT(!(*cond_table_list_ptr));
+    (*cond_table_list_ptr) = table_list;
+    DBUG_PRINT("info",("spider cond_table_list=%p", table_list));
+  }
+  List_iterator_fast<TABLE_LIST> it1(table_list->nested_join->join_list);
+  cur_table_list = it1++;
+  if (cur_table_list->outer_join & JOIN_TYPE_RIGHT)
+  {
+    first = FALSE;
+    prev_table_list = cur_table_list;
+    cur_table_list = it1++;
+  } else if (*cond_table_list_ptr)
+  {
+    first = TRUE;
+    cond_table_list = (*cond_table_list_ptr);
+    (*cond_table_list_ptr) = NULL;
+    if (cond_table_list->outer_join & JOIN_TYPE_LEFT)
+    {
+      if (str)
+      {
+        if (str->reserve(SPIDER_SQL_LEFT_JOIN_LEN + SPIDER_SQL_OPEN_PAREN_LEN))
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        str->q_append(SPIDER_SQL_LEFT_JOIN_STR, SPIDER_SQL_LEFT_JOIN_LEN);
+        str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+      }
+    } else {
+      if (str)
+      {
+        if (str->reserve(SPIDER_SQL_JOIN_LEN + SPIDER_SQL_OPEN_PAREN_LEN))
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        str->q_append(SPIDER_SQL_JOIN_STR, SPIDER_SQL_JOIN_LEN);
+        str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+      }
+    }
+  }
+
+  do {
+    if (cur_table_list->outer_join & JOIN_TYPE_RIGHT)
+    {
+      prev_table_list = cur_table_list;
+    } else {
+      if ((error_num = append_table(spider, fields, str, cur_table_list,
+        used_table_list, current_pos, cond_table_list_ptr, TRUE, first)))
+        DBUG_RETURN(error_num);
+      first = FALSE;
+      if (prev_table_list)
+      {
+        outer_join_backup = prev_table_list->outer_join;
+        prev_table_list->outer_join = JOIN_TYPE_LEFT;
+        if ((error_num = append_table(spider, fields, str, prev_table_list,
+          used_table_list, current_pos, cond_table_list_ptr, TRUE, FALSE)))
+        {
+          prev_table_list->outer_join = outer_join_backup;
+          DBUG_RETURN(error_num);
+        }
+        prev_table_list->outer_join = outer_join_backup;
+        prev_table_list = NULL;
+      }
+    }
+  } while ((cur_table_list = it1++));
+
+  if (cond_table_list)
+  {
+    if (str)
+    {
+      if (str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN))
+      {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+      str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+        SPIDER_SQL_CLOSE_PAREN_LEN);
+
+      List<String> *join_using_fields = cond_table_list->join_using_fields;
+      if (join_using_fields)
+      {
+        if (str->reserve(SPIDER_SQL_USING_LEN + SPIDER_SQL_OPEN_PAREN_LEN))
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        str->q_append(SPIDER_SQL_USING_STR, SPIDER_SQL_USING_LEN);
+        str->q_append(SPIDER_SQL_OPEN_PAREN_STR,
+          SPIDER_SQL_OPEN_PAREN_LEN);
+        List_iterator_fast<String> it2(*join_using_fields);
+        String *ptr;
+        while ((ptr = it2++))
+        {
+          if (str->reserve(ptr->length() + SPIDER_SQL_COMMA_LEN))
+          {
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          }
+          str->q_append(ptr->ptr(), ptr->length());
+          str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+        }
+        str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+        if (str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN))
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+          SPIDER_SQL_CLOSE_PAREN_LEN);
+      }
+    }
+
+    Item *on_expr = cond_table_list->on_expr;
+    if (on_expr)
+    {
+      if (str)
+      {
+        if (str->reserve(SPIDER_SQL_ON_LEN))
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        str->q_append(SPIDER_SQL_ON_STR, SPIDER_SQL_ON_LEN);
+      }
+      if ((error_num = spider_db_print_item_type(on_expr, NULL,
+        spider, str, NULL, 0, dbton_id, TRUE, fields)))
+      {
+        DBUG_RETURN(error_num);
+      }
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_util::append_tables_top_down_check(
+  TABLE_LIST *table_list,
+  TABLE_LIST **used_table_list,
+  uint *current_pos
+) {
+  int error_num;
+  TABLE_LIST *cur_table_list;
+  DBUG_ENTER("spider_db_mbase_util::append_tables_top_down_check");
+  DBUG_PRINT("info",("spider this=%p", this));
+  List_iterator_fast<TABLE_LIST> it1(table_list->nested_join->join_list);
+  while ((cur_table_list = it1++))
+  {
+    if (!cur_table_list->table)
+    {
+      if ((error_num = append_tables_top_down_check(
+        cur_table_list, used_table_list, current_pos)))
+        DBUG_RETURN(error_num);
+    } else {
+      used_table_list[(*current_pos)++] = cur_table_list;
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_util::append_embedding_tables(
+  ha_spider *spider,
+  spider_fields *fields,
+  spider_string *str,
+  TABLE_LIST *table_list,
+  TABLE_LIST **used_table_list,
+  uint *current_pos,
+  TABLE_LIST **cond_table_list_ptr
+) {
+  int error_num;
+  TABLE_LIST *embedding = table_list->embedding;
+  DBUG_ENTER("spider_db_mbase_util::append_embedding_tables");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (embedding)
+  {
+    DBUG_PRINT("info",("spider embedding=%p", embedding));
+    DBUG_PRINT("info",("spider embedding->outer_join=%u",
+      embedding->outer_join));
+    DBUG_PRINT("info",("spider embedding->on_expr=%p",
+      embedding->on_expr));
+    DBUG_PRINT("info",("spider embedding->join_using_fields=%p",
+      embedding->join_using_fields));
+    DBUG_PRINT("info",("spider embedding->table=%p",
+      embedding->table));
+    if ((error_num = append_embedding_tables(spider, fields, str, embedding,
+      used_table_list, current_pos, cond_table_list_ptr)))
+      DBUG_RETURN(error_num);
+  } else {
+    DBUG_PRINT("info",("spider table_list=%p", table_list));
+    DBUG_PRINT("info",("spider table_list->outer_join=%u",
+      table_list->outer_join));
+    DBUG_PRINT("info",("spider table_list->on_expr=%p",
+      table_list->on_expr));
+    DBUG_PRINT("info",("spider table_list->join_using_fields=%p",
+      table_list->join_using_fields));
+    DBUG_PRINT("info",("spider table_list->table=%p",
+      table_list->table));
+    if (table_list->outer_join & JOIN_TYPE_RIGHT)
+    {
+      if ((error_num = append_tables_top_down_check(table_list,
+        used_table_list, current_pos)))
+        DBUG_RETURN(error_num);
+      DBUG_ASSERT(!(*cond_table_list_ptr));
+      (*cond_table_list_ptr) = table_list;
+      DBUG_PRINT("info",("spider cond_table_list=%p", table_list));
+    } else {
+      if ((error_num = append_tables_top_down(spider, fields, str, table_list,
+        used_table_list, current_pos, cond_table_list_ptr)))
+        DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_util::append_from_and_tables(
+  ha_spider *spider,
+  spider_fields *fields,
+  spider_string *str,
+  TABLE_LIST *table_list,
+  uint table_count
+) {
+  int error_num;
+  uint current_pos = 0, roop_count, backup_pos, outer_join_backup;
+  TABLE *table;
+  TABLE_LIST **used_table_list, *prev_table_list = NULL,
+    *cond_table_list = NULL;
+  DBUG_ENTER("spider_db_mbase_util::append_from_and_tables");
+  DBUG_PRINT("info",("spider this=%p", this));
+  used_table_list = (TABLE_LIST **)
+    my_alloca(sizeof(TABLE_LIST *) * table_count);
+  if (!used_table_list)
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+
+  if (str)
+  {
+    if (str->reserve(SPIDER_SQL_FROM_LEN))
+    {
+      my_afree(used_table_list);
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_SQL_FROM_STR, SPIDER_SQL_FROM_LEN);
+  }
+
+  do {
+    table = table_list->table;
+    if (table->const_table)
+      continue;
+
+    for (roop_count = 0; roop_count < current_pos; ++roop_count)
+    {
+      if (used_table_list[roop_count] == table_list)
+        break;
+    }
+    if (roop_count < current_pos)
+      continue;
+
+    if (prev_table_list)
+      current_pos = backup_pos;
+    else
+      backup_pos = current_pos;
+    if ((error_num = append_table(spider, fields, str, table_list, used_table_list,
+      &current_pos, &cond_table_list, FALSE, FALSE)))
+    {
+      my_afree(used_table_list);
+      DBUG_RETURN(error_num);
+    }
+    if (prev_table_list)
+    {
+      outer_join_backup = prev_table_list->outer_join;
+      prev_table_list->outer_join = JOIN_TYPE_LEFT;
+      if ((error_num = append_table(spider, fields, str, prev_table_list,
+        used_table_list, &current_pos, &cond_table_list, FALSE, FALSE)))
+      {
+        prev_table_list->outer_join = outer_join_backup;
+        my_afree(used_table_list);
+        DBUG_RETURN(error_num);
+      }
+      prev_table_list->outer_join = outer_join_backup;
+      prev_table_list = NULL;
+    }
+    if (cond_table_list && (cond_table_list->outer_join & JOIN_TYPE_RIGHT))
+    {
+      prev_table_list = cond_table_list;
+      cond_table_list = NULL;
+      DBUG_PRINT("info",("spider cond_table_list=%p", cond_table_list));
+    }
+  } while ((table_list = table_list->next_local));
+  my_afree(used_table_list);
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_util::reappend_tables(
+  spider_fields *fields,
+  SPIDER_LINK_IDX_CHAIN *link_idx_chain,
+  spider_string *str
+) {
+  int error_num;
+  uint32 length;
+  ha_spider *spider;
+  spider_mbase_share *db_share;
+  spider_mbase_handler *dbton_hdl;
+  SPIDER_TABLE_HOLDER *table_holder;
+  SPIDER_LINK_IDX_HOLDER *link_idx_holder;
+  DBUG_ENTER("spider_db_mbase_util::reappend_tables");
+  DBUG_PRINT("info",("spider this=%p", this));
+  length = str->length();
+  fields->set_pos_to_first_table_on_link_idx_chain(link_idx_chain);
+  fields->set_pos_to_first_table_holder();
+  while ((table_holder = fields->get_next_table_holder()))
+  {
+    link_idx_holder =
+      fields->get_next_table_on_link_idx_chain(link_idx_chain);
+    spider = table_holder->spider;
+    db_share = (spider_mbase_share *)
+      spider->share->dbton_share[dbton_id];
+    if (!db_share->same_db_table_name)
+    {
+      dbton_hdl = (spider_mbase_handler *) spider->dbton_handler[dbton_id];
+      str->length(dbton_hdl->table_name_pos);
+      if ((error_num = db_share->append_table_name_with_adjusting(str,
+        spider->conn_link_idx[link_idx_holder->link_idx])))
+      {
+        DBUG_RETURN(error_num);
+      }
+    }
+  }
+  str->length(length);
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_util::append_where(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_db_mbase_util::append_where");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_WHERE_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_WHERE_STR, SPIDER_SQL_WHERE_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_db_mbase_util::append_having(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_db_mbase_util::append_having");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_HAVING_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_HAVING_STR, SPIDER_SQL_HAVING_LEN);
+  DBUG_RETURN(0);
+}
+#endif
+
+bool spider_db_mbase_util::append_charset_name_before_string()
+{
+  DBUG_ENTER("spider_db_mbase_util::append_charset_name_before_string");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(TRUE);
+}
+
+spider_mbase_share::spider_mbase_share(
+  st_spider_share *share,
+  uint dbton_id,
+  spider_db_mbase_util *spider_db_mbase_utility
+) : spider_db_share(
+  share,
+  dbton_id
+),
+  spider_db_mbase_utility(spider_db_mbase_utility),
+  table_select(NULL),
+  table_select_pos(0),
+  key_select(NULL),
+  key_select_pos(NULL),
+  key_hint(NULL),
+  show_table_status(NULL),
+  show_records(NULL),
+  show_index(NULL),
+  table_names_str(NULL),
+  db_names_str(NULL),
+  db_table_str(NULL),
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  db_table_str_hash_value(NULL),
+#endif
+  table_nm_max_length(0),
+  db_nm_max_length(0),
+  column_name_str(NULL),
+  same_db_table_name(TRUE),
+  first_all_link_idx(-1)
+{
+  DBUG_ENTER("spider_mbase_share::spider_mbase_share");
+  DBUG_PRINT("info",("spider this=%p", this));
+  spider_alloc_calc_mem_init(mem_calc, 71);
+  spider_alloc_calc_mem(spider_current_trx, mem_calc, sizeof(*this));
+  DBUG_VOID_RETURN;
+}
+
+spider_mysql_share::spider_mysql_share(
+  st_spider_share *share
+) : spider_mbase_share(
+  share,
+  spider_db_mysql_utility.dbton_id,
+  &spider_db_mysql_utility
+) {
+  DBUG_ENTER("spider_mysql_share::spider_mysql_share");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+spider_mariadb_share::spider_mariadb_share(
+  st_spider_share *share
+) : spider_mbase_share(
+  share,
+  spider_db_mariadb_utility.dbton_id,
+  &spider_db_mariadb_utility
+) {
+  DBUG_ENTER("spider_mariadb_share::spider_mariadb_share");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_mbase_share::~spider_mbase_share()
+{
+  DBUG_ENTER("spider_mbase_share::~spider_mbase_share");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (table_select)
+    delete [] table_select;
+  if (key_select)
+    delete [] key_select;
+  if (key_hint)
+    delete [] key_hint;
+  free_show_table_status();
+  free_show_records();
+  free_show_index();
+  free_column_name_str();
+  free_table_names_str();
+  if (key_select_pos)
+  {
+    spider_free(spider_current_trx, key_select_pos, MYF(0));
+  }
+  spider_free_mem_calc(spider_current_trx, mem_calc_id, sizeof(*this));
+  DBUG_VOID_RETURN;
+}
+
+spider_mysql_share::~spider_mysql_share()
+{
+  DBUG_ENTER("spider_mysql_share::~spider_mysql_share");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_mariadb_share::~spider_mariadb_share()
+{
+  DBUG_ENTER("spider_mariadb_share::~spider_mariadb_share");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+int spider_mbase_share::init()
+{
+  int error_num;
+  uint roop_count;
+  TABLE_SHARE *table_share = spider_share->table_share;
+  uint keys = table_share ? table_share->keys : 0;
+  DBUG_ENTER("spider_mbase_share::init");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!(key_select_pos = (int *)
+    spider_bulk_alloc_mem(spider_current_trx, 112,
+      __func__, __FILE__, __LINE__, MYF(MY_WME | MY_ZEROFILL),
+      &key_select_pos,
+        sizeof(int) * keys,
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+      &db_table_str_hash_value,
+        sizeof(my_hash_value_type) * spider_share->all_link_count,
+#endif
+      NullS))
+  ) {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+
+  if (keys > 0 &&
+    !(key_hint = new spider_string[keys])
+  ) {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  for (roop_count = 0; roop_count < keys; roop_count++)
+  {
+    key_hint[roop_count].init_calc_mem(189);
+    key_hint[roop_count].set_charset(spider_share->access_charset);
+  }
+  DBUG_PRINT("info",("spider key_hint=%p", key_hint));
+
+  if (
+    !(table_select = new spider_string[1]) ||
+    (keys > 0 &&
+      !(key_select = new spider_string[keys])
+    ) ||
+    (error_num = create_table_names_str()) ||
+    (table_share &&
+      (
+        (error_num = create_column_name_str()) ||
+        (error_num = convert_key_hint_str()) ||
+        (error_num = append_show_table_status()) ||
+        (error_num = append_show_records()) ||
+        (error_num = append_show_index())
+      )
+    )
+  ) {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+
+  table_select->init_calc_mem(96);
+  if (table_share && (error_num = append_table_select()))
+    DBUG_RETURN(error_num);
+
+  for (roop_count = 0; roop_count < keys; roop_count++)
+  {
+    key_select[roop_count].init_calc_mem(97);
+    if ((error_num = append_key_select(roop_count)))
+      DBUG_RETURN(error_num);
+  }
+
+  DBUG_RETURN(error_num);
+}
+
+uint spider_mbase_share::get_column_name_length(
+  uint field_index
+) {
+  DBUG_ENTER("spider_mbase_share::get_column_name_length");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(column_name_str[field_index].length());
+}
+
+int spider_mbase_share::append_column_name(
+  spider_string *str,
+  uint field_index
+) {
+  int error_num;
+  DBUG_ENTER("spider_mbase_share::append_column_name");
+  DBUG_PRINT("info",("spider this=%p", this));
+  error_num = spider_db_mbase_utility->append_name(str,
+    column_name_str[field_index].ptr(), column_name_str[field_index].length());
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_share::append_column_name_with_alias(
+  spider_string *str,
+  uint field_index,
+  const char *alias,
+  uint alias_length
+) {
+  DBUG_ENTER("spider_mbase_share::append_column_name_with_alias");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(
+    alias_length +
+    column_name_str[field_index].length() +
+    /* SPIDER_SQL_NAME_QUOTE_LEN */ 2))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(alias, alias_length);
+  append_column_name(str, field_index);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_share::append_table_name(
+  spider_string *str,
+  int all_link_idx
+) {
+  const char *db_nm = db_names_str[all_link_idx].ptr();
+  uint db_nm_len = db_names_str[all_link_idx].length();
+  const char *table_nm = table_names_str[all_link_idx].ptr();
+  uint table_nm_len = table_names_str[all_link_idx].length();
+  DBUG_ENTER("spider_mbase_share::append_table_name");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(db_nm_len + SPIDER_SQL_DOT_LEN + table_nm_len +
+    /* SPIDER_SQL_NAME_QUOTE_LEN */ 4))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  spider_db_mbase_utility->append_name(str, db_nm, db_nm_len);
+  str->q_append(SPIDER_SQL_DOT_STR, SPIDER_SQL_DOT_LEN);
+  spider_db_mbase_utility->append_name(str, table_nm, table_nm_len);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_share::append_table_name_with_adjusting(
+  spider_string *str,
+  int all_link_idx
+) {
+  const char *db_nm = db_names_str[all_link_idx].ptr();
+  uint db_nm_len = db_names_str[all_link_idx].length();
+  uint db_nm_max_len = db_nm_max_length;
+  const char *table_nm = table_names_str[all_link_idx].ptr();
+  uint table_nm_len = table_names_str[all_link_idx].length();
+  uint table_nm_max_len = table_nm_max_length;
+  DBUG_ENTER("spider_mbase_share::append_table_name_with_adjusting");
+  DBUG_PRINT("info",("spider this=%p", this));
+  spider_db_mbase_utility->append_name(str, db_nm, db_nm_len);
+  str->q_append(SPIDER_SQL_DOT_STR, SPIDER_SQL_DOT_LEN);
+  spider_db_mbase_utility->append_name(str, table_nm, table_nm_len);
+  uint length =
+    db_nm_max_len - db_nm_len +
+    table_nm_max_len - table_nm_len;
+  memset((char *) str->ptr() + str->length(), ' ', length);
+  str->length(str->length() + length);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_share::append_from_with_adjusted_table_name(
+  spider_string *str,
+  int *table_name_pos
+) {
+  const char *db_nm = db_names_str[0].ptr();
+  uint db_nm_len = db_names_str[0].length();
+  uint db_nm_max_len = db_nm_max_length;
+  const char *table_nm = table_names_str[0].ptr();
+  uint table_nm_len = table_names_str[0].length();
+  uint table_nm_max_len = table_nm_max_length;
+  DBUG_ENTER("spider_mbase_share::append_from_with_adjusted_table_name");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_FROM_LEN + db_nm_max_length +
+    SPIDER_SQL_DOT_LEN + table_nm_max_length +
+    /* SPIDER_SQL_NAME_QUOTE_LEN */ 4))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str->q_append(SPIDER_SQL_FROM_STR, SPIDER_SQL_FROM_LEN);
+  *table_name_pos = str->length();
+  spider_db_mbase_utility->append_name(str, db_nm, db_nm_len);
+  str->q_append(SPIDER_SQL_DOT_STR, SPIDER_SQL_DOT_LEN);
+  spider_db_mbase_utility->append_name(str, table_nm, table_nm_len);
+  uint length =
+    db_nm_max_len - db_nm_len +
+    table_nm_max_len - table_nm_len;
+  memset((char *) str->ptr() + str->length(), ' ', length);
+  str->length(str->length() + length);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_share::create_table_names_str()
+{
+  int error_num, roop_count;
+  uint table_nm_len, db_nm_len;
+  spider_string *str, *first_tbl_nm_str, *first_db_nm_str, *first_db_tbl_str;
+  char *first_tbl_nm, *first_db_nm;
+  DBUG_ENTER("spider_mbase_share::create_table_names_str");
+  table_names_str = NULL;
+  db_names_str = NULL;
+  db_table_str = NULL;
+  if (
+    !(table_names_str = new spider_string[spider_share->all_link_count]) ||
+    !(db_names_str = new spider_string[spider_share->all_link_count]) ||
+    !(db_table_str = new spider_string[spider_share->all_link_count])
+  ) {
+    error_num = HA_ERR_OUT_OF_MEM;
+    goto error;
+  }
+
+  same_db_table_name = TRUE;
+  first_tbl_nm = spider_share->tgt_table_names[0];
+  first_db_nm = spider_share->tgt_dbs[0];
+  table_nm_len = spider_share->tgt_table_names_lengths[0];
+  db_nm_len = spider_share->tgt_dbs_lengths[0];
+  first_tbl_nm_str = &table_names_str[0];
+  first_db_nm_str = &db_names_str[0];
+  first_db_tbl_str = &db_table_str[0];
+  for (roop_count = 0; roop_count < (int) spider_share->all_link_count;
+    roop_count++)
+  {
+    table_names_str[roop_count].init_calc_mem(86);
+    db_names_str[roop_count].init_calc_mem(87);
+    db_table_str[roop_count].init_calc_mem(88);
+    if (spider_share->sql_dbton_ids[roop_count] != dbton_id)
+      continue;
+    if (first_all_link_idx == -1)
+      first_all_link_idx = roop_count;
+
+    str = &table_names_str[roop_count];
+    if (
+      roop_count != 0 &&
+      same_db_table_name &&
+      spider_share->tgt_table_names_lengths[roop_count] == table_nm_len &&
+      !memcmp(first_tbl_nm, spider_share->tgt_table_names[roop_count],
+        table_nm_len)
+    ) {
+      if (str->copy(*first_tbl_nm_str))
+      {
+        error_num = HA_ERR_OUT_OF_MEM;
+        goto error;
+      }
+    } else {
+      str->set_charset(spider_share->access_charset);
+      if ((error_num = spider_db_append_name_with_quote_str(str,
+        spider_share->tgt_table_names[roop_count], dbton_id)))
+        goto error;
+      if (roop_count)
+      {
+        same_db_table_name = FALSE;
+        DBUG_PRINT("info", ("spider found different table name %s",
+          spider_share->tgt_table_names[roop_count]));
+        if (str->length() > table_nm_max_length)
+          table_nm_max_length = str->length();
+      } else
+        table_nm_max_length = str->length();
+    }
+
+    str = &db_names_str[roop_count];
+    if (
+      roop_count != 0 &&
+      same_db_table_name &&
+      spider_share->tgt_dbs_lengths[roop_count] == db_nm_len &&
+      !memcmp(first_db_nm, spider_share->tgt_dbs[roop_count],
+        db_nm_len)
+    ) {
+      if (str->copy(*first_db_nm_str))
+      {
+        error_num = HA_ERR_OUT_OF_MEM;
+        goto error;
+      }
+    } else {
+      str->set_charset(spider_share->access_charset);
+      if ((error_num = spider_db_append_name_with_quote_str(str,
+        spider_share->tgt_dbs[roop_count], dbton_id)))
+        goto error;
+      if (roop_count)
+      {
+        same_db_table_name = FALSE;
+        DBUG_PRINT("info", ("spider found different db name %s",
+          spider_share->tgt_dbs[roop_count]));
+        if (str->length() > db_nm_max_length)
+          db_nm_max_length = str->length();
+      } else
+        db_nm_max_length = str->length();
+    }
+
+    str = &db_table_str[roop_count];
+    if (
+      roop_count != 0 &&
+      same_db_table_name
+    ) {
+      if (str->copy(*first_db_tbl_str))
+      {
+        error_num = HA_ERR_OUT_OF_MEM;
+        goto error;
+      }
+    } else {
+      str->set_charset(spider_share->access_charset);
+      if ((error_num = append_table_name(str, roop_count)))
+        goto error;
+    }
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+    db_table_str_hash_value[roop_count] = my_calc_hash(
+      &spider_open_connections, (uchar*) str->ptr(), str->length());
+#endif
+  }
+  DBUG_RETURN(0);
+
+error:
+  if (db_table_str)
+  {
+    delete [] db_table_str;
+    db_table_str = NULL;
+  }
+  if (db_names_str)
+  {
+    delete [] db_names_str;
+    db_names_str = NULL;
+  }
+  if (table_names_str)
+  {
+    delete [] table_names_str;
+    table_names_str = NULL;
+  }
+  DBUG_RETURN(error_num);
+}
+
+void spider_mbase_share::free_table_names_str()
+{
+  DBUG_ENTER("spider_mbase_share::free_table_names_str");
+  if (db_table_str)
+  {
+    delete [] db_table_str;
+    db_table_str = NULL;
+  }
+  if (db_names_str)
+  {
+    delete [] db_names_str;
+    db_names_str = NULL;
+  }
+  if (table_names_str)
+  {
+    delete [] table_names_str;
+    table_names_str = NULL;
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_mbase_share::create_column_name_str()
+{
+  spider_string *str;
+  int error_num;
+  Field **field;
+  TABLE_SHARE *table_share = spider_share->table_share;
+  DBUG_ENTER("spider_mbase_share::create_column_name_str");
+  if (
+    table_share->fields &&
+    !(column_name_str = new spider_string[table_share->fields])
+  )
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  for (field = table_share->field, str = column_name_str;
+   *field; field++, str++)
+  {
+    str->init_calc_mem(89);
+    str->set_charset(spider_share->access_charset);
+    if ((error_num = spider_db_append_name_with_quote_str(str,
+      (*field)->field_name, dbton_id)))
+      goto error;
+  }
+  DBUG_RETURN(0);
+
+error:
+  if (column_name_str)
+  {
+    delete [] column_name_str;
+    column_name_str = NULL;
+  }
+  DBUG_RETURN(error_num);
+}
+
+void spider_mbase_share::free_column_name_str()
+{
+  DBUG_ENTER("spider_mbase_share::free_column_name_str");
+  if (column_name_str)
+  {
+    delete [] column_name_str;
+    column_name_str = NULL;
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_mbase_share::convert_key_hint_str()
+{
+  spider_string *tmp_key_hint;
+  int roop_count;
+  TABLE_SHARE *table_share = spider_share->table_share;
+  DBUG_ENTER("spider_mbase_share::convert_key_hint_str");
+  if (spider_share->access_charset->cset != system_charset_info->cset)
+  {
+    /* need conversion */
+    for (roop_count = 0, tmp_key_hint = key_hint;
+      roop_count < (int) table_share->keys; roop_count++, tmp_key_hint++)
+    {
+      tmp_key_hint->length(0);
+      if (tmp_key_hint->append(spider_share->key_hint->ptr(),
+        spider_share->key_hint->length(), system_charset_info))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+  } else {
+    for (roop_count = 0, tmp_key_hint = key_hint;
+      roop_count < (int) table_share->keys; roop_count++, tmp_key_hint++)
+    {
+      if (tmp_key_hint->copy(spider_share->key_hint[roop_count]))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_share::append_show_table_status()
+{
+  int roop_count;
+  spider_string *str;
+  DBUG_ENTER("spider_mysql_append_show_table_status");
+  if (!(show_table_status =
+    new spider_string[2 * spider_share->all_link_count]))
+    goto error;
+
+  for (roop_count = 0; roop_count < (int) spider_share->all_link_count;
+    roop_count++)
+  {
+    show_table_status[0 + (2 * roop_count)].init_calc_mem(90);
+    show_table_status[1 + (2 * roop_count)].init_calc_mem(91);
+    if (spider_share->sql_dbton_ids[roop_count] != dbton_id)
+      continue;
+
+    if (
+      show_table_status[0 + (2 * roop_count)].reserve(
+        SPIDER_SQL_SHOW_TABLE_STATUS_LEN +
+        db_names_str[roop_count].length() +
+        SPIDER_SQL_LIKE_LEN + table_names_str[roop_count].length() +
+        ((SPIDER_SQL_NAME_QUOTE_LEN) * 2) +
+        ((SPIDER_SQL_VALUE_QUOTE_LEN) * 2)) ||
+      show_table_status[1 + (2 * roop_count)].reserve(
+        SPIDER_SQL_SELECT_TABLES_STATUS_LEN +
+        db_names_str[roop_count].length() +
+        SPIDER_SQL_AND_LEN + SPIDER_SQL_TABLE_NAME_LEN + SPIDER_SQL_EQUAL_LEN +
+        table_names_str[roop_count].length() +
+        ((SPIDER_SQL_VALUE_QUOTE_LEN) * 4))
+    )
+      goto error;
+    str = &show_table_status[0 + (2 * roop_count)];
+    str->q_append(
+      SPIDER_SQL_SHOW_TABLE_STATUS_STR, SPIDER_SQL_SHOW_TABLE_STATUS_LEN);
+    str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+    str->q_append(db_names_str[roop_count].ptr(),
+      db_names_str[roop_count].length());
+    str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+    str->q_append(SPIDER_SQL_LIKE_STR, SPIDER_SQL_LIKE_LEN);
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    str->q_append(table_names_str[roop_count].ptr(),
+      table_names_str[roop_count].length());
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    str = &show_table_status[1 + (2 * roop_count)];
+    str->q_append(
+      SPIDER_SQL_SELECT_TABLES_STATUS_STR,
+      SPIDER_SQL_SELECT_TABLES_STATUS_LEN);
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    str->q_append(db_names_str[roop_count].ptr(),
+      db_names_str[roop_count].length());
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    str->q_append(SPIDER_SQL_AND_STR, SPIDER_SQL_AND_LEN);
+    str->q_append(SPIDER_SQL_TABLE_NAME_STR, SPIDER_SQL_TABLE_NAME_LEN);
+    str->q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    str->q_append(table_names_str[roop_count].ptr(),
+      table_names_str[roop_count].length());
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+  }
+  DBUG_RETURN(0);
+
+error:
+  if (show_table_status)
+  {
+    delete [] show_table_status;
+    show_table_status = NULL;
+  }
+  DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+}
+
+void spider_mbase_share::free_show_table_status()
+{
+  DBUG_ENTER("spider_mysql_free_show_table_status");
+  if (show_table_status)
+  {
+    delete [] show_table_status;
+    show_table_status = NULL;
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_mbase_share::append_show_records()
+{
+  int roop_count;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_share::append_show_records");
+  if (!(show_records = new spider_string[spider_share->all_link_count]))
+    goto error;
+
+  for (roop_count = 0; roop_count < (int) spider_share->all_link_count;
+    roop_count++)
+  {
+    show_records[roop_count].init_calc_mem(92);
+    if (spider_share->sql_dbton_ids[roop_count] != dbton_id)
+      continue;
+
+    if (
+      show_records[roop_count].reserve(
+        SPIDER_SQL_SHOW_RECORDS_LEN +
+        db_names_str[roop_count].length() +
+        SPIDER_SQL_DOT_LEN +
+        table_names_str[roop_count].length() +
+        /* SPIDER_SQL_NAME_QUOTE_LEN */ 4)
+    )
+      goto error;
+    str = &show_records[roop_count];
+    str->q_append(SPIDER_SQL_SHOW_RECORDS_STR, SPIDER_SQL_SHOW_RECORDS_LEN);
+    append_table_name(str, roop_count);
+  }
+  DBUG_RETURN(0);
+
+error:
+  if (show_records)
+  {
+    delete [] show_records;
+    show_records = NULL;
+  }
+  DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+}
+
+void spider_mbase_share::free_show_records()
+{
+  DBUG_ENTER("spider_mbase_share::free_show_records");
+  if (show_records)
+  {
+    delete [] show_records;
+    show_records = NULL;
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_mbase_share::append_show_index()
+{
+  int roop_count;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_share::append_show_index");
+  if (!(show_index = new spider_string[2 * spider_share->all_link_count]))
+    goto error;
+
+  for (roop_count = 0; roop_count < (int) spider_share->all_link_count;
+    roop_count++)
+  {
+    show_index[0 + (2 * roop_count)].init_calc_mem(93);
+    show_index[1 + (2 * roop_count)].init_calc_mem(94);
+    if (spider_share->sql_dbton_ids[roop_count] != dbton_id)
+      continue;
+
+    if (
+      show_index[0 + (2 * roop_count)].reserve(
+        SPIDER_SQL_SHOW_INDEX_LEN + db_names_str[roop_count].length() +
+        SPIDER_SQL_DOT_LEN +
+        table_names_str[roop_count].length() +
+        /* SPIDER_SQL_NAME_QUOTE_LEN */ 4) ||
+      show_index[1 + (2 * roop_count)].reserve(
+        SPIDER_SQL_SELECT_STATISTICS_LEN +
+        db_names_str[roop_count].length() +
+        SPIDER_SQL_AND_LEN + SPIDER_SQL_TABLE_NAME_LEN + SPIDER_SQL_EQUAL_LEN +
+        table_names_str[roop_count].length() +
+        ((SPIDER_SQL_VALUE_QUOTE_LEN) * 4) +
+        SPIDER_SQL_GROUP_LEN + SPIDER_SQL_COLUMN_NAME_LEN)
+    )
+      goto error;
+    str = &show_index[0 + (2 * roop_count)];
+    str->q_append(
+      SPIDER_SQL_SHOW_INDEX_STR, SPIDER_SQL_SHOW_INDEX_LEN);
+    append_table_name(str, roop_count);
+    str = &show_index[1 + (2 * roop_count)];
+    str->q_append(
+      SPIDER_SQL_SELECT_STATISTICS_STR, SPIDER_SQL_SELECT_STATISTICS_LEN);
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    str->q_append(db_names_str[roop_count].ptr(),
+      db_names_str[roop_count].length());
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    str->q_append(SPIDER_SQL_AND_STR, SPIDER_SQL_AND_LEN);
+    str->q_append(SPIDER_SQL_TABLE_NAME_STR, SPIDER_SQL_TABLE_NAME_LEN);
+    str->q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    str->q_append(table_names_str[roop_count].ptr(),
+      table_names_str[roop_count].length());
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    str->q_append(SPIDER_SQL_GROUP_STR, SPIDER_SQL_GROUP_LEN);
+    str->q_append(SPIDER_SQL_COLUMN_NAME_STR, SPIDER_SQL_COLUMN_NAME_LEN);
+  }
+  DBUG_RETURN(0);
+
+error:
+  if (show_index)
+  {
+    delete [] show_index;
+    show_index = NULL;
+  }
+  DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+}
+
+void spider_mbase_share::free_show_index()
+{
+  DBUG_ENTER("spider_mbase_share::free_show_index");
+  if (show_index)
+  {
+    delete [] show_index;
+    show_index = NULL;
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_mbase_share::append_table_select()
+{
+  Field **field;
+  uint field_length;
+  spider_string *str = table_select;
+  TABLE_SHARE *table_share = spider_share->table_share;
+  DBUG_ENTER("spider_mbase_share::append_table_select");
+
+  if (!*table_share->field)
+    DBUG_RETURN(0);
+
+  for (field = table_share->field; *field; field++)
+  {
+    field_length = column_name_str[(*field)->field_index].length();
+    if (str->reserve(field_length +
+      /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_COMMA_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    append_column_name(str, (*field)->field_index);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+  str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  DBUG_RETURN(append_from_with_adjusted_table_name(str, &table_select_pos));
+}
+
+int spider_mbase_share::append_key_select(
+  uint idx
+) {
+  KEY_PART_INFO *key_part;
+  Field *field;
+  uint part_num;
+  uint field_length;
+  spider_string *str = &key_select[idx];
+  TABLE_SHARE *table_share = spider_share->table_share;
+  const KEY *key_info = &table_share->key_info[idx];
+  DBUG_ENTER("spider_mbase_share::append_key_select");
+
+  if (!spider_user_defined_key_parts(key_info))
+    DBUG_RETURN(0);
+
+  for (key_part = key_info->key_part, part_num = 0;
+    part_num < spider_user_defined_key_parts(key_info); key_part++, part_num++)
+  {
+    field = key_part->field;
+    field_length = column_name_str[field->field_index].length();
+    if (str->reserve(field_length +
+      /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_COMMA_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    append_column_name(str, field->field_index);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+  str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  DBUG_RETURN(append_from_with_adjusted_table_name(str, &key_select_pos[idx]));
+}
+
+bool spider_mbase_share::need_change_db_table_name()
+{
+  DBUG_ENTER("spider_mbase_share::need_change_db_table_name");
+  DBUG_RETURN(!same_db_table_name);
+}
+
+#ifdef SPIDER_HAS_DISCOVER_TABLE_STRUCTURE
+int spider_mbase_share::discover_table_structure(
+  SPIDER_TRX *trx,
+  SPIDER_SHARE *spider_share,
+  spider_string *str
+) {
+  int roop_count, error_num = HA_ERR_WRONG_COMMAND;
+  char sql_buf[MAX_FIELD_WIDTH];
+  spider_string sql_str(sql_buf, sizeof(sql_buf), system_charset_info);
+  uint strlen = str->length();
+  DBUG_ENTER("spider_mbase_share::discover_table_structure");
+  DBUG_PRINT("info",("spider this=%p", this));
+  sql_str.init_calc_mem(228);
+  for (roop_count = 0; roop_count < (int) spider_share->all_link_count;
+    roop_count++)
+  {
+    if (spider_share->sql_dbton_ids[roop_count] != dbton_id)
+    {
+      DBUG_PRINT("info",("spider spider_share->sql_dbton_ids[%d]=%u",
+        roop_count, spider_share->sql_dbton_ids[roop_count]));
+      DBUG_PRINT("info",("spider dbton_id=%u", dbton_id));
+      continue;
+    }
+
+    str->length(strlen);
+    sql_str.length(0);
+    if (sql_str.reserve(
+      SPIDER_SQL_SELECT_COLUMNS_LEN + db_names_str[roop_count].length() +
+      SPIDER_SQL_AND_LEN + SPIDER_SQL_TABLE_NAME_LEN + SPIDER_SQL_EQUAL_LEN +
+      table_names_str[roop_count].length() + SPIDER_SQL_ORDER_LEN +
+      SPIDER_SQL_ORDINAL_POSITION_LEN +
+      /* SPIDER_SQL_VALUE_QUOTE_LEN */ 8 +
+      SPIDER_SQL_SEMICOLON_LEN +
+      SPIDER_SQL_SHOW_INDEX_LEN + db_names_str[roop_count].length() +
+      SPIDER_SQL_DOT_LEN + table_names_str[roop_count].length() +
+      /* SPIDER_SQL_NAME_QUOTE_LEN */ 4 +
+      SPIDER_SQL_SEMICOLON_LEN +
+      SPIDER_SQL_SHOW_TABLE_STATUS_LEN + db_names_str[roop_count].length() +
+      SPIDER_SQL_LIKE_LEN + table_names_str[roop_count].length() +
+      /* SPIDER_SQL_NAME_QUOTE_LEN */ 4
+    )) {
+      DBUG_PRINT("info",("spider alloc sql_str error"));
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    sql_str.q_append(SPIDER_SQL_SELECT_COLUMNS_STR,
+      SPIDER_SQL_SELECT_COLUMNS_LEN);
+    sql_str.q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    sql_str.q_append(db_names_str[roop_count].ptr(),
+      db_names_str[roop_count].length());
+    sql_str.q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    sql_str.q_append(SPIDER_SQL_AND_STR, SPIDER_SQL_AND_LEN);
+    sql_str.q_append(SPIDER_SQL_TABLE_NAME_STR, SPIDER_SQL_TABLE_NAME_LEN);
+    sql_str.q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+    sql_str.q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    sql_str.q_append(table_names_str[roop_count].ptr(),
+      table_names_str[roop_count].length());
+    sql_str.q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    sql_str.q_append(SPIDER_SQL_ORDER_STR, SPIDER_SQL_ORDER_LEN);
+    sql_str.q_append(SPIDER_SQL_ORDINAL_POSITION_STR,
+      SPIDER_SQL_ORDINAL_POSITION_LEN);
+    sql_str.q_append(SPIDER_SQL_SEMICOLON_STR, SPIDER_SQL_SEMICOLON_LEN);
+    sql_str.q_append(SPIDER_SQL_SHOW_INDEX_STR, SPIDER_SQL_SHOW_INDEX_LEN);
+    append_table_name(&sql_str, roop_count);
+    sql_str.q_append(SPIDER_SQL_SEMICOLON_STR, SPIDER_SQL_SEMICOLON_LEN);
+    sql_str.q_append(
+      SPIDER_SQL_SHOW_TABLE_STATUS_STR, SPIDER_SQL_SHOW_TABLE_STATUS_LEN);
+    sql_str.q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+    sql_str.q_append(db_names_str[roop_count].ptr(),
+      db_names_str[roop_count].length());
+    sql_str.q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+    sql_str.q_append(SPIDER_SQL_LIKE_STR, SPIDER_SQL_LIKE_LEN);
+    sql_str.q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    sql_str.q_append(table_names_str[roop_count].ptr(),
+      table_names_str[roop_count].length());
+    sql_str.q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+
+    SPIDER_CONN *conn;
+    int need_mon;
+    if (!(conn = spider_get_conn(
+      spider_share, 0, spider_share->conn_keys[roop_count], trx, NULL, FALSE,
+      FALSE, SPIDER_CONN_KIND_MYSQL, &error_num))
+    ) {
+      DBUG_RETURN(error_num);
+    }
+    pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+    pthread_mutex_lock(&conn->mta_conn_mutex);
+    SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    conn->need_mon = &need_mon;
+    DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = TRUE;
+    conn->mta_conn_mutex_unlock_later = TRUE;
+    if (!conn->disable_reconnect)
+    {
+      ha_spider tmp_spider;
+      SPIDER_WIDE_HANDLER wide_handler;
+      int need_mon = 0;
+      uint tmp_conn_link_idx = 0;
+      tmp_spider.wide_handler = &wide_handler;
+      wide_handler.trx = trx;
+      tmp_spider.share = spider_share;
+      tmp_spider.need_mons = &need_mon;
+      tmp_spider.conn_link_idx = &tmp_conn_link_idx;
+      if ((error_num = spider_db_ping(&tmp_spider, conn, 0)))
+      {
+        DBUG_PRINT("info",("spider spider_db_ping error"));
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        continue;
+      }
+    }
+    spider_conn_set_timeout_from_share(conn, roop_count, trx->thd,
+      spider_share);
+    if (
+      (error_num = spider_db_set_names_internal(trx, spider_share, conn,
+        roop_count, &need_mon)) ||
+      (
+        spider_db_query(
+          conn,
+          sql_str.ptr(),
+          sql_str.length(),
+          -1,
+          &need_mon) &&
+        (error_num = spider_db_errorno(conn))
+      )
+    ) {
+      DBUG_PRINT("info",("spider spider_get_trx error"));
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      continue;
+    }
+    st_spider_db_request_key request_key;
+    request_key.spider_thread_id = trx->spider_thread_id;
+    request_key.query_id = trx->thd->query_id;
+    request_key.handler = NULL;
+    request_key.request_id = 1;
+    request_key.next = NULL;
+    spider_db_result *res;
+    /* get column list */
+    if (!(res = conn->db_conn->store_result(NULL, &request_key, &error_num)))
+    {
+      if (error_num || (error_num = spider_db_errorno(conn)))
+      {
+        DBUG_PRINT("info",("spider column store error"));
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        continue;
+      }
+      /* no record */
+      DBUG_PRINT("info",("spider column no record error"));
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      continue;
+    }
+    if ((error_num = res->fetch_columns_for_discover_table_structure(str,
+      spider_share->access_charset)))
+    {
+      DBUG_PRINT("info",("spider column fetch error"));
+      res->free_result();
+      delete res;
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      my_printf_error(ER_SPIDER_REMOTE_TABLE_NOT_FOUND_NUM,
+        ER_SPIDER_REMOTE_TABLE_NOT_FOUND_STR, MYF(0),
+        db_names_str[roop_count].ptr(),
+        table_names_str[roop_count].ptr());
+      error_num = ER_SPIDER_REMOTE_TABLE_NOT_FOUND_NUM;
+      continue;
+    }
+    res->free_result();
+    delete res;
+    if (conn->db_conn->next_result())
+    {
+      DBUG_PRINT("info",("spider single result error"));
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      continue;
+    }
+    /* get index list */
+    if (!(res = conn->db_conn->store_result(NULL, &request_key, &error_num)))
+    {
+      if (error_num || (error_num = spider_db_errorno(conn)))
+      {
+        DBUG_PRINT("info",("spider index store error"));
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        continue;
+      }
+      /* no record */
+      DBUG_PRINT("info",("spider index no record error"));
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      continue;
+    }
+    if ((error_num = res->fetch_index_for_discover_table_structure(str,
+      spider_share->access_charset)))
+    {
+      DBUG_PRINT("info",("spider index fetch error"));
+      res->free_result();
+      delete res;
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      continue;
+    }
+    res->free_result();
+    delete res;
+    if (conn->db_conn->next_result())
+    {
+      DBUG_PRINT("info",("spider dual result error"));
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      continue;
+    }
+    /* get table info */
+    if (!(res = conn->db_conn->store_result(NULL, &request_key, &error_num)))
+    {
+      if (error_num || (error_num = spider_db_errorno(conn)))
+      {
+        DBUG_PRINT("info",("spider table store error"));
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        continue;
+      }
+      /* no record */
+      DBUG_PRINT("info",("spider table no record error"));
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      continue;
+    }
+    if ((error_num = res->fetch_table_for_discover_table_structure(str,
+      spider_share, spider_share->access_charset)))
+    {
+      DBUG_PRINT("info",("spider table fetch error"));
+      res->free_result();
+      delete res;
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      continue;
+    }
+    res->free_result();
+    delete res;
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+    if (!error_num)
+      break;
+  }
+  DBUG_RETURN(error_num);
+}
+#endif
+
+#ifdef HA_HAS_CHECKSUM_EXTENDED
+bool spider_mbase_share::checksum_support()
+{
+  DBUG_ENTER("spider_mbase_share::checksum_support");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(TRUE);
+}
+#endif
+
+spider_mbase_handler::spider_mbase_handler(
+  ha_spider *spider,
+  spider_mbase_share *db_share,
+  spider_db_mbase_util *spider_db_mbase_utility
+) : spider_db_handler(
+  spider,
+  db_share
+),
+  spider_db_mbase_utility(spider_db_mbase_utility),
+  where_pos(0),
+  order_pos(0),
+  limit_pos(0),
+  table_name_pos(0),
+  ha_read_pos(0),
+  ha_next_pos(0),
+  ha_where_pos(0),
+  ha_limit_pos(0),
+  ha_table_name_pos(0),
+  insert_pos(0),
+  insert_table_name_pos(0),
+  upd_tmp_tbl(NULL),
+  tmp_sql_pos1(0),
+  tmp_sql_pos2(0),
+  tmp_sql_pos3(0),
+  tmp_sql_pos4(0),
+  tmp_sql_pos5(0),
+  reading_from_bulk_tmp_table(FALSE),
+  union_table_name_pos_first(NULL),
+  union_table_name_pos_current(NULL),
+  mysql_share(db_share),
+  link_for_hash(NULL)
+{
+  DBUG_ENTER("spider_mbase_handler::spider_mbase_handler");
+  DBUG_PRINT("info",("spider this=%p", this));
+  spider_alloc_calc_mem_init(mem_calc, 183);
+  spider_alloc_calc_mem(spider_current_trx, mem_calc, sizeof(*this));
+  DBUG_VOID_RETURN;
+}
+
+spider_mysql_handler::spider_mysql_handler(
+  ha_spider *spider,
+  spider_mbase_share *db_share
+) : spider_mbase_handler(
+  spider,
+  db_share,
+  &spider_db_mysql_utility
+) {
+  DBUG_ENTER("spider_mysql_handler::spider_mysql_handler");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_mariadb_handler::spider_mariadb_handler(
+  ha_spider *spider,
+  spider_mbase_share *db_share
+) : spider_mbase_handler(
+  spider,
+  db_share,
+  &spider_db_mariadb_utility
+) {
+  DBUG_ENTER("spider_mariadb_handler::spider_mariadb_handler");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_mbase_handler::~spider_mbase_handler()
+{
+  DBUG_ENTER("spider_mbase_handler::~spider_mbase_handler");
+  DBUG_PRINT("info",("spider this=%p", this));
+  while (union_table_name_pos_first)
+  {
+    SPIDER_INT_HLD *tmp_pos = union_table_name_pos_first;
+    union_table_name_pos_first = tmp_pos->next;
+    spider_free(spider_current_trx, tmp_pos, MYF(0));
+  }
+  if (link_for_hash)
+  {
+    spider_free(spider_current_trx, link_for_hash, MYF(0));
+  }
+  spider_free_mem_calc(spider_current_trx, mem_calc_id, sizeof(*this));
+  DBUG_VOID_RETURN;
+}
+
+spider_mysql_handler::~spider_mysql_handler()
+{
+  DBUG_ENTER("spider_mysql_handler::~spider_mysql_handler");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_mariadb_handler::~spider_mariadb_handler()
+{
+  DBUG_ENTER("spider_mariadb_handler::~spider_mariadb_handler");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+int spider_mbase_handler::init()
+{
+  uint roop_count;
+  THD *thd = spider->wide_handler->trx->thd;
+  st_spider_share *share = spider->share;
+  int init_sql_alloc_size =
+    spider_param_init_sql_alloc_size(thd, share->init_sql_alloc_size);
+  TABLE *table = spider->get_table();
+  DBUG_ENTER("spider_mbase_handler::init");
+  DBUG_PRINT("info",("spider this=%p", this));
+  sql.init_calc_mem(59);
+  sql_part.init_calc_mem(60);
+  sql_part2.init_calc_mem(61);
+  ha_sql.init_calc_mem(62);
+  insert_sql.init_calc_mem(64);
+  update_sql.init_calc_mem(65);
+  tmp_sql.init_calc_mem(66);
+  dup_update_sql.init_calc_mem(166);
+  if (
+    (sql.real_alloc(init_sql_alloc_size)) ||
+    (insert_sql.real_alloc(init_sql_alloc_size)) ||
+    (update_sql.real_alloc(init_sql_alloc_size)) ||
+    (tmp_sql.real_alloc(init_sql_alloc_size))
+  ) {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  sql.set_charset(share->access_charset);
+  sql_part.set_charset(share->access_charset);
+  sql_part2.set_charset(share->access_charset);
+  ha_sql.set_charset(share->access_charset);
+  insert_sql.set_charset(share->access_charset);
+  update_sql.set_charset(share->access_charset);
+  tmp_sql.set_charset(share->access_charset);
+  dup_update_sql.set_charset(share->access_charset);
+  upd_tmp_tbl_prm.init();
+  upd_tmp_tbl_prm.field_count = 1;
+  if (!(link_for_hash = (SPIDER_LINK_FOR_HASH *)
+    spider_bulk_alloc_mem(spider_current_trx, 141,
+      __func__, __FILE__, __LINE__, MYF(MY_WME | MY_ZEROFILL),
+      &link_for_hash,
+        sizeof(SPIDER_LINK_FOR_HASH) * share->link_count,
+      &minimum_select_bitmap,
+        table ? sizeof(uchar) * no_bytes_in_map(table->read_set) : 0,
+      NullS))
+  ) {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  for (roop_count = 0; roop_count < share->link_count; roop_count++)
+  {
+    link_for_hash[roop_count].spider = spider;
+    link_for_hash[roop_count].link_idx = roop_count;
+    link_for_hash[roop_count].db_table_str =
+      &mysql_share->db_table_str[roop_count];
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+    link_for_hash[roop_count].db_table_str_hash_value =
+      mysql_share->db_table_str_hash_value[roop_count];
+#endif
+  }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  hs_upds.init();
+#endif
+  DBUG_RETURN(0);
+}
+
+
+int spider_mbase_handler::append_index_hint(
+  spider_string *str,
+  int link_idx,
+  ulong sql_type
+  )
+{
+  List<Index_hint> *index_hints = spider_get_index_hints(spider);
+  List_iterator <Index_hint> iter(*index_hints);
+  Index_hint *hint;
+//  THD *thd = current_thd;
+  int error_num = 0;
+  DBUG_ENTER("spider_mbase_handler::append_index_hint");
+  DBUG_PRINT("info",("spider this=%p", this));
+
+  while(index_hints && (hint = iter++))
+  {
+//    hint->print(thd, str);
+    if (sql_type != SPIDER_SQL_TYPE_HANDLER)
+    {
+      switch(hint->type)
+      {
+      case INDEX_HINT_IGNORE:
+        if (str->reserve(hint->key_name.length+ SPIDER_SQL_INDEX_IGNORE_LEN + SPIDER_SQL_OPEN_PAREN_LEN + SPIDER_SQL_CLOSE_PAREN_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_INDEX_IGNORE_STR,SPIDER_SQL_INDEX_IGNORE_LEN);
+        str->q_append(SPIDER_SQL_OPEN_PAREN_STR,SPIDER_SQL_OPEN_PAREN_LEN);
+        str->q_append(hint->key_name.str, hint->key_name.length);
+        str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,SPIDER_SQL_CLOSE_PAREN_LEN);
+        break;
+      case INDEX_HINT_USE:
+        if (str->reserve(hint->key_name.length+ SPIDER_SQL_INDEX_USE_LEN + SPIDER_SQL_OPEN_PAREN_LEN + SPIDER_SQL_CLOSE_PAREN_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_INDEX_USE_STR,SPIDER_SQL_INDEX_USE_LEN);
+        str->q_append(SPIDER_SQL_OPEN_PAREN_STR,SPIDER_SQL_OPEN_PAREN_LEN);
+        str->q_append(hint->key_name.str, hint->key_name.length);
+        str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,SPIDER_SQL_CLOSE_PAREN_LEN);
+        break;
+      case INDEX_HINT_FORCE:
+        if (str->reserve(hint->key_name.length+ SPIDER_SQL_INDEX_FORCE_LEN + SPIDER_SQL_OPEN_PAREN_LEN + SPIDER_SQL_CLOSE_PAREN_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_INDEX_FORCE_STR,SPIDER_SQL_INDEX_FORCE_LEN);
+        str->q_append(SPIDER_SQL_OPEN_PAREN_STR,SPIDER_SQL_OPEN_PAREN_LEN);
+        str->q_append(hint->key_name.str, hint->key_name.length);
+        str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,SPIDER_SQL_CLOSE_PAREN_LEN);
+        break;
+      default:
+        //    SPIDER_SQL_COMMA_STR
+        break;
+      }
+    }
+  }
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_table_name_with_adjusting(
+  spider_string *str,
+  int link_idx,
+  ulong sql_type
+) {
+  int error_num = 0;
+  DBUG_ENTER("spider_mbase_handler::append_table_name_with_adjusting");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql_type == SPIDER_SQL_TYPE_HANDLER)
+  {
+    str->q_append(spider->m_handler_cid[link_idx], SPIDER_SQL_HANDLER_CID_LEN);
+  } else {
+    error_num = mysql_share->append_table_name_with_adjusting(str,
+      spider->conn_link_idx[link_idx]);
+  }
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_key_column_types(
+  const key_range *start_key,
+  spider_string *str
+) {
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  KEY *key_info = result_list->key_info;
+  uint key_name_length, key_count;
+  key_part_map full_key_part_map =
+    make_prev_keypart_map(spider_user_defined_key_parts(key_info));
+  key_part_map start_key_part_map;
+  KEY_PART_INFO *key_part;
+  Field *field;
+  char tmp_buf[MAX_FIELD_WIDTH];
+  spider_string tmp_str(tmp_buf, sizeof(tmp_buf), system_charset_info);
+  DBUG_ENTER("spider_mbase_handler::append_key_column_types");
+  DBUG_PRINT("info",("spider this=%p", this));
+  tmp_str.init_calc_mem(115);
+
+  start_key_part_map = start_key->keypart_map & full_key_part_map;
+  DBUG_PRINT("info", ("spider spider_user_defined_key_parts=%u",
+    spider_user_defined_key_parts(key_info)));
+  DBUG_PRINT("info", ("spider full_key_part_map=%lu", full_key_part_map));
+  DBUG_PRINT("info", ("spider start_key_part_map=%lu", start_key_part_map));
+
+  if (!start_key_part_map)
+    DBUG_RETURN(0);
+
+  for (
+    key_part = key_info->key_part,
+    key_count = 0;
+    start_key_part_map;
+    start_key_part_map >>= 1,
+    key_part++,
+    key_count++
+  ) {
+    field = key_part->field;
+    key_name_length = my_sprintf(tmp_buf, (tmp_buf, "c%u", key_count));
+    if (str->reserve(key_name_length + SPIDER_SQL_SPACE_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(tmp_buf, key_name_length);
+    str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+
+    if (tmp_str.ptr() != tmp_buf)
+      tmp_str.set(tmp_buf, sizeof(tmp_buf), system_charset_info);
+    else
+      tmp_str.set_charset(system_charset_info);
+    field->sql_type(*tmp_str.get_str());
+    tmp_str.mem_calc();
+    str->append(tmp_str);
+    if (field->has_charset())
+    {
+      CHARSET_INFO *cs = field->charset();
+      uint coll_length = strlen(cs->name);
+      if (str->reserve(SPIDER_SQL_COLLATE_LEN + coll_length))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_COLLATE_STR, SPIDER_SQL_COLLATE_LEN);
+      str->q_append(cs->name, coll_length);
+    }
+
+    if (str->reserve(SPIDER_SQL_COMMA_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+  str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_key_join_columns_for_bka(
+  const key_range *start_key,
+  spider_string *str,
+  const char **table_aliases,
+  uint *table_alias_lengths
+) {
+  KEY *key_info = spider->result_list.key_info;
+  uint length, key_name_length, key_count;
+  key_part_map full_key_part_map =
+    make_prev_keypart_map(spider_user_defined_key_parts(key_info));
+  key_part_map start_key_part_map;
+  KEY_PART_INFO *key_part;
+  Field *field;
+  char tmp_buf[MAX_FIELD_WIDTH];
+  bool start_where = ((int) str->length() == where_pos);
+  DBUG_ENTER("spider_mbase_handler::append_key_join_columns_for_bka");
+  DBUG_PRINT("info",("spider this=%p", this));
+  start_key_part_map = start_key->keypart_map & full_key_part_map;
+  DBUG_PRINT("info", ("spider spider_user_defined_key_parts=%u",
+    spider_user_defined_key_parts(key_info)));
+  DBUG_PRINT("info", ("spider full_key_part_map=%lu", full_key_part_map));
+  DBUG_PRINT("info", ("spider start_key_part_map=%lu", start_key_part_map));
+
+  if (!start_key_part_map)
+    DBUG_RETURN(0);
+
+  if (start_where)
+  {
+    if (str->reserve(SPIDER_SQL_WHERE_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_WHERE_STR, SPIDER_SQL_WHERE_LEN);
+  } else {
+    if (str->reserve(SPIDER_SQL_AND_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_AND_STR, SPIDER_SQL_AND_LEN);
+  }
+
+  for (
+    key_part = key_info->key_part,
+    key_count = 0;
+    start_key_part_map;
+    start_key_part_map >>= 1,
+    key_part++,
+    key_count++
+  ) {
+    field = key_part->field;
+    key_name_length =
+      mysql_share->column_name_str[field->field_index].length();
+    length = my_sprintf(tmp_buf, (tmp_buf, "c%u", key_count));
+    if (str->reserve(length + table_alias_lengths[0] + key_name_length +
+      /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+      table_alias_lengths[1] + SPIDER_SQL_PF_EQUAL_LEN + SPIDER_SQL_AND_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(table_aliases[0], table_alias_lengths[0]);
+    str->q_append(tmp_buf, length);
+    str->q_append(SPIDER_SQL_PF_EQUAL_STR, SPIDER_SQL_PF_EQUAL_LEN);
+    str->q_append(table_aliases[1], table_alias_lengths[1]);
+    mysql_share->append_column_name(str, field->field_index);
+    str->q_append(SPIDER_SQL_AND_STR, SPIDER_SQL_AND_LEN);
+  }
+  str->length(str->length() - SPIDER_SQL_AND_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_tmp_table_and_sql_for_bka(
+  const key_range *start_key
+) {
+  int error_num;
+  DBUG_ENTER("spider_mbase_handler::append_tmp_table_and_sql_for_bka");
+  DBUG_PRINT("info",("spider this=%p", this));
+  char tmp_table_name[MAX_FIELD_WIDTH * 2],
+    tgt_table_name[MAX_FIELD_WIDTH * 2];
+  int tmp_table_name_length;
+  spider_string tgt_table_name_str(tgt_table_name, MAX_FIELD_WIDTH * 2,
+    mysql_share->db_names_str[0].charset());
+  const char *table_names[2], *table_aliases[2], *table_dot_aliases[2];
+  uint table_name_lengths[2], table_alias_lengths[2],
+    table_dot_alias_lengths[2];
+  tgt_table_name_str.init_calc_mem(99);
+  tgt_table_name_str.length(0);
+  create_tmp_bka_table_name(tmp_table_name, &tmp_table_name_length,
+    first_link_idx);
+  if ((error_num = append_table_name_with_adjusting(&tgt_table_name_str,
+    first_link_idx, SPIDER_SQL_TYPE_SELECT_SQL)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  table_names[0] = tmp_table_name;
+  table_names[1] = tgt_table_name_str.c_ptr_safe();
+  table_name_lengths[0] = tmp_table_name_length;
+  table_name_lengths[1] = tgt_table_name_str.length();
+  table_aliases[0] = SPIDER_SQL_A_STR;
+  table_aliases[1] = SPIDER_SQL_B_STR;
+  table_alias_lengths[0] = SPIDER_SQL_A_LEN;
+  table_alias_lengths[1] = SPIDER_SQL_B_LEN;
+  table_dot_aliases[0] = SPIDER_SQL_A_DOT_STR;
+  table_dot_aliases[1] = SPIDER_SQL_B_DOT_STR;
+  table_dot_alias_lengths[0] = SPIDER_SQL_A_DOT_LEN;
+  table_dot_alias_lengths[1] = SPIDER_SQL_B_DOT_LEN;
+  if (
+    (error_num = append_drop_tmp_bka_table(
+      &tmp_sql, tmp_table_name, tmp_table_name_length,
+      &tmp_sql_pos1, &tmp_sql_pos5, TRUE)) ||
+    (error_num = append_create_tmp_bka_table(
+      start_key,
+      &tmp_sql, tmp_table_name,
+      tmp_table_name_length,
+      &tmp_sql_pos2, spider->share->table_share->table_charset)) ||
+    (error_num = append_insert_tmp_bka_table(
+      start_key,
+      &tmp_sql, tmp_table_name,
+      tmp_table_name_length, &tmp_sql_pos3))
+  )
+    DBUG_RETURN(error_num);
+  tmp_sql_pos4 = tmp_sql.length();
+  if ((error_num = spider_db_append_select(spider)))
+    DBUG_RETURN(error_num);
+  if (sql.reserve(SPIDER_SQL_A_DOT_LEN + SPIDER_SQL_ID_LEN +
+    SPIDER_SQL_COMMA_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  sql.q_append(SPIDER_SQL_A_DOT_STR, SPIDER_SQL_A_DOT_LEN);
+  sql.q_append(SPIDER_SQL_ID_STR, SPIDER_SQL_ID_LEN);
+  sql.q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  if (
+    (error_num = append_select_columns_with_alias(&sql,
+      SPIDER_SQL_B_DOT_STR, SPIDER_SQL_B_DOT_LEN)) ||
+    (error_num = spider_db_mbase_utility->append_from_with_alias(&sql,
+      table_names, table_name_lengths,
+      table_aliases, table_alias_lengths, 2,
+      &table_name_pos, FALSE))
+  )
+    DBUG_RETURN(error_num);
+  if (
+    mysql_share->key_hint &&
+    (error_num = spider_db_append_hint_after_table(spider,
+      &sql, &mysql_share->key_hint[spider->active_index]))
+  )
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  where_pos = sql.length();
+  if (
+    (error_num = append_key_join_columns_for_bka(
+      start_key, &sql,
+      table_dot_aliases, table_dot_alias_lengths)) ||
+    (error_num = append_condition_part(
+      SPIDER_SQL_B_DOT_STR, SPIDER_SQL_B_DOT_LEN,
+      SPIDER_SQL_TYPE_SELECT_SQL, FALSE))
+  )
+    DBUG_RETURN(error_num);
+  if (spider->result_list.direct_order_limit)
+  {
+    if ((error_num = append_key_order_for_direct_order_limit_with_alias(&sql,
+      SPIDER_SQL_B_DOT_STR, SPIDER_SQL_B_DOT_LEN)))
+      DBUG_RETURN(error_num);
+  }
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  else if (spider->result_list.direct_aggregate)
+  {
+    if ((error_num =
+      append_group_by(&sql, SPIDER_SQL_B_DOT_STR, SPIDER_SQL_B_DOT_LEN)))
+      DBUG_RETURN(error_num);
+  }
+#endif
+
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::reuse_tmp_table_and_sql_for_bka()
+{
+  DBUG_ENTER("spider_mbase_handler::reuse_tmp_table_and_sql_for_bka");
+  DBUG_PRINT("info",("spider this=%p", this));
+  tmp_sql.length(tmp_sql_pos4);
+  sql.length(limit_pos);
+  ha_sql.length(ha_limit_pos);
+  DBUG_RETURN(0);
+}
+
+void spider_mbase_handler::create_tmp_bka_table_name(
+  char *tmp_table_name,
+  int *tmp_table_name_length,
+  int link_idx
+) {
+  uint adjust_length, length;
+  DBUG_ENTER("spider_mbase_handler::create_tmp_bka_table_name");
+  if (spider_param_bka_table_name_type(current_thd,
+    mysql_share->spider_share->
+      bka_table_name_types[spider->conn_link_idx[link_idx]]) == 1)
+  {
+    adjust_length =
+      mysql_share->db_nm_max_length -
+      mysql_share->db_names_str[spider->conn_link_idx[link_idx]].length() +
+      mysql_share->table_nm_max_length -
+      mysql_share->table_names_str[spider->conn_link_idx[link_idx]].length();
+    *tmp_table_name_length = mysql_share->db_nm_max_length +
+      mysql_share->table_nm_max_length;
+    memset(tmp_table_name, ' ', adjust_length);
+    tmp_table_name += adjust_length;
+    memcpy(tmp_table_name, mysql_share->db_names_str[link_idx].c_ptr(),
+      mysql_share->db_names_str[link_idx].length());
+    tmp_table_name += mysql_share->db_names_str[link_idx].length();
+    length = my_sprintf(tmp_table_name, (tmp_table_name,
+      "%s%s%p%s", SPIDER_SQL_DOT_STR, SPIDER_SQL_TMP_BKA_STR, spider,
+      SPIDER_SQL_UNDERSCORE_STR));
+    *tmp_table_name_length += length;
+    tmp_table_name += length;
+    memcpy(tmp_table_name,
+      mysql_share->table_names_str[spider->conn_link_idx[link_idx]].c_ptr(),
+      mysql_share->table_names_str[spider->conn_link_idx[link_idx]].length());
+  } else {
+    adjust_length =
+      mysql_share->db_nm_max_length -
+      mysql_share->db_names_str[spider->conn_link_idx[link_idx]].length();
+    *tmp_table_name_length = mysql_share->db_nm_max_length;
+    memset(tmp_table_name, ' ', adjust_length);
+    tmp_table_name += adjust_length;
+    memcpy(tmp_table_name, mysql_share->db_names_str[link_idx].c_ptr(),
+      mysql_share->db_names_str[link_idx].length());
+    tmp_table_name += mysql_share->db_names_str[link_idx].length();
+    length = my_sprintf(tmp_table_name, (tmp_table_name,
+      "%s%s%p", SPIDER_SQL_DOT_STR, SPIDER_SQL_TMP_BKA_STR, spider));
+    *tmp_table_name_length += length;
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_mbase_handler::append_create_tmp_bka_table(
+  const key_range *start_key,
+  spider_string *str,
+  char *tmp_table_name,
+  int tmp_table_name_length,
+  int *db_name_pos,
+  CHARSET_INFO *table_charset
+) {
+  int error_num;
+  SPIDER_SHARE *share = spider->share;
+  THD *thd = spider->wide_handler->trx->thd;
+  char *bka_engine = spider_param_bka_engine(thd, share->bka_engine);
+  uint bka_engine_length = strlen(bka_engine),
+    cset_length = strlen(table_charset->csname),
+    coll_length = strlen(table_charset->name);
+  DBUG_ENTER("spider_mbase_handler::append_create_tmp_bka_table");
+  if (str->reserve(SPIDER_SQL_CREATE_TMP_LEN + tmp_table_name_length +
+    SPIDER_SQL_OPEN_PAREN_LEN + SPIDER_SQL_ID_LEN + SPIDER_SQL_ID_TYPE_LEN +
+    SPIDER_SQL_COMMA_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_CREATE_TMP_STR, SPIDER_SQL_CREATE_TMP_LEN);
+  *db_name_pos = str->length();
+  str->q_append(tmp_table_name, tmp_table_name_length);
+  str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  str->q_append(SPIDER_SQL_ID_STR, SPIDER_SQL_ID_LEN);
+  str->q_append(SPIDER_SQL_ID_TYPE_STR, SPIDER_SQL_ID_TYPE_LEN);
+  str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  if ((error_num = append_key_column_types(start_key, str)))
+    DBUG_RETURN(error_num);
+  if (str->reserve(SPIDER_SQL_ENGINE_LEN + bka_engine_length +
+    SPIDER_SQL_DEF_CHARSET_LEN + cset_length + SPIDER_SQL_COLLATE_LEN +
+    coll_length + SPIDER_SQL_SEMICOLON_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_ENGINE_STR, SPIDER_SQL_ENGINE_LEN);
+  str->q_append(bka_engine, bka_engine_length);
+  str->q_append(SPIDER_SQL_DEF_CHARSET_STR, SPIDER_SQL_DEF_CHARSET_LEN);
+  str->q_append(table_charset->csname, cset_length);
+  str->q_append(SPIDER_SQL_COLLATE_STR, SPIDER_SQL_COLLATE_LEN);
+  str->q_append(table_charset->name, coll_length);
+  str->q_append(SPIDER_SQL_SEMICOLON_STR, SPIDER_SQL_SEMICOLON_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_drop_tmp_bka_table(
+  spider_string *str,
+  char *tmp_table_name,
+  int tmp_table_name_length,
+  int *db_name_pos,
+  int *drop_table_end_pos,
+  bool with_semicolon
+) {
+  DBUG_ENTER("spider_mbase_handler::append_drop_tmp_bka_table");
+  if (str->reserve(SPIDER_SQL_DROP_TMP_LEN + tmp_table_name_length +
+    (with_semicolon ? SPIDER_SQL_SEMICOLON_LEN : 0)))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_DROP_TMP_STR, SPIDER_SQL_DROP_TMP_LEN);
+  *db_name_pos = str->length();
+  str->q_append(tmp_table_name, tmp_table_name_length);
+  *drop_table_end_pos = str->length();
+  if (with_semicolon)
+    str->q_append(SPIDER_SQL_SEMICOLON_STR, SPIDER_SQL_SEMICOLON_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_insert_tmp_bka_table(
+  const key_range *start_key,
+  spider_string *str,
+  char *tmp_table_name,
+  int tmp_table_name_length,
+  int *db_name_pos
+) {
+  int error_num;
+  DBUG_ENTER("spider_mbase_handler::append_insert_tmp_bka_table");
+  if (str->reserve(SPIDER_SQL_INSERT_LEN + SPIDER_SQL_INTO_LEN +
+    tmp_table_name_length + SPIDER_SQL_OPEN_PAREN_LEN + SPIDER_SQL_ID_LEN +
+    SPIDER_SQL_COMMA_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_INSERT_STR, SPIDER_SQL_INSERT_LEN);
+  str->q_append(SPIDER_SQL_INTO_STR, SPIDER_SQL_INTO_LEN);
+  *db_name_pos = str->length();
+  str->q_append(tmp_table_name, tmp_table_name_length);
+  str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  str->q_append(SPIDER_SQL_ID_STR, SPIDER_SQL_ID_LEN);
+  str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  if ((error_num = spider_db_append_key_columns(start_key, spider, str)))
+    DBUG_RETURN(error_num);
+  if (str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN + SPIDER_SQL_VALUES_LEN +
+    SPIDER_SQL_OPEN_PAREN_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+  str->q_append(SPIDER_SQL_VALUES_STR, SPIDER_SQL_VALUES_LEN);
+  str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_union_table_and_sql_for_bka(
+  const key_range *start_key
+) {
+  int error_num;
+  DBUG_ENTER("spider_mbase_handler::append_union_table_and_sql_for_bka");
+  DBUG_PRINT("info",("spider this=%p", this));
+  char tgt_table_name[MAX_FIELD_WIDTH * 2];
+  spider_string tgt_table_name_str(tgt_table_name, MAX_FIELD_WIDTH * 2,
+    mysql_share->db_names_str[0].charset());
+  const char *table_names[2], *table_aliases[2], *table_dot_aliases[2];
+  uint table_name_lengths[2], table_alias_lengths[2],
+    table_dot_alias_lengths[2];
+  tgt_table_name_str.init_calc_mem(233);
+  tgt_table_name_str.length(0);
+  if ((error_num = append_table_name_with_adjusting(&tgt_table_name_str,
+    first_link_idx, SPIDER_SQL_TYPE_SELECT_SQL)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  table_names[0] = "";
+  table_names[1] = tgt_table_name_str.c_ptr_safe();
+  table_name_lengths[0] = 0;
+  table_name_lengths[1] = tgt_table_name_str.length();
+  table_aliases[0] = SPIDER_SQL_A_STR;
+  table_aliases[1] = SPIDER_SQL_B_STR;
+  table_alias_lengths[0] = SPIDER_SQL_A_LEN;
+  table_alias_lengths[1] = SPIDER_SQL_B_LEN;
+  table_dot_aliases[0] = SPIDER_SQL_A_DOT_STR;
+  table_dot_aliases[1] = SPIDER_SQL_B_DOT_STR;
+  table_dot_alias_lengths[0] = SPIDER_SQL_A_DOT_LEN;
+  table_dot_alias_lengths[1] = SPIDER_SQL_B_DOT_LEN;
+
+  if ((error_num = spider_db_append_select(spider)))
+    DBUG_RETURN(error_num);
+  if (sql.reserve(SPIDER_SQL_A_DOT_LEN + SPIDER_SQL_ID_LEN +
+    SPIDER_SQL_COMMA_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  sql.q_append(SPIDER_SQL_A_DOT_STR, SPIDER_SQL_A_DOT_LEN);
+  sql.q_append(SPIDER_SQL_ID_STR, SPIDER_SQL_ID_LEN);
+  sql.q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  if ((error_num = append_select_columns_with_alias(&sql,
+    SPIDER_SQL_B_DOT_STR, SPIDER_SQL_B_DOT_LEN)))
+    DBUG_RETURN(error_num);
+  if (sql.reserve(SPIDER_SQL_FROM_LEN + (SPIDER_SQL_OPEN_PAREN_LEN * 2)))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  sql.q_append(SPIDER_SQL_FROM_STR, SPIDER_SQL_FROM_LEN);
+  sql.q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  sql.q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  tmp_sql_pos1 = sql.length();
+
+  if (
+    (error_num = spider_db_mbase_utility->append_from_with_alias(&tmp_sql,
+      table_names, table_name_lengths,
+      table_aliases, table_alias_lengths, 2,
+      &table_name_pos, FALSE))
+  )
+    DBUG_RETURN(error_num);
+  if (
+    mysql_share->key_hint &&
+    (error_num = spider_db_append_hint_after_table(spider,
+      &tmp_sql, &mysql_share->key_hint[spider->active_index]))
+  )
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  where_pos = tmp_sql.length();
+  if (
+    (error_num = append_key_join_columns_for_bka(
+      start_key, &tmp_sql,
+      table_dot_aliases, table_dot_alias_lengths)) ||
+    (error_num = append_condition_part(
+      SPIDER_SQL_B_DOT_STR, SPIDER_SQL_B_DOT_LEN,
+      SPIDER_SQL_TYPE_TMP_SQL, FALSE))
+  )
+    DBUG_RETURN(error_num);
+  if (spider->result_list.direct_order_limit)
+  {
+    if ((error_num =
+      append_key_order_for_direct_order_limit_with_alias(&tmp_sql,
+        SPIDER_SQL_B_DOT_STR, SPIDER_SQL_B_DOT_LEN))
+    )
+      DBUG_RETURN(error_num);
+  }
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  else if (spider->result_list.direct_aggregate)
+  {
+    if ((error_num =
+      append_group_by(&tmp_sql, SPIDER_SQL_B_DOT_STR, SPIDER_SQL_B_DOT_LEN)))
+      DBUG_RETURN(error_num);
+  }
+#endif
+
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::reuse_union_table_and_sql_for_bka()
+{
+  DBUG_ENTER("spider_mbase_handler::reuse_union_table_and_sql_for_bka");
+  DBUG_PRINT("info",("spider this=%p", this));
+  sql.length(tmp_sql_pos1);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_insert_for_recovery(
+  ulong sql_type,
+  int link_idx
+) {
+  const TABLE *table = spider->get_table();
+  SPIDER_SHARE *share = spider->share;
+  Field **field;
+  uint field_name_length = 0;
+  bool add_value = FALSE;
+  spider_string *insert_sql;
+  DBUG_ENTER("spider_mbase_handler::append_insert_for_recovery");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql_type == SPIDER_SQL_TYPE_INSERT_SQL)
+  {
+    insert_sql = &spider->result_list.insert_sqls[link_idx];
+    insert_sql->length(0);
+  } else {
+    insert_sql = &spider->result_list.update_sqls[link_idx];
+  }
+  if (insert_sql->reserve(
+    SPIDER_SQL_INSERT_LEN + SPIDER_SQL_SQL_IGNORE_LEN +
+    SPIDER_SQL_INTO_LEN + mysql_share->db_nm_max_length +
+    SPIDER_SQL_DOT_LEN + mysql_share->table_nm_max_length +
+    /* SPIDER_SQL_NAME_QUOTE_LEN */ 4 + SPIDER_SQL_OPEN_PAREN_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  insert_sql->q_append(SPIDER_SQL_INSERT_STR, SPIDER_SQL_INSERT_LEN);
+  insert_sql->q_append(SPIDER_SQL_SQL_IGNORE_STR, SPIDER_SQL_SQL_IGNORE_LEN);
+  insert_sql->q_append(SPIDER_SQL_INTO_STR, SPIDER_SQL_INTO_LEN);
+  mysql_share->append_table_name(insert_sql, spider->conn_link_idx[link_idx]);
+  insert_sql->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  for (field = table->field; *field; field++)
+  {
+    field_name_length =
+      mysql_share->column_name_str[(*field)->field_index].length();
+    if (insert_sql->reserve(field_name_length +
+      /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_COMMA_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    mysql_share->append_column_name(insert_sql, (*field)->field_index);
+    insert_sql->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+  if (field_name_length)
+    insert_sql->length(insert_sql->length() - SPIDER_SQL_COMMA_LEN);
+  if (insert_sql->reserve(SPIDER_SQL_CLOSE_PAREN_LEN + SPIDER_SQL_VALUES_LEN +
+    SPIDER_SQL_OPEN_PAREN_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  insert_sql->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+  insert_sql->q_append(SPIDER_SQL_VALUES_STR, SPIDER_SQL_VALUES_LEN);
+  insert_sql->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  for (field = table->field; *field; field++)
+  {
+    add_value = TRUE;
+    if ((*field)->is_null())
+    {
+      if (insert_sql->reserve(SPIDER_SQL_NULL_LEN + SPIDER_SQL_COMMA_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      insert_sql->q_append(SPIDER_SQL_NULL_STR, SPIDER_SQL_NULL_LEN);
+    } else {
+      if (
+        spider_db_mbase_utility->
+          append_column_value(spider, insert_sql, *field, NULL,
+            share->access_charset) ||
+        insert_sql->reserve(SPIDER_SQL_COMMA_LEN)
+      )
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    insert_sql->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+  if (add_value)
+    insert_sql->length(insert_sql->length() - SPIDER_SQL_COMMA_LEN);
+  if (insert_sql->reserve(SPIDER_SQL_CLOSE_PAREN_LEN, SPIDER_SQL_COMMA_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  insert_sql->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+  if (sql_type == SPIDER_SQL_TYPE_INSERT_SQL)
+  {
+    exec_insert_sql = insert_sql;
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_update(
+  const TABLE *table,
+  my_ptrdiff_t ptr_diff
+) {
+  int error_num;
+  spider_string *str = &update_sql;
+  DBUG_ENTER("spider_mbase_handler::append_update");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->length() > 0)
+  {
+    if (str->reserve(SPIDER_SQL_SEMICOLON_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SEMICOLON_STR, SPIDER_SQL_SEMICOLON_LEN);
+  }
+
+  if (
+    (error_num = append_update(str, 0)) ||
+    (error_num = append_update_set(str)) ||
+    (error_num = append_update_where(str, table, ptr_diff))
+  )
+    DBUG_RETURN(error_num);
+  filled_up = (str->length() >= (uint) spider->result_list.bulk_update_size);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_update(
+  const TABLE *table,
+  my_ptrdiff_t ptr_diff,
+  int link_idx
+) {
+  int error_num;
+  SPIDER_SHARE *share = spider->share;
+  spider_string *str = &spider->result_list.update_sqls[link_idx];
+  DBUG_ENTER("spider_mbase_handler::append_update");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->length() > 0)
+  {
+    if (str->reserve(SPIDER_SQL_SEMICOLON_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SEMICOLON_STR, SPIDER_SQL_SEMICOLON_LEN);
+  }
+
+  if (
+    (error_num = append_update(str, link_idx)) ||
+    (error_num = append_update_set(str)) ||
+    (error_num = append_update_where(str, table, ptr_diff))
+  )
+    DBUG_RETURN(error_num);
+
+  if (
+    spider->pk_update &&
+    share->link_statuses[link_idx] == SPIDER_LINK_STATUS_RECOVERY
+  ) {
+    if (str->reserve(SPIDER_SQL_SEMICOLON_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SEMICOLON_STR, SPIDER_SQL_SEMICOLON_LEN);
+    if ((error_num = append_insert_for_recovery(
+      SPIDER_SQL_TYPE_UPDATE_SQL, link_idx)))
+      DBUG_RETURN(error_num);
+  }
+
+  if (!filled_up)
+    filled_up = (str->length() >= (uint) spider->result_list.bulk_update_size);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_delete(
+  const TABLE *table,
+  my_ptrdiff_t ptr_diff
+) {
+  int error_num;
+  spider_string *str = &update_sql;
+  DBUG_ENTER("spider_mbase_handler::append_delete");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->length() > 0)
+  {
+    if (str->reserve(SPIDER_SQL_SEMICOLON_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SEMICOLON_STR, SPIDER_SQL_SEMICOLON_LEN);
+  }
+
+  if (
+    (error_num = append_delete(str)) ||
+    (error_num = append_from(str, SPIDER_SQL_TYPE_DELETE_SQL,
+      first_link_idx)) ||
+    (error_num = append_update_where(str, table, ptr_diff))
+  )
+    DBUG_RETURN(error_num);
+  filled_up = (str->length() >= (uint) spider->result_list.bulk_update_size);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_delete(
+  const TABLE *table,
+  my_ptrdiff_t ptr_diff,
+  int link_idx
+) {
+  int error_num;
+  spider_string *str = &spider->result_list.update_sqls[link_idx];
+  DBUG_ENTER("spider_mbase_handler::append_delete");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->length() > 0)
+  {
+    if (str->reserve(SPIDER_SQL_SEMICOLON_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SEMICOLON_STR, SPIDER_SQL_SEMICOLON_LEN);
+  }
+
+  if (
+    (error_num = append_delete(str)) ||
+    (error_num = append_from(str, SPIDER_SQL_TYPE_DELETE_SQL, link_idx)) ||
+    (error_num = append_update_where(str, table, ptr_diff))
+  )
+    DBUG_RETURN(error_num);
+  if (!filled_up)
+    filled_up = (str->length() >= (uint) spider->result_list.bulk_update_size);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_insert_part()
+{
+  int error_num;
+  DBUG_ENTER("spider_mbase_handler::append_insert_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  error_num = append_insert(&insert_sql, 0);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_insert(
+  spider_string *str,
+  int link_idx
+) {
+  SPIDER_SHARE *share = spider->share;
+  DBUG_ENTER("spider_mbase_handler::append_insert");
+  direct_insert_kind = SPIDER_SQL_DIRECT_INSERT_KIND_INSERT;
+  if (
+    (
+      spider->wide_handler->write_can_replace ||
+      /* for direct_dup_insert without patch for partition */
+      spider->wide_handler->sql_command == SQLCOM_REPLACE ||
+      spider->wide_handler->sql_command == SQLCOM_REPLACE_SELECT
+    ) &&
+    spider->direct_dup_insert
+  ) {
+    direct_insert_kind = SPIDER_SQL_DIRECT_INSERT_KIND_REPLACE;
+    if (str->reserve(SPIDER_SQL_REPLACE_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_REPLACE_STR, SPIDER_SQL_REPLACE_LEN);
+  } else {
+    if (str->reserve(SPIDER_SQL_INSERT_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_INSERT_STR, SPIDER_SQL_INSERT_LEN);
+  }
+  if (spider->wide_handler->low_priority)
+  {
+    if (str->reserve(SPIDER_SQL_LOW_PRIORITY_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_LOW_PRIORITY_STR, SPIDER_SQL_LOW_PRIORITY_LEN);
+  }
+  else if (spider->wide_handler->insert_delayed)
+  {
+    if (share->internal_delayed)
+    {
+      if (str->reserve(SPIDER_SQL_SQL_DELAYED_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_SQL_DELAYED_STR, SPIDER_SQL_SQL_DELAYED_LEN);
+    }
+  }
+  else if (
+    spider->wide_handler->lock_type >= TL_WRITE &&
+    !spider->wide_handler->write_can_replace &&
+    /* for direct_dup_insert without patch for partition */
+    spider->wide_handler->sql_command != SQLCOM_REPLACE &&
+    spider->wide_handler->sql_command != SQLCOM_REPLACE_SELECT
+  ) {
+    if (str->reserve(SPIDER_SQL_HIGH_PRIORITY_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_HIGH_PRIORITY_STR, SPIDER_SQL_HIGH_PRIORITY_LEN);
+  }
+  if (
+    spider->wide_handler->ignore_dup_key &&
+    spider->direct_dup_insert &&
+    !spider->wide_handler->write_can_replace &&
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+    (!spider->wide_handler->insert_with_update || !dup_update_sql.length()) &&
+#else
+    !spider->wide_handler->insert_with_update &&
+#endif
+    /* for direct_dup_insert without patch for partition */
+    spider->wide_handler->sql_command != SQLCOM_REPLACE &&
+    spider->wide_handler->sql_command != SQLCOM_REPLACE_SELECT
+  ) {
+    direct_insert_kind = SPIDER_SQL_DIRECT_INSERT_KIND_IGNORE;
+    if (str->reserve(SPIDER_SQL_SQL_IGNORE_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SQL_IGNORE_STR, SPIDER_SQL_SQL_IGNORE_LEN);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_update_part()
+{
+  int error_num;
+  DBUG_ENTER("spider_mbase_handler::append_update_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  error_num = append_update(&update_sql, 0);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_update(
+  spider_string *str,
+  int link_idx
+) {
+  DBUG_ENTER("spider_mbase_handler::append_update");
+  if (str->reserve(SPIDER_SQL_UPDATE_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_UPDATE_STR, SPIDER_SQL_UPDATE_LEN);
+  if (spider->wide_handler->low_priority)
+  {
+    if (str->reserve(SPIDER_SQL_LOW_PRIORITY_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_LOW_PRIORITY_STR, SPIDER_SQL_LOW_PRIORITY_LEN);
+  }
+  if (
+    spider->wide_handler->ignore_dup_key &&
+    !spider->wide_handler->insert_with_update
+  ) {
+    if (str->reserve(SPIDER_SQL_SQL_IGNORE_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SQL_IGNORE_STR, SPIDER_SQL_SQL_IGNORE_LEN);
+  }
+  if (str->reserve(mysql_share->db_nm_max_length +
+    SPIDER_SQL_DOT_LEN + mysql_share->table_nm_max_length +
+    /* SPIDER_SQL_NAME_QUOTE_LEN */ 4))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  table_name_pos = str->length();
+  append_table_name_with_adjusting(str, link_idx, SPIDER_SQL_TYPE_UPDATE_SQL);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_delete_part()
+{
+  int error_num;
+  DBUG_ENTER("spider_mbase_handler::append_delete_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  error_num = append_delete(&update_sql);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_delete(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_mbase_handler::append_delete");
+  if (str->reserve(SPIDER_SQL_DELETE_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_DELETE_STR, SPIDER_SQL_DELETE_LEN);
+  if (spider->wide_handler->low_priority)
+  {
+    if (str->reserve(SPIDER_SQL_LOW_PRIORITY_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_LOW_PRIORITY_STR, SPIDER_SQL_LOW_PRIORITY_LEN);
+  }
+  if (spider->wide_handler->quick_mode)
+  {
+    if (str->reserve(SPIDER_SQL_SQL_QUICK_MODE_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SQL_QUICK_MODE_STR,
+      SPIDER_SQL_SQL_QUICK_MODE_LEN);
+  }
+  if (spider->wide_handler->ignore_dup_key)
+  {
+    if (str->reserve(SPIDER_SQL_SQL_IGNORE_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SQL_IGNORE_STR, SPIDER_SQL_SQL_IGNORE_LEN);
+  }
+  str->length(str->length() - 1);
+  DBUG_RETURN(0);
+}
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+int spider_mbase_handler::append_increment_update_set_part()
+{
+  int error_num;
+  DBUG_ENTER("spider_mbase_handler::append_increment_update_set_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  error_num = append_increment_update_set(&update_sql);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_increment_update_set(
+  spider_string *str
+) {
+  uint field_name_length;
+  uint roop_count;
+  Field *field;
+  DBUG_ENTER("spider_mbase_handler::append_increment_update_set");
+  if (str->reserve(SPIDER_SQL_SET_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_SET_STR, SPIDER_SQL_SET_LEN);
+  const SPIDER_HS_STRING_REF *value = hs_upds.ptr();
+  for (roop_count = 0; roop_count < hs_upds.size();
+    roop_count++)
+  {
+    if (
+      value[roop_count].size() == 1 &&
+      *(value[roop_count].begin()) == '0'
+    )
+      continue;
+
+    Field *top_table_field =
+      spider->get_top_table_field(spider->hs_pushed_ret_fields[roop_count]);
+    if (!(field = spider->field_exchange(top_table_field)))
+      continue;
+    field_name_length =
+      mysql_share->column_name_str[field->field_index].length();
+
+    if (str->reserve(field_name_length * 2 + /* SPIDER_SQL_NAME_QUOTE_LEN */
+      4 + SPIDER_SQL_EQUAL_LEN + SPIDER_SQL_HS_INCREMENT_LEN +
+      SPIDER_SQL_COMMA_LEN + value[roop_count].size()))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+
+    mysql_share->append_column_name(str, field->field_index);
+    str->q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+    mysql_share->append_column_name(str, field->field_index);
+    if (spider->hs_increment)
+      str->q_append(SPIDER_SQL_HS_INCREMENT_STR,
+        SPIDER_SQL_HS_INCREMENT_LEN);
+    else
+      str->q_append(SPIDER_SQL_HS_DECREMENT_STR,
+        SPIDER_SQL_HS_DECREMENT_LEN);
+    str->q_append(value[roop_count].begin(), value[roop_count].size());
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+  str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  DBUG_RETURN(0);
+}
+#endif
+#endif
+
+int spider_mbase_handler::append_update_set_part()
+{
+  int error_num;
+  DBUG_ENTER("spider_mbase_handler::append_update_set_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  error_num = append_update_set(&update_sql);
+  where_pos = update_sql.length();
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_update_set(
+  spider_string *str
+) {
+  uint field_name_length;
+  SPIDER_SHARE *share = spider->share;
+  TABLE *table = spider->get_table();
+  Field **fields;
+  DBUG_ENTER("spider_mbase_handler::append_update_set");
+  if (str->reserve(SPIDER_SQL_SET_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_SET_STR, SPIDER_SQL_SET_LEN);
+  for (fields = table->field; *fields; fields++)
+  {
+    if (bitmap_is_set(table->write_set, (*fields)->field_index))
+    {
+      field_name_length =
+        mysql_share->column_name_str[(*fields)->field_index].length();
+      if ((*fields)->is_null())
+      {
+        if (str->reserve(field_name_length + /* SPIDER_SQL_NAME_QUOTE_LEN */
+          2 + SPIDER_SQL_EQUAL_LEN + SPIDER_SQL_NULL_LEN +
+          SPIDER_SQL_COMMA_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        mysql_share->append_column_name(str, (*fields)->field_index);
+        str->q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+        str->q_append(SPIDER_SQL_NULL_STR, SPIDER_SQL_NULL_LEN);
+      } else {
+        if (str->reserve(field_name_length + /* SPIDER_SQL_NAME_QUOTE_LEN */
+          2 + SPIDER_SQL_EQUAL_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        mysql_share->append_column_name(str, (*fields)->field_index);
+        str->q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+#ifndef DBUG_OFF
+        MY_BITMAP *tmp_map = dbug_tmp_use_all_columns(table, &table->read_set);
+#endif
+        if (
+          spider_db_mbase_utility->
+            append_column_value(spider, str, *fields, NULL,
+              share->access_charset) ||
+          str->reserve(SPIDER_SQL_COMMA_LEN)
+        ) {
+#ifndef DBUG_OFF
+          dbug_tmp_restore_column_map(&table->read_set, tmp_map);
+#endif
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+#ifndef DBUG_OFF
+        dbug_tmp_restore_column_map(&table->read_set, tmp_map);
+#endif
+      }
+      str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+    }
+  }
+  str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  DBUG_RETURN(0);
+}
+
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+int spider_mbase_handler::append_direct_update_set_part()
+{
+  int error_num;
+  DBUG_ENTER("spider_mbase_handler::append_direct_update_set_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  error_num = append_direct_update_set(&update_sql);
+  where_pos = update_sql.length();
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_direct_update_set(
+  spider_string *str
+) {
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  uint field_name_length;
+  SPIDER_SHARE *share = spider->share;
+#ifndef DBUG_OFF
+  TABLE *table = spider->get_table();
+#endif
+#endif
+  DBUG_ENTER("spider_mbase_handler::append_direct_update_set");
+  if (
+    spider->direct_update_kinds == SPIDER_SQL_KIND_SQL &&
+    spider->wide_handler->direct_update_fields
+  ) {
+    if (str->reserve(SPIDER_SQL_SET_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SET_STR, SPIDER_SQL_SET_LEN);
+    DBUG_RETURN(spider_db_append_update_columns(spider, str, NULL, 0,
+      dbton_id, FALSE, NULL));
+  }
+
+  if (
+    (spider->direct_update_kinds & SPIDER_SQL_KIND_SQL)
+  ) {
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    size_t roop_count;
+    Field *field;
+    if (str->reserve(SPIDER_SQL_SET_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SET_STR, SPIDER_SQL_SET_LEN);
+    for (roop_count = 0; roop_count < spider->hs_pushed_ret_fields_num;
+      roop_count++)
+    {
+      Field *top_table_field =
+        spider->get_top_table_field(spider->hs_pushed_ret_fields[roop_count]);
+      if (!(field = spider->field_exchange(top_table_field)))
+        continue;
+      field_name_length =
+        mysql_share->column_name_str[field->field_index].length();
+      if (top_table_field->is_null())
+      {
+        if (str->reserve(field_name_length + /* SPIDER_SQL_NAME_QUOTE_LEN */
+          2 + SPIDER_SQL_EQUAL_LEN + SPIDER_SQL_NULL_LEN +
+          SPIDER_SQL_COMMA_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        mysql_share->append_column_name(str, field->field_index);
+        str->q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+        str->q_append(SPIDER_SQL_NULL_STR, SPIDER_SQL_NULL_LEN);
+      } else {
+        if (str->reserve(field_name_length + /* SPIDER_SQL_NAME_QUOTE_LEN */
+          2 + SPIDER_SQL_EQUAL_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        mysql_share->append_column_name(str, field->field_index);
+        str->q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+#ifndef DBUG_OFF
+        my_bitmap_map *tmp_map = dbug_tmp_use_all_columns(table,
+          table->read_set);
+#endif
+        if (
+          spider_db_mbase_utility->
+            append_column_value(spider, str, top_table_field, NULL,
+              share->access_charset) ||
+          str->reserve(SPIDER_SQL_COMMA_LEN)
+        ) {
+#ifndef DBUG_OFF
+          dbug_tmp_restore_column_map(table->read_set, tmp_map);
+#endif
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+#ifndef DBUG_OFF
+        dbug_tmp_restore_column_map(table->read_set, tmp_map);
+#endif
+      }
+      str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+    }
+    str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+#else
+    DBUG_ASSERT(0);
+#endif
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_dup_update_pushdown_part(
+  const char *alias,
+  uint alias_length
+) {
+  int error_num;
+  DBUG_ENTER("spider_mbase_handler::append_dup_update_pushdown_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  dup_update_sql.length(0);
+  error_num = append_update_columns(&dup_update_sql, alias, alias_length);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_update_columns_part(
+  const char *alias,
+  uint alias_length
+) {
+  int error_num;
+  DBUG_ENTER("spider_mbase_handler::append_update_columns_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  error_num = append_update_columns(&update_sql, alias, alias_length);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::check_update_columns_part()
+{
+  int error_num;
+  DBUG_ENTER("spider_mbase_handler::check_update_columns_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  error_num = append_update_columns(NULL, NULL, 0);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_update_columns(
+  spider_string *str,
+  const char *alias,
+  uint alias_length
+) {
+  int error_num;
+  DBUG_ENTER("spider_mbase_handler::append_update_columns");
+  error_num = spider_db_append_update_columns(spider, str,
+    alias, alias_length, dbton_id, FALSE, NULL);
+  DBUG_RETURN(error_num);
+}
+#endif
+
+int spider_mbase_handler::append_select_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_select_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      str = &ha_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_select(str, sql_type);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_select(
+  spider_string *str,
+  ulong sql_type
+) {
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  SPIDER_WIDE_HANDLER *wide_handler = spider->wide_handler;
+  DBUG_ENTER("spider_mbase_handler::append_select");
+  if (sql_type == SPIDER_SQL_TYPE_HANDLER)
+  {
+    if (str->reserve(SPIDER_SQL_HANDLER_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_HANDLER_STR, SPIDER_SQL_HANDLER_LEN);
+  } else {
+    if (str->reserve(SPIDER_SQL_SELECT_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SELECT_STR, SPIDER_SQL_SELECT_LEN);
+    if (result_list->direct_distinct)
+    {
+      if (str->reserve(SPIDER_SQL_DISTINCT_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_DISTINCT_STR, SPIDER_SQL_DISTINCT_LEN);
+    }
+    if (wide_handler->external_lock_type != F_WRLCK &&
+      wide_handler->lock_mode < 1)
+    {
+      /* no lock */
+#ifdef SPIDER_SQL_CACHE_IS_IN_LEX
+      LEX *lex = wide_handler->trx->thd->lex;
+#else
+      st_select_lex *select_lex =
+        &wide_handler->trx->thd->lex->select_lex;
+#endif
+      if (
+#ifdef SPIDER_SQL_CACHE_IS_IN_LEX
+        lex->sql_cache == LEX::SQL_CACHE &&
+#else
+        select_lex->sql_cache == SELECT_LEX::SQL_CACHE &&
+#endif
+        (spider->share->query_cache_sync & 1)
+      ) {
+        if (str->reserve(SPIDER_SQL_SQL_CACHE_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_SQL_CACHE_STR, SPIDER_SQL_SQL_CACHE_LEN);
+      } else if (
+#ifdef SPIDER_SQL_CACHE_IS_IN_LEX
+        lex->sql_cache == LEX::SQL_NO_CACHE &&
+#else
+        select_lex->sql_cache == SELECT_LEX::SQL_NO_CACHE &&
+#endif
+        (spider->share->query_cache_sync & 2)
+      ) {
+        if (str->reserve(SPIDER_SQL_SQL_NO_CACHE_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_SQL_NO_CACHE_STR,
+          SPIDER_SQL_SQL_NO_CACHE_LEN);
+      } else if (spider->share->query_cache == 1)
+      {
+        if (str->reserve(SPIDER_SQL_SQL_CACHE_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_SQL_CACHE_STR, SPIDER_SQL_SQL_CACHE_LEN);
+      } else if (spider->share->query_cache == 2)
+      {
+        if (str->reserve(SPIDER_SQL_SQL_NO_CACHE_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_SQL_NO_CACHE_STR,
+          SPIDER_SQL_SQL_NO_CACHE_LEN);
+      }
+    }
+    if (wide_handler->high_priority)
+    {
+      if (str->reserve(SPIDER_SQL_HIGH_PRIORITY_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_HIGH_PRIORITY_STR,
+        SPIDER_SQL_HIGH_PRIORITY_LEN);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_table_select_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_table_select_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_table_select(str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_table_select(
+  spider_string *str
+) {
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  st_select_lex *select_lex = NULL;
+  bool sgb = (spider->result_list.direct_aggregate &&
+    spider_param_strict_group_by(current_thd, (strict_group_by ? 1 : 0)) == 1);
+#endif
+  DBUG_ENTER("spider_mbase_handler::append_table_select");
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  if (sgb)
+  {
+    select_lex = spider_get_select_lex(spider);
+    JOIN *join = select_lex->join;
+    if (!(*join->sum_funcs) && !select_lex->group_list.elements)
+    {
+      select_lex = NULL;
+    }
+  }
+  if (select_lex)
+  {
+    TABLE *table = spider->get_table();
+    Field **field;
+    int field_length;
+    for (field = table->field; *field; field++)
+    {
+      field_length =
+        mysql_share->column_name_str[(*field)->field_index].length();
+      if (!spider_db_check_select_colum_in_group(select_lex, *field))
+      {
+        if (str->reserve(SPIDER_SQL_MIN_LEN + SPIDER_SQL_OPEN_PAREN_LEN +
+          field_length + /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+          SPIDER_SQL_CLOSE_PAREN_LEN + SPIDER_SQL_COMMA_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_MIN_STR, SPIDER_SQL_MIN_LEN);
+        str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+        mysql_share->append_column_name(str, (*field)->field_index);
+        str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+      } else {
+        if (str->reserve(field_length + /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+          SPIDER_SQL_COMMA_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        mysql_share->append_column_name(str, (*field)->field_index);
+      }
+      str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+    }
+    str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  } else {
+#endif
+    table_name_pos = str->length() + mysql_share->table_select_pos;
+    if (str->append(*(mysql_share->table_select)))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  }
+#endif
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_key_select_part(
+  ulong sql_type,
+  uint idx
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_key_select_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_key_select(str, idx);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_key_select(
+  spider_string *str,
+  uint idx
+) {
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  st_select_lex *select_lex = NULL;
+  bool sgb = (spider->result_list.direct_aggregate &&
+    spider_param_strict_group_by(current_thd, (strict_group_by ? 1 : 0)) == 1);
+#endif
+  DBUG_ENTER("spider_mbase_handler::append_key_select");
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  if (sgb)
+  {
+    select_lex = spider_get_select_lex(spider);
+    JOIN *join = select_lex->join;
+    if (!(*join->sum_funcs) && !select_lex->group_list.elements)
+    {
+      select_lex = NULL;
+    }
+  }
+  if (select_lex)
+  {
+    TABLE *table = spider->get_table();
+    KEY *key_info = &table->key_info[idx];
+    KEY_PART_INFO *key_part;
+    Field *field;
+    uint part_num;
+    int field_length;
+    for (key_part = key_info->key_part, part_num = 0;
+      part_num < spider_user_defined_key_parts(key_info);
+      key_part++, part_num++)
+    {
+      field = key_part->field;
+      field_length = mysql_share->column_name_str[field->field_index].length();
+      if (!spider_db_check_select_colum_in_group(select_lex, field))
+      {
+        if (str->reserve(SPIDER_SQL_MIN_LEN + SPIDER_SQL_OPEN_PAREN_LEN +
+          field_length + /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+          SPIDER_SQL_CLOSE_PAREN_LEN + SPIDER_SQL_COMMA_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_MIN_STR, SPIDER_SQL_MIN_LEN);
+        str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+        mysql_share->append_column_name(str, field->field_index);
+        str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+      } else {
+        if (str->reserve(field_length + /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+          SPIDER_SQL_COMMA_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        mysql_share->append_column_name(str, field->field_index);
+      }
+      str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+    }
+    str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  } else {
+#endif
+    table_name_pos = str->length() + mysql_share->key_select_pos[idx];
+    if (str->append(mysql_share->key_select[idx]))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  }
+#endif
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_minimum_select_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_minimum_select_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_minimum_select(str, sql_type);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_minimum_select(
+  spider_string *str,
+  ulong sql_type
+) {
+  TABLE *table = spider->get_table();
+  Field **field;
+  int field_length;
+  bool appended = FALSE;
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  st_select_lex *select_lex = NULL;
+  bool sgb = (spider->result_list.direct_aggregate &&
+    spider_param_strict_group_by(current_thd, (strict_group_by ? 1 : 0)) == 1);
+#endif
+  DBUG_ENTER("spider_mbase_handler::append_minimum_select");
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  if (sgb)
+  {
+    select_lex = spider_get_select_lex(spider);
+    JOIN *join = select_lex->join;
+    if (!(*join->sum_funcs) && !select_lex->group_list.elements)
+    {
+      select_lex = NULL;
+    }
+  }
+#endif
+  minimum_select_bitmap_create();
+  for (field = table->field; *field; field++)
+  {
+    if (minimum_select_bit_is_set((*field)->field_index))
+    {
+/*
+      spider_set_bit(minimum_select_bitmap, (*field)->field_index);
+*/
+      field_length =
+        mysql_share->column_name_str[(*field)->field_index].length();
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+      if (select_lex &&
+        !spider_db_check_select_colum_in_group(select_lex, *field))
+      {
+        if (str->reserve(SPIDER_SQL_MIN_LEN + SPIDER_SQL_OPEN_PAREN_LEN +
+          field_length + /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+          SPIDER_SQL_CLOSE_PAREN_LEN + SPIDER_SQL_COMMA_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_MIN_STR, SPIDER_SQL_MIN_LEN);
+        str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+        mysql_share->append_column_name(str, (*field)->field_index);
+        str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+      } else {
+#endif
+        if (str->reserve(field_length +
+          /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_COMMA_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        mysql_share->append_column_name(str, (*field)->field_index);
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+      }
+#endif
+      str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+      appended = TRUE;
+    }
+  }
+  if (appended)
+    str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  else {
+    if (str->reserve(SPIDER_SQL_ONE_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_ONE_STR, SPIDER_SQL_ONE_LEN);
+  }
+  DBUG_RETURN(append_from(str, sql_type, first_link_idx));
+}
+
+int spider_mbase_handler::append_table_select_with_alias(
+  spider_string *str,
+  const char *alias,
+  uint alias_length
+) {
+  TABLE *table = spider->get_table();
+  Field **field;
+  int field_length;
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  st_select_lex *select_lex = NULL;
+  bool sgb = (spider->result_list.direct_aggregate &&
+    spider_param_strict_group_by(current_thd, (strict_group_by ? 1 : 0)) == 1);
+#endif
+  DBUG_ENTER("spider_mbase_handler::append_table_select_with_alias");
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  if (sgb)
+  {
+    select_lex = spider_get_select_lex(spider);
+    JOIN *join = select_lex->join;
+    if (!(*join->sum_funcs) && !select_lex->group_list.elements)
+    {
+      select_lex = NULL;
+    }
+  }
+#endif
+  for (field = table->field; *field; field++)
+  {
+    field_length =
+      mysql_share->column_name_str[(*field)->field_index].length();
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+    if (select_lex &&
+      !spider_db_check_select_colum_in_group(select_lex, *field))
+    {
+      if (str->reserve(SPIDER_SQL_MIN_LEN + SPIDER_SQL_OPEN_PAREN_LEN +
+        alias_length + field_length + /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+        SPIDER_SQL_CLOSE_PAREN_LEN + SPIDER_SQL_COMMA_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_MIN_STR, SPIDER_SQL_MIN_LEN);
+      str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+      str->q_append(alias, alias_length);
+      mysql_share->append_column_name(str, (*field)->field_index);
+      str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+    } else {
+#endif
+      if (str->reserve(alias_length + field_length +
+        /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_COMMA_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(alias, alias_length);
+      mysql_share->append_column_name(str, (*field)->field_index);
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+    }
+#endif
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+  str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_key_select_with_alias(
+  spider_string *str,
+  const KEY *key_info,
+  const char *alias,
+  uint alias_length
+) {
+  KEY_PART_INFO *key_part;
+  Field *field;
+  uint part_num;
+  int field_length;
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  st_select_lex *select_lex = NULL;
+  bool sgb = (spider->result_list.direct_aggregate &&
+    spider_param_strict_group_by(current_thd, (strict_group_by ? 1 : 0)) == 1);
+#endif
+  DBUG_ENTER("spider_mbase_handler::append_key_select_with_alias");
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  if (sgb)
+  {
+    select_lex = spider_get_select_lex(spider);
+    JOIN *join = select_lex->join;
+    if (!(*join->sum_funcs) && !select_lex->group_list.elements)
+    {
+      select_lex = NULL;
+    }
+  }
+#endif
+  for (key_part = key_info->key_part, part_num = 0;
+    part_num < spider_user_defined_key_parts(key_info); key_part++, part_num++)
+  {
+    field = key_part->field;
+    field_length = mysql_share->column_name_str[field->field_index].length();
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+    if (select_lex &&
+      !spider_db_check_select_colum_in_group(select_lex, field))
+    {
+      if (str->reserve(SPIDER_SQL_MIN_LEN + SPIDER_SQL_OPEN_PAREN_LEN +
+        alias_length + field_length + /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+        SPIDER_SQL_CLOSE_PAREN_LEN + SPIDER_SQL_COMMA_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_MIN_STR, SPIDER_SQL_MIN_LEN);
+      str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+      str->q_append(alias, alias_length);
+      mysql_share->append_column_name(str, field->field_index);
+      str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+    } else {
+#endif
+      if (str->reserve(alias_length + field_length +
+        /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_COMMA_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(alias, alias_length);
+      mysql_share->append_column_name(str, field->field_index);
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+    }
+#endif
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+  str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_minimum_select_with_alias(
+  spider_string *str,
+  const char *alias,
+  uint alias_length
+) {
+  TABLE *table = spider->get_table();
+  Field **field;
+  int field_length;
+  bool appended = FALSE;
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  st_select_lex *select_lex = NULL;
+  bool sgb = (spider->result_list.direct_aggregate &&
+    spider_param_strict_group_by(current_thd, (strict_group_by ? 1 : 0)) == 1);
+#endif
+  DBUG_ENTER("spider_mbase_handler::append_minimum_select_with_alias");
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  if (sgb)
+  {
+    select_lex = spider_get_select_lex(spider);
+    JOIN *join = select_lex->join;
+    if (!(*join->sum_funcs) && !select_lex->group_list.elements)
+    {
+      select_lex = NULL;
+    }
+  }
+#endif
+  minimum_select_bitmap_create();
+  for (field = table->field; *field; field++)
+  {
+    if (minimum_select_bit_is_set((*field)->field_index))
+    {
+/*
+      spider_set_bit(minimum_select_bitmap, (*field)->field_index);
+*/
+      field_length =
+        mysql_share->column_name_str[(*field)->field_index].length();
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+      if (select_lex &&
+        !spider_db_check_select_colum_in_group(select_lex, *field))
+      {
+        if (str->reserve(SPIDER_SQL_MIN_LEN + SPIDER_SQL_OPEN_PAREN_LEN +
+          alias_length + field_length + /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+          SPIDER_SQL_CLOSE_PAREN_LEN + SPIDER_SQL_COMMA_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_MIN_STR, SPIDER_SQL_MIN_LEN);
+        str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+        str->q_append(alias, alias_length);
+        mysql_share->append_column_name(str, (*field)->field_index);
+        str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+      } else {
+#endif
+        if (str->reserve(alias_length + field_length +
+          /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_COMMA_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(alias, alias_length);
+        mysql_share->append_column_name(str, (*field)->field_index);
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+      }
+#endif
+      str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+      appended = TRUE;
+    }
+  }
+  if (appended)
+    str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  else {
+    if (str->reserve(SPIDER_SQL_ONE_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_ONE_STR, SPIDER_SQL_ONE_LEN);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_select_columns_with_alias(
+  spider_string *str,
+  const char *alias,
+  uint alias_length
+) {
+  int error_num;
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  DBUG_ENTER("spider_mbase_handler::append_select_columns_with_alias");
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  if (
+    result_list->direct_aggregate &&
+    (error_num = append_sum_select(str, alias, alias_length))
+  )
+    DBUG_RETURN(error_num);
+#endif
+  if ((error_num = append_match_select(str, alias, alias_length)))
+    DBUG_RETURN(error_num);
+  if (!spider->select_column_mode)
+  {
+    if (result_list->keyread)
+      DBUG_RETURN(append_key_select_with_alias(
+        str, result_list->key_info, alias, alias_length));
+    else
+      DBUG_RETURN(append_table_select_with_alias(
+        str, alias, alias_length));
+  }
+  DBUG_RETURN(append_minimum_select_with_alias(str, alias, alias_length));
+}
+
+int spider_mbase_handler::append_hint_after_table_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_hint_after_table_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &sql;
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      str = &update_sql;
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      str = &ha_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_hint_after_table(str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_hint_after_table(
+  spider_string *str
+) {
+  int error_num;
+  DBUG_ENTER("spider_mbase_handler::append_hint_after_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (
+    mysql_share->key_hint &&
+    (error_num = spider_db_append_hint_after_table(spider,
+      str, &mysql_share->key_hint[spider->active_index]))
+  )
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  DBUG_RETURN(0);
+}
+
+void spider_mbase_handler::set_where_pos(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_mbase_handler::set_where_pos");
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      where_pos = sql.length();
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      where_pos = update_sql.length();
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      ha_read_pos = ha_sql.length();
+      break;
+    default:
+      break;
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_mbase_handler::set_where_to_pos(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_mbase_handler::set_where_to_pos");
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      sql.length(where_pos);
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      update_sql.length(where_pos);
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      ha_sql.length(ha_read_pos);
+      break;
+    default:
+      break;
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_mbase_handler::check_item_type(
+  Item *item
+) {
+  int error_num;
+  DBUG_ENTER("spider_mbase_handler::check_item_type");
+  DBUG_PRINT("info",("spider this=%p", this));
+  error_num = spider_db_print_item_type(item, NULL, spider, NULL, NULL, 0,
+    dbton_id, FALSE, NULL);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_values_connector_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_values_connector_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &tmp_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_values_connector(str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_values_connector(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_mbase_handler::append_values_connector");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN +
+    SPIDER_SQL_COMMA_LEN + SPIDER_SQL_OPEN_PAREN_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+  str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_values_terminator_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_values_terminator_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &tmp_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_values_terminator(str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_values_terminator(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_mbase_handler::append_values_terminator");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str->length(str->length() -
+    SPIDER_SQL_COMMA_LEN - SPIDER_SQL_OPEN_PAREN_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_union_table_connector_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_union_table_connector_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &tmp_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_union_table_connector(str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_union_table_connector(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_mbase_handler::append_union_table_connector");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve((SPIDER_SQL_SPACE_LEN * 2) + SPIDER_SQL_UNION_ALL_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+  str->q_append(SPIDER_SQL_UNION_ALL_STR, SPIDER_SQL_UNION_ALL_LEN);
+  str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_union_table_terminator_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_union_table_terminator_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_union_table_terminator(str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_union_table_terminator(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_mbase_handler::append_union_table_terminator");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str->length(str->length() -
+    ((SPIDER_SQL_SPACE_LEN * 2) + SPIDER_SQL_UNION_ALL_LEN));
+  str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+  str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+  table_name_pos = str->length() + SPIDER_SQL_SPACE_LEN + SPIDER_SQL_A_LEN +
+    SPIDER_SQL_COMMA_LEN;
+  if (str->reserve(tmp_sql.length() - SPIDER_SQL_FROM_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(tmp_sql.ptr() + SPIDER_SQL_FROM_LEN,
+    tmp_sql.length() - SPIDER_SQL_FROM_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_key_column_values_part(
+  const key_range *start_key,
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_key_column_values_part");
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &tmp_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_key_column_values(str, start_key);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_key_column_values(
+  spider_string *str,
+  const key_range *start_key
+) {
+  int error_num;
+  const uchar *ptr;
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  SPIDER_SHARE *share = spider->share;
+  KEY *key_info = result_list->key_info;
+  uint length;
+  uint store_length;
+  key_part_map full_key_part_map =
+    make_prev_keypart_map(spider_user_defined_key_parts(key_info));
+  key_part_map start_key_part_map;
+  KEY_PART_INFO *key_part;
+  Field *field;
+  DBUG_ENTER("spider_mbase_handler::append_key_column_values");
+  start_key_part_map = start_key->keypart_map & full_key_part_map;
+  DBUG_PRINT("info", ("spider spider_user_defined_key_parts=%u",
+    spider_user_defined_key_parts(key_info)));
+  DBUG_PRINT("info", ("spider full_key_part_map=%lu", full_key_part_map));
+  DBUG_PRINT("info", ("spider start_key_part_map=%lu", start_key_part_map));
+
+  if (!start_key_part_map)
+    DBUG_RETURN(0);
+
+  for (
+    key_part = key_info->key_part,
+    length = 0;
+    start_key_part_map;
+    start_key_part_map >>= 1,
+    key_part++,
+    length += store_length
+  ) {
+    store_length = key_part->store_length;
+    ptr = start_key->key + length;
+    field = key_part->field;
+    if ((error_num = spider_db_append_null_value(str, key_part, &ptr)))
+    {
+      if (error_num > 0)
+        DBUG_RETURN(error_num);
+    } else {
+      if (spider_db_mbase_utility->append_column_value(spider, str, field, ptr,
+        share->access_charset))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+
+    if (str->reserve(SPIDER_SQL_COMMA_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+  str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_key_column_values_with_name_part(
+  const key_range *start_key,
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_key_column_values_with_name_part");
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &tmp_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_key_column_values_with_name(str, start_key);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_key_column_values_with_name(
+  spider_string *str,
+  const key_range *start_key
+) {
+  int error_num;
+  const uchar *ptr;
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  SPIDER_SHARE *share = spider->share;
+  KEY *key_info = result_list->key_info;
+  uint length;
+  uint key_name_length, key_count;
+  uint store_length;
+  key_part_map full_key_part_map =
+    make_prev_keypart_map(spider_user_defined_key_parts(key_info));
+  key_part_map start_key_part_map;
+  KEY_PART_INFO *key_part;
+  Field *field;
+  char tmp_buf[MAX_FIELD_WIDTH];
+  DBUG_ENTER("spider_mbase_handler::append_key_column_values_with_name");
+  start_key_part_map = start_key->keypart_map & full_key_part_map;
+  DBUG_PRINT("info", ("spider spider_user_defined_key_parts=%u",
+    spider_user_defined_key_parts(key_info)));
+  DBUG_PRINT("info", ("spider full_key_part_map=%lu", full_key_part_map));
+  DBUG_PRINT("info", ("spider start_key_part_map=%lu", start_key_part_map));
+
+  if (!start_key_part_map)
+    DBUG_RETURN(0);
+
+  for (
+    key_part = key_info->key_part,
+    length = 0,
+    key_count = 0;
+    start_key_part_map;
+    start_key_part_map >>= 1,
+    key_part++,
+    length += store_length,
+    key_count++
+  ) {
+    store_length = key_part->store_length;
+    ptr = start_key->key + length;
+    field = key_part->field;
+    if ((error_num = spider_db_append_null_value(str, key_part, &ptr)))
+    {
+      if (error_num > 0)
+        DBUG_RETURN(error_num);
+    } else {
+      if (spider_db_mbase_utility->append_column_value(spider, str, field, ptr,
+        share->access_charset))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+
+    key_name_length = my_sprintf(tmp_buf, (tmp_buf, "c%u", key_count));
+    if (str->reserve(SPIDER_SQL_SPACE_LEN + key_name_length +
+      SPIDER_SQL_COMMA_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+    str->q_append(tmp_buf, key_name_length);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+  str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_key_where_part(
+  const key_range *start_key,
+  const key_range *end_key,
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str, *str_part = NULL, *str_part2 = NULL;
+  bool set_order;
+  DBUG_ENTER("spider_mbase_handler::append_key_where_part");
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      set_order = FALSE;
+      break;
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &tmp_sql;
+      set_order = FALSE;
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      str = &update_sql;
+      set_order = FALSE;
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      str = &ha_sql;
+      ha_read_pos = str->length();
+      str_part = &sql_part;
+      str_part2 = &sql_part2;
+      str_part->length(0);
+      str_part2->length(0);
+      set_order = TRUE;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_key_where(str, str_part, str_part2, start_key, end_key,
+    sql_type, set_order);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_key_where(
+  spider_string *str,
+  spider_string *str_part,
+  spider_string *str_part2,
+  const key_range *start_key,
+  const key_range *end_key,
+  ulong sql_type,
+  bool set_order
+) {
+  int error_num;
+  DBUG_ENTER("spider_mbase_handler::append_key_where");
+  error_num = spider_db_append_key_where_internal(str, str_part, str_part2,
+    start_key, end_key, spider, set_order, sql_type,
+    dbton_id);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_is_null_part(
+  ulong sql_type,
+  KEY_PART_INFO *key_part,
+  const key_range *key,
+  const uchar **ptr,
+  bool key_eq,
+  bool tgt_final
+) {
+  int error_num;
+  spider_string *str, *str_part = NULL, *str_part2 = NULL;
+  DBUG_ENTER("spider_mbase_handler::append_is_null_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &sql;
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      str = &update_sql;
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      str = &ha_sql;
+      str_part = &sql_part;
+      str_part2 = &sql_part2;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_is_null(sql_type, str, str_part, str_part2,
+    key_part, key, ptr, key_eq, tgt_final);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_is_null(
+  ulong sql_type,
+  spider_string *str,
+  spider_string *str_part,
+  spider_string *str_part2,
+  KEY_PART_INFO *key_part,
+  const key_range *key,
+  const uchar **ptr,
+  bool key_eq,
+  bool tgt_final
+) {
+  DBUG_ENTER("spider_mbase_handler::append_is_null");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider key_eq=%s", key_eq ? "TRUE" : "FALSE"));
+  if (key_part->null_bit)
+  {
+    if (*(*ptr)++)
+    {
+      if (sql_type == SPIDER_SQL_TYPE_HANDLER)
+      {
+        if (
+          key_eq ||
+          key->flag == HA_READ_KEY_EXACT ||
+          key->flag == HA_READ_KEY_OR_NEXT
+        ) {
+#ifdef SPIDER_HANDLER_SUPPORT_MULTIPLE_KEY_PARTS
+          if (tgt_final)
+          {
+            if (str->reserve(SPIDER_SQL_EQUAL_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+          }
+          str = str_part;
+          if (str->reserve(SPIDER_SQL_NULL_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(SPIDER_SQL_NULL_STR, SPIDER_SQL_NULL_LEN);
+#else
+          if (str_part->length() == SPIDER_SQL_OPEN_PAREN_LEN)
+          {
+            if (str->reserve(SPIDER_SQL_EQUAL_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+            str = str_part;
+            if (str->reserve(SPIDER_SQL_NULL_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(SPIDER_SQL_NULL_STR, SPIDER_SQL_NULL_LEN);
+          }
+#endif
+        } else {
+#ifdef SPIDER_HANDLER_SUPPORT_MULTIPLE_KEY_PARTS
+          if (str_part->length() == SPIDER_SQL_OPEN_PAREN_LEN)
+          {
+            str = str_part;
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+            ha_next_pos = str->length();
+            if (str->reserve(SPIDER_SQL_FIRST_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(SPIDER_SQL_FIRST_STR, SPIDER_SQL_FIRST_LEN);
+            spider->result_list.ha_read_kind = 1;
+          } else if (tgt_final)
+          {
+            if (str->reserve(SPIDER_SQL_GT_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(SPIDER_SQL_GT_STR, SPIDER_SQL_GT_LEN);
+            str = str_part;
+            if (str->reserve(SPIDER_SQL_NULL_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(SPIDER_SQL_NULL_STR, SPIDER_SQL_NULL_LEN);
+          }
+#else
+          if (str_part->length() == SPIDER_SQL_OPEN_PAREN_LEN)
+          {
+            str = str_part;
+            /* first index column */
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+            ha_next_pos = str->length();
+            if (str->reserve(SPIDER_SQL_FIRST_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(SPIDER_SQL_FIRST_STR, SPIDER_SQL_FIRST_LEN);
+            spider->result_list.ha_read_kind = 1;
+          }
+#endif
+        }
+        str = str_part2;
+      }
+      if (
+        key_eq ||
+        key->flag == HA_READ_KEY_EXACT ||
+        key->flag == HA_READ_KEY_OR_NEXT
+      ) {
+        if (str->reserve(SPIDER_SQL_IS_NULL_LEN +
+          /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+          mysql_share->column_name_str[key_part->field->field_index].length()))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        mysql_share->append_column_name(str, key_part->field->field_index);
+        str->q_append(SPIDER_SQL_IS_NULL_STR, SPIDER_SQL_IS_NULL_LEN);
+      } else {
+        if (str->reserve(SPIDER_SQL_IS_NOT_NULL_LEN +
+          /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+          mysql_share->column_name_str[key_part->field->field_index].length()))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        mysql_share->append_column_name(str, key_part->field->field_index);
+        str->q_append(SPIDER_SQL_IS_NOT_NULL_STR, SPIDER_SQL_IS_NOT_NULL_LEN);
+      }
+      DBUG_RETURN(-1);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_where_terminator_part(
+  ulong sql_type,
+  bool set_order,
+  int key_count
+) {
+  int error_num;
+  spider_string *str, *str_part = NULL, *str_part2 = NULL;
+  DBUG_ENTER("spider_mbase_handler::append_where_terminator_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &sql;
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      str = &update_sql;
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      str = &ha_sql;
+      str_part = &sql_part;
+      str_part2 = &sql_part2;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_where_terminator(sql_type, str, str_part, str_part2,
+    set_order, key_count);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_where_terminator(
+  ulong sql_type,
+  spider_string *str,
+  spider_string *str_part,
+  spider_string *str_part2,
+  bool set_order,
+  int key_count
+) {
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  DBUG_ENTER("spider_mbase_handler::append_where_terminator");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql_type != SPIDER_SQL_TYPE_HANDLER)
+  {
+    str->length(str->length() - SPIDER_SQL_AND_LEN);
+    if (!set_order)
+      result_list->key_order = key_count;
+  } else {
+    str_part2->length(str_part2->length() - SPIDER_SQL_AND_LEN);
+
+#ifdef SPIDER_HANDLER_SUPPORT_MULTIPLE_KEY_PARTS
+    str_part->length(str_part->length() - SPIDER_SQL_COMMA_LEN);
+#endif
+    if (!result_list->ha_read_kind)
+      str_part->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+        SPIDER_SQL_CLOSE_PAREN_LEN);
+    if (str->append(*str_part))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    uint clause_length = str->length() - ha_next_pos;
+    if (clause_length < SPIDER_SQL_NEXT_LEN)
+    {
+      int roop_count;
+      clause_length = SPIDER_SQL_NEXT_LEN - clause_length;
+      if (str->reserve(clause_length))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      for (roop_count = 0; roop_count < (int) clause_length; roop_count++)
+        str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_match_where_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_match_where_part");
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_ASSERT(0);
+      DBUG_RETURN(0);
+  }
+  error_num = append_match_where(str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_match_where(
+  spider_string *str
+) {
+  int error_num;
+  bool first = TRUE;
+  st_spider_ft_info *ft_info = spider->ft_first;
+  DBUG_ENTER("spider_mbase_handler::append_match_where");
+  if (spider->ft_current)
+  {
+    while (TRUE)
+    {
+      if (ft_info->used_in_where)
+      {
+        if (first)
+        {
+          if (str->reserve(SPIDER_SQL_WHERE_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(SPIDER_SQL_WHERE_STR, SPIDER_SQL_WHERE_LEN);
+          first = FALSE;
+        }
+        if ((error_num = append_match_against(str, ft_info, NULL, 0)))
+          DBUG_RETURN(error_num);
+        if (str->reserve(SPIDER_SQL_AND_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_AND_STR, SPIDER_SQL_AND_LEN);
+      }
+
+      if (ft_info == spider->ft_current)
+        break;
+      ft_info = ft_info->next;
+    }
+    if (!first)
+      str->length(str->length() - SPIDER_SQL_AND_LEN);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_update_where(
+  spider_string *str,
+  const TABLE *table,
+  my_ptrdiff_t ptr_diff
+) {
+  uint field_name_length;
+  Field **field;
+  THD *thd = spider->wide_handler->trx->thd;
+  SPIDER_SHARE *share = spider->share;
+  bool no_pk = (table->s->primary_key == MAX_KEY);
+  DBUG_ENTER("spider_mbase_handler::append_update_where");
+  DBUG_PRINT("info", ("spider table->s->primary_key=%s",
+    table->s->primary_key != MAX_KEY ? "TRUE" : "FALSE"));
+  uint str_len_bakup = str->length();
+  if (str->reserve(SPIDER_SQL_WHERE_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_WHERE_STR, SPIDER_SQL_WHERE_LEN);
+
+  if (
+    no_pk ||
+    spider_param_use_cond_other_than_pk_for_update(thd)
+  ) {
+    for (field = table->field; *field; field++)
+    {
+      if (
+        no_pk ||
+        bitmap_is_set(table->read_set, (*field)->field_index)
+      ) {
+        field_name_length =
+          mysql_share->column_name_str[(*field)->field_index].length();
+        if ((*field)->is_null(ptr_diff))
+        {
+          if (str->reserve(field_name_length +
+            /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+            SPIDER_SQL_IS_NULL_LEN + SPIDER_SQL_AND_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          mysql_share->append_column_name(str, (*field)->field_index);
+          str->q_append(SPIDER_SQL_IS_NULL_STR, SPIDER_SQL_IS_NULL_LEN);
+        } else {
+          if (str->reserve(field_name_length +
+            /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+            SPIDER_SQL_EQUAL_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          mysql_share->append_column_name(str, (*field)->field_index);
+          str->q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+          (*field)->move_field_offset(ptr_diff);
+          if (
+            spider_db_mbase_utility->
+              append_column_value(spider, str, *field, NULL,
+                share->access_charset) ||
+            str->reserve(SPIDER_SQL_AND_LEN)
+          )
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          (*field)->move_field_offset(-ptr_diff);
+        }
+        str->q_append(SPIDER_SQL_AND_STR, SPIDER_SQL_AND_LEN);
+      }
+    }
+  } else {
+    KEY *key_info = &table->key_info[table->s->primary_key];
+    KEY_PART_INFO *key_part;
+    uint part_num;
+    for (
+      key_part = key_info->key_part, part_num = 0;
+      part_num < spider_user_defined_key_parts(key_info);
+      key_part++, part_num++
+    ) {
+      field = &key_part->field;
+      field_name_length =
+        mysql_share->column_name_str[(*field)->field_index].length();
+      if ((*field)->is_null(ptr_diff))
+      {
+        if (str->reserve(field_name_length +
+          /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+          SPIDER_SQL_IS_NULL_LEN + SPIDER_SQL_AND_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        mysql_share->append_column_name(str, (*field)->field_index);
+        str->q_append(SPIDER_SQL_IS_NULL_STR, SPIDER_SQL_IS_NULL_LEN);
+      } else {
+        if (str->reserve(field_name_length +
+          /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+          SPIDER_SQL_EQUAL_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        mysql_share->append_column_name(str, (*field)->field_index);
+        str->q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+        (*field)->move_field_offset(ptr_diff);
+        if (
+          spider_db_mbase_utility->
+            append_column_value(spider, str, *field, NULL,
+              share->access_charset) ||
+          str->reserve(SPIDER_SQL_AND_LEN)
+        )
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        (*field)->move_field_offset(-ptr_diff);
+      }
+      str->q_append(SPIDER_SQL_AND_STR, SPIDER_SQL_AND_LEN);
+    }
+  }
+  if (str->length() == str_len_bakup + SPIDER_SQL_WHERE_LEN)
+  {
+    /* no condition */
+    str->length(str_len_bakup);
+  } else {
+    str->length(str->length() - SPIDER_SQL_AND_LEN);
+  }
+  if (str->reserve(SPIDER_SQL_LIMIT1_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_LIMIT1_STR, SPIDER_SQL_LIMIT1_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_condition_part(
+  const char *alias,
+  uint alias_length,
+  ulong sql_type,
+  bool test_flg
+) {
+  int error_num;
+  spider_string *str;
+  bool start_where = FALSE;
+  DBUG_ENTER("spider_mbase_handler::append_condition_part");
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      if (test_flg)
+      {
+        str = NULL;
+      } else {
+        str = &sql;
+        start_where = ((int) str->length() == where_pos);
+      }
+      break;
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      if (test_flg)
+      {
+        str = NULL;
+      } else {
+        str = &tmp_sql;
+        start_where = ((int) str->length() == where_pos);
+      }
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      if (test_flg)
+      {
+        str = NULL;
+      } else {
+        str = &update_sql;
+        start_where = ((int) str->length() == where_pos);
+      }
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      if (test_flg)
+      {
+        str = NULL;
+      } else {
+        str = &ha_sql;
+        start_where = TRUE;
+        if (spider->active_index == MAX_KEY)
+        {
+          set_where_pos(SPIDER_SQL_TYPE_HANDLER);
+          if (str->reserve(SPIDER_SQL_READ_LEN + SPIDER_SQL_FIRST_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(SPIDER_SQL_READ_STR, SPIDER_SQL_READ_LEN);
+          ha_next_pos = str->length();
+          str->q_append(SPIDER_SQL_FIRST_STR, SPIDER_SQL_FIRST_LEN);
+          sql_part2.length(0);
+        }
+        ha_where_pos = str->length();
+
+        if (
+          spider->wide_handler->sql_command == SQLCOM_HA_READ ||
+          !spider->result_list.use_both_key
+        ) {
+          if (sql_part2.length())
+          {
+            str->append(sql_part2);
+            start_where = FALSE;
+          }
+        } else {
+          DBUG_RETURN(0);
+        }
+      }
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_condition(str, alias, alias_length, start_where,
+    sql_type);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_condition(
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  bool start_where,
+  ulong sql_type
+) {
+  int error_num, restart_pos = 0, start_where_pos;
+  SPIDER_CONDITION *tmp_cond = spider->wide_handler->condition;
+  DBUG_ENTER("spider_mbase_handler::append_condition");
+  if (str && start_where)
+  {
+    start_where_pos = str->length();
+  } else {
+    start_where_pos = 0;
+  }
+
+  if (spider->is_clone && !tmp_cond)
+  {
+    tmp_cond = spider->pt_clone_source_handler->wide_handler->condition;
+  }
+
+  while (tmp_cond)
+  {
+    if (str)
+    {
+      restart_pos = str->length();
+      if (start_where)
+      {
+        if (str->reserve(SPIDER_SQL_WHERE_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_WHERE_STR, SPIDER_SQL_WHERE_LEN);
+        start_where = FALSE;
+      } else {
+        if (str->reserve(SPIDER_SQL_AND_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_AND_STR, SPIDER_SQL_AND_LEN);
+      }
+    }
+    if ((error_num = spider_db_print_item_type(
+      (Item *) tmp_cond->cond, NULL, spider, str, alias, alias_length,
+      dbton_id, FALSE, NULL)))
+    {
+      if (str && error_num == ER_SPIDER_COND_SKIP_NUM)
+      {
+        DBUG_PRINT("info",("spider COND skip"));
+        str->length(restart_pos);
+        start_where = (restart_pos == start_where_pos);
+      } else
+        DBUG_RETURN(error_num);
+    }
+    tmp_cond = tmp_cond->next;
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_match_against_part(
+  ulong sql_type,
+  st_spider_ft_info *ft_info,
+  const char *alias,
+  uint alias_length
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_match_against_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_match_against(str, ft_info, alias, alias_length);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_match_against(
+  spider_string *str,
+  st_spider_ft_info  *ft_info,
+  const char *alias,
+  uint alias_length
+) {
+  SPIDER_SHARE *share = spider->share;
+  TABLE *table = spider->get_table();
+  String *ft_init_key;
+  KEY *key_info;
+  uint key_name_length;
+  int key_count;
+  KEY_PART_INFO *key_part;
+  Field *field;
+  DBUG_ENTER("spider_mbase_handler::append_match_against");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_MATCH_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_MATCH_STR, SPIDER_SQL_MATCH_LEN);
+
+  ft_init_key = ft_info->key;
+  key_info = &table->key_info[ft_info->inx];
+  DBUG_PRINT("info", ("spider spider_user_defined_key_parts=%u",
+    spider_user_defined_key_parts(key_info)));
+
+  for (
+    key_part = key_info->key_part,
+    key_count = 0;
+    key_count < (int) spider_user_defined_key_parts(key_info);
+    key_part++,
+    key_count++
+  ) {
+    field = key_part->field;
+    key_name_length =
+      mysql_share->column_name_str[field->field_index].length();
+    if (alias_length)
+    {
+      if (str->reserve(alias_length + key_name_length +
+        /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_COMMA_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(alias, alias_length);
+    } else {
+      if (str->reserve(key_name_length +
+        /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_COMMA_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    mysql_share->append_column_name(str, field->field_index);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+  str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  if (str->reserve(SPIDER_SQL_AGAINST_LEN + SPIDER_SQL_VALUE_QUOTE_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_AGAINST_STR, SPIDER_SQL_AGAINST_LEN);
+  str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+
+  char buf[MAX_FIELD_WIDTH];
+  spider_string tmp_str(buf, MAX_FIELD_WIDTH, share->access_charset);
+  tmp_str.init_calc_mem(116);
+  tmp_str.length(0);
+  if (
+    tmp_str.append(ft_init_key->ptr(), ft_init_key->length(),
+      ft_init_key->charset()) ||
+    str->reserve(tmp_str.length() * 2) ||
+    spider_db_mbase_utility->append_escaped_util(str, tmp_str.get_str())
+  )
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->mem_calc();
+
+  if (str->reserve(
+    SPIDER_SQL_VALUE_QUOTE_LEN + SPIDER_SQL_CLOSE_PAREN_LEN +
+    ((ft_info->flags & FT_BOOL) ? SPIDER_SQL_IN_BOOLEAN_MODE_LEN : 0) +
+    ((ft_info->flags & FT_EXPAND) ?
+      SPIDER_SQL_WITH_QUERY_EXPANSION_LEN : 0)
+  ))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+  if (ft_info->flags & FT_BOOL)
+    str->q_append(SPIDER_SQL_IN_BOOLEAN_MODE_STR,
+      SPIDER_SQL_IN_BOOLEAN_MODE_LEN);
+  if (ft_info->flags & FT_EXPAND)
+    str->q_append(SPIDER_SQL_WITH_QUERY_EXPANSION_STR,
+      SPIDER_SQL_WITH_QUERY_EXPANSION_LEN);
+  str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_match_select_part(
+  ulong sql_type,
+  const char *alias,
+  uint alias_length
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_match_select_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_match_select(str, alias, alias_length);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_match_select(
+  spider_string *str,
+  const char *alias,
+  uint alias_length
+) {
+  int error_num;
+  DBUG_ENTER("spider_mbase_handler::append_match_select");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (spider->ft_current)
+  {
+    st_spider_ft_info *ft_info = spider->ft_first;
+    while (TRUE)
+    {
+      if ((error_num = append_match_against(str, ft_info,
+        alias, alias_length)))
+        DBUG_RETURN(error_num);
+      if (str->reserve(SPIDER_SQL_COMMA_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+      if (ft_info == spider->ft_current)
+        break;
+      ft_info = ft_info->next;
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+int spider_mbase_handler::append_sum_select_part(
+  ulong sql_type,
+  const char *alias,
+  uint alias_length
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_sum_select_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_sum_select(str, alias, alias_length);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_sum_select(
+  spider_string *str,
+  const char *alias,
+  uint alias_length
+) {
+  int error_num;
+  st_select_lex *select_lex;
+  DBUG_ENTER("spider_mbase_handler::append_sum_select");
+  DBUG_PRINT("info",("spider this=%p", this));
+  select_lex = spider_get_select_lex(spider);
+  JOIN *join = select_lex->join;
+  Item_sum **item_sum_ptr;
+  for (item_sum_ptr = join->sum_funcs; *item_sum_ptr; ++item_sum_ptr)
+  {
+    if ((error_num = spider_db_mbase_utility->open_item_sum_func(*item_sum_ptr,
+      spider, str, alias, alias_length, FALSE, NULL)))
+    {
+      DBUG_RETURN(error_num);
+    }
+    if (str->reserve(SPIDER_SQL_COMMA_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+  DBUG_RETURN(0);
+}
+#endif
+
+void spider_mbase_handler::set_order_pos(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_mbase_handler::set_order_pos");
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      order_pos = sql.length();
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      order_pos = update_sql.length();
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      ha_next_pos = ha_sql.length();
+      break;
+    default:
+      DBUG_ASSERT(0);
+      break;
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_mbase_handler::set_order_to_pos(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_mbase_handler::set_order_to_pos");
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      sql.length(order_pos);
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      update_sql.length(order_pos);
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      ha_sql.length(ha_next_pos);
+      break;
+    default:
+      DBUG_ASSERT(0);
+      break;
+  }
+  DBUG_VOID_RETURN;
+}
+
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+int spider_mbase_handler::append_group_by_part(
+  const char *alias,
+  uint alias_length,
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_group_by_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &sql;
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      str = &update_sql;
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      str = &ha_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_group_by(str, alias, alias_length);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_group_by(
+  spider_string *str,
+  const char *alias,
+  uint alias_length
+) {
+  int error_num;
+  st_select_lex *select_lex;
+  DBUG_ENTER("spider_mbase_handler::append_group_by");
+  DBUG_PRINT("info",("spider this=%p", this));
+  select_lex = spider_get_select_lex(spider);
+  ORDER *group = (ORDER *) select_lex->group_list.first;
+  if (group)
+  {
+    if (str->reserve(SPIDER_SQL_GROUP_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_GROUP_STR, SPIDER_SQL_GROUP_LEN);
+    for (; group; group = group->next)
+    {
+      if ((error_num = spider_db_print_item_type((*group->item), NULL, spider,
+        str, alias, alias_length, dbton_id, FALSE, NULL)))
+      {
+        DBUG_RETURN(error_num);
+      }
+      if (str->reserve(SPIDER_SQL_COMMA_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+    }
+    str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  }
+  DBUG_RETURN(0);
+}
+#endif
+
+int spider_mbase_handler::append_key_order_for_merge_with_alias_part(
+  const char *alias,
+  uint alias_length,
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_key_order_for_merge_with_alias_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &sql;
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      str = &update_sql;
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      str = &ha_sql;
+      ha_limit_pos = ha_sql.length();
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_key_order_for_merge_with_alias(str, alias, alias_length);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_key_order_for_merge_with_alias(
+  spider_string *str,
+  const char *alias,
+  uint alias_length
+) {
+  /* sort for index merge */
+  TABLE *table = spider->get_table();
+  int length;
+  Field *field;
+  uint key_name_length;
+  DBUG_ENTER("spider_mbase_handler::append_key_order_for_merge_with_alias");
+  DBUG_PRINT("info",("spider this=%p", this));
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  if (spider->result_list.direct_aggregate)
+  {
+    int error_num;
+    if ((error_num = append_group_by(str, alias, alias_length)))
+      DBUG_RETURN(error_num);
+  }
+#endif
+  if (table->s->primary_key < MAX_KEY)
+  {
+    /* sort by primary key */
+    KEY *key_info = &table->key_info[table->s->primary_key];
+    KEY_PART_INFO *key_part;
+    for (
+      key_part = key_info->key_part,
+      length = 1;
+      length <= (int) spider_user_defined_key_parts(key_info);
+      key_part++,
+      length++
+    ) {
+      field = key_part->field;
+      key_name_length =
+        mysql_share->column_name_str[field->field_index].length();
+      if (length == 1)
+      {
+        if (str->reserve(SPIDER_SQL_ORDER_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_ORDER_STR, SPIDER_SQL_ORDER_LEN);
+      }
+      if (str->reserve(alias_length + key_name_length +
+        /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_COMMA_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(alias, alias_length);
+      mysql_share->append_column_name(str, field->field_index);
+      str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+    }
+    if (length > 1)
+    {
+      str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+    }
+  } else {
+    /* sort by all columns */
+    Field **fieldp;
+    for (
+      fieldp = table->field, length = 1;
+      *fieldp;
+      fieldp++, length++
+    ) {
+      key_name_length =
+        mysql_share->column_name_str[(*fieldp)->field_index].length();
+      if (length == 1)
+      {
+        if (str->reserve(SPIDER_SQL_ORDER_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_ORDER_STR, SPIDER_SQL_ORDER_LEN);
+      }
+      if (str->reserve(alias_length + key_name_length +
+        /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_COMMA_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(alias, alias_length);
+      mysql_share->append_column_name(str, (*fieldp)->field_index);
+      str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+    }
+    if (length > 1)
+    {
+      str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+    }
+  }
+  limit_pos = str->length();
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_key_order_for_direct_order_limit_with_alias_part(
+  const char *alias,
+  uint alias_length,
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_key_order_for_direct_order_limit_with_alias_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &sql;
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      str = &update_sql;
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      str = &ha_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_key_order_for_direct_order_limit_with_alias(
+    str, alias, alias_length);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_key_order_for_direct_order_limit_with_alias(
+  spider_string *str,
+  const char *alias,
+  uint alias_length
+) {
+  int error_num;
+  ORDER *order;
+  st_select_lex *select_lex;
+  longlong select_limit;
+  longlong offset_limit;
+  DBUG_ENTER("spider_mbase_handler::append_key_order_for_direct_order_limit_with_alias");
+  DBUG_PRINT("info",("spider this=%p", this));
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  if (spider->result_list.direct_aggregate)
+  {
+    if ((error_num = append_group_by(str, alias, alias_length)))
+      DBUG_RETURN(error_num);
+  }
+#endif
+  spider_get_select_limit(spider, &select_lex, &select_limit,
+    &offset_limit);
+  if (select_lex->order_list.first)
+  {
+    if (str->reserve(SPIDER_SQL_ORDER_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_ORDER_STR, SPIDER_SQL_ORDER_LEN);
+    for (order = (ORDER *) select_lex->order_list.first; order;
+      order = order->next)
+    {
+      if ((error_num =
+        spider_db_print_item_type((*order->item), NULL, spider, str, alias,
+          alias_length, dbton_id, FALSE, NULL)))
+      {
+        DBUG_PRINT("info",("spider error=%d", error_num));
+        DBUG_RETURN(error_num);
+      }
+      if (SPIDER_order_direction_is_asc(order))
+      {
+        if (str->reserve(SPIDER_SQL_COMMA_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+      } else {
+        if (str->reserve(SPIDER_SQL_DESC_LEN + SPIDER_SQL_COMMA_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_DESC_STR, SPIDER_SQL_DESC_LEN);
+        str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+      }
+    }
+    str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  }
+  limit_pos = str->length();
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_key_order_with_alias_part(
+  const char *alias,
+  uint alias_length,
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_key_order_with_alias_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &sql;
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      str = &update_sql;
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      str = &ha_sql;
+      error_num = append_key_order_for_handler(str, alias, alias_length);
+      DBUG_RETURN(error_num);
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_key_order_with_alias(str, alias, alias_length);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_key_order_for_handler(
+  spider_string *str,
+  const char *alias,
+  uint alias_length
+) {
+  DBUG_ENTER("spider_mbase_handler::append_key_order_for_handler");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider ha_next_pos=%d", ha_next_pos));
+  DBUG_PRINT("info",("spider ha_where_pos=%d", ha_where_pos));
+  str->q_append(alias, alias_length);
+  memset((char *) str->ptr() + str->length(), ' ',
+    ha_where_pos - ha_next_pos - alias_length);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_key_order_with_alias(
+  spider_string *str,
+  const char *alias,
+  uint alias_length
+) {
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  KEY *key_info = result_list->key_info;
+  int length;
+  KEY_PART_INFO *key_part;
+  Field *field;
+  uint key_name_length;
+  DBUG_ENTER("spider_mbase_handler::append_key_order_with_alias");
+  DBUG_PRINT("info",("spider this=%p", this));
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  if (spider->result_list.direct_aggregate)
+  {
+    int error_num;
+    if ((error_num = append_group_by(str, alias, alias_length)))
+      DBUG_RETURN(error_num);
+  }
+#endif
+  if (result_list->sorted == TRUE)
+  {
+    if (result_list->desc_flg == TRUE)
+    {
+      for (
+        key_part = key_info->key_part + result_list->key_order,
+        length = 1;
+        length + result_list->key_order <
+          (int) spider_user_defined_key_parts(key_info) &&
+        length < result_list->max_order;
+        key_part++,
+        length++
+      ) {
+        field = key_part->field;
+        key_name_length =
+          mysql_share->column_name_str[field->field_index].length();
+        if (length == 1)
+        {
+          if (str->reserve(SPIDER_SQL_ORDER_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(SPIDER_SQL_ORDER_STR, SPIDER_SQL_ORDER_LEN);
+        }
+        if (key_part->key_part_flag & HA_REVERSE_SORT)
+        {
+          if (str->reserve(alias_length + key_name_length +
+            /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_COMMA_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(alias, alias_length);
+          mysql_share->append_column_name(str, field->field_index);
+          str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+        } else {
+          if (str->reserve(alias_length + key_name_length +
+            /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+            SPIDER_SQL_DESC_LEN + SPIDER_SQL_COMMA_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(alias, alias_length);
+          mysql_share->append_column_name(str, field->field_index);
+          str->q_append(SPIDER_SQL_DESC_STR, SPIDER_SQL_DESC_LEN);
+          str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+        }
+      }
+      if (
+        length + result_list->key_order <=
+          (int) spider_user_defined_key_parts(key_info) &&
+        length <= result_list->max_order
+      ) {
+        field = key_part->field;
+        key_name_length =
+          mysql_share->column_name_str[field->field_index].length();
+        if (length == 1)
+        {
+          if (str->reserve(SPIDER_SQL_ORDER_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(SPIDER_SQL_ORDER_STR, SPIDER_SQL_ORDER_LEN);
+        }
+        if (key_part->key_part_flag & HA_REVERSE_SORT)
+        {
+          if (str->reserve(alias_length + key_name_length +
+            /* SPIDER_SQL_NAME_QUOTE_LEN */ 2))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(alias, alias_length);
+          mysql_share->append_column_name(str, field->field_index);
+        } else {
+          if (str->reserve(alias_length + key_name_length +
+            /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_DESC_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(alias, alias_length);
+          mysql_share->append_column_name(str, field->field_index);
+          str->q_append(SPIDER_SQL_DESC_STR, SPIDER_SQL_DESC_LEN);
+        }
+      }
+    } else {
+      for (
+        key_part = key_info->key_part + result_list->key_order,
+        length = 1;
+        length + result_list->key_order <
+          (int) spider_user_defined_key_parts(key_info) &&
+        length < result_list->max_order;
+        key_part++,
+        length++
+      ) {
+        field = key_part->field;
+        key_name_length =
+          mysql_share->column_name_str[field->field_index].length();
+        if (length == 1)
+        {
+          if (str->reserve(SPIDER_SQL_ORDER_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(SPIDER_SQL_ORDER_STR, SPIDER_SQL_ORDER_LEN);
+        }
+        if (key_part->key_part_flag & HA_REVERSE_SORT)
+        {
+          if (str->reserve(alias_length + key_name_length +
+            /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+            SPIDER_SQL_DESC_LEN + SPIDER_SQL_COMMA_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(alias, alias_length);
+          mysql_share->append_column_name(str, field->field_index);
+          str->q_append(SPIDER_SQL_DESC_STR, SPIDER_SQL_DESC_LEN);
+          str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+        } else {
+          if (str->reserve(alias_length + key_name_length +
+            /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_COMMA_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(alias, alias_length);
+          mysql_share->append_column_name(str, field->field_index);
+          str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+        }
+      }
+      if (
+        length + result_list->key_order <=
+          (int) spider_user_defined_key_parts(key_info) &&
+        length <= result_list->max_order
+      ) {
+        field = key_part->field;
+        key_name_length =
+          mysql_share->column_name_str[field->field_index].length();
+        if (length == 1)
+        {
+          if (str->reserve(SPIDER_SQL_ORDER_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(SPIDER_SQL_ORDER_STR, SPIDER_SQL_ORDER_LEN);
+        }
+        if (key_part->key_part_flag & HA_REVERSE_SORT)
+        {
+          if (str->reserve(alias_length + key_name_length +
+            /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_DESC_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(alias, alias_length);
+          mysql_share->append_column_name(str, field->field_index);
+          str->q_append(SPIDER_SQL_DESC_STR, SPIDER_SQL_DESC_LEN);
+        } else {
+          if (str->reserve(alias_length + key_name_length +
+            /* SPIDER_SQL_NAME_QUOTE_LEN */ 2))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(alias, alias_length);
+          mysql_share->append_column_name(str, field->field_index);
+        }
+      }
+    }
+  }
+  limit_pos = str->length();
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_limit_part(
+  longlong offset,
+  longlong limit,
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_limit_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      limit_pos = str->length();
+      break;
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &tmp_sql;
+      limit_pos = str->length();
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      str = &update_sql;
+      limit_pos = str->length();
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      str = &ha_sql;
+      ha_limit_pos = str->length();
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_limit(str, offset, limit);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::reappend_limit_part(
+  longlong offset,
+  longlong limit,
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::reappend_limit_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      str->length(limit_pos);
+      break;
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &tmp_sql;
+      str->length(limit_pos);
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      str = &update_sql;
+      str->length(limit_pos);
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      str = &ha_sql;
+      str->length(ha_limit_pos);
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_limit(str, offset, limit);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_limit(
+  spider_string *str,
+  longlong offset,
+  longlong limit
+) {
+  char buf[SPIDER_LONGLONG_LEN + 1];
+  uint32 length;
+  DBUG_ENTER("spider_mbase_handler::append_limit");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info", ("spider offset=%lld", offset));
+  DBUG_PRINT("info", ("spider limit=%lld", limit));
+  if (offset || limit < 9223372036854775807LL)
+  {
+    if (str->reserve(SPIDER_SQL_LIMIT_LEN + SPIDER_SQL_COMMA_LEN +
+      ((SPIDER_LONGLONG_LEN) * 2)))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_LIMIT_STR, SPIDER_SQL_LIMIT_LEN);
+    if (offset)
+    {
+      length = (uint32) (my_charset_bin.longlong10_to_str)(
+        buf, SPIDER_LONGLONG_LEN + 1, -10, offset);
+      str->q_append(buf, length);
+      str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+    }
+    length = (uint32) (my_charset_bin.longlong10_to_str)(
+      buf, SPIDER_LONGLONG_LEN + 1, -10, limit);
+    str->q_append(buf, length);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_select_lock_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_select_lock_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_select_lock(str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_select_lock(
+  spider_string *str
+) {
+  int lock_mode = spider_conn_lock_mode(spider);
+  DBUG_ENTER("spider_mbase_handler::append_select_lock");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (lock_mode == SPIDER_LOCK_MODE_EXCLUSIVE)
+  {
+    if (str->reserve(SPIDER_SQL_FOR_UPDATE_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_FOR_UPDATE_STR, SPIDER_SQL_FOR_UPDATE_LEN);
+  } else if (lock_mode == SPIDER_LOCK_MODE_SHARED)
+  {
+    if (str->reserve(SPIDER_SQL_SHARED_LOCK_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SHARED_LOCK_STR, SPIDER_SQL_SHARED_LOCK_LEN);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_union_all_start_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_union_all_start_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_union_all_start(str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_union_all_start(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_mbase_handler::append_union_all_start");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_OPEN_PAREN_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_union_all_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_union_all_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_union_all(str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_union_all(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_mbase_handler::append_union_all");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_UNION_ALL_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_UNION_ALL_STR, SPIDER_SQL_UNION_ALL_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_union_all_end_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_union_all_end_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_union_all_end(str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_union_all_end(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_mbase_handler::append_union_all_end");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str->length(str->length() -
+    SPIDER_SQL_UNION_ALL_LEN + SPIDER_SQL_CLOSE_PAREN_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_multi_range_cnt_part(
+  ulong sql_type,
+  uint multi_range_cnt,
+  bool with_comma
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_multi_range_cnt_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &tmp_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_multi_range_cnt(str, multi_range_cnt, with_comma);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_multi_range_cnt(
+  spider_string *str,
+  uint multi_range_cnt,
+  bool with_comma
+) {
+  int range_cnt_length;
+  char range_cnt_str[SPIDER_SQL_INT_LEN];
+  DBUG_ENTER("spider_mbase_handler::append_multi_range_cnt");
+  DBUG_PRINT("info",("spider this=%p", this));
+  range_cnt_length = my_sprintf(range_cnt_str, (range_cnt_str, "%u",
+    multi_range_cnt));
+  if (with_comma)
+  {
+    if (str->reserve(range_cnt_length + SPIDER_SQL_COMMA_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(range_cnt_str, range_cnt_length);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  } else {
+    if (str->reserve(range_cnt_length))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(range_cnt_str, range_cnt_length);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_multi_range_cnt_with_name_part(
+  ulong sql_type,
+  uint multi_range_cnt
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_multi_range_cnt_with_name_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &tmp_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_multi_range_cnt_with_name(str, multi_range_cnt);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_multi_range_cnt_with_name(
+  spider_string *str,
+  uint multi_range_cnt
+) {
+  int range_cnt_length;
+  char range_cnt_str[SPIDER_SQL_INT_LEN];
+  DBUG_ENTER("spider_mbase_handler::append_multi_range_cnt_with_name");
+  DBUG_PRINT("info",("spider this=%p", this));
+  range_cnt_length = my_sprintf(range_cnt_str, (range_cnt_str, "%u",
+    multi_range_cnt));
+  if (str->reserve(range_cnt_length + SPIDER_SQL_SPACE_LEN +
+    SPIDER_SQL_ID_LEN + SPIDER_SQL_COMMA_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(range_cnt_str, range_cnt_length);
+  str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+  str->q_append(SPIDER_SQL_ID_STR, SPIDER_SQL_ID_LEN);
+  str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_open_handler_part(
+  ulong sql_type,
+  uint handler_id,
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_open_handler_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_HANDLER:
+      str = &ha_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_open_handler(str, handler_id, conn, link_idx);
+  exec_ha_sql = str;
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_open_handler(
+  spider_string *str,
+  uint handler_id,
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  int error_num;
+  DBUG_ENTER("spider_mbase_handler::append_open_handler");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider link_idx=%d", link_idx));
+  DBUG_PRINT("info",("spider m_handler_cid=%s",
+    spider->m_handler_cid[link_idx]));
+  if (str->reserve(SPIDER_SQL_HANDLER_LEN))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str->q_append(SPIDER_SQL_HANDLER_STR, SPIDER_SQL_HANDLER_LEN);
+  if ((error_num = mysql_share->append_table_name(str,
+      spider->conn_link_idx[link_idx])))
+    DBUG_RETURN(error_num);
+  if (str->reserve(SPIDER_SQL_OPEN_LEN + SPIDER_SQL_AS_LEN +
+    SPIDER_SQL_HANDLER_CID_LEN))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str->q_append(SPIDER_SQL_OPEN_STR, SPIDER_SQL_OPEN_LEN);
+  str->q_append(SPIDER_SQL_AS_STR, SPIDER_SQL_AS_LEN);
+  str->q_append(spider->m_handler_cid[link_idx], SPIDER_SQL_HANDLER_CID_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_close_handler_part(
+  ulong sql_type,
+  int link_idx
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_close_handler_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_HANDLER:
+      str = &ha_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_close_handler(str, link_idx);
+  exec_ha_sql = str;
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_close_handler(
+  spider_string *str,
+  int link_idx
+) {
+  DBUG_ENTER("spider_mbase_handler::append_close_handler");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_HANDLER_LEN + SPIDER_SQL_CLOSE_LEN +
+    SPIDER_SQL_HANDLER_CID_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_HANDLER_STR, SPIDER_SQL_HANDLER_LEN);
+  str->q_append(spider->m_handler_cid[link_idx],
+    SPIDER_SQL_HANDLER_CID_LEN);
+  str->q_append(SPIDER_SQL_CLOSE_STR, SPIDER_SQL_CLOSE_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_insert_terminator_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_insert_terminator_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+      str = &insert_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_insert_terminator(str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_insert_terminator(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_mbase_handler::append_insert_terminator");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider dup_update_sql.length=%u", dup_update_sql.length()));
+  if (
+    spider->result_list.insert_dup_update_pushdown &&
+    dup_update_sql.length()
+  ) {
+    DBUG_PRINT("info",("spider add duplicate key update"));
+    direct_insert_kind = SPIDER_SQL_DIRECT_INSERT_KIND_DUP_UPDATE;
+    str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+    if (str->reserve(SPIDER_SQL_DUPLICATE_KEY_UPDATE_LEN +
+      dup_update_sql.length()))
+    {
+      str->length(0);
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_SQL_DUPLICATE_KEY_UPDATE_STR,
+      SPIDER_SQL_DUPLICATE_KEY_UPDATE_LEN);
+    if (str->append(dup_update_sql))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  } else {
+    str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_insert_values_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_insert_values_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+      str = &insert_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_insert_values(str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_insert_values(
+  spider_string *str
+) {
+  SPIDER_SHARE *share = spider->share;
+  TABLE *table = spider->get_table();
+  Field **field;
+  bool add_value = FALSE;
+  DBUG_ENTER("spider_mbase_handler::append_insert_values");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_OPEN_PAREN_LEN))
+  {
+    str->length(0);
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  for (field = table->field; *field; field++)
+  {
+    DBUG_PRINT("info",("spider field_index=%u", (*field)->field_index));
+    if (
+      bitmap_is_set(table->write_set, (*field)->field_index) ||
+      bitmap_is_set(table->read_set, (*field)->field_index)
+    ) {
+#ifndef DBUG_OFF
+      MY_BITMAP *tmp_map =
+        dbug_tmp_use_all_columns(table, &table->read_set);
+#endif
+      add_value = TRUE;
+      DBUG_PRINT("info",("spider is_null()=%s",
+        (*field)->is_null() ? "TRUE" : "FALSE"));
+      DBUG_PRINT("info",("spider table->next_number_field=%p",
+        table->next_number_field));
+      DBUG_PRINT("info",("spider *field=%p", *field));
+      DBUG_PRINT("info",("spider force_auto_increment=%s",
+        (table->next_number_field && spider->force_auto_increment) ?
+        "TRUE" : "FALSE"));
+      if (
+        (*field)->is_null() ||
+        (
+          table->next_number_field == *field &&
+          !table->auto_increment_field_not_null &&
+          !spider->force_auto_increment
+        )
+      ) {
+        if (str->reserve(SPIDER_SQL_NULL_LEN + SPIDER_SQL_COMMA_LEN))
+        {
+#ifndef DBUG_OFF
+          dbug_tmp_restore_column_map(&table->read_set, tmp_map);
+#endif
+          str->length(0);
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        str->q_append(SPIDER_SQL_NULL_STR, SPIDER_SQL_NULL_LEN);
+      } else {
+        if (
+          spider_db_mbase_utility->
+            append_column_value(spider, str, *field, NULL,
+              share->access_charset) ||
+          str->reserve(SPIDER_SQL_COMMA_LEN)
+        ) {
+#ifndef DBUG_OFF
+          dbug_tmp_restore_column_map(&table->read_set, tmp_map);
+#endif
+          str->length(0);
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+      }
+      str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+#ifndef DBUG_OFF
+      dbug_tmp_restore_column_map(&table->read_set, tmp_map);
+#endif
+    }
+  }
+  if (add_value)
+    str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  if (str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN + SPIDER_SQL_COMMA_LEN))
+  {
+    str->length(0);
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+  str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_into_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_into_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+      str = &insert_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_into(str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_into(
+  spider_string *str
+) {
+  const TABLE *table = spider->get_table();
+  Field **field;
+  uint field_name_length = 0;
+  DBUG_ENTER("spider_mbase_handler::append_into");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_INTO_LEN + mysql_share->db_nm_max_length +
+    SPIDER_SQL_DOT_LEN + mysql_share->table_nm_max_length +
+    /* SPIDER_SQL_NAME_QUOTE_LEN */ 4 + SPIDER_SQL_OPEN_PAREN_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_INTO_STR, SPIDER_SQL_INTO_LEN);
+  insert_table_name_pos = str->length();
+  append_table_name_with_adjusting(str, first_link_idx,
+    SPIDER_SQL_TYPE_INSERT_SQL);
+  str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  for (field = table->field; *field; field++)
+  {
+    if (
+      bitmap_is_set(table->write_set, (*field)->field_index) ||
+      bitmap_is_set(table->read_set, (*field)->field_index)
+    ) {
+      field_name_length =
+        mysql_share->column_name_str[(*field)->field_index].length();
+      if (str->reserve(field_name_length +
+        /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_COMMA_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      mysql_share->append_column_name(str, (*field)->field_index);
+      str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+    }
+  }
+  if (field_name_length)
+    str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  if (str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN + SPIDER_SQL_VALUES_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+  str->q_append(SPIDER_SQL_VALUES_STR, SPIDER_SQL_VALUES_LEN);
+  insert_pos = str->length();
+  DBUG_RETURN(0);
+}
+
+void spider_mbase_handler::set_insert_to_pos(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_mbase_handler::set_insert_to_pos");
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+      insert_sql.length(insert_pos);
+      break;
+    default:
+      DBUG_ASSERT(0);
+      break;
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_mbase_handler::append_from_part(
+  ulong sql_type,
+  int link_idx
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_from_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_HANDLER:
+      str = &ha_sql;
+      break;
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      str = &update_sql;
+      break;
+    default:
+      str = &sql;
+      break;
+  }
+  error_num = append_from(str, sql_type, link_idx);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_from(
+  spider_string *str,
+  ulong sql_type,
+  int link_idx
+) {
+  DBUG_ENTER("spider_mbase_handler::append_from");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider link_idx=%d", link_idx));
+  int error_num = 0;
+  if (sql_type == SPIDER_SQL_TYPE_HANDLER)
+  {
+    ha_table_name_pos = str->length();
+    DBUG_PRINT("info",("spider ha_table_name_pos=%u", ha_table_name_pos));
+    ha_sql_handler_id = spider->m_handler_id[link_idx];
+    DBUG_PRINT("info",("spider ha_sql_handler_id=%u", ha_sql_handler_id));
+    if (str->reserve(SPIDER_SQL_HANDLER_CID_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(spider->m_handler_cid[link_idx], SPIDER_SQL_HANDLER_CID_LEN);
+    DBUG_PRINT("info",("spider m_handler_cid=%s",
+      spider->m_handler_cid[link_idx]));
+  } else {
+    if (str->reserve(SPIDER_SQL_FROM_LEN + mysql_share->db_nm_max_length +
+      SPIDER_SQL_DOT_LEN + mysql_share->table_nm_max_length +
+      /* SPIDER_SQL_NAME_QUOTE_LEN */ 4 + SPIDER_SQL_OPEN_PAREN_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_FROM_STR, SPIDER_SQL_FROM_LEN);
+    table_name_pos = str->length();
+    append_table_name_with_adjusting(str, link_idx, sql_type);
+    if(spider_param_index_hint_pushdown(spider->wide_handler->trx->thd))
+    {
+      if((error_num = append_index_hint(str, link_idx, sql_type)))
+      {
+        DBUG_RETURN(error_num);
+      }
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_flush_tables_part(
+  ulong sql_type,
+  int link_idx,
+  bool lock
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_flush_tables_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_OTHER_SQL:
+      str = &spider->result_list.sqls[link_idx];
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_flush_tables(str, link_idx, lock);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_flush_tables(
+  spider_string *str,
+  int link_idx,
+  bool lock
+) {
+  DBUG_ENTER("spider_mbase_handler::append_flush_tables");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (lock)
+  {
+    if (str->reserve(SPIDER_SQL_FLUSH_TABLES_LEN +
+      SPIDER_SQL_WITH_READ_LOCK_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_FLUSH_TABLES_STR, SPIDER_SQL_FLUSH_TABLES_LEN);
+    str->q_append(SPIDER_SQL_WITH_READ_LOCK_STR,
+      SPIDER_SQL_WITH_READ_LOCK_LEN);
+  } else {
+    if (str->reserve(SPIDER_SQL_FLUSH_TABLES_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_FLUSH_TABLES_STR, SPIDER_SQL_FLUSH_TABLES_LEN);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_optimize_table_part(
+  ulong sql_type,
+  int link_idx
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_optimize_table_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_OTHER_SQL:
+      str = &spider->result_list.sqls[link_idx];
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_optimize_table(str, link_idx);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_optimize_table(
+  spider_string *str,
+  int link_idx
+) {
+  SPIDER_SHARE *share = spider->share;
+  int conn_link_idx = spider->conn_link_idx[link_idx];
+  int local_length = spider_param_internal_optimize_local(
+    spider->wide_handler->trx->thd,
+    share->internal_optimize_local) * SPIDER_SQL_SQL_LOCAL_LEN;
+  DBUG_ENTER("spider_mbase_handler::append_optimize_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_SQL_OPTIMIZE_LEN + SPIDER_SQL_SQL_TABLE_LEN +
+    local_length +
+    mysql_share->db_names_str[conn_link_idx].length() +
+    SPIDER_SQL_DOT_LEN +
+    mysql_share->table_names_str[conn_link_idx].length() +
+    /* SPIDER_SQL_NAME_QUOTE_LEN */ 4))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_SQL_OPTIMIZE_STR, SPIDER_SQL_SQL_OPTIMIZE_LEN);
+  if (local_length)
+    str->q_append(SPIDER_SQL_SQL_LOCAL_STR, SPIDER_SQL_SQL_LOCAL_LEN);
+  str->q_append(SPIDER_SQL_SQL_TABLE_STR, SPIDER_SQL_SQL_TABLE_LEN);
+  mysql_share->append_table_name(str, conn_link_idx);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_analyze_table_part(
+  ulong sql_type,
+  int link_idx
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_analyze_table_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_OTHER_SQL:
+      str = &spider->result_list.sqls[link_idx];
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_analyze_table(str, link_idx);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_analyze_table(
+  spider_string *str,
+  int link_idx
+) {
+  SPIDER_SHARE *share = spider->share;
+  int conn_link_idx = spider->conn_link_idx[link_idx];
+  int local_length = spider_param_internal_optimize_local(
+    spider->wide_handler->trx->thd,
+    share->internal_optimize_local) * SPIDER_SQL_SQL_LOCAL_LEN;
+  DBUG_ENTER("spider_mbase_handler::append_analyze_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_SQL_ANALYZE_LEN + SPIDER_SQL_SQL_TABLE_LEN +
+    local_length +
+    mysql_share->db_names_str[conn_link_idx].length() +
+    SPIDER_SQL_DOT_LEN +
+    mysql_share->table_names_str[conn_link_idx].length() +
+    /* SPIDER_SQL_NAME_QUOTE_LEN */ 4))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_SQL_ANALYZE_STR, SPIDER_SQL_SQL_ANALYZE_LEN);
+  if (local_length)
+    str->q_append(SPIDER_SQL_SQL_LOCAL_STR, SPIDER_SQL_SQL_LOCAL_LEN);
+  str->q_append(SPIDER_SQL_SQL_TABLE_STR, SPIDER_SQL_SQL_TABLE_LEN);
+  mysql_share->append_table_name(str, conn_link_idx);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_repair_table_part(
+  ulong sql_type,
+  int link_idx,
+  HA_CHECK_OPT* check_opt
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_repair_table_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_OTHER_SQL:
+      str = &spider->result_list.sqls[link_idx];
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_repair_table(str, link_idx, check_opt);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_repair_table(
+  spider_string *str,
+  int link_idx,
+  HA_CHECK_OPT* check_opt
+) {
+  SPIDER_SHARE *share = spider->share;
+  int conn_link_idx = spider->conn_link_idx[link_idx];
+  int local_length = spider_param_internal_optimize_local(
+    spider->wide_handler->trx->thd,
+    share->internal_optimize_local) * SPIDER_SQL_SQL_LOCAL_LEN;
+  DBUG_ENTER("spider_mbase_handler::append_repair_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_SQL_REPAIR_LEN + SPIDER_SQL_SQL_TABLE_LEN +
+    local_length +
+    mysql_share->db_names_str[conn_link_idx].length() +
+    SPIDER_SQL_DOT_LEN +
+    mysql_share->table_names_str[conn_link_idx].length() +
+    /* SPIDER_SQL_NAME_QUOTE_LEN */ 4))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_SQL_REPAIR_STR, SPIDER_SQL_SQL_REPAIR_LEN);
+  if (local_length)
+    str->q_append(SPIDER_SQL_SQL_LOCAL_STR, SPIDER_SQL_SQL_LOCAL_LEN);
+  str->q_append(SPIDER_SQL_SQL_TABLE_STR, SPIDER_SQL_SQL_TABLE_LEN);
+  mysql_share->append_table_name(str, conn_link_idx);
+  if (check_opt->flags & T_QUICK)
+  {
+    if (str->reserve(SPIDER_SQL_SQL_QUICK_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SQL_QUICK_STR, SPIDER_SQL_SQL_QUICK_LEN);
+  }
+  if (check_opt->flags & T_EXTEND)
+  {
+    if (str->reserve(SPIDER_SQL_SQL_EXTENDED_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SQL_EXTENDED_STR, SPIDER_SQL_SQL_EXTENDED_LEN);
+  }
+  if (check_opt->sql_flags & TT_USEFRM)
+  {
+    if (str->reserve(SPIDER_SQL_SQL_USE_FRM_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SQL_USE_FRM_STR, SPIDER_SQL_SQL_USE_FRM_LEN);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_check_table_part(
+  ulong sql_type,
+  int link_idx,
+  HA_CHECK_OPT* check_opt
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_check_table_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_OTHER_SQL:
+      str = &spider->result_list.sqls[link_idx];
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_check_table(str, link_idx, check_opt);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_check_table(
+  spider_string *str,
+  int link_idx,
+  HA_CHECK_OPT* check_opt
+) {
+  int conn_link_idx = spider->conn_link_idx[link_idx];
+  DBUG_ENTER("spider_mbase_handler::append_check_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_SQL_CHECK_TABLE_LEN +
+    mysql_share->db_names_str[conn_link_idx].length() +
+    SPIDER_SQL_DOT_LEN +
+    mysql_share->table_names_str[conn_link_idx].length() +
+    /* SPIDER_SQL_NAME_QUOTE_LEN */ 4))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_SQL_CHECK_TABLE_STR,
+    SPIDER_SQL_SQL_CHECK_TABLE_LEN);
+  mysql_share->append_table_name(str, conn_link_idx);
+  if (check_opt->flags & T_QUICK)
+  {
+    if (str->reserve(SPIDER_SQL_SQL_QUICK_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SQL_QUICK_STR, SPIDER_SQL_SQL_QUICK_LEN);
+  }
+  if (check_opt->flags & T_FAST)
+  {
+    if (str->reserve(SPIDER_SQL_SQL_FAST_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SQL_FAST_STR, SPIDER_SQL_SQL_FAST_LEN);
+  }
+  if (check_opt->flags & T_MEDIUM)
+  {
+    if (str->reserve(SPIDER_SQL_SQL_MEDIUM_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SQL_MEDIUM_STR, SPIDER_SQL_SQL_MEDIUM_LEN);
+  }
+  if (check_opt->flags & T_EXTEND)
+  {
+    if (str->reserve(SPIDER_SQL_SQL_EXTENDED_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SQL_EXTENDED_STR, SPIDER_SQL_SQL_EXTENDED_LEN);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_enable_keys_part(
+  ulong sql_type,
+  int link_idx
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_enable_keys_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_OTHER_SQL:
+      str = &spider->result_list.sqls[link_idx];
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_enable_keys(str, link_idx);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_enable_keys(
+  spider_string *str,
+  int link_idx
+) {
+  int conn_link_idx = spider->conn_link_idx[link_idx];
+  DBUG_ENTER("spider_mbase_handler::append_enable_keys");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_SQL_ALTER_TABLE_LEN +
+    mysql_share->db_names_str[conn_link_idx].length() +
+    SPIDER_SQL_DOT_LEN +
+    mysql_share->table_names_str[conn_link_idx].length() +
+    /* SPIDER_SQL_NAME_QUOTE_LEN */ 4 + SPIDER_SQL_SQL_ENABLE_KEYS_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_SQL_ALTER_TABLE_STR,
+    SPIDER_SQL_SQL_ALTER_TABLE_LEN);
+  mysql_share->append_table_name(str, conn_link_idx);
+  str->q_append(SPIDER_SQL_SQL_ENABLE_KEYS_STR,
+    SPIDER_SQL_SQL_ENABLE_KEYS_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_disable_keys_part(
+  ulong sql_type,
+  int link_idx
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_disable_keys_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_OTHER_SQL:
+      str = &spider->result_list.sqls[link_idx];
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_disable_keys(str, link_idx);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_disable_keys(
+  spider_string *str,
+  int link_idx
+) {
+  int conn_link_idx = spider->conn_link_idx[link_idx];
+  DBUG_ENTER("spider_mbase_handler::append_disable_keys");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_SQL_ALTER_TABLE_LEN +
+    mysql_share->db_names_str[conn_link_idx].length() +
+    SPIDER_SQL_DOT_LEN +
+    mysql_share->table_names_str[conn_link_idx].length() +
+    /* SPIDER_SQL_NAME_QUOTE_LEN */ 4 + SPIDER_SQL_SQL_DISABLE_KEYS_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_SQL_ALTER_TABLE_STR,
+    SPIDER_SQL_SQL_ALTER_TABLE_LEN);
+  mysql_share->append_table_name(str, conn_link_idx);
+  str->q_append(SPIDER_SQL_SQL_DISABLE_KEYS_STR,
+    SPIDER_SQL_SQL_DISABLE_KEYS_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_delete_all_rows_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_delete_all_rows_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+      str = &update_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_delete_all_rows(str, sql_type);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_delete_all_rows(
+  spider_string *str,
+  ulong sql_type
+) {
+  int error_num;
+  DBUG_ENTER("spider_mbase_handler::append_delete_all_rows");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (spider->wide_handler->sql_command == SQLCOM_TRUNCATE)
+  {
+    if ((error_num = append_truncate(str, sql_type, first_link_idx)))
+      DBUG_RETURN(error_num);
+  } else {
+    if (
+      (error_num = append_delete(str)) ||
+      (error_num = append_from(str, sql_type, first_link_idx))
+    )
+      DBUG_RETURN(error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_truncate(
+  spider_string *str,
+  ulong sql_type,
+  int link_idx
+) {
+  DBUG_ENTER("spider_mbase_handler::append_truncate");
+  if (str->reserve(SPIDER_SQL_TRUNCATE_TABLE_LEN +
+    mysql_share->db_nm_max_length +
+    SPIDER_SQL_DOT_LEN + mysql_share->table_nm_max_length +
+    /* SPIDER_SQL_NAME_QUOTE_LEN */ 4 + SPIDER_SQL_OPEN_PAREN_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_TRUNCATE_TABLE_STR, SPIDER_SQL_TRUNCATE_TABLE_LEN);
+  table_name_pos = str->length();
+  append_table_name_with_adjusting(str, link_idx, sql_type);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_explain_select_part(
+  const key_range *start_key,
+  const key_range *end_key,
+  ulong sql_type,
+  int link_idx
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_explain_select_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_OTHER_SQL:
+      str = &spider->result_list.sqls[link_idx];
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num =
+    append_explain_select(str, start_key, end_key, sql_type, link_idx);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_explain_select(
+  spider_string *str,
+  const key_range *start_key,
+  const key_range *end_key,
+  ulong sql_type,
+  int link_idx
+) {
+  int error_num;
+  DBUG_ENTER("spider_mbase_handler::append_explain_select");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_EXPLAIN_SELECT_LEN))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str->q_append(SPIDER_SQL_EXPLAIN_SELECT_STR, SPIDER_SQL_EXPLAIN_SELECT_LEN);
+  if (
+    (error_num = append_from(str, sql_type, link_idx)) ||
+    (error_num = append_key_where(str, NULL, NULL, start_key, end_key,
+      sql_type, FALSE))
+  ) {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  DBUG_RETURN(0);
+}
+
+/********************************************************************
+ * Determine whether the current query's projection list
+ * consists solely of the specified column.
+ *
+ * Params   IN      - field_index:
+ *                    Field index of the column of interest within
+ *                    its table.
+ *
+ * Returns  TRUE    - if the query's projection list consists
+ *                    solely of the specified column.
+ *          FALSE   - otherwise.
+ ********************************************************************/
+bool spider_mbase_handler::is_sole_projection_field(
+  uint16 field_index
+) {
+  // Determine whether the projection list consists solely of the field of interest
+  bool            is_field_in_projection_list = FALSE;
+  TABLE*          table                       = spider->get_table();
+  uint16          projection_field_count      = 0;
+  uint16          projection_field_index;
+  Field**         field;
+  DBUG_ENTER( "spider_mbase_handler::is_sole_projection_field" );
+
+  for ( field = table->field; *field ; field++ )
+  {
+    projection_field_index = ( *field )->field_index;
+
+    if ( !( minimum_select_bit_is_set( projection_field_index ) ) )
+    {
+      // Current field is not in the projection list
+      continue;
+    }
+
+    projection_field_count++;
+
+    if ( !is_field_in_projection_list )
+    {
+      if ( field_index == projection_field_index )
+      {
+        // Field of interest is in the projection list
+        is_field_in_projection_list = TRUE;
+      }
+    }
+
+    if ( is_field_in_projection_list && ( projection_field_count != 1 ) )
+    {
+      // Field of interest is not the sole column in the projection list
+      DBUG_RETURN( FALSE );
+    }
+  }
+
+  if ( is_field_in_projection_list && ( projection_field_count == 1 ) )
+  {
+    // Field of interest is the only column in the projection list
+    DBUG_RETURN( TRUE );
+  }
+
+  DBUG_RETURN( FALSE );
+}
+
+bool spider_mbase_handler::is_bulk_insert_exec_period(
+  bool bulk_end
+) {
+  DBUG_ENTER("spider_mbase_handler::is_bulk_insert_exec_period");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider insert_sql.length=%u", insert_sql.length()));
+  DBUG_PRINT("info",("spider insert_pos=%d", insert_pos));
+  DBUG_PRINT("info",("spider insert_sql=%s", insert_sql.c_ptr_safe()));
+  if (
+    (bulk_end || (int) insert_sql.length() >= spider->bulk_size) &&
+    (int) insert_sql.length() > insert_pos
+  ) {
+    DBUG_RETURN(TRUE);
+  }
+  DBUG_RETURN(FALSE);
+}
+
+bool spider_mbase_handler::sql_is_filled_up(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_mbase_handler::sql_is_filled_up");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(filled_up);
+}
+
+bool spider_mbase_handler::sql_is_empty(
+  ulong sql_type
+) {
+  bool is_empty;
+  DBUG_ENTER("spider_mbase_handler::sql_is_empty");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      is_empty = (sql.length() == 0);
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+      is_empty = (insert_sql.length() == 0);
+      break;
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      is_empty = (update_sql.length() == 0);
+      break;
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      is_empty = (tmp_sql.length() == 0);
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      is_empty = (ha_sql.length() == 0);
+      break;
+    default:
+      is_empty = TRUE;
+      break;
+  }
+  DBUG_RETURN(is_empty);
+}
+
+bool spider_mbase_handler::support_multi_split_read()
+{
+  DBUG_ENTER("spider_mbase_handler::support_multi_split_read");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(TRUE);
+}
+
+bool spider_mbase_handler::support_bulk_update()
+{
+  DBUG_ENTER("spider_mbase_handler::support_bulk_update");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(TRUE);
+}
+
+int spider_mbase_handler::bulk_tmp_table_insert()
+{
+  int error_num;
+  DBUG_ENTER("spider_mbase_handler::bulk_tmp_table_insert");
+  DBUG_PRINT("info",("spider this=%p", this));
+  error_num = store_sql_to_bulk_tmp_table(&update_sql, upd_tmp_tbl);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::bulk_tmp_table_insert(
+  int link_idx
+) {
+  int error_num;
+  DBUG_ENTER("spider_mbase_handler::bulk_tmp_table_insert");
+  DBUG_PRINT("info",("spider this=%p", this));
+  error_num = store_sql_to_bulk_tmp_table(
+    &spider->result_list.update_sqls[link_idx],
+    spider->result_list.upd_tmp_tbls[link_idx]);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::bulk_tmp_table_end_bulk_insert()
+{
+  int error_num;
+  DBUG_ENTER("spider_mbase_handler::bulk_tmp_table_end_bulk_insert");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if ((error_num = upd_tmp_tbl->file->ha_end_bulk_insert()))
+  {
+    DBUG_RETURN(error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::bulk_tmp_table_rnd_init()
+{
+  int error_num;
+  DBUG_ENTER("spider_mbase_handler::bulk_tmp_table_rnd_init");
+  DBUG_PRINT("info",("spider this=%p", this));
+  upd_tmp_tbl->file->extra(HA_EXTRA_CACHE);
+  if ((error_num = upd_tmp_tbl->file->ha_rnd_init(TRUE)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  reading_from_bulk_tmp_table = TRUE;
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::bulk_tmp_table_rnd_next()
+{
+  int error_num;
+  DBUG_ENTER("spider_mbase_handler::bulk_tmp_table_rnd_next");
+  DBUG_PRINT("info",("spider this=%p", this));
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 50200
+  error_num = upd_tmp_tbl->file->ha_rnd_next(upd_tmp_tbl->record[0]);
+#else
+  error_num = upd_tmp_tbl->file->rnd_next(upd_tmp_tbl->record[0]);
+#endif
+  if (!error_num)
+  {
+    error_num = restore_sql_from_bulk_tmp_table(&insert_sql, upd_tmp_tbl);
+  }
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::bulk_tmp_table_rnd_end()
+{
+  int error_num;
+  DBUG_ENTER("spider_mbase_handler::bulk_tmp_table_rnd_end");
+  DBUG_PRINT("info",("spider this=%p", this));
+  reading_from_bulk_tmp_table = FALSE;
+  if ((error_num = upd_tmp_tbl->file->ha_rnd_end()))
+  {
+    DBUG_RETURN(error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+bool spider_mbase_handler::need_copy_for_update(
+  int link_idx
+) {
+  int all_link_idx = spider->conn_link_idx[link_idx];
+  DBUG_ENTER("spider_mbase_handler::need_copy_for_update");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(!mysql_share->same_db_table_name ||
+    spider->share->link_statuses[all_link_idx] == SPIDER_LINK_STATUS_RECOVERY);
+}
+
+bool spider_mbase_handler::bulk_tmp_table_created()
+{
+  DBUG_ENTER("spider_mbase_handler::bulk_tmp_table_created");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(upd_tmp_tbl);
+}
+
+int spider_mbase_handler::mk_bulk_tmp_table_and_bulk_start()
+{
+  THD *thd = spider->wide_handler->trx->thd;
+  TABLE *table = spider->get_table();
+  DBUG_ENTER("spider_mbase_handler::mk_bulk_tmp_table_and_bulk_start");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!upd_tmp_tbl)
+  {
+#ifdef SPIDER_use_LEX_CSTRING_for_Field_blob_constructor
+    LEX_CSTRING field_name = {STRING_WITH_LEN("a")};
+    if (!(upd_tmp_tbl = spider_mk_sys_tmp_table(
+      thd, table, &upd_tmp_tbl_prm, &field_name, update_sql.charset())))
+#else
+    if (!(upd_tmp_tbl = spider_mk_sys_tmp_table(
+      thd, table, &upd_tmp_tbl_prm, "a", update_sql.charset())))
+#endif
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    upd_tmp_tbl->file->extra(HA_EXTRA_WRITE_CACHE);
+    upd_tmp_tbl->file->ha_start_bulk_insert((ha_rows) 0);
+  }
+  DBUG_RETURN(0);
+}
+
+void spider_mbase_handler::rm_bulk_tmp_table()
+{
+  DBUG_ENTER("spider_mbase_handler::rm_bulk_tmp_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (upd_tmp_tbl)
+  {
+    spider_rm_sys_tmp_table(spider->wide_handler->trx->thd, upd_tmp_tbl,
+      &upd_tmp_tbl_prm);
+    upd_tmp_tbl = NULL;
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_mbase_handler::store_sql_to_bulk_tmp_table(
+  spider_string *str,
+  TABLE *tmp_table
+) {
+  int error_num;
+  DBUG_ENTER("spider_mbase_handler::store_sql_to_bulk_tmp_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  tmp_table->field[0]->set_notnull();
+  tmp_table->field[0]->store(str->ptr(), str->length(), str->charset());
+  if ((error_num = tmp_table->file->ha_write_row(tmp_table->record[0])))
+    DBUG_RETURN(error_num);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::restore_sql_from_bulk_tmp_table(
+  spider_string *str,
+  TABLE *tmp_table
+) {
+  DBUG_ENTER("spider_mbase_handler::restore_sql_from_bulk_tmp_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  tmp_table->field[0]->val_str(str->get_str());
+  str->mem_calc();
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::insert_lock_tables_list(
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  spider_db_mbase *db_conn = (spider_db_mbase *) conn->db_conn;
+  SPIDER_LINK_FOR_HASH *tmp_link_for_hash2 = &link_for_hash[link_idx];
+  DBUG_ENTER("spider_mbase_handler::insert_lock_tables_list");
+  DBUG_PRINT("info",("spider this=%p", this));
+  uint old_elements =
+    db_conn->lock_table_hash.array.max_element;
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+  if (my_hash_insert_with_hash_value(
+    &db_conn->lock_table_hash,
+    tmp_link_for_hash2->db_table_str_hash_value,
+    (uchar*) tmp_link_for_hash2))
+#else
+  if (my_hash_insert(&db_conn->lock_table_hash,
+    (uchar*) tmp_link_for_hash2))
+#endif
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  if (db_conn->lock_table_hash.array.max_element > old_elements)
+  {
+    spider_alloc_calc_mem(spider_current_trx,
+      db_conn->lock_table_hash,
+      (db_conn->lock_table_hash.array.max_element - old_elements) *
+      db_conn->lock_table_hash.array.size_of_element);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_lock_tables_list(
+  SPIDER_CONN *conn,
+  int link_idx,
+  int *appended
+) {
+  int error_num;
+  SPIDER_LINK_FOR_HASH *tmp_link_for_hash, *tmp_link_for_hash2;
+  int conn_link_idx = spider->conn_link_idx[link_idx];
+  spider_db_mbase *db_conn = (spider_db_mbase *) conn->db_conn;
+  DBUG_ENTER("spider_mbase_handler::append_lock_tables_list");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider db_conn=%p", db_conn));
+  tmp_link_for_hash2 = &link_for_hash[link_idx];
+  tmp_link_for_hash2->db_table_str =
+    &mysql_share->db_table_str[conn_link_idx];
+  DBUG_PRINT("info",("spider db_table_str=%s",
+    tmp_link_for_hash2->db_table_str->c_ptr_safe()));
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  tmp_link_for_hash2->db_table_str_hash_value =
+    mysql_share->db_table_str_hash_value[conn_link_idx];
+  if (!(tmp_link_for_hash = (SPIDER_LINK_FOR_HASH *)
+    my_hash_search_using_hash_value(
+      &db_conn->lock_table_hash,
+      tmp_link_for_hash2->db_table_str_hash_value,
+      (uchar*) tmp_link_for_hash2->db_table_str->ptr(),
+      tmp_link_for_hash2->db_table_str->length())))
+#else
+  if (!(tmp_link_for_hash = (SPIDER_LINK_FOR_HASH *) my_hash_search(
+    &db_conn->lock_table_hash,
+    (uchar*) tmp_link_for_hash2->db_table_str->ptr(),
+    tmp_link_for_hash2->db_table_str->length())))
+#endif
+  {
+    if ((error_num = insert_lock_tables_list(conn, link_idx)))
+      DBUG_RETURN(error_num);
+    *appended = 1;
+  } else {
+    if (tmp_link_for_hash->spider->wide_handler->lock_type <
+      spider->wide_handler->lock_type)
+    {
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+      my_hash_delete_with_hash_value(
+        &db_conn->lock_table_hash,
+        tmp_link_for_hash->db_table_str_hash_value,
+        (uchar*) tmp_link_for_hash);
+#else
+      my_hash_delete(&db_conn->lock_table_hash,
+        (uchar*) tmp_link_for_hash);
+#endif
+      uint old_elements =
+        db_conn->lock_table_hash.array.max_element;
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+      if (my_hash_insert_with_hash_value(
+        &db_conn->lock_table_hash,
+        tmp_link_for_hash2->db_table_str_hash_value,
+        (uchar*) tmp_link_for_hash2))
+#else
+      if (my_hash_insert(&db_conn->lock_table_hash,
+        (uchar*) tmp_link_for_hash2))
+#endif
+      {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+      if (db_conn->lock_table_hash.array.max_element > old_elements)
+      {
+        spider_alloc_calc_mem(spider_current_trx,
+          db_conn->lock_table_hash,
+          (db_conn->lock_table_hash.array.max_element - old_elements) *
+          db_conn->lock_table_hash.array.size_of_element);
+      }
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::realloc_sql(
+  ulong *realloced
+) {
+  THD *thd = spider->wide_handler->trx->thd;
+  st_spider_share *share = spider->share;
+  int init_sql_alloc_size =
+    spider_param_init_sql_alloc_size(thd, share->init_sql_alloc_size);
+  DBUG_ENTER("spider_mbase_handler::realloc_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if ((int) sql.alloced_length() > init_sql_alloc_size * 2)
+  {
+    sql.free();
+    if (sql.real_alloc(init_sql_alloc_size))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    *realloced |= SPIDER_SQL_TYPE_SELECT_SQL;
+  }
+  if ((int) ha_sql.alloced_length() > init_sql_alloc_size * 2)
+  {
+    ha_sql.free();
+    if (ha_sql.real_alloc(init_sql_alloc_size))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    *realloced |= SPIDER_SQL_TYPE_SELECT_SQL;
+  }
+  if ((int) dup_update_sql.alloced_length() > init_sql_alloc_size * 2)
+  {
+    dup_update_sql.free();
+    if (dup_update_sql.real_alloc(init_sql_alloc_size))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  if ((int) insert_sql.alloced_length() > init_sql_alloc_size * 2)
+  {
+    insert_sql.free();
+    if (insert_sql.real_alloc(init_sql_alloc_size))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    *realloced |= SPIDER_SQL_TYPE_INSERT_SQL;
+  }
+  if ((int) update_sql.alloced_length() > init_sql_alloc_size * 2)
+  {
+    update_sql.free();
+    if (update_sql.real_alloc(init_sql_alloc_size))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    *realloced |= (SPIDER_SQL_TYPE_UPDATE_SQL | SPIDER_SQL_TYPE_DELETE_SQL);
+  }
+  update_sql.length(0);
+  if ((int) tmp_sql.alloced_length() > init_sql_alloc_size * 2)
+  {
+    tmp_sql.free();
+    if (tmp_sql.real_alloc(init_sql_alloc_size))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    *realloced |= SPIDER_SQL_TYPE_TMP_SQL;
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::reset_sql(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_mbase_handler::reset_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql_type & SPIDER_SQL_TYPE_SELECT_SQL)
+  {
+    sql.length(0);
+  }
+  if (sql_type & SPIDER_SQL_TYPE_INSERT_SQL)
+  {
+    insert_sql.length(0);
+  }
+  if (sql_type & (SPIDER_SQL_TYPE_UPDATE_SQL | SPIDER_SQL_TYPE_DELETE_SQL |
+    SPIDER_SQL_TYPE_BULK_UPDATE_SQL))
+  {
+    update_sql.length(0);
+  }
+  if (sql_type & SPIDER_SQL_TYPE_TMP_SQL)
+  {
+    tmp_sql.length(0);
+  }
+  if (sql_type & SPIDER_SQL_TYPE_HANDLER)
+  {
+    ha_sql.length(0);
+  }
+  DBUG_RETURN(0);
+}
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+int spider_mbase_handler::reset_keys(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_mbase_handler::reset_keys");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::reset_upds(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_mbase_handler::reset_upds");
+  DBUG_PRINT("info",("spider this=%p", this));
+  hs_upds.clear();
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::reset_strs(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_mbase_handler::reset_strs");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::reset_strs_pos(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_mbase_handler::reset_strs_pos");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::push_back_upds(
+  SPIDER_HS_STRING_REF &info
+) {
+  int error_num;
+  DBUG_ENTER("spider_mbase_handler::push_back_upds");
+  DBUG_PRINT("info",("spider this=%p", this));
+  error_num = hs_upds.push_back(info);
+  DBUG_RETURN(error_num);
+}
+#endif
+
+bool spider_mbase_handler::need_lock_before_set_sql_for_exec(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_mbase_handler::need_lock_before_set_sql_for_exec");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(FALSE);
+}
+
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+int spider_mbase_handler::set_sql_for_exec(
+  ulong sql_type,
+  int link_idx,
+  SPIDER_LINK_IDX_CHAIN *link_idx_chain
+) {
+  int error_num;
+  DBUG_ENTER("spider_mbase_handler::set_sql_for_exec");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql_type & SPIDER_SQL_TYPE_SELECT_SQL)
+  {
+    if ((error_num = spider_db_mbase_utility->reappend_tables(
+      spider->fields, link_idx_chain, &sql)))
+      DBUG_RETURN(error_num);
+    exec_sql = &sql;
+  }
+  DBUG_RETURN(0);
+}
+#endif
+
+int spider_mbase_handler::set_sql_for_exec(
+  ulong sql_type,
+  int link_idx
+) {
+  int error_num;
+  uint tmp_pos;
+  SPIDER_SHARE *share = spider->share;
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  int all_link_idx = spider->conn_link_idx[link_idx];
+  DBUG_ENTER("spider_mbase_handler::set_sql_for_exec");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql_type & (SPIDER_SQL_TYPE_SELECT_SQL | SPIDER_SQL_TYPE_TMP_SQL))
+  {
+    if (mysql_share->same_db_table_name || link_idx == first_link_idx)
+    {
+      if (sql_type & SPIDER_SQL_TYPE_SELECT_SQL)
+        exec_sql = &sql;
+      if (sql_type & SPIDER_SQL_TYPE_TMP_SQL)
+        exec_tmp_sql = &tmp_sql;
+    } else {
+      char tmp_table_name[MAX_FIELD_WIDTH * 2],
+        tgt_table_name[MAX_FIELD_WIDTH * 2];
+      int tmp_table_name_length;
+      spider_string tgt_table_name_str(tgt_table_name,
+        MAX_FIELD_WIDTH * 2,
+        mysql_share->db_names_str[link_idx].charset());
+      const char *table_names[2], *table_aliases[2];
+      uint table_name_lengths[2], table_alias_lengths[2];
+      tgt_table_name_str.init_calc_mem(104);
+      tgt_table_name_str.length(0);
+      if (result_list->tmp_table_join && spider->bka_mode != 2)
+      {
+        create_tmp_bka_table_name(tmp_table_name, &tmp_table_name_length,
+          link_idx);
+        append_table_name_with_adjusting(&tgt_table_name_str, link_idx,
+          SPIDER_SQL_TYPE_TMP_SQL);
+        table_names[0] = tmp_table_name;
+        table_names[1] = tgt_table_name_str.ptr();
+        table_name_lengths[0] = tmp_table_name_length;
+        table_name_lengths[1] = tgt_table_name_str.length();
+        table_aliases[0] = SPIDER_SQL_A_STR;
+        table_aliases[1] = SPIDER_SQL_B_STR;
+        table_alias_lengths[0] = SPIDER_SQL_A_LEN;
+        table_alias_lengths[1] = SPIDER_SQL_B_LEN;
+      }
+      if (sql_type & SPIDER_SQL_TYPE_SELECT_SQL)
+      {
+        exec_sql = &result_list->sqls[link_idx];
+        if (exec_sql->copy(sql))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        else if (result_list->use_union)
+        {
+          if ((error_num = reset_union_table_name(exec_sql, link_idx,
+            SPIDER_SQL_TYPE_SELECT_SQL)))
+            DBUG_RETURN(error_num);
+        } else {
+          tmp_pos = exec_sql->length();
+          exec_sql->length(table_name_pos);
+          if (result_list->tmp_table_join && spider->bka_mode != 2)
+          {
+            if ((error_num = spider_db_mbase_utility->append_from_with_alias(
+              exec_sql, table_names, table_name_lengths,
+              table_aliases, table_alias_lengths, 2,
+              &table_name_pos, TRUE))
+            )
+              DBUG_RETURN(error_num);
+            exec_sql->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+          } else {
+            append_table_name_with_adjusting(exec_sql, link_idx,
+              SPIDER_SQL_TYPE_SELECT_SQL);
+          }
+          exec_sql->length(tmp_pos);
+        }
+      }
+      if (sql_type & SPIDER_SQL_TYPE_TMP_SQL)
+      {
+        exec_tmp_sql = &result_list->tmp_sqls[link_idx];
+        if (result_list->tmp_table_join && spider->bka_mode != 2)
+        {
+          if (exec_tmp_sql->copy(tmp_sql))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          else {
+            tmp_pos = exec_tmp_sql->length();
+            exec_tmp_sql->length(tmp_sql_pos1);
+            exec_tmp_sql->q_append(tmp_table_name, tmp_table_name_length);
+            exec_tmp_sql->length(tmp_sql_pos2);
+            exec_tmp_sql->q_append(tmp_table_name, tmp_table_name_length);
+            exec_tmp_sql->length(tmp_sql_pos3);
+            exec_tmp_sql->q_append(tmp_table_name, tmp_table_name_length);
+            exec_tmp_sql->length(tmp_pos);
+          }
+        }
+      }
+    }
+  }
+  if (sql_type & SPIDER_SQL_TYPE_INSERT_SQL)
+  {
+    if (mysql_share->same_db_table_name || link_idx == first_link_idx)
+      exec_insert_sql = &insert_sql;
+    else {
+      exec_insert_sql = &result_list->insert_sqls[link_idx];
+      if (exec_insert_sql->copy(insert_sql))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      DBUG_PRINT("info",("spider exec_insert_sql=%s",
+        exec_insert_sql->c_ptr_safe()));
+      tmp_pos = exec_insert_sql->length();
+      exec_insert_sql->length(insert_table_name_pos);
+      append_table_name_with_adjusting(exec_insert_sql, link_idx,
+        sql_type);
+      exec_insert_sql->length(tmp_pos);
+      DBUG_PRINT("info",("spider exec_insert_sql->length=%u",
+        exec_insert_sql->length()));
+      DBUG_PRINT("info",("spider exec_insert_sql=%s",
+        exec_insert_sql->c_ptr_safe()));
+    }
+  }
+  if (sql_type & SPIDER_SQL_TYPE_BULK_UPDATE_SQL)
+  {
+    if (reading_from_bulk_tmp_table)
+    {
+      if (
+        mysql_share->same_db_table_name &&
+        share->link_statuses[all_link_idx] != SPIDER_LINK_STATUS_RECOVERY
+      ) {
+        exec_update_sql = &insert_sql;
+      } else if (!spider->result_list.upd_tmp_tbls[link_idx])
+      {
+        DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+      } else {
+        exec_update_sql = &spider->result_list.insert_sqls[link_idx];
+        if ((error_num = restore_sql_from_bulk_tmp_table(exec_update_sql,
+          spider->result_list.upd_tmp_tbls[link_idx])))
+        {
+          DBUG_RETURN(error_num);
+        }
+      }
+    } else {
+      if (
+        mysql_share->same_db_table_name &&
+        share->link_statuses[all_link_idx] != SPIDER_LINK_STATUS_RECOVERY
+      ) {
+        exec_update_sql = &update_sql;
+      } else {
+        exec_update_sql = &spider->result_list.update_sqls[link_idx];
+      }
+    }
+  } else if (sql_type &
+    (SPIDER_SQL_TYPE_UPDATE_SQL | SPIDER_SQL_TYPE_DELETE_SQL))
+  {
+    if (mysql_share->same_db_table_name || link_idx == first_link_idx)
+      exec_update_sql = &update_sql;
+    else {
+      exec_update_sql = &spider->result_list.update_sqls[link_idx];
+      if (exec_update_sql->copy(update_sql))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      tmp_pos = exec_update_sql->length();
+      exec_update_sql->length(table_name_pos);
+      append_table_name_with_adjusting(exec_update_sql, link_idx,
+        sql_type);
+      exec_update_sql->length(tmp_pos);
+    }
+  }
+  if (sql_type & SPIDER_SQL_TYPE_HANDLER)
+  {
+    if (spider->m_handler_id[link_idx] == ha_sql_handler_id)
+      exec_ha_sql = &ha_sql;
+    else {
+      exec_ha_sql = &result_list->sqls[link_idx];
+      if (exec_ha_sql->copy(ha_sql))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      else {
+        tmp_pos = exec_ha_sql->length();
+        exec_ha_sql->length(ha_table_name_pos);
+        append_table_name_with_adjusting(exec_ha_sql, link_idx,
+          SPIDER_SQL_TYPE_HANDLER);
+        exec_ha_sql->length(tmp_pos);
+      }
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::set_sql_for_exec(
+  spider_db_copy_table *tgt_ct,
+  ulong sql_type
+) {
+  spider_mbase_copy_table *mysql_ct = (spider_mbase_copy_table *) tgt_ct;
+  DBUG_ENTER("spider_mbase_handler::set_sql_for_exec");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+      exec_insert_sql = &mysql_ct->sql;
+      break;
+    default:
+      DBUG_ASSERT(0);
+      break;
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::execute_sql(
+  ulong sql_type,
+  SPIDER_CONN *conn,
+  int quick_mode,
+  int *need_mon
+) {
+  spider_string *tgt_sql;
+  uint tgt_length;
+  DBUG_ENTER("spider_mbase_handler::execute_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      DBUG_PRINT("info",("spider SPIDER_SQL_TYPE_SELECT_SQL"));
+      tgt_sql = exec_sql;
+      tgt_length = tgt_sql->length();
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+      DBUG_PRINT("info",("spider SPIDER_SQL_TYPE_SELECT_SQL"));
+      tgt_sql = exec_insert_sql;
+      tgt_length = tgt_sql->length();
+      break;
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      DBUG_PRINT("info",("spider %s",
+        sql_type == SPIDER_SQL_TYPE_UPDATE_SQL ? "SPIDER_SQL_TYPE_UPDATE_SQL" :
+        sql_type == SPIDER_SQL_TYPE_DELETE_SQL ? "SPIDER_SQL_TYPE_DELETE_SQL" :
+        "SPIDER_SQL_TYPE_BULK_UPDATE_SQL"
+      ));
+      tgt_sql = exec_update_sql;
+      tgt_length = tgt_sql->length();
+      break;
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      DBUG_PRINT("info",("spider SPIDER_SQL_TYPE_TMP_SQL"));
+      tgt_sql = exec_tmp_sql;
+      tgt_length = tgt_sql->length();
+      break;
+    case SPIDER_SQL_TYPE_DROP_TMP_TABLE_SQL:
+      DBUG_PRINT("info",("spider SPIDER_SQL_TYPE_DROP_TMP_TABLE_SQL"));
+      tgt_sql = exec_tmp_sql;
+      tgt_length = tmp_sql_pos5;
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      DBUG_PRINT("info",("spider SPIDER_SQL_TYPE_HANDLER"));
+      tgt_sql = exec_ha_sql;
+      tgt_length = tgt_sql->length();
+      break;
+    default:
+      /* nothing to do */
+      DBUG_PRINT("info",("spider default"));
+      DBUG_RETURN(0);
+  }
+  DBUG_RETURN(spider_db_query(
+    conn,
+    tgt_sql->ptr(),
+    tgt_length,
+    quick_mode,
+    need_mon
+  ));
+}
+
+int spider_mbase_handler::reset()
+{
+  DBUG_ENTER("spider_mbase_handler::reset");
+  DBUG_PRINT("info",("spider this=%p", this));
+  update_sql.length(0);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::sts_mode_exchange(
+  int sts_mode
+) {
+  DBUG_ENTER("spider_mbase_handler::sts_mode_exchange");
+  DBUG_PRINT("info",("spider sts_mode=%d", sts_mode));
+  DBUG_RETURN(sts_mode);
+}
+
+int spider_mbase_handler::show_table_status(
+  int link_idx,
+  int sts_mode,
+  uint flag
+) {
+  int error_num;
+  SPIDER_CONN *conn = spider->conns[link_idx];
+  SPIDER_DB_RESULT *res;
+  SPIDER_SHARE *share = spider->share;
+  uint pos = (2 * spider->conn_link_idx[link_idx]);
+  ulonglong auto_increment_value = 0;
+  DBUG_ENTER("spider_mbase_handler::show_table_status");
+  DBUG_PRINT("info",("spider sts_mode=%d", sts_mode));
+
+  if (sts_mode == 1)
+  {
+    pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+    pthread_mutex_lock(&conn->mta_conn_mutex);
+    SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    conn->need_mon = &spider->need_mons[link_idx];
+    DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = TRUE;
+    conn->mta_conn_mutex_unlock_later = TRUE;
+    conn->disable_connect_retry = TRUE;
+    spider_conn_set_timeout_from_share(conn, link_idx,
+      spider->wide_handler->trx->thd,
+      share);
+    if (
+      (error_num = spider_db_set_names(spider, conn, link_idx)) ||
+      (
+        spider_db_query(
+          conn,
+          mysql_share->show_table_status[0 + pos].ptr(),
+          mysql_share->show_table_status[0 + pos].length(),
+          -1,
+          &spider->need_mons[link_idx]) &&
+        (error_num = spider_db_errorno(conn))
+      )
+    ) {
+      if (
+        error_num == ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM &&
+        !conn->disable_reconnect
+      ) {
+        /* retry */
+        if ((error_num = spider_db_ping(spider, conn, link_idx)))
+        {
+          conn->disable_connect_retry = FALSE;
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+          DBUG_RETURN(error_num);
+        }
+        if ((error_num = spider_db_set_names(spider, conn, link_idx)))
+        {
+          conn->disable_connect_retry = FALSE;
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+          DBUG_RETURN(error_num);
+        }
+        spider_conn_set_timeout_from_share(conn, link_idx,
+          spider->wide_handler->trx->thd,
+          share);
+        if (spider_db_query(
+          conn,
+          mysql_share->show_table_status[0 + pos].ptr(),
+          mysql_share->show_table_status[0 + pos].length(),
+          -1,
+          &spider->need_mons[link_idx])
+        ) {
+          conn->disable_connect_retry = FALSE;
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          DBUG_RETURN(spider_db_errorno(conn));
+        }
+      } else {
+        conn->disable_connect_retry = FALSE;
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        DBUG_RETURN(error_num);
+      }
+    }
+    st_spider_db_request_key request_key;
+    request_key.spider_thread_id = spider->wide_handler->trx->spider_thread_id;
+    request_key.query_id = spider->wide_handler->trx->thd->query_id;
+    request_key.handler = spider;
+    request_key.request_id = 1;
+    request_key.next = NULL;
+    if (spider_param_dry_access())
+    {
+      conn->disable_connect_retry = FALSE;
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      DBUG_RETURN(0);
+    }
+    if (!(res = conn->db_conn->store_result(NULL, &request_key, &error_num)))
+    {
+      conn->disable_connect_retry = FALSE;
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      if (error_num)
+      {
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        DBUG_RETURN(error_num);
+      }
+      else if ((error_num = spider_db_errorno(conn)))
+        DBUG_RETURN(error_num);
+      else {
+        my_printf_error(ER_SPIDER_REMOTE_TABLE_NOT_FOUND_NUM,
+          ER_SPIDER_REMOTE_TABLE_NOT_FOUND_STR, MYF(0),
+          mysql_share->db_names_str[spider->conn_link_idx[link_idx]].ptr(),
+          mysql_share->table_names_str[spider->conn_link_idx[
+            link_idx]].ptr());
+        DBUG_RETURN(ER_SPIDER_REMOTE_TABLE_NOT_FOUND_NUM);
+      }
+    }
+    conn->disable_connect_retry = FALSE;
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+    error_num = res->fetch_table_status(
+      sts_mode,
+      share->stat
+    );
+    auto_increment_value = share->stat.auto_increment_value;
+    res->free_result();
+    delete res;
+    if (error_num)
+    {
+      switch (error_num)
+      {
+        case ER_SPIDER_REMOTE_TABLE_NOT_FOUND_NUM:
+          my_printf_error(ER_SPIDER_REMOTE_TABLE_NOT_FOUND_NUM,
+            ER_SPIDER_REMOTE_TABLE_NOT_FOUND_STR, MYF(0),
+            mysql_share->db_names_str[spider->conn_link_idx[link_idx]].ptr(),
+            mysql_share->table_names_str[spider->conn_link_idx[
+              link_idx]].ptr());
+          break;
+        case ER_SPIDER_INVALID_REMOTE_TABLE_INFO_NUM:
+          my_printf_error(ER_SPIDER_INVALID_REMOTE_TABLE_INFO_NUM,
+            ER_SPIDER_INVALID_REMOTE_TABLE_INFO_STR, MYF(0),
+            mysql_share->db_names_str[spider->conn_link_idx[link_idx]].ptr(),
+            mysql_share->table_names_str[spider->conn_link_idx[
+              link_idx]].ptr());
+          break;
+        default:
+          break;
+      }
+      DBUG_RETURN(error_num);
+    }
+  } else {
+    pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+    pthread_mutex_lock(&conn->mta_conn_mutex);
+    SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    conn->need_mon = &spider->need_mons[link_idx];
+    DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = TRUE;
+    conn->mta_conn_mutex_unlock_later = TRUE;
+    conn->disable_connect_retry = TRUE;
+    spider_conn_set_timeout_from_share(conn, link_idx,
+      spider->wide_handler->trx->thd,
+      share);
+    if (
+      (error_num = spider_db_set_names(spider, conn, link_idx)) ||
+      (
+        spider_db_query(
+          conn,
+          mysql_share->show_table_status[1 + pos].ptr(),
+          mysql_share->show_table_status[1 + pos].length(),
+          -1,
+          &spider->need_mons[link_idx]) &&
+        (error_num = spider_db_errorno(conn))
+      )
+    ) {
+      if (
+        error_num == ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM &&
+        !conn->disable_reconnect
+      ) {
+        /* retry */
+        if ((error_num = spider_db_ping(spider, conn, link_idx)))
+        {
+          conn->disable_connect_retry = FALSE;
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+          DBUG_RETURN(error_num);
+        }
+        if ((error_num = spider_db_set_names(spider, conn, link_idx)))
+        {
+          conn->disable_connect_retry = FALSE;
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+          DBUG_RETURN(error_num);
+        }
+        spider_conn_set_timeout_from_share(conn, link_idx,
+          spider->wide_handler->trx->thd,
+          share);
+        if (spider_db_query(
+          conn,
+          mysql_share->show_table_status[1 + pos].ptr(),
+          mysql_share->show_table_status[1 + pos].length(),
+          -1,
+          &spider->need_mons[link_idx])
+        ) {
+          conn->disable_connect_retry = FALSE;
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          DBUG_RETURN(spider_db_errorno(conn));
+        }
+      } else {
+        conn->disable_connect_retry = FALSE;
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        DBUG_RETURN(error_num);
+      }
+    }
+    st_spider_db_request_key request_key;
+    request_key.spider_thread_id = spider->wide_handler->trx->spider_thread_id;
+    request_key.query_id = spider->wide_handler->trx->thd->query_id;
+    request_key.handler = spider;
+    request_key.request_id = 1;
+    request_key.next = NULL;
+    if (spider_param_dry_access())
+    {
+      conn->disable_connect_retry = FALSE;
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      DBUG_RETURN(0);
+    }
+    if (!(res = conn->db_conn->store_result(NULL, &request_key, &error_num)))
+    {
+      conn->disable_connect_retry = FALSE;
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      if (error_num || (error_num = spider_db_errorno(conn)))
+        DBUG_RETURN(error_num);
+      else
+        DBUG_RETURN(ER_QUERY_ON_FOREIGN_DATA_SOURCE);
+    }
+    conn->disable_connect_retry = FALSE;
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+    error_num = res->fetch_table_status(
+      sts_mode,
+      share->stat
+    );
+    auto_increment_value = share->stat.auto_increment_value;
+    res->free_result();
+    delete res;
+    if (error_num)
+    {
+      switch (error_num)
+      {
+        case ER_SPIDER_REMOTE_TABLE_NOT_FOUND_NUM:
+          my_printf_error(ER_SPIDER_REMOTE_TABLE_NOT_FOUND_NUM,
+            ER_SPIDER_REMOTE_TABLE_NOT_FOUND_STR, MYF(0),
+            mysql_share->db_names_str[spider->conn_link_idx[link_idx]].ptr(),
+            mysql_share->table_names_str[spider->conn_link_idx[
+              link_idx]].ptr());
+          break;
+        case ER_SPIDER_INVALID_REMOTE_TABLE_INFO_NUM:
+          my_printf_error(ER_SPIDER_INVALID_REMOTE_TABLE_INFO_NUM,
+            ER_SPIDER_INVALID_REMOTE_TABLE_INFO_STR, MYF(0),
+            mysql_share->db_names_str[spider->conn_link_idx[link_idx]].ptr(),
+            mysql_share->table_names_str[spider->conn_link_idx[
+              link_idx]].ptr());
+          break;
+        default:
+          break;
+      }
+      DBUG_RETURN(error_num);
+    }
+  }
+  if ((error_num = ((spider_db_mbase *) conn->db_conn)->print_warnings(NULL)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  if (share->static_records_for_status != -1)
+  {
+    share->stat.records = (ha_rows) share->static_records_for_status;
+  }
+  if (share->static_mean_rec_length != -1)
+  {
+    share->stat.mean_rec_length = (ulong) share->static_mean_rec_length;
+  }
+  if (auto_increment_value > share->lgtm_tblhnd_share->auto_increment_value)
+  {
+    share->lgtm_tblhnd_share->auto_increment_value = auto_increment_value;
+    DBUG_PRINT("info",("spider auto_increment_value=%llu",
+      share->lgtm_tblhnd_share->auto_increment_value));
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::crd_mode_exchange(
+  int crd_mode
+) {
+  DBUG_ENTER("spider_mbase_handler::crd_mode_exchange");
+  DBUG_PRINT("info",("spider crd_mode=%d", crd_mode));
+  DBUG_RETURN(crd_mode);
+}
+
+int spider_mbase_handler::show_index(
+  int link_idx,
+  int crd_mode
+) {
+  int error_num;
+  SPIDER_CONN *conn = spider->conns[link_idx];
+  SPIDER_SHARE *share = spider->share;
+  TABLE *table = spider->get_table();
+  SPIDER_DB_RESULT *res;
+  int roop_count;
+  longlong *tmp_cardinality;
+  uint pos = (2 * spider->conn_link_idx[link_idx]);
+  DBUG_ENTER("spider_mbase_handler::show_index");
+  DBUG_PRINT("info",("spider crd_mode=%d", crd_mode));
+  if (crd_mode == 1)
+  {
+    pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+    pthread_mutex_lock(&conn->mta_conn_mutex);
+    SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    conn->need_mon = &spider->need_mons[link_idx];
+    DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = TRUE;
+    conn->mta_conn_mutex_unlock_later = TRUE;
+    spider_conn_set_timeout_from_share(conn, link_idx,
+      spider->wide_handler->trx->thd,
+      share);
+    if (
+      (error_num = spider_db_set_names(spider, conn, link_idx)) ||
+      (
+        spider_db_query(
+          conn,
+          mysql_share->show_index[0 + pos].ptr(),
+          mysql_share->show_index[0 + pos].length(),
+          -1,
+          &spider->need_mons[link_idx]) &&
+        (error_num = spider_db_errorno(conn))
+      )
+    ) {
+      if (
+        error_num == ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM &&
+        !conn->disable_reconnect
+      ) {
+        /* retry */
+        if ((error_num = spider_db_ping(spider, conn, link_idx)))
+        {
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+          DBUG_RETURN(error_num);
+        }
+        if ((error_num = spider_db_set_names(spider, conn, link_idx)))
+        {
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+          DBUG_RETURN(error_num);
+        }
+        spider_conn_set_timeout_from_share(conn, link_idx,
+          spider->wide_handler->trx->thd,
+          share);
+        if (spider_db_query(
+          conn,
+          mysql_share->show_index[0 + pos].ptr(),
+          mysql_share->show_index[0 + pos].length(),
+          -1,
+          &spider->need_mons[link_idx])
+        ) {
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          DBUG_RETURN(spider_db_errorno(conn));
+        }
+      } else {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        DBUG_RETURN(error_num);
+      }
+    }
+    st_spider_db_request_key request_key;
+    request_key.spider_thread_id = spider->wide_handler->trx->spider_thread_id;
+    request_key.query_id = spider->wide_handler->trx->thd->query_id;
+    request_key.handler = spider;
+    request_key.request_id = 1;
+    request_key.next = NULL;
+    if (!(res = conn->db_conn->store_result(NULL, &request_key, &error_num)))
+    {
+      if (error_num || (error_num = spider_db_errorno(conn)))
+      {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        DBUG_RETURN(error_num);
+      }
+      /* no record is ok */
+    }
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+    if (res)
+    {
+      error_num = res->fetch_table_cardinality(
+        crd_mode,
+        table,
+        share->cardinality,
+        share->cardinality_upd,
+        share->bitmap_size
+      );
+    }
+    for (roop_count = 0, tmp_cardinality = share->cardinality;
+      roop_count < (int) table->s->fields;
+      roop_count++, tmp_cardinality++)
+    {
+      if (!spider_bit_is_set(share->cardinality_upd, roop_count))
+      {
+        DBUG_PRINT("info",
+          ("spider uninitialized column cardinality id=%d", roop_count));
+        *tmp_cardinality = -1;
+      }
+    }
+    if (res)
+    {
+      res->free_result();
+      delete res;
+    }
+    if (error_num)
+    {
+      switch (error_num)
+      {
+        case ER_SPIDER_REMOTE_TABLE_NOT_FOUND_NUM:
+          my_printf_error(ER_SPIDER_REMOTE_TABLE_NOT_FOUND_NUM,
+            ER_SPIDER_REMOTE_TABLE_NOT_FOUND_STR, MYF(0),
+            mysql_share->db_names_str[spider->conn_link_idx[link_idx]].ptr(),
+            mysql_share->table_names_str[spider->conn_link_idx[
+              link_idx]].ptr());
+          break;
+        case ER_SPIDER_INVALID_REMOTE_TABLE_INFO_NUM:
+          my_printf_error(ER_SPIDER_INVALID_REMOTE_TABLE_INFO_NUM,
+            ER_SPIDER_INVALID_REMOTE_TABLE_INFO_STR, MYF(0),
+            mysql_share->db_names_str[spider->conn_link_idx[link_idx]].ptr(),
+            mysql_share->table_names_str[spider->conn_link_idx[
+              link_idx]].ptr());
+          break;
+        default:
+          break;
+      }
+      DBUG_RETURN(error_num);
+    }
+  } else {
+    pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+    pthread_mutex_lock(&conn->mta_conn_mutex);
+    SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    conn->need_mon = &spider->need_mons[link_idx];
+    DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = TRUE;
+    conn->mta_conn_mutex_unlock_later = TRUE;
+    spider_conn_set_timeout_from_share(conn, link_idx,
+      spider->wide_handler->trx->thd,
+      share);
+    if (
+      (error_num = spider_db_set_names(spider, conn, link_idx)) ||
+      (
+        spider_db_query(
+          conn,
+          mysql_share->show_index[1 + pos].ptr(),
+          mysql_share->show_index[1 + pos].length(),
+          -1,
+          &spider->need_mons[link_idx]) &&
+        (error_num = spider_db_errorno(conn))
+      )
+    ) {
+      if (
+        error_num == ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM &&
+        !conn->disable_reconnect
+      ) {
+        /* retry */
+        if ((error_num = spider_db_ping(spider, conn, link_idx)))
+        {
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+          DBUG_RETURN(error_num);
+        }
+        if ((error_num = spider_db_set_names(spider, conn, link_idx)))
+        {
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+          DBUG_RETURN(error_num);
+        }
+        spider_conn_set_timeout_from_share(conn, link_idx,
+          spider->wide_handler->trx->thd,
+          share);
+        if (spider_db_query(
+          conn,
+          mysql_share->show_index[1 + pos].ptr(),
+          mysql_share->show_index[1 + pos].length(),
+          -1,
+          &spider->need_mons[link_idx])
+        ) {
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          DBUG_RETURN(spider_db_errorno(conn));
+        }
+      } else {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        DBUG_RETURN(error_num);
+      }
+    }
+    st_spider_db_request_key request_key;
+    request_key.spider_thread_id = spider->wide_handler->trx->spider_thread_id;
+    request_key.query_id = spider->wide_handler->trx->thd->query_id;
+    request_key.handler = spider;
+    request_key.request_id = 1;
+    request_key.next = NULL;
+    if (!(res = conn->db_conn->store_result(NULL, &request_key, &error_num)))
+    {
+      if (error_num || (error_num = spider_db_errorno(conn)))
+      {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        DBUG_RETURN(error_num);
+      }
+      /* no record is ok */
+    }
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+    if (res)
+    {
+      error_num = res->fetch_table_cardinality(
+        crd_mode,
+        table,
+        share->cardinality,
+        share->cardinality_upd,
+        share->bitmap_size
+      );
+    }
+    for (roop_count = 0, tmp_cardinality = share->cardinality;
+      roop_count < (int) table->s->fields;
+      roop_count++, tmp_cardinality++)
+    {
+      if (!spider_bit_is_set(share->cardinality_upd, roop_count))
+      {
+        DBUG_PRINT("info",
+          ("spider uninitialized column cardinality id=%d", roop_count));
+        *tmp_cardinality = -1;
+      }
+    }
+    if (res)
+    {
+      res->free_result();
+      delete res;
+    }
+    if (error_num)
+    {
+      switch (error_num)
+      {
+        case ER_SPIDER_REMOTE_TABLE_NOT_FOUND_NUM:
+          my_printf_error(ER_SPIDER_REMOTE_TABLE_NOT_FOUND_NUM,
+            ER_SPIDER_REMOTE_TABLE_NOT_FOUND_STR, MYF(0),
+            mysql_share->db_names_str[spider->conn_link_idx[link_idx]].ptr(),
+            mysql_share->table_names_str[spider->conn_link_idx[
+              link_idx]].ptr());
+          break;
+        case ER_SPIDER_INVALID_REMOTE_TABLE_INFO_NUM:
+          my_printf_error(ER_SPIDER_INVALID_REMOTE_TABLE_INFO_NUM,
+            ER_SPIDER_INVALID_REMOTE_TABLE_INFO_STR, MYF(0),
+            mysql_share->db_names_str[spider->conn_link_idx[link_idx]].ptr(),
+            mysql_share->table_names_str[spider->conn_link_idx[
+              link_idx]].ptr());
+          break;
+        default:
+          break;
+      }
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::simple_action(
+  uint simple_action,
+  int link_idx
+) {
+  int error_num;
+  SPIDER_CONN *conn = spider->conns[link_idx];
+  SPIDER_DB_RESULT *res;
+  SPIDER_SHARE *share = spider->share;
+  uint pos = spider->conn_link_idx[link_idx];
+  spider_string *str = NULL;
+  DBUG_ENTER("spider_mbase_handler::simple_action");
+  switch (simple_action)
+  {
+    case SPIDER_SIMPLE_RECORDS:
+      DBUG_PRINT("info",("spider simple records"));
+      str = &mysql_share->show_records[pos];
+      break;
+#ifdef HA_HAS_CHECKSUM_EXTENDED
+    case SPIDER_SIMPLE_CHECKSUM_TABLE:
+      DBUG_PRINT("info",("spider simple checksum_table"));
+      str = &spider->result_list.sqls[link_idx];
+      str->length(0);
+      if (str->reserve(
+        SPIDER_SQL_CHECKSUM_TABLE_LEN +
+        mysql_share->db_nm_max_length +
+        SPIDER_SQL_DOT_LEN +
+        mysql_share->table_nm_max_length +
+        /* SPIDER_SQL_NAME_QUOTE_LEN */ 4 +
+        ((spider->action_flags & T_QUICK) ? SPIDER_SQL_SQL_QUICK_LEN : 0) +
+        ((spider->action_flags & T_EXTEND) ? SPIDER_SQL_SQL_EXTENDED_LEN : 0)
+      ))
+      {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+      str->q_append(SPIDER_SQL_CHECKSUM_TABLE_STR,
+        SPIDER_SQL_CHECKSUM_TABLE_LEN);
+      mysql_share->append_table_name(str, pos);
+      if (spider->action_flags & T_QUICK)
+      {
+        str->q_append(SPIDER_SQL_SQL_QUICK_STR, SPIDER_SQL_SQL_QUICK_LEN);
+      }
+      if (spider->action_flags & T_EXTEND)
+      {
+        str->q_append(SPIDER_SQL_SQL_EXTENDED_STR,
+          SPIDER_SQL_SQL_EXTENDED_LEN);
+      }
+      break;
+#endif
+    default:
+      DBUG_ASSERT(0);
+      DBUG_RETURN(0);
+  }
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = &spider->need_mons[link_idx];
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  spider_conn_set_timeout_from_share(conn, link_idx,
+    spider->wide_handler->trx->thd,
+    share);
+  if (
+    (error_num = spider_db_set_names(spider, conn, link_idx)) ||
+    (
+      spider_db_query(
+        conn,
+        str->ptr(),
+        str->length(),
+        -1,
+        &spider->need_mons[link_idx]) &&
+      (error_num = spider_db_errorno(conn))
+    )
+  ) {
+    if (
+      error_num == ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM &&
+      !conn->disable_reconnect
+    ) {
+      /* retry */
+      if ((error_num = spider_db_ping(spider, conn, link_idx)))
+      {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        DBUG_PRINT("info", ("spider error_num=%d 1", error_num));
+        DBUG_RETURN(error_num);
+      }
+      if ((error_num = spider_db_set_names(spider, conn, link_idx)))
+      {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        DBUG_PRINT("info", ("spider error_num=%d 2", error_num));
+        DBUG_RETURN(error_num);
+      }
+      spider_conn_set_timeout_from_share(conn, link_idx,
+        spider->wide_handler->trx->thd,
+        share);
+      if (spider_db_query(
+        conn,
+        str->ptr(),
+        str->length(),
+        -1,
+        &spider->need_mons[link_idx])
+      ) {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        DBUG_PRINT("info", ("spider error_num=%d 3", error_num));
+        DBUG_RETURN(spider_db_errorno(conn));
+      }
+    } else {
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      DBUG_PRINT("info", ("spider error_num=%d 4", error_num));
+      DBUG_RETURN(error_num);
+    }
+  }
+  st_spider_db_request_key request_key;
+  request_key.spider_thread_id = spider->wide_handler->trx->spider_thread_id;
+  request_key.query_id = spider->wide_handler->trx->thd->query_id;
+  request_key.handler = spider;
+  request_key.request_id = 1;
+  request_key.next = NULL;
+  if (!(res = conn->db_conn->store_result(NULL, &request_key, &error_num)))
+  {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    if (error_num)
+    {
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      DBUG_PRINT("info", ("spider error_num=%d 5", error_num));
+      DBUG_RETURN(error_num);
+    }
+    else if ((error_num = spider_db_errorno(conn)))
+    {
+      DBUG_PRINT("info", ("spider error_num=%d 6", error_num));
+      DBUG_RETURN(error_num);
+    } else {
+      DBUG_PRINT("info", ("spider error_num=%d 7",
+        ER_QUERY_ON_FOREIGN_DATA_SOURCE));
+      DBUG_RETURN(ER_QUERY_ON_FOREIGN_DATA_SOURCE);
+    }
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  switch (simple_action)
+  {
+    case SPIDER_SIMPLE_RECORDS:
+      DBUG_PRINT("info",("spider simple records"));
+      error_num = res->fetch_table_records(1, spider->table_rows);
+      break;
+#ifdef HA_HAS_CHECKSUM_EXTENDED
+    case SPIDER_SIMPLE_CHECKSUM_TABLE:
+      DBUG_PRINT("info",("spider simple checksum_table"));
+      error_num = res->fetch_table_checksum(spider);
+      break;
+#endif
+    default:
+      DBUG_ASSERT(0);
+      break;
+  }
+  res->free_result();
+  delete res;
+  if (error_num)
+  {
+    DBUG_PRINT("info", ("spider error_num=%d 7", error_num));
+    DBUG_RETURN(error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::show_records(
+  int link_idx
+) {
+  int error_num;
+  DBUG_ENTER("spider_mbase_handler::show_records");
+  error_num = simple_action(SPIDER_SIMPLE_RECORDS, link_idx);
+  if (error_num)
+  {
+    DBUG_PRINT("info", ("spider error_num=%d", error_num));
+    DBUG_RETURN(error_num);
+  }
+  spider->wide_handler->trx->direct_aggregate_count++;
+  DBUG_RETURN(0);
+}
+
+#ifdef HA_HAS_CHECKSUM_EXTENDED
+int spider_mbase_handler::checksum_table(
+  int link_idx
+) {
+  DBUG_ENTER("spider_mbase_handler::checksum_table");
+  DBUG_RETURN(simple_action(SPIDER_SIMPLE_CHECKSUM_TABLE, link_idx));
+  DBUG_RETURN(0);
+}
+#endif
+
+int spider_mbase_handler::show_last_insert_id(
+  int link_idx,
+  ulonglong &last_insert_id
+) {
+  SPIDER_CONN *conn = spider->conns[link_idx];
+  DBUG_ENTER("spider_mbase_handler::show_last_insert_id");
+  last_insert_id = conn->db_conn->last_insert_id();
+  DBUG_RETURN(0);
+}
+
+ha_rows spider_mbase_handler::explain_select(
+  const key_range *start_key,
+  const key_range *end_key,
+  int link_idx
+) {
+  int error_num;
+  SPIDER_CONN *conn = spider->conns[link_idx];
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  spider_string *str = &result_list->sqls[link_idx];
+  SPIDER_DB_RESULT *res;
+  ha_rows rows;
+  spider_db_handler *dbton_hdl = spider->dbton_handler[conn->dbton_id];
+  DBUG_ENTER("spider_mbase_handler::explain_select");
+  if ((error_num = dbton_hdl->append_explain_select_part(
+    start_key, end_key, SPIDER_SQL_TYPE_OTHER_SQL, link_idx)))
+  {
+    my_errno = error_num;
+    DBUG_RETURN(HA_POS_ERROR);
+  }
+
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = &spider->need_mons[link_idx];
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  spider_conn_set_timeout_from_share(conn, link_idx,
+    spider->wide_handler->trx->thd,
+    spider->share);
+  if (
+    (error_num = spider_db_set_names(spider, conn, link_idx)) ||
+    (
+      spider_db_query(
+        conn,
+        str->ptr(),
+        str->length(),
+        -1,
+        &spider->need_mons[link_idx]) &&
+      (error_num = spider_db_errorno(conn))
+    )
+  ) {
+    if (
+      error_num == ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM &&
+      !conn->disable_reconnect
+    ) {
+      /* retry */
+      if ((error_num = spider_db_ping(spider, conn, link_idx)))
+      {
+        if (spider->check_error_mode(error_num))
+          my_errno = error_num;
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        DBUG_RETURN(HA_POS_ERROR);
+      }
+      if ((error_num = spider_db_set_names(spider, conn, link_idx)))
+      {
+        if (spider->check_error_mode(error_num))
+          my_errno = error_num;
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        DBUG_RETURN(HA_POS_ERROR);
+      }
+      spider_conn_set_timeout_from_share(conn, link_idx,
+        spider->wide_handler->trx->thd,
+        spider->share);
+      if (spider_db_query(
+        conn,
+        str->ptr(),
+        str->length(),
+        -1,
+        &spider->need_mons[link_idx])
+      ) {
+        error_num = spider_db_errorno(conn);
+        if (spider->check_error_mode(error_num))
+          my_errno = error_num;
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        DBUG_RETURN(HA_POS_ERROR);
+      }
+    } else {
+      if (spider->check_error_mode(error_num))
+        my_errno = error_num;
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      DBUG_RETURN(HA_POS_ERROR);
+    }
+  }
+  st_spider_db_request_key request_key;
+  request_key.spider_thread_id = spider->wide_handler->trx->spider_thread_id;
+  request_key.query_id = spider->wide_handler->trx->thd->query_id;
+  request_key.handler = spider;
+  request_key.request_id = 1;
+  request_key.next = NULL;
+  if (!(res = conn->db_conn->store_result(NULL, &request_key, &error_num)))
+  {
+    if (error_num || (error_num = spider_db_errorno(conn)))
+    {
+      if (spider->check_error_mode(error_num))
+        my_errno = error_num;
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      DBUG_RETURN(HA_POS_ERROR);
+    } else {
+      my_errno = ER_QUERY_ON_FOREIGN_DATA_SOURCE;
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      DBUG_RETURN(HA_POS_ERROR);
+    }
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  error_num = res->fetch_table_records(
+    2,
+    rows
+  );
+  res->free_result();
+  delete res;
+  if (error_num)
+  {
+    my_errno = error_num;
+    DBUG_RETURN(HA_POS_ERROR);
+  }
+  DBUG_RETURN(rows);
+}
+
+int spider_mbase_handler::lock_tables(
+  int link_idx
+) {
+  int error_num;
+  SPIDER_CONN *conn = spider->conns[link_idx];
+  spider_string *str = &sql;
+  DBUG_ENTER("spider_mbase_handler::lock_tables");
+  str->length(0);
+  if ((error_num = conn->db_conn->append_lock_tables(str)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  if (str->length())
+  {
+    pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+    pthread_mutex_lock(&conn->mta_conn_mutex);
+    SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    conn->need_mon = &spider->need_mons[link_idx];
+    DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = TRUE;
+    conn->mta_conn_mutex_unlock_later = TRUE;
+    if ((error_num = spider_db_set_names(spider, conn, link_idx)))
+    {
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      DBUG_RETURN(error_num);
+    }
+    spider_conn_set_timeout_from_share(conn, link_idx,
+      spider->wide_handler->trx->thd,
+      spider->share);
+    if (spider_db_query(
+      conn,
+      str->ptr(),
+      str->length(),
+      -1,
+      &spider->need_mons[link_idx])
+    ) {
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      DBUG_RETURN(spider_db_errorno(conn));
+    }
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+  }
+  if (!conn->table_locked)
+  {
+    conn->table_locked = TRUE;
+    spider->wide_handler->trx->locked_connections++;
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::unlock_tables(
+  int link_idx
+) {
+  int error_num;
+  SPIDER_CONN *conn = spider->conns[link_idx];
+  DBUG_ENTER("spider_mbase_handler::unlock_tables");
+  if (conn->table_locked)
+  {
+    spider_string *str = &sql;
+    conn->table_locked = FALSE;
+    spider->wide_handler->trx->locked_connections--;
+
+    str->length(0);
+    if ((error_num = conn->db_conn->append_unlock_tables(str)))
+    {
+      DBUG_RETURN(error_num);
+    }
+    if (str->length())
+    {
+      spider_conn_set_timeout_from_share(conn, link_idx,
+        spider->wide_handler->trx->thd,
+        spider->share);
+      pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+      pthread_mutex_lock(&conn->mta_conn_mutex);
+      SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      conn->need_mon = &spider->need_mons[link_idx];
+      DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = TRUE;
+      conn->mta_conn_mutex_unlock_later = TRUE;
+      if (spider_db_query(
+        conn,
+        str->ptr(),
+        str->length(),
+        -1,
+        &spider->need_mons[link_idx])
+      ) {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        DBUG_RETURN(spider_db_errorno(conn));
+      }
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::disable_keys(
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  int error_num;
+  SPIDER_SHARE *share = spider->share;
+  spider_string *str = &spider->result_list.sqls[link_idx];
+  DBUG_ENTER("spider_mbase_handler::disable_keys");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str->length(0);
+  if ((error_num = append_disable_keys_part(SPIDER_SQL_TYPE_OTHER_HS,
+    link_idx)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = &spider->need_mons[link_idx];
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  if ((error_num = spider_db_set_names(spider, conn, link_idx)))
+  {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+    DBUG_RETURN(error_num);
+  }
+  spider_conn_set_timeout_from_share(conn, link_idx,
+    spider->wide_handler->trx->thd,
+    share);
+  if (spider_db_query(
+    conn,
+    str->ptr(),
+    str->length(),
+    -1,
+    &spider->need_mons[link_idx])
+  ) {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    error_num = spider_db_errorno(conn);
+    DBUG_RETURN(error_num);
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::enable_keys(
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  int error_num;
+  SPIDER_SHARE *share = spider->share;
+  spider_string *str = &spider->result_list.sqls[link_idx];
+  DBUG_ENTER("spider_mbase_handler::enable_keys");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str->length(0);
+  if ((error_num = append_enable_keys_part(SPIDER_SQL_TYPE_OTHER_HS,
+    link_idx)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = &spider->need_mons[link_idx];
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  if ((error_num = spider_db_set_names(spider, conn, link_idx)))
+  {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+    DBUG_RETURN(error_num);
+  }
+  spider_conn_set_timeout_from_share(conn, link_idx,
+    spider->wide_handler->trx->thd,
+    share);
+  if (spider_db_query(
+    conn,
+    str->ptr(),
+    str->length(),
+    -1,
+    &spider->need_mons[link_idx])
+  ) {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    error_num = spider_db_errorno(conn);
+    DBUG_RETURN(error_num);
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::check_table(
+  SPIDER_CONN *conn,
+  int link_idx,
+  HA_CHECK_OPT* check_opt
+) {
+  int error_num;
+  SPIDER_SHARE *share = spider->share;
+  spider_string *str = &spider->result_list.sqls[link_idx];
+  DBUG_ENTER("spider_mbase_handler::check_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str->length(0);
+  if ((error_num = append_check_table_part(SPIDER_SQL_TYPE_OTHER_HS,
+    link_idx, check_opt)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = &spider->need_mons[link_idx];
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  if ((error_num = spider_db_set_names(spider, conn, link_idx)))
+  {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+    DBUG_RETURN(error_num);
+  }
+  spider_conn_set_timeout_from_share(conn, link_idx,
+    spider->wide_handler->trx->thd,
+    share);
+  if (spider_db_query(
+    conn,
+    str->ptr(),
+    str->length(),
+    -1,
+    &spider->need_mons[link_idx])
+  ) {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    error_num = spider_db_errorno(conn);
+    DBUG_RETURN(error_num);
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::repair_table(
+  SPIDER_CONN *conn,
+  int link_idx,
+  HA_CHECK_OPT* check_opt
+) {
+  int error_num;
+  SPIDER_SHARE *share = spider->share;
+  spider_string *str = &spider->result_list.sqls[link_idx];
+  DBUG_ENTER("spider_mbase_handler::repair_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str->length(0);
+  if ((error_num = append_repair_table_part(SPIDER_SQL_TYPE_OTHER_HS,
+    link_idx, check_opt)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = &spider->need_mons[link_idx];
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  if ((error_num = spider_db_set_names(spider, conn, link_idx)))
+  {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+    DBUG_RETURN(error_num);
+  }
+  spider_conn_set_timeout_from_share(conn, link_idx,
+    spider->wide_handler->trx->thd,
+    share);
+  if (spider_db_query(
+    conn,
+    str->ptr(),
+    str->length(),
+    -1,
+    &spider->need_mons[link_idx])
+  ) {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    error_num = spider_db_errorno(conn);
+    DBUG_RETURN(error_num);
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::analyze_table(
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  int error_num;
+  SPIDER_SHARE *share = spider->share;
+  spider_string *str = &spider->result_list.sqls[link_idx];
+  DBUG_ENTER("spider_mbase_handler::analyze_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str->length(0);
+  if ((error_num = append_analyze_table_part(SPIDER_SQL_TYPE_OTHER_HS,
+    link_idx)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = &spider->need_mons[link_idx];
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  if ((error_num = spider_db_set_names(spider, conn, link_idx)))
+  {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+    DBUG_RETURN(error_num);
+  }
+  spider_conn_set_timeout_from_share(conn, link_idx,
+    spider->wide_handler->trx->thd,
+    share);
+  if (spider_db_query(
+    conn,
+    str->ptr(),
+    str->length(),
+    -1,
+    &spider->need_mons[link_idx])
+  ) {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    error_num = spider_db_errorno(conn);
+    DBUG_RETURN(error_num);
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::optimize_table(
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  int error_num;
+  SPIDER_SHARE *share = spider->share;
+  spider_string *str = &spider->result_list.sqls[link_idx];
+  DBUG_ENTER("spider_mbase_handler::optimize_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str->length(0);
+  if ((error_num = append_optimize_table_part(SPIDER_SQL_TYPE_OTHER_HS,
+    link_idx)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = &spider->need_mons[link_idx];
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  if ((error_num = spider_db_set_names(spider, conn, link_idx)))
+  {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+    DBUG_RETURN(error_num);
+  }
+  spider_conn_set_timeout_from_share(conn, link_idx,
+    spider->wide_handler->trx->thd,
+    share);
+  if (spider_db_query(
+    conn,
+    str->ptr(),
+    str->length(),
+    -1,
+    &spider->need_mons[link_idx])
+  ) {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    error_num = spider_db_errorno(conn);
+    DBUG_RETURN(error_num);
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::flush_tables(
+  SPIDER_CONN *conn,
+  int link_idx,
+  bool lock
+) {
+  int error_num;
+  SPIDER_SHARE *share = spider->share;
+  spider_string *str = &spider->result_list.sqls[link_idx];
+  DBUG_ENTER("spider_mbase_handler::flush_tables");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str->length(0);
+  if ((error_num = append_flush_tables_part(SPIDER_SQL_TYPE_OTHER_HS,
+    link_idx, lock)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  spider_conn_set_timeout_from_share(conn, link_idx,
+    spider->wide_handler->trx->thd,
+    share);
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = &spider->need_mons[link_idx];
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  if (spider_db_query(
+    conn,
+    str->ptr(),
+    str->length(),
+    -1,
+    &spider->need_mons[link_idx])
+  ) {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    error_num = spider_db_errorno(conn);
+    DBUG_RETURN(error_num);
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::flush_logs(
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  int error_num;
+  SPIDER_SHARE *share = spider->share;
+  DBUG_ENTER("spider_mbase_handler::flush_logs");
+  DBUG_PRINT("info",("spider this=%p", this));
+  spider_conn_set_timeout_from_share(conn, link_idx,
+    spider->wide_handler->trx->thd,
+    share);
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = &spider->need_mons[link_idx];
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  if (spider_db_query(
+    conn,
+    SPIDER_SQL_FLUSH_LOGS_STR,
+    SPIDER_SQL_FLUSH_LOGS_LEN,
+    -1,
+    &spider->need_mons[link_idx])
+  ) {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    error_num = spider_db_errorno(conn);
+    DBUG_RETURN(error_num);
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::insert_opened_handler(
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  spider_db_mbase *db_conn = (spider_db_mbase *) conn->db_conn;
+  SPIDER_LINK_FOR_HASH *tmp_link_for_hash = &link_for_hash[link_idx];
+  DBUG_ASSERT(tmp_link_for_hash->spider == spider);
+  DBUG_ASSERT(tmp_link_for_hash->link_idx == link_idx);
+  uint old_elements = db_conn->handler_open_array.max_element;
+  DBUG_ENTER("spider_mbase_handler::insert_opened_handler");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (insert_dynamic(&db_conn->handler_open_array,
+    (uchar*) &tmp_link_for_hash))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  if (db_conn->handler_open_array.max_element > old_elements)
+  {
+    spider_alloc_calc_mem(spider_current_trx,
+      db_conn->handler_open_array,
+      (db_conn->handler_open_array.max_element - old_elements) *
+      db_conn->handler_open_array.size_of_element);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::delete_opened_handler(
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  spider_db_mbase *db_conn = (spider_db_mbase *) conn->db_conn;
+  uint roop_count, elements = db_conn->handler_open_array.elements;
+  SPIDER_LINK_FOR_HASH *tmp_link_for_hash;
+  DBUG_ENTER("spider_mbase_handler::delete_opened_handler");
+  DBUG_PRINT("info",("spider this=%p", this));
+  for (roop_count = 0; roop_count < elements; roop_count++)
+  {
+    get_dynamic(&db_conn->handler_open_array, (uchar *) &tmp_link_for_hash,
+      roop_count);
+    if (tmp_link_for_hash == &link_for_hash[link_idx])
+    {
+      delete_dynamic_element(&db_conn->handler_open_array, roop_count);
+      break;
+    }
+  }
+  DBUG_ASSERT(roop_count < elements);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::sync_from_clone_source(
+  spider_db_handler *dbton_hdl
+) {
+  DBUG_ENTER("spider_mbase_handler::sync_from_clone_source");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(0);
+}
+
+bool spider_mbase_handler::support_use_handler(
+  int use_handler
+) {
+  DBUG_ENTER("spider_mbase_handler::support_use_handler");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(TRUE);
+}
+
+void spider_mbase_handler::minimum_select_bitmap_create()
+{
+  TABLE *table = spider->get_table();
+  Field **field_p;
+  DBUG_ENTER("spider_mbase_handler::minimum_select_bitmap_create");
+  DBUG_PRINT("info",("spider this=%p", this));
+  memset(minimum_select_bitmap, 0, no_bytes_in_map(table->read_set));
+  if (
+    spider->use_index_merge ||
+#ifdef HA_CAN_BULK_ACCESS
+    (spider->is_clone && !spider->is_bulk_access_clone)
+#else
+    spider->is_clone
+#endif
+  ) {
+    /* need preparing for cmp_ref */
+    TABLE_SHARE *table_share = table->s;
+    if (
+      table_share->primary_key == MAX_KEY
+    ) {
+      /* need all columns */
+      memset(minimum_select_bitmap, 0xFF, no_bytes_in_map(table->read_set));
+      DBUG_VOID_RETURN;
+    } else {
+      /* need primary key columns */
+      uint roop_count;
+      KEY *key_info;
+      KEY_PART_INFO *key_part;
+      Field *field;
+      key_info = &table_share->key_info[table_share->primary_key];
+      key_part = key_info->key_part;
+      for (roop_count = 0;
+        roop_count < spider_user_defined_key_parts(key_info);
+        roop_count++)
+      {
+        field = key_part[roop_count].field;
+        spider_set_bit(minimum_select_bitmap, field->field_index);
+      }
+    }
+  }
+  DBUG_PRINT("info",("spider searched_bitmap=%p",
+    spider->wide_handler->searched_bitmap));
+  for (field_p = table->field; *field_p; field_p++)
+  {
+    uint field_index = (*field_p)->field_index;
+    DBUG_PRINT("info",("spider field_index=%u", field_index));
+    DBUG_PRINT("info",("spider ft_discard_bitmap=%s",
+      spider_bit_is_set(spider->wide_handler->ft_discard_bitmap, field_index) ?
+        "TRUE" : "FALSE"));
+    DBUG_PRINT("info",("spider searched_bitmap=%s",
+      spider_bit_is_set(spider->wide_handler->searched_bitmap, field_index) ?
+        "TRUE" : "FALSE"));
+    DBUG_PRINT("info",("spider read_set=%s",
+      bitmap_is_set(table->read_set, field_index) ?
+        "TRUE" : "FALSE"));
+    DBUG_PRINT("info",("spider write_set=%s",
+      bitmap_is_set(table->write_set, field_index) ?
+        "TRUE" : "FALSE"));
+    if (
+      spider_bit_is_set(spider->wide_handler->ft_discard_bitmap, field_index) &&
+      (
+        spider_bit_is_set(spider->wide_handler->searched_bitmap, field_index) ||
+        bitmap_is_set(table->read_set, field_index) ||
+        bitmap_is_set(table->write_set, field_index)
+      )
+    ) {
+      spider_set_bit(minimum_select_bitmap, field_index);
+    }
+  }
+  DBUG_VOID_RETURN;
+}
+
+bool spider_mbase_handler::minimum_select_bit_is_set(
+  uint field_index
+) {
+  DBUG_ENTER("spider_mbase_handler::minimum_select_bit_is_set");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider field_index=%u", field_index));
+  DBUG_PRINT("info",("spider minimum_select_bitmap=%s",
+    spider_bit_is_set(minimum_select_bitmap, field_index) ?
+      "TRUE" : "FALSE"));
+  DBUG_RETURN(spider_bit_is_set(minimum_select_bitmap, field_index));
+}
+
+void spider_mbase_handler::copy_minimum_select_bitmap(
+  uchar *bitmap
+) {
+  int roop_count;
+  TABLE *table = spider->get_table();
+  DBUG_ENTER("spider_mbase_handler::copy_minimum_select_bitmap");
+  for (roop_count = 0;
+    roop_count < (int) ((table->s->fields + 7) / 8);
+    roop_count++)
+  {
+    bitmap[roop_count] =
+      minimum_select_bitmap[roop_count];
+    DBUG_PRINT("info",("spider roop_count=%d", roop_count));
+    DBUG_PRINT("info",("spider bitmap=%d",
+      bitmap[roop_count]));
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_mbase_handler::init_union_table_name_pos()
+{
+  DBUG_ENTER("spider_mbase_handler::init_union_table_name_pos");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!union_table_name_pos_first)
+  {
+    if (!spider_bulk_malloc(spider_current_trx, 236, MYF(MY_WME),
+      &union_table_name_pos_first, (uint) (sizeof(SPIDER_INT_HLD)),
+      NullS)
+    ) {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    union_table_name_pos_first->next = NULL;
+  }
+  union_table_name_pos_current = union_table_name_pos_first;
+  union_table_name_pos_current->tgt_num = 0;
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::set_union_table_name_pos()
+{
+  DBUG_ENTER("spider_mbase_handler::set_union_table_name_pos");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (union_table_name_pos_current->tgt_num >= SPIDER_INT_HLD_TGT_SIZE)
+  {
+    if (!union_table_name_pos_current->next)
+    {
+      if (!spider_bulk_malloc(spider_current_trx, 237, MYF(MY_WME),
+        &union_table_name_pos_current->next, (uint) (sizeof(SPIDER_INT_HLD)),
+        NullS)
+      ) {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+      union_table_name_pos_current->next->next = NULL;
+    }
+    union_table_name_pos_current = union_table_name_pos_current->next;
+    union_table_name_pos_current->tgt_num = 0;
+  }
+  union_table_name_pos_current->tgt[union_table_name_pos_current->tgt_num] =
+    table_name_pos;
+  ++union_table_name_pos_current->tgt_num;
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::reset_union_table_name(
+  spider_string *str,
+  int link_idx,
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_mbase_handler::reset_union_table_name");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!union_table_name_pos_current)
+    DBUG_RETURN(0);
+
+  SPIDER_INT_HLD *tmp_pos = union_table_name_pos_first;
+  uint cur_num, pos_backup = str->length();
+  while(TRUE)
+  {
+    for (cur_num = 0; cur_num < tmp_pos->tgt_num; ++cur_num)
+    {
+      str->length(tmp_pos->tgt[cur_num]);
+      append_table_name_with_adjusting(str, link_idx, sql_type);
+    }
+    if (tmp_pos == union_table_name_pos_current)
+      break;
+    tmp_pos = tmp_pos->next;
+  }
+  str->length(pos_backup);
+  DBUG_RETURN(0);
+}
+
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+int spider_mbase_handler::append_from_and_tables_part(
+  spider_fields *fields,
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  SPIDER_TABLE_HOLDER *table_holder;
+  TABLE_LIST *table_list;
+  DBUG_ENTER("spider_mbase_handler::append_from_and_tables_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  fields->set_pos_to_first_table_holder();
+  table_holder = fields->get_next_table_holder();
+  table_list = table_holder->table->pos_in_table_list;
+  error_num = spider_db_mbase_utility->append_from_and_tables(
+    table_holder->spider, fields, str,
+    table_list, fields->get_table_count());
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::reappend_tables_part(
+  spider_fields *fields,
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::reappend_tables_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = spider_db_mbase_utility->reappend_tables(fields,
+    link_idx_chain, str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_where_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_where_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = spider_db_mbase_utility->append_where(str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_having_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_having_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = spider_db_mbase_utility->append_having(str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_item_type_part(
+  Item *item,
+  const char *alias,
+  uint alias_length,
+  bool use_fields,
+  spider_fields *fields,
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_item_type_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = spider_db_print_item_type(item, NULL, spider, str,
+    alias, alias_length, dbton_id, use_fields, fields);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_list_item_select_part(
+  List<Item> *select,
+  const char *alias,
+  uint alias_length,
+  bool use_fields,
+  spider_fields *fields,
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_list_item_select_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_list_item_select(select, str, alias, alias_length,
+    use_fields, fields);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_list_item_select(
+  List<Item> *select,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  bool use_fields,
+  spider_fields *fields
+) {
+  int error_num;
+  uint32 length, begin;
+  List_iterator_fast<Item> it(*select);
+  Item *item;
+  Field *field;
+  const char *item_name;
+  DBUG_ENTER("spider_mbase_handler::append_list_item_select");
+  DBUG_PRINT("info",("spider this=%p", this));
+  begin = str->length();
+  while ((item = it++))
+  {
+    if (item->const_item())
+    {
+      DBUG_PRINT("info",("spider const item"));
+      continue;
+    }
+    if ((error_num = spider_db_print_item_type(item, NULL, spider, str,
+      alias, alias_length, dbton_id, use_fields, fields)))
+    {
+      DBUG_RETURN(error_num);
+    }
+    field = *(fields->get_next_field_ptr());
+    if (field)
+    {
+      item_name = SPIDER_field_name_str(field);
+      length = SPIDER_field_name_length(field);
+    } else {
+      item_name = SPIDER_item_name_str(item);
+      length = SPIDER_item_name_length(item);
+    }
+    if (str->reserve(
+      SPIDER_SQL_COMMA_LEN + /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+      SPIDER_SQL_SPACE_LEN + length
+    ))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+    if ((error_num = spider_db_mbase_utility->append_escaped_name(str,
+      item_name, length)))
+    {
+      DBUG_RETURN(error_num);
+    }
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+  if (begin == str->length())
+  {
+    /* no columns */
+    if (str->reserve(SPIDER_SQL_ONE_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_SQL_ONE_STR, SPIDER_SQL_ONE_LEN);
+  } else {
+    str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_group_by_part(
+  ORDER *order,
+  const char *alias,
+  uint alias_length,
+  bool use_fields,
+  spider_fields *fields,
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_group_by_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_group_by(order, str, alias, alias_length,
+    use_fields, fields);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_group_by(
+  ORDER *order,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  bool use_fields,
+  spider_fields *fields
+) {
+  int error_num;
+  DBUG_ENTER("spider_mbase_handler::append_group_by");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (order)
+  {
+    if (str->reserve(SPIDER_SQL_GROUP_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_GROUP_STR, SPIDER_SQL_GROUP_LEN);
+    for (; order; order = order->next)
+    {
+      if ((error_num = spider_db_print_item_type((*order->item), NULL, spider,
+        str, alias, alias_length, dbton_id, use_fields, fields)))
+      {
+        DBUG_RETURN(error_num);
+      }
+      if (str->reserve(SPIDER_SQL_COMMA_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+    }
+    str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_handler::append_order_by_part(
+  ORDER *order,
+  const char *alias,
+  uint alias_length,
+  bool use_fields,
+  spider_fields *fields,
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_mbase_handler::append_order_by_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_order_by(order, str, alias, alias_length,
+    use_fields, fields);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_handler::append_order_by(
+  ORDER *order,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  bool use_fields,
+  spider_fields *fields
+) {
+  int error_num;
+  DBUG_ENTER("spider_mbase_handler::append_order_by");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (order)
+  {
+    if (str->reserve(SPIDER_SQL_ORDER_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_ORDER_STR, SPIDER_SQL_ORDER_LEN);
+    for (; order; order = order->next)
+    {
+      if ((error_num = spider_db_print_item_type((*order->item), NULL, spider,
+        str, alias, alias_length, dbton_id, use_fields, fields)))
+      {
+        DBUG_RETURN(error_num);
+      }
+      if (SPIDER_order_direction_is_asc(order))
+      {
+        if (str->reserve(SPIDER_SQL_COMMA_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+      } else {
+        if (str->reserve(SPIDER_SQL_COMMA_LEN + SPIDER_SQL_DESC_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_DESC_STR, SPIDER_SQL_DESC_LEN);
+        str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+      }
+    }
+    str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  }
+  DBUG_RETURN(0);
+}
+#endif
+
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+bool spider_mbase_handler::check_direct_update(
+  st_select_lex *select_lex,
+  longlong select_limit,
+  longlong offset_limit
+) {
+  DBUG_ENTER("spider_mbase_handler::check_direct_update");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(FALSE);
+}
+
+bool spider_mbase_handler::check_direct_delete(
+  st_select_lex *select_lex,
+  longlong select_limit,
+  longlong offset_limit
+) {
+  DBUG_ENTER("spider_mbase_handler::check_direct_delete");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(FALSE);
+}
+#endif
+
+spider_mbase_copy_table::spider_mbase_copy_table(
+  spider_mbase_share *db_share
+) : spider_db_copy_table(
+  db_share
+),
+  mysql_share(db_share)
+{
+  DBUG_ENTER("spider_mbase_copy_table::spider_mbase_copy_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_mysql_copy_table::spider_mysql_copy_table(
+  spider_mbase_share *db_share
+) : spider_mbase_copy_table(
+  db_share
+) {
+  DBUG_ENTER("spider_mysql_copy_table::spider_mysql_copy_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_mariadb_copy_table::spider_mariadb_copy_table(
+  spider_mbase_share *db_share
+) : spider_mbase_copy_table(
+  db_share
+) {
+  DBUG_ENTER("spider_mariadb_copy_table::spider_mariadb_copy_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_mbase_copy_table::~spider_mbase_copy_table()
+{
+  DBUG_ENTER("spider_mbase_copy_table::~spider_mbase_copy_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_mysql_copy_table::~spider_mysql_copy_table()
+{
+  DBUG_ENTER("spider_mysql_copy_table::~spider_mysql_copy_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_mariadb_copy_table::~spider_mariadb_copy_table()
+{
+  DBUG_ENTER("spider_mariadb_copy_table::~spider_mariadb_copy_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+int spider_mbase_copy_table::init()
+{
+  DBUG_ENTER("spider_mbase_copy_table::init");
+  DBUG_PRINT("info",("spider this=%p", this));
+  sql.init_calc_mem(78);
+  DBUG_RETURN(0);
+}
+
+void spider_mbase_copy_table::set_sql_charset(
+  CHARSET_INFO *cs
+) {
+  DBUG_ENTER("spider_mbase_copy_table::set_sql_charset");
+  DBUG_PRINT("info",("spider this=%p", this));
+  sql.set_charset(cs);
+  DBUG_VOID_RETURN;
+}
+
+int spider_mbase_copy_table::append_select_str()
+{
+  DBUG_ENTER("spider_mbase_copy_table::append_select_str");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql.reserve(SPIDER_SQL_SELECT_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  sql.q_append(SPIDER_SQL_SELECT_STR, SPIDER_SQL_SELECT_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_copy_table::append_insert_str(
+  int insert_flg
+) {
+  DBUG_ENTER("spider_mbase_copy_table::append_insert_str");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (insert_flg & SPIDER_DB_INSERT_REPLACE)
+  {
+    if (sql.reserve(SPIDER_SQL_REPLACE_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    sql.q_append(SPIDER_SQL_REPLACE_STR, SPIDER_SQL_REPLACE_LEN);
+  } else {
+    if (sql.reserve(SPIDER_SQL_INSERT_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    sql.q_append(SPIDER_SQL_INSERT_STR, SPIDER_SQL_INSERT_LEN);
+  }
+  if (insert_flg & SPIDER_DB_INSERT_LOW_PRIORITY)
+  {
+    if (sql.reserve(SPIDER_SQL_LOW_PRIORITY_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    sql.q_append(SPIDER_SQL_LOW_PRIORITY_STR, SPIDER_SQL_LOW_PRIORITY_LEN);
+  }
+  else if (insert_flg & SPIDER_DB_INSERT_DELAYED)
+  {
+    if (sql.reserve(SPIDER_SQL_SQL_DELAYED_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    sql.q_append(SPIDER_SQL_SQL_DELAYED_STR, SPIDER_SQL_SQL_DELAYED_LEN);
+  }
+  else if (insert_flg & SPIDER_DB_INSERT_HIGH_PRIORITY)
+  {
+    if (sql.reserve(SPIDER_SQL_HIGH_PRIORITY_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    sql.q_append(SPIDER_SQL_HIGH_PRIORITY_STR, SPIDER_SQL_HIGH_PRIORITY_LEN);
+  }
+  if (insert_flg & SPIDER_DB_INSERT_IGNORE)
+  {
+    if (sql.reserve(SPIDER_SQL_SQL_IGNORE_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    sql.q_append(SPIDER_SQL_SQL_IGNORE_STR, SPIDER_SQL_SQL_IGNORE_LEN);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_copy_table::append_table_columns(
+  TABLE_SHARE *table_share
+) {
+  int error_num;
+  Field **field;
+  DBUG_ENTER("spider_mbase_copy_table::append_table_columns");
+  DBUG_PRINT("info",("spider this=%p", this));
+  for (field = table_share->field; *field; field++)
+  {
+    if (sql.reserve(SPIDER_SQL_NAME_QUOTE_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    sql.q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+    if ((error_num = spider_db_append_name_with_quote_str(&sql,
+      (*field)->field_name, dbton_id)))
+      DBUG_RETURN(error_num);
+    if (sql.reserve(SPIDER_SQL_NAME_QUOTE_LEN + SPIDER_SQL_COMMA_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    sql.q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+    sql.q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+  sql.length(sql.length() - SPIDER_SQL_COMMA_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_copy_table::append_from_str()
+{
+  DBUG_ENTER("spider_mbase_copy_table::append_from_str");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql.reserve(SPIDER_SQL_FROM_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  sql.q_append(SPIDER_SQL_FROM_STR, SPIDER_SQL_FROM_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_copy_table::append_table_name(
+  int link_idx
+) {
+  int error_num;
+  DBUG_ENTER("spider_mbase_copy_table::append_table_name");
+  DBUG_PRINT("info",("spider this=%p", this));
+  error_num = mysql_share->append_table_name(&sql, link_idx);
+  DBUG_RETURN(error_num);
+}
+
+void spider_mbase_copy_table::set_sql_pos()
+{
+  DBUG_ENTER("spider_mbase_copy_table::set_sql_pos");
+  DBUG_PRINT("info",("spider this=%p", this));
+  pos = sql.length();
+  DBUG_VOID_RETURN;
+}
+
+void spider_mbase_copy_table::set_sql_to_pos()
+{
+  DBUG_ENTER("spider_mbase_copy_table::set_sql_to_pos");
+  DBUG_PRINT("info",("spider this=%p", this));
+  sql.length(pos);
+  DBUG_VOID_RETURN;
+}
+
+int spider_mbase_copy_table::append_copy_where(
+  spider_db_copy_table *source_ct,
+  KEY *key_info,
+  ulong *last_row_pos,
+  ulong *last_lengths
+) {
+  int error_num, roop_count, roop_count2;
+  DBUG_ENTER("spider_mbase_copy_table::append_copy_where");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql.reserve(SPIDER_SQL_WHERE_LEN + SPIDER_SQL_OPEN_PAREN_LEN))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  sql.q_append(SPIDER_SQL_WHERE_STR, SPIDER_SQL_WHERE_LEN);
+  sql.q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  Field *field;
+  KEY_PART_INFO *key_part = key_info->key_part;
+  for (roop_count = spider_user_defined_key_parts(key_info) - 1;
+    roop_count >= 0; roop_count--)
+  {
+    for (roop_count2 = 0; roop_count2 < roop_count; roop_count2++)
+    {
+      field = key_part[roop_count2].field;
+      if ((error_num = copy_key_row(source_ct,
+        field, &last_row_pos[field->field_index],
+        &last_lengths[field->field_index],
+        SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN)))
+      {
+        DBUG_RETURN(error_num);
+      }
+    }
+    field = key_part[roop_count2].field;
+    if ((error_num = copy_key_row(source_ct,
+      field, &last_row_pos[field->field_index],
+      &last_lengths[field->field_index],
+      SPIDER_SQL_GT_STR, SPIDER_SQL_GT_LEN)))
+    {
+      DBUG_RETURN(error_num);
+    }
+    sql.length(sql.length() - SPIDER_SQL_AND_LEN);
+    if (sql.reserve(SPIDER_SQL_CLOSE_PAREN_LEN +
+      SPIDER_SQL_OR_LEN + SPIDER_SQL_OPEN_PAREN_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    sql.q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+    sql.q_append(SPIDER_SQL_OR_STR, SPIDER_SQL_OR_LEN);
+    sql.q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  }
+  sql.length(sql.length() - SPIDER_SQL_OR_LEN - SPIDER_SQL_OPEN_PAREN_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_copy_table::append_key_order_str(
+  KEY *key_info,
+  int start_pos,
+  bool desc_flg
+) {
+  int length, error_num;
+  KEY_PART_INFO *key_part;
+  Field *field;
+  DBUG_ENTER("spider_mbase_copy_table::append_key_order_str");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if ((int) spider_user_defined_key_parts(key_info) > start_pos)
+  {
+    if (sql.reserve(SPIDER_SQL_ORDER_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    sql.q_append(SPIDER_SQL_ORDER_STR, SPIDER_SQL_ORDER_LEN);
+    if (desc_flg == TRUE)
+    {
+      for (
+        key_part = key_info->key_part + start_pos,
+        length = 0;
+        length + start_pos < (int) spider_user_defined_key_parts(key_info);
+        key_part++,
+        length++
+      ) {
+        field = key_part->field;
+        if (sql.reserve(SPIDER_SQL_NAME_QUOTE_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        sql.q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+        if ((error_num = spider_db_append_name_with_quote_str(&sql,
+          field->field_name, dbton_id)))
+          DBUG_RETURN(error_num);
+        if (key_part->key_part_flag & HA_REVERSE_SORT)
+        {
+          if (sql.reserve(SPIDER_SQL_NAME_QUOTE_LEN + SPIDER_SQL_COMMA_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          sql.q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+          sql.q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+        } else {
+          if (sql.reserve(SPIDER_SQL_NAME_QUOTE_LEN + SPIDER_SQL_DESC_LEN +
+            SPIDER_SQL_COMMA_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          sql.q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+          sql.q_append(SPIDER_SQL_DESC_STR, SPIDER_SQL_DESC_LEN);
+          sql.q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+        }
+      }
+    } else {
+      for (
+        key_part = key_info->key_part + start_pos,
+        length = 0;
+        length + start_pos < (int) spider_user_defined_key_parts(key_info);
+        key_part++,
+        length++
+      ) {
+        field = key_part->field;
+        if (sql.reserve(SPIDER_SQL_NAME_QUOTE_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        sql.q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+        if ((error_num = spider_db_append_name_with_quote_str(&sql,
+          field->field_name, dbton_id)))
+          DBUG_RETURN(error_num);
+        if (key_part->key_part_flag & HA_REVERSE_SORT)
+        {
+          if (sql.reserve(SPIDER_SQL_NAME_QUOTE_LEN + SPIDER_SQL_DESC_LEN +
+            SPIDER_SQL_COMMA_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          sql.q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+          sql.q_append(SPIDER_SQL_DESC_STR, SPIDER_SQL_DESC_LEN);
+          sql.q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+        } else {
+          if (sql.reserve(SPIDER_SQL_NAME_QUOTE_LEN + SPIDER_SQL_COMMA_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          sql.q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+          sql.q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+        }
+      }
+    }
+    sql.length(sql.length() - SPIDER_SQL_COMMA_LEN);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_copy_table::append_limit(
+  longlong offset,
+  longlong limit
+) {
+  char buf[SPIDER_LONGLONG_LEN + 1];
+  uint32 length;
+  DBUG_ENTER("spider_mbase_copy_table::append_limit");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (offset || limit < 9223372036854775807LL)
+  {
+    if (sql.reserve(SPIDER_SQL_LIMIT_LEN + SPIDER_SQL_COMMA_LEN +
+      ((SPIDER_LONGLONG_LEN) * 2)))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    sql.q_append(SPIDER_SQL_LIMIT_STR, SPIDER_SQL_LIMIT_LEN);
+    if (offset)
+    {
+      length = (uint32) (my_charset_bin.longlong10_to_str)(
+        buf, SPIDER_LONGLONG_LEN + 1, -10, offset);
+      sql.q_append(buf, length);
+      sql.q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+    }
+    length = (uint32) (my_charset_bin.longlong10_to_str)(
+      buf, SPIDER_LONGLONG_LEN + 1, -10, limit);
+    sql.q_append(buf, length);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_copy_table::append_into_str()
+{
+  DBUG_ENTER("spider_mbase_copy_table::append_into_str");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql.reserve(SPIDER_SQL_INTO_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  sql.q_append(SPIDER_SQL_INTO_STR, SPIDER_SQL_INTO_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_copy_table::append_open_paren_str()
+{
+  DBUG_ENTER("spider_mbase_copy_table::append_open_paren_str");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql.reserve(SPIDER_SQL_OPEN_PAREN_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  sql.q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_copy_table::append_values_str()
+{
+  DBUG_ENTER("spider_mbase_copy_table::append_values_str");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql.reserve(SPIDER_SQL_CLOSE_PAREN_LEN + SPIDER_SQL_VALUES_LEN +
+    SPIDER_SQL_OPEN_PAREN_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  sql.q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+  sql.q_append(SPIDER_SQL_VALUES_STR, SPIDER_SQL_VALUES_LEN);
+  sql.q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_copy_table::append_select_lock_str(
+  int lock_mode
+) {
+  DBUG_ENTER("spider_mbase_copy_table::append_select_lock_str");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (lock_mode == SPIDER_LOCK_MODE_EXCLUSIVE)
+  {
+    if (sql.reserve(SPIDER_SQL_FOR_UPDATE_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    sql.q_append(SPIDER_SQL_FOR_UPDATE_STR, SPIDER_SQL_FOR_UPDATE_LEN);
+  } else if (lock_mode == SPIDER_LOCK_MODE_SHARED)
+  {
+    if (sql.reserve(SPIDER_SQL_SHARED_LOCK_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    sql.q_append(SPIDER_SQL_SHARED_LOCK_STR, SPIDER_SQL_SHARED_LOCK_LEN);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_copy_table::exec_query(
+  SPIDER_CONN *conn,
+  int quick_mode,
+  int *need_mon
+) {
+  int error_num;
+  DBUG_ENTER("spider_mbase_copy_table::exec_query");
+  DBUG_PRINT("info",("spider this=%p", this));
+  error_num = spider_db_query(conn, sql.ptr(), sql.length(), quick_mode,
+    need_mon);
+  DBUG_RETURN(error_num);
+}
+
+int spider_mbase_copy_table::copy_key_row(
+  spider_db_copy_table *source_ct,
+  Field *field,
+  ulong *row_pos,
+  ulong *length,
+  const char *joint_str,
+  const int joint_length
+) {
+  int error_num;
+  spider_string *source_str = &((spider_mbase_copy_table *) source_ct)->sql;
+  DBUG_ENTER("spider_mbase_copy_table::copy_key_row");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql.reserve(SPIDER_SQL_NAME_QUOTE_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  sql.q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  if ((error_num = spider_db_append_name_with_quote_str(&sql,
+    field->field_name, dbton_id)))
+    DBUG_RETURN(error_num);
+  if (sql.reserve(SPIDER_SQL_NAME_QUOTE_LEN + joint_length + *length +
+    SPIDER_SQL_AND_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  sql.q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  sql.q_append(joint_str, joint_length);
+  sql.q_append(source_str->ptr() + *row_pos, *length);
+  sql.q_append(SPIDER_SQL_AND_STR, SPIDER_SQL_AND_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_copy_table::copy_row(
+  Field *field,
+  SPIDER_DB_ROW *row
+) {
+  int error_num;
+  DBUG_ENTER("spider_mbase_copy_table::copy_row");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (row->is_null())
+  {
+    if (sql.reserve(SPIDER_SQL_NULL_LEN + SPIDER_SQL_COMMA_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    sql.q_append(SPIDER_SQL_NULL_STR, SPIDER_SQL_NULL_LEN);
+  } else if (field->str_needs_quotes())
+  {
+    if (sql.reserve(SPIDER_SQL_VALUE_QUOTE_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    sql.q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    if ((error_num = row->append_escaped_to_str(&sql,
+      dbton_id)))
+      DBUG_RETURN(error_num);
+    if (sql.reserve(SPIDER_SQL_VALUE_QUOTE_LEN + SPIDER_SQL_COMMA_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    sql.q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+  } else {
+    if ((error_num = row->append_to_str(&sql)))
+      DBUG_RETURN(error_num);
+    if (sql.reserve(SPIDER_SQL_COMMA_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  sql.q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_copy_table::copy_rows(
+  TABLE *table,
+  SPIDER_DB_ROW *row,
+  ulong **last_row_pos,
+  ulong **last_lengths
+) {
+  int error_num;
+  Field **field;
+  ulong *lengths2, *row_pos2;
+  DBUG_ENTER("spider_mbase_copy_table::copy_rows");
+  DBUG_PRINT("info",("spider this=%p", this));
+  row_pos2 = *last_row_pos;
+  lengths2 = *last_lengths;
+
+  for (
+    field = table->field;
+    *field;
+    field++,
+    lengths2++
+  ) {
+    *row_pos2 = sql.length();
+    if ((error_num =
+      copy_row(*field, row)))
+      DBUG_RETURN(error_num);
+    *lengths2 = sql.length() - *row_pos2 - SPIDER_SQL_COMMA_LEN;
+    row->next();
+    row_pos2++;
+  }
+  sql.length(sql.length() - SPIDER_SQL_COMMA_LEN);
+  if (sql.reserve(SPIDER_SQL_CLOSE_PAREN_LEN +
+    SPIDER_SQL_COMMA_LEN + SPIDER_SQL_OPEN_PAREN_LEN))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  sql.q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+  sql.q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  sql.q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_copy_table::copy_rows(
+  TABLE *table,
+  SPIDER_DB_ROW *row
+) {
+  int error_num;
+  Field **field;
+  DBUG_ENTER("spider_mbase_copy_table::copy_rows");
+  DBUG_PRINT("info",("spider this=%p", this));
+  for (
+    field = table->field;
+    *field;
+    field++
+  ) {
+    if ((error_num =
+      copy_row(*field, row)))
+      DBUG_RETURN(error_num);
+    row->next();
+  }
+  sql.length(sql.length() - SPIDER_SQL_COMMA_LEN);
+  if (sql.reserve(SPIDER_SQL_CLOSE_PAREN_LEN +
+    SPIDER_SQL_COMMA_LEN + SPIDER_SQL_OPEN_PAREN_LEN))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  sql.q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+  sql.q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  sql.q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_copy_table::append_insert_terminator()
+{
+  DBUG_ENTER("spider_mbase_copy_table::append_insert_terminator");
+  DBUG_PRINT("info",("spider this=%p", this));
+  sql.length(sql.length() - SPIDER_SQL_COMMA_LEN - SPIDER_SQL_OPEN_PAREN_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_mbase_copy_table::copy_insert_values(
+  spider_db_copy_table *source_ct
+) {
+  spider_mbase_copy_table *tmp_ct = (spider_mbase_copy_table *) source_ct;
+  spider_string *source_str = &tmp_ct->sql;
+  int values_length = source_str->length() - tmp_ct->pos;
+  const char *values_ptr = source_str->ptr() + tmp_ct->pos;
+  DBUG_ENTER("spider_mbase_copy_table::copy_insert_values");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql.reserve(values_length))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  sql.q_append(values_ptr, values_length);
+  DBUG_RETURN(0);
+}
diff --git a/storage/spider/spd_db_mysql.h b/storage/spider/spd_db_mysql.h
new file mode 100644
index 00000000..45565154
--- /dev/null
+++ b/storage/spider/spd_db_mysql.h
@@ -0,0 +1,1808 @@
+/* Copyright (C) 2012-2018 Kentoku Shiba
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+class spider_db_mbase_util: public spider_db_util
+{
+public:
+  spider_db_mbase_util();
+  virtual ~spider_db_mbase_util();
+  int append_name(
+    spider_string *str,
+    const char *name,
+    uint name_length
+  );
+  int append_name_with_charset(
+    spider_string *str,
+    const char *name,
+    uint name_length,
+    CHARSET_INFO *name_charset
+  );
+  int append_escaped_name(
+    spider_string *str,
+    const char *name,
+    uint name_length
+  );
+  int append_escaped_name_with_charset(
+    spider_string *str,
+    const char *name,
+    uint name_length,
+    CHARSET_INFO *name_charset
+  );
+  bool is_name_quote(
+    const char head_code
+  );
+  int append_escaped_name_quote(
+    spider_string *str
+  );
+  int append_column_value(
+    ha_spider *spider,
+    spider_string *str,
+    Field *field,
+    const uchar *new_ptr,
+    CHARSET_INFO *access_charset
+  );
+  int append_from_with_alias(
+    spider_string *str,
+    const char **table_names,
+    uint *table_name_lengths,
+    const char **table_aliases,
+    uint *table_alias_lengths,
+    uint table_count,
+    int *table_name_pos,
+    bool over_write
+  );
+  int append_trx_isolation(
+    spider_string *str,
+    int trx_isolation
+  );
+  int append_autocommit(
+    spider_string *str,
+    bool autocommit
+  );
+  int append_sql_log_off(
+    spider_string *str,
+    bool sql_log_off
+  );
+  int append_wait_timeout(
+    spider_string *str,
+    int wait_timeout
+  );
+  virtual int append_sql_mode_internal(
+    spider_string *str,
+    sql_mode_t sql_mode
+  );
+  int append_sql_mode(
+    spider_string *str,
+    sql_mode_t sql_mode
+  );
+  int append_time_zone(
+    spider_string *str,
+    Time_zone *time_zone
+  );
+  int append_loop_check(
+    spider_string *str,
+    SPIDER_CONN *conn
+  );
+  int append_start_transaction(
+    spider_string *str
+  );
+  int append_xa_start(
+    spider_string *str,
+    XID *xid
+  );
+  int append_lock_table_head(
+    spider_string *str
+  );
+  int append_lock_table_body(
+    spider_string *str,
+    const char *db_name,
+    uint db_name_length,
+    CHARSET_INFO *db_name_charset,
+    const char *table_name,
+    uint table_name_length,
+    CHARSET_INFO *table_name_charset,
+    int lock_type
+  );
+  int append_lock_table_tail(
+    spider_string *str
+  );
+  int append_unlock_table(
+    spider_string *str
+  );
+  int open_item_func(
+    Item_func *item_func,
+    ha_spider *spider,
+    spider_string *str,
+    const char *alias,
+    uint alias_length,
+    bool use_fields,
+    spider_fields *fields
+  );
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  int open_item_sum_func(
+    Item_sum *item_sum,
+    ha_spider *spider,
+    spider_string *str,
+    const char *alias,
+    uint alias_length,
+    bool use_fields,
+    spider_fields *fields
+  );
+#endif
+  int append_escaped_util(
+    spider_string *to,
+    String *from
+  );
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+  int append_table(
+    ha_spider *spider,
+    spider_fields *fields,
+    spider_string *str,
+    TABLE_LIST *table_list,
+    TABLE_LIST **used_table_list,
+    uint *current_pos,
+    TABLE_LIST **cond_table_list_ptr,
+    bool top_down,
+    bool first
+  );
+  int append_tables_top_down(
+    ha_spider *spider,
+    spider_fields *fields,
+    spider_string *str,
+    TABLE_LIST *table_list,
+    TABLE_LIST **used_table_list,
+    uint *current_pos,
+    TABLE_LIST **cond_table_list_ptr
+  );
+  int append_tables_top_down_check(
+    TABLE_LIST *table_list,
+    TABLE_LIST **used_table_list,
+    uint *current_pos
+  );
+  int append_embedding_tables(
+    ha_spider *spider,
+    spider_fields *fields,
+    spider_string *str,
+    TABLE_LIST *table_list,
+    TABLE_LIST **used_table_list,
+    uint *current_pos,
+    TABLE_LIST **cond_table_list_ptr
+  );
+  int append_from_and_tables(
+    ha_spider *spider,
+    spider_fields *fields,
+    spider_string *str,
+    TABLE_LIST *table_list,
+    uint table_count
+  );
+  int reappend_tables(
+    spider_fields *fields,
+    SPIDER_LINK_IDX_CHAIN *link_idx_chain,
+    spider_string *str
+  );
+  int append_where(
+    spider_string *str
+  );
+  int append_having(
+    spider_string *str
+  );
+#endif
+  bool append_charset_name_before_string();
+};
+
+class spider_db_mysql_util: public spider_db_mbase_util
+{
+public:
+  spider_db_mysql_util();
+  ~spider_db_mysql_util();
+  int append_column_value(
+    ha_spider *spider,
+    spider_string *str,
+    Field *field,
+    const uchar *new_ptr,
+    CHARSET_INFO *access_charset
+  );
+};
+
+class spider_db_mariadb_util: public spider_db_mbase_util
+{
+public:
+  spider_db_mariadb_util();
+  ~spider_db_mariadb_util();
+  int append_sql_mode_internal(
+    spider_string *str,
+    sql_mode_t sql_mode
+  );
+  int append_column_value(
+    ha_spider *spider,
+    spider_string *str,
+    Field *field,
+    const uchar *new_ptr,
+    CHARSET_INFO *access_charset
+  );
+};
+
+class spider_db_mbase_row: public spider_db_row
+{
+public:
+  MYSQL_ROW           row;
+  MYSQL_ROW           row_first;
+  ulong               *lengths;
+  ulong               *lengths_first;
+  uint                field_count;
+  uint                record_size;
+  bool                cloned;
+  spider_db_mbase_row(
+    uint dbton_id
+  );
+  virtual ~spider_db_mbase_row();
+  int store_to_field(
+    Field *field,
+    CHARSET_INFO *access_charset
+  );
+  int append_to_str(
+    spider_string *str
+  );
+  int append_escaped_to_str(
+    spider_string *str,
+    uint dbton_id
+  );
+  void first();
+  void next();
+  bool is_null();
+  int val_int();
+  double val_real();
+  my_decimal *val_decimal(
+    my_decimal *decimal_value,
+    CHARSET_INFO *access_charset
+  );
+  SPIDER_DB_ROW *clone();
+  int store_to_tmp_table(
+    TABLE *tmp_table,
+    spider_string *str
+  );
+  uint get_byte_size();
+};
+
+class spider_db_mysql_row: public spider_db_mbase_row
+{
+public:
+  spider_db_mysql_row();
+  ~spider_db_mysql_row();
+};
+
+class spider_db_mariadb_row: public spider_db_mbase_row
+{
+public:
+  spider_db_mariadb_row();
+  ~spider_db_mariadb_row();
+};
+
+class spider_db_mbase_result: public spider_db_result
+{
+public:
+  MYSQL_RES           *db_result;
+  spider_db_mbase_row row;
+  MYSQL_ROW_OFFSET    first_row;
+  int                 store_error_num;
+  spider_db_mbase_result(
+    SPIDER_DB_CONN *in_db_conn
+  );
+  virtual ~spider_db_mbase_result();
+  bool has_result();
+  void free_result();
+  SPIDER_DB_ROW *current_row();
+  SPIDER_DB_ROW *fetch_row();
+  SPIDER_DB_ROW *fetch_row_from_result_buffer(
+    spider_db_result_buffer *spider_res_buf
+  );
+  SPIDER_DB_ROW *fetch_row_from_tmp_table(
+    TABLE *tmp_table
+  );
+  int fetch_table_status(
+    int mode,
+    ha_statistics &stat
+  );
+  int fetch_simple_action(
+    uint simple_action,
+    uint position,
+    void *param
+  );
+  int fetch_table_records(
+    int mode,
+    ha_rows &records
+  );
+#ifdef HA_HAS_CHECKSUM_EXTENDED
+  int fetch_table_checksum(
+    ha_spider *spider
+  );
+#endif
+  int fetch_table_cardinality(
+    int mode,
+    TABLE *table,
+    longlong *cardinality,
+    uchar *cardinality_upd,
+    int bitmap_size
+  );
+  int fetch_table_mon_status(
+    int &status
+  );
+  int fetch_show_master_status(
+    const char **binlog_file_name,
+    const char **binlog_pos
+  );
+  int fetch_select_binlog_gtid_pos(
+    const char **gtid_pos
+  );
+  longlong num_rows();
+  uint num_fields();
+  void move_to_pos(
+    longlong pos
+  );
+  int get_errno();
+#ifdef SPIDER_HAS_DISCOVER_TABLE_STRUCTURE
+  int fetch_columns_for_discover_table_structure(
+    spider_string *str,
+    CHARSET_INFO *access_charset
+  );
+  int fetch_index_for_discover_table_structure(
+    spider_string *str,
+    CHARSET_INFO *access_charset
+  );
+  int fetch_table_for_discover_table_structure(
+    spider_string *str,
+    SPIDER_SHARE *spider_share,
+    CHARSET_INFO *access_charset
+  );
+#endif
+};
+
+class spider_db_mysql_result: public spider_db_mbase_result
+{
+public:
+  spider_db_mysql_result(
+    SPIDER_DB_CONN *in_db_conn
+  );
+  ~spider_db_mysql_result();
+};
+
+class spider_db_mariadb_result: public spider_db_mbase_result
+{
+public:
+  spider_db_mariadb_result(
+    SPIDER_DB_CONN *in_db_conn
+  );
+  ~spider_db_mariadb_result();
+};
+
+class spider_db_mbase: public spider_db_conn
+{
+protected:
+  int                  stored_error;
+  spider_db_mbase_util *spider_db_mbase_utility;
+public:
+  MYSQL          *db_conn;
+  HASH           lock_table_hash;
+  bool           lock_table_hash_inited;
+  uint           lock_table_hash_id;
+  const char     *lock_table_hash_func_name;
+  const char     *lock_table_hash_file_name;
+  ulong          lock_table_hash_line_no;
+  DYNAMIC_ARRAY  handler_open_array;
+  bool           handler_open_array_inited;
+  uint           handler_open_array_id;
+  const char     *handler_open_array_func_name;
+  const char     *handler_open_array_file_name;
+  ulong          handler_open_array_line_no;
+  spider_db_mbase(
+    SPIDER_CONN *conn,
+    spider_db_mbase_util *spider_db_mbase_utility
+  );
+  virtual ~spider_db_mbase();
+  int init();
+  bool is_connected();
+  void bg_connect();
+  int connect(
+    char *tgt_host,
+    char *tgt_username,
+    char *tgt_password,
+    long tgt_port,
+    char *tgt_socket,
+    char *server_name,
+    int connect_retry_count,
+    longlong connect_retry_interval
+  );
+  int ping();
+  void bg_disconnect();
+  void disconnect();
+  int set_net_timeout();
+  int exec_query(
+    const char *query,
+    uint length,
+    int quick_mode
+  );
+  int get_errno();
+  const char *get_error();
+  bool is_server_gone_error(
+    int error_num
+  );
+  bool is_dup_entry_error(
+    int error_num
+  );
+  bool is_xa_nota_error(
+    int error_num
+  );
+  int print_warnings(
+    struct tm *l_time
+  );
+  spider_db_result *store_result(
+    spider_db_result_buffer **spider_res_buf,
+    st_spider_db_request_key *request_key,
+    int *error_num
+  );
+  spider_db_result *use_result(
+    ha_spider *spider,
+    st_spider_db_request_key *request_key,
+    int *error_num
+  );
+  int next_result();
+  uint affected_rows();
+  uint matched_rows();
+  bool inserted_info(
+    spider_db_handler *handler,
+    ha_copy_info *copy_info
+  );
+  ulonglong last_insert_id();
+  int set_character_set(
+    const char *csname
+  );
+  int select_db(
+    const char *dbname
+  );
+  int consistent_snapshot(
+    int *need_mon
+  );
+  bool trx_start_in_bulk_sql();
+  int start_transaction(
+    int *need_mon
+  );
+  int commit(
+    int *need_mon
+  );
+  int rollback(
+    int *need_mon
+  );
+  bool xa_start_in_bulk_sql();
+  int xa_start(
+    XID *xid,
+    int *need_mon
+  );
+  int xa_end(
+    XID *xid,
+    int *need_mon
+  );
+  int xa_prepare(
+    XID *xid,
+    int *need_mon
+  );
+  int xa_commit(
+    XID *xid,
+    int *need_mon
+  );
+  int xa_rollback(
+    XID *xid,
+    int *need_mon
+  );
+  bool set_trx_isolation_in_bulk_sql();
+  int set_trx_isolation(
+    int trx_isolation,
+    int *need_mon
+  );
+  bool set_autocommit_in_bulk_sql();
+  int set_autocommit(
+    bool autocommit,
+    int *need_mon
+  );
+  bool set_sql_log_off_in_bulk_sql();
+  int set_sql_log_off(
+    bool sql_log_off,
+    int *need_mon
+  );
+  bool set_wait_timeout_in_bulk_sql();
+  int set_wait_timeout(
+    int wait_timeout,
+    int *need_mon
+  );
+  bool set_sql_mode_in_bulk_sql();
+  int set_sql_mode(
+    sql_mode_t sql_mode,
+    int *need_mon
+  );
+  bool set_time_zone_in_bulk_sql();
+  int set_time_zone(
+    Time_zone *time_zone,
+    int *need_mon
+  );
+  bool set_loop_check_in_bulk_sql();
+  int set_loop_check(
+    int *need_mon
+  );
+  int fin_loop_check();
+  int exec_simple_sql_with_result(
+    SPIDER_TRX *trx,
+    SPIDER_SHARE *share,
+    const char *sql,
+    uint sql_length,
+    int all_link_idx,
+    int *need_mon,
+    SPIDER_DB_RESULT **res
+  );
+  int show_master_status(
+    SPIDER_TRX *trx,
+    SPIDER_SHARE *share,
+    int all_link_idx,
+    int *need_mon,
+    TABLE *table,
+    spider_string *str,
+    int mode,
+    SPIDER_DB_RESULT **res1,
+    SPIDER_DB_RESULT **res2
+  );
+  int select_binlog_gtid_pos(
+    SPIDER_TRX *trx,
+    SPIDER_SHARE *share,
+    int all_link_idx,
+    int *need_mon,
+    TABLE *table,
+    spider_string *str,
+    const char *binlog_file_name,
+    uint binlog_file_name_length,
+    const char *binlog_pos,
+    uint binlog_pos_length,
+    SPIDER_DB_RESULT **res
+  );
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  int append_sql(
+    char *sql,
+    ulong sql_length,
+    st_spider_db_request_key *request_key
+  );
+  int append_open_handler(
+    uint handler_id,
+    const char *db_name,
+    const char *table_name,
+    const char *index_name,
+    const char *sql,
+    st_spider_db_request_key *request_key
+  );
+  int append_select(
+    uint handler_id,
+    spider_string *sql,
+    SPIDER_DB_HS_STRING_REF_BUFFER *keys,
+    int limit,
+    int skip,
+    st_spider_db_request_key *request_key
+  );
+  int append_insert(
+    uint handler_id,
+    SPIDER_DB_HS_STRING_REF_BUFFER *upds,
+    st_spider_db_request_key *request_key
+  );
+  int append_update(
+    uint handler_id,
+    spider_string *sql,
+    SPIDER_DB_HS_STRING_REF_BUFFER *keys,
+    SPIDER_DB_HS_STRING_REF_BUFFER *upds,
+    int limit,
+    int skip,
+    bool increment,
+    bool decrement,
+    st_spider_db_request_key *request_key
+  );
+  int append_delete(
+    uint handler_id,
+    spider_string *sql,
+    SPIDER_DB_HS_STRING_REF_BUFFER *keys,
+    int limit,
+    int skip,
+    st_spider_db_request_key *request_key
+  );
+  void reset_request_queue();
+#endif
+  size_t escape_string(
+    char *to,
+    const char *from,
+    size_t from_length
+  );
+  bool have_lock_table_list();
+  int append_lock_tables(
+    spider_string *str
+  );
+  int append_unlock_tables(
+    spider_string *str
+  );
+  uint get_lock_table_hash_count();
+  void reset_lock_table_hash();
+  uint get_opened_handler_count();
+  void reset_opened_handler();
+  void set_dup_key_idx(
+    ha_spider *spider,
+    int link_idx
+  );
+  bool cmp_request_key_to_snd(
+    st_spider_db_request_key *request_key
+  );
+};
+
+class spider_db_mysql: public spider_db_mbase
+{
+public:
+  spider_db_mysql(
+    SPIDER_CONN *conn
+  );
+  ~spider_db_mysql();
+};
+
+class spider_db_mariadb: public spider_db_mbase
+{
+public:
+  spider_db_mariadb(
+    SPIDER_CONN *conn
+  );
+  ~spider_db_mariadb();
+};
+
+class spider_mbase_share: public spider_db_share
+{
+protected:
+  spider_db_mbase_util *spider_db_mbase_utility;
+public:
+  spider_string      *table_select;
+  int                table_select_pos;
+  spider_string      *key_select;
+  int                *key_select_pos;
+  spider_string      *key_hint;
+  spider_string      *show_table_status;
+  spider_string      *show_records;
+  spider_string      *show_index;
+  spider_string      *table_names_str;
+  spider_string      *db_names_str;
+  spider_string      *db_table_str;
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  my_hash_value_type *db_table_str_hash_value;
+#endif
+  uint               table_nm_max_length;
+  uint               db_nm_max_length;
+  spider_string      *column_name_str;
+  bool               same_db_table_name;
+  int                first_all_link_idx;
+
+  spider_mbase_share(
+    st_spider_share *share,
+    uint dbton_id,
+    spider_db_mbase_util *spider_db_mbase_utility
+  );
+  virtual ~spider_mbase_share();
+  int init();
+  uint get_column_name_length(
+    uint field_index
+  );
+  int append_column_name(
+    spider_string *str,
+    uint field_index
+  );
+  int append_column_name_with_alias(
+    spider_string *str,
+    uint field_index,
+    const char *alias,
+    uint alias_length
+  );
+  int append_table_name(
+    spider_string *str,
+    int all_link_idx
+  );
+  int append_table_name_with_adjusting(
+    spider_string *str,
+    int all_link_idx
+  );
+  int append_from_with_adjusted_table_name(
+    spider_string *str,
+    int *table_name_pos
+  );
+  bool need_change_db_table_name();
+#ifdef SPIDER_HAS_DISCOVER_TABLE_STRUCTURE
+  int discover_table_structure(
+    SPIDER_TRX *trx,
+    SPIDER_SHARE *spider_share,
+    spider_string *str
+  );
+#endif
+#ifdef HA_HAS_CHECKSUM_EXTENDED
+  bool checksum_support();
+#endif
+protected:
+  int create_table_names_str();
+  void free_table_names_str();
+  int create_column_name_str();
+  void free_column_name_str();
+  int convert_key_hint_str();
+  int append_show_table_status();
+  void free_show_table_status();
+  int append_show_records();
+  void free_show_records();
+  int append_show_index();
+  void free_show_index();
+  int append_table_select();
+  int append_key_select(
+    uint idx
+  );
+};
+
+class spider_mysql_share: public spider_mbase_share
+{
+public:
+  spider_mysql_share(
+    st_spider_share *share
+  );
+  ~spider_mysql_share();
+};
+
+class spider_mariadb_share: public spider_mbase_share
+{
+public:
+  spider_mariadb_share(
+    st_spider_share *share
+  );
+  ~spider_mariadb_share();
+};
+
+class spider_mbase_handler: public spider_db_handler
+{
+protected:
+  spider_db_mbase_util    *spider_db_mbase_utility;
+  spider_string           sql;
+  spider_string           sql_part;
+  spider_string           sql_part2;
+  spider_string           ha_sql;
+  int                     where_pos;
+  int                     order_pos;
+  int                     limit_pos;
+public:
+  int                     table_name_pos;
+protected:
+  int                     ha_read_pos;
+  int                     ha_next_pos;
+  int                     ha_where_pos;
+  int                     ha_limit_pos;
+  int                     ha_table_name_pos;
+  uint                    ha_sql_handler_id;
+  spider_string           insert_sql;
+  int                     insert_pos;
+  int                     insert_table_name_pos;
+  spider_string           update_sql;
+  TABLE                   *upd_tmp_tbl;
+  TMP_TABLE_PARAM         upd_tmp_tbl_prm;
+  spider_string           tmp_sql;
+  int                     tmp_sql_pos1; /* drop db nm pos at tmp_table_join */
+  int                     tmp_sql_pos2; /* create db nm pos at tmp_table_join */
+  int                     tmp_sql_pos3; /* insert db nm pos at tmp_table_join */
+  int                     tmp_sql_pos4; /* insert val pos at tmp_table_join */
+  int                     tmp_sql_pos5; /* end of drop tbl at tmp_table_join */
+  spider_string           dup_update_sql;
+  spider_string           *exec_sql;
+  spider_string           *exec_insert_sql;
+  spider_string           *exec_update_sql;
+  spider_string           *exec_tmp_sql;
+  spider_string           *exec_ha_sql;
+  bool                    reading_from_bulk_tmp_table;
+  bool                    filled_up;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  SPIDER_DB_HS_STRING_REF_BUFFER hs_upds;
+#endif
+  SPIDER_INT_HLD          *union_table_name_pos_first;
+  SPIDER_INT_HLD          *union_table_name_pos_current;
+public:
+  spider_mbase_share      *mysql_share;
+  SPIDER_LINK_FOR_HASH    *link_for_hash;
+  uchar                   *minimum_select_bitmap;
+  uchar                   direct_insert_kind;
+  spider_mbase_handler(
+    ha_spider *spider,
+    spider_mbase_share *share,
+    spider_db_mbase_util *spider_db_mbase_utility
+  );
+  virtual ~spider_mbase_handler();
+  int init();
+  int append_index_hint(
+    spider_string *str,
+    int link_idx,
+    ulong sql_type
+    );
+  int append_table_name_with_adjusting(
+    spider_string *str,
+    int link_idx,
+    ulong sql_type
+  );
+  int append_key_column_types(
+    const key_range *start_key,
+    spider_string *str
+  );
+  int append_key_join_columns_for_bka(
+    const key_range *start_key,
+    spider_string *str,
+    const char **table_aliases,
+    uint *table_alias_lengths
+  );
+  int append_tmp_table_and_sql_for_bka(
+    const key_range *start_key
+  );
+  int reuse_tmp_table_and_sql_for_bka();
+  void create_tmp_bka_table_name(
+    char *tmp_table_name,
+    int *tmp_table_name_length,
+    int link_idx
+  );
+  int append_create_tmp_bka_table(
+    const key_range *start_key,
+    spider_string *str,
+    char *tmp_table_name,
+    int tmp_table_name_length,
+    int *db_name_pos,
+    CHARSET_INFO *table_charset
+  );
+  int append_drop_tmp_bka_table(
+    spider_string *str,
+    char *tmp_table_name,
+    int tmp_table_name_length,
+    int *db_name_pos,
+    int *drop_table_end_pos,
+    bool with_semicolon
+  );
+  int append_insert_tmp_bka_table(
+    const key_range *start_key,
+    spider_string *str,
+    char *tmp_table_name,
+    int tmp_table_name_length,
+    int *db_name_pos
+  );
+  int append_union_table_and_sql_for_bka(
+    const key_range *start_key
+  );
+  int reuse_union_table_and_sql_for_bka();
+  int append_insert_for_recovery(
+    ulong sql_type,
+    int link_idx
+  );
+  int append_update(
+    const TABLE *table,
+    my_ptrdiff_t ptr_diff
+  );
+  int append_update(
+    const TABLE *table,
+    my_ptrdiff_t ptr_diff,
+    int link_idx
+  );
+  int append_delete(
+    const TABLE *table,
+    my_ptrdiff_t ptr_diff
+  );
+  int append_delete(
+    const TABLE *table,
+    my_ptrdiff_t ptr_diff,
+    int link_idx
+  );
+  int append_insert_part();
+  int append_insert(
+    spider_string *str,
+    int link_idx
+  );
+  int append_update_part();
+  int append_update(
+    spider_string *str,
+    int link_idx
+  );
+  int append_delete_part();
+  int append_delete(
+    spider_string *str
+  );
+  #if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  #ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  int append_increment_update_set_part();
+  int append_increment_update_set(
+    spider_string *str
+  );
+  #endif
+  #endif
+  int append_update_set_part();
+  int append_update_set(
+    spider_string *str
+  );
+  #ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  int append_direct_update_set_part();
+  int append_direct_update_set(
+    spider_string *str
+  );
+  int append_dup_update_pushdown_part(
+    const char *alias,
+    uint alias_length
+  );
+  int append_update_columns_part(
+    const char *alias,
+    uint alias_length
+  );
+  int check_update_columns_part();
+  int append_update_columns(
+    spider_string *str,
+    const char *alias,
+    uint alias_length
+  );
+  #endif
+  int append_select_part(
+    ulong sql_type
+  );
+  int append_select(
+    spider_string *str,
+    ulong sql_type
+  );
+  int append_table_select_part(
+    ulong sql_type
+  );
+  int append_table_select(
+    spider_string *str
+  );
+  int append_key_select_part(
+    ulong sql_type,
+    uint idx
+  );
+  int append_key_select(
+    spider_string *str,
+    uint idx
+  );
+  int append_minimum_select_part(
+    ulong sql_type
+  );
+  int append_minimum_select(
+    spider_string *str,
+    ulong sql_type
+  );
+  int append_table_select_with_alias(
+    spider_string *str,
+    const char *alias,
+    uint alias_length
+  );
+  int append_key_select_with_alias(
+    spider_string *str,
+    const KEY *key_info,
+    const char *alias,
+    uint alias_length
+  );
+  int append_minimum_select_with_alias(
+    spider_string *str,
+    const char *alias,
+    uint alias_length
+  );
+  int append_select_columns_with_alias(
+    spider_string *str,
+    const char *alias,
+    uint alias_length
+  );
+  int append_hint_after_table_part(
+    ulong sql_type
+  );
+  int append_hint_after_table(
+    spider_string *str
+  );
+  void set_where_pos(
+    ulong sql_type
+  );
+  void set_where_to_pos(
+    ulong sql_type
+  );
+  int check_item_type(
+    Item *item
+  );
+  int append_values_connector_part(
+    ulong sql_type
+  );
+  int append_values_connector(
+    spider_string *str
+  );
+  int append_values_terminator_part(
+    ulong sql_type
+  );
+  int append_values_terminator(
+    spider_string *str
+  );
+  int append_union_table_connector_part(
+    ulong sql_type
+  );
+  int append_union_table_connector(
+    spider_string *str
+  );
+  int append_union_table_terminator_part(
+    ulong sql_type
+  );
+  int append_union_table_terminator(
+    spider_string *str
+  );
+  int append_key_column_values_part(
+    const key_range *start_key,
+    ulong sql_type
+  );
+  int append_key_column_values(
+    spider_string *str,
+    const key_range *start_key
+  );
+  int append_key_column_values_with_name_part(
+    const key_range *start_key,
+    ulong sql_type
+  );
+  int append_key_column_values_with_name(
+    spider_string *str,
+    const key_range *start_key
+  );
+  int append_key_where_part(
+    const key_range *start_key,
+    const key_range *end_key,
+    ulong sql_type
+  );
+  int append_key_where(
+    spider_string *str,
+    spider_string *str_part,
+    spider_string *str_part2,
+    const key_range *start_key,
+    const key_range *end_key,
+    ulong sql_type,
+    bool set_order
+  );
+  int append_is_null_part(
+    ulong sql_type,
+    KEY_PART_INFO *key_part,
+    const key_range *key,
+    const uchar **ptr,
+    bool key_eq,
+    bool tgt_final
+  );
+  int append_is_null(
+    ulong sql_type,
+    spider_string *str,
+    spider_string *str_part,
+    spider_string *str_part2,
+    KEY_PART_INFO *key_part,
+    const key_range *key,
+    const uchar **ptr,
+    bool key_eq,
+    bool tgt_final
+  );
+  int append_where_terminator_part(
+    ulong sql_type,
+    bool set_order,
+    int key_count
+  );
+  int append_where_terminator(
+    ulong sql_type,
+    spider_string *str,
+    spider_string *str_part,
+    spider_string *str_part2,
+    bool set_order,
+    int key_count
+  );
+  int append_match_where_part(
+    ulong sql_type
+  );
+  int append_match_where(
+    spider_string *str
+  );
+  int append_update_where(
+    spider_string *str,
+    const TABLE *table,
+    my_ptrdiff_t ptr_diff
+  );
+  int append_condition_part(
+    const char *alias,
+    uint alias_length,
+    ulong sql_type,
+    bool test_flg
+  );
+  int append_condition(
+    spider_string *str,
+    const char *alias,
+    uint alias_length,
+    bool start_where,
+    ulong sql_type
+  );
+  int append_match_against_part(
+    ulong sql_type,
+    st_spider_ft_info *ft_info,
+    const char *alias,
+    uint alias_length
+  );
+  int append_match_against(
+    spider_string *str,
+    st_spider_ft_info  *ft_info,
+    const char *alias,
+    uint alias_length
+  );
+  int append_match_select_part(
+    ulong sql_type,
+    const char *alias,
+    uint alias_length
+  );
+  int append_match_select(
+    spider_string *str,
+    const char *alias,
+    uint alias_length
+  );
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  int append_sum_select_part(
+    ulong sql_type,
+    const char *alias,
+    uint alias_length
+  );
+  int append_sum_select(
+    spider_string *str,
+    const char *alias,
+    uint alias_length
+  );
+#endif
+  void set_order_pos(
+    ulong sql_type
+  );
+  void set_order_to_pos(
+    ulong sql_type
+  );
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  int append_group_by_part(
+    const char *alias,
+    uint alias_length,
+    ulong sql_type
+  );
+  int append_group_by(
+    spider_string *str,
+    const char *alias,
+    uint alias_length
+  );
+#endif
+  int append_key_order_for_merge_with_alias_part(
+    const char *alias,
+    uint alias_length,
+    ulong sql_type
+  );
+  int append_key_order_for_merge_with_alias(
+    spider_string *str,
+    const char *alias,
+    uint alias_length
+  );
+  int append_key_order_for_direct_order_limit_with_alias_part(
+    const char *alias,
+    uint alias_length,
+    ulong sql_type
+  );
+  int append_key_order_for_direct_order_limit_with_alias(
+    spider_string *str,
+    const char *alias,
+    uint alias_length
+  );
+  int append_key_order_with_alias_part(
+    const char *alias,
+    uint alias_length,
+    ulong sql_type
+  );
+  int append_key_order_for_handler(
+    spider_string *str,
+    const char *alias,
+    uint alias_length
+  );
+  int append_key_order_with_alias(
+    spider_string *str,
+    const char *alias,
+    uint alias_length
+  );
+  int append_limit_part(
+    longlong offset,
+    longlong limit,
+    ulong sql_type
+  );
+  int reappend_limit_part(
+    longlong offset,
+    longlong limit,
+    ulong sql_type
+  );
+  int append_limit(
+    spider_string *str,
+    longlong offset,
+    longlong limit
+  );
+  int append_select_lock_part(
+    ulong sql_type
+  );
+  int append_select_lock(
+    spider_string *str
+  );
+  int append_union_all_start_part(
+    ulong sql_type
+  );
+  int append_union_all_start(
+    spider_string *str
+  );
+  int append_union_all_part(
+    ulong sql_type
+  );
+  int append_union_all(
+    spider_string *str
+  );
+  int append_union_all_end_part(
+    ulong sql_type
+  );
+  int append_union_all_end(
+    spider_string *str
+  );
+  int append_multi_range_cnt_part(
+    ulong sql_type,
+    uint multi_range_cnt,
+    bool with_comma
+  );
+  int append_multi_range_cnt(
+    spider_string *str,
+    uint multi_range_cnt,
+    bool with_comma
+  );
+  int append_multi_range_cnt_with_name_part(
+    ulong sql_type,
+    uint multi_range_cnt
+  );
+  int append_multi_range_cnt_with_name(
+    spider_string *str,
+    uint multi_range_cnt
+  );
+  int append_open_handler_part(
+    ulong sql_type,
+    uint handler_id,
+    SPIDER_CONN *conn,
+    int link_idx
+  );
+  int append_open_handler(
+    spider_string *str,
+    uint handler_id,
+    SPIDER_CONN *conn,
+    int link_idx
+  );
+  int append_close_handler_part(
+    ulong sql_type,
+    int link_idx
+  );
+  int append_close_handler(
+    spider_string *str,
+    int link_idx
+  );
+  int append_insert_terminator_part(
+    ulong sql_type
+  );
+  int append_insert_terminator(
+    spider_string *str
+  );
+  int append_insert_values_part(
+    ulong sql_type
+  );
+  int append_insert_values(
+    spider_string *str
+  );
+  int append_into_part(
+    ulong sql_type
+  );
+  int append_into(
+    spider_string *str
+  );
+  void set_insert_to_pos(
+    ulong sql_type
+  );
+  int append_from_part(
+    ulong sql_type,
+    int link_idx
+  );
+  int append_from(
+    spider_string *str,
+    ulong sql_type,
+    int link_idx
+  );
+  int append_flush_tables_part(
+    ulong sql_type,
+    int link_idx,
+    bool lock
+  );
+  int append_flush_tables(
+    spider_string *str,
+    int link_idx,
+    bool lock
+  );
+  int append_optimize_table_part(
+    ulong sql_type,
+    int link_idx
+  );
+  int append_optimize_table(
+    spider_string *str,
+    int link_idx
+  );
+  int append_analyze_table_part(
+    ulong sql_type,
+    int link_idx
+  );
+  int append_analyze_table(
+    spider_string *str,
+    int link_idx
+  );
+  int append_repair_table_part(
+    ulong sql_type,
+    int link_idx,
+    HA_CHECK_OPT* check_opt
+  );
+  int append_repair_table(
+    spider_string *str,
+    int link_idx,
+    HA_CHECK_OPT* check_opt
+  );
+  int append_check_table_part(
+    ulong sql_type,
+    int link_idx,
+    HA_CHECK_OPT* check_opt
+  );
+  int append_check_table(
+    spider_string *str,
+    int link_idx,
+    HA_CHECK_OPT* check_opt
+  );
+  int append_enable_keys_part(
+    ulong sql_type,
+    int link_idx
+  );
+  int append_enable_keys(
+    spider_string *str,
+    int link_idx
+  );
+  int append_disable_keys_part(
+    ulong sql_type,
+    int link_idx
+  );
+  int append_disable_keys(
+    spider_string *str,
+    int link_idx
+  );
+  int append_delete_all_rows_part(
+    ulong sql_type
+  );
+  int append_delete_all_rows(
+    spider_string *str,
+    ulong sql_type
+  );
+  int append_truncate(
+    spider_string *str,
+    ulong sql_type,
+    int link_idx
+  );
+  int append_explain_select_part(
+    const key_range *start_key,
+    const key_range *end_key,
+    ulong sql_type,
+    int link_idx
+  );
+  int append_explain_select(
+    spider_string *str,
+    const key_range *start_key,
+    const key_range *end_key,
+    ulong sql_type,
+    int link_idx
+  );
+  bool is_sole_projection_field(
+    uint16 field_index
+  );
+  bool is_bulk_insert_exec_period(
+    bool bulk_end
+  );
+  bool sql_is_filled_up(
+    ulong sql_type
+  );
+  bool sql_is_empty(
+    ulong sql_type
+  );
+  bool support_multi_split_read();
+  bool support_bulk_update();
+  int bulk_tmp_table_insert();
+  int bulk_tmp_table_insert(
+    int link_idx
+  );
+  int bulk_tmp_table_end_bulk_insert();
+  int bulk_tmp_table_rnd_init();
+  int bulk_tmp_table_rnd_next();
+  int bulk_tmp_table_rnd_end();
+  bool need_copy_for_update(
+    int link_idx
+  );
+  bool bulk_tmp_table_created();
+  int mk_bulk_tmp_table_and_bulk_start();
+  void rm_bulk_tmp_table();
+  int store_sql_to_bulk_tmp_table(
+    spider_string *str,
+    TABLE *tmp_table
+  );
+  int restore_sql_from_bulk_tmp_table(
+    spider_string *str,
+    TABLE *tmp_table
+  );
+  int insert_lock_tables_list(
+    SPIDER_CONN *conn,
+    int link_idx
+  );
+  int append_lock_tables_list(
+    SPIDER_CONN *conn,
+    int link_idx,
+    int *appended
+  );
+  int realloc_sql(
+    ulong *realloced
+  );
+  int reset_sql(
+    ulong sql_type
+  );
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  int reset_keys(
+    ulong sql_type
+  );
+  int reset_upds(
+    ulong sql_type
+  );
+  int reset_strs(
+    ulong sql_type
+  );
+  int reset_strs_pos(
+    ulong sql_type
+  );
+  int push_back_upds(
+    SPIDER_HS_STRING_REF &info
+  );
+#endif
+  bool need_lock_before_set_sql_for_exec(
+    ulong sql_type
+  );
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+  int set_sql_for_exec(
+    ulong sql_type,
+    int link_idx,
+    SPIDER_LINK_IDX_CHAIN *link_idx_chain
+  );
+#endif
+  int set_sql_for_exec(
+    ulong sql_type,
+    int link_idx
+  );
+  int set_sql_for_exec(
+    spider_db_copy_table *tgt_ct,
+    ulong sql_type
+  );
+  int execute_sql(
+    ulong sql_type,
+    SPIDER_CONN *conn,
+    int quick_mode,
+    int *need_mon
+  );
+  int reset();
+  int sts_mode_exchange(
+    int sts_mode
+  );
+  int show_table_status(
+    int link_idx,
+    int sts_mode,
+    uint flag
+  );
+  int crd_mode_exchange(
+    int crd_mode
+  );
+  int show_index(
+    int link_idx,
+    int crd_mode
+  );
+  int simple_action(
+    uint simple_action,
+    int link_idx
+  );
+  int show_records(
+    int link_idx
+  );
+#ifdef HA_HAS_CHECKSUM_EXTENDED
+  int checksum_table(
+    int link_idx
+  );
+#endif
+  int show_last_insert_id(
+    int link_idx,
+    ulonglong &last_insert_id
+  );
+  ha_rows explain_select(
+    const key_range *start_key,
+    const key_range *end_key,
+    int link_idx
+  );
+  int lock_tables(
+    int link_idx
+  );
+  int unlock_tables(
+    int link_idx
+  );
+  int disable_keys(
+    SPIDER_CONN *conn,
+    int link_idx
+  );
+  int enable_keys(
+    SPIDER_CONN *conn,
+    int link_idx
+  );
+  int check_table(
+    SPIDER_CONN *conn,
+    int link_idx,
+    HA_CHECK_OPT* check_opt
+  );
+  int repair_table(
+    SPIDER_CONN *conn,
+    int link_idx,
+    HA_CHECK_OPT* check_opt
+  );
+  int analyze_table(
+    SPIDER_CONN *conn,
+    int link_idx
+  );
+  int optimize_table(
+    SPIDER_CONN *conn,
+    int link_idx
+  );
+  int flush_tables(
+    SPIDER_CONN *conn,
+    int link_idx,
+    bool lock
+  );
+  int flush_logs(
+    SPIDER_CONN *conn,
+    int link_idx
+  );
+  int insert_opened_handler(
+    SPIDER_CONN *conn,
+    int link_idx
+  );
+  int delete_opened_handler(
+    SPIDER_CONN *conn,
+    int link_idx
+  );
+  int sync_from_clone_source(
+    spider_db_handler *dbton_hdl
+  );
+  bool support_use_handler(
+    int use_handler
+  );
+  void minimum_select_bitmap_create();
+  bool minimum_select_bit_is_set(
+    uint field_index
+  );
+  void copy_minimum_select_bitmap(
+    uchar *bitmap
+  );
+  int init_union_table_name_pos();
+  int set_union_table_name_pos();
+  int reset_union_table_name(
+    spider_string *str,
+    int link_idx,
+    ulong sql_type
+  );
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+  int append_from_and_tables_part(
+    spider_fields *fields,
+    ulong sql_type
+  );
+  int reappend_tables_part(
+    spider_fields *fields,
+    ulong sql_type
+  );
+  int append_where_part(
+    ulong sql_type
+  );
+  int append_having_part(
+    ulong sql_type
+  );
+  int append_item_type_part(
+    Item *item,
+    const char *alias,
+    uint alias_length,
+    bool use_fields,
+    spider_fields *fields,
+    ulong sql_type
+  );
+  int append_list_item_select_part(
+    List<Item> *select,
+    const char *alias,
+    uint alias_length,
+    bool use_fields,
+    spider_fields *fields,
+    ulong sql_type
+  );
+  int append_list_item_select(
+    List<Item> *select,
+    spider_string *str,
+    const char *alias,
+    uint alias_length,
+    bool use_fields,
+    spider_fields *fields
+  );
+  int append_group_by_part(
+    ORDER *order,
+    const char *alias,
+    uint alias_length,
+    bool use_fields,
+    spider_fields *fields,
+    ulong sql_type
+  );
+  int append_group_by(
+    ORDER *order,
+    spider_string *str,
+    const char *alias,
+    uint alias_length,
+    bool use_fields,
+    spider_fields *fields
+  );
+  int append_order_by_part(
+    ORDER *order,
+    const char *alias,
+    uint alias_length,
+    bool use_fields,
+    spider_fields *fields,
+    ulong sql_type
+  );
+  int append_order_by(
+    ORDER *order,
+    spider_string *str,
+    const char *alias,
+    uint alias_length,
+    bool use_fields,
+    spider_fields *fields
+  );
+#endif
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  bool check_direct_update(
+    st_select_lex *select_lex,
+    longlong select_limit,
+    longlong offset_limit
+  );
+  bool check_direct_delete(
+    st_select_lex *select_lex,
+    longlong select_limit,
+    longlong offset_limit
+  );
+#endif
+};
+
+class spider_mysql_handler: public spider_mbase_handler
+{
+public:
+  spider_mysql_handler(
+    ha_spider *spider,
+    spider_mbase_share *share
+  );
+  ~spider_mysql_handler();
+};
+
+class spider_mariadb_handler: public spider_mbase_handler
+{
+public:
+  spider_mariadb_handler(
+    ha_spider *spider,
+    spider_mbase_share *share
+  );
+  ~spider_mariadb_handler();
+};
+
+class spider_mbase_copy_table: public spider_db_copy_table
+{
+public:
+  spider_mbase_share      *mysql_share;
+  spider_string           sql;
+  uint                    pos;
+  spider_mbase_copy_table(
+    spider_mbase_share *db_share
+  );
+  virtual ~spider_mbase_copy_table();
+  int init();
+  void set_sql_charset(
+    CHARSET_INFO *cs
+  );
+  int append_select_str();
+  int append_insert_str(
+    int insert_flg
+  );
+  int append_table_columns(
+    TABLE_SHARE *table_share
+  );
+  int append_from_str();
+  int append_table_name(
+    int link_idx
+  );
+  void set_sql_pos();
+  void set_sql_to_pos();
+  int append_copy_where(
+    spider_db_copy_table *source_ct,
+    KEY *key_info,
+    ulong *last_row_pos,
+    ulong *last_lengths
+  );
+  int append_key_order_str(
+    KEY *key_info,
+    int start_pos,
+    bool desc_flg
+  );
+  int append_limit(
+    longlong offset,
+    longlong limit
+  );
+  int append_into_str();
+  int append_open_paren_str();
+  int append_values_str();
+  int append_select_lock_str(
+    int lock_mode
+  );
+  int exec_query(
+    SPIDER_CONN *conn,
+    int quick_mode,
+    int *need_mon
+  );
+  int copy_key_row(
+    spider_db_copy_table *source_ct,
+    Field *field,
+    ulong *row_pos,
+    ulong *length,
+    const char *joint_str,
+    const int joint_length
+  );
+  int copy_row(
+    Field *field,
+    SPIDER_DB_ROW *row
+  );
+  int copy_rows(
+    TABLE *table,
+    SPIDER_DB_ROW *row,
+    ulong **last_row_pos,
+    ulong **last_lengths
+  );
+  int copy_rows(
+    TABLE *table,
+    SPIDER_DB_ROW *row
+  );
+  int append_insert_terminator();
+  int copy_insert_values(
+    spider_db_copy_table *source_ct
+  );
+};
+
+class spider_mysql_copy_table: public spider_mbase_copy_table
+{
+public:
+  spider_mysql_copy_table(
+    spider_mbase_share *db_share
+  );
+  ~spider_mysql_copy_table();
+};
+
+class spider_mariadb_copy_table: public spider_mbase_copy_table
+{
+public:
+  spider_mariadb_copy_table(
+    spider_mbase_share *db_share
+  );
+  ~spider_mariadb_copy_table();
+};
diff --git a/storage/spider/spd_db_oracle.cc b/storage/spider/spd_db_oracle.cc
new file mode 100644
index 00000000..e2a7e594
--- /dev/null
+++ b/storage/spider/spd_db_oracle.cc
@@ -0,0 +1,13856 @@
+/* Copyright (C) 2012-2018 Kentoku Shiba
+   Copyright (c) 2020, MariaDB Corporation.
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+#define MYSQL_SERVER 1
+#include <my_global.h>
+#include "mysql_version.h"
+#include "spd_environ.h"
+#if MYSQL_VERSION_ID < 50500
+#include "mysql_priv.h"
+#include <mysql/plugin.h>
+#else
+#include "sql_priv.h"
+#include "probes_mysql.h"
+#include "sql_partition.h"
+#include "sql_analyse.h"
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+#include "sql_select.h"
+#endif
+#endif
+
+#ifdef HAVE_ORACLE_OCI
+#if (defined(WIN32) || defined(_WIN32) || defined(WINDOWS) || defined(_WINDOWS))
+#include <Shlwapi.h>
+#define strcasestr StrStr
+#endif
+#include <oci.h>
+#include "spd_err.h"
+#include "spd_param.h"
+#include "spd_db_include.h"
+#include "spd_include.h"
+#include "spd_db_oracle.h"
+#include "ha_spider.h"
+#include "spd_conn.h"
+#include "spd_db_conn.h"
+#include "spd_malloc.h"
+#include "spd_sys_table.h"
+#include "spd_table.h"
+
+extern struct charset_info_st *spd_charset_utf8mb3_bin;
+
+extern handlerton *spider_hton_ptr;
+extern pthread_mutex_t spider_open_conn_mutex;
+extern HASH spider_open_connections;
+extern HASH spider_ipport_conns;
+extern SPIDER_DBTON spider_dbton[SPIDER_DBTON_SIZE];
+extern const char spider_dig_upper[];
+
+#define SPIDER_DB_WRAPPER_ORACLE "oracle"
+
+#define SPIDER_SQL_NAME_QUOTE_STR "\""
+#define SPIDER_SQL_NAME_QUOTE_LEN (sizeof(SPIDER_SQL_NAME_QUOTE_STR) - 1)
+static const char *name_quote_str = SPIDER_SQL_NAME_QUOTE_STR;
+
+#define SPIDER_SQL_ISO_READ_COMMITTED_STR "set transaction isolation level read committed"
+#define SPIDER_SQL_ISO_READ_COMMITTED_LEN sizeof(SPIDER_SQL_ISO_READ_COMMITTED_STR) - 1
+#define SPIDER_SQL_ISO_SERIALIZABLE_STR "set transaction isolation level serializable"
+#define SPIDER_SQL_ISO_SERIALIZABLE_LEN sizeof(SPIDER_SQL_ISO_SERIALIZABLE_STR) - 1
+
+#define SPIDER_SQL_START_TRANSACTION_STR "set transaction read write"
+#define SPIDER_SQL_START_TRANSACTION_LEN sizeof(SPIDER_SQL_START_TRANSACTION_STR) - 1
+
+#define SPIDER_SQL_AUTOCOMMIT_OFF_STR "set autocommit off"
+#define SPIDER_SQL_AUTOCOMMIT_OFF_LEN sizeof(SPIDER_SQL_AUTOCOMMIT_OFF_STR) - 1
+#define SPIDER_SQL_AUTOCOMMIT_ON_STR "set autocommit on"
+#define SPIDER_SQL_AUTOCOMMIT_ON_LEN sizeof(SPIDER_SQL_AUTOCOMMIT_ON_STR) - 1
+
+#define SPIDER_SQL_LOCK_TABLE_STR "lock table "
+#define SPIDER_SQL_LOCK_TABLE_LEN (sizeof(SPIDER_SQL_LOCK_TABLE_STR) - 1)
+#define SPIDER_SQL_UNLOCK_TABLE_STR "unlock tables"
+#define SPIDER_SQL_UNLOCK_TABLE_LEN (sizeof(SPIDER_SQL_UNLOCK_TABLE_STR) - 1)
+#define SPIDER_SQL_LOCK_TABLE_SHARE_MODE_STR " in share mode"
+#define SPIDER_SQL_LOCK_TABLE_SHARE_MODE_LEN (sizeof(SPIDER_SQL_LOCK_TABLE_SHARE_MODE_STR) - 1)
+#define SPIDER_SQL_LOCK_TABLE_EXCLUSIVE_MODE_STR " in exclusive mode"
+#define SPIDER_SQL_LOCK_TABLE_EXCLUSIVE_MODE_LEN (sizeof(SPIDER_SQL_LOCK_TABLE_EXCLUSIVE_MODE_STR) - 1)
+
+#define SPIDER_SQL_COMMIT_STR "commit"
+#define SPIDER_SQL_COMMIT_LEN sizeof(SPIDER_SQL_COMMIT_STR) - 1
+
+#define SPIDER_SQL_SET_NLS_DATE_FORMAT_STR "alter session set nls_date_format='YYYY-MM-DD HH24:MI:SS'"
+#define SPIDER_SQL_SET_NLS_DATE_FORMAT_LEN sizeof(SPIDER_SQL_SET_NLS_DATE_FORMAT_STR) - 1
+#define SPIDER_SQL_SET_NLS_TIME_FORMAT_STR "alter session set nls_time_format='HH24:MI:SSXFF'"
+#define SPIDER_SQL_SET_NLS_TIME_FORMAT_LEN sizeof(SPIDER_SQL_SET_NLS_TIME_FORMAT_STR) - 1
+#define SPIDER_SQL_SET_NLS_TIMESTAMP_FORMAT_STR "alter session set nls_timestamp_format='YYYY-MM-DD HH24:MI:SSXFF'"
+#define SPIDER_SQL_SET_NLS_TIMESTAMP_FORMAT_LEN sizeof(SPIDER_SQL_SET_NLS_TIMESTAMP_FORMAT_STR) - 1
+
+#define SPIDER_SQL_SELECT_WRAPPER_HEAD_STR "select * from ("
+#define SPIDER_SQL_SELECT_WRAPPER_HEAD_LEN sizeof(SPIDER_SQL_SELECT_WRAPPER_HEAD_STR) - 1
+#define SPIDER_SQL_UPDATE_WRAPPER_HEAD_STR " where rowid in (select rowid from (select rowid, row_number() over (order by "
+#define SPIDER_SQL_UPDATE_WRAPPER_HEAD_LEN sizeof(SPIDER_SQL_UPDATE_WRAPPER_HEAD_STR) - 1
+#define SPIDER_SQL_ROW_NUMBER_HEAD_STR ", row_number() over (order by "
+#define SPIDER_SQL_ROW_NUMBER_HEAD_LEN sizeof(SPIDER_SQL_ROW_NUMBER_HEAD_STR) - 1
+#define SPIDER_SQL_ROW_NUMBER_TAIL_STR "rowid) row_num"
+#define SPIDER_SQL_ROW_NUMBER_TAIL_LEN sizeof(SPIDER_SQL_ROW_NUMBER_TAIL_STR) - 1
+#define SPIDER_SQL_ROW_NUMBER_DESC_TAIL_STR "rowid desc) row_num"
+#define SPIDER_SQL_ROW_NUMBER_DESC_TAIL_LEN sizeof(SPIDER_SQL_ROW_NUMBER_DESC_TAIL_STR) - 1
+#define SPIDER_SQL_SELECT_WRAPPER_TAIL_STR ") where row_num "
+#define SPIDER_SQL_SELECT_WRAPPER_TAIL_LEN sizeof(SPIDER_SQL_SELECT_WRAPPER_TAIL_STR) - 1
+#define SPIDER_SQL_ROW_NUM_STR "row_num"
+#define SPIDER_SQL_ROW_NUM_LEN sizeof(SPIDER_SQL_ROW_NUM_STR) - 1
+#define SPIDER_SQL_ROWNUM_STR "rownum"
+#define SPIDER_SQL_ROWNUM_LEN sizeof(SPIDER_SQL_ROWNUM_STR) - 1
+#define SPIDER_SQL_NEXTVAL_STR ".nextval"
+#define SPIDER_SQL_NEXTVAL_LEN sizeof(SPIDER_SQL_NEXTVAL_STR) - 1
+#define SPIDER_SQL_CURRVAL_STR ".currval"
+#define SPIDER_SQL_CURRVAL_LEN sizeof(SPIDER_SQL_CURRVAL_STR) - 1
+#define SPIDER_SQL_FROM_DUAL_STR " from dual"
+#define SPIDER_SQL_FROM_DUAL_LEN sizeof(SPIDER_SQL_FROM_DUAL_STR) - 1
+
+#define SPIDER_SQL_SHOW_TABLE_STATUS_STR "show table status from "
+#define SPIDER_SQL_SHOW_TABLE_STATUS_LEN sizeof(SPIDER_SQL_SHOW_TABLE_STATUS_STR) - 1
+#define SPIDER_SQL_SELECT_TABLES_STATUS_STR "select `table_rows`,`avg_row_length`,`data_length`,`max_data_length`,`index_length`,`auto_increment`,`create_time`,`update_time`,`check_time` from `information_schema`.`tables` where `table_schema` = "
+#define SPIDER_SQL_SELECT_TABLES_STATUS_LEN sizeof(SPIDER_SQL_SELECT_TABLES_STATUS_STR) - 1
+
+#define SPIDER_SQL_LIKE_STR " like "
+#define SPIDER_SQL_LIKE_LEN (sizeof(SPIDER_SQL_LIKE_STR) - 1)
+#define SPIDER_SQL_LIMIT1_STR "rownum = 1"
+#define SPIDER_SQL_LIMIT1_LEN (sizeof(SPIDER_SQL_LIMIT1_STR) - 1)
+
+#define SPIDER_SQL_ADD_MONTHS_STR "add_months"
+#define SPIDER_SQL_ADD_MONTHS_LEN (sizeof(SPIDER_SQL_ADD_MONTHS_STR) - 1)
+
+#define SPIDER_ORACLE_ERR_BUF_LEN 512
+
+static uchar SPIDER_SQL_LINESTRING_HEAD_STR[] =
+  {0x00,0x00,0x00,0x00,0x01,0x02,0x00,0x00,0x00,0x02,0x00,0x00,0x00};
+#define SPIDER_SQL_LINESTRING_HEAD_LEN sizeof(SPIDER_SQL_LINESTRING_HEAD_STR)
+
+static const char *spider_db_table_lock_str[] =
+{
+  " in share mode",
+  " in share mode",
+  " in exclusive mode",
+  " in exclusive mode"
+};
+static const int spider_db_table_lock_len[] =
+{
+  sizeof(" in share mode") - 1,
+  sizeof(" in share mode") - 1,
+  sizeof(" in exclusive mode") - 1,
+  sizeof(" in exclusive mode") - 1
+};
+
+/* UTC time zone for timestamp columns */
+extern Time_zone *UTC;
+
+int spider_db_oracle_get_error(
+  sword res,
+  dvoid *hndlp,
+  int error_num,
+  const char *error1,
+  const char *error2,
+  CHARSET_INFO *access_charset,
+  char *stored_error_msg
+) {
+  sb4 error_code;
+  char buf[SPIDER_ORACLE_ERR_BUF_LEN];
+  char buf2[SPIDER_ORACLE_ERR_BUF_LEN];
+  spider_string tmp_str(buf2, SPIDER_ORACLE_ERR_BUF_LEN, system_charset_info);
+  DBUG_ENTER("spider_db_oracle_get_error");
+  tmp_str.init_calc_mem(176);
+  tmp_str.length(0);
+
+  switch (res)
+  {
+    case OCI_SUCCESS:
+      DBUG_PRINT("info",("spider res=OCI_SUCCESS"));
+      break;
+    case OCI_SUCCESS_WITH_INFO:
+      DBUG_PRINT("info",("spider res=OCI_SUCCESS_WITH_INFO"));
+      OCIErrorGet(hndlp, 1, NULL, &error_code, (OraText *) buf, sizeof(buf),
+        OCI_HTYPE_ERROR);
+      DBUG_PRINT("info",("spider error_code=%d error='%s'",error_code ,buf));
+      if (access_charset && access_charset->cset != system_charset_info->cset)
+      {
+        tmp_str.append(buf, strlen(buf), access_charset);
+      } else {
+        tmp_str.set(buf, strlen(buf), system_charset_info);
+      }
+      push_warning_printf(current_thd, SPIDER_WARN_LEVEL_WARN,
+        ER_SPIDER_ORACLE_NUM, ER_SPIDER_ORACLE_STR, res, error_code,
+        tmp_str.c_ptr_safe());
+      break;
+    case OCI_NO_DATA:
+      DBUG_PRINT("info",("spider res=OCI_NO_DATA"));
+      DBUG_RETURN(HA_ERR_END_OF_FILE);
+    case OCI_ERROR:
+      DBUG_PRINT("info",("spider res=OCI_ERROR"));
+      OCIErrorGet(hndlp, 1, NULL, &error_code, (OraText *) buf, sizeof(buf),
+        OCI_HTYPE_ERROR);
+      DBUG_PRINT("info",("spider error_code=%d error='%s'",error_code ,buf));
+      if (error_code == 1)
+      {
+        DBUG_PRINT("info",("spider found dupp key"));
+        if (stored_error_msg)
+          strmov(stored_error_msg, buf);
+        DBUG_RETURN(HA_ERR_FOUND_DUPP_KEY);
+      }
+      if (error_num)
+      {
+        if (error1)
+        {
+          if (error2)
+          {
+            my_printf_error(error_num, error1, MYF(0), error2);
+          } else {
+            my_printf_error(error_num, error1, MYF(0));
+          }
+        } else if (error2) {
+          my_error(error_num, MYF(0), error2);
+        } else {
+          my_error(error_num, MYF(0));
+        }
+      }
+      if (access_charset && access_charset->cset != system_charset_info->cset)
+      {
+        tmp_str.append(buf, strlen(buf), access_charset);
+      } else {
+        tmp_str.set(buf, strlen(buf), system_charset_info);
+      }
+      my_printf_error(ER_SPIDER_ORACLE_NUM, ER_SPIDER_ORACLE_STR, MYF(0),
+        res, error_code, tmp_str.c_ptr_safe());
+      if (error_num)
+      {
+        DBUG_RETURN(error_num);
+      } else {
+        DBUG_RETURN(ER_SPIDER_ORACLE_NUM);
+      }
+    case OCI_INVALID_HANDLE:
+    case OCI_NEED_DATA:
+      if (res == OCI_INVALID_HANDLE)
+        DBUG_PRINT("info",("spider res=OCI_INVALID_HANDLE"));
+      else
+        DBUG_PRINT("info",("spider res=OCI_NEED_DATA"));
+    default:
+      DBUG_PRINT("info",("spider res=%d", res));
+      if (error_num)
+      {
+        if (error1)
+        {
+          if (error2)
+          {
+            my_printf_error(error_num, error1, MYF(0), error2);
+          } else {
+            my_printf_error(error_num, error1, MYF(0));
+          }
+        } else if (error2) {
+          my_error(error_num, MYF(0), error2);
+        } else {
+          my_error(error_num, MYF(0));
+        }
+      }
+      my_printf_error(ER_SPIDER_ORACLE_NUM, ER_SPIDER_ORACLE_STR, MYF(0),
+        res, 0, "");
+      if (error_num)
+      {
+        DBUG_RETURN(error_num);
+      } else {
+        DBUG_RETURN(ER_SPIDER_ORACLE_NUM);
+      }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_init()
+{
+  DBUG_ENTER("spider_oracle_init");
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_deinit()
+{
+  DBUG_ENTER("spider_oracle_deinit");
+  DBUG_RETURN(0);
+}
+
+spider_db_share *spider_oracle_create_share(
+  SPIDER_SHARE *share
+) {
+  DBUG_ENTER("spider_oracle_create_share");
+  DBUG_RETURN(new spider_oracle_share(share));
+}
+
+spider_db_handler *spider_oracle_create_handler(
+  ha_spider *spider,
+  spider_db_share *db_share
+) {
+  DBUG_ENTER("spider_oracle_create_handler");
+  DBUG_RETURN(new spider_oracle_handler(spider,
+    (spider_oracle_share *) db_share));
+}
+
+spider_db_copy_table *spider_oracle_create_copy_table(
+  spider_db_share *db_share
+) {
+  DBUG_ENTER("spider_oracle_create_copy_table");
+  DBUG_RETURN(new spider_oracle_copy_table(
+    (spider_oracle_share *) db_share));
+}
+
+SPIDER_DB_CONN *spider_oracle_create_conn(
+  SPIDER_CONN *conn
+) {
+  DBUG_ENTER("spider_oracle_create_conn");
+  DBUG_RETURN(new spider_db_oracle(conn));
+}
+
+bool spider_oracle_support_direct_join(
+) {
+  DBUG_ENTER("spider_oracle_support_direct_join");
+  DBUG_RETURN(FALSE);
+}
+
+spider_db_oracle_util spider_db_oracle_utility;
+
+SPIDER_DBTON spider_dbton_oracle = {
+  0,
+  SPIDER_DB_WRAPPER_ORACLE,
+  SPIDER_DB_ACCESS_TYPE_SQL,
+  spider_oracle_init,
+  spider_oracle_deinit,
+  spider_oracle_create_share,
+  spider_oracle_create_handler,
+  spider_oracle_create_copy_table,
+  spider_oracle_create_conn,
+  spider_oracle_support_direct_join,
+  &spider_db_oracle_utility,
+  "For communicating Oracle using native protocol",
+  "1.0.0",
+  SPIDER_MATURITY_BETA
+};
+
+spider_db_oracle_row::spider_db_oracle_row() :
+  spider_db_row(spider_dbton_oracle.dbton_id),
+  db_conn(NULL), result(NULL),
+  ind(NULL), val(NULL), rlen(NULL), ind_first(NULL), val_first(NULL),
+  rlen_first(NULL), val_str(NULL), val_str_first(NULL), defnp(NULL),
+  lobhp(NULL), colhp(NULL), coltp(NULL), colsz(NULL), field_count(0),
+  row_size(NULL), row_size_first(NULL), access_charset(NULL), cloned(FALSE)
+{
+  DBUG_ENTER("spider_db_oracle_row::spider_db_oracle_row");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_db_oracle_row::~spider_db_oracle_row()
+{
+  DBUG_ENTER("spider_db_oracle_row::~spider_db_oracle_row");
+  DBUG_PRINT("info",("spider this=%p", this));
+  deinit();
+  DBUG_VOID_RETURN;
+}
+
+int spider_db_oracle_row::store_to_field(
+  Field *field,
+  CHARSET_INFO *access_charset
+) {
+  DBUG_ENTER("spider_db_oracle_row::store_to_field");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider ind=%d", *ind));
+  if (*ind == -1)
+  {
+    DBUG_PRINT("info", ("spider field is null"));
+    field->set_null();
+    field->reset();
+  } else {
+    DBUG_PRINT("info", ("spider field->type()=%u", field->type()));
+    field->set_notnull();
+    if (field->type() == MYSQL_TYPE_YEAR)
+    {
+      field->store(val_str->ptr(), 4,
+        field->table->s->table_charset);
+    } else if (field->type() == MYSQL_TYPE_DATE)
+    {
+      field->store(val_str->ptr(), 10,
+        field->table->s->table_charset);
+    } else if (field->type() == MYSQL_TYPE_TIME)
+    {
+      field->store(val_str->ptr() + 11, 8,
+        field->table->s->table_charset);
+    } else {
+      DBUG_PRINT("info", ("spider val_str->length()=%u", val_str->length()));
+      if (field->flags & BLOB_FLAG)
+      {
+        DBUG_PRINT("info", ("spider blob field"));
+        ((Field_blob *)field)->set_ptr(
+          val_str->length(), (uchar *) val_str->ptr());
+      } else {
+        field->store(val_str->ptr(), val_str->length(),
+          field->table->s->table_charset);
+      }
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle_row::append_to_str(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_db_oracle_row::append_to_str");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(val_str->length()))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(val_str->ptr(), val_str->length());
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle_row::append_escaped_to_str(
+  spider_string *str,
+  uint dbton_id
+) {
+  DBUG_ENTER("spider_db_oracle_row::append_escaped_to_str");
+  DBUG_PRINT("info",("spider this=%p", this));
+/*
+  spider_string tmp_str(*val, *rlen, str->charset());
+  tmp_str.init_calc_mem(174);
+  tmp_str.length(*rlen);
+#ifndef DBUG_OFF
+  tmp_str.c_ptr_safe();
+#endif
+  if (str->reserve(*rlen * 2))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  util.append_escaped(str, tmp_str.get_str());
+*/
+  if (str->reserve(val_str->length() * 2))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  spider_dbton[dbton_id].db_util->append_escaped_util(str, val_str->get_str());
+  DBUG_RETURN(0);
+}
+
+void spider_db_oracle_row::first()
+{
+  DBUG_ENTER("spider_db_oracle_row::first");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider ind_first=%p", ind_first));
+  ind = ind_first;
+  DBUG_PRINT("info",("spider val_first=%p", val_first));
+  val = val_first;
+  DBUG_PRINT("info",("spider rlen_first=%p", rlen_first));
+  rlen = rlen_first;
+  DBUG_PRINT("info",("spider row_size_first=%p", row_size_first));
+  row_size = row_size_first;
+  DBUG_PRINT("info",("spider val_str_first=%p", val_str_first));
+  val_str = val_str_first;
+  DBUG_VOID_RETURN;
+}
+
+void spider_db_oracle_row::next()
+{
+  DBUG_ENTER("spider_db_oracle_row::next");
+  DBUG_PRINT("info",("spider this=%p", this));
+  ind++;
+  val++;
+  rlen++;
+  row_size++;
+  val_str++;
+  DBUG_VOID_RETURN;
+}
+
+bool spider_db_oracle_row::is_null()
+{
+  DBUG_ENTER("spider_db_oracle_row::is_null");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN((*ind == -1));
+}
+
+int spider_db_oracle_row::val_int()
+{
+  DBUG_ENTER("spider_db_oracle_row::val_int");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN((*ind != -1) ? atoi(*val) : 0);
+}
+
+double spider_db_oracle_row::val_real()
+{
+  DBUG_ENTER("spider_db_oracle_row::val_real");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN((*ind != -1) ? my_atof(*val) : 0.0);
+}
+
+my_decimal *spider_db_oracle_row::val_decimal(
+  my_decimal *decimal_value,
+  CHARSET_INFO *access_charset
+) {
+  DBUG_ENTER("spider_db_oracle_row::val_decimal");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (*ind == -1)
+    DBUG_RETURN(NULL);
+
+#ifdef SPIDER_HAS_DECIMAL_OPERATION_RESULTS_VALUE_TYPE
+  decimal_operation_results(str2my_decimal(0, *val, *rlen, access_charset,
+    decimal_value), "", "");
+#else
+  decimal_operation_results(str2my_decimal(0, *val, *rlen, access_charset,
+    decimal_value));
+#endif
+
+  DBUG_RETURN(decimal_value);
+}
+
+SPIDER_DB_ROW *spider_db_oracle_row::clone()
+{
+  uint i;
+  spider_db_oracle_row *clone_row;
+  DBUG_ENTER("spider_db_oracle_row::clone");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!(clone_row = new spider_db_oracle_row(dbton_id)))
+  {
+    DBUG_RETURN(NULL);
+  }
+  clone_row->db_conn = db_conn;
+  clone_row->result = result;
+  clone_row->field_count = field_count;
+  clone_row->record_size = record_size;
+  clone_row->access_charset = access_charset;
+  clone_row->cloned = TRUE;
+  if (clone_row->init())
+  {
+    delete clone_row;
+    DBUG_RETURN(NULL);
+  }
+  memcpy(clone_row->ind, ind_first, sizeof(ub2) * field_count * 4 +
+    sizeof(ulong) * field_count);
+  for (i = 0; i < field_count; i++)
+  {
+    if (clone_row->val_str[i].copy(val_str_first[i]))
+    {
+      delete clone_row;
+      DBUG_RETURN(NULL);
+    }
+  }
+  DBUG_RETURN((SPIDER_DB_ROW *) clone_row);
+}
+
+int spider_db_oracle_row::store_to_tmp_table(
+  TABLE *tmp_table,
+  spider_string *str
+) {
+  uint i;
+  DBUG_ENTER("spider_db_oracle_row::store_to_tmp_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str->length(0);
+  for (i = 0; i < field_count; i++)
+  {
+    if (row_size_first[i])
+    {
+      if (str->reserve(val_str_first[i].length()))
+      {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+      str->q_append(val_str_first[i].ptr(), val_str_first[i].length());
+    }
+  }
+  tmp_table->field[0]->set_notnull();
+  tmp_table->field[0]->store(
+    (const char *) row_size_first,
+    sizeof(ulong) * field_count, &my_charset_bin);
+  tmp_table->field[1]->set_notnull();
+  tmp_table->field[1]->store(
+    str->ptr(), str->length(), &my_charset_bin);
+  tmp_table->field[2]->set_notnull();
+  tmp_table->field[2]->store(
+    (char *) ind_first, (uint) (sizeof(sb2) * field_count), &my_charset_bin);
+  DBUG_RETURN(tmp_table->file->ha_write_row(tmp_table->record[0]));
+}
+
+uint spider_db_oracle_row::get_byte_size()
+{
+  DBUG_ENTER("spider_db_oracle_row::get_byte_size");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(record_size);
+}
+
+int spider_db_oracle_row::init()
+{
+  char *tmp_val;
+  uint i;
+  DBUG_ENTER("spider_db_oracle_row::init");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (
+    !(ind = (sb2 *)
+      spider_bulk_malloc(spider_current_trx, 161, MYF(MY_WME | MY_ZEROFILL),
+        &ind, (uint) (sizeof(sb2) * field_count),
+        &rlen, (uint) (sizeof(ub2) * field_count),
+        &coltp, (uint) (sizeof(ub2) * field_count),
+        &colsz, (uint) (sizeof(ub2) * field_count),
+        &row_size, (uint) (sizeof(ulong) * field_count),
+        &val, (uint) (sizeof(char *) * field_count),
+        &tmp_val, (uint) (MAX_FIELD_WIDTH * field_count),
+        &defnp, (uint) (sizeof(OCIDefine *) * field_count),
+        &lobhp, (uint) (sizeof(OCILobLocator *) * field_count),
+        &colhp, (uint) (sizeof(OCIParam *) * field_count),
+        NullS)
+    ) ||
+    !(val_str = new spider_string[field_count])
+  ) {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  ind_first = ind;
+  val_first = val;
+  rlen_first = rlen;
+  row_size_first = row_size;
+  val_str_first = val_str;
+  for (i = 0; i < field_count; i++)
+  {
+    val[i] = tmp_val;
+    val_str[i].init_calc_mem(177);
+    val_str[i].set(tmp_val, MAX_FIELD_WIDTH, access_charset);
+    tmp_val += MAX_FIELD_WIDTH;
+  }
+  DBUG_RETURN(0);
+}
+
+void spider_db_oracle_row::deinit()
+{
+  uint i;
+  DBUG_ENTER("spider_db_oracle_row::deinit");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!cloned)
+  {
+    for (i = 0; i < field_count; i++)
+    {
+      if (defnp && defnp[i])
+      {
+        OCIHandleFree(defnp[i], OCI_HTYPE_DEFINE);
+        defnp[i] = NULL;
+      }
+      if (lobhp && lobhp[i])
+      {
+        OCIDescriptorFree(lobhp[i], OCI_DTYPE_LOB);
+        lobhp[i] = NULL;
+      }
+    }
+  }
+  if (val_str_first)
+  {
+    delete [] val_str_first;
+    val_str_first = NULL;
+  }
+  if (ind_first)
+  {
+    spider_free(spider_current_trx, ind_first, MYF(0));
+    ind_first = NULL;
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_db_oracle_row::define()
+{
+  sword res;
+  uint i;
+  DBUG_ENTER("spider_db_oracle_row::define");
+  DBUG_PRINT("info",("spider this=%p", this));
+  for (i = 0; i < field_count; i++)
+  {
+    if (coltp[i] == SQLT_BLOB)
+    {
+      res = OCIDescriptorAlloc(db_conn->envhp, (dvoid **) &lobhp[i],
+        OCI_DTYPE_LOB, 0, 0);
+      if (res != OCI_SUCCESS)
+      {
+        DBUG_RETURN(
+          spider_db_oracle_get_error(res, db_conn->errhp, 0, NULL, NULL,
+            access_charset, NULL));
+      }
+      res = OCIDefineByPos(result->stmtp, &defnp[i], db_conn->errhp, i + 1,
+        &lobhp[i], 0, SQLT_BLOB, &ind[i], &rlen[i], NULL,
+        OCI_DEFAULT);
+    } else if (coltp[i] == SQLT_DAT)
+    {
+      res = OCIDefineByPos(result->stmtp, &defnp[i], db_conn->errhp, i + 1,
+        (char *) val_str[i].ptr() + 20, sizeof(ub1) * 7, SQLT_DAT, &ind[i],
+        &rlen[i], NULL, OCI_DEFAULT);
+    } else {
+      if (val_str[i].alloc(colsz[i]))
+      {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+      res = OCIDefineByPos(result->stmtp, &defnp[i], db_conn->errhp, i + 1,
+        (char *) val_str[i].ptr(), colsz[i], SQLT_CHR, &ind[i], &rlen[i], NULL,
+        OCI_DEFAULT);
+    }
+    if (res != OCI_SUCCESS)
+    {
+      DBUG_RETURN(
+        spider_db_oracle_get_error(res, db_conn->errhp, 0, NULL, NULL,
+          access_charset, NULL));
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle_row::fetch()
+{
+  sword res;
+  uint i;
+  DBUG_ENTER("spider_db_oracle_row::fetch");
+  DBUG_PRINT("info",("spider this=%p", this));
+  record_size = 0;
+  for (i = 0; i < field_count; i++)
+  {
+    if (ind[i] == -1)
+    {
+      DBUG_PRINT("info",("spider NULL"));
+      val_str[i].length(0);
+    } else {
+      if (coltp[i] == SQLT_BLOB)
+      {
+        DBUG_PRINT("info",("spider SQLT_BLOB"));
+        oraub8 len;
+        res = OCILobGetLength2(db_conn->svchp, db_conn->errhp, lobhp[i], &len);
+        if (res != OCI_SUCCESS)
+        {
+          DBUG_RETURN(
+            spider_db_oracle_get_error(res, db_conn->errhp, 0, NULL, NULL,
+              access_charset, NULL));
+        }
+#ifndef DBUG_OFF
+        {
+          ulonglong print_len = len;
+          DBUG_PRINT("info",("spider len=%llu", print_len));
+        }
+#endif
+        if (val_str[i].alloc(len))
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        res = OCILobRead2(db_conn->svchp, db_conn->errhp, lobhp[i], &len,
+          NULL, 1, (char *) val_str[i].ptr(), len, OCI_ONE_PIECE, NULL, NULL,
+          0, 0);
+        if (res != OCI_SUCCESS)
+        {
+          DBUG_RETURN(
+            spider_db_oracle_get_error(res, db_conn->errhp, 0, NULL, NULL,
+              access_charset, NULL));
+        }
+#ifndef DBUG_OFF
+        {
+          ulonglong print_len = len;
+          DBUG_PRINT("info",("spider lenb=%llu", print_len));
+        }
+#endif
+        val_str[i].length(len);
+      } else if (coltp[i] == SQLT_DAT)
+      {
+        DBUG_PRINT("info",("spider SQLT_DAT"));
+        char *val = (char *) val_str[i].ptr();
+        ub1 *src = (ub1 *) val + 20;
+        val_str[i].length(19);
+        if (src[0] < 100)
+          my_sprintf(val, (val, "0000-00-00 00:00:00"));
+        else
+          my_sprintf(val, (val, "%02u%02u-%02u-%02u %02u:%02u:%02u",
+            src[0] - 100, src[1] - 100, src[2], src[3],
+            src[4] - 1, src[5] - 1, src[6] - 1));
+      } else {
+        val_str[i].length(rlen[i]);
+      }
+    }
+    row_size[i] = val_str[i].length();
+    record_size += row_size[i];
+  }
+  DBUG_RETURN(0);
+}
+
+spider_db_oracle_result::spider_db_oracle_result(SPIDER_DB_CONN *in_db_conn) :
+  spider_db_result(in_db_conn),
+  db_conn(NULL), stmtp(NULL), field_count(0), access_charset(NULL),
+  fetched(FALSE), row(in_db_conn->dbton_id)
+{
+  DBUG_ENTER("spider_db_oracle_result::spider_db_oracle_result");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_db_oracle_result::~spider_db_oracle_result()
+{
+  DBUG_ENTER("spider_db_oracle_result::~spider_db_oracle_result");
+  DBUG_PRINT("info",("spider this=%p", this));
+  free_result();
+  DBUG_VOID_RETURN;
+}
+
+bool spider_db_oracle_result::has_result()
+{
+  DBUG_ENTER("spider_db_oracle_result::has_result");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(stmtp);
+}
+
+void spider_db_oracle_result::free_result()
+{
+  DBUG_ENTER("spider_db_oracle_result::free_result");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (stmtp)
+  {
+    OCIHandleFree(stmtp, OCI_HTYPE_STMT);
+    stmtp = NULL;
+  }
+  DBUG_VOID_RETURN;
+}
+
+SPIDER_DB_ROW *spider_db_oracle_result::current_row()
+{
+  DBUG_ENTER("spider_db_oracle_result::current_row");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN((SPIDER_DB_ROW *) row.clone());
+}
+
+SPIDER_DB_ROW *spider_db_oracle_result::fetch_row()
+{
+  sword res;
+  DBUG_ENTER("spider_db_oracle_result::fetch_row");
+  DBUG_PRINT("info",("spider this=%p", this));
+  row.ind = row.ind_first;
+  row.val = row.val_first;
+  row.rlen = row.rlen_first;
+  row.row_size = row.row_size_first;
+  row.val_str = row.val_str_first;
+  if (fetched)
+  {
+    /* already fetched */
+    fetched = FALSE;
+  } else {
+    res = OCIStmtFetch2(stmtp, db_conn->errhp, 1, OCI_FETCH_NEXT, 0,
+      OCI_DEFAULT);
+    if (res != OCI_SUCCESS)
+    {
+      store_error_num = spider_db_oracle_get_error(res, db_conn->errhp, 0,
+        NULL, NULL, access_charset, NULL);
+      DBUG_RETURN(NULL);
+    }
+  }
+  if ((store_error_num = row.fetch()))
+  {
+    DBUG_RETURN(NULL);
+  }
+  DBUG_RETURN((SPIDER_DB_ROW *) &row);
+}
+
+SPIDER_DB_ROW *spider_db_oracle_result::fetch_row_from_result_buffer(
+  spider_db_result_buffer *spider_res_buf
+) {
+  sword res;
+  DBUG_ENTER("spider_db_oracle_result::fetch_row_from_result_buffer");
+  DBUG_PRINT("info",("spider this=%p", this));
+  row.ind = row.ind_first;
+  row.val = row.val_first;
+  row.rlen = row.rlen_first;
+  row.row_size = row.row_size_first;
+  row.val_str = row.val_str_first;
+  if (fetched)
+  {
+    /* already fetched */
+    fetched = FALSE;
+  } else {
+    res = OCIStmtFetch2(stmtp, db_conn->errhp, 1, OCI_FETCH_NEXT, 0,
+      OCI_DEFAULT);
+    if (res != OCI_SUCCESS)
+    {
+      store_error_num = spider_db_oracle_get_error(res, db_conn->errhp, 0,
+        NULL, NULL, access_charset, NULL);
+      DBUG_RETURN(NULL);
+    }
+  }
+  if ((store_error_num = row.fetch()))
+  {
+    DBUG_RETURN(NULL);
+  }
+  DBUG_RETURN((SPIDER_DB_ROW *) &row);
+}
+
+SPIDER_DB_ROW *spider_db_oracle_result::fetch_row_from_tmp_table(
+  TABLE *tmp_table
+) {
+  uint i;
+  const char *str;
+  spider_string tmp_str1, tmp_str2, tmp_str3;
+  DBUG_ENTER("spider_db_oracle_result::fetch_row_from_tmp_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  tmp_str1.init_calc_mem(175);
+  tmp_str2.init_calc_mem(178);
+  tmp_str3.init_calc_mem(179);
+  tmp_table->field[0]->val_str(tmp_str1.get_str());
+  tmp_table->field[1]->val_str(tmp_str2.get_str());
+  tmp_table->field[2]->val_str(tmp_str3.get_str());
+  tmp_str1.mem_calc();
+  tmp_str2.mem_calc();
+  tmp_str3.mem_calc();
+  row.ind = row.ind_first;
+  row.val = row.val_first;
+  row.rlen = row.rlen_first;
+  row.row_size = row.row_size_first;
+  row.val_str = row.val_str_first;
+  DBUG_PRINT("info",("spider tmp_str1.length()=%u", tmp_str1.length()));
+  DBUG_PRINT("info",("spider tmp_str2.length()=%u", tmp_str2.length()));
+  DBUG_PRINT("info",("spider tmp_str3.length()=%u", tmp_str3.length()));
+  memcpy(row.ind, tmp_str3.ptr(), tmp_str3.length());
+  memcpy(row.row_size, tmp_str1.ptr(), tmp_str1.length());
+  row.field_count = tmp_str1.length() / sizeof(ulong);
+  str = tmp_str2.ptr();
+  for (i = 0; i < row.field_count; i++)
+  {
+    row.val_str[i].length(0);
+    if (row.row_size[i])
+    {
+      if (row.val_str[i].reserve(row.row_size[i]))
+      {
+        store_error_num = HA_ERR_OUT_OF_MEM;
+        DBUG_RETURN(NULL);
+      }
+      row.val_str[i].q_append(str, row.row_size[i]);
+      str += row.row_size[i];
+    }
+  }
+  row.record_size = tmp_str2.length();
+  DBUG_RETURN((SPIDER_DB_ROW *) &row);
+}
+
+int spider_db_oracle_result::fetch_table_status(
+  int mode,
+  ha_statistics &stat
+) {
+  DBUG_ENTER("spider_db_oracle_result::fetch_table_status");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* TODO: develop later */
+  stat.records = 2;
+  stat.mean_rec_length = 65535;
+  stat.data_file_length = 65535;
+  stat.max_data_file_length = 65535;
+  stat.index_file_length = 65535;
+/*
+  auto_increment_value = 0;
+*/
+  stat.create_time = (time_t) 0;
+  stat.update_time = (time_t) 0;
+  stat.check_time = (time_t) 0;
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle_result::fetch_table_records(
+  int mode,
+  ha_rows &records
+) {
+  DBUG_ENTER("spider_db_oracle_result::fetch_table_records");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!fetch_row())
+  {
+    records = 0;
+  } else {
+    records = row.val_int();
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle_result::fetch_table_cardinality(
+  int mode,
+  TABLE *table,
+  longlong *cardinality,
+  uchar *cardinality_upd,
+  int bitmap_size
+) {
+  DBUG_ENTER("spider_db_oracle_result::fetch_table_cardinality");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* TODO: develop later */
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle_result::fetch_table_mon_status(
+  int &status
+) {
+  DBUG_ENTER("spider_db_oracle_result::fetch_table_mon_status");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* TODO: develop later */
+  status = SPIDER_LINK_MON_OK;
+  DBUG_RETURN(0);
+}
+
+longlong spider_db_oracle_result::num_rows()
+{
+  sword res;
+  ub4 rowcnt;
+  DBUG_ENTER("spider_db_oracle_result::num_rows");
+  DBUG_PRINT("info",("spider this=%p", this));
+  res = OCIAttrGet(stmtp, OCI_HTYPE_STMT, &rowcnt, 0,
+    OCI_ATTR_ROW_COUNT, db_conn->errhp);
+  if (res != OCI_SUCCESS)
+  {
+    spider_db_oracle_get_error(res, db_conn->errhp, 0, NULL, NULL,
+      access_charset, NULL);
+    DBUG_RETURN(0);
+  }
+  DBUG_PRINT("info",("spider rowcnt=%u", rowcnt));
+  DBUG_RETURN((longlong) rowcnt);
+}
+
+uint spider_db_oracle_result::num_fields()
+{
+  sword res;
+  ub4 parmcnt;
+  DBUG_ENTER("spider_db_oracle_result::num_fields");
+  DBUG_PRINT("info",("spider this=%p", this));
+  res = OCIAttrGet(stmtp, OCI_HTYPE_STMT, &parmcnt, 0,
+    OCI_ATTR_PARAM_COUNT, db_conn->errhp);
+  if (res != OCI_SUCCESS)
+  {
+    spider_db_oracle_get_error(res, db_conn->errhp, 0, NULL, NULL,
+      access_charset, NULL);
+    DBUG_RETURN(0);
+  }
+  DBUG_RETURN((uint) parmcnt);
+}
+
+void spider_db_oracle_result::move_to_pos(
+  longlong pos
+) {
+  sword res;
+  DBUG_ENTER("spider_db_oracle_result::move_to_pos");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider pos=%lld", pos));
+  res = OCIStmtFetch2(stmtp, db_conn->errhp, 1, OCI_FETCH_ABSOLUTE, pos,
+    OCI_DEFAULT);
+  if (res != OCI_SUCCESS)
+  {
+    spider_db_oracle_get_error(res, db_conn->errhp, 0, NULL, NULL,
+      access_charset, NULL);
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_db_oracle_result::set_column_info()
+{
+  sword res;
+  uint i;
+  DBUG_ENTER("spider_db_oracle_result::set_column_info");
+  DBUG_PRINT("info",("spider this=%p", this));
+  for (i = 0; i < field_count; i++)
+  {
+    res = OCIParamGet(stmtp, OCI_HTYPE_STMT, db_conn->errhp,
+      (dvoid **) &row.colhp[i], i + 1);
+    if (res != OCI_SUCCESS)
+    {
+      DBUG_RETURN(spider_db_oracle_get_error(res, db_conn->errhp, 0, NULL,
+        NULL, access_charset, NULL));
+    }
+    res = OCIAttrGet(row.colhp[i], OCI_DTYPE_PARAM, &row.coltp[i], NULL,
+      OCI_ATTR_DATA_TYPE, db_conn->errhp);
+    if (res != OCI_SUCCESS)
+    {
+      DBUG_RETURN(spider_db_oracle_get_error(res, db_conn->errhp, 0, NULL,
+        NULL, access_charset, NULL));
+    }
+    res = OCIAttrGet(row.colhp[i], OCI_DTYPE_PARAM, &row.colsz[i], NULL,
+      OCI_ATTR_DATA_SIZE, db_conn->errhp);
+    if (res != OCI_SUCCESS)
+    {
+      DBUG_RETURN(spider_db_oracle_get_error(res, db_conn->errhp, 0, NULL,
+        NULL, access_charset, NULL));
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle_result::get_errno()
+{
+  DBUG_ENTER("spider_db_oracle_result::get_errno");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider store_error_num=%d", store_error_num));
+  DBUG_RETURN(store_error_num);
+}
+
+#ifdef SPIDER_HAS_DISCOVER_TABLE_STRUCTURE
+int spider_db_oracle_result::fetch_columns_for_discover_table_structure(
+  spider_string *str,
+  CHARSET_INFO *access_charset
+) {
+  DBUG_ENTER("spider_db_oracle_result::fetch_columns_for_discover_table_structure");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(HA_ERR_WRONG_COMMAND);
+}
+
+int spider_db_oracle_result::fetch_index_for_discover_table_structure(
+  spider_string *str,
+  CHARSET_INFO *access_charset
+) {
+  DBUG_ENTER("spider_db_oracle_result::fetch_index_for_discover_table_structure");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(HA_ERR_WRONG_COMMAND);
+}
+
+int spider_db_oracle_result::fetch_table_for_discover_table_structure(
+  spider_string *str,
+  SPIDER_SHARE *spider_share,
+  CHARSET_INFO *access_charset
+) {
+  DBUG_ENTER("spider_db_oracle_result::fetch_table_for_discover_table_structure");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(HA_ERR_WRONG_COMMAND);
+}
+#endif
+
+spider_db_oracle::spider_db_oracle(
+  SPIDER_CONN *conn
+) : spider_db_conn(conn), envhp(NULL), errhp(NULL), srvhp(NULL), svchp(NULL),
+  usrhp(NULL), stmtp(NULL), txnhp(NULL), result(NULL), table_lock_mode(0),
+  lock_table_hash_inited(FALSE), handler_open_array_inited(FALSE)
+{
+  DBUG_ENTER("spider_db_oracle::spider_db_oracle");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_db_oracle::~spider_db_oracle()
+{
+  DBUG_ENTER("spider_db_oracle::~spider_db_oracle");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (handler_open_array_inited)
+  {
+    reset_opened_handler();
+    spider_free_mem_calc(spider_current_trx,
+      handler_open_array_id,
+      handler_open_array.max_element *
+      handler_open_array.size_of_element);
+    delete_dynamic(&handler_open_array);
+  }
+  if (lock_table_hash_inited)
+  {
+    spider_free_mem_calc(spider_current_trx,
+      lock_table_hash_id,
+      lock_table_hash.array.max_element *
+      lock_table_hash.array.size_of_element);
+    my_hash_free(&lock_table_hash);
+  }
+  disconnect();
+  DBUG_VOID_RETURN;
+}
+
+int spider_db_oracle::init()
+{
+  DBUG_ENTER("spider_db_oracle::init");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (
+    my_hash_init(&lock_table_hash, spd_charset_utf8mb3_bin, 32, 0, 0,
+      (my_hash_get_key) spider_link_get_key, 0, 0)
+  ) {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  spider_alloc_calc_mem_init(lock_table_hash, 199);
+  spider_alloc_calc_mem(spider_current_trx,
+    lock_table_hash,
+    lock_table_hash.array.max_element *
+    lock_table_hash.array.size_of_element);
+  lock_table_hash_inited = TRUE;
+
+  if (
+    SPD_INIT_DYNAMIC_ARRAY2(&handler_open_array,
+      sizeof(SPIDER_LINK_FOR_HASH *), NULL, 16, 16, MYF(MY_WME))
+  ) {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  spider_alloc_calc_mem_init(handler_open_array, 164);
+  spider_alloc_calc_mem(spider_current_trx,
+    handler_open_array,
+    handler_open_array.max_element *
+    handler_open_array.size_of_element);
+  handler_open_array_inited = TRUE;
+  DBUG_RETURN(0);
+}
+
+bool spider_db_oracle::is_connected()
+{
+  DBUG_ENTER("spider_db_oracle::is_connected");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(svchp);
+}
+
+void spider_db_oracle::bg_connect()
+{
+  sword res;
+  DBUG_ENTER("spider_db_oracle::bg_connect");
+  DBUG_PRINT("info",("spider this=%p", this));
+  res = OCIEnvNlsCreate(&envhp, OCI_DEFAULT, 0, 0, 0, 0, 0, 0, 0, 0);
+/*
+  res = OCIEnvCreate(&envhp, OCI_THREADED, 0, 0, 0, 0, 0, 0);
+*/
+  if (res != OCI_SUCCESS)
+  {
+    DBUG_PRINT("info",("spider create environment error"));
+    stored_error_num = set_error(res, errhp, 0, NULL, NULL);
+    goto error;
+  }
+  DBUG_PRINT("info",("spider OCI init envhp=%p", envhp));
+
+  res = OCIHandleAlloc(envhp, (dvoid **) &errhp, OCI_HTYPE_ERROR, 0, 0);
+  if (res != OCI_SUCCESS)
+  {
+    DBUG_PRINT("info",("spider create error handler error"));
+    stored_error_num = set_error(res, errhp, 0, NULL, NULL);
+    bg_disconnect();
+    goto error;
+  }
+  DBUG_PRINT("info",("spider OCI init errhp=%p", errhp));
+
+  res = OCIHandleAlloc(envhp, (dvoid **) &srvhp, OCI_HTYPE_SERVER, 0, 0);
+  if (res != OCI_SUCCESS)
+  {
+    DBUG_PRINT("info",("spider create server handler error"));
+    stored_error_num = set_error(res, errhp, 0, NULL, NULL);
+    bg_disconnect();
+    goto error;
+  }
+  DBUG_PRINT("info",("spider OCI init srvhp=%p", srvhp));
+
+  res = OCIServerAttach(srvhp, errhp, (OraText *) tgt_host, strlen(tgt_host),
+    OCI_DEFAULT);
+  if (res != OCI_SUCCESS)
+  {
+    DBUG_PRINT("info",("spider attach server error"));
+    stored_error_num = set_error(res, errhp, 0, NULL, NULL);
+    bg_disconnect();
+    goto error;
+  }
+
+  res = OCIHandleAlloc(envhp, (dvoid **) &svchp, OCI_HTYPE_SVCCTX, 0, 0);
+  if (res != OCI_SUCCESS)
+  {
+    DBUG_PRINT("info",("spider create service context error"));
+    stored_error_num = set_error(res, errhp, 0, NULL, NULL);
+    bg_disconnect();
+    goto error;
+  }
+  DBUG_PRINT("info",("spider OCI init svchp=%p", svchp));
+
+  res = OCIAttrSet(svchp, OCI_HTYPE_SVCCTX, srvhp, 0, OCI_ATTR_SERVER, errhp);
+  if (res != OCI_SUCCESS)
+  {
+    DBUG_PRINT("info",("spider set server attr error"));
+    stored_error_num = set_error(res, errhp, 0, NULL, NULL);
+    bg_disconnect();
+    goto error;
+  }
+
+  res = OCIHandleAlloc(envhp, (dvoid **) &usrhp, OCI_HTYPE_SESSION, 0, 0);
+  if (res != OCI_SUCCESS)
+  {
+    DBUG_PRINT("info",("spider create session handler error"));
+    stored_error_num = set_error(res, errhp, 0, NULL, NULL);
+    bg_disconnect();
+    goto error;
+  }
+  DBUG_PRINT("info",("spider OCI init usrhp=%p", usrhp));
+
+  res = OCIAttrSet(usrhp, OCI_HTYPE_SESSION,
+    tgt_username, strlen(tgt_username), OCI_ATTR_USERNAME, errhp);
+  if (res != OCI_SUCCESS)
+  {
+    DBUG_PRINT("info",("spider set username attr error"));
+    stored_error_num = set_error(res, errhp, 0, NULL, NULL);
+    bg_disconnect();
+    goto error;
+  }
+
+  res = OCIAttrSet(usrhp, OCI_HTYPE_SESSION,
+    tgt_password, strlen(tgt_password), OCI_ATTR_PASSWORD, errhp);
+  if (res != OCI_SUCCESS)
+  {
+    DBUG_PRINT("info",("spider set password attr error"));
+    stored_error_num = set_error(res, errhp, 0, NULL, NULL);
+    bg_disconnect();
+    goto error;
+  }
+
+  res = OCISessionBegin(svchp, errhp, usrhp, OCI_CRED_RDBMS, OCI_DEFAULT);
+  if (res != OCI_SUCCESS)
+  {
+    DBUG_PRINT("info",("spider session begin error"));
+    stored_error_num = set_error(res, errhp, 0, NULL, NULL);
+    bg_disconnect();
+    goto error;
+  }
+  DBUG_PRINT("info",("spider OCISessionBegin"));
+
+  // set the session in the context handle
+  res = OCIAttrSet(svchp, OCI_HTYPE_SVCCTX, usrhp, 0, OCI_ATTR_SESSION, errhp);
+  if (res != OCI_SUCCESS)
+  {
+    DBUG_PRINT("info",("spider set session attr error"));
+    stored_error_num = set_error(res, errhp, 0, NULL, NULL);
+    bg_disconnect();
+    goto error;
+  }
+
+  if (
+    (stored_error_num = exec_query(SPIDER_SQL_SET_NLS_DATE_FORMAT_STR,
+      SPIDER_SQL_SET_NLS_DATE_FORMAT_LEN, -1)) ||
+    (stored_error_num = exec_query(SPIDER_SQL_SET_NLS_TIME_FORMAT_STR,
+      SPIDER_SQL_SET_NLS_TIME_FORMAT_LEN, -1)) ||
+    (stored_error_num = exec_query(SPIDER_SQL_SET_NLS_TIMESTAMP_FORMAT_STR,
+      SPIDER_SQL_SET_NLS_TIMESTAMP_FORMAT_LEN, -1))
+  ) {
+    DBUG_PRINT("info",("spider init connection error"));
+    bg_disconnect();
+    goto error;
+  }
+  DBUG_VOID_RETURN;
+
+error:
+  strmov(stored_error_msg, spider_stmt_da_message(current_thd));
+  current_thd->clear_error();
+  DBUG_VOID_RETURN;
+}
+
+int spider_db_oracle::connect(
+  char *tgt_host,
+  char *tgt_username,
+  char *tgt_password,
+  long tgt_port,
+  char *tgt_socket,
+  char *server_name,
+  int connect_retry_count,
+  longlong connect_retry_interval
+) {
+  int error_num;
+  DBUG_ENTER("spider_db_oracle::connect");
+  DBUG_PRINT("info",("spider this=%p", this));
+  this->tgt_host = tgt_host;
+  this->tgt_username = tgt_username;
+  this->tgt_password = tgt_password;
+  this->tgt_port = tgt_port;
+  this->tgt_socket = tgt_socket;
+  this->server_name = server_name;
+  this->connect_retry_count = connect_retry_count;
+  this->connect_retry_interval = connect_retry_interval;
+  if ((error_num = spider_create_conn_thread(conn)))
+    DBUG_RETURN(error_num);
+  spider_bg_conn_simple_action(conn, SPIDER_SIMPLE_CONNECT, TRUE, NULL,
+    0, NULL);
+
+  if (stored_error_num)
+  {
+    my_message(stored_error_num, stored_error_msg, MYF(0));
+    DBUG_RETURN(stored_error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle::ping(
+) {
+  sword res;
+  DBUG_ENTER("spider_db_oracle::ping");
+  DBUG_PRINT("info",("spider this=%p", this));
+  res = OCIPing(svchp, errhp, OCI_DEFAULT);
+  if (res != OCI_SUCCESS)
+  {
+    DBUG_PRINT("info",("spider ping error %d", res));
+    DBUG_RETURN(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM);
+  }
+  DBUG_RETURN(0);
+}
+
+void spider_db_oracle::bg_disconnect()
+{
+  DBUG_ENTER("spider_db_oracle::bg_disconnect");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (result)
+  {
+    delete result;
+    result = NULL;
+  }
+  if (txnhp)
+  {
+    DBUG_PRINT("info",("spider OCI free txnhp=%p", txnhp));
+    OCIHandleFree(txnhp, OCI_HTYPE_TRANS);
+    txnhp = NULL;
+  }
+  if (stmtp)
+  {
+    DBUG_PRINT("info",("spider OCI free stmtp=%p", stmtp));
+    OCIHandleFree(stmtp, OCI_HTYPE_STMT);
+    stmtp = NULL;
+  }
+  if (svchp && errhp && usrhp)
+  {
+    DBUG_PRINT("info",("spider OCISessionEnd"));
+    OCISessionEnd(svchp, errhp, usrhp, OCI_DEFAULT);
+  }
+  if (usrhp)
+  {
+    DBUG_PRINT("info",("spider OCI free usrhp=%p", usrhp));
+    OCIHandleFree(usrhp, OCI_HTYPE_SESSION);
+    usrhp = NULL;
+  }
+  if (svchp)
+  {
+    DBUG_PRINT("info",("spider OCI free svchp=%p", svchp));
+    OCIHandleFree(svchp, OCI_HTYPE_SVCCTX);
+    svchp = NULL;
+  }
+  if (srvhp)
+  {
+    DBUG_PRINT("info",("spider OCI free srvhp=%p", srvhp));
+    OCIServerDetach(srvhp, errhp, OCI_DEFAULT);
+    OCIHandleFree(srvhp, OCI_HTYPE_SERVER);
+    srvhp = NULL;
+  }
+  if (errhp)
+  {
+    DBUG_PRINT("info",("spider OCI free errhp=%p", errhp));
+    OCIHandleFree(errhp, OCI_HTYPE_ERROR);
+    errhp = NULL;
+  }
+  if (envhp)
+  {
+    DBUG_PRINT("info",("spider OCI free envhp=%p", envhp));
+    OCIHandleFree(envhp, OCI_HTYPE_ENV);
+    envhp = NULL;
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_db_oracle::disconnect()
+{
+  DBUG_ENTER("spider_db_oracle::disconnect");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!conn->bg_init)
+    DBUG_VOID_RETURN;
+  spider_bg_conn_simple_action(conn, SPIDER_SIMPLE_DISCONNECT, TRUE, NULL,
+    0, NULL);
+  DBUG_VOID_RETURN;
+}
+
+int spider_db_oracle::set_net_timeout()
+{
+  DBUG_ENTER("spider_db_oracle::set_net_timeout");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* TODO: develop later */
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle::exec_query(
+  const char *query,
+  uint length,
+  int quick_mode
+) {
+  sword res;
+  int error_num;
+  DBUG_ENTER("spider_db_oracle::exec_query");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (spider_param_general_log())
+  {
+    const char *tgt_str = conn->tgt_host;
+    uint32 tgt_len = conn->tgt_host_length;
+    spider_string tmp_query_str(length + conn->tgt_wrapper_length +
+      tgt_len + (SPIDER_SQL_SPACE_LEN * 2));
+    tmp_query_str.init_calc_mem(232);
+    tmp_query_str.length(0);
+    tmp_query_str.q_append(conn->tgt_wrapper, conn->tgt_wrapper_length);
+    tmp_query_str.q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+    tmp_query_str.q_append(tgt_str, tgt_len);
+    tmp_query_str.q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+    tmp_query_str.q_append(query, length);
+    general_log_write(current_thd, COM_QUERY, tmp_query_str.ptr(),
+      tmp_query_str.length());
+  }
+  stored_error_num = 0;
+  if (table_lock_mode && !conn->in_before_query)
+  {
+    DBUG_PRINT("info",("spider table_lock_mode=%d", table_lock_mode));
+    table_lock_mode = 0;
+    if ((error_num = exec_query(exec_lock_sql->ptr(), exec_lock_sql->length(),
+      -1))) {
+      DBUG_RETURN(error_num);
+    }
+  }
+
+  if (length)
+  {
+    if (result)
+    {
+      delete result;
+      result = NULL;
+    }
+
+    if (!stmtp)
+    {
+      DBUG_PRINT("info",("spider create stmt"));
+      res = OCIHandleAlloc(envhp, (dvoid **) &stmtp, OCI_HTYPE_STMT, 0, 0);
+      if (res != OCI_SUCCESS)
+      {
+        DBUG_PRINT("info",("spider create stmt handler error"));
+        DBUG_RETURN(set_error(res, errhp, 0, NULL, NULL));
+      }
+    }
+
+    res = OCIStmtPrepare(stmtp, errhp, (OraText *) query, length,
+      OCI_NTV_SYNTAX, OCI_DEFAULT);
+    if (res != OCI_SUCCESS)
+    {
+      DBUG_PRINT("info",("spider stmt prepare error"));
+      DBUG_RETURN(set_error(res, errhp, 0, NULL, NULL));
+    }
+
+/*
+    if ((result = new spider_db_oracle_result()))
+    {
+      result->db_conn = this;
+      result->stmtp = stmtp;
+      stmtp = NULL;
+      result->field_count = result->num_fields();
+      result->row.field_count = result->field_count;
+      result->row.db_conn = this;
+      result->row.result = result;
+      if ((error_num = result->row.init()))
+      {
+        delete result;
+        result = NULL;
+        DBUG_RETURN(error_num);
+      }
+    } else {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+*/
+
+    /* select statement check */
+    ub4 iters;
+    if (
+      !strncasecmp(query, "select ", sizeof("select ") - 1) ||
+      !strncasecmp(query, "(select ", sizeof("(select ") - 1)
+    ) {
+      iters = 0;
+    } else {
+      iters = 1;
+    }
+
+    if (quick_mode)
+    {
+      DBUG_PRINT("info",("spider use OCI_DEFAULT"));
+      res = OCIStmtExecute(svchp, stmtp, errhp, iters, 0, NULL, NULL,
+        OCI_DEFAULT);
+    } else {
+      DBUG_PRINT("info",("spider use OCI_STMT_SCROLLABLE_READONLY"));
+      res = OCIStmtExecute(svchp, stmtp, errhp, iters, 0, NULL, NULL,
+        OCI_STMT_SCROLLABLE_READONLY);
+/*
+      if (res == OCI_SUCCESS)
+      {
+        DBUG_PRINT("info",("spider fetch last for row count"));
+        res = OCIStmtFetch2(result->stmtp, errhp, 1, OCI_FETCH_LAST, 0,
+          OCI_DEFAULT);
+      }
+      if (res == OCI_SUCCESS)
+      {
+        DBUG_PRINT("info",("spider fetch first for row count"));
+        res = OCIStmtFetch2(result->stmtp, errhp, 1, OCI_FETCH_FIRST, 0,
+          OCI_DEFAULT);
+      }
+*/
+    }
+    if (res == OCI_SUCCESS && iters)
+    {
+      DBUG_PRINT("info",("spider get row count"));
+      ub4 row_count;
+      res = OCIAttrGet(stmtp, OCI_HTYPE_STMT, &row_count, 0,
+        OCI_ATTR_ROW_COUNT, errhp);
+      update_rows = (uint) row_count;
+      DBUG_PRINT("info",("spider row_count=%u", update_rows));
+    }
+    if (res != OCI_SUCCESS)
+    {
+      DBUG_PRINT("info",("spider stmt execute error"));
+      error_num = set_error(res, errhp, 0, NULL, NULL);
+      if (error_num == HA_ERR_END_OF_FILE)
+        DBUG_RETURN(0);
+      DBUG_RETURN(error_num);
+    }
+
+    if ((result = new spider_db_oracle_result(this)))
+    {
+      result->db_conn = this;
+      result->stmtp = stmtp;
+      stmtp = NULL;
+      result->field_count = result->num_fields();
+      result->row.field_count = result->field_count;
+      result->row.db_conn = this;
+      result->row.result = result;
+      result->row.access_charset = conn->access_charset;
+      result->access_charset = conn->access_charset;
+      if (
+        (error_num = result->row.init()) ||
+        (error_num = result->set_column_info())
+      ) {
+        delete result;
+        result = NULL;
+        DBUG_RETURN(error_num);
+      }
+      result->row.define();
+    } else {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+
+    if (!quick_mode && !iters)
+    {
+      if (res == OCI_SUCCESS)
+      {
+        DBUG_PRINT("info",("spider fetch last for row count"));
+        res = OCIStmtFetch2(result->stmtp, errhp, 1, OCI_FETCH_LAST, 0,
+          OCI_DEFAULT);
+      }
+      if (res == OCI_SUCCESS)
+      {
+        DBUG_PRINT("info",("spider fetch first for row count"));
+        res = OCIStmtFetch2(result->stmtp, errhp, 1, OCI_FETCH_FIRST, 0,
+          OCI_DEFAULT);
+      }
+      if (res != OCI_SUCCESS)
+      {
+        DBUG_PRINT("info",("spider stmt execute error"));
+        error_num = set_error(res, errhp, 0, NULL, NULL);
+        if (error_num == HA_ERR_END_OF_FILE)
+          DBUG_RETURN(0);
+        DBUG_RETURN(error_num);
+      }
+      result->fetched = TRUE;
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle::get_errno()
+{
+  DBUG_ENTER("spider_db_oracle::get_errno");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider stored_error=%d", stored_error_num));
+  DBUG_RETURN(stored_error_num);
+}
+
+const char *spider_db_oracle::get_error()
+{
+  DBUG_ENTER("spider_db_oracle::get_error");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider error=%s", stored_error));
+  DBUG_RETURN(stored_error);
+}
+
+bool spider_db_oracle::is_server_gone_error(
+  int error_num
+) {
+  DBUG_ENTER("spider_db_oracle::is_server_gone_error");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* TODO: develop later */
+  DBUG_RETURN(FALSE);
+}
+
+bool spider_db_oracle::is_dup_entry_error(
+  int error_num
+) {
+  DBUG_ENTER("spider_db_oracle::is_dup_entry_error");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (error_num == HA_ERR_FOUND_DUPP_KEY)
+    DBUG_RETURN(TRUE);
+  DBUG_RETURN(FALSE);
+}
+
+bool spider_db_oracle::is_xa_nota_error(
+  int error_num
+) {
+  DBUG_ENTER("spider_db_oracle::is_xa_nota_error");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* TODO: develop later */
+  DBUG_RETURN(FALSE);
+}
+
+spider_db_result *spider_db_oracle::store_result(
+  spider_db_result_buffer **spider_res_buf,
+  st_spider_db_request_key *request_key,
+  int *error_num
+) {
+  spider_db_oracle_result *tmp_result = result;
+  DBUG_ENTER("spider_db_oracle::store_result");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(!spider_res_buf);
+  if (stored_error_num == HA_ERR_END_OF_FILE)
+  {
+    *error_num = HA_ERR_END_OF_FILE;
+    DBUG_RETURN(NULL);
+  }
+
+  *error_num = 0;
+  result = NULL;
+  DBUG_RETURN(tmp_result);
+}
+
+spider_db_result *spider_db_oracle::use_result(
+  ha_spider *spider,
+  st_spider_db_request_key *request_key,
+  int *error_num
+) {
+  spider_db_oracle_result *tmp_result = result;
+  DBUG_ENTER("spider_db_oracle::use_result");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (stored_error_num == HA_ERR_END_OF_FILE)
+  {
+    *error_num = HA_ERR_END_OF_FILE;
+    DBUG_RETURN(NULL);
+  }
+
+  *error_num = 0;
+  result = NULL;
+  DBUG_RETURN(tmp_result);
+}
+
+int spider_db_oracle::next_result()
+{
+  DBUG_ENTER("spider_db_oracle::next_result");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* TODO: develop later */
+  DBUG_RETURN(-1);
+}
+
+uint spider_db_oracle::affected_rows()
+{
+  DBUG_ENTER("spider_db_oracle::affected_rows");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(update_rows);
+}
+
+uint spider_db_oracle::matched_rows()
+{
+  DBUG_ENTER("spider_db_oracle::matched_rows");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(0);
+}
+
+bool spider_db_oracle::inserted_info(
+  spider_db_handler *handler,
+  ha_copy_info *copy_info
+) {
+  DBUG_ENTER("spider_db_oracle::inserted_info");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(FALSE);
+}
+
+ulonglong spider_db_oracle::last_insert_id()
+{
+  DBUG_ENTER("spider_db_oracle::last_insert_id");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(stored_last_insert_id);
+}
+
+int spider_db_oracle::set_character_set(
+  const char *csname
+) {
+  DBUG_ENTER("spider_db_oracle::set_character_set");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* TODO: develop later */
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle::select_db(
+  const char *dbname
+) {
+  DBUG_ENTER("spider_db_oracle::select_db");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do for oracle */
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle::consistent_snapshot(
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_oracle::consistent_snapshot");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do for oracle */
+  DBUG_RETURN(0);
+}
+
+bool spider_db_oracle::trx_start_in_bulk_sql()
+{
+  DBUG_ENTER("spider_db_oracle::trx_start_in_bulk_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(FALSE);
+}
+
+int spider_db_oracle::start_transaction(
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_oracle::start_transaction");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (conn->in_before_query)
+  {
+    if (conn->queued_semi_trx_isolation)
+    {
+      if (conn->queued_semi_trx_isolation_val != conn->trx_isolation)
+      {
+        /* nothing to do */
+        DBUG_RETURN(0);
+      }
+    } else if (conn->queued_trx_isolation)
+    {
+      if (conn->queued_trx_isolation_val != conn->trx_isolation)
+      {
+        /* nothing to do */
+        DBUG_RETURN(0);
+      }
+    }
+    DBUG_RETURN(set_trx_isolation(conn->trx_isolation, need_mon));
+  }
+  pthread_mutex_assert_owner(&conn->mta_conn_mutex);
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  if (spider_db_query(
+    conn,
+    SPIDER_SQL_START_TRANSACTION_STR,
+    SPIDER_SQL_START_TRANSACTION_LEN,
+    -1,
+    need_mon)
+  ) {
+    DBUG_RETURN(spider_db_errorno(conn));
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle::commit(
+  int *need_mon
+) {
+  sword res;
+  DBUG_ENTER("spider_db_oracle::commit");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (conn->table_locked)
+  {
+    conn->table_locked = FALSE;
+    spider_current_trx->locked_connections--;
+  }
+  res = OCITransCommit(svchp, errhp, OCI_DEFAULT);
+  if (res != OCI_SUCCESS)
+  {
+    *need_mon = set_error(res, errhp, 0, NULL, NULL);
+    DBUG_RETURN(*need_mon);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle::rollback(
+  int *need_mon
+) {
+  sword res;
+  DBUG_ENTER("spider_db_oracle::rollback");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (conn->table_locked)
+  {
+    conn->table_locked = FALSE;
+    spider_current_trx->locked_connections--;
+  }
+  if (svchp && errhp)
+  {
+    res = OCITransRollback(svchp, errhp, OCI_DEFAULT);
+    if (res != OCI_SUCCESS)
+    {
+      *need_mon = set_error(res, errhp, 0, NULL, NULL);
+      DBUG_RETURN(*need_mon);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+bool spider_db_oracle::xa_start_in_bulk_sql()
+{
+  DBUG_ENTER("spider_db_oracle::xa_start_in_bulk_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(FALSE);
+}
+
+int spider_db_oracle::xa_start(
+  XID *xid,
+  int *need_mon
+) {
+  sword res;
+  DBUG_ENTER("spider_db_oracle::xa_start");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (txnhp)
+  {
+    OCIHandleFree(txnhp, OCI_HTYPE_TRANS);
+    txnhp = NULL;
+  }
+  OCIHandleAlloc((dvoid *)envhp, (dvoid **)&txnhp, OCI_HTYPE_TRANS, 0, 0);
+  OCIAttrSet((dvoid *)svchp, OCI_HTYPE_SVCCTX, (dvoid *)txnhp, 0,
+    OCI_ATTR_TRANS, errhp);
+  OCIAttrSet((dvoid *)txnhp, OCI_HTYPE_TRANS, (dvoid *)xid, sizeof(XID),
+    OCI_ATTR_XID, errhp);
+
+  res = OCITransStart(svchp, errhp, 31622400, OCI_TRANS_NEW);
+  if (res != OCI_SUCCESS)
+  {
+    *need_mon = set_error(res, errhp, 0, NULL, NULL);
+    DBUG_RETURN(*need_mon);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle::xa_end(
+  XID *xid,
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_oracle::xa_end");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do for oracle */
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle::xa_prepare(
+  XID *xid,
+  int *need_mon
+) {
+  sword res;
+  DBUG_ENTER("spider_db_oracle::xa_prepare");
+  DBUG_PRINT("info",("spider this=%p", this));
+  res = OCITransPrepare(svchp, errhp, OCI_DEFAULT);
+  if (res != OCI_SUCCESS)
+  {
+    *need_mon = set_error(res, errhp, 0, NULL, NULL);
+    DBUG_RETURN(*need_mon);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle::xa_commit(
+  XID *xid,
+  int *need_mon
+) {
+  sword res;
+  DBUG_ENTER("spider_db_oracle::xa_commit");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (conn->table_locked)
+  {
+    conn->table_locked = FALSE;
+    spider_current_trx->locked_connections--;
+  }
+  res = OCITransCommit(svchp, errhp, OCI_TRANS_TWOPHASE);
+  if (res != OCI_SUCCESS)
+  {
+    *need_mon = set_error(res, errhp, 0, NULL, NULL);
+    if (txnhp)
+    {
+      OCIHandleFree(txnhp, OCI_HTYPE_TRANS);
+      txnhp = NULL;
+    }
+    DBUG_RETURN(*need_mon);
+  }
+  if (txnhp)
+  {
+    OCIHandleFree(txnhp, OCI_HTYPE_TRANS);
+    txnhp = NULL;
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle::xa_rollback(
+  XID *xid,
+  int *need_mon
+) {
+  sword res;
+  DBUG_ENTER("spider_db_oracle::xa_rollback");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (svchp && errhp)
+  {
+    res = OCITransRollback(svchp, errhp, OCI_DEFAULT);
+    if (res != OCI_SUCCESS)
+    {
+      *need_mon = set_error(res, errhp, 0, NULL, NULL);
+      if (txnhp)
+      {
+        OCIHandleFree(txnhp, OCI_HTYPE_TRANS);
+        txnhp = NULL;
+      }
+      DBUG_RETURN(*need_mon);
+    }
+  }
+  if (txnhp)
+  {
+    OCIHandleFree(txnhp, OCI_HTYPE_TRANS);
+    txnhp = NULL;
+  }
+  DBUG_RETURN(0);
+}
+
+bool spider_db_oracle::set_trx_isolation_in_bulk_sql()
+{
+  DBUG_ENTER("spider_db_oracle::set_trx_isolation_in_bulk_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(FALSE);
+}
+
+int spider_db_oracle::set_trx_isolation(
+  int trx_isolation,
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_oracle::set_trx_isolation");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (trx_isolation)
+  {
+    case ISO_READ_UNCOMMITTED:
+    case ISO_READ_COMMITTED:
+      if (conn->in_before_query)
+      {
+        DBUG_RETURN(exec_query(SPIDER_SQL_ISO_READ_COMMITTED_STR,
+          SPIDER_SQL_ISO_READ_COMMITTED_LEN, -1));
+      }
+      pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+      pthread_mutex_lock(&conn->mta_conn_mutex);
+      SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      conn->need_mon = need_mon;
+      DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = TRUE;
+      conn->mta_conn_mutex_unlock_later = TRUE;
+      if (spider_db_query(
+        conn,
+        SPIDER_SQL_ISO_READ_COMMITTED_STR,
+        SPIDER_SQL_ISO_READ_COMMITTED_LEN,
+        -1,
+        need_mon)
+      ) {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        DBUG_RETURN(spider_db_errorno(conn));
+      }
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      break;
+    case ISO_REPEATABLE_READ:
+    case ISO_SERIALIZABLE:
+      if (conn->in_before_query)
+      {
+        DBUG_RETURN(exec_query(SPIDER_SQL_ISO_SERIALIZABLE_STR,
+          SPIDER_SQL_ISO_SERIALIZABLE_LEN, -1));
+      }
+      pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+      pthread_mutex_lock(&conn->mta_conn_mutex);
+      SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      conn->need_mon = need_mon;
+      DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = TRUE;
+      conn->mta_conn_mutex_unlock_later = TRUE;
+      if (spider_db_query(
+        conn,
+        SPIDER_SQL_ISO_SERIALIZABLE_STR,
+        SPIDER_SQL_ISO_SERIALIZABLE_LEN,
+        -1,
+        need_mon)
+      ) {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        DBUG_RETURN(spider_db_errorno(conn));
+      }
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      break;
+    default:
+      DBUG_RETURN(HA_ERR_UNSUPPORTED);
+  }
+  DBUG_RETURN(0);
+}
+
+bool spider_db_oracle::set_autocommit_in_bulk_sql()
+{
+  DBUG_ENTER("spider_db_oracle::set_autocommit_in_bulk_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(FALSE);
+}
+
+int spider_db_oracle::set_autocommit(
+  bool autocommit,
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_oracle::set_autocommit");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (autocommit)
+  {
+    if (conn->in_before_query)
+    {
+      DBUG_RETURN(exec_query(SPIDER_SQL_AUTOCOMMIT_ON_STR,
+        SPIDER_SQL_AUTOCOMMIT_ON_LEN, -1));
+    }
+    pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+    pthread_mutex_lock(&conn->mta_conn_mutex);
+    SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    conn->need_mon = need_mon;
+    DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = TRUE;
+    conn->mta_conn_mutex_unlock_later = TRUE;
+    if (spider_db_query(
+      conn,
+      SPIDER_SQL_AUTOCOMMIT_ON_STR,
+      SPIDER_SQL_AUTOCOMMIT_ON_LEN,
+      -1,
+      need_mon)
+    ) {
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      DBUG_RETURN(spider_db_errorno(conn));
+    }
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+  } else {
+    if (conn->in_before_query)
+    {
+      DBUG_RETURN(exec_query(SPIDER_SQL_AUTOCOMMIT_OFF_STR,
+        SPIDER_SQL_AUTOCOMMIT_OFF_LEN, -1));
+    }
+    pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+    pthread_mutex_lock(&conn->mta_conn_mutex);
+    SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    conn->need_mon = need_mon;
+    DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = TRUE;
+    conn->mta_conn_mutex_unlock_later = TRUE;
+    if (spider_db_query(
+      conn,
+      SPIDER_SQL_AUTOCOMMIT_OFF_STR,
+      SPIDER_SQL_AUTOCOMMIT_OFF_LEN,
+      -1,
+      need_mon)
+    ) {
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      DBUG_RETURN(spider_db_errorno(conn));
+    }
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+  }
+  DBUG_RETURN(0);
+}
+
+bool spider_db_oracle::set_sql_log_off_in_bulk_sql()
+{
+  DBUG_ENTER("spider_db_oracle::set_sql_log_off_in_bulk_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(FALSE);
+}
+
+int spider_db_oracle::set_sql_log_off(
+  bool sql_log_off,
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_oracle::set_sql_log_off");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+bool spider_db_oracle::set_wait_timeout_in_bulk_sql()
+{
+  DBUG_ENTER("spider_db_oracle::set_wait_timeout_in_bulk_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(FALSE);
+}
+
+int spider_db_oracle::set_wait_timeout(
+  int wait_timeout,
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_oracle::set_wait_timeout");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+bool spider_db_oracle::set_sql_mode_in_bulk_sql()
+{
+  DBUG_ENTER("spider_db_oracle::set_sql_mode_in_bulk_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(FALSE);
+}
+
+int spider_db_oracle::set_sql_mode(
+  sql_mode_t sql_mode,
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_oracle::set_sql_mode");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+bool spider_db_oracle::set_time_zone_in_bulk_sql()
+{
+  DBUG_ENTER("spider_db_oracle::set_time_zone_in_bulk_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(FALSE);
+}
+
+int spider_db_oracle::set_time_zone(
+  Time_zone *time_zone,
+  int *need_mon
+) {
+  DBUG_ENTER("spider_db_oracle::set_time_zone");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle::show_master_status(
+  SPIDER_TRX *trx,
+  SPIDER_SHARE *share,
+  int all_link_idx,
+  int *need_mon,
+  TABLE *table,
+  spider_string *str,
+  int mode,
+  SPIDER_DB_RESULT **res1,
+  SPIDER_DB_RESULT **res2
+) {
+  DBUG_ENTER("spider_db_oracle::show_master_status");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(0);
+}
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+int spider_db_oracle::append_sql(
+  char *sql,
+  ulong sql_length,
+  st_spider_db_request_key *request_key
+) {
+  DBUG_ENTER("spider_db_oracle::append_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle::append_open_handler(
+  uint handler_id,
+  const char *db_name,
+  const char *table_name,
+  const char *index_name,
+  const char *sql,
+  st_spider_db_request_key *request_key
+) {
+  DBUG_ENTER("spider_db_oracle::append_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle::append_select(
+  uint handler_id,
+  spider_string *sql,
+  SPIDER_DB_HS_STRING_REF_BUFFER *keys,
+  int limit,
+  int skip,
+  st_spider_db_request_key *request_key
+) {
+  DBUG_ENTER("spider_db_oracle::append_select");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle::append_insert(
+  uint handler_id,
+  SPIDER_DB_HS_STRING_REF_BUFFER *upds,
+  st_spider_db_request_key *request_key
+) {
+  DBUG_ENTER("spider_db_oracle::append_insert");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle::append_update(
+  uint handler_id,
+  spider_string *sql,
+  SPIDER_DB_HS_STRING_REF_BUFFER *keys,
+  SPIDER_DB_HS_STRING_REF_BUFFER *upds,
+  int limit,
+  int skip,
+  bool increment,
+  bool decrement,
+  st_spider_db_request_key *request_key
+) {
+  DBUG_ENTER("spider_db_oracle::append_update");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle::append_delete(
+  uint handler_id,
+  spider_string *sql,
+  SPIDER_DB_HS_STRING_REF_BUFFER *keys,
+  int limit,
+  int skip,
+  st_spider_db_request_key *request_key
+) {
+  DBUG_ENTER("spider_db_oracle::append_delete");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+void spider_db_oracle::reset_request_queue()
+{
+  DBUG_ENTER("spider_db_oracle::reset_request_queue");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_VOID_RETURN;
+}
+#endif
+
+size_t spider_db_oracle::escape_string(
+  char *to,
+  const char *from,
+  size_t from_length
+) {
+  DBUG_ENTER("spider_db_oracle::escape_string");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(util.escape_string(to, from, from_length, conn->access_charset));
+}
+
+bool spider_db_oracle::have_lock_table_list()
+{
+  DBUG_ENTER("spider_db_oracle::have_lock_table_list");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(lock_table_hash.records);
+}
+
+int spider_db_oracle::append_lock_tables(
+  spider_string *str
+) {
+  int error_num;
+  ha_spider *tmp_spider;
+  int lock_type;
+  uint conn_link_idx;
+  int tmp_link_idx;
+  SPIDER_LINK_FOR_HASH *tmp_link_for_hash;
+  const char *db_name;
+  uint db_name_length;
+  CHARSET_INFO *db_name_charset;
+  const char *table_name;
+  uint table_name_length;
+  CHARSET_INFO *table_name_charset;
+  DBUG_ENTER("spider_db_oracle::lock_tables");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if ((tmp_link_for_hash =
+    (SPIDER_LINK_FOR_HASH *) my_hash_element(&lock_table_hash, 0)))
+  {
+    if ((error_num = spider_db_oracle_utility.append_lock_table_head(str)))
+    {
+      DBUG_RETURN(error_num);
+    }
+
+    tmp_spider = tmp_link_for_hash->spider;
+    tmp_link_idx = tmp_link_for_hash->link_idx;
+    switch (tmp_spider->wide_handler->lock_type)
+    {
+      case TL_READ:
+        lock_type = SPIDER_DB_TABLE_LOCK_READ_LOCAL;
+        break;
+      case TL_READ_NO_INSERT:
+        lock_type = SPIDER_DB_TABLE_LOCK_READ;
+        break;
+      case TL_WRITE_LOW_PRIORITY:
+        lock_type = SPIDER_DB_TABLE_LOCK_LOW_PRIORITY_WRITE;
+        break;
+      case TL_WRITE:
+        lock_type = SPIDER_DB_TABLE_LOCK_WRITE;
+        break;
+      default:
+        // no lock
+        DBUG_PRINT("info",("spider lock_type=%d",
+          tmp_spider->wide_handler->lock_type));
+        DBUG_RETURN(0);
+    }
+    conn_link_idx = tmp_spider->conn_link_idx[tmp_link_idx];
+    spider_oracle_share *db_share = (spider_oracle_share *)
+      tmp_spider->share->dbton_share[conn->dbton_id];
+    if (&db_share->db_names_str[conn_link_idx])
+    {
+      db_name = db_share->db_names_str[conn_link_idx].ptr();
+      db_name_length = db_share->db_names_str[conn_link_idx].length();
+      db_name_charset = tmp_spider->share->access_charset;
+    } else {
+      db_name = tmp_spider->share->tgt_dbs[conn_link_idx];
+      db_name_length = tmp_spider->share->tgt_dbs_lengths[conn_link_idx];
+      db_name_charset = system_charset_info;
+    }
+    if (&db_share->table_names_str[conn_link_idx])
+    {
+      table_name = db_share->table_names_str[conn_link_idx].ptr();
+      table_name_length = db_share->table_names_str[conn_link_idx].length();
+      table_name_charset = tmp_spider->share->access_charset;
+    } else {
+      table_name = tmp_spider->share->tgt_table_names[conn_link_idx];
+      table_name_length =
+        tmp_spider->share->tgt_table_names_lengths[conn_link_idx];
+      table_name_charset = system_charset_info;
+    }
+    if ((error_num = spider_db_oracle_utility.
+      append_lock_table_body(
+        str,
+        db_name,
+        db_name_length,
+        db_name_charset,
+        table_name,
+        table_name_length,
+        table_name_charset,
+        lock_type
+      )
+    )) {
+      my_hash_reset(&lock_table_hash);
+      DBUG_RETURN(error_num);
+    }
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+    my_hash_delete_with_hash_value(&lock_table_hash,
+      tmp_link_for_hash->db_table_str_hash_value, (uchar*) tmp_link_for_hash);
+#else
+    my_hash_delete(&lock_table_hash, (uchar*) tmp_link_for_hash);
+#endif
+
+    if ((error_num = spider_db_oracle_utility.append_lock_table_tail(str)))
+    {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle::append_unlock_tables(
+  spider_string *str
+) {
+  int error_num;
+  DBUG_ENTER("spider_db_oracle::append_unlock_tables");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if ((error_num = spider_db_oracle_utility.append_unlock_table(str)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+uint spider_db_oracle::get_lock_table_hash_count()
+{
+  DBUG_ENTER("spider_db_oracle::get_lock_table_hash_count");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(lock_table_hash.records);
+}
+
+void spider_db_oracle::reset_lock_table_hash()
+{
+  DBUG_ENTER("spider_db_oracle::reset_lock_table_hash");
+  DBUG_PRINT("info",("spider this=%p", this));
+  my_hash_reset(&lock_table_hash);
+  DBUG_VOID_RETURN;
+}
+
+uint spider_db_oracle::get_opened_handler_count()
+{
+  DBUG_ENTER("spider_db_oracle::get_opened_handler_count");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(handler_open_array.elements);
+}
+
+void spider_db_oracle::reset_opened_handler()
+{
+  ha_spider *tmp_spider;
+  int tmp_link_idx;
+  SPIDER_LINK_FOR_HASH **tmp_link_for_hash;
+  DBUG_ENTER("spider_db_oracle::reset_opened_handler");
+  DBUG_PRINT("info",("spider this=%p", this));
+  while ((tmp_link_for_hash =
+    (SPIDER_LINK_FOR_HASH **) pop_dynamic(&handler_open_array)))
+  {
+    tmp_spider = (*tmp_link_for_hash)->spider;
+    tmp_link_idx = (*tmp_link_for_hash)->link_idx;
+    tmp_spider->clear_handler_opened(tmp_link_idx, conn->conn_kind);
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_db_oracle::set_dup_key_idx(
+  ha_spider *spider,
+  int link_idx
+) {
+  TABLE *table = spider->get_table();
+  uint roop_count, pk_idx = table->s->primary_key;
+  int key_name_length;
+  int max_length = 0;
+  char *key_name, *tmp_pos;
+  char buf[SPIDER_ORACLE_ERR_BUF_LEN];
+  DBUG_ENTER("spider_db_oracle::set_dup_key_idx");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider error_str=%s", stored_error_msg));
+  memcpy(buf, spider->share->tgt_dbs[link_idx],
+    spider->share->tgt_dbs_lengths[link_idx]);
+  tmp_pos = buf + spider->share->tgt_dbs_lengths[link_idx];
+  *tmp_pos = '.';
+  ++tmp_pos;
+  for (roop_count = 0; roop_count < table->s->keys; roop_count++)
+  {
+    if (roop_count == pk_idx)
+    {
+      DBUG_PRINT("info",("spider pk_idx=%u", roop_count));
+      int all_link_idx = spider->conn_link_idx[link_idx];
+      key_name = spider->share->tgt_pk_names[all_link_idx];
+      key_name_length = spider->share->tgt_pk_names_lengths[all_link_idx];
+    } else {
+#ifdef SPIDER_use_LEX_CSTRING_for_KEY_Field_name
+      key_name = (char *) table->s->key_info[roop_count].name.str;
+      key_name_length = table->s->key_info[roop_count].name.length;
+#else
+      key_name = table->s->key_info[roop_count].name;
+      key_name_length = strlen(key_name);
+#endif
+    }
+    memcpy(tmp_pos, key_name, key_name_length + 1);
+    DBUG_PRINT("info",("spider key_name=%s", key_name));
+    DBUG_PRINT("info",("spider full key name=%s", buf));
+    if (
+      max_length < key_name_length &&
+      strcasestr(stored_error_msg, buf)
+    ) {
+      max_length = key_name_length;
+      spider->dup_key_idx = roop_count;
+    }
+  }
+  if (max_length == 0)
+    spider->dup_key_idx = (uint) -1;
+  DBUG_PRINT("info",("spider dup_key_idx=%d", spider->dup_key_idx));
+  DBUG_VOID_RETURN;
+}
+
+bool spider_db_oracle::cmp_request_key_to_snd(
+  st_spider_db_request_key *request_key
+) {
+  DBUG_ENTER("spider_db_oracle::cmp_request_key_to_snd");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(TRUE);
+}
+
+int spider_db_oracle::set_error(
+  sword res,
+  dvoid *hndlp,
+  int error_num,
+  const char *error1,
+  const char *error2
+) {
+  DBUG_ENTER("spider_db_oracle::set_error");
+  DBUG_PRINT("info",("spider this=%p", this));
+  stored_error_num =
+    spider_db_oracle_get_error(res, hndlp, error_num, error1, error2,
+      conn->access_charset, stored_error_msg);
+  if (stored_error_num)
+    stored_error = ER_SPIDER_ORACLE_ERR;
+  else
+    stored_error = "";
+  DBUG_RETURN(stored_error_num);
+}
+
+spider_db_oracle_util::spider_db_oracle_util() : spider_db_util()
+{
+  DBUG_ENTER("spider_db_oracle_util::spider_db_oracle_util");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_db_oracle_util::~spider_db_oracle_util()
+{
+  DBUG_ENTER("spider_db_oracle_util::~spider_db_oracle_util");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+int spider_db_oracle_util::append_name(
+  spider_string *str,
+  const char *name,
+  uint name_length
+) {
+  DBUG_ENTER("spider_db_oracle_util::append_name");
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  str->q_append(name, name_length);
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle_util::append_name_with_charset(
+  spider_string *str,
+  const char *name,
+  uint name_length,
+  CHARSET_INFO *name_charset
+) {
+  DBUG_ENTER("spider_db_oracle_util::append_name_with_charset");
+  if (str->reserve(SPIDER_SQL_NAME_QUOTE_LEN * 2 + name_length * 2))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  str->append(name, name_length, name_charset);
+  if (str->reserve(SPIDER_SQL_NAME_QUOTE_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle_util::append_escaped_name(
+  spider_string *str,
+  const char *name,
+  uint name_length
+) {
+  int error_num;
+  DBUG_ENTER("spider_db_oracle_util::append_name");
+  if (str->reserve(SPIDER_SQL_NAME_QUOTE_LEN * 2 + name_length * 2))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  if ((error_num = spider_db_append_name_with_quote_str_internal(
+    str, name, name_length, dbton_id)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  if (str->reserve(SPIDER_SQL_NAME_QUOTE_LEN))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle_util::append_escaped_name_with_charset(
+  spider_string *str,
+  const char *name,
+  uint name_length,
+  CHARSET_INFO *name_charset
+) {
+  int error_num;
+  DBUG_ENTER("spider_db_oracle_util::append_name_with_charset");
+  if (str->reserve(SPIDER_SQL_NAME_QUOTE_LEN * 2 + name_length * 2))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  if ((error_num = spider_db_append_name_with_quote_str_internal(
+    str, name, name_length, name_charset, dbton_id)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  if (str->reserve(SPIDER_SQL_NAME_QUOTE_LEN))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  DBUG_RETURN(0);
+}
+
+bool spider_db_oracle_util::is_name_quote(
+  const char head_code
+) {
+  DBUG_ENTER("spider_db_oracle_util::is_name_quote");
+  DBUG_RETURN(head_code == *name_quote_str);
+}
+
+int spider_db_oracle_util::append_escaped_name_quote(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_db_oracle_util::append_escaped_name_quote");
+  if (str->reserve(SPIDER_SQL_NAME_QUOTE_LEN * 2))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle_util::append_column_value(
+  ha_spider *spider,
+  spider_string *str,
+  Field *field,
+  const uchar *new_ptr,
+  CHARSET_INFO *access_charset
+) {
+  char buf[MAX_FIELD_WIDTH];
+  spider_string tmp_str(buf, MAX_FIELD_WIDTH, &my_charset_bin);
+  String *ptr;
+  uint length;
+  Time_zone *saved_time_zone = thd->variables.time_zone;
+  DBUG_ENTER("spider_db_oracle_util::append_column_value");
+  tmp_str.init_calc_mem(181);
+
+  thd->variables.time_zone = UTC;
+
+  if (new_ptr)
+  {
+    if (
+      field->type() == MYSQL_TYPE_BLOB ||
+      field->real_type() == MYSQL_TYPE_VARCHAR
+    ) {
+      length = uint2korr(new_ptr);
+      tmp_str.set_quick((char *) new_ptr + HA_KEY_BLOB_LENGTH, length,
+        &my_charset_bin);
+      ptr = tmp_str.get_str();
+    } else if (field->type() == MYSQL_TYPE_GEOMETRY)
+    {
+/*
+      uint mlength = SIZEOF_STORED_DOUBLE, lcnt;
+      uchar *dest = (uchar *) buf;
+      const uchar *source;
+      for (lcnt = 0; lcnt < 4; lcnt++)
+      {
+        mlength = SIZEOF_STORED_DOUBLE;
+        source = new_ptr + mlength + SIZEOF_STORED_DOUBLE * lcnt;
+        while (mlength--)
+          *dest++ = *--source;
+      }
+      tmp_str.length(SIZEOF_STORED_DOUBLE * lcnt);
+*/
+      double xmin, xmax, ymin, ymax;
+/*
+      float8store(buf,xmin);
+      float8store(buf+8,xmax);
+      float8store(buf+16,ymin);
+      float8store(buf+24,ymax);
+      memcpy(&xmin,new_ptr,sizeof(xmin));
+      memcpy(&xmax,new_ptr + 8,sizeof(xmax));
+      memcpy(&ymin,new_ptr + 16,sizeof(ymin));
+      memcpy(&ymax,new_ptr + 24,sizeof(ymax));
+      float8get(xmin, buf);
+      float8get(xmax, buf + 8);
+      float8get(ymin, buf + 16);
+      float8get(ymax, buf + 24);
+      DBUG_PRINT("info", ("spider geo is %f %f %f %f",
+        xmin, xmax, ymin, ymax));
+      DBUG_PRINT("info", ("spider geo is %.14g %.14g %.14g %.14g",
+        xmin, xmax, ymin, ymax));
+*/
+      float8get(xmin, new_ptr);
+      float8get(xmax, new_ptr + 8);
+      float8get(ymin, new_ptr + 16);
+      float8get(ymax, new_ptr + 24);
+      DBUG_PRINT("info", ("spider geo is %f %f %f %f",
+        xmin, xmax, ymin, ymax));
+/*
+      float8get(xmin, new_ptr + SIZEOF_STORED_DOUBLE * 4);
+      float8get(xmax, new_ptr + SIZEOF_STORED_DOUBLE * 5);
+      float8get(ymin, new_ptr + SIZEOF_STORED_DOUBLE * 6);
+      float8get(ymax, new_ptr + SIZEOF_STORED_DOUBLE * 7);
+      DBUG_PRINT("info", ("spider geo is %f %f %f %f",
+        xmin, xmax, ymin, ymax));
+      float8get(xmin, new_ptr + SIZEOF_STORED_DOUBLE * 8);
+      float8get(xmax, new_ptr + SIZEOF_STORED_DOUBLE * 9);
+      float8get(ymin, new_ptr + SIZEOF_STORED_DOUBLE * 10);
+      float8get(ymax, new_ptr + SIZEOF_STORED_DOUBLE * 11);
+      DBUG_PRINT("info", ("spider geo is %f %f %f %f",
+        xmin, xmax, ymin, ymax));
+      float8get(xmin, new_ptr + SIZEOF_STORED_DOUBLE * 12);
+      float8get(xmax, new_ptr + SIZEOF_STORED_DOUBLE * 13);
+      float8get(ymin, new_ptr + SIZEOF_STORED_DOUBLE * 14);
+      float8get(ymax, new_ptr + SIZEOF_STORED_DOUBLE * 15);
+      DBUG_PRINT("info", ("spider geo is %f %f %f %f",
+        xmin, xmax, ymin, ymax));
+*/
+/*
+      tmp_str.set_quick((char *) new_ptr, SIZEOF_STORED_DOUBLE * 4,
+        &my_charset_bin);
+*/
+      tmp_str.length(0);
+      tmp_str.q_append((char *) SPIDER_SQL_LINESTRING_HEAD_STR,
+        SPIDER_SQL_LINESTRING_HEAD_LEN);
+      tmp_str.q_append((char *) new_ptr, SIZEOF_STORED_DOUBLE);
+      tmp_str.q_append((char *) new_ptr + SIZEOF_STORED_DOUBLE * 2,
+        SIZEOF_STORED_DOUBLE);
+      tmp_str.q_append((char *) new_ptr + SIZEOF_STORED_DOUBLE,
+        SIZEOF_STORED_DOUBLE);
+      tmp_str.q_append((char *) new_ptr + SIZEOF_STORED_DOUBLE * 3,
+        SIZEOF_STORED_DOUBLE);
+      ptr = tmp_str.get_str();
+    } else {
+      ptr = field->val_str(tmp_str.get_str(), new_ptr);
+      tmp_str.mem_calc();
+    }
+  } else {
+    ptr = field->val_str(tmp_str.get_str());
+    tmp_str.mem_calc();
+  }
+
+  thd->variables.time_zone = saved_time_zone;
+
+  DBUG_PRINT("info", ("spider field->type() is %d", field->type()));
+  DBUG_PRINT("info", ("spider ptr->length() is %d", ptr->length()));
+/*
+  if (
+    field->type() == MYSQL_TYPE_BIT ||
+    (field->type() >= MYSQL_TYPE_TINY_BLOB &&
+      field->type() <= MYSQL_TYPE_BLOB)
+  ) {
+    uchar *hex_ptr = (uchar *) ptr->ptr(), *end_ptr;
+    char *str_ptr;
+    DBUG_PRINT("info", ("spider HEX"));
+    if (str->reserve(SPIDER_SQL_HEX_LEN + ptr->length() * 2))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_HEX_STR, SPIDER_SQL_HEX_LEN);
+    str_ptr = (char *) str->ptr() + str->length();
+    for (end_ptr = hex_ptr + ptr->length(); hex_ptr < end_ptr; hex_ptr++)
+    {
+      *str_ptr++ = spider_dig_upper[(*hex_ptr) >> 4];
+      *str_ptr++ = spider_dig_upper[(*hex_ptr) & 0x0F];
+    }
+    str->length(str->length() + ptr->length() * 2);
+  } else 
+*/
+  if (field->result_type() == STRING_RESULT)
+  {
+    DBUG_PRINT("info", ("spider STRING_RESULT"));
+    if (str->reserve(SPIDER_SQL_VALUE_QUOTE_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    if (
+      field->type() == MYSQL_TYPE_VARCHAR ||
+      (field->type() >= MYSQL_TYPE_ENUM &&
+        field->type() <= MYSQL_TYPE_GEOMETRY)
+    ) {
+      DBUG_PRINT("info", ("spider append_escaped"));
+      char buf2[MAX_FIELD_WIDTH];
+      spider_string tmp_str2(buf2, MAX_FIELD_WIDTH, access_charset);
+      tmp_str2.init_calc_mem(182);
+      tmp_str2.length(0);
+      if (
+        tmp_str2.append(ptr->ptr(), ptr->length(), field->charset()) ||
+        str->reserve(tmp_str2.length() * 2) ||
+        append_escaped_util(str, tmp_str2.get_str())
+      )
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    } else if (str->append(*ptr))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    if (str->reserve(SPIDER_SQL_VALUE_QUOTE_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+  } else if (field->str_needs_quotes())
+  {
+    if (str->reserve(SPIDER_SQL_VALUE_QUOTE_LEN * 2 + ptr->length() * 2 + 2))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    append_escaped_util(str, ptr);
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+  } else if (str->append(*ptr))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle_util::append_from_with_alias(
+  spider_string *str,
+  const char **table_names,
+  uint *table_name_lengths,
+  const char **table_aliases,
+  uint *table_alias_lengths,
+  uint table_count,
+  int *table_name_pos,
+  bool over_write
+) {
+  uint roop_count, length = 0;
+  DBUG_ENTER("spider_db_oracle_util::append_from_with_alias");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!over_write)
+  {
+    for (roop_count = 0; roop_count < table_count; roop_count++)
+      length += table_name_lengths[roop_count] + SPIDER_SQL_SPACE_LEN +
+        table_alias_lengths[roop_count] + SPIDER_SQL_COMMA_LEN;
+    if (str->reserve(SPIDER_SQL_FROM_LEN + length))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_FROM_STR, SPIDER_SQL_FROM_LEN);
+    *table_name_pos = str->length();
+  }
+  for (roop_count = 0; roop_count < table_count; roop_count++)
+  {
+    str->q_append(table_names[roop_count], table_name_lengths[roop_count]);
+    str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+    str->q_append(table_aliases[roop_count], table_alias_lengths[roop_count]);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+  str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle_util::append_trx_isolation(
+  spider_string *str,
+  int trx_isolation
+) {
+  DBUG_ENTER("spider_db_oracle_util::append_trx_isolation");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_SEMICOLON_LEN +
+    SPIDER_SQL_ISO_READ_COMMITTED_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  if (str->length())
+  {
+    str->q_append(SPIDER_SQL_SEMICOLON_STR, SPIDER_SQL_SEMICOLON_LEN);
+  }
+  switch (trx_isolation)
+  {
+    case ISO_READ_UNCOMMITTED:
+    case ISO_READ_COMMITTED:
+      str->q_append(SPIDER_SQL_ISO_READ_COMMITTED_STR,
+        SPIDER_SQL_ISO_READ_COMMITTED_LEN);
+      break;
+    case ISO_REPEATABLE_READ:
+    case ISO_SERIALIZABLE:
+      str->q_append(SPIDER_SQL_ISO_SERIALIZABLE_STR,
+        SPIDER_SQL_ISO_SERIALIZABLE_LEN);
+      break;
+    default:
+      DBUG_RETURN(HA_ERR_UNSUPPORTED);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle_util::append_autocommit(
+  spider_string *str,
+  bool autocommit
+) {
+  DBUG_ENTER("spider_db_oracle_util::append_autocommit");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_SEMICOLON_LEN + SPIDER_SQL_AUTOCOMMIT_OFF_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  if (str->length())
+  {
+    str->q_append(SPIDER_SQL_SEMICOLON_STR, SPIDER_SQL_SEMICOLON_LEN);
+  }
+  if (autocommit)
+  {
+    str->q_append(SPIDER_SQL_AUTOCOMMIT_ON_STR,
+      SPIDER_SQL_AUTOCOMMIT_ON_LEN);
+  } else {
+    str->q_append(SPIDER_SQL_AUTOCOMMIT_OFF_STR,
+      SPIDER_SQL_AUTOCOMMIT_OFF_LEN);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle_util::append_sql_log_off(
+  spider_string *str,
+  bool sql_log_off
+) {
+  DBUG_ENTER("spider_db_oracle_util::append_sql_log_off");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle_util::append_wait_timeout(
+  spider_string *str,
+  int wait_timeout
+) {
+  DBUG_ENTER("spider_db_oracle_util::append_wait_timeout");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle_util::append_sql_mode(
+  spider_string *str,
+  sql_mode_t sql_mode
+) {
+  DBUG_ENTER("spider_db_oracle_util::append_sql_mode");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle_util::append_time_zone(
+  spider_string *str,
+  Time_zone *time_zone
+) {
+  DBUG_ENTER("spider_db_oracle_util::append_time_zone");
+  DBUG_PRINT("info",("spider this=%p", this));
+  /* nothing to do */
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle_util::append_start_transaction(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_db_oracle_util::append_start_transaction");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_SEMICOLON_LEN +
+    SPIDER_SQL_START_TRANSACTION_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  if (str->length())
+  {
+    str->q_append(SPIDER_SQL_SEMICOLON_STR, SPIDER_SQL_SEMICOLON_LEN);
+  }
+  str->q_append(SPIDER_SQL_START_TRANSACTION_STR,
+    SPIDER_SQL_START_TRANSACTION_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle_util::append_xa_start(
+  spider_string *str,
+  XID *xid
+) {
+  DBUG_ENTER("spider_db_oracle_util::append_xa_start");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle_util::append_lock_table_head(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_db_oracle_util::append_lock_table_head");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle_util::append_lock_table_body(
+  spider_string *str,
+  const char *db_name,
+  uint db_name_length,
+  CHARSET_INFO *db_name_charset,
+  const char *table_name,
+  uint table_name_length,
+  CHARSET_INFO *table_name_charset,
+  int lock_type
+) {
+  DBUG_ENTER("spider_db_oracle_util::append_lock_table_body");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_SEMICOLON_LEN + SPIDER_SQL_LOCK_TABLE_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  if (str->length())
+  {
+    str->q_append(SPIDER_SQL_SEMICOLON_STR, SPIDER_SQL_SEMICOLON_LEN);
+  }
+  str->q_append(SPIDER_SQL_LOCK_TABLE_STR, SPIDER_SQL_LOCK_TABLE_LEN);
+  if (str->reserve(SPIDER_SQL_NAME_QUOTE_LEN))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  if (
+    str->append(db_name, db_name_length, db_name_charset) ||
+    str->reserve((SPIDER_SQL_NAME_QUOTE_LEN) * 2 + SPIDER_SQL_DOT_LEN)
+  ) {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  str->q_append(SPIDER_SQL_DOT_STR, SPIDER_SQL_DOT_LEN);
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  if (
+    str->append(table_name, table_name_length, table_name_charset) ||
+    str->reserve(SPIDER_SQL_NAME_QUOTE_LEN +
+      spider_db_table_lock_len[lock_type])
+  ) {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  str->q_append(spider_db_table_lock_str[lock_type],
+    spider_db_table_lock_len[lock_type]);
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle_util::append_lock_table_tail(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_db_oracle_util::append_lock_table_tail");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle_util::append_unlock_table(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_db_oracle_util::append_unlock_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_COMMIT_LEN))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str->q_append(SPIDER_SQL_COMMIT_STR, SPIDER_SQL_COMMIT_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle_util::open_item_func(
+  Item_func *item_func,
+  ha_spider *spider,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  bool use_fields,
+  spider_fields *fields
+) {
+  uint dbton_id = spider_dbton_oracle.dbton_id;
+  int error_num;
+  Item *item, **item_list = item_func->arguments();
+  Field *field;
+  uint roop_count, item_count = item_func->argument_count(), start_item = 0;
+  const char *func_name = SPIDER_SQL_NULL_CHAR_STR,
+    *separator_str = SPIDER_SQL_NULL_CHAR_STR,
+    *last_str = SPIDER_SQL_NULL_CHAR_STR;
+  int func_name_length = SPIDER_SQL_NULL_CHAR_LEN,
+    separator_str_length = SPIDER_SQL_NULL_CHAR_LEN,
+    last_str_length = SPIDER_SQL_NULL_CHAR_LEN;
+  int use_pushdown_udf;
+  bool merge_func = FALSE;
+  DBUG_ENTER("spider_db_oracle_util::open_item_func");
+  if (str)
+  {
+    if (str->reserve(SPIDER_SQL_OPEN_PAREN_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  }
+  DBUG_PRINT("info",("spider functype = %d", item_func->functype()));
+  switch (item_func->functype())
+  {
+    case Item_func::ISNULL_FUNC:
+      last_str = SPIDER_SQL_IS_NULL_STR;
+      last_str_length = SPIDER_SQL_IS_NULL_LEN;
+      break;
+    case Item_func::ISNOTNULL_FUNC:
+      last_str = SPIDER_SQL_IS_NOT_NULL_STR;
+      last_str_length = SPIDER_SQL_IS_NOT_NULL_LEN;
+      break;
+    case Item_func::UNKNOWN_FUNC:
+      func_name = (char*) item_func->func_name();
+      func_name_length = strlen(func_name);
+      DBUG_PRINT("info",("spider func_name = %s", func_name));
+      DBUG_PRINT("info",("spider func_name_length = %d", func_name_length));
+      if (func_name_length == 1 &&
+        (
+          !strncasecmp("+", func_name, func_name_length) ||
+          !strncasecmp("-", func_name, func_name_length) ||
+          !strncasecmp("*", func_name, func_name_length) ||
+          !strncasecmp("/", func_name, func_name_length) ||
+          !strncasecmp("%", func_name, func_name_length) ||
+          !strncasecmp("&", func_name, func_name_length) ||
+          !strncasecmp("|", func_name, func_name_length) ||
+          !strncasecmp("^", func_name, func_name_length)
+        )
+      ) {
+        /* no action */
+        break;
+      } else if (func_name_length == 2 &&
+        (
+          !strncasecmp("<<", func_name, func_name_length) ||
+          !strncasecmp(">>", func_name, func_name_length)
+        )
+      ) {
+        /* no action */
+        break;
+      } else if (func_name_length == 3 &&
+        !strncasecmp("div", func_name, func_name_length)
+      ) {
+        /* no action */
+        break;
+      } else if (func_name_length == 4)
+      {
+        if (
+          !strncasecmp("rand", func_name, func_name_length) &&
+#ifdef SPIDER_Item_args_arg_count_IS_PROTECTED
+          !item_func->argument_count()
+#else
+          !item_func->arg_count
+#endif
+        ) {
+          if (str)
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+          DBUG_RETURN(spider_db_open_item_int(item_func, NULL, spider, str,
+            alias, alias_length, dbton_id, use_fields, fields));
+        } else if (
+          !strncasecmp("case", func_name, func_name_length)
+        ) {
+#ifdef ITEM_FUNC_CASE_PARAMS_ARE_PUBLIC
+          Item_func_case *item_func_case = (Item_func_case *) item_func;
+          if (str)
+          {
+            if (str->reserve(SPIDER_SQL_CASE_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(SPIDER_SQL_CASE_STR, SPIDER_SQL_CASE_LEN);
+          }
+          if (item_func_case->first_expr_num != -1)
+          {
+            if ((error_num = spider_db_print_item_type(
+              item_list[item_func_case->first_expr_num], NULL, spider, str,
+              alias, alias_length, dbton_id, use_fields, fields)))
+              DBUG_RETURN(error_num);
+          }
+          for (roop_count = 0; roop_count < item_func_case->ncases;
+            roop_count += 2)
+          {
+            if (str)
+            {
+              if (str->reserve(SPIDER_SQL_WHEN_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_WHEN_STR, SPIDER_SQL_WHEN_LEN);
+            }
+            if ((error_num = spider_db_print_item_type(
+              item_list[roop_count], NULL, spider, str,
+              alias, alias_length, dbton_id, use_fields, fields)))
+              DBUG_RETURN(error_num);
+            if (str)
+            {
+              if (str->reserve(SPIDER_SQL_THEN_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_THEN_STR, SPIDER_SQL_THEN_LEN);
+            }
+            if ((error_num = spider_db_print_item_type(
+              item_list[roop_count + 1], NULL, spider, str,
+              alias, alias_length, dbton_id, use_fields, fields)))
+              DBUG_RETURN(error_num);
+          }
+          if (item_func_case->else_expr_num != -1)
+          {
+            if (str)
+            {
+              if (str->reserve(SPIDER_SQL_ELSE_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_ELSE_STR, SPIDER_SQL_ELSE_LEN);
+            }
+            if ((error_num = spider_db_print_item_type(
+              item_list[item_func_case->else_expr_num], NULL, spider, str,
+              alias, alias_length, dbton_id, use_fields, fields)))
+              DBUG_RETURN(error_num);
+          }
+          if (str)
+          {
+            if (str->reserve(SPIDER_SQL_END_LEN + SPIDER_SQL_CLOSE_PAREN_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(SPIDER_SQL_END_STR, SPIDER_SQL_END_LEN);
+            str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+              SPIDER_SQL_CLOSE_PAREN_LEN);
+          }
+          DBUG_RETURN(0);
+#else
+          DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+#endif
+        }
+      } else if (func_name_length == 6 &&
+        !strncasecmp("istrue", func_name, func_name_length)
+      ) {
+        last_str = SPIDER_SQL_IS_TRUE_STR;
+        last_str_length = SPIDER_SQL_IS_TRUE_LEN;
+        break;
+      } else if (func_name_length == 7)
+      {
+        if (!strncasecmp("isfalse", func_name, func_name_length))
+        {
+          last_str = SPIDER_SQL_IS_FALSE_STR;
+          last_str_length = SPIDER_SQL_IS_FALSE_LEN;
+          break;
+        } else if (
+          !strncasecmp("sysdate", func_name, func_name_length) ||
+          !strncasecmp("curdate", func_name, func_name_length) ||
+          !strncasecmp("curtime", func_name, func_name_length)
+        ) {
+          if (str)
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+          DBUG_RETURN(spider_db_open_item_string(item_func, NULL, spider, str,
+            alias, alias_length, dbton_id, use_fields, fields));
+        } else if (
+          !strncasecmp("convert", func_name, func_name_length)
+        ) {
+          if (str)
+          {
+            if (str->reserve(func_name_length * 2 + SPIDER_SQL_OPEN_PAREN_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(func_name, func_name_length);
+            str->q_append(SPIDER_SQL_OPEN_PAREN_STR,
+              SPIDER_SQL_OPEN_PAREN_LEN);
+            last_str = SPIDER_SQL_CLOSE_PAREN_STR;
+            last_str_length = SPIDER_SQL_CLOSE_PAREN_LEN;
+          }
+          break;
+        }
+      } else if (func_name_length == 8 &&
+        (
+          !strncasecmp("utc_date", func_name, func_name_length) ||
+          !strncasecmp("utc_time", func_name, func_name_length)
+        )
+      ) {
+        if (str)
+          str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+        DBUG_RETURN(spider_db_open_item_string(item_func, NULL, spider, str,
+          alias, alias_length, dbton_id, use_fields, fields));
+      } else if (func_name_length == 9 &&
+        !strncasecmp("isnottrue", func_name, func_name_length)
+      ) {
+        last_str = SPIDER_SQL_IS_NOT_TRUE_STR;
+        last_str_length = SPIDER_SQL_IS_NOT_TRUE_LEN;
+        break;
+      } else if (func_name_length == 10)
+      {
+        if (!strncasecmp("isnotfalse", func_name, func_name_length))
+        {
+          last_str = SPIDER_SQL_IS_NOT_FALSE_STR;
+          last_str_length = SPIDER_SQL_IS_NOT_FALSE_LEN;
+          break;
+        } else if (!strncasecmp("column_get", func_name, func_name_length))
+        {
+          if (str)
+          {
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+            if (str->reserve(func_name_length + SPIDER_SQL_OPEN_PAREN_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(func_name, func_name_length);
+            str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+          }
+          func_name = SPIDER_SQL_COMMA_STR;
+          func_name_length = SPIDER_SQL_COMMA_LEN;
+          separator_str = SPIDER_SQL_COMMA_STR;
+          separator_str_length = SPIDER_SQL_COMMA_LEN;
+          break;
+        }
+      } else if (func_name_length == 12)
+      {
+        if (!strncasecmp("cast_as_date", func_name, func_name_length))
+        {
+          item = item_list[0];
+          if (item->type() == Item::FUNC_ITEM)
+          {
+            DBUG_PRINT("info",("spider child is FUNC_ITEM"));
+            Item_func *ifunc = (Item_func *) item;
+            if (ifunc->functype() == Item_func::UNKNOWN_FUNC)
+            {
+              const char *child_func_name;
+              int child_func_name_length;
+              DBUG_PRINT("info",("spider child is UNKNOWN_FUNC"));
+              child_func_name = (char*) ifunc->func_name();
+              child_func_name_length = strlen(child_func_name);
+              DBUG_PRINT("info",("spider child func_name is %s", child_func_name));
+              if (
+                child_func_name_length == 10 &&
+                !strncasecmp("column_get", child_func_name, child_func_name_length)
+              ) {
+                DBUG_PRINT("info",("spider this is merge func"));
+                merge_func = TRUE;
+              }
+            }
+          }
+
+          if (str)
+          {
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+            if (!merge_func)
+            {
+              if (str->reserve(SPIDER_SQL_CAST_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_CAST_STR, SPIDER_SQL_CAST_LEN);
+            }
+          }
+          last_str = SPIDER_SQL_AS_DATE_STR;
+          last_str_length = SPIDER_SQL_AS_DATE_LEN;
+          break;
+        } else if (!strncasecmp("cast_as_time", func_name, func_name_length))
+        {
+          item = item_list[0];
+          if (item->type() == Item::FUNC_ITEM)
+          {
+            DBUG_PRINT("info",("spider child is FUNC_ITEM"));
+            Item_func *ifunc = (Item_func *) item;
+            if (ifunc->functype() == Item_func::UNKNOWN_FUNC)
+            {
+              const char *child_func_name;
+              int child_func_name_length;
+              DBUG_PRINT("info",("spider child is UNKNOWN_FUNC"));
+              child_func_name = (char*) ifunc->func_name();
+              child_func_name_length = strlen(child_func_name);
+              DBUG_PRINT("info",("spider child func_name is %s", child_func_name));
+              if (
+                child_func_name_length == 10 &&
+                !strncasecmp("column_get", child_func_name, child_func_name_length)
+              ) {
+                DBUG_PRINT("info",("spider this is merge func"));
+                merge_func = TRUE;
+              }
+            }
+          }
+
+          if (str)
+          {
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+            if (!merge_func)
+            {
+              if (str->reserve(SPIDER_SQL_CAST_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_CAST_STR, SPIDER_SQL_CAST_LEN);
+            }
+          }
+          last_str = SPIDER_SQL_AS_TIME_STR;
+          last_str_length = SPIDER_SQL_AS_TIME_LEN;
+          break;
+        }
+      } else if (func_name_length == 13)
+      {
+        if (!strncasecmp("utc_timestamp", func_name, func_name_length))
+        {
+          if (str)
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+          DBUG_RETURN(spider_db_open_item_string(item_func, NULL, spider, str,
+            alias, alias_length, dbton_id, use_fields, fields));
+        } else if (!strncasecmp("timestampdiff", func_name, func_name_length))
+        {
+#ifdef ITEM_FUNC_TIMESTAMPDIFF_ARE_PUBLIC
+          Item_func_timestamp_diff *item_func_timestamp_diff =
+            (Item_func_timestamp_diff *) item_func;
+          if (str)
+          {
+            const char *interval_str;
+            uint interval_len;
+            switch (item_func_timestamp_diff->int_type)
+            {
+              case INTERVAL_YEAR:
+                interval_str = SPIDER_SQL_YEAR_STR;
+                interval_len = SPIDER_SQL_YEAR_LEN;
+                break;
+              case INTERVAL_QUARTER:
+                interval_str = SPIDER_SQL_QUARTER_STR;
+                interval_len = SPIDER_SQL_QUARTER_LEN;
+                break;
+              case INTERVAL_MONTH:
+                interval_str = SPIDER_SQL_MONTH_STR;
+                interval_len = SPIDER_SQL_MONTH_LEN;
+                break;
+              case INTERVAL_WEEK:
+                interval_str = SPIDER_SQL_WEEK_STR;
+                interval_len = SPIDER_SQL_WEEK_LEN;
+                break;
+              case INTERVAL_DAY:
+                interval_str = SPIDER_SQL_DAY_STR;
+                interval_len = SPIDER_SQL_DAY_LEN;
+                break;
+              case INTERVAL_HOUR:
+                interval_str = SPIDER_SQL_HOUR_STR;
+                interval_len = SPIDER_SQL_HOUR_LEN;
+                break;
+              case INTERVAL_MINUTE:
+                interval_str = SPIDER_SQL_MINUTE_STR;
+                interval_len = SPIDER_SQL_MINUTE_LEN;
+                break;
+              case INTERVAL_SECOND:
+                interval_str = SPIDER_SQL_SECOND_STR;
+                interval_len = SPIDER_SQL_SECOND_LEN;
+                break;
+              case INTERVAL_MICROSECOND:
+                interval_str = SPIDER_SQL_MICROSECOND_STR;
+                interval_len = SPIDER_SQL_MICROSECOND_LEN;
+                break;
+              default:
+                interval_str = "";
+                interval_len = 0;
+                break;
+            }
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+            if (str->reserve(func_name_length + SPIDER_SQL_OPEN_PAREN_LEN +
+              interval_len + SPIDER_SQL_COMMA_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(func_name, func_name_length);
+            str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+            str->q_append(interval_str, interval_len);
+            str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+          }
+          if ((error_num = spider_db_print_item_type(item_list[0], NULL, spider,
+            str, alias, alias_length, dbton_id, use_fields, fields)))
+            DBUG_RETURN(error_num);
+          if (str)
+          {
+            if (str->reserve(SPIDER_SQL_COMMA_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+          }
+          if ((error_num = spider_db_print_item_type(item_list[1], NULL, spider,
+            str, alias, alias_length, dbton_id, use_fields, fields)))
+            DBUG_RETURN(error_num);
+          if (str)
+          {
+            if (str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+              SPIDER_SQL_CLOSE_PAREN_LEN);
+          }
+          DBUG_RETURN(0);
+#else
+          DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+#endif
+        }
+      } else if (func_name_length == 14)
+      {
+        if (!strncasecmp("cast_as_binary", func_name, func_name_length))
+        {
+          item = item_list[0];
+          if (item->type() == Item::FUNC_ITEM)
+          {
+            DBUG_PRINT("info",("spider child is FUNC_ITEM"));
+            Item_func *ifunc = (Item_func *) item;
+            if (ifunc->functype() == Item_func::UNKNOWN_FUNC)
+            {
+              const char *child_func_name;
+              int child_func_name_length;
+              DBUG_PRINT("info",("spider child is UNKNOWN_FUNC"));
+              child_func_name = (char*) ifunc->func_name();
+              child_func_name_length = strlen(child_func_name);
+              DBUG_PRINT("info",("spider child func_name is %s", child_func_name));
+              if (
+                child_func_name_length == 10 &&
+                !strncasecmp("column_get", child_func_name, child_func_name_length)
+              ) {
+                DBUG_PRINT("info",("spider this is merge func"));
+                merge_func = TRUE;
+              }
+            }
+          }
+
+          if (str)
+          {
+            char tmp_buf[MAX_FIELD_WIDTH], *tmp_ptr, *tmp_ptr2;
+            spider_string tmp_str(tmp_buf, MAX_FIELD_WIDTH, str->charset());
+            tmp_str.init_calc_mem(123);
+            tmp_str.length(0);
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+            if (!merge_func)
+            {
+              if (str->reserve(SPIDER_SQL_CAST_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_CAST_STR, SPIDER_SQL_CAST_LEN);
+            }
+#if MYSQL_VERSION_ID < 50500
+            item_func->print(tmp_str.get_str(), QT_IS);
+#else
+            item_func->print(tmp_str.get_str(), QT_TO_SYSTEM_CHARSET);
+#endif
+            tmp_str.mem_calc();
+            if (tmp_str.reserve(1))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            tmp_ptr = tmp_str.c_ptr_quick();
+            DBUG_PRINT("info",("spider tmp_ptr = %s", tmp_ptr));
+            while ((tmp_ptr2 = strstr(tmp_ptr, SPIDER_SQL_AS_BINARY_STR)))
+              tmp_ptr = tmp_ptr2 + 1;
+            last_str = tmp_ptr - 1;
+            last_str_length = strlen(last_str) - SPIDER_SQL_CLOSE_PAREN_LEN;
+          }
+          break;
+        } else if (!strncasecmp("cast_as_signed", func_name, func_name_length))
+        {
+          item = item_list[0];
+          if (item->type() == Item::FUNC_ITEM)
+          {
+            DBUG_PRINT("info",("spider child is FUNC_ITEM"));
+            Item_func *ifunc = (Item_func *) item;
+            if (ifunc->functype() == Item_func::UNKNOWN_FUNC)
+            {
+              const char *child_func_name;
+              int child_func_name_length;
+              DBUG_PRINT("info",("spider child is UNKNOWN_FUNC"));
+              child_func_name = (char*) ifunc->func_name();
+              child_func_name_length = strlen(child_func_name);
+              DBUG_PRINT("info",("spider child func_name is %s", child_func_name));
+              if (
+                child_func_name_length == 10 &&
+                !strncasecmp("column_get", child_func_name, child_func_name_length)
+              ) {
+                DBUG_PRINT("info",("spider this is merge func"));
+                merge_func = TRUE;
+              }
+            }
+          }
+
+          if (str)
+          {
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+            if (!merge_func)
+            {
+              if (str->reserve(SPIDER_SQL_CAST_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_CAST_STR, SPIDER_SQL_CAST_LEN);
+            }
+          }
+          last_str = SPIDER_SQL_AS_SIGNED_STR;
+          last_str_length = SPIDER_SQL_AS_SIGNED_LEN;
+          break;
+        }
+      } else if (func_name_length == 16)
+      {
+        if (!strncasecmp("cast_as_unsigned", func_name, func_name_length))
+        {
+          item = item_list[0];
+          if (item->type() == Item::FUNC_ITEM)
+          {
+            DBUG_PRINT("info",("spider child is FUNC_ITEM"));
+            Item_func *ifunc = (Item_func *) item;
+            if (ifunc->functype() == Item_func::UNKNOWN_FUNC)
+            {
+              const char *child_func_name;
+              int child_func_name_length;
+              DBUG_PRINT("info",("spider child is UNKNOWN_FUNC"));
+              child_func_name = (char*) ifunc->func_name();
+              child_func_name_length = strlen(child_func_name);
+              DBUG_PRINT("info",("spider child func_name is %s", child_func_name));
+              if (
+                child_func_name_length == 10 &&
+                !strncasecmp("column_get", child_func_name, child_func_name_length)
+              ) {
+                DBUG_PRINT("info",("spider this is merge func"));
+                merge_func = TRUE;
+              }
+            }
+          }
+
+          if (str)
+          {
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+            if (!merge_func)
+            {
+              if (str->reserve(SPIDER_SQL_CAST_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_CAST_STR, SPIDER_SQL_CAST_LEN);
+            }
+          }
+          last_str = SPIDER_SQL_AS_UNSIGNED_STR;
+          last_str_length = SPIDER_SQL_AS_UNSIGNED_LEN;
+          break;
+        } else if (!strncasecmp("decimal_typecast", func_name,
+          func_name_length))
+        {
+          item = item_list[0];
+          if (item->type() == Item::FUNC_ITEM)
+          {
+            DBUG_PRINT("info",("spider child is FUNC_ITEM"));
+            Item_func *ifunc = (Item_func *) item;
+            if (ifunc->functype() == Item_func::UNKNOWN_FUNC)
+            {
+              const char *child_func_name;
+              int child_func_name_length;
+              DBUG_PRINT("info",("spider child is UNKNOWN_FUNC"));
+              child_func_name = (char*) ifunc->func_name();
+              child_func_name_length = strlen(child_func_name);
+              DBUG_PRINT("info",("spider child func_name is %s", child_func_name));
+              if (
+                child_func_name_length == 10 &&
+                !strncasecmp("column_get", child_func_name, child_func_name_length)
+              ) {
+                DBUG_PRINT("info",("spider this is merge func"));
+                merge_func = TRUE;
+              }
+            }
+          }
+
+          if (str)
+          {
+            char tmp_buf[MAX_FIELD_WIDTH], *tmp_ptr, *tmp_ptr2;
+            spider_string tmp_str(tmp_buf, MAX_FIELD_WIDTH, str->charset());
+            tmp_str.init_calc_mem(124);
+            tmp_str.length(0);
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+            if (!merge_func)
+            {
+              if (str->reserve(SPIDER_SQL_CAST_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_CAST_STR, SPIDER_SQL_CAST_LEN);
+            }
+#if MYSQL_VERSION_ID < 50500
+            item_func->print(tmp_str.get_str(), QT_IS);
+#else
+            item_func->print(tmp_str.get_str(), QT_TO_SYSTEM_CHARSET);
+#endif
+            tmp_str.mem_calc();
+            if (tmp_str.reserve(1))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            tmp_ptr = tmp_str.c_ptr_quick();
+            DBUG_PRINT("info",("spider tmp_ptr = %s", tmp_ptr));
+            while ((tmp_ptr2 = strstr(tmp_ptr, SPIDER_SQL_AS_DECIMAL_STR)))
+              tmp_ptr = tmp_ptr2 + 1;
+            last_str = tmp_ptr - 1;
+            last_str_length = strlen(last_str) - SPIDER_SQL_CLOSE_PAREN_LEN;
+          }
+          break;
+        } else if (!strncasecmp("cast_as_datetime", func_name,
+          func_name_length))
+        {
+          item = item_list[0];
+          if (item->type() == Item::FUNC_ITEM)
+          {
+            DBUG_PRINT("info",("spider child is FUNC_ITEM"));
+            Item_func *ifunc = (Item_func *) item;
+            if (ifunc->functype() == Item_func::UNKNOWN_FUNC)
+            {
+              const char *child_func_name;
+              int child_func_name_length;
+              DBUG_PRINT("info",("spider child is UNKNOWN_FUNC"));
+              child_func_name = (char*) ifunc->func_name();
+              child_func_name_length = strlen(child_func_name);
+              DBUG_PRINT("info",("spider child func_name is %s", child_func_name));
+              if (
+                child_func_name_length == 10 &&
+                !strncasecmp("column_get", child_func_name, child_func_name_length)
+              ) {
+                DBUG_PRINT("info",("spider this is merge func"));
+                merge_func = TRUE;
+              }
+            }
+          }
+
+          if (str)
+          {
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+            if (!merge_func)
+            {
+              if (str->reserve(SPIDER_SQL_CAST_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_CAST_STR, SPIDER_SQL_CAST_LEN);
+            }
+          }
+          last_str = SPIDER_SQL_AS_DATETIME_STR;
+          last_str_length = SPIDER_SQL_AS_DATETIME_LEN;
+          break;
+        }
+      } else if (func_name_length == 17)
+      {
+        if (!strncasecmp("date_add_interval", func_name, func_name_length))
+        {
+          Item_date_add_interval *item_date_add_interval =
+            (Item_date_add_interval *) item_func;
+          switch (item_date_add_interval->int_type)
+          {
+            case INTERVAL_YEAR:
+            case INTERVAL_QUARTER:
+            case INTERVAL_MONTH:
+              if (str)
+              {
+                if (str->reserve(SPIDER_SQL_ADD_MONTHS_LEN +
+                  SPIDER_SQL_OPEN_PAREN_LEN))
+                  DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                str->q_append(SPIDER_SQL_ADD_MONTHS_STR,
+                  SPIDER_SQL_ADD_MONTHS_LEN);
+                str->q_append(SPIDER_SQL_OPEN_PAREN_STR,
+                  SPIDER_SQL_OPEN_PAREN_LEN);
+              }
+              if ((error_num = spider_db_print_item_type(item_list[0], NULL,
+                spider, str, alias, alias_length, dbton_id, use_fields,
+                fields)))
+                DBUG_RETURN(error_num);
+              if (str)
+              {
+                if (item_date_add_interval->date_sub_interval)
+                {
+                  if (str->reserve(SPIDER_SQL_COMMA_LEN +
+                    SPIDER_SQL_MINUS_LEN))
+                    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                  str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+                  str->q_append(SPIDER_SQL_MINUS_STR, SPIDER_SQL_MINUS_LEN);
+                } else {
+                  if (str->reserve(SPIDER_SQL_COMMA_LEN))
+                    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                  str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+                }
+              }
+              if ((error_num = spider_db_print_item_type(item_list[1], NULL,
+                spider, str, alias, alias_length, dbton_id, use_fields,
+                fields)))
+                DBUG_RETURN(error_num);
+              if (str)
+              {
+                if (item_date_add_interval->int_type == INTERVAL_YEAR)
+                {
+                  func_name = " * 12";
+                  func_name_length = sizeof(" * 12") - 1;
+                  if (str->reserve(func_name_length +
+                    (SPIDER_SQL_CLOSE_PAREN_LEN * 2)))
+                    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                  str->q_append(func_name, func_name_length);
+                  str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+                    SPIDER_SQL_CLOSE_PAREN_LEN);
+                  str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+                    SPIDER_SQL_CLOSE_PAREN_LEN);
+                } else if (item_date_add_interval->int_type ==
+                  INTERVAL_QUARTER)
+                {
+                  func_name = " * 3";
+                  func_name_length = sizeof(" * 3") - 1;
+                  if (str->reserve(func_name_length +
+                    (SPIDER_SQL_CLOSE_PAREN_LEN * 2)))
+                    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                  str->q_append(func_name, func_name_length);
+                  str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+                    SPIDER_SQL_CLOSE_PAREN_LEN);
+                  str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+                    SPIDER_SQL_CLOSE_PAREN_LEN);
+                } else {
+                  if (str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN * 2))
+                    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                  str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+                    SPIDER_SQL_CLOSE_PAREN_LEN);
+                  str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+                    SPIDER_SQL_CLOSE_PAREN_LEN);
+                }
+              }
+              break;
+            case INTERVAL_WEEK:
+            case INTERVAL_DAY:
+            case INTERVAL_HOUR:
+            case INTERVAL_MINUTE:
+            case INTERVAL_SECOND:
+            case INTERVAL_MICROSECOND:
+              if ((error_num = spider_db_print_item_type(item_list[0], NULL,
+                spider, str, alias, alias_length, dbton_id, use_fields,
+                fields)))
+                DBUG_RETURN(error_num);
+              if (str)
+              {
+                if (item_date_add_interval->date_sub_interval)
+                {
+                  if (str->reserve(SPIDER_SQL_MINUS_LEN))
+                    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                  str->q_append(SPIDER_SQL_MINUS_STR, SPIDER_SQL_MINUS_LEN);
+                } else {
+                  if (str->reserve(SPIDER_SQL_PLUS_LEN))
+                    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                  str->q_append(SPIDER_SQL_PLUS_STR, SPIDER_SQL_PLUS_LEN);
+                }
+              }
+              if ((error_num = spider_db_print_item_type(item_list[1], NULL,
+                spider, str, alias, alias_length, dbton_id, use_fields,
+                fields)))
+                DBUG_RETURN(error_num);
+              if (str)
+              {
+                if (item_date_add_interval->int_type == INTERVAL_WEEK)
+                {
+                  func_name = " * 7";
+                  func_name_length = sizeof(" * 7") - 1;
+                  if (str->reserve(func_name_length +
+                    (SPIDER_SQL_CLOSE_PAREN_LEN)))
+                    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                  str->q_append(func_name, func_name_length);
+                  str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+                    SPIDER_SQL_CLOSE_PAREN_LEN);
+                } else if (item_date_add_interval->int_type == INTERVAL_HOUR)
+                {
+                  func_name = " / 24";
+                  func_name_length = sizeof(" / 24") - 1;
+                  if (str->reserve(func_name_length +
+                    (SPIDER_SQL_CLOSE_PAREN_LEN)))
+                    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                  str->q_append(func_name, func_name_length);
+                  str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+                    SPIDER_SQL_CLOSE_PAREN_LEN);
+                } else if (item_date_add_interval->int_type == INTERVAL_MINUTE)
+                {
+                  func_name = " / 1440";
+                  func_name_length = sizeof(" / 1440") - 1;
+                  if (str->reserve(func_name_length +
+                    (SPIDER_SQL_CLOSE_PAREN_LEN)))
+                    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                  str->q_append(func_name, func_name_length);
+                  str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+                    SPIDER_SQL_CLOSE_PAREN_LEN);
+                } else if (item_date_add_interval->int_type == INTERVAL_SECOND)
+                {
+                  func_name = " / 86400";
+                  func_name_length = sizeof(" / 86400") - 1;
+                  if (str->reserve(func_name_length +
+                    (SPIDER_SQL_CLOSE_PAREN_LEN)))
+                    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                  str->q_append(func_name, func_name_length);
+                  str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+                    SPIDER_SQL_CLOSE_PAREN_LEN);
+                } else if (item_date_add_interval->int_type ==
+                  INTERVAL_MICROSECOND)
+                {
+                  func_name = " / 86400000000";
+                  func_name_length = sizeof(" / 86400000000") - 1;
+                  if (str->reserve(func_name_length +
+                    (SPIDER_SQL_CLOSE_PAREN_LEN)))
+                    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                  str->q_append(func_name, func_name_length);
+                  str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+                    SPIDER_SQL_CLOSE_PAREN_LEN);
+                } else {
+                  if (str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN))
+                    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+                  str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+                    SPIDER_SQL_CLOSE_PAREN_LEN);
+                }
+              }
+              break;
+            default:
+              DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+          }
+          DBUG_RETURN(0);
+          break;
+        }
+      }
+      if (str)
+      {
+        if (str->reserve(func_name_length + SPIDER_SQL_OPEN_PAREN_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(func_name, func_name_length);
+        str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+      }
+      func_name = SPIDER_SQL_COMMA_STR;
+      func_name_length = SPIDER_SQL_COMMA_LEN;
+      separator_str = SPIDER_SQL_COMMA_STR;
+      separator_str_length = SPIDER_SQL_COMMA_LEN;
+      last_str = SPIDER_SQL_CLOSE_PAREN_STR;
+      last_str_length = SPIDER_SQL_CLOSE_PAREN_LEN;
+      break;
+    case Item_func::NOW_FUNC:
+      if (str)
+        str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+      DBUG_RETURN(spider_db_open_item_string(item_func, NULL, spider, str,
+        alias, alias_length, dbton_id, use_fields, fields));
+    case Item_func::CHAR_TYPECAST_FUNC:
+      DBUG_PRINT("info",("spider CHAR_TYPECAST_FUNC"));
+      {
+        item = item_list[0];
+        if (item->type() == Item::FUNC_ITEM)
+        {
+          DBUG_PRINT("info",("spider child is FUNC_ITEM"));
+          Item_func *ifunc = (Item_func *) item;
+          if (ifunc->functype() == Item_func::UNKNOWN_FUNC)
+          {
+            const char *child_func_name;
+            int child_func_name_length;
+            DBUG_PRINT("info",("spider child is UNKNOWN_FUNC"));
+            child_func_name = (char*) ifunc->func_name();
+            child_func_name_length = strlen(child_func_name);
+            DBUG_PRINT("info",("spider child func_name is %s", child_func_name));
+            if (
+              child_func_name_length == 10 &&
+              !strncasecmp("column_get", child_func_name, child_func_name_length)
+            ) {
+              DBUG_PRINT("info",("spider this is merge func"));
+              merge_func = TRUE;
+            }
+          }
+        }
+
+        if (str)
+        {
+          char tmp_buf[MAX_FIELD_WIDTH], *tmp_ptr, *tmp_ptr2;
+          spider_string tmp_str(tmp_buf, MAX_FIELD_WIDTH, str->charset());
+          tmp_str.init_calc_mem(125);
+          tmp_str.length(0);
+          str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+          if (!merge_func)
+          {
+            if (str->reserve(SPIDER_SQL_CAST_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(SPIDER_SQL_CAST_STR, SPIDER_SQL_CAST_LEN);
+          }
+#if MYSQL_VERSION_ID < 50500
+          item_func->print(tmp_str.get_str(), QT_IS);
+#else
+          item_func->print(tmp_str.get_str(), QT_TO_SYSTEM_CHARSET);
+#endif
+          tmp_str.mem_calc();
+          if (tmp_str.reserve(1))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          tmp_ptr = tmp_str.c_ptr_quick();
+          DBUG_PRINT("info",("spider tmp_ptr = %s", tmp_ptr));
+          while ((tmp_ptr2 = strstr(tmp_ptr, SPIDER_SQL_AS_CHAR_STR)))
+            tmp_ptr = tmp_ptr2 + 1;
+          last_str = tmp_ptr - 1;
+          last_str_length = strlen(last_str) - SPIDER_SQL_CLOSE_PAREN_LEN;
+        }
+      }
+      break;
+    case Item_func::NOT_FUNC:
+      DBUG_PRINT("info",("spider NOT_FUNC"));
+      if (item_list[0]->type() == Item::COND_ITEM)
+      {
+        DBUG_PRINT("info",("spider item_list[0] is COND_ITEM"));
+        Item_cond *item_cond = (Item_cond *) item_list[0];
+        if (item_cond->functype() == Item_func::COND_AND_FUNC)
+        {
+          DBUG_PRINT("info",("spider item_cond is COND_AND_FUNC"));
+          List_iterator_fast<Item> lif(*(item_cond->argument_list()));
+          bool has_expr_cache_item = FALSE;
+          bool has_isnotnull_func = FALSE;
+          bool has_other_item = FALSE;
+          while((item = lif++))
+          {
+#ifdef SPIDER_HAS_EXPR_CACHE_ITEM
+            if (
+              item->type() == Item::EXPR_CACHE_ITEM
+            ) {
+              DBUG_PRINT("info",("spider EXPR_CACHE_ITEM"));
+              has_expr_cache_item = TRUE;
+            } else
+#endif
+            if (
+              item->type() == Item::FUNC_ITEM &&
+              ((Item_func *) item)->functype() == Item_func::ISNOTNULL_FUNC
+            ) {
+              DBUG_PRINT("info",("spider ISNOTNULL_FUNC"));
+              has_isnotnull_func = TRUE;
+            } else {
+              DBUG_PRINT("info",("spider has other item"));
+              DBUG_PRINT("info",("spider COND type=%d", item->type()));
+              has_other_item = TRUE;
+            }
+          }
+          if (has_expr_cache_item && has_isnotnull_func && !has_other_item)
+          {
+            DBUG_PRINT("info",("spider NOT EXISTS skip"));
+            DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+          }
+        }
+      }
+      if (str)
+      {
+        func_name = (char*) item_func->func_name();
+        func_name_length = strlen(func_name);
+        if (str->reserve(func_name_length + SPIDER_SQL_SPACE_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(func_name, func_name_length);
+        str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+      }
+      break;
+    case Item_func::NEG_FUNC:
+      if (str)
+      {
+        func_name = (char*) item_func->func_name();
+        func_name_length = strlen(func_name);
+        if (str->reserve(func_name_length + SPIDER_SQL_SPACE_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(func_name, func_name_length);
+        str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+      }
+      break;
+    case Item_func::IN_FUNC:
+      if (((Item_func_opt_neg *) item_func)->negated)
+      {
+        func_name = SPIDER_SQL_NOT_IN_STR;
+        func_name_length = SPIDER_SQL_NOT_IN_LEN;
+        separator_str = SPIDER_SQL_COMMA_STR;
+        separator_str_length = SPIDER_SQL_COMMA_LEN;
+        last_str = SPIDER_SQL_CLOSE_PAREN_STR;
+        last_str_length = SPIDER_SQL_CLOSE_PAREN_LEN;
+      } else {
+        func_name = SPIDER_SQL_IN_STR;
+        func_name_length = SPIDER_SQL_IN_LEN;
+        separator_str = SPIDER_SQL_COMMA_STR;
+        separator_str_length = SPIDER_SQL_COMMA_LEN;
+        last_str = SPIDER_SQL_CLOSE_PAREN_STR;
+        last_str_length = SPIDER_SQL_CLOSE_PAREN_LEN;
+      }
+      break;
+    case Item_func::BETWEEN:
+      if (((Item_func_opt_neg *) item_func)->negated)
+      {
+        func_name = SPIDER_SQL_NOT_BETWEEN_STR;
+        func_name_length = SPIDER_SQL_NOT_BETWEEN_LEN;
+        separator_str = SPIDER_SQL_AND_STR;
+        separator_str_length = SPIDER_SQL_AND_LEN;
+      } else {
+        func_name = (char*) item_func->func_name();
+        func_name_length = strlen(func_name);
+        separator_str = SPIDER_SQL_AND_STR;
+        separator_str_length = SPIDER_SQL_AND_LEN;
+      }
+      break;
+    case Item_func::UDF_FUNC:
+      use_pushdown_udf = spider_param_use_pushdown_udf(
+        spider->wide_handler->trx->thd,
+        spider->share->use_pushdown_udf);
+      if (!use_pushdown_udf)
+        DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+      if (str)
+      {
+        func_name = (char*) item_func->func_name();
+        func_name_length = strlen(func_name);
+        DBUG_PRINT("info",("spider func_name = %s", func_name));
+        DBUG_PRINT("info",("spider func_name_length = %d", func_name_length));
+        if (str->reserve(func_name_length + SPIDER_SQL_OPEN_PAREN_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(func_name, func_name_length);
+        str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+      }
+      func_name = SPIDER_SQL_COMMA_STR;
+      func_name_length = SPIDER_SQL_COMMA_LEN;
+      separator_str = SPIDER_SQL_COMMA_STR;
+      separator_str_length = SPIDER_SQL_COMMA_LEN;
+      last_str = SPIDER_SQL_CLOSE_PAREN_STR;
+      last_str_length = SPIDER_SQL_CLOSE_PAREN_LEN;
+      break;
+#ifdef MARIADB_BASE_VERSION
+    case Item_func::XOR_FUNC:
+#else
+    case Item_func::COND_XOR_FUNC:
+#endif
+      if (str)
+        str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+      DBUG_RETURN(
+        spider_db_open_item_cond((Item_cond *) item_func, spider, str,
+          alias, alias_length, dbton_id, use_fields, fields));
+    case Item_func::TRIG_COND_FUNC:
+      DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+    case Item_func::GUSERVAR_FUNC:
+      if (str)
+        str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+      if (item_func->result_type() == STRING_RESULT)
+        DBUG_RETURN(spider_db_open_item_string(item_func, NULL, spider, str,
+          alias, alias_length, dbton_id, use_fields, fields));
+      else
+        DBUG_RETURN(spider_db_open_item_int(item_func, NULL, spider, str,
+          alias, alias_length, dbton_id, use_fields, fields));
+    case Item_func::FT_FUNC:
+      if (spider_db_check_ft_idx(item_func, spider) == MAX_KEY)
+        DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+      start_item = 1;
+      if (str)
+      {
+        if (str->reserve(SPIDER_SQL_MATCH_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_MATCH_STR, SPIDER_SQL_MATCH_LEN);
+      }
+      separator_str = SPIDER_SQL_COMMA_STR;
+      separator_str_length = SPIDER_SQL_COMMA_LEN;
+      last_str = SPIDER_SQL_CLOSE_PAREN_STR;
+      last_str_length = SPIDER_SQL_CLOSE_PAREN_LEN;
+      break;
+    case Item_func::SP_EQUALS_FUNC:
+      if (str)
+      {
+        func_name = SPIDER_SQL_MBR_EQUAL_STR;
+        func_name_length = SPIDER_SQL_MBR_EQUAL_LEN;
+        DBUG_PRINT("info",("spider func_name = %s", func_name));
+        DBUG_PRINT("info",("spider func_name_length = %d", func_name_length));
+        if (str->reserve(func_name_length))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(func_name, func_name_length);
+      }
+      func_name = SPIDER_SQL_COMMA_STR;
+      func_name_length = SPIDER_SQL_COMMA_LEN;
+      separator_str = SPIDER_SQL_COMMA_STR;
+      separator_str_length = SPIDER_SQL_COMMA_LEN;
+      last_str = SPIDER_SQL_CLOSE_PAREN_STR;
+      last_str_length = SPIDER_SQL_CLOSE_PAREN_LEN;
+      break;
+    case Item_func::SP_DISJOINT_FUNC:
+    case Item_func::SP_INTERSECTS_FUNC:
+    case Item_func::SP_TOUCHES_FUNC:
+    case Item_func::SP_CROSSES_FUNC:
+    case Item_func::SP_WITHIN_FUNC:
+    case Item_func::SP_CONTAINS_FUNC:
+    case Item_func::SP_OVERLAPS_FUNC:
+      if (str)
+      {
+        func_name = (char*) item_func->func_name();
+        func_name_length = strlen(func_name);
+        DBUG_PRINT("info",("spider func_name = %s", func_name));
+        DBUG_PRINT("info",("spider func_name_length = %d", func_name_length));
+        if (str->reserve(
+#ifndef SPIDER_ITEM_GEOFUNC_NAME_HAS_MBR
+          SPIDER_SQL_MBR_LEN +
+#endif
+          func_name_length + SPIDER_SQL_OPEN_PAREN_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+#ifndef SPIDER_ITEM_GEOFUNC_NAME_HAS_MBR
+        str->q_append(SPIDER_SQL_MBR_STR, SPIDER_SQL_MBR_LEN);
+#endif
+        str->q_append(func_name, func_name_length);
+        str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+      }
+      func_name = SPIDER_SQL_COMMA_STR;
+      func_name_length = SPIDER_SQL_COMMA_LEN;
+      separator_str = SPIDER_SQL_COMMA_STR;
+      separator_str_length = SPIDER_SQL_COMMA_LEN;
+      last_str = SPIDER_SQL_CLOSE_PAREN_STR;
+      last_str_length = SPIDER_SQL_CLOSE_PAREN_LEN;
+      break;
+    case Item_func::EQ_FUNC:
+    case Item_func::EQUAL_FUNC:
+    case Item_func::NE_FUNC:
+    case Item_func::LT_FUNC:
+    case Item_func::LE_FUNC:
+    case Item_func::GE_FUNC:
+    case Item_func::GT_FUNC:
+      if (str)
+      {
+        func_name = (char*) item_func->func_name();
+        func_name_length = strlen(func_name);
+      }
+      break;
+    case Item_func::LIKE_FUNC:
+#ifdef SPIDER_LIKE_FUNC_HAS_GET_NEGATED
+      if (str)
+      {
+         if (((Item_func_like *)item_func)->get_negated())
+         {
+            func_name = SPIDER_SQL_NOT_LIKE_STR;
+            func_name_length = SPIDER_SQL_NOT_LIKE_LEN;
+         }
+         else
+         {
+            func_name = (char*)item_func->func_name();
+            func_name_length = strlen(func_name);
+         }
+      }
+      break;
+#else
+      DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+#endif
+    default:
+      THD *thd = spider->wide_handler->trx->thd;
+      SPIDER_SHARE *share = spider->share;
+      if (spider_param_skip_default_condition(thd,
+        share->skip_default_condition))
+        DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+      if (str)
+      {
+        func_name = (char*) item_func->func_name();
+        func_name_length = strlen(func_name);
+      }
+      break;
+  }
+  DBUG_PRINT("info",("spider func_name = %s", func_name));
+  DBUG_PRINT("info",("spider func_name_length = %d", func_name_length));
+  DBUG_PRINT("info",("spider separator_str = %s", separator_str));
+  DBUG_PRINT("info",("spider separator_str_length = %d", separator_str_length));
+  DBUG_PRINT("info",("spider last_str = %s", last_str));
+  DBUG_PRINT("info",("spider last_str_length = %d", last_str_length));
+  if (item_count)
+  {
+    /* Find the field in the list of items of the expression tree */
+    field = spider_db_find_field_in_item_list(item_list,
+                                              item_count, start_item,
+                                              str,
+                                              func_name, func_name_length);
+    item_count--;
+    for (roop_count = start_item; roop_count < item_count; roop_count++)
+    {
+      item = item_list[roop_count];
+      if ((error_num = spider_db_print_item_type(item, field, spider, str,
+        alias, alias_length, dbton_id, use_fields, fields)))
+        DBUG_RETURN(error_num);
+      if (roop_count == 1)
+      {
+        func_name = separator_str;
+        func_name_length = separator_str_length;
+      }
+      if (str)
+      {
+        if (str->reserve(func_name_length + SPIDER_SQL_SPACE_LEN * 2))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+        str->q_append(func_name, func_name_length);
+        str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+      }
+    }
+    item = item_list[roop_count];
+    if ((error_num = spider_db_print_item_type(item, field, spider, str,
+      alias, alias_length, dbton_id, use_fields, fields)))
+      DBUG_RETURN(error_num);
+  }
+  if (item_func->functype() == Item_func::FT_FUNC)
+  {
+    Item_func_match *item_func_match = (Item_func_match *)item_func;
+    if (str)
+    {
+      if (str->reserve(SPIDER_SQL_AGAINST_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_AGAINST_STR, SPIDER_SQL_AGAINST_LEN);
+    }
+    item = item_list[0];
+    if ((error_num = spider_db_print_item_type(item, NULL, spider, str,
+      alias, alias_length, dbton_id, use_fields, fields)))
+      DBUG_RETURN(error_num);
+    if (str)
+    {
+      if (str->reserve(
+        ((item_func_match->flags & FT_BOOL) ?
+          SPIDER_SQL_IN_BOOLEAN_MODE_LEN : 0) +
+        ((item_func_match->flags & FT_EXPAND) ?
+          SPIDER_SQL_WITH_QUERY_EXPANSION_LEN : 0)
+      ))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      if (item_func_match->flags & FT_BOOL)
+        str->q_append(SPIDER_SQL_IN_BOOLEAN_MODE_STR,
+          SPIDER_SQL_IN_BOOLEAN_MODE_LEN);
+      if (item_func_match->flags & FT_EXPAND)
+        str->q_append(SPIDER_SQL_WITH_QUERY_EXPANSION_STR,
+          SPIDER_SQL_WITH_QUERY_EXPANSION_LEN);
+    }
+  } else if (item_func->functype() == Item_func::UNKNOWN_FUNC)
+  {
+    if (
+      func_name_length == 7 &&
+      !strncasecmp("convert", func_name, func_name_length)
+    ) {
+      if (str)
+      {
+        Item_func_conv_charset *item_func_conv_charset =
+          (Item_func_conv_charset *)item_func;
+        CHARSET_INFO *conv_charset =
+          item_func_conv_charset->SPIDER_Item_func_conv_charset_conv_charset;
+        uint cset_length = strlen(conv_charset->csname);
+        if (str->reserve(SPIDER_SQL_USING_LEN + cset_length))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_USING_STR, SPIDER_SQL_USING_LEN);
+        str->q_append(conv_charset->csname, cset_length);
+      }
+    }
+  }
+  if (str)
+  {
+    if (merge_func)
+      str->length(str->length() - SPIDER_SQL_CLOSE_PAREN_LEN);
+    if (str->reserve(last_str_length + SPIDER_SQL_CLOSE_PAREN_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(last_str, last_str_length);
+    str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+  }
+  DBUG_RETURN(0);
+}
+
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+int spider_db_oracle_util::open_item_sum_func(
+  Item_sum *item_sum,
+  ha_spider *spider,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  bool use_fields,
+  spider_fields *fields
+) {
+  uint dbton_id = spider_dbton_oracle.dbton_id;
+  uint roop_count, item_count = item_sum->get_arg_count();
+  int error_num;
+  DBUG_ENTER("spider_db_oracle_util::open_item_sum_func");
+  DBUG_PRINT("info",("spider Sumfunctype = %d", item_sum->sum_func()));
+  switch (item_sum->sum_func())
+  {
+    case Item_sum::COUNT_FUNC:
+    case Item_sum::SUM_FUNC:
+    case Item_sum::MIN_FUNC:
+    case Item_sum::MAX_FUNC:
+      {
+        const char *func_name = item_sum->func_name();
+        uint func_name_length = strlen(func_name);
+        Item *item, **args = item_sum->get_args();
+        if (str)
+        {
+          if (str->reserve(func_name_length))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(func_name, func_name_length);
+        }
+        if (item_count)
+        {
+          item_count--;
+          for (roop_count = 0; roop_count < item_count; roop_count++)
+          {
+            item = args[roop_count];
+            if ((error_num = spider_db_print_item_type(item, NULL, spider, str,
+              alias, alias_length, dbton_id, use_fields, fields)))
+              DBUG_RETURN(error_num);
+            if (str)
+            {
+              if (str->reserve(SPIDER_SQL_COMMA_LEN))
+                DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+              str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+            }
+          }
+          item = args[roop_count];
+          if ((error_num = spider_db_print_item_type(item, NULL, spider, str,
+            alias, alias_length, dbton_id, use_fields, fields)))
+            DBUG_RETURN(error_num);
+        }
+        if (str)
+        {
+          if (str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+            SPIDER_SQL_CLOSE_PAREN_LEN);
+        }
+      }
+      break;
+    case Item_sum::COUNT_DISTINCT_FUNC:
+    case Item_sum::SUM_DISTINCT_FUNC:
+    case Item_sum::AVG_FUNC:
+    case Item_sum::AVG_DISTINCT_FUNC:
+    case Item_sum::STD_FUNC:
+    case Item_sum::VARIANCE_FUNC:
+    case Item_sum::SUM_BIT_FUNC:
+    case Item_sum::UDF_SUM_FUNC:
+    case Item_sum::GROUP_CONCAT_FUNC:
+    default:
+      DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+  }
+  DBUG_RETURN(0);
+}
+#endif
+
+size_t spider_db_oracle_util::escape_string(
+  char *to,
+  const char *from,
+  size_t from_length,
+  CHARSET_INFO *access_charset
+) {
+  DBUG_ENTER("spider_db_oracle::escape_string");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(escape_quotes_for_mysql(access_charset, to, 0,
+    from, from_length));
+}
+
+int spider_db_oracle_util::append_escaped_util(
+  spider_string *to,
+  String *from
+) {
+  size_t copy_length;
+  DBUG_ENTER("spider_db_oracle_util::append_escaped_util");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider to=%s", to->c_ptr_safe()));
+  DBUG_PRINT("info",("spider from=%s", from->c_ptr_safe()));
+  copy_length = escape_string((char *) to->ptr() + to->length(), from->ptr(),
+    from->length(), to->charset());
+  DBUG_PRINT("info",("spider copy_length=%zu", copy_length));
+  to->length(to->length() + copy_length);
+  to->mem_calc();
+  DBUG_RETURN(0);
+}
+
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+int spider_db_oracle_util::append_from_and_tables(
+  ha_spider *spider,
+  spider_fields *fields,
+  spider_string *str,
+  TABLE_LIST *table_list,
+  uint table_count
+) {
+  SPIDER_TABLE_HOLDER *table_holder;
+  int error_num;
+  uint dbton_id = spider_dbton_oracle.dbton_id, from_length;
+  spider_oracle_share *db_share;
+  spider_oracle_handler *dbton_hdl;
+  ha_spider *spider;
+  DBUG_ENTER("spider_db_oracle_util::append_from_and_tables");
+  DBUG_PRINT("info",("spider this=%p", this));
+
+  /* calculate from size */
+  from_length = SPIDER_SQL_FROM_LEN;
+  fields->set_pos_to_first_table_holder();
+  while ((table_holder = fields->get_next_table_holder()))
+  {
+    spider = table_holder->spider;
+    db_share = (spider_oracle_share *)
+      spider->share->dbton_share[dbton_id];
+    from_length +=
+      db_share->db_nm_max_length +
+      SPIDER_SQL_DOT_LEN + /* SPIDER_SQL_NAME_QUOTE_LEN */ 4 +
+      db_share->table_nm_max_length +
+      SPIDER_SQL_SPACE_LEN + SPIDER_SQL_COMMA_LEN +
+      table_holder->alias->length() - SPIDER_SQL_DOT_LEN;
+  }
+
+  if (str->reserve(from_length))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_FROM_STR, SPIDER_SQL_FROM_LEN);
+
+  fields->set_pos_to_first_table_holder();
+  while ((table_holder = fields->get_next_table_holder()))
+  {
+    spider = table_holder->spider;
+    db_share = (spider_oracle_share *)
+      spider->share->dbton_share[dbton_id];
+    dbton_hdl = (spider_oracle_handler *) spider->dbton_handler[dbton_id];
+    dbton_hdl->table_name_pos = str->length();
+    if ((error_num = db_share->append_table_name_with_adjusting(str,
+      spider->conn_link_idx[dbton_hdl->first_link_idx])))
+    {
+      DBUG_RETURN(error_num);
+    }
+    str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+    str->q_append(table_holder->alias->ptr(),
+      table_holder->alias->length() - SPIDER_SQL_DOT_LEN);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+  str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle_util::reappend_tables(
+  spider_fields *fields,
+  SPIDER_LINK_IDX_CHAIN *link_idx_chain,
+  spider_string *str
+) {
+  int error_num;
+  uint dbton_id = spider_dbton_oracle.dbton_id, length;
+  ha_spider *spider;
+  spider_oracle_share *db_share;
+  spider_oracle_handler *dbton_hdl;
+  SPIDER_TABLE_HOLDER *table_holder;
+  SPIDER_LINK_IDX_HOLDER *link_idx_holder;
+  DBUG_ENTER("spider_db_oracle_util::reappend_tables");
+  DBUG_PRINT("info",("spider this=%p", this));
+  length = str->length();
+  fields->set_pos_to_first_table_on_link_idx_chain(link_idx_chain);
+  fields->set_pos_to_first_table_holder();
+  while ((table_holder = fields->get_next_table_holder()))
+  {
+    link_idx_holder = fields->get_next_table_on_link_idx_chain(link_idx_chain);
+    spider = table_holder->spider;
+    db_share = (spider_oracle_share *)
+      spider->share->dbton_share[dbton_id];
+    if (!db_share->same_db_table_name)
+    {
+      dbton_hdl = (spider_oracle_handler *) spider->dbton_handler[dbton_id];
+      str->length(dbton_hdl->table_name_pos);
+      if ((error_num = db_share->append_table_name_with_adjusting(str,
+        spider->conn_link_idx[link_idx_holder->link_idx])))
+      {
+        DBUG_RETURN(error_num);
+      }
+    }
+  }
+  str->length(length);
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle_util::append_where(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_db_oracle_util::append_where");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_WHERE_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_WHERE_STR, SPIDER_SQL_WHERE_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_db_oracle_util::append_having(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_db_oracle_util::append_having");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_HAVING_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_HAVING_STR, SPIDER_SQL_HAVING_LEN);
+  DBUG_RETURN(0);
+}
+#endif
+
+spider_oracle_share::spider_oracle_share(
+  st_spider_share *share
+) : spider_db_share(
+  share,
+  spider_dbton_oracle.dbton_id
+),
+  table_select(NULL),
+  table_select_pos(0),
+  key_select(NULL),
+  key_select_pos(NULL),
+  key_hint(NULL),
+  show_table_status(NULL),
+  show_records(NULL),
+  show_autoinc(NULL),
+  show_last_insert_id(NULL),
+  show_index(NULL),
+  table_names_str(NULL),
+  db_names_str(NULL),
+  db_table_str(NULL),
+  nextval_str(NULL),
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  db_table_str_hash_value(NULL),
+#endif
+  table_nm_max_length(0),
+  db_nm_max_length(0),
+  nextval_max_length(0),
+  column_name_str(NULL),
+  same_db_table_name(TRUE),
+  first_all_link_idx(-1)
+{
+  DBUG_ENTER("spider_oracle_share::spider_oracle_share");
+  DBUG_PRINT("info",("spider this=%p", this));
+  spider_alloc_calc_mem_init(mem_calc, 220);
+  spider_alloc_calc_mem(spider_current_trx, mem_calc, sizeof(*this));
+  DBUG_VOID_RETURN;
+}
+
+spider_oracle_share::~spider_oracle_share()
+{
+  DBUG_ENTER("spider_oracle_share::~spider_oracle_share");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (table_select)
+    delete [] table_select;
+  if (key_select)
+    delete [] key_select;
+  if (key_hint)
+    delete [] key_hint;
+  free_show_table_status();
+  free_show_records();
+  free_show_autoinc();
+  free_show_last_insert_id();
+  free_show_index();
+  free_column_name_str();
+  free_table_names_str();
+  if (key_select_pos)
+  {
+    spider_free(spider_current_trx, key_select_pos, MYF(0));
+  }
+  spider_free_mem_calc(spider_current_trx, mem_calc_id, sizeof(*this));
+  DBUG_VOID_RETURN;
+}
+
+int spider_oracle_share::init()
+{
+  int error_num;
+  uint roop_count;
+  TABLE_SHARE *table_share = spider_share->table_share;
+  uint keys = table_share ? table_share->keys : 0;
+  DBUG_ENTER("spider_oracle_share::init");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!(key_select_pos = (int *)
+    spider_bulk_alloc_mem(spider_current_trx, 221,
+      __func__, __FILE__, __LINE__, MYF(MY_WME | MY_ZEROFILL),
+      &key_select_pos,
+        sizeof(int) * keys,
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+      &db_table_str_hash_value,
+        sizeof(my_hash_value_type) * spider_share->all_link_count,
+#endif
+      NullS))
+  ) {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+
+  if (keys > 0 &&
+    !(key_hint = new spider_string[keys])
+  ) {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  for (roop_count = 0; roop_count < keys; roop_count++)
+  {
+    key_hint[roop_count].init_calc_mem(190);
+    key_hint[roop_count].set_charset(spider_share->access_charset);
+  }
+  DBUG_PRINT("info",("spider key_hint=%p", key_hint));
+
+  if (
+    !(table_select = new spider_string[1]) ||
+    (keys > 0 &&
+      !(key_select = new spider_string[keys])
+    ) ||
+    (error_num = create_table_names_str()) ||
+    (table_share &&
+      (
+        (error_num = create_column_name_str()) ||
+        (error_num = convert_key_hint_str()) ||
+        (error_num = append_show_table_status()) ||
+        (error_num = append_show_records()) ||
+        (error_num = append_show_autoinc()) ||
+        (error_num = append_show_last_insert_id()) ||
+        (error_num = append_show_index())
+      )
+    )
+  ) {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+
+  table_select->init_calc_mem(191);
+  if (table_share && (error_num = append_table_select()))
+    DBUG_RETURN(error_num);
+
+  for (roop_count = 0; roop_count < keys; roop_count++)
+  {
+    key_select[roop_count].init_calc_mem(192);
+    if ((error_num = append_key_select(roop_count)))
+      DBUG_RETURN(error_num);
+  }
+
+  DBUG_RETURN(error_num);
+}
+
+uint spider_oracle_share::get_column_name_length(
+  uint field_index
+) {
+  DBUG_ENTER("spider_oracle_share::get_column_name_length");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(column_name_str[field_index].length());
+}
+
+int spider_oracle_share::append_column_name(
+  spider_string *str,
+  uint field_index
+) {
+  int error_num;
+  DBUG_ENTER("spider_oracle_share::append_column_name");
+  DBUG_PRINT("info",("spider this=%p", this));
+  error_num = spider_db_oracle_utility.append_name(str,
+    column_name_str[field_index].ptr(), column_name_str[field_index].length());
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_share::append_column_name_with_alias(
+  spider_string *str,
+  uint field_index,
+  const char *alias,
+  uint alias_length
+) {
+  DBUG_ENTER("spider_oracle_share::append_column_name_with_alias");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(
+    alias_length +
+    column_name_str[field_index].length() +
+    /* SPIDER_SQL_NAME_QUOTE_LEN */ 2))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(alias, alias_length);
+  append_column_name(str, field_index);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_share::append_table_name(
+  spider_string *str,
+  int all_link_idx
+) {
+  const char *db_nm = db_names_str[all_link_idx].ptr();
+  uint db_nm_len = db_names_str[all_link_idx].length();
+  const char *table_nm = table_names_str[all_link_idx].ptr();
+  uint table_nm_len = table_names_str[all_link_idx].length();
+  DBUG_ENTER("spider_oracle_share::append_table_name");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(db_nm_len + SPIDER_SQL_DOT_LEN + table_nm_len +
+    /* SPIDER_SQL_NAME_QUOTE_LEN */ 4))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  spider_db_oracle_utility.append_name(str, db_nm, db_nm_len);
+  str->q_append(SPIDER_SQL_DOT_STR, SPIDER_SQL_DOT_LEN);
+  spider_db_oracle_utility.append_name(str, table_nm, table_nm_len);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_share::append_table_name_with_adjusting(
+  spider_string *str,
+  int all_link_idx
+) {
+  const char *db_nm = db_names_str[all_link_idx].ptr();
+  uint db_nm_len = db_names_str[all_link_idx].length();
+  uint db_nm_max_len = db_nm_max_length;
+  const char *table_nm = table_names_str[all_link_idx].ptr();
+  uint table_nm_len = table_names_str[all_link_idx].length();
+  uint table_nm_max_len = table_nm_max_length;
+  DBUG_ENTER("spider_oracle_share::append_table_name_with_adjusting");
+  DBUG_PRINT("info",("spider this=%p", this));
+  spider_db_oracle_utility.append_name(str, db_nm, db_nm_len);
+  str->q_append(SPIDER_SQL_DOT_STR, SPIDER_SQL_DOT_LEN);
+  spider_db_oracle_utility.append_name(str, table_nm, table_nm_len);
+  uint length =
+    db_nm_max_len - db_nm_len +
+    table_nm_max_len - table_nm_len;
+  memset((char *) str->ptr() + str->length(), ' ', length);
+  str->length(str->length() + length);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_share::append_from_with_adjusted_table_name(
+  spider_string *str,
+  int *table_name_pos
+) {
+  const char *db_nm = db_names_str[0].ptr();
+  uint db_nm_len = db_names_str[0].length();
+  uint db_nm_max_len = db_nm_max_length;
+  const char *table_nm = table_names_str[0].ptr();
+  uint table_nm_len = table_names_str[0].length();
+  uint table_nm_max_len = table_nm_max_length;
+  DBUG_ENTER("spider_oracle_share::append_from_with_adjusted_table_name");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_FROM_LEN + db_nm_max_length +
+    SPIDER_SQL_DOT_LEN + table_nm_max_length +
+    /* SPIDER_SQL_NAME_QUOTE_LEN */ 4))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str->q_append(SPIDER_SQL_FROM_STR, SPIDER_SQL_FROM_LEN);
+  *table_name_pos = str->length();
+  spider_db_oracle_utility.append_name(str, db_nm, db_nm_len);
+  str->q_append(SPIDER_SQL_DOT_STR, SPIDER_SQL_DOT_LEN);
+  spider_db_oracle_utility.append_name(str, table_nm, table_nm_len);
+  uint length =
+    db_nm_max_len - db_nm_len +
+    table_nm_max_len - table_nm_len;
+  memset((char *) str->ptr() + str->length(), ' ', length);
+  str->length(str->length() + length);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_share::create_table_names_str()
+{
+  int error_num, roop_count;
+  uint table_nm_len, db_nm_len;
+  spider_string *str, *first_tbl_nm_str, *first_db_nm_str, *first_db_tbl_str;
+  char *first_tbl_nm, *first_db_nm;
+  uint dbton_id = spider_dbton_oracle.dbton_id;
+  DBUG_ENTER("spider_oracle_share::create_table_names_str");
+  table_names_str = NULL;
+  db_names_str = NULL;
+  db_table_str = NULL;
+  if (
+    !(table_names_str = new spider_string[spider_share->all_link_count]) ||
+    !(db_names_str = new spider_string[spider_share->all_link_count]) ||
+    !(db_table_str = new spider_string[spider_share->all_link_count])
+  ) {
+    error_num = HA_ERR_OUT_OF_MEM;
+    goto error;
+  }
+
+  same_db_table_name = TRUE;
+  first_tbl_nm = spider_share->tgt_table_names[0];
+  first_db_nm = spider_share->tgt_dbs[0];
+  table_nm_len = spider_share->tgt_table_names_lengths[0];
+  db_nm_len = spider_share->tgt_dbs_lengths[0];
+  first_tbl_nm_str = &table_names_str[0];
+  first_db_nm_str = &db_names_str[0];
+  first_db_tbl_str = &db_table_str[0];
+  for (roop_count = 0; roop_count < (int) spider_share->all_link_count;
+    roop_count++)
+  {
+    table_names_str[roop_count].init_calc_mem(193);
+    db_names_str[roop_count].init_calc_mem(194);
+    db_table_str[roop_count].init_calc_mem(195);
+    if (spider_share->sql_dbton_ids[roop_count] != dbton_id)
+      continue;
+    if (first_all_link_idx == -1)
+      first_all_link_idx = roop_count;
+
+    str = &table_names_str[roop_count];
+    if (
+      roop_count != 0 &&
+      same_db_table_name &&
+      spider_share->tgt_table_names_lengths[roop_count] == table_nm_len &&
+      !memcmp(first_tbl_nm, spider_share->tgt_table_names[roop_count],
+        table_nm_len)
+    ) {
+      if (str->copy(*first_tbl_nm_str))
+      {
+        error_num = HA_ERR_OUT_OF_MEM;
+        goto error;
+      }
+    } else {
+      str->set_charset(spider_share->access_charset);
+      if ((error_num = spider_db_append_name_with_quote_str(str,
+        spider_share->tgt_table_names[roop_count], dbton_id)))
+        goto error;
+      if (roop_count)
+      {
+        same_db_table_name = FALSE;
+        DBUG_PRINT("info", ("spider found different table name %s",
+          spider_share->tgt_table_names[roop_count]));
+        if (str->length() > table_nm_max_length)
+          table_nm_max_length = str->length();
+      } else
+        table_nm_max_length = str->length();
+    }
+
+    str = &db_names_str[roop_count];
+    if (
+      roop_count != 0 &&
+      same_db_table_name &&
+      spider_share->tgt_dbs_lengths[roop_count] == db_nm_len &&
+      !memcmp(first_db_nm, spider_share->tgt_dbs[roop_count],
+        db_nm_len)
+    ) {
+      if (str->copy(*first_db_nm_str))
+      {
+        error_num = HA_ERR_OUT_OF_MEM;
+        goto error;
+      }
+    } else {
+      str->set_charset(spider_share->access_charset);
+      if ((error_num = spider_db_append_name_with_quote_str(str,
+        spider_share->tgt_dbs[roop_count], dbton_id)))
+        goto error;
+      if (roop_count)
+      {
+        same_db_table_name = FALSE;
+        DBUG_PRINT("info", ("spider found different db name %s",
+          spider_share->tgt_dbs[roop_count]));
+        if (str->length() > db_nm_max_length)
+          db_nm_max_length = str->length();
+      } else
+        db_nm_max_length = str->length();
+    }
+
+    str = &db_table_str[roop_count];
+    if (
+      roop_count != 0 &&
+      same_db_table_name
+    ) {
+      if (str->copy(*first_db_tbl_str))
+      {
+        error_num = HA_ERR_OUT_OF_MEM;
+        goto error;
+      }
+    } else {
+      str->set_charset(spider_share->access_charset);
+      if ((error_num = append_table_name(str, roop_count)))
+        goto error;
+    }
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+    db_table_str_hash_value[roop_count] = my_calc_hash(
+      &spider_open_connections, (uchar*) str->ptr(), str->length());
+#endif
+  }
+  DBUG_RETURN(0);
+
+error:
+  if (db_table_str)
+  {
+    delete [] db_table_str;
+    db_table_str = NULL;
+  }
+  if (db_names_str)
+  {
+    delete [] db_names_str;
+    db_names_str = NULL;
+  }
+  if (table_names_str)
+  {
+    delete [] table_names_str;
+    table_names_str = NULL;
+  }
+  DBUG_RETURN(error_num);
+}
+
+void spider_oracle_share::free_table_names_str()
+{
+  DBUG_ENTER("spider_oracle_share::free_table_names_str");
+  if (db_table_str)
+  {
+    delete [] db_table_str;
+    db_table_str = NULL;
+  }
+  if (db_names_str)
+  {
+    delete [] db_names_str;
+    db_names_str = NULL;
+  }
+  if (table_names_str)
+  {
+    delete [] table_names_str;
+    table_names_str = NULL;
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_oracle_share::create_column_name_str()
+{
+  spider_string *str;
+  int error_num;
+  Field **field;
+  TABLE_SHARE *table_share = spider_share->table_share;
+  uint dbton_id = spider_dbton_oracle.dbton_id;
+  DBUG_ENTER("spider_oracle_share::create_column_name_str");
+  if (
+    table_share->fields &&
+    !(column_name_str = new spider_string[table_share->fields])
+  )
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  for (field = table_share->field, str = column_name_str;
+   *field; field++, str++)
+  {
+    str->init_calc_mem(196);
+    str->set_charset(spider_share->access_charset);
+    if ((error_num = spider_db_append_name_with_quote_str(str,
+      (*field)->field_name, dbton_id)))
+      goto error;
+  }
+  DBUG_RETURN(0);
+
+error:
+  if (column_name_str)
+  {
+    delete [] column_name_str;
+    column_name_str = NULL;
+  }
+  DBUG_RETURN(error_num);
+}
+
+void spider_oracle_share::free_column_name_str()
+{
+  DBUG_ENTER("spider_oracle_share::free_column_name_str");
+  if (column_name_str)
+  {
+    delete [] column_name_str;
+    column_name_str = NULL;
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_oracle_share::convert_key_hint_str()
+{
+  spider_string *tmp_key_hint;
+  int roop_count;
+  TABLE_SHARE *table_share = spider_share->table_share;
+  DBUG_ENTER("spider_oracle_share::convert_key_hint_str");
+  if (spider_share->access_charset->cset != system_charset_info->cset)
+  {
+    /* need conversion */
+    for (roop_count = 0, tmp_key_hint = key_hint;
+      roop_count < (int) table_share->keys; roop_count++, tmp_key_hint++)
+    {
+      tmp_key_hint->length(0);
+      if (tmp_key_hint->append(spider_share->key_hint->ptr(),
+        spider_share->key_hint->length(), system_charset_info))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+  } else {
+    for (roop_count = 0, tmp_key_hint = key_hint;
+      roop_count < (int) table_share->keys; roop_count++, tmp_key_hint++)
+    {
+      if (tmp_key_hint->copy(spider_share->key_hint[roop_count]))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_share::append_show_table_status()
+{
+  int roop_count;
+  spider_string *str;
+  uint dbton_id = spider_dbton_oracle.dbton_id;
+  DBUG_ENTER("spider_oracle_append_show_table_status");
+  if (!(show_table_status =
+    new spider_string[2 * spider_share->all_link_count]))
+    goto error;
+
+  for (roop_count = 0; roop_count < (int) spider_share->all_link_count;
+    roop_count++)
+  {
+    show_table_status[0 + (2 * roop_count)].init_calc_mem(197);
+    show_table_status[1 + (2 * roop_count)].init_calc_mem(207);
+    if (spider_share->sql_dbton_ids[roop_count] != dbton_id)
+      continue;
+
+    if (
+      show_table_status[0 + (2 * roop_count)].reserve(
+        SPIDER_SQL_SHOW_TABLE_STATUS_LEN +
+        db_names_str[roop_count].length() +
+        SPIDER_SQL_LIKE_LEN + table_names_str[roop_count].length() +
+        ((SPIDER_SQL_NAME_QUOTE_LEN) * 2) +
+        ((SPIDER_SQL_VALUE_QUOTE_LEN) * 2)) ||
+      show_table_status[1 + (2 * roop_count)].reserve(
+        SPIDER_SQL_SELECT_TABLES_STATUS_LEN +
+        db_names_str[roop_count].length() +
+        SPIDER_SQL_AND_LEN + SPIDER_SQL_TABLE_NAME_LEN + SPIDER_SQL_EQUAL_LEN +
+        table_names_str[roop_count].length() +
+        ((SPIDER_SQL_VALUE_QUOTE_LEN) * 4))
+    )
+      goto error;
+    str = &show_table_status[0 + (2 * roop_count)];
+    str->q_append(
+      SPIDER_SQL_SHOW_TABLE_STATUS_STR, SPIDER_SQL_SHOW_TABLE_STATUS_LEN);
+    str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+    str->q_append(db_names_str[roop_count].ptr(),
+      db_names_str[roop_count].length());
+    str->q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+    str->q_append(SPIDER_SQL_LIKE_STR, SPIDER_SQL_LIKE_LEN);
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    str->q_append(table_names_str[roop_count].ptr(),
+      table_names_str[roop_count].length());
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    str = &show_table_status[1 + (2 * roop_count)];
+    str->q_append(
+      SPIDER_SQL_SELECT_TABLES_STATUS_STR,
+      SPIDER_SQL_SELECT_TABLES_STATUS_LEN);
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    str->q_append(db_names_str[roop_count].ptr(),
+      db_names_str[roop_count].length());
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    str->q_append(SPIDER_SQL_AND_STR, SPIDER_SQL_AND_LEN);
+    str->q_append(SPIDER_SQL_TABLE_NAME_STR, SPIDER_SQL_TABLE_NAME_LEN);
+    str->q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    str->q_append(table_names_str[roop_count].ptr(),
+      table_names_str[roop_count].length());
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+  }
+  DBUG_RETURN(0);
+
+error:
+  if (show_table_status)
+  {
+    delete [] show_table_status;
+    show_table_status = NULL;
+  }
+  DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+}
+
+void spider_oracle_share::free_show_table_status()
+{
+  DBUG_ENTER("spider_oracle_free_show_table_status");
+  if (show_table_status)
+  {
+    delete [] show_table_status;
+    show_table_status = NULL;
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_oracle_share::append_show_records()
+{
+  int roop_count;
+  spider_string *str;
+  uint dbton_id = spider_dbton_oracle.dbton_id;
+  DBUG_ENTER("spider_oracle_share::append_show_records");
+  if (!(show_records = new spider_string[spider_share->all_link_count]))
+    goto error;
+
+  for (roop_count = 0; roop_count < (int) spider_share->all_link_count;
+    roop_count++)
+  {
+    show_records[roop_count].init_calc_mem(208);
+    if (spider_share->sql_dbton_ids[roop_count] != dbton_id)
+      continue;
+
+    if (
+      show_records[roop_count].reserve(
+        SPIDER_SQL_SHOW_RECORDS_LEN +
+        db_names_str[roop_count].length() +
+        SPIDER_SQL_DOT_LEN +
+        table_names_str[roop_count].length() +
+        /* SPIDER_SQL_NAME_QUOTE_LEN */ 4)
+    )
+      goto error;
+    str = &show_records[roop_count];
+    str->q_append(SPIDER_SQL_SHOW_RECORDS_STR, SPIDER_SQL_SHOW_RECORDS_LEN);
+    append_table_name(str, roop_count);
+  }
+  DBUG_RETURN(0);
+
+error:
+  if (show_records)
+  {
+    delete [] show_records;
+    show_records = NULL;
+  }
+  DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+}
+
+void spider_oracle_share::free_show_records()
+{
+  DBUG_ENTER("spider_oracle_share::free_show_records");
+  if (show_records)
+  {
+    delete [] show_records;
+    show_records = NULL;
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_oracle_share::append_show_autoinc()
+{
+  uint roop_count, field_length;
+  spider_string *str;
+  uint dbton_id = spider_dbton_oracle.dbton_id;
+  Field **found_next_number_field =
+    spider_share->table_share->found_next_number_field;
+  DBUG_ENTER("spider_oracle_share::append_show_autoinc");
+  if (!found_next_number_field)
+    DBUG_RETURN(0);
+
+  if (!(show_autoinc = new spider_string[spider_share->all_link_count]))
+    goto error;
+
+  field_length =
+    column_name_str[(*found_next_number_field)->field_index].length();
+  for (roop_count = 0; roop_count < spider_share->all_link_count;
+    roop_count++)
+  {
+    show_autoinc[roop_count].init_calc_mem(224);
+    if (spider_share->sql_dbton_ids[roop_count] != dbton_id)
+      continue;
+
+    if (
+      show_autoinc[roop_count].reserve(
+        SPIDER_SQL_SELECT_LEN +
+        SPIDER_SQL_MAX_LEN +
+        SPIDER_SQL_OPEN_PAREN_LEN +
+        field_length +
+        SPIDER_SQL_CLOSE_PAREN_LEN +
+        SPIDER_SQL_FROM_LEN +
+        db_names_str[roop_count].length() +
+        SPIDER_SQL_DOT_LEN +
+        table_names_str[roop_count].length() +
+        /* SPIDER_SQL_NAME_QUOTE_LEN */ 6)
+    )
+      goto error;
+    str = &show_autoinc[roop_count];
+    str->q_append(SPIDER_SQL_SELECT_STR, SPIDER_SQL_SELECT_LEN);
+    str->q_append(SPIDER_SQL_MAX_STR, SPIDER_SQL_MAX_LEN);
+    str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+    append_column_name(str, (*found_next_number_field)->field_index);
+    str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+    str->q_append(SPIDER_SQL_FROM_STR, SPIDER_SQL_FROM_LEN);
+    append_table_name(str, roop_count);
+  }
+  DBUG_RETURN(0);
+
+error:
+  if (show_autoinc)
+  {
+    delete [] show_autoinc;
+    show_autoinc = NULL;
+  }
+  DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+}
+
+void spider_oracle_share::free_show_autoinc()
+{
+  DBUG_ENTER("spider_oracle_share::free_show_autoinc");
+  if (show_autoinc)
+  {
+    delete [] show_autoinc;
+    show_autoinc = NULL;
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_oracle_share::append_show_last_insert_id()
+{
+  uint roop_count;
+  spider_string *str;
+  uint dbton_id = spider_dbton_oracle.dbton_id;
+  Field **found_next_number_field =
+    spider_share->table_share->found_next_number_field;
+  uint seq_nm_max_length = 0;
+  DBUG_ENTER("spider_oracle_share::append_show_last_insert_id");
+  if (!found_next_number_field)
+    DBUG_RETURN(0);
+
+  if (
+    !(show_last_insert_id = new spider_string[spider_share->all_link_count]) ||
+    !(nextval_str = new spider_string[spider_share->all_link_count])
+  )
+    goto error;
+
+  for (roop_count = 0; roop_count < spider_share->all_link_count;
+    roop_count++)
+  {
+    show_last_insert_id[roop_count].init_calc_mem(225);
+    nextval_str[roop_count].init_calc_mem(226);
+    if (spider_share->sql_dbton_ids[roop_count] != dbton_id)
+      continue;
+
+    if (
+      show_last_insert_id[roop_count].reserve(
+        SPIDER_SQL_SELECT_LEN +
+        spider_share->tgt_sequence_names_lengths[roop_count] + 
+        SPIDER_SQL_CURRVAL_LEN +
+        SPIDER_SQL_FROM_DUAL_LEN +
+        /* SPIDER_SQL_NAME_QUOTE_LEN */ 2)
+    )
+      goto error;
+    str = &show_last_insert_id[roop_count];
+    str->q_append(SPIDER_SQL_SELECT_STR, SPIDER_SQL_SELECT_LEN);
+    spider_db_oracle_utility.append_name(str,
+      spider_share->tgt_sequence_names[roop_count],
+      spider_share->tgt_sequence_names_lengths[roop_count]);
+    str->q_append(SPIDER_SQL_CURRVAL_STR, SPIDER_SQL_CURRVAL_LEN);
+    str->q_append(SPIDER_SQL_FROM_DUAL_STR, SPIDER_SQL_FROM_DUAL_LEN);
+
+    if (seq_nm_max_length <
+      spider_share->tgt_sequence_names_lengths[roop_count])
+    {
+      seq_nm_max_length =
+        spider_share->tgt_sequence_names_lengths[roop_count];
+    }
+  }
+  for (roop_count = 0; roop_count < spider_share->all_link_count;
+    roop_count++)
+  {
+    if (spider_share->sql_dbton_ids[roop_count] != dbton_id)
+      continue;
+
+    if (
+      nextval_str[roop_count].reserve(
+        seq_nm_max_length +
+        SPIDER_SQL_NEXTVAL_LEN +
+        /* SPIDER_SQL_NAME_QUOTE_LEN */ 2)
+    )
+      goto error;
+    str = &nextval_str[roop_count];
+    spider_db_oracle_utility.append_name(str,
+      spider_share->tgt_sequence_names[roop_count],
+      spider_share->tgt_sequence_names_lengths[roop_count]);
+    str->q_append(SPIDER_SQL_NEXTVAL_STR, SPIDER_SQL_NEXTVAL_LEN);
+    uint length =
+      seq_nm_max_length - spider_share->tgt_sequence_names_lengths[roop_count];
+    memset((char *) str->ptr() + str->length(), ' ', length);
+    str->length(str->length() + length);
+    nextval_max_length = str->length();
+  }
+  DBUG_RETURN(0);
+
+error:
+  if (show_last_insert_id)
+  {
+    delete [] show_last_insert_id;
+    show_last_insert_id = NULL;
+  }
+  if (nextval_str)
+  {
+    delete [] nextval_str;
+    nextval_str = NULL;
+  }
+  DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+}
+
+void spider_oracle_share::free_show_last_insert_id()
+{
+  DBUG_ENTER("spider_oracle_share::free_show_last_insert_id");
+  if (show_last_insert_id)
+  {
+    delete [] show_last_insert_id;
+    show_last_insert_id = NULL;
+  }
+  if (nextval_str)
+  {
+    delete [] nextval_str;
+    nextval_str = NULL;
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_oracle_share::append_show_index()
+{
+  int roop_count;
+  spider_string *str;
+  uint dbton_id = spider_dbton_oracle.dbton_id;
+  DBUG_ENTER("spider_oracle_share::append_show_index");
+  if (!(show_index = new spider_string[2 * spider_share->all_link_count]))
+    goto error;
+
+  for (roop_count = 0; roop_count < (int) spider_share->all_link_count;
+    roop_count++)
+  {
+    show_index[0 + (2 * roop_count)].init_calc_mem(209);
+    show_index[1 + (2 * roop_count)].init_calc_mem(210);
+    if (spider_share->sql_dbton_ids[roop_count] != dbton_id)
+      continue;
+
+    if (
+      show_index[0 + (2 * roop_count)].reserve(
+        SPIDER_SQL_SHOW_INDEX_LEN + db_names_str[roop_count].length() +
+        SPIDER_SQL_DOT_LEN +
+        table_names_str[roop_count].length() +
+        /* SPIDER_SQL_NAME_QUOTE_LEN */ 4) ||
+      show_index[1 + (2 * roop_count)].reserve(
+        SPIDER_SQL_SELECT_STATISTICS_LEN +
+        db_names_str[roop_count].length() +
+        SPIDER_SQL_AND_LEN + SPIDER_SQL_TABLE_NAME_LEN + SPIDER_SQL_EQUAL_LEN +
+        table_names_str[roop_count].length() +
+        ((SPIDER_SQL_VALUE_QUOTE_LEN) * 4) +
+        SPIDER_SQL_GROUP_LEN + SPIDER_SQL_COLUMN_NAME_LEN)
+    )
+      goto error;
+    str = &show_index[0 + (2 * roop_count)];
+    str->q_append(
+      SPIDER_SQL_SHOW_INDEX_STR, SPIDER_SQL_SHOW_INDEX_LEN);
+    append_table_name(str, roop_count);
+    str = &show_index[1 + (2 * roop_count)];
+    str->q_append(
+      SPIDER_SQL_SELECT_STATISTICS_STR, SPIDER_SQL_SELECT_STATISTICS_LEN);
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    str->q_append(db_names_str[roop_count].ptr(),
+      db_names_str[roop_count].length());
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    str->q_append(SPIDER_SQL_AND_STR, SPIDER_SQL_AND_LEN);
+    str->q_append(SPIDER_SQL_TABLE_NAME_STR, SPIDER_SQL_TABLE_NAME_LEN);
+    str->q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    str->q_append(table_names_str[roop_count].ptr(),
+      table_names_str[roop_count].length());
+    str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+    str->q_append(SPIDER_SQL_GROUP_STR, SPIDER_SQL_GROUP_LEN);
+    str->q_append(SPIDER_SQL_COLUMN_NAME_STR, SPIDER_SQL_COLUMN_NAME_LEN);
+  }
+  DBUG_RETURN(0);
+
+error:
+  if (show_index)
+  {
+    delete [] show_index;
+    show_index = NULL;
+  }
+  DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+}
+
+void spider_oracle_share::free_show_index()
+{
+  DBUG_ENTER("spider_oracle_share::free_show_index");
+  if (show_index)
+  {
+    delete [] show_index;
+    show_index = NULL;
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_oracle_share::append_table_select()
+{
+  Field **field;
+  uint field_length;
+  spider_string *str = table_select;
+  TABLE_SHARE *table_share = spider_share->table_share;
+  DBUG_ENTER("spider_oracle_share::append_table_select");
+
+  if (!*table_share->field)
+    DBUG_RETURN(0);
+
+  for (field = table_share->field; *field; field++)
+  {
+    field_length = column_name_str[(*field)->field_index].length();
+    if (str->reserve(field_length +
+      /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_COMMA_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    append_column_name(str, (*field)->field_index);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+  str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  DBUG_RETURN(append_from_with_adjusted_table_name(str, &table_select_pos));
+}
+
+int spider_oracle_share::append_key_select(
+  uint idx
+) {
+  KEY_PART_INFO *key_part;
+  Field *field;
+  uint part_num;
+  uint field_length;
+  spider_string *str = &key_select[idx];
+  TABLE_SHARE *table_share = spider_share->table_share;
+  const KEY *key_info = &table_share->key_info[idx];
+  DBUG_ENTER("spider_oracle_share::append_key_select");
+
+  if (!spider_user_defined_key_parts(key_info))
+    DBUG_RETURN(0);
+
+  for (key_part = key_info->key_part, part_num = 0;
+    part_num < spider_user_defined_key_parts(key_info); key_part++, part_num++)
+  {
+    field = key_part->field;
+    field_length = column_name_str[field->field_index].length();
+    if (str->reserve(field_length +
+      /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_COMMA_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    append_column_name(str, field->field_index);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+  str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  DBUG_RETURN(append_from_with_adjusted_table_name(str, &key_select_pos[idx]));
+}
+
+bool spider_oracle_share::need_change_db_table_name()
+{
+  DBUG_ENTER("spider_oracle_share::need_change_db_table_name");
+  DBUG_RETURN(!same_db_table_name);
+}
+
+#ifdef SPIDER_HAS_DISCOVER_TABLE_STRUCTURE
+int spider_oracle_share::discover_table_structure(
+  SPIDER_TRX *trx,
+  SPIDER_SHARE *spider_share,
+  spider_string *str
+) {
+  DBUG_ENTER("spider_oracle_share::discover_table_structure");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(HA_ERR_WRONG_COMMAND);
+}
+#endif
+
+spider_oracle_handler::spider_oracle_handler(
+  ha_spider *spider,
+  spider_oracle_share *db_share
+) : spider_db_handler(
+  spider,
+  db_share
+),
+  where_pos(0),
+  order_pos(0),
+  limit_pos(0),
+  table_name_pos(0),
+  update_set_pos(0),
+  ha_read_pos(0),
+  ha_next_pos(0),
+  ha_where_pos(0),
+  ha_limit_pos(0),
+  ha_table_name_pos(0),
+  insert_pos(0),
+  insert_table_name_pos(0),
+  upd_tmp_tbl(NULL),
+  tmp_sql_pos1(0),
+  tmp_sql_pos2(0),
+  tmp_sql_pos3(0),
+  tmp_sql_pos4(0),
+  tmp_sql_pos5(0),
+  table_lock_mode(0),
+  reading_from_bulk_tmp_table(FALSE),
+  filled_up(FALSE),
+  select_rownum_appended(FALSE),
+  update_rownum_appended(FALSE),
+  union_table_name_pos_first(NULL),
+  union_table_name_pos_current(NULL),
+  oracle_share(db_share),
+  link_for_hash(NULL)
+{
+  DBUG_ENTER("spider_oracle_handler::spider_oracle_handler");
+  DBUG_PRINT("info",("spider this=%p", this));
+  spider_alloc_calc_mem_init(mem_calc, 222);
+  spider_alloc_calc_mem(spider_current_trx, mem_calc, sizeof(*this));
+  DBUG_VOID_RETURN;
+}
+
+spider_oracle_handler::~spider_oracle_handler()
+{
+  DBUG_ENTER("spider_oracle_handler::~spider_oracle_handler");
+  DBUG_PRINT("info",("spider this=%p", this));
+  while (union_table_name_pos_first)
+  {
+    SPIDER_INT_HLD *tmp_pos = union_table_name_pos_first;
+    union_table_name_pos_first = tmp_pos->next;
+    spider_free(spider_current_trx, tmp_pos, MYF(0));
+  }
+  if (link_for_hash)
+  {
+    spider_free(spider_current_trx, link_for_hash, MYF(0));
+  }
+  spider_free_mem_calc(spider_current_trx, mem_calc_id, sizeof(*this));
+  DBUG_VOID_RETURN;
+}
+
+int spider_oracle_handler::init()
+{
+  uint roop_count;
+  THD *thd = spider->wide_handler->trx->thd;
+  st_spider_share *share = spider->share;
+  int init_sql_alloc_size =
+    spider_param_init_sql_alloc_size(thd, share->init_sql_alloc_size);
+  TABLE *table = spider->get_table();
+  DBUG_ENTER("spider_oracle_handler::init");
+  DBUG_PRINT("info",("spider this=%p", this));
+  sql.init_calc_mem(67);
+  sql_part.init_calc_mem(68);
+  sql_part2.init_calc_mem(69);
+  ha_sql.init_calc_mem(70);
+  insert_sql.init_calc_mem(72);
+  update_sql.init_calc_mem(73);
+  tmp_sql.init_calc_mem(74);
+  dup_update_sql.init_calc_mem(167);
+  if (
+    (sql.real_alloc(init_sql_alloc_size)) ||
+    (insert_sql.real_alloc(init_sql_alloc_size)) ||
+    (update_sql.real_alloc(init_sql_alloc_size)) ||
+    (tmp_sql.real_alloc(init_sql_alloc_size))
+  ) {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  sql.set_charset(share->access_charset);
+  sql_part.set_charset(share->access_charset);
+  sql_part2.set_charset(share->access_charset);
+  ha_sql.set_charset(share->access_charset);
+  insert_sql.set_charset(share->access_charset);
+  update_sql.set_charset(share->access_charset);
+  tmp_sql.set_charset(share->access_charset);
+  dup_update_sql.set_charset(share->access_charset);
+  upd_tmp_tbl_prm.init();
+  upd_tmp_tbl_prm.field_count = 1;
+  if (!(link_for_hash = (SPIDER_LINK_FOR_HASH *)
+    spider_bulk_alloc_mem(spider_current_trx, 223,
+      __func__, __FILE__, __LINE__, MYF(MY_WME | MY_ZEROFILL),
+      &link_for_hash,
+        sizeof(SPIDER_LINK_FOR_HASH) * share->link_count,
+      &minimum_select_bitmap,
+        table ? sizeof(uchar) * no_bytes_in_map(table->read_set) : 0,
+      NullS))
+  ) {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  for (roop_count = 0; roop_count < share->link_count; roop_count++)
+  {
+    link_for_hash[roop_count].spider = spider;
+    link_for_hash[roop_count].link_idx = roop_count;
+    link_for_hash[roop_count].db_table_str =
+      &oracle_share->db_table_str[roop_count];
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+    link_for_hash[roop_count].db_table_str_hash_value =
+      oracle_share->db_table_str_hash_value[roop_count];
+#endif
+  }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  hs_upds.init();
+#endif
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_index_hint(
+  spider_string *str,
+  int link_idx,
+  ulong sql_type
+  ) 
+{
+  DBUG_ENTER("spider_oracle_handler::append_index_hint");
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_table_name_with_adjusting(
+  spider_string *str,
+  int link_idx,
+  ulong sql_type
+) {
+  int error_num = 0;
+  DBUG_ENTER("spider_oracle_handler::append_table_name_with_adjusting");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql_type == SPIDER_SQL_TYPE_HANDLER)
+  {
+    str->q_append(spider->m_handler_cid[link_idx], SPIDER_SQL_HANDLER_CID_LEN);
+  } else {
+    error_num = oracle_share->append_table_name_with_adjusting(str,
+      spider->conn_link_idx[link_idx]);
+  }
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_key_column_types(
+  const key_range *start_key,
+  spider_string *str
+) {
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  KEY *key_info = result_list->key_info;
+  uint key_name_length, key_count;
+  key_part_map full_key_part_map =
+    make_prev_keypart_map(spider_user_defined_key_parts(key_info));
+  key_part_map start_key_part_map;
+  KEY_PART_INFO *key_part;
+  Field *field;
+  char tmp_buf[MAX_FIELD_WIDTH];
+  spider_string tmp_str(tmp_buf, sizeof(tmp_buf), system_charset_info);
+  DBUG_ENTER("spider_oracle_handler::append_key_column_types");
+  DBUG_PRINT("info",("spider this=%p", this));
+  tmp_str.init_calc_mem(227);
+
+  start_key_part_map = start_key->keypart_map & full_key_part_map;
+  DBUG_PRINT("info", ("spider spider_user_defined_key_parts=%u",
+    spider_user_defined_key_parts(key_info)));
+  DBUG_PRINT("info", ("spider full_key_part_map=%lu", full_key_part_map));
+  DBUG_PRINT("info", ("spider start_key_part_map=%lu", start_key_part_map));
+
+  if (!start_key_part_map)
+    DBUG_RETURN(0);
+
+  for (
+    key_part = key_info->key_part,
+    key_count = 0;
+    start_key_part_map;
+    start_key_part_map >>= 1,
+    key_part++,
+    key_count++
+  ) {
+    field = key_part->field;
+    key_name_length = my_sprintf(tmp_buf, (tmp_buf, "c%u", key_count));
+    if (str->reserve(key_name_length + SPIDER_SQL_SPACE_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(tmp_buf, key_name_length);
+    str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+
+    if (tmp_str.ptr() != tmp_buf)
+      tmp_str.set(tmp_buf, sizeof(tmp_buf), system_charset_info);
+    else
+      tmp_str.set_charset(system_charset_info);
+    field->sql_type(*tmp_str.get_str());
+    tmp_str.mem_calc();
+    str->append(tmp_str);
+
+    if (str->reserve(SPIDER_SQL_COMMA_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+  str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_key_join_columns_for_bka(
+  const key_range *start_key,
+  spider_string *str,
+  const char **table_aliases,
+  uint *table_alias_lengths
+) {
+  KEY *key_info = spider->result_list.key_info;
+  uint length, key_name_length, key_count;
+  key_part_map full_key_part_map =
+    make_prev_keypart_map(spider_user_defined_key_parts(key_info));
+  key_part_map start_key_part_map;
+  KEY_PART_INFO *key_part;
+  Field *field;
+  char tmp_buf[MAX_FIELD_WIDTH];
+  bool start_where = ((int) str->length() == where_pos);
+  DBUG_ENTER("spider_oracle_handler::append_key_join_columns_for_bka");
+  DBUG_PRINT("info",("spider this=%p", this));
+  start_key_part_map = start_key->keypart_map & full_key_part_map;
+  DBUG_PRINT("info", ("spider spider_user_defined_key_parts=%u",
+    spider_user_defined_key_parts(key_info)));
+  DBUG_PRINT("info", ("spider full_key_part_map=%lu", full_key_part_map));
+  DBUG_PRINT("info", ("spider start_key_part_map=%lu", start_key_part_map));
+
+  if (!start_key_part_map)
+    DBUG_RETURN(0);
+
+  if (start_where)
+  {
+    if (str->reserve(SPIDER_SQL_WHERE_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_WHERE_STR, SPIDER_SQL_WHERE_LEN);
+  } else {
+    if (str->reserve(SPIDER_SQL_AND_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_AND_STR, SPIDER_SQL_AND_LEN);
+  }
+
+  for (
+    key_part = key_info->key_part,
+    key_count = 0;
+    start_key_part_map;
+    start_key_part_map >>= 1,
+    key_part++,
+    key_count++
+  ) {
+    field = key_part->field;
+    key_name_length =
+      oracle_share->column_name_str[field->field_index].length();
+    length = my_sprintf(tmp_buf, (tmp_buf, "c%u", key_count));
+    if (str->reserve(length + table_alias_lengths[0] + key_name_length +
+      /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+      table_alias_lengths[1] + SPIDER_SQL_PF_EQUAL_LEN + SPIDER_SQL_AND_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(table_aliases[0], table_alias_lengths[0]);
+    str->q_append(tmp_buf, length);
+    str->q_append(SPIDER_SQL_PF_EQUAL_STR, SPIDER_SQL_PF_EQUAL_LEN);
+    str->q_append(table_aliases[1], table_alias_lengths[1]);
+    oracle_share->append_column_name(str, field->field_index);
+    str->q_append(SPIDER_SQL_AND_STR, SPIDER_SQL_AND_LEN);
+  }
+  str->length(str->length() - SPIDER_SQL_AND_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_tmp_table_and_sql_for_bka(
+  const key_range *start_key
+) {
+  int error_num;
+  DBUG_ENTER("spider_oracle_handler::append_tmp_table_and_sql_for_bka");
+  DBUG_PRINT("info",("spider this=%p", this));
+  char tmp_table_name[MAX_FIELD_WIDTH * 2],
+    tgt_table_name[MAX_FIELD_WIDTH * 2];
+  int tmp_table_name_length;
+  spider_string tgt_table_name_str(tgt_table_name, MAX_FIELD_WIDTH * 2,
+    oracle_share->db_names_str[0].charset());
+  const char *table_names[2], *table_aliases[2], *table_dot_aliases[2];
+  uint table_name_lengths[2], table_alias_lengths[2],
+    table_dot_alias_lengths[2];
+  tgt_table_name_str.init_calc_mem(200);
+  tgt_table_name_str.length(0);
+  create_tmp_bka_table_name(tmp_table_name, &tmp_table_name_length,
+    first_link_idx);
+  if ((error_num = append_table_name_with_adjusting(&tgt_table_name_str,
+    first_link_idx, SPIDER_SQL_TYPE_SELECT_SQL)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  table_names[0] = tmp_table_name;
+  table_names[1] = tgt_table_name_str.c_ptr_safe();
+  table_name_lengths[0] = tmp_table_name_length;
+  table_name_lengths[1] = tgt_table_name_str.length();
+  table_aliases[0] = SPIDER_SQL_A_STR;
+  table_aliases[1] = SPIDER_SQL_B_STR;
+  table_alias_lengths[0] = SPIDER_SQL_A_LEN;
+  table_alias_lengths[1] = SPIDER_SQL_B_LEN;
+  table_dot_aliases[0] = SPIDER_SQL_A_DOT_STR;
+  table_dot_aliases[1] = SPIDER_SQL_B_DOT_STR;
+  table_dot_alias_lengths[0] = SPIDER_SQL_A_DOT_LEN;
+  table_dot_alias_lengths[1] = SPIDER_SQL_B_DOT_LEN;
+  if (
+    (error_num = append_drop_tmp_bka_table(
+      &tmp_sql, tmp_table_name, tmp_table_name_length,
+      &tmp_sql_pos1, &tmp_sql_pos5, TRUE)) ||
+    (error_num = append_create_tmp_bka_table(
+      start_key,
+      &tmp_sql, tmp_table_name,
+      tmp_table_name_length,
+      &tmp_sql_pos2, spider->share->table_share->table_charset)) ||
+    (error_num = append_insert_tmp_bka_table(
+      start_key,
+      &tmp_sql, tmp_table_name,
+      tmp_table_name_length, &tmp_sql_pos3))
+  )
+    DBUG_RETURN(error_num);
+  tmp_sql_pos4 = tmp_sql.length();
+  if ((error_num = spider_db_append_select(spider)))
+    DBUG_RETURN(error_num);
+  if (sql.reserve(SPIDER_SQL_A_DOT_LEN + SPIDER_SQL_ID_LEN +
+    SPIDER_SQL_COMMA_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  sql.q_append(SPIDER_SQL_A_DOT_STR, SPIDER_SQL_A_DOT_LEN);
+  sql.q_append(SPIDER_SQL_ID_STR, SPIDER_SQL_ID_LEN);
+  sql.q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  if (
+    (error_num = append_select_columns_with_alias(&sql,
+      SPIDER_SQL_B_DOT_STR, SPIDER_SQL_B_DOT_LEN)) ||
+    (error_num = spider_db_oracle_utility.append_from_with_alias(&sql,
+      table_names, table_name_lengths,
+      table_aliases, table_alias_lengths, 2,
+      &table_name_pos, FALSE))
+  )
+    DBUG_RETURN(error_num);
+  if (
+    oracle_share->key_hint &&
+    (error_num = spider_db_append_hint_after_table(spider,
+      &sql, &oracle_share->key_hint[spider->active_index]))
+  )
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  where_pos = sql.length();
+  if (
+    (error_num = append_key_join_columns_for_bka(
+      start_key, &sql,
+      table_dot_aliases, table_dot_alias_lengths)) ||
+    (error_num = append_condition_part(
+      SPIDER_SQL_B_DOT_STR, SPIDER_SQL_B_DOT_LEN,
+      SPIDER_SQL_TYPE_SELECT_SQL, FALSE))
+  )
+    DBUG_RETURN(error_num);
+  if (spider->result_list.direct_order_limit)
+  {
+    if ((error_num = append_key_order_for_direct_order_limit_with_alias(&sql,
+      SPIDER_SQL_B_DOT_STR, SPIDER_SQL_B_DOT_LEN)))
+      DBUG_RETURN(error_num);
+  }
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  else if (spider->result_list.direct_aggregate)
+  {
+    if ((error_num =
+      append_group_by(&sql, SPIDER_SQL_B_DOT_STR, SPIDER_SQL_B_DOT_LEN)))
+      DBUG_RETURN(error_num);
+  }
+#endif
+
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::reuse_tmp_table_and_sql_for_bka()
+{
+  DBUG_ENTER("spider_oracle_handler::reuse_tmp_table_and_sql_for_bka");
+  DBUG_PRINT("info",("spider this=%p", this));
+  tmp_sql.length(tmp_sql_pos4);
+  sql.length(limit_pos);
+  ha_sql.length(ha_limit_pos);
+  DBUG_RETURN(0);
+}
+
+void spider_oracle_handler::create_tmp_bka_table_name(
+  char *tmp_table_name,
+  int *tmp_table_name_length,
+  int link_idx
+) {
+  uint adjust_length, length;
+  DBUG_ENTER("spider_oracle_handler::create_tmp_bka_table_name");
+  if (spider_param_bka_table_name_type(current_thd,
+    oracle_share->spider_share->
+      bka_table_name_types[spider->conn_link_idx[link_idx]]) == 1)
+  {
+    adjust_length =
+      oracle_share->db_nm_max_length -
+      oracle_share->db_names_str[spider->conn_link_idx[link_idx]].length() +
+      oracle_share->table_nm_max_length -
+      oracle_share->table_names_str[spider->conn_link_idx[link_idx]].length();
+    *tmp_table_name_length = oracle_share->db_nm_max_length +
+      oracle_share->table_nm_max_length;
+    memset(tmp_table_name, ' ', adjust_length);
+    tmp_table_name += adjust_length;
+    memcpy(tmp_table_name, oracle_share->db_names_str[link_idx].c_ptr(),
+      oracle_share->db_names_str[link_idx].length());
+    tmp_table_name += oracle_share->db_names_str[link_idx].length();
+    length = my_sprintf(tmp_table_name, (tmp_table_name,
+      "%s%s%p%s", SPIDER_SQL_DOT_STR, SPIDER_SQL_TMP_BKA_STR, spider,
+      SPIDER_SQL_UNDERSCORE_STR));
+    *tmp_table_name_length += length;
+    tmp_table_name += length;
+    memcpy(tmp_table_name,
+      oracle_share->table_names_str[spider->conn_link_idx[link_idx]].c_ptr(),
+      oracle_share->table_names_str[spider->conn_link_idx[link_idx]].length());
+  } else {
+    adjust_length =
+      oracle_share->db_nm_max_length -
+      oracle_share->db_names_str[spider->conn_link_idx[link_idx]].length();
+    *tmp_table_name_length = oracle_share->db_nm_max_length;
+    memset(tmp_table_name, ' ', adjust_length);
+    tmp_table_name += adjust_length;
+    memcpy(tmp_table_name, oracle_share->db_names_str[link_idx].c_ptr(),
+      oracle_share->db_names_str[link_idx].length());
+    tmp_table_name += oracle_share->db_names_str[link_idx].length();
+    length = my_sprintf(tmp_table_name, (tmp_table_name,
+      "%s%s%p", SPIDER_SQL_DOT_STR, SPIDER_SQL_TMP_BKA_STR, spider));
+    *tmp_table_name_length += length;
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_oracle_handler::append_create_tmp_bka_table(
+  const key_range *start_key,
+  spider_string *str,
+  char *tmp_table_name,
+  int tmp_table_name_length,
+  int *db_name_pos,
+  CHARSET_INFO *table_charset
+) {
+  int error_num;
+  SPIDER_SHARE *share = spider->share;
+  THD *thd = spider->wide_handler->trx->thd;
+  char *bka_engine = spider_param_bka_engine(thd, share->bka_engine);
+  uint bka_engine_length = strlen(bka_engine),
+    cset_length = strlen(table_charset->csname);
+  DBUG_ENTER("spider_oracle_handler::append_create_tmp_bka_table");
+  if (str->reserve(SPIDER_SQL_CREATE_TMP_LEN + tmp_table_name_length +
+    SPIDER_SQL_OPEN_PAREN_LEN + SPIDER_SQL_ID_LEN + SPIDER_SQL_ID_TYPE_LEN +
+    SPIDER_SQL_COMMA_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_CREATE_TMP_STR, SPIDER_SQL_CREATE_TMP_LEN);
+  *db_name_pos = str->length();
+  str->q_append(tmp_table_name, tmp_table_name_length);
+  str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  str->q_append(SPIDER_SQL_ID_STR, SPIDER_SQL_ID_LEN);
+  str->q_append(SPIDER_SQL_ID_TYPE_STR, SPIDER_SQL_ID_TYPE_LEN);
+  str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  if ((error_num = append_key_column_types(start_key, str)))
+    DBUG_RETURN(error_num);
+  if (str->reserve(SPIDER_SQL_ENGINE_LEN + bka_engine_length +
+    SPIDER_SQL_DEF_CHARSET_LEN + cset_length + SPIDER_SQL_SEMICOLON_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_ENGINE_STR, SPIDER_SQL_ENGINE_LEN);
+  str->q_append(bka_engine, bka_engine_length);
+  str->q_append(SPIDER_SQL_DEF_CHARSET_STR, SPIDER_SQL_DEF_CHARSET_LEN);
+  str->q_append(table_charset->csname, cset_length);
+  str->q_append(SPIDER_SQL_SEMICOLON_STR, SPIDER_SQL_SEMICOLON_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_drop_tmp_bka_table(
+  spider_string *str,
+  char *tmp_table_name,
+  int tmp_table_name_length,
+  int *db_name_pos,
+  int *drop_table_end_pos,
+  bool with_semicolon
+) {
+  DBUG_ENTER("spider_oracle_handler::append_drop_tmp_bka_table");
+  if (str->reserve(SPIDER_SQL_DROP_TMP_LEN + tmp_table_name_length +
+    (with_semicolon ? SPIDER_SQL_SEMICOLON_LEN : 0)))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_DROP_TMP_STR, SPIDER_SQL_DROP_TMP_LEN);
+  *db_name_pos = str->length();
+  str->q_append(tmp_table_name, tmp_table_name_length);
+  *drop_table_end_pos = str->length();
+  if (with_semicolon)
+    str->q_append(SPIDER_SQL_SEMICOLON_STR, SPIDER_SQL_SEMICOLON_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_insert_tmp_bka_table(
+  const key_range *start_key,
+  spider_string *str,
+  char *tmp_table_name,
+  int tmp_table_name_length,
+  int *db_name_pos
+) {
+  int error_num;
+  DBUG_ENTER("spider_oracle_handler::append_insert_tmp_bka_table");
+  if (str->reserve(SPIDER_SQL_INSERT_LEN + SPIDER_SQL_INTO_LEN +
+    tmp_table_name_length + SPIDER_SQL_OPEN_PAREN_LEN + SPIDER_SQL_ID_LEN +
+    SPIDER_SQL_COMMA_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_INSERT_STR, SPIDER_SQL_INSERT_LEN);
+  str->q_append(SPIDER_SQL_INTO_STR, SPIDER_SQL_INTO_LEN);
+  *db_name_pos = str->length();
+  str->q_append(tmp_table_name, tmp_table_name_length);
+  str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  str->q_append(SPIDER_SQL_ID_STR, SPIDER_SQL_ID_LEN);
+  str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  if ((error_num = spider_db_append_key_columns(start_key, spider, str)))
+    DBUG_RETURN(error_num);
+  if (str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN + SPIDER_SQL_VALUES_LEN +
+    SPIDER_SQL_OPEN_PAREN_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+  str->q_append(SPIDER_SQL_VALUES_STR, SPIDER_SQL_VALUES_LEN);
+  str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_union_table_and_sql_for_bka(
+  const key_range *start_key
+) {
+  int error_num;
+  DBUG_ENTER("spider_oracle_handler::append_union_table_and_sql_for_bka");
+  DBUG_PRINT("info",("spider this=%p", this));
+  char tgt_table_name[MAX_FIELD_WIDTH * 2];
+  spider_string tgt_table_name_str(tgt_table_name, MAX_FIELD_WIDTH * 2,
+    oracle_share->db_names_str[0].charset());
+  const char *table_names[2], *table_aliases[2], *table_dot_aliases[2];
+  uint table_name_lengths[2], table_alias_lengths[2],
+    table_dot_alias_lengths[2];
+  tgt_table_name_str.init_calc_mem(234);
+  tgt_table_name_str.length(0);
+  if ((error_num = append_table_name_with_adjusting(&tgt_table_name_str,
+    first_link_idx, SPIDER_SQL_TYPE_SELECT_SQL)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  table_names[0] = "";
+  table_names[1] = tgt_table_name_str.c_ptr_safe();
+  table_name_lengths[0] = 0;
+  table_name_lengths[1] = tgt_table_name_str.length();
+  table_aliases[0] = SPIDER_SQL_A_STR;
+  table_aliases[1] = SPIDER_SQL_B_STR;
+  table_alias_lengths[0] = SPIDER_SQL_A_LEN;
+  table_alias_lengths[1] = SPIDER_SQL_B_LEN;
+  table_dot_aliases[0] = SPIDER_SQL_A_DOT_STR;
+  table_dot_aliases[1] = SPIDER_SQL_B_DOT_STR;
+  table_dot_alias_lengths[0] = SPIDER_SQL_A_DOT_LEN;
+  table_dot_alias_lengths[1] = SPIDER_SQL_B_DOT_LEN;
+
+  if ((error_num = spider_db_append_select(spider)))
+    DBUG_RETURN(error_num);
+  if (sql.reserve(SPIDER_SQL_A_DOT_LEN + SPIDER_SQL_ID_LEN +
+    SPIDER_SQL_COMMA_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  sql.q_append(SPIDER_SQL_A_DOT_STR, SPIDER_SQL_A_DOT_LEN);
+  sql.q_append(SPIDER_SQL_ID_STR, SPIDER_SQL_ID_LEN);
+  sql.q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  if ((error_num = append_select_columns_with_alias(&sql,
+    SPIDER_SQL_B_DOT_STR, SPIDER_SQL_B_DOT_LEN)))
+    DBUG_RETURN(error_num);
+  if (sql.reserve(SPIDER_SQL_FROM_LEN + (SPIDER_SQL_OPEN_PAREN_LEN * 2)))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  sql.q_append(SPIDER_SQL_FROM_STR, SPIDER_SQL_FROM_LEN);
+  sql.q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  sql.q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  tmp_sql_pos1 = sql.length();
+
+  if (
+    (error_num = spider_db_oracle_utility.append_from_with_alias(&tmp_sql,
+      table_names, table_name_lengths,
+      table_aliases, table_alias_lengths, 2,
+      &table_name_pos, FALSE))
+  )
+    DBUG_RETURN(error_num);
+  if (
+    oracle_share->key_hint &&
+    (error_num = spider_db_append_hint_after_table(spider,
+      &tmp_sql, &oracle_share->key_hint[spider->active_index]))
+  )
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  where_pos = tmp_sql.length();
+  if (
+    (error_num = append_key_join_columns_for_bka(
+      start_key, &tmp_sql,
+      table_dot_aliases, table_dot_alias_lengths)) ||
+    (error_num = append_condition_part(
+      SPIDER_SQL_B_DOT_STR, SPIDER_SQL_B_DOT_LEN,
+      SPIDER_SQL_TYPE_TMP_SQL, FALSE))
+  )
+    DBUG_RETURN(error_num);
+  if (spider->result_list.direct_order_limit)
+  {
+    if ((error_num = append_key_order_for_direct_order_limit_with_alias(
+      &tmp_sql, SPIDER_SQL_B_DOT_STR, SPIDER_SQL_B_DOT_LEN)))
+      DBUG_RETURN(error_num);
+  }
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  else if (spider->result_list.direct_aggregate)
+  {
+    if ((error_num =
+      append_group_by(&tmp_sql, SPIDER_SQL_B_DOT_STR, SPIDER_SQL_B_DOT_LEN)))
+      DBUG_RETURN(error_num);
+  }
+#endif
+
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::reuse_union_table_and_sql_for_bka()
+{
+  DBUG_ENTER("spider_oracle_handler::reuse_union_table_and_sql_for_bka");
+  DBUG_PRINT("info",("spider this=%p", this));
+  sql.length(tmp_sql_pos1);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_insert_for_recovery(
+  ulong sql_type,
+  int link_idx
+) {
+  const TABLE *table = spider->get_table();
+  SPIDER_SHARE *share = spider->share;
+  Field **field;
+  uint field_name_length = 0;
+  bool add_value = FALSE;
+  spider_string *insert_sql;
+  DBUG_ENTER("spider_oracle_handler::append_insert_for_recovery");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql_type == SPIDER_SQL_TYPE_INSERT_SQL)
+  {
+    insert_sql = &spider->result_list.insert_sqls[link_idx];
+    insert_sql->length(0);
+  } else {
+    insert_sql = &spider->result_list.update_sqls[link_idx];
+  }
+  if (insert_sql->reserve(
+    SPIDER_SQL_INSERT_LEN + SPIDER_SQL_SQL_IGNORE_LEN +
+    SPIDER_SQL_INTO_LEN + oracle_share->db_nm_max_length +
+    SPIDER_SQL_DOT_LEN + oracle_share->table_nm_max_length +
+    /* SPIDER_SQL_NAME_QUOTE_LEN */ 4 + SPIDER_SQL_OPEN_PAREN_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  insert_sql->q_append(SPIDER_SQL_INSERT_STR, SPIDER_SQL_INSERT_LEN);
+  insert_sql->q_append(SPIDER_SQL_SQL_IGNORE_STR, SPIDER_SQL_SQL_IGNORE_LEN);
+  insert_sql->q_append(SPIDER_SQL_INTO_STR, SPIDER_SQL_INTO_LEN);
+  oracle_share->append_table_name(insert_sql, spider->conn_link_idx[link_idx]);
+  insert_sql->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  for (field = table->field; *field; field++)
+  {
+    field_name_length =
+      oracle_share->column_name_str[(*field)->field_index].length();
+    if (insert_sql->reserve(field_name_length +
+      /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_COMMA_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    oracle_share->append_column_name(insert_sql, (*field)->field_index);
+    insert_sql->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+  if (field_name_length)
+    insert_sql->length(insert_sql->length() - SPIDER_SQL_COMMA_LEN);
+  if (insert_sql->reserve(SPIDER_SQL_CLOSE_PAREN_LEN + SPIDER_SQL_VALUES_LEN +
+    SPIDER_SQL_OPEN_PAREN_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  insert_sql->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+  insert_sql->q_append(SPIDER_SQL_VALUES_STR, SPIDER_SQL_VALUES_LEN);
+  insert_sql->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  for (field = table->field; *field; field++)
+  {
+    add_value = TRUE;
+    if ((*field)->is_null())
+    {
+      if (insert_sql->reserve(SPIDER_SQL_NULL_LEN + SPIDER_SQL_COMMA_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      insert_sql->q_append(SPIDER_SQL_NULL_STR, SPIDER_SQL_NULL_LEN);
+    } else {
+      if (
+        spider_db_oracle_utility.
+          append_column_value(spider, insert_sql, *field, NULL,
+            share->access_charset) ||
+        insert_sql->reserve(SPIDER_SQL_COMMA_LEN)
+      )
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    insert_sql->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+  if (add_value)
+    insert_sql->length(insert_sql->length() - SPIDER_SQL_COMMA_LEN);
+  if (insert_sql->reserve(SPIDER_SQL_CLOSE_PAREN_LEN, SPIDER_SQL_COMMA_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  insert_sql->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+  if (sql_type == SPIDER_SQL_TYPE_INSERT_SQL)
+  {
+    exec_insert_sql = insert_sql;
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_update(
+  const TABLE *table,
+  my_ptrdiff_t ptr_diff
+) {
+  int error_num;
+  spider_string *str = &update_sql;
+  DBUG_ENTER("spider_oracle_handler::append_update");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->length() > 0)
+  {
+    if (str->reserve(SPIDER_SQL_SEMICOLON_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SEMICOLON_STR, SPIDER_SQL_SEMICOLON_LEN);
+  }
+
+  if (
+    (error_num = append_update(str, 0)) ||
+    (error_num = append_update_set(str)) ||
+    (error_num = append_update_where(str, table, ptr_diff))
+  )
+    DBUG_RETURN(error_num);
+  filled_up = (str->length() >= (uint) spider->result_list.bulk_update_size);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_update(
+  const TABLE *table,
+  my_ptrdiff_t ptr_diff,
+  int link_idx
+) {
+  int error_num;
+  SPIDER_SHARE *share = spider->share;
+  spider_string *str = &spider->result_list.update_sqls[link_idx];
+  DBUG_ENTER("spider_oracle_handler::append_update");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->length() > 0)
+  {
+    if (str->reserve(SPIDER_SQL_SEMICOLON_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SEMICOLON_STR, SPIDER_SQL_SEMICOLON_LEN);
+  }
+
+  if (
+    (error_num = append_update(str, link_idx)) ||
+    (error_num = append_update_set(str)) ||
+    (error_num = append_update_where(str, table, ptr_diff))
+  )
+    DBUG_RETURN(error_num);
+
+  if (
+    spider->pk_update &&
+    share->link_statuses[link_idx] == SPIDER_LINK_STATUS_RECOVERY
+  ) {
+    if (str->reserve(SPIDER_SQL_SEMICOLON_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SEMICOLON_STR, SPIDER_SQL_SEMICOLON_LEN);
+    if ((error_num = append_insert_for_recovery(
+      SPIDER_SQL_TYPE_UPDATE_SQL, link_idx)))
+      DBUG_RETURN(error_num);
+  }
+
+  if (!filled_up)
+    filled_up = (str->length() >= (uint) spider->result_list.bulk_update_size);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_delete(
+  const TABLE *table,
+  my_ptrdiff_t ptr_diff
+) {
+  int error_num;
+  spider_string *str = &update_sql;
+  DBUG_ENTER("spider_oracle_handler::append_delete");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->length() > 0)
+  {
+    if (str->reserve(SPIDER_SQL_SEMICOLON_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SEMICOLON_STR, SPIDER_SQL_SEMICOLON_LEN);
+  }
+
+  if (
+    (error_num = append_delete(str)) ||
+    (error_num = append_from(str, SPIDER_SQL_TYPE_DELETE_SQL,
+      first_link_idx)) ||
+    (error_num = append_update_where(str, table, ptr_diff))
+  )
+    DBUG_RETURN(error_num);
+  filled_up = (str->length() >= (uint) spider->result_list.bulk_update_size);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_delete(
+  const TABLE *table,
+  my_ptrdiff_t ptr_diff,
+  int link_idx
+) {
+  int error_num;
+  spider_string *str = &spider->result_list.update_sqls[link_idx];
+  DBUG_ENTER("spider_oracle_handler::append_delete");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->length() > 0)
+  {
+    if (str->reserve(SPIDER_SQL_SEMICOLON_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SEMICOLON_STR, SPIDER_SQL_SEMICOLON_LEN);
+  }
+
+  if (
+    (error_num = append_delete(str)) ||
+    (error_num = append_from(str, SPIDER_SQL_TYPE_DELETE_SQL, link_idx)) ||
+    (error_num = append_update_where(str, table, ptr_diff))
+  )
+    DBUG_RETURN(error_num);
+  if (!filled_up)
+    filled_up = (str->length() >= (uint) spider->result_list.bulk_update_size);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_insert_part()
+{
+  int error_num;
+  DBUG_ENTER("spider_oracle_handler::append_insert_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  error_num = append_insert(&insert_sql, 0);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_insert(
+  spider_string *str,
+  int link_idx
+) {
+  DBUG_ENTER("spider_oracle_handler::append_insert");
+  if (str->reserve(SPIDER_SQL_INSERT_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_INSERT_STR, SPIDER_SQL_INSERT_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_update_part()
+{
+  int error_num;
+  DBUG_ENTER("spider_oracle_handler::append_update_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  error_num = append_update(&update_sql, 0);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_update(
+  spider_string *str,
+  int link_idx
+) {
+  DBUG_ENTER("spider_oracle_handler::append_update");
+  if (str->reserve(SPIDER_SQL_UPDATE_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_UPDATE_STR, SPIDER_SQL_UPDATE_LEN);
+  if (str->reserve(oracle_share->db_nm_max_length +
+    SPIDER_SQL_DOT_LEN + oracle_share->table_nm_max_length +
+    /* SPIDER_SQL_NAME_QUOTE_LEN */ 4))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  table_name_pos = str->length();
+  append_table_name_with_adjusting(str, link_idx, SPIDER_SQL_TYPE_UPDATE_SQL);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_delete_part()
+{
+  int error_num;
+  DBUG_ENTER("spider_oracle_handler::append_delete_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  error_num = append_delete(&update_sql);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_delete(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_oracle_handler::append_delete");
+  if (str->reserve(SPIDER_SQL_DELETE_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_DELETE_STR, SPIDER_SQL_DELETE_LEN);
+  str->length(str->length() - 1);
+  DBUG_RETURN(0);
+}
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+int spider_oracle_handler::append_increment_update_set_part()
+{
+  int error_num;
+  DBUG_ENTER("spider_oracle_handler::append_increment_update_set_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  error_num = append_increment_update_set(&update_sql);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_increment_update_set(
+  spider_string *str
+) {
+  uint field_name_length;
+  uint roop_count;
+  Field *field;
+  DBUG_ENTER("spider_oracle_handler::append_increment_update_set");
+  if (str->reserve(SPIDER_SQL_SET_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_SET_STR, SPIDER_SQL_SET_LEN);
+  const SPIDER_HS_STRING_REF *value = hs_upds.ptr();
+  for (roop_count = 0; roop_count < hs_upds.size();
+    roop_count++)
+  {
+    DBUG_PRINT("info",("spider value_size[%u]=%zu", roop_count,
+      value[roop_count].size()));
+#ifndef DBUG_OFF
+    char print_buf[MAX_FIELD_WIDTH];
+    if (value[roop_count].size() < MAX_FIELD_WIDTH)
+    {
+      memcpy(print_buf, value[roop_count].begin(), value[roop_count].size());
+      print_buf[value[roop_count].size()] = '\0';
+      DBUG_PRINT("info",("spider value[%u]=%s", roop_count, print_buf));
+    }
+#endif
+    if (
+      value[roop_count].size() == 1 &&
+      *(value[roop_count].begin()) == '0'
+    )
+      continue;
+
+    Field *top_table_field =
+      spider->get_top_table_field(spider->hs_pushed_ret_fields[roop_count]);
+    if (!(field = spider->field_exchange(top_table_field)))
+      continue;
+    field_name_length =
+      oracle_share->column_name_str[field->field_index].length();
+
+    if (str->reserve(field_name_length * 2 + /* SPIDER_SQL_NAME_QUOTE_LEN */
+      4 + SPIDER_SQL_EQUAL_LEN + SPIDER_SQL_HS_INCREMENT_LEN +
+      SPIDER_SQL_COMMA_LEN + value[roop_count].size()))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+
+    oracle_share->append_column_name(str, field->field_index);
+    str->q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+    oracle_share->append_column_name(str, field->field_index);
+    if (spider->hs_increment)
+      str->q_append(SPIDER_SQL_HS_INCREMENT_STR,
+        SPIDER_SQL_HS_INCREMENT_LEN);
+    else
+      str->q_append(SPIDER_SQL_HS_DECREMENT_STR,
+        SPIDER_SQL_HS_DECREMENT_LEN);
+    str->q_append(value[roop_count].begin(), value[roop_count].size());
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+  str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  DBUG_RETURN(0);
+}
+#endif
+#endif
+
+int spider_oracle_handler::append_update_set_part()
+{
+  int error_num;
+  DBUG_ENTER("spider_oracle_handler::append_update_set_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  update_set_pos = update_sql.length();
+  error_num = append_update_set(&update_sql);
+  where_pos = update_sql.length();
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_update_set(
+  spider_string *str
+) {
+  uint field_name_length;
+  SPIDER_SHARE *share = spider->share;
+  TABLE *table = spider->get_table();
+  Field **fields;
+  DBUG_ENTER("spider_oracle_handler::append_update_set");
+  if (str->reserve(SPIDER_SQL_SET_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_SET_STR, SPIDER_SQL_SET_LEN);
+  for (fields = table->field; *fields; fields++)
+  {
+    if (bitmap_is_set(table->write_set, (*fields)->field_index))
+    {
+      field_name_length =
+        oracle_share->column_name_str[(*fields)->field_index].length();
+      if ((*fields)->is_null())
+      {
+        if (str->reserve(field_name_length + /* SPIDER_SQL_NAME_QUOTE_LEN */
+          2 + SPIDER_SQL_EQUAL_LEN + SPIDER_SQL_NULL_LEN +
+          SPIDER_SQL_COMMA_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        oracle_share->append_column_name(str, (*fields)->field_index);
+        str->q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+        str->q_append(SPIDER_SQL_NULL_STR, SPIDER_SQL_NULL_LEN);
+      } else {
+        if (str->reserve(field_name_length + /* SPIDER_SQL_NAME_QUOTE_LEN */
+          2 + SPIDER_SQL_EQUAL_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        oracle_share->append_column_name(str, (*fields)->field_index);
+        str->q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+#ifndef DBUG_OFF
+        my_bitmap_map *tmp_map = dbug_tmp_use_all_columns(table,
+          table->read_set);
+#endif
+        if (
+          spider_db_oracle_utility.
+            append_column_value(spider, str, *fields, NULL,
+              share->access_charset) ||
+          str->reserve(SPIDER_SQL_COMMA_LEN)
+        ) {
+#ifndef DBUG_OFF
+          dbug_tmp_restore_column_map(table->read_set, tmp_map);
+#endif
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+#ifndef DBUG_OFF
+        dbug_tmp_restore_column_map(table->read_set, tmp_map);
+#endif
+      }
+      str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+    }
+  }
+  str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  DBUG_RETURN(0);
+}
+
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+int spider_oracle_handler::append_direct_update_set_part()
+{
+  int error_num;
+  DBUG_ENTER("spider_oracle_handler::append_direct_update_set_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  update_set_pos = update_sql.length();
+  error_num = append_direct_update_set(&update_sql);
+  where_pos = update_sql.length();
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_direct_update_set(
+  spider_string *str
+) {
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  uint field_name_length;
+  SPIDER_SHARE *share = spider->share;
+#ifndef DBUG_OFF
+  TABLE *table = spider->get_table();
+#endif
+#endif
+  DBUG_ENTER("spider_oracle_handler::append_direct_update_set");
+  if (
+    spider->direct_update_kinds == SPIDER_SQL_KIND_SQL &&
+    spider->wide_handler->direct_update_fields
+  ) {
+    if (str->reserve(SPIDER_SQL_SET_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SET_STR, SPIDER_SQL_SET_LEN);
+    DBUG_RETURN(append_update_columns(str, NULL, 0));
+  }
+
+  if (
+    (spider->direct_update_kinds & SPIDER_SQL_KIND_SQL)
+  ) {
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    size_t roop_count;
+    Field *field;
+    if (str->reserve(SPIDER_SQL_SET_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SET_STR, SPIDER_SQL_SET_LEN);
+    for (roop_count = 0; roop_count < spider->hs_pushed_ret_fields_num;
+      roop_count++)
+    {
+      Field *top_table_field =
+        spider->get_top_table_field(spider->hs_pushed_ret_fields[roop_count]);
+      if (!(field = spider->field_exchange(top_table_field)))
+        continue;
+      field_name_length =
+        oracle_share->column_name_str[field->field_index].length();
+      if (top_table_field->is_null())
+      {
+        if (str->reserve(field_name_length + /* SPIDER_SQL_NAME_QUOTE_LEN */
+          2 + SPIDER_SQL_EQUAL_LEN + SPIDER_SQL_NULL_LEN +
+          SPIDER_SQL_COMMA_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        oracle_share->append_column_name(str, field->field_index);
+        str->q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+        str->q_append(SPIDER_SQL_NULL_STR, SPIDER_SQL_NULL_LEN);
+      } else {
+        if (str->reserve(field_name_length + /* SPIDER_SQL_NAME_QUOTE_LEN */
+          2 + SPIDER_SQL_EQUAL_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        oracle_share->append_column_name(str, field->field_index);
+        str->q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+#ifndef DBUG_OFF
+        my_bitmap_map *tmp_map = dbug_tmp_use_all_columns(table,
+          table->read_set);
+#endif
+        if (
+          spider_db_oracle_utility.
+            append_column_value(spider, str, top_table_field, NULL,
+              share->access_charset) ||
+          str->reserve(SPIDER_SQL_COMMA_LEN)
+        ) {
+#ifndef DBUG_OFF
+          dbug_tmp_restore_column_map(table->read_set, tmp_map);
+#endif
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+#ifndef DBUG_OFF
+        dbug_tmp_restore_column_map(table->read_set, tmp_map);
+#endif
+      }
+      str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+    }
+    str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+#else
+    DBUG_ASSERT(0);
+#endif
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_dup_update_pushdown_part(
+  const char *alias,
+  uint alias_length
+) {
+  int error_num;
+  DBUG_ENTER("spider_oracle_handler::append_dup_update_pushdown_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  dup_update_sql.length(0);
+  error_num = append_update_columns(&dup_update_sql, alias, alias_length);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_update_columns_part(
+  const char *alias,
+  uint alias_length
+) {
+  int error_num;
+  DBUG_ENTER("spider_oracle_handler::append_update_columns_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  error_num = append_update_columns(&update_sql, alias, alias_length);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::check_update_columns_part()
+{
+  int error_num;
+  DBUG_ENTER("spider_oracle_handler::check_update_columns_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  error_num = append_update_columns(NULL, NULL, 0);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_update_columns(
+  spider_string *str,
+  const char *alias,
+  uint alias_length
+) {
+  int error_num;
+  List_iterator_fast<Item> fi(*spider->wide_handler->direct_update_fields),
+    vi(*spider->wide_handler->direct_update_values);
+  Item *field, *value;
+  DBUG_ENTER("spider_oracle_handler::append_update_columns");
+  while ((field = fi++))
+  {
+    value = vi++;
+    if ((error_num = spider_db_print_item_type(
+      (Item *) field, NULL, spider, str, alias, alias_length,
+      spider_dbton_oracle.dbton_id, FALSE, NULL)))
+    {
+      if (
+        error_num == ER_SPIDER_COND_SKIP_NUM &&
+        field->type() == Item::FIELD_ITEM &&
+        ((Item_field *) field)->field
+      )
+        continue;
+      DBUG_RETURN(error_num);
+    }
+    if (str)
+    {
+      if (str->reserve(SPIDER_SQL_EQUAL_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+    }
+    if ((error_num = spider_db_print_item_type(
+      (Item *) value, ((Item_field *) field)->field, spider, str,
+      alias, alias_length, spider_dbton_oracle.dbton_id, FALSE, NULL)))
+      DBUG_RETURN(error_num);
+    if (str)
+    {
+      if (str->reserve(SPIDER_SQL_COMMA_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+    }
+  }
+  if (str)
+    str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  DBUG_RETURN(0);
+/*
+  error_num = spider_db_append_update_columns(spider, str,
+    alias, alias_length, spider_dbton_oracle.dbton_id);
+  DBUG_RETURN(error_num);
+*/
+}
+#endif
+
+int spider_oracle_handler::append_select_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_select_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      str = &ha_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_select(str, sql_type);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_select(
+  spider_string *str,
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_oracle_handler::append_select");
+  if (sql_type == SPIDER_SQL_TYPE_HANDLER)
+  {
+    if (str->reserve(SPIDER_SQL_HANDLER_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_HANDLER_STR, SPIDER_SQL_HANDLER_LEN);
+  } else {
+    if (str->reserve(SPIDER_SQL_SELECT_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SELECT_STR, SPIDER_SQL_SELECT_LEN);
+    if (spider->result_list.direct_distinct)
+    {
+      if (str->reserve(SPIDER_SQL_DISTINCT_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_DISTINCT_STR, SPIDER_SQL_DISTINCT_LEN);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_table_select_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_table_select_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_table_select(str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_table_select(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_oracle_handler::append_table_select");
+  table_name_pos = str->length() + oracle_share->table_select_pos;
+  if (str->append(*(oracle_share->table_select)))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_key_select_part(
+  ulong sql_type,
+  uint idx
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_key_select_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_key_select(str, idx);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_key_select(
+  spider_string *str,
+  uint idx
+) {
+  DBUG_ENTER("spider_oracle_handler::append_key_select");
+  table_name_pos = str->length() + oracle_share->key_select_pos[idx];
+  if (str->append(oracle_share->key_select[idx]))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_minimum_select_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_minimum_select_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_minimum_select(str, sql_type);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_minimum_select(
+  spider_string *str,
+  ulong sql_type
+) {
+  TABLE *table = spider->get_table();
+  Field **field;
+  int field_length;
+  bool appended = FALSE;
+  DBUG_ENTER("spider_oracle_handler::append_minimum_select");
+  minimum_select_bitmap_create();
+  for (field = table->field; *field; field++)
+  {
+    if (minimum_select_bit_is_set((*field)->field_index))
+    {
+/*
+      spider_set_bit(minimum_select_bitmap, (*field)->field_index);
+*/
+      field_length =
+        oracle_share->column_name_str[(*field)->field_index].length();
+      if (str->reserve(field_length +
+        /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_COMMA_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      oracle_share->append_column_name(str, (*field)->field_index);
+      str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+      appended = TRUE;
+    }
+  }
+  if (appended)
+    str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  else {
+    if (str->reserve(SPIDER_SQL_ONE_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_ONE_STR, SPIDER_SQL_ONE_LEN);
+  }
+  DBUG_RETURN(append_from(str, sql_type, first_link_idx));
+}
+
+int spider_oracle_handler::append_table_select_with_alias(
+  spider_string *str,
+  const char *alias,
+  uint alias_length
+) {
+  TABLE *table = spider->get_table();
+  Field **field;
+  int field_length;
+  DBUG_ENTER("spider_oracle_handler::append_table_select_with_alias");
+  for (field = table->field; *field; field++)
+  {
+    field_length =
+      oracle_share->column_name_str[(*field)->field_index].length();
+    if (str->reserve(alias_length + field_length +
+      /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_COMMA_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(alias, alias_length);
+    oracle_share->append_column_name(str, (*field)->field_index);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+  str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_key_select_with_alias(
+  spider_string *str,
+  const KEY *key_info,
+  const char *alias,
+  uint alias_length
+) {
+  KEY_PART_INFO *key_part;
+  Field *field;
+  uint part_num;
+  int field_length;
+  DBUG_ENTER("spider_oracle_handler::append_key_select_with_alias");
+  for (key_part = key_info->key_part, part_num = 0;
+    part_num < spider_user_defined_key_parts(key_info); key_part++, part_num++)
+  {
+    field = key_part->field;
+    field_length = oracle_share->column_name_str[field->field_index].length();
+    if (str->reserve(alias_length + field_length +
+      /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_COMMA_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(alias, alias_length);
+    oracle_share->append_column_name(str, field->field_index);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+  str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_minimum_select_with_alias(
+  spider_string *str,
+  const char *alias,
+  uint alias_length
+) {
+  TABLE *table = spider->get_table();
+  Field **field;
+  int field_length;
+  bool appended = FALSE;
+  DBUG_ENTER("spider_oracle_handler::append_minimum_select_with_alias");
+  minimum_select_bitmap_create();
+  for (field = table->field; *field; field++)
+  {
+    if (minimum_select_bit_is_set((*field)->field_index))
+    {
+/*
+      spider_set_bit(minimum_select_bitmap, (*field)->field_index);
+*/
+      field_length =
+        oracle_share->column_name_str[(*field)->field_index].length();
+      if (str->reserve(alias_length + field_length +
+        /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_COMMA_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(alias, alias_length);
+      oracle_share->append_column_name(str, (*field)->field_index);
+      str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+      appended = TRUE;
+    }
+  }
+  if (appended)
+    str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  else {
+    if (str->reserve(SPIDER_SQL_ONE_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_ONE_STR, SPIDER_SQL_ONE_LEN);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_select_columns_with_alias(
+  spider_string *str,
+  const char *alias,
+  uint alias_length
+) {
+  int error_num;
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  DBUG_ENTER("spider_oracle_handler::append_select_columns_with_alias");
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  if (
+    result_list->direct_aggregate &&
+    (error_num = append_sum_select(str, alias, alias_length))
+  )
+    DBUG_RETURN(error_num);
+#endif
+  if ((error_num = append_match_select(str, alias, alias_length)))
+    DBUG_RETURN(error_num);
+  if (!spider->select_column_mode)
+  {
+    if (result_list->keyread)
+      DBUG_RETURN(append_key_select_with_alias(
+        str, result_list->key_info, alias, alias_length));
+    else
+      DBUG_RETURN(append_table_select_with_alias(
+        str, alias, alias_length));
+  }
+  DBUG_RETURN(append_minimum_select_with_alias(str, alias, alias_length));
+}
+
+int spider_oracle_handler::append_hint_after_table_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_hint_after_table_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &sql;
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      str = &update_sql;
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      str = &ha_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_hint_after_table(str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_hint_after_table(
+  spider_string *str
+) {
+  int error_num;
+  DBUG_ENTER("spider_oracle_handler::append_hint_after_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (
+    oracle_share->key_hint &&
+    (error_num = spider_db_append_hint_after_table(spider,
+      str, &oracle_share->key_hint[spider->active_index]))
+  )
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  DBUG_RETURN(0);
+}
+
+void spider_oracle_handler::set_where_pos(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_oracle_handler::set_where_pos");
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      where_pos = sql.length();
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      where_pos = update_sql.length();
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      ha_read_pos = ha_sql.length();
+      break;
+    default:
+      break;
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_oracle_handler::set_where_to_pos(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_oracle_handler::set_where_to_pos");
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      sql.length(where_pos);
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      update_sql.length(where_pos);
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      ha_sql.length(ha_read_pos);
+      break;
+    default:
+      break;
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_oracle_handler::check_item_type(
+  Item *item
+) {
+  int error_num;
+  DBUG_ENTER("spider_oracle_handler::check_item_type");
+  DBUG_PRINT("info",("spider this=%p", this));
+  error_num = spider_db_print_item_type(item, NULL, spider, NULL, NULL, 0,
+    spider_dbton_oracle.dbton_id, FALSE, NULL);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_values_connector_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_values_connector_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &tmp_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_values_connector(str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_values_connector(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_oracle_handler::append_values_connector");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN +
+    SPIDER_SQL_COMMA_LEN + SPIDER_SQL_OPEN_PAREN_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+  str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_values_terminator_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_values_terminator_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &tmp_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_values_terminator(str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_values_terminator(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_oracle_handler::append_values_terminator");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str->length(str->length() -
+    SPIDER_SQL_COMMA_LEN - SPIDER_SQL_OPEN_PAREN_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_union_table_connector_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_union_table_connector_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &tmp_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_union_table_connector(str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_union_table_connector(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_oracle_handler::append_union_table_connector");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve((SPIDER_SQL_SPACE_LEN * 2) + SPIDER_SQL_UNION_ALL_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+  str->q_append(SPIDER_SQL_UNION_ALL_STR, SPIDER_SQL_UNION_ALL_LEN);
+  str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_union_table_terminator_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_union_table_terminator_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_union_table_terminator(str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_union_table_terminator(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_oracle_handler::append_union_table_terminator");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str->length(str->length() -
+    ((SPIDER_SQL_SPACE_LEN * 2) + SPIDER_SQL_UNION_ALL_LEN));
+  str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+  str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+  table_name_pos = str->length() + SPIDER_SQL_SPACE_LEN + SPIDER_SQL_A_LEN +
+    SPIDER_SQL_COMMA_LEN;
+  if (str->reserve(tmp_sql.length() - SPIDER_SQL_FROM_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(tmp_sql.ptr() + SPIDER_SQL_FROM_LEN,
+    tmp_sql.length() - SPIDER_SQL_FROM_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_key_column_values_part(
+  const key_range *start_key,
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_key_column_values_part");
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &tmp_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_key_column_values(str, start_key);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_key_column_values(
+  spider_string *str,
+  const key_range *start_key
+) {
+  int error_num;
+  const uchar *ptr;
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  SPIDER_SHARE *share = spider->share;
+  KEY *key_info = result_list->key_info;
+  uint length;
+  uint store_length;
+  key_part_map full_key_part_map =
+    make_prev_keypart_map(spider_user_defined_key_parts(key_info));
+  key_part_map start_key_part_map;
+  KEY_PART_INFO *key_part;
+  Field *field;
+  DBUG_ENTER("spider_oracle_handler::append_key_column_values");
+  start_key_part_map = start_key->keypart_map & full_key_part_map;
+  DBUG_PRINT("info", ("spider spider_user_defined_key_parts=%u",
+    spider_user_defined_key_parts(key_info)));
+  DBUG_PRINT("info", ("spider full_key_part_map=%lu", full_key_part_map));
+  DBUG_PRINT("info", ("spider start_key_part_map=%lu", start_key_part_map));
+
+  if (!start_key_part_map)
+    DBUG_RETURN(0);
+
+  for (
+    key_part = key_info->key_part,
+    length = 0;
+    start_key_part_map;
+    start_key_part_map >>= 1,
+    key_part++,
+    length += store_length
+  ) {
+    store_length = key_part->store_length;
+    ptr = start_key->key + length;
+    field = key_part->field;
+    if ((error_num = spider_db_append_null_value(str, key_part, &ptr)))
+    {
+      if (error_num > 0)
+        DBUG_RETURN(error_num);
+    } else {
+      if (spider_db_oracle_utility.append_column_value(spider, str, field, ptr,
+        share->access_charset))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+
+    if (str->reserve(SPIDER_SQL_COMMA_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+  str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_key_column_values_with_name_part(
+  const key_range *start_key,
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_key_column_values_with_name_part");
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &tmp_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_key_column_values_with_name(str, start_key);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_key_column_values_with_name(
+  spider_string *str,
+  const key_range *start_key
+) {
+  int error_num;
+  const uchar *ptr;
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  SPIDER_SHARE *share = spider->share;
+  KEY *key_info = result_list->key_info;
+  uint length;
+  uint key_name_length, key_count;
+  uint store_length;
+  key_part_map full_key_part_map =
+    make_prev_keypart_map(spider_user_defined_key_parts(key_info));
+  key_part_map start_key_part_map;
+  KEY_PART_INFO *key_part;
+  Field *field;
+  char tmp_buf[MAX_FIELD_WIDTH];
+  DBUG_ENTER("spider_oracle_handler::append_key_column_values_with_name");
+  start_key_part_map = start_key->keypart_map & full_key_part_map;
+  DBUG_PRINT("info", ("spider spider_user_defined_key_parts=%u",
+    spider_user_defined_key_parts(key_info)));
+  DBUG_PRINT("info", ("spider full_key_part_map=%lu", full_key_part_map));
+  DBUG_PRINT("info", ("spider start_key_part_map=%lu", start_key_part_map));
+
+  if (!start_key_part_map)
+    DBUG_RETURN(0);
+
+  for (
+    key_part = key_info->key_part,
+    length = 0,
+    key_count = 0;
+    start_key_part_map;
+    start_key_part_map >>= 1,
+    key_part++,
+    length += store_length,
+    key_count++
+  ) {
+    store_length = key_part->store_length;
+    ptr = start_key->key + length;
+    field = key_part->field;
+    if ((error_num = spider_db_append_null_value(str, key_part, &ptr)))
+    {
+      if (error_num > 0)
+        DBUG_RETURN(error_num);
+    } else {
+      if (spider_db_oracle_utility.append_column_value(spider, str, field, ptr,
+        share->access_charset))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+
+    key_name_length = my_sprintf(tmp_buf, (tmp_buf, "c%u", key_count));
+    if (str->reserve(SPIDER_SQL_SPACE_LEN + key_name_length +
+      SPIDER_SQL_COMMA_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+    str->q_append(tmp_buf, key_name_length);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+  str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_key_where_part(
+  const key_range *start_key,
+  const key_range *end_key,
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str, *str_part = NULL, *str_part2 = NULL;
+  bool set_order;
+  DBUG_ENTER("spider_oracle_handler::append_key_where_part");
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      set_order = FALSE;
+      break;
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &tmp_sql;
+      set_order = FALSE;
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      str = &update_sql;
+      set_order = FALSE;
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      str = &ha_sql;
+      ha_read_pos = str->length();
+      str_part = &sql_part;
+      str_part2 = &sql_part2;
+      str_part->length(0);
+      str_part2->length(0);
+      set_order = TRUE;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_key_where(str, str_part, str_part2, start_key, end_key,
+    sql_type, set_order);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_key_where(
+  spider_string *str,
+  spider_string *str_part,
+  spider_string *str_part2,
+  const key_range *start_key,
+  const key_range *end_key,
+  ulong sql_type,
+  bool set_order
+) {
+  int error_num;
+  DBUG_ENTER("spider_oracle_handler::append_key_where");
+  error_num = spider_db_append_key_where_internal(str, str_part, str_part2,
+    start_key, end_key, spider, set_order, sql_type,
+    spider_dbton_oracle.dbton_id);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_is_null_part(
+  ulong sql_type,
+  KEY_PART_INFO *key_part,
+  const key_range *key,
+  const uchar **ptr,
+  bool key_eq,
+  bool tgt_final
+) {
+  int error_num;
+  spider_string *str, *str_part = NULL, *str_part2 = NULL;
+  DBUG_ENTER("spider_oracle_handler::append_is_null_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &sql;
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      str = &update_sql;
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      str = &ha_sql;
+      str_part = &sql_part;
+      str_part2 = &sql_part2;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_is_null(sql_type, str, str_part, str_part2,
+    key_part, key, ptr, key_eq, tgt_final);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_is_null(
+  ulong sql_type,
+  spider_string *str,
+  spider_string *str_part,
+  spider_string *str_part2,
+  KEY_PART_INFO *key_part,
+  const key_range *key,
+  const uchar **ptr,
+  bool key_eq,
+  bool tgt_final
+) {
+  DBUG_ENTER("spider_oracle_handler::append_is_null");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (key_part->null_bit)
+  {
+    if (*(*ptr)++)
+    {
+      if (sql_type == SPIDER_SQL_TYPE_HANDLER)
+      {
+        str = str_part;
+        if (
+          key_eq ||
+          key->flag == HA_READ_KEY_EXACT ||
+          key->flag == HA_READ_KEY_OR_NEXT
+        ) {
+          if (str->reserve(SPIDER_SQL_IS_NULL_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(SPIDER_SQL_IS_NULL_STR, SPIDER_SQL_IS_NULL_LEN);
+        } else {
+          str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+          ha_next_pos = str->length();
+          if (str->reserve(SPIDER_SQL_FIRST_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(SPIDER_SQL_FIRST_STR, SPIDER_SQL_FIRST_LEN);
+          spider->result_list.ha_read_kind = 1;
+        }
+        str = str_part2;
+      }
+      if (
+        key_eq ||
+        key->flag == HA_READ_KEY_EXACT ||
+        key->flag == HA_READ_KEY_OR_NEXT
+      ) {
+        if (str->reserve(SPIDER_SQL_IS_NULL_LEN +
+          /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+          oracle_share->column_name_str[key_part->field->field_index].length()))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        oracle_share->append_column_name(str, key_part->field->field_index);
+        str->q_append(SPIDER_SQL_IS_NULL_STR, SPIDER_SQL_IS_NULL_LEN);
+      } else {
+        if (str->reserve(SPIDER_SQL_IS_NOT_NULL_LEN +
+          /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+          oracle_share->column_name_str[key_part->field->field_index].length()))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        oracle_share->append_column_name(str, key_part->field->field_index);
+        str->q_append(SPIDER_SQL_IS_NOT_NULL_STR, SPIDER_SQL_IS_NOT_NULL_LEN);
+      }
+      DBUG_RETURN(-1);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_where_terminator_part(
+  ulong sql_type,
+  bool set_order,
+  int key_count
+) {
+  int error_num;
+  spider_string *str, *str_part = NULL, *str_part2 = NULL;
+  DBUG_ENTER("spider_oracle_handler::append_where_terminator_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &sql;
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      str = &update_sql;
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      str = &ha_sql;
+      str_part = &sql_part;
+      str_part2 = &sql_part2;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_where_terminator(sql_type, str, str_part, str_part2,
+    set_order, key_count);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_where_terminator(
+  ulong sql_type,
+  spider_string *str,
+  spider_string *str_part,
+  spider_string *str_part2,
+  bool set_order,
+  int key_count
+) {
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  DBUG_ENTER("spider_oracle_handler::append_where_terminator");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql_type != SPIDER_SQL_TYPE_HANDLER)
+  {
+    str->length(str->length() - SPIDER_SQL_AND_LEN);
+    if (!set_order)
+      result_list->key_order = key_count;
+  } else {
+    str_part2->length(str_part2->length() - SPIDER_SQL_AND_LEN);
+
+    str_part->length(str_part->length() - SPIDER_SQL_COMMA_LEN);
+    if (!result_list->ha_read_kind)
+      str_part->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+        SPIDER_SQL_CLOSE_PAREN_LEN);
+    if (str->append(*str_part))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    uint clause_length = str->length() - ha_next_pos;
+    if (clause_length < SPIDER_SQL_NEXT_LEN)
+    {
+      int roop_count;
+      clause_length = SPIDER_SQL_NEXT_LEN - clause_length;
+      if (str->reserve(clause_length))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      for (roop_count = 0; roop_count < (int) clause_length; roop_count++)
+        str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_match_where_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_match_where_part");
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_ASSERT(0);
+      DBUG_RETURN(0);
+  }
+  error_num = append_match_where(str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_match_where(
+  spider_string *str
+) {
+  int error_num;
+  bool first = TRUE;
+  st_spider_ft_info *ft_info = spider->ft_first;
+  DBUG_ENTER("spider_oracle_handler::append_match_where");
+  if (spider->ft_current)
+  {
+    while (TRUE)
+    {
+      if (ft_info->used_in_where)
+      {
+        if (first)
+        {
+          if (str->reserve(SPIDER_SQL_WHERE_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(SPIDER_SQL_WHERE_STR, SPIDER_SQL_WHERE_LEN);
+          first = FALSE;
+        }
+        if ((error_num = append_match_against(str, ft_info, NULL, 0)))
+          DBUG_RETURN(error_num);
+        if (str->reserve(SPIDER_SQL_AND_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_AND_STR, SPIDER_SQL_AND_LEN);
+      }
+
+      if (ft_info == spider->ft_current)
+        break;
+      ft_info = ft_info->next;
+    }
+    if (!first)
+      str->length(str->length() - SPIDER_SQL_AND_LEN);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_update_where(
+  spider_string *str,
+  const TABLE *table,
+  my_ptrdiff_t ptr_diff
+) {
+  uint field_name_length;
+  Field **field;
+  THD *thd = spider->wide_handler->trx->thd;
+  SPIDER_SHARE *share = spider->share;
+  bool no_pk = (table->s->primary_key == MAX_KEY);
+  DBUG_ENTER("spider_oracle_handler::append_update_where");
+  uint str_len_bakup = str->length();
+  if (str->reserve(SPIDER_SQL_WHERE_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_WHERE_STR, SPIDER_SQL_WHERE_LEN);
+  if (
+    no_pk ||
+    spider_param_use_cond_other_than_pk_for_update(thd)
+  ) {
+    for (field = table->field; *field; field++)
+    {
+      if (
+        no_pk ||
+        bitmap_is_set(table->read_set, (*field)->field_index)
+      ) {
+        field_name_length =
+          oracle_share->column_name_str[(*field)->field_index].length();
+        if ((*field)->is_null(ptr_diff))
+        {
+          if (str->reserve(field_name_length +
+            /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+            SPIDER_SQL_IS_NULL_LEN + SPIDER_SQL_AND_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          oracle_share->append_column_name(str, (*field)->field_index);
+          str->q_append(SPIDER_SQL_IS_NULL_STR, SPIDER_SQL_IS_NULL_LEN);
+        } else {
+          if (str->reserve(field_name_length +
+            /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+            SPIDER_SQL_EQUAL_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          oracle_share->append_column_name(str, (*field)->field_index);
+          str->q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+          (*field)->move_field_offset(ptr_diff);
+          if (
+            spider_db_oracle_utility.
+              append_column_value(spider, str, *field, NULL,
+                share->access_charset) ||
+            str->reserve(SPIDER_SQL_AND_LEN)
+          )
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          (*field)->move_field_offset(-ptr_diff);
+        }
+        str->q_append(SPIDER_SQL_AND_STR, SPIDER_SQL_AND_LEN);
+      }
+    }
+  } else {
+    KEY *key_info = &table->key_info[table->s->primary_key];
+    KEY_PART_INFO *key_part;
+    uint part_num;
+    for (
+      key_part = key_info->key_part, part_num = 0;
+      part_num < spider_user_defined_key_parts(key_info);
+      key_part++, part_num++
+    ) {
+      field = &key_part->field;
+      field_name_length =
+        oracle_share->column_name_str[(*field)->field_index].length();
+      if ((*field)->is_null(ptr_diff))
+      {
+        if (str->reserve(field_name_length +
+          /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+          SPIDER_SQL_IS_NULL_LEN + SPIDER_SQL_AND_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        oracle_share->append_column_name(str, (*field)->field_index);
+        str->q_append(SPIDER_SQL_IS_NULL_STR, SPIDER_SQL_IS_NULL_LEN);
+      } else {
+        if (str->reserve(field_name_length +
+          /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+          SPIDER_SQL_EQUAL_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        oracle_share->append_column_name(str, (*field)->field_index);
+        str->q_append(SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN);
+        (*field)->move_field_offset(ptr_diff);
+        if (
+          spider_db_oracle_utility.
+            append_column_value(spider, str, *field, NULL,
+              share->access_charset) ||
+          str->reserve(SPIDER_SQL_AND_LEN)
+        )
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        (*field)->move_field_offset(-ptr_diff);
+      }
+      str->q_append(SPIDER_SQL_AND_STR, SPIDER_SQL_AND_LEN);
+    }
+  }
+  if (str->length() == str_len_bakup + SPIDER_SQL_WHERE_LEN)
+  {
+    /* no condition */
+    str->length(str_len_bakup);
+  } else {
+    str->length(str->length() - SPIDER_SQL_AND_LEN);
+  }
+  if (str->reserve(SPIDER_SQL_LIMIT1_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_LIMIT1_STR, SPIDER_SQL_LIMIT1_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_condition_part(
+  const char *alias,
+  uint alias_length,
+  ulong sql_type,
+  bool test_flg
+) {
+  int error_num;
+  spider_string *str;
+  bool start_where = FALSE;
+  DBUG_ENTER("spider_oracle_handler::append_condition_part");
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      DBUG_PRINT("info",("spider case1 sql_type=%lu", sql_type));
+      if (test_flg)
+      {
+        str = NULL;
+      } else {
+        str = &sql;
+        start_where = ((int) str->length() == where_pos);
+      }
+      break;
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      DBUG_PRINT("info",("spider case1 sql_type=%lu", sql_type));
+      if (test_flg)
+      {
+        str = NULL;
+      } else {
+        str = &tmp_sql;
+        start_where = ((int) str->length() == where_pos);
+      }
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      DBUG_PRINT("info",("spider case2 sql_type=%lu", sql_type));
+      if (test_flg)
+      {
+        str = NULL;
+      } else {
+        str = &update_sql;
+        start_where = ((int) str->length() == where_pos);
+      }
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      DBUG_PRINT("info",("spider case3 sql_type=%lu", sql_type));
+      if (test_flg)
+      {
+        str = NULL;
+      } else {
+        str = &ha_sql;
+        start_where = TRUE;
+        if (spider->active_index == MAX_KEY)
+        {
+          set_where_pos(SPIDER_SQL_TYPE_HANDLER);
+          if (str->reserve(SPIDER_SQL_READ_LEN + SPIDER_SQL_FIRST_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(SPIDER_SQL_READ_STR, SPIDER_SQL_READ_LEN);
+          ha_next_pos = str->length();
+          str->q_append(SPIDER_SQL_FIRST_STR, SPIDER_SQL_FIRST_LEN);
+          sql_part2.length(0);
+        }
+        ha_where_pos = str->length();
+
+        if (sql_part2.length())
+        {
+          str->append(sql_part2);
+          start_where = FALSE;
+        }
+      }
+      break;
+    default:
+      DBUG_PRINT("info",("spider default sql_type=%lu", sql_type));
+      DBUG_RETURN(0);
+  }
+  error_num = append_condition(str, alias, alias_length, start_where,
+    sql_type);
+  DBUG_PRINT("info",("spider str=%s", str ? str->c_ptr_safe() : "NULL"));
+  DBUG_PRINT("info",("spider length=%u", str ? str->length() : 0));
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_condition(
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  bool start_where,
+  ulong sql_type
+) {
+  int error_num, restart_pos = 0, start_where_pos;
+  SPIDER_CONDITION *tmp_cond = spider->condition;
+  DBUG_ENTER("spider_oracle_handler::append_condition");
+  DBUG_PRINT("info",("spider str=%p", str));
+  DBUG_PRINT("info",("spider alias=%p", alias));
+  DBUG_PRINT("info",("spider alias_length=%u", alias_length));
+  DBUG_PRINT("info",("spider start_where=%s", start_where ? "TRUE" : "FALSE"));
+  DBUG_PRINT("info",("spider sql_type=%lu", sql_type));
+  if (str && start_where)
+  {
+    start_where_pos = str->length();
+  } else {
+    start_where_pos = 0;
+  }
+
+  if (spider->is_clone && !tmp_cond)
+  {
+    tmp_cond = spider->pt_clone_source_handler->condition;
+  }
+
+  while (tmp_cond)
+  {
+    if (str)
+    {
+      restart_pos = str->length();
+      if (start_where)
+      {
+        if (str->reserve(SPIDER_SQL_WHERE_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_WHERE_STR, SPIDER_SQL_WHERE_LEN);
+        start_where = FALSE;
+      } else {
+        if (str->reserve(SPIDER_SQL_AND_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_AND_STR, SPIDER_SQL_AND_LEN);
+      }
+    }
+    if ((error_num = spider_db_print_item_type(
+      (Item *) tmp_cond->cond, NULL, spider, str, alias, alias_length,
+      spider_dbton_oracle.dbton_id, FALSE, NULL)))
+    {
+      if (str && error_num == ER_SPIDER_COND_SKIP_NUM)
+      {
+        DBUG_PRINT("info",("spider COND skip"));
+        str->length(restart_pos);
+        start_where = (restart_pos == start_where_pos);
+      } else
+        DBUG_RETURN(error_num);
+    }
+    tmp_cond = tmp_cond->next;
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_match_against_part(
+  ulong sql_type,
+  st_spider_ft_info *ft_info,
+  const char *alias,
+  uint alias_length
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_match_against_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_match_against(str, ft_info, alias, alias_length);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_match_against(
+  spider_string *str,
+  st_spider_ft_info  *ft_info,
+  const char *alias,
+  uint alias_length
+) {
+  SPIDER_SHARE *share = spider->share;
+  TABLE *table = spider->get_table();
+  String *ft_init_key;
+  KEY *key_info;
+  uint key_name_length;
+  int key_count;
+  KEY_PART_INFO *key_part;
+  Field *field;
+  DBUG_ENTER("spider_oracle_handler::append_match_against");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_MATCH_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_MATCH_STR, SPIDER_SQL_MATCH_LEN);
+
+  ft_init_key = ft_info->key;
+  key_info = &table->key_info[ft_info->inx];
+  DBUG_PRINT("info", ("spider spider_user_defined_key_parts=%u",
+    spider_user_defined_key_parts(key_info)));
+
+  for (
+    key_part = key_info->key_part,
+    key_count = 0;
+    key_count < (int) spider_user_defined_key_parts(key_info);
+    key_part++,
+    key_count++
+  ) {
+    field = key_part->field;
+    key_name_length =
+      oracle_share->column_name_str[field->field_index].length();
+    if (alias_length)
+    {
+      if (str->reserve(alias_length + key_name_length +
+        /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_COMMA_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(alias, alias_length);
+    } else {
+      if (str->reserve(key_name_length +
+        /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_COMMA_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    oracle_share->append_column_name(str, field->field_index);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+  str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  if (str->reserve(SPIDER_SQL_AGAINST_LEN + SPIDER_SQL_VALUE_QUOTE_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_AGAINST_STR, SPIDER_SQL_AGAINST_LEN);
+  str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+
+  char buf[MAX_FIELD_WIDTH];
+  spider_string tmp_str(buf, MAX_FIELD_WIDTH, share->access_charset);
+  tmp_str.init_calc_mem(211);
+  tmp_str.length(0);
+  if (
+    tmp_str.append(ft_init_key->ptr(), ft_init_key->length(),
+      ft_init_key->charset()) ||
+    str->reserve(tmp_str.length() * 2) ||
+    spider_db_oracle_utility.append_escaped_util(str, tmp_str.get_str())
+  )
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+
+  if (str->reserve(
+    SPIDER_SQL_VALUE_QUOTE_LEN + SPIDER_SQL_CLOSE_PAREN_LEN +
+    ((ft_info->flags & FT_BOOL) ? SPIDER_SQL_IN_BOOLEAN_MODE_LEN : 0) +
+    ((ft_info->flags & FT_EXPAND) ?
+      SPIDER_SQL_WITH_QUERY_EXPANSION_LEN : 0)
+  ))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+  if (ft_info->flags & FT_BOOL)
+    str->q_append(SPIDER_SQL_IN_BOOLEAN_MODE_STR,
+      SPIDER_SQL_IN_BOOLEAN_MODE_LEN);
+  if (ft_info->flags & FT_EXPAND)
+    str->q_append(SPIDER_SQL_WITH_QUERY_EXPANSION_STR,
+      SPIDER_SQL_WITH_QUERY_EXPANSION_LEN);
+  str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_match_select_part(
+  ulong sql_type,
+  const char *alias,
+  uint alias_length
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_match_select_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_match_select(str, alias, alias_length);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_match_select(
+  spider_string *str,
+  const char *alias,
+  uint alias_length
+) {
+  int error_num;
+  DBUG_ENTER("spider_oracle_handler::append_match_select");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (spider->ft_current)
+  {
+    st_spider_ft_info *ft_info = spider->ft_first;
+    while (TRUE)
+    {
+      if ((error_num = append_match_against(str, ft_info,
+        alias, alias_length)))
+        DBUG_RETURN(error_num);
+      if (str->reserve(SPIDER_SQL_COMMA_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+      if (ft_info == spider->ft_current)
+        break;
+      ft_info = ft_info->next;
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+int spider_oracle_handler::append_sum_select_part(
+  ulong sql_type,
+  const char *alias,
+  uint alias_length
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_sum_select_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_sum_select(str, alias, alias_length);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_sum_select(
+  spider_string *str,
+  const char *alias,
+  uint alias_length
+) {
+  int error_num;
+  st_select_lex *select_lex;
+  DBUG_ENTER("spider_oracle_handler::append_sum_select");
+  DBUG_PRINT("info",("spider this=%p", this));
+  select_lex = spider_get_select_lex(spider);
+  JOIN *join = select_lex->join;
+  Item_sum **item_sum_ptr;
+  for (item_sum_ptr = join->sum_funcs; *item_sum_ptr; ++item_sum_ptr)
+  {
+    if ((error_num = spider_db_oracle_utility.open_item_sum_func(*item_sum_ptr,
+      spider, str, alias, alias_length, FALSE, NULL)))
+    {
+      DBUG_RETURN(error_num);
+    }
+    if (str->reserve(SPIDER_SQL_COMMA_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+  DBUG_RETURN(0);
+}
+#endif
+
+void spider_oracle_handler::set_order_pos(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_oracle_handler::set_order_pos");
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      order_pos = sql.length();
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      order_pos = update_sql.length();
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      ha_next_pos = ha_sql.length();
+      break;
+    default:
+      DBUG_ASSERT(0);
+      break;
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_oracle_handler::set_order_to_pos(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_oracle_handler::set_order_to_pos");
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      sql.length(order_pos);
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      update_sql.length(order_pos);
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      ha_sql.length(ha_next_pos);
+      break;
+    default:
+      DBUG_ASSERT(0);
+      break;
+  }
+  DBUG_VOID_RETURN;
+}
+
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+int spider_oracle_handler::append_group_by_part(
+  const char *alias,
+  uint alias_length,
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_group_by_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &sql;
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      str = &update_sql;
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      str = &ha_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_group_by(str, alias, alias_length);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_group_by(
+  spider_string *str,
+  const char *alias,
+  uint alias_length
+) {
+  int error_num;
+  st_select_lex *select_lex;
+  DBUG_ENTER("spider_oracle_handler::append_group_by");
+  DBUG_PRINT("info",("spider this=%p", this));
+  select_lex = spider_get_select_lex(spider);
+  ORDER *group = (ORDER *) select_lex->group_list.first;
+  if (group)
+  {
+    if (str->reserve(SPIDER_SQL_GROUP_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_GROUP_STR, SPIDER_SQL_GROUP_LEN);
+    for (; group; group = group->next)
+    {
+      if ((error_num = spider_db_print_item_type((*group->item), NULL, spider,
+        str, alias, alias_length, spider_dbton_oracle.dbton_id, FALSE, NULL)))
+      {
+        DBUG_RETURN(error_num);
+      }
+      if (str->reserve(SPIDER_SQL_COMMA_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+    }
+    str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  }
+  DBUG_RETURN(0);
+}
+#endif
+
+int spider_oracle_handler::append_key_order_for_merge_with_alias_part(
+  const char *alias,
+  uint alias_length,
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_key_order_for_merge_with_alias_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &sql;
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      str = &update_sql;
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      str = &ha_sql;
+      ha_limit_pos = ha_sql.length();
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_key_order_for_merge_with_alias(str, alias, alias_length);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_key_order_for_merge_with_alias(
+  spider_string *str,
+  const char *alias,
+  uint alias_length
+) {
+  /* sort for index merge */
+  TABLE *table = spider->get_table();
+  int length;
+  Field *field;
+  uint key_name_length;
+  DBUG_ENTER("spider_oracle_handler::append_key_order_for_merge_with_alias");
+  DBUG_PRINT("info",("spider this=%p", this));
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  if (spider->result_list.direct_aggregate)
+  {
+    int error_num;
+    if ((error_num = append_group_by(str, alias, alias_length)))
+      DBUG_RETURN(error_num);
+  }
+#endif
+  if (
+    spider->result_list.direct_order_limit ||
+    spider->result_list.internal_limit < 9223372036854775807LL ||
+    spider->result_list.split_read < 9223372036854775807LL ||
+    spider->result_list.internal_offset
+  ) {
+    if (update_rownum_appended || select_rownum_appended)
+    {
+      if (str->reserve(SPIDER_SQL_SELECT_WRAPPER_TAIL_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_SELECT_WRAPPER_TAIL_STR,
+        SPIDER_SQL_SELECT_WRAPPER_TAIL_LEN);
+      order_pos = str->length();
+      limit_pos = str->length();
+      DBUG_RETURN(0);
+    }
+    sql_part.length(0);
+    if (str == &update_sql)
+    {
+      if (sql_part.reserve(str->length() + SPIDER_SQL_UPDATE_WRAPPER_HEAD_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      sql_part.q_append(str->ptr(), where_pos);
+      sql_part.q_append(SPIDER_SQL_UPDATE_WRAPPER_HEAD_STR,
+        SPIDER_SQL_UPDATE_WRAPPER_HEAD_LEN);
+    } else {
+      if (sql_part.reserve(str->length() + SPIDER_SQL_SELECT_WRAPPER_HEAD_LEN +
+        SPIDER_SQL_ROW_NUMBER_HEAD_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      sql_part.q_append(SPIDER_SQL_SELECT_WRAPPER_HEAD_STR,
+        SPIDER_SQL_SELECT_WRAPPER_HEAD_LEN);
+      sql_part.q_append(str->ptr(), table_name_pos - SPIDER_SQL_FROM_LEN);
+      sql_part.q_append(SPIDER_SQL_ROW_NUMBER_HEAD_STR,
+        SPIDER_SQL_ROW_NUMBER_HEAD_LEN);
+    }
+    if (table->s->primary_key < MAX_KEY)
+    {
+      /* sort by primary key */
+      KEY *key_info = &table->key_info[table->s->primary_key];
+      KEY_PART_INFO *key_part;
+      for (
+        key_part = key_info->key_part,
+        length = 1;
+        length <= (int) spider_user_defined_key_parts(key_info);
+        key_part++,
+        length++
+      ) {
+        field = key_part->field;
+        key_name_length =
+          oracle_share->column_name_str[field->field_index].length();
+        if (sql_part.reserve(alias_length + key_name_length +
+          /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_COMMA_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        sql_part.q_append(alias, alias_length);
+        oracle_share->append_column_name(&sql_part, field->field_index);
+        sql_part.q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+      }
+    } else {
+      /* sort by all columns */
+      Field **fieldp;
+      for (
+        fieldp = table->field, length = 1;
+        *fieldp;
+        fieldp++, length++
+      ) {
+        key_name_length =
+          oracle_share->column_name_str[(*fieldp)->field_index].length();
+        if (sql_part.reserve(alias_length + key_name_length +
+          /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_COMMA_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        sql_part.q_append(alias, alias_length);
+        oracle_share->append_column_name(&sql_part, (*fieldp)->field_index);
+        sql_part.q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+      }
+    }
+    uint pos_diff;
+    if (str == &update_sql)
+    {
+      uint table_name_size = (update_set_pos ? update_set_pos : where_pos) -
+        table_name_pos;
+      if (sql_part.reserve(SPIDER_SQL_ROW_NUMBER_TAIL_LEN +
+        SPIDER_SQL_SELECT_WRAPPER_TAIL_LEN + str->length() - where_pos +
+        SPIDER_SQL_FROM_LEN + table_name_size))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      sql_part.q_append(SPIDER_SQL_ROW_NUMBER_TAIL_STR,
+        SPIDER_SQL_ROW_NUMBER_TAIL_LEN);
+      sql_part.q_append(SPIDER_SQL_FROM_STR, SPIDER_SQL_FROM_LEN);
+      sql_part.q_append(str->ptr() + table_name_pos, table_name_size);
+      pos_diff = sql_part.length() - where_pos;
+      sql_part.q_append(str->ptr() + where_pos, str->length() - where_pos);
+      sql_part.q_append(SPIDER_SQL_SELECT_WRAPPER_TAIL_STR,
+        SPIDER_SQL_SELECT_WRAPPER_TAIL_LEN);
+      update_rownum_appended = TRUE;
+    } else {
+      if (sql_part.reserve(SPIDER_SQL_ROW_NUMBER_TAIL_LEN +
+        SPIDER_SQL_SELECT_WRAPPER_TAIL_LEN + str->length() - table_name_pos +
+        SPIDER_SQL_FROM_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      sql_part.q_append(SPIDER_SQL_ROW_NUMBER_TAIL_STR,
+        SPIDER_SQL_ROW_NUMBER_TAIL_LEN);
+      pos_diff = sql_part.length() + SPIDER_SQL_FROM_LEN - table_name_pos;
+      sql_part.q_append(str->ptr() + table_name_pos - SPIDER_SQL_FROM_LEN,
+        str->length() - table_name_pos + SPIDER_SQL_FROM_LEN);
+      sql_part.q_append(SPIDER_SQL_SELECT_WRAPPER_TAIL_STR,
+        SPIDER_SQL_SELECT_WRAPPER_TAIL_LEN);
+      select_rownum_appended = TRUE;
+      table_name_pos = table_name_pos + pos_diff;
+    }
+    if (str->copy(sql_part))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    where_pos = where_pos + pos_diff;
+    order_pos = str->length();
+    limit_pos = str->length();
+    DBUG_RETURN(0);
+  }
+  if (table->s->primary_key < MAX_KEY)
+  {
+    /* sort by primary key */
+    KEY *key_info = &table->key_info[table->s->primary_key];
+    KEY_PART_INFO *key_part;
+    for (
+      key_part = key_info->key_part,
+      length = 1;
+      length <= (int) spider_user_defined_key_parts(key_info);
+      key_part++,
+      length++
+    ) {
+      field = key_part->field;
+      key_name_length =
+        oracle_share->column_name_str[field->field_index].length();
+      if (length == 1)
+      {
+        if (str->reserve(SPIDER_SQL_ORDER_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_ORDER_STR, SPIDER_SQL_ORDER_LEN);
+      }
+      if (str->reserve(alias_length + key_name_length +
+        /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_COMMA_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(alias, alias_length);
+      oracle_share->append_column_name(str, field->field_index);
+      str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+    }
+    if (length > 1)
+    {
+      str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+    }
+  } else {
+    /* sort by all columns */
+    Field **fieldp;
+    for (
+      fieldp = table->field, length = 1;
+      *fieldp;
+      fieldp++, length++
+    ) {
+      key_name_length =
+        oracle_share->column_name_str[(*fieldp)->field_index].length();
+      if (length == 1)
+      {
+        if (str->reserve(SPIDER_SQL_ORDER_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_ORDER_STR, SPIDER_SQL_ORDER_LEN);
+      }
+      if (str->reserve(alias_length + key_name_length +
+        /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_COMMA_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(alias, alias_length);
+      oracle_share->append_column_name(str, (*fieldp)->field_index);
+      str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+    }
+    if (length > 1)
+    {
+      str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+    }
+  }
+  limit_pos = str->length();
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_key_order_for_direct_order_limit_with_alias_part(
+  const char *alias,
+  uint alias_length,
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_key_order_for_direct_order_limit_with_alias_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &sql;
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      str = &update_sql;
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      str = &ha_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_key_order_for_direct_order_limit_with_alias(
+    str, alias, alias_length);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_key_order_for_direct_order_limit_with_alias(
+  spider_string *str,
+  const char *alias,
+  uint alias_length
+) {
+  int error_num;
+  ORDER *order;
+  st_select_lex *select_lex;
+  longlong select_limit;
+  longlong offset_limit;
+  DBUG_ENTER("spider_oracle_handler::append_key_order_for_direct_order_limit_with_alias");
+  DBUG_PRINT("info",("spider this=%p", this));
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  if (spider->result_list.direct_aggregate)
+  {
+    if ((error_num = append_group_by(str, alias, alias_length)))
+      DBUG_RETURN(error_num);
+  }
+#endif
+  spider_get_select_limit(spider, &select_lex, &select_limit,
+    &offset_limit);
+  if (
+    spider->result_list.direct_order_limit ||
+    spider->result_list.internal_limit < 9223372036854775807LL ||
+    spider->result_list.split_read < 9223372036854775807LL ||
+    spider->result_list.internal_offset
+  ) {
+    if (update_rownum_appended || select_rownum_appended)
+    {
+      if (str->reserve(SPIDER_SQL_SELECT_WRAPPER_TAIL_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_SELECT_WRAPPER_TAIL_STR,
+        SPIDER_SQL_SELECT_WRAPPER_TAIL_LEN);
+      order_pos = str->length();
+      limit_pos = str->length();
+      DBUG_RETURN(0);
+    }
+    sql_part.length(0);
+    if (str == &update_sql)
+    {
+      if (sql_part.reserve(str->length() + SPIDER_SQL_UPDATE_WRAPPER_HEAD_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      sql_part.q_append(str->ptr(), where_pos);
+      sql_part.q_append(SPIDER_SQL_UPDATE_WRAPPER_HEAD_STR,
+        SPIDER_SQL_UPDATE_WRAPPER_HEAD_LEN);
+    } else {
+      if (sql_part.reserve(str->length() + SPIDER_SQL_SELECT_WRAPPER_HEAD_LEN +
+        SPIDER_SQL_ROW_NUMBER_HEAD_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      sql_part.q_append(SPIDER_SQL_SELECT_WRAPPER_HEAD_STR,
+        SPIDER_SQL_SELECT_WRAPPER_HEAD_LEN);
+      sql_part.q_append(str->ptr(), table_name_pos - SPIDER_SQL_FROM_LEN);
+      sql_part.q_append(SPIDER_SQL_ROW_NUMBER_HEAD_STR,
+        SPIDER_SQL_ROW_NUMBER_HEAD_LEN);
+    }
+    bool all_desc = TRUE;
+    if (select_lex->order_list.first)
+    {
+      for (order = (ORDER *) select_lex->order_list.first; order;
+        order = order->next)
+      {
+        if ((error_num =
+          spider_db_print_item_type((*order->item), NULL, spider, &sql_part,
+            alias, alias_length, spider_dbton_oracle.dbton_id, FALSE, NULL)))
+        {
+          DBUG_PRINT("info",("spider error=%d", error_num));
+          DBUG_RETURN(error_num);
+        }
+        if (SPIDER_order_direction_is_asc(order))
+        {
+          if (sql_part.reserve(SPIDER_SQL_COMMA_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          sql_part.q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+          all_desc = FALSE;
+        } else {
+          if (sql_part.reserve(SPIDER_SQL_DESC_LEN + SPIDER_SQL_COMMA_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          sql_part.q_append(SPIDER_SQL_DESC_STR, SPIDER_SQL_DESC_LEN);
+          sql_part.q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+        }
+      }
+    } else {
+      all_desc = FALSE;
+    }
+    uint pos_diff;
+    if (str == &update_sql)
+    {
+      uint table_name_size = (update_set_pos ? update_set_pos : where_pos) -
+        table_name_pos;
+      if (all_desc)
+      {
+        if (sql_part.reserve(SPIDER_SQL_ROW_NUMBER_DESC_TAIL_LEN +
+          SPIDER_SQL_SELECT_WRAPPER_TAIL_LEN + str->length() - where_pos +
+          SPIDER_SQL_FROM_LEN + table_name_size))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        sql_part.q_append(SPIDER_SQL_ROW_NUMBER_DESC_TAIL_STR,
+          SPIDER_SQL_ROW_NUMBER_DESC_TAIL_LEN);
+      } else {
+        if (sql_part.reserve(SPIDER_SQL_ROW_NUMBER_TAIL_LEN +
+          SPIDER_SQL_SELECT_WRAPPER_TAIL_LEN + str->length() - where_pos +
+          SPIDER_SQL_FROM_LEN + table_name_size))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        sql_part.q_append(SPIDER_SQL_ROW_NUMBER_TAIL_STR,
+          SPIDER_SQL_ROW_NUMBER_TAIL_LEN);
+      }
+      sql_part.q_append(SPIDER_SQL_FROM_STR, SPIDER_SQL_FROM_LEN);
+      sql_part.q_append(str->ptr() + table_name_pos, table_name_size);
+      pos_diff = sql_part.length() - where_pos;
+      sql_part.q_append(str->ptr() + where_pos, str->length() - where_pos);
+      sql_part.q_append(SPIDER_SQL_SELECT_WRAPPER_TAIL_STR,
+        SPIDER_SQL_SELECT_WRAPPER_TAIL_LEN);
+      update_rownum_appended = TRUE;
+    } else {
+      if (all_desc)
+      {
+        if (sql_part.reserve(SPIDER_SQL_ROW_NUMBER_DESC_TAIL_LEN +
+          SPIDER_SQL_SELECT_WRAPPER_TAIL_LEN + str->length() - table_name_pos +
+          SPIDER_SQL_FROM_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        sql_part.q_append(SPIDER_SQL_ROW_NUMBER_DESC_TAIL_STR,
+          SPIDER_SQL_ROW_NUMBER_DESC_TAIL_LEN);
+      } else {
+        if (sql_part.reserve(SPIDER_SQL_ROW_NUMBER_TAIL_LEN +
+          SPIDER_SQL_SELECT_WRAPPER_TAIL_LEN + str->length() - table_name_pos +
+          SPIDER_SQL_FROM_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        sql_part.q_append(SPIDER_SQL_ROW_NUMBER_TAIL_STR,
+          SPIDER_SQL_ROW_NUMBER_TAIL_LEN);
+      }
+      pos_diff = sql_part.length() + SPIDER_SQL_FROM_LEN - table_name_pos;
+      sql_part.q_append(str->ptr() + table_name_pos - SPIDER_SQL_FROM_LEN,
+        str->length() - table_name_pos + SPIDER_SQL_FROM_LEN);
+      sql_part.q_append(SPIDER_SQL_SELECT_WRAPPER_TAIL_STR,
+        SPIDER_SQL_SELECT_WRAPPER_TAIL_LEN);
+      select_rownum_appended = TRUE;
+      table_name_pos = table_name_pos + pos_diff;
+    }
+    if (str->copy(sql_part))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    where_pos = where_pos + pos_diff;
+    order_pos = str->length();
+    limit_pos = str->length();
+    DBUG_RETURN(0);
+  }
+  if (select_lex->order_list.first)
+  {
+    if (str->reserve(SPIDER_SQL_ORDER_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_ORDER_STR, SPIDER_SQL_ORDER_LEN);
+    for (order = (ORDER *) select_lex->order_list.first; order;
+      order = order->next)
+    {
+      if ((error_num =
+        spider_db_print_item_type((*order->item), NULL, spider, str, alias,
+          alias_length, spider_dbton_oracle.dbton_id, FALSE, NULL)))
+      {
+        DBUG_PRINT("info",("spider error=%d", error_num));
+        DBUG_RETURN(error_num);
+      }
+      if (SPIDER_order_direction_is_asc(order))
+      {
+        if (str->reserve(SPIDER_SQL_COMMA_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+      } else {
+        if (str->reserve(SPIDER_SQL_DESC_LEN + SPIDER_SQL_COMMA_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_DESC_STR, SPIDER_SQL_DESC_LEN);
+        str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+      }
+    }
+    str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  }
+  limit_pos = str->length();
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_key_order_with_alias_part(
+  const char *alias,
+  uint alias_length,
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_key_order_with_alias_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &sql;
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      str = &update_sql;
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      str = &ha_sql;
+      error_num = append_key_order_for_handler(str, alias, alias_length);
+      DBUG_RETURN(error_num);
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_key_order_with_alias(str, alias, alias_length);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_key_order_for_handler(
+  spider_string *str,
+  const char *alias,
+  uint alias_length
+) {
+  DBUG_ENTER("spider_oracle_handler::append_key_order_for_handler");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider ha_next_pos=%d", ha_next_pos));
+  DBUG_PRINT("info",("spider ha_where_pos=%d", ha_where_pos));
+  str->q_append(alias, alias_length);
+  memset((char *) str->ptr() + str->length(), ' ',
+    ha_where_pos - ha_next_pos - alias_length);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_key_order_with_alias(
+  spider_string *str,
+  const char *alias,
+  uint alias_length
+) {
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  KEY *key_info = result_list->key_info;
+  int length;
+  KEY_PART_INFO *key_part;
+  Field *field;
+  uint key_name_length;
+  DBUG_ENTER("spider_oracle_handler::append_key_order_with_alias");
+  DBUG_PRINT("info",("spider this=%p", this));
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  if (spider->result_list.direct_aggregate)
+  {
+    int error_num;
+    if ((error_num = append_group_by(str, alias, alias_length)))
+      DBUG_RETURN(error_num);
+  }
+#endif
+  if (
+    spider->result_list.direct_order_limit ||
+    spider->result_list.internal_limit < 9223372036854775807LL ||
+    spider->result_list.split_read < 9223372036854775807LL ||
+    spider->result_list.internal_offset
+  ) {
+    if (update_rownum_appended || select_rownum_appended)
+    {
+      if (str->reserve(SPIDER_SQL_SELECT_WRAPPER_TAIL_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_SELECT_WRAPPER_TAIL_STR,
+        SPIDER_SQL_SELECT_WRAPPER_TAIL_LEN);
+      order_pos = str->length();
+      limit_pos = str->length();
+      DBUG_RETURN(0);
+    }
+    sql_part.length(0);
+    if (str == &update_sql)
+    {
+      if (sql_part.reserve(str->length() + SPIDER_SQL_UPDATE_WRAPPER_HEAD_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      sql_part.q_append(str->ptr(), where_pos);
+      sql_part.q_append(SPIDER_SQL_UPDATE_WRAPPER_HEAD_STR,
+        SPIDER_SQL_UPDATE_WRAPPER_HEAD_LEN);
+    } else {
+      if (sql_part.reserve(str->length() + SPIDER_SQL_SELECT_WRAPPER_HEAD_LEN +
+        SPIDER_SQL_ROW_NUMBER_HEAD_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      sql_part.q_append(SPIDER_SQL_SELECT_WRAPPER_HEAD_STR,
+        SPIDER_SQL_SELECT_WRAPPER_HEAD_LEN);
+      sql_part.q_append(str->ptr(), table_name_pos - SPIDER_SQL_FROM_LEN);
+      sql_part.q_append(SPIDER_SQL_ROW_NUMBER_HEAD_STR,
+        SPIDER_SQL_ROW_NUMBER_HEAD_LEN);
+    }
+    if (result_list->sorted == TRUE)
+    {
+      if (result_list->desc_flg == TRUE)
+      {
+        for (
+          key_part = key_info->key_part + result_list->key_order,
+          length = 1;
+          length + result_list->key_order <=
+            (int) spider_user_defined_key_parts(key_info) &&
+          length <= result_list->max_order;
+          key_part++,
+          length++
+        ) {
+          field = key_part->field;
+          key_name_length =
+            oracle_share->column_name_str[field->field_index].length();
+          if (key_part->key_part_flag & HA_REVERSE_SORT)
+          {
+            if (sql_part.reserve(alias_length + key_name_length +
+              /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_COMMA_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            sql_part.q_append(alias, alias_length);
+            oracle_share->append_column_name(&sql_part, field->field_index);
+            sql_part.q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+          } else {
+            if (sql_part.reserve(alias_length + key_name_length +
+              /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+              SPIDER_SQL_DESC_LEN + SPIDER_SQL_COMMA_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            sql_part.q_append(alias, alias_length);
+            oracle_share->append_column_name(&sql_part, field->field_index);
+            sql_part.q_append(SPIDER_SQL_DESC_STR, SPIDER_SQL_DESC_LEN);
+            sql_part.q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+          }
+        }
+      } else {
+        for (
+          key_part = key_info->key_part + result_list->key_order,
+          length = 1;
+          length + result_list->key_order <=
+            (int) spider_user_defined_key_parts(key_info) &&
+          length <= result_list->max_order;
+          key_part++,
+          length++
+        ) {
+          field = key_part->field;
+          key_name_length =
+            oracle_share->column_name_str[field->field_index].length();
+          if (key_part->key_part_flag & HA_REVERSE_SORT)
+          {
+            if (sql_part.reserve(alias_length + key_name_length +
+              /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+              SPIDER_SQL_DESC_LEN + SPIDER_SQL_COMMA_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            sql_part.q_append(alias, alias_length);
+            oracle_share->append_column_name(&sql_part, field->field_index);
+            sql_part.q_append(SPIDER_SQL_DESC_STR, SPIDER_SQL_DESC_LEN);
+            sql_part.q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+          } else {
+            if (sql_part.reserve(alias_length + key_name_length +
+              /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_COMMA_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            sql_part.q_append(alias, alias_length);
+            oracle_share->append_column_name(&sql_part, field->field_index);
+            sql_part.q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+          }
+        }
+      }
+    }
+    uint pos_diff;
+    if (str == &update_sql)
+    {
+      uint table_name_size = (update_set_pos ? update_set_pos : where_pos) -
+        table_name_pos;
+      if (result_list->sorted == TRUE && result_list->desc_flg == TRUE)
+      {
+        if (sql_part.reserve(SPIDER_SQL_ROW_NUMBER_DESC_TAIL_LEN +
+          SPIDER_SQL_SELECT_WRAPPER_TAIL_LEN + str->length() - where_pos +
+          SPIDER_SQL_FROM_LEN + table_name_size))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        sql_part.q_append(SPIDER_SQL_ROW_NUMBER_DESC_TAIL_STR,
+          SPIDER_SQL_ROW_NUMBER_DESC_TAIL_LEN);
+      } else {
+        if (sql_part.reserve(SPIDER_SQL_ROW_NUMBER_TAIL_LEN +
+          SPIDER_SQL_SELECT_WRAPPER_TAIL_LEN + str->length() - where_pos +
+          SPIDER_SQL_FROM_LEN + table_name_size))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        sql_part.q_append(SPIDER_SQL_ROW_NUMBER_TAIL_STR,
+          SPIDER_SQL_ROW_NUMBER_TAIL_LEN);
+      }
+      sql_part.q_append(SPIDER_SQL_FROM_STR, SPIDER_SQL_FROM_LEN);
+      sql_part.q_append(str->ptr() + table_name_pos,
+        table_name_size);
+      pos_diff = sql_part.length() - where_pos;
+      sql_part.q_append(str->ptr() + where_pos, str->length() - where_pos);
+      sql_part.q_append(SPIDER_SQL_SELECT_WRAPPER_TAIL_STR,
+        SPIDER_SQL_SELECT_WRAPPER_TAIL_LEN);
+      update_rownum_appended = TRUE;
+    } else {
+      if (result_list->sorted == TRUE && result_list->desc_flg == TRUE)
+      {
+        if (sql_part.reserve(SPIDER_SQL_ROW_NUMBER_DESC_TAIL_LEN +
+          SPIDER_SQL_SELECT_WRAPPER_TAIL_LEN + str->length() - table_name_pos +
+          SPIDER_SQL_FROM_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        sql_part.q_append(SPIDER_SQL_ROW_NUMBER_DESC_TAIL_STR,
+          SPIDER_SQL_ROW_NUMBER_DESC_TAIL_LEN);
+      } else {
+        if (sql_part.reserve(SPIDER_SQL_ROW_NUMBER_TAIL_LEN +
+          SPIDER_SQL_SELECT_WRAPPER_TAIL_LEN + str->length() - table_name_pos +
+          SPIDER_SQL_FROM_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        sql_part.q_append(SPIDER_SQL_ROW_NUMBER_TAIL_STR,
+          SPIDER_SQL_ROW_NUMBER_TAIL_LEN);
+      }
+      pos_diff = sql_part.length() + SPIDER_SQL_FROM_LEN - table_name_pos;
+      sql_part.q_append(str->ptr() + table_name_pos - SPIDER_SQL_FROM_LEN,
+        str->length() - table_name_pos + SPIDER_SQL_FROM_LEN);
+      sql_part.q_append(SPIDER_SQL_SELECT_WRAPPER_TAIL_STR,
+        SPIDER_SQL_SELECT_WRAPPER_TAIL_LEN);
+      select_rownum_appended = TRUE;
+      table_name_pos = table_name_pos + pos_diff;
+    }
+    if (str->copy(sql_part))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    where_pos = where_pos + pos_diff;
+    order_pos = str->length();
+    limit_pos = str->length();
+    DBUG_RETURN(0);
+  }
+  if (result_list->sorted == TRUE)
+  {
+    if (result_list->desc_flg == TRUE)
+    {
+      for (
+        key_part = key_info->key_part + result_list->key_order,
+        length = 1;
+        length + result_list->key_order <
+          (int) spider_user_defined_key_parts(key_info) &&
+        length < result_list->max_order;
+        key_part++,
+        length++
+      ) {
+        field = key_part->field;
+        key_name_length =
+          oracle_share->column_name_str[field->field_index].length();
+        if (length == 1)
+        {
+          if (str->reserve(SPIDER_SQL_ORDER_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(SPIDER_SQL_ORDER_STR, SPIDER_SQL_ORDER_LEN);
+        }
+        if (key_part->key_part_flag & HA_REVERSE_SORT)
+        {
+          if (str->reserve(alias_length + key_name_length +
+            /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_COMMA_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(alias, alias_length);
+          oracle_share->append_column_name(str, field->field_index);
+          str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+        } else {
+          if (str->reserve(alias_length + key_name_length +
+            /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+            SPIDER_SQL_DESC_LEN + SPIDER_SQL_COMMA_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(alias, alias_length);
+          oracle_share->append_column_name(str, field->field_index);
+          str->q_append(SPIDER_SQL_DESC_STR, SPIDER_SQL_DESC_LEN);
+          str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+        }
+      }
+      if (
+        length + result_list->key_order <=
+          (int) spider_user_defined_key_parts(key_info) &&
+        length <= result_list->max_order
+      ) {
+        field = key_part->field;
+        key_name_length =
+          oracle_share->column_name_str[field->field_index].length();
+        if (length == 1)
+        {
+          if (str->reserve(SPIDER_SQL_ORDER_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(SPIDER_SQL_ORDER_STR, SPIDER_SQL_ORDER_LEN);
+        }
+        if (key_part->key_part_flag & HA_REVERSE_SORT)
+        {
+          if (str->reserve(alias_length + key_name_length +
+            /* SPIDER_SQL_NAME_QUOTE_LEN */ 2))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(alias, alias_length);
+          oracle_share->append_column_name(str, field->field_index);
+        } else {
+          if (str->reserve(alias_length + key_name_length +
+            /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_DESC_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(alias, alias_length);
+          oracle_share->append_column_name(str, field->field_index);
+          str->q_append(SPIDER_SQL_DESC_STR, SPIDER_SQL_DESC_LEN);
+        }
+      }
+    } else {
+      for (
+        key_part = key_info->key_part + result_list->key_order,
+        length = 1;
+        length + result_list->key_order <
+          (int) spider_user_defined_key_parts(key_info) &&
+        length < result_list->max_order;
+        key_part++,
+        length++
+      ) {
+        field = key_part->field;
+        key_name_length =
+          oracle_share->column_name_str[field->field_index].length();
+        if (length == 1)
+        {
+          if (str->reserve(SPIDER_SQL_ORDER_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(SPIDER_SQL_ORDER_STR, SPIDER_SQL_ORDER_LEN);
+        }
+        if (key_part->key_part_flag & HA_REVERSE_SORT)
+        {
+          if (str->reserve(alias_length + key_name_length +
+            /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+            SPIDER_SQL_DESC_LEN + SPIDER_SQL_COMMA_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(alias, alias_length);
+          oracle_share->append_column_name(str, field->field_index);
+          str->q_append(SPIDER_SQL_DESC_STR, SPIDER_SQL_DESC_LEN);
+          str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+        } else {
+          if (str->reserve(alias_length + key_name_length +
+            /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_COMMA_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(alias, alias_length);
+          oracle_share->append_column_name(str, field->field_index);
+          str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+        }
+      }
+      if (
+        length + result_list->key_order <=
+          (int) spider_user_defined_key_parts(key_info) &&
+        length <= result_list->max_order
+      ) {
+        field = key_part->field;
+        key_name_length =
+          oracle_share->column_name_str[field->field_index].length();
+        if (length == 1)
+        {
+          if (str->reserve(SPIDER_SQL_ORDER_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(SPIDER_SQL_ORDER_STR, SPIDER_SQL_ORDER_LEN);
+        }
+        if (key_part->key_part_flag & HA_REVERSE_SORT)
+        {
+          if (str->reserve(alias_length + key_name_length +
+            /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_DESC_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(alias, alias_length);
+          oracle_share->append_column_name(str, field->field_index);
+          str->q_append(SPIDER_SQL_DESC_STR, SPIDER_SQL_DESC_LEN);
+        } else {
+          if (str->reserve(alias_length + key_name_length +
+            /* SPIDER_SQL_NAME_QUOTE_LEN */ 2))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          str->q_append(alias, alias_length);
+          oracle_share->append_column_name(str, field->field_index);
+        }
+      }
+    }
+  }
+  limit_pos = str->length();
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_limit_part(
+  longlong offset,
+  longlong limit,
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_limit_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      limit_pos = str->length();
+      break;
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &tmp_sql;
+      limit_pos = str->length();
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      str = &update_sql;
+      limit_pos = str->length();
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      str = &ha_sql;
+      ha_limit_pos = str->length();
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_limit(str, offset, limit);
+  DBUG_PRINT("info",("spider str=%s", str->c_ptr_safe()));
+  DBUG_PRINT("info",("spider length=%u", str->length()));
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::reappend_limit_part(
+  longlong offset,
+  longlong limit,
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::reappend_limit_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      str->length(limit_pos);
+      break;
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &tmp_sql;
+      str->length(limit_pos);
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      str = &update_sql;
+      str->length(limit_pos);
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      str = &ha_sql;
+      str->length(ha_limit_pos);
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_limit(str, offset, limit);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_limit(
+  spider_string *str,
+  longlong offset,
+  longlong limit
+) {
+  char buf[SPIDER_LONGLONG_LEN + 1];
+  uint32 length;
+  DBUG_ENTER("spider_oracle_handler::append_limit");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info", ("spider offset=%lld", offset));
+  DBUG_PRINT("info", ("spider limit=%lld", limit));
+  if (offset || limit < 9223372036854775807LL)
+  {
+    if ((int) str->length() == where_pos)
+    {
+      if (offset)
+      {
+        int error_num;
+        if ((error_num = append_key_order_for_direct_order_limit_with_alias(
+          str, NULL, 0)))
+          DBUG_RETURN(error_num);
+      } else {
+        if (str->reserve(SPIDER_SQL_WHERE_LEN + SPIDER_SQL_ROWNUM_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_WHERE_STR, SPIDER_SQL_WHERE_LEN);
+        str->q_append(SPIDER_SQL_ROWNUM_STR, SPIDER_SQL_ROWNUM_LEN);
+      }
+    }
+    if (offset)
+    {
+      if (str->reserve(SPIDER_SQL_BETWEEN_LEN + SPIDER_SQL_AND_LEN +
+        ((SPIDER_LONGLONG_LEN) * 2)))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_BETWEEN_STR, SPIDER_SQL_BETWEEN_LEN);
+      length = (uint32) (my_charset_bin.longlong10_to_str)(
+        buf, SPIDER_LONGLONG_LEN + 1, -10, offset + 1);
+      str->q_append(buf, length);
+      str->q_append(SPIDER_SQL_AND_STR, SPIDER_SQL_AND_LEN);
+      length = (uint32) (my_charset_bin.longlong10_to_str)(
+        buf, SPIDER_LONGLONG_LEN + 1, -10, limit + offset);
+      str->q_append(buf, length);
+    } else {
+      if (str->reserve(SPIDER_SQL_HS_LTEQUAL_LEN +
+        (SPIDER_LONGLONG_LEN)))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_HS_LTEQUAL_STR, SPIDER_SQL_HS_LTEQUAL_LEN);
+      length = (uint32) (my_charset_bin.longlong10_to_str)(
+        buf, SPIDER_LONGLONG_LEN + 1, -10, limit);
+      str->q_append(buf, length);
+    }
+    if (update_rownum_appended)
+    {
+      if (str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_select_lock_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_select_lock_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_select_lock(str);
+  DBUG_PRINT("info",("spider str=%s", str->c_ptr_safe()));
+  DBUG_PRINT("info",("spider length=%u", str->length()));
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_select_lock(
+  spider_string *str
+) {
+  int lock_mode = spider_conn_lock_mode(spider);
+  DBUG_ENTER("spider_oracle_handler::append_select_lock");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (select_rownum_appended)
+  {
+    table_lock_mode = lock_mode;
+  } else {
+    if (lock_mode == SPIDER_LOCK_MODE_EXCLUSIVE)
+    {
+      if (str->reserve(SPIDER_SQL_FOR_UPDATE_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_FOR_UPDATE_STR, SPIDER_SQL_FOR_UPDATE_LEN);
+    } else if (lock_mode == SPIDER_LOCK_MODE_SHARED)
+    {
+      if (str->reserve(SPIDER_SQL_FOR_UPDATE_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_FOR_UPDATE_STR, SPIDER_SQL_FOR_UPDATE_LEN);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_union_all_start_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_union_all_start_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_union_all_start(str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_union_all_start(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_oracle_handler::append_union_all_start");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_OPEN_PAREN_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_union_all_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_union_all_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_union_all(str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_union_all(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_oracle_handler::append_union_all");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_UNION_ALL_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_UNION_ALL_STR, SPIDER_SQL_UNION_ALL_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_union_all_end_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_union_all_end_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_union_all_end(str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_union_all_end(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_oracle_handler::append_union_all_end");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str->length(str->length() -
+    SPIDER_SQL_UNION_ALL_LEN + SPIDER_SQL_CLOSE_PAREN_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_multi_range_cnt_part(
+  ulong sql_type,
+  uint multi_range_cnt,
+  bool with_comma
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_multi_range_cnt_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &tmp_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_multi_range_cnt(str, multi_range_cnt, with_comma);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_multi_range_cnt(
+  spider_string *str,
+  uint multi_range_cnt,
+  bool with_comma
+) {
+  int range_cnt_length;
+  char range_cnt_str[SPIDER_SQL_INT_LEN];
+  DBUG_ENTER("spider_oracle_handler::append_multi_range_cnt");
+  DBUG_PRINT("info",("spider this=%p", this));
+  range_cnt_length = my_sprintf(range_cnt_str, (range_cnt_str, "%u",
+    multi_range_cnt));
+  if (with_comma)
+  {
+    if (str->reserve(range_cnt_length + SPIDER_SQL_COMMA_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(range_cnt_str, range_cnt_length);
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  } else {
+    if (str->reserve(range_cnt_length))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(range_cnt_str, range_cnt_length);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_multi_range_cnt_with_name_part(
+  ulong sql_type,
+  uint multi_range_cnt
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_multi_range_cnt_with_name_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      str = &tmp_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_multi_range_cnt_with_name(str, multi_range_cnt);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_multi_range_cnt_with_name(
+  spider_string *str,
+  uint multi_range_cnt
+) {
+  int range_cnt_length;
+  char range_cnt_str[SPIDER_SQL_INT_LEN];
+  DBUG_ENTER("spider_oracle_handler::append_multi_range_cnt_with_name");
+  DBUG_PRINT("info",("spider this=%p", this));
+  range_cnt_length = my_sprintf(range_cnt_str, (range_cnt_str, "%u",
+    multi_range_cnt));
+  if (str->reserve(range_cnt_length + SPIDER_SQL_SPACE_LEN +
+    SPIDER_SQL_ID_LEN + SPIDER_SQL_COMMA_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(range_cnt_str, range_cnt_length);
+  str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+  str->q_append(SPIDER_SQL_ID_STR, SPIDER_SQL_ID_LEN);
+  str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_open_handler_part(
+  ulong sql_type,
+  uint handler_id,
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_open_handler_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_HANDLER:
+      str = &ha_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_open_handler(str, handler_id, conn, link_idx);
+  exec_ha_sql = str;
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_open_handler(
+  spider_string *str,
+  uint handler_id,
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  int error_num;
+  DBUG_ENTER("spider_oracle_handler::append_open_handler");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider link_idx=%d", link_idx));
+  DBUG_PRINT("info",("spider m_handler_cid=%s",
+    spider->m_handler_cid[link_idx]));
+  if (str->reserve(SPIDER_SQL_HANDLER_LEN))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str->q_append(SPIDER_SQL_HANDLER_STR, SPIDER_SQL_HANDLER_LEN);
+  if ((error_num = oracle_share->append_table_name(str,
+      spider->conn_link_idx[link_idx])))
+    DBUG_RETURN(error_num);
+  if (str->reserve(SPIDER_SQL_OPEN_LEN + SPIDER_SQL_AS_LEN +
+    SPIDER_SQL_HANDLER_CID_LEN))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str->q_append(SPIDER_SQL_OPEN_STR, SPIDER_SQL_OPEN_LEN);
+  str->q_append(SPIDER_SQL_AS_STR, SPIDER_SQL_AS_LEN);
+  str->q_append(spider->m_handler_cid[link_idx], SPIDER_SQL_HANDLER_CID_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_close_handler_part(
+  ulong sql_type,
+  int link_idx
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_close_handler_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_HANDLER:
+      str = &ha_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_close_handler(str, link_idx);
+  exec_ha_sql = str;
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_close_handler(
+  spider_string *str,
+  int link_idx
+) {
+  DBUG_ENTER("spider_oracle_handler::append_close_handler");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_HANDLER_LEN + SPIDER_SQL_CLOSE_LEN +
+    SPIDER_SQL_HANDLER_CID_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_HANDLER_STR, SPIDER_SQL_HANDLER_LEN);
+  str->q_append(spider->m_handler_cid[link_idx],
+    SPIDER_SQL_HANDLER_CID_LEN);
+  str->q_append(SPIDER_SQL_CLOSE_STR, SPIDER_SQL_CLOSE_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_insert_terminator_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_insert_terminator_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+      str = &insert_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_insert_terminator(str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_insert_terminator(
+  spider_string *str
+) {
+  DBUG_ENTER("spider_oracle_handler::append_insert_terminator");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (spider->result_list.insert_dup_update_pushdown)
+  {
+    DBUG_PRINT("info",("spider add duplicate key update"));
+    str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+    if (str->reserve(SPIDER_SQL_DUPLICATE_KEY_UPDATE_LEN +
+      dup_update_sql.length()))
+    {
+      str->length(0);
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_SQL_DUPLICATE_KEY_UPDATE_STR,
+      SPIDER_SQL_DUPLICATE_KEY_UPDATE_LEN);
+    if (str->append(dup_update_sql))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  } else {
+    str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_insert_values_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_insert_values_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+      str = &insert_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_insert_values(str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_insert_values(
+  spider_string *str
+) {
+  SPIDER_SHARE *share = spider->share;
+  TABLE *table = spider->get_table();
+  Field **field;
+  bool add_value = FALSE;
+  DBUG_ENTER("spider_oracle_handler::append_insert_values");
+  DBUG_PRINT("info",("spider this=%p", this));
+  nextval_pos = 0;
+  if (str->reserve(SPIDER_SQL_OPEN_PAREN_LEN))
+  {
+    str->length(0);
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  for (field = table->field; *field; field++)
+  {
+    DBUG_PRINT("info",("spider field_index=%u", (*field)->field_index));
+    if (
+      bitmap_is_set(table->write_set, (*field)->field_index) ||
+      bitmap_is_set(table->read_set, (*field)->field_index)
+    ) {
+#ifndef DBUG_OFF
+      my_bitmap_map *tmp_map =
+        dbug_tmp_use_all_columns(table, table->read_set);
+#endif
+      add_value = TRUE;
+      DBUG_PRINT("info",("spider is_null()=%s",
+        (*field)->is_null() ? "TRUE" : "FALSE"));
+      DBUG_PRINT("info",("spider table->next_number_field=%p",
+        table->next_number_field));
+      DBUG_PRINT("info",("spider *field=%p", *field));
+      DBUG_PRINT("info",("spider force_auto_increment=%s",
+        (table->next_number_field && spider->force_auto_increment) ?
+        "TRUE" : "FALSE"));
+      if (
+        table->next_number_field == *field &&
+        !table->auto_increment_field_not_null &&
+        !spider->force_auto_increment
+      ) {
+        nextval_pos = str->length();
+        if (str->reserve(oracle_share->nextval_max_length +
+          SPIDER_SQL_COMMA_LEN))
+        {
+#ifndef DBUG_OFF
+          dbug_tmp_restore_column_map(table->read_set, tmp_map);
+#endif
+          str->length(0);
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        str->length(str->length() + oracle_share->nextval_max_length);
+      } else if ((*field)->is_null())
+      {
+        if (str->reserve(SPIDER_SQL_NULL_LEN + SPIDER_SQL_COMMA_LEN))
+        {
+#ifndef DBUG_OFF
+          dbug_tmp_restore_column_map(table->read_set, tmp_map);
+#endif
+          str->length(0);
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        str->q_append(SPIDER_SQL_NULL_STR, SPIDER_SQL_NULL_LEN);
+      } else {
+        if (
+          spider_db_oracle_utility.
+            append_column_value(spider, str, *field, NULL,
+              share->access_charset) ||
+          str->reserve(SPIDER_SQL_COMMA_LEN)
+        ) {
+#ifndef DBUG_OFF
+          dbug_tmp_restore_column_map(table->read_set, tmp_map);
+#endif
+          str->length(0);
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+      }
+      str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+#ifndef DBUG_OFF
+      dbug_tmp_restore_column_map(table->read_set, tmp_map);
+#endif
+    }
+  }
+  if (add_value)
+    str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  if (str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN + SPIDER_SQL_COMMA_LEN))
+  {
+    str->length(0);
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+  str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_into_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_into_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+      str = &insert_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_into(str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_into(
+  spider_string *str
+) {
+  const TABLE *table = spider->get_table();
+  Field **field;
+  uint field_name_length = 0;
+  DBUG_ENTER("spider_oracle_handler::append_into");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_INTO_LEN + oracle_share->db_nm_max_length +
+    SPIDER_SQL_DOT_LEN + oracle_share->table_nm_max_length +
+    /* SPIDER_SQL_NAME_QUOTE_LEN */ 4 + SPIDER_SQL_OPEN_PAREN_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_INTO_STR, SPIDER_SQL_INTO_LEN);
+  insert_table_name_pos = str->length();
+  append_table_name_with_adjusting(str, first_link_idx,
+    SPIDER_SQL_TYPE_INSERT_SQL);
+  str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  for (field = table->field; *field; field++)
+  {
+    if (
+      bitmap_is_set(table->write_set, (*field)->field_index) ||
+      bitmap_is_set(table->read_set, (*field)->field_index)
+    ) {
+      field_name_length =
+        oracle_share->column_name_str[(*field)->field_index].length();
+      if (str->reserve(field_name_length +
+        /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 + SPIDER_SQL_COMMA_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      oracle_share->append_column_name(str, (*field)->field_index);
+      str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+    }
+  }
+  if (field_name_length)
+    str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  if (str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN + SPIDER_SQL_VALUES_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+  str->q_append(SPIDER_SQL_VALUES_STR, SPIDER_SQL_VALUES_LEN);
+  insert_pos = str->length();
+  DBUG_RETURN(0);
+}
+
+void spider_oracle_handler::set_insert_to_pos(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_oracle_handler::set_insert_to_pos");
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+      insert_sql.length(insert_pos);
+      break;
+    default:
+      DBUG_ASSERT(0);
+      break;
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_oracle_handler::append_from_part(
+  ulong sql_type,
+  int link_idx
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_from_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_HANDLER:
+      str = &ha_sql;
+      break;
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      str = &update_sql;
+      break;
+    default:
+      str = &sql;
+      break;
+  }
+  error_num = append_from(str, sql_type, link_idx);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_from(
+  spider_string *str,
+  ulong sql_type,
+  int link_idx
+) {
+  DBUG_ENTER("spider_oracle_handler::append_from");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider link_idx=%d", link_idx));
+  if (sql_type == SPIDER_SQL_TYPE_HANDLER)
+  {
+    ha_table_name_pos = str->length();
+    DBUG_PRINT("info",("spider ha_table_name_pos=%u", ha_table_name_pos));
+    ha_sql_handler_id = spider->m_handler_id[link_idx];
+    DBUG_PRINT("info",("spider ha_sql_handler_id=%u", ha_sql_handler_id));
+    if (str->reserve(SPIDER_SQL_HANDLER_CID_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(spider->m_handler_cid[link_idx], SPIDER_SQL_HANDLER_CID_LEN);
+    DBUG_PRINT("info",("spider m_handler_cid=%s",
+      spider->m_handler_cid[link_idx]));
+  } else {
+    if (str->reserve(SPIDER_SQL_FROM_LEN + oracle_share->db_nm_max_length +
+      SPIDER_SQL_DOT_LEN + oracle_share->table_nm_max_length +
+      /* SPIDER_SQL_NAME_QUOTE_LEN */ 4 + SPIDER_SQL_OPEN_PAREN_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_FROM_STR, SPIDER_SQL_FROM_LEN);
+    table_name_pos = str->length();
+    append_table_name_with_adjusting(str, link_idx, sql_type);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_flush_tables_part(
+  ulong sql_type,
+  int link_idx,
+  bool lock
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_flush_tables_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_OTHER_SQL:
+      str = &spider->result_list.sqls[link_idx];
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_flush_tables(str, link_idx, lock);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_flush_tables(
+  spider_string *str,
+  int link_idx,
+  bool lock
+) {
+  DBUG_ENTER("spider_oracle_handler::append_flush_tables");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (lock)
+  {
+    if (str->reserve(SPIDER_SQL_FLUSH_TABLES_LEN +
+      SPIDER_SQL_WITH_READ_LOCK_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_FLUSH_TABLES_STR, SPIDER_SQL_FLUSH_TABLES_LEN);
+    str->q_append(SPIDER_SQL_WITH_READ_LOCK_STR,
+      SPIDER_SQL_WITH_READ_LOCK_LEN);
+  } else {
+    if (str->reserve(SPIDER_SQL_FLUSH_TABLES_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_FLUSH_TABLES_STR, SPIDER_SQL_FLUSH_TABLES_LEN);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_optimize_table_part(
+  ulong sql_type,
+  int link_idx
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_optimize_table_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_OTHER_SQL:
+      str = &spider->result_list.sqls[link_idx];
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_optimize_table(str, link_idx);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_optimize_table(
+  spider_string *str,
+  int link_idx
+) {
+  SPIDER_SHARE *share = spider->share;
+  int conn_link_idx = spider->conn_link_idx[link_idx];
+  int local_length = spider_param_internal_optimize_local(
+    spider->wide_handler->trx->thd,
+    share->internal_optimize_local) * SPIDER_SQL_SQL_LOCAL_LEN;
+  DBUG_ENTER("spider_oracle_handler::append_optimize_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_SQL_OPTIMIZE_LEN + SPIDER_SQL_SQL_TABLE_LEN +
+    local_length +
+    oracle_share->db_names_str[conn_link_idx].length() +
+    SPIDER_SQL_DOT_LEN +
+    oracle_share->table_names_str[conn_link_idx].length() +
+    /* SPIDER_SQL_NAME_QUOTE_LEN */ 4))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_SQL_OPTIMIZE_STR, SPIDER_SQL_SQL_OPTIMIZE_LEN);
+  if (local_length)
+    str->q_append(SPIDER_SQL_SQL_LOCAL_STR, SPIDER_SQL_SQL_LOCAL_LEN);
+  str->q_append(SPIDER_SQL_SQL_TABLE_STR, SPIDER_SQL_SQL_TABLE_LEN);
+  oracle_share->append_table_name(str, conn_link_idx);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_analyze_table_part(
+  ulong sql_type,
+  int link_idx
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_analyze_table_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_OTHER_SQL:
+      str = &spider->result_list.sqls[link_idx];
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_analyze_table(str, link_idx);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_analyze_table(
+  spider_string *str,
+  int link_idx
+) {
+  SPIDER_SHARE *share = spider->share;
+  int conn_link_idx = spider->conn_link_idx[link_idx];
+  int local_length = spider_param_internal_optimize_local(
+    spider->wide_handler->trx->thd,
+    share->internal_optimize_local) * SPIDER_SQL_SQL_LOCAL_LEN;
+  DBUG_ENTER("spider_oracle_handler::append_analyze_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_SQL_ANALYZE_LEN + SPIDER_SQL_SQL_TABLE_LEN +
+    local_length +
+    oracle_share->db_names_str[conn_link_idx].length() +
+    SPIDER_SQL_DOT_LEN +
+    oracle_share->table_names_str[conn_link_idx].length() +
+    /* SPIDER_SQL_NAME_QUOTE_LEN */ 4))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_SQL_ANALYZE_STR, SPIDER_SQL_SQL_ANALYZE_LEN);
+  if (local_length)
+    str->q_append(SPIDER_SQL_SQL_LOCAL_STR, SPIDER_SQL_SQL_LOCAL_LEN);
+  str->q_append(SPIDER_SQL_SQL_TABLE_STR, SPIDER_SQL_SQL_TABLE_LEN);
+  oracle_share->append_table_name(str, conn_link_idx);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_repair_table_part(
+  ulong sql_type,
+  int link_idx,
+  HA_CHECK_OPT* check_opt
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_repair_table_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_OTHER_SQL:
+      str = &spider->result_list.sqls[link_idx];
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_repair_table(str, link_idx, check_opt);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_repair_table(
+  spider_string *str,
+  int link_idx,
+  HA_CHECK_OPT* check_opt
+) {
+  SPIDER_SHARE *share = spider->share;
+  int conn_link_idx = spider->conn_link_idx[link_idx];
+  int local_length = spider_param_internal_optimize_local(
+    spider->wide_handler->trx->thd,
+    share->internal_optimize_local) * SPIDER_SQL_SQL_LOCAL_LEN;
+  DBUG_ENTER("spider_oracle_handler::append_repair_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_SQL_REPAIR_LEN + SPIDER_SQL_SQL_TABLE_LEN +
+    local_length +
+    oracle_share->db_names_str[conn_link_idx].length() +
+    SPIDER_SQL_DOT_LEN +
+    oracle_share->table_names_str[conn_link_idx].length() +
+    /* SPIDER_SQL_NAME_QUOTE_LEN */ 4))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_SQL_REPAIR_STR, SPIDER_SQL_SQL_REPAIR_LEN);
+  if (local_length)
+    str->q_append(SPIDER_SQL_SQL_LOCAL_STR, SPIDER_SQL_SQL_LOCAL_LEN);
+  str->q_append(SPIDER_SQL_SQL_TABLE_STR, SPIDER_SQL_SQL_TABLE_LEN);
+  oracle_share->append_table_name(str, conn_link_idx);
+  if (check_opt->flags & T_QUICK)
+  {
+    if (str->reserve(SPIDER_SQL_SQL_QUICK_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SQL_QUICK_STR, SPIDER_SQL_SQL_QUICK_LEN);
+  }
+  if (check_opt->flags & T_EXTEND)
+  {
+    if (str->reserve(SPIDER_SQL_SQL_EXTENDED_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SQL_EXTENDED_STR, SPIDER_SQL_SQL_EXTENDED_LEN);
+  }
+  if (check_opt->sql_flags & TT_USEFRM)
+  {
+    if (str->reserve(SPIDER_SQL_SQL_USE_FRM_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SQL_USE_FRM_STR, SPIDER_SQL_SQL_USE_FRM_LEN);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_check_table_part(
+  ulong sql_type,
+  int link_idx,
+  HA_CHECK_OPT* check_opt
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_check_table_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_OTHER_SQL:
+      str = &spider->result_list.sqls[link_idx];
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_check_table(str, link_idx, check_opt);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_check_table(
+  spider_string *str,
+  int link_idx,
+  HA_CHECK_OPT* check_opt
+) {
+  int conn_link_idx = spider->conn_link_idx[link_idx];
+  DBUG_ENTER("spider_oracle_handler::append_check_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_SQL_CHECK_TABLE_LEN +
+    oracle_share->db_names_str[conn_link_idx].length() +
+    SPIDER_SQL_DOT_LEN +
+    oracle_share->table_names_str[conn_link_idx].length() +
+    /* SPIDER_SQL_NAME_QUOTE_LEN */ 4))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_SQL_CHECK_TABLE_STR,
+    SPIDER_SQL_SQL_CHECK_TABLE_LEN);
+  oracle_share->append_table_name(str, conn_link_idx);
+  if (check_opt->flags & T_QUICK)
+  {
+    if (str->reserve(SPIDER_SQL_SQL_QUICK_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SQL_QUICK_STR, SPIDER_SQL_SQL_QUICK_LEN);
+  }
+  if (check_opt->flags & T_FAST)
+  {
+    if (str->reserve(SPIDER_SQL_SQL_FAST_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SQL_FAST_STR, SPIDER_SQL_SQL_FAST_LEN);
+  }
+  if (check_opt->flags & T_MEDIUM)
+  {
+    if (str->reserve(SPIDER_SQL_SQL_MEDIUM_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SQL_MEDIUM_STR, SPIDER_SQL_SQL_MEDIUM_LEN);
+  }
+  if (check_opt->flags & T_EXTEND)
+  {
+    if (str->reserve(SPIDER_SQL_SQL_EXTENDED_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SQL_EXTENDED_STR, SPIDER_SQL_SQL_EXTENDED_LEN);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_enable_keys_part(
+  ulong sql_type,
+  int link_idx
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_enable_keys_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_OTHER_SQL:
+      str = &spider->result_list.sqls[link_idx];
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_enable_keys(str, link_idx);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_enable_keys(
+  spider_string *str,
+  int link_idx
+) {
+  int conn_link_idx = spider->conn_link_idx[link_idx];
+  DBUG_ENTER("spider_oracle_handler::append_enable_keys");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_SQL_ALTER_TABLE_LEN +
+    oracle_share->db_names_str[conn_link_idx].length() +
+    SPIDER_SQL_DOT_LEN +
+    oracle_share->table_names_str[conn_link_idx].length() +
+    /* SPIDER_SQL_NAME_QUOTE_LEN */ 4 + SPIDER_SQL_SQL_ENABLE_KEYS_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_SQL_ALTER_TABLE_STR,
+    SPIDER_SQL_SQL_ALTER_TABLE_LEN);
+  oracle_share->append_table_name(str, conn_link_idx);
+  str->q_append(SPIDER_SQL_SQL_ENABLE_KEYS_STR,
+    SPIDER_SQL_SQL_ENABLE_KEYS_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_disable_keys_part(
+  ulong sql_type,
+  int link_idx
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_disable_keys_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_OTHER_SQL:
+      str = &spider->result_list.sqls[link_idx];
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_disable_keys(str, link_idx);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_disable_keys(
+  spider_string *str,
+  int link_idx
+) {
+  int conn_link_idx = spider->conn_link_idx[link_idx];
+  DBUG_ENTER("spider_oracle_handler::append_disable_keys");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_SQL_ALTER_TABLE_LEN +
+    oracle_share->db_names_str[conn_link_idx].length() +
+    SPIDER_SQL_DOT_LEN +
+    oracle_share->table_names_str[conn_link_idx].length() +
+    /* SPIDER_SQL_NAME_QUOTE_LEN */ 4 + SPIDER_SQL_SQL_DISABLE_KEYS_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_SQL_ALTER_TABLE_STR,
+    SPIDER_SQL_SQL_ALTER_TABLE_LEN);
+  oracle_share->append_table_name(str, conn_link_idx);
+  str->q_append(SPIDER_SQL_SQL_DISABLE_KEYS_STR,
+    SPIDER_SQL_SQL_DISABLE_KEYS_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_delete_all_rows_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_delete_all_rows_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+      str = &update_sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_delete_all_rows(str, sql_type);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_delete_all_rows(
+  spider_string *str,
+  ulong sql_type
+) {
+  int error_num;
+  DBUG_ENTER("spider_oracle_handler::append_delete_all_rows");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (spider->sql_command == SQLCOM_TRUNCATE)
+  {
+    if ((error_num = append_truncate(str, sql_type, first_link_idx)))
+      DBUG_RETURN(error_num);
+  } else {
+    if (
+      (error_num = append_delete(str)) ||
+      (error_num = append_from(str, sql_type, first_link_idx))
+    )
+      DBUG_RETURN(error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_truncate(
+  spider_string *str,
+  ulong sql_type,
+  int link_idx
+) {
+  DBUG_ENTER("spider_oracle_handler::append_truncate");
+  if (str->reserve(SPIDER_SQL_TRUNCATE_TABLE_LEN +
+    oracle_share->db_nm_max_length +
+    SPIDER_SQL_DOT_LEN + oracle_share->table_nm_max_length +
+    /* SPIDER_SQL_NAME_QUOTE_LEN */ 4 + SPIDER_SQL_OPEN_PAREN_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  str->q_append(SPIDER_SQL_TRUNCATE_TABLE_STR, SPIDER_SQL_TRUNCATE_TABLE_LEN);
+  table_name_pos = str->length();
+  append_table_name_with_adjusting(str, link_idx, sql_type);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_explain_select_part(
+  const key_range *start_key,
+  const key_range *end_key,
+  ulong sql_type,
+  int link_idx
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_explain_select_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_OTHER_SQL:
+      str = &spider->result_list.sqls[link_idx];
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num =
+    append_explain_select(str, start_key, end_key, sql_type, link_idx);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_explain_select(
+  spider_string *str,
+  const key_range *start_key,
+  const key_range *end_key,
+  ulong sql_type,
+  int link_idx
+) {
+  int error_num;
+  DBUG_ENTER("spider_oracle_handler::append_explain_select");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (str->reserve(SPIDER_SQL_EXPLAIN_SELECT_LEN))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str->q_append(SPIDER_SQL_EXPLAIN_SELECT_STR, SPIDER_SQL_EXPLAIN_SELECT_LEN);
+  if (
+    (error_num = append_from(str, sql_type, link_idx)) ||
+    (error_num = append_key_where(str, NULL, NULL, start_key, end_key,
+      sql_type, FALSE))
+  ) {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  DBUG_RETURN(0);
+}
+
+/********************************************************************
+ * Determine whether the current query's projection list
+ * consists solely of the specified column.
+ *
+ * Params   IN      - field_index:
+ *                    Field index of the column of interest within
+ *                    its table.
+ *
+ * Returns  TRUE    - if the query's projection list consists
+ *                    solely of the specified column.
+ *          FALSE   - otherwise.
+ ********************************************************************/
+bool spider_oracle_handler::is_sole_projection_field( uint16 field_index )
+{
+  // Determine whether the projection list consists solely of the field of interest
+  bool            is_field_in_projection_list = FALSE;
+  TABLE*          table                       = spider->get_table();
+  uint16          projection_field_count      = 0;
+  uint16          projection_field_index;
+  Field**         field;
+  DBUG_ENTER( "spider_oracle_handler::is_sole_projection_field" );
+
+  for ( field = table->field; *field; field++ )
+  {
+    projection_field_index = ( *field )->field_index;
+
+    if ( !( minimum_select_bit_is_set( projection_field_index ) ) )
+    {
+      // Current field is not in the projection list
+      continue;
+    }
+
+    projection_field_count++;
+
+    if ( !is_field_in_projection_list )
+    {
+      if (field_index == projection_field_index)
+      {
+        // Field of interest is in the projection list
+        is_field_in_projection_list     = TRUE;
+      }
+    }
+
+    if ( is_field_in_projection_list && ( projection_field_count != 1 ) )
+    {
+      // Field of interest is not the sole column in the projection list
+      DBUG_RETURN( FALSE );
+    }
+  }
+
+  if ( is_field_in_projection_list && ( projection_field_count == 1 ) )
+  {
+    // Field of interest is the only column in the projection list
+    DBUG_RETURN( TRUE );
+  }
+
+  DBUG_RETURN( FALSE );
+}
+
+bool spider_oracle_handler::is_bulk_insert_exec_period(
+  bool bulk_end
+) {
+  DBUG_ENTER("spider_oracle_handler::is_bulk_insert_exec_period");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider insert_sql.length=%u", insert_sql.length()));
+  DBUG_PRINT("info",("spider insert_pos=%d", insert_pos));
+  DBUG_PRINT("info",("spider insert_sql=%s", insert_sql.c_ptr_safe()));
+  if (
+/*
+    (bulk_end || (int) insert_sql.length() >= spider->bulk_size) &&
+*/
+    (int) insert_sql.length() > insert_pos
+  ) {
+    DBUG_RETURN(TRUE);
+  }
+  DBUG_RETURN(FALSE);
+}
+
+bool spider_oracle_handler::sql_is_filled_up(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_oracle_handler::sql_is_filled_up");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(filled_up);
+}
+
+bool spider_oracle_handler::sql_is_empty(
+  ulong sql_type
+) {
+  bool is_empty;
+  DBUG_ENTER("spider_oracle_handler::sql_is_empty");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      is_empty = (sql.length() == 0);
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+      is_empty = (insert_sql.length() == 0);
+      break;
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      is_empty = (update_sql.length() == 0);
+      break;
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      is_empty = (tmp_sql.length() == 0);
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      is_empty = (ha_sql.length() == 0);
+      break;
+    default:
+      is_empty = TRUE;
+      break;
+  }
+  DBUG_RETURN(is_empty);
+}
+
+bool spider_oracle_handler::support_multi_split_read()
+{
+  DBUG_ENTER("spider_oracle_handler::support_multi_split_read");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(FALSE);
+}
+
+bool spider_oracle_handler::support_bulk_update()
+{
+  DBUG_ENTER("spider_oracle_handler::support_bulk_update");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(FALSE);
+}
+
+int spider_oracle_handler::bulk_tmp_table_insert()
+{
+  int error_num;
+  DBUG_ENTER("spider_oracle_handler::bulk_tmp_table_insert");
+  DBUG_PRINT("info",("spider this=%p", this));
+  error_num = store_sql_to_bulk_tmp_table(&update_sql, upd_tmp_tbl);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::bulk_tmp_table_insert(
+  int link_idx
+) {
+  int error_num;
+  DBUG_ENTER("spider_oracle_handler::bulk_tmp_table_insert");
+  DBUG_PRINT("info",("spider this=%p", this));
+  error_num = store_sql_to_bulk_tmp_table(
+    &spider->result_list.update_sqls[link_idx],
+    spider->result_list.upd_tmp_tbls[link_idx]);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::bulk_tmp_table_end_bulk_insert()
+{
+  int error_num;
+  DBUG_ENTER("spider_oracle_handler::bulk_tmp_table_end_bulk_insert");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if ((error_num = upd_tmp_tbl->file->ha_end_bulk_insert()))
+  {
+    DBUG_RETURN(error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::bulk_tmp_table_rnd_init()
+{
+  int error_num;
+  DBUG_ENTER("spider_oracle_handler::bulk_tmp_table_rnd_init");
+  DBUG_PRINT("info",("spider this=%p", this));
+  upd_tmp_tbl->file->extra(HA_EXTRA_CACHE);
+  if ((error_num = upd_tmp_tbl->file->ha_rnd_init(TRUE)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  reading_from_bulk_tmp_table = TRUE;
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::bulk_tmp_table_rnd_next()
+{
+  int error_num;
+  DBUG_ENTER("spider_oracle_handler::bulk_tmp_table_rnd_next");
+  DBUG_PRINT("info",("spider this=%p", this));
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 50200
+  error_num = upd_tmp_tbl->file->ha_rnd_next(upd_tmp_tbl->record[0]);
+#else
+  error_num = upd_tmp_tbl->file->rnd_next(upd_tmp_tbl->record[0]);
+#endif
+  if (!error_num)
+  {
+    error_num = restore_sql_from_bulk_tmp_table(&insert_sql, upd_tmp_tbl);
+  }
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::bulk_tmp_table_rnd_end()
+{
+  int error_num;
+  DBUG_ENTER("spider_oracle_handler::bulk_tmp_table_rnd_end");
+  DBUG_PRINT("info",("spider this=%p", this));
+  reading_from_bulk_tmp_table = FALSE;
+  if ((error_num = upd_tmp_tbl->file->ha_rnd_end()))
+  {
+    DBUG_RETURN(error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+bool spider_oracle_handler::need_copy_for_update(
+  int link_idx
+) {
+  int all_link_idx = spider->conn_link_idx[link_idx];
+  DBUG_ENTER("spider_oracle_handler::need_copy_for_update");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(!oracle_share->same_db_table_name ||
+    spider->share->link_statuses[all_link_idx] == SPIDER_LINK_STATUS_RECOVERY);
+}
+
+bool spider_oracle_handler::bulk_tmp_table_created()
+{
+  DBUG_ENTER("spider_oracle_handler::bulk_tmp_table_created");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(upd_tmp_tbl);
+}
+
+int spider_oracle_handler::mk_bulk_tmp_table_and_bulk_start()
+{
+  THD *thd = spider->wide_handler->trx->thd;
+  TABLE *table = spider->get_table();
+  DBUG_ENTER("spider_oracle_handler::mk_bulk_tmp_table_and_bulk_start");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!upd_tmp_tbl)
+  {
+#ifdef SPIDER_use_LEX_CSTRING_for_Field_blob_constructor
+    LEX_CSTRING field_name = {STRING_WITH_LEN("a")};
+    if (!(upd_tmp_tbl = spider_mk_sys_tmp_table(
+      thd, table, &upd_tmp_tbl_prm, &field_name, update_sql.charset())))
+#else
+    if (!(upd_tmp_tbl = spider_mk_sys_tmp_table(
+      thd, table, &upd_tmp_tbl_prm, "a", update_sql.charset())))
+#endif
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    upd_tmp_tbl->file->extra(HA_EXTRA_WRITE_CACHE);
+    upd_tmp_tbl->file->ha_start_bulk_insert((ha_rows) 0);
+  }
+  DBUG_RETURN(0);
+}
+
+void spider_oracle_handler::rm_bulk_tmp_table()
+{
+  DBUG_ENTER("spider_oracle_handler::rm_bulk_tmp_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (upd_tmp_tbl)
+  {
+    spider_rm_sys_tmp_table(spider->wide_handler->trx->thd, upd_tmp_tbl,
+      &upd_tmp_tbl_prm);
+    upd_tmp_tbl = NULL;
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_oracle_handler::store_sql_to_bulk_tmp_table(
+  spider_string *str,
+  TABLE *tmp_table
+) {
+  int error_num;
+  DBUG_ENTER("spider_oracle_handler::store_sql_to_bulk_tmp_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  tmp_table->field[0]->set_notnull();
+  tmp_table->field[0]->store(str->ptr(), str->length(), str->charset());
+  if ((error_num = tmp_table->file->ha_write_row(tmp_table->record[0])))
+    DBUG_RETURN(error_num);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::restore_sql_from_bulk_tmp_table(
+  spider_string *str,
+  TABLE *tmp_table
+) {
+  DBUG_ENTER("spider_oracle_handler::restore_sql_from_bulk_tmp_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  tmp_table->field[0]->val_str(str->get_str());
+  str->mem_calc();
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::insert_lock_tables_list(
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  spider_db_oracle *db_conn = (spider_db_oracle *) conn->db_conn;
+  SPIDER_LINK_FOR_HASH *tmp_link_for_hash2 = &link_for_hash[link_idx];
+  DBUG_ENTER("spider_oracle_handler::insert_lock_tables_list");
+  DBUG_PRINT("info",("spider this=%p", this));
+  uint old_elements =
+    db_conn->lock_table_hash.array.max_element;
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+  if (my_hash_insert_with_hash_value(
+    &db_conn->lock_table_hash,
+    tmp_link_for_hash2->db_table_str_hash_value,
+    (uchar*) tmp_link_for_hash2))
+#else
+  if (my_hash_insert(&db_conn->lock_table_hash,
+    (uchar*) tmp_link_for_hash2))
+#endif
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  if (db_conn->lock_table_hash.array.max_element > old_elements)
+  {
+    spider_alloc_calc_mem(spider_current_trx,
+      db_conn->lock_table_hash,
+      (db_conn->lock_table_hash.array.max_element - old_elements) *
+      db_conn->lock_table_hash.array.size_of_element);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_lock_tables_list(
+  SPIDER_CONN *conn,
+  int link_idx,
+  int *appended
+) {
+  int error_num;
+  SPIDER_LINK_FOR_HASH *tmp_link_for_hash, *tmp_link_for_hash2;
+  int conn_link_idx = spider->conn_link_idx[link_idx];
+  spider_db_oracle *db_conn = (spider_db_oracle *) conn->db_conn;
+  DBUG_ENTER("spider_oracle_handler::append_lock_tables_list");
+  DBUG_PRINT("info",("spider this=%p", this));
+  tmp_link_for_hash2 = &link_for_hash[link_idx];
+  tmp_link_for_hash2->db_table_str =
+    &oracle_share->db_table_str[conn_link_idx];
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  tmp_link_for_hash2->db_table_str_hash_value =
+    oracle_share->db_table_str_hash_value[conn_link_idx];
+  if (!(tmp_link_for_hash = (SPIDER_LINK_FOR_HASH *)
+    my_hash_search_using_hash_value(
+      &db_conn->lock_table_hash,
+      tmp_link_for_hash2->db_table_str_hash_value,
+      (uchar*) tmp_link_for_hash2->db_table_str->ptr(),
+      tmp_link_for_hash2->db_table_str->length())))
+#else
+  if (!(tmp_link_for_hash = (SPIDER_LINK_FOR_HASH *) my_hash_search(
+    &db_conn->lock_table_hash,
+    (uchar*) tmp_link_for_hash2->db_table_str->ptr(),
+    tmp_link_for_hash2->db_table_str->length())))
+#endif
+  {
+    if ((error_num = insert_lock_tables_list(conn, link_idx)))
+      DBUG_RETURN(error_num);
+    *appended = 1;
+  } else {
+    if (tmp_link_for_hash->spider->wide_handler->lock_type <
+      spider->wide_handler->lock_type)
+    {
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+      my_hash_delete_with_hash_value(
+        &db_conn->lock_table_hash,
+        tmp_link_for_hash->db_table_str_hash_value,
+        (uchar*) tmp_link_for_hash);
+#else
+      my_hash_delete(&db_conn->lock_table_hash,
+        (uchar*) tmp_link_for_hash);
+#endif
+      uint old_elements =
+        db_conn->lock_table_hash.array.max_element;
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+      if (my_hash_insert_with_hash_value(
+        &db_conn->lock_table_hash,
+        tmp_link_for_hash2->db_table_str_hash_value,
+        (uchar*) tmp_link_for_hash2))
+#else
+      if (my_hash_insert(&db_conn->lock_table_hash,
+        (uchar*) tmp_link_for_hash2))
+#endif
+      {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+      if (db_conn->lock_table_hash.array.max_element > old_elements)
+      {
+        spider_alloc_calc_mem(spider_current_trx,
+          db_conn->lock_table_hash,
+          (db_conn->lock_table_hash.array.max_element - old_elements) *
+          db_conn->lock_table_hash.array.size_of_element);
+      }
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::realloc_sql(
+  ulong *realloced
+) {
+  THD *thd = spider->wide_handler->trx->thd;
+  st_spider_share *share = spider->share;
+  int init_sql_alloc_size =
+    spider_param_init_sql_alloc_size(thd, share->init_sql_alloc_size);
+  DBUG_ENTER("spider_oracle_handler::realloc_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if ((int) sql.alloced_length() > init_sql_alloc_size * 2)
+  {
+    sql.free();
+    if (sql.real_alloc(init_sql_alloc_size))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    *realloced |= SPIDER_SQL_TYPE_SELECT_SQL;
+  }
+  if ((int) ha_sql.alloced_length() > init_sql_alloc_size * 2)
+  {
+    ha_sql.free();
+    if (ha_sql.real_alloc(init_sql_alloc_size))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    *realloced |= SPIDER_SQL_TYPE_SELECT_SQL;
+  }
+  if ((int) dup_update_sql.alloced_length() > init_sql_alloc_size * 2)
+  {
+    dup_update_sql.free();
+    if (dup_update_sql.real_alloc(init_sql_alloc_size))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  if ((int) insert_sql.alloced_length() > init_sql_alloc_size * 2)
+  {
+    insert_sql.free();
+    if (insert_sql.real_alloc(init_sql_alloc_size))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    *realloced |= SPIDER_SQL_TYPE_INSERT_SQL;
+  }
+  if ((int) update_sql.alloced_length() > init_sql_alloc_size * 2)
+  {
+    update_sql.free();
+    if (update_sql.real_alloc(init_sql_alloc_size))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    *realloced |= (SPIDER_SQL_TYPE_UPDATE_SQL | SPIDER_SQL_TYPE_DELETE_SQL);
+  }
+  update_sql.length(0);
+  if ((int) tmp_sql.alloced_length() > init_sql_alloc_size * 2)
+  {
+    tmp_sql.free();
+    if (tmp_sql.real_alloc(init_sql_alloc_size))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    *realloced |= SPIDER_SQL_TYPE_TMP_SQL;
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::reset_sql(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_oracle_handler::reset_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql_type & SPIDER_SQL_TYPE_SELECT_SQL)
+  {
+    table_lock_mode = 0;
+    select_rownum_appended = FALSE;
+    sql.length(0);
+  }
+  if (sql_type & SPIDER_SQL_TYPE_INSERT_SQL)
+  {
+    insert_sql.length(0);
+  }
+  if (sql_type & (SPIDER_SQL_TYPE_UPDATE_SQL | SPIDER_SQL_TYPE_DELETE_SQL |
+    SPIDER_SQL_TYPE_BULK_UPDATE_SQL))
+  {
+    update_rownum_appended = FALSE;
+    update_set_pos = 0;
+    update_sql.length(0);
+  }
+  if (sql_type & SPIDER_SQL_TYPE_TMP_SQL)
+  {
+    tmp_sql.length(0);
+  }
+  if (sql_type & SPIDER_SQL_TYPE_HANDLER)
+  {
+    ha_sql.length(0);
+  }
+  DBUG_RETURN(0);
+}
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+int spider_oracle_handler::reset_keys(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_oracle_handler::reset_keys");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::reset_upds(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_oracle_handler::reset_upds");
+  DBUG_PRINT("info",("spider this=%p", this));
+  hs_upds.clear();
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::reset_strs(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_oracle_handler::reset_strs");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::reset_strs_pos(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_oracle_handler::reset_strs_pos");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(0);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::push_back_upds(
+  SPIDER_HS_STRING_REF &info
+) {
+  int error_num;
+  DBUG_ENTER("spider_oracle_handler::push_back_upds");
+  DBUG_PRINT("info",("spider this=%p", this));
+  error_num = hs_upds.push_back(info);
+  DBUG_RETURN(error_num);
+}
+#endif
+
+bool spider_oracle_handler::need_lock_before_set_sql_for_exec(
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_oracle_handler::need_lock_before_set_sql_for_exec");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(FALSE);
+}
+
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+int spider_oracle_handler::set_sql_for_exec(
+  ulong sql_type,
+  int link_idx,
+  SPIDER_LINK_IDX_CHAIN *link_idx_chain
+) {
+  int error_num;
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  int all_link_idx = spider->conn_link_idx[link_idx];
+  DBUG_ENTER("spider_oracle_handler::set_sql_for_exec");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql_type & SPIDER_SQL_TYPE_SELECT_SQL)
+  {
+    if (table_lock_mode)
+    {
+      spider_string *str = &result_list->insert_sqls[link_idx];
+      str->length(0);
+      if (str->reserve(SPIDER_SQL_LOCK_TABLE_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_LOCK_TABLE_STR, SPIDER_SQL_LOCK_TABLE_LEN);
+      if ((error_num = oracle_share->append_table_name(str, all_link_idx)))
+        DBUG_RETURN(error_num);
+      if (table_lock_mode == SPIDER_LOCK_MODE_EXCLUSIVE)
+      {
+        if (str->reserve(SPIDER_SQL_LOCK_TABLE_EXCLUSIVE_MODE_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_LOCK_TABLE_EXCLUSIVE_MODE_STR,
+          SPIDER_SQL_LOCK_TABLE_EXCLUSIVE_MODE_LEN);
+      } else if (table_lock_mode == SPIDER_LOCK_MODE_SHARED)
+      {
+        if (str->reserve(SPIDER_SQL_LOCK_TABLE_SHARE_MODE_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_LOCK_TABLE_SHARE_MODE_STR,
+          SPIDER_SQL_LOCK_TABLE_SHARE_MODE_LEN);
+      }
+      exec_lock_sql = str;
+    }
+
+    if ((error_num = spider_db_oracle_utility.reappend_tables(
+      spider->fields, link_idx_chain, &sql)))
+      DBUG_RETURN(error_num);
+    exec_sql = &sql;
+  }
+  DBUG_RETURN(0);
+}
+#endif
+
+int spider_oracle_handler::set_sql_for_exec(
+  ulong sql_type,
+  int link_idx
+) {
+  int error_num;
+  uint tmp_pos;
+  SPIDER_SHARE *share = spider->share;
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  int all_link_idx = spider->conn_link_idx[link_idx];
+  DBUG_ENTER("spider_oracle_handler::set_sql_for_exec");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql_type & (SPIDER_SQL_TYPE_SELECT_SQL | SPIDER_SQL_TYPE_TMP_SQL))
+  {
+    if (table_lock_mode)
+    {
+      spider_string *str = &result_list->insert_sqls[link_idx];
+      str->length(0);
+      if (str->reserve(SPIDER_SQL_LOCK_TABLE_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_LOCK_TABLE_STR, SPIDER_SQL_LOCK_TABLE_LEN);
+      if ((error_num = oracle_share->append_table_name(str, all_link_idx)))
+        DBUG_RETURN(error_num);
+      if (table_lock_mode == SPIDER_LOCK_MODE_EXCLUSIVE)
+      {
+        if (str->reserve(SPIDER_SQL_LOCK_TABLE_EXCLUSIVE_MODE_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_LOCK_TABLE_EXCLUSIVE_MODE_STR,
+          SPIDER_SQL_LOCK_TABLE_EXCLUSIVE_MODE_LEN);
+      } else if (table_lock_mode == SPIDER_LOCK_MODE_SHARED)
+      {
+        if (str->reserve(SPIDER_SQL_LOCK_TABLE_SHARE_MODE_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_LOCK_TABLE_SHARE_MODE_STR,
+          SPIDER_SQL_LOCK_TABLE_SHARE_MODE_LEN);
+      }
+      exec_lock_sql = str;
+    }
+
+    if (oracle_share->same_db_table_name || link_idx == first_link_idx)
+    {
+      if (sql_type & SPIDER_SQL_TYPE_SELECT_SQL)
+        exec_sql = &sql;
+      if (sql_type & SPIDER_SQL_TYPE_TMP_SQL)
+        exec_tmp_sql = &tmp_sql;
+    } else {
+      char tmp_table_name[MAX_FIELD_WIDTH * 2],
+        tgt_table_name[MAX_FIELD_WIDTH * 2];
+      int tmp_table_name_length;
+      spider_string tgt_table_name_str(tgt_table_name,
+        MAX_FIELD_WIDTH * 2,
+        oracle_share->db_names_str[link_idx].charset());
+      const char *table_names[2], *table_aliases[2];
+      uint table_name_lengths[2], table_alias_lengths[2];
+      tgt_table_name_str.init_calc_mem(212);
+      tgt_table_name_str.length(0);
+      if (result_list->tmp_table_join && spider->bka_mode != 2)
+      {
+        create_tmp_bka_table_name(tmp_table_name, &tmp_table_name_length,
+          link_idx);
+        append_table_name_with_adjusting(&tgt_table_name_str, link_idx,
+          SPIDER_SQL_TYPE_TMP_SQL);
+        table_names[0] = tmp_table_name;
+        table_names[1] = tgt_table_name_str.ptr();
+        table_name_lengths[0] = tmp_table_name_length;
+        table_name_lengths[1] = tgt_table_name_str.length();
+        table_aliases[0] = SPIDER_SQL_A_STR;
+        table_aliases[1] = SPIDER_SQL_B_STR;
+        table_alias_lengths[0] = SPIDER_SQL_A_LEN;
+        table_alias_lengths[1] = SPIDER_SQL_B_LEN;
+      }
+      if (sql_type & SPIDER_SQL_TYPE_SELECT_SQL)
+      {
+        exec_sql = &result_list->sqls[link_idx];
+        if (exec_sql->copy(sql))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        else if (result_list->use_union)
+        {
+          if ((error_num = reset_union_table_name(exec_sql, link_idx,
+            SPIDER_SQL_TYPE_SELECT_SQL)))
+            DBUG_RETURN(error_num);
+        } else {
+          tmp_pos = exec_sql->length();
+          exec_sql->length(table_name_pos);
+          if (result_list->tmp_table_join && spider->bka_mode != 2)
+          {
+            if ((error_num = spider_db_oracle_utility.append_from_with_alias(
+              exec_sql, table_names, table_name_lengths,
+              table_aliases, table_alias_lengths, 2,
+              &table_name_pos, TRUE))
+            )
+              DBUG_RETURN(error_num);
+            exec_sql->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+          } else {
+            append_table_name_with_adjusting(exec_sql, link_idx,
+              SPIDER_SQL_TYPE_SELECT_SQL);
+          }
+          exec_sql->length(tmp_pos);
+        }
+      }
+      if (sql_type & SPIDER_SQL_TYPE_TMP_SQL)
+      {
+        exec_tmp_sql = &result_list->tmp_sqls[link_idx];
+        if (result_list->tmp_table_join && spider->bka_mode != 2)
+        {
+          if (exec_tmp_sql->copy(tmp_sql))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          else {
+            tmp_pos = exec_tmp_sql->length();
+            exec_tmp_sql->length(tmp_sql_pos1);
+            exec_tmp_sql->q_append(tmp_table_name, tmp_table_name_length);
+            exec_tmp_sql->length(tmp_sql_pos2);
+            exec_tmp_sql->q_append(tmp_table_name, tmp_table_name_length);
+            exec_tmp_sql->length(tmp_sql_pos3);
+            exec_tmp_sql->q_append(tmp_table_name, tmp_table_name_length);
+            exec_tmp_sql->length(tmp_pos);
+          }
+        }
+      }
+    }
+  }
+  if (sql_type & SPIDER_SQL_TYPE_INSERT_SQL)
+  {
+    if (oracle_share->same_db_table_name || link_idx == first_link_idx)
+      exec_insert_sql = &insert_sql;
+    else {
+      exec_insert_sql = &result_list->insert_sqls[link_idx];
+      if (exec_insert_sql->copy(insert_sql))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      DBUG_PRINT("info",("spider exec_insert_sql=%s",
+        exec_insert_sql->c_ptr_safe()));
+      tmp_pos = exec_insert_sql->length();
+      exec_insert_sql->length(insert_table_name_pos);
+      append_table_name_with_adjusting(exec_insert_sql, link_idx,
+        sql_type);
+      exec_insert_sql->length(tmp_pos);
+      DBUG_PRINT("info",("spider exec_insert_sql->length=%u",
+        exec_insert_sql->length()));
+      DBUG_PRINT("info",("spider exec_insert_sql=%s",
+        exec_insert_sql->c_ptr_safe()));
+    }
+    if (nextval_pos)
+    {
+      memcpy((uchar *) exec_insert_sql->ptr() + nextval_pos,
+        oracle_share->nextval_str[all_link_idx].ptr(),
+        oracle_share->nextval_max_length);
+    }
+  }
+  if (sql_type & SPIDER_SQL_TYPE_BULK_UPDATE_SQL)
+  {
+    if (reading_from_bulk_tmp_table)
+    {
+      if (
+        oracle_share->same_db_table_name &&
+        share->link_statuses[all_link_idx] != SPIDER_LINK_STATUS_RECOVERY
+      ) {
+        exec_update_sql = &insert_sql;
+      } else if (!spider->result_list.upd_tmp_tbls[link_idx])
+      {
+        DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+      } else {
+        exec_update_sql = &spider->result_list.insert_sqls[link_idx];
+        if ((error_num = restore_sql_from_bulk_tmp_table(exec_update_sql,
+          spider->result_list.upd_tmp_tbls[link_idx])))
+        {
+          DBUG_RETURN(error_num);
+        }
+      }
+    } else {
+      if (
+        oracle_share->same_db_table_name &&
+        share->link_statuses[all_link_idx] != SPIDER_LINK_STATUS_RECOVERY
+      ) {
+        exec_update_sql = &update_sql;
+      } else {
+        exec_update_sql = &spider->result_list.update_sqls[link_idx];
+      }
+    }
+    DBUG_PRINT("info",("spider exec_update_sql=%s",
+      exec_update_sql->c_ptr_safe()));
+  } else if (sql_type &
+    (SPIDER_SQL_TYPE_UPDATE_SQL | SPIDER_SQL_TYPE_DELETE_SQL))
+  {
+    if (oracle_share->same_db_table_name || link_idx == first_link_idx)
+      exec_update_sql = &update_sql;
+    else {
+      exec_update_sql = &spider->result_list.update_sqls[link_idx];
+      if (exec_update_sql->copy(update_sql))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      tmp_pos = exec_update_sql->length();
+      exec_update_sql->length(table_name_pos);
+      append_table_name_with_adjusting(exec_update_sql, link_idx,
+        sql_type);
+      exec_update_sql->length(tmp_pos);
+    }
+    DBUG_PRINT("info",("spider exec_update_sql=%s",
+      exec_update_sql->c_ptr_safe()));
+  }
+  if (sql_type & SPIDER_SQL_TYPE_HANDLER)
+  {
+    if (spider->m_handler_id[link_idx] == ha_sql_handler_id)
+      exec_ha_sql = &ha_sql;
+    else {
+      exec_ha_sql = &result_list->sqls[link_idx];
+      if (exec_ha_sql->copy(ha_sql))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      else {
+        tmp_pos = exec_ha_sql->length();
+        exec_ha_sql->length(ha_table_name_pos);
+        append_table_name_with_adjusting(exec_ha_sql, link_idx,
+          SPIDER_SQL_TYPE_HANDLER);
+        exec_ha_sql->length(tmp_pos);
+      }
+    }
+    DBUG_PRINT("info",("spider exec_ha_sql=%s",
+      exec_ha_sql->c_ptr_safe()));
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::set_sql_for_exec(
+  spider_db_copy_table *tgt_ct,
+  ulong sql_type
+) {
+  spider_oracle_copy_table *oracle_ct = (spider_oracle_copy_table *) tgt_ct;
+  DBUG_ENTER("spider_oracle_handler::set_sql_for_exec");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+      exec_insert_sql = &oracle_ct->sql;
+      break;
+    default:
+      DBUG_ASSERT(0);
+      break;
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::execute_sql(
+  ulong sql_type,
+  SPIDER_CONN *conn,
+  int quick_mode,
+  int *need_mon
+) {
+  spider_string *tgt_sql;
+  uint tgt_length;
+  DBUG_ENTER("spider_oracle_handler::execute_sql");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      DBUG_PRINT("info",("spider SPIDER_SQL_TYPE_SELECT_SQL"));
+      tgt_sql = exec_sql;
+      tgt_length = tgt_sql->length();
+      if (table_lock_mode)
+      {
+        DBUG_PRINT("info",("spider table_lock_mode=%d", table_lock_mode));
+        spider_db_oracle *db_conn = (spider_db_oracle *) conn->db_conn;
+        db_conn->table_lock_mode = table_lock_mode;
+        db_conn->exec_lock_sql = exec_lock_sql;
+        table_lock_mode = 0;
+      }
+      break;
+    case SPIDER_SQL_TYPE_INSERT_SQL:
+      DBUG_PRINT("info",("spider SPIDER_SQL_TYPE_SELECT_SQL"));
+      tgt_sql = exec_insert_sql;
+      tgt_length = tgt_sql->length();
+      break;
+    case SPIDER_SQL_TYPE_UPDATE_SQL:
+    case SPIDER_SQL_TYPE_DELETE_SQL:
+    case SPIDER_SQL_TYPE_BULK_UPDATE_SQL:
+      DBUG_PRINT("info",("spider %s",
+        sql_type == SPIDER_SQL_TYPE_UPDATE_SQL ? "SPIDER_SQL_TYPE_UPDATE_SQL" :
+        sql_type == SPIDER_SQL_TYPE_DELETE_SQL ? "SPIDER_SQL_TYPE_DELETE_SQL" :
+        "SPIDER_SQL_TYPE_BULK_UPDATE_SQL"
+      ));
+      tgt_sql = exec_update_sql;
+      tgt_length = tgt_sql->length();
+      break;
+    case SPIDER_SQL_TYPE_TMP_SQL:
+      DBUG_PRINT("info",("spider SPIDER_SQL_TYPE_TMP_SQL"));
+      tgt_sql = exec_tmp_sql;
+      tgt_length = tgt_sql->length();
+      break;
+    case SPIDER_SQL_TYPE_DROP_TMP_TABLE_SQL:
+      DBUG_PRINT("info",("spider SPIDER_SQL_TYPE_DROP_TMP_TABLE_SQL"));
+      tgt_sql = exec_tmp_sql;
+      tgt_length = tmp_sql_pos5;
+      break;
+    case SPIDER_SQL_TYPE_HANDLER:
+      DBUG_PRINT("info",("spider SPIDER_SQL_TYPE_HANDLER"));
+      tgt_sql = exec_ha_sql;
+      tgt_length = tgt_sql->length();
+      break;
+    default:
+      /* nothing to do */
+      DBUG_PRINT("info",("spider default"));
+      DBUG_RETURN(0);
+  }
+  DBUG_RETURN(spider_db_query(
+    conn,
+    tgt_sql->ptr(),
+    tgt_length,
+    quick_mode,
+    need_mon
+  ));
+}
+
+int spider_oracle_handler::reset()
+{
+  DBUG_ENTER("spider_oracle_handler::reset");
+  DBUG_PRINT("info",("spider this=%p", this));
+  update_sql.length(0);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::sts_mode_exchange(
+  int sts_mode
+) {
+  DBUG_ENTER("spider_oracle_handler::sts_mode_exchange");
+  DBUG_PRINT("info",("spider sts_mode=%d", sts_mode));
+  DBUG_RETURN(1);
+}
+
+int spider_oracle_handler::show_table_status(
+  int link_idx,
+  int sts_mode,
+  uint flag
+) {
+  int error_num;
+  SPIDER_CONN *conn = spider->conns[link_idx];
+  SPIDER_DB_RESULT *res;
+  SPIDER_SHARE *share = spider->share;
+  uint pos = (2 * spider->conn_link_idx[link_idx]);
+  ulonglong auto_increment_value = 0;
+  DBUG_ENTER("spider_oracle_handler::show_table_status");
+  DBUG_PRINT("info",("spider sts_mode=%d", sts_mode));
+  if (
+    (flag & HA_STATUS_AUTO) &&
+    (error_num = show_autoinc(link_idx))
+  ) {
+    DBUG_RETURN(error_num);
+  }
+
+  if (sts_mode == 1)
+  {
+    if (!share->stat.records)
+      share->stat.records = 10000;
+    share->stat.mean_rec_length = 65535;
+    share->stat.data_file_length = 65535;
+    share->stat.max_data_file_length = 65535;
+    share->stat.index_file_length = 65535;
+    share->stat.create_time = (time_t) 0;
+    share->stat.update_time = (time_t) 0;
+    share->stat.check_time = (time_t) 0;
+  } else {
+    pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+    pthread_mutex_lock(&conn->mta_conn_mutex);
+    SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    conn->need_mon = &spider->need_mons[link_idx];
+    DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = TRUE;
+    conn->mta_conn_mutex_unlock_later = TRUE;
+    spider_conn_set_timeout_from_share(conn, link_idx,
+      spider->wide_handler->trx->thd,
+      share);
+    if (
+      (error_num = spider_db_set_names(spider, conn, link_idx)) ||
+      (
+        spider_db_query(
+          conn,
+          oracle_share->show_table_status[1 + pos].ptr(),
+          oracle_share->show_table_status[1 + pos].length(),
+          -1,
+          &spider->need_mons[link_idx]) &&
+        (error_num = spider_db_errorno(conn))
+      )
+    ) {
+      if (
+        error_num == ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM &&
+        !conn->disable_reconnect
+      ) {
+        /* retry */
+        if ((error_num = spider_db_ping(spider, conn, link_idx)))
+        {
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+          DBUG_RETURN(error_num);
+        }
+        if ((error_num = spider_db_set_names(spider, conn, link_idx)))
+        {
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+          DBUG_RETURN(error_num);
+        }
+        spider_conn_set_timeout_from_share(conn, link_idx,
+          spider->wide_handler->trx->thd,
+          share);
+        if (spider_db_query(
+          conn,
+          oracle_share->show_table_status[1 + pos].ptr(),
+          oracle_share->show_table_status[1 + pos].length(),
+          -1,
+          &spider->need_mons[link_idx])
+        ) {
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          DBUG_RETURN(spider_db_errorno(conn));
+        }
+      } else {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        DBUG_RETURN(error_num);
+      }
+    }
+    st_spider_db_request_key request_key;
+    request_key.spider_thread_id = spider->wide_handler->trx->spider_thread_id;
+    request_key.query_id = spider->wide_handler->trx->thd->query_id;
+    request_key.handler = spider;
+    request_key.request_id = 1;
+    request_key.next = NULL;
+    if (!(res = conn->db_conn->store_result(NULL, &request_key, &error_num)))
+    {
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      if (error_num || (error_num = spider_db_errorno(conn)))
+        DBUG_RETURN(error_num);
+      else
+        DBUG_RETURN(ER_QUERY_ON_FOREIGN_DATA_SOURCE);
+    }
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+    error_num = res->fetch_table_status(
+      sts_mode,
+      share->stat
+    );
+    auto_increment_value = share->stat.auto_increment_value;
+    res->free_result();
+    delete res;
+    if (error_num)
+      DBUG_RETURN(error_num);
+  }
+  if (auto_increment_value > share->lgtm_tblhnd_share->auto_increment_value)
+  {
+    share->lgtm_tblhnd_share->auto_increment_value = auto_increment_value;
+    DBUG_PRINT("info",("spider auto_increment_value=%llu",
+      share->lgtm_tblhnd_share->auto_increment_value));
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::crd_mode_exchange(
+  int crd_mode
+) {
+  DBUG_ENTER("spider_oracle_handler::crd_mode_exchange");
+  DBUG_PRINT("info",("spider crd_mode=%d", crd_mode));
+  DBUG_RETURN(1);
+}
+
+int spider_oracle_handler::show_index(
+  int link_idx,
+  int crd_mode
+) {
+  int error_num;
+  SPIDER_CONN *conn = spider->conns[link_idx];
+  SPIDER_SHARE *share = spider->share;
+  TABLE *table = spider->get_table();
+  SPIDER_DB_RESULT *res;
+  int roop_count;
+  longlong *tmp_cardinality;
+  uint pos = (2 * spider->conn_link_idx[link_idx]);
+  DBUG_ENTER("spider_oracle_handler::show_index");
+  DBUG_PRINT("info",("spider crd_mode=%d", crd_mode));
+  if (crd_mode == 1)
+  {
+    for (roop_count = 0, tmp_cardinality = share->cardinality;
+      roop_count < (int) table->s->fields;
+      roop_count++, tmp_cardinality++)
+    {
+      if (!spider_bit_is_set(share->cardinality_upd, roop_count))
+      {
+        DBUG_PRINT("info",
+          ("spider init column cardinality id=%d", roop_count));
+        *tmp_cardinality = 1;
+      }
+    }
+  } else {
+    pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+    pthread_mutex_lock(&conn->mta_conn_mutex);
+    SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    conn->need_mon = &spider->need_mons[link_idx];
+    DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = TRUE;
+    conn->mta_conn_mutex_unlock_later = TRUE;
+    spider_conn_set_timeout_from_share(conn, link_idx,
+      spider->wide_handler->trx->thd,
+      share);
+    if (
+      (error_num = spider_db_set_names(spider, conn, link_idx)) ||
+      (
+        spider_db_query(
+          conn,
+          oracle_share->show_index[1 + pos].ptr(),
+          oracle_share->show_index[1 + pos].length(),
+          -1,
+          &spider->need_mons[link_idx]) &&
+        (error_num = spider_db_errorno(conn))
+      )
+    ) {
+      if (
+        error_num == ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM &&
+        !conn->disable_reconnect
+      ) {
+        /* retry */
+        if ((error_num = spider_db_ping(spider, conn, link_idx)))
+        {
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+          DBUG_RETURN(error_num);
+        }
+        if ((error_num = spider_db_set_names(spider, conn, link_idx)))
+        {
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+          DBUG_RETURN(error_num);
+        }
+        spider_conn_set_timeout_from_share(conn, link_idx,
+          spider->wide_handler->trx->thd,
+          share);
+        if (spider_db_query(
+          conn,
+          oracle_share->show_index[1 + pos].ptr(),
+          oracle_share->show_index[1 + pos].length(),
+          -1,
+          &spider->need_mons[link_idx])
+        ) {
+          DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+          DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+          conn->mta_conn_mutex_lock_already = FALSE;
+          conn->mta_conn_mutex_unlock_later = FALSE;
+          DBUG_RETURN(spider_db_errorno(conn));
+        }
+      } else {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        DBUG_RETURN(error_num);
+      }
+    }
+    st_spider_db_request_key request_key;
+    request_key.spider_thread_id = spider->wide_handler->trx->spider_thread_id;
+    request_key.query_id = spider->wide_handler->trx->thd->query_id;
+    request_key.handler = spider;
+    request_key.request_id = 1;
+    request_key.next = NULL;
+    if (!(res = conn->db_conn->store_result(NULL, &request_key, &error_num)))
+    {
+      if (error_num || (error_num = spider_db_errorno(conn)))
+      {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        DBUG_RETURN(error_num);
+      }
+      /* no record is ok */
+    }
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+    if (res)
+    {
+      error_num = res->fetch_table_cardinality(
+        crd_mode,
+        table,
+        share->cardinality,
+        share->cardinality_upd,
+        share->bitmap_size
+      );
+    }
+    for (roop_count = 0, tmp_cardinality = share->cardinality;
+      roop_count < (int) table->s->fields;
+      roop_count++, tmp_cardinality++)
+    {
+      if (!spider_bit_is_set(share->cardinality_upd, roop_count))
+      {
+        DBUG_PRINT("info",
+          ("spider init column cardinality id=%d", roop_count));
+        *tmp_cardinality = 1;
+      }
+    }
+    if (res)
+    {
+      res->free_result();
+      delete res;
+    }
+    if (error_num)
+      DBUG_RETURN(error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::show_records(
+  int link_idx
+) {
+  int error_num;
+  SPIDER_CONN *conn = spider->conns[link_idx];
+  SPIDER_DB_RESULT *res;
+  SPIDER_SHARE *share = spider->share;
+  uint pos = spider->conn_link_idx[link_idx];
+  DBUG_ENTER("spider_oracle_handler::show_records");
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = &spider->need_mons[link_idx];
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  spider_conn_set_timeout_from_share(conn, link_idx,
+    spider->wide_handler->trx->thd,
+    share);
+  if (
+    (error_num = spider_db_set_names(spider, conn, link_idx)) ||
+    (
+      spider_db_query(
+        conn,
+        oracle_share->show_records[pos].ptr(),
+        oracle_share->show_records[pos].length(),
+        -1,
+        &spider->need_mons[link_idx]) &&
+      (error_num = spider_db_errorno(conn))
+    )
+  ) {
+    if (
+      error_num == ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM &&
+      !conn->disable_reconnect
+    ) {
+      /* retry */
+      if ((error_num = spider_db_ping(spider, conn, link_idx)))
+      {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        DBUG_PRINT("info", ("spider error_num=%d 1", error_num));
+        DBUG_RETURN(error_num);
+      }
+      if ((error_num = spider_db_set_names(spider, conn, link_idx)))
+      {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        DBUG_PRINT("info", ("spider error_num=%d 2", error_num));
+        DBUG_RETURN(error_num);
+      }
+      spider_conn_set_timeout_from_share(conn, link_idx,
+        spider->wide_handler->trx->thd,
+        share);
+      if (spider_db_query(
+        conn,
+        oracle_share->show_records[pos].ptr(),
+        oracle_share->show_records[pos].length(),
+        -1,
+        &spider->need_mons[link_idx])
+      ) {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        DBUG_PRINT("info", ("spider error_num=%d 3", error_num));
+        DBUG_RETURN(spider_db_errorno(conn));
+      }
+    } else {
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      DBUG_PRINT("info", ("spider error_num=%d 4", error_num));
+      DBUG_RETURN(error_num);
+    }
+  }
+  st_spider_db_request_key request_key;
+  request_key.spider_thread_id = spider->wide_handler->trx->spider_thread_id;
+  request_key.query_id = spider->wide_handler->trx->thd->query_id;
+  request_key.handler = spider;
+  request_key.request_id = 1;
+  request_key.next = NULL;
+  if (!(res = conn->db_conn->store_result(NULL, &request_key, &error_num)))
+  {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    if (error_num)
+    {
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      DBUG_PRINT("info", ("spider error_num=%d 5", error_num));
+      DBUG_RETURN(error_num);
+    }
+    else if (error_num || (error_num = spider_db_errorno(conn)))
+    {
+      DBUG_PRINT("info", ("spider error_num=%d 6", error_num));
+      DBUG_RETURN(error_num);
+    } else {
+      DBUG_PRINT("info", ("spider error_num=%d 7",
+        ER_QUERY_ON_FOREIGN_DATA_SOURCE));
+      DBUG_RETURN(ER_QUERY_ON_FOREIGN_DATA_SOURCE);
+    }
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  error_num = res->fetch_table_records(
+    1,
+    spider->table_rows
+  );
+  res->free_result();
+  delete res;
+  if (error_num)
+  {
+    DBUG_PRINT("info", ("spider error_num=%d 7", error_num));
+    DBUG_RETURN(error_num);
+  }
+  spider->wide_handler->trx->direct_aggregate_count++;
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::show_autoinc(
+  int link_idx
+) {
+  int error_num;
+  SPIDER_CONN *conn = spider->conns[link_idx];
+  SPIDER_DB_RESULT *res;
+  SPIDER_SHARE *share = spider->share;
+  uint pos = spider->conn_link_idx[link_idx];
+  ulonglong auto_increment_value;
+  DBUG_ENTER("spider_oracle_handler::show_autoinc");
+  if (!oracle_share->show_autoinc)
+    DBUG_RETURN(0);
+
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = &spider->need_mons[link_idx];
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  spider_conn_set_timeout_from_share(conn, link_idx,
+    spider->wide_handler->trx->thd,
+    share);
+  if (
+    (error_num = spider_db_set_names(spider, conn, link_idx)) ||
+    (
+      spider_db_query(
+        conn,
+        oracle_share->show_autoinc[pos].ptr(),
+        oracle_share->show_autoinc[pos].length(),
+        -1,
+        &spider->need_mons[link_idx]) &&
+      (error_num = spider_db_errorno(conn))
+    )
+  ) {
+    if (
+      error_num == ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM &&
+      !conn->disable_reconnect
+    ) {
+      /* retry */
+      if ((error_num = spider_db_ping(spider, conn, link_idx)))
+      {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        DBUG_PRINT("info", ("spider error_num=%d 1", error_num));
+        DBUG_RETURN(error_num);
+      }
+      if ((error_num = spider_db_set_names(spider, conn, link_idx)))
+      {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        DBUG_PRINT("info", ("spider error_num=%d 2", error_num));
+        DBUG_RETURN(error_num);
+      }
+      spider_conn_set_timeout_from_share(conn, link_idx,
+        spider->wide_handler->trx->thd,
+        share);
+      if (spider_db_query(
+        conn,
+        oracle_share->show_records[pos].ptr(),
+        oracle_share->show_records[pos].length(),
+        -1,
+        &spider->need_mons[link_idx])
+      ) {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        DBUG_PRINT("info", ("spider error_num=%d 3", error_num));
+        DBUG_RETURN(spider_db_errorno(conn));
+      }
+    } else {
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      DBUG_PRINT("info", ("spider error_num=%d 4", error_num));
+      DBUG_RETURN(error_num);
+    }
+  }
+  st_spider_db_request_key request_key;
+  request_key.spider_thread_id = spider->wide_handler->trx->spider_thread_id;
+  request_key.query_id = spider->wide_handler->trx->thd->query_id;
+  request_key.handler = spider;
+  request_key.request_id = 1;
+  request_key.next = NULL;
+  if (!(res = conn->db_conn->store_result(NULL, &request_key, &error_num)))
+  {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    if (error_num)
+    {
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      DBUG_PRINT("info", ("spider error_num=%d 5", error_num));
+      DBUG_RETURN(error_num);
+    }
+    else if ((error_num = spider_db_errorno(conn)))
+    {
+      DBUG_PRINT("info", ("spider error_num=%d 6", error_num));
+      DBUG_RETURN(error_num);
+    } else {
+      DBUG_PRINT("info", ("spider error_num=%d 7",
+        ER_QUERY_ON_FOREIGN_DATA_SOURCE));
+      DBUG_RETURN(ER_QUERY_ON_FOREIGN_DATA_SOURCE);
+    }
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  error_num = res->fetch_table_records(
+    1,
+    auto_increment_value
+  );
+  res->free_result();
+  delete res;
+  if (error_num)
+  {
+    DBUG_PRINT("info", ("spider error_num=%d 7", error_num));
+    DBUG_RETURN(error_num);
+  }
+  if (auto_increment_value >=
+    share->lgtm_tblhnd_share->auto_increment_value)
+  {
+    share->lgtm_tblhnd_share->auto_increment_value =
+      auto_increment_value + 1;
+    DBUG_PRINT("info",("spider auto_increment_value=%llu",
+      share->lgtm_tblhnd_share->auto_increment_value));
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::show_last_insert_id(
+  int link_idx,
+  ulonglong &last_insert_id
+) {
+  int error_num;
+  SPIDER_CONN *conn = spider->conns[link_idx];
+  SPIDER_DB_RESULT *res;
+  uint pos = spider->conn_link_idx[link_idx];
+  spider_db_oracle *db_oracle = (spider_db_oracle *) conn->db_conn;
+  DBUG_ENTER("spider_oracle_handler::show_last_insert_id");
+  if (!oracle_share->show_last_insert_id)
+  {
+    DBUG_ASSERT(0);
+    last_insert_id = 0;
+    db_oracle->stored_last_insert_id = 0;
+    DBUG_RETURN(0);
+  }
+
+  if (
+    spider_db_query(
+      conn,
+      oracle_share->show_last_insert_id[pos].ptr(),
+      oracle_share->show_last_insert_id[pos].length(),
+      -1,
+      &spider->need_mons[link_idx]) &&
+    (error_num = spider_db_errorno(conn))
+  ) {
+    DBUG_PRINT("info", ("spider error_num=%d 4", error_num));
+    DBUG_RETURN(error_num);
+  }
+  st_spider_db_request_key request_key;
+  request_key.spider_thread_id = spider->wide_handler->trx->spider_thread_id;
+  request_key.query_id = spider->wide_handler->trx->thd->query_id;
+  request_key.handler = spider;
+  request_key.request_id = 1;
+  request_key.next = NULL;
+  if (!(res = conn->db_conn->store_result(NULL, &request_key, &error_num)))
+  {
+    if (error_num || (error_num = spider_db_errorno(conn)))
+    {
+      DBUG_PRINT("info", ("spider error_num=%d 5", error_num));
+      DBUG_RETURN(error_num);
+    } else {
+      DBUG_PRINT("info", ("spider error_num=%d 6",
+        ER_QUERY_ON_FOREIGN_DATA_SOURCE));
+      DBUG_RETURN(ER_QUERY_ON_FOREIGN_DATA_SOURCE);
+    }
+  }
+  error_num = res->fetch_table_records(
+    1,
+    last_insert_id
+  );
+  res->free_result();
+  delete res;
+  if (error_num)
+  {
+    DBUG_PRINT("info", ("spider error_num=%d 7", error_num));
+    DBUG_RETURN(error_num);
+  }
+  db_oracle->stored_last_insert_id = last_insert_id;
+  DBUG_RETURN(0);
+}
+
+ha_rows spider_oracle_handler::explain_select(
+  const key_range *start_key,
+  const key_range *end_key,
+  int link_idx
+) {
+  int error_num;
+  SPIDER_CONN *conn = spider->conns[link_idx];
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  spider_string *str = &result_list->sqls[link_idx];
+  SPIDER_DB_RESULT *res;
+  ha_rows rows;
+  spider_db_handler *dbton_hdl = spider->dbton_handler[conn->dbton_id];
+  DBUG_ENTER("spider_oracle_handler::explain_select");
+  if ((error_num = dbton_hdl->append_explain_select_part(
+    start_key, end_key, SPIDER_SQL_TYPE_OTHER_SQL, link_idx)))
+  {
+    my_errno = error_num;
+    DBUG_RETURN(HA_POS_ERROR);
+  }
+
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = &spider->need_mons[link_idx];
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  spider_conn_set_timeout_from_share(conn, link_idx,
+    spider->wide_handler->trx->thd,
+    spider->share);
+  if (
+    (error_num = spider_db_set_names(spider, conn, link_idx)) ||
+    (
+      spider_db_query(
+        conn,
+        str->ptr(),
+        str->length(),
+        -1,
+        &spider->need_mons[link_idx]) &&
+      (error_num = spider_db_errorno(conn))
+    )
+  ) {
+    if (
+      error_num == ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM &&
+      !conn->disable_reconnect
+    ) {
+      /* retry */
+      if ((error_num = spider_db_ping(spider, conn, link_idx)))
+      {
+        if (spider->check_error_mode(error_num))
+          my_errno = error_num;
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        DBUG_RETURN(HA_POS_ERROR);
+      }
+      if ((error_num = spider_db_set_names(spider, conn, link_idx)))
+      {
+        if (spider->check_error_mode(error_num))
+          my_errno = error_num;
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        DBUG_RETURN(HA_POS_ERROR);
+      }
+      spider_conn_set_timeout_from_share(conn, link_idx,
+        spider->wide_handler->trx->thd,
+        spider->share);
+      if (spider_db_query(
+        conn,
+        str->ptr(),
+        str->length(),
+        -1,
+        &spider->need_mons[link_idx])
+      ) {
+        error_num = spider_db_errorno(conn);
+        if (spider->check_error_mode(error_num))
+          my_errno = error_num;
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        DBUG_RETURN(HA_POS_ERROR);
+      }
+    } else {
+      if (spider->check_error_mode(error_num))
+        my_errno = error_num;
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      DBUG_RETURN(HA_POS_ERROR);
+    }
+  }
+  st_spider_db_request_key request_key;
+  request_key.spider_thread_id = spider->wide_handler->trx->spider_thread_id;
+  request_key.query_id = spider->wide_handler->trx->thd->query_id;
+  request_key.handler = spider;
+  request_key.request_id = 1;
+  request_key.next = NULL;
+  if (!(res = conn->db_conn->store_result(NULL, &request_key, &error_num)))
+  {
+    if (error_num || (error_num = spider_db_errorno(conn)))
+    {
+      if (spider->check_error_mode(error_num))
+        my_errno = error_num;
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      DBUG_RETURN(HA_POS_ERROR);
+    } else {
+      my_errno = ER_QUERY_ON_FOREIGN_DATA_SOURCE;
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      DBUG_RETURN(HA_POS_ERROR);
+    }
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  error_num = res->fetch_table_records(
+    2,
+    rows
+  );
+  res->free_result();
+  delete res;
+  if (error_num)
+  {
+    my_errno = error_num;
+    DBUG_RETURN(HA_POS_ERROR);
+  }
+  DBUG_RETURN(rows);
+}
+
+int spider_oracle_handler::lock_tables(
+  int link_idx
+) {
+  int error_num;
+  SPIDER_CONN *conn = spider->conns[link_idx];
+  spider_string *str = &sql;
+  DBUG_ENTER("spider_oracle_handler::lock_tables");
+  do {
+    str->length(0);
+    if ((error_num = conn->db_conn->append_lock_tables(str)))
+    {
+      DBUG_RETURN(error_num);
+    }
+    if (str->length())
+    {
+      pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+      pthread_mutex_lock(&conn->mta_conn_mutex);
+      SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      conn->need_mon = &spider->need_mons[link_idx];
+      DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = TRUE;
+      conn->mta_conn_mutex_unlock_later = TRUE;
+      if ((error_num = spider_db_set_names(spider, conn, link_idx)))
+      {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        DBUG_RETURN(error_num);
+      }
+      spider_conn_set_timeout_from_share(conn, link_idx,
+        spider->wide_handler->trx->thd,
+        spider->share);
+      if (spider_db_query(
+        conn,
+        str->ptr(),
+        str->length(),
+        -1,
+        &spider->need_mons[link_idx])
+      ) {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        DBUG_RETURN(spider_db_errorno(conn));
+      }
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+    }
+    if (!conn->table_locked)
+    {
+      conn->table_locked = TRUE;
+      spider->wide_handler->trx->locked_connections++;
+    }
+  } while (str->length());
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::unlock_tables(
+  int link_idx
+) {
+  int error_num;
+  SPIDER_CONN *conn = spider->conns[link_idx];
+  DBUG_ENTER("spider_oracle_handler::unlock_tables");
+  if (conn->table_locked)
+  {
+    if ((error_num = conn->db_conn->commit(&spider->need_mons[link_idx])))
+    {
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::disable_keys(
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  int error_num;
+  SPIDER_SHARE *share = spider->share;
+  spider_string *str = &spider->result_list.sqls[link_idx];
+  DBUG_ENTER("spider_oracle_handler::disable_keys");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str->length(0);
+  if ((error_num = append_disable_keys_part(SPIDER_SQL_TYPE_OTHER_HS,
+    link_idx)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = &spider->need_mons[link_idx];
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  if ((error_num = spider_db_set_names(spider, conn, link_idx)))
+  {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+    DBUG_RETURN(error_num);
+  }
+  spider_conn_set_timeout_from_share(conn, link_idx,
+    spider->wide_handler->trx->thd,
+    share);
+  if (spider_db_query(
+    conn,
+    str->ptr(),
+    str->length(),
+    -1,
+    &spider->need_mons[link_idx])
+  ) {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    error_num = spider_db_errorno(conn);
+    DBUG_RETURN(error_num);
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::enable_keys(
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  int error_num;
+  SPIDER_SHARE *share = spider->share;
+  spider_string *str = &spider->result_list.sqls[link_idx];
+  DBUG_ENTER("spider_oracle_handler::enable_keys");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str->length(0);
+  if ((error_num = append_enable_keys_part(SPIDER_SQL_TYPE_OTHER_HS,
+    link_idx)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = &spider->need_mons[link_idx];
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  if ((error_num = spider_db_set_names(spider, conn, link_idx)))
+  {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+    DBUG_RETURN(error_num);
+  }
+  spider_conn_set_timeout_from_share(conn, link_idx,
+    spider->wide_handler->trx->thd,
+    share);
+  if (spider_db_query(
+    conn,
+    str->ptr(),
+    str->length(),
+    -1,
+    &spider->need_mons[link_idx])
+  ) {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    error_num = spider_db_errorno(conn);
+    DBUG_RETURN(error_num);
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::check_table(
+  SPIDER_CONN *conn,
+  int link_idx,
+  HA_CHECK_OPT* check_opt
+) {
+  int error_num;
+  SPIDER_SHARE *share = spider->share;
+  spider_string *str = &spider->result_list.sqls[link_idx];
+  DBUG_ENTER("spider_oracle_handler::check_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str->length(0);
+  if ((error_num = append_check_table_part(SPIDER_SQL_TYPE_OTHER_HS,
+    link_idx, check_opt)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = &spider->need_mons[link_idx];
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  if ((error_num = spider_db_set_names(spider, conn, link_idx)))
+  {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+    DBUG_RETURN(error_num);
+  }
+  spider_conn_set_timeout_from_share(conn, link_idx,
+    spider->wide_handler->trx->thd,
+    share);
+  if (spider_db_query(
+    conn,
+    str->ptr(),
+    str->length(),
+    -1,
+    &spider->need_mons[link_idx])
+  ) {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    error_num = spider_db_errorno(conn);
+    DBUG_RETURN(error_num);
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::repair_table(
+  SPIDER_CONN *conn,
+  int link_idx,
+  HA_CHECK_OPT* check_opt
+) {
+  int error_num;
+  SPIDER_SHARE *share = spider->share;
+  spider_string *str = &spider->result_list.sqls[link_idx];
+  DBUG_ENTER("spider_oracle_handler::repair_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str->length(0);
+  if ((error_num = append_repair_table_part(SPIDER_SQL_TYPE_OTHER_HS,
+    link_idx, check_opt)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = &spider->need_mons[link_idx];
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  if ((error_num = spider_db_set_names(spider, conn, link_idx)))
+  {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+    DBUG_RETURN(error_num);
+  }
+  spider_conn_set_timeout_from_share(conn, link_idx,
+    spider->wide_handler->trx->thd,
+    share);
+  if (spider_db_query(
+    conn,
+    str->ptr(),
+    str->length(),
+    -1,
+    &spider->need_mons[link_idx])
+  ) {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    error_num = spider_db_errorno(conn);
+    DBUG_RETURN(error_num);
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::analyze_table(
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  int error_num;
+  SPIDER_SHARE *share = spider->share;
+  spider_string *str = &spider->result_list.sqls[link_idx];
+  DBUG_ENTER("spider_oracle_handler::analyze_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str->length(0);
+  if ((error_num = append_analyze_table_part(SPIDER_SQL_TYPE_OTHER_HS,
+    link_idx)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = &spider->need_mons[link_idx];
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  if ((error_num = spider_db_set_names(spider, conn, link_idx)))
+  {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+    DBUG_RETURN(error_num);
+  }
+  spider_conn_set_timeout_from_share(conn, link_idx,
+    spider->wide_handler->trx->thd,
+    share);
+  if (spider_db_query(
+    conn,
+    str->ptr(),
+    str->length(),
+    -1,
+    &spider->need_mons[link_idx])
+  ) {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    error_num = spider_db_errorno(conn);
+    DBUG_RETURN(error_num);
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::optimize_table(
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  int error_num;
+  SPIDER_SHARE *share = spider->share;
+  spider_string *str = &spider->result_list.sqls[link_idx];
+  DBUG_ENTER("spider_oracle_handler::optimize_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str->length(0);
+  if ((error_num = append_optimize_table_part(SPIDER_SQL_TYPE_OTHER_HS,
+    link_idx)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = &spider->need_mons[link_idx];
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  if ((error_num = spider_db_set_names(spider, conn, link_idx)))
+  {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+    DBUG_RETURN(error_num);
+  }
+  spider_conn_set_timeout_from_share(conn, link_idx,
+    spider->wide_handler->trx->thd,
+    share);
+  if (spider_db_query(
+    conn,
+    str->ptr(),
+    str->length(),
+    -1,
+    &spider->need_mons[link_idx])
+  ) {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    error_num = spider_db_errorno(conn);
+    DBUG_RETURN(error_num);
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::flush_tables(
+  SPIDER_CONN *conn,
+  int link_idx,
+  bool lock
+) {
+  int error_num;
+  SPIDER_SHARE *share = spider->share;
+  spider_string *str = &spider->result_list.sqls[link_idx];
+  DBUG_ENTER("spider_oracle_handler::flush_tables");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str->length(0);
+  if ((error_num = append_flush_tables_part(SPIDER_SQL_TYPE_OTHER_HS,
+    link_idx, lock)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  spider_conn_set_timeout_from_share(conn, link_idx,
+    spider->wide_handler->trx->thd,
+    share);
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = &spider->need_mons[link_idx];
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  if (spider_db_query(
+    conn,
+    str->ptr(),
+    str->length(),
+    -1,
+    &spider->need_mons[link_idx])
+  ) {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    error_num = spider_db_errorno(conn);
+    DBUG_RETURN(error_num);
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::flush_logs(
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  int error_num;
+  SPIDER_SHARE *share = spider->share;
+  DBUG_ENTER("spider_oracle_handler::flush_logs");
+  DBUG_PRINT("info",("spider this=%p", this));
+  spider_conn_set_timeout_from_share(conn, link_idx,
+    spider->wide_handler->trx->thd,
+    share);
+  pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+  pthread_mutex_lock(&conn->mta_conn_mutex);
+  SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  conn->need_mon = &spider->need_mons[link_idx];
+  DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = TRUE;
+  conn->mta_conn_mutex_unlock_later = TRUE;
+  if (spider_db_query(
+    conn,
+    SPIDER_SQL_FLUSH_LOGS_STR,
+    SPIDER_SQL_FLUSH_LOGS_LEN,
+    -1,
+    &spider->need_mons[link_idx])
+  ) {
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    error_num = spider_db_errorno(conn);
+    DBUG_RETURN(error_num);
+  }
+  DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+  DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+  conn->mta_conn_mutex_lock_already = FALSE;
+  conn->mta_conn_mutex_unlock_later = FALSE;
+  SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+  pthread_mutex_unlock(&conn->mta_conn_mutex);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::insert_opened_handler(
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  spider_db_oracle *db_conn = (spider_db_oracle *) conn->db_conn;
+  SPIDER_LINK_FOR_HASH *tmp_link_for_hash = &link_for_hash[link_idx];
+  DBUG_ASSERT(tmp_link_for_hash->spider == spider);
+  DBUG_ASSERT(tmp_link_for_hash->link_idx == link_idx);
+  uint old_elements = db_conn->handler_open_array.max_element;
+  DBUG_ENTER("spider_oracle_handler::insert_opened_handler");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (insert_dynamic(&db_conn->handler_open_array,
+    (uchar*) &tmp_link_for_hash))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  if (db_conn->handler_open_array.max_element > old_elements)
+  {
+    spider_alloc_calc_mem(spider_current_trx,
+      db_conn->handler_open_array,
+      (db_conn->handler_open_array.max_element - old_elements) *
+      db_conn->handler_open_array.size_of_element);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::delete_opened_handler(
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  spider_db_oracle *db_conn = (spider_db_oracle *) conn->db_conn;
+  uint roop_count, elements = db_conn->handler_open_array.elements;
+  SPIDER_LINK_FOR_HASH *tmp_link_for_hash;
+  DBUG_ENTER("spider_oracle_handler::delete_opened_handler");
+  DBUG_PRINT("info",("spider this=%p", this));
+  for (roop_count = 0; roop_count < elements; roop_count++)
+  {
+    get_dynamic(&db_conn->handler_open_array, (uchar *) &tmp_link_for_hash,
+      roop_count);
+    if (tmp_link_for_hash == &link_for_hash[link_idx])
+    {
+      delete_dynamic_element(&db_conn->handler_open_array, roop_count);
+      break;
+    }
+  }
+  DBUG_ASSERT(roop_count < elements);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::sync_from_clone_source(
+  spider_db_handler *dbton_hdl
+) {
+  DBUG_ENTER("spider_oracle_handler::sync_from_clone_source");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(0);
+}
+
+bool spider_oracle_handler::support_use_handler(
+  int use_handler
+) {
+  DBUG_ENTER("spider_oracle_handler::support_use_handler");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(FALSE);
+}
+
+void spider_oracle_handler::minimum_select_bitmap_create()
+{
+  TABLE *table = spider->get_table();
+  Field **field_p;
+  DBUG_ENTER("spider_oracle_handler::minimum_select_bitmap_create");
+  memset(minimum_select_bitmap, 0, no_bytes_in_map(table->read_set));
+  if (
+    spider->use_index_merge ||
+#ifdef HA_CAN_BULK_ACCESS
+    (spider->is_clone && !spider->is_bulk_access_clone)
+#else
+    spider->is_clone
+#endif
+  ) {
+    /* need preparing for cmp_ref */
+    TABLE_SHARE *table_share = table->s;
+    if (
+      table_share->primary_key == MAX_KEY
+    ) {
+      /* need all columns */
+      memset(minimum_select_bitmap, 0xFF, no_bytes_in_map(table->read_set));
+      DBUG_VOID_RETURN;
+    } else {
+      /* need primary key columns */
+      uint roop_count;
+      KEY *key_info;
+      KEY_PART_INFO *key_part;
+      Field *field;
+      key_info = &table_share->key_info[table_share->primary_key];
+      key_part = key_info->key_part;
+      for (roop_count = 0;
+        roop_count < spider_user_defined_key_parts(key_info);
+        roop_count++)
+      {
+        field = key_part[roop_count].field;
+        spider_set_bit(minimum_select_bitmap, field->field_index);
+      }
+    }
+  }
+  for (field_p = table->field; *field_p; field_p++)
+  {
+    uint field_index = (*field_p)->field_index;
+    if (
+      spider_bit_is_set(spider->searched_bitmap, field_index) ||
+      bitmap_is_set(table->read_set, field_index) ||
+      bitmap_is_set(table->write_set, field_index)
+    ) {
+      spider_set_bit(minimum_select_bitmap, field_index);
+    }
+  }
+  DBUG_VOID_RETURN;
+}
+
+bool spider_oracle_handler::minimum_select_bit_is_set(
+  uint field_index
+) {
+  DBUG_ENTER("spider_oracle_handler::minimum_select_bit_is_set");
+  DBUG_PRINT("info",("spider field_index=%u", field_index));
+  DBUG_PRINT("info",("spider minimum_select_bitmap=%s",
+    spider_bit_is_set(minimum_select_bitmap, field_index) ?
+      "TRUE" : "FALSE"));
+  DBUG_RETURN(spider_bit_is_set(minimum_select_bitmap, field_index));
+}
+
+void spider_oracle_handler::copy_minimum_select_bitmap(
+  uchar *bitmap
+) {
+  int roop_count;
+  TABLE *table = spider->get_table();
+  DBUG_ENTER("spider_oracle_handler::copy_minimum_select_bitmap");
+  for (roop_count = 0;
+    roop_count < (int) ((table->s->fields + 7) / 8);
+    roop_count++)
+  {
+    bitmap[roop_count] =
+      minimum_select_bitmap[roop_count];
+    DBUG_PRINT("info",("spider roop_count=%d", roop_count));
+    DBUG_PRINT("info",("spider bitmap=%d",
+      bitmap[roop_count]));
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_oracle_handler::init_union_table_name_pos()
+{
+  DBUG_ENTER("spider_oracle_handler::init_union_table_name_pos");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!union_table_name_pos_first)
+  {
+    if (!spider_bulk_malloc(spider_current_trx, 238, MYF(MY_WME),
+      &union_table_name_pos_first, (uint) (sizeof(SPIDER_INT_HLD)),
+      NullS)
+    ) {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    union_table_name_pos_first->next = NULL;
+  }
+  union_table_name_pos_current = union_table_name_pos_first;
+  union_table_name_pos_current->tgt_num = 0;
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::set_union_table_name_pos()
+{
+  DBUG_ENTER("spider_oracle_handler::set_union_table_name_pos");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (union_table_name_pos_current->tgt_num >= SPIDER_INT_HLD_TGT_SIZE)
+  {
+    if (!union_table_name_pos_current->next)
+    {
+      if (!spider_bulk_malloc(spider_current_trx, 239, MYF(MY_WME),
+        &union_table_name_pos_current->next, (uint) (sizeof(SPIDER_INT_HLD)),
+        NullS)
+      ) {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+      union_table_name_pos_current->next->next = NULL;
+    }
+    union_table_name_pos_current = union_table_name_pos_current->next;
+    union_table_name_pos_current->tgt_num = 0;
+  }
+  union_table_name_pos_current->tgt[union_table_name_pos_current->tgt_num] =
+    table_name_pos;
+  ++union_table_name_pos_current->tgt_num;
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::reset_union_table_name(
+  spider_string *str,
+  int link_idx,
+  ulong sql_type
+) {
+  DBUG_ENTER("spider_oracle_handler::reset_union_table_name");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!union_table_name_pos_current)
+    DBUG_RETURN(0);
+
+  SPIDER_INT_HLD *tmp_pos = union_table_name_pos_first;
+  uint cur_num, pos_backup = str->length();
+  while(TRUE)
+  {
+    for (cur_num = 0; cur_num < tmp_pos->tgt_num; ++cur_num)
+    {
+      str->length(tmp_pos->tgt[cur_num]);
+      append_table_name_with_adjusting(str, link_idx, sql_type);
+    }
+    if (tmp_pos == union_table_name_pos_current)
+      break;
+    tmp_pos = tmp_pos->next;
+  }
+  str->length(pos_backup);
+  DBUG_RETURN(0);
+}
+
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+int spider_oracle_handler::append_from_and_tables_part(
+  spider_fields *fields,
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  SPIDER_TABLE_HOLDER *table_holder;
+  TABLE_LIST *table_list;
+  DBUG_ENTER("spider_oracle_handler::append_from_and_tables_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  fields->set_pos_to_first_table_holder();
+  table_holder = fields->get_next_table_holder();
+  table_list = table_holder->table->pos_in_table_list;
+  error_num = spider_db_oracle_utility.append_from_and_tables(fields, str,
+    table_list);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::reappend_tables_part(
+  spider_fields *fields,
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::reappend_tables_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = spider_db_oracle_utility.reappend_tables(fields,
+    link_idx_chain, str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_where_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_where_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = spider_db_oracle_utility.append_where(str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_having_part(
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_having_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = spider_db_oracle_utility.append_having(str);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_item_type_part(
+  Item *item,
+  const char *alias,
+  uint alias_length,
+  bool use_fields,
+  spider_fields *fields,
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_item_type_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = spider_db_print_item_type(item, NULL, spider, str,
+    alias, alias_length, spider_dbton_oracle.dbton_id, use_fields, fields);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_list_item_select_part(
+  List<Item> *select,
+  const char *alias,
+  uint alias_length,
+  bool use_fields,
+  spider_fields *fields,
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_list_item_select_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_list_item_select(select, str, alias, alias_length,
+    use_fields, fields);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_list_item_select(
+  List<Item> *select,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  bool use_fields,
+  spider_fields *fields
+) {
+  int error_num;
+  uint dbton_id = spider_dbton_oracle.dbton_id, length;
+  uint32 begin;
+  List_iterator_fast<Item> it(*select);
+  Item *item;
+  Field *field;
+  const char *item_name;
+  DBUG_ENTER("spider_oracle_handler::append_list_item_select");
+  DBUG_PRINT("info",("spider this=%p", this));
+  begin = str->length();
+  while ((item = it++))
+  {
+    if (item->const_item())
+    {
+      DBUG_PRINT("info",("spider const item"));
+      continue;
+    }
+    if ((error_num = spider_db_print_item_type(item, NULL, spider, str,
+      alias, alias_length, dbton_id, use_fields, fields)))
+    {
+      DBUG_RETURN(error_num);
+    }
+    field = *(fields->get_next_field_ptr());
+    if (field)
+    {
+      item_name = SPIDER_field_name_str(field);
+      length = SPIDER_field_name_length(field);
+    } else {
+      item_name = SPIDER_item_name_str(item);
+      length = SPIDER_item_name_length(item);
+    }
+    if (str->reserve(
+      SPIDER_SQL_COMMA_LEN + /* SPIDER_SQL_NAME_QUOTE_LEN */ 2 +
+      SPIDER_SQL_SPACE_LEN + length
+    ))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+    if ((error_num = spider_db_oracle_utility.append_escaped_name(str,
+      item_name, length)))
+    {
+      DBUG_RETURN(error_num);
+    }
+    str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+  if (begin == str->length())
+  {
+    /* no columns */
+    if (str->reserve(SPIDER_SQL_ONE_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str->q_append(SPIDER_SQL_ONE_STR, SPIDER_SQL_ONE_LEN);
+  } else {
+    str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_group_by_part(
+  ORDER *order,
+  const char *alias,
+  uint alias_length,
+  bool use_fields,
+  spider_fields *fields,
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_group_by_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_group_by(order, str, alias, alias_length,
+    use_fields, fields);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_group_by(
+  ORDER *order,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  bool use_fields,
+  spider_fields *fields
+) {
+  int error_num;
+  uint dbton_id = spider_dbton_oracle.dbton_id;
+  DBUG_ENTER("spider_oracle_handler::append_group_by");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (order)
+  {
+    if (str->reserve(SPIDER_SQL_GROUP_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_GROUP_STR, SPIDER_SQL_GROUP_LEN);
+    for (; order; order = order->next)
+    {
+      if ((error_num = spider_db_print_item_type((*order->item), NULL, spider,
+        str, alias, alias_length, dbton_id, use_fields, fields)))
+      {
+        DBUG_RETURN(error_num);
+      }
+      if (str->reserve(SPIDER_SQL_COMMA_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+    }
+    str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_handler::append_order_by_part(
+  ORDER *order,
+  const char *alias,
+  uint alias_length,
+  bool use_fields,
+  spider_fields *fields,
+  ulong sql_type
+) {
+  int error_num;
+  spider_string *str;
+  DBUG_ENTER("spider_oracle_handler::append_order_by_part");
+  DBUG_PRINT("info",("spider this=%p", this));
+  switch (sql_type)
+  {
+    case SPIDER_SQL_TYPE_SELECT_SQL:
+      str = &sql;
+      break;
+    default:
+      DBUG_RETURN(0);
+  }
+  error_num = append_order_by(order, str, alias, alias_length,
+    use_fields, fields);
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_handler::append_order_by(
+  ORDER *order,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  bool use_fields,
+  spider_fields *fields
+) {
+  int error_num;
+  uint dbton_id = spider_dbton_oracle.dbton_id;
+  DBUG_ENTER("spider_oracle_handler::append_order_by");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (order)
+  {
+    if (str->reserve(SPIDER_SQL_ORDER_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    str->q_append(SPIDER_SQL_ORDER_STR, SPIDER_SQL_ORDER_LEN);
+    for (; order; order = order->next)
+    {
+      if ((error_num = spider_db_print_item_type((*order->item), NULL, spider,
+        str, alias, alias_length, dbton_id, use_fields, fields)))
+      {
+        DBUG_RETURN(error_num);
+      }
+#ifdef SPIDER_ORDER_HAS_ENUM_ORDER
+      if (order->direction == ORDER::ORDER_DESC)
+#else
+      if (!order->asc)
+#endif
+      {
+        if (str->reserve(SPIDER_SQL_COMMA_LEN + SPIDER_SQL_DESC_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_DESC_STR, SPIDER_SQL_DESC_LEN);
+        str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+      } else {
+        if (str->reserve(SPIDER_SQL_COMMA_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+      }
+    }
+    str->length(str->length() - SPIDER_SQL_COMMA_LEN);
+  }
+  DBUG_RETURN(0);
+}
+#endif
+
+spider_oracle_copy_table::spider_oracle_copy_table(
+  spider_oracle_share *db_share
+) : spider_db_copy_table(
+  db_share
+),
+  oracle_share(db_share),
+  pos(0),
+  table_name_pos(0),
+  pos_diff(0),
+  table_lock_mode(0),
+  select_rownum_appended(FALSE),
+  first_str(NULL),
+  current_str(NULL)
+{
+  DBUG_ENTER("spider_oracle_copy_table::spider_oracle_copy_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_oracle_copy_table::~spider_oracle_copy_table()
+{
+  DBUG_ENTER("spider_oracle_copy_table::~spider_oracle_copy_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  while (first_str)
+  {
+    current_str = first_str;
+    first_str = first_str->next;
+    delete [] current_str;
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_oracle_copy_table::init()
+{
+  DBUG_ENTER("spider_oracle_copy_table::init");
+  DBUG_PRINT("info",("spider this=%p", this));
+  sql.init_calc_mem(213);
+  sql_part.init_calc_mem(215);
+  DBUG_RETURN(0);
+}
+
+void spider_oracle_copy_table::set_sql_charset(
+  CHARSET_INFO *cs
+) {
+  DBUG_ENTER("spider_oracle_copy_table::set_sql_charset");
+  DBUG_PRINT("info",("spider this=%p", this));
+  sql.set_charset(cs);
+  DBUG_VOID_RETURN;
+}
+
+int spider_oracle_copy_table::append_select_str()
+{
+  DBUG_ENTER("spider_oracle_copy_table::append_select_str");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql.reserve(SPIDER_SQL_SELECT_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  sql.q_append(SPIDER_SQL_SELECT_STR, SPIDER_SQL_SELECT_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_copy_table::append_insert_str(
+  int insert_flg
+) {
+  DBUG_ENTER("spider_oracle_copy_table::append_insert_str");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql.reserve(SPIDER_SQL_INSERT_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  sql.q_append(SPIDER_SQL_INSERT_STR, SPIDER_SQL_INSERT_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_copy_table::append_table_columns(
+  TABLE_SHARE *table_share
+) {
+  int error_num;
+  Field **field;
+  DBUG_ENTER("spider_oracle_copy_table::append_table_columns");
+  DBUG_PRINT("info",("spider this=%p", this));
+  for (field = table_share->field; *field; field++)
+  {
+    if (sql.reserve(SPIDER_SQL_NAME_QUOTE_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    sql.q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+    if ((error_num = spider_db_append_name_with_quote_str(&sql,
+      (*field)->field_name, spider_dbton_oracle.dbton_id)))
+      DBUG_RETURN(error_num);
+    if (sql.reserve(SPIDER_SQL_NAME_QUOTE_LEN + SPIDER_SQL_COMMA_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    sql.q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+    sql.q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  }
+  sql.length(sql.length() - SPIDER_SQL_COMMA_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_copy_table::append_from_str()
+{
+  DBUG_ENTER("spider_oracle_copy_table::append_from_str");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql.reserve(SPIDER_SQL_FROM_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  sql.q_append(SPIDER_SQL_FROM_STR, SPIDER_SQL_FROM_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_copy_table::append_table_name(
+  int link_idx
+) {
+  int error_num;
+  DBUG_ENTER("spider_oracle_copy_table::append_table_name");
+  DBUG_PRINT("info",("spider this=%p", this));
+  table_name_pos = sql.length();
+  error_num = oracle_share->append_table_name(&sql, link_idx);
+  store_link_idx = link_idx;
+  DBUG_RETURN(error_num);
+}
+
+void spider_oracle_copy_table::set_sql_pos()
+{
+  DBUG_ENTER("spider_oracle_copy_table::set_sql_pos");
+  DBUG_PRINT("info",("spider this=%p", this));
+  pos = sql.length();
+  DBUG_VOID_RETURN;
+}
+
+void spider_oracle_copy_table::set_sql_to_pos()
+{
+  DBUG_ENTER("spider_oracle_copy_table::set_sql_to_pos");
+  DBUG_PRINT("info",("spider this=%p", this));
+  sql.length(pos);
+  DBUG_VOID_RETURN;
+}
+
+int spider_oracle_copy_table::append_copy_where(
+  spider_db_copy_table *source_ct,
+  KEY *key_info,
+  ulong *last_row_pos,
+  ulong *last_lengths
+) {
+  int error_num, roop_count, roop_count2;
+  DBUG_ENTER("spider_oracle_copy_table::append_copy_where");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql.reserve(SPIDER_SQL_WHERE_LEN + SPIDER_SQL_OPEN_PAREN_LEN))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  sql.q_append(SPIDER_SQL_WHERE_STR, SPIDER_SQL_WHERE_LEN);
+  sql.q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  Field *field;
+  KEY_PART_INFO *key_part = key_info->key_part;
+  for (roop_count = spider_user_defined_key_parts(key_info) - 1;
+    roop_count >= 0; roop_count--)
+  {
+    for (roop_count2 = 0; roop_count2 < roop_count; roop_count2++)
+    {
+      field = key_part[roop_count2].field;
+      if ((error_num = copy_key_row(source_ct,
+        field, &last_row_pos[field->field_index],
+        &last_lengths[field->field_index],
+        SPIDER_SQL_EQUAL_STR, SPIDER_SQL_EQUAL_LEN)))
+      {
+        DBUG_RETURN(error_num);
+      }
+    }
+    field = key_part[roop_count2].field;
+    if ((error_num = copy_key_row(source_ct,
+      field, &last_row_pos[field->field_index],
+      &last_lengths[field->field_index],
+      SPIDER_SQL_GT_STR, SPIDER_SQL_GT_LEN)))
+    {
+      DBUG_RETURN(error_num);
+    }
+    sql.length(sql.length() - SPIDER_SQL_AND_LEN);
+    if (sql.reserve(SPIDER_SQL_CLOSE_PAREN_LEN +
+      SPIDER_SQL_OR_LEN + SPIDER_SQL_OPEN_PAREN_LEN))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    sql.q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+    sql.q_append(SPIDER_SQL_OR_STR, SPIDER_SQL_OR_LEN);
+    sql.q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  }
+  sql.length(sql.length() - SPIDER_SQL_OR_LEN - SPIDER_SQL_OPEN_PAREN_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_copy_table::append_key_order_str(
+  KEY *key_info,
+  int start_pos,
+  bool desc_flg
+) {
+  int length, error_num;
+  KEY_PART_INFO *key_part;
+  Field *field;
+  DBUG_ENTER("spider_oracle_copy_table::append_key_order_str");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (select_rownum_appended)
+  {
+    if (sql.reserve(SPIDER_SQL_SELECT_WRAPPER_TAIL_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    sql.q_append(SPIDER_SQL_SELECT_WRAPPER_TAIL_STR,
+      SPIDER_SQL_SELECT_WRAPPER_TAIL_LEN);
+    DBUG_RETURN(0);
+  }
+  sql_part.length(0);
+  if (sql_part.reserve(sql.length() + SPIDER_SQL_SELECT_WRAPPER_HEAD_LEN +
+    SPIDER_SQL_ROW_NUMBER_HEAD_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  sql_part.q_append(SPIDER_SQL_SELECT_WRAPPER_HEAD_STR,
+    SPIDER_SQL_SELECT_WRAPPER_HEAD_LEN);
+  sql_part.q_append(sql.ptr(), table_name_pos - SPIDER_SQL_FROM_LEN);
+  sql_part.q_append(SPIDER_SQL_ROW_NUMBER_HEAD_STR,
+    SPIDER_SQL_ROW_NUMBER_HEAD_LEN);
+  if ((int) spider_user_defined_key_parts(key_info) > start_pos)
+  {
+    if (desc_flg == TRUE)
+    {
+      for (
+        key_part = key_info->key_part + start_pos,
+        length = 0;
+        length + start_pos < (int) spider_user_defined_key_parts(key_info);
+        key_part++,
+        length++
+      ) {
+        field = key_part->field;
+        if (sql_part.reserve(SPIDER_SQL_NAME_QUOTE_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        sql_part.q_append(SPIDER_SQL_NAME_QUOTE_STR,
+          SPIDER_SQL_NAME_QUOTE_LEN);
+        if ((error_num = spider_db_append_name_with_quote_str(&sql_part,
+          field->field_name, spider_dbton_oracle.dbton_id)))
+          DBUG_RETURN(error_num);
+        if (key_part->key_part_flag & HA_REVERSE_SORT)
+        {
+          if (sql_part.reserve(SPIDER_SQL_NAME_QUOTE_LEN +
+            SPIDER_SQL_COMMA_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          sql_part.q_append(SPIDER_SQL_NAME_QUOTE_STR,
+            SPIDER_SQL_NAME_QUOTE_LEN);
+          sql_part.q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+        } else {
+          if (sql_part.reserve(SPIDER_SQL_NAME_QUOTE_LEN +
+            SPIDER_SQL_DESC_LEN + SPIDER_SQL_COMMA_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          sql_part.q_append(SPIDER_SQL_NAME_QUOTE_STR,
+            SPIDER_SQL_NAME_QUOTE_LEN);
+          sql_part.q_append(SPIDER_SQL_DESC_STR, SPIDER_SQL_DESC_LEN);
+          sql_part.q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+        }
+      }
+    } else {
+      for (
+        key_part = key_info->key_part + start_pos,
+        length = 0;
+        length + start_pos < (int) spider_user_defined_key_parts(key_info);
+        key_part++,
+        length++
+      ) {
+        field = key_part->field;
+        if (sql_part.reserve(SPIDER_SQL_NAME_QUOTE_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        sql_part.q_append(SPIDER_SQL_NAME_QUOTE_STR,
+          SPIDER_SQL_NAME_QUOTE_LEN);
+        if ((error_num = spider_db_append_name_with_quote_str(&sql_part,
+          field->field_name, spider_dbton_oracle.dbton_id)))
+          DBUG_RETURN(error_num);
+        if (key_part->key_part_flag & HA_REVERSE_SORT)
+        {
+          if (sql_part.reserve(SPIDER_SQL_NAME_QUOTE_LEN +
+            SPIDER_SQL_DESC_LEN + SPIDER_SQL_COMMA_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          sql_part.q_append(SPIDER_SQL_NAME_QUOTE_STR,
+            SPIDER_SQL_NAME_QUOTE_LEN);
+          sql_part.q_append(SPIDER_SQL_DESC_STR, SPIDER_SQL_DESC_LEN);
+          sql_part.q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+        } else {
+          if (sql_part.reserve(SPIDER_SQL_NAME_QUOTE_LEN +
+            SPIDER_SQL_COMMA_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          sql_part.q_append(SPIDER_SQL_NAME_QUOTE_STR,
+            SPIDER_SQL_NAME_QUOTE_LEN);
+          sql_part.q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+        }
+      }
+    }
+  }
+  if (desc_flg == TRUE)
+  {
+    if (sql_part.reserve(SPIDER_SQL_ROW_NUMBER_DESC_TAIL_LEN +
+      SPIDER_SQL_SELECT_WRAPPER_TAIL_LEN + sql.length() - table_name_pos +
+      SPIDER_SQL_FROM_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    sql_part.q_append(SPIDER_SQL_ROW_NUMBER_DESC_TAIL_STR,
+      SPIDER_SQL_ROW_NUMBER_DESC_TAIL_LEN);
+  } else {
+    if (sql_part.reserve(SPIDER_SQL_ROW_NUMBER_TAIL_LEN +
+      SPIDER_SQL_SELECT_WRAPPER_TAIL_LEN + sql.length() - table_name_pos +
+      SPIDER_SQL_FROM_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    sql_part.q_append(SPIDER_SQL_ROW_NUMBER_TAIL_STR,
+      SPIDER_SQL_ROW_NUMBER_TAIL_LEN);
+  }
+  pos_diff = sql_part.length() + SPIDER_SQL_FROM_LEN - table_name_pos;
+  sql_part.q_append(sql.ptr() + table_name_pos - SPIDER_SQL_FROM_LEN,
+    sql.length() - table_name_pos + SPIDER_SQL_FROM_LEN);
+  sql_part.q_append(SPIDER_SQL_SELECT_WRAPPER_TAIL_STR,
+    SPIDER_SQL_SELECT_WRAPPER_TAIL_LEN);
+
+  if ((int) spider_user_defined_key_parts(key_info) > start_pos)
+  {
+    if (sql.reserve(SPIDER_SQL_ORDER_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    sql.q_append(SPIDER_SQL_ORDER_STR, SPIDER_SQL_ORDER_LEN);
+    if (desc_flg == TRUE)
+    {
+      for (
+        key_part = key_info->key_part + start_pos,
+        length = 0;
+        length + start_pos < (int) spider_user_defined_key_parts(key_info);
+        key_part++,
+        length++
+      ) {
+        field = key_part->field;
+        if (sql.reserve(SPIDER_SQL_NAME_QUOTE_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        sql.q_append(SPIDER_SQL_NAME_QUOTE_STR,
+          SPIDER_SQL_NAME_QUOTE_LEN);
+        if ((error_num = spider_db_append_name_with_quote_str(&sql,
+          field->field_name, spider_dbton_oracle.dbton_id)))
+          DBUG_RETURN(error_num);
+        if (key_part->key_part_flag & HA_REVERSE_SORT)
+        {
+          if (sql.reserve(SPIDER_SQL_NAME_QUOTE_LEN + SPIDER_SQL_COMMA_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          sql.q_append(SPIDER_SQL_NAME_QUOTE_STR,
+            SPIDER_SQL_NAME_QUOTE_LEN);
+          sql.q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+        } else {
+          if (sql.reserve(SPIDER_SQL_NAME_QUOTE_LEN + SPIDER_SQL_DESC_LEN +
+            SPIDER_SQL_COMMA_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          sql.q_append(SPIDER_SQL_NAME_QUOTE_STR,
+            SPIDER_SQL_NAME_QUOTE_LEN);
+          sql.q_append(SPIDER_SQL_DESC_STR, SPIDER_SQL_DESC_LEN);
+          sql.q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+        }
+      }
+    } else {
+      for (
+        key_part = key_info->key_part + start_pos,
+        length = 0;
+        length + start_pos < (int) spider_user_defined_key_parts(key_info);
+        key_part++,
+        length++
+      ) {
+        field = key_part->field;
+        if (sql.reserve(SPIDER_SQL_NAME_QUOTE_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        sql.q_append(SPIDER_SQL_NAME_QUOTE_STR,
+          SPIDER_SQL_NAME_QUOTE_LEN);
+        if ((error_num = spider_db_append_name_with_quote_str(&sql,
+          field->field_name, spider_dbton_oracle.dbton_id)))
+          DBUG_RETURN(error_num);
+        if (key_part->key_part_flag & HA_REVERSE_SORT)
+        {
+          if (sql.reserve(SPIDER_SQL_NAME_QUOTE_LEN + SPIDER_SQL_DESC_LEN +
+            SPIDER_SQL_COMMA_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          sql.q_append(SPIDER_SQL_NAME_QUOTE_STR,
+            SPIDER_SQL_NAME_QUOTE_LEN);
+          sql.q_append(SPIDER_SQL_DESC_STR, SPIDER_SQL_DESC_LEN);
+          sql.q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+        } else {
+          if (sql.reserve(SPIDER_SQL_NAME_QUOTE_LEN + SPIDER_SQL_COMMA_LEN))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          sql.q_append(SPIDER_SQL_NAME_QUOTE_STR,
+            SPIDER_SQL_NAME_QUOTE_LEN);
+          sql.q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+        }
+      }
+    }
+    sql.length(sql.length() - SPIDER_SQL_COMMA_LEN);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_copy_table::append_limit(
+  longlong offset,
+  longlong limit
+) {
+  char buf[SPIDER_LONGLONG_LEN + 1];
+  uint32 length;
+  DBUG_ENTER("spider_oracle_copy_table::append_limit");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (offset || limit < 9223372036854775807LL)
+  {
+    if (!select_rownum_appended)
+    {
+      select_rownum_appended = TRUE;
+      table_name_pos = table_name_pos + pos_diff;
+      if (sql.copy(sql_part))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      pos = pos + pos_diff;
+    }
+    if (offset)
+    {
+      if (sql.reserve(SPIDER_SQL_BETWEEN_LEN + SPIDER_SQL_AND_LEN +
+        ((SPIDER_LONGLONG_LEN) * 2)))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      sql.q_append(SPIDER_SQL_BETWEEN_STR, SPIDER_SQL_BETWEEN_LEN);
+      length = (uint32) (my_charset_bin.longlong10_to_str)(
+        buf, SPIDER_LONGLONG_LEN + 1, -10, offset);
+      sql.q_append(buf, length);
+      sql.q_append(SPIDER_SQL_AND_STR, SPIDER_SQL_AND_LEN);
+      length = (uint32) (my_charset_bin.longlong10_to_str)(
+        buf, SPIDER_LONGLONG_LEN + 1, -10, limit);
+      sql.q_append(buf, length);
+    } else {
+      if (sql.reserve(SPIDER_SQL_HS_LTEQUAL_LEN +
+        (SPIDER_LONGLONG_LEN)))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      sql.q_append(SPIDER_SQL_HS_LTEQUAL_STR, SPIDER_SQL_HS_LTEQUAL_LEN);
+      length = (uint32) (my_charset_bin.longlong10_to_str)(
+        buf, SPIDER_LONGLONG_LEN + 1, -10, limit);
+      sql.q_append(buf, length);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_copy_table::append_into_str()
+{
+  DBUG_ENTER("spider_oracle_copy_table::append_into_str");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql.reserve(SPIDER_SQL_INTO_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  sql.q_append(SPIDER_SQL_INTO_STR, SPIDER_SQL_INTO_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_copy_table::append_open_paren_str()
+{
+  DBUG_ENTER("spider_oracle_copy_table::append_open_paren_str");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql.reserve(SPIDER_SQL_OPEN_PAREN_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  sql.q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_copy_table::append_values_str()
+{
+  DBUG_ENTER("spider_oracle_copy_table::append_values_str");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql.reserve(SPIDER_SQL_CLOSE_PAREN_LEN + SPIDER_SQL_VALUES_LEN +
+    SPIDER_SQL_OPEN_PAREN_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  sql.q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+  sql.q_append(SPIDER_SQL_VALUES_STR, SPIDER_SQL_VALUES_LEN);
+  sql.q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_copy_table::append_select_lock_str(
+  int lock_mode
+) {
+  DBUG_ENTER("spider_oracle_copy_table::append_select_lock_str");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (select_rownum_appended)
+  {
+    int error_num;
+    table_lock_mode = lock_mode;
+    sql_part.length(0);
+    if (sql_part.reserve(SPIDER_SQL_LOCK_TABLE_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    sql_part.q_append(SPIDER_SQL_LOCK_TABLE_STR, SPIDER_SQL_LOCK_TABLE_LEN);
+    if ((error_num = oracle_share->append_table_name(&sql_part,
+      store_link_idx)))
+      DBUG_RETURN(error_num);
+    if (lock_mode == SPIDER_LOCK_MODE_EXCLUSIVE)
+    {
+      if (sql_part.reserve(SPIDER_SQL_LOCK_TABLE_EXCLUSIVE_MODE_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      sql_part.q_append(SPIDER_SQL_LOCK_TABLE_EXCLUSIVE_MODE_STR,
+        SPIDER_SQL_LOCK_TABLE_EXCLUSIVE_MODE_LEN);
+    } else if (lock_mode == SPIDER_LOCK_MODE_SHARED)
+    {
+      if (sql_part.reserve(SPIDER_SQL_LOCK_TABLE_SHARE_MODE_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      sql_part.q_append(SPIDER_SQL_LOCK_TABLE_SHARE_MODE_STR,
+        SPIDER_SQL_LOCK_TABLE_SHARE_MODE_LEN);
+    }
+  } else {
+    if (lock_mode == SPIDER_LOCK_MODE_EXCLUSIVE)
+    {
+      if (sql.reserve(SPIDER_SQL_FOR_UPDATE_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      sql.q_append(SPIDER_SQL_FOR_UPDATE_STR, SPIDER_SQL_FOR_UPDATE_LEN);
+    } else if (lock_mode == SPIDER_LOCK_MODE_SHARED)
+    {
+      if (sql.reserve(SPIDER_SQL_FOR_UPDATE_LEN))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      sql.q_append(SPIDER_SQL_FOR_UPDATE_STR, SPIDER_SQL_FOR_UPDATE_LEN);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_copy_table::exec_query(
+  SPIDER_CONN *conn,
+  int quick_mode,
+  int *need_mon
+) {
+  int error_num = 0;
+  DBUG_ENTER("spider_oracle_copy_table::exec_query");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (current_str)
+  {
+    spider_string *tmp_str = first_str;
+    while (tmp_str && tmp_str != current_str)
+    {
+      if (
+        (error_num = spider_db_query(conn, tmp_str->ptr(), tmp_str->length(),
+          quick_mode, need_mon)) &&
+        error_num != HA_ERR_FOUND_DUPP_KEY
+      ) {
+        break;
+      }
+      tmp_str = tmp_str->next;
+    }
+    if (tmp_str == current_str)
+    {
+      error_num = spider_db_query(conn, tmp_str->ptr(), tmp_str->length(),
+        quick_mode, need_mon);
+    }
+    if (error_num == HA_ERR_FOUND_DUPP_KEY)
+      error_num = 0;
+    current_str = NULL;
+  } else {
+    if (table_lock_mode)
+    {
+      DBUG_PRINT("info",("spider table_lock_mode=%d", table_lock_mode));
+      spider_db_oracle *db_conn = (spider_db_oracle *) conn->db_conn;
+      db_conn->table_lock_mode = table_lock_mode;
+      db_conn->exec_lock_sql = &sql_part;
+      table_lock_mode = 0;
+    }
+    error_num = spider_db_query(conn, sql.ptr(), sql.length(), quick_mode,
+      need_mon);
+  }
+  DBUG_RETURN(error_num);
+}
+
+int spider_oracle_copy_table::copy_key_row(
+  spider_db_copy_table *source_ct,
+  Field *field,
+  ulong *row_pos,
+  ulong *length,
+  const char *joint_str,
+  const int joint_length
+) {
+  int error_num;
+  spider_string *source_str = &((spider_oracle_copy_table *) source_ct)->sql;
+  DBUG_ENTER("spider_oracle_copy_table::copy_key_row");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql.reserve(SPIDER_SQL_NAME_QUOTE_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  sql.q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  if ((error_num = spider_db_append_name_with_quote_str(&sql,
+    field->field_name, spider_dbton_oracle.dbton_id)))
+    DBUG_RETURN(error_num);
+  if (sql.reserve(SPIDER_SQL_NAME_QUOTE_LEN + joint_length + *length +
+    SPIDER_SQL_AND_LEN))
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  sql.q_append(SPIDER_SQL_NAME_QUOTE_STR, SPIDER_SQL_NAME_QUOTE_LEN);
+  sql.q_append(joint_str, joint_length);
+  sql.q_append(source_str->ptr() + *row_pos, *length);
+  sql.q_append(SPIDER_SQL_AND_STR, SPIDER_SQL_AND_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_copy_table::copy_row(
+  Field *field,
+  SPIDER_DB_ROW *row
+) {
+  int error_num;
+  DBUG_ENTER("spider_oracle_copy_table::copy_row");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (row->is_null())
+  {
+    DBUG_PRINT("info",("spider column is null"));
+    if (current_str->reserve(SPIDER_SQL_NULL_LEN + SPIDER_SQL_COMMA_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    current_str->q_append(SPIDER_SQL_NULL_STR, SPIDER_SQL_NULL_LEN);
+  } else if (field->str_needs_quotes())
+  {
+    DBUG_PRINT("info",("spider str_needs_quotes"));
+    if (current_str->reserve(SPIDER_SQL_VALUE_QUOTE_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    current_str->q_append(SPIDER_SQL_VALUE_QUOTE_STR,
+      SPIDER_SQL_VALUE_QUOTE_LEN);
+    if ((error_num = row->append_escaped_to_str(current_str,
+      spider_dbton_oracle.dbton_id)))
+      DBUG_RETURN(error_num);
+    if (current_str->reserve(SPIDER_SQL_VALUE_QUOTE_LEN +
+      SPIDER_SQL_COMMA_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    current_str->q_append(SPIDER_SQL_VALUE_QUOTE_STR,
+      SPIDER_SQL_VALUE_QUOTE_LEN);
+  } else {
+    DBUG_PRINT("info",("spider without_quotes"));
+    if ((error_num = row->append_to_str(current_str)))
+      DBUG_RETURN(error_num);
+    if (current_str->reserve(SPIDER_SQL_COMMA_LEN))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  current_str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_copy_table::copy_rows(
+  TABLE *table,
+  SPIDER_DB_ROW *row,
+  ulong **last_row_pos,
+  ulong **last_lengths
+) {
+  int error_num;
+  Field **field;
+  ulong *lengths2, *row_pos2;
+  DBUG_ENTER("spider_oracle_copy_table::copy_rows");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!current_str)
+  {
+    if (!first_str)
+    {
+      if (!(first_str = new spider_string[1]))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      first_str->init_calc_mem(216);
+      first_str->set_charset(sql.charset());
+      if (first_str->reserve(sql.length()))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      first_str->q_append(sql.ptr(), sql.length());
+    } else {
+      first_str->length(sql.length());
+    }
+    current_str = first_str;
+  } else {
+    if (!current_str->next)
+    {
+      if (!(current_str->next = new spider_string[1]))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      current_str->next->init_calc_mem(217);
+      current_str->next->set_charset(sql.charset());
+      if (current_str->next->reserve(sql.length()))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      current_str->next->q_append(sql.ptr(), sql.length());
+    } else {
+      current_str->next->length(sql.length());
+    }
+    current_str = current_str->next;
+  }
+  row_pos2 = *last_row_pos;
+  lengths2 = *last_lengths;
+
+  for (
+    field = table->field;
+    *field;
+    field++,
+    lengths2++
+  ) {
+    *row_pos2 = current_str->length();
+    if ((error_num =
+      copy_row(*field, row)))
+      DBUG_RETURN(error_num);
+    *lengths2 = current_str->length() - *row_pos2 - SPIDER_SQL_COMMA_LEN;
+    row->next();
+    row_pos2++;
+  }
+  current_str->length(current_str->length() - SPIDER_SQL_COMMA_LEN);
+  if (current_str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  current_str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+    SPIDER_SQL_CLOSE_PAREN_LEN);
+  DBUG_PRINT("info",("spider current_str=%s", current_str->c_ptr_safe()));
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_copy_table::copy_rows(
+  TABLE *table,
+  SPIDER_DB_ROW *row
+) {
+  int error_num;
+  Field **field;
+  DBUG_ENTER("spider_oracle_copy_table::copy_rows");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!current_str)
+  {
+    if (!first_str)
+    {
+      if (!(first_str = new spider_string[1]))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      first_str->init_calc_mem(218);
+      first_str->set_charset(sql.charset());
+      if (first_str->reserve(sql.length()))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      first_str->q_append(sql.ptr(), sql.length());
+    } else {
+      first_str->length(sql.length());
+    }
+    current_str = first_str;
+  } else {
+    if (!current_str->next)
+    {
+      if (!(current_str->next = new spider_string[1]))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      current_str->next->init_calc_mem(219);
+      current_str->next->set_charset(sql.charset());
+      if (current_str->next->reserve(sql.length()))
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      current_str->next->q_append(sql.ptr(), sql.length());
+    } else {
+      current_str->next->length(sql.length());
+    }
+    current_str = current_str->next;
+  }
+
+  for (
+    field = table->field;
+    *field;
+    field++
+  ) {
+    if ((error_num =
+      copy_row(*field, row)))
+      DBUG_RETURN(error_num);
+    row->next();
+  }
+  current_str->length(current_str->length() - SPIDER_SQL_COMMA_LEN);
+  if (current_str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  current_str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+    SPIDER_SQL_CLOSE_PAREN_LEN);
+  DBUG_PRINT("info",("spider current_str=%s", current_str->c_ptr_safe()));
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_copy_table::append_insert_terminator()
+{
+  DBUG_ENTER("spider_oracle_copy_table::append_insert_terminator");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(0);
+}
+
+int spider_oracle_copy_table::copy_insert_values(
+  spider_db_copy_table *source_ct
+) {
+  spider_oracle_copy_table *tmp_ct = (spider_oracle_copy_table *) source_ct;
+  spider_string *source_str = &tmp_ct->sql;
+  int values_length = source_str->length() - tmp_ct->pos;
+  const char *values_ptr = source_str->ptr() + tmp_ct->pos;
+  DBUG_ENTER("spider_oracle_copy_table::copy_insert_values");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (sql.reserve(values_length))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  sql.q_append(values_ptr, values_length);
+  DBUG_RETURN(0);
+}
+#endif
diff --git a/storage/spider/spd_db_oracle.h b/storage/spider/spd_db_oracle.h
new file mode 100644
index 00000000..c8c15225
--- /dev/null
+++ b/storage/spider/spd_db_oracle.h
@@ -0,0 +1,1635 @@
+/* Copyright (C) 2012-2018 Kentoku Shiba
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+class spider_db_oracle;
+class spider_db_oracle_result;
+
+class spider_db_oracle_util: public spider_db_util
+{
+public:
+  spider_db_oracle_util();
+  ~spider_db_oracle_util();
+  int append_name(
+    spider_string *str,
+    const char *name,
+    uint name_length
+  );
+  int append_name_with_charset(
+    spider_string *str,
+    const char *name,
+    uint name_length,
+    CHARSET_INFO *name_charset
+  );
+  int append_escaped_name(
+    spider_string *str,
+    const char *name,
+    uint name_length
+  );
+  int append_escaped_name_with_charset(
+    spider_string *str,
+    const char *name,
+    uint name_length,
+    CHARSET_INFO *name_charset
+  );
+  bool is_name_quote(
+    const char head_code
+  );
+  int append_escaped_name_quote(
+    spider_string *str
+  );
+  int append_column_value(
+    ha_spider *spider,
+    spider_string *str,
+    Field *field,
+    const uchar *new_ptr,
+    CHARSET_INFO *access_charset
+  );
+  int append_from_with_alias(
+    spider_string *str,
+    const char **table_names,
+    uint *table_name_lengths,
+    const char **table_aliases,
+    uint *table_alias_lengths,
+    uint table_count,
+    int *table_name_pos,
+    bool over_write
+  );
+  int append_trx_isolation(
+    spider_string *str,
+    int trx_isolation
+  );
+  int append_autocommit(
+    spider_string *str,
+    bool autocommit
+  );
+  int append_sql_log_off(
+    spider_string *str,
+    bool sql_log_off
+  );
+  int append_wait_timeout(
+    spider_string *str,
+    int wait_timeout
+  );
+  int append_sql_mode(
+    spider_string *str,
+    sql_mode_t sql_mode
+  );
+  int append_time_zone(
+    spider_string *str,
+    Time_zone *time_zone
+  );
+  int append_start_transaction(
+    spider_string *str
+  );
+  int append_xa_start(
+    spider_string *str,
+    XID *xid
+  );
+  int append_lock_table_head(
+    spider_string *str
+  );
+  int append_lock_table_body(
+    spider_string *str,
+    const char *db_name,
+    uint db_name_length,
+    CHARSET_INFO *db_name_charset,
+    const char *table_name,
+    uint table_name_length,
+    CHARSET_INFO *table_name_charset,
+    int lock_type
+  );
+  int append_lock_table_tail(
+    spider_string *str
+  );
+  int append_unlock_table(
+    spider_string *str
+  );
+  int open_item_func(
+    Item_func *item_func,
+    ha_spider *spider,
+    spider_string *str,
+    const char *alias,
+    uint alias_length,
+    bool use_fields,
+    spider_fields *fields
+  );
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  int open_item_sum_func(
+    Item_sum *item_sum,
+    ha_spider *spider,
+    spider_string *str,
+    const char *alias,
+    uint alias_length,
+    bool use_fields,
+    spider_fields *fields
+  );
+#endif
+  size_t escape_string(
+    char *to,
+    const char *from,
+    size_t from_length,
+    CHARSET_INFO *access_charset
+  );
+  int append_escaped_util(
+    spider_string *to,
+    String *from
+  );
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+  int append_from_and_tables(
+    ha_spider *spider,
+    spider_fields *fields,
+    spider_string *str,
+    TABLE_LIST *table_list,
+    uint table_count
+  );
+  int reappend_tables(
+    spider_fields *fields,
+    SPIDER_LINK_IDX_CHAIN *link_idx_chain,
+    spider_string *str
+  );
+  int append_where(
+    spider_string *str
+  );
+  int append_having(
+    spider_string *str
+  );
+#endif
+};
+
+class spider_db_oracle_row: public spider_db_row
+{
+public:
+  spider_db_oracle        *db_conn;
+  spider_db_oracle_result *result;
+  sb2                     *ind;
+  char                    **val;
+  ub2                     *rlen;
+  sb2                     *ind_first;
+  char                    **val_first;
+  ub2                     *rlen_first;
+  spider_string           *val_str;
+  spider_string           *val_str_first;
+  OCIDefine               **defnp;
+  OCILobLocator           **lobhp;
+  OCIParam                **colhp;
+  ub2                     *coltp;
+  ub2                     *colsz;
+  uint                    field_count;
+  uint                    record_size;
+  ulong                   *row_size;
+  ulong                   *row_size_first;
+  CHARSET_INFO            *access_charset;
+  bool                    cloned;
+  spider_db_oracle_util   util;
+
+  spider_db_oracle_row();
+  ~spider_db_oracle_row();
+  int store_to_field(
+    Field *field,
+    CHARSET_INFO *access_charset
+  );
+  int append_to_str(
+    spider_string *str
+  );
+  int append_escaped_to_str(
+    spider_string *str,
+    uint dbton_id
+  );
+  void first();
+  void next();
+  bool is_null();
+  int val_int();
+  double val_real();
+  my_decimal *val_decimal(
+    my_decimal *decimal_value,
+    CHARSET_INFO *access_charset
+  );
+  SPIDER_DB_ROW *clone();
+  int store_to_tmp_table(
+    TABLE *tmp_table,
+    spider_string *str
+  );
+  uint get_byte_size();
+  /* for oracle */
+  int init();
+  void deinit();
+  int define();
+  int fetch();
+};
+
+class spider_db_oracle_result: public spider_db_result
+{
+public:
+  spider_db_oracle *db_conn;
+  OCIStmt          *stmtp;
+  uint             field_count;
+  CHARSET_INFO     *access_charset;
+  bool             fetched;
+  spider_db_oracle_row row;
+  int              store_error_num;
+
+  spider_db_oracle_result(SPIDER_DB_CONN *in_db_conn);
+  ~spider_db_oracle_result();
+  bool has_result();
+  void free_result();
+  SPIDER_DB_ROW *current_row();
+  SPIDER_DB_ROW *fetch_row();
+  SPIDER_DB_ROW *fetch_row_from_result_buffer(
+    spider_db_result_buffer *spider_res_buf
+  );
+  SPIDER_DB_ROW *fetch_row_from_tmp_table(
+    TABLE *tmp_table
+  );
+  int fetch_table_status(
+    int mode,
+    ha_statistics &stat
+  );
+  int fetch_table_records(
+    int mode,
+    ha_rows &records
+  );
+  int fetch_table_cardinality(
+    int mode,
+    TABLE *table,
+    longlong *cardinality,
+    uchar *cardinality_upd,
+    int bitmap_size
+  );
+  int fetch_table_mon_status(
+    int &status
+  );
+  longlong num_rows();
+  uint num_fields();
+  void move_to_pos(
+    longlong pos
+  );
+  int get_errno();
+#ifdef SPIDER_HAS_DISCOVER_TABLE_STRUCTURE
+  int fetch_columns_for_discover_table_structure(
+    spider_string *str,
+    CHARSET_INFO *access_charset
+  );
+  int fetch_index_for_discover_table_structure(
+    spider_string *str,
+    CHARSET_INFO *access_charset
+  );
+  int fetch_table_for_discover_table_structure(
+    spider_string *str,
+    SPIDER_SHARE *spider_share,
+    CHARSET_INFO *access_charset
+  );
+#endif
+  /* for oracle */
+  int set_column_info();
+};
+
+class spider_db_oracle: public spider_db_conn
+{
+public:
+  OCIEnv     *envhp;
+  OCIError   *errhp;
+  OCIServer  *srvhp;
+  OCISvcCtx  *svchp;
+  OCISession *usrhp;
+  OCIStmt    *stmtp;
+  OCITrans   *txnhp;
+  spider_db_oracle_result *result;
+  int                     stored_error_num;
+  const char              *stored_error;
+  uint                    update_rows;
+  int                     table_lock_mode;
+  spider_string           *exec_lock_sql;
+  spider_db_oracle_util   util;
+  ulonglong      stored_last_insert_id;
+  HASH           lock_table_hash;
+  bool           lock_table_hash_inited;
+  uint           lock_table_hash_id;
+  const char     *lock_table_hash_func_name;
+  const char     *lock_table_hash_file_name;
+  ulong          lock_table_hash_line_no;
+  DYNAMIC_ARRAY  handler_open_array;
+  bool           handler_open_array_inited;
+  uint           handler_open_array_id;
+  const char     *handler_open_array_func_name;
+  const char     *handler_open_array_file_name;
+  ulong          handler_open_array_line_no;
+
+  /* for bg_connect */
+  char           stored_error_msg[MYSQL_ERRMSG_SIZE];
+  char           *tgt_host;
+  char           *tgt_username;
+  char           *tgt_password;
+  long           tgt_port;
+  char           *tgt_socket;
+  char           *server_name;
+  int            connect_retry_count;
+  longlong       connect_retry_interval;
+
+  spider_db_oracle(
+    SPIDER_CONN *conn
+  );
+  ~spider_db_oracle();
+  int init();
+  bool is_connected();
+  void bg_connect();
+  int connect(
+    char *tgt_host,
+    char *tgt_username,
+    char *tgt_password,
+    long tgt_port,
+    char *tgt_socket,
+    char *server_name,
+    int connect_retry_count,
+    longlong connect_retry_interval
+  );
+  int ping();
+  void bg_disconnect();
+  void disconnect();
+  int set_net_timeout();
+  int exec_query(
+    const char *query,
+    uint length,
+    int quick_mode
+  );
+  int get_errno();
+  const char *get_error();
+  bool is_server_gone_error(
+    int error_num
+  );
+  bool is_dup_entry_error(
+    int error_num
+  );
+  bool is_xa_nota_error(
+    int error_num
+  );
+  spider_db_result *store_result(
+    spider_db_result_buffer **spider_res_buf,
+    st_spider_db_request_key *request_key,
+    int *error_num
+  );
+  spider_db_result *use_result(
+    ha_spider *spider,
+    st_spider_db_request_key *request_key,
+    int *error_num
+  );
+  int next_result();
+  uint affected_rows();
+  uint matched_rows();
+  bool inserted_info(
+    spider_db_handler *handler,
+    ha_copy_info *copy_info
+  );
+  ulonglong last_insert_id();
+  int set_character_set(
+    const char *csname
+  );
+  int select_db(
+    const char *dbname
+  );
+  int consistent_snapshot(
+    int *need_mon
+  );
+  bool trx_start_in_bulk_sql();
+  int start_transaction(
+    int *need_mon
+  );
+  int commit(
+    int *need_mon
+  );
+  int rollback(
+    int *need_mon
+  );
+  bool xa_start_in_bulk_sql();
+  int xa_start(
+    XID *xid,
+    int *need_mon
+  );
+  int xa_end(
+    XID *xid,
+    int *need_mon
+  );
+  int xa_prepare(
+    XID *xid,
+    int *need_mon
+  );
+  int xa_commit(
+    XID *xid,
+    int *need_mon
+  );
+  int xa_rollback(
+    XID *xid,
+    int *need_mon
+  );
+  bool set_trx_isolation_in_bulk_sql();
+  int set_trx_isolation(
+    int trx_isolation,
+    int *need_mon
+  );
+  bool set_autocommit_in_bulk_sql();
+  int set_autocommit(
+    bool autocommit,
+    int *need_mon
+  );
+  bool set_sql_log_off_in_bulk_sql();
+  int set_sql_log_off(
+    bool sql_log_off,
+    int *need_mon
+  );
+  bool set_wait_timeout_in_bulk_sql();
+  int set_wait_timeout(
+    int wait_timeout,
+    int *need_mon
+  );
+  bool set_sql_mode_in_bulk_sql();
+  int set_sql_mode(
+    sql_mode_t sql_mode,
+    int *need_mon
+  );
+  bool set_time_zone_in_bulk_sql();
+  int set_time_zone(
+    Time_zone *time_zone,
+    int *need_mon
+  );
+  int show_master_status(
+    SPIDER_TRX *trx,
+    SPIDER_SHARE *share,
+    int all_link_idx,
+    int *need_mon,
+    TABLE *table,
+    spider_string *str,
+    int mode,
+    SPIDER_DB_RESULT **res1,
+    SPIDER_DB_RESULT **res2
+  );
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  int append_sql(
+    char *sql,
+    ulong sql_length,
+    st_spider_db_request_key *request_key
+  );
+  int append_open_handler(
+    uint handler_id,
+    const char *db_name,
+    const char *table_name,
+    const char *index_name,
+    const char *sql,
+    st_spider_db_request_key *request_key
+  );
+  int append_select(
+    uint handler_id,
+    spider_string *sql,
+    SPIDER_DB_HS_STRING_REF_BUFFER *keys,
+    int limit,
+    int skip,
+    st_spider_db_request_key *request_key
+  );
+  int append_insert(
+    uint handler_id,
+    SPIDER_DB_HS_STRING_REF_BUFFER *upds,
+    st_spider_db_request_key *request_key
+  );
+  int append_update(
+    uint handler_id,
+    spider_string *sql,
+    SPIDER_DB_HS_STRING_REF_BUFFER *keys,
+    SPIDER_DB_HS_STRING_REF_BUFFER *upds,
+    int limit,
+    int skip,
+    bool increment,
+    bool decrement,
+    st_spider_db_request_key *request_key
+  );
+  int append_delete(
+    uint handler_id,
+    spider_string *sql,
+    SPIDER_DB_HS_STRING_REF_BUFFER *keys,
+    int limit,
+    int skip,
+    st_spider_db_request_key *request_key
+  );
+  void reset_request_queue();
+#endif
+  size_t escape_string(
+    char *to,
+    const char *from,
+    size_t from_length
+  );
+  bool have_lock_table_list();
+  int append_lock_tables(
+    spider_string *str
+  );
+  int append_unlock_tables(
+    spider_string *str
+  );
+  uint get_lock_table_hash_count();
+  void reset_lock_table_hash();
+  uint get_opened_handler_count();
+  void reset_opened_handler();
+  void set_dup_key_idx(
+    ha_spider *spider,
+    int link_idx
+  );
+  bool cmp_request_key_to_snd(
+    st_spider_db_request_key *request_key
+  );
+private:
+  int set_error(
+    sword res,
+    dvoid *hndlp,
+    int error_num,
+    const char *error1,
+    const char *error2
+  );
+};
+
+class spider_oracle_share: public spider_db_share
+{
+public:
+  spider_string      *table_select;
+  int                table_select_pos;
+  spider_string      *key_select;
+  int                *key_select_pos;
+  spider_string      *key_hint;
+  spider_string      *show_table_status;
+  spider_string      *show_records;
+  spider_string      *show_autoinc;
+  spider_string      *show_last_insert_id;
+  spider_string      *show_index;
+  spider_string      *table_names_str;
+  spider_string      *db_names_str;
+  spider_string      *db_table_str;
+  spider_string      *nextval_str;
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  my_hash_value_type *db_table_str_hash_value;
+#endif
+  uint               table_nm_max_length;
+  uint               db_nm_max_length;
+  uint               nextval_max_length;
+  spider_string      *column_name_str;
+  bool               same_db_table_name;
+  int                first_all_link_idx;
+
+  spider_oracle_share(
+    st_spider_share *share
+  );
+  ~spider_oracle_share();
+  int init();
+  uint get_column_name_length(
+    uint field_index
+  );
+  int append_column_name(
+    spider_string *str,
+    uint field_index
+  );
+  int append_column_name_with_alias(
+    spider_string *str,
+    uint field_index,
+    const char *alias,
+    uint alias_length
+  );
+  int append_table_name(
+    spider_string *str,
+    int all_link_idx
+  );
+  int append_table_name_with_adjusting(
+    spider_string *str,
+    int all_link_idx
+  );
+  int append_from_with_adjusted_table_name(
+    spider_string *str,
+    int *table_name_pos
+  );
+  bool need_change_db_table_name();
+#ifdef SPIDER_HAS_DISCOVER_TABLE_STRUCTURE
+  int discover_table_structure(
+    SPIDER_TRX *trx,
+    SPIDER_SHARE *spider_share,
+    spider_string *str
+  );
+#endif
+private:
+  int create_table_names_str();
+  void free_table_names_str();
+  int create_column_name_str();
+  void free_column_name_str();
+  int convert_key_hint_str();
+  int append_show_table_status();
+  void free_show_table_status();
+  int append_show_records();
+  void free_show_records();
+  int append_show_autoinc();
+  void free_show_autoinc();
+  int append_show_last_insert_id();
+  void free_show_last_insert_id();
+  int append_show_index();
+  void free_show_index();
+  int append_table_select();
+  int append_key_select(
+    uint idx
+  );
+};
+
+class spider_oracle_handler: public spider_db_handler
+{
+  spider_string           sql;
+  spider_string           sql_part;
+  spider_string           sql_part2;
+  spider_string           ha_sql;
+  int                     where_pos;
+  int                     order_pos;
+  int                     limit_pos;
+public:
+  int                     table_name_pos;
+private:
+  int                     update_set_pos;
+  int                     ha_read_pos;
+  int                     ha_next_pos;
+  int                     ha_where_pos;
+  int                     ha_limit_pos;
+  int                     ha_table_name_pos;
+  uint                    ha_sql_handler_id;
+  spider_string           insert_sql;
+  int                     insert_pos;
+  int                     insert_table_name_pos;
+  int                     nextval_pos;
+  spider_string           update_sql;
+  TABLE                   *upd_tmp_tbl;
+  TMP_TABLE_PARAM         upd_tmp_tbl_prm;
+  spider_string           tmp_sql;
+  int                     tmp_sql_pos1; /* drop db nm pos at tmp_table_join */
+  int                     tmp_sql_pos2; /* create db nm pos at tmp_table_join */
+  int                     tmp_sql_pos3; /* insert db nm pos at tmp_table_join */
+  int                     tmp_sql_pos4; /* insert val pos at tmp_table_join */
+  int                     tmp_sql_pos5; /* end of drop tbl at tmp_table_join */
+  spider_string           dup_update_sql;
+  spider_string           *exec_sql;
+  spider_string           *exec_insert_sql;
+  spider_string           *exec_update_sql;
+  spider_string           *exec_tmp_sql;
+  spider_string           *exec_ha_sql;
+  spider_string           *exec_lock_sql;
+  int                     table_lock_mode;
+  bool                    reading_from_bulk_tmp_table;
+  bool                    filled_up;
+  bool                    select_rownum_appended;
+  bool                    update_rownum_appended;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  SPIDER_DB_HS_STRING_REF_BUFFER hs_upds;
+#endif
+  SPIDER_INT_HLD          *union_table_name_pos_first;
+  SPIDER_INT_HLD          *union_table_name_pos_current;
+public:
+  spider_oracle_share     *oracle_share;
+  SPIDER_LINK_FOR_HASH    *link_for_hash;
+  uchar                   *minimum_select_bitmap;
+  spider_oracle_handler(
+    ha_spider *spider,
+    spider_oracle_share *share
+  );
+  ~spider_oracle_handler();
+  int init();
+  int spider_oracle_handler::append_index_hint(
+    spider_string *str,
+    int link_idx,
+    ulong sql_type
+    );
+  int append_table_name_with_adjusting(
+    spider_string *str,
+    int link_idx,
+    ulong sql_type
+  );
+  int append_key_column_types(
+    const key_range *start_key,
+    spider_string *str
+  );
+  int append_key_join_columns_for_bka(
+    const key_range *start_key,
+    spider_string *str,
+    const char **table_aliases,
+    uint *table_alias_lengths
+  );
+  int append_tmp_table_and_sql_for_bka(
+    const key_range *start_key
+  );
+  int reuse_tmp_table_and_sql_for_bka();
+  void create_tmp_bka_table_name(
+    char *tmp_table_name,
+    int *tmp_table_name_length,
+    int link_idx
+  );
+  int append_create_tmp_bka_table(
+    const key_range *start_key,
+    spider_string *str,
+    char *tmp_table_name,
+    int tmp_table_name_length,
+    int *db_name_pos,
+    CHARSET_INFO *table_charset
+  );
+  int append_drop_tmp_bka_table(
+    spider_string *str,
+    char *tmp_table_name,
+    int tmp_table_name_length,
+    int *db_name_pos,
+    int *drop_table_end_pos,
+    bool with_semicolon
+  );
+  int append_insert_tmp_bka_table(
+    const key_range *start_key,
+    spider_string *str,
+    char *tmp_table_name,
+    int tmp_table_name_length,
+    int *db_name_pos
+  );
+  int append_union_table_and_sql_for_bka(
+    const key_range *start_key
+  );
+  int reuse_union_table_and_sql_for_bka();
+  int append_insert_for_recovery(
+    ulong sql_type,
+    int link_idx
+  );
+  int append_update(
+    const TABLE *table,
+    my_ptrdiff_t ptr_diff
+  );
+  int append_update(
+    const TABLE *table,
+    my_ptrdiff_t ptr_diff,
+    int link_idx
+  );
+  int append_delete(
+    const TABLE *table,
+    my_ptrdiff_t ptr_diff
+  );
+  int append_delete(
+    const TABLE *table,
+    my_ptrdiff_t ptr_diff,
+    int link_idx
+  );
+  int append_insert_part();
+  int append_insert(
+    spider_string *str,
+    int link_idx
+  );
+  int append_update_part();
+  int append_update(
+    spider_string *str,
+    int link_idx
+  );
+  int append_delete_part();
+  int append_delete(
+    spider_string *str
+  );
+  #if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  #ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  int append_increment_update_set_part();
+  int append_increment_update_set(
+    spider_string *str
+  );
+  #endif
+  #endif
+  int append_update_set_part();
+  int append_update_set(
+    spider_string *str
+  );
+  #ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  int append_direct_update_set_part();
+  int append_direct_update_set(
+    spider_string *str
+  );
+  int append_dup_update_pushdown_part(
+    const char *alias,
+    uint alias_length
+  );
+  int append_update_columns_part(
+    const char *alias,
+    uint alias_length
+  );
+  int check_update_columns_part();
+  int append_update_columns(
+    spider_string *str,
+    const char *alias,
+    uint alias_length
+  );
+  #endif
+  int append_select_part(
+    ulong sql_type
+  );
+  int append_select(
+    spider_string *str,
+    ulong sql_type
+  );
+  int append_table_select_part(
+    ulong sql_type
+  );
+  int append_table_select(
+    spider_string *str
+  );
+  int append_key_select_part(
+    ulong sql_type,
+    uint idx
+  );
+  int append_key_select(
+    spider_string *str,
+    uint idx
+  );
+  int append_minimum_select_part(
+    ulong sql_type
+  );
+  int append_minimum_select(
+    spider_string *str,
+    ulong sql_type
+  );
+  int append_table_select_with_alias(
+    spider_string *str,
+    const char *alias,
+    uint alias_length
+  );
+  int append_key_select_with_alias(
+    spider_string *str,
+    const KEY *key_info,
+    const char *alias,
+    uint alias_length
+  );
+  int append_minimum_select_with_alias(
+    spider_string *str,
+    const char *alias,
+    uint alias_length
+  );
+  int append_select_columns_with_alias(
+    spider_string *str,
+    const char *alias,
+    uint alias_length
+  );
+  int append_hint_after_table_part(
+    ulong sql_type
+  );
+  int append_hint_after_table(
+    spider_string *str
+  );
+  void set_where_pos(
+    ulong sql_type
+  );
+  void set_where_to_pos(
+    ulong sql_type
+  );
+  int check_item_type(
+    Item *item
+  );
+  int append_values_connector_part(
+    ulong sql_type
+  );
+  int append_values_connector(
+    spider_string *str
+  );
+  int append_values_terminator_part(
+    ulong sql_type
+  );
+  int append_values_terminator(
+    spider_string *str
+  );
+  int append_union_table_connector_part(
+    ulong sql_type
+  );
+  int append_union_table_connector(
+    spider_string *str
+  );
+  int append_union_table_terminator_part(
+    ulong sql_type
+  );
+  int append_union_table_terminator(
+    spider_string *str
+  );
+  int append_key_column_values_part(
+    const key_range *start_key,
+    ulong sql_type
+  );
+  int append_key_column_values(
+    spider_string *str,
+    const key_range *start_key
+  );
+  int append_key_column_values_with_name_part(
+    const key_range *start_key,
+    ulong sql_type
+  );
+  int append_key_column_values_with_name(
+    spider_string *str,
+    const key_range *start_key
+  );
+  int append_key_where_part(
+    const key_range *start_key,
+    const key_range *end_key,
+    ulong sql_type
+  );
+  int append_key_where(
+    spider_string *str,
+    spider_string *str_part,
+    spider_string *str_part2,
+    const key_range *start_key,
+    const key_range *end_key,
+    ulong sql_type,
+    bool set_order
+  );
+  int append_is_null_part(
+    ulong sql_type,
+    KEY_PART_INFO *key_part,
+    const key_range *key,
+    const uchar **ptr,
+    bool key_eq,
+    bool tgt_final
+  );
+  int append_is_null(
+    ulong sql_type,
+    spider_string *str,
+    spider_string *str_part,
+    spider_string *str_part2,
+    KEY_PART_INFO *key_part,
+    const key_range *key,
+    const uchar **ptr,
+    bool key_eq,
+    bool tgt_final
+  );
+  int append_where_terminator_part(
+    ulong sql_type,
+    bool set_order,
+    int key_count
+  );
+  int append_where_terminator(
+    ulong sql_type,
+    spider_string *str,
+    spider_string *str_part,
+    spider_string *str_part2,
+    bool set_order,
+    int key_count
+  );
+  int append_match_where_part(
+    ulong sql_type
+  );
+  int append_match_where(
+    spider_string *str
+  );
+  int append_update_where(
+    spider_string *str,
+    const TABLE *table,
+    my_ptrdiff_t ptr_diff
+  );
+  int append_condition_part(
+    const char *alias,
+    uint alias_length,
+    ulong sql_type,
+    bool test_flg
+  );
+  int append_condition(
+    spider_string *str,
+    const char *alias,
+    uint alias_length,
+    bool start_where,
+    ulong sql_type
+  );
+  int append_match_against_part(
+    ulong sql_type,
+    st_spider_ft_info *ft_info,
+    const char *alias,
+    uint alias_length
+  );
+  int append_match_against(
+    spider_string *str,
+    st_spider_ft_info  *ft_info,
+    const char *alias,
+    uint alias_length
+  );
+  int append_match_select_part(
+    ulong sql_type,
+    const char *alias,
+    uint alias_length
+  );
+  int append_match_select(
+    spider_string *str,
+    const char *alias,
+    uint alias_length
+  );
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  int append_sum_select_part(
+    ulong sql_type,
+    const char *alias,
+    uint alias_length
+  );
+  int append_sum_select(
+    spider_string *str,
+    const char *alias,
+    uint alias_length
+  );
+#endif
+  void set_order_pos(
+    ulong sql_type
+  );
+  void set_order_to_pos(
+    ulong sql_type
+  );
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+  int append_group_by_part(
+    const char *alias,
+    uint alias_length,
+    ulong sql_type
+  );
+  int append_group_by(
+    spider_string *str,
+    const char *alias,
+    uint alias_length
+  );
+#endif
+  int append_key_order_for_merge_with_alias_part(
+    const char *alias,
+    uint alias_length,
+    ulong sql_type
+  );
+  int append_key_order_for_merge_with_alias(
+    spider_string *str,
+    const char *alias,
+    uint alias_length
+  );
+  int append_key_order_for_direct_order_limit_with_alias_part(
+    const char *alias,
+    uint alias_length,
+    ulong sql_type
+  );
+  int append_key_order_for_direct_order_limit_with_alias(
+    spider_string *str,
+    const char *alias,
+    uint alias_length
+  );
+  int append_key_order_with_alias_part(
+    const char *alias,
+    uint alias_length,
+    ulong sql_type
+  );
+  int append_key_order_for_handler(
+    spider_string *str,
+    const char *alias,
+    uint alias_length
+  );
+  int append_key_order_with_alias(
+    spider_string *str,
+    const char *alias,
+    uint alias_length
+  );
+  int append_limit_part(
+    longlong offset,
+    longlong limit,
+    ulong sql_type
+  );
+  int reappend_limit_part(
+    longlong offset,
+    longlong limit,
+    ulong sql_type
+  );
+  int append_limit(
+    spider_string *str,
+    longlong offset,
+    longlong limit
+  );
+  int append_select_lock_part(
+    ulong sql_type
+  );
+  int append_select_lock(
+    spider_string *str
+  );
+  int append_union_all_start_part(
+    ulong sql_type
+  );
+  int append_union_all_start(
+    spider_string *str
+  );
+  int append_union_all_part(
+    ulong sql_type
+  );
+  int append_union_all(
+    spider_string *str
+  );
+  int append_union_all_end_part(
+    ulong sql_type
+  );
+  int append_union_all_end(
+    spider_string *str
+  );
+  int append_multi_range_cnt_part(
+    ulong sql_type,
+    uint multi_range_cnt,
+    bool with_comma
+  );
+  int append_multi_range_cnt(
+    spider_string *str,
+    uint multi_range_cnt,
+    bool with_comma
+  );
+  int append_multi_range_cnt_with_name_part(
+    ulong sql_type,
+    uint multi_range_cnt
+  );
+  int append_multi_range_cnt_with_name(
+    spider_string *str,
+    uint multi_range_cnt
+  );
+  int append_open_handler_part(
+    ulong sql_type,
+    uint handler_id,
+    SPIDER_CONN *conn,
+    int link_idx
+  );
+  int append_open_handler(
+    spider_string *str,
+    uint handler_id,
+    SPIDER_CONN *conn,
+    int link_idx
+  );
+  int append_close_handler_part(
+    ulong sql_type,
+    int link_idx
+  );
+  int append_close_handler(
+    spider_string *str,
+    int link_idx
+  );
+  int append_insert_terminator_part(
+    ulong sql_type
+  );
+  int append_insert_terminator(
+    spider_string *str
+  );
+  int append_insert_values_part(
+    ulong sql_type
+  );
+  int append_insert_values(
+    spider_string *str
+  );
+  int append_into_part(
+    ulong sql_type
+  );
+  int append_into(
+    spider_string *str
+  );
+  void set_insert_to_pos(
+    ulong sql_type
+  );
+  int append_from_part(
+    ulong sql_type,
+    int link_idx
+  );
+  int append_from(
+    spider_string *str,
+    ulong sql_type,
+    int link_idx
+  );
+  int append_flush_tables_part(
+    ulong sql_type,
+    int link_idx,
+    bool lock
+  );
+  int append_flush_tables(
+    spider_string *str,
+    int link_idx,
+    bool lock
+  );
+  int append_optimize_table_part(
+    ulong sql_type,
+    int link_idx
+  );
+  int append_optimize_table(
+    spider_string *str,
+    int link_idx
+  );
+  int append_analyze_table_part(
+    ulong sql_type,
+    int link_idx
+  );
+  int append_analyze_table(
+    spider_string *str,
+    int link_idx
+  );
+  int append_repair_table_part(
+    ulong sql_type,
+    int link_idx,
+    HA_CHECK_OPT* check_opt
+  );
+  int append_repair_table(
+    spider_string *str,
+    int link_idx,
+    HA_CHECK_OPT* check_opt
+  );
+  int append_check_table_part(
+    ulong sql_type,
+    int link_idx,
+    HA_CHECK_OPT* check_opt
+  );
+  int append_check_table(
+    spider_string *str,
+    int link_idx,
+    HA_CHECK_OPT* check_opt
+  );
+  int append_enable_keys_part(
+    ulong sql_type,
+    int link_idx
+  );
+  int append_enable_keys(
+    spider_string *str,
+    int link_idx
+  );
+  int append_disable_keys_part(
+    ulong sql_type,
+    int link_idx
+  );
+  int append_disable_keys(
+    spider_string *str,
+    int link_idx
+  );
+  int append_delete_all_rows_part(
+    ulong sql_type
+  );
+  int append_delete_all_rows(
+    spider_string *str,
+    ulong sql_type
+  );
+  int append_truncate(
+    spider_string *str,
+    ulong sql_type,
+    int link_idx
+  );
+  int append_explain_select_part(
+    const key_range *start_key,
+    const key_range *end_key,
+    ulong sql_type,
+    int link_idx
+  );
+  int append_explain_select(
+    spider_string *str,
+    const key_range *start_key,
+    const key_range *end_key,
+    ulong sql_type,
+    int link_idx
+  );
+  bool is_sole_projection_field(
+    uint16 field_index
+  );
+  bool is_bulk_insert_exec_period(
+    bool bulk_end
+  );
+  bool sql_is_filled_up(
+    ulong sql_type
+  );
+  bool sql_is_empty(
+    ulong sql_type
+  );
+  bool support_multi_split_read();
+  bool support_bulk_update();
+  int bulk_tmp_table_insert();
+  int bulk_tmp_table_insert(
+    int link_idx
+  );
+  int bulk_tmp_table_end_bulk_insert();
+  int bulk_tmp_table_rnd_init();
+  int bulk_tmp_table_rnd_next();
+  int bulk_tmp_table_rnd_end();
+  bool need_copy_for_update(
+    int link_idx
+  );
+  bool bulk_tmp_table_created();
+  int mk_bulk_tmp_table_and_bulk_start();
+  void rm_bulk_tmp_table();
+  int store_sql_to_bulk_tmp_table(
+    spider_string *str,
+    TABLE *tmp_table
+  );
+  int restore_sql_from_bulk_tmp_table(
+    spider_string *str,
+    TABLE *tmp_table
+  );
+  int insert_lock_tables_list(
+    SPIDER_CONN *conn,
+    int link_idx
+  );
+  int append_lock_tables_list(
+    SPIDER_CONN *conn,
+    int link_idx,
+    int *appended
+  );
+  int realloc_sql(
+    ulong *realloced
+  );
+  int reset_sql(
+    ulong sql_type
+  );
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  int reset_keys(
+    ulong sql_type
+  );
+  int reset_upds(
+    ulong sql_type
+  );
+  int reset_strs(
+    ulong sql_type
+  );
+  int reset_strs_pos(
+    ulong sql_type
+  );
+  int push_back_upds(
+    SPIDER_HS_STRING_REF &info
+  );
+#endif
+  bool need_lock_before_set_sql_for_exec(
+    ulong sql_type
+  );
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+  int set_sql_for_exec(
+    ulong sql_type,
+    int link_idx,
+    SPIDER_LINK_IDX_CHAIN *link_idx_chain
+  );
+#endif
+  int set_sql_for_exec(
+    ulong sql_type,
+    int link_idx
+  );
+  int set_sql_for_exec(
+    spider_db_copy_table *tgt_ct,
+    ulong sql_type
+  );
+  int execute_sql(
+    ulong sql_type,
+    SPIDER_CONN *conn,
+    int quick_mode,
+    int *need_mon
+  );
+  int reset();
+  int sts_mode_exchange(
+    int sts_mode
+  );
+  int show_table_status(
+    int link_idx,
+    int sts_mode,
+    uint flag
+  );
+  int crd_mode_exchange(
+    int crd_mode
+  );
+  int show_index(
+    int link_idx,
+    int crd_mode
+  );
+  int show_records(
+    int link_idx
+  );
+  int show_autoinc(
+    int link_idx
+  );
+  int show_last_insert_id(
+    int link_idx,
+    ulonglong &last_insert_id
+  );
+  ha_rows explain_select(
+    const key_range *start_key,
+    const key_range *end_key,
+    int link_idx
+  );
+  int lock_tables(
+    int link_idx
+  );
+  int unlock_tables(
+    int link_idx
+  );
+  int disable_keys(
+    SPIDER_CONN *conn,
+    int link_idx
+  );
+  int enable_keys(
+    SPIDER_CONN *conn,
+    int link_idx
+  );
+  int check_table(
+    SPIDER_CONN *conn,
+    int link_idx,
+    HA_CHECK_OPT* check_opt
+  );
+  int repair_table(
+    SPIDER_CONN *conn,
+    int link_idx,
+    HA_CHECK_OPT* check_opt
+  );
+  int analyze_table(
+    SPIDER_CONN *conn,
+    int link_idx
+  );
+  int optimize_table(
+    SPIDER_CONN *conn,
+    int link_idx
+  );
+  int flush_tables(
+    SPIDER_CONN *conn,
+    int link_idx,
+    bool lock
+  );
+  int flush_logs(
+    SPIDER_CONN *conn,
+    int link_idx
+  );
+  int insert_opened_handler(
+    SPIDER_CONN *conn,
+    int link_idx
+  );
+  int delete_opened_handler(
+    SPIDER_CONN *conn,
+    int link_idx
+  );
+  int sync_from_clone_source(
+    spider_db_handler *dbton_hdl
+  );
+  bool support_use_handler(
+    int use_handler
+  );
+  void minimum_select_bitmap_create();
+  bool minimum_select_bit_is_set(
+    uint field_index
+  );
+  void copy_minimum_select_bitmap(
+    uchar *bitmap
+  );
+  int init_union_table_name_pos();
+  int set_union_table_name_pos();
+  int reset_union_table_name(
+    spider_string *str,
+    int link_idx,
+    ulong sql_type
+  );
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+  int append_from_and_tables_part(
+    spider_fields *fields,
+    ulong sql_type
+  );
+  int reappend_tables_part(
+    spider_fields *fields,
+    ulong sql_type
+  );
+  int append_where_part(
+    ulong sql_type
+  );
+  int append_having_part(
+    ulong sql_type
+  );
+  int append_item_type_part(
+    Item *item,
+    const char *alias,
+    uint alias_length,
+    bool use_fields,
+    spider_fields *fields,
+    ulong sql_type
+  );
+  int append_list_item_select_part(
+    List<Item> *select,
+    const char *alias,
+    uint alias_length,
+    bool use_fields,
+    spider_fields *fields,
+    ulong sql_type
+  );
+  int append_list_item_select(
+    List<Item> *select,
+    spider_string *str,
+    const char *alias,
+    uint alias_length,
+    bool use_fields,
+    spider_fields *fields
+  );
+  int append_group_by_part(
+    ORDER *order,
+    const char *alias,
+    uint alias_length,
+    bool use_fields,
+    spider_fields *fields,
+    ulong sql_type
+  );
+  int append_group_by(
+    ORDER *order,
+    spider_string *str,
+    const char *alias,
+    uint alias_length,
+    bool use_fields,
+    spider_fields *fields
+  );
+  int append_order_by_part(
+    ORDER *order,
+    const char *alias,
+    uint alias_length,
+    bool use_fields,
+    spider_fields *fields,
+    ulong sql_type
+  );
+  int append_order_by(
+    ORDER *order,
+    spider_string *str,
+    const char *alias,
+    uint alias_length,
+    bool use_fields,
+    spider_fields *fields
+  );
+#endif
+};
+
+class spider_oracle_copy_table: public spider_db_copy_table
+{
+public:
+  spider_oracle_share     *oracle_share;
+  spider_string           sql;
+  spider_string           sql_part;
+  uint                    pos;
+  uint                    table_name_pos;
+  uint                    pos_diff;
+  int                     table_lock_mode;
+  int                     store_link_idx;
+  bool                    select_rownum_appended;
+  spider_string           *first_str;
+  spider_string           *current_str;
+  spider_oracle_copy_table(
+    spider_oracle_share *db_share
+  );
+  ~spider_oracle_copy_table();
+  int init();
+  void set_sql_charset(
+    CHARSET_INFO *cs
+  );
+  int append_select_str();
+  int append_insert_str(
+    int insert_flg
+  );
+  int append_table_columns(
+    TABLE_SHARE *table_share
+  );
+  int append_from_str();
+  int append_table_name(
+    int link_idx
+  );
+  void set_sql_pos();
+  void set_sql_to_pos();
+  int append_copy_where(
+    spider_db_copy_table *source_ct,
+    KEY *key_info,
+    ulong *last_row_pos,
+    ulong *last_lengths
+  );
+  int append_key_order_str(
+    KEY *key_info,
+    int start_pos,
+    bool desc_flg
+  );
+  int append_limit(
+    longlong offset,
+    longlong limit
+  );
+  int append_into_str();
+  int append_open_paren_str();
+  int append_values_str();
+  int append_select_lock_str(
+    int lock_mode
+  );
+  int exec_query(
+    SPIDER_CONN *conn,
+    int quick_mode,
+    int *need_mon
+  );
+  int copy_key_row(
+    spider_db_copy_table *source_ct,
+    Field *field,
+    ulong *row_pos,
+    ulong *length,
+    const char *joint_str,
+    const int joint_length
+  );
+  int copy_row(
+    Field *field,
+    SPIDER_DB_ROW *row
+  );
+  int copy_rows(
+    TABLE *table,
+    SPIDER_DB_ROW *row,
+    ulong **last_row_pos,
+    ulong **last_lengths
+  );
+  int copy_rows(
+    TABLE *table,
+    SPIDER_DB_ROW *row
+  );
+  int append_insert_terminator();
+  int copy_insert_values(
+    spider_db_copy_table *source_ct
+  );
+};
diff --git a/storage/spider/spd_direct_sql.cc b/storage/spider/spd_direct_sql.cc
new file mode 100644
index 00000000..1486cbec
--- /dev/null
+++ b/storage/spider/spd_direct_sql.cc
@@ -0,0 +1,2147 @@
+/* Copyright (C) 2009-2020 Kentoku Shiba
+   Copyright (C) 2019-2020 MariaDB corp
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+#define MYSQL_SERVER 1
+#include <my_global.h>
+#include "mysql_version.h"
+#include "spd_environ.h"
+#if MYSQL_VERSION_ID < 50500
+#include "mysql_priv.h"
+#include <mysql/plugin.h>
+#else
+#include "sql_priv.h"
+#include "probes_mysql.h"
+#include "sql_class.h"
+#include "sql_partition.h"
+#include "sql_base.h"
+#include "sql_servers.h"
+#include "tztime.h"
+#endif
+#include "spd_err.h"
+#include "spd_param.h"
+#include "spd_db_include.h"
+#include "spd_include.h"
+#include "spd_sys_table.h"
+#include "ha_spider.h"
+#include "spd_db_conn.h"
+#include "spd_trx.h"
+#include "spd_conn.h"
+#include "spd_table.h"
+#include "spd_direct_sql.h"
+#include "spd_udf.h"
+#include "spd_malloc.h"
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100004
+#define SPIDER_NEED_INIT_ONE_TABLE_FOR_FIND_TEMPORARY_TABLE
+#endif
+
+extern const char **spd_defaults_extra_file;
+extern const char **spd_defaults_file;
+
+extern handlerton *spider_hton_ptr;
+extern SPIDER_DBTON spider_dbton[SPIDER_DBTON_SIZE];
+
+#ifdef HAVE_PSI_INTERFACE
+extern PSI_mutex_key spd_key_mutex_mta_conn;
+extern PSI_mutex_key spd_key_mutex_bg_direct_sql;
+extern PSI_cond_key spd_key_cond_bg_direct_sql;
+#endif
+
+extern HASH spider_open_connections;
+extern HASH spider_ipport_conns;
+extern pthread_mutex_t spider_conn_mutex;
+extern pthread_mutex_t spider_conn_id_mutex;
+extern pthread_mutex_t spider_ipport_conn_mutex;
+extern ulonglong spider_conn_id;
+
+/* UTC time zone for timestamp columns */
+extern Time_zone *UTC;
+
+uint spider_udf_calc_hash(
+  char *key,
+  uint mod
+) {
+  uint sum = 0;
+  DBUG_ENTER("spider_udf_calc_hash");
+  while (*key != '\0')
+  {
+    sum += *key;
+    key++;
+  }
+  DBUG_PRINT("info",("spider calc hash = %u", sum % mod));
+  DBUG_RETURN(sum % mod);
+}
+
+int spider_udf_direct_sql_create_table_list(
+  SPIDER_DIRECT_SQL *direct_sql,
+  char *table_name_list,
+  uint table_name_list_length
+) {
+  int table_count, roop_count, length;
+  char *tmp_ptr, *tmp_ptr2, *tmp_ptr3, *tmp_name_ptr;
+  THD *thd = direct_sql->trx->thd;
+  DBUG_ENTER("spider_udf_direct_sql_create_table_list");
+  tmp_ptr = table_name_list;
+  while (*tmp_ptr == ' ')
+    tmp_ptr++;
+  if (*tmp_ptr)
+    table_count = 1;
+  else {
+    direct_sql->table_count = 0;
+    DBUG_RETURN(0);
+  }
+
+  while (TRUE)
+  {
+    if ((tmp_ptr2 = strchr(tmp_ptr, ' ')))
+    {
+      table_count++;
+      tmp_ptr = tmp_ptr2 + 1;
+      while (*tmp_ptr == ' ')
+        tmp_ptr++;
+    } else
+      break;
+  }
+#if MYSQL_VERSION_ID < 50500
+  if (!(direct_sql->db_names = (char**)
+    spider_bulk_malloc(spider_current_trx, 31, MYF(MY_WME | MY_ZEROFILL),
+      &direct_sql->db_names, (uint) (sizeof(char*) * table_count),
+      &direct_sql->table_names, (uint) (sizeof(char*) * table_count),
+      &direct_sql->tables, (uint) (sizeof(TABLE*) * table_count),
+      &tmp_name_ptr, (uint) (sizeof(char) * (
+        table_name_list_length +
+        thd->db_length * table_count +
+        2 * table_count
+      )),
+      &direct_sql->iop, (uint) (sizeof(int) * table_count),
+      NullS))
+  )
+#else
+  if (!(direct_sql->db_names = (char**)
+    spider_bulk_malloc(spider_current_trx, 31, MYF(MY_WME | MY_ZEROFILL),
+      &direct_sql->db_names, (uint) (sizeof(char*) * table_count),
+      &direct_sql->table_names, (uint) (sizeof(char*) * table_count),
+      &direct_sql->tables, (uint) (sizeof(TABLE*) * table_count),
+      &tmp_name_ptr, (uint) (sizeof(char) * (
+        table_name_list_length +
+        SPIDER_THD_db_length(thd) * table_count +
+        2 * table_count
+      )),
+      &direct_sql->iop, (uint) (sizeof(int) * table_count),
+      &direct_sql->table_list, (uint) (sizeof(TABLE_LIST) * table_count),
+      &direct_sql->real_table_bitmap,
+        (uint) (sizeof(uchar) * ((table_count + 7) / 8)),
+      NullS))
+  )
+#endif
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+
+  tmp_ptr = table_name_list;
+  while (*tmp_ptr == ' ')
+    tmp_ptr++;
+  roop_count = 0;
+  while (TRUE)
+  {
+    if ((tmp_ptr2 = strchr(tmp_ptr, ' ')))
+      *tmp_ptr2 = '\0';
+
+    direct_sql->db_names[roop_count] = tmp_name_ptr;
+
+    if ((tmp_ptr3 = strchr(tmp_ptr, '.')))
+    {
+      /* exist database name */
+      *tmp_ptr3 = '\0';
+      length = strlen(tmp_ptr);
+      memcpy(tmp_name_ptr, tmp_ptr, length + 1);
+      tmp_name_ptr += length + 1;
+      tmp_ptr = tmp_ptr3 + 1;
+    } else {
+      if (SPIDER_THD_db_str(thd))
+      {
+        memcpy(tmp_name_ptr, SPIDER_THD_db_str(thd),
+          SPIDER_THD_db_length(thd) + 1);
+        tmp_name_ptr += SPIDER_THD_db_length(thd) + 1;
+      } else {
+        direct_sql->db_names[roop_count] = (char *) "";
+      }
+    }
+
+    direct_sql->table_names[roop_count] = tmp_name_ptr;
+    length = strlen(tmp_ptr);
+    memcpy(tmp_name_ptr, tmp_ptr, length + 1);
+    tmp_name_ptr += length + 1;
+
+    DBUG_PRINT("info",("spider db=%s",
+      direct_sql->db_names[roop_count]));
+    DBUG_PRINT("info",("spider table_name=%s",
+      direct_sql->table_names[roop_count]));
+
+    if (!tmp_ptr2)
+      break;
+    tmp_ptr = tmp_ptr2 + 1;
+    while (*tmp_ptr == ' ')
+      tmp_ptr++;
+    roop_count++;
+  }
+  direct_sql->table_count = table_count;
+  DBUG_RETURN(0);
+}
+
+int spider_udf_direct_sql_create_conn_key(
+  SPIDER_DIRECT_SQL *direct_sql
+) {
+  char *tmp_name, port_str[6];
+  DBUG_ENTER("spider_udf_direct_sql_create_conn_key");
+
+  uint roop_count2;
+  bool tables_on_different_db_are_joinable = TRUE;
+  direct_sql->dbton_id = SPIDER_DBTON_SIZE;
+  DBUG_PRINT("info",("spider direct_sql->tgt_wrapper=%s",
+    direct_sql->tgt_wrapper));
+  for (roop_count2 = 0; roop_count2 < SPIDER_DBTON_SIZE; roop_count2++)
+  {
+    DBUG_PRINT("info",("spider spider_dbton[%d].wrapper=%s", roop_count2,
+      spider_dbton[roop_count2].wrapper ?
+        spider_dbton[roop_count2].wrapper : "NULL"));
+    if (
+      spider_dbton[roop_count2].wrapper &&
+      !strcmp(direct_sql->tgt_wrapper, spider_dbton[roop_count2].wrapper)
+    ) {
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      if (direct_sql->access_mode == 0)
+      {
+#endif
+        if (spider_dbton[roop_count2].db_access_type ==
+          SPIDER_DB_ACCESS_TYPE_SQL)
+        {
+          direct_sql->dbton_id = roop_count2;
+          break;
+        }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      } else {
+        if (spider_dbton[roop_count2].db_access_type ==
+          SPIDER_DB_ACCESS_TYPE_NOSQL)
+        {
+          direct_sql->dbton_id = roop_count2;
+          break;
+        }
+      }
+#endif
+    }
+  }
+  if (direct_sql->dbton_id == SPIDER_DBTON_SIZE)
+  {
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    if (direct_sql->access_mode == 0)
+    {
+#endif
+      my_printf_error(
+        ER_SPIDER_SQL_WRAPPER_IS_INVALID_NUM,
+        ER_SPIDER_SQL_WRAPPER_IS_INVALID_STR,
+        MYF(0), direct_sql->tgt_wrapper);
+      DBUG_RETURN(ER_SPIDER_SQL_WRAPPER_IS_INVALID_NUM);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    } else {
+      my_printf_error(
+        ER_SPIDER_NOSQL_WRAPPER_IS_INVALID_NUM,
+        ER_SPIDER_NOSQL_WRAPPER_IS_INVALID_STR,
+        MYF(0), direct_sql->tgt_wrapper);
+      DBUG_RETURN(ER_SPIDER_NOSQL_WRAPPER_IS_INVALID_NUM);
+    }
+#endif
+  }
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (direct_sql->access_mode == 0)
+  {
+#endif
+    tables_on_different_db_are_joinable =
+      spider_dbton[direct_sql->dbton_id].db_util->
+        tables_on_different_db_are_joinable();
+    direct_sql->conn_key_length
+      = 1
+      + direct_sql->tgt_wrapper_length + 1
+      + direct_sql->tgt_host_length + 1
+      + 5 + 1
+      + direct_sql->tgt_socket_length + 1
+      + (tables_on_different_db_are_joinable ?
+        0 : direct_sql->tgt_default_db_name_length + 1)
+      + direct_sql->tgt_username_length + 1
+      + direct_sql->tgt_password_length + 1
+      + direct_sql->tgt_ssl_ca_length + 1
+      + direct_sql->tgt_ssl_capath_length + 1
+      + direct_sql->tgt_ssl_cert_length + 1
+      + direct_sql->tgt_ssl_cipher_length + 1
+      + direct_sql->tgt_ssl_key_length + 1
+      + 1 + 1
+      + direct_sql->tgt_default_file_length + 1
+      + direct_sql->tgt_default_group_length + 1
+      + direct_sql->tgt_dsn_length;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  } else {
+    direct_sql->conn_key_length
+      = 1
+      + direct_sql->tgt_wrapper_length + 1
+      + direct_sql->tgt_host_length + 1
+      + 5 + 1
+      + direct_sql->tgt_socket_length;
+  }
+#endif
+  if (!(direct_sql->conn_key = (char *)
+    spider_malloc(spider_current_trx, 9, direct_sql->conn_key_length + 1,
+      MYF(MY_WME | MY_ZEROFILL)))
+  )
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  if (direct_sql->connection_channel > 48)
+    *direct_sql->conn_key = '0' + 48 - direct_sql->connection_channel;
+  else
+    *direct_sql->conn_key = '0' + direct_sql->connection_channel;
+  DBUG_PRINT("info",("spider tgt_wrapper=%s", direct_sql->tgt_wrapper));
+  tmp_name = strmov(direct_sql->conn_key + 1, direct_sql->tgt_wrapper);
+  DBUG_PRINT("info",("spider tgt_host=%s", direct_sql->tgt_host));
+  tmp_name = strmov(tmp_name + 1, direct_sql->tgt_host);
+  my_sprintf(port_str, (port_str, "%05ld", direct_sql->tgt_port));
+  DBUG_PRINT("info",("spider port_str=%s", port_str));
+  tmp_name = strmov(tmp_name + 1, port_str);
+  if (direct_sql->tgt_socket)
+  {
+    DBUG_PRINT("info",("spider tgt_socket=%s", direct_sql->tgt_socket));
+    tmp_name = strmov(tmp_name + 1, direct_sql->tgt_socket);
+  } else
+    tmp_name++;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (direct_sql->access_mode == 0)
+  {
+#endif
+    if (!tables_on_different_db_are_joinable)
+    {
+      if (direct_sql->tgt_default_db_name)
+      {
+        DBUG_PRINT("info",("spider tgt_default_db_name=%s",
+          direct_sql->tgt_default_db_name));
+        tmp_name = strmov(tmp_name + 1, direct_sql->tgt_default_db_name);
+      } else
+        tmp_name++;
+    }
+    if (direct_sql->tgt_username)
+    {
+      DBUG_PRINT("info",("spider tgt_username=%s", direct_sql->tgt_username));
+      tmp_name = strmov(tmp_name + 1, direct_sql->tgt_username);
+    } else
+      tmp_name++;
+    if (direct_sql->tgt_password)
+    {
+      DBUG_PRINT("info",("spider tgt_password=%s", direct_sql->tgt_password));
+      tmp_name = strmov(tmp_name + 1, direct_sql->tgt_password);
+    } else
+      tmp_name++;
+    if (direct_sql->tgt_ssl_ca)
+    {
+      DBUG_PRINT("info",("spider tgt_ssl_ca=%s", direct_sql->tgt_ssl_ca));
+      tmp_name = strmov(tmp_name + 1, direct_sql->tgt_ssl_ca);
+    } else
+      tmp_name++;
+    if (direct_sql->tgt_ssl_capath)
+    {
+      DBUG_PRINT("info",("spider tgt_ssl_capath=%s",
+        direct_sql->tgt_ssl_capath));
+      tmp_name = strmov(tmp_name + 1, direct_sql->tgt_ssl_capath);
+    } else
+      tmp_name++;
+    if (direct_sql->tgt_ssl_cert)
+    {
+      DBUG_PRINT("info",("spider tgt_ssl_cert=%s", direct_sql->tgt_ssl_cert));
+      tmp_name = strmov(tmp_name + 1, direct_sql->tgt_ssl_cert);
+    } else
+      tmp_name++;
+    if (direct_sql->tgt_ssl_cipher)
+    {
+      DBUG_PRINT("info",("spider tgt_ssl_cipher=%s",
+        direct_sql->tgt_ssl_cipher));
+      tmp_name = strmov(tmp_name + 1, direct_sql->tgt_ssl_cipher);
+    } else
+      tmp_name++;
+    if (direct_sql->tgt_ssl_key)
+    {
+      DBUG_PRINT("info",("spider tgt_ssl_key=%s", direct_sql->tgt_ssl_key));
+      tmp_name = strmov(tmp_name + 1, direct_sql->tgt_ssl_key);
+    } else
+      tmp_name++;
+    tmp_name++;
+    *tmp_name = '0' + ((char) direct_sql->tgt_ssl_vsc);
+    if (direct_sql->tgt_default_file)
+    {
+      DBUG_PRINT("info",("spider tgt_default_file=%s",
+        direct_sql->tgt_default_file));
+      tmp_name = strmov(tmp_name + 1, direct_sql->tgt_default_file);
+    } else
+      tmp_name++;
+    if (direct_sql->tgt_default_group)
+    {
+      DBUG_PRINT("info",("spider tgt_default_group=%s",
+        direct_sql->tgt_default_group));
+      tmp_name = strmov(tmp_name + 1, direct_sql->tgt_default_group);
+    } else
+      tmp_name++;
+    if (direct_sql->tgt_dsn)
+    {
+      DBUG_PRINT("info",("spider tgt_dsn=%s",
+        direct_sql->tgt_dsn));
+      tmp_name = strmov(tmp_name + 1, direct_sql->tgt_dsn);
+    } else
+      tmp_name++;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  }
+#endif
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  direct_sql->conn_key_hash_value = my_calc_hash(&spider_open_connections,
+    (uchar*) direct_sql->conn_key, direct_sql->conn_key_length);
+#endif
+  DBUG_RETURN(0);
+}
+
+SPIDER_CONN *spider_udf_direct_sql_create_conn(
+  const SPIDER_DIRECT_SQL *direct_sql,
+  int *error_num
+) {
+  SPIDER_CONN *conn;
+  SPIDER_IP_PORT_CONN *ip_port_conn;
+  char *tmp_name, *tmp_host, *tmp_username, *tmp_password, *tmp_socket;
+  char *tmp_wrapper, *tmp_db, *tmp_ssl_ca, *tmp_ssl_capath, *tmp_ssl_cert;
+  char *tmp_ssl_cipher, *tmp_ssl_key, *tmp_default_file, *tmp_default_group;
+  char *tmp_dsn;
+  int *need_mon;
+  bool tables_on_different_db_are_joinable = TRUE;
+  DBUG_ENTER("spider_udf_direct_sql_create_conn");
+
+  if (unlikely(!UTC))
+  {
+    /* UTC time zone for timestamp columns */
+    String tz_00_name(STRING_WITH_LEN("+00:00"), &my_charset_bin);
+    UTC = my_tz_find(current_thd, &tz_00_name);
+  }
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (direct_sql->access_mode == 0)
+  {
+#endif
+    tables_on_different_db_are_joinable =
+      spider_dbton[direct_sql->dbton_id].db_util->
+        tables_on_different_db_are_joinable();
+    if (!(conn = (SPIDER_CONN *)
+      spider_bulk_malloc(spider_current_trx, 32, MYF(MY_WME | MY_ZEROFILL),
+        &conn, (uint) (sizeof(*conn)),
+        &tmp_name, (uint) (direct_sql->conn_key_length + 1),
+        &tmp_host, (uint) (direct_sql->tgt_host_length + 1),
+        &tmp_username, (uint) (direct_sql->tgt_username_length + 1),
+        &tmp_password, (uint) (direct_sql->tgt_password_length + 1),
+        &tmp_socket, (uint) (direct_sql->tgt_socket_length + 1),
+        &tmp_wrapper, (uint) (direct_sql->tgt_wrapper_length + 1),
+        &tmp_db, (uint) (tables_on_different_db_are_joinable ?
+          0 : direct_sql->tgt_default_db_name_length + 1),
+        &tmp_ssl_ca, (uint) (direct_sql->tgt_ssl_ca_length + 1),
+        &tmp_ssl_capath, (uint) (direct_sql->tgt_ssl_capath_length + 1),
+        &tmp_ssl_cert, (uint) (direct_sql->tgt_ssl_cert_length + 1),
+        &tmp_ssl_cipher, (uint) (direct_sql->tgt_ssl_cipher_length + 1),
+        &tmp_ssl_key, (uint) (direct_sql->tgt_ssl_key_length + 1),
+        &tmp_default_file,
+          (uint) (direct_sql->tgt_default_file_length + 1),
+        &tmp_default_group,
+          (uint) (direct_sql->tgt_default_group_length + 1),
+        &tmp_dsn,
+          (uint) (direct_sql->tgt_dsn_length + 1),
+        &need_mon, (uint) (sizeof(int)),
+        NullS))
+    ) {
+      *error_num = HA_ERR_OUT_OF_MEM;
+      goto error_alloc_conn;
+    }
+    conn->default_database.init_calc_mem(138);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  } else {
+    if (!(conn = (SPIDER_CONN *)
+      spider_bulk_malloc(spider_current_trx, 33, MYF(MY_WME | MY_ZEROFILL),
+        &conn, (uint) (sizeof(*conn)),
+        &tmp_name, (uint) (direct_sql->conn_key_length + 1),
+        &tmp_host, (uint) (direct_sql->tgt_host_length + 1),
+        &tmp_socket, (uint) (direct_sql->tgt_socket_length + 1),
+        &tmp_wrapper, (uint) (direct_sql->tgt_wrapper_length + 1),
+        &need_mon, (uint) (sizeof(int)),
+        NullS))
+    ) {
+      *error_num = HA_ERR_OUT_OF_MEM;
+      goto error_alloc_conn;
+    }
+    conn->default_database.init_calc_mem(103);
+  }
+#endif
+
+  conn->conn_key_length = direct_sql->conn_key_length;
+  conn->conn_key = tmp_name;
+  memcpy(conn->conn_key, direct_sql->conn_key, direct_sql->conn_key_length);
+  conn->tgt_wrapper_length = direct_sql->tgt_wrapper_length;
+  conn->tgt_wrapper = tmp_wrapper;
+  memcpy(conn->tgt_wrapper, direct_sql->tgt_wrapper,
+    direct_sql->tgt_wrapper_length);
+  conn->tgt_host_length = direct_sql->tgt_host_length;
+  conn->tgt_host = tmp_host;
+  memcpy(conn->tgt_host, direct_sql->tgt_host, direct_sql->tgt_host_length);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (direct_sql->access_mode == 0)
+  {
+#endif
+    conn->tgt_port = direct_sql->tgt_port;
+    conn->tgt_socket_length = direct_sql->tgt_socket_length;
+    conn->tgt_socket = tmp_socket;
+    memcpy(conn->tgt_socket, direct_sql->tgt_socket,
+      direct_sql->tgt_socket_length);
+    if (!tables_on_different_db_are_joinable)
+    {
+      conn->tgt_db_length = direct_sql->tgt_default_db_name_length;
+      conn->tgt_db = tmp_db;
+      memcpy(conn->tgt_db, direct_sql->tgt_default_db_name,
+        direct_sql->tgt_default_db_name_length);
+    }
+    conn->tgt_username_length = direct_sql->tgt_username_length;
+    conn->tgt_username = tmp_username;
+    memcpy(conn->tgt_username, direct_sql->tgt_username,
+      direct_sql->tgt_username_length);
+    conn->tgt_password_length = direct_sql->tgt_password_length;
+    conn->tgt_password = tmp_password;
+    memcpy(conn->tgt_password, direct_sql->tgt_password,
+      direct_sql->tgt_password_length);
+    conn->tgt_ssl_ca_length = direct_sql->tgt_ssl_ca_length;
+    if (conn->tgt_ssl_ca_length)
+    {
+      conn->tgt_ssl_ca = tmp_ssl_ca;
+      memcpy(conn->tgt_ssl_ca, direct_sql->tgt_ssl_ca,
+        direct_sql->tgt_ssl_ca_length);
+    } else
+      conn->tgt_ssl_ca = NULL;
+    conn->tgt_ssl_capath_length = direct_sql->tgt_ssl_capath_length;
+    if (conn->tgt_ssl_capath_length)
+    {
+      conn->tgt_ssl_capath = tmp_ssl_capath;
+      memcpy(conn->tgt_ssl_capath, direct_sql->tgt_ssl_capath,
+        direct_sql->tgt_ssl_capath_length);
+    } else
+      conn->tgt_ssl_capath = NULL;
+    conn->tgt_ssl_cert_length = direct_sql->tgt_ssl_cert_length;
+    if (conn->tgt_ssl_cert_length)
+    {
+      conn->tgt_ssl_cert = tmp_ssl_cert;
+      memcpy(conn->tgt_ssl_cert, direct_sql->tgt_ssl_cert,
+        direct_sql->tgt_ssl_cert_length);
+    } else
+      conn->tgt_ssl_cert = NULL;
+    conn->tgt_ssl_cipher_length = direct_sql->tgt_ssl_cipher_length;
+    if (conn->tgt_ssl_cipher_length)
+    {
+      conn->tgt_ssl_cipher = tmp_ssl_cipher;
+      memcpy(conn->tgt_ssl_cipher, direct_sql->tgt_ssl_cipher,
+        direct_sql->tgt_ssl_cipher_length);
+    } else
+      conn->tgt_ssl_cipher = NULL;
+    conn->tgt_ssl_key_length = direct_sql->tgt_ssl_key_length;
+    if (conn->tgt_ssl_key_length)
+    {
+      conn->tgt_ssl_key = tmp_ssl_key;
+      memcpy(conn->tgt_ssl_key, direct_sql->tgt_ssl_key,
+        direct_sql->tgt_ssl_key_length);
+    } else
+      conn->tgt_ssl_key = NULL;
+    conn->tgt_default_file_length = direct_sql->tgt_default_file_length;
+    if (conn->tgt_default_file_length)
+    {
+      conn->tgt_default_file = tmp_default_file;
+      memcpy(conn->tgt_default_file, direct_sql->tgt_default_file,
+        direct_sql->tgt_default_file_length);
+    } else
+      conn->tgt_default_file = NULL;
+    conn->tgt_default_group_length = direct_sql->tgt_default_group_length;
+    if (conn->tgt_default_group_length)
+    {
+      conn->tgt_default_group = tmp_default_group;
+      memcpy(conn->tgt_default_group, direct_sql->tgt_default_group,
+        direct_sql->tgt_default_group_length);
+    } else
+      conn->tgt_default_group = NULL;
+    conn->tgt_dsn_length = direct_sql->tgt_dsn_length;
+    if (conn->tgt_dsn_length)
+    {
+      conn->tgt_dsn = tmp_dsn;
+      memcpy(conn->tgt_dsn, direct_sql->tgt_dsn,
+        direct_sql->tgt_dsn_length);
+    } else
+      conn->tgt_dsn = NULL;
+    conn->tgt_ssl_vsc = direct_sql->tgt_ssl_vsc;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  } else {
+    conn->hs_port = direct_sql->tgt_port;
+    if (direct_sql->tgt_socket)
+    {
+      conn->hs_sock_length = direct_sql->tgt_socket_length;
+      conn->hs_sock = tmp_socket;
+      memcpy(conn->hs_sock, direct_sql->tgt_socket,
+        direct_sql->tgt_socket_length);
+    }
+  }
+#endif
+  conn->dbton_id = direct_sql->dbton_id;
+  conn->conn_need_mon = need_mon;
+  conn->need_mon = need_mon;
+  if (!(conn->db_conn = spider_dbton[conn->dbton_id].create_db_conn(conn)))
+  {
+    *error_num = HA_ERR_OUT_OF_MEM;
+    goto error_db_conn_create;
+  }
+  if ((*error_num = conn->db_conn->init()))
+  {
+    goto error_db_conn_init;
+  }
+  conn->join_trx = 0;
+  conn->thd = NULL;
+  conn->table_lock = 0;
+  conn->semi_trx_isolation = -2;
+  conn->semi_trx_isolation_chk = FALSE;
+  conn->semi_trx_chk = FALSE;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (direct_sql->access_mode == 0)
+  {
+#endif
+    conn->conn_kind = SPIDER_CONN_KIND_MYSQL;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  } else if (direct_sql->access_mode == 1)
+  {
+    conn->conn_kind = SPIDER_CONN_KIND_HS_READ;
+  } else {
+    conn->conn_kind = SPIDER_CONN_KIND_HS_WRITE;
+  }
+#endif
+
+#if MYSQL_VERSION_ID < 50500
+  if (pthread_mutex_init(&conn->mta_conn_mutex, MY_MUTEX_INIT_FAST))
+#else
+  if (mysql_mutex_init(spd_key_mutex_mta_conn, &conn->mta_conn_mutex,
+    MY_MUTEX_INIT_FAST))
+#endif
+  {
+    *error_num = HA_ERR_OUT_OF_MEM;
+    goto error_mta_conn_mutex_init;
+  }
+
+  if (unlikely((*error_num = spider_conn_init(conn))))
+  {
+    goto error_conn_init;
+  }
+
+  if ((*error_num = spider_db_udf_direct_sql_connect(direct_sql, conn)))
+    goto error;
+  conn->ping_time = (time_t) time((time_t*) 0);
+  conn->connect_error_time = conn->ping_time;
+  pthread_mutex_lock(&spider_conn_id_mutex);
+  conn->conn_id = spider_conn_id;
+  ++spider_conn_id;
+  pthread_mutex_unlock(&spider_conn_id_mutex);
+
+  pthread_mutex_lock(&spider_ipport_conn_mutex);
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  if ((ip_port_conn = (SPIDER_IP_PORT_CONN*) my_hash_search_using_hash_value(
+    &spider_ipport_conns, conn->conn_key_hash_value,
+    (uchar*)conn->conn_key, conn->conn_key_length)))
+#else
+  if ((ip_port_conn = (SPIDER_IP_PORT_CONN*) my_hash_search(
+    &spider_ipport_conns, (uchar*)conn->conn_key, conn->conn_key_length)))
+#endif
+  { /* exists, +1 */
+    pthread_mutex_unlock(&spider_ipport_conn_mutex);
+    pthread_mutex_lock(&ip_port_conn->mutex);
+    if (spider_param_max_connections())
+    { /* enable conncetion pool */
+      if (ip_port_conn->ip_port_count >= spider_param_max_connections())
+      { /* bigger than the max num of connections, free conn and return NULL */
+        pthread_mutex_unlock(&ip_port_conn->mutex);
+        goto error_too_many_ipport_count;
+      }
+    }
+    ip_port_conn->ip_port_count++;
+    pthread_mutex_unlock(&ip_port_conn->mutex);
+  }
+  else
+  {// do not exist
+    ip_port_conn = spider_create_ipport_conn(conn);
+    if (!ip_port_conn) {
+      /* failed, always do not effect 'create conn' */
+      pthread_mutex_unlock(&spider_ipport_conn_mutex);
+      DBUG_RETURN(conn);
+    }
+    if (my_hash_insert(&spider_ipport_conns, (uchar *)ip_port_conn)) {
+      /* insert failed, always do not effect 'create conn' */
+      pthread_mutex_unlock(&spider_ipport_conn_mutex);
+      DBUG_RETURN(conn);
+    }
+    pthread_mutex_unlock(&spider_ipport_conn_mutex);
+  }
+  conn->ip_port_conn = ip_port_conn;
+
+  DBUG_RETURN(conn);
+
+error:
+  DBUG_ASSERT(!conn->mta_conn_mutex_file_pos.file_name);
+error_too_many_ipport_count:
+  spider_conn_done(conn);
+error_conn_init:
+  pthread_mutex_destroy(&conn->mta_conn_mutex);
+error_mta_conn_mutex_init:
+error_db_conn_init:
+  delete conn->db_conn;
+error_db_conn_create:
+  spider_free(spider_current_trx, conn, MYF(0));
+error_alloc_conn:
+  DBUG_RETURN(NULL);
+}
+
+SPIDER_CONN *spider_udf_direct_sql_get_conn(
+  const SPIDER_DIRECT_SQL *direct_sql,
+  SPIDER_TRX *trx,
+  int *error_num
+) {
+  SPIDER_CONN *conn = NULL;
+  DBUG_ENTER("spider_udf_direct_sql_get_conn");
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  DBUG_PRINT("info",("spider direct_sql->access_mode=%d",
+    direct_sql->access_mode));
+#endif
+
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  if (
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    (direct_sql->access_mode == 0 &&
+#endif
+      !(conn = (SPIDER_CONN*) my_hash_search_using_hash_value(
+        &trx->trx_conn_hash, direct_sql->conn_key_hash_value,
+        (uchar*) direct_sql->conn_key, direct_sql->conn_key_length))
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    ) ||
+    (direct_sql->access_mode == 1 &&
+      !(conn = (SPIDER_CONN*) my_hash_search_using_hash_value(
+        &trx->trx_direct_hs_r_conn_hash, direct_sql->conn_key_hash_value,
+        (uchar*) direct_sql->conn_key, direct_sql->conn_key_length))
+    ) ||
+    (direct_sql->access_mode == 2 &&
+      !(conn = (SPIDER_CONN*) my_hash_search_using_hash_value(
+        &trx->trx_direct_hs_w_conn_hash, direct_sql->conn_key_hash_value,
+        (uchar*) direct_sql->conn_key, direct_sql->conn_key_length))
+    )
+#endif
+  )
+#else
+  if (
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    (direct_sql->access_mode == 0 &&
+#endif
+      !(conn = (SPIDER_CONN*) my_hash_search(&trx->trx_conn_hash,
+          (uchar*) direct_sql->conn_key, direct_sql->conn_key_length))
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    ) ||
+    (direct_sql->access_mode == 1 &&
+      !(conn = (SPIDER_CONN*) my_hash_search(&trx->trx_direct_hs_r_conn_hash,
+          (uchar*) direct_sql->conn_key, direct_sql->conn_key_length))
+    ) ||
+    (direct_sql->access_mode == 2 &&
+      !(conn = (SPIDER_CONN*) my_hash_search(&trx->trx_direct_hs_w_conn_hash,
+          (uchar*) direct_sql->conn_key, direct_sql->conn_key_length))
+    )
+#endif
+  )
+#endif
+  {
+    if (
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      (direct_sql->access_mode == 0 &&
+#endif
+        (
+          (spider_param_conn_recycle_mode(trx->thd) & 1) ||
+          spider_param_conn_recycle_strict(trx->thd)
+        )
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      ) ||
+      (direct_sql->access_mode == 1 &&
+        (
+          (spider_param_hs_r_conn_recycle_mode(trx->thd) & 1) ||
+          spider_param_hs_r_conn_recycle_strict(trx->thd)
+        )
+      ) ||
+      (direct_sql->access_mode == 2 &&
+        (
+          (spider_param_hs_w_conn_recycle_mode(trx->thd) & 1) ||
+          spider_param_hs_w_conn_recycle_strict(trx->thd)
+        )
+      )
+#endif
+    ) {
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      if (direct_sql->access_mode == 0)
+      {
+#endif
+        pthread_mutex_lock(&spider_conn_mutex);
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+        if (!(conn = (SPIDER_CONN*) my_hash_search_using_hash_value(
+          &spider_open_connections, direct_sql->conn_key_hash_value,
+          (uchar*) direct_sql->conn_key, direct_sql->conn_key_length)))
+#else
+        if (!(conn = (SPIDER_CONN*) my_hash_search(&spider_open_connections,
+          (uchar*) direct_sql->conn_key, direct_sql->conn_key_length)))
+#endif
+        {
+          pthread_mutex_unlock(&spider_conn_mutex);
+          DBUG_PRINT("info",("spider create new conn"));
+          if(!(conn = spider_udf_direct_sql_create_conn(direct_sql,
+            error_num)))
+            goto error;
+        } else {
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+          my_hash_delete_with_hash_value(&spider_open_connections,
+            conn->conn_key_hash_value, (uchar*) conn);
+#else
+          my_hash_delete(&spider_open_connections, (uchar*) conn);
+#endif
+          pthread_mutex_unlock(&spider_conn_mutex);
+          DBUG_PRINT("info",("spider get global conn"));
+        }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      }
+#endif
+    } else {
+      DBUG_PRINT("info",("spider create new conn"));
+      /* conn_recycle_strict = 0 and conn_recycle_mode = 0 or 2 */
+      if(!(conn = spider_udf_direct_sql_create_conn(direct_sql, error_num)))
+        goto error;
+    }
+    conn->thd = trx->thd;
+    conn->priority = direct_sql->priority;
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    if (direct_sql->access_mode == 0)
+    {
+#endif
+      uint old_elements = trx->trx_conn_hash.array.max_element;
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+      if (my_hash_insert_with_hash_value(&trx->trx_conn_hash,
+        direct_sql->conn_key_hash_value, (uchar*) conn))
+#else
+      if (my_hash_insert(&trx->trx_conn_hash, (uchar*) conn))
+#endif
+      {
+        spider_free_conn(conn);
+        *error_num = HA_ERR_OUT_OF_MEM;
+        goto error;
+      }
+      if (trx->trx_conn_hash.array.max_element > old_elements)
+      {
+        spider_alloc_calc_mem(spider_current_trx,
+          trx->trx_conn_hash,
+          (trx->trx_conn_hash.array.max_element - old_elements) *
+          trx->trx_conn_hash.array.size_of_element);
+      }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    } else if (direct_sql->access_mode == 1)
+    {
+      uint old_elements = trx->trx_direct_hs_r_conn_hash.array.max_element;
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+      if (my_hash_insert_with_hash_value(&trx->trx_direct_hs_r_conn_hash,
+        direct_sql->conn_key_hash_value, (uchar*) conn))
+#else
+      if (my_hash_insert(&trx->trx_direct_hs_r_conn_hash, (uchar*) conn))
+#endif
+      {
+        spider_free_conn(conn);
+        *error_num = HA_ERR_OUT_OF_MEM;
+        goto error;
+      }
+      if (trx->trx_direct_hs_r_conn_hash.array.max_element > old_elements)
+      {
+        spider_alloc_calc_mem(spider_current_trx,
+          trx->trx_direct_hs_r_conn_hash,
+          (trx->trx_direct_hs_r_conn_hash.array.max_element - old_elements) *
+          trx->trx_direct_hs_r_conn_hash.array.size_of_element);
+      }
+    } else {
+      uint old_elements = trx->trx_direct_hs_w_conn_hash.array.max_element;
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+      if (my_hash_insert_with_hash_value(&trx->trx_direct_hs_w_conn_hash,
+        direct_sql->conn_key_hash_value, (uchar*) conn))
+#else
+      if (my_hash_insert(&trx->trx_direct_hs_w_conn_hash, (uchar*) conn))
+#endif
+      {
+        spider_free_conn(conn);
+        *error_num = HA_ERR_OUT_OF_MEM;
+        goto error;
+      }
+      if (trx->trx_direct_hs_w_conn_hash.array.max_element > old_elements)
+      {
+        spider_alloc_calc_mem(spider_current_trx,
+          trx->trx_direct_hs_w_conn_hash,
+          (trx->trx_direct_hs_w_conn_hash.array.max_element - old_elements) *
+          trx->trx_direct_hs_w_conn_hash.array.size_of_element);
+      }
+    }
+#endif
+  }
+
+  if (conn->queued_connect)
+  {
+    if ((*error_num = spider_db_udf_direct_sql_connect(direct_sql, conn)))
+      goto error;
+    conn->queued_connect = FALSE;
+  }
+
+  if (conn->queued_ping)
+    conn->queued_ping = FALSE;
+
+  DBUG_PRINT("info",("spider conn=%p", conn));
+  DBUG_PRINT("info",("spider conn->conn_kind=%u", conn->conn_kind));
+  DBUG_RETURN(conn);
+
+error:
+  DBUG_RETURN(NULL);
+}
+
+int spider_udf_direct_sql_get_server(
+  SPIDER_DIRECT_SQL *direct_sql
+) {
+  MEM_ROOT mem_root;
+  int error_num, length;
+  FOREIGN_SERVER *server, server_buf;
+  DBUG_ENTER("spider_udf_direct_sql_get_server");
+  SPD_INIT_ALLOC_ROOT(&mem_root, 65, 0, MYF(MY_WME));
+
+  if (!(server
+       = get_server_by_name(&mem_root, direct_sql->server_name, &server_buf)))
+  {
+    error_num = ER_FOREIGN_SERVER_DOESNT_EXIST;
+    goto error_get_server;
+  }
+
+  if (!direct_sql->tgt_wrapper && server->scheme)
+  {
+    direct_sql->tgt_wrapper_length = strlen(server->scheme);
+    if (!(direct_sql->tgt_wrapper =
+      spider_create_string(server->scheme, direct_sql->tgt_wrapper_length)))
+    {
+      error_num = HA_ERR_OUT_OF_MEM;
+      my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+      goto error;
+    }
+    DBUG_PRINT("info",("spider tgt_wrapper=%s", direct_sql->tgt_wrapper));
+  }
+
+  if (!direct_sql->tgt_host && server->host)
+  {
+    direct_sql->tgt_host_length = strlen(server->host);
+    if (!(direct_sql->tgt_host =
+      spider_create_string(server->host, direct_sql->tgt_host_length)))
+    {
+      error_num = HA_ERR_OUT_OF_MEM;
+      my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+      goto error;
+    }
+    DBUG_PRINT("info",("spider tgt_host=%s", direct_sql->tgt_host));
+  }
+
+  if (direct_sql->tgt_port == -1)
+  {
+    direct_sql->tgt_port = server->port;
+    DBUG_PRINT("info",("spider tgt_port=%ld", direct_sql->tgt_port));
+  }
+
+  if (!direct_sql->tgt_socket && server->socket)
+  {
+    direct_sql->tgt_socket_length = strlen(server->socket);
+    if (!(direct_sql->tgt_socket =
+      spider_create_string(server->socket, direct_sql->tgt_socket_length)))
+    {
+      error_num = HA_ERR_OUT_OF_MEM;
+      my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+      goto error;
+    }
+    DBUG_PRINT("info",("spider tgt_socket=%s", direct_sql->tgt_socket));
+  }
+
+  if (!direct_sql->tgt_default_db_name && server->db &&
+    (length = strlen(server->db)))
+  {
+    direct_sql->tgt_default_db_name_length = length;
+    if (!(direct_sql->tgt_default_db_name =
+      spider_create_string(server->db, length)))
+    {
+      error_num = HA_ERR_OUT_OF_MEM;
+      my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+      goto error;
+    }
+    DBUG_PRINT("info",("spider tgt_default_db_name=%s",
+      direct_sql->tgt_default_db_name));
+  }
+
+  if (!direct_sql->tgt_username && server->username)
+  {
+    direct_sql->tgt_username_length = strlen(server->username);
+    if (!(direct_sql->tgt_username =
+      spider_create_string(server->username, direct_sql->tgt_username_length)))
+    {
+      error_num = HA_ERR_OUT_OF_MEM;
+      my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+      goto error;
+    }
+    DBUG_PRINT("info",("spider tgt_username=%s", direct_sql->tgt_username));
+  }
+
+  if (!direct_sql->tgt_password && server->password)
+  {
+    direct_sql->tgt_password_length = strlen(server->password);
+    if (!(direct_sql->tgt_password =
+      spider_create_string(server->password, direct_sql->tgt_password_length)))
+    {
+      error_num = HA_ERR_OUT_OF_MEM;
+      my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+      goto error;
+    }
+    DBUG_PRINT("info",("spider tgt_password=%s", direct_sql->tgt_password));
+  }
+
+  free_root(&mem_root, MYF(0));
+  DBUG_RETURN(0);
+
+error_get_server:
+  my_error(error_num, MYF(0), direct_sql->server_name);
+error:
+  free_root(&mem_root, MYF(0));
+  DBUG_RETURN(error_num);
+}
+
+#define SPIDER_PARAM_STR_LEN(name) name ## _length
+#define SPIDER_PARAM_STR(title_name, param_name) \
+  if (!strncasecmp(tmp_ptr, title_name, title_length)) \
+  { \
+    DBUG_PRINT("info",("spider " title_name " start")); \
+    if (!direct_sql->param_name) \
+    { \
+      if ((direct_sql->param_name = spider_get_string_between_quote( \
+        start_ptr, TRUE, &param_string_parse))) \
+        direct_sql->SPIDER_PARAM_STR_LEN(param_name) = \
+          strlen(direct_sql->param_name); \
+      else { \
+        error_num = param_string_parse.print_param_error(); \
+        goto error; \
+      } \
+      DBUG_PRINT("info",("spider " title_name "=%s", direct_sql->param_name)); \
+    } \
+    break; \
+  }
+#define SPIDER_PARAM_HINT_WITH_MAX(title_name, param_name, check_length, max_size, min_val, max_val) \
+  if (!strncasecmp(tmp_ptr, title_name, check_length)) \
+  { \
+    DBUG_PRINT("info",("spider " title_name " start")); \
+    DBUG_PRINT("info",("spider max_size=%d", max_size)); \
+    int hint_num = atoi(tmp_ptr + check_length) - 1; \
+    DBUG_PRINT("info",("spider hint_num=%d", hint_num)); \
+    DBUG_PRINT("info",("spider direct_sql->param_name=%p", \
+      direct_sql->param_name)); \
+    if (direct_sql->param_name) \
+    { \
+      if (hint_num < 0 || hint_num >= max_size) \
+      { \
+        error_num = param_string_parse.print_param_error(); \
+        goto error; \
+      } else if (direct_sql->param_name[hint_num] != -1) \
+        break; \
+      char *hint_str = spider_get_string_between_quote(start_ptr, FALSE); \
+      if (hint_str) \
+      { \
+        direct_sql->param_name[hint_num] = atoi(hint_str); \
+        if (direct_sql->param_name[hint_num] < min_val) \
+          direct_sql->param_name[hint_num] = min_val; \
+        else if (direct_sql->param_name[hint_num] > max_val) \
+          direct_sql->param_name[hint_num] = max_val; \
+      } else { \
+        error_num = param_string_parse.print_param_error(); \
+        goto error; \
+      } \
+      DBUG_PRINT("info",("spider " title_name "[%d]=%d", hint_num, \
+        direct_sql->param_name[hint_num])); \
+    } else { \
+      error_num = param_string_parse.print_param_error(); \
+      goto error; \
+    } \
+    break; \
+  }
+#define SPIDER_PARAM_INT_WITH_MAX(title_name, param_name, min_val, max_val) \
+  if (!strncasecmp(tmp_ptr, title_name, title_length)) \
+  { \
+    DBUG_PRINT("info",("spider " title_name " start")); \
+    if (direct_sql->param_name == -1) \
+    { \
+      if ((tmp_ptr2 = spider_get_string_between_quote( \
+        start_ptr, FALSE))) \
+      { \
+        direct_sql->param_name = atoi(tmp_ptr2); \
+        if (direct_sql->param_name < min_val) \
+          direct_sql->param_name = min_val; \
+        else if (direct_sql->param_name > max_val) \
+          direct_sql->param_name = max_val; \
+        param_string_parse.set_param_value(tmp_ptr2, \
+                                           tmp_ptr2 + \
+                                             strlen(tmp_ptr2) + 1); \
+      } else { \
+        error_num = param_string_parse.print_param_error(); \
+        goto error; \
+      } \
+      DBUG_PRINT("info",("spider " title_name "=%d", \
+        (int) direct_sql->param_name)); \
+    } \
+    break; \
+  }
+#define SPIDER_PARAM_INT(title_name, param_name, min_val) \
+  if (!strncasecmp(tmp_ptr, title_name, title_length)) \
+  { \
+    DBUG_PRINT("info",("spider " title_name " start")); \
+    if (direct_sql->param_name == -1) \
+    { \
+      if ((tmp_ptr2 = spider_get_string_between_quote( \
+        start_ptr, FALSE))) \
+      { \
+        direct_sql->param_name = atoi(tmp_ptr2); \
+        if (direct_sql->param_name < min_val) \
+          direct_sql->param_name = min_val; \
+        param_string_parse.set_param_value(tmp_ptr2, \
+                                           tmp_ptr2 + \
+                                             strlen(tmp_ptr2) + 1); \
+      } else { \
+        error_num = param_string_parse.print_param_error(); \
+        goto error; \
+      } \
+      DBUG_PRINT("info",("spider " title_name "=%d", direct_sql->param_name)); \
+    } \
+    break; \
+  }
+#define SPIDER_PARAM_LONGLONG(title_name, param_name, min_val) \
+  if (!strncasecmp(tmp_ptr, title_name, title_length)) \
+  { \
+    DBUG_PRINT("info",("spider " title_name " start")); \
+    if (direct_sql->param_name == -1) \
+    { \
+      if ((tmp_ptr2 = spider_get_string_between_quote( \
+        start_ptr, FALSE))) \
+      { \
+        direct_sql->param_name = \
+          my_strtoll10(tmp_ptr2, (char**) NULL, &error_num); \
+        if (direct_sql->param_name < min_val) \
+          direct_sql->param_name = min_val; \
+        param_string_parse.set_param_value(tmp_ptr2, \
+                                           tmp_ptr2 + \
+                                             strlen(tmp_ptr2) + 1); \
+      } else { \
+        error_num = param_string_parse.print_param_error(); \
+        goto error; \
+      } \
+      DBUG_PRINT("info",("spider " title_name "=%lld", \
+        direct_sql->param_name)); \
+    } \
+    break; \
+  }
+
+int spider_udf_parse_direct_sql_param(
+  SPIDER_TRX *trx,
+  SPIDER_DIRECT_SQL *direct_sql,
+  const char *param,
+  int param_length
+) {
+  int error_num = 0, roop_count;
+  char *param_string = NULL;
+  char *sprit_ptr;
+  char *tmp_ptr, *tmp_ptr2, *start_ptr;
+  int title_length;
+  SPIDER_PARAM_STRING_PARSE param_string_parse;
+  DBUG_ENTER("spider_udf_parse_direct_sql_param");
+  direct_sql->tgt_port = -1;
+  direct_sql->tgt_ssl_vsc = -1;
+  direct_sql->table_loop_mode = -1;
+  direct_sql->priority = -1;
+  direct_sql->connect_timeout = -1;
+  direct_sql->net_read_timeout = -1;
+  direct_sql->net_write_timeout = -1;
+  direct_sql->bulk_insert_rows = -1;
+  direct_sql->connection_channel = -1;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  direct_sql->access_mode = -1;
+#endif
+#if MYSQL_VERSION_ID < 50500
+#else
+  direct_sql->use_real_table = -1;
+#endif
+  direct_sql->error_rw_mode = -1;
+  for (roop_count = 0; roop_count < direct_sql->table_count; roop_count++)
+    direct_sql->iop[roop_count] = -1;
+
+  if (param_length == 0)
+    goto set_default;
+  DBUG_PRINT("info",("spider create param_string string"));
+  if (
+    !(param_string = spider_create_string(
+      param,
+      param_length))
+  ) {
+    error_num = HA_ERR_OUT_OF_MEM;
+    my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+    goto error_alloc_param_string;
+  }
+  DBUG_PRINT("info",("spider param_string=%s", param_string));
+
+  sprit_ptr = param_string;
+  param_string_parse.init(param_string, ER_SPIDER_INVALID_UDF_PARAM_NUM);
+  while (sprit_ptr)
+  {
+    tmp_ptr = sprit_ptr;
+    while (*tmp_ptr == ' ' || *tmp_ptr == '\r' ||
+      *tmp_ptr == '\n' || *tmp_ptr == '\t')
+      tmp_ptr++;
+
+    if (*tmp_ptr == '\0')
+      break;
+
+    title_length = 0;
+    start_ptr = tmp_ptr;
+    while (*start_ptr != ' ' && *start_ptr != '\'' &&
+      *start_ptr != '"' && *start_ptr != '\0' &&
+      *start_ptr != '\r' && *start_ptr != '\n' &&
+      *start_ptr != '\t')
+    {
+      title_length++;
+      start_ptr++;
+    }
+    param_string_parse.set_param_title(tmp_ptr, tmp_ptr + title_length);
+    if ((error_num = param_string_parse.get_next_parameter_head(
+      start_ptr, &sprit_ptr)))
+    {
+      goto error;
+    }
+
+    switch (title_length)
+    {
+      case 0:
+        error_num = param_string_parse.print_param_error();
+        if (error_num)
+          goto error;
+        continue;
+      case 3:
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+        SPIDER_PARAM_INT_WITH_MAX("acm", access_mode, 0, 2);
+#endif
+        SPIDER_PARAM_LONGLONG("bir", bulk_insert_rows, 0);
+        SPIDER_PARAM_INT_WITH_MAX("cch", connection_channel, 0, 63);
+        SPIDER_PARAM_INT("cto", connect_timeout, 0);
+        SPIDER_PARAM_STR("dff", tgt_default_file);
+        SPIDER_PARAM_STR("dfg", tgt_default_group);
+        SPIDER_PARAM_STR("dsn", tgt_dsn);
+        SPIDER_PARAM_LONGLONG("prt", priority, 0);
+        SPIDER_PARAM_INT("rto", net_read_timeout, 0);
+        SPIDER_PARAM_STR("sca", tgt_ssl_ca);
+        SPIDER_PARAM_STR("sch", tgt_ssl_cipher);
+        SPIDER_PARAM_STR("scp", tgt_ssl_capath);
+        SPIDER_PARAM_STR("scr", tgt_ssl_cert);
+        SPIDER_PARAM_STR("sky", tgt_ssl_key);
+        SPIDER_PARAM_STR("srv", server_name);
+        SPIDER_PARAM_INT_WITH_MAX("svc", tgt_ssl_vsc, 0, 1);
+        SPIDER_PARAM_INT_WITH_MAX("tlm", table_loop_mode, 0, 2);
+#if MYSQL_VERSION_ID < 50500
+#else
+        SPIDER_PARAM_INT_WITH_MAX("urt", use_real_table, 0, 1);
+#endif
+        SPIDER_PARAM_INT("wto", net_write_timeout, 0);
+        error_num = param_string_parse.print_param_error();
+        goto error;
+      case 4:
+        SPIDER_PARAM_INT_WITH_MAX("erwm", error_rw_mode, 0, 1);
+        SPIDER_PARAM_STR("host", tgt_host);
+        SPIDER_PARAM_INT_WITH_MAX("port", tgt_port, 0, 65535);
+        SPIDER_PARAM_STR("user", tgt_username);
+        error_num = param_string_parse.print_param_error();
+        goto error;
+      case 6:
+        SPIDER_PARAM_STR("server", server_name);
+        SPIDER_PARAM_STR("socket", tgt_socket);
+        SPIDER_PARAM_HINT_WITH_MAX("iop", iop, 3, direct_sql->table_count, 0, 2);
+        SPIDER_PARAM_STR("ssl_ca", tgt_ssl_ca);
+        error_num = param_string_parse.print_param_error();
+        goto error;
+      case 7:
+        SPIDER_PARAM_STR("wrapper", tgt_wrapper);
+        SPIDER_PARAM_STR("ssl_key", tgt_ssl_key);
+        error_num = param_string_parse.print_param_error();
+        goto error;
+      case 8:
+        SPIDER_PARAM_STR("database", tgt_default_db_name);
+        SPIDER_PARAM_STR("password", tgt_password);
+        SPIDER_PARAM_LONGLONG("priority", priority, 0);
+        SPIDER_PARAM_STR("ssl_cert", tgt_ssl_cert);
+        error_num = param_string_parse.print_param_error();
+        goto error;
+      case 10:
+        SPIDER_PARAM_STR("ssl_cipher", tgt_ssl_cipher);
+        SPIDER_PARAM_STR("ssl_capath", tgt_ssl_capath);
+        error_num = param_string_parse.print_param_error();
+        goto error;
+      case 11:
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+        SPIDER_PARAM_INT_WITH_MAX("access_mode", access_mode, 0, 2);
+#endif
+        error_num = param_string_parse.print_param_error();
+        goto error;
+      case 12:
+        SPIDER_PARAM_STR("default_file", tgt_default_file);
+        error_num = param_string_parse.print_param_error();
+        goto error;
+      case 13:
+        SPIDER_PARAM_STR("default_group", tgt_default_group);
+        SPIDER_PARAM_INT_WITH_MAX("error_rw_mode", error_rw_mode, 0, 1);
+        error_num = param_string_parse.print_param_error();
+        goto error;
+      case 14:
+#if MYSQL_VERSION_ID < 50500
+#else
+        SPIDER_PARAM_INT_WITH_MAX("use_real_table", use_real_table, 0, 1);
+#endif
+        error_num = param_string_parse.print_param_error();
+        goto error;
+      case 15:
+        SPIDER_PARAM_INT_WITH_MAX("table_loop_mode", table_loop_mode, 0, 2);
+        SPIDER_PARAM_INT("connect_timeout", connect_timeout, 0);
+        error_num = param_string_parse.print_param_error();
+        goto error;
+      case 16:
+        SPIDER_PARAM_LONGLONG("bulk_insert_rows", bulk_insert_rows, 1);
+        SPIDER_PARAM_INT("net_read_timeout", net_read_timeout, 0);
+        error_num = param_string_parse.print_param_error();
+        goto error;
+      case 17:
+        SPIDER_PARAM_INT("net_write_timeout", net_write_timeout, 0);
+        error_num = param_string_parse.print_param_error();
+        goto error;
+      case 18:
+        SPIDER_PARAM_INT_WITH_MAX(
+          "connection_channel", connection_channel, 0, 63);
+        error_num = param_string_parse.print_param_error();
+        goto error;
+      case 22:
+        SPIDER_PARAM_INT_WITH_MAX("ssl_verify_server_cert", tgt_ssl_vsc, 0, 1);
+        error_num = param_string_parse.print_param_error();
+        goto error;
+      default:
+        error_num = param_string_parse.print_param_error();
+        goto error;
+    }
+
+    /* Verify that the remainder of the parameter value is whitespace */
+    if ((error_num = param_string_parse.has_extra_parameter_values()))
+      goto error;
+  }
+
+set_default:
+  if ((error_num = spider_udf_set_direct_sql_param_default(
+    trx,
+    direct_sql
+  )))
+    goto error;
+
+  if (param_string)
+  {
+    spider_free(spider_current_trx, param_string, MYF(0));
+  }
+  DBUG_RETURN(0);
+
+error:
+  if (param_string)
+  {
+    spider_free(spider_current_trx, param_string, MYF(0));
+  }
+error_alloc_param_string:
+  DBUG_RETURN(error_num);
+}
+
+int spider_udf_set_direct_sql_param_default(
+  SPIDER_TRX *trx,
+  SPIDER_DIRECT_SQL *direct_sql
+) {
+  bool check_socket;
+  bool check_database;
+  bool socket_has_default_value;
+  bool database_has_default_value;
+  int error_num, roop_count;
+  DBUG_ENTER("spider_udf_set_direct_sql_param_default");
+  if (direct_sql->server_name)
+  {
+    if ((error_num = spider_udf_direct_sql_get_server(direct_sql)))
+      DBUG_RETURN(error_num);
+  }
+
+  if (
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    direct_sql->access_mode == 0 &&
+#endif
+    !direct_sql->tgt_socket &&
+    (!direct_sql->tgt_host || !strcmp(direct_sql->tgt_host, my_localhost))
+  ) {
+    check_socket = TRUE;
+  } else {
+    check_socket = FALSE;
+  }
+  if (!direct_sql->tgt_default_db_name)
+  {
+    check_database = TRUE;
+  } else {
+    check_database = FALSE;
+  }
+  if (check_socket || check_database)
+  {
+    socket_has_default_value = check_socket;
+    database_has_default_value = check_database;
+    if (direct_sql->tgt_wrapper)
+    {
+      for (roop_count = 0; roop_count < SPIDER_DBTON_SIZE; roop_count++)
+      {
+        DBUG_PRINT("info",("spider direct_sql->tgt_wrapper=%s",
+          direct_sql->tgt_wrapper));
+        DBUG_PRINT("info",("spider spider_dbton[%d].wrapper=%s", roop_count,
+          spider_dbton[roop_count].wrapper ?
+            spider_dbton[roop_count].wrapper : "NULL"));
+        if (
+          spider_dbton[roop_count].wrapper &&
+          !strcmp(direct_sql->tgt_wrapper,
+            spider_dbton[roop_count].wrapper)
+        ) {
+          if (spider_dbton[roop_count].db_access_type ==
+            SPIDER_DB_ACCESS_TYPE_SQL)
+          {
+            if (check_socket)
+            {
+              socket_has_default_value = spider_dbton[roop_count].
+                db_util->socket_has_default_value();
+            }
+            if (check_database)
+            {
+              database_has_default_value = spider_dbton[roop_count].
+                db_util->database_has_default_value();
+            }
+            break;
+          }
+        }
+      }
+    }
+  } else {
+    socket_has_default_value = FALSE;
+    database_has_default_value = FALSE;
+  }
+
+  if (database_has_default_value)
+  {
+    DBUG_PRINT("info",("spider create default tgt_default_db_name"));
+    direct_sql->tgt_default_db_name_length = SPIDER_THD_db_length(trx->thd);
+    if (
+      !(direct_sql->tgt_default_db_name = spider_create_string(
+        SPIDER_THD_db_str(trx->thd),
+        direct_sql->tgt_default_db_name_length))
+    ) {
+      my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+  }
+
+  if (!direct_sql->tgt_wrapper)
+  {
+    DBUG_PRINT("info",("spider create default tgt_wrapper"));
+    direct_sql->tgt_wrapper_length = SPIDER_DB_WRAPPER_LEN;
+    if (
+      !(direct_sql->tgt_wrapper = spider_create_string(
+        SPIDER_DB_WRAPPER_STR,
+        direct_sql->tgt_wrapper_length))
+    ) {
+      my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+  }
+
+  if (!direct_sql->tgt_host)
+  {
+    DBUG_PRINT("info",("spider create default tgt_host"));
+    direct_sql->tgt_host_length = strlen(my_localhost);
+    if (
+      !(direct_sql->tgt_host = spider_create_string(
+        my_localhost,
+        direct_sql->tgt_host_length))
+    ) {
+      my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+  }
+
+  if (
+    !direct_sql->tgt_default_file &&
+    direct_sql->tgt_default_group &&
+    (*spd_defaults_file || *spd_defaults_extra_file)
+  ) {
+    DBUG_PRINT("info",("spider create default tgt_default_file"));
+    if (*spd_defaults_extra_file)
+    {
+      direct_sql->tgt_default_file_length = strlen(*spd_defaults_extra_file);
+      if (
+        !(direct_sql->tgt_default_file = spider_create_string(
+          *spd_defaults_extra_file,
+          direct_sql->tgt_default_file_length))
+      ) {
+        my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+    } else {
+      direct_sql->tgt_default_file_length = strlen(*spd_defaults_file);
+      if (
+        !(direct_sql->tgt_default_file = spider_create_string(
+          *spd_defaults_file,
+          direct_sql->tgt_default_file_length))
+      ) {
+        my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+    }
+  }
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (direct_sql->access_mode == -1)
+    direct_sql->access_mode = 0;
+#endif
+
+  if (direct_sql->tgt_port == -1)
+  {
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    if (direct_sql->access_mode == 1)
+      direct_sql->tgt_port = 9998;
+    else if (direct_sql->access_mode == 2)
+      direct_sql->tgt_port = 9999;
+    else
+#endif
+      direct_sql->tgt_port = MYSQL_PORT;
+  }
+  else if (direct_sql->tgt_port < 0)
+    direct_sql->tgt_port = 0;
+  else if (direct_sql->tgt_port > 65535)
+    direct_sql->tgt_port = 65535;
+
+  if (direct_sql->tgt_ssl_vsc == -1)
+    direct_sql->tgt_ssl_vsc = 0;
+
+  if (socket_has_default_value)
+  {
+    DBUG_PRINT("info",("spider create default tgt_socket"));
+    direct_sql->tgt_socket_length = strlen((char *) MYSQL_UNIX_ADDR);
+    if (
+      !(direct_sql->tgt_socket = spider_create_string(
+        (char *) MYSQL_UNIX_ADDR,
+        direct_sql->tgt_socket_length))
+    ) {
+      my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+  }
+
+  if (direct_sql->table_loop_mode == -1)
+    direct_sql->table_loop_mode = 0;
+  if (direct_sql->priority == -1)
+    direct_sql->priority = 1000000;
+  if (direct_sql->connect_timeout == -1)
+    direct_sql->connect_timeout = 6;
+  if (direct_sql->net_read_timeout == -1)
+    direct_sql->net_read_timeout = 600;
+  if (direct_sql->net_write_timeout == -1)
+    direct_sql->net_write_timeout = 600;
+  if (direct_sql->bulk_insert_rows == -1)
+    direct_sql->bulk_insert_rows = 3000;
+  if (direct_sql->connection_channel == -1)
+    direct_sql->connection_channel = 0;
+#if MYSQL_VERSION_ID < 50500
+#else
+  if (direct_sql->use_real_table == -1)
+    direct_sql->use_real_table = 0;
+#endif
+  if (direct_sql->error_rw_mode == -1)
+    direct_sql->error_rw_mode = 0;
+  for (roop_count = 0; roop_count < direct_sql->table_count; roop_count++)
+  {
+    if (direct_sql->iop[roop_count] == -1)
+      direct_sql->iop[roop_count] = 0;
+  }
+  DBUG_RETURN(0);
+}
+
+void spider_udf_free_direct_sql_alloc(
+  SPIDER_DIRECT_SQL *direct_sql,
+  my_bool bg
+) {
+  SPIDER_BG_DIRECT_SQL *bg_direct_sql;
+  DBUG_ENTER("spider_udf_free_direct_sql_alloc");
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  if (bg)
+  {
+    pthread_mutex_lock(direct_sql->bg_mutex);
+    bg_direct_sql = (SPIDER_BG_DIRECT_SQL *) direct_sql->parent;
+    if (bg_direct_sql->direct_sql == direct_sql)
+      bg_direct_sql->direct_sql = direct_sql->next;
+    if (direct_sql->next)
+      direct_sql->next->prev = direct_sql->prev;
+    if (direct_sql->prev)
+      direct_sql->prev->next = direct_sql->next;
+    pthread_cond_signal(direct_sql->bg_cond);
+    pthread_mutex_unlock(direct_sql->bg_mutex);
+  }
+#endif
+#if MYSQL_VERSION_ID < 50500
+#else
+  if (direct_sql->real_table_used && direct_sql->open_tables_thd)
+  {
+    spider_sys_close_table(direct_sql->open_tables_thd,
+      &direct_sql->open_tables_backup);
+  }
+#endif
+  if (direct_sql->server_name)
+  {
+    spider_free(spider_current_trx, direct_sql->server_name, MYF(0));
+  }
+  if (direct_sql->tgt_default_db_name)
+  {
+    spider_free(spider_current_trx, direct_sql->tgt_default_db_name, MYF(0));
+  }
+  if (direct_sql->tgt_host)
+  {
+    spider_free(spider_current_trx, direct_sql->tgt_host, MYF(0));
+  }
+  if (direct_sql->tgt_username)
+  {
+    spider_free(spider_current_trx, direct_sql->tgt_username, MYF(0));
+  }
+  if (direct_sql->tgt_password)
+  {
+    spider_free(spider_current_trx, direct_sql->tgt_password, MYF(0));
+  }
+  if (direct_sql->tgt_socket)
+  {
+    spider_free(spider_current_trx, direct_sql->tgt_socket, MYF(0));
+  }
+  if (direct_sql->tgt_wrapper)
+  {
+    spider_free(spider_current_trx, direct_sql->tgt_wrapper, MYF(0));
+  }
+  if (direct_sql->tgt_ssl_ca)
+  {
+    spider_free(spider_current_trx, direct_sql->tgt_ssl_ca, MYF(0));
+  }
+  if (direct_sql->tgt_ssl_capath)
+  {
+    spider_free(spider_current_trx, direct_sql->tgt_ssl_capath, MYF(0));
+  }
+  if (direct_sql->tgt_ssl_cert)
+  {
+    spider_free(spider_current_trx, direct_sql->tgt_ssl_cert, MYF(0));
+  }
+  if (direct_sql->tgt_ssl_cipher)
+  {
+    spider_free(spider_current_trx, direct_sql->tgt_ssl_cipher, MYF(0));
+  }
+  if (direct_sql->tgt_ssl_key)
+  {
+    spider_free(spider_current_trx, direct_sql->tgt_ssl_key, MYF(0));
+  }
+  if (direct_sql->tgt_default_file)
+  {
+    spider_free(spider_current_trx, direct_sql->tgt_default_file, MYF(0));
+  }
+  if (direct_sql->tgt_default_group)
+  {
+    spider_free(spider_current_trx, direct_sql->tgt_default_group, MYF(0));
+  }
+  if (direct_sql->tgt_dsn)
+  {
+    spider_free(spider_current_trx, direct_sql->tgt_dsn, MYF(0));
+  }
+  if (direct_sql->conn_key)
+  {
+    spider_free(spider_current_trx, direct_sql->conn_key, MYF(0));
+  }
+  if (direct_sql->db_names)
+  {
+    spider_free(spider_current_trx, direct_sql->db_names, MYF(0));
+  }
+  spider_free(spider_current_trx, direct_sql, MYF(0));
+  DBUG_VOID_RETURN;
+}
+
+long long spider_direct_sql_body(
+  UDF_INIT *initid,
+  UDF_ARGS *args,
+  char *is_null,
+  char *error,
+  my_bool bg
+) {
+  int error_num, roop_count;
+  SPIDER_DIRECT_SQL *direct_sql = NULL, *tmp_direct_sql;
+  THD *thd = current_thd;
+  SPIDER_TRX *trx;
+  SPIDER_CONN *conn;
+  char *sql;
+  TABLE_LIST table_list;
+  SPIDER_BG_DIRECT_SQL *bg_direct_sql;
+#if MYSQL_VERSION_ID < 50500
+#else
+  TABLE_LIST *real_table_list_last = NULL;
+  uint use_real_table = 0;
+#endif
+  DBUG_ENTER("spider_direct_sql_body");
+  SPIDER_BACKUP_DASTATUS;
+  if (!(direct_sql = (SPIDER_DIRECT_SQL *)
+    spider_bulk_malloc(spider_current_trx, 34, MYF(MY_WME | MY_ZEROFILL),
+      &direct_sql, (uint) (sizeof(SPIDER_DIRECT_SQL)),
+      &sql, (uint) (sizeof(char) * args->lengths[0]),
+      NullS))
+  ) {
+    error_num = HA_ERR_OUT_OF_MEM;
+    my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+    goto error;
+  }
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  if (bg)
+  {
+    bg_direct_sql = (SPIDER_BG_DIRECT_SQL *) initid->ptr;
+    pthread_mutex_lock(&bg_direct_sql->bg_mutex);
+    tmp_direct_sql = (SPIDER_DIRECT_SQL *) bg_direct_sql->direct_sql;
+    bg_direct_sql->direct_sql = direct_sql;
+    if (tmp_direct_sql)
+    {
+      tmp_direct_sql->prev = direct_sql;
+      direct_sql->next = tmp_direct_sql;
+    }
+    pthread_mutex_unlock(&bg_direct_sql->bg_mutex);
+    direct_sql->bg_mutex = &bg_direct_sql->bg_mutex;
+    direct_sql->bg_cond = &bg_direct_sql->bg_cond;
+    direct_sql->parent = bg_direct_sql;
+    bg_direct_sql->called_cnt++;
+  }
+#endif
+  if (!(trx = spider_get_trx(thd, TRUE, &error_num)))
+  {
+    if (error_num == HA_ERR_OUT_OF_MEM)
+      my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+    goto error;
+  }
+  direct_sql->trx = trx;
+
+  if (args->args[1])
+  {
+    if ((error_num = spider_udf_direct_sql_create_table_list(
+      direct_sql,
+      args->args[1],
+      args->lengths[1]
+    ))) {
+      if (error_num == HA_ERR_OUT_OF_MEM)
+        my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+      goto error;
+    }
+  } else {
+    if ((error_num = spider_udf_direct_sql_create_table_list(
+      direct_sql,
+      (char *) "",
+      0
+    ))) {
+      if (error_num == HA_ERR_OUT_OF_MEM)
+        my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+      goto error;
+    }
+  }
+  if (args->args[2])
+  {
+    if ((error_num = spider_udf_parse_direct_sql_param(
+      trx,
+      direct_sql,
+      args->args[2],
+      args->lengths[2]
+    ))) {
+      goto error;
+    }
+  } else {
+    if ((error_num = spider_udf_parse_direct_sql_param(
+      trx,
+      direct_sql,
+      "",
+      0
+    ))) {
+      goto error;
+    }
+  }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (trx->trx_start && direct_sql->access_mode != 1)
+  {
+#endif
+    trx->updated_in_this_trx = TRUE;
+    DBUG_PRINT("info",("spider trx->updated_in_this_trx=TRUE"));
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  }
+#endif
+#if MYSQL_VERSION_ID < 50500
+#else
+  use_real_table = spider_param_udf_ds_use_real_table(thd,
+    direct_sql->use_real_table);
+#endif
+  for (roop_count = 0; roop_count < direct_sql->table_count; roop_count++)
+  {
+#ifdef SPIDER_NEED_INIT_ONE_TABLE_FOR_FIND_TEMPORARY_TABLE
+#ifdef SPIDER_use_LEX_CSTRING_for_database_tablename_alias
+    LEX_CSTRING db_name =
+    {
+      direct_sql->db_names[roop_count],
+      strlen(direct_sql->db_names[roop_count])
+    };
+    LEX_CSTRING tbl_name =
+    {
+      direct_sql->table_names[roop_count],
+      strlen(direct_sql->table_names[roop_count])
+    };
+    table_list.init_one_table(&db_name, &tbl_name, 0, TL_WRITE);
+#else
+    table_list.init_one_table(direct_sql->db_names[roop_count],
+      strlen(direct_sql->db_names[roop_count]),
+      direct_sql->table_names[roop_count],
+      strlen(direct_sql->table_names[roop_count]),
+      direct_sql->table_names[roop_count], TL_WRITE);
+#endif
+#else
+    SPIDER_TABLE_LIST_db_str(&table_list) = direct_sql->db_names[roop_count];
+    SPIDER_TABLE_LIST_table_name_str(&table_list) =
+      direct_sql->table_names[roop_count];
+#endif
+    if (!(direct_sql->tables[roop_count] =
+      spider_find_temporary_table(thd, &table_list)))
+    {
+#if MYSQL_VERSION_ID < 50500
+#else
+      if (!use_real_table)
+      {
+#endif
+        error_num = ER_SPIDER_UDF_TMP_TABLE_NOT_FOUND_NUM;
+        my_printf_error(ER_SPIDER_UDF_TMP_TABLE_NOT_FOUND_NUM,
+          ER_SPIDER_UDF_TMP_TABLE_NOT_FOUND_STR,
+          MYF(0), SPIDER_TABLE_LIST_db_str(&table_list),
+          SPIDER_TABLE_LIST_table_name_str(&table_list));
+        goto error;
+#if MYSQL_VERSION_ID < 50500
+#else
+      }
+      TABLE_LIST *tables = &direct_sql->table_list[roop_count];
+#ifdef SPIDER_use_LEX_CSTRING_for_database_tablename_alias
+      table_list.init_one_table(
+        &table_list.db, &table_list.table_name, 0, TL_WRITE);
+#else
+      tables->init_one_table(
+        SPIDER_TABLE_LIST_db_str(&table_list),
+        SPIDER_TABLE_LIST_db_length(&table_list),
+        SPIDER_TABLE_LIST_table_name_str(&table_list),
+        SPIDER_TABLE_LIST_table_name_length(&table_list),
+        SPIDER_TABLE_LIST_table_name_str(&table_list), TL_WRITE);
+#endif
+      MDL_REQUEST_INIT(&tables->mdl_request, MDL_key::TABLE,
+        SPIDER_TABLE_LIST_db_str(&table_list),
+        SPIDER_TABLE_LIST_table_name_str(&table_list),
+        MDL_SHARED_WRITE, MDL_TRANSACTION);
+      if (!direct_sql->table_list_first)
+      {
+        direct_sql->table_list_first = tables;
+      } else {
+        real_table_list_last->next_global = tables;
+      }
+      real_table_list_last = tables;
+      spider_set_bit(direct_sql->real_table_bitmap, roop_count);
+      direct_sql->real_table_used = TRUE;
+#endif
+    }
+  }
+  if ((error_num = spider_udf_direct_sql_create_conn_key(direct_sql)))
+  {
+    if (error_num == HA_ERR_OUT_OF_MEM)
+      my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+    goto error;
+  }
+  if (!(conn = spider_udf_direct_sql_get_conn(direct_sql, trx, &error_num)))
+  {
+    if (error_num == HA_ERR_OUT_OF_MEM)
+      my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+    goto error;
+  }
+  conn->error_mode = 0;
+  direct_sql->conn = conn;
+  if ((error_num = spider_db_udf_check_and_set_set_names(trx)))
+  {
+    if (error_num == HA_ERR_OUT_OF_MEM)
+      my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+    goto error;
+  }
+  if (args->args[0])
+  {
+    direct_sql->sql_length = args->lengths[0];
+    memcpy(sql, args->args[0], direct_sql->sql_length);
+  } else
+    direct_sql->sql_length = 0;
+  direct_sql->sql = sql;
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  if (bg)
+  {
+    if ((error_num = spider_udf_bg_direct_sql(direct_sql)))
+    {
+      if (error_num == HA_ERR_OUT_OF_MEM)
+        my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+      goto error;
+    }
+  } else {
+#endif
+    if (conn->bg_init)
+      pthread_mutex_lock(&conn->bg_conn_mutex);
+    if ((error_num = spider_db_udf_direct_sql(direct_sql)))
+    {
+      if (conn->bg_init)
+        pthread_mutex_unlock(&conn->bg_conn_mutex);
+      if (direct_sql->modified_non_trans_table)
+        thd->transaction->stmt.modified_non_trans_table = TRUE;
+      if (error_num == HA_ERR_OUT_OF_MEM)
+        my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+      goto error;
+    }
+    if (conn->bg_init)
+      pthread_mutex_unlock(&conn->bg_conn_mutex);
+    if (direct_sql->modified_non_trans_table)
+      thd->transaction->stmt.modified_non_trans_table = TRUE;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  }
+  if (!bg)
+  {
+#endif
+    spider_udf_free_direct_sql_alloc(direct_sql, FALSE);
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  }
+#endif
+  DBUG_RETURN(1);
+
+error:
+  if (direct_sql)
+  {
+    if (
+      direct_sql->error_rw_mode &&
+      spider_db_conn_is_network_error(error_num)
+    ) {
+      SPIDER_RESTORE_DASTATUS;
+      spider_udf_free_direct_sql_alloc(direct_sql, bg);
+      DBUG_RETURN(1);
+    }
+    spider_udf_free_direct_sql_alloc(direct_sql, bg);
+  }
+  *error = 1;
+  DBUG_RETURN(0);
+}
+
+my_bool spider_direct_sql_init_body(
+  UDF_INIT *initid,
+  UDF_ARGS *args,
+  char *message,
+  my_bool bg
+) {
+  SPIDER_BG_DIRECT_SQL *bg_direct_sql;
+  DBUG_ENTER("spider_direct_sql_init_body");
+  if (args->arg_count != 3)
+  {
+    strcpy(message, "spider_(bg)_direct_sql() requires 3 arguments");
+    goto error;
+  }
+  if (
+    args->arg_type[0] != STRING_RESULT ||
+    args->arg_type[1] != STRING_RESULT ||
+    args->arg_type[2] != STRING_RESULT
+  ) {
+    strcpy(message, "spider_(bg)_direct_sql() requires string arguments");
+    goto error;
+  }
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  if (bg)
+  {
+    if (!(bg_direct_sql = (SPIDER_BG_DIRECT_SQL *)
+      spider_malloc(spider_current_trx, 10, sizeof(SPIDER_BG_DIRECT_SQL),
+      MYF(MY_WME | MY_ZEROFILL)))
+    ) {
+      strcpy(message, "spider_bg_direct_sql() out of memory");
+      goto error;
+    }
+#if MYSQL_VERSION_ID < 50500
+    if (pthread_mutex_init(&bg_direct_sql->bg_mutex, MY_MUTEX_INIT_FAST))
+#else
+    if (mysql_mutex_init(spd_key_mutex_bg_direct_sql,
+      &bg_direct_sql->bg_mutex, MY_MUTEX_INIT_FAST))
+#endif
+    {
+      strcpy(message, "spider_bg_direct_sql() out of memory");
+      goto error_mutex_init;
+    }
+#if MYSQL_VERSION_ID < 50500
+    if (pthread_cond_init(&bg_direct_sql->bg_cond, NULL))
+#else
+    if (mysql_cond_init(spd_key_cond_bg_direct_sql,
+      &bg_direct_sql->bg_cond, NULL))
+#endif
+    {
+      strcpy(message, "spider_bg_direct_sql() out of memory");
+      goto error_cond_init;
+    }
+    initid->ptr = (char *) bg_direct_sql;
+  }
+#endif
+  DBUG_RETURN(FALSE);
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+error_cond_init:
+  pthread_mutex_destroy(&bg_direct_sql->bg_mutex);
+error_mutex_init:
+  spider_free(spider_current_trx, bg_direct_sql, MYF(0));
+#endif
+error:
+  DBUG_RETURN(TRUE);
+}
+
+void spider_direct_sql_deinit_body(
+  UDF_INIT *initid
+) {
+  SPIDER_BG_DIRECT_SQL *bg_direct_sql = (SPIDER_BG_DIRECT_SQL *) initid->ptr;
+  DBUG_ENTER("spider_direct_sql_deinit_body");
+  if (bg_direct_sql)
+  {
+    pthread_mutex_lock(&bg_direct_sql->bg_mutex);
+    while (bg_direct_sql->direct_sql)
+      pthread_cond_wait(&bg_direct_sql->bg_cond, &bg_direct_sql->bg_mutex);
+    pthread_mutex_unlock(&bg_direct_sql->bg_mutex);
+    if (bg_direct_sql->modified_non_trans_table)
+    {
+      THD *thd = current_thd;
+      thd->transaction->stmt.modified_non_trans_table = TRUE;
+    }
+    pthread_cond_destroy(&bg_direct_sql->bg_cond);
+    pthread_mutex_destroy(&bg_direct_sql->bg_mutex);
+    spider_free(spider_current_trx, bg_direct_sql, MYF(0));
+  }
+  DBUG_VOID_RETURN;
+}
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+void spider_direct_sql_bg_start(
+  UDF_INIT *initid
+) {
+  SPIDER_BG_DIRECT_SQL *bg_direct_sql = (SPIDER_BG_DIRECT_SQL *) initid->ptr;
+  DBUG_ENTER("spider_direct_sql_bg_start");
+  bg_direct_sql->called_cnt = 0;
+  bg_direct_sql->bg_error = 0;
+  DBUG_VOID_RETURN;
+}
+
+long long spider_direct_sql_bg_end(
+  UDF_INIT *initid
+) {
+  THD *thd = current_thd;
+  SPIDER_BG_DIRECT_SQL *bg_direct_sql = (SPIDER_BG_DIRECT_SQL *) initid->ptr;
+  DBUG_ENTER("spider_direct_sql_bg_end");
+  pthread_mutex_lock(&bg_direct_sql->bg_mutex);
+  while (bg_direct_sql->direct_sql)
+    pthread_cond_wait(&bg_direct_sql->bg_cond, &bg_direct_sql->bg_mutex);
+  pthread_mutex_unlock(&bg_direct_sql->bg_mutex);
+  if (bg_direct_sql->modified_non_trans_table)
+    thd->transaction->stmt.modified_non_trans_table = TRUE;
+  if (bg_direct_sql->bg_error)
+  {
+    my_message(bg_direct_sql->bg_error, bg_direct_sql->bg_error_msg, MYF(0));
+    DBUG_RETURN(0);
+  }
+  DBUG_RETURN(bg_direct_sql->called_cnt);
+}
+
+int spider_udf_bg_direct_sql(
+  SPIDER_DIRECT_SQL *direct_sql
+) {
+  int error_num;
+  SPIDER_CONN *conn = direct_sql->conn;
+  DBUG_ENTER("spider_udf_bg_direct_sql");
+  if ((error_num = spider_create_conn_thread(conn)))
+    DBUG_RETURN(error_num);
+  if (!pthread_mutex_trylock(&conn->bg_conn_mutex))
+  {
+    DBUG_PRINT("info",("spider get bg_conn_mutex"));
+    conn->bg_target = direct_sql;
+    conn->bg_direct_sql = TRUE;
+    conn->bg_caller_sync_wait = TRUE;
+    pthread_mutex_lock(&conn->bg_conn_sync_mutex);
+    pthread_cond_signal(&conn->bg_conn_cond);
+    pthread_mutex_unlock(&conn->bg_conn_mutex);
+    pthread_cond_wait(&conn->bg_conn_sync_cond, &conn->bg_conn_sync_mutex);
+    pthread_mutex_unlock(&conn->bg_conn_sync_mutex);
+    conn->bg_caller_sync_wait = FALSE;
+  } else {
+    DBUG_PRINT("info",("spider get put job stack"));
+    bool bg_get_job_stack = FALSE;
+    pthread_mutex_lock(&conn->bg_job_stack_mutex);
+    uint old_elements = conn->bg_job_stack.max_element;
+    if (insert_dynamic(&conn->bg_job_stack, (uchar *) &direct_sql))
+    {
+      pthread_mutex_unlock(&conn->bg_job_stack_mutex);
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    if (conn->bg_job_stack.max_element > old_elements)
+    {
+      spider_alloc_calc_mem(spider_current_trx,
+        conn->bg_job_stack,
+        (conn->bg_job_stack.max_element - old_elements) *
+        conn->bg_job_stack.size_of_element);
+    }
+    if (!conn->bg_get_job_stack_off)
+      bg_get_job_stack = TRUE;
+    pthread_mutex_unlock(&conn->bg_job_stack_mutex);
+    if (bg_get_job_stack)
+    {
+      DBUG_PRINT("info",("spider get bg_conn_mutex"));
+      pthread_mutex_lock(&conn->bg_conn_mutex);
+      conn->bg_target = NULL;
+      conn->bg_get_job_stack = TRUE;
+      conn->bg_direct_sql = TRUE;
+      conn->bg_caller_sync_wait = TRUE;
+      pthread_mutex_lock(&conn->bg_conn_sync_mutex);
+      pthread_cond_signal(&conn->bg_conn_cond);
+      pthread_mutex_unlock(&conn->bg_conn_mutex);
+      pthread_cond_wait(&conn->bg_conn_sync_cond, &conn->bg_conn_sync_mutex);
+      pthread_mutex_unlock(&conn->bg_conn_sync_mutex);
+      conn->bg_caller_sync_wait = FALSE;
+    }
+  }
+  DBUG_RETURN(0);
+}
+#endif
diff --git a/storage/spider/spd_direct_sql.h b/storage/spider/spd_direct_sql.h
new file mode 100644
index 00000000..bf3e24ca
--- /dev/null
+++ b/storage/spider/spd_direct_sql.h
@@ -0,0 +1,67 @@
+/* Copyright (C) 2009-2014 Kentoku Shiba
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+uint spider_udf_calc_hash(
+  char *key,
+  uint mod
+);
+
+int spider_udf_direct_sql_create_table_list(
+  SPIDER_DIRECT_SQL *direct_sql,
+  char *table_name_list,
+  uint table_name_list_length
+);
+
+int spider_udf_direct_sql_create_conn_key(
+  SPIDER_DIRECT_SQL *direct_sql
+);
+
+SPIDER_CONN *spider_udf_direct_sql_create_conn(
+  const SPIDER_DIRECT_SQL *direct_sql,
+  int *error_num
+);
+
+SPIDER_CONN *spider_udf_direct_sql_get_conn(
+  const SPIDER_DIRECT_SQL *direct_sql,
+  SPIDER_TRX *trx,
+  int *error_num
+);
+
+int spider_udf_direct_sql_get_server(
+  SPIDER_DIRECT_SQL *direct_sql
+);
+
+int spider_udf_parse_direct_sql_param(
+  SPIDER_TRX *trx,
+  SPIDER_DIRECT_SQL *direct_sql,
+  const char *param,
+  int param_length
+);
+
+int spider_udf_set_direct_sql_param_default(
+  SPIDER_TRX *trx,
+  SPIDER_DIRECT_SQL *direct_sql
+);
+
+void spider_udf_free_direct_sql_alloc(
+  SPIDER_DIRECT_SQL *direct_sql,
+  my_bool bg
+);
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+int spider_udf_bg_direct_sql(
+  SPIDER_DIRECT_SQL *direct_sql
+);
+#endif
diff --git a/storage/spider/spd_environ.h b/storage/spider/spd_environ.h
new file mode 100644
index 00000000..320b0ede
--- /dev/null
+++ b/storage/spider/spd_environ.h
@@ -0,0 +1,61 @@
+/* Copyright (C) 2008-2020 Kentoku Shiba
+   Copyright (C) 2017-2020 MariaDB corp
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
+
+/*
+  Define functionality offered by MySQL or MariaDB
+*/
+
+#ifndef SPD_ENVIRON_INCLUDED
+
+#if (defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100000)
+#define SPIDER_HANDLER_START_BULK_INSERT_HAS_FLAGS
+#endif
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100100
+#define SPIDER_SUPPORT_CREATE_OR_REPLACE_TABLE
+#define SPIDER_NET_HAS_THD
+#endif
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100211
+#define HANDLER_HAS_TOP_TABLE_FIELDS
+#define HANDLER_HAS_DIRECT_UPDATE_ROWS
+#define HANDLER_HAS_DIRECT_AGGREGATE
+#define PARTITION_HAS_GET_CHILD_HANDLERS
+#define PARTITION_HAS_GET_PART_SPEC
+#define HA_EXTRA_HAS_STARTING_ORDERED_INDEX_SCAN
+#define HANDLER_HAS_NEED_INFO_FOR_AUTO_INC
+#define HANDLER_HAS_CAN_USE_FOR_AUTO_INC_INIT
+#endif
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100300
+#define SPIDER_UPDATE_ROW_HAS_CONST_NEW_DATA
+#endif
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100309
+#define SPIDER_MDEV_16246
+#endif
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100400
+#define SPIDER_USE_CONST_ITEM_FOR_STRING_INT_REAL_DECIMAL_DATE_ITEM
+#define SPIDER_SQL_CACHE_IS_IN_LEX
+#define SPIDER_LIKE_FUNC_HAS_GET_NEGATED
+#define HA_HAS_CHECKSUM_EXTENDED
+#endif
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100500
+#define SPIDER_I_S_USE_SHOW_FOR_COLUMN
+#endif
+#endif /* SPD_ENVIRON_INCLUDED */
diff --git a/storage/spider/spd_err.h b/storage/spider/spd_err.h
new file mode 100644
index 00000000..60b2a084
--- /dev/null
+++ b/storage/spider/spd_err.h
@@ -0,0 +1,141 @@
+/* Copyright (C) 2008-2020 Kentoku Shiba
+   Copyright (C) 2019-2020 MariaDB corp
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+#define ER_SPIDER_INVALID_CONNECT_INFO_NUM 12501
+#define ER_SPIDER_INVALID_CONNECT_INFO_STR "The connect info '%-.64s' is invalid"
+#define ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_NUM 12502
+#define ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_STR "The connect info '%-.64s' for %s is too long"
+#define ER_SPIDER_INVALID_UDF_PARAM_NUM 12503
+#define ER_SPIDER_INVALID_UDF_PARAM_STR "The UDF parameter '%-.64s' is invalid"
+#define ER_SPIDER_DIFFERENT_LINK_COUNT_NUM 12504
+#define ER_SPIDER_DIFFERENT_LINK_COUNT_STR "Different multiple table link parameter's count"
+#define ER_SPIDER_UDF_PARAM_TOO_LONG_NUM 12505
+#define ER_SPIDER_UDF_PARAM_TOO_LONG_STR "The UDF parameter '%-.64s' is too long"
+#define ER_SPIDER_UDF_PARAM_REQIRED_NUM 12506
+#define ER_SPIDER_UDF_PARAM_REQIRED_STR "The UDF parameter '%-.64s' is required"
+#define ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_NUM 12507
+#define ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_STR "This UDF can't execute if other tables are opened"
+#define ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_STR_WITH_NUM "This UDF can't execute if other tables are opened '%s'=%lld"
+#define ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_STR_WITH_PTR "This UDF can't execute if other tables are opened '%s'=%p"
+#define ER_SPIDER_UDF_PING_TABLE_NO_SERVER_ID_NUM 12508
+#define ER_SPIDER_UDF_PING_TABLE_NO_SERVER_ID_STR "Current server_id is not exist"
+#define ER_SPIDER_UDF_PING_TABLE_DIFFERENT_MON_NUM 12509
+#define ER_SPIDER_UDF_PING_TABLE_DIFFERENT_MON_STR "Monitor count is different"
+#define ER_SPIDER_LINK_MON_OK_NUM 12510
+#define ER_SPIDER_LINK_MON_OK_STR "Table '%s.%s' get a problem, but mon is OK"
+#define ER_SPIDER_LINK_MON_NG_NUM 12511
+#define ER_SPIDER_LINK_MON_NG_STR "Table '%s.%s' get a problem"
+#define ER_SPIDER_LINK_MON_DRAW_FEW_MON_NUM 12512
+#define ER_SPIDER_LINK_MON_DRAW_FEW_MON_STR "Can not judge by enough monitor for table '%s.%s'"
+#define ER_SPIDER_LINK_MON_DRAW_NUM 12513
+#define ER_SPIDER_LINK_MON_DRAW_STR "Can not judge status for table '%s.%s'"
+#define ER_SPIDER_ALL_LINKS_FAILED_NUM 12514
+#define ER_SPIDER_ALL_LINKS_FAILED_STR "All links of '%s.%s' are failed"
+#define ER_SPIDER_TMP_TABLE_MON_NUM 12515
+#define ER_SPIDER_TMP_TABLE_MON_STR "Can't use monitor by temporary table"
+#define ER_SPIDER_MON_AT_ALTER_TABLE_NUM 12516
+#define ER_SPIDER_MON_AT_ALTER_TABLE_STR "Got an error in alter or drop table"
+#define ER_SPIDER_BLANK_UDF_ARGUMENT_NUM 12517
+#define ER_SPIDER_BLANK_UDF_ARGUMENT_STR "The UDF no.%d argument can't be blank"
+#define ER_SPIDER_READ_ONLY_NUM 12518
+#define ER_SPIDER_READ_ONLY_STR "Table '%s.%s' is read only"
+#define ER_SPIDER_LINK_IS_FAILOVER_NUM 12519
+#define ER_SPIDER_LINK_IS_FAILOVER_STR "A link is fail-overed"
+#define ER_SPIDER_AUTOINC_VAL_IS_DIFFERENT_NUM 12520
+#define ER_SPIDER_AUTOINC_VAL_IS_DIFFERENT_STR "Binlog's auto-inc value is probably different from linked table's auto-inc value"
+#define ER_SPIDER_SQL_WRAPPER_IS_INVALID_NUM 12521
+#define ER_SPIDER_SQL_WRAPPER_IS_INVALID_STR "Can't use wrapper '%s' for SQL connection"
+#define ER_SPIDER_NOSQL_WRAPPER_IS_INVALID_NUM 12522
+#define ER_SPIDER_NOSQL_WRAPPER_IS_INVALID_STR "Can't use wrapper '%s' for NOSQL connection"
+#define ER_SPIDER_REQUEST_KEY_NUM 12523
+#define ER_SPIDER_REQUEST_KEY_STR "Request key not found"
+#define ER_SPIDER_CANT_OPEN_SYS_TABLE_NUM 12524
+#define ER_SPIDER_CANT_OPEN_SYS_TABLE_STR "Can't open system table %s.%s"
+#define ER_SPIDER_LINK_MON_JUST_NG_NUM 12525
+#define ER_SPIDER_LINK_MON_JUST_NG_STR "Table '%s.%s' just got a problem"
+#define ER_SPIDER_INVALID_CONNECT_INFO_START_WITH_NUM_NUM 12526
+#define ER_SPIDER_INVALID_CONNECT_INFO_START_WITH_NUM_STR "The connect info '%-.64s' for %s cannot start with number"
+#define ER_SPIDER_INVALID_CONNECT_INFO_SAME_NUM 12527
+#define ER_SPIDER_INVALID_CONNECT_INFO_SAME_STR "The connect info '%-.64s' for %s cannot use same name in same table"
+
+#define ER_SPIDER_CANT_USE_BOTH_INNER_XA_AND_SNAPSHOT_NUM 12601
+#define ER_SPIDER_CANT_USE_BOTH_INNER_XA_AND_SNAPSHOT_STR "Can't use both spider_use_consistent_snapshot = 1 and spider_internal_xa = 1"
+#define ER_SPIDER_XA_LOCKED_NUM 12602
+#define ER_SPIDER_XA_LOCKED_STR "This xid is now locked"
+#define ER_SPIDER_XA_NOT_PREPARED_NUM 12603
+#define ER_SPIDER_XA_NOT_PREPARED_STR "This xid is not prepared"
+#define ER_SPIDER_XA_PREPARED_NUM 12604
+#define ER_SPIDER_XA_PREPARED_STR "This xid is prepared"
+#define ER_SPIDER_XA_EXISTS_NUM 12605
+#define ER_SPIDER_XA_EXISTS_STR "This xid is already exist"
+#define ER_SPIDER_XA_MEMBER_EXISTS_NUM 12606
+#define ER_SPIDER_XA_MEMBER_EXISTS_STR "This xid member is already exist"
+#define ER_SPIDER_XA_NOT_EXISTS_NUM 12607
+#define ER_SPIDER_XA_NOT_EXISTS_STR "This xid is not exist"
+#define ER_SPIDER_XA_MEMBER_NOT_EXISTS_NUM 12608
+#define ER_SPIDER_XA_MEMBER_NOT_EXISTS_STR "This xid member is not exist"
+#define ER_SPIDER_SYS_TABLE_VERSION_NUM 12609
+#define ER_SPIDER_SYS_TABLE_VERSION_STR "System table %s is different version"
+#define ER_SPIDER_WRONG_CHARACTER_IN_NAME_NUM 12611
+#define ER_SPIDER_WRONG_CHARACTER_IN_NAME_STR "Wrong character in name string"
+#define ER_SPIDER_LOW_MEM_READ_PREV_NUM 12621
+#define ER_SPIDER_LOW_MEM_READ_PREV_STR "Can't use this operation at low mem read mode"
+#define ER_SPIDER_ALTER_BEFORE_UNLOCK_NUM 12622
+#define ER_SPIDER_ALTER_BEFORE_UNLOCK_STR "Can't use this operation before executing 'unlock tables'"
+#define ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM 12701
+#define ER_SPIDER_REMOTE_SERVER_GONE_AWAY_STR "Remote MySQL server has gone away"
+#define ER_SPIDER_REMOTE_SERVER_GONE_AWAY_LEN (sizeof(ER_SPIDER_REMOTE_SERVER_GONE_AWAY_STR) - 1)
+#define ER_SPIDER_REMOTE_TABLE_NOT_FOUND_NUM 12702
+#define ER_SPIDER_REMOTE_TABLE_NOT_FOUND_STR "Remote table '%s.%s' is not found"
+#define ER_SPIDER_UDF_TMP_TABLE_NOT_FOUND_NUM 12703
+#define ER_SPIDER_UDF_TMP_TABLE_NOT_FOUND_STR "Temporary table '%s.%s' is not found"
+#define ER_SPIDER_UDF_COPY_TABLE_SRC_NOT_FOUND_NUM 12704
+#define ER_SPIDER_UDF_COPY_TABLE_SRC_NOT_FOUND_STR "Source table is not found"
+#define ER_SPIDER_UDF_COPY_TABLE_DST_NOT_FOUND_NUM 12705
+#define ER_SPIDER_UDF_COPY_TABLE_DST_NOT_FOUND_STR "Destination table is not found"
+#define ER_SPIDER_UDF_COPY_TABLE_SRC_NG_STATUS_NUM 12706
+#define ER_SPIDER_UDF_COPY_TABLE_SRC_NG_STATUS_STR "Source table is NG status"
+#define ER_SPIDER_UDF_COPY_TABLE_DST_NG_STATUS_NUM 12707
+#define ER_SPIDER_UDF_COPY_TABLE_DST_NG_STATUS_STR "Destination table is NG status"
+#define ER_SPIDER_UDF_CANT_OPEN_TABLE_NUM 12708
+#define ER_SPIDER_UDF_CANT_OPEN_TABLE_STR "Can't open table %s.%s"
+#define ER_SPIDER_UDF_COPY_TABLE_NEED_PK_NUM 12709
+#define ER_SPIDER_UDF_COPY_TABLE_NEED_PK_STR "Table %s.%s needs PK for copying"
+#define ER_SPIDER_INVALID_REMOTE_TABLE_INFO_NUM 12710
+#define ER_SPIDER_INVALID_REMOTE_TABLE_INFO_STR "Invalid information from remote table '%s.%s'"
+#define ER_SPIDER_HS_STR "Error from HS %d %s"
+#define ER_SPIDER_HS_NUM 12711
+#define ER_SPIDER_ORACLE_STR "Error from Oracle %d %d %s"
+#define ER_SPIDER_ORACLE_NUM 12712
+#define ER_SPIDER_ORACLE_ERR "Oracle error"
+#define ER_SPIDER_DATASOURCE_STR "Error from %s %d %s %s"
+#define ER_SPIDER_DATASOURCE_NUM 12712
+#define ER_SPIDER_CON_COUNT_ERROR 12713
+#define ER_SPIDER_CON_COUNT_ERROR_STR "Too many connections between spider and remote"
+#define ER_SPIDER_TABLE_OPEN_TIMEOUT_NUM 12714
+#define ER_SPIDER_TABLE_OPEN_TIMEOUT_STR "Table %s.%s open timeout"
+#define ER_SPIDER_INFINITE_LOOP_NUM 12719
+#define ER_SPIDER_INFINITE_LOOP_STR "An infinite loop is detected when opening table %s.%s"
+#define ER_SPIDER_SAME_SERVER_LINK_NUM 12720
+#define ER_SPIDER_SAME_SERVER_LINK_STR1 "Host:%s and Socket:%s aim self server. Please change spider_same_server_link parameter if this link is required."
+#define ER_SPIDER_SAME_SERVER_LINK_STR2 "Host:%s and Port:%ld aim self server. Please change spider_same_server_link parameter if this link is required."
+#define ER_SPIDER_CANT_NUM 12721
+#define ER_SPIDER_CANT_STR1 "Can't %s%d"
+#define ER_SPIDER_COND_SKIP_NUM 12801
+
+#define ER_SPIDER_UNKNOWN_NUM 12500
+#define ER_SPIDER_UNKNOWN_STR "unknown"
+#define ER_SPIDER_UNKNOWN_LEN (sizeof(ER_SPIDER_UNKNOWN_STR) - 1)
diff --git a/storage/spider/spd_group_by_handler.cc b/storage/spider/spd_group_by_handler.cc
new file mode 100644
index 00000000..30d81b5a
--- /dev/null
+++ b/storage/spider/spd_group_by_handler.cc
@@ -0,0 +1,2144 @@
+/* Copyright (C) 2008-2019 Kentoku Shiba
+   Copyright (C) 2019 MariaDB corp
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
+
+#define MYSQL_SERVER 1
+#include <my_global.h>
+#include "mysql_version.h"
+#include "spd_environ.h"
+#if MYSQL_VERSION_ID < 50500
+#include "mysql_priv.h"
+#include <mysql/plugin.h>
+#else
+#include "sql_priv.h"
+#include "probes_mysql.h"
+#include "sql_class.h"
+#include "sql_partition.h"
+#include "ha_partition.h"
+#endif
+#include "sql_common.h"
+#include <errmsg.h>
+#include "spd_err.h"
+#include "spd_param.h"
+#include "spd_db_include.h"
+#include "spd_include.h"
+#include "ha_spider.h"
+#include "spd_conn.h"
+#include "spd_db_conn.h"
+#include "spd_malloc.h"
+#include "spd_table.h"
+#include "spd_ping_table.h"
+#include "spd_group_by_handler.h"
+
+extern handlerton *spider_hton_ptr;
+extern SPIDER_DBTON spider_dbton[SPIDER_DBTON_SIZE];
+
+spider_fields::spider_fields() :
+  dbton_count(0), current_dbton_num(0),
+  table_count(0), current_table_num(0), table_holder(NULL),
+  first_link_idx_chain(NULL), last_link_idx_chain(NULL), current_link_idx_chain(NULL),
+  first_conn_holder(NULL), last_conn_holder(NULL), current_conn_holder(NULL),
+  first_field_holder(NULL), last_field_holder(NULL), current_field_holder(NULL),
+  first_field_chain(NULL), last_field_chain(NULL), current_field_chain(NULL)
+{
+  DBUG_ENTER("spider_fields::spider_fields");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_VOID_RETURN;
+}
+
+spider_fields::~spider_fields()
+{
+  DBUG_ENTER("spider_fields::~spider_fields");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (first_link_idx_chain)
+  {
+    while ((current_link_idx_chain = first_link_idx_chain))
+    {
+      first_link_idx_chain = current_link_idx_chain->next;
+      spider_free(spider_current_trx, current_link_idx_chain, MYF(0));
+    }
+  }
+  if (first_field_chain)
+  {
+    while ((current_field_chain = first_field_chain))
+    {
+      first_field_chain = current_field_chain->next;
+      spider_free(spider_current_trx, current_field_chain, MYF(0));
+    }
+  }
+  if (first_field_holder)
+  {
+    while ((current_field_holder = first_field_holder))
+    {
+      first_field_holder = current_field_holder->next;
+      spider_free(spider_current_trx, current_field_holder, MYF(0));
+    }
+  }
+  if (table_holder)
+    spider_free(spider_current_trx, table_holder, MYF(0));
+  if (first_conn_holder)
+  {
+    while ((current_conn_holder = first_conn_holder))
+    {
+      first_conn_holder = current_conn_holder->next;
+      free_conn_holder(current_conn_holder);
+    }
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_fields::add_dbton_id(
+  uint dbton_id_arg
+) {
+  uint roop_count;
+  DBUG_ENTER("spider_fields::add_dbton_id");
+  DBUG_PRINT("info",("spider this=%p", this));
+  for (roop_count = 0; roop_count < dbton_count; ++roop_count)
+  {
+    if (dbton_ids[roop_count] == dbton_id_arg)
+    {
+      DBUG_VOID_RETURN;
+    }
+  }
+  dbton_ids[roop_count] = dbton_id_arg;
+  ++dbton_count;
+  DBUG_VOID_RETURN;
+}
+
+void spider_fields::set_pos_to_first_dbton_id(
+) {
+  DBUG_ENTER("spider_fields::set_pos_to_first_dbton_id");
+  DBUG_PRINT("info",("spider this=%p", this));
+  current_dbton_num = 0;
+  DBUG_VOID_RETURN;
+}
+
+uint spider_fields::get_next_dbton_id(
+) {
+  uint return_dbton_id;
+  DBUG_ENTER("spider_fields::get_next_dbton_id");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (current_dbton_num >= dbton_count)
+    DBUG_RETURN(SPIDER_DBTON_SIZE);
+  return_dbton_id = dbton_ids[current_dbton_num];
+  ++current_dbton_num;
+  DBUG_RETURN(return_dbton_id);
+}
+
+int spider_fields::make_link_idx_chain(
+  int link_status
+) {
+  uint roop_count, roop_count2;
+  SPIDER_CONN *conn;
+  SPIDER_CONN_HOLDER *conn_holder;
+  SPIDER_TABLE_LINK_IDX_HOLDER *table_link_idx_holder;
+  SPIDER_LINK_IDX_HOLDER *link_idx_holder, *add_link_idx_holder,
+    *dup_link_idx_holder, *current_link_idx_holder;
+  ha_spider *spider;
+  SPIDER_LINK_IDX_CHAIN *link_idx_chain;
+  SPIDER_SHARE *share;
+  DBUG_ENTER("spider_fields::make_link_idx_chain");
+  DBUG_PRINT("info",("spider this=%p", this));
+  conn_holder = first_conn_holder;
+  bool has_remain, skip;
+  do {
+    for (roop_count2 = 0; roop_count2 < table_count; ++roop_count2)
+    {
+      table_link_idx_holder = &conn_holder->table_link_idx_holder[roop_count2];
+      link_idx_holder = table_link_idx_holder->first_link_idx_holder;
+      dup_link_idx_holder = NULL;
+      for (roop_count = 0;
+        roop_count < conn_holder->link_idx_holder_count_max - 1; ++roop_count)
+      {
+        if (!link_idx_holder->next)
+        {
+          DBUG_PRINT("info",("spider fill link_idx_holder for %u",
+            roop_count2));
+          if (!(add_link_idx_holder = create_link_idx_holder()))
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          dup_link_idx_holder = get_dup_link_idx_holder(
+            table_link_idx_holder, dup_link_idx_holder);
+          add_link_idx_holder->table_link_idx_holder =
+            dup_link_idx_holder->table_link_idx_holder;
+          add_link_idx_holder->link_idx = dup_link_idx_holder->link_idx;
+          add_link_idx_holder->link_status = dup_link_idx_holder->link_status;
+          link_idx_holder->next = add_link_idx_holder;
+        }
+        link_idx_holder = link_idx_holder->next;
+      }
+    }
+
+    for (roop_count2 = 0; roop_count2 < table_count; ++roop_count2)
+    {
+      table_link_idx_holder = &conn_holder->table_link_idx_holder[roop_count2];
+      table_link_idx_holder->current_link_idx_holder =
+        table_link_idx_holder->first_link_idx_holder;
+    }
+    for (roop_count = 0;
+      roop_count < conn_holder->link_idx_holder_count_max; ++roop_count)
+    {
+      link_idx_holder = NULL;
+      for (roop_count2 = 0; roop_count2 < table_count; ++roop_count2)
+      {
+        table_link_idx_holder =
+          &conn_holder->table_link_idx_holder[roop_count2];
+        if (link_idx_holder)
+        {
+          link_idx_holder->next_table =
+            table_link_idx_holder->current_link_idx_holder;
+        }
+        link_idx_holder = table_link_idx_holder->current_link_idx_holder;
+        table_link_idx_holder->current_link_idx_holder = link_idx_holder->next;
+      }
+    }
+  } while ((conn_holder = conn_holder->next));
+
+  current_conn_holder = first_conn_holder;
+  do {
+    table_link_idx_holder =
+      &current_conn_holder->table_link_idx_holder[0];
+    table_link_idx_holder->current_link_idx_holder =
+      table_link_idx_holder->first_link_idx_holder;
+  } while ((current_conn_holder = current_conn_holder->next));
+
+  spider = table_holder[0].spider;
+  share = spider->share;
+  DBUG_PRINT("info",("spider create link_idx_chain sorted by 0"));
+  for (
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, -1, share->link_count,
+      link_status);
+    roop_count < share->link_count;
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, roop_count, share->link_count,
+      link_status)
+  ) {
+    conn = spider->conns[roop_count];
+    if (!conn->conn_holder_for_direct_join)
+    {
+      continue;
+    }
+    table_link_idx_holder =
+      &conn->conn_holder_for_direct_join->table_link_idx_holder[0];
+    link_idx_holder = table_link_idx_holder->current_link_idx_holder;
+    table_link_idx_holder->current_link_idx_holder = link_idx_holder->next;
+    DBUG_ASSERT(link_idx_holder->link_idx == (int) roop_count);
+    if (!(link_idx_chain = create_link_idx_chain()))
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    if (!first_link_idx_chain)
+    {
+      first_link_idx_chain = link_idx_chain;
+    } else {
+      last_link_idx_chain->next = link_idx_chain;
+    }
+    last_link_idx_chain = link_idx_chain;
+    link_idx_chain->conn = conn;
+    link_idx_chain->link_idx_holder = link_idx_holder;
+    do {
+      if (link_idx_chain->link_status < link_idx_holder->link_status)
+      {
+        link_idx_chain->link_status = link_idx_holder->link_status;
+      }
+    } while ((link_idx_holder = link_idx_holder->next_table));
+  }
+
+  do {
+    has_remain = FALSE;
+    current_conn_holder = first_conn_holder;
+    do {
+      table_link_idx_holder =
+        &current_conn_holder->table_link_idx_holder[0];
+      link_idx_holder = table_link_idx_holder->current_link_idx_holder;
+      if (link_idx_holder)
+      {
+        has_remain = TRUE;
+        for (roop_count2 = 1; roop_count2 < table_count; ++roop_count2)
+        {
+          if (table_link_idx_holder[roop_count2].link_idx_holder_count ==
+            current_conn_holder->link_idx_holder_count_max)
+          {
+            break;
+          }
+        }
+        break;
+      }
+    } while ((current_conn_holder = current_conn_holder->next));
+
+    if (has_remain)
+    {
+      current_conn_holder = first_conn_holder;
+      do {
+        table_link_idx_holder =
+          &current_conn_holder->table_link_idx_holder[0];
+        link_idx_holder = table_link_idx_holder->current_link_idx_holder;
+        if (link_idx_holder)
+        {
+          for (roop_count = 1; roop_count <= roop_count2; ++roop_count)
+          {
+            link_idx_holder = link_idx_holder->next_table;
+          }
+          table_link_idx_holder[roop_count2].current_link_idx_holder =
+            link_idx_holder;
+        } else {
+          table_link_idx_holder[roop_count2].current_link_idx_holder = NULL;
+        }
+      } while ((current_conn_holder = current_conn_holder->next));
+
+      spider = table_holder[roop_count2].spider;
+      share = spider->share;
+      DBUG_PRINT("info",("spider create link_idx_chain sorted by %d",
+        roop_count2));
+      for (
+        roop_count = spider_conn_link_idx_next(share->link_statuses,
+          spider->conn_link_idx, -1, share->link_count,
+          link_status);
+        roop_count < share->link_count;
+        roop_count = spider_conn_link_idx_next(share->link_statuses,
+          spider->conn_link_idx, roop_count, share->link_count,
+          link_status)
+      ) {
+        conn = spider->conns[roop_count];
+        if (!conn->conn_holder_for_direct_join)
+        {
+          continue;
+        }
+        table_link_idx_holder =
+          &conn->conn_holder_for_direct_join->table_link_idx_holder[0];
+        link_idx_holder =
+          table_link_idx_holder[roop_count2].current_link_idx_holder;
+        skip = FALSE;
+        if (link_idx_holder)
+        {
+          current_link_idx_holder = table_link_idx_holder->first_link_idx_holder;
+          while (current_link_idx_holder != link_idx_holder)
+          {
+            if (current_link_idx_holder->link_idx ==
+              link_idx_holder->link_idx)
+            {
+              skip = TRUE;
+              break;
+            }
+            current_link_idx_holder = current_link_idx_holder->next;
+          }
+        }
+        if (skip)
+        {
+          continue;
+        }
+        DBUG_PRINT("info",("spider create link_idx_chain for %d",
+          roop_count2));
+        table_link_idx_holder[roop_count2].current_link_idx_holder =
+          link_idx_holder->next;
+        link_idx_holder =
+          table_link_idx_holder->current_link_idx_holder;
+        table_link_idx_holder->current_link_idx_holder =
+          link_idx_holder->next;
+        if (!(link_idx_chain = create_link_idx_chain()))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        DBUG_ASSERT(first_link_idx_chain);
+        last_link_idx_chain->next = link_idx_chain;
+        last_link_idx_chain = link_idx_chain;
+        link_idx_chain->conn = conn;
+        link_idx_chain->link_idx_holder = link_idx_holder;
+        do {
+          if (link_idx_chain->link_status < link_idx_holder->link_status)
+          {
+            link_idx_chain->link_status = link_idx_holder->link_status;
+          }
+        } while ((link_idx_holder = link_idx_holder->next_table));
+      }
+    }
+  } while (has_remain);
+  DBUG_RETURN(0);
+}
+
+SPIDER_LINK_IDX_CHAIN *spider_fields::create_link_idx_chain(
+) {
+  DBUG_ENTER("spider_fields::create_link_idx_chain");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN((SPIDER_LINK_IDX_CHAIN *)
+    spider_malloc(spider_current_trx, 254, sizeof(SPIDER_LINK_IDX_CHAIN),
+    MYF(MY_WME | MY_ZEROFILL)));
+}
+
+void spider_fields::set_pos_to_first_link_idx_chain(
+) {
+  DBUG_ENTER("spider_fields::set_pos_to_first_link_idx_chain");
+  DBUG_PRINT("info",("spider this=%p", this));
+  current_link_idx_chain = first_link_idx_chain;
+  DBUG_VOID_RETURN;
+}
+
+SPIDER_LINK_IDX_CHAIN *spider_fields::get_next_link_idx_chain(
+) {
+  SPIDER_LINK_IDX_CHAIN *return_link_idx_chain = current_link_idx_chain;
+  DBUG_ENTER("spider_fields::get_next_link_idx_chain");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (current_link_idx_chain)
+    current_link_idx_chain = current_link_idx_chain->next;
+  DBUG_RETURN(return_link_idx_chain);
+}
+
+SPIDER_LINK_IDX_HOLDER *spider_fields::get_dup_link_idx_holder(
+  SPIDER_TABLE_LINK_IDX_HOLDER *table_link_idx_holder,
+  SPIDER_LINK_IDX_HOLDER *current
+) {
+  SPIDER_LINK_IDX_HOLDER *return_link_idx_holder;
+  DBUG_ENTER("spider_fields::get_dup_link_idx_holder");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!current)
+  {
+    return_link_idx_holder = table_link_idx_holder->first_link_idx_holder;
+    do {
+      if (return_link_idx_holder->link_status == SPIDER_LINK_STATUS_OK)
+        break;
+    } while ((return_link_idx_holder = return_link_idx_holder->next));
+    if (!return_link_idx_holder)
+    {
+      return_link_idx_holder = table_link_idx_holder->first_link_idx_holder;
+    }
+  } else {
+    if (current->link_status == SPIDER_LINK_STATUS_OK)
+    {
+      return_link_idx_holder = current;
+      while ((return_link_idx_holder = return_link_idx_holder->next))
+      {
+        if (return_link_idx_holder->link_status == SPIDER_LINK_STATUS_OK)
+          break;
+      }
+      if (!return_link_idx_holder)
+      {
+        return_link_idx_holder = table_link_idx_holder->first_link_idx_holder;
+        do {
+          if (
+            return_link_idx_holder->link_status == SPIDER_LINK_STATUS_OK
+          )
+            break;
+          DBUG_ASSERT(return_link_idx_holder != current);
+        } while ((return_link_idx_holder = return_link_idx_holder->next));
+      }
+    } else {
+      if (!current->next)
+      {
+        return_link_idx_holder = table_link_idx_holder->first_link_idx_holder;
+      } else {
+        return_link_idx_holder = current->next;
+      }
+    }
+  }
+  DBUG_RETURN(return_link_idx_holder);
+}
+
+bool spider_fields::check_link_ok_chain(
+) {
+  DBUG_ENTER("spider_fields::check_link_ok_chain");
+  DBUG_PRINT("info",("spider this=%p", this));
+  for (current_link_idx_chain = first_link_idx_chain; current_link_idx_chain;
+    current_link_idx_chain = current_link_idx_chain->next)
+  {
+    DBUG_PRINT("info",("spider current_link_idx_chain=%p", current_link_idx_chain));
+    DBUG_PRINT("info",("spider current_link_idx_chain->link_status=%d", current_link_idx_chain->link_status));
+    if (current_link_idx_chain->link_status == SPIDER_LINK_STATUS_OK)
+    {
+      first_ok_link_idx_chain = current_link_idx_chain;
+      DBUG_RETURN(FALSE);
+    }
+  }
+  DBUG_RETURN(TRUE);
+}
+
+bool spider_fields::is_first_link_ok_chain(
+  SPIDER_LINK_IDX_CHAIN *link_idx_chain_arg
+) {
+  DBUG_ENTER("spider_fields::is_first_link_ok_chain");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(first_ok_link_idx_chain == link_idx_chain_arg);
+}
+
+int spider_fields::get_ok_link_idx(
+) {
+  DBUG_ENTER("spider_fields::get_ok_link_idx");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(first_ok_link_idx_chain->link_idx_holder->link_idx);
+}
+
+void spider_fields::set_first_link_idx(
+) {
+  SPIDER_TABLE_HOLDER *table_holder;
+  SPIDER_LINK_IDX_HOLDER *link_idx_holder;
+  SPIDER_LINK_IDX_CHAIN *link_idx_chain;
+  uint dbton_id;
+  ha_spider *spider;
+  spider_db_handler *dbton_hdl;
+  DBUG_ENTER("spider_fields::set_first_link_idx");
+  DBUG_PRINT("info",("spider this=%p", this));
+  set_pos_to_first_dbton_id();
+  while ((dbton_id = get_next_dbton_id()) < SPIDER_DBTON_SIZE)
+  {
+    set_pos_to_first_link_idx_chain();
+    while ((link_idx_chain = get_next_link_idx_chain()))
+    {
+      if (link_idx_chain->conn->dbton_id == dbton_id)
+      {
+        break;
+      }
+    }
+    DBUG_ASSERT(link_idx_chain);
+    set_pos_to_first_table_on_link_idx_chain(link_idx_chain);
+
+    set_pos_to_first_table_holder();
+    while ((table_holder = get_next_table_holder()))
+    {
+      link_idx_holder = get_next_table_on_link_idx_chain(link_idx_chain);
+      spider = table_holder->spider;
+      dbton_hdl = spider->dbton_handler[dbton_id];
+      dbton_hdl->first_link_idx = link_idx_holder->link_idx;
+    }
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_fields::add_link_idx(
+  SPIDER_CONN_HOLDER *conn_holder_arg,
+  ha_spider *spider_arg,
+  int link_idx
+) {
+  SPIDER_TABLE_LINK_IDX_HOLDER *table_link_idx_holder;
+  SPIDER_LINK_IDX_HOLDER *link_idx_holder;
+  DBUG_ENTER("spider_fields::add_link_idx");
+  DBUG_PRINT("info",("spider this=%p", this));
+  table_link_idx_holder =
+    &conn_holder_arg->table_link_idx_holder[spider_arg->idx_for_direct_join];
+  if (!table_link_idx_holder->first_link_idx_holder)
+  {
+    link_idx_holder = create_link_idx_holder();
+    DBUG_PRINT("info",("spider link_idx_holder=%p", link_idx_holder));
+    if (!link_idx_holder)
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    table_link_idx_holder->first_link_idx_holder = link_idx_holder;
+    table_link_idx_holder->last_link_idx_holder = link_idx_holder;
+    table_link_idx_holder->table_holder =
+      &table_holder[spider_arg->idx_for_direct_join];
+  } else {
+    link_idx_holder = create_link_idx_holder();
+    DBUG_PRINT("info",("spider link_idx_holder=%p", link_idx_holder));
+    if (!link_idx_holder)
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    table_link_idx_holder->last_link_idx_holder->next = link_idx_holder;
+    table_link_idx_holder->last_link_idx_holder = link_idx_holder;
+  }
+  link_idx_holder->table_link_idx_holder = table_link_idx_holder;
+  link_idx_holder->link_idx = link_idx;
+  link_idx_holder->link_status = spider_conn_get_link_status(
+    spider_arg->share->link_statuses, spider_arg->conn_link_idx,
+    link_idx);
+  ++table_link_idx_holder->link_idx_holder_count;
+  if (conn_holder_arg->link_idx_holder_count_max <
+    table_link_idx_holder->link_idx_holder_count)
+  {
+    conn_holder_arg->link_idx_holder_count_max =
+      table_link_idx_holder->link_idx_holder_count;
+  }
+  DBUG_RETURN(0);
+}
+
+SPIDER_LINK_IDX_HOLDER *spider_fields::create_link_idx_holder(
+) {
+  DBUG_ENTER("spider_fields::create_link_idx_holder");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN((SPIDER_LINK_IDX_HOLDER *)
+    spider_malloc(spider_current_trx, 253, sizeof(SPIDER_LINK_IDX_HOLDER),
+    MYF(MY_WME | MY_ZEROFILL)));
+}
+
+void spider_fields::set_pos_to_first_table_on_link_idx_chain(
+  SPIDER_LINK_IDX_CHAIN *link_idx_chain_arg
+) {
+  DBUG_ENTER("spider_fields::set_pos_to_first_table_on_link_idx_chain");
+  DBUG_PRINT("info",("spider this=%p", this));
+  link_idx_chain_arg->current_link_idx_holder =
+    link_idx_chain_arg->link_idx_holder;
+  DBUG_VOID_RETURN;
+}
+
+SPIDER_LINK_IDX_HOLDER *spider_fields::get_next_table_on_link_idx_chain(
+  SPIDER_LINK_IDX_CHAIN *link_idx_chain_arg
+) {
+  SPIDER_LINK_IDX_HOLDER *return_link_idx_holder;
+  DBUG_ENTER("spider_fields::get_next_table_on_link_idx_chain");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!link_idx_chain_arg->current_link_idx_holder)
+    DBUG_RETURN(NULL);
+  return_link_idx_holder = link_idx_chain_arg->current_link_idx_holder;
+  link_idx_chain_arg->current_link_idx_holder =
+    link_idx_chain_arg->current_link_idx_holder->next_table;
+  DBUG_RETURN(return_link_idx_holder);
+}
+
+SPIDER_CONN_HOLDER *spider_fields::add_conn(
+  SPIDER_CONN *conn_arg,
+  long access_balance
+) {
+  SPIDER_CONN_HOLDER *conn_holder;
+  DBUG_ENTER("spider_fields::add_conn");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (!first_conn_holder)
+  {
+    conn_holder = create_conn_holder();
+    DBUG_PRINT("info",("spider conn_holder=%p", conn_holder));
+    if (!conn_holder)
+      DBUG_RETURN(NULL);
+    conn_holder->conn = conn_arg;
+    conn_holder->access_balance = access_balance;
+    first_conn_holder = conn_holder;
+    last_conn_holder = conn_holder;
+    conn_arg->conn_holder_for_direct_join = conn_holder;
+    add_dbton_id(conn_arg->dbton_id);
+  } else {
+    conn_holder = first_conn_holder;
+    do {
+      if (conn_holder->conn == conn_arg)
+        break;
+    } while ((conn_holder = conn_holder->next));
+    if (!conn_holder)
+    {
+      conn_holder = create_conn_holder();
+      DBUG_PRINT("info",("spider conn_holder=%p", conn_holder));
+      if (!conn_holder)
+        DBUG_RETURN(NULL);
+      conn_holder->conn = conn_arg;
+      conn_holder->access_balance = access_balance;
+      conn_holder->prev = last_conn_holder;
+      last_conn_holder->next = conn_holder;
+      last_conn_holder = conn_holder;
+      conn_arg->conn_holder_for_direct_join = conn_holder;
+      add_dbton_id(conn_arg->dbton_id);
+    }
+  }
+  DBUG_RETURN(conn_holder);
+}
+
+SPIDER_CONN_HOLDER *spider_fields::create_conn_holder(
+) {
+  SPIDER_CONN_HOLDER *return_conn_holder;
+  SPIDER_TABLE_LINK_IDX_HOLDER *table_link_idx_holder;
+  DBUG_ENTER("spider_fields::create_conn_holder");
+  DBUG_PRINT("info",("spider this=%p", this));
+  return_conn_holder = (SPIDER_CONN_HOLDER *)
+    spider_bulk_malloc(spider_current_trx, 252, MYF(MY_WME | MY_ZEROFILL),
+      &return_conn_holder, (uint) (sizeof(SPIDER_CONN_HOLDER)),
+      &table_link_idx_holder,
+        (uint) (table_count * sizeof(SPIDER_TABLE_LINK_IDX_HOLDER)),
+      NullS
+    );
+  if (!return_conn_holder)
+    DBUG_RETURN(NULL);
+  DBUG_PRINT("info",("spider table_count=%u", table_count));
+  DBUG_PRINT("info",("spider table_link_idx_holder=%p", table_link_idx_holder));
+  return_conn_holder->table_link_idx_holder = table_link_idx_holder;
+  DBUG_RETURN(return_conn_holder);
+}
+
+void spider_fields::set_pos_to_first_conn_holder(
+) {
+  DBUG_ENTER("spider_fields::set_pos_to_first_conn_holder");
+  DBUG_PRINT("info",("spider this=%p", this));
+  current_conn_holder = first_conn_holder;
+  DBUG_VOID_RETURN;
+}
+
+SPIDER_CONN_HOLDER *spider_fields::get_next_conn_holder(
+) {
+  SPIDER_CONN_HOLDER *return_conn_holder = current_conn_holder;
+  DBUG_ENTER("spider_fields::get_next_conn_holder");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (current_conn_holder)
+    current_conn_holder = current_conn_holder->next;
+  DBUG_RETURN(return_conn_holder);
+}
+
+bool spider_fields::has_conn_holder(
+) {
+  DBUG_ENTER("spider_fields::has_conn_holder");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(first_conn_holder);
+}
+
+void spider_fields::clear_conn_holder_from_conn(
+) {
+  DBUG_ENTER("spider_fields::clear_conn_checked_for_same_conn");
+  DBUG_PRINT("info",("spider this=%p", this));
+  for (current_conn_holder = first_conn_holder; current_conn_holder;
+    current_conn_holder = current_conn_holder->next)
+  {
+    current_conn_holder->checked_for_same_conn = FALSE;
+  }
+  DBUG_VOID_RETURN;
+}
+
+bool spider_fields::check_conn_same_conn(
+  SPIDER_CONN *conn_arg
+) {
+  DBUG_ENTER("spider_fields::check_conn_same_conn");
+  DBUG_PRINT("info",("spider this=%p", this));
+  for (current_conn_holder = first_conn_holder; current_conn_holder;
+    current_conn_holder = current_conn_holder->next)
+  {
+    if (current_conn_holder->conn == conn_arg)
+    {
+      current_conn_holder->checked_for_same_conn = TRUE;
+      DBUG_RETURN(TRUE);
+    }
+  }
+  DBUG_RETURN(FALSE);
+}
+
+bool spider_fields::remove_conn_if_not_checked(
+) {
+  SPIDER_CONN_HOLDER *conn_holder;
+  bool removed = FALSE;
+  DBUG_ENTER("spider_fields::remove_conn_if_not_checked");
+  DBUG_PRINT("info",("spider this=%p", this));
+  current_conn_holder = first_conn_holder;
+  while (current_conn_holder)
+  {
+    if (!current_conn_holder->checked_for_same_conn)
+    {
+      removed = TRUE;
+      DBUG_PRINT("info",("spider remove connection %p",
+        current_conn_holder->conn));
+      if (!current_conn_holder->prev)
+      {
+        first_conn_holder = current_conn_holder->next;
+        if (current_conn_holder->next)
+        {
+          current_conn_holder->next->prev = NULL;
+        } else {
+          last_conn_holder = NULL;
+        }
+      } else {
+        current_conn_holder->prev->next = current_conn_holder->next;
+        if (current_conn_holder->next)
+        {
+          current_conn_holder->next->prev = current_conn_holder->prev;
+        } else {
+          last_conn_holder = current_conn_holder->prev;
+          last_conn_holder->next = NULL;
+        }
+      }
+      conn_holder = current_conn_holder->next;
+      free_conn_holder(current_conn_holder);
+      current_conn_holder = conn_holder;
+    } else {
+      current_conn_holder = current_conn_holder->next;
+    }
+  }
+  DBUG_RETURN(removed);
+}
+
+void spider_fields::check_support_dbton(
+  uchar *dbton_bitmap
+) {
+  SPIDER_CONN_HOLDER *conn_holder;
+  DBUG_ENTER("spider_fields::check_support_dbton");
+  DBUG_PRINT("info",("spider this=%p", this));
+  current_conn_holder = first_conn_holder;
+  while (current_conn_holder)
+  {
+    if (!spider_bit_is_set(dbton_bitmap, current_conn_holder->conn->dbton_id))
+    {
+      DBUG_PRINT("info",("spider remove connection %p",
+        current_conn_holder->conn));
+      if (!current_conn_holder->prev)
+      {
+        first_conn_holder = current_conn_holder->next;
+        if (current_conn_holder->next)
+        {
+          current_conn_holder->next->prev = NULL;
+        } else {
+          last_conn_holder = NULL;
+        }
+      } else {
+        current_conn_holder->prev->next = current_conn_holder->next;
+        if (current_conn_holder->next)
+        {
+          current_conn_holder->next->prev = current_conn_holder->prev;
+        } else {
+          last_conn_holder = current_conn_holder->prev;
+          last_conn_holder->next = NULL;
+        }
+      }
+      conn_holder = current_conn_holder->next;
+      free_conn_holder(current_conn_holder);
+      current_conn_holder = conn_holder;
+    } else {
+      current_conn_holder = current_conn_holder->next;
+    }
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_fields::choose_a_conn(
+) {
+  SPIDER_CONN_HOLDER *conn_holder;
+  longlong balance_total = 0, balance_val;
+  double rand_val;
+  THD *thd = table_holder[0].spider->wide_handler->trx->thd;
+  DBUG_ENTER("spider_fields::choose_a_conn");
+  DBUG_PRINT("info",("spider this=%p", this));
+  for (current_conn_holder = first_conn_holder; current_conn_holder;
+    current_conn_holder = current_conn_holder->next)
+  {
+    balance_total += current_conn_holder->access_balance;
+  }
+
+  rand_val = spider_rand(thd->variables.server_id + thd_get_thread_id(thd));
+  balance_val = (longlong) (rand_val * balance_total);
+
+  current_conn_holder = first_conn_holder;
+  while (current_conn_holder)
+  {
+    if (balance_val < current_conn_holder->access_balance)
+      break;
+    balance_val -= current_conn_holder->access_balance;
+
+    DBUG_PRINT("info",("spider remove connection %p",
+      current_conn_holder->conn));
+    first_conn_holder = current_conn_holder->next;
+    DBUG_ASSERT(current_conn_holder->next);
+    first_conn_holder->prev = NULL;
+    free_conn_holder(current_conn_holder);
+    current_conn_holder = first_conn_holder;
+  }
+
+  DBUG_PRINT("info",("spider chosen connection is %p",
+    current_conn_holder->conn));
+  last_conn_holder = current_conn_holder;
+  current_conn_holder = current_conn_holder->next;
+  last_conn_holder->next = NULL;
+
+  while (current_conn_holder)
+  {
+    DBUG_PRINT("info",("spider remove connection %p",
+    current_conn_holder->conn));
+    conn_holder = current_conn_holder->next;
+    free_conn_holder(current_conn_holder);
+    current_conn_holder = conn_holder;
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_fields::free_conn_holder(
+  SPIDER_CONN_HOLDER *conn_holder_arg
+) {
+  uint roop_count;
+  DBUG_ENTER("spider_fields::free_conn_holder");
+  DBUG_PRINT("info",("spider this=%p", this));
+  for (roop_count = 0; roop_count < table_count; ++roop_count)
+  {
+    if (conn_holder_arg->table_link_idx_holder[roop_count].first_link_idx_holder)
+    {
+      SPIDER_LINK_IDX_HOLDER *first_link_idx_holder, *current_link_idx_holder;
+      first_link_idx_holder =
+        conn_holder_arg->table_link_idx_holder[roop_count].first_link_idx_holder;
+      while ((current_link_idx_holder = first_link_idx_holder))
+      {
+        first_link_idx_holder = current_link_idx_holder->next;
+        spider_free(spider_current_trx, current_link_idx_holder, MYF(0));
+      }
+    }
+  }
+  conn_holder_arg->conn->conn_holder_for_direct_join = NULL;
+  DBUG_PRINT("info",("spider free conn_holder=%p", conn_holder_arg));
+  spider_free(spider_current_trx, conn_holder_arg, MYF(0));
+  DBUG_VOID_RETURN;
+}
+
+SPIDER_TABLE_HOLDER *spider_fields::add_table(
+  ha_spider *spider_arg
+) {
+  spider_string *str;
+  uint length;
+  char tmp_buf[SPIDER_SQL_INT_LEN + 2];
+  SPIDER_TABLE_HOLDER *return_table_holder;
+  SPIDER_FIELD_HOLDER *field_holder;
+  TABLE *table = spider_arg->get_table();
+  Field *field;
+  DBUG_ENTER("spider_fields::add_table");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider table_count=%u", table_count));
+  DBUG_PRINT("info",("spider idx_for_direct_join=%u",
+    spider_arg->idx_for_direct_join));
+  length = my_sprintf(tmp_buf, (tmp_buf, "t%u",
+    spider_arg->idx_for_direct_join));
+  str = &spider_arg->result_list.tmp_sqls[0];
+  str->length(0);
+  if (str->reserve(length + SPIDER_SQL_DOT_LEN))
+  {
+    DBUG_RETURN(NULL);
+  }
+  str->q_append(tmp_buf, length);
+  str->q_append(SPIDER_SQL_DOT_STR, SPIDER_SQL_DOT_LEN);
+
+  return_table_holder = &table_holder[spider_arg->idx_for_direct_join];
+  return_table_holder->table = spider_arg->get_table();
+  return_table_holder->spider = spider_arg;
+  return_table_holder->alias = str;
+
+  set_pos_to_first_field_holder();
+  while ((field_holder = get_next_field_holder()))
+  {
+    if (!field_holder->spider)
+    {
+      field = field_holder->field;
+      if (
+        field->field_index < table->s->fields &&
+        field == table->field[field->field_index]
+      ) {
+        field_holder->spider = spider_arg;
+        field_holder->alias = str;
+      }
+    }
+  }
+  DBUG_RETURN(return_table_holder);
+}
+
+/**
+  Verify that all fields in the query are members of tables that are in the
+  query.
+
+  @return TRUE              All fields in the query are members of tables
+                            that are in the query.
+          FALSE             At least one field in the query is not a
+                            member of a table that is in the query.
+*/
+
+bool spider_fields::all_query_fields_are_query_table_members()
+{
+  SPIDER_FIELD_HOLDER *field_holder;
+  DBUG_ENTER("spider_fields::all_query_fields_are_query_table_members");
+  DBUG_PRINT("info",("spider this=%p", this));
+
+  set_pos_to_first_field_holder();
+  while ((field_holder = get_next_field_holder()))
+  {
+    if (!field_holder->spider)
+    {
+      DBUG_PRINT("info", ("spider field is not a member of a query table"));
+      DBUG_RETURN(FALSE);
+    }
+  }
+
+  DBUG_RETURN(TRUE);
+}
+
+int spider_fields::create_table_holder(
+  uint table_count_arg
+) {
+  DBUG_ENTER("spider_fields::create_table_holder");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(!table_holder);
+  table_holder = (SPIDER_TABLE_HOLDER *)
+    spider_malloc(spider_current_trx, 249,
+    table_count_arg * sizeof(SPIDER_TABLE_HOLDER),
+    MYF(MY_WME | MY_ZEROFILL));
+  if (!table_holder)
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  table_count = table_count_arg;
+  current_table_num = 0;
+  DBUG_RETURN(0);
+}
+
+void spider_fields::set_pos_to_first_table_holder(
+) {
+  DBUG_ENTER("spider_fields::set_pos_to_first_table_holder");
+  DBUG_PRINT("info",("spider this=%p", this));
+  current_table_num = 0;
+  DBUG_VOID_RETURN;
+}
+
+SPIDER_TABLE_HOLDER *spider_fields::get_next_table_holder(
+) {
+  SPIDER_TABLE_HOLDER *return_table_holder;
+  DBUG_ENTER("spider_fields::get_next_table_holder");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (current_table_num >= table_count)
+    DBUG_RETURN(NULL);
+  return_table_holder = &table_holder[current_table_num];
+  ++current_table_num;
+  DBUG_RETURN(return_table_holder);
+}
+
+SPIDER_TABLE_HOLDER *spider_fields::get_table_holder(TABLE *table)
+{
+  uint table_num;
+  DBUG_ENTER("spider_fields::get_table_holder");
+  DBUG_PRINT("info",("spider this=%p", this));
+  for (table_num = 0; table_num < table_count; ++table_num)
+  {
+    if (table_holder[table_num].table == table)
+      DBUG_RETURN(&table_holder[table_num]);
+  }
+  DBUG_RETURN(NULL);
+}
+
+uint spider_fields::get_table_count()
+{
+  DBUG_ENTER("spider_fields::get_table_count");
+  DBUG_RETURN(table_count);
+}
+
+int spider_fields::add_field(
+  Field *field_arg
+) {
+  SPIDER_FIELD_HOLDER *field_holder;
+  SPIDER_FIELD_CHAIN *field_chain;
+  DBUG_ENTER("spider_fields::add_field");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider field=%p", field_arg));
+  if (!first_field_holder)
+  {
+    field_holder = create_field_holder();
+    DBUG_PRINT("info",("spider field_holder=%p", field_holder));
+    if (!field_holder)
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    field_holder->field = field_arg;
+    first_field_holder = field_holder;
+    last_field_holder = field_holder;
+  } else {
+    field_holder = first_field_holder;
+    do {
+      if (field_holder->field == field_arg)
+        break;
+    } while ((field_holder = field_holder->next));
+    if (!field_holder)
+    {
+      field_holder = create_field_holder();
+      DBUG_PRINT("info",("spider field_holder=%p", field_holder));
+      if (!field_holder)
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      field_holder->field = field_arg;
+      last_field_holder->next = field_holder;
+      last_field_holder = field_holder;
+    }
+  }
+  field_chain = create_field_chain();
+  DBUG_PRINT("info",("spider field_chain=%p", field_chain));
+  if (!field_chain)
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  field_chain->field_holder = field_holder;
+  if (!first_field_chain)
+  {
+    first_field_chain = field_chain;
+    last_field_chain = field_chain;
+  } else {
+    last_field_chain->next = field_chain;
+    last_field_chain = field_chain;
+  }
+  DBUG_RETURN(0);
+}
+
+SPIDER_FIELD_HOLDER *spider_fields::create_field_holder(
+) {
+  DBUG_ENTER("spider_fields::create_field_holder");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN((SPIDER_FIELD_HOLDER *)
+    spider_malloc(spider_current_trx, 250, sizeof(SPIDER_FIELD_HOLDER),
+    MYF(MY_WME | MY_ZEROFILL)));
+}
+
+void spider_fields::set_pos_to_first_field_holder(
+) {
+  DBUG_ENTER("spider_fields::set_pos_to_first_field_holder");
+  DBUG_PRINT("info",("spider this=%p", this));
+  current_field_holder = first_field_holder;
+  DBUG_VOID_RETURN;
+}
+
+SPIDER_FIELD_HOLDER *spider_fields::get_next_field_holder(
+) {
+  SPIDER_FIELD_HOLDER *return_field_holder = current_field_holder;
+  DBUG_ENTER("spider_fields::get_next_field_holder");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (current_field_holder)
+    current_field_holder = current_field_holder->next;
+  DBUG_RETURN(return_field_holder);
+}
+
+SPIDER_FIELD_CHAIN *spider_fields::create_field_chain(
+) {
+  DBUG_ENTER("spider_fields::create_field_chain");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN((SPIDER_FIELD_CHAIN *)
+    spider_malloc(spider_current_trx, 251, sizeof(SPIDER_FIELD_CHAIN),
+    MYF(MY_WME | MY_ZEROFILL)));
+}
+
+void spider_fields::set_pos_to_first_field_chain(
+) {
+  DBUG_ENTER("spider_fields::set_pos_to_first_field_chain");
+  DBUG_PRINT("info",("spider this=%p", this));
+  current_field_chain = first_field_chain;
+  DBUG_VOID_RETURN;
+}
+
+SPIDER_FIELD_CHAIN *spider_fields::get_next_field_chain(
+) {
+  SPIDER_FIELD_CHAIN *return_field_chain = current_field_chain;
+  DBUG_ENTER("spider_fields::get_next_field_chain");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (current_field_chain)
+    current_field_chain = current_field_chain->next;
+  DBUG_RETURN(return_field_chain);
+}
+
+void spider_fields::set_field_ptr(
+  Field **field_arg
+) {
+  DBUG_ENTER("spider_fields::set_field_ptr");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_PRINT("info",("spider field_ptr=%p", field_arg));
+  first_field_ptr = field_arg;
+  current_field_ptr = field_arg;
+  DBUG_VOID_RETURN;
+}
+
+Field **spider_fields::get_next_field_ptr(
+) {
+  Field **return_field_ptr = current_field_ptr;
+  DBUG_ENTER("spider_fields::get_next_field_ptr");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (*current_field_ptr)
+    current_field_ptr++;
+  DBUG_PRINT("info",("spider field_ptr=%p", return_field_ptr));
+  DBUG_RETURN(return_field_ptr);
+}
+
+int spider_fields::ping_table_mon_from_table(
+  SPIDER_LINK_IDX_CHAIN *link_idx_chain
+) {
+  int error_num = 0, error_num_buf;
+  ha_spider *tmp_spider;
+  SPIDER_SHARE *tmp_share;
+  int tmp_link_idx;
+  SPIDER_TABLE_HOLDER *table_holder;
+  SPIDER_LINK_IDX_HOLDER *link_idx_holder;
+  DBUG_ENTER("spider_fields::ping_table_mon_from_table");
+  set_pos_to_first_table_on_link_idx_chain(link_idx_chain);
+  set_pos_to_first_table_holder();
+  while ((table_holder = get_next_table_holder()))
+  {
+    link_idx_holder = get_next_table_on_link_idx_chain(link_idx_chain);
+    tmp_spider = table_holder->spider;
+    tmp_link_idx = link_idx_holder->link_idx;
+    tmp_share = tmp_spider->share;
+    if (tmp_share->monitoring_kind[tmp_link_idx])
+    {
+      error_num_buf = spider_ping_table_mon_from_table(
+          tmp_spider->wide_handler->trx,
+          tmp_spider->wide_handler->trx->thd,
+          tmp_share,
+          tmp_link_idx,
+          (uint32) tmp_share->monitoring_sid[tmp_link_idx],
+          tmp_share->table_name,
+          tmp_share->table_name_length,
+          tmp_spider->conn_link_idx[tmp_link_idx],
+          NULL,
+          0,
+          tmp_share->monitoring_kind[tmp_link_idx],
+          tmp_share->monitoring_limit[tmp_link_idx],
+          tmp_share->monitoring_flag[tmp_link_idx],
+          TRUE
+        );
+      if (!error_num)
+        error_num = error_num_buf;
+    }
+  }
+  DBUG_RETURN(error_num);
+}
+
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+spider_group_by_handler::spider_group_by_handler(
+  THD *thd_arg,
+  Query *query_arg,
+  spider_fields *fields_arg
+) : group_by_handler(thd_arg, spider_hton_ptr),
+  query(*query_arg), fields(fields_arg)
+{
+  DBUG_ENTER("spider_group_by_handler::spider_group_by_handler");
+  fields->set_pos_to_first_table_holder();
+  SPIDER_TABLE_HOLDER *table_holder = fields->get_next_table_holder();
+  spider = table_holder->spider;
+  trx = spider->wide_handler->trx;
+  DBUG_VOID_RETURN;
+}
+
+spider_group_by_handler::~spider_group_by_handler()
+{
+  DBUG_ENTER("spider_group_by_handler::~spider_group_by_handler");
+  delete fields;
+  DBUG_VOID_RETURN;
+}
+
+int spider_group_by_handler::init_scan()
+{
+  int error_num, link_idx;
+  uint dbton_id;
+  spider_db_handler *dbton_hdl;
+  st_select_lex *select_lex;
+  longlong select_limit;
+  longlong direct_order_limit;
+  SPIDER_SHARE *share = spider->share;
+  SPIDER_CONN *conn;
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  SPIDER_LINK_IDX_CHAIN *link_idx_chain;
+  SPIDER_LINK_IDX_HOLDER *link_idx_holder;
+  DBUG_ENTER("spider_group_by_handler::init_scan");
+  store_error = 0;
+#ifndef DBUG_OFF
+  Field **field;
+  for (
+    field = table->field;
+    *field;
+    field++
+  ) {
+    DBUG_PRINT("info",("spider field_name=%s",
+      SPIDER_field_name_str(*field)));
+  }
+#endif
+
+  if (trx->thd->killed)
+  {
+    my_error(ER_QUERY_INTERRUPTED, MYF(0));
+    DBUG_RETURN(ER_QUERY_INTERRUPTED);
+  }
+
+  spider->use_fields = TRUE;
+  spider->fields = fields;
+
+  spider->check_pre_call(TRUE);
+
+  spider->pushed_pos = NULL;
+  result_list->sorted = (query.group_by || query.order_by);
+  spider_set_result_list_param(spider);
+  spider->mrr_with_cnt = FALSE;
+  spider->init_index_handler = FALSE;
+  spider->use_spatial_index = FALSE;
+  result_list->check_direct_order_limit = FALSE;
+  spider->select_column_mode = 0;
+  spider->search_link_idx = fields->get_ok_link_idx();
+  spider->result_link_idx = spider->search_link_idx;
+
+  spider_db_free_one_result_for_start_next(spider);
+
+  spider->sql_kinds = SPIDER_SQL_KIND_SQL;
+  for (link_idx = 0; link_idx < (int) share->link_count; ++link_idx)
+    spider->sql_kind[link_idx] = SPIDER_SQL_KIND_SQL;
+
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  spider->do_direct_update = FALSE;
+  spider->direct_update_kinds = 0;
+#endif
+  spider_get_select_limit(spider, &select_lex, &select_limit, &offset_limit);
+  direct_order_limit = spider_param_direct_order_limit(thd,
+    share->direct_order_limit);
+  if (
+    direct_order_limit &&
+    select_lex->explicit_limit &&
+    !(select_lex->options & OPTION_FOUND_ROWS) &&
+    select_limit < direct_order_limit /* - offset_limit */
+  ) {
+    result_list->internal_limit = select_limit /* + offset_limit */;
+    result_list->split_read = select_limit /* + offset_limit */;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+    result_list->bgs_split_read = select_limit /* + offset_limit */;
+#endif
+
+    result_list->split_read_base = 9223372036854775807LL;
+    result_list->semi_split_read = 0;
+    result_list->semi_split_read_limit = 9223372036854775807LL;
+    result_list->first_read = 9223372036854775807LL;
+    result_list->second_read = 9223372036854775807LL;
+    trx->direct_order_limit_count++;
+  }
+  result_list->semi_split_read_base = 0;
+  result_list->set_split_read = TRUE;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  if ((error_num = spider_set_conn_bg_param(spider)))
+    DBUG_RETURN(error_num);
+#endif
+  DBUG_PRINT("info",("spider result_list.finish_flg = FALSE"));
+  result_list->finish_flg = FALSE;
+  result_list->record_num = 0;
+  result_list->keyread = FALSE;
+  result_list->desc_flg = FALSE;
+  result_list->sorted = FALSE;
+  result_list->key_info = NULL;
+  result_list->key_order = 0;
+  result_list->limit_num =
+    result_list->internal_limit >= result_list->split_read ?
+    result_list->split_read : result_list->internal_limit;
+
+  if (select_lex->explicit_limit)
+  {
+    result_list->internal_offset += offset_limit;
+  } else {
+    offset_limit = 0;
+  }
+
+  /* making a query */
+  fields->set_pos_to_first_dbton_id();
+  while ((dbton_id = fields->get_next_dbton_id()) < SPIDER_DBTON_SIZE)
+  {
+    dbton_hdl = spider->dbton_handler[dbton_id];
+    result_list->direct_distinct = query.distinct;
+    fields->set_pos_to_first_field_chain();
+    if ((error_num = dbton_hdl->reset_sql(SPIDER_SQL_TYPE_SELECT_SQL)))
+    {
+      DBUG_RETURN(error_num);
+    }
+    if ((error_num = dbton_hdl->append_select_part(SPIDER_SQL_TYPE_SELECT_SQL)))
+    {
+      DBUG_RETURN(error_num);
+    }
+    fields->set_field_ptr(table->field);
+    if ((error_num = dbton_hdl->append_list_item_select_part(
+      query.select, NULL, 0, TRUE, fields, SPIDER_SQL_TYPE_SELECT_SQL)))
+    {
+      DBUG_RETURN(error_num);
+    }
+    if ((error_num = dbton_hdl->append_from_and_tables_part(
+      fields, SPIDER_SQL_TYPE_SELECT_SQL)))
+    {
+      DBUG_RETURN(error_num);
+    }
+    if (query.where)
+    {
+      if ((error_num =
+        dbton_hdl->append_where_part(SPIDER_SQL_TYPE_SELECT_SQL)))
+      {
+        DBUG_RETURN(error_num);
+      }
+      if ((error_num = dbton_hdl->append_item_type_part(
+        query.where, NULL, 0, TRUE, fields, SPIDER_SQL_TYPE_SELECT_SQL)))
+      {
+        DBUG_RETURN(error_num);
+      }
+    }
+    if (query.group_by)
+    {
+      if ((error_num = dbton_hdl->append_group_by_part(
+        query.group_by, NULL, 0, TRUE, fields, SPIDER_SQL_TYPE_SELECT_SQL)))
+      {
+        DBUG_RETURN(error_num);
+      }
+    }
+    if (query.having)
+    {
+      if ((error_num =
+        dbton_hdl->append_having_part(SPIDER_SQL_TYPE_SELECT_SQL)))
+      {
+        DBUG_RETURN(error_num);
+      }
+      if ((error_num = dbton_hdl->append_item_type_part(
+        query.having, NULL, 0, TRUE, fields, SPIDER_SQL_TYPE_SELECT_SQL)))
+      {
+        DBUG_RETURN(error_num);
+      }
+    }
+    if (query.order_by)
+    {
+      if ((error_num = dbton_hdl->append_order_by_part(
+        query.order_by, NULL, 0, TRUE, fields, SPIDER_SQL_TYPE_SELECT_SQL)))
+      {
+        DBUG_RETURN(error_num);
+      }
+    }
+    if ((error_num = dbton_hdl->append_limit_part(result_list->internal_offset,
+      result_list->limit_num, SPIDER_SQL_TYPE_SELECT_SQL)))
+    {
+      DBUG_RETURN(error_num);
+    }
+    if ((error_num = dbton_hdl->append_select_lock_part(
+      SPIDER_SQL_TYPE_SELECT_SQL)))
+    {
+      DBUG_RETURN(error_num);
+    }
+  }
+
+  fields->set_pos_to_first_link_idx_chain();
+  while ((link_idx_chain = fields->get_next_link_idx_chain()))
+  {
+    conn = link_idx_chain->conn;
+    link_idx_holder = link_idx_chain->link_idx_holder;
+    link_idx = link_idx_holder->link_idx;
+    dbton_hdl = spider->dbton_handler[conn->dbton_id];
+    spider->link_idx_chain = link_idx_chain;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+    if (result_list->bgs_phase > 0)
+    {
+      if ((error_num = spider_check_and_init_casual_read(trx->thd, spider,
+        link_idx)))
+        DBUG_RETURN(error_num);
+      if ((error_num = spider_bg_conn_search(spider, link_idx,
+        dbton_hdl->first_link_idx, TRUE, FALSE,
+        !fields->is_first_link_ok_chain(link_idx_chain))))
+      {
+        if (
+          error_num != HA_ERR_END_OF_FILE &&
+          spider->need_mons[link_idx]
+        ) {
+          error_num = fields->ping_table_mon_from_table(link_idx_chain);
+        }
+        if ((error_num = spider->check_error_mode_eof(error_num)) == HA_ERR_END_OF_FILE)
+        {
+          store_error = HA_ERR_END_OF_FILE;
+          error_num = 0;
+        }
+        DBUG_RETURN(error_num);
+      }
+    } else {
+#endif
+      pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+      if (dbton_hdl->need_lock_before_set_sql_for_exec(
+        SPIDER_SQL_TYPE_SELECT_SQL))
+      {
+        pthread_mutex_lock(&conn->mta_conn_mutex);
+        SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      }
+      if ((error_num =
+        dbton_hdl->set_sql_for_exec(SPIDER_SQL_TYPE_SELECT_SQL, link_idx,
+        link_idx_chain)))
+      {
+        if (dbton_hdl->need_lock_before_set_sql_for_exec(
+          SPIDER_SQL_TYPE_SELECT_SQL))
+        {
+          SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+          pthread_mutex_unlock(&conn->mta_conn_mutex);
+        }
+        DBUG_RETURN(error_num);
+      }
+      if (!dbton_hdl->need_lock_before_set_sql_for_exec(
+        SPIDER_SQL_TYPE_SELECT_SQL))
+      {
+        pthread_mutex_lock(&conn->mta_conn_mutex);
+        SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      }
+      conn->need_mon = &spider->need_mons[link_idx];
+      DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = TRUE;
+      conn->mta_conn_mutex_unlock_later = TRUE;
+      if ((error_num = spider_db_set_names(spider, conn,
+        link_idx)))
+      {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+        if (
+          spider->need_mons[link_idx]
+        ) {
+          error_num = fields->ping_table_mon_from_table(link_idx_chain);
+        }
+        if ((error_num = spider->check_error_mode_eof(error_num)) == HA_ERR_END_OF_FILE)
+        {
+          store_error = HA_ERR_END_OF_FILE;
+          error_num = 0;
+        }
+        DBUG_RETURN(error_num);
+      }
+      spider_conn_set_timeout_from_share(conn, link_idx,
+        trx->thd, share);
+      if (dbton_hdl->execute_sql(
+        SPIDER_SQL_TYPE_SELECT_SQL,
+        conn,
+        spider->result_list.quick_mode,
+        &spider->need_mons[link_idx])
+      ) {
+        DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+        DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+        conn->mta_conn_mutex_lock_already = FALSE;
+        conn->mta_conn_mutex_unlock_later = FALSE;
+        error_num = spider_db_errorno(conn);
+        if (
+          spider->need_mons[link_idx]
+        ) {
+          error_num = fields->ping_table_mon_from_table(link_idx_chain);
+        }
+        if ((error_num = spider->check_error_mode_eof(error_num)) == HA_ERR_END_OF_FILE)
+        {
+          store_error = HA_ERR_END_OF_FILE;
+          error_num = 0;
+        }
+        DBUG_RETURN(error_num);
+      }
+      spider->connection_ids[link_idx] = conn->connection_id;
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      if (fields->is_first_link_ok_chain(link_idx_chain))
+      {
+        if ((error_num = spider_db_store_result(spider, link_idx, table)))
+        {
+          if (
+            error_num != HA_ERR_END_OF_FILE &&
+            spider->need_mons[link_idx]
+          ) {
+            error_num = fields->ping_table_mon_from_table(link_idx_chain);
+          }
+          if ((error_num = spider->check_error_mode_eof(error_num)) == HA_ERR_END_OF_FILE)
+          {
+            store_error = HA_ERR_END_OF_FILE;
+            error_num = 0;
+          }
+          DBUG_RETURN(error_num);
+        }
+        spider->result_link_idx = link_idx;
+        spider->result_link_idx_chain = link_idx_chain;
+      } else {
+        spider_db_discard_result(spider, link_idx, conn);
+        SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+        pthread_mutex_unlock(&conn->mta_conn_mutex);
+      }
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+    }
+#endif
+  }
+
+  first = TRUE;
+  DBUG_RETURN(0);
+}
+
+int spider_group_by_handler::next_row()
+{
+  int error_num, link_idx;
+  spider_db_handler *dbton_hdl;
+  SPIDER_CONN *conn;
+  SPIDER_LINK_IDX_CHAIN *link_idx_chain;
+  SPIDER_LINK_IDX_HOLDER *link_idx_holder;
+  DBUG_ENTER("spider_group_by_handler::next_row");
+  if (trx->thd->killed)
+  {
+    my_error(ER_QUERY_INTERRUPTED, MYF(0));
+    DBUG_RETURN(ER_QUERY_INTERRUPTED);
+  }
+  if (store_error)
+  {
+    if (store_error == HA_ERR_END_OF_FILE)
+    {
+      table->status = STATUS_NOT_FOUND;
+    }
+    DBUG_RETURN(store_error);
+  }
+  if (first)
+  {
+    first = FALSE;
+    if (spider->use_pre_call)
+    {
+      if (spider->store_error_num)
+      {
+        if (spider->store_error_num == HA_ERR_END_OF_FILE)
+          table->status = STATUS_NOT_FOUND;
+        DBUG_RETURN(spider->store_error_num);
+      }
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+      if (spider->result_list.bgs_phase > 0)
+      {
+        fields->set_pos_to_first_link_idx_chain();
+        while ((link_idx_chain = fields->get_next_link_idx_chain()))
+        {
+          conn = link_idx_chain->conn;
+          link_idx_holder = link_idx_chain->link_idx_holder;
+          link_idx = link_idx_holder->link_idx;
+          dbton_hdl = spider->dbton_handler[conn->dbton_id];
+          spider->link_idx_chain = link_idx_chain;
+          if ((error_num = spider_bg_conn_search(spider, link_idx,
+            dbton_hdl->first_link_idx, TRUE, TRUE,
+            !fields->is_first_link_ok_chain(link_idx_chain))))
+          {
+            if (
+              error_num != HA_ERR_END_OF_FILE &&
+              spider->need_mons[link_idx]
+            ) {
+              error_num = fields->ping_table_mon_from_table(link_idx_chain);
+            }
+            if ((error_num = spider->check_error_mode_eof(error_num)) == HA_ERR_END_OF_FILE)
+            {
+              table->status = STATUS_NOT_FOUND;
+            }
+            DBUG_RETURN(error_num);
+          }
+        }
+      }
+#endif
+      spider->use_pre_call = FALSE;
+    }
+  } else if (offset_limit)
+  {
+    --offset_limit;
+    DBUG_RETURN(0);
+  }
+  if ((error_num = spider_db_seek_next(table->record[0], spider,
+    spider->search_link_idx, table)))
+  {
+    if ((error_num = spider->check_error_mode_eof(error_num)) == HA_ERR_END_OF_FILE)
+    {
+      table->status = STATUS_NOT_FOUND;
+    }
+    DBUG_RETURN(error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_group_by_handler::end_scan()
+{
+  DBUG_ENTER("spider_group_by_handler::end_scan");
+  DBUG_RETURN(0);
+}
+
+group_by_handler *spider_create_group_by_handler(
+  THD *thd,
+  Query *query
+) {
+  spider_group_by_handler *group_by_handler;
+  Item *item;
+  TABLE_LIST *from;
+  SPIDER_CONN *conn;
+  ha_spider *spider;
+  SPIDER_SHARE *share;
+  int roop_count, lock_mode;
+  List_iterator_fast<Item> it(*query->select);
+  uchar dbton_bitmap[spider_bitmap_size(SPIDER_DBTON_SIZE)];
+  uchar dbton_bitmap_tmp[spider_bitmap_size(SPIDER_DBTON_SIZE)];
+  ORDER *order;
+  bool keep_going;
+  bool find_dbton = FALSE;
+  spider_fields *fields = NULL, *fields_arg = NULL;
+  uint table_idx, dbton_id;
+  long tgt_link_status;
+  DBUG_ENTER("spider_create_group_by_handler");
+
+  switch (thd_sql_command(thd))
+  {
+    case SQLCOM_UPDATE:
+    case SQLCOM_UPDATE_MULTI:
+    case SQLCOM_DELETE:
+    case SQLCOM_DELETE_MULTI:
+      DBUG_PRINT("info",("spider update and delete does not support this feature"));
+      DBUG_RETURN(NULL);
+    default:
+      break;
+  }
+
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  from = query->from;
+  do {
+    DBUG_PRINT("info",("spider from=%p", from));
+    if (from->table->const_table)
+      continue;
+    if (from->table->part_info)
+    {
+      DBUG_PRINT("info",("spider partition handler"));
+#if defined(PARTITION_HAS_GET_CHILD_HANDLERS)
+      partition_info *part_info = from->table->part_info;
+      uint bits = bitmap_bits_set(&part_info->read_partitions);
+      DBUG_PRINT("info",("spider bits=%u", bits));
+      if (bits != 1)
+      {
+        DBUG_PRINT("info",("spider using multiple partitions is not supported by this feature yet"));
+#else
+        DBUG_PRINT("info",("spider partition is not supported by this feature yet"));
+#endif
+        DBUG_RETURN(NULL);
+#if defined(PARTITION_HAS_GET_CHILD_HANDLERS)
+      }
+#endif
+    }
+  } while ((from = from->next_local));
+#endif
+
+  table_idx = 0;
+  from = query->from;
+  while (from && from->table->const_table)
+  {
+    from = from->next_local;
+  }
+  if (!from)
+  {
+    /* all tables are const_table */
+    DBUG_RETURN(NULL);
+  }
+#if defined(PARTITION_HAS_GET_CHILD_HANDLERS)
+  if (from->table->part_info)
+  {
+    partition_info *part_info = from->table->part_info;
+    uint part = bitmap_get_first_set(&part_info->read_partitions);
+    ha_partition *partition = (ha_partition *) from->table->file;
+    handler **handlers = partition->get_child_handlers();
+    spider = (ha_spider *) handlers[part];
+  } else {
+#endif
+    spider = (ha_spider *) from->table->file;
+#if defined(PARTITION_HAS_GET_CHILD_HANDLERS)
+  }
+#endif
+  share = spider->share;
+  spider->idx_for_direct_join = table_idx;
+  ++table_idx;
+  memset(dbton_bitmap, 0, spider_bitmap_size(SPIDER_DBTON_SIZE));
+  for (roop_count = 0; roop_count < (int) share->use_dbton_count; ++roop_count)
+  {
+    dbton_id = share->use_sql_dbton_ids[roop_count];
+    if (
+      spider_dbton[dbton_id].support_direct_join &&
+      spider_dbton[dbton_id].support_direct_join()
+    ) {
+      spider_set_bit(dbton_bitmap, dbton_id);
+    }
+  }
+  while ((from = from->next_local))
+  {
+    if (from->table->const_table)
+      continue;
+#if defined(PARTITION_HAS_GET_CHILD_HANDLERS)
+    if (from->table->part_info)
+    {
+      partition_info *part_info = from->table->part_info;
+      uint part = bitmap_get_first_set(&part_info->read_partitions);
+      ha_partition *partition = (ha_partition *) from->table->file;
+      handler **handlers = partition->get_child_handlers();
+      spider = (ha_spider *) handlers[part];
+    } else {
+#endif
+      spider = (ha_spider *) from->table->file;
+#if defined(PARTITION_HAS_GET_CHILD_HANDLERS)
+    }
+#endif
+    share = spider->share;
+    spider->idx_for_direct_join = table_idx;
+    ++table_idx;
+    memset(dbton_bitmap_tmp, 0, spider_bitmap_size(SPIDER_DBTON_SIZE));
+    for (roop_count = 0; roop_count < (int) share->use_dbton_count; ++roop_count)
+    {
+      dbton_id = share->use_sql_dbton_ids[roop_count];
+      if (
+        spider_dbton[dbton_id].support_direct_join &&
+        spider_dbton[dbton_id].support_direct_join()
+      ) {
+        spider_set_bit(dbton_bitmap_tmp, dbton_id);
+      }
+    }
+    for (roop_count = 0;
+      roop_count < spider_bitmap_size(SPIDER_DBTON_SIZE); ++roop_count)
+    {
+      dbton_bitmap[roop_count] &= dbton_bitmap_tmp[roop_count];
+    }
+  }
+
+  from = query->from;
+  do {
+    if (from->table->const_table)
+      continue;
+#if defined(PARTITION_HAS_GET_CHILD_HANDLERS)
+    if (from->table->part_info)
+    {
+      partition_info *part_info = from->table->part_info;
+      uint part = bitmap_get_first_set(&part_info->read_partitions);
+      ha_partition *partition = (ha_partition *) from->table->file;
+      handler **handlers = partition->get_child_handlers();
+      spider = (ha_spider *) handlers[part];
+    } else {
+#endif
+      spider = (ha_spider *) from->table->file;
+#if defined(PARTITION_HAS_GET_CHILD_HANDLERS)
+    }
+#endif
+    share = spider->share;
+    if (spider_param_skip_default_condition(thd,
+      share->skip_default_condition))
+    {
+      /* find skip_default_condition = 1 */
+      break;
+    }
+  } while ((from = from->next_local));
+
+  for (roop_count = 0; roop_count < SPIDER_DBTON_SIZE; ++roop_count)
+  {
+    if (spider_bit_is_set(dbton_bitmap, roop_count))
+    {
+      if (!fields)
+      {
+        fields_arg = new spider_fields();
+        if (!fields_arg)
+        {
+          DBUG_RETURN(NULL);
+        }
+      }
+      keep_going = TRUE;
+      it.init(*query->select);
+      while ((item = it++))
+      {
+        DBUG_PRINT("info",("spider select item=%p", item));
+        if (item->const_item())
+        {
+          DBUG_PRINT("info",("spider const item"));
+          continue;
+        }
+        if (spider_db_print_item_type(item, NULL, spider, NULL, NULL, 0,
+          roop_count, TRUE, fields_arg))
+        {
+          DBUG_PRINT("info",("spider dbton_id=%d can't create select", roop_count));
+          spider_clear_bit(dbton_bitmap, roop_count);
+          keep_going = FALSE;
+          break;
+        }
+      }
+      if (keep_going)
+      {
+        if (spider_dbton[roop_count].db_util->append_from_and_tables(
+          spider, fields_arg, NULL, query->from, table_idx))
+        {
+          DBUG_PRINT("info",("spider dbton_id=%d can't create from", roop_count));
+          spider_clear_bit(dbton_bitmap, roop_count);
+          keep_going = FALSE;
+        }
+      }
+      if (keep_going)
+      {
+        DBUG_PRINT("info",("spider query->where=%p", query->where));
+        if (query->where)
+        {
+          if (spider_db_print_item_type(query->where, NULL, spider, NULL, NULL, 0,
+            roop_count, TRUE, fields_arg))
+          {
+            DBUG_PRINT("info",("spider dbton_id=%d can't create where", roop_count));
+            spider_clear_bit(dbton_bitmap, roop_count);
+            keep_going = FALSE;
+          }
+        }
+      }
+      if (keep_going)
+      {
+        DBUG_PRINT("info",("spider query->group_by=%p", query->group_by));
+        if (query->group_by)
+        {
+          for (order = query->group_by; order; order = order->next)
+          {
+            if (spider_db_print_item_type((*order->item), NULL, spider, NULL, NULL, 0,
+              roop_count, TRUE, fields_arg))
+            {
+              DBUG_PRINT("info",("spider dbton_id=%d can't create group by", roop_count));
+              spider_clear_bit(dbton_bitmap, roop_count);
+              keep_going = FALSE;
+              break;
+            }
+          }
+        }
+      }
+      if (keep_going)
+      {
+        DBUG_PRINT("info",("spider query->order_by=%p", query->order_by));
+        if (query->order_by)
+        {
+          for (order = query->order_by; order; order = order->next)
+          {
+            if (spider_db_print_item_type((*order->item), NULL, spider, NULL, NULL, 0,
+              roop_count, TRUE, fields_arg))
+            {
+              DBUG_PRINT("info",("spider dbton_id=%d can't create order by", roop_count));
+              spider_clear_bit(dbton_bitmap, roop_count);
+              keep_going = FALSE;
+              break;
+            }
+          }
+        }
+      }
+      if (keep_going)
+      {
+        DBUG_PRINT("info",("spider query->having=%p", query->having));
+        if (query->having)
+        {
+          if (spider_db_print_item_type(query->having, NULL, spider, NULL, NULL, 0,
+            roop_count, TRUE, fields_arg))
+          {
+            DBUG_PRINT("info",("spider dbton_id=%d can't create having", roop_count));
+            spider_clear_bit(dbton_bitmap, roop_count);
+            keep_going = FALSE;
+          }
+        }
+      }
+      if (keep_going)
+      {
+        find_dbton = TRUE;
+        fields = fields_arg;
+        fields_arg = NULL;
+      } else {
+        delete fields_arg;
+      }
+    }
+  }
+  if (!find_dbton)
+  {
+    DBUG_RETURN(NULL);
+  }
+
+  if (fields->create_table_holder(table_idx))
+  {
+    delete fields;
+    DBUG_RETURN(NULL);
+  }
+
+  from = query->from;
+  while (from->table->const_table)
+  {
+    from = from->next_local;
+  }
+#if defined(PARTITION_HAS_GET_CHILD_HANDLERS)
+  if (from->table->part_info)
+  {
+    partition_info *part_info = from->table->part_info;
+    uint part = bitmap_get_first_set(&part_info->read_partitions);
+    ha_partition *partition = (ha_partition *) from->table->file;
+    handler **handlers = partition->get_child_handlers();
+    spider = (ha_spider *) handlers[part];
+  } else {
+#endif
+    spider = (ha_spider *) from->table->file;
+#if defined(PARTITION_HAS_GET_CHILD_HANDLERS)
+  }
+#endif
+  share = spider->share;
+  lock_mode = spider_conn_lock_mode(spider);
+  if (lock_mode)
+  {
+    tgt_link_status = SPIDER_LINK_STATUS_RECOVERY;
+  } else {
+    tgt_link_status = SPIDER_LINK_STATUS_OK;
+  }
+  DBUG_PRINT("info",("spider s->db=%s", from->table->s->db.str));
+  DBUG_PRINT("info",("spider s->table_name=%s", from->table->s->table_name.str));
+  if (!fields->add_table(spider))
+  {
+    DBUG_PRINT("info",("spider can not add a table"));
+    delete fields;
+    DBUG_RETURN(NULL);
+  }
+  if (spider->dml_init())
+  {
+    DBUG_PRINT("info",("spider can not init for dml"));
+    delete fields;
+    DBUG_RETURN(NULL);
+  }
+  for (
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, -1, share->link_count,
+      tgt_link_status);
+    roop_count < (int) share->link_count;
+    roop_count = spider_conn_link_idx_next(share->link_statuses,
+      spider->conn_link_idx, roop_count, share->link_count,
+      tgt_link_status)
+  ) {
+    if (spider_param_use_handler(thd, share->use_handlers[roop_count]))
+    {
+      DBUG_PRINT("info",("spider direct_join does not support use_handler"));
+      if (lock_mode)
+      {
+        delete fields;
+        DBUG_RETURN(NULL);
+      }
+      continue;
+    }
+    conn = spider->conns[roop_count];
+    DBUG_PRINT("info",("spider roop_count=%d", roop_count));
+    DBUG_PRINT("info",("spider conn=%p", conn));
+    DBUG_ASSERT(conn);
+    if (conn->table_lock)
+    {
+      DBUG_PRINT("info",("spider direct_join does not support with lock tables yet"));
+      if (lock_mode)
+      {
+        delete fields;
+        DBUG_RETURN(NULL);
+      }
+      continue;
+    }
+    if (!fields->add_conn(conn,
+      share->access_balances[spider->conn_link_idx[roop_count]]))
+    {
+      DBUG_PRINT("info",("spider can not create conn_holder"));
+      delete fields;
+      DBUG_RETURN(NULL);
+    }
+    if (fields->add_link_idx(conn->conn_holder_for_direct_join, spider, roop_count))
+    {
+      DBUG_PRINT("info",("spider can not create link_idx_holder"));
+      delete fields;
+      DBUG_RETURN(NULL);
+    }
+  }
+  if (!fields->has_conn_holder())
+  {
+    delete fields;
+    DBUG_RETURN(NULL);
+  }
+
+  while ((from = from->next_local))
+  {
+    if (from->table->const_table)
+      continue;
+    fields->clear_conn_holder_from_conn();
+
+#if defined(PARTITION_HAS_GET_CHILD_HANDLERS)
+    if (from->table->part_info)
+    {
+      partition_info *part_info = from->table->part_info;
+      uint part = bitmap_get_first_set(&part_info->read_partitions);
+      ha_partition *partition = (ha_partition *) from->table->file;
+      handler **handlers = partition->get_child_handlers();
+      spider = (ha_spider *) handlers[part];
+    } else {
+#endif
+      spider = (ha_spider *) from->table->file;
+#if defined(PARTITION_HAS_GET_CHILD_HANDLERS)
+    }
+#endif
+    share = spider->share;
+    if (!fields->add_table(spider))
+    {
+      DBUG_PRINT("info",("spider can not add a table"));
+      delete fields;
+      DBUG_RETURN(NULL);
+    }
+    DBUG_PRINT("info",("spider s->db=%s", from->table->s->db.str));
+    DBUG_PRINT("info",("spider s->table_name=%s", from->table->s->table_name.str));
+    if (spider->dml_init())
+    {
+      DBUG_PRINT("info",("spider can not init for dml"));
+      delete fields;
+      DBUG_RETURN(NULL);
+    }
+    for (
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        spider->conn_link_idx, -1, share->link_count,
+        tgt_link_status);
+      roop_count < (int) share->link_count;
+      roop_count = spider_conn_link_idx_next(share->link_statuses,
+        spider->conn_link_idx, roop_count, share->link_count,
+        tgt_link_status)
+    ) {
+      DBUG_PRINT("info",("spider roop_count=%d", roop_count));
+      if (spider_param_use_handler(thd, share->use_handlers[roop_count]))
+      {
+        DBUG_PRINT("info",("spider direct_join does not support use_handler"));
+        if (lock_mode)
+        {
+          delete fields;
+          DBUG_RETURN(NULL);
+        }
+        continue;
+      }
+      conn = spider->conns[roop_count];
+      DBUG_PRINT("info",("spider conn=%p", conn));
+      if (!fields->check_conn_same_conn(conn))
+      {
+        DBUG_PRINT("info",("spider connection %p can not be used for this query with locking",
+          conn));
+        if (lock_mode)
+        {
+          delete fields;
+          DBUG_RETURN(NULL);
+        }
+        continue;
+      }
+      if (fields->add_link_idx(conn->conn_holder_for_direct_join, spider, roop_count))
+      {
+        DBUG_PRINT("info",("spider can not create link_idx_holder"));
+        delete fields;
+        DBUG_RETURN(NULL);
+      }
+    }
+
+    if (fields->remove_conn_if_not_checked())
+    {
+      if (lock_mode)
+      {
+        DBUG_PRINT("info",("spider some connections can not be used for this query with locking"));
+        delete fields;
+        DBUG_RETURN(NULL);
+      }
+    }
+    if (!fields->has_conn_holder())
+    {
+      delete fields;
+      DBUG_RETURN(NULL);
+    }
+  }
+
+  if (!fields->all_query_fields_are_query_table_members())
+  {
+    DBUG_PRINT("info", ("spider found a query field that is not a query table member"));
+    delete fields;
+    DBUG_RETURN(NULL);
+  }
+
+  fields->check_support_dbton(dbton_bitmap);
+  if (!fields->has_conn_holder())
+  {
+    DBUG_PRINT("info",("spider all chosen connections can't match dbton_id"));
+    delete fields;
+    DBUG_RETURN(NULL);
+  }
+
+  /* choose a connection */
+  if (!lock_mode)
+  {
+    fields->choose_a_conn();
+  }
+
+  if (fields->make_link_idx_chain(tgt_link_status))
+  {
+    DBUG_PRINT("info",("spider can not create link_idx_chain"));
+    delete fields;
+    DBUG_RETURN(NULL);
+  }
+
+  /* choose link_id */
+  if (fields->check_link_ok_chain())
+  {
+    DBUG_PRINT("info",("spider do not have link ok status"));
+    delete fields;
+    DBUG_RETURN(NULL);
+  }
+
+  fields->set_first_link_idx();
+
+  if (!(group_by_handler = new spider_group_by_handler(thd, query, fields)))
+  {
+    DBUG_PRINT("info",("spider can't create group_by_handler"));
+    delete fields;
+    DBUG_RETURN(NULL);
+  }
+  query->distinct = FALSE;
+  query->where = NULL;
+  query->group_by = NULL;
+  query->having = NULL;
+  query->order_by = NULL;
+  DBUG_RETURN(group_by_handler);
+}
+#endif
diff --git a/storage/spider/spd_group_by_handler.h b/storage/spider/spd_group_by_handler.h
new file mode 100644
index 00000000..09f82168
--- /dev/null
+++ b/storage/spider/spd_group_by_handler.h
@@ -0,0 +1,44 @@
+/* Copyright (C) 2016 Kentoku Shiba
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
+
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+class spider_group_by_handler: public group_by_handler
+{
+  Query query;
+  spider_fields *fields;
+  ha_spider *spider;
+  SPIDER_TRX *trx;
+  spider_db_result *result;
+  bool first;
+  longlong offset_limit;
+  int store_error;
+
+public:
+  spider_group_by_handler(
+    THD *thd_arg,
+    Query *query_arg,
+    spider_fields *fields_arg
+  );
+  ~spider_group_by_handler();
+  int init_scan();
+  int next_row();
+  int end_scan();
+};
+
+group_by_handler *spider_create_group_by_handler(
+  THD *thd,
+  Query *query
+);
+#endif
diff --git a/storage/spider/spd_i_s.cc b/storage/spider/spd_i_s.cc
new file mode 100644
index 00000000..24000f3e
--- /dev/null
+++ b/storage/spider/spd_i_s.cc
@@ -0,0 +1,311 @@
+/* Copyright (C) 2012-2020 Kentoku Shiba
+   Copyright (C) 2020 MariaDB corp
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+#define MYSQL_SERVER 1
+#include <my_global.h>
+#include "mysql_version.h"
+#include "spd_environ.h"
+#if MYSQL_VERSION_ID < 50500
+#include "mysql_priv.h"
+#include <mysql/plugin.h>
+#else
+#include "sql_priv.h"
+#include "probes_mysql.h"
+#include "sql_class.h"
+#include "sql_partition.h"
+#include "sql_show.h"
+#endif
+#include "spd_db_include.h"
+#include "spd_include.h"
+#include "spd_table.h"
+
+extern pthread_mutex_t spider_mem_calc_mutex;
+
+extern const char *spider_alloc_func_name[SPIDER_MEM_CALC_LIST_NUM];
+extern const char *spider_alloc_file_name[SPIDER_MEM_CALC_LIST_NUM];
+extern ulong      spider_alloc_line_no[SPIDER_MEM_CALC_LIST_NUM];
+extern ulonglong  spider_total_alloc_mem[SPIDER_MEM_CALC_LIST_NUM];
+extern longlong   spider_current_alloc_mem[SPIDER_MEM_CALC_LIST_NUM];
+extern ulonglong  spider_alloc_mem_count[SPIDER_MEM_CALC_LIST_NUM];
+extern ulonglong  spider_free_mem_count[SPIDER_MEM_CALC_LIST_NUM];
+
+static struct st_mysql_storage_engine spider_i_s_info =
+{ MYSQL_INFORMATION_SCHEMA_INTERFACE_VERSION };
+
+namespace Show {
+#ifdef SPIDER_I_S_USE_SHOW_FOR_COLUMN
+static ST_FIELD_INFO spider_i_s_alloc_mem_fields_info[] =
+{
+  Column("ID",                ULong(10),     NOT_NULL, "id"),
+  Column("FUNC_NAME",         Varchar(64),   NULLABLE, "func_name"),
+  Column("FILE_NAME",         Varchar(64),   NULLABLE, "file_name"),
+  Column("LINE_NO",           ULong(10),     NULLABLE, "line_no"),
+  Column("TOTAL_ALLOC_MEM",   ULonglong(20), NULLABLE, "total_alloc_mem"),
+  Column("CURRENT_ALLOC_MEM", SLonglong(20), NULLABLE, "current_alloc_mem"),
+  Column("ALLOC_MEM_COUNT",   ULonglong(20), NULLABLE, "alloc_mem_count"),
+  Column("FREE_MEM_COUNT",    ULonglong(20), NULLABLE, "free_mem_count"),
+  CEnd()
+};
+#else
+static ST_FIELD_INFO spider_i_s_alloc_mem_fields_info[] =
+{
+  {"ID", 10, MYSQL_TYPE_LONG, 0, MY_I_S_UNSIGNED, "id", SKIP_OPEN_TABLE},
+  {"FUNC_NAME", 64, MYSQL_TYPE_STRING, 0,
+    MY_I_S_MAYBE_NULL, "func_name", SKIP_OPEN_TABLE},
+  {"FILE_NAME", 64, MYSQL_TYPE_STRING, 0,
+    MY_I_S_MAYBE_NULL, "file_name", SKIP_OPEN_TABLE},
+  {"LINE_NO", 10, MYSQL_TYPE_LONG, 0,
+    MY_I_S_UNSIGNED | MY_I_S_MAYBE_NULL, "line_no", SKIP_OPEN_TABLE},
+  {"TOTAL_ALLOC_MEM", 20, MYSQL_TYPE_LONGLONG, 0,
+    MY_I_S_UNSIGNED | MY_I_S_MAYBE_NULL, "total_alloc_mem", SKIP_OPEN_TABLE},
+  {"CURRENT_ALLOC_MEM", 20, MYSQL_TYPE_LONGLONG, 0,
+    MY_I_S_MAYBE_NULL, "current_alloc_mem", SKIP_OPEN_TABLE},
+  {"ALLOC_MEM_COUNT", 20, MYSQL_TYPE_LONGLONG, 0,
+    MY_I_S_UNSIGNED | MY_I_S_MAYBE_NULL, "alloc_mem_count", SKIP_OPEN_TABLE},
+  {"FREE_MEM_COUNT", 20, MYSQL_TYPE_LONGLONG, 0,
+    MY_I_S_UNSIGNED | MY_I_S_MAYBE_NULL, "free_mem_count", SKIP_OPEN_TABLE},
+  {NULL, 0,  MYSQL_TYPE_STRING, 0, 0, NULL, 0}
+};
+#endif
+} // namespace Show
+
+static int spider_i_s_alloc_mem_fill_table(
+  THD *thd,
+  TABLE_LIST *tables,
+  COND *cond
+) {
+  uint roop_count;
+  TABLE *table = tables->table;
+  DBUG_ENTER("spider_i_s_alloc_mem_fill_table");
+  for (roop_count = 0; roop_count < SPIDER_MEM_CALC_LIST_NUM; roop_count++)
+  {
+    table->field[0]->store(roop_count, TRUE);
+    if (spider_alloc_func_name[roop_count])
+    {
+      table->field[1]->set_notnull();
+      table->field[2]->set_notnull();
+      table->field[3]->set_notnull();
+      table->field[4]->set_notnull();
+      table->field[5]->set_notnull();
+      table->field[6]->set_notnull();
+      table->field[7]->set_notnull();
+      table->field[1]->store(spider_alloc_func_name[roop_count],
+        strlen(spider_alloc_func_name[roop_count]), system_charset_info);
+      table->field[2]->store(spider_alloc_file_name[roop_count],
+        strlen(spider_alloc_file_name[roop_count]), system_charset_info);
+      table->field[3]->store(spider_alloc_line_no[roop_count], TRUE);
+      pthread_mutex_lock(&spider_mem_calc_mutex);
+      table->field[4]->store(spider_total_alloc_mem[roop_count], TRUE);
+      table->field[5]->store(spider_current_alloc_mem[roop_count], FALSE);
+      table->field[6]->store(spider_alloc_mem_count[roop_count], TRUE);
+      table->field[7]->store(spider_free_mem_count[roop_count], TRUE);
+      pthread_mutex_unlock(&spider_mem_calc_mutex);
+    } else {
+      table->field[1]->set_null();
+      table->field[2]->set_null();
+      table->field[3]->set_null();
+      table->field[4]->set_null();
+      table->field[5]->set_null();
+      table->field[6]->set_null();
+      table->field[7]->set_null();
+    }
+    if (schema_table_store_record(thd, table))
+    {
+      DBUG_RETURN(1);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+static int spider_i_s_alloc_mem_init(
+  void *p
+) {
+  ST_SCHEMA_TABLE *schema = (ST_SCHEMA_TABLE *) p;
+  DBUG_ENTER("spider_i_s_alloc_mem_init");
+  schema->fields_info = Show::spider_i_s_alloc_mem_fields_info;
+  schema->fill_table = spider_i_s_alloc_mem_fill_table;
+  schema->idx_field1 = 0;
+  DBUG_RETURN(0);
+}
+
+static int spider_i_s_alloc_mem_deinit(
+  void *p
+) {
+  DBUG_ENTER("spider_i_s_alloc_mem_deinit");
+  DBUG_RETURN(0);
+}
+
+struct st_mysql_plugin spider_i_s_alloc_mem =
+{
+  MYSQL_INFORMATION_SCHEMA_PLUGIN,
+  &spider_i_s_info,
+  "SPIDER_ALLOC_MEM",
+  "Kentoku Shiba",
+  "Spider memory allocating viewer",
+  PLUGIN_LICENSE_GPL,
+  spider_i_s_alloc_mem_init,
+  spider_i_s_alloc_mem_deinit,
+  0x0001,
+  NULL,
+  NULL,
+  NULL,
+#if MYSQL_VERSION_ID >= 50600
+  0,
+#endif
+};
+
+#ifdef MARIADB_BASE_VERSION
+struct st_maria_plugin spider_i_s_alloc_mem_maria =
+{
+  MYSQL_INFORMATION_SCHEMA_PLUGIN,
+  &spider_i_s_info,
+  "SPIDER_ALLOC_MEM",
+  "Kentoku Shiba",
+  "Spider memory allocating viewer",
+  PLUGIN_LICENSE_GPL,
+  spider_i_s_alloc_mem_init,
+  spider_i_s_alloc_mem_deinit,
+  0x0100,
+  NULL,
+  NULL,
+  "1.0",
+  MariaDB_PLUGIN_MATURITY_STABLE,
+};
+#endif
+
+extern SPIDER_DBTON spider_dbton[SPIDER_DBTON_SIZE];
+
+namespace Show {
+#ifdef SPIDER_I_S_USE_SHOW_FOR_COLUMN
+static ST_FIELD_INFO spider_i_s_wrapper_protocols_fields_info[] =
+{
+  Column("WRAPPER_NAME",        Varchar(NAME_CHAR_LEN), NOT_NULL, ""),
+  Column("WRAPPER_VERSION",     Varchar(20),            NOT_NULL, ""),
+  Column("WRAPPER_DESCRIPTION", Longtext(65535),        NULLABLE, ""),
+  Column("WRAPPER_MATURITY",    Varchar(12),            NOT_NULL, ""),
+  CEnd()
+};
+#else
+static ST_FIELD_INFO spider_i_s_wrapper_protocols_fields_info[] =
+{
+  {"WRAPPER_NAME", NAME_CHAR_LEN, MYSQL_TYPE_STRING, 0, 0, 0, SKIP_OPEN_TABLE},
+  {"WRAPPER_VERSION", 20, MYSQL_TYPE_STRING, 0, 0, 0, SKIP_OPEN_TABLE},
+  {"WRAPPER_DESCRIPTION", 65535, MYSQL_TYPE_STRING, 0, 1, 0, SKIP_OPEN_TABLE},
+  {"WRAPPER_MATURITY", 12, MYSQL_TYPE_STRING, 0, 0, 0, SKIP_OPEN_TABLE},
+  {0, 0,  MYSQL_TYPE_STRING, 0, 0, 0, 0}
+};
+#endif
+} // namespace Show
+
+static int spider_i_s_wrapper_protocols_fill_table(
+  THD *thd,
+  TABLE_LIST *tables,
+  COND *cond
+) {
+  uint roop_count;
+  SPIDER_DBTON *dbton;
+  TABLE *table = tables->table;
+  DBUG_ENTER("spider_i_s_wrapper_protocols_fill_table");
+  for (roop_count = 0; roop_count < SPIDER_DBTON_SIZE; roop_count++)
+  {
+    dbton = &spider_dbton[roop_count];
+    if (!dbton->wrapper)
+    {
+      continue;
+    }
+    table->field[0]->store(dbton->wrapper,
+      strlen(dbton->wrapper), system_charset_info);
+    table->field[1]->store(dbton->version_info,
+      strlen(dbton->version_info), system_charset_info);
+    if (dbton->descr)
+    {
+      table->field[2]->set_notnull();
+      table->field[2]->store(dbton->descr,
+        strlen(dbton->descr), system_charset_info);
+    } else {
+      table->field[2]->set_null();
+    }
+    if (dbton->maturity <= SPIDER_MATURITY_STABLE)
+    {
+      table->field[3]->store(maturity_name[dbton->maturity].str,
+        maturity_name[dbton->maturity].length, system_charset_info);
+    } else {
+      table->field[3]->store(maturity_name[0].str,
+        maturity_name[0].length, system_charset_info);
+    }
+    if (schema_table_store_record(thd, table))
+    {
+      DBUG_RETURN(1);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+static int spider_i_s_wrapper_protocols_init(
+  void *p
+) {
+  ST_SCHEMA_TABLE *schema = (ST_SCHEMA_TABLE *) p;
+  DBUG_ENTER("spider_i_s_wrapper_protocols_init");
+  schema->fields_info = Show::spider_i_s_wrapper_protocols_fields_info;
+  schema->fill_table = spider_i_s_wrapper_protocols_fill_table;
+  schema->idx_field1 = 0;
+  DBUG_RETURN(0);
+}
+
+static int spider_i_s_wrapper_protocols_deinit(
+  void *p
+) {
+  DBUG_ENTER("spider_i_s_wrapper_protocols_deinit");
+  DBUG_RETURN(0);
+}
+
+struct st_mysql_plugin spider_i_s_wrapper_protocols =
+{
+  MYSQL_INFORMATION_SCHEMA_PLUGIN,
+  &spider_i_s_info,
+  "SPIDER_WRAPPER_PROTOCOLS",
+  "Kentoku Shiba, MariaDB Corp",
+  "Available wrapper protocols of Spider",
+  PLUGIN_LICENSE_GPL,
+  spider_i_s_wrapper_protocols_init,
+  spider_i_s_wrapper_protocols_deinit,
+  0x0001,
+  NULL,
+  NULL,
+  NULL,
+#if MYSQL_VERSION_ID >= 50600
+  0,
+#endif
+};
+
+#ifdef MARIADB_BASE_VERSION
+struct st_maria_plugin spider_i_s_wrapper_protocols_maria =
+{
+  MYSQL_INFORMATION_SCHEMA_PLUGIN,
+  &spider_i_s_info,
+  "SPIDER_WRAPPER_PROTOCOLS",
+  "Kentoku Shiba, MariaDB Corp",
+  "Available wrapper protocols of Spider",
+  PLUGIN_LICENSE_GPL,
+  spider_i_s_wrapper_protocols_init,
+  spider_i_s_wrapper_protocols_deinit,
+  0x0100,
+  NULL,
+  NULL,
+  "1.0",
+  MariaDB_PLUGIN_MATURITY_STABLE,
+};
+#endif
diff --git a/storage/spider/spd_include.h b/storage/spider/spd_include.h
new file mode 100644
index 00000000..bf6c415b
--- /dev/null
+++ b/storage/spider/spd_include.h
@@ -0,0 +1,1609 @@
+/* Copyright (C) 2008-2020 Kentoku Shiba
+   Copyright (C) 2019-2020 MariaDB corp
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+#define SPIDER_DETAIL_VERSION "3.3.15"
+#define SPIDER_HEX_VERSION 0x0303
+
+#if MYSQL_VERSION_ID < 50500
+#define spider_my_free(A,B) my_free(A,B)
+#define pthread_mutex_assert_owner(A)
+#define pthread_mutex_assert_not_owner(A)
+#else
+#define spider_my_free(A,B) my_free(A)
+#ifdef pthread_mutex_t
+#undef pthread_mutex_t
+#endif
+#define pthread_mutex_t mysql_mutex_t
+#ifdef pthread_mutex_lock
+#undef pthread_mutex_lock
+#endif
+#define pthread_mutex_lock mysql_mutex_lock
+#ifdef pthread_mutex_trylock
+#undef pthread_mutex_trylock
+#endif
+#define pthread_mutex_trylock mysql_mutex_trylock
+#ifdef pthread_mutex_unlock
+#undef pthread_mutex_unlock
+#endif
+#define pthread_mutex_unlock mysql_mutex_unlock
+#ifdef pthread_mutex_destroy
+#undef pthread_mutex_destroy
+#endif
+#define pthread_mutex_destroy mysql_mutex_destroy
+#define pthread_mutex_assert_owner(A) mysql_mutex_assert_owner(A)
+#define pthread_mutex_assert_not_owner(A) mysql_mutex_assert_not_owner(A)
+#ifdef pthread_cond_t
+#undef pthread_cond_t
+#endif
+#define pthread_cond_t mysql_cond_t
+#ifdef pthread_cond_wait
+#undef pthread_cond_wait
+#endif
+#define pthread_cond_wait mysql_cond_wait
+#ifdef pthread_cond_timedwait
+#undef pthread_cond_timedwait
+#endif
+#define pthread_cond_timedwait mysql_cond_timedwait
+#ifdef pthread_cond_signal
+#undef pthread_cond_signal
+#endif
+#define pthread_cond_signal mysql_cond_signal
+#ifdef pthread_cond_broadcast
+#undef pthread_cond_broadcast
+#endif
+#define pthread_cond_broadcast mysql_cond_broadcast
+#ifdef pthread_cond_destroy
+#undef pthread_cond_destroy
+#endif
+#define pthread_cond_destroy mysql_cond_destroy
+#define my_sprintf(A,B) sprintf B
+#endif
+
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100004
+#define spider_stmt_da_message(A) thd_get_error_message(A)
+#define spider_stmt_da_sql_errno(A) thd_get_error_number(A)
+#define spider_user_defined_key_parts(A) (A)->user_defined_key_parts
+#define spider_join_table_count(A) (A)->table_count
+#define SPIDER_CAN_BG_UPDATE (1LL << 39)
+#if MYSQL_VERSION_ID >= 100304
+#define SPIDER_ALTER_PARTITION_ADD         ALTER_PARTITION_ADD
+#define SPIDER_ALTER_PARTITION_DROP        ALTER_PARTITION_DROP
+#define SPIDER_ALTER_PARTITION_COALESCE    ALTER_PARTITION_COALESCE
+#define SPIDER_ALTER_PARTITION_REORGANIZE  ALTER_PARTITION_REORGANIZE
+#define SPIDER_ALTER_PARTITION_TABLE_REORG ALTER_PARTITION_TABLE_REORG
+#define SPIDER_ALTER_PARTITION_REBUILD     ALTER_PARTITION_REBUILD
+#else
+#define SPIDER_ALTER_PARTITION_ADD         Alter_info::ALTER_ADD_PARTITION
+#define SPIDER_ALTER_PARTITION_DROP        Alter_info::ALTER_DROP_PARTITION
+#define SPIDER_ALTER_PARTITION_COALESCE    Alter_info::ALTER_COALESCE_PARTITION
+#define SPIDER_ALTER_PARTITION_REORGANIZE  Alter_info::ALTER_REORGANIZE_PARTITION
+#define SPIDER_ALTER_PARTITION_TABLE_REORG Alter_info::ALTER_TABLE_REORG
+#define SPIDER_ALTER_PARTITION_REBUILD     Alter_info::ALTER_REBUILD_PARTITION
+#endif
+#define SPIDER_WARN_LEVEL_WARN            Sql_condition::WARN_LEVEL_WARN
+#define SPIDER_WARN_LEVEL_NOTE            Sql_condition::WARN_LEVEL_NOTE
+#define SPIDER_THD_KILL_CONNECTION        KILL_CONNECTION
+#else
+#if MYSQL_VERSION_ID < 50500
+#define spider_stmt_da_message(A) (A)->main_da.message()
+#define spider_stmt_da_sql_errno(A) (A)->main_da.sql_errno()
+#else
+#if MYSQL_VERSION_ID < 50600
+#define spider_stmt_da_message(A) (A)->stmt_da->message()
+#define spider_stmt_da_sql_errno(A) (A)->stmt_da->sql_errno()
+#else
+#define spider_stmt_da_message(A) (A)->get_stmt_da()->message()
+#define spider_stmt_da_sql_errno(A) (A)->get_stmt_da()->sql_errno()
+#endif
+#endif
+#define spider_user_defined_key_parts(A) (A)->key_parts
+#define spider_join_table_count(A) (A)->tables
+#define SPIDER_ALTER_PARTITION_ADD         ALTER_ADD_PARTITION
+#define SPIDER_ALTER_PARTITION_DROP        ALTER_DROP_PARTITION
+#define SPIDER_ALTER_PARTITION_COALESCE    ALTER_COALESCE_PARTITION
+#define SPIDER_ALTER_PARTITION_REORGANIZE  ALTER_REORGANIZE_PARTITION
+#define SPIDER_ALTER_PARTITION_TABLE_REORG ALTER_TABLE_REORG
+#define SPIDER_ALTER_PARTITION_REBUILD     ALTER_REBUILD_PARTITION
+#define SPIDER_WARN_LEVEL_WARN            MYSQL_ERROR::WARN_LEVEL_WARN
+#define SPIDER_WARN_LEVEL_NOTE            MYSQL_ERROR::WARN_LEVEL_NOTE
+#define SPIDER_THD_KILL_CONNECTION        THD::KILL_CONNECTION
+#endif
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100005
+#define SPIDER_HAS_EXPLAIN_QUERY
+#endif
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100009
+#define SPIDER_TEST(A) MY_TEST(A)
+#else
+#define SPIDER_TEST(A) test(A)
+#endif
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100100
+#define SPIDER_FIELD_FIELDPTR_REQUIRES_THDPTR
+#define SPIDER_ENGINE_CONDITION_PUSHDOWN_IS_ALWAYS_ON
+#define SPIDER_XID_USES_xid_cache_iterate
+#else
+#define SPIDER_XID_STATE_HAS_in_thd
+#endif
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100108
+#define SPIDER_Item_args_arg_count_IS_PROTECTED
+#endif
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100112
+#define SPIDER_Item_func_conv_charset_conv_charset collation.collation
+#else
+#define SPIDER_Item_func_conv_charset_conv_charset conv_charset
+#endif
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100200
+#define SPIDER_WITHOUT_HA_STATISTIC_INCREMENT
+#define SPIDER_init_read_record(A,B,C,D,E,F,G,H) init_read_record(A,B,C,D,E,F,G,H)
+#define SPIDER_HAS_NEXT_THREAD_ID
+#define SPIDER_new_THD(A) (new THD(A))
+#define SPIDER_order_direction_is_asc(A) (A->direction == ORDER::ORDER_ASC)
+#else
+#define SPIDER_init_read_record(A,B,C,D,E,F,G,H) init_read_record(A,B,C,D,F,G,H)
+#define SPIDER_new_THD(A) (new THD())
+#define SPIDER_order_direction_is_asc(A) (A->asc)
+#endif
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100201
+#define SPIDER_HAS_MY_CHARLEN
+#define SPIDER_open_temporary_table
+#endif
+
+#if defined(MARIADB_BASE_VERSION)
+#if MYSQL_VERSION_ID >= 100209
+#define SPIDER_generate_partition_syntax(A,B,C,D,E,F,G,H) generate_partition_syntax(A,B,C,E,F,G)
+#elif MYSQL_VERSION_ID >= 100200
+#define SPIDER_generate_partition_syntax(A,B,C,D,E,F,G,H) generate_partition_syntax(A,B,C,D,E,F,G,H)
+#elif MYSQL_VERSION_ID >= 100007
+#define SPIDER_generate_partition_syntax(A,B,C,D,E,F,G,H) generate_partition_syntax(B,C,D,E,F,G,H)
+#else
+#define SPIDER_generate_partition_syntax(A,B,C,D,E,F,G,H) generate_partition_syntax(B,C,D,E,F,G)
+#endif
+#else
+#define SPIDER_generate_partition_syntax(A,B,C,D,E,F,G,H)
+#endif
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100209
+#define SPIDER_create_partition_name(A,B,C,D,E,F) create_partition_name(A,B,C,D,E,F)
+#define SPIDER_create_subpartition_name(A,B,C,D,E,F) create_subpartition_name(A,B,C,D,E,F)
+#define SPIDER_free_part_syntax(A,B)
+#else
+#define SPIDER_create_partition_name(A,B,C,D,E,F) create_partition_name(A,C,D,E,F)
+#define SPIDER_create_subpartition_name(A,B,C,D,E,F) create_subpartition_name(A,C,D,E,F)
+#define SPIDER_free_part_syntax(A,B) spider_my_free(A,B)
+#endif
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100306
+#define SPIDER_read_record_read_record(A) read_record()
+#define SPIDER_has_Item_with_subquery
+#define SPIDER_use_LEX_CSTRING_for_KEY_Field_name
+#define SPIDER_use_LEX_CSTRING_for_Field_blob_constructor
+#define SPIDER_use_LEX_CSTRING_for_database_tablename_alias
+#define SPIDER_THD_db_str(A) (A)->db.str
+#define SPIDER_THD_db_length(A) (A)->db.length
+#define SPIDER_TABLE_LIST_db_str(A) (A)->db.str
+#define SPIDER_TABLE_LIST_db_length(A) (A)->db.length
+#define SPIDER_TABLE_LIST_table_name_str(A) (A)->table_name.str
+#define SPIDER_TABLE_LIST_table_name_length(A) (A)->table_name.length
+#define SPIDER_TABLE_LIST_alias_str(A) (A)->alias.str
+#define SPIDER_TABLE_LIST_alias_length(A) (A)->alias.length
+#define SPIDER_field_name_str(A) (A)->field_name.str
+#define SPIDER_field_name_length(A) (A)->field_name.length
+#define SPIDER_item_name_str(A) (A)->name.str
+#define SPIDER_item_name_length(A) (A)->name.length
+const LEX_CSTRING SPIDER_empty_string = {"", 0};
+#else
+#define SPIDER_read_record_read_record(A) read_record(A)
+#define SPIDER_THD_db_str(A) (A)->db
+#define SPIDER_THD_db_length(A) (A)->db_length
+#define SPIDER_TABLE_LIST_db_str(A) (A)->db
+#define SPIDER_TABLE_LIST_db_length(A) (A)->db_length
+#define SPIDER_TABLE_LIST_table_name_str(A) (A)->table_name
+#define SPIDER_TABLE_LIST_table_name_length(A) (A)->table_name_length
+#define SPIDER_TABLE_LIST_alias_str(A) (A)->alias
+#define SPIDER_TABLE_LIST_alias_length(A) strlen((A)->alias)
+#define SPIDER_field_name_str(A) (A)->field_name
+#define SPIDER_field_name_length(A) strlen((A)->field_name)
+#define SPIDER_item_name_str(A) (A)->name
+#define SPIDER_item_name_length(A) strlen((A)->name)
+const char SPIDER_empty_string = "";
+#endif
+
+#if MYSQL_VERSION_ID >= 50500
+#define SPIDER_HAS_HASH_VALUE_TYPE
+#endif
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100400
+#define SPIDER_date_mode_t(A) date_mode_t(A)
+#define SPIDER_str_to_datetime(A,B,C,D,E) str_to_datetime_or_date(A,B,C,D,E)
+#define SPIDER_get_linkage(A) A->get_linkage()
+#else
+#define SPIDER_date_mode_t(A) A
+#define SPIDER_str_to_datetime(A,B,C,D,E) str_to_datetime(A,B,C,D,E)
+#define SPIDER_get_linkage(A) A->linkage
+#endif
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100500
+typedef start_new_trans *SPIDER_Open_tables_backup;
+#elif MYSQL_VERSION_ID < 50500
+typedef Open_tables_state SPIDER_Open_tables_backup;
+#else
+typedef Open_tables_backup SPIDER_Open_tables_backup;
+#endif
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100500
+#define SPIDER_reset_n_backup_open_tables_state(A,B,C) do { \
+  if (!(*(B) = new start_new_trans(A))) \
+  { \
+    DBUG_RETURN(C); \
+  } \
+} while (0)
+#define SPIDER_restore_backup_open_tables_state(A,B) do { \
+  (*(B))->restore_old_transaction(); \
+  delete *(B); \
+} while (0)
+#define SPIDER_sys_close_thread_tables(A) (A)->commit_whole_transaction_and_close_tables()
+#else
+#define SPIDER_REQUIRE_DEFINE_FOR_SECONDARY_OPEN_TABLES_BACKUP
+#define SPIDER_reset_n_backup_open_tables_state(A,B,C) (A)->reset_n_backup_open_tables_state(B)
+#define SPIDER_restore_backup_open_tables_state(A,B) (A)->restore_backup_open_tables_state(B)
+#define SPIDER_sys_close_thread_tables(A) close_thread_tables(A)
+#endif
+
+#define spider_bitmap_size(A) ((A + 7) / 8)
+#define spider_set_bit(BITMAP, BIT) \
+  ((BITMAP)[(BIT) / 8] |= (1 << ((BIT) & 7)))
+#define spider_clear_bit(BITMAP, BIT) \
+  ((BITMAP)[(BIT) / 8] &= ~(1 << ((BIT) & 7)))
+#define spider_bit_is_set(BITMAP, BIT) \
+  (uint) ((BITMAP)[(BIT) / 8] & (1 << ((BIT) & 7)))
+
+#define SPIDER_LINK_STATUS_NO_CHANGE         0
+#define SPIDER_LINK_STATUS_OK                1
+#define SPIDER_LINK_STATUS_RECOVERY          2
+#define SPIDER_LINK_STATUS_NG                3
+
+#define SPIDER_LINK_MON_OK                   0
+#define SPIDER_LINK_MON_NG                  -1
+#define SPIDER_LINK_MON_DRAW_FEW_MON         1
+#define SPIDER_LINK_MON_DRAW                 2
+
+#define SPIDER_TMP_SHARE_CHAR_PTR_COUNT     21
+#define SPIDER_TMP_SHARE_UINT_COUNT         SPIDER_TMP_SHARE_CHAR_PTR_COUNT
+#define SPIDER_TMP_SHARE_LONG_COUNT         20
+#define SPIDER_TMP_SHARE_LONGLONG_COUNT      3
+
+#define SPIDER_MEM_CALC_LIST_NUM           314
+#define SPIDER_CONN_META_BUF_LEN           64
+
+#define SPIDER_BACKUP_DASTATUS \
+  bool da_status; if (thd) da_status = thd->is_error(); else da_status = FALSE;
+#define SPIDER_RESTORE_DASTATUS \
+  if (!da_status && thd->is_error()) thd->clear_error();
+#define SPIDER_CONN_RESTORE_DASTATUS \
+  if (thd && conn->error_mode) {SPIDER_RESTORE_DASTATUS;}
+#define SPIDER_CONN_RESTORE_DASTATUS_AND_RESET_ERROR_NUM \
+  if (thd && conn->error_mode) {SPIDER_RESTORE_DASTATUS; error_num = 0;}
+#define SPIDER_CONN_RESTORE_DASTATUS_AND_RESET_TMP_ERROR_NUM \
+  if (thd && conn->error_mode) {SPIDER_RESTORE_DASTATUS; tmp_error_num = 0;}
+
+#define SPIDER_SET_FILE_POS(A) \
+  {(A)->thd = current_thd; (A)->func_name = __func__; (A)->file_name = __FILE__; (A)->line_no = __LINE__;}
+#define SPIDER_CLEAR_FILE_POS(A) \
+  {DBUG_PRINT("info", ("spider thd=%p func_name=%s file_name=%s line_no=%lu", (A)->thd, (A)->func_name ? (A)->func_name : "NULL", (A)->file_name ? (A)->file_name : "NULL", (A)->line_no)); (A)->thd = NULL; (A)->func_name = NULL; (A)->file_name = NULL; (A)->line_no = 0;}
+
+class ha_spider;
+typedef struct st_spider_share SPIDER_SHARE;
+typedef struct st_spider_table_mon_list SPIDER_TABLE_MON_LIST;
+typedef struct st_spider_ip_port_conn SPIDER_IP_PORT_CONN;
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+typedef struct st_spider_thread
+{
+  uint                  thread_idx;
+  THD                   *thd;
+  volatile bool         killed;
+  volatile bool         thd_wait;
+  volatile bool         first_free_wait;
+  volatile bool         init_command;
+  volatile int          error;
+  pthread_t             thread;
+  pthread_cond_t        cond;
+  pthread_mutex_t       mutex;
+  pthread_cond_t        sync_cond;
+  volatile SPIDER_SHARE *queue_first;
+  volatile SPIDER_SHARE *queue_last;
+} SPIDER_THREAD;
+#endif
+
+typedef struct st_spider_file_pos
+{
+  THD                *thd;
+  const char         *func_name;
+  const char         *file_name;
+  ulong              line_no;
+} SPIDER_FILE_POS;
+
+typedef struct st_spider_link_for_hash
+{
+  ha_spider          *spider;
+  int                link_idx;
+  spider_string      *db_table_str;
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  my_hash_value_type db_table_str_hash_value;
+#endif
+} SPIDER_LINK_FOR_HASH;
+
+/* alter table */
+typedef struct st_spider_alter_table
+{
+  bool               now_create;
+  char               *table_name;
+  uint               table_name_length;
+  char               *tmp_char;
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  my_hash_value_type table_name_hash_value;
+#endif
+  longlong           tmp_priority;
+  uint               link_count;
+  uint               all_link_count;
+
+  char               **tmp_server_names;
+  char               **tmp_tgt_table_names;
+  char               **tmp_tgt_dbs;
+  char               **tmp_tgt_hosts;
+  char               **tmp_tgt_usernames;
+  char               **tmp_tgt_passwords;
+  char               **tmp_tgt_sockets;
+  char               **tmp_tgt_wrappers;
+  char               **tmp_tgt_ssl_cas;
+  char               **tmp_tgt_ssl_capaths;
+  char               **tmp_tgt_ssl_certs;
+  char               **tmp_tgt_ssl_ciphers;
+  char               **tmp_tgt_ssl_keys;
+  char               **tmp_tgt_default_files;
+  char               **tmp_tgt_default_groups;
+  char               **tmp_tgt_dsns;
+  char               **tmp_static_link_ids;
+  long               *tmp_tgt_ports;
+  long               *tmp_tgt_ssl_vscs;
+  long               *tmp_monitoring_binlog_pos_at_failing;
+  long               *tmp_link_statuses;
+
+  uint               *tmp_server_names_lengths;
+  uint               *tmp_tgt_table_names_lengths;
+  uint               *tmp_tgt_dbs_lengths;
+  uint               *tmp_tgt_hosts_lengths;
+  uint               *tmp_tgt_usernames_lengths;
+  uint               *tmp_tgt_passwords_lengths;
+  uint               *tmp_tgt_sockets_lengths;
+  uint               *tmp_tgt_wrappers_lengths;
+  uint               *tmp_tgt_ssl_cas_lengths;
+  uint               *tmp_tgt_ssl_capaths_lengths;
+  uint               *tmp_tgt_ssl_certs_lengths;
+  uint               *tmp_tgt_ssl_ciphers_lengths;
+  uint               *tmp_tgt_ssl_keys_lengths;
+  uint               *tmp_tgt_default_files_lengths;
+  uint               *tmp_tgt_default_groups_lengths;
+  uint               *tmp_tgt_dsns_lengths;
+  uint               *tmp_static_link_ids_lengths;
+
+  uint               tmp_server_names_charlen;
+  uint               tmp_tgt_table_names_charlen;
+  uint               tmp_tgt_dbs_charlen;
+  uint               tmp_tgt_hosts_charlen;
+  uint               tmp_tgt_usernames_charlen;
+  uint               tmp_tgt_passwords_charlen;
+  uint               tmp_tgt_sockets_charlen;
+  uint               tmp_tgt_wrappers_charlen;
+  uint               tmp_tgt_ssl_cas_charlen;
+  uint               tmp_tgt_ssl_capaths_charlen;
+  uint               tmp_tgt_ssl_certs_charlen;
+  uint               tmp_tgt_ssl_ciphers_charlen;
+  uint               tmp_tgt_ssl_keys_charlen;
+  uint               tmp_tgt_default_files_charlen;
+  uint               tmp_tgt_default_groups_charlen;
+  uint               tmp_tgt_dsns_charlen;
+  uint               tmp_static_link_ids_charlen;
+
+  uint               tmp_server_names_length;
+  uint               tmp_tgt_table_names_length;
+  uint               tmp_tgt_dbs_length;
+  uint               tmp_tgt_hosts_length;
+  uint               tmp_tgt_usernames_length;
+  uint               tmp_tgt_passwords_length;
+  uint               tmp_tgt_sockets_length;
+  uint               tmp_tgt_wrappers_length;
+  uint               tmp_tgt_ssl_cas_length;
+  uint               tmp_tgt_ssl_capaths_length;
+  uint               tmp_tgt_ssl_certs_length;
+  uint               tmp_tgt_ssl_ciphers_length;
+  uint               tmp_tgt_ssl_keys_length;
+  uint               tmp_tgt_default_files_length;
+  uint               tmp_tgt_default_groups_length;
+  uint               tmp_tgt_dsns_length;
+  uint               tmp_static_link_ids_length;
+  uint               tmp_tgt_ports_length;
+  uint               tmp_tgt_ssl_vscs_length;
+  uint               tmp_monitoring_binlog_pos_at_failing_length;
+  uint               tmp_link_statuses_length;
+} SPIDER_ALTER_TABLE;
+
+typedef struct st_spider_conn_loop_check SPIDER_CONN_LOOP_CHECK;
+
+/* database connection */
+typedef struct st_spider_conn
+{
+  uint               conn_kind;
+  char               *conn_key;
+  uint               conn_key_length;
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  my_hash_value_type conn_key_hash_value;
+#endif
+  int                link_idx;
+  spider_db_conn     *db_conn;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  query_id_t         hsc_query_id;
+  ulonglong          hs_pre_age;
+  ulonglong          hs_age;
+#endif
+  uint               opened_handlers;
+  ulonglong          conn_id;
+  ulonglong          connection_id;
+  query_id_t         casual_read_query_id;
+  uint               casual_read_current_id;
+  st_spider_conn     *casual_read_base_conn;
+  pthread_mutex_t    mta_conn_mutex;
+  volatile bool      mta_conn_mutex_lock_already;
+  volatile bool      mta_conn_mutex_unlock_later;
+  SPIDER_FILE_POS    mta_conn_mutex_file_pos;
+  uint               join_trx;
+  int                trx_isolation;
+  bool               semi_trx_isolation_chk;
+  int                semi_trx_isolation;
+  bool               semi_trx_chk;
+  bool               semi_trx;
+  bool               trx_start;
+  bool               table_locked;
+  int                table_lock;
+  bool               disable_xa;
+  bool               disable_reconnect;
+  int                autocommit;
+  int                sql_log_off;
+  int                wait_timeout;
+  sql_mode_t         sql_mode;
+  THD                *thd;
+  void               *another_ha_first;
+  void               *another_ha_last;
+  st_spider_conn     *p_small;
+  st_spider_conn     *p_big;
+  st_spider_conn     *c_small;
+  st_spider_conn     *c_big;
+  longlong           priority;
+  bool               server_lost;
+  bool               ignore_dup_key;
+  char               *error_str;
+  int                error_length;
+  time_t             ping_time;
+  CHARSET_INFO       *access_charset;
+  Time_zone          *time_zone;
+  uint               connect_timeout;
+  uint               net_read_timeout;
+  uint               net_write_timeout;
+  int                error_mode;
+  spider_string      default_database;
+
+  char               *tgt_host;
+  char               *tgt_username;
+  char               *tgt_password;
+  char               *tgt_socket;
+  char               *tgt_wrapper;
+  char               *tgt_db; /* for not joinable tables on different db */
+  char               *tgt_ssl_ca;
+  char               *tgt_ssl_capath;
+  char               *tgt_ssl_cert;
+  char               *tgt_ssl_cipher;
+  char               *tgt_ssl_key;
+  char               *tgt_default_file;
+  char               *tgt_default_group;
+  char               *tgt_dsn;
+  long               tgt_port;
+  long               tgt_ssl_vsc;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  char               *hs_sock;
+  long               hs_port;
+#endif
+
+  uint               tgt_host_length;
+  uint               tgt_username_length;
+  uint               tgt_password_length;
+  uint               tgt_socket_length;
+  uint               tgt_wrapper_length;
+  uint               tgt_db_length;
+  uint               tgt_ssl_ca_length;
+  uint               tgt_ssl_capath_length;
+  uint               tgt_ssl_cert_length;
+  uint               tgt_ssl_cipher_length;
+  uint               tgt_ssl_key_length;
+  uint               tgt_default_file_length;
+  uint               tgt_default_group_length;
+  uint               tgt_dsn_length;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  uint               hs_sock_length;
+#endif
+  uint               dbton_id;
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  volatile
+#endif
+    void             *quick_target;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  volatile bool      bg_init;
+  volatile bool      bg_break;
+  volatile bool      bg_kill;
+  volatile bool      bg_caller_wait;
+  volatile bool      bg_caller_sync_wait;
+  volatile bool      bg_search;
+  volatile bool      bg_discard_result;
+  volatile bool      bg_direct_sql;
+  volatile bool      bg_exec_sql;
+  volatile bool      bg_get_job_stack;
+  volatile bool      bg_get_job_stack_off;
+  volatile uint      bg_simple_action;
+  THD                *bg_thd;
+  pthread_t          bg_thread;
+  pthread_cond_t     bg_conn_cond;
+  pthread_mutex_t    bg_conn_mutex;
+  pthread_cond_t     bg_conn_sync_cond;
+  pthread_mutex_t    bg_conn_sync_mutex;
+  pthread_mutex_t    bg_conn_chain_mutex;
+  pthread_mutex_t    *bg_conn_chain_mutex_ptr;
+  volatile void      *bg_target;
+  volatile int       *bg_error_num;
+  volatile ulong     bg_sql_type;
+  pthread_mutex_t    bg_job_stack_mutex;
+  DYNAMIC_ARRAY      bg_job_stack;
+  uint               bg_job_stack_id;
+  const char         *bg_job_stack_func_name;
+  const char         *bg_job_stack_file_name;
+  ulong              bg_job_stack_line_no;
+  uint               bg_job_stack_cur_pos;
+#endif
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  volatile
+#endif
+    int              *need_mon;
+  int                *conn_need_mon;
+
+  bool               use_for_active_standby;
+  bool               in_before_query;
+
+  bool               queued_connect;
+  bool               queued_ping;
+  bool               queued_trx_isolation;
+  bool               queued_semi_trx_isolation;
+  bool               queued_wait_timeout;
+  bool               queued_autocommit;
+  bool               queued_sql_log_off;
+  bool               queued_sql_mode;
+  bool               queued_time_zone;
+  bool               queued_trx_start;
+  bool               queued_xa_start;
+  bool               queued_net_timeout;
+  SPIDER_SHARE       *queued_connect_share;
+  int                queued_connect_link_idx;
+  ha_spider          *queued_ping_spider;
+  int                queued_ping_link_idx;
+  int                queued_trx_isolation_val;
+  int                queued_semi_trx_isolation_val;
+  int                queued_wait_timeout_val;
+  bool               queued_autocommit_val;
+  bool               queued_sql_log_off_val;
+  sql_mode_t         queued_sql_mode_val;
+  Time_zone          *queued_time_zone_val;
+  XID                *queued_xa_start_xid;
+
+#ifdef HA_CAN_BULK_ACCESS
+  uint               bulk_access_requests;
+  uint               bulk_access_sended;
+  int                bulk_access_error_num;
+  st_spider_conn     *bulk_access_next;
+#endif
+
+  bool               disable_connect_retry;  /* TRUE if it is unnecessary to
+                                                retry to connect after a
+                                                connection error */
+  bool               connect_error_with_message;
+  char               connect_error_msg[MYSQL_ERRMSG_SIZE];
+  int                connect_error;
+  THD                *connect_error_thd;
+  query_id_t         connect_error_query_id;
+  time_t             connect_error_time;
+
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+  SPIDER_CONN_HOLDER    *conn_holder_for_direct_join;
+  SPIDER_LINK_IDX_CHAIN *link_idx_chain;
+#endif
+  SPIDER_IP_PORT_CONN *ip_port_conn;
+
+  pthread_mutex_t    loop_check_mutex;
+  HASH               loop_checked;
+  uint               loop_checked_id;
+  const char         *loop_checked_func_name;
+  const char         *loop_checked_file_name;
+  ulong              loop_checked_line_no;
+  HASH               loop_check_queue;
+  uint               loop_check_queue_id;
+  const char         *loop_check_queue_func_name;
+  const char         *loop_check_queue_file_name;
+  ulong              loop_check_queue_line_no;
+  SPIDER_CONN_LOOP_CHECK *loop_check_ignored_first;
+  SPIDER_CONN_LOOP_CHECK *loop_check_ignored_last;
+  SPIDER_CONN_LOOP_CHECK *loop_check_meraged_first;
+  SPIDER_CONN_LOOP_CHECK *loop_check_meraged_last;
+} SPIDER_CONN;
+
+typedef struct st_spider_lgtm_tblhnd_share
+{
+  char               *table_name;
+  uint               table_name_length;
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  my_hash_value_type table_path_hash_value;
+#endif
+  pthread_mutex_t    auto_increment_mutex;
+  volatile bool      auto_increment_init;
+  volatile ulonglong auto_increment_lclval;
+  ulonglong          auto_increment_value;
+} SPIDER_LGTM_TBLHND_SHARE;
+
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+typedef struct st_spider_patition_handler_share
+{
+  bool               clone_bitmap_init;
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  my_hash_value_type table_hash_value;
+#endif
+  query_id_t         parallel_search_query_id;
+  uint               no_parts;
+  TABLE              *table;
+  ha_spider          *owner;
+  ha_spider          **handlers;
+} SPIDER_PARTITION_HANDLER_SHARE;
+#endif
+
+typedef struct st_spider_wide_share
+{
+  char               *table_name;
+  uint               table_name_length;
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  my_hash_value_type table_path_hash_value;
+#endif
+  uint               use_count;
+  THR_LOCK           lock;
+  pthread_mutex_t    sts_mutex;
+  pthread_mutex_t    crd_mutex;
+  pthread_mutex_t    pt_handler_mutex;
+  HASH               pt_handler_hash;
+  uint               pt_handler_hash_id;
+  const char         *pt_handler_hash_func_name;
+  const char         *pt_handler_hash_file_name;
+  ulong              pt_handler_hash_line_no;
+
+  volatile bool      sts_init;
+  volatile bool      crd_init;
+  volatile time_t    sts_get_time;
+  volatile time_t    crd_get_time;
+  ha_statistics      stat;
+
+  longlong           *cardinality;
+} SPIDER_WIDE_SHARE;
+
+enum spider_hnd_stage {
+  SPD_HND_STAGE_NONE,
+  SPD_HND_STAGE_STORE_LOCK,
+  SPD_HND_STAGE_EXTERNAL_LOCK,
+  SPD_HND_STAGE_START_STMT,
+  SPD_HND_STAGE_EXTRA,
+  SPD_HND_STAGE_COND_PUSH,
+  SPD_HND_STAGE_COND_POP,
+  SPD_HND_STAGE_INFO_PUSH,
+  SPD_HND_STAGE_SET_TOP_TABLE_AND_FIELDS,
+  SPD_HND_STAGE_CLEAR_TOP_TABLE_FIELDS
+};
+
+typedef struct st_spider_wide_handler
+{
+  spider_hnd_stage   stage;
+  handler            *stage_executor;
+  THR_LOCK_DATA      lock;
+  SPIDER_TRX         *trx;
+  uchar              *searched_bitmap;
+  uchar              *ft_discard_bitmap;
+  uchar              *position_bitmap;
+  uchar              *idx_read_bitmap;
+  uchar              *idx_write_bitmap;
+  uchar              *rnd_read_bitmap;
+  uchar              *rnd_write_bitmap;
+  SPIDER_CONDITION   *condition;
+  void               *owner;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  uint32             *hs_pushed_ret_fields;
+#endif
+#endif
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  SPIDER_PARTITION_HANDLER_SHARE *partition_handler_share;
+#endif
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  List<Item>         *direct_update_fields;
+  List<Item>         *direct_update_values;
+#endif
+  TABLE_SHARE        *top_share;
+  enum thr_lock_type lock_type;
+  uchar              lock_table_type;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  uint32             hs_pushed_strref_num;
+#endif
+#endif
+  int                lock_mode;
+  int                external_lock_type;
+  int                cond_check_error;
+  uint               sql_command;
+  uint               top_table_fields;
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+#ifdef INFO_KIND_FORCE_LIMIT_BEGIN
+  longlong           info_limit;
+#endif
+#endif
+#ifdef HA_CAN_BULK_ACCESS
+  ulonglong          external_lock_cnt;
+#endif
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  size_t             hs_pushed_ret_fields_num;
+  size_t             hs_pushed_ret_fields_size;
+  size_t             hs_pushed_lcl_fields_num;
+#endif
+#endif
+  bool               between_flg;
+  bool               idx_bitmap_is_set;
+  bool               rnd_bitmap_is_set;
+  bool               position_bitmap_init;
+  bool               semi_trx_isolation_chk;
+  bool               semi_trx_chk;
+  bool               low_priority;
+  bool               high_priority;
+  bool               insert_delayed;
+  bool               consistent_snapshot;
+  bool               quick_mode;
+  bool               keyread;
+  bool               update_request;
+  bool               ignore_dup_key;
+  bool               write_can_replace;
+  bool               insert_with_update;
+  bool               cond_check;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  bool               hs_increment;
+  bool               hs_decrement;
+#endif
+#endif
+  bool               semi_table_lock;
+} SPIDER_WIDE_HANDLER;
+
+typedef struct st_spider_transaction
+{
+  bool               trx_start;
+  bool               trx_xa;
+  bool               trx_consistent_snapshot;
+  bool               trx_xa_prepared;
+
+  bool               use_consistent_snapshot;
+  bool               internal_xa;
+  uint               internal_xa_snapshot;
+
+  query_id_t         query_id;
+  bool               tmp_flg;
+  bool               registed_allocated_thds;
+
+  bool               updated_in_this_trx;
+
+  THD                *thd;
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  my_hash_value_type thd_hash_value;
+#endif
+  XID                xid;
+  HASH               trx_conn_hash;
+  uint               trx_conn_hash_id;
+  const char         *trx_conn_hash_func_name;
+  const char         *trx_conn_hash_file_name;
+  ulong              trx_conn_hash_line_no;
+  HASH               trx_another_conn_hash;
+  uint               trx_another_conn_hash_id;
+  const char         *trx_another_conn_hash_func_name;
+  const char         *trx_another_conn_hash_file_name;
+  ulong              trx_another_conn_hash_line_no;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  HASH               trx_hs_r_conn_hash;
+  uint               trx_hs_r_conn_hash_id;
+  const char         *trx_hs_r_conn_hash_func_name;
+  const char         *trx_hs_r_conn_hash_file_name;
+  ulong              trx_hs_r_conn_hash_line_no;
+  HASH               trx_hs_w_conn_hash;
+  uint               trx_hs_w_conn_hash_id;
+  const char         *trx_hs_w_conn_hash_func_name;
+  const char         *trx_hs_w_conn_hash_file_name;
+  ulong              trx_hs_w_conn_hash_line_no;
+#endif
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  HASH               trx_direct_hs_r_conn_hash;
+  uint               trx_direct_hs_r_conn_hash_id;
+  const char         *trx_direct_hs_r_conn_hash_func_name;
+  const char         *trx_direct_hs_r_conn_hash_file_name;
+  ulong              trx_direct_hs_r_conn_hash_line_no;
+  HASH               trx_direct_hs_w_conn_hash;
+  uint               trx_direct_hs_w_conn_hash_id;
+  const char         *trx_direct_hs_w_conn_hash_func_name;
+  const char         *trx_direct_hs_w_conn_hash_file_name;
+  ulong              trx_direct_hs_w_conn_hash_line_no;
+#endif
+  HASH               trx_alter_table_hash;
+  uint               trx_alter_table_hash_id;
+  const char         *trx_alter_table_hash_func_name;
+  const char         *trx_alter_table_hash_file_name;
+  ulong              trx_alter_table_hash_line_no;
+  HASH               trx_ha_hash;
+  uint               trx_ha_hash_id;
+  const char         *trx_ha_hash_func_name;
+  const char         *trx_ha_hash_file_name;
+  ulong              trx_ha_hash_line_no;
+  uint               trx_ha_reuse_count;
+  XID_STATE          internal_xid_state;
+  SPIDER_CONN        *join_trx_top;
+  ulonglong          spider_thread_id;
+  ulonglong          trx_conn_adjustment;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  ulonglong          trx_hs_r_conn_adjustment;
+  ulonglong          trx_hs_w_conn_adjustment;
+#endif
+  uint               locked_connections;
+
+  ulonglong          direct_update_count;
+  ulonglong          direct_delete_count;
+  ulonglong          direct_order_limit_count;
+  ulonglong          direct_aggregate_count;
+  ulonglong          parallel_search_count;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  ulonglong          hs_result_free_count;
+#endif
+
+#ifdef HA_CAN_BULK_ACCESS
+  SPIDER_CONN        *bulk_access_conn_first;
+  SPIDER_CONN        *bulk_access_conn_last;
+#endif
+
+  pthread_mutex_t    *udf_table_mutexes;
+  CHARSET_INFO       *udf_access_charset;
+  spider_string      *udf_set_names;
+
+  time_t             mem_calc_merge_time;
+  const char         *alloc_func_name[SPIDER_MEM_CALC_LIST_NUM];
+  const char         *alloc_file_name[SPIDER_MEM_CALC_LIST_NUM];
+  ulong              alloc_line_no[SPIDER_MEM_CALC_LIST_NUM];
+  ulonglong          total_alloc_mem[SPIDER_MEM_CALC_LIST_NUM];
+  longlong           current_alloc_mem[SPIDER_MEM_CALC_LIST_NUM];
+  ulonglong          alloc_mem_count[SPIDER_MEM_CALC_LIST_NUM];
+  ulonglong          free_mem_count[SPIDER_MEM_CALC_LIST_NUM];
+  ulonglong          total_alloc_mem_buffer[SPIDER_MEM_CALC_LIST_NUM];
+  longlong           current_alloc_mem_buffer[SPIDER_MEM_CALC_LIST_NUM];
+  ulonglong          alloc_mem_count_buffer[SPIDER_MEM_CALC_LIST_NUM];
+  ulonglong          free_mem_count_buffer[SPIDER_MEM_CALC_LIST_NUM];
+
+  MEM_ROOT           mem_root;
+
+  /* for transaction level query */
+  SPIDER_SHARE       *tmp_share;
+  char               *tmp_connect_info[SPIDER_TMP_SHARE_CHAR_PTR_COUNT];
+  uint               tmp_connect_info_length[SPIDER_TMP_SHARE_UINT_COUNT];
+  long               tmp_long[SPIDER_TMP_SHARE_LONG_COUNT];
+  longlong           tmp_longlong[SPIDER_TMP_SHARE_LONGLONG_COUNT];
+  ha_spider          *tmp_spider;
+  int                tmp_need_mon;
+  spider_db_handler  *tmp_dbton_handler[SPIDER_DBTON_SIZE];
+} SPIDER_TRX;
+
+typedef struct st_spider_share
+{
+  char               *table_name;
+  uint               table_name_length;
+  uint               use_count;
+  uint               link_count;
+  uint               all_link_count;
+  uint               link_bitmap_size;
+  pthread_mutex_t    mutex;
+  pthread_mutex_t    sts_mutex;
+  pthread_mutex_t    crd_mutex;
+/*
+  pthread_mutex_t    auto_increment_mutex;
+*/
+  TABLE_SHARE        *table_share;
+  SPIDER_LGTM_TBLHND_SHARE *lgtm_tblhnd_share;
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  my_hash_value_type table_name_hash_value;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  my_hash_value_type table_path_hash_value;
+#endif
+#endif
+
+  volatile bool      init;
+  volatile bool      init_error;
+  volatile time_t    init_error_time;
+  volatile bool      link_status_init;
+  uchar              *table_mon_mutex_bitmap;
+  volatile bool      sts_init;
+  volatile time_t    sts_get_time;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  volatile time_t    bg_sts_try_time;
+  volatile double    bg_sts_interval;
+  volatile int       bg_sts_mode;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  volatile int       bg_sts_sync;
+#endif
+  volatile bool      bg_sts_init;
+  volatile bool      bg_sts_kill;
+  volatile bool      bg_sts_thd_wait;
+  THD                *bg_sts_thd;
+  pthread_t          bg_sts_thread;
+  pthread_cond_t     bg_sts_cond;
+  pthread_cond_t     bg_sts_sync_cond;
+  volatile bool      crd_init;
+#endif
+  volatile time_t    crd_get_time;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  volatile time_t    bg_crd_try_time;
+  volatile double    bg_crd_interval;
+  volatile int       bg_crd_mode;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  volatile int       bg_crd_sync;
+#endif
+  volatile bool      bg_crd_init;
+  volatile bool      bg_crd_kill;
+  volatile bool      bg_crd_thd_wait;
+  THD                *bg_crd_thd;
+  pthread_t          bg_crd_thread;
+  pthread_cond_t     bg_crd_cond;
+  pthread_cond_t     bg_crd_sync_cond;
+#endif
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  volatile bool      bg_mon_init;
+  volatile bool      bg_mon_kill;
+  THD                **bg_mon_thds;
+  pthread_t          *bg_mon_threads;
+  pthread_mutex_t    *bg_mon_mutexes;
+  pthread_cond_t     *bg_mon_conds;
+  pthread_cond_t     *bg_mon_sleep_conds;
+#endif
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  /* static bg thread for sts and crd */
+  TABLE                 table;
+  ha_spider             *sts_spider;
+  ha_spider             *crd_spider;
+  SPIDER_THREAD         *sts_thread;
+  SPIDER_THREAD         *crd_thread;
+  volatile bool         sts_spider_init;
+  volatile bool         sts_working;
+  volatile bool         sts_wait;
+  volatile bool         crd_spider_init;
+  volatile bool         crd_working;
+  volatile bool         crd_wait;
+  volatile SPIDER_SHARE *sts_prev;
+  volatile SPIDER_SHARE *sts_next;
+  volatile SPIDER_SHARE *crd_prev;
+  volatile SPIDER_SHARE *crd_next;
+#endif
+
+  MEM_ROOT           mem_root;
+
+/*
+  volatile bool      auto_increment_init;
+  volatile ulonglong auto_increment_lclval;
+*/
+  ha_statistics      stat;
+
+  longlong           static_records_for_status;
+  longlong           static_mean_rec_length;
+
+  int                bitmap_size;
+  spider_string      *key_hint;
+  CHARSET_INFO       *access_charset;
+  longlong           *static_key_cardinality;
+  longlong           *cardinality;
+  uchar              *cardinality_upd;
+  longlong           additional_table_flags;
+  bool               have_recovery_link;
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  int                sts_bg_mode;
+#endif
+  double             sts_interval;
+  int                sts_mode;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  int                sts_sync;
+#endif
+  int                store_last_sts;
+  int                load_sts_at_startup;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  int                crd_bg_mode;
+#endif
+  double             crd_interval;
+  int                crd_mode;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  int                crd_sync;
+#endif
+  int                store_last_crd;
+  int                load_crd_at_startup;
+  int                crd_type;
+  double             crd_weight;
+  longlong           internal_offset;
+  longlong           internal_limit;
+  longlong           split_read;
+  double             semi_split_read;
+  longlong           semi_split_read_limit;
+  int                init_sql_alloc_size;
+  int                reset_sql_alloc;
+  int                multi_split_read;
+  int                max_order;
+  int                semi_table_lock;
+  int                semi_table_lock_conn;
+  int                selupd_lock_mode;
+  int                query_cache;
+  int                query_cache_sync;
+  int                internal_delayed;
+  int                bulk_size;
+  int                bulk_update_mode;
+  int                bulk_update_size;
+  int                buffer_size;
+  int                internal_optimize;
+  int                internal_optimize_local;
+  double             scan_rate;
+  double             read_rate;
+  longlong           priority;
+  int                quick_mode;
+  longlong           quick_page_size;
+  longlong           quick_page_byte;
+  int                low_mem_read;
+  int                table_count_mode;
+  int                select_column_mode;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  int                bgs_mode;
+  longlong           bgs_first_read;
+  longlong           bgs_second_read;
+#endif
+  longlong           first_read;
+  longlong           second_read;
+  int                auto_increment_mode;
+  int                use_table_charset;
+  int                use_pushdown_udf;
+  int                skip_default_condition;
+  int                skip_parallel_search;
+  int                direct_dup_insert;
+  longlong           direct_order_limit;
+  int                read_only_mode;
+  int                error_read_mode;
+  int                error_write_mode;
+  int                active_link_count;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  longlong           hs_result_free_size;
+#endif
+#ifdef HA_CAN_BULK_ACCESS
+  int                bulk_access_free;
+#endif
+#ifdef HA_CAN_FORCE_BULK_UPDATE
+  int                force_bulk_update;
+#endif
+#ifdef HA_CAN_FORCE_BULK_DELETE
+  int                force_bulk_delete;
+#endif
+  int                casual_read;
+  int                delete_all_rows_type;
+
+  int                bka_mode;
+  char               *bka_engine;
+  int                bka_engine_length;
+
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  my_hash_value_type *conn_keys_hash_value;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  my_hash_value_type *hs_read_conn_keys_hash_value;
+  my_hash_value_type *hs_write_conn_keys_hash_value;
+#endif
+#endif
+  char               **server_names;
+  char               **tgt_table_names;
+  char               **tgt_dbs;
+  char               **tgt_hosts;
+  char               **tgt_usernames;
+  char               **tgt_passwords;
+  char               **tgt_sockets;
+  char               **tgt_wrappers;
+  char               **tgt_ssl_cas;
+  char               **tgt_ssl_capaths;
+  char               **tgt_ssl_certs;
+  char               **tgt_ssl_ciphers;
+  char               **tgt_ssl_keys;
+  char               **tgt_default_files;
+  char               **tgt_default_groups;
+  char               **tgt_dsns;
+  char               **static_link_ids;
+  char               **tgt_pk_names;
+  char               **tgt_sequence_names;
+  char               **conn_keys;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  char               **hs_read_socks;
+  char               **hs_write_socks;
+  char               **hs_read_conn_keys;
+  char               **hs_write_conn_keys;
+#endif
+  long               *tgt_ports;
+  long               *tgt_ssl_vscs;
+  long               *link_statuses;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  long               *monitoring_bg_flag;
+  long               *monitoring_bg_kind;
+#endif
+  long               *monitoring_binlog_pos_at_failing;
+  long               *monitoring_flag;
+  long               *monitoring_kind;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  longlong           *monitoring_bg_interval;
+#endif
+  longlong           *monitoring_limit;
+  longlong           *monitoring_sid;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  long               *use_hs_reads;
+  long               *use_hs_writes;
+  long               *hs_read_ports;
+  long               *hs_write_ports;
+  long               *hs_write_to_reads;
+#endif
+  long               *use_handlers;
+  long               *connect_timeouts;
+  long               *net_read_timeouts;
+  long               *net_write_timeouts;
+  long               *access_balances;
+  long               *bka_table_name_types;
+  long               *strict_group_bys;
+
+  uint               *server_names_lengths;
+  uint               *tgt_table_names_lengths;
+  uint               *tgt_dbs_lengths;
+  uint               *tgt_hosts_lengths;
+  uint               *tgt_usernames_lengths;
+  uint               *tgt_passwords_lengths;
+  uint               *tgt_sockets_lengths;
+  uint               *tgt_wrappers_lengths;
+  uint               *tgt_ssl_cas_lengths;
+  uint               *tgt_ssl_capaths_lengths;
+  uint               *tgt_ssl_certs_lengths;
+  uint               *tgt_ssl_ciphers_lengths;
+  uint               *tgt_ssl_keys_lengths;
+  uint               *tgt_default_files_lengths;
+  uint               *tgt_default_groups_lengths;
+  uint               *tgt_dsns_lengths;
+  uint               *static_link_ids_lengths;
+  uint               *tgt_pk_names_lengths;
+  uint               *tgt_sequence_names_lengths;
+  uint               *conn_keys_lengths;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  uint               *hs_read_socks_lengths;
+  uint               *hs_write_socks_lengths;
+  uint               *hs_read_conn_keys_lengths;
+  uint               *hs_write_conn_keys_lengths;
+#endif
+  uint               *sql_dbton_ids;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  uint               *hs_dbton_ids;
+#endif
+
+  uint               server_names_charlen;
+  uint               tgt_table_names_charlen;
+  uint               tgt_dbs_charlen;
+  uint               tgt_hosts_charlen;
+  uint               tgt_usernames_charlen;
+  uint               tgt_passwords_charlen;
+  uint               tgt_sockets_charlen;
+  uint               tgt_wrappers_charlen;
+  uint               tgt_ssl_cas_charlen;
+  uint               tgt_ssl_capaths_charlen;
+  uint               tgt_ssl_certs_charlen;
+  uint               tgt_ssl_ciphers_charlen;
+  uint               tgt_ssl_keys_charlen;
+  uint               tgt_default_files_charlen;
+  uint               tgt_default_groups_charlen;
+  uint               tgt_dsns_charlen;
+  uint               static_link_ids_charlen;
+  uint               tgt_pk_names_charlen;
+  uint               tgt_sequence_names_charlen;
+  uint               conn_keys_charlen;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  uint               hs_read_socks_charlen;
+  uint               hs_write_socks_charlen;
+  uint               hs_read_conn_keys_charlen;
+  uint               hs_write_conn_keys_charlen;
+#endif
+
+  uint               server_names_length;
+  uint               tgt_table_names_length;
+  uint               tgt_dbs_length;
+  uint               tgt_hosts_length;
+  uint               tgt_usernames_length;
+  uint               tgt_passwords_length;
+  uint               tgt_sockets_length;
+  uint               tgt_wrappers_length;
+  uint               tgt_ssl_cas_length;
+  uint               tgt_ssl_capaths_length;
+  uint               tgt_ssl_certs_length;
+  uint               tgt_ssl_ciphers_length;
+  uint               tgt_ssl_keys_length;
+  uint               tgt_default_files_length;
+  uint               tgt_default_groups_length;
+  uint               tgt_dsns_length;
+  uint               static_link_ids_length;
+  uint               tgt_pk_names_length;
+  uint               tgt_sequence_names_length;
+  uint               conn_keys_length;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  uint               hs_read_socks_length;
+  uint               hs_write_socks_length;
+  uint               hs_read_conn_keys_length;
+  uint               hs_write_conn_keys_length;
+#endif
+  uint               tgt_ports_length;
+  uint               tgt_ssl_vscs_length;
+  uint               link_statuses_length;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  uint               monitoring_bg_flag_length;
+  uint               monitoring_bg_kind_length;
+#endif
+  uint               monitoring_binlog_pos_at_failing_length;
+  uint               monitoring_flag_length;
+  uint               monitoring_kind_length;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  uint               monitoring_bg_interval_length;
+#endif
+  uint               monitoring_limit_length;
+  uint               monitoring_sid_length;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  uint               use_hs_reads_length;
+  uint               use_hs_writes_length;
+  uint               hs_read_ports_length;
+  uint               hs_write_ports_length;
+  uint               hs_write_to_reads_length;
+#endif
+  uint               use_handlers_length;
+  uint               connect_timeouts_length;
+  uint               net_read_timeouts_length;
+  uint               net_write_timeouts_length;
+  uint               access_balances_length;
+  uint               bka_table_name_types_length;
+  uint               strict_group_bys_length;
+
+  /* for dbton */
+  uchar              dbton_bitmap[spider_bitmap_size(SPIDER_DBTON_SIZE)];
+  spider_db_share    *dbton_share[SPIDER_DBTON_SIZE];
+  uint               use_dbton_count;
+  uint               use_dbton_ids[SPIDER_DBTON_SIZE];
+  uint               dbton_id_to_seq[SPIDER_DBTON_SIZE];
+  uint               use_sql_dbton_count;
+  uint               use_sql_dbton_ids[SPIDER_DBTON_SIZE];
+  uint               sql_dbton_id_to_seq[SPIDER_DBTON_SIZE];
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  uint               use_hs_dbton_count;
+  uint               use_hs_dbton_ids[SPIDER_DBTON_SIZE];
+  uint               hs_dbton_id_to_seq[SPIDER_DBTON_SIZE];
+#endif
+
+  SPIDER_ALTER_TABLE alter_table;
+  SPIDER_WIDE_SHARE  *wide_share;
+} SPIDER_SHARE;
+
+typedef struct st_spider_link_pack
+{
+  SPIDER_SHARE               *share;
+  int                        link_idx;
+} SPIDER_LINK_PACK;
+
+typedef struct st_spider_init_error_table
+{
+  char               *table_name;
+  uint               table_name_length;
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  my_hash_value_type table_name_hash_value;
+#endif
+  bool               init_error_with_message;
+  char               init_error_msg[MYSQL_ERRMSG_SIZE];
+  volatile int       init_error;
+  volatile time_t    init_error_time;
+} SPIDER_INIT_ERROR_TABLE;
+
+typedef struct st_spider_direct_sql
+{
+  int                  table_count;
+  char                 **db_names;
+  char                 **table_names;
+  TABLE                **tables;
+  int                  *iop;
+
+#if MYSQL_VERSION_ID < 50500
+#else
+  /* for using real table */
+  bool                 real_table_used;
+  TABLE_LIST           *table_list_first;
+  TABLE_LIST           *table_list;
+  uchar                *real_table_bitmap;
+  SPIDER_Open_tables_backup open_tables_backup;
+  THD                  *open_tables_thd;
+#endif
+
+  char                 *sql;
+  ulong                sql_length;
+
+  SPIDER_TRX           *trx;
+  SPIDER_CONN          *conn;
+
+  bool                 modified_non_trans_table;
+
+  int                  table_loop_mode;
+  longlong             priority;
+  int                  connect_timeout;
+  int                  net_read_timeout;
+  int                  net_write_timeout;
+  longlong             bulk_insert_rows;
+  int                  connection_channel;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  int                  access_mode;
+#endif
+#if MYSQL_VERSION_ID < 50500
+#else
+  int                  use_real_table;
+#endif
+  int                  error_rw_mode;
+
+  char                 *server_name;
+  char                 *tgt_default_db_name;
+  char                 *tgt_host;
+  char                 *tgt_username;
+  char                 *tgt_password;
+  char                 *tgt_socket;
+  char                 *tgt_wrapper;
+  char                 *tgt_ssl_ca;
+  char                 *tgt_ssl_capath;
+  char                 *tgt_ssl_cert;
+  char                 *tgt_ssl_cipher;
+  char                 *tgt_ssl_key;
+  char                 *tgt_default_file;
+  char                 *tgt_default_group;
+  char                 *tgt_dsn;
+  char                 *conn_key;
+  long                 tgt_port;
+  long                 tgt_ssl_vsc;
+
+  uint                 server_name_length;
+  uint                 tgt_default_db_name_length;
+  uint                 tgt_host_length;
+  uint                 tgt_username_length;
+  uint                 tgt_password_length;
+  uint                 tgt_socket_length;
+  uint                 tgt_wrapper_length;
+  uint                 tgt_ssl_ca_length;
+  uint                 tgt_ssl_capath_length;
+  uint                 tgt_ssl_cert_length;
+  uint                 tgt_ssl_cipher_length;
+  uint                 tgt_ssl_key_length;
+  uint                 tgt_default_file_length;
+  uint                 tgt_default_group_length;
+  uint                 tgt_dsn_length;
+  uint                 conn_key_length;
+  uint                 dbton_id;
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  my_hash_value_type   conn_key_hash_value;
+#endif
+
+  pthread_mutex_t               *bg_mutex;
+  pthread_cond_t                *bg_cond;
+  volatile st_spider_direct_sql *prev;
+  volatile st_spider_direct_sql *next;
+  void                          *parent;
+} SPIDER_DIRECT_SQL;
+
+typedef struct st_spider_bg_direct_sql
+{
+  longlong                   called_cnt;
+  char                       bg_error_msg[MYSQL_ERRMSG_SIZE];
+  volatile int               bg_error;
+  volatile bool              modified_non_trans_table;
+  pthread_mutex_t            bg_mutex;
+  pthread_cond_t             bg_cond;
+  volatile SPIDER_DIRECT_SQL *direct_sql;
+} SPIDER_BG_DIRECT_SQL;
+
+typedef struct st_spider_mon_table_result
+{
+  int                        result_status;
+  SPIDER_TRX                 *trx;
+} SPIDER_MON_TABLE_RESULT;
+
+typedef struct st_spider_table_mon
+{
+  SPIDER_SHARE               *share;
+  uint32                     server_id;
+  st_spider_table_mon_list   *parent;
+  st_spider_table_mon        *next;
+} SPIDER_TABLE_MON;
+
+typedef struct st_spider_table_mon_list
+{
+  char                       *key;
+  uint                       key_length;
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  my_hash_value_type         key_hash_value;
+#endif
+
+  uint                       use_count;
+  uint                       mutex_hash;
+  ulonglong                  mon_table_cache_version;
+
+  char                       *table_name;
+  int                        link_id;
+  uint                       table_name_length;
+
+  int                        list_size;
+  SPIDER_TABLE_MON           *first;
+  SPIDER_TABLE_MON           *current;
+  volatile int               mon_status;
+
+  SPIDER_SHARE               *share;
+
+  pthread_mutex_t            caller_mutex;
+  pthread_mutex_t            receptor_mutex;
+  pthread_mutex_t            monitor_mutex;
+  pthread_mutex_t            update_status_mutex;
+  volatile int               last_caller_result;
+  volatile int               last_receptor_result;
+  volatile int               last_mon_result;
+} SPIDER_TABLE_MON_LIST;
+
+typedef struct st_spider_copy_table_conn
+{
+  SPIDER_SHARE               *share;
+  int                        link_idx;
+  SPIDER_CONN                *conn;
+  spider_db_copy_table       *copy_table;
+  ha_spider                  *spider;
+  int                        need_mon;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  int                        bg_error_num;
+#endif
+  st_spider_copy_table_conn  *next;
+} SPIDER_COPY_TABLE_CONN;
+
+typedef struct st_spider_copy_tables
+{
+  SPIDER_TRX                 *trx;
+  char                       *spider_db_name;
+  int                        spider_db_name_length;
+  char                       *spider_table_name;
+  int                        spider_table_name_length;
+  char                       *spider_real_table_name;
+  int                        spider_real_table_name_length;
+  TABLE_LIST                 spider_table_list;
+  CHARSET_INFO               *access_charset;
+
+  SPIDER_COPY_TABLE_CONN     *table_conn[2];
+  bool                       use_auto_mode[2];
+  int                        link_idx_count[2];
+  int                        *link_idxs[2];
+
+  int                        bulk_insert_interval;
+  longlong                   bulk_insert_rows;
+  int                        use_table_charset;
+  int                        use_transaction;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  int                        bg_mode;
+#endif
+
+  char                       *database;
+
+  int                        database_length;
+} SPIDER_COPY_TABLES;
+
+class SPIDER_SORT
+{
+public:
+  ulong sort;
+};
+
+typedef struct st_spider_trx_ha
+{
+  char                       *table_name;
+  uint                       table_name_length;
+  SPIDER_TRX                 *trx;
+  SPIDER_SHARE               *share;
+  uint                       link_count;
+  uint                       link_bitmap_size;
+  uint                       *conn_link_idx;
+  uchar                      *conn_can_fo;
+  bool                       wait_for_reusing;
+} SPIDER_TRX_HA;
+
+#ifdef HA_CAN_BULK_ACCESS
+typedef struct st_spider_bulk_access_link
+{
+  ha_spider                  *spider;
+  uint                       sequence_num;
+  bool                       used;
+  bool                       called;
+  MEM_ROOT                   mem_root;
+  st_spider_bulk_access_link *next;
+} SPIDER_BULK_ACCESS_LINK;
+#endif
+
+#define SPIDER_INT_HLD_TGT_SIZE 100
+typedef struct st_spider_int_hld
+{
+  uint tgt_num;
+  int tgt[SPIDER_INT_HLD_TGT_SIZE];
+  st_spider_int_hld *next;
+} SPIDER_INT_HLD;
+
+typedef struct st_spider_item_hld
+{
+  uint               tgt_num;
+  Item               *item;
+#ifdef SPIDER_ITEM_STRING_WITHOUT_SET_STR_WITH_COPY_AND_THDPTR
+  bool               init_mem_root;
+  MEM_ROOT           mem_root;
+#endif
+  st_spider_item_hld *next;
+} SPIDER_ITEM_HLD;
+
+char *spider_create_string(
+  const char *str,
+  uint length
+);
+
+
+typedef struct st_spider_ip_port_conn {
+  char               *key;
+  size_t             key_len;
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  my_hash_value_type key_hash_value;
+#endif
+  char               *remote_ip_str;
+  long               remote_port;
+  ulong              ip_port_count;
+  volatile ulong     waiting_count;
+  pthread_mutex_t    mutex;
+  pthread_cond_t     cond;
+  ulonglong          conn_id; /* each conn has it's own conn_id */
+} SPIDER_IP_PORT_CONN;
diff --git a/storage/spider/spd_init_query.h b/storage/spider/spd_init_query.h
new file mode 100644
index 00000000..f1fc558a
--- /dev/null
+++ b/storage/spider/spd_init_query.h
@@ -0,0 +1,830 @@
+/* Copyright (C) 2010-2020 Kentoku Shiba
+   Copyright (C) 2019-2020 MariaDB corp
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
+
+/*
+  This SQL script creates system tables for SPIDER
+    or fixes incompatibilities if ones already exist.
+*/
+
+static LEX_STRING spider_init_queries[] = {
+  {C_STRING_WITH_LEN(
+    "create table if not exists mysql.spider_xa("
+    "  format_id int not null default 0,"
+    "  gtrid_length int not null default 0,"
+    "  bqual_length int not null default 0,"
+    "  data char(128) charset binary not null default '',"
+    "  status char(8) not null default '',"
+    "  primary key (data, format_id, gtrid_length),"
+    "  key idx1 (status)"
+    ") engine=MyISAM default charset=utf8 collate=utf8_bin"
+  )},
+  {C_STRING_WITH_LEN(
+    "create table if not exists mysql.spider_xa_member("
+    "  format_id int not null default 0,"
+    "  gtrid_length int not null default 0,"
+    "  bqual_length int not null default 0,"
+    "  data char(128) charset binary not null default '',"
+    "  scheme char(64) not null default '',"
+    "  host char(64) not null default '',"
+    "  port char(5) not null default '',"
+    "  socket text not null,"
+    "  username char(64) not null default '',"
+    "  password char(64) not null default '',"
+    "  ssl_ca text,"
+    "  ssl_capath text,"
+    "  ssl_cert text,"
+    "  ssl_cipher char(64) default null,"
+    "  ssl_key text,"
+    "  ssl_verify_server_cert tinyint not null default 0,"
+    "  default_file text,"
+    "  default_group char(64) default null,"
+    "  dsn char(64) default null,"
+    "  key idx1 (data, format_id, gtrid_length, host)"
+    ") engine=MyISAM default charset=utf8 collate=utf8_bin"
+  )},
+  {C_STRING_WITH_LEN(
+    "create table if not exists mysql.spider_xa_failed_log("
+    "  format_id int not null default 0,"
+    "  gtrid_length int not null default 0,"
+    "  bqual_length int not null default 0,"
+    "  data char(128) charset binary not null default '',"
+    "  scheme char(64) not null default '',"
+    "  host char(64) not null default '',"
+    "  port char(5) not null default '',"
+    "  socket text not null,"
+    "  username char(64) not null default '',"
+    "  password char(64) not null default '',"
+    "  ssl_ca text,"
+    "  ssl_capath text,"
+    "  ssl_cert text,"
+    "  ssl_cipher char(64) default null,"
+    "  ssl_key text,"
+    "  ssl_verify_server_cert tinyint not null default 0,"
+    "  default_file text,"
+    "  default_group char(64) default null,"
+    "  dsn char(64) default null,"
+    "  thread_id int default null,"
+    "  status char(8) not null default '',"
+    "  failed_time timestamp not null default current_timestamp,"
+    "  key idx1 (data, format_id, gtrid_length, host)"
+    ") engine=MyISAM default charset=utf8 collate=utf8_bin"
+  )},
+  {C_STRING_WITH_LEN(
+    "create table if not exists mysql.spider_tables("
+    "  db_name char(64) not null default '',"
+    "  table_name char(199) not null default '',"
+    "  link_id int not null default 0,"
+    "  priority bigint not null default 0,"
+    "  server char(64) default null,"
+    "  scheme char(64) default null,"
+    "  host char(64) default null,"
+    "  port char(5) default null,"
+    "  socket text,"
+    "  username char(64) default null,"
+    "  password char(64) default null,"
+    "  ssl_ca text,"
+    "  ssl_capath text,"
+    "  ssl_cert text,"
+    "  ssl_cipher char(64) default null,"
+    "  ssl_key text,"
+    "  ssl_verify_server_cert tinyint not null default 0,"
+    "  monitoring_binlog_pos_at_failing tinyint not null default 0,"
+    "  default_file text,"
+    "  default_group char(64) default null,"
+    "  dsn char(64) default null,"
+    "  tgt_db_name char(64) default null,"
+    "  tgt_table_name char(64) default null,"
+    "  link_status tinyint not null default 1,"
+    "  block_status tinyint not null default 0,"
+    "  static_link_id char(64) default null,"
+    "  primary key (db_name, table_name, link_id),"
+    "  key idx1 (priority),"
+    "  unique key uidx1 (db_name, table_name, static_link_id)"
+    ") engine=MyISAM default charset=utf8 collate=utf8_bin"
+  )},
+  {C_STRING_WITH_LEN(
+    "create table if not exists mysql.spider_link_mon_servers("
+    "  db_name char(64) not null default '',"
+    "  table_name char(199) not null default '',"
+    "  link_id char(64) not null default '',"
+    "  sid int unsigned not null default 0,"
+    "  server char(64) default null,"
+    "  scheme char(64) default null,"
+    "  host char(64) default null,"
+    "  port char(5) default null,"
+    "  socket text,"
+    "  username char(64) default null,"
+    "  password char(64) default null,"
+    "  ssl_ca text,"
+    "  ssl_capath text,"
+    "  ssl_cert text,"
+    "  ssl_cipher char(64) default null,"
+    "  ssl_key text,"
+    "  ssl_verify_server_cert tinyint not null default 0,"
+    "  default_file text,"
+    "  default_group char(64) default null,"
+    "  dsn char(64) default null,"
+    "  primary key (db_name, table_name, link_id, sid)"
+    ") engine=MyISAM default charset=utf8 collate=utf8_bin"
+  )},
+  {C_STRING_WITH_LEN(
+    "create table if not exists mysql.spider_link_failed_log("
+    "  db_name char(64) not null default '',"
+    "  table_name char(199) not null default '',"
+    "  link_id char(64) not null default '',"
+    "  failed_time timestamp not null default current_timestamp"
+    ") engine=MyISAM default charset=utf8 collate=utf8_bin"
+  )},
+  {C_STRING_WITH_LEN(
+    "create table if not exists mysql.spider_table_position_for_recovery("
+    "  db_name char(64) not null default '',"
+    "  table_name char(199) not null default '',"
+    "  failed_link_id int not null default 0,"
+    "  source_link_id int not null default 0,"
+    "  file text,"
+    "  position text,"
+    "  gtid text,"
+    "  primary key (db_name, table_name, failed_link_id, source_link_id)"
+    ") engine=MyISAM default charset=utf8 collate=utf8_bin"
+  )},
+  {C_STRING_WITH_LEN(
+    "create table if not exists mysql.spider_table_sts("
+    "  db_name char(64) not null default '',"
+    "  table_name char(199) not null default '',"
+    "  data_file_length bigint unsigned not null default 0,"
+    "  max_data_file_length bigint unsigned not null default 0,"
+    "  index_file_length bigint unsigned not null default 0,"
+    "  records bigint unsigned not null default 0,"
+    "  mean_rec_length bigint unsigned not null default 0,"
+    "  check_time datetime not null default '0000-00-00 00:00:00',"
+    "  create_time datetime not null default '0000-00-00 00:00:00',"
+    "  update_time datetime not null default '0000-00-00 00:00:00',"
+    "  checksum bigint unsigned default null,"
+    "  primary key (db_name, table_name)"
+    ") engine=MyISAM default charset=utf8 collate=utf8_bin"
+  )},
+  {C_STRING_WITH_LEN(
+    "create table if not exists mysql.spider_table_crd("
+    "  db_name char(64) not null default '',"
+    "  table_name char(199) not null default '',"
+    "  key_seq int unsigned not null default 0,"
+    "  cardinality bigint not null default 0,"
+    "  primary key (db_name, table_name, key_seq)"
+    ") engine=MyISAM default charset=utf8 collate=utf8_bin"
+  )},
+/*
+  If tables already exist and their definition differ
+  from the latest ones, we fix them here.
+*/
+  {C_STRING_WITH_LEN(
+    "drop procedure if exists mysql.spider_fix_one_table"
+  )},
+  {C_STRING_WITH_LEN(
+    "drop procedure if exists mysql.spider_fix_system_tables"
+  )},
+  {C_STRING_WITH_LEN(
+    "create procedure mysql.spider_fix_one_table"
+    "  (tab_name char(255) charset utf8 collate utf8_bin,"
+    "    test_col_name char(255) charset utf8 collate utf8_bin,"
+    "    _sql text charset utf8 collate utf8_bin)"
+    "begin"
+    "  set @col_exists := 0;"
+    "  select 1 into @col_exists from INFORMATION_SCHEMA.COLUMNS"
+    "    where TABLE_SCHEMA = 'mysql'"
+    "      AND TABLE_NAME = tab_name"
+    "      AND COLUMN_NAME = test_col_name;"
+    "  if @col_exists = 0 then"
+    "    select @stmt := _sql;"
+    "    prepare sp_stmt1 from @stmt;"
+    "    execute sp_stmt1;"
+    "  end if;"
+    "end;"
+  )},
+  {C_STRING_WITH_LEN(
+    "create procedure mysql.spider_fix_system_tables()"
+    "begin"
+    "  select substring_index(substring_index(version(), '-', 2), '-', -1)"
+    "    into @server_name;"
+    "  if @server_name regexp '^[0-9]+$' then"
+    "    select substring_index(substring_index(version(), '-', 3), '-', -1)"
+    "      into @server_name;"
+    "  end if;"
+    "  select substring_index(version(), '.', 1)"
+    "    into @server_major_version;"
+    "  select substring_index(substring_index(version(), '.', 2), '.', -1)"
+    "    into @server_minor_version;"
+/*
+  Fix for 0.5
+*/
+    "  call mysql.spider_fix_one_table('spider_tables', 'server',"
+    "   'alter table mysql.spider_tables"
+    "    add server char(64) default null,"
+    "    add scheme char(64) default null,"
+    "    add host char(64) default null,"
+    "    add port char(5) default null,"
+    "    add socket char(64) default null,"
+    "    add username char(64) default null,"
+    "    add password char(64) default null,"
+    "    add tgt_db_name char(64) default null,"
+    "    add tgt_table_name char(64) default null');"
+/*
+  Fix for version 0.17
+*/
+    "  select COLUMN_TYPE INTO @col_type from INFORMATION_SCHEMA.COLUMNS"
+    "    where TABLE_SCHEMA = 'mysql'"
+    "      AND TABLE_NAME = 'spider_xa'"
+    "      AND COLUMN_NAME = 'data';"
+    "  if @col_type != 'binary(128)' then"
+    "    alter table mysql.spider_xa"
+    "      modify data binary(128) not null default '';"
+    "  end if;"
+    "  select COLUMN_TYPE INTO @col_type from INFORMATION_SCHEMA.COLUMNS"
+    "    where TABLE_SCHEMA = 'mysql'"
+    "      AND TABLE_NAME = 'spider_xa_member'"
+    "      AND COLUMN_NAME = 'data';"
+    "  if @col_type != 'binary(128)' then"
+    "    alter table mysql.spider_xa_member"
+    "      modify data binary(128) not null default '';"
+    "  end if;"
+/*
+  Fix for version 2.7
+*/
+    "  call mysql.spider_fix_one_table('spider_tables', 'link_id',"
+    "   'alter table mysql.spider_tables"
+    "    add column link_id int not null default 0 after table_name,"
+    "    drop primary key,"
+    "    add primary key (db_name, table_name, link_id)');"
+/*
+  Fix for version 2.8
+*/
+    "  call mysql.spider_fix_one_table('spider_tables', 'link_status',"
+    "   'alter table mysql.spider_tables"
+    "    add column link_status tinyint not null default 1');"
+/*
+  Fix for version 2.10
+*/
+    "  call mysql.spider_fix_one_table('spider_xa_member', 'ssl_ca',"
+    "   'alter table mysql.spider_xa_member"
+    "    add column ssl_ca char(64) default null after password,"
+    "    add column ssl_capath char(64) default null after ssl_ca,"
+    "    add column ssl_cert char(64) default null after ssl_capath,"
+    "    add column ssl_cipher char(64) default null after ssl_cert,"
+    "    add column ssl_key char(64) default null after ssl_cipher,"
+    "    add column ssl_verify_server_cert tinyint not null default 0"
+    "      after ssl_key,"
+    "    add column default_file char(64) default null"
+    "      after ssl_verify_server_cert,"
+    "    add column default_group char(64) default null after default_file');"
+    "  call mysql.spider_fix_one_table('spider_tables', 'ssl_ca',"
+    "   'alter table mysql.spider_tables"
+    "    add column ssl_ca char(64) default null after password,"
+    "    add column ssl_capath char(64) default null after ssl_ca,"
+    "    add column ssl_cert char(64) default null after ssl_capath,"
+    "    add column ssl_cipher char(64) default null after ssl_cert,"
+    "    add column ssl_key char(64) default null after ssl_cipher,"
+    "    add column ssl_verify_server_cert tinyint not null default 0"
+    "      after ssl_key,"
+    "    add column default_file char(64) default null"
+    "      after ssl_verify_server_cert,"
+    "    add column default_group char(64) default null after default_file');"
+    "  call mysql.spider_fix_one_table('spider_link_mon_servers', 'ssl_ca',"
+    "   'alter table mysql.spider_link_mon_servers"
+    "    add column ssl_ca char(64) default null after password,"
+    "    add column ssl_capath char(64) default null after ssl_ca,"
+    "    add column ssl_cert char(64) default null after ssl_capath,"
+    "    add column ssl_cipher char(64) default null after ssl_cert,"
+    "    add column ssl_key char(64) default null after ssl_cipher,"
+    "    add column ssl_verify_server_cert tinyint not null default 0"
+    "      after ssl_key,"
+    "    add column default_file char(64) default null"
+    "      after ssl_verify_server_cert,"
+    "    add column default_group char(64) default null after default_file');"
+/*
+  Fix for version 2.28
+*/
+    "  select COLUMN_TYPE INTO @col_type from INFORMATION_SCHEMA.COLUMNS"
+    "    where TABLE_SCHEMA = 'mysql'"
+    "      AND TABLE_NAME = 'spider_link_mon_servers'"
+    "      AND COLUMN_NAME = 'sid';"
+    "  if @col_type != 'int(10) unsigned' then"
+    "    alter table mysql.spider_link_mon_servers"
+    "    modify sid int unsigned not null default 0;"
+    "  end if;"
+/*
+  Fix for version 3.1
+*/
+    "  select COLUMN_TYPE INTO @col_type from INFORMATION_SCHEMA.COLUMNS"
+    "    where TABLE_SCHEMA = 'mysql'"
+    "      AND TABLE_NAME = 'spider_xa_member'"
+    "      AND COLUMN_NAME = 'socket';"
+    "  if @col_type = 'char(64)' then"
+    "    alter table mysql.spider_xa_member"
+    "      drop primary key,"
+    "      add index idx1 (data, format_id, gtrid_length, host),"
+    "      modify socket text not null,"
+    "      modify ssl_ca text,"
+    "      modify ssl_capath text,"
+    "      modify ssl_cert text,"
+    "      modify ssl_key text,"
+    "      modify default_file text;"
+    "  end if;"
+    "  select COLUMN_TYPE INTO @col_type from INFORMATION_SCHEMA.COLUMNS"
+    "    where TABLE_SCHEMA = 'mysql'"
+    "      AND TABLE_NAME = 'spider_tables'"
+    "      AND COLUMN_NAME = 'socket';"
+    "  if @col_type = 'char(64)' then"
+    "    alter table mysql.spider_tables"
+    "      modify socket text,"
+    "      modify ssl_ca text,"
+    "      modify ssl_capath text,"
+    "      modify ssl_cert text,"
+    "      modify ssl_key text,"
+    "      modify default_file text;"
+    "  end if;"
+    "  select COLUMN_TYPE INTO @col_type from INFORMATION_SCHEMA.COLUMNS"
+    "    where TABLE_SCHEMA = 'mysql'"
+    "      AND TABLE_NAME = 'spider_link_mon_servers'"
+    "      AND COLUMN_NAME = 'socket';"
+    "  if @col_type = 'char(64)' then"
+    "    alter table mysql.spider_link_mon_servers"
+    "      modify socket text,"
+    "      modify ssl_ca text,"
+    "      modify ssl_capath text,"
+    "      modify ssl_cert text,"
+    "      modify ssl_key text,"
+    "      modify default_file text;"
+    "  end if;"
+/*
+  Fix for version 3.3.0
+*/
+    "  call mysql.spider_fix_one_table('spider_tables',"
+    "   'monitoring_binlog_pos_at_failing',"
+    "   'alter table mysql.spider_tables"
+    "    add monitoring_binlog_pos_at_failing tinyint not null default 0"
+    "      after ssl_verify_server_cert');"
+/*
+  Fix for version 3.3.6
+*/
+    "  call mysql.spider_fix_one_table('spider_tables', 'block_status',"
+    "   'alter table mysql.spider_tables"
+    "    add column block_status tinyint not null default 0"
+    "      after link_status');"
+    "  call mysql.spider_fix_one_table('spider_tables', 'static_link_id',"
+    "   'alter table mysql.spider_tables"
+    "    add column static_link_id char(64) default null after block_status,"
+    "    add unique index uidx1 (db_name, table_name, static_link_id)');"
+    "  select COLUMN_TYPE INTO @col_type from INFORMATION_SCHEMA.COLUMNS"
+    "    where TABLE_SCHEMA = 'mysql'"
+    "      AND TABLE_NAME = 'spider_link_mon_servers'"
+    "      AND COLUMN_NAME = 'link_id';"
+    "  if @col_type != 'char(64)' then"
+    "    alter table mysql.spider_link_mon_servers"
+    "    modify link_id char(64) not null default '';"
+    "  end if;"
+    "  select COLUMN_TYPE INTO @col_type from INFORMATION_SCHEMA.COLUMNS"
+    "    where TABLE_SCHEMA = 'mysql'"
+    "      AND TABLE_NAME = 'spider_link_failed_log'"
+    "      AND COLUMN_NAME = 'link_id';"
+    "  if @col_type != 'char(64)' then"
+    "    alter table mysql.spider_link_failed_log"
+    "    modify link_id char(64) not null default '';"
+    "  end if;"
+/*
+  Fix for version 3.3.10
+*/
+    "  select COLUMN_TYPE INTO @col_type from INFORMATION_SCHEMA.COLUMNS"
+    "    where TABLE_SCHEMA = 'mysql'"
+    "      AND TABLE_NAME = 'spider_tables'"
+    "      AND COLUMN_NAME = 'table_name';"
+    "  if @col_type != 'char(199)' then"
+    "    alter table mysql.spider_tables"
+    "    modify table_name char(199) not null default '';"
+    "  end if;"
+    "  select COLUMN_TYPE INTO @col_type from INFORMATION_SCHEMA.COLUMNS"
+    "    where TABLE_SCHEMA = 'mysql'"
+    "      AND TABLE_NAME = 'spider_link_mon_servers'"
+    "      AND COLUMN_NAME = 'table_name';"
+    "  if @col_type != 'char(199)' then"
+    "    alter table mysql.spider_link_mon_servers"
+    "    modify table_name char(199) not null default '';"
+    "  end if;"
+    "  select COLUMN_TYPE INTO @col_type from INFORMATION_SCHEMA.COLUMNS"
+    "    where TABLE_SCHEMA = 'mysql'"
+    "      AND TABLE_NAME = 'spider_link_failed_log'"
+    "      AND COLUMN_NAME = 'table_name';"
+    "  if @col_type != 'char(199)' then"
+    "    alter table mysql.spider_link_failed_log"
+    "    modify table_name char(199) not null default '';"
+    "  end if;"
+    "  select COLUMN_TYPE INTO @col_type from INFORMATION_SCHEMA.COLUMNS"
+    "    where TABLE_SCHEMA = 'mysql'"
+    "      AND TABLE_NAME = 'spider_table_position_for_recovery'"
+    "      AND COLUMN_NAME = 'table_name';"
+    "  if @col_type != 'char(199)' then"
+    "    alter table mysql.spider_table_position_for_recovery"
+    "    modify table_name char(199) not null default '';"
+    "  end if;"
+    "  select COLUMN_TYPE INTO @col_type from INFORMATION_SCHEMA.COLUMNS"
+    "    where TABLE_SCHEMA = 'mysql'"
+    "      AND TABLE_NAME = 'spider_table_sts'"
+    "      AND COLUMN_NAME = 'table_name';"
+    "  if @col_type != 'char(199)' then"
+    "    alter table mysql.spider_table_sts"
+    "    modify table_name char(199) not null default '';"
+    "  end if;"
+    "  select COLUMN_TYPE INTO @col_type from INFORMATION_SCHEMA.COLUMNS"
+    "    where TABLE_SCHEMA = 'mysql'"
+    "      AND TABLE_NAME = 'spider_table_crd'"
+    "      AND COLUMN_NAME = 'table_name';"
+    "  if @col_type != 'char(199)' then"
+    "    alter table mysql.spider_table_crd"
+    "    modify table_name char(199) not null default '';"
+    "  end if;"
+/*
+  Fix for version 3.3.15
+*/
+    "  call mysql.spider_fix_one_table('spider_table_sts', 'checksum',"
+    "   'alter table mysql.spider_table_sts"
+    "    add column checksum bigint unsigned default null after update_time');"
+/*
+  Fix for MariaDB 10.4: Crash-Safe system tables
+*/
+    "  if @server_name = 'MariaDB' and"
+    "    ("
+    "      @server_major_version > 10 or"
+    "      ("
+    "        @server_major_version = 10 and"
+    "        @server_minor_version >= 4"
+    "      )"
+    "    )"
+    "  then"
+    "    select ENGINE INTO @engine_name from INFORMATION_SCHEMA.TABLES"
+    "      where TABLE_SCHEMA = 'mysql'"
+    "        AND TABLE_NAME = 'spider_link_failed_log';"
+    "    if @engine_name != 'Aria' then"
+    "      alter table mysql.spider_link_failed_log"
+    "        engine=Aria transactional=1;"
+    "    end if;"
+    "    select ENGINE INTO @engine_name from INFORMATION_SCHEMA.TABLES"
+    "      where TABLE_SCHEMA = 'mysql'"
+    "        AND TABLE_NAME = 'spider_link_mon_servers';"
+    "    if @engine_name != 'Aria' then"
+    "      alter table mysql.spider_link_mon_servers"
+    "        engine=Aria transactional=1;"
+    "    end if;"
+    "    select ENGINE INTO @engine_name from INFORMATION_SCHEMA.TABLES"
+    "      where TABLE_SCHEMA = 'mysql'"
+    "        AND TABLE_NAME = 'spider_table_crd';"
+    "    if @engine_name != 'Aria' then"
+    "      alter table mysql.spider_table_crd"
+    "        engine=Aria transactional=1;"
+    "    end if;"
+    "    select ENGINE INTO @engine_name from INFORMATION_SCHEMA.TABLES"
+    "      where TABLE_SCHEMA = 'mysql'"
+    "        AND TABLE_NAME = 'spider_table_position_for_recovery';"
+    "    if @engine_name != 'Aria' then"
+    "      alter table mysql.spider_table_position_for_recovery"
+    "        engine=Aria transactional=1;"
+    "    end if;"
+    "    select ENGINE INTO @engine_name from INFORMATION_SCHEMA.TABLES"
+    "      where TABLE_SCHEMA = 'mysql'"
+    "        AND TABLE_NAME = 'spider_table_sts';"
+    "    if @engine_name != 'Aria' then"
+    "      alter table mysql.spider_table_sts"
+    "        engine=Aria transactional=1;"
+    "    end if;"
+    "    select ENGINE INTO @engine_name from INFORMATION_SCHEMA.TABLES"
+    "      where TABLE_SCHEMA = 'mysql'"
+    "        AND TABLE_NAME = 'spider_tables';"
+    "    if @engine_name != 'Aria' then"
+    "      alter table mysql.spider_tables"
+    "        engine=Aria transactional=1;"
+    "    end if;"
+    "    select ENGINE INTO @engine_name from INFORMATION_SCHEMA.TABLES"
+    "      where TABLE_SCHEMA = 'mysql'"
+    "        AND TABLE_NAME = 'spider_xa';"
+    "    if @engine_name != 'Aria' then"
+    "      alter table mysql.spider_xa"
+    "        engine=Aria transactional=1;"
+    "    end if;"
+    "    select ENGINE INTO @engine_name from INFORMATION_SCHEMA.TABLES"
+    "      where TABLE_SCHEMA = 'mysql'"
+    "        AND TABLE_NAME = 'spider_xa_failed_log';"
+    "    if @engine_name != 'Aria' then"
+    "      alter table mysql.spider_xa_failed_log"
+    "        engine=Aria transactional=1;"
+    "    end if;"
+    "    select ENGINE INTO @engine_name from INFORMATION_SCHEMA.TABLES"
+    "      where TABLE_SCHEMA = 'mysql'"
+    "        AND TABLE_NAME = 'spider_xa_member';"
+    "    if @engine_name != 'Aria' then"
+    "      alter table mysql.spider_xa_member"
+    "        engine=Aria transactional=1;"
+    "    end if;"
+    "  end if;"
+    "  if @server_name = 'MariaDB' and"
+    "    ("
+    "      @server_major_version > 10 or"
+    "      ("
+    "        @server_major_version = 10 and"
+    "        @server_minor_version >= 6"
+    "      )"
+    "    )"
+    "  then"
+    "    /* table for ddl pushdown */"
+    "    create table if not exists mysql.spider_rewrite_tables("
+    "      table_id bigint unsigned not null auto_increment,"
+    "      db_name char(64) not null default '',"
+    "      table_name char(64) not null default '',"
+    "      primary key (table_id),"
+    "      unique uk1(db_name, table_name)"
+    "    ) engine=Aria transactional=1 default charset=utf8 collate=utf8_bin;"
+    "    create table if not exists mysql.spider_rewrite_table_tables("
+    "      table_id bigint unsigned not null,"
+    "      partition_id bigint unsigned not null auto_increment,"
+    "      partition_method varchar(18) default '',"
+    "      partition_expression varchar(64) default '',"
+    "      subpartition_method varchar(12) default '',"
+    "      subpartition_expression varchar(64) default '',"
+    "      connection_str text not null default '',"
+    "      comment_str text not null default '',"
+    "      primary key (table_id, partition_id),"
+    "      unique uk1(table_id, partition_method, partition_expression,"
+    "        subpartition_method, subpartition_expression)"
+    "    ) engine=Aria transactional=1 default charset=utf8 collate=utf8_bin;"
+    "    create table if not exists mysql.spider_rewrite_table_partitions("
+    "      table_id bigint unsigned not null,"
+    "      partition_id bigint unsigned not null,"
+    "      partition_ordinal_position bigint unsigned not null auto_increment,"
+    "      partition_name varchar(64) not null default '',"
+    "      partition_description varchar(64) not null default '',"
+    "      connection_str text not null default '',"
+    "      comment_str text not null default '',"
+    "      primary key (table_id, partition_id, partition_ordinal_position),"
+    "      unique key uk1 (table_id, partition_id, partition_name)"
+    "    ) engine=Aria transactional=1 default charset=utf8 collate=utf8_bin;"
+    "    create table if not exists mysql.spider_rewrite_table_subpartitions("
+    "      table_id bigint unsigned not null,"
+    "      partition_id bigint unsigned not null,"
+    "      partition_ordinal_position bigint unsigned not null,"
+    "      subpartition_ordinal_position bigint unsigned not null"
+    "        auto_increment,"
+    "      subpartition_name varchar(64) not null default '',"
+    "      subpartition_description varchar(64) not null default '',"
+    "      connection_str text not null default '',"
+    "      comment_str text not null default '',"
+    "      primary key (table_id, partition_id, partition_ordinal_position,"
+    "        subpartition_ordinal_position),"
+    "      unique key uk1 (table_id, partition_id, partition_ordinal_position,"
+    "        subpartition_name)"
+    "    ) engine=Aria transactional=1 default charset=utf8 collate=utf8_bin;"
+    "    create table if not exists mysql.spider_rewritten_tables("
+    "      db_name char(64) not null,"
+    "      table_name char(64) not null,"
+    "      table_id bigint unsigned not null,"
+    "      partition_id bigint unsigned not null,"
+    "      primary key (db_name, table_name, table_id, partition_id)"
+    "    ) engine=Aria transactional=1 default charset=utf8 collate=utf8_bin;"
+    "  end if;"
+/*
+  Fix for version 3.4
+*/
+    "  call mysql.spider_fix_one_table('spider_link_mon_servers', 'dsn',"
+    "   'alter table mysql.spider_link_mon_servers"
+    "    add column dsn char(64) default null after default_group');"
+    "  call mysql.spider_fix_one_table('spider_tables', 'dsn',"
+    "   'alter table mysql.spider_tables"
+    "    add column dsn char(64) default null after default_group');"
+    "  call mysql.spider_fix_one_table('spider_xa_failed_log', 'dsn',"
+    "   'alter table mysql.spider_xa_failed_log"
+    "    add column dsn char(64) default null after default_group');"
+    "  call mysql.spider_fix_one_table('spider_xa_member', 'dsn',"
+    "   'alter table mysql.spider_xa_member"
+    "    add column dsn char(64) default null after default_group');"
+    "end;"
+  )},
+  {C_STRING_WITH_LEN(
+    "call mysql.spider_fix_system_tables"
+  )},
+  {C_STRING_WITH_LEN(
+    "drop procedure mysql.spider_fix_one_table"
+  )},
+  {C_STRING_WITH_LEN(
+    "drop procedure mysql.spider_fix_system_tables"
+  )},
+/*
+  Install a plugin and UDFs
+*/
+  {C_STRING_WITH_LEN(
+    "drop procedure if exists mysql.spider_plugin_installer"
+  )},
+  {C_STRING_WITH_LEN(
+    "create procedure mysql.spider_plugin_installer()"
+    "begin"
+    "  set @win_plugin := IF(@@version_compile_os like 'Win%', 1, 0);"
+/*
+  Install spider plugin
+*/
+/*
+    "  set @have_spider_i_s_plugin := 0;"
+    "  select @have_spider_i_s_plugin := 1 from INFORMATION_SCHEMA.plugins"
+    "    where PLUGIN_NAME = 'SPIDER';"
+    "  set @have_spider_plugin := 0;"
+    "  select @have_spider_plugin := 1 from mysql.plugin"
+    "    where name = 'spider';"
+    "  if @have_spider_i_s_plugin = 0 then"
+    "    if @have_spider_plugin = 1 then"
+    "      / *"
+    "        spider plugin is present in mysql.plugin but not in"
+    "        information_schema.plugins.  Remove spider plugin entry"
+    "        in mysql.plugin first."
+    "      * /"
+    "      delete from mysql.plugin where name = 'spider';"
+    "    end if;"
+    "    if @win_plugin = 0 then "
+    "      install plugin spider soname 'ha_spider.so';"
+    "    else"
+    "      install plugin spider soname 'ha_spider.dll';"
+    "    end if;"
+    "  end if;"
+*/
+/*
+  Install spider_alloc_mem plugin
+*/
+    "  set @have_spider_i_s_alloc_mem_plugin := 0;"
+    "  select @have_spider_i_s_alloc_mem_plugin := 1"
+    "    from INFORMATION_SCHEMA.plugins"
+    "    where PLUGIN_NAME = 'SPIDER_ALLOC_MEM';"
+    "  set @have_spider_alloc_mem_plugin := 0;"
+    "  select @have_spider_alloc_mem_plugin := 1 from mysql.plugin"
+    "    where name = 'spider_alloc_mem';"
+    "  if @have_spider_i_s_alloc_mem_plugin = 0 then"
+    "    if @have_spider_alloc_mem_plugin = 1 then"
+    "      /*"
+    "        spider_alloc_mem plugin is present in mysql.plugin but not in"
+    "        information_schema.plugins. Remove spider_alloc_mem plugin entry"
+    "        in mysql.plugin first."
+    "      */"
+    "      delete from mysql.plugin where name = 'spider_alloc_mem';"
+    "    end if;"
+    "    if @win_plugin = 0 then "
+    "      install plugin spider_alloc_mem soname 'ha_spider.so';"
+    "    else"
+    "      install plugin spider_alloc_mem soname 'ha_spider.dll';"
+    "    end if;"
+    "  end if;"
+/*
+  Install spider_wrapper_protocols plugin
+*/
+    "  set @have_spider_i_s_wrapper_protocols_plugin := 0;"
+    "  select @have_spider_i_s_wrapper_protocols_plugin := 1"
+    "    from INFORMATION_SCHEMA.plugins"
+    "    where PLUGIN_NAME = 'SPIDER_WRAPPER_PROTOCOLS';"
+    "  set @have_spider_wrapper_protocols_plugin := 0;"
+    "  select @have_spider_wrapper_protocols_plugin := 1 from mysql.plugin"
+    "    where name = 'spider_wrapper_protocols';"
+    "  if @have_spider_i_s_wrapper_protocols_plugin = 0 then"
+    "    if @have_spider_wrapper_protocols_plugin = 1 then"
+    "      /*"
+    "        spider_wrapper_protocols plugin is present in mysql.plugin but not in"
+    "        information_schema.plugins. Remove spider_wrapper_protocols plugin entry"
+    "        in mysql.plugin first."
+    "      */"
+    "      delete from mysql.plugin where name = 'spider_wrapper_protocols';"
+    "    end if;"
+    "    if @win_plugin = 0 then "
+    "      install plugin spider_wrapper_protocols soname 'ha_spider.so';"
+    "    else"
+    "      install plugin spider_wrapper_protocols soname 'ha_spider.dll';"
+    "    end if;"
+    "  end if;"
+    "  set @have_spider_direct_sql_udf := 0;"
+    "  select @have_spider_direct_sql_udf := 1 from mysql.func"
+    "    where name = 'spider_direct_sql';"
+    "  if @have_spider_direct_sql_udf = 0 then"
+    "    if @win_plugin = 0 then "
+    "      create function spider_direct_sql returns int"
+    "        soname 'ha_spider.so';"
+    "    else"
+    "      create function spider_direct_sql returns int"
+    "         soname 'ha_spider.dll';"
+    "    end if;"
+    "  end if;"
+    "  set @have_spider_bg_direct_sql_udf := 0;"
+    "  select @have_spider_bg_direct_sql_udf := 1 from mysql.func"
+    "    where name = 'spider_bg_direct_sql';"
+    "  if @have_spider_bg_direct_sql_udf = 0 then"
+    "    if @win_plugin = 0 then "
+    "      create aggregate function spider_bg_direct_sql returns int"
+    "        soname 'ha_spider.so';"
+    "    else"
+    "      create aggregate function spider_bg_direct_sql returns int"
+    "        soname 'ha_spider.dll';"
+    "    end if;"
+    "  end if;"
+    "  set @have_spider_ping_table_udf := 0;"
+    "  select @have_spider_ping_table_udf := 1 from mysql.func"
+    "    where name = 'spider_ping_table';"
+    "  if @have_spider_ping_table_udf = 0 then"
+    "    if @win_plugin = 0 then "
+    "      create function spider_ping_table returns int"
+    "        soname 'ha_spider.so';"
+    "    else"
+    "      create function spider_ping_table returns int"
+    "        soname 'ha_spider.dll';"
+    "    end if;"
+    "  end if;"
+    "  set @have_spider_copy_tables_udf := 0;"
+    "  select @have_spider_copy_tables_udf := 1 from mysql.func"
+    "    where name = 'spider_copy_tables';"
+    "  if @have_spider_copy_tables_udf = 0 then"
+    "    if @win_plugin = 0 then "
+    "      create function spider_copy_tables returns int"
+    "        soname 'ha_spider.so';"
+    "    else"
+    "      create function spider_copy_tables returns int"
+    "        soname 'ha_spider.dll';"
+    "    end if;"
+    "  end if;"
+    "  set @have_spider_flush_table_mon_cache_udf := 0;"
+    "  select @have_spider_flush_table_mon_cache_udf := 1 from mysql.func"
+    "    where name = 'spider_flush_table_mon_cache';"
+    "  if @have_spider_flush_table_mon_cache_udf = 0 then"
+    "    if @win_plugin = 0 then "
+    "      create function spider_flush_table_mon_cache returns int"
+    "        soname 'ha_spider.so';"
+    "    else"
+    "      create function spider_flush_table_mon_cache returns int"
+    "        soname 'ha_spider.dll';"
+    "    end if;"
+    "  end if;"
+    "  if @server_name = 'MariaDB' and"
+    "    ("
+    "      @server_major_version > 10 or"
+    "      ("
+    "        @server_major_version = 10 and"
+    "        @server_minor_version >= 6"
+    "      )"
+    "    )"
+    "  then"
+/*
+  Install spider_rewrite plugin
+*/
+    "    set @have_spider_i_s_rewrite_plugin := 0;"
+    "    select @have_spider_i_s_rewrite_plugin := 1"
+    "      from INFORMATION_SCHEMA.plugins"
+    "      where PLUGIN_NAME = 'SPIDER_REWRITE';"
+    "    set @have_spider_rewrite_plugin := 0;"
+    "    select @have_spider_rewrite_plugin := 1 from mysql.plugin"
+    "      where name = 'spider_rewrite';"
+    "    if @have_spider_i_s_rewrite_plugin = 0 then"
+    "      if @have_spider_rewrite_plugin = 1 then"
+    "        /*"
+    "          spider_rewrite plugin is present in mysql.plugin but not in"
+    "          information_schema.plugins. Remove spider_rewrite plugin entry"
+    "          in mysql.plugin first."
+    "        */"
+    "        delete from mysql.plugin where name = 'spider_rewrite';"
+    "      end if;"
+    "      if @win_plugin = 0 then "
+    "        install plugin spider_rewrite soname 'ha_spider.so';"
+    "      else"
+    "        install plugin spider_rewrite soname 'ha_spider.dll';"
+    "      end if;"
+    "    end if;"
+    "    set @have_spider_flush_rewrite_cache_udf := 0;"
+    "    select @have_spider_flush_rewrite_cache_udf := 1 from mysql.func"
+    "      where name = 'spider_flush_rewrite_cache';"
+    "    if @have_spider_flush_rewrite_cache_udf = 0 then"
+    "      if @win_plugin = 0 then "
+    "        create function spider_flush_rewrite_cache returns int"
+    "          soname 'ha_spider.so';"
+    "      else"
+    "        create function spider_flush_rewrite_cache returns int"
+    "          soname 'ha_spider.dll';"
+    "      end if;"
+    "    end if;"
+    "  end if;"
+    "end;"
+  )},
+  {C_STRING_WITH_LEN(
+    "call mysql.spider_plugin_installer"
+  )},
+  {C_STRING_WITH_LEN(
+    "drop procedure mysql.spider_plugin_installer"
+  )},
+  {C_STRING_WITH_LEN("")}
+};
diff --git a/storage/spider/spd_malloc.cc b/storage/spider/spd_malloc.cc
new file mode 100644
index 00000000..a9438f2a
--- /dev/null
+++ b/storage/spider/spd_malloc.cc
@@ -0,0 +1,1340 @@
+/* Copyright (C) 2012-2019 Kentoku Shiba
+   Copyright (C) 2019 MariaDB corp
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+#define MYSQL_SERVER 1
+#include <my_global.h>
+#include "mysql_version.h"
+#include "spd_environ.h"
+#if MYSQL_VERSION_ID < 50500
+#include "mysql_priv.h"
+#include <mysql/plugin.h>
+#else
+#include "sql_priv.h"
+#include "probes_mysql.h"
+#include "sql_class.h"
+#include "sql_analyse.h"
+#endif
+#include "spd_db_include.h"
+#include "spd_include.h"
+#include "spd_malloc.h"
+
+extern handlerton *spider_hton_ptr;
+
+pthread_mutex_t spider_mem_calc_mutex;
+
+const char *spider_alloc_func_name[SPIDER_MEM_CALC_LIST_NUM];
+const char *spider_alloc_file_name[SPIDER_MEM_CALC_LIST_NUM];
+ulong      spider_alloc_line_no[SPIDER_MEM_CALC_LIST_NUM];
+ulonglong  spider_total_alloc_mem[SPIDER_MEM_CALC_LIST_NUM];
+longlong   spider_current_alloc_mem[SPIDER_MEM_CALC_LIST_NUM];
+ulonglong  spider_alloc_mem_count[SPIDER_MEM_CALC_LIST_NUM];
+ulonglong  spider_free_mem_count[SPIDER_MEM_CALC_LIST_NUM];
+
+void spider_merge_mem_calc(
+  SPIDER_TRX *trx,
+  bool force
+) {
+  uint roop_count;
+  time_t tmp_time;
+  DBUG_ENTER("spider_merge_mem_calc");
+  if (force)
+  {
+    pthread_mutex_lock(&spider_mem_calc_mutex);
+    tmp_time = (time_t) time((time_t*) 0);
+  } else {
+    tmp_time = (time_t) time((time_t*) 0);
+    if (
+      difftime(tmp_time, trx->mem_calc_merge_time) < 2 ||
+      pthread_mutex_trylock(&spider_mem_calc_mutex)
+    )
+      DBUG_VOID_RETURN;
+  }
+  for (roop_count = 0; roop_count < SPIDER_MEM_CALC_LIST_NUM; roop_count++)
+  {
+    DBUG_ASSERT(!spider_alloc_func_name[roop_count] ||
+      !trx->alloc_func_name[roop_count] ||
+      spider_alloc_func_name[roop_count] == trx->alloc_func_name[roop_count]);
+    DBUG_ASSERT(!spider_alloc_file_name[roop_count] ||
+      !trx->alloc_file_name[roop_count] ||
+      spider_alloc_file_name[roop_count] == trx->alloc_file_name[roop_count]);
+    DBUG_ASSERT(!spider_alloc_line_no[roop_count] ||
+      !trx->alloc_line_no[roop_count] ||
+      spider_alloc_line_no[roop_count] == trx->alloc_line_no[roop_count]);
+    if (trx->alloc_func_name[roop_count])
+    {
+      spider_alloc_func_name[roop_count] = trx->alloc_func_name[roop_count];
+      spider_alloc_file_name[roop_count] = trx->alloc_file_name[roop_count];
+      spider_alloc_line_no[roop_count] = trx->alloc_line_no[roop_count];
+      spider_total_alloc_mem[roop_count] +=
+        trx->total_alloc_mem_buffer[roop_count];
+      trx->total_alloc_mem_buffer[roop_count] = 0;
+      spider_alloc_mem_count[roop_count] +=
+        trx->alloc_mem_count_buffer[roop_count];
+      trx->alloc_mem_count_buffer[roop_count] = 0;
+    }
+    spider_current_alloc_mem[roop_count] +=
+      trx->current_alloc_mem_buffer[roop_count];
+    trx->current_alloc_mem_buffer[roop_count] = 0;
+    spider_free_mem_count[roop_count] +=
+      trx->free_mem_count_buffer[roop_count];
+    trx->free_mem_count_buffer[roop_count] = 0;
+  }
+  pthread_mutex_unlock(&spider_mem_calc_mutex);
+  trx->mem_calc_merge_time = tmp_time;
+  DBUG_VOID_RETURN;
+}
+
+void spider_free_mem_calc(
+  SPIDER_TRX *trx,
+  uint id,
+  size_t size
+) {
+  DBUG_ENTER("spider_free_mem_calc");
+  DBUG_ASSERT(id < SPIDER_MEM_CALC_LIST_NUM);
+  DBUG_PRINT("info",("spider trx=%p id=%u size=%llu",
+    trx, id, (ulonglong) size));
+  if (trx)
+  {
+    DBUG_PRINT("info",("spider calc into trx"));
+    trx->current_alloc_mem[id] -= size;
+    trx->current_alloc_mem_buffer[id] -= size;
+    trx->free_mem_count[id] += 1;
+    trx->free_mem_count_buffer[id] += 1;
+  } else {
+    DBUG_PRINT("info",("spider calc into global"));
+    pthread_mutex_lock(&spider_mem_calc_mutex);
+    spider_current_alloc_mem[id] -= size;
+    spider_free_mem_count[id] += 1;
+    pthread_mutex_unlock(&spider_mem_calc_mutex);
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_alloc_mem_calc(
+  SPIDER_TRX *trx,
+  uint id,
+  const char *func_name,
+  const char *file_name,
+  ulong line_no,
+  size_t size
+) {
+  DBUG_ENTER("spider_alloc_mem_calc");
+  DBUG_ASSERT(id < SPIDER_MEM_CALC_LIST_NUM);
+  DBUG_PRINT("info",("spider trx=%p id=%u size=%llu",
+    trx, id, (ulonglong) size));
+  if (trx)
+  {
+    DBUG_PRINT("info",("spider calc into trx"));
+    DBUG_ASSERT(!trx->alloc_func_name[id] ||
+      trx->alloc_func_name[id] == func_name);
+    DBUG_ASSERT(!trx->alloc_file_name[id] ||
+      trx->alloc_file_name[id] == file_name);
+    DBUG_ASSERT(!trx->alloc_line_no[id] ||
+      trx->alloc_line_no[id] == line_no);
+    trx->alloc_func_name[id] = func_name;
+    trx->alloc_file_name[id] = file_name;
+    trx->alloc_line_no[id] = line_no;
+    trx->total_alloc_mem[id] += size;
+    trx->total_alloc_mem_buffer[id] += size;
+    trx->current_alloc_mem[id] += size;
+    trx->current_alloc_mem_buffer[id] += size;
+    trx->alloc_mem_count[id] += 1;
+    trx->alloc_mem_count_buffer[id] += 1;
+  } else {
+    DBUG_PRINT("info",("spider calc into global"));
+    pthread_mutex_lock(&spider_mem_calc_mutex);
+    DBUG_ASSERT(!spider_alloc_func_name[id] ||
+      spider_alloc_func_name[id] == func_name);
+    DBUG_ASSERT(!spider_alloc_file_name[id] ||
+      spider_alloc_file_name[id] == file_name);
+    DBUG_ASSERT(!spider_alloc_line_no[id] ||
+      spider_alloc_line_no[id] == line_no);
+    spider_alloc_func_name[id] = func_name;
+    spider_alloc_file_name[id] = file_name;
+    spider_alloc_line_no[id] = line_no;
+    spider_total_alloc_mem[id] += size;
+    spider_current_alloc_mem[id] += size;
+    spider_alloc_mem_count[id] += 1;
+    pthread_mutex_unlock(&spider_mem_calc_mutex);
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_free_mem(
+  SPIDER_TRX *trx,
+  void *ptr,
+  myf my_flags
+) {
+  uint id, size;
+  uchar *tmp_ptr = (uchar *) ptr;
+  DBUG_ENTER("spider_free_mem");
+  tmp_ptr -= ALIGN_SIZE(sizeof(uint));
+  size = *((uint *) tmp_ptr);
+  tmp_ptr -= ALIGN_SIZE(sizeof(uint));
+  id = *((uint *) tmp_ptr);
+  spider_my_free(tmp_ptr, my_flags);
+
+  spider_free_mem_calc(trx, id, size);
+  DBUG_VOID_RETURN;
+}
+
+void *spider_alloc_mem(
+  SPIDER_TRX *trx,
+  uint id,
+  const char *func_name,
+  const char *file_name,
+  ulong line_no,
+  size_t size,
+  myf my_flags
+) {
+  uchar *ptr;
+  DBUG_ENTER("spider_alloc_mem");
+  size += ALIGN_SIZE(sizeof(uint)) + ALIGN_SIZE(sizeof(uint));
+  if (!(ptr = (uchar *) my_malloc(PSI_INSTRUMENT_ME, size, my_flags)))
+    DBUG_RETURN(NULL);
+
+  spider_alloc_mem_calc(trx, id, func_name, file_name, line_no, size);
+  *((uint *) ptr) = id;
+  ptr += ALIGN_SIZE(sizeof(uint));
+  *((uint *) ptr) = size;
+  ptr += ALIGN_SIZE(sizeof(uint));
+  DBUG_RETURN(ptr);
+}
+
+void *spider_bulk_alloc_mem(
+  SPIDER_TRX *trx,
+  uint id,
+  const char *func_name,
+  const char *file_name,
+  ulong line_no,
+  myf my_flags,
+  ...
+) {
+  uchar **tmp_ptr, *top_ptr, *current_ptr;
+  uint total_size;
+  va_list args;
+  DBUG_ENTER("spider_bulk_alloc_mem");
+  total_size = ALIGN_SIZE(sizeof(uint)) + ALIGN_SIZE(sizeof(uint));
+  va_start(args, my_flags);
+  while (va_arg(args, char **))
+    total_size += ALIGN_SIZE(va_arg(args, uint));
+  va_end(args);
+
+  if (!(top_ptr = (uchar *) my_malloc(PSI_INSTRUMENT_ME, total_size, my_flags)))
+    DBUG_RETURN(NULL);
+
+  spider_alloc_mem_calc(trx, id, func_name, file_name, line_no, total_size);
+  *((uint *) top_ptr) = id;
+  top_ptr += ALIGN_SIZE(sizeof(uint));
+  *((uint *) top_ptr) = total_size;
+  top_ptr += ALIGN_SIZE(sizeof(uint));
+
+  current_ptr = top_ptr;
+  va_start(args, my_flags);
+  while ((tmp_ptr = (uchar **) va_arg(args, char **)))
+  {
+    *tmp_ptr = current_ptr;
+    current_ptr += ALIGN_SIZE(va_arg(args, uint));
+  }
+  va_end(args);
+  DBUG_RETURN((void *) top_ptr);
+}
+
+#define SPIDER_STRING_CALC_MEM \
+  if (mem_calc_inited) \
+  { \
+    uint32 new_alloc_mem = \
+      (this->str.is_alloced() ? this->str.alloced_length() : 0); \
+    if (new_alloc_mem != current_alloc_mem) \
+    { \
+      if (new_alloc_mem > current_alloc_mem) \
+        spider_alloc_mem_calc(spider_current_trx, id, func_name, file_name, \
+          line_no, new_alloc_mem - current_alloc_mem); \
+      else \
+        spider_free_mem_calc(spider_current_trx, id, \
+          current_alloc_mem - new_alloc_mem); \
+      current_alloc_mem = new_alloc_mem; \
+    } \
+  }
+
+spider_string::spider_string(
+) : str(), next(NULL)
+{
+  DBUG_ENTER("spider_string::spider_string");
+  DBUG_PRINT("info",("spider this=%p", this));
+  mem_calc_inited = FALSE;
+  DBUG_VOID_RETURN;
+}
+
+spider_string::spider_string(
+  uint32 length_arg
+) : str(length_arg), next(NULL)
+{
+  DBUG_ENTER("spider_string::spider_string");
+  DBUG_PRINT("info",("spider this=%p", this));
+  mem_calc_inited = FALSE;
+  DBUG_VOID_RETURN;
+}
+
+spider_string::spider_string(
+  const char *str,
+  CHARSET_INFO *cs
+) : str(str, cs), next(NULL)
+{
+  DBUG_ENTER("spider_string::spider_string");
+  DBUG_PRINT("info",("spider this=%p", this));
+  mem_calc_inited = FALSE;
+  DBUG_VOID_RETURN;
+}
+
+spider_string::spider_string(
+  const char *str,
+  uint32 len,
+  CHARSET_INFO *cs
+) : str(str, len, cs), next(NULL)
+{
+  DBUG_ENTER("spider_string::spider_string");
+  DBUG_PRINT("info",("spider this=%p", this));
+  mem_calc_inited = FALSE;
+  DBUG_VOID_RETURN;
+}
+
+spider_string::spider_string(
+  char *str,
+  uint32 len,
+  CHARSET_INFO *cs
+) : str(str, len, cs), next(NULL)
+{
+  DBUG_ENTER("spider_string::spider_string");
+  DBUG_PRINT("info",("spider this=%p", this));
+  mem_calc_inited = FALSE;
+  DBUG_VOID_RETURN;
+}
+
+spider_string::spider_string(
+  const String &str
+) : str(str), next(NULL)
+{
+  DBUG_ENTER("spider_string::spider_string");
+  DBUG_PRINT("info",("spider this=%p", this));
+  mem_calc_inited = FALSE;
+  DBUG_VOID_RETURN;
+}
+
+spider_string::~spider_string()
+{
+  DBUG_ENTER("spider_string::~spider_string");
+  DBUG_PRINT("info",("spider this=%p", this));
+  if (mem_calc_inited)
+    free();
+  DBUG_VOID_RETURN;
+}
+
+void spider_string::init_mem_calc(
+  uint id,
+  const char *func_name,
+  const char *file_name,
+  ulong line_no
+) {
+  DBUG_ENTER("spider_string::init_mem_calc");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(!mem_calc_inited);
+  this->id = id;
+  this->func_name = func_name;
+  this->file_name = file_name;
+  this->line_no = line_no;
+  if (str.is_alloced())
+  {
+    current_alloc_mem = str.alloced_length();
+    spider_alloc_mem_calc(spider_current_trx, id, func_name, file_name,
+      line_no, current_alloc_mem);
+  } else
+    current_alloc_mem = 0;
+  mem_calc_inited = TRUE;
+  DBUG_VOID_RETURN;
+}
+
+void spider_string::mem_calc()
+{
+  DBUG_ENTER("spider_string::mem_calc");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_VOID_RETURN;
+}
+
+String *spider_string::get_str()
+{
+  DBUG_ENTER("spider_string::get_str");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(&str);
+}
+
+void spider_string::set_charset(
+  CHARSET_INFO *charset_arg
+) {
+  DBUG_ENTER("spider_string::set_charset");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str.set_charset(charset_arg);
+  DBUG_VOID_RETURN;
+}
+
+CHARSET_INFO *spider_string::charset() const
+{
+  DBUG_ENTER("spider_string::charset");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(str.charset());
+}
+
+uint32 spider_string::length() const
+{
+  DBUG_ENTER("spider_string::length");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(str.length());
+}
+
+uint32 spider_string::alloced_length() const
+{
+  DBUG_ENTER("spider_string::alloced_length");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(str.alloced_length());
+}
+
+char &spider_string::operator [] (uint32 i) const
+{
+  DBUG_ENTER("spider_string::operator []");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(str[i]);
+}
+
+void spider_string::length(
+  uint32 len
+) {
+  DBUG_ENTER("spider_string::length");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str.length(len);
+  DBUG_VOID_RETURN;
+}
+
+bool spider_string::is_empty() const
+{
+  DBUG_ENTER("spider_string::is_empty");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(str.is_empty());
+}
+
+const char *spider_string::ptr() const
+{
+  DBUG_ENTER("spider_string::ptr");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(str.ptr());
+}
+
+char *spider_string::c_ptr()
+{
+  DBUG_ENTER("spider_string::c_ptr");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  char *res = str.c_ptr();
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+char *spider_string::c_ptr_quick()
+{
+  DBUG_ENTER("spider_string::c_ptr_quick");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(str.c_ptr_quick());
+}
+
+char *spider_string::c_ptr_safe()
+{
+  DBUG_ENTER("spider_string::c_ptr_safe");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  char *res = str.c_ptr_safe();
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+LEX_STRING spider_string::lex_string() const
+{
+  LEX_STRING res= { (char*) str.ptr(), str.length() };
+  DBUG_ENTER("spider_string::lex_string");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(res);
+}
+
+void spider_string::set(
+  String &str,
+  uint32 offset,
+  uint32 arg_length
+) {
+  DBUG_ENTER("spider_string::set");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  str.set(str, offset, arg_length);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_VOID_RETURN;
+}
+
+void spider_string::set(
+  char *str,
+  uint32 arg_length,
+  CHARSET_INFO *cs
+) {
+  DBUG_ENTER("spider_string::set");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !this->str.is_alloced()) ||
+    current_alloc_mem == this->str.alloced_length());
+  this->str.set(str, arg_length, cs);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_VOID_RETURN;
+}
+
+void spider_string::set(
+  const char *str,
+  uint32 arg_length,
+  CHARSET_INFO *cs
+) {
+  DBUG_ENTER("spider_string::set");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !this->str.is_alloced()) ||
+    current_alloc_mem == this->str.alloced_length());
+  this->str.set(str, arg_length, cs);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_VOID_RETURN;
+}
+
+bool spider_string::set_ascii(
+  const char *str,
+  uint32 arg_length
+) {
+  DBUG_ENTER("spider_string::set_ascii");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !this->str.is_alloced()) ||
+    current_alloc_mem == this->str.alloced_length());
+  bool res = this->str.set_ascii(str, arg_length);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+void spider_string::set_quick(
+  char *str,
+  uint32 arg_length,
+  CHARSET_INFO *cs
+) {
+  DBUG_ENTER("spider_string::set_quick");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !this->str.is_alloced()) ||
+    current_alloc_mem == this->str.alloced_length());
+  this->str.set_quick(str, arg_length, cs);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_VOID_RETURN;
+}
+
+bool spider_string::set_int(
+  longlong num,
+  bool unsigned_flag,
+  CHARSET_INFO *cs
+) {
+  DBUG_ENTER("spider_string::set_int");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  bool res = str.set_int(num, unsigned_flag, cs);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+bool spider_string::set(
+  longlong num,
+  CHARSET_INFO *cs
+) {
+  DBUG_ENTER("spider_string::set");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  bool res = str.set(num, cs);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+bool spider_string::set(
+  ulonglong num,
+  CHARSET_INFO *cs
+) {
+  DBUG_ENTER("spider_string::set");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  bool res = str.set(num, cs);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+bool spider_string::set_real(
+  double num,
+  uint decimals,
+  CHARSET_INFO *cs
+) {
+  DBUG_ENTER("spider_string::set_real");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  bool res = str.set_real(num, decimals, cs);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+void spider_string::chop()
+{
+  DBUG_ENTER("spider_string::chop");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str.chop();
+  DBUG_VOID_RETURN;
+}
+
+void spider_string::free()
+{
+  DBUG_ENTER("spider_string::free");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  str.free();
+  if (mem_calc_inited && current_alloc_mem)
+  {
+    spider_free_mem_calc(spider_current_trx, id, current_alloc_mem);
+    current_alloc_mem = 0;
+  }
+  DBUG_VOID_RETURN;
+}
+
+bool spider_string::alloc(uint32 arg_length)
+{
+  bool res;
+  DBUG_ENTER("spider_string::alloc");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  res = str.alloc(arg_length);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+bool spider_string::real_alloc(uint32 arg_length)
+{
+  bool res;
+  DBUG_ENTER("spider_string::real_alloc");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  res = str.real_alloc(arg_length);
+/*
+  if (mem_calc_inited && !res && arg_length)
+*/
+  if (mem_calc_inited && !res)
+  {
+    DBUG_ASSERT(!current_alloc_mem);
+    spider_alloc_mem_calc(spider_current_trx, id, func_name, file_name,
+      line_no, str.alloced_length());
+    current_alloc_mem = str.alloced_length();
+  }
+  DBUG_RETURN(res);
+}
+
+bool spider_string::realloc(uint32 arg_length)
+{
+  bool res;
+  DBUG_ENTER("spider_string::realloc");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  res = str.realloc(arg_length);
+  if (mem_calc_inited && !res && current_alloc_mem < str.alloced_length())
+  {
+    spider_alloc_mem_calc(spider_current_trx, id, func_name, file_name,
+      line_no, str.alloced_length() - current_alloc_mem);
+    current_alloc_mem = str.alloced_length();
+  }
+  DBUG_RETURN(res);
+}
+
+void spider_string::shrink(
+  uint32 arg_length
+) {
+  DBUG_ENTER("spider_string::shrink");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  str.shrink(arg_length);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_VOID_RETURN;
+}
+
+bool spider_string::is_alloced()
+{
+  DBUG_ENTER("spider_string::is_alloced");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(str.is_alloced());
+}
+
+spider_string &spider_string::operator = (
+  const String &s
+) {
+  DBUG_ENTER("spider_string::operator =");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  str = s;
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(*this);
+}
+
+bool spider_string::copy()
+{
+  DBUG_ENTER("spider_string::copy");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  bool res = str.copy();
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+bool spider_string::copy(
+  const spider_string &s
+) {
+  DBUG_ENTER("spider_string::copy");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  bool res = str.copy(s.str);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+bool spider_string::copy(
+  const String &s
+) {
+  DBUG_ENTER("spider_string::copy");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  bool res = str.copy(s);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+bool spider_string::copy(
+  const char *s,
+  uint32 arg_length,
+  CHARSET_INFO *cs
+) {
+  DBUG_ENTER("spider_string::copy");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  bool res = str.copy(s, arg_length, cs);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+bool spider_string::needs_conversion(
+  uint32 arg_length,
+  CHARSET_INFO *cs_from,
+  CHARSET_INFO *cs_to,
+  uint32 *offset
+) {
+  DBUG_ENTER("spider_string::needs_conversion");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(str.needs_conversion(arg_length, cs_from, cs_to, offset));
+}
+
+bool spider_string::copy_aligned(
+  const char *s,
+  uint32 arg_length,
+  uint32 offset,
+  CHARSET_INFO *cs
+) {
+  DBUG_ENTER("spider_string::copy_aligned");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  bool res = str.copy_aligned(s, arg_length, offset, cs);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+bool spider_string::set_or_copy_aligned(
+  const char *s,
+  uint32 arg_length,
+  CHARSET_INFO *cs
+) {
+  DBUG_ENTER("spider_string::set_or_copy_aligned");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  bool res = str.set_or_copy_aligned(s, arg_length, cs);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+bool spider_string::copy(
+  const char *s,
+  uint32 arg_length,
+  CHARSET_INFO *csfrom,
+  CHARSET_INFO *csto,
+  uint *errors
+) {
+  DBUG_ENTER("spider_string::copy");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  bool res = str.copy(s, arg_length, csfrom, csto, errors);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+bool spider_string::append(
+  const spider_string &s
+) {
+  DBUG_ENTER("spider_string::append");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  bool res = str.append(s.str);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+bool spider_string::append(
+  const String &s
+) {
+  DBUG_ENTER("spider_string::append");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  bool res = str.append(s);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+bool spider_string::append(
+  const char *s
+) {
+  DBUG_ENTER("spider_string::append");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  bool res = str.append(s);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+bool spider_string::append(
+  LEX_STRING *ls
+) {
+  DBUG_ENTER("spider_string::append");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  bool res = str.append(ls);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+bool spider_string::append(
+  const char *s,
+  uint32 arg_length
+) {
+  DBUG_ENTER("spider_string::append");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  bool res = str.append(s, arg_length);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+bool spider_string::append(
+  const char *s,
+  uint32 arg_length,
+  CHARSET_INFO *cs
+) {
+  DBUG_ENTER("spider_string::append");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  bool res = str.append(s, arg_length, cs);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+bool spider_string::append_ulonglong(
+  ulonglong val
+) {
+  DBUG_ENTER("spider_string::append_ulonglong");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  bool res = str.append_ulonglong(val);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+bool spider_string::append(
+  IO_CACHE *file,
+  uint32 arg_length
+) {
+  DBUG_ENTER("spider_string::append");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  bool res = str.append(file, arg_length);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+bool spider_string::append_with_prefill(
+  const char *s,
+  uint32 arg_length,
+  uint32 full_length,
+  char fill_char
+) {
+  DBUG_ENTER("spider_string::append_with_prefill");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  bool res = str.append_with_prefill(s, arg_length, full_length,
+    fill_char);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+int spider_string::strstr(
+  const String &search,
+  uint32 offset
+) {
+  DBUG_ENTER("spider_string::strstr");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(str.strstr(search, offset));
+}
+
+int spider_string::strrstr(
+  const String &search,
+  uint32 offset
+) {
+  DBUG_ENTER("spider_string::strrstr");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(str.strrstr(search, offset));
+}
+
+bool spider_string::replace(
+  uint32 offset,
+  uint32 arg_length,
+  const char *to,
+  uint32 length
+) {
+  DBUG_ENTER("spider_string::replace");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  bool res = str.replace(offset, arg_length, to, length);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+bool spider_string::replace(
+  uint32 offset,
+  uint32 arg_length,
+  const String &to
+) {
+  DBUG_ENTER("spider_string::replace");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  bool res = str.replace(offset, arg_length, to);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+bool spider_string::append(
+  char chr
+) {
+  DBUG_ENTER("spider_string::append");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  bool res = str.append(chr);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+bool spider_string::fill(
+  uint32 max_length,
+  char fill
+) {
+  DBUG_ENTER("spider_string::fill");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  bool res = str.fill(max_length, fill);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+void spider_string::strip_sp()
+{
+  DBUG_ENTER("spider_string::strip_sp");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str.strip_sp();
+  DBUG_VOID_RETURN;
+}
+
+uint32 spider_string::numchars()
+{
+  DBUG_ENTER("spider_string::numchars");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(str.numchars());
+}
+
+int spider_string::charpos(
+  int i,
+  uint32 offset
+) {
+  DBUG_ENTER("spider_string::charpos");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(str.charpos(i, offset));
+}
+
+int spider_string::reserve(
+  uint32 space_needed
+) {
+  DBUG_ENTER("spider_string::reserve");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  int res = str.reserve(space_needed);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+int spider_string::reserve(
+  uint32 space_needed,
+  uint32 grow_by
+) {
+  DBUG_ENTER("spider_string::reserve");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  int res = str.reserve(space_needed, grow_by);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+void spider_string::q_append(
+  const char c
+) {
+  DBUG_ENTER("spider_string::q_append");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str.q_append(c);
+  DBUG_VOID_RETURN;
+}
+
+void spider_string::q_append(
+  const uint32 n
+) {
+  DBUG_ENTER("spider_string::q_append");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str.q_append(n);
+  DBUG_VOID_RETURN;
+}
+
+void spider_string::q_append(
+  double d
+) {
+  DBUG_ENTER("spider_string::q_append");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str.q_append(d);
+  DBUG_VOID_RETURN;
+}
+
+void spider_string::q_append(
+  double *d
+) {
+  DBUG_ENTER("spider_string::q_append");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str.q_append(d);
+  DBUG_VOID_RETURN;
+}
+
+void spider_string::q_append(
+  const char *data,
+  uint32 data_len
+) {
+  DBUG_ENTER("spider_string::q_append");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(str.alloced_length() >= str.length() + data_len);
+  str.q_append(data, data_len);
+  DBUG_VOID_RETURN;
+}
+
+void spider_string::write_at_position(
+  int position,
+  uint32 value
+) {
+  DBUG_ENTER("spider_string::write_at_position");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str.write_at_position(position, value);
+  DBUG_VOID_RETURN;
+}
+
+void spider_string::qs_append(
+  const char *str,
+  uint32 len
+) {
+  DBUG_ENTER("spider_string::qs_append");
+  DBUG_PRINT("info",("spider this=%p", this));
+  this->str.qs_append(str, len);
+  DBUG_VOID_RETURN;
+}
+
+void spider_string::qs_append(
+  double d
+) {
+  DBUG_ENTER("spider_string::qs_append");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str.qs_append(d);
+  DBUG_VOID_RETURN;
+}
+
+void spider_string::qs_append(
+  double *d
+) {
+  DBUG_ENTER("spider_string::qs_append");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str.qs_append(d);
+  DBUG_VOID_RETURN;
+}
+
+void spider_string::qs_append(
+  const char c
+) {
+  DBUG_ENTER("spider_string::qs_append");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str.qs_append(c);
+  DBUG_VOID_RETURN;
+}
+
+void spider_string::qs_append(
+  int i
+) {
+  DBUG_ENTER("spider_string::qs_append");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str.qs_append(i);
+  DBUG_VOID_RETURN;
+}
+
+void spider_string::qs_append(
+  uint i
+) {
+  DBUG_ENTER("spider_string::qs_append");
+  DBUG_PRINT("info",("spider this=%p", this));
+  str.qs_append(i);
+  DBUG_VOID_RETURN;
+}
+
+char *spider_string::prep_append(
+  uint32 arg_length,
+  uint32 step_alloc
+) {
+  DBUG_ENTER("spider_string::prep_append");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  char *res = str.prep_append(arg_length, step_alloc);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+bool spider_string::append(
+  const char *s,
+  uint32 arg_length,
+  uint32 step_alloc
+) {
+  DBUG_ENTER("spider_string::append");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  bool res = str.append(s, arg_length, step_alloc);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+void spider_string::append_escape_string(
+  const char *st,
+  uint len
+) {
+  DBUG_ENTER("spider_string::append_escape_string");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  str.length(str.length() + escape_string_for_mysql(
+    str.charset(), (char *) str.ptr() + str.length(), 0, st, len));
+  DBUG_VOID_RETURN;
+}
+
+void spider_string::append_escape_string(
+  const char *st,
+  uint len,
+  CHARSET_INFO *cs
+) {
+  DBUG_ENTER("spider_string::append_escape_string");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  str.length(str.length() + escape_string_for_mysql(
+    cs, (char *) str.ptr() + str.length(), 0, st, len));
+  DBUG_VOID_RETURN;
+}
+
+bool spider_string::append_for_single_quote(
+  const char *st,
+  uint len
+) {
+  DBUG_ENTER("spider_string::append_for_single_quote");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+#ifdef SPIDER_HAS_APPEND_FOR_SINGLE_QUOTE
+  bool res = str.append_for_single_quote(st, len);
+#else
+  String ststr(st, len, str.charset());
+  bool res = append_escaped(&str, &ststr);
+#endif
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+bool spider_string::append_for_single_quote(
+  const String *s
+) {
+  DBUG_ENTER("spider_string::append_for_single_quote");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+#ifdef SPIDER_HAS_APPEND_FOR_SINGLE_QUOTE
+  bool res = str.append_for_single_quote(s);
+#else
+  bool res = append_escaped(&str, (String *) s);
+#endif
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+bool spider_string::append_for_single_quote(
+  const char *st
+) {
+  DBUG_ENTER("spider_string::append_for_single_quote");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+#ifdef SPIDER_HAS_APPEND_FOR_SINGLE_QUOTE
+  bool res = str.append_for_single_quote(st);
+#else
+  String ststr(st, str.charset());
+  bool res = append_escaped(&str, &ststr);
+#endif
+  SPIDER_STRING_CALC_MEM;
+  DBUG_RETURN(res);
+}
+
+void spider_string::swap(
+  spider_string &s
+) {
+  DBUG_ENTER("spider_string::swap");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  str.swap(s.str);
+  SPIDER_STRING_CALC_MEM;
+  DBUG_VOID_RETURN;
+}
+
+bool spider_string::uses_buffer_owned_by(
+  const String *s
+) const
+{
+  DBUG_ENTER("spider_string::uses_buffer_owned_by");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(str.uses_buffer_owned_by(s));
+}
+
+bool spider_string::is_ascii() const
+{
+  DBUG_ENTER("spider_string::is_ascii");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_RETURN(str.is_ascii());
+}
diff --git a/storage/spider/spd_malloc.h b/storage/spider/spd_malloc.h
new file mode 100644
index 00000000..9e97e039
--- /dev/null
+++ b/storage/spider/spd_malloc.h
@@ -0,0 +1,80 @@
+/* Copyright (C) 2012-2019 Kentoku Shiba
+   Copyright (C) 2019 MariaDB corp
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+#define spider_free(A,B,C) spider_free_mem(A,B,C)
+#define spider_malloc(A,B,C,D) \
+  spider_alloc_mem(A,B,__func__,__FILE__,__LINE__,C,D)
+#define spider_bulk_malloc(A,B,C,...) \
+  spider_bulk_alloc_mem(A,B,__func__,__FILE__,__LINE__,C,__VA_ARGS__)
+#define spider_current_trx \
+  (current_thd && spider_hton_ptr->slot != HA_SLOT_UNDEF ? ((SPIDER_TRX *) thd_get_ha_data(current_thd, spider_hton_ptr)) : NULL)
+
+#define init_calc_mem(A) init_mem_calc(A,__func__,__FILE__,__LINE__)
+
+#define SPIDER_CALC_MEM_ID(name) name ## _id
+#define SPIDER_CALC_MEM_FUNC(name) name ## _func_name
+#define SPIDER_CALC_MEM_FILE(name) name ## _file_name
+#define SPIDER_CALC_MEM_LINE(name) name ## _line_no
+#define spider_alloc_calc_mem_init(A,B) \
+  {SPIDER_CALC_MEM_ID(A) = B; SPIDER_CALC_MEM_FUNC(A) = __func__; SPIDER_CALC_MEM_FILE(A) = __FILE__; SPIDER_CALC_MEM_LINE(A) = __LINE__;}
+#define spider_alloc_calc_mem(A,B,C) \
+  spider_alloc_mem_calc(A,SPIDER_CALC_MEM_ID(B),SPIDER_CALC_MEM_FUNC(B),SPIDER_CALC_MEM_FILE(B),SPIDER_CALC_MEM_LINE(B),C)
+
+void spider_merge_mem_calc(
+  SPIDER_TRX *trx,
+  bool force
+);
+
+void spider_free_mem_calc(
+  SPIDER_TRX *trx,
+  uint id,
+  size_t size
+);
+
+void spider_alloc_mem_calc(
+  SPIDER_TRX *trx,
+  uint id,
+  const char *func_name,
+  const char *file_name,
+  ulong line_no,
+  size_t size
+);
+
+void spider_free_mem(
+  SPIDER_TRX *trx,
+  void *ptr,
+  myf my_flags
+);
+
+void *spider_alloc_mem(
+  SPIDER_TRX *trx,
+  uint id,
+  const char *func_name,
+  const char *file_name,
+  ulong line_no,
+  size_t size,
+  myf my_flags
+);
+
+void *spider_bulk_alloc_mem(
+  SPIDER_TRX *trx,
+  uint id,
+  const char *func_name,
+  const char *file_name,
+  ulong line_no,
+  myf my_flags,
+  ...
+);
diff --git a/storage/spider/spd_param.cc b/storage/spider/spd_param.cc
new file mode 100644
index 00000000..ec0949b5
--- /dev/null
+++ b/storage/spider/spd_param.cc
@@ -0,0 +1,3681 @@
+/* Copyright (C) 2008-2018 Kentoku Shiba
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+#define MYSQL_SERVER 1
+#include <my_global.h>
+#include "mysql_version.h"
+#include "spd_environ.h"
+#if MYSQL_VERSION_ID < 50500
+#include "mysql_priv.h"
+#include <mysql/plugin.h>
+#else
+#include "sql_priv.h"
+#include "probes_mysql.h"
+#include "sql_class.h"
+#include "sql_partition.h"
+#endif
+#include <my_getopt.h>
+#include "spd_err.h"
+#include "spd_db_include.h"
+#include "spd_include.h"
+#include "ha_spider.h"
+#include "spd_table.h"
+#include "spd_trx.h"
+
+extern struct st_mysql_plugin spider_i_s_alloc_mem;
+extern struct st_mysql_plugin spider_i_s_wrapper_protocols;
+#ifdef MARIADB_BASE_VERSION
+extern struct st_maria_plugin spider_i_s_alloc_mem_maria;
+extern struct st_maria_plugin spider_i_s_wrapper_protocols_maria;
+#endif
+
+extern volatile ulonglong spider_mon_table_cache_version;
+extern volatile ulonglong spider_mon_table_cache_version_req;
+
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+static int spider_direct_update(THD *thd, SHOW_VAR *var, char *buff)
+{
+  int error_num = 0;
+  SPIDER_TRX *trx;
+  DBUG_ENTER("spider_direct_update");
+  var->type = SHOW_LONGLONG;
+  if ((trx = spider_get_trx(thd, TRUE, &error_num)))
+    var->value = (char *) &trx->direct_update_count;
+  DBUG_RETURN(error_num);
+}
+
+static int spider_direct_delete(THD *thd, SHOW_VAR *var, char *buff)
+{
+  int error_num = 0;
+  SPIDER_TRX *trx;
+  DBUG_ENTER("spider_direct_delete");
+  var->type = SHOW_LONGLONG;
+  if ((trx = spider_get_trx(thd, TRUE, &error_num)))
+    var->value = (char *) &trx->direct_delete_count;
+  DBUG_RETURN(error_num);
+}
+#endif
+
+static int spider_direct_order_limit(THD *thd, SHOW_VAR *var, char *buff)
+{
+  int error_num = 0;
+  SPIDER_TRX *trx;
+  DBUG_ENTER("spider_direct_order_limit");
+  var->type = SHOW_LONGLONG;
+  if ((trx = spider_get_trx(thd, TRUE, &error_num)))
+    var->value = (char *) &trx->direct_order_limit_count;
+  DBUG_RETURN(error_num);
+}
+
+static int spider_direct_aggregate(THD *thd, SHOW_VAR *var, char *buff)
+{
+  int error_num = 0;
+  SPIDER_TRX *trx;
+  DBUG_ENTER("spider_direct_aggregate");
+  var->type = SHOW_LONGLONG;
+  if ((trx = spider_get_trx(thd, TRUE, &error_num)))
+    var->value = (char *) &trx->direct_aggregate_count;
+  DBUG_RETURN(error_num);
+}
+
+static int spider_parallel_search(THD *thd, SHOW_VAR *var, char *buff)
+{
+  int error_num = 0;
+  SPIDER_TRX *trx;
+  DBUG_ENTER("spider_parallel_search");
+  var->type = SHOW_LONGLONG;
+  if ((trx = spider_get_trx(thd, TRUE, &error_num)))
+    var->value = (char *) &trx->parallel_search_count;
+  DBUG_RETURN(error_num);
+}
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+static int spider_hs_result_free(THD *thd, SHOW_VAR *var, char *buff)
+{
+  int error_num = 0;
+  SPIDER_TRX *trx;
+  DBUG_ENTER("spider_hs_result_free");
+  var->type = SHOW_LONGLONG;
+  if ((trx = spider_get_trx(thd, TRUE, &error_num)))
+    var->value = (char *) &trx->hs_result_free_count;
+  DBUG_RETURN(error_num);
+}
+#endif
+
+struct st_mysql_show_var spider_status_variables[] =
+{
+  {"Spider_mon_table_cache_version",
+    (char *) &spider_mon_table_cache_version, SHOW_LONGLONG},
+  {"Spider_mon_table_cache_version_req",
+    (char *) &spider_mon_table_cache_version_req, SHOW_LONGLONG},
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+#ifdef SPIDER_HAS_SHOW_SIMPLE_FUNC
+  {"Spider_direct_update", (char *) &spider_direct_update, SHOW_SIMPLE_FUNC},
+  {"Spider_direct_delete", (char *) &spider_direct_delete, SHOW_SIMPLE_FUNC},
+#else
+  {"Spider_direct_update", (char *) &spider_direct_update, SHOW_FUNC},
+  {"Spider_direct_delete", (char *) &spider_direct_delete, SHOW_FUNC},
+#endif
+#endif
+#ifdef SPIDER_HAS_SHOW_SIMPLE_FUNC
+  {"Spider_direct_order_limit",
+    (char *) &spider_direct_order_limit, SHOW_SIMPLE_FUNC},
+  {"Spider_direct_aggregate",
+    (char *) &spider_direct_aggregate, SHOW_SIMPLE_FUNC},
+  {"Spider_parallel_search",
+    (char *) &spider_parallel_search, SHOW_SIMPLE_FUNC},
+#else
+  {"Spider_direct_order_limit",
+    (char *) &spider_direct_order_limit, SHOW_FUNC},
+  {"Spider_direct_aggregate",
+    (char *) &spider_direct_aggregate, SHOW_FUNC},
+  {"Spider_parallel_search",
+    (char *) &spider_parallel_search, SHOW_FUNC},
+#endif
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+#ifdef SPIDER_HAS_SHOW_SIMPLE_FUNC
+  {"Spider_hs_result_free", (char *) &spider_hs_result_free, SHOW_SIMPLE_FUNC},
+#else
+  {"Spider_hs_result_free", (char *) &spider_hs_result_free, SHOW_FUNC},
+#endif
+#endif
+  {NullS, NullS, SHOW_LONG}
+};
+
+typedef DECLARE_MYSQL_THDVAR_SIMPLE(thdvar_int_t, int);
+#if MYSQL_VERSION_ID < 50500
+extern bool throw_bounds_warning(THD *thd, bool fixed, bool unsignd,
+  const char *name, long long val);
+#else
+extern bool throw_bounds_warning(THD *thd, const char *name, bool fixed,
+  bool is_unsignd, longlong v);
+#endif
+
+static my_bool spider_support_xa;
+static MYSQL_SYSVAR_BOOL(
+  support_xa,
+  spider_support_xa,
+  PLUGIN_VAR_OPCMDARG | PLUGIN_VAR_READONLY,
+  "XA support",
+  NULL,
+  NULL,
+  TRUE
+);
+
+my_bool spider_param_support_xa()
+{
+  DBUG_ENTER("spider_param_support_xa");
+  DBUG_RETURN(spider_support_xa);
+}
+
+static my_bool spider_connect_mutex;
+static MYSQL_SYSVAR_BOOL(
+  connect_mutex,
+  spider_connect_mutex,
+  PLUGIN_VAR_OPCMDARG,
+  "Use mutex at connecting",
+  NULL,
+  NULL,
+  FALSE
+);
+
+my_bool spider_param_connect_mutex()
+{
+  DBUG_ENTER("spider_param_connect_mutex");
+  DBUG_RETURN(spider_connect_mutex);
+}
+
+static uint spider_connect_error_interval;
+/*
+  0-: interval
+ */
+static MYSQL_SYSVAR_UINT(
+  connect_error_interval,
+  spider_connect_error_interval,
+  PLUGIN_VAR_RQCMDARG,
+  "Return same error code until interval passes if connection is failed",
+  NULL,
+  NULL,
+  1,
+  0,
+  4294967295U,
+  0
+);
+
+uint spider_param_connect_error_interval()
+{
+  DBUG_ENTER("spider_param_connect_error_interval");
+  DBUG_RETURN(spider_connect_error_interval);
+}
+
+static uint spider_table_init_error_interval;
+/*
+  0-: interval
+ */
+static MYSQL_SYSVAR_UINT(
+  table_init_error_interval,
+  spider_table_init_error_interval,
+  PLUGIN_VAR_RQCMDARG,
+  "Return same error code until interval passes if table init is failed",
+  NULL,
+  NULL,
+  1,
+  0,
+  4294967295U,
+  0
+);
+
+uint spider_param_table_init_error_interval()
+{
+  DBUG_ENTER("spider_param_table_init_error_interval");
+  DBUG_RETURN(spider_table_init_error_interval);
+}
+
+static int spider_use_table_charset;
+/*
+ -1 :use table parameter
+  0 :use utf8
+  1 :use table charset
+ */
+static MYSQL_SYSVAR_INT(
+  use_table_charset,
+  spider_use_table_charset,
+  PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
+  "Use table charset for remote access",
+  NULL,
+  NULL,
+  -1,
+  -1,
+  1,
+  0
+);
+
+int spider_param_use_table_charset(
+  int use_table_charset
+) {
+  DBUG_ENTER("spider_param_use_table_charset");
+  DBUG_RETURN(spider_use_table_charset == -1 ?
+    use_table_charset : spider_use_table_charset);
+}
+
+/*
+  0: no recycle
+  1: recycle in instance
+  2: recycle in thread
+ */
+static MYSQL_THDVAR_UINT(
+  conn_recycle_mode, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Connection recycle mode", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  0, /* def */
+  0, /* min */
+  2, /* max */
+  0 /* blk */
+);
+
+uint spider_param_conn_recycle_mode(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_conn_recycle_mode");
+  DBUG_RETURN(THDVAR(thd, conn_recycle_mode));
+}
+
+/*
+  0: weak
+  1: strict
+ */
+static MYSQL_THDVAR_UINT(
+  conn_recycle_strict, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Strict connection recycle", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  0, /* def */
+  0, /* min */
+  1, /* max */
+  0 /* blk */
+);
+
+uint spider_param_conn_recycle_strict(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_conn_recycle_strict");
+  DBUG_RETURN(THDVAR(thd, conn_recycle_strict));
+}
+
+/*
+  FALSE: no sync
+  TRUE:  sync
+ */
+static MYSQL_THDVAR_BOOL(
+  sync_trx_isolation, /* name */
+  PLUGIN_VAR_OPCMDARG, /* opt */
+  "Sync transaction isolation level", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  TRUE /* def */
+);
+
+bool spider_param_sync_trx_isolation(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_sync_trx_isolation");
+  DBUG_RETURN(THDVAR(thd, sync_trx_isolation));
+}
+
+/*
+  FALSE: no use
+  TRUE:  use
+ */
+static MYSQL_THDVAR_BOOL(
+  use_consistent_snapshot, /* name */
+  PLUGIN_VAR_OPCMDARG, /* opt */
+  "Use start transaction with consistent snapshot", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  FALSE /* def */
+);
+
+bool spider_param_use_consistent_snapshot(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_use_consistent_snapshot");
+  DBUG_RETURN(THDVAR(thd, use_consistent_snapshot));
+}
+
+/*
+  FALSE: off
+  TRUE:  on
+ */
+static MYSQL_THDVAR_BOOL(
+  internal_xa, /* name */
+  PLUGIN_VAR_OPCMDARG, /* opt */
+  "Use inner xa transaction", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  FALSE /* def */
+);
+
+bool spider_param_internal_xa(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_internal_xa");
+  DBUG_RETURN(THDVAR(thd, internal_xa));
+}
+
+/*
+  0 :err when use a spider table
+  1 :err when start trx
+  2 :start trx with snapshot on remote server(not use xa)
+  3 :start xa on remote server(not use trx with snapshot)
+ */
+static MYSQL_THDVAR_UINT(
+  internal_xa_snapshot, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Action of inner xa and snapshot both using", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  0, /* def */
+  0, /* min */
+  3, /* max */
+  0 /* blk */
+);
+
+uint spider_param_internal_xa_snapshot(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_internal_xa_snapshot");
+  DBUG_RETURN(THDVAR(thd, internal_xa_snapshot));
+}
+
+/*
+  0 :off
+  1 :continue prepare, commit, rollback if xid not found return
+  2 :continue prepare, commit, rollback if all error return
+ */
+static MYSQL_THDVAR_UINT(
+  force_commit, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Force prepare, commit, rollback mode", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  1, /* def */
+  0, /* min */
+  2, /* max */
+  0 /* blk */
+);
+
+uint spider_param_force_commit(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_force_commit");
+  DBUG_RETURN(THDVAR(thd, force_commit));
+}
+
+/*
+  0: register all XA transaction
+  1: register only write XA transaction
+ */
+static MYSQL_THDVAR_UINT(
+  xa_register_mode, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Mode of XA transaction register into system table", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  1, /* def */
+  0, /* min */
+  1, /* max */
+  0 /* blk */
+);
+
+uint spider_param_xa_register_mode(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_xa_register_mode");
+  DBUG_RETURN(THDVAR(thd, xa_register_mode));
+}
+
+/*
+ -1 :use table parameter
+  0-:offset
+ */
+static MYSQL_THDVAR_LONGLONG(
+  internal_offset, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Internal offset", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  9223372036854775807LL, /* max */
+  0 /* blk */
+);
+
+longlong spider_param_internal_offset(
+  THD *thd,
+  longlong internal_offset
+) {
+  DBUG_ENTER("spider_param_internal_offset");
+  DBUG_RETURN(THDVAR(thd, internal_offset) < 0 ?
+    internal_offset : THDVAR(thd, internal_offset));
+}
+
+/*
+ -1 :use table parameter
+  0-:limit
+ */
+static MYSQL_THDVAR_LONGLONG(
+  internal_limit, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Internal limit", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  9223372036854775807LL, /* max */
+  0 /* blk */
+);
+
+longlong spider_param_internal_limit(
+  THD *thd,
+  longlong internal_limit
+) {
+  DBUG_ENTER("spider_param_internal_limit");
+  DBUG_RETURN(THDVAR(thd, internal_limit) < 0 ?
+    internal_limit : THDVAR(thd, internal_limit));
+}
+
+/*
+ -1 :use table parameter
+  0-:number of rows at a select
+ */
+static MYSQL_THDVAR_LONGLONG(
+  split_read, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Number of rows at a select", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  9223372036854775807LL, /* max */
+  0 /* blk */
+);
+
+longlong spider_param_split_read(
+  THD *thd,
+  longlong split_read
+) {
+  DBUG_ENTER("spider_param_split_read");
+  DBUG_RETURN(THDVAR(thd, split_read) < 0 ?
+    split_read : THDVAR(thd, split_read));
+}
+
+/*
+  -1 :use table parameter
+   0 :doesn't use "offset" and "limit" for "split_read"
+   1-:magnification
+ */
+static MYSQL_THDVAR_INT(
+  semi_split_read, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Use offset and limit parameter in SQL for split_read parameter.", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  2147483647, /* max */
+  0 /* blk */
+);
+
+double spider_param_semi_split_read(
+  THD *thd,
+  double semi_split_read
+) {
+  DBUG_ENTER("spider_param_semi_split_read");
+  DBUG_RETURN(THDVAR(thd, semi_split_read) < 0 ?
+    semi_split_read : THDVAR(thd, semi_split_read));
+}
+
+/*
+ -1 :use table parameter
+  0-:the limit value
+ */
+static MYSQL_THDVAR_LONGLONG(
+  semi_split_read_limit, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "The limit value for semi_split_read", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  9223372036854775807LL, /* max */
+  0 /* blk */
+);
+
+longlong spider_param_semi_split_read_limit(
+  THD *thd,
+  longlong semi_split_read_limit
+) {
+  DBUG_ENTER("spider_param_semi_split_read_limit");
+  DBUG_RETURN(THDVAR(thd, semi_split_read_limit) < 0 ?
+    semi_split_read_limit : THDVAR(thd, semi_split_read_limit));
+}
+
+/*
+ -1 :use table parameter
+  0 :no alloc
+  1-:alloc size
+ */
+static MYSQL_THDVAR_INT(
+  init_sql_alloc_size, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Initial sql string alloc size", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  2147483647, /* max */
+  0 /* blk */
+);
+
+int spider_param_init_sql_alloc_size(
+  THD *thd,
+  int init_sql_alloc_size
+) {
+  DBUG_ENTER("spider_param_init_sql_alloc_size");
+  DBUG_RETURN(THDVAR(thd, init_sql_alloc_size) < 0 ?
+    init_sql_alloc_size : THDVAR(thd, init_sql_alloc_size));
+}
+
+/*
+ -1 :use table parameter
+  0 :off
+  1 :on
+ */
+static MYSQL_THDVAR_INT(
+  reset_sql_alloc, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Reset sql string alloc after execute", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  1, /* max */
+  0 /* blk */
+);
+
+int spider_param_reset_sql_alloc(
+  THD *thd,
+  int reset_sql_alloc
+) {
+  DBUG_ENTER("spider_param_reset_sql_alloc");
+  DBUG_RETURN(THDVAR(thd, reset_sql_alloc) < 0 ?
+    reset_sql_alloc : THDVAR(thd, reset_sql_alloc));
+}
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+/*
+ -1 :use table parameter
+  0-:result free size for handlersocket
+ */
+static MYSQL_THDVAR_LONGLONG(
+  hs_result_free_size, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Result free size for handlersocket", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  9223372036854775807LL, /* max */
+  0 /* blk */
+);
+
+longlong spider_param_hs_result_free_size(
+  THD *thd,
+  longlong hs_result_free_size
+) {
+  DBUG_ENTER("spider_param_hs_result_free_size");
+  DBUG_RETURN(THDVAR(thd, hs_result_free_size) < 0 ?
+    hs_result_free_size : THDVAR(thd, hs_result_free_size));
+}
+#endif
+
+/*
+ -1 :use table parameter
+  0 :off
+  1 :on
+ */
+static MYSQL_THDVAR_INT(
+  multi_split_read, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Sprit read mode for multi range", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  2147483647, /* max */
+  0 /* blk */
+);
+
+int spider_param_multi_split_read(
+  THD *thd,
+  int multi_split_read
+) {
+  DBUG_ENTER("spider_param_multi_split_read");
+  DBUG_RETURN(THDVAR(thd, multi_split_read) < 0 ?
+    multi_split_read : THDVAR(thd, multi_split_read));
+}
+
+/*
+ -1 :use table parameter
+  0-:max order columns
+ */
+static MYSQL_THDVAR_INT(
+  max_order, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Max columns for order by", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  32767, /* max */
+  0 /* blk */
+);
+
+int spider_param_max_order(
+  THD *thd,
+  int max_order
+) {
+  DBUG_ENTER("spider_param_max_order");
+  DBUG_RETURN(THDVAR(thd, max_order) < 0 ?
+    max_order : THDVAR(thd, max_order));
+}
+
+/*
+ -1 :off
+  0 :read uncommitted
+  1 :read committed
+  2 :repeatable read
+  3 :serializable
+ */
+static MYSQL_THDVAR_INT(
+  semi_trx_isolation, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Transaction isolation level during execute a sql", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  3, /* max */
+  0 /* blk */
+);
+
+int spider_param_semi_trx_isolation(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_semi_trx_isolation");
+  DBUG_RETURN(THDVAR(thd, semi_trx_isolation));
+}
+
+static int spider_param_semi_table_lock_check(
+  MYSQL_THD thd,
+  struct st_mysql_sys_var *var,
+  void *save,
+  struct st_mysql_value *value
+) {
+  int error_num;
+  SPIDER_TRX *trx;
+  my_bool fixed;
+  long long tmp;
+  struct my_option options;
+  DBUG_ENTER("spider_param_semi_table_lock_check");
+  if (!(trx = spider_get_trx((THD *) thd, TRUE, &error_num)))
+    DBUG_RETURN(error_num);
+  if (trx->locked_connections)
+  {
+    my_message(ER_SPIDER_ALTER_BEFORE_UNLOCK_NUM,
+      ER_SPIDER_ALTER_BEFORE_UNLOCK_STR, MYF(0));
+    DBUG_RETURN(ER_SPIDER_ALTER_BEFORE_UNLOCK_NUM);
+  }
+  value->val_int(value, &tmp);
+  options.sub_size = 0;
+  options.var_type = GET_INT;
+  options.def_value = ((MYSQL_SYSVAR_NAME(thdvar_int_t) *) var)->def_val;
+  options.min_value = ((MYSQL_SYSVAR_NAME(thdvar_int_t) *) var)->min_val;
+  options.max_value = ((MYSQL_SYSVAR_NAME(thdvar_int_t) *) var)->max_val;
+  options.block_size =
+    (long) ((MYSQL_SYSVAR_NAME(thdvar_int_t) *) var)->blk_sz;
+  options.arg_type = REQUIRED_ARG;
+  *((int *) save) = (int) getopt_ll_limit_value(tmp, &options, &fixed);
+#if MYSQL_VERSION_ID < 50500
+  DBUG_RETURN(throw_bounds_warning(thd, fixed, FALSE,
+    ((MYSQL_SYSVAR_NAME(thdvar_int_t) *) var)->name, (long long) tmp));
+#else
+  DBUG_RETURN(throw_bounds_warning(thd,
+    ((MYSQL_SYSVAR_NAME(thdvar_int_t) *) var)->name, fixed, FALSE,
+    (longlong) tmp));
+#endif
+}
+
+/*
+  0 :off
+  1 :on
+ */
+static MYSQL_THDVAR_INT(
+  semi_table_lock, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Table lock during execute a sql", /* comment */
+  &spider_param_semi_table_lock_check, /* check */
+  NULL, /* update */
+  1, /* def */
+  0, /* min */
+  1, /* max */
+  0 /* blk */
+);
+
+int spider_param_semi_table_lock(
+  THD *thd,
+  int semi_table_lock
+) {
+  DBUG_ENTER("spider_param_semi_table_lock");
+  DBUG_RETURN((semi_table_lock & THDVAR(thd, semi_table_lock)));
+}
+
+static int spider_param_semi_table_lock_connection_check(
+  MYSQL_THD thd,
+  struct st_mysql_sys_var *var,
+  void *save,
+  struct st_mysql_value *value
+) {
+  int error_num;
+  SPIDER_TRX *trx;
+  my_bool fixed;
+  long long tmp;
+  struct my_option options;
+  DBUG_ENTER("spider_param_semi_table_lock_connection_check");
+  if (!(trx = spider_get_trx((THD *) thd, TRUE, &error_num)))
+    DBUG_RETURN(error_num);
+  if (trx->locked_connections)
+  {
+    my_message(ER_SPIDER_ALTER_BEFORE_UNLOCK_NUM,
+      ER_SPIDER_ALTER_BEFORE_UNLOCK_STR, MYF(0));
+    DBUG_RETURN(ER_SPIDER_ALTER_BEFORE_UNLOCK_NUM);
+  }
+  value->val_int(value, &tmp);
+  options.sub_size = 0;
+  options.var_type = GET_INT;
+  options.def_value = ((MYSQL_SYSVAR_NAME(thdvar_int_t) *) var)->def_val;
+  options.min_value = ((MYSQL_SYSVAR_NAME(thdvar_int_t) *) var)->min_val;
+  options.max_value = ((MYSQL_SYSVAR_NAME(thdvar_int_t) *) var)->max_val;
+  options.block_size =
+    (long) ((MYSQL_SYSVAR_NAME(thdvar_int_t) *) var)->blk_sz;
+  options.arg_type = REQUIRED_ARG;
+  *((int *) save) = (int) getopt_ll_limit_value(tmp, &options, &fixed);
+#if MYSQL_VERSION_ID < 50500
+  DBUG_RETURN(throw_bounds_warning(thd, fixed, FALSE,
+    ((MYSQL_SYSVAR_NAME(thdvar_int_t) *) var)->name, (long long) tmp));
+#else
+  DBUG_RETURN(throw_bounds_warning(thd,
+    ((MYSQL_SYSVAR_NAME(thdvar_int_t) *) var)->name, fixed, FALSE,
+    (longlong) tmp));
+#endif
+}
+
+/*
+ -1 :off
+  0 :use same connection
+  1 :use different connection
+ */
+static MYSQL_THDVAR_INT(
+  semi_table_lock_connection, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Use different connection if semi_table_lock is enabled", /* comment */
+  &spider_param_semi_table_lock_connection_check, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  1, /* max */
+  0 /* blk */
+);
+
+int spider_param_semi_table_lock_connection(
+  THD *thd,
+  int semi_table_lock_connection
+) {
+  DBUG_ENTER("spider_param_semi_table_lock_connection");
+  DBUG_RETURN(THDVAR(thd, semi_table_lock_connection) == -1 ?
+    semi_table_lock_connection : THDVAR(thd, semi_table_lock_connection));
+}
+
+/*
+  0-:block_size
+ */
+static MYSQL_THDVAR_UINT(
+  block_size, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Index block size", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  16384, /* def */
+  0, /* min */
+  4294967295U, /* max */
+  0 /* blk */
+);
+
+uint spider_param_block_size(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_block_size");
+  DBUG_RETURN(THDVAR(thd, block_size));
+}
+
+/*
+ -1 :use table parameter
+  0 :off
+  1 :lock in share mode
+  2 :for update
+ */
+static MYSQL_THDVAR_INT(
+  selupd_lock_mode, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Lock for select with update", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  2, /* max */
+  0 /* blk */
+);
+
+int spider_param_selupd_lock_mode(
+  THD *thd,
+  int selupd_lock_mode
+) {
+  DBUG_ENTER("spider_param_selupd_lock_mode");
+  DBUG_RETURN(THDVAR(thd, selupd_lock_mode) == -1 ?
+    selupd_lock_mode : THDVAR(thd, selupd_lock_mode));
+}
+
+/*
+  FALSE: no sync
+  TRUE:  sync
+ */
+static MYSQL_THDVAR_BOOL(
+  sync_autocommit, /* name */
+  PLUGIN_VAR_OPCMDARG, /* opt */
+  "Sync autocommit", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  TRUE /* def */
+);
+
+bool spider_param_sync_autocommit(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_sync_autocommit");
+  DBUG_RETURN(THDVAR(thd, sync_autocommit));
+}
+
+/*
+  FALSE: not use
+  TRUE:  use
+ */
+static MYSQL_THDVAR_BOOL(
+  use_default_database, /* name */
+  PLUGIN_VAR_OPCMDARG, /* opt */
+  "Use default database", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  TRUE /* def */
+);
+
+bool spider_param_use_default_database(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_use_default_database");
+  DBUG_RETURN(THDVAR(thd, use_default_database));
+}
+
+/*
+-1 :don't know or does not matter; don't send 'SET SQL_LOG_OFF' statement
+ 0 :do send 'SET SQL_LOG_OFF 0' statement to data nodes
+ 1 :do send 'SET SQL_LOG_OFF 1' statement to data nodes
+*/
+static MYSQL_THDVAR_INT(
+  internal_sql_log_off,                                  /* name */
+  PLUGIN_VAR_RQCMDARG,                                   /* opt */
+  "Manage SQL_LOG_OFF mode statement to the data nodes", /* comment */
+  NULL,                                                  /* check */
+  NULL,                                                  /* update */
+  -1,                                                    /* default */
+  -1,                                                    /* min */
+  1,                                                     /* max */
+  0                                                      /* blk */
+);
+
+int spider_param_internal_sql_log_off(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_internal_sql_log_off");
+  DBUG_RETURN(THDVAR(thd, internal_sql_log_off));
+}
+
+/*
+ -1 :use table parameter
+  0-:bulk insert size
+ */
+static MYSQL_THDVAR_INT(
+  bulk_size, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Bulk insert size", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  2147483647, /* max */
+  0 /* blk */
+);
+
+int spider_param_bulk_size(
+  THD *thd,
+  int bulk_size
+) {
+  DBUG_ENTER("spider_param_bulk_size");
+  DBUG_RETURN(THDVAR(thd, bulk_size) < 0 ?
+    bulk_size : THDVAR(thd, bulk_size));
+}
+
+/*
+ -1 :use table parameter
+  0 : Send "update" and "delete" statements one by one.
+  1 : Send collected multiple "update" and "delete" statements.
+      (Collected statements are sent one by one)
+  2 : Send collected multiple "update" and "delete" statements.
+      (Collected statements are sent together)
+ */
+static MYSQL_THDVAR_INT(
+  bulk_update_mode, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "The mode of bulk updating and deleting", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  2, /* max */
+  0 /* blk */
+);
+
+int spider_param_bulk_update_mode(
+  THD *thd,
+  int bulk_update_mode
+) {
+  DBUG_ENTER("spider_param_bulk_update_mode");
+  DBUG_RETURN(THDVAR(thd, bulk_update_mode) == -1 ?
+    bulk_update_mode : THDVAR(thd, bulk_update_mode));
+}
+
+/*
+ -1 :use table parameter
+  0-:bulk update size
+ */
+static MYSQL_THDVAR_INT(
+  bulk_update_size, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Bulk update size", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  2147483647, /* max */
+  0 /* blk */
+);
+
+int spider_param_bulk_update_size(
+  THD *thd,
+  int bulk_update_size
+) {
+  DBUG_ENTER("spider_param_bulk_update_size");
+  DBUG_RETURN(THDVAR(thd, bulk_update_size) == -1 ?
+    bulk_update_size : THDVAR(thd, bulk_update_size));
+}
+
+/*
+ -1 :use table parameter
+  0-:buffer size
+ */
+static MYSQL_THDVAR_INT(
+  buffer_size, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Buffer size", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  2147483647, /* max */
+  0 /* blk */
+);
+
+int spider_param_buffer_size(
+  THD *thd,
+  int buffer_size
+) {
+  DBUG_ENTER("spider_param_buffer_size");
+  DBUG_RETURN(THDVAR(thd, buffer_size) == -1 ?
+    buffer_size : THDVAR(thd, buffer_size));
+}
+
+/*
+ -1 :use table parameter
+  0 :off
+  1 :on
+ */
+static MYSQL_THDVAR_INT(
+  internal_optimize, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Execute optimize to remote server", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  1, /* max */
+  0 /* blk */
+);
+
+int spider_param_internal_optimize(
+  THD *thd,
+  int internal_optimize
+) {
+  DBUG_ENTER("spider_param_internal_optimize");
+  DBUG_RETURN(THDVAR(thd, internal_optimize) == -1 ?
+    internal_optimize : THDVAR(thd, internal_optimize));
+}
+
+/*
+ -1 :use table parameter
+  0 :off
+  1 :on
+ */
+static MYSQL_THDVAR_INT(
+  internal_optimize_local, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Execute optimize to remote server with local", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  1, /* max */
+  0 /* blk */
+);
+
+int spider_param_internal_optimize_local(
+  THD *thd,
+  int internal_optimize_local
+) {
+  DBUG_ENTER("spider_param_internal_optimize_local");
+  DBUG_RETURN(THDVAR(thd, internal_optimize_local) == -1 ?
+    internal_optimize_local : THDVAR(thd, internal_optimize_local));
+}
+
+/*
+  FALSE: off
+  TRUE:  on
+ */
+static MYSQL_THDVAR_BOOL(
+  use_flash_logs, /* name */
+  PLUGIN_VAR_OPCMDARG, /* opt */
+  "Execute flush logs to remote server", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  FALSE /* def */
+);
+
+bool spider_param_use_flash_logs(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_use_flash_logs");
+  DBUG_RETURN(THDVAR(thd, use_flash_logs));
+}
+
+/*
+  0 :off
+  1 :flush tables with read lock
+  2 :flush tables another connection
+ */
+static MYSQL_THDVAR_INT(
+  use_snapshot_with_flush_tables, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Execute optimize to remote server with local", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  0, /* def */
+  0, /* min */
+  2, /* max */
+  0 /* blk */
+);
+
+int spider_param_use_snapshot_with_flush_tables(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_use_snapshot_with_flush_tables");
+  DBUG_RETURN(THDVAR(thd, use_snapshot_with_flush_tables));
+}
+
+/*
+  FALSE: off
+  TRUE:  on
+ */
+static MYSQL_THDVAR_BOOL(
+  use_all_conns_snapshot, /* name */
+  PLUGIN_VAR_OPCMDARG, /* opt */
+  "When start trx with snapshot, it send to all connections", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  FALSE /* def */
+);
+
+bool spider_param_use_all_conns_snapshot(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_use_all_conns_snapshot");
+  DBUG_RETURN(THDVAR(thd, use_all_conns_snapshot));
+}
+
+/*
+  FALSE: off
+  TRUE:  on
+ */
+static MYSQL_THDVAR_BOOL(
+  lock_exchange, /* name */
+  PLUGIN_VAR_OPCMDARG, /* opt */
+  "Exchange select lock to lock tables", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  FALSE /* def */
+);
+
+bool spider_param_lock_exchange(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_lock_exchange");
+  DBUG_RETURN(THDVAR(thd, lock_exchange));
+}
+
+/*
+  FALSE: off
+  TRUE:  on
+ */
+static MYSQL_THDVAR_BOOL(
+  internal_unlock, /* name */
+  PLUGIN_VAR_OPCMDARG, /* opt */
+  "Unlock tables for using connections in sql", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  FALSE /* def */
+);
+
+bool spider_param_internal_unlock(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_internal_unlock");
+  DBUG_RETURN(THDVAR(thd, internal_unlock));
+}
+
+/*
+  FALSE: off
+  TRUE:  on
+ */
+static MYSQL_THDVAR_BOOL(
+  semi_trx, /* name */
+  PLUGIN_VAR_OPCMDARG, /* opt */
+  "Take a transaction during execute a sql", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  TRUE /* def */
+);
+
+bool spider_param_semi_trx(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_semi_trx");
+  DBUG_RETURN(THDVAR(thd, semi_trx));
+}
+
+/*
+ -1 :use table parameter
+  0-:seconds of timeout
+ */
+static MYSQL_THDVAR_INT(
+  connect_timeout, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Wait timeout of connecting to remote server", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  2147483647, /* max */
+  0 /* blk */
+);
+
+int spider_param_connect_timeout(
+  THD *thd,
+  int connect_timeout
+) {
+  DBUG_ENTER("spider_param_connect_timeout");
+  if (thd)
+    DBUG_RETURN(THDVAR(thd, connect_timeout) == -1 ?
+      connect_timeout : THDVAR(thd, connect_timeout));
+  DBUG_RETURN(connect_timeout);
+}
+
+/*
+ -1 :use table parameter
+  0-:seconds of timeout
+ */
+static MYSQL_THDVAR_INT(
+  net_read_timeout, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Wait timeout of receiving data from remote server", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  2147483647, /* max */
+  0 /* blk */
+);
+
+int spider_param_net_read_timeout(
+  THD *thd,
+  int net_read_timeout
+) {
+  DBUG_ENTER("spider_param_net_read_timeout");
+  if (thd)
+    DBUG_RETURN(THDVAR(thd, net_read_timeout) == -1 ?
+      net_read_timeout : THDVAR(thd, net_read_timeout));
+  DBUG_RETURN(net_read_timeout);
+}
+
+/*
+ -1 :use table parameter
+  0-:seconds of timeout
+ */
+static MYSQL_THDVAR_INT(
+  net_write_timeout, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Wait timeout of sending data to remote server", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  2147483647, /* max */
+  0 /* blk */
+);
+
+int spider_param_net_write_timeout(
+  THD *thd,
+  int net_write_timeout
+) {
+  DBUG_ENTER("spider_param_net_write_timeout");
+  if (thd)
+    DBUG_RETURN(THDVAR(thd, net_write_timeout) == -1 ?
+      net_write_timeout : THDVAR(thd, net_write_timeout));
+  DBUG_RETURN(net_write_timeout);
+}
+
+/*
+ -1 :use table parameter
+  0 :It acquires it collectively.
+  1 :Acquisition one by one.If it discontinues once, and it will need
+     it later, it retrieves it again when there is interrupt on the way.
+  2 :Acquisition one by one.Interrupt is waited for until end of getting
+     result when there is interrupt on the way.
+ */
+static MYSQL_THDVAR_INT(
+  quick_mode, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "The retrieval result from a remote server is acquired by acquisition one by one", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  3, /* max */
+  0 /* blk */
+);
+
+int spider_param_quick_mode(
+  THD *thd,
+  int quick_mode
+) {
+  DBUG_ENTER("spider_param_quick_mode");
+  DBUG_RETURN(THDVAR(thd, quick_mode) < 0 ?
+    quick_mode : THDVAR(thd, quick_mode));
+}
+
+/*
+ -1 :use table parameter
+  0-:number of records
+ */
+static MYSQL_THDVAR_LONGLONG(
+  quick_page_size, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Number of records in a page when acquisition one by one", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  9223372036854775807LL, /* max */
+  0 /* blk */
+);
+
+longlong spider_param_quick_page_size(
+  THD *thd,
+  longlong quick_page_size
+) {
+  DBUG_ENTER("spider_param_quick_page_size");
+  DBUG_RETURN(THDVAR(thd, quick_page_size) < 0 ?
+    quick_page_size : THDVAR(thd, quick_page_size));
+}
+
+/*
+ -1 :use table parameter
+  0-:the limitation of memory size
+ */
+static MYSQL_THDVAR_LONGLONG(
+  quick_page_byte, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "The limitation of memory size in a page when acquisition one by one", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  9223372036854775807LL, /* max */
+  0 /* blk */
+);
+
+longlong spider_param_quick_page_byte(
+  THD *thd,
+  longlong quick_page_byte
+) {
+  DBUG_ENTER("spider_param_quick_page_byte");
+  DBUG_RETURN(THDVAR(thd, quick_page_byte) < 0 ?
+    quick_page_byte : THDVAR(thd, quick_page_byte));
+}
+
+/*
+ -1 :use table parameter
+  0 :It doesn't use low memory mode.
+  1 :It uses low memory mode.
+ */
+static MYSQL_THDVAR_INT(
+  low_mem_read, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Use low memory mode when SQL(SELECT) internally issued to a remote server is executed and get a result list", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  1, /* max */
+  0 /* blk */
+);
+
+int spider_param_low_mem_read(
+  THD *thd,
+  int low_mem_read
+) {
+  DBUG_ENTER("spider_param_low_mem_read");
+  DBUG_RETURN(THDVAR(thd, low_mem_read) < 0 ?
+    low_mem_read : THDVAR(thd, low_mem_read));
+}
+
+/*
+ -1 :use table parameter
+  0 :Use index columns if select statement can solve by using index,
+     otherwise use all columns.
+  1 :Use columns that are judged necessary.
+ */
+static MYSQL_THDVAR_INT(
+  select_column_mode, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "The mode of using columns at select clause", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  1, /* max */
+  0 /* blk */
+);
+
+int spider_param_select_column_mode(
+  THD *thd,
+  int select_column_mode
+) {
+  DBUG_ENTER("spider_param_select_column_mode");
+  DBUG_RETURN(THDVAR(thd, select_column_mode) == -1 ?
+    select_column_mode : THDVAR(thd, select_column_mode));
+}
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+/*
+ -1 :use table parameter
+  0 :background search is disabled
+  1 :background search is used if search with no lock
+  2 :background search is used if search with no lock or shared lock
+  3 :background search is used regardless of the lock
+ */
+static MYSQL_THDVAR_INT(
+  bgs_mode, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Mode of background search", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  3, /* max */
+  0 /* blk */
+);
+
+int spider_param_bgs_mode(
+  THD *thd,
+  int bgs_mode
+) {
+  DBUG_ENTER("spider_param_bgs_mode");
+  DBUG_RETURN(THDVAR(thd, bgs_mode) < 0 ?
+    bgs_mode : THDVAR(thd, bgs_mode));
+}
+
+/*
+ -1 :use table parameter
+  0 :records is gotten usually
+  1-:number of records
+ */
+static MYSQL_THDVAR_LONGLONG(
+  bgs_first_read, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Number of first read records when background search is used", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  9223372036854775807LL, /* max */
+  0 /* blk */
+);
+
+longlong spider_param_bgs_first_read(
+  THD *thd,
+  longlong bgs_first_read
+) {
+  DBUG_ENTER("spider_param_bgs_first_read");
+  DBUG_RETURN(THDVAR(thd, bgs_first_read) < 0 ?
+    bgs_first_read : THDVAR(thd, bgs_first_read));
+}
+
+/*
+ -1 :use table parameter
+  0 :records is gotten usually
+  1-:number of records
+ */
+static MYSQL_THDVAR_LONGLONG(
+  bgs_second_read, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Number of second read records when background search is used", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  9223372036854775807LL, /* max */
+  0 /* blk */
+);
+
+longlong spider_param_bgs_second_read(
+  THD *thd,
+  longlong bgs_second_read
+) {
+  DBUG_ENTER("spider_param_bgs_second_read");
+  DBUG_RETURN(THDVAR(thd, bgs_second_read) < 0 ?
+    bgs_second_read : THDVAR(thd, bgs_second_read));
+}
+#endif
+
+/*
+ -1 :use table parameter
+  0 :records is gotten usually
+  1-:number of records
+ */
+static MYSQL_THDVAR_LONGLONG(
+  first_read, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Number of first read records", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  9223372036854775807LL, /* max */
+  0 /* blk */
+);
+
+longlong spider_param_first_read(
+  THD *thd,
+  longlong first_read
+) {
+  DBUG_ENTER("spider_param_first_read");
+  DBUG_RETURN(THDVAR(thd, first_read) < 0 ?
+    first_read : THDVAR(thd, first_read));
+}
+
+/*
+ -1 :use table parameter
+  0 :records is gotten usually
+  1-:number of records
+ */
+static MYSQL_THDVAR_LONGLONG(
+  second_read, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Number of second read records", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  9223372036854775807LL, /* max */
+  0 /* blk */
+);
+
+longlong spider_param_second_read(
+  THD *thd,
+  longlong second_read
+) {
+  DBUG_ENTER("spider_param_second_read");
+  DBUG_RETURN(THDVAR(thd, second_read) < 0 ?
+    second_read : THDVAR(thd, second_read));
+}
+
+/*
+ -1 :use table parameter
+  0 :always get the newest information
+  1-:interval
+ */
+static MYSQL_THDVAR_INT(
+  crd_interval, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Interval of cardinality confirmation.(second)", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  2147483647, /* max */
+  0 /* blk */
+);
+
+double spider_param_crd_interval(
+  THD *thd,
+  double crd_interval
+) {
+  DBUG_ENTER("spider_param_crd_interval");
+  DBUG_RETURN(THDVAR(thd, crd_interval) == -1 ?
+    crd_interval : THDVAR(thd, crd_interval));
+}
+
+/*
+ -1 :use table parameter
+  0 :use table parameter
+  1 :use show command
+  2 :use information schema
+  3 :use explain
+ */
+static MYSQL_THDVAR_INT(
+  crd_mode, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Mode of cardinality confirmation.", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  3, /* max */
+  0 /* blk */
+);
+
+int spider_param_crd_mode(
+  THD *thd,
+  int crd_mode
+) {
+  DBUG_ENTER("spider_param_crd_mode");
+  DBUG_RETURN(THDVAR(thd, crd_mode) <= 0 ?
+    crd_mode : THDVAR(thd, crd_mode));
+}
+
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+/*
+ -1 :use table parameter
+  0 :No synchronization.
+  1 :Cardinality is synchronized when opening a table.
+     Then no synchronization.
+  2 :Synchronization.
+ */
+static MYSQL_THDVAR_INT(
+  crd_sync, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Cardinality synchronization in partitioned table.", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  2, /* max */
+  0 /* blk */
+);
+
+int spider_param_crd_sync(
+  THD *thd,
+  int crd_sync
+) {
+  DBUG_ENTER("spider_param_crd_sync");
+  DBUG_RETURN(THDVAR(thd, crd_sync) == -1 ?
+    crd_sync : THDVAR(thd, crd_sync));
+}
+#endif
+
+/*
+ -1 :use table parameter
+  0 :The crd_weight is used as a fixed value.
+  1 :The crd_weight is used as an addition value.
+  2 :The crd_weight is used as a multiplication value.
+ */
+static MYSQL_THDVAR_INT(
+  crd_type, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Type of cardinality calculation.", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  2, /* max */
+  0 /* blk */
+);
+
+int spider_param_crd_type(
+  THD *thd,
+  int crd_type
+) {
+  DBUG_ENTER("spider_param_crd_type");
+  DBUG_RETURN(THDVAR(thd, crd_type) == -1 ?
+    crd_type : THDVAR(thd, crd_type));
+}
+
+/*
+ -1 :use table parameter
+  0-:weight
+ */
+static MYSQL_THDVAR_INT(
+  crd_weight, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Weight coefficient to calculate effectiveness of index from cardinality of column.", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  2147483647, /* max */
+  0 /* blk */
+);
+
+double spider_param_crd_weight(
+  THD *thd,
+  double crd_weight
+) {
+  DBUG_ENTER("spider_param_crd_weight");
+  DBUG_RETURN(THDVAR(thd, crd_weight) == -1 ?
+    crd_weight : THDVAR(thd, crd_weight));
+}
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+/*
+ -1 :use table parameter
+  0 :Background confirmation is disabled
+  1 :Background confirmation is enabled (create thread per table/partition)
+  2 :Background confirmation is enabled (use static threads)
+ */
+static MYSQL_THDVAR_INT(
+  crd_bg_mode, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Mode of cardinality confirmation at background.", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  2, /* max */
+  0 /* blk */
+);
+
+int spider_param_crd_bg_mode(
+  THD *thd,
+  int crd_bg_mode
+) {
+  DBUG_ENTER("spider_param_crd_bg_mode");
+  DBUG_RETURN(THDVAR(thd, crd_bg_mode) == -1 ?
+    crd_bg_mode : THDVAR(thd, crd_bg_mode));
+}
+#endif
+
+/*
+ -1 :use table parameter
+  0 :always get the newest information
+  1-:interval
+ */
+static MYSQL_THDVAR_INT(
+  sts_interval, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Interval of table state confirmation.(second)", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  2147483647, /* max */
+  0 /* blk */
+);
+
+double spider_param_sts_interval(
+  THD *thd,
+  double sts_interval
+) {
+  DBUG_ENTER("spider_param_sts_interval");
+  DBUG_RETURN(THDVAR(thd, sts_interval) == -1 ?
+    sts_interval : THDVAR(thd, sts_interval));
+}
+
+/*
+ -1 :use table parameter
+  0 :use table parameter
+  1 :use show command
+  2 :use information schema
+ */
+static MYSQL_THDVAR_INT(
+  sts_mode, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Mode of table state confirmation.", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  2, /* max */
+  0 /* blk */
+);
+
+int spider_param_sts_mode(
+  THD *thd,
+  int sts_mode
+) {
+  DBUG_ENTER("spider_param_sts_mode");
+  DBUG_RETURN(THDVAR(thd, sts_mode) <= 0 ?
+    sts_mode : THDVAR(thd, sts_mode));
+}
+
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+/*
+ -1 :use table parameter
+  0 :No synchronization.
+  1 :Table state is synchronized when opening a table.
+     Then no synchronization.
+  2 :Synchronization.
+ */
+static MYSQL_THDVAR_INT(
+  sts_sync, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Table state synchronization in partitioned table.", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  2, /* max */
+  0 /* blk */
+);
+
+int spider_param_sts_sync(
+  THD *thd,
+  int sts_sync
+) {
+  DBUG_ENTER("spider_param_sts_sync");
+  DBUG_RETURN(THDVAR(thd, sts_sync) == -1 ?
+    sts_sync : THDVAR(thd, sts_sync));
+}
+#endif
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+/*
+ -1 :use table parameter
+  0 :Background confirmation is disabled
+  1 :Background confirmation is enabled (create thread per table/partition)
+  2 :Background confirmation is enabled (use static threads)
+ */
+static MYSQL_THDVAR_INT(
+  sts_bg_mode, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Mode of table state confirmation at background.", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  2, /* max */
+  0 /* blk */
+);
+
+int spider_param_sts_bg_mode(
+  THD *thd,
+  int sts_bg_mode
+) {
+  DBUG_ENTER("spider_param_sts_bg_mode");
+  DBUG_RETURN(THDVAR(thd, sts_bg_mode) == -1 ?
+    sts_bg_mode : THDVAR(thd, sts_bg_mode));
+}
+#endif
+
+/*
+  0 :always ping
+  1-:interval
+ */
+static MYSQL_THDVAR_INT(
+  ping_interval_at_trx_start, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Ping interval at transaction start", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  3600, /* def */
+  0, /* min */
+  2147483647, /* max */
+  0 /* blk */
+);
+
+double spider_param_ping_interval_at_trx_start(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_ping_interval_at_trx_start");
+  DBUG_RETURN(THDVAR(thd, ping_interval_at_trx_start));
+}
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+/*
+  0 :always ping
+  1-:interval
+ */
+static MYSQL_THDVAR_INT(
+  hs_ping_interval, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Ping interval for handlersocket", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  30, /* def */
+  0, /* min */
+  2147483647, /* max */
+  0 /* blk */
+);
+
+double spider_param_hs_ping_interval(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_hs_ping_interval");
+  DBUG_RETURN(THDVAR(thd, hs_ping_interval));
+}
+#endif
+
+/*
+ -1 :use table parameter
+  0 :normal mode
+  1 :quick mode
+  2 :set 0 value
+ */
+static MYSQL_THDVAR_INT(
+  auto_increment_mode, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Mode of auto increment.", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  3, /* max */
+  0 /* blk */
+);
+
+int spider_param_auto_increment_mode(
+  THD *thd,
+  int auto_increment_mode
+) {
+  DBUG_ENTER("spider_param_auto_increment_mode");
+  DBUG_RETURN(THDVAR(thd, auto_increment_mode) == -1 ?
+    auto_increment_mode : THDVAR(thd, auto_increment_mode));
+}
+
+/*
+  FALSE: off
+  TRUE:  on
+ */
+static MYSQL_THDVAR_BOOL(
+  same_server_link, /* name */
+  PLUGIN_VAR_OPCMDARG, /* opt */
+  "Permit one to link same server's table", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  FALSE /* def */
+);
+
+bool spider_param_same_server_link(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_same_server_link");
+  DBUG_RETURN(THDVAR(thd, same_server_link));
+}
+
+/*
+  FALSE: transmits
+  TRUE:  don't transmit
+ */
+static MYSQL_THDVAR_BOOL(
+  local_lock_table, /* name */
+  PLUGIN_VAR_OPCMDARG, /* opt */
+  "Remote server transmission when lock tables is executed at local",
+    /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  FALSE /* def */
+);
+
+bool spider_param_local_lock_table(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_local_lock_table");
+  DBUG_RETURN(THDVAR(thd, local_lock_table));
+}
+
+/*
+ -1 :use table parameter
+  0 :don't transmit
+  1 :transmits
+ */
+static MYSQL_THDVAR_INT(
+  use_pushdown_udf, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Remote server transmission existence when UDF is used at condition and \"engine_condition_pushdown=1\"", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  1, /* max */
+  0 /* blk */
+);
+
+int spider_param_use_pushdown_udf(
+  THD *thd,
+  int use_pushdown_udf
+) {
+  DBUG_ENTER("spider_param_use_pushdown_udf");
+  DBUG_RETURN(THDVAR(thd, use_pushdown_udf) == -1 ?
+    use_pushdown_udf : THDVAR(thd, use_pushdown_udf));
+}
+
+/*
+ -1 :use table parameter
+  0 :duplicate check on local server
+  1 :avoid duplicate check on local server
+ */
+static MYSQL_THDVAR_INT(
+  direct_dup_insert, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Execute \"REPLACE\" and \"INSERT IGNORE\" on remote server and avoid duplicate check on local server", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  1, /* max */
+  0 /* blk */
+);
+
+int spider_param_direct_dup_insert(
+  THD *thd,
+  int direct_dup_insert
+) {
+  DBUG_ENTER("spider_param_direct_dup_insert");
+  DBUG_RETURN(THDVAR(thd, direct_dup_insert) < 0 ?
+    direct_dup_insert : THDVAR(thd, direct_dup_insert));
+}
+
+static uint spider_udf_table_lock_mutex_count;
+/*
+  1-: mutex count
+ */
+static MYSQL_SYSVAR_UINT(
+  udf_table_lock_mutex_count,
+  spider_udf_table_lock_mutex_count,
+  PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
+  "Mutex count of table lock for Spider UDFs",
+  NULL,
+  NULL,
+  20,
+  1,
+  4294967295U,
+  0
+);
+
+uint spider_param_udf_table_lock_mutex_count()
+{
+  DBUG_ENTER("spider_param_udf_table_lock_mutex_count");
+  DBUG_RETURN(spider_udf_table_lock_mutex_count);
+}
+
+static uint spider_udf_table_mon_mutex_count;
+/*
+  1-: mutex count
+ */
+static MYSQL_SYSVAR_UINT(
+  udf_table_mon_mutex_count,
+  spider_udf_table_mon_mutex_count,
+  PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
+  "Mutex count of table mon for Spider UDFs",
+  NULL,
+  NULL,
+  20,
+  1,
+  4294967295U,
+  0
+);
+
+uint spider_param_udf_table_mon_mutex_count()
+{
+  DBUG_ENTER("spider_param_udf_table_mon_mutex_count");
+  DBUG_RETURN(spider_udf_table_mon_mutex_count);
+}
+
+/*
+  1-:number of rows
+ */
+static MYSQL_THDVAR_LONGLONG(
+  udf_ds_bulk_insert_rows, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Number of rows for bulk inserting", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  9223372036854775807LL, /* max */
+  0 /* blk */
+);
+
+longlong spider_param_udf_ds_bulk_insert_rows(
+  THD *thd,
+  longlong udf_ds_bulk_insert_rows
+) {
+  DBUG_ENTER("spider_param_udf_ds_bulk_insert_rows");
+  DBUG_RETURN(THDVAR(thd, udf_ds_bulk_insert_rows) <= 0 ?
+    udf_ds_bulk_insert_rows : THDVAR(thd, udf_ds_bulk_insert_rows));
+}
+
+/*
+ -1 :use table parameter
+  0 :drop records
+  1 :insert last table
+  2 :insert first table and loop again
+ */
+static MYSQL_THDVAR_INT(
+  udf_ds_table_loop_mode, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Table loop mode if the number of tables in table list are less than the number of result sets", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  2, /* max */
+  0 /* blk */
+);
+
+int spider_param_udf_ds_table_loop_mode(
+  THD *thd,
+  int udf_ds_table_loop_mode
+) {
+  DBUG_ENTER("spider_param_udf_ds_table_loop_mode");
+  DBUG_RETURN(THDVAR(thd, udf_ds_table_loop_mode) == -1 ?
+    udf_ds_table_loop_mode : THDVAR(thd, udf_ds_table_loop_mode));
+}
+
+static char *spider_remote_access_charset;
+/*
+ */
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100000
+static MYSQL_SYSVAR_STR(
+  remote_access_charset,
+  spider_remote_access_charset,
+  PLUGIN_VAR_MEMALLOC |
+  PLUGIN_VAR_RQCMDARG,
+  "Set remote access charset at connecting for improvement performance of connection if you know",
+  NULL,
+  NULL,
+  NULL
+);
+#else
+#ifdef PLUGIN_VAR_CAN_MEMALLOC
+static MYSQL_SYSVAR_STR(
+  remote_access_charset,
+  spider_remote_access_charset,
+  PLUGIN_VAR_MEMALLOC |
+  PLUGIN_VAR_RQCMDARG,
+  "Set remote access charset at connecting for improvement performance of connection if you know",
+  NULL,
+  NULL,
+  NULL
+);
+#else
+static MYSQL_SYSVAR_STR(
+  remote_access_charset,
+  spider_remote_access_charset,
+  PLUGIN_VAR_RQCMDARG,
+  "Set remote access charset at connecting for improvement performance of connection if you know",
+  NULL,
+  NULL,
+  NULL
+);
+#endif
+#endif
+
+char *spider_param_remote_access_charset()
+{
+  DBUG_ENTER("spider_param_remote_access_charset");
+  DBUG_RETURN(spider_remote_access_charset);
+}
+
+static int spider_remote_autocommit;
+/*
+ -1 :don't set
+  0 :autocommit = 0
+  1 :autocommit = 1
+ */
+static MYSQL_SYSVAR_INT(
+  remote_autocommit,
+  spider_remote_autocommit,
+  PLUGIN_VAR_RQCMDARG,
+  "Set autocommit mode at connecting for improvement performance of connection if you know",
+  NULL,
+  NULL,
+  -1,
+  -1,
+  1,
+  0
+);
+
+int spider_param_remote_autocommit()
+{
+  DBUG_ENTER("spider_param_remote_autocommit");
+  DBUG_RETURN(spider_remote_autocommit);
+}
+
+static char *spider_remote_time_zone;
+/*
+ */
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100000
+static MYSQL_SYSVAR_STR(
+  remote_time_zone,
+  spider_remote_time_zone,
+  PLUGIN_VAR_MEMALLOC |
+  PLUGIN_VAR_RQCMDARG,
+  "Set remote time_zone at connecting for improvement performance of connection if you know",
+  NULL,
+  NULL,
+  NULL
+);
+#else
+#ifdef PLUGIN_VAR_CAN_MEMALLOC
+static MYSQL_SYSVAR_STR(
+  remote_time_zone,
+  spider_remote_time_zone,
+  PLUGIN_VAR_MEMALLOC |
+  PLUGIN_VAR_RQCMDARG,
+  "Set remote time_zone at connecting for improvement performance of connection if you know",
+  NULL,
+  NULL,
+  NULL
+);
+#else
+static MYSQL_SYSVAR_STR(
+  remote_time_zone,
+  spider_remote_time_zone,
+  PLUGIN_VAR_RQCMDARG,
+  "Set remote time_zone at connecting for improvement performance of connection if you know",
+  NULL,
+  NULL,
+  NULL
+);
+#endif
+#endif
+
+char *spider_param_remote_time_zone()
+{
+  DBUG_ENTER("spider_param_remote_time_zone");
+  DBUG_RETURN(spider_remote_time_zone);
+}
+
+static int spider_remote_sql_log_off;
+/*
+ -1 :don't know the value on all data nodes, or does not matter
+  0 :sql_log_off = 0 on all data nodes
+  1 :sql_log_off = 1 on all data nodes
+ */
+static MYSQL_SYSVAR_INT(
+  remote_sql_log_off,
+  spider_remote_sql_log_off,
+  PLUGIN_VAR_RQCMDARG,
+  "Set SQL_LOG_OFF mode on connecting for improved performance of connection, if you know",
+  NULL,
+  NULL,
+  -1,
+  -1,
+  1,
+  0
+);
+
+int spider_param_remote_sql_log_off()
+{
+  DBUG_ENTER("spider_param_remote_sql_log_off");
+  DBUG_RETURN(spider_remote_sql_log_off);
+}
+
+static int spider_remote_trx_isolation;
+/*
+ -1 :don't set
+  0 :READ UNCOMMITTED
+  1 :READ COMMITTED
+  2 :REPEATABLE READ
+  3 :SERIALIZABLE
+ */
+static MYSQL_SYSVAR_INT(
+  remote_trx_isolation,
+  spider_remote_trx_isolation,
+  PLUGIN_VAR_RQCMDARG,
+  "Set transaction isolation level at connecting for improvement performance of connection if you know",
+  NULL,
+  NULL,
+  -1,
+  -1,
+  3,
+  0
+);
+
+int spider_param_remote_trx_isolation()
+{
+  DBUG_ENTER("spider_param_remote_trx_isolation");
+  DBUG_RETURN(spider_remote_trx_isolation);
+}
+
+static char *spider_remote_default_database;
+/*
+ */
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100000
+static MYSQL_SYSVAR_STR(
+  remote_default_database,
+  spider_remote_default_database,
+  PLUGIN_VAR_MEMALLOC |
+  PLUGIN_VAR_RQCMDARG,
+  "Set remote database at connecting for improvement performance of connection if you know",
+  NULL,
+  NULL,
+  NULL
+);
+#else
+#ifdef PLUGIN_VAR_CAN_MEMALLOC
+static MYSQL_SYSVAR_STR(
+  remote_default_database,
+  spider_remote_default_database,
+  PLUGIN_VAR_MEMALLOC |
+  PLUGIN_VAR_RQCMDARG,
+  "Set remote database at connecting for improvement performance of connection if you know",
+  NULL,
+  NULL,
+  NULL
+);
+#else
+static MYSQL_SYSVAR_STR(
+  remote_default_database,
+  spider_remote_default_database,
+  PLUGIN_VAR_RQCMDARG,
+  "Set remote database at connecting for improvement performance of connection if you know",
+  NULL,
+  NULL,
+  NULL
+);
+#endif
+#endif
+
+char *spider_param_remote_default_database()
+{
+  DBUG_ENTER("spider_param_remote_default_database");
+  DBUG_RETURN(spider_remote_default_database);
+}
+
+/*
+  0-:connect retry interval (micro second)
+ */
+static MYSQL_THDVAR_LONGLONG(
+  connect_retry_interval, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Connect retry interval", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  1000, /* def */
+  0, /* min */
+  9223372036854775807LL, /* max */
+  0 /* blk */
+);
+
+longlong spider_param_connect_retry_interval(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_connect_retry_interval");
+  if (thd)
+    DBUG_RETURN(THDVAR(thd, connect_retry_interval));
+  DBUG_RETURN(0);
+}
+
+/*
+  0-:connect retry count
+ */
+static MYSQL_THDVAR_INT(
+  connect_retry_count, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Connect retry count", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  1000, /* def */
+  0, /* min */
+  2147483647, /* max */
+  0 /* blk */
+);
+
+int spider_param_connect_retry_count(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_connect_retry_count");
+  if (thd)
+    DBUG_RETURN(THDVAR(thd, connect_retry_count));
+  DBUG_RETURN(0);
+}
+
+/*
+ */
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100000
+static MYSQL_THDVAR_STR(
+  bka_engine, /* name */
+  PLUGIN_VAR_MEMALLOC |
+  PLUGIN_VAR_RQCMDARG,
+  "Temporary table's engine for BKA", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  NULL /* def */
+);
+#else
+#ifdef PLUGIN_VAR_CAN_MEMALLOC
+static MYSQL_THDVAR_STR(
+  bka_engine, /* name */
+  PLUGIN_VAR_MEMALLOC |
+  PLUGIN_VAR_RQCMDARG,
+  "Temporary table's engine for BKA", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  NULL /* def */
+);
+#else
+static MYSQL_THDVAR_STR(
+  bka_engine, /* name */
+  PLUGIN_VAR_RQCMDARG,
+  "Temporary table's engine for BKA", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  NULL /* def */
+);
+#endif
+#endif
+
+char *spider_param_bka_engine(
+  THD *thd,
+  char *bka_engine
+) {
+  DBUG_ENTER("spider_param_bka_engine");
+  DBUG_RETURN(THDVAR(thd, bka_engine) ?
+    THDVAR(thd, bka_engine) : bka_engine);
+}
+
+/*
+ -1 :use table parameter
+  0 :use union all
+  1 :use temporary table
+ */
+static MYSQL_THDVAR_INT(
+  bka_mode, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Mode of BKA for Spider", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  2, /* max */
+  0 /* blk */
+);
+
+int spider_param_bka_mode(
+  THD *thd,
+  int bka_mode
+) {
+  DBUG_ENTER("spider_param_bka_mode");
+  DBUG_RETURN(THDVAR(thd, bka_mode) == -1 ?
+    bka_mode : THDVAR(thd, bka_mode));
+}
+
+static int spider_udf_ct_bulk_insert_interval;
+/*
+ -1         : The UDF parameter is adopted.
+  0 or more : Milliseconds.
+ */
+static MYSQL_SYSVAR_INT(
+  udf_ct_bulk_insert_interval,
+  spider_udf_ct_bulk_insert_interval,
+  PLUGIN_VAR_RQCMDARG,
+  "The interval time between bulk insert and next bulk insert at coping",
+  NULL,
+  NULL,
+  -1,
+  -1,
+  2147483647,
+  0
+);
+
+int spider_param_udf_ct_bulk_insert_interval(
+  int udf_ct_bulk_insert_interval
+) {
+  DBUG_ENTER("spider_param_udf_ct_bulk_insert_interval");
+  DBUG_RETURN(spider_udf_ct_bulk_insert_interval < 0 ?
+    udf_ct_bulk_insert_interval : spider_udf_ct_bulk_insert_interval);
+}
+
+static longlong spider_udf_ct_bulk_insert_rows;
+/*
+ -1,0       : The UDF parameter is adopted.
+  1 or more : Number of rows.
+ */
+static MYSQL_SYSVAR_LONGLONG(
+  udf_ct_bulk_insert_rows,
+  spider_udf_ct_bulk_insert_rows,
+  PLUGIN_VAR_RQCMDARG,
+  "The number of rows inserted with bulk insert of one time at coping",
+  NULL,
+  NULL,
+  -1,
+  -1,
+  9223372036854775807LL,
+  0
+);
+
+longlong spider_param_udf_ct_bulk_insert_rows(
+  longlong udf_ct_bulk_insert_rows
+) {
+  DBUG_ENTER("spider_param_udf_ct_bulk_insert_rows");
+  DBUG_RETURN(spider_udf_ct_bulk_insert_rows <= 0 ?
+    udf_ct_bulk_insert_rows : spider_udf_ct_bulk_insert_rows);
+}
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+/*
+  0: no recycle
+  1: recycle in instance
+  2: recycle in thread
+ */
+static MYSQL_THDVAR_UINT(
+  hs_r_conn_recycle_mode, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Handlersocket connection recycle mode", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  2, /* def */
+  0, /* min */
+  2, /* max */
+  0 /* blk */
+);
+
+uint spider_param_hs_r_conn_recycle_mode(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_hs_r_conn_recycle_mode");
+  DBUG_RETURN(THDVAR(thd, hs_r_conn_recycle_mode));
+}
+
+/*
+  0: weak
+  1: strict
+ */
+static MYSQL_THDVAR_UINT(
+  hs_r_conn_recycle_strict, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Strict handlersocket connection recycle", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  0, /* def */
+  0, /* min */
+  1, /* max */
+  0 /* blk */
+);
+
+uint spider_param_hs_r_conn_recycle_strict(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_hs_r_conn_recycle_strict");
+  DBUG_RETURN(THDVAR(thd, hs_r_conn_recycle_strict));
+}
+
+/*
+  0: no recycle
+  1: recycle in instance
+  2: recycle in thread
+ */
+static MYSQL_THDVAR_UINT(
+  hs_w_conn_recycle_mode, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Handlersocket connection recycle mode", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  2, /* def */
+  0, /* min */
+  2, /* max */
+  0 /* blk */
+);
+
+uint spider_param_hs_w_conn_recycle_mode(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_hs_w_conn_recycle_mode");
+  DBUG_RETURN(THDVAR(thd, hs_w_conn_recycle_mode));
+}
+
+/*
+  0: weak
+  1: strict
+ */
+static MYSQL_THDVAR_UINT(
+  hs_w_conn_recycle_strict, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Strict handlersocket connection recycle", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  0, /* def */
+  0, /* min */
+  1, /* max */
+  0 /* blk */
+);
+
+uint spider_param_hs_w_conn_recycle_strict(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_hs_w_conn_recycle_strict");
+  DBUG_RETURN(THDVAR(thd, hs_w_conn_recycle_strict));
+}
+
+/*
+ -1 :use table parameter
+  0 :not use
+  1 :use handlersocket
+ */
+static MYSQL_THDVAR_INT(
+  use_hs_read, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Use handlersocket for reading", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  1, /* max */
+  0 /* blk */
+);
+
+int spider_param_use_hs_read(
+  THD *thd,
+  int use_hs_read
+) {
+  DBUG_ENTER("spider_param_use_hs_read");
+  DBUG_RETURN(THDVAR(thd, use_hs_read) == -1 ?
+    use_hs_read : THDVAR(thd, use_hs_read));
+}
+
+/*
+ -1 :use table parameter
+  0 :not use
+  1 :use handlersocket
+ */
+static MYSQL_THDVAR_INT(
+  use_hs_write, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Use handlersocket for writing", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  1, /* max */
+  0 /* blk */
+);
+
+int spider_param_use_hs_write(
+  THD *thd,
+  int use_hs_write
+) {
+  DBUG_ENTER("spider_param_use_hs_write");
+  DBUG_RETURN(THDVAR(thd, use_hs_write) == -1 ?
+    use_hs_write : THDVAR(thd, use_hs_write));
+}
+#endif
+
+/*
+ -1 :use table parameter
+  0 :not use
+  1 :use handler
+ */
+static MYSQL_THDVAR_INT(
+  use_handler, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Use handler for reading", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  3, /* max */
+  0 /* blk */
+);
+
+int spider_param_use_handler(
+  THD *thd,
+  int use_handler
+) {
+  DBUG_ENTER("spider_param_use_handler");
+  DBUG_RETURN(THDVAR(thd, use_handler) == -1 ?
+    use_handler : THDVAR(thd, use_handler));
+}
+
+/*
+ -1 :use table parameter
+  0 :return error if error
+  1 :return 0 record if error
+ */
+static MYSQL_THDVAR_INT(
+  error_read_mode, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Read error mode if error", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  1, /* max */
+  0 /* blk */
+);
+
+int spider_param_error_read_mode(
+  THD *thd,
+  int error_read_mode
+) {
+  DBUG_ENTER("spider_param_error_read_mode");
+  DBUG_RETURN(THDVAR(thd, error_read_mode) == -1 ?
+    error_read_mode : THDVAR(thd, error_read_mode));
+}
+
+/*
+ -1 :use table parameter
+  0 :return error if error
+  1 :return 0 record if error
+ */
+static MYSQL_THDVAR_INT(
+  error_write_mode, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Write error mode if error", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  1, /* max */
+  0 /* blk */
+);
+
+int spider_param_error_write_mode(
+  THD *thd,
+  int error_write_mode
+) {
+  DBUG_ENTER("spider_param_error_write_mode");
+  DBUG_RETURN(THDVAR(thd, error_write_mode) == -1 ?
+    error_write_mode : THDVAR(thd, error_write_mode));
+}
+
+/*
+ -1 :use table parameter
+  0 :not skip
+  1 :skip
+ */
+static MYSQL_THDVAR_INT(
+  skip_default_condition, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Skip generating internal default condition", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  1, /* max */
+  0 /* blk */
+);
+
+int spider_param_skip_default_condition(
+  THD *thd,
+  int skip_default_condition
+) {
+  DBUG_ENTER("spider_param_skip_default_condition");
+  DBUG_RETURN(THDVAR(thd, skip_default_condition) == -1 ?
+    skip_default_condition : THDVAR(thd, skip_default_condition));
+}
+
+/*
+ -1 :use table parameter
+  0 :not skip
+  1 :skip parallel search if query is not SELECT statement
+  2 :skip parallel search if query has SQL_NO_CACHE
+  3 :1+2
+ */
+static MYSQL_THDVAR_INT(
+  skip_parallel_search, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Skip parallel search by specific conditions", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  3, /* max */
+  0 /* blk */
+);
+
+int spider_param_skip_parallel_search(
+  THD *thd,
+  int skip_parallel_search
+) {
+  DBUG_ENTER("spider_param_skip_parallel_search");
+  DBUG_RETURN(THDVAR(thd, skip_parallel_search) == -1 ?
+    skip_parallel_search : THDVAR(thd, skip_parallel_search));
+}
+
+/*
+ -1 :use table parameter
+  0 :not send directly
+  1-:send directly
+ */
+static MYSQL_THDVAR_LONGLONG(
+  direct_order_limit, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Send 'ORDER BY' and 'LIMIT' to remote server directly", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  9223372036854775807LL, /* max */
+  0 /* blk */
+);
+
+longlong spider_param_direct_order_limit(
+  THD *thd,
+  longlong direct_order_limit
+) {
+  DBUG_ENTER("spider_param_direct_order_limit");
+  DBUG_RETURN(THDVAR(thd, direct_order_limit) == -1 ?
+    direct_order_limit : THDVAR(thd, direct_order_limit));
+}
+
+/*
+ -1 :use table parameter
+  0 :writable
+  1 :read only
+ */
+static MYSQL_THDVAR_INT(
+  read_only_mode, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Read only", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  1, /* max */
+  0 /* blk */
+);
+
+int spider_param_read_only_mode(
+  THD *thd,
+  int read_only_mode
+) {
+  DBUG_ENTER("spider_param_read_only_mode");
+  DBUG_RETURN(THDVAR(thd, read_only_mode) == -1 ?
+    read_only_mode : THDVAR(thd, read_only_mode));
+}
+
+#ifdef HA_CAN_BULK_ACCESS
+static int spider_bulk_access_free;
+/*
+ -1 :use table parameter
+  0 :in reset
+  1 :in close
+ */
+static MYSQL_SYSVAR_INT(
+  bulk_access_free,
+  spider_bulk_access_free,
+  PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
+  "Free mode of bulk access resources",
+  NULL,
+  NULL,
+  -1,
+  -1,
+  1,
+  0
+);
+
+int spider_param_bulk_access_free(
+  int bulk_access_free
+) {
+  DBUG_ENTER("spider_param_bulk_access_free");
+  DBUG_RETURN(spider_bulk_access_free == -1 ?
+    bulk_access_free : spider_bulk_access_free);
+}
+#endif
+
+#if MYSQL_VERSION_ID < 50500
+#else
+/*
+ -1 :use UDF parameter
+  0 :can not use
+  1 :can use
+ */
+static MYSQL_THDVAR_INT(
+  udf_ds_use_real_table, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Use real table for temporary table list", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  1, /* max */
+  0 /* blk */
+);
+
+int spider_param_udf_ds_use_real_table(
+  THD *thd,
+  int udf_ds_use_real_table
+) {
+  DBUG_ENTER("spider_param_udf_ds_use_real_table");
+  DBUG_RETURN(THDVAR(thd, udf_ds_use_real_table) == -1 ?
+    udf_ds_use_real_table : THDVAR(thd, udf_ds_use_real_table));
+}
+#endif
+
+static my_bool spider_general_log;
+static MYSQL_SYSVAR_BOOL(
+  general_log,
+  spider_general_log,
+  PLUGIN_VAR_OPCMDARG,
+  "Log query to remote server in general log",
+  NULL,
+  NULL,
+  FALSE
+);
+
+my_bool spider_param_general_log()
+{
+  DBUG_ENTER("spider_param_general_log");
+  DBUG_RETURN(spider_general_log);
+}
+
+/*
+  FALSE: no pushdown hints
+  TRUE:  pushdown hints
+ */
+static MYSQL_THDVAR_BOOL(
+  index_hint_pushdown, /* name */
+  PLUGIN_VAR_OPCMDARG, /* opt */
+  "switch to control if push down index hint, like force_index", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  FALSE /* def */
+);
+
+my_bool spider_param_index_hint_pushdown(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_index_hint_pushdown");
+  DBUG_RETURN(THDVAR(thd, index_hint_pushdown));
+}
+
+static uint spider_max_connections;
+static MYSQL_SYSVAR_UINT(
+  max_connections,
+  spider_max_connections,
+  PLUGIN_VAR_RQCMDARG,
+  "the values, as the max conncetion from spider to remote mysql. Default 0, mean unlimit the connections",
+  NULL,
+  NULL,
+  0, /* def */
+  0, /* min */
+  99999, /* max */
+  0 /* blk */
+);
+
+uint spider_param_max_connections()
+{
+  DBUG_ENTER("spider_param_max_connections");
+  DBUG_RETURN(spider_max_connections);
+}
+
+static uint spider_conn_wait_timeout;
+static MYSQL_SYSVAR_UINT(
+  conn_wait_timeout,
+  spider_conn_wait_timeout,
+  PLUGIN_VAR_RQCMDARG,
+  "the values, as the max waiting time when spider get a remote conn",
+  NULL,
+  NULL,
+  10, /* def */
+  0, /* min */
+  1000, /* max */
+  0 /* blk */
+);
+
+uint spider_param_conn_wait_timeout()
+{
+  DBUG_ENTER("spider_param_conn_wait_timeout");
+  DBUG_RETURN(spider_conn_wait_timeout);
+}
+
+static uint spider_log_result_errors;
+/*
+  0: no log
+  1: log error
+  2: log warning summary
+  3: log warning
+  4: log info
+ */
+static MYSQL_SYSVAR_UINT(
+  log_result_errors,
+  spider_log_result_errors,
+  PLUGIN_VAR_RQCMDARG,
+  "Log error from remote server in error log",
+  NULL,
+  NULL,
+  0,
+  0,
+  4,
+  0
+);
+
+uint spider_param_log_result_errors()
+{
+  DBUG_ENTER("spider_param_log_result_errors");
+  DBUG_RETURN(spider_log_result_errors);
+}
+
+static uint spider_log_result_error_with_sql;
+/*
+  0: no log
+  1: log spider sql at logging result errors
+  2: log user sql at logging result errors
+  3: log both sql at logging result errors
+ */
+static MYSQL_SYSVAR_UINT(
+  log_result_error_with_sql,
+  spider_log_result_error_with_sql,
+  PLUGIN_VAR_RQCMDARG,
+  "Log sql at logging result errors",
+  NULL,
+  NULL,
+  0,
+  0,
+  3,
+  0
+);
+
+uint spider_param_log_result_error_with_sql()
+{
+  DBUG_ENTER("spider_param_log_result_error_with_sql");
+  DBUG_RETURN(spider_log_result_error_with_sql);
+}
+
+static char *spider_version = (char *) SPIDER_DETAIL_VERSION;
+static MYSQL_SYSVAR_STR(
+  version,
+  spider_version,
+  PLUGIN_VAR_NOCMDOPT | PLUGIN_VAR_READONLY,
+  "The version of Spider",
+  NULL,
+  NULL,
+  SPIDER_DETAIL_VERSION
+);
+
+/*
+  0: server_id + thread_id
+  1: server_id + thread_id + query_id
+ */
+static MYSQL_THDVAR_UINT(
+  internal_xa_id_type, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "The type of internal_xa id", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  0, /* def */
+  0, /* min */
+  1, /* max */
+  0 /* blk */
+);
+
+uint spider_param_internal_xa_id_type(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_internal_xa_id_type");
+  DBUG_RETURN(THDVAR(thd, internal_xa_id_type));
+}
+
+/*
+ -1 :use table parameter
+  0 :OFF
+  1 :automatic channel
+  2-63 :use custom channel
+ */
+static MYSQL_THDVAR_INT(
+  casual_read, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Read casually if it is possible", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  63, /* max */
+  0 /* blk */
+);
+
+int spider_param_casual_read(
+  THD *thd,
+  int casual_read
+) {
+  DBUG_ENTER("spider_param_casual_read");
+  DBUG_RETURN(THDVAR(thd, casual_read) == -1 ?
+    casual_read : THDVAR(thd, casual_read));
+}
+
+static my_bool spider_dry_access;
+static MYSQL_SYSVAR_BOOL(
+  dry_access,
+  spider_dry_access,
+  PLUGIN_VAR_OPCMDARG | PLUGIN_VAR_READONLY,
+  "dry access",
+  NULL,
+  NULL,
+  FALSE
+);
+
+my_bool spider_param_dry_access()
+{
+  DBUG_ENTER("spider_param_dry_access");
+  DBUG_RETURN(spider_dry_access);
+}
+
+/*
+ -1 :use table parameter
+  0 :fast
+  1 :correct delete row number
+ */
+static MYSQL_THDVAR_INT(
+  delete_all_rows_type, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "The type of delete_all_rows", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  1, /* max */
+  0 /* blk */
+);
+
+int spider_param_delete_all_rows_type(
+  THD *thd,
+  int delete_all_rows_type
+) {
+  DBUG_ENTER("spider_param_delete_all_rows_type");
+  DBUG_RETURN(THDVAR(thd, delete_all_rows_type) == -1 ?
+    delete_all_rows_type : THDVAR(thd, delete_all_rows_type));
+}
+
+/*
+ -1 :use table parameter
+  0 :compact
+  1 :add original table name
+ */
+static MYSQL_THDVAR_INT(
+  bka_table_name_type, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "The type of temporary table name for bka", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  1, /* max */
+  0 /* blk */
+);
+
+int spider_param_bka_table_name_type(
+  THD *thd,
+  int bka_table_name_type
+) {
+  DBUG_ENTER("spider_param_bka_table_name_type");
+  DBUG_RETURN(THDVAR(thd, bka_table_name_type) == -1 ?
+    bka_table_name_type : THDVAR(thd, bka_table_name_type));
+}
+
+/*
+ -1 :use table parameter
+  0 :off
+  1 :on
+ */
+static MYSQL_THDVAR_INT(
+  use_cond_other_than_pk_for_update, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Use all conditions even if condition has pk", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  1, /* def */
+  0, /* min */
+  1, /* max */
+  0 /* blk */
+);
+
+int spider_param_use_cond_other_than_pk_for_update(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_reset_sql_alloc");
+  DBUG_RETURN(THDVAR(thd, use_cond_other_than_pk_for_update));
+}
+
+static int spider_store_last_sts;
+/*
+ -1 : use table parameter
+  0 : do not store
+  1 : do store
+ */
+static MYSQL_SYSVAR_INT(
+  store_last_sts,
+  spider_store_last_sts,
+  PLUGIN_VAR_RQCMDARG,
+  "Store last sts result into system table",
+  NULL,
+  NULL,
+  -1,
+  -1,
+  1,
+  0
+);
+
+int spider_param_store_last_sts(
+  int store_last_sts
+) {
+  DBUG_ENTER("spider_param_store_last_sts");
+  DBUG_RETURN(spider_store_last_sts == -1 ?
+    store_last_sts : spider_store_last_sts);
+}
+
+static int spider_store_last_crd;
+/*
+ -1 : use table parameter
+  0 : do not store
+  1 : do store
+ */
+static MYSQL_SYSVAR_INT(
+  store_last_crd,
+  spider_store_last_crd,
+  PLUGIN_VAR_RQCMDARG,
+  "Store last crd result into system table",
+  NULL,
+  NULL,
+  -1,
+  -1,
+  1,
+  0
+);
+
+int spider_param_store_last_crd(
+  int store_last_crd
+) {
+  DBUG_ENTER("spider_param_store_last_crd");
+  DBUG_RETURN(spider_store_last_crd == -1 ?
+    store_last_crd : spider_store_last_crd);
+}
+
+static int spider_load_sts_at_startup;
+/*
+ -1 : use table parameter
+  0 : do not load
+  1 : do load
+ */
+static MYSQL_SYSVAR_INT(
+  load_sts_at_startup,
+  spider_load_sts_at_startup,
+  PLUGIN_VAR_RQCMDARG,
+  "Load sts from system table at startup",
+  NULL,
+  NULL,
+  -1,
+  -1,
+  1,
+  0
+);
+
+int spider_param_load_sts_at_startup(
+  int load_sts_at_startup
+) {
+  DBUG_ENTER("spider_param_load_sts_at_startup");
+  DBUG_RETURN(spider_load_sts_at_startup == -1 ?
+    load_sts_at_startup : spider_load_sts_at_startup);
+}
+
+static int spider_load_crd_at_startup;
+/*
+ -1 : use table parameter
+  0 : do not load
+  1 : do load
+ */
+static MYSQL_SYSVAR_INT(
+  load_crd_at_startup,
+  spider_load_crd_at_startup,
+  PLUGIN_VAR_RQCMDARG,
+  "Load crd from system table at startup",
+  NULL,
+  NULL,
+  -1,
+  -1,
+  1,
+  0
+);
+
+int spider_param_load_crd_at_startup(
+  int load_crd_at_startup
+) {
+  DBUG_ENTER("spider_param_load_crd_at_startup");
+  DBUG_RETURN(spider_load_crd_at_startup == -1 ?
+    load_crd_at_startup : spider_load_crd_at_startup);
+}
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+static uint spider_table_sts_thread_count;
+/*
+  1-: thread count
+ */
+static MYSQL_SYSVAR_UINT(
+  table_sts_thread_count,
+  spider_table_sts_thread_count,
+  PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
+  "Static thread count of table sts",
+  NULL,
+  NULL,
+  10,
+  1,
+  4294967295U,
+  0
+);
+
+uint spider_param_table_sts_thread_count()
+{
+  DBUG_ENTER("spider_param_table_sts_thread_count");
+  DBUG_RETURN(spider_table_sts_thread_count);
+}
+
+static uint spider_table_crd_thread_count;
+/*
+  1-: thread count
+ */
+static MYSQL_SYSVAR_UINT(
+  table_crd_thread_count,
+  spider_table_crd_thread_count,
+  PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
+  "Static thread count of table crd",
+  NULL,
+  NULL,
+  10,
+  1,
+  4294967295U,
+  0
+);
+
+uint spider_param_table_crd_thread_count()
+{
+  DBUG_ENTER("spider_param_table_crd_thread_count");
+  DBUG_RETURN(spider_table_crd_thread_count);
+}
+#endif
+
+static int spider_slave_trx_isolation;
+/*
+ -1 :off
+  0 :read uncommitted
+  1 :read committed
+  2 :repeatable read
+  3 :serializable
+ */
+static MYSQL_SYSVAR_INT(
+  slave_trx_isolation,
+  spider_slave_trx_isolation,
+  PLUGIN_VAR_RQCMDARG,
+  "Transaction isolation level when Spider table is used by slave SQL thread",
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  3, /* max */
+  0 /* blk */
+);
+
+int spider_param_slave_trx_isolation()
+{
+  DBUG_ENTER("spider_param_slave_trx_isolation");
+  DBUG_RETURN(spider_slave_trx_isolation);
+}
+
+/*
+ -1 :not set
+  0-:seconds of timeout
+ */
+static MYSQL_THDVAR_INT(
+  remote_wait_timeout, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Wait timeout on remote server", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  2147483647, /* max */
+  0 /* blk */
+);
+
+int spider_param_remote_wait_timeout(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_remote_wait_timeout");
+  if (likely(thd))
+    DBUG_RETURN(THDVAR(thd, remote_wait_timeout));
+  DBUG_RETURN(-1);
+}
+
+/*
+ -1 :not set
+  0-:seconds of timeout
+ */
+static MYSQL_THDVAR_INT(
+  wait_timeout, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Wait timeout of setting to remote server", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  604800, /* def */
+  -1, /* min */
+  2147483647, /* max */
+  0 /* blk */
+);
+
+int spider_param_wait_timeout(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_wait_timeout");
+  if (likely(thd))
+    DBUG_RETURN(THDVAR(thd, wait_timeout));
+  DBUG_RETURN(604800);
+}
+
+/*
+  FALSE: no sync
+  TRUE:  sync
+ */
+static MYSQL_THDVAR_BOOL(
+  sync_sql_mode, /* name */
+  PLUGIN_VAR_OPCMDARG, /* opt */
+  "Sync sql_mode", /* comment */
+  NULL, /* check */
+  NULL, /* update */
+  TRUE /* def */
+);
+
+bool spider_param_sync_sql_mode(
+  THD *thd
+) {
+  DBUG_ENTER("spider_param_sync_sql_mode");
+  DBUG_RETURN(THDVAR(thd, sync_sql_mode));
+}
+
+/*
+ -1 : use table parameter
+  0 : do not strict
+  1 : do strict
+ */
+static MYSQL_THDVAR_INT(
+  strict_group_by, /* name */
+  PLUGIN_VAR_RQCMDARG, /* opt */
+  "Use columns in select clause strictly for group by clause",
+  NULL, /* check */
+  NULL, /* update */
+  -1, /* def */
+  -1, /* min */
+  1, /* max */
+  0 /* blk */
+);
+
+int spider_param_strict_group_by(
+  THD *thd,
+  int strict_group_by
+) {
+  DBUG_ENTER("spider_param_strict_group_by");
+  DBUG_RETURN(THDVAR(thd, strict_group_by) == -1 ?
+    strict_group_by : THDVAR(thd, strict_group_by));
+}
+
+static struct st_mysql_storage_engine spider_storage_engine =
+{ MYSQL_HANDLERTON_INTERFACE_VERSION };
+
+static struct st_mysql_sys_var* spider_system_variables[] = {
+  MYSQL_SYSVAR(support_xa),
+  MYSQL_SYSVAR(table_init_error_interval),
+  MYSQL_SYSVAR(use_table_charset),
+  MYSQL_SYSVAR(conn_recycle_mode),
+  MYSQL_SYSVAR(conn_recycle_strict),
+  MYSQL_SYSVAR(sync_trx_isolation),
+  MYSQL_SYSVAR(use_consistent_snapshot),
+  MYSQL_SYSVAR(internal_xa),
+  MYSQL_SYSVAR(internal_xa_snapshot),
+  MYSQL_SYSVAR(force_commit),
+  MYSQL_SYSVAR(xa_register_mode),
+  MYSQL_SYSVAR(internal_offset),
+  MYSQL_SYSVAR(internal_limit),
+  MYSQL_SYSVAR(split_read),
+  MYSQL_SYSVAR(semi_split_read),
+  MYSQL_SYSVAR(semi_split_read_limit),
+  MYSQL_SYSVAR(init_sql_alloc_size),
+  MYSQL_SYSVAR(reset_sql_alloc),
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  MYSQL_SYSVAR(hs_result_free_size),
+#endif
+  MYSQL_SYSVAR(multi_split_read),
+  MYSQL_SYSVAR(max_order),
+  MYSQL_SYSVAR(semi_trx_isolation),
+  MYSQL_SYSVAR(semi_table_lock),
+  MYSQL_SYSVAR(semi_table_lock_connection),
+  MYSQL_SYSVAR(block_size),
+  MYSQL_SYSVAR(selupd_lock_mode),
+  MYSQL_SYSVAR(sync_autocommit),
+  MYSQL_SYSVAR(use_default_database),
+  MYSQL_SYSVAR(internal_sql_log_off),
+  MYSQL_SYSVAR(bulk_size),
+  MYSQL_SYSVAR(bulk_update_mode),
+  MYSQL_SYSVAR(bulk_update_size),
+  MYSQL_SYSVAR(buffer_size),
+  MYSQL_SYSVAR(internal_optimize),
+  MYSQL_SYSVAR(internal_optimize_local),
+  MYSQL_SYSVAR(use_flash_logs),
+  MYSQL_SYSVAR(use_snapshot_with_flush_tables),
+  MYSQL_SYSVAR(use_all_conns_snapshot),
+  MYSQL_SYSVAR(lock_exchange),
+  MYSQL_SYSVAR(internal_unlock),
+  MYSQL_SYSVAR(semi_trx),
+  MYSQL_SYSVAR(connect_timeout),
+  MYSQL_SYSVAR(net_read_timeout),
+  MYSQL_SYSVAR(net_write_timeout),
+  MYSQL_SYSVAR(quick_mode),
+  MYSQL_SYSVAR(quick_page_size),
+  MYSQL_SYSVAR(quick_page_byte),
+  MYSQL_SYSVAR(low_mem_read),
+  MYSQL_SYSVAR(select_column_mode),
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  MYSQL_SYSVAR(bgs_mode),
+  MYSQL_SYSVAR(bgs_first_read),
+  MYSQL_SYSVAR(bgs_second_read),
+#endif
+  MYSQL_SYSVAR(first_read),
+  MYSQL_SYSVAR(second_read),
+  MYSQL_SYSVAR(crd_interval),
+  MYSQL_SYSVAR(crd_mode),
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  MYSQL_SYSVAR(crd_sync),
+#endif
+  MYSQL_SYSVAR(store_last_crd),
+  MYSQL_SYSVAR(load_crd_at_startup),
+  MYSQL_SYSVAR(crd_type),
+  MYSQL_SYSVAR(crd_weight),
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  MYSQL_SYSVAR(crd_bg_mode),
+#endif
+  MYSQL_SYSVAR(sts_interval),
+  MYSQL_SYSVAR(sts_mode),
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  MYSQL_SYSVAR(sts_sync),
+#endif
+  MYSQL_SYSVAR(store_last_sts),
+  MYSQL_SYSVAR(load_sts_at_startup),
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  MYSQL_SYSVAR(sts_bg_mode),
+#endif
+  MYSQL_SYSVAR(ping_interval_at_trx_start),
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  MYSQL_SYSVAR(hs_ping_interval),
+#endif
+  MYSQL_SYSVAR(auto_increment_mode),
+  MYSQL_SYSVAR(same_server_link),
+  MYSQL_SYSVAR(local_lock_table),
+  MYSQL_SYSVAR(use_pushdown_udf),
+  MYSQL_SYSVAR(direct_dup_insert),
+  MYSQL_SYSVAR(udf_table_lock_mutex_count),
+  MYSQL_SYSVAR(udf_table_mon_mutex_count),
+  MYSQL_SYSVAR(udf_ds_bulk_insert_rows),
+  MYSQL_SYSVAR(udf_ds_table_loop_mode),
+  MYSQL_SYSVAR(remote_access_charset),
+  MYSQL_SYSVAR(remote_autocommit),
+  MYSQL_SYSVAR(remote_time_zone),
+  MYSQL_SYSVAR(remote_sql_log_off),
+  MYSQL_SYSVAR(remote_trx_isolation),
+  MYSQL_SYSVAR(remote_default_database),
+  MYSQL_SYSVAR(connect_retry_interval),
+  MYSQL_SYSVAR(connect_retry_count),
+  MYSQL_SYSVAR(connect_mutex),
+  MYSQL_SYSVAR(bka_engine),
+  MYSQL_SYSVAR(bka_mode),
+  MYSQL_SYSVAR(udf_ct_bulk_insert_interval),
+  MYSQL_SYSVAR(udf_ct_bulk_insert_rows),
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  MYSQL_SYSVAR(hs_r_conn_recycle_mode),
+  MYSQL_SYSVAR(hs_r_conn_recycle_strict),
+  MYSQL_SYSVAR(hs_w_conn_recycle_mode),
+  MYSQL_SYSVAR(hs_w_conn_recycle_strict),
+  MYSQL_SYSVAR(use_hs_read),
+  MYSQL_SYSVAR(use_hs_write),
+#endif
+  MYSQL_SYSVAR(use_handler),
+  MYSQL_SYSVAR(error_read_mode),
+  MYSQL_SYSVAR(error_write_mode),
+  MYSQL_SYSVAR(skip_default_condition),
+  MYSQL_SYSVAR(skip_parallel_search),
+  MYSQL_SYSVAR(direct_order_limit),
+  MYSQL_SYSVAR(read_only_mode),
+#ifdef HA_CAN_BULK_ACCESS
+  MYSQL_SYSVAR(bulk_access_free),
+#endif
+#if MYSQL_VERSION_ID < 50500
+#else
+  MYSQL_SYSVAR(udf_ds_use_real_table),
+#endif
+  MYSQL_SYSVAR(general_log),
+  MYSQL_SYSVAR(index_hint_pushdown),
+  MYSQL_SYSVAR(max_connections),
+  MYSQL_SYSVAR(conn_wait_timeout),
+  MYSQL_SYSVAR(log_result_errors),
+  MYSQL_SYSVAR(log_result_error_with_sql),
+  MYSQL_SYSVAR(version),
+  MYSQL_SYSVAR(internal_xa_id_type),
+  MYSQL_SYSVAR(casual_read),
+  MYSQL_SYSVAR(dry_access),
+  MYSQL_SYSVAR(delete_all_rows_type),
+  MYSQL_SYSVAR(bka_table_name_type),
+  MYSQL_SYSVAR(use_cond_other_than_pk_for_update),
+  MYSQL_SYSVAR(connect_error_interval),
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  MYSQL_SYSVAR(table_sts_thread_count),
+  MYSQL_SYSVAR(table_crd_thread_count),
+#endif
+  MYSQL_SYSVAR(slave_trx_isolation),
+  MYSQL_SYSVAR(remote_wait_timeout),
+  MYSQL_SYSVAR(wait_timeout),
+  MYSQL_SYSVAR(sync_sql_mode),
+  MYSQL_SYSVAR(strict_group_by),
+  NULL
+};
+
+mysql_declare_plugin(spider)
+{
+  MYSQL_STORAGE_ENGINE_PLUGIN,
+  &spider_storage_engine,
+  "SPIDER",
+  "Kentoku Shiba",
+  "Spider storage engine",
+  PLUGIN_LICENSE_GPL,
+  spider_db_init,
+  spider_db_done,
+  SPIDER_HEX_VERSION,
+  spider_status_variables,
+  spider_system_variables,
+  NULL,
+#if MYSQL_VERSION_ID >= 50600
+  0,
+#endif
+},
+spider_i_s_alloc_mem,
+spider_i_s_wrapper_protocols
+mysql_declare_plugin_end;
+
+#ifdef MARIADB_BASE_VERSION
+maria_declare_plugin(spider)
+{
+  MYSQL_STORAGE_ENGINE_PLUGIN,
+  &spider_storage_engine,
+  "SPIDER",
+  "Kentoku Shiba",
+  "Spider storage engine",
+  PLUGIN_LICENSE_GPL,
+  spider_db_init,
+  spider_db_done,
+  SPIDER_HEX_VERSION,
+  spider_status_variables,
+  spider_system_variables,
+  SPIDER_DETAIL_VERSION,
+  MariaDB_PLUGIN_MATURITY_STABLE
+},
+spider_i_s_alloc_mem_maria,
+spider_i_s_wrapper_protocols_maria
+maria_declare_plugin_end;
+#endif
diff --git a/storage/spider/spd_param.h b/storage/spider/spd_param.h
new file mode 100644
index 00000000..c3a79cec
--- /dev/null
+++ b/storage/spider/spd_param.h
@@ -0,0 +1,442 @@
+/* Copyright (C) 2008-2019 Kentoku Shiba
+   Copyright (C) 2019 MariaDB corp
+
+  This program is free software); you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation); version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY); without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program); if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+my_bool spider_param_support_xa();
+my_bool spider_param_connect_mutex();
+uint spider_param_connect_error_interval();
+uint spider_param_table_init_error_interval();
+int spider_param_use_table_charset(
+  int use_table_charset
+);
+uint spider_param_conn_recycle_mode(
+  THD *thd
+);
+uint spider_param_conn_recycle_strict(
+  THD *thd
+);
+bool spider_param_sync_trx_isolation(
+  THD *thd
+);
+bool spider_param_use_consistent_snapshot(
+  THD *thd
+);
+bool spider_param_internal_xa(
+  THD *thd
+);
+uint spider_param_internal_xa_snapshot(
+  THD *thd
+);
+uint spider_param_force_commit(
+  THD *thd
+);
+uint spider_param_xa_register_mode(
+  THD *thd
+);
+longlong spider_param_internal_offset(
+  THD *thd,
+  longlong internal_offset
+);
+longlong spider_param_internal_limit(
+  THD *thd,
+  longlong internal_limit
+);
+longlong spider_param_split_read(
+  THD *thd,
+  longlong split_read
+);
+double spider_param_semi_split_read(
+  THD *thd,
+  double semi_split_read
+);
+longlong spider_param_semi_split_read_limit(
+  THD *thd,
+  longlong semi_split_read_limit
+);
+int spider_param_init_sql_alloc_size(
+  THD *thd,
+  int init_sql_alloc_size
+);
+int spider_param_reset_sql_alloc(
+  THD *thd,
+  int reset_sql_alloc
+);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+longlong spider_param_hs_result_free_size(
+  THD *thd,
+  longlong hs_result_free_size
+);
+#endif
+int spider_param_multi_split_read(
+  THD *thd,
+  int multi_split_read
+);
+int spider_param_max_order(
+  THD *thd,
+  int max_order
+);
+int spider_param_semi_trx_isolation(
+  THD *thd
+);
+int spider_param_semi_table_lock(
+  THD *thd,
+  int semi_table_lock
+);
+int spider_param_semi_table_lock_connection(
+  THD *thd,
+  int semi_table_lock_connection
+);
+uint spider_param_block_size(
+  THD *thd
+);
+int spider_param_selupd_lock_mode(
+  THD *thd,
+  int selupd_lock_mode
+);
+bool spider_param_sync_autocommit(
+  THD *thd
+);
+bool spider_param_use_default_database(
+  THD *thd
+);
+int spider_param_internal_sql_log_off(
+  THD *thd
+);
+int spider_param_bulk_size(
+  THD *thd,
+  int bulk_size
+);
+int spider_param_bulk_update_mode(
+  THD *thd,
+  int bulk_update_mode
+);
+int spider_param_bulk_update_size(
+  THD *thd,
+  int bulk_update_size
+);
+int spider_param_buffer_size(
+  THD *thd,
+  int buffer_size
+);
+int spider_param_internal_optimize(
+  THD *thd,
+  int internal_optimize
+);
+int spider_param_internal_optimize_local(
+  THD *thd,
+  int internal_optimize_local
+);
+bool spider_param_use_flash_logs(
+  THD *thd
+);
+int spider_param_use_snapshot_with_flush_tables(
+  THD *thd
+);
+bool spider_param_use_all_conns_snapshot(
+  THD *thd
+);
+bool spider_param_lock_exchange(
+  THD *thd
+);
+bool spider_param_internal_unlock(
+  THD *thd
+);
+bool spider_param_semi_trx(
+  THD *thd
+);
+int spider_param_connect_timeout(
+  THD *thd,
+  int connect_timeout
+);
+int spider_param_net_read_timeout(
+  THD *thd,
+  int net_read_timeout
+);
+int spider_param_net_write_timeout(
+  THD *thd,
+  int net_write_timeout
+);
+int spider_param_quick_mode(
+  THD *thd,
+  int quick_mode
+);
+longlong spider_param_quick_page_size(
+  THD *thd,
+  longlong quick_page_size
+);
+longlong spider_param_quick_page_byte(
+  THD *thd,
+  longlong quick_page_byte
+);
+int spider_param_low_mem_read(
+  THD *thd,
+  int low_mem_read
+);
+int spider_param_select_column_mode(
+  THD *thd,
+  int select_column_mode
+);
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+int spider_param_bgs_mode(
+  THD *thd,
+  int bgs_mode
+);
+longlong spider_param_bgs_first_read(
+  THD *thd,
+  longlong bgs_first_read
+);
+longlong spider_param_bgs_second_read(
+  THD *thd,
+  longlong bgs_second_read
+);
+#endif
+longlong spider_param_first_read(
+  THD *thd,
+  longlong first_read
+);
+longlong spider_param_second_read(
+  THD *thd,
+  longlong second_read
+);
+double spider_param_crd_interval(
+  THD *thd,
+  double crd_interval
+);
+int spider_param_crd_mode(
+  THD *thd,
+  int crd_mode
+);
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+int spider_param_crd_sync(
+  THD *thd,
+  int crd_sync
+);
+#endif
+int spider_param_crd_type(
+  THD *thd,
+  int crd_type
+);
+double spider_param_crd_weight(
+  THD *thd,
+  double crd_weight
+);
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+int spider_param_crd_bg_mode(
+  THD *thd,
+  int crd_bg_mode
+);
+#endif
+double spider_param_sts_interval(
+  THD *thd,
+  double sts_interval
+);
+int spider_param_sts_mode(
+  THD *thd,
+  int sts_mode
+);
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+int spider_param_sts_sync(
+  THD *thd,
+  int sts_sync
+);
+#endif
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+int spider_param_sts_bg_mode(
+  THD *thd,
+  int sts_bg_mode
+);
+#endif
+double spider_param_ping_interval_at_trx_start(
+  THD *thd
+);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+double spider_param_hs_ping_interval(
+  THD *thd
+);
+#endif
+int spider_param_auto_increment_mode(
+  THD *thd,
+  int auto_increment_mode
+);
+bool spider_param_same_server_link(
+  THD *thd
+);
+bool spider_param_local_lock_table(
+  THD *thd
+);
+int spider_param_use_pushdown_udf(
+  THD *thd,
+  int use_pushdown_udf
+);
+int spider_param_direct_dup_insert(
+  THD *thd,
+  int direct_dup_insert
+);
+uint spider_param_udf_table_lock_mutex_count();
+uint spider_param_udf_table_mon_mutex_count();
+longlong spider_param_udf_ds_bulk_insert_rows(
+  THD *thd,
+  longlong udf_ds_bulk_insert_rows
+);
+int spider_param_udf_ds_table_loop_mode(
+  THD *thd,
+  int udf_ds_table_loop_mode
+);
+char *spider_param_remote_access_charset();
+int spider_param_remote_autocommit();
+char *spider_param_remote_time_zone();
+int spider_param_remote_sql_log_off();
+int spider_param_remote_trx_isolation();
+char *spider_param_remote_default_database();
+longlong spider_param_connect_retry_interval(
+  THD *thd
+);
+int spider_param_connect_retry_count(
+  THD *thd
+);
+char *spider_param_bka_engine(
+  THD *thd,
+  char *bka_engine
+);
+int spider_param_bka_mode(
+  THD *thd,
+  int bka_mode
+);
+int spider_param_udf_ct_bulk_insert_interval(
+  int udf_ct_bulk_insert_interval
+);
+longlong spider_param_udf_ct_bulk_insert_rows(
+  longlong udf_ct_bulk_insert_rows
+);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+uint spider_param_hs_r_conn_recycle_mode(
+  THD *thd
+);
+uint spider_param_hs_r_conn_recycle_strict(
+  THD *thd
+);
+uint spider_param_hs_w_conn_recycle_mode(
+  THD *thd
+);
+uint spider_param_hs_w_conn_recycle_strict(
+  THD *thd
+);
+int spider_param_use_hs_read(
+  THD *thd,
+  int use_hs_read
+);
+int spider_param_use_hs_write(
+  THD *thd,
+  int use_hs_write
+);
+#endif
+int spider_param_use_handler(
+  THD *thd,
+  int use_handler
+);
+int spider_param_error_read_mode(
+  THD *thd,
+  int error_read_mode
+);
+int spider_param_error_write_mode(
+  THD *thd,
+  int error_write_mode
+);
+int spider_param_skip_default_condition(
+  THD *thd,
+  int skip_default_condition
+);
+int spider_param_skip_parallel_search(
+  THD *thd,
+  int skip_parallel_search
+);
+longlong spider_param_direct_order_limit(
+  THD *thd,
+  longlong direct_order_limit
+);
+int spider_param_read_only_mode(
+  THD *thd,
+  int read_only_mode
+);
+#ifdef HA_CAN_BULK_ACCESS
+int spider_param_bulk_access_free(
+  int bulk_access_free
+);
+#endif
+#if MYSQL_VERSION_ID < 50500
+#else
+int spider_param_udf_ds_use_real_table(
+  THD *thd,
+  int udf_ds_use_real_table
+);
+#endif
+my_bool spider_param_general_log();
+my_bool spider_param_index_hint_pushdown(
+  THD *thd
+);
+uint spider_param_max_connections();
+uint spider_param_conn_wait_timeout();
+uint spider_param_internal_lock_wait_timeout();
+uint spider_param_log_result_errors();
+uint spider_param_log_result_error_with_sql();
+uint spider_param_internal_xa_id_type(
+  THD *thd
+);
+int spider_param_casual_read(
+  THD *thd,
+  int casual_read
+);
+my_bool spider_param_dry_access();
+int spider_param_delete_all_rows_type(
+  THD *thd,
+  int delete_all_rows_type
+);
+int spider_param_bka_table_name_type(
+  THD *thd,
+  int bka_table_name_type
+);
+int spider_param_use_cond_other_than_pk_for_update(
+  THD *thd
+);
+int spider_param_store_last_sts(
+  int store_last_sts
+);
+int spider_param_store_last_crd(
+  int store_last_crd
+);
+int spider_param_load_sts_at_startup(
+  int load_sts_at_startup
+);
+int spider_param_load_crd_at_startup(
+  int load_crd_at_startup
+);
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+uint spider_param_table_sts_thread_count();
+uint spider_param_table_crd_thread_count();
+#endif
+int spider_param_slave_trx_isolation();
+int spider_param_remote_wait_timeout(
+  THD *thd
+);
+int spider_param_wait_timeout(
+  THD *thd
+);
+bool spider_param_sync_sql_mode(
+  THD *thd
+);
+int spider_param_strict_group_by(
+  THD *thd,
+  int strict_group_by
+);
diff --git a/storage/spider/spd_ping_table.cc b/storage/spider/spd_ping_table.cc
new file mode 100644
index 00000000..f220a9d9
--- /dev/null
+++ b/storage/spider/spd_ping_table.cc
@@ -0,0 +1,1905 @@
+/* Copyright (C) 2009-2019 Kentoku Shiba
+   Copyright (C) 2019 MariaDB corp
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+#define MYSQL_SERVER 1
+#include <my_global.h>
+#include "mysql_version.h"
+#include "spd_environ.h"
+#if MYSQL_VERSION_ID < 50500
+#include "mysql_priv.h"
+#include <mysql/plugin.h>
+#else
+#include "sql_priv.h"
+#include "probes_mysql.h"
+#include "sql_class.h"
+#include "sql_partition.h"
+#include "sql_acl.h"
+#endif
+#include "spd_err.h"
+#include "spd_param.h"
+#include "spd_db_include.h"
+#include "spd_include.h"
+#include "ha_spider.h"
+#include "spd_db_conn.h"
+#include "spd_trx.h"
+#include "spd_conn.h"
+#include "spd_sys_table.h"
+#include "spd_table.h"
+#include "spd_ping_table.h"
+#include "spd_direct_sql.h"
+#include "spd_udf.h"
+#include "spd_malloc.h"
+
+extern bool volatile *spd_abort_loop;
+
+extern handlerton *spider_hton_ptr;
+
+#ifdef HAVE_PSI_INTERFACE
+extern PSI_mutex_key spd_key_mutex_mon_list_caller;
+extern PSI_mutex_key spd_key_mutex_mon_list_receptor;
+extern PSI_mutex_key spd_key_mutex_mon_list_monitor;
+extern PSI_mutex_key spd_key_mutex_mon_list_update_status;
+extern PSI_mutex_key spd_key_mutex_mon_table_cache;
+#endif
+
+HASH *spider_udf_table_mon_list_hash;
+uint spider_udf_table_mon_list_hash_id;
+const char *spider_udf_table_mon_list_hash_func_name;
+const char *spider_udf_table_mon_list_hash_file_name;
+ulong spider_udf_table_mon_list_hash_line_no;
+pthread_mutex_t *spider_udf_table_mon_mutexes;
+pthread_cond_t *spider_udf_table_mon_conds;
+
+pthread_mutex_t spider_mon_table_cache_mutex;
+DYNAMIC_ARRAY spider_mon_table_cache;
+uint spider_mon_table_cache_id;
+const char *spider_mon_table_cache_func_name;
+const char *spider_mon_table_cache_file_name;
+ulong spider_mon_table_cache_line_no;
+volatile ulonglong spider_mon_table_cache_version = 0;
+volatile ulonglong spider_mon_table_cache_version_req = 1;
+
+SPIDER_TABLE_MON_LIST *spider_get_ping_table_mon_list(
+  SPIDER_TRX *trx,
+  THD *thd,
+  spider_string *str,
+  uint conv_name_length,
+  int link_idx,
+  char *static_link_id,
+  uint static_link_id_length,
+  uint32 server_id,
+  bool need_lock,
+  int *error_num
+) {
+  uint mutex_hash;
+  SPIDER_TABLE_MON_LIST *table_mon_list;
+  MEM_ROOT mem_root;
+  ulonglong mon_table_cache_version;
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  my_hash_value_type hash_value;
+#endif
+  DBUG_ENTER("spider_get_ping_table_mon_list");
+  if (spider_mon_table_cache_version != spider_mon_table_cache_version_req)
+  {
+    SPD_INIT_ALLOC_ROOT(&mem_root, 4096, 0, MYF(MY_WME));
+    if ((*error_num = spider_init_ping_table_mon_cache(thd, &mem_root,
+      need_lock)))
+    {
+      free_root(&mem_root, MYF(0));
+      goto error;
+    }
+    free_root(&mem_root, MYF(0));
+  }
+
+  mutex_hash = spider_udf_calc_hash(str->c_ptr(),
+    spider_param_udf_table_mon_mutex_count());
+  DBUG_PRINT("info",("spider hash key=%s", str->c_ptr()));
+  DBUG_PRINT("info",("spider hash key length=%u", str->length()));
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  hash_value = my_calc_hash(
+    &spider_udf_table_mon_list_hash[mutex_hash],
+    (uchar*) str->c_ptr(), str->length());
+#endif
+  pthread_mutex_lock(&spider_udf_table_mon_mutexes[mutex_hash]);
+  mon_table_cache_version = (ulonglong) spider_mon_table_cache_version;
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  if (!(table_mon_list = (SPIDER_TABLE_MON_LIST *)
+    my_hash_search_using_hash_value(
+      &spider_udf_table_mon_list_hash[mutex_hash], hash_value,
+      (uchar*) str->c_ptr(), str->length())) ||
+      table_mon_list->mon_table_cache_version != mon_table_cache_version
+  )
+#else
+  if (!(table_mon_list = (SPIDER_TABLE_MON_LIST *) my_hash_search(
+    &spider_udf_table_mon_list_hash[mutex_hash],
+    (uchar*) str->c_ptr(), str->length())) ||
+    table_mon_list->mon_table_cache_version != mon_table_cache_version
+  )
+#endif
+  {
+    if (
+      table_mon_list &&
+      table_mon_list->mon_table_cache_version != mon_table_cache_version
+    )
+      spider_release_ping_table_mon_list_loop(mutex_hash, table_mon_list);
+
+    if (!(table_mon_list = spider_get_ping_table_tgt(thd, str->c_ptr(),
+      conv_name_length, link_idx, static_link_id, static_link_id_length,
+      server_id, str, need_lock, error_num)))
+    {
+      pthread_mutex_unlock(&spider_udf_table_mon_mutexes[mutex_hash]);
+      goto error;
+    }
+    table_mon_list->mutex_hash = mutex_hash;
+    table_mon_list->mon_table_cache_version = mon_table_cache_version;
+    uint old_elements =
+      spider_udf_table_mon_list_hash[mutex_hash].array.max_element;
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+    table_mon_list->key_hash_value = hash_value;
+#endif
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+    if (my_hash_insert_with_hash_value(
+      &spider_udf_table_mon_list_hash[mutex_hash],
+      hash_value, (uchar*) table_mon_list))
+#else
+    if (my_hash_insert(&spider_udf_table_mon_list_hash[mutex_hash],
+      (uchar*) table_mon_list))
+#endif
+    {
+      spider_ping_table_free_mon_list(table_mon_list);
+      *error_num = HA_ERR_OUT_OF_MEM;
+      my_error(HA_ERR_OUT_OF_MEM, MYF(0));
+      pthread_mutex_unlock(&spider_udf_table_mon_mutexes[mutex_hash]);
+      goto error;
+    }
+    if (spider_udf_table_mon_list_hash[mutex_hash].array.max_element >
+      old_elements)
+    {
+      spider_alloc_calc_mem(spider_current_trx,
+        spider_udf_table_mon_list_hash,
+        (spider_udf_table_mon_list_hash[mutex_hash].array.max_element -
+        old_elements) *
+        spider_udf_table_mon_list_hash[mutex_hash].array.size_of_element);
+    }
+  }
+  table_mon_list->use_count++;
+  DBUG_PRINT("info",("spider table_mon_list->use_count=%d",
+    table_mon_list->use_count));
+  pthread_mutex_unlock(&spider_udf_table_mon_mutexes[mutex_hash]);
+  DBUG_RETURN(table_mon_list);
+
+error:
+  DBUG_RETURN(NULL);
+}
+
+void spider_free_ping_table_mon_list(
+  SPIDER_TABLE_MON_LIST *table_mon_list
+) {
+  DBUG_ENTER("spider_free_ping_table_mon_list");
+  pthread_mutex_lock(&spider_udf_table_mon_mutexes[
+    table_mon_list->mutex_hash]);
+  table_mon_list->use_count--;
+  DBUG_PRINT("info",("spider table_mon_list->use_count=%d", table_mon_list->use_count));
+  if (!table_mon_list->use_count)
+    pthread_cond_broadcast(&spider_udf_table_mon_conds[
+      table_mon_list->mutex_hash]);
+  pthread_mutex_unlock(&spider_udf_table_mon_mutexes[
+    table_mon_list->mutex_hash]);
+  DBUG_VOID_RETURN;
+}
+
+void spider_release_ping_table_mon_list_loop(
+  uint mutex_hash,
+  SPIDER_TABLE_MON_LIST *table_mon_list
+) {
+  DBUG_ENTER("spider_release_ping_table_mon_list_loop");
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+  my_hash_delete_with_hash_value(&spider_udf_table_mon_list_hash[mutex_hash],
+    table_mon_list->key_hash_value, (uchar*) table_mon_list);
+#else
+  my_hash_delete(&spider_udf_table_mon_list_hash[mutex_hash],
+    (uchar*) table_mon_list);
+#endif
+  while (TRUE)
+  {
+    if (table_mon_list->use_count)
+      pthread_cond_wait(&spider_udf_table_mon_conds[mutex_hash],
+        &spider_udf_table_mon_mutexes[mutex_hash]);
+    else {
+      spider_ping_table_free_mon_list(table_mon_list);
+      break;
+    }
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_release_ping_table_mon_list(
+  const char *conv_name,
+  uint conv_name_length,
+  int link_idx
+) {
+  uint mutex_hash;
+  SPIDER_TABLE_MON_LIST *table_mon_list;
+  char link_idx_str[SPIDER_CONNECT_INFO_MAX_LEN + 1];
+  int link_idx_str_length;
+  DBUG_ENTER("spider_release_ping_table_mon_list");
+  DBUG_PRINT("info", ("spider conv_name=%s", conv_name));
+  DBUG_PRINT("info", ("spider conv_name_length=%u", conv_name_length));
+  DBUG_PRINT("info", ("spider link_idx=%d", link_idx));
+  link_idx_str_length = my_sprintf(link_idx_str, (link_idx_str, "%010d",
+    link_idx));
+  char *buf = (char *) my_alloca(conv_name_length + link_idx_str_length + 1);
+  if (!buf)
+  {
+    my_error(HA_ERR_OUT_OF_MEM, MYF(0));
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  spider_string conv_name_str(buf, conv_name_length + link_idx_str_length + 1,
+    system_charset_info);
+  conv_name_str.init_calc_mem(134);
+  conv_name_str.length(0);
+  conv_name_str.q_append(conv_name, conv_name_length);
+  conv_name_str.q_append(link_idx_str, link_idx_str_length);
+
+  mutex_hash = spider_udf_calc_hash(conv_name_str.c_ptr_safe(),
+    spider_param_udf_table_mon_mutex_count());
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  my_hash_value_type hash_value = my_calc_hash(
+    &spider_udf_table_mon_list_hash[mutex_hash],
+    (uchar*) conv_name_str.c_ptr(), conv_name_str.length());
+#endif
+  pthread_mutex_lock(&spider_udf_table_mon_mutexes[mutex_hash]);
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  if ((table_mon_list = (SPIDER_TABLE_MON_LIST *)
+    my_hash_search_using_hash_value(
+      &spider_udf_table_mon_list_hash[mutex_hash], hash_value,
+      (uchar*) conv_name_str.c_ptr(), conv_name_str.length())))
+#else
+  if ((table_mon_list = (SPIDER_TABLE_MON_LIST *) my_hash_search(
+    &spider_udf_table_mon_list_hash[mutex_hash],
+    (uchar*) conv_name_str.c_ptr(), conv_name_str.length())))
+#endif
+    spider_release_ping_table_mon_list_loop(mutex_hash, table_mon_list);
+  pthread_mutex_unlock(&spider_udf_table_mon_mutexes[mutex_hash]);
+  my_afree(buf);
+  DBUG_RETURN(0);
+}
+
+int spider_get_ping_table_mon(
+  THD *thd,
+  SPIDER_TABLE_MON_LIST *table_mon_list,
+  char *name,
+  uint name_length,
+  int link_idx,
+  uint32 server_id,
+  MEM_ROOT *mem_root,
+  bool need_lock
+) {
+  int error_num;
+  TABLE *table_link_mon = NULL;
+  SPIDER_Open_tables_backup open_tables_backup;
+  char table_key[MAX_KEY_LENGTH];
+  SPIDER_TABLE_MON *table_mon, *table_mon_prev = NULL;
+  SPIDER_SHARE *tmp_share;
+  char **tmp_connect_info, *tmp_ptr;
+  uint *tmp_connect_info_length;
+  long *tmp_long;
+  longlong *tmp_longlong;
+  int list_size = 0;
+  DBUG_ENTER("spider_get_ping_table_mon");
+
+  if (
+    !(table_link_mon = spider_open_sys_table(
+      thd, SPIDER_SYS_LINK_MON_TABLE_NAME_STR,
+      SPIDER_SYS_LINK_MON_TABLE_NAME_LEN, FALSE, &open_tables_backup,
+      need_lock, &error_num))
+  ) {
+    my_error(error_num, MYF(0));
+    goto error;
+  }
+  if (table_mon_list->share->static_link_ids[0])
+  {
+    spider_store_tables_name(table_link_mon, name, name_length);
+    spider_store_tables_link_idx_str(table_link_mon,
+      table_mon_list->share->static_link_ids[0],
+      table_mon_list->share->static_link_ids_lengths[0]);
+    if (!(error_num = spider_ping_table_cache_compare(table_link_mon, mem_root)))
+      goto create_table_mon;
+    if (error_num == HA_ERR_OUT_OF_MEM)
+      goto error;
+    if ((tmp_ptr = strstr(name, "#P#")))
+    {
+      *tmp_ptr = '\0';
+      spider_store_tables_name(table_link_mon, name, strlen(name));
+      *tmp_ptr = '#';
+      if (!(error_num = spider_ping_table_cache_compare(table_link_mon,
+        mem_root)))
+        goto create_table_mon;
+      if (error_num == HA_ERR_OUT_OF_MEM)
+        goto error;
+    }
+  }
+  spider_store_tables_name(table_link_mon, name, name_length);
+  spider_store_tables_link_idx(table_link_mon, link_idx);
+  if (!(error_num = spider_ping_table_cache_compare(table_link_mon, mem_root)))
+    goto create_table_mon;
+  if (error_num == HA_ERR_OUT_OF_MEM)
+    goto error;
+  if ((tmp_ptr = strstr(name, "#P#")))
+  {
+    *tmp_ptr = '\0';
+    spider_store_tables_name(table_link_mon, name, strlen(name));
+    *tmp_ptr = '#';
+    if (!(error_num = spider_ping_table_cache_compare(table_link_mon,
+      mem_root)))
+      goto create_table_mon;
+    if (error_num == HA_ERR_OUT_OF_MEM)
+      goto error;
+  }
+  error_num = HA_ERR_KEY_NOT_FOUND;
+  table_link_mon->file->print_error(error_num, MYF(0));
+  goto error;
+
+create_table_mon:
+  if ((error_num = spider_get_sys_table_by_idx(table_link_mon, table_key,
+    table_link_mon->s->primary_key, 3)))
+  {
+    table_link_mon->file->print_error(error_num, MYF(0));
+    goto error;
+  }
+
+  do {
+    if (!(table_mon = (SPIDER_TABLE_MON *)
+      spider_bulk_malloc(spider_current_trx, 35, MYF(MY_WME | MY_ZEROFILL),
+        &table_mon, (uint) (sizeof(SPIDER_TABLE_MON)),
+        &tmp_share, (uint) (sizeof(SPIDER_SHARE)),
+        &tmp_connect_info,
+          (uint) (sizeof(char *) * SPIDER_TMP_SHARE_CHAR_PTR_COUNT),
+        &tmp_connect_info_length,
+          (uint) (sizeof(uint) * SPIDER_TMP_SHARE_UINT_COUNT),
+        &tmp_long, (uint) (sizeof(long) * SPIDER_TMP_SHARE_LONG_COUNT),
+        &tmp_longlong,
+          (uint) (sizeof(longlong) * SPIDER_TMP_SHARE_LONGLONG_COUNT),
+        NullS))
+    ) {
+      spider_sys_index_end(table_link_mon);
+      error_num = HA_ERR_OUT_OF_MEM;
+      my_error(HA_ERR_OUT_OF_MEM, MYF(0));
+      goto error;
+    }
+    spider_set_tmp_share_pointer(tmp_share, tmp_connect_info,
+      tmp_connect_info_length, tmp_long, tmp_longlong);
+    tmp_share->link_statuses[0] = -1;
+    table_mon->share = tmp_share;
+    table_mon->parent = table_mon_list;
+    if (table_mon_prev)
+      table_mon_prev->next = table_mon;
+    else
+      table_mon_list->first = table_mon;
+    table_mon_prev = table_mon;
+    if (
+      (error_num = spider_get_sys_link_mon_server_id(
+        table_link_mon, &table_mon->server_id, mem_root)) ||
+      (error_num = spider_get_sys_link_mon_connect_info(
+        table_link_mon, tmp_share, 0, mem_root))
+    ) {
+      table_link_mon->file->print_error(error_num, MYF(0));
+      spider_sys_index_end(table_link_mon);
+      goto error;
+    }
+    if (
+      (error_num = spider_set_connect_info_default(
+        tmp_share,
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+        NULL,
+        NULL,
+#endif
+        NULL
+      )) ||
+      (error_num = spider_set_connect_info_default_dbtable(
+        tmp_share, name, name_length
+      )) ||
+      (error_num = spider_create_conn_keys(tmp_share))
+    ) {
+      spider_sys_index_end(table_link_mon);
+      goto error;
+    }
+    DBUG_PRINT("info",("spider table_mon->server_id=%u",
+      table_mon->server_id));
+    DBUG_PRINT("info",("spider server_id=%u", server_id));
+    if (table_mon->server_id == server_id)
+      table_mon_list->current = table_mon;
+    list_size++;
+    error_num = spider_sys_index_next_same(table_link_mon, table_key);
+  } while (error_num == 0);
+  spider_sys_index_end(table_link_mon);
+  spider_close_sys_table(thd, table_link_mon,
+    &open_tables_backup, need_lock);
+  table_link_mon = NULL;
+  table_mon_list->list_size = list_size;
+
+  if (!table_mon_list->current)
+  {
+    error_num = ER_SPIDER_UDF_PING_TABLE_NO_SERVER_ID_NUM;
+    my_printf_error(ER_SPIDER_UDF_PING_TABLE_NO_SERVER_ID_NUM,
+      ER_SPIDER_UDF_PING_TABLE_NO_SERVER_ID_STR, MYF(0));
+    goto error;
+  }
+
+  DBUG_RETURN(0);
+
+error:
+  if (table_link_mon)
+    spider_close_sys_table(thd, table_link_mon,
+      &open_tables_backup, need_lock);
+  table_mon = table_mon_list->first;
+  table_mon_list->first = NULL;
+  table_mon_list->current = NULL;
+  while (table_mon)
+  {
+    spider_free_tmp_share_alloc(table_mon->share);
+    table_mon_prev = table_mon->next;
+    spider_free(spider_current_trx, table_mon, MYF(0));
+    table_mon = table_mon_prev;
+  }
+  DBUG_RETURN(error_num);
+}
+
+SPIDER_TABLE_MON_LIST *spider_get_ping_table_tgt(
+  THD *thd,
+  char *name,
+  uint name_length,
+  int link_idx,
+  char *static_link_id,
+  uint static_link_id_length,
+  uint32 server_id,
+  spider_string *str,
+  bool need_lock,
+  int *error_num
+) {
+  TABLE *table_tables = NULL;
+  SPIDER_Open_tables_backup open_tables_backup;
+  char table_key[MAX_KEY_LENGTH];
+
+  SPIDER_TABLE_MON_LIST *table_mon_list = NULL;
+  SPIDER_SHARE *tmp_share;
+  char **tmp_connect_info;
+  uint *tmp_connect_info_length;
+  long *tmp_long;
+  longlong *tmp_longlong;
+  char *key_str;
+  MEM_ROOT mem_root;
+  DBUG_ENTER("spider_get_ping_table_tgt");
+
+  SPD_INIT_ALLOC_ROOT(&mem_root, 4096, 0, MYF(MY_WME));
+  if (!(table_mon_list = (SPIDER_TABLE_MON_LIST *)
+    spider_bulk_malloc(spider_current_trx, 36, MYF(MY_WME | MY_ZEROFILL),
+      &table_mon_list, (uint) (sizeof(SPIDER_TABLE_MON_LIST)),
+      &tmp_share, (uint) (sizeof(SPIDER_SHARE)),
+      &tmp_connect_info,
+        (uint) (sizeof(char *) * SPIDER_TMP_SHARE_CHAR_PTR_COUNT),
+      &tmp_connect_info_length,
+        (uint) (sizeof(uint) * SPIDER_TMP_SHARE_UINT_COUNT),
+      &tmp_long,
+        (uint) (sizeof(long) * SPIDER_TMP_SHARE_LONG_COUNT),
+      &tmp_longlong,
+        (uint) (sizeof(longlong) * SPIDER_TMP_SHARE_LONGLONG_COUNT),
+      &key_str, (uint) (str->length() + 1),
+      NullS))
+  ) {
+    my_error(HA_ERR_OUT_OF_MEM, MYF(0));
+    goto error;
+  }
+  spider_set_tmp_share_pointer(tmp_share, tmp_connect_info,
+    tmp_connect_info_length, tmp_long, tmp_longlong);
+  table_mon_list->share = tmp_share;
+  table_mon_list->key = key_str;
+  table_mon_list->key_length = str->length();
+  memcpy(key_str, str->ptr(), table_mon_list->key_length);
+  tmp_share->access_charset = thd->variables.character_set_client;
+
+  if (
+    !(table_tables = spider_open_sys_table(
+      thd, SPIDER_SYS_TABLES_TABLE_NAME_STR,
+      SPIDER_SYS_TABLES_TABLE_NAME_LEN, FALSE, &open_tables_backup, need_lock,
+      error_num))
+  ) {
+    my_error(*error_num, MYF(0));
+    goto error;
+  }
+  spider_store_tables_name(table_tables, name, name_length);
+  if (static_link_id)
+  {
+    spider_store_tables_static_link_id(table_tables,
+      static_link_id, static_link_id_length);
+    if (
+      (*error_num = spider_get_sys_table_by_idx(table_tables, table_key, 2,
+        SPIDER_SYS_TABLES_UIDX1_COL_CNT)) ||
+      (*error_num = spider_get_sys_tables_link_idx(
+        table_tables, &link_idx, &mem_root))
+    ) {
+      table_tables->file->print_error(*error_num, MYF(0));
+      goto error;
+    }
+  } else {
+    spider_store_tables_link_idx(table_tables, link_idx);
+    if (
+      (*error_num = spider_check_sys_table(table_tables, table_key))
+    ) {
+      table_tables->file->print_error(*error_num, MYF(0));
+      goto error;
+    }
+  }
+  if (
+    (*error_num = spider_get_sys_tables_connect_info(
+      table_tables, tmp_share, 0, &mem_root)) ||
+    (*error_num = spider_get_sys_tables_link_status(
+      table_tables, tmp_share, 0, &mem_root))
+  ) {
+    table_tables->file->print_error(*error_num, MYF(0));
+    goto error;
+  }
+  spider_close_sys_table(thd, table_tables,
+    &open_tables_backup, need_lock);
+  table_tables = NULL;
+
+  if (
+    (*error_num = spider_set_connect_info_default(
+      tmp_share,
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+      NULL,
+      NULL,
+#endif
+      NULL
+    )) ||
+    (*error_num = spider_set_connect_info_default_dbtable(
+      tmp_share, name, name_length
+    )) ||
+    (*error_num = spider_create_conn_keys(tmp_share)) ||
+/*
+    (*error_num = spider_db_create_table_names_str(tmp_share)) ||
+*/
+    (*error_num = spider_get_ping_table_mon(
+      thd, table_mon_list, name, name_length, link_idx, server_id, &mem_root,
+      need_lock))
+  )
+    goto error;
+
+  if (tmp_share->link_statuses[0] == SPIDER_LINK_STATUS_NG)
+    table_mon_list->mon_status = SPIDER_LINK_MON_NG;
+
+#if MYSQL_VERSION_ID < 50500
+  if (pthread_mutex_init(&table_mon_list->caller_mutex, MY_MUTEX_INIT_FAST))
+#else
+  if (mysql_mutex_init(spd_key_mutex_mon_list_caller,
+    &table_mon_list->caller_mutex, MY_MUTEX_INIT_FAST))
+#endif
+  {
+    *error_num = HA_ERR_OUT_OF_MEM;
+    goto error_caller_mutex_init;
+  }
+#if MYSQL_VERSION_ID < 50500
+  if (pthread_mutex_init(&table_mon_list->receptor_mutex, MY_MUTEX_INIT_FAST))
+#else
+  if (mysql_mutex_init(spd_key_mutex_mon_list_receptor,
+    &table_mon_list->receptor_mutex, MY_MUTEX_INIT_FAST))
+#endif
+  {
+    *error_num = HA_ERR_OUT_OF_MEM;
+    goto error_receptor_mutex_init;
+  }
+#if MYSQL_VERSION_ID < 50500
+  if (pthread_mutex_init(&table_mon_list->monitor_mutex, MY_MUTEX_INIT_FAST))
+#else
+  if (mysql_mutex_init(spd_key_mutex_mon_list_monitor,
+    &table_mon_list->monitor_mutex, MY_MUTEX_INIT_FAST))
+#endif
+  {
+    *error_num = HA_ERR_OUT_OF_MEM;
+    goto error_monitor_mutex_init;
+  }
+#if MYSQL_VERSION_ID < 50500
+  if (pthread_mutex_init(&table_mon_list->update_status_mutex,
+    MY_MUTEX_INIT_FAST))
+#else
+  if (mysql_mutex_init(spd_key_mutex_mon_list_update_status,
+    &table_mon_list->update_status_mutex, MY_MUTEX_INIT_FAST))
+#endif
+  {
+    *error_num = HA_ERR_OUT_OF_MEM;
+    goto error_update_status_mutex_init;
+  }
+
+  free_root(&mem_root, MYF(0));
+  DBUG_RETURN(table_mon_list);
+
+error_update_status_mutex_init:
+  pthread_mutex_destroy(&table_mon_list->monitor_mutex);
+error_monitor_mutex_init:
+  pthread_mutex_destroy(&table_mon_list->receptor_mutex);
+error_receptor_mutex_init:
+  pthread_mutex_destroy(&table_mon_list->caller_mutex);
+error_caller_mutex_init:
+error:
+  if (table_tables)
+    spider_close_sys_table(thd, table_tables,
+      &open_tables_backup, need_lock);
+  free_root(&mem_root, MYF(0));
+  if (table_mon_list)
+  {
+    spider_free_tmp_share_alloc(table_mon_list->share);
+    spider_free(spider_current_trx, table_mon_list, MYF(0));
+  }
+  DBUG_RETURN(NULL);
+}
+
+SPIDER_CONN *spider_get_ping_table_tgt_conn(
+  SPIDER_TRX *trx,
+  SPIDER_SHARE *share,
+  int *error_num
+) {
+  SPIDER_CONN *conn;
+  DBUG_ENTER("spider_get_ping_table_tgt_conn");
+  if (
+    !(conn = spider_get_conn(
+      share, 0, share->conn_keys[0], trx, NULL, FALSE, FALSE,
+      SPIDER_CONN_KIND_MYSQL, error_num))
+  ) {
+    my_error(ER_CONNECT_TO_FOREIGN_DATA_SOURCE, MYF(0),
+      share->server_names[0]);
+    *error_num = ER_CONNECT_TO_FOREIGN_DATA_SOURCE;
+    goto error;
+  }
+#ifndef DBUG_OFF
+  DBUG_PRINT("info",("spider conn->thd=%p", conn->thd));
+  if (conn->thd)
+  {
+    DBUG_PRINT("info",("spider query_id=%lld", conn->thd->query_id));
+  }
+#endif
+  conn->error_mode = 0;
+  DBUG_RETURN(conn);
+
+error:
+  DBUG_RETURN(NULL);
+}
+
+int spider_get_ping_table_gtid_pos(
+  SPIDER_TRX *trx,
+  THD *thd,
+  spider_string *str,
+  uint conv_name_length,
+  int failed_link_idx,
+  uint32 server_id,
+  bool need_lock,
+  spider_string *tmp_str
+) {
+  int error_num, source_link_idx, need_mon;
+  char table_key[MAX_KEY_LENGTH];
+  TABLE *table_tables, *table_gtid_pos;
+  SPIDER_Open_tables_backup open_tables_backup_tables;
+#ifdef SPIDER_REQUIRE_DEFINE_FOR_SECONDARY_OPEN_TABLES_BACKUP
+  SPIDER_Open_tables_backup open_tables_backup_gtid_pos;
+#endif
+  MEM_ROOT mem_root;
+  long link_status;
+  long monitoring_binlog_pos_at_failing;
+  SPIDER_TABLE_MON_LIST *table_mon_list;
+  SPIDER_CONN *ping_conn = NULL;
+  char *static_link_id;
+  uint static_link_id_length;
+  DBUG_ENTER("spider_get_ping_table_gtid_pos");
+
+  /*
+    select * from
+      mysql.spider_tables
+    where
+      db_name = setted db_name and
+      table_name = setted table_name
+  */
+#ifdef SPIDER_REQUIRE_DEFINE_FOR_SECONDARY_OPEN_TABLES_BACKUP
+  if (
+    !(table_tables = spider_open_sys_table(
+      thd, SPIDER_SYS_TABLES_TABLE_NAME_STR,
+      SPIDER_SYS_TABLES_TABLE_NAME_LEN, FALSE, &open_tables_backup_tables,
+      need_lock, &error_num))
+  )
+    goto error_open_table_tables;
+
+  if (
+    !(table_gtid_pos = spider_open_sys_table(
+      thd, SPIDER_SYS_POS_FOR_RECOVERY_TABLE_NAME_STR,
+      SPIDER_SYS_POS_FOR_RECOVERY_TABLE_NAME_LEN, TRUE,
+      &open_tables_backup_gtid_pos, need_lock, &error_num))
+  )
+    goto error_open_table_gtid_pos;
+#else
+  TABLE_LIST tables_tables;
+  TABLE_LIST tables_gtid_pos;
+  TABLE_LIST *tables = &tables_tables;
+  LEX_CSTRING db_name =
+  {
+    "mysql",
+    sizeof("mysql") - 1
+  };
+  LEX_CSTRING tbl_name_tables =
+  {
+    SPIDER_SYS_TABLES_TABLE_NAME_STR,
+    SPIDER_SYS_TABLES_TABLE_NAME_LEN
+  };
+  LEX_CSTRING tbl_name_gtid_pos =
+  {
+    SPIDER_SYS_POS_FOR_RECOVERY_TABLE_NAME_STR,
+    SPIDER_SYS_POS_FOR_RECOVERY_TABLE_NAME_LEN
+  };
+  tables_tables.init_one_table(&db_name, &tbl_name_tables, 0, TL_READ);
+  tables_gtid_pos.init_one_table(&db_name, &tbl_name_gtid_pos, 0, TL_READ);
+  MDL_REQUEST_INIT(&tables_tables.mdl_request, MDL_key::TABLE,
+    SPIDER_TABLE_LIST_db_str(&tables_tables),
+    SPIDER_TABLE_LIST_table_name_str(&tables_tables),
+    MDL_SHARED_READ, MDL_TRANSACTION);
+  MDL_REQUEST_INIT(&tables_gtid_pos.mdl_request, MDL_key::TABLE,
+    SPIDER_TABLE_LIST_db_str(&tables_gtid_pos),
+    SPIDER_TABLE_LIST_table_name_str(&tables_gtid_pos),
+    MDL_SHARED_READ, MDL_TRANSACTION);
+  tables_tables.next_global = &tables_gtid_pos;
+  if (spider_sys_open_and_lock_tables(thd, &tables,
+    &open_tables_backup_tables))
+  {
+    error_num = my_errno;
+    goto error_open_table_tables;
+  }
+  table_tables = tables_tables.table;
+  table_gtid_pos = tables_gtid_pos.table;
+#endif
+
+  table_tables->use_all_columns();
+  table_gtid_pos->use_all_columns();
+  spider_store_tables_name(table_tables, str->ptr(), conv_name_length);
+  spider_store_tables_name(table_gtid_pos, str->ptr(), conv_name_length);
+  spider_store_binlog_pos_failed_link_idx(table_gtid_pos, failed_link_idx);
+  if ((error_num = spider_get_sys_table_by_idx(table_tables, table_key, 0,
+    SPIDER_SYS_TABLES_PK_COL_CNT - 1)))
+  {
+    if (error_num == HA_ERR_KEY_NOT_FOUND || error_num == HA_ERR_END_OF_FILE)
+    {
+      error_num = 0;
+    }
+    goto error_get_sys_table_by_idx;
+  }
+
+  SPD_INIT_ALLOC_ROOT(&mem_root, 4096, 0, MYF(MY_WME));
+  do {
+    if (
+      (error_num = spider_get_sys_tables_link_status(table_tables,
+        &link_status, &mem_root)) ||
+      (error_num = spider_get_sys_tables_static_link_id(table_tables,
+        &static_link_id, &static_link_id_length, &mem_root)) ||
+      (error_num = spider_get_sys_tables_monitoring_binlog_pos_at_failing(
+        table_tables, &monitoring_binlog_pos_at_failing, &mem_root))
+    ) {
+      goto error_get_sys_tables_link_status;
+    }
+
+    if (link_status == 1 && monitoring_binlog_pos_at_failing > 0)
+    {
+      if ((error_num = spider_get_sys_tables_link_idx(table_tables,
+        &source_link_idx, &mem_root)))
+      {
+        goto error_get_sys_tables_link_idx;
+      }
+      if (
+        (table_mon_list = spider_get_ping_table_mon_list(
+          trx,
+          thd,
+          str,
+          conv_name_length,
+          source_link_idx,
+          static_link_id,
+          static_link_id_length,
+          server_id,
+          need_lock,
+          &error_num
+        ))
+      ) {
+        SPIDER_DB_RESULT *res1 = NULL;
+        SPIDER_DB_RESULT *res2 = NULL;
+        if (
+          (ping_conn = spider_get_ping_table_tgt_conn(trx,
+            table_mon_list->share, &error_num
+          )) &&
+          !(error_num = ping_conn->db_conn->show_master_status(
+            trx, table_mon_list->share, 0, &need_mon, table_gtid_pos, tmp_str,
+            monitoring_binlog_pos_at_failing == 1 ? 0 : 1, &res1, &res2))
+        ) {
+          spider_store_binlog_pos_source_link_idx(
+            table_gtid_pos, source_link_idx);
+          spider_insert_sys_table(table_gtid_pos);
+        }
+        if (res1)
+        {
+          res1->free_result();
+          delete res1;
+        }
+        if (res2)
+        {
+          res2->free_result();
+          delete res2;
+        }
+        spider_free_ping_table_mon_list(table_mon_list);
+      }
+    }
+
+    error_num = spider_sys_index_next_same(table_tables, table_key);
+  } while (error_num == 0);
+  free_root(&mem_root, MYF(0));
+
+  if ((error_num = spider_sys_index_end(table_tables)))
+  {
+    goto error_sys_index_end;
+  }
+#ifdef SPIDER_REQUIRE_DEFINE_FOR_SECONDARY_OPEN_TABLES_BACKUP
+  spider_close_sys_table(thd, table_gtid_pos,
+    &open_tables_backup_gtid_pos, need_lock);
+#endif
+  spider_close_sys_table(thd, table_tables, &open_tables_backup_tables,
+    need_lock);
+
+  DBUG_RETURN(0);
+
+error_get_sys_tables_link_idx:
+error_get_sys_tables_link_status:
+  free_root(&mem_root, MYF(0));
+  spider_sys_index_end(table_tables);
+error_sys_index_end:
+error_get_sys_table_by_idx:
+#ifdef SPIDER_REQUIRE_DEFINE_FOR_SECONDARY_OPEN_TABLES_BACKUP
+  spider_close_sys_table(thd, table_gtid_pos,
+    &open_tables_backup_gtid_pos,
+    need_lock);
+error_open_table_gtid_pos:
+#endif
+  spider_close_sys_table(thd, table_tables, &open_tables_backup_tables,
+    need_lock);
+error_open_table_tables:
+  DBUG_RETURN(error_num);
+}
+
+int spider_init_ping_table_mon_cache(
+  THD *thd,
+  MEM_ROOT *mem_root,
+  bool need_lock
+) {
+  int error_num, same;
+  uint old_elements;
+  TABLE *table_link_mon = NULL;
+  SPIDER_Open_tables_backup open_tables_backup;
+  SPIDER_MON_KEY mon_key;
+  DBUG_ENTER("spider_init_ping_table_mon_cache");
+
+  if (
+    !(table_link_mon = spider_open_sys_table(
+      thd, SPIDER_SYS_LINK_MON_TABLE_NAME_STR,
+      SPIDER_SYS_LINK_MON_TABLE_NAME_LEN, FALSE, &open_tables_backup,
+      need_lock, &error_num))
+  ) {
+    my_error(error_num, MYF(0));
+    goto error_open_sys_table;
+  }
+
+  pthread_mutex_lock(&spider_mon_table_cache_mutex);
+  if (spider_mon_table_cache_version != spider_mon_table_cache_version_req)
+  {
+    /* reset */
+    spider_mon_table_cache.elements = 0;
+
+    if ((error_num = spider_sys_index_first(table_link_mon,
+      table_link_mon->s->primary_key)))
+    {
+      if (error_num != HA_ERR_KEY_NOT_FOUND && error_num != HA_ERR_END_OF_FILE)
+      {
+        table_link_mon->file->print_error(error_num, MYF(0));
+        goto error_sys_index_first;
+      }
+    }
+
+    if (!error_num)
+    {
+      mon_key.db_name_length = SPIDER_SYS_LINK_MON_TABLE_DB_NAME_SIZE + 1;
+      mon_key.table_name_length = SPIDER_SYS_LINK_MON_TABLE_TABLE_NAME_SIZE + 1;
+      mon_key.link_id_length = SPIDER_SYS_LINK_MON_TABLE_LINK_ID_SIZE + 1;
+      do {
+        if ((error_num = spider_get_sys_link_mon_key(table_link_mon, &mon_key,
+          mem_root, &same)))
+          goto error_get_sys_link_mon_key;
+
+        if (!same)
+        {
+          mon_key.sort = spider_calc_for_sort(3, mon_key.db_name,
+            mon_key.table_name, mon_key.link_id);
+          old_elements = spider_mon_table_cache.max_element;
+          if (push_dynamic(&spider_mon_table_cache, (uchar *) &mon_key))
+          {
+            error_num = HA_ERR_OUT_OF_MEM;
+            goto error_push_dynamic;
+          }
+          if (spider_mon_table_cache.max_element != old_elements)
+          {
+            spider_free_mem_calc(spider_current_trx,
+              spider_mon_table_cache_id,
+              old_elements *
+              spider_mon_table_cache.size_of_element);
+            spider_alloc_calc_mem(spider_current_trx,
+              spider_mon_table_cache,
+              spider_mon_table_cache.max_element *
+              spider_mon_table_cache.size_of_element);
+          }
+        }
+
+        if ((error_num = spider_sys_index_next(table_link_mon)))
+        {
+          if (
+            error_num != HA_ERR_KEY_NOT_FOUND &&
+            error_num != HA_ERR_END_OF_FILE
+          ) {
+            table_link_mon->file->print_error(error_num, MYF(0));
+            goto error_sys_index_next;
+          }
+        }
+      } while (!error_num);
+      spider_sys_index_end(table_link_mon);
+    }
+    my_qsort(
+      (uchar *) dynamic_element(&spider_mon_table_cache, 0, SPIDER_MON_KEY *),
+      spider_mon_table_cache.elements, sizeof(SPIDER_MON_KEY),
+      (qsort_cmp) spider_compare_for_sort);
+    old_elements = spider_mon_table_cache.max_element;
+    freeze_size(&spider_mon_table_cache);
+    if (spider_mon_table_cache.max_element != old_elements)
+    {
+      spider_free_mem_calc(spider_current_trx,
+        spider_mon_table_cache_id,
+        old_elements *
+        spider_mon_table_cache.size_of_element);
+      spider_alloc_calc_mem(spider_current_trx,
+        spider_mon_table_cache,
+        spider_mon_table_cache.max_element *
+        spider_mon_table_cache.size_of_element);
+    }
+    spider_mon_table_cache_version = spider_mon_table_cache_version_req;
+  }
+  pthread_mutex_unlock(&spider_mon_table_cache_mutex);
+  spider_close_sys_table(thd, table_link_mon, &open_tables_backup, need_lock);
+  DBUG_RETURN(0);
+
+error_push_dynamic:
+error_get_sys_link_mon_key:
+error_sys_index_next:
+  spider_sys_index_end(table_link_mon);
+error_sys_index_first:
+  pthread_mutex_unlock(&spider_mon_table_cache_mutex);
+  spider_close_sys_table(thd, table_link_mon, &open_tables_backup, need_lock);
+error_open_sys_table:
+  DBUG_RETURN(error_num);
+}
+
+int spider_ping_table_cache_compare(
+  TABLE *table,
+  MEM_ROOT *mem_root
+) {
+  uint32 roop_count;
+  SPIDER_MON_KEY *mon_key;
+  char *db_name, *table_name, *link_id;
+  DBUG_ENTER("spider_ping_table_cache_compare");
+
+  if (
+    !(db_name = get_field(mem_root, table->field[0])) ||
+    !(table_name = get_field(mem_root, table->field[1])) ||
+    !(link_id = get_field(mem_root, table->field[2]))
+  )
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  DBUG_PRINT("info", ("spider db_name=%s", db_name));
+  DBUG_PRINT("info", ("spider table_name=%s", table_name));
+  DBUG_PRINT("info", ("spider link_id=%s", link_id));
+
+  pthread_mutex_lock(&spider_mon_table_cache_mutex);
+  for (roop_count = 0; roop_count < spider_mon_table_cache.elements;
+    roop_count++)
+  {
+    mon_key = dynamic_element(&spider_mon_table_cache, roop_count,
+      SPIDER_MON_KEY *);
+    DBUG_PRINT("info", ("spider roop_count=%d", roop_count));
+    DBUG_PRINT("info", ("spider mon_key.db_name=%s", mon_key->db_name));
+    DBUG_PRINT("info", ("spider mon_key.table_name=%s", mon_key->table_name));
+    DBUG_PRINT("info", ("spider mon_key.link_id=%s", mon_key->link_id));
+    if (
+      !wild_case_compare(system_charset_info, db_name, mon_key->db_name) &&
+      !wild_case_compare(system_charset_info, table_name,
+        mon_key->table_name) &&
+      !wild_case_compare(system_charset_info, link_id, mon_key->link_id)
+    ) {
+      spider_store_db_and_table_name(
+        table,
+        mon_key->db_name,
+        mon_key->db_name_length,
+        mon_key->table_name,
+        mon_key->table_name_length
+      );
+      spider_store_tables_link_idx_str(
+        table,
+        mon_key->link_id,
+        mon_key->link_id_length
+      );
+      pthread_mutex_unlock(&spider_mon_table_cache_mutex);
+      DBUG_PRINT("info", ("spider found"));
+      DBUG_RETURN(0);
+    }
+  }
+  pthread_mutex_unlock(&spider_mon_table_cache_mutex);
+  DBUG_PRINT("info", ("spider not found"));
+  DBUG_RETURN(1);
+}
+
+long long spider_ping_table_body(
+  UDF_INIT *initid,
+  UDF_ARGS *args,
+  char *is_null,
+  char *error
+) {
+  int error_num = 0, link_idx, flags, full_mon_count, current_mon_count,
+    success_count, fault_count, tmp_error_num = 0;
+  uint32 first_sid, server_id;
+  longlong limit, tmp_sid = -1;
+  SPIDER_MON_TABLE_RESULT *mon_table_result =
+    (SPIDER_MON_TABLE_RESULT *) initid->ptr;
+  SPIDER_TRX *trx = mon_table_result->trx;
+  THD *thd = trx->thd;
+  SPIDER_CONN *ping_conn = NULL, *mon_conn;
+  char *where_clause;
+  SPIDER_TABLE_MON_LIST *table_mon_list;
+  SPIDER_TABLE_MON *table_mon;
+
+  char buf[MAX_FIELD_WIDTH], buf2[MAX_FIELD_WIDTH];
+  spider_string conv_name(buf, sizeof(buf), system_charset_info);
+  spider_string tmp_str(buf2, sizeof(buf2), system_charset_info);
+  int conv_name_length;
+  char link_idx_str[SPIDER_CONNECT_INFO_MAX_LEN + 1];
+  int link_idx_str_length;
+  char *static_link_id = NULL;
+  int static_link_id_length = 0;
+  bool get_lock = FALSE, status_changed_to_ng = FALSE;
+  DBUG_ENTER("spider_ping_table_body");
+  conv_name.init_calc_mem(135);
+  tmp_str.init_calc_mem(247);
+  conv_name.length(0);
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100002
+  server_id = global_system_variables.server_id;
+#else
+  server_id = thd->server_id;
+#endif
+  if (
+    thd->open_tables != 0 ||
+    thd->handler_tables_hash.records != 0 ||
+    thd->derived_tables != 0 ||
+    thd->lock != 0 ||
+#if MYSQL_VERSION_ID < 50500
+    thd->locked_tables != 0 ||
+    thd->prelocked_mode != NON_PRELOCKED
+#else
+    thd->locked_tables_list.locked_tables() ||
+    thd->locked_tables_mode != LTM_NONE
+#endif
+  ) {
+    if (thd->open_tables != 0)
+    {
+      my_printf_error(ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_NUM,
+        ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_STR_WITH_PTR, MYF(0),
+        "thd->open_tables", thd->open_tables);
+    } else if (thd->handler_tables_hash.records != 0)
+    {
+      my_printf_error(ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_NUM,
+        ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_STR_WITH_NUM, MYF(0),
+        "thd->handler_tables_hash.records",
+        (longlong) thd->handler_tables_hash.records);
+    } else if (thd->derived_tables != 0)
+    {
+      my_printf_error(ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_NUM,
+        ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_STR_WITH_PTR, MYF(0),
+        "thd->derived_tables", thd->derived_tables);
+    } else if (thd->lock != 0)
+    {
+      my_printf_error(ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_NUM,
+        ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_STR_WITH_PTR, MYF(0),
+        "thd->lock", thd->lock);
+#if MYSQL_VERSION_ID < 50500
+    } else if (thd->locked_tables != 0)
+    {
+      my_printf_error(ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_NUM,
+        ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_STR_WITH_PTR, MYF(0),
+        "thd->locked_tables", thd->locked_tables);
+    } else if (thd->prelocked_mode != NON_PRELOCKED)
+    {
+      my_printf_error(ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_NUM,
+        ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_STR_WITH_NUM, MYF(0),
+        "thd->prelocked_mode", (longlong) thd->prelocked_mode);
+#else
+    } else if (thd->locked_tables_list.locked_tables())
+    {
+      my_printf_error(ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_NUM,
+        ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_STR_WITH_PTR, MYF(0),
+        "thd->locked_tables_list.locked_tables()",
+        thd->locked_tables_list.locked_tables());
+    } else if (thd->locked_tables_mode != LTM_NONE)
+    {
+      my_printf_error(ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_NUM,
+        ER_SPIDER_UDF_CANT_USE_IF_OPEN_TABLE_STR_WITH_NUM, MYF(0),
+        "thd->locked_tables_mode", (longlong) thd->locked_tables_mode);
+#endif
+    }
+    goto error;
+  }
+
+  if (
+    args->lengths[0] > SPIDER_CONNECT_INFO_MAX_LEN
+  ) {
+    my_printf_error(ER_SPIDER_UDF_PARAM_TOO_LONG_NUM,
+      ER_SPIDER_UDF_PARAM_TOO_LONG_STR, MYF(0), "table name");
+    goto error;
+  }
+  if (
+    args->lengths[0] == 0
+  ) {
+    my_printf_error(ER_SPIDER_UDF_PARAM_REQIRED_NUM,
+      ER_SPIDER_UDF_PARAM_REQIRED_STR, MYF(0), "table name");
+    goto error;
+  }
+  if (args->arg_type[1] == STRING_RESULT)
+  {
+    if (
+      !args->args[1]
+    ) {
+      my_printf_error(ER_SPIDER_UDF_PARAM_REQIRED_NUM,
+        ER_SPIDER_UDF_PARAM_REQIRED_STR, MYF(0), "link id");
+      goto error;
+    }
+    if (
+      args->lengths[1] > SPIDER_CONNECT_INFO_MAX_LEN
+    ) {
+      my_printf_error(ER_SPIDER_UDF_PARAM_TOO_LONG_NUM,
+        ER_SPIDER_UDF_PARAM_TOO_LONG_STR, MYF(0), "link id");
+      goto error;
+    }
+    link_idx_str_length = args->lengths[1];
+    memcpy(link_idx_str, args->args[1], link_idx_str_length + 1);
+    if (link_idx_str[0] >= '0' && link_idx_str[0] <= '9')
+    {
+      link_idx = atoi(link_idx_str);
+    } else {
+      link_idx = -1;
+      static_link_id = link_idx_str;
+      static_link_id_length = link_idx_str_length;
+    }
+  } else {
+    link_idx = (int) (args->args[1] ? *((longlong *) args->args[1]) : 0);
+    link_idx_str_length = my_sprintf(link_idx_str, (link_idx_str, "%010d",
+      link_idx));
+  }
+  flags = (int) (args->args[2] ? *((longlong *) args->args[2]) : 0);
+  limit = args->args[3] ? *((longlong *) args->args[3]) : 0;
+  where_clause = args->args[4] ? args->args[4] : (char *) "";
+
+  if (conv_name.append(args->args[0], args->lengths[0],
+    trx->thd->variables.character_set_client))
+  {
+    my_error(HA_ERR_OUT_OF_MEM, MYF(0));
+    goto error;
+  }
+  conv_name_length = conv_name.length();
+  if (conv_name.reserve(link_idx_str_length + 1))
+  {
+    my_error(HA_ERR_OUT_OF_MEM, MYF(0));
+    goto error;
+  }
+  conv_name.q_append(link_idx_str, link_idx_str_length + 1);
+  conv_name.length(conv_name.length() - 1);
+
+  if (!(table_mon_list = spider_get_ping_table_mon_list(trx, trx->thd,
+    &conv_name, conv_name_length, link_idx,
+    static_link_id, static_link_id_length,
+    server_id, TRUE, &error_num)))
+    goto error;
+
+  if (table_mon_list->mon_status == SPIDER_LINK_MON_NG)
+  {
+    mon_table_result->result_status = SPIDER_LINK_MON_NG;
+    DBUG_PRINT("info",
+      ("spider mon_table_result->result_status=SPIDER_LINK_MON_NG 1"));
+    goto end;
+  }
+
+  if (args->args[5])
+    tmp_sid = *((longlong *) args->args[5]);
+
+  if (tmp_sid >= 0)
+  {
+    first_sid = (uint32) tmp_sid;
+    full_mon_count = (int) (args->args[6] ? *((longlong *) args->args[6]) : 0);
+    current_mon_count =
+      (int) (args->args[7] ? *((longlong *) args->args[7]) + 1 : 1);
+    if (full_mon_count != table_mon_list->list_size)
+    {
+      my_printf_error(ER_SPIDER_UDF_PING_TABLE_DIFFERENT_MON_NUM,
+        ER_SPIDER_UDF_PING_TABLE_DIFFERENT_MON_STR, MYF(0));
+      goto error_with_free_table_mon_list;
+    }
+  } else {
+    first_sid = server_id;
+    full_mon_count = table_mon_list->list_size;
+    current_mon_count = 1;
+  }
+
+  success_count = (int) (args->args[8] ? *((longlong *) args->args[8]) : 0);
+  fault_count = (int) (args->args[9] ? *((longlong *) args->args[9]) : 0);
+  if (
+    table_mon_list->mon_status != SPIDER_LINK_MON_NG &&
+    !(ping_conn = spider_get_ping_table_tgt_conn(trx,
+      table_mon_list->share, &error_num))
+  ) {
+    if (error_num == HA_ERR_OUT_OF_MEM)
+      goto error_with_free_table_mon_list;
+    else
+      thd->clear_error();
+  }
+  if (
+    table_mon_list->mon_status == SPIDER_LINK_MON_NG ||
+    error_num ||
+    (tmp_error_num = spider_db_udf_ping_table(table_mon_list, table_mon_list->share, trx,
+      ping_conn, where_clause, args->lengths[4],
+      (flags & SPIDER_UDF_PING_TABLE_PING_ONLY),
+      (flags & SPIDER_UDF_PING_TABLE_USE_WHERE),
+      limit
+    ))
+  ) {
+    DBUG_PRINT("info",("spider table_mon_list->mon_status == SPIDER_LINK_MON_NG:%s",
+      table_mon_list->mon_status == SPIDER_LINK_MON_NG ? "TRUE" : "FALSE"));
+    DBUG_PRINT("info",("spider error_num=%d", error_num));
+    DBUG_PRINT("info",("spider tmp_error_num=%d", tmp_error_num));
+    if (tmp_error_num == HA_ERR_OUT_OF_MEM)
+      goto error_with_free_table_mon_list;
+    else if(tmp_error_num)
+      thd->clear_error();
+    if (tmp_error_num != ER_CON_COUNT_ERROR)
+    {
+      fault_count++;
+      error_num = 0;
+      if (
+        !(flags & SPIDER_UDF_PING_TABLE_USE_ALL_MONITORING_NODES) &&
+        fault_count > full_mon_count / 2
+      ) {
+        mon_table_result->result_status = SPIDER_LINK_MON_NG;
+        DBUG_PRINT("info",("spider mon_table_result->result_status=SPIDER_LINK_MON_NG 2"));
+        if (table_mon_list->mon_status != SPIDER_LINK_MON_NG)
+        {
+/*
+          pthread_mutex_lock(&table_mon_list->update_status_mutex);
+*/
+          pthread_mutex_lock(&spider_udf_table_mon_mutexes[table_mon_list->mutex_hash]);
+          if (table_mon_list->mon_status != SPIDER_LINK_MON_NG)
+          {
+            table_mon_list->mon_status = SPIDER_LINK_MON_NG;
+            table_mon_list->share->link_statuses[0] = SPIDER_LINK_STATUS_NG;
+            spider_update_link_status_for_share(conv_name.c_ptr(),
+              conv_name_length, link_idx, SPIDER_LINK_STATUS_NG);
+            spider_sys_update_tables_link_status(trx->thd,
+              conv_name.c_ptr(), conv_name_length, link_idx,
+              SPIDER_LINK_STATUS_NG, TRUE);
+            spider_sys_log_tables_link_failed(trx->thd,
+              conv_name.c_ptr(), conv_name_length, link_idx, TRUE);
+            status_changed_to_ng = TRUE;
+          }
+/*
+          pthread_mutex_unlock(&table_mon_list->update_status_mutex);
+*/
+          pthread_mutex_unlock(&spider_udf_table_mon_mutexes[table_mon_list->mutex_hash]);
+          if (status_changed_to_ng)
+          {
+            bool is_error = trx->thd->is_error();
+            spider_get_ping_table_gtid_pos(trx, trx->thd,
+              &conv_name, conv_name_length, link_idx, server_id, TRUE,
+              &tmp_str);
+            if (!is_error && trx->thd->is_error())
+              trx->thd->clear_error();
+          }
+        }
+        goto end;
+      }
+    }
+  } else {
+    success_count++;
+    if (
+      !(flags & SPIDER_UDF_PING_TABLE_USE_ALL_MONITORING_NODES) &&
+      success_count > full_mon_count / 2
+    ) {
+      mon_table_result->result_status = SPIDER_LINK_MON_OK;
+      DBUG_PRINT("info",("spider mon_table_result->result_status=SPIDER_LINK_MON_OK 1"));
+      goto end;
+    }
+  }
+
+  if (tmp_sid < 0)
+  {
+    if (!pthread_mutex_trylock(&table_mon_list->receptor_mutex))
+      get_lock = TRUE;
+  }
+
+  if (
+    tmp_sid >= 0 ||
+    get_lock
+  ) {
+    table_mon = table_mon_list->current->next;
+    while (TRUE)
+    {
+      if (!table_mon)
+        table_mon = table_mon_list->first;
+      if (
+        table_mon->server_id == first_sid ||
+        current_mon_count > full_mon_count
+      ) {
+        if (
+          (flags & SPIDER_UDF_PING_TABLE_USE_ALL_MONITORING_NODES) &&
+          fault_count > full_mon_count / 2
+        ) {
+          mon_table_result->result_status = SPIDER_LINK_MON_NG;
+          DBUG_PRINT("info",("spider mon_table_result->result_status=SPIDER_LINK_MON_NG 3"));
+          if (table_mon_list->mon_status != SPIDER_LINK_MON_NG)
+          {
+/*
+            pthread_mutex_lock(&table_mon_list->update_status_mutex);
+*/
+            pthread_mutex_lock(&spider_udf_table_mon_mutexes[table_mon_list->mutex_hash]);
+            if (table_mon_list->mon_status != SPIDER_LINK_MON_NG)
+            {
+              table_mon_list->mon_status = SPIDER_LINK_MON_NG;
+              table_mon_list->share->link_statuses[0] = SPIDER_LINK_STATUS_NG;
+              spider_update_link_status_for_share(conv_name.c_ptr(),
+                conv_name_length, link_idx, SPIDER_LINK_STATUS_NG);
+              spider_sys_update_tables_link_status(trx->thd,
+                conv_name.c_ptr(), conv_name_length, link_idx,
+                SPIDER_LINK_STATUS_NG, TRUE);
+              spider_sys_log_tables_link_failed(trx->thd,
+                conv_name.c_ptr(), conv_name_length, link_idx, TRUE);
+              status_changed_to_ng = TRUE;
+            }
+/*
+            pthread_mutex_unlock(&table_mon_list->update_status_mutex);
+*/
+            pthread_mutex_unlock(&spider_udf_table_mon_mutexes[table_mon_list->mutex_hash]);
+            if (status_changed_to_ng)
+            {
+              bool is_error = trx->thd->is_error();
+              spider_get_ping_table_gtid_pos(trx, trx->thd,
+                &conv_name, conv_name_length, link_idx, server_id, TRUE,
+                &tmp_str);
+              if (!is_error && trx->thd->is_error())
+                trx->thd->clear_error();
+            }
+          }
+        } else if (
+          (flags & SPIDER_UDF_PING_TABLE_USE_ALL_MONITORING_NODES) &&
+          success_count > full_mon_count / 2
+        ) {
+          mon_table_result->result_status = SPIDER_LINK_MON_OK;
+          DBUG_PRINT("info",("spider mon_table_result->result_status=SPIDER_LINK_MON_OK 2"));
+        } else if (success_count + fault_count > full_mon_count / 2)
+        {
+          mon_table_result->result_status = SPIDER_LINK_MON_DRAW;
+          DBUG_PRINT("info",(
+            "spider mon_table_result->result_status=SPIDER_LINK_MON_DRAW 1"));
+        } else {
+          mon_table_result->result_status = SPIDER_LINK_MON_DRAW_FEW_MON;
+          DBUG_PRINT("info",(
+            "spider mon_table_result->result_status=SPIDER_LINK_MON_DRAW_FEW_MON 1"));
+        }
+        table_mon_list->last_receptor_result = mon_table_result->result_status;
+        break;
+      }
+      if ((mon_conn = spider_get_ping_table_tgt_conn(trx,
+        table_mon->share, &error_num))
+      ) {
+        if (!spider_db_udf_ping_table_mon_next(
+          thd, table_mon, mon_conn, mon_table_result, args->args[0],
+          args->lengths[0], link_idx,
+          where_clause, args->lengths[4], first_sid, full_mon_count,
+          current_mon_count, success_count, fault_count, flags, limit))
+        {
+          if (
+            mon_table_result->result_status == SPIDER_LINK_MON_NG &&
+            table_mon_list->mon_status != SPIDER_LINK_MON_NG
+          ) {
+/*
+            pthread_mutex_lock(&table_mon_list->update_status_mutex);
+*/
+            pthread_mutex_lock(&spider_udf_table_mon_mutexes[table_mon_list->mutex_hash]);
+            if (table_mon_list->mon_status != SPIDER_LINK_MON_NG)
+            {
+              table_mon_list->mon_status = SPIDER_LINK_MON_NG;
+              table_mon_list->share->link_statuses[0] = SPIDER_LINK_STATUS_NG;
+              spider_update_link_status_for_share(conv_name.c_ptr(),
+                conv_name_length, link_idx, SPIDER_LINK_STATUS_NG);
+              spider_sys_update_tables_link_status(trx->thd,
+                conv_name.c_ptr(), conv_name_length, link_idx,
+                SPIDER_LINK_STATUS_NG, TRUE);
+              spider_sys_log_tables_link_failed(trx->thd,
+                conv_name.c_ptr(), conv_name_length, link_idx, TRUE);
+              status_changed_to_ng = TRUE;
+            }
+/*
+            pthread_mutex_unlock(&table_mon_list->update_status_mutex);
+*/
+            pthread_mutex_unlock(&spider_udf_table_mon_mutexes[table_mon_list->mutex_hash]);
+            if (status_changed_to_ng)
+            {
+              bool is_error = trx->thd->is_error();
+              spider_get_ping_table_gtid_pos(trx, trx->thd,
+                &conv_name, conv_name_length, link_idx, server_id, TRUE,
+                &tmp_str);
+              if (!is_error && trx->thd->is_error())
+                trx->thd->clear_error();
+            }
+          }
+          table_mon_list->last_receptor_result =
+            mon_table_result->result_status;
+          break;
+        }
+      }
+      thd->clear_error();
+      table_mon = table_mon->next;
+      current_mon_count++;
+    }
+    if (get_lock)
+      pthread_mutex_unlock(&table_mon_list->receptor_mutex);
+  } else {
+    pthread_mutex_lock(&table_mon_list->receptor_mutex);
+    mon_table_result->result_status = table_mon_list->last_receptor_result;
+    DBUG_PRINT("info",("spider mon_table_result->result_status=%d 1",
+      table_mon_list->last_receptor_result));
+    pthread_mutex_unlock(&table_mon_list->receptor_mutex);
+  }
+
+end:
+  spider_free_ping_table_mon_list(table_mon_list);
+  DBUG_RETURN(mon_table_result->result_status);
+
+error_with_free_table_mon_list:
+  spider_free_ping_table_mon_list(table_mon_list);
+error:
+  *error = 1;
+  DBUG_RETURN(0);
+}
+
+my_bool spider_ping_table_init_body(
+  UDF_INIT *initid,
+  UDF_ARGS *args,
+  char *message
+) {
+  int error_num;
+  THD *thd = current_thd;
+  SPIDER_TRX *trx;
+  SPIDER_MON_TABLE_RESULT *mon_table_result = NULL;
+  DBUG_ENTER("spider_ping_table_init_body");
+  if (args->arg_count != 10)
+  {
+    strcpy(message, "spider_ping_table() requires 10 arguments");
+    goto error;
+  }
+  if (
+    args->arg_type[0] != STRING_RESULT ||
+    args->arg_type[4] != STRING_RESULT
+  ) {
+    strcpy(message, "spider_ping_table() requires string 1st "
+      "and 5th arguments");
+    goto error;
+  }
+  if (
+    args->arg_type[2] != INT_RESULT ||
+    args->arg_type[3] != INT_RESULT ||
+    args->arg_type[5] != INT_RESULT ||
+    args->arg_type[6] != INT_RESULT ||
+    args->arg_type[7] != INT_RESULT ||
+    args->arg_type[8] != INT_RESULT ||
+    args->arg_type[9] != INT_RESULT
+  ) {
+    strcpy(message, "spider_ping_table() requires integer 3rd, 4,6,7,8,"
+      "9th and 10th argument");
+    goto error;
+  }
+  if (
+    args->arg_type[1] != INT_RESULT &&
+    args->arg_type[1] != STRING_RESULT
+  ) {
+    strcpy(message, "spider_ping_table() requires string or integer for "
+      "2nd argument");
+    goto error;
+  }
+
+  if (!(trx = spider_get_trx(thd, TRUE, &error_num)))
+  {
+    my_error(error_num, MYF(0));
+    strcpy(message, spider_stmt_da_message(thd));
+    goto error;
+  }
+
+  if (!(mon_table_result = (SPIDER_MON_TABLE_RESULT *)
+    spider_malloc(spider_current_trx, 11, sizeof(SPIDER_MON_TABLE_RESULT),
+      MYF(MY_WME | MY_ZEROFILL)))
+  ) {
+    strcpy(message, "spider_ping_table() out of memory");
+    goto error;
+  }
+  mon_table_result->trx = trx;
+  initid->ptr = (char *) mon_table_result;
+  DBUG_RETURN(FALSE);
+
+error:
+  if (mon_table_result)
+  {
+    spider_free(spider_current_trx, mon_table_result, MYF(0));
+  }
+  DBUG_RETURN(TRUE);
+}
+
+void spider_ping_table_deinit_body(
+  UDF_INIT *initid
+) {
+  SPIDER_MON_TABLE_RESULT *mon_table_result =
+    (SPIDER_MON_TABLE_RESULT *) initid->ptr;
+  DBUG_ENTER("spider_ping_table_deinit_body");
+  if (mon_table_result)
+  {
+    spider_free(spider_current_trx, mon_table_result, MYF(0));
+  }
+  DBUG_VOID_RETURN;
+}
+
+long long spider_flush_table_mon_cache_body()
+{
+  DBUG_ENTER("spider_flush_table_mon_cache_body");
+  spider_mon_table_cache_version_req++;
+  DBUG_RETURN(1);
+}
+
+void spider_ping_table_free_mon_list(
+  SPIDER_TABLE_MON_LIST *table_mon_list
+) {
+  DBUG_ENTER("spider_ping_table_free_mon_list");
+  if (table_mon_list)
+  {
+    spider_ping_table_free_mon(table_mon_list->first);
+    spider_free_tmp_share_alloc(table_mon_list->share);
+    pthread_mutex_destroy(&table_mon_list->update_status_mutex);
+    pthread_mutex_destroy(&table_mon_list->monitor_mutex);
+    pthread_mutex_destroy(&table_mon_list->receptor_mutex);
+    pthread_mutex_destroy(&table_mon_list->caller_mutex);
+    spider_free(spider_current_trx, table_mon_list, MYF(0));
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_ping_table_free_mon(
+  SPIDER_TABLE_MON *table_mon
+) {
+  SPIDER_TABLE_MON *table_mon_next;
+  DBUG_ENTER("spider_ping_table_free_mon");
+  while (table_mon)
+  {
+    spider_free_tmp_share_alloc(table_mon->share);
+    table_mon_next = table_mon->next;
+    spider_free(spider_current_trx, table_mon, MYF(0));
+    table_mon = table_mon_next;
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_ping_table_mon_from_table(
+  SPIDER_TRX *trx,
+  THD *thd,
+  SPIDER_SHARE *share,
+  int base_link_idx,
+  uint32 server_id,
+  char *conv_name,
+  uint conv_name_length,
+  int link_idx,
+  char *where_clause,
+  uint where_clause_length,
+  long monitoring_kind,
+  longlong monitoring_limit,
+  long monitoring_flag,
+  bool need_lock
+) {
+  int error_num = 0, current_mon_count, flags;
+  uint32 first_sid;
+/*
+  THD *thd = trx->thd;
+*/
+  SPIDER_TABLE_MON_LIST *table_mon_list;
+  SPIDER_TABLE_MON *table_mon;
+  SPIDER_MON_TABLE_RESULT mon_table_result;
+  SPIDER_CONN *mon_conn;
+  TABLE_SHARE *table_share = share->table_share;
+  char link_idx_str[SPIDER_CONNECT_INFO_MAX_LEN + 1];
+  int link_idx_str_length;
+  uint sql_command = thd_sql_command(thd);
+  DBUG_ENTER("spider_ping_table_mon_from_table");
+  if (table_share->tmp_table != NO_TMP_TABLE)
+  {
+    my_printf_error(ER_SPIDER_TMP_TABLE_MON_NUM,
+      ER_SPIDER_TMP_TABLE_MON_STR, MYF(0));
+    DBUG_RETURN(ER_SPIDER_TMP_TABLE_MON_NUM);
+  }
+  if (
+    sql_command == SQLCOM_DROP_TABLE ||
+    sql_command == SQLCOM_ALTER_TABLE
+  ) {
+    my_printf_error(ER_SPIDER_MON_AT_ALTER_TABLE_NUM,
+      ER_SPIDER_MON_AT_ALTER_TABLE_STR, MYF(0));
+    DBUG_RETURN(ER_SPIDER_MON_AT_ALTER_TABLE_NUM);
+  }
+  DBUG_PRINT("info",("spider thd->killed=%s",
+    thd ? (thd->killed ? "TRUE" : "FALSE") : "NULL"));
+  DBUG_PRINT("info",("spider abort_loop=%s",
+    *spd_abort_loop ? "TRUE" : "FALSE"));
+  if (
+    (thd && thd->killed) ||
+    *spd_abort_loop
+  ) {
+    DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+  }
+
+  if (share->static_link_ids[link_idx])
+  {
+    memcpy(link_idx_str, share->static_link_ids[link_idx],
+      share->static_link_ids_lengths[link_idx] + 1);
+    link_idx_str_length = share->static_link_ids_lengths[link_idx];
+  } else {
+    link_idx_str_length = my_sprintf(link_idx_str, (link_idx_str, "%010d",
+      link_idx));
+  }
+  char *buf = (char *) my_alloca(conv_name_length + link_idx_str_length + 1);
+  if (!buf)
+  {
+    my_error(HA_ERR_OUT_OF_MEM, MYF(0));
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  buf[conv_name_length + link_idx_str_length] = '\0';
+  spider_string conv_name_str(buf, conv_name_length + link_idx_str_length + 1,
+    system_charset_info);
+  conv_name_str.init_calc_mem(136);
+  conv_name_str.length(0);
+  conv_name_str.q_append(conv_name, conv_name_length);
+  conv_name_str.q_append(link_idx_str, link_idx_str_length + 1);
+  conv_name_str.length(conv_name_str.length() - 1);
+
+  if (monitoring_kind == 1)
+    flags = SPIDER_UDF_PING_TABLE_PING_ONLY;
+  else if (monitoring_kind == 3)
+    flags = SPIDER_UDF_PING_TABLE_USE_WHERE;
+  else
+    flags = 0;
+
+  if (monitoring_flag & 1)
+    flags |= SPIDER_UDF_PING_TABLE_USE_ALL_MONITORING_NODES;
+
+  if (!(table_mon_list = spider_get_ping_table_mon_list(trx, thd,
+    &conv_name_str, conv_name_length, link_idx,
+    share->static_link_ids[link_idx],
+    share->static_link_ids_lengths[link_idx],
+    server_id, need_lock, &error_num)))
+  {
+    my_afree(buf);
+    goto end;
+  }
+
+  if (table_mon_list->mon_status == SPIDER_LINK_MON_NG)
+  {
+    DBUG_PRINT("info",
+      ("spider share->link_statuses[%d]=SPIDER_LINK_STATUS_NG", link_idx));
+    pthread_mutex_lock(&spider_udf_table_mon_mutexes[table_mon_list->mutex_hash]);
+    share->link_statuses[link_idx] = SPIDER_LINK_STATUS_NG;
+    pthread_mutex_unlock(&spider_udf_table_mon_mutexes[table_mon_list->mutex_hash]);
+    error_num = ER_SPIDER_LINK_MON_NG_NUM;
+    my_printf_error(error_num,
+      ER_SPIDER_LINK_MON_NG_STR, MYF(0),
+      table_mon_list->share->tgt_dbs[0],
+      table_mon_list->share->tgt_table_names[0]);
+    my_afree(buf);
+    goto end_with_free_table_mon_list;
+  }
+
+  if (!pthread_mutex_trylock(&table_mon_list->caller_mutex))
+  {
+    table_mon = table_mon_list->current;
+    first_sid = table_mon->server_id;
+    current_mon_count = 1;
+    while (TRUE)
+    {
+      DBUG_PRINT("info",("spider thd->killed=%s",
+        thd ? (thd->killed ? "TRUE" : "FALSE") : "NULL"));
+      DBUG_PRINT("info",("spider abort_loop=%s",
+        *spd_abort_loop ? "TRUE" : "FALSE"));
+      if (
+        (thd && thd->killed) ||
+        *spd_abort_loop
+      ) {
+        error_num = ER_SPIDER_COND_SKIP_NUM;
+        break;
+      } else {
+        if (!table_mon)
+          table_mon = table_mon_list->first;
+        if (
+          current_mon_count > table_mon_list->list_size ||
+          (current_mon_count > 1 && table_mon->server_id == first_sid)
+        ) {
+          table_mon_list->last_caller_result = SPIDER_LINK_MON_DRAW_FEW_MON;
+          mon_table_result.result_status = SPIDER_LINK_MON_DRAW_FEW_MON;
+          DBUG_PRINT("info",(
+            "spider mon_table_result->result_status=SPIDER_LINK_MON_DRAW_FEW_MON 1"));
+          error_num = ER_SPIDER_LINK_MON_DRAW_FEW_MON_NUM;
+          my_printf_error(error_num,
+            ER_SPIDER_LINK_MON_DRAW_FEW_MON_STR, MYF(0),
+            table_mon_list->share->tgt_dbs[0],
+            table_mon_list->share->tgt_table_names[0]);
+          break;
+        }
+        int prev_error = 0;
+        char prev_error_msg[MYSQL_ERRMSG_SIZE];
+        if (thd->is_error())
+        {
+          prev_error = spider_stmt_da_sql_errno(thd);
+          strmov(prev_error_msg, spider_stmt_da_message(thd));
+          thd->clear_error();
+        }
+        if ((mon_conn = spider_get_ping_table_tgt_conn(trx,
+          table_mon->share, &error_num))
+        ) {
+          if (!spider_db_udf_ping_table_mon_next(
+            thd, table_mon, mon_conn, &mon_table_result, conv_name,
+            conv_name_length, link_idx,
+            where_clause, where_clause_length, -1, table_mon_list->list_size,
+            0, 0, 0, flags, monitoring_limit))
+          {
+            if (
+              mon_table_result.result_status == SPIDER_LINK_MON_NG &&
+              table_mon_list->mon_status != SPIDER_LINK_MON_NG
+            ) {
+/*
+              pthread_mutex_lock(&table_mon_list->update_status_mutex);
+*/
+              pthread_mutex_lock(&spider_udf_table_mon_mutexes[table_mon_list->mutex_hash]);
+              if (table_mon_list->mon_status != SPIDER_LINK_MON_NG)
+              {
+                table_mon_list->mon_status = SPIDER_LINK_MON_NG;
+                table_mon_list->share->link_statuses[0] = SPIDER_LINK_STATUS_NG;
+                DBUG_PRINT("info", (
+                  "spider share->link_statuses[%d]=SPIDER_LINK_STATUS_NG",
+                  link_idx));
+                share->link_statuses[link_idx] = SPIDER_LINK_STATUS_NG;
+                spider_sys_update_tables_link_status(thd, conv_name,
+                  conv_name_length, link_idx, SPIDER_LINK_STATUS_NG, need_lock);
+                spider_sys_log_tables_link_failed(thd, conv_name,
+                  conv_name_length, link_idx, need_lock);
+              }
+/*
+              pthread_mutex_unlock(&table_mon_list->update_status_mutex);
+*/
+              pthread_mutex_unlock(&spider_udf_table_mon_mutexes[table_mon_list->mutex_hash]);
+            }
+            table_mon_list->last_caller_result = mon_table_result.result_status;
+            if (mon_table_result.result_status == SPIDER_LINK_MON_OK)
+            {
+              if (prev_error)
+                my_message(prev_error, prev_error_msg, MYF(0));
+              error_num = ER_SPIDER_LINK_MON_OK_NUM;
+              my_printf_error(error_num,
+                ER_SPIDER_LINK_MON_OK_STR, MYF(0),
+                table_mon_list->share->tgt_dbs[0],
+                table_mon_list->share->tgt_table_names[0]);
+              break;
+            }
+            if (mon_table_result.result_status == SPIDER_LINK_MON_NG)
+            {
+              error_num = ER_SPIDER_LINK_MON_NG_NUM;
+              my_printf_error(error_num,
+                ER_SPIDER_LINK_MON_NG_STR, MYF(0),
+                table_mon_list->share->tgt_dbs[0],
+                table_mon_list->share->tgt_table_names[0]);
+              break;
+            }
+            if (mon_table_result.result_status ==
+              SPIDER_LINK_MON_DRAW_FEW_MON)
+            {
+              error_num = ER_SPIDER_LINK_MON_DRAW_FEW_MON_NUM;
+              my_printf_error(error_num,
+                ER_SPIDER_LINK_MON_DRAW_FEW_MON_STR, MYF(0),
+                table_mon_list->share->tgt_dbs[0],
+                table_mon_list->share->tgt_table_names[0]);
+              break;
+            }
+            error_num = ER_SPIDER_LINK_MON_DRAW_NUM;
+            my_printf_error(error_num,
+              ER_SPIDER_LINK_MON_DRAW_STR, MYF(0),
+              table_mon_list->share->tgt_dbs[0],
+              table_mon_list->share->tgt_table_names[0]);
+            break;
+          }
+        }
+        table_mon = table_mon->next;
+        current_mon_count++;
+      }
+    }
+    pthread_mutex_unlock(&table_mon_list->caller_mutex);
+  } else {
+    pthread_mutex_lock(&table_mon_list->caller_mutex);
+    DBUG_PRINT("info",("spider thd->killed=%s",
+      thd ? (thd->killed ? "TRUE" : "FALSE") : "NULL"));
+    DBUG_PRINT("info",("spider abort_loop=%s",
+      *spd_abort_loop ? "TRUE" : "FALSE"));
+    if (
+      (thd && thd->killed) ||
+      *spd_abort_loop
+    ) {
+      error_num = ER_SPIDER_COND_SKIP_NUM;
+    } else {
+      switch (table_mon_list->last_caller_result)
+      {
+        case SPIDER_LINK_MON_OK:
+          error_num = ER_SPIDER_LINK_MON_OK_NUM;
+          my_printf_error(error_num,
+            ER_SPIDER_LINK_MON_OK_STR, MYF(0),
+            table_mon_list->share->tgt_dbs[0],
+            table_mon_list->share->tgt_table_names[0]);
+          break;
+        case SPIDER_LINK_MON_NG:
+          error_num = ER_SPIDER_LINK_MON_NG_NUM;
+          my_printf_error(error_num,
+            ER_SPIDER_LINK_MON_NG_STR, MYF(0),
+            table_mon_list->share->tgt_dbs[0],
+            table_mon_list->share->tgt_table_names[0]);
+          break;
+        case SPIDER_LINK_MON_DRAW_FEW_MON:
+          error_num = ER_SPIDER_LINK_MON_DRAW_FEW_MON_NUM;
+          my_printf_error(error_num,
+            ER_SPIDER_LINK_MON_DRAW_FEW_MON_STR, MYF(0),
+            table_mon_list->share->tgt_dbs[0],
+            table_mon_list->share->tgt_table_names[0]);
+          break;
+        default:
+          error_num = ER_SPIDER_LINK_MON_DRAW_NUM;
+          my_printf_error(error_num,
+            ER_SPIDER_LINK_MON_DRAW_STR, MYF(0),
+            table_mon_list->share->tgt_dbs[0],
+            table_mon_list->share->tgt_table_names[0]);
+          break;
+      }
+    }
+    pthread_mutex_unlock(&table_mon_list->caller_mutex);
+  }
+
+  my_afree(buf);
+end_with_free_table_mon_list:
+  spider_free_ping_table_mon_list(table_mon_list);
+end:
+  DBUG_RETURN(error_num);
+}
diff --git a/storage/spider/spd_ping_table.h b/storage/spider/spd_ping_table.h
new file mode 100644
index 00000000..586ee7af
--- /dev/null
+++ b/storage/spider/spd_ping_table.h
@@ -0,0 +1,119 @@
+/* Copyright (C) 2009-2017 Kentoku Shiba
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+SPIDER_TABLE_MON_LIST *spider_get_ping_table_mon_list(
+  SPIDER_TRX *trx,
+  THD *thd,
+  spider_string *str,
+  uint conv_name_length,
+  int link_idx,
+  char *static_link_id,
+  uint static_link_id_length,
+  uint32 server_id,
+  bool need_lock,
+  int *error_num
+);
+
+void spider_free_ping_table_mon_list(
+  SPIDER_TABLE_MON_LIST *table_mon_list
+);
+
+void spider_release_ping_table_mon_list_loop(
+  uint mutex_hash,
+  SPIDER_TABLE_MON_LIST *table_mon_list
+);
+
+int spider_release_ping_table_mon_list(
+  const char *conv_name,
+  uint conv_name_length,
+  int link_idx
+);
+
+int spider_get_ping_table_mon(
+  THD *thd,
+  SPIDER_TABLE_MON_LIST *table_mon_list,
+  char *name,
+  uint name_length,
+  int link_idx,
+  uint32 server_id,
+  MEM_ROOT *mem_root,
+  bool need_lock
+);
+
+SPIDER_TABLE_MON_LIST *spider_get_ping_table_tgt(
+  THD *thd,
+  char *name,
+  uint name_length,
+  int link_idx,
+  char *static_link_id,
+  uint static_link_id_length,
+  uint32 server_id,
+  spider_string *str,
+  bool need_lock,
+  int *error_num
+);
+
+SPIDER_CONN *spider_get_ping_table_tgt_conn(
+  SPIDER_TRX *trx,
+  SPIDER_SHARE *share,
+  int *error_num
+);
+
+int spider_get_ping_table_gtid_pos(
+  SPIDER_TRX *trx,
+  THD *thd,
+  spider_string *str,
+  uint conv_name_length,
+  int failed_link_idx,
+  uint32 server_id,
+  bool need_lock,
+  spider_string *tmp_str
+);
+
+int spider_init_ping_table_mon_cache(
+  THD *thd,
+  MEM_ROOT *mem_root,
+  bool need_lock
+);
+
+int spider_ping_table_cache_compare(
+  TABLE *table,
+  MEM_ROOT *mem_root
+);
+
+void spider_ping_table_free_mon_list(
+  SPIDER_TABLE_MON_LIST *table_mon_list
+);
+
+void spider_ping_table_free_mon(
+  SPIDER_TABLE_MON *table_mon
+);
+
+int spider_ping_table_mon_from_table(
+  SPIDER_TRX *trx,
+  THD *thd,
+  SPIDER_SHARE *share,
+  int base_link_idx,
+  uint32 server_id,
+  char *conv_name,
+  uint conv_name_length,
+  int link_idx,
+  char *where_clause,
+  uint where_clause_length,
+  long monitoring_kind,
+  longlong monitoring_limit,
+  long monitoring_flag,
+  bool need_lock
+);
diff --git a/storage/spider/spd_sys_table.cc b/storage/spider/spd_sys_table.cc
new file mode 100644
index 00000000..0ed8640e
--- /dev/null
+++ b/storage/spider/spd_sys_table.cc
@@ -0,0 +1,3830 @@
+/* Copyright (C) 2008-2018 Kentoku Shiba
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+#define MYSQL_SERVER 1
+#include <my_global.h>
+#include "mysql_version.h"
+#include "spd_environ.h"
+#if MYSQL_VERSION_ID < 50500
+#include "mysql_priv.h"
+#include <mysql/plugin.h>
+#else
+#include "sql_priv.h"
+#include "probes_mysql.h"
+#include "sql_class.h"
+#include "key.h"
+#include "sql_base.h"
+#include "tztime.h"
+#endif
+#include "sql_select.h"
+#include "spd_err.h"
+#include "spd_param.h"
+#include "spd_db_include.h"
+#include "spd_include.h"
+#include "spd_sys_table.h"
+#include "spd_malloc.h"
+
+extern handlerton *spider_hton_ptr;
+extern Time_zone *spd_tz_system;
+
+#define SPIDER_XA_FORMAT_ID_POS                               0
+#define SPIDER_XA_GTRID_LENGTH_POS                            1
+#define SPIDER_XA_BQUAL_LENGTH_POS                            2
+#define SPIDER_XA_DATA_POS                                    3
+#define SPIDER_XA_STATUS_POS                                  4
+
+#define SPIDER_XA_MEMBER_FORMAT_ID_POS                        0
+#define SPIDER_XA_MEMBER_GTRID_LENGTH_POS                     1
+#define SPIDER_XA_MEMBER_BQUAL_LENGTH_POS                     2
+#define SPIDER_XA_MEMBER_DATA_POS                             3
+#define SPIDER_XA_MEMBER_SCHEME_POS                           4
+#define SPIDER_XA_MEMBER_HOST_POS                             5
+#define SPIDER_XA_MEMBER_PORT_POS                             6
+#define SPIDER_XA_MEMBER_SOCKET_POS                           7
+#define SPIDER_XA_MEMBER_USERNAME_POS                         8
+#define SPIDER_XA_MEMBER_PASSWORD_POS                         9
+#define SPIDER_XA_MEMBER_SSL_CA_POS                          10
+#define SPIDER_XA_MEMBER_SSL_CAPATH_POS                      11
+#define SPIDER_XA_MEMBER_SSL_CERT_POS                        12
+#define SPIDER_XA_MEMBER_SSL_CIPHER_POS                      13
+#define SPIDER_XA_MEMBER_SSL_KEY_POS                         14
+#define SPIDER_XA_MEMBER_SSL_VERIFY_SERVER_CERT_POS          15
+#define SPIDER_XA_MEMBER_DEFAULT_FILE_POS                    16
+#define SPIDER_XA_MEMBER_DEFAULT_GROUP_POS                   17
+#define SPIDER_XA_MEMBER_DSN_POS                             18
+#define SPIDER_XA_FAILED_LOG_THREAD_ID_POS                   19
+#define SPIDER_XA_FAILED_LOG_STATUS_POS                      20
+#define SPIDER_XA_FAILED_LOG_FAILED_TIME_POS                 21
+
+#define SPIDER_TABLES_DB_NAME_POS                             0
+#define SPIDER_TABLES_TABLE_NAME_POS                          1
+#define SPIDER_TABLES_LINK_ID_POS                             2
+#define SPIDER_TABLES_PRIORITY_POS                            3
+#define SPIDER_TABLES_SERVER_POS                              4
+#define SPIDER_TABLES_SCHEME_POS                              5
+#define SPIDER_TABLES_HOST_POS                                6
+#define SPIDER_TABLES_PORT_POS                                7
+#define SPIDER_TABLES_SOCKET_POS                              8
+#define SPIDER_TABLES_USERNAME_POS                            9
+#define SPIDER_TABLES_PASSWORD_POS                           10
+#define SPIDER_TABLES_SSL_CA_POS                             11
+#define SPIDER_TABLES_SSL_CAPATH_POS                         12
+#define SPIDER_TABLES_SSL_CERT_POS                           13
+#define SPIDER_TABLES_SSL_CIPHER_POS                         14
+#define SPIDER_TABLES_SSL_KEY_POS                            15
+#define SPIDER_TABLES_SSL_VERIFY_SERVER_CERT_POS             16
+#define SPIDER_TABLES_MONITORING_BINLOG_POS_AT_FAILING_POS   17
+#define SPIDER_TABLES_DEFAULT_FILE_POS                       18
+#define SPIDER_TABLES_DEFAULT_GROUP_POS                      19
+#define SPIDER_TABLES_DSN_POS                                20
+#define SPIDER_TABLES_TGT_DB_NAME_POS                        21
+#define SPIDER_TABLES_TGT_TABLE_NAME_POS                     22
+#define SPIDER_TABLES_LINK_STATUS_POS                        23
+#define SPIDER_TABLES_BLOCK_STATUS_POS                       24
+#define SPIDER_TABLES_STATIC_LINK_ID_POS                     25
+
+#define SPIDER_LINK_MON_SERVERS_DB_NAME_POS                   0
+#define SPIDER_LINK_MON_SERVERS_TABLE_NAME_POS                1
+#define SPIDER_LINK_MON_SERVERS_LINK_ID_POS                   2
+#define SPIDER_LINK_MON_SERVERS_SID_POS                       3
+#define SPIDER_LINK_MON_SERVERS_SERVER_POS                    4
+#define SPIDER_LINK_MON_SERVERS_SCHEME_POS                    5
+#define SPIDER_LINK_MON_SERVERS_HOST_POS                      6
+#define SPIDER_LINK_MON_SERVERS_PORT_POS                      7
+#define SPIDER_LINK_MON_SERVERS_SOCKET_POS                    8
+#define SPIDER_LINK_MON_SERVERS_USERNAME_POS                  9
+#define SPIDER_LINK_MON_SERVERS_PASSWORD_POS                 10
+#define SPIDER_LINK_MON_SERVERS_SSL_CA_POS                   11
+#define SPIDER_LINK_MON_SERVERS_SSL_CAPATH_POS               12
+#define SPIDER_LINK_MON_SERVERS_SSL_CERT_POS                 13
+#define SPIDER_LINK_MON_SERVERS_SSL_CIPHER_POS               14
+#define SPIDER_LINK_MON_SERVERS_SSL_KEY_POS                  15
+#define SPIDER_LINK_MON_SERVERS_SSL_VERIFY_SERVER_CERT_POS   16
+#define SPIDER_LINK_MON_SERVERS_DEFAULT_FILE_POS             17
+#define SPIDER_LINK_MON_SERVERS_DEFAULT_GROUP_POS            18
+#define SPIDER_LINK_MON_SERVERS_DSN_POS                      19
+
+#define SPIDER_LINK_FAILED_LOG_DB_NAME_POS                    0
+#define SPIDER_LINK_FAILED_LOG_TABLE_NAME_POS                 1
+#define SPIDER_LINK_FAILED_LOG_LINK_ID_POS                    2
+#define SPIDER_LINK_FAILED_LOG_FAILED_TIME_POS                3
+
+#define SPIDER_TABLE_POSITION_FOR_RECOVERY_DB_NAME_POS        0
+#define SPIDER_TABLE_POSITION_FOR_RECOVERY_TABLE_NAME_POS     1
+#define SPIDER_TABLE_POSITION_FOR_RECOVERY_FAILED_LINK_ID_POS 2
+#define SPIDER_TABLE_POSITION_FOR_RECOVERY_SOURCE_LINK_ID_POS 3
+#define SPIDER_TABLE_POSITION_FOR_RECOVERY_FILE_POS           4
+#define SPIDER_TABLE_POSITION_FOR_RECOVERY_POSITION_POS       5
+#define SPIDER_TABLE_POSITION_FOR_RECOVERY_GTID_POS           6
+
+#define SPIDER_TABLE_STS_DB_NAME_POS                          0
+#define SPIDER_TABLE_STS_TABLE_NAME_POS                       1
+#define SPIDER_TABLE_STS_DATA_FILE_LENGTH_POS                 2
+#define SPIDER_TABLE_STS_MAX_DATA_FILE_LENGTH_POS             3
+#define SPIDER_TABLE_STS_INDEX_FILE_LENGTH_POS                4
+#define SPIDER_TABLE_STS_RECORDS_POS                          5
+#define SPIDER_TABLE_STS_MEAN_REC_LENGTH_POS                  6
+#define SPIDER_TABLE_STS_CHECK_TIME_POS                       7
+#define SPIDER_TABLE_STS_CREATE_TIME_POS                      8
+#define SPIDER_TABLE_STS_UPDATE_TIME_POS                      9
+#define SPIDER_TABLE_STS_CHECKSUM_POS                        10
+
+#define SPIDER_TABLE_CRD_DB_NAME_POS                          0
+#define SPIDER_TABLE_CRD_TABLE_NAME_POS                       1
+#define SPIDER_TABLE_CRD_KEY_SEQ_POS                          2
+#define SPIDER_TABLE_CRD_CARDINALITY_POS                      3
+
+/**
+  Insert a Spider system table row.
+
+  @param  table             The spider system table.
+  @param  do_handle_error   TRUE if an error message should be printed
+                            before returning.
+
+  @return                   Error code returned by the write.
+*/
+
+inline int spider_write_sys_table_row(TABLE *table, bool do_handle_error = TRUE)
+{
+  int error_num;
+  THD *thd = table->in_use;
+
+  tmp_disable_binlog(thd); /* Do not replicate the low-level changes. */
+  error_num = table->file->ha_write_row(table->record[0]);
+  reenable_binlog(thd);
+
+  if (error_num && do_handle_error)
+    table->file->print_error(error_num, MYF(0));
+
+  return error_num;
+}
+
+/**
+  Update a Spider system table row.
+
+  @param  table             The spider system table.
+  @param  do_handle_error   TRUE if an error message should be printed
+                            before returning.
+
+  @return                   Error code returned by the update.
+*/
+
+inline int spider_update_sys_table_row(TABLE *table, bool do_handle_error = TRUE)
+{
+  int error_num;
+  THD *thd = table->in_use;
+
+  tmp_disable_binlog(thd); /* Do not replicate the low-level changes. */
+  error_num = table->file->ha_update_row(table->record[1], table->record[0]);
+  reenable_binlog(thd);
+
+  if (error_num && do_handle_error)
+  {
+    if (error_num == HA_ERR_RECORD_IS_THE_SAME)
+      error_num = 0;
+    else
+      table->file->print_error(error_num, MYF(0));
+  }
+
+  return error_num;
+}
+
+/**
+  Delete a Spider system table row.
+
+  @param  table             The spider system table.
+  @param  record_number     Location of the record: 0 or 1.
+  @param  do_handle_error   TRUE if an error message should be printed
+                            before returning.
+
+  @return                   Error code returned by the delete.
+*/
+
+inline int spider_delete_sys_table_row(TABLE *table, int record_number = 0,
+                                       bool do_handle_error = TRUE)
+{
+  int error_num;
+  THD *thd = table->in_use;
+
+  tmp_disable_binlog(thd); /* Do not replicate the low-level changes. */
+  error_num = table->file->ha_delete_row(table->record[record_number]);
+  reenable_binlog(thd);
+
+  if (error_num && do_handle_error)
+    table->file->print_error(error_num, MYF(0));
+
+  return error_num;
+}
+
+TABLE *spider_open_sys_table(
+  THD *thd,
+  const char *table_name,
+  int table_name_length,
+  bool write,
+  SPIDER_Open_tables_backup *open_tables_backup,
+  bool need_lock,
+  int *error_num
+) {
+  TABLE *table;
+  TABLE_LIST tables;
+#if MYSQL_VERSION_ID < 50500
+  TABLE_SHARE *table_share;
+  char table_key[MAX_DBKEY_LENGTH];
+  uint table_key_length;
+#endif
+  DBUG_ENTER("spider_open_sys_table");
+
+#if MYSQL_VERSION_ID < 50500
+  memset(&tables, 0, sizeof(TABLE_LIST));
+  SPIDER_TABLE_LIST_db_str(&tables) = (char*)"mysql";
+  SPIDER_TABLE_LIST_db_length(&tables) = sizeof("mysql") - 1;
+  SPIDER_TABLE_LIST_alias_str(&tables) =
+    SPIDER_TABLE_LIST_table_name_str(&tables) = (char *) table_name;
+  SPIDER_TABLE_LIST_table_name_length(&tables) = table_name_length;
+  tables.lock_type = (write ? TL_WRITE : TL_READ);
+#else
+#ifdef SPIDER_use_LEX_CSTRING_for_database_tablename_alias
+  LEX_CSTRING db_name =
+  {
+    "mysql",
+    sizeof("mysql") - 1
+  };
+  LEX_CSTRING tbl_name =
+  {
+    table_name,
+    (size_t) table_name_length
+  };
+  tables.init_one_table(&db_name, &tbl_name, 0, (write ? TL_WRITE : TL_READ));
+#else
+  tables.init_one_table(
+    "mysql", sizeof("mysql") - 1, table_name, table_name_length, table_name,
+    (write ? TL_WRITE : TL_READ));
+#endif
+#endif
+
+#if MYSQL_VERSION_ID < 50500
+  if (need_lock)
+  {
+#endif
+#if MYSQL_VERSION_ID < 50500
+    if (!(table = open_performance_schema_table(thd, &tables,
+      open_tables_backup)))
+#else
+    if (!(table = spider_sys_open_table(thd, &tables, open_tables_backup)))
+#endif
+    {
+      my_printf_error(ER_SPIDER_CANT_OPEN_SYS_TABLE_NUM,
+        ER_SPIDER_CANT_OPEN_SYS_TABLE_STR, MYF(0),
+        "mysql", table_name);
+      *error_num = ER_SPIDER_CANT_OPEN_SYS_TABLE_NUM;
+      DBUG_RETURN(NULL);
+    }
+#if MYSQL_VERSION_ID < 50500
+  } else {
+    SPIDER_reset_n_backup_open_tables_state(thd, open_tables_backup, NULL);
+
+    if (!(table = (TABLE*) spider_malloc(spider_current_trx, 12,
+      sizeof(*table), MYF(MY_WME))))
+    {
+      *error_num = HA_ERR_OUT_OF_MEM;
+      goto error_malloc;
+    }
+
+    table_key_length =
+      create_table_def_key(thd, table_key, &tables, FALSE);
+
+    if (!(table_share = get_table_share(thd,
+      &tables, table_key, table_key_length, 0, error_num)))
+      goto error;
+    if (open_table_from_share(thd, table_share, tables.alias,
+      (uint) (HA_OPEN_KEYFILE | HA_OPEN_RNDFILE | HA_GET_INDEX),
+      READ_KEYINFO | COMPUTE_TYPES | EXTRA_RECORD,
+      (uint) HA_OPEN_IGNORE_IF_LOCKED | HA_OPEN_FROM_SQL_LAYER,
+      table, FALSE)
+    ) {
+      release_table_share(table_share, RELEASE_NORMAL);
+      my_printf_error(ER_SPIDER_CANT_OPEN_SYS_TABLE_NUM,
+        ER_SPIDER_CANT_OPEN_SYS_TABLE_STR, MYF(0),
+        "mysql", table_name);
+      *error_num = ER_SPIDER_CANT_OPEN_SYS_TABLE_NUM;
+      goto error;
+    }
+  }
+#endif
+  switch (table_name_length)
+  {
+    case 9:
+      if (!memcmp(table_name, SPIDER_SYS_XA_TABLE_NAME_STR,
+        SPIDER_SYS_XA_TABLE_NAME_LEN))
+      {
+        DBUG_PRINT("info",("spider checking for SYS_XA"));
+        if (table->s->fields != SPIDER_SYS_XA_COL_CNT)
+        {
+          spider_close_sys_table(thd, table, open_tables_backup, need_lock);
+          table = NULL;
+          my_printf_error(ER_SPIDER_SYS_TABLE_VERSION_NUM,
+            ER_SPIDER_SYS_TABLE_VERSION_STR, MYF(0),
+            SPIDER_SYS_XA_TABLE_NAME_STR);
+          *error_num = ER_SPIDER_SYS_TABLE_VERSION_NUM;
+          goto error_col_num_chk;
+        }
+        break;
+      }
+      DBUG_ASSERT(0);
+      break;
+    case 13:
+      if (!memcmp(table_name, SPIDER_SYS_TABLES_TABLE_NAME_STR,
+        SPIDER_SYS_TABLES_TABLE_NAME_LEN))
+      {
+        DBUG_PRINT("info",("spider checking for SYS_TABLES"));
+        if (table->s->fields != SPIDER_SYS_TABLES_COL_CNT)
+        {
+          spider_close_sys_table(thd, table, open_tables_backup, need_lock);
+          table = NULL;
+          my_printf_error(ER_SPIDER_SYS_TABLE_VERSION_NUM,
+            ER_SPIDER_SYS_TABLE_VERSION_STR, MYF(0),
+            SPIDER_SYS_TABLES_TABLE_NAME_STR);
+          *error_num = ER_SPIDER_SYS_TABLE_VERSION_NUM;
+          goto error_col_num_chk;
+        }
+        break;
+      }
+      DBUG_ASSERT(0);
+      break;
+    case 16:
+      if (!memcmp(table_name, SPIDER_SYS_XA_MEMBER_TABLE_NAME_STR,
+        SPIDER_SYS_XA_MEMBER_TABLE_NAME_LEN))
+      {
+        DBUG_PRINT("info",("spider checking for SYS_XA_MEMBER"));
+        if (table->s->fields != SPIDER_SYS_XA_MEMBER_COL_CNT)
+        {
+          spider_close_sys_table(thd, table, open_tables_backup, need_lock);
+          table = NULL;
+          my_printf_error(ER_SPIDER_SYS_TABLE_VERSION_NUM,
+            ER_SPIDER_SYS_TABLE_VERSION_STR, MYF(0),
+            SPIDER_SYS_XA_MEMBER_TABLE_NAME_STR);
+          *error_num = ER_SPIDER_SYS_TABLE_VERSION_NUM;
+          goto error_col_num_chk;
+        }
+        break;
+      }
+      if (!memcmp(table_name, SPIDER_SYS_TABLE_STS_TABLE_NAME_STR,
+        SPIDER_SYS_TABLE_STS_TABLE_NAME_LEN))
+      {
+        DBUG_PRINT("info",("spider checking for SYS_TABLE_STS"));
+        if (table->s->fields != SPIDER_SYS_TABLE_STS_COL_CNT)
+        {
+          spider_close_sys_table(thd, table, open_tables_backup, need_lock);
+          table = NULL;
+          my_printf_error(ER_SPIDER_SYS_TABLE_VERSION_NUM,
+            ER_SPIDER_SYS_TABLE_VERSION_STR, MYF(0),
+            SPIDER_SYS_TABLE_STS_TABLE_NAME_STR);
+          *error_num = ER_SPIDER_SYS_TABLE_VERSION_NUM;
+          goto error_col_num_chk;
+        }
+        break;
+      }
+      if (!memcmp(table_name, SPIDER_SYS_TABLE_CRD_TABLE_NAME_STR,
+        SPIDER_SYS_TABLE_CRD_TABLE_NAME_LEN))
+      {
+        DBUG_PRINT("info",("spider checking for SYS_TABLE_CRD"));
+        if (table->s->fields != SPIDER_SYS_TABLE_CRD_COL_CNT)
+        {
+          spider_close_sys_table(thd, table, open_tables_backup, need_lock);
+          table = NULL;
+          my_printf_error(ER_SPIDER_SYS_TABLE_VERSION_NUM,
+            ER_SPIDER_SYS_TABLE_VERSION_STR, MYF(0),
+            SPIDER_SYS_TABLE_CRD_TABLE_NAME_STR);
+          *error_num = ER_SPIDER_SYS_TABLE_VERSION_NUM;
+          goto error_col_num_chk;
+        }
+        break;
+      }
+      DBUG_ASSERT(0);
+      break;
+    case 20:
+      if (!memcmp(table_name, SPIDER_SYS_XA_FAILED_TABLE_NAME_STR,
+        SPIDER_SYS_XA_FAILED_TABLE_NAME_LEN))
+      {
+        DBUG_PRINT("info",("spider checking for SYS_XA_FAILED"));
+        if (table->s->fields != SPIDER_SYS_XA_FAILED_TABLE_COL_CNT)
+        {
+          spider_close_sys_table(thd, table, open_tables_backup, need_lock);
+          table = NULL;
+          my_printf_error(ER_SPIDER_SYS_TABLE_VERSION_NUM,
+            ER_SPIDER_SYS_TABLE_VERSION_STR, MYF(0),
+            SPIDER_SYS_XA_FAILED_TABLE_NAME_STR);
+          *error_num = ER_SPIDER_SYS_TABLE_VERSION_NUM;
+          goto error_col_num_chk;
+        }
+        break;
+      }
+      DBUG_ASSERT(0);
+      break;
+    case 21:
+      if (!memcmp(table_name, SPIDER_SYS_RW_TBLS_TABLE_NAME_STR,
+        SPIDER_SYS_RW_TBLS_TABLE_NAME_LEN))
+      {
+        DBUG_PRINT("info",("spider checking for SYS_RW_TBLS"));
+        if (table->s->fields != SPIDER_SYS_RW_TBLS_COL_CNT)
+        {
+          spider_close_sys_table(thd, table, open_tables_backup, need_lock);
+          table = NULL;
+          my_printf_error(ER_SPIDER_SYS_TABLE_VERSION_NUM,
+            ER_SPIDER_SYS_TABLE_VERSION_STR, MYF(0),
+            SPIDER_SYS_RW_TBLS_TABLE_NAME_STR);
+          *error_num = ER_SPIDER_SYS_TABLE_VERSION_NUM;
+          goto error_col_num_chk;
+        }
+      }
+      DBUG_ASSERT(0);
+      break;
+    case 22:
+      if (!memcmp(table_name, SPIDER_SYS_LINK_FAILED_TABLE_NAME_STR,
+        SPIDER_SYS_LINK_FAILED_TABLE_NAME_LEN))
+      {
+        DBUG_PRINT("info",("spider checking for SYS_LINK_FAILED"));
+        if (table->s->fields != SPIDER_SYS_LINK_FAILED_TABLE_COL_CNT)
+        {
+          spider_close_sys_table(thd, table, open_tables_backup, need_lock);
+          table = NULL;
+          my_printf_error(ER_SPIDER_SYS_TABLE_VERSION_NUM,
+            ER_SPIDER_SYS_TABLE_VERSION_STR, MYF(0),
+            SPIDER_SYS_LINK_FAILED_TABLE_NAME_STR);
+          *error_num = ER_SPIDER_SYS_TABLE_VERSION_NUM;
+          goto error_col_num_chk;
+        }
+        break;
+      }
+      DBUG_ASSERT(0);
+      break;
+    case 23:
+      if (!memcmp(table_name, SPIDER_SYS_LINK_MON_TABLE_NAME_STR,
+        SPIDER_SYS_LINK_MON_TABLE_NAME_LEN))
+      {
+        DBUG_PRINT("info",("spider checking for SYS_LINK_MON"));
+        if (table->s->fields != SPIDER_SYS_LINK_MON_TABLE_COL_CNT)
+        {
+          spider_close_sys_table(thd, table, open_tables_backup, need_lock);
+          table = NULL;
+          my_printf_error(ER_SPIDER_SYS_TABLE_VERSION_NUM,
+            ER_SPIDER_SYS_TABLE_VERSION_STR, MYF(0),
+            SPIDER_SYS_LINK_MON_TABLE_NAME_STR);
+          *error_num = ER_SPIDER_SYS_TABLE_VERSION_NUM;
+          goto error_col_num_chk;
+        }
+        break;
+      }
+      if (!memcmp(table_name, SPIDER_SYS_RWN_TBLS_TABLE_NAME_STR,
+        SPIDER_SYS_RWN_TBLS_TABLE_NAME_LEN))
+      {
+        DBUG_PRINT("info",("spider checking for SYS_RWN_TBLS"));
+        if (table->s->fields != SPIDER_SYS_RWN_TBLS_COL_CNT)
+        {
+          spider_close_sys_table(thd, table, open_tables_backup, need_lock);
+          table = NULL;
+          my_printf_error(ER_SPIDER_SYS_TABLE_VERSION_NUM,
+            ER_SPIDER_SYS_TABLE_VERSION_STR, MYF(0),
+            SPIDER_SYS_RWN_TBLS_TABLE_NAME_STR);
+          *error_num = ER_SPIDER_SYS_TABLE_VERSION_NUM;
+          goto error_col_num_chk;
+        }
+        break;
+      }
+      DBUG_ASSERT(0);
+      break;
+    case 27:
+      if (!memcmp(table_name, SPIDER_SYS_RW_TBL_TBLS_TABLE_NAME_STR,
+        SPIDER_SYS_RW_TBL_TBLS_TABLE_NAME_LEN))
+      {
+        DBUG_PRINT("info",("spider checking for SYS_RW_TBL_TBLS"));
+        if (table->s->fields != SPIDER_SYS_RW_TBL_TBLS_COL_CNT)
+        {
+          spider_close_sys_table(thd, table, open_tables_backup, need_lock);
+          table = NULL;
+          my_printf_error(ER_SPIDER_SYS_TABLE_VERSION_NUM,
+            ER_SPIDER_SYS_TABLE_VERSION_STR, MYF(0),
+            SPIDER_SYS_RW_TBL_TBLS_TABLE_NAME_STR);
+          *error_num = ER_SPIDER_SYS_TABLE_VERSION_NUM;
+          goto error_col_num_chk;
+        }
+        break;
+      }
+      DBUG_ASSERT(0);
+      break;
+    case 31:
+      if (!memcmp(table_name, SPIDER_SYS_RW_TBL_PTTS_TABLE_NAME_STR,
+        SPIDER_SYS_RW_TBL_PTTS_TABLE_NAME_LEN))
+      {
+        DBUG_PRINT("info",("spider checking for SYS_RW_TBL_PTTS"));
+        if (table->s->fields != SPIDER_SYS_RW_TBL_PTTS_COL_CNT)
+        {
+          spider_close_sys_table(thd, table, open_tables_backup, need_lock);
+          table = NULL;
+          my_printf_error(ER_SPIDER_SYS_TABLE_VERSION_NUM,
+            ER_SPIDER_SYS_TABLE_VERSION_STR, MYF(0),
+            SPIDER_SYS_RW_TBL_PTTS_TABLE_NAME_STR);
+          *error_num = ER_SPIDER_SYS_TABLE_VERSION_NUM;
+          goto error_col_num_chk;
+        }
+        break;
+      }
+      DBUG_ASSERT(0);
+      break;
+    case 34:
+      if (!memcmp(table_name, SPIDER_SYS_POS_FOR_RECOVERY_TABLE_NAME_STR,
+        SPIDER_SYS_POS_FOR_RECOVERY_TABLE_NAME_LEN))
+      {
+        DBUG_PRINT("info",("spider checking for SYS_POS_FOR_RECOVERY"));
+        if (table->s->fields != SPIDER_SYS_POS_FOR_RECOVERY_TABLE_COL_CNT)
+        {
+          spider_close_sys_table(thd, table, open_tables_backup, need_lock);
+          table = NULL;
+          my_printf_error(ER_SPIDER_SYS_TABLE_VERSION_NUM,
+            ER_SPIDER_SYS_TABLE_VERSION_STR, MYF(0),
+            SPIDER_SYS_POS_FOR_RECOVERY_TABLE_NAME_STR);
+          *error_num = ER_SPIDER_SYS_TABLE_VERSION_NUM;
+          goto error_col_num_chk;
+        }
+        break;
+      }
+      if (!memcmp(table_name, SPIDER_SYS_RW_TBL_SPTTS_TABLE_NAME_STR,
+        SPIDER_SYS_RW_TBL_SPTTS_TABLE_NAME_LEN))
+      {
+        DBUG_PRINT("info",("spider checking for SYS_RW_TBL_SPTTS"));
+        if (table->s->fields != SPIDER_SYS_RW_TBL_SPTTS_COL_CNT)
+        {
+          spider_close_sys_table(thd, table, open_tables_backup, need_lock);
+          table = NULL;
+          my_printf_error(ER_SPIDER_SYS_TABLE_VERSION_NUM,
+            ER_SPIDER_SYS_TABLE_VERSION_STR, MYF(0),
+            SPIDER_SYS_RW_TBL_SPTTS_TABLE_NAME_STR);
+          *error_num = ER_SPIDER_SYS_TABLE_VERSION_NUM;
+          goto error_col_num_chk;
+        }
+        break;
+      }
+      DBUG_ASSERT(0);
+      break;
+    default:
+      DBUG_ASSERT(0);
+      break;
+  }
+  DBUG_RETURN(table);
+
+#if MYSQL_VERSION_ID < 50500
+error:
+  spider_free(spider_current_trx, table, MYF(0));
+error_malloc:
+  SPIDER_restore_backup_open_tables_state(thd, open_tables_backup);
+#endif
+error_col_num_chk:
+  DBUG_RETURN(NULL);
+}
+
+void spider_close_sys_table(
+  THD *thd,
+  TABLE *table,
+  SPIDER_Open_tables_backup *open_tables_backup,
+  bool need_lock
+) {
+  DBUG_ENTER("spider_close_sys_table");
+#if MYSQL_VERSION_ID < 50500
+  if (need_lock)
+  {
+    close_performance_schema_table(thd, open_tables_backup);
+  } else {
+    table->file->ha_reset();
+    closefrm(table, TRUE);
+    spider_free(spider_current_trx, table, MYF(0));
+    SPIDER_restore_backup_open_tables_state(thd, open_tables_backup);
+  }
+#else
+  spider_sys_close_table(thd, open_tables_backup);
+#endif
+  DBUG_VOID_RETURN;
+}
+
+#if MYSQL_VERSION_ID < 50500
+#else
+bool spider_sys_open_and_lock_tables(
+  THD *thd,
+  TABLE_LIST **tables,
+  SPIDER_Open_tables_backup *open_tables_backup
+) {
+  uint counter;
+  uint flags = MYSQL_OPEN_IGNORE_GLOBAL_READ_LOCK |
+    MYSQL_LOCK_IGNORE_GLOBAL_READ_ONLY | MYSQL_OPEN_IGNORE_FLUSH |
+    MYSQL_LOCK_IGNORE_TIMEOUT | MYSQL_LOCK_LOG_TABLE;
+  ulonglong utime_after_lock_backup = thd->utime_after_lock;
+  DBUG_ENTER("spider_sys_open_and_lock_tables");
+  SPIDER_reset_n_backup_open_tables_state(thd, open_tables_backup, TRUE);
+  if (open_tables(thd, tables, &counter, flags))
+  {
+    SPIDER_restore_backup_open_tables_state(thd, open_tables_backup);
+    thd->utime_after_lock = utime_after_lock_backup;
+    DBUG_RETURN(TRUE);
+  }
+  if (lock_tables(thd, *tables, counter, flags))
+  {
+    SPIDER_sys_close_thread_tables(thd);
+    SPIDER_restore_backup_open_tables_state(thd, open_tables_backup);
+    thd->utime_after_lock = utime_after_lock_backup;
+    DBUG_RETURN(TRUE);
+  }
+  thd->utime_after_lock = utime_after_lock_backup;
+  DBUG_RETURN(FALSE);
+}
+
+TABLE *spider_sys_open_table(
+  THD *thd,
+  TABLE_LIST *tables,
+  SPIDER_Open_tables_backup *open_tables_backup
+) {
+  TABLE *table;
+  ulonglong utime_after_lock_backup = thd->utime_after_lock;
+  DBUG_ENTER("spider_sys_open_table");
+  if (open_tables_backup)
+  {
+    SPIDER_reset_n_backup_open_tables_state(thd, open_tables_backup, NULL);
+  }
+  if ((table = open_ltable(thd, tables, tables->lock_type,
+    MYSQL_OPEN_IGNORE_GLOBAL_READ_LOCK | MYSQL_LOCK_IGNORE_GLOBAL_READ_ONLY |
+    MYSQL_OPEN_IGNORE_FLUSH | MYSQL_LOCK_IGNORE_TIMEOUT | MYSQL_LOCK_LOG_TABLE
+  ))) {
+    table->use_all_columns();
+    table->s->no_replicate = 1;
+  } else if (open_tables_backup)
+  {
+    SPIDER_restore_backup_open_tables_state(thd, open_tables_backup);
+  }
+  thd->utime_after_lock = utime_after_lock_backup;
+  DBUG_RETURN(table);
+}
+
+void spider_sys_close_table(
+  THD *thd,
+  SPIDER_Open_tables_backup *open_tables_backup
+) {
+  DBUG_ENTER("spider_sys_close_table");
+  if (open_tables_backup)
+  {
+    SPIDER_sys_close_thread_tables(thd);
+    SPIDER_restore_backup_open_tables_state(thd, open_tables_backup);
+  }
+  DBUG_VOID_RETURN;
+}
+#endif
+
+int spider_sys_index_init(
+  TABLE *table,
+  uint idx,
+  bool sorted
+) {
+  DBUG_ENTER("spider_sys_index_init");
+  DBUG_RETURN(table->file->ha_index_init(idx, sorted));
+}
+
+int spider_sys_index_end(
+  TABLE *table
+) {
+  DBUG_ENTER("spider_sys_index_end");
+  DBUG_RETURN(table->file->ha_index_end());
+}
+
+int spider_sys_rnd_init(
+  TABLE *table,
+  bool scan
+) {
+  DBUG_ENTER("spider_sys_rnd_init");
+  DBUG_RETURN(table->file->ha_rnd_init(scan));
+}
+
+int spider_sys_rnd_end(
+  TABLE *table
+) {
+  DBUG_ENTER("spider_sys_rnd_end");
+  DBUG_RETURN(table->file->ha_rnd_end());
+}
+
+int spider_check_sys_table(
+  TABLE *table,
+  char *table_key
+) {
+  DBUG_ENTER("spider_check_sys_table");
+
+  key_copy(
+    (uchar *) table_key,
+    table->record[0],
+    table->key_info,
+    table->key_info->key_length);
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 50200
+  DBUG_RETURN(table->file->ha_index_read_idx_map(
+    table->record[0], 0, (uchar *) table_key,
+    HA_WHOLE_KEY, HA_READ_KEY_EXACT));
+#else
+  DBUG_RETURN(table->file->index_read_idx_map(
+    table->record[0], 0, (uchar *) table_key,
+    HA_WHOLE_KEY, HA_READ_KEY_EXACT));
+#endif
+}
+
+int spider_check_sys_table_with_find_flag(
+  TABLE *table,
+  char *table_key,
+  enum ha_rkey_function find_flag
+) {
+  DBUG_ENTER("spider_check_sys_table");
+
+  key_copy(
+    (uchar *) table_key,
+    table->record[0],
+    table->key_info,
+    table->key_info->key_length);
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 50200
+  DBUG_RETURN(table->file->ha_index_read_idx_map(
+    table->record[0], 0, (uchar *) table_key,
+    HA_WHOLE_KEY, find_flag));
+#else
+  DBUG_RETURN(table->file->index_read_idx_map(
+    table->record[0], 0, (uchar *) table_key,
+    HA_WHOLE_KEY, find_flag));
+#endif
+}
+
+int spider_check_sys_table_for_update_all_columns(
+  TABLE *table,
+  char *table_key
+) {
+  DBUG_ENTER("spider_check_sys_table_for_update_all_columns");
+
+  key_copy(
+    (uchar *) table_key,
+    table->record[0],
+    table->key_info,
+    table->key_info->key_length);
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 50200
+  DBUG_RETURN(table->file->ha_index_read_idx_map(
+    table->record[1], 0, (uchar *) table_key,
+    HA_WHOLE_KEY, HA_READ_KEY_EXACT));
+#else
+  DBUG_RETURN(table->file->index_read_idx_map(
+    table->record[1], 0, (uchar *) table_key,
+    HA_WHOLE_KEY, HA_READ_KEY_EXACT));
+#endif
+}
+
+int spider_get_sys_table_by_idx(
+  TABLE *table,
+  char *table_key,
+  const int idx,
+  const int col_count
+) {
+  int error_num;
+  uint key_length;
+  KEY *key_info = table->key_info + idx;
+  DBUG_ENTER("spider_get_sys_table_by_idx");
+  if ((error_num = spider_sys_index_init(table, idx, FALSE)))
+    DBUG_RETURN(error_num);
+
+  if ((int) spider_user_defined_key_parts(key_info) == col_count)
+  {
+    key_length = key_info->key_length;
+  } else {
+    int roop_count;
+    key_length = 0;
+    for (roop_count = 0; roop_count < col_count; ++roop_count)
+    {
+      key_length += key_info->key_part[roop_count].store_length;
+    }
+  }
+
+  key_copy(
+    (uchar *) table_key,
+    table->record[0],
+    key_info,
+    key_length);
+
+  if (
+/*
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 50200
+    (error_num = table->file->ha_index_read_idx_map(
+      table->record[0], idx, (uchar *) table_key,
+      make_prev_keypart_map(col_count), HA_READ_KEY_EXACT))
+#else
+    (error_num = table->file->index_read_idx_map(
+      table->record[0], idx, (uchar *) table_key,
+      make_prev_keypart_map(col_count), HA_READ_KEY_EXACT))
+#endif
+*/
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 50200
+    (error_num = table->file->ha_index_read_map(
+      table->record[0], (uchar *) table_key,
+      make_prev_keypart_map(col_count), HA_READ_KEY_EXACT))
+#else
+    (error_num = table->file->index_read_map(
+      table->record[0], (uchar *) table_key,
+      make_prev_keypart_map(col_count), HA_READ_KEY_EXACT))
+#endif
+  ) {
+    spider_sys_index_end(table);
+    DBUG_RETURN(error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_sys_index_next_same(
+  TABLE *table,
+  char *table_key
+) {
+  DBUG_ENTER("spider_sys_index_next_same");
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 50200
+  DBUG_RETURN(table->file->ha_index_next_same(
+    table->record[0],
+    (const uchar*) table_key,
+    table->key_info->key_length));
+#else
+  DBUG_RETURN(table->file->index_next_same(
+    table->record[0],
+    (const uchar*) table_key,
+    table->key_info->key_length));
+#endif
+}
+
+int spider_sys_index_first(
+  TABLE *table,
+  const int idx
+) {
+  int error_num;
+  DBUG_ENTER("spider_sys_index_first");
+  if ((error_num = spider_sys_index_init(table, idx, FALSE)))
+    DBUG_RETURN(error_num);
+
+  if (
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 50200
+    (error_num = table->file->ha_index_first(table->record[0]))
+#else
+    (error_num = table->file->index_first(table->record[0]))
+#endif
+  ) {
+    spider_sys_index_end(table);
+    DBUG_RETURN(error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_sys_index_last(
+  TABLE *table,
+  const int idx
+) {
+  int error_num;
+  DBUG_ENTER("spider_sys_index_last");
+  if ((error_num = spider_sys_index_init(table, idx, FALSE)))
+    DBUG_RETURN(error_num);
+
+  if (
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 50200
+    (error_num = table->file->ha_index_last(table->record[0]))
+#else
+    (error_num = table->file->index_last(table->record[0]))
+#endif
+  ) {
+    spider_sys_index_end(table);
+    DBUG_RETURN(error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_sys_index_next(
+  TABLE *table
+) {
+  DBUG_ENTER("spider_sys_index_next");
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 50200
+  DBUG_RETURN(table->file->ha_index_next(table->record[0]));
+#else
+  DBUG_RETURN(table->file->index_next(table->record[0]));
+#endif
+}
+
+void spider_store_xa_pk(
+  TABLE *table,
+  XID *xid
+) {
+  DBUG_ENTER("spider_store_xa_pk");
+  table->field[SPIDER_XA_FORMAT_ID_POS]->store(xid->formatID);
+  table->field[SPIDER_XA_GTRID_LENGTH_POS]->store(xid->gtrid_length);
+  table->field[SPIDER_XA_DATA_POS]->store(
+    xid->data,
+    (uint) xid->gtrid_length + xid->bqual_length,
+    system_charset_info);
+  DBUG_VOID_RETURN;
+}
+
+void spider_store_xa_bqual_length(
+  TABLE *table,
+  XID *xid
+) {
+  DBUG_ENTER("spider_store_xa_bqual_length");
+  table->field[SPIDER_XA_BQUAL_LENGTH_POS]->store(xid->bqual_length);
+  DBUG_VOID_RETURN;
+}
+
+void spider_store_xa_status(
+  TABLE *table,
+  const char *status
+) {
+  DBUG_ENTER("spider_store_xa_status");
+  table->field[SPIDER_XA_STATUS_POS]->store(
+    status,
+    (uint) strlen(status),
+    system_charset_info);
+  DBUG_VOID_RETURN;
+}
+
+void spider_store_xa_member_pk(
+  TABLE *table,
+  XID *xid,
+  SPIDER_CONN *conn
+) {
+  DBUG_ENTER("spider_store_xa_member_pk");
+  table->field[SPIDER_XA_MEMBER_FORMAT_ID_POS]->store(xid->formatID);
+  table->field[SPIDER_XA_MEMBER_GTRID_LENGTH_POS]->store(xid->gtrid_length);
+  table->field[SPIDER_XA_MEMBER_DATA_POS]->store(
+    xid->data,
+    (uint) xid->gtrid_length + xid->bqual_length,
+    system_charset_info);
+  table->field[SPIDER_XA_MEMBER_HOST_POS]->store(
+    conn->tgt_host,
+    (uint) conn->tgt_host_length,
+    system_charset_info);
+  table->field[SPIDER_XA_MEMBER_PORT_POS]->store(
+    conn->tgt_port);
+  table->field[SPIDER_XA_MEMBER_SOCKET_POS]->store(
+    conn->tgt_socket,
+    (uint) conn->tgt_socket_length,
+    system_charset_info);
+  DBUG_VOID_RETURN;
+}
+
+void spider_store_xa_member_info(
+  TABLE *table,
+  XID *xid,
+  SPIDER_CONN *conn
+) {
+  DBUG_ENTER("spider_store_xa_member_info");
+  table->field[SPIDER_XA_MEMBER_BQUAL_LENGTH_POS]->store(xid->bqual_length);
+  table->field[SPIDER_XA_MEMBER_SCHEME_POS]->store(
+    conn->tgt_wrapper,
+    (uint) conn->tgt_wrapper_length,
+    system_charset_info);
+  table->field[SPIDER_XA_MEMBER_USERNAME_POS]->store(
+    conn->tgt_username,
+    (uint) conn->tgt_username_length,
+    system_charset_info);
+  table->field[SPIDER_XA_MEMBER_PASSWORD_POS]->store(
+    conn->tgt_password,
+    (uint) conn->tgt_password_length,
+    system_charset_info);
+  if (conn->tgt_ssl_ca)
+  {
+    table->field[SPIDER_XA_MEMBER_SSL_CA_POS]->set_notnull();
+    table->field[SPIDER_XA_MEMBER_SSL_CA_POS]->store(
+      conn->tgt_ssl_ca,
+      (uint) conn->tgt_ssl_ca_length,
+      system_charset_info);
+  } else {
+    table->field[SPIDER_XA_MEMBER_SSL_CA_POS]->set_null();
+    table->field[SPIDER_XA_MEMBER_SSL_CA_POS]->reset();
+  }
+  if (conn->tgt_ssl_capath)
+  {
+    table->field[SPIDER_XA_MEMBER_SSL_CAPATH_POS]->set_notnull();
+    table->field[SPIDER_XA_MEMBER_SSL_CAPATH_POS]->store(
+      conn->tgt_ssl_capath,
+      (uint) conn->tgt_ssl_capath_length,
+      system_charset_info);
+  } else {
+    table->field[SPIDER_XA_MEMBER_SSL_CAPATH_POS]->set_null();
+    table->field[SPIDER_XA_MEMBER_SSL_CAPATH_POS]->reset();
+  }
+  if (conn->tgt_ssl_cert)
+  {
+    table->field[SPIDER_XA_MEMBER_SSL_CERT_POS]->set_notnull();
+    table->field[SPIDER_XA_MEMBER_SSL_CERT_POS]->store(
+      conn->tgt_ssl_cert,
+      (uint) conn->tgt_ssl_cert_length,
+      system_charset_info);
+  } else {
+    table->field[SPIDER_XA_MEMBER_SSL_CERT_POS]->set_null();
+    table->field[SPIDER_XA_MEMBER_SSL_CERT_POS]->reset();
+  }
+  if (conn->tgt_ssl_cipher)
+  {
+    table->field[SPIDER_XA_MEMBER_SSL_CIPHER_POS]->set_notnull();
+    table->field[SPIDER_XA_MEMBER_SSL_CIPHER_POS]->store(
+      conn->tgt_ssl_cipher,
+      (uint) conn->tgt_ssl_cipher_length,
+      system_charset_info);
+  } else {
+    table->field[SPIDER_XA_MEMBER_SSL_CIPHER_POS]->set_null();
+    table->field[SPIDER_XA_MEMBER_SSL_CIPHER_POS]->reset();
+  }
+  if (conn->tgt_ssl_key)
+  {
+    table->field[SPIDER_XA_MEMBER_SSL_KEY_POS]->set_notnull();
+    table->field[SPIDER_XA_MEMBER_SSL_KEY_POS]->store(
+      conn->tgt_ssl_key,
+      (uint) conn->tgt_ssl_key_length,
+      system_charset_info);
+  } else {
+    table->field[SPIDER_XA_MEMBER_SSL_KEY_POS]->set_null();
+    table->field[SPIDER_XA_MEMBER_SSL_KEY_POS]->reset();
+  }
+  if (conn->tgt_ssl_vsc >= 0)
+  {
+    table->field[SPIDER_XA_MEMBER_SSL_VERIFY_SERVER_CERT_POS]->set_notnull();
+    table->field[SPIDER_XA_MEMBER_SSL_VERIFY_SERVER_CERT_POS]->store(
+      conn->tgt_ssl_vsc);
+  } else {
+    table->field[SPIDER_XA_MEMBER_SSL_VERIFY_SERVER_CERT_POS]->set_null();
+    table->field[SPIDER_XA_MEMBER_SSL_VERIFY_SERVER_CERT_POS]->reset();
+  }
+  if (conn->tgt_default_file)
+  {
+    table->field[SPIDER_XA_MEMBER_DEFAULT_FILE_POS]->set_notnull();
+    table->field[SPIDER_XA_MEMBER_DEFAULT_FILE_POS]->store(
+      conn->tgt_default_file,
+      (uint) conn->tgt_default_file_length,
+      system_charset_info);
+  } else {
+    table->field[SPIDER_XA_MEMBER_DEFAULT_FILE_POS]->set_null();
+    table->field[SPIDER_XA_MEMBER_DEFAULT_FILE_POS]->reset();
+  }
+  if (conn->tgt_default_group)
+  {
+    table->field[SPIDER_XA_MEMBER_DEFAULT_GROUP_POS]->set_notnull();
+    table->field[SPIDER_XA_MEMBER_DEFAULT_GROUP_POS]->store(
+      conn->tgt_default_group,
+      (uint) conn->tgt_default_group_length,
+      system_charset_info);
+  } else {
+    table->field[SPIDER_XA_MEMBER_DEFAULT_GROUP_POS]->set_null();
+    table->field[SPIDER_XA_MEMBER_DEFAULT_GROUP_POS]->reset();
+  }
+  if (conn->tgt_dsn)
+  {
+    table->field[SPIDER_XA_MEMBER_DSN_POS]->set_notnull();
+    table->field[SPIDER_XA_MEMBER_DSN_POS]->store(
+      conn->tgt_dsn,
+      (uint) conn->tgt_dsn_length,
+      system_charset_info);
+  } else {
+    table->field[SPIDER_XA_MEMBER_DSN_POS]->set_null();
+    table->field[SPIDER_XA_MEMBER_DSN_POS]->reset();
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_store_tables_name(
+  TABLE *table,
+  const char *name,
+  const uint name_length
+) {
+  const char *ptr_db, *ptr_table;
+  my_ptrdiff_t ptr_diff_db, ptr_diff_table;
+  DBUG_ENTER("spider_store_tables_name");
+  if (name[0] == FN_CURLIB && name[1] == FN_LIBCHAR)
+  {
+    ptr_db = strchr(name, FN_LIBCHAR);
+    ptr_db++;
+    ptr_diff_db = PTR_BYTE_DIFF(ptr_db, name);
+    DBUG_PRINT("info",("spider ptr_diff_db = %lld", (longlong) ptr_diff_db));
+    ptr_table = strchr(ptr_db, FN_LIBCHAR);
+    ptr_table++;
+    ptr_diff_table = PTR_BYTE_DIFF(ptr_table, ptr_db);
+    DBUG_PRINT("info",("spider ptr_diff_table = %lld",
+      (longlong) ptr_diff_table));
+  } else {
+    DBUG_PRINT("info",("spider temporary table"));
+    ptr_db = "";
+    ptr_diff_db = 1;
+    ptr_table = "";
+    ptr_diff_table = 1;
+  }
+  table->field[SPIDER_TABLES_DB_NAME_POS]->store(
+    ptr_db,
+    (uint)(ptr_diff_table - 1),
+    system_charset_info);
+  DBUG_PRINT("info",("spider field[%u]->null_bit = %d",
+    SPIDER_TABLES_DB_NAME_POS,
+    table->field[SPIDER_TABLES_DB_NAME_POS]->null_bit));
+  table->field[SPIDER_TABLES_TABLE_NAME_POS]->store(
+    ptr_table,
+    (uint) ((my_ptrdiff_t) name_length - ptr_diff_db - ptr_diff_table),
+    system_charset_info);
+  DBUG_PRINT("info",("spider field[%u]->null_bit = %d",
+    SPIDER_TABLES_TABLE_NAME_POS,
+    table->field[SPIDER_TABLES_TABLE_NAME_POS]->null_bit));
+  DBUG_VOID_RETURN;
+}
+
+void spider_store_db_and_table_name(
+  TABLE *table,
+  const char *db_name,
+  const uint db_name_length,
+  const char *table_name,
+  const uint table_name_length
+) {
+  DBUG_ENTER("spider_store_db_and_table_name");
+  table->field[SPIDER_TABLES_DB_NAME_POS]->store(
+    db_name,
+    db_name_length,
+    system_charset_info);
+  DBUG_PRINT("info",("spider field[%u]->null_bit = %d",
+    SPIDER_TABLES_DB_NAME_POS,
+    table->field[SPIDER_TABLES_DB_NAME_POS]->null_bit));
+  table->field[SPIDER_TABLES_TABLE_NAME_POS]->store(
+    table_name,
+    table_name_length,
+    system_charset_info);
+  DBUG_PRINT("info",("spider field[%u]->null_bit = %d",
+    SPIDER_TABLES_TABLE_NAME_POS,
+    table->field[SPIDER_TABLES_TABLE_NAME_POS]->null_bit));
+  DBUG_VOID_RETURN;
+}
+
+void spider_store_tables_link_idx(
+  TABLE *table,
+  int link_idx
+) {
+  DBUG_ENTER("spider_store_tables_link_idx");
+  table->field[SPIDER_TABLES_LINK_ID_POS]->set_notnull();
+  table->field[SPIDER_TABLES_LINK_ID_POS]->store(link_idx);
+  DBUG_VOID_RETURN;
+}
+
+void spider_store_tables_link_idx_str(
+  TABLE *table,
+  const char *link_idx,
+  const uint link_idx_length
+) {
+  DBUG_ENTER("spider_store_tables_link_idx_str");
+  table->field[SPIDER_TABLES_LINK_ID_POS]->store(
+    link_idx,
+    link_idx_length,
+    system_charset_info);
+  DBUG_PRINT("info",("spider field[%u]->null_bit = %d",
+    SPIDER_TABLES_LINK_ID_POS,
+    table->field[SPIDER_TABLES_LINK_ID_POS]->null_bit));
+  DBUG_VOID_RETURN;
+}
+
+void spider_store_tables_static_link_id(
+  TABLE *table,
+  const char *static_link_id,
+  const uint static_link_id_length
+) {
+  DBUG_ENTER("spider_store_tables_static_link_id");
+  if (static_link_id)
+  {
+    table->field[SPIDER_TABLES_STATIC_LINK_ID_POS]->set_notnull();
+    table->field[SPIDER_TABLES_STATIC_LINK_ID_POS]->store(
+      static_link_id,
+      static_link_id_length,
+      system_charset_info);
+  } else {
+    table->field[SPIDER_TABLES_STATIC_LINK_ID_POS]->set_null();
+    table->field[SPIDER_TABLES_STATIC_LINK_ID_POS]->reset();
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_store_tables_priority(
+  TABLE *table,
+  longlong priority
+) {
+  DBUG_ENTER("spider_store_tables_priority");
+  DBUG_PRINT("info",("spider priority = %lld", priority));
+  table->field[SPIDER_TABLES_PRIORITY_POS]->store(priority, FALSE);
+  DBUG_VOID_RETURN;
+}
+
+void spider_store_tables_connect_info(
+  TABLE *table,
+  SPIDER_ALTER_TABLE *alter_table,
+  int link_idx
+) {
+  DBUG_ENTER("spider_store_tables_connect_info");
+  if (alter_table->tmp_server_names[link_idx])
+  {
+    table->field[SPIDER_TABLES_SERVER_POS]->set_notnull();
+    table->field[SPIDER_TABLES_SERVER_POS]->store(
+      alter_table->tmp_server_names[link_idx],
+      (uint) alter_table->tmp_server_names_lengths[link_idx],
+      system_charset_info);
+  } else {
+    table->field[SPIDER_TABLES_SERVER_POS]->set_null();
+    table->field[SPIDER_TABLES_SERVER_POS]->reset();
+  }
+  if (alter_table->tmp_tgt_wrappers[link_idx])
+  {
+    table->field[SPIDER_TABLES_SCHEME_POS]->set_notnull();
+    table->field[SPIDER_TABLES_SCHEME_POS]->store(
+      alter_table->tmp_tgt_wrappers[link_idx],
+      (uint) alter_table->tmp_tgt_wrappers_lengths[link_idx],
+      system_charset_info);
+  } else {
+    table->field[SPIDER_TABLES_SCHEME_POS]->set_null();
+    table->field[SPIDER_TABLES_SCHEME_POS]->reset();
+  }
+  if (alter_table->tmp_tgt_hosts[link_idx])
+  {
+    table->field[SPIDER_TABLES_HOST_POS]->set_notnull();
+    table->field[SPIDER_TABLES_HOST_POS]->store(
+      alter_table->tmp_tgt_hosts[link_idx],
+      (uint) alter_table->tmp_tgt_hosts_lengths[link_idx],
+      system_charset_info);
+  } else {
+    table->field[SPIDER_TABLES_HOST_POS]->set_null();
+    table->field[SPIDER_TABLES_HOST_POS]->reset();
+  }
+  if (alter_table->tmp_tgt_ports[link_idx] >= 0)
+  {
+    table->field[SPIDER_TABLES_PORT_POS]->set_notnull();
+    table->field[SPIDER_TABLES_PORT_POS]->store(
+      alter_table->tmp_tgt_ports[link_idx]);
+  } else {
+    table->field[SPIDER_TABLES_PORT_POS]->set_null();
+    table->field[SPIDER_TABLES_PORT_POS]->reset();
+  }
+  if (alter_table->tmp_tgt_sockets[link_idx])
+  {
+    table->field[SPIDER_TABLES_SOCKET_POS]->set_notnull();
+    table->field[SPIDER_TABLES_SOCKET_POS]->store(
+      alter_table->tmp_tgt_sockets[link_idx],
+      (uint) alter_table->tmp_tgt_sockets_lengths[link_idx],
+      system_charset_info);
+  } else {
+    table->field[SPIDER_TABLES_SOCKET_POS]->set_null();
+    table->field[SPIDER_TABLES_SOCKET_POS]->reset();
+  }
+  if (alter_table->tmp_tgt_usernames[link_idx])
+  {
+    table->field[SPIDER_TABLES_USERNAME_POS]->set_notnull();
+    table->field[SPIDER_TABLES_USERNAME_POS]->store(
+      alter_table->tmp_tgt_usernames[link_idx],
+      (uint) alter_table->tmp_tgt_usernames_lengths[link_idx],
+      system_charset_info);
+  } else {
+    table->field[SPIDER_TABLES_USERNAME_POS]->set_null();
+    table->field[SPIDER_TABLES_USERNAME_POS]->reset();
+  }
+  if (alter_table->tmp_tgt_passwords[link_idx])
+  {
+    table->field[SPIDER_TABLES_PASSWORD_POS]->set_notnull();
+    table->field[SPIDER_TABLES_PASSWORD_POS]->store(
+      alter_table->tmp_tgt_passwords[link_idx],
+      (uint) alter_table->tmp_tgt_passwords_lengths[link_idx],
+      system_charset_info);
+  } else {
+    table->field[SPIDER_TABLES_PASSWORD_POS]->set_null();
+    table->field[SPIDER_TABLES_PASSWORD_POS]->reset();
+  }
+  if (alter_table->tmp_tgt_ssl_cas[link_idx])
+  {
+    table->field[SPIDER_TABLES_SSL_CA_POS]->set_notnull();
+    table->field[SPIDER_TABLES_SSL_CA_POS]->store(
+      alter_table->tmp_tgt_ssl_cas[link_idx],
+      (uint) alter_table->tmp_tgt_ssl_cas_lengths[link_idx],
+      system_charset_info);
+  } else {
+    table->field[SPIDER_TABLES_SSL_CA_POS]->set_null();
+    table->field[SPIDER_TABLES_SSL_CA_POS]->reset();
+  }
+  if (alter_table->tmp_tgt_ssl_capaths[link_idx])
+  {
+    table->field[SPIDER_TABLES_SSL_CAPATH_POS]->set_notnull();
+    table->field[SPIDER_TABLES_SSL_CAPATH_POS]->store(
+      alter_table->tmp_tgt_ssl_capaths[link_idx],
+      (uint) alter_table->tmp_tgt_ssl_capaths_lengths[link_idx],
+      system_charset_info);
+  } else {
+    table->field[SPIDER_TABLES_SSL_CAPATH_POS]->set_null();
+    table->field[SPIDER_TABLES_SSL_CAPATH_POS]->reset();
+  }
+  if (alter_table->tmp_tgt_ssl_certs[link_idx])
+  {
+    table->field[SPIDER_TABLES_SSL_CERT_POS]->set_notnull();
+    table->field[SPIDER_TABLES_SSL_CERT_POS]->store(
+      alter_table->tmp_tgt_ssl_certs[link_idx],
+      (uint) alter_table->tmp_tgt_ssl_certs_lengths[link_idx],
+      system_charset_info);
+  } else {
+    table->field[SPIDER_TABLES_SSL_CERT_POS]->set_null();
+    table->field[SPIDER_TABLES_SSL_CERT_POS]->reset();
+  }
+  if (alter_table->tmp_tgt_ssl_ciphers[link_idx])
+  {
+    table->field[SPIDER_TABLES_SSL_CIPHER_POS]->set_notnull();
+    table->field[SPIDER_TABLES_SSL_CIPHER_POS]->store(
+      alter_table->tmp_tgt_ssl_ciphers[link_idx],
+      (uint) alter_table->tmp_tgt_ssl_ciphers_lengths[link_idx],
+      system_charset_info);
+  } else {
+    table->field[SPIDER_TABLES_SSL_CIPHER_POS]->set_null();
+    table->field[SPIDER_TABLES_SSL_CIPHER_POS]->reset();
+  }
+  if (alter_table->tmp_tgt_ssl_keys[link_idx])
+  {
+    table->field[SPIDER_TABLES_SSL_KEY_POS]->set_notnull();
+    table->field[SPIDER_TABLES_SSL_KEY_POS]->store(
+      alter_table->tmp_tgt_ssl_keys[link_idx],
+      (uint) alter_table->tmp_tgt_ssl_keys_lengths[link_idx],
+      system_charset_info);
+  } else {
+    table->field[SPIDER_TABLES_SSL_KEY_POS]->set_null();
+    table->field[SPIDER_TABLES_SSL_KEY_POS]->reset();
+  }
+  if (alter_table->tmp_tgt_ssl_vscs[link_idx] >= 0)
+  {
+    table->field[SPIDER_TABLES_SSL_VERIFY_SERVER_CERT_POS]->set_notnull();
+    table->field[SPIDER_TABLES_SSL_VERIFY_SERVER_CERT_POS]->store(
+      alter_table->tmp_tgt_ssl_vscs[link_idx]);
+  } else {
+    table->field[SPIDER_TABLES_SSL_VERIFY_SERVER_CERT_POS]->set_null();
+    table->field[SPIDER_TABLES_SSL_VERIFY_SERVER_CERT_POS]->reset();
+  }
+  table->field[SPIDER_TABLES_MONITORING_BINLOG_POS_AT_FAILING_POS]->
+    set_notnull();
+  if (alter_table->tmp_monitoring_binlog_pos_at_failing[link_idx] >= 0)
+  {
+    table->field[SPIDER_TABLES_MONITORING_BINLOG_POS_AT_FAILING_POS]->store(
+      alter_table->tmp_monitoring_binlog_pos_at_failing[link_idx]);
+  } else {
+    table->field[SPIDER_TABLES_MONITORING_BINLOG_POS_AT_FAILING_POS]->store(0);
+  }
+  if (alter_table->tmp_tgt_default_files[link_idx])
+  {
+    table->field[SPIDER_TABLES_DEFAULT_FILE_POS]->set_notnull();
+    table->field[SPIDER_TABLES_DEFAULT_FILE_POS]->store(
+      alter_table->tmp_tgt_default_files[link_idx],
+      (uint) alter_table->tmp_tgt_default_files_lengths[link_idx],
+      system_charset_info);
+  } else {
+    table->field[SPIDER_TABLES_DEFAULT_FILE_POS]->set_null();
+    table->field[SPIDER_TABLES_DEFAULT_FILE_POS]->reset();
+  }
+  if (alter_table->tmp_tgt_default_groups[link_idx])
+  {
+    table->field[SPIDER_TABLES_DEFAULT_GROUP_POS]->set_notnull();
+    table->field[SPIDER_TABLES_DEFAULT_GROUP_POS]->store(
+      alter_table->tmp_tgt_default_groups[link_idx],
+      (uint) alter_table->tmp_tgt_default_groups_lengths[link_idx],
+      system_charset_info);
+  } else {
+    table->field[SPIDER_TABLES_DEFAULT_GROUP_POS]->set_null();
+    table->field[SPIDER_TABLES_DEFAULT_GROUP_POS]->reset();
+  }
+  if (alter_table->tmp_tgt_dsns[link_idx])
+  {
+    table->field[SPIDER_TABLES_DSN_POS]->set_notnull();
+    table->field[SPIDER_TABLES_DSN_POS]->store(
+      alter_table->tmp_tgt_dsns[link_idx],
+      (uint) alter_table->tmp_tgt_dsns_lengths[link_idx],
+      system_charset_info);
+  } else {
+    table->field[SPIDER_TABLES_DSN_POS]->set_null();
+    table->field[SPIDER_TABLES_DSN_POS]->reset();
+  }
+  if (alter_table->tmp_tgt_dbs[link_idx])
+  {
+    table->field[SPIDER_TABLES_TGT_DB_NAME_POS]->set_notnull();
+    table->field[SPIDER_TABLES_TGT_DB_NAME_POS]->store(
+      alter_table->tmp_tgt_dbs[link_idx],
+      (uint) alter_table->tmp_tgt_dbs_lengths[link_idx],
+      system_charset_info);
+  } else {
+    table->field[SPIDER_TABLES_TGT_DB_NAME_POS]->set_null();
+    table->field[SPIDER_TABLES_TGT_DB_NAME_POS]->reset();
+  }
+  if (alter_table->tmp_tgt_table_names[link_idx])
+  {
+    table->field[SPIDER_TABLES_TGT_TABLE_NAME_POS]->set_notnull();
+    table->field[SPIDER_TABLES_TGT_TABLE_NAME_POS]->store(
+      alter_table->tmp_tgt_table_names[link_idx],
+      (uint) alter_table->tmp_tgt_table_names_lengths[link_idx],
+      system_charset_info);
+  } else {
+    table->field[SPIDER_TABLES_TGT_TABLE_NAME_POS]->set_null();
+    table->field[SPIDER_TABLES_TGT_TABLE_NAME_POS]->reset();
+  }
+  table->field[SPIDER_TABLES_BLOCK_STATUS_POS]->store((longlong) 0, FALSE);
+  if (alter_table->tmp_static_link_ids[link_idx])
+  {
+    DBUG_PRINT("info",("spider static_link_id[%d] = %s",
+      link_idx, alter_table->tmp_static_link_ids[link_idx]));
+    table->field[SPIDER_TABLES_STATIC_LINK_ID_POS]->set_notnull();
+    table->field[SPIDER_TABLES_STATIC_LINK_ID_POS]->store(
+      alter_table->tmp_static_link_ids[link_idx],
+      (uint) alter_table->tmp_static_link_ids_lengths[link_idx],
+      system_charset_info);
+  } else {
+    DBUG_PRINT("info",("spider static_link_id[%d] = NULL", link_idx));
+    table->field[SPIDER_TABLES_STATIC_LINK_ID_POS]->set_null();
+    table->field[SPIDER_TABLES_STATIC_LINK_ID_POS]->reset();
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_store_tables_link_status(
+  TABLE *table,
+  long link_status
+) {
+  DBUG_ENTER("spider_store_tables_link_status");
+  DBUG_PRINT("info",("spider link_status = %ld", link_status));
+  if (link_status > SPIDER_LINK_STATUS_NO_CHANGE)
+    table->field[SPIDER_TABLES_LINK_STATUS_POS]->store(link_status, FALSE);
+  DBUG_VOID_RETURN;
+}
+
+void spider_store_binlog_pos_failed_link_idx(
+  TABLE *table,
+  int failed_link_idx
+) {
+  DBUG_ENTER("spider_store_binlog_pos_failed_link_idx");
+  table->field[SPIDER_TABLE_POSITION_FOR_RECOVERY_FAILED_LINK_ID_POS]->
+    set_notnull();
+  table->field[SPIDER_TABLE_POSITION_FOR_RECOVERY_FAILED_LINK_ID_POS]->
+    store(failed_link_idx);
+  DBUG_VOID_RETURN;
+}
+
+void spider_store_binlog_pos_source_link_idx(
+  TABLE *table,
+  int source_link_idx
+) {
+  DBUG_ENTER("spider_store_binlog_pos_source_link_idx");
+  table->field[SPIDER_TABLE_POSITION_FOR_RECOVERY_SOURCE_LINK_ID_POS]->
+    set_notnull();
+  table->field[SPIDER_TABLE_POSITION_FOR_RECOVERY_SOURCE_LINK_ID_POS]->
+    store(source_link_idx);
+  DBUG_VOID_RETURN;
+}
+
+void spider_store_binlog_pos_binlog_file(
+  TABLE *table,
+  const char *file_name,
+  int file_name_length,
+  const char *position,
+  int position_length,
+  CHARSET_INFO *binlog_pos_cs
+) {
+  DBUG_ENTER("spider_store_binlog_pos_binlog_file");
+  if (!file_name)
+  {
+    DBUG_PRINT("info",("spider file_name is NULL"));
+    table->field[SPIDER_TABLE_POSITION_FOR_RECOVERY_FILE_POS]->set_null();
+    table->field[SPIDER_TABLE_POSITION_FOR_RECOVERY_FILE_POS]->reset();
+  } else {
+    DBUG_PRINT("info",("spider file_name = %s", file_name));
+    table->field[SPIDER_TABLE_POSITION_FOR_RECOVERY_FILE_POS]->set_notnull();
+    table->field[SPIDER_TABLE_POSITION_FOR_RECOVERY_FILE_POS]->store(
+      file_name, file_name_length, binlog_pos_cs);
+  }
+  if (!position)
+  {
+    DBUG_PRINT("info",("spider position is NULL"));
+    table->field[SPIDER_TABLE_POSITION_FOR_RECOVERY_POSITION_POS]->set_null();
+    table->field[SPIDER_TABLE_POSITION_FOR_RECOVERY_POSITION_POS]->reset();
+  } else {
+    DBUG_PRINT("info",("spider position = %s", position));
+    table->field[SPIDER_TABLE_POSITION_FOR_RECOVERY_POSITION_POS]->
+      set_notnull();
+    table->field[SPIDER_TABLE_POSITION_FOR_RECOVERY_POSITION_POS]->store(
+      position, position_length, binlog_pos_cs);
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_store_binlog_pos_gtid(
+  TABLE *table,
+  const char *gtid,
+  int gtid_length,
+  CHARSET_INFO *binlog_pos_cs
+) {
+  DBUG_ENTER("spider_store_binlog_pos_gtid");
+  if (!gtid)
+  {
+    DBUG_PRINT("info",("spider gtid is NULL"));
+    table->field[SPIDER_TABLE_POSITION_FOR_RECOVERY_GTID_POS]->set_null();
+    table->field[SPIDER_TABLE_POSITION_FOR_RECOVERY_GTID_POS]->reset();
+  } else {
+    DBUG_PRINT("info",("spider gtid = %s", gtid));
+    table->field[SPIDER_TABLE_POSITION_FOR_RECOVERY_GTID_POS]->set_notnull();
+    table->field[SPIDER_TABLE_POSITION_FOR_RECOVERY_GTID_POS]->store(
+      gtid, gtid_length, binlog_pos_cs);
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_store_table_sts_info(
+  TABLE *table,
+  ha_statistics *stat
+) {
+  MYSQL_TIME mysql_time;
+  DBUG_ENTER("spider_store_table_sts_info");
+  table->field[SPIDER_TABLE_STS_DATA_FILE_LENGTH_POS]->store(
+    (longlong) stat->data_file_length, TRUE);
+  table->field[SPIDER_TABLE_STS_MAX_DATA_FILE_LENGTH_POS]->store(
+    (longlong) stat->max_data_file_length, TRUE);
+  table->field[SPIDER_TABLE_STS_INDEX_FILE_LENGTH_POS]->store(
+    (longlong) stat->index_file_length, TRUE);
+  table->field[SPIDER_TABLE_STS_RECORDS_POS]->store(
+    (longlong) stat->records, TRUE);
+  table->field[SPIDER_TABLE_STS_MEAN_REC_LENGTH_POS]->store(
+    (longlong) stat->mean_rec_length, TRUE);
+  spd_tz_system->gmt_sec_to_TIME(&mysql_time, (my_time_t) stat->check_time);
+  table->field[SPIDER_TABLE_STS_CHECK_TIME_POS]->store_time(&mysql_time);
+  spd_tz_system->gmt_sec_to_TIME(&mysql_time, (my_time_t) stat->create_time);
+  table->field[SPIDER_TABLE_STS_CREATE_TIME_POS]->store_time(&mysql_time);
+  spd_tz_system->gmt_sec_to_TIME(&mysql_time, (my_time_t) stat->update_time);
+  table->field[SPIDER_TABLE_STS_UPDATE_TIME_POS]->store_time(&mysql_time);
+  if (stat->checksum_null)
+  {
+    table->field[SPIDER_TABLE_STS_CHECKSUM_POS]->set_null();
+    table->field[SPIDER_TABLE_STS_CHECKSUM_POS]->reset();
+  } else {
+    table->field[SPIDER_TABLE_STS_CHECKSUM_POS]->set_notnull();
+    table->field[SPIDER_TABLE_STS_CHECKSUM_POS]->store(
+      (longlong) stat->checksum, TRUE);
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_store_table_crd_info(
+  TABLE *table,
+  uint *seq,
+  longlong *cardinality
+) {
+  DBUG_ENTER("spider_store_table_crd_info");
+  table->field[SPIDER_TABLE_CRD_KEY_SEQ_POS]->store((longlong) *seq, TRUE);
+  table->field[SPIDER_TABLE_CRD_CARDINALITY_POS]->store(
+    (longlong) *cardinality, FALSE);
+  DBUG_VOID_RETURN;
+}
+
+int spider_insert_xa(
+  TABLE *table,
+  XID *xid,
+  const char *status
+) {
+  int error_num;
+  char table_key[MAX_KEY_LENGTH];
+  DBUG_ENTER("spider_insert_xa");
+  table->use_all_columns();
+  empty_record(table);
+  spider_store_xa_pk(table, xid);
+
+  if ((error_num = spider_check_sys_table(table, table_key)))
+  {
+    if (error_num != HA_ERR_KEY_NOT_FOUND && error_num != HA_ERR_END_OF_FILE)
+    {
+      table->file->print_error(error_num, MYF(0));
+      DBUG_RETURN(error_num);
+    }
+    table->use_all_columns();
+    spider_store_xa_bqual_length(table, xid);
+    spider_store_xa_status(table, status);
+    if ((error_num = spider_write_sys_table_row(table)))
+    {
+      DBUG_RETURN(error_num);
+    }
+  } else {
+    my_message(ER_SPIDER_XA_EXISTS_NUM, ER_SPIDER_XA_EXISTS_STR, MYF(0));
+    DBUG_RETURN(ER_SPIDER_XA_EXISTS_NUM);
+  }
+
+  DBUG_RETURN(0);
+}
+
+int spider_insert_xa_member(
+  TABLE *table,
+  XID *xid,
+  SPIDER_CONN *conn
+) {
+  int error_num;
+  char table_key[MAX_KEY_LENGTH];
+  DBUG_ENTER("spider_insert_xa_member");
+  table->use_all_columns();
+  empty_record(table);
+  spider_store_xa_member_pk(table, xid, conn);
+
+  if ((error_num = spider_check_sys_table(table, table_key)))
+  {
+    if (error_num != HA_ERR_KEY_NOT_FOUND && error_num != HA_ERR_END_OF_FILE)
+    {
+      table->file->print_error(error_num, MYF(0));
+      DBUG_RETURN(error_num);
+    }
+    table->use_all_columns();
+    spider_store_xa_member_info(table, xid, conn);
+    if ((error_num = spider_write_sys_table_row(table)))
+    {
+      DBUG_RETURN(error_num);
+    }
+  } else {
+    my_message(ER_SPIDER_XA_MEMBER_EXISTS_NUM, ER_SPIDER_XA_MEMBER_EXISTS_STR,
+      MYF(0));
+    DBUG_RETURN(ER_SPIDER_XA_MEMBER_EXISTS_NUM);
+  }
+
+  DBUG_RETURN(0);
+}
+
+int spider_insert_tables(
+  TABLE *table,
+  SPIDER_SHARE *share
+) {
+  int error_num, roop_count;
+  DBUG_ENTER("spider_insert_tables");
+  table->use_all_columns();
+  empty_record(table);
+
+  spider_store_tables_name(table, share->table_name, share->table_name_length);
+  spider_store_tables_priority(table, share->priority);
+  for (roop_count = 0; roop_count < (int) share->all_link_count; roop_count++)
+  {
+    spider_store_tables_link_idx(table, roop_count);
+    spider_store_tables_connect_info(table, &share->alter_table, roop_count);
+    spider_store_tables_link_status(table,
+      share->alter_table.tmp_link_statuses[roop_count] >
+      SPIDER_LINK_STATUS_NO_CHANGE ?
+      share->alter_table.tmp_link_statuses[roop_count] :
+      SPIDER_LINK_STATUS_OK);
+    if ((error_num = spider_write_sys_table_row(table)))
+    {
+      DBUG_RETURN(error_num);
+    }
+  }
+
+  DBUG_RETURN(0);
+}
+
+int spider_insert_sys_table(
+  TABLE *table
+) {
+  int error_num;
+  DBUG_ENTER("spider_insert_sys_table");
+  error_num = spider_write_sys_table_row(table);
+  DBUG_RETURN(error_num);
+}
+
+int spider_insert_or_update_table_sts(
+  TABLE *table,
+  const char *name,
+  uint name_length,
+  ha_statistics *stat
+) {
+  int error_num;
+  char table_key[MAX_KEY_LENGTH];
+  DBUG_ENTER("spider_insert_or_update_table_sts");
+  table->use_all_columns();
+  spider_store_tables_name(table, name, name_length);
+  spider_store_table_sts_info(
+    table,
+    stat
+  );
+
+  if ((error_num = spider_check_sys_table_for_update_all_columns(table, table_key)))
+  {
+    if (error_num != HA_ERR_KEY_NOT_FOUND && error_num != HA_ERR_END_OF_FILE)
+    {
+      table->file->print_error(error_num, MYF(0));
+      DBUG_RETURN(error_num);
+    }
+    if ((error_num = spider_write_sys_table_row(table)))
+    {
+      DBUG_RETURN(error_num);
+    }
+  } else {
+    if ((error_num = spider_update_sys_table_row(table, FALSE)))
+    {
+      table->file->print_error(error_num, MYF(0));
+      DBUG_RETURN(error_num);
+    }
+  }
+
+  DBUG_RETURN(0);
+}
+
+int spider_insert_or_update_table_crd(
+  TABLE *table,
+  const char *name,
+  uint name_length,
+  longlong *cardinality,
+  uint number_of_keys
+) {
+  int error_num;
+  uint roop_count;
+  char table_key[MAX_KEY_LENGTH];
+  DBUG_ENTER("spider_insert_or_update_table_crd");
+  table->use_all_columns();
+  spider_store_tables_name(table, name, name_length);
+
+  for (roop_count = 0; roop_count < number_of_keys; ++roop_count)
+  {
+    spider_store_table_crd_info(table, &roop_count, &cardinality[roop_count]);
+    if ((error_num = spider_check_sys_table_for_update_all_columns(table, table_key)))
+    {
+      if (error_num != HA_ERR_KEY_NOT_FOUND && error_num != HA_ERR_END_OF_FILE)
+      {
+        table->file->print_error(error_num, MYF(0));
+        DBUG_RETURN(error_num);
+      }
+      if ((error_num = spider_write_sys_table_row(table)))
+      {
+        DBUG_RETURN(error_num);
+      }
+    } else {
+      if ((error_num = spider_update_sys_table_row(table, FALSE)))
+      {
+        table->file->print_error(error_num, MYF(0));
+        DBUG_RETURN(error_num);
+      }
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_log_tables_link_failed(
+  TABLE *table,
+  char *name,
+  uint name_length,
+  int link_idx
+) {
+  int error_num;
+  DBUG_ENTER("spider_log_tables_link_failed");
+  table->use_all_columns();
+  spider_store_tables_name(table, name, name_length);
+  spider_store_tables_link_idx(table, link_idx);
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100000
+#else
+  if (table->field[SPIDER_LINK_FAILED_LOG_FAILED_TIME_POS] ==
+    table->timestamp_field)
+    table->timestamp_field->set_time();
+#endif
+  if ((error_num = spider_write_sys_table_row(table)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_log_xa_failed(
+  THD *thd,
+  TABLE *table,
+  XID *xid,
+  SPIDER_CONN *conn,
+  const char *status
+) {
+  int error_num;
+  DBUG_ENTER("spider_log_xa_failed");
+  table->use_all_columns();
+  spider_store_xa_member_pk(table, xid, conn);
+  spider_store_xa_member_info(table, xid, conn);
+  if (thd)
+  {
+    table->field[SPIDER_XA_FAILED_LOG_THREAD_ID_POS]->set_notnull();
+    table->field[SPIDER_XA_FAILED_LOG_THREAD_ID_POS]->store(
+      thd->thread_id, TRUE);
+  } else {
+    table->field[SPIDER_XA_FAILED_LOG_THREAD_ID_POS]->set_null();
+    table->field[SPIDER_XA_FAILED_LOG_THREAD_ID_POS]->reset();
+  }
+  table->field[SPIDER_XA_FAILED_LOG_STATUS_POS]->store(
+    status,
+    (uint) strlen(status),
+    system_charset_info);
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100000
+#else
+  if (table->field[SPIDER_XA_FAILED_LOG_FAILED_TIME_POS] ==
+    table->timestamp_field)
+    table->timestamp_field->set_time();
+#endif
+  if ((error_num = spider_write_sys_table_row(table)))
+  {
+    DBUG_RETURN(error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_update_xa(
+  TABLE *table,
+  XID *xid,
+  const char *status
+) {
+  int error_num;
+  char table_key[MAX_KEY_LENGTH];
+  DBUG_ENTER("spider_update_xa");
+  table->use_all_columns();
+  spider_store_xa_pk(table, xid);
+
+  if ((error_num = spider_check_sys_table(table, table_key)))
+  {
+    if (error_num != HA_ERR_KEY_NOT_FOUND && error_num != HA_ERR_END_OF_FILE)
+    {
+      table->file->print_error(error_num, MYF(0));
+      DBUG_RETURN(error_num);
+    }
+    my_message(ER_SPIDER_XA_NOT_EXISTS_NUM, ER_SPIDER_XA_NOT_EXISTS_STR,
+      MYF(0));
+    DBUG_RETURN(ER_SPIDER_XA_NOT_EXISTS_NUM);
+  } else {
+    store_record(table, record[1]);
+    table->use_all_columns();
+    spider_store_xa_status(table, status);
+    if ((error_num = spider_update_sys_table_row(table)))
+    {
+      DBUG_RETURN(error_num);
+    }
+  }
+
+  DBUG_RETURN(0);
+}
+
+int spider_update_tables_name(
+  TABLE *table,
+  const char *from,
+  const char *to,
+  int *old_link_count
+) {
+  int error_num, roop_count = 0;
+  char table_key[MAX_KEY_LENGTH];
+  DBUG_ENTER("spider_update_tables_name");
+  table->use_all_columns();
+  while (TRUE)
+  {
+    spider_store_tables_name(table, from, strlen(from));
+    spider_store_tables_link_idx(table, roop_count);
+    if ((error_num = spider_check_sys_table(table, table_key)))
+    {
+      if (
+        roop_count &&
+        (error_num == HA_ERR_KEY_NOT_FOUND || error_num == HA_ERR_END_OF_FILE)
+      )
+        break;
+      table->file->print_error(error_num, MYF(0));
+      DBUG_RETURN(error_num);
+    } else {
+      store_record(table, record[1]);
+      table->use_all_columns();
+      spider_store_tables_name(table, to, strlen(to));
+      if ((error_num = spider_update_sys_table_row(table)))
+      {
+        DBUG_RETURN(error_num);
+      }
+    }
+    roop_count++;
+  }
+
+  *old_link_count = roop_count;
+  DBUG_RETURN(0);
+}
+
+int spider_update_tables_priority(
+  TABLE *table,
+  SPIDER_ALTER_TABLE *alter_table,
+  const char *name,
+  int *old_link_count
+) {
+  int error_num, roop_count;
+  char table_key[MAX_KEY_LENGTH];
+  DBUG_ENTER("spider_update_tables_priority");
+  table->use_all_columns();
+  for (roop_count = 0; roop_count < (int) alter_table->all_link_count;
+    roop_count++)
+  {
+    spider_store_tables_name(table, alter_table->table_name,
+      alter_table->table_name_length);
+    spider_store_tables_link_idx(table, roop_count);
+    if ((error_num = spider_check_sys_table(table, table_key)))
+    {
+      if (
+        roop_count &&
+        (error_num == HA_ERR_KEY_NOT_FOUND || error_num == HA_ERR_END_OF_FILE)
+      ) {
+        *old_link_count = roop_count;
+
+        /* insert for adding link */
+        spider_store_tables_name(table, name, strlen(name));
+        spider_store_tables_priority(table, alter_table->tmp_priority);
+        do {
+          spider_store_tables_link_idx(table, roop_count);
+          spider_store_tables_connect_info(table, alter_table, roop_count);
+          spider_store_tables_link_status(table,
+            alter_table->tmp_link_statuses[roop_count] !=
+            SPIDER_LINK_STATUS_NO_CHANGE ?
+            alter_table->tmp_link_statuses[roop_count] :
+            SPIDER_LINK_STATUS_OK);
+          if ((error_num = spider_write_sys_table_row(table)))
+          {
+            DBUG_RETURN(error_num);
+          }
+          roop_count++;
+        } while (roop_count < (int) alter_table->all_link_count);
+        DBUG_RETURN(0);
+      } else {
+        table->file->print_error(error_num, MYF(0));
+        DBUG_RETURN(error_num);
+      }
+    } else {
+      store_record(table, record[1]);
+      table->use_all_columns();
+      spider_store_tables_name(table, name, strlen(name));
+      spider_store_tables_priority(table, alter_table->tmp_priority);
+      spider_store_tables_connect_info(table, alter_table, roop_count);
+      spider_store_tables_link_status(table,
+        alter_table->tmp_link_statuses[roop_count]);
+      if ((error_num = spider_update_sys_table_row(table)))
+      {
+        DBUG_RETURN(error_num);
+      }
+    }
+  }
+  while (TRUE)
+  {
+    /* delete for subtracting link */
+    spider_store_tables_link_idx(table, roop_count);
+    if ((error_num = spider_check_sys_table(table, table_key)))
+    {
+      if (
+        roop_count &&
+        (error_num == HA_ERR_KEY_NOT_FOUND || error_num == HA_ERR_END_OF_FILE)
+      )
+        break;
+      else {
+        table->file->print_error(error_num, MYF(0));
+        DBUG_RETURN(error_num);
+      }
+      if ((error_num = spider_delete_sys_table_row(table)))
+      {
+        DBUG_RETURN(error_num);
+      }
+    }
+    roop_count++;
+  }
+
+  *old_link_count = roop_count;
+  DBUG_RETURN(0);
+}
+
+int spider_update_tables_link_status(
+  TABLE *table,
+  char *name,
+  uint name_length,
+  int link_idx,
+  long link_status
+) {
+  int error_num;
+  char table_key[MAX_KEY_LENGTH];
+  DBUG_ENTER("spider_update_tables_link_status");
+  table->use_all_columns();
+  spider_store_tables_name(table, name, name_length);
+  spider_store_tables_link_idx(table, link_idx);
+  if ((error_num = spider_check_sys_table(table, table_key)))
+  {
+    if (
+      (error_num == HA_ERR_KEY_NOT_FOUND || error_num == HA_ERR_END_OF_FILE)
+    )
+      DBUG_RETURN(0);
+    else {
+      table->file->print_error(error_num, MYF(0));
+      DBUG_RETURN(error_num);
+    }
+  } else {
+    store_record(table, record[1]);
+    table->use_all_columns();
+    spider_store_tables_link_status(table, link_status);
+    if ((error_num = spider_update_sys_table_row(table)))
+    {
+      DBUG_RETURN(error_num);
+    }
+  }
+
+  DBUG_RETURN(0);
+}
+
+int spider_update_sys_table(
+  TABLE *table
+) {
+  int error_num;
+  DBUG_ENTER("spider_update_sys_table");
+  error_num = spider_update_sys_table_row(table);
+  DBUG_RETURN(error_num);
+}
+
+int spider_delete_xa(
+  TABLE *table,
+  XID *xid
+) {
+  int error_num;
+  char table_key[MAX_KEY_LENGTH];
+  DBUG_ENTER("spider_delete_xa");
+  table->use_all_columns();
+  spider_store_xa_pk(table, xid);
+
+  if ((error_num = spider_check_sys_table(table, table_key)))
+  {
+    if (error_num != HA_ERR_KEY_NOT_FOUND && error_num != HA_ERR_END_OF_FILE)
+    {
+      table->file->print_error(error_num, MYF(0));
+      DBUG_RETURN(error_num);
+    }
+    my_message(ER_SPIDER_XA_NOT_EXISTS_NUM, ER_SPIDER_XA_NOT_EXISTS_STR,
+      MYF(0));
+    DBUG_RETURN(ER_SPIDER_XA_NOT_EXISTS_NUM);
+  } else {
+    if ((error_num = spider_delete_sys_table_row(table)))
+    {
+      DBUG_RETURN(error_num);
+    }
+  }
+
+  DBUG_RETURN(0);
+}
+
+int spider_delete_xa_member(
+  TABLE *table,
+  XID *xid
+) {
+  int error_num;
+  char table_key[MAX_KEY_LENGTH];
+  DBUG_ENTER("spider_delete_xa_member");
+  table->use_all_columns();
+  spider_store_xa_pk(table, xid);
+
+  if ((error_num = spider_get_sys_table_by_idx(table, table_key, 0,
+    SPIDER_SYS_XA_PK_COL_CNT)))
+  {
+    if (error_num != HA_ERR_KEY_NOT_FOUND && error_num != HA_ERR_END_OF_FILE)
+    {
+      table->file->print_error(error_num, MYF(0));
+      DBUG_RETURN(error_num);
+    }
+    DBUG_RETURN(0);
+  } else {
+    do {
+      if ((error_num = spider_delete_sys_table_row(table, 0, FALSE)))
+      {
+        spider_sys_index_end(table);
+        table->file->print_error(error_num, MYF(0));
+        DBUG_RETURN(error_num);
+      }
+      error_num = spider_sys_index_next_same(table, table_key);
+    } while (error_num == 0);
+  }
+  if ((error_num = spider_sys_index_end(table)))
+  {
+    table->file->print_error(error_num, MYF(0));
+    DBUG_RETURN(error_num);
+  }
+
+  DBUG_RETURN(0);
+}
+
+int spider_delete_tables(
+  TABLE *table,
+  const char *name,
+  int *old_link_count
+) {
+  int error_num, roop_count = 0;
+  char table_key[MAX_KEY_LENGTH];
+  DBUG_ENTER("spider_delete_tables");
+  table->use_all_columns();
+  spider_store_tables_name(table, name, strlen(name));
+
+  while (TRUE)
+  {
+    spider_store_tables_link_idx(table, roop_count);
+    if ((error_num = spider_check_sys_table(table, table_key)))
+      break;
+    else {
+      if ((error_num = spider_delete_sys_table_row(table)))
+      {
+        DBUG_RETURN(error_num);
+      }
+    }
+    roop_count++;
+  }
+
+  *old_link_count = roop_count;
+  DBUG_RETURN(0);
+}
+
+int spider_delete_table_sts(
+  TABLE *table,
+  const char *name,
+  uint name_length
+) {
+  int error_num;
+  char table_key[MAX_KEY_LENGTH];
+  DBUG_ENTER("spider_delete_table_sts");
+  table->use_all_columns();
+  spider_store_tables_name(table, name, name_length);
+
+  if ((error_num = spider_check_sys_table(table, table_key)))
+  {
+    if (error_num != HA_ERR_KEY_NOT_FOUND && error_num != HA_ERR_END_OF_FILE)
+    {
+      table->file->print_error(error_num, MYF(0));
+      DBUG_RETURN(error_num);
+    }
+    /* no record is ok */
+    DBUG_RETURN(0);
+  } else {
+    if ((error_num = spider_delete_sys_table_row(table)))
+    {
+      DBUG_RETURN(error_num);
+    }
+  }
+
+  DBUG_RETURN(0);
+}
+
+int spider_delete_table_crd(
+  TABLE *table,
+  const char *name,
+  uint name_length
+) {
+  int error_num;
+  char table_key[MAX_KEY_LENGTH];
+  DBUG_ENTER("spider_delete_table_crd");
+  table->use_all_columns();
+  spider_store_tables_name(table, name, name_length);
+
+  if ((error_num = spider_get_sys_table_by_idx(table, table_key, 0,
+    SPIDER_SYS_TABLE_CRD_PK_COL_CNT - 1)))
+  {
+    if (error_num != HA_ERR_KEY_NOT_FOUND && error_num != HA_ERR_END_OF_FILE)
+    {
+      table->file->print_error(error_num, MYF(0));
+      DBUG_RETURN(error_num);
+    }
+    /* no record is ok */
+    DBUG_RETURN(0);
+  } else {
+    do {
+      if ((error_num = spider_delete_sys_table_row(table)))
+      {
+        spider_sys_index_end(table);
+        DBUG_RETURN(error_num);
+      }
+      error_num = spider_sys_index_next_same(table, table_key);
+    } while (error_num == 0);
+  }
+  if ((error_num = spider_sys_index_end(table)))
+  {
+    table->file->print_error(error_num, MYF(0));
+    DBUG_RETURN(error_num);
+  }
+
+  DBUG_RETURN(0);
+}
+
+int spider_get_sys_xid(
+  TABLE *table,
+  XID *xid,
+  MEM_ROOT *mem_root
+) {
+  char *ptr;
+  DBUG_ENTER("spider_get_sys_xid");
+  ptr = get_field(mem_root, table->field[SPIDER_XA_FORMAT_ID_POS]);
+  if (ptr)
+  {
+    xid->formatID = atoi(ptr);
+  } else
+    xid->formatID = 0;
+  ptr = get_field(mem_root, table->field[SPIDER_XA_GTRID_LENGTH_POS]);
+  if (ptr)
+  {
+    xid->gtrid_length = atoi(ptr);
+  } else
+    xid->gtrid_length = 0;
+  ptr = get_field(mem_root, table->field[SPIDER_XA_BQUAL_LENGTH_POS]);
+  if (ptr)
+  {
+    xid->bqual_length = atoi(ptr);
+  } else
+    xid->bqual_length = 0;
+  ptr = get_field(mem_root, table->field[SPIDER_XA_DATA_POS]);
+  if (ptr)
+  {
+    strmov(xid->data, ptr);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_get_sys_server_info(
+  TABLE *table,
+  SPIDER_SHARE *share,
+  int link_idx,
+  MEM_ROOT *mem_root
+) {
+  char *ptr;
+  DBUG_ENTER("spider_get_sys_server_info");
+  if ((ptr = get_field(mem_root, table->field[SPIDER_XA_MEMBER_SCHEME_POS])))
+  {
+    share->tgt_wrappers_lengths[link_idx] = strlen(ptr);
+    share->tgt_wrappers[link_idx] = spider_create_string(ptr,
+      share->tgt_wrappers_lengths[link_idx]);
+  } else {
+    share->tgt_wrappers_lengths[link_idx] = 0;
+    share->tgt_wrappers[link_idx] = NULL;
+  }
+  if ((ptr = get_field(mem_root, table->field[SPIDER_XA_MEMBER_HOST_POS])))
+  {
+    share->tgt_hosts_lengths[link_idx] = strlen(ptr);
+    share->tgt_hosts[link_idx] = spider_create_string(ptr,
+      share->tgt_hosts_lengths[link_idx]);
+  } else {
+    share->tgt_hosts_lengths[link_idx] = 0;
+    share->tgt_hosts[link_idx] = NULL;
+  }
+  if ((ptr = get_field(mem_root, table->field[SPIDER_XA_MEMBER_PORT_POS])))
+  {
+    share->tgt_ports[link_idx] = atol(ptr);
+  } else
+    share->tgt_ports[link_idx] = MYSQL_PORT;
+  if ((ptr = get_field(mem_root, table->field[SPIDER_XA_MEMBER_SOCKET_POS])))
+  {
+    share->tgt_sockets_lengths[link_idx] = strlen(ptr);
+    share->tgt_sockets[link_idx] = spider_create_string(ptr,
+      share->tgt_sockets_lengths[link_idx]);
+  } else {
+    share->tgt_sockets_lengths[link_idx] = 0;
+    share->tgt_sockets[link_idx] = NULL;
+  }
+  if ((ptr = get_field(mem_root, table->field[SPIDER_XA_MEMBER_USERNAME_POS])))
+  {
+    share->tgt_usernames_lengths[link_idx] = strlen(ptr);
+    share->tgt_usernames[link_idx] =
+      spider_create_string(ptr, share->tgt_usernames_lengths[link_idx]);
+  } else {
+    share->tgt_usernames_lengths[link_idx] = 0;
+    share->tgt_usernames[link_idx] = NULL;
+  }
+  if ((ptr = get_field(mem_root, table->field[SPIDER_XA_MEMBER_PASSWORD_POS])))
+  {
+    share->tgt_passwords_lengths[link_idx] = strlen(ptr);
+    share->tgt_passwords[link_idx] =
+      spider_create_string(ptr, share->tgt_passwords_lengths[link_idx]);
+  } else {
+    share->tgt_passwords_lengths[link_idx] = 0;
+    share->tgt_passwords[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_XA_MEMBER_SSL_CA_POS]->is_null() &&
+    (ptr = get_field(mem_root, table->field[SPIDER_XA_MEMBER_SSL_CA_POS]))
+  ) {
+    share->tgt_ssl_cas_lengths[link_idx] = strlen(ptr);
+    share->tgt_ssl_cas[link_idx] =
+      spider_create_string(ptr, share->tgt_ssl_cas_lengths[link_idx]);
+  } else {
+    share->tgt_ssl_cas_lengths[link_idx] = 0;
+    share->tgt_ssl_cas[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_XA_MEMBER_SSL_CAPATH_POS]->is_null() &&
+    (ptr = get_field(mem_root, table->field[SPIDER_XA_MEMBER_SSL_CAPATH_POS]))
+  ) {
+    share->tgt_ssl_capaths_lengths[link_idx] = strlen(ptr);
+    share->tgt_ssl_capaths[link_idx] =
+      spider_create_string(ptr, share->tgt_ssl_capaths_lengths[link_idx]);
+  } else {
+    share->tgt_ssl_capaths_lengths[link_idx] = 0;
+    share->tgt_ssl_capaths[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_XA_MEMBER_SSL_CERT_POS]->is_null() &&
+    (ptr = get_field(mem_root, table->field[SPIDER_XA_MEMBER_SSL_CERT_POS]))
+  ) {
+    share->tgt_ssl_certs_lengths[link_idx] = strlen(ptr);
+    share->tgt_ssl_certs[link_idx] =
+      spider_create_string(ptr, share->tgt_ssl_certs_lengths[link_idx]);
+  } else {
+    share->tgt_ssl_certs_lengths[link_idx] = 0;
+    share->tgt_ssl_certs[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_XA_MEMBER_SSL_CIPHER_POS]->is_null() &&
+    (ptr = get_field(mem_root, table->field[SPIDER_XA_MEMBER_SSL_CIPHER_POS]))
+  ) {
+    share->tgt_ssl_ciphers_lengths[link_idx] = strlen(ptr);
+    share->tgt_ssl_ciphers[link_idx] =
+      spider_create_string(ptr, share->tgt_ssl_ciphers_lengths[link_idx]);
+  } else {
+    share->tgt_ssl_ciphers_lengths[link_idx] = 0;
+    share->tgt_ssl_ciphers[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_XA_MEMBER_SSL_KEY_POS]->is_null() &&
+    (ptr = get_field(mem_root, table->field[SPIDER_XA_MEMBER_SSL_KEY_POS]))
+  ) {
+    share->tgt_ssl_keys_lengths[link_idx] = strlen(ptr);
+    share->tgt_ssl_keys[link_idx] =
+      spider_create_string(ptr, share->tgt_ssl_keys_lengths[link_idx]);
+  } else {
+    share->tgt_ssl_keys_lengths[link_idx] = 0;
+    share->tgt_ssl_keys[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_XA_MEMBER_SSL_VERIFY_SERVER_CERT_POS]->is_null() &&
+    (ptr = get_field(mem_root, table->
+      field[SPIDER_XA_MEMBER_SSL_VERIFY_SERVER_CERT_POS]))
+  ) {
+    share->tgt_ssl_vscs[link_idx] = atol(ptr);
+  } else
+    share->tgt_ssl_vscs[link_idx] = 0;
+  if (
+    !table->field[SPIDER_XA_MEMBER_DEFAULT_FILE_POS]->is_null() &&
+    (ptr = get_field(mem_root, table->
+      field[SPIDER_XA_MEMBER_DEFAULT_FILE_POS]))
+  ) {
+    share->tgt_default_files_lengths[link_idx] = strlen(ptr);
+    share->tgt_default_files[link_idx] =
+      spider_create_string(ptr, share->tgt_default_files_lengths[link_idx]);
+  } else {
+    share->tgt_default_files_lengths[link_idx] = 0;
+    share->tgt_default_files[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_XA_MEMBER_DEFAULT_GROUP_POS]->is_null() &&
+    (ptr = get_field(mem_root, table->
+      field[SPIDER_XA_MEMBER_DEFAULT_GROUP_POS]))
+  ) {
+    share->tgt_default_groups_lengths[link_idx] = strlen(ptr);
+    share->tgt_default_groups[link_idx] =
+      spider_create_string(ptr, share->tgt_default_groups_lengths[link_idx]);
+  } else {
+    share->tgt_default_groups_lengths[link_idx] = 0;
+    share->tgt_default_groups[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_XA_MEMBER_DSN_POS]->is_null() &&
+    (ptr = get_field(mem_root, table->field[SPIDER_XA_MEMBER_DSN_POS]))
+  ) {
+    share->tgt_dsns_lengths[link_idx] = strlen(ptr);
+    share->tgt_dsns[link_idx] =
+      spider_create_string(ptr, share->tgt_dsns_lengths[link_idx]);
+  } else {
+    share->tgt_dsns_lengths[link_idx] = 0;
+    share->tgt_dsns[link_idx] = NULL;
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_check_sys_xa_status(
+  TABLE *table,
+  const char *status1,
+  const char *status2,
+  const char *status3,
+  const int check_error_num,
+  MEM_ROOT *mem_root
+) {
+  char *ptr;
+  int error_num;
+  DBUG_ENTER("spider_check_sys_xa_status");
+  ptr = get_field(mem_root, table->field[SPIDER_XA_STATUS_POS]);
+  if (ptr)
+  {
+    if (
+      strcmp(ptr, status1) &&
+      (status2 == NULL || strcmp(ptr, status2)) &&
+      (status3 == NULL || strcmp(ptr, status3))
+    )
+      error_num = check_error_num;
+    else
+      error_num = 0;
+  } else
+    error_num = check_error_num;
+  DBUG_RETURN(error_num);
+}
+
+int spider_get_sys_tables(
+  TABLE *table,
+  char **db_name,
+  char **table_name,
+  MEM_ROOT *mem_root
+) {
+  char *ptr;
+  DBUG_ENTER("spider_get_sys_tables");
+  if ((ptr = get_field(mem_root, table->field[SPIDER_TABLES_DB_NAME_POS])))
+  {
+    *db_name = spider_create_string(ptr, strlen(ptr));
+  } else {
+    *db_name = NULL;
+  }
+  if ((ptr = get_field(mem_root, table->field[SPIDER_TABLES_TABLE_NAME_POS])))
+  {
+    *table_name = spider_create_string(ptr, strlen(ptr));
+  } else {
+    *table_name = NULL;
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_get_sys_tables_connect_info(
+  TABLE *table,
+  SPIDER_SHARE *share,
+  int link_idx,
+  MEM_ROOT *mem_root
+) {
+  char *ptr;
+  int error_num = 0;
+  DBUG_ENTER("spider_get_sys_tables_connect_info");
+  DBUG_PRINT("info",("spider link_idx:%d", link_idx));
+  if ((ptr = get_field(mem_root, table->field[SPIDER_TABLES_PRIORITY_POS])))
+  {
+    share->priority = my_strtoll10(ptr, (char**) NULL, &error_num);
+  } else
+    share->priority = 1000000;
+  DBUG_PRINT("info",("spider priority:%lld", share->priority));
+  if (
+    !table->field[SPIDER_TABLES_SERVER_POS]->is_null() &&
+    (ptr = get_field(mem_root, table->field[SPIDER_TABLES_SERVER_POS]))
+  ) {
+    share->server_names_lengths[link_idx] = strlen(ptr);
+    share->server_names[link_idx] =
+      spider_create_string(ptr, share->server_names_lengths[link_idx]);
+    DBUG_PRINT("info",("spider server_name:%s",
+      share->server_names[link_idx]));
+  } else {
+    share->server_names_lengths[link_idx] = 0;
+    share->server_names[link_idx] = NULL;
+    DBUG_PRINT("info",("spider server_name is NULL"));
+  }
+  if (
+    !table->field[SPIDER_TABLES_SCHEME_POS]->is_null() &&
+    (ptr = get_field(mem_root, table->field[SPIDER_TABLES_SCHEME_POS]))
+  ) {
+    share->tgt_wrappers_lengths[link_idx] = strlen(ptr);
+    share->tgt_wrappers[link_idx] =
+      spider_create_string(ptr, share->tgt_wrappers_lengths[link_idx]);
+    DBUG_PRINT("info",("spider tgt_wrapper:%s",
+      share->tgt_wrappers[link_idx]));
+  } else {
+    share->tgt_wrappers_lengths[link_idx] = 0;
+    share->tgt_wrappers[link_idx] = NULL;
+    DBUG_PRINT("info",("spider tgt_wrapper is NULL"));
+  }
+  if (
+    !table->field[SPIDER_TABLES_HOST_POS]->is_null() &&
+    (ptr = get_field(mem_root, table->field[SPIDER_TABLES_HOST_POS]))
+  ) {
+    share->tgt_hosts_lengths[link_idx] = strlen(ptr);
+    share->tgt_hosts[link_idx] =
+      spider_create_string(ptr, share->tgt_hosts_lengths[link_idx]);
+    DBUG_PRINT("info",("spider tgt_host:%s",
+      share->tgt_hosts[link_idx]));
+  } else {
+    share->tgt_hosts_lengths[link_idx] = 0;
+    share->tgt_hosts[link_idx] = NULL;
+    DBUG_PRINT("info",("spider tgt_host is NULL"));
+  }
+  if (
+    !table->field[SPIDER_TABLES_PORT_POS]->is_null() &&
+    (ptr = get_field(mem_root, table->field[SPIDER_TABLES_PORT_POS]))
+  ) {
+    share->tgt_ports[link_idx] = atol(ptr);
+  } else {
+    share->tgt_ports[link_idx] = -1;
+  }
+  DBUG_PRINT("info",("spider port:%ld", share->tgt_ports[link_idx]));
+  if (
+    !table->field[SPIDER_TABLES_SOCKET_POS]->is_null() &&
+    (ptr = get_field(mem_root, table->field[SPIDER_TABLES_SOCKET_POS]))
+  ) {
+    share->tgt_sockets_lengths[link_idx] = strlen(ptr);
+    share->tgt_sockets[link_idx] =
+      spider_create_string(ptr, share->tgt_sockets_lengths[link_idx]);
+  } else {
+    share->tgt_sockets_lengths[link_idx] = 0;
+    share->tgt_sockets[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_TABLES_USERNAME_POS]->is_null() &&
+    (ptr = get_field(mem_root, table->field[SPIDER_TABLES_USERNAME_POS]))
+  ) {
+    share->tgt_usernames_lengths[link_idx] = strlen(ptr);
+    share->tgt_usernames[link_idx] =
+      spider_create_string(ptr, share->tgt_usernames_lengths[link_idx]);
+  } else {
+    share->tgt_usernames_lengths[link_idx] = 0;
+    share->tgt_usernames[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_TABLES_PASSWORD_POS]->is_null() &&
+    (ptr = get_field(mem_root, table->field[SPIDER_TABLES_PASSWORD_POS]))
+  ) {
+    share->tgt_passwords_lengths[link_idx] = strlen(ptr);
+    share->tgt_passwords[link_idx] =
+      spider_create_string(ptr, share->tgt_passwords_lengths[link_idx]);
+  } else {
+    share->tgt_passwords_lengths[link_idx] = 0;
+    share->tgt_passwords[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_TABLES_SSL_CA_POS]->is_null() &&
+    (ptr = get_field(mem_root, table->field[SPIDER_TABLES_SSL_CA_POS]))
+  ) {
+    share->tgt_ssl_cas_lengths[link_idx] = strlen(ptr);
+    share->tgt_ssl_cas[link_idx] =
+      spider_create_string(ptr, share->tgt_ssl_cas_lengths[link_idx]);
+  } else {
+    share->tgt_ssl_cas_lengths[link_idx] = 0;
+    share->tgt_ssl_cas[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_TABLES_SSL_CAPATH_POS]->is_null() &&
+    (ptr = get_field(mem_root, table->field[SPIDER_TABLES_SSL_CAPATH_POS]))
+  ) {
+    share->tgt_ssl_capaths_lengths[link_idx] = strlen(ptr);
+    share->tgt_ssl_capaths[link_idx] =
+      spider_create_string(ptr, share->tgt_ssl_capaths_lengths[link_idx]);
+  } else {
+    share->tgt_ssl_capaths_lengths[link_idx] = 0;
+    share->tgt_ssl_capaths[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_TABLES_SSL_CERT_POS]->is_null() &&
+    (ptr = get_field(mem_root, table->field[SPIDER_TABLES_SSL_CERT_POS]))
+  ) {
+    share->tgt_ssl_certs_lengths[link_idx] = strlen(ptr);
+    share->tgt_ssl_certs[link_idx] =
+      spider_create_string(ptr, share->tgt_ssl_certs_lengths[link_idx]);
+  } else {
+    share->tgt_ssl_certs_lengths[link_idx] = 0;
+    share->tgt_ssl_certs[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_TABLES_SSL_CIPHER_POS]->is_null() &&
+    (ptr = get_field(mem_root, table->field[SPIDER_TABLES_SSL_CIPHER_POS]))
+  ) {
+    share->tgt_ssl_ciphers_lengths[link_idx] = strlen(ptr);
+    share->tgt_ssl_ciphers[link_idx] =
+      spider_create_string(ptr, share->tgt_ssl_ciphers_lengths[link_idx]);
+  } else {
+    share->tgt_ssl_ciphers_lengths[link_idx] = 0;
+    share->tgt_ssl_ciphers[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_TABLES_SSL_KEY_POS]->is_null() &&
+    (ptr = get_field(mem_root, table->field[SPIDER_TABLES_SSL_KEY_POS]))
+  ) {
+    share->tgt_ssl_keys_lengths[link_idx] = strlen(ptr);
+    share->tgt_ssl_keys[link_idx] =
+      spider_create_string(ptr, share->tgt_ssl_keys_lengths[link_idx]);
+  } else {
+    share->tgt_ssl_keys_lengths[link_idx] = 0;
+    share->tgt_ssl_keys[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_TABLES_SSL_VERIFY_SERVER_CERT_POS]->is_null() &&
+    (ptr = get_field(mem_root,
+      table->field[SPIDER_TABLES_SSL_VERIFY_SERVER_CERT_POS]))
+  ) {
+    share->tgt_ssl_vscs[link_idx] = atol(ptr);
+  } else
+    share->tgt_ssl_vscs[link_idx] = -1;
+  if (
+    !table->field[SPIDER_TABLES_MONITORING_BINLOG_POS_AT_FAILING_POS]->
+      is_null() &&
+    (ptr = get_field(mem_root, table->
+      field[SPIDER_TABLES_MONITORING_BINLOG_POS_AT_FAILING_POS]))
+  ) {
+    share->monitoring_binlog_pos_at_failing[link_idx] = atol(ptr);
+  } else
+    share->monitoring_binlog_pos_at_failing[link_idx] = 0;
+  if (
+    !table->field[SPIDER_TABLES_DEFAULT_FILE_POS]->is_null() &&
+    (ptr = get_field(mem_root, table->field[SPIDER_TABLES_DEFAULT_FILE_POS]))
+  ) {
+    share->tgt_default_files_lengths[link_idx] = strlen(ptr);
+    share->tgt_default_files[link_idx] =
+      spider_create_string(ptr, share->tgt_default_files_lengths[link_idx]);
+  } else {
+    share->tgt_default_files_lengths[link_idx] = 0;
+    share->tgt_default_files[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_TABLES_DEFAULT_GROUP_POS]->is_null() &&
+    (ptr = get_field(mem_root, table->field[SPIDER_TABLES_DEFAULT_GROUP_POS]))
+  ) {
+    share->tgt_default_groups_lengths[link_idx] = strlen(ptr);
+    share->tgt_default_groups[link_idx] =
+      spider_create_string(ptr, share->tgt_default_groups_lengths[link_idx]);
+  } else {
+    share->tgt_default_groups_lengths[link_idx] = 0;
+    share->tgt_default_groups[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_TABLES_DSN_POS]->is_null() &&
+    (ptr = get_field(mem_root, table->field[SPIDER_TABLES_DSN_POS]))
+  ) {
+    share->tgt_dsns_lengths[link_idx] = strlen(ptr);
+    share->tgt_dsns[link_idx] =
+      spider_create_string(ptr, share->tgt_dsns_lengths[link_idx]);
+  } else {
+    share->tgt_dsns_lengths[link_idx] = 0;
+    share->tgt_dsns[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_TABLES_TGT_DB_NAME_POS]->is_null() &&
+    (ptr = get_field(mem_root, table->field[SPIDER_TABLES_TGT_DB_NAME_POS]))
+  ) {
+    share->tgt_dbs_lengths[link_idx] = strlen(ptr);
+    share->tgt_dbs[link_idx] =
+      spider_create_string(ptr, share->tgt_dbs_lengths[link_idx]);
+  } else {
+    share->tgt_dbs_lengths[link_idx] = 0;
+    share->tgt_dbs[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_TABLES_TGT_TABLE_NAME_POS]->is_null() &&
+    (ptr = get_field(mem_root, table->field[SPIDER_TABLES_TGT_TABLE_NAME_POS]))
+  ) {
+    share->tgt_table_names_lengths[link_idx] = strlen(ptr);
+    share->tgt_table_names[link_idx] =
+      spider_create_string(ptr, share->tgt_table_names_lengths[link_idx]);
+  } else {
+    share->tgt_table_names_lengths[link_idx] = 0;
+    share->tgt_table_names[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_TABLES_STATIC_LINK_ID_POS]->is_null() &&
+    (ptr = get_field(mem_root, table->field[SPIDER_TABLES_STATIC_LINK_ID_POS]))
+  ) {
+    share->static_link_ids_lengths[link_idx] = strlen(ptr);
+    share->static_link_ids[link_idx] =
+      spider_create_string(ptr, share->static_link_ids_lengths[link_idx]);
+  } else {
+    share->static_link_ids_lengths[link_idx] = 0;
+    share->static_link_ids[link_idx] = NULL;
+  }
+  DBUG_RETURN(error_num);
+}
+
+int spider_get_sys_tables_monitoring_binlog_pos_at_failing(
+  TABLE *table,
+  long *monitoring_binlog_pos_at_failing,
+  MEM_ROOT *mem_root
+) {
+  char *ptr;
+  int error_num = 0;
+  DBUG_ENTER("spider_get_sys_tables_monitoring_binlog_pos_at_failing");
+  if ((ptr = get_field(mem_root, table->
+    field[SPIDER_TABLES_MONITORING_BINLOG_POS_AT_FAILING_POS])))
+    *monitoring_binlog_pos_at_failing = (long) my_strtoll10(ptr, (char**) NULL,
+      &error_num);
+  else
+    *monitoring_binlog_pos_at_failing = 1;
+  DBUG_PRINT("info",("spider monitoring_binlog_pos_at_failing=%ld",
+    *monitoring_binlog_pos_at_failing));
+  DBUG_RETURN(error_num);
+}
+
+int spider_get_sys_tables_link_status(
+  TABLE *table,
+  SPIDER_SHARE *share,
+  int link_idx,
+  MEM_ROOT *mem_root
+) {
+  char *ptr;
+  int error_num = 0;
+  DBUG_ENTER("spider_get_sys_tables_link_status");
+  if ((ptr = get_field(mem_root, table->field[SPIDER_TABLES_LINK_STATUS_POS])))
+  {
+    share->link_statuses[link_idx] =
+      (long) my_strtoll10(ptr, (char**) NULL, &error_num);
+  } else
+    share->link_statuses[link_idx] = 1;
+  DBUG_PRINT("info",("spider link_statuses[%d]=%ld",
+    link_idx, share->link_statuses[link_idx]));
+  DBUG_RETURN(error_num);
+}
+
+int spider_get_sys_tables_link_status(
+  TABLE *table,
+  long *link_status,
+  MEM_ROOT *mem_root
+) {
+  char *ptr;
+  int error_num = 0;
+  DBUG_ENTER("spider_get_sys_tables_link_status");
+  if ((ptr = get_field(mem_root, table->field[SPIDER_TABLES_LINK_STATUS_POS])))
+    *link_status = (long) my_strtoll10(ptr, (char**) NULL, &error_num);
+  else
+    *link_status = 1;
+  DBUG_PRINT("info",("spider link_statuses=%ld", *link_status));
+  DBUG_RETURN(error_num);
+}
+
+int spider_get_sys_tables_link_idx(
+  TABLE *table,
+  int *link_idx,
+  MEM_ROOT *mem_root
+) {
+  char *ptr;
+  int error_num = 0;
+  DBUG_ENTER("spider_get_sys_tables_link_idx");
+  if ((ptr = get_field(mem_root, table->field[SPIDER_TABLES_LINK_ID_POS])))
+    *link_idx = (int) my_strtoll10(ptr, (char**) NULL, &error_num);
+  else
+    *link_idx = 1;
+  DBUG_PRINT("info",("spider link_idx=%d", *link_idx));
+  DBUG_RETURN(error_num);
+}
+
+int spider_get_sys_tables_static_link_id(
+  TABLE *table,
+  char **static_link_id,
+  uint *static_link_id_length,
+  MEM_ROOT *mem_root
+) {
+  int error_num = 0;
+  DBUG_ENTER("spider_get_sys_tables_static_link_id");
+  *static_link_id = NULL;
+  if (
+    !table->field[SPIDER_TABLES_STATIC_LINK_ID_POS]->is_null() &&
+    (*static_link_id = get_field(mem_root, table->
+      field[SPIDER_TABLES_STATIC_LINK_ID_POS]))
+  ) {
+    *static_link_id_length = strlen(*static_link_id);
+  } else {
+    *static_link_id_length = 0;
+  }
+  DBUG_PRINT("info",("spider static_link_id=%s", *static_link_id ? *static_link_id : "NULL"));
+  DBUG_RETURN(error_num);
+}
+
+void spider_get_sys_table_sts_info(
+  TABLE *table,
+  ha_statistics *stat
+) {
+  MYSQL_TIME mysql_time;
+#ifdef MARIADB_BASE_VERSION
+  uint not_used_uint;
+#else
+  my_bool not_used_my_bool;
+#endif
+  long not_used_long;
+  DBUG_ENTER("spider_get_sys_table_sts_info");
+  stat->data_file_length = (ulonglong) table->
+    field[SPIDER_TABLE_STS_DATA_FILE_LENGTH_POS]->val_int();
+  stat->max_data_file_length = (ulonglong) table->
+    field[SPIDER_TABLE_STS_MAX_DATA_FILE_LENGTH_POS]->val_int();
+  stat->index_file_length = (ulonglong) table->
+    field[SPIDER_TABLE_STS_INDEX_FILE_LENGTH_POS]->val_int();
+  stat->records = (ha_rows) table->
+    field[SPIDER_TABLE_STS_RECORDS_POS]->val_int();
+  stat->mean_rec_length = (ulong) table->
+    field[SPIDER_TABLE_STS_MEAN_REC_LENGTH_POS]->val_int();
+  table->field[SPIDER_TABLE_STS_CHECK_TIME_POS]->get_date(&mysql_time,
+    SPIDER_date_mode_t(0));
+#ifdef MARIADB_BASE_VERSION
+  stat->check_time = (time_t) my_system_gmt_sec(&mysql_time,
+    &not_used_long, &not_used_uint);
+#else
+  stat->check_time = (time_t) my_system_gmt_sec(&mysql_time,
+    &not_used_long, &not_used_my_bool);
+#endif
+  table->field[SPIDER_TABLE_STS_CREATE_TIME_POS]->get_date(&mysql_time,
+    SPIDER_date_mode_t(0));
+#ifdef MARIADB_BASE_VERSION
+  stat->create_time = (time_t) my_system_gmt_sec(&mysql_time,
+    &not_used_long, &not_used_uint);
+#else
+  stat->create_time = (time_t) my_system_gmt_sec(&mysql_time,
+    &not_used_long, &not_used_my_bool);
+#endif
+  table->field[SPIDER_TABLE_STS_UPDATE_TIME_POS]->get_date(&mysql_time,
+    SPIDER_date_mode_t(0));
+#ifdef MARIADB_BASE_VERSION
+  stat->update_time = (time_t) my_system_gmt_sec(&mysql_time,
+    &not_used_long, &not_used_uint);
+#else
+  stat->update_time = (time_t) my_system_gmt_sec(&mysql_time,
+    &not_used_long, &not_used_my_bool);
+#endif
+  if (table->field[SPIDER_TABLE_STS_CHECKSUM_POS]->is_null())
+  {
+    stat->checksum_null = TRUE;
+    stat->checksum = 0;
+  } else {
+    stat->checksum_null = FALSE;
+    stat->checksum = (ha_checksum) table->
+      field[SPIDER_TABLE_STS_CHECKSUM_POS]->val_int();
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_get_sys_table_crd_info(
+  TABLE *table,
+  longlong *cardinality,
+  uint number_of_keys
+) {
+  uint seq;
+  DBUG_ENTER("spider_get_sys_table_crd_info");
+  seq = (uint) table->field[SPIDER_TABLE_CRD_KEY_SEQ_POS]->val_int();
+  if (seq < number_of_keys)
+  {
+    cardinality[seq] = (longlong) table->
+      field[SPIDER_TABLE_CRD_CARDINALITY_POS]->val_int();
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_sys_update_tables_link_status(
+  THD *thd,
+  char *name,
+  uint name_length,
+  int link_idx,
+  long link_status,
+  bool need_lock
+) {
+  int error_num;
+  TABLE *table_tables = NULL;
+  SPIDER_Open_tables_backup open_tables_backup;
+  DBUG_ENTER("spider_sys_update_tables_link_status");
+  if (
+    !(table_tables = spider_open_sys_table(
+      thd, SPIDER_SYS_TABLES_TABLE_NAME_STR,
+      SPIDER_SYS_TABLES_TABLE_NAME_LEN, TRUE, &open_tables_backup, need_lock,
+      &error_num))
+  ) {
+    goto error;
+  }
+  if ((error_num = spider_update_tables_link_status(table_tables,
+    name, name_length, link_idx, link_status)))
+    goto error;
+  spider_close_sys_table(thd, table_tables,
+    &open_tables_backup, need_lock);
+  table_tables = NULL;
+  DBUG_RETURN(0);
+
+error:
+  if (table_tables)
+    spider_close_sys_table(thd, table_tables,
+      &open_tables_backup, need_lock);
+  DBUG_RETURN(error_num);
+}
+
+int spider_sys_log_tables_link_failed(
+  THD *thd,
+  char *name,
+  uint name_length,
+  int link_idx,
+  bool need_lock
+) {
+  int error_num;
+  TABLE *table_tables = NULL;
+  SPIDER_Open_tables_backup open_tables_backup;
+  DBUG_ENTER("spider_sys_log_tables_link_failed");
+  if (
+    !(table_tables = spider_open_sys_table(
+      thd, SPIDER_SYS_LINK_FAILED_TABLE_NAME_STR,
+      SPIDER_SYS_LINK_FAILED_TABLE_NAME_LEN, TRUE, &open_tables_backup,
+      need_lock, &error_num))
+  ) {
+    goto error;
+  }
+  empty_record(table_tables);
+  if ((error_num = spider_log_tables_link_failed(table_tables,
+    name, name_length, link_idx)))
+    goto error;
+  spider_close_sys_table(thd, table_tables,
+    &open_tables_backup, need_lock);
+  table_tables = NULL;
+  DBUG_RETURN(0);
+
+error:
+  if (table_tables)
+    spider_close_sys_table(thd, table_tables,
+      &open_tables_backup, need_lock);
+  DBUG_RETURN(error_num);
+}
+
+int spider_sys_log_xa_failed(
+  THD *thd,
+  XID *xid,
+  SPIDER_CONN *conn,
+  const char *status,
+  bool need_lock
+) {
+  int error_num;
+  TABLE *table_tables = NULL;
+  SPIDER_Open_tables_backup open_tables_backup;
+  DBUG_ENTER("spider_sys_log_xa_failed");
+  if (
+    !(table_tables = spider_open_sys_table(
+      thd, SPIDER_SYS_XA_FAILED_TABLE_NAME_STR,
+      SPIDER_SYS_XA_FAILED_TABLE_NAME_LEN, TRUE, &open_tables_backup,
+      need_lock, &error_num))
+  ) {
+    goto error;
+  }
+  empty_record(table_tables);
+  if ((error_num = spider_log_xa_failed(thd, table_tables, xid, conn, status)))
+    goto error;
+  spider_close_sys_table(thd, table_tables, &open_tables_backup, need_lock);
+  table_tables = NULL;
+  DBUG_RETURN(0);
+
+error:
+  if (table_tables)
+    spider_close_sys_table(thd, table_tables, &open_tables_backup, need_lock);
+  DBUG_RETURN(error_num);
+}
+
+int spider_get_sys_link_mon_key(
+  TABLE *table,
+  SPIDER_MON_KEY *mon_key,
+  MEM_ROOT *mem_root,
+  int *same
+) {
+  char *db_name, *table_name, *link_id;
+  uint db_name_length, table_name_length, link_id_length;
+  DBUG_ENTER("spider_get_sys_link_mon_key");
+  if (
+    table->field[SPIDER_LINK_MON_SERVERS_DB_NAME_POS]->is_null() ||
+    table->field[SPIDER_LINK_MON_SERVERS_TABLE_NAME_POS]->is_null() ||
+    table->field[SPIDER_LINK_MON_SERVERS_LINK_ID_POS]->is_null()
+  ) {
+    my_printf_error(ER_SPIDER_SYS_TABLE_VERSION_NUM,
+      ER_SPIDER_SYS_TABLE_VERSION_STR, MYF(0),
+      SPIDER_SYS_LINK_MON_TABLE_NAME_STR);
+    DBUG_RETURN(ER_SPIDER_SYS_TABLE_VERSION_NUM);
+  }
+
+  if (
+    !(db_name = get_field(mem_root,
+      table->field[SPIDER_LINK_MON_SERVERS_DB_NAME_POS])) ||
+    !(table_name = get_field(mem_root,
+      table->field[SPIDER_LINK_MON_SERVERS_TABLE_NAME_POS])) ||
+    !(link_id = get_field(mem_root,
+      table->field[SPIDER_LINK_MON_SERVERS_LINK_ID_POS]))
+  )
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+
+  db_name_length = strlen(db_name);
+  table_name_length = strlen(table_name);
+  link_id_length = strlen(link_id);
+
+  if (
+    db_name_length > SPIDER_SYS_LINK_MON_TABLE_DB_NAME_SIZE ||
+    table_name_length > SPIDER_SYS_LINK_MON_TABLE_TABLE_NAME_SIZE ||
+    link_id_length > SPIDER_SYS_LINK_MON_TABLE_LINK_ID_SIZE
+  ) {
+    my_printf_error(ER_SPIDER_SYS_TABLE_VERSION_NUM,
+      ER_SPIDER_SYS_TABLE_VERSION_STR, MYF(0),
+      SPIDER_SYS_LINK_MON_TABLE_NAME_STR);
+    DBUG_RETURN(ER_SPIDER_SYS_TABLE_VERSION_NUM);
+  }
+
+  if (
+    db_name_length == mon_key->db_name_length &&
+    table_name_length == mon_key->table_name_length &&
+    link_id_length == mon_key->link_id_length &&
+    !memcmp(db_name, mon_key->db_name, db_name_length) &&
+    !memcmp(table_name, mon_key->table_name, table_name_length) &&
+    !memcmp(link_id, mon_key->link_id, link_id_length)
+  ) {
+    /* same key */
+    *same = 1;
+    DBUG_RETURN(0);
+  }
+
+  *same = 0;
+  mon_key->db_name_length = db_name_length;
+  memcpy(mon_key->db_name, db_name, db_name_length + 1);
+  mon_key->table_name_length = table_name_length;
+  memcpy(mon_key->table_name, table_name, table_name_length + 1);
+  mon_key->link_id_length = link_id_length;
+  memcpy(mon_key->link_id, link_id, link_id_length + 1);
+  DBUG_RETURN(0);
+}
+
+int spider_get_sys_link_mon_server_id(
+  TABLE *table,
+  uint32 *server_id,
+  MEM_ROOT *mem_root
+) {
+  char *ptr;
+  int error_num = 0;
+  DBUG_ENTER("spider_get_sys_link_mon_server_id");
+  if ((ptr = get_field(mem_root,
+    table->field[SPIDER_LINK_MON_SERVERS_SID_POS])))
+    *server_id = (uint32) my_strtoll10(ptr, (char**) NULL, &error_num);
+  else
+    *server_id = ~(uint32) 0;
+  DBUG_RETURN(error_num);
+}
+
+int spider_get_sys_link_mon_connect_info(
+  TABLE *table,
+  SPIDER_SHARE *share,
+  int link_idx,
+  MEM_ROOT *mem_root
+) {
+  char *ptr;
+  int error_num = 0;
+  DBUG_ENTER("spider_get_sys_link_mon_connect_info");
+  if (
+    !table->field[SPIDER_LINK_MON_SERVERS_SERVER_POS]->is_null() &&
+    (ptr = get_field(mem_root,
+      table->field[SPIDER_LINK_MON_SERVERS_SERVER_POS]))
+  ) {
+    share->server_names_lengths[link_idx] = strlen(ptr);
+    share->server_names[link_idx] =
+      spider_create_string(ptr, share->server_names_lengths[link_idx]);
+  } else {
+    share->server_names_lengths[link_idx] = 0;
+    share->server_names[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_LINK_MON_SERVERS_SCHEME_POS]->is_null() &&
+    (ptr = get_field(mem_root,
+      table->field[SPIDER_LINK_MON_SERVERS_SCHEME_POS]))
+  ) {
+    share->tgt_wrappers_lengths[link_idx] = strlen(ptr);
+    share->tgt_wrappers[link_idx] =
+      spider_create_string(ptr, share->tgt_wrappers_lengths[link_idx]);
+  } else {
+    share->tgt_wrappers_lengths[link_idx] = 0;
+    share->tgt_wrappers[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_LINK_MON_SERVERS_HOST_POS]->is_null() &&
+    (ptr = get_field(mem_root, table->field[SPIDER_LINK_MON_SERVERS_HOST_POS]))
+  ) {
+    share->tgt_hosts_lengths[link_idx] = strlen(ptr);
+    share->tgt_hosts[link_idx] =
+      spider_create_string(ptr, share->tgt_hosts_lengths[link_idx]);
+  } else {
+    share->tgt_hosts_lengths[link_idx] = 0;
+    share->tgt_hosts[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_LINK_MON_SERVERS_PORT_POS]->is_null() &&
+    (ptr = get_field(mem_root, table->field[SPIDER_LINK_MON_SERVERS_PORT_POS]))
+  ) {
+    share->tgt_ports[link_idx] = atol(ptr);
+  } else {
+    share->tgt_ports[link_idx] = -1;
+  }
+  if (
+    !table->field[SPIDER_LINK_MON_SERVERS_SOCKET_POS]->is_null() &&
+    (ptr = get_field(mem_root,
+      table->field[SPIDER_LINK_MON_SERVERS_SOCKET_POS]))
+  ) {
+    share->tgt_sockets_lengths[link_idx] = strlen(ptr);
+    share->tgt_sockets[link_idx] =
+      spider_create_string(ptr, share->tgt_sockets_lengths[link_idx]);
+  } else {
+    share->tgt_sockets_lengths[link_idx] = 0;
+    share->tgt_sockets[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_LINK_MON_SERVERS_USERNAME_POS]->is_null() &&
+    (ptr = get_field(mem_root,
+      table->field[SPIDER_LINK_MON_SERVERS_USERNAME_POS]))
+  ) {
+    share->tgt_usernames_lengths[link_idx] = strlen(ptr);
+    share->tgt_usernames[link_idx] =
+      spider_create_string(ptr, share->tgt_usernames_lengths[link_idx]);
+  } else {
+    share->tgt_usernames_lengths[link_idx] = 0;
+    share->tgt_usernames[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_LINK_MON_SERVERS_PASSWORD_POS]->is_null() &&
+    (ptr = get_field(mem_root,
+      table->field[SPIDER_LINK_MON_SERVERS_PASSWORD_POS]))
+  ) {
+    share->tgt_passwords_lengths[link_idx] = strlen(ptr);
+    share->tgt_passwords[link_idx] =
+      spider_create_string(ptr, share->tgt_passwords_lengths[link_idx]);
+  } else {
+    share->tgt_passwords_lengths[link_idx] = 0;
+    share->tgt_passwords[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_LINK_MON_SERVERS_SSL_CA_POS]->is_null() &&
+    (ptr = get_field(mem_root,
+      table->field[SPIDER_LINK_MON_SERVERS_SSL_CA_POS]))
+  ) {
+    share->tgt_ssl_cas_lengths[link_idx] = strlen(ptr);
+    share->tgt_ssl_cas[link_idx] =
+      spider_create_string(ptr, share->tgt_ssl_cas_lengths[link_idx]);
+  } else {
+    share->tgt_ssl_cas_lengths[link_idx] = 0;
+    share->tgt_ssl_cas[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_LINK_MON_SERVERS_SSL_CAPATH_POS]->is_null() &&
+    (ptr = get_field(mem_root,
+      table->field[SPIDER_LINK_MON_SERVERS_SSL_CAPATH_POS]))
+  ) {
+    share->tgt_ssl_capaths_lengths[link_idx] = strlen(ptr);
+    share->tgt_ssl_capaths[link_idx] =
+      spider_create_string(ptr, share->tgt_ssl_capaths_lengths[link_idx]);
+  } else {
+    share->tgt_ssl_capaths_lengths[link_idx] = 0;
+    share->tgt_ssl_capaths[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_LINK_MON_SERVERS_SSL_CERT_POS]->is_null() &&
+    (ptr = get_field(mem_root,
+      table->field[SPIDER_LINK_MON_SERVERS_SSL_CERT_POS]))
+  ) {
+    share->tgt_ssl_certs_lengths[link_idx] = strlen(ptr);
+    share->tgt_ssl_certs[link_idx] =
+      spider_create_string(ptr, share->tgt_ssl_certs_lengths[link_idx]);
+  } else {
+    share->tgt_ssl_certs_lengths[link_idx] = 0;
+    share->tgt_ssl_certs[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_LINK_MON_SERVERS_SSL_CIPHER_POS]->is_null() &&
+    (ptr = get_field(mem_root,
+      table->field[SPIDER_LINK_MON_SERVERS_SSL_CIPHER_POS]))
+  ) {
+    share->tgt_ssl_ciphers_lengths[link_idx] = strlen(ptr);
+    share->tgt_ssl_ciphers[link_idx] =
+      spider_create_string(ptr, share->tgt_ssl_ciphers_lengths[link_idx]);
+  } else {
+    share->tgt_ssl_ciphers_lengths[link_idx] = 0;
+    share->tgt_ssl_ciphers[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_LINK_MON_SERVERS_SSL_KEY_POS]->is_null() &&
+    (ptr = get_field(mem_root,
+      table->field[SPIDER_LINK_MON_SERVERS_SSL_KEY_POS]))
+  ) {
+    share->tgt_ssl_keys_lengths[link_idx] = strlen(ptr);
+    share->tgt_ssl_keys[link_idx] =
+      spider_create_string(ptr, share->tgt_ssl_keys_lengths[link_idx]);
+  } else {
+    share->tgt_ssl_keys_lengths[link_idx] = 0;
+    share->tgt_ssl_keys[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_LINK_MON_SERVERS_SSL_VERIFY_SERVER_CERT_POS]->
+      is_null() &&
+    (ptr = get_field(mem_root,
+      table->field[SPIDER_LINK_MON_SERVERS_SSL_VERIFY_SERVER_CERT_POS]))
+  ) {
+    share->tgt_ssl_vscs[link_idx] = atol(ptr);
+  } else
+    share->tgt_ssl_vscs[link_idx] = -1;
+  if (
+    !table->field[SPIDER_LINK_MON_SERVERS_DEFAULT_FILE_POS]->is_null() &&
+    (ptr = get_field(mem_root,
+      table->field[SPIDER_LINK_MON_SERVERS_DEFAULT_FILE_POS]))
+  ) {
+    share->tgt_default_files_lengths[link_idx] = strlen(ptr);
+    share->tgt_default_files[link_idx] =
+      spider_create_string(ptr, share->tgt_default_files_lengths[link_idx]);
+  } else {
+    share->tgt_default_files_lengths[link_idx] = 0;
+    share->tgt_default_files[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_LINK_MON_SERVERS_DEFAULT_GROUP_POS]->is_null() &&
+    (ptr = get_field(mem_root,
+      table->field[SPIDER_LINK_MON_SERVERS_DEFAULT_GROUP_POS]))
+  ) {
+    share->tgt_default_groups_lengths[link_idx] = strlen(ptr);
+    share->tgt_default_groups[link_idx] =
+      spider_create_string(ptr, share->tgt_default_groups_lengths[link_idx]);
+  } else {
+    share->tgt_default_groups_lengths[link_idx] = 0;
+    share->tgt_default_groups[link_idx] = NULL;
+  }
+  if (
+    !table->field[SPIDER_LINK_MON_SERVERS_DSN_POS]->is_null() &&
+    (ptr = get_field(mem_root, table->field[SPIDER_LINK_MON_SERVERS_DSN_POS]))
+  ) {
+    share->tgt_dsns_lengths[link_idx] = strlen(ptr);
+    share->tgt_dsns[link_idx] =
+      spider_create_string(ptr, share->tgt_dsns_lengths[link_idx]);
+  } else {
+    share->tgt_dsns_lengths[link_idx] = 0;
+    share->tgt_dsns[link_idx] = NULL;
+  }
+  DBUG_RETURN(error_num);
+}
+
+int spider_get_link_statuses(
+  TABLE *table,
+  SPIDER_SHARE *share,
+  MEM_ROOT *mem_root
+) {
+  int error_num, roop_count;
+  char table_key[MAX_KEY_LENGTH];
+  DBUG_ENTER("spider_get_link_statuses");
+  table->use_all_columns();
+  spider_store_tables_name(table, share->table_name,
+    share->table_name_length);
+  for (roop_count = 0; roop_count < (int) share->link_count; roop_count++)
+  {
+    spider_store_tables_link_idx(table, roop_count);
+    if ((error_num = spider_check_sys_table(table, table_key)))
+    {
+      if (
+        (error_num == HA_ERR_KEY_NOT_FOUND || error_num == HA_ERR_END_OF_FILE)
+      ) {
+/*
+        table->file->print_error(error_num, MYF(0));
+*/
+        DBUG_RETURN(error_num);
+      }
+    } else if ((error_num =
+      spider_get_sys_tables_link_status(table, share, roop_count, mem_root)))
+    {
+      table->file->print_error(error_num, MYF(0));
+      DBUG_RETURN(error_num);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_sys_insert_or_update_table_sts(
+  THD *thd,
+  const char *name,
+  uint name_length,
+  ha_statistics *stat,
+  bool need_lock
+) {
+  int error_num;
+  TABLE *table_sts = NULL;
+  SPIDER_Open_tables_backup open_tables_backup;
+  DBUG_ENTER("spider_sys_insert_or_update_table_sts");
+  if (
+    !(table_sts = spider_open_sys_table(
+      thd, SPIDER_SYS_TABLE_STS_TABLE_NAME_STR,
+      SPIDER_SYS_TABLE_STS_TABLE_NAME_LEN, TRUE,
+      &open_tables_backup, need_lock, &error_num))
+  ) {
+    goto error;
+  }
+  if ((error_num = spider_insert_or_update_table_sts(
+    table_sts,
+    name,
+    name_length,
+    stat
+  )))
+    goto error;
+  spider_close_sys_table(thd, table_sts, &open_tables_backup, need_lock);
+  table_sts = NULL;
+  DBUG_RETURN(0);
+
+error:
+  if (table_sts)
+    spider_close_sys_table(thd, table_sts, &open_tables_backup, need_lock);
+  DBUG_RETURN(error_num);
+}
+
+int spider_sys_insert_or_update_table_crd(
+  THD *thd,
+  const char *name,
+  uint name_length,
+  longlong *cardinality,
+  uint number_of_keys,
+  bool need_lock
+) {
+  int error_num;
+  TABLE *table_crd = NULL;
+  SPIDER_Open_tables_backup open_tables_backup;
+  DBUG_ENTER("spider_sys_insert_or_update_table_crd");
+  if (
+    !(table_crd = spider_open_sys_table(
+      thd, SPIDER_SYS_TABLE_CRD_TABLE_NAME_STR,
+      SPIDER_SYS_TABLE_CRD_TABLE_NAME_LEN, TRUE,
+      &open_tables_backup, need_lock, &error_num))
+  ) {
+    goto error;
+  }
+  if ((error_num = spider_insert_or_update_table_crd(
+    table_crd,
+    name,
+    name_length,
+    cardinality,
+    number_of_keys
+  )))
+    goto error;
+  spider_close_sys_table(thd, table_crd, &open_tables_backup, need_lock);
+  table_crd = NULL;
+  DBUG_RETURN(0);
+
+error:
+  if (table_crd)
+    spider_close_sys_table(thd, table_crd, &open_tables_backup, need_lock);
+  DBUG_RETURN(error_num);
+}
+
+int spider_sys_delete_table_sts(
+  THD *thd,
+  const char *name,
+  uint name_length,
+  bool need_lock
+) {
+  int error_num;
+  TABLE *table_sts = NULL;
+  SPIDER_Open_tables_backup open_tables_backup;
+  DBUG_ENTER("spider_sys_delete_table_sts");
+  if (
+    !(table_sts = spider_open_sys_table(
+      thd, SPIDER_SYS_TABLE_STS_TABLE_NAME_STR,
+      SPIDER_SYS_TABLE_STS_TABLE_NAME_LEN, TRUE,
+      &open_tables_backup, need_lock, &error_num))
+  ) {
+    goto error;
+  }
+  if ((error_num = spider_delete_table_sts(
+    table_sts,
+    name,
+    name_length
+  )))
+    goto error;
+  spider_close_sys_table(thd, table_sts, &open_tables_backup, need_lock);
+  table_sts = NULL;
+  DBUG_RETURN(0);
+
+error:
+  if (table_sts)
+    spider_close_sys_table(thd, table_sts, &open_tables_backup, need_lock);
+  DBUG_RETURN(error_num);
+}
+
+int spider_sys_delete_table_crd(
+  THD *thd,
+  const char *name,
+  uint name_length,
+  bool need_lock
+) {
+  int error_num;
+  TABLE *table_crd = NULL;
+  SPIDER_Open_tables_backup open_tables_backup;
+  DBUG_ENTER("spider_sys_delete_table_crd");
+  if (
+    !(table_crd = spider_open_sys_table(
+      thd, SPIDER_SYS_TABLE_CRD_TABLE_NAME_STR,
+      SPIDER_SYS_TABLE_CRD_TABLE_NAME_LEN, TRUE,
+      &open_tables_backup, need_lock, &error_num))
+  ) {
+    goto error;
+  }
+  if ((error_num = spider_delete_table_crd(
+    table_crd,
+    name,
+    name_length
+  )))
+    goto error;
+  spider_close_sys_table(thd, table_crd, &open_tables_backup, need_lock);
+  table_crd = NULL;
+  DBUG_RETURN(0);
+
+error:
+  if (table_crd)
+    spider_close_sys_table(thd, table_crd, &open_tables_backup, need_lock);
+  DBUG_RETURN(error_num);
+}
+
+int spider_sys_get_table_sts(
+  THD *thd,
+  const char *name,
+  uint name_length,
+  ha_statistics *stat,
+  bool need_lock
+) {
+  int error_num;
+  char table_key[MAX_KEY_LENGTH];
+  TABLE *table_sts = NULL;
+  SPIDER_Open_tables_backup open_tables_backup;
+  DBUG_ENTER("spider_sys_get_table_sts");
+  if (
+    !(table_sts = spider_open_sys_table(
+      thd, SPIDER_SYS_TABLE_STS_TABLE_NAME_STR,
+      SPIDER_SYS_TABLE_STS_TABLE_NAME_LEN, TRUE,
+      &open_tables_backup, need_lock, &error_num))
+  ) {
+    goto error;
+  }
+
+  table_sts->use_all_columns();
+  spider_store_tables_name(table_sts, name, name_length);
+  if ((error_num = spider_check_sys_table(table_sts, table_key)))
+  {
+    if (error_num != HA_ERR_KEY_NOT_FOUND && error_num != HA_ERR_END_OF_FILE)
+    {
+      table_sts->file->print_error(error_num, MYF(0));
+    }
+    goto error;
+  } else {
+    spider_get_sys_table_sts_info(
+      table_sts,
+      stat
+    );
+  }
+
+  spider_close_sys_table(thd, table_sts, &open_tables_backup, need_lock);
+  table_sts = NULL;
+  DBUG_RETURN(0);
+
+error:
+  if (table_sts)
+    spider_close_sys_table(thd, table_sts, &open_tables_backup, need_lock);
+  DBUG_RETURN(error_num);
+}
+
+int spider_sys_get_table_crd(
+  THD *thd,
+  const char *name,
+  uint name_length,
+  longlong *cardinality,
+  uint number_of_keys,
+  bool need_lock
+) {
+  int error_num;
+  char table_key[MAX_KEY_LENGTH];
+  bool index_inited = FALSE;
+  TABLE *table_crd = NULL;
+  SPIDER_Open_tables_backup open_tables_backup;
+  DBUG_ENTER("spider_sys_get_table_crd");
+
+  if (
+    !(table_crd = spider_open_sys_table(
+      thd, SPIDER_SYS_TABLE_CRD_TABLE_NAME_STR,
+      SPIDER_SYS_TABLE_CRD_TABLE_NAME_LEN, TRUE,
+      &open_tables_backup, need_lock, &error_num))
+  ) {
+    goto error;
+  }
+
+  table_crd->use_all_columns();
+  spider_store_tables_name(table_crd, name, name_length);
+  if ((error_num = spider_get_sys_table_by_idx(table_crd, table_key, 0,
+    SPIDER_SYS_TABLE_CRD_PK_COL_CNT - 1)))
+  {
+    if (error_num != HA_ERR_KEY_NOT_FOUND && error_num != HA_ERR_END_OF_FILE)
+    {
+      table_crd->file->print_error(error_num, MYF(0));
+    }
+    goto error;
+  } else {
+    index_inited = TRUE;
+    do {
+      spider_get_sys_table_crd_info(
+        table_crd,
+        cardinality,
+        number_of_keys
+      );
+      error_num = spider_sys_index_next_same(table_crd, table_key);
+    } while (error_num == 0);
+  }
+  index_inited = FALSE;
+  if ((error_num = spider_sys_index_end(table_crd)))
+  {
+    table_crd->file->print_error(error_num, MYF(0));
+    goto error;
+  }
+
+  spider_close_sys_table(thd, table_crd, &open_tables_backup, need_lock);
+  table_crd = NULL;
+  DBUG_RETURN(0);
+
+error:
+  if (index_inited)
+    spider_sys_index_end(table_crd);
+
+  if (table_crd)
+    spider_close_sys_table(thd, table_crd, &open_tables_backup, need_lock);
+  DBUG_RETURN(error_num);
+}
+
+int spider_sys_replace(
+  TABLE *table,
+  bool *modified_non_trans_table
+) {
+  int error_num, key_num;
+  bool last_uniq_key;
+  char table_key[MAX_KEY_LENGTH];
+  DBUG_ENTER("spider_sys_replace");
+
+  while ((error_num = spider_write_sys_table_row(table, FALSE)))
+  {
+    if (
+      table->file->is_fatal_error(error_num, HA_CHECK_DUP) ||
+      (key_num = table->file->get_dup_key(error_num)) < 0
+    )
+      goto error;
+
+    if (table->file->ha_table_flags() & HA_DUPLICATE_POS)
+    {
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 50200
+      error_num = table->file->ha_rnd_pos(table->record[1],
+        table->file->dup_ref);
+#else
+      error_num = table->file->rnd_pos(table->record[1], table->file->dup_ref);
+#endif
+      if (error_num)
+      {
+        if (error_num == HA_ERR_RECORD_DELETED)
+          error_num = HA_ERR_KEY_NOT_FOUND;
+        goto error;
+      }
+    } else {
+      if ((error_num = table->file->extra(HA_EXTRA_FLUSH_CACHE)))
+        goto error;
+
+      key_copy((uchar*)table_key, table->record[0],
+        table->key_info + key_num, 0);
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 50200
+      error_num = table->file->ha_index_read_idx_map(table->record[1], key_num,
+        (const uchar*)table_key, HA_WHOLE_KEY, HA_READ_KEY_EXACT);
+#else
+      error_num = table->file->index_read_idx_map(table->record[1], key_num,
+        (const uchar*)table_key, HA_WHOLE_KEY, HA_READ_KEY_EXACT);
+#endif
+      if (error_num)
+      {
+        if (error_num == HA_ERR_RECORD_DELETED)
+          error_num = HA_ERR_KEY_NOT_FOUND;
+        goto error;
+      }
+    }
+
+    last_uniq_key = TRUE;
+    while (++key_num < (int) table->s->keys)
+      if (table->key_info[key_num].flags & HA_NOSAME)
+        last_uniq_key = FALSE;
+
+    if (
+      last_uniq_key &&
+      !table->file->referenced_by_foreign_key()
+    ) {
+      if ((error_num = spider_update_sys_table_row(table)))
+        goto error;
+      DBUG_RETURN(0);
+    } else {
+      if ((error_num = spider_delete_sys_table_row(table, 1, FALSE)))
+        goto error;
+      *modified_non_trans_table = TRUE;
+    }
+  }
+
+  DBUG_RETURN(0);
+
+error:
+  DBUG_RETURN(error_num);
+}
+
+#ifdef SPIDER_use_LEX_CSTRING_for_Field_blob_constructor
+TABLE *spider_mk_sys_tmp_table(
+  THD *thd,
+  TABLE *table,
+  TMP_TABLE_PARAM *tmp_tbl_prm,
+  const LEX_CSTRING *field_name,
+  CHARSET_INFO *cs
+)
+#else
+TABLE *spider_mk_sys_tmp_table(
+  THD *thd,
+  TABLE *table,
+  TMP_TABLE_PARAM *tmp_tbl_prm,
+  const char *field_name,
+  CHARSET_INFO *cs
+)
+#endif
+{
+  Field_blob *field;
+  Item_field *i_field;
+  List<Item> i_list;
+  TABLE *tmp_table;
+  DBUG_ENTER("spider_mk_sys_tmp_table");
+
+#ifdef SPIDER_FIELD_FIELDPTR_REQUIRES_THDPTR
+  if (!(field = new (thd->mem_root) Field_blob(
+    4294967295U, FALSE, field_name, cs, TRUE)))
+    goto error_alloc_field;
+#else
+  if (!(field = new Field_blob(
+    4294967295U, FALSE, field_name, cs, TRUE)))
+    goto error_alloc_field;
+#endif
+  field->init(table);
+
+#ifdef SPIDER_FIELD_FIELDPTR_REQUIRES_THDPTR
+  if (!(i_field = new (thd->mem_root) Item_field(thd, (Field *) field)))
+    goto error_alloc_item_field;
+#else
+  if (!(i_field = new Item_field((Field *) field)))
+    goto error_alloc_item_field;
+#endif
+
+  if (i_list.push_back(i_field))
+    goto error_push_item;
+
+  if (!(tmp_table = create_tmp_table(thd, tmp_tbl_prm,
+    i_list, (ORDER*) NULL, FALSE, FALSE,
+    (TMP_TABLE_FORCE_MYISAM | TMP_TABLE_ALL_COLUMNS),
+    HA_POS_ERROR, &SPIDER_empty_string)))
+    goto error_create_tmp_table;
+  DBUG_RETURN(tmp_table);
+
+error_create_tmp_table:
+error_push_item:
+  delete i_field;
+error_alloc_item_field:
+  delete field;
+error_alloc_field:
+  DBUG_RETURN(NULL);
+}
+
+void spider_rm_sys_tmp_table(
+  THD *thd,
+  TABLE *tmp_table,
+  TMP_TABLE_PARAM *tmp_tbl_prm
+) {
+  DBUG_ENTER("spider_rm_sys_tmp_table");
+  free_tmp_table(thd, tmp_table);
+  tmp_tbl_prm->cleanup();
+  tmp_tbl_prm->field_count = 1;
+  DBUG_VOID_RETURN;
+}
+
+#ifdef SPIDER_use_LEX_CSTRING_for_Field_blob_constructor
+TABLE *spider_mk_sys_tmp_table_for_result(
+  THD *thd,
+  TABLE *table,
+  TMP_TABLE_PARAM *tmp_tbl_prm,
+  const LEX_CSTRING *field_name1,
+  const LEX_CSTRING *field_name2,
+  const LEX_CSTRING *field_name3,
+  CHARSET_INFO *cs
+)
+#else
+TABLE *spider_mk_sys_tmp_table_for_result(
+  THD *thd,
+  TABLE *table,
+  TMP_TABLE_PARAM *tmp_tbl_prm,
+  const char *field_name1,
+  const char *field_name2,
+  const char *field_name3,
+  CHARSET_INFO *cs
+)
+#endif
+{
+  Field_blob *field1, *field2, *field3;
+  Item_field *i_field1, *i_field2, *i_field3;
+  List<Item> i_list;
+  TABLE *tmp_table;
+  DBUG_ENTER("spider_mk_sys_tmp_table_for_result");
+
+#ifdef SPIDER_FIELD_FIELDPTR_REQUIRES_THDPTR
+  if (!(field1 = new (thd->mem_root) Field_blob(
+    4294967295U, FALSE, field_name1, cs, TRUE)))
+    goto error_alloc_field1;
+#else
+  if (!(field1 = new Field_blob(
+    4294967295U, FALSE, field_name1, cs, TRUE)))
+    goto error_alloc_field1;
+#endif
+  field1->init(table);
+
+#ifdef SPIDER_FIELD_FIELDPTR_REQUIRES_THDPTR
+  if (!(i_field1 = new (thd->mem_root) Item_field(thd, (Field *) field1)))
+    goto error_alloc_item_field1;
+#else
+  if (!(i_field1 = new Item_field((Field *) field1)))
+    goto error_alloc_item_field1;
+#endif
+
+  if (i_list.push_back(i_field1))
+    goto error_push_item1;
+
+#ifdef SPIDER_FIELD_FIELDPTR_REQUIRES_THDPTR
+  if (!(field2 = new (thd->mem_root) Field_blob(
+    4294967295U, FALSE, field_name2, cs, TRUE)))
+    goto error_alloc_field2;
+#else
+  if (!(field2 = new Field_blob(
+    4294967295U, FALSE, field_name2, cs, TRUE)))
+    goto error_alloc_field2;
+#endif
+  field2->init(table);
+
+#ifdef SPIDER_FIELD_FIELDPTR_REQUIRES_THDPTR
+  if (!(i_field2 = new (thd->mem_root) Item_field(thd, (Field *) field2)))
+    goto error_alloc_item_field2;
+#else
+  if (!(i_field2 = new Item_field((Field *) field2)))
+    goto error_alloc_item_field2;
+#endif
+
+  if (i_list.push_back(i_field2))
+    goto error_push_item2;
+
+#ifdef SPIDER_FIELD_FIELDPTR_REQUIRES_THDPTR
+  if (!(field3 = new (thd->mem_root) Field_blob(
+    4294967295U, FALSE, field_name3, cs, TRUE)))
+    goto error_alloc_field3;
+#else
+  if (!(field3 = new Field_blob(
+    4294967295U, FALSE, field_name3, cs, TRUE)))
+    goto error_alloc_field3;
+#endif
+  field3->init(table);
+
+#ifdef SPIDER_FIELD_FIELDPTR_REQUIRES_THDPTR
+  if (!(i_field3 = new (thd->mem_root) Item_field(thd, (Field *) field3)))
+    goto error_alloc_item_field3;
+#else
+  if (!(i_field3 = new Item_field((Field *) field3)))
+    goto error_alloc_item_field3;
+#endif
+
+  if (i_list.push_back(i_field3))
+    goto error_push_item3;
+
+  if (!(tmp_table = create_tmp_table(thd, tmp_tbl_prm,
+    i_list, (ORDER*) NULL, FALSE, FALSE,
+    (TMP_TABLE_FORCE_MYISAM | TMP_TABLE_ALL_COLUMNS),
+    HA_POS_ERROR, &SPIDER_empty_string)))
+    goto error_create_tmp_table;
+  DBUG_RETURN(tmp_table);
+
+error_create_tmp_table:
+error_push_item3:
+  delete i_field3;
+error_alloc_item_field3:
+  delete field3;
+error_alloc_field3:
+error_push_item2:
+  delete i_field2;
+error_alloc_item_field2:
+  delete field2;
+error_alloc_field2:
+error_push_item1:
+  delete i_field1;
+error_alloc_item_field1:
+  delete field1;
+error_alloc_field1:
+  DBUG_RETURN(NULL);
+}
+
+void spider_rm_sys_tmp_table_for_result(
+  THD *thd,
+  TABLE *tmp_table,
+  TMP_TABLE_PARAM *tmp_tbl_prm
+) {
+  DBUG_ENTER("spider_rm_sys_tmp_table_for_result");
+  free_tmp_table(thd, tmp_table);
+  tmp_tbl_prm->cleanup();
+  tmp_tbl_prm->field_count = 3;
+  DBUG_VOID_RETURN;
+}
+
+TABLE *spider_find_temporary_table(
+  THD *thd,
+  TABLE_LIST *table_list
+) {
+  DBUG_ENTER("spider_find_temporary_table");
+#ifdef SPIDER_open_temporary_table
+  if (thd->open_temporary_table(table_list))
+  {
+    DBUG_RETURN(NULL);
+  } else {
+    DBUG_RETURN(table_list->table);
+  }
+#else
+  DBUG_RETURN(find_temporary_table(A,B));
+#endif
+}
diff --git a/storage/spider/spd_sys_table.h b/storage/spider/spd_sys_table.h
new file mode 100644
index 00000000..d5faf679
--- /dev/null
+++ b/storage/spider/spd_sys_table.h
@@ -0,0 +1,647 @@
+/* Copyright (C) 2008-2019 Kentoku Shiba
+   Copyright (C) 2019 MariaDB corp
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+#define SPIDER_SYS_XA_TABLE_NAME_STR "spider_xa"
+#define SPIDER_SYS_XA_TABLE_NAME_LEN 9
+#define SPIDER_SYS_XA_MEMBER_TABLE_NAME_STR "spider_xa_member"
+#define SPIDER_SYS_XA_MEMBER_TABLE_NAME_LEN 16
+#define SPIDER_SYS_TABLES_TABLE_NAME_STR "spider_tables"
+#define SPIDER_SYS_TABLES_TABLE_NAME_LEN 13
+#define SPIDER_SYS_LINK_MON_TABLE_NAME_STR "spider_link_mon_servers"
+#define SPIDER_SYS_LINK_MON_TABLE_NAME_LEN 23
+#define SPIDER_SYS_LINK_FAILED_TABLE_NAME_STR "spider_link_failed_log"
+#define SPIDER_SYS_LINK_FAILED_TABLE_NAME_LEN 22
+#define SPIDER_SYS_XA_FAILED_TABLE_NAME_STR "spider_xa_failed_log"
+#define SPIDER_SYS_XA_FAILED_TABLE_NAME_LEN 20
+#define SPIDER_SYS_POS_FOR_RECOVERY_TABLE_NAME_STR "spider_table_position_for_recovery"
+#define SPIDER_SYS_POS_FOR_RECOVERY_TABLE_NAME_LEN 34
+#define SPIDER_SYS_TABLE_STS_TABLE_NAME_STR "spider_table_sts"
+#define SPIDER_SYS_TABLE_STS_TABLE_NAME_LEN 16
+#define SPIDER_SYS_TABLE_CRD_TABLE_NAME_STR "spider_table_crd"
+#define SPIDER_SYS_TABLE_CRD_TABLE_NAME_LEN 16
+#define SPIDER_SYS_RW_TBLS_TABLE_NAME_STR "spider_rewrite_tables"
+#define SPIDER_SYS_RW_TBLS_TABLE_NAME_LEN 21
+#define SPIDER_SYS_RW_TBL_TBLS_TABLE_NAME_STR "spider_rewrite_table_tables"
+#define SPIDER_SYS_RW_TBL_TBLS_TABLE_NAME_LEN 27
+#define SPIDER_SYS_RW_TBL_PTTS_TABLE_NAME_STR "spider_rewrite_table_partitions"
+#define SPIDER_SYS_RW_TBL_PTTS_TABLE_NAME_LEN 31
+#define SPIDER_SYS_RW_TBL_SPTTS_TABLE_NAME_STR "spider_rewrite_table_subpartitions"
+#define SPIDER_SYS_RW_TBL_SPTTS_TABLE_NAME_LEN 34
+#define SPIDER_SYS_RWN_TBLS_TABLE_NAME_STR "spider_rewritten_tables"
+#define SPIDER_SYS_RWN_TBLS_TABLE_NAME_LEN 23
+
+#define SPIDER_SYS_XA_PREPARED_STR "PREPARED"
+#define SPIDER_SYS_XA_NOT_YET_STR "NOT YET"
+#define SPIDER_SYS_XA_COMMIT_STR "COMMIT"
+#define SPIDER_SYS_XA_ROLLBACK_STR "ROLLBACK"
+
+#define SPIDER_SYS_XA_COL_CNT 5
+#define SPIDER_SYS_XA_PK_COL_CNT 3
+#define SPIDER_SYS_XA_IDX1_COL_CNT 1
+#define SPIDER_SYS_XA_MEMBER_COL_CNT 19
+#define SPIDER_SYS_XA_MEMBER_PK_COL_CNT 6
+#define SPIDER_SYS_TABLES_COL_CNT 26
+#define SPIDER_SYS_TABLES_PK_COL_CNT 3
+#define SPIDER_SYS_TABLES_IDX1_COL_CNT 1
+#define SPIDER_SYS_TABLES_UIDX1_COL_CNT 3
+#define SPIDER_SYS_LINK_MON_TABLE_COL_CNT 20
+#define SPIDER_SYS_LINK_FAILED_TABLE_COL_CNT 4
+#define SPIDER_SYS_XA_FAILED_TABLE_COL_CNT 22
+#define SPIDER_SYS_POS_FOR_RECOVERY_TABLE_COL_CNT 7
+#define SPIDER_SYS_TABLE_STS_COL_CNT 11
+#define SPIDER_SYS_TABLE_STS_PK_COL_CNT 2
+#define SPIDER_SYS_TABLE_CRD_COL_CNT 4
+#define SPIDER_SYS_TABLE_CRD_PK_COL_CNT 3
+#define SPIDER_SYS_RW_TBLS_COL_CNT 3
+#define SPIDER_SYS_RW_TBL_TBLS_COL_CNT 8
+#define SPIDER_SYS_RW_TBL_PTTS_COL_CNT 7
+#define SPIDER_SYS_RW_TBL_SPTTS_COL_CNT 8
+#define SPIDER_SYS_RWN_TBLS_COL_CNT 4
+
+#define SPIDER_SYS_LINK_MON_TABLE_DB_NAME_SIZE 64
+#define SPIDER_SYS_LINK_MON_TABLE_TABLE_NAME_SIZE 64
+#define SPIDER_SYS_LINK_MON_TABLE_LINK_ID_SIZE 64
+
+class SPIDER_MON_KEY: public SPIDER_SORT
+{
+public:
+  char db_name[SPIDER_SYS_LINK_MON_TABLE_DB_NAME_SIZE + 1];
+  char table_name[SPIDER_SYS_LINK_MON_TABLE_TABLE_NAME_SIZE + 1];
+  char link_id[SPIDER_SYS_LINK_MON_TABLE_LINK_ID_SIZE + 1];
+  uint db_name_length;
+  uint table_name_length;
+  uint link_id_length;
+};
+
+TABLE *spider_open_sys_table(
+  THD *thd,
+  const char *table_name,
+  int table_name_length,
+  bool write,
+  SPIDER_Open_tables_backup *open_tables_backup,
+  bool need_lock,
+  int *error_num
+);
+
+void spider_close_sys_table(
+  THD *thd,
+  TABLE *table,
+  SPIDER_Open_tables_backup *open_tables_backup,
+  bool need_lock
+);
+
+#if MYSQL_VERSION_ID < 50500
+#else
+bool spider_sys_open_and_lock_tables(
+  THD *thd,
+  TABLE_LIST **tables,
+  SPIDER_Open_tables_backup *open_tables_backup
+);
+
+TABLE *spider_sys_open_table(
+  THD *thd,
+  TABLE_LIST *tables,
+  SPIDER_Open_tables_backup *open_tables_backup
+);
+
+void spider_sys_close_table(
+  THD *thd,
+  SPIDER_Open_tables_backup *open_tables_backup
+);
+#endif
+
+int spider_sys_index_init(
+  TABLE *table,
+  uint idx,
+  bool sorted
+);
+
+int spider_sys_index_end(
+  TABLE *table
+);
+
+int spider_sys_rnd_init(
+  TABLE *table,
+  bool scan
+);
+
+int spider_sys_rnd_end(
+  TABLE *table
+);
+
+int spider_check_sys_table(
+  TABLE *table,
+  char *table_key
+);
+
+int spider_check_sys_table_with_find_flag(
+  TABLE *table,
+  char *table_key,
+  enum ha_rkey_function find_flag
+);
+
+int spider_check_sys_table_for_update_all_columns(
+  TABLE *table,
+  char *table_key
+);
+
+int spider_get_sys_table_by_idx(
+  TABLE *table,
+  char *table_key,
+  const int idx,
+  const int col_count
+);
+
+int spider_sys_index_next_same(
+  TABLE *table,
+  char *table_key
+);
+
+int spider_sys_index_first(
+  TABLE *table,
+  const int idx
+);
+
+int spider_sys_index_last(
+  TABLE *table,
+  const int idx
+);
+
+int spider_sys_index_next(
+  TABLE *table
+);
+
+void spider_store_xa_pk(
+  TABLE *table,
+  XID *xid
+);
+
+void spider_store_xa_bqual_length(
+  TABLE *table,
+  XID *xid
+);
+
+void spider_store_xa_status(
+  TABLE *table,
+  const char *status
+);
+
+void spider_store_xa_member_pk(
+  TABLE *table,
+  XID *xid,
+  SPIDER_CONN *conn
+);
+
+void spider_store_xa_member_info(
+  TABLE *table,
+  XID *xid,
+  SPIDER_CONN *conn
+);
+
+void spider_store_tables_name(
+  TABLE *table,
+  const char *name,
+  const uint name_length
+);
+
+void spider_store_db_and_table_name(
+  TABLE *table,
+  const char *db_name,
+  const uint db_name_length,
+  const char *table_name,
+  const uint table_name_length
+);
+
+void spider_store_tables_link_idx(
+  TABLE *table,
+  int link_idx
+);
+
+void spider_store_tables_link_idx_str(
+  TABLE *table,
+  const char *link_idx,
+  const uint link_idx_length
+);
+
+void spider_store_tables_static_link_id(
+  TABLE *table,
+  const char *static_link_id,
+  const uint static_link_id_length
+);
+
+void spider_store_tables_priority(
+  TABLE *table,
+  longlong priority
+);
+
+void spider_store_tables_connect_info(
+  TABLE *table,
+  SPIDER_ALTER_TABLE *alter_table,
+  int link_idx
+);
+
+void spider_store_tables_link_status(
+  TABLE *table,
+  long link_status
+);
+
+void spider_store_binlog_pos_failed_link_idx(
+  TABLE *table,
+  int failed_link_idx
+);
+
+void spider_store_binlog_pos_source_link_idx(
+  TABLE *table,
+  int source_link_idx
+);
+
+void spider_store_binlog_pos_binlog_file(
+  TABLE *table,
+  const char *file_name,
+  int file_name_length,
+  const char *position,
+  int position_length,
+  CHARSET_INFO *binlog_pos_cs
+);
+
+void spider_store_binlog_pos_gtid(
+  TABLE *table,
+  const char *gtid,
+  int gtid_length,
+  CHARSET_INFO *binlog_pos_cs
+);
+
+void spider_store_table_sts_info(
+  TABLE *table,
+  ha_statistics *stat
+);
+
+void spider_store_table_crd_info(
+  TABLE *table,
+  uint *seq,
+  longlong *cardinality
+);
+
+int spider_insert_xa(
+  TABLE *table,
+  XID *xid,
+  const char *status
+);
+
+int spider_insert_xa_member(
+  TABLE *table,
+  XID *xid,
+  SPIDER_CONN *conn
+);
+
+int spider_insert_tables(
+  TABLE *table,
+  SPIDER_SHARE *share
+);
+
+int spider_insert_sys_table(
+  TABLE *table
+);
+
+int spider_insert_or_update_table_sts(
+  TABLE *table,
+  const char *name,
+  uint name_length,
+  ha_statistics *stat
+);
+
+int spider_insert_or_update_table_crd(
+  TABLE *table,
+  const char *name,
+  uint name_length,
+  longlong *cardinality,
+  uint number_of_keys
+);
+
+int spider_log_tables_link_failed(
+  TABLE *table,
+  char *name,
+  uint name_length,
+  int link_idx
+);
+
+int spider_log_xa_failed(
+  THD *thd,
+  TABLE *table,
+  XID *xid,
+  SPIDER_CONN *conn,
+  const char *status
+);
+
+int spider_update_xa(
+  TABLE *table,
+  XID *xid,
+  const char *status
+);
+
+int spider_update_tables_name(
+  TABLE *table,
+  const char *from,
+  const char *to,
+  int *old_link_count
+);
+
+int spider_update_tables_priority(
+  TABLE *table,
+  SPIDER_ALTER_TABLE *alter_table,
+  const char *name,
+  int *old_link_count
+);
+
+int spider_update_tables_link_status(
+  TABLE *table,
+  char *name,
+  uint name_length,
+  int link_idx,
+  long link_status
+);
+
+int spider_update_sys_table(
+  TABLE *table
+);
+
+int spider_delete_xa(
+  TABLE *table,
+  XID *xid
+);
+
+int spider_delete_xa_member(
+  TABLE *table,
+  XID *xid
+);
+
+int spider_delete_tables(
+  TABLE *table,
+  const char *name,
+  int *old_link_count
+);
+
+int spider_delete_table_sts(
+  TABLE *table,
+  const char *name,
+  uint name_length
+);
+
+int spider_delete_table_crd(
+  TABLE *table,
+  const char *name,
+  uint name_length
+);
+
+int spider_get_sys_xid(
+  TABLE *table,
+  XID *xid,
+  MEM_ROOT *mem_root
+);
+
+int spider_get_sys_server_info(
+  TABLE *table,
+  SPIDER_SHARE *share,
+  int link_idx,
+  MEM_ROOT *mem_root
+);
+
+int spider_check_sys_xa_status(
+  TABLE *table,
+  const char *status1,
+  const char *status2,
+  const char *status3,
+  const int check_error_num,
+  MEM_ROOT *mem_root
+);
+
+int spider_get_sys_tables(
+  TABLE *table,
+  char **db_name,
+  char **table_name,
+  MEM_ROOT *mem_root
+);
+
+int spider_get_sys_tables_connect_info(
+  TABLE *table,
+  SPIDER_SHARE *share,
+  int link_idx,
+  MEM_ROOT *mem_root
+);
+
+int spider_get_sys_tables_monitoring_binlog_pos_at_failing(
+  TABLE *table,
+  long *monitoring_binlog_pos_at_failing,
+  MEM_ROOT *mem_root
+);
+
+int spider_get_sys_tables_link_status(
+  TABLE *table,
+  SPIDER_SHARE *share,
+  int link_idx,
+  MEM_ROOT *mem_root
+);
+
+int spider_get_sys_tables_link_status(
+  TABLE *table,
+  long *link_status,
+  MEM_ROOT *mem_root
+);
+
+int spider_get_sys_tables_link_idx(
+  TABLE *table,
+  int *link_idx,
+  MEM_ROOT *mem_root
+);
+
+int spider_get_sys_tables_static_link_id(
+  TABLE *table,
+  char **static_link_id,
+  uint *static_link_id_length,
+  MEM_ROOT *mem_root
+);
+
+void spider_get_sys_table_sts_info(
+  TABLE *table,
+  ha_statistics *stat
+);
+
+void spider_get_sys_table_crd_info(
+  TABLE *table,
+  longlong *cardinality,
+  uint number_of_keys
+);
+
+int spider_sys_update_tables_link_status(
+  THD *thd,
+  char *name,
+  uint name_length,
+  int link_idx,
+  long link_status,
+  bool need_lock
+);
+
+int spider_sys_log_tables_link_failed(
+  THD *thd,
+  char *name,
+  uint name_length,
+  int link_idx,
+  bool need_lock
+);
+
+int spider_sys_log_xa_failed(
+  THD *thd,
+  XID *xid,
+  SPIDER_CONN *conn,
+  const char *status,
+  bool need_lock
+);
+
+int spider_get_sys_link_mon_key(
+  TABLE *table,
+  SPIDER_MON_KEY *mon_key,
+  MEM_ROOT *mem_root,
+  int *same
+);
+
+int spider_get_sys_link_mon_server_id(
+  TABLE *table,
+  uint32 *server_id,
+  MEM_ROOT *mem_root
+);
+
+int spider_get_sys_link_mon_connect_info(
+  TABLE *table,
+  SPIDER_SHARE *share,
+  int link_idx,
+  MEM_ROOT *mem_root
+);
+
+int spider_get_link_statuses(
+  TABLE *table,
+  SPIDER_SHARE *share,
+  MEM_ROOT *mem_root
+);
+
+int spider_sys_insert_or_update_table_sts(
+  THD *thd,
+  const char *name,
+  uint name_length,
+  ha_statistics *stat,
+  bool need_lock
+);
+
+int spider_sys_insert_or_update_table_crd(
+  THD *thd,
+  const char *name,
+  uint name_length,
+  longlong *cardinality,
+  uint number_of_keys,
+  bool need_lock
+);
+
+int spider_sys_delete_table_sts(
+  THD *thd,
+  const char *name,
+  uint name_length,
+  bool need_lock
+);
+
+int spider_sys_delete_table_crd(
+  THD *thd,
+  const char *name,
+  uint name_length,
+  bool need_lock
+);
+
+int spider_sys_get_table_sts(
+  THD *thd,
+  const char *name,
+  uint name_length,
+  ha_statistics *stat,
+  bool need_lock
+);
+
+int spider_sys_get_table_crd(
+  THD *thd,
+  const char *name,
+  uint name_length,
+  longlong *cardinality,
+  uint number_of_keys,
+  bool need_lock
+);
+
+int spider_sys_replace(
+  TABLE *table,
+  bool *modified_non_trans_table
+);
+
+#ifdef SPIDER_use_LEX_CSTRING_for_Field_blob_constructor
+TABLE *spider_mk_sys_tmp_table(
+  THD *thd,
+  TABLE *table,
+  TMP_TABLE_PARAM *tmp_tbl_prm,
+  const LEX_CSTRING *field_name,
+  CHARSET_INFO *cs
+);
+#else
+TABLE *spider_mk_sys_tmp_table(
+  THD *thd,
+  TABLE *table,
+  TMP_TABLE_PARAM *tmp_tbl_prm,
+  const char *field_name,
+  CHARSET_INFO *cs
+);
+#endif
+
+void spider_rm_sys_tmp_table(
+  THD *thd,
+  TABLE *tmp_table,
+  TMP_TABLE_PARAM *tmp_tbl_prm
+);
+
+#ifdef SPIDER_use_LEX_CSTRING_for_Field_blob_constructor
+TABLE *spider_mk_sys_tmp_table_for_result(
+  THD *thd,
+  TABLE *table,
+  TMP_TABLE_PARAM *tmp_tbl_prm,
+  const LEX_CSTRING *field_name1,
+  const LEX_CSTRING *field_name2,
+  const LEX_CSTRING *field_name3,
+  CHARSET_INFO *cs
+);
+#else
+TABLE *spider_mk_sys_tmp_table_for_result(
+  THD *thd,
+  TABLE *table,
+  TMP_TABLE_PARAM *tmp_tbl_prm,
+  const char *field_name1,
+  const char *field_name2,
+  const char *field_name3,
+  CHARSET_INFO *cs
+);
+#endif
+
+void spider_rm_sys_tmp_table_for_result(
+  THD *thd,
+  TABLE *tmp_table,
+  TMP_TABLE_PARAM *tmp_tbl_prm
+);
+
+TABLE *spider_find_temporary_table(
+  THD *thd,
+  TABLE_LIST *table_list
+);
diff --git a/storage/spider/spd_table.cc b/storage/spider/spd_table.cc
new file mode 100644
index 00000000..8efa5d25
--- /dev/null
+++ b/storage/spider/spd_table.cc
@@ -0,0 +1,10811 @@
+/* Copyright (C) 2008-2020 Kentoku Shiba
+   Copyright (C) 2019-2020 MariaDB corp
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+#define MYSQL_SERVER 1
+#include <my_global.h>
+#include "mysql_version.h"
+#include "spd_environ.h"
+#if MYSQL_VERSION_ID < 50500
+#include "mysql_priv.h"
+#include <mysql/plugin.h>
+#else
+#include "sql_priv.h"
+#include "probes_mysql.h"
+#include "my_getopt.h"
+#include "sql_class.h"
+#include "sql_partition.h"
+#include "sql_servers.h"
+#include "sql_select.h"
+#include "tztime.h"
+#include "sql_parse.h"
+#endif
+#include "spd_err.h"
+#include "spd_param.h"
+#include "spd_db_include.h"
+#include "spd_include.h"
+#include "spd_sys_table.h"
+#include "ha_spider.h"
+#include "spd_trx.h"
+#include "spd_db_conn.h"
+#include "spd_table.h"
+#include "spd_conn.h"
+#include "spd_ping_table.h"
+#include "spd_direct_sql.h"
+#include "spd_malloc.h"
+#include "spd_group_by_handler.h"
+#include "spd_init_query.h"
+
+/* Background thread management */
+#ifdef SPIDER_HAS_NEXT_THREAD_ID
+#define SPIDER_set_next_thread_id(A)
+MYSQL_THD create_thd();
+void destroy_thd(MYSQL_THD thd);
+#else
+ulong *spd_db_att_thread_id;
+inline void SPIDER_set_next_thread_id(THD *A)
+{
+  pthread_mutex_lock(&LOCK_thread_count);
+  A->thread_id = (*spd_db_att_thread_id)++;
+  pthread_mutex_unlock(&LOCK_thread_count);
+}
+MYSQL_THD create_thd()
+{
+  THD *thd = SPIDER_new_THD(next_thread_id());
+  if (thd)
+  {
+    thd->thread_stack = (char*) &thd;
+    thd->store_globals();
+    thd->set_command(COM_DAEMON);
+    thd->security_ctx->host_or_ip = "";
+  }
+  return thd;
+}
+void destroy_thd(MYSQL_THD thd)
+{
+  delete thd;
+}
+#endif
+inline MYSQL_THD spider_create_sys_thd(SPIDER_THREAD *thread)
+{
+  THD *thd = create_thd();
+  if (thd)
+  {
+    SPIDER_set_next_thread_id(thd);
+    thd->mysys_var->current_cond = &thread->cond;
+    thd->mysys_var->current_mutex = &thread->mutex;
+  }
+  return thd;
+}
+inline void spider_destroy_sys_thd(MYSQL_THD thd)
+{
+  destroy_thd(thd);
+}
+inline MYSQL_THD spider_create_thd()
+{
+  THD *thd;
+  my_thread_init();
+  if (!(thd = new THD(next_thread_id())))
+    my_thread_end();
+  else
+  {
+#ifdef HAVE_PSI_INTERFACE
+    mysql_thread_set_psi_id(thd->thread_id);
+#endif
+    thd->thread_stack = (char *) &thd;
+    thd->store_globals();
+  }
+  return thd;
+}
+inline void spider_destroy_thd(MYSQL_THD thd)
+{
+  delete thd;
+}
+
+#ifdef SPIDER_XID_USES_xid_cache_iterate
+#else
+#ifdef XID_CACHE_IS_SPLITTED
+uint *spd_db_att_xid_cache_split_num;
+#endif
+pthread_mutex_t *spd_db_att_LOCK_xid_cache;
+HASH *spd_db_att_xid_cache;
+#endif
+struct charset_info_st *spd_charset_utf8mb3_bin;
+const char **spd_defaults_extra_file;
+const char **spd_defaults_file;
+const char **spd_mysqld_unix_port;
+uint *spd_mysqld_port;
+bool volatile *spd_abort_loop;
+Time_zone *spd_tz_system;
+static int *spd_mysqld_server_started;
+static pthread_mutex_t *spd_LOCK_server_started;
+static pthread_cond_t *spd_COND_server_started;
+extern long spider_conn_mutex_id;
+handlerton *spider_hton_ptr;
+SPIDER_DBTON spider_dbton[SPIDER_DBTON_SIZE];
+extern SPIDER_DBTON spider_dbton_mysql;
+extern SPIDER_DBTON spider_dbton_mariadb;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+extern SPIDER_DBTON spider_dbton_handlersocket;
+#endif
+#ifdef HAVE_ORACLE_OCI
+extern SPIDER_DBTON spider_dbton_oracle;
+#endif
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+SPIDER_THREAD *spider_table_sts_threads;
+SPIDER_THREAD *spider_table_crd_threads;
+#endif
+
+#ifdef HAVE_PSI_INTERFACE
+PSI_mutex_key spd_key_mutex_tbl;
+PSI_mutex_key spd_key_mutex_init_error_tbl;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+PSI_mutex_key spd_key_mutex_wide_share;
+#endif
+PSI_mutex_key spd_key_mutex_lgtm_tblhnd_share;
+PSI_mutex_key spd_key_mutex_conn;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+PSI_mutex_key spd_key_mutex_hs_r_conn;
+PSI_mutex_key spd_key_mutex_hs_w_conn;
+#endif
+PSI_mutex_key spd_key_mutex_open_conn;
+PSI_mutex_key spd_key_mutex_allocated_thds;
+PSI_mutex_key spd_key_mutex_mon_table_cache;
+PSI_mutex_key spd_key_mutex_udf_table_mon;
+PSI_mutex_key spd_key_mutex_mta_conn;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+PSI_mutex_key spd_key_mutex_bg_conn_chain;
+PSI_mutex_key spd_key_mutex_bg_conn_sync;
+PSI_mutex_key spd_key_mutex_bg_conn;
+PSI_mutex_key spd_key_mutex_bg_job_stack;
+PSI_mutex_key spd_key_mutex_bg_mon;
+PSI_mutex_key spd_key_mutex_bg_direct_sql;
+#endif
+PSI_mutex_key spd_key_mutex_mon_list_caller;
+PSI_mutex_key spd_key_mutex_mon_list_receptor;
+PSI_mutex_key spd_key_mutex_mon_list_monitor;
+PSI_mutex_key spd_key_mutex_mon_list_update_status;
+PSI_mutex_key spd_key_mutex_share;
+PSI_mutex_key spd_key_mutex_share_sts;
+PSI_mutex_key spd_key_mutex_share_crd;
+PSI_mutex_key spd_key_mutex_share_auto_increment;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+PSI_mutex_key spd_key_mutex_wide_share_sts;
+PSI_mutex_key spd_key_mutex_wide_share_crd;
+PSI_mutex_key spd_key_mutex_pt_handler;
+#endif
+PSI_mutex_key spd_key_mutex_udf_table;
+PSI_mutex_key spd_key_mutex_mem_calc;
+PSI_mutex_key spd_key_thread_id;
+PSI_mutex_key spd_key_conn_id;
+PSI_mutex_key spd_key_mutex_ipport_count;
+PSI_mutex_key spd_key_mutex_conn_i;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+PSI_mutex_key spd_key_mutex_bg_stss;
+PSI_mutex_key spd_key_mutex_bg_crds;
+#endif
+PSI_mutex_key spd_key_mutex_conn_loop_check;
+
+static PSI_mutex_info all_spider_mutexes[]=
+{
+  { &spd_key_mutex_tbl, "tbl", PSI_FLAG_GLOBAL},
+  { &spd_key_mutex_init_error_tbl, "init_error_tbl", PSI_FLAG_GLOBAL},
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  { &spd_key_mutex_wide_share, "wide_share", PSI_FLAG_GLOBAL},
+#endif
+  { &spd_key_mutex_lgtm_tblhnd_share, "lgtm_tblhnd_share", PSI_FLAG_GLOBAL},
+  { &spd_key_mutex_conn, "conn", PSI_FLAG_GLOBAL},
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  { &spd_key_mutex_hs_r_conn, "hs_r_conn", PSI_FLAG_GLOBAL},
+  { &spd_key_mutex_hs_w_conn, "hs_w_conn", PSI_FLAG_GLOBAL},
+#endif
+  { &spd_key_mutex_open_conn, "open_conn", PSI_FLAG_GLOBAL},
+  { &spd_key_mutex_allocated_thds, "allocated_thds", PSI_FLAG_GLOBAL},
+  { &spd_key_mutex_mon_table_cache, "mon_table_cache", PSI_FLAG_GLOBAL},
+  { &spd_key_mutex_udf_table_mon, "udf_table_mon", PSI_FLAG_GLOBAL},
+  { &spd_key_mutex_mem_calc, "mem_calc", PSI_FLAG_GLOBAL},
+  { &spd_key_thread_id, "thread_id", PSI_FLAG_GLOBAL},
+  { &spd_key_conn_id, "conn_id", PSI_FLAG_GLOBAL},
+  { &spd_key_mutex_ipport_count, "ipport_count", PSI_FLAG_GLOBAL},
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  { &spd_key_mutex_bg_stss, "bg_stss", PSI_FLAG_GLOBAL},
+  { &spd_key_mutex_bg_crds, "bg_crds", PSI_FLAG_GLOBAL},
+#endif
+  { &spd_key_mutex_conn_i, "conn_i", 0},
+  { &spd_key_mutex_mta_conn, "mta_conn", 0},
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  { &spd_key_mutex_bg_conn_chain, "bg_conn_chain", 0},
+  { &spd_key_mutex_bg_conn_sync, "bg_conn_sync", 0},
+  { &spd_key_mutex_bg_conn, "bg_conn", 0},
+  { &spd_key_mutex_bg_job_stack, "bg_job_stack", 0},
+  { &spd_key_mutex_bg_mon, "bg_mon", 0},
+  { &spd_key_mutex_bg_direct_sql, "bg_direct_sql", 0},
+#endif
+  { &spd_key_mutex_mon_list_caller, "mon_list_caller", 0},
+  { &spd_key_mutex_mon_list_receptor, "mon_list_receptor", 0},
+  { &spd_key_mutex_mon_list_monitor, "mon_list_monitor", 0},
+  { &spd_key_mutex_mon_list_update_status, "mon_list_update_status", 0},
+  { &spd_key_mutex_share, "share", 0},
+  { &spd_key_mutex_share_sts, "share_sts", 0},
+  { &spd_key_mutex_share_crd, "share_crd", 0},
+  { &spd_key_mutex_share_auto_increment, "share_auto_increment", 0},
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  { &spd_key_mutex_wide_share_sts, "wide_share_sts", 0},
+  { &spd_key_mutex_wide_share_crd, "wide_share_crd", 0},
+  { &spd_key_mutex_pt_handler, "pt_handler", 0},
+#endif
+  { &spd_key_mutex_udf_table, "udf_table", 0},
+  { &spd_key_mutex_conn_loop_check, "conn_loop_check", 0},
+};
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+PSI_cond_key spd_key_cond_bg_conn_sync;
+PSI_cond_key spd_key_cond_bg_conn;
+PSI_cond_key spd_key_cond_bg_sts;
+PSI_cond_key spd_key_cond_bg_sts_sync;
+PSI_cond_key spd_key_cond_bg_crd;
+PSI_cond_key spd_key_cond_bg_crd_sync;
+PSI_cond_key spd_key_cond_bg_mon;
+PSI_cond_key spd_key_cond_bg_mon_sleep;
+PSI_cond_key spd_key_cond_bg_direct_sql;
+#endif
+PSI_cond_key spd_key_cond_udf_table_mon;
+PSI_cond_key spd_key_cond_conn_i;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+PSI_cond_key spd_key_cond_bg_stss;
+PSI_cond_key spd_key_cond_bg_sts_syncs;
+PSI_cond_key spd_key_cond_bg_crds;
+PSI_cond_key spd_key_cond_bg_crd_syncs;
+#endif
+
+static PSI_cond_info all_spider_conds[] = {
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  {&spd_key_cond_bg_conn_sync, "bg_conn_sync", 0},
+  {&spd_key_cond_bg_conn, "bg_conn", 0},
+  {&spd_key_cond_bg_sts, "bg_sts", 0},
+  {&spd_key_cond_bg_sts_sync, "bg_sts_sync", 0},
+  {&spd_key_cond_bg_crd, "bg_crd", 0},
+  {&spd_key_cond_bg_crd_sync, "bg_crd_sync", 0},
+  {&spd_key_cond_bg_mon, "bg_mon", 0},
+  {&spd_key_cond_bg_mon_sleep, "bg_mon_sleep", 0},
+  {&spd_key_cond_bg_direct_sql, "bg_direct_sql", 0},
+#endif
+  {&spd_key_cond_udf_table_mon, "udf_table_mon", 0},
+  {&spd_key_cond_conn_i, "conn_i", 0},
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  {&spd_key_cond_bg_stss, "bg_stss", 0},
+  {&spd_key_cond_bg_sts_syncs, "bg_sts_syncs", 0},
+  {&spd_key_cond_bg_crds, "bg_crds", 0},
+  {&spd_key_cond_bg_crd_syncs, "bg_crd_syncs", 0},
+#endif
+};
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+PSI_thread_key spd_key_thd_bg;
+PSI_thread_key spd_key_thd_bg_sts;
+PSI_thread_key spd_key_thd_bg_crd;
+PSI_thread_key spd_key_thd_bg_mon;
+PSI_thread_key spd_key_thd_bg_stss;
+PSI_thread_key spd_key_thd_bg_crds;
+#endif
+
+static PSI_thread_info all_spider_threads[] = {
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  {&spd_key_thd_bg, "bg", 0},
+  {&spd_key_thd_bg_sts, "bg_sts", 0},
+  {&spd_key_thd_bg_crd, "bg_crd", 0},
+  {&spd_key_thd_bg_mon, "bg_mon", 0},
+  {&spd_key_thd_bg_stss, "bg_stss", 0},
+  {&spd_key_thd_bg_crds, "bg_crds", 0},
+#endif
+};
+#endif
+
+extern HASH spider_open_connections;
+extern HASH spider_ipport_conns;
+extern uint spider_open_connections_id;
+extern const char *spider_open_connections_func_name;
+extern const char *spider_open_connections_file_name;
+extern ulong spider_open_connections_line_no;
+extern pthread_mutex_t spider_conn_mutex;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+extern HASH spider_hs_r_conn_hash;
+extern uint spider_hs_r_conn_hash_id;
+extern const char *spider_hs_r_conn_hash_func_name;
+extern const char *spider_hs_r_conn_hash_file_name;
+extern ulong spider_hs_r_conn_hash_line_no;
+extern pthread_mutex_t spider_hs_r_conn_mutex;
+extern HASH spider_hs_w_conn_hash;
+extern uint spider_hs_w_conn_hash_id;
+extern const char *spider_hs_w_conn_hash_func_name;
+extern const char *spider_hs_w_conn_hash_file_name;
+extern ulong spider_hs_w_conn_hash_line_no;
+extern pthread_mutex_t spider_hs_w_conn_mutex;
+#endif
+extern HASH *spider_udf_table_mon_list_hash;
+extern uint spider_udf_table_mon_list_hash_id;
+extern const char *spider_udf_table_mon_list_hash_func_name;
+extern const char *spider_udf_table_mon_list_hash_file_name;
+extern ulong spider_udf_table_mon_list_hash_line_no;
+extern pthread_mutex_t *spider_udf_table_mon_mutexes;
+extern pthread_cond_t *spider_udf_table_mon_conds;
+extern pthread_mutex_t spider_open_conn_mutex;
+extern pthread_mutex_t spider_mon_table_cache_mutex;
+extern DYNAMIC_ARRAY spider_mon_table_cache;
+extern uint spider_mon_table_cache_id;
+extern const char *spider_mon_table_cache_func_name;
+extern const char *spider_mon_table_cache_file_name;
+extern ulong spider_mon_table_cache_line_no;
+
+HASH spider_open_tables;
+uint spider_open_tables_id;
+const char *spider_open_tables_func_name;
+const char *spider_open_tables_file_name;
+ulong spider_open_tables_line_no;
+pthread_mutex_t spider_tbl_mutex;
+HASH spider_init_error_tables;
+uint spider_init_error_tables_id;
+const char *spider_init_error_tables_func_name;
+const char *spider_init_error_tables_file_name;
+ulong spider_init_error_tables_line_no;
+pthread_mutex_t spider_init_error_tbl_mutex;
+
+extern pthread_mutex_t spider_thread_id_mutex;
+extern pthread_mutex_t spider_conn_id_mutex;
+extern pthread_mutex_t spider_ipport_conn_mutex;
+
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+HASH spider_open_wide_share;
+uint spider_open_wide_share_id;
+const char *spider_open_wide_share_func_name;
+const char *spider_open_wide_share_file_name;
+ulong spider_open_wide_share_line_no;
+pthread_mutex_t spider_wide_share_mutex;
+#endif
+
+HASH spider_lgtm_tblhnd_share_hash;
+uint spider_lgtm_tblhnd_share_hash_id;
+const char *spider_lgtm_tblhnd_share_hash_func_name;
+const char *spider_lgtm_tblhnd_share_hash_file_name;
+ulong spider_lgtm_tblhnd_share_hash_line_no;
+pthread_mutex_t spider_lgtm_tblhnd_share_mutex;
+
+HASH spider_allocated_thds;
+uint spider_allocated_thds_id;
+const char *spider_allocated_thds_func_name;
+const char *spider_allocated_thds_file_name;
+ulong spider_allocated_thds_line_no;
+pthread_mutex_t spider_allocated_thds_mutex;
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+pthread_attr_t spider_pt_attr;
+#endif
+
+extern pthread_mutex_t spider_mem_calc_mutex;
+
+extern const char *spider_alloc_func_name[SPIDER_MEM_CALC_LIST_NUM];
+extern const char *spider_alloc_file_name[SPIDER_MEM_CALC_LIST_NUM];
+extern ulong      spider_alloc_line_no[SPIDER_MEM_CALC_LIST_NUM];
+extern ulonglong  spider_total_alloc_mem[SPIDER_MEM_CALC_LIST_NUM];
+extern longlong   spider_current_alloc_mem[SPIDER_MEM_CALC_LIST_NUM];
+extern ulonglong  spider_alloc_mem_count[SPIDER_MEM_CALC_LIST_NUM];
+extern ulonglong  spider_free_mem_count[SPIDER_MEM_CALC_LIST_NUM];
+
+static char spider_wild_many = '%', spider_wild_one = '_',
+  spider_wild_prefix='\\';
+
+static char spider_unique_id_buf[1 + 12 + 1 + (16 * 2) + 1 + 1];
+LEX_CSTRING spider_unique_id;
+
+// for spider_open_tables
+uchar *spider_tbl_get_key(
+  SPIDER_SHARE *share,
+  size_t *length,
+  my_bool not_used __attribute__ ((unused))
+) {
+  DBUG_ENTER("spider_tbl_get_key");
+  *length = share->table_name_length;
+  DBUG_RETURN((uchar*) share->table_name);
+}
+
+uchar *spider_wide_share_get_key(
+  SPIDER_WIDE_SHARE *share,
+  size_t *length,
+  my_bool not_used __attribute__ ((unused))
+) {
+  DBUG_ENTER("spider_wide_share_get_key");
+  *length = share->table_name_length;
+  DBUG_RETURN((uchar*) share->table_name);
+}
+
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+uchar *spider_pt_handler_share_get_key(
+  SPIDER_PARTITION_HANDLER_SHARE *share,
+  size_t *length,
+  my_bool not_used __attribute__ ((unused))
+) {
+  DBUG_ENTER("spider_pt_handler_share_get_key");
+  *length = sizeof(ha_spider *);
+  DBUG_RETURN((uchar*) share->owner);
+}
+#endif
+
+uchar *spider_lgtm_tblhnd_share_hash_get_key(
+  SPIDER_LGTM_TBLHND_SHARE *share,
+  size_t *length,
+  my_bool not_used __attribute__ ((unused))
+) {
+  DBUG_ENTER("spider_lgtm_tblhnd_share_hash_get_key");
+  *length = share->table_name_length;
+  DBUG_RETURN((uchar*) share->table_name);
+}
+
+uchar *spider_link_get_key(
+  SPIDER_LINK_FOR_HASH *link_for_hash,
+  size_t *length,
+  my_bool not_used __attribute__ ((unused))
+) {
+  DBUG_ENTER("spider_link_get_key");
+  *length = link_for_hash->db_table_str->length();
+  DBUG_RETURN((uchar*) link_for_hash->db_table_str->ptr());
+}
+
+uchar *spider_ha_get_key(
+  ha_spider *spider,
+  size_t *length,
+  my_bool not_used __attribute__ ((unused))
+) {
+  DBUG_ENTER("spider_ha_get_key");
+  *length = spider->share->table_name_length;
+  DBUG_RETURN((uchar*) spider->share->table_name);
+}
+
+uchar *spider_udf_tbl_mon_list_key(
+  SPIDER_TABLE_MON_LIST *table_mon_list,
+  size_t *length,
+  my_bool not_used __attribute__ ((unused))
+) {
+  DBUG_ENTER("spider_udf_tbl_mon_list_key");
+  DBUG_PRINT("info",("spider hash key=%s", table_mon_list->key));
+  DBUG_PRINT("info",("spider hash key length=%u", table_mon_list->key_length));
+  *length = table_mon_list->key_length;
+  DBUG_RETURN((uchar*) table_mon_list->key);
+}
+
+uchar *spider_allocated_thds_get_key(
+  THD *thd,
+  size_t *length,
+  my_bool not_used __attribute__ ((unused))
+) {
+  DBUG_ENTER("spider_allocated_thds_get_key");
+  *length = sizeof(THD *);
+  DBUG_RETURN((uchar*) thd);
+}
+
+#ifdef HAVE_PSI_INTERFACE
+static void init_spider_psi_keys()
+{
+  DBUG_ENTER("init_spider_psi_keys");
+  if (PSI_server == NULL)
+    DBUG_VOID_RETURN;
+
+  PSI_server->register_mutex("spider", all_spider_mutexes,
+    array_elements(all_spider_mutexes));
+  PSI_server->register_cond("spider", all_spider_conds,
+    array_elements(all_spider_conds));
+  PSI_server->register_thread("spider", all_spider_threads,
+    array_elements(all_spider_threads));
+  DBUG_VOID_RETURN;
+}
+#endif
+
+int spider_get_server(
+  SPIDER_SHARE *share,
+  int link_idx
+) {
+  MEM_ROOT mem_root;
+  int error_num, length;
+  FOREIGN_SERVER *server, server_buf;
+  DBUG_ENTER("spider_get_server");
+  SPD_INIT_ALLOC_ROOT(&mem_root, 128, 0, MYF(MY_WME));
+
+  if (!(server
+       = get_server_by_name(&mem_root, share->server_names[link_idx],
+         &server_buf)))
+  {
+    error_num = ER_FOREIGN_SERVER_DOESNT_EXIST;
+    goto error;
+  }
+
+  if (!share->tgt_wrappers[link_idx] && server->scheme)
+  {
+    share->tgt_wrappers_lengths[link_idx] = strlen(server->scheme);
+    if (!(share->tgt_wrappers[link_idx] =
+      spider_create_string(server->scheme,
+      share->tgt_wrappers_lengths[link_idx])))
+    {
+      error_num = HA_ERR_OUT_OF_MEM;
+      goto error;
+    }
+    DBUG_PRINT("info",("spider tgt_wrappers=%s",
+      share->tgt_wrappers[link_idx]));
+  }
+
+  if (!share->tgt_hosts[link_idx] && server->host)
+  {
+    share->tgt_hosts_lengths[link_idx] = strlen(server->host);
+    if (!(share->tgt_hosts[link_idx] =
+      spider_create_string(server->host, share->tgt_hosts_lengths[link_idx])))
+    {
+      error_num = HA_ERR_OUT_OF_MEM;
+      goto error;
+    }
+    DBUG_PRINT("info",("spider tgt_hosts=%s", share->tgt_hosts[link_idx]));
+  }
+
+  if (share->tgt_ports[link_idx] == -1)
+  {
+    share->tgt_ports[link_idx] = server->port;
+    DBUG_PRINT("info",("spider tgt_ports=%ld", share->tgt_ports[link_idx]));
+  }
+
+  if (!share->tgt_sockets[link_idx] && server->socket)
+  {
+    share->tgt_sockets_lengths[link_idx] = strlen(server->socket);
+    if (!(share->tgt_sockets[link_idx] =
+      spider_create_string(server->socket,
+      share->tgt_sockets_lengths[link_idx])))
+    {
+      error_num = HA_ERR_OUT_OF_MEM;
+      goto error;
+    }
+    DBUG_PRINT("info",("spider tgt_sockets=%s", share->tgt_sockets[link_idx]));
+  }
+
+  if (!share->tgt_dbs[link_idx] && server->db && (length = strlen(server->db)))
+  {
+    share->tgt_dbs_lengths[link_idx] = length;
+    if (!(share->tgt_dbs[link_idx] =
+      spider_create_string(server->db, length)))
+    {
+      error_num = HA_ERR_OUT_OF_MEM;
+      goto error;
+    }
+    DBUG_PRINT("info",("spider tgt_dbs=%s", share->tgt_dbs[link_idx]));
+  }
+
+  if (!share->tgt_usernames[link_idx] && server->username)
+  {
+    share->tgt_usernames_lengths[link_idx] = strlen(server->username);
+    if (!(share->tgt_usernames[link_idx] =
+      spider_create_string(server->username,
+      share->tgt_usernames_lengths[link_idx])))
+    {
+      error_num = HA_ERR_OUT_OF_MEM;
+      goto error;
+    }
+    DBUG_PRINT("info",("spider tgt_usernames=%s",
+      share->tgt_usernames[link_idx]));
+  }
+
+  if (!share->tgt_passwords[link_idx] && server->password)
+  {
+    share->tgt_passwords_lengths[link_idx] = strlen(server->password);
+    if (!(share->tgt_passwords[link_idx] =
+      spider_create_string(server->password,
+      share->tgt_passwords_lengths[link_idx])))
+    {
+      error_num = HA_ERR_OUT_OF_MEM;
+      goto error;
+    }
+    DBUG_PRINT("info",("spider tgt_passwords=%s",
+      share->tgt_passwords[link_idx]));
+  }
+
+  free_root(&mem_root, MYF(0));
+  DBUG_RETURN(0);
+
+error:
+  free_root(&mem_root, MYF(0));
+  my_error(error_num, MYF(0), share->server_names[link_idx]);
+  DBUG_RETURN(error_num);
+}
+
+int spider_free_share_alloc(
+  SPIDER_SHARE *share
+) {
+  int roop_count;
+  DBUG_ENTER("spider_free_share_alloc");
+  for (roop_count = SPIDER_DBTON_SIZE - 1; roop_count >= 0; roop_count--)
+  {
+    if (share->dbton_share[roop_count])
+    {
+      delete share->dbton_share[roop_count];
+      share->dbton_share[roop_count] = NULL;
+    }
+  }
+  if (share->server_names)
+  {
+    for (roop_count = 0; roop_count < (int) share->server_names_length;
+      roop_count++)
+    {
+      if (share->server_names[roop_count])
+        spider_free(spider_current_trx, share->server_names[roop_count],
+          MYF(0));
+    }
+    spider_free(spider_current_trx, share->server_names, MYF(0));
+  }
+  if (share->tgt_table_names)
+  {
+    for (roop_count = 0; roop_count < (int) share->tgt_table_names_length;
+      roop_count++)
+    {
+      if (share->tgt_table_names[roop_count])
+        spider_free(spider_current_trx, share->tgt_table_names[roop_count],
+          MYF(0));
+    }
+    spider_free(spider_current_trx, share->tgt_table_names, MYF(0));
+  }
+  if (share->tgt_dbs)
+  {
+    for (roop_count = 0; roop_count < (int) share->tgt_dbs_length;
+      roop_count++)
+    {
+      if (share->tgt_dbs[roop_count])
+        spider_free(spider_current_trx, share->tgt_dbs[roop_count], MYF(0));
+    }
+    spider_free(spider_current_trx, share->tgt_dbs, MYF(0));
+  }
+  if (share->tgt_hosts)
+  {
+    for (roop_count = 0; roop_count < (int) share->tgt_hosts_length;
+      roop_count++)
+    {
+      if (share->tgt_hosts[roop_count])
+        spider_free(spider_current_trx, share->tgt_hosts[roop_count], MYF(0));
+    }
+    spider_free(spider_current_trx, share->tgt_hosts, MYF(0));
+  }
+  if (share->tgt_usernames)
+  {
+    for (roop_count = 0; roop_count < (int) share->tgt_usernames_length;
+      roop_count++)
+    {
+      if (share->tgt_usernames[roop_count])
+        spider_free(spider_current_trx, share->tgt_usernames[roop_count],
+          MYF(0));
+    }
+    spider_free(spider_current_trx, share->tgt_usernames, MYF(0));
+  }
+  if (share->tgt_passwords)
+  {
+    for (roop_count = 0; roop_count < (int) share->tgt_passwords_length;
+      roop_count++)
+    {
+      if (share->tgt_passwords[roop_count])
+        spider_free(spider_current_trx, share->tgt_passwords[roop_count],
+          MYF(0));
+    }
+    spider_free(spider_current_trx, share->tgt_passwords, MYF(0));
+  }
+  if (share->tgt_sockets)
+  {
+    for (roop_count = 0; roop_count < (int) share->tgt_sockets_length;
+      roop_count++)
+    {
+      if (share->tgt_sockets[roop_count])
+        spider_free(spider_current_trx, share->tgt_sockets[roop_count],
+          MYF(0));
+    }
+    spider_free(spider_current_trx, share->tgt_sockets, MYF(0));
+  }
+  if (share->tgt_wrappers)
+  {
+    for (roop_count = 0; roop_count < (int) share->tgt_wrappers_length;
+      roop_count++)
+    {
+      if (share->tgt_wrappers[roop_count])
+        spider_free(spider_current_trx, share->tgt_wrappers[roop_count],
+          MYF(0));
+    }
+    spider_free(spider_current_trx, share->tgt_wrappers, MYF(0));
+  }
+  if (share->tgt_ssl_cas)
+  {
+    for (roop_count = 0; roop_count < (int) share->tgt_ssl_cas_length;
+      roop_count++)
+    {
+      if (share->tgt_ssl_cas[roop_count])
+        spider_free(spider_current_trx, share->tgt_ssl_cas[roop_count],
+          MYF(0));
+    }
+    spider_free(spider_current_trx, share->tgt_ssl_cas, MYF(0));
+  }
+  if (share->tgt_ssl_capaths)
+  {
+    for (roop_count = 0; roop_count < (int) share->tgt_ssl_capaths_length;
+      roop_count++)
+    {
+      if (share->tgt_ssl_capaths[roop_count])
+        spider_free(spider_current_trx, share->tgt_ssl_capaths[roop_count],
+          MYF(0));
+    }
+    spider_free(spider_current_trx, share->tgt_ssl_capaths, MYF(0));
+  }
+  if (share->tgt_ssl_certs)
+  {
+    for (roop_count = 0; roop_count < (int) share->tgt_ssl_certs_length;
+      roop_count++)
+    {
+      if (share->tgt_ssl_certs[roop_count])
+        spider_free(spider_current_trx, share->tgt_ssl_certs[roop_count],
+          MYF(0));
+    }
+    spider_free(spider_current_trx, share->tgt_ssl_certs, MYF(0));
+  }
+  if (share->tgt_ssl_ciphers)
+  {
+    for (roop_count = 0; roop_count < (int) share->tgt_ssl_ciphers_length;
+      roop_count++)
+    {
+      if (share->tgt_ssl_ciphers[roop_count])
+        spider_free(spider_current_trx, share->tgt_ssl_ciphers[roop_count],
+          MYF(0));
+    }
+    spider_free(spider_current_trx, share->tgt_ssl_ciphers, MYF(0));
+  }
+  if (share->tgt_ssl_keys)
+  {
+    for (roop_count = 0; roop_count < (int) share->tgt_ssl_keys_length;
+      roop_count++)
+    {
+      if (share->tgt_ssl_keys[roop_count])
+        spider_free(spider_current_trx, share->tgt_ssl_keys[roop_count],
+          MYF(0));
+    }
+    spider_free(spider_current_trx, share->tgt_ssl_keys, MYF(0));
+  }
+  if (share->tgt_default_files)
+  {
+    for (roop_count = 0; roop_count < (int) share->tgt_default_files_length;
+      roop_count++)
+    {
+      if (share->tgt_default_files[roop_count])
+        spider_free(spider_current_trx, share->tgt_default_files[roop_count],
+          MYF(0));
+    }
+    spider_free(spider_current_trx, share->tgt_default_files, MYF(0));
+  }
+  if (share->tgt_default_groups)
+  {
+    for (roop_count = 0; roop_count < (int) share->tgt_default_groups_length;
+      roop_count++)
+    {
+      if (share->tgt_default_groups[roop_count])
+        spider_free(spider_current_trx, share->tgt_default_groups[roop_count],
+          MYF(0));
+    }
+    spider_free(spider_current_trx, share->tgt_default_groups, MYF(0));
+  }
+  if (share->tgt_dsns)
+  {
+    for (roop_count = 0; roop_count < (int) share->tgt_dsns_length;
+      roop_count++)
+    {
+      if (share->tgt_dsns[roop_count])
+        spider_free(spider_current_trx, share->tgt_dsns[roop_count],
+          MYF(0));
+    }
+    spider_free(spider_current_trx, share->tgt_dsns, MYF(0));
+  }
+  if (share->tgt_pk_names)
+  {
+    for (roop_count = 0; roop_count < (int) share->tgt_pk_names_length;
+      roop_count++)
+    {
+      if (share->tgt_pk_names[roop_count])
+        spider_free(spider_current_trx, share->tgt_pk_names[roop_count],
+          MYF(0));
+    }
+    spider_free(spider_current_trx, share->tgt_pk_names, MYF(0));
+  }
+  if (share->tgt_sequence_names)
+  {
+    for (roop_count = 0; roop_count < (int) share->tgt_sequence_names_length;
+      roop_count++)
+    {
+      if (share->tgt_sequence_names[roop_count])
+        spider_free(spider_current_trx, share->tgt_sequence_names[roop_count],
+          MYF(0));
+    }
+    spider_free(spider_current_trx, share->tgt_sequence_names, MYF(0));
+  }
+  if (share->static_link_ids)
+  {
+    for (roop_count = 0; roop_count < (int) share->static_link_ids_length;
+      roop_count++)
+    {
+      if (share->static_link_ids[roop_count])
+        spider_free(spider_current_trx, share->static_link_ids[roop_count],
+          MYF(0));
+    }
+    spider_free(spider_current_trx, share->static_link_ids, MYF(0));
+  }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (share->hs_read_socks)
+  {
+    for (roop_count = 0; roop_count < (int) share->hs_read_socks_length;
+      roop_count++)
+    {
+      if (share->hs_read_socks[roop_count])
+        spider_free(spider_current_trx, share->hs_read_socks[roop_count],
+          MYF(0));
+    }
+    spider_free(spider_current_trx, share->hs_read_socks, MYF(0));
+  }
+  if (share->hs_write_socks)
+  {
+    for (roop_count = 0; roop_count < (int) share->hs_write_socks_length;
+      roop_count++)
+    {
+      if (share->hs_write_socks[roop_count])
+        spider_free(spider_current_trx, share->hs_write_socks[roop_count],
+          MYF(0));
+    }
+    spider_free(spider_current_trx, share->hs_write_socks, MYF(0));
+  }
+#endif
+  if (share->bka_engine)
+    spider_free(spider_current_trx, share->bka_engine, MYF(0));
+  if (share->conn_keys)
+    spider_free(spider_current_trx, share->conn_keys, MYF(0));
+  if (share->tgt_ports)
+    spider_free(spider_current_trx, share->tgt_ports, MYF(0));
+  if (share->tgt_ssl_vscs)
+    spider_free(spider_current_trx, share->tgt_ssl_vscs, MYF(0));
+  if (share->link_statuses)
+    spider_free(spider_current_trx, share->link_statuses, MYF(0));
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  if (share->monitoring_bg_flag)
+    spider_free(spider_current_trx, share->monitoring_bg_flag, MYF(0));
+  if (share->monitoring_bg_kind)
+    spider_free(spider_current_trx, share->monitoring_bg_kind, MYF(0));
+#endif
+  if (share->monitoring_binlog_pos_at_failing)
+    spider_free(spider_current_trx, share->monitoring_binlog_pos_at_failing, MYF(0));
+  if (share->monitoring_flag)
+    spider_free(spider_current_trx, share->monitoring_flag, MYF(0));
+  if (share->monitoring_kind)
+    spider_free(spider_current_trx, share->monitoring_kind, MYF(0));
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (share->use_hs_reads)
+    spider_free(spider_current_trx, share->use_hs_reads, MYF(0));
+  if (share->use_hs_writes)
+    spider_free(spider_current_trx, share->use_hs_writes, MYF(0));
+  if (share->hs_read_ports)
+    spider_free(spider_current_trx, share->hs_read_ports, MYF(0));
+  if (share->hs_write_ports)
+    spider_free(spider_current_trx, share->hs_write_ports, MYF(0));
+  if (share->hs_write_to_reads)
+    spider_free(spider_current_trx, share->hs_write_to_reads, MYF(0));
+#endif
+  if (share->use_handlers)
+    spider_free(spider_current_trx, share->use_handlers, MYF(0));
+  if (share->connect_timeouts)
+    spider_free(spider_current_trx, share->connect_timeouts, MYF(0));
+  if (share->net_read_timeouts)
+    spider_free(spider_current_trx, share->net_read_timeouts, MYF(0));
+  if (share->net_write_timeouts)
+    spider_free(spider_current_trx, share->net_write_timeouts, MYF(0));
+  if (share->access_balances)
+    spider_free(spider_current_trx, share->access_balances, MYF(0));
+  if (share->bka_table_name_types)
+    spider_free(spider_current_trx, share->bka_table_name_types, MYF(0));
+  if (share->strict_group_bys)
+    spider_free(spider_current_trx, share->strict_group_bys, MYF(0));
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  if (share->monitoring_bg_interval)
+    spider_free(spider_current_trx, share->monitoring_bg_interval, MYF(0));
+#endif
+  if (share->monitoring_limit)
+    spider_free(spider_current_trx, share->monitoring_limit, MYF(0));
+  if (share->monitoring_sid)
+    spider_free(spider_current_trx, share->monitoring_sid, MYF(0));
+  if (share->alter_table.tmp_server_names)
+    spider_free(spider_current_trx, share->alter_table.tmp_server_names,
+      MYF(0));
+  if (share->key_hint)
+  {
+    delete [] share->key_hint;
+    share->key_hint = NULL;
+  }
+  if (share->wide_share)
+    spider_free_wide_share(share->wide_share);
+  DBUG_RETURN(0);
+}
+
+void spider_free_tmp_share_alloc(
+  SPIDER_SHARE *share
+) {
+  DBUG_ENTER("spider_free_tmp_share_alloc");
+  if (share->server_names && share->server_names[0])
+  {
+    spider_free(spider_current_trx, share->server_names[0], MYF(0));
+    share->server_names[0] = NULL;
+  }
+  if (share->tgt_table_names && share->tgt_table_names[0])
+  {
+    spider_free(spider_current_trx, share->tgt_table_names[0], MYF(0));
+    share->tgt_table_names[0] = NULL;
+  }
+  if (share->tgt_dbs && share->tgt_dbs[0])
+  {
+    spider_free(spider_current_trx, share->tgt_dbs[0], MYF(0));
+    share->tgt_dbs[0] = NULL;
+  }
+  if (share->tgt_hosts && share->tgt_hosts[0])
+  {
+    spider_free(spider_current_trx, share->tgt_hosts[0], MYF(0));
+    share->tgt_hosts[0] = NULL;
+  }
+  if (share->tgt_usernames && share->tgt_usernames[0])
+  {
+    spider_free(spider_current_trx, share->tgt_usernames[0], MYF(0));
+    share->tgt_usernames[0] = NULL;
+  }
+  if (share->tgt_passwords && share->tgt_passwords[0])
+  {
+    spider_free(spider_current_trx, share->tgt_passwords[0], MYF(0));
+    share->tgt_passwords[0] = NULL;
+  }
+  if (share->tgt_sockets && share->tgt_sockets[0])
+  {
+    spider_free(spider_current_trx, share->tgt_sockets[0], MYF(0));
+    share->tgt_sockets[0] = NULL;
+  }
+  if (share->tgt_wrappers && share->tgt_wrappers[0])
+  {
+    spider_free(spider_current_trx, share->tgt_wrappers[0], MYF(0));
+    share->tgt_wrappers[0] = NULL;
+  }
+  if (share->tgt_ssl_cas && share->tgt_ssl_cas[0])
+  {
+    spider_free(spider_current_trx, share->tgt_ssl_cas[0], MYF(0));
+    share->tgt_ssl_cas[0] = NULL;
+  }
+  if (share->tgt_ssl_capaths && share->tgt_ssl_capaths[0])
+  {
+    spider_free(spider_current_trx, share->tgt_ssl_capaths[0], MYF(0));
+    share->tgt_ssl_capaths[0] = NULL;
+  }
+  if (share->tgt_ssl_certs && share->tgt_ssl_certs[0])
+  {
+    spider_free(spider_current_trx, share->tgt_ssl_certs[0], MYF(0));
+    share->tgt_ssl_certs[0] = NULL;
+  }
+  if (share->tgt_ssl_ciphers && share->tgt_ssl_ciphers[0])
+  {
+    spider_free(spider_current_trx, share->tgt_ssl_ciphers[0], MYF(0));
+    share->tgt_ssl_ciphers[0] = NULL;
+  }
+  if (share->tgt_ssl_keys && share->tgt_ssl_keys[0])
+  {
+    spider_free(spider_current_trx, share->tgt_ssl_keys[0], MYF(0));
+    share->tgt_ssl_keys[0] = NULL;
+  }
+  if (share->tgt_default_files && share->tgt_default_files[0])
+  {
+    spider_free(spider_current_trx, share->tgt_default_files[0], MYF(0));
+    share->tgt_default_files[0] = NULL;
+  }
+  if (share->tgt_default_groups && share->tgt_default_groups[0])
+  {
+    spider_free(spider_current_trx, share->tgt_default_groups[0], MYF(0));
+    share->tgt_default_groups[0] = NULL;
+  }
+  if (share->tgt_dsns && share->tgt_dsns[0])
+  {
+    spider_free(spider_current_trx, share->tgt_dsns[0], MYF(0));
+    share->tgt_dsns[0] = NULL;
+  }
+  if (share->tgt_pk_names && share->tgt_pk_names[0])
+  {
+    spider_free(spider_current_trx, share->tgt_pk_names[0], MYF(0));
+    share->tgt_pk_names[0] = NULL;
+  }
+  if (share->tgt_sequence_names && share->tgt_sequence_names[0])
+  {
+    spider_free(spider_current_trx, share->tgt_sequence_names[0], MYF(0));
+    share->tgt_sequence_names[0] = NULL;
+  }
+  if (share->static_link_ids && share->static_link_ids[0])
+  {
+    spider_free(spider_current_trx, share->static_link_ids[0], MYF(0));
+    share->static_link_ids[0] = NULL;
+  }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (share->hs_read_socks && share->hs_read_socks[0])
+  {
+    spider_free(spider_current_trx, share->hs_read_socks[0], MYF(0));
+    share->hs_read_socks[0] = NULL;
+  }
+  if (share->hs_write_socks && share->hs_write_socks[0])
+  {
+    spider_free(spider_current_trx, share->hs_write_socks[0], MYF(0));
+    share->hs_write_socks[0] = NULL;
+  }
+#endif
+  if (share->bka_engine)
+  {
+    spider_free(spider_current_trx, share->bka_engine, MYF(0));
+    share->bka_engine = NULL;
+  }
+  if (share->conn_keys)
+  {
+    spider_free(spider_current_trx, share->conn_keys, MYF(0));
+    share->conn_keys = NULL;
+  }
+  if (share->static_key_cardinality)
+    spider_free(spider_current_trx, share->static_key_cardinality, MYF(0));
+  if (share->key_hint)
+  {
+    delete [] share->key_hint;
+    share->key_hint = NULL;
+  }
+  DBUG_VOID_RETURN;
+}
+
+char *spider_get_string_between_quote(
+  char *ptr,
+  bool alloc,
+  SPIDER_PARAM_STRING_PARSE *param_string_parse
+) {
+  char *start_ptr, *end_ptr, *tmp_ptr, *esc_ptr;
+  bool find_flg = FALSE;
+  DBUG_ENTER("spider_get_string_between_quote");
+
+  start_ptr = strchr(ptr, '\'');
+  end_ptr = strchr(ptr, '"');
+  if (start_ptr && (!end_ptr || start_ptr < end_ptr))
+  {
+    tmp_ptr = ++start_ptr;
+    while (!find_flg)
+    {
+      if (!(end_ptr = strchr(tmp_ptr, '\'')))
+        DBUG_RETURN(NULL);
+      esc_ptr = tmp_ptr;
+      while (!find_flg)
+      {
+        esc_ptr = strchr(esc_ptr, '\\');
+        if (!esc_ptr || esc_ptr > end_ptr)
+          find_flg = TRUE;
+        else if (esc_ptr == end_ptr - 1)
+        {
+          tmp_ptr = end_ptr + 1;
+          break;
+        } else {
+          esc_ptr += 2;
+        }
+      }
+    }
+  } else if (end_ptr)
+  {
+    start_ptr = end_ptr;
+    tmp_ptr = ++start_ptr;
+    while (!find_flg)
+    {
+      if (!(end_ptr = strchr(tmp_ptr, '"')))
+        DBUG_RETURN(NULL);
+      esc_ptr = tmp_ptr;
+      while (!find_flg)
+      {
+        esc_ptr = strchr(esc_ptr, '\\');
+        if (!esc_ptr || esc_ptr > end_ptr)
+          find_flg = TRUE;
+        else if (esc_ptr == end_ptr - 1)
+        {
+          tmp_ptr = end_ptr + 1;
+          break;
+        } else {
+          esc_ptr += 2;
+        }
+      }
+    }
+  } else
+    DBUG_RETURN(NULL);
+
+  *end_ptr = '\0';
+
+  if (param_string_parse)
+    param_string_parse->set_param_value(start_ptr, start_ptr + strlen(start_ptr) + 1);
+
+  if (alloc)
+  {
+    DBUG_RETURN(
+      spider_create_string(
+      start_ptr,
+      strlen(start_ptr))
+    );
+  } else {
+    DBUG_RETURN(start_ptr);
+  }
+}
+
+int spider_create_string_list(
+  char ***string_list,
+  uint **string_length_list,
+  uint *list_length,
+  char *str,
+  uint length,
+  SPIDER_PARAM_STRING_PARSE *param_string_parse
+) {
+  int roop_count;
+  char *tmp_ptr, *tmp_ptr2, *tmp_ptr3, *tmp_ptr4, *esc_ptr;
+  bool find_flg = FALSE;
+  DBUG_ENTER("spider_create_string_list");
+
+  *list_length = 0;
+  param_string_parse->init_param_value();
+  if (!str)
+  {
+    *string_list = NULL;
+    DBUG_RETURN(0);
+  }
+
+  tmp_ptr = str;
+  while (*tmp_ptr == ' ')
+    tmp_ptr++;
+  if (*tmp_ptr)
+    *list_length = 1;
+  else {
+    *string_list = NULL;
+    DBUG_RETURN(0);
+  }
+
+  bool last_esc_flg = FALSE;
+  while (TRUE)
+  {
+    if ((tmp_ptr2 = strchr(tmp_ptr, ' ')))
+    {
+      find_flg = FALSE;
+      last_esc_flg = FALSE;
+      esc_ptr = tmp_ptr;
+      while (!find_flg)
+      {
+        esc_ptr = strchr(esc_ptr, '\\');
+        if (!esc_ptr || esc_ptr > tmp_ptr2)
+        {
+          find_flg = TRUE;
+        }
+        else if (esc_ptr == tmp_ptr2 - 1)
+        {
+          last_esc_flg = TRUE;
+          tmp_ptr = tmp_ptr2 + 1;
+          break;
+        } else {
+          last_esc_flg = TRUE;
+          esc_ptr += 2;
+        }
+      }
+      if (find_flg)
+      {
+        (*list_length)++;
+        tmp_ptr = tmp_ptr2 + 1;
+        while (*tmp_ptr == ' ')
+          tmp_ptr++;
+      }
+    } else
+      break;
+  }
+
+  if (!(*string_list = (char**)
+    spider_bulk_malloc(spider_current_trx, 37, MYF(MY_WME | MY_ZEROFILL),
+      string_list, (uint) (sizeof(char*) * (*list_length)),
+      string_length_list, (uint) (sizeof(int) * (*list_length)),
+      NullS))
+  ) {
+    my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+
+  tmp_ptr = str;
+  while (*tmp_ptr == ' ')
+  {
+    *tmp_ptr = '\0';
+    tmp_ptr++;
+  }
+  tmp_ptr3 = tmp_ptr;
+
+  for (roop_count = 0; roop_count < (int) *list_length - 1; roop_count++)
+  {
+    bool esc_flg = FALSE;
+    find_flg = FALSE;
+    while (TRUE)
+    {
+      tmp_ptr2 = strchr(tmp_ptr, ' ');
+
+      esc_ptr = tmp_ptr;
+      while (!find_flg)
+      {
+        esc_ptr = strchr(esc_ptr, '\\');
+        if (!esc_ptr || esc_ptr > tmp_ptr2)
+        {
+          find_flg = TRUE;
+        }
+        else if (esc_ptr == tmp_ptr2 - 1)
+        {
+          esc_flg = TRUE;
+          tmp_ptr = tmp_ptr2 + 1;
+          break;
+        } else {
+          esc_flg = TRUE;
+          esc_ptr += 2;
+        }
+      }
+      if (find_flg)
+        break;
+    }
+    tmp_ptr = tmp_ptr2;
+
+    while (*tmp_ptr == ' ')
+    {
+      *tmp_ptr = '\0';
+      tmp_ptr++;
+    }
+
+    (*string_length_list)[roop_count] = strlen(tmp_ptr3);
+    if (!((*string_list)[roop_count] = spider_create_string(
+      tmp_ptr3, (*string_length_list)[roop_count]))
+    ) {
+      my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+
+    if (esc_flg)
+    {
+      esc_ptr = (*string_list)[roop_count];
+      while (TRUE)
+      {
+        esc_ptr = strchr(esc_ptr, '\\');
+        if (!esc_ptr)
+          break;
+        switch(*(esc_ptr + 1))
+        {
+          case 'b':
+            *esc_ptr = '\b';
+            break;
+          case 'n':
+            *esc_ptr = '\n';
+            break;
+          case 'r':
+            *esc_ptr = '\r';
+            break;
+          case 't':
+            *esc_ptr = '\t';
+            break;
+          default:
+            *esc_ptr = *(esc_ptr + 1);
+            break;
+        }
+        esc_ptr++;
+        tmp_ptr4 = esc_ptr;
+        do
+        {
+          *tmp_ptr4 = *(tmp_ptr4 + 1);
+          tmp_ptr4++;
+        } while (*tmp_ptr4);
+        (*string_length_list)[roop_count] -= 1;
+      }
+    }
+    DBUG_PRINT("info",("spider string_list[%d]=%s", roop_count,
+      (*string_list)[roop_count]));
+    tmp_ptr3 = tmp_ptr;
+  }
+  (*string_length_list)[roop_count] = strlen(tmp_ptr3);
+  if (!((*string_list)[roop_count] = spider_create_string(
+    tmp_ptr3, (*string_length_list)[roop_count]))
+  ) {
+    my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  if (last_esc_flg)
+  {
+    esc_ptr = (*string_list)[roop_count];
+    while (TRUE)
+    {
+      esc_ptr = strchr(esc_ptr, '\\');
+      if (!esc_ptr)
+        break;
+      switch(*(esc_ptr + 1))
+      {
+        case 'b':
+          *esc_ptr = '\b';
+          break;
+        case 'n':
+          *esc_ptr = '\n';
+          break;
+        case 'r':
+          *esc_ptr = '\r';
+          break;
+        case 't':
+          *esc_ptr = '\t';
+          break;
+        default:
+          *esc_ptr = *(esc_ptr + 1);
+          break;
+      }
+      esc_ptr++;
+      tmp_ptr4 = esc_ptr;
+      do
+      {
+        *tmp_ptr4 = *(tmp_ptr4 + 1);
+        tmp_ptr4++;
+      } while (*tmp_ptr4);
+      (*string_length_list)[roop_count] -= 1;
+    }
+  }
+
+  param_string_parse->set_param_value(tmp_ptr3,
+                                      tmp_ptr3 + strlen(tmp_ptr3) + 1);
+
+  DBUG_PRINT("info",("spider string_list[%d]=%s", roop_count,
+    (*string_list)[roop_count]));
+
+  DBUG_RETURN(0);
+}
+
+int spider_create_long_list(
+  long **long_list,
+  uint *list_length,
+  char *str,
+  uint length,
+  long min_val,
+  long max_val,
+  SPIDER_PARAM_STRING_PARSE *param_string_parse
+) {
+  int roop_count;
+  char *tmp_ptr;
+  DBUG_ENTER("spider_create_long_list");
+
+  *list_length = 0;
+  param_string_parse->init_param_value();
+  if (!str)
+  {
+    *long_list = NULL;
+    DBUG_RETURN(0);
+  }
+
+  tmp_ptr = str;
+  while (*tmp_ptr == ' ')
+    tmp_ptr++;
+  if (*tmp_ptr)
+    *list_length = 1;
+  else {
+    *long_list = NULL;
+    DBUG_RETURN(0);
+  }
+
+  while (TRUE)
+  {
+    if ((tmp_ptr = strchr(tmp_ptr, ' ')))
+    {
+      (*list_length)++;
+      tmp_ptr = tmp_ptr + 1;
+      while (*tmp_ptr == ' ')
+        tmp_ptr++;
+    } else
+      break;
+  }
+
+  if (!(*long_list = (long*)
+    spider_bulk_malloc(spider_current_trx, 38, MYF(MY_WME | MY_ZEROFILL),
+      long_list, (uint) (sizeof(long) * (*list_length)),
+      NullS))
+  ) {
+    my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+
+  tmp_ptr = str;
+  for (roop_count = 0; roop_count < (int) *list_length; roop_count++)
+  {
+    if (roop_count != 0)
+      tmp_ptr = strchr(tmp_ptr, ' ');
+
+    while (*tmp_ptr == ' ')
+    {
+      *tmp_ptr = '\0';
+      tmp_ptr++;
+    }
+    (*long_list)[roop_count] = atol(tmp_ptr);
+    if ((*long_list)[roop_count] < min_val)
+      (*long_list)[roop_count] = min_val;
+    else if ((*long_list)[roop_count] > max_val)
+      (*long_list)[roop_count] = max_val;
+  }
+
+  param_string_parse->set_param_value(tmp_ptr,
+                                      tmp_ptr + strlen(tmp_ptr) + 1);
+
+#ifndef DBUG_OFF
+  for (roop_count = 0; roop_count < (int) *list_length; roop_count++)
+  {
+    DBUG_PRINT("info",("spider long_list[%d]=%ld", roop_count,
+      (*long_list)[roop_count]));
+  }
+#endif
+
+  DBUG_RETURN(0);
+}
+
+int spider_create_longlong_list(
+  longlong **longlong_list,
+  uint *list_length,
+  char *str,
+  uint length,
+  longlong min_val,
+  longlong max_val,
+  SPIDER_PARAM_STRING_PARSE *param_string_parse
+) {
+  int error_num, roop_count;
+  char *tmp_ptr;
+  DBUG_ENTER("spider_create_longlong_list");
+
+  *list_length = 0;
+  param_string_parse->init_param_value();
+  if (!str)
+  {
+    *longlong_list = NULL;
+    DBUG_RETURN(0);
+  }
+
+  tmp_ptr = str;
+  while (*tmp_ptr == ' ')
+    tmp_ptr++;
+  if (*tmp_ptr)
+    *list_length = 1;
+  else {
+    *longlong_list = NULL;
+    DBUG_RETURN(0);
+  }
+
+  while (TRUE)
+  {
+    if ((tmp_ptr = strchr(tmp_ptr, ' ')))
+    {
+      (*list_length)++;
+      tmp_ptr = tmp_ptr + 1;
+      while (*tmp_ptr == ' ')
+        tmp_ptr++;
+    } else
+      break;
+  }
+
+  if (!(*longlong_list = (longlong *)
+    spider_bulk_malloc(spider_current_trx, 39, MYF(MY_WME | MY_ZEROFILL),
+      longlong_list, (uint) (sizeof(longlong) * (*list_length)),
+      NullS))
+  ) {
+    my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+
+  tmp_ptr = str;
+  for (roop_count = 0; roop_count < (int) *list_length; roop_count++)
+  {
+    if (roop_count != 0)
+      tmp_ptr = strchr(tmp_ptr, ' ');
+
+    while (*tmp_ptr == ' ')
+    {
+      *tmp_ptr = '\0';
+      tmp_ptr++;
+    }
+    (*longlong_list)[roop_count] = my_strtoll10(tmp_ptr, (char**) NULL,
+      &error_num);
+    if ((*longlong_list)[roop_count] < min_val)
+      (*longlong_list)[roop_count] = min_val;
+    else if ((*longlong_list)[roop_count] > max_val)
+      (*longlong_list)[roop_count] = max_val;
+  }
+
+  param_string_parse->set_param_value(tmp_ptr,
+                                      tmp_ptr + strlen(tmp_ptr) + 1);
+
+#ifndef DBUG_OFF
+  for (roop_count = 0; roop_count < (int) *list_length; roop_count++)
+  {
+    DBUG_PRINT("info",("spider longlong_list[%d]=%lld", roop_count,
+      (*longlong_list)[roop_count]));
+  }
+#endif
+
+  DBUG_RETURN(0);
+}
+
+int spider_increase_string_list(
+  char ***string_list,
+  uint **string_length_list,
+  uint *list_length,
+  uint *list_charlen,
+  uint link_count
+) {
+  int roop_count;
+  char **tmp_str_list, *tmp_str;
+  uint *tmp_length_list, tmp_length;
+  DBUG_ENTER("spider_increase_string_list");
+  if (*list_length == link_count)
+    DBUG_RETURN(0);
+  if (*list_length > 1)
+  {
+    my_printf_error(ER_SPIDER_DIFFERENT_LINK_COUNT_NUM,
+      ER_SPIDER_DIFFERENT_LINK_COUNT_STR, MYF(0));
+    DBUG_RETURN(ER_SPIDER_DIFFERENT_LINK_COUNT_NUM);
+  }
+
+  if (*string_list)
+  {
+    tmp_str = (*string_list)[0];
+    tmp_length = (*string_length_list)[0];
+  } else {
+    tmp_str = NULL;
+    tmp_length = 0;
+  }
+
+  if (!(tmp_str_list = (char**)
+    spider_bulk_malloc(spider_current_trx, 40, MYF(MY_WME | MY_ZEROFILL),
+      &tmp_str_list, (uint) (sizeof(char*) * link_count),
+      &tmp_length_list, (uint) (sizeof(uint) * link_count),
+      NullS))
+  ) {
+    my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+
+  for (roop_count = 0; roop_count < (int) link_count; roop_count++)
+  {
+    tmp_length_list[roop_count] = tmp_length;
+    if (tmp_str)
+    {
+      if (!(tmp_str_list[roop_count] = spider_create_string(
+        tmp_str, tmp_length))
+      )
+        goto error;
+      DBUG_PRINT("info",("spider string_list[%d]=%s", roop_count,
+        tmp_str_list[roop_count]));
+    } else
+      tmp_str_list[roop_count] = NULL;
+  }
+  if (*string_list)
+  {
+    if ((*string_list)[0])
+      spider_free(spider_current_trx, (*string_list)[0], MYF(0));
+    spider_free(spider_current_trx, *string_list, MYF(0));
+  }
+  *list_charlen = (tmp_length + 1) * link_count - 1;
+  *list_length = link_count;
+  *string_list = tmp_str_list;
+  *string_length_list = tmp_length_list;
+
+  DBUG_RETURN(0);
+
+error:
+  for (roop_count = 0; roop_count < (int) link_count; roop_count++)
+  {
+    if (tmp_str_list[roop_count])
+      spider_free(spider_current_trx, tmp_str_list[roop_count], MYF(0));
+  }
+  if (tmp_str_list)
+    spider_free(spider_current_trx, tmp_str_list, MYF(0));
+  my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+  DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+}
+
+int spider_increase_null_string_list(
+  char ***string_list,
+  uint **string_length_list,
+  uint *list_length,
+  uint *list_charlen,
+  uint link_count
+) {
+  int roop_count;
+  char **tmp_str_list;
+  uint *tmp_length_list;
+  DBUG_ENTER("spider_increase_null_string_list");
+  if (*list_length == link_count)
+    DBUG_RETURN(0);
+
+  if (!(tmp_str_list = (char**)
+    spider_bulk_malloc(spider_current_trx, 247, MYF(MY_WME | MY_ZEROFILL),
+      &tmp_str_list, (uint) (sizeof(char*) * link_count),
+      &tmp_length_list, (uint) (sizeof(uint) * link_count),
+      NullS))
+  ) {
+    my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+
+  for (roop_count = 0; roop_count < (int) *list_length; roop_count++)
+  {
+    tmp_str_list[roop_count] = (*string_list)[roop_count];
+    tmp_length_list[roop_count] = (*string_length_list)[roop_count];
+  }
+  if (*string_list)
+  {
+    spider_free(spider_current_trx, *string_list, MYF(0));
+  }
+  *list_length = link_count;
+  *string_list = tmp_str_list;
+  *string_length_list = tmp_length_list;
+#ifndef DBUG_OFF
+  DBUG_PRINT("info",("spider list_length=%u", *list_length));
+  for (roop_count = 0; roop_count < (int) *list_length; roop_count++)
+  {
+    DBUG_PRINT("info",("spider string_list[%d]=%s", roop_count,
+      (*string_list)[roop_count] ? (*string_list)[roop_count] : "NULL"));
+    DBUG_PRINT("info",("spider string_length_list[%d]=%u", roop_count,
+      (*string_length_list)[roop_count]));
+  }
+#endif
+
+  DBUG_RETURN(0);
+}
+
+int spider_increase_long_list(
+  long **long_list,
+  uint *list_length,
+  uint link_count
+) {
+  int roop_count;
+  long *tmp_long_list, tmp_long;
+  DBUG_ENTER("spider_increase_long_list");
+  if (*list_length == link_count)
+    DBUG_RETURN(0);
+  if (*list_length > 1)
+  {
+    my_printf_error(ER_SPIDER_DIFFERENT_LINK_COUNT_NUM,
+      ER_SPIDER_DIFFERENT_LINK_COUNT_STR, MYF(0));
+    DBUG_RETURN(ER_SPIDER_DIFFERENT_LINK_COUNT_NUM);
+  }
+
+  if (*long_list)
+    tmp_long = (*long_list)[0];
+  else
+    tmp_long = -1;
+
+  if (!(tmp_long_list = (long*)
+    spider_bulk_malloc(spider_current_trx, 41, MYF(MY_WME | MY_ZEROFILL),
+      &tmp_long_list, (uint) (sizeof(long) * link_count),
+      NullS))
+  ) {
+    my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+
+  for (roop_count = 0; roop_count < (int) link_count; roop_count++)
+  {
+    tmp_long_list[roop_count] = tmp_long;
+    DBUG_PRINT("info",("spider long_list[%d]=%ld", roop_count,
+      tmp_long));
+  }
+  if (*long_list)
+    spider_free(spider_current_trx, *long_list, MYF(0));
+  *list_length = link_count;
+  *long_list = tmp_long_list;
+
+  DBUG_RETURN(0);
+}
+
+int spider_increase_longlong_list(
+  longlong **longlong_list,
+  uint *list_length,
+  uint link_count
+) {
+  int roop_count;
+  longlong *tmp_longlong_list, tmp_longlong;
+  DBUG_ENTER("spider_increase_longlong_list");
+  if (*list_length == link_count)
+    DBUG_RETURN(0);
+  if (*list_length > 1)
+  {
+    my_printf_error(ER_SPIDER_DIFFERENT_LINK_COUNT_NUM,
+      ER_SPIDER_DIFFERENT_LINK_COUNT_STR, MYF(0));
+    DBUG_RETURN(ER_SPIDER_DIFFERENT_LINK_COUNT_NUM);
+  }
+
+  if (*longlong_list)
+    tmp_longlong = (*longlong_list)[0];
+  else
+    tmp_longlong = -1;
+
+  if (!(tmp_longlong_list = (longlong*)
+    spider_bulk_malloc(spider_current_trx, 42, MYF(MY_WME | MY_ZEROFILL),
+      &tmp_longlong_list, (uint) (sizeof(longlong) * link_count),
+      NullS))
+  ) {
+    my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+
+  for (roop_count = 0; roop_count < (int) link_count; roop_count++)
+  {
+    tmp_longlong_list[roop_count] = tmp_longlong;
+    DBUG_PRINT("info",("spider longlong_list[%d]=%lld", roop_count,
+      tmp_longlong));
+  }
+  if (*longlong_list)
+    spider_free(spider_current_trx, *longlong_list, MYF(0));
+  *list_length = link_count;
+  *longlong_list = tmp_longlong_list;
+
+  DBUG_RETURN(0);
+}
+
+static int spider_set_ll_value(
+  longlong *value,
+  char *str
+) {
+  int error_num = 0;
+  DBUG_ENTER("spider_set_ll_value");
+  *value = my_strtoll10(str, (char**) NULL, &error_num);
+  DBUG_RETURN(error_num);
+}
+
+/**
+  Print a parameter string error message.
+
+  @return                   Error code.
+*/
+
+int st_spider_param_string_parse::print_param_error()
+{
+  if (start_title_ptr)
+  {
+    /* Restore the input delimiter characters */
+    restore_delims();
+
+    /* Print the error message */
+    switch (error_num)
+    {
+    case ER_SPIDER_INVALID_UDF_PARAM_NUM:
+      my_printf_error(error_num, ER_SPIDER_INVALID_UDF_PARAM_STR,
+                      MYF(0), start_title_ptr);
+      break;
+    case ER_SPIDER_INVALID_CONNECT_INFO_NUM:
+    default:
+      my_printf_error(error_num, ER_SPIDER_INVALID_CONNECT_INFO_STR,
+                      MYF(0), start_title_ptr);
+    }
+
+    return error_num;
+  }
+  else
+    return 0;
+}
+
+#define SPIDER_PARAM_STR_LEN(name) name ## _length
+#define SPIDER_PARAM_STR(title_name, param_name) \
+  if (!strncasecmp(tmp_ptr, title_name, title_length)) \
+  { \
+    DBUG_PRINT("info",("spider " title_name " start")); \
+    if (!share->param_name) \
+    { \
+      if ((share->param_name = spider_get_string_between_quote( \
+        start_ptr, TRUE, &connect_string_parse))) \
+        share->SPIDER_PARAM_STR_LEN(param_name) = strlen(share->param_name); \
+      else { \
+        error_num = connect_string_parse.print_param_error(); \
+        goto error; \
+      } \
+      DBUG_PRINT("info",("spider " title_name "=%s", share->param_name)); \
+    } \
+    break; \
+  }
+#define SPIDER_PARAM_STR_LENS(name) name ## _lengths
+#define SPIDER_PARAM_STR_CHARLEN(name) name ## _charlen
+#define SPIDER_PARAM_STR_LIST(title_name, param_name) \
+  if (!strncasecmp(tmp_ptr, title_name, title_length)) \
+  { \
+    DBUG_PRINT("info",("spider " title_name " start")); \
+    if (!share->param_name) \
+    { \
+      if ((tmp_ptr2 = spider_get_string_between_quote( \
+        start_ptr, FALSE))) \
+      { \
+        share->SPIDER_PARAM_STR_CHARLEN(param_name) = strlen(tmp_ptr2); \
+        if ((error_num = spider_create_string_list( \
+          &share->param_name, \
+          &share->SPIDER_PARAM_STR_LENS(param_name), \
+          &share->SPIDER_PARAM_STR_LEN(param_name), \
+          tmp_ptr2, \
+          share->SPIDER_PARAM_STR_CHARLEN(param_name), \
+          &connect_string_parse))) \
+          goto error; \
+      } else { \
+        error_num = connect_string_parse.print_param_error(); \
+        goto error; \
+      } \
+    } \
+    break; \
+  }
+#define SPIDER_PARAM_HINT(title_name, param_name, check_length, max_size, append_method) \
+  if (!strncasecmp(tmp_ptr, title_name, check_length)) \
+  { \
+    DBUG_PRINT("info",("spider " title_name " start")); \
+    DBUG_PRINT("info",("spider max_size=%d", max_size)); \
+    int hint_num = atoi(tmp_ptr + check_length); \
+    DBUG_PRINT("info",("spider hint_num=%d", hint_num)); \
+    DBUG_PRINT("info",("spider share->param_name=%p", share->param_name)); \
+    if (share->param_name) \
+    { \
+      if (hint_num < 0 || hint_num >= max_size) \
+      { \
+        error_num = connect_string_parse.print_param_error(); \
+        goto error; \
+      } else if (share->param_name[hint_num].length() > 0) \
+        break; \
+      char *hint_str = spider_get_string_between_quote(start_ptr, FALSE); \
+      if ((error_num = \
+        append_method(&share->param_name[hint_num], hint_str))) \
+        goto error; \
+      DBUG_PRINT("info",("spider " title_name "[%d]=%s", hint_num, \
+        share->param_name[hint_num].ptr())); \
+    } else { \
+      error_num = connect_string_parse.print_param_error(); \
+      goto error; \
+    } \
+    break; \
+  }
+#define SPIDER_PARAM_NUMHINT(title_name, param_name, check_length, max_size, append_method) \
+  if (!strncasecmp(tmp_ptr, title_name, check_length)) \
+  { \
+    DBUG_PRINT("info",("spider " title_name " start")); \
+    DBUG_PRINT("info",("spider max_size=%d", max_size)); \
+    int hint_num = atoi(tmp_ptr + check_length); \
+    DBUG_PRINT("info",("spider hint_num=%d", hint_num)); \
+    DBUG_PRINT("info",("spider share->param_name=%p", share->param_name)); \
+    if (share->param_name) \
+    { \
+      if (hint_num < 0 || hint_num >= max_size) \
+      { \
+        error_num = connect_string_parse.print_param_error(); \
+        goto error; \
+      } else if (share->param_name[hint_num] != -1) \
+        break; \
+      char *hint_str = spider_get_string_between_quote(start_ptr, FALSE); \
+      if ((error_num = \
+        append_method(&share->param_name[hint_num], hint_str))) \
+        goto error; \
+      DBUG_PRINT("info",("spider " title_name "[%d]=%lld", hint_num, \
+        share->param_name[hint_num])); \
+    } else { \
+      error_num = connect_string_parse.print_param_error(); \
+      goto error; \
+    } \
+    break; \
+  }
+#define SPIDER_PARAM_LONG_LEN(name) name ## _length
+#define SPIDER_PARAM_LONG_LIST_WITH_MAX(title_name, param_name, \
+  min_val, max_val) \
+  if (!strncasecmp(tmp_ptr, title_name, title_length)) \
+  { \
+    DBUG_PRINT("info",("spider " title_name " start")); \
+    if (!share->param_name) \
+    { \
+      if ((tmp_ptr2 = spider_get_string_between_quote( \
+        start_ptr, FALSE))) \
+      { \
+        if ((error_num = spider_create_long_list( \
+          &share->param_name, \
+          &share->SPIDER_PARAM_LONG_LEN(param_name), \
+          tmp_ptr2, \
+          strlen(tmp_ptr2), \
+          min_val, max_val, \
+          &connect_string_parse))) \
+          goto error; \
+      } else { \
+        error_num = connect_string_parse.print_param_error(); \
+        goto error; \
+      } \
+    } \
+    break; \
+  }
+#define SPIDER_PARAM_LONGLONG_LEN(name) name ## _length
+#define SPIDER_PARAM_LONGLONG_LIST_WITH_MAX(title_name, param_name, \
+  min_val, max_val) \
+  if (!strncasecmp(tmp_ptr, title_name, title_length)) \
+  { \
+    DBUG_PRINT("info",("spider " title_name " start")); \
+    if (!share->param_name) \
+    { \
+      if ((tmp_ptr2 = spider_get_string_between_quote( \
+        start_ptr, FALSE))) \
+      { \
+        if ((error_num = spider_create_longlong_list( \
+          &share->param_name, \
+          &share->SPIDER_PARAM_LONGLONG_LEN(param_name), \
+          tmp_ptr2, \
+          strlen(tmp_ptr2), \
+          min_val, max_val, \
+          &connect_string_parse))) \
+          goto error; \
+      } else { \
+        error_num = connect_string_parse.print_param_error(); \
+        goto error; \
+      } \
+    } \
+    break; \
+  }
+#define SPIDER_PARAM_INT_WITH_MAX(title_name, param_name, min_val, max_val) \
+  if (!strncasecmp(tmp_ptr, title_name, title_length)) \
+  { \
+    DBUG_PRINT("info",("spider " title_name " start")); \
+    if (share->param_name == -1) \
+    { \
+      if ((tmp_ptr2 = spider_get_string_between_quote( \
+        start_ptr, FALSE))) \
+      { \
+        share->param_name = atoi(tmp_ptr2); \
+        if (share->param_name < min_val) \
+          share->param_name = min_val; \
+        else if (share->param_name > max_val) \
+          share->param_name = max_val; \
+        connect_string_parse.set_param_value(tmp_ptr2, \
+                                             tmp_ptr2 + \
+                                               strlen(tmp_ptr2) + 1); \
+      } else { \
+        error_num = connect_string_parse.print_param_error(); \
+        goto error; \
+      } \
+      DBUG_PRINT("info",("spider " title_name "=%d", share->param_name)); \
+    } \
+    break; \
+  }
+#define SPIDER_PARAM_INT(title_name, param_name, min_val) \
+  if (!strncasecmp(tmp_ptr, title_name, title_length)) \
+  { \
+    DBUG_PRINT("info",("spider " title_name " start")); \
+    if (share->param_name == -1) \
+    { \
+      if ((tmp_ptr2 = spider_get_string_between_quote( \
+        start_ptr, FALSE))) \
+      { \
+        share->param_name = atoi(tmp_ptr2); \
+        if (share->param_name < min_val) \
+          share->param_name = min_val; \
+        connect_string_parse.set_param_value(tmp_ptr2, \
+                                             tmp_ptr2 + \
+                                               strlen(tmp_ptr2) + 1); \
+      } else { \
+        error_num = connect_string_parse.print_param_error(); \
+        goto error; \
+      } \
+      DBUG_PRINT("info",("spider " title_name "=%d", share->param_name)); \
+    } \
+    break; \
+  }
+#define SPIDER_PARAM_DOUBLE(title_name, param_name, min_val) \
+  if (!strncasecmp(tmp_ptr, title_name, title_length)) \
+  { \
+    DBUG_PRINT("info",("spider " title_name " start")); \
+    if (share->param_name == -1) \
+    { \
+      if ((tmp_ptr2 = spider_get_string_between_quote( \
+        start_ptr, FALSE))) \
+      { \
+        share->param_name = my_atof(tmp_ptr2); \
+        if (share->param_name < min_val) \
+          share->param_name = min_val; \
+        connect_string_parse.set_param_value(tmp_ptr2, \
+                                             tmp_ptr2 + \
+                                               strlen(tmp_ptr2) + 1); \
+      } else { \
+        error_num = connect_string_parse.print_param_error(); \
+        goto error; \
+      } \
+      DBUG_PRINT("info",("spider " title_name "=%f", share->param_name)); \
+    } \
+    break; \
+  }
+#define SPIDER_PARAM_LONGLONG(title_name, param_name, min_val) \
+  if (!strncasecmp(tmp_ptr, title_name, title_length)) \
+  { \
+    DBUG_PRINT("info",("spider " title_name " start")); \
+    if (share->param_name == -1) \
+    { \
+      if ((tmp_ptr2 = spider_get_string_between_quote( \
+        start_ptr, FALSE))) \
+      { \
+        share->param_name = my_strtoll10(tmp_ptr2, (char**) NULL, &error_num); \
+        if (share->param_name < min_val) \
+          share->param_name = min_val; \
+        connect_string_parse.set_param_value(tmp_ptr2, \
+                                             tmp_ptr2 + \
+                                               strlen(tmp_ptr2) + 1); \
+      } else { \
+        error_num = connect_string_parse.print_param_error(); \
+        goto error; \
+      } \
+      DBUG_PRINT("info",("spider " title_name "=%lld", share->param_name)); \
+    } \
+    break; \
+  }
+
+int spider_parse_connect_info(
+  SPIDER_SHARE *share,
+  TABLE_SHARE *table_share,
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  partition_info *part_info,
+#endif
+  uint create_table
+) {
+  int error_num = 0;
+  char *connect_string = NULL;
+  char *sprit_ptr;
+  char *tmp_ptr, *tmp_ptr2, *start_ptr;
+  int roop_count;
+  int title_length;
+  SPIDER_PARAM_STRING_PARSE connect_string_parse;
+  SPIDER_ALTER_TABLE *share_alter;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  partition_element *part_elem;
+  partition_element *sub_elem;
+#endif
+  DBUG_ENTER("spider_parse_connect_info");
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+#if MYSQL_VERSION_ID < 50500
+  DBUG_PRINT("info",("spider partition_info=%s", table_share->partition_info));
+#else
+  DBUG_PRINT("info",("spider partition_info=%s",
+    table_share->partition_info_str));
+#endif
+  DBUG_PRINT("info",("spider part_info=%p", part_info));
+#endif
+  DBUG_PRINT("info",("spider s->db=%s", table_share->db.str));
+  DBUG_PRINT("info",("spider s->table_name=%s", table_share->table_name.str));
+  DBUG_PRINT("info",("spider s->path=%s", table_share->path.str));
+  DBUG_PRINT("info",
+    ("spider s->normalized_path=%s", table_share->normalized_path.str));
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  spider_get_partition_info(share->table_name, share->table_name_length,
+    table_share, part_info, &part_elem, &sub_elem);
+#endif
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  share->sts_bg_mode = -1;
+#endif
+  share->sts_interval = -1;
+  share->sts_mode = -1;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  share->sts_sync = -1;
+#endif
+  share->store_last_sts = -1;
+  share->load_sts_at_startup = -1;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  share->crd_bg_mode = -1;
+#endif
+  share->crd_interval = -1;
+  share->crd_mode = -1;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  share->crd_sync = -1;
+#endif
+  share->store_last_crd = -1;
+  share->load_crd_at_startup = -1;
+  share->crd_type = -1;
+  share->crd_weight = -1;
+  share->internal_offset = -1;
+  share->internal_limit = -1;
+  share->split_read = -1;
+  share->semi_split_read = -1;
+  share->semi_split_read_limit = -1;
+  share->init_sql_alloc_size = -1;
+  share->reset_sql_alloc = -1;
+  share->multi_split_read = -1;
+  share->max_order = -1;
+  share->semi_table_lock = -1;
+  share->semi_table_lock_conn = -1;
+  share->selupd_lock_mode = -1;
+  share->query_cache = -1;
+  share->query_cache_sync = -1;
+  share->internal_delayed = -1;
+  share->bulk_size = -1;
+  share->bulk_update_mode = -1;
+  share->bulk_update_size = -1;
+  share->buffer_size = -1;
+  share->internal_optimize = -1;
+  share->internal_optimize_local = -1;
+  share->scan_rate = -1;
+  share->read_rate = -1;
+  share->priority = -1;
+  share->quick_mode = -1;
+  share->quick_page_size = -1;
+  share->quick_page_byte = -1;
+  share->low_mem_read = -1;
+  share->table_count_mode = -1;
+  share->select_column_mode = -1;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  share->bgs_mode = -1;
+  share->bgs_first_read = -1;
+  share->bgs_second_read = -1;
+#endif
+  share->first_read = -1;
+  share->second_read = -1;
+  share->auto_increment_mode = -1;
+  share->use_table_charset = -1;
+  share->use_pushdown_udf = -1;
+  share->skip_default_condition = -1;
+  share->skip_parallel_search = -1;
+  share->direct_dup_insert = -1;
+  share->direct_order_limit = -1;
+  share->bka_mode = -1;
+  share->read_only_mode = -1;
+  share->error_read_mode = -1;
+  share->error_write_mode = -1;
+  share->active_link_count = -1;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  share->hs_result_free_size = -1;
+#endif
+#ifdef HA_CAN_BULK_ACCESS
+  share->bulk_access_free = -1;
+#endif
+#ifdef HA_CAN_FORCE_BULK_UPDATE
+  share->force_bulk_update = -1;
+#endif
+#ifdef HA_CAN_FORCE_BULK_DELETE
+  share->force_bulk_delete = -1;
+#endif
+  share->casual_read = -1;
+  share->delete_all_rows_type = -1;
+  share->static_records_for_status = -1;
+  share->static_mean_rec_length = -1;
+  for (roop_count = 0; roop_count < (int) table_share->keys; roop_count++)
+  {
+    share->static_key_cardinality[roop_count] = -1;
+  }
+
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  for (roop_count = 4; roop_count > 0; roop_count--)
+#else
+  for (roop_count = 2; roop_count > 0; roop_count--)
+#endif
+  {
+    if (connect_string)
+    {
+      spider_free(spider_current_trx, connect_string, MYF(0));
+      connect_string = NULL;
+    }
+    switch (roop_count)
+    {
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+      case 4:
+        if (!sub_elem || !sub_elem->part_comment)
+          continue;
+        DBUG_PRINT("info",("spider create sub comment string"));
+        if (
+          !(connect_string = spider_create_string(
+            sub_elem->part_comment,
+            strlen(sub_elem->part_comment)))
+        ) {
+          error_num = HA_ERR_OUT_OF_MEM;
+          goto error_alloc_conn_string;
+        }
+        DBUG_PRINT("info",("spider sub comment string=%s", connect_string));
+        break;
+      case 3:
+        if (!part_elem || !part_elem->part_comment)
+          continue;
+        DBUG_PRINT("info",("spider create part comment string"));
+        if (
+          !(connect_string = spider_create_string(
+            part_elem->part_comment,
+            strlen(part_elem->part_comment)))
+        ) {
+          error_num = HA_ERR_OUT_OF_MEM;
+          goto error_alloc_conn_string;
+        }
+        DBUG_PRINT("info",("spider part comment string=%s", connect_string));
+        break;
+#endif
+      case 2:
+        if (table_share->comment.length == 0)
+          continue;
+        DBUG_PRINT("info",("spider create comment string"));
+        if (
+          !(connect_string = spider_create_string(
+            table_share->comment.str,
+            table_share->comment.length))
+        ) {
+          error_num = HA_ERR_OUT_OF_MEM;
+          goto error_alloc_conn_string;
+        }
+        DBUG_PRINT("info",("spider comment string=%s", connect_string));
+        break;
+      default:
+        if (table_share->connect_string.length == 0)
+          continue;
+        DBUG_PRINT("info",("spider create connect_string string"));
+        if (
+          !(connect_string = spider_create_string(
+            table_share->connect_string.str,
+            table_share->connect_string.length))
+        ) {
+          error_num = HA_ERR_OUT_OF_MEM;
+          goto error_alloc_conn_string;
+        }
+        DBUG_PRINT("info",("spider connect_string=%s", connect_string));
+        break;
+    }
+
+    sprit_ptr = connect_string;
+    connect_string_parse.init(connect_string, ER_SPIDER_INVALID_CONNECT_INFO_NUM);
+    while (sprit_ptr)
+    {
+      tmp_ptr = sprit_ptr;
+      while (*tmp_ptr == ' ' || *tmp_ptr == '\r' ||
+        *tmp_ptr == '\n' || *tmp_ptr == '\t')
+        tmp_ptr++;
+
+      if (*tmp_ptr == '\0')
+        break;
+
+      title_length = 0;
+      start_ptr = tmp_ptr;
+      while (*start_ptr != ' ' && *start_ptr != '\'' &&
+        *start_ptr != '"' && *start_ptr != '\0' &&
+        *start_ptr != '\r' && *start_ptr != '\n' &&
+        *start_ptr != '\t')
+      {
+        title_length++;
+        start_ptr++;
+      }
+      connect_string_parse.set_param_title(tmp_ptr, tmp_ptr + title_length);
+      if ((error_num = connect_string_parse.get_next_parameter_head(
+        start_ptr, &sprit_ptr)))
+      {
+        goto error;
+      }
+
+      switch (title_length)
+      {
+        case 0:
+          error_num = connect_string_parse.print_param_error();
+          if (error_num)
+            goto error;
+          continue;
+        case 3:
+          SPIDER_PARAM_LONG_LIST_WITH_MAX("abl", access_balances, 0,
+            2147483647);
+          SPIDER_PARAM_INT_WITH_MAX("aim", auto_increment_mode, 0, 3);
+          SPIDER_PARAM_INT("alc", active_link_count, 1);
+#ifdef HA_CAN_BULK_ACCESS
+          SPIDER_PARAM_INT_WITH_MAX("baf", bulk_access_free, 0, 1);
+#endif
+          SPIDER_PARAM_INT("bfz", buffer_size, 0);
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+          SPIDER_PARAM_LONGLONG("bfr", bgs_first_read, 0);
+          SPIDER_PARAM_INT("bmd", bgs_mode, 0);
+          SPIDER_PARAM_LONGLONG("bsr", bgs_second_read, 0);
+#endif
+          SPIDER_PARAM_STR("bke", bka_engine);
+          SPIDER_PARAM_INT_WITH_MAX("bkm", bka_mode, 0, 2);
+          SPIDER_PARAM_INT("bsz", bulk_size, 0);
+          SPIDER_PARAM_LONG_LIST_WITH_MAX("btt", bka_table_name_types,
+            0, 1);
+          SPIDER_PARAM_INT_WITH_MAX("bum", bulk_update_mode, 0, 2);
+          SPIDER_PARAM_INT("bus", bulk_update_size, 0);
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+          SPIDER_PARAM_INT_WITH_MAX("cbm", crd_bg_mode, 0, 2);
+#endif
+          SPIDER_PARAM_DOUBLE("civ", crd_interval, 0);
+          SPIDER_PARAM_INT_WITH_MAX("cmd", crd_mode, 0, 3);
+          SPIDER_PARAM_INT_WITH_MAX("csr", casual_read, 0, 63);
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+          SPIDER_PARAM_INT_WITH_MAX("csy", crd_sync, 0, 2);
+#endif
+          SPIDER_PARAM_LONG_LIST_WITH_MAX("cto", connect_timeouts, 0,
+            2147483647);
+          SPIDER_PARAM_INT_WITH_MAX("ctp", crd_type, 0, 2);
+          SPIDER_PARAM_DOUBLE("cwg", crd_weight, 1);
+          SPIDER_PARAM_INT_WITH_MAX("dat", delete_all_rows_type, 0, 1);
+          SPIDER_PARAM_INT_WITH_MAX("ddi", direct_dup_insert, 0, 1);
+          SPIDER_PARAM_STR_LIST("dff", tgt_default_files);
+          SPIDER_PARAM_STR_LIST("dfg", tgt_default_groups);
+          SPIDER_PARAM_LONGLONG("dol", direct_order_limit, 0);
+          SPIDER_PARAM_STR_LIST("dsn", tgt_dsns);
+          SPIDER_PARAM_INT_WITH_MAX("erm", error_read_mode, 0, 1);
+          SPIDER_PARAM_INT_WITH_MAX("ewm", error_write_mode, 0, 1);
+#ifdef HA_CAN_FORCE_BULK_DELETE
+          SPIDER_PARAM_INT_WITH_MAX("fbd", force_bulk_delete, 0, 1);
+#endif
+#ifdef HA_CAN_FORCE_BULK_UPDATE
+          SPIDER_PARAM_INT_WITH_MAX("fbu", force_bulk_update, 0, 1);
+#endif
+          SPIDER_PARAM_LONGLONG("frd", first_read, 0);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+          SPIDER_PARAM_LONGLONG("hrf", hs_result_free_size, 0);
+          SPIDER_PARAM_LONG_LIST_WITH_MAX(
+            "hrp", hs_read_ports, 0, 65535);
+          SPIDER_PARAM_STR_LIST("hrs", hs_read_socks);
+          SPIDER_PARAM_LONG_LIST_WITH_MAX(
+            "hwp", hs_write_ports, 0, 65535);
+          SPIDER_PARAM_LONG_LIST_WITH_MAX(
+            "hwr", hs_write_to_reads, 0, 1);
+          SPIDER_PARAM_STR_LIST("hws", hs_write_socks);
+#endif
+          SPIDER_PARAM_INT("isa", init_sql_alloc_size, 0);
+          SPIDER_PARAM_INT_WITH_MAX("idl", internal_delayed, 0, 1);
+          SPIDER_PARAM_LONGLONG("ilm", internal_limit, 0);
+          SPIDER_PARAM_LONGLONG("ios", internal_offset, 0);
+          SPIDER_PARAM_INT_WITH_MAX("iom", internal_optimize, 0, 1);
+          SPIDER_PARAM_INT_WITH_MAX("iol", internal_optimize_local, 0, 1);
+          SPIDER_PARAM_INT_WITH_MAX("lmr", low_mem_read, 0, 1);
+          SPIDER_PARAM_INT_WITH_MAX("lcs", load_crd_at_startup, 0, 1);
+          SPIDER_PARAM_INT_WITH_MAX("lss", load_sts_at_startup, 0, 1);
+          SPIDER_PARAM_LONG_LIST_WITH_MAX("lst", link_statuses, 0, 3);
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+          SPIDER_PARAM_LONG_LIST_WITH_MAX("mbf", monitoring_bg_flag, 0, 1);
+          SPIDER_PARAM_LONGLONG_LIST_WITH_MAX(
+            "mbi", monitoring_bg_interval, 0, 4294967295LL);
+          SPIDER_PARAM_LONG_LIST_WITH_MAX("mbk", monitoring_bg_kind, 0, 3);
+#endif
+          SPIDER_PARAM_LONG_LIST_WITH_MAX("mbp", monitoring_binlog_pos_at_failing, 0, 2);
+          SPIDER_PARAM_LONG_LIST_WITH_MAX("mfg", monitoring_flag, 0, 1);
+          SPIDER_PARAM_LONG_LIST_WITH_MAX("mkd", monitoring_kind, 0, 3);
+          SPIDER_PARAM_LONGLONG_LIST_WITH_MAX(
+            "mlt", monitoring_limit, 0, 9223372036854775807LL);
+          SPIDER_PARAM_INT("mod", max_order, 0);
+          SPIDER_PARAM_LONGLONG_LIST_WITH_MAX(
+            "msi", monitoring_sid, 0, 4294967295LL);
+          SPIDER_PARAM_INT_WITH_MAX("msr", multi_split_read, 0, 2147483647);
+          SPIDER_PARAM_LONG_LIST_WITH_MAX("nrt", net_read_timeouts, 0,
+            2147483647);
+          SPIDER_PARAM_LONG_LIST_WITH_MAX("nwt", net_write_timeouts, 0,
+            2147483647);
+          SPIDER_PARAM_STR_LIST("pkn", tgt_pk_names);
+          SPIDER_PARAM_LONGLONG("prt", priority, 0);
+          SPIDER_PARAM_INT_WITH_MAX("qch", query_cache, 0, 2);
+          SPIDER_PARAM_INT_WITH_MAX("qcs", query_cache_sync, 0, 3);
+          SPIDER_PARAM_INT_WITH_MAX("qmd", quick_mode, 0, 3);
+          SPIDER_PARAM_LONGLONG("qpb", quick_page_byte, 0);
+          SPIDER_PARAM_LONGLONG("qps", quick_page_size, 0);
+          SPIDER_PARAM_INT_WITH_MAX("rom", read_only_mode, 0, 1);
+          SPIDER_PARAM_DOUBLE("rrt", read_rate, 0);
+          SPIDER_PARAM_INT_WITH_MAX("rsa", reset_sql_alloc, 0, 1);
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+          SPIDER_PARAM_INT_WITH_MAX("sbm", sts_bg_mode, 0, 2);
+#endif
+          SPIDER_PARAM_STR_LIST("sca", tgt_ssl_cas);
+          SPIDER_PARAM_STR_LIST("sch", tgt_ssl_ciphers);
+          SPIDER_PARAM_INT_WITH_MAX("scm", select_column_mode, 0, 1);
+          SPIDER_PARAM_STR_LIST("scp", tgt_ssl_capaths);
+          SPIDER_PARAM_STR_LIST("scr", tgt_ssl_certs);
+          SPIDER_PARAM_INT_WITH_MAX("sdc", skip_default_condition, 0, 1);
+          SPIDER_PARAM_LONG_LIST_WITH_MAX("sgb", strict_group_bys, 0, 1);
+          SPIDER_PARAM_DOUBLE("siv", sts_interval, 0);
+          SPIDER_PARAM_STR_LIST("sky", tgt_ssl_keys);
+          SPIDER_PARAM_STR_LIST("sli", static_link_ids);
+          SPIDER_PARAM_INT_WITH_MAX("slc", store_last_crd, 0, 1);
+          SPIDER_PARAM_INT_WITH_MAX("slm", selupd_lock_mode, 0, 2);
+          SPIDER_PARAM_INT_WITH_MAX("sls", store_last_sts, 0, 1);
+          SPIDER_PARAM_INT_WITH_MAX("smd", sts_mode, 1, 2);
+          SPIDER_PARAM_LONGLONG("smr", static_mean_rec_length, 0);
+          SPIDER_PARAM_LONGLONG("spr", split_read, 0);
+          SPIDER_PARAM_INT_WITH_MAX("sps", skip_parallel_search, 0, 3);
+          SPIDER_PARAM_STR_LIST("sqn", tgt_sequence_names);
+          SPIDER_PARAM_LONGLONG("srd", second_read, 0);
+          SPIDER_PARAM_DOUBLE("srt", scan_rate, 0);
+          SPIDER_PARAM_STR_LIST("srv", server_names);
+          SPIDER_PARAM_DOUBLE("ssr", semi_split_read, 0);
+          SPIDER_PARAM_LONGLONG("ssl", semi_split_read_limit, 0);
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+          SPIDER_PARAM_INT_WITH_MAX("ssy", sts_sync, 0, 2);
+#endif
+          SPIDER_PARAM_INT_WITH_MAX("stc", semi_table_lock_conn, 0, 1);
+          SPIDER_PARAM_INT_WITH_MAX("stl", semi_table_lock, 0, 1);
+          SPIDER_PARAM_LONGLONG("srs", static_records_for_status, 0);
+          SPIDER_PARAM_LONG_LIST_WITH_MAX("svc", tgt_ssl_vscs, 0, 1);
+          SPIDER_PARAM_STR_LIST("tbl", tgt_table_names);
+          SPIDER_PARAM_INT_WITH_MAX("tcm", table_count_mode, 0, 3);
+          SPIDER_PARAM_LONG_LIST_WITH_MAX("uhd", use_handlers, 0, 3);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+          SPIDER_PARAM_LONG_LIST_WITH_MAX(
+            "uhr", use_hs_reads, 0, 1);
+          SPIDER_PARAM_LONG_LIST_WITH_MAX(
+            "uhw", use_hs_writes, 0, 1);
+#endif
+          SPIDER_PARAM_INT_WITH_MAX("upu", use_pushdown_udf, 0, 1);
+          SPIDER_PARAM_INT_WITH_MAX("utc", use_table_charset, 0, 1);
+          error_num = connect_string_parse.print_param_error();
+          goto error;
+        case 4:
+          SPIDER_PARAM_STR_LIST("host", tgt_hosts);
+          SPIDER_PARAM_STR_LIST("user", tgt_usernames);
+          SPIDER_PARAM_LONG_LIST_WITH_MAX("port", tgt_ports, 0, 65535);
+          error_num = connect_string_parse.print_param_error();
+          goto error;
+        case 5:
+          SPIDER_PARAM_STR_LIST("table", tgt_table_names);
+          error_num = connect_string_parse.print_param_error();
+          goto error;
+        case 6:
+          SPIDER_PARAM_STR_LIST("server", server_names);
+          SPIDER_PARAM_STR_LIST("socket", tgt_sockets);
+          SPIDER_PARAM_HINT("idx", key_hint, 3, (int) table_share->keys,
+            spider_db_append_key_hint);
+          SPIDER_PARAM_STR_LIST("ssl_ca", tgt_ssl_cas);
+          SPIDER_PARAM_NUMHINT("skc", static_key_cardinality, 3,
+            (int) table_share->keys, spider_set_ll_value);
+          error_num = connect_string_parse.print_param_error();
+          goto error;
+        case 7:
+          SPIDER_PARAM_STR_LIST("wrapper", tgt_wrappers);
+          SPIDER_PARAM_STR_LIST("ssl_key", tgt_ssl_keys);
+          SPIDER_PARAM_STR_LIST("pk_name", tgt_pk_names);
+          error_num = connect_string_parse.print_param_error();
+          goto error;
+        case 8:
+          SPIDER_PARAM_STR_LIST("database", tgt_dbs);
+          SPIDER_PARAM_STR_LIST("password", tgt_passwords);
+          SPIDER_PARAM_INT_WITH_MAX("sts_mode", sts_mode, 1, 2);
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+          SPIDER_PARAM_INT_WITH_MAX("sts_sync", sts_sync, 0, 2);
+#endif
+          SPIDER_PARAM_INT_WITH_MAX("crd_mode", crd_mode, 0, 3);
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+          SPIDER_PARAM_INT_WITH_MAX("crd_sync", crd_sync, 0, 2);
+#endif
+          SPIDER_PARAM_INT_WITH_MAX("crd_type", crd_type, 0, 2);
+          SPIDER_PARAM_LONGLONG("priority", priority, 0);
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+          SPIDER_PARAM_INT("bgs_mode", bgs_mode, 0);
+#endif
+          SPIDER_PARAM_STR_LIST("ssl_cert", tgt_ssl_certs);
+          SPIDER_PARAM_INT_WITH_MAX("bka_mode", bka_mode, 0, 2);
+          error_num = connect_string_parse.print_param_error();
+          goto error;
+        case 9:
+          SPIDER_PARAM_INT("max_order", max_order, 0);
+          SPIDER_PARAM_INT("bulk_size", bulk_size, 0);
+          SPIDER_PARAM_DOUBLE("scan_rate", scan_rate, 0);
+          SPIDER_PARAM_DOUBLE("read_rate", read_rate, 0);
+          error_num = connect_string_parse.print_param_error();
+          goto error;
+        case 10:
+          SPIDER_PARAM_DOUBLE("crd_weight", crd_weight, 1);
+          SPIDER_PARAM_LONGLONG("split_read", split_read, 0);
+          SPIDER_PARAM_INT_WITH_MAX("quick_mode", quick_mode, 0, 3);
+          SPIDER_PARAM_STR_LIST("ssl_cipher", tgt_ssl_ciphers);
+          SPIDER_PARAM_STR_LIST("ssl_capath", tgt_ssl_capaths);
+          SPIDER_PARAM_STR("bka_engine", bka_engine);
+          SPIDER_PARAM_LONGLONG("first_read", first_read, 0);
+          error_num = connect_string_parse.print_param_error();
+          goto error;
+        case 11:
+          SPIDER_PARAM_INT_WITH_MAX("query_cache", query_cache, 0, 2);
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+          SPIDER_PARAM_INT_WITH_MAX("crd_bg_mode", crd_bg_mode, 0, 2);
+          SPIDER_PARAM_INT_WITH_MAX("sts_bg_mode", sts_bg_mode, 0, 2);
+#endif
+          SPIDER_PARAM_LONG_LIST_WITH_MAX("link_status", link_statuses, 0, 3);
+          SPIDER_PARAM_LONG_LIST_WITH_MAX("use_handler", use_handlers, 0, 3);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+          SPIDER_PARAM_LONG_LIST_WITH_MAX("use_hs_read", use_hs_reads, 0, 1);
+#endif
+          SPIDER_PARAM_INT_WITH_MAX("casual_read", casual_read, 0, 63);
+          SPIDER_PARAM_INT("buffer_size", buffer_size, 0);
+          error_num = connect_string_parse.print_param_error();
+          goto error;
+        case 12:
+          SPIDER_PARAM_DOUBLE("sts_interval", sts_interval, 0);
+          SPIDER_PARAM_DOUBLE("crd_interval", crd_interval, 0);
+          SPIDER_PARAM_INT_WITH_MAX("low_mem_read", low_mem_read, 0, 1);
+          SPIDER_PARAM_STR_LIST("default_file", tgt_default_files);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+          SPIDER_PARAM_LONG_LIST_WITH_MAX(
+            "use_hs_write", use_hs_writes, 0, 1);
+          SPIDER_PARAM_LONG_LIST_WITH_MAX(
+            "hs_read_port", hs_read_ports, 0, 65535);
+#endif
+          error_num = connect_string_parse.print_param_error();
+          goto error;
+        case 13:
+          SPIDER_PARAM_STR_LIST("default_group", tgt_default_groups);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+          SPIDER_PARAM_LONG_LIST_WITH_MAX(
+            "hs_write_port", hs_write_ports, 0, 65535);
+#endif
+          SPIDER_PARAM_STR_LIST("sequence_name", tgt_sequence_names);
+          error_num = connect_string_parse.print_param_error();
+          goto error;
+        case 14:
+          SPIDER_PARAM_LONGLONG("internal_limit", internal_limit, 0);
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+          SPIDER_PARAM_LONGLONG("bgs_first_read", bgs_first_read, 0);
+#endif
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+          SPIDER_PARAM_STR_LIST(
+            "hs_read_socket", hs_read_socks);
+#endif
+          SPIDER_PARAM_INT_WITH_MAX("read_only_mode", read_only_mode, 0, 1);
+          SPIDER_PARAM_LONG_LIST_WITH_MAX("access_balance", access_balances, 0,
+            2147483647);
+          SPIDER_PARAM_STR_LIST("static_link_id", static_link_ids);
+          SPIDER_PARAM_INT_WITH_MAX("store_last_crd", store_last_crd, 0, 1);
+          SPIDER_PARAM_INT_WITH_MAX("store_last_sts", store_last_sts, 0, 1);
+          error_num = connect_string_parse.print_param_error();
+          goto error;
+        case 15:
+          SPIDER_PARAM_LONGLONG("internal_offset", internal_offset, 0);
+          SPIDER_PARAM_INT_WITH_MAX("reset_sql_alloc", reset_sql_alloc, 0, 1);
+          SPIDER_PARAM_INT_WITH_MAX("semi_table_lock", semi_table_lock, 0, 1);
+          SPIDER_PARAM_LONGLONG("quick_page_byte", quick_page_byte, 0);
+          SPIDER_PARAM_LONGLONG("quick_page_size", quick_page_size, 0);
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+          SPIDER_PARAM_LONGLONG("bgs_second_read", bgs_second_read, 0);
+#endif
+          SPIDER_PARAM_LONG_LIST_WITH_MAX("monitoring_flag", monitoring_flag, 0, 1);
+          SPIDER_PARAM_LONG_LIST_WITH_MAX("monitoring_kind", monitoring_kind, 0, 3);
+          SPIDER_PARAM_DOUBLE("semi_split_read", semi_split_read, 0);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+          SPIDER_PARAM_STR_LIST(
+            "hs_write_socket", hs_write_socks);
+#endif
+          SPIDER_PARAM_LONG_LIST_WITH_MAX("connect_timeout", connect_timeouts,
+            0, 2147483647);
+          SPIDER_PARAM_LONG_LIST_WITH_MAX("strict_group_by",
+            strict_group_bys, 0, 1);
+          SPIDER_PARAM_INT_WITH_MAX("error_read_mode", error_read_mode, 0, 1);
+          error_num = connect_string_parse.print_param_error();
+          goto error;
+        case 16:
+          SPIDER_PARAM_INT_WITH_MAX(
+            "multi_split_read", multi_split_read, 0, 2147483647);
+          SPIDER_PARAM_INT_WITH_MAX(
+            "selupd_lock_mode", selupd_lock_mode, 0, 2);
+          SPIDER_PARAM_INT_WITH_MAX(
+            "internal_delayed", internal_delayed, 0, 1);
+          SPIDER_PARAM_INT_WITH_MAX(
+            "table_count_mode", table_count_mode, 0, 3);
+          SPIDER_PARAM_INT_WITH_MAX(
+            "use_pushdown_udf", use_pushdown_udf, 0, 1);
+          SPIDER_PARAM_LONGLONG_LIST_WITH_MAX(
+            "monitoring_limit", monitoring_limit, 0, 9223372036854775807LL);
+          SPIDER_PARAM_INT_WITH_MAX(
+            "bulk_update_mode", bulk_update_mode, 0, 2);
+          SPIDER_PARAM_INT("bulk_update_size", bulk_update_size, 0);
+          SPIDER_PARAM_LONG_LIST_WITH_MAX("net_read_timeout",
+            net_read_timeouts, 0, 2147483647);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+          SPIDER_PARAM_LONG_LIST_WITH_MAX(
+            "hs_write_to_read", hs_write_to_reads, 0, 1);
+#endif
+          SPIDER_PARAM_INT_WITH_MAX(
+            "error_write_mode", error_write_mode, 0, 1);
+#ifdef HA_CAN_BULK_ACCESS
+          SPIDER_PARAM_INT_WITH_MAX(
+            "bulk_access_free", bulk_access_free, 0, 1);
+#endif
+          SPIDER_PARAM_INT_WITH_MAX(
+            "query_cache_sync", query_cache_sync, 0, 3);
+          error_num = connect_string_parse.print_param_error();
+          goto error;
+        case 17:
+          SPIDER_PARAM_INT_WITH_MAX(
+            "internal_optimize", internal_optimize, 0, 1);
+          SPIDER_PARAM_INT_WITH_MAX(
+            "use_table_charset", use_table_charset, 0, 1);
+          SPIDER_PARAM_INT_WITH_MAX(
+            "direct_dup_insert", direct_dup_insert, 0, 1);
+          SPIDER_PARAM_INT("active_link_count", active_link_count, 1);
+          SPIDER_PARAM_LONG_LIST_WITH_MAX("net_write_timeout",
+            net_write_timeouts, 0, 2147483647);
+#ifdef HA_CAN_FORCE_BULK_DELETE
+          SPIDER_PARAM_INT_WITH_MAX(
+            "force_bulk_delete", force_bulk_delete, 0, 1);
+#endif
+#ifdef HA_CAN_FORCE_BULK_UPDATE
+          SPIDER_PARAM_INT_WITH_MAX(
+            "force_bulk_update", force_bulk_update, 0, 1);
+#endif
+          error_num = connect_string_parse.print_param_error();
+          goto error;
+        case 18:
+          SPIDER_PARAM_INT_WITH_MAX(
+            "select_column_mode", select_column_mode, 0, 1);
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+          SPIDER_PARAM_LONG_LIST_WITH_MAX(
+            "monitoring_bg_flag", monitoring_bg_flag, 0, 1);
+          SPIDER_PARAM_LONG_LIST_WITH_MAX(
+            "monitoring_bg_kind", monitoring_bg_kind, 0, 3);
+#endif
+          SPIDER_PARAM_LONGLONG(
+            "direct_order_limit", direct_order_limit, 0);
+          error_num = connect_string_parse.print_param_error();
+          goto error;
+        case 19:
+          SPIDER_PARAM_INT("init_sql_alloc_size", init_sql_alloc_size, 0);
+          SPIDER_PARAM_INT_WITH_MAX(
+            "auto_increment_mode", auto_increment_mode, 0, 3);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+          SPIDER_PARAM_LONGLONG("hs_result_free_size", hs_result_free_size, 0);
+#endif
+          SPIDER_PARAM_LONG_LIST_WITH_MAX("bka_table_name_type",
+            bka_table_name_types, 0, 1);
+          SPIDER_PARAM_INT_WITH_MAX(
+            "load_crd_at_startup", load_crd_at_startup, 0, 1);
+          SPIDER_PARAM_INT_WITH_MAX(
+            "load_sts_at_startup", load_sts_at_startup, 0, 1);
+          error_num = connect_string_parse.print_param_error();
+          goto error;
+        case 20:
+          SPIDER_PARAM_LONGLONG_LIST_WITH_MAX(
+            "monitoring_server_id", monitoring_sid, 0, 4294967295LL);
+          SPIDER_PARAM_INT_WITH_MAX(
+            "delete_all_rows_type", delete_all_rows_type, 0, 1);
+          SPIDER_PARAM_INT_WITH_MAX(
+            "skip_parallel_search", skip_parallel_search, 0, 3);
+          error_num = connect_string_parse.print_param_error();
+          goto error;
+        case 21:
+          SPIDER_PARAM_LONGLONG(
+            "semi_split_read_limit", semi_split_read_limit, 0);
+          error_num = connect_string_parse.print_param_error();
+          goto error;
+        case 22:
+          SPIDER_PARAM_LONG_LIST_WITH_MAX(
+            "ssl_verify_server_cert", tgt_ssl_vscs, 0, 1);
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+          SPIDER_PARAM_LONGLONG_LIST_WITH_MAX(
+            "monitoring_bg_interval", monitoring_bg_interval, 0, 4294967295LL);
+#endif
+          SPIDER_PARAM_INT_WITH_MAX(
+            "skip_default_condition", skip_default_condition, 0, 1);
+          SPIDER_PARAM_LONGLONG(
+            "static_mean_rec_length", static_mean_rec_length, 0);
+          error_num = connect_string_parse.print_param_error();
+          goto error;
+        case 23:
+          SPIDER_PARAM_INT_WITH_MAX(
+            "internal_optimize_local", internal_optimize_local, 0, 1);
+          error_num = connect_string_parse.print_param_error();
+          goto error;
+        case 25:
+          SPIDER_PARAM_LONGLONG("static_records_for_status",
+            static_records_for_status, 0);
+          SPIDER_PARAM_NUMHINT("static_key_cardinality", static_key_cardinality,
+            3, (int) table_share->keys, spider_set_ll_value);
+          error_num = connect_string_parse.print_param_error();
+          goto error;
+        case 26:
+          SPIDER_PARAM_INT_WITH_MAX(
+            "semi_table_lock_connection", semi_table_lock_conn, 0, 1);
+          error_num = connect_string_parse.print_param_error();
+          goto error;
+        case 32:
+          SPIDER_PARAM_LONG_LIST_WITH_MAX("monitoring_binlog_pos_at_failing",
+            monitoring_binlog_pos_at_failing, 0, 2);
+          error_num = connect_string_parse.print_param_error();
+          goto error;
+        default:
+          error_num = connect_string_parse.print_param_error();
+          goto error;
+      }
+
+      /* Verify that the remainder of the parameter value is whitespace */
+      if ((error_num = connect_string_parse.has_extra_parameter_values()))
+          goto error;
+    }
+  }
+
+  /* check all_link_count */
+  share->all_link_count = 1;
+  if (share->all_link_count < share->server_names_length)
+    share->all_link_count = share->server_names_length;
+  if (share->all_link_count < share->tgt_table_names_length)
+    share->all_link_count = share->tgt_table_names_length;
+  if (share->all_link_count < share->tgt_dbs_length)
+    share->all_link_count = share->tgt_dbs_length;
+  if (share->all_link_count < share->tgt_hosts_length)
+    share->all_link_count = share->tgt_hosts_length;
+  if (share->all_link_count < share->tgt_usernames_length)
+    share->all_link_count = share->tgt_usernames_length;
+  if (share->all_link_count < share->tgt_passwords_length)
+    share->all_link_count = share->tgt_passwords_length;
+  if (share->all_link_count < share->tgt_sockets_length)
+    share->all_link_count = share->tgt_sockets_length;
+  if (share->all_link_count < share->tgt_wrappers_length)
+    share->all_link_count = share->tgt_wrappers_length;
+  if (share->all_link_count < share->tgt_ssl_cas_length)
+    share->all_link_count = share->tgt_ssl_cas_length;
+  if (share->all_link_count < share->tgt_ssl_capaths_length)
+    share->all_link_count = share->tgt_ssl_capaths_length;
+  if (share->all_link_count < share->tgt_ssl_certs_length)
+    share->all_link_count = share->tgt_ssl_certs_length;
+  if (share->all_link_count < share->tgt_ssl_ciphers_length)
+    share->all_link_count = share->tgt_ssl_ciphers_length;
+  if (share->all_link_count < share->tgt_ssl_keys_length)
+    share->all_link_count = share->tgt_ssl_keys_length;
+  if (share->all_link_count < share->tgt_default_files_length)
+    share->all_link_count = share->tgt_default_files_length;
+  if (share->all_link_count < share->tgt_default_groups_length)
+    share->all_link_count = share->tgt_default_groups_length;
+  if (share->all_link_count < share->tgt_dsns_length)
+    share->all_link_count = share->tgt_dsns_length;
+  if (share->all_link_count < share->tgt_pk_names_length)
+    share->all_link_count = share->tgt_pk_names_length;
+  if (share->all_link_count < share->tgt_sequence_names_length)
+    share->all_link_count = share->tgt_sequence_names_length;
+  if (share->all_link_count < share->static_link_ids_length)
+    share->all_link_count = share->static_link_ids_length;
+  if (share->all_link_count < share->tgt_ports_length)
+    share->all_link_count = share->tgt_ports_length;
+  if (share->all_link_count < share->tgt_ssl_vscs_length)
+    share->all_link_count = share->tgt_ssl_vscs_length;
+  if (share->all_link_count < share->link_statuses_length)
+    share->all_link_count = share->link_statuses_length;
+  if (share->all_link_count < share->monitoring_binlog_pos_at_failing_length)
+    share->all_link_count = share->monitoring_binlog_pos_at_failing_length;
+  if (share->all_link_count < share->monitoring_flag_length)
+    share->all_link_count = share->monitoring_flag_length;
+  if (share->all_link_count < share->monitoring_kind_length)
+    share->all_link_count = share->monitoring_kind_length;
+  if (share->all_link_count < share->monitoring_limit_length)
+    share->all_link_count = share->monitoring_limit_length;
+  if (share->all_link_count < share->monitoring_sid_length)
+    share->all_link_count = share->monitoring_sid_length;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  if (share->all_link_count < share->monitoring_bg_flag_length)
+    share->all_link_count = share->monitoring_bg_flag_length;
+  if (share->all_link_count < share->monitoring_bg_kind_length)
+    share->all_link_count = share->monitoring_bg_kind_length;
+  if (share->all_link_count < share->monitoring_bg_interval_length)
+    share->all_link_count = share->monitoring_bg_interval_length;
+#endif
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (share->all_link_count < share->use_hs_reads_length)
+    share->all_link_count = share->use_hs_reads_length;
+  if (share->all_link_count < share->use_hs_writes_length)
+    share->all_link_count = share->use_hs_writes_length;
+  if (share->all_link_count < share->hs_read_ports_length)
+    share->all_link_count = share->hs_read_ports_length;
+  if (share->all_link_count < share->hs_write_ports_length)
+    share->all_link_count = share->hs_write_ports_length;
+  if (share->all_link_count < share->hs_read_socks_length)
+    share->all_link_count = share->hs_read_socks_length;
+  if (share->all_link_count < share->hs_write_socks_length)
+    share->all_link_count = share->hs_write_socks_length;
+  if (share->all_link_count < share->hs_write_to_reads_length)
+    share->all_link_count = share->hs_write_to_reads_length;
+#endif
+  if (share->all_link_count < share->use_handlers_length)
+    share->all_link_count = share->use_handlers_length;
+  if (share->all_link_count < share->connect_timeouts_length)
+    share->all_link_count = share->connect_timeouts_length;
+  if (share->all_link_count < share->net_read_timeouts_length)
+    share->all_link_count = share->net_read_timeouts_length;
+  if (share->all_link_count < share->net_write_timeouts_length)
+    share->all_link_count = share->net_write_timeouts_length;
+  if (share->all_link_count < share->access_balances_length)
+    share->all_link_count = share->access_balances_length;
+  if (share->all_link_count < share->bka_table_name_types_length)
+    share->all_link_count = share->bka_table_name_types_length;
+  if (share->all_link_count < share->strict_group_bys_length)
+    share->all_link_count = share->strict_group_bys_length;
+  if ((error_num = spider_increase_string_list(
+    &share->server_names,
+    &share->server_names_lengths,
+    &share->server_names_length,
+    &share->server_names_charlen,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_string_list(
+    &share->tgt_table_names,
+    &share->tgt_table_names_lengths,
+    &share->tgt_table_names_length,
+    &share->tgt_table_names_charlen,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_string_list(
+    &share->tgt_dbs,
+    &share->tgt_dbs_lengths,
+    &share->tgt_dbs_length,
+    &share->tgt_dbs_charlen,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_string_list(
+    &share->tgt_hosts,
+    &share->tgt_hosts_lengths,
+    &share->tgt_hosts_length,
+    &share->tgt_hosts_charlen,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_string_list(
+    &share->tgt_usernames,
+    &share->tgt_usernames_lengths,
+    &share->tgt_usernames_length,
+    &share->tgt_usernames_charlen,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_string_list(
+    &share->tgt_passwords,
+    &share->tgt_passwords_lengths,
+    &share->tgt_passwords_length,
+    &share->tgt_passwords_charlen,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_string_list(
+    &share->tgt_sockets,
+    &share->tgt_sockets_lengths,
+    &share->tgt_sockets_length,
+    &share->tgt_sockets_charlen,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_string_list(
+    &share->tgt_wrappers,
+    &share->tgt_wrappers_lengths,
+    &share->tgt_wrappers_length,
+    &share->tgt_wrappers_charlen,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_string_list(
+    &share->tgt_ssl_cas,
+    &share->tgt_ssl_cas_lengths,
+    &share->tgt_ssl_cas_length,
+    &share->tgt_ssl_cas_charlen,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_string_list(
+    &share->tgt_ssl_capaths,
+    &share->tgt_ssl_capaths_lengths,
+    &share->tgt_ssl_capaths_length,
+    &share->tgt_ssl_capaths_charlen,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_string_list(
+    &share->tgt_ssl_certs,
+    &share->tgt_ssl_certs_lengths,
+    &share->tgt_ssl_certs_length,
+    &share->tgt_ssl_certs_charlen,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_string_list(
+    &share->tgt_ssl_ciphers,
+    &share->tgt_ssl_ciphers_lengths,
+    &share->tgt_ssl_ciphers_length,
+    &share->tgt_ssl_ciphers_charlen,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_string_list(
+    &share->tgt_ssl_keys,
+    &share->tgt_ssl_keys_lengths,
+    &share->tgt_ssl_keys_length,
+    &share->tgt_ssl_keys_charlen,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_string_list(
+    &share->tgt_default_files,
+    &share->tgt_default_files_lengths,
+    &share->tgt_default_files_length,
+    &share->tgt_default_files_charlen,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_string_list(
+    &share->tgt_default_groups,
+    &share->tgt_default_groups_lengths,
+    &share->tgt_default_groups_length,
+    &share->tgt_default_groups_charlen,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_string_list(
+    &share->tgt_dsns,
+    &share->tgt_dsns_lengths,
+    &share->tgt_dsns_length,
+    &share->tgt_dsns_charlen,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_string_list(
+    &share->tgt_pk_names,
+    &share->tgt_pk_names_lengths,
+    &share->tgt_pk_names_length,
+    &share->tgt_pk_names_charlen,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_string_list(
+    &share->tgt_sequence_names,
+    &share->tgt_sequence_names_lengths,
+    &share->tgt_sequence_names_length,
+    &share->tgt_sequence_names_charlen,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_null_string_list(
+    &share->static_link_ids,
+    &share->static_link_ids_lengths,
+    &share->static_link_ids_length,
+    &share->static_link_ids_charlen,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_long_list(
+    &share->tgt_ports,
+    &share->tgt_ports_length,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_long_list(
+    &share->tgt_ssl_vscs,
+    &share->tgt_ssl_vscs_length,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_long_list(
+    &share->link_statuses,
+    &share->link_statuses_length,
+    share->all_link_count)))
+    goto error;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  if ((error_num = spider_increase_long_list(
+    &share->monitoring_bg_flag,
+    &share->monitoring_bg_flag_length,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_long_list(
+    &share->monitoring_bg_kind,
+    &share->monitoring_bg_kind_length,
+    share->all_link_count)))
+    goto error;
+#endif
+  if ((error_num = spider_increase_long_list(
+    &share->monitoring_binlog_pos_at_failing,
+    &share->monitoring_binlog_pos_at_failing_length,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_long_list(
+    &share->monitoring_flag,
+    &share->monitoring_flag_length,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_long_list(
+    &share->monitoring_kind,
+    &share->monitoring_kind_length,
+    share->all_link_count)))
+    goto error;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  if ((error_num = spider_increase_longlong_list(
+    &share->monitoring_bg_interval,
+    &share->monitoring_bg_interval_length,
+    share->all_link_count)))
+    goto error;
+#endif
+  if ((error_num = spider_increase_longlong_list(
+    &share->monitoring_limit,
+    &share->monitoring_limit_length,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_longlong_list(
+    &share->monitoring_sid,
+    &share->monitoring_sid_length,
+    share->all_link_count)))
+    goto error;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if ((error_num = spider_increase_long_list(
+    &share->use_hs_reads,
+    &share->use_hs_reads_length,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_long_list(
+    &share->use_hs_writes,
+    &share->use_hs_writes_length,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_long_list(
+    &share->hs_read_ports,
+    &share->hs_read_ports_length,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_long_list(
+    &share->hs_write_ports,
+    &share->hs_write_ports_length,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_string_list(
+    &share->hs_read_socks,
+    &share->hs_read_socks_lengths,
+    &share->hs_read_socks_length,
+    &share->hs_read_socks_charlen,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_string_list(
+    &share->hs_write_socks,
+    &share->hs_write_socks_lengths,
+    &share->hs_write_socks_length,
+    &share->hs_write_socks_charlen,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_long_list(
+    &share->hs_write_to_reads,
+    &share->hs_write_to_reads_length,
+    share->all_link_count)))
+    goto error;
+#endif
+  if ((error_num = spider_increase_long_list(
+    &share->use_handlers,
+    &share->use_handlers_length,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_long_list(
+    &share->connect_timeouts,
+    &share->connect_timeouts_length,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_long_list(
+    &share->net_read_timeouts,
+    &share->net_read_timeouts_length,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_long_list(
+    &share->net_write_timeouts,
+    &share->net_write_timeouts_length,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_long_list(
+    &share->access_balances,
+    &share->access_balances_length,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_long_list(
+    &share->bka_table_name_types,
+    &share->bka_table_name_types_length,
+    share->all_link_count)))
+    goto error;
+  if ((error_num = spider_increase_long_list(
+    &share->strict_group_bys,
+    &share->strict_group_bys_length,
+    share->all_link_count)))
+    goto error;
+
+  /* copy for tables start */
+  share_alter = &share->alter_table;
+  share_alter->all_link_count = share->all_link_count;
+  if (!(share_alter->tmp_server_names = (char **)
+    spider_bulk_malloc(spider_current_trx, 43, MYF(MY_WME | MY_ZEROFILL),
+      &share_alter->tmp_server_names,
+      (uint) (sizeof(char *) * share->all_link_count),
+      &share_alter->tmp_tgt_table_names,
+      (uint) (sizeof(char *) * share->all_link_count),
+      &share_alter->tmp_tgt_dbs,
+      (uint) (sizeof(char *) * share->all_link_count),
+      &share_alter->tmp_tgt_hosts,
+      (uint) (sizeof(char *) * share->all_link_count),
+      &share_alter->tmp_tgt_usernames,
+      (uint) (sizeof(char *) * share->all_link_count),
+      &share_alter->tmp_tgt_passwords,
+      (uint) (sizeof(char *) * share->all_link_count),
+      &share_alter->tmp_tgt_sockets,
+      (uint) (sizeof(char *) * share->all_link_count),
+      &share_alter->tmp_tgt_wrappers,
+      (uint) (sizeof(char *) * share->all_link_count),
+      &share_alter->tmp_tgt_ssl_cas,
+      (uint) (sizeof(char *) * share->all_link_count),
+      &share_alter->tmp_tgt_ssl_capaths,
+      (uint) (sizeof(char *) * share->all_link_count),
+      &share_alter->tmp_tgt_ssl_certs,
+      (uint) (sizeof(char *) * share->all_link_count),
+      &share_alter->tmp_tgt_ssl_ciphers,
+      (uint) (sizeof(char *) * share->all_link_count),
+      &share_alter->tmp_tgt_ssl_keys,
+      (uint) (sizeof(char *) * share->all_link_count),
+      &share_alter->tmp_tgt_default_files,
+      (uint) (sizeof(char *) * share->all_link_count),
+      &share_alter->tmp_tgt_default_groups,
+      (uint) (sizeof(char *) * share->all_link_count),
+      &share_alter->tmp_tgt_dsns,
+      (uint) (sizeof(char *) * share->all_link_count),
+      &share_alter->tmp_static_link_ids,
+      (uint) (sizeof(char *) * share->all_link_count),
+      &share_alter->tmp_server_names_lengths,
+      (uint) (sizeof(uint *) * share->all_link_count),
+      &share_alter->tmp_tgt_table_names_lengths,
+      (uint) (sizeof(uint *) * share->all_link_count),
+      &share_alter->tmp_tgt_dbs_lengths,
+      (uint) (sizeof(uint *) * share->all_link_count),
+      &share_alter->tmp_tgt_hosts_lengths,
+      (uint) (sizeof(uint *) * share->all_link_count),
+      &share_alter->tmp_tgt_usernames_lengths,
+      (uint) (sizeof(uint *) * share->all_link_count),
+      &share_alter->tmp_tgt_passwords_lengths,
+      (uint) (sizeof(uint *) * share->all_link_count),
+      &share_alter->tmp_tgt_sockets_lengths,
+      (uint) (sizeof(uint *) * share->all_link_count),
+      &share_alter->tmp_tgt_wrappers_lengths,
+      (uint) (sizeof(uint *) * share->all_link_count),
+      &share_alter->tmp_tgt_ssl_cas_lengths,
+      (uint) (sizeof(uint *) * share->all_link_count),
+      &share_alter->tmp_tgt_ssl_capaths_lengths,
+      (uint) (sizeof(uint *) * share->all_link_count),
+      &share_alter->tmp_tgt_ssl_certs_lengths,
+      (uint) (sizeof(uint *) * share->all_link_count),
+      &share_alter->tmp_tgt_ssl_ciphers_lengths,
+      (uint) (sizeof(uint *) * share->all_link_count),
+      &share_alter->tmp_tgt_ssl_keys_lengths,
+      (uint) (sizeof(uint *) * share->all_link_count),
+      &share_alter->tmp_tgt_default_files_lengths,
+      (uint) (sizeof(uint *) * share->all_link_count),
+      &share_alter->tmp_tgt_default_groups_lengths,
+      (uint) (sizeof(uint *) * share->all_link_count),
+      &share_alter->tmp_tgt_dsns_lengths,
+      (uint) (sizeof(uint *) * share->all_link_count),
+      &share_alter->tmp_static_link_ids_lengths,
+      (uint) (sizeof(uint *) * share->all_link_count),
+      &share_alter->tmp_tgt_ports,
+      (uint) (sizeof(long) * share->all_link_count),
+      &share_alter->tmp_tgt_ssl_vscs,
+      (uint) (sizeof(long) * share->all_link_count),
+      &share_alter->tmp_monitoring_binlog_pos_at_failing,
+      (uint) (sizeof(long) * share->all_link_count),
+      &share_alter->tmp_link_statuses,
+      (uint) (sizeof(long) * share->all_link_count),
+      NullS))
+  ) {
+    error_num = HA_ERR_OUT_OF_MEM;
+    goto error;
+  }
+
+
+  memcpy(share_alter->tmp_server_names, share->server_names,
+    sizeof(char *) * share->all_link_count);
+  memcpy(share_alter->tmp_tgt_table_names, share->tgt_table_names,
+    sizeof(char *) * share->all_link_count);
+  memcpy(share_alter->tmp_tgt_dbs, share->tgt_dbs,
+    sizeof(char *) * share->all_link_count);
+  memcpy(share_alter->tmp_tgt_hosts, share->tgt_hosts,
+    sizeof(char *) * share->all_link_count);
+  memcpy(share_alter->tmp_tgt_usernames, share->tgt_usernames,
+    sizeof(char *) * share->all_link_count);
+  memcpy(share_alter->tmp_tgt_passwords, share->tgt_passwords,
+    sizeof(char *) * share->all_link_count);
+  memcpy(share_alter->tmp_tgt_sockets, share->tgt_sockets,
+    sizeof(char *) * share->all_link_count);
+  memcpy(share_alter->tmp_tgt_wrappers, share->tgt_wrappers,
+    sizeof(char *) * share->all_link_count);
+  memcpy(share_alter->tmp_tgt_ssl_cas, share->tgt_ssl_cas,
+    sizeof(char *) * share->all_link_count);
+  memcpy(share_alter->tmp_tgt_ssl_capaths, share->tgt_ssl_capaths,
+    sizeof(char *) * share->all_link_count);
+  memcpy(share_alter->tmp_tgt_ssl_certs, share->tgt_ssl_certs,
+    sizeof(char *) * share->all_link_count);
+  memcpy(share_alter->tmp_tgt_ssl_ciphers, share->tgt_ssl_ciphers,
+    sizeof(char *) * share->all_link_count);
+  memcpy(share_alter->tmp_tgt_ssl_keys, share->tgt_ssl_keys,
+    sizeof(char *) * share->all_link_count);
+  memcpy(share_alter->tmp_tgt_default_files, share->tgt_default_files,
+    sizeof(char *) * share->all_link_count);
+  memcpy(share_alter->tmp_tgt_default_groups, share->tgt_default_groups,
+    sizeof(char *) * share->all_link_count);
+  memcpy(share_alter->tmp_tgt_dsns, share->tgt_dsns,
+    sizeof(char *) * share->all_link_count);
+  memcpy(share_alter->tmp_static_link_ids, share->static_link_ids,
+    sizeof(char *) * share->all_link_count);
+
+  memcpy(share_alter->tmp_tgt_ports, share->tgt_ports,
+    sizeof(long) * share->all_link_count);
+  memcpy(share_alter->tmp_tgt_ssl_vscs, share->tgt_ssl_vscs,
+    sizeof(long) * share->all_link_count);
+  memcpy(share_alter->tmp_monitoring_binlog_pos_at_failing,
+    share->monitoring_binlog_pos_at_failing,
+    sizeof(long) * share->all_link_count);
+  memcpy(share_alter->tmp_link_statuses, share->link_statuses,
+    sizeof(long) * share->all_link_count);
+
+  memcpy(share_alter->tmp_server_names_lengths,
+    share->server_names_lengths,
+    sizeof(uint) * share->all_link_count);
+  memcpy(share_alter->tmp_tgt_table_names_lengths,
+    share->tgt_table_names_lengths,
+    sizeof(uint) * share->all_link_count);
+  memcpy(share_alter->tmp_tgt_dbs_lengths, share->tgt_dbs_lengths,
+    sizeof(uint) * share->all_link_count);
+  memcpy(share_alter->tmp_tgt_hosts_lengths, share->tgt_hosts_lengths,
+    sizeof(uint) * share->all_link_count);
+  memcpy(share_alter->tmp_tgt_usernames_lengths,
+    share->tgt_usernames_lengths,
+    sizeof(uint) * share->all_link_count);
+  memcpy(share_alter->tmp_tgt_passwords_lengths,
+    share->tgt_passwords_lengths,
+    sizeof(uint) * share->all_link_count);
+  memcpy(share_alter->tmp_tgt_sockets_lengths, share->tgt_sockets_lengths,
+    sizeof(uint) * share->all_link_count);
+  memcpy(share_alter->tmp_tgt_wrappers_lengths,
+    share->tgt_wrappers_lengths,
+    sizeof(uint) * share->all_link_count);
+  memcpy(share_alter->tmp_tgt_ssl_cas_lengths,
+    share->tgt_ssl_cas_lengths,
+    sizeof(uint) * share->all_link_count);
+  memcpy(share_alter->tmp_tgt_ssl_capaths_lengths,
+    share->tgt_ssl_capaths_lengths,
+    sizeof(uint) * share->all_link_count);
+  memcpy(share_alter->tmp_tgt_ssl_certs_lengths,
+    share->tgt_ssl_certs_lengths,
+    sizeof(uint) * share->all_link_count);
+  memcpy(share_alter->tmp_tgt_ssl_ciphers_lengths,
+    share->tgt_ssl_ciphers_lengths,
+    sizeof(uint) * share->all_link_count);
+  memcpy(share_alter->tmp_tgt_ssl_keys_lengths,
+    share->tgt_ssl_keys_lengths,
+    sizeof(uint) * share->all_link_count);
+  memcpy(share_alter->tmp_tgt_default_files_lengths,
+    share->tgt_default_files_lengths,
+    sizeof(uint) * share->all_link_count);
+  memcpy(share_alter->tmp_tgt_default_groups_lengths,
+    share->tgt_default_groups_lengths,
+    sizeof(uint) * share->all_link_count);
+  memcpy(share_alter->tmp_tgt_dsns_lengths,
+    share->tgt_dsns_lengths,
+    sizeof(uint) * share->all_link_count);
+  memcpy(share_alter->tmp_static_link_ids_lengths,
+    share->static_link_ids_lengths,
+    sizeof(uint) * share->all_link_count);
+
+  share_alter->tmp_server_names_charlen = share->server_names_charlen;
+  share_alter->tmp_tgt_table_names_charlen = share->tgt_table_names_charlen;
+  share_alter->tmp_tgt_dbs_charlen = share->tgt_dbs_charlen;
+  share_alter->tmp_tgt_hosts_charlen = share->tgt_hosts_charlen;
+  share_alter->tmp_tgt_usernames_charlen = share->tgt_usernames_charlen;
+  share_alter->tmp_tgt_passwords_charlen = share->tgt_passwords_charlen;
+  share_alter->tmp_tgt_sockets_charlen = share->tgt_sockets_charlen;
+  share_alter->tmp_tgt_wrappers_charlen = share->tgt_wrappers_charlen;
+  share_alter->tmp_tgt_ssl_cas_charlen = share->tgt_ssl_cas_charlen;
+  share_alter->tmp_tgt_ssl_capaths_charlen = share->tgt_ssl_capaths_charlen;
+  share_alter->tmp_tgt_ssl_certs_charlen = share->tgt_ssl_certs_charlen;
+  share_alter->tmp_tgt_ssl_ciphers_charlen = share->tgt_ssl_ciphers_charlen;
+  share_alter->tmp_tgt_ssl_keys_charlen = share->tgt_ssl_keys_charlen;
+  share_alter->tmp_tgt_default_files_charlen =
+    share->tgt_default_files_charlen;
+  share_alter->tmp_tgt_default_groups_charlen =
+    share->tgt_default_groups_charlen;
+  share_alter->tmp_tgt_dsns_charlen =
+    share->tgt_dsns_charlen;
+  share_alter->tmp_static_link_ids_charlen =
+    share->static_link_ids_charlen;
+
+  share_alter->tmp_server_names_length = share->server_names_length;
+  share_alter->tmp_tgt_table_names_length = share->tgt_table_names_length;
+  share_alter->tmp_tgt_dbs_length = share->tgt_dbs_length;
+  share_alter->tmp_tgt_hosts_length = share->tgt_hosts_length;
+  share_alter->tmp_tgt_usernames_length = share->tgt_usernames_length;
+  share_alter->tmp_tgt_passwords_length = share->tgt_passwords_length;
+  share_alter->tmp_tgt_sockets_length = share->tgt_sockets_length;
+  share_alter->tmp_tgt_wrappers_length = share->tgt_wrappers_length;
+  share_alter->tmp_tgt_ssl_cas_length = share->tgt_ssl_cas_length;
+  share_alter->tmp_tgt_ssl_capaths_length = share->tgt_ssl_capaths_length;
+  share_alter->tmp_tgt_ssl_certs_length = share->tgt_ssl_certs_length;
+  share_alter->tmp_tgt_ssl_ciphers_length = share->tgt_ssl_ciphers_length;
+  share_alter->tmp_tgt_ssl_keys_length = share->tgt_ssl_keys_length;
+  share_alter->tmp_tgt_default_files_length = share->tgt_default_files_length;
+  share_alter->tmp_tgt_default_groups_length =
+    share->tgt_default_groups_length;
+  share_alter->tmp_tgt_dsns_length =
+    share->tgt_dsns_length;
+  share_alter->tmp_static_link_ids_length =
+    share->static_link_ids_length;
+  share_alter->tmp_tgt_ports_length = share->tgt_ports_length;
+  share_alter->tmp_tgt_ssl_vscs_length = share->tgt_ssl_vscs_length;
+  share_alter->tmp_monitoring_binlog_pos_at_failing_length =
+    share->monitoring_binlog_pos_at_failing_length;
+  share_alter->tmp_link_statuses_length = share->link_statuses_length;
+  /* copy for tables end */
+
+  if ((error_num = spider_set_connect_info_default(
+    share,
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+    part_elem,
+    sub_elem,
+#endif
+    table_share
+  )))
+    goto error;
+
+  if (create_table)
+  {
+    for (roop_count = 0; roop_count < (int) share->all_link_count;
+      roop_count++)
+    {
+      int roop_count2;
+      for (roop_count2 = 0; roop_count2 < SPIDER_DBTON_SIZE; roop_count2++)
+      {
+        if (
+          spider_dbton[roop_count2].wrapper &&
+          !strcmp(share->tgt_wrappers[roop_count],
+            spider_dbton[roop_count2].wrapper)
+        ) {
+          break;
+        }
+      }
+      if (roop_count2 == SPIDER_DBTON_SIZE)
+      {
+        DBUG_PRINT("info",("spider err tgt_wrappers[%d]=%s", roop_count,
+          share->tgt_wrappers[roop_count]));
+        error_num = ER_SPIDER_INVALID_CONNECT_INFO_NUM;
+        my_printf_error(error_num, ER_SPIDER_INVALID_CONNECT_INFO_STR,
+          MYF(0), share->tgt_wrappers[roop_count]);
+        goto error;
+      }
+
+      DBUG_PRINT("info",
+        ("spider server_names_lengths[%d] = %u", roop_count,
+         share->server_names_lengths[roop_count]));
+      if (share->server_names_lengths[roop_count] > SPIDER_CONNECT_INFO_MAX_LEN)
+      {
+        error_num = ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_NUM;
+        my_printf_error(error_num, ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_STR,
+          MYF(0), share->server_names[roop_count], "server");
+        goto error;
+      }
+
+      DBUG_PRINT("info",
+        ("spider tgt_table_names_lengths[%d] = %u", roop_count,
+        share->tgt_table_names_lengths[roop_count]));
+      if (share->tgt_table_names_lengths[roop_count] >
+        SPIDER_CONNECT_INFO_MAX_LEN)
+      {
+        error_num = ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_NUM;
+        my_printf_error(error_num, ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_STR,
+          MYF(0), share->tgt_table_names[roop_count], "table");
+        goto error;
+      }
+
+      DBUG_PRINT("info",
+        ("spider tgt_dbs_lengths[%d] = %u", roop_count,
+        share->tgt_dbs_lengths[roop_count]));
+      if (share->tgt_dbs_lengths[roop_count] > SPIDER_CONNECT_INFO_MAX_LEN)
+      {
+        error_num = ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_NUM;
+        my_printf_error(error_num, ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_STR,
+          MYF(0), share->tgt_dbs[roop_count], "database");
+        goto error;
+      }
+
+      DBUG_PRINT("info",
+        ("spider tgt_hosts_lengths[%d] = %u", roop_count,
+        share->tgt_hosts_lengths[roop_count]));
+      if (share->tgt_hosts_lengths[roop_count] > SPIDER_CONNECT_INFO_MAX_LEN)
+      {
+        error_num = ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_NUM;
+        my_printf_error(error_num, ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_STR,
+          MYF(0), share->tgt_hosts[roop_count], "host");
+        goto error;
+      }
+
+      DBUG_PRINT("info",
+        ("spider tgt_usernames_lengths[%d] = %u", roop_count,
+        share->tgt_usernames_lengths[roop_count]));
+      if (share->tgt_usernames_lengths[roop_count] >
+        SPIDER_CONNECT_INFO_MAX_LEN)
+      {
+        error_num = ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_NUM;
+        my_printf_error(error_num, ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_STR,
+          MYF(0), share->tgt_usernames[roop_count], "user");
+        goto error;
+      }
+
+      DBUG_PRINT("info",
+        ("spider tgt_passwords_lengths[%d] = %u", roop_count,
+        share->tgt_passwords_lengths[roop_count]));
+      if (share->tgt_passwords_lengths[roop_count] >
+        SPIDER_CONNECT_INFO_MAX_LEN)
+      {
+        error_num = ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_NUM;
+        my_printf_error(error_num, ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_STR,
+          MYF(0), share->tgt_passwords[roop_count], "password");
+        goto error;
+      }
+
+      DBUG_PRINT("info",
+        ("spider tgt_sockets_lengths[%d] = %u", roop_count,
+        share->tgt_sockets_lengths[roop_count]));
+      if (share->tgt_sockets_lengths[roop_count] >
+        SPIDER_CONNECT_INFO_PATH_MAX_LEN)
+      {
+        error_num = ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_NUM;
+        my_printf_error(error_num, ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_STR,
+          MYF(0), share->tgt_sockets[roop_count], "socket");
+        goto error;
+      }
+
+      DBUG_PRINT("info",
+        ("spider tgt_wrappers_lengths[%d] = %u", roop_count,
+        share->tgt_wrappers_lengths[roop_count]));
+      if (share->tgt_wrappers_lengths[roop_count] >
+        SPIDER_CONNECT_INFO_MAX_LEN)
+      {
+        error_num = ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_NUM;
+        my_printf_error(error_num, ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_STR,
+          MYF(0), share->tgt_wrappers[roop_count], "wrapper");
+        goto error;
+      }
+
+      DBUG_PRINT("info",
+        ("spider tgt_ssl_cas_lengths[%d] = %u", roop_count,
+        share->tgt_ssl_cas_lengths[roop_count]));
+      if (share->tgt_ssl_cas_lengths[roop_count] >
+        SPIDER_CONNECT_INFO_PATH_MAX_LEN)
+      {
+        error_num = ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_NUM;
+        my_printf_error(error_num, ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_STR,
+          MYF(0), share->tgt_ssl_cas[roop_count], "ssl_ca");
+        goto error;
+      }
+
+      DBUG_PRINT("info",
+        ("spider tgt_ssl_capaths_lengths[%d] = %u", roop_count,
+        share->tgt_ssl_capaths_lengths[roop_count]));
+      if (share->tgt_ssl_capaths_lengths[roop_count] >
+        SPIDER_CONNECT_INFO_PATH_MAX_LEN)
+      {
+        error_num = ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_NUM;
+        my_printf_error(error_num, ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_STR,
+          MYF(0), share->tgt_ssl_capaths[roop_count], "ssl_capath");
+        goto error;
+      }
+
+      DBUG_PRINT("info",
+        ("spider tgt_ssl_certs_lengths[%d] = %u", roop_count,
+        share->tgt_ssl_certs_lengths[roop_count]));
+      if (share->tgt_ssl_certs_lengths[roop_count] >
+        SPIDER_CONNECT_INFO_PATH_MAX_LEN)
+      {
+        error_num = ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_NUM;
+        my_printf_error(error_num, ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_STR,
+          MYF(0), share->tgt_ssl_certs[roop_count], "ssl_cert");
+        goto error;
+      }
+
+      DBUG_PRINT("info",
+        ("spider tgt_ssl_ciphers_lengths[%d] = %u", roop_count,
+        share->tgt_ssl_ciphers_lengths[roop_count]));
+      if (share->tgt_ssl_ciphers_lengths[roop_count] >
+        SPIDER_CONNECT_INFO_MAX_LEN)
+      {
+        error_num = ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_NUM;
+        my_printf_error(error_num, ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_STR,
+          MYF(0), share->tgt_ssl_ciphers[roop_count], "ssl_cipher");
+        goto error;
+      }
+
+      DBUG_PRINT("info",
+        ("spider tgt_ssl_keys_lengths[%d] = %u", roop_count,
+        share->tgt_ssl_keys_lengths[roop_count]));
+      if (share->tgt_ssl_keys_lengths[roop_count] >
+        SPIDER_CONNECT_INFO_PATH_MAX_LEN)
+      {
+        error_num = ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_NUM;
+        my_printf_error(error_num, ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_STR,
+          MYF(0), share->tgt_ssl_keys[roop_count], "ssl_key");
+        goto error;
+      }
+
+      DBUG_PRINT("info",
+        ("spider tgt_default_files_lengths[%d] = %u", roop_count,
+        share->tgt_default_files_lengths[roop_count]));
+      if (share->tgt_default_files_lengths[roop_count] >
+        SPIDER_CONNECT_INFO_PATH_MAX_LEN)
+      {
+        error_num = ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_NUM;
+        my_printf_error(error_num, ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_STR,
+          MYF(0), share->tgt_default_files[roop_count], "default_file");
+        goto error;
+      }
+
+      DBUG_PRINT("info",
+        ("spider tgt_default_groups_lengths[%d] = %u", roop_count,
+        share->tgt_default_groups_lengths[roop_count]));
+      if (share->tgt_default_groups_lengths[roop_count] >
+        SPIDER_CONNECT_INFO_MAX_LEN)
+      {
+        error_num = ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_NUM;
+        my_printf_error(error_num, ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_STR,
+          MYF(0), share->tgt_default_groups[roop_count], "default_group");
+        goto error;
+      }
+
+      DBUG_PRINT("info",
+        ("spider tgt_dsns_lengths[%d] = %u", roop_count,
+        share->tgt_dsns_lengths[roop_count]));
+      if (share->tgt_dsns_lengths[roop_count] >
+        SPIDER_CONNECT_INFO_MAX_LEN)
+      {
+        error_num = ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_NUM;
+        my_printf_error(error_num, ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_STR,
+          MYF(0), share->tgt_dsns[roop_count], "default_group");
+        goto error;
+      }
+
+      DBUG_PRINT("info",
+        ("spider tgt_pk_names_lengths[%d] = %u", roop_count,
+        share->tgt_pk_names_lengths[roop_count]));
+      if (share->tgt_pk_names_lengths[roop_count] >
+        SPIDER_CONNECT_INFO_MAX_LEN)
+      {
+        error_num = ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_NUM;
+        my_printf_error(error_num, ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_STR,
+          MYF(0), share->tgt_pk_names[roop_count], "pk_name");
+        goto error;
+      }
+
+      DBUG_PRINT("info",
+        ("spider tgt_sequence_names_lengths[%d] = %u", roop_count,
+        share->tgt_sequence_names_lengths[roop_count]));
+      if (share->tgt_sequence_names_lengths[roop_count] >
+        SPIDER_CONNECT_INFO_MAX_LEN)
+      {
+        error_num = ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_NUM;
+        my_printf_error(error_num, ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_STR,
+          MYF(0), share->tgt_sequence_names[roop_count], "sequence_name");
+        goto error;
+      }
+
+      DBUG_PRINT("info",
+        ("spider static_link_ids_lengths[%d] = %u", roop_count,
+        share->static_link_ids_lengths[roop_count]));
+      if (share->static_link_ids_lengths[roop_count] >
+        SPIDER_CONNECT_INFO_MAX_LEN)
+      {
+        error_num = ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_NUM;
+        my_printf_error(error_num, ER_SPIDER_INVALID_CONNECT_INFO_TOO_LONG_STR,
+          MYF(0), share->static_link_ids[roop_count], "static_link_id");
+        goto error;
+      }
+      if (share->static_link_ids[roop_count])
+      {
+        if (
+          share->static_link_ids_lengths[roop_count] > 0 &&
+          share->static_link_ids[roop_count][0] >= '0' &&
+          share->static_link_ids[roop_count][0] <= '9'
+        ) {
+          error_num = ER_SPIDER_INVALID_CONNECT_INFO_START_WITH_NUM_NUM;
+          my_printf_error(error_num,
+            ER_SPIDER_INVALID_CONNECT_INFO_START_WITH_NUM_STR,
+            MYF(0), share->static_link_ids[roop_count], "static_link_id");
+          goto error;
+        }
+        for (roop_count2 = roop_count + 1;
+          roop_count2 < (int) share->all_link_count;
+          roop_count2++)
+        {
+          if (
+            share->static_link_ids_lengths[roop_count] ==
+              share->static_link_ids_lengths[roop_count2] &&
+            !memcmp(share->static_link_ids[roop_count],
+              share->static_link_ids[roop_count2],
+              share->static_link_ids_lengths[roop_count])
+          ) {
+            error_num = ER_SPIDER_INVALID_CONNECT_INFO_SAME_NUM;
+            my_printf_error(error_num,
+              ER_SPIDER_INVALID_CONNECT_INFO_SAME_STR,
+              MYF(0), share->static_link_ids[roop_count],
+              "static_link_id");
+            goto error;
+          }
+        }
+      }
+    }
+  }
+
+  DBUG_PRINT("info", ("spider share->active_link_count = %d",
+    share->active_link_count));
+  share->link_count = (uint) share->active_link_count;
+  share_alter->link_count = share->link_count;
+  share->link_bitmap_size = (share->link_count + 7) / 8;
+
+  if (connect_string)
+    spider_free(spider_current_trx, connect_string, MYF(0));
+  DBUG_RETURN(0);
+
+error:
+  if (connect_string)
+    spider_free(spider_current_trx, connect_string, MYF(0));
+error_alloc_conn_string:
+  DBUG_RETURN(error_num);
+}
+
+int spider_set_connect_info_default(
+  SPIDER_SHARE *share,
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  partition_element *part_elem,
+  partition_element *sub_elem,
+#endif
+  TABLE_SHARE *table_share
+) {
+  bool check_socket;
+  bool check_database;
+  bool socket_has_default_value;
+  bool database_has_default_value;
+  int error_num, roop_count, roop_count2;
+  DBUG_ENTER("spider_set_connect_info_default");
+  for (roop_count = 0; roop_count < (int) share->all_link_count; roop_count++)
+  {
+    if (share->server_names[roop_count])
+    {
+      if ((error_num = spider_get_server(share, roop_count)))
+        DBUG_RETURN(error_num);
+    }
+
+    if (
+      !share->tgt_sockets[roop_count] &&
+      (
+        !share->tgt_hosts[roop_count] ||
+        !strcmp(share->tgt_hosts[roop_count], my_localhost)
+      )
+    ) {
+      check_socket = TRUE;
+    } else {
+      check_socket = FALSE;
+    }
+    if (!share->tgt_dbs[roop_count] && table_share)
+    {
+      check_database = TRUE;
+    } else {
+      check_database = FALSE;
+    }
+    if (check_socket || check_database)
+    {
+      socket_has_default_value = check_socket;
+      database_has_default_value = check_database;
+      if (share->tgt_wrappers[roop_count])
+      {
+        for (roop_count2 = 0; roop_count2 < SPIDER_DBTON_SIZE; roop_count2++)
+        {
+          DBUG_PRINT("info",("spider share->tgt_wrappers[%d]=%s", roop_count,
+            share->tgt_wrappers[roop_count]));
+          DBUG_PRINT("info",("spider spider_dbton[%d].wrapper=%s", roop_count2,
+            spider_dbton[roop_count2].wrapper ?
+              spider_dbton[roop_count2].wrapper : "NULL"));
+          if (
+            spider_dbton[roop_count2].wrapper &&
+            !strcmp(share->tgt_wrappers[roop_count],
+              spider_dbton[roop_count2].wrapper)
+          ) {
+            if (spider_dbton[roop_count2].db_access_type ==
+              SPIDER_DB_ACCESS_TYPE_SQL)
+            {
+              if (check_socket)
+              {
+                socket_has_default_value = spider_dbton[roop_count2].
+                  db_util->socket_has_default_value();
+              }
+              if (check_database)
+              {
+                database_has_default_value = spider_dbton[roop_count2].
+                  db_util->database_has_default_value();
+              }
+              break;
+            }
+          }
+        }
+      }
+    } else {
+      socket_has_default_value = FALSE;
+      database_has_default_value = FALSE;
+    }
+
+    if (!share->tgt_wrappers[roop_count])
+    {
+      DBUG_PRINT("info",("spider create default tgt_wrappers"));
+      share->tgt_wrappers_lengths[roop_count] = SPIDER_DB_WRAPPER_LEN;
+      if (
+        !(share->tgt_wrappers[roop_count] = spider_create_string(
+          SPIDER_DB_WRAPPER_STR,
+          share->tgt_wrappers_lengths[roop_count]))
+      ) {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+    }
+
+    if (!share->tgt_hosts[roop_count])
+    {
+      DBUG_PRINT("info",("spider create default tgt_hosts"));
+      share->tgt_hosts_lengths[roop_count] = strlen(my_localhost);
+      if (
+        !(share->tgt_hosts[roop_count] = spider_create_string(
+          my_localhost,
+          share->tgt_hosts_lengths[roop_count]))
+      ) {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+    }
+
+    if (database_has_default_value)
+    {
+      DBUG_PRINT("info",("spider create default tgt_dbs"));
+      share->tgt_dbs_lengths[roop_count] = table_share->db.length;
+      if (
+        !(share->tgt_dbs[roop_count] = spider_create_string(
+          table_share->db.str,
+          table_share->db.length))
+      ) {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+    }
+
+    if (!share->tgt_table_names[roop_count] && table_share)
+    {
+      DBUG_PRINT("info",("spider create default tgt_table_names"));
+      share->tgt_table_names_lengths[roop_count] =
+        table_share->table_name.length;
+      if (
+        !(share->tgt_table_names[roop_count] = spider_create_table_name_string(
+          table_share->table_name.str,
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+          (part_elem ? part_elem->partition_name : NULL),
+          (sub_elem ? sub_elem->partition_name : NULL)
+#else
+          NULL,
+          NULL
+#endif
+        ))
+      ) {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+    }
+
+    if (
+      !share->tgt_default_files[roop_count] &&
+      share->tgt_default_groups[roop_count] &&
+      (*spd_defaults_file || *spd_defaults_extra_file)
+    ) {
+      DBUG_PRINT("info",("spider create default tgt_default_files"));
+      if (*spd_defaults_extra_file)
+      {
+        share->tgt_default_files_lengths[roop_count] =
+          strlen(*spd_defaults_extra_file);
+        if (
+          !(share->tgt_default_files[roop_count] = spider_create_string(
+            *spd_defaults_extra_file,
+            share->tgt_default_files_lengths[roop_count]))
+        ) {
+          my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+      } else {
+        share->tgt_default_files_lengths[roop_count] =
+          strlen(*spd_defaults_file);
+        if (
+          !(share->tgt_default_files[roop_count] = spider_create_string(
+            *spd_defaults_file,
+            share->tgt_default_files_lengths[roop_count]))
+        ) {
+          my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+      }
+    }
+
+    if (!share->tgt_pk_names[roop_count])
+    {
+      DBUG_PRINT("info",("spider create default tgt_pk_names"));
+      share->tgt_pk_names_lengths[roop_count] = SPIDER_DB_PK_NAME_LEN;
+      if (
+        !(share->tgt_pk_names[roop_count] = spider_create_string(
+          SPIDER_DB_PK_NAME_STR,
+          share->tgt_pk_names_lengths[roop_count]))
+      ) {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+    }
+
+    if (!share->tgt_sequence_names[roop_count])
+    {
+      DBUG_PRINT("info",("spider create default tgt_sequence_names"));
+      share->tgt_sequence_names_lengths[roop_count] =
+        SPIDER_DB_SEQUENCE_NAME_LEN;
+      if (
+        !(share->tgt_sequence_names[roop_count] = spider_create_string(
+          SPIDER_DB_SEQUENCE_NAME_STR,
+          share->tgt_sequence_names_lengths[roop_count]))
+      ) {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+    }
+
+/*
+    if (!share->static_link_ids[roop_count])
+    {
+      DBUG_PRINT("info",("spider create default static_link_ids"));
+      share->static_link_ids_lengths[roop_count] =
+        SPIDER_DB_STATIC_LINK_ID_LEN;
+      if (
+        !(share->static_link_ids[roop_count] = spider_create_string(
+          SPIDER_DB_STATIC_LINK_ID_STR,
+          share->static_link_ids_lengths[roop_count]))
+      ) {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+    }
+*/
+
+    if (share->tgt_ports[roop_count] == -1)
+    {
+      share->tgt_ports[roop_count] = MYSQL_PORT;
+    } else if (share->tgt_ports[roop_count] < 0)
+    {
+      share->tgt_ports[roop_count] = 0;
+    } else if (share->tgt_ports[roop_count] > 65535)
+    {
+      share->tgt_ports[roop_count] = 65535;
+    }
+
+    if (share->tgt_ssl_vscs[roop_count] == -1)
+      share->tgt_ssl_vscs[roop_count] = 0;
+
+    if (socket_has_default_value)
+    {
+      DBUG_PRINT("info",("spider create default tgt_sockets"));
+      share->tgt_sockets_lengths[roop_count] =
+        strlen((char *) MYSQL_UNIX_ADDR);
+      if (
+        !(share->tgt_sockets[roop_count] = spider_create_string(
+          (char *) MYSQL_UNIX_ADDR,
+          share->tgt_sockets_lengths[roop_count]))
+      ) {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+    }
+
+    if (share->link_statuses[roop_count] == -1)
+      share->link_statuses[roop_count] = SPIDER_LINK_STATUS_NO_CHANGE;
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+    if (share->monitoring_bg_flag[roop_count] == -1)
+      share->monitoring_bg_flag[roop_count] = 0;
+    if (share->monitoring_bg_kind[roop_count] == -1)
+      share->monitoring_bg_kind[roop_count] = 0;
+#endif
+    if (share->monitoring_binlog_pos_at_failing[roop_count] == -1)
+      share->monitoring_binlog_pos_at_failing[roop_count] = 0;
+    if (share->monitoring_flag[roop_count] == -1)
+      share->monitoring_flag[roop_count] = 0;
+    if (share->monitoring_kind[roop_count] == -1)
+      share->monitoring_kind[roop_count] = 0;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+    if (share->monitoring_bg_interval[roop_count] == -1)
+      share->monitoring_bg_interval[roop_count] = 10000000;
+#endif
+    if (share->monitoring_limit[roop_count] == -1)
+      share->monitoring_limit[roop_count] = 1;
+    if (share->monitoring_sid[roop_count] == -1)
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100002
+      share->monitoring_sid[roop_count] = global_system_variables.server_id;
+#else
+      share->monitoring_sid[roop_count] = current_thd->server_id;
+#endif
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    if (share->use_hs_reads[roop_count] == -1)
+      share->use_hs_reads[roop_count] = 0;
+    if (share->use_hs_writes[roop_count] == -1)
+      share->use_hs_writes[roop_count] = 0;
+    if (share->hs_read_ports[roop_count] == -1)
+    {
+      share->hs_read_ports[roop_count] = 9998;
+    } else if (share->hs_read_ports[roop_count] < 0)
+    {
+      share->hs_read_ports[roop_count] = 0;
+    } else if (share->hs_read_ports[roop_count] > 65535)
+    {
+      share->hs_read_ports[roop_count] = 65535;
+    }
+    if (share->hs_write_ports[roop_count] == -1)
+    {
+      share->hs_write_ports[roop_count] = 9999;
+    } else if (share->hs_write_ports[roop_count] < 0)
+    {
+      share->hs_write_ports[roop_count] = 0;
+    } else if (share->hs_write_ports[roop_count] > 65535)
+    {
+      share->hs_write_ports[roop_count] = 65535;
+    }
+    if (share->hs_write_to_reads[roop_count] == -1)
+    {
+      share->hs_write_to_reads[roop_count] = 1;
+    } else if (share->hs_write_to_reads[roop_count] < 0)
+    {
+      share->hs_write_to_reads[roop_count] = 0;
+    } else if (share->hs_write_to_reads[roop_count] > 1)
+    {
+      share->hs_write_to_reads[roop_count] = 1;
+    }
+#endif
+    if (share->use_handlers[roop_count] == -1)
+      share->use_handlers[roop_count] = 0;
+    if (share->connect_timeouts[roop_count] == -1)
+      share->connect_timeouts[roop_count] = 6;
+    if (share->net_read_timeouts[roop_count] == -1)
+      share->net_read_timeouts[roop_count] = 600;
+    if (share->net_write_timeouts[roop_count] == -1)
+      share->net_write_timeouts[roop_count] = 600;
+    if (share->access_balances[roop_count] == -1)
+      share->access_balances[roop_count] = 100;
+    if (share->bka_table_name_types[roop_count] == -1)
+      share->bka_table_name_types[roop_count] = 0;
+    if (share->strict_group_bys[roop_count] == -1)
+      share->strict_group_bys[roop_count] = 1;
+  }
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  if (share->sts_bg_mode == -1)
+    share->sts_bg_mode = 2;
+#endif
+  if (share->sts_interval == -1)
+    share->sts_interval = 10;
+  if (share->sts_mode == -1)
+    share->sts_mode = 1;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  if (share->sts_sync == -1)
+    share->sts_sync = 0;
+#endif
+  if (share->store_last_sts == -1)
+    share->store_last_sts = 1;
+  if (share->load_sts_at_startup == -1)
+    share->load_sts_at_startup = 1;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  if (share->crd_bg_mode == -1)
+    share->crd_bg_mode = 2;
+#endif
+  if (share->crd_interval == -1)
+    share->crd_interval = 51;
+  if (share->crd_mode == -1)
+    share->crd_mode = 1;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  if (share->crd_sync == -1)
+    share->crd_sync = 0;
+#endif
+  if (share->store_last_crd == -1)
+    share->store_last_crd = 1;
+  if (share->load_crd_at_startup == -1)
+    share->load_crd_at_startup = 1;
+  if (share->crd_type == -1)
+    share->crd_type = 2;
+  if (share->crd_weight == -1)
+    share->crd_weight = 2;
+  if (share->internal_offset == -1)
+    share->internal_offset = 0;
+  if (share->internal_limit == -1)
+    share->internal_limit = 9223372036854775807LL;
+  if (share->split_read == -1)
+    share->split_read = 9223372036854775807LL;
+  if (share->semi_split_read == -1)
+    share->semi_split_read = 2;
+  if (share->semi_split_read_limit == -1)
+    share->semi_split_read_limit = 9223372036854775807LL;
+  if (share->init_sql_alloc_size == -1)
+    share->init_sql_alloc_size = 1024;
+  if (share->reset_sql_alloc == -1)
+    share->reset_sql_alloc = 1;
+  if (share->multi_split_read == -1)
+    share->multi_split_read = 100;
+  if (share->max_order == -1)
+    share->max_order = 32767;
+  if (share->semi_table_lock == -1)
+    share->semi_table_lock = 0;
+  if (share->semi_table_lock_conn == -1)
+    share->semi_table_lock_conn = 1;
+  if (share->selupd_lock_mode == -1)
+    share->selupd_lock_mode = 1;
+  if (share->query_cache == -1)
+    share->query_cache = 0;
+  if (share->query_cache_sync == -1)
+    share->query_cache_sync = 0;
+  if (share->internal_delayed == -1)
+    share->internal_delayed = 0;
+  if (share->bulk_size == -1)
+    share->bulk_size = 16000;
+  if (share->bulk_update_mode == -1)
+    share->bulk_update_mode = 0;
+  if (share->bulk_update_size == -1)
+    share->bulk_update_size = 16000;
+  if (share->buffer_size == -1)
+    share->buffer_size = 16000;
+  if (share->internal_optimize == -1)
+    share->internal_optimize = 0;
+  if (share->internal_optimize_local == -1)
+    share->internal_optimize_local = 0;
+  if (share->scan_rate == -1)
+    share->scan_rate = 1;
+  if (share->read_rate == -1)
+    share->read_rate = 0.0002;
+  if (share->priority == -1)
+    share->priority = 1000000;
+  if (share->quick_mode == -1)
+    share->quick_mode = 3;
+  if (share->quick_page_size == -1)
+    share->quick_page_size = 1024;
+  if (share->quick_page_byte == -1)
+    share->quick_page_byte = 10485760;
+  if (share->low_mem_read == -1)
+    share->low_mem_read = 1;
+  if (share->table_count_mode == -1)
+    share->table_count_mode = 0;
+  if (share->select_column_mode == -1)
+    share->select_column_mode = 1;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  if (share->bgs_mode == -1)
+    share->bgs_mode = 0;
+  if (share->bgs_first_read == -1)
+    share->bgs_first_read = 2;
+  if (share->bgs_second_read == -1)
+    share->bgs_second_read = 100;
+#endif
+  if (share->first_read == -1)
+    share->first_read = 0;
+  if (share->second_read == -1)
+    share->second_read = 0;
+  if (share->auto_increment_mode == -1)
+    share->auto_increment_mode = 0;
+  if (share->use_table_charset == -1)
+    share->use_table_charset = 1;
+  if (share->use_pushdown_udf == -1)
+    share->use_pushdown_udf = 1;
+  if (share->skip_default_condition == -1)
+    share->skip_default_condition = 0;
+  if (share->skip_parallel_search == -1)
+    share->skip_parallel_search = 0;
+  if (share->direct_dup_insert == -1)
+    share->direct_dup_insert = 0;
+  if (share->direct_order_limit == -1)
+    share->direct_order_limit = 9223372036854775807LL;
+  if (share->read_only_mode == -1)
+    share->read_only_mode = 0;
+  if (share->error_read_mode == -1)
+    share->error_read_mode = 0;
+  if (share->error_write_mode == -1)
+    share->error_write_mode = 0;
+  if (share->active_link_count == -1)
+    share->active_link_count = share->all_link_count;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (share->hs_result_free_size == -1)
+    share->hs_result_free_size = 1048576;
+#endif
+#ifdef HA_CAN_BULK_ACCESS
+  if (share->bulk_access_free == -1)
+    share->bulk_access_free = 0;
+#endif
+#ifdef HA_CAN_FORCE_BULK_UPDATE
+  if (share->force_bulk_update == -1)
+    share->force_bulk_update = 0;
+#endif
+#ifdef HA_CAN_FORCE_BULK_DELETE
+  if (share->force_bulk_delete == -1)
+    share->force_bulk_delete = 0;
+#endif
+  if (share->casual_read == -1)
+    share->casual_read = 0;
+  if (share->delete_all_rows_type == -1)
+  {
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+    share->delete_all_rows_type = 1;
+#else
+    share->delete_all_rows_type = 0;
+#endif
+  }
+  if (share->bka_mode == -1)
+    share->bka_mode = 1;
+  if (!share->bka_engine)
+  {
+    DBUG_PRINT("info",("spider create default bka_engine"));
+    share->bka_engine_length = SPIDER_SQL_TMP_BKA_ENGINE_LEN;
+    if (
+      !(share->bka_engine = spider_create_string(
+        SPIDER_SQL_TMP_BKA_ENGINE_STR,
+        SPIDER_SQL_TMP_BKA_ENGINE_LEN))
+    ) {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_set_connect_info_default_db_table(
+  SPIDER_SHARE *share,
+  const char *db_name,
+  uint db_name_length,
+  const char *table_name,
+  uint table_name_length
+) {
+  uint roop_count, roop_count2;
+  bool check_database;
+  bool database_has_default_value;
+  DBUG_ENTER("spider_set_connect_info_default_db_table");
+  for (roop_count = 0; roop_count < share->link_count; roop_count++)
+  {
+    if (!share->tgt_dbs[roop_count] && db_name)
+    {
+      check_database = TRUE;
+    } else {
+      check_database = FALSE;
+    }
+    if (check_database)
+    {
+      database_has_default_value = check_database;
+      if (share->tgt_wrappers[roop_count])
+      {
+        for (roop_count2 = 0; roop_count2 < SPIDER_DBTON_SIZE; roop_count2++)
+        {
+          DBUG_PRINT("info",("spider share->tgt_wrappers[%d]=%s", roop_count,
+            share->tgt_wrappers[roop_count]));
+          DBUG_PRINT("info",("spider spider_dbton[%d].wrapper=%s", roop_count2,
+            spider_dbton[roop_count2].wrapper ?
+              spider_dbton[roop_count2].wrapper : "NULL"));
+          if (
+            spider_dbton[roop_count2].wrapper &&
+            !strcmp(share->tgt_wrappers[roop_count],
+              spider_dbton[roop_count2].wrapper)
+          ) {
+            if (spider_dbton[roop_count2].db_access_type ==
+              SPIDER_DB_ACCESS_TYPE_SQL)
+            {
+              if (check_database)
+              {
+                database_has_default_value = spider_dbton[roop_count2].
+                  db_util->database_has_default_value();
+              }
+              break;
+            }
+          }
+        }
+      }
+    } else {
+      database_has_default_value = FALSE;
+    }
+
+    if (database_has_default_value)
+    {
+      DBUG_PRINT("info",("spider create default tgt_dbs"));
+      share->tgt_dbs_lengths[roop_count] = db_name_length;
+      if (
+        !(share->tgt_dbs[roop_count] = spider_create_string(
+          db_name,
+          db_name_length))
+      ) {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+    }
+
+    if (!share->tgt_table_names[roop_count] && table_name)
+    {
+      const char *tmp_ptr;
+      DBUG_PRINT("info",("spider create default tgt_table_names"));
+      if ((tmp_ptr = strstr(table_name, "#P#")))
+        table_name_length = (uint) PTR_BYTE_DIFF(tmp_ptr, table_name);
+      share->tgt_table_names_lengths[roop_count] = table_name_length;
+      if (
+        !(share->tgt_table_names[roop_count] = spider_create_string(
+          table_name,
+          table_name_length))
+      ) {
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_set_connect_info_default_dbtable(
+  SPIDER_SHARE *share,
+  const char *dbtable_name,
+  int dbtable_name_length
+) {
+  const char *ptr_db, *ptr_table;
+  my_ptrdiff_t ptr_diff_db, ptr_diff_table;
+  DBUG_ENTER("spider_set_connect_info_default_dbtable");
+  ptr_db = strchr(dbtable_name, FN_LIBCHAR);
+  ptr_db++;
+  ptr_diff_db = PTR_BYTE_DIFF(ptr_db, dbtable_name);
+  DBUG_PRINT("info",("spider ptr_diff_db = %lld", (longlong) ptr_diff_db));
+  ptr_table = strchr(ptr_db, FN_LIBCHAR);
+  ptr_table++;
+  ptr_diff_table = PTR_BYTE_DIFF(ptr_table, ptr_db);
+  DBUG_PRINT("info",("spider ptr_diff_table = %lld", (longlong) ptr_diff_table));
+  DBUG_RETURN(spider_set_connect_info_default_db_table(
+    share,
+    ptr_db,
+    (uint)(ptr_diff_table - 1),
+    ptr_table,
+    (uint)(dbtable_name_length - ptr_diff_db - ptr_diff_table)
+  ));
+}
+
+#ifndef DBUG_OFF
+void spider_print_keys(
+  const char *key,
+  uint length
+) {
+  const char *end_ptr;
+  uint roop_count = 1;
+  DBUG_ENTER("spider_print_keys");
+  DBUG_PRINT("info",("spider key_length=%u", length));
+  end_ptr = key + length;
+  while (key < end_ptr)
+  {
+    DBUG_PRINT("info",("spider key[%u]=%s", roop_count, key));
+    key = strchr(key, '\0') + 1;
+    roop_count++;
+  }
+  DBUG_VOID_RETURN;
+}
+#endif
+
+int spider_create_conn_keys(
+  SPIDER_SHARE *share
+) {
+  int roop_count, roop_count2;
+  char *tmp_name, port_str[6];
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  char *tmp_hs_r_name, *tmp_hs_w_name;
+#endif
+  uint length_base = sizeof(uint) * share->all_link_count;
+  uint *conn_keys_lengths;
+  uint *sql_dbton_ids;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  uint *hs_dbton_ids;
+  uint *hs_r_conn_keys_lengths;
+  uint *hs_w_conn_keys_lengths;
+#endif
+  DBUG_ENTER("spider_create_conn_keys");
+  char *ptr;
+  uint length = length_base * 2;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  length += length_base * 3;
+#endif
+  ptr = (char *) my_alloca(length);
+  if (!ptr)
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  conn_keys_lengths = (uint *) ptr;
+  ptr += length_base;
+  sql_dbton_ids = (uint *) ptr;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  ptr += length_base;
+  hs_dbton_ids = (uint *) ptr;
+  ptr += length_base;
+  hs_r_conn_keys_lengths = (uint *) ptr;
+  ptr += length_base;
+  hs_w_conn_keys_lengths = (uint *) ptr;
+#endif
+
+  share->conn_keys_charlen = 0;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  share->hs_read_conn_keys_charlen = 0;
+  share->hs_write_conn_keys_charlen = 0;
+#endif
+  for (roop_count = 0; roop_count < (int) share->all_link_count; roop_count++)
+  {
+    bool get_sql_id = FALSE;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    bool get_nosql_id = FALSE;
+#endif
+    for (roop_count2 = 0; roop_count2 < SPIDER_DBTON_SIZE; roop_count2++)
+    {
+      DBUG_PRINT("info",("spider share->tgt_wrappers[%d]=%s", roop_count,
+        share->tgt_wrappers[roop_count]));
+      DBUG_PRINT("info",("spider spider_dbton[%d].wrapper=%s", roop_count2,
+        spider_dbton[roop_count2].wrapper ?
+          spider_dbton[roop_count2].wrapper : "NULL"));
+      if (
+        spider_dbton[roop_count2].wrapper &&
+        !strcmp(share->tgt_wrappers[roop_count],
+          spider_dbton[roop_count2].wrapper)
+      ) {
+        spider_set_bit(share->dbton_bitmap, roop_count2);
+        if (
+          !get_sql_id &&
+          spider_dbton[roop_count2].db_access_type == SPIDER_DB_ACCESS_TYPE_SQL
+        ) {
+          sql_dbton_ids[roop_count] = roop_count2;
+          get_sql_id = TRUE;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+          if (get_nosql_id)
+#endif
+            break;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+          else
+            continue;
+#endif
+        }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+        if (
+          !get_nosql_id &&
+          spider_dbton[roop_count2].db_access_type ==
+            SPIDER_DB_ACCESS_TYPE_NOSQL
+        ) {
+          hs_dbton_ids[roop_count] = roop_count2;
+          get_nosql_id = TRUE;
+          if (get_sql_id)
+            break;
+        }
+#endif
+      }
+    }
+    if (!get_sql_id)
+      sql_dbton_ids[roop_count] = SPIDER_DBTON_SIZE;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    if (!get_nosql_id)
+      hs_dbton_ids[roop_count] = SPIDER_DBTON_SIZE;
+#endif
+
+    bool tables_on_different_db_are_joinable;
+    if (get_sql_id)
+    {
+      tables_on_different_db_are_joinable =
+        spider_dbton[sql_dbton_ids[roop_count]].db_util->
+          tables_on_different_db_are_joinable();
+    } else {
+      tables_on_different_db_are_joinable = TRUE;
+    }
+    conn_keys_lengths[roop_count]
+      = 1
+      + share->tgt_wrappers_lengths[roop_count] + 1
+      + share->tgt_hosts_lengths[roop_count] + 1
+      + 5 + 1
+      + share->tgt_sockets_lengths[roop_count] + 1
+      + (tables_on_different_db_are_joinable ?
+        0 : share->tgt_dbs_lengths[roop_count] + 1)
+      + share->tgt_usernames_lengths[roop_count] + 1
+      + share->tgt_passwords_lengths[roop_count] + 1
+      + share->tgt_ssl_cas_lengths[roop_count] + 1
+      + share->tgt_ssl_capaths_lengths[roop_count] + 1
+      + share->tgt_ssl_certs_lengths[roop_count] + 1
+      + share->tgt_ssl_ciphers_lengths[roop_count] + 1
+      + share->tgt_ssl_keys_lengths[roop_count] + 1
+      + 1 + 1
+      + share->tgt_default_files_lengths[roop_count] + 1
+      + share->tgt_default_groups_lengths[roop_count] + 1
+      + share->tgt_dsns_lengths[roop_count];
+    share->conn_keys_charlen += conn_keys_lengths[roop_count] + 2;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    hs_r_conn_keys_lengths[roop_count]
+      = 1
+      + share->tgt_wrappers_lengths[roop_count] + 1
+      + share->tgt_hosts_lengths[roop_count] + 1
+      + 5 + 1
+      + share->hs_read_socks_lengths[roop_count];
+    share->hs_read_conn_keys_charlen +=
+      hs_r_conn_keys_lengths[roop_count] + 2;
+    hs_w_conn_keys_lengths[roop_count]
+      = 1
+      + share->tgt_wrappers_lengths[roop_count] + 1
+      + share->tgt_hosts_lengths[roop_count] + 1
+      + 5 + 1
+      + share->hs_write_socks_lengths[roop_count];
+    share->hs_write_conn_keys_charlen +=
+      hs_w_conn_keys_lengths[roop_count] + 2;
+#endif
+  }
+  if (!(share->conn_keys = (char **)
+    spider_bulk_alloc_mem(spider_current_trx, 45,
+      __func__, __FILE__, __LINE__, MYF(MY_WME | MY_ZEROFILL),
+      &share->conn_keys, sizeof(char *) * share->all_link_count,
+      &share->conn_keys_lengths, length_base,
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+      &share->conn_keys_hash_value,
+        sizeof(my_hash_value_type) * share->all_link_count,
+#endif
+      &tmp_name, sizeof(char) * share->conn_keys_charlen,
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      &share->hs_read_conn_keys, sizeof(char *) * share->all_link_count,
+      &share->hs_read_conn_keys_lengths, length_base,
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+      &share->hs_read_conn_keys_hash_value,
+        sizeof(my_hash_value_type) * share->all_link_count,
+#endif
+      &tmp_hs_r_name, sizeof(char) * share->hs_read_conn_keys_charlen,
+      &share->hs_write_conn_keys, sizeof(char *) * share->all_link_count,
+      &share->hs_write_conn_keys_lengths, length_base,
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+      &share->hs_write_conn_keys_hash_value,
+        sizeof(my_hash_value_type) * share->all_link_count,
+#endif
+      &tmp_hs_w_name, sizeof(char) * share->hs_write_conn_keys_charlen,
+#endif
+      &share->sql_dbton_ids, length_base,
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      &share->hs_dbton_ids, length_base,
+#endif
+      NullS))
+  ) {
+    my_afree(conn_keys_lengths);
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  share->conn_keys_length = share->all_link_count;
+  memcpy(share->conn_keys_lengths, conn_keys_lengths,
+    length_base);
+  memcpy(share->sql_dbton_ids, sql_dbton_ids, length_base);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  share->hs_read_conn_keys_length = share->all_link_count;
+  share->hs_write_conn_keys_length = share->all_link_count;
+  memcpy(share->hs_read_conn_keys_lengths, hs_r_conn_keys_lengths,
+    length_base);
+  memcpy(share->hs_write_conn_keys_lengths, hs_w_conn_keys_lengths,
+    length_base);
+  memcpy(share->hs_dbton_ids, hs_dbton_ids, length_base);
+#endif
+
+  my_afree(conn_keys_lengths);
+
+  for (roop_count = 0; roop_count < (int) share->all_link_count; roop_count++)
+  {
+    bool tables_on_different_db_are_joinable;
+    if (share->sql_dbton_ids[roop_count] != SPIDER_DBTON_SIZE)
+    {
+      tables_on_different_db_are_joinable =
+        spider_dbton[share->sql_dbton_ids[roop_count]].db_util->
+          tables_on_different_db_are_joinable();
+    } else {
+      tables_on_different_db_are_joinable = TRUE;
+    }
+
+    share->conn_keys[roop_count] = tmp_name;
+    *tmp_name = '0';
+    DBUG_PRINT("info",("spider tgt_wrappers[%d]=%s", roop_count,
+      share->tgt_wrappers[roop_count]));
+    tmp_name = strmov(tmp_name + 1, share->tgt_wrappers[roop_count]);
+    DBUG_PRINT("info",("spider tgt_hosts[%d]=%s", roop_count,
+      share->tgt_hosts[roop_count]));
+    tmp_name = strmov(tmp_name + 1, share->tgt_hosts[roop_count]);
+    my_sprintf(port_str, (port_str, "%05ld", share->tgt_ports[roop_count]));
+    DBUG_PRINT("info",("spider port_str=%s", port_str));
+    tmp_name = strmov(tmp_name + 1, port_str);
+    if (share->tgt_sockets[roop_count])
+    {
+      DBUG_PRINT("info",("spider tgt_sockets[%d]=%s", roop_count,
+        share->tgt_sockets[roop_count]));
+      tmp_name = strmov(tmp_name + 1, share->tgt_sockets[roop_count]);
+    } else
+      tmp_name++;
+    if (!tables_on_different_db_are_joinable)
+    {
+      if (share->tgt_dbs[roop_count])
+      {
+        DBUG_PRINT("info",("spider tgt_dbs[%d]=%s", roop_count,
+          share->tgt_dbs[roop_count]));
+        tmp_name = strmov(tmp_name + 1, share->tgt_dbs[roop_count]);
+      } else
+        tmp_name++;
+    }
+    if (share->tgt_usernames[roop_count])
+    {
+      DBUG_PRINT("info",("spider tgt_usernames[%d]=%s", roop_count,
+        share->tgt_usernames[roop_count]));
+      tmp_name = strmov(tmp_name + 1, share->tgt_usernames[roop_count]);
+    } else
+      tmp_name++;
+    if (share->tgt_passwords[roop_count])
+    {
+      DBUG_PRINT("info",("spider tgt_passwords[%d]=%s", roop_count,
+        share->tgt_passwords[roop_count]));
+      tmp_name = strmov(tmp_name + 1, share->tgt_passwords[roop_count]);
+    } else
+      tmp_name++;
+    if (share->tgt_ssl_cas[roop_count])
+    {
+      DBUG_PRINT("info",("spider tgt_ssl_cas[%d]=%s", roop_count,
+        share->tgt_ssl_cas[roop_count]));
+      tmp_name = strmov(tmp_name + 1, share->tgt_ssl_cas[roop_count]);
+    } else
+      tmp_name++;
+    if (share->tgt_ssl_capaths[roop_count])
+    {
+      DBUG_PRINT("info",("spider tgt_ssl_capaths[%d]=%s", roop_count,
+        share->tgt_ssl_capaths[roop_count]));
+      tmp_name = strmov(tmp_name + 1, share->tgt_ssl_capaths[roop_count]);
+    } else
+      tmp_name++;
+    if (share->tgt_ssl_certs[roop_count])
+    {
+      DBUG_PRINT("info",("spider tgt_ssl_certs[%d]=%s", roop_count,
+        share->tgt_ssl_certs[roop_count]));
+      tmp_name = strmov(tmp_name + 1, share->tgt_ssl_certs[roop_count]);
+    } else
+      tmp_name++;
+    if (share->tgt_ssl_ciphers[roop_count])
+    {
+      DBUG_PRINT("info",("spider tgt_ssl_ciphers[%d]=%s", roop_count,
+        share->tgt_ssl_ciphers[roop_count]));
+      tmp_name = strmov(tmp_name + 1, share->tgt_ssl_ciphers[roop_count]);
+    } else
+      tmp_name++;
+    if (share->tgt_ssl_keys[roop_count])
+    {
+      DBUG_PRINT("info",("spider tgt_ssl_keys[%d]=%s", roop_count,
+        share->tgt_ssl_keys[roop_count]));
+      tmp_name = strmov(tmp_name + 1, share->tgt_ssl_keys[roop_count]);
+    } else
+      tmp_name++;
+    tmp_name++;
+    *tmp_name = '0' + ((char) share->tgt_ssl_vscs[roop_count]);
+    if (share->tgt_default_files[roop_count])
+    {
+      DBUG_PRINT("info",("spider tgt_default_files[%d]=%s", roop_count,
+        share->tgt_default_files[roop_count]));
+      tmp_name = strmov(tmp_name + 1, share->tgt_default_files[roop_count]);
+    } else
+      tmp_name++;
+    if (share->tgt_default_groups[roop_count])
+    {
+      DBUG_PRINT("info",("spider tgt_default_groups[%d]=%s", roop_count,
+        share->tgt_default_groups[roop_count]));
+      tmp_name = strmov(tmp_name + 1, share->tgt_default_groups[roop_count]);
+    } else
+      tmp_name++;
+    if (share->tgt_dsns[roop_count])
+    {
+      DBUG_PRINT("info",("spider tgt_dsns[%d]=%s", roop_count,
+        share->tgt_dsns[roop_count]));
+      tmp_name = strmov(tmp_name + 1, share->tgt_dsns[roop_count]);
+    } else
+      tmp_name++;
+    tmp_name++;
+    tmp_name++;
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+    share->conn_keys_hash_value[roop_count] = my_calc_hash(
+      &spider_open_connections, (uchar*) share->conn_keys[roop_count],
+      share->conn_keys_lengths[roop_count]);
+#endif
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    share->hs_read_conn_keys[roop_count] = tmp_hs_r_name;
+    *tmp_hs_r_name = '0';
+    DBUG_PRINT("info",("spider tgt_wrappers[%d]=%s", roop_count,
+      share->tgt_wrappers[roop_count]));
+    tmp_hs_r_name = strmov(tmp_hs_r_name + 1, share->tgt_wrappers[roop_count]);
+    DBUG_PRINT("info",("spider tgt_hosts[%d]=%s", roop_count,
+      share->tgt_hosts[roop_count]));
+    tmp_hs_r_name = strmov(tmp_hs_r_name + 1, share->tgt_hosts[roop_count]);
+    my_sprintf(port_str, (port_str, "%05ld",
+      share->hs_read_ports[roop_count]));
+    DBUG_PRINT("info",("spider port_str=%s", port_str));
+    tmp_hs_r_name = strmov(tmp_hs_r_name + 1, port_str);
+    if (share->hs_read_socks[roop_count])
+    {
+      DBUG_PRINT("info",("spider hs_read_socks[%d]=%s", roop_count,
+        share->hs_read_socks[roop_count]));
+      tmp_hs_r_name = strmov(tmp_hs_r_name + 1,
+        share->hs_read_socks[roop_count]);
+    } else
+      tmp_hs_r_name++;
+    tmp_hs_r_name++;
+    tmp_hs_r_name++;
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+    share->hs_read_conn_keys_hash_value[roop_count] = my_calc_hash(
+      &spider_open_connections, (uchar*) share->hs_read_conn_keys[roop_count],
+      share->hs_read_conn_keys_lengths[roop_count]);
+#endif
+    share->hs_write_conn_keys[roop_count] = tmp_hs_w_name;
+    *tmp_hs_w_name = '0';
+    DBUG_PRINT("info",("spider tgt_wrappers[%d]=%s", roop_count,
+      share->tgt_wrappers[roop_count]));
+    tmp_hs_w_name = strmov(tmp_hs_w_name + 1, share->tgt_wrappers[roop_count]);
+    DBUG_PRINT("info",("spider tgt_hosts[%d]=%s", roop_count,
+      share->tgt_hosts[roop_count]));
+    tmp_hs_w_name = strmov(tmp_hs_w_name + 1, share->tgt_hosts[roop_count]);
+    my_sprintf(port_str, (port_str, "%05ld",
+      share->hs_write_ports[roop_count]));
+    DBUG_PRINT("info",("spider port_str=%s", port_str));
+    tmp_hs_w_name = strmov(tmp_hs_w_name + 1, port_str);
+    if (share->hs_write_socks[roop_count])
+    {
+      DBUG_PRINT("info",("spider hs_write_socks[%d]=%s", roop_count,
+        share->hs_write_socks[roop_count]));
+      tmp_hs_w_name = strmov(tmp_hs_w_name + 1,
+        share->hs_write_socks[roop_count]);
+    } else
+      tmp_hs_w_name++;
+    tmp_hs_w_name++;
+    tmp_hs_w_name++;
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+    share->hs_write_conn_keys_hash_value[roop_count] = my_calc_hash(
+      &spider_open_connections, (uchar*) share->hs_write_conn_keys[roop_count],
+      share->hs_write_conn_keys_lengths[roop_count]);
+#endif
+#endif
+  }
+  for (roop_count2 = 0; roop_count2 < SPIDER_DBTON_SIZE; roop_count2++)
+  {
+    if (spider_bit_is_set(share->dbton_bitmap, roop_count2))
+    {
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      if (spider_dbton[roop_count2].db_access_type ==
+        SPIDER_DB_ACCESS_TYPE_SQL)
+      {
+#endif
+        share->use_sql_dbton_ids[share->use_dbton_count] = roop_count2;
+        share->sql_dbton_id_to_seq[roop_count2] = share->use_dbton_count;
+        share->use_sql_dbton_count++;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      } else {
+        share->use_hs_dbton_ids[share->use_hs_dbton_count] = roop_count2;
+        share->hs_dbton_id_to_seq[roop_count2] = share->use_hs_dbton_count;
+        share->use_hs_dbton_count++;
+      }
+#endif
+      share->use_dbton_ids[share->use_dbton_count] = roop_count2;
+      share->dbton_id_to_seq[roop_count2] = share->use_dbton_count;
+      share->use_dbton_count++;
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+SPIDER_SHARE *spider_create_share(
+  const char *table_name,
+  TABLE_SHARE *table_share,
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  partition_info *part_info,
+#endif
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  my_hash_value_type hash_value,
+#endif
+  int *error_num
+) {
+  int bitmap_size, roop_count;
+  uint length;
+  int use_table_charset;
+  SPIDER_SHARE *share;
+  char *tmp_name;
+  longlong *tmp_cardinality, *tmp_static_key_cardinality;
+  uchar *tmp_cardinality_upd, *tmp_table_mon_mutex_bitmap;
+  char buf[MAX_FIELD_WIDTH], *buf_pos;
+  char link_idx_str[SPIDER_SQL_INT_LEN];
+#ifdef HA_HAS_CHECKSUM_EXTENDED
+  bool checksum_support = TRUE;
+#endif
+  DBUG_ENTER("spider_create_share");
+  length = (uint) strlen(table_name);
+  bitmap_size = spider_bitmap_size(table_share->fields);
+  if (!(share = (SPIDER_SHARE *)
+    spider_bulk_malloc(spider_current_trx, 46, MYF(MY_WME | MY_ZEROFILL),
+      &share, (uint) (sizeof(*share)),
+      &tmp_name, (uint) (length + 1),
+      &tmp_static_key_cardinality,
+        (uint) (sizeof(*tmp_static_key_cardinality) * table_share->keys),
+      &tmp_cardinality,
+        (uint) (sizeof(*tmp_cardinality) * table_share->fields),
+      &tmp_cardinality_upd,
+        (uint) (sizeof(*tmp_cardinality_upd) * bitmap_size),
+      &tmp_table_mon_mutex_bitmap,
+        (uint) (sizeof(*tmp_table_mon_mutex_bitmap) *
+          ((spider_param_udf_table_mon_mutex_count() + 7) / 8)),
+      NullS))
+  ) {
+    *error_num = HA_ERR_OUT_OF_MEM;
+    goto error_alloc_share;
+  }
+
+  SPD_INIT_ALLOC_ROOT(&share->mem_root, 4096, 0, MYF(MY_WME));
+  share->use_count = 0;
+  share->use_dbton_count = 0;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  share->use_hs_dbton_count = 0;
+#endif
+  share->table_name_length = length;
+  share->table_name = tmp_name;
+  strmov(share->table_name, table_name);
+  share->static_key_cardinality = tmp_static_key_cardinality;
+  share->cardinality = tmp_cardinality;
+  share->cardinality_upd = tmp_cardinality_upd;
+  share->table_mon_mutex_bitmap = tmp_table_mon_mutex_bitmap;
+  share->bitmap_size = bitmap_size;
+  share->table_share = table_share;
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  share->table_name_hash_value = hash_value;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  share->table_path_hash_value = my_calc_hash(&spider_open_tables,
+    (uchar*) table_share->path.str, table_share->path.length);
+#endif
+#endif
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  share->table.s = table_share;
+  share->table.field = table_share->field;
+  share->table.key_info = table_share->key_info;
+  share->table.read_set = &table_share->all_set;
+#endif
+
+  if (table_share->keys > 0 &&
+    !(share->key_hint = new spider_string[table_share->keys])
+  ) {
+    *error_num = HA_ERR_OUT_OF_MEM;
+    goto error_init_hint_string;
+  }
+  for (roop_count = 0; roop_count < (int) table_share->keys; roop_count++)
+    share->key_hint[roop_count].init_calc_mem(95);
+  DBUG_PRINT("info",("spider share->key_hint=%p", share->key_hint));
+
+  if ((*error_num = spider_parse_connect_info(share, table_share,
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+    part_info,
+#endif
+    0)))
+    goto error_parse_connect_string;
+
+  for (roop_count = 0; roop_count < (int) share->all_link_count;
+    roop_count++)
+  {
+    my_sprintf(link_idx_str, (link_idx_str, "%010d", roop_count));
+    buf_pos = strmov(buf, share->table_name);
+    buf_pos = strmov(buf_pos, link_idx_str);
+    *buf_pos = '\0';
+    spider_set_bit(tmp_table_mon_mutex_bitmap,
+      spider_udf_calc_hash(buf, spider_param_udf_table_mon_mutex_count())
+    );
+  }
+
+  use_table_charset = spider_param_use_table_charset(
+    share->use_table_charset);
+  if (table_share->table_charset && use_table_charset)
+    share->access_charset = table_share->table_charset;
+  else
+    share->access_charset = system_charset_info;
+
+  if ((*error_num = spider_create_conn_keys(share)))
+    goto error_create_conn_keys;
+
+  if (share->table_count_mode & 1)
+    share->additional_table_flags |= HA_STATS_RECORDS_IS_EXACT;
+  if (share->table_count_mode & 2)
+    share->additional_table_flags |= HA_HAS_RECORDS;
+
+#if MYSQL_VERSION_ID < 50500
+  if (pthread_mutex_init(&share->mutex, MY_MUTEX_INIT_FAST))
+#else
+  if (mysql_mutex_init(spd_key_mutex_share,
+    &share->mutex, MY_MUTEX_INIT_FAST))
+#endif
+  {
+    *error_num = HA_ERR_OUT_OF_MEM;
+    goto error_init_mutex;
+  }
+
+#if MYSQL_VERSION_ID < 50500
+  if (pthread_mutex_init(&share->sts_mutex, MY_MUTEX_INIT_FAST))
+#else
+  if (mysql_mutex_init(spd_key_mutex_share_sts,
+    &share->sts_mutex, MY_MUTEX_INIT_FAST))
+#endif
+  {
+    *error_num = HA_ERR_OUT_OF_MEM;
+    goto error_init_sts_mutex;
+  }
+
+#if MYSQL_VERSION_ID < 50500
+  if (pthread_mutex_init(&share->crd_mutex, MY_MUTEX_INIT_FAST))
+#else
+  if (mysql_mutex_init(spd_key_mutex_share_crd,
+    &share->crd_mutex, MY_MUTEX_INIT_FAST))
+#endif
+  {
+    *error_num = HA_ERR_OUT_OF_MEM;
+    goto error_init_crd_mutex;
+  }
+
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  if (!(share->lgtm_tblhnd_share =
+    spider_get_lgtm_tblhnd_share(tmp_name, length, hash_value, FALSE, TRUE,
+    error_num)))
+#else
+  if (!(share->lgtm_tblhnd_share =
+    spider_get_lgtm_tblhnd_share(tmp_name, length, FALSE, TRUE, error_num)))
+#endif
+  {
+    goto error_get_lgtm_tblhnd_share;
+  }
+
+  if (!(share->wide_share =
+    spider_get_wide_share(share, table_share, error_num)))
+    goto error_get_wide_share;
+
+  for (roop_count = 0; roop_count < SPIDER_DBTON_SIZE; roop_count++)
+  {
+    if (spider_bit_is_set(share->dbton_bitmap, roop_count))
+    {
+      if (!(share->dbton_share[roop_count] =
+        spider_dbton[roop_count].create_db_share(share)))
+      {
+        *error_num = HA_ERR_OUT_OF_MEM;
+        goto error_init_dbton;
+      }
+      if ((*error_num = share->dbton_share[roop_count]->init()))
+      {
+        goto error_init_dbton;
+      }
+#ifdef HA_HAS_CHECKSUM_EXTENDED
+      if (
+        spider_dbton[roop_count].db_access_type == SPIDER_DB_ACCESS_TYPE_SQL &&
+        !share->dbton_share[roop_count]->checksum_support()
+      ) {
+        checksum_support = FALSE;
+      }
+#endif
+    }
+  }
+#ifdef HA_HAS_CHECKSUM_EXTENDED
+  if (checksum_support)
+  {
+    share->additional_table_flags |=
+      HA_HAS_OLD_CHECKSUM |
+      HA_HAS_NEW_CHECKSUM;
+  }
+#endif
+  DBUG_RETURN(share);
+
+/*
+  roop_count = SPIDER_DBTON_SIZE - 1;
+*/
+error_init_dbton:
+  for (; roop_count >= 0; roop_count--)
+  {
+    if (share->dbton_share[roop_count])
+    {
+      delete share->dbton_share[roop_count];
+      share->dbton_share[roop_count] = NULL;
+    }
+  }
+  spider_free_wide_share(share->wide_share);
+error_get_wide_share:
+error_get_lgtm_tblhnd_share:
+  pthread_mutex_destroy(&share->crd_mutex);
+error_init_crd_mutex:
+  pthread_mutex_destroy(&share->sts_mutex);
+error_init_sts_mutex:
+  pthread_mutex_destroy(&share->mutex);
+error_init_mutex:
+error_create_conn_keys:
+error_parse_connect_string:
+error_init_hint_string:
+  spider_free_share_alloc(share);
+  spider_free(spider_current_trx, share, MYF(0));
+error_alloc_share:
+  DBUG_RETURN(NULL);
+}
+
+SPIDER_SHARE *spider_get_share(
+  const char *table_name,
+  TABLE *table,
+  THD *thd,
+  ha_spider *spider,
+  int *error_num
+) {
+  SPIDER_SHARE *share;
+  TABLE_SHARE *table_share = table->s;
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  uint length, tmp_conn_link_idx = 0, buf_sz;
+  char *tmp_name, *tmp_cid;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  char *tmp_hs_r_name, *tmp_hs_w_name;
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+  uint32 *tmp_hs_r_ret_fields, *tmp_hs_w_ret_fields;
+#endif
+#endif
+  int roop_count;
+  double sts_interval;
+  int sts_mode;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  int sts_sync;
+  int auto_increment_mode;
+#endif
+  double crd_interval;
+  int crd_mode;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  int crd_sync;
+#endif
+  char first_byte;
+  int semi_table_lock_conn;
+  int search_link_idx;
+  uint sql_command = thd_sql_command(thd);
+  SPIDER_Open_tables_backup open_tables_backup;
+  MEM_ROOT mem_root;
+  TABLE *table_tables = NULL;
+  bool init_mem_root = FALSE;
+  bool same_server_link;
+  int load_sts_at_startup;
+  int load_crd_at_startup;
+  user_var_entry *loop_check;
+  char *loop_check_buf;
+  TABLE_SHARE *top_share;
+  LEX_CSTRING lex_str;
+  DBUG_ENTER("spider_get_share");
+  top_share = spider->wide_handler->top_share;
+  length = (uint) strlen(table_name);
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  my_hash_value_type hash_value = my_calc_hash(&spider_open_tables,
+    (uchar*) table_name, length);
+#endif
+  if (top_share)
+  {
+    lex_str.length = top_share->path.length + SPIDER_SQL_LOP_CHK_PRM_PRF_LEN;
+    buf_sz = spider_unique_id.length > SPIDER_SQL_LOP_CHK_PRM_PRF_LEN ?
+      top_share->path.length + spider_unique_id.length + 2 :
+      lex_str.length + 2;
+    loop_check_buf = (char *) my_alloca(buf_sz);
+    if (unlikely(!loop_check_buf))
+    {
+      *error_num = HA_ERR_OUT_OF_MEM;
+      DBUG_RETURN(NULL);
+    }
+    lex_str.str = loop_check_buf + buf_sz - lex_str.length - 2;
+    memcpy((void *) lex_str.str,
+      SPIDER_SQL_LOP_CHK_PRM_PRF_STR, SPIDER_SQL_LOP_CHK_PRM_PRF_LEN);
+    memcpy((void *) (lex_str.str + SPIDER_SQL_LOP_CHK_PRM_PRF_LEN),
+      top_share->path.str, top_share->path.length);
+    ((char *) lex_str.str)[lex_str.length] = '\0';
+    DBUG_PRINT("info",("spider loop check param name=%s", lex_str.str));
+    loop_check = get_variable(&thd->user_vars, &lex_str, FALSE);
+    if (loop_check && loop_check->type == STRING_RESULT)
+    {
+      lex_str.length = top_share->path.length + spider_unique_id.length + 1;
+      lex_str.str = loop_check_buf + buf_sz - top_share->path.length -
+        spider_unique_id.length - 2;
+      memcpy((void *) lex_str.str, spider_unique_id.str,
+        spider_unique_id.length);
+      ((char *) lex_str.str)[lex_str.length - 1] = '-';
+      ((char *) lex_str.str)[lex_str.length] = '\0';
+      DBUG_PRINT("info",("spider loop check key=%s", lex_str.str));
+      DBUG_PRINT("info",("spider loop check param value=%s",
+        loop_check->value));
+      if (unlikely(strstr(loop_check->value, lex_str.str)))
+      {
+        *error_num = ER_SPIDER_INFINITE_LOOP_NUM;
+        my_printf_error(*error_num, ER_SPIDER_INFINITE_LOOP_STR, MYF(0),
+          top_share->db.str, top_share->table_name.str);
+        my_afree(loop_check_buf);
+        DBUG_RETURN(NULL);
+      }
+    }
+    my_afree(loop_check_buf);
+  }
+  pthread_mutex_lock(&spider_tbl_mutex);
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  if (!(share = (SPIDER_SHARE*) my_hash_search_using_hash_value(
+    &spider_open_tables, hash_value, (uchar*) table_name, length)))
+#else
+  if (!(share = (SPIDER_SHARE*) my_hash_search(&spider_open_tables,
+    (uchar*) table_name, length)))
+#endif
+  {
+    if (!(share = spider_create_share(
+      table_name, table_share,
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+      table->part_info,
+#endif
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+      hash_value,
+#endif
+      error_num
+    ))) {
+      goto error_alloc_share;
+    }
+
+    uint old_elements = spider_open_tables.array.max_element;
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+    if (my_hash_insert_with_hash_value(&spider_open_tables, hash_value,
+      (uchar*) share))
+#else
+    if (my_hash_insert(&spider_open_tables, (uchar*) share))
+#endif
+    {
+      *error_num = HA_ERR_OUT_OF_MEM;
+      goto error_hash_insert;
+    }
+    if (spider_open_tables.array.max_element > old_elements)
+    {
+      spider_alloc_calc_mem(spider_current_trx,
+        spider_open_tables,
+        (spider_open_tables.array.max_element - old_elements) *
+        spider_open_tables.array.size_of_element);
+    }
+
+    spider->share = share;
+    spider->conn_link_idx = &tmp_conn_link_idx;
+
+    share->use_count++;
+    pthread_mutex_unlock(&spider_tbl_mutex);
+
+    if (!share->link_status_init)
+    {
+      pthread_mutex_lock(&share->mutex);
+      for (roop_count = 0;
+        roop_count < (int) spider_param_udf_table_mon_mutex_count();
+        roop_count++
+      ) {
+        if (spider_bit_is_set(share->table_mon_mutex_bitmap, roop_count))
+          pthread_mutex_lock(&spider_udf_table_mon_mutexes[roop_count]);
+      }
+      if (!share->link_status_init)
+      {
+        /*
+          The link statuses need to be refreshed from the spider_tables table
+          if the operation:
+          - Is not a DROP TABLE on a permanent table; or
+          - Is an ALTER TABLE.
+
+          Note that SHOW CREATE TABLE is not excluded, because the commands
+          that follow it require up-to-date link statuses.
+        */
+        if ((table_share->tmp_table == NO_TMP_TABLE &&
+             sql_command != SQLCOM_DROP_TABLE) ||
+            /* for alter change link status */
+            sql_command == SQLCOM_ALTER_TABLE)
+        {
+          SPD_INIT_ALLOC_ROOT(&mem_root, 4096, 0, MYF(MY_WME));
+          init_mem_root = TRUE;
+
+          if (
+            !(table_tables = spider_open_sys_table(
+              thd, SPIDER_SYS_TABLES_TABLE_NAME_STR,
+              SPIDER_SYS_TABLES_TABLE_NAME_LEN, FALSE, &open_tables_backup,
+              FALSE, error_num))
+          ) {
+            for (roop_count = 0;
+              roop_count < (int) spider_param_udf_table_mon_mutex_count();
+              roop_count++
+            ) {
+              if (spider_bit_is_set(share->table_mon_mutex_bitmap, roop_count))
+                pthread_mutex_unlock(&spider_udf_table_mon_mutexes[roop_count]);
+            }
+            pthread_mutex_unlock(&share->mutex);
+            share->init_error = TRUE;
+            share->init_error_time = (time_t) time((time_t*) 0);
+            share->init = TRUE;
+            spider_free_share(share);
+            goto error_open_sys_table;
+          }
+          *error_num = spider_get_link_statuses(table_tables, share,
+            &mem_root);
+          if (*error_num)
+          {
+            if (
+              *error_num != HA_ERR_KEY_NOT_FOUND &&
+              *error_num != HA_ERR_END_OF_FILE
+            ) {
+              for (roop_count = 0;
+                roop_count < (int) spider_param_udf_table_mon_mutex_count();
+                roop_count++
+              ) {
+                if (spider_bit_is_set(share->table_mon_mutex_bitmap, roop_count))
+                  pthread_mutex_unlock(&spider_udf_table_mon_mutexes[roop_count]);
+              }
+              pthread_mutex_unlock(&share->mutex);
+              share->init_error = TRUE;
+              share->init_error_time = (time_t) time((time_t*) 0);
+              share->init = TRUE;
+              spider_free_share(share);
+              spider_close_sys_table(thd, table_tables,
+                &open_tables_backup, FALSE);
+              table_tables = NULL;
+              goto error_open_sys_table;
+            }
+          } else {
+            memcpy(share->alter_table.tmp_link_statuses, share->link_statuses,
+              sizeof(long) * share->all_link_count);
+            share->link_status_init = TRUE;
+          }
+          spider_close_sys_table(thd, table_tables,
+            &open_tables_backup, FALSE);
+          table_tables = NULL;
+        }
+        share->have_recovery_link = spider_conn_check_recovery_link(share);
+        if (init_mem_root)
+        {
+          free_root(&mem_root, MYF(0));
+          init_mem_root = FALSE;
+        }
+      }
+      for (roop_count = 0;
+        roop_count < (int) spider_param_udf_table_mon_mutex_count();
+        roop_count++
+      ) {
+        if (spider_bit_is_set(share->table_mon_mutex_bitmap, roop_count))
+          pthread_mutex_unlock(&spider_udf_table_mon_mutexes[roop_count]);
+      }
+      pthread_mutex_unlock(&share->mutex);
+    }
+
+    semi_table_lock_conn = spider_param_semi_table_lock_connection(thd,
+      share->semi_table_lock_conn);
+    if (semi_table_lock_conn)
+      first_byte = '0' +
+        spider_param_semi_table_lock(thd, share->semi_table_lock);
+    else
+      first_byte = '0';
+
+    if (!(spider->wide_handler->trx = spider_get_trx(thd, TRUE, error_num)))
+    {
+      share->init_error = TRUE;
+      share->init_error_time = (time_t) time((time_t*) 0);
+      share->init = TRUE;
+      spider_free_share(share);
+      goto error_but_no_delete;
+    }
+    spider->set_error_mode();
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+    if (!share->sts_spider_init)
+    {
+      pthread_mutex_lock(&share->mutex);
+      if (!share->sts_spider_init)
+      {
+        if ((*error_num = spider_create_spider_object_for_share(
+          spider->wide_handler->trx, share, &share->sts_spider)))
+        {
+          pthread_mutex_unlock(&share->mutex);
+          share->init_error = TRUE;
+          share->init_error_time = (time_t) time((time_t*) 0);
+          share->init = TRUE;
+          spider_free_share(share);
+          goto error_sts_spider_init;
+        }
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+        share->sts_thread = &spider_table_sts_threads[
+          hash_value % spider_param_table_sts_thread_count()];
+#else
+        share->sts_thread = &spider_table_sts_threads[
+          my_calc_hash(&spider_open_tables, (uchar*) table_name, length) %
+          spider_param_table_sts_thread_count()];
+#endif
+        share->sts_spider_init = TRUE;
+      }
+      pthread_mutex_unlock(&share->mutex);
+    }
+
+    if (!share->crd_spider_init)
+    {
+      pthread_mutex_lock(&share->mutex);
+      if (!share->crd_spider_init)
+      {
+        if ((*error_num = spider_create_spider_object_for_share(
+          spider->wide_handler->trx, share, &share->crd_spider)))
+        {
+          pthread_mutex_unlock(&share->mutex);
+          share->init_error = TRUE;
+          share->init_error_time = (time_t) time((time_t*) 0);
+          share->init = TRUE;
+          spider_free_share(share);
+          goto error_crd_spider_init;
+        }
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+        share->crd_thread = &spider_table_crd_threads[
+          hash_value % spider_param_table_crd_thread_count()];
+#else
+        share->crd_thread = &spider_table_crd_threads[
+          my_calc_hash(&spider_open_tables, (uchar*) table_name, length) %
+          spider_param_table_crd_thread_count()];
+#endif
+        share->crd_spider_init = TRUE;
+      }
+      pthread_mutex_unlock(&share->mutex);
+    }
+#endif
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+    if (
+      sql_command != SQLCOM_DROP_TABLE &&
+      sql_command != SQLCOM_ALTER_TABLE &&
+      sql_command != SQLCOM_SHOW_CREATE &&
+      (*error_num = spider_create_mon_threads(spider->wide_handler->trx,
+        share))
+    ) {
+      share->init_error = TRUE;
+      share->init_error_time = (time_t) time((time_t*) 0);
+      share->init = TRUE;
+      spider_free_share(share);
+      goto error_but_no_delete;
+    }
+#endif
+
+    if (!(spider->conn_keys = (char **)
+      spider_bulk_alloc_mem(spider_current_trx, 47,
+        __func__, __FILE__, __LINE__, MYF(MY_WME | MY_ZEROFILL),
+        &spider->conn_keys, sizeof(char *) * share->link_count,
+        &tmp_name, sizeof(char) * share->conn_keys_charlen,
+        &spider->conns, sizeof(SPIDER_CONN *) * share->link_count,
+        &spider->conn_link_idx, sizeof(uint) * share->link_count,
+        &spider->conn_can_fo, sizeof(uchar) * share->link_bitmap_size,
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+        &spider->hs_r_conn_keys, sizeof(char *) * share->link_count,
+        &tmp_hs_r_name, sizeof(char) * share->hs_read_conn_keys_charlen,
+        &spider->hs_r_conns, sizeof(SPIDER_CONN *) * share->link_count,
+        &spider->hs_r_conn_ages, sizeof(ulonglong) * share->link_count,
+        &spider->hs_w_conn_keys, sizeof(char *) * share->link_count,
+        &tmp_hs_w_name, sizeof(char) * share->hs_write_conn_keys_charlen,
+        &spider->hs_w_conns, sizeof(SPIDER_CONN *) * share->link_count,
+        &spider->hs_w_conn_ages, sizeof(ulonglong) * share->link_count,
+#endif
+        &spider->sql_kind, sizeof(uint) * share->link_count,
+        &spider->connection_ids, sizeof(ulonglong) * share->link_count,
+        &spider->conn_kind, sizeof(uint) * share->link_count,
+        &spider->db_request_id, sizeof(ulonglong) * share->link_count,
+        &spider->db_request_phase, sizeof(uchar) * share->link_bitmap_size,
+        &spider->m_handler_opened, sizeof(uchar) * share->link_bitmap_size,
+        &spider->m_handler_id, sizeof(uint) * share->link_count,
+        &spider->m_handler_cid, sizeof(char *) * share->link_count,
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+        &spider->r_handler_opened, sizeof(uchar) * share->link_bitmap_size,
+        &spider->r_handler_id, sizeof(uint) * share->link_count,
+        &spider->r_handler_index, sizeof(uint) * share->link_count,
+        &spider->w_handler_opened, sizeof(uchar) * share->link_bitmap_size,
+        &spider->w_handler_id, sizeof(uint) * share->link_count,
+        &spider->w_handler_index, sizeof(uint) * share->link_count,
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+        &spider->do_hs_direct_update, sizeof(uchar) * share->link_bitmap_size,
+        &spider->hs_r_ret_fields, sizeof(uint32 *) * share->link_count,
+        &spider->hs_w_ret_fields, sizeof(uint32 *) * share->link_count,
+        &spider->hs_r_ret_fields_num, sizeof(size_t) * share->link_count,
+        &spider->hs_w_ret_fields_num, sizeof(size_t) * share->link_count,
+        &tmp_hs_r_ret_fields,
+          sizeof(uint32) * share->link_count * table_share->fields,
+        &tmp_hs_w_ret_fields,
+          sizeof(uint32) * share->link_count * table_share->fields,
+        &spider->tmp_column_bitmap, sizeof(uchar) * share->bitmap_size,
+#endif
+#endif
+        &tmp_cid, sizeof(char) * (SPIDER_SQL_HANDLER_CID_LEN + 1) *
+          share->link_count,
+        &spider->need_mons, sizeof(int) * share->link_count,
+        &spider->quick_targets, sizeof(void *) * share->link_count,
+        &result_list->upd_tmp_tbls, sizeof(TABLE *) * share->link_count,
+        &result_list->upd_tmp_tbl_prms,
+          sizeof(TMP_TABLE_PARAM) * share->link_count,
+        &result_list->tmp_table_join_first,
+          sizeof(uchar) * share->link_bitmap_size,
+        &result_list->tmp_table_created,
+          sizeof(uchar) * share->link_bitmap_size,
+#ifdef HA_CAN_BULK_ACCESS
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+        &result_list->hs_r_bulk_open_index,
+          sizeof(uchar) * share->link_bitmap_size,
+        &result_list->hs_w_bulk_open_index,
+          sizeof(uchar) * share->link_bitmap_size,
+#endif
+#endif
+        &result_list->sql_kind_backup, sizeof(uint) * share->link_count,
+        &result_list->casual_read, sizeof(int) * share->link_count,
+        &spider->dbton_handler,
+          sizeof(spider_db_handler *) * SPIDER_DBTON_SIZE,
+        NullS))
+    ) {
+      share->init_error = TRUE;
+      share->init_error_time = (time_t) time((time_t*) 0);
+      share->init = TRUE;
+      spider_free_share(share);
+      goto error_but_no_delete;
+    }
+    memcpy(tmp_name, share->conn_keys[0], share->conn_keys_charlen);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    memcpy(tmp_hs_r_name, share->hs_read_conn_keys[0],
+      share->hs_read_conn_keys_charlen);
+    memcpy(tmp_hs_w_name, share->hs_write_conn_keys[0],
+      share->hs_write_conn_keys_charlen);
+#endif
+
+    spider->conn_keys_first_ptr = tmp_name;
+    for (roop_count = 0; roop_count < (int) share->link_count; roop_count++)
+    {
+      spider->conn_keys[roop_count] = tmp_name;
+      *tmp_name = first_byte;
+      tmp_name += share->conn_keys_lengths[roop_count] + 1;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      spider->hs_r_conn_keys[roop_count] = tmp_hs_r_name;
+      tmp_hs_r_name += share->hs_read_conn_keys_lengths[roop_count] + 1;
+      spider->hs_w_conn_keys[roop_count] = tmp_hs_w_name;
+      tmp_hs_w_name += share->hs_write_conn_keys_lengths[roop_count] + 1;
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+      spider->hs_r_ret_fields[roop_count] = tmp_hs_r_ret_fields;
+      tmp_hs_r_ret_fields += table_share->fields;
+      spider->hs_w_ret_fields[roop_count] = tmp_hs_w_ret_fields;
+      tmp_hs_w_ret_fields += table_share->fields;
+#endif
+#endif
+      spider->m_handler_cid[roop_count] = tmp_cid;
+      tmp_cid += SPIDER_SQL_HANDLER_CID_LEN + 1;
+      result_list->upd_tmp_tbl_prms[roop_count].init();
+      result_list->upd_tmp_tbl_prms[roop_count].field_count = 1;
+      spider->conn_kind[roop_count] = SPIDER_CONN_KIND_MYSQL;
+    }
+    spider_trx_set_link_idx_for_all(spider);
+
+    for (roop_count = 0; roop_count < (int) share->use_dbton_count;
+      roop_count++)
+    {
+      uint dbton_id = share->use_dbton_ids[roop_count];
+      if (!(spider->dbton_handler[dbton_id] =
+        spider_dbton[dbton_id].create_db_handler(spider,
+        share->dbton_share[dbton_id])))
+      {
+        *error_num = HA_ERR_OUT_OF_MEM;
+        break;
+      }
+      if ((*error_num = spider->dbton_handler[dbton_id]->init()))
+      {
+        break;
+      }
+    }
+    if (roop_count < (int) share->use_dbton_count)
+    {
+      for (; roop_count >= 0; roop_count--)
+      {
+        uint dbton_id = share->use_dbton_ids[roop_count];
+        if (spider->dbton_handler[dbton_id])
+        {
+          delete spider->dbton_handler[dbton_id];
+          spider->dbton_handler[dbton_id] = NULL;
+        }
+      }
+      share->init_error = TRUE;
+      share->init_error_time = (time_t) time((time_t*) 0);
+      share->init = TRUE;
+      goto error_after_alloc_conn_keys;
+    }
+
+    if (
+      sql_command != SQLCOM_DROP_TABLE &&
+      sql_command != SQLCOM_ALTER_TABLE &&
+      sql_command != SQLCOM_SHOW_CREATE
+    ) {
+      for (
+        roop_count = spider_conn_link_idx_next(share->link_statuses,
+          spider->conn_link_idx, -1, share->link_count,
+          SPIDER_LINK_STATUS_RECOVERY);
+        roop_count < (int) share->link_count;
+        roop_count = spider_conn_link_idx_next(share->link_statuses,
+          spider->conn_link_idx, roop_count, share->link_count,
+          SPIDER_LINK_STATUS_RECOVERY)
+      ) {
+        if (
+          !(spider->conns[roop_count] =
+            spider_get_conn(share, roop_count, spider->conn_keys[roop_count],
+              spider->wide_handler->trx, spider, FALSE, TRUE,
+              SPIDER_CONN_KIND_MYSQL,
+              error_num))
+        ) {
+          if (
+            share->monitoring_kind[roop_count] &&
+            spider->need_mons[roop_count]
+          ) {
+            *error_num = spider_ping_table_mon_from_table(
+                spider->wide_handler->trx,
+                spider->wide_handler->trx->thd,
+                share,
+                roop_count,
+                (uint32) share->monitoring_sid[roop_count],
+                share->table_name,
+                share->table_name_length,
+                spider->conn_link_idx[roop_count],
+                NULL,
+                0,
+                share->monitoring_kind[roop_count],
+                share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
+                FALSE
+              );
+          }
+          share->init_error = TRUE;
+          share->init_error_time = (time_t) time((time_t*) 0);
+          share->init = TRUE;
+          goto error_after_alloc_dbton_handler;
+        }
+        spider->conns[roop_count]->error_mode &= spider->error_mode;
+      }
+    }
+    search_link_idx = spider_conn_first_link_idx(thd,
+      share->link_statuses, share->access_balances, spider->conn_link_idx,
+      share->link_count, SPIDER_LINK_STATUS_OK);
+    if (search_link_idx == -1)
+    {
+      char *db = (char *) my_alloca(
+        table_share->db.length + 1 + table_share->table_name.length + 1);
+      if (!db)
+      {
+        *error_num = HA_ERR_OUT_OF_MEM;
+        share->init_error = TRUE;
+        share->init_error_time = (time_t) time((time_t*) 0);
+        share->init = TRUE;
+        goto error_after_alloc_dbton_handler;
+      }
+      char *table_name = db + table_share->db.length + 1;
+      memcpy(db, table_share->db.str, table_share->db.length);
+      db[table_share->db.length] = '\0';
+      memcpy(table_name, table_share->table_name.str,
+        table_share->table_name.length);
+      table_name[table_share->table_name.length] = '\0';
+      my_printf_error(ER_SPIDER_ALL_LINKS_FAILED_NUM,
+        ER_SPIDER_ALL_LINKS_FAILED_STR, MYF(0), db, table_name);
+      my_afree(db);
+      *error_num = ER_SPIDER_ALL_LINKS_FAILED_NUM;
+      share->init_error = TRUE;
+      share->init_error_time = (time_t) time((time_t*) 0);
+      share->init = TRUE;
+      goto error_after_alloc_dbton_handler;
+    } else if (search_link_idx == -2)
+    {
+      *error_num = HA_ERR_OUT_OF_MEM;
+      share->init_error = TRUE;
+      share->init_error_time = (time_t) time((time_t*) 0);
+      share->init = TRUE;
+      goto error_after_alloc_dbton_handler;
+    }
+    spider->search_link_idx = search_link_idx;
+
+    same_server_link = spider_param_same_server_link(thd);
+    load_sts_at_startup =
+      spider_param_load_sts_at_startup(share->load_sts_at_startup);
+    load_crd_at_startup =
+      spider_param_load_crd_at_startup(share->load_crd_at_startup);
+    if (
+      sql_command != SQLCOM_DROP_TABLE &&
+      sql_command != SQLCOM_ALTER_TABLE &&
+      sql_command != SQLCOM_SHOW_CREATE &&
+      !spider->error_mode &&
+      (
+        !same_server_link ||
+        load_sts_at_startup ||
+        load_crd_at_startup
+      )
+    ) {
+      SPIDER_INIT_ERROR_TABLE *spider_init_error_table;
+      sts_interval = spider_param_sts_interval(thd, share->sts_interval);
+      sts_mode = spider_param_sts_mode(thd, share->sts_mode);
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+      sts_sync = spider_param_sts_sync(thd, share->sts_sync);
+      auto_increment_mode = spider_param_auto_increment_mode(thd,
+        share->auto_increment_mode);
+      if (auto_increment_mode == 1)
+        sts_sync = 0;
+#endif
+      crd_interval = spider_param_crd_interval(thd, share->crd_interval);
+      crd_mode = spider_param_crd_mode(thd, share->crd_mode);
+      if (crd_mode == 3)
+        crd_mode = 1;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+      crd_sync = spider_param_crd_sync(thd, share->crd_sync);
+#endif
+      time_t tmp_time = (time_t) time((time_t*) 0);
+      pthread_mutex_lock(&share->sts_mutex);
+      pthread_mutex_lock(&share->crd_mutex);
+      if ((spider_init_error_table =
+        spider_get_init_error_table(spider->wide_handler->trx, share, FALSE)))
+      {
+        DBUG_PRINT("info",("spider diff1=%f",
+          difftime(tmp_time, spider_init_error_table->init_error_time)));
+        if (difftime(tmp_time,
+          spider_init_error_table->init_error_time) <
+          spider_param_table_init_error_interval())
+        {
+          *error_num = spider_init_error_table->init_error;
+          if (spider_init_error_table->init_error_with_message)
+            my_message(spider_init_error_table->init_error,
+              spider_init_error_table->init_error_msg, MYF(0));
+          share->init_error = TRUE;
+          share->init = TRUE;
+          pthread_mutex_unlock(&share->crd_mutex);
+          pthread_mutex_unlock(&share->sts_mutex);
+          goto error_after_alloc_dbton_handler;
+        }
+      }
+
+      if (
+        (
+          !same_server_link ||
+          load_sts_at_startup
+        ) &&
+        (*error_num = spider_get_sts(share, spider->search_link_idx, tmp_time,
+          spider, sts_interval, sts_mode,
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+          sts_sync,
+#endif
+          1, HA_STATUS_VARIABLE | HA_STATUS_CONST | HA_STATUS_AUTO))
+      ) {
+        if (*error_num != ER_SPIDER_SYS_TABLE_VERSION_NUM)
+        {
+          thd->clear_error();
+        } else {
+          pthread_mutex_unlock(&share->crd_mutex);
+          pthread_mutex_unlock(&share->sts_mutex);
+          share->init_error = TRUE;
+          share->init_error_time = (time_t) time((time_t*) 0);
+          share->init = TRUE;
+          goto error_after_alloc_dbton_handler;
+        }
+      }
+      if (
+        (
+          !same_server_link ||
+          load_crd_at_startup
+        ) &&
+        (*error_num = spider_get_crd(share, spider->search_link_idx, tmp_time,
+          spider, table, crd_interval, crd_mode,
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+          crd_sync,
+#endif
+          1))
+      ) {
+        if (*error_num != ER_SPIDER_SYS_TABLE_VERSION_NUM)
+        {
+          thd->clear_error();
+        } else {
+          pthread_mutex_unlock(&share->crd_mutex);
+          pthread_mutex_unlock(&share->sts_mutex);
+          share->init_error = TRUE;
+          share->init_error_time = (time_t) time((time_t*) 0);
+          share->init = TRUE;
+          goto error_after_alloc_dbton_handler;
+        }
+      }
+      pthread_mutex_unlock(&share->crd_mutex);
+      pthread_mutex_unlock(&share->sts_mutex);
+    }
+
+    share->init = TRUE;
+  } else {
+    share->use_count++;
+    pthread_mutex_unlock(&spider_tbl_mutex);
+
+    int sleep_cnt = 0;
+    while (!share->init)
+    {
+      // avoid for dead loop
+      if (sleep_cnt++ > 1000)
+      {
+        fprintf(stderr, " [WARN SPIDER RESULT] "
+          "Wait share->init too long, table_name %s %s %ld\n",
+          share->table_name, share->tgt_hosts[0], share->tgt_ports[0]);
+        *error_num = ER_SPIDER_TABLE_OPEN_TIMEOUT_NUM;
+        my_printf_error(ER_SPIDER_TABLE_OPEN_TIMEOUT_NUM,
+          ER_SPIDER_TABLE_OPEN_TIMEOUT_STR, MYF(0),
+          table_share->db.str, table_share->table_name.str);
+        spider_free_share(share);
+        goto error_but_no_delete;
+      }
+      my_sleep(10000); // wait 10 ms
+    }
+
+    if (!share->link_status_init)
+    {
+      pthread_mutex_lock(&share->mutex);
+      for (roop_count = 0;
+        roop_count < (int) spider_param_udf_table_mon_mutex_count();
+        roop_count++
+      ) {
+        if (spider_bit_is_set(share->table_mon_mutex_bitmap, roop_count))
+          pthread_mutex_lock(&spider_udf_table_mon_mutexes[roop_count]);
+      }
+      if (!share->link_status_init)
+      {
+        DBUG_ASSERT(!table_tables);
+        /*
+          The link statuses need to be refreshed from the spider_tables table
+          if the operation:
+          - Is not a DROP TABLE on a permanent table; or
+          - Is an ALTER TABLE.
+
+          Note that SHOW CREATE TABLE is not excluded, because the commands
+          that follow it require up-to-date link statuses.
+        */
+        if ((table_share->tmp_table == NO_TMP_TABLE &&
+             sql_command != SQLCOM_DROP_TABLE) ||
+            /* for alter change link status */
+            sql_command == SQLCOM_ALTER_TABLE)
+        {
+          SPD_INIT_ALLOC_ROOT(&mem_root, 4096, 0, MYF(MY_WME));
+          init_mem_root = TRUE;
+
+          if (
+            !(table_tables = spider_open_sys_table(
+              thd, SPIDER_SYS_TABLES_TABLE_NAME_STR,
+              SPIDER_SYS_TABLES_TABLE_NAME_LEN, FALSE, &open_tables_backup,
+              FALSE, error_num))
+          ) {
+            for (roop_count = 0;
+              roop_count < (int) spider_param_udf_table_mon_mutex_count();
+              roop_count++
+            ) {
+              if (spider_bit_is_set(share->table_mon_mutex_bitmap, roop_count))
+                pthread_mutex_unlock(&spider_udf_table_mon_mutexes[roop_count]);
+            }
+            pthread_mutex_unlock(&share->mutex);
+            spider_free_share(share);
+            goto error_open_sys_table;
+          }
+          *error_num = spider_get_link_statuses(table_tables, share,
+            &mem_root);
+          if (*error_num)
+          {
+            if (
+              *error_num != HA_ERR_KEY_NOT_FOUND &&
+              *error_num != HA_ERR_END_OF_FILE
+            ) {
+              for (roop_count = 0;
+                roop_count < (int) spider_param_udf_table_mon_mutex_count();
+                roop_count++
+              ) {
+                if (spider_bit_is_set(share->table_mon_mutex_bitmap, roop_count))
+                  pthread_mutex_unlock(&spider_udf_table_mon_mutexes[roop_count]);
+              }
+              pthread_mutex_unlock(&share->mutex);
+              spider_free_share(share);
+              spider_close_sys_table(thd, table_tables,
+                &open_tables_backup, FALSE);
+              table_tables = NULL;
+              goto error_open_sys_table;
+            }
+          } else {
+            memcpy(share->alter_table.tmp_link_statuses, share->link_statuses,
+              sizeof(long) * share->all_link_count);
+            share->link_status_init = TRUE;
+          }
+          spider_close_sys_table(thd, table_tables,
+            &open_tables_backup, FALSE);
+          table_tables = NULL;
+        }
+        share->have_recovery_link = spider_conn_check_recovery_link(share);
+        if (init_mem_root)
+        {
+          free_root(&mem_root, MYF(0));
+          init_mem_root = FALSE;
+        }
+      }
+      for (roop_count = 0;
+        roop_count < (int) spider_param_udf_table_mon_mutex_count();
+        roop_count++
+      ) {
+        if (spider_bit_is_set(share->table_mon_mutex_bitmap, roop_count))
+          pthread_mutex_unlock(&spider_udf_table_mon_mutexes[roop_count]);
+      }
+      pthread_mutex_unlock(&share->mutex);
+    }
+
+    semi_table_lock_conn = spider_param_semi_table_lock_connection(thd,
+      share->semi_table_lock_conn);
+    if (semi_table_lock_conn)
+      first_byte = '0' +
+        spider_param_semi_table_lock(thd, share->semi_table_lock);
+    else
+      first_byte = '0';
+
+    spider->share = share;
+    if (!(spider->wide_handler->trx = spider_get_trx(thd, TRUE, error_num)))
+    {
+      spider_free_share(share);
+      goto error_but_no_delete;
+    }
+    spider->set_error_mode();
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+    if (!share->sts_spider_init)
+    {
+      pthread_mutex_lock(&share->mutex);
+      if (!share->sts_spider_init)
+      {
+        if ((*error_num = spider_create_spider_object_for_share(
+          spider->wide_handler->trx, share, &share->sts_spider)))
+        {
+          pthread_mutex_unlock(&share->mutex);
+          spider_free_share(share);
+          goto error_sts_spider_init;
+        }
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+        share->sts_thread = &spider_table_sts_threads[
+          hash_value % spider_param_table_sts_thread_count()];
+#else
+        share->sts_thread = &spider_table_sts_threads[
+          my_calc_hash(&spider_open_tables, (uchar*) table_name, length) %
+          spider_param_table_sts_thread_count()];
+#endif
+        share->sts_spider_init = TRUE;
+      }
+      pthread_mutex_unlock(&share->mutex);
+    }
+
+    if (!share->crd_spider_init)
+    {
+      pthread_mutex_lock(&share->mutex);
+      if (!share->crd_spider_init)
+      {
+        if ((*error_num = spider_create_spider_object_for_share(
+          spider->wide_handler->trx, share, &share->crd_spider)))
+        {
+          pthread_mutex_unlock(&share->mutex);
+          spider_free_share(share);
+          goto error_crd_spider_init;
+        }
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+        share->crd_thread = &spider_table_crd_threads[
+          hash_value % spider_param_table_crd_thread_count()];
+#else
+        share->crd_thread = &spider_table_crd_threads[
+          my_calc_hash(&spider_open_tables, (uchar*) table_name, length) %
+          spider_param_table_crd_thread_count()];
+#endif
+        share->crd_spider_init = TRUE;
+      }
+      pthread_mutex_unlock(&share->mutex);
+    }
+#endif
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+    if (
+      sql_command != SQLCOM_DROP_TABLE &&
+      sql_command != SQLCOM_ALTER_TABLE &&
+      sql_command != SQLCOM_SHOW_CREATE &&
+      (*error_num = spider_create_mon_threads(spider->wide_handler->trx,
+        share))
+    ) {
+      spider_free_share(share);
+      goto error_but_no_delete;
+    }
+#endif
+
+    if (!(spider->conn_keys = (char **)
+      spider_bulk_alloc_mem(spider_current_trx, 49,
+        __func__, __FILE__, __LINE__, MYF(MY_WME | MY_ZEROFILL),
+        &spider->conn_keys, sizeof(char *) * share->link_count,
+        &tmp_name, sizeof(char) * share->conn_keys_charlen,
+        &spider->conns, sizeof(SPIDER_CONN *) * share->link_count,
+        &spider->conn_link_idx, sizeof(uint) * share->link_count,
+        &spider->conn_can_fo, sizeof(uchar) * share->link_bitmap_size,
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+        &spider->hs_r_conn_keys, sizeof(char *) * share->link_count,
+        &tmp_hs_r_name, sizeof(char) * share->hs_read_conn_keys_charlen,
+        &spider->hs_r_conns, sizeof(SPIDER_CONN *) * share->link_count,
+        &spider->hs_r_conn_ages, sizeof(ulonglong) * share->link_count,
+        &spider->hs_w_conn_keys, sizeof(char *) * share->link_count,
+        &tmp_hs_w_name, sizeof(char) * share->hs_write_conn_keys_charlen,
+        &spider->hs_w_conns, sizeof(SPIDER_CONN *) * share->link_count,
+        &spider->hs_w_conn_ages, sizeof(ulonglong) * share->link_count,
+#endif
+        &spider->sql_kind, sizeof(uint) * share->link_count,
+        &spider->connection_ids, sizeof(ulonglong) * share->link_count,
+        &spider->conn_kind, sizeof(uint) * share->link_count,
+        &spider->db_request_id, sizeof(ulonglong) * share->link_count,
+        &spider->db_request_phase, sizeof(uchar) * share->link_bitmap_size,
+        &spider->m_handler_opened, sizeof(uchar) * share->link_bitmap_size,
+        &spider->m_handler_id, sizeof(uint) * share->link_count,
+        &spider->m_handler_cid, sizeof(char *) * share->link_count,
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+        &spider->r_handler_opened, sizeof(uchar) * share->link_bitmap_size,
+        &spider->r_handler_id, sizeof(uint) * share->link_count,
+        &spider->r_handler_index, sizeof(uint) * share->link_count,
+        &spider->w_handler_opened, sizeof(uchar) * share->link_bitmap_size,
+        &spider->w_handler_id, sizeof(uint) * share->link_count,
+        &spider->w_handler_index, sizeof(uint) * share->link_count,
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+        &spider->do_hs_direct_update, sizeof(uchar) * share->link_bitmap_size,
+        &spider->hs_r_ret_fields, sizeof(uint32 *) * share->link_count,
+        &spider->hs_w_ret_fields, sizeof(uint32 *) * share->link_count,
+        &spider->hs_r_ret_fields_num, sizeof(size_t) * share->link_count,
+        &spider->hs_w_ret_fields_num, sizeof(size_t) * share->link_count,
+        &tmp_hs_r_ret_fields,
+          sizeof(uint32) * share->link_count * table_share->fields,
+        &tmp_hs_w_ret_fields,
+          sizeof(uint32) * share->link_count * table_share->fields,
+        &spider->tmp_column_bitmap, sizeof(uchar) * share->bitmap_size,
+#endif
+#endif
+        &tmp_cid, sizeof(char) * (SPIDER_SQL_HANDLER_CID_LEN + 1) *
+          share->link_count,
+        &spider->need_mons, sizeof(int) * share->link_count,
+        &spider->quick_targets, sizeof(void *) * share->link_count,
+        &result_list->upd_tmp_tbls, sizeof(TABLE *) * share->link_count,
+        &result_list->upd_tmp_tbl_prms,
+          sizeof(TMP_TABLE_PARAM) * share->link_count,
+        &result_list->tmp_table_join_first,
+          sizeof(uchar) * share->link_bitmap_size,
+        &result_list->tmp_table_created,
+          sizeof(uchar) * share->link_bitmap_size,
+#ifdef HA_CAN_BULK_ACCESS
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+        &result_list->hs_r_bulk_open_index,
+          sizeof(uchar) * share->link_bitmap_size,
+        &result_list->hs_w_bulk_open_index,
+          sizeof(uchar) * share->link_bitmap_size,
+#endif
+#endif
+        &result_list->sql_kind_backup, sizeof(uint) * share->link_count,
+        &result_list->casual_read, sizeof(int) * share->link_count,
+        &spider->dbton_handler,
+          sizeof(spider_db_handler *) * SPIDER_DBTON_SIZE,
+        NullS))
+    ) {
+      spider_free_share(share);
+      goto error_but_no_delete;
+    }
+    memcpy(tmp_name, share->conn_keys[0], share->conn_keys_charlen);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    memcpy(tmp_hs_r_name, share->hs_read_conn_keys[0],
+      share->hs_read_conn_keys_charlen);
+    memcpy(tmp_hs_w_name, share->hs_write_conn_keys[0],
+      share->hs_write_conn_keys_charlen);
+#endif
+
+    spider->conn_keys_first_ptr = tmp_name;
+    for (roop_count = 0; roop_count < (int) share->link_count; roop_count++)
+    {
+      spider->conn_keys[roop_count] = tmp_name;
+      *tmp_name = first_byte;
+      tmp_name += share->conn_keys_lengths[roop_count] + 1;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      spider->hs_r_conn_keys[roop_count] = tmp_hs_r_name;
+      tmp_hs_r_name += share->hs_read_conn_keys_lengths[roop_count] + 1;
+      spider->hs_w_conn_keys[roop_count] = tmp_hs_w_name;
+      tmp_hs_w_name += share->hs_write_conn_keys_lengths[roop_count] + 1;
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+      spider->hs_r_ret_fields[roop_count] = tmp_hs_r_ret_fields;
+      tmp_hs_r_ret_fields += table_share->fields;
+      spider->hs_w_ret_fields[roop_count] = tmp_hs_w_ret_fields;
+      tmp_hs_w_ret_fields += table_share->fields;
+#endif
+#endif
+      spider->m_handler_cid[roop_count] = tmp_cid;
+      tmp_cid += SPIDER_SQL_HANDLER_CID_LEN + 1;
+      result_list->upd_tmp_tbl_prms[roop_count].init();
+      result_list->upd_tmp_tbl_prms[roop_count].field_count = 1;
+      spider->conn_kind[roop_count] = SPIDER_CONN_KIND_MYSQL;
+    }
+    spider_trx_set_link_idx_for_all(spider);
+
+    for (roop_count = 0; roop_count < (int) share->use_dbton_count;
+      roop_count++)
+    {
+      uint dbton_id = share->use_dbton_ids[roop_count];
+      if (!(spider->dbton_handler[dbton_id] =
+        spider_dbton[dbton_id].create_db_handler(spider,
+        share->dbton_share[dbton_id])))
+      {
+        *error_num = HA_ERR_OUT_OF_MEM;
+        break;
+      }
+      if ((*error_num = spider->dbton_handler[dbton_id]->init()))
+      {
+        break;
+      }
+    }
+    if (roop_count < (int) share->use_dbton_count)
+    {
+      for (; roop_count >= 0; roop_count--)
+      {
+        uint dbton_id = share->use_dbton_ids[roop_count];
+        if (spider->dbton_handler[dbton_id])
+        {
+          delete spider->dbton_handler[dbton_id];
+          spider->dbton_handler[dbton_id] = NULL;
+        }
+      }
+      goto error_after_alloc_conn_keys;
+    }
+
+    if (
+      sql_command != SQLCOM_DROP_TABLE &&
+      sql_command != SQLCOM_ALTER_TABLE &&
+      sql_command != SQLCOM_SHOW_CREATE
+    ) {
+      for (
+        roop_count = spider_conn_link_idx_next(share->link_statuses,
+          spider->conn_link_idx, -1, share->link_count,
+          SPIDER_LINK_STATUS_RECOVERY);
+        roop_count < (int) share->link_count;
+        roop_count = spider_conn_link_idx_next(share->link_statuses,
+          spider->conn_link_idx, roop_count, share->link_count,
+          SPIDER_LINK_STATUS_RECOVERY)
+      ) {
+        if (
+          !(spider->conns[roop_count] =
+            spider_get_conn(share, roop_count, spider->conn_keys[roop_count],
+              spider->wide_handler->trx, spider, FALSE, TRUE,
+              SPIDER_CONN_KIND_MYSQL,
+              error_num))
+        ) {
+          if (
+            share->monitoring_kind[roop_count] &&
+            spider->need_mons[roop_count]
+          ) {
+            *error_num = spider_ping_table_mon_from_table(
+                spider->wide_handler->trx,
+                spider->wide_handler->trx->thd,
+                share,
+                roop_count,
+                (uint32) share->monitoring_sid[roop_count],
+                share->table_name,
+                share->table_name_length,
+                spider->conn_link_idx[roop_count],
+                NULL,
+                0,
+                share->monitoring_kind[roop_count],
+                share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
+                FALSE
+              );
+          }
+          goto error_after_alloc_dbton_handler;
+        }
+        spider->conns[roop_count]->error_mode &= spider->error_mode;
+      }
+    }
+    search_link_idx = spider_conn_first_link_idx(thd,
+      share->link_statuses, share->access_balances, spider->conn_link_idx,
+      share->link_count, SPIDER_LINK_STATUS_OK);
+    if (search_link_idx == -1)
+    {
+      char *db = (char *) my_alloca(
+        table_share->db.length + 1 + table_share->table_name.length + 1);
+      if (!db)
+      {
+        *error_num = HA_ERR_OUT_OF_MEM;
+        goto error_after_alloc_dbton_handler;
+      }
+      char *table_name = db + table_share->db.length + 1;
+      memcpy(db, table_share->db.str, table_share->db.length);
+      db[table_share->db.length] = '\0';
+      memcpy(table_name, table_share->table_name.str,
+        table_share->table_name.length);
+      table_name[table_share->table_name.length] = '\0';
+      my_printf_error(ER_SPIDER_ALL_LINKS_FAILED_NUM,
+        ER_SPIDER_ALL_LINKS_FAILED_STR, MYF(0), db, table_name);
+      my_afree(db);
+      *error_num = ER_SPIDER_ALL_LINKS_FAILED_NUM;
+      goto error_after_alloc_dbton_handler;
+    } else if (search_link_idx == -2)
+    {
+      *error_num = HA_ERR_OUT_OF_MEM;
+      goto error_after_alloc_dbton_handler;
+    }
+    spider->search_link_idx = search_link_idx;
+
+    if (share->init_error)
+    {
+      pthread_mutex_lock(&share->sts_mutex);
+      pthread_mutex_lock(&share->crd_mutex);
+      if (share->init_error)
+      {
+        same_server_link = spider_param_same_server_link(thd);
+        load_sts_at_startup =
+          spider_param_load_sts_at_startup(share->load_sts_at_startup);
+        load_crd_at_startup =
+          spider_param_load_crd_at_startup(share->load_crd_at_startup);
+        if (
+          sql_command != SQLCOM_DROP_TABLE &&
+          sql_command != SQLCOM_ALTER_TABLE &&
+          sql_command != SQLCOM_SHOW_CREATE &&
+          !spider->error_mode &&
+          (
+            !same_server_link ||
+            load_sts_at_startup ||
+            load_crd_at_startup
+          )
+        ) {
+          SPIDER_INIT_ERROR_TABLE *spider_init_error_table;
+          sts_interval = spider_param_sts_interval(thd, share->sts_interval);
+          sts_mode = spider_param_sts_mode(thd, share->sts_mode);
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+          sts_sync = spider_param_sts_sync(thd, share->sts_sync);
+          auto_increment_mode = spider_param_auto_increment_mode(thd,
+            share->auto_increment_mode);
+          if (auto_increment_mode == 1)
+            sts_sync = 0;
+#endif
+          crd_interval = spider_param_crd_interval(thd, share->crd_interval);
+          crd_mode = spider_param_crd_mode(thd, share->crd_mode);
+          if (crd_mode == 3)
+            crd_mode = 1;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+          crd_sync = spider_param_crd_sync(thd, share->crd_sync);
+#endif
+          time_t tmp_time = (time_t) time((time_t*) 0);
+          if ((spider_init_error_table =
+            spider_get_init_error_table(spider->wide_handler->trx, share,
+              FALSE)))
+          {
+            DBUG_PRINT("info",("spider diff2=%f",
+              difftime(tmp_time, spider_init_error_table->init_error_time)));
+            if (difftime(tmp_time,
+              spider_init_error_table->init_error_time) <
+              spider_param_table_init_error_interval())
+            {
+              *error_num = spider_init_error_table->init_error;
+              if (spider_init_error_table->init_error_with_message)
+                my_message(spider_init_error_table->init_error,
+                  spider_init_error_table->init_error_msg, MYF(0));
+              pthread_mutex_unlock(&share->crd_mutex);
+              pthread_mutex_unlock(&share->sts_mutex);
+              goto error_after_alloc_dbton_handler;
+            }
+          }
+
+          if (
+            (
+              !same_server_link ||
+              load_sts_at_startup
+            ) &&
+            (*error_num = spider_get_sts(share, spider->search_link_idx,
+              tmp_time, spider, sts_interval, sts_mode,
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+              sts_sync,
+#endif
+              1, HA_STATUS_VARIABLE | HA_STATUS_CONST | HA_STATUS_AUTO))
+          ) {
+            if (*error_num != ER_SPIDER_SYS_TABLE_VERSION_NUM)
+            {
+              thd->clear_error();
+            } else {
+              pthread_mutex_unlock(&share->crd_mutex);
+              pthread_mutex_unlock(&share->sts_mutex);
+              goto error_after_alloc_dbton_handler;
+            }
+          }
+          if (
+            (
+              !same_server_link ||
+              load_crd_at_startup
+            ) &&
+            (*error_num = spider_get_crd(share, spider->search_link_idx,
+              tmp_time, spider, table, crd_interval, crd_mode,
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+              crd_sync,
+#endif
+              1))
+          ) {
+            if (*error_num != ER_SPIDER_SYS_TABLE_VERSION_NUM)
+            {
+              thd->clear_error();
+            } else {
+              pthread_mutex_unlock(&share->crd_mutex);
+              pthread_mutex_unlock(&share->sts_mutex);
+              goto error_after_alloc_dbton_handler;
+            }
+          }
+        }
+        share->init_error = FALSE;
+      }
+      pthread_mutex_unlock(&share->crd_mutex);
+      pthread_mutex_unlock(&share->sts_mutex);
+    }
+  }
+
+  DBUG_PRINT("info",("spider share=%p", share));
+  DBUG_RETURN(share);
+
+error_after_alloc_dbton_handler:
+  for (roop_count = 0; roop_count < (int) share->use_dbton_count; ++roop_count)
+  {
+    uint dbton_id = share->use_dbton_ids[roop_count];
+    if (spider->dbton_handler[dbton_id])
+    {
+      delete spider->dbton_handler[dbton_id];
+      spider->dbton_handler[dbton_id] = NULL;
+    }
+  }
+error_after_alloc_conn_keys:
+  spider_free(spider_current_trx, spider->conn_keys, MYF(0));
+  spider->conn_keys = NULL;
+  spider_free_share(share);
+  goto error_but_no_delete;
+
+error_hash_insert:
+  spider_free_share_resource_only(share);
+error_alloc_share:
+  pthread_mutex_unlock(&spider_tbl_mutex);
+error_open_sys_table:
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+error_crd_spider_init:
+error_sts_spider_init:
+#endif
+  if (init_mem_root)
+  {
+    free_root(&mem_root, MYF(0));
+    init_mem_root = FALSE;
+  }
+error_but_no_delete:
+  DBUG_RETURN(NULL);
+}
+
+void spider_free_share_resource_only(
+  SPIDER_SHARE *share
+) {
+  DBUG_ENTER("spider_free_share_resource_only");
+  spider_free_share_alloc(share);
+  pthread_mutex_destroy(&share->crd_mutex);
+  pthread_mutex_destroy(&share->sts_mutex);
+  pthread_mutex_destroy(&share->mutex);
+  spider_free(spider_current_trx, share, MYF(0));
+  DBUG_VOID_RETURN;
+}
+
+int spider_free_share(
+  SPIDER_SHARE *share
+) {
+  DBUG_ENTER("spider_free_share");
+  pthread_mutex_lock(&spider_tbl_mutex);
+  bool do_delete_thd = false;
+  THD *thd = current_thd;
+  if (!--share->use_count)
+  {
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+    spider_free_sts_thread(share);
+    spider_free_crd_thread(share);
+    spider_free_mon_threads(share);
+    if (share->sts_spider_init)
+    {
+      spider_table_remove_share_from_sts_thread(share);
+      spider_free_spider_object_for_share(&share->sts_spider);
+    }
+    if (share->crd_spider_init)
+    {
+      spider_table_remove_share_from_crd_thread(share);
+      spider_free_spider_object_for_share(&share->crd_spider);
+    }
+#endif
+    if (
+      share->sts_init &&
+      spider_param_store_last_sts(share->store_last_sts)
+    ) {
+      if (!thd)
+      {
+        /* Create a thread for Spider system table update */
+        thd = spider_create_thd();
+        if (!thd)
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        do_delete_thd = TRUE;
+      }
+      spider_sys_insert_or_update_table_sts(
+        thd,
+        share->lgtm_tblhnd_share->table_name,
+        share->lgtm_tblhnd_share->table_name_length,
+        &share->stat,
+        FALSE
+      );
+    }
+    if (
+      share->crd_init &&
+      spider_param_store_last_crd(share->store_last_crd)
+    ) {
+      if (!thd)
+      {
+        /* Create a thread for Spider system table update */
+        thd = spider_create_thd();
+        if (!thd)
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        do_delete_thd = TRUE;
+      }
+      spider_sys_insert_or_update_table_crd(
+        thd,
+        share->lgtm_tblhnd_share->table_name,
+        share->lgtm_tblhnd_share->table_name_length,
+        share->cardinality,
+        share->table_share->fields,
+        FALSE
+      );
+    }
+    spider_free_share_alloc(share);
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+    my_hash_delete_with_hash_value(&spider_open_tables,
+      share->table_name_hash_value, (uchar*) share);
+#else
+    my_hash_delete(&spider_open_tables, (uchar*) share);
+#endif
+    pthread_mutex_destroy(&share->crd_mutex);
+    pthread_mutex_destroy(&share->sts_mutex);
+    pthread_mutex_destroy(&share->mutex);
+    free_root(&share->mem_root, MYF(0));
+    spider_free(spider_current_trx, share, MYF(0));
+  }
+  if (do_delete_thd)
+    spider_destroy_thd(thd);
+  pthread_mutex_unlock(&spider_tbl_mutex);
+  DBUG_RETURN(0);
+}
+
+void spider_update_link_status_for_share(
+  const char *table_name,
+  uint table_name_length,
+  int link_idx,
+  long link_status
+) {
+  SPIDER_SHARE *share;
+  DBUG_ENTER("spider_update_link_status_for_share");
+
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  my_hash_value_type hash_value = my_calc_hash(&spider_open_tables,
+    (uchar*) table_name, table_name_length);
+#endif
+  pthread_mutex_lock(&spider_tbl_mutex);
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  if ((share = (SPIDER_SHARE*) my_hash_search_using_hash_value(
+    &spider_open_tables, hash_value, (uchar*) table_name,
+    table_name_length)))
+#else
+  if ((share = (SPIDER_SHARE*) my_hash_search(&spider_open_tables,
+    (uchar*) table_name, table_name_length)))
+#endif
+  {
+    DBUG_PRINT("info", ("spider share->link_status_init=%s",
+      share->link_status_init ? "TRUE" : "FALSE"));
+    if (share->link_status_init)
+    {
+      DBUG_PRINT("info", ("spider share->link_statuses[%d]=%ld",
+        link_idx, link_status));
+      share->link_statuses[link_idx] = link_status;
+    }
+  }
+  pthread_mutex_unlock(&spider_tbl_mutex);
+  DBUG_VOID_RETURN;
+}
+
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+SPIDER_LGTM_TBLHND_SHARE *spider_get_lgtm_tblhnd_share(
+  const char *table_name,
+  uint table_name_length,
+  my_hash_value_type hash_value,
+  bool locked,
+  bool need_to_create,
+  int *error_num
+)
+#else
+SPIDER_LGTM_TBLHND_SHARE *spider_get_lgtm_tblhnd_share(
+  const char *table_name,
+  uint table_name_length,
+  bool locked,
+  bool need_to_create,
+  int *error_num
+)
+#endif
+{
+  SPIDER_LGTM_TBLHND_SHARE *lgtm_tblhnd_share;
+  char *tmp_name;
+  DBUG_ENTER("spider_get_lgtm_tblhnd_share");
+
+  if (!locked)
+    pthread_mutex_lock(&spider_lgtm_tblhnd_share_mutex);
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  if (!(lgtm_tblhnd_share = (SPIDER_LGTM_TBLHND_SHARE*)
+    my_hash_search_using_hash_value(
+    &spider_lgtm_tblhnd_share_hash, hash_value,
+    (uchar*) table_name, table_name_length)))
+#else
+  if (!(lgtm_tblhnd_share = (SPIDER_LGTM_TBLHND_SHARE*) my_hash_search(
+    &spider_lgtm_tblhnd_share_hash,
+    (uchar*) table_name, table_name_length)))
+#endif
+  {
+    DBUG_PRINT("info",("spider create new lgtm tblhnd share"));
+    if (!(lgtm_tblhnd_share = (SPIDER_LGTM_TBLHND_SHARE *)
+      spider_bulk_malloc(spider_current_trx, 244, MYF(MY_WME | MY_ZEROFILL),
+        &lgtm_tblhnd_share, (uint) (sizeof(*lgtm_tblhnd_share)),
+        &tmp_name, (uint) (table_name_length + 1),
+        NullS))
+    ) {
+      *error_num = HA_ERR_OUT_OF_MEM;
+      goto error_alloc_share;
+    }
+
+    lgtm_tblhnd_share->table_name_length = table_name_length;
+    lgtm_tblhnd_share->table_name = tmp_name;
+    memcpy(lgtm_tblhnd_share->table_name, table_name,
+      lgtm_tblhnd_share->table_name_length);
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+    lgtm_tblhnd_share->table_path_hash_value = hash_value;
+#endif
+
+#if MYSQL_VERSION_ID < 50500
+    if (pthread_mutex_init(&lgtm_tblhnd_share->auto_increment_mutex,
+      MY_MUTEX_INIT_FAST))
+#else
+    if (mysql_mutex_init(spd_key_mutex_share_auto_increment,
+      &lgtm_tblhnd_share->auto_increment_mutex, MY_MUTEX_INIT_FAST))
+#endif
+    {
+      *error_num = HA_ERR_OUT_OF_MEM;
+      goto error_init_auto_increment_mutex;
+    }
+
+    uint old_elements = spider_lgtm_tblhnd_share_hash.array.max_element;
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+    if (my_hash_insert_with_hash_value(&spider_lgtm_tblhnd_share_hash,
+      hash_value, (uchar*) lgtm_tblhnd_share))
+#else
+    if (my_hash_insert(&spider_lgtm_tblhnd_share_hash,
+      (uchar*) lgtm_tblhnd_share))
+#endif
+    {
+      *error_num = HA_ERR_OUT_OF_MEM;
+      goto error_hash_insert;
+    }
+    if (spider_lgtm_tblhnd_share_hash.array.max_element > old_elements)
+    {
+      spider_alloc_calc_mem(spider_current_trx,
+        spider_lgtm_tblhnd_share_hash,
+        (spider_lgtm_tblhnd_share_hash.array.max_element - old_elements) *
+        spider_lgtm_tblhnd_share_hash.array.size_of_element);
+    }
+  }
+  if (!locked)
+    pthread_mutex_unlock(&spider_lgtm_tblhnd_share_mutex);
+
+  DBUG_PRINT("info",("spider lgtm_tblhnd_share=%p", lgtm_tblhnd_share));
+  DBUG_RETURN(lgtm_tblhnd_share);
+
+error_hash_insert:
+  pthread_mutex_destroy(&lgtm_tblhnd_share->auto_increment_mutex);
+error_init_auto_increment_mutex:
+  spider_free(spider_current_trx, lgtm_tblhnd_share, MYF(0));
+error_alloc_share:
+  if (!locked)
+    pthread_mutex_unlock(&spider_lgtm_tblhnd_share_mutex);
+  DBUG_RETURN(NULL);
+}
+
+void spider_free_lgtm_tblhnd_share_alloc(
+  SPIDER_LGTM_TBLHND_SHARE *lgtm_tblhnd_share,
+  bool locked
+) {
+  DBUG_ENTER("spider_free_lgtm_tblhnd_share");
+  if (!locked)
+    pthread_mutex_lock(&spider_lgtm_tblhnd_share_mutex);
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+  my_hash_delete_with_hash_value(&spider_lgtm_tblhnd_share_hash,
+    lgtm_tblhnd_share->table_path_hash_value, (uchar*) lgtm_tblhnd_share);
+#else
+  my_hash_delete(&spider_lgtm_tblhnd_share_hash, (uchar*) lgtm_tblhnd_share);
+#endif
+  pthread_mutex_destroy(&lgtm_tblhnd_share->auto_increment_mutex);
+  spider_free(spider_current_trx, lgtm_tblhnd_share, MYF(0));
+  if (!locked)
+    pthread_mutex_unlock(&spider_lgtm_tblhnd_share_mutex);
+  DBUG_VOID_RETURN;
+}
+
+SPIDER_WIDE_SHARE *spider_get_wide_share(
+  SPIDER_SHARE *share,
+  TABLE_SHARE *table_share,
+  int *error_num
+) {
+  SPIDER_WIDE_SHARE *wide_share;
+  char *tmp_name;
+  longlong *tmp_cardinality;
+  DBUG_ENTER("spider_get_wide_share");
+
+  pthread_mutex_lock(&spider_wide_share_mutex);
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  if (!(wide_share = (SPIDER_WIDE_SHARE*)
+    my_hash_search_using_hash_value(
+    &spider_open_wide_share, share->table_path_hash_value,
+    (uchar*) table_share->path.str, table_share->path.length)))
+#else
+  if (!(wide_share = (SPIDER_WIDE_SHARE*) my_hash_search(
+    &spider_open_wide_share,
+    (uchar*) table_share->path.str, table_share->path.length)))
+#endif
+  {
+    DBUG_PRINT("info",("spider create new wide share"));
+    if (!(wide_share = (SPIDER_WIDE_SHARE *)
+      spider_bulk_malloc(spider_current_trx, 51, MYF(MY_WME | MY_ZEROFILL),
+        &wide_share, sizeof(SPIDER_WIDE_SHARE),
+        &tmp_name, (uint) (table_share->path.length + 1),
+        &tmp_cardinality,
+          (uint) (sizeof(*tmp_cardinality) * table_share->fields),
+        NullS))
+    ) {
+      *error_num = HA_ERR_OUT_OF_MEM;
+      goto error_alloc_share;
+    }
+
+    wide_share->use_count = 0;
+    wide_share->table_name_length = table_share->path.length;
+    wide_share->table_name = tmp_name;
+    memcpy(wide_share->table_name, table_share->path.str,
+      wide_share->table_name_length);
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+    wide_share->table_path_hash_value = share->table_path_hash_value;
+#endif
+    wide_share->cardinality = tmp_cardinality;
+
+    wide_share->crd_get_time = wide_share->sts_get_time =
+      share->crd_get_time;
+
+#if MYSQL_VERSION_ID < 50500
+    if (pthread_mutex_init(&wide_share->sts_mutex, MY_MUTEX_INIT_FAST))
+#else
+    if (mysql_mutex_init(spd_key_mutex_wide_share_sts,
+      &wide_share->sts_mutex, MY_MUTEX_INIT_FAST))
+#endif
+    {
+      *error_num = HA_ERR_OUT_OF_MEM;
+      goto error_init_sts_mutex;
+    }
+
+#if MYSQL_VERSION_ID < 50500
+    if (pthread_mutex_init(&wide_share->crd_mutex, MY_MUTEX_INIT_FAST))
+#else
+    if (mysql_mutex_init(spd_key_mutex_wide_share_crd,
+      &wide_share->crd_mutex, MY_MUTEX_INIT_FAST))
+#endif
+    {
+      *error_num = HA_ERR_OUT_OF_MEM;
+      goto error_init_crd_mutex;
+    }
+
+#if MYSQL_VERSION_ID < 50500
+    if (pthread_mutex_init(&wide_share->pt_handler_mutex,
+      MY_MUTEX_INIT_FAST))
+#else
+    if (mysql_mutex_init(spd_key_mutex_pt_handler,
+      &wide_share->pt_handler_mutex, MY_MUTEX_INIT_FAST))
+#endif
+    {
+      *error_num = HA_ERR_OUT_OF_MEM;
+      goto error_init_pt_handler_mutex;
+    }
+
+    if(
+      my_hash_init(PSI_INSTRUMENT_ME, &wide_share->pt_handler_hash, spd_charset_utf8mb3_bin,
+        32, 0, 0, (my_hash_get_key) spider_pt_handler_share_get_key, 0, 0)
+    ) {
+      *error_num = HA_ERR_OUT_OF_MEM;
+      goto error_init_pt_handler_hash;
+    }
+
+    thr_lock_init(&wide_share->lock);
+
+    spider_alloc_calc_mem_init(wide_share->pt_handler_hash, 142);
+    spider_alloc_calc_mem(spider_current_trx,
+      wide_share->pt_handler_hash,
+      wide_share->pt_handler_hash.array.max_element *
+      wide_share->pt_handler_hash.array.size_of_element);
+
+    uint old_elements = spider_open_wide_share.array.max_element;
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+    if (my_hash_insert_with_hash_value(&spider_open_wide_share,
+      share->table_path_hash_value,
+      (uchar*) wide_share))
+#else
+    if (my_hash_insert(&spider_open_wide_share, (uchar*) wide_share))
+#endif
+    {
+      *error_num = HA_ERR_OUT_OF_MEM;
+      goto error_hash_insert;
+    }
+    if (spider_open_wide_share.array.max_element > old_elements)
+    {
+      spider_alloc_calc_mem(spider_current_trx,
+        spider_open_wide_share,
+        (spider_open_wide_share.array.max_element - old_elements) *
+        spider_open_wide_share.array.size_of_element);
+    }
+  }
+  wide_share->use_count++;
+  pthread_mutex_unlock(&spider_wide_share_mutex);
+
+  DBUG_PRINT("info",("spider wide_share=%p", wide_share));
+  DBUG_RETURN(wide_share);
+
+error_hash_insert:
+  spider_free_mem_calc(spider_current_trx,
+    wide_share->pt_handler_hash_id,
+    wide_share->pt_handler_hash.array.max_element *
+    wide_share->pt_handler_hash.array.size_of_element);
+  my_hash_free(&wide_share->pt_handler_hash);
+error_init_pt_handler_hash:
+  pthread_mutex_destroy(&wide_share->pt_handler_mutex);
+error_init_pt_handler_mutex:
+  pthread_mutex_destroy(&wide_share->crd_mutex);
+error_init_crd_mutex:
+  pthread_mutex_destroy(&wide_share->sts_mutex);
+error_init_sts_mutex:
+  spider_free(spider_current_trx, wide_share, MYF(0));
+error_alloc_share:
+  pthread_mutex_unlock(&spider_wide_share_mutex);
+  DBUG_RETURN(NULL);
+}
+
+int spider_free_wide_share(
+  SPIDER_WIDE_SHARE *wide_share
+) {
+  DBUG_ENTER("spider_free_wide_share");
+  pthread_mutex_lock(&spider_wide_share_mutex);
+  if (!--wide_share->use_count)
+  {
+    thr_lock_delete(&wide_share->lock);
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+    my_hash_delete_with_hash_value(&spider_open_wide_share,
+      wide_share->table_path_hash_value, (uchar*) wide_share);
+#else
+    my_hash_delete(&spider_open_wide_share, (uchar*) wide_share);
+#endif
+    spider_free_mem_calc(spider_current_trx,
+      wide_share->pt_handler_hash_id,
+      wide_share->pt_handler_hash.array.max_element *
+      wide_share->pt_handler_hash.array.size_of_element);
+    my_hash_free(&wide_share->pt_handler_hash);
+    pthread_mutex_destroy(&wide_share->pt_handler_mutex);
+    pthread_mutex_destroy(&wide_share->crd_mutex);
+    pthread_mutex_destroy(&wide_share->sts_mutex);
+    spider_free(spider_current_trx, wide_share, MYF(0));
+  }
+  pthread_mutex_unlock(&spider_wide_share_mutex);
+  DBUG_RETURN(0);
+}
+
+void spider_copy_sts_to_wide_share(
+  SPIDER_WIDE_SHARE *wide_share,
+  SPIDER_SHARE *share
+) {
+  DBUG_ENTER("spider_copy_sts_to_pt_share");
+  wide_share->stat = share->stat;
+  DBUG_VOID_RETURN;
+}
+
+void spider_copy_sts_to_share(
+  SPIDER_SHARE *share,
+  SPIDER_WIDE_SHARE *wide_share
+) {
+  DBUG_ENTER("spider_copy_sts_to_share");
+  share->stat = wide_share->stat;
+  DBUG_VOID_RETURN;
+}
+
+void spider_copy_crd_to_wide_share(
+  SPIDER_WIDE_SHARE *wide_share,
+  SPIDER_SHARE *share,
+  int fields
+) {
+  DBUG_ENTER("spider_copy_crd_to_wide_share");
+  memcpy(wide_share->cardinality, share->cardinality,
+    sizeof(longlong) * fields);
+  DBUG_VOID_RETURN;
+}
+
+void spider_copy_crd_to_share(
+  SPIDER_SHARE *share,
+  SPIDER_WIDE_SHARE *wide_share,
+  int fields
+) {
+  DBUG_ENTER("spider_copy_crd_to_share");
+  memcpy(share->cardinality, wide_share->cardinality,
+    sizeof(longlong) * fields);
+  DBUG_VOID_RETURN;
+}
+
+int spider_open_all_tables(
+  SPIDER_TRX *trx,
+  bool lock
+) {
+  THD *thd = trx->thd;
+  TABLE *table_tables;
+  int error_num, *need_mon, mon_val;
+  SPIDER_SHARE tmp_share;
+  char *db_name, *table_name;
+  uint db_name_length, table_name_length;
+  char *tmp_connect_info[SPIDER_TMP_SHARE_CHAR_PTR_COUNT];
+  uint tmp_connect_info_length[SPIDER_TMP_SHARE_UINT_COUNT];
+  long tmp_long[SPIDER_TMP_SHARE_LONG_COUNT];
+  longlong tmp_longlong[SPIDER_TMP_SHARE_LONGLONG_COUNT];
+  SPIDER_CONN *conn, **conns;
+  ha_spider *spider;
+  SPIDER_SHARE *share;
+  char **connect_info;
+  uint *connect_info_length;
+  long *long_info;
+  longlong *longlong_info;
+  MEM_ROOT mem_root;
+  SPIDER_Open_tables_backup open_tables_backup;
+  DBUG_ENTER("spider_open_all_tables");
+  if (
+    !(table_tables = spider_open_sys_table(
+      thd, SPIDER_SYS_TABLES_TABLE_NAME_STR,
+      SPIDER_SYS_TABLES_TABLE_NAME_LEN, TRUE, &open_tables_backup, TRUE,
+      &error_num))
+  )
+    DBUG_RETURN(error_num);
+  if (
+    (error_num = spider_sys_index_first(table_tables, 1))
+  ) {
+    if (error_num != HA_ERR_KEY_NOT_FOUND && error_num != HA_ERR_END_OF_FILE)
+    {
+      table_tables->file->print_error(error_num, MYF(0));
+      spider_close_sys_table(thd, table_tables,
+        &open_tables_backup, TRUE);
+      DBUG_RETURN(error_num);
+    } else {
+      spider_close_sys_table(thd, table_tables,
+        &open_tables_backup, TRUE);
+      DBUG_RETURN(0);
+    }
+  }
+
+  SPD_INIT_ALLOC_ROOT(&mem_root, 4096, 0, MYF(MY_WME));
+  memset((void*)&tmp_share, 0, sizeof(SPIDER_SHARE));
+  memset(&tmp_connect_info, 0,
+    sizeof(char *) * SPIDER_TMP_SHARE_CHAR_PTR_COUNT);
+  memset(tmp_connect_info_length, 0,
+    sizeof(uint) * SPIDER_TMP_SHARE_UINT_COUNT);
+  memset(tmp_long, 0, sizeof(long) * SPIDER_TMP_SHARE_LONG_COUNT);
+  memset(tmp_longlong, 0, sizeof(longlong) * SPIDER_TMP_SHARE_LONGLONG_COUNT);
+  spider_set_tmp_share_pointer(&tmp_share, (char **) &tmp_connect_info,
+    tmp_connect_info_length, tmp_long, tmp_longlong);
+  tmp_share.link_statuses[0] = -1;
+
+  do {
+    if (
+      (error_num = spider_get_sys_tables(
+        table_tables, &db_name, &table_name, &mem_root)) ||
+      (error_num = spider_get_sys_tables_connect_info(
+        table_tables, &tmp_share, 0, &mem_root)) ||
+      (error_num = spider_set_connect_info_default(
+        &tmp_share,
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+        NULL,
+        NULL,
+#endif
+        NULL
+      ))
+    ) {
+      spider_sys_index_end(table_tables);
+      spider_close_sys_table(thd, table_tables,
+        &open_tables_backup, TRUE);
+      spider_free_tmp_share_alloc(&tmp_share);
+      free_root(&mem_root, MYF(0));
+      DBUG_RETURN(error_num);
+    }
+    db_name_length = strlen(db_name);
+    table_name_length = strlen(table_name);
+
+    if (
+      (error_num = spider_set_connect_info_default_db_table(
+        &tmp_share,
+        db_name,
+        db_name_length,
+        table_name,
+        table_name_length
+      )) ||
+      (error_num = spider_create_conn_keys(&tmp_share)) ||
+/*
+      (error_num = spider_db_create_table_names_str(&tmp_share)) ||
+*/
+      (error_num = spider_create_tmp_dbton_share(&tmp_share))
+    ) {
+      spider_sys_index_end(table_tables);
+      spider_close_sys_table(thd, table_tables,
+        &open_tables_backup, TRUE);
+      spider_free_tmp_share_alloc(&tmp_share);
+      free_root(&mem_root, MYF(0));
+      DBUG_RETURN(error_num);
+    }
+
+    /* create conn */
+    if (
+      !(conn = spider_get_conn(
+        &tmp_share, 0, tmp_share.conn_keys[0], trx, NULL, FALSE, FALSE,
+        SPIDER_CONN_KIND_MYSQL, &error_num))
+    ) {
+      spider_sys_index_end(table_tables);
+      spider_close_sys_table(thd, table_tables,
+        &open_tables_backup, TRUE);
+      spider_free_tmp_dbton_share(&tmp_share);
+      spider_free_tmp_share_alloc(&tmp_share);
+      free_root(&mem_root, MYF(0));
+      DBUG_RETURN(error_num);
+    }
+    conn->error_mode &= spider_param_error_read_mode(thd, 0);
+    conn->error_mode &= spider_param_error_write_mode(thd, 0);
+    pthread_mutex_assert_not_owner(&conn->mta_conn_mutex);
+    pthread_mutex_lock(&conn->mta_conn_mutex);
+    SPIDER_SET_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    conn->need_mon = &mon_val;
+    DBUG_ASSERT(!conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(!conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = TRUE;
+    conn->mta_conn_mutex_unlock_later = TRUE;
+    if ((error_num = spider_db_before_query(conn, &mon_val)))
+    {
+      DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+      DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+      conn->mta_conn_mutex_lock_already = FALSE;
+      conn->mta_conn_mutex_unlock_later = FALSE;
+      SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+      pthread_mutex_unlock(&conn->mta_conn_mutex);
+      spider_sys_index_end(table_tables);
+      spider_close_sys_table(thd, table_tables,
+        &open_tables_backup, TRUE);
+      spider_free_tmp_dbton_share(&tmp_share);
+      spider_free_tmp_share_alloc(&tmp_share);
+      free_root(&mem_root, MYF(0));
+      DBUG_RETURN(error_num);
+    }
+    DBUG_ASSERT(conn->mta_conn_mutex_lock_already);
+    DBUG_ASSERT(conn->mta_conn_mutex_unlock_later);
+    conn->mta_conn_mutex_lock_already = FALSE;
+    conn->mta_conn_mutex_unlock_later = FALSE;
+    SPIDER_CLEAR_FILE_POS(&conn->mta_conn_mutex_file_pos);
+    pthread_mutex_unlock(&conn->mta_conn_mutex);
+
+    if (lock && spider_param_use_snapshot_with_flush_tables(thd) == 2)
+    {
+      if (!(spider = new ha_spider()))
+      {
+        spider_sys_index_end(table_tables);
+        spider_close_sys_table(thd, table_tables,
+          &open_tables_backup, TRUE);
+        spider_free_tmp_dbton_share(&tmp_share);
+        spider_free_tmp_share_alloc(&tmp_share);
+        free_root(&mem_root, MYF(0));
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+      spider->wide_handler->lock_type = TL_READ_NO_INSERT;
+
+      if (!(share = (SPIDER_SHARE *)
+        spider_bulk_malloc(spider_current_trx, 52, MYF(MY_WME | MY_ZEROFILL),
+          &share, (uint) (sizeof(*share)),
+          &connect_info,
+            (uint) (sizeof(char *) * SPIDER_TMP_SHARE_CHAR_PTR_COUNT),
+          &connect_info_length,
+            (uint) (sizeof(uint) * SPIDER_TMP_SHARE_UINT_COUNT),
+          &long_info, (uint) (sizeof(long) * SPIDER_TMP_SHARE_LONG_COUNT),
+          &longlong_info,
+            (uint) (sizeof(longlong) * SPIDER_TMP_SHARE_LONGLONG_COUNT),
+          &conns, (uint) (sizeof(SPIDER_CONN *)),
+          &need_mon, (uint) (sizeof(int)),
+          &spider->conn_link_idx, (uint) (sizeof(uint)),
+          &spider->conn_can_fo, (uint) (sizeof(uchar)),
+          NullS))
+      ) {
+        delete spider;
+        spider_sys_index_end(table_tables);
+        spider_close_sys_table(thd, table_tables,
+          &open_tables_backup, TRUE);
+        spider_free_tmp_dbton_share(&tmp_share);
+        spider_free_tmp_share_alloc(&tmp_share);
+        free_root(&mem_root, MYF(0));
+        DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+      }
+      memcpy((void*)share, &tmp_share, sizeof(*share));
+      spider_set_tmp_share_pointer(share, connect_info,
+        connect_info_length, long_info, longlong_info);
+      memcpy(connect_info, &tmp_connect_info, sizeof(char *) *
+        SPIDER_TMP_SHARE_CHAR_PTR_COUNT);
+      memcpy(connect_info_length, &tmp_connect_info_length, sizeof(uint) *
+        SPIDER_TMP_SHARE_UINT_COUNT);
+      memcpy(long_info, &tmp_long, sizeof(long) * SPIDER_TMP_SHARE_LONG_COUNT);
+      memcpy(longlong_info, &tmp_longlong, sizeof(longlong) *
+        SPIDER_TMP_SHARE_LONGLONG_COUNT);
+      spider->share = share;
+      spider->wide_handler->trx = trx;
+      spider->conns = conns;
+      spider->need_mons = need_mon;
+      spider->conn_link_idx[0] = 0;
+      spider->conn_can_fo[0] = 0;
+      if ((error_num = spider_create_tmp_dbton_handler(spider)))
+      {
+        spider_free(trx, share, MYF(0));
+        delete spider;
+        spider_sys_index_end(table_tables);
+        spider_close_sys_table(thd, table_tables,
+          &open_tables_backup, TRUE);
+        spider_free_tmp_dbton_share(&tmp_share);
+        spider_free_tmp_share_alloc(&tmp_share);
+        free_root(&mem_root, MYF(0));
+        DBUG_RETURN(error_num);
+      }
+
+      /* create another conn */
+      if (
+        (!(conn = spider_get_conn(
+        &tmp_share, 0, tmp_share.conn_keys[0], trx, spider, TRUE, FALSE,
+        SPIDER_CONN_KIND_MYSQL, &error_num)))
+      ) {
+        spider_free_tmp_dbton_handler(spider);
+        spider_free(trx, share, MYF(0));
+        delete spider;
+        spider_sys_index_end(table_tables);
+        spider_close_sys_table(thd, table_tables,
+          &open_tables_backup, TRUE);
+        spider_free_tmp_dbton_share(&tmp_share);
+        spider_free_tmp_share_alloc(&tmp_share);
+        free_root(&mem_root, MYF(0));
+        DBUG_RETURN(error_num);
+      }
+      conn->error_mode &= spider_param_error_read_mode(thd, 0);
+      conn->error_mode &= spider_param_error_write_mode(thd, 0);
+
+      spider->next = NULL;
+      if (conn->another_ha_last)
+      {
+        ((ha_spider*) conn->another_ha_last)->next = spider;
+      } else {
+        conn->another_ha_first = (void*) spider;
+      }
+      conn->another_ha_last = (void*) spider;
+
+      int appended = 0;
+      if ((error_num = spider->dbton_handler[conn->dbton_id]->
+        append_lock_tables_list(conn, 0, &appended)))
+      {
+        spider_free_tmp_dbton_handler(spider);
+        spider_free(trx, share, MYF(0));
+        delete spider;
+        spider_sys_index_end(table_tables);
+        spider_close_sys_table(thd, table_tables,
+          &open_tables_backup, TRUE);
+        spider_free_tmp_dbton_share(&tmp_share);
+        spider_free_tmp_share_alloc(&tmp_share);
+        free_root(&mem_root, MYF(0));
+        DBUG_RETURN(error_num);
+      }
+    } else {
+      spider_free_tmp_dbton_share(&tmp_share);
+      spider_free_tmp_share_alloc(&tmp_share);
+    }
+    error_num = spider_sys_index_next(table_tables);
+  } while (error_num == 0);
+  free_root(&mem_root, MYF(0));
+
+  spider_sys_index_end(table_tables);
+  spider_close_sys_table(thd, table_tables,
+    &open_tables_backup, TRUE);
+  DBUG_RETURN(0);
+}
+
+bool spider_flush_logs(
+  handlerton *hton
+) {
+  int error_num;
+  THD* thd = current_thd;
+  SPIDER_TRX *trx;
+  DBUG_ENTER("spider_flush_logs");
+
+  if (!(trx = spider_get_trx(thd, TRUE, &error_num)))
+  {
+    my_errno = error_num;
+    DBUG_RETURN(TRUE);
+  }
+  if (
+    spider_param_use_flash_logs(trx->thd) &&
+    (
+      !trx->trx_consistent_snapshot ||
+      !spider_param_use_all_conns_snapshot(trx->thd) ||
+      !spider_param_use_snapshot_with_flush_tables(trx->thd)
+    )
+  ) {
+    if (
+      (error_num = spider_open_all_tables(trx, FALSE)) ||
+      (error_num = spider_trx_all_flush_logs(trx))
+    ) {
+      my_errno = error_num;
+      DBUG_RETURN(TRUE);
+    }
+  }
+
+  DBUG_RETURN(FALSE);
+}
+
+handler* spider_create_handler(
+  handlerton *hton,
+  TABLE_SHARE *table, 
+  MEM_ROOT *mem_root
+) {
+  DBUG_ENTER("spider_create_handler");
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  SPIDER_THREAD *thread = &spider_table_sts_threads[0];
+  if (unlikely(thread->init_command))
+  {
+    THD *thd = current_thd;
+    pthread_cond_t *cond = thd->mysys_var->current_cond;
+    pthread_mutex_t *mutex = thd->mysys_var->current_mutex;
+    /* wait for finishing init_command */
+    pthread_mutex_lock(&thread->mutex);
+    if (unlikely(thread->init_command))
+    {
+      thd->mysys_var->current_cond = &thread->sync_cond;
+      thd->mysys_var->current_mutex = &thread->mutex;
+      pthread_cond_wait(&thread->sync_cond, &thread->mutex);
+    }
+    pthread_mutex_unlock(&thread->mutex);
+    thd->mysys_var->current_cond = cond;
+    thd->mysys_var->current_mutex = mutex;
+    if (thd->killed)
+    {
+      DBUG_RETURN(NULL);
+    }
+  }
+#endif
+  DBUG_RETURN(new (mem_root) ha_spider(hton, table));
+}
+
+int spider_close_connection(
+  handlerton* hton,
+  THD* thd
+) {
+  int roop_count = 0;
+  SPIDER_CONN *conn;
+  SPIDER_TRX *trx;
+  DBUG_ENTER("spider_close_connection");
+  if (!(trx = (SPIDER_TRX*) thd_get_ha_data(thd, spider_hton_ptr)))
+    DBUG_RETURN(0); /* transaction is not started */
+
+  trx->tmp_spider->conns = &conn;
+  while ((conn = (SPIDER_CONN*) my_hash_element(&trx->trx_conn_hash,
+    roop_count)))
+  {
+    SPIDER_BACKUP_DASTATUS;
+    DBUG_PRINT("info",("spider conn->table_lock=%d", conn->table_lock));
+    if (conn->table_lock > 0)
+    {
+      if (!conn->trx_start)
+        conn->disable_reconnect = FALSE;
+      if (conn->table_lock != 2)
+      {
+        spider_db_unlock_tables(trx->tmp_spider, 0);
+      }
+      conn->table_lock = 0;
+    }
+    roop_count++;
+    SPIDER_CONN_RESTORE_DASTATUS;
+  }
+
+  spider_rollback(spider_hton_ptr, thd, TRUE);
+  spider_free_trx(trx, TRUE, false);
+
+  DBUG_RETURN(0);
+}
+
+void spider_drop_database(
+  handlerton *hton,
+  char* path
+) {
+  DBUG_ENTER("spider_drop_database");
+  DBUG_VOID_RETURN;
+}
+
+bool spider_show_status(
+  handlerton *hton,
+  THD *thd, 
+  stat_print_fn *stat_print,
+  enum ha_stat_type stat_type
+) {
+  DBUG_ENTER("spider_show_status");
+  switch (stat_type) {
+    case HA_ENGINE_STATUS:
+    default:
+      DBUG_RETURN(FALSE);
+  }
+}
+
+int spider_db_done(
+  void *p
+) {
+  int roop_count;
+  bool do_delete_thd;
+  THD *thd = current_thd, *tmp_thd;
+  SPIDER_CONN *conn;
+  SPIDER_INIT_ERROR_TABLE *spider_init_error_table;
+  SPIDER_TABLE_MON_LIST *table_mon_list;
+  SPIDER_LGTM_TBLHND_SHARE *lgtm_tblhnd_share;
+  DBUG_ENTER("spider_db_done");
+
+  /* Begin Spider plugin deinit */
+  if (thd)
+    do_delete_thd = FALSE;
+  else
+  {
+    /* Create a thread for Spider plugin deinit */
+    thd = spider_create_thd();
+    if (!thd)
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    do_delete_thd = TRUE;
+  }
+
+  for (roop_count = SPIDER_DBTON_SIZE - 1; roop_count >= 0; roop_count--)
+  {
+    if (spider_dbton[roop_count].deinit)
+    {
+      spider_dbton[roop_count].deinit();
+    }
+  }
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  for (roop_count = spider_param_table_crd_thread_count() - 1;
+    roop_count >= 0; roop_count--)
+  {
+    spider_free_crd_threads(&spider_table_crd_threads[roop_count]);
+  }
+  for (roop_count = spider_param_table_sts_thread_count() - 1;
+    roop_count >= 0; roop_count--)
+  {
+    spider_free_sts_threads(&spider_table_sts_threads[roop_count]);
+  }
+  spider_free(NULL, spider_table_sts_threads, MYF(0));
+#endif
+
+  for (roop_count = spider_param_udf_table_mon_mutex_count() - 1;
+    roop_count >= 0; roop_count--)
+  {
+    while ((table_mon_list = (SPIDER_TABLE_MON_LIST *) my_hash_element(
+      &spider_udf_table_mon_list_hash[roop_count], 0)))
+    {
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+      my_hash_delete_with_hash_value(
+        &spider_udf_table_mon_list_hash[roop_count],
+        table_mon_list->key_hash_value, (uchar*) table_mon_list);
+#else
+      my_hash_delete(&spider_udf_table_mon_list_hash[roop_count],
+        (uchar*) table_mon_list);
+#endif
+      spider_ping_table_free_mon_list(table_mon_list);
+    }
+    spider_free_mem_calc(spider_current_trx,
+      spider_udf_table_mon_list_hash_id,
+      spider_udf_table_mon_list_hash[roop_count].array.max_element *
+      spider_udf_table_mon_list_hash[roop_count].array.size_of_element);
+    my_hash_free(&spider_udf_table_mon_list_hash[roop_count]);
+  }
+  for (roop_count = spider_param_udf_table_mon_mutex_count() - 1;
+    roop_count >= 0; roop_count--)
+    pthread_cond_destroy(&spider_udf_table_mon_conds[roop_count]);
+  for (roop_count = spider_param_udf_table_mon_mutex_count() - 1;
+    roop_count >= 0; roop_count--)
+    pthread_mutex_destroy(&spider_udf_table_mon_mutexes[roop_count]);
+  spider_free(NULL, spider_udf_table_mon_mutexes, MYF(0));
+
+  pthread_mutex_lock(&spider_allocated_thds_mutex);
+  while ((tmp_thd = (THD *) my_hash_element(&spider_allocated_thds, 0)))
+  {
+    SPIDER_TRX *trx = (SPIDER_TRX *)
+                      thd_get_ha_data(tmp_thd, spider_hton_ptr);
+    if (trx)
+    {
+      DBUG_ASSERT(tmp_thd == trx->thd);
+      spider_free_trx(trx, FALSE);
+      thd_set_ha_data(tmp_thd, spider_hton_ptr, NULL);
+    }
+    else
+      my_hash_delete(&spider_allocated_thds, (uchar *) tmp_thd);
+  }
+  pthread_mutex_unlock(&spider_allocated_thds_mutex);
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  pthread_mutex_lock(&spider_hs_w_conn_mutex);
+  while ((conn = (SPIDER_CONN*) my_hash_element(&spider_hs_w_conn_hash, 0)))
+  {
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+    my_hash_delete_with_hash_value(&spider_hs_w_conn_hash,
+      conn->conn_key_hash_value, (uchar*) conn);
+#else
+    my_hash_delete(&spider_hs_w_conn_hash, (uchar*) conn);
+#endif
+    spider_free_conn(conn);
+  }
+  pthread_mutex_unlock(&spider_hs_w_conn_mutex);
+  pthread_mutex_lock(&spider_hs_r_conn_mutex);
+  while ((conn = (SPIDER_CONN*) my_hash_element(&spider_hs_r_conn_hash, 0)))
+  {
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+    my_hash_delete_with_hash_value(&spider_hs_r_conn_hash,
+      conn->conn_key_hash_value, (uchar*) conn);
+#else
+    my_hash_delete(&spider_hs_r_conn_hash, (uchar*) conn);
+#endif
+    spider_free_conn(conn);
+  }
+  pthread_mutex_unlock(&spider_hs_r_conn_mutex);
+#endif
+  pthread_mutex_lock(&spider_conn_mutex);
+  while ((conn = (SPIDER_CONN*) my_hash_element(&spider_open_connections, 0)))
+  {
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+    my_hash_delete_with_hash_value(&spider_open_connections,
+      conn->conn_key_hash_value, (uchar*) conn);
+#else
+    my_hash_delete(&spider_open_connections, (uchar*) conn);
+#endif
+    spider_free_conn(conn);
+  }
+  pthread_mutex_unlock(&spider_conn_mutex);
+  pthread_mutex_lock(&spider_lgtm_tblhnd_share_mutex);
+  while ((lgtm_tblhnd_share = (SPIDER_LGTM_TBLHND_SHARE*) my_hash_element(
+    &spider_lgtm_tblhnd_share_hash, 0)))
+  {
+    spider_free_lgtm_tblhnd_share_alloc(lgtm_tblhnd_share, TRUE);
+  }
+  pthread_mutex_unlock(&spider_lgtm_tblhnd_share_mutex);
+  spider_free_mem_calc(spider_current_trx,
+    spider_mon_table_cache_id,
+    spider_mon_table_cache.max_element *
+    spider_mon_table_cache.size_of_element);
+  delete_dynamic(&spider_mon_table_cache);
+  spider_free_mem_calc(spider_current_trx,
+    spider_allocated_thds_id,
+    spider_allocated_thds.array.max_element *
+    spider_allocated_thds.array.size_of_element);
+  my_hash_free(&spider_allocated_thds);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  spider_free_mem_calc(spider_current_trx,
+    spider_hs_w_conn_hash_id,
+    spider_hs_w_conn_hash.array.max_element *
+    spider_hs_w_conn_hash.array.size_of_element);
+  my_hash_free(&spider_hs_w_conn_hash);
+  spider_free_mem_calc(spider_current_trx,
+    spider_hs_r_conn_hash_id,
+    spider_hs_r_conn_hash.array.max_element *
+    spider_hs_r_conn_hash.array.size_of_element);
+  my_hash_free(&spider_hs_r_conn_hash);
+#endif
+  spider_free_mem_calc(spider_current_trx,
+    spider_open_connections_id,
+    spider_open_connections.array.max_element *
+    spider_open_connections.array.size_of_element);
+  my_hash_free(&spider_open_connections);
+  my_hash_free(&spider_ipport_conns);
+  spider_free_mem_calc(spider_current_trx,
+    spider_lgtm_tblhnd_share_hash_id,
+    spider_lgtm_tblhnd_share_hash.array.max_element *
+    spider_lgtm_tblhnd_share_hash.array.size_of_element);
+  my_hash_free(&spider_lgtm_tblhnd_share_hash);
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  spider_free_mem_calc(spider_current_trx,
+    spider_open_wide_share_id,
+    spider_open_wide_share.array.max_element *
+    spider_open_wide_share.array.size_of_element);
+  my_hash_free(&spider_open_wide_share);
+#endif
+  pthread_mutex_lock(&spider_init_error_tbl_mutex);
+  while ((spider_init_error_table = (SPIDER_INIT_ERROR_TABLE*)
+    my_hash_element(&spider_init_error_tables, 0)))
+  {
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+    my_hash_delete_with_hash_value(&spider_init_error_tables,
+      spider_init_error_table->table_name_hash_value,
+      (uchar*) spider_init_error_table);
+#else
+    my_hash_delete(&spider_init_error_tables,
+      (uchar*) spider_init_error_table);
+#endif
+    spider_free(NULL, spider_init_error_table, MYF(0));
+  }
+  pthread_mutex_unlock(&spider_init_error_tbl_mutex);
+  spider_free_mem_calc(spider_current_trx,
+    spider_init_error_tables_id,
+    spider_init_error_tables.array.max_element *
+    spider_init_error_tables.array.size_of_element);
+  my_hash_free(&spider_init_error_tables);
+  spider_free_mem_calc(spider_current_trx,
+    spider_open_tables_id,
+    spider_open_tables.array.max_element *
+    spider_open_tables.array.size_of_element);
+  my_hash_free(&spider_open_tables);
+  pthread_mutex_destroy(&spider_mem_calc_mutex);
+  pthread_mutex_destroy(&spider_mon_table_cache_mutex);
+  pthread_mutex_destroy(&spider_allocated_thds_mutex);
+  pthread_mutex_destroy(&spider_open_conn_mutex);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  pthread_mutex_destroy(&spider_hs_w_conn_mutex);
+  pthread_mutex_destroy(&spider_hs_r_conn_mutex);
+#endif
+  pthread_mutex_destroy(&spider_conn_mutex);
+  pthread_mutex_destroy(&spider_lgtm_tblhnd_share_mutex);
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  pthread_mutex_destroy(&spider_wide_share_mutex);
+#endif
+  pthread_mutex_destroy(&spider_init_error_tbl_mutex);
+  pthread_mutex_destroy(&spider_conn_id_mutex);
+  pthread_mutex_destroy(&spider_ipport_conn_mutex);
+  pthread_mutex_destroy(&spider_thread_id_mutex);
+  pthread_mutex_destroy(&spider_tbl_mutex);
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  pthread_attr_destroy(&spider_pt_attr);
+#endif
+
+  for (roop_count = 0; roop_count < SPIDER_MEM_CALC_LIST_NUM; roop_count++)
+  {
+    if (spider_alloc_func_name[roop_count])
+      DBUG_PRINT("info",("spider %d %s %s %lu %llu %lld %llu %llu %s",
+        roop_count,
+        spider_alloc_func_name[roop_count],
+        spider_alloc_file_name[roop_count],
+        spider_alloc_line_no[roop_count],
+        spider_total_alloc_mem[roop_count],
+        spider_current_alloc_mem[roop_count],
+        spider_alloc_mem_count[roop_count],
+        spider_free_mem_count[roop_count],
+        spider_current_alloc_mem[roop_count] ? "NG" : "OK"
+      ));
+  }
+
+  /* End Spider plugin deinit */
+  if (do_delete_thd)
+    spider_destroy_thd(thd);
+
+/*
+DBUG_ASSERT(0);
+*/
+  DBUG_RETURN(0);
+}
+
+int spider_panic(
+  handlerton *hton,
+  ha_panic_function type
+) {
+  DBUG_ENTER("spider_panic");
+  DBUG_RETURN(0);
+}
+
+int spider_db_init(
+  void *p
+) {
+  int error_num = HA_ERR_OUT_OF_MEM, roop_count;
+  uint dbton_id = 0;
+  uchar addr[6];
+  handlerton *spider_hton = (handlerton *)p;
+  DBUG_ENTER("spider_db_init");
+  spider_hton_ptr = spider_hton;
+
+  spider_hton->flags = HTON_NO_FLAGS;
+#ifdef HTON_CAN_READ_CONNECT_STRING_IN_PARTITION
+  spider_hton->flags |= HTON_CAN_READ_CONNECT_STRING_IN_PARTITION;
+#endif
+  /* spider_hton->db_type = DB_TYPE_SPIDER; */
+  /*
+  spider_hton->savepoint_offset;
+  spider_hton->savepoint_set = spider_savepoint_set;
+  spider_hton->savepoint_rollback = spider_savepoint_rollback;
+  spider_hton->savepoint_release = spider_savepoint_release;
+  spider_hton->create_cursor_read_view = spider_create_cursor_read_view;
+  spider_hton->set_cursor_read_view = spider_set_cursor_read_view;
+  spider_hton->close_cursor_read_view = spider_close_cursor_read_view;
+  */
+  spider_hton->panic = spider_panic;
+  spider_hton->close_connection = spider_close_connection;
+  spider_hton->start_consistent_snapshot = spider_start_consistent_snapshot;
+  spider_hton->flush_logs = spider_flush_logs;
+  spider_hton->commit = spider_commit;
+  spider_hton->rollback = spider_rollback;
+#ifdef SPIDER_HAS_DISCOVER_TABLE_STRUCTURE
+  spider_hton->discover_table_structure = spider_discover_table_structure;
+#endif
+  if (spider_param_support_xa())
+  {
+    spider_hton->prepare = spider_xa_prepare;
+    spider_hton->recover = spider_xa_recover;
+    spider_hton->commit_by_xid = spider_xa_commit_by_xid;
+    spider_hton->rollback_by_xid = spider_xa_rollback_by_xid;
+  }
+  spider_hton->create = spider_create_handler;
+  spider_hton->drop_database = spider_drop_database;
+  spider_hton->show_status = spider_show_status;
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+  spider_hton->create_group_by = spider_create_group_by_handler;
+#endif
+
+  if (my_gethwaddr((uchar *) addr))
+  {
+    my_printf_error(ER_SPIDER_CANT_NUM, ER_SPIDER_CANT_STR1, MYF(0),
+      "get hardware address with error ", errno);
+  }
+  spider_unique_id.str = spider_unique_id_buf;
+  spider_unique_id.length = my_sprintf(spider_unique_id_buf,
+    (spider_unique_id_buf, "-%02x%02x%02x%02x%02x%02x-%lx-",
+      addr[0], addr[1], addr[2], addr[3], addr[4], addr[5], (ulong) getpid()));
+
+  memset(&spider_alloc_func_name, 0, sizeof(spider_alloc_func_name));
+  memset(&spider_alloc_file_name, 0, sizeof(spider_alloc_file_name));
+  memset(&spider_alloc_line_no, 0, sizeof(spider_alloc_line_no));
+  memset(&spider_total_alloc_mem, 0, sizeof(spider_total_alloc_mem));
+  memset(&spider_current_alloc_mem, 0, sizeof(spider_current_alloc_mem));
+  memset(&spider_alloc_mem_count, 0, sizeof(spider_alloc_mem_count));
+  memset(&spider_free_mem_count, 0, sizeof(spider_free_mem_count));
+
+#ifndef SPIDER_HAS_NEXT_THREAD_ID
+  spd_db_att_thread_id = &thread_id;
+#endif
+#ifdef SPIDER_XID_USES_xid_cache_iterate
+#else
+#ifdef XID_CACHE_IS_SPLITTED
+  spd_db_att_xid_cache_split_num = &opt_xid_cache_split_num;
+  spd_db_att_LOCK_xid_cache = LOCK_xid_cache;
+  spd_db_att_xid_cache = xid_cache;
+#else
+  spd_db_att_LOCK_xid_cache = &LOCK_xid_cache;
+  spd_db_att_xid_cache = &xid_cache;
+#endif
+#endif
+  spd_charset_utf8mb3_bin = &my_charset_utf8mb3_bin;
+  spd_defaults_extra_file = &my_defaults_extra_file;
+  spd_defaults_file = &my_defaults_file;
+  spd_mysqld_unix_port = (const char **) &mysqld_unix_port;
+  spd_mysqld_port = &mysqld_port;
+  spd_abort_loop = &abort_loop;
+  spd_tz_system = my_tz_SYSTEM;
+  spd_mysqld_server_started = &mysqld_server_started;
+  spd_LOCK_server_started = &LOCK_server_started;
+  spd_COND_server_started = &COND_server_started;
+
+#ifdef HAVE_PSI_INTERFACE
+  init_spider_psi_keys();
+#endif
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  if (pthread_attr_init(&spider_pt_attr))
+    goto error_pt_attr_init;
+/*
+  if (pthread_attr_setdetachstate(&spider_pt_attr, PTHREAD_CREATE_DETACHED))
+    goto error_pt_attr_setstate;
+*/
+#endif
+
+#if MYSQL_VERSION_ID < 50500
+  if (pthread_mutex_init(&spider_tbl_mutex, MY_MUTEX_INIT_FAST))
+#else
+  if (mysql_mutex_init(spd_key_mutex_tbl,
+    &spider_tbl_mutex, MY_MUTEX_INIT_FAST))
+#endif
+    goto error_tbl_mutex_init;
+#if MYSQL_VERSION_ID < 50500
+  if (pthread_mutex_init(&spider_thread_id_mutex, MY_MUTEX_INIT_FAST))
+#else
+  if (mysql_mutex_init(spd_key_thread_id,
+    &spider_thread_id_mutex, MY_MUTEX_INIT_FAST))
+#endif
+    goto error_thread_id_mutex_init;
+#if MYSQL_VERSION_ID < 50500
+  if (pthread_mutex_init(&spider_conn_id_mutex, MY_MUTEX_INIT_FAST))
+#else
+  if (mysql_mutex_init(spd_key_conn_id,
+    &spider_conn_id_mutex, MY_MUTEX_INIT_FAST))
+#endif
+    goto error_conn_id_mutex_init;
+#if MYSQL_VERSION_ID < 50500
+  if (pthread_mutex_init(&spider_ipport_conn_mutex, MY_MUTEX_INIT_FAST))
+#else
+  if (mysql_mutex_init(spd_key_mutex_ipport_count,
+    &spider_ipport_conn_mutex, MY_MUTEX_INIT_FAST))
+#endif
+    goto error_ipport_count_mutex_init;
+
+#if MYSQL_VERSION_ID < 50500
+  if (pthread_mutex_init(&spider_init_error_tbl_mutex, MY_MUTEX_INIT_FAST))
+#else
+  if (mysql_mutex_init(spd_key_mutex_init_error_tbl,
+    &spider_init_error_tbl_mutex, MY_MUTEX_INIT_FAST))
+#endif
+    goto error_init_error_tbl_mutex_init;
+
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+#if MYSQL_VERSION_ID < 50500
+  if (pthread_mutex_init(&spider_wide_share_mutex, MY_MUTEX_INIT_FAST))
+#else
+  if (mysql_mutex_init(spd_key_mutex_wide_share,
+    &spider_wide_share_mutex, MY_MUTEX_INIT_FAST))
+#endif
+    goto error_wide_share_mutex_init;
+
+#endif
+#if MYSQL_VERSION_ID < 50500
+  if (pthread_mutex_init(&spider_lgtm_tblhnd_share_mutex, MY_MUTEX_INIT_FAST))
+#else
+  if (mysql_mutex_init(spd_key_mutex_lgtm_tblhnd_share,
+    &spider_lgtm_tblhnd_share_mutex, MY_MUTEX_INIT_FAST))
+#endif
+    goto error_lgtm_tblhnd_share_mutex_init;
+
+#if MYSQL_VERSION_ID < 50500
+  if (pthread_mutex_init(&spider_conn_mutex, MY_MUTEX_INIT_FAST))
+#else
+  if (mysql_mutex_init(spd_key_mutex_conn,
+    &spider_conn_mutex, MY_MUTEX_INIT_FAST))
+#endif
+    goto error_conn_mutex_init;
+
+#if MYSQL_VERSION_ID < 50500
+  if (pthread_mutex_init(&spider_open_conn_mutex, MY_MUTEX_INIT_FAST))
+#else
+  if (mysql_mutex_init(spd_key_mutex_open_conn,
+    &spider_open_conn_mutex, MY_MUTEX_INIT_FAST))
+#endif
+    goto error_open_conn_mutex_init;
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+#if MYSQL_VERSION_ID < 50500
+  if (pthread_mutex_init(&spider_hs_r_conn_mutex, MY_MUTEX_INIT_FAST))
+#else
+  if (mysql_mutex_init(spd_key_mutex_hs_r_conn,
+    &spider_hs_r_conn_mutex, MY_MUTEX_INIT_FAST))
+#endif
+    goto error_hs_r_conn_mutex_init;
+
+#if MYSQL_VERSION_ID < 50500
+  if (pthread_mutex_init(&spider_hs_w_conn_mutex, MY_MUTEX_INIT_FAST))
+#else
+  if (mysql_mutex_init(spd_key_mutex_hs_w_conn,
+    &spider_hs_w_conn_mutex, MY_MUTEX_INIT_FAST))
+#endif
+    goto error_hs_w_conn_mutex_init;
+
+#endif
+#if MYSQL_VERSION_ID < 50500
+  if (pthread_mutex_init(&spider_allocated_thds_mutex, MY_MUTEX_INIT_FAST))
+#else
+  if (mysql_mutex_init(spd_key_mutex_allocated_thds,
+    &spider_allocated_thds_mutex, MY_MUTEX_INIT_FAST))
+#endif
+    goto error_allocated_thds_mutex_init;
+
+#if MYSQL_VERSION_ID < 50500
+  if (pthread_mutex_init(&spider_mon_table_cache_mutex, MY_MUTEX_INIT_FAST))
+#else
+  if (mysql_mutex_init(spd_key_mutex_mon_table_cache,
+    &spider_mon_table_cache_mutex, MY_MUTEX_INIT_FAST))
+#endif
+    goto error_mon_table_cache_mutex_init;
+
+#if MYSQL_VERSION_ID < 50500
+  if (pthread_mutex_init(&spider_mem_calc_mutex, MY_MUTEX_INIT_FAST))
+#else
+  if (mysql_mutex_init(spd_key_mutex_mem_calc,
+    &spider_mem_calc_mutex, MY_MUTEX_INIT_FAST))
+#endif
+    goto error_mem_calc_mutex_init;
+
+  if (my_hash_init(PSI_INSTRUMENT_ME, &spider_open_tables, spd_charset_utf8mb3_bin, 32, 0, 0,
+                   (my_hash_get_key) spider_tbl_get_key, 0, 0))
+    goto error_open_tables_hash_init;
+
+  spider_alloc_calc_mem_init(spider_open_tables, 143);
+  spider_alloc_calc_mem(NULL,
+    spider_open_tables,
+    spider_open_tables.array.max_element *
+    spider_open_tables.array.size_of_element);
+  if (my_hash_init(PSI_INSTRUMENT_ME, &spider_init_error_tables, spd_charset_utf8mb3_bin, 32, 0, 0,
+                   (my_hash_get_key) spider_tbl_get_key, 0, 0))
+    goto error_init_error_tables_hash_init;
+
+  spider_alloc_calc_mem_init(spider_init_error_tables, 144);
+  spider_alloc_calc_mem(NULL,
+    spider_init_error_tables,
+    spider_init_error_tables.array.max_element *
+    spider_init_error_tables.array.size_of_element);
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  if(
+    my_hash_init(PSI_INSTRUMENT_ME, &spider_open_wide_share, spd_charset_utf8mb3_bin, 32, 0, 0,
+                   (my_hash_get_key) spider_wide_share_get_key, 0, 0)
+  )
+    goto error_open_wide_share_hash_init;
+
+  spider_alloc_calc_mem_init(spider_open_wide_share, 145);
+  spider_alloc_calc_mem(NULL,
+    spider_open_wide_share,
+    spider_open_wide_share.array.max_element *
+    spider_open_wide_share.array.size_of_element);
+#endif
+  if (my_hash_init(PSI_INSTRUMENT_ME, &spider_lgtm_tblhnd_share_hash,
+                   spd_charset_utf8mb3_bin, 32, 0, 0,
+                   (my_hash_get_key) spider_lgtm_tblhnd_share_hash_get_key, 0, 0))
+    goto error_lgtm_tblhnd_share_hash_init;
+
+  spider_alloc_calc_mem_init(spider_lgtm_tblhnd_share_hash, 245);
+  spider_alloc_calc_mem(NULL,
+    spider_lgtm_tblhnd_share_hash,
+    spider_lgtm_tblhnd_share_hash.array.max_element *
+    spider_lgtm_tblhnd_share_hash.array.size_of_element);
+  if (my_hash_init(PSI_INSTRUMENT_ME, &spider_open_connections, spd_charset_utf8mb3_bin, 32, 0, 0,
+                   (my_hash_get_key) spider_conn_get_key, 0, 0))
+    goto error_open_connections_hash_init;
+
+  if (my_hash_init(PSI_INSTRUMENT_ME, &spider_ipport_conns, spd_charset_utf8mb3_bin, 32, 0, 0,
+                   (my_hash_get_key) spider_ipport_conn_get_key,
+                   spider_free_ipport_conn, 0))
+      goto error_ipport_conn__hash_init;
+
+  spider_alloc_calc_mem_init(spider_open_connections, 146);
+  spider_alloc_calc_mem(NULL,
+    spider_open_connections,
+    spider_open_connections.array.max_element *
+    spider_open_connections.array.size_of_element);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (my_hash_init(PSI_INSTRUMENT_ME, &spider_hs_r_conn_hash, spd_charset_utf8mb3_bin, 32, 0, 0,
+                   (my_hash_get_key) spider_conn_get_key, 0, 0))
+    goto error_hs_r_conn_hash_init;
+
+  spider_alloc_calc_mem_init(spider_hs_r_conn_hash, 147);
+  spider_alloc_calc_mem(NULL,
+    spider_hs_r_conn_hash,
+    spider_hs_r_conn_hash.array.max_element *
+    spider_hs_r_conn_hash.array.size_of_element);
+  if (my_hash_init(PSI_INSTRUMENT_ME, &spider_hs_w_conn_hash, spd_charset_utf8mb3_bin, 32, 0, 0,
+                   (my_hash_get_key) spider_conn_get_key, 0, 0))
+    goto error_hs_w_conn_hash_init;
+
+  spider_alloc_calc_mem_init(spider_hs_w_conn_hash, 148);
+  spider_alloc_calc_mem(NULL,
+    spider_hs_w_conn_hash,
+    spider_hs_w_conn_hash.array.max_element *
+    spider_hs_w_conn_hash.array.size_of_element);
+#endif
+  if (my_hash_init(PSI_INSTRUMENT_ME, &spider_allocated_thds, spd_charset_utf8mb3_bin, 32, 0, 0,
+                   (my_hash_get_key) spider_allocated_thds_get_key, 0, 0))
+    goto error_allocated_thds_hash_init;
+
+  spider_alloc_calc_mem_init(spider_allocated_thds, 149);
+  spider_alloc_calc_mem(NULL,
+    spider_allocated_thds,
+    spider_allocated_thds.array.max_element *
+    spider_allocated_thds.array.size_of_element);
+
+  if (SPD_INIT_DYNAMIC_ARRAY2(&spider_mon_table_cache, sizeof(SPIDER_MON_KEY),
+      NULL, 64, 64, MYF(MY_WME)))
+    goto error_mon_table_cache_array_init;
+
+  spider_alloc_calc_mem_init(spider_mon_table_cache, 165);
+  spider_alloc_calc_mem(NULL,
+    spider_mon_table_cache,
+    spider_mon_table_cache.max_element *
+    spider_mon_table_cache.size_of_element);
+
+  if (!(spider_udf_table_mon_mutexes = (pthread_mutex_t *)
+    spider_bulk_malloc(NULL, 53, MYF(MY_WME | MY_ZEROFILL),
+      &spider_udf_table_mon_mutexes, (uint) (sizeof(pthread_mutex_t) *
+        spider_param_udf_table_mon_mutex_count()),
+      &spider_udf_table_mon_conds, (uint) (sizeof(pthread_cond_t) *
+        spider_param_udf_table_mon_mutex_count()),
+      &spider_udf_table_mon_list_hash, (uint) (sizeof(HASH) *
+        spider_param_udf_table_mon_mutex_count()),
+      NullS))
+  )
+    goto error_alloc_mon_mutxes;
+
+  for (roop_count = 0;
+    roop_count < (int) spider_param_udf_table_mon_mutex_count();
+    roop_count++)
+  {
+#if MYSQL_VERSION_ID < 50500
+    if (pthread_mutex_init(&spider_udf_table_mon_mutexes[roop_count],
+      MY_MUTEX_INIT_FAST))
+#else
+    if (mysql_mutex_init(spd_key_mutex_udf_table_mon,
+      &spider_udf_table_mon_mutexes[roop_count], MY_MUTEX_INIT_FAST))
+#endif
+      goto error_init_udf_table_mon_mutex;
+  }
+  for (roop_count = 0;
+    roop_count < (int) spider_param_udf_table_mon_mutex_count();
+    roop_count++)
+  {
+#if MYSQL_VERSION_ID < 50500
+    if (pthread_cond_init(&spider_udf_table_mon_conds[roop_count], NULL))
+#else
+    if (mysql_cond_init(spd_key_cond_udf_table_mon,
+      &spider_udf_table_mon_conds[roop_count], NULL))
+#endif
+      goto error_init_udf_table_mon_cond;
+  }
+  for (roop_count = 0;
+    roop_count < (int) spider_param_udf_table_mon_mutex_count();
+    roop_count++)
+  {
+    if (my_hash_init(PSI_INSTRUMENT_ME, &spider_udf_table_mon_list_hash[roop_count],
+      spd_charset_utf8mb3_bin, 32, 0, 0,
+      (my_hash_get_key) spider_udf_tbl_mon_list_key, 0, 0))
+      goto error_init_udf_table_mon_list_hash;
+
+    spider_alloc_calc_mem_init(spider_udf_table_mon_list_hash, 150);
+    spider_alloc_calc_mem(NULL,
+      spider_udf_table_mon_list_hash,
+      spider_udf_table_mon_list_hash[roop_count].array.max_element *
+      spider_udf_table_mon_list_hash[roop_count].array.size_of_element);
+  }
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  if (!(spider_table_sts_threads = (SPIDER_THREAD *)
+    spider_bulk_malloc(NULL, 256, MYF(MY_WME | MY_ZEROFILL),
+      &spider_table_sts_threads, (uint) (sizeof(SPIDER_THREAD) *
+        spider_param_table_sts_thread_count()),
+      &spider_table_crd_threads, (uint) (sizeof(SPIDER_THREAD) *
+        spider_param_table_crd_thread_count()),
+      NullS))
+  )
+    goto error_alloc_mon_mutxes;
+  spider_table_sts_threads[0].init_command = TRUE;
+
+  for (roop_count = 0;
+    roop_count < (int) spider_param_table_sts_thread_count();
+    roop_count++)
+  {
+    if ((error_num = spider_create_sts_threads(&spider_table_sts_threads[roop_count])))
+    {
+      goto error_init_table_sts_threads;
+    }
+  }
+  for (roop_count = 0;
+    roop_count < (int) spider_param_table_crd_thread_count();
+    roop_count++)
+  {
+    if ((error_num = spider_create_crd_threads(&spider_table_crd_threads[roop_count])))
+    {
+      goto error_init_table_crd_threads;
+    }
+  }
+#endif
+
+  spider_dbton_mysql.dbton_id = dbton_id;
+  spider_dbton_mysql.db_util->dbton_id = dbton_id;
+  spider_dbton[dbton_id] = spider_dbton_mysql;
+  ++dbton_id;
+  spider_dbton_mariadb.dbton_id = dbton_id;
+  spider_dbton_mariadb.db_util->dbton_id = dbton_id;
+  spider_dbton[dbton_id] = spider_dbton_mariadb;
+  ++dbton_id;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  spider_dbton_handlersocket.dbton_id = dbton_id;
+  spider_dbton_handlersocket.db_util->dbton_id = dbton_id;
+  spider_dbton[dbton_id] = spider_dbton_handlersocket;
+  ++dbton_id;
+#endif
+#ifdef HAVE_ORACLE_OCI
+  spider_dbton_oracle.dbton_id = dbton_id;
+  spider_dbton_oracle.db_util->dbton_id = dbton_id;
+  spider_dbton[dbton_id] = spider_dbton_oracle;
+  ++dbton_id;
+#endif
+  for (roop_count = 0; roop_count < SPIDER_DBTON_SIZE; roop_count++)
+  {
+    if (spider_dbton[roop_count].init)
+    {
+      if ((error_num = spider_dbton[roop_count].init()))
+      {
+        goto error_init_dbton;
+      }
+    }
+  }
+  DBUG_RETURN(0);
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+error_init_dbton:
+  for (roop_count--; roop_count >= 0; roop_count--)
+  {
+    if (spider_dbton[roop_count].deinit)
+    {
+      spider_dbton[roop_count].deinit();
+    }
+  }
+  roop_count = spider_param_table_crd_thread_count() - 1;
+error_init_table_crd_threads:
+  for (; roop_count >= 0; roop_count--)
+  {
+    spider_free_crd_threads(&spider_table_crd_threads[roop_count]);
+  }
+  roop_count = spider_param_table_sts_thread_count() - 1;
+error_init_table_sts_threads:
+  for (; roop_count >= 0; roop_count--)
+  {
+    spider_free_sts_threads(&spider_table_sts_threads[roop_count]);
+  }
+  spider_free(NULL, spider_table_sts_threads, MYF(0));
+  roop_count = spider_param_udf_table_mon_mutex_count() - 1;
+#endif
+error_init_udf_table_mon_list_hash:
+  for (; roop_count >= 0; roop_count--)
+  {
+    spider_free_mem_calc(NULL,
+      spider_udf_table_mon_list_hash_id,
+      spider_udf_table_mon_list_hash[roop_count].array.max_element *
+      spider_udf_table_mon_list_hash[roop_count].array.size_of_element);
+    my_hash_free(&spider_udf_table_mon_list_hash[roop_count]);
+  }
+  roop_count = spider_param_udf_table_mon_mutex_count() - 1;
+error_init_udf_table_mon_cond:
+  for (; roop_count >= 0; roop_count--)
+    pthread_cond_destroy(&spider_udf_table_mon_conds[roop_count]);
+  roop_count = spider_param_udf_table_mon_mutex_count() - 1;
+error_init_udf_table_mon_mutex:
+  for (; roop_count >= 0; roop_count--)
+    pthread_mutex_destroy(&spider_udf_table_mon_mutexes[roop_count]);
+  spider_free(NULL, spider_udf_table_mon_mutexes, MYF(0));
+error_alloc_mon_mutxes:
+  spider_free_mem_calc(NULL,
+    spider_mon_table_cache_id,
+    spider_mon_table_cache.max_element *
+    spider_mon_table_cache.size_of_element);
+  delete_dynamic(&spider_mon_table_cache);
+error_mon_table_cache_array_init:
+  spider_free_mem_calc(NULL,
+    spider_allocated_thds_id,
+    spider_allocated_thds.array.max_element *
+    spider_allocated_thds.array.size_of_element);
+  my_hash_free(&spider_allocated_thds);
+error_allocated_thds_hash_init:
+  my_hash_free(&spider_ipport_conns);
+error_ipport_conn__hash_init:
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  spider_free_mem_calc(NULL,
+    spider_hs_w_conn_hash_id,
+    spider_hs_w_conn_hash.array.max_element *
+    spider_hs_w_conn_hash.array.size_of_element);
+  my_hash_free(&spider_hs_w_conn_hash);
+error_hs_w_conn_hash_init:
+  spider_free_mem_calc(NULL,
+    spider_hs_r_conn_hash_id,
+    spider_hs_r_conn_hash.array.max_element *
+    spider_hs_r_conn_hash.array.size_of_element);
+  my_hash_free(&spider_hs_r_conn_hash);
+error_hs_r_conn_hash_init:
+#endif
+  spider_free_mem_calc(NULL,
+    spider_open_connections_id,
+    spider_open_connections.array.max_element *
+    spider_open_connections.array.size_of_element);
+  my_hash_free(&spider_open_connections);
+error_open_connections_hash_init:
+  spider_free_mem_calc(NULL,
+    spider_lgtm_tblhnd_share_hash_id,
+    spider_lgtm_tblhnd_share_hash.array.max_element *
+    spider_lgtm_tblhnd_share_hash.array.size_of_element);
+  my_hash_free(&spider_lgtm_tblhnd_share_hash);
+error_lgtm_tblhnd_share_hash_init:
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  spider_free_mem_calc(NULL,
+    spider_open_wide_share_id,
+    spider_open_wide_share.array.max_element *
+    spider_open_wide_share.array.size_of_element);
+  my_hash_free(&spider_open_wide_share);
+error_open_wide_share_hash_init:
+#endif
+  spider_free_mem_calc(NULL,
+    spider_init_error_tables_id,
+    spider_init_error_tables.array.max_element *
+    spider_init_error_tables.array.size_of_element);
+  my_hash_free(&spider_init_error_tables);
+error_init_error_tables_hash_init:
+  spider_free_mem_calc(NULL,
+    spider_open_tables_id,
+    spider_open_tables.array.max_element *
+    spider_open_tables.array.size_of_element);
+  my_hash_free(&spider_open_tables);
+error_open_tables_hash_init:
+  pthread_mutex_destroy(&spider_mem_calc_mutex);
+error_mem_calc_mutex_init:
+  pthread_mutex_destroy(&spider_mon_table_cache_mutex);
+error_mon_table_cache_mutex_init:
+  pthread_mutex_destroy(&spider_allocated_thds_mutex);
+error_allocated_thds_mutex_init:
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  pthread_mutex_destroy(&spider_hs_w_conn_mutex);
+error_hs_w_conn_mutex_init:
+  pthread_mutex_destroy(&spider_hs_r_conn_mutex);
+error_hs_r_conn_mutex_init:
+#endif
+  pthread_mutex_destroy(&spider_open_conn_mutex);
+error_open_conn_mutex_init:
+  pthread_mutex_destroy(&spider_conn_mutex);
+error_conn_mutex_init:
+  pthread_mutex_destroy(&spider_lgtm_tblhnd_share_mutex);
+error_lgtm_tblhnd_share_mutex_init:
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  pthread_mutex_destroy(&spider_wide_share_mutex);
+error_wide_share_mutex_init:
+#endif
+  pthread_mutex_destroy(&spider_init_error_tbl_mutex);
+error_init_error_tbl_mutex_init:
+  pthread_mutex_destroy(&spider_ipport_conn_mutex);
+error_ipport_count_mutex_init:
+  pthread_mutex_destroy(&spider_conn_id_mutex);
+error_conn_id_mutex_init:
+  pthread_mutex_destroy(&spider_thread_id_mutex);
+error_thread_id_mutex_init:
+  pthread_mutex_destroy(&spider_tbl_mutex);
+error_tbl_mutex_init:
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+/*
+error_pt_attr_setstate:
+*/
+  pthread_attr_destroy(&spider_pt_attr);
+error_pt_attr_init:
+#endif
+  DBUG_RETURN(error_num);
+}
+
+char *spider_create_string(
+  const char *str,
+  uint length
+) {
+  char *res;
+  DBUG_ENTER("spider_create_string");
+  if (!(res = (char*) spider_malloc(spider_current_trx, 13, length + 1,
+    MYF(MY_WME))))
+    DBUG_RETURN(NULL);
+  memcpy(res, str, length);
+  res[length] = '\0';
+  DBUG_RETURN(res);
+}
+
+char *spider_create_table_name_string(
+  const char *table_name,
+  const char *part_name,
+  const char *sub_name
+) {
+  char *res, *tmp;
+  uint length = strlen(table_name);
+  DBUG_ENTER("spider_create_table_name_string");
+  if (part_name)
+  {
+    length += sizeof("#P#") - 1 + strlen(part_name);
+    if (sub_name)
+      length += sizeof("#SP#") - 1 + strlen(sub_name);
+  }
+  if (!(res = (char*) spider_malloc(spider_current_trx, 14, length + 1,
+    MYF(MY_WME))))
+    DBUG_RETURN(NULL);
+  tmp = strmov(res, table_name);
+  if (part_name)
+  {
+    tmp = strmov(tmp, "#P#");
+    tmp = strmov(tmp, part_name);
+    if (sub_name)
+    {
+      tmp = strmov(tmp, "#SP#");
+      tmp = strmov(tmp, sub_name);
+    }
+  }
+  DBUG_RETURN(res);
+}
+
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+void spider_get_partition_info(
+  const char *table_name,
+  uint table_name_length,
+  const TABLE_SHARE *table_share,
+  partition_info *part_info,
+  partition_element **part_elem,
+  partition_element **sub_elem
+) {
+  char tmp_name[FN_REFLEN + 1];
+  partition_element *tmp_part_elem = NULL, *tmp_sub_elem = NULL;
+  bool tmp_flg = FALSE, tmp_find_flg = FALSE;
+  DBUG_ENTER("spider_get_partition_info");
+  *part_elem = NULL;
+  *sub_elem = NULL;
+  if (!part_info)
+    DBUG_VOID_RETURN;
+
+  if (!memcmp(table_name + table_name_length - 5, "#TMP#", 5))
+    tmp_flg = TRUE;
+
+  DBUG_PRINT("info",("spider table_name=%s", table_name));
+  List_iterator<partition_element> part_it(part_info->partitions);
+  while ((*part_elem = part_it++))
+  {
+    if ((*part_elem)->subpartitions.elements)
+    {
+      List_iterator<partition_element> sub_it((*part_elem)->subpartitions);
+      while ((*sub_elem = sub_it++))
+      {
+        if (SPIDER_create_subpartition_name(
+          tmp_name, FN_REFLEN + 1, table_share->path.str,
+          (*part_elem)->partition_name, (*sub_elem)->partition_name,
+          NORMAL_PART_NAME))
+        {
+          DBUG_VOID_RETURN;
+        }
+        DBUG_PRINT("info",("spider tmp_name=%s", tmp_name));
+        if (!memcmp(table_name, tmp_name, table_name_length + 1))
+          DBUG_VOID_RETURN;
+        if (
+          tmp_flg &&
+          *(tmp_name + table_name_length - 5) == '\0' &&
+          !memcmp(table_name, tmp_name, table_name_length - 5)
+        ) {
+          tmp_part_elem = *part_elem;
+          tmp_sub_elem = *sub_elem;
+          tmp_flg = FALSE;
+          tmp_find_flg = TRUE;
+        }
+      }
+    } else {
+      if (SPIDER_create_partition_name(
+        tmp_name, FN_REFLEN + 1, table_share->path.str,
+        (*part_elem)->partition_name, NORMAL_PART_NAME, TRUE))
+      {
+        DBUG_VOID_RETURN;
+      }
+      DBUG_PRINT("info",("spider tmp_name=%s", tmp_name));
+      if (!memcmp(table_name, tmp_name, table_name_length + 1))
+        DBUG_VOID_RETURN;
+      if (
+        tmp_flg &&
+        *(tmp_name + table_name_length - 5) == '\0' &&
+        !memcmp(table_name, tmp_name, table_name_length - 5)
+      ) {
+        tmp_part_elem = *part_elem;
+        tmp_flg = FALSE;
+        tmp_find_flg = TRUE;
+      }
+    }
+  }
+  if (tmp_find_flg)
+  {
+    *part_elem = tmp_part_elem;
+    *sub_elem = tmp_sub_elem;
+    DBUG_PRINT("info",("spider tmp find"));
+    DBUG_VOID_RETURN;
+  }
+  *part_elem = NULL;
+  *sub_elem = NULL;
+  DBUG_PRINT("info",("spider no hit"));
+  DBUG_VOID_RETURN;
+}
+#endif
+
+int spider_get_sts(
+  SPIDER_SHARE *share,
+  int link_idx,
+  time_t tmp_time,
+  ha_spider *spider,
+  double sts_interval,
+  int sts_mode,
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  int sts_sync,
+#endif
+  int sts_sync_level,
+  uint flag
+) {
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  int get_type;
+#endif
+  int error_num = 0;
+  bool need_to_get = TRUE;
+  DBUG_ENTER("spider_get_sts");
+
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  if (
+    sts_sync == 0
+  ) {
+    /* get */
+    get_type = 1;
+  } else if (
+    !share->wide_share->sts_init
+  ) {
+    pthread_mutex_lock(&share->wide_share->sts_mutex);
+    if (!share->wide_share->sts_init)
+    {
+      /* get after mutex_lock */
+      get_type = 2;
+    } else {
+      pthread_mutex_unlock(&share->wide_share->sts_mutex);
+      /* copy */
+      get_type = 0;
+    }
+  } else if (
+    difftime(share->sts_get_time, share->wide_share->sts_get_time) <
+      sts_interval
+  ) {
+    /* copy */
+    get_type = 0;
+  } else if (
+    !pthread_mutex_trylock(&share->wide_share->sts_mutex)
+  ) {
+    /* get after mutex_trylock */
+    get_type = 3;
+  } else {
+    /* copy */
+    get_type = 0;
+  }
+#endif
+  if (
+    !share->sts_init &&
+    spider_param_load_sts_at_startup(share->load_sts_at_startup) &&
+    (!share->init || share->init_error)
+  ) {
+    error_num = spider_sys_get_table_sts(
+      current_thd,
+      share->lgtm_tblhnd_share->table_name,
+      share->lgtm_tblhnd_share->table_name_length,
+      &share->stat,
+      FALSE
+    );
+    if (
+      !error_num ||
+      (error_num != HA_ERR_KEY_NOT_FOUND && error_num != HA_ERR_END_OF_FILE)
+    )
+    need_to_get = FALSE;
+  }
+
+  if (need_to_get)
+  {
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+    if (get_type == 0)
+      spider_copy_sts_to_share(share, share->wide_share);
+    else {
+#endif
+      error_num = spider_db_show_table_status(spider, link_idx, sts_mode, flag);
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+    }
+#endif
+  }
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  if (get_type >= 2)
+    pthread_mutex_unlock(&share->wide_share->sts_mutex);
+#endif
+  if (error_num)
+  {
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+    SPIDER_PARTITION_HANDLER_SHARE *partition_handler_share =
+      spider->partition_handler_share;
+    if (
+      !share->wide_share->sts_init &&
+      sts_sync >= sts_sync_level &&
+      get_type > 1 &&
+      partition_handler_share &&
+      partition_handler_share->handlers &&
+      partition_handler_share->handlers[0] == spider
+    ) {
+      int roop_count;
+      ha_spider *tmp_spider;
+      SPIDER_SHARE *tmp_share;
+      double tmp_sts_interval;
+      int tmp_sts_mode;
+      int tmp_sts_sync;
+      THD *thd = spider->wide_handler->trx->thd;
+      for (roop_count = 1;
+        roop_count < (int) partition_handler_share->no_parts;
+        roop_count++)
+      {
+        tmp_spider =
+          (ha_spider *) partition_handler_share->handlers[roop_count];
+        tmp_share = tmp_spider->share;
+        tmp_sts_interval = spider_param_sts_interval(thd, share->sts_interval);
+        tmp_sts_mode = spider_param_sts_mode(thd, share->sts_mode);
+        tmp_sts_sync = spider_param_sts_sync(thd, share->sts_sync);
+        spider_get_sts(tmp_share, tmp_spider->search_link_idx,
+          tmp_time, tmp_spider, tmp_sts_interval, tmp_sts_mode, tmp_sts_sync,
+          1, flag);
+        if (share->wide_share->sts_init)
+        {
+          error_num = 0;
+          thd->clear_error();
+          get_type = 0;
+          spider_copy_sts_to_share(share, share->wide_share);
+          break;
+        }
+      }
+    }
+    if (error_num)
+#endif
+      DBUG_RETURN(error_num);
+  }
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  if (sts_sync >= sts_sync_level && get_type > 0)
+  {
+    spider_copy_sts_to_wide_share(share->wide_share, share);
+    share->wide_share->sts_get_time = tmp_time;
+    share->wide_share->sts_init = TRUE;
+  }
+#endif
+  share->sts_get_time = tmp_time;
+  share->sts_init = TRUE;
+  DBUG_RETURN(0);
+}
+
+int spider_get_crd(
+  SPIDER_SHARE *share,
+  int link_idx,
+  time_t tmp_time,
+  ha_spider *spider,
+  TABLE *table,
+  double crd_interval,
+  int crd_mode,
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  int crd_sync,
+#endif
+  int crd_sync_level
+) {
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  int get_type;
+#endif
+  int error_num = 0;
+  bool need_to_get = TRUE;
+  DBUG_ENTER("spider_get_crd");
+
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  if (
+    crd_sync == 0
+  ) {
+    /* get */
+    get_type = 1;
+  } else if (
+    !share->wide_share->crd_init
+  ) {
+    pthread_mutex_lock(&share->wide_share->crd_mutex);
+    if (!share->wide_share->crd_init)
+    {
+      /* get after mutex_lock */
+      get_type = 2;
+    } else {
+      pthread_mutex_unlock(&share->wide_share->crd_mutex);
+      /* copy */
+      get_type = 0;
+    }
+  } else if (
+    difftime(share->crd_get_time, share->wide_share->crd_get_time) <
+      crd_interval
+  ) {
+    /* copy */
+    get_type = 0;
+  } else if (
+    !pthread_mutex_trylock(&share->wide_share->crd_mutex)
+  ) {
+    /* get after mutex_trylock */
+    get_type = 3;
+  } else {
+    /* copy */
+    get_type = 0;
+  }
+#endif
+  if (
+    !share->crd_init &&
+    spider_param_load_sts_at_startup(share->load_crd_at_startup)
+  ) {
+    error_num = spider_sys_get_table_crd(
+      current_thd,
+      share->lgtm_tblhnd_share->table_name,
+      share->lgtm_tblhnd_share->table_name_length,
+      share->cardinality,
+      table->s->fields,
+      FALSE
+    );
+    if (
+      !error_num ||
+      (error_num != HA_ERR_KEY_NOT_FOUND && error_num != HA_ERR_END_OF_FILE)
+    )
+    need_to_get = FALSE;
+  }
+
+  if (need_to_get)
+  {
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+    if (get_type == 0)
+      spider_copy_crd_to_share(share, share->wide_share,
+        table->s->fields);
+    else {
+#endif
+      error_num = spider_db_show_index(spider, link_idx, table, crd_mode);
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+    }
+#endif
+  }
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  if (get_type >= 2)
+    pthread_mutex_unlock(&share->wide_share->crd_mutex);
+#endif
+  if (error_num)
+  {
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+    SPIDER_PARTITION_HANDLER_SHARE *partition_handler_share =
+      spider->partition_handler_share;
+    if (
+      !share->wide_share->crd_init &&
+      crd_sync >= crd_sync_level &&
+      get_type > 1 &&
+      partition_handler_share &&
+      partition_handler_share->handlers &&
+      partition_handler_share->handlers[0] == spider
+    ) {
+      int roop_count;
+      ha_spider *tmp_spider;
+      SPIDER_SHARE *tmp_share;
+      double tmp_crd_interval;
+      int tmp_crd_mode;
+      int tmp_crd_sync;
+      THD *thd = spider->wide_handler->trx->thd;
+      for (roop_count = 1;
+        roop_count < (int) partition_handler_share->no_parts;
+        roop_count++)
+      {
+        tmp_spider =
+          (ha_spider *) partition_handler_share->handlers[roop_count];
+        tmp_share = tmp_spider->share;
+        tmp_crd_interval = spider_param_crd_interval(thd, share->crd_interval);
+        tmp_crd_mode = spider_param_crd_mode(thd, share->crd_mode);
+        tmp_crd_sync = spider_param_crd_sync(thd, share->crd_sync);
+        spider_get_crd(tmp_share, tmp_spider->search_link_idx,
+          tmp_time, tmp_spider, table, tmp_crd_interval, tmp_crd_mode,
+          tmp_crd_sync, 1);
+        if (share->wide_share->crd_init)
+        {
+          error_num = 0;
+          thd->clear_error();
+          get_type = 0;
+          spider_copy_crd_to_share(share, share->wide_share,
+            table->s->fields);
+          break;
+        }
+      }
+    }
+    if (error_num)
+#endif
+      DBUG_RETURN(error_num);
+  }
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  if (crd_sync >= crd_sync_level && get_type > 0)
+  {
+    spider_copy_crd_to_wide_share(share->wide_share, share,
+      table->s->fields);
+    share->wide_share->crd_get_time = tmp_time;
+    share->wide_share->crd_init = TRUE;
+  }
+#endif
+  share->crd_get_time = tmp_time;
+  share->crd_init = TRUE;
+  DBUG_RETURN(0);
+}
+
+void spider_set_result_list_param(
+  ha_spider *spider
+) {
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  SPIDER_SHARE *share = spider->share;
+  THD *thd = spider->wide_handler->trx->thd;
+  DBUG_ENTER("spider_set_result_list_param");
+  result_list->internal_offset =
+    spider_param_internal_offset(thd, share->internal_offset);
+  result_list->internal_limit =
+#ifdef INFO_KIND_FORCE_LIMIT_BEGIN
+    spider->wide_handler->info_limit < 9223372036854775807LL ?
+    spider->wide_handler->info_limit :
+#endif
+    spider_param_internal_limit(thd, share->internal_limit);
+  result_list->split_read = spider_split_read_param(spider);
+  if (spider->support_multi_split_read_sql())
+  {
+    result_list->multi_split_read =
+      spider_param_multi_split_read(thd, share->multi_split_read);
+  } else {
+    result_list->multi_split_read = 1;
+  }
+  result_list->max_order =
+    spider_param_max_order(thd, share->max_order);
+  result_list->quick_mode =
+    spider_param_quick_mode(thd, share->quick_mode);
+  result_list->quick_page_size =
+    spider_param_quick_page_size(thd, share->quick_page_size);
+  result_list->quick_page_byte =
+    spider_param_quick_page_byte(thd, share->quick_page_byte);
+  result_list->low_mem_read =
+    spider_param_low_mem_read(thd, share->low_mem_read);
+  DBUG_VOID_RETURN;
+}
+
+SPIDER_INIT_ERROR_TABLE *spider_get_init_error_table(
+  SPIDER_TRX *trx,
+  SPIDER_SHARE *share,
+  bool create
+) {
+  SPIDER_INIT_ERROR_TABLE *spider_init_error_table;
+  char *tmp_name;
+  DBUG_ENTER("spider_get_init_error_table");
+  pthread_mutex_lock(&spider_init_error_tbl_mutex);
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  if (!(spider_init_error_table = (SPIDER_INIT_ERROR_TABLE *)
+    my_hash_search_using_hash_value(
+    &spider_init_error_tables, share->table_name_hash_value,
+    (uchar*) share->table_name, share->table_name_length)))
+#else
+  if (!(spider_init_error_table = (SPIDER_INIT_ERROR_TABLE *) my_hash_search(
+    &spider_init_error_tables,
+    (uchar*) share->table_name, share->table_name_length)))
+#endif
+  {
+    if (!create)
+    {
+      pthread_mutex_unlock(&spider_init_error_tbl_mutex);
+      DBUG_RETURN(NULL);
+    }
+    if (!(spider_init_error_table = (SPIDER_INIT_ERROR_TABLE *)
+      spider_bulk_malloc(spider_current_trx, 54, MYF(MY_WME | MY_ZEROFILL),
+        &spider_init_error_table, (uint) (sizeof(*spider_init_error_table)),
+        &tmp_name, (uint) (share->table_name_length + 1),
+        NullS))
+    ) {
+      pthread_mutex_unlock(&spider_init_error_tbl_mutex);
+      DBUG_RETURN(NULL);
+    }
+    memcpy(tmp_name, share->table_name, share->table_name_length);
+    spider_init_error_table->table_name = tmp_name;
+    spider_init_error_table->table_name_length = share->table_name_length;
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+    spider_init_error_table->table_name_hash_value =
+      share->table_name_hash_value;
+#endif
+    uint old_elements = spider_init_error_tables.array.max_element;
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+    if (my_hash_insert_with_hash_value(&spider_init_error_tables,
+      share->table_name_hash_value, (uchar*) spider_init_error_table))
+#else
+    if (my_hash_insert(&spider_init_error_tables,
+      (uchar*) spider_init_error_table))
+#endif
+    {
+      spider_free(trx, spider_init_error_table, MYF(0));
+      pthread_mutex_unlock(&spider_init_error_tbl_mutex);
+      DBUG_RETURN(NULL);
+    }
+    if (spider_init_error_tables.array.max_element > old_elements)
+    {
+      spider_alloc_calc_mem(spider_current_trx,
+        spider_init_error_tables,
+        (spider_init_error_tables.array.max_element - old_elements) *
+        spider_init_error_tables.array.size_of_element);
+    }
+  }
+  pthread_mutex_unlock(&spider_init_error_tbl_mutex);
+  DBUG_RETURN(spider_init_error_table);
+}
+
+void spider_delete_init_error_table(
+  const char *name
+) {
+  SPIDER_INIT_ERROR_TABLE *spider_init_error_table;
+  uint length = strlen(name);
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  my_hash_value_type hash_value = my_calc_hash(&spider_open_tables,
+    (uchar*) name, length);
+#endif
+  DBUG_ENTER("spider_delete_init_error_table");
+  pthread_mutex_lock(&spider_init_error_tbl_mutex);
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  if ((spider_init_error_table = (SPIDER_INIT_ERROR_TABLE *)
+    my_hash_search_using_hash_value(&spider_init_error_tables, hash_value,
+      (uchar*) name, length)))
+#else
+  if ((spider_init_error_table = (SPIDER_INIT_ERROR_TABLE *) my_hash_search(
+    &spider_init_error_tables, (uchar*) name, length)))
+#endif
+  {
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+    my_hash_delete_with_hash_value(&spider_init_error_tables,
+      spider_init_error_table->table_name_hash_value,
+      (uchar*) spider_init_error_table);
+#else
+    my_hash_delete(&spider_init_error_tables,
+      (uchar*) spider_init_error_table);
+#endif
+    spider_free(spider_current_trx, spider_init_error_table, MYF(0));
+  }
+  pthread_mutex_unlock(&spider_init_error_tbl_mutex);
+  DBUG_VOID_RETURN;
+}
+
+bool spider_check_pk_update(
+  TABLE *table
+) {
+  int roop_count;
+  TABLE_SHARE *table_share = table->s;
+  KEY *key_info;
+  KEY_PART_INFO *key_part;
+  DBUG_ENTER("spider_check_pk_update");
+  if (table_share->primary_key == MAX_KEY)
+    DBUG_RETURN(FALSE);
+
+  key_info = &table_share->key_info[table_share->primary_key];
+  key_part = key_info->key_part;
+  for (roop_count = 0;
+    roop_count < (int) spider_user_defined_key_parts(key_info); roop_count++)
+  {
+    if (bitmap_is_set(table->write_set,
+      key_part[roop_count].field->field_index))
+      DBUG_RETURN(TRUE);
+  }
+  DBUG_RETURN(FALSE);
+}
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+bool spider_check_hs_pk_update(
+  ha_spider *spider,
+  key_range *key
+) {
+  uint roop_count, field_index, set_count = 0;
+  TABLE *table = spider->get_table();
+  TABLE_SHARE *table_share = table->s;
+  SPIDER_SHARE *share = spider->share;
+  KEY *key_info;
+  KEY_PART_INFO *key_part;
+  char buf[MAX_FIELD_WIDTH], buf2[MAX_FIELD_WIDTH];
+  spider_string tmp_str(buf, MAX_FIELD_WIDTH, &my_charset_bin),
+    tmp_str2(buf2, MAX_FIELD_WIDTH, &my_charset_bin);
+  String *str, *str2;
+  DBUG_ENTER("spider_check_hs_pk_update");
+  tmp_str.init_calc_mem(137);
+
+  if (table_share->primary_key == MAX_KEY)
+    DBUG_RETURN(FALSE);
+  memset(spider->tmp_column_bitmap, 0, sizeof(uchar) * share->bitmap_size);
+  key_info = &table->key_info[table_share->primary_key];
+  key_part = key_info->key_part;
+  for (roop_count = 0; roop_count < spider_user_defined_key_parts(key_info);
+    roop_count++)
+  {
+    field_index = key_part[roop_count].field->field_index;
+    if (bitmap_is_set(table->write_set, field_index))
+    {
+      DBUG_PRINT("info", ("spider set key_part=%u field_index=%u",
+        roop_count, field_index));
+      spider_set_bit(spider->tmp_column_bitmap, field_index);
+      set_count++;
+    }
+  }
+  DBUG_PRINT("info", ("spider set_count=%u", set_count));
+
+  Field *field;
+  uint store_length, length, var_len;
+  const uchar *ptr;
+  bool key_eq;
+  key_part_map tgt_key_part_map = key->keypart_map;
+  key_info = &table->key_info[spider->active_index];
+  for (
+    key_part = key_info->key_part,
+    length = 0;
+    tgt_key_part_map;
+    length += store_length,
+    tgt_key_part_map >>= 1,
+    key_part++
+  ) {
+    store_length = key_part->store_length;
+    field = key_part->field;
+    field_index = field->field_index;
+    if (spider_bit_is_set(spider->tmp_column_bitmap, field_index))
+    {
+      ptr = key->key + length;
+      key_eq = (tgt_key_part_map > 1);
+      if (key_part->null_bit && *ptr++)
+      {
+        if (key->flag != HA_READ_KEY_EXACT || !field->is_null())
+        {
+          DBUG_PRINT("info", ("spider flag=%u is_null=%s",
+            key->flag, field->is_null() ? "TRUE" : "FALSE"));
+          DBUG_RETURN(TRUE);
+        }
+      } else {
+        if (
+          field->type() == MYSQL_TYPE_BLOB ||
+          field->real_type() == MYSQL_TYPE_VARCHAR ||
+          field->type() == MYSQL_TYPE_GEOMETRY
+        ) {
+          var_len = uint2korr(ptr);
+          tmp_str.set_quick((char *) ptr + HA_KEY_BLOB_LENGTH, var_len,
+            &my_charset_bin);
+          str = tmp_str.get_str();
+        } else {
+          str = field->val_str(tmp_str.get_str(), ptr);
+          tmp_str.mem_calc();
+        }
+        str2 = field->val_str(tmp_str2.get_str());
+        tmp_str2.mem_calc();
+        if (
+          str->length() != str2->length() ||
+          memcmp(str->ptr(), str2->ptr(), str->length())
+        ) {
+          DBUG_PRINT("info", ("spider length=%u %u",
+            str->length(), str2->length()));
+          DBUG_PRINT("info", ("spider length=%s %s",
+            str->c_ptr_safe(), str2->c_ptr_safe()));
+          DBUG_RETURN(TRUE);
+        }
+      }
+      set_count--;
+    }
+  }
+  DBUG_PRINT("info", ("spider set_count=%u", set_count));
+  if (set_count)
+  {
+    DBUG_RETURN(TRUE);
+  }
+  DBUG_RETURN(FALSE);
+}
+#endif
+#endif
+
+void spider_set_tmp_share_pointer(
+  SPIDER_SHARE *tmp_share,
+  char **tmp_connect_info,
+  uint *tmp_connect_info_length,
+  long *tmp_long,
+  longlong *tmp_longlong
+) {
+  DBUG_ENTER("spider_set_tmp_share_pointer");
+  tmp_share->link_count = 1;
+  tmp_share->all_link_count = 1;
+  tmp_share->server_names = &tmp_connect_info[0];
+  tmp_share->tgt_table_names = &tmp_connect_info[1];
+  tmp_share->tgt_dbs = &tmp_connect_info[2];
+  tmp_share->tgt_hosts = &tmp_connect_info[3];
+  tmp_share->tgt_usernames = &tmp_connect_info[4];
+  tmp_share->tgt_passwords = &tmp_connect_info[5];
+  tmp_share->tgt_sockets = &tmp_connect_info[6];
+  tmp_share->tgt_wrappers = &tmp_connect_info[7];
+  tmp_share->tgt_ssl_cas = &tmp_connect_info[8];
+  tmp_share->tgt_ssl_capaths = &tmp_connect_info[9];
+  tmp_share->tgt_ssl_certs = &tmp_connect_info[10];
+  tmp_share->tgt_ssl_ciphers = &tmp_connect_info[11];
+  tmp_share->tgt_ssl_keys = &tmp_connect_info[12];
+  tmp_share->tgt_default_files = &tmp_connect_info[13];
+  tmp_share->tgt_default_groups = &tmp_connect_info[14];
+  tmp_share->tgt_dsns = &tmp_connect_info[15];
+  tmp_share->tgt_pk_names = &tmp_connect_info[16];
+  tmp_share->tgt_sequence_names = &tmp_connect_info[17];
+  tmp_share->static_link_ids = &tmp_connect_info[18];
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  tmp_share->hs_read_socks = &tmp_connect_info[19];
+  tmp_share->hs_write_socks = &tmp_connect_info[20];
+#endif
+  tmp_share->tgt_ports = &tmp_long[0];
+  tmp_share->tgt_ssl_vscs = &tmp_long[1];
+  tmp_share->link_statuses = &tmp_long[2];
+  tmp_share->monitoring_binlog_pos_at_failing = &tmp_long[3];
+  tmp_share->monitoring_flag = &tmp_long[4];
+  tmp_share->monitoring_kind = &tmp_long[5];
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  tmp_share->monitoring_bg_flag = &tmp_long[6];
+  tmp_share->monitoring_bg_kind = &tmp_long[7];
+#endif
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  tmp_share->use_hs_reads = &tmp_long[8];
+  tmp_share->use_hs_writes = &tmp_long[9];
+  tmp_share->hs_read_ports = &tmp_long[10];
+  tmp_share->hs_write_ports = &tmp_long[11];
+  tmp_share->hs_write_to_reads = &tmp_long[12];
+#endif
+  tmp_share->use_handlers = &tmp_long[13];
+  tmp_share->connect_timeouts = &tmp_long[14];
+  tmp_long[13] = -1;
+  tmp_share->net_read_timeouts = &tmp_long[15];
+  tmp_long[14] = -1;
+  tmp_share->net_write_timeouts = &tmp_long[16];
+  tmp_long[15] = -1;
+  tmp_share->access_balances = &tmp_long[17];
+  tmp_share->bka_table_name_types = &tmp_long[18];
+  tmp_share->strict_group_bys = &tmp_long[19];
+  tmp_share->monitoring_limit = &tmp_longlong[0];
+  tmp_share->monitoring_sid = &tmp_longlong[1];
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  tmp_share->monitoring_bg_interval = &tmp_longlong[2];
+#endif
+  tmp_share->server_names_lengths = &tmp_connect_info_length[0];
+  tmp_share->tgt_table_names_lengths = &tmp_connect_info_length[1];
+  tmp_share->tgt_dbs_lengths = &tmp_connect_info_length[2];
+  tmp_share->tgt_hosts_lengths = &tmp_connect_info_length[3];
+  tmp_share->tgt_usernames_lengths = &tmp_connect_info_length[4];
+  tmp_share->tgt_passwords_lengths = &tmp_connect_info_length[5];
+  tmp_share->tgt_sockets_lengths = &tmp_connect_info_length[6];
+  tmp_share->tgt_wrappers_lengths = &tmp_connect_info_length[7];
+  tmp_share->tgt_ssl_cas_lengths = &tmp_connect_info_length[8];
+  tmp_share->tgt_ssl_capaths_lengths = &tmp_connect_info_length[9];
+  tmp_share->tgt_ssl_certs_lengths = &tmp_connect_info_length[10];
+  tmp_share->tgt_ssl_ciphers_lengths = &tmp_connect_info_length[11];
+  tmp_share->tgt_ssl_keys_lengths = &tmp_connect_info_length[12];
+  tmp_share->tgt_default_files_lengths = &tmp_connect_info_length[13];
+  tmp_share->tgt_default_groups_lengths = &tmp_connect_info_length[14];
+  tmp_share->tgt_dsns_lengths = &tmp_connect_info_length[15];
+  tmp_share->tgt_pk_names_lengths = &tmp_connect_info_length[16];
+  tmp_share->tgt_sequence_names_lengths = &tmp_connect_info_length[17];
+  tmp_share->static_link_ids_lengths = &tmp_connect_info_length[18];
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  tmp_share->hs_read_socks_lengths = &tmp_connect_info_length[19];
+  tmp_share->hs_write_socks_lengths = &tmp_connect_info_length[20];
+#endif
+  tmp_share->server_names_length = 1;
+  tmp_share->tgt_table_names_length = 1;
+  tmp_share->tgt_dbs_length = 1;
+  tmp_share->tgt_hosts_length = 1;
+  tmp_share->tgt_usernames_length = 1;
+  tmp_share->tgt_passwords_length = 1;
+  tmp_share->tgt_sockets_length = 1;
+  tmp_share->tgt_wrappers_length = 1;
+  tmp_share->tgt_ssl_cas_length = 1;
+  tmp_share->tgt_ssl_capaths_length = 1;
+  tmp_share->tgt_ssl_certs_length = 1;
+  tmp_share->tgt_ssl_ciphers_length = 1;
+  tmp_share->tgt_ssl_keys_length = 1;
+  tmp_share->tgt_default_files_length = 1;
+  tmp_share->tgt_default_groups_length = 1;
+  tmp_share->tgt_dsns_length = 1;
+  tmp_share->tgt_pk_names_length = 1;
+  tmp_share->tgt_sequence_names_length = 1;
+  tmp_share->static_link_ids_length = 1;
+  tmp_share->tgt_ports_length = 1;
+  tmp_share->tgt_ssl_vscs_length = 1;
+  tmp_share->link_statuses_length = 1;
+  tmp_share->monitoring_binlog_pos_at_failing_length = 1;
+  tmp_share->monitoring_flag_length = 1;
+  tmp_share->monitoring_kind_length = 1;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  tmp_share->monitoring_bg_flag_length = 1;
+  tmp_share->monitoring_bg_kind_length = 1;
+#endif
+  tmp_share->monitoring_limit_length = 1;
+  tmp_share->monitoring_sid_length = 1;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  tmp_share->monitoring_bg_interval_length = 1;
+#endif
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  tmp_share->hs_read_socks_length = 1;
+  tmp_share->hs_write_socks_length = 1;
+  tmp_share->use_hs_reads_length = 1;
+  tmp_share->use_hs_writes_length = 1;
+  tmp_share->hs_read_ports_length = 1;
+  tmp_share->hs_write_ports_length = 1;
+  tmp_share->hs_write_to_reads_length = 1;
+#endif
+  tmp_share->use_handlers_length = 1;
+  tmp_share->connect_timeouts_length = 1;
+  tmp_share->net_read_timeouts_length = 1;
+  tmp_share->net_write_timeouts_length = 1;
+  tmp_share->access_balances_length = 1;
+  tmp_share->bka_table_name_types_length = 1;
+  tmp_share->strict_group_bys_length = 1;
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  tmp_share->monitoring_bg_flag[0] = -1;
+  tmp_share->monitoring_bg_kind[0] = -1;
+#endif
+  tmp_share->monitoring_binlog_pos_at_failing[0] = -1;
+  tmp_share->monitoring_flag[0] = -1;
+  tmp_share->monitoring_kind[0] = -1;
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+  tmp_share->monitoring_bg_interval[0] = -1;
+#endif
+  tmp_share->monitoring_limit[0] = -1;
+  tmp_share->monitoring_sid[0] = -1;
+  tmp_share->bka_engine = NULL;
+  tmp_share->use_dbton_count = 0;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  tmp_share->use_hs_dbton_count = 0;
+#endif
+  DBUG_VOID_RETURN;
+}
+
+int spider_create_tmp_dbton_share(
+  SPIDER_SHARE *tmp_share
+) {
+  int error_num;
+  uint dbton_id = tmp_share->use_dbton_ids[0];
+  DBUG_ENTER("spider_create_tmp_dbton_share");
+  if (!(tmp_share->dbton_share[dbton_id] =
+    spider_dbton[dbton_id].create_db_share(tmp_share)))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  if ((error_num = tmp_share->dbton_share[dbton_id]->init()))
+  {
+    delete tmp_share->dbton_share[dbton_id];
+    tmp_share->dbton_share[dbton_id] = NULL;
+    DBUG_RETURN(error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+void spider_free_tmp_dbton_share(
+  SPIDER_SHARE *tmp_share
+) {
+  uint dbton_id = tmp_share->use_dbton_ids[0];
+  DBUG_ENTER("spider_free_tmp_dbton_share");
+  if (tmp_share->dbton_share[dbton_id])
+  {
+    delete tmp_share->dbton_share[dbton_id];
+    tmp_share->dbton_share[dbton_id] = NULL;
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_create_tmp_dbton_handler(
+  ha_spider *tmp_spider
+) {
+  int error_num;
+  SPIDER_SHARE *tmp_share = tmp_spider->share;
+  uint dbton_id = tmp_share->use_dbton_ids[0];
+  DBUG_ENTER("spider_create_tmp_dbton_handler");
+  if (!(tmp_spider->dbton_handler[dbton_id] =
+    spider_dbton[dbton_id].create_db_handler(tmp_spider,
+    tmp_share->dbton_share[dbton_id])))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  if ((error_num = tmp_spider->dbton_handler[dbton_id]->init()))
+  {
+    delete tmp_spider->dbton_handler[dbton_id];
+    tmp_spider->dbton_handler[dbton_id] = NULL;
+    DBUG_RETURN(error_num);
+  }
+  DBUG_RETURN(0);
+}
+
+void spider_free_tmp_dbton_handler(
+  ha_spider *tmp_spider
+) {
+  SPIDER_SHARE *tmp_share = tmp_spider->share;
+  uint dbton_id = tmp_share->use_dbton_ids[0];
+  DBUG_ENTER("spider_create_tmp_dbton_handler");
+  if (tmp_spider->dbton_handler[dbton_id])
+  {
+    delete tmp_spider->dbton_handler[dbton_id];
+    tmp_spider->dbton_handler[dbton_id] = NULL;
+  }
+  DBUG_VOID_RETURN;
+}
+
+TABLE_LIST *spider_get_parent_table_list(
+  ha_spider *spider
+) {
+  TABLE *table = spider->get_table();
+  DBUG_ENTER("spider_get_parent_table_list");
+  DBUG_RETURN(table->pos_in_table_list);
+}
+
+List<Index_hint> *spider_get_index_hints(
+  ha_spider *spider
+  ) {
+    TABLE_LIST *table_list = spider_get_parent_table_list(spider);
+    DBUG_ENTER("spider_get_index_hint");
+    if (table_list)
+    {
+      DBUG_RETURN(table_list->index_hints);
+    }
+    DBUG_RETURN(NULL);
+}
+
+
+st_select_lex *spider_get_select_lex(
+  ha_spider *spider
+) {
+  TABLE_LIST *table_list = spider_get_parent_table_list(spider);
+  DBUG_ENTER("spider_get_select_lex");
+  if (table_list)
+  {
+    DBUG_RETURN(table_list->select_lex);
+  }
+  DBUG_RETURN(NULL);
+}
+
+void spider_get_select_limit_from_select_lex(
+  st_select_lex *select_lex,
+  longlong *select_limit,
+  longlong *offset_limit
+) {
+  DBUG_ENTER("spider_get_select_limit_from_select_lex");
+  *select_limit = 9223372036854775807LL;
+  *offset_limit = 0;
+  if (select_lex && select_lex->explicit_limit)
+  {
+    *select_limit = select_lex->select_limit ?
+      select_lex->select_limit->val_int() : 0;
+    *offset_limit = select_lex->offset_limit ?
+      select_lex->offset_limit->val_int() : 0;
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_get_select_limit(
+  ha_spider *spider,
+  st_select_lex **select_lex,
+  longlong *select_limit,
+  longlong *offset_limit
+) {
+  DBUG_ENTER("spider_get_select_limit");
+  *select_lex = spider_get_select_lex(spider);
+  spider_get_select_limit_from_select_lex(
+    *select_lex, select_limit, offset_limit);
+  DBUG_VOID_RETURN;
+}
+
+longlong spider_split_read_param(
+  ha_spider *spider
+) {
+  SPIDER_SHARE *share = spider->share;
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  THD *thd = spider->wide_handler->trx->thd;
+  st_select_lex *select_lex;
+  longlong select_limit;
+  longlong offset_limit;
+  double semi_split_read;
+  longlong split_read;
+  DBUG_ENTER("spider_split_read_param");
+  result_list->set_split_read_count = 1;
+#ifdef INFO_KIND_FORCE_LIMIT_BEGIN
+  if (spider->wide_handler->info_limit < 9223372036854775807LL)
+  {
+    DBUG_PRINT("info",("spider info_limit=%lld",
+      spider->wide_handler->info_limit));
+    longlong info_limit = spider->wide_handler->info_limit;
+    result_list->split_read_base = info_limit;
+    result_list->semi_split_read = 0;
+    result_list->first_read = info_limit;
+    result_list->second_read = info_limit;
+    result_list->semi_split_read_base = 0;
+    result_list->set_split_read = FALSE;
+    DBUG_RETURN(info_limit);
+  }
+#endif
+  if (spider->sql_kinds & SPIDER_SQL_KIND_HANDLER)
+  {
+    DBUG_RETURN(result_list->semi_split_read_base);
+  }
+  spider_get_select_limit(spider, &select_lex, &select_limit, &offset_limit);
+  DBUG_PRINT("info",("spider result_list->set_split_read=%s", result_list->set_split_read ? "TRUE" : "FALSE"));
+  if (!result_list->set_split_read)
+  {
+    int bulk_update_mode = spider_param_bulk_update_mode(thd,
+      share->bulk_update_mode);
+    DBUG_PRINT("info",("spider sql_command=%u",
+      spider->wide_handler->sql_command));
+    DBUG_PRINT("info",("spider bulk_update_mode=%d", bulk_update_mode));
+    DBUG_PRINT("info",("spider support_bulk_update_sql=%s",
+      spider->support_bulk_update_sql() ? "TRUE" : "FALSE"));
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+    bool inserting =
+      (
+#ifdef HS_HAS_SQLCOM
+        spider->wide_handler->sql_command == SQLCOM_HS_INSERT ||
+#endif
+        spider->wide_handler->sql_command == SQLCOM_INSERT ||
+        spider->wide_handler->sql_command == SQLCOM_INSERT_SELECT
+      );
+#endif
+    bool updating =
+      (
+#ifdef HS_HAS_SQLCOM
+        spider->wide_handler->sql_command == SQLCOM_HS_UPDATE ||
+#endif
+        spider->wide_handler->sql_command == SQLCOM_UPDATE ||
+        spider->wide_handler->sql_command == SQLCOM_UPDATE_MULTI
+      );
+    bool deleting =
+      (
+#ifdef HS_HAS_SQLCOM
+        spider->wide_handler->sql_command == SQLCOM_HS_DELETE ||
+#endif
+        spider->wide_handler->sql_command == SQLCOM_DELETE ||
+        spider->wide_handler->sql_command == SQLCOM_DELETE_MULTI
+      );
+    bool replacing =
+      (
+        spider->wide_handler->sql_command == SQLCOM_REPLACE ||
+        spider->wide_handler->sql_command == SQLCOM_REPLACE_SELECT
+      );
+    DBUG_PRINT("info",("spider updating=%s", updating ? "TRUE" : "FALSE"));
+    DBUG_PRINT("info",("spider deleting=%s", deleting ? "TRUE" : "FALSE"));
+    DBUG_PRINT("info",("spider replacing=%s", replacing ? "TRUE" : "FALSE"));
+    TABLE *table = spider->get_table();
+    if (
+#ifdef SPIDER_HAS_GROUP_BY_HANDLER
+      (
+        inserting &&
+        spider->use_fields
+      ) ||
+#endif
+      replacing ||
+      (
+        (
+          updating ||
+          deleting
+        ) &&
+        (
+          bulk_update_mode != 2 ||
+          !spider->support_bulk_update_sql() ||
+          (
+            updating &&
+            table->triggers &&
+#ifdef HA_CAN_FORCE_BULK_UPDATE
+            !(table->file->ha_table_flags() & HA_CAN_FORCE_BULK_UPDATE) &&
+#endif
+            table->triggers->has_triggers(TRG_EVENT_UPDATE, TRG_ACTION_AFTER)
+          ) ||
+          (
+            deleting &&
+            table->triggers &&
+#ifdef HA_CAN_FORCE_BULK_DELETE
+            !(table->file->ha_table_flags() & HA_CAN_FORCE_BULK_DELETE) &&
+#endif
+            table->triggers->has_triggers(TRG_EVENT_DELETE, TRG_ACTION_AFTER)
+          )
+        )
+      )
+    ) {
+      /* This case must select by one shot */
+      DBUG_PRINT("info",("spider cancel split read"));
+      result_list->split_read_base = 9223372036854775807LL;
+      result_list->semi_split_read = 0;
+      result_list->semi_split_read_limit = 9223372036854775807LL;
+      result_list->first_read = 9223372036854775807LL;
+      result_list->second_read = 9223372036854775807LL;
+      result_list->semi_split_read_base = 0;
+      result_list->set_split_read = TRUE;
+      DBUG_RETURN(9223372036854775807LL);
+    }
+#ifdef SPIDER_HAS_EXPLAIN_QUERY
+    Explain_query *explain = thd->lex->explain;
+    bool filesort = FALSE;
+    if (explain)
+    {
+      DBUG_PRINT("info",("spider explain=%p", explain));
+      Explain_select *explain_select = NULL;
+      if (select_lex)
+      {
+        DBUG_PRINT("info",("spider select_lex=%p", select_lex));
+        DBUG_PRINT("info",("spider select_number=%u",
+          select_lex->select_number));
+        explain_select =
+          explain->get_select(select_lex->select_number);
+      }
+      if (explain_select)
+      {
+        DBUG_PRINT("info",("spider explain_select=%p", explain_select));
+        if (explain_select->using_filesort)
+        {
+          DBUG_PRINT("info",("spider using filesort"));
+          filesort = TRUE;
+        }
+      }
+    }
+#endif
+    result_list->split_read_base =
+      spider_param_split_read(thd, share->split_read);
+#ifdef SPIDER_HAS_EXPLAIN_QUERY
+    if (filesort)
+    {
+      result_list->semi_split_read = 0;
+      result_list->semi_split_read_limit = 9223372036854775807LL;
+    } else {
+#endif
+      result_list->semi_split_read =
+        spider_param_semi_split_read(thd, share->semi_split_read);
+      result_list->semi_split_read_limit =
+        spider_param_semi_split_read_limit(thd, share->semi_split_read_limit);
+#ifdef SPIDER_HAS_EXPLAIN_QUERY
+    }
+#endif
+    result_list->first_read =
+      spider_param_first_read(thd, share->first_read);
+    result_list->second_read =
+      spider_param_second_read(thd, share->second_read);
+    result_list->semi_split_read_base = 0;
+    result_list->set_split_read = TRUE;
+  }
+  DBUG_PRINT("info",("spider result_list->semi_split_read=%f", result_list->semi_split_read));
+  DBUG_PRINT("info",("spider select_lex->explicit_limit=%d", select_lex ? select_lex->explicit_limit : 0));
+  DBUG_PRINT("info",("spider OPTION_FOUND_ROWS=%s", select_lex && (select_lex->options & OPTION_FOUND_ROWS) ? "TRUE" : "FALSE"));
+  DBUG_PRINT("info",("spider select_lex->group_list.elements=%u", select_lex ? select_lex->group_list.elements : 0));
+  DBUG_PRINT("info",("spider select_lex->with_sum_func=%s", select_lex && select_lex->with_sum_func ? "TRUE" : "FALSE"));
+  if (
+    result_list->semi_split_read > 0 &&
+    select_lex && select_lex->explicit_limit &&
+    !(select_lex->options & OPTION_FOUND_ROWS) &&
+    !select_lex->group_list.elements &&
+    !select_lex->with_sum_func
+  ) {
+    semi_split_read = result_list->semi_split_read *
+      (select_limit + offset_limit);
+    DBUG_PRINT("info",("spider semi_split_read=%f", semi_split_read));
+    if (semi_split_read >= result_list->semi_split_read_limit)
+    {
+      result_list->semi_split_read_base = result_list->semi_split_read_limit;
+      DBUG_RETURN(result_list->semi_split_read_limit);
+    } else {
+      split_read = (longlong) semi_split_read;
+      if (split_read < 0)
+      {
+        result_list->semi_split_read_base = result_list->semi_split_read_limit;
+        DBUG_RETURN(result_list->semi_split_read_limit);
+      } else if (split_read == 0)
+      {
+        result_list->semi_split_read_base = 1;
+        DBUG_RETURN(1);
+      } else {
+        result_list->semi_split_read_base = split_read;
+        DBUG_RETURN(split_read);
+      }
+    }
+  } else if (result_list->first_read > 0)
+    DBUG_RETURN(result_list->first_read);
+  DBUG_RETURN(result_list->split_read_base);
+}
+
+longlong spider_bg_split_read_param(
+  ha_spider *spider
+) {
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  DBUG_ENTER("spider_bg_split_read_param");
+  if (result_list->semi_split_read_base)
+    DBUG_RETURN(result_list->semi_split_read_base);
+  DBUG_RETURN(result_list->split_read_base);
+}
+
+void spider_first_split_read_param(
+  ha_spider *spider
+) {
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  DBUG_ENTER("spider_first_split_read_param");
+  if (result_list->semi_split_read_base)
+    result_list->split_read = result_list->semi_split_read_base;
+  else if (result_list->second_read > 0)
+    result_list->split_read = result_list->first_read;
+  else
+    result_list->split_read = result_list->split_read_base;
+  result_list->set_split_read_count = 1;
+  DBUG_VOID_RETURN;
+}
+
+void spider_next_split_read_param(
+  ha_spider *spider
+) {
+  SPIDER_RESULT_LIST *result_list = &spider->result_list;
+  DBUG_ENTER("spider_next_split_read_param");
+  if (result_list->semi_split_read_base)
+    result_list->split_read = result_list->semi_split_read_base;
+  else if (
+    result_list->set_split_read_count == 1 &&
+    result_list->second_read > 0
+  )
+    result_list->split_read = result_list->second_read;
+  else
+    result_list->split_read = result_list->split_read_base;
+  result_list->set_split_read_count++;
+  DBUG_VOID_RETURN;
+}
+
+bool spider_check_direct_order_limit(
+  ha_spider *spider
+) {
+  THD *thd = spider->wide_handler->trx->thd;
+  SPIDER_SHARE *share = spider->share;
+  st_select_lex *select_lex;
+  longlong select_limit;
+  longlong offset_limit;
+  DBUG_ENTER("spider_check_direct_order_limit");
+  if (spider_check_index_merge(spider->get_table(),
+    spider_get_select_lex(spider)))
+  {
+    DBUG_PRINT("info",("spider set use_index_merge"));
+    spider->use_index_merge = TRUE;
+  }
+  DBUG_PRINT("info",("spider SQLCOM_HA_READ=%s",
+    (spider->wide_handler->sql_command == SQLCOM_HA_READ) ? "TRUE" : "FALSE"));
+  DBUG_PRINT("info",("spider sql_kinds with SPIDER_SQL_KIND_HANDLER=%s",
+    (spider->sql_kinds & SPIDER_SQL_KIND_HANDLER) ? "TRUE" : "FALSE"));
+  DBUG_PRINT("info",("spider use_index_merge=%s",
+    spider->use_index_merge ? "TRUE" : "FALSE"));
+  DBUG_PRINT("info",("spider is_clone=%s",
+    spider->is_clone ? "TRUE" : "FALSE"));
+#ifdef HA_CAN_BULK_ACCESS
+  DBUG_PRINT("info",("spider is_bulk_access_clone=%s",
+    spider->is_bulk_access_clone ? "TRUE" : "FALSE"));
+#endif
+  if (
+    spider->wide_handler->sql_command != SQLCOM_HA_READ &&
+    !spider->use_index_merge &&
+#ifdef HA_CAN_BULK_ACCESS
+    (!spider->is_clone || spider->is_bulk_access_clone)
+#else
+    !spider->is_clone
+#endif
+  ) {
+    spider_get_select_limit(spider, &select_lex, &select_limit, &offset_limit);
+    bool first_check = TRUE;
+    DBUG_PRINT("info",("spider select_lex=%p", select_lex));
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100000
+    DBUG_PRINT("info",("spider leaf_tables.elements=%u",
+      select_lex ? select_lex->leaf_tables.elements : 0));
+#endif
+
+    if (select_lex && (select_lex->options & SELECT_DISTINCT))
+    {
+      DBUG_PRINT("info",("spider with distinct"));
+      spider->result_list.direct_distinct = TRUE;
+    }
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+    spider->result_list.direct_aggregate = TRUE;
+#endif
+    DBUG_PRINT("info",("spider select_limit=%lld", select_limit));
+    DBUG_PRINT("info",("spider offset_limit=%lld", offset_limit));
+    if (
+#if MYSQL_VERSION_ID < 50500
+      !thd->variables.engine_condition_pushdown ||
+#else
+#ifdef SPIDER_ENGINE_CONDITION_PUSHDOWN_IS_ALWAYS_ON
+#else
+      !(thd->variables.optimizer_switch &
+        OPTIMIZER_SWITCH_ENGINE_CONDITION_PUSHDOWN) ||
+#endif
+#endif
+#ifdef SPIDER_NEED_CHECK_CONDITION_AT_CHECKING_DIRECT_ORDER_LIMIT
+      !spider->condition ||
+#endif
+      !select_lex ||
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100000
+      select_lex->leaf_tables.elements != 1 ||
+#endif
+      select_lex->table_list.elements != 1
+    ) {
+      DBUG_PRINT("info",("spider first_check is FALSE"));
+      first_check = FALSE;
+      spider->result_list.direct_distinct = FALSE;
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+      spider->result_list.direct_aggregate = FALSE;
+#endif
+    } else if (spider_db_append_condition(spider, NULL, 0, TRUE))
+    {
+      DBUG_PRINT("info",("spider FALSE by condition"));
+      first_check = FALSE;
+      spider->result_list.direct_distinct = FALSE;
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+      spider->result_list.direct_aggregate = FALSE;
+#endif
+    } else if (spider->sql_kinds & SPIDER_SQL_KIND_HANDLER)
+    {
+      DBUG_PRINT("info",("spider sql_kinds with SPIDER_SQL_KIND_HANDLER"));
+      spider->result_list.direct_distinct = FALSE;
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+      spider->result_list.direct_aggregate = FALSE;
+    } else if (
+      !select_lex->group_list.elements &&
+      !select_lex->with_sum_func
+    ) {
+      DBUG_PRINT("info",("spider this SQL is not aggregate SQL"));
+      spider->result_list.direct_aggregate = FALSE;
+    } else {
+      ORDER *group;
+      for (group = (ORDER *) select_lex->group_list.first; group;
+        group = group->next)
+      {
+        if (spider->print_item_type((*group->item), NULL, NULL, 0))
+        {
+          DBUG_PRINT("info",("spider aggregate FALSE by group"));
+          spider->result_list.direct_aggregate = FALSE;
+          break;
+        }
+      }
+      JOIN *join = select_lex->join;
+      Item_sum **item_sum_ptr;
+      for (item_sum_ptr = join->sum_funcs; *item_sum_ptr; ++item_sum_ptr)
+      {
+        if (spider->print_item_type(*item_sum_ptr, NULL, NULL, 0))
+        {
+          DBUG_PRINT("info",("spider aggregate FALSE by not supported"));
+          spider->result_list.direct_aggregate = FALSE;
+          break;
+        }
+      }
+      if (!spider_all_part_in_order((ORDER *) select_lex->group_list.first,
+        spider->get_table()))
+      {
+        DBUG_PRINT("info",("spider FALSE by group condition"));
+        first_check = FALSE;
+        spider->result_list.direct_distinct = FALSE;
+      }
+#endif
+    }
+
+    longlong direct_order_limit = spider_param_direct_order_limit(thd,
+      share->direct_order_limit);
+    DBUG_PRINT("info",("spider direct_order_limit=%lld", direct_order_limit));
+    if (direct_order_limit)
+    {
+      DBUG_PRINT("info",("spider first_check=%s",
+        first_check ? "TRUE" : "FALSE"));
+      DBUG_PRINT("info",("spider (select_lex->options & OPTION_FOUND_ROWS)=%s",
+        select_lex && (select_lex->options & OPTION_FOUND_ROWS) ? "TRUE" : "FALSE"));
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+      DBUG_PRINT("info",("spider direct_aggregate=%s",
+        spider->result_list.direct_aggregate ? "TRUE" : "FALSE"));
+#endif
+      DBUG_PRINT("info",("spider select_lex->group_list.elements=%u",
+        select_lex ? select_lex->group_list.elements : 0));
+      DBUG_PRINT("info",("spider select_lex->with_sum_func=%s",
+        select_lex && select_lex->with_sum_func ? "TRUE" : "FALSE"));
+      DBUG_PRINT("info",("spider select_lex->having=%s",
+        select_lex && select_lex->having ? "TRUE" : "FALSE"));
+      DBUG_PRINT("info",("spider select_lex->order_list.elements=%u",
+        select_lex ? select_lex->order_list.elements : 0));
+      if (
+        !first_check ||
+        !select_lex->explicit_limit ||
+        (select_lex->options & OPTION_FOUND_ROWS) ||
+        (
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+          !spider->result_list.direct_aggregate &&
+#endif
+          (
+            select_lex->group_list.elements ||
+            select_lex->with_sum_func
+          )
+        ) ||
+        select_lex->having ||
+        !select_lex->order_list.elements ||
+        select_limit > direct_order_limit - offset_limit
+      ) {
+        DBUG_PRINT("info",("spider FALSE by select_lex"));
+        DBUG_RETURN(FALSE);
+      }
+      ORDER *order;
+      for (order = (ORDER *) select_lex->order_list.first; order;
+        order = order->next)
+      {
+        if (spider->print_item_type((*order->item), NULL, NULL, 0))
+        {
+          DBUG_PRINT("info",("spider FALSE by order"));
+          DBUG_RETURN(FALSE);
+        }
+      }
+      DBUG_PRINT("info",("spider TRUE"));
+      spider->result_list.internal_limit = select_limit + offset_limit;
+      spider->result_list.split_read = select_limit + offset_limit;
+      spider->wide_handler->trx->direct_order_limit_count++;
+      DBUG_RETURN(TRUE);
+    }
+  }
+  DBUG_PRINT("info",("spider FALSE by parameter"));
+  DBUG_RETURN(FALSE);
+}
+
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+bool spider_all_part_in_order(
+  ORDER *order,
+  TABLE *table
+) {
+  TABLE_LIST *parent;
+  partition_info *part_info;
+  Field **part_fields;
+  ORDER *ptr;
+  Item *item;
+  Item_field *item_field;
+  DBUG_ENTER("spider_all_part_in_order");
+  while (TRUE)
+  {
+    DBUG_PRINT("info", ("spider table_name = %s", table->s->db.str));
+    DBUG_PRINT("info",("spider part_info=%p", table->part_info));
+    if ((part_info = table->part_info))
+    {
+      for (part_fields = part_info->full_part_field_array;
+        *part_fields; ++part_fields)
+      {
+        DBUG_PRINT("info", ("spider part_field = %s",
+          SPIDER_field_name_str(*part_fields)));
+        for (ptr = order; ptr; ptr = ptr->next)
+        {
+          item = *ptr->item;
+          if (item->type() != Item::FIELD_ITEM)
+          {
+            continue;
+          }
+          item_field = (Item_field *) item;
+          Field *field = item_field->field;
+          if (!field)
+          {
+            continue;
+          }
+          DBUG_PRINT("info", ("spider field_name = %s.%s",
+            field->table->s->db.str, SPIDER_field_name_str(field)));
+          if (*part_fields == spider_field_exchange(table->file, field))
+          {
+            break;
+          }
+        }
+        if (!ptr)
+        {
+          DBUG_RETURN(FALSE);
+        }
+      }
+    }
+    if (!(parent = table->pos_in_table_list->parent_l))
+    {
+      break;
+    }
+    table = parent->table;
+  }
+  DBUG_RETURN(TRUE);
+}
+
+Field *spider_field_exchange(
+  handler *handler,
+  Field *field
+) {
+  DBUG_ENTER("spider_field_exchange");
+#ifdef HA_CAN_BULK_ACCESS
+  if (handler->is_bulk_access_clone)
+  {
+    handler = handler->pt_clone_source_handler;
+  }
+#endif
+  DBUG_PRINT("info",("spider in field=%p", field));
+  DBUG_PRINT("info",("spider in field->table=%p", field->table));
+    DBUG_PRINT("info",("spider table=%p", handler->get_table()));
+    if (field->table != handler->get_table())
+      DBUG_RETURN(NULL);
+  DBUG_PRINT("info",("spider out field=%p", field));
+  DBUG_RETURN(field);
+}
+#endif
+
+int spider_set_direct_limit_offset(
+  ha_spider *spider
+) {
+#ifndef SPIDER_ENGINE_CONDITION_PUSHDOWN_IS_ALWAYS_ON
+  THD *thd = spider->wide_handler->trx->thd;
+#endif
+  st_select_lex *select_lex;
+  longlong select_limit;
+  longlong offset_limit;
+  TABLE_LIST *table_list;
+  DBUG_ENTER("spider_set_direct_limit_offset");
+
+  if (spider->result_list.direct_limit_offset)
+    DBUG_RETURN(TRUE);
+
+  if (
+    spider->partition_handler_share &&
+    !spider->pt_handler_share_owner
+  ) {
+    if (spider->partition_handler_share->owner->
+      result_list.direct_limit_offset == TRUE)
+    {
+      spider->result_list.direct_limit_offset = TRUE;
+      DBUG_RETURN(TRUE);
+    } else {
+      DBUG_RETURN(FALSE);
+    }
+  }
+
+  if (
+    spider->wide_handler->sql_command != SQLCOM_SELECT ||
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+    spider->result_list.direct_aggregate ||
+#endif
+    spider->result_list.direct_order_limit ||
+    spider->prev_index_rnd_init != SPD_RND    // must be RND_INIT and not be INDEX_INIT
+  )
+    DBUG_RETURN(FALSE);
+
+  spider_get_select_limit(spider, &select_lex, &select_limit, &offset_limit);
+
+  // limit and offset is non-zero
+  if (!(select_limit && offset_limit))
+    DBUG_RETURN(FALSE);
+
+  // more than one table
+  if (
+    !select_lex ||
+    select_lex->table_list.elements != 1
+  )
+    DBUG_RETURN(FALSE);
+
+  table_list = (TABLE_LIST *) select_lex->table_list.first;
+  if (table_list->table->file->partition_ht() != spider_hton_ptr)
+  {
+    DBUG_PRINT("info",("spider ht1=%u ht2=%u",
+      table_list->table->file->partition_ht()->slot,
+      spider_hton_ptr->slot
+    ));
+    DBUG_RETURN(FALSE);
+  }
+
+  // contain where
+  if (
+#if MYSQL_VERSION_ID < 50500
+    !thd->variables.engine_condition_pushdown ||
+#else
+#ifdef SPIDER_ENGINE_CONDITION_PUSHDOWN_IS_ALWAYS_ON
+#else
+    !(thd->variables.optimizer_switch &
+      OPTIMIZER_SWITCH_ENGINE_CONDITION_PUSHDOWN) ||
+#endif
+#endif
+    // conditions is null may be no where condition in rand_init
+    spider->wide_handler->condition
+  )
+    DBUG_RETURN(FALSE);
+
+  // ignore condition like 1=1
+#ifdef SPIDER_has_Item_with_subquery
+  if (select_lex->where && select_lex->where->with_subquery())
+#else
+  if (select_lex->where && select_lex->where->with_subselect)
+#endif
+    DBUG_RETURN(FALSE);
+
+  if (
+    select_lex->group_list.elements ||
+    select_lex->with_sum_func ||
+    select_lex->having ||
+    select_lex->order_list.elements
+  )
+    DBUG_RETURN(FALSE);
+
+  // must not be derived table
+  if (SPIDER_get_linkage(select_lex) == DERIVED_TABLE_TYPE)
+    DBUG_RETURN(FALSE);
+
+  spider->direct_select_offset = offset_limit;
+  spider->direct_current_offset = offset_limit;
+  spider->direct_select_limit = select_limit;
+  spider->result_list.direct_limit_offset = TRUE;
+  DBUG_RETURN(TRUE);
+}
+
+
+bool spider_check_index_merge(
+  TABLE *table,
+  st_select_lex *select_lex
+) {
+  uint roop_count;
+  JOIN *join;
+  DBUG_ENTER("spider_check_index_merge");
+  if (!select_lex)
+  {
+    DBUG_PRINT("info",("spider select_lex is null"));
+    DBUG_RETURN(FALSE);
+  }
+  join = select_lex->join;
+  if (!join)
+  {
+    DBUG_PRINT("info",("spider join is null"));
+    DBUG_RETURN(FALSE);
+  }
+  if (!join->join_tab)
+  {
+    DBUG_PRINT("info",("spider join->join_tab is null"));
+    DBUG_RETURN(FALSE);
+  }
+  for (roop_count = 0; roop_count < spider_join_table_count(join); ++roop_count)
+  {
+    JOIN_TAB *join_tab = &join->join_tab[roop_count];
+    if (join_tab->table == table)
+    {
+      DBUG_PRINT("info",("spider join_tab->type=%u", join_tab->type));
+      if (
+#ifdef SPIDER_HAS_JT_HASH_INDEX_MERGE
+        join_tab->type == JT_HASH_INDEX_MERGE ||
+#endif
+        join_tab->type == JT_INDEX_MERGE
+      ) {
+        DBUG_RETURN(TRUE);
+      }
+/*
+      DBUG_PRINT("info",("spider join_tab->quick->get_type()=%u",
+        join_tab->quick ? join_tab->quick->get_type() : 0));
+      if (
+        join_tab->quick &&
+        join_tab->quick->get_type() == QUICK_SELECT_I::QS_TYPE_INDEX_MERGE
+      ) {
+        DBUG_RETURN(TRUE);
+      }
+*/
+      DBUG_PRINT("info",("spider join_tab->select->quick->get_type()=%u",
+        join_tab->select && join_tab->select->quick ? join_tab->select->quick->get_type() : 0));
+      if (
+        join_tab->select &&
+        join_tab->select->quick &&
+        join_tab->select->quick->get_type() == QUICK_SELECT_I::QS_TYPE_INDEX_MERGE
+      ) {
+        DBUG_RETURN(TRUE);
+      }
+      break;
+    }
+  }
+  DBUG_RETURN(FALSE);
+}
+
+int spider_compare_for_sort(
+  SPIDER_SORT *a,
+  SPIDER_SORT *b
+) {
+  DBUG_ENTER("spider_compare_for_sort");
+  if (a->sort > b->sort)
+    DBUG_RETURN(-1);
+  if (a->sort < b->sort)
+    DBUG_RETURN(1);
+  DBUG_RETURN(0);
+}
+
+ulong spider_calc_for_sort(
+  uint count,
+  ...
+) {
+  ulong sort = 0;
+  va_list args;
+  va_start(args, count);
+  DBUG_ENTER("spider_calc_for_sort");
+  while (count--)
+  {
+    char *start = va_arg(args, char *), *str;
+    uint wild_pos = 0;
+
+    if ((str = start))
+    {
+      wild_pos = 128;
+      for (; *str; str++)
+      {
+        if (*str == spider_wild_prefix && str[1])
+          str++;
+        else if (*str == spider_wild_many || *str == spider_wild_one)
+        {
+          wild_pos = (uint) (str - start) + 1;
+          if (wild_pos > 127)
+            wild_pos = 127;
+          break;
+        }
+      }
+    }
+    sort = (sort << 8) + wild_pos;
+  }
+  va_end(args);
+  DBUG_RETURN(sort);
+}
+
+double spider_rand(
+  uint32 rand_source
+) {
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100000
+  struct my_rnd_struct rand;
+#else
+  struct rand_struct rand;
+#endif
+  DBUG_ENTER("spider_rand");
+  /* generate same as rand function for applications */
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100000
+  my_rnd_init(&rand, (uint32) (rand_source * 65537L + 55555555L),
+    (uint32) (rand_source * 268435457L));
+#else
+  randominit(&rand, (uint32) (rand_source * 65537L + 55555555L),
+    (uint32) (rand_source * 268435457L));
+#endif
+  DBUG_RETURN(my_rnd(&rand));
+}
+
+#ifdef SPIDER_HAS_DISCOVER_TABLE_STRUCTURE
+int spider_discover_table_structure_internal(
+  SPIDER_TRX *trx,
+  SPIDER_SHARE *spider_share,
+  spider_string *str
+) {
+  int error_num = 0, roop_count;
+  DBUG_ENTER("spider_discover_table_structure_internal");
+  for (roop_count = 0; roop_count < SPIDER_DBTON_SIZE; roop_count++)
+  {
+    if (spider_bit_is_set(spider_share->dbton_bitmap, roop_count))
+    {
+      if ((error_num = spider_share->dbton_share[roop_count]->
+        discover_table_structure(trx, spider_share, str)))
+      {
+        continue;
+      }
+      break;
+    }
+  }
+  DBUG_RETURN(error_num);
+}
+
+int spider_discover_table_structure(
+  handlerton *hton,
+  THD* thd,
+  TABLE_SHARE *share,
+  HA_CREATE_INFO *info
+) {
+  int error_num = HA_ERR_WRONG_COMMAND, dummy;
+  SPIDER_SHARE *spider_share;
+  const char *table_name = share->path.str;
+  uint table_name_length = (uint) strlen(table_name);
+  SPIDER_TRX *trx;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  partition_info *part_info = thd->work_part_info;
+#endif
+  SPIDER_Open_tables_backup open_tables_backup;
+  TABLE *table_tables;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  uint str_len;
+#endif
+  char buf[MAX_FIELD_WIDTH];
+  spider_string str(buf, sizeof(buf), system_charset_info);
+  DBUG_ENTER("spider_discover_table_structure");
+  str.init_calc_mem(229);
+  str.length(0);
+  if (str.reserve(
+    SPIDER_SQL_CREATE_TABLE_LEN + share->db.length +
+    SPIDER_SQL_DOT_LEN + share->table_name.length +
+    /* SPIDER_SQL_LCL_NAME_QUOTE_LEN */ 4 + SPIDER_SQL_OPEN_PAREN_LEN
+  )) {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str.q_append(SPIDER_SQL_CREATE_TABLE_STR, SPIDER_SQL_CREATE_TABLE_LEN);
+  str.q_append(SPIDER_SQL_LCL_NAME_QUOTE_STR, SPIDER_SQL_LCL_NAME_QUOTE_LEN);
+  str.q_append(share->db.str, share->db.length);
+  str.q_append(SPIDER_SQL_LCL_NAME_QUOTE_STR, SPIDER_SQL_LCL_NAME_QUOTE_LEN);
+  str.q_append(SPIDER_SQL_DOT_STR, SPIDER_SQL_DOT_LEN);
+  str.q_append(SPIDER_SQL_LCL_NAME_QUOTE_STR, SPIDER_SQL_LCL_NAME_QUOTE_LEN);
+  str.q_append(share->table_name.str, share->table_name.length);
+  str.q_append(SPIDER_SQL_LCL_NAME_QUOTE_STR, SPIDER_SQL_LCL_NAME_QUOTE_LEN);
+  str.q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  str_len = str.length();
+#endif
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  my_hash_value_type hash_value = my_calc_hash(&spider_open_tables,
+    (uchar*) table_name, table_name_length);
+#endif
+  if (!(trx = spider_get_trx(thd, TRUE, &error_num)))
+  {
+    DBUG_PRINT("info",("spider spider_get_trx error"));
+    my_error(error_num, MYF(0));
+    DBUG_RETURN(error_num);
+  }
+  share->table_charset = info->default_table_charset;
+  share->comment = info->comment;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  if (!part_info)
+  {
+#endif
+    if (!(spider_share = spider_create_share(table_name, share,
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+      NULL,
+#endif
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+      hash_value,
+#endif
+      &error_num
+    ))) {
+      DBUG_RETURN(error_num);
+    }
+
+    error_num = spider_discover_table_structure_internal(trx, spider_share, &str);
+
+    if (!error_num)
+    {
+      if (
+        (table_tables = spider_open_sys_table(
+          thd, SPIDER_SYS_TABLES_TABLE_NAME_STR,
+          SPIDER_SYS_TABLES_TABLE_NAME_LEN, TRUE, &open_tables_backup, FALSE,
+          &error_num))
+      ) {
+#ifdef SPIDER_SUPPORT_CREATE_OR_REPLACE_TABLE
+        if (thd->lex->create_info.or_replace())
+        {
+          error_num = spider_delete_tables(table_tables,
+            spider_share->table_name, &dummy);
+        }
+        if (!error_num)
+        {
+#endif
+          error_num = spider_insert_tables(table_tables, spider_share);
+#ifdef SPIDER_SUPPORT_CREATE_OR_REPLACE_TABLE
+        }
+#endif
+        spider_close_sys_table(thd, table_tables,
+          &open_tables_backup, FALSE);
+      }
+    }
+
+    spider_free_share_resource_only(spider_share);
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  } else {
+    char tmp_name[FN_REFLEN + 1];
+    List_iterator<partition_element> part_it(part_info->partitions);
+    List_iterator<partition_element> part_it2(part_info->partitions);
+    partition_element *part_elem, *sub_elem;
+    while ((part_elem = part_it++))
+    {
+      if ((part_elem)->subpartitions.elements)
+      {
+        List_iterator<partition_element> sub_it((part_elem)->subpartitions);
+        while ((sub_elem = sub_it++))
+        {
+          str.length(str_len);
+          if ((error_num = SPIDER_create_subpartition_name(
+            tmp_name, FN_REFLEN + 1, table_name,
+            (part_elem)->partition_name, (sub_elem)->partition_name,
+            NORMAL_PART_NAME)))
+          {
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          }
+          DBUG_PRINT("info",("spider tmp_name=%s", tmp_name));
+          if (!(spider_share = spider_create_share(tmp_name, share,
+            part_info,
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+            hash_value,
+#endif
+            &error_num
+          ))) {
+            DBUG_RETURN(error_num);
+          }
+
+          error_num = spider_discover_table_structure_internal(
+            trx, spider_share, &str);
+
+          spider_free_share_resource_only(spider_share);
+          if (!error_num)
+            break;
+        }
+        if (!error_num)
+          break;
+      } else {
+        str.length(str_len);
+        if ((error_num = SPIDER_create_partition_name(
+          tmp_name, FN_REFLEN + 1, table_name,
+          (part_elem)->partition_name, NORMAL_PART_NAME, TRUE)))
+        {
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        DBUG_PRINT("info",("spider tmp_name=%s", tmp_name));
+        if (!(spider_share = spider_create_share(tmp_name, share,
+          part_info,
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+          hash_value,
+#endif
+          &error_num
+        ))) {
+          DBUG_RETURN(error_num);
+        }
+
+        error_num = spider_discover_table_structure_internal(
+          trx, spider_share, &str);
+
+        spider_free_share_resource_only(spider_share);
+        if (!error_num)
+          break;
+      }
+    }
+    if (!error_num)
+    {
+      if (
+        !(table_tables = spider_open_sys_table(
+          thd, SPIDER_SYS_TABLES_TABLE_NAME_STR,
+          SPIDER_SYS_TABLES_TABLE_NAME_LEN, TRUE, &open_tables_backup, FALSE,
+          &error_num))
+      ) {
+        DBUG_RETURN(error_num);
+      }
+      while ((part_elem = part_it2++))
+      {
+        if ((part_elem)->subpartitions.elements)
+        {
+          List_iterator<partition_element> sub_it((part_elem)->subpartitions);
+          while ((sub_elem = sub_it++))
+          {
+            if ((error_num = SPIDER_create_subpartition_name(
+              tmp_name, FN_REFLEN + 1, table_name,
+              (part_elem)->partition_name, (sub_elem)->partition_name,
+              NORMAL_PART_NAME)))
+            {
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            }
+            DBUG_PRINT("info",("spider tmp_name=%s", tmp_name));
+            if (!(spider_share = spider_create_share(tmp_name, share,
+              part_info,
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+              hash_value,
+#endif
+              &error_num
+            ))) {
+              DBUG_RETURN(error_num);
+            }
+
+#ifdef SPIDER_SUPPORT_CREATE_OR_REPLACE_TABLE
+            if (thd->lex->create_info.or_replace())
+            {
+              error_num = spider_delete_tables(table_tables,
+                spider_share->table_name, &dummy);
+            }
+            if (!error_num)
+            {
+#endif
+              error_num = spider_insert_tables(table_tables, spider_share);
+#ifdef SPIDER_SUPPORT_CREATE_OR_REPLACE_TABLE
+            }
+#endif
+
+            spider_free_share_resource_only(spider_share);
+            if (error_num)
+              break;
+          }
+          if (error_num)
+            break;
+        } else {
+          if ((error_num = SPIDER_create_partition_name(
+            tmp_name, FN_REFLEN + 1, table_name,
+            (part_elem)->partition_name, NORMAL_PART_NAME, TRUE)))
+          {
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          }
+          DBUG_PRINT("info",("spider tmp_name=%s", tmp_name));
+          if (!(spider_share = spider_create_share(tmp_name, share,
+            part_info,
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+            hash_value,
+#endif
+            &error_num
+          ))) {
+            DBUG_RETURN(error_num);
+          }
+
+#ifdef SPIDER_SUPPORT_CREATE_OR_REPLACE_TABLE
+          if (thd->lex->create_info.or_replace())
+          {
+            error_num = spider_delete_tables(table_tables,
+              spider_share->table_name, &dummy);
+          }
+          if (!error_num)
+          {
+#endif
+            error_num = spider_insert_tables(table_tables, spider_share);
+#ifdef SPIDER_SUPPORT_CREATE_OR_REPLACE_TABLE
+          }
+#endif
+
+          spider_free_share_resource_only(spider_share);
+          if (error_num)
+            break;
+        }
+      }
+      spider_close_sys_table(thd, table_tables,
+        &open_tables_backup, FALSE);
+    }
+  }
+#endif
+
+  if (!error_num)
+    thd->clear_error();
+  else
+    DBUG_RETURN(error_num);
+
+  str.length(str.length() - SPIDER_SQL_COMMA_LEN);
+  CHARSET_INFO *table_charset;
+  if (share->table_charset)
+  {
+    table_charset = share->table_charset;
+  } else {
+    table_charset = system_charset_info;
+  }
+  uint csnamelen = strlen(table_charset->csname);
+  uint collatelen = strlen(table_charset->name);
+  if (str.reserve(SPIDER_SQL_CLOSE_PAREN_LEN + SPIDER_SQL_DEFAULT_CHARSET_LEN +
+    csnamelen + SPIDER_SQL_COLLATE_LEN + collatelen +
+    SPIDER_SQL_CONNECTION_LEN + SPIDER_SQL_VALUE_QUOTE_LEN +
+    (share->comment.length * 2)
+  )) {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str.q_append(SPIDER_SQL_CLOSE_PAREN_STR, SPIDER_SQL_CLOSE_PAREN_LEN);
+  str.q_append(SPIDER_SQL_DEFAULT_CHARSET_STR, SPIDER_SQL_DEFAULT_CHARSET_LEN);
+  str.q_append(table_charset->csname, csnamelen);
+  str.q_append(SPIDER_SQL_COLLATE_STR, SPIDER_SQL_COLLATE_LEN);
+  str.q_append(table_charset->name, collatelen);
+  str.q_append(SPIDER_SQL_COMMENT_STR, SPIDER_SQL_COMMENT_LEN);
+  str.q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+  str.append_escape_string(share->comment.str, share->comment.length);
+  if (str.reserve(SPIDER_SQL_CONNECTION_LEN +
+    (SPIDER_SQL_VALUE_QUOTE_LEN * 2) +
+    (share->connect_string.length * 2)))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str.q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+  str.q_append(SPIDER_SQL_CONNECTION_STR, SPIDER_SQL_CONNECTION_LEN);
+  str.q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+  str.append_escape_string(share->connect_string.str,
+    share->connect_string.length);
+  if (str.reserve(SPIDER_SQL_VALUE_QUOTE_LEN))
+  {
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  }
+  str.q_append(SPIDER_SQL_VALUE_QUOTE_STR, SPIDER_SQL_VALUE_QUOTE_LEN);
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  DBUG_PRINT("info",("spider part_info=%p", part_info));
+  if (part_info)
+  {
+    uint part_syntax_len;
+    char *part_syntax;
+    List_iterator<partition_element> part_it(part_info->partitions);
+    partition_element *part_elem, *sub_elem;
+    while ((part_elem = part_it++))
+    {
+      part_elem->engine_type = hton;
+      if ((part_elem)->subpartitions.elements)
+      {
+        List_iterator<partition_element> sub_it((part_elem)->subpartitions);
+        while ((sub_elem = sub_it++))
+        {
+          sub_elem->engine_type = hton;
+        }
+      }
+    }
+    if (part_info->fix_parser_data(thd))
+    {
+      DBUG_RETURN(ER_SPIDER_UNKNOWN_NUM);
+    }
+    if (!(part_syntax = SPIDER_generate_partition_syntax(thd, part_info,
+      &part_syntax_len, FALSE, TRUE, info, NULL, NULL)))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    if (str.reserve(part_syntax_len))
+    {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    str.q_append(part_syntax, part_syntax_len);
+    SPIDER_free_part_syntax(part_syntax, MYF(0));
+  }
+#endif
+  DBUG_PRINT("info",("spider str=%s", str.c_ptr_safe()));
+
+  error_num = share->init_from_sql_statement_string(thd, TRUE, str.ptr(),
+    str.length());
+  DBUG_RETURN(error_num);
+}
+#endif
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+int spider_create_spider_object_for_share(
+  SPIDER_TRX *trx,
+  SPIDER_SHARE *share,
+  ha_spider **spider
+) {
+  int error_num, roop_count, *need_mons;
+  SPIDER_CONN **conns;
+  uint *conn_link_idx;
+  uchar *conn_can_fo;
+  char **conn_keys;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  char **hs_r_conn_keys;
+  char **hs_w_conn_keys;
+#endif
+  spider_db_handler **dbton_hdl;
+  SPIDER_WIDE_HANDLER *wide_handler;
+  DBUG_ENTER("spider_create_spider_object_for_share");
+  DBUG_PRINT("info",("spider trx=%p", trx));
+  DBUG_PRINT("info",("spider share=%p", share));
+  DBUG_PRINT("info",("spider spider_ptr=%p", spider));
+  DBUG_PRINT("info",("spider spider=%p", (*spider)));
+
+  if (*spider)
+  {
+    /* already exists */
+    DBUG_RETURN(0);
+  }
+  (*spider) = new (&share->mem_root) ha_spider();
+  if (!(*spider))
+  {
+    error_num = HA_ERR_OUT_OF_MEM;
+    goto error_spider_alloc;
+  }
+  DBUG_PRINT("info",("spider spider=%p", (*spider)));
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (!(need_mons = (int *)
+    spider_bulk_malloc(spider_current_trx, 255, MYF(MY_WME | MY_ZEROFILL),
+      &need_mons, (uint) (sizeof(int) * share->link_count),
+      &conns, (uint) (sizeof(SPIDER_CONN *) * share->link_count),
+      &conn_link_idx, (uint) (sizeof(uint) * share->link_count),
+      &conn_can_fo, (uint) (sizeof(uchar) * share->link_bitmap_size),
+      &conn_keys, (uint) (sizeof(char *) * share->link_count),
+      &hs_r_conn_keys, (uint) (sizeof(char *) * share->link_count),
+      &hs_w_conn_keys, (uint) (sizeof(char *) * share->link_count),
+      &dbton_hdl, (uint) (sizeof(spider_db_handler *) * SPIDER_DBTON_SIZE),
+      &wide_handler, (uint) sizeof(SPIDER_WIDE_HANDLER),
+      NullS))
+  )
+#else
+  if (!(need_mons = (int *)
+    spider_bulk_malloc(spider_current_trx, 255, MYF(MY_WME | MY_ZEROFILL),
+      &need_mons, (uint) (sizeof(int) * share->link_count),
+      &conns, (uint) (sizeof(SPIDER_CONN *) * share->link_count),
+      &conn_link_idx, (uint) (sizeof(uint) * share->link_count),
+      &conn_can_fo, (uint) (sizeof(uchar) * share->link_bitmap_size),
+      &conn_keys, (uint) (sizeof(char *) * share->link_count),
+      &dbton_hdl, (uint) (sizeof(spider_db_handler *) * SPIDER_DBTON_SIZE),
+      &wide_handler, (uint) sizeof(SPIDER_WIDE_HANDLER),
+      NullS))
+  )
+#endif
+  {
+    error_num = HA_ERR_OUT_OF_MEM;
+    goto error_need_mons_alloc;
+  }
+  DBUG_PRINT("info",("spider need_mons=%p", need_mons));
+  (*spider)->wide_handler = wide_handler;
+  wide_handler->trx = trx;
+  (*spider)->change_table_ptr(&share->table, share->table_share);
+  (*spider)->share = share;
+  (*spider)->conns = conns;
+  (*spider)->conn_link_idx = conn_link_idx;
+  (*spider)->conn_can_fo = conn_can_fo;
+  (*spider)->need_mons = need_mons;
+  (*spider)->conn_keys_first_ptr = share->conn_keys[0];
+  (*spider)->conn_keys = conn_keys;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  (*spider)->hs_r_conn_keys = hs_r_conn_keys;
+  (*spider)->hs_w_conn_keys = hs_w_conn_keys;
+#endif
+  (*spider)->dbton_handler = dbton_hdl;
+  (*spider)->search_link_idx = -1;
+  for (roop_count = 0; roop_count < SPIDER_DBTON_SIZE; roop_count++)
+  {
+    if (
+      spider_bit_is_set(share->dbton_bitmap, roop_count) &&
+      spider_dbton[roop_count].create_db_handler
+    ) {
+      if (!(dbton_hdl[roop_count] = spider_dbton[roop_count].create_db_handler(
+        *spider, share->dbton_share[roop_count])))
+      {
+        error_num = HA_ERR_OUT_OF_MEM;
+        goto error_init_db_handler;
+      }
+      if ((error_num = dbton_hdl[roop_count]->init()))
+        goto error_init_db_handler;
+    }
+  }
+  DBUG_PRINT("info",("spider share=%p", (*spider)->share));
+  DBUG_PRINT("info",("spider need_mons=%p", (*spider)->need_mons));
+  DBUG_RETURN(0);
+
+error_init_db_handler:
+  for (; roop_count >= 0; --roop_count)
+  {
+    if (
+      spider_bit_is_set(share->dbton_bitmap, roop_count) &&
+      dbton_hdl[roop_count]
+    ) {
+      delete dbton_hdl[roop_count];
+      dbton_hdl[roop_count] = NULL;
+    }
+  }
+  spider_free(spider_current_trx, (*spider)->need_mons, MYF(0));
+error_need_mons_alloc:
+  delete (*spider);
+  (*spider) = NULL;
+error_spider_alloc:
+  DBUG_RETURN(error_num);
+}
+
+void spider_free_spider_object_for_share(
+  ha_spider **spider
+) {
+  int roop_count;
+  SPIDER_SHARE *share = (*spider)->share;
+  spider_db_handler **dbton_hdl = (*spider)->dbton_handler;
+  DBUG_ENTER("spider_free_spider_object_for_share");
+  DBUG_PRINT("info",("spider share=%p", share));
+  DBUG_PRINT("info",("spider spider_ptr=%p", spider));
+  DBUG_PRINT("info",("spider spider=%p", (*spider)));
+  for (roop_count = SPIDER_DBTON_SIZE - 1; roop_count >= 0; --roop_count)
+  {
+    if (
+      spider_bit_is_set(share->dbton_bitmap, roop_count) &&
+      dbton_hdl[roop_count]
+    ) {
+      delete dbton_hdl[roop_count];
+      dbton_hdl[roop_count] = NULL;
+    }
+  }
+  spider_free(spider_current_trx, (*spider)->need_mons, MYF(0));
+  delete (*spider);
+  (*spider) = NULL;
+  DBUG_VOID_RETURN;
+}
+
+int spider_create_sts_threads(
+  SPIDER_THREAD *spider_thread
+) {
+  int error_num;
+  DBUG_ENTER("spider_create_sts_threads");
+#if MYSQL_VERSION_ID < 50500
+  if (pthread_mutex_init(&spider_thread->mutex,
+    MY_MUTEX_INIT_FAST))
+#else
+  if (mysql_mutex_init(spd_key_mutex_bg_stss,
+    &spider_thread->mutex, MY_MUTEX_INIT_FAST))
+#endif
+  {
+    error_num = HA_ERR_OUT_OF_MEM;
+    goto error_mutex_init;
+  }
+#if MYSQL_VERSION_ID < 50500
+  if (pthread_cond_init(&spider_thread->cond, NULL))
+#else
+  if (mysql_cond_init(spd_key_cond_bg_stss,
+    &spider_thread->cond, NULL))
+#endif
+  {
+    error_num = HA_ERR_OUT_OF_MEM;
+    goto error_cond_init;
+  }
+#if MYSQL_VERSION_ID < 50500
+  if (pthread_cond_init(&spider_thread->sync_cond, NULL))
+#else
+  if (mysql_cond_init(spd_key_cond_bg_sts_syncs,
+    &spider_thread->sync_cond, NULL))
+#endif
+  {
+    error_num = HA_ERR_OUT_OF_MEM;
+    goto error_sync_cond_init;
+  }
+#if MYSQL_VERSION_ID < 50500
+  if (pthread_create(&spider_thread->thread, &spider_pt_attr,
+    spider_table_bg_sts_action, (void *) spider_thread)
+  )
+#else
+  if (mysql_thread_create(spd_key_thd_bg_stss, &spider_thread->thread,
+    &spider_pt_attr, spider_table_bg_sts_action, (void *) spider_thread)
+  )
+#endif
+  {
+    error_num = HA_ERR_OUT_OF_MEM;
+    goto error_thread_create;
+  }
+  DBUG_RETURN(0);
+
+error_thread_create:
+  pthread_cond_destroy(&spider_thread->sync_cond);
+error_sync_cond_init:
+  pthread_cond_destroy(&spider_thread->cond);
+error_cond_init:
+  pthread_mutex_destroy(&spider_thread->mutex);
+error_mutex_init:
+  DBUG_RETURN(error_num);
+}
+
+void spider_free_sts_threads(
+  SPIDER_THREAD *spider_thread
+) {
+  bool thread_killed;
+  DBUG_ENTER("spider_free_sts_threads");
+  pthread_mutex_lock(&spider_thread->mutex);
+  thread_killed = spider_thread->killed;
+  spider_thread->killed = TRUE;
+  if (!thread_killed)
+  {
+    if (spider_thread->thd_wait)
+    {
+      pthread_cond_signal(&spider_thread->cond);
+    }
+    pthread_cond_wait(&spider_thread->sync_cond, &spider_thread->mutex);
+  }
+  pthread_mutex_unlock(&spider_thread->mutex);
+  pthread_join(spider_thread->thread, NULL);
+  pthread_cond_destroy(&spider_thread->sync_cond);
+  pthread_cond_destroy(&spider_thread->cond);
+  pthread_mutex_destroy(&spider_thread->mutex);
+  spider_thread->thd_wait = FALSE;
+  spider_thread->killed = FALSE;
+  DBUG_VOID_RETURN;
+}
+
+int spider_create_crd_threads(
+  SPIDER_THREAD *spider_thread
+) {
+  int error_num;
+  DBUG_ENTER("spider_create_crd_threads");
+#if MYSQL_VERSION_ID < 50500
+  if (pthread_mutex_init(&spider_thread->mutex,
+    MY_MUTEX_INIT_FAST))
+#else
+  if (mysql_mutex_init(spd_key_mutex_bg_crds,
+    &spider_thread->mutex, MY_MUTEX_INIT_FAST))
+#endif
+  {
+    error_num = HA_ERR_OUT_OF_MEM;
+    goto error_mutex_init;
+  }
+#if MYSQL_VERSION_ID < 50500
+  if (pthread_cond_init(&spider_thread->cond, NULL))
+#else
+  if (mysql_cond_init(spd_key_cond_bg_crds,
+    &spider_thread->cond, NULL))
+#endif
+  {
+    error_num = HA_ERR_OUT_OF_MEM;
+    goto error_cond_init;
+  }
+#if MYSQL_VERSION_ID < 50500
+  if (pthread_cond_init(&spider_thread->sync_cond, NULL))
+#else
+  if (mysql_cond_init(spd_key_cond_bg_crd_syncs,
+    &spider_thread->sync_cond, NULL))
+#endif
+  {
+    error_num = HA_ERR_OUT_OF_MEM;
+    goto error_sync_cond_init;
+  }
+#if MYSQL_VERSION_ID < 50500
+  if (pthread_create(&spider_thread->thread, &spider_pt_attr,
+    spider_table_bg_crd_action, (void *) spider_thread)
+  )
+#else
+  if (mysql_thread_create(spd_key_thd_bg_crds, &spider_thread->thread,
+    &spider_pt_attr, spider_table_bg_crd_action, (void *) spider_thread)
+  )
+#endif
+  {
+    error_num = HA_ERR_OUT_OF_MEM;
+    goto error_thread_create;
+  }
+  DBUG_RETURN(0);
+
+error_thread_create:
+  pthread_cond_destroy(&spider_thread->sync_cond);
+error_sync_cond_init:
+  pthread_cond_destroy(&spider_thread->cond);
+error_cond_init:
+  pthread_mutex_destroy(&spider_thread->mutex);
+error_mutex_init:
+  DBUG_RETURN(error_num);
+}
+
+void spider_free_crd_threads(
+  SPIDER_THREAD *spider_thread
+) {
+  bool thread_killed;
+  DBUG_ENTER("spider_free_crd_threads");
+  pthread_mutex_lock(&spider_thread->mutex);
+  thread_killed = spider_thread->killed;
+  spider_thread->killed = TRUE;
+  if (!thread_killed)
+  {
+    if (spider_thread->thd_wait)
+    {
+      pthread_cond_signal(&spider_thread->cond);
+    }
+    pthread_cond_wait(&spider_thread->sync_cond, &spider_thread->mutex);
+  }
+  pthread_mutex_unlock(&spider_thread->mutex);
+  pthread_join(spider_thread->thread, NULL);
+  pthread_cond_destroy(&spider_thread->sync_cond);
+  pthread_cond_destroy(&spider_thread->cond);
+  pthread_mutex_destroy(&spider_thread->mutex);
+  spider_thread->thd_wait = FALSE;
+  spider_thread->killed = FALSE;
+  DBUG_VOID_RETURN;
+}
+
+void *spider_table_bg_sts_action(
+  void *arg
+) {
+  SPIDER_THREAD *thread = (SPIDER_THREAD *) arg;
+  SPIDER_SHARE *share;
+  SPIDER_TRX *trx;
+  int error_num;
+  ha_spider *spider;
+  SPIDER_CONN **conns;
+  THD *thd;
+  my_thread_init();
+  DBUG_ENTER("spider_table_bg_sts_action");
+  /* init start */
+  pthread_mutex_lock(&thread->mutex);
+  if (!(thd = spider_create_sys_thd(thread)))
+  {
+    thread->thd_wait = FALSE;
+    thread->killed = FALSE;
+    pthread_mutex_unlock(&thread->mutex);
+    my_thread_end();
+    DBUG_RETURN(NULL);
+  }
+  SPIDER_set_next_thread_id(thd);
+#ifdef HAVE_PSI_INTERFACE
+  mysql_thread_set_psi_id(thd->thread_id);
+#endif
+  thd_proc_info(thd, "Spider table background statistics action handler");
+  if (!(trx = spider_get_trx(NULL, FALSE, &error_num)))
+  {
+    spider_destroy_sys_thd(thd);
+    thread->thd_wait = FALSE;
+    thread->killed = FALSE;
+    pthread_mutex_unlock(&thread->mutex);
+#if !defined(MYSQL_DYNAMIC_PLUGIN) || !defined(_WIN32)
+    set_current_thd(nullptr);
+#endif
+    my_thread_end();
+    DBUG_RETURN(NULL);
+  }
+  trx->thd = thd;
+  /* init end */
+
+  if (thread->init_command)
+  {
+    uint i = 0;
+    tmp_disable_binlog(thd);
+    thd->security_ctx->skip_grants();
+    thd->client_capabilities |= CLIENT_MULTI_RESULTS;
+    if (!(*spd_mysqld_server_started) && !thd->killed)
+    {
+      pthread_mutex_lock(spd_LOCK_server_started);
+      thd->mysys_var->current_cond = spd_COND_server_started;
+      thd->mysys_var->current_mutex = spd_LOCK_server_started;
+      if (!(*spd_mysqld_server_started) && !thd->killed)
+      {
+        do
+        {
+          struct timespec abstime;
+          set_timespec_nsec(abstime, 1000);
+          error_num = pthread_cond_timedwait(spd_COND_server_started,
+            spd_LOCK_server_started, &abstime);
+        } while (
+          (error_num == ETIMEDOUT || error_num == ETIME) &&
+          !(*spd_mysqld_server_started) && !thd->killed && !thread->killed
+        );
+      }
+      pthread_mutex_unlock(spd_LOCK_server_started);
+      thd->mysys_var->current_cond = &thread->cond;
+      thd->mysys_var->current_mutex = &thread->mutex;
+    }
+    while (spider_init_queries[i].length && !thd->killed && !thread->killed)
+    {
+      dispatch_command(COM_QUERY, thd, spider_init_queries[i].str,
+        (uint) spider_init_queries[i].length, FALSE, FALSE);
+      if (unlikely(thd->is_error()))
+      {
+        fprintf(stderr, "[ERROR] %s\n", spider_stmt_da_message(thd));
+        thd->clear_error();
+        break;
+      }
+      ++i;
+    }
+    thd->mysys_var->current_cond = &thread->cond;
+    thd->mysys_var->current_mutex = &thread->mutex;
+    thd->client_capabilities -= CLIENT_MULTI_RESULTS;
+    reenable_binlog(thd);
+    thread->init_command = FALSE;
+    pthread_cond_broadcast(&thread->sync_cond);
+  }
+  if (thd->killed)
+  {
+    thread->killed = TRUE;
+  }
+  if (thd->killed)
+  {
+    thread->killed = TRUE;
+  }
+
+  while (TRUE)
+  {
+    DBUG_PRINT("info",("spider bg sts loop start"));
+    if (thread->killed)
+    {
+      DBUG_PRINT("info",("spider bg sts kill start"));
+      trx->thd = NULL;
+      spider_free_trx(trx, TRUE);
+      spider_destroy_sys_thd(thd);
+      pthread_cond_signal(&thread->sync_cond);
+      pthread_mutex_unlock(&thread->mutex);
+#if !defined(MYSQL_DYNAMIC_PLUGIN) || !defined(_WIN32)
+      set_current_thd(nullptr);
+#endif
+      my_thread_end();
+      DBUG_RETURN(NULL);
+    }
+    if (!thread->queue_first)
+    {
+      DBUG_PRINT("info",("spider bg sts has no job"));
+      thread->thd_wait = TRUE;
+      pthread_cond_wait(&thread->cond, &thread->mutex);
+      thread->thd_wait = FALSE;
+      if (thd->killed)
+        thread->killed = TRUE;
+      continue;
+    }
+    share = (SPIDER_SHARE *) thread->queue_first;
+    share->sts_working = TRUE;
+    pthread_mutex_unlock(&thread->mutex);
+
+    spider = share->sts_spider;
+    conns = spider->conns;
+    if (spider->search_link_idx < 0)
+    {
+      spider->wide_handler->trx = trx;
+      spider_trx_set_link_idx_for_all(spider);
+      spider->search_link_idx = spider_conn_first_link_idx(thd,
+        share->link_statuses, share->access_balances, spider->conn_link_idx,
+        share->link_count, SPIDER_LINK_STATUS_OK);
+    }
+    if (spider->search_link_idx >= 0)
+    {
+      DBUG_PRINT("info",
+        ("spider difftime=%f",
+          difftime(share->bg_sts_try_time, share->sts_get_time)));
+      DBUG_PRINT("info",
+        ("spider bg_sts_interval=%f", share->bg_sts_interval));
+      if (difftime(share->bg_sts_try_time, share->sts_get_time) >=
+        share->bg_sts_interval)
+      {
+        if (!conns[spider->search_link_idx])
+        {
+          spider_get_conn(share, spider->search_link_idx,
+            share->conn_keys[spider->search_link_idx],
+            trx, spider, FALSE, FALSE, SPIDER_CONN_KIND_MYSQL,
+            &error_num);
+          if (conns[spider->search_link_idx])
+          {
+            conns[spider->search_link_idx]->error_mode = 0;
+          } else {
+            spider->search_link_idx = -1;
+          }
+        }
+        DBUG_PRINT("info",
+          ("spider search_link_idx=%d", spider->search_link_idx));
+        if (spider->search_link_idx >= 0 && conns[spider->search_link_idx])
+        {
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+          if (spider_get_sts(share, spider->search_link_idx,
+            share->bg_sts_try_time, spider,
+            share->bg_sts_interval, share->bg_sts_mode,
+            share->bg_sts_sync,
+            2, HA_STATUS_CONST | HA_STATUS_VARIABLE))
+#else
+          if (spider_get_sts(share, spider->search_link_idx,
+            share->bg_sts_try_time, spider,
+            share->bg_sts_interval, share->bg_sts_mode,
+            2, HA_STATUS_CONST | HA_STATUS_VARIABLE))
+#endif
+          {
+            spider->search_link_idx = -1;
+          }
+        }
+      }
+    }
+    memset(spider->need_mons, 0, sizeof(int) * share->link_count);
+    pthread_mutex_lock(&thread->mutex);
+    if (thread->queue_first == thread->queue_last)
+    {
+      thread->queue_first = NULL;
+      thread->queue_last = NULL;
+    } else {
+      thread->queue_first = share->sts_next;
+      share->sts_next->sts_prev = NULL;
+      share->sts_next = NULL;
+    }
+    share->sts_working = FALSE;
+    share->sts_wait = FALSE;
+    if (thread->first_free_wait)
+    {
+      pthread_cond_signal(&thread->sync_cond);
+      pthread_cond_wait(&thread->cond, &thread->mutex);
+      if (thd->killed)
+        thread->killed = TRUE;
+    }
+  }
+}
+
+void *spider_table_bg_crd_action(
+  void *arg
+) {
+  SPIDER_THREAD *thread = (SPIDER_THREAD *) arg;
+  SPIDER_SHARE *share;
+  SPIDER_TRX *trx;
+  int error_num;
+  ha_spider *spider;
+  TABLE *table;
+  SPIDER_CONN **conns;
+  THD *thd;
+  my_thread_init();
+  DBUG_ENTER("spider_table_bg_crd_action");
+  /* init start */
+  pthread_mutex_lock(&thread->mutex);
+  if (!(thd = spider_create_sys_thd(thread)))
+  {
+    thread->thd_wait = FALSE;
+    thread->killed = FALSE;
+    pthread_mutex_unlock(&thread->mutex);
+    my_thread_end();
+    DBUG_RETURN(NULL);
+  }
+  SPIDER_set_next_thread_id(thd);
+#ifdef HAVE_PSI_INTERFACE
+  mysql_thread_set_psi_id(thd->thread_id);
+#endif
+  thd_proc_info(thd, "Spider table background cardinality action handler");
+  if (!(trx = spider_get_trx(NULL, FALSE, &error_num)))
+  {
+    spider_destroy_sys_thd(thd);
+    thread->thd_wait = FALSE;
+    thread->killed = FALSE;
+    pthread_mutex_unlock(&thread->mutex);
+#if !defined(MYSQL_DYNAMIC_PLUGIN) || !defined(_WIN32)
+    set_current_thd(nullptr);
+#endif
+    my_thread_end();
+    DBUG_RETURN(NULL);
+  }
+  trx->thd = thd;
+  /* init end */
+
+  while (TRUE)
+  {
+    DBUG_PRINT("info",("spider bg crd loop start"));
+    if (thread->killed)
+    {
+      DBUG_PRINT("info",("spider bg crd kill start"));
+      trx->thd = NULL;
+      spider_free_trx(trx, TRUE);
+      spider_destroy_sys_thd(thd);
+      pthread_cond_signal(&thread->sync_cond);
+      pthread_mutex_unlock(&thread->mutex);
+#if !defined(MYSQL_DYNAMIC_PLUGIN) || !defined(_WIN32)
+      set_current_thd(nullptr);
+#endif
+      my_thread_end();
+      DBUG_RETURN(NULL);
+    }
+    if (!thread->queue_first)
+    {
+      DBUG_PRINT("info",("spider bg crd has no job"));
+      thread->thd_wait = TRUE;
+      pthread_cond_wait(&thread->cond, &thread->mutex);
+      thread->thd_wait = FALSE;
+      if (thd->killed)
+        thread->killed = TRUE;
+      continue;
+    }
+    share = (SPIDER_SHARE *) thread->queue_first;
+    share->crd_working = TRUE;
+    pthread_mutex_unlock(&thread->mutex);
+
+    table = &share->table;
+    spider = share->crd_spider;
+    conns = spider->conns;
+    if (spider->search_link_idx < 0)
+    {
+      spider->wide_handler->trx = trx;
+      spider_trx_set_link_idx_for_all(spider);
+      spider->search_link_idx = spider_conn_first_link_idx(thd,
+        share->link_statuses, share->access_balances, spider->conn_link_idx,
+        share->link_count, SPIDER_LINK_STATUS_OK);
+    }
+    if (spider->search_link_idx >= 0)
+    {
+      DBUG_PRINT("info",
+        ("spider difftime=%f",
+          difftime(share->bg_crd_try_time, share->crd_get_time)));
+      DBUG_PRINT("info",
+        ("spider bg_crd_interval=%f", share->bg_crd_interval));
+      if (difftime(share->bg_crd_try_time, share->crd_get_time) >=
+        share->bg_crd_interval)
+      {
+        if (!conns[spider->search_link_idx])
+        {
+          spider_get_conn(share, spider->search_link_idx,
+            share->conn_keys[spider->search_link_idx],
+            trx, spider, FALSE, FALSE, SPIDER_CONN_KIND_MYSQL,
+            &error_num);
+          if (conns[spider->search_link_idx])
+          {
+            conns[spider->search_link_idx]->error_mode = 0;
+          } else {
+            spider->search_link_idx = -1;
+          }
+        }
+        DBUG_PRINT("info",
+          ("spider search_link_idx=%d", spider->search_link_idx));
+        if (spider->search_link_idx >= 0 && conns[spider->search_link_idx])
+        {
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+          if (spider_get_crd(share, spider->search_link_idx,
+            share->bg_crd_try_time, spider, table,
+            share->bg_crd_interval, share->bg_crd_mode,
+            share->bg_crd_sync,
+            2))
+#else
+          if (spider_get_crd(share, spider->search_link_idx,
+            share->bg_crd_try_time, spider, table,
+            share->bg_crd_interval, share->bg_crd_mode,
+            2))
+#endif
+          {
+            spider->search_link_idx = -1;
+          }
+        }
+      }
+    }
+    memset(spider->need_mons, 0, sizeof(int) * share->link_count);
+    pthread_mutex_lock(&thread->mutex);
+    if (thread->queue_first == thread->queue_last)
+    {
+      thread->queue_first = NULL;
+      thread->queue_last = NULL;
+    } else {
+      thread->queue_first = share->crd_next;
+      share->crd_next->crd_prev = NULL;
+      share->crd_next = NULL;
+    }
+    share->crd_working = FALSE;
+    share->crd_wait = FALSE;
+    if (thread->first_free_wait)
+    {
+      pthread_cond_signal(&thread->sync_cond);
+      pthread_cond_wait(&thread->cond, &thread->mutex);
+      if (thd->killed)
+        thread->killed = TRUE;
+    }
+  }
+}
+
+void spider_table_add_share_to_sts_thread(
+  SPIDER_SHARE *share
+) {
+  SPIDER_THREAD *spider_thread = share->sts_thread;
+  DBUG_ENTER("spider_table_add_share_to_sts_thread");
+  if (
+    !share->sts_wait &&
+    !pthread_mutex_trylock(&spider_thread->mutex)
+  ) {
+    if (!share->sts_wait)
+    {
+      if (spider_thread->queue_last)
+      {
+        DBUG_PRINT("info",("spider add to last"));
+        share->sts_prev = spider_thread->queue_last;
+        spider_thread->queue_last->sts_next = share;
+      } else {
+        spider_thread->queue_first = share;
+      }
+      spider_thread->queue_last = share;
+      share->sts_wait = TRUE;
+
+      if (spider_thread->thd_wait)
+      {
+        pthread_cond_signal(&spider_thread->cond);
+      }
+    }
+    pthread_mutex_unlock(&spider_thread->mutex);
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_table_add_share_to_crd_thread(
+  SPIDER_SHARE *share
+) {
+  SPIDER_THREAD *spider_thread = share->crd_thread;
+  DBUG_ENTER("spider_table_add_share_to_crd_thread");
+  if (
+    !share->crd_wait &&
+    !pthread_mutex_trylock(&spider_thread->mutex)
+  ) {
+    if (!share->crd_wait)
+    {
+      if (spider_thread->queue_last)
+      {
+        DBUG_PRINT("info",("spider add to last"));
+        share->crd_prev = spider_thread->queue_last;
+        spider_thread->queue_last->crd_next = share;
+      } else {
+        spider_thread->queue_first = share;
+      }
+      spider_thread->queue_last = share;
+      share->crd_wait = TRUE;
+
+      if (spider_thread->thd_wait)
+      {
+        pthread_cond_signal(&spider_thread->cond);
+      }
+    }
+    pthread_mutex_unlock(&spider_thread->mutex);
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_table_remove_share_from_sts_thread(
+  SPIDER_SHARE *share
+) {
+  SPIDER_THREAD *spider_thread = share->sts_thread;
+  DBUG_ENTER("spider_table_remove_share_from_sts_thread");
+  if (share->sts_wait)
+  {
+    pthread_mutex_lock(&spider_thread->mutex);
+    if (share->sts_wait)
+    {
+      if (share->sts_working)
+      {
+        DBUG_PRINT("info",("spider waiting bg sts start"));
+        spider_thread->first_free_wait = TRUE;
+        pthread_cond_wait(&spider_thread->sync_cond, &spider_thread->mutex);
+        spider_thread->first_free_wait = FALSE;
+        pthread_cond_signal(&spider_thread->cond);
+        DBUG_PRINT("info",("spider waiting bg sts end"));
+      }
+
+      if (share->sts_prev)
+      {
+        if (share->sts_next)
+        {
+          DBUG_PRINT("info",("spider remove middle one"));
+          share->sts_prev->sts_next = share->sts_next;
+          share->sts_next->sts_prev = share->sts_prev;
+        } else {
+          DBUG_PRINT("info",("spider remove last one"));
+          share->sts_prev->sts_next = NULL;
+          spider_thread->queue_last = share->sts_prev;
+        }
+      } else if (share->sts_next) {
+        DBUG_PRINT("info",("spider remove first one"));
+        share->sts_next->sts_prev = NULL;
+        spider_thread->queue_first = share->sts_next;
+      } else {
+        DBUG_PRINT("info",("spider empty"));
+        spider_thread->queue_first = NULL;
+        spider_thread->queue_last = NULL;
+      }
+    }
+    pthread_mutex_unlock(&spider_thread->mutex);
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_table_remove_share_from_crd_thread(
+  SPIDER_SHARE *share
+) {
+  SPIDER_THREAD *spider_thread = share->crd_thread;
+  DBUG_ENTER("spider_table_remove_share_from_crd_thread");
+  if (share->crd_wait)
+  {
+    pthread_mutex_lock(&spider_thread->mutex);
+    if (share->crd_wait)
+    {
+      if (share->crd_working)
+      {
+        DBUG_PRINT("info",("spider waiting bg crd start"));
+        spider_thread->first_free_wait = TRUE;
+        pthread_cond_wait(&spider_thread->sync_cond, &spider_thread->mutex);
+        spider_thread->first_free_wait = FALSE;
+        pthread_cond_signal(&spider_thread->cond);
+        DBUG_PRINT("info",("spider waiting bg crd end"));
+      }
+
+      if (share->crd_prev)
+      {
+        if (share->crd_next)
+        {
+          DBUG_PRINT("info",("spider remove middle one"));
+          share->crd_prev->crd_next = share->crd_next;
+          share->crd_next->crd_prev = share->crd_prev;
+        } else {
+          DBUG_PRINT("info",("spider remove last one"));
+          share->crd_prev->crd_next = NULL;
+          spider_thread->queue_last = share->crd_prev;
+        }
+      } else if (share->crd_next) {
+        DBUG_PRINT("info",("spider remove first one"));
+        share->crd_next->crd_prev = NULL;
+        spider_thread->queue_first = share->crd_next;
+      } else {
+        DBUG_PRINT("info",("spider empty"));
+        spider_thread->queue_first = NULL;
+        spider_thread->queue_last = NULL;
+      }
+    }
+    pthread_mutex_unlock(&spider_thread->mutex);
+  }
+  DBUG_VOID_RETURN;
+}
+#endif
+
+uchar *spider_duplicate_char(
+  uchar *dst,
+  uchar esc,
+  uchar *src,
+  uint src_lgt
+) {
+  uchar *ed = src + src_lgt;
+  DBUG_ENTER("spider_duplicate_char");
+  while (src < ed)
+  {
+    *dst = *src;
+    if (*src == esc)
+    {
+      ++dst;
+      *dst = esc;
+    }
+    ++dst;
+    ++src;
+  }
+  DBUG_RETURN(dst);
+}
diff --git a/storage/spider/spd_table.h b/storage/spider/spd_table.h
new file mode 100644
index 00000000..2b40fb33
--- /dev/null
+++ b/storage/spider/spd_table.h
@@ -0,0 +1,835 @@
+/* Copyright (C) 2008-2019 Kentoku Shiba
+   Copyright (C) 2019 MariaDB corp
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+/*
+  Structure used to manage Spider parameter string parsing.  Types of
+  parameters include:
+    - connection strings
+    - UDF parameters
+
+  A parameter string consists of one or more parameter definitions using
+  the following syntax:
+    <parameter title> <parameter value>
+  A comma is the separator character between multiple parameter definitions.
+  Parameter titles must not be quoted.  Parameter values must be quoted with
+  single or double quotes.
+*/
+
+typedef struct st_spider_param_string_parse
+{
+  char *start_ptr;         /* Pointer to the start of the parameter string */
+  char *end_ptr;           /* Pointer to the end   of the parameter string */
+  char *start_title_ptr;   /* Pointer to the start of the current parameter
+                              title */
+  char *end_title_ptr;     /* Pointer to the end   of the current parameter
+                              title */
+  char *start_value_ptr;   /* Pointer to the start of the current parameter
+                              value */
+  char *end_value_ptr;     /* Pointer to the end   of the current parameter
+                              value */
+  int  error_num;          /* Error code of the error message to print when
+                              an error is detected */
+  uint delim_title_len;    /* Length of the paramater title's delimiter */
+  uint delim_value_len;    /* Length of the paramater value's delimiter */
+  char delim_title;        /* Current parameter title's delimiter character */
+  char delim_value;        /* Current parameter value's delimiter character */
+
+  /**
+    Initialize the parameter string parse information.
+
+    @param  param_string      Pointer to the parameter string being parsed.
+    @param  error_code        Error code of the error message to print when
+                              an error is detected.
+  */
+
+  inline void init(char *param_string, int error_code)
+  {
+    start_ptr = param_string;
+    end_ptr = start_ptr + strlen(start_ptr);
+
+    init_param_title();
+    init_param_value();
+
+    error_num = error_code;
+  }
+
+  /**
+    Initialize the current parameter title.
+  */
+
+  inline void init_param_title()
+  {
+    start_title_ptr = end_title_ptr = NULL;
+    delim_title_len = 0;
+    delim_title = '\0';
+  }
+
+  /**
+    Save pointers to the start and end positions of the current parameter
+    title in the parameter string.  Also save the parameter title's
+    delimiter character.
+
+    @param  start_value       Pointer to the start position of the current
+                              parameter title.
+    @param  end_value         Pointer to the end   position of the current
+                              parameter title.
+  */
+
+  inline void set_param_title(char *start_title, char *end_title)
+  {
+    start_title_ptr = start_title;
+    end_title_ptr = end_title;
+
+    if (*start_title == '"' ||
+        *start_title == '\'')
+    {
+      delim_title = *start_title;
+
+      if (start_title >= start_ptr && *--start_title == '\\')
+        delim_title_len = 2;
+      else
+        delim_title_len = 1;
+    }
+  }
+
+  /**
+    Initialize the current parameter value.
+  */
+
+  inline void init_param_value()
+  {
+    start_value_ptr = end_value_ptr = NULL;
+    delim_value_len = 0;
+    delim_value = '\0';
+  }
+
+  /**
+    Save pointers to the start and end positions of the current parameter
+    value in the parameter string.  Also save the parameter value's
+    delimiter character.
+
+    @param  start_value       Pointer to the start position of the current
+                              parameter value.
+    @param  end_value         Pointer to the end   position of the current
+                              parameter value.
+  */
+
+  inline void set_param_value(char *start_value, char *end_value)
+  {
+    start_value_ptr = start_value--;
+    end_value_ptr = end_value;
+
+    if (*start_value == '"' ||
+        *start_value == '\'')
+    {
+      delim_value = *start_value;
+
+      if (*--start_value == '\\')
+        delim_value_len = 2;
+      else
+        delim_value_len = 1;
+    }
+  }
+
+  /**
+    Determine whether the current parameter in the parameter string has
+    extra parameter values.
+
+    @return   0               Current parameter value in the parameter string
+                              does not have extra parameter values.
+              <> 0            Error code indicating that the current parameter
+                              value in the parameter string has extra
+                              parameter values.
+  */
+
+  inline int has_extra_parameter_values()
+  {
+    int error_num = 0;
+    DBUG_ENTER("has_extra_parameter_values");
+
+    if (end_value_ptr)
+    {
+      /* There is a current parameter value */
+      char *end_param_ptr =  end_value_ptr;
+
+      while (end_param_ptr < end_ptr &&
+        (*end_param_ptr == ' ' || *end_param_ptr == '\r' ||
+         *end_param_ptr == '\n' || *end_param_ptr == '\t'))
+        end_param_ptr++;
+
+      if (end_param_ptr < end_ptr && *end_param_ptr != '\0')
+      {
+        /* Extra values in parameter definition */
+        error_num = print_param_error();
+      }
+    }
+
+    DBUG_RETURN(error_num);
+  }
+
+  inline int get_next_parameter_head(char *st, char **nx)
+  {
+    DBUG_ENTER("get_next_parameter_head");
+    char *sq = strchr(st, '\'');
+    char *dq = strchr(st, '"');
+    if (!sq && !dq)
+    {
+      DBUG_RETURN(print_param_error());
+    }
+
+    if (dq && (!sq || sq > dq))
+    {
+      while (1)
+      {
+        ++dq;
+        if (*dq == '\\')
+        {
+          ++dq;
+        }
+        else if (*dq == '"')
+        {
+          break;
+        }
+        else if (*dq == '\0')
+        {
+          DBUG_RETURN(print_param_error());
+        }
+      }
+      while (1)
+      {
+        ++dq;
+        if (*dq == '\0')
+        {
+          *nx = dq;
+          break;
+        }
+        else if (*dq == ',')
+        {
+          *dq = '\0';
+          *nx = dq + 1;
+          break;
+        }
+        else if (*dq != ' ' && *dq != '\r' && *dq != '\n' && *dq != '\t')
+        {
+          DBUG_RETURN(print_param_error());
+        }
+      }
+    }
+    else /* sq && (!dq || sq <= dq) */
+    {
+      while (1)
+      {
+        ++sq;
+        if (*sq == '\\')
+        {
+          ++sq;
+        }
+        else if (*sq == '\'')
+        {
+          break;
+        }
+        else if (*sq == '\0')
+        {
+          DBUG_RETURN(print_param_error());
+        }
+      }
+      while (1)
+      {
+        ++sq;
+        if (*sq == '\0')
+        {
+          *nx = sq;
+          break;
+        }
+        else if (*sq == ',')
+        {
+          *sq = '\0';
+          *nx = sq + 1;
+          break;
+        }
+        else if (*sq != ' ' && *sq != '\r' && *sq != '\n' && *sq != '\t')
+        {
+          DBUG_RETURN(print_param_error());
+        }
+      }
+    }
+    DBUG_RETURN(0);
+  }
+
+  /**
+    Restore the current parameter's input delimiter characters in the
+    parameter string.  They were NULLed during parameter parsing.
+  */
+
+  inline void restore_delims()
+  {
+    char *end = end_title_ptr - 1;
+
+    switch (delim_title_len)
+    {
+    case 2:
+      *end++ = '\\';
+      /* Fall through */
+    case 1:
+      *end = delim_title;
+    }
+
+    end = end_value_ptr - 1;
+    switch (delim_value_len)
+    {
+    case 2:
+      *end++ = '\\';
+      /* Fall through */
+    case 1:
+      *end = delim_value;
+    }
+  }
+
+  /**
+    Print a parameter string error message.
+
+    @return                   Error code.
+  */
+
+  int print_param_error();
+} SPIDER_PARAM_STRING_PARSE;
+
+uchar *spider_tbl_get_key(
+  SPIDER_SHARE *share,
+  size_t *length,
+  my_bool not_used __attribute__ ((unused))
+);
+
+uchar *spider_wide_share_get_key(
+  SPIDER_WIDE_SHARE *share,
+  size_t *length,
+  my_bool not_used __attribute__ ((unused))
+);
+
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+uchar *spider_pt_handler_share_get_key(
+  SPIDER_PARTITION_HANDLER_SHARE *share,
+  size_t *length,
+  my_bool not_used __attribute__ ((unused))
+);
+#endif
+
+uchar *spider_link_get_key(
+  SPIDER_LINK_FOR_HASH *link_for_hash,
+  size_t *length,
+  my_bool not_used __attribute__ ((unused))
+);
+
+uchar *spider_ha_get_key(
+  ha_spider *spider,
+  size_t *length,
+  my_bool not_used __attribute__ ((unused))
+);
+
+int spider_get_server(
+  SPIDER_SHARE *share,
+  int link_idx
+);
+
+int spider_free_share_alloc(
+  SPIDER_SHARE *share
+);
+
+void spider_free_tmp_share_alloc(
+  SPIDER_SHARE *share
+);
+
+char *spider_get_string_between_quote(
+  char *ptr,
+  bool alloc,
+  SPIDER_PARAM_STRING_PARSE *param_string_parse = NULL
+);
+
+int spider_create_string_list(
+  char ***string_list,
+  uint **string_length_list,
+  uint *list_length,
+  char *str,
+  uint length,
+  SPIDER_PARAM_STRING_PARSE *param_string_parse
+);
+
+int spider_create_long_list(
+  long **long_list,
+  uint *list_length,
+  char *str,
+  uint length,
+  long min_val,
+  long max_val,
+  SPIDER_PARAM_STRING_PARSE *param_string_parse
+);
+
+int spider_create_longlong_list(
+  longlong **longlong_list,
+  uint *list_length,
+  char *str,
+  uint length,
+  longlong min_val,
+  longlong max_val,
+  SPIDER_PARAM_STRING_PARSE *param_string_parse
+);
+
+int spider_increase_string_list(
+  char ***string_list,
+  uint **string_length_list,
+  uint *list_length,
+  uint *list_charlen,
+  uint link_count
+);
+
+int spider_increase_long_list(
+  long **long_list,
+  uint *list_length,
+  uint link_count
+);
+
+int spider_increase_longlong_list(
+  longlong **longlong_list,
+  uint *list_length,
+  uint link_count
+);
+
+int spider_parse_connect_info(
+  SPIDER_SHARE *share,
+  TABLE_SHARE *table_share,
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  partition_info *part_info,
+#endif
+  uint create_table
+);
+
+int spider_set_connect_info_default(
+  SPIDER_SHARE *share,
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  partition_element *part_elem,
+  partition_element *sub_elem,
+#endif
+  TABLE_SHARE *table_share
+);
+
+int spider_set_connect_info_default_db_table(
+  SPIDER_SHARE *share,
+  const char *db_name,
+  uint db_name_length,
+  const char *table_name,
+  uint table_name_length
+);
+
+int spider_set_connect_info_default_dbtable(
+  SPIDER_SHARE *share,
+  const char *dbtable_name,
+  int dbtable_name_length
+);
+
+#ifndef DBUG_OFF
+void spider_print_keys(
+  const char *key,
+  uint length
+);
+#endif
+
+int spider_create_conn_keys(
+  SPIDER_SHARE *share
+);
+
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+SPIDER_LGTM_TBLHND_SHARE *spider_get_lgtm_tblhnd_share(
+  const char *table_name,
+  uint table_name_length,
+  my_hash_value_type hash_value,
+  bool locked,
+  bool need_to_create,
+  int *error_num
+);
+#else
+SPIDER_LGTM_TBLHND_SHARE *spider_get_lgtm_tblhnd_share(
+  const char *table_name,
+  uint table_name_length,
+  bool locked,
+  bool need_to_create,
+  int *error_num
+);
+#endif
+
+void spider_free_lgtm_tblhnd_share_alloc(
+  SPIDER_LGTM_TBLHND_SHARE *lgtm_tblhnd_share,
+  bool locked
+);
+
+SPIDER_SHARE *spider_create_share(
+  const char *table_name,
+  TABLE_SHARE *table_share,
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  partition_info *part_info,
+#endif
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  my_hash_value_type hash_value,
+#endif
+  int *error_num
+);
+
+SPIDER_SHARE *spider_get_share(
+  const char *table_name,
+  TABLE *table,
+  THD *thd,
+  ha_spider *spider,
+  int *error_num
+);
+
+void spider_free_share_resource_only(
+  SPIDER_SHARE *share
+);
+
+int spider_free_share(
+  SPIDER_SHARE *share
+);
+
+void spider_update_link_status_for_share(
+  const char *table_name,
+  uint table_name_length,
+  int link_idx,
+  long link_status
+);
+
+SPIDER_WIDE_SHARE *spider_get_wide_share(
+  SPIDER_SHARE *share,
+  TABLE_SHARE *table_share,
+  int *error_num
+);
+
+int spider_free_wide_share(
+  SPIDER_WIDE_SHARE *wide_share
+);
+
+void spider_copy_sts_to_wide_share(
+  SPIDER_WIDE_SHARE *wide_share,
+  SPIDER_SHARE *share
+);
+
+void spider_copy_sts_to_share(
+  SPIDER_SHARE *share,
+  SPIDER_WIDE_SHARE *wide_share
+);
+
+void spider_copy_crd_to_wide_share(
+  SPIDER_WIDE_SHARE *wide_share,
+  SPIDER_SHARE *share,
+  int fields
+);
+
+void spider_copy_crd_to_share(
+  SPIDER_SHARE *share,
+  SPIDER_WIDE_SHARE *wide_share,
+  int fields
+);
+
+int spider_open_all_tables(
+  SPIDER_TRX *trx,
+  bool lock
+);
+
+bool spider_flush_logs(
+  handlerton *hton
+);
+
+handler* spider_create_handler(
+  handlerton *hton,
+  TABLE_SHARE *table, 
+  MEM_ROOT *mem_root
+);
+
+int spider_close_connection(
+  handlerton* hton,
+  THD* thd
+);
+
+void spider_drop_database(
+  handlerton *hton,
+  char* path
+);
+
+bool spider_show_status(
+  handlerton *hton,
+  THD *thd,
+  stat_print_fn *stat_print,
+  enum ha_stat_type stat_type
+);
+
+int spider_db_done(
+  void *p
+);
+
+int spider_panic(
+  handlerton *hton,
+  ha_panic_function type
+);
+
+int spider_db_init(
+  void *p
+);
+
+char *spider_create_table_name_string(
+  const char *table_name,
+  const char *part_name,
+  const char *sub_name
+);
+
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+void spider_get_partition_info(
+  const char *table_name,
+  uint table_name_length,
+  const TABLE_SHARE *table_share,
+  partition_info *part_info,
+  partition_element **part_elem,
+  partition_element **sub_elem
+);
+#endif
+
+int spider_get_sts(
+  SPIDER_SHARE *share,
+  int link_idx,
+  time_t tmp_time,
+  ha_spider *spider,
+  double sts_interval,
+  int sts_mode,
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  int sts_sync,
+#endif
+  int sts_sync_level,
+  uint flag
+);
+
+int spider_get_crd(
+  SPIDER_SHARE *share,
+  int link_idx,
+  time_t tmp_time,
+  ha_spider *spider,
+  TABLE *table,
+  double crd_interval,
+  int crd_mode,
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+  int crd_sync,
+#endif
+  int crd_sync_level
+);
+
+void spider_set_result_list_param(
+  ha_spider *spider
+);
+
+SPIDER_INIT_ERROR_TABLE *spider_get_init_error_table(
+  SPIDER_TRX *trx,
+  SPIDER_SHARE *share,
+  bool create
+);
+
+void spider_delete_init_error_table(
+  const char *name
+);
+
+bool spider_check_pk_update(
+  TABLE *table
+);
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+bool spider_check_hs_pk_update(
+  ha_spider *spider,
+  key_range *key
+);
+#endif
+#endif
+
+void spider_set_tmp_share_pointer(
+  SPIDER_SHARE *tmp_share,
+  char **tmp_connect_info,
+  uint *tmp_connect_info_length,
+  long *tmp_long,
+  longlong *tmp_longlong
+);
+
+int spider_create_tmp_dbton_share(
+  SPIDER_SHARE *tmp_share
+);
+
+void spider_free_tmp_dbton_share(
+  SPIDER_SHARE *tmp_share
+);
+
+int spider_create_tmp_dbton_handler(
+  ha_spider *tmp_spider
+);
+
+void spider_free_tmp_dbton_handler(
+  ha_spider *tmp_spider
+);
+
+TABLE_LIST *spider_get_parent_table_list(
+  ha_spider *spider
+);
+List<Index_hint> *spider_get_index_hints(
+  ha_spider *spider
+  );
+
+st_select_lex *spider_get_select_lex(
+  ha_spider *spider
+);
+
+void spider_get_select_limit_from_select_lex(
+  st_select_lex *select_lex,
+  longlong *select_limit,
+  longlong *offset_limit
+);
+
+void spider_get_select_limit(
+  ha_spider *spider,
+  st_select_lex **select_lex,
+  longlong *select_limit,
+  longlong *offset_limit
+);
+
+longlong spider_split_read_param(
+  ha_spider *spider
+);
+
+longlong spider_bg_split_read_param(
+  ha_spider *spider
+);
+
+void spider_first_split_read_param(
+  ha_spider *spider
+);
+
+void spider_next_split_read_param(
+  ha_spider *spider
+);
+
+bool spider_check_direct_order_limit(
+  ha_spider *spider
+);
+
+#ifdef HANDLER_HAS_DIRECT_AGGREGATE
+bool spider_all_part_in_order(
+  ORDER *order,
+  TABLE *table
+);
+
+Field *spider_field_exchange(
+  handler *handler,
+  Field *field
+);
+#endif
+
+int spider_set_direct_limit_offset(
+  ha_spider *spider
+);
+
+bool spider_check_index_merge(
+  TABLE *table,
+  st_select_lex *select_lex
+);
+
+int spider_compare_for_sort(
+  SPIDER_SORT *a,
+  SPIDER_SORT *b
+);
+
+ulong spider_calc_for_sort(
+  uint count,
+  ...
+);
+
+double spider_rand(
+  uint32 rand_source
+);
+
+#ifdef SPIDER_HAS_DISCOVER_TABLE_STRUCTURE
+int spider_discover_table_structure_internal(
+  SPIDER_TRX *trx,
+  SPIDER_SHARE *spider_share,
+  spider_string *str
+);
+
+int spider_discover_table_structure(
+  handlerton *hton,
+  THD* thd,
+  TABLE_SHARE *share,
+  HA_CREATE_INFO *info
+);
+#endif
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+int spider_create_spider_object_for_share(
+  SPIDER_TRX *trx,
+  SPIDER_SHARE *share,
+  ha_spider **spider
+);
+
+void spider_free_spider_object_for_share(
+  ha_spider **spider
+);
+
+int spider_create_sts_threads(
+  SPIDER_THREAD *spider_thread
+);
+
+void spider_free_sts_threads(
+  SPIDER_THREAD *spider_thread
+);
+
+int spider_create_crd_threads(
+  SPIDER_THREAD *spider_thread
+);
+
+void spider_free_crd_threads(
+  SPIDER_THREAD *spider_thread
+);
+
+void *spider_table_bg_sts_action(
+  void *arg
+);
+
+void *spider_table_bg_crd_action(
+  void *arg
+);
+
+void spider_table_add_share_to_sts_thread(
+  SPIDER_SHARE *share
+);
+
+void spider_table_add_share_to_crd_thread(
+  SPIDER_SHARE *share
+);
+
+void spider_table_remove_share_from_sts_thread(
+  SPIDER_SHARE *share
+);
+
+void spider_table_remove_share_from_crd_thread(
+  SPIDER_SHARE *share
+);
+#endif
+uchar *spider_duplicate_char(
+  uchar *dst,
+  uchar esc,
+  uchar *src,
+  uint src_lgt
+);
diff --git a/storage/spider/spd_trx.cc b/storage/spider/spd_trx.cc
new file mode 100644
index 00000000..0eda9d31
--- /dev/null
+++ b/storage/spider/spd_trx.cc
@@ -0,0 +1,4444 @@
+/* Copyright (C) 2008-2019 Kentoku Shiba
+   Copyright (C) 2019 MariaDB corp
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+#define MYSQL_SERVER 1
+#include <my_global.h>
+#include "mysql_version.h"
+#include "spd_environ.h"
+#if MYSQL_VERSION_ID < 50500
+#include "mysql_priv.h"
+#include <mysql/plugin.h>
+#else
+#include "sql_priv.h"
+#include "probes_mysql.h"
+#include "sql_class.h"
+#include "sql_partition.h"
+#include "records.h"
+#endif
+#include "spd_err.h"
+#include "spd_param.h"
+#include "spd_db_include.h"
+#include "spd_include.h"
+#include "spd_sys_table.h"
+#include "ha_spider.h"
+#include "spd_trx.h"
+#include "spd_db_conn.h"
+#include "spd_table.h"
+#include "spd_conn.h"
+#include "spd_ping_table.h"
+#include "spd_malloc.h"
+
+#ifdef SPIDER_XID_USES_xid_cache_iterate
+#else
+#ifdef XID_CACHE_IS_SPLITTED
+extern uint *spd_db_att_xid_cache_split_num;
+#endif
+extern pthread_mutex_t *spd_db_att_LOCK_xid_cache;
+extern HASH *spd_db_att_xid_cache;
+#endif
+extern struct charset_info_st *spd_charset_utf8mb3_bin;
+
+extern handlerton *spider_hton_ptr;
+extern SPIDER_DBTON spider_dbton[SPIDER_DBTON_SIZE];
+pthread_mutex_t spider_thread_id_mutex;
+ulonglong spider_thread_id = 1;
+
+#ifdef HAVE_PSI_INTERFACE
+extern PSI_mutex_key spd_key_mutex_udf_table;
+#endif
+
+extern HASH spider_allocated_thds;
+extern uint spider_allocated_thds_id;
+extern const char *spider_allocated_thds_func_name;
+extern const char *spider_allocated_thds_file_name;
+extern ulong spider_allocated_thds_line_no;
+extern pthread_mutex_t spider_allocated_thds_mutex;
+
+// for spider_alter_tables
+uchar *spider_alter_tbl_get_key(
+  SPIDER_ALTER_TABLE *alter_table,
+  size_t *length,
+  my_bool not_used __attribute__ ((unused))
+) {
+  DBUG_ENTER("spider_alter_tbl_get_key");
+  *length = alter_table->table_name_length;
+  DBUG_PRINT("info",("spider table_name_length=%zu", *length));
+  DBUG_PRINT("info",("spider table_name=%s", alter_table->table_name));
+  DBUG_RETURN((uchar*) alter_table->table_name);
+}
+
+// for SPIDER_TRX_HA
+uchar *spider_trx_ha_get_key(
+  SPIDER_TRX_HA *trx_ha,
+  size_t *length,
+  my_bool not_used __attribute__ ((unused))
+) {
+  DBUG_ENTER("spider_trx_ha_get_key");
+  *length = trx_ha->table_name_length;
+  DBUG_PRINT("info",("spider table_name_length=%zu", *length));
+  DBUG_PRINT("info",("spider table_name=%s", trx_ha->table_name));
+  DBUG_RETURN((uchar*) trx_ha->table_name);
+}
+
+int spider_free_trx_conn(
+  SPIDER_TRX *trx,
+  bool trx_free
+) {
+  int roop_count;
+  SPIDER_CONN *conn;
+  DBUG_ENTER("spider_free_trx_conn");
+  roop_count = 0;
+  if (
+    trx_free ||
+    spider_param_conn_recycle_mode(trx->thd) != 2
+  ) {
+    while ((conn = (SPIDER_CONN*) my_hash_element(&trx->trx_conn_hash,
+      roop_count)))
+    {
+      spider_conn_clear_queue_at_commit(conn);
+      if (conn->table_lock)
+      {
+        DBUG_ASSERT(!trx_free);
+        roop_count++;
+      } else
+        spider_free_conn_from_trx(trx, conn, FALSE, trx_free, &roop_count);
+    }
+    trx->trx_conn_adjustment++;
+  } else {
+    while ((conn = (SPIDER_CONN*) my_hash_element(&trx->trx_conn_hash,
+      roop_count)))
+    {
+      spider_conn_clear_queue_at_commit(conn);
+      if (conn->table_lock)
+      {
+        DBUG_ASSERT(!trx_free);
+      } else
+        conn->error_mode = 1;
+      roop_count++;
+    }
+  }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  roop_count = 0;
+  if (
+    trx_free ||
+    spider_param_hs_r_conn_recycle_mode(trx->thd) != 2
+  ) {
+    while ((conn = (SPIDER_CONN*) my_hash_element(&trx->trx_hs_r_conn_hash,
+      roop_count)))
+    {
+      if (conn->table_lock)
+      {
+        DBUG_ASSERT(!trx_free);
+        roop_count++;
+      } else
+        spider_free_conn_from_trx(trx, conn, FALSE, trx_free, &roop_count);
+    }
+    trx->trx_hs_r_conn_adjustment++;
+  } else {
+    while ((conn = (SPIDER_CONN*) my_hash_element(&trx->trx_hs_r_conn_hash,
+      roop_count)))
+    {
+      if (conn->table_lock)
+      {
+        DBUG_ASSERT(!trx_free);
+      } else
+        conn->error_mode = 1;
+      roop_count++;
+    }
+  }
+  roop_count = 0;
+  if (
+    trx_free ||
+    spider_param_hs_w_conn_recycle_mode(trx->thd) != 2
+  ) {
+    while ((conn = (SPIDER_CONN*) my_hash_element(&trx->trx_hs_w_conn_hash,
+      roop_count)))
+    {
+      if (conn->table_lock)
+      {
+        DBUG_ASSERT(!trx_free);
+        roop_count++;
+      } else
+        spider_free_conn_from_trx(trx, conn, FALSE, trx_free, &roop_count);
+    }
+    trx->trx_hs_w_conn_adjustment++;
+  } else {
+    while ((conn = (SPIDER_CONN*) my_hash_element(&trx->trx_hs_w_conn_hash,
+      roop_count)))
+    {
+      if (conn->table_lock)
+      {
+        DBUG_ASSERT(!trx_free);
+      } else
+        conn->error_mode = 1;
+      roop_count++;
+    }
+  }
+#endif
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  if (trx_free)
+  {
+    while ((conn = (SPIDER_CONN*) my_hash_element(
+      &trx->trx_direct_hs_r_conn_hash, 0)))
+    {
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+      my_hash_delete_with_hash_value(&trx->trx_direct_hs_r_conn_hash,
+        conn->conn_key_hash_value, (uchar*) conn);
+#else
+      my_hash_delete(&trx->trx_direct_hs_r_conn_hash, (uchar*) conn);
+#endif
+      spider_free_conn(conn);
+    }
+    while ((conn = (SPIDER_CONN*) my_hash_element(
+      &trx->trx_direct_hs_w_conn_hash, 0)))
+    {
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+      my_hash_delete_with_hash_value(&trx->trx_direct_hs_w_conn_hash,
+        conn->conn_key_hash_value, (uchar*) conn);
+#else
+      my_hash_delete(&trx->trx_direct_hs_w_conn_hash, (uchar*) conn);
+#endif
+      spider_free_conn(conn);
+    }
+  }
+#endif
+  DBUG_RETURN(0);
+}
+
+int spider_free_trx_another_conn(
+  SPIDER_TRX *trx,
+  bool lock
+) {
+  int error_num, tmp_error_num;
+  int roop_count = 0;
+  SPIDER_CONN *conn;
+  DBUG_ENTER("spider_free_trx_another_conn");
+  trx->tmp_spider->conns = &conn;
+  error_num = 0;
+  while ((conn = (SPIDER_CONN*) my_hash_element(&trx->trx_another_conn_hash,
+    roop_count)))
+  {
+    if (lock && (tmp_error_num = spider_db_unlock_tables(trx->tmp_spider, 0)))
+      error_num = tmp_error_num;
+    spider_free_conn_from_trx(trx, conn, TRUE, TRUE, &roop_count);
+  }
+  DBUG_RETURN(error_num);
+}
+
+int spider_trx_another_lock_tables(
+  SPIDER_TRX *trx
+) {
+  int error_num;
+  int roop_count = 0, need_mon = 0;
+  THD *thd = trx->thd;
+  SPIDER_CONN *conn;
+  ha_spider tmp_spider;
+  SPIDER_SHARE tmp_share;
+  SPIDER_WIDE_HANDLER tmp_wide_handler;
+  char sql_buf[MAX_FIELD_WIDTH];
+  spider_string sql_str(sql_buf, sizeof(sql_buf), system_charset_info);
+  DBUG_ENTER("spider_trx_another_lock_tables");
+  SPIDER_BACKUP_DASTATUS;
+  sql_str.init_calc_mem(188);
+  sql_str.length(0);
+  memset((void*)&tmp_spider, 0, sizeof(ha_spider));
+  memset((void*)&tmp_share, 0, sizeof(SPIDER_SHARE));
+  memset((void*)&tmp_wide_handler, 0, sizeof(SPIDER_WIDE_HANDLER));
+  tmp_spider.share = &tmp_share;
+  tmp_spider.wide_handler = &tmp_wide_handler;
+  tmp_wide_handler.trx = trx;
+  tmp_share.access_charset = system_charset_info;
+  tmp_spider.conns = &conn;
+  tmp_spider.result_list.sqls = &sql_str;
+  tmp_spider.need_mons = &need_mon;
+  while ((conn = (SPIDER_CONN*) my_hash_element(&trx->trx_another_conn_hash,
+    roop_count)))
+  {
+    if ((error_num = spider_db_lock_tables(&tmp_spider, 0)))
+    {
+      SPIDER_CONN_RESTORE_DASTATUS_AND_RESET_ERROR_NUM;
+      if (error_num)
+      {
+        DBUG_RETURN(error_num);
+      }
+    }
+    roop_count++;
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_trx_another_flush_tables(
+  SPIDER_TRX *trx
+) {
+  int error_num;
+  int roop_count = 0, need_mon = 0;
+  THD *thd = trx->thd;
+  SPIDER_CONN *conn;
+  ha_spider tmp_spider;
+  SPIDER_SHARE tmp_share;
+  long tmp_link_statuses = SPIDER_LINK_STATUS_OK;
+  DBUG_ENTER("spider_trx_another_flush_tables");
+  SPIDER_BACKUP_DASTATUS;
+  memset((void*)&tmp_spider, 0, sizeof(ha_spider));
+  tmp_share.link_count = 1;
+  tmp_share.all_link_count = 1;
+  tmp_share.link_statuses = &tmp_link_statuses;
+  tmp_share.link_statuses_length = 1;
+  tmp_spider.share = &tmp_share;
+  tmp_spider.conns = &conn;
+  tmp_spider.need_mons = &need_mon;
+  while ((conn = (SPIDER_CONN*) my_hash_element(&trx->trx_another_conn_hash,
+    roop_count)))
+  {
+    if ((error_num = spider_db_flush_tables(&tmp_spider, FALSE)))
+    {
+      SPIDER_CONN_RESTORE_DASTATUS_AND_RESET_ERROR_NUM;
+      if (error_num)
+        DBUG_RETURN(error_num);
+    }
+    roop_count++;
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_trx_all_flush_tables(
+  SPIDER_TRX *trx
+) {
+  int error_num;
+  int roop_count = 0, need_mon = 0;
+  THD *thd = trx->thd;
+  SPIDER_CONN *conn;
+  ha_spider tmp_spider;
+  SPIDER_SHARE tmp_share;
+  long tmp_link_statuses = SPIDER_LINK_STATUS_OK;
+  DBUG_ENTER("spider_trx_all_flush_tables");
+  SPIDER_BACKUP_DASTATUS;
+  memset((void*)&tmp_spider, 0, sizeof(ha_spider));
+  tmp_share.link_count = 1;
+  tmp_share.all_link_count = 1;
+  tmp_share.link_statuses = &tmp_link_statuses;
+  tmp_share.link_statuses_length = 1;
+  tmp_spider.share = &tmp_share;
+  tmp_spider.conns = &conn;
+  tmp_spider.need_mons = &need_mon;
+  while ((conn = (SPIDER_CONN*) my_hash_element(&trx->trx_conn_hash,
+    roop_count)))
+  {
+    if ((error_num = spider_db_flush_tables(&tmp_spider, TRUE)))
+    {
+      SPIDER_CONN_RESTORE_DASTATUS_AND_RESET_ERROR_NUM;
+      if (error_num)
+        DBUG_RETURN(error_num);
+    }
+    roop_count++;
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_trx_all_unlock_tables(
+  SPIDER_TRX *trx
+) {
+  int error_num;
+  int roop_count = 0;
+  THD *thd = trx->thd;
+  SPIDER_CONN *conn;
+  DBUG_ENTER("spider_trx_all_unlock_tables");
+  SPIDER_BACKUP_DASTATUS;
+  trx->tmp_spider->conns = &conn;
+  while ((conn = (SPIDER_CONN*) my_hash_element(&trx->trx_conn_hash,
+    roop_count)))
+  {
+    if ((error_num = spider_db_unlock_tables(trx->tmp_spider, 0)))
+    {
+      SPIDER_CONN_RESTORE_DASTATUS_AND_RESET_ERROR_NUM;
+      if (error_num)
+        DBUG_RETURN(error_num);
+    }
+    roop_count++;
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_trx_all_start_trx(
+  SPIDER_TRX *trx
+) {
+  int error_num, need_mon = 0;
+  int roop_count = 0;
+  THD *thd = trx->thd;
+  SPIDER_CONN *conn;
+  ha_spider tmp_spider;
+  SPIDER_WIDE_HANDLER tmp_wide_handler;
+  DBUG_ENTER("spider_trx_all_start_trx");
+  SPIDER_BACKUP_DASTATUS;
+  memset((void*)&tmp_spider, 0, sizeof(ha_spider));
+  memset(&tmp_wide_handler, 0, sizeof(SPIDER_WIDE_HANDLER));
+  tmp_spider.wide_handler = &tmp_wide_handler;
+  tmp_wide_handler.trx = trx;
+  tmp_spider.need_mons = &need_mon;
+  while ((conn = (SPIDER_CONN*) my_hash_element(&trx->trx_conn_hash,
+    roop_count)))
+  {
+    if (
+      (spider_param_sync_trx_isolation(trx->thd) &&
+        (error_num = spider_check_and_set_trx_isolation(conn, &need_mon))) ||
+      (error_num = spider_internal_start_trx_for_connection(&tmp_spider,
+        conn, 0))
+    ) {
+      SPIDER_CONN_RESTORE_DASTATUS_AND_RESET_ERROR_NUM;
+      if (error_num)
+        DBUG_RETURN(error_num);
+    }
+    roop_count++;
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_trx_all_flush_logs(
+  SPIDER_TRX *trx
+) {
+  int error_num;
+  int roop_count = 0, need_mon = 0;
+  THD *thd = trx->thd;
+  SPIDER_CONN *conn;
+  ha_spider tmp_spider;
+  SPIDER_SHARE tmp_share;
+  SPIDER_WIDE_HANDLER tmp_wide_handler;
+  long tmp_link_statuses = SPIDER_LINK_STATUS_OK;
+  uint conn_link_idx = 0;
+  long net_read_timeout = 600;
+  long net_write_timeout = 600;
+  DBUG_ENTER("spider_trx_all_flush_logs");
+  SPIDER_BACKUP_DASTATUS;
+  memset((void*)&tmp_spider, 0, sizeof(ha_spider));
+  memset(&tmp_wide_handler, 0, sizeof(SPIDER_WIDE_HANDLER));
+  tmp_share.link_count = 1;
+  tmp_share.all_link_count = 1;
+  tmp_share.link_statuses = &tmp_link_statuses;
+  tmp_share.link_statuses_length = 1;
+  tmp_share.net_read_timeouts = &net_read_timeout;
+  tmp_share.net_read_timeouts_length = 1;
+  tmp_share.net_write_timeouts = &net_write_timeout;
+  tmp_share.net_write_timeouts_length = 1;
+  tmp_spider.share = &tmp_share;
+  tmp_spider.conns = &conn;
+  tmp_spider.need_mons = &need_mon;
+  tmp_spider.conn_link_idx = &conn_link_idx;
+  tmp_spider.wide_handler = &tmp_wide_handler;
+  tmp_wide_handler.trx = trx;
+  while ((conn = (SPIDER_CONN*) my_hash_element(&trx->trx_conn_hash,
+    roop_count)))
+  {
+    if ((error_num = spider_db_flush_logs(&tmp_spider)))
+    {
+      SPIDER_CONN_RESTORE_DASTATUS_AND_RESET_ERROR_NUM;
+      if (error_num)
+        DBUG_RETURN(error_num);
+    }
+    roop_count++;
+  }
+  DBUG_RETURN(0);
+}
+
+void spider_free_trx_alter_table_alloc(
+  SPIDER_TRX *trx,
+  SPIDER_ALTER_TABLE *alter_table
+) {
+  DBUG_ENTER("spider_free_trx_alter_table_alloc");
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+  my_hash_delete_with_hash_value(&trx->trx_alter_table_hash,
+    alter_table->table_name_hash_value, (uchar*) alter_table);
+#else
+  my_hash_delete(&trx->trx_alter_table_hash, (uchar*) alter_table);
+#endif
+  if (alter_table->tmp_char)
+    spider_free(trx, alter_table->tmp_char, MYF(0));
+  spider_free(trx, alter_table, MYF(0));
+  DBUG_VOID_RETURN;
+}
+
+int spider_free_trx_alter_table(
+  SPIDER_TRX *trx
+) {
+  SPIDER_ALTER_TABLE *alter_table;
+  DBUG_ENTER("spider_free_trx_alter_table");
+  while ((alter_table =
+    (SPIDER_ALTER_TABLE*) my_hash_element(&trx->trx_alter_table_hash, 0)))
+  {
+    spider_free_trx_alter_table_alloc(trx, alter_table);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_create_trx_alter_table(
+  SPIDER_TRX *trx,
+  SPIDER_SHARE *share,
+  bool now_create
+) {
+  int error_num, roop_count;
+  SPIDER_ALTER_TABLE *alter_table, *share_alter;
+  char *tmp_name;
+  char **tmp_server_names;
+  char **tmp_tgt_table_names;
+  char **tmp_tgt_dbs;
+  char **tmp_tgt_hosts;
+  char **tmp_tgt_usernames;
+  char **tmp_tgt_passwords;
+  char **tmp_tgt_sockets;
+  char **tmp_tgt_wrappers;
+  char **tmp_tgt_ssl_cas;
+  char **tmp_tgt_ssl_capaths;
+  char **tmp_tgt_ssl_certs;
+  char **tmp_tgt_ssl_ciphers;
+  char **tmp_tgt_ssl_keys;
+  char **tmp_tgt_default_files;
+  char **tmp_tgt_default_groups;
+  char **tmp_tgt_dsns;
+  char **tmp_static_link_ids;
+  uint *tmp_server_names_lengths;
+  uint *tmp_tgt_table_names_lengths;
+  uint *tmp_tgt_dbs_lengths;
+  uint *tmp_tgt_hosts_lengths;
+  uint *tmp_tgt_usernames_lengths;
+  uint *tmp_tgt_passwords_lengths;
+  uint *tmp_tgt_sockets_lengths;
+  uint *tmp_tgt_wrappers_lengths;
+  uint *tmp_tgt_ssl_cas_lengths;
+  uint *tmp_tgt_ssl_capaths_lengths;
+  uint *tmp_tgt_ssl_certs_lengths;
+  uint *tmp_tgt_ssl_ciphers_lengths;
+  uint *tmp_tgt_ssl_keys_lengths;
+  uint *tmp_tgt_default_files_lengths;
+  uint *tmp_tgt_default_groups_lengths;
+  uint *tmp_tgt_dsns_lengths;
+  uint *tmp_static_link_ids_lengths;
+  long *tmp_tgt_ports;
+  long *tmp_tgt_ssl_vscs;
+  long *tmp_monitoring_binlog_pos_at_failing;
+  long *tmp_link_statuses;
+  char *tmp_server_names_char;
+  char *tmp_tgt_table_names_char;
+  char *tmp_tgt_dbs_char;
+  char *tmp_tgt_hosts_char;
+  char *tmp_tgt_usernames_char;
+  char *tmp_tgt_passwords_char;
+  char *tmp_tgt_sockets_char;
+  char *tmp_tgt_wrappers_char;
+  char *tmp_tgt_ssl_cas_char;
+  char *tmp_tgt_ssl_capaths_char;
+  char *tmp_tgt_ssl_certs_char;
+  char *tmp_tgt_ssl_ciphers_char;
+  char *tmp_tgt_ssl_keys_char;
+  char *tmp_tgt_default_files_char;
+  char *tmp_tgt_default_groups_char;
+  char *tmp_tgt_dsns_char;
+  char *tmp_static_link_ids_char;
+  uint old_elements;
+
+  DBUG_ENTER("spider_create_trx_alter_table");
+  share_alter = &share->alter_table;
+
+  if (!(alter_table = (SPIDER_ALTER_TABLE *)
+    spider_bulk_malloc(spider_current_trx, 55, MYF(MY_WME | MY_ZEROFILL),
+      &alter_table, (uint) (sizeof(*alter_table)),
+      &tmp_name, (uint) (sizeof(char) * (share->table_name_length + 1)),
+
+      &tmp_server_names, (uint) (sizeof(char *) * share->all_link_count),
+      &tmp_tgt_table_names, (uint) (sizeof(char *) * share->all_link_count),
+      &tmp_tgt_dbs, (uint) (sizeof(char *) * share->all_link_count),
+      &tmp_tgt_hosts, (uint) (sizeof(char *) * share->all_link_count),
+      &tmp_tgt_usernames, (uint) (sizeof(char *) * share->all_link_count),
+      &tmp_tgt_passwords, (uint) (sizeof(char *) * share->all_link_count),
+      &tmp_tgt_sockets, (uint) (sizeof(char *) * share->all_link_count),
+      &tmp_tgt_wrappers, (uint) (sizeof(char *) * share->all_link_count),
+      &tmp_tgt_ssl_cas, (uint) (sizeof(char *) * share->all_link_count),
+      &tmp_tgt_ssl_capaths, (uint) (sizeof(char *) * share->all_link_count),
+      &tmp_tgt_ssl_certs, (uint) (sizeof(char *) * share->all_link_count),
+      &tmp_tgt_ssl_ciphers, (uint) (sizeof(char *) * share->all_link_count),
+      &tmp_tgt_ssl_keys, (uint) (sizeof(char *) * share->all_link_count),
+      &tmp_tgt_default_files, (uint) (sizeof(char *) * share->all_link_count),
+      &tmp_tgt_default_groups, (uint) (sizeof(char *) * share->all_link_count),
+      &tmp_tgt_dsns, (uint) (sizeof(char *) * share->all_link_count),
+      &tmp_static_link_ids, (uint) (sizeof(char *) * share->all_link_count),
+
+      &tmp_server_names_lengths, (uint) (sizeof(uint) * share->all_link_count),
+      &tmp_tgt_table_names_lengths,
+        (uint) (sizeof(uint) * share->all_link_count),
+      &tmp_tgt_dbs_lengths, (uint) (sizeof(uint) * share->all_link_count),
+      &tmp_tgt_hosts_lengths, (uint) (sizeof(uint) * share->all_link_count),
+      &tmp_tgt_usernames_lengths,
+        (uint) (sizeof(uint) * share->all_link_count),
+      &tmp_tgt_passwords_lengths,
+        (uint) (sizeof(uint) * share->all_link_count),
+      &tmp_tgt_sockets_lengths, (uint) (sizeof(uint) * share->all_link_count),
+      &tmp_tgt_wrappers_lengths, (uint) (sizeof(uint) * share->all_link_count),
+      &tmp_tgt_ssl_cas_lengths, (uint) (sizeof(uint) * share->all_link_count),
+      &tmp_tgt_ssl_capaths_lengths,
+        (uint) (sizeof(uint) * share->all_link_count),
+      &tmp_tgt_ssl_certs_lengths,
+        (uint) (sizeof(uint) * share->all_link_count),
+      &tmp_tgt_ssl_ciphers_lengths,
+        (uint) (sizeof(uint) * share->all_link_count),
+      &tmp_tgt_ssl_keys_lengths, (uint) (sizeof(uint) * share->all_link_count),
+      &tmp_tgt_default_files_lengths,
+        (uint) (sizeof(uint) * share->all_link_count),
+      &tmp_tgt_default_groups_lengths,
+        (uint) (sizeof(uint) * share->all_link_count),
+      &tmp_tgt_dsns_lengths, (uint) (sizeof(uint) * share->all_link_count),
+      &tmp_static_link_ids_lengths,
+        (uint) (sizeof(uint) * share->all_link_count),
+
+      &tmp_tgt_ports, (uint) (sizeof(long) * share->all_link_count),
+      &tmp_tgt_ssl_vscs, (uint) (sizeof(long) * share->all_link_count),
+      &tmp_monitoring_binlog_pos_at_failing,
+        (uint) (sizeof(long) * share->all_link_count),
+      &tmp_link_statuses, (uint) (sizeof(long) * share->all_link_count),
+
+      &tmp_server_names_char, (uint) (sizeof(char) *
+        (share_alter->tmp_server_names_charlen + 1)),
+      &tmp_tgt_table_names_char, (uint) (sizeof(char) *
+        (share_alter->tmp_tgt_table_names_charlen + 1)),
+      &tmp_tgt_dbs_char, (uint) (sizeof(char) *
+        (share_alter->tmp_tgt_dbs_charlen + 1)),
+      &tmp_tgt_hosts_char, (uint) (sizeof(char) *
+        (share_alter->tmp_tgt_hosts_charlen + 1)),
+      &tmp_tgt_usernames_char, (uint) (sizeof(char) *
+        (share_alter->tmp_tgt_usernames_charlen + 1)),
+      &tmp_tgt_passwords_char, (uint) (sizeof(char) *
+        (share_alter->tmp_tgt_passwords_charlen + 1)),
+      &tmp_tgt_sockets_char, (uint) (sizeof(char) *
+        (share_alter->tmp_tgt_sockets_charlen + 1)),
+      &tmp_tgt_wrappers_char, (uint) (sizeof(char) *
+        (share_alter->tmp_tgt_wrappers_charlen + 1)),
+      &tmp_tgt_ssl_cas_char, (uint) (sizeof(char) *
+        (share_alter->tmp_tgt_ssl_cas_charlen + 1)),
+      &tmp_tgt_ssl_capaths_char, (uint) (sizeof(char) *
+        (share_alter->tmp_tgt_ssl_capaths_charlen + 1)),
+      &tmp_tgt_ssl_certs_char, (uint) (sizeof(char) *
+        (share_alter->tmp_tgt_ssl_certs_charlen + 1)),
+      &tmp_tgt_ssl_ciphers_char, (uint) (sizeof(char) *
+        (share_alter->tmp_tgt_ssl_ciphers_charlen + 1)),
+      &tmp_tgt_ssl_keys_char, (uint) (sizeof(char) *
+        (share_alter->tmp_tgt_ssl_keys_charlen + 1)),
+      &tmp_tgt_default_files_char, (uint) (sizeof(char) *
+        (share_alter->tmp_tgt_default_files_charlen + 1)),
+      &tmp_tgt_default_groups_char, (uint) (sizeof(char) *
+        (share_alter->tmp_tgt_default_groups_charlen + 1)),
+      &tmp_tgt_dsns_char, (uint) (sizeof(char) *
+        (share_alter->tmp_tgt_dsns_charlen + 1)),
+      &tmp_static_link_ids_char, (uint) (sizeof(char) *
+        (share_alter->tmp_static_link_ids_charlen + 1)),
+      NullS))
+  ) {
+    error_num = HA_ERR_OUT_OF_MEM;
+    goto error_alloc_alter_table;
+  }
+  alter_table->now_create = now_create;
+  alter_table->table_name = tmp_name;
+  memcpy(alter_table->table_name, share->table_name, share->table_name_length);
+  alter_table->table_name_length = share->table_name_length;
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  DBUG_PRINT("info",("spider table_name_hash_value=%u",
+    share->table_name_hash_value));
+  alter_table->table_name_hash_value = share->table_name_hash_value;
+#endif
+  alter_table->tmp_priority = share->priority;
+  alter_table->link_count = share->link_count;
+  alter_table->all_link_count = share->all_link_count;
+
+  alter_table->tmp_server_names = tmp_server_names;
+  alter_table->tmp_tgt_table_names = tmp_tgt_table_names;
+  alter_table->tmp_tgt_dbs = tmp_tgt_dbs;
+  alter_table->tmp_tgt_hosts = tmp_tgt_hosts;
+  alter_table->tmp_tgt_usernames = tmp_tgt_usernames;
+  alter_table->tmp_tgt_passwords = tmp_tgt_passwords;
+  alter_table->tmp_tgt_sockets = tmp_tgt_sockets;
+  alter_table->tmp_tgt_wrappers = tmp_tgt_wrappers;
+  alter_table->tmp_tgt_ssl_cas = tmp_tgt_ssl_cas;
+  alter_table->tmp_tgt_ssl_capaths = tmp_tgt_ssl_capaths;
+  alter_table->tmp_tgt_ssl_certs = tmp_tgt_ssl_certs;
+  alter_table->tmp_tgt_ssl_ciphers = tmp_tgt_ssl_ciphers;
+  alter_table->tmp_tgt_ssl_keys = tmp_tgt_ssl_keys;
+  alter_table->tmp_tgt_default_files = tmp_tgt_default_files;
+  alter_table->tmp_tgt_default_groups = tmp_tgt_default_groups;
+  alter_table->tmp_tgt_dsns = tmp_tgt_dsns;
+  alter_table->tmp_static_link_ids = tmp_static_link_ids;
+
+  alter_table->tmp_tgt_ports = tmp_tgt_ports;
+  alter_table->tmp_tgt_ssl_vscs = tmp_tgt_ssl_vscs;
+  alter_table->tmp_monitoring_binlog_pos_at_failing =
+    tmp_monitoring_binlog_pos_at_failing;
+  alter_table->tmp_link_statuses = tmp_link_statuses;
+
+  alter_table->tmp_server_names_lengths = tmp_server_names_lengths;
+  alter_table->tmp_tgt_table_names_lengths = tmp_tgt_table_names_lengths;
+  alter_table->tmp_tgt_dbs_lengths = tmp_tgt_dbs_lengths;
+  alter_table->tmp_tgt_hosts_lengths = tmp_tgt_hosts_lengths;
+  alter_table->tmp_tgt_usernames_lengths = tmp_tgt_usernames_lengths;
+  alter_table->tmp_tgt_passwords_lengths = tmp_tgt_passwords_lengths;
+  alter_table->tmp_tgt_sockets_lengths = tmp_tgt_sockets_lengths;
+  alter_table->tmp_tgt_wrappers_lengths = tmp_tgt_wrappers_lengths;
+  alter_table->tmp_tgt_ssl_cas_lengths = tmp_tgt_ssl_cas_lengths;
+  alter_table->tmp_tgt_ssl_capaths_lengths = tmp_tgt_ssl_capaths_lengths;
+  alter_table->tmp_tgt_ssl_certs_lengths = tmp_tgt_ssl_certs_lengths;
+  alter_table->tmp_tgt_ssl_ciphers_lengths = tmp_tgt_ssl_ciphers_lengths;
+  alter_table->tmp_tgt_ssl_keys_lengths = tmp_tgt_ssl_keys_lengths;
+  alter_table->tmp_tgt_default_files_lengths = tmp_tgt_default_files_lengths;
+  alter_table->tmp_tgt_default_groups_lengths = tmp_tgt_default_groups_lengths;
+  alter_table->tmp_tgt_dsns_lengths = tmp_tgt_dsns_lengths;
+  alter_table->tmp_static_link_ids_lengths = tmp_static_link_ids_lengths;
+
+  for(roop_count = 0; roop_count < (int) share->all_link_count; roop_count++)
+  {
+    tmp_server_names[roop_count] = tmp_server_names_char;
+    memcpy(tmp_server_names_char,
+      share_alter->tmp_server_names[roop_count],
+      sizeof(char) * share_alter->tmp_server_names_lengths[roop_count]);
+    tmp_server_names_char +=
+      share_alter->tmp_server_names_lengths[roop_count] + 1;
+
+    tmp_tgt_table_names[roop_count] = tmp_tgt_table_names_char;
+    memcpy(tmp_tgt_table_names_char,
+      share_alter->tmp_tgt_table_names[roop_count],
+      sizeof(char) * share_alter->tmp_tgt_table_names_lengths[roop_count]);
+    tmp_tgt_table_names_char +=
+      share_alter->tmp_tgt_table_names_lengths[roop_count] + 1;
+
+    tmp_tgt_dbs[roop_count] = tmp_tgt_dbs_char;
+    memcpy(tmp_tgt_dbs_char, share_alter->tmp_tgt_dbs[roop_count],
+      sizeof(char) * share_alter->tmp_tgt_dbs_lengths[roop_count]);
+    tmp_tgt_dbs_char +=
+      share_alter->tmp_tgt_dbs_lengths[roop_count] + 1;
+
+    tmp_tgt_hosts[roop_count] = tmp_tgt_hosts_char;
+    memcpy(tmp_tgt_hosts_char, share_alter->tmp_tgt_hosts[roop_count],
+      sizeof(char) * share_alter->tmp_tgt_hosts_lengths[roop_count]);
+    tmp_tgt_hosts_char +=
+      share_alter->tmp_tgt_hosts_lengths[roop_count] + 1;
+
+    tmp_tgt_usernames[roop_count] = tmp_tgt_usernames_char;
+    memcpy(tmp_tgt_usernames_char, share_alter->tmp_tgt_usernames[roop_count],
+      sizeof(char) * share_alter->tmp_tgt_usernames_lengths[roop_count]);
+    tmp_tgt_usernames_char +=
+      share_alter->tmp_tgt_usernames_lengths[roop_count] + 1;
+
+    tmp_tgt_passwords[roop_count] = tmp_tgt_passwords_char;
+    memcpy(tmp_tgt_passwords_char, share_alter->tmp_tgt_passwords[roop_count],
+      sizeof(char) * share_alter->tmp_tgt_passwords_lengths[roop_count]);
+    tmp_tgt_passwords_char +=
+      share_alter->tmp_tgt_passwords_lengths[roop_count] + 1;
+
+    tmp_tgt_sockets[roop_count] = tmp_tgt_sockets_char;
+    memcpy(tmp_tgt_sockets_char, share_alter->tmp_tgt_sockets[roop_count],
+      sizeof(char) * share_alter->tmp_tgt_sockets_lengths[roop_count]);
+    tmp_tgt_sockets_char +=
+      share_alter->tmp_tgt_sockets_lengths[roop_count] + 1;
+
+    tmp_tgt_wrappers[roop_count] = tmp_tgt_wrappers_char;
+    memcpy(tmp_tgt_wrappers_char, share_alter->tmp_tgt_wrappers[roop_count],
+      sizeof(char) * share_alter->tmp_tgt_wrappers_lengths[roop_count]);
+    tmp_tgt_wrappers_char +=
+      share_alter->tmp_tgt_wrappers_lengths[roop_count] + 1;
+
+    tmp_tgt_ssl_cas[roop_count] = tmp_tgt_ssl_cas_char;
+    memcpy(tmp_tgt_ssl_cas_char, share_alter->tmp_tgt_ssl_cas[roop_count],
+      sizeof(char) * share_alter->tmp_tgt_ssl_cas_lengths[roop_count]);
+    tmp_tgt_ssl_cas_char +=
+      share_alter->tmp_tgt_ssl_cas_lengths[roop_count] + 1;
+
+    tmp_tgt_ssl_capaths[roop_count] = tmp_tgt_ssl_capaths_char;
+    memcpy(tmp_tgt_ssl_capaths_char,
+      share_alter->tmp_tgt_ssl_capaths[roop_count],
+      sizeof(char) * share_alter->tmp_tgt_ssl_capaths_lengths[roop_count]);
+    tmp_tgt_ssl_capaths_char +=
+      share_alter->tmp_tgt_ssl_capaths_lengths[roop_count] + 1;
+
+    tmp_tgt_ssl_certs[roop_count] = tmp_tgt_ssl_certs_char;
+    memcpy(tmp_tgt_ssl_certs_char, share_alter->tmp_tgt_ssl_certs[roop_count],
+      sizeof(char) * share_alter->tmp_tgt_ssl_certs_lengths[roop_count]);
+    tmp_tgt_ssl_certs_char +=
+      share_alter->tmp_tgt_ssl_certs_lengths[roop_count] + 1;
+
+    tmp_tgt_ssl_ciphers[roop_count] = tmp_tgt_ssl_ciphers_char;
+    memcpy(tmp_tgt_ssl_ciphers_char,
+      share_alter->tmp_tgt_ssl_ciphers[roop_count],
+      sizeof(char) * share_alter->tmp_tgt_ssl_ciphers_lengths[roop_count]);
+    tmp_tgt_ssl_ciphers_char +=
+      share_alter->tmp_tgt_ssl_ciphers_lengths[roop_count] + 1;
+
+    tmp_tgt_ssl_keys[roop_count] = tmp_tgt_ssl_keys_char;
+    memcpy(tmp_tgt_ssl_keys_char, share_alter->tmp_tgt_ssl_keys[roop_count],
+      sizeof(char) * share_alter->tmp_tgt_ssl_keys_lengths[roop_count]);
+    tmp_tgt_ssl_keys_char +=
+      share_alter->tmp_tgt_ssl_keys_lengths[roop_count] + 1;
+
+    tmp_tgt_default_files[roop_count] = tmp_tgt_default_files_char;
+    memcpy(tmp_tgt_default_files_char,
+      share_alter->tmp_tgt_default_files[roop_count],
+      sizeof(char) * share_alter->tmp_tgt_default_files_lengths[roop_count]);
+    tmp_tgt_default_files_char +=
+      share_alter->tmp_tgt_default_files_lengths[roop_count] + 1;
+
+    tmp_tgt_default_groups[roop_count] = tmp_tgt_default_groups_char;
+    memcpy(tmp_tgt_default_groups_char,
+      share_alter->tmp_tgt_default_groups[roop_count],
+      sizeof(char) * share_alter->tmp_tgt_default_groups_lengths[roop_count]);
+    tmp_tgt_default_groups_char +=
+      share_alter->tmp_tgt_default_groups_lengths[roop_count] + 1;
+
+    tmp_tgt_dsns[roop_count] = tmp_tgt_dsns_char;
+    memcpy(tmp_tgt_dsns_char, share_alter->tmp_tgt_dsns[roop_count],
+      sizeof(char) * share_alter->tmp_tgt_dsns_lengths[roop_count]);
+    tmp_tgt_dsns_char +=
+      share_alter->tmp_tgt_dsns_lengths[roop_count] + 1;
+
+    if (share_alter->tmp_static_link_ids[roop_count])
+    {
+      tmp_static_link_ids[roop_count] = tmp_static_link_ids_char;
+      memcpy(tmp_static_link_ids_char,
+        share_alter->tmp_static_link_ids[roop_count],
+        sizeof(char) * share_alter->tmp_static_link_ids_lengths[roop_count]);
+      tmp_static_link_ids_char +=
+        share_alter->tmp_static_link_ids_lengths[roop_count] + 1;
+    }
+  }
+
+  memcpy(tmp_tgt_ports, share_alter->tmp_tgt_ports,
+    sizeof(long) * share->all_link_count);
+  memcpy(tmp_tgt_ssl_vscs, share_alter->tmp_tgt_ssl_vscs,
+    sizeof(long) * share->all_link_count);
+  memcpy(tmp_monitoring_binlog_pos_at_failing,
+    share_alter->tmp_monitoring_binlog_pos_at_failing,
+    sizeof(long) * share->all_link_count);
+  memcpy(tmp_link_statuses, share_alter->tmp_link_statuses,
+    sizeof(long) * share->all_link_count);
+
+  memcpy(tmp_server_names_lengths, share_alter->tmp_server_names_lengths,
+    sizeof(uint) * share->all_link_count);
+  memcpy(tmp_tgt_table_names_lengths, share_alter->tmp_tgt_table_names_lengths,
+    sizeof(uint) * share->all_link_count);
+  memcpy(tmp_tgt_dbs_lengths, share_alter->tmp_tgt_dbs_lengths,
+    sizeof(uint) * share->all_link_count);
+  memcpy(tmp_tgt_hosts_lengths, share_alter->tmp_tgt_hosts_lengths,
+    sizeof(uint) * share->all_link_count);
+  memcpy(tmp_tgt_usernames_lengths, share_alter->tmp_tgt_usernames_lengths,
+    sizeof(uint) * share->all_link_count);
+  memcpy(tmp_tgt_passwords_lengths, share_alter->tmp_tgt_passwords_lengths,
+    sizeof(uint) * share->all_link_count);
+  memcpy(tmp_tgt_sockets_lengths, share_alter->tmp_tgt_sockets_lengths,
+    sizeof(uint) * share->all_link_count);
+  memcpy(tmp_tgt_wrappers_lengths, share_alter->tmp_tgt_wrappers_lengths,
+    sizeof(uint) * share->all_link_count);
+  memcpy(tmp_tgt_ssl_cas_lengths, share_alter->tmp_tgt_ssl_cas_lengths,
+    sizeof(uint) * share->all_link_count);
+  memcpy(tmp_tgt_ssl_capaths_lengths, share_alter->tmp_tgt_ssl_capaths_lengths,
+    sizeof(uint) * share->all_link_count);
+  memcpy(tmp_tgt_ssl_certs_lengths, share_alter->tmp_tgt_ssl_certs_lengths,
+    sizeof(uint) * share->all_link_count);
+  memcpy(tmp_tgt_ssl_ciphers_lengths, share_alter->tmp_tgt_ssl_ciphers_lengths,
+    sizeof(uint) * share->all_link_count);
+  memcpy(tmp_tgt_ssl_keys_lengths, share_alter->tmp_tgt_ssl_keys_lengths,
+    sizeof(uint) * share->all_link_count);
+  memcpy(tmp_tgt_default_files_lengths,
+    share_alter->tmp_tgt_default_files_lengths,
+    sizeof(uint) * share->all_link_count);
+  memcpy(tmp_tgt_default_groups_lengths,
+    share_alter->tmp_tgt_default_groups_lengths,
+    sizeof(uint) * share->all_link_count);
+  memcpy(tmp_tgt_dsns_lengths, share_alter->tmp_tgt_dsns_lengths,
+    sizeof(uint) * share->all_link_count);
+  memcpy(tmp_static_link_ids_lengths,
+    share_alter->tmp_static_link_ids_lengths,
+    sizeof(uint) * share->all_link_count);
+
+  alter_table->tmp_server_names_length =
+    share_alter->tmp_server_names_length;
+  alter_table->tmp_tgt_table_names_length =
+    share_alter->tmp_tgt_table_names_length;
+  alter_table->tmp_tgt_dbs_length =
+    share_alter->tmp_tgt_dbs_length;
+  alter_table->tmp_tgt_hosts_length =
+    share_alter->tmp_tgt_hosts_length;
+  alter_table->tmp_tgt_usernames_length =
+    share_alter->tmp_tgt_usernames_length;
+  alter_table->tmp_tgt_passwords_length =
+    share_alter->tmp_tgt_passwords_length;
+  alter_table->tmp_tgt_sockets_length =
+    share_alter->tmp_tgt_sockets_length;
+  alter_table->tmp_tgt_wrappers_length =
+    share_alter->tmp_tgt_wrappers_length;
+  alter_table->tmp_tgt_ssl_cas_length =
+    share_alter->tmp_tgt_ssl_cas_length;
+  alter_table->tmp_tgt_ssl_capaths_length =
+    share_alter->tmp_tgt_ssl_capaths_length;
+  alter_table->tmp_tgt_ssl_certs_length =
+    share_alter->tmp_tgt_ssl_certs_length;
+  alter_table->tmp_tgt_ssl_ciphers_length =
+    share_alter->tmp_tgt_ssl_ciphers_length;
+  alter_table->tmp_tgt_ssl_keys_length =
+    share_alter->tmp_tgt_ssl_keys_length;
+  alter_table->tmp_tgt_default_files_length =
+    share_alter->tmp_tgt_default_files_length;
+  alter_table->tmp_tgt_default_groups_length =
+    share_alter->tmp_tgt_default_groups_length;
+  alter_table->tmp_tgt_dsns_length =
+    share_alter->tmp_tgt_dsns_length;
+  alter_table->tmp_static_link_ids_length =
+    share_alter->tmp_static_link_ids_length;
+  alter_table->tmp_tgt_ports_length =
+    share_alter->tmp_tgt_ports_length;
+  alter_table->tmp_tgt_ssl_vscs_length =
+    share_alter->tmp_tgt_ssl_vscs_length;
+  alter_table->tmp_monitoring_binlog_pos_at_failing_length =
+    share_alter->tmp_monitoring_binlog_pos_at_failing_length;
+  alter_table->tmp_link_statuses_length =
+    share_alter->tmp_link_statuses_length;
+
+  old_elements = trx->trx_alter_table_hash.array.max_element;
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+  if (my_hash_insert_with_hash_value(&trx->trx_alter_table_hash,
+    alter_table->table_name_hash_value, (uchar*) alter_table))
+#else
+  if (my_hash_insert(&trx->trx_alter_table_hash, (uchar*) alter_table))
+#endif
+  {
+    error_num = HA_ERR_OUT_OF_MEM;
+    goto error;
+  }
+  if (trx->trx_alter_table_hash.array.max_element > old_elements)
+  {
+    spider_alloc_calc_mem(spider_current_trx,
+      trx->trx_alter_table_hash,
+      (trx->trx_alter_table_hash.array.max_element - old_elements) *
+      trx->trx_alter_table_hash.array.size_of_element);
+  }
+  DBUG_RETURN(0);
+
+error:
+  spider_free(trx, alter_table, MYF(0));
+error_alloc_alter_table:
+  DBUG_RETURN(error_num);
+}
+
+bool spider_cmp_trx_alter_table(
+  SPIDER_ALTER_TABLE *cmp1,
+  SPIDER_ALTER_TABLE *cmp2
+) {
+  int roop_count;
+  DBUG_ENTER("spider_cmp_trx_alter_table");
+  if (
+    cmp1->tmp_priority != cmp2->tmp_priority ||
+    cmp1->link_count != cmp2->link_count ||
+    cmp1->all_link_count != cmp2->all_link_count
+  )
+    DBUG_RETURN(TRUE);
+
+  for (roop_count = 0; roop_count < (int) cmp1->all_link_count; roop_count++)
+  {
+    if (
+      (
+        cmp1->tmp_server_names[roop_count] !=
+          cmp2->tmp_server_names[roop_count] &&
+        (
+          !cmp1->tmp_server_names[roop_count] ||
+          !cmp2->tmp_server_names[roop_count] ||
+          strcmp(cmp1->tmp_server_names[roop_count],
+            cmp2->tmp_server_names[roop_count])
+        )
+      ) ||
+      (
+        cmp1->tmp_tgt_table_names[roop_count] !=
+          cmp2->tmp_tgt_table_names[roop_count] &&
+        (
+          !cmp1->tmp_tgt_table_names[roop_count] ||
+          !cmp2->tmp_tgt_table_names[roop_count] ||
+          strcmp(cmp1->tmp_tgt_table_names[roop_count],
+            cmp2->tmp_tgt_table_names[roop_count])
+        )
+      ) ||
+      (
+        cmp1->tmp_tgt_dbs[roop_count] !=
+          cmp2->tmp_tgt_dbs[roop_count] &&
+        (
+          !cmp1->tmp_tgt_dbs[roop_count] ||
+          !cmp2->tmp_tgt_dbs[roop_count] ||
+          strcmp(cmp1->tmp_tgt_dbs[roop_count],
+            cmp2->tmp_tgt_dbs[roop_count])
+        )
+      ) ||
+      (
+        cmp1->tmp_tgt_hosts[roop_count] !=
+          cmp2->tmp_tgt_hosts[roop_count] &&
+        (
+          !cmp1->tmp_tgt_hosts[roop_count] ||
+          !cmp2->tmp_tgt_hosts[roop_count] ||
+          strcmp(cmp1->tmp_tgt_hosts[roop_count],
+            cmp2->tmp_tgt_hosts[roop_count])
+        )
+      ) ||
+      (
+        cmp1->tmp_tgt_usernames[roop_count] !=
+          cmp2->tmp_tgt_usernames[roop_count] &&
+        (
+          !cmp1->tmp_tgt_usernames[roop_count] ||
+          !cmp2->tmp_tgt_usernames[roop_count] ||
+          strcmp(cmp1->tmp_tgt_usernames[roop_count],
+            cmp2->tmp_tgt_usernames[roop_count])
+        )
+      ) ||
+      (
+        cmp1->tmp_tgt_passwords[roop_count] !=
+          cmp2->tmp_tgt_passwords[roop_count] &&
+        (
+          !cmp1->tmp_tgt_passwords[roop_count] ||
+          !cmp2->tmp_tgt_passwords[roop_count] ||
+          strcmp(cmp1->tmp_tgt_passwords[roop_count],
+            cmp2->tmp_tgt_passwords[roop_count])
+        )
+      ) ||
+      (
+        cmp1->tmp_tgt_sockets[roop_count] !=
+          cmp2->tmp_tgt_sockets[roop_count] &&
+        (
+          !cmp1->tmp_tgt_sockets[roop_count] ||
+          !cmp2->tmp_tgt_sockets[roop_count] ||
+          strcmp(cmp1->tmp_tgt_sockets[roop_count],
+            cmp2->tmp_tgt_sockets[roop_count])
+        )
+      ) ||
+      (
+        cmp1->tmp_tgt_wrappers[roop_count] !=
+          cmp2->tmp_tgt_wrappers[roop_count] &&
+        (
+          !cmp1->tmp_tgt_wrappers[roop_count] ||
+          !cmp2->tmp_tgt_wrappers[roop_count] ||
+          strcmp(cmp1->tmp_tgt_wrappers[roop_count],
+            cmp2->tmp_tgt_wrappers[roop_count])
+        )
+      ) ||
+      (
+        cmp1->tmp_tgt_ssl_cas[roop_count] !=
+          cmp2->tmp_tgt_ssl_cas[roop_count] &&
+        (
+          !cmp1->tmp_tgt_ssl_cas[roop_count] ||
+          !cmp2->tmp_tgt_ssl_cas[roop_count] ||
+          strcmp(cmp1->tmp_tgt_ssl_cas[roop_count],
+            cmp2->tmp_tgt_ssl_cas[roop_count])
+        )
+      ) ||
+      (
+        cmp1->tmp_tgt_ssl_capaths[roop_count] !=
+          cmp2->tmp_tgt_ssl_capaths[roop_count] &&
+        (
+          !cmp1->tmp_tgt_ssl_capaths[roop_count] ||
+          !cmp2->tmp_tgt_ssl_capaths[roop_count] ||
+          strcmp(cmp1->tmp_tgt_ssl_capaths[roop_count],
+            cmp2->tmp_tgt_ssl_capaths[roop_count])
+        )
+      ) ||
+      (
+        cmp1->tmp_tgt_ssl_certs[roop_count] !=
+          cmp2->tmp_tgt_ssl_certs[roop_count] &&
+        (
+          !cmp1->tmp_tgt_ssl_certs[roop_count] ||
+          !cmp2->tmp_tgt_ssl_certs[roop_count] ||
+          strcmp(cmp1->tmp_tgt_ssl_certs[roop_count],
+            cmp2->tmp_tgt_ssl_certs[roop_count])
+        )
+      ) ||
+      (
+        cmp1->tmp_tgt_ssl_ciphers[roop_count] !=
+          cmp2->tmp_tgt_ssl_ciphers[roop_count] &&
+        (
+          !cmp1->tmp_tgt_ssl_ciphers[roop_count] ||
+          !cmp2->tmp_tgt_ssl_ciphers[roop_count] ||
+          strcmp(cmp1->tmp_tgt_ssl_ciphers[roop_count],
+            cmp2->tmp_tgt_ssl_ciphers[roop_count])
+        )
+      ) ||
+      (
+        cmp1->tmp_tgt_ssl_keys[roop_count] !=
+          cmp2->tmp_tgt_ssl_keys[roop_count] &&
+        (
+          !cmp1->tmp_tgt_ssl_keys[roop_count] ||
+          !cmp2->tmp_tgt_ssl_keys[roop_count] ||
+          strcmp(cmp1->tmp_tgt_ssl_keys[roop_count],
+            cmp2->tmp_tgt_ssl_keys[roop_count])
+        )
+      ) ||
+      (
+        cmp1->tmp_tgt_default_files[roop_count] !=
+          cmp2->tmp_tgt_default_files[roop_count] &&
+        (
+          !cmp1->tmp_tgt_default_files[roop_count] ||
+          !cmp2->tmp_tgt_default_files[roop_count] ||
+          strcmp(cmp1->tmp_tgt_default_files[roop_count],
+            cmp2->tmp_tgt_default_files[roop_count])
+        )
+      ) ||
+      (
+        cmp1->tmp_tgt_default_groups[roop_count] !=
+          cmp2->tmp_tgt_default_groups[roop_count] &&
+        (
+          !cmp1->tmp_tgt_default_groups[roop_count] ||
+          !cmp2->tmp_tgt_default_groups[roop_count] ||
+          strcmp(cmp1->tmp_tgt_default_groups[roop_count],
+            cmp2->tmp_tgt_default_groups[roop_count])
+        )
+      ) ||
+      (
+        cmp1->tmp_tgt_dsns[roop_count] !=
+          cmp2->tmp_tgt_dsns[roop_count] &&
+        (
+          !cmp1->tmp_tgt_dsns[roop_count] ||
+          !cmp2->tmp_tgt_dsns[roop_count] ||
+          strcmp(cmp1->tmp_tgt_dsns[roop_count],
+            cmp2->tmp_tgt_dsns[roop_count])
+        )
+      ) ||
+      (
+        cmp1->tmp_static_link_ids[roop_count] !=
+          cmp2->tmp_static_link_ids[roop_count] &&
+        (
+          !cmp1->tmp_static_link_ids[roop_count] ||
+          !cmp2->tmp_static_link_ids[roop_count] ||
+          strcmp(cmp1->tmp_static_link_ids[roop_count],
+            cmp2->tmp_static_link_ids[roop_count])
+        )
+      ) ||
+      cmp1->tmp_tgt_ports[roop_count] != cmp2->tmp_tgt_ports[roop_count] ||
+      cmp1->tmp_tgt_ssl_vscs[roop_count] !=
+        cmp2->tmp_tgt_ssl_vscs[roop_count] ||
+      cmp1->tmp_monitoring_binlog_pos_at_failing[roop_count] !=
+        cmp2->tmp_monitoring_binlog_pos_at_failing[roop_count] ||
+      cmp1->tmp_link_statuses[roop_count] !=
+        cmp2->tmp_link_statuses[roop_count]
+    )
+      DBUG_RETURN(TRUE);
+  }
+  DBUG_RETURN(FALSE);
+}
+
+int spider_free_trx_alloc(
+  SPIDER_TRX *trx
+) {
+  int roop_count;
+  DBUG_ENTER("spider_free_trx_alloc");
+  if (trx->tmp_spider)
+  {
+    for (roop_count = 0; roop_count < SPIDER_DBTON_SIZE; ++roop_count)
+    {
+      if (trx->tmp_spider->dbton_handler[roop_count])
+      {
+        delete trx->tmp_spider->dbton_handler[roop_count];
+        trx->tmp_spider->dbton_handler[roop_count] = NULL;
+      }
+    }
+    if (trx->tmp_spider->result_list.sqls)
+    {
+      delete [] trx->tmp_spider->result_list.sqls;
+      trx->tmp_spider->result_list.sqls = NULL;
+    }
+    delete trx->tmp_spider;
+    trx->tmp_spider = NULL;
+  }
+  if (trx->tmp_share)
+  {
+    for (roop_count = 0; roop_count < SPIDER_DBTON_SIZE; ++roop_count)
+    {
+      if (trx->tmp_share->dbton_share[roop_count])
+      {
+        delete trx->tmp_share->dbton_share[roop_count];
+        trx->tmp_share->dbton_share[roop_count] = NULL;
+      }
+    }
+    spider_free_tmp_share_alloc(trx->tmp_share);
+  }
+  spider_db_udf_free_set_names(trx);
+  for (roop_count = spider_param_udf_table_lock_mutex_count() - 1;
+    roop_count >= 0; roop_count--)
+    pthread_mutex_destroy(&trx->udf_table_mutexes[roop_count]);
+  spider_free_trx_ha(trx);
+  spider_free_trx_conn(trx, TRUE);
+  spider_free_trx_alter_table(trx);
+  spider_free_mem_calc(spider_current_trx,
+    trx->trx_conn_hash_id,
+    trx->trx_conn_hash.array.max_element *
+    trx->trx_conn_hash.array.size_of_element);
+  my_hash_free(&trx->trx_conn_hash);
+  spider_free_mem_calc(spider_current_trx,
+    trx->trx_another_conn_hash_id,
+    trx->trx_another_conn_hash.array.max_element *
+    trx->trx_another_conn_hash.array.size_of_element);
+  my_hash_free(&trx->trx_another_conn_hash);
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  spider_free_mem_calc(spider_current_trx,
+    trx->trx_direct_hs_r_conn_hash_id,
+    trx->trx_direct_hs_r_conn_hash.array.max_element *
+    trx->trx_direct_hs_r_conn_hash.array.size_of_element);
+  my_hash_free(&trx->trx_direct_hs_r_conn_hash);
+  spider_free_mem_calc(spider_current_trx,
+    trx->trx_direct_hs_w_conn_hash_id,
+    trx->trx_direct_hs_w_conn_hash.array.max_element *
+    trx->trx_direct_hs_w_conn_hash.array.size_of_element);
+  my_hash_free(&trx->trx_direct_hs_w_conn_hash);
+#endif
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  spider_free_mem_calc(spider_current_trx,
+    trx->trx_hs_r_conn_hash_id,
+    trx->trx_hs_r_conn_hash.array.max_element *
+    trx->trx_hs_r_conn_hash.array.size_of_element);
+  my_hash_free(&trx->trx_hs_r_conn_hash);
+  spider_free_mem_calc(spider_current_trx,
+    trx->trx_hs_w_conn_hash_id,
+    trx->trx_hs_w_conn_hash.array.max_element *
+    trx->trx_hs_w_conn_hash.array.size_of_element);
+  my_hash_free(&trx->trx_hs_w_conn_hash);
+#endif
+  spider_free_mem_calc(spider_current_trx,
+    trx->trx_ha_hash_id,
+    trx->trx_ha_hash.array.max_element *
+    trx->trx_ha_hash.array.size_of_element);
+  my_hash_free(&trx->trx_ha_hash);
+  spider_free_mem_calc(spider_current_trx,
+    trx->trx_alter_table_hash_id,
+    trx->trx_alter_table_hash.array.max_element *
+    trx->trx_alter_table_hash.array.size_of_element);
+  my_hash_free(&trx->trx_alter_table_hash);
+  free_root(&trx->mem_root, MYF(0));
+  DBUG_RETURN(0);
+}
+
+SPIDER_TRX *spider_get_trx(
+  THD *thd,
+  bool regist_allocated_thds,
+  int *error_num
+) {
+  int roop_count = 0, roop_count2;
+  SPIDER_TRX *trx;
+  SPIDER_SHARE *tmp_share;
+  SPIDER_WIDE_HANDLER *tmp_wide_handler;
+  pthread_mutex_t *udf_table_mutexes;
+  DBUG_ENTER("spider_get_trx");
+
+  if (
+    !thd ||
+    !(trx = (SPIDER_TRX*) thd_get_ha_data(thd, spider_hton_ptr))
+  ) {
+    DBUG_PRINT("info",("spider create new trx"));
+    if (!(trx = (SPIDER_TRX *)
+      spider_bulk_malloc(NULL, 56, MYF(MY_WME | MY_ZEROFILL),
+        &trx, (uint) (sizeof(*trx)),
+        &tmp_share, (uint) (sizeof(SPIDER_SHARE)),
+        &tmp_wide_handler, (uint) sizeof(SPIDER_WIDE_HANDLER),
+        &udf_table_mutexes, (uint) (sizeof(pthread_mutex_t) *
+          spider_param_udf_table_lock_mutex_count()),
+        NullS))
+    )
+      goto error_alloc_trx;
+
+    SPD_INIT_ALLOC_ROOT(&trx->mem_root, 4096, 0, MYF(MY_WME));
+    trx->tmp_share = tmp_share;
+    trx->udf_table_mutexes = udf_table_mutexes;
+
+    for (roop_count = 0;
+      roop_count < (int) spider_param_udf_table_lock_mutex_count();
+      roop_count++)
+    {
+#if MYSQL_VERSION_ID < 50500
+      if (pthread_mutex_init(&trx->udf_table_mutexes[roop_count],
+        MY_MUTEX_INIT_FAST))
+#else
+      if (mysql_mutex_init(spd_key_mutex_udf_table,
+        &trx->udf_table_mutexes[roop_count], MY_MUTEX_INIT_FAST))
+#endif
+        goto error_init_udf_table_mutex;
+    }
+
+    if (
+      my_hash_init(PSI_INSTRUMENT_ME, &trx->trx_conn_hash,
+                   spd_charset_utf8mb3_bin, 32, 0, 0, (my_hash_get_key)
+                   spider_conn_get_key, 0, 0)
+    )
+      goto error_init_hash;
+    spider_alloc_calc_mem_init(trx->trx_conn_hash, 151);
+    spider_alloc_calc_mem(
+      thd ? ((SPIDER_TRX *) thd_get_ha_data(thd, spider_hton_ptr)) : NULL,
+      trx->trx_conn_hash,
+      trx->trx_conn_hash.array.max_element *
+      trx->trx_conn_hash.array.size_of_element);
+
+    if (
+      my_hash_init(PSI_INSTRUMENT_ME, &trx->trx_another_conn_hash,
+                   spd_charset_utf8mb3_bin, 32, 0, 0, (my_hash_get_key)
+                   spider_conn_get_key, 0, 0)
+    )
+      goto error_init_another_hash;
+    spider_alloc_calc_mem_init(trx->trx_another_conn_hash, 152);
+    spider_alloc_calc_mem(
+      thd ? ((SPIDER_TRX *) thd_get_ha_data(thd, spider_hton_ptr)) : NULL,
+      trx->trx_another_conn_hash,
+      trx->trx_another_conn_hash.array.max_element *
+      trx->trx_another_conn_hash.array.size_of_element);
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    if (
+      my_hash_init(&trx->trx_hs_r_conn_hash, spd_charset_utf8mb3_bin, 32, 0, 0,
+                   (my_hash_get_key) spider_conn_get_key, 0, 0)
+    )
+      goto error_hs_r_init_hash;
+    spider_alloc_calc_mem_init(trx->trx_hs_r_conn_hash, 153);
+    spider_alloc_calc_mem(
+      thd ? ((SPIDER_TRX *) thd_get_ha_data(thd, spider_hton_ptr)) : NULL,
+      trx->trx_hs_r_conn_hash,
+      trx->trx_hs_r_conn_hash.array.max_element *
+      trx->trx_hs_r_conn_hash.array.size_of_element);
+
+    if (
+      my_hash_init(&trx->trx_hs_w_conn_hash, spd_charset_utf8mb3_bin, 32, 0, 0,
+                   (my_hash_get_key) spider_conn_get_key, 0, 0)
+    )
+      goto error_hs_w_init_hash;
+    spider_alloc_calc_mem_init(trx->trx_hs_w_conn_hash, 154);
+    spider_alloc_calc_mem(
+      thd ? ((SPIDER_TRX *) thd_get_ha_data(thd, spider_hton_ptr)) : NULL,
+      trx->trx_hs_w_conn_hash,
+      trx->trx_hs_w_conn_hash.array.max_element *
+      trx->trx_hs_w_conn_hash.array.size_of_element);
+#endif
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    if (
+      my_hash_init(&trx->trx_direct_hs_r_conn_hash, spd_charset_utf8mb3_bin, 32,
+        0, 0, (my_hash_get_key) spider_conn_get_key, 0, 0)
+    )
+      goto error_direct_hs_r_init_hash;
+    spider_alloc_calc_mem_init(trx->trx_direct_hs_r_conn_hash, 155);
+    spider_alloc_calc_mem(
+      thd ? ((SPIDER_TRX *) thd_get_ha_data(thd, spider_hton_ptr)) : NULL,
+      trx->trx_direct_hs_r_conn_hash,
+      trx->trx_direct_hs_r_conn_hash.array.max_element *
+      trx->trx_direct_hs_r_conn_hash.array.size_of_element);
+
+    if (
+      my_hash_init(&trx->trx_direct_hs_w_conn_hash, spd_charset_utf8mb3_bin, 32,
+        0, 0, (my_hash_get_key) spider_conn_get_key, 0, 0)
+    )
+      goto error_direct_hs_w_init_hash;
+    spider_alloc_calc_mem_init(trx->trx_direct_hs_w_conn_hash, 156);
+    spider_alloc_calc_mem(
+      thd ? ((SPIDER_TRX *) thd_get_ha_data(thd, spider_hton_ptr)) : NULL,
+      trx->trx_direct_hs_w_conn_hash,
+      trx->trx_direct_hs_w_conn_hash.array.max_element *
+      trx->trx_direct_hs_w_conn_hash.array.size_of_element);
+#endif
+
+    if (
+      my_hash_init(PSI_INSTRUMENT_ME, &trx->trx_alter_table_hash,
+                   spd_charset_utf8mb3_bin, 32, 0, 0, (my_hash_get_key)
+                   spider_alter_tbl_get_key, 0, 0)
+    )
+      goto error_init_alter_hash;
+    spider_alloc_calc_mem_init(trx->trx_alter_table_hash, 157);
+    spider_alloc_calc_mem(
+      thd ? ((SPIDER_TRX *) thd_get_ha_data(thd, spider_hton_ptr)) : NULL,
+      trx->trx_alter_table_hash,
+      trx->trx_alter_table_hash.array.max_element *
+      trx->trx_alter_table_hash.array.size_of_element);
+
+    if (
+      my_hash_init(PSI_INSTRUMENT_ME, &trx->trx_ha_hash,
+                   spd_charset_utf8mb3_bin, 32, 0, 0, (my_hash_get_key)
+                   spider_trx_ha_get_key, 0, 0)
+    )
+      goto error_init_trx_ha_hash;
+    spider_alloc_calc_mem_init(trx->trx_ha_hash, 158);
+    spider_alloc_calc_mem(
+      thd ? ((SPIDER_TRX *) thd_get_ha_data(thd, spider_hton_ptr)) : NULL,
+      trx->trx_ha_hash,
+      trx->trx_ha_hash.array.max_element *
+      trx->trx_ha_hash.array.size_of_element);
+
+    trx->thd = (THD*) thd;
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+    if (thd)
+      trx->thd_hash_value = my_calc_hash(&spider_allocated_thds,
+        (uchar*) thd, sizeof(THD *));
+    else
+      trx->thd_hash_value = 0;
+#endif
+    pthread_mutex_lock(&spider_thread_id_mutex);
+    trx->spider_thread_id = spider_thread_id;
+    ++spider_thread_id;
+    pthread_mutex_unlock(&spider_thread_id_mutex);
+    trx->trx_conn_adjustment = 1;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    trx->trx_hs_r_conn_adjustment = 1;
+    trx->trx_hs_w_conn_adjustment = 1;
+#endif
+
+    if (thd)
+    {
+      spider_set_tmp_share_pointer(trx->tmp_share, trx->tmp_connect_info,
+        trx->tmp_connect_info_length, trx->tmp_long, trx->tmp_longlong);
+      if (
+        spider_set_connect_info_default(
+          trx->tmp_share,
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+          NULL,
+          NULL,
+#endif
+          NULL
+        ) ||
+        spider_set_connect_info_default_db_table(
+          trx->tmp_share,
+          "", 0,
+          "", 0
+        ) ||
+        spider_create_conn_keys(trx->tmp_share)
+      ) {
+        goto error_set_connect_info_default;
+      }
+
+      if (!(trx->tmp_spider = new (&trx->mem_root) ha_spider()))
+      {
+        goto error_alloc_spider;
+      }
+      trx->tmp_spider->need_mons = &trx->tmp_need_mon;
+      trx->tmp_spider->share = trx->tmp_share;
+      trx->tmp_spider->wide_handler = tmp_wide_handler;
+      tmp_wide_handler->trx = trx;
+      trx->tmp_spider->dbton_handler = trx->tmp_dbton_handler;
+      if (!(trx->tmp_spider->result_list.sqls =
+        new spider_string[trx->tmp_share->link_count]))
+      {
+        goto error_init_result_list_sql;
+      }
+      for (roop_count2 = 0; roop_count2 < (int) trx->tmp_share->link_count;
+        ++roop_count2)
+      {
+        trx->tmp_spider->result_list.sqls[roop_count2].init_calc_mem(121);
+        trx->tmp_spider->result_list.sqls[roop_count2].set_charset(
+          trx->tmp_share->access_charset);
+      }
+
+      for (roop_count2 = 0; roop_count2 < SPIDER_DBTON_SIZE; ++roop_count2)
+      {
+        if (!spider_dbton[roop_count2].init)
+          continue;
+
+        if (!(trx->tmp_share->dbton_share[roop_count2] =
+          spider_dbton[roop_count2].create_db_share(trx->tmp_share)))
+        {
+          goto error_create_db_share;
+        }
+        if (trx->tmp_share->dbton_share[roop_count2]->init())
+        {
+          delete trx->tmp_share->dbton_share[roop_count2];
+          trx->tmp_share->dbton_share[roop_count2] = NULL;
+          goto error_create_db_share;
+        }
+
+        if (!(trx->tmp_spider->dbton_handler[roop_count2] =
+          spider_dbton[roop_count2].create_db_handler(trx->tmp_spider,
+            trx->tmp_share->dbton_share[roop_count2])))
+        {
+          goto error_create_db_share;
+        }
+        if (trx->tmp_spider->dbton_handler[roop_count2]->init())
+        {
+          delete trx->tmp_spider->dbton_handler[roop_count2];
+          trx->tmp_spider->dbton_handler[roop_count2] = NULL;
+          goto error_create_db_share;
+        }
+      }
+
+      if (regist_allocated_thds)
+      {
+        pthread_mutex_lock(&spider_allocated_thds_mutex);
+        uint old_elements = spider_allocated_thds.array.max_element;
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+        if (my_hash_insert_with_hash_value(&spider_allocated_thds,
+          trx->thd_hash_value, (uchar*) thd))
+#else
+        if (my_hash_insert(&spider_allocated_thds, (uchar*) thd))
+#endif
+        {
+          pthread_mutex_unlock(&spider_allocated_thds_mutex);
+          goto error_allocated_thds_insert;
+        }
+        if (spider_allocated_thds.array.max_element > old_elements)
+        {
+          spider_alloc_calc_mem(trx,
+            spider_allocated_thds,
+            (spider_allocated_thds.array.max_element - old_elements) *
+            spider_allocated_thds.array.size_of_element);
+        }
+        pthread_mutex_unlock(&spider_allocated_thds_mutex);
+        trx->registed_allocated_thds = TRUE;
+      }
+      thd_set_ha_data(thd, spider_hton_ptr, trx);
+    }
+  }
+
+  DBUG_PRINT("info",("spider trx=%p", trx));
+  DBUG_RETURN(trx);
+
+error_allocated_thds_insert:
+error_alloc_spider:
+error_create_db_share:
+  if (thd)
+  {
+    delete [] trx->tmp_spider->result_list.sqls;
+    trx->tmp_spider->result_list.sqls = NULL;
+  }
+error_init_result_list_sql:
+  if (thd)
+  {
+    delete trx->tmp_spider;
+    trx->tmp_spider = NULL;
+    for (roop_count2 = 0; roop_count2 < SPIDER_DBTON_SIZE; ++roop_count2)
+    {
+      if (trx->tmp_spider->dbton_handler[roop_count2])
+      {
+        delete trx->tmp_spider->dbton_handler[roop_count2];
+        trx->tmp_spider->dbton_handler[roop_count2] = NULL;
+      }
+      if (trx->tmp_share->dbton_share[roop_count2])
+      {
+        delete trx->tmp_share->dbton_share[roop_count2];
+        trx->tmp_share->dbton_share[roop_count2] = NULL;
+      }
+    }
+  }
+error_set_connect_info_default:
+  if (thd)
+  {
+    spider_free_tmp_share_alloc(trx->tmp_share);
+  }
+  spider_free_mem_calc(trx,
+    trx->trx_ha_hash_id,
+    trx->trx_ha_hash.array.max_element *
+    trx->trx_ha_hash.array.size_of_element);
+  my_hash_free(&trx->trx_ha_hash);
+error_init_trx_ha_hash:
+  spider_free_mem_calc(
+    thd ? ((SPIDER_TRX *) thd_get_ha_data(thd, spider_hton_ptr)) : NULL,
+    trx->trx_alter_table_hash_id,
+    trx->trx_alter_table_hash.array.max_element *
+    trx->trx_alter_table_hash.array.size_of_element);
+  my_hash_free(&trx->trx_alter_table_hash);
+error_init_alter_hash:
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  spider_free_mem_calc(
+    thd ? ((SPIDER_TRX *) thd_get_ha_data(thd, spider_hton_ptr)) : NULL,
+    trx->trx_direct_hs_w_conn_hash_id,
+    trx->trx_direct_hs_w_conn_hash.array.max_element *
+    trx->trx_direct_hs_w_conn_hash.array.size_of_element);
+  my_hash_free(&trx->trx_direct_hs_w_conn_hash);
+error_direct_hs_w_init_hash:
+  spider_free_mem_calc(
+    thd ? ((SPIDER_TRX *) thd_get_ha_data(thd, spider_hton_ptr)) : NULL,
+    trx->trx_direct_hs_r_conn_hash_id,
+    trx->trx_direct_hs_r_conn_hash.array.max_element *
+    trx->trx_direct_hs_r_conn_hash.array.size_of_element);
+  my_hash_free(&trx->trx_direct_hs_r_conn_hash);
+error_direct_hs_r_init_hash:
+#endif
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+  spider_free_mem_calc(
+    thd ? ((SPIDER_TRX *) thd_get_ha_data(thd, spider_hton_ptr)) : NULL,
+    trx->trx_hs_w_conn_hash_id,
+    trx->trx_hs_w_conn_hash.array.max_element *
+    trx->trx_hs_w_conn_hash.array.size_of_element);
+  my_hash_free(&trx->trx_hs_w_conn_hash);
+error_hs_w_init_hash:
+  spider_free_mem_calc(
+    thd ? ((SPIDER_TRX *) thd_get_ha_data(thd, spider_hton_ptr)) : NULL,
+    trx->trx_hs_r_conn_hash_id,
+    trx->trx_hs_r_conn_hash.array.max_element *
+    trx->trx_hs_r_conn_hash.array.size_of_element);
+  my_hash_free(&trx->trx_hs_r_conn_hash);
+error_hs_r_init_hash:
+#endif
+  spider_free_mem_calc(
+    thd ? ((SPIDER_TRX *) thd_get_ha_data(thd, spider_hton_ptr)) : NULL,
+    trx->trx_another_conn_hash_id,
+    trx->trx_another_conn_hash.array.max_element *
+    trx->trx_another_conn_hash.array.size_of_element);
+  my_hash_free(&trx->trx_another_conn_hash);
+error_init_another_hash:
+  spider_free_mem_calc(
+    thd ? ((SPIDER_TRX *) thd_get_ha_data(thd, spider_hton_ptr)) : NULL,
+    trx->trx_conn_hash_id,
+    trx->trx_conn_hash.array.max_element *
+    trx->trx_conn_hash.array.size_of_element);
+  my_hash_free(&trx->trx_conn_hash);
+error_init_hash:
+  if (roop_count > 0)
+  {
+    for (roop_count--; roop_count >= 0; roop_count--)
+      pthread_mutex_destroy(&trx->udf_table_mutexes[roop_count]);
+  }
+error_init_udf_table_mutex:
+  free_root(&trx->mem_root, MYF(0));
+  spider_free(NULL, trx, MYF(0));
+error_alloc_trx:
+  *error_num = HA_ERR_OUT_OF_MEM;
+  DBUG_RETURN(NULL);
+}
+
+int spider_free_trx(
+  SPIDER_TRX *trx,
+  bool need_lock,
+  bool reset_ha_data
+) {
+  DBUG_ENTER("spider_free_trx");
+  if (trx->thd)
+  {
+    if (trx->registed_allocated_thds)
+    {
+      if (need_lock)
+        pthread_mutex_lock(&spider_allocated_thds_mutex);
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+      my_hash_delete_with_hash_value(&spider_allocated_thds,
+        trx->thd_hash_value, (uchar*) trx->thd);
+#else
+      my_hash_delete(&spider_allocated_thds, (uchar*) trx->thd);
+#endif
+      if (need_lock)
+        pthread_mutex_unlock(&spider_allocated_thds_mutex);
+    }
+    if (reset_ha_data)
+      thd_set_ha_data(trx->thd, spider_hton_ptr, NULL);
+  }
+  spider_free_trx_alloc(trx);
+  spider_merge_mem_calc(trx, TRUE);
+  spider_free(NULL, trx, MYF(0));
+  DBUG_RETURN(0);
+}
+
+int spider_check_and_set_trx_isolation(
+  SPIDER_CONN *conn,
+  int *need_mon
+) {
+  THD *thd = conn->thd;
+  int trx_isolation;
+  DBUG_ENTER("spider_check_and_set_trx_isolation");
+  if (thd->system_thread == SYSTEM_THREAD_SLAVE_SQL)
+  {
+    if ((trx_isolation = spider_param_slave_trx_isolation()) == -1)
+    {
+      trx_isolation = thd_tx_isolation(thd);
+      DBUG_PRINT("info",("spider local trx_isolation=%d", trx_isolation));
+    } else {
+      DBUG_PRINT("info",("spider slave trx_isolation=%d", trx_isolation));
+    }
+  } else {
+    trx_isolation = thd_tx_isolation(thd);
+    DBUG_PRINT("info",("spider local trx_isolation=%d", trx_isolation));
+  }
+  spider_conn_queue_trx_isolation(conn, trx_isolation);
+  DBUG_RETURN(0);
+}
+
+int spider_check_and_set_autocommit(
+  THD *thd,
+  SPIDER_CONN *conn,
+  int *need_mon
+) {
+  bool autocommit;
+  DBUG_ENTER("spider_check_and_set_autocommit");
+
+  autocommit = !thd_test_options(thd, OPTION_NOT_AUTOCOMMIT);
+  if (autocommit)
+  {
+    spider_conn_queue_autocommit(conn, TRUE);
+  } else {
+    spider_conn_queue_autocommit(conn, FALSE);
+  }
+/*
+  if (autocommit && conn->autocommit != 1)
+  {
+    spider_conn_queue_autocommit(conn, TRUE);
+    conn->autocommit = 1;
+  } else if (!autocommit && conn->autocommit != 0)
+  {
+    spider_conn_queue_autocommit(conn, FALSE);
+    conn->autocommit = 0;
+  }
+*/
+  DBUG_RETURN(0);
+}
+
+int spider_check_and_set_sql_log_off(
+  THD *thd,
+  SPIDER_CONN *conn,
+  int *need_mon
+) {
+  int internal_sql_log_off;
+  DBUG_ENTER("spider_check_and_set_sql_log_off");
+
+  internal_sql_log_off = spider_param_internal_sql_log_off(thd);
+  if (internal_sql_log_off != -1)
+  {
+    if (internal_sql_log_off)
+    {
+      spider_conn_queue_sql_log_off(conn, TRUE);
+    } else {
+      spider_conn_queue_sql_log_off(conn, FALSE);
+    }
+  }
+/*
+  if (internal_sql_log_off && conn->sql_log_off != 1)
+  {
+    spider_conn_queue_sql_log_off(conn, TRUE);
+    conn->sql_log_off = 1;
+  } else if (!internal_sql_log_off && conn->sql_log_off != 0)
+  {
+    spider_conn_queue_sql_log_off(conn, FALSE);
+    conn->sql_log_off = 0;
+  }
+*/
+  DBUG_RETURN(0);
+}
+
+int spider_check_and_set_wait_timeout(
+  THD *thd,
+  SPIDER_CONN *conn,
+  int *need_mon
+) {
+  int wait_timeout;
+  DBUG_ENTER("spider_check_and_set_wait_timeout");
+
+  wait_timeout = spider_param_wait_timeout(thd);
+  if (wait_timeout > 0)
+  {
+    spider_conn_queue_wait_timeout(conn, wait_timeout);
+  }
+  DBUG_RETURN(0);
+}
+
+int spider_check_and_set_sql_mode(
+  THD *thd,
+  SPIDER_CONN *conn,
+  int *need_mon
+) {
+  DBUG_ENTER("spider_check_and_set_sql_mode");
+  spider_conn_queue_sql_mode(conn, thd->variables.sql_mode);
+  DBUG_RETURN(0);
+}
+
+int spider_check_and_set_time_zone(
+  THD *thd,
+  SPIDER_CONN *conn,
+  int *need_mon
+) {
+  Time_zone *time_zone;
+  DBUG_ENTER("spider_check_and_set_time_zone");
+
+  time_zone = thd->variables.time_zone;
+  DBUG_PRINT("info",("spider local time_zone=%p", time_zone));
+/*
+  DBUG_PRINT("info",("spider conn->time_zone=%p", conn->time_zone));
+  if (time_zone != conn->time_zone)
+  {
+*/
+    spider_conn_queue_time_zone(conn, time_zone);
+/*
+    conn->time_zone = time_zone;
+  }
+*/
+  DBUG_RETURN(0);
+}
+
+static int spider_xa_lock(
+  XID_STATE *xid_state,
+  XID *xid
+) {
+  THD *thd = current_thd;
+  int error_num;
+  const char *old_proc_info;
+  DBUG_ENTER("spider_xa_lock");
+#ifdef SPIDER_XID_USES_xid_cache_iterate
+#else
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  my_hash_value_type hash_value = my_calc_hash(spd_db_att_xid_cache,
+    (uchar*) xid_state->xid.key(), xid_state->xid.key_length());
+#ifdef XID_CACHE_IS_SPLITTED
+  uint idx = hash_value % *spd_db_att_xid_cache_split_num;
+#endif
+#endif
+#endif
+  old_proc_info = thd_proc_info(thd, "Locking xid by Spider");
+#ifdef SPIDER_XID_USES_xid_cache_iterate
+  if (xid_cache_insert(thd, xid_state, xid))
+  {
+    error_num = (spider_stmt_da_sql_errno(thd) == ER_XAER_DUPID ?
+      ER_SPIDER_XA_LOCKED_NUM : HA_ERR_OUT_OF_MEM);
+    goto error;
+  }
+#else
+#ifdef XID_CACHE_IS_SPLITTED
+  pthread_mutex_lock(&spd_db_att_LOCK_xid_cache[idx]);
+#else
+  pthread_mutex_lock(spd_db_att_LOCK_xid_cache);
+#endif
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+#ifdef XID_CACHE_IS_SPLITTED
+  if (my_hash_search_using_hash_value(&spd_db_att_xid_cache[idx], hash_value,
+    xid_state->xid.key(), xid_state->xid.key_length()))
+#else
+  if (my_hash_search_using_hash_value(spd_db_att_xid_cache, hash_value,
+    xid_state->xid.key(), xid_state->xid.key_length()))
+#endif
+#else
+  if (my_hash_search(spd_db_att_xid_cache,
+    xid_state->xid.key(), xid_state->xid.key_length()))
+#endif
+  {
+    error_num = ER_SPIDER_XA_LOCKED_NUM;
+    goto error;
+  }
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+#ifdef XID_CACHE_IS_SPLITTED
+  if (my_hash_insert_with_hash_value(&spd_db_att_xid_cache[idx], hash_value,
+    (uchar*)xid_state))
+#else
+  if (my_hash_insert_with_hash_value(spd_db_att_xid_cache, hash_value,
+    (uchar*)xid_state))
+#endif
+#else
+  if (my_hash_insert(spd_db_att_xid_cache, (uchar*)xid_state))
+#endif
+  {
+    error_num = HA_ERR_OUT_OF_MEM;
+    goto error;
+  }
+#ifdef XID_CACHE_IS_SPLITTED
+  pthread_mutex_unlock(&spd_db_att_LOCK_xid_cache[idx]);
+#else
+  pthread_mutex_unlock(spd_db_att_LOCK_xid_cache);
+#endif
+#endif
+  thd_proc_info(thd, old_proc_info);
+  DBUG_RETURN(0);
+
+error:
+#ifdef SPIDER_XID_USES_xid_cache_iterate
+#else
+#ifdef XID_CACHE_IS_SPLITTED
+  pthread_mutex_unlock(&spd_db_att_LOCK_xid_cache[idx]);
+#else
+  pthread_mutex_unlock(spd_db_att_LOCK_xid_cache);
+#endif
+#endif
+  thd_proc_info(thd, old_proc_info);
+  DBUG_RETURN(error_num);
+}
+
+static int spider_xa_unlock(
+  XID_STATE *xid_state
+) {
+  THD *thd = current_thd;
+  const char *old_proc_info;
+  DBUG_ENTER("spider_xa_unlock");
+#ifdef SPIDER_XID_USES_xid_cache_iterate
+#else
+#if defined(SPIDER_HAS_HASH_VALUE_TYPE) && defined(HASH_UPDATE_WITH_HASH_VALUE)
+  my_hash_value_type hash_value = my_calc_hash(spd_db_att_xid_cache,
+    (uchar*) xid_state->xid.key(), xid_state->xid.key_length());
+#ifdef XID_CACHE_IS_SPLITTED
+  uint idx = hash_value % *spd_db_att_xid_cache_split_num;
+#endif
+#endif
+#endif
+  old_proc_info = thd_proc_info(thd, "Unlocking xid by Spider");
+#ifdef SPIDER_XID_USES_xid_cache_iterate
+  xid_cache_delete(thd, xid_state);
+#else
+#ifdef XID_CACHE_IS_SPLITTED
+  pthread_mutex_lock(&spd_db_att_LOCK_xid_cache[idx]);
+#else
+  pthread_mutex_lock(spd_db_att_LOCK_xid_cache);
+#endif
+#if defined(SPIDER_HAS_HASH_VALUE_TYPE) && defined(HASH_UPDATE_WITH_HASH_VALUE)
+#ifdef XID_CACHE_IS_SPLITTED
+  my_hash_delete_with_hash_value(&spd_db_att_xid_cache[idx],
+    hash_value, (uchar *)xid_state);
+#else
+  my_hash_delete_with_hash_value(spd_db_att_xid_cache,
+    hash_value, (uchar *)xid_state);
+#endif
+#else
+  my_hash_delete(spd_db_att_xid_cache, (uchar *)xid_state);
+#endif
+#ifdef XID_CACHE_IS_SPLITTED
+  pthread_mutex_unlock(&spd_db_att_LOCK_xid_cache[idx]);
+#else
+  pthread_mutex_unlock(spd_db_att_LOCK_xid_cache);
+#endif
+#endif
+  thd_proc_info(thd, old_proc_info);
+  DBUG_RETURN(0);
+}
+
+int spider_start_internal_consistent_snapshot(
+  SPIDER_TRX *trx,
+  SPIDER_CONN *conn,
+  int *need_mon
+) {
+  DBUG_ENTER("spider_start_internal_consistent_snapshot");
+  if (trx->trx_consistent_snapshot)
+    DBUG_RETURN(spider_db_consistent_snapshot(conn, need_mon));
+  DBUG_RETURN(0);
+}
+
+int spider_internal_start_trx(
+  ha_spider *spider
+) {
+  int error_num;
+  SPIDER_TRX *trx = spider->wide_handler->trx;
+  THD *thd = trx->thd;
+  bool xa_lock = FALSE;
+  DBUG_ENTER("spider_internal_start_trx");
+
+  if (!trx->trx_start)
+  {
+    if (!trx->trx_consistent_snapshot)
+    {
+      trx->use_consistent_snapshot =
+        spider_param_use_consistent_snapshot(thd);
+      trx->internal_xa = spider_param_internal_xa(thd);
+      trx->internal_xa_snapshot = spider_param_internal_xa_snapshot(thd);
+    }
+  }
+  spider->wide_handler->consistent_snapshot = FALSE;
+  if (trx->trx_consistent_snapshot)
+  {
+    if (trx->internal_xa && trx->internal_xa_snapshot < 2)
+    {
+      error_num = ER_SPIDER_CANT_USE_BOTH_INNER_XA_AND_SNAPSHOT_NUM;
+      my_message(error_num, ER_SPIDER_CANT_USE_BOTH_INNER_XA_AND_SNAPSHOT_STR,
+        MYF(0));
+      goto error;
+    } else if (!trx->internal_xa || trx->internal_xa_snapshot == 2)
+    {
+      spider->wide_handler->consistent_snapshot = TRUE;
+    }
+  }
+  DBUG_PRINT("info",("spider trx->trx_start= %s",
+    trx->trx_start ? "TRUE" : "FALSE"));
+  if (!trx->trx_start)
+  {
+    if (
+      thd->transaction->xid_state.is_explicit_XA() &&
+      spider_param_support_xa()
+    ) {
+      trx->trx_xa = TRUE;
+      thd_get_xid(thd, (MYSQL_XID*) &trx->xid);
+    }
+
+    if (
+      !trx->trx_xa &&
+      trx->internal_xa &&
+      (!trx->trx_consistent_snapshot || trx->internal_xa_snapshot == 3) &&
+      spider->wide_handler->sql_command != SQLCOM_LOCK_TABLES
+    ) {
+      trx->trx_xa = TRUE;
+      trx->xid.formatID = 1;
+      if (spider_param_internal_xa_id_type(thd) == 0)
+      {
+        trx->xid.gtrid_length
+          = my_sprintf(trx->xid.data,
+          (trx->xid.data, "%lx", thd_get_thread_id(thd)));
+      } else {
+        trx->xid.gtrid_length
+          = my_sprintf(trx->xid.data,
+          (trx->xid.data, "%lx%016llx", thd_get_thread_id(thd),
+            thd->query_id));
+      }
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100002
+      trx->xid.bqual_length
+        = my_sprintf(trx->xid.data + trx->xid.gtrid_length,
+        (trx->xid.data + trx->xid.gtrid_length, "%lx",
+        thd->variables.server_id));
+#else
+      trx->xid.bqual_length
+        = my_sprintf(trx->xid.data + trx->xid.gtrid_length,
+        (trx->xid.data + trx->xid.gtrid_length, "%x",
+        thd->server_id));
+#endif
+
+#ifdef SPIDER_XID_STATE_HAS_in_thd
+      trx->internal_xid_state.in_thd = 1;
+#endif
+      if ((error_num = spider_xa_lock(&trx->internal_xid_state, &trx->xid)))
+      {
+        if (error_num == ER_SPIDER_XA_LOCKED_NUM)
+          my_message(error_num, ER_SPIDER_XA_LOCKED_STR, MYF(0));
+        goto error;
+      }
+      xa_lock = TRUE;
+    } else
+      trx->internal_xa = FALSE;
+
+    DBUG_PRINT("info",("spider trx->trx_consistent_snapshot= %s",
+      trx->trx_consistent_snapshot ? "TRUE" : "FALSE"));
+    if (!trx->trx_consistent_snapshot)
+    {
+      trans_register_ha(thd, FALSE, spider_hton_ptr, 0);
+      if (thd_test_options(thd, OPTION_NOT_AUTOCOMMIT | OPTION_BEGIN))
+        trans_register_ha(thd, TRUE, spider_hton_ptr, 0);
+    }
+    trx->trx_start = TRUE;
+    trx->trx_xa_prepared = FALSE;
+    trx->updated_in_this_trx = FALSE;
+    DBUG_PRINT("info",("spider trx->updated_in_this_trx=FALSE"));
+  }
+  DBUG_RETURN(0);
+
+error:
+  if (xa_lock)
+    spider_xa_unlock(&trx->internal_xid_state);
+  DBUG_RETURN(error_num);
+}
+
+int spider_internal_start_trx_for_connection(
+  ha_spider *spider,
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  int error_num;
+  SPIDER_TRX *trx = spider->wide_handler->trx;
+  THD *thd = trx->thd;
+  bool sync_autocommit = spider_param_sync_autocommit(thd);
+  double ping_interval_at_trx_start =
+    spider_param_ping_interval_at_trx_start(thd);
+  time_t tmp_time = (time_t) time((time_t*) 0);
+  DBUG_ENTER("spider_internal_start_trx_for_connection");
+  if (
+    conn->server_lost ||
+    difftime(tmp_time, conn->ping_time) >= ping_interval_at_trx_start
+  ) {
+    spider_conn_queue_ping(spider, conn, link_idx);
+  }
+  conn->disable_reconnect = TRUE;
+  if (
+    (error_num = spider_check_and_set_sql_log_off(thd, conn,
+      &spider->need_mons[link_idx])) ||
+    (error_num = spider_check_and_set_wait_timeout(thd, conn,
+      &spider->need_mons[link_idx])) ||
+    (spider_param_sync_sql_mode(thd) &&
+      (error_num = spider_check_and_set_sql_mode(thd, conn,
+        &spider->need_mons[link_idx]))) ||
+    (sync_autocommit &&
+      (error_num = spider_check_and_set_autocommit(thd, conn,
+        &spider->need_mons[link_idx])))
+  )
+    goto error;
+
+  if (spider->wide_handler->consistent_snapshot)
+  {
+    if ((error_num = spider_start_internal_consistent_snapshot(trx, conn,
+      &spider->need_mons[link_idx])))
+      goto error;
+  }
+
+  DBUG_PRINT("info",("spider sync_autocommit = %d", sync_autocommit));
+  DBUG_PRINT("info",("spider conn->semi_trx_chk = %d", conn->semi_trx_chk));
+  DBUG_PRINT("info",("spider conn->table_lock = %d", conn->table_lock));
+  DBUG_PRINT("info",("spider conn->autocommit = %d", conn->autocommit));
+  DBUG_PRINT("info",("spider semi_trx = %d", spider_param_semi_trx(thd)));
+  conn->semi_trx = FALSE;
+  if (conn->table_lock == 3)
+  {
+    DBUG_PRINT("info",("spider conn->table_lock == 3"));
+    conn->disable_xa = TRUE;
+  } else if (trx->trx_xa)
+  {
+    DBUG_PRINT("info",("spider trx->trx_xa"));
+    if (
+      sync_autocommit &&
+      conn->semi_trx_chk &&
+      !conn->table_lock &&
+      (
+        (!conn->queued_autocommit && conn->autocommit == 1) ||
+        (conn->queued_autocommit && conn->queued_autocommit_val == TRUE)
+      ) &&
+      spider_param_semi_trx(thd)
+    ) {
+      DBUG_PRINT("info",("spider semi_trx is set"));
+      conn->semi_trx = TRUE;
+    }
+    spider_conn_queue_xa_start(conn, &trx->xid);
+    conn->disable_xa = FALSE;
+  } else if (
+    !trx->trx_consistent_snapshot &&
+    !thd_test_options(thd, OPTION_BEGIN) &&
+    sync_autocommit &&
+    conn->semi_trx_chk &&
+    !conn->table_lock &&
+    (
+      (!conn->queued_autocommit && conn->autocommit == 1) ||
+      (conn->queued_autocommit && conn->queued_autocommit_val == TRUE)
+    ) &&
+    spider_param_semi_trx(thd)
+  ) {
+    DBUG_PRINT("info",("spider semi_trx is set"));
+    spider_conn_queue_start_transaction(conn);
+    conn->semi_trx = TRUE;
+  } else if (
+    !trx->trx_consistent_snapshot &&
+    thd_test_options(thd, OPTION_BEGIN)
+  ) {
+    DBUG_PRINT("info",("spider start transaction"));
+    spider_conn_queue_start_transaction(conn);
+  }
+
+  conn->join_trx = 1;
+  if (trx->join_trx_top)
+    spider_tree_insert(trx->join_trx_top, conn);
+  else {
+    conn->p_small = NULL;
+    conn->p_big = NULL;
+    conn->c_small = NULL;
+    conn->c_big = NULL;
+    trx->join_trx_top = conn;
+  }
+  DBUG_RETURN(0);
+
+error:
+  DBUG_RETURN(error_num);
+}
+
+int spider_internal_xa_commit(
+  THD* thd,
+  SPIDER_TRX *trx,
+  XID* xid,
+  TABLE *table_xa,
+  TABLE *table_xa_member
+) {
+  int error_num = 0, tmp_error_num;
+  char xa_key[MAX_KEY_LENGTH];
+  SPIDER_CONN *conn;
+  uint force_commit = spider_param_force_commit(thd);
+  MEM_ROOT mem_root;
+  SPIDER_Open_tables_backup open_tables_backup;
+  bool table_xa_opened = FALSE;
+  bool table_xa_member_opened = FALSE;
+  DBUG_ENTER("spider_internal_xa_commit");
+
+  if (trx->updated_in_this_trx || spider_param_xa_register_mode(thd) == 0)
+  {
+    /*
+      select
+        status
+      from
+        mysql.spider_xa
+      where
+        format_id = xid->format_id and
+        gtrid_length = xid->gtrid_length and
+        data = xid->data
+    */
+    if (
+      !(table_xa = spider_open_sys_table(
+        thd, SPIDER_SYS_XA_TABLE_NAME_STR, SPIDER_SYS_XA_TABLE_NAME_LEN,
+        TRUE, &open_tables_backup, TRUE, &error_num))
+    )
+      goto error_open_table;
+    table_xa_opened = TRUE;
+    spider_store_xa_pk(table_xa, &trx->xid);
+    if (
+      (error_num = spider_check_sys_table(table_xa, xa_key))
+    ) {
+      if (error_num != HA_ERR_KEY_NOT_FOUND && error_num != HA_ERR_END_OF_FILE)
+      {
+        table_xa->file->print_error(error_num, MYF(0));
+        goto error;
+      }
+      my_message(ER_SPIDER_XA_NOT_EXISTS_NUM, ER_SPIDER_XA_NOT_EXISTS_STR,
+        MYF(0));
+      error_num = ER_SPIDER_XA_NOT_EXISTS_NUM;
+      goto error;
+    }
+    SPD_INIT_ALLOC_ROOT(&mem_root, 4096, 0, MYF(MY_WME));
+    if (
+      force_commit != 2 &&
+      (error_num = spider_check_sys_xa_status(
+        table_xa,
+        SPIDER_SYS_XA_PREPARED_STR,
+        SPIDER_SYS_XA_COMMIT_STR,
+        NULL,
+        ER_SPIDER_XA_NOT_PREPARED_NUM,
+        &mem_root))
+    ) {
+      free_root(&mem_root, MYF(0));
+      if (error_num == ER_SPIDER_XA_NOT_PREPARED_NUM)
+        my_message(error_num, ER_SPIDER_XA_NOT_PREPARED_STR, MYF(0));
+      goto error;
+    }
+    free_root(&mem_root, MYF(0));
+
+    /*
+      update
+        mysql.spider_xa
+      set
+        status = 'COMMIT'
+      where
+        format_id = trx->xid.format_id and
+        gtrid_length = trx->xid.gtrid_length and
+        data = trx->xid.data
+    */
+    if (
+      (error_num = spider_update_xa(
+        table_xa, &trx->xid, SPIDER_SYS_XA_COMMIT_STR))
+    )
+      goto error;
+    spider_close_sys_table(thd, table_xa, &open_tables_backup, TRUE);
+    table_xa_opened = FALSE;
+  }
+
+  SPIDER_BACKUP_DASTATUS;
+  if ((conn = spider_tree_first(trx->join_trx_top)))
+  {
+    do {
+      if (conn->bg_search)
+        spider_bg_conn_break(conn, NULL);
+      DBUG_PRINT("info",("spider conn=%p", conn));
+      DBUG_PRINT("info",("spider conn->join_trx=%u", conn->join_trx));
+      if (conn->join_trx)
+      {
+        if ((tmp_error_num = spider_db_xa_commit(conn, &trx->xid)))
+        {
+          if (force_commit == 0 ||
+            (force_commit == 1 && tmp_error_num != ER_XAER_NOTA))
+          {
+            SPIDER_CONN_RESTORE_DASTATUS_AND_RESET_TMP_ERROR_NUM;
+            if (!error_num && tmp_error_num)
+              error_num = tmp_error_num;
+          }
+          spider_sys_log_xa_failed(thd, &trx->xid, conn,
+            SPIDER_SYS_XA_COMMIT_STR, TRUE);
+        }
+        if ((tmp_error_num = spider_end_trx(trx, conn)))
+        {
+          SPIDER_CONN_RESTORE_DASTATUS_AND_RESET_TMP_ERROR_NUM;
+          if (!error_num && tmp_error_num)
+            error_num = tmp_error_num;
+        }
+        conn->join_trx = 0;
+      }
+    } while ((conn = spider_tree_next(conn)));
+    trx->join_trx_top = NULL;
+  }
+  if (error_num)
+    goto error_in_commit;
+
+  if (trx->updated_in_this_trx || spider_param_xa_register_mode(thd) == 0)
+  {
+    /*
+      delete from
+        mysql.spider_xa_member
+      where
+        format_id = xid->format_id and
+        gtrid_length = xid->gtrid_length and
+        data = xid->data
+    */
+    if (
+      !(table_xa_member = spider_open_sys_table(
+        thd, SPIDER_SYS_XA_MEMBER_TABLE_NAME_STR,
+        SPIDER_SYS_XA_MEMBER_TABLE_NAME_LEN, TRUE, &open_tables_backup, TRUE,
+        &error_num))
+    )
+      goto error_open_table;
+    table_xa_member_opened = TRUE;
+    if ((error_num = spider_delete_xa_member(table_xa_member, &trx->xid)))
+      goto error;
+    spider_close_sys_table(thd, table_xa_member, &open_tables_backup, TRUE);
+    table_xa_member_opened = FALSE;
+
+    /*
+      delete from
+        mysql.spider_xa
+      where
+        format_id = xid->format_id and
+        gtrid_length = xid->gtrid_length and
+        data = xid->data
+    */
+    if (
+      !(table_xa = spider_open_sys_table(
+        thd, SPIDER_SYS_XA_TABLE_NAME_STR, SPIDER_SYS_XA_TABLE_NAME_LEN,
+        TRUE, &open_tables_backup, TRUE, &error_num))
+    )
+      goto error_open_table;
+    table_xa_opened = TRUE;
+    if ((error_num = spider_delete_xa(table_xa, &trx->xid)))
+      goto error;
+    spider_close_sys_table(thd, table_xa, &open_tables_backup, TRUE);
+    table_xa_opened = FALSE;
+  }
+  if (trx->internal_xa)
+  {
+    spider_xa_unlock(&trx->internal_xid_state);
+  }
+  DBUG_RETURN(0);
+
+error:
+  if (table_xa_opened)
+    spider_close_sys_table(thd, table_xa, &open_tables_backup, TRUE);
+  if (table_xa_member_opened)
+    spider_close_sys_table(thd, table_xa_member, &open_tables_backup, TRUE);
+error_in_commit:
+error_open_table:
+  if (trx->internal_xa)
+  {
+    spider_xa_unlock(&trx->internal_xid_state);
+  }
+  DBUG_RETURN(error_num);
+}
+
+int spider_internal_xa_rollback(
+  THD* thd,
+  SPIDER_TRX *trx
+) {
+  int error_num = 0, tmp_error_num;
+  TABLE *table_xa, *table_xa_member;
+  char xa_key[MAX_KEY_LENGTH];
+  SPIDER_CONN *conn;
+  uint force_commit = spider_param_force_commit(thd);
+  MEM_ROOT mem_root;
+  SPIDER_Open_tables_backup open_tables_backup;
+  bool server_lost = FALSE;
+  bool table_xa_opened = FALSE;
+  bool table_xa_member_opened = FALSE;
+  DBUG_ENTER("spider_internal_xa_rollback");
+
+  if (
+    trx->trx_xa_prepared &&
+    (
+      trx->updated_in_this_trx ||
+      spider_param_xa_register_mode(thd) == 0
+    )
+  ) {
+    /*
+      select
+        status
+      from
+        mysql.spider_xa
+      where
+        format_id = xid->format_id and
+        gtrid_length = xid->gtrid_length and
+        data = xid->data
+    */
+    if (
+      !(table_xa = spider_open_sys_table(
+        thd, SPIDER_SYS_XA_TABLE_NAME_STR, SPIDER_SYS_XA_TABLE_NAME_LEN,
+        TRUE, &open_tables_backup, TRUE, &error_num))
+    )
+      goto error_open_table;
+    table_xa_opened = TRUE;
+    spider_store_xa_pk(table_xa, &trx->xid);
+    if (
+      (error_num = spider_check_sys_table(table_xa, xa_key))
+    ) {
+      if (error_num != HA_ERR_KEY_NOT_FOUND && error_num != HA_ERR_END_OF_FILE)
+      {
+        table_xa->file->print_error(error_num, MYF(0));
+        goto error;
+      }
+      my_message(ER_SPIDER_XA_NOT_EXISTS_NUM, ER_SPIDER_XA_NOT_EXISTS_STR,
+        MYF(0));
+      error_num = ER_SPIDER_XA_NOT_EXISTS_NUM;
+      goto error;
+    }
+    SPD_INIT_ALLOC_ROOT(&mem_root, 4096, 0, MYF(MY_WME));
+    if (
+      force_commit != 2 &&
+      (error_num = spider_check_sys_xa_status(
+        table_xa,
+        SPIDER_SYS_XA_PREPARED_STR,
+        SPIDER_SYS_XA_ROLLBACK_STR,
+        NULL,
+        ER_SPIDER_XA_NOT_PREPARED_NUM,
+        &mem_root))
+    ) {
+      free_root(&mem_root, MYF(0));
+      if (error_num == ER_SPIDER_XA_NOT_PREPARED_NUM)
+        my_message(error_num, ER_SPIDER_XA_NOT_PREPARED_STR, MYF(0));
+      goto error;
+    }
+    free_root(&mem_root, MYF(0));
+
+    /*
+      update
+        mysql.spider_xa
+      set
+        status = 'COMMIT'
+      where
+        format_id = trx->xid.format_id and
+        gtrid_length = trx->xid.gtrid_length and
+        data = trx->xid.data
+    */
+    if (
+      (error_num = spider_update_xa(
+        table_xa, &trx->xid, SPIDER_SYS_XA_ROLLBACK_STR))
+    )
+      goto error;
+    spider_close_sys_table(thd, table_xa, &open_tables_backup, TRUE);
+    table_xa_opened = FALSE;
+  }
+
+  SPIDER_BACKUP_DASTATUS;
+  if ((conn = spider_tree_first(trx->join_trx_top)))
+  {
+    do {
+      if (conn->bg_search)
+        spider_bg_conn_break(conn, NULL);
+      if (conn->join_trx)
+      {
+        if (conn->disable_xa)
+        {
+          if (conn->table_lock != 3 && !trx->trx_xa_prepared)
+          {
+            if (
+              !conn->server_lost &&
+              (tmp_error_num = spider_db_rollback(conn))
+            ) {
+              SPIDER_CONN_RESTORE_DASTATUS_AND_RESET_TMP_ERROR_NUM;
+              if (!error_num && tmp_error_num)
+                error_num = tmp_error_num;
+            }
+          }
+        } else {
+          if (!conn->server_lost)
+          {
+            if (
+              !trx->trx_xa_prepared &&
+              (tmp_error_num = spider_db_xa_end(conn, &trx->xid))
+            ) {
+              if (
+                force_commit == 0 ||
+                (force_commit == 1 &&
+                  (
+                    tmp_error_num != ER_XAER_NOTA &&
+                    tmp_error_num != ER_XA_RBTIMEOUT &&
+                    tmp_error_num != ER_XA_RBDEADLOCK
+                  )
+                )
+              ) {
+                SPIDER_CONN_RESTORE_DASTATUS_AND_RESET_TMP_ERROR_NUM;
+                if (!error_num && tmp_error_num)
+                  error_num = tmp_error_num;
+              }
+            }
+            if ((tmp_error_num = spider_db_xa_rollback(conn, &trx->xid)))
+            {
+              if (
+                force_commit == 0 ||
+                (force_commit == 1 &&
+                  (
+                    tmp_error_num != ER_XAER_NOTA &&
+                    tmp_error_num != ER_XA_RBTIMEOUT &&
+                    tmp_error_num != ER_XA_RBDEADLOCK
+                  )
+                )
+              ) {
+                SPIDER_CONN_RESTORE_DASTATUS_AND_RESET_TMP_ERROR_NUM;
+                if (!error_num && tmp_error_num)
+                  error_num = tmp_error_num;
+              }
+            }
+          }
+        }
+        if ((tmp_error_num = spider_end_trx(trx, conn)))
+        {
+          SPIDER_CONN_RESTORE_DASTATUS_AND_RESET_TMP_ERROR_NUM;
+          if (!error_num && tmp_error_num)
+            error_num = tmp_error_num;
+        }
+        conn->join_trx = 0;
+        if (conn->server_lost)
+          server_lost = TRUE;
+      }
+    } while ((conn = spider_tree_next(conn)));
+    trx->join_trx_top = NULL;
+  }
+  if (error_num)
+    goto error_in_rollback;
+
+  if (
+    trx->trx_xa_prepared &&
+    !server_lost &&
+    (
+      trx->updated_in_this_trx ||
+      spider_param_xa_register_mode(thd) == 0
+    )
+  ) {
+    /*
+      delete from
+        mysql.spider_xa_member
+      where
+        format_id = xid->format_id and
+        gtrid_length = xid->gtrid_length and
+        data = xid->data
+    */
+    if (
+      !(table_xa_member = spider_open_sys_table(
+        thd, SPIDER_SYS_XA_MEMBER_TABLE_NAME_STR,
+        SPIDER_SYS_XA_MEMBER_TABLE_NAME_LEN, TRUE, &open_tables_backup, TRUE,
+        &error_num))
+    )
+      goto error_open_table;
+    table_xa_member_opened = TRUE;
+    if ((error_num = spider_delete_xa_member(table_xa_member, &trx->xid)))
+      goto error;
+    spider_close_sys_table(thd, table_xa_member, &open_tables_backup, TRUE);
+    table_xa_member_opened = FALSE;
+
+    /*
+      delete from
+        mysql.spider_xa
+      where
+        format_id = xid->format_id and
+        gtrid_length = xid->gtrid_length and
+        data = xid->data
+    */
+    if (
+      !(table_xa = spider_open_sys_table(
+        thd, SPIDER_SYS_XA_TABLE_NAME_STR, SPIDER_SYS_XA_TABLE_NAME_LEN,
+        TRUE, &open_tables_backup, TRUE, &error_num))
+    )
+      goto error_open_table;
+    table_xa_opened = TRUE;
+    if ((error_num = spider_delete_xa(table_xa, &trx->xid)))
+      goto error;
+    spider_close_sys_table(thd, table_xa, &open_tables_backup, TRUE);
+    table_xa_opened = FALSE;
+  }
+  if (trx->internal_xa)
+  {
+    spider_xa_unlock(&trx->internal_xid_state);
+  }
+  DBUG_RETURN(0);
+
+error:
+  if (table_xa_opened)
+    spider_close_sys_table(thd, table_xa, &open_tables_backup, TRUE);
+  if (table_xa_member_opened)
+    spider_close_sys_table(thd, table_xa_member, &open_tables_backup, TRUE);
+error_in_rollback:
+error_open_table:
+  if (trx->internal_xa)
+  {
+    spider_xa_unlock(&trx->internal_xid_state);
+  }
+  DBUG_RETURN(error_num);
+}
+
+int spider_internal_xa_prepare(
+  THD* thd,
+  SPIDER_TRX *trx,
+  TABLE *table_xa,
+  TABLE *table_xa_member,
+  bool internal_xa
+) {
+  int error_num;
+  SPIDER_CONN *conn;
+  uint force_commit = spider_param_force_commit(thd);
+  SPIDER_Open_tables_backup open_tables_backup;
+  bool table_xa_opened = FALSE;
+  bool table_xa_member_opened = FALSE;
+  DBUG_ENTER("spider_internal_xa_prepare");
+  if (trx->updated_in_this_trx || spider_param_xa_register_mode(thd) == 0)
+  {
+    /*
+      insert into mysql.spider_xa
+        (format_id, gtrid_length, bqual_length, data, status) values
+        (trx->xid.format_id, trx->xid.gtrid_length, trx->xid.bqual_length,
+        trx->xid.data, 'NOT YET')
+    */
+    if (
+      !(table_xa = spider_open_sys_table(
+        thd, SPIDER_SYS_XA_TABLE_NAME_STR, SPIDER_SYS_XA_TABLE_NAME_LEN,
+        TRUE, &open_tables_backup, TRUE, &error_num))
+    )
+      goto error_open_table;
+    table_xa_opened = TRUE;
+    if (
+      (error_num = spider_insert_xa(
+        table_xa, &trx->xid, SPIDER_SYS_XA_NOT_YET_STR))
+    )
+      goto error;
+    spider_close_sys_table(thd, table_xa, &open_tables_backup, TRUE);
+    table_xa_opened = FALSE;
+
+    if (
+      !(table_xa_member = spider_open_sys_table(
+        thd, SPIDER_SYS_XA_MEMBER_TABLE_NAME_STR,
+        SPIDER_SYS_XA_MEMBER_TABLE_NAME_LEN, TRUE, &open_tables_backup, TRUE,
+        &error_num))
+    )
+      goto error_open_table;
+    table_xa_member_opened = TRUE;
+  }
+  SPIDER_BACKUP_DASTATUS;
+  if ((conn = spider_tree_first(trx->join_trx_top)))
+  {
+    do {
+      if (conn->bg_search)
+        spider_bg_conn_break(conn, NULL);
+      if (conn->disable_xa)
+      {
+        if (conn->table_lock != 3)
+        {
+          if ((error_num = spider_db_rollback(conn)))
+          {
+            SPIDER_CONN_RESTORE_DASTATUS_AND_RESET_ERROR_NUM;
+            if (error_num)
+              goto error;
+          }
+        }
+        if ((error_num = spider_end_trx(trx, conn)))
+        {
+          SPIDER_CONN_RESTORE_DASTATUS_AND_RESET_ERROR_NUM;
+          if (error_num)
+            goto error;
+        }
+        conn->join_trx = 0;
+      } else {
+        if (trx->updated_in_this_trx || spider_param_xa_register_mode(thd) == 0)
+        {
+          /*
+            insert into mysql.spider_xa_member
+              (format_id, gtrid_length, bqual_length, data,
+              scheme, host, port, socket, username, password) values
+              (trx->xid.format_id, trx->xid.gtrid_length,
+              trx->xid.bqual_length, trx->xid.data,
+              conn->tgt_wrapper,
+              conn->tgt_host,
+              conn->tgt_port,
+              conn->tgt_socket,
+              conn->tgt_username,
+              conn->tgt_password)
+          */
+          if (
+            (error_num = spider_insert_xa_member(
+              table_xa_member, &trx->xid, conn))
+          ) {
+            SPIDER_CONN_RESTORE_DASTATUS_AND_RESET_ERROR_NUM;
+            if (error_num)
+              goto error;
+          }
+        }
+
+        if ((error_num = spider_db_xa_end(conn, &trx->xid)))
+        {
+          if (force_commit == 0 ||
+            (force_commit == 1 && error_num != ER_XAER_NOTA))
+          {
+            SPIDER_CONN_RESTORE_DASTATUS_AND_RESET_ERROR_NUM;
+            if (error_num)
+              goto error;
+          }
+        }
+        if ((error_num = spider_db_xa_prepare(conn, &trx->xid)))
+        {
+          if (force_commit == 0 ||
+            (force_commit == 1 && error_num != ER_XAER_NOTA))
+          {
+            SPIDER_CONN_RESTORE_DASTATUS_AND_RESET_ERROR_NUM;
+            if (error_num)
+              goto error;
+          }
+        }
+/*
+        if (!internal_xa)
+        {
+          if ((error_num = spider_end_trx(trx, conn)))
+            DBUG_RETURN(error_num);
+          conn->join_trx = 0;
+        }
+*/
+      }
+    } while ((conn = spider_tree_next(conn)));
+/*
+    if (!internal_xa)
+      trx->join_trx_top = NULL;
+*/
+  }
+  if (trx->updated_in_this_trx || spider_param_xa_register_mode(thd) == 0)
+  {
+    spider_close_sys_table(thd, table_xa_member, &open_tables_backup, TRUE);
+    table_xa_member_opened = FALSE;
+
+    /*
+      update
+        mysql.spider_xa
+      set
+        status = 'PREPARED'
+      where
+        format_id = trx->xid.format_id and
+        gtrid_length = trx->xid.gtrid_length and
+        data = trx->xid.data
+    */
+    if (
+      !(table_xa = spider_open_sys_table(
+        thd, SPIDER_SYS_XA_TABLE_NAME_STR, SPIDER_SYS_XA_TABLE_NAME_LEN,
+        TRUE, &open_tables_backup, TRUE, &error_num))
+    )
+      goto error_open_table;
+    table_xa_opened = TRUE;
+    if (
+      (error_num = spider_update_xa(
+        table_xa, &trx->xid, SPIDER_SYS_XA_PREPARED_STR))
+    )
+      goto error;
+    spider_close_sys_table(thd, table_xa, &open_tables_backup, TRUE);
+    table_xa_opened = FALSE;
+  }
+  DBUG_RETURN(0);
+
+error:
+  if (table_xa_opened)
+    spider_close_sys_table(thd, table_xa, &open_tables_backup, TRUE);
+  if (table_xa_member_opened)
+    spider_close_sys_table(thd, table_xa_member, &open_tables_backup, TRUE);
+error_open_table:
+  DBUG_RETURN(error_num);
+}
+
+int spider_internal_xa_recover(
+  THD* thd,
+  XID* xid_list,
+  uint len
+) {
+  TABLE *table_xa;
+  int cnt = 0;
+  char xa_key[MAX_KEY_LENGTH];
+  MEM_ROOT mem_root;
+  SPIDER_Open_tables_backup open_tables_backup;
+  DBUG_ENTER("spider_internal_xa_recover");
+  /*
+    select
+      format_id,
+      gtrid_length,
+      bqual_length,
+      data
+    from
+      mysql.spider_xa
+    where
+      status = 'PREPARED'
+  */
+  if (
+    !(table_xa = spider_open_sys_table(
+      thd, SPIDER_SYS_XA_TABLE_NAME_STR, SPIDER_SYS_XA_TABLE_NAME_LEN,
+      FALSE, &open_tables_backup, TRUE, &my_errno))
+  )
+    goto error_open_table;
+  spider_store_xa_status(table_xa, SPIDER_SYS_XA_PREPARED_STR);
+  if (
+    (my_errno = spider_get_sys_table_by_idx(table_xa, xa_key, 1,
+    SPIDER_SYS_XA_IDX1_COL_CNT))
+  ) {
+    spider_sys_index_end(table_xa);
+    if (my_errno != HA_ERR_KEY_NOT_FOUND && my_errno != HA_ERR_END_OF_FILE)
+    {
+      table_xa->file->print_error(my_errno, MYF(0));
+      goto error;
+    }
+    goto error;
+  }
+
+  SPD_INIT_ALLOC_ROOT(&mem_root, 4096, 0, MYF(MY_WME));
+  do {
+    spider_get_sys_xid(table_xa, &xid_list[cnt], &mem_root);
+    cnt++;
+    my_errno = spider_sys_index_next_same(table_xa, xa_key);
+  } while (my_errno == 0 && cnt < (int) len);
+  free_root(&mem_root, MYF(0));
+  spider_sys_index_end(table_xa);
+  spider_close_sys_table(thd, table_xa, &open_tables_backup, TRUE);
+  DBUG_RETURN(cnt);
+
+error:
+  spider_close_sys_table(thd, table_xa, &open_tables_backup, TRUE);
+error_open_table:
+  DBUG_RETURN(0);
+}
+
+int spider_initinal_xa_recover(
+  XID* xid_list,
+  uint len
+) {
+  int error_num;
+  THD *thd;
+  TABLE *table_xa;
+  READ_RECORD *read_record;
+  SPIDER_Open_tables_backup open_tables_backup;
+  int cnt = 0;
+  MEM_ROOT mem_root;
+  DBUG_ENTER("spider_initinal_xa_recover");
+  if (!(read_record = new READ_RECORD))
+  {
+    error_num = HA_ERR_OUT_OF_MEM;
+    goto error_create_read_record;
+  }
+
+  if (!(thd = spider_create_tmp_thd()))
+  {
+    error_num = HA_ERR_OUT_OF_MEM;
+    goto error_create_thd;
+  }
+
+  /*
+    select
+      format_id,
+      gtrid_length,
+      bqual_length,
+      data
+    from
+      mysql.spider_xa
+  */
+  if (
+    !(table_xa = spider_open_sys_table(
+      thd, SPIDER_SYS_XA_TABLE_NAME_STR, SPIDER_SYS_XA_TABLE_NAME_LEN,
+      FALSE, &open_tables_backup, TRUE, &error_num))
+  )
+    goto error_open_table;
+  SPIDER_init_read_record(read_record, thd, table_xa, NULL, NULL, TRUE,
+    FALSE, FALSE);
+  SPD_INIT_ALLOC_ROOT(&mem_root, 4096, 0, MYF(MY_WME));
+  while ((!(read_record->SPIDER_read_record_read_record(read_record))) &&
+    cnt < (int) len)
+  {
+    spider_get_sys_xid(table_xa, &xid_list[cnt], &mem_root);
+    cnt++;
+  }
+  free_root(&mem_root, MYF(0));
+
+  end_read_record(read_record);
+  spider_close_sys_table(thd, table_xa, &open_tables_backup, TRUE);
+  table_xa = NULL;
+  spider_free_tmp_thd(thd);
+  thd = NULL;
+  delete read_record;
+  read_record = NULL;
+  DBUG_RETURN(cnt);
+
+error_open_table:
+  spider_free_tmp_thd(thd);
+  thd = NULL;
+error_create_thd:
+  delete read_record;
+  read_record = NULL;
+error_create_read_record:
+  DBUG_RETURN(0);
+}
+
+int spider_internal_xa_commit_by_xid(
+  THD* thd,
+  SPIDER_TRX *trx,
+  XID* xid
+) {
+  TABLE *table_xa, *table_xa_member = 0;
+  int error_num;
+  char xa_key[MAX_KEY_LENGTH];
+  char xa_member_key[MAX_KEY_LENGTH];
+  SPIDER_SHARE tmp_share;
+  char *tmp_connect_info[SPIDER_TMP_SHARE_CHAR_PTR_COUNT];
+  uint tmp_connect_info_length[SPIDER_TMP_SHARE_UINT_COUNT];
+  long tmp_long[SPIDER_TMP_SHARE_LONG_COUNT];
+  longlong tmp_longlong[SPIDER_TMP_SHARE_LONGLONG_COUNT];
+  SPIDER_CONN *conn;
+  uint force_commit = spider_param_force_commit(thd);
+  MEM_ROOT mem_root;
+  SPIDER_Open_tables_backup open_tables_backup;
+  bool table_xa_opened = FALSE;
+  bool table_xa_member_opened = FALSE;
+  DBUG_ENTER("spider_internal_xa_commit_by_xid");
+  /*
+    select
+      status
+    from
+      mysql.spider_xa
+    where
+      format_id = xid->format_id and
+      gtrid_length = xid->gtrid_length and
+      data = xid->data
+  */
+  if (
+    !(table_xa = spider_open_sys_table(
+      thd, SPIDER_SYS_XA_TABLE_NAME_STR, SPIDER_SYS_XA_TABLE_NAME_LEN,
+      TRUE, &open_tables_backup, TRUE, &error_num))
+  )
+    goto error_open_table;
+  table_xa_opened = TRUE;
+  spider_store_xa_pk(table_xa, xid);
+  if (
+    (error_num = spider_check_sys_table(table_xa, xa_key))
+  ) {
+    if (error_num != HA_ERR_KEY_NOT_FOUND && error_num != HA_ERR_END_OF_FILE)
+    {
+      table_xa->file->print_error(error_num, MYF(0));
+      goto error;
+    }
+    my_message(ER_SPIDER_XA_NOT_EXISTS_NUM, ER_SPIDER_XA_NOT_EXISTS_STR,
+      MYF(0));
+    error_num = ER_SPIDER_XA_NOT_EXISTS_NUM;
+    goto error;
+  }
+  SPD_INIT_ALLOC_ROOT(&mem_root, 4096, 0, MYF(MY_WME));
+  if (
+    force_commit != 2 &&
+    (error_num = spider_check_sys_xa_status(
+      table_xa,
+      SPIDER_SYS_XA_PREPARED_STR,
+      SPIDER_SYS_XA_COMMIT_STR,
+      NULL,
+      ER_SPIDER_XA_NOT_PREPARED_NUM,
+      &mem_root))
+  ) {
+    free_root(&mem_root, MYF(0));
+    if (error_num == ER_SPIDER_XA_NOT_PREPARED_NUM)
+      my_message(error_num, ER_SPIDER_XA_NOT_PREPARED_STR, MYF(0));
+    goto error;
+  }
+
+  /*
+    update
+      mysql.spider_xa
+    set
+      status = 'COMMIT'
+    where
+      format_id = trx->xid.format_id and
+      gtrid_length = trx->xid.gtrid_length and
+      data = trx->xid.data
+  */
+  if (
+    (error_num = spider_update_xa(
+      table_xa, xid, SPIDER_SYS_XA_COMMIT_STR))
+  ) {
+    free_root(&mem_root, MYF(0));
+    goto error;
+  }
+  spider_close_sys_table(thd, table_xa, &open_tables_backup, TRUE);
+  table_xa_opened = FALSE;
+
+  /*
+    select
+      scheme tmp_share.tgt_wrappers,
+      host tmp_share.tgt_hosts,
+      port tmp_share.tgt_ports,
+      socket tmp_share.tgt_sockets,
+      username tmp_share.tgt_usernames,
+      password tmp_share.tgt_passwords
+    from
+      mysql.spider_xa_member
+    where
+      format_id = xid->format_id and
+      gtrid_length = xid->gtrid_length and
+      data = xid->data
+  */
+  if (
+    !(table_xa_member = spider_open_sys_table(
+      thd, SPIDER_SYS_XA_MEMBER_TABLE_NAME_STR,
+      SPIDER_SYS_XA_MEMBER_TABLE_NAME_LEN, TRUE, &open_tables_backup, TRUE,
+      &error_num))
+  ) {
+    free_root(&mem_root, MYF(0));
+    goto error_open_table;
+  }
+  table_xa_member_opened = TRUE;
+  spider_store_xa_pk(table_xa_member, xid);
+  if (
+    (error_num = spider_get_sys_table_by_idx(table_xa_member, xa_member_key, 0,
+    SPIDER_SYS_XA_PK_COL_CNT))
+  ) {
+    if (error_num != HA_ERR_KEY_NOT_FOUND && error_num != HA_ERR_END_OF_FILE)
+    {
+      free_root(&mem_root, MYF(0));
+      table_xa_member->file->print_error(error_num, MYF(0));
+      goto error;
+    } else {
+      free_root(&mem_root, MYF(0));
+      spider_close_sys_table(thd, table_xa_member, &open_tables_backup, TRUE);
+      table_xa_member_opened = FALSE;
+      goto xa_delete;
+    }
+  }
+
+  memset((void*)&tmp_share, 0, sizeof(SPIDER_SHARE));
+  memset(&tmp_connect_info, 0,
+    sizeof(char *) * SPIDER_TMP_SHARE_CHAR_PTR_COUNT);
+  spider_set_tmp_share_pointer(&tmp_share, tmp_connect_info,
+    tmp_connect_info_length, tmp_long, tmp_longlong);
+  do {
+    SPIDER_BACKUP_DASTATUS;
+    spider_get_sys_server_info(table_xa_member, &tmp_share, 0, &mem_root);
+    if ((error_num = spider_create_conn_keys(&tmp_share)))
+    {
+      spider_sys_index_end(table_xa_member);
+      free_root(&mem_root, MYF(0));
+      goto error;
+    }
+
+    if (
+      !(conn = spider_get_conn(
+        &tmp_share, 0, tmp_share.conn_keys[0], trx, NULL, FALSE, FALSE,
+        SPIDER_CONN_KIND_MYSQL, &error_num)) &&
+      (force_commit == 0 ||
+        (force_commit == 1 && error_num != ER_XAER_NOTA))
+    ) {
+      spider_sys_index_end(table_xa_member);
+      spider_free_tmp_share_alloc(&tmp_share);
+      free_root(&mem_root, MYF(0));
+      goto error;
+    }
+    conn->error_mode &= spider_param_error_read_mode(thd, 0);
+    conn->error_mode &= spider_param_error_write_mode(thd, 0);
+    if (
+      (error_num = spider_db_xa_commit(conn, xid)) &&
+      (force_commit == 0 ||
+        (force_commit == 1 && error_num != ER_XAER_NOTA))
+    ) {
+      SPIDER_CONN_RESTORE_DASTATUS_AND_RESET_ERROR_NUM;
+      if (error_num)
+      {
+        spider_sys_index_end(table_xa_member);
+        spider_free_tmp_share_alloc(&tmp_share);
+        free_root(&mem_root, MYF(0));
+        goto error;
+      }
+    }
+    spider_free_tmp_share_alloc(&tmp_share);
+    error_num = spider_sys_index_next_same(table_xa_member, xa_member_key);
+  } while (error_num == 0);
+  if ((error_num = spider_sys_index_end(table_xa_member)))
+  {
+    free_root(&mem_root, MYF(0));
+    goto error;
+  }
+  free_root(&mem_root, MYF(0));
+  spider_reuse_trx_ha(trx);
+  spider_free_trx_conn(trx, FALSE);
+
+  /*
+    delete from
+      mysql.spider_xa_member
+    where
+      format_id = xid->format_id and
+      gtrid_length = xid->gtrid_length and
+      data = xid->data
+  */
+  if ((error_num = spider_delete_xa_member(table_xa_member, xid)))
+    goto error;
+  spider_close_sys_table(thd, table_xa_member, &open_tables_backup, TRUE);
+  table_xa_member_opened = FALSE;
+
+xa_delete:
+  /*
+    delete from
+      mysql.spider_xa
+    where
+      format_id = xid->format_id and
+      gtrid_length = xid->gtrid_length and
+      data = xid->data
+  */
+  if (
+    !(table_xa = spider_open_sys_table(
+      thd, SPIDER_SYS_XA_TABLE_NAME_STR, SPIDER_SYS_XA_TABLE_NAME_LEN,
+      TRUE, &open_tables_backup, TRUE, &error_num))
+  )
+    goto error_open_table;
+  table_xa_opened = TRUE;
+  if ((error_num = spider_delete_xa(table_xa, xid)))
+    goto error;
+  spider_close_sys_table(thd, table_xa, &open_tables_backup, TRUE);
+  table_xa_opened = FALSE;
+  DBUG_RETURN(0);
+
+error:
+  if (table_xa_opened)
+    spider_close_sys_table(thd, table_xa, &open_tables_backup, TRUE);
+  if (table_xa_member_opened)
+    spider_close_sys_table(thd, table_xa_member, &open_tables_backup, TRUE);
+error_open_table:
+  DBUG_RETURN(error_num);
+}
+
+int spider_internal_xa_rollback_by_xid(
+  THD* thd,
+  SPIDER_TRX *trx,
+  XID* xid
+) {
+  TABLE *table_xa, *table_xa_member = 0;
+  int error_num;
+  char xa_key[MAX_KEY_LENGTH];
+  char xa_member_key[MAX_KEY_LENGTH];
+  SPIDER_SHARE tmp_share;
+  char *tmp_connect_info[SPIDER_TMP_SHARE_CHAR_PTR_COUNT];
+  uint tmp_connect_info_length[SPIDER_TMP_SHARE_UINT_COUNT];
+  long tmp_long[SPIDER_TMP_SHARE_LONG_COUNT];
+  longlong tmp_longlong[SPIDER_TMP_SHARE_LONGLONG_COUNT];
+  SPIDER_CONN *conn;
+  uint force_commit = spider_param_force_commit(thd);
+  MEM_ROOT mem_root;
+  SPIDER_Open_tables_backup open_tables_backup;
+  bool table_xa_opened = FALSE;
+  bool table_xa_member_opened = FALSE;
+  DBUG_ENTER("spider_internal_xa_rollback_by_xid");
+  /*
+    select
+      status
+    from
+      mysql.spider_xa
+    where
+      format_id = xid->format_id and
+      gtrid_length = xid->gtrid_length and
+      data = xid->data
+  */
+  if (
+    !(table_xa = spider_open_sys_table(
+      thd, SPIDER_SYS_XA_TABLE_NAME_STR, SPIDER_SYS_XA_TABLE_NAME_LEN,
+      TRUE, &open_tables_backup, TRUE, &error_num))
+  )
+    goto error_open_table;
+  table_xa_opened = TRUE;
+  spider_store_xa_pk(table_xa, xid);
+  if (
+    (error_num = spider_check_sys_table(table_xa, xa_key))
+  ) {
+    if (error_num != HA_ERR_KEY_NOT_FOUND && error_num != HA_ERR_END_OF_FILE)
+    {
+      table_xa->file->print_error(error_num, MYF(0));
+      goto error;
+    }
+    error_num = ER_SPIDER_XA_NOT_EXISTS_NUM;
+    goto error;
+  }
+  SPD_INIT_ALLOC_ROOT(&mem_root, 4096, 0, MYF(MY_WME));
+  if (
+    force_commit != 2 &&
+    (error_num = spider_check_sys_xa_status(
+      table_xa,
+      SPIDER_SYS_XA_NOT_YET_STR,
+      SPIDER_SYS_XA_PREPARED_STR,
+      SPIDER_SYS_XA_ROLLBACK_STR,
+      ER_SPIDER_XA_PREPARED_NUM,
+      &mem_root))
+  ) {
+    free_root(&mem_root, MYF(0));
+    if (error_num == ER_SPIDER_XA_PREPARED_NUM)
+      my_message(error_num, ER_SPIDER_XA_PREPARED_STR, MYF(0));
+    goto error;
+  }
+
+  /*
+    update
+      mysql.spider_xa
+    set
+      status = 'ROLLBACK'
+    where
+      format_id = trx->xid.format_id and
+      gtrid_length = trx->xid.gtrid_length and
+      data = trx->xid.data
+  */
+  if (
+    (error_num = spider_update_xa(
+      table_xa, xid, SPIDER_SYS_XA_ROLLBACK_STR))
+  ) {
+    free_root(&mem_root, MYF(0));
+    goto error;
+  }
+  spider_close_sys_table(thd, table_xa, &open_tables_backup, TRUE);
+  table_xa_opened = FALSE;
+
+  /*
+    select
+      scheme tmp_share.tgt_wrappers,
+      host tmp_share.tgt_hosts,
+      port tmp_share.tgt_ports,
+      socket tmp_share.tgt_sockets,
+      username tmp_share.tgt_usernames,
+      password tmp_share.tgt_passwords
+    from
+      mysql.spider_xa_member
+    where
+      format_id = xid->format_id and
+      gtrid_length = xid->gtrid_length and
+      data = xid->data
+  */
+  if (
+    !(table_xa_member = spider_open_sys_table(
+      thd, SPIDER_SYS_XA_MEMBER_TABLE_NAME_STR,
+      SPIDER_SYS_XA_MEMBER_TABLE_NAME_LEN, TRUE, &open_tables_backup, TRUE,
+      &error_num))
+  ) {
+    free_root(&mem_root, MYF(0));
+    goto error_open_table;
+  }
+  table_xa_member_opened = TRUE;
+  spider_store_xa_pk(table_xa_member, xid);
+  if (
+    (error_num = spider_get_sys_table_by_idx(table_xa_member, xa_member_key, 0,
+    SPIDER_SYS_XA_PK_COL_CNT))
+  ) {
+    if (error_num != HA_ERR_KEY_NOT_FOUND && error_num != HA_ERR_END_OF_FILE)
+    {
+      free_root(&mem_root, MYF(0));
+      table_xa_member->file->print_error(error_num, MYF(0));
+      goto error;
+    } else {
+      free_root(&mem_root, MYF(0));
+      spider_close_sys_table(thd, table_xa_member, &open_tables_backup, TRUE);
+      table_xa_member_opened = FALSE;
+      goto xa_delete;
+    }
+  }
+
+  memset((void*)&tmp_share, 0, sizeof(SPIDER_SHARE));
+  memset(&tmp_connect_info, 0,
+    sizeof(char *) * SPIDER_TMP_SHARE_CHAR_PTR_COUNT);
+  spider_set_tmp_share_pointer(&tmp_share, tmp_connect_info,
+    tmp_connect_info_length, tmp_long, tmp_longlong);
+  do {
+    SPIDER_BACKUP_DASTATUS;
+    spider_get_sys_server_info(table_xa_member, &tmp_share, 0, &mem_root);
+    if ((error_num = spider_create_conn_keys(&tmp_share)))
+    {
+      spider_sys_index_end(table_xa_member);
+      free_root(&mem_root, MYF(0));
+      goto error;
+    }
+
+    if (
+      !(conn = spider_get_conn(
+        &tmp_share, 0, tmp_share.conn_keys[0], trx, NULL, FALSE, FALSE,
+        SPIDER_CONN_KIND_MYSQL, &error_num)) &&
+      (force_commit == 0 ||
+        (force_commit == 1 && error_num != ER_XAER_NOTA))
+    ) {
+      spider_sys_index_end(table_xa_member);
+      spider_free_tmp_share_alloc(&tmp_share);
+      free_root(&mem_root, MYF(0));
+      goto error;
+    }
+    conn->error_mode &= spider_param_error_read_mode(thd, 0);
+    conn->error_mode &= spider_param_error_write_mode(thd, 0);
+    if (
+      (error_num = spider_db_xa_rollback(conn, xid)) &&
+      (force_commit == 0 ||
+        (force_commit == 1 && error_num != ER_XAER_NOTA))
+    ) {
+      SPIDER_CONN_RESTORE_DASTATUS_AND_RESET_ERROR_NUM;
+      if (error_num)
+      {
+        spider_sys_index_end(table_xa_member);
+        spider_free_tmp_share_alloc(&tmp_share);
+        free_root(&mem_root, MYF(0));
+        goto error;
+      }
+    }
+    spider_free_tmp_share_alloc(&tmp_share);
+    error_num = spider_sys_index_next_same(table_xa_member, xa_member_key);
+  } while (error_num == 0);
+  if ((error_num = spider_sys_index_end(table_xa_member)))
+  {
+    free_root(&mem_root, MYF(0));
+    goto error;
+  }
+  free_root(&mem_root, MYF(0));
+  spider_reuse_trx_ha(trx);
+  spider_free_trx_conn(trx, FALSE);
+
+  /*
+    delete from
+      mysql.spider_xa_member
+    where
+      format_id = xid->format_id and
+      gtrid_length = xid->gtrid_length and
+      data = xid->data
+  */
+  if ((error_num = spider_delete_xa_member(table_xa_member, xid)))
+    goto error;
+  spider_close_sys_table(thd, table_xa_member, &open_tables_backup, TRUE);
+  table_xa_member_opened = FALSE;
+
+xa_delete:
+  /*
+    delete from
+      mysql.spider_xa
+    where
+      format_id = xid->format_id and
+      gtrid_length = xid->gtrid_length and
+      data = xid->data
+  */
+  if (
+    !(table_xa = spider_open_sys_table(
+      thd, SPIDER_SYS_XA_TABLE_NAME_STR, SPIDER_SYS_XA_TABLE_NAME_LEN,
+      TRUE, &open_tables_backup, TRUE, &error_num))
+  )
+    goto error_open_table;
+  table_xa_opened = TRUE;
+  if ((error_num = spider_delete_xa(table_xa, xid)))
+    goto error;
+  spider_close_sys_table(thd, table_xa, &open_tables_backup, TRUE);
+  table_xa_opened = FALSE;
+  DBUG_RETURN(0);
+
+error:
+  if (table_xa_opened)
+    spider_close_sys_table(thd, table_xa, &open_tables_backup, TRUE);
+  if (table_xa_member_opened)
+    spider_close_sys_table(thd, table_xa_member, &open_tables_backup, TRUE);
+error_open_table:
+  DBUG_RETURN(error_num);
+}
+
+int spider_start_consistent_snapshot(
+  handlerton *hton,
+  THD* thd
+) {
+  int error_num;
+  SPIDER_TRX *trx;
+  DBUG_ENTER("spider_start_consistent_snapshot");
+
+  if (!(trx = spider_get_trx(thd, TRUE, &error_num)))
+    DBUG_RETURN(error_num);
+  if (spider_param_use_consistent_snapshot(trx->thd))
+  {
+    if (spider_param_internal_xa(trx->thd) &&
+      spider_param_internal_xa_snapshot(trx->thd) == 1)
+    {
+      error_num = ER_SPIDER_CANT_USE_BOTH_INNER_XA_AND_SNAPSHOT_NUM;
+      my_message(error_num, ER_SPIDER_CANT_USE_BOTH_INNER_XA_AND_SNAPSHOT_STR,
+        MYF(0));
+      goto error;
+    } else {
+      trx->trx_consistent_snapshot = TRUE;
+      trx->use_consistent_snapshot = TRUE;
+      trx->internal_xa_snapshot = spider_param_internal_xa_snapshot(trx->thd);
+      trans_register_ha(trx->thd, FALSE, spider_hton_ptr, 0);
+      trans_register_ha(trx->thd, TRUE, spider_hton_ptr, 0);
+      if (spider_param_use_all_conns_snapshot(trx->thd))
+      {
+        trx->internal_xa = FALSE;
+        if ((error_num = spider_open_all_tables(trx, TRUE)))
+          goto error_open_all_tables;
+        if (
+          spider_param_use_snapshot_with_flush_tables(trx->thd) == 1 &&
+          (error_num = spider_trx_all_flush_tables(trx))
+        )
+          goto error_trx_all_flush_tables;
+        if (spider_param_use_snapshot_with_flush_tables(trx->thd) == 2)
+        {
+          if ((error_num = spider_trx_another_lock_tables(trx)))
+            goto error_trx_another_lock_tables;
+          if ((error_num = spider_trx_another_flush_tables(trx)))
+            goto error_trx_another_flush_tables;
+        }
+        if ((error_num = spider_trx_all_start_trx(trx)))
+          goto error_trx_all_start_trx;
+        if (spider_param_use_snapshot_with_flush_tables(trx->thd) == 1)
+        {
+          if (
+            spider_param_use_flash_logs(trx->thd) &&
+            (error_num = spider_trx_all_flush_logs(trx))
+          )
+            goto error_trx_all_flush_logs;
+          if ((error_num = spider_trx_all_unlock_tables(trx)))
+            goto error_trx_all_unlock_tables;
+        }
+        if (spider_param_use_snapshot_with_flush_tables(trx->thd) == 2)
+        {
+          if (
+            spider_param_use_flash_logs(trx->thd) &&
+            (error_num = spider_trx_all_flush_logs(trx))
+          )
+            goto error_trx_all_flush_logs2;
+          if ((error_num = spider_free_trx_another_conn(trx, TRUE)))
+            goto error_free_trx_another_conn;
+        }
+      } else
+        trx->internal_xa = spider_param_internal_xa(trx->thd);
+    }
+  }
+
+  DBUG_RETURN(0);
+
+error_trx_all_flush_logs:
+error_trx_all_start_trx:
+error_trx_another_flush_tables:
+error_trx_another_lock_tables:
+error_trx_all_flush_tables:
+  if (spider_param_use_snapshot_with_flush_tables(trx->thd) == 1)
+    spider_trx_all_unlock_tables(trx);
+error_trx_all_flush_logs2:
+error_trx_all_unlock_tables:
+error_open_all_tables:
+  if (spider_param_use_snapshot_with_flush_tables(trx->thd) == 2)
+    spider_free_trx_another_conn(trx, TRUE);
+error_free_trx_another_conn:
+error:
+  DBUG_RETURN(error_num);
+}
+
+int spider_commit(
+  handlerton *hton,
+  THD *thd,
+  bool all
+) {
+  SPIDER_TRX *trx;
+  TABLE *table_xa = NULL;
+  TABLE *table_xa_member = NULL;
+  int error_num = 0;
+  SPIDER_CONN *conn;
+  DBUG_ENTER("spider_commit");
+
+  if (!(trx = (SPIDER_TRX*) thd_get_ha_data(thd, spider_hton_ptr)))
+    DBUG_RETURN(0); /* transaction is not started */
+
+#ifdef HA_CAN_BULK_ACCESS
+  DBUG_PRINT("info",("spider trx->bulk_access_conn_first=%p",
+    trx->bulk_access_conn_first));
+  trx->bulk_access_conn_first = NULL;
+#endif
+
+  if (all || (!thd_test_options(thd, OPTION_NOT_AUTOCOMMIT | OPTION_BEGIN)))
+  {
+    if (trx->trx_start)
+    {
+      if (trx->trx_xa)
+      {
+        if (trx->internal_xa && !trx->trx_xa_prepared)
+        {
+          if (
+            (error_num = spider_internal_xa_prepare(
+              thd, trx, table_xa, table_xa_member, TRUE))
+          ) {
+/*
+            if (!thd_test_options(thd, OPTION_NOT_AUTOCOMMIT | OPTION_BEGIN))
+            {
+*/
+              /* rollback for semi_trx */
+              spider_rollback(hton, thd, all);
+/*
+            }
+*/
+            DBUG_RETURN(error_num);
+          }
+          trx->trx_xa_prepared = TRUE;
+        }
+        int tmp_error_num;
+        if (
+          (tmp_error_num = spider_internal_xa_commit(
+            thd, trx, &trx->xid, table_xa, table_xa_member))
+        ) {
+          if (tmp_error_num)
+            error_num = tmp_error_num;
+        }
+        trx->trx_xa = FALSE;
+        trx->join_trx_top = NULL;
+      } else {
+        if ((conn = spider_tree_first(trx->join_trx_top)))
+        {
+          SPIDER_BACKUP_DASTATUS;
+          int tmp_error_num;
+          do {
+            if (
+              (conn->autocommit != 1 || conn->trx_start) &&
+              (tmp_error_num = spider_db_commit(conn))
+            ) {
+              SPIDER_CONN_RESTORE_DASTATUS_AND_RESET_TMP_ERROR_NUM;
+              if (tmp_error_num)
+                error_num = tmp_error_num;
+            }
+            if ((tmp_error_num = spider_end_trx(trx, conn)))
+            {
+              SPIDER_CONN_RESTORE_DASTATUS_AND_RESET_TMP_ERROR_NUM;
+              if (tmp_error_num)
+                error_num = tmp_error_num;
+            }
+            conn->join_trx = 0;
+          } while ((conn = spider_tree_next(conn)));
+          trx->join_trx_top = NULL;
+        }
+      }
+      trx->trx_start = FALSE;
+      trx->updated_in_this_trx = FALSE;
+      DBUG_PRINT("info",("spider trx->trx_start=FALSE"));
+      DBUG_PRINT("info",("spider trx->updated_in_this_trx=FALSE"));
+    }
+    spider_reuse_trx_ha(trx);
+    spider_free_trx_conn(trx, FALSE);
+    trx->trx_consistent_snapshot = FALSE;
+  }
+  spider_merge_mem_calc(trx, FALSE);
+  DBUG_RETURN(error_num);
+}
+
+int spider_rollback(
+  handlerton *hton,
+  THD *thd,
+  bool all
+) {
+  SPIDER_TRX *trx;
+  int error_num = 0;
+  SPIDER_CONN *conn;
+  DBUG_ENTER("spider_rollback");
+
+  if (!(trx = (SPIDER_TRX*) thd_get_ha_data(thd, spider_hton_ptr)))
+    DBUG_RETURN(0); /* transaction is not started */
+
+#ifdef HA_CAN_BULK_ACCESS
+  DBUG_PRINT("info",("spider trx->bulk_access_conn_first=%p",
+    trx->bulk_access_conn_first));
+  trx->bulk_access_conn_first = NULL;
+#endif
+
+  if (all || (!thd_test_options(thd, OPTION_NOT_AUTOCOMMIT | OPTION_BEGIN)))
+  {
+    if (trx->trx_start)
+    {
+      if (trx->trx_xa)
+      {
+        int tmp_error_num;
+        if (
+          (tmp_error_num = spider_internal_xa_rollback(thd, trx))
+        ) {
+          if (tmp_error_num)
+            error_num = tmp_error_num;
+        }
+        trx->trx_xa = FALSE;
+        trx->join_trx_top = NULL;
+      } else {
+        if ((conn = spider_tree_first(trx->join_trx_top)))
+        {
+          SPIDER_BACKUP_DASTATUS;
+          int tmp_error_num;
+          do {
+            if (
+              !conn->server_lost &&
+              (conn->autocommit != 1 || conn->trx_start) &&
+              (tmp_error_num = spider_db_rollback(conn))
+            ) {
+              SPIDER_CONN_RESTORE_DASTATUS_AND_RESET_TMP_ERROR_NUM;
+              if (tmp_error_num)
+                error_num = tmp_error_num;
+            }
+            if ((tmp_error_num = spider_end_trx(trx, conn)))
+            {
+              SPIDER_CONN_RESTORE_DASTATUS_AND_RESET_TMP_ERROR_NUM;
+              if (tmp_error_num)
+                error_num = tmp_error_num;
+            }
+            conn->join_trx = 0;
+          } while ((conn = spider_tree_next(conn)));
+          trx->join_trx_top = NULL;
+        }
+      }
+      trx->trx_start = FALSE;
+      trx->updated_in_this_trx = FALSE;
+      DBUG_PRINT("info",("spider trx->trx_start=FALSE"));
+      DBUG_PRINT("info",("spider trx->updated_in_this_trx=FALSE"));
+    }
+    spider_reuse_trx_ha(trx);
+    spider_free_trx_conn(trx, FALSE);
+    trx->trx_consistent_snapshot = FALSE;
+  }
+
+  spider_merge_mem_calc(trx, FALSE);
+  DBUG_RETURN(error_num);
+}
+
+int spider_xa_prepare(
+  handlerton *hton,
+  THD* thd,
+  bool all
+) {
+  int error_num;
+  SPIDER_TRX *trx;
+  TABLE *table_xa = NULL;
+  TABLE *table_xa_member = NULL;
+  DBUG_ENTER("spider_xa_prepare");
+
+  if (all || (!thd_test_options(thd, OPTION_NOT_AUTOCOMMIT | OPTION_BEGIN)))
+  {
+    if (!(trx = (SPIDER_TRX*) thd_get_ha_data(thd, spider_hton_ptr)))
+      DBUG_RETURN(0); /* transaction is not started */
+
+    DBUG_PRINT("info",("spider trx_start=%s",
+      trx->trx_start ? "TRUE" : "FALSE"));
+    DBUG_PRINT("info",("spider trx_xa=%s",
+      trx->trx_xa ? "TRUE" : "FALSE"));
+    if (trx->trx_start && trx->trx_xa)
+    {
+      if ((error_num = spider_internal_xa_prepare(
+        thd, trx, table_xa, table_xa_member, FALSE)))
+        goto error;
+      trx->trx_xa_prepared = TRUE;
+    }
+  }
+
+  DBUG_RETURN(0);
+
+error:
+  DBUG_RETURN(error_num);
+}
+
+int spider_xa_recover(
+  handlerton *hton,
+  XID* xid_list,
+  uint len
+) {
+  THD* thd = current_thd;
+  DBUG_ENTER("spider_xa_recover");
+  if (len == 0 || xid_list == NULL)
+    DBUG_RETURN(0);
+
+  if (thd)
+    DBUG_RETURN(spider_internal_xa_recover(thd, xid_list, len));
+  else
+    DBUG_RETURN(spider_initinal_xa_recover(xid_list, len));
+}
+
+int spider_xa_commit_by_xid(
+  handlerton *hton,
+  XID* xid
+) {
+  SPIDER_TRX *trx;
+  int error_num;
+  THD* thd = current_thd;
+  DBUG_ENTER("spider_xa_commit_by_xid");
+
+  if (!(trx = spider_get_trx(thd, TRUE, &error_num)))
+    goto error_get_trx;
+
+  if ((error_num = spider_internal_xa_commit_by_xid(thd, trx, xid)))
+    goto error;
+
+  DBUG_RETURN(0);
+
+error:
+error_get_trx:
+  DBUG_RETURN(error_num);
+}
+
+int spider_xa_rollback_by_xid(
+  handlerton *hton,
+  XID* xid
+) {
+  SPIDER_TRX *trx;
+  int error_num;
+  THD* thd = current_thd;
+  DBUG_ENTER("spider_xa_rollback_by_xid");
+
+  if (!(trx = spider_get_trx(thd, TRUE, &error_num)))
+    goto error_get_trx;
+
+  if ((error_num = spider_internal_xa_rollback_by_xid(thd, trx, xid)))
+    goto error;
+
+  DBUG_RETURN(0);
+
+error:
+error_get_trx:
+  DBUG_RETURN(error_num);
+}
+
+void spider_copy_table_free_trx_conn(
+  SPIDER_TRX *trx
+) {
+  SPIDER_CONN *conn;
+  DBUG_ENTER("spider_copy_table_free_trx_conn");
+  if ((conn = spider_tree_first(trx->join_trx_top)))
+  {
+    do {
+      spider_end_trx(trx, conn);
+      conn->join_trx = 0;
+    } while ((conn = spider_tree_next(conn)));
+    trx->join_trx_top = NULL;
+  }
+  spider_reuse_trx_ha(trx);
+  spider_free_trx_conn(trx, FALSE);
+  trx->trx_consistent_snapshot = FALSE;
+  spider_merge_mem_calc(trx, FALSE);
+  DBUG_VOID_RETURN;
+}
+
+int spider_end_trx(
+  SPIDER_TRX *trx,
+  SPIDER_CONN *conn
+) {
+  int error_num = 0, need_mon = 0;
+  DBUG_ENTER("spider_end_trx");
+  if (conn->table_lock == 3)
+  {
+    trx->tmp_spider->conns = &conn;
+    conn->table_lock = 0;
+    conn->disable_reconnect = FALSE;
+    if (
+      !conn->server_lost &&
+      (error_num = spider_db_unlock_tables(trx->tmp_spider, 0))
+    ) {
+      if (error_num == ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM)
+        error_num = 0;
+    }
+  } else if (!conn->table_lock)
+    conn->disable_reconnect = FALSE;
+  if (
+    conn->semi_trx_isolation >= 0 &&
+    conn->trx_isolation != conn->semi_trx_isolation
+  ) {
+    DBUG_PRINT("info",("spider conn=%p", conn));
+    DBUG_PRINT("info",("spider conn->trx_isolation=%d", conn->trx_isolation));
+    if (
+      !conn->server_lost &&
+      !conn->queued_semi_trx_isolation &&
+      (error_num = spider_db_set_trx_isolation(
+        conn, conn->trx_isolation, &need_mon))
+    ) {
+      if (
+        !conn->disable_reconnect &&
+        error_num == ER_SPIDER_REMOTE_SERVER_GONE_AWAY_NUM
+      )
+        error_num = 0;
+    }
+  }
+  conn->semi_trx_isolation = -2;
+  conn->semi_trx_isolation_chk = FALSE;
+  conn->semi_trx_chk = FALSE;
+  DBUG_RETURN(error_num);
+}
+
+int spider_check_trx_and_get_conn(
+  THD *thd,
+  ha_spider *spider,
+  bool use_conn_kind
+) {
+  int error_num, roop_count, search_link_idx;
+  SPIDER_TRX *trx;
+  SPIDER_SHARE *share = spider->share;
+  SPIDER_CONN *conn;
+  char first_byte, first_byte_bak;
+  int semi_table_lock_conn = spider_param_semi_table_lock_connection(thd,
+    share->semi_table_lock_conn);
+  DBUG_ENTER("spider_check_trx_and_get_conn");
+  if (!(trx = spider_get_trx(thd, TRUE, &error_num)))
+  {
+    DBUG_PRINT("info",("spider get trx error"));
+    DBUG_RETURN(error_num);
+  }
+  spider->wide_handler->trx = trx;
+  spider->set_error_mode();
+  if (
+    spider->wide_handler->sql_command != SQLCOM_DROP_TABLE &&
+    spider->wide_handler->sql_command != SQLCOM_ALTER_TABLE
+  ) {
+    SPIDER_TRX_HA *trx_ha = spider_check_trx_ha(trx, spider);
+    if (!trx_ha || trx_ha->wait_for_reusing)
+      spider_trx_set_link_idx_for_all(spider);
+
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+    if (use_conn_kind)
+    {
+      for (roop_count = 0; roop_count < (int) share->link_count; roop_count++)
+      {
+        if (
+/*
+          spider->conn_kind[roop_count] != SPIDER_CONN_KIND_MYSQL &&
+*/
+          share->hs_dbton_ids[spider->conn_link_idx[roop_count]] ==
+            SPIDER_DBTON_SIZE
+        ) {
+          /* can't use hs interface */
+          spider->conn_kind[roop_count] = SPIDER_CONN_KIND_MYSQL;
+          spider_clear_bit(spider->do_hs_direct_update, roop_count);
+        }
+      }
+    }
+#endif
+#endif
+
+    if (semi_table_lock_conn)
+      first_byte = '0' +
+        spider_param_semi_table_lock(thd, share->semi_table_lock);
+    else
+      first_byte = '0';
+    DBUG_PRINT("info",("spider semi_table_lock_conn = %d",
+      semi_table_lock_conn));
+    DBUG_PRINT("info",("spider semi_table_lock = %d",
+      spider_param_semi_table_lock(thd, share->semi_table_lock)));
+    DBUG_PRINT("info",("spider first_byte = %d", first_byte));
+    if (
+      !trx_ha ||
+      trx_ha->wait_for_reusing ||
+      trx->spider_thread_id != spider->spider_thread_id ||
+      trx->trx_conn_adjustment != spider->trx_conn_adjustment ||
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      (use_conn_kind &&
+        (
+          trx->trx_hs_r_conn_adjustment != spider->trx_hs_r_conn_adjustment ||
+          trx->trx_hs_w_conn_adjustment != spider->trx_hs_w_conn_adjustment
+        )
+      ) ||
+#endif
+      first_byte != *spider->conn_keys[0] ||
+      share->link_statuses[spider->conn_link_idx[spider->search_link_idx]] ==
+        SPIDER_LINK_STATUS_NG
+    ) {
+      DBUG_PRINT("info",(first_byte != *spider->conn_keys[0] ?
+        "spider change conn type" : trx != spider->wide_handler->trx ?
+        "spider change thd" : "spider next trx"));
+      spider->wide_handler->trx = trx;
+      spider->trx_conn_adjustment = trx->trx_conn_adjustment;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+      if (use_conn_kind)
+      {
+        spider->trx_hs_r_conn_adjustment = trx->trx_hs_r_conn_adjustment;
+        spider->trx_hs_w_conn_adjustment = trx->trx_hs_w_conn_adjustment;
+      }
+#endif
+      if (
+        spider->spider_thread_id != trx->spider_thread_id ||
+        spider->search_link_query_id != thd->query_id
+      ) {
+        search_link_idx = spider_conn_first_link_idx(thd,
+          share->link_statuses, share->access_balances, spider->conn_link_idx,
+          share->link_count, SPIDER_LINK_STATUS_OK);
+        if (search_link_idx == -1)
+        {
+          TABLE *table = spider->get_table();
+          TABLE_SHARE *table_share = table->s;
+          char *db = (char *) my_alloca(
+            table_share->db.length + 1 + table_share->table_name.length + 1);
+          if (!db)
+          {
+            my_error(HA_ERR_OUT_OF_MEM, MYF(0));
+            DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+          }
+          char *table_name = db + table_share->db.length + 1;
+          memcpy(db, table_share->db.str, table_share->db.length);
+          db[table_share->db.length] = '\0';
+          memcpy(table_name, table_share->table_name.str,
+            table_share->table_name.length);
+          table_name[table_share->table_name.length] = '\0';
+          my_printf_error(ER_SPIDER_ALL_LINKS_FAILED_NUM,
+            ER_SPIDER_ALL_LINKS_FAILED_STR, MYF(0), db, table_name);
+          my_afree(db);
+          DBUG_RETURN(ER_SPIDER_ALL_LINKS_FAILED_NUM);
+        } else if (search_link_idx == -2)
+        {
+          my_error(HA_ERR_OUT_OF_MEM, MYF(0));
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        spider->search_link_idx = search_link_idx;
+        spider->search_link_query_id = thd->query_id;
+      }
+      spider->spider_thread_id = trx->spider_thread_id;
+
+      first_byte_bak = *spider->conn_keys[0];
+      *spider->conn_keys[0] = first_byte;
+      for (roop_count = 0; roop_count < (int) share->link_count; roop_count++)
+      {
+        if (!spider->handler_opened(roop_count, SPIDER_CONN_KIND_MYSQL))
+          spider->conns[roop_count] = NULL;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+        if (!spider->handler_opened(roop_count, SPIDER_CONN_KIND_HS_READ))
+          spider->hs_r_conns[roop_count] = NULL;
+        if (!spider->handler_opened(roop_count, SPIDER_CONN_KIND_HS_WRITE))
+          spider->hs_w_conns[roop_count] = NULL;
+#endif
+      }
+      bool search_link_idx_is_checked = FALSE;
+      for (
+        roop_count = spider_conn_link_idx_next(share->link_statuses,
+          spider->conn_link_idx, -1, share->link_count,
+          SPIDER_LINK_STATUS_RECOVERY);
+        roop_count < (int) share->link_count;
+        roop_count = spider_conn_link_idx_next(share->link_statuses,
+          spider->conn_link_idx, roop_count, share->link_count,
+          SPIDER_LINK_STATUS_RECOVERY)
+      ) {
+        uint tgt_conn_kind = (use_conn_kind ? spider->conn_kind[roop_count] :
+          SPIDER_CONN_KIND_MYSQL);
+        if (roop_count == spider->search_link_idx)
+          search_link_idx_is_checked = TRUE;
+        if (
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+          (
+#endif
+            tgt_conn_kind == SPIDER_CONN_KIND_MYSQL &&
+              !spider->conns[roop_count]
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+          ) ||
+          (tgt_conn_kind == SPIDER_CONN_KIND_HS_READ &&
+            !spider->hs_r_conns[roop_count]) ||
+          (tgt_conn_kind == SPIDER_CONN_KIND_HS_WRITE &&
+            !spider->hs_w_conns[roop_count])
+#endif
+        ) {
+          *spider->conn_keys[roop_count] = first_byte;
+          if (
+            !(conn =
+              spider_get_conn(share, roop_count,
+                spider->conn_keys[roop_count], trx,
+                spider, FALSE, TRUE,
+                use_conn_kind ? spider->conn_kind[roop_count] :
+                  SPIDER_CONN_KIND_MYSQL,
+                &error_num))
+          ) {
+            if (
+              share->monitoring_kind[roop_count] &&
+              spider->need_mons[roop_count]
+            ) {
+              error_num = spider_ping_table_mon_from_table(
+                trx,
+                trx->thd,
+                share,
+                roop_count,
+                (uint32) share->monitoring_sid[roop_count],
+                share->table_name,
+                share->table_name_length,
+                spider->conn_link_idx[roop_count],
+                NULL,
+                0,
+                share->monitoring_kind[roop_count],
+                share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
+                TRUE
+              );
+            }
+            DBUG_PRINT("info",("spider get conn error"));
+            *spider->conn_keys[0] = first_byte_bak;
+            spider->spider_thread_id = 0;
+            DBUG_RETURN(error_num);
+          }
+          conn->error_mode &= spider->error_mode;
+        }
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+        if (
+          spider->do_direct_update &&
+          spider_bit_is_set(spider->do_hs_direct_update, roop_count) &&
+          !spider->hs_w_conns[roop_count]
+        ) {
+          if (
+            !(conn =
+              spider_get_conn(share, roop_count,
+                spider->conn_keys[roop_count], trx,
+                spider, FALSE, TRUE,
+                SPIDER_CONN_KIND_HS_WRITE,
+                &error_num))
+          ) {
+            if (
+              share->monitoring_kind[roop_count] &&
+              spider->need_mons[roop_count]
+            ) {
+              error_num = spider_ping_table_mon_from_table(
+                trx,
+                trx->thd,
+                share,
+                roop_count,
+                (uint32) share->monitoring_sid[roop_count],
+                share->table_name,
+                share->table_name_length,
+                spider->conn_link_idx[roop_count],
+                NULL,
+                0,
+                share->monitoring_kind[roop_count],
+                share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
+                TRUE
+              );
+            }
+            DBUG_PRINT("info",("spider get conn error"));
+            *spider->conn_keys[0] = first_byte_bak;
+            spider->spider_thread_id = 0;
+            DBUG_RETURN(error_num);
+          }
+          conn->error_mode &= spider->error_mode;
+        }
+#endif
+#endif
+      }
+      if (!search_link_idx_is_checked)
+      {
+        TABLE *table = spider->get_table();
+        TABLE_SHARE *table_share = table->s;
+        char *db = (char *) my_alloca(
+          table_share->db.length + 1 + table_share->table_name.length + 1);
+        if (!db)
+        {
+          my_error(HA_ERR_OUT_OF_MEM, MYF(0));
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        char *table_name = db + table_share->db.length + 1;
+        memcpy(db, table_share->db.str, table_share->db.length);
+        db[table_share->db.length] = '\0';
+        memcpy(table_name, table_share->table_name.str,
+          table_share->table_name.length);
+        table_name[table_share->table_name.length] = '\0';
+        my_printf_error(ER_SPIDER_LINK_MON_JUST_NG_NUM,
+          ER_SPIDER_LINK_MON_JUST_NG_STR, MYF(0), db, table_name);
+        my_afree(db);
+        DBUG_RETURN(ER_SPIDER_LINK_MON_JUST_NG_NUM);
+      }
+    } else {
+      DBUG_PRINT("info",("spider link_status = %ld",
+        share->link_statuses[spider->conn_link_idx[spider->search_link_idx]]));
+      bool search_link_idx_is_checked = FALSE;
+      for (
+        roop_count = spider_conn_link_idx_next(share->link_statuses,
+          spider->conn_link_idx, -1, share->link_count,
+          SPIDER_LINK_STATUS_RECOVERY);
+        roop_count < (int) share->link_count;
+        roop_count = spider_conn_link_idx_next(share->link_statuses,
+          spider->conn_link_idx, roop_count, share->link_count,
+          SPIDER_LINK_STATUS_RECOVERY)
+      ) {
+        if (roop_count == spider->search_link_idx)
+          search_link_idx_is_checked = TRUE;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+        if (
+          !use_conn_kind ||
+          spider->conn_kind[roop_count] == SPIDER_CONN_KIND_MYSQL
+        ) {
+#endif
+          conn = spider->conns[roop_count];
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+        } else if (spider->conn_kind[roop_count] == SPIDER_CONN_KIND_HS_READ)
+        {
+          conn = spider->hs_r_conns[roop_count];
+        } else {
+          conn = spider->hs_w_conns[roop_count];
+        }
+#endif
+
+        if (!conn)
+        {
+          DBUG_PRINT("info",("spider get conn %d", roop_count));
+          if (
+            !(conn =
+              spider_get_conn(share, roop_count,
+                spider->conn_keys[roop_count], trx,
+                spider, FALSE, TRUE,
+                use_conn_kind ? spider->conn_kind[roop_count] :
+                  SPIDER_CONN_KIND_MYSQL,
+                &error_num))
+          ) {
+            if (
+              share->monitoring_kind[roop_count] &&
+              spider->need_mons[roop_count]
+            ) {
+              error_num = spider_ping_table_mon_from_table(
+                trx,
+                trx->thd,
+                share,
+                roop_count,
+                (uint32) share->monitoring_sid[roop_count],
+                share->table_name,
+                share->table_name_length,
+                spider->conn_link_idx[roop_count],
+                NULL,
+                0,
+                share->monitoring_kind[roop_count],
+                share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
+                TRUE
+              );
+            }
+            DBUG_PRINT("info",("spider get conn error"));
+            DBUG_RETURN(error_num);
+          }
+        }
+        conn->error_mode &= spider->error_mode;
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+#ifdef HANDLER_HAS_DIRECT_UPDATE_ROWS
+        if (
+          spider->do_direct_update &&
+          spider_bit_is_set(spider->do_hs_direct_update, roop_count)
+        ) {
+          conn = spider->hs_w_conns[roop_count];
+          if (!conn)
+          {
+            DBUG_PRINT("info",("spider get hs_w_conn %d", roop_count));
+            if (
+              !(conn =
+                spider_get_conn(share, roop_count,
+                  spider->conn_keys[roop_count], trx,
+                  spider, FALSE, TRUE,
+                  SPIDER_CONN_KIND_HS_WRITE,
+                  &error_num))
+            ) {
+              if (
+                share->monitoring_kind[roop_count] &&
+                spider->need_mons[roop_count]
+              ) {
+                error_num = spider_ping_table_mon_from_table(
+                  trx,
+                  trx->thd,
+                  share,
+                  roop_count,
+                  (uint32) share->monitoring_sid[roop_count],
+                  share->table_name,
+                  share->table_name_length,
+                  spider->conn_link_idx[roop_count],
+                  NULL,
+                  0,
+                  share->monitoring_kind[roop_count],
+                  share->monitoring_limit[roop_count],
+                  share->monitoring_flag[roop_count],
+                  TRUE
+                );
+              }
+              DBUG_PRINT("info",("spider get conn error"));
+              DBUG_RETURN(error_num);
+            }
+          }
+        }
+        conn->error_mode &= spider->error_mode;
+#endif
+#endif
+      }
+      if (!search_link_idx_is_checked)
+      {
+        TABLE *table = spider->get_table();
+        TABLE_SHARE *table_share = table->s;
+        char *db = (char *) my_alloca(
+          table_share->db.length + 1 + table_share->table_name.length + 1);
+        if (!db)
+        {
+          my_error(HA_ERR_OUT_OF_MEM, MYF(0));
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+        char *table_name = db + table_share->db.length + 1;
+        memcpy(db, table_share->db.str, table_share->db.length);
+        db[table_share->db.length] = '\0';
+        memcpy(table_name, table_share->table_name.str,
+          table_share->table_name.length);
+        table_name[table_share->table_name.length] = '\0';
+        my_printf_error(ER_SPIDER_LINK_MON_JUST_NG_NUM,
+          ER_SPIDER_LINK_MON_JUST_NG_STR, MYF(0), db, table_name);
+        my_afree(db);
+        DBUG_RETURN(ER_SPIDER_LINK_MON_JUST_NG_NUM);
+      }
+    }
+    spider->set_first_link_idx();
+    DBUG_RETURN(spider_create_trx_ha(trx, spider, trx_ha));
+  }
+  spider->spider_thread_id = trx->spider_thread_id;
+  DBUG_RETURN(0);
+}
+
+THD *spider_create_tmp_thd()
+{
+  THD *thd;
+  DBUG_ENTER("spider_create_tmp_thd");
+  if (!(thd = SPIDER_new_THD((my_thread_id) 0)))
+    DBUG_RETURN(NULL);
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100000
+  thd->killed = NOT_KILLED;
+#else
+  thd->killed = THD::NOT_KILLED;
+#endif
+#if MYSQL_VERSION_ID < 50500
+  thd->locked_tables = FALSE;
+#endif
+  thd->proc_info = "";
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100200
+#else
+  thd->thread_id = thd->variables.pseudo_thread_id = 0;
+#endif
+  thd->thread_stack = (char*) &thd;
+  thd->store_globals();
+  lex_start(thd);
+  DBUG_RETURN(thd);
+}
+
+void spider_free_tmp_thd(
+  THD *thd
+) {
+  DBUG_ENTER("spider_free_tmp_thd");
+  thd->cleanup();
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100000
+  thd->reset_globals();
+#else
+  thd->restore_globals();
+#endif
+  delete thd;
+  DBUG_VOID_RETURN;
+}
+
+int spider_create_trx_ha(
+  SPIDER_TRX *trx,
+  ha_spider *spider,
+  SPIDER_TRX_HA *trx_ha
+) {
+  bool need_create;
+  char *tmp_name;
+  uint *conn_link_idx;
+  uchar *conn_can_fo;
+  SPIDER_SHARE *share = spider->share;
+  DBUG_ENTER("spider_create_trx_ha");
+  if (!trx_ha)
+  {
+    DBUG_PRINT("info",("spider need create"));
+    need_create = TRUE;
+  } else if (
+    trx_ha->share != share ||
+    trx_ha->link_count != share->link_count ||
+    trx_ha->link_bitmap_size != share->link_bitmap_size
+  ) {
+    DBUG_PRINT("info",("spider need recreate"));
+    need_create = TRUE;
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+    my_hash_delete_with_hash_value(&trx->trx_ha_hash,
+      share->table_name_hash_value, (uchar*) trx_ha);
+#else
+    my_hash_delete(&trx->trx_ha_hash, (uchar*) trx_ha);
+#endif
+    spider_free(trx, trx_ha, MYF(0));
+  } else {
+    DBUG_PRINT("info",("spider use this"));
+    trx_ha->wait_for_reusing = FALSE;
+    need_create = FALSE;
+  }
+  if (need_create)
+  {
+    if (!(trx_ha = (SPIDER_TRX_HA *)
+      spider_bulk_malloc(spider_current_trx, 58, MYF(MY_WME),
+        &trx_ha, (uint) (sizeof(SPIDER_TRX_HA)),
+        &tmp_name, (uint) (sizeof(char *) * (share->table_name_length + 1)),
+        &conn_link_idx, (uint) (sizeof(uint) * share->link_count),
+        &conn_can_fo, (uint) (sizeof(uchar) * share->link_bitmap_size),
+        NullS))
+    ) {
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    trx_ha->table_name = tmp_name;
+    memcpy(trx_ha->table_name, share->table_name, share->table_name_length);
+    trx_ha->table_name[share->table_name_length] = '\0';
+    trx_ha->table_name_length = share->table_name_length;
+    trx_ha->trx = trx;
+    trx_ha->share = share;
+    trx_ha->link_count = share->link_count;
+    trx_ha->link_bitmap_size = share->link_bitmap_size;
+    trx_ha->conn_link_idx = conn_link_idx;
+    trx_ha->conn_can_fo = conn_can_fo;
+    trx_ha->wait_for_reusing = FALSE;
+    uint old_elements = trx->trx_ha_hash.array.max_element;
+#ifdef HASH_UPDATE_WITH_HASH_VALUE
+    if (my_hash_insert_with_hash_value(&trx->trx_ha_hash,
+      share->table_name_hash_value, (uchar*) trx_ha))
+#else
+    if (my_hash_insert(&trx->trx_ha_hash, (uchar*) trx_ha))
+#endif
+    {
+      spider_free(trx, trx_ha, MYF(0));
+      DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+    }
+    if (trx->trx_ha_hash.array.max_element > old_elements)
+    {
+      spider_alloc_calc_mem(spider_current_trx,
+        trx->trx_ha_hash,
+        (trx->trx_ha_hash.array.max_element - old_elements) *
+        trx->trx_ha_hash.array.size_of_element);
+    }
+  }
+  memcpy(trx_ha->conn_link_idx, spider->conn_link_idx,
+    sizeof(uint) * share->link_count);
+  memcpy(trx_ha->conn_can_fo, spider->conn_can_fo,
+    sizeof(uint) * share->link_bitmap_size);
+  DBUG_RETURN(0);
+}
+
+SPIDER_TRX_HA *spider_check_trx_ha(
+  SPIDER_TRX *trx,
+  ha_spider *spider
+) {
+  SPIDER_TRX_HA *trx_ha;
+  SPIDER_SHARE *share = spider->share;
+  DBUG_ENTER("spider_check_trx_ha");
+#ifdef SPIDER_HAS_HASH_VALUE_TYPE
+  if ((trx_ha = (SPIDER_TRX_HA *) my_hash_search_using_hash_value(
+    &trx->trx_ha_hash, share->table_name_hash_value,
+    (uchar*) share->table_name, share->table_name_length)))
+#else
+  if ((trx_ha = (SPIDER_TRX_HA *) my_hash_search(&trx->trx_ha_hash,
+    (uchar*) share->table_name, share->table_name_length)))
+#endif
+  {
+    memcpy(spider->conn_link_idx, trx_ha->conn_link_idx,
+      sizeof(uint) * share->link_count);
+    memcpy(spider->conn_can_fo, trx_ha->conn_can_fo,
+      sizeof(uint) * share->link_bitmap_size);
+    DBUG_RETURN(trx_ha);
+  }
+  DBUG_RETURN(NULL);
+}
+
+void spider_free_trx_ha(
+  SPIDER_TRX *trx
+) {
+  ulong roop_count;
+  SPIDER_TRX_HA *trx_ha;
+  DBUG_ENTER("spider_free_trx_ha");
+  for (roop_count = 0; roop_count < trx->trx_ha_hash.records; roop_count++)
+  {
+    trx_ha = (SPIDER_TRX_HA *) my_hash_element(&trx->trx_ha_hash, roop_count);
+    spider_free(spider_current_trx, trx_ha, MYF(0));
+  }
+  my_hash_reset(&trx->trx_ha_hash);
+  DBUG_VOID_RETURN;
+}
+
+void spider_reuse_trx_ha(
+  SPIDER_TRX *trx
+) {
+  ulong roop_count;
+  SPIDER_TRX_HA *trx_ha;
+  DBUG_ENTER("spider_reuse_trx_ha");
+  if (trx->trx_ha_reuse_count < 10000)
+  {
+    trx->trx_ha_reuse_count++;
+    for (roop_count = 0; roop_count < trx->trx_ha_hash.records; roop_count++)
+    {
+      trx_ha = (SPIDER_TRX_HA *) my_hash_element(&trx->trx_ha_hash,
+        roop_count);
+      trx_ha->wait_for_reusing = TRUE;
+    }
+  } else {
+    trx->trx_ha_reuse_count = 0;
+    spider_free_trx_ha(trx);
+  }
+  DBUG_VOID_RETURN;
+}
+
+void spider_trx_set_link_idx_for_all(
+  ha_spider *spider
+) {
+  int roop_count, roop_count2;
+  SPIDER_SHARE *share = spider->share;
+  long *link_statuses = share->link_statuses;
+  uint *conn_link_idx = spider->conn_link_idx;
+  int link_count = share->link_count;
+  int all_link_count = share->all_link_count;
+  uchar *conn_can_fo = spider->conn_can_fo;
+  DBUG_ENTER("spider_trx_set_link_idx_for_all");
+  DBUG_PRINT("info",("spider set link_count=%d", link_count));
+  DBUG_PRINT("info",("spider set all_link_count=%d", all_link_count));
+  memset(conn_can_fo, 0, sizeof(uchar) * share->link_bitmap_size);
+  for (roop_count = 0; roop_count < link_count; roop_count++)
+  {
+    for (roop_count2 = roop_count; roop_count2 < all_link_count;
+      roop_count2 += link_count)
+    {
+      if (link_statuses[roop_count2] <= SPIDER_LINK_STATUS_RECOVERY)
+        break;
+    }
+    if (roop_count2 < all_link_count)
+    {
+      conn_link_idx[roop_count] = roop_count2;
+      if (roop_count2 + link_count < all_link_count)
+        spider_set_bit(conn_can_fo, roop_count);
+      DBUG_PRINT("info",("spider set conn_link_idx[%d]=%d",
+        roop_count, roop_count2));
+    } else {
+      conn_link_idx[roop_count] = roop_count;
+      DBUG_PRINT("info",("spider set2 conn_link_idx[%d]=%d",
+        roop_count, roop_count));
+    }
+    spider->conn_keys[roop_count] =
+      ADD_TO_PTR(spider->conn_keys_first_ptr,
+        PTR_BYTE_DIFF(share->conn_keys[conn_link_idx[roop_count]],
+          share->conn_keys[0]), char*);
+    DBUG_PRINT("info",("spider conn_keys[%d]=%s",
+      roop_count, spider->conn_keys[roop_count]));
+#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
+    spider->hs_r_conn_keys[roop_count] =
+      ADD_TO_PTR(spider->conn_keys_first_ptr,
+        PTR_BYTE_DIFF(share->hs_read_conn_keys[conn_link_idx[roop_count]],
+          share->conn_keys[0]), char*);
+    DBUG_PRINT("info",("spider hs_r_conn_keys[%d]=%s",
+      roop_count, spider->hs_r_conn_keys[roop_count]));
+    spider->hs_w_conn_keys[roop_count] =
+      ADD_TO_PTR(spider->conn_keys_first_ptr,
+        PTR_BYTE_DIFF(share->hs_write_conn_keys[conn_link_idx[roop_count]],
+          share->conn_keys[0]), char*);
+    DBUG_PRINT("info",("spider hs_w_conn_keys[%d]=%s",
+      roop_count, spider->hs_w_conn_keys[roop_count]));
+#endif
+  }
+  DBUG_VOID_RETURN;
+}
+
+int spider_trx_check_link_idx_failed(
+  ha_spider *spider
+) {
+  int roop_count;
+  SPIDER_SHARE *share = spider->share;
+  long *link_statuses = share->link_statuses;
+  uint *conn_link_idx = spider->conn_link_idx;
+  int link_count = share->link_count;
+  uchar *conn_can_fo = spider->conn_can_fo;
+  DBUG_ENTER("spider_trx_check_link_idx_failed");
+  for (roop_count = 0; roop_count < link_count; roop_count++)
+  {
+    if (
+      link_statuses[conn_link_idx[roop_count]] == SPIDER_LINK_STATUS_NG &&
+      spider_bit_is_set(conn_can_fo, roop_count)
+    ) {
+      my_message(ER_SPIDER_LINK_IS_FAILOVER_NUM,
+        ER_SPIDER_LINK_IS_FAILOVER_STR, MYF(0));
+      DBUG_RETURN(ER_SPIDER_LINK_IS_FAILOVER_NUM);
+    }
+  }
+  DBUG_RETURN(0);
+}
+
+#ifdef HA_CAN_BULK_ACCESS
+void spider_trx_add_bulk_access_conn(
+  SPIDER_TRX *trx,
+  SPIDER_CONN *conn
+) {
+  DBUG_ENTER("spider_trx_add_bulk_access_conn");
+  DBUG_PRINT("info",("spider trx=%p", trx));
+  DBUG_PRINT("info",("spider conn=%p", conn));
+  DBUG_PRINT("info",("spider conn->bulk_access_requests=%u",
+    conn->bulk_access_requests));
+  DBUG_PRINT("info",("spider conn->bulk_access_sended=%u",
+    conn->bulk_access_sended));
+  DBUG_PRINT("info",("spider trx->bulk_access_conn_first=%p",
+    trx->bulk_access_conn_first));
+  if (!conn->bulk_access_requests && !conn->bulk_access_sended)
+  {
+    if (!trx->bulk_access_conn_first)
+    {
+      trx->bulk_access_conn_first = conn;
+    } else {
+      trx->bulk_access_conn_last->bulk_access_next = conn;
+    }
+    trx->bulk_access_conn_last = conn;
+    conn->bulk_access_next = NULL;
+  }
+  conn->bulk_access_requests++;
+  DBUG_PRINT("info",("spider conn->bulk_access_requests=%u",
+    conn->bulk_access_requests));
+  DBUG_VOID_RETURN;
+}
+#endif
diff --git a/storage/spider/spd_trx.h b/storage/spider/spd_trx.h
new file mode 100644
index 00000000..3bf93aad
--- /dev/null
+++ b/storage/spider/spd_trx.h
@@ -0,0 +1,274 @@
+/* Copyright (C) 2008-2019 Kentoku Shiba
+   Copyright (C) 2019 MariaDB corp
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+int spider_free_trx_conn(
+  SPIDER_TRX *trx,
+  bool trx_free
+);
+
+int spider_free_trx_another_conn(
+  SPIDER_TRX *trx,
+  bool lock
+);
+
+int spider_trx_another_lock_tables(
+  SPIDER_TRX *trx
+);
+
+int spider_trx_another_flush_tables(
+  SPIDER_TRX *trx
+);
+
+int spider_trx_all_flush_tables(
+  SPIDER_TRX *trx
+);
+
+int spider_trx_all_unlock_tables(
+  SPIDER_TRX *trx
+);
+
+int spider_trx_all_start_trx(
+  SPIDER_TRX *trx
+);
+
+int spider_trx_all_flush_logs(
+  SPIDER_TRX *trx
+);
+
+int spider_free_trx_alloc(
+  SPIDER_TRX *trx
+);
+
+void spider_free_trx_alter_table_alloc(
+  SPIDER_TRX *trx,
+  SPIDER_ALTER_TABLE *alter_table
+);
+
+int spider_free_trx_alter_table(
+  SPIDER_TRX *trx
+);
+
+int spider_create_trx_alter_table(
+  SPIDER_TRX *trx,
+  SPIDER_SHARE *share,
+  bool now_create
+);
+
+bool spider_cmp_trx_alter_table(
+  SPIDER_ALTER_TABLE *cmp1,
+  SPIDER_ALTER_TABLE *cmp2
+);
+
+SPIDER_TRX *spider_get_trx(
+  THD *thd,
+  bool regist_allocated_thds,
+  int *error_num
+);
+
+int spider_free_trx(
+  SPIDER_TRX *trx,
+  bool need_lock,
+  bool reset_ha_data= true
+);
+
+int spider_check_and_set_trx_isolation(
+  SPIDER_CONN *conn,
+  int *need_mon
+);
+
+int spider_check_and_set_autocommit(
+  THD *thd,
+  SPIDER_CONN *conn,
+  int *need_mon
+);
+
+int spider_check_and_set_sql_log_off(
+  THD *thd,
+  SPIDER_CONN *conn,
+  int *need_mon
+);
+
+int spider_check_and_set_wait_timeout(
+  THD *thd,
+  SPIDER_CONN *conn,
+  int *need_mon
+);
+
+int spider_check_and_set_sql_mode(
+  THD *thd,
+  SPIDER_CONN *conn,
+  int *need_mon
+);
+
+int spider_check_and_set_time_zone(
+  THD *thd,
+  SPIDER_CONN *conn,
+  int *need_mon
+);
+
+int spider_start_internal_consistent_snapshot(
+  SPIDER_TRX *trx,
+  SPIDER_CONN *conn,
+  int *need_mon
+);
+
+int spider_internal_start_trx(
+  ha_spider *spider
+);
+
+int spider_internal_start_trx_for_connection(
+  ha_spider *spider,
+  SPIDER_CONN *conn,
+  int link_idx
+);
+
+int spider_internal_xa_commit(
+  THD* thd,
+  SPIDER_TRX *trx,
+  XID* xid,
+  TABLE *table_xa,
+  TABLE *table_xa_member
+);
+
+int spider_internal_xa_rollback(
+  THD* thd,
+  SPIDER_TRX *trx
+);
+
+int spider_internal_xa_prepare(
+  THD* thd,
+  SPIDER_TRX *trx,
+  TABLE *table_xa,
+  TABLE *table_xa_member,
+  bool internal_xa
+);
+
+int spider_internal_xa_recover(
+  THD* thd,
+  XID* xid_list,
+  uint len
+);
+
+int spider_initinal_xa_recover(
+  XID* xid_list,
+  uint len
+);
+
+int spider_internal_xa_commit_by_xid(
+  THD* thd,
+  SPIDER_TRX *trx,
+  XID* xid
+);
+
+int spider_internal_xa_rollback_by_xid(
+  THD* thd,
+  SPIDER_TRX *trx,
+  XID* xid
+);
+
+int spider_start_consistent_snapshot(
+  handlerton *hton,
+  THD* thd
+);
+
+int spider_commit(
+  handlerton *hton,
+  THD *thd,
+  bool all
+);
+
+int spider_rollback(
+  handlerton *hton,
+  THD *thd,
+  bool all
+);
+
+int spider_xa_prepare(
+  handlerton *hton,
+  THD* thd,
+  bool all
+);
+
+int spider_xa_recover(
+  handlerton *hton,
+  XID* xid_list,
+  uint len
+);
+
+int spider_xa_commit_by_xid(
+  handlerton *hton,
+  XID* xid
+);
+
+int spider_xa_rollback_by_xid(
+  handlerton *hton,
+  XID* xid
+);
+
+void spider_copy_table_free_trx_conn(
+  SPIDER_TRX *trx
+);
+
+int spider_end_trx(
+  SPIDER_TRX *trx,
+  SPIDER_CONN *conn
+);
+
+int spider_check_trx_and_get_conn(
+  THD *thd,
+  ha_spider *spider,
+  bool use_conn_kind
+);
+
+THD *spider_create_tmp_thd();
+
+void spider_free_tmp_thd(
+  THD *thd
+);
+
+int spider_create_trx_ha(
+  SPIDER_TRX *trx,
+  ha_spider *spider,
+  SPIDER_TRX_HA *trx_ha
+);
+
+SPIDER_TRX_HA *spider_check_trx_ha(
+  SPIDER_TRX *trx,
+  ha_spider *spider
+);
+
+void spider_free_trx_ha(
+  SPIDER_TRX *trx
+);
+
+void spider_reuse_trx_ha(
+  SPIDER_TRX *trx
+);
+
+void spider_trx_set_link_idx_for_all(
+  ha_spider *spider
+);
+
+int spider_trx_check_link_idx_failed(
+  ha_spider *spider
+);
+
+#ifdef HA_CAN_BULK_ACCESS
+void spider_trx_add_bulk_access_conn(
+  SPIDER_TRX *trx,
+  SPIDER_CONN *conn
+);
+#endif
diff --git a/storage/spider/spd_udf.cc b/storage/spider/spd_udf.cc
new file mode 100644
index 00000000..3f7cc654
--- /dev/null
+++ b/storage/spider/spd_udf.cc
@@ -0,0 +1,155 @@
+/* Copyright (C) 2009-2014 Kentoku Shiba
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+#define MYSQL_SERVER 1
+#include <my_global.h>
+#include "spd_environ.h"
+#include "mysql.h"
+#include "spd_udf.h"
+
+extern "C" {
+long long spider_direct_sql(
+  UDF_INIT *initid,
+  UDF_ARGS *args,
+  char *is_null,
+  char *error
+) {
+  return spider_direct_sql_body(initid, args, is_null, error, FALSE);
+}
+
+my_bool spider_direct_sql_init(
+  UDF_INIT *initid,
+  UDF_ARGS *args,
+  char *message
+) {
+  return spider_direct_sql_init_body(initid, args, message, FALSE);
+}
+
+void spider_direct_sql_deinit(
+  UDF_INIT *initid
+) {
+  spider_direct_sql_deinit_body(initid);
+}
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+long long spider_bg_direct_sql(
+  UDF_INIT *initid,
+  UDF_ARGS *args,
+  char *is_null,
+  char *error
+) {
+  return spider_direct_sql_bg_end(initid);
+}
+
+my_bool spider_bg_direct_sql_init(
+  UDF_INIT *initid,
+  UDF_ARGS *args,
+  char *message
+) {
+  return spider_direct_sql_init_body(initid, args, message, TRUE);
+}
+
+void spider_bg_direct_sql_deinit(
+  UDF_INIT *initid
+) {
+  spider_direct_sql_deinit_body(initid);
+}
+
+void spider_bg_direct_sql_clear(
+  UDF_INIT *initid,
+  char *is_null,
+  char *error
+) {
+  spider_direct_sql_bg_start(initid);
+}
+
+void spider_bg_direct_sql_add(
+  UDF_INIT *initid,
+  UDF_ARGS *args,
+  char *is_null,
+  char *error
+) {
+  spider_direct_sql_body(initid, args, is_null, error, TRUE);
+}
+#endif
+
+long long spider_ping_table(
+  UDF_INIT *initid,
+  UDF_ARGS *args,
+  char *is_null,
+  char *error
+) {
+  return spider_ping_table_body(initid, args, is_null, error);
+}
+
+my_bool spider_ping_table_init(
+  UDF_INIT *initid,
+  UDF_ARGS *args,
+  char *message
+) {
+  return spider_ping_table_init_body(initid, args, message);
+}
+
+void spider_ping_table_deinit(
+  UDF_INIT *initid
+) {
+  spider_ping_table_deinit_body(initid);
+}
+
+long long spider_flush_table_mon_cache(
+  UDF_INIT *initid,
+  UDF_ARGS *args,
+  char *is_null,
+  char *error
+) {
+  return spider_flush_table_mon_cache_body();
+}
+
+my_bool spider_flush_table_mon_cache_init(
+  UDF_INIT *initid,
+  UDF_ARGS *args,
+  char *message
+) {
+  return FALSE;
+}
+
+void spider_flush_table_mon_cache_deinit(
+  UDF_INIT *initid
+) {
+}
+
+long long spider_copy_tables(
+  UDF_INIT *initid,
+  UDF_ARGS *args,
+  char *is_null,
+  char *error
+) {
+  return spider_copy_tables_body(initid, args, is_null, error);
+}
+
+my_bool spider_copy_tables_init(
+  UDF_INIT *initid,
+  UDF_ARGS *args,
+  char *message
+) {
+  return spider_copy_tables_init_body(initid, args, message);
+}
+
+void spider_copy_tables_deinit(
+  UDF_INIT *initid
+) {
+  spider_copy_tables_deinit_body(initid);
+}
+}
diff --git a/storage/spider/spd_udf.def b/storage/spider/spd_udf.def
new file mode 100644
index 00000000..d0d7d53e
--- /dev/null
+++ b/storage/spider/spd_udf.def
@@ -0,0 +1,20 @@
+LIBRARY		ha_spider
+VERSION		1.0
+EXPORTS
+  spider_direct_sql
+  spider_direct_sql_init
+  spider_direct_sql_deinit
+  spider_bg_direct_sql
+  spider_bg_direct_sql_init
+  spider_bg_direct_sql_deinit
+  spider_bg_direct_sql_clear
+  spider_bg_direct_sql_add
+  spider_ping_table
+  spider_ping_table_init
+  spider_ping_table_deinit
+  spider_flush_table_mon_cache
+  spider_flush_table_mon_cache_init
+  spider_flush_table_mon_cache_deinit
+  spider_copy_tables
+  spider_copy_tables_init
+  spider_copy_tables_deinit
diff --git a/storage/spider/spd_udf.h b/storage/spider/spd_udf.h
new file mode 100644
index 00000000..d00a6151
--- /dev/null
+++ b/storage/spider/spd_udf.h
@@ -0,0 +1,79 @@
+/* Copyright (C) 2009-2014 Kentoku Shiba
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+long long spider_direct_sql_body(
+  UDF_INIT *initid,
+  UDF_ARGS *args,
+  char *is_null,
+  char *error,
+  my_bool bg
+);
+
+my_bool spider_direct_sql_init_body(
+  UDF_INIT *initid,
+  UDF_ARGS *args,
+  char *message,
+  my_bool bg
+);
+
+void spider_direct_sql_deinit_body(
+  UDF_INIT *initid
+);
+
+#ifndef WITHOUT_SPIDER_BG_SEARCH
+void spider_direct_sql_bg_start(
+  UDF_INIT *initid
+);
+
+long long spider_direct_sql_bg_end(
+  UDF_INIT *initid
+);
+#endif
+
+long long spider_ping_table_body(
+  UDF_INIT *initid,
+  UDF_ARGS *args,
+  char *is_null,
+  char *error
+);
+
+my_bool spider_ping_table_init_body(
+  UDF_INIT *initid,
+  UDF_ARGS *args,
+  char *message
+);
+
+void spider_ping_table_deinit_body(
+  UDF_INIT *initid
+);
+
+long long spider_flush_table_mon_cache_body();
+
+long long spider_copy_tables_body(
+  UDF_INIT *initid,
+  UDF_ARGS *args,
+  char *is_null,
+  char *error
+);
+
+my_bool spider_copy_tables_init_body(
+  UDF_INIT *initid,
+  UDF_ARGS *args,
+  char *message
+);
+
+void spider_copy_tables_deinit_body(
+  UDF_INIT *initid
+);
diff --git a/storage/spider/spider.cnf b/storage/spider/spider.cnf
new file mode 100644
index 00000000..ebc9968b
--- /dev/null
+++ b/storage/spider/spider.cnf
@@ -0,0 +1,7 @@
+[mariadb]
+#
+# Uncomment line to enable
+#
+#plugin-load-add = ha_spider
+
+# Read more at https://mariadb.com/kb/en/spider/